Class / Patent application number | Description | Number of patent applications / Date published |
606206000 | Jaws biased to open or closed position | 74 |
20080243175 | Surgical Gripping Tool Having Dual-Linkage, Force Multiplying Coupler and Shaped to Grip Multiple Size Rods - A surgical gripping tool includes a dual-linkage, force multiplying coupling that increases the force applied to surgical rods for a given force applied to the tool handles. In some embodiments, recesses in the tool that grip surgical rods have complex surfaces comprising multiple radii, allowing the tool to securely grip surgical rods of different diameters. The recess radii may be undersized relative to the associated rod size. In one embodiment, the coupling multiplies an applied force by a factor of over 20. | 10-02-2008 |
20080243176 | GUIDE TUBE SYSTEMS AND METHODS - Disclosed herein are various systems and methods for guiding, supporting, and/or housing instruments. One exemplary system includes a guide tube having a manipulation section and mated with rails carrying instrument control members. Moving the rails with respect to the guide tube, or another point of reference, can control movement of the manipulation section. | 10-02-2008 |
20080262539 | TISSUE GRASPING APPARATUS - A tissue grasping apparatus includes a control member, an elongated shaft, and a tissue grasping member attached to the distal end of the elongated shaft. An activation mechanism provides an user-operable connection between the control member and the tissue grasping member. In an embodiment, the tissue grasping member includes a pair of jaws configured to open to an included angle between the jaws of 180 degrees or more. In an embodiment, the activation mechanism includes a flexible drive wire attached to the penetrating member. | 10-23-2008 |
20090012556 | Laparoscopic tissue thickness and clamp load measuring devices - A surgical instrument having opposed jaws that can be selectively moved between open and closed positions. Various embodiments include components for measuring the thickness of tissue clamped between the opposed jaws. Some embodiments are configured to ascertain the amount of compressive force that is being applied to the tissue while the thickness of the tissue is being determined. The tissue thickness data is displayed on the instrument itself and/or on a display that is remote from the instrument. The various embodiments may comprise different types of surgical instruments such as surgical staplers and graspers. A jaw arrangement with jaws shaped to define a cradle that corresponds to a cross-sectional shape of an object is also disclosed. The components that generate the thickness data may be electrically or mechanically actuated. | 01-08-2009 |
20090018572 | Device for grasping and/or severing - A surgical device ( | 01-15-2009 |
20090088792 | Articulating Surgical Instrument - A surgical instrument is provided having articulating, distal end rotation and tip rotational functions. The articulating function includes a wheel rotatable relative to a handle of the surgical instrument and operable to move an articulating section of the surgical instrument from a neutral or straight position to an articulated or bent position. The wheel incorporates a groove in the form of an Archimedes spiral to drive the articulating section between the neutral and bent positions. | 04-02-2009 |
20090093841 | HANDLELESS CLAMPING DEVICE - The present invention relates to surgical clamps and clamp devices that provide a handle-free surgical field. The clamp jaws may be opened or closed by a rotationally or translationally moveable drive element that may be actuated from a position proximal or distal to the jaws. The surgical clamps may also be deployed using a clamp applier which slidably engages the clamp along a wire to releasably attach itself to the clamp. | 04-09-2009 |
20090093842 | HANDLELESS CLAMPING DEVICE - The present invention relates to surgical clamps and clamp devices that provide a handle-free surgical field. The clamp jaws may be opened or closed by a rotationally or translationally moveable drive element that may be actuated from a position proximal or distal to the jaws. The surgical clamps may also be deployed using a clamp applier which slidably engages the clamp along a wire to releasably attach itself to the clamp. | 04-09-2009 |
20090105749 | Insertion and extraction tools for lacrimal implants - Insertion and extraction tool, systems, and methods for use with lacrimal implants. An insertion tool is disclosed that includes a proximal end, a distal end, and a tool body therebetween. The distal end includes a mechanical coupling to receive a cartridge preloaded with a lacrimal implant, and a plunger configured to dispense the lacrimal implant from a preloaded cartridge. | 04-23-2009 |
20090105750 | ERGONOMIC SURGICAL INSTRUMENTS - A surgical instrument handle assembly includes a housing having a proximal end and a distal end. A proximal opening is formed at the proximal end of the housing. A distal opening is formed at the distal end of the housing. The proximal and the distal openings define a longitudinal axis. A handle extends downwardly from the longitudinal axis. The handle defines a proximal contact surface, a saddle surface, and a stabilization tail. A trigger is pivotally attached to the housing and is pivotally moveable relative to the handle. | 04-23-2009 |
20090105751 | MINIMALLY INVASIVE REPAIR OF A VALVE LEAFLET IN A BEATING HEART - A device for performing minimally invasive repair of mitral valve leaflets in a beating heart through the delivery and implantation of artificial chordae tendinae includes a handle for positioning the device into a chest cavity of the patient, a capture assembly adapted to capture a valve leaflet between distal an proximal tip portions, a needle adapted to penetrate the valve leaflet, and a capture confirmation system for verifying capture of the valve leaflet between the distal and proximal tip portions. | 04-23-2009 |
20090131975 | OVERMOLDED GRASPER JAW - The invention is directed to a surgical instrument comprising an elongate tube extending along an axis including a camming rod and an actuation mechanism operably connected to the camming rod, the camming rod having a camming pin and a camming projection; a first jaw spine having a first cam slot, a first interior camming surface, and a first exterior camming surface; and a second jaw spine having a second cam slot, a second interior camming surface, and a second exterior camming surface, the second jaw spine pivotally connected to the first jaw spine at a common pivot pin operably connected to the elongate tube to open and close the jaw spines in response to movement of the actuation mechanism. The camming pin rides along the first and second interior camming surfaces and operates to close the jaw spines when the camming rod is moved proximally. When the camming rod moves distally, the camming projection rides on the first and second exterior camming surfaces formed on the proximal sides of the respective first and second jaw spines and operates to open the jaw spines. A feature of the invention is one camming surface on each jaw spine can facilitate closing the jaw spines while the other camming surface on each jaw spine can facilitate opening the jaw spines. These two camming surfaces on each jaw spine can be widely separated. The jaw spines can be formed of a metallic material and are overmolded with an atraumatic plastic material. By overmolding the plastic onto the metal spine, an atraumatic outer surface can be formed of the plastic material along with a high degree of detail. | 05-21-2009 |
20100057121 | LAPAROSCOPIC INSTRUMENT AND RELATED SURGICAL METHOD - A medical instrument insertable through a cannula, the instrument comprising an elongate shaft; and an operative tip having a first jaw and a second jaw movable with respect to the first jaw. The operative tip disposed at a distal end of said elongate shaft and being disposed on said shaft for rotation relative to at least a distal end portion of said shaft about a longitudinal axis of said distal end portion. | 03-04-2010 |
20100106183 | Surgical instrument - The surgical instrument includes a distal tool, a rigid or flexible elongated shaft that supports the distal tool, and a proximal handle or control member, where the tool and the handle are coupled to the respective distal and proximal ends of the elongated shaft via distal and proximal bendable motion members. Actuation means extends between said distal and proximal members whereby any deflection of said control handle with respect to said elongated instrument shaft causes a corresponding bending of said distal motion member for control of said working member. The proximal movable member comprises a movable ring assembly supported from the handle and adapted for three dimensional motion relative to the handle. A manually rotatable member may be arranged adjacent to the control handle for manually rotating the instrument shaft and working member relative to the control handle. A locking member may be supported from the control handle. The locking member is manually operable by a user and includes a follower the position of which is responsive to the position of the movable members. | 04-29-2010 |
20100137901 | Forceps with pressure regulation - The invention relates to a forceps with two branches ( | 06-03-2010 |
20100191278 | Surgical instrument - The surgical instrument includes a distal tool, a rigid or flexible elongated shaft that supports the distal tool, and a proximal handle or control member, where the tool and the handle are coupled to the respective distal and proximal ends of the elongated shaft via distal and proximal bendable motion members. Actuation means extends between said distal and proximal members whereby any deflection of said control handle with respect to said elongated instrument shaft causes a corresponding bending of said distal motion member for control of said working member. A manually rotatable member is arranged adjacent to the control handle for manually rotating the instrument shaft and working member relative to the control handle. | 07-29-2010 |
20100228284 | SURGICAL TOOL HAVING POSITIVELY POSITIONABLE TENDON-ACTUATED MULTI-DISK WRIST JOINT - The present invention is directed to a tool having a wrist mechanism that provides pitch and yaw rotation in such a way that the tool has no singularity in roll, pitch, and yaw. A positively positionable multi-disk wrist mechanism includes a plurality of disks or vertebrae stacked in series. Each vertebra is configured to rotate in pitch or in yaw with respect to each neighboring vertebra. Actuation cables are used to manipulate and control movement of the vertebrae. In specific embodiments, some of the cables are distal cables that extend from a proximal vertebra through one or more intermediate vertebrae to a distal vertebra, while the remaining cables are medial cables that extend from the proximal vertebra to one or more of the intermediate vertebrae. The cables are actuated by a pivoted plate cable actuator mechanism. In specific embodiments, the actuator mechanism includes a plurality of small radius holes or grooves for receiving the medial cables and a plurality of large radius holes or grooves for receiving the distal cables. The holes or grooves restrain the medial cables to a small radius of motion and the distal cables to a large radius of motion, so that the medial cables to the medial vertebra move only a fraction of the amount as the distal cables to the distal vertebra, so as to achieve precise control and manipulation of the vertebrae. | 09-09-2010 |
20100262181 | ENDO PSI AND CABINET THEREFOR - An aspect of the invention provides a PSI (purse-string instrument) for laparoscopic surgery that includes: a first jaw; a second jaw configured to clamp a suture site in cooperation with the first jaw; a first rod, which is coupled to one end of the first jaw and configured to rotate the first jaw such that the suture site is clamped, and which is held inside a shaft; and a second rod, which is coupled to one end of the second jaw and configured to rotate the second jaw such that the second jaw faces an extending direction of the shaft. The PSI can be inserted using the incision made beforehand in the surgical site during laparoscopic surgery and thus does not require making additional cuts in the patient's body or disassembling/reassembling the instrument when inserting the instrument into the abdominal cavity. | 10-14-2010 |
20100268268 | Medical Instrument With A Rotatable Detent - A medical instrument comprises a shaft, a handle connected to said shaft and having a movable gripping part. An insert is guided along said shaft and connected to said movable part at its proximal end. A tool is provided at a distal end of said insert. A lock is provided for locking said movable grip part in a position. A detent is provided for releasing said locking of said lock. A rotatable stopping member is arranged on said movable grip part. A rotational plane of said rotatable stopping member lying across a longitudinal axis of a movement direction of said movable grip part. Said rotatable stopping member can be rotated between a first position not influencing said locking function of said lock and a second position keeping said lock permanently away from said locking engagement. | 10-21-2010 |
20100274278 | ENDOSCOPIC TISSUE GRASPING APPARATUS AND METHOD - An improved endoscopic tissue grasping apparatus and method provide for enhanced tissue retention. In one separate aspect, an endoscopic tool may include an improved handle comprising a rachet interface for retaining first and second jaw members at in a closed position at a distal end of the tool. In another separate aspect, a tissue grasper is provided in which opposing first and second jaw members may be effectively locked in a closed position by virtue of an articulating linkage arrangement. | 10-28-2010 |
20100292728 | JAW-TYPE GRAB FOR A SURGICAL INSTRUMENT - A grab for a surgical instrument has an elongated tube having a rigid outer part and a rigid inner part interconnected by a pivot pin extending along an axis transverse to the parts. A pair of jaws are pivotal on an outer end of the outer part between open and closed positions. An elongated actuating rod has a rigid outer part in the outer tube part and connected to the jaws, a rigid inner part in the inner tube part, and a flexible center part longitudinally interconnecting the rod inner and outer parts and passing through or around the pivot pin. The pivot pin is formed on the pivot axis with a throughgoing slot and the flexible part of the rod extends through the slot. | 11-18-2010 |
20100318119 | BIOPSY FORCEPS ASSEMBLIES - Embodiments of the invention include devices for obtaining tissue including a proximal actuator and a distal assembly having first and second end effectors. The first and second end effectors include the features of at least one element within the inner surface either of the first and second end effectors for aiding in the capture and retention of a targeted tissue sample. | 12-16-2010 |
20110022078 | ARTICULATING MECHANISM - An articulating mechanism is provided with at least one pair of spherical joints interconnected by a set of tension members. Each joint includes a ball member, a socket member configured to pivotably receive at least a portion of the ball member, and at least one tension member extending through both the ball and socket members parallel to and offset from a central longitudinal axis of the joint. | 01-27-2011 |
20110029010 | FLEXIBLE DISSECTING FORCEPS - A medical dissector having an elongate flexible shaft and dissecting jaws. The jaws moveable from opened to closed and from closed to open using pull actuation of an elongate actuation members such as a pull cables. A first pull cable controls opening of the jaws, while a second pull cable controls closing of the jaws. The shaft and jaws of the instrument are axially rotatable relative to the handle to rotate the jaws about the longitudinal axis of the shaft. | 02-03-2011 |
20110040322 | Device & method for the positioning of tissue during laparoscopic or endoscopic surgery - A surgical device and method for the retracting, maneuvering, and re-positioning of tissue and/or a body organ during endoscopic and laparoscopic procedures. The surgical apparatus comprises a separable grasping device with a detachable head, an exteriorly-operated handle mechanism, surgical needles, and lengths of suture. The disclosed device enables a physician, using a plurality of lengths of sutures simultaneously connected to (a) the exteriorly exposed handle mechanism and (b) the detachable head, positioned at clasping points on the organ, to rearrange the orientation of tissue or the organ for better accessibility, analysis, and/or exposure to accompanying surgical instruments in situ. The method presented minimizes the number of bodily incisions required to perform surgery by means of endoscope or laparoscopic equipment. | 02-17-2011 |
20110046660 | Endoscopic Forceps With Removable Handle - An exemplary forceps system for use within a tool channel of an endoscope comprises an elongated body extending from a proximal end and a distal end having one or more internal lumens. An actuator is slidably positioned within a first lumen, and actuatable jaws are removeably coupled to a first end of the actuator near the distal end. A handle is removeably coupleable to the proximal end of the body, the removable handle having a forceps actuator operatively engageable with a second end of the actuator so as to control the actuatable jaws when the handle is coupled to the body. A single or double balloon closure device having an inflatable anchor on a peritoneal side and a narrow inflatable portion, is also provided. The narrow portion may be shaped to follow the shape of the transgastric cut. The balloon closure device may deliver medication speed up the healing process and may contain a biocompatible sealant that may be dispersed over the incision site and/or used to keep the anchor on the peritoneal side inflated. | 02-24-2011 |
20110046661 | SURGICAL INSTRUMENT WHICH CAN BE DISASSEMBLED - The invention relates to a surgical instrument ( | 02-24-2011 |
20110087269 | ARTICULABLE LAPAROSCOPIC INSTRUMENT - A medical device comprises a handle comprises an actuator. A shaft extends distally from the handle. A first shaft segment extends proximally from the handle and has a proximal end and a distal end. A second shaft segment has a proximal end and a distal end and is pivotably supported with respect to the distal end of the first shaft segment at a position offset from a longitudinal axis of the shaft in a first offset direction. A third shaft segment has a proximal end and a distal end and is pivotably supported with respect to the distal end of the second shaft segment at a position offset from the longitudinal axis of the shaft in a second offset direction different from the first offset direction. A first member extends through at least a portion of the first shaft segment and is operatively associated with the actuator. A second member extends through at least a portion of the second shaft segment. The second member has a proximal end pivotably supported with respect to the distal end of the first member and a distal end pivotably supported with respect to the third shaft segment. The actuator is operative to provide substantially simultaneous compound articulation of the second and third shaft segments. | 04-14-2011 |
20110184459 | Articulating Surgical Device - An articulation mechanism for a surgical instrument includes an articulation assembly, a plurality of cables, and a trigger. The cables are coupled to the articulation assembly at a proximal end thereof and extend distally therefrom. The cables are configured to engage an end effector assembly of the surgical instrument at a distal end thereof. The trigger is coupled to the articulation assembly and is selectively moveable from a shipping position to a use position. In the shipping position, the cables are substantially un-tensioned. In the use position, the cables are disposed in an initial tensioned position. In the use position, the trigger is moveable between an unlocked position and a locked position. In the unlocked position, the cables are selectively tensionable to articulate the end effector assembly. In the locked position, the tensions on the cables are maintained to lock the end effector assembly in position. | 07-28-2011 |
20110196419 | Direct Pull Surgical Gripper - A surgical end effector includes a clevis and two jaws pivotally coupled to the clevis. A wire is coupled to each jaw and extended through a guide way in the other jaw and through an end of the clevis. The jaws may be opened and closed by pushing and pulling on the two cables. Pulling on each wire creates a closing force in both jaws. A rocking pin may be pivotally supported by the clevis and pivotally coupled to the jaws to constrain the jaws to have opposite motions. The clevis may be coupled to an elongate shaft and the wires extended through the shaft to provide an endoscopic instrument. A wire guide may support the wires in the shaft such that they are able to transmit a compressive force without buckling. The wires may carry electricity to the jaws for electrocautery. | 08-11-2011 |
20110213409 | MEDICAL INSTRUMENT - A medical instrument with a shaft, a handle positioned on the proximal end of the shaft, a tool positioned on the distal end of the shaft with two jaw members that can be displaced between an open and a closed position, and with an actuating element by which the handle and tool are in active connection with one another and where each jaw member of the tool consists of an inner cheek and an outer cheek, which are connected with one another on the distal end of each jaw member and are distanced from one another in the proximal direction, and at least one connecting brace is positioned between the inner cheek and the outer cheek. The medical instrument has jaw members, while preserving flexibility, have an increased dimensional stability, in particular with respect to torsion impact. The inner cheek and the outer cheek of each jaw member is configured differently with respect to the shape of their cross-section, with the inner cheek configured as wider than the outer cheek and with the inner cheek of each jaw member having rounded or stepped configuration. | 09-01-2011 |
20110257680 | Surgical Forceps Including Pulley Blade Reverser Mechanism - A forceps includes first and second shafts each having a jaw disposed at an end thereof. At least one jaw is moveable from an open to a closed position for grasping tissue therebetween. At least one jaw includes a blade slot defined therein and extending therealong for reciprocation of a blade therethrough. An actuation assembly is disposed within one of the shafts and is configured for translating the blade between a retracted and an extended position. The blade extends at least partially through the blade slot in the extended position. The actuation assembly includes an actuator extending from the shaft. A compliance member couples the actuator to a cable disposed within the shaft. A blade holder engages the cable and has the blade disposed at an end thereof. At least one pulley is coupled to the cable such that translating the actuator proximally translates the blade distally. | 10-20-2011 |
20110257681 | Surgical Forceps Including Geared Blade Reverser Mechanism - A forceps includes first and second shafts each having a jaw. At least one jaw is moveable from an open to a closed position. At least one jaw includes a blade slot for reciprocation of a blade therethrough. An actuation assembly disposed within one shaft is configured for translating the blade between a retracted and at least one extended position. The blade extends into the blade slot in the extended position(s). The actuation assembly includes an actuator extending from the shaft and engaging an actuator rack. A gear is coupled to the actuator rack and is rotatably disposed on a pin. A blade rack is coupled to the gear and has the blade disposed at an end thereof. A gear box is configured to house the gear and at least a portion of the actuator and blade racks. The actuator and blade racks are translatable through the gear box. | 10-20-2011 |
20110301637 | Apparatus for Performing an Electrosurgical Procedure - An endoscopic forceps is provided and includes a housing having a shaft. An end effector assembly operatively connects to a distal end of the shaft and has a pair of first and second jaw members. One of the first and second jaw members is movable relative to the other jaw member from an open position, to a clamping position. One of the first and second jaw members includes one or more cam slots defined therein and configured to receive a cam member that upon movement thereof rotates the movable jaw member from the open position to the clamping position. A resilient member is operably coupled to the jaw member that includes the one or more cam slots. The resilient member is configured to provide a camming force to the cam slot and to bias the first and second jaw members in the clamping position. | 12-08-2011 |
20110307005 | Selectable Handle Biasing - Devices and related methods are disclosed that generally relate to surgical devices provided for use in various surgical procedures. In some embodiments, the surgical devices can include a handle housing and an elongate shaft having opposed jaws disposed at a distal end thereof. The handle housing can have a handle portion and a trigger configured to pivot relative to the handle portion to open and close the opposed jaws. A biasing switch can generally be disposed in and/or on the handle housing and can be selectively movable between a first configuration in which the opposed jaws are biased to an open position, and a second configuration in which the opposed jaws are biased to a closed position. | 12-15-2011 |
20110313449 | Scissor Bias for Direct Pull Surgical Instrument - A surgical end effector includes a clevis having a first end to be supported by an elongated tube-like member and two jaws, each having a pivot portion and a working portion. The pivot portions are rotatably coupled to the clevis by two spaced apart pivots. The working portions may include a cutting edge that provide a shearing action as the first and second jaws rotate about their respective pivots. The pivot portion and the working portion of each jaw may be on opposite sides of a bisecting plane. A flexible cable or wire may be coupled to each jaw and extend through a guide way in the other jaw, between the first and second pivots, and through the first end of the clevis. One or more springs may urge the working portions together. A rocking pin pivotally supported by the clevis may constrain the jaws to have opposite motions. | 12-22-2011 |
20120022584 | Jaw Movement Mechanism and Method for a Surgical Tool - A jaw movement mechanism for surgical tools has improved mechanical efficiency and other advantages. The jaw movement mechanism controls the orientation and position of a movable jaw relative to a fixed jaw through a range of movement of the movable jaw. The jaws maintain a parallel orientation throughout a portion of the range of movement of the movable jaw. The jaws maintain an angular relationship throughout a portion of the range of movement of the movable jaw. | 01-26-2012 |
20120059408 | Collet Based Locking Mechanism - A surgical instrument includes a housing supporting first and second actuators, an elongated shaft extending distally from the housing, and an end effector supported by a distal portion of the elongated shaft. A tensile member extending through the elongated shaft is coupled to the first actuator and the end effector such that first actuator may be manipulated to induce motion of the end effector. A locking mechanism associated with the tensile member selectively impedes motion of the end effector. The locking mechanism includes a collet disposed about the tensile member and a collet clamp for receiving the collet. Receipt of the collet into the collet clamp induces radial compression of the collet to impede the motion of the tensile member therethrough. An actuation member extending through the elongated shaft induces insertion and withdrawal of the collet from the collet clamp. | 03-08-2012 |
20120078290 | LAPAROSCOPIC INSTRUMENT WITH ATTACHABLE END EFFECTOR - A laparoscopic surgical device comprises an elongate shaft defining a longitudinal axis, the shaft comprising a distal end and a proximal end. A plurality of arms project distally from the distal end of the elongate shaft, the arms each comprising a lateral notch. The arms are axially slideable relative the elongate shaft and are medially deflectable. An elongate pin is positioned medially relative the arms. The elongate pin is axially slideable relative the arms between a locked position preventing medial deflection of the arms and an unlocked position allowing medial deflection of the arms. A surgical end effector is selectively attachable in vivo and detachable in vivo to the mating feature of the arms, the surgical end effector comprising a torque transfer means and tissue contact apparatus that open and close in response to the axial movement of the two arms when attached to the surgical end effector. | 03-29-2012 |
20120078291 | LAPAROSCOPIC INSTRUMENT WITH ATTACHABLE END EFFECTOR - A laparoscopic surgical device comprises an elongate shaft defining a longitudinal axis, the shaft comprising a distal end and a proximal end. A plurality of arms project distally from the distal end of the elongate shaft, the arms each comprising a lateral notch. The arms are axially slideable relative the elongate shaft and are medially deflectable. An elongate pin is positioned medially relative the arms. The elongate pin is axially slideable relative the arms between a locked position preventing medial deflection of the arms and an unlocked position allowing medial deflection of the arms. A surgical end effector is selectively attachable in vivo and detachable in vivo to the mating feature of the arms, the surgical end effector comprising a torque transfer means and tissue contact apparatus that open and close in response to the axial movement of the two arms when attached to the surgical end effector. | 03-29-2012 |
20120078292 | SURGICAL FORCEPS - A surgical forceps includes: an insertion portion including, an internal space formed along a longitudinal axis, a distal end portion, and a proximal end portion; a grasping portion provided at the distal end portion of the insertion portion; an operation rod having one end and the other end and arranged in the internal space of the insertion portion, the one end being connected to the grasping portion; an operation portion provided at the proximal end portion of the insertion portion and connected to the other end of the operation rod, the operation portion being configured to operate a movement of the grasping portion; and a portion to be operated provided in the vicinity of the distal end portion of the insertion portion, and connected to the operation rod such that the operation rod is movable according to an operation by an external force. | 03-29-2012 |
20120109186 | ARTICULATING LAPAROSCOPIC SURGICAL INSTRUMENTS - An articulating laparoscopic instrument including a handle body, a shaft, an end effector, an operation mechanism, and an articulation mechanism. The end effector is connected to a shaft end. The operation mechanism includes a rod and an actuator. The rod is coupled to the end effector. Movement of the actuator relative to the handle body transfers a force onto the rod in a longitudinal direction to operate the end effector. The articulation mechanism includes a deflection assembly, first and second collar assemblies, first and second cables, a linkage, and an articulation actuator. The first and second collar assemblies are slidably disposed over the rod. The cables extend between the collar assemblies and the deflection assembly. Movement of the articulation actuator drives the first and second collar assemblies in opposite directions to cause a longitudinal deflection in the deflection assembly. | 05-03-2012 |
20120150216 | Distally Actuated Surgical Instrument - A surgical instrument for easy use of an operative tool. The surgical instrument includes a handle, a spring housing assembly, a distal assembly, a ball ring assembly, and the operative tool. The spring housing assembly is disposed at a distal end of and secured within the handle. The distal assembly is disposed against the spring housing assembly, and the ball ring assembly includes a plurality of balls. The distal assembly is positioned between the spring housing assembly and the distal assembly. The operative tool inserted through the distal assembly and connected to the spring housing assembly. | 06-14-2012 |
20120150217 | Proximally Actuated Surgical Instrument - A surgical instrument for easy use of an operative tool. The surgical instrument includes a handle, a bushing tubing assembly, a pressure plate assembly, a cap, a ball ring assembly, and the operative tool. The bushing tubing assembly is connected to a distal end of the handle, while the pressure plate assembly is positioned at a proximal end of the handle and extends to a clamp disposed within the handle. The cap is positioned across from a proximal end of the pressure plate assembly. The ball ring assembly includes a plurality of balls and positioned between the pressure plate assembly and the cap. The operative tool is inserted through the bushing tubing assembly and the guide tube and then connects to the cap. | 06-14-2012 |
20120184989 | Latch Mechanism for Surgical Instruments - A latch mechanism for a surgical instrument includes a lever moveable from an initial position to an actuated position for moving an end effector assembly from a first to a second state. A pin extends from the lever. A cantilever spring is operably engaged to the housing of the instrument. A pin track member is operably engaged to the cantilever spring at a free end thereof. The pin track member is configured to permit translation of the pin therealong between a first position corresponding to the initial position of the lever and a second position corresponding to the actuated position of the lever. The pin is configured to translate from the first to the second position along a first path and from the second position back to the first position along a second path and is configured to be releasably retained in the second position. | 07-19-2012 |
20120184990 | Trigger Lockout and Kickback Mechanism for Surgical Instruments - A forceps includes an end effector assembly including first and second jaw members, a blade, a lever member operably coupled to the end effector, a trigger member operably coupled to the blade and defining an actuation path therealong. A trigger safety member is pivotably coupled to the lever member such that, when the lever member is disposed in an initial position, the trigger safety member is disposed in a position blocking the trigger member. When the lever member is disposed in a compressed position, the trigger safety member is disposed in a position, wherein the trigger safety member is displaced from the actuation path to permit movement of the trigger member, wherein the safety member rotates relative to the lever member as a function of movement of the lever member to block/unblock the trigger member. | 07-19-2012 |
20120232580 | SURGICAL FORCEPS HAVING ENGAGEMENT IN A GROOVE - Surgical forceps are provided having an elongated shaft which at its distal end bears a forceps jaw having two jaw parts which are movable relative to one another, and at its proximal end bears an actuating handle which by means of a longitudinally displaceable actuating rod that passes through the shaft controls the relative motion of the jaw parts via the engagement of at least one cam on the forceps jaw or on the actuating rod in a groove which is inclined at an angle with respect to the direction of displacement of the actuating rod on the shaft or on the forceps jaw. The groove is provided, at least in one section, with an angle of inclination which is smaller than the angle of inclination up to which self-locking in the groove occurs. | 09-13-2012 |
20120239082 | TISSUE MANIPULATION DEVICES - Tissue manipulation and retraction devices. In various forms, the manipulation devices include a cannula that is insertable through the abdominal wall. A plurality of independently controllable manipulation members extend through the cannula and are attachable to various forms of surgical tools. The surgical tools may be manipulated and controlled by a surgeon from a position outside of the patient. | 09-20-2012 |
20130012984 | SURGICAL INSTRUMENT FOR GRASPING AN ELONGATED MEMBER - A surgical instrument for grasping an elongated member. The surgical instrument may include a handle and a hollow first shaft with a first end attached to the handle and an opposing second end. A second shaft may be positioned in a channel of the first shaft. The second shaft may include a proximal end attached to the handle and an opposing distal end. A gripping member may extend across the channel and is attached to the distal end of the second shaft. The gripping member has a pair of arms positioned on opposing sides of the channel that flare outward away from the distal end of the second shaft and terminate at tips. The gripping member is movable along the channel between a first position with the tips a first distance apart and a second position with the tips a smaller second distance apart. | 01-10-2013 |
20130018412 | SURGICAL IMPLANTATION INSTRUMENT - Surgical introducers aid surgeons in the implantation of medical devices. The introducer provides support and an even distribution of force for ease of insertion and prevention of damage to the medical device while protecting the tissue into which the device is implanted. A representative embodiment includes or consists of a locking device, a pair of forceps, a specially configured and/or angled head with a seat for the device to be implanted, and a gripping area. | 01-17-2013 |
20130030462 | LAPAROSCOPIC SURGICAL DEVICE - A laparoscopic surgical device comprising a pair of jaws ( | 01-31-2013 |
20130041402 | Surgical Forceps - A forceps includes first and second shaft members each having a jaw member disposed at a distal end thereof. The shaft members are moveable relative to one another between spaced-apart and approximated positions to move the jaw members between open and closed positions. A knife assembly is engaged within the second shaft member. The knife assembly includes an arm extending through a trough defined within the second shaft member and has a knife disposed at a distal end thereof. The arm is moveable between a first position, corresponding to a retracted position of the knife, wherein the arm defines an arched portion extending from the second shaft member, and a second position, wherein the arched portion defines a more linear configuration to elongated the arm distally to advance the knife between the jaw members to cut tissue grasped therebetween. | 02-14-2013 |
20130218198 | Knife Deployment Mechanisms for Surgical Forceps - A surgical instrument includes an end effector assembly having jaw members movable between spaced-apart, first approximated, and second approximated positions. A knife is selectively movable relative to the end effector assembly between a retracted position, a first extended position, and a second extended position. A trigger is selectively actuatable between a un-actuated position, a first actuated position, and a second actuated position for moving the knife between its respective positions. A control member prevents movement of the trigger when the jaw members are disposed in the spaced-apart position, permits movement of the trigger to the first actuated position but prevents movement beyond the first actuated position when the jaw members are disposed in the first approximated position, and permits movement of the trigger to the second actuated position but prevents movement beyond the second actuated position when the jaw members are disposed in the second approximated position. | 08-22-2013 |
20130218199 | APPARATUS FOR PERFORMING AN ELECTROSURGICAL PROCEDURE - An endoscopic forceps is provided and includes a housing having a shaft. An end effector assembly operatively connects to a distal end of the shaft and has a pair of first and second jaw members. One of the first and second jaw members is movable relative to the other jaw member from an open position, to a clamping position. One of the first and second jaw members includes one or more cam slots defined therein and configured to receive a cam member that upon movement thereof rotates the movable jaw member from the open position to the clamping position. A resilient member is operably coupled to the jaw member that includes the one or more cam slots. The resilient member is configured to provide a camming force to the cam slot and to bias the first and second jaw members in the clamping position. | 08-22-2013 |
20130226226 | APPARATUS FOR PERFORMING AN ELECTROSURGICAL PROCEDURE - A surgical instrument is provided and includes a housing having a shaft. An end effector assembly is operatively connected to a distal end of the shaft and has a pair of first and second jaw members one of which is movable with respect to the other. A heat activated drive assembly operably couples to an actuation mechanism that is operably associated with the forceps and configured to supply thermal energy to the heat activated drive assembly. The heat activated drive assembly operably coupled to movable jaw member and configured to impart movement of the movable jaw member when the actuation mechanism is activated. | 08-29-2013 |
20130238017 | APPARATUS FOR PERFORMING AN ELECTROSURGICAL PROCEDURE - A surgical instrument is provided and includes a housing having a shaft. An end effector assembly operatively connects to the shaft and has a pair of first and second jaw members. A jaw insert is operably associated with the first and second jaw members. The jaw insert includes one or more cam slots defined therein configured to receive a cam pin that upon movement thereof rotates the first and second jaw members from an open position to a clamping position and an opening defined therein configured to securely house a pivot pin that provides a point of pivot for the first and second jaw members. The jaw insert is manufactured from an insulative medium to dielectrically isolate the first and second jaw members. | 09-12-2013 |
20140088638 | Detachable End Effector with Lateral Lock - A surgical device comprises an elongate shaft comprising a distal end and a proximal end. An actuator is operably connected to the proximal end of the elongate shaft. The actuator may be a manual handle. An end effector is adapted for in vivo attachment to and detachment from the distal end of the elongate shaft. A loader is sized to receive the end effector. A lock extends laterally from the end effector and is operative to prevent the end effector from leaving the loader. The lock may move medially relative the end effector to allow the end effector to leave the loader. | 03-27-2014 |
20140094845 | APPARATUS FOR PERFORMING AN ELECTROSURGICAL PROCEDURE - A forceps is provided and includes a housing having a shaft. An end effector assembly operatively connects to a distal end of the shaft and includes a pair of first and second jaw members. One or both of the first and second jaw members is movable relative to the other jaw member from a clamping position to an open position. A resilient member operably couples to the first and second jaw members. The resilient member is configured to bias the first and second jaw members in the clamping position and provide a closure force on tissue disposed therebetween. | 04-03-2014 |
20140249574 | LAPAROSCOPIC INSTRUMENT AND RELATED SURGICAL METHOD - A medical instrument insertable through a cannula, the instrument comprising an elongate shaft; and an operative tip having a first jaw and a second jaw movable with respect to the first jaw. The operative tip disposed at a distal end of said elongate shaft and being disposed on said shaft for rotation relative to at least a distal end portion of said shaft about a longitudinal axis of said distal end portion. | 09-04-2014 |
20140277108 | SURGICAL INSTRUMENT FOR GRASPING MULTIPLE LOCATIONS AND METHODS OF USE - According to various implementations, a surgical instrument is provided that has two graspers for remotely grasping an organ or tissue in two different locations. The surgeon can manipulate the organ or tissue using the instrument with one hand while using his or her other hand to perform a surgical procedure. Using one instrument also reduces the number of incisions required. This instrument is especially useful in laproscopic procedures and other minimally invasive surgeries. | 09-18-2014 |
20140277109 | BENDABLE SUTURE NEEDLE WITH FREE VARYING ANGLE AND HOLDER THEREFOR - A suturing device including an outer bendable body and an inner bendable needle with a freely bendable angle includes a longitudinally extending outer hollow body having a point and a hollow passage and an inner needle portion or part disposed therein. The outer hollow body is constructed and dimensioned to receive a sized suture needle within the hollow passage with slightly close tolerances welded at its base to a point along the hollow body of the outer part and wherein the outer body includes a lower relatively stiff bendable material and an upper portion of relatively malleable material adjacent to and fixed to the lower portion. Further, the outer hollow body is more malleable as it becomes closer to the point. | 09-18-2014 |
20140336698 | SURGICAL INSTRUMENT WITH SPLIT JAW - An apparatus for operating on tissue includes an end effector having a first jaw and a second jaw that pivots relative to the first jaw from a closed position to an open position. The second jaw includes a first portion and a second portion that pivots relative to the first portion. The second portion is positioned adjacent to the first portion of the second jaw when the second jaw is in the closed position. The first and second portions of the second jaw pivot outwardly as the second jaw is pivoted from the closed position to the open position. | 11-13-2014 |
20150105820 | LAPAROSCOPIC FORCEPS ASSEMBLY - A laparoscopic forceps comprising a handpiece including a distal end portion; a tubular member protruding from the distal end portion of the handpiece, the tubular member having a distal end with a distal opening, a pair of jaws having legs that are disposed within the tubular member and partially protruding from the distal opening, the jaws and the tubular member being movable relative to each other; wherein each of the jaws has an arcuate section; an operable mechanism for creating relative motion between the jaws and the tubular member along a direction parallel to the longitudinal axis, and one or more spacing members extending across the distal opening of the tubular member and between the jaws; wherein the jaws are closable by the relative movement of the tubular member and the jaws towards each other so that the tubular member advances over the arcuate section of the jaws, and the jaws are openable by the relative movement of the tubular member and the jaws away from each other so that the one or more spacing members extend between the jaws and the jaws are moved apart. | 04-16-2015 |
20150105821 | LAPAROSCOPIC FORCEPS ASSEMBLY - A laparoscopic forceps comprising a handpiece including a distal end portion; a tubular member protruding from the distal end portion of the handpiece, the tubular member having a distal end, a pair of jaws having legs that are disposed within the tubular member and partially protruding from the distal end of the tubular member, the pair of jaws and the tubular member being movable relative to each other in a direction parallel to a longitudinal axis of the tubular member; wherein each of the pair of jaws has an arcuate section, and the pair of jaws are closable by advancing the tubular member over the arcuate section of the jaws; and an operable mechanism for creating relative motion between the pair of jaws and the tubular member along a direction parallel to the axis of the tubular member, wherein at the distal end portion of the tubular member there is a profile shape that is non-circular. | 04-16-2015 |
20150112382 | LAPAROSCOPIC SURGICAL INSTRUMENT - The invention relates to a completely mechanical laparoscopic surgical instrument which can be disposed of after a single use or which can be sterilised and re-used more than once. The instrument essentially comprises: a gripping zone provided with two gripping elements ( | 04-23-2015 |
20150133993 | LATCH MECHANISM FOR SURGICAL INSTRUMENTS - A latch mechanism for a surgical instrument includes a lever moveable from an initial position to an actuated position for moving an end effector assembly from a first to a second state. A pin extends from the lever. A cantilever spring is operably engaged to the housing of the instrument. A pin track member is operably engaged to the cantilever spring at a free end thereof. The pin track member is configured to permit translation of the pin therealong between a first position corresponding to the initial position of the lever and a second position corresponding to the actuated position of the lever. The pin is configured to translate from the first to the second position along a first path and from the second position back to the first position along a second path and is configured to be releasably retained in the second position. | 05-14-2015 |
20150313621 | FLAT OBJECT GRASPER - A rotatable jaw device for use with an endoscope. The device includes a fork, and two jaws pivotally mounted to the fork. The jaws are movable between a predetermined closed position and a predetermined open position. At least one jaw has at least one protrusion on a surface of the jaw. The at least one protrusion prohibits movement of the two jaws in the opening direction beyond the predetermined open position. One jaw may have an elongated center void defined by twin jaw extensions, and the other jaw may rotate within the elongated center void when the two jaws move toward the predetermined closed position. | 11-05-2015 |
20150359551 | APPARATUS FOR PERFORMING AN ELECTROSURGICAL PROCEDURE - An endoscopic forceps is provided and includes a housing having a shaft. An end effector assembly operatively connects to a distal end of the shaft and has a pair of first and second jaw members. One of the first and second jaw members is movable relative to the other jaw member from an open position, to a clamping position. One of the first and second jaw members includes one or more cam slots defined therein and configured to receive a cam member that upon movement thereof rotates the movable jaw member from the open position to the clamping position. A resilient member is operably coupled to the jaw member that includes the one or more cam slots. The resilient member is configured to provide a camming force to the cam slot and to bias the first and second jaw members in the clamping position. | 12-17-2015 |
20160038169 | LATCH MECHANISM FOR SURGICAL INSTRUMENTS - A surgical instrument includes a pair of jaw members moveable between a spaced-apart and an approximated position. A drive bar is translatable between a distal and a proximal position for moving the jaw members between the spaced-apart and approximated positions. A lever is moveable between an initial position and an actuated position for translating the drive bar between the distal and proximal positions. A sleeve disposed about the drive bar includes an annular track having a substantially radial segment(s) and a substantially longitudinal segment(s). A collar interdisposed between the sleeve and the drive bar includes a stop member(s) extending radially outwardly therefrom. The stop member(s) is engaged within the track and is translatable from a first position, wherein the stop member is positioned within the longitudinal segment, to a second position, wherein the stop member is engaged within the radial segment, to lock the lever in the actuated position. | 02-11-2016 |
20160051274 | ROLLING JOINT JAW MECHANISM - According to an aspect, a device may include a shaft, a tool portion including a first arm and a second arm, and a split rolling joint including a first curved portion and a second curved portion. The second curved portion may be coupled to the shaft. The first curved portion may include a first split portion and a second split portion. The first split portion may be coupled to the first arm. The second split portion may be coupled to the second arm. At least one of the first split portion and the second split portion may be configured to roll with respect to the second curved portion such that at least one of the first arm and the second arm can move towards or away from each other. | 02-25-2016 |
20160089175 | SURGICAL DEVICES HAVING POWER-ASSISTED JAW CLOSURE AND METHODS FOR COMPRESSING AND SENSING TISSUE - Surgical devices are provided having power-assisted or fully powered jaw closure. The devices herein generally include a handle portion, an elongate shaft, and an effector having first and second jaws configured to engage tissue. A motor and one or more compression springs can be operatively coupled, and activation of the motor can compress the spring(s) to reduce the amount of user supplied force to compress tissue between the jaws. In some embodiments, the devices can be configured to regulate an amount of compression applied by the jaws prior to, during, and/or after cutting of the tissue to promote hemostasis. For example, the devices can include sensors, processors, and/or other components that analyze data indicative of tissue type and tissue load. Based on this feedback, the device can automatically adjust the amount of compression or energy applied to the tissue to seal the tissue. | 03-31-2016 |
20160100902 | Surgical Device with Overload Mechanism - Methods and devices are provided for preventing surgical devices used in laparoscopic procedures including opposed jaws and an overload mechanism from overloading the opposed jaws of the device. In one embodiment a surgical device, includes a handle and an elongate shaft extending distally therefrom with opposed jaws coupled to a distal end thereof. The surgical device can include a trigger pivotally movable about a first pivot axis during a first range of motion from an open position toward a closed position, to cause the opposed jaws of the end effector to move from an open position to a partially closed position. The trigger can further be pivotally movable about a second pivot axis during a second range of motion from the partially closed position to the fully closed position, without causing corresponding movement of the opposed jaws from the open position to the closed position. | 04-14-2016 |
20160135830 | Medical Instrument - A medical instrument with a hollow shaft and at the distal end a tool actuated via a spring-loaded pull cable, wherein the tool is rotatable about the longitudinal axis of the shaft and is mounted such that it can be angled with respect to the longitudinal axis of the shaft. Actuation of the pull cable and rotation and angled positioning of the tool take place via separate drives, which are arranged on a handle. An anti-twist means protects the pull cable against torsion. | 05-19-2016 |
20160157875 | GASTROINTESTINAL DOUBLE-GRASP TISSUE FORCEPS - A gastrointestinal double-grasp surgical tissue forceps has bifurcated jaws. By gripping a piece of tissue on two sides, the jaw arms fix the tissue plate between them to enable an easier and more accurate puncture, cut, needle insertion/exit or similar procedure. By contrast, when using existing tissue forceps, forces induced by such procedures can turn the tissue on a single grasp-made-pivot. By eliminating the summative effect of these turns, although they are minimal and conventionally compensated for, the gastrointestinal double-grasp forceps is expected to improve the overall speed and control of surgeons and the quality of their manual anastomoses during gastrointestinal operations. | 06-09-2016 |