Class / Patent application number | Description | Number of patent applications / Date published |
606083000 | Rongeur, resector, or nipper | 71 |
20080306483 | RETROGRADE CUTTING INSTRUMENT - An instrument for retrograde cutting of sockets or tunnels in bone for arthroscopic tenodesis. A retrograde cutter is used to form a recipient site socket from the inside out, i.e., using a retrograde technique, with minimal incisions of distal cortices and reduced intraarticular bone fragmentation of tunnel rims. The retrograde cutter is provided with a cutting blade that is configured to engage the shaft of the instrument and to lock onto the shaft. | 12-11-2008 |
20090062805 | RONGEUR - A rongeur ( | 03-05-2009 |
20090082773 | METHOD AND APPARATUS FOR WIREPLASTY BONE RESECTION - A cutting tool to be utilized in the resection or removal of bone tissue from patients includes a handle that tensions a wire or cable-like cutting member with a small diameter between at least two features on the handle to present a thin cutting profile. The design of the cutting tool includes features that protect against soft tissue damage and minimize the incision size necessary to utilize the tool. Some embodiments feature details of the cutting tool that interface with a surgical cutting guide system. Other embodiments describe a cutting tool with a selectively changeable length of the cutting profile of the wire cutting member. In one embodiment, the wire cutting member of the cutting tool is energized by mechanical energy in the form of a unidirectional rotation of the cutting member, a mechanical vibration of the cutting member, or an oscillating movement of the wire cutting member. | 03-26-2009 |
20090270864 | CUTTING GUIDE ASSEMBLY - A cutting guide assembly is provided for resecting a head of a bone. The cutting guide assembly includes an elongate support rod and at least one cutting plate couplable to the support rod, the at least one cutting surface defining a cutting surface arranged such that when coupled to the support rod, the bone can be cut to form a resection surface by aligning a cutting tool with the cutting surface. The support rod is configured to be partially disposed in and rotatable within a cavity extending into the head of the bone, defines a longitudinal axis and including a reference formation. | 10-29-2009 |
20090312763 | Facet joint implants and delivery tools - A spinal joint distraction system is disclosed and may include a delivery device, a driver assembly, and an internal actuator, where the driver assembly is adapted to be hold an implant and be sleevably inserted into the delivery device and the internal actuator is adapted to advance an implant distractor to distract the implant, the system also including an implant, a chisel, an injector, a gripping tool, and a dilator set. Several embodiments of an implant are disclosed as well a method of placing an implant. | 12-17-2009 |
20100160916 | CUTTTING DEVICE - A cutting device ( | 06-24-2010 |
20100179557 | Adjustable Powered Rongeur - The invention relates to a powered medical instrument having an adaptable deburring bit and independent nerve sensors that facilitate positioning of the instrument to a proximate surgery site. The medical instrument having a hand piece on a proximal end of a shaft and a hollow tip portion on a distal end of the shaft. The hand piece includes a handgrip and a squeezable trigger portion, whereby the trigger portion is independently compressible of the handgrip. The trigger portion controlling a rotatable surgical tool bit, which is housed in the tip portion and powered by a connecting drive system. The medical instrument further includes a safety apparatus provided on the grip portion, capable of locking the instrument and a monitoring system disposed on the tip portion, in order to identify proximity of nerve endings. | 07-15-2010 |
20100191241 | Vertebral joint implants and delivery tools - A spinal joint distraction system for treating a facet joint including articular surfaces having a contour is disclosed and may include a delivery device including a generally tubular structure adapted to engage a facet joint, an implant adapted to be delivered through the delivery device and into the facet joint, the implant comprising two members arranged in opposed position, and an implant distractor comprising a generally elongate member adapted to advance between the two members of the implant causing separation of the members and distraction of the facet joint, wherein the implant is adapted to conform to the shape of the implant distractor and/or the articular surfaces of the facet upon being delivered to the facet joint. Several embodiments of a system, several embodiments of an implant, and several methods are disclosed including a method for interbody fusion. | 07-29-2010 |
20100198222 | Rongeur - A rongeur has a fixed shank and a moveable crossbar. The crossbar is connected to and axially aligned with the fixed shank. The crossbar has a distal end with a cutting portion located therein. A port is connected to one of the fixed shank and the moveable crossbar. An access channel is connected to the port and provides improved flushing, cleaning, sterilization, drying and/or lubricating capabilities. | 08-05-2010 |
20100217268 | INTERVERTEBRAL MILLING INSTRUMENT - An intervertebral milling instrument for removing calcified fibrous cartilage (CFC) from adjacent vertebrae during spinal fusion or spacer implantation surgery. The milling instrument includes a grinding wheel carried within a guide housing sized to fit closely into the intervertebral space, and to expose the grinding wheel on opposite sides thereof for controlled removal of CFC layers from adjacent cortical end plates. The grinding wheel is rotatably driven as by attachment to a surgical drill, preferably to include saline supply to and suction removal from the grinding site. The controlled removal of CFC layers is limited to about 100 to about 250 microns, thereby avoiding exposing the cortical end plates without excessive bone removal. The instrument is conveniently provided in a kit having multiple guide housings and associated grinding wheels of different sizes to fit into different intervertebral spaces. | 08-26-2010 |
20100241125 | Oscillating bone chipper - Improved method for removing large amount of bone and articulate surface including cartilage comprising a bone chipper, which can be adapted for usage with any large articular surface or bony structure through a small incision using minimally invasive surgical approach. The inventive device includes an oscillating chipper tip having a series of metallic blades with sharp cutting edges vertically situated and attached to a metallic circular platform. Said platform is situated at the distal end of shank blade. The circular platform and cutting blade will oscillate horizontally driven by the reciprocating eccentric cam with his attached proximally to a reciprocating central shaft. Each of the vertical blades has two sharp vertical cutting edges. The blade shank contains a suction channel, which allows of the removal of bone particles and tissue debris generated by the cutting process. The electromagnetic driver comprises three or four electromagnetic coils placed in a collinear fashion and in series. The coils being separated by magnetic Neodymium wafers firmly attached to the reciprocating central shaft which actually move back and forth driven by the electromagnetic coils as they receive alternating current from a frequency modulator external power supply unit. A railing in the form of an inverted T located at the bottom of the electromagnet driver and used to guide the movement of the driver when said guide slides into corresponding T grooves located on the femoral and tibial templates which are positioned adjacent to the tibial and femoral bones and firmly secured by two or more large guide wires inserted through the templates and into the bone. | 09-23-2010 |
20110022052 | Method and Devices for Force-Limiting Trigger Mechanism - An actuating mechanism for use with a surgical instrument having a handle, an elongate body member, and a tool head. The actuating mechanism comprises a cable engagement arm pivotably attached at a first arm end. The cable engagement arm has a lever engagement portion at a second arm end. The actuating mechanism also comprises a cable engagement mechanism connecting a cable to the cable engagement arm and an actuation lever having a lever body. The actuating mechanism also comprises a torsion control mechanism having a piston slidably disposed within the piston chamber and a biasing mechanism configured for biasing the piston toward the chamber opening. The piston, the biasing mechanism, and the lever engagement portion cooperate to resist rotation of the actuation lever when a rotational force is applied to the actuation lever, but allow such rotation if the rotational force produces a moment that exceeds a predetermined limit. | 01-27-2011 |
20110028979 | Spinal Implant Clearing Gouge - A surgical gouge for clearing bone and soft tissue from around a previously implanted rod during a surgical operation. The gouge includes an elongate handle with a distally positioned cutting member at one end. The cutting member has a rod capture arm with an arcuate surface generally conforming to the cylindrical shape of the rod. The cutting member further having a curved leading cutting blade extending over and about the rod capture arm. The curved leading cutting blade configured so as to create a trough between the inside surface of the curved leading cutting blade and the rod capture arm to capture any cut bone and/or soft tissue from around the rod as the gouge is rotated about the rod. The curved cutting blade having a distal end sharpened at its distal edge to enable the user to cut away bone and soft tissue from around the rod. It may also be desirable for the distal end to have sharpened side edges to assist in cutting away the bone and soft tissue that have built up about the rod. | 02-03-2011 |
20110092976 | Kit of alignable tools for preparing an intervertebral site for implanting a prosthetic intervertebral disc - We describe various alignable tools, in particular, trials and chisels, that may be used in preparing an intervertebral site in a spine, the site being suitable for placement of a prosthetic intervertebral disc as a replacement for a natural disc in that spine. We also describe methods of using those tools. | 04-21-2011 |
20110106090 | DUAL-CUTTING BONE MILL - A tissue processing device, including a housing defining a first passage through at least a portion thereof, the first passage defining a longitudinal axis; a first processing member rotatably coupled to the housing and extending across at least a portion of the first passage; and a second processing member rotatably coupled to the housing and extending across at least a portion of the first passage, the second processing member being substantially parallel to the first processing member, the second member being offset from the first processing member in a first direction substantially parallel to the longitudinal axis and in a second direction substantially transverse to the longitudinal axis. | 05-05-2011 |
20110172671 | Orthopedic/Spine Bone Mill - A orthopedic/spine bone mill comprising a vessel and a rotatable grinding tool to produce ground autologous and or allograft bone particles for surgical bone reconstruction use, wherein the vessel includes a wall defining a circular cylindrical chamber having a concentric axis. The vessel further includes generally concave or a cup shaped bottom wall which corresponds to the shape of the cutting blade and a lid adapted to be removably connected to the vessel. The lid includes an opening coincident with the axis. The grinding tool includes an elongated shaft extending through the opening in the Jid along the axis with a cutting blade mounted to the shaft within the chamber whereby the cutting blade can be rotated by motive device, such as a drill find in the operating room, engaging the shaft exterior of the vessel to cut bone, placed in the vessel, into said bone particles. | 07-14-2011 |
20110190773 | SURGICAL RONGEUR - An improved rongeur for cutting bone or cartilage comprising two shaft members capable of reciprocating motion relative to each other wherein one shaft member terminates in a foot plate and the other shaft member comprises a combined cutting element and storage member is disclosed. The combined cutting element and storage member has a cutting edge at its distal end and a storage chamber proximate the cutting edge for collecting and storing cut pieces of bone or cartilage in an amount greater than the maximum bone or cartilage capable of being cut in a single full cut. The combined cutting element and storage member is truly disposable, rather than merely replaceable and requires the use of no tools or special assembly. The rongeur may be manually activated or activated by a solenoid and powered by a battery. | 08-04-2011 |
20110213369 | KERRISON RONGEURS - A Kerrison rongeur employing a shearing/cutting or grasping mechanism, and suited for specific cutting and sampling bone, cartilage and soft tissue. A slideable upper member has on its advancing face a cutting element that moves past an opposing cutting element on a stationary footplate to produce a shearing action of tissue positioned within the jaws. The cutting element of the slideable member may move past the stationary member on the outside in an overbite situation or on the inside in an underbite situation. A hybrid over/underbite jaw is also contemplated along with a guillotine cutting element and a textured grasping element. In operation, the tissue is placed between the jaw and footplate, and the former is advanced towards the latter to cut and/or grasp and remove for a surgical site. | 09-01-2011 |
20110213370 | SURGICAL CHISEL - A chisel includes a hammered portion to be hammered which is provided so as to project from a middle or an end of a handle and extend to pass through a portion on an extended line in the direction opposite to the direction of the blade. Even if the chisel is hammered in a state where a tip of the blade thereof is not inserted into a bone, the chisel easily advances in the direction of the blade, thereby reducing a possibility that the blade slides on a surface of the bone. | 09-01-2011 |
20110245834 | SURGICAL PUNCH - A surgical punch has a cartridge for collecting the resected chips cut off in successive punch cuts. The cartridge is a replaceable disposable commodity. The cartridge consists of a casing and a tooth rail which is guided longitudinally displaceable relative to the casing. Once the cartridge is inserted, the casing is fixed on the upper part of the punch, while the tooth rail is fixed on the lower part of the punch. A transport serration is formed in the casing. The tooth rail has a retaining serration. During the opening and closing movement of the punch, the transport serration and the retaining serration interact as transport mechanism which displaces the cut off resected chips in the cartridge in the proximal direction. | 10-06-2011 |
20110288553 | METHOD AND DEVICES FOR TREATING SPINAL STENOSIS - Systems and methods for treating spinal stenosis include endoscopic access devices and bone removal devices used to perform a foraminotomy or other bone removal procedures. Some of the bone removal devices include expandable members which may be used to control the forced exerted and/or position of the bone removal mechanism, and to protect neurovascular structures and other soft tissue structures from the bone removal mechanism. Other bone removal devices include a trephine with a viewing window and a guide wire lumen used to position the trephine at a target tissue site using an anchored wire. The viewing window may be used to monitor structures or tissues adjacent to the target tissue site. | 11-24-2011 |
20110288554 | Disposable Cylindrical Cutter - A single use bone cutter comprised of two concentric cylinders and a series of insert blades or cutter disc is described. The cutter blades or cutter disc is preferably positioned at the distal end of the cutter. The bone cutter also comprises a guide rod that aids in the line of sight when using the cutter device. | 11-24-2011 |
20110306980 | Disposable Surgical Cutter For Shaping The Head Of A Femur - A single use bone cutter comprised of a plate with a plurality of insert blade enclosures is described. The insert blade enclosures are arranged in a spiral pattern about the plate and are further positioned at varying height intervals through the thickness of the plate. The bone cutter provides a means whereby the insert blades can be easily positioned within the plurality of blade enclosures to provide a wide array of cutting diameters. | 12-15-2011 |
20110306981 | UNITARY ALVEOLAR BONE CHISEL AND SPREADER OSTEOTOME FOR A DENTAL IMPLANT - Provided is an integrated alveolar bone dilating apparatus for dental implant. The apparatus includes a grip, a stopper, and a dilating part. The grip has a cylindrical shape. The stopper is disposed under the grip and has a diameter greater than a diameter of the grip. The dilating part is disposed under the stopper. Here, the dilating part includes a dilator reduced in diameter toward a lower portion thereof and having an inverted conic shape with a sharp tip, and two blades disposed on both sides of the dilator and being sharp toward the outside. | 12-15-2011 |
20120010622 | SURGICAL INSTRUMENT - A surgical instrument, in particular a laminectomy rongeur or a conchotome, with a shaft and with a one-piece sliding part, longitudinally displaceable relative to the shaft, with which for longitudinal displacement a grip part is associated which is pivotable about a pivot axis, wherein the sliding part is able to be transferred from a working position, in which the sliding part is guided longitudinally displaceably on the shaft in a guide, into a cleaning position, in which the sliding part is freed from the guide and is pivotable relative the shaft about a rotation axis oriented perpendicularly to the longitudinal extent of the shaft. The rotation axis is aligned perpendicularly to the pivot axis of the pivotable grip part. | 01-12-2012 |
20120065639 | TISSUE MODIFICATION DEVICES - Described herein are elongate devices for modifying tissue having a plurality of flexibly connected rungs or links, and methods of using them, including methods of using them to decompress stenotic spinal tissue. These devices may be included as part of a system for modifying tissue. In general, these devices include a plurality of blades positioned on (or formed from) rungs that are flexibly connected. The rungs are typically rigid, somewhat flat and wider than they are long (e.g., rectangular). The rungs may be arranged, ladder like, and may be connected by a flexible connector substrate or between two or more cables. Different sized rungs may be used. The blades (on the rungs) may be arranged in a staggered arrangement. A tissue-collection or tissue capture element may be used to collect the cut or modified tissue. | 03-15-2012 |
20120123419 | ORTHOPEDIC REAMER FOR BONE PREPARATION, PARTICULARLY GLENOID PREPARATION - Embodiments of the invention include an orthopedic milling machine for preparing a glenoid bone. The milling machine uses a hub and a sleeve. The hub includes reliefs arranged to cut or mill the bone and the sleeve couples to the hub to transfer rotational motion to the hub. The hub has an axial bore sized to receive an orthopedic guide pin. The hub also has a lateral passage slot that allows the hub to move laterally towards the guide pin in order to place the guide pin within the axial bore. | 05-17-2012 |
20120136358 | METHOD AND APPARATUS FOR SPINAL OSTEOLIGAMENTOUS RESECTION - A device for osteoligamentous resection comprising a resector having a shaft with a resecting tip at its distal end, and a retractor at least partially surrounding the resector, and at least part of the retractor being moveable relative to the resector. | 05-31-2012 |
20130006249 | Bone Removal Instrument - Improved spinal instruments are provided. In particular, the present application relates to an improved rongeur that allows for multiple bites of bone to be performed in a patient before removing the rongeur from the patient. The rongeur includes a lower shaft and an upper shaft slidable relative to the lower shaft. The lower shaft and upper shaft form a jaw mechanism that can take multiple bites of bone, which can be deposited in a storage cavity formed in the upper shaft. To assist in removing the bone from within the storage cavity, an internal plunger mechanism can be provided that is actuated by a finger hold. In addition, at least portions of the upper shaft are detachable from the lower shaft such that the upper shaft can be thoroughly cleaned and re-used if desired. | 01-03-2013 |
20130041378 | RONGEUR WITH VENTED T-SLIDE AND/OR INCREASED STRENGTH - A rongeur comprising a bottom shaft comprising a proximal end, a distal end terminating in a footplate, a substantially flat upper surface extending along the bottom shaft, and a groove characterized by a wider proximal recess and a narrower distal recess comprising an undercut; a top shaft comprising a proximal end, a distal end, a substantially flat bottom surface extending along the top shaft, and a tongue characterized by a crossbar connected to the flat bottom surface by a vertical riser; wherein the flat bottom surface rests on the flat upper surface and the tongue is slidably disposed in the groove so that when the top shaft is moved distally relative to the bottom shaft, the tongue slides from the proximal recess into the distal recess; and further wherein the top shaft comprises a passageway for admitting air into the portion of the proximal recess vacated by the tongue. | 02-14-2013 |
20130041379 | Surgical Rongeur Release Mechanism - A rongeur including a shaft having a foot plate, a cutting slide, a breach extending between the foot plate and the cutting slide and a handle assembly for moving the cutting slide along the shaft. The cutting slide includes a pair of tracking arms arranged about a distal end of the cutting slide and a third tracking arm arranged about the proximal end thereof. The tracking arms are received within corresponding tracking slots in the shaft when the rongeur is in a closed position. The tracking arms are disengaged from the tracking slots by rotating the cutting slide about a pivot axis that extends parallel to the length of the shaft thereby placing the rongeur in an open position. To prevent inadvertent disengagement of the tracking arms from the tracking slots, a trigger assembly is provided which arrests proximal movement of the cutting slide. | 02-14-2013 |
20130053852 | TISSUE REMOVAL DEVICE AND METHOD - A tissue removal device for removing hard and/or soft tissue is disclosed. The device can have an elongated rigid shaft attached to an articulating broach. The device can be inserted through a transosseous delivery channel formed in a bone. The broach can articulate after passing through the transosseous delivery channel. | 02-28-2013 |
20130053853 | DEVICES, METHODS AND SYSTEMS FOR NEURAL LOCALIZATION - Described herein are tissue manipulation devices having a tight bipole network. In particular, described herein are smart tools such as rongeurs configured to sense the presence of a nerve or portion of nerve. Tissue may be cut (or otherwise manipulated) by using a tool having a tight bipolar network to sense when a nerve or portion of a nerve is in the tool prior to cutting. | 02-28-2013 |
20130150861 | RONGEUR WITH DETACHABLE TIPS - A rongeur has an elongated shank having a distal end and a proximal end. An elongated crossbar, which moves between a retracted position and a tissue capturing position position, has a distal end and a proximal end and reciprocates axially with respect to the shank. A first tip is selectively connected to the shank. The first tip has a proximal end and a distal end. The proximal end has a reduced diameter post. In the selectively connected position, the reduced diameter post of the first tip is received in a bore of the shank. A second tip is selectively connected to the crossbar. The second tip has a proximal end and a distal end. The proximal end has a reduced diameter post. In the selectively connected position, the reduced diameter post of the second tip is received in a bore of the crossbar. | 06-13-2013 |
20130172895 | DEVICES, SYSTEMS AND METHODS FOR TISSUE MODIFICATION - Devices and methods of modifying tissue for low profile and ultra profile rongeur devices to treat spinal tissue. These devices may include a curved or curveable distal region; the cutting member may be configured to operate in the curved region. Also described herein are tissue modification devices that may be flexible or bendable for positioning in the tissue (including the spinal region) but can be made rigid once in position, or otherwise fixed in place to allow leverage when modifying the tissue. | 07-04-2013 |
20130184711 | Sonotrode - A sonotrode for an ultrasonic surgical instrument has a shaft and an instrument head at a distal end of the shaft. The instrument head is equipped with a cutting structure for the treatment of bones. The shaft has a helical cut-out. The helical cut-out is provided with a transversely running shoulder. A method produces a sonotrode and a surgical instrument having such a sonotrode. As a result of the shoulder in the helical cut-out, the torsional vibration of the instrument head is amplified such that bone material can be ablated in a particularly effective fashion. | 07-18-2013 |
20130197525 | METHOD AND APPARATUS FOR REMOVING MATERIAL FROM AN INTERVERTEBRAL DISC SPACE AND PREPARING END PLATES - Instrument and method for removing material from an intervertebral disc. The instrument includes outer and inner tubular members. The outer tubular member defines a passage and a cutting window. The inner tubular member is coaxially disposed within the passage, and defines a central lumen and a cutting tip. The cutting tip forms an open mouth having a plurality of teeth. Upon assembly, the cutting tip is exposed within the cutting window combining to define a shaving head. A manual decorticating implement is coupled to the outer tubular member and defining a scraping surface. A powered handpiece is coupled to the inner tubular member, and the shaving head is inserted into an intervertebral disc and positioned such that the cutting tip contacts targeted material (e.g., nucleus, annulus and/or end plate). The handpiece is activated to rotate the cutting tip relative to the cutting window. Contacted material is sheared between an edge of the cutting window and the teeth of the cutting tip. The manual decorticating implement is used to remove intervertebral disc material from an end plate. | 08-01-2013 |
20130211408 | Curved Arthroscopic Burr and Measurement Instrumentation - A tissue resection device includes a housing, a drive shaft, and a set of cutting inserts arranged in sequence. The cutting inserts are connected in the sequence by off-axis torque couplings so that each cutting insert may lie at an angle to an adjacent cutting insert. Each cutting insert includes at least one cutting edge, and the cutting edges in sequence form a cutting profile which may include a combination of straight and curved sections. The housing may be curved. Rotation of the drive shaft rotates the set of cutting inserts to form a cutting burr. | 08-15-2013 |
20130231670 | Arthroscopic Resection Methods - The present disclosure relates to resection devices and methods. The resection device includes an outer tubular member; and an inner tubular member disposed within the outer tubular member, the inner tubular member including a burr having a body with flutes extending along a length of the body, the flutes including parabolic wave patterns located along surface edges of the flutes. In an embodiment, the parabolic wave patterns extend along entire lengths of the flutes. Other resection devices and methods are also disclosed. | 09-05-2013 |
20130245630 | SURGICAL INSTRUMENT - The invention relates to a surgical instrument comprising a handling part and a tool part that encompasses at least one movably mounted tool which is actuated via a force-transmitting and/or actuating mechanism. The force-transmitting and/or actuating mechanism is operated from the handling part and is provided with a fluid-operated drive unit. With the drive unit in a first driving position the movably mounted tool is subjected to a first actuating force in an actuating direction and in at least a second driving position is subjected to at least a second actuating force in the actuating direction. | 09-19-2013 |
20130296868 | ROBOTIC ARTHROPLASTY SYSTEM - Embodiments include a robotic mechanism that may be utilized to position prosthetic implants in a patient's body. During joint replacement surgery and other surgical procedures, prosthetic implants may be placed in a patient's body. The robotic mechanism may be utilized to control movement of a cutting tool during resection of bone in a patient's body. The robotic mechanism includes a programmable computer which is connected with the force transmitting member by a motor. A force measurement assembly is connected with the force transmitting member and the computer. The output from the force measurement assembly is indicative of a resistance encountered by the force transmitting member. A position sensor is connected with the force transmitting member and the computer. The position sensor has an output indicative of the position of the force transmitting member. | 11-07-2013 |
20130296869 | SPOT FACING TROCHLEAR GROOVE - The present invention relates to systems and methods for preparing the trochlear groove of a patient's femur to receive a prosthesis thereon. In the system, a combination drill-and-alignment guide includes at least a proximal and intermediate section, and preferably also includes a distal section. Guide holes for receiving guide pins therein are located in the proximal and distal sections of the guide. After the guide is positioned using at least one of several visual and/or tactile guide references in the system, the guides pins are placed through the guide holes of the guide and into bone. The guide may then be removed and replaced by cannulated reamers that are rotated and used to resect a predetermined amount of bone around the guide pins. A prosthesis having at least a portion of an outer surface that substantially matches the trochlear groove of the patient in a pre-degenerated state is then implanted on the resected bone. | 11-07-2013 |
20130325015 | Surgical sliding shaft instrument - A surgical sliding shaft instrument is provided. The instrument can include a shaft part, a slide part, which is guided so as to be movable in a longitudinal direction on the shaft part, working elements disposed on distal ends of the shaft part and the slide part, and a proximal handle for reciprocal movement between a rest position and an operative position. The shaft part and the slide part can abut one another with sliding surfaces. The slide part can be interrupted by first rinsing slots. The shaft part can be interrupted by second rinsing slots. The first rinsing slots of the slide part and the second rinsing slots of the shaft part can be constructed and disposed so that in the rest position of the instrument the first rinsing slots and the second rinsing slots adjoin one another in the longitudinal direction alternately without overlapping one another. | 12-05-2013 |
20140005671 | Percutaneous Tissue Excision Devices And Methods | 01-02-2014 |
20140025079 | DRIVING ASSEMBLY FOR A CUTTING TOOL OF THE SHAVER TYPE - The nucleotomy device makes it possible to produce a nuclear space Es in an intervertebral disc Di using a transosseous approach previously pierced in the body of a vertebra Va. The device includes a tool holder ( | 01-23-2014 |
20140039507 | INSTRUMENTATION FOR KNEE RESECTION - A system for performing a resection of a selected portion of an anatomy with a resection instrument. The system includes a first member, a first movement defining portion defined by the first member, a second member, and a second movement defining portion of the second member. The first member is fixable to the selected portion of the anatomy. The second member is configured to cooperate with the first member. The first movement defining portion and the second movement defining portion are operable to allow the second member to be moveable relative to the first member from a first position to a second position. The resection instrument is positionable relative to the second member in the first position and in the second position to form a selected resection of the selected portion of the anatomy. | 02-06-2014 |
20140066934 | Bi-Cruciate Knee System - A tibial tray configured for use in a bi-cruciate retaining knee procedure can include a medial portion, a lateral portion, and an anterior connecting portion. The medial portion can have a medial superior bearing opposing surface, a medial inferior bone opposing surface, and a medial connecting surface. The lateral portion can have a lateral superior bearing opposing surface, a lateral inferior bone opposing surface, and a lateral connecting surface. The anterior connecting portion can connect the medial and lateral portions and cooperate with the medial and lateral portions to define a slot therebetween. The medial and lateral connecting surfaces can be formed on converging planes from respective inferior surfaces to superior surfaces of the tibial tray. | 03-06-2014 |
20140088601 | METHODS AND APPARATUS FOR PREPARING A PATIENT'S FEMUR FOR PATELLOFEMORAL KNEE ARTHROPLASTY - Methods and apparatus provide for modifying a patient's femur to receive a patellofemoral prosthesis, including: a distal punch, an anterior punch and a trochlear punch which are used in well defined orientations to remove material from the femur to accommodate complex geometries of a patellofemoral prosthesis; and optionally a guide operating to engage a distal end of the femur, the guide including a distal slot, an anterior slot and a transverse slot, which ensure that the punches achieve the desired orientations. | 03-27-2014 |
20140135774 | INTEGRATED SYSTEM FOR CLEANING BONE STOCK AND TRANSFERRING THE BONE STOCK TO A MILL IN WHICH THE BONE STOCK IS MILLED TO FORM BONE CHIPS - A system for cleaning and milling bone to form bone chips. The system includes a shell into which bone stock is introduced. Internal to the shell is a cleaning element that removes soft tissue and other material surrounding the bone stock. The cleaned bone stock is transferred through an opening in the shell to a mill unit. The mill unit has a milling element against which the bone is disposed. The milling element, when actuated coverts the bone stock into bone chip. A motor drives both the cleaning element and the mill element. The shell and mill unit may be part of a head unit. The head unit is removably attached to a base in which the motor is disposed. | 05-15-2014 |
20140163559 | Instruments and Method for Preparing an Intervertebral Space for Receiving an Artificial Disc Implant - Instruments and methods for preparing an intervertebral space for receiving an implant. An adjustable trial implant has an adjustable stop mechanism having a stop member connected thereto to vary the distance that a body portion of the trial implant can move into the intervertebral space. Cutting tools for forming cutouts in the adjacent vertebrae use the trial implant and/or a guide to position a cutting tool which may be a burr or a chisel. The chisel cutting tool can be moveable relative to a selected trial implant or the chisel cutting tools can be fixed onto a trial implant shaped body portion. | 06-12-2014 |
20140214042 | METHODS AND DEVICES FOR REMOVING ABNORMALITIES FROM BONE - Various exemplary methods and devices are provided for removing abnormalities from bone. In general, the methods and devices can be used to allow excess bone to be scraped from a bone surface. In an exemplary embodiment, a scraper tool is provided that includes an elongate shaft having a plurality of blades movably disposed therein. The blades can be configured to move as a unit between a retracted configuration, in which the blades can be entirely disposed within the elongate shaft, and an advanced configuration, in which at least a portion of the blades can extend distally from the elongate shaft and/or flare away from one another. A distal portion of each of the blades can have a radius of curvature corresponding to a radius of curvature of the bone to be scraped. | 07-31-2014 |
20140249533 | Rongeur - A rongeur is disclosed having a stationary shank and a crossbar slideable relative to the shank with a tongue in crossbar cooperating with a channel in the shank so as to interconnect the shank to the crossbar. At least one gap section is formed in both the shank and the crossbar to gain access to the interior of the rongeur to permit cleaning and lubrication without disassembling and reassembling the rongeur. Multiple gap sections can be placed in the rongeur longitudinally along the shaft and crossbar if desired. | 09-04-2014 |
20140257300 | POLYMER 4-IN-2 FEMORAL CUTTING INSTRUMENT HAVING SEPARABLE A/P AND CHAMFER CUTTING BLOCKS - An orthopaedic surgical instrument includes a polymer 4-in-2 cutting instrument having a number of metallic cutting guides secured thereto. An A/P femoral cutting block of the instrument is removably secured to the instrument's chamfer femoral cutting block. | 09-11-2014 |
20140257301 | RONGEUR AND METHOD FOR STIFFENING, GRASPING AND REMOVING TISSUE FROM A REGION OF THE SPINE - Rongeur and method for removing intervertebral disk tissue from a spinal column of a patient. A pair of bipolar electrodes on an elongated shaft is placed in proximity to the intervertebral disk tissue. Without withdrawing the instrument from the spinal column, the electrodes are activated with a source of RF energy to stiffen the intervertebral disk tissue, a source of saline solution is supplied to the intervertebral disk tissue and the intervertebral disk tissue is grasped with a grasping tool affixed in conjunction with the distal portion of the elongated shaft biting off a portion of the intervertebral disk tissue having been stiffened. The instrument is withdrawn from the spinal column of the patient to remove the portion of the intervertebral disk tissue. The inserting step, the placing, activating, supplying, grasping, and withdrawing steps are repeated until a desired portion of the intervertebral disk tissue has been removed. | 09-11-2014 |
20140257302 | CO-AXIAL HOT SWAPPABLE SYSTEM FOR MINIMALLY INVASIVE MEDICAL PROCEDURES - A device and method of delivering a medical tool which may be a resector, cutter, probe, or the like, including a memory arm compacted in a small diameter state which expands in a relaxed memory state, is disclosed. Said delivery may include using a hollow sheath to pre-compact or preload a memory blade into a compact position, transferring said compacted memory blade into a cannula, and deploying said memory blade from the distal end of said cannula whereby the memory blade returns to its normal expanded memory state and a deployment nut can be used to control the extension or the withdrawal of the memory arm and blade. | 09-11-2014 |
20140257303 | MILL HEAD FOR A BONE MILL, THE MILL HEAD HAVING ONE OR MORE CONTAINMENT RINGS THAT PREVENT UNWANTED DISCHARGE OF THE CONTENTS OF THE BONE MILL - A mill head for replaceable attachment to a base so as to collectively form a bone mill. The mill head includes: a first opening in which bone stock is introduced into the head; a cutting device that converts the bone stock into bone chips; a second opening through which the bone chips are discharged; and a third opening through which a motor integral with the base is attached to the cutting device. Internal to the mill head are containment rings. The containment rings prevent the discharge of material through the third opening. The containment rings are services the internal component of the mill head on which the cutting device rests. | 09-11-2014 |
20140276848 | TISSUE MODIFICATION DEVICES - Tissue modification devices, and particularly very low-profile, yet strong and manipulatable Rongeur devices. In general, these devices are low-profile, with a flat and thin distal end that may be much thinner than it is wide. The distal end includes a cutting window within which one or more blades move to cut tissue. The distal end region and the curved region forming an angle with an elongate rigid body may be sufficiently stiff and rigid so that the distal end can be pushed (or pulled) against a tissue to be cut with sufficient force so that even hard tissue such as bone may be held within the window and cut by the blade(s). | 09-18-2014 |
20140276849 | METHOD FOR ULTRASONIC TISSUE EXCISION WITH TISSUE SELECTIVITY - A surgical method utilizes a cutting blade having a thickness along a cutting edge of between about 0.0005 inch and about 0.020 inch and preferably between about 0.001 inch and 0.010 inch. The blade is moved in contact with relatively hardly tissues which are disposed adjacent to softer tissues at a surgical site in a patient. The blade is ultrasonically vibrated during the moving of the blade, whereby the hard tissue is cut with a modicum of damage being inflicted on the soft tissue. | 09-18-2014 |
20140296858 | MEDICAL INSTRUMENT - The invention relates to a medical instrument comprising at least one movable tool element and at least one actuating element which is mounted such as to be pivotal about a pivotal axis and is coupled to the at least one tool element for the purposes of moving the tool element as a result of a pivotal movement of the actuating element, wherein, for the pivotal mounting of the at least one actuating element, there is provided a pivotal bearing comprising a bearing shaft holder and a bearing shaft which is held in the bearing shaft holder in a working position, wherein the at least one actuating element incorporates the bearing shaft or the bearing shaft holder, wherein the bearing shaft holder has an insertion opening and is insertable through the insertion opening into the bearing shaft holder in a direction that is transverse or substantially transverse to the pivotal axis. | 10-02-2014 |
20140330276 | DISPOSABLE CYLINDRICAL CUTTER - A single use bone cutter comprised of two concentric cylinders and a series of insert blades or cutter disc is described. The cutter blades or cutter disc is preferably positioned at the distal end of the cutter. The bone cutter also comprises a guide rod that aids in the line of sight when using the cutter device. | 11-06-2014 |
20140336656 | MICROFRACTURE PICK - A microfracture pick having features configured to aid a user in advancing the microfracture pick through bone. The microfracture pick has an elongated member with a proximal end, a distal end, a sharp, optionally angled tip disposed adjacent the distal end of the elongated member, and at least one engaging feature disposed at one or more locations on the elongated member for engaging a complementary feature of a strike instrument. By striking an impact surface of the strike instrument, the user can produce a force that is translated via the elongated member of the microfracture pick through the tip, thereby making penetration of the tip through the bone more effective. | 11-13-2014 |
20150038973 | Methods and Devices for Implementing an Improved Rongeur - A rongeur which functions to act on (or bite) bone while approaching the bone surface from an axial orientation is provided. In one embodiment, a rongeur is provided with a rotatably/pivotally coupled cutting jaw component to cause the cutting jaw to exert force on the bone. The rongeur may include an axially sliding component which provides axial force and actuates a cutting jaw such that it pivots toward a bone surface. Additionally, a lip feature which creates an opposing surface wherein the cutting jaw pivots toward that surface in order to bite the bone may also be provided. The lip feature may act as a shim between dura mater tissue and the inferior surface of a bone. An axial rongeur may be configured to bite and remove bone when placed while under the surface of a patient's skin (e.g. after axially traversing a distance under the skin). | 02-05-2015 |
20150045797 | MENISCAL PROBE CUTTER - Instruments and methods that allow for a minimally invasive way to probe, locate, and cut a meniscus during a meniscectomy procedure. The instrument is a single hybrid probe/cutter instrument provided with both probing and cutting means that allow probing and cutting of the meniscus with the same hybrid instrument. A minimally invasive technique for probing and cutting (resecting) a torn area of a meniscus by employing the single, hybrid probing/cutting instrument is also provided. The technique provides a consistently good-quality meniscus with improved cosmetic results, and is simple and easily reproducible, strong, and time-saving for meniscal repairs. | 02-12-2015 |
20150289885 | RONGEUR WITH VENTED T-SLIDE AND/OR INCREASED STRENGTH - A rongeur comprising:
| 10-15-2015 |
20150305820 | SELF-CLEANING TISSUE REMOVAL INSTRUMENT AND METHOD OF USE - A self-cleaning tissue removal instrument is disclosed and described herein. The self-cleaning tissue removal instrument generally comprising: a handle operably coupled with a proximal end of a rail portion; a jaw portion operably coupled to a distal end of the rail portion, a longitudinal axis running along the proximal portion to the distal portion of the self-cleaning tissue removal instrument; wherein the jaw portion is moved from an open position to a closed position by operation of the rail portion translating along the longitudinal axis of the self-cleaning tissue removal instrument, and the jaw portion clamps down and removes tissue in the closed position; and a cleaning mechanism operably coupled with the rail portion, whereby the cleaning mechanism disengages any tissue attached to the jaw portion when the jaw portion longitudinally translates to the open position. | 10-29-2015 |
20160030055 | BONE PERFORATOR - A surgeon can place a bone perforator in contact with a bone, and can hammer on the bone perforator. The hammering can drive teeth on the bone perforator into the bone, thereby creating a perforation in the bone. The surgeon can pry or break the bone along the perforation, can access tissue beneath the bone as needed, and can replace the bone along the perforation. In some examples, the bone perforator is formed as a bendable sheet having teeth in a fixed, single-file pattern, with a hammerable surface opposite the teeth. In other examples, the bone perforator has repositionable teeth. | 02-04-2016 |
20160066929 | SURGICAL INSTRUMENT FOR HARVESTING BONE - A bone or tissue-cutting instrument for use with a manual handle or with a powered surgical tool includes an elongated shaft and a cutting head portion of a distal end of the shaft. The cutting head portion includes an annular arcuate blade located at the distal-most end of the cutting head portion for cutting or shaving adjacent tissue or bone. The cutting head portion may also include a distal opening defined by the arcuate blade and a proximal opening with a central passage therebetween for collecting and transferring cut bone or tissue cut by the arcuate blade. | 03-10-2016 |
20160081698 | BONE REMOVAL INSTRUMENT - Improved spinal instruments are provided. In particular, the present application relates to an improved rongeur that allows for multiple bites of bone to be performed in a patient before removing the rongeur from the patient. The rongeur includes a lower shaft and an upper shaft slidable relative to the lower shaft. The lower shaft and upper shaft form a jaw mechanism that can take multiple bites of bone, which can be deposited in a storage cavity formed in the upper shaft. To assist in removing the bone from within the storage cavity, an internal plunger mechanism can be provided that is actuated by a finger hold. In addition, at least portions of the upper shaft are detachable from the lower shaft such that the upper shaft can be thoroughly cleaned and re-used if desired. | 03-24-2016 |
20160095606 | BROSTEOTOME AND METHOD OF USE - An orthopaedic surgical instrument that includes an elongated body having a longitudinal axis extending through a distal end and a proximal end, and a plurality of cutting teeth are extending from a medial side of the elongated body. Each cutting tooth includes a first curved medial edge, and a curved outer surface that extends distally from the first curved medial edge to a second curved medial edge. When the instrument is viewed in a coronal plane, the curved outer surface of each medial cutting tooth extends parallel to the longitudinal axis of the elongated body. | 04-07-2016 |
20160106440 | SURGICAL RONGEUR WITH DISPOSABLE AND REPLACEABLE CUTTING BLADE - A surgical cutting device is described having a main body having an integral rear handle and a forward handle connected thereto. A sliding member sits atop a rail integral with the main body such that the sliding member is also moveably attached to the forward handle. The sliding member has a forward cutting device that is easily separable, reusable, disposable and replaceable using a simple mechanical engagement of perforations in the cutting device and protrusions in the sliding member. A strike end plate acts in conjunction with the sliding cutting device to grasp and cut bio matter from a patient during surgical procedures. | 04-21-2016 |
20160135817 | Adjustable Rongeur - An adjustable rongeur includes a first handle portion pivotally connected to a second handle portion. A shank is connected to the first handle portion at a proximal end of the shank, wherein the shank has a footplate at a distal end thereof. A crossbar is slidably engaged with the shank, wherein the crossbar is connected to the second handle portion, wherein a cutting opening is formed between a distal end of the crossbar and the footplate of the shank. An opening selection actuator is positioned within at least one of the first and second handle portion, wherein the opening selection actuator engages between the first and second handle portions to control a length of the cutting opening. | 05-19-2016 |