MAQUET Cardiovascular LLC Patent applications |
Patent application number | Title | Published |
20160106899 | GUIDABLE INTRAVASCULAR BLOOD PUMP AND RELATED METHODS - An improved intravascular blood pump and related methods involving the broad inventive concept of equipping the intravascular blood pump with guiding features such that the intravascular blood pump can be selectively positioned at a predetermined location within the circulatory system of a patient. | 04-21-2016 |
20150342605 | SURGICAL IMPLANT AND METHOD AND INSTRUMENT FOR INSTALLING THE SAME - A surgical implant comprising a receiver member and deployment member for clamping and sealing tissue of variable thickness, a corresponding applicator tool and surgical system for connecting, sealing, fastening and/or attaching tissue to itself, to other tissue and/or to non-tissue structures, and/or sealing the flow of fluid at and/or between structures such as tissue and vessel structures. | 12-03-2015 |
20150250474 | SURGICAL IMPLANT AND METHOD AND INSTRUMENT FOR INSTALLING THE SAME - A surgical implant comprising a receiver member and deployment member for clamping and sealing tissue of variable thickness, a corresponding applicator tool and surgical system for connecting, sealing, fastening and/or attaching tissue to itself, to other tissue and/or to non-tissue structures, and/or sealing the flow of fluid at and/or between structures such as tissue and vessel structures. | 09-10-2015 |
20150202061 | COMPOSITE PROSTHESIS WITH EXTERNAL POLYMERIC SUPPORT STRUCTURE AND METHODS OF MANUFACTURING THE SAME - A prosthesis including a support structure for enhancing kink and/or crush resistance. The support structure is connected to an outer surface of the prosthesis and includes at least two components, one of which has a lower melting point than the other. The component with the lower melting point is used to connect the support structure to the outer surface of the prosthesis. | 07-23-2015 |
20150142041 | APPARATUS AND METHODS FOR PERFORMING MINIMALLY-INVASIVE SURGICAL PROCEDURES - Devices, tools and methods for performing minimally invasive surgical procedures. Methods of performing minimally invasive ablation procedures. Methods of performing rapid exchange of tools in a device while the device remains in a reduced-access surgical space. | 05-21-2015 |
20150073202 | GUIDABLE INTRAVASCULAR BLOOD PUMP AND RELATED METHODS - An improved intravascular blood pump and related methods involving the broad inventive concept of equipping the intravascular blood pump with guiding features such that the intravascular blood pump can be selectively positioned at a predetermined location within the circulatory system of a patient. | 03-12-2015 |
20150024018 | ANTI-INFECTIVE ANTIMICROBIAL-CONTAINING BIOMATERIALS - A material including a plurality of fatty acid chains cross-linked together and a silver fatty acid salt formed with the fatty acid chains within the material. Methods for forming a material are also included. The silver-containing materials can be utilized alone or in combination with a medical device for the release and local delivery of one or more anti-infective agents. | 01-22-2015 |
20140343367 | VESSEL RETRACTOR - A surgical apparatus includes an elongated cannula having an external sidewall surface and a lumen extending between a cannula proximal regional and a cannula distal region, the cannula is further configured to receive an endoscope, and has a handle located at the cannula proximal region, a first wire extending from the cannula distal region and adapted to slide longitudinally with respect to the cannula in both a distal and proximal direction via a control at the handle, and a ring connected to the first wire. The ring has a curved surface with concavity hollowed towards a region of the cannula configured to receive the endoscope. | 11-20-2014 |
20140194876 | APPARATUS AND METHOD FOR REGULATING TISSUE WELDER JAWS - A surgical apparatus and methods for severing and welding tissue, in particular blood vessels. The apparatus includes an elongated shaft having a pair of relatively movable jaws at a distal end thereof. A first heating element on one of the jaws is adapted to heat up to a first temperature and form a welded region within the tissue, while a second heating element on one of the jaws is adapted to heat up to a second temperature and sever the tissue within the welded region. The first and second heating elements may be provided on the same or opposite jaws. A control handle provided on the proximal end of the elongated shaft includes controls for opening and closing the jaws, and may include an actuator for sending current through the first and second heating elements. The first and second heating elements may be electrically connected in series, and the first heating element may be bifurcated such that it conducts about one half of the current as the second heating element. A force-limiting mechanism provided either within the control handle, in the elongated shaft, or at the jaws limits the pressure applied to the tissue by the jaws to ensure that the tissue is severed and the ends effectively welded within a short amount of time. | 07-10-2014 |
20140172084 | Epicardial Clip - An epicardial clip for reshaping the annulus of the mitral valve of a heart. The epicardial clip includes a curved member having an anterior segment configured to be positioned in the transverse sinus of the heart, a posterior segment configured to be positioned on the posterior side of the heart, such as on or inferior to the atrioventricular groove, and a lateral segment extending between the anterior segment and the posterior segment. The lateral segment includes a curve such that the first end of the member is positioned at or above the plane of the mitral valve and the second end of the member is positioned at or below the plane of the mitral valve. | 06-19-2014 |
20140148641 | Organ Manipulator Apparatus - Organ manipulation devices for atraumatically grasping the surface of an organ and repositioning the organ to allow access to a location on the organ that would otherwise be substantially inaccessible. Methods of accessing a beating heart, retracting the heart using an organ manipulation apparatus, and stabilizing a surgical target area with a stabilizer. Both the organ manipulator and stabilizer are fixed to a stationary object which may be a sternal retractor. A system for performing beating heart coronary artery bypass grafting includes a sternal retractor, organ manipulator and stabilizer. | 05-29-2014 |
20140060691 | WOVEN PROSTHESIS AND METHOD FOR MANUFACTURING THE SAME - A woven prosthesis, such as a woven vascular graft, woven from warp and weft yarns. Velour warp yarns forming the prosthesis are selectively incorporated into a base layer of the prosthesis so as to provide a bulbous section without compromising the porosity of the prosthesis. | 03-06-2014 |
20140018748 | BLOWER INSTRUMENT, APPARATUS AND METHODS OF USING - A surgical blower for providing a directed stream to clear a surgical site, that can be used in multiple different use modes. In one use mode, the surgical blower is handheld by a user during operation. In another mode, a distal end portion of the blower is fixed to a foot of a stabilizer instrument and the handle of the blower is handheld. In another mode, a distal end portion of the blower is fixed to a foot of a stabilizer instrument and the handle of the blower is fixed to a stationary object such as a sternal retractor. In another mode, the distal end of the blower is free and the handle of the blower is fixed to a stationary object. An apparatus including a blower and a stabilizer is provided. Methods of using the blower as well as the apparatus are also provided. | 01-16-2014 |
20140012066 | Left and Right Side Heart Support - A cannulation system for cardiac support uses an inner cannula disposed within an outer cannula. The outer cannula includes a fluid inlet for placement within the right atrium of a heart. The inner cannula includes a fluid inlet extending through the fluid inlet of the outer cannula and the atrial septum for placement within at least one of the left atrium and left ventricle of the heart. The cannulation system also employs a pumping assembly coupled to the inner and outer cannulas to withdraw blood from the right atrium for delivery to the pulmonary artery to provide right heart support, or to withdraw blood from at least one of the left atrium and left ventricle for delivery into the aorta to provide left heart support, or both. | 01-09-2014 |
20130274786 | TISSUE DISSECTOR APPARATUS AND METHOD - Surgical apparatus and method includes a cannula that houses an endoscope and supports a dilating element near a distal end of the cannula. The dilating element has a dimension which is greater than the diameter of the cannula for enlarging a surgical cavity in tissue as the cannula is advanced through tissue at a surgical site to provide working space adjacent a target vessel within which surgical instruments may be conveniently manipulated. The dilating element of oval sided shape permits surrounding tissue to be pushed away or otherwise displaced away from the target vessel atraumatically. A locking mechanism is disposed on the cannula, which accepts a succession of mating dilating elements of progressively larger dimensions for successive insertion and enlargement of a surgical cavity as required. In one embodiment, the dilating element is made of rigid plastic, and in another embodiment, the dilating element is made of resilient material that may be confined within a retractable sheath which, in the extended position, encases and compresses the dilating element to a smaller dimension and which, in a retracted position, allows the dilating element to resiliently expand and enlarge the surgical cavity. | 10-17-2013 |
20130178849 | DEVICES AND METHODS FOR MINIMALLY-INVASIVE SURGICAL PROCEDURES - Devices, instruments and tools for minimally invasive surgical procedures. Port devices and methods for hemostatically sealing and providing a port through a tissue wall that interfaces with a fluid containing chamber, by minimally invasive techniques. Assemblies, instruments and methods for minimally invasive access to and through a tissue wall that interfaces with a fluid containing chamber, and for visualizing same. Instruments, assemblies and methods for minimally invasive surgical procedures, including ablation. | 07-11-2013 |
20130095264 | Composite ePTFE/Textile Prosthesis - A composite intraluminal prosthesis which is preferably used as a vascular prothesis includes a layer of ePTFE and a layer of textile material which are secured together by an elastomeric bonding agent. The ePTFE layer includes a porous microstructure defined by nodes interconnected by fibrils. The adhesive bonding agent is preferably applied in solution so that the bonding agent enters the pores of the microstructure of the ePTFE. This helps secure the textile layer to the ePTFE layer. | 04-18-2013 |
20130072758 | VESSEL RETRACTOR - A retractor and a surgical tool are positioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a first portion with an axis approximately parallel to the axis of the cannula and a second portion with an axis that can be skewed relative to the axis of the cannula. The dissection cradle is located at the distal end of the second portion of the retractor, and may include two substantially parallel, spaced legs with the retractor shaped in a loop between and in a plane skewed relative to the axes of the legs, and with the loop directed away from the surgical tool. Thus, in operation, a surgeon locates a vessel and side branch of interest and extends the retractor to cradle the vessel in the dissection cradle. Once cradled, the retractor may be deflected to urge the vessel away from the axis of the cannula to isolate the side branch for exposure to the surgical tool. Removable, transparent tips are selectively positioned at the distal end of the cannula for performing dissection and transection via a single cannula. Additionally, the tips are configured to align the apices of the tips with the central axis of the endoscope to maximize the visual field through the tips via the endoscope. Wing-like protrusions on an alternate tip for the cannula facilitate tissue dissection in forming a tunnel in tissue along a target vessel. Swept back forward edges on the wing-like protrusions promote easy tissue dissection using reduced force to advance the cannula and alternate tip through tissue surrounding the target vessel. | 03-21-2013 |
20120289765 | PORTABLE AND MODULAR TRANSPORTATION UNIT WITH IMPROVED TRANSPORT CAPABILITIES - A medical device, such as an intra-aortic balloon pump or carrier with an extendable wheel track and handle configured to be removably carried and integrated with a cart. The wheel track is configured to extend upon extension of the handle and to return to its original position upon retraction of the handle. | 11-15-2012 |
20120165918 | Woven Prosthesis and Method for Manufacturing the Same - A woven prosthesis, such as a woven vascular graft, woven from warp and weft yarns. Velour warp yarns forming the prosthesis are selectively incorporated into a base layer of the prosthesis so as to provide a bulbous section without compromising the porosity of the prosthesis. | 06-28-2012 |
20120157788 | SURGICAL INSTRUMENTS, SYSTEMS AND METHODS OF USE - A surgical instrument includes a mount body, a joint member, an arm, and a working end. The mount body has a top portion, a distal end, a proximal end and a bottom portion. The joint member is pivotally mounted at a distal end portion of the mount body, to allow positioning of a proximal portion of an arm extending distally from the joint member. The joint member is also configured to at least partially constrain movement of the proximal portion of the arm to a plane. The working end is mounted to a distal end portion of the arm. The surgical instrument can be configured as a heart stabilizer or a heart positioner. The joint member may further be configured as a slotted ball, a disk member, or a combination thereof. | 06-21-2012 |
20120078061 | Method and Devices for Improved Tissue Stabilization - Devices and methods are disclosed for accessing and stabilizing an unstable or moving tissue structure within a patient's body, and in particular, for temporarily stabilizing a target site on the beating heart. The devices generally involve tissue stabilizers having at least one multiple link support member operably connecting a stabilizer foot to a retractor. The tissue stabilizer may have a stabilizer foot allowing for additional members to be connected to the stabilizer foot at discreet locations. The support member and the additional members may be attachable to a retractor. The support member and the additional members may be operably associated with attachments or mounts which provide additional degrees of freedom at a connection to the retractor. | 03-29-2012 |
20120078037 | VESSEL HARVESTER - Apparatus and method for harvesting selected vessels in the body of a patient include manual manipulation of a rigid dissecting endoscope and the reconfiguration thereof to facilitate tissue dissection and tissue dilation in the formation of an anatomical space about the vessel within which side-branch vessels may be manipulated in preparation for severance and removal of the vessel from the anatomical space. | 03-29-2012 |
20120046677 | MODULAR VESSEL HARVESTING SYSTEM AND METHOD - A vessel harvesting system that is suitable for harvesting target vessels such as the saphenous vein or radial artery for cardiac artery bypass graft surgery. The system includes a vessel harvesting tool with an elongated cannula and a plurality of surgical instruments therein for separating the target vessels from the surrounding tissue and side branches. The harvesting tool includes a modular handle unit with a base attached to the elongated cannula and a sled that can adapt the base to various types of vessel severing/securing tools, such as tissue welders, bipolar scissors, and bipolar bisectors. The handle unit may be relatively rigid and integrated with the various tool movement controls to facilitate one-handed operation by a user. A severing/securing tool rotation mechanism may be incorporated within the handle and operated by a thumbwheel or other such mechanism. The vessel harvesting system may also provide distal CO | 02-23-2012 |
20120029406 | DEVICE AND METHOD FOR COMPRESSING WOUNDS - A dressing for applying compression to a wound in a patient includes a bladder having a non-deformable end wall and a deformable membrane. The dressing may include a flexible web having an adhesive layer on one side thereof for securing the dressing to the patient so as to hold the bladder against the patient's skin. Upon inflation, the deformable membrane projects towards the patient's skin and exerts pressure on the wound to reduce the flow of blood from the wound. | 02-02-2012 |
20120022316 | Method and Apparatus for Preventing Air Embolisms - Method and apparatus for preventing air embolisms during surgical procedures which involves providing a fluid source in communication with an aperture extending into an anatomical cavity such that fluid may be delivered into the cavity when a condition of negative pressure exists in the cavity, thereby preventing the introduction of air into the cavity. | 01-26-2012 |
20120010463 | INSTRUMENT AND METHOD FOR REMOTELY MANIPULATING A TISSUE STRUCTURE - A retractor and a surgical tool are posittioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a dissection cradle that is resiliently supported along an axis skewed relative to the axis of the cannula. The dissection cradle, in operation, is extended to cradle the target vessel, and the retractor may be fully extended to urge the vessel away from the axis of the cannula to isolate a side branch for exposure to a surgical tool. The retractor includes a hollow support and a spray nozzle disposed in the distal end of the retractor to form an irrigation system and lens washer that can be selectively positioned to direct the spray of irrigation fluid at a remote surgical site or at an endoscopic lens. | 01-12-2012 |
20110257643 | APPARATUS AND METHOD FOR REGULATING TISSUE WELDER JAWS - A surgical apparatus and methods for severing and welding tissue, in particular blood vessels. The apparatus includes an elongated shaft having a pair of relatively movable jaws at a distal end thereof. A first heating element on one of the jaws is adapted to heat up to a first temperature and form a welded region within the tissue, while a second heating element on one of the jaws is adapted to heat up to a second temperature and sever the tissue within the welded region. The first and second heating elements may be provided on the same or opposite jaws. A control handle provided on the proximal end of the elongated shaft includes controls for opening and closing the jaws, and may include an actuator for sending current through the first and second heating elements. The first and second heating elements may be electrically connected in series, and the first heating element may be bifurcated such that it conducts about one half of the current as the second heating element. A force-limiting mechanism provided either within the control handle, in the elongated shaft, or at the jaws limits the pressure applied to the tissue by the jaws to ensure that the tissue is severed and the ends effectively welded within a short amount of time. | 10-20-2011 |
20110202082 | TISSUE DISSECTOR APPARATUS AND METHOD - Surgical apparatus and method includes a cannula that houses an endoscope and supports a dilating element near a distal end of the cannula. The dilating element has a dimension which is greater than the diameter of the cannula for enlarging a surgical cavity in tissue as the cannula is advanced through tissue at a surgical site to provide working space adjacent a target vessel within which surgical instruments may be conveniently manipulated. The dilating element of oval sided shape permits surrounding tissue to be pushed away or otherwise displaced away from the target vessel atraumatically. A locking mechanism is disposed on the cannula, which accepts a succession of mating dilating elements of progressively larger dimensions for successive insertion and enlargement of a surgical cavity as required. In one embodiment, the dilating element is made of rigid plastic, and in another embodiment, the dilating element is made of resilient material that may be confined within a retractable sheath which, in the extended position, encases and compresses the dilating element to a smaller dimension and which, in a retracted position, allows the dilating element to resiliently expand and enlarge the surgical cavity. | 08-18-2011 |
20110046624 | SINGLE HANDLED ENDOSCOPIC VESSEL HARVESTING SYSTEM WITH ROTATION CONTROL - A surgical instrument includes an elongated tube having a proximal end and a distal end, a handle coupled to the proximal end of the tube, and a tool that is rotatable and translatable relative to the tube, wherein the handle includes a control for rotating the tool relative to the tube, and wherein the control is coupled to the tool such that a movement of the control through an angle θ | 02-24-2011 |
20110046439 | CLEANING SYSTEM FOR IMAGING DEVICES - An apparatus includes a tubular structure having a proximal end, a distal end, and a body extending between the proximal and distal ends, wherein the body includes a lumen for housing at least a part of an imaging device, and a fluid delivery channel that is fixed in position relative to the body, and an opening that is in fluid communication with the fluid delivery channel, wherein the fluid delivery channel has a first portion, and a second portion that forms an angle with an axis of the first portion. | 02-24-2011 |
20100234843 | APPARATUS AND METHOD FOR INTEGRATED VESSEL LIGATOR AND TRANSECTOR - Surgical treatment of tissue includes electrocauterization of blood vessels interposed between spaced sets of electrodes of opposite polarity, and includes transection of such tissue by a cutter that is mounted between the spaced sets of electrodes for translational and lateral movement relative to the sets of electrodes. Orientations of the sets of electrodes within a range of angles about an elongated axis of a supporting body are controlled by manual movement of an actuator mounted near a proximal end of the body for movement through a smaller range of angles via linkage connecting the actuator to the electrodes. Tissue dissection with gas insufflation to form an anatomical space in tissue is facilitated by a fluid outlet port located near the tissue-dissecting tip at the distal end of the elongated body that delivers through the tissue-dissecting tip to the dissected tissue a fluid under pressure that is supplied along a lumen within the elongated body. | 09-16-2010 |
20100191043 | METHODS AND DEVICES FOR ISOLATING A VESSEL - A method of harvesting a target vessel includes creating a first incision, inserting a light source into a vessel through the first incision, the vessel located next to the target vessel, using the light source to illuminate a portion of the vessel, locating the target vessel from outside the vessel using the illuminated portion of the vessel, and dissecting at least a portion of the target vessel from surrounding tissue. A method that involves a target vessel includes inserting a light source into a vessel that is located next to the target vessel, providing light inside the vessel using the light source, and using light transmitted through a wall of the vessel to illuminate the target vessel or tissue next to the target vessel. | 07-29-2010 |
20100042099 | ELECTROCAUTERY SURGICAL SCISSORS - A tissue-cutting apparatus includes first and second electrically conductive tissue-cutting blades coupled together about a common pivot for relative movement thereabout between open and closed positions, the first and second tissue-cutting blades, each having an elongated cutting edge with the cutting edges disposed to pass each other in contiguous relationship along the elongated cutting edges as the first and second relatively move from open toward closed positions, an electrode insulated from and attached spaced away from each of the first and second blades on a side thereof remote from the contiguous cutting edges, an electrode extension mounted on and connected to at least one of the electrodes on a side thereof remote from the cutting blade to extend in a direction toward the cutting edge of the associated blade, and conductors connected to the electrodes for supplying electrical signals thereto. | 02-18-2010 |
20100010538 | RESHAPING THE MITRAL VALVE OF A HEART - Assemblies and methods for reshaping a portion of a heart, such as the mitral valve and/or the ventricle, are disclosed. The assemblies include a plurality of tissue anchors and a connecting member extending between the plurality of tissue anchors. The tissue anchors and the connecting member act to reshape a portion of the heart, without the need to gain access to the interior of the heart. | 01-14-2010 |
20100004504 | EPICARDIAL CLIP - An epicardial clip for reshaping the annulus of the mitral valve of a heart. The epicardial clip includes a curved member having an anterior segment configured to be positioned in the transverse sinus of the heart, a posterior segment configured to be positioned on the posterior side of the heart, such as on or inferior to the atrioventricular groove, and a lateral segment extending between the anterior segment and the posterior segment. The lateral segment includes a curve such that the first end of the member is positioned at or above the plane of the mitral valve and the second end of the member is positioned at or below the plane of the mitral valve. | 01-07-2010 |
20090299367 | Surgical Instrument and Method - A surgical instrument includes an elongated body having a distal end, a proximal end, and a bore extending between the distal and proximal ends, a pair of jaws for severing vessel mounted on the distal end of the body, wherein at least one of the jaws has an electrically conductive material, and a handle coupled to the proximal end of the elongated body, wherein in a first mode of operation, the electrically conductive material is for receiving energy from a DC source, and in a second mode of operation, the electrically conductive material is for receiving energy from a RF source. | 12-03-2009 |
20090297692 | SELF-AGGREGATING PROTEIN COMPOSITIONS AND USE AS SEALANTS - An implantable member for use in the body is provided herein. This implantable member includes a porous biocompatible substrate; the substrate having at least one surface sealed fluid-tight with self-aggregating protein particles of substantially the same diameter range. The self-aggregated protein particles are formed from a deposited aqueous slurry of the protein particles. | 12-03-2009 |
20090131907 | Endoscopic Cardiac Surgery - Apparatus and surgical methods establish temporary suction attachment to a target site on the surface of a bodily organ for enhancing accurate placement of a surgical instrument maintained in alignment with the suction attachment. A suction port on the distal end of a supporting cannula provides suction attachment to facilitate accurate positioning of a needle for injection penetration of tissue at the target site on the moving surface of a beating heart. Force applied via the suction attachment to the surface of the heart promotes perpendicular orientation of the surface of the myocardium for enhanced accuracy of placement of a surgical instrument thereon. A hollow needle and a supporting channel therefor, each include a slot along an outer wall between ends thereof, are selectably rotatable to align the slots for releasing a cardiac lead from within the needle through the aligned slots. | 05-21-2009 |
20090131747 | Instrument And Method For Remotely Manipulating A Tissue Structure - A retractor and a surgical tool are positioned within a cannula, and a dissection cradle of the retractor is positioned at the distal end of the cannula. The retractor includes a dissection cradle that is resiliently supported along an axis skewed relative to the axis of the cannula. The dissection cradle, in operation, is extended to cradle the target vessel, and the retractor may be fully extended to urge the vessel away from the axis of the cannula to isolate a side branch for exposure to a surgical tool. The retractor includes a hollow support and a spray nozzle disposed in the distal end of the retractor to form an irrigation system and lens washer that can be selectively positioned to direct the spray of irrigation fluid at a remote surgical site or at an endoscopic lens. | 05-21-2009 |