17 results about "Suture clip" patented technology

An absorbable copolymer, and a preparation method and use thereof are disclosed. Firstly lactide and trimethylene carbonate are polymerized to form a prepolymer, and then the prepolymer is copolymerized with glycolide to form a PGLT copolymer. The PGLT copolymer contains three chain segments of polymerized glycolide, polymerized lactide and polymerized trimethylene carbonate. The PGLT copolymer obtained by stepwise polymerization has high strength and good toughness. It is suitable for the preparation of medical instruments such as absorbable tissue closure clips, suture clips, suture anchors, anastomosis nails, etc.

The utility model relates to an abdominal wall anastomat line grabbing assembly which comprises an upper elastic hook and a lower elastic hook, the upper elastic hook and the lower elastic hook are both of a thick steel sheet structure, one end of the upper elastic hook and one end of the lower elastic hook are connected to a connecting rod at the same time, and the end, away from the connecting rod, of the upper elastic hook is bent towards the direction of the lower elastic hook to form an upper bent hook part. The end, away from the connecting rod, of the lower elastic hook is bent towards the upper elastic hook to form a lower hook portion, the length of the upper elastic hook is larger than that of the lower elastic hook, a containing groove is formed in the face, close to the lower elastic hook, of the upper elastic hook, the lower hook portion of the lower elastic hook is clamped in the containing groove, and the suture is clamped between the lower hook portion and the inner wall of the containing groove. The suture grasping device has the advantages that it is guaranteed that the suture grasping assembly can stably grasp the suture, and potential safety hazards brought to an operation are reduced.

The invention discloses a suture clamp which comprises two nail arms, nail legs, a bending part and an extrusion part, each nail arm is provided with the nail leg, and the nail leg is provided with a sharp end part; the two nail arms are rigidly connected with the two ends of the bent part respectively, the bent part deforms in response to force application to the nail arms, the nail legs on the two nail arms are gradually closed, and the bent part keeps the shape unchanged after deformation, so that the relative position between the two nail arms is kept unchanged; compared with the prior art, the compression force of the suture clamp on the tissue can be improved, and the hemostatic effect is improved.

The invention relates to a self-flushing type side discharge driver. The driver includes a handle assembly including an impingement surface and a retention splint, a suture splint, and a handle body. The handle body is rotatable relative to the suture splint. The driver also includes a driver tube assembly and an anchor assembly extending from the suture splint. The anchor assembly includes a proximal screw and a distal anchor having a self-piercing tip. The anchor assembly is connected to the driver tube assembly. In a pre-deployed configuration, the screw and the anchor are spaced along the driver tube assembly, and in a post-deployed configuration, the screw abuts or engages the anchor. The rotation of the handle relative to the suture splint moves the screw from the pre-deployed configuration to the post-deployed configuration.

A plurality of suture clips are configured to be placed in a predetermined path of a suture needle, the suture needle being advanced by a device inserted into the integral cavity and remotely operated from said location to secure and clamp the suture device. In some embodiments, a suture tightening device is placed in the predetermined path and is configured to capture the suture and shorten a length of the suture engaged with the tissue by pulling on the suture. In some embodiments, a plurality of sensors are placed along the needle path and are used to provide an indication of needle position and / or status.

The clamping arm assembly comprises an upper jaw and a lower jaw, a window is formed in the upper jaw, a cover plate is movably arranged in the window, a thread clamping seam is formed between the cover plate and the wall face of the window, and an elastic piece is connected between the cover plate and the upper jaw; the upper jaw comprises a limiting part, and the limiting part is located above the thread clamping seam; under the elastic action of the elastic piece, the top surface of the cover plate abuts against the bottom surface of the limiting part for limiting; the stitching instrument comprises a base assembly, a barrel and the clamping arm assembly. After line puncture is completed, a suture is clamped in the suture clamping seam, the suture can be directly taken out of a human body by moving the clamping arm assembly, additional tool operation is not needed, when the suture is pulled to take out the suture, the acting force of the suture on the cover plate is opposite to the pressing direction of the cover plate, and the cover plate cannot be tighter and tighter by pulling the suture; the suture can be taken out as long as the acting force for pulling the suture is larger than the acting force for pressing the cover plate, the suture can be taken out easily, and the risk of pulling the suture apart does not exist during suture taking.

Anchoring for arms of a suture clip. In some embodiments, an arm-attached anchoring element undergoes a change in shape as it is released from overtube confinement, re-orienting its sharpened tip so that it is prepared for insertion into tissue. The anchoring element may be shaped with recesses and elastic members positioned so that the anchoring element resists deformation strongly once released, but resists less forcefully while held in its confined shape. In some embodiments, an anchoring element is constructed of a first piece, and an arm is constructed as part of a second piece. Arm and anchoring element are assembled, for example, using interlocking shapes cut into each.

Suturing clips which may be guided to a heart by a trans-vascular / trans-septal approach, and yet operate to close the left atrial appendage (LAA) from a position located entirely within the LAA are described. Arms of suturing clips constructed of a superelastic alloy are expanded from a catheter delivery system, anchored within the LAA and / or ostium of the LAA, and then collapsed again to a suturing configuration. Collapse is optionally by a reverting mechanism, wherein arms are constrained to collapse back in a direction reverse to their original expansion; or by an everting mechanism, wherein arm portions move past their expanded position to close with each other on an opposite side of their original position. In some embodiments, delivery systems include further elements to assist in clip placement at the LAA, for example a spreader for spreading the LAA, and / or a stopper for preventing deep intrusion to the LAA.

The utility model provides a multifunctional medical suture clamp, which belongs to the technical field of medical instruments and comprises suture clamping pliers, two suture clamping pliers and a suture clamping device, and the two suture clamping pliers are crossed through a hinged shaft; the two grooves are respectively formed in one side ends of the two wire clamps; the two blades are fixedly connected to the close ends of the two wire clamps; by means of the integrated tool design, the multiple functions of stable clamping, accurate shearing, safe guiding and the like of the suture line are integrated, the grooves in the suture line clamping pincers ensure that a doctor feels comfortable during an operation, meanwhile, due to the built-in blades, the suture line can be sheared off more conveniently, and the suture line can be conveniently and rapidly sheared off. Tools do not need to be switched in an operation, so that the operation time is greatly saved, and the operation efficiency is improved.

The utility model relates to the technical field of suture testing, and discloses a suture tensile property testing device which comprises a testing table, a groove is formed in the upper surface of the testing table, a stepping motor is fixedly installed on one side of the testing table, a lead screw is rotationally connected to the interior of the groove, and one end of the lead screw is fixedly connected to the output end of the stepping motor. A graduated scale is arranged on the upper surface of the test board, a connecting block is in threaded connection with the exterior of the lead screw and slidably connected into the groove, and mounting frames are fixedly connected to one side of the upper surface of the connecting block and one side of the upper surface of the test board. In the tensile property test of the sewing thread, after the sewing thread is wound by using the wire spool, the outer part of the sewing thread is propped through the pressing plate, so that the clamping force is enhanced, and meanwhile, the friction force is further increased by using the extrusion block, so that the fastening force for clamping the sewing thread is favorably improved; the phenomenon of slippage caused by unstable clamping of the sewing thread in the test is effectively reduced, and the wire spool is convenient to disassemble and assemble.

At least one embodiment of the present disclosure provides a clamping mechanism and a surgical robot, in which a hollow connecting tube is connected with a wire end; a wire storage assembly includes a clamping assembly, a moving driving mechanism and an opening and closing driving mechanism, the clamping assembly is configured to clamp one end of a suture; when the clamping assembly is located in the hollow connecting tube, the suture extends out of the hollow connecting tube from the wire end; the moving driving mechanism is configured to drive the clamping assembly to move in the hollow connecting tube to change the length of the suture outside the wire end and drive the clamping assembly to extend out of or retract into the hollow connecting tube; the opening and closing driving mechanism is configured to drive the clamping assembly to open or close; in response to the clamping assembly being driven by the moving driving mechanism to extend to the outside of the hollow connecting tube, the opening and closing driving mechanism drives the clamping assembly to open to release the suture; when the clamping assembly is opened, in response to the opening and closing driving mechanism driving the clamping assembly to close, the moving driving mechanism drives the clamping assembly to move to retract into the hollow connecting tube.

An apparatus includes a first jaw member including a first needle clamp pad and a first suture clamp pad. The apparatus also includes a second jaw member including a second needle clamp pad and a second suture clamp pad. The first and second jaw members are pivotable relative to each other between an open state, a first closed state in which the first and second suture clamp pads are configured to cooperate with each other to securely grip a suture, and a second closed state in which the first and second needle clamp pads are configured to cooperate with each other to securely grip a needle.

An apparatus includes a first jaw member including a first needle clamp pad and a first suture clamp pad. The apparatus also includes a second jaw member including a second needle clamp pad and a second suture clamp pad. The first and second jaw members are pivotable relative to each other between an open state, a first closed state in which the first and second suture clamp pads are configured to cooperate with each other to securely grip a suture, and a second closed state in which the first and second needle clamp pads are configured to cooperate with each other to securely grip a needle.

The utility model relates to the technical field of medical instruments, and discloses a disposable memory alloy suture line packaging structure which comprises an upper cover and a lower cover, a containing area is arranged in the lower cover, all corners of the containing area are arranged to be round corners, and a plurality of first suture line clamping grooves and second suture line clamping grooves are formed in the edge of the containing area. A suture needle clamping groove and a suture clip clamping groove are formed in the middle of the containing area, the first suture clamping groove is of an arc-shaped structure, the second suture clamping groove is of a linear structure and forms a rail suitable for winding of alloy suture lines, and the suture needle clamping groove comprises two or more sets of left clamping pieces and right clamping pieces and forms a first clamping channel used for containing straight needles. And the second clamping channel is used for placing a triangular needle or a round needle. The suture needle is exquisite in structural design, small in occupied space, safe, convenient and capable of reducing the risk of contamination of suture needles and threads.

Suture clips configured to be placed in a predetermined path of a suturing needle that advances through a device inserted to a body cavity, and remotely operated from that position to secure and clamp suturing. In some embodiments, a suture tightening device is placed in the predetermined path and configured to capture the suture and shorten a length of tissue-engaged suture by pulling on the suture. In some embodiments, sensors are placed along the needle path and used to provide an indication of needle position and / or status.

A self-inserting side-loading driver. The driver includes a handle assembly that includes an impact surface and retaining splints, suture splints, and a handle body. The handle body is rotatable relative to the suture splints. The driver further includes a driver tube assembly and an anchor assembly extending from the suture splints. The anchor assembly includes a proximal screw and a distal anchor having a self-inserting tip. The anchor assembly is connected to the driver tube assembly. In a pre-deployment configuration, the screw and the anchor are spaced along the driver tube assembly, and in a post-deployment configuration, the screw abuts or engages the anchor. The rotation of the handle relative to the suture splints moves the screw from the pre-deployment configuration to the post-deployment configuration.

The application discloses a kind of composite material preform single edge suture line ring forming device and method, device includes suture needle driving unit, suture material clamping unit, suture line clamping unit, line ring forming shape monitoring unit, structure unit;Method is first by suture material clamping unit clamping suture material, suture line is introduced by thread carrier in suture line clamping unit, passes through suture needle and is clamped by thread holder in suture line clamping unit, and suture needle driving unit electric push rod drives suture needle to complete suture action, then by visual sensor in line ring forming shape monitoring unit Real-time monitoring line ring forming shape.Compared with prior art, the shape change of line ring forming is monitored by visual sensor in real time in the present application, the relationship between suture process parameters such as suture needle penetration, suture line directness, suture material thickness and line ring shape in suture process is obtained, and the forming quality law of line ring with suture needle pose under different suture process parameters is ascertained.