81 results about "Suture fixation" patented technology

The invention discloses an integrated interventional venous valve and a preparation method thereof. The integrated interventional venous valve comprises a valve stent, a valve leaflet and a skirt; the valve stent comprises a first annular grid stent, a second annular grid stent and a straight rod for connecting the first annular grid stent and the second annular grid stent; the skirt edge covers the inner and outer surfaces of the first annular grid bracket and the second annular grid bracket; the valve leaflet is arranged on the straight rod, one side of the valve leaflet is connected with the skirt edge, and the free surface of the other side of the valve leaflet is arc-shaped; according to the integrated interventional venous valve, the valve leaflet and the skirt edge cover the inner surface and the outer surface of the valve support, so that the valve support, the valve leaflet and the skirt edge do not need to be fixed through sewing, the problems of complexity and potential tearing risk of split type processing are solved, and by arranging the material and the structure of the valve support, the integral interventional venous valve can be manufactured. And the valve leaflet free surface has a bionic arc shape, so that the integrated interventional vein valve can adapt to the diameter change of a blood vessel.

The present invention provides knotless suture anchor systems and devices for attaching soft tissue to bone. The systems and devices include suture anchors configured to engage and fasten sutures using set screws such that the locked sutures are free from frictional engagement with bone, screw threading, or internal walls of the anchors and set screws. Fastened sutures may also be re-tensioned by loosening a set screw to unfasten the sutures, adjusting the positioning of the sutures, and tightening the set screw to refasten the sutures. In some embodiments, the systems and devices enable the insertion of a suture anchor without preloading sutures, such that one or more sutures may be fastened to the suture anchor after implanting the suture anchor into a subject.

A surgical guidewire device includes an outer tube and a guide needle. The outer tube has a needle tip formed at a tube distal end of the outer tube. The guide needle is movably disposed in the outer tube and has a needle eye structure. When the surgical guidewire device is in use, a suture extends through the needle eye structure, and is carried through the outer tube along with the needle eye structure as the guide needle is moved relatively toward the tube distal end and then away from the outer tube.

Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium, through the mitral valve, and into the left ventricle. A ventricular anchor is deployed from the catheter and into a wall of the left ventricle, leaving a ventricular suture attached to the ventricular anchor and extending proximally through the catheter. A leaflet anchor is deployed to secure a mitral valve leaflet to a leaflet suture, with the leaflet suture extending proximally through the catheter. The leaflet suture is secured to the ventricular suture to limit a range of travel of the leaflet in the direction of the left atrium. Also disclosed is an assembled in situ mitral valve leaflet restraint, having a neo papillary muscle and a neo chordae tendinea.

A delivery apparatus for a medical device can include a first shaft, a second shaft, a suture guide, a suture, an apex guide, and a suture retention member. The second shaft can be disposed within and movable relative to the first shaft. The suture guide can be coupled to the second shaft. The suture can extend from the suture guide and can be configured for releasably securing the medical device to the delivery apparatus. The apex guide can be movably coupled to the suture and configured for engaging an end of the medical device and guiding the end of the medical device into the first shaft. The suture retention member can be movable relative to the suture guide and the suture and configured for selectively securing the suture relative to the suture guide.

A method of preparing a suture fixation device for use in surgery to treat pelvic organ prolapse includes providing a delivery device and a tissue fixation device. The tissue fixation device includes a tab connected to a tissue anchor, with the tissue anchor having a suture eyelet. The method includes instructing a user to hold the tab and insert the tissue anchor into the delivery device and breaking the tab away from the tissue anchor leaving the tissue anchor in the delivery device.

The utility model relates to a temporal muscle suturing and fixing device for neurosurgery, which is characterized in that at least one suturing line is connected onto a screw, and the other end of each suturing line is connected with a suturing needle. The device has the beneficial effects that the screw is directly fixed on the skull; the needle holder is provided with a suture needle to suture temporalis, and the suture needle is removed; the thread on one side of the screw and the thread on the other side of the temporalis can be knotted, fixation after the temporalis is cut open in a neurosurgery operation can be effectively completed, poor fixation of the temporalis is avoided, temporalis atrophy of a patient after an operation is avoided, psychological stress brought to the patient due to unattractive appearance caused by amyotrophy on one side after the operation is avoided, the design is simple and practical, and practicability is high. The device can be popularized to be used in various intracranial operations.

The present invention relates to a suture-free puncture and drainage kit, comprising: a drainage kit and a puncture kit. The drainage kit comprises: a drainage tube, and a silicone pad sleeved on the drainage tube in an interference fit manner, wherein the drainage tube has a balloon surrounding the drainage tube; and the tail end of the drainage tube has an inflation interface and a drainage interface, the inflation interface being in communication with the balloon. The puncture kit comprises: a dilator, and a tearable sheath tube sleeved on the dilator, the inner diameter of the tearable sheath tube being larger than the outer diameter of the drainage tube. The beneficial effects lie in that due to the cooperation between the balloon on the drainage tube and silicone pad, suturing fixation is not required during drainage through the drainage tube, thus secure fixation can be achieved, and a penetration point can also be sealed, so as to isolate the human body cavity from contact with the external environment so as to avoid secondary injury and reduce the risk of infection; and the overall structure is simple, and the operation is convenient.

A multiple-firing clip device includes a hollow shaft defining a lateral opening communicating with an environment and a distal shaft portion between the lateral opening and a distal end opening. A shuttle longitudinally moves on the shaft and comprises a shuttle body defining a lumen surrounding the shaft, a snare, and a snare-extender slide defining a snare track to form a snare travel path in which the snare is disposed from the body and through the track and a portion of the body. The slide moves along a given extent defining a slide distance and a distal end and movement of the slide to the distal end shortens the snare travel path to extend the snare portion through the lateral opening, through the distal shaft portion, and distally out from a distal side of the body longer than the given extent to secure a suture with the snare.

The utility model provides an anorectal drainage tube fixing patch, and relates to the technical field of anorectal drainage tube fixing patches, the anorectal drainage tube fixing patch comprises a flexible patch, a fixing structure is arranged on the flexible patch, the fixing structure is mainly composed of a round hole, the round hole is formed in the flexible patch, a fixing ring is fixedly connected to the flexible patch, and the fixing ring is fixedly connected to the flexible patch. Three sliding rods are slidably inserted into the fixing ring, one end of each sliding rod is fixedly connected with a clamping block, an adjusting cover is rotatably connected to the flexible patch, three adjusting blocks are fixedly connected to the adjusting cover, the sliding rods are sleeved with springs, one end of each spring is fixedly connected to the fixing ring, and the other end of each spring is fixedly connected to the clamping block. The utility model solves the problems that the drainage tube is usually fixed on the body of a patient in a sewing manner at present, the drainage tube and the liquid collecting bag need to be replaced regularly, and the suture needs to be removed when the drainage tube and the liquid collecting bag are fixed in a sewing manner, so that the process can cause pain and increase the infection risk, and the safety of the patient is reduced.

The utility model discloses an automatic sewing device which comprises a device body, a base and a top arm, the base and the top arm are respectively connected with the device body, and the top arm is arranged on the base in an opposite mode. The top arm comprises an arm main body, a suture needle for penetrating a suture line and puncturing the skin and a threading ring for stabilizing the suture line and pulling the suture line, the suture needle can be clamped in a sliding mode relative to the arm main body, the suture needle is arranged at the front end of the arm main body, and the threading ring is arranged on the side face of the arm main body; a shuttle rotating around the center is arranged on the base and used for being matched with the suture needle head to form a suture on the skin of a patient when the suture needle head punctures the skin of the patient; the device body is provided with a winding ring used for winding a suture line and a driving part used for controlling starting and stopping of the suture needle and the shuttle, the driving part is arranged in the base, and the driving part is provided with a starting and stopping switch used for controlling starting and stopping. The utility model provides a quick and convenient operation tool for suturing and fixing work after clinical catheterization, the risk is reduced, and the manpower is saved.

This utility model discloses a negative pressure closed drainage kit, including a negative pressure aspirator and a negative pressure drainage tube, as well as an integrated dressing assembly. The integrated dressing assembly is connected to the negative pressure aspirator via the negative pressure drainage tube. The integrated dressing assembly includes an internal drainage tube assembly and a medical dressing. The internal drainage tube assembly includes an external connector coaxially connected to the internal drainage tube, and the external connector is used for detachable connection with the negative pressure drainage tube. The medical dressing includes a tubular base dressing and multiple sheet dressings connected to the tubular base dressing. The tubular base dressing is nested and fixed to the outer periphery of the internal drainage tube. The external connector connects to the matching negative pressure drainage tube, and the internal drainage tube is directly fixed to the medical dressing, eliminating the need for suture fixation and improving operational efficiency. Depending on the size and shape of the wound, some sheet dressings can be partially or completely torn off for additional covering and packing. The core tubular base dressing and internal drainage tube are tightly connected and do not easily detach.

This invention provides a suturing device and method that improves the handling of sutures in robotic surgery. [Solution] The suturing device 30 includes a foldable body 40 having a first side 42 connected to a second side 44 by a hinge 50 at a hinge end 46. The first side 42 and the second side 44 each have a cantilever end 48 opposite the hinge end 46. The foldable body 40 is configured to move between an open position and a closed position. A suture retainer 80 is located inside the foldable body 40 and is configured to receive sutures. An opening 100 is formed in the wall of the second side 44 of the foldable body 40.

A surgical tool incorporates a suture guide with an anchor driver supporting an anchor where the anchor is maintained at a distance from the suture guide until release of a detent mechanism. Thereafter, the anchor is allowed to move into proximity to the suture guide, fixing a suture supported by the suture guide to a substrate, the entire procedure being achievable with a single hand.

The utility model discloses a kind of high-strength wear-resistant ton bags, it is related to ton bag technical field, including bag body and closure structure;Bag body four sides upper portion is uniformly distributed third reinforcing rib, bottom is formed by transverse first reinforcing rib and longitudinal second reinforcing rib intersection well grid, grid intersection point is linked with third reinforcing rib, constitute three-dimensional stress frame, when hoisting, top first pull rope is connected with third reinforcing rib, middle second pull rope auxiliary dispersion stress, cooperate reinforcing rib and outer protective layer, the suture fixation of tear-resistant reinforcing layer, so that load multilayer structure ordered transmission, improve overall bearing strength and tear resistance performance;When closing, first envelope and fourth envelope are folded towards and cover bag body top, second envelope is turned over with first envelope, third envelope is turned over with fourth envelope, button on second envelope is embedded third envelope buttonhole and form mechanical locking, while first envelope inner wall magnetite and fourth envelope groove inner magnet magnetism suction fit, double effect ensure bag body sealing, prevent material leakage.

The application relates to a full-suture meniscus fixator, an implanting device and a suture fixing method, relates to the technical field of medical instruments, and comprises a first fixing part and a second fixing part, a positioning hole is arranged in the middle of the first fixing part, the same positioning holes are arranged at the two ends of the second fixing part, an integral suture is arranged on one side of the first fixing part, one end of the suture away from the first fixing part is sequentially threaded through the positioning hole on the first fixing part and the two positioning holes on the second fixing part, and the suture is wound around the suture between the first fixing part and the second fixing part. The application has the effects of reducing the operation time, reducing the operation difficulty, and improving the operation safety.

The embodiments disclosed herein are breakaway suture constructs containing releasable locking connections and / or methods of assembly that allow a plurality of sutures, and / or suture ends to be attached or connected together along a portion of their length to form a spliced region that unifies the sutures or suture ends and prevent movement of a suture end relative to other suture end. The releasable connections allow the surgeon to easily manipulate the spliced suture ends with little or no force to result in the unified ends of the sutures to be separated without requiring cutting or severing of the individual sutures or the releasable locking connections.

The invention provides a suture line for manyule fixing and suturing, a fixing and suturing instrument and application, and belongs to the technical field of medical instruments. A circular ring is arranged at one end of the suture line, and more than one line knot is arranged on the suture line. The circular ring at the tail end of the suture is used for fixing the Munyun ring, so that the stimulation of the suture tail and the suture knot to the endometrium when the Munyun ring is connected through knotting and binding in the operation process is reduced, and the postoperative vaginal bleeding and bleeding are reduced. After the fixed stitching instrument is used for stitching a needle in the uterine cavity, the suture line is pulled until the line knot is embedded into the muscular layer or penetrates through the muscular layer to be fixed at a needle outlet point, so that the line knot plays a role in anchoring, and the Mune music is fixed in the uterine cavity. When the Munule is taken out, a hysteroscope operation is not needed again, and the Munule can be taken out only by clamping and pulling the Raman Munule ring according to a conventional method. When the suture is used for suturing and fixing Munule in an operation, the fixing effect is ensured, the operation time is shortened, the operation difficulty is reduced, the operation mode is simple and convenient, and the learning time of an operator is shortened.

This utility model relates to a conjunctival sac support sheet, comprising a light-transmitting support sheet body, the support sheet body having opposing outer and inner surfaces, and a plurality of first drainage holes provided on the support sheet body, the first drainage holes penetrating the support sheet body along the thickness direction and located in the edge region of the support sheet body. The first drainage holes not only have a stronger drainage function, but can also be used for suture fixation, allowing doctors to perform suture surgery to fix the support sheet in the conjunctival sac and prevent accidental dislodgement.

The invention relates to the technical field of drainage tubes, and discloses a suture-free fixed abdominal cavity drainage tube which comprises a tube body and further comprises a tube sleeve arranged on the tube body in a sleeving mode; the annular air bag I is fixed on the pipe sleeve; the second annular air bag is connected to the pipe sleeve through a third annular air bag and located below the first annular air bag. The outer edge of the third annular air bag is preset to be in a downward bent and vertical state, and the third annular air bag can be straight and in a circular ring shape through inflation. According to the peritoneal drainage tube fixed without suture, a traditional suture fixing mode is replaced with the annular air bag structure, suture-free fixing is achieved, pain and trauma caused by suture and suture removal are avoided, the pain of a patient is reduced, meanwhile, the workload of a doctor is reduced, and convenience of clinical application is improved.

A surgical instrument 1 for a valve repair surgery in an animal enables determination of the length of an artificial suture even when the tendinous cord length of a normal tendinous cord is not used as a reference. The surgical instrument 1 for a valve repair surgery in an animal comprises: a support part 20 which is rod-shaped and in which one-side end thereof in the longitudinal direction can abut a ventricle 56 of a heart 50 in an animal; and a suture holding part 30 which is provided at the other-side end of the support part 20, has three projections 32A, 32B, 32C on an end surface, and can abut a valve cusp 52 of the heart 50.

The utility model discloses a sewing-free anti-seepage peritoneal drainage tube which comprises a drainage tube body and further comprises a tube guiding mechanism, the tube guiding mechanism comprises a liquid suction tube part, a V-shaped notch, a rubber wrapping tube, a tube contracting part A, a tube contracting part B, a bent connecting tube, a hard tube, a rubber sealing plug and an air bag bag, and the tube body of the drainage tube body is provided with the tube guiding mechanism. When the drainage tube body carries the liquid suction tube part and the rubber wrapping tube to enter an abdominal cavity drainage position, the drainage tube mechanism can fully fill the rubber wrapping tube on the outer side of the drainage tube body with gas, so that the air bag wrapping position expands and protrudes to form a sphere-like air bag to form a retaining position in an abdominal wall drainage hole, and the drainage tube body can be prevented from slipping outwards; the problem of skin traction pain caused by suture fixing does not exist in the drainage tube body, the air bag bag protrusions are fully attached to tissue at the skin drainage wound, the fixing and leakage preventing effects are achieved, and the problem that the drainage tube body accidentally falls off is effectively solved.

The present invention provides a slender anchor for fixing sutures to tissue and a system for deploying the slender anchor. The slender anchor includes a first opening, a second opening, a wire passage extending from the first opening to the second opening, and a first wire embedding space extending axially. The first wire embedding space is connected to the first opening. The distal end of the suture enters the wire passage through the first opening and exits from the second opening to attach to the slender anchor; the extended end of the suture selectively switches between being accommodated in the first wire embedding space and being detached from the first wire embedding space. The slender anchor and system provided by the present invention not only reduce damage to tissue, but also further ensure the effectiveness of tissue repair.

Provided in the present application are a staple replacement apparatus, a tissue suturing system, and a staple replacement method therefor. The staple replacement apparatus comprises: an elastic member and two clamping members. The two clamping members are rotatably connected, and the clamping members are located on two sides of a rotation axis and are respectively a clamping end and a holding end. The clamping end is provided with an accommodating groove, a limiting groove, and a threading groove. The limiting groove is located at an end portion of the clamping end and is in communication with the accommodating groove. The elastic member is arranged between the two clamping members. Under the action of the elastic member, the clamping ends of the two clamping members are attached to each other. The accommodating grooves of the two clamping ends are in communication with each other to form an accommodating cavity, the limiting grooves of the two clamping ends are in communication with each other to form a limiting cavity, and the threading grooves of the two clamping ends are in communication with each other to form a threading cavity. When a spring section of a surgical staple assembly is placed in the accommodating cavity, a suture fixing portion of the surgical staple assembly is limited in the limiting cavity, and the threading cavity is in communication with a suture fixing hole of the suture fixing portion. Under the action of an external force applied to the holding end, the clamping ends of the two clamping members are separated to release the surgical staple assembly.

The utility model provides a suture line fixing plate to solve the problems that an existing suture line fixing device is complex in structure and inconvenient to take and use. A suture line fixing plate comprises a suture board base body, at least three sets of first elastic pieces and second elastic pieces are arranged on the suture board base body, gaps are formed between the first elastic pieces and the suture board base body and between the second elastic pieces and the suture board base body, the first elastic pieces are evenly distributed on the same circumference, and the second elastic pieces are evenly distributed on the same circumference. The first elastic piece is arranged outside the second elastic piece. Compared with the prior art, the suture plate has the advantages that the suture plate base body, the first elastic piece and the second elastic piece are of an integrated structure, and when the suture plate is used, a suture needle and a suture line are pressed tightly through the elasticity of the base material, so that the suture line is prevented from being knotted. When in use, the suture needle can be conveniently and directly taken out, and the suture line is unfolded.

The utility model relates to a capsular bag drag hook for cataract surgery, which comprises a drag hook, the drag hook comprises a first pull rod, a second pull rod integrally connected to one end of the first pull rod, a transition part integrally connected to the end, away from the first pull rod, of the second pull rod, and a third pull rod integrally connected to the end, away from the second pull rod, of the transition part. The sliding sleeve is arranged on the first pull rod in a sliding and sleeving manner; and the protection unit is arranged at one end, far away from the transition part, of the third pull rod. Compared with a traditional suture fixing method, the capsular bag structure for the cataract surgery has the advantages that the complexity of the surgery is greatly reduced, a user only needs to hook the capsular bag through the drag hooks and pull the capsular bag to a proper position, then the circular ring on the rear portion is moved to abut against the sclera edge, suture is not needed in the process, operation is simpler, more convenient and safer, and the capsular bag structure is matched with CTR for use, so that the operation cost is reduced. Transverse and longitudinal tension can be provided for the capsular bag of the dislocated crystalline lens, so that the positions of the capsular bag and the IOL are kept stable and can be maintained for a long time.

The application provides a wound suture device, which comprises a suture fixing assembly and a suture tightness adjusting assembly, the suture tightness adjusting assembly comprises a first bottom plate, a locking mechanism and an adjusting rod, the adjusting rod is connected with the suture fixing assembly through a suture, the adjusting rod is adapted to rotate axially along a first direction to make the suture in a tension state and rotate axially along a second direction to make the suture in a slack state. The adjusting rod is locked and unlocked through the locking mechanism, when the wound needs to be closed, the adjusting rod only needs to be rotated axially along the first direction to make the suture in the tension state; when the wound needs to be ventilated, drained, changed or observed, the adjusting rod only needs to be unlocked through the locking mechanism and rotated axially along the second direction to make the suture in the slack state. The wound suture device provided by the embodiment of the application can realize quick closing of a deep and large wound and simultaneously facilitate ventilation, drainage, change or observation of the wound.

A surgical access device includes a cannula body, an anchor, and a first suture retention mechanism. The cannula body includes a housing and an elongated portion extending distally from the housing. The elongated portion defines a longitudinal axis and a channel extending therethrough. The anchor is disposed in mechanical cooperation with the elongated portion of the cannula body and is longitudinally translatable relative to the elongated portion. The first suture retention mechanism extends laterally from the anchor. A suture-receiving channel is defined between a portion of the suture retention mechanism and a portion of the anchor.

The utility model discloses a preassembled three-loop sclera suture fixed posterior chamber intraocular lens which comprises a three-loop intraocular lens body, the three-loop intraocular lens body is provided with three loops, and a loop incisura is preset on each loop; one end of each sewing thread is connected to the loop incisura, and the other end of each sewing thread is connected to the sewing needle; the preassembling system comprises an injector for pushing the folded three-loop intraocular lens body into the human eyes; the intraocular lens has the advantages that the contact time of the intraocular lens with the eyelid margin and ocular surface flora is shortened, the risk of intraocular infection is reduced, and the prognosis of intraocular lens sclera suture fixation is improved; the risk that the artificial lens is damaged in the sclera suture fixation operation is reduced, and the postoperative visual quality of a patient is guaranteed; the duration required by the sclera suture fixation operation of the artificial lens is shortened, and the risk of related complications in the operation is reduced.

The present invention provides a method and apparatus for transvascular implantation of newly formed chordae tendineae. [Solution] A method and apparatus for transvascular implantation of artificial chordae tendineae are disclosed. A catheter advances through the mitral valve into the left atrium and left ventricle. A ventricular anchor is deployed from the catheter into the wall of the left ventricle, extending proximal through the catheter, leaving a ventricular suture attached to the anchor. A leaflet anchor is deployed with the leaflet suture extending proximal through the catheter to fix the mitral valve leaflet to the leaflet suture. The leaflet suture is fixed to the ventricular suture to limit the range of movement of the leaflet toward the left atrium. Also disclosed is a mitral valve leaflet restraint assembly that is assembled in its original location, having neopapillary muscle and neochordae tendineae.