54 results about "Stapled anastomosis" patented technology

A high-performance near-pure zinc alloy, a preparation method therefor and a use thereof, relating to the technical field of zinc alloys. The alloy component is that the content of Zn is greater than or equal to 99.5%, and the remaining trace alloy elements include at least two of the following 14 elements: Mg, Mn, Li, Cu, Ag, Ca, Sr, Fe, Zr, Ti, Al, C, Ga, and Si. The alloy has the yield strength ≥ 250 MPa, the tensile strength ≥ 320 MPa, the elongation ≥ 25%, the mechanical property change during one year of room-temperature storage ≤ 5%, the maximum bending force ≥ 2 kN, the stress corrosion sensitivity factor ≤ 15%, the size of corrosion pits after 60 days of immersion ≤ 15 μm, and the standard deviation of the size of corrosion pits ≤ 3 μm. The alloy is suitable for the preparation of biodegradable stents, bone implant devices, medical staplers or anastomotic nails for intestines, blood vessels or nerves, vascular clamps, guided bone or tissue regeneration membranes, heart valve protheses, dura mater repair membranes, soluble bridge plugs and fracturing balls for oil drilling, zinc alloy die castings, electroplated zinc materials, building zinc materials, battery-grade zinc, printing-grade zinc, and zinc-based brazing alloys.

The utility model discloses an anastomat nail box base, and relates to the field of medical instruments, the anastomat nail box base comprises a base body, the top of the base body is rotatably provided with a nail abutting plate used for clamping tissue of a patient, the bottom of the nail abutting plate is fixedly connected with a cutter, and the middle of the base body is provided with a broken groove used for reducing tissue damage; contact plates are inserted in the positions, on the two sides of the broken groove, of the base body, a plurality of first communicating grooves are formed in the tops of the two contact plates, and second communicating grooves are formed in the positions, located in the first communicating grooves, of the upper end face of the base body; an interaction cavity communicated with the multiple second communicating grooves is formed in the base body, a synchronous plate used for fixing nail bodies is movably arranged in the interaction cavity, a nail box is arranged at the position, located at the bottom of the synchronous plate, in the interaction cavity in an inserted mode, release openings are formed in the positions, located in the multiple second communicating grooves, of the top of the nail box, and multiple pop-up anastomosis nails are arranged in the multiple release openings. The nail box can fix the nail body in multiple directions to prevent looseness, and meanwhile the nail box is easy to install and operate and convenient to replace.

The utility model relates to a device for preventing empty percussion of a surgical instrument, which comprises an anastomat body and a nail abutting seat assembly arranged at a front end opening of the anastomat body, the nail abutting seat assembly comprises an anvil head used for forming anastomosis nails and a connecting shaft sleeve arranged on the rear side of the anvil head, an infrared detection device is arranged in the anastomat body, and the connecting shaft sleeve is arranged on the rear side of the anvil head. The infrared detection device is connected with a control circuit of the anastomat body, an infrared transceiver is arranged on the infrared detection device, and when the infrared transceiver receives reflected infrared rays, the control circuit disconnects the drive motor circuit; and when the infrared transceiver cannot receive the reflected infrared rays, the control circuit closes the driving motor circuit. The electric anastomat has the advantages that the coating capable of absorbing infrared rays is arranged on the outer wall of the connecting shaft sleeve, the light source of the infrared transceiver and the signal receiver are arranged in the anastomat body, whether the anvil block head is installed in place or not can be detected under the condition that the strength and the function of the structure are not affected, and mistaken percussion operation of the electric anastomat is prevented.

The utility model relates to a prepuce cutting stitching instrument, in particular to a prepuce cutting stitching instrument capable of accurately positioning, which comprises a shell, a guide tube, a sliding tube and the like, the top of the shell is connected with the guide tube, the sliding tube is slidably connected in the guide tube and extends into the shell, and the left side and the right side of the guide tube are respectively provided with an opening. And the sliding tube extends out of the guide tube through the opening. According to the prepuce circumcision knife, the prepuce can be subjected to circumcision through the cooperation of the upper annular blade and the lower annular blade, meanwhile, the push block can downwards push the anastomosis nails in the nail grooves, the anastomosis nails can be bent to suture the prepuce under the action of the suture grooves, the prepuce can be accurately positioned through the positioning nails, the overlong prepuce can be effectively cut, and the prepuce can be prevented from being damaged. The frenum is prevented from being too short or misplaced, so that a good cutting effect is achieved, and the cutting position can be accurately positioned by using simple steps through single-person operation.

The utility model relates to a surgical stitching instrument and an end actuator thereof, the end actuator comprises a first clamping component, a second clamping component and a push broach piece, the second clamping component is movably connected with the first clamping component and can be matched with the first clamping component to clamp tissue, the first clamping component is provided with a feed groove extending in the axial direction and a nail bin provided with anastomosis nails, and the second clamping component is provided with a push broach piece. The feed groove divides the opposite surfaces of the first clamping component and the second clamping component into a first part and a second part which are located on the two sides of the feed groove, the width of the first part is larger than that of the second part, and the nail bin is located on the first clamping component where the first part is located. According to the end executor, the nail bin is arranged on the single side of the feeding groove, the function of precisely suturing tissue needing to be reserved is achieved, meanwhile, the tissue to be cut off can be efficiently cut off, and resource waste cannot be caused; by reducing the width of the second part, the end effector is particularly suitable for treating the situation that the excision range of the tissue to be excided is narrow, and the flexibility and adaptability of surgical operation are remarkably improved.

The utility model provides an anastomat which comprises a nailing structure, a plurality of fixing structures and a plurality of fixing structures, the nailing structure comprises a plurality of anastomosis nails, and the anastomosis nails are distributed in the target direction of the nailing structure; the cutting assembly comprises a cutting knife body and a cutting knife head, a blade part is arranged on the cutting knife head, and the cutting knife head is movably connected to the cutting knife body; the driving mechanism is connected with the cutting knife body; during cutting, the driving mechanism drives the cutting assembly to move in the target direction; and meanwhile, the cutting tool bit generates angular displacement in the target direction. The angular displacement of the cutting tool bit improves the cutting effect, the target cutting tissue is prevented from being torn under the pressure of the cutting tool bit, the damage to the blade part in the cutting process is reduced, and the safety in the operation process is improved.

This disclosure details a staple cartridge, a staple cartridge assembly, and an anastomosis device, all related to the medical device technology field. A feed groove of the staple cartridge described in this disclosure is designed to extend in the first predetermined direction. Multiple staple slot groups are distributed on both sides of the feed groove along the slot width direction. The number of staple slot groups on each side of the feed groove differs, resulting in different anastomosis stability and widths on both sides of the feed groove along the slot width direction.This can specifically enhance the stability of the anastomosis on the side with a greater number of staple slot groups and can meet the differentiated anastomotic requirements of the tissue-retaining and tissue-discharging ends. Not only does this improve the anastomosis effect on the tissue-retaining end, but it also reduces the amount of bleeding at the tissue-retaining end. Simultaneously, it can also address the issues of anastomosis overuse and the waste of anastomotic staples on the tissue-discharging end. Figure for summary: 1.

The application belongs to the technical field of medical instrument design and production, and provides a degradable zinc alloy anastomosis nail and a preparation method thereof. The anastomosis nail is formed by adding trace amounts of magnesium, lithium and silver into zinc as a matrix to form an alloy, pouring to obtain an alloy ingot, and then performing hot extrusion and cold drawing on the ingot to obtain zinc alloy wire, and annealing between passes. After the zinc alloy wire is formed, sandpaper roughening, phosphating, mechanical micro-roughening are sequentially performed to build a surface pretreatment layer, a Zn-phytic acid complex anchoring layer, a chitosan ion barrier layer crosslinked by gentian violet and a polylactic acid / magnesium carbonate composite controlled release outer layer are sequentially formed on the pretreated surface, the alloy degradation is synergistically regulated by complex anchoring, ion barrier and outer layer slow release, the metal ion burst release is reduced, the local corrosion product accumulation is inhibited and the acid-base fluctuation is buffered, and the postoperative support and gradual absorption requirements are met.

The application provides a preparation method of a magnesium alloy anastomosis nail and belongs to the technical field of medical materials. The preparation method comprises the following steps: subjecting a magnesium alloy material to melting and casting treatment to form a magnesium alloy ingot; subjecting the magnesium alloy ingot to homogenization heat treatment and extrusion treatment to form a magnesium alloy rod material; subjecting the magnesium alloy rod material to drawing treatment to form a magnesium alloy wire material; subjecting the magnesium alloy wire material to segmented rolling treatment to obtain a magnesium alloy wire material with multiple strengthening regions; and forming the magnesium alloy wire material subjected to the segmented rolling treatment into multiple magnesium alloy anastomosis nails with strengthening parts. The magnesium alloy wire material is subjected to segmented strengthening treatment by using a non-alloying method, the size of the wire material strengthening region can be controlled, the magnesium alloy anastomosis nail suitable for anastomosing tissues with different hardness and different thickness can be customized, the strength and hardness of the anastomosis nail can be improved, the requirement of penetrating part of a relatively thick or hard tissue can be met, and abnormal deformation in different degrees can be avoided.

1. The name of the design product: staple cartridge. 2. The use of the design product: used for installing on surgical instrument, used for containing anastomosis staple. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: design 1 perspective view 1. 5. Design 1 is designated as the basic design.

The present application belongs to the technical field of medical devices, and discloses a blood vessel end-to-end telescopic intraluminal anastomat, which comprises a main handle, a guide rod connected to the front end of the main handle, and an anastomosis head installed at the front end of the guide rod; an anastomosis assembly, which comprises a curved nail forming structure and a plurality of anastomosis nails, the plurality of anastomosis nails are arranged on the anastomosis head in a circumferential direction, the curved nail forming structure is arranged outside the blood vessels to be anastomosed, the anastomosis nails pass through the blood vessel wall from inside to outside of the blood vessels to be anastomosed, and enter the curved nail forming structure to complete bending and fixation; the blood vessels to be anastomosed comprise a first blood vessel and a second blood vessel, the second blood vessel extends into the first blood vessel, the anastomosis nails are arranged across the edge of the broken end of the second blood vessel, so that one side of the nail foot of the anastomosis nail passes through the first blood vessel and the second blood vessel, and the other side of the nail foot passes through the first blood vessel. The present application can realize rapid and uniform circumferential fixation of the broken end of the blood vessel, shorten the anastomosis time, improve the anastomosis quality, and is suitable for the fields of vascular surgery, organ transplantation and microsurgery, and is especially suitable for anastomosis reconstruction of the superior and inferior vena cava of liver transplantation.

The invention belongs to the technical field of design and production of medical instruments, and provides a degradable zinc alloy anastomosis nail and a preparation method thereof. According to the anastomosis nail, zinc serves as a matrix, trace magnesium, lithium and silver are added to form alloy, and an alloy casting rod is obtained through pouring; carrying out hot extrusion and cold drawing on the cast rod to obtain a zinc alloy wire, and annealing between passes; after the zinc alloy wire is formed, abrasive paper coarsening, phosphate formation and mechanical micro coarsening are sequentially carried out to construct a surface pretreatment layer, and a Zn-phytic acid complexing anchoring layer, a gentian violet crosslinked chitosan ion barrier layer and a polylactic acid / magnesium carbonate composite controlled-release outer layer are sequentially formed on the pretreated surface. Alloy degradation is regulated and controlled through coordination of complexing anchoring, ion barrier and outer layer slow release, metal ion burst release is reduced, local corrosion product accumulation is inhibited, acid-base fluctuation is buffered, and the requirements for postoperative supporting and gradual absorption are met.

The invention relates to the technical field of medical instruments, in particular to an adjustable intracavity anastomat. Comprising a rotating shell arranged on a gun handle, the rotating shell is rotationally connected with a swing shell, the swing shell is fixedly connected with a lower supporting plate, a nail bin is arranged in the lower supporting plate, the nail bin is provided with two sets of nail pushing plates which are symmetrically distributed, anastomosis nails are installed on the nail pushing plates, and a pushing block used for extruding the nail pushing plates is slidably connected into the lower supporting plate. Two sets of guide plates which are symmetrically distributed are fixedly connected into the swing shell, the guide plates in the same set are jointly connected with sliding blocks in a sliding mode, and the swing shell is rotationally connected with threaded rods which are in threaded connection with the adjacent sliding blocks. The threaded rod rotates to drive the sliding block and the fixing shaft to move, so that the position of the nail bin is changed, the distance between the nail bin and the nail anvil is adjusted, it is guaranteed that anastomosis nails on the nail bin are aligned with corresponding grooves in the nail anvil, and the tissue suturing process of a patient is facilitated.

This invention relates to the field of wound protection membrane technology, and in particular to a staple cartridge pad membrane for controlling the tightness of anastomosis. It includes a membrane body, on the left and right sides of the end face facing the staple cartridge, with staple placement structures on each side. Each staple placement structure includes multiple staple placement protrusion groups arranged sequentially along the width of the membrane body. Each staple placement protrusion includes multiple protrusions located on the same straight line. The height of the protrusions in each staple placement protrusion group is consistent, while the height of the protrusions in different staple placement protrusion groups is different. This invention, by setting placement protrusions of different protrusion heights on the surface of the membrane body, can achieve different degrees of anastomosis tightness at different anastomosis positions, thereby achieving a gradient effect of loose inner and tight outer anastomosis, resulting in an ideal healing effect of the anastomosis section. The placement protrusions can also compress the anastomotic tissue within the staples, improving the fixation effect of the anastomosis.

The invention relates to a staple cartridge structure and an anastomat with the staple cartridge structure, the staple cartridge structure comprises a cartridge body, the cartridge body comprises an upper surface, two end parts, an outer side wall connected with the two end parts, an anastomosis surface, a slot and a plurality of staple cavities; the anastomosis surface is positioned on the upper surface and is divided into left and right anastomosis areas; the slot is positioned between the two anastomosis areas, longitudinally extends downwards from the upper surface and horizontally extends between the two end parts; each nail cavity is provided with an opening face, and anastomosis nails are installed in each nail bin. A plurality of cartridge slots extend downwardly from any one of the stapling zones, and each cartridge slot extends horizontally from the slot toward the outer sidewall. The anastomat comprises the nail bin structure and a nail abutting seat, and the nail bin structure and the nail abutting seat are connected with each other. The staple cartridge groove is formed in the anastomosis surface of the cartridge body, so that internal liquid is discharged out of the anastomat, the anastomosis reliability of the staple cartridge structure is improved, and the risk that tissues are crushed can be reduced.

The split type nail bin assembly comprises a nail bin, a nail bin seat, a push block piece and a nail anvil, a plurality of groups of guide grooves used for placing anastomosis nails are formed in the nail bin, nail pushing blocks used for pushing the anastomosis nails are arranged in the guide grooves, and an elastic component used for enabling the nail bin to adapt to the tissue thickness is arranged on the top surface of the nail bin; a plurality of groups of nail bins are detachably arranged on the two sides of the nail bin seat, and a blocking component is arranged at the front end of the nail bin seat; the pushing block piece is detachably arranged at the front end of the cutting knife, moves along with the cutting knife and pushes the nail pushing block to move in the guide groove; the end of the nail anvil is hinged to the nail bin seat, and nail pits corresponding to the anastomosis nails are formed in the nail anvil. The split combined type nail bin is adopted, part of the nail bins can be increased or decreased according to actual clinical requirements, needed end holes are reserved, operation innovation is facilitated, personalized anastomosis requirements are met, harm is reduced, the clinical anastomosis effect is improved, and the use cost is reduced.

The utility model discloses an anastomat and an anastomosis nail pushing mechanism thereof, and relates to the medical technical field, the anastomat comprises a shell, one side of the shell is provided with a handle, one end of the handle is fixedly connected with a nail anvil, one side of the top of the handle is provided with a locking mechanism, and the inner side of one end of the handle is inserted with a nail bin. Through cooperation of an elastic piece and a clamping block, the nail bin can be rapidly inserted and preliminarily fixed, basic guarantee is provided for follow-up operation, a first moving plate stably moves along a sliding groove, elastic tension storage and stable movement of the device are ensured through the combination of the action of a second fixing rod and a second tension spring, and in the reset process, through cooperation of an inserting rod and a positioning hole, the device is reset stably. Final firm inserting connection is achieved, the stability of the nail bin is greatly improved through the double-locking function of the clamping block, disassembly and replacement are more convenient and faster through the modular design, the requirements for efficient and flexible operation are met, and the reliability of the device is enhanced through the overall structure.

The present application provides a kind of staple cartridge assembly and medical anastomat, the staple cartridge assembly includes: staple belt and support, the staple belt includes staple belt body, is installed to the side of the support, the staple belt body includes the first surface away from the support;Staple cartridge cover, the first surface of the staple belt body is at least partially covered the first surface of the staple belt body, the staple cartridge cover includes the second surface opposite the first surface of the staple belt body, there is first gap between the first surface of the staple belt body and the second surface of the staple cartridge cover;Firing block, movably set in the bottom of the staple cartridge cover, and can be moved along the axial direction of the anastomat, the firing block includes cutting nail part, the height of the highest point of the cutting nail part is higher than the height of the first surface of the staple belt body.The present application is by being arranged first gap between the first surface of the staple belt body and the second surface of the staple cartridge cover, so that the cutting nail part of firing block is higher than the first surface of the staple belt, facilitate cutting nail part drive anastomotic nail and separate from the staple belt.

The embodiment of the invention provides a staple cartridge assembly and an anastomat, the staple cartridge assembly comprises a staple cartridge, the staple cartridge is configured to contain anastomosis staples, and the staple cartridge is provided with a staple cartridge end face; the patch comprises a first body part and a first connecting part, the first body part covers the end face of the nail bin, and a first connecting hole is formed in the surface of the first connecting part in a penetrating mode; the tubular connecting piece is connected with the nail bin, a propelling device is arranged in the tubular connecting piece, and the propelling device is configured to enable the anastomosis nails to penetrate through the end face of the nail bin; the tubular connecting piece is sleeved with the patch connecting piece, the patch connecting piece is configured to enable the patch to be stably connected with the nail bin, and an avoiding part is arranged on the outer side wall of the nail bin; the first connecting part is configured to accommodate at least part of the patch connecting piece so as to reduce a gap between the first connecting part and the nail bin, and the situation that surface wrinkles of the patch affect sewing and recovery of an anastomotic stoma under the action of external force is avoided.

The invention provides a tube type intestinal tract anastomat for gastrointestinal surgery, and belongs to the field of medical equipment. Comprising a machine body, a machine base and a sleeve, a guide pipe is fixedly connected to the outer surface of the right end of the machine base, a rotating base is fixedly connected to the inner side of the guide pipe, a driving rod is rotationally connected to the inner surface of the rotating base, and an anastomosis assembly is arranged on the outer side of the driving rod and comprises an adjusting rod in threaded connection with the right side of the driving rod. By arranging the anastomosis assembly, the first clamping plate and the second clamping plate can be attached more tightly under the action of thrust, the two ends of the intestinal tract are anastomosed through the first clamping plate and the second clamping plate, and the first clamping plate and the second clamping plate are fixed and limited in cooperation with anastomosis nails, so that the first clamping plate and the second clamping plate can be kept in a stable clamping state; and meanwhile, the risk that the first clamping plate and the second clamping plate deviate due to intestinal tract movement can be reduced to a certain degree, and then the convenience and flexibility of intestinal tract anastomosis operation can be effectively improved.

The invention provides a percussion piece, a nail bin assembly and a surgical anastomat, the percussion piece is used for the nail bin assembly of the surgical anastomat and can be driven to move in the axial direction of the surgical anastomat, and at least one row of anastomosis nails arranged in the axial direction are arranged in the nail bin assembly; the percussion piece comprises a body part and at least one nail pushing part, the nail pushing part is at least partially located on the far end side of the body part, the upper surface of the nail pushing part is provided with a nail pushing face, and the nail pushing face is provided with at least one limiting part; wherein each nail pushing part corresponds to a row of anastomosis nails, and when the percussion piece moves towards the far end to drive the anastomosis nails, the limiting part at least partially acts on the anastomosis nails. The limiting part is arranged on the far end side of the percussion piece, the anastomosis nail in the forming process is guided and limited, transverse deviation of the anastomosis nail under the action of external force is compensated, and the operation effect is effectively improved.

The present application relates to the technical field of medical devices, in particular to a drug-loaded anastomosis nail processing technology, which comprises the following steps: slotting or drilling is performed on a metal wire by a laser cutting device, and the end of the metal wire is cut into a pointed end structure as a drug-loaded anastomosis nail base; the obtained drug-loaded anastomosis nail base is cleaned; the cleaned drug-loaded anastomosis nail base is fitted and installed on a spraying assembly, and a spraying solution containing an antibacterial drug and a polymer carrier is used to spray the drug-loaded anastomosis nail base under the condition that the spraying assembly drives the drug-loaded anastomosis nail base to rotate; the obtained sprayed drug-loaded anastomosis nail base is formed into a U-shaped nail on a nail forming tool, and the U-shaped nail is the drug-loaded anastomosis nail. The present application is provided with a drug-loading groove on the anastomosis nail, and the drug is sprayed into the drug-loading groove. When the anastomosis nail is used, the drug is continuously released through the nail foot of the drug-loaded anastomosis nail, and the wound healing is accelerated.

The application discloses a kind of staple cartridge assembly and surgical instrument for surgical instrument, surgical instrument includes end effector, and end effector includes staple cartridge seat and the resistance to nail seat of rotation connection with staple cartridge seat;Staple cartridge assembly includes staple cartridge body and multiple anastomosis nails, anastomosis nail is pushed out from nail cavity along Z axial direction and moves towards resistance to nail seat when being fired, and anastomosis nail includes nail crown, first nail leg and second nail leg, and nail crown is arranged in arc shape;When anastomosis nail is in forming state, the projection of first nail leg in Z axial direction is tangent or substantially tangent with first arc line, and the projection of second nail leg in Z axial direction is tangent or substantially tangent with first arc line.Make first nail leg and nail crown, second nail leg and nail crown, in Z axial direction, substantially relative, so that the tissue being clamped by anastomosis nail is simultaneously subjected to pressure on both sides in Z axial direction, so that the effect of being clamped to tissue is better.Thereby the incision of cut tissue part is relatively tightly sutured, and the probability that tissue incision bleeds and leaks is reduced.

This invention discloses a staple cartridge assembly and a surgical instrument. The staple cartridge assembly includes a staple cartridge body with a cutting groove dividing it into two parts. Each part includes a staple exit surface with two rows of staple cavities arranged longitudinally, designated as a first row and a second row. Multiple anastomotic staples are disposed within each staple cavity, with the staple crowns arranged in an arc shape. Each staple cavity in the first row is arranged along a first arc, and each staple cavity in the second row is arranged along a second arc. The distance between the endpoints of the first and second arcs in the lateral direction is less than or equal to 0.5 mm, and the radii of the first and second arcs are greater than or equal to 1.5 mm and less than or equal to 8 mm. By optimizing the arrangement of the staple cavities to reduce the lateral width of the staple cartridge assembly, the width of the jaw assembly is reduced, facilitating the jaw assembly's entry into the body through the gap between adjacent ribs, thus simplifying surgery and reducing patient discomfort.

This invention relates to a Chinese-style esophageal anastomosis device, belonging to the field of medical devices. This invention only performs anastomosis, without cutting, which reduces the average tension at the anastomosis site, decreasing the risk of anastomotic damage. It also increases the thickness of the anastomosis site, allowing for longer longitudinal sutures, resulting in a more secure and stable anastomosis. The device has a simple structure, is easy to operate, improves surgical efficiency, and reduces the incidence of postoperative anastomotic leakage. The invention includes a nozzle, a body, and a power supply. Its key feature is that a joint is provided between the nozzle and the body; the nozzle, joint, body, and power supply are sequentially fixedly connected; the joint has a corrugated tube structure and is capable of twisting; the nozzle contains a staple storage device; the nozzle has multiple staple holes; the staple storage device is detachably equipped with staples corresponding to the staple holes; the body contains a staple pushing device; and the body has a switch.

The present application relates to the field of medical devices, in particular to a preloaded reinforcing sheet and a staple cartridge assembly for a stapler. The preloaded reinforcing sheet is provided with a group of protruding structures, the protruding height of the group of protruding structures is 0.1-1.5 mm, to provide a new preloading method for the anastomotic reinforcing sheet. The structure and shape of the preloaded reinforcing sheet are improved at the physical level. The preloaded reinforcing sheet and the staple cartridge arm are fixed, and the anastomotic staples are stably constrained in the staple groove. In the scene of using the stapler to clamp the tissue but not firing the stapler, or in the process of releasing the preloaded reinforcing sheet, the preloaded reinforcing sheet is extruded by the tissue and the staple cartridge arm of the stapler, so that the reinforcement of the anastomotic port changes from "passive covering" to "active adaptation". The reinforcing sheet naturally extends and adapts to the tissue along the tissue tension direction when stressed, realizes dynamic stress dispersion, improves the tear resistance of the material in the hydrated state, and also does not affect the stapling effect of the anastomotic staples due to the wrinkles formed by extrusion.

The utility model relates to an automatic anastomosis nail conveying device, and belongs to the technical field of conveying, the automatic anastomosis nail conveying device comprises a rack, a vibration disc and a conveying channel, the vibration disc is arranged on the rack, the conveying channel is connected with the vibration disc, the conveying channel comprises a conveying block and a pressing plate, the conveying block is provided with a conveying groove, the conveying groove is communicated with the vibration disc, and the pressing plate is connected with the conveying block. The anastomosis nails move into the conveying groove from the vibration disc, and the pressing plate is arranged on the conveying block and located above the conveying groove. The anastomosis nail conveying device has the beneficial effects that the anastomosis nails are limited in multiple directions through cooperation of the groove walls on the two sides of the conveying groove and the pressing plate, and the position stability of the anastomosis nails in the conveying groove can be guaranteed even if the vibration disc vibrates during operation.

The present invention relates to the technical field of staplers, and in particular, to an anastomotic stoma reinforcing assembly apparatus and a stapler assembly for minimally invasive surgery. Said apparatus comprises a reinforcing sheet assembly, a first reinforcing sheet support assembly, a second reinforcing sheet support assembly, and a staple cartridge assembly. The reinforcing sheet assembly is mounted at an upper portion of the staple cartridge assembly. The first reinforcing sheet support assembly is arranged inside the reinforcing sheet assembly. The first reinforcing sheet support assembly and the second reinforcing sheet support assembly cooperate to fix the reinforcing sheet assembly on the staple cartridge assembly. The lower end of the first reinforcing sheet support assembly is in clamped connection with the staple cartridge assembly. The upper end of the first reinforcing sheet support assembly is in clamped connection with the second reinforcing sheet support assembly. The present invention can not only ensure the stable connection between the reinforcing sheet assembly and the staple cartridge assembly, but also staple the upper and lower reinforcing sheets into the tissue by means of anastomotic staples, thereby improving the strength of the wound, avoiding bleeding and leakage of the wound, and reducing postoperative complications. The integrated connection between the reinforcing sheet and the endoscopic stapler assembly facilitates operation and reduces application defects caused by the falling, wrinkling, and twisting of the reinforcing sheet.

The utility model provides a staple cartridge assembly, an end effector and a surgical stapler. According to the staple cartridge assembly provided by the invention, the guide part on the supporting piece is matched with the guided part on the staple pushing piece, so that the staple pushing piece can move according to a certain track, and the staple cutting part can accurately cut off the connection between the anastomosis staple and the connecting part. Meanwhile, the movement track of the nail pushing piece cannot deflect or be unstable due to factors such as different percussion forces or interference of other external forces, it is guaranteed that the nail pushing piece moves along a fixed track, influences of other external forces are reduced, then it is guaranteed that the anastomosis nails can accurately penetrate through tissue according to a preset path, the nailing accuracy is improved, and the anastomosis effect is improved. And unnecessary damage to surrounding healthy tissues is avoided. In addition, the guide part on the supporting piece is matched with the guided part on the nail pushing piece, it can be ensured that the nail pushing piece pushes the anastomosis nail in the fixed direction, component force in other directions does not exist, and the nail pushing process is more labor-saving and smoother.