90 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.

According to the anastomosis nail releasing device and the suturing device, a driving assembly, a needle pushing plate and a containing cavity used for containing anastomosis nails in the anastomosis nail releasing device are sequentially stacked, that is, the needle pushing plate serves as a boundary, so that structures between the driving assembly and the containing cavity do not interfere with each other, on one hand, no other structures exist in the containing cavity, and on the other hand, no other structures exist in the containing cavity; therefore, the containing cavity can contain larger anastomosis nails, the larger anastomosis nails can penetrate through thick human tissue, even if the containing cavity can contain anastomosis nails of various sizes, the application range of the product is widened, and the product can be applied to more operation scenes. On the other hand, no other structure is arranged in the cavity for installing the driving assembly, so that enough space is provided for installing the driving assembly with a complex structure or a large size, the driving assembly has strong driving force, and the anastomosis nail driven by the driving assembly can more effectively penetrate through the human tissue; therefore, effectiveness and reliability of product sewing are guaranteed.

The present invention relates to an end effector and a medical device for firing staples into a formed state. The staple has a staple body and staple legs provided at both ends of the staple body. It is characterized in that it includes a staple cartridge assembly for accommodating the staple and an anvil assembly docked with the staple cartridge assembly. The staple cartridge assembly has a staple cartridge opening oppositely arranged with the anvil assembly, and the anvil assembly is provided with a staple pit docked with the staple cartridge opening. During firing, the staple pit abuts against the staple leg to cause it to deflect and bend relative to the staple body to form a staple. After forming the staple, the projection of the staple leg on the anvil assembly falls into the staple cartridge opening. This end effector and medical device can cause the staple legs of the staple to be misaligned to form a staple, and ensure that the staple legs of each formed staple are fully bent, resulting in more reliable suturing and better anastomosis effect.

An apparatus includes a jaw body, an anvil surface defined by the jaw body, and an elongate slot extending through the anvil surface and along a longitudinal axis of the jaw body. The apparatus further includes a first longitudinal row of staple forming pockets disposed on the anvil surface and configured to form a plurality of first staples such that first legs of each formed first staple are laterally aligned with each other. The apparatus also includes a second longitudinal row of staple forming pockets disposed on the anvil surface laterally outwardly of the first longitudinal row of staple forming pockets relative to the longitudinal axis, and configured to form a plurality of second staples such that second legs of each formed second staple skew laterally away from a second crown of the respective formed second staple.

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 discloses an anastomat anastomosis nail independent gasket which comprises nail foot fixing pieces, foot connecting pieces, a ring piece and a fixing sleeve, a plurality of foot connecting pieces are distributed on the edge of the ring piece, the outer end of each foot connecting piece is integrally connected with the nail foot fixing piece, each nail foot fixing piece is provided with a suturing nail, and the nail foot fixing pieces are fixedly connected with the fixing sleeve. The nail foot fixing pieces are mutually independent, and one side of the ring piece is integrally connected with a fixing sleeve. The nail foot fixing device is reasonable in design, each nail foot fixing piece distributed on the ring piece is a nailing part of a suturing nail, the pain intensity caused by interlocking connection and dragging between the nail foot fixing pieces in the dismounting process is effectively reduced, meanwhile, the width of the foot connecting pieces located between the nail foot fixing pieces and the ring piece is small, and the nail foot fixing pieces are not prone to falling off. And the time required for decomposition and separation is relatively shortened, and the adhesion surface with the skin tissue is reduced.

The invention discloses an anastomosis nail preparation method and an anastomosis nail with an acid-resistant repairable drug-loaded coating, and belongs to the technical field of medical instruments. The preparation method of the anastomosis nail comprises the following steps: S1, preparing a magnesium alloy anastomosis nail matrix from a magnesium alloy wire; s2, a porous oxide layer is prepared on the surface of the magnesium alloy anastomosis nail base body; s3, depositing corrosion inhibition function drug molecules in holes of the porous oxide layer; and S4, the magnesium alloy anastomosis nail base body is placed in a reaction kettle, and a hydrotalcite coating with anti-inflammatory drug molecules is formed on the surface of the magnesium alloy anastomosis nail base body through a hydrothermal method. The degradation rate of the anastomotic nail can be controlled, and anastomotic stoma healing is facilitated.

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.

The utility model relates to the technical field of surgical instruments, in particular to a disposable three-row nail anorectal anastomat which comprises an anastomat body, anastomosis nails and nail anvils, the anastomosis nails are arranged at the end of the anastomat body, and the nail anvils move to be close to or away from the anastomosis nails in the length direction of the anastomat body through a center shaft. A smearing mechanism for storing medical lubricating oil is arranged on the periphery of the anastomat body, the smearing mechanism can slide in the length direction of the anastomat body and smear the lubricating oil on the outer surface of the anastomat body, the smearing mechanism comprises a smearing ring, and the smearing ring is arranged on the periphery of the anastomat body in a sliding mode. An annular discharging groove is further formed in the contact face of the smearing ring and the anastomat body. According to the anorectal anastomat, the smearing ring is arranged on the periphery of the anastomat body, the smearing ring can smear lubricating oil on the outer surface of the anastomat body in the moving process, convenience and rapidness are achieved, and waste is reduced.

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 utility model provides a percussion piece, a nail bin assembly and a surgical anastomat, the percussion piece comprises at least one wedge-shaped part, each wedge-shaped part comprises a nail pushing part and a nail cutting part, the nail cutting part is located on the near-end side of the nail pushing part and protrudes upwards relative to the nail pushing part, a nail cutting surface is arranged on the side, facing the far-end direction, of the nail cutting part, and the nail cutting surface is located on the near-end side of the nail pushing part and protrudes upwards relative to the nail pushing part. The nail cutting face of at least one nail cutting part is provided with a protruding structure, and the protruding structure comprises at least one protruding part. The protruding structure is arranged on the nail cutting part of the percussion piece, the nail cutting capacity of the percussion piece is improved, the situation that the anastomosis nails cannot be completely disengaged from the nail belt body in the operation process is avoided, and therefore the operation effect is effectively improved.

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 discloses a circular cutting anastomat applied to a low rectum, and belongs to the technical field of medical instruments. The circular cutting anastomat applied to the low rectum comprises a nail bin, an anvil block and a percussion handle, and further comprises a driving part, the driving part comprises an elastic assembly and a plurality of driving blocks, each driving block is provided with a plurality of plug pins, each plug pin is inserted into one nail groove and abuts against an anastomosis nail in the nail groove, and the elastic assembly abuts against the driving blocks; the control part comprises a driving shaft, a rotating disc and a plurality of magnets, each magnet corresponds to one driving block, the magnetic poles of every two adjacent driving blocks are opposite, when the elastic assembly is compressed, each magnet is attracted to the corresponding driving block, and when each magnet is separated from the corresponding driving block, the elastic assembly drives the driving blocks to move towards one side of the anvil block. According to the circular cutting anastomat applied to the low rectum, the intestinal tract anastomosis quality can be improved, and anastomotic fistula is prevented from occurring after anastomosis of the intestinal tracts on the two sides.

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 present disclosure relates to the technical field of biomedical materials, more particularly to a degradable magnesium alloy in-situ composite anastomotic staple and a preparation method thereof. The anastomotic staple, with a composite structure, is mainly composed of Mg—Zn—Nd magnesium alloy with high strength and good plasticity (internal part), and corrosion-resistant MgF2 (external part), and is formed by in-situ synthesis of MgF2 with the outer layer of Mg—Zn—Nd magnesium alloy anastomotic staple. The magnesium alloy composite anastomotic staple provided by the present disclosure has good plastic deformation ability and mechanical strength, a low degradation rate, and a high biosafety level, which can meet the in-vivo implantation requirements. In addition, it can gradually degrade in vivo after achieving the medical effects in vivo, avoiding a second operation for removal.

The present application provides a double-annular anastomosis device, comprising: an anastomosis excitation assembly, comprising: an anastomosis ring and an excitation ring embedded in one end of the anastomosis ring and capable of moving axially thereof; an annular excitation track for the excitation ring to move is provided in the anastomosis ring; an anastomosis staple is fixedly connected to one end of the excitation ring that enters the annular excitation track and when not excited, the anastomosis staple is hidden in the annular excitation track; an anastomosis abutment assembly, comprising: an abutment ring; an annular abutment track is provided at one end of the abutment ring corresponding to an annular opening on the excitation track that is relatively far away from one end of the excitation ring; when the excitation ring moves along the annular excitation track toward the abutment ring, the anastomosis staple gradually enters the abutment track and is finally clamped with the bottom of the abutment track, so that the anastomosis ring and the abutment ring are tightly fixed.

A device is used to close or occlude a cavity or opening within a body. The device can include an implant configured to be deployed within the cavity, configured to be expanded or moved against a wall portion of the cavity, and configured to twist at least a portion of the cavity when the implant is rotated. Thereafter, a securing element, staple, suture, or other fastener can be implanted in the gathered tissue to hold the tissue in the gathered state, thereby occluding the opening of the cavity. The implant can remain in the cavity or be removed.

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.

An endostapler has a stapler body with distally-situated first and second stapler units, each of which may pivot from a stowed position oriented parallel to the stapler body to a deployed position oriented at an angle to the stapler body. Each stapler unit may open to receive tissue, and close upon the tissue to cut and staple it. When stapling, parallel adjacent rows of staples are applied adjacent the cut, and the staples are offset between the rows such that the staples in each row are adjacent the spaces between staples in the adjacent row. A third stapler unit has jaws situated about the first and second stapler units, and may close upon and staple tissue situated between the deployed first and second stapler units.

The utility model relates to a rotatable and continuous firing anal fistula anastomat, which comprises an outer sleeve, a push tube, a handle assembly, anastomat nails and a plurality of guiding blocks. The push tube is arranged in the outer sleeve, the rear end of the push tube extends out of the outer sleeve and is provided with a bevel gear, and a flat groove is formed in the push tube. The handle assembly is provided with a trigger and a one-way clutch gear mechanism. The anastomat nails comprise a screw and a pair of guiding blocks, and the two guiding blocks are arranged on the rear side of the screw. A plurality of anastomat nails are arranged in the push tube. When the trigger is pulled to rotate forward, the trigger drives the push tube and each anastomat nail to rotate forward, and the anastomat nail moves forward along the spiral feeding channel through the guiding block. When the trigger is reset to rotate reversely, the trigger drives the one-way clutch gear mechanism to enter a separated state, so that the trigger cannot drive the bevel gear. The anastomat can be preloaded with a plurality of anastomat nails, the anastomat nails can be continuously fired, and one anastomat can treat and block a plurality of fistulas.