121 results about "Stapled anastomosis" patented technology

The invention provides an anorectal anastomat with a function of selectively excising anorectal tissues. The anastomat comprises a handle assembly, an osculating assembly, a nail propping seat assembly, a screw rod assembly, a push rod assembly and a clutch structure, a first nail pushing piece and a second nail pushing piece which can be spliced to form a nail pushing piece of a circular tube structure are arranged in a nail bin sleeve in a sliding mode, a first straight push rod for pushing the first nail pushing piece and a second straight push rod for pushing the second nail pushing pieceare arranged in a fixed handle, and a clutch structure for controlling the movable handle to be linked with the first straight push rod and/or the second straight push rod is arranged in the fixed handle. When in use, only the positions of a first sliding block and a second sliding block of the clutch structure need to be adjusted, a movable handle pulled, selective clearance on one of the first straight push rod and the second straight push rod can be realized, then one of the first nail pushing piece and the second nail pushing piece is triggered to push the anastomosis nail, the purpose ofselectively excising mucous membrane tissues on anorectal dentate lines of a patient is achieved, and operation risks are effectively reduced.

The invention relates to the technical field of biomedical materials, and particularly provides a degradable magnesium alloy in-situ composite anastomotic nail and a preparation method thereof. The anastomotic nail is made of a composite structural material and mainly comprises two parts, wherein the inner part is composed of high-strength and good-plasticity Mg-Zn-Nd magnesium alloy, the outer part is composed of MgF2 playing a role in corrosion protection, and MgF2 is subjected to in-situ compounding to an outer layer of the Mg-Zn-Nd magnesium alloy anastomotic nail to form the anastomotic nail. The magnesium alloy composite material anastomotic nail has good plastic deformation capability and mechanical strength, slow degradation speed and excellent biological safety, meets the implantation requirement for the anastomotic nail in a body, can be degraded gradually in the body after a medical effect in the biological body is achieved, and avoids secondary operation for taking out thenail.

The invention discloses a medical anastomat detection device. The medical anastomat detection device comprises a conveying guide rail, an electric measuring contact, an electric measuring contact moving mechanism, a shooting device, a third die holder blocking mechanism and a turnover plate mechanism, wherein the electric measuring contact comprises a contact pedestal, a plurality of pairs of electrodes corresponding to nail grooves in an anastomat die holder are fixedly arranged at the top of the contact pedestal, the bottoms of the electrodes are all fixed in the contact pedestal, and the tops of the electrodes extend out of the contact pedestal. According to the medical anastomat detection device, by arranging the electric measuring contact, the electric measuring contact is matched with anastomosis nails in an anastomat to form an equivalent capacitance circuit or a switch circuit, the embedding integrity of the anastomosis nails in the anastomat can be detected by measuring the equivalent capacitance value or the state of the switch circuit, the detection is reliable, and the efficiency is high.

The invention discloses a nail bin assembly. The assembly comprises a nail bin body and anastomotic nails. The nail bin body comprises a top end surface, a nail pushing groove and nail cavities; and the anastomotic nails are positioned in the nail cavities, and each nail cavity penetrates the top end surface to form a nail outlet. The assembly is characterized in that: the height of the top end surface far from the nail pushing groove is lower than the height of the top end surface close to the nail pushing groove; and the outer side of the top end surface is provided with grooves with an outward opening. The nail bin assembly and a surgical instrument thereof can turn the anastomotic nails with the same size and shape into nail lines with different nail heights to be applied to tissues while cutting the tissues, so that the flow of tissue fluid at the target tissues is accelerated, the time for compressing the tissues to a specified height is effectively shortened, the operation timeis shortened, the situation of insufficient tissue squeezing is avoided, and the forming effect of the anastomotic nails is further ensured.

The invention discloses an anastomat convenient to disinfect, for closing surgical incision. The anastomat comprises a firing mechanism and a nail transmitting mechanism connected to the firing mechanism, wherein the nail transmitting mechanism comprises a nail guiding groove, a strip guiding assembly, a nail ejecting plate and a pushing spring; the rear end of the strip guiding assembly is pivoted with the rear end of the nail guiding groove through a pivoted rod; the strip guiding assembly comprises two guiding strips, a rear fixing block and a front fixing block, the rear fixing block is arranged between the rear ends of the two guiding strips, the front fixing block is arranged between the front ends of the two guiding strips, the front fixing block and the front end of the nail guiding groove are in clamping and fixation, the rear fixing block and the front fixing block limit the spacing of the two guiding strips, the external spacing of the two guiding strips is equal to the internal spacing of two nail feet of an endoscopic stapler cartridge, the upper end surfaces of the guiding strips and the nail crown of the endoscopic stapler cartridge are in sliding cooperation, and the outside surfaces of the guiding strips and the upper segment of the endoscopic stapler cartridge are in sliding cooperation; and the nail ejecting plate and the guiding strips are in sliding cooperation, the pushing spring is arranged between the nail ejecting plate and the rear fixing block, and the anastomat is convenient to disinfect.

The invention provides a biodegradable pure iron anastomosis nail containing a silver coating. The material components and proportions of the pure iron anastomosis nail comprise 99.98% to 99.99% of pure iron, 0.004% to 0.008% of Zn, 0.003% to 0.006% of Ca, and 0.003% to 0.006% of Mn. The pure iron anastomosis nail comprises an anastomosis nail rod body which hunches up from the middle portion, two ends of the anastomosis nail rod body transfer to form vertical nail bodies through fillets, and a nail point is arranged at the front end of each nail body. Due to the facts that the rod body hunches up from the middle portion, the front ends are provided with the nail points, and the vertical nail bodies transfer through the fillets, the anastomosis nail is suitable for an anastomat which is used for anastomosis of human tissue and organs, the nail bodies of the anastomosis nail are pressed to the middle through a pressing rod of the anastomat in the process of anastomosis, the human tissue and organs are sutured together, the function of anti-inflammatory and sterilization to anastomosis wound surface of the human tissue and organs is achieved through a layer of cupric ion coating which is evenly coated on the surface of the pure iron anastomosis nail, the human tissue and organs utilizing the pure iron anastomosis nail for the anastomosis are free from infection, the anastomosis nail is absorbed and degraded with union of the wound, and the anastomosis nail is beneficial for shortening of time of union and recovery of the wound surface.

The invention discloses an anastomat capable of reducing abrasion of a nail anvil frame, and belongs to the technical field of medical instruments.The anastomat is characterized by comprising an anastomat body, the right side of the anastomat body is rotationally connected with a rear handle, the left side of the anastomat body is fixedly connected with an assembly shell, and a nail pushing part is arranged on the inner wall of the assembly shell; the left side of the assembly shell is fixedly connected with an anastomosis component tube, the inner wall of the anastomosis component tube is provided with an annular nail bin, the inner wall of the nail bin is provided with anastomosis nails, and the inner wall of the anastomosis component tube is provided with a movable groove. According to the anastomat disclosed by the invention, by arranging the driving sleeve, when a medical worker enables the anastomat body to work and perform anastomosis, the driving sleeve can move towards the left side, the screw rod can rotate through the notch matched with the screw rod, the driven rod fixedly connected with the screw rod can synchronously rotate, and when the driven rod rotates, the driven rod can be located in the positioning rod to rotate through the rotating block matched with the rotating groove.

The invention relates to an intraoral skin anastomat which comprises a sheath shell, a pushing block, clamping pincers and an anastomosis nail. The sheath shell is a hollow cuboid strip, the upper endof the sheath shell is open, a cylindrical shaft is arranged at the end opening, and a spring catch is arranged on the inner center line. The pushing block is a cuboid strip, an isosceles triangle groove is formed in the lower end of the pushing block, a rectangular through hole-spring hole is formed in the middle section of the pushing block, and a spring is arranged in the spring hole; the pushing block is arranged in the sheath shell, and the spring catch is arranged in the spring hole. The clamping pincers achieve the opening and closing functions of the pincers with a sheath shell cylindrical shaft as the axis, pincer mouths are two sections of arcs, a groove with the arc section is formed in the inner side center line, a spring piece is arranged between pincer arms, the pincer armsare arranged in the isosceles triangle groove, and the tail ends of the pincer arms make contact with the waist line of the isosceles triangle groove. The two ends of the anastomosis nail are providedwith metal wires with the same curvature as the clamping forceps, and the outer diameter is the same as the inner diameter of the clamping forceps groove. The skin anastomat is suitable for anastomosis of wounds in the oral cavity and also suitable for anastomosis of narrow and deep wounds.

The invention provides a nail bin assembly and a medical anastomat comprising the same. The nail bin assembly comprises at least one nail belt and a plurality of protruding blocks, the nail belt comprises a nail belt body extending in the axial direction of the medical anastomat, the nail belt body is provided with at least one row of anastomosis nails sequentially arranged in the extending direction of the nail belt body, and the anastomosis nails are connected to the nail belt body through the connecting ends of the anastomosis nails; and the protruding blocks are in one-to-one correspondence with the anastomosis nails, the protruding blocks are located on the far end sides of the connecting ends of the corresponding anastomosis nails, and when the anastomat is fired, the connecting endsof the anastomosis nails make contact with the protruding blocks to disconnect from the nail belt body, so that the anastomosis nails are disengaged from the nail belt body. By the adoption of the nail bin assembly, the anastomosis nails are formed on the nail belt body, installation and replacement are more convenient, and the protruding blocks are arranged, so that the anastomosis nails can beseparated from the nail belt body conveniently.

The invention relates to the technical field of anastomats, and discloses an anastomat capable of discharging nails at a constant speed. The anastomat comprises a fixed handle, a nail pushing assembly and a nail seat assembly, a fixed shaft is fixedly installed between the two side walls of the fixed handle, limiting nuts are arranged at the two ends of the fixed shaft, guide grooves and clamping grooves are formed in the surfaces of the inner walls of the two sides of the front end of the fixed handle, and first rectangular installation holes are formed in the surfaces of the guide grooves; the nail pressing assembly is movably installed in the fixed handle, a nail bin assembly is fixedly installed at the bottom of the front end of the fixed handle, the nail seat assembly is arranged on the inner surface of the nail bin assembly, the nail pushing assembly is movably connected with the nail seat assembly, the nail seat assembly comprises a nail seat, an installation plate is arranged at the bottom of the nail seat, and anastomosis nail containing grooves are formed in the two sides of the exterior of the nail seat. A servo motor is arranged at the tail end of the nail seat to push the anastomosis nails to move, the purpose of discharging the nails at a constant speed is achieved, the process of manually triggering the anastomosis nails is better matched, and the wound suturing effect is improved.

The invention relates to an integrated glans cap and adjusting nut assembly, which is suitable for use with a disposable foreskin cutting and stapling apparatus, and is a surgical instrument for foreskin cutting and anastomosis for men due to excessive foreskin or phimosis. It includes a glans cover, a screw rod, an installation and positioning sleeve and an adjusting nut; the glans cover has a cover body, a glans head storage hole is arranged at the front end of the cover body, a staple forming groove is arranged on the rear side of the cover body, and a shim ring is arranged on the inner side of the staple forming groove The installation slot, the rear end of the glans cap is provided with a connecting short rod, and the connecting short rod is provided with a connecting screw hole; the front part of the screw rod is provided with a glans cap connecting rod, and the front end of the glans cap connecting rod is provided with a glans cap connecting bolt, which is connected with the glans cap connecting bolt. The connecting screw holes arranged in the connecting short rod are matched to fix the screw rod on the back of the glans cap; the front part of the glans cap connecting rod is plastic-packaged with an installation positioning sleeve; The ring is installed in the installation groove of the indicator ring; the screw rod is installed with the adjusting nut.

The invention discloses a skin anastomat with a medicine spraying device, which comprises a main body mechanism, a nail storage mechanism, a medicine spraying mechanism and a limiting plate, wherein the main body mechanism comprises a fixed shell, a movable handle, a connecting piece, a sliding groove, a rubber pad, a first telescopic guide rod, a reset spring, an extrusion plate and a screw, the sliding groove is formed in the fixed shell, the left end of the movable handle is connected with the first telescopic guide rod, an anastomosis nail is arranged on the left side of the connecting plate, a movable plate is arranged on the front side of the anastomosis nail, the pressing spray head is connected with the connecting spray head through a drainage pipeline, and the end, which is away from the drainage pipeline, of the pressing spray head is connected with a water inlet pipeline. According to the skin anastomat with the medicine spraying device, the medicine spraying box is arranged, a worker can extract liquid medicine in the medicine spraying box by extruding the pressing spray head, and the extracted liquid medicine makes contact with the affected part of a patient through the drainage pipeline and the connecting spray head, so that hemostasis or disinfection can be conducted on the affected part, and the functionality of the device is enriched conveniently.

The invention relates to a pneumatic endoscope anastomat. The pneumatic endoscope anastomat comprises an executing head, an air cylinder, a manual control valve and a control wrench, wherein the executing head is used for cutting and suturing soft tissue; the driving end of the air cylinder is connected to the executing head; the manual control valve is connected to the air cylinder and is used for switching the flow direction of air flow communicating with the air cylinder; and the control wrench is arranged corresponding to the manual control valve and is used for controlling the manual control valve. Due to the fact that the executing head, the air cylinder, the manual control valve and the control wrench are arranged, after the air cylinder is connected with an air source, the manual control valve can be triggered through the control wrench, the air source in the air cylinder switches the flow direction, the driving end of the air cylinder is controlled to move forwards or backwards, and air cylinder actions are transmitted to the executing head to provide power for blade cutting and anastomotic nail discharging and suturing. After execution, the air flow direction of the air cylinder can be switched, and the driving end of the air cylinder retreats. The pneumatic endoscope anastomat is simple in structure and easy to control.

The invention provides a degradable metal anastomosis nail and a preparation method thereof, and belongs to the technical field of medical instruments. The degradable metal anastomosis nail is composed of a suture nail body and a degradable organic polymer surface layer, wherein the suture nail body is formed by processing a medical degradable zinc alloy wire, and the degradable organic polymer surface layer is attached to the surface of the zinc alloy suture nail body. The suture nail body is in a shape similar to a staple. The degradable metal anastomosis nail can be naturally degraded in aliving body, and can be degraded in the body within a certain time after the medical effect is achieved.

The invention provides an anorectal anastomat having functions of medicating and treating. The anorectal anastomat comprises a handle assembly, a matching and cutting assembly, a nail propping seat assembly, a push rod assembly and an annular kit, wherein the handle assembly comprises a fixed handle and a movable handle which is rotatably arranged on the fixed handle; the matching and cutting assembly comprises a nail bin sleeve which is connected with the fixed handle, a nail bin which is arranged in the nail bin sleeve in a sliding manner, a nail pushing piece and an annular knife arranged on the nail pushing piece; the nail propping seat assembly comprises a nail propping seat which is arranged corresponding to the nail bin sleeve; the push rod assembly comprises a straight push rod which is arranged in the fixed handle in a sliding manner and is linked with the movable handle, so that while in use, only placing the annular kit storing a corresponding medicine in the nail bin is needed, after the movable handle is pulled, while an anastomosis nail is pushed by the nail pushing piece, the nail pushing piece can drive the annular knife to cut down the annular kit, so that during evisceration, medication can be quickly and timely performed on the tissue excision position, adverse phenomena including postoperative pain, edema, capillary hemorrhage and the like of a patient are reduced, and postoperative complications are prevented.

The invention discloses a cavity anastomosis device, and relates to the field of medical instruments. The device has the advantages that the involution mode of an anastomotic stoma is optimized; suture materials are not left on the healed anastomotic stoma; and the risk of sequelae is reduced. According to the specific scheme, the device comprises an anastomosis ring and an anastomat body; the anastomosis ring comprises two anastomosis sub-rings; anastomosis nails and anastomosis holes are formed in the two anastomosis sub-rings in a matched mode; the anastomat body comprises two anastomat sub-bodies which are movably connected; each anastomat sub-body comprises an annular forceps head with an opening and a forceps handle connected with the annular forceps head; and the forceps handles jointly form a handheld device. According to the cavity anastomosis device, anastomosis with everted anastomotic stoma can be achieved, and the risk of sequelae is reduced; the anastomosis ring of the cavity anastomosis device is made of absorbable biological materials; suture materials are not left on the anastomotic stoma after healing; tissue foreign matter reaction is reduced; and the cavity anastomosis device has the advantages of being safer, lower operation cost, simple structure and good using effect.

The invention discloses a disc transmission device with an automatic binding machine for an anastomat, and relates to the technical field of automatic binding machines, the disc transmission device comprises a bottom plate, the top of the bottom plate is provided with a nail bin, the inner wall of the nail bin is connected with a nail box in a clamped mode, and the top of the bottom plate is fixedly connected with a rotating motor; an output shaft of the rotating motor is fixedly connected with a rotating disc, a supporting plate is fixedly connected to the top of the bottom plate, a transmission device is arranged at the top of the supporting plate, horizontally-distributed anastomosis nails are arranged at the top of the transmission device, the transmission device comprises a linear vibration motor, and the linear vibration motor is fixedly connected with the top of the supporting plate, and the output shaft of the linear vibration motor is fixedly connected with a vibration bridge seat. According to the invention, the limiting ring is arranged, when anastomosis nails rotate along with the rotary disc in the containing groove, the limiting ring and the containing groove form a closed space, the anastomosis nails are limited, and the situation that the stapling efficiency of the stapler is affected due to the fact that the anastomosis nails fall off from the containing groove is avoided.

The invention provides an execution assembly of an endoscopic cutting anastomat. The execution assembly is characterized in that a nail bin frame is divided into a first type of nail bin frame and a second type of nail bin frame; when the endoscopic cutting anastomat executes the operation with the same anastomosis length and the first type of clamping thickness, the first type of nail bin frame and a nail bin for installing first type of anastomosis nails are adopted in a nail bin assembly; and when the endoscopic cutting anastomat executes the operation with the same anastomosis length and the second type of clamping thickness, the second type of nail bin frame and a nail bin for installing second type of anastomosis nails are adopted in the nail bin assembly. According to the executionassembly, the technical scheme that when the endoscopic cutting anastomat executes the operation with the same anastomosis length and the different clamping thicknesses, the same nail bins are installed in the nail bin frames is achieved, the specification number of the nail bins is reduced to three specifications from more than ten specifications, the nail bins of various specifications can adoptthe same color, and the technical effect of remarkably reducing the machining cost, the inventory backlog cost, the management cost and the use cost of the nail bins is achieved.

The invention relates to an anorectal stapler for hemorrhoidectomy. The anorectal stapler is provided with a head portion extending forwards in the first direction, wherein the head portion is provided with a clamping assembly clamping haemorrhoids tissue in the second direction, an anastomosis nail moving in the third direction to nail the haemorrhoids tissue and a cutter moving in the fourth direction to cut off the haemorrhoids tissue. The fourth direction is roughly perpendicular to the first direction, and the cutter comprises a first cutter section roughly extending in the first direction and a second cutter section extending out of the front end of the first cutter section in a bent mode. By means of the anorectal stapler, the haemorrhoids tissue can be conveniently cut in a segmented mode, and the pain of a patient cannot be greatly increased.

The invention provides an intestinal anastomotic stoma isolating device. The intestinal anastomotic stoma isolating device comprises an inner drainage bag and an anastomat, a first opening is formed in the first end of the inner drainage bag, and a second opening is formed in the second end of the inner drainage bag; the first opening of the inner drainage bag is an elastic contraction opening, a traction line is arranged on the second opening of the inner drainage bag, and a traction hook is arranged on the traction line; the anastomat comprises an instrument body, an internal fixation anastomosis nail bin head, an intestinal tract anastomosis nail bin head, a nail abutting seat and a percussion device. The intestinal anastomotic stoma isolating device can prevent pollutants from leaking into the abdominal cavity through the anastomotic stoma, and a protective stoma does not need to be arranged.