589 results about "Anastomosis coupler" patented technology

The invention relates to the field of surgical medical appliances, in particular to a linear cutting anastomat with double security mechanisms, which can be used for surgical sewing and cutting while loading linear cutting elements. The linear cutting anastomat comprises a closing security mechanism, a triggering security mechanism, a left side plate, a partition plate, a driving plate, a liner, a right side plate, a shell, a closing handle, a triggering handle component, a left support plate and a right support plate; the linear cutting anastomat can load or unload the linear cutting elements; the closing security mechanism comprises a push button, an ejector pin seat, a first pin, a closing security component, a torsional spring and an ejector pin; the closing security component is connected with the torsional spring via the first pin, and a hook on the closing security component stops movement of the partition plate by the aid of torsion of the torsional spring; the triggering security mechanism comprises a spring, a second pin and a triggering security block; and the triggering security block is connected with the spring via the second pin, and a hook on the triggering security block stops movement of the driving plate by the aid of spring force of the spring.

The invention relates to a disposable circumcision and anastomosis device, which belongs to medical equipment, and is especially suitable for circumcision and anastomosis of males due to prepuce or phimosis. Including the driving device of the nail anvil assembly, the fixing device of the staple bin, the driving device of the pushing plate, the return spring of the pushing plate, the cutting indicating device, the fixed handle and the movable handle; the driving device of the nailing seat assembly includes the glans cover, the knife ring, the screw, Adjusting nut, adjusting nut cover and adjusting nut pin; staple cartridge fixing device includes staple cartridge, staple cartridge cover and staple cartridge cover pin; push piece transmission device includes ring knife, push piece, push piece push seat, connection block, transmission block , safety block, handle connecting piece and handle connecting pin; the push piece is installed in the magazine cover, the push piece return spring is set at the back of the push piece, the front end of the push piece return spring is against the inside of the staple case, and the rear end is against the inside of the staple case. The push piece pushes the front end of the seat; the cutting indicating device includes a window, a pointer and a pointer spring.

The invention relates to a laparoscopic stapler, which includes an adapter, a nail cartridge assembly and a control system; the adapter includes: a main body shell; a rotating shell; an identification push rod; an identification adapter; There is a grating; when the staple cartridge assembly is installed on the adapter, the identification push rod is pushed to move, the identification push rod pushes the identification adapter to move, and the identification adapter pushes the identification to move; the staple cartridge assemblies with different suture lengths have different tail end lengths , and the staple cartridge components with different suturing lengths are installed on the adapter to push the recognition push rod to move at different distances; the photoelectric switch recognizes the grating on the recognition part, and provides the recognition signal to the control system, and the control system is based on the photoelectric switch. The signal determines the suture length of the staple cartridge assembly. The aforementioned laparoscopic stapler can identify the suturing length of the staple cartridge assembly. The medical staff can confirm whether the installed staple cartridge components are correct according to the identification result of the control system.

The invention discloses an electric anastomat and a control system thereof. The electric anastomat comprises an assembly recognition module, a position detection module and a control module, wherein the assembly recognition module is used for generating an effective signal of recognition when a cutting assembly is normally connected with an anastomat body; the position detection module is used forgenerating an effective signal of an initial point when the cutting assembly moves to the initial point; the control module is used for controlling the cutting assembly to execute cutting anastomosisoperation according to a first triggering signal output by a triggering switch after receiving the effective signal of recognition and the effective signal of the initial point. According to the electric anastomat and the control system thereof, whether the cutting assembly is normally connected with the anastomat body or not is judged through the assembly recognition module, whether the cuttingassembly reaches the initial position of a cutting stroke or not is judged through the position detection module, and the control module can respond to the first triggering signal output by the triggering switch after receiving the effective signals output by the assembly recognition module and the position detection module, so that misoperation or instrument damage caused by the triggering actionwhich is implemented under the condition that the cutting assembly is not installed or not correctly installed is prevented.

The invention discloses a disposable arc cutting anastomat. The disposable arc cutting anastomat comprises an anastomat body, wherein a connecting block is arranged at one end of the anastomat body, apush rod is connected to the connecting block through a guide sleeve, an arc splint is fixed to one end of the connecting block, a nail propping seat is welded and fixed to one end of the upper surface of the arc splint, and a positioning nail bin is arranged at the other end of the arc splint; and a handle is arranged on the lower surface of one end of the anastomat body, a firing rod is arranged on the lower surface of the anastomat body, and a rotating plate is connected to the front surface of the handle through a rotating rod. Through the arrangement of the rotating plate, a sliding block, a spacing slot, a second spacing block, a first spacing block and a mounting block, the situation that the firing rod is pulled by mistake to cause movement of a positioning pin in the positioningnail bin can be avoided, and increase of the use safety of the equipment is facilitated; and through the arrangement of a protection silica gel block, a groove and a clamping block, the surface of oneside of the nail propping seat is convenient to cover, and the situation that the surface of one side of the nail propping seat is directly exposed to air to be susceptible to outside bacteriologicalcontamination can be avoided.

The invention provides a magnetic force compressing anastomosis ring, comprising a pair of magnetic rings respectively accommodated in the fractured ends of two tissues to be anastomosed, wherein the two magnetic rings are sucked to tightly clamp the free margins of the fractured ends of the two tissues to be anastomosed. The two magnetic rings of the magnetic force compressing anastomosis ring are respectively placed in the fractured ends of the stomach (intestine), and pressure is tightly applied to the two fractured ends to realize anastomosis under the action of magnetic force, so that occlusion tissues are gradually necrotic because of ischemia, meanwhile, occlusion tissues at fractured ends of the stomach (intestine) gradually heal up through an inflammatory reparative process. Along with the gradual necrosis of the occlusion tissues, the two rings are close to each other gradually, and the magnetic force is further enhanced, so that tight anastomosis is maintained, and the necrosis of the occlusion tissues is sped up. The anastomosis is firm and tight, the operation is simple, the healing process is quick, scars are small, surfaces of wound are smooth, and the gastrointestinal cavity is unobstructed. The anastomosis ring can effectively reduce complications after anastomosis operation such as anastomosis leakage, stenosis and the like, and can guarantee good alimentary tract function after operation, thus being the most advanced alimentary tract anastomosis machinery at present.

The invention relates to an accurate closed space indicating device for an anastomat and a stitching instrument and an indication method of the indicating device, which are suitable for the anastomat and the stitching instrument. The indicating device comprises a support, a screw compartment, a nail compartment support, a support guiding pin, a casing, an indicating label, a support positioning hole, an indicating block, an indicating block pointer, a knob, an adjusting lead screw and a fixed handle, wherein the indicating block is mounted in the nail compartment support, the nail compartment is mounted at the front part of the nail compartment support; the adjusting lead screw is mounted at the rear part of the nail compartment support; the knob is mounted at the rear part of the adjusting lead screw; the nail compartment support is positioned into the support through the support guiding pin; the support positioning hole is formed on the support; the support is fixed with the casing; an indicating window is arranged on the casing; and the casing is matched and fixed with the fixed handle. At the time of closing, the fixed handle is held, the knob is rotated to drive the adjusting lead screw, the adjusting lead screw drives the nail compartment support to be closed toward the front part of the support, the nail compartment support drives the indicating block to slide in the support, the front part of the nail compartment support is closed, and the indicating block pointer accurately points to the closing scale line of the indicating window on the indicating window.

Aiming at the defects of the conventional tendon rupture repair process, the invention discloses a material for making a tendon anastomat, the tendon anastomat made of the material and a making method of the tendon anastomat. The material consists of 69 to 90 percent of polylactic acid, 8 to 30 percent of polycaprolactone and 0.5 to 2 percent of silicon oil and is prepared by adopting a melt blending modification technology; and the tendon anastomat is manufactured by adopting an injection molding technology. The invention also discloses the tendon anastomat. When the tendon repair operation is implemented, only the ruptured tendons are butted, the anastomat is wrapped at the joint of the ruptured tendons, the tendons are locked by using a self-locking mechanism, and the tendon repair operation can be completed. The tendon anastomat has the advantages of quick butting, efficient fixation, low tensile stress of tendon fractures, immediate exercise after the operation and the like, and can effectively improve the clinical operation efficiency, reduce the tendon adhesion risk and improve the treatment effect.

The invention relates to a nail cartridge base of a disposable intracavity incision anastomat. The nail cartridge base is a matched device of the disposable intracavity incision anastomat for arranging lines on the intracavity tissue and is provided with a circular-arc-shaped nail cartridge base body, wherein a nail cartridge installing groove is arranged on the inner side of the circular-arc-shaped nail cartridge base body. A cutting blade sliding groove is arranged on the circular arc face of the circular-arc-shaped nail cartridge base body, a cutting tool apron sliding groove is arranged on the outer side of the cutting blade sliding groove, nail cartridge fixing grooves are arranged on two sides of the circular-arc-shaped nail cartridge base body, a nail abutting-against seat positioning pin hole is arranged at the back end of the circular-arc-shaped nail cartridge base body, and nail abutting-against seat installing and positioning platforms are arranged on two sides of the back end of the circular-arc-shaped nail cartridge base body. A nail cartridge base locking step is arranged at the back end of the cutting tool apron sliding groove. Due to the fact that the nail cartridge base adopts the circular-arc-shaped nail cartridge base body, two side faces of the back portion of the nail cartridge base are provided with the nail abutting-against seat installing and positioning platforms, two side faces of a nail abutting-against seat and two side faces of the nail cartridge base are smooth, a puncture outfit sealing ring is not damaged by a cutting tool apron in the osculating tissue using process, and an osculating operation is ensured to be performed smoothly.

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 an endoscope surgical cutting anastomat capable of being quickly assembled, which comprises a machine body, a closing handle is hinged to the surface of the machine body, a supporting pipe is fixedly connected to the left side of the machine body, and a telescopic pipe is inserted into the left side of the supporting pipe; an adjusting pipe is arranged on the left side ofthe telescopic pipe, a nail abutting base is fixedly connected to the left side of the adjusting pipe, a detachable linear cutting element is fixedly connected to the front face of the nail abutting base, a first connecting plate is fixedly connected to the left side of the telescopic pipe, and a worm is rotatably connected to the inner wall of the first connecting plate, and the worm penetrates the first connecting plate and extends to the outside of the first connecting plate. By arranging the worm, an operator rotates the worm, the worm drives the worm wheel, the worm wheel drives the second connecting plate, the second connecting plate drives the adjusting pipe, and the adjusting pipe drives the nail abutting seat to rotate, so that the nail abutting seat is positioned more accurately.

The invention discloses an adjustable skin incision anastomat comprising two guide rails, wherein one guide rail is provided with a first base which can slide inside the guide rail, the first base is provided with a fixed rod, and the fixed rod is hinged with an adjustable rod; while the other guide rail is provided with a second base which can slide inside the guide rail, and the second base is provided with an adjustable seat which can fix the adjustable rod. The adjustable skin incision anastomat has the advantages of avoiding any traumatic operation to a wound and combining the adhesive force generated by the self-adhesive guide rails at two sides as well as the pull force between the guide rials to anastomose skins, instead of being directly contacted with the wound.

The invention discloses an anastomat with an automatic reset safety mechanism, for gastroenterology department, and belongs to the technical field of medical instruments. The anastomat comprises an operating handle, a rod body, a nail head assembly, a fixing assembly, a connecting assembly and a transmission rack, wherein a mounting sleeve is mounted at one end of the operating handle in a threaded mode, and a holding rod is fixedly mounted at the bottom of the operating handle. According to the anastomat, an inner sleeve shaft is mounted in a rod body penetrating into the operating handle, a safety reset spring is mounted outside the inner sleeve shaft, when the anastomat is used normally, an operating rod is directly pressed, the operating rod can drive a movable clamp to move, certain extrusion is generated on the safety reset spring, and the safety reset spring is compressed. At the moment, the inner sleeve shaft can drive the transmission rack to move, the nail head assembly is controlled to work through the gear meshing effect, when operation is not needed, the safety reset spring can automatically drive the structure to reset due to the reset effect of the safety reset spring, the good safety reset effect is achieved, manual adjustment reset is not needed, and the operation efficiency is improved.

The invention discloses a clutch safety device of an electric endoscope anastomat. The device comprises a clutch change-over unit, a clutch driving unit and the clutch safety unit; the clutch change-over unit achieves clutch switching of the anastomat between the percussion, close and open states and the left-right transmission state under the action of the clutch driving unit; the clutch safety unit comprises a safety sliding block, a guide rod and a clutch safety circuit board, the safety sliding block can be arranged on the guide rod in a sliding mode, a conductive elastic piece is arrangedon the upper portion of the safety sliding bock, a slideway is arranged on the clutch safety circuit board, the slideway is internally provided with a safety electrical contact end of the anastomat in the percussion, close and open states and a safety electrical contact end of the left-right transmission state, a driving hinge pin is arranged on the lower portion of the safety sliding block, thedriving hinge pin is connected with the clutch driving unit, and under the drive of the clutch driving unit, electrical switch of the anastomat in the two states is achieved. The invention further discloses the electric endoscope anastomat. Accordingly, consistent clutch control over mechanical engagement and electrical control is achieved, and safety and reliability are achieved.

The invention provides a suturing assembly of an anastomat and the anastomat. The suturing assembly of the anastomat comprises an installation base, a nail anvil base, a nail anvil assembly, a shell, a nail pushing assembly, a nail bin, a telescopic bin, a support assembly, a push rod, a screw assembly, a limiting assembly, a reset spring, an isolation assembly and a fixing screw. According to the invention, the relative positions of the telescopic bin and the push rod are adjusted, and the telescopic bin and the push rod are fixed together through the screw assembly; after the distance is changed, the push rod is not influenced to push the nail pushing assembly; the distance between the nail anvil assembly and the nail bin can be adjusted according to the thickness of tissue to be sutured in use, so that the moving distance of the nail bin is relatively short in suturing, and the deviation of the position of the nail bin in suturing is prevented; when the nail anvil assembly is not installed in place, an isolation block can be ejected to be blocked between the nail anvil assembly and the nail bin, so that the nail bin is prevented from making contact with the nail anvil base; and after the nail anvil assembly is installed, the isolation block is pressed downwards, and the movement of the nail bin cannot be hindered, so that the damage caused by misoperation due to no installation of the nail anvil base is avoided.

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 handheld linear cutting anastomat and an assembly thereof. The handheld linear cutting anastomat comprises an anastomat main body, a handle, a third magnet, a positioning needle push button and an adjusting button, wherein an arc-shaped groove is formed in the lower end of the anastomat main body, an arc-shaped handle is arranged on a rotating rod, the handle is arranged at the lower end of the anastomat main body, the groove is formed in the right side of a percussion handle, the positioning block is arranged on a nail abutting seat frame, a screw is arranged on the nail abutting seat frame in a penetrating mode, the adjusting button is arranged at the right end of the anastomat main body, and the connecting frame is arranged in the anastomat main body in a penetrating mode. According to the handheld linear cutting anastomat and the assembly thereof, the limiting block is unscrewed to make contact with the arc-shaped handle, the angle of the arc-shaped handle is properly adjusted through the rotating rod, the auxiliary holding effect is conveniently achieved when the anastomat main body is operated, the stabilizing effect of the anastomat main body during operation is enhanced, and the limiting block is screwed to be detached from the rotating rod through a thread, and the arc-shaped handle is taken down from the rotating rod for maintenance and cleaning treatment.

The invention discloses an electric endoscope anastomat with a battery capable of dissipating heat. The electric endoscope anastomat comprises a handle, a heat conduction plate, a steering control mechanism and a straight pipe, wherein a fixed handle is fixed at the bottom of the handle; the heat conduction plate penetrates through the handle; a battery pack is arranged in a first groove; the first groove is formed in the upper end surface of the handle; a sealing cover is arranged on the upper side of the battery pack; the sealing cover is fixed on the handle through a bolt; the right side of the handle is rotationally connected with an adjusting shell; the upper side of the adjusting shell is rotationally connected with a first gear; the steering control mechanism is fixed at the top of the adjusting shell; the steering control mechanism is located on the right side of the first gear; the straight pipe is fixed on the right side of the adjusting shell; and a nail bin assembly clamp is arranged at the right end of the straight pipe. According to the electric endoscope anastomat with the battery capable of dissipating heat, the battery pack can conduct heat on the battery pack to the heat conduction plate in the operation process, and then the heat conduction plate dissipates the heat into external air, so that the heat dissipation effect is conveniently achieved.

The invention relates to a disposable anorectal selective cutting anastomat, and belongs to medical apparatuses. The disposable anorectal selective cutting anastomat is particularly anorectal hemorrhoids cutting anastomosis. The disposable anorectal selective cutting anastomat comprises a selective abutting pin base assembly, a selective pin cabin component, a percussion driving device, an indicating safety device, a fixed handle component, a rotary handle component and an adjusting nut assembly; the selective abutting pin base assembly comprises a pin base cap, an abutting pin base, a cushion knife ring, an abutting pin base connecting plate, a support sleeve, a connecting plate pin, a pull rod and a positioning pin; the percussion driving device comprises an annular knife, a push sheet, a push sheet push plate, a push sheet push plate base, a straight push rod, a straight push rod pin, a movable handle spring, a movable handle, a movable handle cover, a push plate pin and a push sheet connecting pin; the indicating safety device comprises a viewing window, an indicating pointer, an indicating pointer spring, an adjusting block, a guide screw, a compression spring, an indicating pointer pull hook and a fine tuning safety boss. The adjusting nut assembly comprises a screw rod, an adjusting nut blocking ring, an adjusting nut pin, an adjusting nut and a fine tuning nut.

The invention provides an automatic return device for an electric anastomat, the electric anastomat comprises a support and an operating handle, the support is fixed in the operating handle, and the automatic return device comprises a motor, a gear, a gear rack, an automatic return switch, a return elastic component and a return push button. The return elastic component is fixed between the support and the return push button, the gear rack is in contact with the return push button, the motor is connected with the gear rack through the gear, the return push button is in contact with the returnelastic component, and the automatic return switch is fixed in the operating handle. The automatic return device can complete automatic return of the instrument at the end of a percussion stroke, andis safe and reliable without being influenced by factors such as incomplete return and the like by means of a control mode of the automatic return switch by resetting of the return spring.

The invention discloses a medical polyurethane pancreaticojejunostomy device material and a preparation method thereof. The material comprises a prepolymer or a semi-prepolymer prepared by polymerization reaction of polyisocyanate and polymer polyol, a chain extender, a defoamer, an antibacterial agent and a reinforcing agent, wherein each component accounts for a certain mass fraction. The method comprises the following steps: (1) dehydration of polymer polyol; (2) preparation of the prepolymer or the semi-prepolymer; (3) addition of auxiliaries; (4) chain extension of the prepolymer; (5) first vulcanization; (6) second vulcanization for obtaining a casting type polyurethane elastomer material. The invention further discloses a medical anastomat prepared by utilizing the casting type polyurethane elastomer material, the anastomat is in the shape of a circular ring, and four titanium screws are uniformly distributed on the outer peripheral wall of the circular ring. The casting type polyurethane elastomer material is an elastomer material with high ductility and high tear strength, has no physiological toxicity, has high softness, high ductility, excellent medium resistance and the like, and can be widely applied to the field of medicine.