56 results about "Endoscopic stapler" patented technology

The invention is a stapler device comprising an anvil and staple cartridge located in the distal tip of an endoscopic device. The staple cartridge is comprised of a fixed proximal portion and a moveable distal portion, which slides into said fixed portion. Means are provided for moving the anvil back and forth, such that the anvil pushes against the distal face of the staple cartridge thereby pushing the moveable portion of the staple cartridge into the fixed portion and causing the staples to be ejected from said staple cartridge passively without said staples moving. The stapler of the invention has two embodiments, a side fastening embodiment and a front fastening embodiment. The endoscopic device that comprises the stapler can be used to perform many different stapling tasks, e.g. closure of a hole in the wall of an internal organ.

An endoscopic stapler comprises a first jaw and a second jaw. The first jaw includes structure for retaining a plurality of staples. The first jaw and second jaw are mounted to permit pivotal movement of the first and second jaws relative to one another. The endoscopic stapler also comprises at least one clamp member for clamping tissue and pulling the tissue into a position between the first jaw and the second jaw to facilitate inserting at least one staple of the plurality of staples into the tissue. A first handle is operably coupled with the first jaw such that movement of the first handle effects delivery of the at least one staple of the plurality of staples to the tissue. A second handle is operably coupled with the second jaw and the at least one clamp member such that movement of the second handle effects movement of the second jaw and movement of the at least one clamp member.

A guide tip introducer is provided as a compatible attachment for a wide range endoscopic staplers of different makes and models. The guide tip introducer mounts to the anvil of an existing endoscopic stapler in order to facilitate the positioning of the stapler beneath a target structure, reducing the amount tissue needing to be dissected. The guide tip introducer is easy to attach and remove from the anvil tip through its particular shape and through the use of a magnetic attachment strip. The guide tip introducer is constructed from smooth semi-rigid material enabling guidance of the endoscopic stapler while minimizing damage around target structures. The guide tip introducer is fashioned using commonly available material found in most standard operating rooms.

A suturing device for an endoscope includes a curved needle rotatably attached on the distal end of the suturing device. A rotary member is provided on the rotation axis of the curved needle for rotating said curved needle and a connecting arm connects the curved needle to the rotary member. The center of curvature of the curved needle is aligned with the rotation axis of the curved needle and engaging means are provided at least at the pointed end of the curved needle for receiving thread.

An endoscopic stapler comprises a first jaw and a second jaw. The first jaw includes structure for retaining a plurality of staples. The first jaw and second jaw are mounted to permit pivotal movement of the first and second jaws relative to one another. The endoscopic stapler also comprises at least one clamp member for clamping tissue and pulling the tissue into a position between the first jaw and the second jaw to facilitate inserting at least one staple of the plurality of staples into the tissue. A first handle is operably coupled with the first jaw such that movement of the first handle effects delivery of the at least one staple of the plurality of staples to the tissue. A second handle is operably coupled with the second jaw and the at least one clamp member such that movement of the second handle effects movement of the second jaw and movement of the at least one clamp member.

An endoscopic suturing instrument is equipped with a needle mounted at the distal end of the suturing instrument for the purpose of living-tissue punctures. An engaging mechanism is provided at least at the distal end of the needle for the purpose of connecting the thread while allowing it to move freely, and the suturing instrument includes a needle-driving mechanism to drive the needle. A loop-creating mechanism is used to create a first loop in the thread, by loosening the thread connected to the engaging mechanism. A catching mechanism is provided at the distal end of the suturing instrument to be inserted through the first loop to catch the thread. The thread caught by the catching mechanism can be moved freely. The needle-driving mechanism and the catching mechanism are mechanically coupled.

A guide tip introducer is provided as a compatible attachment for a wide range endoscopic staplers of different makes and models. The guide tip introducer mounts to the anvil of an existing endoscopic stapler in order to facilitate the positioning of the stapler beneath a target structure, reducing the amount tissue needing to be dissected. The guide tip introducer is easy to attach and remove from the anvil tip through its particular shape and through the use of a magnetic attachment strip. The guide tip introducer is constructed from smooth semi-rigid material enabling guidance of the endoscopic stapler while minimizing damage around target structures. The guide tip introducer is fashioned using commonly available material found in most standard operating rooms.

The invention discloses a stapler control circuit. The circuit comprises a power supply, a firs discharge element, a power supply control switch, a conduction loop, and a control driving loop, the power supply control switch controls the power supply to be connected with a circuit power supply input port, and the power supply control switch controls the first discharge element to perform discharge on the power supply; the conduction loop is connected with the first discharge element in parallel; the control driving loop is connected with the conduction loop in parallel; the control driving circuit includes a direct current motor, a first relay, a second relay and a switching circuit, the switching circuit controls forward rotation, reverse rotation, forward rotation brake stop, reverse brake stop and rotation amount of the direct current motor; all control operations of an endoscopic stapler are completed by one motor; the work efficiency is high, the cost is relatively low, and the burden on patients is reduced; and the battery of the power supply runs out in a limited time, and the original problem of battery environmental pollution is solved .

The invention relates to an adapter used for an endoscopic stapler. The adapter includes a shell, a nail bin connection rod, a transmission component, a drive connection block, a striking push rod, afirst trigger element and a first contact switch; the first trigger element is fixedly arranged on the drive connection block, and the first contact switch is fixedly arranged on the shell; the transmission component transmits power of a motor to the drive connection block, so that the drive connection block moves in the axial direction of the nail bin connection rod; the drive connection block drives a striking push rod to move in the axial direction of the nail bin connection rod; the striking push rod moves to the first contact switch relative to the nail bin connection rod so as to triggerthe first contact switch, and the first contact switch transmits a signal to a control unit of the endoscopic stapler. According to the adapter, the first contact switch transmits the signal to the control unit of the endoscopic stapler, the control unit can controls the motor to stop running, the striking push rod thus can be accurately kept at an installation position, and installation of the nail bin component is convenient to achieve. The invention further relates to the endoscopic stapler.

The invention relates to an endoscopic anastomat, comprising an adapter, staple magazine components and a control system. The adapter comprises a main housing, a rotary housing, a recognition push rod, a recognition connector, a recognizer and a photoelectric switch; the recognizer is provided with a grating. The staple magazine component is mounted on the adapter and pushes the recognition push rod to move; the recognition push rod pushes the recognition connector to move; the recognition connector pushes the recognizer to move. The staple magazine components having different suturing lengthshave different tail lengths and can be mounted on the adapter to push the recognition push rod to move by different distances. The photoelectric switch recognizes the grating on the recognizer and provides a recognition signal to the control system; the control system judges suturing lengths of the staple magazine components according to the recognition signal of the photoelectric switch. The endoscopic anastomat can recognize suturing lengths of the staple magazine components. Medical staff can confirm whether the installed staple magazine component is correct according to recognition results of the control system.

The invention provides a measuring device and method for triggering force and closing force of an endoscopic stapler. The measuring device for the triggering force and the closing force of the endoscopic stapler includes a bearing part, a clamping part, a triggering force measuring part, a closing force measuring part, a data processing and display part and an L-shaped plate. The measuring deviceand method for the triggering force and the closing force of the endoscopic stapler have the characteristics of simple structure and convenient operation, the endoscopic stapler can be clamped, and the triggering force and the closing force are automatically measured.

The invention belongs to the field of medical devices, and specifically relates to a drug-coated titanium nail with chitosan gelatin as a carrier, which is characterized in that: the thickness of the coating on the titanium nail is 0.001-10 mm; Titanium nails are used for open and endoscopic anastomotic staplers, skin sutures, linear staplers, and clip applicators. The diameter of the titanium nails is 0.1-5.0. The titanium nails are made of TA1, TA2 and the metal nails are made of 316LVM stainless steel, self-reinforced poly-L A coating of lactide SR-PLLA12 nails and self-reinforced poly-L-polyglycolide SR-PGA nails, the chitosan gelatin titanium nails can perform chitosan for human implants, artificial organs, catheters Sugar gelatin coating treatment or coating treatment using chitosan gelatin as drug controlled release carrier, the method is simple and easy, the prepared chitosan gelatin coated titanium nail meets the clinical application requirements, chitosan gelatin coated titanium nail can It promotes tissue healing, has good stability, is not easy to wash off, is safe to use, is suitable for large-scale industrial production, and is simple to operate and low in cost.

The invention belongs to the field of medical devices, and specifically relates to a drug-coated titanium nail with calcium alginate fiber as a carrier. Human implants, artificial organs and catheters can be coated with calcium alginate fibers or coated with calcium alginate fibers as drug-controlled release carriers. The titanium nails are used for open and laparoscopic anastomotic staplers , skin suture, linear stapler, clip applier, titanium nails with a diameter of 0.1-0.5, titanium nails made of TA1, TA2 and metal nails made of 316LVM stainless steel, self-reinforced poly-L-lactide SR-PLLAl2 nails and self-reinforced poly The coating of L-polyglycolide SR-PGA nails can effectively improve the use of surgical stomach, lung and other tissues and digestive tract surgical tissues, reduce the incidence of complications of patients, improve the survival rate and quality of life of patients, and the process is simple. The cost is low, the coating of the titanium nail is uniform, and the loading capacity of the drug and the controlled release carrier is also greatly increased.

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 discloses an endoscope stapling device for implementing fundoplication. The endoscope stapling device comprises a handle, a tapered protective sleeve, an insertion tube, a rigid section,a bent part, and a top part. The front end of the handle is fixedly connected to the insertion tube by the tapered protective sleeve. The front end of the insertion tube is fixedly connected to the rigid section, the bent part and the top part in sequence. The side of the rigid section and the end of the top part form a stapling mechanism. The top part is provided with a micro camera, an ultrasonic detector and a surgical stapling unit. The handle is used to control a bending angle of the bent part, so that the end surface of the top part can correspond to the side surface of the rigid section, thereby enabling the top part to be in a stapling state. The endoscope stapling device of the present invention can be used for the surgical fundoplication with minimally invasive stapling operation under the endoscope, and is a treatment technique for resisting gastroesophageal reflux disease. The whole operation is performed under an endoscopic stapler system and can be completed only within1-2 hours. The endoscope stapling device of the present invention achieves high compliance of patients and minor injury. Compared to traditional surgery or lifelong medication for the gastroesophagealreflux disease, the endoscope stapling device of the present invention is a more attractive treatment technique.

The invention relates to an adapter used for an endoscopic stapler. The adapter includes a striking push rod, a nail bin connection rod, a nail bin lock rod, an elastic element, an outer sleeve pipe and a blocking element; the surface of the striking push rod is provided with a groove, the nail bin connection rod is provided with a first limiting hole matched with the groove, the nail bin lock rodis provided with a limiting part, and the elastic element is used for making the nail bin lock rod be abutted to a boss of the tail end of the nail bin component; when the striking push rod is located at a starting position, and the blocking element falls in a groove of the striking push rod and is located on the lower side of the limiting part; when the striking push rod leaves from the startingposition, and the blocking element moves into the first limiting hole of the nail bin connection rod under the effects of the side wall of the groove and the side wall of the first limiting hole andis abutted to the rear side face of the limiting part. According to the adapter used for the endoscopic stapler, when the striking push rod moves forward from the starting position, the blocking element is located in the first limiting hole and abutted to the rear side face of the limiting part, the nail bin lock rod can not move backward, so that the nail bin component can not accidentally fall off and the smoothness of an operation is ensured.

The invention provides a laparoscopic stapler, which is used to solve the problems in the prior art that the cutting knife will not be reset after being pushed out, there is a safety hazard, and the safety structure of the cutting knife affects the structural strength of the base of the nail box and has a complex structure. Including: cutting knife mechanism, nail magazine assembly, nail magazine base, nail abutment seat assembly, safety assembly and nail magazine rear general assembly; push-pull part, the output end of the push-pull part is used to push and pull the cutting knife, and the output of the push-pull part The end is fixed with a second hook; the nail cartridge assembly is detachably installed on the nail magazine base; when the nail cartridge assembly is taken out from the nail magazine base, the safety component will hinder the forward movement of the push-pull member, and the When the nail cartridge assembly is installed on the nail cartridge base, the nail cartridge assembly overcomes the resistance of the safety assembly and releases the restriction on the forward and backward displacement of the push-pull member. It has a safety function, and the cutting knife can be hidden automatically.

The invention discloses a laparoscopic cutting stapler, which comprises an executive assembly, a jaw direction adjustment mechanism and a stapler driving part; the jaw direction adjustment mechanism comprises a joint knob, a main turntable, a shrapnel assembly, a slave turntable, a ring gear, and a transmission shaft , pin shaft, swivel head, adjusting sleeve and 2 joint push rods; the main turntable is provided with a main boss; the slave turntable is provided with a mounting position, a slave boss and a pin hole; the shrapnel assembly includes two elastically set snaps The ring gear is fixed in the rotating head, and its inner ring is provided with evenly distributed teeth; when the joint knob is turned to adjust the jaws to turn, the shrapnel assembly is snapped into the ring gear in time, limiting the rotation from the turntable, effectively ensuring the operation For the problem of jaw swing back during the process, it is easier and labor-saving to operate the adjustment mechanism of the jaw direction; the sound from the beating of the shrapnel makes the jaw direction adjustment mechanism of the stapler have dual reminder effects of feeling and sound.

The invention discloses an endoscope anastomat unlocked by a cannula. The endoscope anastomat includes a nail box and a cutting knife; the nail box is composed of a nail box inner core and a nail boxcasing pipe, wherein the nail box inner core includes a nail box base and a nail box upper cover, the cutting knife is placed in the nail box inner core, the tail portion of the cutting knife is provided with a groove, and the nail box upper cover corresponding to the groove is provided with a through hole; the endoscope anastomat unlocked by the cannula further includes a steering lock, and the head of the steering lock is clamped in the groove by means of the through hole to fix the nutting knife; the steering lock is sleeved with the steering lock cannula. According to the endoscope anastomat unlocked by the cannula, an original protective jacket similar to a packing material is removed, and therefore the cost is saved; during use, the operation is more simplified, and the operation difficulty for operators is reduced; the situation that assemblies are unrecoverable because of operation mistakes can be avoided, and the potential clinical risks are reduced.

The invention discloses an endoscopic stapler. A surgical stapler is described herein which includes a shaft portion and a tool assembly supported on a distal end of the shaft portion. The tool assembly includes an anvil and a cartridge body which rotatably supports a plurality of staples within notches. At least one firing cam is provided to sequentially engage and rotate each of the staples to fire the staples from the cartridge body. Each of the staples includes first and second legs axially offset from each other and interconnected by an intermediate portion. At least one firing cam is provided to sequentially engage and rotate each of the staples to fire the staples from the cartridge body. The at least one firing cam may include axially offset cam members.

The invention relates to an adapter used for an endoscopic stapler. The adapter includes a striking push rod, a nail bin connection rod, a nail bin lock rod, an elastic element, an outer sleeve pipe and a blocking element; the surface of the striking push rod is provided with a groove, the nail bin connection rod is provided with a first limiting hole matched with the groove, the nail bin lock rodis provided with a limiting part, and the elastic element is used for making the nail bin lock rod be abutted to a boss of the tail end of the nail bin component; when the striking push rod is located at a starting position, and the blocking element falls in a groove of the striking push rod and is located on the lower side of the limiting part; when the striking push rod leaves from the startingposition, and the blocking element moves into the first limiting hole of the nail bin connection rod under the effects of the side wall of the groove and the side wall of the first limiting hole andis abutted to the rear side face of the limiting part. According to the adapter used for the endoscopic stapler, when the striking push rod moves forward from the starting position, the blocking element is located in the first limiting hole and abutted to the rear side face of the limiting part, the nail bin lock rod can not move backward, so that the nail bin component can not accidentally fall off and the smoothness of an operation is ensured.

The invention relates to a safety switch. The safety switch is characterized in that the safety switch comprises a main body, a limit part, a trigger part and a proximity switch, wherein the main bodyis movably disposed in a housing of an endoscopic stapler and is provided with a limit unit, the limit part is fixedly arranged in the housing of the endoscopic stapler and provided with a first limit slot and a second limit slot which match with the limit unit, the trigger part is arranged on the main body, and the proximity switch is fixedly disposed on the housing of the endoscopic stapler; the limit unit can switch between the first limit slot and the second limit slot; when the limit unit switches from the first limit slot to the second limit slot, the trigger part triggers the proximityswitch to transmit signals to a control unit of the endoscopic stapler. Only when the proximity switch is triggered can the safety switch be opened, and only when the proximity switch transmits the signals to the control unit can the endoscopic stapler be started to operate, or the endoscopic stapler is not to be started. Consequently, double protection is provided to prevent the false start of the endoscopic stapler.

The invention discloses a zinc alloy endoscopic stapler cartridge and a preparation method thereof. The zinc alloy endoscopic stapler cartridge comprises a zinc alloy endoscopic stapler cartridge basebody and a composite film layer, wherein the surface of the zinc alloy endoscopic stapler cartridge base body is subjected to sand blasting treatment to form a frosted layer, the frosted layer is subjected to electrostatic spinning treatment, and the outer layer of the frosted layer is evenly covered with an electrostatic spinning film; and the frosted layer and the electrostatic spinning film form the composite film layer together. The zinc alloy endoscopic stapler cartridge base body and the composite film layer covering the surface of the zinc alloy endoscopic stapler cartridge base body are both made of biodegradable materials, so that the zinc alloy endoscopic stapler cartridge base body has excellent biocompatibility and safety, and the problem and the negative effect that a titanium alloy endoscopic stapler cartridge remains for a long time can be solved. Besides, zinc alloys are excellent in corrosion resistance in the human body environment, and the problem that the degradation rate of the magnesium endoscopic stapler cartridge is too high is solved.

The invention provides an anorectal operation assisting device which comprises a hollow body, a guide portion located at the far end of the hollow body and an external expansion portion located at the near end of the hollow body. The side wall of the hollow body is provided with at least one opening, the portion, opposite to the opening, of the side wall of the hollow body is provided with at least one suture traction hole, and the outer side wall near the suture traction hole is provided with a cover provided with an open port. Compared with traditional hemorrhoidectomy and procedure for prolapse and hemorrhoids, by means of the anorectal operation assisting device, purse-string suture is well and evenly carried out on non-circular hemorrhoids, lateral traction is complete, and accordingly operation space of an endoscopic stapler in the hollow body is enlarged, so that the non-circular hemorrhoids are conveniently and completely removed, pain of patients is greatly relieved, and the recurrence rate of affected parts is lowered.

The invention discloses an endoscope stapler. A surgical stapler is described that includes a shaft portion and a tool assembly supported on a distal end of the shaft portion. The tool assembly includes an anvil and a cartridge body that rotatably supports a plurality of staples within the recess. At least one firing cam is configured to sequentially engage and rotate each staple to fire the staples from the cartridge body. Each staple includes a first staple leg and a second staple leg axially offset from one another and interconnected by an intermediate portion. At least one firing cam is configured to sequentially engage and rotate each staple to fire the staples from the cartridge body. The at least one firing cam may include an axially offset cam member.

The invention discloses an anastomat for closing surgical incision. The anastomat comprises a firing mechanism and an endoscopic stapler cartridge transmitting mechanism connected to the firing mechanism, wherein the endoscopic stapler cartridge transmitting mechanism comprises an endoscopic stapler cartridge guiding groove, a strip guiding part and an endoscopic stapler cartridge ejecting plate;an operation part for controlling opening and closing is arranged at the rear end of the strip guiding part; a pair of bearing lugs, which faces the corresponding directions of the endoscopic staplercartridge guiding groove and the operation part, is arranged at the endoscopic stapler cartridge guiding groove and the operation part in a bulging manner; the bearing lugs and a pin shaft are used for combining the endoscopic stapler cartridge guiding groove and the strip guiding part, a spiral spring is packed and penetrates through the pin shaft on the bearing lug, and the spiral spring is usedfor enabling the strip guiding part to be biased towards the direction that the strip guiding part and the endoscopic stapler cartridge guiding groove are in normalcy mutual closing; a chute part which is bulged towards the direction of the endoscopic stapler cartridge guiding groove is arranged at the middle of the strip guiding part, the width of the chute part is equal to the internal spacingof two endoscopic stapler cartridge feet of an endoscopic stapler cartridge, the upper surface of the chute part and the endoscopic stapler cartridge crown of the endoscopic stapler cartridge are in sliding cooperation, the outside surface of the chute part and the upper segment of the endoscopic stapler cartridge are in sliding cooperation, the endoscopic stapler cartridge ejecting plate and thechute part are in sliding cooperation, and the endoscopic stapler cartridge is easy to disinfect.

The invention provides an anorectal operation assisting device which comprises a hollow body, a guide portion located at the far end of the hollow body and an external expansion portion located at the near end of the hollow body. The side wall of the hollow body is provided with at least one opening, the portion, opposite to the opening, of the side wall of the hollow body is provided with at least one suture traction hole, and the outer side wall near the suture traction hole is provided with a cover provided with an open port. Compared with traditional hemorrhoidectomy and procedure for prolapse and hemorrhoids, by means of the anorectal operation assisting device, purse-string suture is well and evenly carried out on non-circular hemorrhoids, lateral traction is complete, and accordingly operation space of an endoscopic stapler in the hollow body is enlarged, so that the non-circular hemorrhoids are conveniently and completely removed, pain of patients is greatly relieved, and the recurrence rate of affected parts is lowered.

The invention discloses a laparoscopic stapler with an anti-retraction safety mechanism, which belongs to the technical field of staplers and comprises a gun body, a static grip and a dynamic grip. The gun body is provided with a control lever, and the lower surface of the gun body A static grip is fixedly connected, and a dynamic grip is connected to the lower surface of the gun body in rotation. The dynamic grip is located on the left side of the static grip. The static grip is provided with an anti-retraction mechanism, which is fixedly installed on the The lower surface of the gun body. In the present invention, by setting the anti-retraction mechanism, the moving handle will drive the positioning block to move, and the positioning block can adjust the position of the card slot when the positioning block moves, and at the same time, the positioning block no longer hinders the clamping rod, and the first spring passes through the The elongation of its own elastic force can push the lever to move downward, so that the lever is no longer inserted into the slot. At this time, the positioning block is no longer fixed and the dynamic grip is no longer fixed, so that the dynamic grip can Reset to work again.