CN109009286B - Disposable arc-shaped cutting anastomat - Google Patents

Disposable arc-shaped cutting anastomat Download PDF

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Publication number
CN109009286B
CN109009286B CN201810977198.7A CN201810977198A CN109009286B CN 109009286 B CN109009286 B CN 109009286B CN 201810977198 A CN201810977198 A CN 201810977198A CN 109009286 B CN109009286 B CN 109009286B
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CN
China
Prior art keywords
nail bin
plate
groove
seat
nail
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CN201810977198.7A
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Chinese (zh)
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CN109009286A (en
Inventor
江世华
吴宇雷
王海龙
江世红
丁喜全
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Jiangsu Zihang Precision Hardware Co ltd
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Jiangsu Zihang Precision Hardware Co ltd
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Priority to CN201810977198.7A priority Critical patent/CN109009286B/en
Publication of CN109009286A publication Critical patent/CN109009286A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B17/07207—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08—Accessories or related features not otherwise provided for
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0023—Surgical instruments, devices or methods, e.g. tourniquets disposable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B2017/07214—Stapler heads
    • A61B2017/07271—Stapler heads characterised by its cartridge
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068—Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072—Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B2017/07214—Stapler heads
    • A61B2017/07278—Stapler heads characterised by its sled or its staple holder
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08—Accessories or related features not otherwise provided for
    • A61B2090/0807—Indication means

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Pathology (AREA)
  • Slide Fasteners (AREA)

Abstract

The invention relates to a disposable arc-shaped cutting anastomat, which belongs to medical appliances and is particularly suitable for anorectal hemorrhoid cutting operation and rectal polypectomy. The device comprises a replaceable nail supporting seat assembly, a replaceable nail bin assembly, a replaceable push-piece cutting knife assembly, a fixed handle, a nail supporting seat rotary connecting device, a movable handle, a left bracket, a right bracket, a nail bin transmission mechanism, a push-piece cutting knife transmission mechanism, a reset mechanism and an indication mechanism; the replaceable nail supporting seat assembly comprises a nail supporting seat bracket, a cutter washer, a nail supporting seat, a nail bin bracket cover plate and an assembly fixing sleeve; the replaceable nail bin assembly comprises a positioning pin, a nail bin seat fixing pin, a lower nail bin connecting plate, a nail bin connecting plate pin, a nail bin connecting plate seat, an upper nail bin connecting plate and a nail bin fixing plate; the replaceable push-piece cutting knife assembly comprises a cutting knife, a push-piece connecting plate seat and a push-piece connecting plate seat spring.

Description

Disposable arc-shaped cutting anastomat
Technical Field
The invention relates to a disposable arc-shaped cutting anastomat, which belongs to medical appliances and is particularly suitable for anorectal hemorrhoid cutting operation and rectal polypectomy.
Background
Anal fistula is commonly known as hemorrhoids, which are common diseases and frequently occurring diseases of human beings. According to the general investigation data, the incidence rate of anorectal diseases is 59.1%, hemorrhoids account for 87.25% of all anorectal diseases, and internal hemorrhoids account for 52.19% of all anorectal diseases most frequently. The male and female can get ill, the incidence rate of female is 67%, the incidence rate of male is 53.9%, and the male can get ill at any age, and the male is gradually aggravated with the increase of age, so that the theory of 'ten people and nine hemorrhoids' is provided.
Cutting staplers are devices used medically to replace traditional manual cutting sutures. The arc-shaped cutting anastomat has various use advantages as a disposable cutting anastomat, for example, the arc-shaped design at the front end of the arc-shaped cutting anastomat is convenient to penetrate into a narrow space in the deep part of anorectal, the cutting and the sewing are finished synchronously, and the operation steps are simplified. When the arc-shaped cutting anastomat is used, a sectional closing mode is adopted, so that the tissue can be conveniently adjusted and positioned, the positioning needle is used for positioning and locking, and then cutting and suturing are carried out. The traditional arc cutting anastomat adopts the positioning button to push back and forth to control the positioning needle, so that unstable factors exist in control, human tissues are easy to displace, the continuous repositioning is required, the operation time is prolonged, the inaccurate cutting and suturing positions are seriously caused, and more serious consequences are generated. In addition, the traditional arc-shaped cutting anastomat can not be used for replacing components, multiple instruments can be used in the same operation, so that the operation cost is high, and a larger economic burden is brought to a patient.
Disclosure of Invention
The invention aims to provide a disposable arc-shaped cutting anastomat aiming at the defects, which comprises a replaceable nail pushing seat assembly, a replaceable nail bin assembly, a replaceable push-piece cutting knife assembly, a fixed handle, a nail pushing seat rotary connecting device, a movable handle, a left bracket, a right bracket, a nail bin transmission mechanism, a push-piece cutting knife transmission mechanism, a reset mechanism and an indicating mechanism; the disposable arc-shaped cutting anastomat is suitable for anorectal polyp cutting operation, rectal polyp cutting operation and anorectal hemorrhoid partial excision operation, and the replaceable nail supporting seat, the nail bin and the cutting knife assembly can rotate by 360 degrees, so that the operation position can be adjusted randomly in the operation, and the operation difficulty is reduced. Three rows of nails are arranged in the nail bin, the step nails are high, and after cutting anastomosis is completed, tissues are easier to recover blood supply, so that wound healing of a patient after operation is quickened. Because the replaceable nail supporting seat, the nail bin and the cutting knife assembly are arranged, the operation cost is reduced, and the economic burden of a patient is lightened.
The disposable arc-shaped cutting anastomat is realized by adopting the following technical scheme:
the disposable arc-shaped cutting anastomat comprises a replaceable nail supporting seat assembly, a replaceable nail bin assembly, a replaceable push-piece cutting knife assembly, a fixed handle, a nail supporting seat rotary connecting device, a movable handle, a left bracket, a right bracket, a nail bin transmission mechanism, a push-piece cutting knife transmission mechanism, a reset mechanism and an indication mechanism.
The replaceable nail supporting seat assembly comprises a nail supporting seat bracket, a cutter washer, a nail supporting seat, a nail bin bracket cover plate and an assembly fixing sleeve.
The nail supporting seat support is arc-shaped, a U-shaped groove is formed in the middle of the nail supporting seat support, nail supporting seat mounting grooves are formed in two sides of the U-shaped groove, positioning pin mounting grooves are formed in two sides of the arc surface of the nail supporting seat support, and a cutter washer mounting groove is formed in the inner side of the arc surface of the nail supporting seat support.
The nail propping seat is arc-shaped, a U-shaped groove is arranged in the middle, positioning pin sliding holes are arranged on two sides of the arc surface of the nail propping seat, and three rows of anastomotic nail forming grooves are arranged on the arc surface of the nail propping seat.
The upper part of the nail bin bracket is arc-shaped, the lower part of the nail bin bracket is circular pipe-shaped, the upper part of the nail bin bracket is arc-shaped and provided with a sliding groove for connecting an upper nail bin and a lower nail bin, and one side of the lower circular pipe is provided with a U-shaped groove for installing a cover plate of the nail bin bracket. Two square bosses are arranged at the rear end of the round tube.
The cutter washer and the nail propping seat are sequentially arranged in the nail propping seat support, the nail propping seat support is connected with the nail bin support through a pin, the nail bin support cover is arranged in a U-shaped groove at one side of the lower part of the nail bin support, and the outer side of the nail bin support is sleeved with the component fixing sleeve.
The replaceable nail bin assembly comprises a positioning pin, a nail bin seat fixing pin, a lower nail bin connecting plate, a nail bin connecting plate pin, a nail bin connecting plate seat, an upper nail bin connecting plate and a nail bin fixing plate.
The locating pin is cylindric, and the upper end is provided with cylindrical boss.
The nail bin is arc-shaped, positioning pin movable holes are formed in two sides of the arc, a cutting knife sliding groove is formed in the inner side of the arc, three rows of arc-shaped distributed anastomotic nail mounting grooves are formed in the outer side of the arc, the anastomotic nail mounting holes are of step heights, and U-shaped grooves are formed in two ends of the arc-shaped surface of the nail bin. The lower end of the nail bin is provided with a cylindrical installation bulge and an arc bulge.
The nail bin seat is arc, is provided with the ejector pad mounting groove in the middle, and the upper end is provided with cylindrical mounting groove and arc mounting groove, and the lower part is provided with the sliding tray of ejector pad connecting plate, and the nail bin seat lower extreme is provided with the arc arch, is provided with nail bin fixing pin hole on the arc arch, and nail bin seat both sides are provided with nail bin fixing plate mounting groove.
The nail bin fixing plate is strip-shaped, and two ends of the nail bin fixing plate are provided with bulges.
The upper nail bin connecting plate is arc-shaped, two ends of the upper side of the arc are provided with nail bin fixing pin holes, the lower part is strip-shaped, and one end of the lower part is provided with a nail bin connecting plate pin mounting hole.
The lower nail bin connecting plate is arc-shaped, nail bin fixing pin holes are formed in two ends of the upper side of the arc, the lower portion is strip-shaped, and a nail bin connecting plate pin mounting hole is formed in one end of the lower portion.
The front end of the nail bin connecting plate seat is provided with an upper connecting plate installing groove and a lower connecting plate installing groove, the middle part of the front end is provided with a pushing plate connecting plate sliding groove, the middle part of the nail bin connecting plate seat is provided with a pushing plate connecting plate seat sliding groove, and the rear end of the nail bin connecting plate seat is provided with a closed push rod movable connection clamping groove.
The locating pin slides in the locating pin movable hole of nail storehouse, and the cylindrical installation arch of nail storehouse lower extreme is protruding to be installed in the cylindrical installation groove and the arc mounting groove of nail storehouse seat with the arc cooperation, and the both sides are fixed with nail storehouse fixed plate, and nail storehouse seat lower extreme passes through nail storehouse seat fixed pin fixed mounting on upper and lower nail storehouse connecting plate, and upper and lower nail storehouse connecting plate passes through nail storehouse connecting plate round pin and installs on nail storehouse connecting plate seat.
The replaceable push-piece cutting knife assembly comprises a cutting knife, a push-piece connecting plate seat and a push-piece connecting plate seat spring.
The cutting knife is arc-shaped, and the lower end is provided with a bulge.
The pushing plate is arc-shaped, the upper part is three rows of pushing nail plates distributed in arc shape, the lower end is provided with a pushing plate connecting plate mounting groove, and the pushing plate connecting plate mounting groove is provided with a pin hole.
The upper end of the pushing piece connecting plate is arc-shaped, the lower part is strip-shaped, the upper end is provided with a pin hole, and the lower end is also provided with a pin hole.
The upper end of the push-piece connecting plate seat is provided with a push-piece connecting plate mounting groove and a pin hole.
The cutting knife is coated at the front end of the push plate through injection molding, the push plate is fixedly installed with the push plate connecting plate through a pin, and the push plate connecting plate is fixedly installed with the push plate connecting plate seat through a pin.
When the replaceable nail pushing seat assembly, the replaceable nail bin assembly and the replaceable push piece cutting knife assembly are assembled, the push piece cutting knife is installed in a push piece installation groove of the nail bin seat, the push piece connecting plate penetrates through a push piece connecting plate sliding groove of the nail bin seat, the push pieces distributed in an arc shape on the push pieces slide in an anastomotic nail installation groove distributed in an arc shape on the nail bin to push anastomoses, and the cutting knife slides in a cutting knife sliding groove on the nail bin to cut tissues. The nail bin is fixedly connected with the nail bin seat and then slides in the nail supporting seat mounting grooves on two sides of the U-shaped groove of the nail supporting seat bracket, the positioning pin is mounted in the positioning pin mounting groove of the nail supporting seat bracket, penetrates through the positioning pin sliding hole of the nail supporting seat and slides in the positioning pin moving hole on the nail bin; the lower part of the nail bin seat is arranged in the circular arc running groove at the upper end of the nail bin bracket in a matching way. The push plate connecting plate slides between the upper and lower nail bin connecting plates, the three strip-shaped parts pass through the circular arc structure at the upper end of the nail bin bracket and slide in the tubular structure at the lower part of the nail bin bracket, the nail bin connecting plate seat is arranged in the tubular structure of the nail bin bracket, and the push plate connecting plate seat spring are arranged in the push plate connecting plate sliding groove.
The front end of the fixed handle is provided with a rotary handle mounting groove, the rear part of the fixed handle is provided with a withdrawal button mounting hole, the upper part of the fixed handle is provided with an indicator sliding groove, the rear part of the indicator sliding groove is provided with a window mounting groove, the middle part of the indicator sliding groove is provided with a movable handle mounting groove, and the lower part of the indicator sliding groove is provided with a fixed handle pin mounting hole.
The rotary connecting device of the nail supporting seat comprises a fixed rod, a rotary handle, a component unloading button spring, a component unloading button and a fixed sleeve.
The dead lever is cylindricly, is provided with the through-hole in the middle, and the front end is provided with nail storehouse support swivelling joint draw-in groove, and the dead lever outside is provided with unloads subassembly button sliding mounting groove to and unload subassembly button spring mounting groove, and the rear portion is provided with twist grip spread groove and twist grip fixed slot.
The front part of the rotary handle is provided with a fixing rod installation bulge, the rear part of the rotary handle is provided with a fixing handle installation bulge, and the surface of the rotary handle is provided with anti-skid patterns. The rotary handle consists of a left rotary handle and a right rotary handle.
The disassembly button is provided with a bulge and a disassembly button spring mounting column.
The fixed sleeve is tubular, and the upper part is provided with a U-shaped groove.
The assembly unloading button spring is arranged on an assembly unloading button spring mounting column of the assembly unloading button, the assembly unloading button is arranged in an assembly unloading button sliding mounting groove of the fixing rod, the fixing sleeve is sleeved on the outer side of the fixing rod, and a bulge of the assembly unloading button slides in a U-shaped groove of the fixing sleeve. The rotary handle connecting groove and the rotary handle fixing clamping groove at the rear end of the fixed rod are matched and fixedly installed on the fixed rod installation protrusion of the rotary handle, and the fixed handle installation protrusion at the rear end of the rotary handle is matched and installed in the rotary handle installation groove of the fixed handle and can rotate mutually.
The upper end of the movable handle is provided with a left supporting plate pushing boss and a right supporting plate pushing boss, the upper part of the movable handle is provided with a firing push plate mounting groove and a firing pin mounting hole, the lower part of the firing push plate mounting groove is provided with a left bracket mounting boss and a right bracket mounting boss, the right side of the movable handle is provided with a movable handle tension spring mounting boss, the right side of the movable handle is provided with a connecting rod pushing boss, and the lower side of the connecting rod pushing boss of the movable handle is provided with a left slider bulge and a right slider bulge.
The front end of the left bracket is provided with a pin mounting hole, the upper part of the rear end is provided with a clamping plate rivet mounting hole, the middle is provided with a long kidney-shaped groove, the front part of the long kidney-shaped groove is provided with a slider spring mounting hole, the front downside of the slider spring mounting hole is provided with a movable handle mounting hole, the middle rear part of the upper side of the left bracket is provided with a left slider mounting groove, and the lower part of the upper side of the left bracket is provided with a clamping plate rivet mounting hole.
The front end of the right support is provided with a pin mounting hole, the upper part of the rear end is provided with a clamping plate rivet mounting hole, the middle part is provided with a long kidney-shaped groove, the front part of the long kidney-shaped groove is provided with a sliding block spring mounting hole, the front downside of the sliding block spring mounting hole is provided with a movable handle mounting hole, the middle rear part of the upper side of the right support is provided with a right sliding block mounting groove, the lower part is provided with a clamping plate rivet mounting hole, and the middle of the upper side is provided with a nail pushing plate tension spring mounting hole.
The nail bin transmission mechanism comprises a closing push rod, a rotary fixing block, a right support plate, a rod receiving sleeve, a connecting rod, a clamping plate rivet, a rod receiving pin, a left support plate and a rod receiving sleeve pin.
The closed push rod is cylindrical, a through hole is formed in the middle of the closed push rod, a nail bin connecting plate seat movable connecting buckle is arranged at the front end of the closed push rod, and a rotary fixing block connecting clamping groove is formed in the rear end of the closed push rod.
The rotary fixing block is cylindrical, sliding planes are arranged on two sides of the rotary fixing block, a through hole is formed in the middle of the rotary fixing block, a closed push rod installation protrusion is arranged at the front end of the rotary fixing block, and T-shaped left and right support plate clamping grooves are formed in two sides of the rear end of the rotary fixing block.
The front end of the left support plate is provided with a T-shaped mounting buckle, the middle is provided with a long kidney-shaped groove, the rear part of the long kidney-shaped groove is provided with a firing bar rear seat sliding groove, the rear end is provided with a bar connecting sleeve pin mounting hole, and the upper end is provided with a square bulge.
The front end of the right support plate is provided with a T-shaped mounting buckle, the middle is provided with a long kidney-shaped groove, the rear part of the long kidney-shaped groove is provided with a firing bar rear seat sliding groove, and the rear end is provided with a connecting bar sleeve pin mounting hole.
The front part of the connecting rod sleeve is provided with a movable handle movable groove, the front end of the connecting rod sleeve is provided with a connecting rod sleeve pin mounting hole, and the rear end of the connecting rod sleeve is provided with a connecting rod pin mounting hole and a connecting rod mounting groove.
The front end of the connecting rod is provided with a connecting rod sleeve mounting protrusion and a connecting rod pin mounting hole, and the rear end of the connecting rod is provided with a clamping plate rivet mounting hole.
The rotary fixed block connecting clamping groove at the rear end of the closed push rod is arranged on the closed push rod mounting protrusion of the rotary fixed block, T-shaped mounting buckles of the left support plate and the right support plate are respectively arranged in T-shaped left support plate clamping grooves and right support plate clamping grooves of the rotary fixed block, the rear ends of the left support plate and the right support plate are respectively arranged together through connecting rod sleeve pins and connecting rod sleeves, the rear ends of the connecting rod sleeves are connected with the connecting rods through connecting rod pins, clamping plate rivet holes at the rear ends of the connecting rods are connected with clamping plate rivet holes at the upper parts of the rear ends of the left support and the right support, and pins penetrate through long waist-shaped holes in the middle of the left support plate and the right support plate to fix the front ends of the left support plate and the right support plate, and another clamping plate rivet penetrates through clamping plate rivet mounting holes at the lower parts of the left support and the right support.
The pushing piece cutting knife transmission mechanism comprises a firing push rod, a firing rod backseat, a firing push plate, a firing spring, a nail pushing plate tension spring, a fixed handle pin, a movable handle tension spring, a firing pin, a left sliding block, a right sliding block and a sliding block spring.
The firing push rod is cylindrical, and the rear end is provided with a firing rod rear seat mounting groove.
The firing bar backseat is rectangular plate shape, and the front end is provided with firing bar installation arch, and the middle part is provided with long kidney slot, and the middle part rear side is provided with control backup pad slip arch, and firing bar backseat rear end upside is provided with the arch, is provided with the round hole in the middle of the arch, and firing bar backseat rear end downside is provided with firing push pedal promotion recess.
The front end of the firing push plate is provided with a firing bar backseat pushing boss, and the rear end is provided with a firing pin mounting hole.
A left bracket mounting bulge is arranged on the left side of the upper end of the left sliding block, a waist-shaped hole is arranged at the front end of the middle part, a movable handle sliding gear clamping groove is arranged on the inner side,
the left side of the upper end of the right sliding block is provided with a right bracket mounting bulge, the front end of the middle part is provided with a waist-shaped hole, and the inner side of the right sliding block is provided with a movable handle sliding gear clamping groove.
The trigger rod rear seat mounting groove at the rear end of the trigger push rod is matched with the trigger rod mounting protrusion at the rear seat of the trigger rod, the left bracket and the right bracket penetrate through the long kidney-shaped groove of the rear seat of the trigger rod through pins to be mounted at two sides of the rear seat of the trigger rod, one end of the nail pushing plate tension spring is hooked in a round hole on the protrusion at the upper side of the rear end of the rear seat of the trigger rod, the other end of the nail pushing plate tension spring is hooked in a nail pushing plate tension spring mounting hole on the rectangular boss at the upper side of the middle part of the right bracket, the trigger spring is mounted on the trigger spring mounting bosses at two sides of the movable handle, the trigger push plate is mounted in the trigger push plate mounting groove at the upper part of the movable handle, and the trigger pin penetrates through the trigger pin mounting hole on the movable handle and the trigger pin mounting hole at the rear end of the trigger push plate to mount the trigger push plate on the movable handle. The left and right bracket mounting bosses on the two sides of the movable handle are respectively arranged in the movable handle mounting hole of the left bracket and the movable handle mounting hole of the right bracket. One end of the movable handle spring is arranged on a movable handle tension spring installation boss of the movable handle, and the other side of the movable handle spring is arranged on a fixed handle pin installation hole of the fixed handle. The left bracket mounting bulge on the left side of the upper end of the left sliding block is mounted in the circular left sliding block mounting groove of the left bracket, one end of the sliding block spring is hooked in the sliding block spring mounting hole of the left bracket, the other end of the sliding block spring is hooked in the kidney-shaped hole on the front end of the middle part of the left sliding block, the right bracket mounting bulge on the left side of the upper end of the right sliding block is mounted in the circular right sliding block mounting groove of the right bracket, one end of the other sliding block spring is hooked in the sliding block spring mounting hole of the right bracket, and the other end of the other sliding block spring is hooked in the kidney-shaped hole on the front end of the middle part of the right sliding block.
The reset mechanism comprises a backset button, a reset button spring, a reset button pin and a safety.
The front end of the backset button is provided with a cylindrical fixed handle installation bulge, the lower end of the middle part of the backset button is provided with a connecting rod button bulge, the rear side of the backset button is provided with a U-shaped groove, and the outer side of the U-shaped groove is provided with a reset button installation column.
The front end of the reset button is provided with a reset button mounting clamping hook, the lower side of the middle part of the reset button is provided with a groove, the groove is provided with a reset button pin mounting hole, and the lower end of the groove is provided with a clamping plate rivet mounting hole.
The front end of the safety is triangular, bosses are arranged on two sides of the safety, and a reset button pin mounting hole is arranged at the rear end of the safety.
The fixed handle installation bulge of the front end of the reset button is installed in the reset button installation hole at the rear part of the fixed handle, the reset button installation hook at the front end of the reset button is installed on the reset button installation column at the outer side of the U-shaped groove of the reset button, the reset button spring and the safety are installed in the groove at the lower side of the reset safety through the reset button pin, and the clamp plate rivet installation hole at the lower end of the reset button is installed on the clamp plate rivet.
The indicating mechanism comprises an indicating needle, a window and an indicating needle spring.
The front end of the indicating needle is provided with an indicating needle spring mounting column, the middle part is provided with a square block, and the rear end is provided with an arc pointer
The pointer spring is installed on the pointer spring erection column on the pointer, and the square block at the middle part of the pointer is installed in the pointer sliding tray on the upper part of the fixed handle to can slide, the window is installed in the window erection tray of the fixed handle, through transparent window, can see the arc pointer of the pointer of below.
The nail pushing device comprises a fixed handle, a nail pushing seat rotary connecting device, a movable handle, a left support, a right support, a nail bin transmission mechanism, a push piece cutting knife transmission mechanism, a reset mechanism and an indicating mechanism, wherein when the nail pushing device is assembled, a closing push rod is installed in a through hole in the middle of the fixed rod and can slide freely, a firing push rod is installed in the through hole in the middle of the closing push rod and can slide freely, a left support plate and a right support plate are installed on two sides of a firing rod rear seat, a left support plate sliding protrusion and a right support plate sliding protrusion arranged on the rear side of the middle of the firing rod rear seat can slide in a firing rod rear seat sliding groove of the left support plate and the right support plate, a left support plate and a right support plate at the upper end of the movable handle push a boss can slide in a movable handle movable groove at the front end of a connecting rod sleeve, a connecting rod pushing boss on the right side of the movable handle pushes against the front end of the connecting rod during movement, and the connecting rod sleeve is installed in the middle of a left slider and right slider. The backing button is installed in the middle of controlling the slider, and under the state of closed movable handle, the protruding top of extension rod button of backing button lower extreme leans on the extension rod, and the groove of reset button downside is installed in extension rod both sides, through splint rivet, will connect the pole and install together with reset button, square protruding in the left backup pad, the top leans on the square piece of pilot pin, and movable handle's left and right sides support mounting boss is installed in fixed handle's movable handle mounting groove.
Principle of operation
When the disposable arc type cutting anastomat is used, firstly, the assembled replaceable nail supporting seat component, the replaceable nail bin component and the replaceable push piece cutting knife component are arranged in the assembled fixed handle, the nail supporting seat rotating connecting device, the movable handle, the left bracket, the right bracket, the nail bin transmission mechanism, the push piece cutting knife transmission mechanism, the reset mechanism and the indicating mechanism, then operation is carried out, a hemorrhoid tissue or a rectal polyp needing to be resected is selected, the movable handle is pressed, at the moment, the right slider bulge of the movable handle slides into the movable handle sliding gear clamping groove of the right slider, meanwhile, the connecting rod of the movable handle pushes the lug boss to push the connecting rod, the connecting rod sleeve, the left supporting plate, the right supporting plate, the rotating fixed block, the closing push rod, the nail bin connecting plate seat, the upper nail bin connecting plate, the lower nail bin connecting plate, the nail bin seat and the nail bin, the distance between the nail near nail bin and the nail supporting seat is checked through the indicating mechanism, if not proper, the reset button is pressed, the lower end of the reset button is enabled to act on the reset button of the right slider, the right slider bulge on the right slider is enabled to be separated from the movable handle sliding gear clamping groove of the right slider under the action of the slider spring, and the nail pushing plate is enabled to slide down. If the cutting position is proper, the movable handle is continuously pressed through the indicating mechanism until the connecting rod and the connecting rod sleeve are in a straight line, a self-locking state is achieved, the movable handle is reset under the action of the movable handle spring, at the moment, the movable handle is ready for cutting and suturing tissues, if the position is incorrect, the reset button is also pressed, the protrusion of the connecting rod button at the lower end of the reset button acts on the connecting rod, and the nail bin is pulled back under the action of the nail pushing plate tension spring, so that the reset effect is achieved. The indication needle is checked by the indication mechanism to indicate that if the cutting position is proper, the movable handle is pressed again, the left slider bulge at the left side of the movable handle slides into the movable handle sliding gear clamping groove of the left slider, under the action of the firing spring, the firing push plate is propped up against the firing push plate pushing groove of the firing bar backseat, when the movable handle is pressed, the firing bar backseat pushing boss at the front end of the firing push plate pushes the firing bar backseat, the firing bar, the pushing plate connecting plate seat, the pushing plate connecting plate, the pushing plate and the cutting knife to complete cutting anastomosis, the reset button is pressed, the extension rod button bulge at the lower end of the withdrawal button acts on the extension rod, under the action of the pushing plate tension spring and the pushing plate connecting plate seat spring, the pushing plate cutting knife is reset, the nail bin is reset, and under the action of the movable handle spring, the movable handle is reset, and the operation is completed. If the operation is not finished, the patient needs to cut a plurality of hemorrhoids or rectal polyps, after taking out the instrument, the assembly disassembly button is pressed downwards, the bulge of the assembly disassembly button is separated from the fixed rod, the assembled replaceable nail seat assembly, the assembled replaceable nail bin assembly and the assembled replaceable push piece cutting knife assembly are rotated, the assembled replaceable nail seat assembly, the assembled replaceable nail bin assembly and the assembled replaceable push piece cutting knife assembly are taken down, and the assembled replaceable nail seat assembly, the assembled replaceable nail bin assembly and the assembled replaceable push piece cutting knife assembly are assembled in the new assembly, so that the operation is continued.
The disposable arc-shaped cutting anastomat is reasonable in design, reasonable in structure and convenient to use, the rotating handle can realize 360-degree rotation of the assembly, arbitrary adjustment of the operation position is realized, and the operation difficulty is reduced; set up three rows of nails in the nail storehouse, the step nail is high, and step face nail storehouse design uses different nail height to sew up, makes the tissue can be faster resume blood supply for the healing of postoperative patient wound, owing to set up removable nail seat, nail storehouse, cutting knife tackle spare, removable subassembly's design has reduced the operation cost, alleviates patient economic burden. The three-gear closed design can better adjust the cutting anastomosis position in the operation, reduces the risk of cutting normal tissues, can be matched with a disposable anorectal selective cutting speculum and an illuminating lamp for use, and better completes the local cutting of the rectal polyp. In the process of cutting and anastomosing the anorectal polyp, an indicating mechanism can be used for checking whether the cutting and anastomosing position is proper or not, and the resetting mechanism is used for resetting, so that the cutting and anastomosing position is adjusted, and the success of the anorectal polyp cutting and anastomosing operation is ensured.
Because the disposable arc-shaped cutting anastomat is provided with the reset mechanism of the disposable arc-shaped cutting anastomat in a matching way, whether the cutting position is proper or not can be checked in the operation process, if not, the reset button is pressed, the lower end of the reset button acts on the reset button boss of the right sliding block, the right sliding block bulge on the right side of the movable handle is separated from the movable handle sliding gear clamping groove of the right sliding block under the action of the sliding block spring, and the nail bin is reset under the action of the nail pushing plate tension spring. After the cutting anastomosis is completed, the reset button is pressed, so that the extension rod button at the lower end of the retraction button is convexly acted on the extension rod, and under the action of the push plate tension spring and the push plate connecting plate seat spring, the push plate cutting knife is reset, and the nail bin is reset, so that the anorectal polyp cutting operation is more convenient and smooth.
The disposable arc-shaped cutting anastomat is suitable for anorectal polyp cutting operation, rectal polyp cutting operation and anorectal hemorrhoid partial excision operation, and the replaceable nail supporting seat, the nail bin and the cutting knife assembly can rotate by 360 degrees, so that the operation position can be adjusted randomly in the operation, and the operation difficulty is reduced. Three rows of nails are arranged in the nail bin, the step nails are high, and after cutting anastomosis is completed, tissues are easier to recover blood supply, so that wound healing of a patient after operation is quickened. Because the replaceable nail supporting seat, the nail bin and the cutting knife assembly are arranged, the operation cost is reduced, and the economic burden of a patient is lightened.
Description of the drawings:
the invention is further described below with reference to the accompanying drawings:
FIG. 1 is an assembly view of a single use arc cutting stapler;
FIG. 2 is a schematic view of a replaceable staple holder assembly of the single use arc cutting stapler;
FIG. 3 is a schematic view of the staple holder support of the single use arc cutting stapler;
FIG. 4 is a schematic view of the staple holder of the single use arc cutting stapler;
FIG. 5 is a schematic view of a replaceable cartridge assembly of the single use arc cutting stapler;
FIG. 6 is a schematic view of the staple cartridge configuration of the single use arc cutting stapler;
FIG. 7 is a schematic view of the staple cartridge configuration of the single use arc cutting stapler;
FIG. 8 is a schematic view of the cartridge housing of the single use arc cutting stapler;
FIG. 9 is a schematic view of the staple cartridge connecting plate holder of the single use arc cutting stapler;
FIG. 10 is a schematic view of a replaceable pusher knife assembly of the single use arc cutting stapler;
FIG. 11 is a schematic view of the cutting blade configuration of the single use arc cutting stapler;
FIG. 12 is a schematic view of a fixed handle structure of a single use arc cutting stapler;
FIG. 13 is a schematic view of a rotary joint of the anvil of the single use arc cutting stapler;
FIG. 14 is a schematic view of the movable handle of the single use arc cutting stapler;
FIG. 15 is a schematic view of the movable handle of the single use arc cutting stapler;
FIG. 16 is a schematic view of the left stand of the single use arc cutting stapler;
FIG. 17 is a schematic view of the right frame construction of the single use arc cutting stapler;
FIG. 18 is a schematic view of a staple cartridge drive mechanism of the single use arc cutting stapler;
FIG. 19 is a schematic view of a pusher knife drive mechanism of the single use arc cutting stapler;
FIG. 20 is a schematic view of the reset mechanism of the single use arc cutting stapler;
fig. 21 is a schematic view of an indicator mechanism of the single use arc cutting stapler.
The specific embodiment is as follows:
referring to fig. 1-21, the single-use arc-shaped cutting anastomat comprises a replaceable nail propping seat assembly 1, a replaceable nail bin assembly 2, a replaceable push-piece cutting knife assembly 3, a fixed handle 4, a nail propping seat rotary connecting device 5, a movable handle 6, a left bracket 7, a right bracket 8, a nail bin transmission mechanism 9, a push-piece cutting knife transmission mechanism 10, a reset mechanism 11 and an indicating mechanism 12.
The replaceable nail supporting seat assembly 1 comprises a nail supporting seat bracket 1-1, a cutter washer 1-2, a nail supporting seat 1-3, a nail bin bracket 1-4, a nail bin bracket cover plate 1-5 and an assembly fixing sleeve 1-6.
The nail supporting seat support 1-1 is arc-shaped, a U-shaped groove 1-1 is arranged in the middle, nail supporting seat mounting grooves 1-1-2 are formed in two sides of the U-shaped groove, positioning pin mounting grooves 1-1-3 are formed in two sides of the arc surface of the nail supporting seat support, and a cutter washer mounting groove 1-1-4 is formed in the inner side of the arc surface of the nail supporting seat support.
The nail propping seat is an arc-shaped 1-3, a U-shaped groove 1-3-1 is arranged in the middle, positioning pin sliding holes 1-3-2 are arranged on two sides of the arc surface of the nail propping seat, and three rows of anastomotic nail forming grooves 1-3-3 are arranged on the arc surface of the nail propping seat.
The upper part of the nail bin bracket 1-4 is arc-shaped, the lower part is circular pipe-shaped, the upper part is arc-shaped and provided with a sliding groove 1-4-1 of an upper nail bin connecting plate and a lower nail bin connecting plate, and one side of the lower circular pipe is provided with a U-shaped groove 1-4-2 for installing a nail bin bracket cover plate. Two square bosses 1-4-3 are arranged at the rear end of the round tube.
The cutter washer 1-2 and the nail supporting seat 1-3 are sequentially arranged in the nail supporting seat support 1-1, the nail supporting seat support 1-1 is connected with the nail bin support 1-4 through a pin, the nail bin support cover 1-5 is arranged in a U-shaped groove 1-4-2 on one side of the lower part of the nail bin support 1-4, and the outer side of the nail bin support is sleeved with the component fixing sleeve 1-6.
The replaceable nail bin assembly 2 comprises a positioning pin 2-1, a nail bin 2-2, a nail bin seat 2-3, a nail bin seat fixing pin 2-4, a lower nail bin connecting plate 2-5, a nail bin connecting plate pin 2-6, a nail bin connecting plate seat 2-7, an upper nail bin connecting plate 2-8 and a nail bin fixing plate 2-9.
The locating pin 2-1 is cylindrical, and the upper end is provided with a cylindrical boss 2-1-1.
The nail bin 2-2 is arc-shaped, positioning pin movable holes 2-2-1 are formed in two sides of the arc, a cutting knife sliding groove 2-2 is formed in the inner side of the arc, three rows of anastomotic nail mounting grooves 2-2-3 distributed in an arc shape are formed in the outer side of the arc, the anastomotic nail mounting holes are in step heights, and U-shaped grooves 2-2-4 are formed in two ends of the arc-shaped surface of the nail bin. The lower end of the nail bin is provided with a cylindrical installation bulge 2-2-5 and an arc bulge 2-2-6.
The nail bin seat 2-3 is arc-shaped, a pushing piece mounting groove 2-3-1 is formed in the middle of the nail bin seat, a cylindrical mounting groove 2-3-2 and an arc-shaped mounting groove 2-3-3 are formed in the upper end of the nail bin seat, a sliding groove 2-3-4 of a pushing piece connecting plate is formed in the lower portion of the nail bin seat, an arc-shaped bulge 2-3-5 is formed in the lower end of the nail bin seat, a nail bin fixing pin hole 2-3-6 is formed in the arc-shaped bulge, and nail bin fixing plate mounting grooves 2-3-7 are formed in two sides of the nail bin seat.
The nail bin fixing plate 2-9 is strip-shaped, and two ends of the nail bin fixing plate are provided with bulges 2-9-1.
The upper nail bin connecting plate 2-8 is arc-shaped, two ends of the upper side of the arc are provided with nail bin fixing pin holes 2-8-1, the lower part is strip-shaped, and one end of the lower part is provided with a nail bin connecting plate pin mounting hole 2-8-2.
The lower nail bin connecting plate 2-5 is arc-shaped, two ends of the upper side of the arc are provided with nail bin fixing pin holes 2-5-1, the lower part is strip-shaped, and one end of the lower part is provided with a nail bin connecting plate pin mounting hole 2-5-2.
The front end of the nail bin connecting plate seat 2-7 is provided with an upper connecting plate mounting groove 2-7-1 and a lower connecting plate mounting groove 2-7-1, the middle part of the front end is provided with a pushing plate connecting plate sliding groove 2-7-2, the middle part of the nail bin connecting plate seat is provided with a pushing plate connecting plate seat sliding groove 2-7-3, and the rear end of the nail bin connecting plate seat is provided with a closing push rod movable connection clamping groove 2-7-4.
The locating pin 2-1 slides in a locating pin movable hole 2-2-1 of the nail bin, a cylindrical installation protrusion 2-2-5 and an arc protrusion 2-2-6 at the lower end of the nail bin 2-2 are installed in a cylindrical installation groove 2-3-2 and an arc installation groove 2-3-3 of the nail bin seat in a matched mode, two sides of the locating pin are fixed by a nail bin fixing plate 2-9, the lower end of the nail bin seat 2-3 is fixedly installed on an upper nail bin connecting plate 2-8 and a lower nail bin connecting plate 2-5 through a nail bin seat fixing pin 2-4, and the upper nail bin connecting plate 2-8 and the lower nail bin connecting plate 2-5 are installed on a nail bin connecting plate seat 2-7 through a nail bin connecting plate pin 2-6.
The replaceable push-piece cutting knife assembly 3 comprises a cutting knife 3-1, a push-piece 3-2, a push-piece connecting plate 3-3, a push-piece connecting plate seat 3-4 and a push-piece connecting plate seat spring 3-5.
The cutting knife 3-1 is arc-shaped, and the lower end is provided with a bulge 3-1-1.
The pushing plate 3-2 is arc-shaped, the upper part is three rows of pushing plate 3-2-1 distributed in arc shape, the lower end is provided with a pushing plate connecting plate mounting groove 3-2-2, and the pushing plate connecting plate mounting groove is provided with pin holes.
The upper end of the pushing piece connecting plate 3-3 is arc-shaped, the lower part is strip-shaped, the upper end is provided with a pin hole, and the lower end is also provided with a pin hole.
The upper end of the push-piece connecting plate seat 3-4 is provided with a push-piece connecting plate mounting groove 3-4-1 and a pin hole.
The cutting knife 3-1 is coated at the front end of the push plate 3-2 through injection molding, the push plate 3-2 is fixedly installed with the push plate connecting plate 3-3 through a pin, and the push plate connecting plate 3-3 is fixedly installed with the push plate connecting plate seat 3-4 through a pin.
When the replaceable nail pushing seat assembly 1, the replaceable nail bin assembly 2 and the replaceable push piece cutting knife assembly 3 are assembled, the push piece 3-2 and the cutting knife 3-1 are installed in the push piece installation groove 2-3-1 of the nail bin seat 2-3, the push piece connecting plate 3-3 penetrates through the push piece connecting plate sliding groove 2-3-4 of the nail bin seat 2-3, the push pieces 3-2-1 distributed in an arc shape on the push piece 3-2 slide in the anastomotic installation groove 2-2-3 distributed in an arc shape on the nail bin 2-2, anastomotic nail anastomosis is pushed, the cutting knife 3-1 slides in the cutting knife sliding groove 2-2-2 on the nail bin 2-2, and tissues are cut. The nail bin 2-2 is fixedly connected with the nail bin seat 2-3 and then slides in the nail-supporting seat mounting grooves 1-1-2 on two sides of the U-shaped groove 1-1-1 of the nail-supporting seat bracket 1-1, the positioning pin 2-1 is mounted in the positioning pin mounting groove 1-1-3 of the nail-supporting seat bracket 1-1, passes through the positioning pin sliding hole 1-3-2 of the nail-supporting seat 1-3 and slides in the positioning pin moving hole 2-2-1 on the nail bin 2-2; the lower part of the nail bin seat 2-3 is arranged in the circular arc running groove at the upper end of the nail bin bracket 1-4 in a matching way. The pushing plate connecting plate 3-3 slides between the upper nail bin connecting plate 2-8 and the lower nail bin connecting plate 2-5, the strip-shaped parts of the pushing plate connecting plate 3-3 penetrate through the circular arc structure at the upper end of the nail bin bracket 1-4 to slide in the tubular structure at the lower part of the nail bin bracket, the nail bin connecting plate seat 2-7 is arranged in the tubular structure of the nail bin bracket 1-4, and the pushing plate connecting plate seat 3-4 and the pushing plate connecting plate seat spring 3-5 are arranged in the pushing plate connecting plate sliding groove 2-7-3.
The front end of the fixed handle 4 is provided with a rotary handle mounting groove 4-1, the rear part of the fixed handle is provided with a backset button mounting hole 4-2, the upper part of the fixed handle 4 is provided with an indicator needle sliding groove 4-3, the rear part of the indicator needle sliding groove 4-3 is provided with a window mounting groove 4-4, the middle part is provided with a movable handle mounting groove 4-5, and the lower part is provided with a fixed handle pin mounting hole 4-6.
The nail-supporting seat rotary connecting device 5 comprises a fixed rod 5-1, a rotary handle 5-2, a component-unloading button spring 5-3, a component-unloading button 5-4 and a fixed sleeve 5-5.
The fixed rod 5-1 is cylindrical, a through hole 5-1-1 is formed in the middle of the fixed rod, a nail bin bracket rotary connection clamping groove 5-1-2 is formed in the front end of the fixed rod, a component unloading button sliding mounting groove 5-1-3 and a component unloading button spring mounting groove 5-1-4 are formed in the outer side of the fixed rod 5-1, and a rotary handle connecting groove 5-1-5 and a rotary handle fixing clamping groove 5-1-6 are formed in the rear portion of the fixed rod.
The front part of the rotary handle 5-2 is provided with a fixed rod installation protrusion 5-2-1, the rear part is provided with a fixed handle installation protrusion 5-2-2, and the surface is provided with anti-skid patterns 5-2-3. The rotary handle consists of a left rotary handle and a right rotary handle.
The de-assembly button 5-4 is provided with a protrusion 5-4-1 and a de-assembly button spring mounting post 5-4-2.
The fixing sleeve 5-5 is tubular, and the upper part is provided with a U-shaped groove 5-5-1.
The component unloading button spring 5-3 is arranged on the component unloading button spring mounting column 5-4-2 of the component unloading button 5-4, the component unloading button 5-4 is arranged in the component unloading button sliding mounting groove 5-1-3 of the fixed rod 5-1, the fixed sleeve 5-5 is sleeved outside the fixed rod 5-1, and the bulge 5-4-1 of the component unloading button 5-4 slides in the U-shaped groove 5-5-1 of the fixed sleeve 5-5. The rotary handle connecting groove 5-1-5 and the rotary handle fixing clamping groove 5-1-6 at the rear end of the fixed rod 5-1 are matched and fixedly arranged on the fixed rod mounting protrusion 5-2-1 of the rotary handle 5-2, and the fixed handle mounting protrusion 5-2-2 at the rear end of the rotary handle 5-2 is matched and arranged in the rotary handle mounting groove 4-1 of the fixed handle 4 and can mutually rotate.
The upper end of the movable handle 6 is provided with a left supporting plate pushing boss 6-1, the upper part is provided with a firing push plate mounting groove 6-2 and a firing pin mounting hole 6-3, the lower part of the firing push plate mounting groove is provided with a left bracket mounting boss 6-5, a right bracket mounting boss 6-6 and a firing spring mounting boss 6-6, the right side of the movable handle 6 is provided with a movable handle tension spring mounting boss 6-7, the right side of the movable handle is provided with a connecting rod pushing boss 6-8, and the lower side of the connecting rod pushing boss 6-8 of the movable handle is provided with a left sliding block bulge 6-4 and a right sliding block bulge 6-9.
The front end of the left bracket 7 is provided with a pin mounting hole 7-1, the upper part of the rear end is provided with a clamping plate rivet mounting hole 7-2, the middle is provided with a long kidney-shaped groove 7-3, the front part of the long kidney-shaped groove is provided with a sliding block spring mounting hole 7-4, the front lower side of the sliding block spring mounting hole 7-4 is provided with a movable handle mounting hole 7-5, the middle and rear part of the upper side of the left bracket is provided with a left sliding block mounting groove 7-6, and the lower part of the upper side of the left bracket is provided with a clamping plate rivet mounting hole 7-7.
The front end of the right support 8 is provided with a pin mounting hole 8-1, the upper part of the rear end is provided with a clamping plate rivet mounting hole 8-2, the middle part is provided with a long kidney-shaped groove 8-3, the front part of the long kidney-shaped groove is provided with a sliding block spring mounting hole 8-4, the front lower side of the sliding block spring mounting hole 8-4 is provided with a movable handle mounting hole 8-5, the middle rear part of the upper side of the right support is provided with a right sliding block mounting groove 8-6, the lower part is provided with a clamping plate rivet mounting hole 8-7, and the middle of the upper side is provided with a nail pushing plate tension spring mounting hole 8-8.
The nail bin transmission mechanism 9 comprises a closing push rod 9-1, a rotary fixing block 9-2, a right support plate 9-3, a connecting rod sleeve 9-4, a connecting rod 9-5, a clamping plate rivet 9-6, a connecting rod pin 9-7, a left support plate 9-8 and a connecting rod sleeve pin 9-9.
The closing push rod 9-1 is cylindrical, a through hole 9-1-1 is arranged in the middle, a nail bin connecting plate seat movable connecting buckle 9-2 is arranged at the front end, and a rotary fixing block connecting clamping groove 9-3 is arranged at the rear end.
The rotary fixing block 9-2 is cylindrical, sliding planes 9-2-1 are arranged on two sides of the rotary fixing block, a through hole 9-2-2 is arranged in the middle of the rotary fixing block, a closed push rod installation protrusion 9-2-3 is arranged at the front end of the rotary fixing block, and T-shaped left support plate clamping grooves 9-2-4 and T-shaped right support plate clamping grooves 9-2-5 are respectively arranged on two sides of the rear end of the rotary fixing block.
The front end of the left supporting plate 9-8 is provided with a T-shaped mounting buckle 9-8-1, the middle is provided with a long kidney-shaped groove 9-8-2, the rear part of the long kidney-shaped groove is provided with a firing bar rear seat sliding groove 9-8-3, the rear end is provided with a bar connecting sleeve pin mounting hole 9-8-4, and the upper end is provided with a square bulge 9-8-5.
The front end of the right supporting plate 9-3 is provided with a T-shaped mounting buckle 9-3-1, the middle is provided with a long kidney-shaped groove 9-3-2, the rear part of the long kidney-shaped groove is provided with a firing bar rear seat sliding groove 9-3-3, and the rear end is provided with a connecting bar sleeve pin mounting hole 9-3-4.
The front part of the connecting rod sleeve 9-4 is provided with a movable handle movable groove 9-4-1, the front end is provided with a connecting rod sleeve pin mounting hole 9-4-2, and the rear end is provided with a connecting rod pin mounting hole 9-4-3 and a connecting rod mounting groove 9-4-4.
The front end of the connecting rod 9-5 is provided with a connecting rod sleeve mounting protrusion 9-5-1 and a connecting rod pin mounting hole 9-5-2, and the rear end is provided with a clamping plate rivet mounting hole 9-5-3.
The rotary fixing block connecting clamping groove 9-3 at the rear end of the rotary push rod 9-1 is arranged on the rotary fixing block closing push rod mounting protrusion 9-2-3, the T-shaped mounting clamping buckle 9-8-1 of the left support plate and the T-shaped mounting clamping buckle 9-3-1 of the right support plate are respectively arranged in the T-shaped left support plate clamping groove 9-2-4 and the T-shaped right support plate clamping groove 9-2-5 of the rotary fixing block, the rear ends of the left support plate and the right support plate are arranged together with the connecting rod sleeve 9-4 through the connecting rod sleeve pin 9-9, the rear end of the connecting rod sleeve 9-4 is connected with the connecting rod 9-5 through the connecting rod pin 9-7, the clamping plate rivet holes 9-5-3 at the rear end of the connecting rod 9-5 are connected with the left support 7 and the clamping plate rivet holes 7-2 and 8-2 at the upper part of the rear end of the right support 8 through the clamping plate rivet 9-6, and the pins penetrate through the long waist holes 9-8-2 in the middle of the left support plate and the long waist hole 9-3-2 in the middle of the right support plate to fix the front end of the left support plate 9-8 and the right support plate through the other clamping plate rivet 7 and the lower part of the clamping plate rivet 7-7.
The push piece cutting knife transmission mechanism 10 comprises a firing push rod 10-1, a firing rod back seat 10-2, a firing push plate 10-3, a firing spring 10-4, a nail pushing plate tension spring 10-5, a fixed handle pin 10-6, a movable handle tension spring 10-7, a firing pin 10-8, a left sliding block 10-9, a right sliding block 10-10 and a sliding block spring 10-11.
The firing push rod 10-1 is cylindrical, and the rear end is provided with a firing rod rear seat mounting groove 10-1-1.
The firing bar backseat 10-2 is in a rectangular plate shape, the front end is provided with a firing bar installation protrusion 10-2-1, the middle part is provided with a long kidney-shaped groove 10-2-3, the middle part rear side is provided with a left supporting plate and right supporting plate sliding protrusion 10-2-4, the upper side of the firing bar backseat rear end is provided with a protrusion 10-2-5, the middle of the protrusion is provided with a round hole 10-2-6, and the lower side of the firing bar backseat rear end is provided with a firing push plate pushing groove 10-2-7.
The front end of the firing push plate 10-3 is provided with a firing bar backseat pushing boss 10-3-1, and the rear end is provided with a firing pin mounting hole 10-3-2.
The left side of the upper end of the left sliding block 10-9 is provided with a left bracket mounting bulge 10-9-1, the front end of the middle part is provided with a waist-shaped hole 10-9-2, the inner side is provided with a movable handle sliding gear clamping groove 10-9-3,
the left side of the upper end of the right sliding block 10-10 is provided with a right bracket mounting protrusion 10-10-1, the front end of the middle part is provided with a kidney-shaped hole 10-10-2, and the inner side is provided with a movable handle sliding gear clamping groove 10-10-3.
The trigger rod rear seat mounting groove 10-1-1 at the rear end of the trigger push rod 10-1 is mounted on the trigger rod mounting protrusion 10-2-1 of the trigger rod rear seat 10-2 in a matched manner, the left bracket and the right bracket penetrate through the long waist-shaped grooves 10-2-3 of the trigger rod rear seat 10-2 through pins to be mounted on two sides of the trigger rod rear seat 10-2, one end of the trigger plate tension spring 10-5 is hooked in the round hole 10-2-6 on the upper side protrusion 10-2-5 at the rear end of the trigger rod rear seat 10-2, the other end is hooked in the trigger plate tension spring mounting hole 8-8 on the rectangular boss at the upper side of the middle part of the right bracket 8, the trigger spring 10-4 is mounted on the trigger spring mounting bosses 6-6 at two sides of the movable handle 6, the trigger plate 10-3 is mounted in the trigger plate mounting groove 6-2 at the upper part of the movable handle 6, and the trigger pin 10-8 penetrates through the pin mounting hole 6-3 on the movable handle 6 and the trigger pin mounting hole 10-3 at the rear end of the trigger plate 10-3 to be mounted on the movable handle 6. Left and right bracket mounting bosses 6-5 on both sides of the movable handle 6 are respectively mounted in movable handle mounting holes 7-5 of the left bracket 7 and movable handle mounting holes 8-5 of the right bracket 8. One end of the movable handle spring 10-7 is arranged on the movable handle tension spring mounting boss 6-7 of the movable handle 6, and the other side is arranged on the fixed handle pin 10-6 on the fixed handle pin mounting hole 4-6 of the fixed handle 4. The left bracket mounting protrusion 10-9-1 on the left side of the upper end of the left sliding block 10-9 is mounted in the circular left sliding block mounting groove 7-6 of the left bracket 7, one end of the sliding block spring 10-11 is hooked in the sliding block spring mounting hole 7-4 of the left bracket 7, the other end is hooked in the kidney-shaped hole 10-9-2 on the front end of the middle part of the left sliding block 10-9, the right bracket mounting protrusion 10-10-1 on the left side of the upper end of the right sliding block 10-10 is mounted in the circular right sliding block mounting groove 8-6 of the right bracket 8, one end of the other sliding block spring 10-11 is hooked in the sliding block spring mounting hole 8-4 of the right bracket 8, and the other end is hooked in the kidney-shaped hole 10-10-2 on the front end of the middle part of the right sliding block 10-10.
The reset mechanism 11 comprises a reset button 11-1, a reset button spring 11-2, a reset button 11-3, a reset button pin 11-4 and a safety 11-5.
The front end of the back position button 11-1 is provided with a cylindrical fixed handle mounting protrusion 11-1-1, the lower end of the middle part of the back position button is provided with a connecting rod button protrusion 11-1-2, the rear side is provided with a U-shaped groove 11-1-3, and the outer side of the U-shaped groove is provided with a reset button mounting column 11-1-4.
The front end of the reset button 11-3 is provided with a reset button mounting hook 11-3-1, the lower side of the middle part of the reset button is provided with a groove 11-3-2, the groove is provided with a reset button pin mounting hole 11-3-3, and the lower end of the groove is provided with a clamping plate rivet mounting hole 11-3-4.
The front end of the safety 11-5 is triangular, two sides of the safety are provided with bosses 11-5-1, and the rear end of the safety is provided with reset button pin mounting holes 11-5-2.
The fixed handle mounting protrusion 11-1-1 at the front end of the reset button 11-1 is mounted in the reset button mounting hole 4-2 at the rear of the fixed handle, the reset button mounting hook 11-3-1 at the front end of the reset button 11-3 is mounted on the reset button mounting column 11-1-4 outside the reset button U-shaped groove 11-1-3, the reset button spring 11-2 and the safety 11-5 are mounted in the groove 11-3-2 at the lower side of the reset safety 11-3 through the reset button pin 11-4, and the clamp plate rivet mounting hole 11-3-4 at the lower end of the reset button 11-3 is mounted on the clamp plate rivet 9-6.
The indicating mechanism 12 includes an indicating needle 12-1, a window 12-2, and an indicating needle spring 12-3.
The front end of the indicating needle 12-1 is provided with an indicating needle spring mounting column 12-1-1, the middle part is provided with a square block 12-1-2, and the rear end is provided with an arc pointer 12-1-3
The pointer spring 12-3 is mounted on the pointer spring mounting column 12-1-1 on the pointer, the square block 12-1-2 in the middle of the pointer is mounted in the pointer sliding groove 4-3 on the upper part of the fixed handle 4 and can slide, the window is mounted in the window mounting groove 4-4 of the fixed handle 4, and the arc pointer 12-1-3 of the pointer 12-1 below can be seen through the transparent window 12-2.
When the fixed handle 4, the nail supporting seat rotary connecting device 5, the movable handle 6, the left support 7, the right support 8, the nail bin transmission mechanism 9, the push-piece cutter transmission mechanism 10, the reset mechanism 11 and the indication mechanism 12 are assembled, the closing push rod 9-1 is installed in the through hole 5-1-1 in the middle of the fixed rod 5-1 and can slide freely, the firing push rod 10-1 is installed in the through hole 9-1 in the middle of the closing push rod 9-1 and can slide freely, the left support plate 9-8 and the right support plate 9-3 are installed on two sides of the firing rod backseat 10-2, the left support plate sliding protrusion 10-2-4 arranged on the rear side of the middle of the firing rod backseat 10-2 can slide in the firing rod backseat sliding grooves 9-8-3 and 9-3-3 of the left support plate 9-8 and the right support plate 9-3, the left support plate pushing boss 6-1 at the upper end of the movable handle 6 can slide in the movable handle movable groove 9-4-1 in the front end of the connecting rod sleeve 9-4, and the connecting rod pushing boss 6-8 at the right side of the movable handle pushes the connecting rod to lean against the front end 9-5 and the connecting rod 10-10 and the middle connecting rod 10-10 can be movably installed on the connecting rod. The retraction button 11-1 is arranged between the left slider 10-9 and the right slider 10-10, the extension rod button bulge 11-1-2 at the lower end of the retraction button 11-1 is propped against the extension rod 9-5 in the state of closing the movable handle 6, the groove 11-3-2 at the lower side of the reset button 11-3 is arranged at two sides of the extension rod 9-5, the extension rod 9-5 and the reset button 11-3 are arranged together through the clamping plate rivet 9-6, the square bulge 9-8-5 on the left support plate 9-8 is propped against the square block 12-1-2 of the indicator needle 12-1, and the left and right support mounting bosses 6-5 of the movable handle 6 are arranged in the movable handle mounting grooves 4-5 of the fixed handle.
When the disposable arc-shaped cutting anastomat is used, firstly, the assembled replaceable nail supporting seat component 1, the replaceable nail bin component 2 and the replaceable push-piece cutting knife component 3 are put into the assembled fixed handle 4, the nail supporting seat rotating connecting device 5, the movable handle 6, the left bracket 7, the right bracket 8, the nail bin transmission mechanism 9, the push-piece cutting knife transmission mechanism 10, the reset mechanism 11 and the indicating mechanism 12, then operation is carried out, a hemorrhoids tissue or a rectal polyp to be resected is selected, the movable handle is pressed, at the moment, the right slider bulge 6-9 of the movable handle 6 slides into the movable handle sliding gear clamping groove 10-10-3 of the right slider 10-10, meanwhile, a connecting rod pushing boss 6-8 of the movable handle 6 pushes a connecting rod 9-5, a connecting rod sleeve 9-4, a left supporting plate 9-8, a right supporting plate 9-3, a rotary fixing block 9-2, a closing push rod 9-1, a nail bin connecting plate seat 2-7, an upper nail bin connecting plate 2-8, a lower nail bin connecting plate 2-5, a nail bin seat 2-3 and a nail bin 2-2, the distance between the nail bin 2-2 and a nail abutting seat 1-3 is pulled, whether the cutting position is proper or not is checked, if not, a reset button 11-3 is pressed, the lower end of the reset button 11-1 is enabled to act on a reset button boss 10-10-4 of a right sliding block 10-10, under the action of a sliding block spring 10-11, a right sliding block boss 6-9 on the right side of the movable handle is enabled to be separated from a movable handle sliding gear clamping groove 10-10-3 of the right sliding block 10-10, and under the action of a nail pushing plate tension spring, if the cutting position is proper, the movable handle 6 is continuously pressed until the extension rod 9-5 and the extension rod sleeve 9-4 are in a straight line, a self-locking state is achieved, the movable handle 6 is reset under the action of the movable handle spring 10-7, at the moment, the preparation is ready for cutting the suture tissue, if the position is incorrect, the reset button 11-3 is also pressed, the extension rod button bulge 11-1-2 at the lower end of the withdrawal button 11-1 acts on the extension rod, and the nail bin is pulled back under the action of the nail pushing plate tension spring, so that the resetting effect is achieved. If the cutting position is proper, the movable handle 6 is pressed again, the left slider bulge 6-4 on the left side of the movable handle slides into the movable handle sliding gear clamping groove 10-9-3 of the left slider 10-9, under the action of the firing spring, the firing push plate is propped upwards against the firing push plate pushing groove 10-2-7 of the firing rod backseat 10-2, when the movable handle 6 is pressed, the firing rod backseat pushing boss 10-3-1 on the front end of the firing push plate 10-3 pushes the firing rod backseat 10-2, the firing rod 10-1, the push plate connecting plate seat 3-4, the push plate connecting plate 3-3, the push plate 3-2 and the cutting knife 3-1, cutting anastomosis is completed, the reset button 11-3 is pressed, the extension rod button bulge 11-1-2 on the lower end of the reset button 11-1 acts on the extension rod 9-5 under the action of the push plate tension spring 10-5 and the push plate connecting plate seat spring 3-5, the cutting knife 3-1 is reset, the nail bin 2-2 is reset, and the operation handle 10-7 is reset under the action of the movable handle, and the operation is completed. If the operation is not finished, the patient needs to cut a plurality of hemorrhoids or rectal polyps, after taking out the instrument, the assembly disassembly button 5-4 is pressed downwards, the bulge 5-4-1 of the assembly disassembly button is separated from the fixed rod 5-1, the assembled replaceable nail seat assembly 1, the assembled replaceable nail bin assembly 2 and the assembled replaceable push piece cutting knife assembly 3 are rotated, the replaceable nail seat assembly 1, the assembled replaceable nail bin assembly 2 and the assembled replaceable push piece cutting knife assembly 3 are taken down, and the operation is continued.

Claims (10)

1. The disposable arc-shaped cutting anastomat is characterized by comprising a replaceable nail pushing seat assembly, a replaceable nail bin assembly, a replaceable push-piece cutting knife assembly, a fixed handle, a nail pushing seat rotary connecting device, a movable handle, a left bracket, a right bracket, a nail bin transmission mechanism, a push-piece cutting knife transmission mechanism, a reset mechanism and an indication mechanism;
the replaceable nail supporting seat assembly comprises a nail supporting seat bracket, a cutter washer, a nail supporting seat, a nail bin bracket cover plate and an assembly fixing sleeve;
the nail supporting seat support is arc-shaped, a U-shaped groove is formed in the middle of the nail supporting seat support, nail supporting seat mounting grooves are formed in two sides of the U-shaped groove, positioning pin mounting grooves are formed in two sides of the arc surface of the nail supporting seat support, and a cutter washer mounting groove is formed in the inner side of the arc surface of the nail supporting seat support;
the nail propping seat is arc-shaped, a U-shaped groove is arranged in the middle, positioning pin sliding holes are arranged on two sides of the arc surface of the nail propping seat, and an anastomotic nail forming groove is arranged on the arc surface of the nail propping seat;
the upper part of the nail bin bracket is arc-shaped, the lower part of the nail bin bracket is circular-tube-shaped, the upper arc-shaped part is provided with a sliding groove for connecting an upper nail bin with a lower nail bin, one side of the circular tube at the lower part is provided with a U-shaped groove for installing a cover plate of the nail bin bracket, and the rear end of the circular tube is provided with a square boss;
The cutter washer and the nail propping seat are sequentially arranged in a nail propping seat support, the nail propping seat support is connected with a nail bin support through a pin, a nail bin support cover is arranged in a U-shaped groove at one side of the lower part of the nail bin support, and an assembly fixing sleeve is sleeved at the outer side of the nail bin support;
the replaceable nail bin assembly comprises a positioning pin, a nail bin seat fixing pin, a lower nail bin connecting plate, a nail bin connecting plate pin, a nail bin connecting plate seat, an upper nail bin connecting plate and a nail bin fixing plate;
the positioning pin is cylindrical, and a cylindrical boss is arranged at the upper end of the positioning pin;
the nail bin is arc-shaped, positioning pin movable holes are formed in two sides of the arc, a cutting knife sliding groove is formed in the inner side of the arc, anastomotic nail installation grooves distributed in an arc shape are formed in the outer side of the arc, the anastomotic nail installation holes are of step heights, U-shaped grooves are formed in two ends of the arc-shaped surface of the nail bin, and a cylindrical installation protrusion and an arc-shaped protrusion are arranged at the lower end of the nail bin;
the nail bin seat is arc-shaped, a push piece mounting groove is formed in the middle of the nail bin seat, a cylindrical mounting groove and an arc-shaped mounting groove are formed in the upper end of the nail bin seat, a sliding groove of a push piece connecting plate is formed in the lower portion of the nail bin seat, an arc-shaped bulge is formed in the lower end of the nail bin seat, a nail bin fixing pin hole is formed in the arc-shaped bulge, and nail bin fixing plate mounting grooves are formed in two sides of the nail bin seat;
The nail bin fixing plate is strip-shaped, and two ends of the nail bin fixing plate are provided with bulges;
the upper nail bin connecting plate is arc-shaped, two ends of the upper side of the arc are provided with nail bin fixing pin holes, the lower part of the upper nail bin connecting plate is strip-shaped, and one end of the lower part of the upper nail bin connecting plate is provided with a nail bin connecting plate pin mounting hole;
the lower nail bin connecting plate is arc-shaped, two ends of the upper side of the arc are provided with nail bin fixing pin holes, the lower part is strip-shaped, and one end of the lower part is provided with a nail bin connecting plate pin mounting hole;
the front end of the nail bin connecting plate seat is provided with an upper connecting plate installing groove and a lower connecting plate installing groove, the middle part of the front end is provided with a push plate connecting plate sliding groove, the middle part of the nail bin connecting plate seat is provided with a push plate connecting plate seat sliding groove, and the rear end of the nail bin connecting plate seat is provided with a closed push rod movable connecting clamping groove;
the positioning pin slides in the positioning pin movable hole of the nail bin, the cylindrical installation bulge and the arc bulge at the lower end of the nail bin are installed in the cylindrical installation groove and the arc installation groove of the nail bin seat in a matched manner, the two sides of the positioning pin are fixed by the nail bin fixing plate, the lower end of the nail bin seat is fixedly installed on the upper nail bin connecting plate and the lower nail bin connecting plate through the nail bin seat fixing pin, and the upper nail bin connecting plate and the lower nail bin connecting plate are installed on the nail bin connecting plate seat through the nail bin connecting plate pin;
the replaceable push-piece cutting knife assembly comprises a cutting knife, a push-piece connecting plate seat and a push-piece connecting plate seat spring;
The pushing plate is arc-shaped, the upper part of the pushing plate is arc-shaped pushing nail plates, the lower end of the pushing plate is provided with a pushing plate connecting plate mounting groove, and the pushing plate connecting plate mounting groove is provided with a pin hole;
the upper end of the push plate connecting plate is arc-shaped, the lower part is strip-shaped, the upper end is provided with a pin hole, and the lower end is also provided with a pin hole;
the upper end of the push-piece connecting plate seat is provided with a push-piece connecting plate mounting groove and a pin hole;
the cutting knife is coated at the front end of the push plate through injection molding, the push plate is fixedly installed with the push plate connecting plate through a pin, and the push plate connecting plate is fixedly installed with the push plate connecting plate seat through a pin;
the front end of the fixed handle is provided with a rotary handle mounting groove, the rear part of the fixed handle is provided with a withdrawal button mounting hole, the upper part of the fixed handle is provided with an indicator sliding groove, the rear part of the indicator sliding groove is provided with a window mounting groove, the middle part of the indicator sliding groove is provided with a movable handle mounting groove, and the lower part of the indicator sliding groove is provided with a fixed handle pin mounting hole;
the rotary connecting device of the nail supporting seat comprises a fixed rod, a rotary handle, a component unloading button spring, a component unloading button and a fixed sleeve;
the fixing rod is cylindrical, a through hole is formed in the middle of the fixing rod, a nail bin bracket rotary connection clamping groove is formed in the front end of the fixing rod, a component unloading button sliding mounting groove and a component unloading button spring mounting groove are formed in the outer side of the fixing rod, and a rotary handle connecting groove and a rotary handle fixing clamping groove are formed in the rear portion of the fixing rod;
The front part of the rotary handle is provided with a fixed rod mounting bulge, the rear part of the rotary handle is provided with a fixed handle mounting bulge, the surface of the rotary handle is provided with anti-skid patterns, and the rotary handle consists of a left rotary handle and a right rotary handle;
the assembly disassembly button is provided with a bulge and an assembly disassembly button spring mounting column;
the fixed sleeve is tubular, and the upper part of the fixed sleeve is provided with a U-shaped groove;
the assembly unloading button spring is arranged on an assembly unloading button spring mounting column of the assembly unloading button, the assembly unloading button is arranged in an assembly unloading button sliding mounting groove of the fixed rod, the fixed sleeve is sleeved on the outer side of the fixed rod, and a bulge of the assembly unloading button slides in a U-shaped groove of the fixed sleeve; the rotary handle connecting groove and the rotary handle fixing clamping groove at the rear end of the fixed rod are matched and fixedly arranged on the fixed rod mounting protrusion of the rotary handle, and the fixed handle mounting protrusion at the rear end of the rotary handle is matched and arranged in the rotary handle mounting groove of the fixed handle and can mutually rotate;
the upper end of the movable handle is provided with a left supporting plate pushing boss and a right supporting plate pushing boss, the upper part of the movable handle is provided with a firing push plate mounting groove and a firing pin mounting hole, the lower part of the firing push plate mounting groove is provided with a left bracket mounting boss and a right bracket mounting boss, and a firing spring mounting boss, the right side of the movable handle is provided with a movable handle tension spring mounting boss, the right side of the movable handle is provided with a connecting rod pushing boss, and the lower side of the connecting rod pushing boss of the movable handle is provided with a left sliding block bulge and a right sliding block bulge;
The front end of the left bracket is provided with a pin mounting hole, the upper part of the rear end is provided with a clamping plate rivet mounting hole, the middle part of the left bracket is provided with a long kidney-shaped groove, the front part of the long kidney-shaped groove is provided with a sliding block spring mounting hole, the lower side of the front part of the sliding block spring mounting hole is provided with a movable handle mounting hole, the middle rear part of the upper side of the left bracket is provided with a left sliding block mounting groove, and the lower part of the upper side of the left bracket is provided with a clamping plate rivet mounting hole;
the front end of the right bracket is provided with a pin mounting hole, the upper part of the rear end is provided with a clamping plate rivet mounting hole, the middle part is provided with a long kidney-shaped groove, the front part of the long kidney-shaped groove is provided with a sliding block spring mounting hole, the front lower side of the sliding block spring mounting hole is provided with a movable handle mounting hole, the middle rear part of the upper side of the right bracket is provided with a right sliding block mounting groove, the lower part is provided with a clamping plate rivet mounting hole, and the middle of the upper side is provided with a nail pushing plate tension spring mounting hole;
the nail bin transmission mechanism comprises a closing push rod, a rotary fixing block, a right support plate, a rod receiving sleeve, a connecting rod, a clamping plate rivet, a rod receiving pin, a left support plate and a connecting rod sleeve pin;
the closing push rod is cylindrical, a through hole is formed in the middle of the closing push rod, a nail bin connecting plate seat movable connecting buckle is arranged at the front end of the closing push rod, and a rotary fixing block connecting clamping groove is formed in the rear end of the closing push rod;
the rotary fixing block is cylindrical, sliding planes are arranged on two sides of the rotary fixing block, a through hole is formed in the middle of the rotary fixing block, a closed push rod installation protrusion is arranged at the front end of the rotary fixing block, and T-shaped left and right support plate clamping grooves are formed in two sides of the rear end of the rotary fixing block;
The front end of the left support plate is provided with a T-shaped mounting buckle, the middle is provided with a long kidney-shaped groove, the rear part of the long kidney-shaped groove is provided with a firing bar rear seat sliding groove, the rear end is provided with a bar connecting sleeve pin mounting hole, and the upper end is provided with a square bulge;
the front end of the right supporting plate is provided with a T-shaped mounting buckle, the middle is provided with a long kidney-shaped groove, the rear part of the long kidney-shaped groove is provided with a firing bar rear seat sliding groove, and the rear end is provided with a connecting bar sleeve pin mounting hole;
the front part of the connecting rod sleeve is provided with a movable handle movable groove, the front end of the connecting rod sleeve is provided with a connecting rod sleeve pin mounting hole, and the rear end of the connecting rod sleeve is provided with a connecting rod pin mounting hole and a connecting rod mounting groove;
the front end of the connecting rod is provided with a connecting rod sleeve mounting protrusion and a connecting rod pin mounting hole, and the rear end of the connecting rod is provided with a clamping plate rivet mounting hole;
the rotary fixing block connecting clamping groove at the rear end of the closed push rod is arranged on the closed push rod mounting protrusion of the rotary fixing block, the U-shaped mounting buckles of the left support plate and the right support plate are respectively arranged in the T-shaped left support plate clamping groove and the T-shaped right support plate clamping groove of the rotary fixing block, the rear ends of the left support plate and the right support plate are respectively arranged together through a connecting rod sleeve pin and a connecting rod sleeve, the rear ends of the connecting rod sleeve are connected with the connecting rod through a connecting rod pin, a clamping plate rivet hole at the rear end of the connecting rod is connected with clamping plate rivet holes at the upper parts of the rear ends of the left support and the right support, a pin penetrates through a long waist-shaped hole in the middle of the left support plate and the right support plate to fix the front ends of the left support plate and the right support plate, and the other clamping plate rivet penetrates through clamping plate rivet mounting holes at the lower parts of the left support and the right support;
The pushing piece cutting knife transmission mechanism comprises a firing push rod, a firing rod backseat, a firing push plate, a firing spring, a nail pushing plate tension spring, a fixed handle pin, a movable handle tension spring, a firing pin, a left sliding block, a right sliding block and a sliding block spring;
the firing push rod is cylindrical, and the rear end of the firing push rod is provided with a firing rod rear seat mounting groove;
the back seat of the firing bar is in a rectangular plate shape, the front end of the back seat is provided with a firing bar installation bulge, the middle part of the back seat is provided with a long kidney-shaped groove, the back side of the middle part of the back seat is provided with a left supporting plate sliding bulge and a right supporting plate sliding bulge, the upper side of the back end of the back seat of the firing bar is provided with a bulge, the middle of the bulge is provided with a round hole, and the lower side of the back end of the back seat of the firing bar is provided with a firing push plate pushing groove;
the front end of the firing push plate is provided with a firing bar backseat pushing boss, and the rear end of the firing push plate is provided with a firing pin mounting hole;
the left side of the upper end of the left sliding block is provided with a left bracket mounting bulge, the front end of the middle part is provided with a waist-shaped hole, and the inner side of the left sliding block is provided with a movable handle sliding gear clamping groove;
the left side of the upper end of the right sliding block is provided with a right bracket mounting bulge, the front end of the middle part is provided with a waist-shaped hole, and the inner side of the right sliding block is provided with a movable handle sliding gear clamping groove;
the mounting groove of the back seat of the firing bar at the back end of the firing push rod is matched and mounted on the mounting bulge of the firing bar at the back seat of the firing bar, the left bracket and the right bracket pass through the long waist-shaped groove of the back seat of the firing bar through pins and are mounted at two sides of the back seat of the firing bar, one end of the nail pushing plate tension spring is hooked in a round hole on the bulge at the upper side of the back end of the back seat of the firing bar, the other end is hooked in a nail pushing plate tension spring mounting hole on the rectangular boss at the upper side of the middle part of the right bracket, the firing spring is arranged on firing spring mounting bosses at two sides of the movable handle, the firing push plate is arranged in a firing push plate mounting groove at the upper part of the movable handle, and the firing pin penetrates through a firing pin mounting hole on the movable handle and a firing pin mounting hole at the rear end of the firing push plate to mount the firing push plate on the movable handle;
The left and right bracket mounting bosses on two sides of the movable handle are respectively arranged in the movable handle mounting hole of the left bracket and the movable handle mounting hole of the right bracket; one end of the movable handle spring is arranged on a movable handle tension spring installation boss of the movable handle, and the other side of the movable handle spring is arranged on a fixed handle pin installation hole of the fixed handle; the left bracket mounting bulge on the left side of the upper end of the left sliding block is mounted in the circular left sliding block mounting groove of the left bracket, one end of the sliding block spring is hooked in the sliding block spring mounting hole of the left bracket, the other end of the sliding block spring is hooked in the kidney-shaped hole at the front end of the middle part of the left sliding block, the right bracket mounting bulge on the left side of the upper end of the right sliding block is mounted in the circular right sliding block mounting groove of the right bracket, one end of the other sliding block spring is hooked in the sliding block spring mounting hole of the right bracket, and the other end of the other sliding block spring is hooked in the kidney-shaped hole at the front end of the middle part of the right sliding block;
the reset mechanism comprises a backset button, a reset button spring, a reset button pin and a safety;
the front end of the back-position button is provided with a cylindrical fixed handle mounting bulge, the lower end of the middle part of the back-position button is provided with a connecting rod button bulge, the rear side of the back-position button is provided with a U-shaped groove, and the outer side of the U-shaped groove is provided with a reset button mounting column;
The front end of the reset button is provided with a reset button mounting clamping hook, the lower side of the middle part of the reset button is provided with a groove, the groove is provided with a reset button pin mounting hole, and the lower end of the groove is provided with a clamping plate rivet mounting hole;
the fixed handle mounting bulge at the front end of the reset button is arranged in the reset button mounting hole at the rear part of the fixed handle, the reset button mounting clamping hook at the front end of the reset button is arranged on the reset button mounting column at the outer side of the U-shaped groove of the reset button, the reset button spring and the safety are arranged in the groove at the lower side of the reset safety through the reset button pin, and the clamping plate rivet mounting hole at the lower end of the reset button is arranged on the clamping plate rivet;
the indicating mechanism comprises an indicating needle, a window and an indicating needle spring;
the front end of the indicating needle is provided with an indicating needle spring mounting column, the middle part is provided with a square block, and the rear end is provided with an arc pointer
The pointer spring is installed on the pointer spring erection column on the pointer, and the square block at the middle part of the pointer is installed in the pointer sliding tray on the upper part of the fixed handle to can slide, the window is installed in the window erection tray of the fixed handle, through transparent window, can see the arc pointer of the pointer of below.
2. The single use arcuate cutting stapler as set forth in claim 1, wherein,
When the replaceable nail pushing seat assembly, the replaceable nail bin assembly and the replaceable push piece cutting knife assembly are assembled, the push piece cutting knife is arranged in a push piece installation groove of the nail bin seat, a push piece connection plate penetrates through a push piece connection plate sliding groove of the nail bin seat, push pieces distributed in an arc shape on the push piece slide in an anastomotic nail installation groove distributed in an arc shape on the nail bin to push anastomoses, the cutting knife slides in the cutting knife sliding groove on the nail bin to cut tissues, the nail bin is fixedly connected with the nail bin seat and then slides in nail pushing seat installation grooves on two sides of a U-shaped groove of a nail pushing seat support, and a positioning pin is arranged in a positioning pin installation groove of the nail pushing seat support, penetrates through a positioning pin sliding hole of the nail pushing seat and slides in a positioning pin movable hole on the nail bin; the lower part of the nail bin seat is matched and installed in an arc-shaped running groove at the upper end of the nail bin support, the push plate connecting plate slides between the upper nail bin connecting plate and the lower nail bin connecting plate, the strip-shaped parts of the upper part and the lower part pass through the arc-shaped structure at the upper end of the nail bin support to slide in a tubular structure at the lower part of the upper part, the nail bin connecting plate seat is installed in the tubular structure of the nail bin support, and the push plate connecting plate seat spring are installed in the push plate connecting plate sliding groove.
3. The single use arcuate cutting stapler as set forth in claim 1, wherein,
The nail pushing device comprises a fixed handle, a nail pushing seat rotary connecting device, a movable handle, a left support, a right support, a nail bin transmission mechanism, a push-piece cutting knife transmission mechanism, a reset mechanism and an indicating mechanism, wherein when the nail pushing device is assembled, a closing push rod is installed in a through hole in the middle of the fixed rod and can slide freely, a firing push rod is installed in the through hole in the middle of the closing push rod and can slide freely, a left supporting plate and a right supporting plate are installed on two sides of a firing rod backseat, a left supporting plate sliding bulge and a right supporting plate sliding bulge which are arranged on the middle rear side of the middle of the firing rod backseat can slide in a firing rod backseat sliding groove of the left supporting plate and the right supporting plate, a left supporting plate and a right supporting plate push boss at the upper end of the movable handle can slide in a movable handle movable groove at the front end of a connecting rod sleeve, a connecting rod pushing boss on the right side of the movable handle pushes against the front end of the connecting rod during movement, the connecting rod and the connecting rod sleeve are installed in the middle of the left sliding block, a backseat button is installed in the middle of the left sliding block and the right sliding block, the connecting rod at the lower end of the closing movable handle is installed in the state of the closing the movable handle, grooves on the lower end of the connecting rod are installed on the two sides of the connecting rod, the square grooves on the side of the connecting rod, and the connecting rod is installed on the square boss, and the movable handle boss is installed on the movable handle boss.
4. The single use arcuate cutting stapler of claim 1, wherein three rows of staple forming slots are provided on the arcuate surface of the anvil of the replaceable anvil assembly.
5. The single use arc cutting stapler of claim 1 wherein the cartridge holder lower portion of the replaceable anvil assembly is a circular tube with two square bosses at the rear end thereof.
6. The single use arcuate cutting stapler of claim 1, wherein the arcuate outer sides of the staple cartridges of the replaceable cartridge assembly are provided with three rows of arcuate staple mounting slots.
7. The single use arcuate cutting stapler according to claim 1, wherein the upper portion of the pusher of the replaceable pusher cutter assembly is a three row pusher in an arcuate distribution.
8. The single use arcuate cutting stapler according to claim 1, wherein the cutting blade of the replaceable pusher cutting blade assembly is arcuate and is provided with a protrusion at the lower end.
9. The single use arc cutting stapler of claim 1 wherein the rotatable handle of the rotary connection means for the anvil is provided with anti-slip features on the surface thereof, the rotatable handle being comprised of a left rotatable handle and a right rotatable handle.
10. The single use arc cutting stapler of claim 1 wherein the safety front end of the reset mechanism is triangular, bosses are provided on both sides, and a reset button pin mounting hole is provided on the rear end.
CN201810977198.7A 2018-08-26 2018-08-26 Disposable arc-shaped cutting anastomat Active CN109009286B (en)

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CN105342658A (en) * 2015-11-17 2016-02-24 江苏孜航精密五金有限公司 Disposable anorectal cutting anastomat
CN205163150U (en) * 2015-11-17 2016-04-20 江苏孜航精密五金有限公司 Disposable anus intestines cutting anastomat
CN106963442A (en) * 2017-05-05 2017-07-21 江苏孜航精密五金有限公司 Disposable anorectal selects Endo-GIA
CN208973972U (en) * 2018-08-26 2019-06-14 江苏孜航精密五金有限公司 Disposable arc line shaped Endo-GIA

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