CN110115606B - Anorectal anastomat - Google Patents
Anorectal anastomat Download PDFInfo
- Publication number
- CN110115606B CN110115606B CN201910250996.4A CN201910250996A CN110115606B CN 110115606 B CN110115606 B CN 110115606B CN 201910250996 A CN201910250996 A CN 201910250996A CN 110115606 B CN110115606 B CN 110115606B
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- nail
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- connecting rod
- seat
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- 238000010304 firing Methods 0.000 claims abstract description 65
- 230000007246 mechanism Effects 0.000 claims abstract description 53
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- 230000003872 anastomosis Effects 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000005284 excitation Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 238000013459 approach Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/1114—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis of the digestive tract, e.g. bowels or oesophagus
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B17/115—Staplers for performing anastomosis in a single operation
- A61B17/1155—Circular staplers comprising a plurality of staples
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/32—Surgical cutting instruments
- A61B17/3209—Incision instruments
-
- 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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physiology (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
The invention discloses an anorectal anastomat which comprises a main handle, a functional seat and a transmission assembly, wherein the main handle is connected with the functional seat; the main handle is provided with a nail propping seat and a firing mechanism; the functional seat is arranged in front of the nail supporting seat and is connected with the main handle through a connecting rod; a cutting knife and a nail bin are arranged in the functional seat; the transmission assembly is driven by the firing mechanism to enable the cutting knife and the anastomotic nail in the nail bin to be matched with the nail propping seat so as to realize the cutting anastomosis function. According to the anorectal stapler, the nail bin and the cutting knife which achieve the cutting anastomosis function are integrated outside the main handle, and the nail abutting seat is integrated on the main handle, so that the defects of small space and blocked visual field caused by the fact that the nail bin and the cutting knife are integrated on the nail bin sleeve of the main handle of a conventional anorectal stapler are overcome, the capacity of the nail abutting seat for bearing tissues is improved, and the operation visibility is improved.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an anorectal anastomat.
Background
At present, in order to thoroughly cut tissues when the conventional anorectal anastomat is used, the tissues to be cut need to be pulled into the inner space of the annular knife as far as possible through the traction holes on the nail bin sleeve on the main handle, but due to the obstruction of the inner core of the nail bin sleeve and the requirement of installing the annular knife and the nail bin, the capacity of the internal loadable tissues is smaller, and meanwhile, the operator cannot accurately judge the conditions of the internal tissues due to the obstruction of the visual field.
Disclosure of Invention
The invention aims to provide an anorectal anastomat with large capacity, which can always bear tissues.
The technical scheme for realizing the aim of the invention is as follows:
an anorectal anastomat comprises a main handle, a nail supporting seat, a firing mechanism, a functional seat, a cutting knife, a nail bin, a transmission assembly, an adjusting mechanism and a connecting rod.
The nail propping seat and the firing mechanism are arranged on the main handle. The functional seat is arranged in front of the nail supporting seat and is connected with the main handle through the connecting rod. The cutting knife and the nail bin are arranged in the functional seat. The transmission component is driven by the firing mechanism to enable the cutting knife and the anastomotic nail in the nail bin to be matched with the nail propping seat so as to realize the cutting anastomosis function. The adjusting mechanism is arranged on the main handle. The adjusting mechanism adjusts the distance between the functional seat and the nail supporting seat by adjusting the position of the connecting rod in the axial direction of the main handle.
The main handle comprises a fixed handle and a bracket; the nail propping seat, the bracket and the fixed handle are sequentially and fixedly connected from front to back.
The device also comprises an adjusting mechanism arranged on the main handle; the adjusting mechanism adjusts the distance between the functional seat and the nail supporting seat by adjusting the position of the connecting rod in the axial direction of the main handle.
The adjusting mechanism comprises an adjusting nut; the adjusting nut is rotationally connected to the rear part of the main handle, and is in threaded connection with the rear end of the connecting rod; the connecting rod is in axial sliding connection with the main handle and is fixed relatively in the circumferential direction.
A sliding groove is formed in the inner wall of the main handle; and the side wall of the connecting rod is provided with a guide screw which is in sliding connection with the sliding groove.
The functional seat comprises a nail bin sleeve, a cap and an inner core; the cap is arranged at the top of the nail bin sleeve; the inner core is fixed in the nail bin sleeve and is fixed with the connecting rod; the nail bin is arranged on the bottom of the nail bin sleeve.
The transmission assembly comprises a nail pushing piece and a linkage loop bar; the nail pushing sheet is arranged in the nail bin sleeve and is matched with the cutting knife and the nail bin; the linkage sleeve rod is in sliding connection in the main handle, one end of the linkage sleeve rod penetrates through the nail propping seat and stretches into the nail bin sleeve to be matched with the nail pushing sheet, and the other end of the linkage sleeve rod is connected with the firing mechanism.
The front part of the nail pushing piece of the transmission assembly is matched with the linkage loop bar; the rear part of the nail pushing piece is coaxially provided with a small nail pushing ring and a large nail pushing ring which are matched with the nail bin; the cutting knife is fixed at the rear part of the nail pushing sheet and is positioned in the small nail pushing ring.
One end of the linkage loop bar of the transmission assembly is provided with a driving boss matched with the nail pushing sheet; the linkage sleeve rod moves axially to the rear of the main handle under the drive of the firing mechanism.
The linkage loop bar of the transmission component is hollow; the connecting rod is positioned in the linkage loop bar; gaps are symmetrically arranged on the side walls of the front part of the linkage loop bar; the rear part of the nail supporting seat is symmetrically provided with attaching pieces which extend into the notch and attach to the side wall of the connecting rod; the attaching piece is provided with a guide groove; and the front part of the connecting rod is provided with a guide rib matched with the guide groove.
The firing mechanism comprises a movable handle and a linkage assembly; one end of the movable handle is rotatably connected to the main handle; the linkage assembly is connected with the movable handle and the transmission assembly; when the other end of the movable handle approaches the main handle, the transmission assembly is pushed to move axially towards the rear of the main handle by the linkage assembly; and a reset spring for driving the linkage assembly and the transmission assembly to reset is arranged in the rear part of the main handle.
The linkage assembly of the firing mechanism comprises a handle connecting rod and a firing push plate; the two ends of the handle connecting rod are respectively connected with the movable handle and the firing push plate in a rotating way, and one end of the handle connecting rod connected with the movable handle is closer to the front part of the main handle than one end connected with the firing push plate.
The movable handle of the firing mechanism is provided with two movable handles along the mirror image of the axis of the main handle; the two handle connecting rods are arranged, one ends of the two handle connecting rods are respectively hinged with the two movable handles, and the other ends of the two handle connecting rods are respectively hinged with two sides of the firing push plate; the side wall of the main handle is provided with a strip-shaped groove for the displacement of the firing push plate of the linkage assembly.
A front limit boss and a rear limit boss are arranged on the inner wall of the fixed handle of the main handle; the front and rear positions of the firing push plate of the linkage assembly of the firing mechanism are limited through the front limiting boss and the rear limiting boss respectively.
The anorectal anastomat further comprises a safety device which is arranged on the main handle and used for limiting the action of the firing mechanism.
The end face of the nail supporting seat, which is opposite to the functional seat, is provided with a knife pad and a nail pit group; the cutter washer and the nail pit group correspond to the positions of the cutting knife and the anastomoses of the nail bin respectively; a plurality of traction holes penetrating through the inside and the outside are uniformly distributed on the side wall of the nail supporting seat along the axial direction.
A transparent indication window is arranged on the main handle; the indication window is marked with a safety excitation position mark; the connecting rod is provided with an indication mark matched with the indication window.
The protective cover is positioned between the nail propping seat and the functional seat; the protective cover comprises a left semicircular cover and a right semicircular cover; one side of the left semicircular cover is connected with one side of the right semicircular cover into a whole, a triangular positioning groove is formed in the other side of the left semicircular cover, and a triangular positioning block matched with the triangular positioning groove is arranged in the other side of the right semicircular cover; the left semicircular cover and the right semicircular cover are respectively provided with a semicircular groove, and the two semicircular grooves can be spliced into one circular groove.
By adopting the technical scheme, the invention has the following beneficial effects: (1) According to the anorectal stapler, the nail bin and the cutting knife for realizing the cutting anastomosis function are integrated outside the main handle, and the nail abutting seat is integrated on the main handle, so that the defects of small space and blocked visual field caused by the fact that the nail bin and the cutting knife are integrated on the nail bin sleeve of the main handle of the conventional anorectal stapler are overcome, the capacity of the nail abutting seat for bearing tissues is improved, the operation visibility is improved, and the anorectal stapler is revolutionarily improved.
(2) The invention also comprises an adjusting mechanism arranged on the main handle, and the adjusting mechanism adjusts the distance between the functional seat and the nail supporting seat by adjusting the position of the connecting rod in the axial direction of the main handle, so that the adjustment is stable.
(3) The adjusting mechanism comprises an adjusting nut, the adjusting nut is rotationally connected to the rear portion of the main handle, the adjusting nut stretches into the main handle to be in threaded connection with the rear end of the connecting rod, the connecting rod is in sliding connection with the main handle, the main handle limits the connecting rod to rotate circumferentially, and the adjusting nut is rotated to drive the connecting rod to axially displace so as to adjust the distance between the functional seat and the nail abutting seat, so that adjustment is stable and smooth.
(4) The front part of the nail pushing plate of the transmission assembly is matched with the linkage sleeve rod, the rear part of the nail pushing plate is coaxially provided with a small nail pushing ring and a large nail pushing ring which are matched with the nail bin, the cutting knife is fixed at the rear part of the nail pushing plate and positioned in the small nail pushing ring, when the linkage sleeve rod pulls the nail pushing plate to move, the anastomotic nail extends out of the nail bin, and the cutting knife extends out of the functional seat to be matched with the nail abutting seat to realize cutting anastomosis, and the structure is stable.
(5) The rear part of the nail propping seat is symmetrically provided with the attaching pieces which extend into the notch and attach to the side wall of the connecting rod, so that the accuracy of matching the relative positions of the functional seat and the nail propping seat is improved.
(6) The firing mechanism comprises a movable handle and a linkage assembly, wherein one end of the movable handle is rotatably connected to a main handle, the linkage assembly is connected with the movable handle and a transmission assembly, the transmission assembly is pushed to move axially towards the rear of the main handle by the linkage assembly when the other end of the movable handle is close to the main handle, a reset spring for driving the linkage assembly and the transmission assembly to reset is arranged in the rear of the main handle, and the movable handle is pressed to drive the transmission assembly to move by the linkage assembly so as to realize firing.
(7) The inner wall of the fixed handle of the main handle is provided with the sliding groove, the side wall of the connecting rod is provided with the guide screw which is in sliding connection with the sliding groove, the structure is simple and convenient, and the circumferential rotation of the connecting rod can be well limited.
(8) The front limiting boss and the rear limiting boss are arranged on the inner wall of the fixed handle of the main handle, and the front and rear positions of the firing push plate of the linkage assembly of the firing mechanism are limited through the front limiting boss and the rear limiting boss respectively, so that the moving position of the linkage sleeve rod can be well limited.
(9) The main handle is provided with the transparent indication window, the indication window is marked with the safety excitation position mark, and the connecting rod is provided with the indication mark matched with the indication window, so that the operation safety is improved.
(10) The safety device for limiting the action of the firing mechanism is arranged on the main handle, so that the advance firing can be prevented, and errors are avoided.
(11) The invention also comprises a protective cover positioned between the nail propping seat and the functional seat, which protects the nail bin and prevents the accidental falling-off of nails caused by collision and impact and the entry of particles such as dust and the like into the nail bin when not in use.
Drawings
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, in which
Fig. 1 is a schematic structural view of embodiment 1 of the present invention.
Fig. 2 is a schematic structural view of a connecting rod according to embodiment 1 of the present invention.
Fig. 3 is a schematic structural view of a linkage rod according to embodiment 1 of the present invention.
Fig. 4 is a schematic view showing the internal structure of the stationary handle of embodiment 1 of the present invention.
Fig. 5 is a schematic view showing the external structure of the fixed handle of embodiment 1 of the present invention.
Fig. 6 is a cross-sectional view of the adjustment nut cap of embodiment 1 of the present invention.
Fig. 7 is a schematic structural diagram of a nail holder according to embodiment 1 of the present invention.
Fig. 8 is a schematic structural view of a protective cover according to embodiment 2 of the present invention.
Fig. 9 is a schematic structural view of embodiment 3 of the present invention.
The reference numerals in the drawings are:
the device comprises a main handle 1, a fixed handle 1-1, a front limit boss 1-1-1, a rear limit boss 1-1-2, a bracket 1-2, a convex connecting part 1-2-1, a sliding groove 1-3, a return spring 1-4 and an indication window 1-5;
the nail pushing seat 2, the cutter backing ring 2-1, the nail pit group 2-2, the traction hole 2-3, the attaching piece 2-4 and the guide groove 2-4-1;
the firing mechanism 3, the movable handle 3-1, the handle connecting rod 3-2, the firing push plate 3-3;
the functional seat 4, the nail bin sleeve 4-1, the cap 4-2, the inner core 4-3;
a cutter 5;
a staple cartridge 6, staples 6-1;
the driving assembly 7, the nail pushing sheet 7-1, the small nail pushing ring 7-1-1, the large nail pushing ring 7-1-2, the linkage loop bar 7-2, the driving boss 7-2-1 and the notch 7-2-2;
the adjusting mechanism 8, the adjusting nut 8-1, the adjusting nut cover 8-2 and the limiting block 8-2-1;
the device comprises a connecting rod 9, a guide screw 9-1, a guide rib 9-2, an indication mark 9-3, a guide block 9-4, a long through hole 9-4-1, an indication drag hook 9-5 and a drag hook spring 9-6;
a safety block 10;
the protective cover 11, the left semicircular cover 11-1, the right semicircular cover 11-2, the triangular positioning groove 11-3, the triangular positioning block 11-4 and the semicircular groove 11-5;
a safety abutment 12.
Detailed Description
Example 1
Referring to fig. 1 to 6, the anorectal stapler of the present embodiment includes a main handle 1, a nail supporting seat 2, a firing mechanism 3, a functional seat 4, a cutter 5, a nail cartridge 6, a transmission assembly 7, an adjusting mechanism 8 and a connecting rod 9.
The nail propping seat 2 and the firing mechanism 3 are arranged on the main handle 1. The functional seat 4 is arranged in front of the nail supporting seat 2 and is connected with the main handle 1 through a connecting rod 9. The cutting knife 5 and the nail bin 6 are arranged in the functional seat 4. The transmission component 7 is driven by the firing mechanism 3 to enable the cutting knife 5 and the anastomotic nail 6-1 in the nail bin 6 to be matched with the nail abutting seat 2 to realize the cutting anastomosis function. The adjusting mechanism 8 is arranged on the main handle 1. The adjusting mechanism 8 adjusts the distance between the functional seat 4 and the nail abutting seat 2 by adjusting the position of the connecting rod 9 in the axial direction of the main handle 1.
The main handle 1 comprises a fixed handle 1-1 and a bracket 1-2; the nail propping seat 2, the bracket 1-2 and the fixed handle 1-1 are sequentially and fixedly connected from front to back.
The adjustment mechanism 8 includes an adjustment nut 8-1. The adjusting nut 8-1 is rotatably connected to the rear portion of the main handle 1, and the adjusting nut 8-1 is screw-connected to the rear end of the connecting rod 9. The connecting rod 9 is axially and slidably connected with the main handle 1 and is circumferentially and relatively fixed.
The inner wall of the fixed handle 1-1 of the main handle 1 is provided with a sliding groove 1-3. The side wall of the connecting rod 9 is provided with a guide screw 9-1 which is in sliding connection with the sliding groove 1-3.
The functional seat 4 comprises a nail bin sleeve 4-1, a cap 4-2 and an inner core 4-3. The cap 4-2 is arranged on the top of the nail bin sleeve 4-1. The inner core 4-3 is fixed in the nail bin sleeve 4-1 and is fixed with the connecting rod 9. The cartridge 6 is disposed on the bottom of the cartridge housing 4-1.
The transmission assembly 7 comprises a nail pushing sheet 7-1 and a linkage loop bar 7-2. The nail pushing sheet 7-1 is arranged in the nail bin sleeve 4-1 and is matched with the cutting knife 5 and the nail bin 6. The linkage sleeve rod 7-2 is connected in the main handle 1 in a sliding way, one end of the linkage sleeve rod penetrates through the nail propping seat 2 and stretches into the nail bin sleeve 4-1 to be matched with the nail pushing sheet 7-1, and the other end of the linkage sleeve rod is connected with the firing mechanism 3.
The front part of the nail pushing piece 7-1 of the transmission assembly 7 is matched with the linkage loop bar 7-2. The rear part of the nail pushing piece 7-1 is coaxially provided with a small nail pushing ring 7-1-1 and a large nail pushing ring 7-1-2 which are matched with the nail bin 6. The cutting blade 5 is fixed at the rear of the ejector blade 7-1 and is located in the small ejector ring 7-1-1.
One end of the linkage loop bar 7-2 of the transmission component 7 is provided with a driving boss 7-2-1 matched with the nail pushing sheet 7-1. The linkage sleeve rod 7-2 moves axially towards the rear of the main handle 1 under the drive of the firing mechanism 3.
The interior of the linkage rod 7-2 of the transmission assembly 7 is hollow. The connecting rod 9 is located in the linkage rod 7-2. The side wall of the front part of the linkage sleeve rod 7-2 is symmetrically provided with a notch 7-2-2. The rear part of the nail supporting seat 2 is symmetrically provided with a fitting piece 2-4 which extends into the notch 7-2-2 and is fitted with the side wall of the connecting rod 9. The bonding sheet 2-4 is provided with a guide groove 2-4-1. The front part of the connecting rod 9 is provided with a guide rib 9-2 matched with the guide groove 2-4-1.
The firing mechanism 3 includes a movable handle 3-1 and a linkage assembly. In this embodiment, the movable handle 3-1 is provided with two movable handles along the axis mirror image of the main handle 1. One end of the movable handle 3-1 is rotatably connected to the main handle 1. The linkage assembly of the firing mechanism 3 comprises a handle connecting rod 3-2 and a firing push plate 3-3. The two handle connecting rods 3-2 are arranged, one ends of the two handle connecting rods 3-2 are respectively hinged with the two movable handles 3-1, and the other ends of the two handle connecting rods 3-2 are respectively hinged with two sides of the firing push plate 3-3. The side wall of the main handle 1 is provided with a strip-shaped groove for the movement of the firing push plate 3-3 of the linkage assembly. The end of the handle connecting rod 3-2 connected with the movable handle 3-1 is closer to the front part of the main handle 1 than the end connected with the firing push plate 3-3. The firing push plate 3-3 is connected with the movable handle 3-1 and the transmission assembly 7. When the other ends of the two movable handles 3-1 are close to the main handle 1, the transmission assembly 7 is pushed by the linkage assembly to axially move towards the rear of the main handle 1. A reset spring 1-4 for driving the linkage assembly and the transmission assembly 7 to reset is arranged in the rear part of the main handle 1.
The inner wall of the fixed handle 1-1 of the main handle 1 is provided with a front limit boss 1-1-1 and a rear limit boss 1-1-2. The front and rear positions of the firing push plate 3-3 of the linkage assembly of the firing mechanism 3 are limited by the front limiting boss 1-1-1 and the rear limiting boss 1-1-2 respectively. The bracket 1-2 is provided with a convex connecting part 1-2-1 connected with a movable handle 3-1 of the firing mechanism 3.
The end surface of the nail propping seat 2 opposite to the functional seat 4 is provided with a knife washer 2-1 and a nail pit group 2-2. The knife pad ring 2-1 and the nail pit group 2-2 correspond to the positions of the cutting knife 5 and the anastomotic nail 6-1 of the nail bin 6 respectively. A plurality of traction holes 2-3 penetrating the inside and the outside are uniformly distributed on the side wall of the nail supporting seat 2 along the axial direction.
The anorectal stapler of the embodiment further comprises a safety device arranged on the main handle 1 and used for limiting the action of the firing mechanism 3. Specifically, the safety device in this embodiment is a safety block 10 that is sleeved on the main handle 1 to limit the displacement of the firing push plate 3-3 of the linkage assembly of the firing mechanism 3. The safety block 10 is arc-shaped. The safety block 10 is made of plastic material and is clamped on the main handle 1 through self elasticity.
The main handle 1 is provided with a transparent indication window 1-5. A security fire position marker is identified on the indication window 1-5. The connecting rod 9 is provided with indicating means which move with the connecting rod 9 and which are able to pass through the indicating windows 1-5. The indicating means in this embodiment is an indicating mark 9-3 provided on the connecting rod 9, the indicating mark 9-3 preferably being a rubber ring sleeved in an annular groove on the connecting rod 9.
When the nail pushing device is used, a tool is used for pulling tissues into the nail pushing seat 2 through the traction hole 2-3 from the outside of the nail pushing seat 2, the rotary adjusting nut 8-1 drives the connecting rod 9 to move away from the nail pushing seat 2, the functional seat 4 moves towards the nail pushing seat 2 to clamp the tissues, the movable handle 3-1 is pressed, the firing push plate 3-3 and the linkage sleeve rod 7-2 are pushed to move away from the nail pushing seat 2 through the handle connecting rod 3-2, the reset spring 1-4 is compressed, the linkage sleeve rod 7-2 pushes the nail pushing sheet 7-1 to move through the driving boss 7-2-1, the cutting knife 5 cuts the tissues, the small nail pushing ring 7-1 and the large nail pushing ring 7-1-2 push nails 6-1 penetrate the tissues and are formed on the nail pit group 2-2, the movable handle 3-1 is loosened, the firing push plate 3-3, the linkage sleeve rod 7-2 and the movable handle 3-1 are reset under the driving of the reset spring 1-4, and the rotary adjusting nut 8-1 drives the connecting rod 9 to move so that the functional seat 4 is reset.
Example 2
Referring to fig. 8, this embodiment is substantially the same as embodiment 1 except that: the present embodiment further comprises a protective cover 11 located between the abutment seat 2 and the functional seat 4. The protective cover 11 includes a left semicircular cover 11-1 and a right semicircular cover 11-2. One side of the left semicircular cover 11-1 is connected with one side of the right semicircular cover 11-2 into a whole, the other side of the left semicircular cover 11-1 is provided with a triangular positioning groove 11-3, and the other side of the right semicircular cover 11-2 is provided with a triangular positioning block 11-4 matched with the triangular positioning groove 11-3. The left semicircular cover 11-1 and the right semicircular cover 11-2 are respectively provided with a semicircular groove 11-5, and the two semicircular grooves 11-5 can be spliced into a circular groove. The protective cover 11 is made of plastic.
Example 3
Referring to fig. 9, this embodiment is substantially the same as embodiment 1 except that: in this embodiment, only one movable handle 3-1 of the firing mechanism 3 is provided. One end of the movable handle 3-1 is rotatably connected to the main handle 1. The two ends of the handle connecting rod 3-2 are respectively connected with the movable handle 3-1 and the firing push plate 3-3 in a rotating way, and one end of the handle connecting rod 3-2 connected with the movable handle 3-1 is closer to the front part of the main handle 1 than the end connected with the firing push plate 3-3. The firing push plate 3-3 is connected with the movable handle 3-1 and the transmission assembly 7. When the other end of the movable handle 3-1 approaches the main handle 1, the transmission assembly 7 is pushed by the linkage assembly to axially move towards the rear of the main handle 1. A reset spring 1-4 for driving the linkage assembly and the transmission assembly 7 to reset is arranged in the rear part of the main handle 1.
In this embodiment, only the rear limit boss 1-1-2 is required to be disposed on the inner wall of the fixed handle 1-1 of the main handle 1, and the front limit boss 1-1-1 is not required to be disposed.
The safety device in this embodiment is a safety abutment 12 with one end hinged to the main handle 1. The inner side of the movable handle 3-1 is provided with a supporting groove. When not triggered, the other end of the safety abutting block 12 abuts against the abutting groove of the movable handle 3-1; before firing, the safety abutting block 12 is rotated, so that the other end of the safety abutting block 12 is removed from the abutting groove of the movable handle 3-1, the safety is relieved, and then the movable handle 3-1 is pressed to perform firing operation.
The indicating device in the embodiment comprises a guide block 9-4, an indicating drag hook 9-5 and a drag hook spring 9-6 which are sequentially arranged from front to back. The guide block 9-4 is sleeved on the connecting rod 9, and the guide block 9-4 is provided with a long through hole 9-4-1. The guide screw 9-1 is disposed in the long through hole 9-4-1, and the position of the guide block 9-4 on the connecting rod 9 can be fixed by tightening the guide screw 9-1. One end of the indicating drag hook 9-5 is sleeved on the connecting rod 9, the other end of the indicating drag hook 9-5 extends along the axial direction of the connecting rod 9 and is provided with a turned edge, and the circumferential position of the turned edge at the other end of the indicating drag hook 9-5 is consistent with the circumferential position of the indicating window 1-5. The drag hook spring 9-6 is sleeved on the connecting rod 9, one end of the drag hook spring 9-6 is propped against the indicating drag hook 9-5, and the other end is propped against the adjusting nut 8-1. By adjusting the position of the guide block 9-4 on the connecting rod 9, the position of the indication drag hook 9-5 can be finely adjusted.
While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be had by the present invention, it should be understood that the foregoing description is merely illustrative of the present invention and that no limitations are intended to the scope of the invention, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the invention.
Claims (14)
1. An anorectal anastomat is characterized in that: comprising the following steps:
a main handle (1) on which a nail supporting seat (2) and a firing mechanism (3) are arranged;
the functional seat (4) is arranged in front of the nail propping seat (2) and is connected with the main handle (1) through the connecting rod (9), and a cutting knife (5) and a nail bin (6) are arranged in the functional seat (4);
the transmission assembly (7) is driven by the firing mechanism (3) to enable the cutting knife (5) and the anastomotic nail (6-1) in the nail bin (6) to be matched with the nail supporting seat (2) so as to realize the cutting anastomosis function;
the adjusting mechanism (8) is arranged on the main handle (1); the adjusting mechanism (8) adjusts the distance between the functional seat (4) and the nail supporting seat (2) by adjusting the position of the connecting rod (9) in the axial direction of the main handle (1);
the end face of the nail propping seat (2) opposite to the functional seat (4) is provided with a cutter washer (2-1) and a nail pit group (2-2); the knife-washer ring (2-1) and the nail pit group (2-2) correspond to the positions of the cutting knife (5) and the anastomotic nail (6-1) of the nail bin (6) respectively; a plurality of traction holes (2-3) penetrating through the inside and the outside are uniformly distributed on the side wall of the nail supporting seat (2) along the axial direction.
2. An anorectal stapler according to claim 1, wherein: the adjusting mechanism (8) comprises an adjusting nut (8-1); the adjusting nut (8-1) is rotatably connected to the rear part of the main handle (1), and the adjusting nut (8-1) is in threaded connection with the rear end of the connecting rod (9); the connecting rod (9) is axially and slidably connected with the main handle (1) and is circumferentially and relatively fixed.
3. An anorectal stapler according to claim 2, wherein: the inner wall of the main handle (1) is provided with a sliding groove (1-3); the side wall of the connecting rod (9) is provided with a guide screw (9-1) which is in sliding connection with the sliding groove (1-3).
4. An anorectal stapler according to claim 1, wherein: the functional seat (4) comprises a nail bin sleeve (4-1), a cap (4-2) and an inner core (4-3); the cap (4-2) is arranged at the top of the nail bin sleeve (4-1); the inner core (4-3) is fixed in the nail bin sleeve (4-1) and is fixed with the connecting rod (9); the nail bin (6) is arranged on the bottom of the nail bin sleeve (4-1).
5. An anorectal stapler according to claim 1, wherein: the transmission assembly (7) comprises a nail pushing sheet (7-1) and a linkage loop bar (7-2); the nail pushing sheet (7-1) is arranged in the nail bin sleeve (4-1) and is matched with the cutting knife (5) and the nail bin (6); the linkage sleeve rod (7-2) is slidably connected in the main handle (1), one end of the linkage sleeve rod penetrates through the nail supporting seat (2) and stretches into the nail bin sleeve (4-1) to be matched with the nail pushing piece (7-1), and the other end of the linkage sleeve rod is connected with the firing mechanism (3).
6. An anorectal stapler according to claim 5, wherein: the front part of the nail pushing sheet (7-1) of the transmission assembly (7) is matched with the linkage loop bar (7-2); the rear part of the nail pushing piece (7-1) is coaxially provided with a small nail pushing ring (7-1-1) and a large nail pushing ring (7-1-2) which are matched with the nail bin (6); the cutting knife (5) is fixed at the rear part of the nail pushing sheet (7-1) and is positioned in the small nail pushing ring (7-1-1).
7. The anorectal stapler of claim 6, wherein: one end of a linkage loop bar (7-2) of the transmission assembly (7) is provided with a driving boss (7-2-1) matched with the nail pushing sheet (7-1); the linkage sleeve rod (7-2) moves axially towards the rear of the main handle (1) under the drive of the firing mechanism (3).
8. An anorectal stapler according to claim 5, wherein: the linkage loop bar (7-2) of the transmission assembly (7) is hollow; the connecting rod (9) is positioned in the linkage loop bar (7-2); gaps (7-2-2) are symmetrically arranged on the side wall of the front part of the linkage sleeve rod (7-2); the rear part of the nail propping seat (2) is symmetrically provided with a binding sheet (2-4) which extends into the notch (7-2-2) and is bound with the side wall of the connecting rod (9); the bonding sheet (2-4) is provided with a guide groove (2-4-1); the front part of the connecting rod (9) is provided with a guide rib (9-2) matched with the guide groove (2-4-1).
9. An anorectal stapler according to claim 1, wherein: the firing mechanism (3) comprises a movable handle (3-1) and a linkage assembly; one end of the movable handle (3-1) is rotatably connected to the main handle (1); the linkage component is connected with the movable handle (3-1) and the transmission component (7); when the other end of the movable handle (3-1) is close to the main handle (1), the transmission assembly (7) is pushed to move axially towards the rear of the main handle (1) through the linkage assembly; and a reset spring (1-4) for driving the linkage assembly and the transmission assembly (7) to reset is arranged in the rear part of the main handle (1).
10. An anorectal stapler according to claim 9, wherein: the linkage assembly of the firing mechanism (3) comprises a handle connecting rod (3-2) and a firing push plate (3-3); the two ends of the handle connecting rod (3-2) are respectively connected with the movable handle (3-1) and the firing push plate (3-3) in a rotating way, and one end of the handle connecting rod (3-2) connected with the movable handle (3-1) is closer to the front part of the main handle (1) than one end connected with the firing push plate (3-3).
11. An anorectal stapler according to claim 10, wherein: the movable handle (3-1) of the firing mechanism (3) is provided with two movable handles along the axis mirror image of the main handle (1); the two handle connecting rods (3-2) are arranged, one ends of the two handle connecting rods (3-2) are respectively hinged with the two movable handles (3-1), and the other ends of the two handle connecting rods (3-2) are respectively hinged with two sides of the firing push plate (3-3); the side wall of the main handle (1) is provided with a strip-shaped groove for the displacement of a firing push plate (3-3) of the linkage assembly.
12. An anorectal stapler according to claim 1, wherein: the device also comprises a safety device which is arranged on the main handle (1) and used for limiting the action of the firing mechanism (3).
13. An anorectal stapler according to claim 1, wherein: a transparent indication window (1-5) is arranged on the main handle (1); a safety excitation position mark is marked on the indication window (1-5); the connecting rod (9) is provided with an indicating device which moves along with the connecting rod (9) and can pass through the indicating window (1-5).
14. An anorectal stapler according to claim 1, wherein: the protective cover (11) is positioned between the nail propping seat (2) and the functional seat (4); the protective cover (11) comprises a left semicircular cover (11-1) and a right semicircular cover (11-2); one side of the left semicircular cover (11-1) is connected with one side of the right semicircular cover (11-2) into a whole, a triangular positioning groove (11-3) is formed in the other side of the left semicircular cover (11-1), and a triangular positioning block (11-4) matched with the triangular positioning groove (11-3) is arranged in the other side of the right semicircular cover (11-2); the left semicircular cover (11-1) and the right semicircular cover (11-2) are respectively provided with a semicircular groove (11-5), and the two semicircular grooves (11-5) can be spliced into a circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910250996.4A CN110115606B (en) | 2019-03-29 | 2019-03-29 | Anorectal anastomat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910250996.4A CN110115606B (en) | 2019-03-29 | 2019-03-29 | Anorectal anastomat |
Publications (2)
| Publication Number | Publication Date |
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| CN110115606A CN110115606A (en) | 2019-08-13 |
| CN110115606B true CN110115606B (en) | 2024-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910250996.4A Active CN110115606B (en) | 2019-03-29 | 2019-03-29 | Anorectal anastomat |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113456153B (en) * | 2021-07-11 | 2024-01-16 | 江苏康赛医疗器械科技有限公司 | Anorectal ligation anastomat with accurately controllable stroke |
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