CN108210004B - Vascular anastomat - Google Patents
Vascular anastomat Download PDFInfo
- Publication number
- CN108210004B CN108210004B CN201810215270.2A CN201810215270A CN108210004B CN 108210004 B CN108210004 B CN 108210004B CN 201810215270 A CN201810215270 A CN 201810215270A CN 108210004 B CN108210004 B CN 108210004B
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- handle
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- piece
- pushing
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- 230000002792 vascular Effects 0.000 title claims abstract description 71
- 238000010304 firing Methods 0.000 claims abstract description 12
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000010936 titanium Substances 0.000 claims abstract description 4
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 29
- 238000005096 rolling process Methods 0.000 claims description 2
- 230000003872 anastomosis Effects 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 6
- 210000004204 blood vessel Anatomy 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 238000001356 surgical procedure Methods 0.000 abstract description 3
- 210000001519 tissue Anatomy 0.000 description 8
- 208000007536 Thrombosis Diseases 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000012953 feeding on blood of other organism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 210000004026 tunica intima Anatomy 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
- A61B17/115—Staplers for performing anastomosis in a single operation
-
- 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
- A61B17/11—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis
- A61B2017/1107—Surgical instruments, devices or methods, e.g. tourniquets for performing anastomosis; Buttons for anastomosis for blood vessels
-
- 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
- A61B2017/1132—End-to-end connections
-
- 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
- A61B2017/1135—End-to-side connections, e.g. T- or Y-connections
-
- 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
- A61B2017/1139—Side-to-side connections, e.g. shunt or X-connections
Landscapes
- 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)
- Surgical Instruments (AREA)
Abstract
The invention belongs to the technical field of medical appliances, and particularly relates to a vascular anastomat which is used for placing vascular anastomosis titanium nails in a blocking manner to conform to vascular anastomosis without penetrating a vascular cavity. Comprises an anastomotic nail forming assembly, a rotating device, an anastomotic nail pushing device, a firing device, a reset spring and a fixed handle; the anastomotic nail forming assembly comprises an anastomotic nail, a nail pushing sheet, a guiding closing sheet, a guiding fixing sheet, a guide rail and a connecting sheet; the rotating device comprises a universal wheel and a fixed card; the anastomotic nail pushing device comprises a nail pushing sheet, a push rod, a pushing block, a jacking block, a return spring piece and a fixed handle; the firing device comprises a guide rail, a reset spring, a pushing block and a closing handle. The invention provides an ideal vascular anastomat and a vascular anastomosis method for surgery, and the vascular anastomat is used for anastomosing blood vessels, has simple, convenient and quick operation, and reliable anastomosis effect, and is a feasible vascular anastomosis instrument.
Description
Technical Field
The invention belongs to the technical field of medical appliances, and particularly relates to a vascular anastomat which is used for placing vascular anastomosis titanium nails in a blocking manner to conform to vascular anastomosis without penetrating a vascular cavity.
Background
Vascular operations such as arteriotomy, phlebotomy, end-to-end suture, end-to-side suture, and side-to-side suture are performed, and the traditional method is a needle-line suture anastomosis method, but the operation is tedious and time-consuming, and the vascular intima is damaged greatly; sutures often cause platelet deposition, leading to thrombosis, etc.
Disclosure of Invention
The invention aims to provide a vascular anastomat aiming at the defects, which is provided with an anastomat forming assembly, a rotating device, an anastomat pushing device, a firing device, a reset spring and a fixed handle. When the closing handle of the stapler is simultaneously gripped, the staples at the tissue edges are closed. When the closing handle of the stapler is released, a new nail will automatically enter the mouth end of the stapler. The invention provides an ideal vascular anastomat and a vascular anastomosis method for surgery, and the vascular anastomat is used for anastomosing blood vessels, has simple, convenient and quick operation, and reliable anastomosis effect, and is a feasible vascular anastomosis instrument.
The vascular anastomat is realized by adopting the following technical scheme:
a vascular anastomat comprises an anastomotic nail forming assembly, a rotating device, an anastomotic nail pushing device, a firing device, a reset spring and a fixed handle.
The anastomotic nail forming assembly comprises an anastomotic nail, a nail pushing sheet, a guiding closing sheet, a guiding fixing sheet, a guide rail and a connecting sheet.
The guide rail is in a strip shape, and the middle part of the guide rail is provided with a sliding mounting groove for guiding the closing piece and the guiding fixing piece. The rear end of the guide rail is provided with a pushing block mounting groove and a universal wheel connecting groove.
The front end of the guiding closing piece is provided with an anastomotic nail forming groove and an elastic clamp, the rear end of the guiding closing piece is provided with a universal wheel mounting groove, and the front and rear parts of the guiding closing piece are respectively provided with a guiding fixing piece positioning groove.
The bottom of the guide fixing piece is provided with a sliding groove for installing the anastomat and the nail pushing piece, the bottom of the guide fixing piece is also provided with a push rod guide sliding groove, and the front end and the rear end of the two sides of the bottom of the guide fixing piece are respectively provided with a positioning bulge for being matched with the positioning groove of the guide fixing piece to be installed and fixed.
When the anastomotic nail forming assembly is assembled, the anastomotic nail and the nail pushing sheet are arranged in the sliding groove of the guide fixing sheet, the push rod is arranged in the guide sliding groove of the push rod, and the guide fixing sheet is matched with the guide fixing sheet positioning groove on the guide closing sheet through the positioning bulge and is fixedly arranged together through the connecting sheet. The assembled guide closing piece and guide fixing piece are installed in the sliding installation groove of the guide rail.
The rotating device comprises a universal wheel and a fixed card. The universal wheel is provided with the universal wheel axle, and the universal wheel axle middle part is provided with the rectangular hole, and the inside one side of rectangular hole is provided with guide rail installation step and direction closure piece installation step, and guide rail installation step and direction closure piece installation step stack are in the same place integrative, and the inside opposite side of rectangular hole is provided with the fixed card mounting groove, and the outer circumferencial direction of universal wheel axle is provided with the hand wheel.
One side of the fixed card is provided with a positioning bulge which is used for being matched with a fixed card mounting groove of the universal wheel, the other side of the fixed card is provided with a guide fixing piece assembly groove, one end of the fixed card is provided with an assembling and disassembling handle, and the bottom of the assembling and disassembling handle is provided with a push rod sliding groove.
When the rotary device is assembled, the rear end of the anastomotic nail forming assembly is inserted into a rectangular hole of the universal wheel shaft, and a guide rail installation step and a guide closing piece installation step in the rectangular hole are respectively matched and installed with a universal wheel installation groove on the guide closing piece and a universal wheel connection groove on the guide rail. The fixed card is installed in the fixed card mounting groove of universal wheel. The universal wheel is installed in the universal wheel mounting groove of the fixed handle.
The anastomotic nail pushing device comprises a nail pushing sheet, a push rod, a pushing block, a jacking block, a return spring piece and a fixed handle.
The fixed handle consists of an upper handle and a lower handle. The front end, the middle part and the rear end of the lower handle are respectively provided with an upper handle positioning column mounting hole, the front part of the lower handle is provided with a universal wheel mounting groove, the middle part of the lower handle is provided with a pushing block sliding groove, a reset spring limiting boss and a closing handle limiting sliding groove, the middle rear part of the lower handle is provided with a jacking block sliding groove, the front end of the jacking block sliding groove is provided with a reset spring piece mounting buckle, the rear end of the lower handle is provided with a closing handle hinge column, and two sides of the lower handle are provided with closing handle mounting grooves.
The front end, the middle part and the rear end of the upper handle are respectively provided with an upper handle positioning column, the front part of the upper handle is provided with a universal wheel mounting groove, the middle part of the upper handle is provided with a pushing block sliding groove, a reset spring limiting boss and a closing handle limiting sliding groove, the middle rear part of the upper handle is provided with a jacking block sliding groove, the front end of the jacking block sliding groove is provided with a reset spring piece mounting buckle, and two sides of the upper handle are provided with closing handle mounting grooves.
The front end of the nail pushing piece is arc-shaped and is matched with the arc of the bottom of the anastomat, and the rear end of the nail pushing piece is provided with a nail pushing piece sliding boss which is matched with the push rod guiding sliding groove.
The front part of the pushing block is provided with a reset spring mounting column, the front end of the spring mounting column is provided with a boss which is connected with a pushing block mounting groove at the rear end of the guide rail, two sides of the rear part of the pushing block are provided with triangular pushing wings, and the center of the pushing block is provided with a push rod sliding hole.
The front end of the top block is provided with a push rod mounting hole, and the rear end of the top block is provided with a return spring piece positioning groove.
The return spring piece is formed by rolling a strip spring piece.
When the anastomotic nail pushing device is assembled, the return spring piece is installed in the ejector block sliding groove on the lower handle through the return spring piece installation buckle on the lower handle. The ejector block is arranged in an ejector block sliding groove on the lower handle, the rear end of the ejector block is propped against the return spring piece through a return spring piece positioning groove, and the front end of the ejector block is propped against the rear end of the pushing block. The rear end of the push rod is arranged in the push rod installation hole at the front end of the jacking block through the push rod sliding hole on the pushing block. The front end of the push rod sequentially passes through the push rod sliding groove on the fixed card and then passes through the push rod guide sliding groove on the guide fixing sheet to prop against the rear end of the nail pushing sheet.
The firing device comprises a guide rail, a reset spring, a pushing block and a closing handle.
The guide rail is in a strip shape, and the middle part of the guide rail is provided with a sliding mounting groove for guiding the closing piece and the guiding fixing piece. The rear end of the guide rail is provided with a pushing block mounting groove and a universal wheel connecting groove.
The front part of the pushing block is provided with a reset spring mounting column, the front end of the spring mounting column is provided with a boss which is connected with a pushing block mounting groove at the rear end of the guide rail, two sides of the rear part of the pushing block are provided with triangular pushing wings, and the center of the pushing block is provided with a push rod sliding hole.
The closing handle consists of a left closing handle and a right closing handle. The inner sides of the front ends of the left closing handle and the right closing handle are provided with pushing block sliding grooves, the rear parts of the pushing block sliding grooves of the front ends of the left closing handle and the right closing handle are provided with sliding blocks, and the sliding blocks are respectively matched with the closing handle limiting sliding grooves of the upper fixed handle and the closing handle limiting sliding grooves of the lower fixed handle. The rear ends of the left closing handle and the right closing handle are respectively provided with a hinge hole, and the hinge holes are matched with a closing handle hinge post at the rear end of the lower handle and are arranged on the lower fixed handle.
When the firing device is assembled, the reset spring is sleeved on the reset spring mounting column at the front part of the pushing block, the pushing block is installed in the pushing block sliding groove, the front end of the reset spring is propped against the reset spring limiting boss, and the triangular pushing wings at the two sides of the rear part of the pushing block are installed in the pushing block sliding grooves at the inner sides of the left and right closing handles. The upper handle is fixedly arranged in upper handle positioning column mounting holes respectively arranged at the front end, the middle part and the rear end of the lower handle through lower handle positioning columns respectively arranged at the front end, the middle part and the rear end of the lower handle, and the upper handle and the lower handle are closed.
Principle of operation
When the vascular anastomat is used in operation, the front end of the guiding and closing sheet of the vascular anastomat is placed at the edge of the vascular wall overturning tissue so as to enable the guiding and closing sheet to be anastomosed, the vascular wall overturning tissue is ensured to be just anastomosed with the opening end of the guiding and closing sheet, the two side closing handles are tightly pinched as much as possible, when the closing handles are pinched, the anastomotic nail is firmly fixed at the opening end of the guiding and closing sheet, the edge of the vascular wall tissue is closed, and then the two side closing handles are loosened. The staples may be disengaged from the guide anchor blade ports and the vessel stapler removed. The nail pushing sheet in the anastomotic nail pushing device automatically pushes the next anastomotic nail to the forefront end through the pushing block, the pushing rod and the nail pushing sheet under the pushing of the return spring piece. If the suturing position of the blood vessel needs to be adjusted, the universal wheel can be rotated through the rotating device to find the optimal suturing angle. If additional stitching points are needed according to the vascular stitching length, the sequence of the staples should be as compact as possible, and the distance between the staples should not exceed 0.5mm.
The vascular anastomat has reasonable design, compact structure and convenient use, provides rapid and accurate vascular anastomosis, can replace the traditional suturing method, places anastomat in a blocking way to conform to vascular anastomosis without penetrating a vascular cavity, allows the vascular anastomosis to shrink and expand to accommodate pulse blood flow, and is suitable for different types of vascular operations, and most commonly used at vascular inlets. The invention provides an ideal vascular anastomat and a vascular anastomosis method for surgery, and the vascular anastomat is used for anastomosing blood vessels, has simple, convenient and quick operation, and reliable anastomosis effect, and is a feasible vascular anastomosis instrument. The vascular anastomat is suitable for vascular anastomosis operations such as arterial or venous incision, end-to-end suture, end-to-side suture, side-to-side suture and the like.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic view of a vascular stapler;
FIG. 2 is a schematic view of the staple forming assembly of the vessel stapler;
FIG. 3 is a schematic view of the track structure of the vascular stapler;
FIG. 4 is a schematic view of a guiding closure tab of a vascular stapler;
FIG. 5 is a schematic view of a guide and anchor plate structure of the vessel anastomat;
FIG. 6 is a schematic view of a rotary device of the vascular anastomat;
FIG. 7 is a schematic view of the universal wheel structure of the vascular anastomat;
FIG. 8 is a schematic view of a securing card configuration of a vascular stapler;
FIG. 9 is a schematic view of a staple pusher mechanism of a vascular stapler;
FIG. 10 is a schematic view of the staple pusher of the vascular stapler;
FIG. 11 is a schematic diagram of a pushing block structure of a vascular anastomat;
FIG. 12 is a schematic illustration of the top block structure of the vascular anastomat;
FIG. 13 is a schematic view of the fixed handle structure of the vascular stapler;
FIG. 14 is a schematic view of the firing mechanism of the vascular stapler;
FIG. 15 is a schematic view of the closure handle of the vascular stapler in a configuration of FIG. 1;
fig. 16 is a schematic view of the closure handle structure of the vessel anastomat 2.
In the figure: 1. the anastomat, 2, the nail pushing sheet, 3, the push rod, 4, the guiding closing sheet, 5, the guiding fixing sheet, 6, the guide rail, 7, the universal wheel, 8 and the fixing card, 9, a return spring, 10, a pushing block, 11, a top block, 12, a return spring piece, 13, a closing handle, 14, a fixed handle, 15 and a connecting sheet;
2-1, a nail pushing piece sliding boss;
4-1 parts of anastomotic nail forming grooves, 4-2 parts of elastic clamps, 4-3 parts of universal wheel mounting grooves, 4-4 parts of guiding fixing piece positioning grooves;
5-1, a sliding groove, 5-2, a push rod guiding sliding groove, 5-3 and a positioning protrusion 5-3;
6-1, a sliding mounting groove, 6-2, a pushing block mounting groove, 6-3 and a universal wheel connecting groove;
7-1, a wheel shaft, 7-2, a rectangular hole, 7-3, a guide rail installation step, 7-4, a guide closing piece installation step, 7-5 and a fixed card installation groove;
8-1, positioning bulges, 8-2, a guide fixing piece assembly groove, 8-3, a mounting and dismounting handle, 8-4 and a push rod sliding groove;
10-1, a reset spring mounting column, 10-2, a boss, 10-3, a triangular push wing, 10-4 and a push rod sliding hole;
11-1, a push rod mounting hole, 11-2 and a return spring piece positioning groove;
13-1, a left closing handle, 13-2, a right closing handle, 13-3, a pushing block sliding groove, 13-4 and a sliding block;
14-1, an upper fixed handle, 14-2 and a lower fixed handle;
14-1-1, an upper handle positioning column, 14-1-2, a universal wheel mounting groove, 14-1-3, a pushing block sliding groove, 14-1-4, a return spring limiting boss, 14-1-5, a closing handle limiting sliding groove, 14-1-6, a top block sliding groove, 14-1-7, a return spring piece mounting buckle, 14-1-8, a closing handle hinging column, 14-1-9 and a closing handle mounting groove;
14-2-1, an upper handle positioning column mounting hole, 14-2-2, a universal wheel mounting groove, 14-2-3 pushing block sliding grooves, 14-2-4, a return spring limiting boss, 14-2-5, a closing handle limiting sliding groove, 14-2-6, a top block sliding groove, 14-2-7, a return spring piece mounting buckle, 14-2-8 and a closing handle mounting groove.
Detailed Description
Referring to fig. 1-16, a vascular stapler includes a staple forming assembly, a rotary device, a staple pusher, a firing device, a return spring 9, and a fixed handle 14.
The anastomotic nail forming assembly comprises an anastomotic nail 1, a nail pushing sheet 2, a guiding closing sheet 4, a guiding fixing sheet 5, a guide rail 6 and a connecting sheet 15.
The guide rail 6 is in a strip shape, and the middle part of the guide rail 6 is provided with a sliding mounting groove 6-1 for guiding the closing piece 4 and the guiding fixing piece 5. The rear end of the guide rail 6 is provided with a pushing block mounting groove 6-2 and a universal wheel connecting groove 6-3.
The front end of the guiding closing sheet 4 is provided with an anastomotic nail forming groove 4-1 and an elastic clamp 4-2, the rear end is provided with a universal wheel mounting groove 4-3, and the front and rear parts of the guiding closing sheet 4 are respectively provided with a guiding fixing sheet positioning groove 4-4.
The bottom of the guide fixing piece 5 is provided with a sliding groove 5-1 for installing the anastomat 1 and the nail pushing piece 2, the bottom of the guide fixing piece 5 is also provided with a push rod guide sliding groove 5-2, and the front end and the rear end of the two sides of the bottom of the guide fixing piece 5 are respectively provided with a positioning bulge 5-3 for being matched and installed and fixed with the guide fixing piece positioning groove 4-4.
When the anastomotic nail forming assembly is assembled, the anastomotic nail 1 and the ejector pin sheet 2 are arranged in the sliding groove 5-1 of the guide fixing sheet 5, the push rod 3 is arranged in the push rod guide sliding groove 5-2, and the guide fixing sheet 5 is matched with the guide fixing sheet positioning groove 4-4 on the guide closing sheet 4 through the positioning bulge 5-3 and is fixedly arranged together through the connecting sheet 15. The assembled guide closing piece 4 and guide fixing piece 5 are mounted in the sliding mounting groove 6-1 of the guide rail 6.
The anastomosis nail 1 adopts titanium nails.
The rotating means comprise a universal wheel 7 and a fixed card 8. The universal wheel 7 is provided with a universal wheel shaft 7-1, a rectangular hole 7-2 is formed in the middle of the universal wheel shaft 7-1, one side in the rectangular hole 7-2 is provided with a guide rail installation step 7-3 and a guide closing piece installation step 7-4, the other side in the rectangular hole 7-2 is provided with a fixed card installation groove 7-5, and the outer circumferential direction of the universal wheel shaft 7-1 is provided with a hand wheel 7-6.
The guide rail installation step 7-3 and the guide closing piece installation step 7-4 which are arranged on one side in the rectangular hole 7-2 of the universal wheel shaft 7-1 are overlapped together to form a whole.
One side of the fixed card 8 is provided with a positioning bulge 8-1 which is used for being matched with a fixed card mounting groove 7-5 of the universal wheel 7, the other side of the fixed card 8 is provided with a guiding fixing piece assembling groove 8-2, one end of the fixed card 8 is provided with a mounting and dismounting handle 8-3, and the bottom of the mounting and dismounting handle 8-3 is provided with a push rod sliding groove 8-4.
When the rotary device is assembled, the rear end of the anastomotic nail forming assembly is inserted into the rectangular hole 7-2 of the universal wheel shaft 7-1, and the guide rail mounting step 7-3 and the guide closing piece mounting step 7-4 in the rectangular hole 7-2 are respectively matched and mounted with the universal wheel mounting groove 4-3 on the guide closing piece 4 and the universal wheel connecting groove 6-3 on the guide rail 6. The fixing card 8 is mounted in the fixing card mounting groove 7-5 of the universal wheel 7. The universal wheel 7 is installed in a universal wheel installation groove of the fixed handle 14.
The anastomotic nail pushing device comprises a nail pushing sheet 2, a push rod 3, a pushing block 10, a jacking block 11, a return spring piece 12 and a fixed handle 14.
The fixed handle 14 is composed of an upper handle 14-1 and a lower handle 14-2. The front end, the middle part and the rear end of the lower handle 14-2 are respectively provided with an upper handle positioning column mounting hole 14-2-1, the front part of the lower handle is provided with a universal wheel mounting groove 14-2-2, the middle part of the lower handle is provided with a pushing block sliding groove 14-2-3, a return spring limiting boss 14-2-4 and a closing handle limiting sliding groove 14-2-5, the middle rear part of the lower handle is provided with a top block sliding groove 14-2-6, the front end of the top block sliding groove 14-2-6 is provided with a return spring piece mounting buckle 14-2-7, the rear end of the lower handle is provided with a closing handle hinge column 14-2-8, and two sides of the lower handle are provided with closing handle mounting grooves 14-2-9.
The front end, the middle part and the rear end of the upper handle 14-1 are respectively provided with an upper handle positioning column 14-1, the front part of the upper handle is provided with a universal wheel mounting groove 14-1-2, the middle part of the upper handle is provided with a pushing block sliding groove 14-1-3, a return spring limiting boss 14-1-4 and a closing handle limiting sliding groove 14-1-5, the middle rear part of the upper handle is provided with a top block sliding groove 14-1-6, the front end of the top block sliding groove 14-1-6 is provided with a return spring piece mounting buckle 14-1-7, and two sides of the upper handle are provided with closing handle mounting grooves 14-1-8.
The front end of the nail pushing sheet 2 is arc-shaped and is matched with the arc of the bottom of the anastomat, and the rear end of the nail pushing sheet 1 is provided with a nail pushing sheet sliding boss 2-1 which is matched with the push rod guiding sliding groove 5-2.
The front part of the pushing block 10 is provided with a reset spring mounting column 10-1, the front end of the spring mounting column 10-1 is provided with a boss 10-2 which is connected with a pushing block mounting groove 6-2 at the rear end of the guide rail 6, two sides of the rear part of the pushing block 10 are provided with triangular pushing wings 10-3, and the center of the pushing block 10 is provided with a push rod sliding hole 10-4.
The front end of the top block 11 is provided with a push rod mounting hole 11-1, and the rear end of the top block is provided with a return spring piece positioning groove 11-2.
The return spring piece 12 is rolled up from an elongated spring piece.
The push rod 3 is a metal push rod or a plastic push rod.
When the anastomotic nail pushing device is assembled, the return spring piece 12 is arranged in the top block sliding groove 14-2-6 on the lower handle 14-2 through the return spring piece installation buckle 14-2-7 on the lower handle 14-2. The top block 11 is installed in the top block sliding groove 14-2-6 on the lower handle 14-2, the rear end of the top block 11 is propped against the return spring piece 12 through the return spring piece positioning groove 11-2, and the front end of the top block 11 is propped against the rear end of the pushing block 10. The rear end of the push rod 3 is arranged in a push rod installation hole 11-1 at the front end of the top block 11 through a push rod sliding hole 10-4 on the push block 10. The front end of the push rod 3 sequentially passes through the push rod sliding groove 8-4 on the fixed card 8 and then passes through the push rod guide sliding groove 5-2 on the guide fixing sheet 5 to prop against the rear end of the push pin sheet 2.
The firing device comprises a guide rail 6, a return spring 9, a pushing block 10 and a closing handle 13.
The guide rail 6 is in a strip shape, and the middle part of the guide rail is provided with a sliding mounting groove 6-1 for guiding the closing piece 4 and the guiding fixing piece 5. The rear end of the guide rail 6 is provided with a pushing block mounting groove 6-2 and a universal wheel connecting groove 6-3.
The front part of the pushing block 10 is provided with a reset spring mounting column 10-1, the front end of the spring mounting column 10-1 is provided with a boss 10-2 which is connected with a pushing block mounting groove 6-2 at the rear end of the guide rail 6, two sides of the rear part of the pushing block 10 are provided with triangular pushing wings 10-3, and the center of the pushing block 10 is provided with a push rod sliding hole 10-4.
The closing handle 13 is composed of a left closing handle 13-1 and a right closing handle 13-2. The inner sides of the front ends of the left closing handle 13-1 and the right closing handle 13-2 are provided with pushing block sliding grooves 13-3, the rear parts of the pushing block sliding grooves 13-3 of the front ends of the left closing handle 13-1 and the right closing handle 13-2 are provided with sliding blocks 13-4, and the sliding blocks 13-4 are respectively matched with the closing handle limiting sliding grooves 14-1-5 of the upper fixed handle 14-1 and the closing handle limiting sliding grooves 14-2-5 of the lower fixed handle 14-2. The rear ends of the left closing handle 13-1 and the right closing handle 13-2 are respectively provided with a hinge hole 13-5 which is matched with a closing handle hinge post 14-2-8 at the rear end of the lower handle and is arranged on the lower fixed handle 14-2.
When the firing device is assembled, the reset spring 9 is sleeved on the reset spring mounting column 10-1 at the front part of the push block 10, then the push block 10 is installed in the push block sliding groove 14-2-3, the front end of the reset spring 9 is propped against the reset spring limiting boss 14-2-4, and the triangular push wings 10-3 at the two sides of the rear part of the push block 10 are installed in the push block sliding grooves 13-3 at the inner sides of the left and right closing handles. The upper handle 14-1 is fixedly arranged in an upper handle positioning column mounting hole 14-2-1 respectively arranged at the front end, the middle part and the rear end of the lower handle 14-2 through lower handle positioning columns 14-1 respectively arranged at the front end, the middle part and the rear end, and the upper and lower fixed handles are closed.
When the vascular anastomat is used in operation, the front end of the vascular anastomat guide closing sheet 4 is placed at the edge of vascular wall overturning tissues so as to enable the vascular wall overturning tissues to be anastomosed, the vascular wall overturning tissues are ensured to be just anastomosed with the opening end of the guide closing sheet, the two side closing handles 13 are tightly pinched as much as possible, when the closing handles 13 are pinched, the anastomat 1 can be firmly fixed at the opening end of the guide fixing sheet 5, the edge of the vascular wall tissues is closed, and then the two side closing handles 13 are loosened. The staples 1 are disengaged from the ports of the guide fixing sheets 5 and the vessel stapler is then removed. The ejector pin sheet 2 in the anastomotic pushing device is pushed by the return spring piece 12 to automatically eject the next anastomotic 1 to the forefront through the ejector block 11, the push rod 3 and the ejector pin sheet 2. If the suturing position of the blood vessel needs to be adjusted, the universal wheel 7 can be rotated by the rotating device to find the optimal suturing angle. If additional stitching points are required according to the vascular stitching length, the ordering of the staples 1 should be as compact as possible, with a distance between them of not more than 0.5mm.
Claims (9)
1. A vascular anastomat, which is characterized in that: comprises an anastomotic forming assembly, a rotating device, an anastomotic pushing device, a striking device, a reset spring and a fixed handle;
the anastomotic nail forming assembly comprises an anastomotic nail, a nail pushing sheet, a guiding closing sheet, a guiding fixing sheet, a guide rail and a connecting sheet;
the middle part of the guide rail is provided with a sliding mounting groove for guiding the closing piece and the guiding fixing piece, and the rear end of the guide rail is provided with a pushing block mounting groove and a universal wheel connecting groove;
the front end of the guiding closing piece is provided with an anastomotic nail forming groove and an elastic clamp, the rear end of the guiding closing piece is provided with a universal wheel mounting groove, and the front and rear parts of the guiding closing piece are respectively provided with a guiding fixing piece positioning groove;
the bottom of the guide fixing piece is provided with a sliding groove for installing the anastomat and the nail pushing piece, the bottom of the guide fixing piece is also provided with a push rod guide sliding groove, and the front end and the rear end of the two sides of the bottom of the guide fixing piece are respectively provided with a positioning bulge for being matched with the positioning groove of the guide fixing piece for installation and fixing;
the rotating device comprises a universal wheel and a fixed card; the universal wheel is provided with a universal wheel shaft, the middle part of the universal wheel shaft is provided with a rectangular hole, one side in the rectangular hole is provided with a guide rail installation step and a guide closing piece installation step, and the other side in the rectangular hole is provided with a fixed card installation groove;
one side of the fixed card is provided with a positioning bulge which is used for being matched with a fixed card mounting groove of the universal wheel, the other side of the fixed card is provided with a guide fixing piece assembly groove, one end of the fixed card is provided with a mounting and dismounting handle, and the bottom of the mounting and dismounting handle is provided with a push rod sliding groove;
the anastomotic nail pushing device comprises a nail pushing sheet, a push rod, a pushing block, a jacking block, a return spring piece and a fixed handle;
the fixed handle consists of an upper handle and a lower handle; the front end, the middle part and the rear end of the lower handle are respectively provided with an upper handle positioning column mounting hole, the front part of the lower handle is provided with a universal wheel mounting groove, the middle part of the lower handle is provided with a pushing block sliding groove, a reset spring limiting boss and a closed handle limiting sliding groove, the middle rear part of the lower handle is provided with a jacking block sliding groove, the front end of the jacking block sliding groove is provided with a reset spring piece mounting buckle, the rear end of the lower handle is provided with a closed handle hinge column, and two sides of the lower handle are provided with closed handle mounting grooves;
the front end, the middle part and the rear end of the upper handle are respectively provided with an upper handle positioning column, the front part of the upper handle is provided with a universal wheel mounting groove, the middle part of the upper handle is provided with a pushing block sliding groove, a reset spring limit boss and a closing handle limit sliding groove, the middle rear part of the upper handle is provided with a jacking block sliding groove, the front end of the jacking block sliding groove is provided with a reset spring piece mounting buckle, and two sides of the upper handle are provided with closing handle mounting grooves;
the front end of the nail pushing piece is arc-shaped and is matched with the arc of the bottom of the anastomotic nail, and the rear end of the nail pushing piece is provided with a nail pushing piece sliding boss which is matched with the push rod guiding sliding groove;
the front part of the pushing block is provided with a reset spring mounting column, the front end of the spring mounting column is provided with a boss which is connected with a pushing block mounting groove at the rear end of the guide rail, the two sides of the rear part of the pushing block are provided with triangular pushing wings, and the center of the pushing block is provided with a pushing rod sliding hole;
the front end of the top block is provided with a push rod mounting hole, and the rear end of the top block is provided with a return spring piece positioning groove;
the firing device comprises a guide rail, a reset spring, a pushing block and a closing handle;
the closing handle consists of a left closing handle and a right closing handle; the inner sides of the front ends of the left closing handle and the right closing handle are provided with pushing block sliding grooves, the rear parts of the pushing block sliding grooves on the inner sides of the front ends of the left closing handle and the right closing handle are provided with sliding blocks, the sliding blocks are respectively matched with a closing handle limiting sliding groove of the upper fixed handle and a closing handle limiting sliding groove of the lower fixed handle, the rear ends of the left closing handle and the right closing handle are respectively provided with a hinge hole, and the sliding blocks are matched with a closing handle hinge post at the rear end of the lower handle and are arranged on the lower fixed handle;
when the anastomotic nail pushing device is assembled, the return spring piece is installed in the ejector block sliding groove on the lower handle through the return spring piece installation buckle on the lower handle, the ejector block is installed in the ejector block sliding groove on the lower handle, the rear end of the ejector block is propped against the return spring piece through the return spring piece positioning groove, the front end of the ejector block is propped against the rear end of the pushing block, the rear end of the push rod is installed in the push rod installation hole of the front end of the ejector block through the push rod sliding hole on the pushing block, the front end of the push rod sequentially passes through the push rod sliding groove on the fixed card and then passes through the push rod guide sliding groove on the guide fixing sheet to prop against the rear end of the push rod piece.
2. The vascular anastomat according to claim 1, wherein: when the anastomotic nail forming assembly is assembled, the anastomotic nail and the nail pushing sheet are arranged in the sliding groove of the guide fixing sheet, the push rod is arranged in the guide sliding groove of the push rod, the guide fixing sheet is matched with the guide fixing sheet positioning groove on the guide closing sheet through the positioning bulge, and the guide closing sheet and the guide fixing sheet which are assembled together are arranged in the sliding mounting groove of the guide rail through the connecting sheet.
3. The vascular anastomat according to claim 1, wherein: when the rotary device is assembled, the rear end of the anastomotic nail forming assembly is inserted into a rectangular hole of the universal wheel shaft, and a guide rail mounting step and a guide closing piece mounting step in the rectangular hole are respectively matched and mounted with a universal wheel mounting groove on the guide closing piece and a universal wheel connecting groove on the guide rail; the fixed card is installed in the fixed card mounting groove of universal wheel, and the universal wheel is installed in the universal wheel mounting groove of fixed handle.
4. The vascular anastomat according to claim 1, wherein: when the firing device is assembled, the reset spring is sleeved on the reset spring mounting column at the front part of the pushing block, the pushing block is installed in the pushing block sliding groove, the front end of the reset spring is propped against the reset spring limiting boss, the triangular pushing wings at the two sides of the rear part of the pushing block are inserted in the pushing block sliding grooves at the inner sides of the left and right closing handles, the upper handle is fixedly installed in the upper handle positioning column mounting holes at the front end, the middle part and the rear end of the lower handle through the lower handle positioning column which are respectively arranged at the front end, the middle part and the rear end of the lower handle, and the upper handle positioning column mounting holes which are respectively arranged at the front end, the middle part and the rear end of the lower handle are used for closing the upper and lower fixed handles.
5. The vascular anastomat according to claim 1, wherein: the guide rail is in a strip shape.
6. The vascular anastomat according to claim 1, wherein: the guide rail installation step and the guide closing piece installation step which are arranged on one side in the rectangular hole of the universal wheel shaft are overlapped together to form a whole.
7. The vascular anastomat according to claim 1, wherein: and a hand wheel is arranged in the outer circumferential direction of the universal wheel shaft.
8. The vascular anastomat according to claim 1, wherein: the return spring piece is formed by rolling a strip spring piece.
9. The vascular anastomat according to claim 1, wherein: the anastomotic nail adopts titanium nails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810215270.2A CN108210004B (en) | 2018-03-15 | 2018-03-15 | Vascular anastomat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810215270.2A CN108210004B (en) | 2018-03-15 | 2018-03-15 | Vascular anastomat |
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| Publication Number | Publication Date |
|---|---|
| CN108210004A CN108210004A (en) | 2018-06-29 |
| CN108210004B true CN108210004B (en) | 2023-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810215270.2A Active CN108210004B (en) | 2018-03-15 | 2018-03-15 | Vascular anastomat |
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| CN (1) | CN108210004B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110368047B (en) * | 2019-08-30 | 2021-05-18 | 江苏华夏医疗器械有限公司 | Blood vessel end-to-end anastomosis device |
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| JP2013542000A (en) * | 2010-09-30 | 2013-11-21 | エシコン・エンド−サージェリィ・インコーポレイテッド | Foldable fastener cartridge |
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| ITBO20030783A1 (en) * | 2003-12-23 | 2005-06-24 | New Age Const And Engineeri Ng S P A | LATERAL TERMINAL ANASTOMOSIS DEVICE. |
| US8042720B2 (en) * | 2007-03-29 | 2011-10-25 | Es Vascular Ltd. | Device for affixing of tubular medical accessory to a body passage |
| CA2763794C (en) * | 2009-06-04 | 2017-01-17 | Rotation Medical, Inc. | Apparatus having bowstring-like staple delivery to a target tissue |
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| US4903697A (en) * | 1986-03-27 | 1990-02-27 | Semion Resnick | Cartridge assembly for a surgical stapling instrument |
| JP2013542000A (en) * | 2010-09-30 | 2013-11-21 | エシコン・エンド−サージェリィ・インコーポレイテッド | Foldable fastener cartridge |
| CN107625541A (en) * | 2011-05-27 | 2018-01-26 | 伊西康内外科公司 | For the surgical stapling device for the robot control for preparing the forming nail with different length |
| CN102920494A (en) * | 2012-11-22 | 2013-02-13 | 江西源生狼和医疗器械有限公司 | Circumcision stitching instrument |
| CN107440759A (en) * | 2017-09-22 | 2017-12-08 | 江苏孜航精密五金有限公司 | Disposable hysteroscope internal cutting stapler |
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| CN108210004A (en) | 2018-06-29 |
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