CN116370000A - Endoscopic stapler - Google Patents

Endoscopic stapler Download PDF

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Publication number
CN116370000A
CN116370000A CN202310330603.7A CN202310330603A CN116370000A CN 116370000 A CN116370000 A CN 116370000A CN 202310330603 A CN202310330603 A CN 202310330603A CN 116370000 A CN116370000 A CN 116370000A
Authority
CN
China
Prior art keywords
positioning
block
strip
rack
open slot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310330603.7A
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Chinese (zh)
Inventor
吕波
叶哲彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Guanchuang Medical Technology Co ltd
Original Assignee
Jiangsu Guanchuang Medical Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Guanchuang Medical Technology Co ltd filed Critical Jiangsu Guanchuang Medical Technology Co ltd
Priority to CN202310330603.7A priority Critical patent/CN116370000A/en
Publication of CN116370000A publication Critical patent/CN116370000A/en
Pending legal-status Critical Current

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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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

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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)
  • Endoscopes (AREA)

Abstract

The invention relates to an endoscope anastomat, which aims at solving the problems that the prior endoscope anastomat has a complex structure and a positioning block can not rapidly clamp a rack to prevent the rack from retreating when a movable handle rotates; an open slot is formed in the rear section of the positioning strip, and the front end of the open slot is provided with an inclined opening which is perpendicular to the length direction of the positioning strip and is obliquely formed towards the front end of the positioning strip; the positioning block is internally provided with a telescopic positioning structure, the positioning structure and the open slot are arranged on the same straight line and are matched with the open slot to lock the rack or release the rack, and the invention has the characteristics of simple structure, rapid check of the rack and good check effect.

Description

Endoscopic stapler
Technical Field
The invention relates to an endoscopic stapler, in particular to an endoscopic stapler.
Background
The existing endoscope anastomat realizes that the movable handle drives the rack pushing block to push the rack to advance in the advancing process, achieves the aim of realizing the operation result, and can enable the positioning block to be separated from the rack at proper time, so that the rack is not limited in the advancing process; however, when the movable handle rotates, the positioning block cannot rapidly clamp the rack, and a hysteresis effect is caused, so that the operation result is reversed, the operation efficiency is reduced, and the operation safety of an operator is poor in the operation process.
In summary, the existing endoscope anastomat has the problem that the positioning block can not rapidly clamp the rack to prevent the rack from backing when the movable handle rotates.
Disclosure of Invention
The invention aims to solve the technical problems that: in order to solve the problem that when the movable handle rotates, the positioning block can not rapidly clamp the rack to prevent the rack from backing, the traditional endoscope anastomat is provided.
The technical scheme adopted for solving the technical problems is as follows: the endoscope anastomat comprises a shell, wherein a movable handle and a rack pushing block are arranged in the shell, the rack pushing block is hinged to the top end of the movable handle, a hinge part used for being hinged with one end of a connecting block is further arranged on the movable handle, the other end of the connecting block is hinged with a positioning bar, and a positioning block is sleeved on the positioning bar;
an open slot is formed in the rear section of the positioning strip, and the front end of the open slot is provided with an inclined opening which is perpendicular to the length direction of the positioning strip and is obliquely formed towards the front end of the positioning strip;
the positioning block is internally provided with a telescopic positioning structure, and the positioning structure and the open slot are arranged on the same straight line and are matched with the open slot to lock the rack or release the rack.
Further, the locating strip is in a square strip shape with a thin front part and a thick rear part, the diameters of the front section and the middle section of the locating strip are smaller than those of the rear section of the locating strip, a transition inclined surface is arranged between the middle section and the rear section of the locating strip, and when the locating strip is pushed out forwards, the transition inclined surface extrudes the locating block downwards to separate the locating block from the rack.
Further, the diameters of the front section and the middle section of the locating strip are equal.
Further, the positioning structure comprises a positioning pin and a spring, the positioning pin is perpendicular to the positioning strip, the positioning pin is provided with a limiting boss, the spring is sleeved on the positioning pin, one end of the spring abuts against the rear end of the limiting boss, and the other end of the spring abuts against the inner wall of the positioning block installation position.
Further, the location structure includes installation axle, commentaries on classics piece and torsional spring, and installation axle and locating strip become the cross, and torsional spring and commentaries on classics piece cover are established on the installation axle, and the torsional spring is installed in changeing the piece, and the one end joint of torsional spring is in the breach on the locating piece, and the other end joint of torsional spring is in the draw-in groove of changeing the piece.
Further, the tail end hinge part of the positioning strip is provided with an arc-shaped step surface, and the arc-shaped step surface is matched with the connecting block.
Further, the lower part of the rack pushing block is provided with a first inclined surface, the side surface of the connecting block is provided with a bulge, and the bulge is provided with a second inclined surface matched with the first inclined surface in an inclined way.
Further, the protrusions are prismatic or columnar hexahedrons.
The endoscope anastomat has the beneficial effects that the positioning strip with narrow front and wide rear or thin front and thick rear replaces the prior various limiting blocks and sliding blocks, the rear side of the rear section of the positioning strip is provided with the open slot, and the positioning block is additionally provided with the positioning pin which is matched with the open slot to be locked; when the movable handle rotates, the positioning block can rapidly clamp the rack, and the rack is immediately prevented from retreating.
In conclusion, the invention has the characteristics of simple structure, rapid check of the rack and good check effect.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure of fig. 1 with the housing removed.
Fig. 3 is a schematic view of the structure of the movable handle of the present invention.
Fig. 4 is a schematic view of the structure of the positioning strip of the present invention.
Fig. 5 is a schematic structural view of the positioning strip and the positioning block under the first structure of the present invention.
Fig. 6 is a schematic view of the structure of fig. 5 at another angle.
Fig. 7 is a schematic structural view of a first structural lower positioning block according to the present invention.
Fig. 8 and 9 are schematic structural views of the locating bar and the locating block according to the second structure of the present invention.
FIG. 10 is a schematic view of a positioning block under a second structure of the present invention.
Fig. 11 is a cross-sectional view of fig. 10.
In the figure: 1. the movable handle, 2, the rack pushing block, 3, the hinge part, 4, the connecting block, 5, the locating bar, 6, the locating block, 7, the rack, 8, the transitional inclined surface, 9, the open slot, 10, the inclined opening, 11, the locating pin, 12, the limit boss, 13, the spring, 14, the spring hole, 15, the bulge, 16, the shell, 17, the rotating block, 18, the torsion spring, 19, the notch, 20, the clamping groove, 21, the step surface and 22, the installation shaft.
Detailed Description
The invention will now be described in further detail with reference to the drawings and a preferred embodiment. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
The endoscope anastomat comprises a shell 16, wherein a movable handle 1 and a rack pushing block 2 are arranged in the shell 16, the rack pushing block 2 is hinged with the top end of the movable handle 1 through a bolt, a hinge part 3 is further processed on the movable handle 1, the hinge part 3 is positioned on the upper section of the movable handle 1 and the lower side of the rack pushing block 2, a connecting block 4 is hinged with the hinge part 3, the connecting block 4 is hinged with a positioning bar 5, a positioning block 6 is sleeved on the outer side of the positioning bar 5, and the positioning bar 5 can move back and forth in the positioning block 6.
The locating strip 5 is in a square strip shape with a thin front part and a thick rear part, the diameters of the front section and the middle section of the locating strip 5 are smaller than the diameter of the rear section of the locating strip 5, the diameters of the front section and the middle section of the locating strip 5 are equal, a transition inclined plane 8 exists between the middle section and the rear section of the locating strip 5, an open slot 9 is formed in the rear section of the locating strip 5, and an inclined opening 10 perpendicular to the length direction of the locating strip 5 and formed in the inclined direction of the front end of the locating strip 5 is processed at the front end of the open slot 9.
A positioning structure is also arranged in the positioning block 6, and the positioning structure has two structures;
the first structure comprises a locating pin 11 and a spring 13, wherein the locating pin 11 is perpendicular to the locating strip 6 and is positioned on the same straight line with the open slot 9, a limiting boss 12 is machined on the pin body of the locating pin 11, the spring 13 is sleeved on the locating pin 11, one end of the spring 13 abuts against the rear end of the limiting boss 12, the other end of the spring 13 abuts against the inner wall of the installation position of the locating block 6, and a spring hole 14 for placing a jacking spring is machined at the bottom of the locating block 6.
The second structure comprises a mounting shaft 22, a rotating block 17 and a torsion spring 18, wherein the mounting shaft 22 and the positioning strip 5 are in a cross shape, the torsion spring 18 and the rotating block 17 are sleeved on the mounting shaft 22, the torsion spring 18 is arranged in the rotating block 17, one end of the torsion spring 18 is clamped in a notch 19 on the positioning block, the other end of the torsion spring 18 is clamped in a clamping groove 20 of the rotating block, and a spring hole 14 for placing a jacking spring is processed at the bottom of the positioning block 6.
In order to prevent the positioning strip 5 from being blocked due to excessive backset, the lower part of the rack pushing block 2 is provided with a first inclined surface, the side surface of the connecting block 4 is provided with a protrusion 15, the protrusion 15 is provided with a second inclined surface matched with the inclined surface of the first inclined surface, and the protrusion 15 is a columnar hexahedron.
In order to reduce the shaking of the positioning strip 5 during movement, the tail end of the positioning strip 5 is hinged with an arc-shaped step surface 21, and the arc-shaped step surface 21 supports the connecting block 4 to a certain extent so as to reduce the shaking of the positioning strip 5 during movement.
Example 1
When the movable handle 1 moves anticlockwise:
s1: the positioning strip 5 moves leftwards, the transition inclined surface 8 contacts the positioning pin 11, the positioning pin 11 applies downward force to the positioning block 6, the positioning block 6 presses the jacking spring downwards, and the positioning block 6 is separated from the rack 7; at the same time as the positioning bar 5 is pushed out to the left, the rack pushing block 2 moves up to contact the rack 7 and realize pushing the rack 7 to move to the left.
S2: when the positioning bar 5 moves to the left to the rear section, the positioning pin 11 is pushed into the open slot 9 under the reaction force of the jack spring, and at the same time, the positioning bar 5 rapidly rebounds to lift the locking rack 7 under the reaction force of the jack spring.
When the movable handle 1 acts clockwise:
s1: the positioning strip 5 moves rightwards, the positioning pin 11 follows the inclined opening 10 at the front end (left side) of the open slot 9, and the spring 13 is extruded by the positioning pin 11 so as to slide out of the open slot 9; the rack bar pushing block 2 moves downward away from the rack bar 7 while the positioning bar 5 moves rightward.
Example 2
S1: the positioning strip 5 moves leftwards, the transition inclined surface 8 contacts the rotating block 17, downward force is applied to the positioning block 6 through the rotating block 17, the positioning block 6 presses the jacking spring downwards, and the positioning block 6 is separated from the rack 7; at the same time as the positioning bar 5 is pushed out to the left, the rack pushing block 2 moves up to contact the rack 7 and realize pushing the rack 7 to move to the left.
S2: when the positioning bar 5 moves to the left to the rear section, the turning block 17 is pressed into the open slot 9 under the reaction force of the jack spring, and at the same time, the positioning bar 5 rapidly rebounds to lift the locking rack 7 under the reaction force of the jack spring.
When the movable handle 1 acts clockwise:
s1: the positioning strip 5 moves rightwards, the rotating block 17 rotates the torsion spring 18 along the inclined opening 10 at the front end (left side) of the open slot 9, and the rotating block 17 is allowed to slide out of the open slot 9; the rack bar pushing block 2 moves downward away from the rack bar 7 while the positioning bar 5 moves rightward.
The foregoing description is merely illustrative of specific embodiments of the invention, and the invention is not limited to the details shown, since modifications and variations of the foregoing embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims (8)

1. An endoscopic stapler, includes casing, its characterized in that: the movable handle is hinged to the top end of the movable handle, a hinge part used for being hinged to one end of the connecting block is further arranged on the movable handle, the other end of the connecting block is hinged to the positioning bar, and the positioning bar is sleeved with a setting position block;
an open slot is formed in the rear section of the positioning strip, and the front end of the open slot is provided with an inclined opening which is perpendicular to the length direction of the positioning strip and is obliquely formed towards the front end of the positioning strip;
the positioning block is internally provided with a telescopic positioning structure, and the positioning structure and the open slot are arranged on the same straight line and are matched with the open slot to lock the rack or release the rack.
2. The endoscopic stapler according to claim 1, wherein: the positioning strip is in a square strip shape with a thin front part and a thick rear part, the diameters of the front section and the middle section of the positioning strip are smaller than those of the rear section of the positioning strip, a transition inclined surface is arranged between the middle section and the rear section of the positioning strip, and when the positioning strip is pushed forward, the transition inclined surface extrudes the positioning block downwards to separate the positioning block from the rack.
3. The endoscopic stapler according to claim 1, wherein: the diameters of the front section and the middle section of the locating strip are equal.
4. The endoscopic stapler according to claim 1, wherein: the positioning structure comprises a positioning pin and a spring, wherein the positioning pin is perpendicular to the positioning strip, the positioning pin is provided with a limiting boss, the spring is sleeved on the positioning pin, one end of the spring abuts against the rear end of the limiting boss, and the other end of the spring abuts against the inner wall of the positioning block installation position.
5. The endoscopic stapler according to claim 1, wherein: the positioning structure comprises a mounting shaft, a rotating block and a torsion spring, wherein the mounting shaft and the positioning strip are in a cross shape, the torsion spring and the rotating block are sleeved on the mounting shaft, the torsion spring is arranged in the rotating block, one end of the torsion spring is clamped in a notch on the positioning block, and the other end of the torsion spring is clamped in a clamping groove of the rotating block.
6. The endoscopic stapler according to claim 1, wherein: the tail end hinge of the locating strip is provided with an arc-shaped step surface which is matched with the connecting block.
7. The endoscopic stapler according to claim 1, wherein: the lower part of the rack pushing block is provided with a first inclined surface, the side surface of the connecting block is provided with a bulge, and the bulge is provided with a second inclined surface matched with the inclined surface of the first inclined surface.
8. The endoscopic stapler according to claim 6, wherein: the protrusions are prismatic or columnar hexahedrons.
CN202310330603.7A 2023-03-30 2023-03-30 Endoscopic stapler Pending CN116370000A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310330603.7A CN116370000A (en) 2023-03-30 2023-03-30 Endoscopic stapler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310330603.7A CN116370000A (en) 2023-03-30 2023-03-30 Endoscopic stapler

Publications (1)

Publication Number Publication Date
CN116370000A true CN116370000A (en) 2023-07-04

Family

ID=86972596

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310330603.7A Pending CN116370000A (en) 2023-03-30 2023-03-30 Endoscopic stapler

Country Status (1)

Country Link
CN (1) CN116370000A (en)

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