CN110251178B - Disassembling jig and disassembling method thereof - Google Patents

Disassembling jig and disassembling method thereof Download PDF

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Publication number
CN110251178B
CN110251178B CN201810407343.8A CN201810407343A CN110251178B CN 110251178 B CN110251178 B CN 110251178B CN 201810407343 A CN201810407343 A CN 201810407343A CN 110251178 B CN110251178 B CN 110251178B
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Prior art keywords
nail bin
sidewall
side wall
jig
magazine
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CN110251178A (en
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孙宝峰
周小朋
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Jiangsu Fengh Medical Equipment Co Ltd
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Jiangsu Fengh Medical Equipment Co Ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B17/07207Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously the staples being applied sequentially
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/068Surgical staplers, e.g. containing multiple staples or clamps
    • A61B17/072Surgical staplers, e.g. containing multiple staples or clamps for applying a row of staples in a single action, e.g. the staples being applied simultaneously
    • A61B2017/07214Stapler heads
    • A61B2017/07271Stapler heads characterised by its cartridge

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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)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

The invention discloses a disassembly jig and a disassembly method, which are suitable for a medical anastomat, wherein the disassembly jig comprises a body, a first clamping device and a second clamping device, wherein the body comprises a first area and a second area; the detaching structure is arranged in the first area and located on the first surface of the body part, and comprises: a first side wall; a second sidewall parallel to and opposite to the first sidewall; the two ends of the abutting part are respectively connected with the first side wall and the second side wall, and the abutting part is parallel to the body; the holding structure is arranged in the second area; the anastomat comprises an operation far end, the operation far end comprises a nail bin assembly and a nail bin frame, the nail bin assembly is provided with a nail bin, the nail bin is provided with a nail bin front end, and the nail bin front end is exposed out of the nail bin frame; when the nail bin assembly is disassembled from the operation far end of the anastomat by using the disassembling jig, the abutting part at the front end of the nail bin abuts against the abutting part. The disassembling jig can avoid slipping in the disassembling process, an effective acting force arm is increased through the holding structure, and the nail bin assembly can be disassembled from the nail bin frame by using smaller force.

Description

Disassembling jig and disassembling method thereof
Technical Field
The invention relates to a disassembling jig and a disassembling method thereof, in particular to a disassembling jig for disassembling a nail bin assembly of a medical anastomat and a disassembling method thereof.
Background
The anastomat is equipment used for replacing manual suturing in medicine, the main working principle is that titanium nails are used for separating and inosculating tissues, the anastomat is similar to a stapler, and due to the fact that the anastomat is convenient to use, tight in suturing and proper in tightness, few side effects and operation complications exist, and even the nidus excision of a tumor patient can be achieved, the anastomat is highly favored and advocated by clinical surgeons at home and abroad. According to different application ranges, the anastomat can be mainly divided into a skin anastomat, a circular anastomat for digestive tracts (esophagus, stomach and intestine and the like), a rectal anastomat, a circular hemorrhoid anastomat, a blood vessel anastomat, a hernia anastomat, a lung cutting anastomat and the like.
The anastomat comprises an operation far end, the operation far end comprises a jaw assembly and a nail bin assembly, the nail bin assembly comprises a nail bin and a bracket, and a nail pushing block and anastomotic nails are arranged in the nail bin; the jaw assembly comprises a nail bin frame and an anastomotic nail forming piece; the nail bin and the bracket are mutually assembled and then are assembled in the accommodating space of the nail bin frame. When the anastomosis operation is executed, the nail pushing plate slides along the nail bin to push out the anastomosis nails in the nail bin, and the front ends of the anastomosis nails penetrate through tissues to be anastomosed and are contacted with the forming grooves of the anastomosis nail forming parts to form the anastomosis nails after the anastomosis nails are ejected. Wherein, among the anastomosis operation, the nail storehouse belongs to disposable equipment, promptly, accomplish out the nail anastomosis operation back at the anastomosis nail, if need continue to carry out the anastomosis operation, need change new nail storehouse, and current anastomat, the combination belongs to the tight fit between nail storehouse and bracket and the nail storehouse frame, the tight fit has increased the joint strength of nail storehouse subassembly with the subassembly of keeping silent on the one hand, but on the other hand, often need great power to demolish when the doctor need change the nail storehouse subassembly, has caused the inconvenience that the doctor used. In addition, when changing the nail storehouse, need the doctor to apply effort in the protruding nail storehouse front end that stretches out in the nail storehouse frame of nail storehouse, and the protruding length in the nail storehouse front end that stretches out in the nail storehouse frame of nail storehouse is very limited, and effective arm of force is less promptly for dismantle required effort is great, and because the doctor when performing the operation, often can be stained with patient's tissue fluid, blood etc. on the gloves of wearing, increased the degree of difficulty of dismantling the nail storehouse subassembly, for example difficult application of force in short nail storehouse front end and the problem of skidding easily.
In view of this, the present invention provides an auxiliary tool, which is intended to help a doctor conveniently and effectively disassemble a used nail bin.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a disassembling jig and a disassembling method thereof, and solves the problem that a nail bin assembly is not easy to separate from a nail bin frame.
The invention provides a disassembly jig which is suitable for a medical anastomat, and comprises a body, a first clamping device, a second clamping device and a first clamping device, wherein the body comprises a first area and a second area; the detaching structure is arranged in the first area and located on the first surface of the body, and the detaching structure comprises: a first side wall protruding from the first surface to the body; a second side wall protruding from the first surface to the body, the second side wall being parallel and opposite to the first side wall; the abutting part is positioned between the first side wall and the second side wall, two ends of the abutting part are respectively connected with the first side wall and the second side wall, and the abutting part is parallel to the body; a holding structure arranged in the second area; the anastomat comprises an operation far end, the operation far end comprises a nail bin assembly and a nail bin frame, the nail bin assembly is provided with a nail bin, the nail bin is provided with a nail bin front end, and the nail bin front end is exposed out of the nail bin frame; when the disassembly jig is used for disassembling the nail bin assembly from the nail bin frame at the operation far end of the anastomat, the front end of the nail bin abuts against the abutting part.
As an optional technical solution, when the staple cartridge assembly is detached from the staple cartridge rack at the distal operation end of the stapler by using the detachment jig, an acting force is applied to the holding structure along a direction away from the staple cartridge rack, the holding structure is lifted upwards along the direction away from the staple cartridge rack, and the abutting portion pushes against the front end of the staple cartridge so that the staple cartridge assembly and the staple cartridge rack are separated from each other.
As an optional technical solution, the portable electronic device further includes a third sidewall, the third sidewall is located between the first sidewall and the second sidewall, two ends of the third sidewall are respectively connected to the first sidewall and the second sidewall, and the abutting portion is formed by extending from the third sidewall toward the first end of the body.
As an optional technical scheme, the inclination of the third side wall is greater than or equal to the inclination of the inclined surface of the front end of the nail bin.
As an optional technical solution, the first side wall, the second side wall and the third side wall form a U-shaped structure, an opening of the U-shaped structure is located at the first end of the body, wherein when the staple cartridge assembly is detached from the staple cartridge rack at the distal operation end of the stapler by using the detachment jig, the front end of the staple cartridge enters the U-shaped structure from the opening.
As an optional technical solution, the third sidewall protrudes obliquely from the first side of the body.
As an optional technical solution, the third sidewall divides the body into the first region and the second region, and a distance from the third sidewall to the first end of the body is smaller than a distance from the third sidewall to a second end of the body, wherein the second end is opposite to the first end.
As an optional technical solution, the first sidewall has a first extending portion, the second sidewall has a second extending portion, the first extending portion extends from the first sidewall toward the second sidewall, and the second extending portion extends from the second sidewall toward the first sidewall; the nail bin is provided with a first gap corresponding to the first extension part, and is provided with a second gap corresponding to the second extension part; the nail bin frame is provided with a first bulge corresponding to the first notch, and a second bulge corresponding to the second notch; when the nail bin is positioned in the nail bin frame, the first bulge enters the first notch, and the second bulge enters the second notch; when the disassembling jig is assembled at the operation far end, the first extending part enters the first notch, the end part of the first extending part penetrates through the first notch and abuts against the first protrusion, the second extending part enters the second notch, and the end part of the second extending part penetrates through the second notch and abuts against the second protrusion.
As an optional technical solution, the holding structure includes a first extending wall, a second extending wall and a fourth side wall, the first extending wall extends from the first side wall toward the second end of the body, the second extending wall extends from the second side wall toward the second end of the body, the fourth side wall is disposed on the second end of the body, two ends of the fourth side wall are respectively connected to the first extending wall and the second extending wall, and the second end is opposite to the first end of the body.
As an optional technical solution, surfaces of the first extending wall and the second extending wall away from the first side are wavy surfaces.
As an optional technical solution, the body includes a second surface, the second surface is opposite to the first surface, the holding structure is disposed on the second surface, and the holding structure is a tab structure protruding from the second surface of the body; or the surface of the first surface corresponding to the area of the holding structure is provided with an anti-slip pattern; or the first surface forms a wave-shaped surface after surface treatment of the area corresponding to the holding structure.
As an optional technical solution, the body includes a second surface, the second surface is opposite to the first surface, and the anti-slip pattern is disposed on the second surface.
The invention also provides a method for disassembling the nail bin assembly, which is suitable for the medical anastomat and at least comprises the following steps of disassembling;
step 1 provides a disassembling jig according to any one of the above technical solutions;
step 2, assembling and disassembling the jig to the operation far end of the anastomat; and
step 3 lifts the holding structure of the disassembling jig along the direction far away from the nail bin frame, and the nail bin assembly at the far end of the operation is disassembled, so that the nail bin assembly and the nail bin frame are separated from each other.
Compared with the prior art, the invention provides a novel dismounting jig and a dismounting method thereof, the front end of the nail bin is pushed and abutted by the abutting part of the dismounting structure, the accommodating space of the dismounting structure prevents the front end of the nail bin from shaking in the dismounting process, and the slipping caused by shaking is avoided; and the effective acting force arm is increased through the holding structure, and the nail bin assembly can be detached from the nail bin frame by using smaller force, so that the nail bin assembly is more convenient to detach, and the operability is improved.
Drawings
Fig. 1A to fig. 1C are schematic views of a disassembly jig according to an embodiment of the invention at different viewing angles;
FIG. 1D is a schematic diagram of a part of a structure of a disassembling jig according to an embodiment of the invention;
FIG. 2 is a schematic view of a detachment fixture and an operative distal end of an stapler according to an embodiment of the present invention before they are combined;
FIG. 3 is a schematic view of the disassembled jig and the distal end of the stapler according to an embodiment of the present invention;
FIG. 4 is an enlarged schematic view of region A of FIG. 3;
FIG. 5 is a schematic view of the disassembled jig and the distal operating end of the stapler combined together at another viewing angle according to an embodiment of the invention;
FIG. 6 is an enlarged schematic view of region B of FIG. 5;
FIGS. 7A and 7B are schematic views illustrating a process of detaching a magazine from a detaching jig according to an embodiment of the present invention;
FIG. 8 is a schematic view of a staple cartridge coupled to a cartridge carrier;
FIG. 9 is an exploded view of the staple cartridge and staple cartridge rack of FIG. 8;
FIG. 10 is a schematic view of the separation of a staple cartridge from the cartridge rack.
Fig. 11 is a schematic view of a staple cartridge removing jig according to another embodiment of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Fig. 1A to fig. 1C are schematic views of a disassembly jig according to an embodiment of the present invention at different viewing angles, and fig. 1D is a schematic view of a partial structure of the disassembly jig according to an embodiment of the present invention.
As shown in fig. 1A to 1C, the disassembly jig 100 includes a body 101, the body 101 includes a first region and a second region adjacent to each other, the disassembly structure is located in the first region, and the holding structure 106 is located in the second region, wherein the body 101 further has a first surface 1011 and a second surface 1012 opposite to each other. The disassembly structure comprises a first side wall 102, a second side wall 103 and a third side wall 104, wherein the first side wall 102 and the second side wall 103 are parallel and opposite, the third side wall 104 is located between the first side wall 102 and the second side wall 103, two ends of the third side wall 104 are respectively connected with the first side wall 102 and the second side wall 103, the third side wall 104 comprises an abutting part 1041, the abutting part 1041 extends from the third side wall 104 towards the first end part of the body 101, the abutting part 1041 is parallel to the body 101, a gap D1 is formed between the abutting part 1041 and the body 101, the gap D1 is equal to or slightly larger than the height of the staple cartridge 202, the height of the staple cartridge 202 refers to the distance between the upper surface where the staple outlet hole of the staple cartridge 202 is located and the bottom surface of the staple cartridge 202, and the upper surface of the staple cartridge 202 is opposite to the bottom surface. Preferably, as shown in fig. 6 to 7B, when the removal jig 100 is used to remove the magazine assembly, the abutting portion 1041 abuts against a portion of the front end 2023 of the magazine exposed from the magazine frame 201, and the abutting portion 1041 does not contact the magazine frame 201 all the time. In this embodiment, when the removal jig 100 is used to remove the magazine assembly from the magazine frame 201, a force is applied to the holding structure 106 along a direction F (clockwise) indicated by an arrow in fig. 7A, the holding structure 106 is lifted, and the abutting portion 1041 pushes against the front end 2023 of the magazine, so that the magazine assembly and the magazine frame 201 are separated from each other. The holding structure 106 is equivalent to an effective force arm, that is, when the magazine assembly is disassembled by using the disassembling jig 100, the effective force arm is the sum of the length of the holding structure 106 and the length of the front end 2023 of the magazine, the effective force arm is extended, and according to the mechanical principle, the acting force of the disassembled magazine assembly can be remarkably reduced, so that the labor-saving effect is realized, and the operation by a doctor is facilitated.
As shown in fig. 1C, the holding structure 106 includes a first extending wall 1022, a second extending wall 1032, and a fourth side wall 107, the first extending wall 1022 extends from the first side wall 102 toward the second end of the body 101, the second extending wall 1032 extends from the second side wall 103 toward the second end of the body 101, the fourth side wall 107 is disposed at the second end of the body 101, two opposite ends of the fourth side wall 107 are respectively connected to the first extending wall 1022 and the second extending wall 1032, wherein the second end of the body 101 is opposite to the first end, and the fourth side wall 107 protrudes from the second end of the body 101. In this embodiment, the surfaces of the first extending wall 1022 and the second extending wall 1032 far away from the first surface 1011 are wavy surfaces, which are convenient for the doctor to hold on one hand, and increase the contact area during the holding process of the doctor on the other hand, thereby solving the problem of slippage during the detachment process. In addition, the heights of the first extending wall 1022 and the second extending wall 1032 are smaller than the heights of the first sidewall 102 and the second sidewall 103, respectively.
Fig. 1A to 1C illustrate a preferred embodiment of the grip structure 106 of the detachment jig 100, but not limited thereto.
Fig. 11 is a schematic view of a staple cartridge removing fixture according to another embodiment of the present invention, wherein components in fig. 11 having the same reference numerals as those in fig. 1A have similar functions and are not repeated herein. As shown in fig. 11, the disassembling jig 100 'differs from the disassembling jig 100 only in that the holding structure 109 of the disassembling jig 100' is disposed on the second surface 1012 of the body 101, and preferably, the holding structure 109 is a pull ring structure protruding from the second surface 1012 of the body 101, and the pull ring structure can be located at the second end of the body 101. When the removal jig 100 'is used to remove the magazine assembly, the removal structure of the removal jig 100' is coupled to the front end of the magazine, and applies a force to the holding structure 109 along a direction F (clockwise) indicated by an arrow in fig. 7A, so that the holding structure 109 is pulled up, and the abutting portion 1041 pushes against the front end 2023 of the magazine, so that the magazine assembly and the magazine frame 201 are separated from each other.
In order to further improve the anti-slip effect, the body 101 further includes a second surface 1012 opposite to the first surface 1012, the second surface 1012 is provided with the anti-slip pattern 108, for example, a plurality of strip-shaped structures protruding from the second surface 1012 of the body 101, and the anti-slip pattern 108 is also used for increasing the roughness of the second surface 1012 of the body 101, so as to prevent the problem of slipping in the detaching process due to excessive wet slipping on the gloves worn by the doctor when the doctor holds the gloves.
In addition, in other embodiments of the present invention, the holding structure 106 may not include the first extending wall 1022, the second extending wall 1032 and the fourth side wall 107, in this case, the second area of the body 101 may be regarded as the holding structure 106, and in order to achieve the same anti-slip and holding effects, a surface treatment may be performed on the first surface 1011 of the body 101 at a position corresponding to the holding structure 106, for example, the surface of the first surface 1011 corresponding to the area of the holding structure 106 is provided with the anti-slip pattern 108, and the surface treatment of the area corresponding to the holding structure 106 may also be a wavy surface to facilitate holding.
As shown in fig. 1C, the first sidewall 102, the second sidewall 103 and the third sidewall 104 form a U-shaped structure, and an opening of the U-shaped structure is located at the first end of the body 101; the first side wall 102 to the third side wall 104 respectively protrude from the first surface 1011 to the body 101, the U-shaped structure has an accommodating portion 105, and the accommodating portion 105 corresponds to a part of the magazine 202 (as shown in fig. 2 and 3), that is, the front end 2023 of the magazine 202 can enter the accommodating portion 105 from the opening of the U-shaped structure (as shown in fig. 2 and 3). The first side wall 102 and the second side wall 103 are used for preventing the front end 2023 of the staple cartridge from shaking in the accommodating portion 105 in the horizontal direction during the detachment process, so as to avoid slipping caused by shaking. In addition, the first sidewall 102 and the second sidewall 103 respectively protrude perpendicularly from two opposite edges of the first surface 1011 of the body 101; the third sidewall 104 protrudes obliquely from the first surface 1011 of the body 101, preferably, the inclination of the third sidewall 104 is greater than or equal to the inclination of the oblique surface of the magazine front end 2023, and the inclination of the third sidewall 104 is greater than the inclination of the oblique surface of the magazine front end 2023, so that the disassembling jig 100 can be assembled to the magazine front end 2023 more conveniently. With reference to fig. 1C, the inclination of the third sidewall 104 in the present invention means that the body 101 is defined as a horizontal plane, and the inclination degree of the third sidewall 104 relative to the body 101 is regarded as an inclination, or an included angle a between the third sidewall 104 and the body 101 is regarded as an inclination, since the drawing direction in fig. 1C is a viewing angle after the dismounting jig 100 is turned over by 180 °, the included angle a is between 90 ° and 180 °, and therefore, after the dismounting jig 100 is turned over by 180 ° again, the included angle between the third sidewall 104 and the body 101 is substantially between 0 ° and 90 °. Similarly, as shown in FIG. 9, the inclination of the slanted surface of the front end 2023 of the staple cartridge defines the bottom of the staple cartridge 202 as a horizontal plane, and the degree of inclination of the slanted surface with respect to the bottom is regarded as the inclination, or the angle between the slanted surface and the bottom is regarded as the inclination.
With continued reference to fig. 1A to 1C, the first sidewall 102 has a first extending portion 1021, the second sidewall 103 has a second extending portion 1031, wherein the first extending portion 1021 is opposite to the second extending portion 1031, and the first extending portion 1021 extends from the first sidewall 102 toward the second sidewall 103; the second extension 1031 extends from the second sidewall 103 toward the first sidewall 102; the spacing between the first sidewall 102 and the second sidewall 103 is slightly greater than or equal to the width of the staple cartridge 202. When the tool 100 is disassembled to disassemble the magazine, the first extension portion 1021 correspondingly enters the first notch 2021 of the magazine 202 (as shown in fig. 4), the second extension portion 1031 correspondingly enters the second notch 2022 of the magazine 202 (as shown in fig. 4), and the abutting portion 1041 abuts against the lower surface of the front end 2023 of the magazine 202 (as shown in fig. 6).
With reference to fig. 4 and 9, the first extension portion 1021 and the second extension portion 1031 function in that when the tool 100 is disassembled from the magazine 202, an end of the first extension portion 1021 passes through the first gap 2021 of the magazine 202 and substantially abuts against the first protrusion 2011 of the magazine rack 201, and an end of the second extension portion 1031 passes through the second gap 2022 of the magazine 202 and substantially abuts against the second protrusion 2012 of the magazine rack 201; when the magazine 202 is removed, a force is applied to the holding structure 106 along a direction F (clockwise direction) indicated by an arrow in fig. 7A, the holding structure 106 is lifted, and a position where the end of the first extension portion 1021 abuts against the first protrusion 2011 and a position where the end of the second extension portion 1031 abuts against the second protrusion 2012 can be regarded as a fulcrum of the rotation of the removal jig 100; further, when the holding structure 106 rotates around the fulcrum, the first extension portion 1021 applies a force to the first protrusion 2011, and the second extension portion 1031 applies a force to the second protrusion 2012, which accelerates the separation of the cartridge rack 201 from the cartridge assembly.
It should be noted that, in the actual manufacturing process of the detachment fixture 100, the first to fourth sidewalls 102 to 107 and the first and second extension walls 1022 and 1032 are often manufactured by integral molding, for example, by injection molding or 3D printing. Therefore, the disassembling jig 100 of the present invention can also be regarded as the body 101 is divided into a first region and a second region by the third sidewall 104, wherein a region defined from the third sidewall 104 to the first end of the body 101 is a disassembling structure, and a region defined from the third sidewall 104 to the second end of the body 101 is a holding structure 106. In this embodiment, the third sidewall 104 is disposed near the first end of the body 101, i.e., the distance from the third sidewall 104 to the first end is smaller than the distance from the third sidewall 104 to the second end.
FIG. 8 is a schematic view of the staple cartridge coupled to the staple cartridge rack; FIG. 9 is an exploded view of the staple cartridge and staple cartridge rack of FIG. 8; FIG. 10 is a schematic view of the separation of a staple cartridge from the cartridge rack.
In order to more accurately understand the process of removing the magazine 202 (as shown in fig. 2) by the removal jig 100 of the present invention, the combination of the magazine 202 and the magazine rack 201 will be described first. In fig. 8 to 10, for the purpose of simple illustration, the staple forming member 203 (as shown in fig. 2) is omitted, but it is to be understood that the coupling manner between the cartridge assembly and the cartridge rack 201 is a known technique, the coupling manner between the cartridge assembly and the cartridge rack 201 is simply described in the present invention, and the more detailed coupling manner can be referred to the already disclosed description in the prior art.
As shown in fig. 8 to 10, the staple cartridge 202 and the bracket 204 are assembled in advance to form a staple cartridge assembly, and the staple cartridge assembly is assembled in the accommodating space 2018 of the staple cartridge frame 201, wherein the staple cartridge 202 has a first notch 2021 and a second notch 2022 opposite to each other, the first notch 2021 is disposed on a first side of the staple cartridge 202, the second notch 2022 is disposed on a second side of the staple cartridge 202, the first side is parallel to and opposite to the second side, and the first notch 2021 and the second notch 2022 are recessed toward the inside of the staple cartridge 202 from the first side and the second side, respectively. A first protrusion (not shown) is disposed on a side of the first notch 2021 close to the front end 2023 of the magazine, a second protrusion 2024 is disposed on a side of the second notch 2022 close to the front end 2023 of the magazine, and the first protrusion and the second protrusion 2024 respectively protrude from the first edge and the second edge toward the outside of the magazine 202.
The bracket 204 is combined with the bottom of the nail bin 202, and the bracket 204 covers part of the side surface of the nail bin 202, wherein the bracket 204 has a first convex engaging portion (not shown) and a second convex engaging portion 2041, the first convex engaging portion corresponds to the first convex engaging portion, and the first convex engaging portion is located below the first convex engaging portion; the second convex engaging portion 2041 corresponds to the second convex portion 2024, and the second convex engaging portion 2041 is located below the second convex portion 2024. A first clamping concave part 2017 is arranged on the first side 2013 of the nail bin frame 201 corresponding to the first clamping convex part; a second engaging recess (not shown) is provided in the magazine holder 201 corresponding to the second engaging protrusion 2041; corresponding to the first convex portion, the first side 2013 of the staple cartridge holder 201 is provided with a first concave portion 2015; corresponding to the second protrusion 2024, the second side 2014 of the cartridge rack 201 is provided with a second recess 2016; a first protrusion 2011 is arranged on the first side 2013 of the staple cartridge frame 201 corresponding to the first notch 2021 of the staple cartridge 202; corresponding to the second notch 2022 of the staple cartridge 202, a second protrusion 2012 is disposed on the second side 2014 of the staple cartridge rack 201; the first side 2013 is parallel to and opposite to the second side 2014. In the present invention, the combination of the bracket 204 and the nail bin 202 is a known technical means, and the connection can be made by referring to the combination already disclosed, which is not described herein again.
As shown in fig. 8 and 9, the magazine assembly is assembled in the accommodating space 2018 of the magazine frame 201, the front end 2023 of the magazine 202 protrudes out of the accommodating space 2018, the first engaging convex portion of the bracket 204 is embedded in the first engaging concave portion 2017 of the magazine frame 201, the second engaging convex portion 2041 of the bracket 204 is embedded in the second engaging concave portion of the magazine frame 201, the engaging convex portion and the engaging concave portion are in interference fit, and the interference fit limits the displacement of the magazine assembly in the accommodating space 2018 in the Z-axis direction; the first convex part of the nail bin 202 enters the first concave part 2015 of the nail bin frame 201, the second convex part 2024 of the nail bin 202 enters the second concave part 2016 of the nail bin frame 201, the first bulge 2011 of the nail bin frame 201 enters the first notch 2021, the second bulge 2012 of the nail bin frame 201 enters the second notch 2022 of the nail bin 201, and the convex part, the concave part, the bulge and the notch are movably combined to limit the horizontal sliding of the nail bin assembly in the accommodating space 2018; that is, the coupling between the magazine 202 and the magazine frame 201 is a movable connection and a non-fixed connection, the connection between the bracket 204 and the magazine frame 201 is a fixed connection, and the connection between the magazine assembly and the magazine frame 201 is a fixed connection because the connection between the bracket 204 and the magazine 202 is a fixed connection. As shown in fig. 10, when the magazine assembly is separated from the magazine rack 201, the finger holder 204 is substantially separated from the magazine rack 201, that is, the first engaging protrusion and the first engaging recess 2017 are separated from each other, the second engaging protrusion 2041 and the second engaging recess are separated from each other, the first protrusion and the second protrusion 2024 are separated from the corresponding first recess 2015 and second recess 2016, the first gap 2021 and the second gap 2022 are separated from the corresponding first protrusion 2011 and second protrusion 2012, and the magazine assembly is substantially separated from the magazine rack 201.
Fig. 2 is a schematic view of the detachment jig of the present invention before being combined with the distal operation end 200 of the stapler; fig. 3 is a schematic diagram of the disassembled jig of the present invention combined with the distal operation end 200 of the stapler; FIG. 4 is an enlarged schematic view of region A of FIG. 3; fig. 5 is a schematic view of the detachment jig of the present invention combined with the distal operation end 200 of the stapler at another view angle; FIG. 6 is an enlarged schematic view of region B of FIG. 5; fig. 7A and 7B are schematic views illustrating a process of detaching a magazine by the detachment jig of the present invention. For the purpose of simplifying the drawing, only a partial structure of the operation distal end 200 of the stapler is illustrated in fig. 2 to 7B.
As will be described in detail with reference to fig. 2 to 7B, the detachment jig 100 of the present invention detaches the cartridge assembly of the distal operating end 200 of the stapler, wherein the primary purpose of the detachment jig 100 is to separate the bracket 204 of the cartridge assembly from the cartridge frame 201, and further separate the cartridge 202 fixedly connected to the bracket 204 from the cartridge frame 201.
As shown in fig. 2 to fig. 6, the disassembling jig 100 is provided, the disassembling jig 100 is assembled to the distal operation end 200, the front end 2023 of the magazine 202 and a part of the front end of the magazine frame 201 enter the accommodating portion 105 of the disassembling structure, at this time, the first extending portion 1021 enters the first notch 2021, the end of the first extending portion 1021 protrudes from the first notch 2021 and abuts against the first protrusion 2011, the second extending portion 1031 enters the second notch 2022, the end of the second extending portion 1031 protrudes from the second notch 2022 and abuts against the second protrusion 2012, and the abutting portion 1041 abuts against the lower surface of the front end 2023 of the magazine.
As shown in fig. 7A, when the magazine assembly is disassembled, the holding structure 106 is lifted upwards along the direction indicated by the arrow F, at this time, the abutting portion 1041 drives the front end 2023 of the magazine to move upwards along the direction indicated by the arrow F, the first surface 1011 of the body 101 abuts against the upper surface of the front end 2023 of the magazine 202 (the upper surface is the surface where the nail outlet hole of the magazine 202 is located), the end of the first extension portion 1021 abuts against the first protrusion 2011, and the end of the second extension portion 1031 abuts against the second protrusion 2012; taking the abutting position of the end of the first extending portion 1021 and the first protrusion 2011 and the abutting position of the end of the second extending portion 1031 and the second protrusion 2012 as fulcrums, continuing to lift the holding structure 106 upward along the direction indicated by the arrow F until the first engaging convex portion and the second engaging convex portion 2041 on the bracket 204 disengage from the corresponding first engaging concave portion 2017 and the corresponding second engaging concave portion, respectively (for the separation relationship between the first engaging convex portion and the second engaging convex portion 2041 on the bracket 204 and the corresponding first engaging concave portion 2017 and the second engaging concave portion, respectively, see the above description of the combination relationship between the first engaging convex portion and the second engaging convex portion 2041 and the corresponding first engaging concave portion 2017 and the corresponding second engaging concave portion in fig. 8 to 9); as can be seen from fig. 9 and 10, the first protrusion 2024 and the second protrusion 2024 of the staple cartridge 202 are disengaged from the first recess 2015 and the second recess 2016 of the staple cartridge holder 201, respectively, and the first gap 2021 and the second gap 2022 of the staple cartridge 202 are disengaged from the first protrusion 2011 and the second protrusion 2012 of the staple cartridge holder 201, respectively. In this embodiment, the direction indicated by the arrow F is clockwise, and the mechanism of detaching the magazine assembly from the magazine rack 201 is similar to the lever mechanism. Because the disassembling jig 100 is provided with the holding structure 106, the effective force arm of a doctor can be increased by the holding structure 106 when disassembling the nail bin assembly, and the nail bin assembly can be separated from the nail bin frame 201 by a small acting force.
As shown in fig. 7B, the first extension portion 1021 and the second extension portion 1031 of the removal jig 100 are respectively combined in the first gap 2021 and the second gap 2022 of the magazine 202, and the distal end of the magazine 202 is not provided with a fastening structure for fastening with the magazine rack 201, so that the magazine assembly can be directly taken out of the accommodating space 2018 of the magazine rack 201 by using the removal jig 100 in the state shown in fig. 7A.
In one embodiment of the present invention, the stapler is, for example, a cutting stapler.
In addition, the invention also provides a method for disassembling the nail bin assembly, which specifically comprises the following steps of;
step 1 provides the disassembly jig and the anastomat;
step 2, assembling and disassembling the jig to the operation far end of the anastomat; and
step 3, lifting the holding structure of the disassembling jig along the clockwise direction, and disassembling the nail bin assembly at the far end of the operation of the anastomat, so that the nail bin assembly is separated from the nail bin frame.
In summary, the invention provides a novel dismounting jig and a dismounting method thereof, wherein the abutting part of the dismounting structure pushes against the front end of the nail bin, and the accommodating space of the dismounting structure prevents the front end of the nail bin from shaking in the dismounting process, so that the slipping caused by shaking is avoided; and the effective acting force arm is increased through the holding structure, and the nail bin assembly can be detached from the nail bin frame by using smaller force, so that the nail bin assembly is more convenient to detach, and the operability is improved.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (13)

1. A disassembly jig is suitable for a medical anastomat and is characterized by comprising a disassembly jig body,
a body including a first region and a second region;
the detaching structure is arranged in the first area and located on the first surface of the body, and the detaching structure comprises:
a first side wall protruding from the first surface to the body;
a second side wall protruding from the first surface to the body, the second side wall being parallel and opposite to the first side wall;
the abutting part is positioned between the first side wall and the second side wall, two ends of the abutting part are respectively connected with the first side wall and the second side wall, and the abutting part is parallel to the body;
a holding structure arranged in the second area;
the anastomat comprises an operation far end, the operation far end comprises a nail bin assembly and a nail bin frame, the nail bin assembly is provided with a nail bin, the nail bin is provided with a nail bin front end, and the nail bin front end is exposed out of the nail bin frame; when the disassembly jig is used for disassembling the nail bin assembly from the nail bin frame at the operation far end of the anastomat, the front end of the nail bin abuts against the abutting part.
2. The removing jig according to claim 1, wherein when the removing jig is used to remove the magazine assembly from the magazine rack at the distal operation end of the stapler, an acting force is applied to the holding structure in a direction away from the magazine rack, the holding structure is lifted upward in a direction away from the magazine rack, and the abutting portion abuts against the front end of the magazine so that the magazine assembly and the magazine rack are separated from each other.
3. The disassembly jig of claim 1, further comprising a third sidewall, wherein the third sidewall is disposed between the first sidewall and the second sidewall, two ends of the third sidewall are respectively connected to the first sidewall and the second sidewall, and the abutting portion extends from the third sidewall toward the first end of the body.
4. The removal jig of claim 3, wherein the inclination of the third side wall is greater than or equal to the inclination of the inclined surface of the front end of the staple cartridge.
5. The removing jig of claim 3, wherein the first side wall, the second side wall and the third side wall form a U-shaped structure, and an opening of the U-shaped structure is located at the first end of the body, wherein when the removing jig is used to remove the magazine assembly from the magazine rack at the distal operation end of the stapler, the front end of the magazine enters the U-shaped structure from the opening.
6. A removal jig according to claim 3, wherein the third side wall projects obliquely from the first surface of the body.
7. The disassembly jig of claim 3, wherein the third sidewall divides the body into the first region and the second region, and a distance from the third sidewall to the first end of the body is smaller than a distance from the third sidewall to a second end of the body, wherein the second end is opposite to the first end.
8. The disassembly jig of claim 1, wherein the first sidewall has a first extension portion, the second sidewall has a second extension portion, the first extension portion extends from the first sidewall toward the second sidewall, the second extension portion extends from the second sidewall toward the first sidewall; the nail bin is provided with a first gap corresponding to the first extension part, and is provided with a second gap corresponding to the second extension part; the nail bin frame is provided with a first bulge corresponding to the first notch, and a second bulge corresponding to the second notch; when the nail bin is positioned in the nail bin frame, the first bulge enters the first notch, and the second bulge enters the second notch; when the disassembling jig is assembled at the operation far end, the first extending part enters the first notch, the end part of the first extending part penetrates through the first notch and abuts against the first protrusion, the second extending part enters the second notch, and the end part of the second extending part penetrates through the second notch and abuts against the second protrusion.
9. The disassembly jig of claim 1, wherein the holding structure comprises a first extending wall, a second extending wall and a fourth side wall, the first extending wall extends from the first side wall toward the second end of the body, the second extending wall extends from the second side wall toward the second end of the body, the fourth side wall is disposed on the second end of the body, two ends of the fourth side wall are respectively connected to the first extending wall and the second extending wall, and the second end is opposite to the first end of the body.
10. The disassembly jig of claim 9, wherein the surfaces of the first extending wall and the second extending wall away from the first surface are wavy surfaces.
11. The disassembly jig of claim 1, wherein the body comprises a second surface opposite to the first surface, the holding structure is disposed on the second surface, and the holding structure is a tab structure protruding from the second surface of the body; or the surface of the first surface corresponding to the area of the holding structure is provided with an anti-slip pattern; alternatively, the surface of the first surface corresponding to the area of the holding structure is processed into a wavy surface.
12. The disassembly jig of claim 1, wherein the body comprises a second surface, the second surface is opposite to the first surface, and the anti-slip pattern is disposed on the second surface.
13. A method for disassembling a nail bin assembly is suitable for a medical anastomat and is characterized by at least comprising the following steps of disassembling;
step 1 providing a disassembly jig according to any one of claims 1 to 12;
step 2, assembling and disassembling the jig to the operation far end of the anastomat; and
step 3 lifts the holding structure of the disassembling jig along the direction far away from the nail bin frame, and the nail bin assembly at the far end of the operation is disassembled, so that the nail bin assembly and the nail bin frame are separated from each other.
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CN113491549A (en) * 2020-04-03 2021-10-12 江苏风和医疗器材股份有限公司 Assembly for a surgical instrument and surgical kit
WO2022006804A1 (en) * 2020-07-09 2022-01-13 Covidien Lp Safety feature for surgical stapling instrument
CN113440196B (en) * 2021-08-17 2022-11-11 苏州法兰克曼医疗器械有限公司 Quick replacement mechanism for nail bin of anastomat

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CN2844099Y (en) * 2005-11-17 2006-12-06 李中强 A kind of novel bottle opener
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