CN209269766U - Nail bin groupware and Medical stapler - Google Patents
Nail bin groupware and Medical stapler Download PDFInfo
- Publication number
- CN209269766U CN209269766U CN201822164311.8U CN201822164311U CN209269766U CN 209269766 U CN209269766 U CN 209269766U CN 201822164311 U CN201822164311 U CN 201822164311U CN 209269766 U CN209269766 U CN 209269766U
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- pull rod
- shell
- protrusion
- groove
- jaw
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- 238000005452 bending Methods 0.000 claims abstract description 5
- 238000010304 firing Methods 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims 2
- 230000006872 improvement Effects 0.000 description 9
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003872 anastomosis Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
It includes: nail bin connector and jaw device that the utility model, which discloses a kind of nail bin groupware and Medical stapler, the nail bin groupware, and nail bin connector includes shell and the pull rod being disposed in the housing；The pull rod is connected to the jaw device, and the pull rod can operatively be promoted the jaw device to swing relative to the shell to opposite both direction；The pull rod is equipped with groove, shell is equipped with protrusion, and it is equipped at the partial shell of the protrusion and is designed to the curved bending in direction far from the pull rod, when the pull rod is in release conditions, groove is matched with protrusion, and jaw device is in original state relative to the shell, when pull rod is pulled or is pushed, the groove is separated with protrusion, and the jaw device swings certain angle to opposite both direction respectively relative to shell.Nail bin groupware and Medical stapler provided by the utility model, so that the deformation swing angle that is smaller, not influencing jaw device of pull rod.
Description
Technical Field
The utility model relates to the field of medical equipment, concretely relates to nail storehouse subassembly and medical anastomat.
Background
The medical anastomat is a medical instrument frequently used when a surgical operation is carried out on physiological tissues such as intestinal tracts and the like, is a device used in medicine to replace the traditional manual suture, has the advantages of reliable quality, convenient use, tightness and proper tightness due to the development of modern science and technology and the improvement of manufacturing technology, particularly has the advantages of quick suture, simple and convenient operation, few side effects, few operation complications and the like, sometimes enables the tumor operation which cannot be resected in the past to be resected at a focus, is very popular and advocated by domestic and foreign clinical surgeons, and the difference of the performance of the instrument plays a vital role in the whole operation effect.
In the prior art, a linear medical stapler for minimally invasive surgery comprises an instrument body and a nail bin assembly matched with the instrument body, wherein the instrument body comprises a shell and a firing handle arranged on the shell, the nail bin assembly comprises a nail bin connecting piece and a jaw device positioned at the far end of the nail bin connecting piece, a pull rod is movably arranged in the shell, and a back pull rod or a front push-pull rod can drive the jaw device to swing towards two opposite directions relative to the shell; adopt bump and recess location structure between casing and the pull rod to fix a position the initial position of pull rod, nevertheless when jaw device carries out the yaw, because the space of stepping down between casing and the pull rod does not, the bump can make the pull rod produce the deformation, thereby leads to jaw device not to reach predetermined angle, than predetermineeing the angle and want littleer.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a nail storehouse subassembly and medical anastomat for the deformation of pull rod is less, do not influence clamping device's swing angle.
In order to realize one of the above-mentioned utility model purposes, an embodiment of the utility model provides a nail storehouse subassembly for the linear type anastomat, the nail storehouse subassembly includes:
the nail bin connecting piece comprises a shell and a pull rod which is movably arranged in the shell along the longitudinal direction;
a clamping device at a distal end of the cartridge linkage, the pull rod being coupled to the clamping device and operable to cause the clamping device to swing in opposite directions relative to the housing; wherein,
the novel telescopic pull rod is characterized in that a groove is formed in the pull rod, a convex part is arranged on the shell, the part, provided with the convex part, of the shell is designed to be in a curved shape bending towards the direction far away from the pull rod, when the pull rod is in a release state, the groove is matched and connected with the convex part, the jaw device is in an initial state relative to the shell, when the pull rod is pulled or pushed, the groove is separated from the convex part, and the jaw device swings at a certain angle relative to the shell towards two opposite directions.
As a further improvement of an embodiment of the present invention, a portion of the housing where the convex portion is provided is bent into an arc portion.
As a further improvement of an embodiment of the present invention, the convex portion has a smooth edge for facilitating entry and exit from the groove.
As a further improvement of an embodiment of the present invention, the convex portion is provided in a spherical shape.
As a further improvement of an embodiment of the present invention, a first straight line is defined by a center of the convex portion and a center of the arc portion, and the first straight line is perpendicular to the longitudinal direction.
As a further improvement of an embodiment of the present invention, the convex portion is provided at a position right in the middle of the arc portion.
As a further improvement of an embodiment of the present invention, the clamping device includes a first jaw and a second jaw that can be opened/closed, the first jaw is a connected magazine rack and a connected staple cartridge, and the second jaw is a staple anvil.
In order to realize one of the above objects of the present invention, an embodiment of the present invention further provides a medical stapler, the medical stapler includes an instrument body, a connection, a trigger handle of the instrument body, a detachable connection in a cartridge assembly of the instrument body, the cartridge assembly includes:
the nail bin connecting piece comprises a shell and a pull rod which is movably arranged in the shell along the longitudinal direction;
a clamping device at a distal end of the cartridge linkage, the pull rod being coupled to the clamping device and operable to cause the clamping device to swing in opposite directions relative to the housing; wherein,
the novel telescopic pull rod is characterized in that a groove is formed in the pull rod, a convex part is arranged on the shell, the part, provided with the convex part, of the shell is designed to be in a curved shape bending towards the direction far away from the pull rod, when the pull rod is in a release state, the groove is matched and connected with the convex part, the jaw device is in an initial state relative to the shell, when the pull rod is pulled or pushed, the groove is separated from the convex part, and the jaw device swings at a certain angle relative to the shell towards two opposite directions.
As a further improvement of an embodiment of the present invention, a portion of the housing where the convex portion is provided is bent into an arc portion.
As a further improvement of an embodiment of the present invention, the convex portion is provided in a spherical shape, a first straight line is defined by a spherical center of the convex portion and an arc center of the arc portion, and the first straight line is perpendicular to the longitudinal direction.
Compared with the prior art, the beneficial effects of the utility model reside in that: because the part of the shell provided with the convex part is designed into a curved shape which is curved in the direction far away from the pull rod, when the pull rod is pulled or pushed, the jaw device swings for a certain angle relative to the shell in two opposite directions respectively, the groove on the pull rod is separated from the convex part, and due to the existence of the curved yielding space of the shell, the curved part of the rigid shell is not deformed, the pull rod can only slightly deform without influencing the swinging angle of the jaw device, so that the jaw device can more accurately reach the preset angle.
Drawings
FIG. 1 is a front view of the cartridge assembly with the clamping devices in an initial state and the first and second jaws open relative to one another;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a top view of the staple cartridge assembly of FIG. 1;
fig. 4 is a sectional view at B-B in fig. 3.
FIG. 5 is an enlarged view of a portion of FIG. 4 at C;
FIG. 6 is a front view of the cartridge assembly with the pull rod pulled, the clamping device swung at an angle, and the first and second jaws open to one another;
FIG. 7 is a top view of the staple cartridge assembly of FIG. 6;
FIG. 8 is a cross-sectional view taken at D-D of FIG. 7;
fig. 9 is a partially enlarged schematic view of fig. 8 at E.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not intended to limit the present invention, and structural, methodical, or functional changes that may be made by one of ordinary skill in the art based on these embodiments are all included in the scope of the present invention.
The words expressing the position and direction described in the utility model are all referred by the operator of the instrument, the end close to the operator is the near end, and the end far away from the operator is the far end.
In the various drawings of the present invention, certain dimensions of structures or portions may be exaggerated relative to other structures or portions for ease of illustration, and thus, are used only to illustrate the basic structure of the subject matter of the present invention.
Terms such as "upper," "above," "lower," "below," and the like, used herein to denote relative spatial positions, are used for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In the embodiment of the present invention, the medical stapler of the present invention is specifically explained by taking a cavity mirror surgical cutting stapler as an example, but it should be noted that the technical spirit involved in the embodiment described below may be alternatively utilized to other types of staplers.
The medical stapler is used for applying a plurality of staples to physiological tissues of a human body while correspondingly cutting the physiological tissues. As shown in fig. 1, an embodiment of the present invention provides a medical stapler, and particularly, the medical stapler is a linear stapler. The medical stapler includes an instrument body (not shown), a firing handle (not shown) attached to the instrument body, and a cartridge assembly 10 removably attached to the instrument body. Specifically, the firing handle is pivotally attached to the instrument body by a pivot shaft and the cartridge assembly 10 is attached to the distal end of the instrument body.
A push rod (not shown) is arranged in the instrument body, and the push rod can move relative to the shell of the instrument body under the action of the firing handle.
As seen in fig. 2-9, the cartridge assembly 10 includes a cartridge coupling member 12 and a clamping device 14. The nail bin connector 12 comprises a connecting shell 19, a shell 16 and a pull rod 18 which is movably arranged in the shell 16 along the longitudinal direction, wherein the shell 16 and the pull rod 18 are positioned in the connecting shell 19; the jaw assembly 14 is located at a distal end of the cartridge coupling member 12, a pull rod 18 is connected to the jaw assembly 14, and the pull rod 18 is operable to cause the jaw assembly 14 to swing in opposite directions relative to the housing 16. By pulling or pushing the pull rod 18, the clamping device 14 can be rotated in different directions and at certain angles relative to the cartridge connecting member 12 to adapt to the multi-angle cutting anastomosis operation.
Specifically, the pull rod 18 is provided with a groove 20, the housing 16 is provided with a protrusion 22, and a portion of the housing 16 provided with the protrusion 22 is designed to be curved in a direction away from the pull rod 18, when the pull rod 18 is in a release state, the groove 20 is matched with the protrusion 22, the vise 14 is in an initial state relative to the housing 16, and at this time, the vise 14 does not swing relative to the housing 16. When the pull rod 18 is pulled or pushed, the groove 20 is disengaged from the protrusion 22, and the vise 14 swings in opposite directions at an angle relative to the housing 16. As shown in fig. 6-7, when the pull rod 18 is pulled rearwardly, i.e., proximally, the pull rod 18 moves rearwardly to cause the vise 14 to swing in one direction.
In the preferred embodiment, when the vise device 14 is in the initial state, the portion of the housing 16 where the protrusion 22 is located is designed to be pre-deformed and bent, and the housing 16 is rigid and will not deform, and the protrusion 22 on the housing 16 falls into the groove 20 on the pull rod 18, so as to position the pull rod 18 in the initial state. When the pull rod 18 is pulled or pushed, the clamping device 14 swings a certain angle relative to the housing 16 in two opposite directions, the groove 20 on the pull rod 18 is separated from the protrusion 22, and due to the existence of the curved abdicating space of the housing 16, the rigid curved portion of the housing 16 is not deformed, and when the protrusion 22 and the groove 20 are separated from each other, the protrusion 22 is arranged in the curved abdicating space, even if the curved portion of the housing 16 is rigid, a large resisting force cannot be applied to the pull rod 18, so that the pull rod 18 is only slightly deformed, the swing angle of the clamping device 14 is not affected, and the clamping device 14 can more accurately reach the preset angle.
Preferably, the portion of the housing 16 where the protrusion 22 is located is bent into an arc-shaped portion 24, and the arc center of the arc-shaped portion 24 and the protrusion 22 are located on the same side of the arc-shaped portion 24, so that the arc-shaped portion 24 can provide a certain space for the protrusion 22 to give way. Of course, the portion of the housing 16 where the protrusion 22 is located may be bent into other shapes as long as the protrusion 22 is provided with a certain space for the protrusion when the pull rod 18 is moved.
The projections 22 have smooth edges that facilitate entry into and exit from the recesses 20. In addition, the cross-section of the groove 20 is provided in a circular shape. When the pull rod 18 is pulled or pushed, the protrusion 22 can be removed from the groove 20 with a small force, which is more convenient for operation. In addition, the end of the groove 20 into which the protrusion 22 enters or exits is provided with a guiding curved surface, so that the protrusion 22 can more easily enter or exit the groove 20.
Further, the convex portion 22 is provided in a spherical shape. The spherical center of the convex portion 22 and the arc center of the arc portion 24 define a first line, which is perpendicular to the longitudinal direction. That is, the convex portion 22 is provided at the right middle position of the arc portion 24. With such an arrangement, under the condition that the size of the convex portion 22 is fixed, and under the condition that the radian and the radius of the arc-shaped portion 24 are fixed, the yielding space provided by the arc-shaped portion 24 for the convex portion 22 is the largest.
The tie bar 18 is provided in a thin plate shape extending in the longitudinal direction, the tie bar 18 has a first surface and a second surface opposite to the first surface, and the groove 20 is provided as a through groove extending from the first surface to the second surface. In the present embodiment, the groove 20 is a circular through groove, and the outer circumference of the junction of the convex portion 22 and the arc portion 24 is larger than the inner diameter of the groove 20.
In the preferred embodiment, the jaw device 14 includes a first jaw 26 and a second jaw 28 that can be opened/closed, the first jaw 26 being a connected cartridge carrier 30 and a cartridge 32, and the second jaw 28 being an anvil.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. A staple cartridge assembly for a linear stapler, said staple cartridge assembly comprising:
the nail bin connecting piece comprises a shell and a pull rod which is movably arranged in the shell along the longitudinal direction;
a clamping device at a distal end of the cartridge linkage, the pull rod being coupled to the clamping device and operable to cause the clamping device to swing in opposite directions relative to the housing; it is characterized in that the preparation method is characterized in that,
the novel telescopic pull rod is characterized in that a groove is formed in the pull rod, a convex part is arranged on the shell, the part, provided with the convex part, of the shell is designed to be in a curved shape bending towards the direction far away from the pull rod, when the pull rod is in a release state, the groove is matched and connected with the convex part, the jaw device is in an initial state relative to the shell, when the pull rod is pulled or pushed, the groove is separated from the convex part, and the jaw device swings at a certain angle relative to the shell towards two opposite directions.
2. The staple cartridge assembly of claim 1, wherein the portion of the housing where said protrusion is located is curved into an arc.
3. The staple cartridge assembly of claim 2, wherein said protrusion has a smooth edge that facilitates entry and exit from said recess.
4. The staple cartridge assembly of claim 2, wherein said protrusions are disposed in a spherical shape.
5. The staple cartridge assembly of claim 4, wherein a spherical center of said protrusion and an arc center of said arcuate portion define a first line, said first line being perpendicular to said lengthwise direction.
6. The staple cartridge assembly of claim 4, wherein said protrusion is disposed at a midpoint of said arcuate portion.
7. The staple cartridge assembly of claim 1, wherein said jaw means comprises first and second openable/closable jaws, said first jaw being an attached cartridge carrier and staple cartridge, said second jaw being an anvil.
8. A medical stapler, the medical stapler includes an instrument body, a firing handle connected with the instrument body, a cartridge component detachably connected with the instrument body, the cartridge component includes:
the nail bin connecting piece comprises a shell and a pull rod which is movably arranged in the shell along the longitudinal direction;
a clamping device at a distal end of the cartridge linkage, the pull rod being coupled to the clamping device and operable to cause the clamping device to swing in opposite directions relative to the housing; it is characterized in that the preparation method is characterized in that,
the novel telescopic pull rod is characterized in that a groove is formed in the pull rod, a convex part is arranged on the shell, the part, provided with the convex part, of the shell is designed to be in a curved shape bending towards the direction far away from the pull rod, when the pull rod is in a release state, the groove is matched and connected with the convex part, the jaw device is in an initial state relative to the shell, when the pull rod is pulled or pushed, the groove is separated from the convex part, and the jaw device swings at a certain angle relative to the shell towards two opposite directions.
9. The medical stapler of claim 8, wherein the portion of the housing where the protrusion is provided is curved into an arc.
10. The medical stapler of claim 9, wherein the protrusion is configured as a sphere, a center of the sphere of the protrusion and a center of the arc define a first line, and the first line is perpendicular to the longitudinal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822164311.8U CN209269766U (en) | 2018-12-21 | 2018-12-21 | Nail bin groupware and Medical stapler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822164311.8U CN209269766U (en) | 2018-12-21 | 2018-12-21 | Nail bin groupware and Medical stapler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209269766U true CN209269766U (en) | 2019-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822164311.8U Active CN209269766U (en) | 2018-12-21 | 2018-12-21 | Nail bin groupware and Medical stapler |
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| Country | Link |
|---|---|
| CN (1) | CN209269766U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110477984A (en) * | 2019-09-09 | 2019-11-22 | 舒拓 | Flexible shaking device for stapler |
-
2018
- 2018-12-21 CN CN201822164311.8U patent/CN209269766U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110477984A (en) * | 2019-09-09 | 2019-11-22 | 舒拓 | Flexible shaking device for stapler |
| CN110477984B (en) * | 2019-09-09 | 2024-05-17 | 舒拓 | Flexible swing head device for anastomat |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215021 No. 278 Dongping Street, Suzhou Industrial Park, Jiangsu Province Patentee after: Tianchen International Medical Technology Co., Ltd Address before: 215021 No. 278 Dongping Street, Dushu Lake Higher Education District, Suzhou Industrial Park, Jiangsu Province Patentee before: TOUCHSTONE INTERNATIONAL MEDICAL SCIENCE Co.,Ltd. |