CN111358518A

CN111358518A - Nail bin assembly and medical anastomat

Info

Publication number: CN111358518A
Application number: CN201811595472.0A
Authority: CN
Inventors: 陈望东; 单腾; 郭毅; 叶艳平; 曹元阳
Original assignee: Touchstone International Medical Science Co Ltd
Current assignee: Touchstone International Medical Science Co Ltd; Suzhou Tianchen International Medical Technology Co Ltd
Priority date: 2018-12-25
Filing date: 2018-12-25
Publication date: 2020-07-03

Abstract

The invention discloses a nail cartridge assembly and a medical anastomat, wherein the nail cartridge assembly comprises a jaw device extending along a longitudinal axis, and the jaw device comprises a first jaw and a second jaw which can be opened/closed; wherein: the cartridge assembly further includes a olecranon member disposed at a distal end of the first jaw, the second jaw having an upper side facing the first jaw and a lower side opposite the upper side, the lower side defining a lower plane when the first and second jaws are relatively closed, the lower plane intersecting the olecranon member, and a maximum projected width of the olecranon member in the lower plane being greater than a maximum projected width of the jaw assembly in the lower plane. The nail bin assembly provided by the invention is convenient for the implantation of the forceps and the clamping of tissues.

Description

Nail bin assembly and medical anastomat

Technical Field

The invention relates to the field of medical instruments, in particular to a nail bin assembly and a 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, and the nail bin assembly comprises a nail bin connecting piece and a clamping device arranged at the far end of the nail bin connecting piece. The jaw means comprises first and second jaws which may be opened/closed, and in operations where the surgical site is relatively specific, the jaws may be difficult to reach around the tissue to be cut, such as a hard-to-reach blood vessel.

Disclosure of Invention

The invention aims to provide a nail bin assembly and a medical anastomat, which are convenient for the implantation of a forceps holder and the clamping of tissues.

To achieve one of the above objects, an embodiment of the present invention provides a cartridge assembly comprising a jaw device extending along a longitudinal axis, the jaw device including first and second openable/closable jaws;

wherein: the cartridge assembly further includes a olecranon member disposed at a distal end of the first jaw, the second jaw having an upper side facing the first jaw and a lower side opposite the upper side, the lower side defining a lower plane when the first and second jaws are relatively closed, the lower plane intersecting the olecranon member, and a maximum projected width of the olecranon member in the lower plane being greater than a maximum projected width of the jaw assembly in the lower plane.

As a further development of an embodiment of the invention, a plane perpendicular to the longitudinal axis is defined as a vertical plane, the projection of the jaw means onto the vertical plane lying entirely within the projection of the olecranon onto the vertical plane.

As a further improvement of an embodiment of the invention, the olecranon member has a hollow portion facing an engagement position of the first jaw and the second jaw when the first jaw and the second jaw are relatively closed.

As a further improvement of an embodiment of the present invention, the hollow portion is a circular hole.

As a further improvement of an embodiment of the present invention, a part of the outer periphery of the hollow portion is provided in a circular shape.

As a further improvement of an embodiment of the present invention, the olecranon member is detachably provided to the first jaw, the olecranon member includes a connecting portion connected to the first jaw, an inclined portion forming an angle with the connecting portion, and a beak portion located at a distal end of the inclined portion, and the hollow portion is provided in the inclined portion.

As a further improvement of an embodiment of the present invention, the nib is made of a flexible material.

As a further improvement of an embodiment of the present invention, a projection width of the inclined portion on the lower plane is larger than a projection width of the connecting portion on the lower plane.

As a further improvement of an embodiment of the present invention, the side edges of the connecting portion are curved.

In order to achieve one of the above objects, an embodiment of the present invention further provides a medical stapler, including an instrument body, a firing handle connected to the instrument body, and a cartridge assembly detachably connected to the instrument body, wherein the cartridge assembly includes:

a nail bin connecting piece;

a jaw arrangement located at a distal end of the cartridge coupling member and extending along a longitudinal axis, the jaw arrangement including first and second openable/closable jaws;

Compared with the prior art, the invention has the beneficial effects that: when the first jaw and the second jaw are relatively closed, the lower side of the second jaw defines a lower plane, the lower plane intersects with the olecranon, and the maximum projected width of the olecranon on the lower plane is larger than the maximum projected width of the jaw device on the lower plane. That is, the olecranon piece extends beyond the lowermost portion of the second jaw in the height direction, and the width direction of the olecranon piece is larger than the width of the jaw device, so that for some hard-to-reach operation sites, such as blood vessels, the jaws can be guided by the olecranon piece to be placed in the position of the blood vessels, and the tissue can be conveniently placed and clamped by the jaws. Furthermore, the olecranon piece is provided with a hollow part, so that the tissue has an avoiding space, and the damage of the sharp-nose part of the olecranon piece to the tissue is reduced when the first clamp and the second clamp are closed.

Drawings

FIG. 1 is a front view of a cartridge assembly;

FIG. 2 is a right side elevational view of the staple cartridge assembly of FIG. 1;

FIG. 3 is a top view of the staple cartridge assembly of FIG. 1;

FIG. 4 is a perspective view of the cartridge assembly of FIG. 1;

FIG. 5 is another perspective view of the cartridge assembly of FIG. 1;

FIG. 6 is a perspective view of a olecranon member of the staple cartridge assembly of FIG. 1;

FIG. 7 is a front view of the olecranon piece of FIG. 6;

FIG. 8 is a top view of the olecranon piece of FIG. 6;

fig. 9 is a top view of the olecranon piece of fig. 6.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.

The words used in this invention to convey position and orientation are all referenced by the operator of the instrument, with the end closer to the operator being the proximal end and the end further from the operator being the distal end.

In the various drawings of the present invention, some dimensions of structures or portions are exaggerated relative to other structures or portions for convenience 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. One embodiment of the present invention provides a medical stapler including an instrument body (not shown), a firing handle (not shown) coupled to the instrument body, and a staple cartridge assembly removably coupled to the instrument body. Specifically, the cartridge assembly is connected to the distal end of the instrument body.

As shown in fig. 1-5, the cartridge assembly includes a cartridge coupling member, a jaw device 12 located at a distal end of the cartridge coupling member and extending along a longitudinal axis 10, the jaw device 12 including an openable/closable first jaw 14 and a second jaw 16. Wherein the cartridge assembly further comprises a olecranon 18 disposed at a distal end of the first jaw 14, the second jaw 16 having an upper side 20 facing the first jaw 14 and a lower side 22 opposite the upper side 20, the lower side 22 defining a lower plane P1 when the first jaw 14 and the second jaw 16 are relatively closed, the lower plane P1 intersecting the olecranon 18, and a maximum projected width of the olecranon 18 in the lower plane P1 being greater than a maximum projected width of the jaw assembly 12 in the lower plane P1. In this way, the olecranon piece 18 is maximized in circumferential dimension to provide access to the surgical device, better guiding the stapler into the surgical device. The olecranon member 18 may be fixedly disposed at the distal end of the first jaw 14, although the olecranon member 18 may be movably disposed at the distal end of the first jaw 14.

In the preferred embodiment, when the first jaw 14 and the second jaw 16 are relatively closed, the lower plane P1 intersects the olecranon 18, and the maximum projected width of the olecranon 18 in the lower plane P1 is greater than the maximum projected width of the jaw assembly 12 in the lower plane P1. That is, the olecranon 18 extends beyond the lowermost portion of the second jaw 16 in the height direction, and the width of the widest portion of the olecranon 18 is greater than the widest portion of the jaw apparatus 12 in the width direction, so that for some less accessible surgical sites, such as blood vessels, the jaws can be guided by the olecranon to place the blood vessels in place, thereby facilitating the placement of the jaws and grasping tissue.

Further, defining a plane perpendicular to longitudinal axis 10 as vertical plane P2, the projection of vise 12 onto vertical plane P2 is entirely within the projection of the olecranon 18 onto vertical plane P2. That is, the olecranon 18 is higher than the jaw 12 formed by the first jaw 14 and the second jaw 16 not only in the height direction, but also in the width direction, both sides of the olecranon 18 are wider than the jaw 12.

The olecranon 18 has a hollow 24, and when the first jaw 14 and the second jaw 16 are relatively closed, the hollow 24 faces the engaged position of the first jaw 14 and the second jaw 16. The hollow portion 24 thus provides an escape space for tissue, reducing pressure damage to tissue from the olecranon 18 when the first jaw 14 and the second jaw 16 are closed, and particularly, damage to anastomosed tissue from the olecranon 18 when multiple successive anastomoses are required during a procedure.

Specifically, the hollow portion 24 is a circular hole. Of course, the hollow portion 24 may be provided in other shapes. In addition, part of the outer periphery of the hollow portion 24 is also provided in a circular shape. Similarly, the outer circumference of the hollow portion 24 may be partially curved instead of circular, as long as the damage to the tissue can be reduced.

Referring further to fig. 6-9, in the preferred embodiment, the olecranon member 18 is removably attached to the first jaw 14, such that the olecranon member 18 is removable from the first jaw 14. Further, the olecranon member 18 includes a coupling portion 28 coupled to the first jaw 14, a beveled portion 30 angled with respect to the coupling portion 28, and a beak portion 32 disposed at a distal end of the beveled portion 30, the hollow portion 24 being disposed on the beveled portion 30, the beak portion 32 preferably being a long flexible member. In some procedures, after the leading action of the jaw 18 on the jaw is completed, the surgeon may conveniently grasp the distal end of the jaw 18 to separate it from the jaw. The inclined portion 30 and the connecting portion 28 form an obtuse angle, the end of the inclined portion 30 is a tip portion 32, and preferably, the tip portion 32 is made of a flexible material so as to reduce damage to the tissue to be cut or the surrounding tissue.

To further reduce the closing pressure of the first jaw 14 and the second jaw 16, the projected width of the incline 30 on the lower plane P1 is greater than the projected width of the web 28 on the lower plane P1. And preferably, the sides of the connecting portion 28 are curved. That is, the connecting portion 28 is provided like a neck.

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-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. A staple cartridge assembly comprising a jaw arrangement extending along a longitudinal axis, the jaw arrangement comprising first and second openable/closable jaws;

the method is characterized in that:

the cartridge assembly further includes a olecranon member disposed at a distal end of the first jaw, the second jaw having an upper side facing the first jaw and a lower side opposite the upper side, the lower side defining a lower plane when the first and second jaws are relatively closed, the lower plane intersecting the olecranon member, and a maximum projected width of the olecranon member in the lower plane being greater than a maximum projected width of the jaw assembly in the lower plane.

2. The staple cartridge assembly of claim 1, wherein a plane defined perpendicular to said longitudinal axis is a vertical plane, and a projection of said clamping device onto said vertical plane is entirely within a projection of said olecranon onto said vertical plane.

3. The staple cartridge assembly of claim 1, wherein said olecranon member has a hollow portion that faces an engagement location of said first and second jaws when said first and second jaws are relatively closed.

4. The staple cartridge assembly of claim 3, wherein said hollow portion is a circular hole.

5. The staple cartridge assembly of claim 3, wherein a portion of the outer circumference of said hollow portion is configured as a circle.

6. The staple cartridge assembly of claim 3, wherein said olecranon member is removably disposed in said first jaw, said olecranon member including a connecting portion connected to said first jaw, a beveled portion angled with respect to said connecting portion, and a beak portion at a distal end of said beveled portion, said hollow portion being disposed in said beveled portion.

7. The staple cartridge assembly of claim 6, wherein said nose is flexible.

8. The staple cartridge assembly of claim 7, wherein a projected width of said angled portion on said lower plane is greater than a projected width of said connecting portion on said lower plane.

9. The staple cartridge assembly of claim 7, wherein said connecting portions are curved on their sides.

10. 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:

a nail bin connecting piece;

the method is characterized in that: