CN217447895U

CN217447895U - Anastomat rotating shaft structure and anastomat

Info

Publication number: CN217447895U
Application number: CN202221176745.XU
Authority: CN
Inventors: 黄晓俊; 蔡从利; 曾建辉; 宋威
Original assignee: Eglite Wuhan Technology Co ltd
Current assignee: Eglite Wuhan Technology Co ltd
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2022-09-20
Anticipated expiration: 2032-05-13

Abstract

The utility model provides an anastomat pivot structure and anastomat relates to anastomat technical field. This anastomat pivot structure is including supporting nail pole, nail storehouse pole, pressure riveting round pin axle and cutting knife, supports the nail pole and is provided with first round pin shaft hole, first sliding tray and spacing inclined plane. The nail bin rod is provided with a second pin shaft hole and a second sliding groove. Through the interference fit of the press riveting pin shaft and the second pin shaft hole of the nail bin rod, the press riveting pin shaft is in clearance fit with the first pin shaft hole of the nail supporting rod, so that the nail supporting rod can rotate relative to the press riveting pin shaft, and the operation convenience is improved. And, set up in first sliding tray and second sliding tray respectively slidable through the both sides border relative with the cutting knife, spacing inclined plane is used for supporting the cutting knife of butt under the nail pole for nail storehouse pole pivoted circumstances, can make the cutting knife rotatory along with supporting the rotation of nail pole, avoids the cutting knife to produce the interference to other parts at the removal in-process.

Description

Anastomat rotating shaft structure and anastomat

Technical Field

The utility model relates to an anastomat technical field particularly, relates to an anastomat pivot structure and anastomat.

Background

The anastomat is a surgical instrument for replacing the traditional manual suture in the surgical operation, is simple and convenient to operate and reliable in suture, has few side effects and surgical complications, and has the main working principle that the cutting knife is used for cutting off tissues and simultaneously suturing the tissues by utilizing suture nails, and the stapler is similar to a stapler. According to different application ranges, the main components of the anastomat can be divided into a skin anastomat, a circular digestive tract anastomat, a rectal anastomat, a circular hemorrhoid anastomat, a circumcision anastomat, a blood vessel anastomat, a hernia anastomat, a lung cutting stapler and the like.

The soft vein group formed by the expansion and the bending of the submucosal and the sub-cutaneous vein plexus of the rectum is called hemorrhoid, which is also called hemorrhoid, hemorrhoids, hemorrhoidal disease, hemorrhoid disease, etc. The hemorrhoids include internal hemorrhoids, external hemorrhoids and mixed hemorrhoids, and are a chronic disease of one or more soft venous masses formed by varicose of venous plexuses at the bottom of anorectum and anal mucosa.

At present, focus tissues are mainly removed and medicine treatment is matched for treating hemorrhoids, upper mucosa is generally removed for removing hemorrhoids, normal upper mucosa of hemorrhoids is removed, the hemorrhoid tissues are lifted and blood supply is blocked, wounds caused by an anastomat used in the circular cutting method are large, the wounds are slow to heal, sequela is easy to remain, anus is easy to narrow, and finally defecation is unsmooth.

The jaw type anastomat is small in size, convenient to hold, simple to operate and capable of effectively solving the problems, in the prior art, the rotating part of the anastomat is poor in operation hand feeling due to poor rotation, the cutting knife is prone to interference, and operation time is long.

In view of this, the utility model is especially provided.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide an anastomat rotating shaft structure to solve the above technical problems.

The second objective of the present invention is to provide an anastomat including the above-mentioned rotating shaft structure of anastomat.

The utility model discloses can realize like this:

in a first aspect, the utility model provides a rotating shaft structure of an anastomat, which comprises a nail abutting rod, a nail bin rod, a rivet pressing pin shaft and a cutting knife;

the nail pushing rod is provided with a first pin shaft hole, a first sliding groove and a limiting inclined plane;

the nail bin rod is provided with a second pin shaft hole and a second sliding groove, the second pin shaft hole and the first pin shaft hole are correspondingly arranged, and the second sliding groove and the first sliding groove are oppositely arranged;

one end of the press riveting pin shaft is used for penetrating through the first pin shaft hole and matching with the second pin shaft hole, the press riveting pin shaft is in clearance fit with the first pin shaft hole, and the press riveting pin shaft is in interference fit with the second pin shaft hole;

the two opposite side edges of the cutting knife are respectively arranged in the first sliding groove and the second sliding groove in a sliding manner;

the limiting inclined plane is used for abutting against the cutting knife under the condition that the nail abutting rod rotates relative to the nail bin rod, so that the cutting knife rotates along with the rotation of the nail abutting rod.

In an alternative embodiment, the first pin shaft bore is a stepped bore.

In an alternative embodiment, the bore wall of the first pin bore includes a first bore section, a connecting bore section, and a second bore section connected in series;

the first hole section is connected to one end, far away from the second pin shaft hole, of the second hole section;

the first hole section and the second hole section are coaxially arranged along the axis of the press riveting pin shaft;

the connecting hole section is vertical to the axis of the press riveting pin shaft;

the aperture of the first hole section is larger than that of the second hole section;

and the press riveting pin shaft is in clearance fit with the second hole section.

In an optional embodiment, the press riveting pin comprises a pin body and a pin cap arranged at one end of the pin body;

one end of the pin shaft body, which is far away from the pin shaft cap, is used for sequentially passing through the first hole section and the second hole section to be matched with the second pin shaft hole, the pin shaft body is in clearance fit with the first pin shaft hole, and the pin shaft body is in interference fit with the second pin shaft hole;

the nail pushing rod and the nail bin rod are rotationally connected through the pin shaft body;

the end face of one end, close to the pin shaft body, of the pin shaft cap abuts against the connecting hole section, and the pin shaft cap is accommodated in the first hole section.

In an optional embodiment, the nail pushing rod is provided with a limiting block protruding relative to the bottom wall of the first sliding groove, and the limiting inclined plane is a side surface of the limiting block facing the first sliding groove.

In an alternative embodiment, the first pin shaft hole is opened on the stopper.

In an optional embodiment, the nail bin rod is provided with a rotating groove, and the limiting block is rotatably arranged in the rotating groove.

In an alternative embodiment, the second pin shaft hole and the second sliding groove are spaced apart from each other at the bottom wall of the rotating groove.

In an alternative embodiment, the second sliding channel extends along the length of the cartridge rod.

In a second aspect, the present invention provides an anastomat, including the rotating shaft structure of the anastomat of any one of the preceding embodiments.

The beneficial effects of the utility model include:

the utility model provides an anastomat pivot structure is through pressing the second round pin shaft hole interference fit of riveting round pin axle and nail storehouse pole, presses the first round pin shaft hole clearance fit of riveting round pin axle and support the nail pole to make to support the nail pole rotatable for pressing the riveting round pin axle, improve convenient operation nature. And, through set up the relative both sides border of cutting knife in first sliding tray and second sliding tray respectively slidable, spacing inclined plane is used for supporting the cutting knife under the circumstances that supports the nail pole for nail storehouse pole pivoted, can make the cutting knife rotate along with supporting the rotation of nail pole, avoids the cutting knife to produce the interference to other parts at the removal in-process, and it is long effectively to reduce the operation of operation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of a rotating shaft structure of the stapler according to the embodiment;

FIG. 2 is a schematic view of the press-riveting pin shaft in cooperation with the nail pushing rod and the nail bin rod;

FIG. 3 is a schematic view of the nail-pushing rod of FIG. 1 from another perspective;

FIG. 4 is a schematic view of the staple cartridge lever of FIG. 1 from another perspective.

Icon: 100-anastomat rotating shaft structure; 10-nail-resisting rod; 11-a first pin shaft hole; 111-a first bore section; 112-connecting the pore section; 113-a second bore section; 12-a first sliding groove; 13-a limit inclined plane; 14-a limiting block; 20-a cartridge rod; 21-a second pin shaft hole; 22-a second sliding groove; 23-a rotating trough; 30-riveting a pin shaft; 31-pin shaft body; 32-pintle cap; 40-a cutting knife.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as a limitation of the present invention. Furthermore, the appearances of the terms "first," "second," "third," and the like, if any, are only used to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1 to 4, the present embodiment provides a rotating shaft structure 100 of a stapler, which includes a nail pushing rod 10, a nail bin rod 20, a rivet pressing pin shaft 30 and a cutting knife 40.

The nail pushing rod 10 is provided with a first pin shaft hole 11, a first sliding groove 12 and a limit inclined plane 13.

The magazine lever 20 is provided with a second pin shaft hole 21 and a second slide groove 22, the second pin shaft hole 21 and the first pin shaft hole 11 are provided correspondingly, and the second slide groove 22 and the first slide groove 12 are provided oppositely.

One end of the press riveting pin shaft 30 is used for penetrating through the first pin shaft hole 11 and matching with the second pin shaft hole 21, the press riveting pin shaft 30 is in clearance fit with the first pin shaft hole 11, the press riveting pin shaft 30 is in interference fit with the second pin shaft hole 21, and the press riveting pin shaft 30 is used for enabling the nail pushing rod 10 and the nail bin rod 20 to rotate relatively. The nail pushing rod 10 is rotatably connected with the nail bin rod 20 through a rivet pressing pin shaft 30.

The press riveting pin shaft 30 is in interference fit with the second pin shaft hole 21 of the nail bin rod 20, and the press riveting pin shaft 30 is in clearance fit with the first pin shaft hole 11 of the nail abutting rod 10, so that the nail abutting rod 10 can rotate relative to the press riveting pin shaft 30, and the operation convenience is improved.

The opposite side edges of the cutting blade 40 are slidably disposed in the first sliding groove 12 and the second sliding groove 22, respectively, so as to facilitate the movement of the cutting blade 40.

The limit inclined plane 13 is used for abutting against the cutting knife 40 under the condition that the nail abutting rod 10 rotates relative to the nail bin rod 20, so that the cutting knife 40 rotates along with the rotation of the nail abutting rod 10. Based on this, cutting knife 40 is under the limiting displacement who supports nail pole 10's spacing inclined plane 13, and is rotatory along with supporting the rotation of nail pole 10, can avoid cutting knife 40 to produce the interference to other parts at the removal in-process to it is long when effectively reducing the operation of operation.

In operation, the cutting knife 40 is accommodated between the nail pushing rod 10 and the nail bin rod 20, so that the stapler can be used as a freely rotatable jaw-type stapler, and the stapler can cut off an operation part through the back and forth movement of the cutting knife 40 while being clamped. In order to facilitate the operation of the cutting blade 40, the sliding direction of the cutting blade 40 needs to be limited, for example, the cutting blade 40 is limited to move only in the forward and backward directions of the nail abutting rod 10 (or the nail bin rod 20), so as to complete the cutting action.

In this embodiment, the nail pushing rod 10 and the nail bin rod 20 can be made of metal, so as to have high strength.

In this embodiment, the first pin shaft hole 11 is a stepped hole, so that the rivet pressing pin shaft 30 can be better matched with the first pin shaft hole 11, and the rotational connection between the nail pushing rod 10 and the nail bin rod 20 is realized.

Referring to fig. 2, the hole wall of the first pin hole 11 includes a first hole section 111, a connecting hole section 112 and a second hole section 113 connected in sequence.

The first bore section 111 is connected to an end of the second bore section 113 remote from the second pin shaft bore 21, i.e., the first bore section 111 is remote from the second pin shaft bore 21 relative to the second bore section 113.

The first hole section 111 and the second hole section 113 are coaxially arranged along the axis of the squeeze rivet pin shaft 30.

The connecting hole section 112 is perpendicular to the axis of the press-riveting pin shaft 30.

The first bore section 111 has a larger bore diameter than the second bore section 113.

The press-riveting pin shaft 30 is in clearance fit with the second hole section 113.

Meanwhile, in order to be matched with the first pin hole 11, the press-riveting pin 30 includes a pin body 31 and a pin cap 32 disposed at one end of the pin body 31.

The one end that the round pin axle body 31 kept away from round pin axle cap 32 is used for passing first hole section 111 and second hole section 113 in proper order and with the cooperation of second round pin axle hole 21, round pin axle body 31 and first round pin axle hole 11 clearance fit, round pin axle body 31 and second round pin axle hole 21 interference fit.

The nail pushing rod 10 and the nail bin rod 20 are rotatably connected through a pin shaft body 31.

The end surface of the pin shaft cap 32 near one end of the pin shaft body 31 abuts against the connection hole section 112, and the pin shaft cap 32 is accommodated in the first hole section 111.

Through setting up first round pin axle hole 11 and pressure rivet round pin axle 30 according to above-mentioned mode, after pressure rivet round pin axle 30 has installed, can make pressure rivet round pin axle 30 inlay in first round pin axle hole 11 and second round pin axle hole 21, owing to pressure rivet round pin axle 30 and first round pin axle hole 11 clearance fit, thereby make to support that the nail pole 10 is rotatable around pressure rivet round pin axle 30.

In this embodiment, the nail pushing rod 10 is provided with a limit block 14 protruding from the bottom wall of the first sliding groove 12, and the limit inclined plane 13 is a side surface of the limit block 14 facing the first sliding groove 12.

The limiting block 14 is arranged convexly, so that the limiting effect on the cutting knife 40 is more convenient. Preferably, the first pin shaft hole 11 can be opened on the limiting block 14 to improve the compactness of the whole anastomat rotating shaft structure.

Further, the magazine rod 20 is provided with a rotating groove 23, and the stopper 14 is rotatably disposed in the rotating groove 23. The second pin hole 21 and the second slide groove 22 are provided at the bottom wall of the rotation groove 23 with an interval therebetween. With the above arrangement, the stopper 14 can be accommodated conveniently and the overall structure can be optimized.

In some embodiments, the second sliding slot 22 extends along the length of the cartridge rod 20 to better limit the back and forth movement of the cutting knife 40. During operation, the first sliding groove 12 and the second sliding groove 22 cooperate to clamp the cutting knife 40 and limit the cutting knife to move up and down only along the front and back directions based on the limiting function of the two sliding grooves.

Through the arrangement, the rotation of the nail propping rod 10 and the nail bin rod 20 can be realized only through the pressing rivet pin shaft 30, the position of the cutting knife 40 is reserved, the cutting knife 40 is convenient to operate through the design of the first sliding groove 12 and the second sliding groove 22, the cutting action is convenient to complete when the surgical site is clamped, and the nail propping stapler is particularly suitable for a clamp-type hemorrhoid stapler.

In addition, the present embodiment further provides an anastomat (not shown) including the anastomat rotating shaft structure 100.

In addition, the stapler may further include a handle connected to the nail pushing rod 10 and the cartridge rod 20, and an operator operates the handle to rotate the nail pushing rod 10 and the cartridge rod 20. Further, a handle may be disposed at the rear end of the cutting knife 40, so that an operator can operate the cutting knife 40 conveniently.

It should be noted that the stapler may further include other components according to the prior art, and will not be described in detail herein.

To sum up, the utility model discloses a press the second round pin shaft hole 21 interference fit of riveting round pin axle 30 and nail storehouse pole 20, press riveting round pin axle 30 and support 11 clearance fit in the first round pin shaft hole of nail pole 10 to make to support nail pole 10 rotatable for pressing riveting round pin axle 30, improve convenient operation nature. Moreover, the opposite two side edges of the cutting knife 40 are respectively slidably arranged in the first sliding groove 12 and the second sliding groove 22, the limit inclined plane 13 is used for abutting against the cutting knife 40 under the condition that the nail abutting rod 10 rotates relative to the nail bin rod 20, the cutting knife 40 can rotate along with the rotation of the nail abutting rod 10, the interference of the cutting knife 40 to other parts in the moving process is avoided, the cutting can be completed through the cutting knife 40 when the jaw type anastomat is clamped, and the operation is convenient to complete.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotating shaft structure of an anastomat is characterized by comprising a nail abutting rod, a nail bin rod, a rivet pressing pin shaft and a cutting knife;

2. The stapler shaft structure according to claim 1, wherein the first pin shaft hole is a stepped hole.

3. The rotary shaft structure of the anastomat as claimed in claim 2, wherein the hole wall of the first pin shaft hole comprises a first hole section, a connecting hole section and a second hole section which are connected in sequence;

the connecting hole section is perpendicular to the axis of the press riveting pin shaft;

the pore diameter of the first pore section is larger than that of the second pore section;

4. The rotating shaft structure of the anastomat as claimed in claim 3, wherein the press riveting pin shaft comprises a pin shaft body and a pin shaft cap arranged at one end of the pin shaft body;

one end of the pin shaft body, which is far away from the pin shaft cap, is used for sequentially penetrating through the first hole section and the second hole section to be matched with the second pin shaft hole, the pin shaft body is in clearance fit with the first pin shaft hole, and the pin shaft body is in interference fit with the second pin shaft hole;

the end face, close to the pin shaft body, of one end of the pin shaft cap abuts against the connecting hole section, and the pin shaft cap is contained in the first hole section.

5. The rotary shaft structure of the anastomat as claimed in any one of claims 1 to 4, wherein the nail pushing rod is provided with a limiting block protruding relative to the bottom wall of the first sliding groove, and the limiting inclined plane is a side surface of the limiting block facing the first sliding groove.

6. The rotating shaft structure of the anastomat as claimed in claim 5, wherein the first pin shaft hole is opened on the limiting block.

7. The rotating shaft structure of the anastomat as claimed in claim 5, wherein the nail bin rod is provided with a rotating groove, and the limiting block is rotatably arranged in the rotating groove.

8. The rotary shaft structure of the anastomat of claim 7, wherein the second pin shaft hole and the second sliding groove are spaced apart from each other at the bottom wall of the rotary groove.

9. The stapler shaft structure according to claim 1, wherein the second sliding groove extends along a length of the cartridge lever.

10. An anastomat, which comprises the anastomat rotating shaft structure according to any one of claims 1 to 9.