CN217645274U - Nail anvil assembly with improved nail groove and stitching instrument thereof - Google Patents

Abstract

The utility model belongs to the technical field of the medical instrument technique and specifically relates to a nail anvil subassembly and stitching instrument with improved generation nail groove is related to, including nail anvil subassembly and the nail groove of setting on nail anvil subassembly, the nail groove includes two relative inner concave parts that set up, two be provided with outside convex arch between the inner concave part, inner concave part has nail foot guide face and nail foot profiled surface, nail foot profiled surface is located between nail foot guide face and the arch, the circular arc is excessive between nail foot guide face and the nail foot profiled surface, nail foot guide face is used for the nail foot to nail foot profiled surface direction, and during the use, the nail inslot has cancelled supplementary nail profiled surface, has enlarged the area of nail foot guide face, has just also increased the probability that sews up the nail foot and fall on nail foot guide face, has promoted the shaping rate of nail greatly, has avoided the nail foot in current nail groove to lead to sew up the meeting skew to inaccurate problem for a short time.

Description

Nail anvil assembly with improved nail groove and stitching instrument thereof

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a nail anvil component with an improved nail groove and a stitching instrument thereof.

Background

With the continuous development of medical treatment in China, the suture operation is carried out by utilizing a suture instrument, and the suture instrument is widely popularized and applied in large and medium hospitals in China; the defects of suture mouth deformation and suture mouth stenosis caused by manual suture can be overcome by using an instrument for suture, the success rate of suture operation is improved, the operation time is saved, particularly, the advantages of the suture operation are particularly remarkable at the low position of the rectum and the high position of the esophagus which are not suitable for manual suture, the suture operation is more and more focused by surgeons, and the technology has high clinical application value.

The stapler is similar in principle to a stapler, in that the staples are passed through the tissue to be stapled and bent into a "B" shape by guide forming slots in the anvil assembly. As shown in fig. 1-4, the traditional funnel-shaped nail groove mainly comprises a nail foot guiding surface, a nail forming guiding surface and an auxiliary nail forming surface, wherein the nail foot guiding surface is small, the area of the auxiliary nail forming surface is large, once the tissue is slightly deviated, the nail foot of the suturing nail is propped against the auxiliary nail forming surface, the poor forming phenomenon of the suturing nail is likely to occur, at present, the nail groove of most nail anvil assemblies is in a funnel shape and has a similar W-shaped section, so that the nail foot guiding surface of the nail groove is reduced, in the suturing and cutting processes of the suturing device, the tissue is likely to slide forwards or on two sides, the nail foot of the suturing nail is also deviated along with the nail groove, the nail groove cannot be completely aligned, the suturing and forming effect is influenced, and the suturing effect is not ideal.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the problem that the deviation and the misalignment of the stitching nail caused by the small foot guiding surface of the existing nail groove, the nail anvil assembly with the improved nail groove and the stitching instrument thereof are provided.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a nail anvil subassembly with improved generation nail groove, includes nail anvil subassembly and sets up the nail groove on nail anvil subassembly, the nail groove includes the interior recess of two relative settings, two be provided with outside convex arch between the interior recess, interior recess has nail foot guide face and nail foot profiled surface, nail foot profiled surface is located between nail foot guide face and the arch, the circular arc is excessive between nail foot guide face and the nail foot profiled surface, nail foot guide face is used for the nail foot to nail foot profiled surface direction, interval between the interior recess both sides is reduced to nail foot profiled surface by the nail foot guide, and the nail foot is crooked to nail foot profiled surface direction through the nail foot guide, aligns and guide to the arch both sides nail foot by nail foot profiled surface again to make the nail foot inwards bend and the shaping. Compare with prior art, this scheme nail inslot has cancelled supplementary nail shaping face, has enlarged the area that the nail foot led the face, has just also increased and has sewed up the nail foot and fall on the probability that the nail foot led the face, has promoted the shaping rate of nail greatly.

Further, the nail foot guiding surface is a first arc surface.

Further, the nail foot forming surface is a second cambered surface.

Further, a first transition surface is arranged between the concave part and the protrusion, and the first transition surface is a third cambered surface.

Furthermore, the nail anvil component is provided with a plurality of groups of nail grooves, and every two adjacent groups of nail grooves are arranged in a staggered mode.

The utility model discloses a concrete implementation mode specifically does: a stapler is provided with the nail anvil assembly with the improved nail groove.

The beneficial effects of the utility model are that: the utility model discloses nail anvil subassembly and stitching instrument with improved generation nail groove when using, the nail inslot has cancelled supplementary nail shaping face, has enlarged the area of nail foot guide face, has just also increased and has stitched the nail foot and fall on the probability of nail foot guide face, has promoted the shaping rate of nail greatly, and the nail foot guide face of having avoided current nail groove leads to stitching the nail little and can squint the inaccurate problem of nail.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic view of a prior art anvil assembly;

FIG. 2 is a schematic view of another anvil assembly of the prior art;

FIG. 3 is a cross-sectional schematic view of a prior art nail groove;

FIG. 4 is a schematic view of a prior art nail groove configuration;

fig. 5 is a schematic structural view of a nail anvil assembly of the present invention;

FIG. 6 is a schematic view of another anvil assembly of the present invention;

FIG. 7 is a schematic structural view of the nail groove of the present invention;

FIG. 8 is a first state diagram of the present invention in use;

FIG. 9 is a second state diagram of the present invention in use;

fig. 10 is a state diagram three of the present invention in use.

In the figure: 1. the nail anvil component comprises a nail anvil component 2, a nail groove 201, an inner concave part 2011, a nail foot guide surface 2012, a nail foot forming surface 202, a bulge 203, a first transition surface 204 and an auxiliary nail forming surface.

Detailed Description

The utility model discloses the following embodiment of combining does further detailing:

the utility model discloses not confine the following embodiment to, general technical personnel in this field can adopt other multiple embodiment to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed 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 by those of ordinary skill in the art through specific situations.

As shown in fig. 5 and 7, an anvil component with an improved nail groove comprises an anvil component 1 and a nail groove 2 arranged on the anvil component 1, wherein the nail groove 2 comprises two concave parts 201 which are oppositely arranged, a protrusion 202 which protrudes outwards is arranged between the concave parts 201, the concave parts 201 comprise a nail foot guide surface 2011 and a nail foot forming surface 2012, the nail foot forming surface 2012 is positioned between the nail foot guide surface 2011 and the protrusion 202, an arc between the nail foot guide surface 2011 and the nail foot forming surface 2012 is excessive, the nail foot guide surface 2011 is used for guiding a nail foot to the nail foot forming surface 2012, a distance between two sides of the concave parts 201 is gradually reduced from the nail foot guide surface 2011 to the nail foot forming surface 2012, the nail foot is bent towards the nail foot forming surface 2012 by the nail foot guide surface 2011, and then the nail feet on two sides are aligned and guided to the protrusion 202 by the nail foot forming surface, so that the nail feet are bent inwards and formed.

The toe guide surface 2011 is a first arc surface. The toe guide surface 2011 may be a slope.

The nail foot forming surface 2012 is a second cambered surface. The leg forming surface 2012 may also be beveled.

A first transition surface 203 is arranged between the concave part 201 and the protrusion 202, and the first transition surface 203 is a third arc surface.

The nail anvil component 1 is provided with a plurality of groups of nail grooves 2, and the adjacent two groups of nail grooves 2 are arranged in a staggered manner.

When the nail anvil assembly with the improved nail groove and the stapler thereof are used, as shown in fig. 8, fig. 9 and fig. 10, the nail feet on two sides of the suturing nail are respectively contacted with the nail foot guide surface 2011 of the concave part 201 on two sides of the nail groove 2, along with the downward pressing of the suturing needle, the nail foot guide surface 2011 bends the nail feet and guides the nail foot to the nail foot forming surface 2012, meanwhile, the nail foot guide surface 2011 guides the nail feet with the dislocation on two sides to the nail foot forming surface 2012, the nail foot forming surface 2012 centralizes and aligns the nail feet with the dislocation on two sides and bends towards the direction of the bulge 202, the stable and reliable forming of the suturing needle is ensured, the distance between two sides of the concave part 201 is gradually reduced from the nail foot guide surface 2011 to the nail foot forming surface 2012, the area of the nail foot guide surface 2011 is increased, and the forming rate of the suturing needle is improved.

Example 2

Embodiment 2 is another structure of a nail anvil assembly, which specifically comprises: as shown in fig. 6, embodiment 2 differs from embodiment 1 in that embodiment 1 utilizes one configuration of anvil assembly and embodiment 2 utilizes another anvil assembly, both of which are configured differently but utilize the same configuration of staple channel 2.

Example 3

Embodiment 3 is a specific implementation manner of embodiment 1 or embodiment 2, and specifically includes: a stapler is provided with the nail anvil assembly with the improved nail groove. Improve the operation efficiency of the stitching instrument and ensure the stitching nail forming rate.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the description, and must be determined according to the scope of the claims.

Claims (6)

1. The utility model provides a nail anvil subassembly with improved generation nail groove, includes nail anvil subassembly (1) and sets up nail groove (2) on nail anvil subassembly (1), its characterized in that: nail groove (2) are including two relative interior concave part (201) that set up, two be provided with outside convex arch (202) between interior concave part (201), interior concave part (201) have nail foot guide face (2011) and nail foot shaping face (2012), nail foot shaping face (2012) are located between nail foot guide face (2011) and arch (202), the circular arc is excessive between nail foot guide face (2011) and nail foot shaping face (2012), nail foot guide face (2011) is used for leading the nail foot to nail foot shaping face (2012), interval between interior concave part (201) both sides is reduced to nail foot shaping face (2012) by nail foot guide face (2011) gradually, and the nail foot is crooked to nail foot shaping face (2012) direction through nail foot guide face (2011), is followed closely foot shaping face (2012) by nail foot with both sides and is aimed at and is guided to protruding (202) again to make the nail foot inwards bend and the shaping.

2. The anvil assembly with the improved staple channel of claim 1, wherein: the nail foot guide surface (2011) is a first cambered surface.

3. The anvil assembly with the improved staple channel of claim 2, wherein: the nail foot forming surface (2012) is a second cambered surface.

4. The anvil assembly with the improved staple pocket of claim 1, wherein: a first transition surface (203) is arranged between the inner concave part (201) and the protrusion (202), and the first transition surface (203) is a third cambered surface.

5. The anvil assembly with the improved staple pocket of claim 1, wherein: the nail anvil component (1) is provided with a plurality of groups of nail grooves (2), and every two adjacent groups of nail grooves (2) are arranged in a staggered mode.

6. A stapler, characterized by: an anvil assembly with an improved staple magazine according to any of claims 1-5 is installed.

Images