阅读说明：本技术 一种吻合钉及吻合器 (Anastomosis nail and anastomat ) 是由 李学军 赵博 高轶明 于 2019-09-30 设计创作，主要内容包括：本发明公开了一种医疗吻合器用吻合钉,其包括钉冠(1)、第一钉腿(2)和第二钉腿(3),所述第一钉腿(2)和第二钉腿(3)的末端均成型有钉尖,所述钉尖被成型为凹嵌式折线尖型结构或突出式折线尖型结构,并进而还可成型有三棱锥结构的顶部刀刃；特定的钉尖设计结构使得该吻合钉具有更多刀口数量,增加了钉入人体组织的锋利程度,吻合效果较好。(The invention discloses an anastomosis nail for a medical anastomat, which comprises a nail crown (1), a first nail leg (2) and a second nail leg (3), wherein nail tips are formed at the tail ends of the first nail leg (2) and the second nail leg (3), the nail tips are formed into a concave embedded type fold line sharp structure or a protruding type fold line sharp structure, and further, a top cutting edge of a triangular pyramid structure can be formed; the specific nail tip design structure enables the anastomosis nail to have more knife edges, increases the sharpness of the nail in human tissues and has better anastomosis effect.)

1. A staple, comprising: the nail head comprises a nail crown (1), a first nail leg (2) and a second nail leg (3), wherein the first nail leg (2) and the second nail leg (3) are respectively arranged at two ends of the nail crown (1) and extend at the same side, nail tips are formed at the tail ends of the first nail leg (2) and the second nail leg (3), the nail tips of the first nail leg (2) and the nail tips of the second nail leg (3) have the same outer contour line and are axisymmetric about the longitudinal central axis of the anastomotic nail; the nail tip is characterized in that the nail tip is provided with a first outer inclined surface and a second outer inclined surface, an included angle is formed between the first outer inclined surface and the second outer inclined surface, and the included angle is not 180 degrees.

2. The staple according to claim 1, wherein the included angle between the first and second outer inclined surfaces is such that the staple tip is formed as a recessed fold-line point structure or a protruding fold-line point structure.

3. Staple according to claim 1, characterized in that between the second outer bevel and the inner side of the corresponding first (2) or second (3) leg a top edge is formed, which is shaped as a triangular pyramid.

4. the staple according to claim 3, wherein the triangular pyramid structure is one of a ribbed pyramid structure, a concave triangular pyramid structure and a flat triangular pyramid structure.

5. A staple according to claim 3 or 4, wherein a closed outer contour line surrounds the first outer chamfer and the base of the triangular pyramid structure, wherein a groove (243) is formed with the outer contour line as an edge line, so that a recessed peripheral edge (4) is formed at the outer contour line.

6. Staple according to claim 3 or 4, characterised in that a closed outer contour line, which is surrounded by the first outer bevel and the base of the triangular pyramid structure, gradually transitions in width from the first leg (2) and the second leg (3) to the outer contour line, wherein a groove (243) is cut in the outer contour line in such a way that a projecting peripheral edge (5) is formed at the outer contour line.

7. staple according to claim 1, characterized in that said first leg (2) and second leg (3) are provided with a bend dividing said first leg (2) and second leg (3) equally into a lower leg portion and an upper leg portion.

8. the staple according to claim 1, wherein the staple is made of a metal material.

9. A staple according to claim 1 having a silver ion coating on the surface thereof.

10. A medical stapler, characterized in that it is equipped with a staple according to any one of claims 1-9.

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to an anastomosis nail and an anastomat.

Background

With the development of medical technology, most of the surgeons gradually abandon the needle-thread freehand anastomosis operation mode to suture human tissues or organs, but use the medical anastomat instead, use the medical anastomat to suture, the operation is simple and easy, the suture is safe, and the wound is small. Therefore, the medical stapler is widely used in end, end and side anastomosis operations of organs and tissues such as digestive tract organs, respiratory tract organs, genitourinary organs and the like of a human body, an operation for forming a passage, an operation for closing an incision and an operation for clamping or cutting, and is particularly suitable for an anastomosis operation of organs and tissues which are difficult to expose and operate, so that the operation time can be shortened, and the operation quality can be improved.

The working principle of the medical stapler is mainly to use staples to break or staple tissues, similar to a stapler. When in operation, the medical anastomat clamps the tissue to be anastomosed between the nail anvil and the nail bin which are close to each other, the anastomotic nails are pushed out from the nail bin, after the nail tips of the anastomotic nails penetrate through the clamped tissue to be anastomosed, the anastomotic nails are bent and deformed on the nail anvil forming groove on the nail anvil, and the U-shaped or inverted trapezoidal anastomotic nails are bent into a B shape, thereby achieving the purpose of the operation of anastomosing the tissue.

In practice, it has been found that the tip of the staple has a significant effect on the working performance of the staple. Because the design of nail point portion is improper, current anastomosis nail has the problem that is difficult for piercing human tissue, and the working direction of anastomosis nail during the operation is also unstable, is difficult for piercing the tissue, causes extra wound for the human body easily, and by the leakproofness of anastomosis tissue and hemostatic effect also relatively poor, sews up inhomogeneous, influences healing effect, has caused the obstacle for clinical verification and use.

Therefore, it is needed to design an anastomosis nail for a medical anastomat, which has strong puncture force, stable working direction and good suturing effect, so as to reduce the operation pain of patients and improve the operation quality.

Disclosure of Invention

In view of the above, the present invention aims to provide a staple for a medical stapler, which has a greater number of knife edges due to a specially designed staple tip structure, increases the sharpness of the staple into human tissue, has a better stapling effect, can reduce the pain of a patient in surgery, and can improve the quality of the surgery.

The invention is realized by adopting the following technical scheme:

A staple, comprising: the nail head of the first nail leg and the nail head of the second nail leg have the same outer contour line and are axisymmetric about a longitudinal central axis of the anastomotic nail; the nail point is provided with a first outer inclined surface and a second outer inclined surface, an included angle is formed between the first outer inclined surface and the second outer inclined surface, and the included angle is not 180 degrees.

Specifically, the included angle between the first outer inclined surface and the second outer inclined surface enables the nail tip to be formed into a concave embedded type folding line tip structure or a protruding type folding line tip structure.

Further, a top blade is formed between the second outer slope and the inner side surface of the corresponding first or second nail leg, and the top blade is shaped into a triangular pyramid structure.

Specifically, the triangular pyramid structure is one of a convex pyramid structure, a concave triangular pyramid structure and a flat triangular pyramid structure.

Furthermore, a closed outer contour line surrounds the first outer inclined surface and the bottom surface of the triangular pyramid structure, and a groove is formed by taking the outer contour line as an edge line, so that a concave embedded type peripheral blade is formed at the outer contour line.

Preferably, a closed outer contour line surrounds the first outer bevel and the bottom surface of the triangular pyramid structure, the width of the first and second legs is gradually increased to the outer contour line, and a groove is formed by taking the outer contour line as an edge line, so that a protruding peripheral blade is formed at the outer contour line.

Preferably, the first nail leg and the second nail leg are provided with bent parts which divide the first nail leg and the second nail leg into a lower nail leg part and an upper nail leg part.

Preferably, the material of the staple is a metal material.

Preferably, the surface of the staple is plated with a silver ion coating.

In addition, the invention further provides a medical anastomat which can be assembled with the anastomosis nail provided by the invention.

compared with the prior art, the invention has the following beneficial technical effects:

The anastomosis nail provided by the invention has a nail tip structure designed specifically, so that the anastomosis nail has more knife edges, the sharpness degree of the anastomosis nail nailed into human tissues is increased, the resistance force applied when the anastomosis nail penetrates into the human tissues can be reduced, the stable forming of the anastomosis nail is ensured, the anastomosis effect is better, and the phenomena of wound bleeding and the like are avoided.

The invention is further illustrated with reference to the following figures and examples.

drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural view of a staple for a medical stapler according to an embodiment of the present invention;

FIG. 2 is a schematic view of a staple tip for a staple in accordance with an embodiment of the present invention;

FIG. 3 is a schematic view of an alternative staple tip for use in a staple in accordance with an embodiment of the present invention;

FIG. 4 is a schematic view of another alternative staple tip for a staple provided in accordance with an embodiment of the present invention;

Fig. 5 is a schematic structural view of another staple tip for a staple according to an embodiment of the present invention.

Reference numerals:

The nail comprises a nail crown 1, a first nail leg 2, a first nail leg lower part 21, a first bent part 22, a first nail leg upper part 23, a first nail tip 24, a first outer inclined surface 241, a second outer inclined surface 242, a side edge 2421, a side edge 2422, a side edge 2423, an annular groove 243, a first groove part 2431, a second groove part 2432, a second nail leg 3, a second nail leg lower part 31, a second bent part 32, a second nail leg upper part 33, a second nail tip 34, a concave embedded type peripheral cutting edge 4, a first concave embedded type peripheral cutting edge 41, a second concave embedded type peripheral cutting edge 42, a protruded type peripheral cutting edge 5, a first concave embedded type peripheral cutting edge 51 and a second protruded type peripheral cutting edge 52.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

A staple for a medical stapler according to an embodiment of the present invention will be described with reference to fig. 1. As shown in fig. 1, the anastomosis nail for the medical anastomat comprises a nail crown 1, wherein two ends of the nail crown 1 are respectively connected with a first nail leg 2 and a second nail leg 3, and the first nail leg 2 and the second nail leg 3 extend at the same side, so that the whole anastomosis nail is in an inverted trapezoidal structure without a long bottom edge, namely, an included angle between the nail legs 2 and 3 and the nail crown 1 is an obtuse angle.

It will be understood by those skilled in the art that the specific shape of the staple is not limited thereto, and those skilled in the art can design the staple according to actual situations, such as a substantially U-shaped configuration, a substantially inverted "pi" configuration, etc., which are all applicable.

It will be appreciated by those skilled in the art that crown 1 may be formed in a variety of suitable geometries, such as a cylindrical configuration, a rectangular parallelepiped configuration, and the like.

further, the first leg 2 of the anastomosis nail provided by the invention is provided with a first leg lower part 21, a first bending part 22 and a first leg upper part 23, the first leg lower part 21 and the first leg upper part 23 are in transition connection through the first bending part 22, the first leg upper part 23 is bent inwards at the first bending part 22 relative to the first leg lower part 21, the other end of the first leg lower part 21 is connected with the crown 1, and the tail end of the first leg upper part 23 is formed into a first nail tip 24; the second nail leg 3 is provided with a second nail leg lower part 31, a second bent part 32 and a second nail leg upper part 33, the second nail leg lower part 31 and the second nail leg upper part 33 are transitionally connected by the second bent part 32, the second nail leg upper part 33 is bent inwards relative to the second nail leg lower part 31 at the second bent part 32, the other end of the second nail leg lower part 31 is connected with the crown 1, and the tail end of the second nail leg upper part 33 is formed into a second nail tip 34.

Preferably, the joints between the legs 2, 3 and the crown 1 of the staple may adopt a circular arc transition structure.

As a variant, however, the legs 2, 3 of the staple may also extend entirely in a straight or curved line.

The staple legs 2 and 3 of the staple can be molded with the crown 1 in an integrated molding mode, the height of the staple legs is set to be normal molding, and the staple legs 2 and 3 are bent at the bent parts after molding, so that the standard molding probability is improved.

It will be appreciated by those skilled in the art that staples provided by the present invention may be made of a metallic material, preferably a titanium alloy material or a degradable magnesium alloy material which allows staples remaining in the body tissue and organs after suturing to be degraded or fragmented as the wound slowly heals.

Preferably, the surface of the anastomosis nail provided by the invention can be uniformly plated with a silver ion coating, the thickness of the coating is 0.005-0.01 mm, and the silver ion coating can play a role in diminishing inflammation and sterilizing the anastomosis wound surface of human tissues and organs and is beneficial to wound healing.

Further, the distal end of the first leg upper portion 23 of the staple of the present invention is formed into a first blade-shaped tip 24, and the distal end of the second leg upper portion 33 is formed into a second blade-shaped tip 34, wherein the first and second tips 24 and 34 have the same outer contour line, and both are axisymmetric with respect to the longitudinal central axis of the staple.

In order to improve the quality of the operation, ensure sufficient penetration strength of the staples, and enable easier penetration into the body tissue for superior suturing, the present invention continues to provide an improved staple point structure based on the above-described embodiment shown in fig. 1, wherein fig. 2 illustrates this improvement of the present invention.

As shown in fig. 2, taking the first spike 24 as an example, in the modification, the first spike 24 is integrally formed into a broken line spike-type structure, i.e., the outer slope of the first spike 24 includes a first outer slope 241 and a second outer slope 242, wherein the included angle between the first outer slope 241 and the second outer slope 242 is not 180 °.

Specifically, the angle between the first outer inclined surface 241 and the normal plane of the inner side surface of the first leg upper portion 23 is larger than the angle between the second outer inclined surface 242 and the normal plane of the inner side surface of the first leg upper portion 23, that is, the first spike 24 is integrally formed in a concave-embedded type bent line spike-shaped structure (as shown in the left side of fig. 2), or the angle between the first outer inclined surface 241 and the normal plane of the inner side surface of the first leg upper portion 23 is smaller than the angle between the second outer inclined surface 242 and the normal plane of the inner side surface of the first leg upper portion 23, that is, the first spike 24 is integrally formed in a protruding type bent line spike-shaped structure (as shown in the right side of fig. 2).

It will be appreciated by those skilled in the art that in this embodiment, second tip 34 shares the same outer contour line as first tip 24, and is axisymmetric about the longitudinal center axis of the staple and will not be described further herein.

Further, to further enhance the stapling effect of the staple, the present invention continues to provide another improved staple point structure based on the above-described embodiment shown in fig. 2, wherein fig. 3 illustrates such an improvement of the present invention.

As shown in fig. 3, taking the first spike 24 as an example, in this modification, for the first spike 24 of the recessed polygonal-line spike type structure, the spike portion between the second outer inclined surface 242 thereof and the inner side surface of the first leg upper portion 23, also referred to as a top blade, is shaped into a triangular pyramid structure having three side edges 2421, 2422 and 2423, and in the embodiment shown in fig. 3, the triangular pyramid structure is specifically a convex pyramid structure, but not limited thereto, and the triangular pyramid structure may also be a concave triangular pyramid structure or a flat triangular pyramid structure.

It will be appreciated by those skilled in the art that in this embodiment, second tip 34 shares the same outer contour as first tip 24, and is axisymmetric about the longitudinal center axis of the staple and will not be described further herein.

It will be appreciated by those skilled in the art that the triangular pyramid configuration described above is equally applicable to the point of the protruding broken line point type configuration.

Further, to further enhance the stapling effect of the staple, the present invention continues to provide yet another improved staple point structure based on the above-described embodiments shown in fig. 2 or 3, wherein fig. 4 shows such an improvement of the present invention.

As shown in fig. 4, still taking the first spike 24 as an example, in the modification, for the first spike 24 of the recessed-embedded type of broken-line spike structure, a first groove portion 2431 is formed below the first outer inclined surface 241, and a plane in which the first groove portion 2431 is located and a plane in which the first outer inclined surface 241 is located are parallel to each other; a second groove portion 2432 is formed under the triangular pyramid structure, and a plane in which the second groove portion 2432 is located and a plane in which the bottom surface of the triangular pyramid structure is located are parallel to each other. The first groove portion 2431 and the second groove portion 2432 are connected end to form the groove 243. In addition, the depths of the first groove portion 2431 and the second groove portion 2432 may be designed by those skilled in the art according to actual conditions as long as sufficient penetration strength of the staples is ensured.

Preferably, the contour line of the first groove portion 2431 away from the first leg upper portion 23 coincides with the outer contour line of the first outer inclined surface 241, so that the first recessed insert type peripheral blade 41 is formed; the contour line of the second groove portion 2432, which is distant from the first leg upper portion 23, coincides with the outer contour line of the bottom surface of the triangular pyramid structure, whereby a second recessed insert type peripheral blade 42 is formed. Similarly, the first female-fit peripheral cutting edge 41 and the second female-fit peripheral cutting edge 42 are connected end to form a complete female-fit peripheral cutting edge 4.

It will be appreciated by those skilled in the art that in this embodiment, second tip 34 shares the same outer contour as first tip 24, and is axisymmetric about the longitudinal center axis of the staple and will not be described further herein.

It will be appreciated by those skilled in the art that the annular groove 243 described above is equally applicable to the spike tip of the protruding fold line spike type structure.

Further, to further enhance the stapling effect of the staple, the present invention continues to provide yet another improved staple point structure based on the above-described embodiments shown in fig. 2 or 3, wherein fig. 5 illustrates such an improvement of the present invention.

As shown in fig. 5, taking the first spike 24 as an example, in the modification, for the first spike 24 of the recessed-embedded-type broken-line spike structure, the width of the region from the first leg upper portion 23 to the first outer inclined surface 241 is increased, a first groove portion 2431 is formed in the region below the first outer inclined surface 241, and the plane of the first groove portion 2431 is parallel to the plane of the first outer inclined surface 241; the width of the region from the first leg upper portion 23 to the bottom surface of the triangular pyramid structure is gradually increased, and a second groove portion 2432 is formed in the region below the triangular pyramid structure, and the plane in which the second groove portion 2432 is located and the plane in which the bottom surface of the triangular pyramid structure is located are parallel to each other. The first groove portion 2431 and the second groove portion 2432 are connected end to form the groove 243. In addition, the depths of the first groove portion 2431 and the second groove portion 2432 may be designed by those skilled in the art according to actual conditions as long as sufficient penetration strength of the staples is ensured.

Preferably, the contour line of the first groove portion 2431 away from the first leg upper portion 23 coincides with the outer contour line of the first outer inclined surface 241, thereby forming a first protruding peripheral blade 51; the contour line of the second groove portion 2432, which is distant from the first leg upper portion 23, coincides with the outer contour line of the bottom surface of the triangular pyramid structure, whereby a second protrusion-type peripheral blade 52 is formed. Similarly, the first and second raised peripheral blades 51, 52 are joined end to form a complete raised peripheral blade 5.

It will be appreciated by those skilled in the art that in this embodiment, second tip 34 shares the same outer contour as first tip 24, and is axisymmetric about the longitudinal center axis of the staple and will not be described further herein.

It will be appreciated by those skilled in the art that the annular groove 243 described above is equally applicable to the spike tip of the protruding fold line spike type structure.

Through the design, the anastomosis nail provided by the invention has more knife edges, increases the sharpness of the nail penetrating into human tissues, can reduce the resistance force applied when the anastomosis nail penetrates into the human tissues, ensures the stable forming of the anastomosis nail, has good anastomosis effect, and can not cause the phenomena of wound bleeding and the like.

In addition, the invention also provides a medical anastomat which uses the anastomosis nail provided by the invention.

It is noted that, in this document, relational terms are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.