Anastomosis nail and medical anastomat
阅读说明:本技术 一种吻合钉及医疗吻合器 (Anastomosis nail and medical 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:本发明公开了一种吻合钉及医疗吻合器,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,所述钉尖具有第一外斜面和第二外斜面,所述第一外斜面和第二外斜面的交线为相对应的所述第一钉腿(2)或第二钉腿(3)沿其长度方向上的最远端,所述第一外斜面与相对应的所述第一钉腿(2)或第二钉腿(3)的外侧面连接处成型有抵顶刃部(4)。通过使抵顶刃部(4)率先与医疗吻合器的钉砧(5)接触,有效降低了吻合钉的受力强度,避免了钉腿的过度弯曲变形,且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 and a medical anastomat, which comprise 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), each nail tip is provided with a first outer inclined surface and a second outer inclined surface, the intersection line of the first outer inclined surfaces and the second outer inclined surfaces is the farthest end of the corresponding first nail leg (2) or the corresponding second nail leg (3) along the length direction of the first nail leg or the second nail leg, and a propping blade part (4) is formed at the joint of the first outer inclined surfaces and the outer side surface of the corresponding first nail leg (2) or the corresponding second nail leg (3). The abutting edge part (4) is firstly contacted with the nail anvil (5) of the medical anastomat, so that the stress strength of the anastomosis nail is effectively reduced, the excessive bending deformation of nail legs is avoided, the anastomosis nail has more knife edges, the sharpness degree of the anastomosis nail into human tissues is increased, and the anastomosis effect is better.)
1. A staple, characterized in that it comprises: crown (1), first nail leg (2) and second nail leg (3), the equal shaping in end of first nail leg (2) and second nail leg (3) has the nail point, the nail point has first outer inclined plane and second outer inclined plane, the intersection line on first outer inclined plane and second outer inclined plane is corresponding first nail leg (2) or second nail leg (3) are along the ascending farthest end of its length direction, first outer inclined plane and corresponding the lateral surface junction shaping of first nail leg (2) or second nail leg (3) has and supports top cutting part (4), should support top cutting part (4) by the structure: in the process of deforming the staple by means of the medical stapler, the nail anvil (5) of the medical stapler can firstly transmit the deformation force to the nail tip by means of the abutting blade part (4).
2. The staple according to claim 1, wherein a triangular pyramid structure is further formed on the second outer inclined surface.
3. The staple according to claim 2, wherein the triangular pyramid structure is one of a convex triangular pyramid structure, a concave triangular pyramid structure, and a flat triangular pyramid structure.
4. Staple according to any one of claims 1 to 3, characterised in that a groove (243) is made with the whole or part of the outer contour line surrounding the first and second outer ramps, so that a recessed peripheral edge (6) is formed at the outer contour line.
5. Staple according to any one of claims 1 to 3, characterised in that the edge line is defined in whole or in part by an outer contour line which surrounds the first and second outer bevels, the first (2) and second (3) legs being in increasing width transition to the edge line so that a projecting peripheral edge (7) is formed at the outer contour line.
6. The staple according to claim 1, characterized in that said first leg (2) and said second leg (3) are respectively provided at both ends of said crown (1) and extend on the same side, said tip of said first leg (2) and said tip of said second leg (3) having the same outer profile and being axisymmetric about the longitudinal central axis of said staple.
7. The staple according to claim 1, wherein the first leg (2) and the second leg (3) are provided with a bend which divides the first leg (2) and the second leg (3) into a lower leg portion and an upper leg portion.
8. Staple according to claim 1, characterized in that the angle between the first (2) and second (3) legs and the crown (1) is obtuse.
9. The staple according to claim 1, wherein the staple is made of a metal material, and a silver ion coating is plated on the surface of the staple.
10. Medical stapler comprising an anvil (5), 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 for a medical 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.
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.
Medical anastomats are widely used for end-to-end, end-to-side and side-to-side anastomosis of organs and tissues such as digestive tract organs, respiratory tract organs, genitourinary organs and the like of human bodies, for channel forming operations, incision closing operations and clamping or cutting operations, are particularly suitable for anastomosis operations of organs and tissues which are difficult to expose and operate, can reduce operation time and improve operation quality.
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 is improper, current anastomosis nail has the problem that is difficult for pricking human tissue, and the working direction of anastomosis nail is also unstable during the operation, causes the mistake to pierce through easily, causes extra wound to the human body, and is also relatively poor by the leakproofness and the hemostatic effect of anastomotic tissue, 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, in order to solve the above problems in the prior art, the present invention aims to provide an anastomosis nail for a medical stapler, wherein a top edge portion is formed on a nail tip of the anastomosis nail, and the top edge portion is firstly contacted with a nail anvil of the medical stapler, so that the stress strength of the anastomosis nail can be effectively reduced, excessive bending deformation of nail legs is avoided, the anastomosis nail has more knife edges, the sharpness degree of the anastomosis nail into human tissues is increased, the anastomosis effect is better, the operation pain of a patient can be reduced, and the operation quality is improved.
The invention is realized by adopting the following technical scheme:
a staple, comprising: crown, first nail leg and second nail leg, the equal shaping in end of first nail leg and second nail leg has the nail point, the nail point has first outer inclined plane and second outer inclined plane, the intersection line on first outer inclined plane and second outer inclined plane is corresponding first nail leg or second nail leg are along the ascending distal end of its length direction, first outer inclined plane and corresponding the lateral surface junction shaping of first nail leg or second nail leg has the cutting part of pushing against, and this cutting part of pushing against is constructed as: in the process that the anastomosis nail is deformed by the medical anastomat, the nail anvil of the medical anastomat can firstly transmit the deformation force to the nail tip by the abutting blade part.
Further, a triangular pyramid structure is further formed on the second outer inclined surface.
Preferably, the triangular pyramid structure is one of a convex triangular pyramid structure, a concave triangular pyramid structure, and a flat triangular pyramid structure.
Furthermore, a groove is formed by taking the whole or part of an outer contour line surrounding the first outer inclined surface and the second outer inclined surface as an edge line, so that a concave embedded type peripheral blade is formed at the outer contour line.
Further, the whole or part of the outer contour line surrounding the first outer bevel and the second outer bevel is taken as a margin line, and the width of the first nail leg and the second nail leg is gradually transited to the margin line, so that a protruding peripheral edge is formed at the outer contour line.
Further, the first nail leg and the second nail leg are arranged at two ends of the crown and extend on the same side, and the nail tip of the first nail leg and the nail tip of the second nail leg have the same outer contour line and are axisymmetric about the longitudinal central axis of the anastomotic nail.
Furthermore, the first nail leg and the second nail leg are provided with bent portions, and the bent portions divide the first nail leg and the second nail leg into a lower nail leg portion and an upper nail leg portion.
Furthermore, the material of the anastomosis nail is a metal material.
Further, the surface of the anastomosis nail is plated with a silver ion coating.
Further, the included angle between the first nail leg and the crown and the included angle between the second nail leg and the crown are obtuse angles.
In addition, the invention further provides a medical anastomat which comprises a nail anvil and is provided with the anastomosis nail provided by the invention.
Compared with the prior art, the invention has the following beneficial technical effects:
the abutting edge part is formed on the nail tip of the anastomosis nail, and the abutting edge part is firstly contacted with the nail anvil, so that the stress strength of the anastomosis nail can be effectively reduced, the first nail leg and the second nail leg are prevented from being bent and deformed excessively, more knife edges are provided, the sharpness degree of the nail inserted 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 cannot be caused.
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
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
It will be understood by those skilled in the art that the specific shape of the staple is not limited herein and that the design may be made by those skilled in the art, such as a generally U-shaped configuration, a generally inverted "П" configuration, etc., as appropriate.
It will be appreciated by those skilled in the art that
Further, the
Preferably, the joints between the
As a variant, however, the
The
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
In order to improve the quality of the operation, ensure that the staple has enough penetrating strength, can penetrate the human tissue more easily and obtain excellent suture effect, the invention provides an improved structure of the staple point, wherein, fig. 2 shows the improvement of the invention.
As shown in fig. 2, taking the
It will be appreciated by those skilled in the art that in this embodiment,
It can be understood that in the deformation process of the anastomosis nail, the
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, still taking the
It will be appreciated by those skilled in the art that in this embodiment,
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
Preferably, the contour line of the
Preferably, the discontinuous peripheral cutting edge 6 is formed with a portion of the outer contour line surrounding the first and second
It will be appreciated by those skilled in the art that in this embodiment,
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
Preferably, the portion of the outer contour line surrounding the first 241 and second 242 outer bevels is used as an edge line, to which the width of the
It will be appreciated by those skilled in the art that in this embodiment,
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 stapler which is provided with a
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.
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