Clamp head of clip applier

Abstract

The utility model provides a clamp head of a clip applier, and relates to the technical field of medical instruments. The forceps head of the clip applier comprises an upper forceps head and a lower forceps head, a connecting part connected with a handle pull rod of the clip applier is arranged at the common end of the upper clip head and the lower clip head; a clamping opening for clamping a ligature clip is formed between the upper forceps head and the lower forceps head; the upper clamp head and the lower clamp head are respectively provided with opposite side walls and a bottom wall connected between the side walls; a clamping groove is formed in the bottom wall of the upper clamp head and / or the bottom wall of the lower clamp head; when a clamping groove is formed in the bottom wall of the upper clamp head, the clamping groove penetrates through the outer side of the bottom wall from the inner side of the bottom wall of the upper clamp head; when the clamping groove is formed in the bottom wall of the lower clamp head, the clamping groove penetrates through the outer side of the bottom wall from the inner side of the bottom wall of the lower clamp head. The clamping grooves are formed in the clamping openings of the forceps heads, so that the ligature clips are clamped into the clamping grooves in the clamping process, and the problem that the ligature clips are unstable in clamping due to interference between the ligature clips and the inner side walls of the forceps heads is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a clamping head of a clip applicator. Background Art

[0002] In surgical operations, laparoscopic surgery is a newly developed minimally invasive method, which has the advantages of small incision, little pain, quick recovery, etc., and is deeply welcomed by the majority of patients. It has also become an inevitable trend in the development of modern surgical operations. During the operation, it is often necessary to perform ligation operations on blood vessels or other tubular tissues, such as bile ducts. Ligation clips have been widely used in laparoscopic surgery, and a clip applicator is an essential tool for applying ligation clips. In laparoscopic surgery, first, the clip applicator is used to clamp the ligation clip, then the clip applicator is inserted into the surgical site that needs to perform ligation operation through an endoscopic catheter or directly through a surgical incision, and then the ligation clip is manipulated through the clip applicator to ligate and seal the tubular tissue with the ligation clip.

[0003] When using a certain type of ligation clip with the existing clip applicator, interference occurs when the clamping head part clamps the ligation clip, resulting in possible deviation or detachment of the ligation clip during the operation process, increasing the operation time. Summary of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides a clamping head of a clip applicator. A clamping groove is arranged in the clamping opening of the clamping head, so that the ligation clip can be clamped into the clamping groove during the clamping process, avoiding interference between the ligation clip and the inner side wall of the clamping head and causing the problem of unstable clamping of the ligation clip.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A clamping head of a clip applicator, comprising:

[0007] An upper clamping head and a lower clamping head;

[0008] A common end of the upper clamping head and the lower clamping head has a connecting part connected to a handle pull rod of the clip applicator;

[0009] A clamping opening for clamping the ligation clip is formed between the upper clamping head and the lower clamping head;

[0010] Both the upper clamping head and the lower clamping head have opposite side walls and a bottom wall connected between the side walls;

[0011] A clamping groove is formed in the bottom wall of the upper clamping head and / or the bottom wall of the lower clamping head;

[0012] When the bottom wall of the upper clamping head is provided with a clamping groove, the clamping groove penetrates from the inner side of the bottom wall of the upper clamping head to the outer side of the bottom wall;

[0013] When a clamping groove is formed in the bottom wall of the lower jaw, the clamping groove penetrates from the inner side of the bottom wall of the lower jaw to the outer side of the bottom wall.

[0014] Optionally, the clamping groove has a pair of opposite long sides and a pair of opposite short sides;

[0015] Wherein,

[0016] The short side away from the connecting portion has a preset distance from the end of the jaw, so that the portion between the short side and the end of the jaw forms a sealing cross beam portion.

[0017] Optionally, the sealing cross beam portion extends from the inner side of one side wall of the jaw to the inner side of the opposite side wall.

[0018] Optionally, the thickness of the sealing cross beam portion does not exceed the thickness of the bottom wall of the jaw.

[0019] Optionally, the long side is close to or flush with the inner side of the side wall of the jaw.

[0020] Optionally, the shape of the short side of the clamping groove adjacent to the connecting portion is arc-shaped.

[0021] Optionally, the width dimension of one end of the clamping groove close to the connecting portion is larger than the width dimension of the end of the clamping groove away from the connecting portion.

[0022] Optionally, the length of the long side of the clamping groove does not exceed 1 / 2 of the length of the clamping opening.

[0023] Optionally, positioning holes are provided on the opposite side walls of the upper jaw and the lower jaw at the end away from the connecting portion.

[0024] Compared with the prior art, the beneficial effects of the present utility model are:

[0025] A clamping groove is arranged in the clamping opening of the jaw, so that the ligating clip is clamped into the clamping groove during the clamping process, avoiding interference between the ligating clip and the inner side wall of the jaw and causing the problem of unstable clamping of the ligating clip. Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 It is a schematic three-dimensional structure diagram of the jaw of the clip applicator.

[0028] Figure 2 It is a schematic plan view of the jaws of the clip applicator.

[0029] Figure 3 It is a schematic exploded view of the jaws of the clip applicator.

[0030] Figure 4 It is a schematic partial view of the jaws of the clip applicator.

[0031] Reference numerals:

[0032] 1. upper jaw; 2. lower jaw; 3. connecting part; 4. clamping opening; 5. side wall; 6. bottom wall; 7. clamping groove; 8. sealing crossbeam part; 9. arc; 10. positioning hole. Detailed implementation manners

[0033] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0035] In the present invention, unless otherwise clearly defined and limited, terms such as "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "under" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0037] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals in different examples, and this repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between various embodiments and / or settings discussed.

[0038] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0039] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, an embodiment of the present utility model provides a jaw head of a clip applicator, including:

[0040] an upper jaw 1 and a lower jaw 2; a common end of the upper jaw 1 and the lower jaw 2 has a connecting portion 3 connected to a handle pull rod of the clip applicator; a clamping opening 4 for clamping a ligating clip is formed between the upper jaw 1 and the lower jaw 2; the upper jaw 1 and the lower jaw 2 each have opposite side walls 5 and a bottom wall 6 connected between the side walls 5; a clamping groove 7 is formed in the bottom wall 6 of the upper jaw 1 and / or the bottom wall 6 of the lower jaw 2.

[0041] When the clamping groove 7 is formed in the bottom wall 6 of the upper jaw 1, the clamping groove 7 penetrates from the inner side of the bottom wall 6 of the upper jaw 1 to the outer side of the bottom wall 6.

[0042] When the clamping groove 7 is formed in the bottom wall 6 of the lower jaw 2, the clamping groove 7 penetrates from the inner side of the bottom wall 6 of the lower jaw 2 to the outer side of the bottom wall 6.

[0043] During use, the connecting parts 3 of the upper clamping head 1 and the lower clamping head 2 are both connected to the handle pull rod of the clamping forceps, and open and close under the drive of the handle pull rod of the clamping forceps, facilitating the placement of the ligating clip into the clamping opening 4. After the ligating clip is placed in the clamping opening 4, part of the structure of the ligating clip is caught in the clamping groove 7 provided in the upper clamping head 1 and / or the clamping groove 7 in the lower clamping head 2, preventing interference between the ligating clip and the inner side wall 5 of the clamping head and avoiding the problem of unstable clamping of the ligating clip.

[0044] In one embodiment, as Figure 1 , Figure 2 and Figure 4 shown, when the bottom wall 6 of the upper clamping head 1 is provided with a clamping groove 7, the clamping groove 7 penetrates from the inner side of the bottom wall 6 of the upper clamping head 1 to the outer side of the bottom wall 6, which can solve the interference problem during the cooperation between the clamping head and the ligating clip.

[0045] In another embodiment, as Figure 1 , Figure 2 and Figure 4 shown, when the bottom wall 6 of the lower clamping head 2 is provided with a clamping groove 7, the clamping groove 7 penetrates from the inner side of the bottom wall 6 of the lower clamping head 2 to the outer side of the bottom wall 6, and still can solve the interference problem during the cooperation between the clamping head and the ligating clip.

[0046] In another embodiment, as Figure 1 , Figure 2 and Figure 4 shown, in order to further reduce the interference problem between the clamping head and the ligating clip, clamping grooves 7 are provided on the inner side walls 5 of both the upper clamping head 1 and the lower clamping head 2, and the clamping grooves 7 penetrate from the inner side of the bottom walls 6 of the upper clamping head 1 and the lower clamping head 2 to the outer side of the bottom walls 6.

[0047] In one of the embodiments, as Figure 1 and Figure 3 shown, the clamping groove 7 has a pair of opposite long sides and a pair of opposite short sides. The short side away from the connecting part 3 has a preset distance from the end of the clamping head, so that the part between the short side and the end of the clamping head forms a sealing crossbeam part 8.

[0048] When taking out the ligating clip from the tray containing the ligating clip, the ligating clip will deviate from the correct clamping position of the clamping head, and the clamping head will not guide the ligating clip to automatically snap into the clamping head positioning hole, resulting in the problem of failed clip taking. Therefore, a sealing crossbeam part 8 is provided at the distal end of the clamping head.

[0049] In another embodiment, in order to improve the stability of the clamping head, the sealing crossbeam part 8 extends from the inner side of one side wall 5 of the clamping head to the inner side of the opposite side wall 5.

[0050] In another embodiment, as Figure 3 and Figure 4As shown, the long side is close to the inner side of the jaw side wall 5 or flush with the inner side of the jaw side wall 5.

[0051] When the long side is close to the inner side of the jaw side wall 5, the structural strength of the distal end of the jaw is enhanced, improving the service life of the jaw.

[0052] When the long side is flush with the inner side of the jaw side wall 5, the width dimension of the clamping groove 7 is increased to facilitate the insertion of the ligating clip.

[0053] In one embodiment, as Figure 1 and Figure 3 shown, the shape of the short side of the clamping groove 7 adjacent to the connecting portion 3 is an arc 9.

[0054] Since the ligating clip will be placed in the body, in order to make the structure of the clamping groove 7 more compatible with the ligating clip, one end of the clamping groove 7 close to the connecting portion 3 is set as an arc 9.

[0055] In one embodiment, as Figure 3 shown, the width dimension of one end of the clamping groove 7 close to the connecting portion 3 is greater than the width dimension of the end of the clamping groove 7 far from the connecting portion 3.

[0056] In order to make the clamping groove 7 more compatible with the ligating clip, the width dimension of one end of the clamping groove 7 close to the connecting portion 3 is greater than the width dimension of the end of the clamping groove 7 far from the connecting portion 3.

[0057] In one embodiment, in order to ensure the front-end strength of the jaw, the length of the long side of the clamping groove 7 does not exceed 1 / 2 of the length of the clamping opening 4.

[0058] In another embodiment, as Figure 1 and Figure 4 shown, positioning holes 10 are provided on the opposite side walls 5 at the other ends of the upper jaw 1 and the lower jaw 2.

[0059] Positioning holes 10 are provided at the ends of the upper jaw 1 and the lower jaw 2 far from the connecting portion 3 to facilitate the formation of clamping positioning of the ligating clip by the positioning holes 10 when the jaw clamps the ligating clip, improving the use stability of the clip applicator during the clamping process.

[0060] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The jaw of a clip applicator, comprising: an upper jaw and a lower jaw; a common end of the upper jaw and the lower jaw has a connecting portion connected to the handle pull rod of the clip applicator; a clamping opening for clamping a ligating clip is formed between the upper jaw and the lower jaw; both the upper jaw and the lower jaw have opposite side walls and a bottom wall connected between the side walls; characterized in that: a clamping groove is formed in the bottom wall of the upper jaw and / or the bottom wall of the lower jaw; when the clamping groove is formed in the bottom wall of the upper jaw, the clamping groove penetrates from the inner side of the bottom wall of the upper jaw to the outer side of the bottom wall; when the clamping groove is formed in the bottom wall of the lower jaw, the clamping groove penetrates from the inner side of the bottom wall of the lower jaw to the outer side of the bottom wall.

2. The jaw of the clip applicator according to claim 1, characterized in that: the clamping groove has a pair of opposite long sides and a pair of opposite short sides; wherein, the short side away from the connecting portion has a preset distance from the end of the jaw, so that the portion between the short side and the end of the jaw forms a sealing cross beam portion.

3. The clamping head of the clip applicator according to claim 2, characterized in that, the sealing cross beam portion extends from the inner side of one side wall of the jaw to the inner side of the opposite side wall.

4. The clamping head of the clip applicator according to claim 2, wherein, the long sides are close to the inner side of the side wall of the jaw or flush with the inner side of the side wall of the jaw.

5. The clamping head of the clip applicator according to claim 2, characterized in that, the shape of the short side of the clamping groove adjacent to the connecting portion is arc-shaped.

6. The clamping head of the clip applicator according to claim 2, characterized in that, the width dimension of one end of the clamping groove close to the connecting portion is greater than the width dimension of the end of the clamping groove away from the connecting portion.

7. The jaw of the clip applicator according to claim 2, characterized in that, the length of the long side of the clamping groove does not exceed 1 / 2 of the length of the clamping opening.

8. The clamping head of the clip applicator according to claim 1, characterized in that, positioning holes are provided on the opposite side walls of the upper jaw and the lower jaw at the end away from the connecting portion.

Images