Holding structure and clip applier with same

Abstract

The utility model relates to the technical field of medical instruments, in particular to a holding structure and a clip applier with the same, the holding structure is used for fixing a sleeve assembly of the clip applier and triggering a ligation clip in a sleeve, and the holding structure comprises a holding handle, a locking mechanism and a locking mechanism, the holding handle comprises a fixed cavity arranged at the front end and a holding part extending away from the fixed cavity; the trigger handle is rotationally connected with the holding handle and comprises a driving part and a pressing and holding part, one end of the driving part extends into the fixed cavity and is used for driving pushing and clamping closing of the ligation clip under the action of external force, and the pressing and holding part is located on the outer side of the fixed cavity; wherein the pressing and holding part and / or the holding part are / is provided with a silica gel covering piece. Compared with the prior art, the anti-skid performance of the holding structure is improved, the holding comfort of a physician during use is improved, fatigue of the physician is reduced, the physician can work more accurately, and medical accidents caused by misoperation are reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a gripping structure and an applicator having the gripping structure. Background Technology

[0002] Clip applicators are commonly used tools in surgical procedures to close tissues or blood vessels using mechanical clamps, achieving hemostasis. They are typically used in conjunction with ligation clips (also known as titanium clips or vascular clips) to aid in hemostasis and the closure of blood vessels or other luminal structures. Clip applicators are widely used in both open and minimally invasive surgeries, particularly for handling smaller blood vessels or tissue structures during surgery.

[0003] In the prior art, such as Chinese invention patent with publication number CN118000821A, disclosed on May 10, 2024, a clamp applicator is used. When it is operated, the trigger is first held in the initial position to the first position, so that the internal ligation clamp is pushed to the distal clamping position. Then, the trigger is held further to the second position, so that the ligation clamp pushed to the distal end closes, thereby clamping the blood vessel to achieve hemostasis.

[0004] However, the inventors discovered that the handles of existing clamp applicators are mostly made of hard plastic to ensure structural strength. The surface of hard materials is smooth, which makes it easy for doctors to slip during operation, thus affecting the accuracy of the surgical procedure. Utility Model Content

[0005] In view of at least one of the above technical problems, the present invention provides a gripping structure and an applicator having the gripping structure, thereby improving the accuracy of operation by adopting structural improvements.

[0006] According to a first aspect of the present invention, a gripping structure and an applicator having the gripping structure are provided. The gripping structure is used to fix a cannula assembly of the applicator and trigger a ligation clip within the cannula. The gripping structure includes:

[0007] A grip handle, the grip handle including a fixed chamber disposed at a front end and a grip portion extending away from the fixed chamber;

[0008] The trigger handle is rotatably connected to the grip handle and includes a drive part that extends into the fixed chamber to provide drive for pushing and clamping the ligation clip under external force, and a gripping part located outside the fixed chamber.

[0009] The gripping portion and / or the holding portion have silicone covers.

[0010] In some embodiments of this utility model, the silicone cover includes a first cover fixed to the gripping portion and a second cover fixed to the holding portion.

[0011] In some embodiments of this utility model, the first cover and the second cover are respectively located on the side of the pressing part and the gripping part that are opposite to each other.

[0012] In some embodiments of this utility model, the grip handle and the trigger handle are a butt joint structure, and the first cover and the second cover respectively cover part of the joint surface of the pressing part and the gripping part.

[0013] In some embodiments of the present invention, the first cover and the second cover further have protrusions along their length direction that are perpendicular to the outer surface, and the protrusions are spaced out in multiple portions.

[0014] In some embodiments of this utility model, the silicone cover is configured to conform to its contact surface.

[0015] In some embodiments of this utility model, the pressing and holding parts are further provided with an embedding part for attaching the silicone cover, and the depth of the embedding part is the same as the thickness of the silicone cover.

[0016] In some embodiments of this utility model, the first cover and the second cover also have inwardly bent retaining edges on both sides in the width direction, and the retaining edges are in contact with the side walls of the pressing part or the gripping part.

[0017] In some embodiments of this utility model, the silicone cover is fixed by adhesive bonding or welding.

[0018] According to a first aspect of the present invention, a clamping device is provided, comprising a gripping structure as described in the first aspect.

[0019] The beneficial effects of this utility model are as follows: This utility model improves the anti-slip performance of the grip structure by covering the grip handle and trigger handle with a silicone cover; compared with the prior art, it improves the anti-slip performance of the grip structure, improves the grip comfort of doctors, reduces doctors' fatigue, makes doctors' work more precise, and reduces medical accidents caused by operational errors. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the clamping device in an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the gripping structure in an embodiment of the present invention;

[0023] Figure 3 This is an exploded view of the gripping structure in an embodiment of the present invention;

[0024] Figure 4 This is an exploded view of the gripping structure in another embodiment of the present invention.

[0025] Figure 5 As an embodiment of this utility model Figure 4 A partial enlarged view of point A in the middle;

[0026] Figure 6 As an embodiment of this utility model Figure 4 A magnified view of a section at point B in the middle.

[0027] Explanation of reference numerals in the attached drawings: 1. Grip handle; 11. Fixed chamber; 12. Grip part; 2. Trigger handle; 21. Drive part; 22. Pressing part; 22a. Embedded part; 3. Silicone cover; 31. First cover; 31a. Edge; 32. Second cover; 32a. Protrusion. Detailed Implementation

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] like Figures 1 to 6 The grip structure shown includes: a grip handle 1, a trigger handle 2, and a silicone cover 3;

[0032] The grip handle 1 includes a fixed chamber 11 located at the front end and a grip portion 12 extending away from the fixed chamber 11; here, the fixed chamber 11 being located at the front end means that the fixed chamber 11 is closer to the patient, and the grip portion 12 being closer to the doctor. When the doctor uses the grip structure, he holds the grip portion 12.

[0033] The trigger handle 2, rotatably connected to the grip handle 1, includes a drive part 21 with one end extending into the fixed chamber 11 to drive the pushing and clamping of the ligation clip under external force, and a gripping part 22 located outside the fixed chamber 11. The rotatable connection between the trigger handle 2 and the grip handle 1 can be exemplified by the following: a pivot is installed in either the grip handle 1 or the trigger handle 2, and the grip handle 1 rotates within the pivot of the trigger handle 2; or the trigger handle 2 rotates within the pivot of the grip handle 1. Figure 2 As shown, the trigger handle 2 rotates within the pivot of the grip handle 1. The rotational travel can be limited by setting a limiting structure such as a limiting block or a limiting groove within the pivot, or by using... Figure 2 As shown, a stop bar corresponding to the movement trajectory of the trigger handle 2 is set in the grip handle 1, and a T-shaped plate that cooperates with the stop bar is set for the trigger handle 2. When the T-shaped plate contacts the inner wall of the grip handle 1, the stroke of the trigger handle 2 stops. It should be noted that the pressure grip 22 is not limited to a curved structure, but can also be an ergonomic structure. For example, the shape of the pressure grip 22 is provided with a protruding part. The protruding part separates the doctor's fingers, which can improve the grip feel of the grip structure. At the same time, the doctor can hold the grip structure more firmly during use, which improves the anti-slip property of the grip structure. In terms of specific use, when the grip handle 1 and the trigger handle 2 are subjected to external force, the angle between them becomes smaller. As the trigger handle 2 moves towards the doctor, the drive unit 21 pushes towards the patient, thereby providing drive for the pushing and clamping of the ligation clip.

[0034] The gripping part 22 and / or the holding part 12 are provided with a silicone cover 3. It should be noted that the silicone cover can be provided only on the gripping part 22, only on the holding part 12, or on both the gripping part 22 and the holding part 23. Silicone is a soft and elastic material that conforms well to the doctor's palm and fingers. Providing the silicone cover 3 on the gripping part 22 and / or the holding part 12 improves the anti-slip performance of the grip structure. It should also be noted that the silicone cover 3 can be designed with different shapes and textures as needed to provide a better grip and feel. For example, designing recessed or raised textures on the gripping part 22 can guide the user's fingers to be placed correctly, improving the accuracy of the operation. Furthermore, the silicone cover 3 can be provided on the gripping part 22 and / or the holding part 12 by sleeve, embedding, or attaching to the surface of the gripping part 22 and / or the holding part 12.

[0035] This invention improves the anti-slip performance of the grip structure by covering the grip handle 1 and the trigger handle 2 with a silicone cover 3. Furthermore, the trigger handle 2 has a drive part 21 and a pressing part 22, which fixes the sleeve assembly of the clamping device and triggers the ligation clip inside the sleeve. Compared with the prior art, this invention improves the anti-slip performance of the grip structure and ensures the structural strength of the grip structure and the clamping device.

[0036] In some embodiments of this utility model, such as Figure 2-4 As shown, the silicone cover 3 includes a first cover 31 fixed to the grip portion 22 and a second cover 32 fixed to the grip portion 12. The first cover 31 is fixed to the grip portion 22 and contacts the physician's fingers, while the second cover 32 is fixed to the grip portion 12 and contacts the physician's palm. The main function of the first cover 31 and the second cover 32 is to provide comfort and improve anti-slip performance, ensuring that the user can stably grip the handle when applying pressure, preventing slippage or misoperation. It should be noted that the first cover 31 can be fixed to the grip portion 22, and the second cover 32 can be fixed to the grip portion 12 by adhesive, snap-fit, or screws.

[0037] In some embodiments of this utility model, such as Figure 2-4 As shown, the first cover 31 and the second cover 32 are respectively located on the surfaces of the gripping portion 22 and the holding portion 12 that are opposite to each other. By providing the first cover 31 and the second cover 32 only on the surfaces that come into contact with the physician, the manufacturing cost of the grip structure is reduced. At the same time, the first cover 31 and the second cover 32 directly contact the physician's hand, which helps to improve the operating feel and anti-slip performance, making the grip structure more ergonomic and reducing hand fatigue and discomfort.

[0038] In some embodiments of this utility model, such as Figure 4-5 As shown, the grip handle 1 and the trigger handle 2 are a butt-jointed structure. The first cover 31 and the second cover 32 respectively cover part of the joint surface of the pressure grip 22 and the grip 12. A detailed explanation of the joint is that the first cover 31 and the second cover 32 do not completely cover the pressure grip 22 and the grip 12 respectively. When the doctor's dominant hand is right-handed, the contact area between the palm and the right side of the grip 12 is larger, and the contact area between the fingers and the middle of the pressure grip 22 is larger. Therefore, the first cover 31 and the second cover 32 are provided on part of the joint surface of the pressure grip 22 and the grip 12 as needed. This can further improve the grip feel and anti-slip performance, while reducing costs. Similarly, in the pressure grip 22, the part that contacts the drive unit 21 can also be joined with the first cover 31 to improve the smoothness of the contact between the pressure grip 22 and the drive unit 21, reduce wear, and extend the service life of the grip structure.

[0039] In some embodiments of this utility model, such as Figure 5 As shown, the first cover 31 and the second cover 32 also have protrusions 32a along their length direction, which are perpendicular to the outer surface. Multiple protrusions 32a are spaced apart. The protrusions 32a are distributed at certain intervals on the first cover 31 and the second cover 32, increasing the friction between the first cover 31 and the second cover 32 and the hand, making the grip more stable and safe for the physician. It should be noted that the shape of the protrusions 32a is not limited here; they can be structures that conform to the shape of the fingers, or they can be... Figure 5 The gently sloping square structure shown in the image serves to increase friction between the hand and the skin.

[0040] In some embodiments of this utility model, such as Figure 2-5 As shown, the silicone cover 3 is contoured to its mating surface. This similarity in shape and contour ensures a tight fit between the silicone cover 3 and the mating surface, reducing gaps and voids. Furthermore, the higher degree of fit between the silicone cover 3 and the mating surface increases friction and interaction forces, enhancing the durability and wear resistance of the silicone cover 3. This also simplifies and simplifies the installation process.

[0041] In some embodiments of this utility model, such as Figure 5As shown, the gripping part 22 and the holding part 12 are also provided with an embedding part 22a for attaching the silicone cover 3. The depth of the embedding part 22a is the same as the thickness of the silicone cover 3. The presence of the embedding part 22a provides a precise attachment position for the silicone cover 3, and by precisely controlling the depth of the embedding part 22a, it can be ensured that there are no gaps or protrusions between the silicone cover 3 and the handle surface, thereby improving the fit and aesthetics. After the silicone cover 3 is embedded in the embedding part 22a, due to the restraining effect of the embedding part 22a, the silicone cover 3 is not easy to fall off or shift. Moreover, the design of the embedding part 22a simplifies the installation process of the silicone cover 3. During installation, the silicone cover 3 can be quickly and stably installed simply by accurately placing it into the embedding part 22a.

[0042] In some embodiments of this utility model, such as Figure 6 As shown, the first cover 31 and the second cover 32 also have inwardly bent retaining edges 31a on both sides in the width direction. The retaining edges 31a are in contact with the side walls of the gripping part 22 or the holding part 12. By bending inward, the retaining edges 31a are tightly attached to the side walls of the gripping part 22 or the holding part 12. This design increases the contact area and friction between the first cover 31 and the second cover 32 and the gripping part 22 and the holding part 12, respectively, thereby improving the connection stability between them. The presence of retaining edges 31a further prevents the first cover 31 and the second cover 32 from accidentally falling off or shifting during use.

[0043] In some embodiments of this utility model, such as Figure 3-5 As shown, the silicone cover 3 is fixed by adhesive bonding or welding. Adhesive bonding and welding are simple to operate and low in cost, while ensuring the connection stability and sealing of the silicone cover 3. Specific welding methods can be hot-press welding and silicone high-frequency welding.

[0044] This invention also provides a clamp applicator, including the aforementioned gripping structure. The gripping structure of the clamp applicator has anti-slip properties. During use, when the gripping handle 1 is held and the trigger handle 2 is pressed, the driving part 21 in the trigger handle 2 provides drive for the pushing and clamping of the ligation clip, thereby realizing the clamping function of the clamp applicator. This clamp applicator structure ensures structural stability while maintaining anti-slip properties, preventing errors by the physician during surgery.

[0045] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A gripping structure for securing a sleeve assembly of an applicator and triggering a ligation clip within the sleeve, characterized in that, The grip structure includes: A grip handle, the grip handle including a fixed chamber disposed at a front end and a grip portion extending away from the fixed chamber; The trigger handle is rotatably connected to the grip handle and includes a drive part that extends into the fixed chamber to provide drive for pushing and clamping the ligation clip under external force, and a gripping part located outside the fixed chamber. The gripping portion and / or the holding portion have silicone covers.

2. The gripping structure according to claim 1, characterized in that, The silicone cover includes a first cover fixed to the grip portion and a second cover fixed to the holding portion.

3. The gripping structure according to claim 2, characterized in that, The first cover and the second cover are respectively located on the side of the gripping part and the holding part that are opposite to each other.

4. The gripping structure according to claim 3, characterized in that, The grip handle and trigger handle are connected in a joint structure, with the first cover and the second cover covering part of the joint surface of the pressure grip and the gripping part, respectively.

5. The gripping structure according to claim 2, characterized in that, The first and second covers also have protrusions along their length direction that are perpendicular to the outer surface, and the protrusions are spaced out in multiples.

6. The gripping structure according to claim 2, characterized in that, The silicone cover is designed to conform to the shape of its contact surface.

7. The gripping structure according to claim 6, characterized in that, The pressing and holding parts are also provided with an embedding part for attaching the silicone cover, and the depth of the embedding part is the same as the thickness of the silicone cover.

8. The gripping structure according to claim 6, characterized in that, The first and second covers also have inwardly bent retaining edges on both sides in the width direction, and the retaining edges are in contact with the side walls of the gripping or holding part.

9. The gripping structure according to claim 1, characterized in that, The silicone cover is fixed by adhesive bonding or welding.

10. A clamp applicator, characterized in that, Includes the gripping structure as described in any one of claims 1 to 9.

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