A structure of a head of a titanium clamp clamp forceps

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, especially relates to a head structure of continuous titanium clamp forceps. The utility model provides a head structure of continuous titanium clamp forceps in view of the problem of the prior art that cannot be applied to the small size of the head structure, including head assembly, sliding sleeve and fixed base, the sliding sleeve is connected on the fixed base, the head assembly is located between the sliding sleeve and the fixed base, the head assembly includes two opposite base, the base is fixedly provided with the contraction wing, the side surface of contraction wing is extrusion inclined plane, the distance between two extrusion inclined planes gradually increases from one end close to the sliding sleeve to the other end, the sliding sleeve is arranged on the extrusion inclined plane. The utility model adopts the multilayer structure design of setting contraction wing on the base, so that in the small size of continuous titanium clamp forceps, the strength of the head can be guaranteed, and the head can be reset automatically, and the head can be closed in place.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and in particular relates to the head structure of a continuous-fire titanium clip. Background Technology

[0002] In general medical surgery, to avoid increasing the difficulty of the operation due to excessive bleeding or ruptured blood vessels in the target organ, the blood vessels connected to the target organ are first ligated with titanium clips to stop the bleeding. The instrument used is a repeating titanium clip forceps. The repeating titanium clip forceps work by first inserting the forceps into the body, then encircling the blood vessel with titanium clips, and applying external force to clamp the clips tightly to achieve hemostasis.

[0003] The jaw structure of existing rapid-fire titanium pliers, such as Figure 1-2 As shown, the pliers include a pliers head assembly 1, a sliding sleeve 2, and a fixed base 3. The pliers head assembly 1 has a beveled side. The sliding sleeve 2 slides and squeezes the pliers head assembly 1 by the beveled surface to close the pliers head assembly 1. After the external force is removed, the pliers head assembly 1 resets under its own elastic force.

[0004] However, when the instrument needs to pass through a trocar with a smaller inner diameter, such as a 5mm trocar, the small overall size of the forceps head can cause problems at the root of the bevel. Figure 2 At position T shown, the thickness is extremely small, with an actual size of less than 0.5 mm. This results in the pliers assembly 1 not being able to return to its initial state well after closing. In other words, the structure used in the prior art is not suitable for pliers structures with smaller dimensions. Utility Model Content

[0005] The purpose of this invention is to address the above-mentioned problems by providing a pliers head structure for a continuous-fire titanium clip.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A plier head structure for a repeating titanium pliers includes a plier head assembly, a sliding sleeve, and a fixed base. The sliding sleeve is slidably connected to the fixed base, and the plier head assembly is located between the sliding sleeve and the fixed base. The plier head assembly includes two opposing bases, on which retractable wings are fixedly disposed. The sides of the retractable wings are extrusion slopes, and the distance between the two extrusion slopes gradually increases from one end closer to the sliding sleeve to the other end. The sliding sleeve is pressed against the extrusion slopes.

[0008] In the aforementioned type of rapid-fire titanium clip head structure, the total thickness of the base and the retractable wing is 1.2 mm or more.

[0009] In the aforementioned type of repeating titanium clip pliers head structure, the width of the base is 0.9 mm or more.

[0010] In the above-mentioned pliers head structure of a series-fire titanium pliers, the sliding sleeve includes a housing with a clearance cavity inside. Each end of the housing is provided with a sliding surface, which slides against the fixed base. The sliding housing allows the pliers head assembly to pass through the clearance cavity.

[0011] In the above-mentioned clamp head structure of a series-fire titanium clamp, a pressing strip is also fixedly provided on the inner surface of the housing. The pressing strip is stepped and one side of the pressing strip is pressed on the base, while the other side is pressed on the pressing inclined surface.

[0012] In the above-mentioned clamp head structure of a series of titanium clips, the end of the retractable wing has a limiting protrusion, the end of the extrusion bar has a limiting protrusion protruding along the side, and the sliding housing can press the limiting protrusion onto the limiting protrusion.

[0013] In the above-mentioned clamp head structure of a series of titanium clips, an arc-shaped groove is formed between the limiting protrusion and the retractable wing, the surface of the limiting protrusion has an arc-shaped protrusion, and when the limiting protrusion is pressed against the limiting protrusion, the arc-shaped protrusion is embedded in the arc-shaped groove.

[0014] In the above-mentioned clamp head structure of a series-fire titanium clip, the sliding sleeve further includes a guide block fixedly connected to the housing, the side of the guide block has a guide groove recessed into the guide block, and the fixing seat is fitted into the guide groove.

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] 1. This utility model adopts a multi-layer structure design with retractable wings on the base, which ensures the strength of the pliers head, automatic reset, and full closure of the pliers head in a small-sized continuous firing titanium pliers.

[0017] 2. This utility model makes minimal changes to the pliers head structure in the prior art, has a simple structure, is easy to assemble, and is suitable for large-scale promotion and use. Attached Figure Description

[0018] Figure 1 This is a structural diagram of existing technology;

[0019] Figure 2 This is a cross-sectional view of the prior art;

[0020] Figure 3 This is a schematic diagram of the structure of this utility model;

[0021] Figure 4 This is an exploded view of this utility model;

[0022] Figure 5 This is a schematic diagram of the sliding sleeve structure;

[0023] In the figure: 1. Pliers head assembly, 2. Sliding sleeve, 3. Fixing seat, 11. Base, 12. Retracting wing, 13. Extrusion slope, 14. Limiting protrusion, 15. Arc groove, 21. Housing, 22. Relief cavity, 23. Sliding surface, 24. Extrusion strip, 25. Limiting protrusion, 26. Arc protrusion, 27. Guide block, 28. Guide groove. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 3 As shown, a pliers head structure for a series of titanium pliers includes a pliers head assembly 1, a sliding sleeve 2, and a fixed base 3. The sliding sleeve 2 is slidably connected to the fixed base 3. The pliers head assembly 1 is located between the sliding sleeve 2 and the fixed base 3. The pliers head assembly 1 includes two opposing bases 11. A retractable wing 12 is fixedly disposed on the base 11. The side of the retractable wing 12 is a compression slope 13. The distance between the two compression slopes 13 gradually increases from the end closer to the sliding sleeve 2 to the other end. The sliding sleeve 2 is pressed against the compression slope 13.

[0026] In this invention, the sliding sleeve 2 is moved to press against the compression ramp 13 on the side of the retractable wing 12. Since the distance between the two compression ramps 13 gradually increases from the end closest to the sliding sleeve 2 to the other, forming a figure-eight shape, the sliding sleeve 2 compresses the two retractable wings 12 closer together during movement, thereby causing the two bases 11 to move closer together to complete the closure of the jaws. When resetting is required, the external force is removed, and the two bases 11 can return to their original position due to the elasticity of the material itself. Therefore, this invention adopts a multi-layered structure design with retractable wings 12 on the bases 11, ensuring both the strength of the jaws and automatic resetting, as well as the ability to close the jaws completely in a small-sized continuous-fire titanium pliers.

[0027] Preferably, the total thickness of the base 11 and the retractable wing 12 is 1.2 mm or more, and the width of the base 11 is 0.9 mm or more. This further ensures the strength of the pliers head, allowing it to automatically return to its initial position after closing.

[0028] Combination Figure 4 and Figure 5As shown, the sliding sleeve 2 includes a housing 21, which has a clearance cavity 22. Each end of the housing 21 has a sliding surface 23, which slidably fits against the fixed base 3. The sliding housing 21 allows the clamping head assembly 1 to pass through the clearance cavity 22. An extrusion strip 24 is also fixedly provided on the inner surface of the housing 21. The extrusion strip 24 is stepped, with one side pressing against the base 11 and the other side pressing against the extrusion inclined surface 13. The stepped extrusion strip 24, simultaneously fitting against both the base 11 and the extrusion inclined surface 13, can simultaneously position the housing 21 in both the vertical and horizontal directions.

[0029] Preferably, the end of the retractable wing 12 has a limiting protrusion 14, and the end of the extrusion bar 24 has a limiting protrusion 25 protruding along its side. The sliding housing 21 allows the limiting protrusion 25 to press against the limiting protrusion 14. The limiting protrusion 25 and the limiting protrusion 14 cooperate to prevent the housing 21 from completely dislodging from the retractable wing 12 during movement, facilitating the next clamping operation.

[0030] More preferably, an arc-shaped groove 15 is formed between the limiting protrusion 14 and the retractable wing 12, and the surface of the limiting protrusion 25 has an arc-shaped protrusion 26. When the limiting protrusion 25 is pressed against the limiting protrusion 14, the arc-shaped protrusion 26 is embedded in the arc-shaped groove 15. The mutual cooperation between the arc-shaped protrusion 26 and the arc-shaped groove 15 facilitates the operation of the mechanism and prevents physical interference between components during movement.

[0031] like Figure 5 As shown, the sliding sleeve 2 also includes a guide block 27 fixedly connected to the housing 21. The guide block 27 has a guide groove 28 recessed into its side, and the fixed seat 3 is fitted into the guide groove 28. This guiding method not only guides the sliding sleeve 2 in the front-to-back direction but also limits its vertical movement, preventing it from detaching from the fixed seat 3 during movement.

[0032] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0033] Although this document frequently uses terms such as clamp assembly 1, sliding sleeve 2, fixing seat 3, base 11, retractable wing 12, extrusion bevel 13, limiting protrusion 14, arc-shaped groove 15, shell 21, clearance cavity 22, sliding surface 23, extrusion strip 24, limiting protrusion 25, arc-shaped protrusion 26, guide block 27, and guide groove 28, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A pliers head structure for a series-fire titanium clip, comprising a pliers head assembly (1), a sliding sleeve (2), and a fixed base (3), wherein the sliding sleeve (2) is slidably connected to the fixed base (3), and the pliers head assembly (1) is located between the sliding sleeve (2) and the fixed base (3), characterized in that: The clamp head assembly (1) includes two opposing bases (11), on which a retractable wing (12) is fixedly mounted. The side of the retractable wing (12) is a pressing slope (13). The distance between the two pressing slopes (13) gradually increases from one end closer to the sliding sleeve (2) to the other end. The sliding sleeve (2) is pressed onto the pressing slope (13).

2. The jaw structure of a repeating titanium pliers as described in claim 1, characterized in that: The total thickness of the base (11) and the retractable wing (12) is more than 1.2 mm.

3. The head structure of the repeating titanium pliers as described in claim 1, characterized in that: The width of the base (11) is 0.9 mm or more.

4. The pliers head structure of a repeating titanium pliers as described in claim 1, characterized in that: The sliding sleeve (2) includes a housing (21) with a clearance cavity (22) inside. Each end of the housing (21) is provided with a sliding surface (23). The sliding surface (23) slides against the fixed seat (3). The sliding housing (21) allows the pliers assembly (1) to pass through the clearance cavity (22).

5. The head structure of a repeating titanium pliers as described in claim 4, characterized in that: An extrusion strip (24) is also fixedly provided on the inner surface of the housing (21). The extrusion strip (24) is stepped and one side of the extrusion strip (24) is pressed on the base (11), and the other side is pressed on the extrusion slope (13).

6. The head structure of a repeating titanium pliers as described in claim 5, characterized in that: The end of the retractable wing (12) has a limiting protrusion (14), and the end of the extrusion bar (24) has a limiting protrusion (25) protruding along the side. The sliding housing (21) can press the limiting protrusion (25) onto the limiting protrusion (14).

7. The jaw structure of a repeating titanium pliers as described in claim 6, characterized in that: An arc-shaped groove (15) is formed between the limiting protrusion (14) and the retractable wing (12). The surface of the limiting protrusion (25) has an arc-shaped protrusion (26). When the limiting protrusion (25) is pressed on the limiting protrusion (14), the arc-shaped protrusion (26) is embedded in the arc-shaped groove (15).

8. The head structure of a repeating titanium pliers as described in claim 4, characterized in that: The sliding sleeve (2) also includes a guide block (27) fixedly connected to the housing (21). The guide block (27) has a guide groove (28) recessed into the guide block (27) on its side, and the fixing seat (3) is fitted into the guide groove (28).

Images