Hemostatic forceps

Abstract

The utility model relates to the technical field of medical treatment, in particular to haemostatic forceps which comprise a first forceps rod and a second forceps rod, the first forceps rod is rotatably connected with the second forceps rod, forceps heads are fixedly connected to the first forceps rod and the second forceps rod, a first clamping piece is fixedly connected to the first forceps rod, a fixing block is fixedly connected to the second forceps rod, and a second clamping piece is fixedly connected to the second forceps rod. A threaded column is connected to the fixing block in a threaded penetrating mode, a second clamping piece is rotationally connected to the threaded column through a bearing, and the second clamping piece is limited through a limiting mechanism. According to the hemostatic forceps, the situation that the normal use of the hemostatic forceps is affected due to the fact that the clamping and locking force is reduced is prevented.

Description

Technical Field

[0001] This utility model relates to the field of medical technology, and in particular to a hemostatic forceps. Background Technology

[0002] A hemostat is a surgical instrument used to clamp blood vessels to stop bleeding. In cases of bleeding, after administering hemostatic drugs, hemostats are used to clamp the major arteries to prevent further bleeding. When the hemostat closes to stop the bleeding, the locking mechanism engages, preventing the hemostat from loosening due to hand slippage and ensuring effective hemostasis. However, to loosen the hemostat further, considerable force is required. Over time, wear and tear on the locking mechanism can cause it to become smooth, reducing surface roughness and thus affecting the locking force when the hemostat closes. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies where prolonged use leads to wear on the locking components, resulting in a smooth surface and reduced surface roughness, which in turn affects the locking force of the hemostat when closed. Therefore, this invention proposes a new type of hemostat.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] Design a hemostatic forceps, including a first forceps bar and a second forceps bar, which are rotatably connected. A forceps head is fixedly connected to both the first and second forceps bars. A first engaging member is fixedly connected to the first forceps bar, and a fixing block is fixedly connected to the second forceps bar. A threaded post is threaded through the fixing block, and a second engaging member is rotatably connected to the threaded post via a bearing. The second engaging member is limited by a limiting mechanism.

[0006] Preferably, the bearing is a thrust ball bearing.

[0007] Preferably, the limiting mechanism includes a limiting post, which is fixedly connected to the second engaging member and passes through the fixing block.

[0008] Preferably, a rotating block is fixedly connected to the threaded column.

[0009] Preferably, a limiting sleeve is fixedly connected to the fixing block, and an abutting rod is provided inside the limiting sleeve. One end of the abutting rod abuts against the threaded post, and the other end is fixedly connected to a spring. A connecting ear is fixedly connected to the spring, and the connecting ear is fixedly connected to the second clamp rod. A handle is fixedly connected to the abutting rod.

[0010] Preferably, a stop block is fixedly connected to the fixed block.

[0011] Preferably, a limiting groove is formed inside the limiting sleeve, and a limiting ridge is slidably provided inside the limiting groove, with the limiting ridge fixedly connected to the abutment rod.

[0012] The hemostat proposed in this utility model has the following advantages: when wear causes a decrease in locking force, rotating the threaded column drives the second engaging member to move, thereby increasing the pressure of the second engaging member against the first engaging member, ensuring friction, and preventing the situation where the locking force decreases and affects the normal use of the hemostat. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a hemostat proposed in this utility model;

[0014] Figure 2 This is a perspective view of a hemostat proposed in this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the second engaging part of a hemostatic forceps according to the present invention;

[0016] Figure 4 A hemostatic forceps proposed in this utility model Figure 1 Enlarged view of section A.

[0017] In the diagram: 1. First clamping bar; 2. Second clamping bar; 3. First locking component; 4. Second locking component; 5. Fixing block; 6. Limiting post; 7. Rotating block; 8. Bearing; 9. Connecting lug; 10. Abutment rod; 11. Threaded post; 12. Stop block; 13. Handle; 14. Spring; 15. Limiting sleeve; 16. Limiting ridge; 17. Clamping head. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Example 1: Refer to Figure 1-4A hemostat includes a first clamp 1 and a second clamp 2, which are rotatably connected. A clamp head 17 is fixedly connected to both the first clamp 1 and the second clamp 2. A first engaging member 3 is fixedly connected to the first clamp 1, and a fixing block 5 is fixedly connected to the second clamp 2. A threaded post 11 is threaded through the fixing block 5. A second engaging member 4 is rotatably connected to the threaded post 11 via a bearing 8. The second engaging member 4 is limited by a limiting mechanism. When the hemostat is closed, the second engaging member 4 engages with the first engaging member 3, achieving a locking effect. The locking effect is mainly achieved through the friction between the two engaging members. Since friction and its coefficient are related to pressure, when wear causes a decrease in locking force, rotating the threaded post 11 moves the second engaging member 4, increasing the pressure of the second engaging member 4 against the first engaging member 3. This ensures friction and prevents a decrease in locking force, which could affect the normal use of the hemostat.

[0020] Bearing 8 is a thrust ball bearing, used to handle axial force loads.

[0021] The limiting mechanism includes a limiting post 6, which is fixedly connected to the second locking member 4. The limiting post 6 passes through the fixing block 5. By using the limiting post 6, the second locking member 4 is limited, preventing the second locking member 4 from rotating when the position of the second locking member 4 is adjusted.

[0022] A rotating block 7 is fixedly connected to the threaded column 11 for gripping.

[0023] Example 2: Refer to Figure 1-4 In another preferred embodiment of this utility model, based on embodiment 1, a limiting sleeve 15 is fixedly connected to the fixing block 5. An abutting rod 10 is provided inside the limiting sleeve 15. One end of the abutting rod 10 abuts against the threaded post 11, and the other end is fixedly connected to a spring 14. A connecting ear 9 is fixedly connected to the spring 14. The connecting ear 9 is fixedly connected to the second clamp rod 2. A handle 13 is fixedly connected to the abutting rod 10. The spring 14 is in a compressed state. By using the restoring force of the spring 14, the abutting rod 10 will abut and fix the threaded post 11, preventing the threaded post 11 from rotating during use and changing the locking degree of the hemostat.

[0024] A stop block 12 is fixedly connected to the fixed block 5. The stop block 12 limits the spring 14 so that when the handle 13 is moved and the abutment rod 10 is moved, the spring 14 is kept within the elastic limit, preventing excessive compression that could damage the spring 14.

[0025] When wear causes a decrease in locking force and adjustment is required, pull the handle 13 to move the abutment rod 10, releasing the limit on the threaded post 11. Then close the hemostat, rotate the threaded post 11, and move the second locking member 4 to increase the pressure of the second locking member 4 against the first locking member 3, ensuring friction and thus ensuring the locking force. After adjustment, release the handle 13, and the abutment rod 10 will fix the threaded post 11 again, completing the adjustment of the locking force.

[0026] Example 3: Reference Figure 3-4 As another preferred embodiment of this utility model, based on embodiment 2, a limiting groove is provided in the limiting sleeve 15, and a limiting ridge 16 is slidably provided in the limiting groove. The limiting ridge 16 is fixedly connected to the abutment rod 10. By using the limiting ridge 16 and the limiting groove to limit the abutment rod 10, the rotation of the abutment rod 10 is prevented, thereby ensuring the fixing effect of both ends of the spring 14.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A haemostatic forceps comprising a first forceps shaft (1) and a second forceps shaft (2), characterized in that, The first clamp rod (1) is rotationally connected with the second clamp rod (2), the first clamp rod (1) and the second clamp rod (2) are fixedly connected with clamp heads (17), the first clamp rod (1) is fixedly connected with a first clamping piece (3), the second clamp rod (2) is fixedly connected with a fixed block (5), the fixed block (5) is threadedly connected with a threaded column (11), the threaded column (11) is rotationally connected with a second clamping piece (4) through a bearing (8), and the second clamping piece (4) is limited by a limiting mechanism.

2. A haemostatic forceps according to claim 1, characterised in that The bearing (8) is a thrust ball bearing.

3. A haemostatic forceps according to claim 1, wherein, The limiting mechanism comprises a limiting column (6), the limiting column (6) is fixedly connected to the second clamping piece (4), and the limiting column (6) penetrates the fixed block (5).

4. A haemostatic forceps according to claim 1, wherein, The threaded column (11) is fixedly connected with a rotating block (7).

5. A haemostatic forceps according to any one of claims 1 to 4, wherein, The fixed block (5) is fixedly connected with a limiting sleeve (15), an abutting rod (10) is arranged in the limiting sleeve (15), one end of the abutting rod (10) is in abutment with the threaded column (11), the other end of the abutting rod (10) is fixedly connected with a spring (14), the spring (14) is fixedly connected with a connecting lug (9), the connecting lug (9) is fixedly connected with the second clamp rod (2), and a handle (13) is fixedly connected to the abutting rod (10).

6. A haemostatic forceps according to claim 5, wherein, The fixed block (5) is fixedly connected with a stop block (12).

7. A haemostatic forceps according to claim 5, wherein, A limiting groove is formed in the limiting sleeve (15), a limiting edge (16) is slidably arranged in the limiting groove, and the limiting edge (16) is fixedly connected to the abutting rod (10).

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