Handle for laparoscopic electrocoagulation surgical instrument

Abstract

The utility model relates to a handle for a laparoscopic electrocoagulation surgical instrument, and belongs to the field of medical instruments. The locking device comprises a front handle and a rear handle, the rear handle is rotatably mounted on the front handle, the locking device is structurally characterized by further comprising a positioning mechanism and a locking mechanism, the locking mechanism is mounted on the front handle and matched with the positioning mechanism, the rear handle and the front handle are positioned through the positioning mechanism, the positioning mechanism comprises a positioning toothed plate, a positioning clamping plate, a positioning spring and a spring seat, and the positioning toothed plate is matched with the positioning clamping plate. The positioning toothed plate is fixed to the rear handle, the positioning clamping plate is rotationally installed on the front handle, the spring seat is fixed to the front handle, the two ends of the positioning spring abut against the spring seat and the positioning clamping plate respectively, the positioning clamping plate is matched with the positioning toothed plate, the locking mechanism comprises a locking wrench and a locking clamping block, and the locking wrench is rotationally installed on the front handle. The locking clamping block is installed on the front handle in a sliding mode, the locking clamping block is matched with the locking wrench, and the locking wrench is matched with the positioning clamping plate.

Description

Technical Field

[0001] The utility model relates to a handle for a laparoscopic electrocoagulation surgical instrument, belonging to the field of medical instruments. Background Art

[0002] Electrocoagulation hemostasis is a medical method that uses the thermal effect of high-frequency electric current to dehydrate and shrink the blood vessel wall, coagulate the blood in the blood vessel, and fuse the blood vessel and the blood clot into one, thereby achieving effective hemostasis. Electrocoagulation forceps are favored by laparoscopic surgeons because of their simple operation, fast coagulation, low price, wide application, and cost-effectiveness. At present, most of the handles of laparoscopic electrocoagulation surgical instruments do not have a locking function, that is, the locking control of the forceps head cannot be achieved when clamping the tissue. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a handle for a laparoscopic electrocoagulation surgical instrument with a reasonable structural design.

[0004] The technical solution adopted by the utility model to solve the above-mentioned problem is: the handle of the laparoscopic electrocoagulation surgical instrument includes a front handle and a rear handle, and the rear handle is rotatably mounted on the front handle. Its structural characteristics are: it also includes a positioning mechanism and a locking mechanism, the locking mechanism is mounted on the front handle, and the locking mechanism cooperates with the positioning mechanism, and the rear handle and the front handle are positioned by the positioning mechanism.

[0005] Furthermore, the positioning mechanism includes a positioning tooth plate, a positioning clamping plate, a positioning spring and a spring seat, the positioning tooth plate is fixed on the rear handle, the positioning clamping plate is rotatably mounted on the front handle, the spring seat is fixed on the front handle, the two ends of the positioning spring are respectively abutted against the spring seat and the positioning clamping plate, and the positioning clamping plate cooperates with the positioning tooth plate.

[0006] Furthermore, the locking mechanism includes a locking wrench and a locking block, the locking wrench is rotatably mounted on the front handle, the locking block is slidably mounted on the front handle, the locking block cooperates with the locking wrench, and the locking wrench cooperates with the positioning card plate.

[0007] Furthermore, a locking thrust block is respectively installed at both ends of the locking block.

[0008] Furthermore, the positioning tooth plate is provided with a positioning tooth groove, and the positioning clamping plate is provided with a positioning hook, and the positioning hook is clamped with the positioning tooth groove.

[0009] Furthermore, a positioning dial is provided on the positioning clamping plate, and the positioning dial cooperates with the locking mechanism.

[0010] Furthermore, a positioning boss is provided on the positioning clamping plate, and the positioning spring is sleeved outside the positioning boss.

[0011] Furthermore, the locking wrench is provided with a wrench handle and a wrench shift block, and the wrench shift block cooperates with the positioning clamping plate.

[0012] Furthermore, the locking wrench is provided with a wrench clamping block, the locking clamping block is provided with a clamping block boss, and the wrench clamping block cooperates with the clamping block boss.

[0013] Furthermore, a block cross bar is provided on the locking block, a block groove is formed between the block cross bar and the block boss, and the block groove cooperates with the wrench block.

[0014] Compared with the prior art, the utility model has the following advantages: when in use, the handle of the laparoscopic electrocoagulation surgical instrument can be used to lock or unlock the locking wrench by moving the position of the locking block, that is, when the forceps clamp the tissue, the position of the rear handle can be fixed relative to the front handle, and the locking wrench can be locked by the locking block to achieve the locking function. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the use state of the handle of the laparoscopic electrocoagulation surgical instrument according to an embodiment of the utility model.

[0016] Figure 2 It is a schematic diagram of the exploded structure of a handle of a laparoscopic electrocoagulation surgical instrument according to an embodiment of the utility model.

[0017] Figure 3 It is a schematic diagram of the internal structure of a handle of a laparoscopic electrocoagulation surgical instrument according to an embodiment of the utility model.

[0018] In the figure: front handle 1, rear handle 2, positioning mechanism 3, locking mechanism 4, clamp rod 5, clamp head 6,

[0019] Positioning tooth plate 31, positioning clamping plate 32, positioning spring 33, spring seat 34,

[0020] Locking wrench 41, locking block 42, locking push block 43,

[0021] Positioning tooth groove 311,

[0022] Positioning hook 321, positioning dial head 322, positioning boss 323,

[0023] wrench handle 411, wrench shift block 412, wrench clamp block 413,

[0024] The clamping block boss 421 , the clamping block groove 422 , and the clamping block cross bar 423 . DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0026] Example

[0027] See also Figures 1 to 3 As shown, it should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, if there are references to terms such as "upper", "lower", "left", "right", "middle" and "one" in this specification, they are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship, without substantially changing the technical content, should also be regarded as the scope of the implementation of the utility model.

[0028] The handle for the laparoscopic electrocoagulation surgical instrument in this embodiment includes a front handle 1, a rear handle 2, a positioning mechanism 3 and a locking mechanism 4. The rear handle 2 is rotatably mounted on the front handle 1, and the locking mechanism 4 is mounted on the front handle 1, and the locking mechanism 4 cooperates with the positioning mechanism 3. The rear handle 2 and the front handle 1 are positioned by the positioning mechanism 3. The front handle 1 is connected to one end of a clamp rod 5, and the other end of the clamp rod 5 is connected to a clamp head 6.

[0029] The positioning mechanism 3 in this embodiment includes a positioning tooth plate 31, a positioning clamping plate 32, a positioning spring 33 and a spring seat 34. The positioning tooth plate 31 is fixed on the rear handle 2, the positioning clamping plate 32 is rotatably mounted on the front handle 1, the spring seat 34 is fixed on the front handle 1, and the two ends of the positioning spring 33 are respectively abutted against the spring seat 34 and the positioning clamping plate 32, and the positioning clamping plate 32 cooperates with the positioning tooth plate 31.

[0030] The locking mechanism 4 in this embodiment includes a locking wrench 41 and a locking block 42. The locking wrench 41 is rotatably mounted on the front handle 1, and the locking block 42 is slidably mounted on the front handle 1. The locking block 42 cooperates with the locking wrench 41, and the locking wrench 41 cooperates with the positioning card plate 32. A locking thrust block 43 is installed at each end of the locking block 42.

[0031] In this embodiment, a positioning tooth groove 311 is provided on the positioning tooth plate 31, and a positioning hook 321, a positioning dial head 322 and a positioning boss 323 are provided on the positioning clamping plate 32. The positioning hook 321 is engaged with the positioning tooth groove 311, the positioning dial head 322 cooperates with the locking mechanism 4, and the positioning spring 33 is sleeved outside the positioning boss 323.

[0032] The locking wrench 41 in this embodiment is provided with a wrench handle 411, a wrench shift block 412 and a wrench clamping block 413. The wrench shift block 412 cooperates with the positioning clamping plate 32. The locking clamping block 42 is provided with a clamping block boss 421 and a clamping block cross bar 423. The wrench clamping block 413 cooperates with the clamping block boss 421. A clamping block groove 422 is formed between the clamping block cross bar 423 and the clamping block boss 421, and the clamping block groove 422 cooperates with the wrench clamping block 413.

[0033] Specifically, when the handle of the laparoscopic electrocoagulation surgical instrument is in use, the locking push block 43 can be moved to make the positioning clamping plate 32 in the rear position, that is, the wrench clamping block 413 is in front of the clamping block boss 421. Figure 3 As shown, it is in the unlocked state at this time, and the opening and closing of the pliers head 6 can be controlled by the rear handle 2. When the rear handle 2 is pressed, the pliers head 6 can clamp the tissue, and under the action of the positioning spring 33, the positioning tooth groove 311 and the positioning hook 321 are engaged to realize the positioning of the pliers head 6 when clamping the tissue; in the unlocked state, the wrench handle 411 is pressed to make the wrench block 412 contact with the positioning dial head 322, and the positioning clamp plate 32 can be rotated at this time. When the positioning clamp plate 32 rotates, the positioning hook 321 can be disengaged from the positioning tooth groove 311, and the opening of the pliers head 6 can be controlled by the rear handle 2.

[0034] By moving the locking thrust block 43, the positioning clamping plate 32 is in the rear position, that is, the wrench clamping block 413 is in front of the clamping block boss 421. Figure 3 As shown, it is in the unlocked state at this time. The opening and closing of the pliers head 6 can be controlled by the rear handle 2. When the rear handle 2 is pressed, the pliers head 6 can clamp the tissue. Under the action of the positioning spring 33, the positioning tooth groove 311 is engaged with the positioning hook 321 to realize the positioning of the pliers head 6 when clamping the tissue; when the pliers head 6 clamps the tissue, the locking push block 43 is moved to make the positioning clamp plate 32 in the front position, that is, the wrench clamp block 413 is clamped into the clamp groove 422 between the clamp block boss 421 and the clamp cross bar 423 (not shown in the figure), and it is in the locked state at this time. Since the locking wrench 41 is clamped by the locking clamp block 42, the positioning clamp plate 32 and the positioning tooth plate 31 are also clamped to realize the locking of the pliers head 6.

[0035] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different, and the above content described in this specification is only an example of the structure of the utility model. All equivalent changes or simple changes made based on the structure, features and principles described in the patent concept of the utility model are included in the protection scope of the utility model patent. Technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.

Claims

1. A handle for a laparoscopic electrocoagulation surgical instrument, comprising a front handle (1) and a rear handle (2), wherein the rear handle (2) is rotatably mounted on the front handle (1), and characterized in that: It also comprises a positioning mechanism (3) and a locking mechanism (4), wherein the locking mechanism (4) is mounted on the front handle (1), and the locking mechanism (4) cooperates with the positioning mechanism (3), and the rear handle (2) and the front handle (1) are positioned via the positioning mechanism (3).

2. The handle for laparoscopic electrocoagulation surgical instrument according to claim 1, characterized in that: The positioning mechanism (3) comprises a positioning tooth plate (31), a positioning clamping plate (32), a positioning spring (33) and a spring seat (34); the positioning tooth plate (31) is fixed on the rear handle (2); the positioning clamping plate (32) is rotatably mounted on the front handle (1); the spring seat (34) is fixed on the front handle (1); two ends of the positioning spring (33) are respectively in contact with the spring seat (34) and the positioning clamping plate (32); and the positioning clamping plate (32) cooperates with the positioning tooth plate (31).

3. The handle for laparoscopic electrocoagulation surgical instrument according to claim 1, characterized in that: The locking mechanism (4) comprises a locking wrench (41) and a locking clamp (42); the locking wrench (41) is rotatably mounted on the front handle (1); the locking clamp (42) is slidably mounted on the front handle (1); the locking clamp (42) cooperates with the locking wrench (41); and the locking wrench (41) cooperates with the positioning clamp (32).

4. The handle for laparoscopic electrocoagulation surgical instrument according to claim 3, characterized in that: A locking thrust block (43) is respectively installed at both ends of the locking clamping block (42).

5. The handle for laparoscopic electrocoagulation surgical instrument according to claim 2, characterized in that: The positioning tooth plate (31) is provided with a positioning tooth groove (311), and the positioning clamping plate (32) is provided with a positioning hook (321), and the positioning hook (321) is clamped with the positioning tooth groove (311).

6. The handle for laparoscopic electrocoagulation surgical instrument according to claim 5, characterized in that: A positioning dial head (322) is provided on the positioning clamping plate (32), and the positioning dial head (322) cooperates with the locking mechanism (4).

7. The handle for the laparoscopic electrocoagulation surgical instrument according to claim 6, characterized in that: A positioning boss (323) is provided on the positioning clamping plate (32), and the positioning spring (33) is sleeved outside the positioning boss (323).

8. The handle for laparoscopic electrocoagulation surgical instrument according to claim 3, characterized in that: The locking wrench (41) is provided with a wrench handle (411) and a wrench shift block (412), and the wrench shift block (412) cooperates with the positioning clamping plate (32).

9. The handle for the laparoscopic electrocoagulation surgical instrument according to claim 8, characterized in that: The locking wrench (41) is provided with a wrench clamping block (413), the locking clamping block (42) is provided with a clamping block boss (421), and the wrench clamping block (413) cooperates with the clamping block boss (421).

10. The handle for laparoscopic electrocoagulation surgical instrument according to claim 9, characterized in that: The locking block (42) is provided with a block cross bar (423), a block groove (422) is formed between the block cross bar (423) and the block boss (421), and the block groove (422) cooperates with the wrench block (413).

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