Disposable endoscope operating forceps

Abstract

The utility model discloses disposable endoscope operating forceps which comprise a fixed handle and a movable handle, the movable handle is provided with a buckle hole, the buckle hole is provided with an L-shaped installation groove, a ball head buckle is installed in the buckle hole, a forceps rod assembly is installed in the ball head buckle, and the forceps rod assembly is provided with an L-shaped installation groove. A fixed handle sleeve is mounted at the joint of the forceps rod component and the fixed handle; an external thread is arranged at the upper end of the fixed handle, the external thread and an internal thread on the fixed handle sleeve are installed in a matched mode, a check ring is arranged in the fixed handle sleeve, and the check ring is clamped into the forceps rod seat. The utility model has the advantages of simple structure, adjustable tong head direction and high reliability.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and particularly relates to a disposable endoscopic surgical forceps. Background Art

[0002] With the implementation and wide application of endoscopic surgery in China for many years, disposable endoscopic surgical instruments have begun to appear in China. In recent years, endoscopic surgery has developed rapidly and is widely used clinically. At the same time, the surgical instruments supporting it have also begun to diversify.

[0003] Due to the fine and complex structure of reusable endoscopic surgical instruments, there are many limitations and great difficulties in cleaning and sterilization. When reused after incomplete disinfection and cleaning, it is easy to cause cross-infection, and repeated use is likely to make the instruments unreliable, such as loose screws, etc., which brings great risks to the surgery.

[0004] Existing disposable surgical forceps, such as the detachable disposable surgical forceps with the Chinese patent application number 200720191453.2, disclose that the forceps head, pull rod, forceps rod and forceps rod sheath of the surgical forceps are designed as an integral structure. A forceps rod seat is provided at the rear end of the forceps rod, and a turntable is pressed on the rear end face of the forceps rod seat. However, the direction of the forceps head of this surgical forceps cannot be adjusted arbitrarily, and its reliability is not high, and the pull rod seat is easily broken. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a disposable endoscopic surgical forceps, which has the advantages of simple structure, adjustable forceps head direction and high reliability.

[0006] The technical solution of the utility model: A disposable endoscopic surgical forceps includes a fixed handle and a movable handle. A buckle hole is provided on the movable handle, and an L-shaped installation groove is provided on the buckle hole. A ball head buckle is installed in the buckle hole, and a forceps rod assembly is installed in the ball head buckle. A fixed handle sleeve is installed at the connection between the forceps rod assembly and the fixed handle; an external thread is provided at the upper end of the fixed handle, and the external thread is cooperatively installed with the internal thread on the fixed handle sleeve. A retaining ring is provided in the fixed handle sleeve, and the retaining ring is snapped onto the forceps rod seat.

[0007] In the aforementioned disposable endoscopic surgical forceps, in order to enable the forceps rod assembly to drive the forceps head assembly to work, the ball head buckle includes a cylindrical body. A U-shaped groove is provided on the cylindrical body, and concave and convex teeth are provided on the upper and lower surfaces of the U-shaped groove. The concave and convex teeth form a ball head card slot, and a forceps rod ball head is installed in the ball head card slot. When the movable handle swings, it drives the ball head buckle to move back and forth. The ball head buckle drives the central rod of the forceps rod assembly to move back and forth, and the central rod drives the forceps head to open and close. The forceps rod ball head can rotate and fine-tune in the ball head buckle, and the ball head buckle can rotate and fine-tune in the movable handle, so as to jointly ensure the reliability of the forceps head work.

[0008] In the aforementioned disposable endoscopic surgical forceps, the forceps rod assembly includes a central rod. One end of the central rod is fixedly connected to a rotating ball head, and the other end is connected to the forceps head assembly. An outer tube is sleeved outside the central rod. One end of the outer tube is fixedly connected to the forceps rod seat, and the other end is connected to the forceps head assembly.

[0009] In the aforementioned disposable endoscopic surgical forceps, the forceps head assembly includes an upper forceps head and a lower forceps head. One side of the tails of the upper forceps head and the lower forceps head is hinged to the outer tube, and the other side of the tails is respectively hinged to the central rod through connecting pieces.

[0010] In the aforementioned disposable endoscopic surgical forceps, the fixed handle and the movable handle are vertical handles, which are suitable for urological surgery.

[0011] In the aforementioned disposable endoscopic surgical forceps, the fixed handle and the movable handle are horizontal handles, which are suitable for hysteroscopic surgery.

[0012] Compared with the prior art, the utility model is provided with a ball head buckle. The direction of the forceps head is adjusted by rotating the forceps rod assembly in the ball head buckle, which is very convenient and practical.

[0013] Furthermore, the movable handle is provided with an L-shaped mounting groove and a buckle groove, which has a simple structure and is convenient for the quick installation of the forceps rod assembly, improving the assembly speed.

[0014] Furthermore, a retaining ring is provided at the connection between the fixed handle and the fixed handle sleeve, increasing the reliability of the instrument.

[0015] In summary, the utility model is ingeniously designed and has the advantages of simple structure, adjustable forceps head direction, and high reliability. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the utility model;

[0017] Figure 2 is a schematic internal structural diagram of the utility model;

[0018] Figure 3 is a schematic structural diagram of the movable handle of the utility model;

[0019] Figure 4 is a schematic structural diagram of the ball head buckle of the utility model;

[0020] Figure 5 is a schematic structural diagram of Embodiment 2 of the utility model.

[0021] The markings in the attached drawings are as follows: 1, fixed handle; 2, movable handle; 21, snap hole; 22, L-shaped mounting groove; 3, ball head snap; 31, U-shaped groove; 32, concave-convex teeth; 33, ball head snap groove; 34, cylindrical body; 4, forceps rod assembly; 41, central rod; 42, outer tube; 43, rotating ball head; 44, forceps rod seat; 5, fixed handle sleeve; 6, forceps head assembly; 7, retaining ring. Detailed implementation mode

[0022] The technical solution of the present invention will be further specifically described below through embodiments in conjunction with the attached drawings, but it shall not be used as a basis for limiting the present utility model.

[0023] Embodiment 1

[0024] A disposable endoscopic surgical forceps, such as Figures 1-4 shown, includes a fixed handle 1, a movable handle 2 that is hinged to the fixed handle 1 and can swing, a ball head snap 3, a forceps rod assembly 4, a fixed handle sleeve 5, and a forceps head assembly 6.

[0025] The movable handle 2 is provided with a snap hole 21, and the snap hole 21 is provided with an L-shaped mounting groove 22. A ball head snap 3 is installed in the snap hole 21.

[0026] The ball head snap 3 includes a cylindrical body 34. The cylindrical body 34 is provided with a U-shaped groove 31. Concave-convex teeth 32 are provided on the upper and lower surfaces of the U-shaped groove 31. The concave-convex teeth 32 form a ball head snap groove 33. A rotating ball head 43 is installed in the ball head snap groove 33. The rotating ball head 43 is fixedly connected to a central rod 41. The other end of the central rod 41 is connected to the forceps head assembly 6. An outer tube 42 is sleeved outside the central rod 41. One end of the outer tube 42 is fixedly connected to a forceps rod seat 44, and the other end of the outer tube 42 is connected to the forceps head assembly 6.

[0027] The forceps head assembly 6 includes an upper forceps head 61 and a lower forceps head 62. The tails of the upper forceps head 61 and the lower forceps head 62 are hinged to the outer tube 42 on one side, and the ends of the tails are respectively hinged to the central rod 41 through connecting pieces.

[0028] A fixed handle sleeve 5 is installed at the connection between the fixed handle 1 and the forceps rod seat 44. A retaining ring 7 is provided inside the fixed handle sleeve 5. The retaining ring 7 is snapped into a retaining ring groove on the forceps rod seat 44. The external thread on the fixed handle 1 is matched with the internal thread on the fixed handle sleeve 5 for installation.

[0029] The fixed handle 1 and the movable handle 2 are vertical handles, and the vertical handles are suitable for urological surgery.

[0030] The upper jaw 61 and the lower jaw 62 can be of the clamping type. During the operation, the present utility model is used for grasping tissues or foreign bodies under the endoscope; the upper jaw 61 and the lower jaw 62 can be of the scissor type. During the operation, the present utility model is used for biting and cutting tissues or foreign bodies under the endoscope.

[0031] Installation method: First step, assemble the jaw assembly 6 and the rod assembly 4; Second step, through the L-shaped installation groove 22 of the movable handle 2, insert the rotating ball head 43 of the rod assembly 4 installed in the first step into the movable handle 2, and then snap the ball buckle 3 into the buckle hole 21; Third step, pass the rod assembly 4 installed in the second step through the fixed handle 1 and install it at the hinge of the fixed handle 1 and the movable handle 2 with a pin; Fourth step, tighten the fixed handle sleeve 5 on the fixed handle 1 installed in the previous step to complete the assembly of the instrument.

[0032] During use, according to the doctor's surgical habit, first rotate the fixed handle sleeve 5 to loosen it a little, rotate and adjust the jaw assembly 6 to make the jaw direction suitable, and tighten the fixed handle sleeve 5 to complete the adjustment of the jaw direction.

[0033] Embodiment 2

[0034] As Figure 5 shown, different from Embodiment 1, the fixed handle 1 and the movable handle 2 are horizontal handles, and the horizontal handles are suitable for intrauterine surgical operations.

Claims

1. Disposable endoscopic surgical forceps, characterized by: The invention comprises a fixed handle (1), and a movable handle (2) which is hinged to the fixed handle (1) and can swing, wherein the movable handle (2) is provided with a buckle hole (21), the buckle hole (21) is provided with an L-shaped mounting groove (22), a ball head buckle (3) is installed in the buckle hole (21), a clamp rod assembly (4) is installed in the ball head buckle (3), and a fixed handle sleeve (5) is installed at the connection between the clamp rod assembly (4) and the fixed handle (1).

2. The disposable endoscopic surgical forceps according to claim 1, characterized in that: The ball head buckle (3) comprises a cylindrical body (34), a U-shaped groove (31) is provided on the cylindrical body (34), and concave-convex teeth (32) are provided on the upper and lower surfaces of the U-shaped groove (31), and the concave-convex teeth (32) form a ball head buckle groove (33).

3. The disposable endoscopic surgical forceps according to claim 1, characterized in that: The clamp rod assembly (4) comprises a central rod (41), one end of which is fixedly connected to a rotating ball head (43), and the other end of which is connected to a clamp head assembly (6); an outer tube (42) is sleeved on the outer side of the central rod (41), one end of which is fixedly connected to a clamp rod seat (44), and the other end of which is connected to the clamp head assembly (6).

4. The disposable endoscopic surgical forceps according to claim 3, characterized in that: The clamp head assembly (6) comprises an upper clamp head (61) and a lower clamp head (62), wherein one side of the tail of the upper clamp head (61) and the lower clamp head (62) is hinged to the outer tube (42), and the ends of the tail are hinged to the center rod (41) via connecting plates.

5. The disposable endoscopic surgical forceps according to claim 3, characterized in that: The fixed handle (1) is provided with an external thread matched with the fixed handle sleeve (5), the fixed handle sleeve (5) is provided with a retaining ring (7), and the retaining ring (7) is clamped on the clamp rod seat (44).

6. The disposable endoscopic surgical forceps according to any one of claims 1 to 5, characterized in that: The fixed handle (1) and the movable handle (2) are horizontal handles.

7. The disposable endoscopic surgical forceps according to any one of claims 1 to 5, characterized in that: The fixed handle (1) and the movable handle (2) are vertical handles.

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