Expansion forceps capable of being used for implanting guide wire under arthroscope

Abstract

The utility model belongs to the technical field of arthroscope channel expansion forceps, and particularly relates to an expansion forceps capable of embedding a guide wire under an arthroscope, which comprises a first forceps arm and a second forceps arm, and the surface of the first forceps arm and the surface of the second forceps arm are respectively and fixedly connected with a first forceps handle and a second forceps handle. The surface of the first forceps arm and the surface of the second forceps arm are both slidably connected with connecting shafts, the surface of the first forceps handle is fixedly connected with an adjusting screw and a reset spring, the surface of the first forceps arm and the surface of the second forceps arm are both slidably connected with guide tubes, and guide wires are arranged in the guide tubes. According to the expansion forceps capable of being used for implanting the guide wire under the arthroscope, the first forceps arm and the second forceps arm are arranged to be located on the two sides of the guide tube, then the first forceps arm and the second forceps arm are implanted along the guide wire to expand soft tissue in a joint, and the adjusting block locks the expansion distance of the first forceps arm and the second forceps arm; the technical problem that an existing device is difficult to expand along an original channel after a puncture needle is taken out is solved.

Description

Technical Field

[0001] This utility model relates to the field of arthroscopic channel dilation forceps, and in particular to a dilation forceps for arthroscopic placement of guide wires. Background Technology

[0002] Establishing the arthroscopic access channel is the most basic step in arthroscopic treatment of diseases. In addition to the initial placement of the observation channel, all other procedures in arthroscopy require the establishment of an additional access channel. Routinely, a puncture needle is first inserted to establish the access channel, then the puncture needle is removed, and a small incision is made at the puncture site with a scalpel. A hemostat is inserted into the small incision to expand the soft tissue within the joint, so as to facilitate the subsequent placement of instruments such as radiofrequency ablation and shaving.

[0003] In actual use, the soft tissue of the shoulder joint is thick and relatively loose. In clinical practice, after the puncture needle is removed, the inserted hemostat often has difficulty finding the original puncture needle-established pathway. It takes a long time to repeatedly try, and sometimes it is even difficult to expand along the original channel, which makes it inconvenient to use. Utility Model Content

[0004] Addressing the technical problem that existing devices struggle to expand along the original channel after the puncture needle is removed, this invention proposes a dilator forceps for arthroscopic placement of guidewires.

[0005] This utility model proposes an arthroscopic dilatation forceps for inserting guidewires, comprising a first forceps arm and a second forceps arm. Forceps tips are fixedly connected to the surfaces of both the first and second forceps arms. A first forceps handle and a second forceps handle are fixedly connected to the surfaces of the first and second forceps arms, respectively. A connecting shaft is slidably connected to the surfaces of both the first and second forceps arms. A first connecting block and a second connecting block are fixedly connected to the surfaces of both the first and second forceps arms, respectively. Finger rings are fixedly connected to the surfaces of both the first and second forceps handles. An adjusting screw and a return spring are fixedly connected to the surface of the first forceps handle. An adjusting block is threadedly connected to the surface of the adjusting screw, and an auxiliary piece is fixedly connected to the surface of the adjusting block. A guide tube is slidably connected to the surfaces of both the first and second forceps arms, and a guidewire is disposed inside the guide tube.

[0006] Preferably, the first clamp arm and the second clamp arm are symmetrically distributed with the axis of the connecting shaft as the center, and the surfaces of the first connecting block and the second connecting block are slidably connected.

[0007] Preferably, the surface of the adjusting screw is slidably connected to the surface of the second clamp handle, the return spring is located on the outside of the adjusting screw, and the adjusting block and the return spring are located on both sides of the second clamp handle, respectively.

[0008] Preferably, the surface of the adjusting block is slidably connected to the surface of the second clamp handle, and the surface of the first clamp arm is elastically connected to the surface of the second clamp arm through the return spring.

[0009] Preferably, the two rings are located at the rear ends of the first clamp handle and the second clamp handle, respectively, and the two rings are located on the same axis.

[0010] Preferably, the surface of the guide tube is fixedly connected to the surface of the connecting shaft, and the inner wall of the guide tube is slidably connected to the surface of the guide wire.

[0011] The beneficial effects of this utility model are as follows:

[0012] By setting the first and second clamp arms on both sides of the guide tube, and then inserting the first and second clamp arms along the guide wire to expand the soft tissue inside the joint, and adjusting the block to lock the expansion distance of the first and second clamp arms, the technical problem of existing devices being unable to expand along the original channel after the puncture needle is removed is solved. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of an arthroscopic dilatation forceps for inserting guidewires according to the present invention.

[0014] Figure 2 This is a perspective view of the connecting shaft structure of an arthroscopic dilatation forceps for inserting guidewires.

[0015] Figure 3 This is a perspective view of the second handle structure of a dilatation forceps for arthroscopic guidewire insertion proposed in this utility model.

[0016] In the diagram: 1. First clamp arm; 2. Second clamp arm; 3. Clamp tip; 4. First clamp handle; 5. Second clamp handle; 6. Connecting shaft; 7. First connecting block; 8. Second connecting block; 9. Finger ring; 10. Adjusting screw; 11. Return spring; 12. Adjusting block; 13. Auxiliary plate; 14. Guide tube; 15. Guide wire. Detailed Implementation

[0017] 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.

[0018] Reference Figures 1-3An arthroscopic dilatation forceps for inserting guidewires includes a first forceps arm 1 and a second forceps arm 2. Forceps tips 3 are fixedly connected to the surfaces of both the first forceps arm 1 and the second forceps arm 2. A first forceps handle 4 and a second forceps handle 5 are fixedly connected to the surfaces of both the first forceps arm 1 and the second forceps arm 2, respectively. A connecting shaft 6 is slidably connected to the surfaces of both the first forceps arm 1 and the second forceps arm 2. A first connecting block 7 and a second connecting block 8 are fixedly connected to the surfaces of both the first forceps handle 4 and the second forceps handle 5. An adjusting screw 10 and a return spring 11 are fixedly connected to the surface of the first forceps handle 4. An adjusting block 12 is threadedly connected to the surface of the adjusting screw 10. An auxiliary piece 13 is fixedly connected to the surface of the adjusting block 12. A guide tube 14 is slidably connected to the surfaces of both the first forceps arm 1 and the second forceps arm 2. A guidewire 15 is disposed inside the guide tube 14.

[0019] The first clamp arm 1 and the second clamp arm 2 are symmetrically distributed with the axis of the connecting shaft 6 as the center, and the surfaces of the first connecting block 7 and the second connecting block 8 are slidably connected.

[0020] Furthermore, the first clamp arm 1 and the second clamp arm 2 perform the action of expanding the tissue.

[0021] The surface of the adjusting screw 10 is slidably connected to the surface of the second clamp 5, the return spring 11 is located on the outside of the adjusting screw 10, and the adjusting block 12 and the return spring 11 are located on both sides of the second clamp 5 respectively.

[0022] Furthermore, the adjusting block 12 adjusts the distance between the first clamp 4 and the second clamp 5.

[0023] The surface of the adjusting block 12 is slidably connected to the surface of the second clamp handle 5, and the surface of the first clamp arm 1 is elastically connected to the surface of the second clamp arm 2 through the return spring 11.

[0024] Furthermore, the return spring 11 resets the first clamp arm 1 and the second clamp arm 2 to the closed state.

[0025] The two rings 9 are located at the rear ends of the first clamp handle 4 and the second clamp handle 5, respectively, and the two rings 9 are located on the same axis.

[0026] Furthermore, the two rings 9 facilitate gripping and expand the tissue.

[0027] The surface of the guide tube 14 is fixedly connected to the surface of the connecting shaft 6, and the inner wall of the guide tube 14 is slidably connected to the surface of the guide wire 15.

[0028] Furthermore, the guide tube 14 drives the first clamp arm 1 and the second clamp arm 2 to be inserted into the puncture channel along the guide wire 15.

[0029] By setting the first clamp arm 1 and the second clamp arm 2 on both sides of the guide tube 14, and then inserting the first clamp arm 1 and the second clamp arm 2 along the guide wire 15 to expand the soft tissue inside the joint, and adjusting the block 12 to lock the expansion distance of the first clamp arm 1 and the second clamp arm 2, the technical problem of existing devices being unable to expand along the original channel after the puncture needle is removed is solved.

[0030] Working principle:

[0031] Before use, insert the puncture needle to establish the operating channel. After the puncture needle, including the outer core and the inner core, is inserted, remove the inner core of the puncture needle. Then, insert the guide wire 15 along the puncture needle and remove the outer core of the puncture needle. Then, insert the dilator forceps along the guide wire 15 to dilate the soft tissue in the joint. The guide wire 15 is inserted into the designed channel. Hold the ring 9 with one hand to drive the first handle 4 and the second handle 5 to move closer to each other. The first clamp arm 1 and the second clamp arm 2 rotate around the connecting shaft 6 to dilate the tissue. The first handle 4 is connected to the second handle 5 through the return spring 11. After dilation, the distance between the first handle 4 and the second handle 5 is fixed by the adjusting block 12. The auxiliary piece 13 facilitates rotation. The adjusting block 12 is threaded to the connecting shaft 6 and contacts the surface of the second handle 5 to maintain the dilated state.

[0032] 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 dilatation forceps for arthroscopic guidewire insertion, comprising a first forceps arm (1) and a second forceps arm (2), characterized in that: The surfaces of the first clamp arm (1) and the second clamp arm (2) are both fixedly connected with clamp tips (3). The surfaces of the first clamp arm (1) and the second clamp arm (2) are respectively fixedly connected with a first clamp handle (4) and a second clamp handle (5). The surfaces of the first clamp arm (1) and the second clamp arm (2) are both slidably connected with a connecting shaft (6). The surfaces of the first clamp arm (1) and the second clamp arm (2) are respectively fixedly connected with a first connecting block (7) and a second connecting block (8). The surfaces of the first clamp handle (4) and the second clamp handle (5) are both fixedly connected with a finger ring (9). The surfaces of the first clamp handle (4) are respectively fixedly connected with an adjusting screw (10) and a return spring (11). The surface of the adjusting screw (10) is threadedly connected with an adjusting block (12). The surface of the adjusting block (12) is fixedly connected with an auxiliary piece (13). The surfaces of the first clamp arm (1) and the second clamp arm (2) are both slidably connected with a guide tube (14). The guide tube (14) is provided with a guide wire (15).

2. The dilatation forceps for arthroscopic guidewire insertion according to claim 1, characterized in that: The first clamp arm (1) and the second clamp arm (2) are symmetrically distributed with the axis of the connecting shaft (6) as the center, and the surface of the first connecting block (7) and the surface of the second connecting block (8) are slidably connected.

3. The dilatation forceps for arthroscopic guidewire insertion according to claim 1, characterized in that: The surface of the adjusting screw (10) is slidably connected to the surface of the second clamp (5), the return spring (11) is located on the outside of the adjusting screw (10), and the adjusting block (12) and the return spring (11) are located on both sides of the second clamp (5).

4. The dilatation forceps for arthroscopic guidewire insertion according to claim 1, characterized in that: The surface of the adjusting block (12) is slidably connected to the surface of the second clamp handle (5), and the surface of the first clamp arm (1) is elastically connected to the surface of the second clamp arm (2) through the reset spring (11).

5. The dilatation forceps for arthroscopic guidewire insertion according to claim 1, characterized in that: The two rings (9) are located at the rear ends of the first clamp handle (4) and the second clamp handle (5), respectively, and the two rings (9) are located on the same axis.

6. The dilatation forceps for arthroscopic guidewire insertion according to claim 1, characterized in that: The surface of the guide tube (14) is fixedly connected to the surface of the connecting shaft (6), and the inner wall of the guide tube (14) is slidably connected to the surface of the guide wire (15).

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