Nerve detacher for endoscope

Abstract

The invention discloses a nerve detacher for an endoscope, and relates to the technical field of medical instruments, the nerve detacher comprises a body part, one end of the body part is provided with a handle, the other end of the body part is provided with a detaching head, the two ends of the body part are both provided with clamping and embedding devices, the body part is provided with a slidable sliding sleeve, and the sliding sleeve is provided with a clamping and embedding device. The end, close to the handle, of the sliding sleeve is provided with a clamping part, and the clamping part is in clamping fit with the clamping and embedding device. When the clamping part is in clamping fit with the clamping and embedding device close to the stripping head, the stripping head is sleeved with the sliding sleeve, and the front end of the stripping head cannot be exposed. The stripping head is sleeved with the sliding sleeve in a sliding mode to form protection, the bent stripping head can better pass through a soft tissue channel, the problem that the stripping head is blocked by soft tissue and falls off when holding bone wax is solved, and in addition, the stripping head has the advantages of being simple in structure and convenient to operate.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an endoscopic nerve dissector. Background Technology

[0002] A nerve dissector is an instrument used in surgery for nerve dissection and protection. It exposes the nerve and preserves its integrity by gently dissecting surrounding tissue. In spinal surgery, it is used as a bone wax holder to press bone wax onto the surface of the removed cancellous bone for hemostasis. Its characteristics include: nerve dissectors are typically made of stainless steel or titanium alloy, offering good corrosion resistance and rigidity. Their unique design allows for easy dissection of tissue surrounding the nerve while minimizing nerve damage. Furthermore, nerve dissectors usually consist of a handle and a dissecting head. The handle is generally ergonomically designed for easy gripping and manipulation. The dissecting head is typically flat with rounded edges to ensure no cutting or compression occurs during nerve dissection. In addition, nerve dissectors can be categorized into several types depending on the surgical requirements. Common types include straight, curved, and angle-adjustable types. Straight nerve dissectors are suitable for straight cutting and dissection, curved types are suitable for surgeries requiring dissection along curved paths, and angle-adjustable types allow for flexible angle adjustment as needed. In summary, the nerve dissector is a commonly used orthopedic surgical instrument for nerve dissection and protection. It has good corrosion resistance and rigidity, unique design, and is easy to operate.

[0003] However, among the existing nerve dissectors, most of the endoscopic dissectors are curved. Curved dissectors are easily blocked and stuck by soft tissue, especially when holding bone wax, which can cause the bone wax to fall off. Some bone wax is difficult to remove after falling off and becomes a foreign body. It can be seen that this curved endoscopic dissector has certain limitations. Summary of the Invention

[0004] The purpose of this invention is to provide an endoscopic nerve dissector that solves the problem mentioned in the background art that the curved endoscopic dissector is easily blocked by soft tissue when holding bone wax, causing the bone wax to fall off.

[0005] The present invention adopts the following technical solution:

[0006] The present invention provides an endoscopic nerve dissector, comprising a body, a handle at one end of the body, a dissector head at the other end of the body, a locking device at both ends of the body, a slidable sliding sleeve on the body, and a locking part at the end of the sliding sleeve near the handle, the locking part engaging with the locking device.

[0007] When the clamping part is engaged with the locking device near the peeling head, the sliding sleeve is fitted over the outside of the peeling head and will not expose the front end of the peeling head.

[0008] Preferably, the snap-fit ​​device includes a spring clip, the spring clip is arched, one end of the spring clip is provided with a connecting end, and the connecting end is fixedly connected to the body;

[0009] The locking part includes a slot, which is disposed on the inner wall of the sliding sleeve, and the arched top of the spring clip abuts against the slot.

[0010] Preferably, the locking part further includes a sliding groove, one end of which is provided with the locking slot, and the depth of the locking slot is deeper than the depth of the sliding groove, and the spring clip is slidably connected and engaged with the sliding groove.

[0011] Preferably, the handle is provided with anti-slip texture.

[0012] Preferably, the end of the sliding sleeve near the handle is provided with anti-slip texture.

[0013] Preferably, the peeling head includes a connecting portion, one end of which is provided with a pointed portion, and the other end of which is fixedly connected to the body portion.

[0014] Preferably, the thickness of the connecting portion gradually decreases from the tip, and the tip is bent to one side.

[0015] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0016] This invention designs a sliding sleeve, which can be relatively fixed to the body of the nerve dissector through a snap-fit ​​device and a locking part. The sliding sleeve is slidably fitted onto the dissector head to form a protection, which not only allows the curved dissector head to pass through the soft tissue channel better, but also avoids the problem of the dissector head falling off due to obstruction by soft tissue when holding bone wax. In addition, this invention also has the advantages of simple structure and convenient operation. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This invention provides an endoscopic nerve dissector for frontal viewing. Figure 1 ;

[0019] Figure 2 This invention provides an endoscopic nerve dissector for frontal viewing. Figure 2 ;

[0020] Figure 3 This invention relates to a top view of an endoscopic nerve dissector. Figure 1 ;

[0021] Figure 4 This invention relates to a top view of an endoscopic nerve dissector. Figure 2 ;

[0022] Figure 5 This is a schematic diagram of the structure of an endoscopic nerve dissector after removing the sliding sleeve according to the present invention;

[0023] Figure 6 This is a longitudinal sectional view of the sliding cannula in an endoscopic nerve dissector according to the present invention.

[0024] Figure 7 This is a transverse cross-sectional view of the sliding cannula in an endoscopic nerve dissector according to the present invention;

[0025] Figure 8 This is a cross-sectional view of the locking device and the locking part in the endoscopic nerve dissector of the present invention in the engagement state.

[0026] Explanation of reference numerals in the attached drawings: 1. Handle; 2. Body; 3. Peeling head; 3-1. Connecting part; 3-2. Tip; 4. Clamping device; 4-1. Spring clip; 4-2. Connecting end; 5. Sliding sleeve; 6. Clamping part; 6-1. Slot; 6-2. Slide groove. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] like Figures 1 to 5 As shown, this embodiment discloses an endoscopic nerve dissector, including a body 2, a handle 1 at one end of the body 2, and a dissector head 3 at the other end of the body 2. The handle 1 has anti-slip textures. The sliding sleeve 5 has anti-slip textures at the end near the handle 1.

[0029] In this embodiment, the peeling head 3 includes a connecting part 3-1, one end of the connecting part 3-1 is provided with a tip 3-2, and the other end of the connecting part 3-1 is fixedly connected to the body part 2.

[0030] The thickness of the connecting portion 3-1 gradually decreases from the tip 3-2, and the tip 3-2 bends to one side. Furthermore, the edges of both the connecting portion 3-1 and the tip 3-2 are blunted to avoid being too sharp.

[0031] Both ends of the body 2 are provided with locking devices 4, and the body 2 is provided with a sliding sleeve 5. The end of the sliding sleeve 5 near the handle 1 is provided with a locking part 6, which is locked in place with the locking device 4.

[0032] When the sliding sleeve 5 is located on the body 2 and the locking part 6 is locked in place with the locking device 4 at the end of the body 2 near the handle 1, the connecting part 3-1 and the tip 3-2 of the peeling head 3 are fully exposed, allowing for normal bone wax removal. In this embodiment, the sliding sleeve 5 is made of stainless steel.

[0033] Push the sliding sleeve 5 to one side of the dissecting head 3 so that the locking part 6 is locked in place with the locking device 4 near the dissecting head 3. At this time, the sliding sleeve 5 is sleeved on the outside of the dissecting head 3 and the front end of the tip 3-2 is not exposed (that is, the tip 3-2 is covered inside the sliding sleeve 5). Under the protection of the sliding sleeve 5, the sliding sleeve 5 and the dissecting head 3 can avoid the tip 3-2 from damaging the soft tissue or the soft tissue from blocking the curved tip 3-2 when passing through the soft tissue channel. This allows the curved connecting part 3-1 to pass through the soft tissue channel better and also prevents the tip 3-2 from being blocked by the soft tissue and falling off when holding bone wax.

[0034] like Figures 5 to 8 As shown, the locking device 4 includes a spring clip 4-1, which is arched. One end of the spring clip 4-1 has a fixed connecting end 4-2, which is fixedly connected to the body 2. The other end of the spring clip 4-1 is free to move. When the arched top plate of the spring clip 4-1 is pressed, it deforms downward; when the pressure is released, it returns to its original arched state. The locking part 6 includes a groove 6-1, which is located on the inner wall of the sliding sleeve 5. The arched top of the spring clip 4-1 abuts against the groove 6-1. The locking part 6 also includes a sliding groove 6-2, where the groove 6-1 is located near the handle 1, and the depth of the groove 6-1 is greater than the depth of the sliding groove 6-2. The spring clip 4-1 is slidably connected to the sliding groove 6-2. Figure 8 As shown, the slot 6-1 is engaged with the spring card 4-1 near the handle 1. The spring card 4-1 is locked in the slot 6-1. When the sliding sleeve 5 is pressed forward with a little force, the sliding sleeve 5 will squeeze the spring card 4-1, causing the arch of the spring card 4-1 to collapse. Thus, the slot 6-2 slides over the deformed spring card 4-1. The sliding sleeve 5 can move forward and cover the connecting part 3-1 and the tip 3-2 until the slot 6-1 slides onto the spring card 4-1 near the peeling head 3 and is locked onto the spring card 4-1. This fixes the position of the sliding sleeve 5 relative to the peeling head 3, thereby preventing the tip 3-2 from being blocked by soft tissue and falling off when picking up bone wax.

[0035] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. An endoscopic nerve dissector, comprising a body (2), a handle (1) at one end of the body (2), and a dissector head (3) at the other end of the body (2), characterized in that: Both ends of the body (2) are provided with locking devices (4), and the body (2) is provided with a sliding sleeve (5). The sliding sleeve (5) is provided with a locking part (6) at one end near the handle (1). The locking part (6) is locked in place with the locking device (4). When the clamping part (6) is clamped in place with the clamping device (4) near the peeling head (3), the sliding sleeve (5) is fitted over the outside of the peeling head (3) and will not expose the front end of the peeling head (3).

2. The endoscopic nerve dissector according to claim 1, characterized in that: The snap-fit ​​device (4) includes a spring clip (4-1), which is arched and has a connecting end (4-2) at one end. The connecting end (4-2) is fixedly connected to the body (2). The locking part (6) includes a slot (6-1), which is disposed on the inner wall of the sliding sleeve (5), and the arched top of the spring clip (4-1) abuts against the slot (6-1).

3. The endoscopic nerve dissector according to claim 2, characterized in that: The locking part (6) further includes a sliding groove (6-2), one end of which is provided with the slot (6-1), and the depth of the slot (6-1) is deeper than the depth of the sliding groove (6-2). The spring clip (4-1) is slidably connected to the sliding groove (6-2).

4. The endoscopic nerve dissector according to claim 1, characterized in that: The handle (1) is provided with anti-slip texture.

5. The endoscopic nerve dissector according to claim 1, characterized in that: The sliding sleeve (5) has anti-slip texture at one end near the handle (1).

6. The endoscopic nerve dissector according to claim 1, characterized in that: The peeling head (3) includes a connecting part (3-1), one end of which is provided with a tip (3-2), and the other end of which is fixedly connected to the body part (2).

7. The endoscopic nerve dissector according to claim 6, characterized in that: The thickness of the connecting portion (3-1) gradually decreases from the tip (3-2), and the tip (3-2) bends to one side.

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