Nerve probing hook with cutting function

Abstract

A nerve probing hook with a cutting function comprises an operating rod, a probe is arranged at the lower end of the operating rod, a probe cover plate is arranged above the probe, a cutter is arranged at the bottom of the probe cover plate, a push-pull rod penetrating through the operating rod is arranged in the operating rod, and the lower end of the push-pull rod is connected with the probe cover plate and the cutter and drives the probe cover plate and the cutter to move up and down. The utility model provides a nerve probing hook with a cutting function, which changes the single function of the nerve probing hook, so that the nerve probing hook can be used for probing and releasing nerve roots and simultaneously carrying out safe excision and dissection operation on surrounding adhesion tissues synchronously. When cutting is not needed, the device can be used as a common nerve probing hook.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, especially a nerve probe hook with cutting function. BACKGROUND

[0002] In the operation of spinal cord operation, often use nerve probe hook to explore the nerve root running, separate, release the compressed or adhesion with surrounding tissue nerve. Generally after separating the nerve from the surrounding tissue, gun pliers or blade is used to cut or remove the adhesion or compression soft tissue. But because the nerve probe hook is small, the gap formed after separating and releasing the soft tissue is not big, and the treatment site is mostly in the deep operation field, such as anterior cervical discectomy and fusion internal fixation (ACDF), after separating the gap between the dura mater and the posterior longitudinal ligament by the nerve probe hook, the space obtained by the separation is not enough to insert 1mm gun pliers, and the blade is mostly used to carefully cut off part of the ligament to expand the separation gap, and then the gun pliers is used to bite off the posterior longitudinal ligament. In this case, during the process of cutting off the ligament, because the operation field is deep, the nerve tissue is adjacent and close, and the dura mater has cerebrospinal fluid fluctuation, there is a great possibility of nerve damage or dura mater damage during the process of cutting off the blade. In other cases, after the nerve probe hook releases and separates the nerve and the surrounding tissue, the conventional operation is that one hand uses the nerve probe hook to pick up the soft tissue to be cut, and then the other hand uses the gun-shaped bone rongeur or surgical sharp knife to cut and disconnect; in this process, because the gap in the spine is small, there are many unexpected situations such as the operation forceps cannot enter, the cutting knife cannot enter, the cutting knife is not easy to control (easy to slide and damage other parts), etc. It is of great significance to the smooth and safe operation to safely cut off the adhesion tissue while the nerve probe hook releases and separates the small gap. SUMMARY

[0003] The utility model wants to solve the technical problem to provide a nerve probe hook with cutting function, the cutting knife is integrated on the nerve probe hook

[0004] In order to solve the above technical problem, the utility model adopts the technical scheme of a nerve probe hook with cutting function, which comprises an operating rod, a probe is arranged at the lower end of the operating rod, a probe cover plate is arranged above the probe, a cutting knife is arranged at the bottom of the probe cover plate, a push-pull rod is arranged in the operating rod and penetrates the operating rod, the lower end of the push-pull rod is connected with the probe cover plate and the cutting knife, and drives the up and down movement thereof.

[0005] Preferably, the push-pull rod is connected with the probe cover plate and the cutting knife through a connecting block, and a sliding groove for the up and down movement of the connecting block is further arranged in the side wall of the operating rod.

[0006] Preferably, the probe cover plate and the push-pull rod are directly provided with a diagonal brace.

[0007] Preferably, the upper end of the diagonal brace is provided with a stop block.

[0008] Preferably, the surface of the probe is provided with a cutting groove that cooperates with the cutter.

[0009] Preferably, the bottom of the probe cover is provided with a boss that mates with the cutting groove.

[0010] Preferably, the upper end of the push-pull rod is provided with a push-pull head.

[0011] Preferably, the bottom of the push-pull head is provided with a magnetic block.

[0012] This invention provides a nerve probe with a cutting function, changing the single function of a nerve probe and enabling it to simultaneously and safely remove and sever surrounding adhesions while probing and releasing nerve roots. When cutting is not required, this device can be used as a regular nerve probe. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0016] Figure 3 This is a schematic diagram of the structure of the cutter of this utility model during cutting;

[0017] Figure 4 for Figure 3 Enlarged structural diagram at point B;

[0018] Figure 5 This is a cross-sectional view of the present invention;

[0019] Figure 6 for Figure 5 Enlarged structural diagram at point C;

[0020] Figure 7 for Figure 5 A magnified structural diagram at point D. Detailed Implementation

[0021] like Figures 1-6 As shown, a nerve probe with cutting function includes an operating rod 1, a probe 2 at the lower end of the operating rod 1, a probe cover plate 3 above the probe 2, a cutter 4 at the bottom of the probe cover plate 3, and a push-pull rod 5 that passes through the operating rod 1 inside the operating rod 1. The lower end of the push-pull rod 5 is connected to the probe cover plate 3 and the cutter 4, driving them to move up and down.

[0022] Preferably, the push-pull rod 5 is connected to the probe cover plate 3 and the cutter 4 via the connecting block 6, and a sliding groove 7 is provided on the side wall of the operating rod 1 for the connecting block 6 to move up and down.

[0023] Preferably, the probe cover plate 3 and the push-pull rod 5 are directly provided with a diagonal brace 8. The diagonal brace 8 enhances the stability of the probe cover plate 3 and the cutter 4.

[0024] Preferably, the upper end of the diagonal brace 8 is provided with a stop block 9. The stop block 9 is limited upward by the sliding groove 7.

[0025] Preferably, the surface of the probe 2 is provided with a cutting groove 10 that cooperates with the cutter 4.

[0026] Preferably, the bottom of the probe cover plate 3 is provided with a boss 11 that cooperates with the cutting groove 10.

[0027] Preferred, such as Figure 7 As shown, the upper end of the push-pull rod 5 is provided with a push-pull head 12. The push-pull head 12 is provided to facilitate the operation of the push-pull rod 5.

[0028] Preferably, the bottom of the push-pull head 12 is provided with a magnetic block 13. When cutting is not required, the magnetic block 13 is attracted to the upper end of the operating rod 1, in the form of a common nerve probe.

[0029] This device has two usage modes: 1. As... Figure 1 As shown, press down the push-pull head 12. At this time, the probe 2 and the probe cover plate 3 form a whole, which is the shape of a normal nerve probe hook; Second, lift the push-pull head 12, as shown. Figure 3 As shown, this is the cutting mode. Move the device so that the soft tissue to be cut is between the probe 2 and the probe cover plate 3, and then press the push-pull head 12 to cut.

[0030] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A nerve probe with cutting function, comprising an operating rod (1), wherein a probe (2) is provided at the lower end of the operating rod (1), characterized in that: A probe cover plate (3) is provided above the probe (2), and a cutter (4) is provided at the bottom of the probe cover plate (3). A push-pull rod (5) is provided inside the operating rod (1) and passes through the operating rod (1). The lower end of the push-pull rod (5) is connected to the probe cover plate (3) and the cutter (4) to drive them to move up and down.

2. The nerve probe with cutting function according to claim 1, characterized in that: The push-pull rod (5) is connected to the probe cover plate (3) and the cutter (4) through the connecting block (6). A sliding groove (7) is also provided on the side wall of the operating rod (1) for the connecting block (6) to move up and down.

3. The nerve probe with cutting function according to claim 2, characterized in that: The probe cover (3) and the push-pull rod (5) are directly provided with diagonal bracing (8).

4. The nerve probe with cutting function according to claim 3, characterized in that: The upper end of the diagonal brace (8) is provided with a stop block (9).

5. The nerve probe with cutting function according to claim 1, characterized in that: The probe (2) has a cutting groove (10) on its surface that cooperates with the cutter (4).

6. The nerve probe with cutting function according to claim 5, characterized in that: The bottom of the probe cover plate (3) is provided with a boss (11) that cooperates with the cutting groove (10).

7. The nerve probe with cutting function according to claim 1, characterized in that: The upper end of the push-pull rod (5) is provided with a push-pull head (12).

8. The nerve probe with cutting function according to claim 7, characterized in that: The bottom of the push-pull head (12) is provided with a magnetic block (13).

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