Cranial nerve knife for neurosurgery intracerebral operation

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a cranial nerve knife for neurosurgery intracerebral operation, which comprises a nerve knife handle, a first web placing groove is arranged on the upper surface of one side of the nerve knife handle, the length of the first web placing groove is not less than 5cm, the first web placing groove is integrally a groove area made of an arc, and the length of the first web placing groove is not less than 5cm. According to the nerve knife, the nerve knife body is fixed to the nerve knife handle through the trapezoidal knife body clamping through groove, the contact surface of the normal clamping groove and the knife body is a parallel surface, and the contact surface of the knife body clamping groove and the nerve knife body is an inclined surface. And the friction force is greatly increased.

Description

Technical Field

[0001] The utility model relates to the technical field of cranial nerve knives for surgery, in particular to a cranial nerve knife for intracerebral surgery in neurosurgery. Background Art

[0002] At present, when neurosurgeons perform intracranial surgery on patients, they mostly use meningeal scissors, i.e. ordinary surgical scissors, to cut open the meninges. The tips of these surgical scissors are very sharp, which can easily injure normal brain tissue during the operation, making the work more difficult for medical staff. In addition, the handle is relatively thin and has a smooth surface, which can easily fall off from the hand during the operation, thus causing medical accidents and making the work more difficult for medical staff.

[0003] The existing cranial nerve knife blades are all disposable, and when in use, the notch of the blade needs to be clamped with the clamping block on the handle by clamping pliers to complete the assembly of the cranial nerve knife.

[0004] The Chinese patent publication number is CN 212037680 U, and the name of the utility model is a cranial nerve knife for neurosurgery intracerebral surgery, including a knife handle, a clamping groove is opened at the left end of the knife handle, a blade is movably inserted inside the clamping groove, a thread is provided at the left end of the outer side of the knife handle, and a threaded sleeve is connected to the left end of the outer side of the knife handle through a thread. The above-mentioned new neurosurgery knife has the following defects: the knife body and the knife handle are connected together by a clamping method, but the clamping groove on the knife handle will gradually become larger after the knife body is replaced many times, causing the knife body to slip or directly detach from the knife handle when it is subsequently fixed.

[0005] Therefore, it is very necessary to invent a kind of neurosurgery intracerebral operation with cranial nerve knife. Utility Model Content

[0006] The purpose of the utility model is to solve the following problems: the knife body and the knife handle are connected together by a clamping method, but after multiple replacements of the knife body, the clamping groove on the knife handle will gradually become larger, causing the knife body to slip or directly detach from the knife handle when it is subsequently fixed.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A cranial nerve knife for use in neurosurgery, comprising a cranial nerve knife handle. A thumb groove is provided on the upper surface of one side of the cranial nerve knife handle. The length of the thumb groove is not less than five centimeters. The entirety of the thumb groove is an arc-shaped groove area. A palm support is provided on one side of the thumb groove.

[0009] The two side surfaces of the nerve knife handle are provided with anti-skid grooves, and a plurality of anti-skid grooves are provided on both sides of the nerve knife handle. The anti-skid grooves are provided in an inclined state as a whole, and a palm support body is provided on one end of the nerve knife handle.

[0010] The palm support body is a support body made of a curved arc, and the other end of the nerve knife handle is provided with a knife body placement threaded body, and a thread groove is opened on the surface of the placement threaded body.

[0011] The placement threaded body is provided with a cutter body clamping groove, which is a trapezoidal groove and is arranged on the center line of the placement threaded body. A fixed threaded sleeve is sleeved outside the placement threaded body.

[0012] The inner surface of the fixed thread sleeve is provided with a mounting thread, and the fixed thread sleeve is connected with the clamping groove on the placement thread body through the mounting thread cutter body on itself, and the size and length of the fixed thread sleeve are the same as the mounting thread.

[0013] The size of the clamping slot matches that of the clamping connector, and the shape of the clamping connector is the same as that of the clamping slot. The clamping connector is installed on one end of the nerve knife body, and the clamping connector is installed on the placement threaded body.

[0014] Compared with the prior art, the advantages of the utility model are:

[0015] When this solution is used, it has the following beneficial effects: the nerve knife is fixed to the handle of the nerve knife by a trapezoidal knife body clamping groove. The surface of the normal clamping groove in contact with the knife body is a parallel surface, while the surface of the knife body clamping in contact with the nerve knife body is an inclined surface, which greatly increases the friction. At the same time, the anti-slip groove designed on the handle of the nerve knife is to increase the friction no matter where the doctor places it, without having to place it in a specified position, and the palm support body can be against the side of the doctor's palm, making it more convenient to use the knife and improving the effect of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a cranial nerve knife for neurosurgery intracerebral surgery proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a cranial nerve knife for neurosurgery intracerebral surgery proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a cranial nerve knife for neurosurgery and brain surgery proposed by the utility model assembled together;

[0019] In the figure: the handle of the nerve knife 1, the tiger's mouth placement groove 2, the anti-slip groove 3, the palm support body 4, the placement of the threaded body 5, the threaded groove 6, the knife body clamping groove 7, the installation thread 8, the fixed thread sleeve 9, the clamping connection body 10, the nerve knife body 11. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be described clearly and completely below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0021] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances. Embodiment 1

[0022] Reference Figure 1-3 A cranial nerve knife for neurosurgery includes a cranial nerve knife handle 1, a thumb groove 2 is provided on the upper surface of one side of the cranial nerve knife handle 1, the length of the thumb groove 2 is not less than five centimeters, the whole of the thumb groove 2 is a groove area made of an arc, a palm support body 4 is provided on one side of the thumb groove 2, a plurality of anti-slip grooves 3 are provided on both sides of the cranial nerve knife handle 1, the anti-slip grooves 3 are provided in an inclined state as a whole, and a palm support body 4 is provided on one end of the cranial nerve knife handle 1. Embodiment 2

[0023] A mounting thread 8 is provided on the inner surface of the fixed thread sleeve 9. The fixed thread sleeve 9 is connected to the cutting body of the fixing thread sleeve 9 through the mounting thread 8 on itself and the clamping groove 7 on the placing thread body 5. The size of the clamping groove 7 is consistent with the clamping connecting body 10. The shape of the clamping connecting body 10 is the same as the clamping groove 7. The clamping connecting body 10 is installed on one end of the nerve cutting body 11, and the clamping connecting body 10 is installed on the placing thread body 5.

[0024] Working principle:

[0025] In this embodiment, the clamping connecting body 10 at one end of the nerve knife body 11 is placed from top to bottom or from bottom to top into the knife body clamping groove 7 in the placement threaded body 5, and then the fixed threaded sleeve 9 passes through the nerve knife body 11, and the fixed threaded sleeve 9 is twisted and connected with the threaded groove 6 on the placement threaded body 5 through the installation thread 8. The doctor's index finger and thumb are placed on the surface of both sides of the nerve knife handle 1. The inclined opening of the anti-slip groove 3 can increase the friction, and the doctor's palm side will contact the palm support body 4, which is convenient for the doctor to use the nerve knife better and apply better force.

[0026] The above is only a preferred specific implementation of this embodiment, but the protection scope of this embodiment is not limited to this. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of this embodiment within the technical scope disclosed in this embodiment, which should be covered by the protection scope of this embodiment.

Claims

1. A cranial nerve knife for use in neurosurgery, comprising a cranial nerve knife handle (1), characterized in that: A thumb groove (2) is provided on the upper surface of one side of the nerve knife handle (1). The length of the thumb groove (2) is not less than five centimeters. The thumb groove (2) is an arc-shaped groove area. A palm support body (4) is provided on one side of the thumb groove (2).

2. The cranial nerve knife for neurosurgery for intracerebral surgery according to claim 1, characterized in that: The surfaces of both sides of the nerve knife handle (1) are provided with anti-skid grooves (3), a plurality of anti-skid grooves (3) are provided on both sides of the nerve knife handle (1), the anti-skid grooves (3) are provided in an inclined state as a whole, and a palm support body (4) is provided on one end of the nerve knife handle (1).

3. The cranial nerve knife for neurosurgery for intracerebral surgery according to claim 2, characterized in that: The palm support body (4) is a support body (4) made of a bent arc, and the other end of the nerve knife handle (1) is provided with a knife body placement threaded body (5), and a thread groove (6) is provided on the surface of the placement threaded body (5).

4. The cranial nerve knife for neurosurgery for intracerebral surgery according to claim 3, characterized in that: The placement threaded body (5) is provided with a cutter body clamping groove (7), which is a trapezoidal groove. The cutter body clamping groove (7) is provided on the center line of the placement threaded body (5), and a fixed threaded sleeve (9) is sleeved on the outside of the placement threaded body (5).

5. The cranial nerve knife for neurosurgery intracerebral surgery according to claim 4, characterized in that: The inner surface of the fixed thread sleeve (9) is provided with a mounting thread (8), and the fixed thread sleeve (9) is connected to the clamping groove (7) on the placement thread body (5) through the mounting thread (8) on the fixed thread sleeve (9), and the size and length of the fixed thread sleeve (9) are the same as those of the mounting thread (8).

6. The cranial nerve knife for neurosurgery for intracerebral surgery according to claim 5, characterized in that: The size of the locking groove (7) matches that of the locking connecting body (10), the shape of the locking connecting body (10) is the same as that of the locking groove (7), the locking connecting body (10) is mounted on one end of the nerve knife body (11), and the locking connecting body (10) is mounted on the placement threaded body (5).

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