Radio frequency type nerve dissector

Abstract

The utility model provides a radio frequency type nerve dissector which comprises a handheld handle and a dissecting body for surgical operation, one end of the dissecting body penetrates through and is fixed in the handle, the other end of the dissecting body is provided with a dissecting body hook body, the top end of the dissecting body hook body is further provided with a thermal coagulation ball, and a heating element in the thermal coagulation ball is electrically connected with the dissecting body through a circuit embedded in the dissecting body. Connecting an external power supply; no extra hemostasis equipment is needed, and radio frequency cutting and hemostasis are directly carried out in a radio frequency thermal coagulation mode; operation is easy, cooperation of other people is not needed, and a single medical worker can hold the nerve detacher by hand; the operation harm to a patient is reduced, and the operation time is shortened to a certain extent.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical devices, in particular to a radio frequency type nerve dissector. BACKGROUND

[0002] In endoscopic spinal surgery, the fatty tissue on the surface of the dura mater contains a large number of small blood vessels. When the nerve dissector is used to free, it may cause small blood vessels to rupture and bleed, thereby affecting the surgical field of view or causing tissue damage. When the connective tissue or ligament around the nerve root is freed, if the nerve is pulled too much, the epineurium may be torn and the nerve may be damaged. The ordinary nerve dissector only has the function of free pulling, and has no radio frequency cutting and coagulation functions.

[0003] At present, in order to avoid the problem of bleeding of the patient during the operation, only the methods such as gelatin sponge plugging, brain cotton compression or radio frequency hemostasis can be used for hemostasis, which not only increases the operation time and patient bleeding, but also may cause hemorrhagic shock, tissue damage and operation failure, and even endanger the life of the patient. SUMMARY

[0004] In view of the above defects of the prior art, the present application provides a radio frequency type nerve dissector, which comprises a handle 1 for hand holding and a dissector 2 for surgical operation. The dissector 2 is penetrated and fixed at one end inside the handle 1, and a dissector hook body 21 is arranged at the other end. A thermocoagulation ball 22 is further arranged at the top end of the dissector hook body 21. The heating element in the thermocoagulation ball 22 is connected to the external power supply through the circuit embedded in the dissector 2.

[0005] Preferably, the side wall of the dissector 2 is further provided with a control switch electrically connected to the thermocoagulation ball 22, and the control switch is exposed to the outside of the handle 1.

[0006] Preferably, the dissector hook body 21 is L-shaped, and the thermocoagulation zones are arranged on the upper and lower sides of the horizontal section of the bottom side.

[0007] Preferably, the thermocoagulation ball 22 comprises the thermocoagulation zones of the dissector hook body 21 and the radio frequency wires embedded in the thermocoagulation zones.

[0008] Preferably, the radio frequency wires of the two thermocoagulation zones are selectively connected to the circuit in the dissector 2 through the control switch.

[0009] Preferably, the circuit in the dissector 2 is a radio frequency circuit, and the external power supply is connected.

[0010] Preferably, the handle 1 is divided into two layers of insulating layer and heat insulation layer from inside to outside, and the anti-slip pattern is arranged on the outside of the heat insulation layer.

[0011] Preferably, the handle 1 is provided with an external socket on the side away from the dissector 2.

[0012] The present application has the following advantages:

[0013] 1. Without additional hemostatic equipment, directly cutting and hemostasis by radiofrequency coagulation;

[0014] 2. Simple operation, no need for others to cooperate, a single medical staff holding a nerve dissector can complete it;

[0015] 3. Reduce the surgical hazards to patients, and to a certain extent, shorten the operation time. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the front view of the present application;

[0017] Figure 2 is a structural diagram of the present application;

[0018] Figure 3 is a structural diagram of the present application;

[0019] In the figure,

[0020] 1. handle;

[0021] 2. dissector; 21, dissector hook body; 22, coagulation ball. DETAILED DESCRIPTION

[0022] In order to make the person skilled in the art better understand the technical solutions of the present application, and make the above features, objects and advantages of the present application more clear and easy to understand, the present application will be further described below in conjunction with examples. The examples are only used to illustrate the present application and not to limit the scope of the present application.

[0023] Referring to Figure 1 , 2 and 3, the present application comprises: a handle 1 for hand holding and a dissector 2 for surgical operation, the dissector 2 is fixed at one end inside the handle 1, and the other end is provided with a dissector hook body 21, and the top end of the dissector hook body 21 is further provided with a coagulation ball 22, and the heating element in the coagulation ball 22 is connected with the external power supply through the circuit embedded in the dissector 2.

[0024] In order to better control the heating of the coagulation ball 22, the side wall of the dissector 2 is further provided with a regulating switch electrically connected with the coagulation ball 22, and the regulating switch is exposed on the outside of the handle 1.

[0025] In operation, the on-off and intensity of radiofrequency is controlled by the regulating switch, the cutting is performed by the heating element at the coagulation ball 22, and the cutting or hemostasis is completed by radiofrequency cutting or radiofrequency hemostasis.

[0026] In the present embodiment, the heating element adopts radiofrequency components, therefore, the circuit in the dissector 2 is a radiofrequency circuit, and the external power supply is connected. The external socket is arranged on the side of the handle 1 away from the dissector 2, so as to connect the external power supply.

[0027] In order to better cut and coagulate, the hook body 21 is L-shaped, and the bottom side horizontal section is provided with coagulation areas on the upper and lower sides. The coagulation ball 22 comprises the coagulation areas of the hook body 21 and the radio frequency wire embedded in the coagulation areas. The radio frequency wires of the two coagulation areas are selectively connected to the circuit in the stripping body 2 through the control switch. The control switch is provided with at least five gears, which are, in sequence, front strong power, front weak power, stop, back strong power, and back weak power, for controlling the emission and strength of the radio frequency wave. When any radio frequency wire is connected to the power circuit, the corresponding radio frequency wire will emit radio frequency wave, so as to cut in the local area. At the same time, the coagulation is completed by directly heating the local tissue.

[0028] In order to prevent the user from being hurt, the handle 1 is divided into two layers of insulation layer and heat insulation layer from inside to outside, and the heat insulation layer is provided with anti-skid lines on the outside. The insulation layer can be made of rubber, the heat insulation layer can be made of asbestos, and the anti-skid lines can be filled with a small amount of metal to isolate a small part of the possible radio frequency wave.

[0029] The above embodiments only exemplarily illustrate the principles and effects of the present patent application, and are not used to limit the present patent application. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present patent application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed in the present patent application should be covered by the claims of the present patent application.

Claims

1. A radiofrequency-type nerve dissector, characterized in that, include: The handpiece (1) is for hand use and the dissector (2) is for surgical operation. One end of the dissector (2) is inserted through and fixed inside the handpiece (1), and the other end is provided with a dissector hook (21). The top of the dissector hook (21) is also provided with a thermal coagulation ball (22). The heating element in the thermal coagulation ball (22) is connected to an external power source through a circuit embedded in the dissector (2).

2. The radiofrequency nerve dissector according to claim 1, characterized in that: The side wall of the peeling body (2) is also provided with a control switch for electrically connected thermal condensation ball (22), and the control switch is exposed on the outside of the handle (1).

3. The radiofrequency nerve dissector according to claim 2, characterized in that: The peeler hook (21) is L-shaped, with heat-coagulation zones set on the upper and lower sides of the bottom horizontal section.

4. The radiofrequency nerve dissector according to claim 3, characterized in that: The thermocoagulation ball (22) includes a thermocoagulation zone of the peeler hook (21) and a radio frequency line embedded in the thermocoagulation zone.

5. The radiofrequency nerve dissector according to claim 4, characterized in that: The radio frequency lines of the two thermal coagulation zones are selectively connected to the circuit inside the stripping body (2) via a control switch.

6. The radiofrequency nerve dissector according to claim 1, characterized in that: The circuit inside the stripper (2) is a radio frequency circuit with an external power supply.

7. The radiofrequency nerve dissector according to claim 1, characterized in that: The handle (1) is divided into two layers from the inside out: an insulating layer and a heat insulation layer. The heat insulation layer has anti-slip texture on the outside.

8. The radiofrequency nerve dissector according to claim 1, characterized in that: An external socket is provided on the side of the handle (1) away from the peeler (2).

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