Ablation needle with nerve detection function

Abstract

The utility model belongs to the technical field of medical equipment, and particularly relates to an ablation needle with a nerve detection function. The utility model provides an ablation needle with a nerve detection function, which aims at solving the problem that the ablation needle in the prior art cannot immediately judge the damage condition of nerves around an operation site, and comprises an ablation needle rod main body and an ablation needle shell, the melting needle rod body is arranged in the melting needle shell in a sleeved mode, and one end of the melting needle rod body extends out of the melting needle shell. A working cavity is further formed between the ablation needle rod body and the ablation needle shell, a nerve detection assembly is arranged in the ablation needle shell in a sliding mode, and one end of the nerve detection assembly extends into the working cavity. And the end part of the nerve detection assembly can extend out of the ablation needle shell and surround the outer side of the end part of the ablation needle rod main body by sliding the nerve detection assembly. The nerve detection assembly can stretch out at any time to detect the activity condition of nerve tissue around the ablation needle rod body, and high efficiency and convenience are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical equipment, especially relates to a kind of ablation needle with nerve detection function. BACKGROUND

[0002] Microwave ablation needle is the medical instrument that tumor ablation is carried out in needle head by converting electric energy into heat energy.In operation, it is easy to damage surrounding tissue because of temperature is too high. For example, when ablation brain tumor, abundant neural network makes operation must be more cautious, so the damage condition of nerve near microwave ablation needle working end needs to be observed at any time.

[0003] For example, Chinese utility model patent application discloses a kind of microwave ablation needle [application number: 202321059822.8].The utility model includes control shell and connecting shell, the control shell one side is fixedly connected with connecting shell, the control shell lower end is fixedly connected with handle, the connecting shell one side is fixedly connected with microwave shell, the control shell inner side is fixedly connected with motor, the motor main shaft end is fixedly connected with threaded rod, the motor outer side is fixedly connected with sliding block, the sliding block outer side slides in the inner side of sliding slot, the control shell inner side is equipped with sliding slot, the threaded rod one side is rotatably connected with ablation needle

[0004] The utility model can cool down needle head of microwave ablation needle in time after treatment is completed, avoid needle head residual heat to cause damage to normal tissue of human body, and can observe internal temperature of needle head, convenient to take out at appropriate temperature, but still cannot monitor the damage condition of tissue nerve, although first water channel, heat insulating block, cooling column, second water channel and thermometer are arranged. SUMMARY

[0005] The utility model aims at above problem, provide a kind of ablation needle with nerve detection function, by setting up the nerve detection component of telescopic nerve damage detection to surrounding tissue in operation at any time.

[0006] The utility model, including ablation needle pole main part and ablation needle shell, the ablation needle pole main part is set in ablation needle shell and the one end of ablation needle pole main part extends to the outside of ablation needle shell;Working cavity is further equipped between the ablation needle pole main part and ablation needle shell, the nerve detection component is slidably arranged in the ablation needle shell, the one end of nerve detection component extends to working cavity, and the end of nerve detection component can be extended to the outside of ablation needle shell and encircle the outside of ablation needle pole main part end by sliding nerve detection component.

[0007] Preferably, the nerve detection assembly comprises a nerve detection claw and a probe body in the working cavity, the nerve detection claw is fixedly connected to the probe body, a pushing member is further fixedly connected to the outer wall of the probe body, and one end of the pushing member extends to the outside of the ablation needle shell through a limiting hole formed on the ablation needle shell.

[0008] Preferably, the probe body is in a hollow cylindrical structure, and the ablation needle rod body penetrates into the probe body.

[0009] Preferably, the nerve detection claw is provided in a plurality of roots, and the nerve detection claws are uniformly distributed along the axis of the ablation needle rod body in a circumferential direction.

[0010] Preferably, the pushing member comprises a sliding connecting rod and a sliding button, the limiting hole is in a strip shape, and the sliding button is pressed on the limiting hole to slide.

[0011] Preferably, the ablation needle shell comprises an ablation needle working shell and an external sheath tube, the external sheath tube is located at a portion of the ablation needle rod body that extends out of the ablation needle working shell, and the nerve detection assembly is clamped between the external sheath tube and the ablation needle rod body.

[0012] Preferably, the nerve detection claw is an elastic component and has a tendency to expand relative to the probe body, and can expand out of the external sheath tube along with the movement of the nerve detection assembly.

[0013] Preferably, the utility model further comprises a recovery assembly, and the recovery assembly has a tendency to recover when the nerve detection assembly moves to extend out of the ablation needle rod body.

[0014] Preferably, the recovery assembly is a spring, one end of the spring is fixed to the ablation needle shell, the other end of the spring is fixed to the probe body, and the spring is compressed when the end of the nerve detection assembly that is pushed extends to the outside of the ablation needle shell.

[0015] Preferably, the ablation needle working shell is provided with a transmission hole, and the nerve detection assembly is connected to an external device through the transmission hole.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The utility model discloses a special ablation needle shell, and a working cavity is formed between the ablation needle shell and the ablation needle rod body to clamp and accommodate the telescopic nerve detection assembly, so that the damage of nerves around the operation site can be monitored at any time during the operation, the microwave ablation power can be grasped, and corresponding processing measures can be taken. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole schematic view of the utility model;

[0019] Figure 2The utility model discloses nerve detection assembly non -extension state schematic drawing of the utility model;

[0020] Figure 3 The utility model discloses nerve detection assembly extension state partial schematic drawing of the utility model;

[0021] Figure 4 It is the utility model explosion map;

[0022] In the drawing: ablation needle stem main body 1, ablation needle shell 2, working cavity 3, nerve detection assembly 4, spring 5, ablation needle work shell 21, external sheath 22, nerve detection claw 41, probe main body 42, pusher 43, limit hole 44, sliding link 431, slide button 432. Specific implementation

[0023] The utility model will be further explained in detail in connection with the specific implementation and the accompanying drawings.

[0024] The utility model discloses an ablation needle with nerve detection function, as shown in Figure 1 、 2 , 4, including ablation needle stem main body 1 and ablation needle shell 2, ablation needle stem main body 1 is set in ablation needle shell 2 and ablation needle stem main body 1 one end extends to ablation needle shell 2 outside;The working cavity 3 is also arranged between ablation needle stem main body 1 and ablation needle shell 2, the nerve detection assembly 4 is slidably arranged in the ablation needle shell 2, and one end of the nerve detection assembly 4 extends into the working cavity 3, and the sliding nerve detection assembly 4 can make the end of the nerve detection assembly 4 extend to the outside of the ablation needle shell 2 and surround the outside of the ablation needle stem main body 1 end.

[0025] The utility model, when using, the nerve detection assembly 4 is slid to the ablation needle stem working end through a certain mode, and the nerve detection assembly 4 is inserted into the surrounding nerve tissue and thus carries out nerve tissue activity detection.

[0026] Preferably, as shown in Figure 2 , the nerve detection assembly 4 includes nerve detection claw 41 and probe main body 42 in the working cavity 3, the nerve detection claw 41 is fixedly connected on the probe main body 42, the pusher 43 is also fixedly connected on the outer wall of the probe main body 42, and one end of the pusher 43 extends to the outside of the ablation needle shell 2 through the limit hole 44 arranged on the ablation needle shell 2, so that the operator can operate and move the probe main body 42 outside to control the nerve detection claw 41 to extend / contract into the ablation needle shell 2.

[0027] Preferably, the probe main body 42 is hollow cylindrical structure, and the ablation needle stem main body 1 is penetrated in the probe main body 42 to compact structure, and the space is reduced.

[0028] Preferably, the nerve probe 41 is provided with a plurality of roots, and the nerve probe 41 is uniformly distributed along the axial line of the needle body 1 to uniformly detect the peripheral nerve tissue of the operation position.

[0029] Preferably, the pusher 43 comprises a sliding link 431 and a sliding knob 432, the limiting hole 44 is in a strip shape, and the sliding knob 432 is pressed on the limiting hole 44 to slide to realize the stability of the sliding structure.

[0030] Preferably, the ablation needle shell 2 comprises an ablation needle working shell 21 and an external sheath 22, and the external sheath 22 is used to clamp and fix the nerve detection assembly 4 because other components are arranged in the ablation needle working shell 21. The external sheath 22 is located at a part of the ablation needle body 1 extending out of the ablation needle working shell 21, and the nerve detection assembly 4 is clamped between the external sheath 22 and the ablation needle body 1.

[0031] Preferably, the nerve probe 41 is an elastic component and has an outward tendency relative to the probe body 42, and can be extended out of the external sheath 22 to realize the zooming of the nerve detection assembly 4.

[0032] Preferably, the utility model also has a restoring assembly, and the restoring assembly has a restoring tendency when the nerve detection assembly 4 moves out of the ablation needle shell 2, that is, the nerve probe 41 can be restored to the retracted state as shown in the figure. Figure 2

[0033] Preferably, as shown in the figure, Figure 2 、 4 The restoring assembly is a spring 5, one end of the spring 5 is fixed to the ablation needle shell 2, and the other end of the spring 5 is fixed to the probe body 42. When the end of the nerve detection assembly 4 extends out of the ablation needle shell 2, the spring 5 is pressed.

[0034] Preferably, the ablation needle shell 2 is provided with a transmission hole, and the nerve detection assembly 4 is connected to external equipment through the transmission hole.

[0035] The working principle of the utility model is as follows: the nerve detection assembly 4 is inserted into the working cavity 3 of the ablation needle body 1 and the ablation needle shell 2 to be fixed. Specifically, the ablation needle shell 2 mainly fixes the external sheath 22 of the front section of the ablation needle body 1 and the ablation needle body 1 to jointly clamp the probe body 42, thereby completing the fixing. The tail of the probe body 42 is connected with a cable and extends out of the transmission hole to connect the equipment for processing and displaying the nerve detection current signal. When it is necessary to judge the damage of the peripheral nerve tissue of the operation position, the ablation needle body 1 is stopped, the sliding knob 432 on the limiting hole 44 is pushed through the sliding link 431 to push the probe body 42 to drive the nerve probe 41 to extend out of the external sheath 22, thereby forming the state as shown in the figure. Figure 3 ​The nerve probe 41 is retracted into the outer sheath 22 to avoid affecting the work of the ablation needle 1. The ablation needle 1 is shown in the state of working. The nerve probe 41 is expanded to detect the nerve tissue around the operation site. The nerve current signal is transmitted to the instrument for analysis to determine the nerve tissue around the operation site and to determine how to continue the operation. After detection, the hand releases the slide button 432, and the spring 5 automatically drives the probe body 42 to retract the nerve probe 41 into the outer sheath 22 to avoid affecting the work of the ablation needle 1.

[0036] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

[0037] Although the terms such as ablation needle 1, ablation needle shell 2, working cavity 3, nerve detection assembly 4, spring 5, ablation needle working shell 21, outer sheath 22, nerve probe 41, probe body 42, pusher 43, limiting hole 44, sliding link 431, slide button 432 are used more in this paper, but the possibility of using other terms is not excluded. The use of these terms is only to facilitate the description and explanation of the essence of the present application; any additional limitation is contrary to the spirit of the present application.

Claims

1. An ablation needle with a nerve detection function, comprising an ablation needle rod body (1) and an ablation needle shell (2), the ablation needle rod body (1) is sleeved in the ablation needle shell (2) and one end of the ablation needle rod body (1) extends to the outside of the ablation needle shell (2), characterized in that: The ablation needle rod body (1) and the ablation needle shell (2) are further provided with a working cavity (3), the nerve detection assembly (4) is slidably arranged in the ablation needle shell (2), one end of the nerve detection assembly (4) extends into the working cavity (3), and the sliding nerve detection assembly (4) can make the end of the nerve detection assembly (4) extend outside the ablation needle shell (2) and wrap around the end of the ablation needle rod body (1).

2. The ablation needle with nerve probing functionality of claim 1, wherein: The nerve detection assembly (4) comprises a nerve detection claw (41) and a probe body (42) located in the working cavity (3), the nerve detection claw (41) is fixedly connected to the probe body (42), and a pushing piece (43) is further fixedly connected to the outer wall of the probe body (42), one end of the pushing piece (43) extends to the outside of the ablation needle shell (2) through a limiting hole (44) formed on the ablation needle shell (2).

3. The ablation needle with nerve probing functionality of claim 2, wherein: The probe body (42) is in a hollow cylindrical structure, and the ablation needle rod body (1) penetrates into the probe body (42).

4. The ablation needle with nerve probing functionality of claim 2, wherein: The nerve detection claw (41) is provided with a plurality of roots, and the nerve detection claws (41) are evenly distributed in a circumferential direction along the axis of the ablation needle rod body (1).

5. The ablation needle with nerve probing functionality of claim 2, wherein: The pushing piece (43) comprises a sliding connecting rod (431) and a sliding button (432), the limiting hole (44) is in a strip shape, and the sliding button (432) is pressed on the limiting hole (44) to slide.

6. The ablation needle with nerve probing functionality of claim 1, wherein: The ablation needle shell (2) comprises an ablation needle working shell (21) and an external sheath tube (22), the external sheath tube (22) is located at the part of the ablation needle rod body (1) extending out of the ablation needle working shell (21), and the nerve detection assembly (4) is clamped between the external sheath tube (22) and the ablation needle rod body (1).

7. The ablation needle with nerve probing functionality of claim 4, wherein: The nerve detection claw (41) is an elastic component and has a tendency to expand outward relative to the probe body (42), and can be extended out of the external sheath tube (22) and expanded when the nerve detection assembly (4) moves.

8. The ablation needle with nerve probing functionality of claim 1, wherein: A recovery assembly is further included, the recovery assembly has a recovery tendency when the nerve detection assembly (4) moves to extend out of the ablation needle shell (2).

9. The ablation needle with nerve probing functionality of claim 8, wherein: The recovery assembly is a spring (5), one end of the spring (5) is fixed to the ablation needle shell (2), and the other end is fixed to the probe body (42), and the spring (5) is pressed when the end of the nerve detection assembly (4) extends to the outside of the ablation needle shell (2).

10. The ablation needle with nerve probing functionality of claim 2, wherein: The ablation needle shell (2) is provided with a transmission hole, and the nerve detection assembly (4) is connected to an external device through the transmission hole.

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