CN218220299U - Radio frequency ablation electrode with nerve positioning function - Google Patents
Radio frequency ablation electrode with nerve positioning function Download PDFInfo
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- CN218220299U CN218220299U CN202221779902.6U CN202221779902U CN218220299U CN 218220299 U CN218220299 U CN 218220299U CN 202221779902 U CN202221779902 U CN 202221779902U CN 218220299 U CN218220299 U CN 218220299U
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Abstract
The utility model relates to a radio frequency ablation electrode with a nerve positioning function, which comprises a handle seat, a radio frequency electrode tool bit, a nerve electrical signal detector and a change-over switch; an electrode push-pull structure is arranged in the handle seat, a sleeve is arranged at the front end of the handle seat, and the front end of the electrode push-pull structure is positioned in the sleeve; the radio frequency electrode tool bit is arranged at the front end of the electrode push-pull structure; the nerve electrical signal detector is arranged at the front end of the sleeve or at the front end of a detector push-pull structure in the sleeve; the change-over switch is respectively and electrically connected with the radio-frequency electrode cutter head and the nerve electrical signal detector. The utility model discloses can help the doctor to fix a position the nerve in the radio frequency ablation surgery operation to avoid the radio frequency to melt the damage or cut off nerve.
Description
Technical Field
The utility model relates to a radiofrequency ablation electrode with a nerve positioning function, belonging to the technical field of medical instruments.
Background
The plasma technology uses low-frequency (100 KHz) electric energy to excite normal saline (NaCl) to generate plasma, and the generated high-speed charged particles can break molecular bonds to crack and vaporize tissues such as protein and the like intoH 2 、O 2 、CO 2 、N 2 And low molecular weight gases such as methane. If the low-frequency stable electric field of 100KHz is used, high-speed charged particles with larger kinetic energy are finally formed, and molecular bonds are directly broken. Moreover, the adopted electric field frequency is low, compared with a high-frequency electric field, the friction heat generation among molecules is greatly reduced, and the processes of cutting, ablation, hemostasis and the like are all completed within 40-70 ℃, so that the low-temperature effect is realized. In conclusion, the plasma technology can generate plasma under normal saline to perform low-temperature ablation and cutting on tissues, and has the advantages of multiple functions, no smoke, no carbonization, less bleeding, quick healing and the like, so the plasma technology is widely applied to soft tissue cutting, ablation, blood coagulation and drying in surgical operations. At present, the radio frequency ablation electrode manufactured by adopting the plasma technology is mainly applied to the surgical fields of ear, nose and throat, sports medicine, spine and the like. In the surgical treatment of ligament and intervertebral disc protrusion in spinal surgery, breakthrough surgical results are obtained.
During surgery, radiofrequency ablation procedures often entail the risk of surgical accidents resulting in the nerves in the surgical field being ablated or severed, leading to local loss of function. The patient is paralyzed, inconvenient to walk, the motor function of muscles is lost and the like, which seriously affect the life health, cause permanent pain and burden of the patient and family members, and cause the long-term expenditure of national medical insurance. It is highly desirable to develop a technique for preventing the nerve from being damaged or severed by ablation during the rf ablation procedure.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at: aiming at the problems in the prior art, the radio frequency ablation electrode with the nerve positioning function is provided, and can help a doctor to position nerves in a radio frequency ablation surgical operation, so that the radio frequency ablation damage or the nerve cutting is avoided.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a radiofrequency ablation electrode with a nerve positioning function comprises a handle seat and a radiofrequency electrode tool bit; the device is characterized by also comprising a nerve electrical signal detector and a change-over switch; an electrode push-pull structure is arranged in the handle seat, a sleeve is arranged at the front end of the handle seat, and the front end of the electrode push-pull structure is positioned in the sleeve; the radio frequency electrode tool bit is arranged at the front end of the electrode push-pull structure; the nerve electrical signal detector is arranged at the front end of the sleeve or at the front end of a detector push-pull structure in the sleeve; the change-over switch is respectively and electrically connected with the radio-frequency electrode tool bit and the nerve electrical signal detector.
The structure is simultaneously provided with a radio frequency electrode cutter head and a nerve electrical signal detector, and a selector switch can control the switching of the radio frequency electrode cutter head and the nerve electrical signal detector to ensure that at most one can obtain energy and the other can lose energy at the same time; the radio frequency electrode cutter head extends out or retracts into the sleeve along with the push-pull of the electrode push-pull structure, the nerve electrical signal detector is positioned at the front end of the sleeve, or the nerve electrical signal detector extends out or retracts into the sleeve along with the push-pull of the detector push-pull structure.
When the nerves need to be positioned, the electrode push-pull structure drives the radio-frequency electrode cutter head to retract into the sleeve, the change-over switch controls the nerve electric signal detector to obtain energy and the radio-frequency electrode cutter head to lose energy, and then the nerves are directly detected and positioned in the target position range; or after the radio-frequency electrode cutter head retracts into the sleeve, the nerve electrical signal detector extends out of the sleeve through the detector push-pull structure, the selector switch is used for controlling the nerve electrical signal detector to obtain energy and the radio-frequency electrode cutter head to lose energy, and then the nerve is detected and positioned in the target position range.
When radio frequency ablation is needed, the electrode push-pull structure drives the radio frequency electrode cutter head to extend out of the sleeve, and the change-over switch controls the radio frequency electrode cutter head to obtain energy and the nerve electrical signal detector to lose energy, so that the radio frequency ablation operation can be implemented in a target position range; or the nerve electrical signal detector retracts into the sleeve by the detector push-pull structure, the radio-frequency electrode tool bit is driven by the electrode push-pull structure to extend out of the sleeve, the radio-frequency electrode tool bit is controlled by the change-over switch to be energized and the nerve electrical signal detector is controlled to be de-energized, and then the radio-frequency ablation operation can be carried out within the range of the target position.
This may assist the physician in locating the nerve during rf ablation surgery in clinical practice, thereby avoiding rf ablation damage or nerve severing.
The utility model discloses following preferred scheme can also be adopted:
preferably, the detector push-pull structure comprises a connecting rod, the front end of the connecting rod is positioned in the sleeve and is fixedly connected with the nerve electrical signal detector, and the rear end of the connecting rod is provided with an elbow; the handle seat is provided with a sliding groove for the elbow to slide.
More preferably, the movement direction of the connecting rod is parallel to the axial direction of the handle seat.
More preferably, the nerve electrical signal detector is electrically connected with a detector lead, and the detector lead is connected with an external nerve function monitoring device; the change-over switch is electrically connected with the nerve electrical signal detector through a detector lead.
More preferably, a detector connecting cable is further arranged on the outer side of the handle seat; one end of the detector connecting cable penetrates through the side wall of the handle seat and is electrically connected with a detector conducting wire, and the other end of the detector connecting cable is connected with a corresponding interface of external nerve function monitoring equipment through a cable interface.
By adopting the preferred structure, the push-pull structure of the detector and the specific detailed characteristics of the related structure of the detector can be further optimized.
Preferably, the electrode push-pull structure comprises a push-pull rod, the push-pull rod is positioned at the rear end of the handle seat, and the front end of the push-pull rod is positioned inside the handle seat; the movement direction of the push-pull rod is parallel to the axial direction of the handle seat; an electrode sheath is arranged in the sleeve, the radio-frequency electrode cutter head is arranged at the front end of the electrode sheath, and the rear end of the electrode sheath is fixedly connected with the front end of the push-pull rod.
More preferably, the radio frequency electrode cutter head is electrically connected with an electrode lead, the electrode lead is positioned in the electrode sheath, and the electrode lead is connected with external radio frequency ablation equipment; the change-over switch is electrically connected with the radio-frequency electrode cutter head through an electrode lead.
More preferably, an electrode connecting cable is further arranged on the outer side of the handle seat; one end of the electrode connecting cable penetrates into the rear end of the push-pull rod and is electrically connected with the electrode lead, and the other end of the electrode connecting cable is connected with a corresponding interface of external radio frequency ablation equipment through a cable interface.
With this preferred construction, the electrode push-pull construction and the specific details of the electrode-related construction can be further optimized.
Preferably, the switch is arranged outside the handle seat, or the push-pull rod, or the handle seat.
Preferably, have the radiofrequency ablation electrode of neural locate function still including the locating part concurrently, the locating part is "V" font, the one end and the handle seat joint of locating part, and its other end and push-and-pull rod joint.
By adopting the preferred scheme, the specific detailed structural characteristics can be further optimized.
The utility model discloses can help the doctor to fix a position the nerve in the radio frequency ablation surgery operation to avoid the radio frequency to melt the damage or cut off nerve.
Drawings
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention.
Fig. 2 is an enlarged schematic view of the area a of fig. 1.
Fig. 3 is an electrical schematic diagram of embodiment 1 of the present invention.
Fig. 4 is a schematic diagram of a push-pull structure of the detector in embodiment 1 of the present invention.
Fig. 5 is an enlarged schematic view of a region B in fig. 4.
Detailed Description
Example 1
As shown in fig. 1 to 5, the radiofrequency ablation electrode with a nerve location function of the present embodiment includes a handle seat 01, a radiofrequency electrode tool bit 05, a nerve electrical signal detector 06, and a switch 07; an electrode push-pull structure is arranged inside the handle seat 01, a sleeve 02 is arranged at the front end of the handle seat 01, and the front end of the electrode push-pull structure is positioned in the sleeve 02; the radio frequency electrode tool bit 05 is arranged at the front end of the electrode push-pull structure; the nerve electrical signal detector 06 is arranged at the front end of the sleeve 02 or at the front end of a detector push-pull structure in the sleeve 02; the switch 07 is electrically connected with the radio frequency electrode cutter head 05 and the nerve electrical signal detector 06 respectively.
Specifically, the detector push-pull structure comprises a connecting rod 15, the front end of the connecting rod 15 is positioned in the sleeve 02 and is fixedly connected with the nerve electrical signal detector 06, and the rear end of the connecting rod 15 is provided with an elbow 16; the handle seat 01 is provided with a sliding groove 17 for the elbow 16 to slide. The movement direction of the connecting rod 15 is parallel to the axial direction of the handle holder 01.
The nerve electric signal detector 06 is electrically connected with a detector lead 09, and the detector lead 09 is connected with external nerve function monitoring equipment; the selector switch 07 is electrically connected with the nerve electrical signal detector 06 through a detector lead 09. The outer side of the handle seat 01 is also provided with a detector connecting cable 11; one end of the detector connecting cable 11 penetrates through the side wall of the handle seat 01 and is electrically connected with a detector lead 09, and the other end of the detector connecting cable 11 is connected with a corresponding interface of external nerve function monitoring equipment through a cable interface 13.
Specifically, the electrode push-pull structure comprises a push-pull rod 03, the push-pull rod 03 is positioned at the rear end of the handle seat 01, and the front end of the push-pull rod 03 is positioned inside the handle seat 01; the movement direction of the push-pull rod 03 is parallel to the axial direction of the handle seat 01; an electrode sheath 04 is arranged in the sleeve 02, the radio-frequency electrode tool bit 05 is arranged at the front end of the electrode sheath 04, and the rear end of the electrode sheath 04 is fixedly connected with the front end of the push-pull rod 03.
The radio frequency electrode cutter head 05 is electrically connected with an electrode lead 08, the electrode lead 08 is positioned in the electrode sheath 04, and the electrode lead 08 is connected with external radio frequency ablation equipment; the switch 07 is electrically connected with the radio frequency electrode bit 05 through an electrode lead 08. An electrode connecting cable 10 is also arranged outside the handle seat 01; one end of an electrode connecting cable 10 penetrates into the rear end of the push-pull rod 03 and is electrically connected with an electrode lead 08, and the other end of the electrode connecting cable 10 is connected with a corresponding interface of external radiofrequency ablation equipment through a cable interface 12.
The switch 07 is disposed outside the handle seat 01, the push-pull rod 03, or the handle seat 01 (in this embodiment, the switch 07 is disposed outside the push-pull rod 03).
In addition, the present embodiment further includes a limiting member 14, the limiting member 14 is in a "V" shape, one end of the limiting member 14 is connected to the handle seat 01 in a clamping manner, and the other end is connected to the push-pull rod 03 in a clamping manner.
The specific application example is as follows:
the nerve positioning monitoring device is electrically connected with the nerve electric signal detector, and the radio frequency ablation device is electrically connected with the radio frequency electrode cutter head. In this way the following objectives are achieved:
(1) The method has the following performance:
#1 Performance: under the control of the radio frequency ablation equipment, the radio frequency ablation performance of the radio frequency electrode cutter head is realized.
#2 Performance: under the control of the nerve location monitoring equipment, the nerve location performance is realized.
(2) In clinical practice, it should be ensured that only one of the #1 and #2 capabilities is released (i.e., at most one is enabled and the other is disabled) at the same time, which is controlled by the switch such that at most one of the radiofrequency ablation device and the nerve location monitoring device is in a connected state at the same time to produce efficacy. Thus, the switching of the performance and the function equipment is realized.
(3) In clinical practice, the nerve positioning monitoring device is used in combination with a nerve electric signal detector in contact with a target area, so that nerve positioning performance can be provided for an operator, and when a nerve electric signal is captured, a prompt can be sent to the operator.
In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent replacement or equivalent transformation fall within the protection scope required by the utility model.
Claims (10)
1. A radiofrequency ablation electrode with a nerve positioning function comprises a handle seat and a radiofrequency electrode tool bit; the device is characterized by also comprising a nerve electric signal detector and a selector switch; an electrode push-pull structure is arranged in the handle seat, a sleeve is arranged at the front end of the handle seat, and the front end of the electrode push-pull structure is positioned in the sleeve; the radio frequency electrode tool bit is arranged at the front end of the electrode push-pull structure; the nerve electrical signal detector is arranged at the front end of the sleeve or at the front end of a detector push-pull structure in the sleeve; the change-over switch is respectively and electrically connected with the radio-frequency electrode tool bit and the nerve electrical signal detector.
2. The radio frequency ablation electrode with the nerve positioning function as claimed in claim 1, wherein the detector push-pull structure comprises a connecting rod, the front end of the connecting rod is positioned in the sleeve and fixedly connected with the nerve electrical signal detector, and the rear end of the connecting rod is provided with an elbow; the handle seat is provided with a sliding groove for the elbow to slide.
3. The radio frequency ablation electrode with the nerve positioning function as claimed in claim 2, wherein the movement direction of the connecting rod is parallel to the axial direction of the handle seat.
4. The radiofrequency ablation electrode with the nerve location function as claimed in claim 2, wherein the nerve electrical signal detector is electrically connected with a detector lead, and the detector lead is connected with an external nerve function monitoring device; the change-over switch is electrically connected with the nerve electric signal detector through a detector lead.
5. The radio frequency ablation electrode with the nerve locating function as claimed in claim 4, wherein a detector connecting cable is further arranged outside the handle seat; one end of the detector connecting cable penetrates through the side wall of the handle seat and is electrically connected with a detector wire, and the other end of the detector connecting cable is connected with a corresponding interface of external nerve function monitoring equipment through a cable interface.
6. The radiofrequency ablation electrode with the nerve positioning function as claimed in claim 1, wherein the electrode push-pull structure comprises a push-pull rod, the push-pull rod is located at the rear end of the handle seat, and the front end of the push-pull rod is located inside the handle seat; the movement direction of the push-pull rod is parallel to the axial direction of the handle seat; an electrode sheath is arranged in the sleeve, the radio-frequency electrode cutter head is arranged at the front end of the electrode sheath, and the rear end of the electrode sheath is fixedly connected with the front end of the push-pull rod.
7. The radio-frequency ablation electrode with the nerve positioning function as claimed in claim 6, wherein the radio-frequency electrode cutter head is electrically connected with an electrode lead, the electrode lead is positioned in the electrode sheath, and the electrode lead is connected with an external radio-frequency ablation device; the change-over switch is electrically connected with the radio-frequency electrode cutter head through an electrode lead.
8. The radiofrequency ablation electrode with the nerve positioning function as claimed in claim 7, wherein an electrode connecting cable is further arranged outside the handle seat; one end of the electrode connecting cable penetrates into the rear end of the push-pull rod and is electrically connected with the electrode lead, and the other end of the electrode connecting cable is connected with a corresponding interface of external radio frequency ablation equipment through a cable interface.
9. The radiofrequency ablation electrode with the nerve location function of any one of claims 6 to 8, wherein the switch is disposed outside the handle seat, or the push-pull rod, or the handle seat.
10. The radio frequency ablation electrode with the nerve location function according to any one of claims 6 to 8, further comprising a limiting member, wherein the limiting member is in a "V" shape, one end of the limiting member is connected with the handle seat in a snap-fit manner, and the other end of the limiting member is connected with the push-pull rod in a snap-fit manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221779902.6U CN218220299U (en) | 2022-07-11 | 2022-07-11 | Radio frequency ablation electrode with nerve positioning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221779902.6U CN218220299U (en) | 2022-07-11 | 2022-07-11 | Radio frequency ablation electrode with nerve positioning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218220299U true CN218220299U (en) | 2023-01-06 |
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ID=84676550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221779902.6U Active CN218220299U (en) | 2022-07-11 | 2022-07-11 | Radio frequency ablation electrode with nerve positioning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218220299U (en) |
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2022
- 2022-07-11 CN CN202221779902.6U patent/CN218220299U/en active Active
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