阅读说明：本技术 一种带多角度温度监测的射频消融电极 (Radio frequency ablation electrode with multi-angle temperature monitoring function ) 是由 劳海锋 于 2021-06-28 设计创作，主要内容包括：一种带多角度温度监测的射频消融电极,包括穿刺针组件、穿刺针管组件以及射频消融电极组件,穿刺针组件包括穿刺针芯及穿刺针芯帽,穿刺针芯帽固定安装在穿刺针芯后端,穿刺针管组件包括穿刺针管本体以及穿刺针管帽,穿刺针管帽固定安装在穿刺针管本体后端,射频消融电极组件包括电极管本体以及电极头,电极头上设置有多角度温度探头,电极管本体上设置有调节多角度温度探头探测角度的调节键组件。与现有技术相比,本发明通过在电极头上设置多角度温度探头,可更密集的监测消融区域的实时温度,不仅可以监测电极头的消融温度,还可判断电极头外融区域的实时温度,使得射频毁损手术进行时,可以对整个消融区域周边是否消融完成进行直观的观测。(The utility model provides a take multi-angle temperature monitoring's radiofrequency ablation electrode, including puncture needle subassembly, pjncture needle subassembly and radiofrequency ablation electrode subassembly, pjncture needle subassembly includes puncture needle core and puncture needle core cap, puncture needle core cap fixed mounting is in puncture needle core rear end, the pjncture needle subassembly includes puncture needle tube body and puncture needle tube cap, puncture needle tube cap fixed mounting is in puncture needle tube body rear end, radiofrequency ablation electrode subassembly includes electrode tube body and electrode tip, be provided with multi-angle temperature probe on the electrode tip, be provided with the adjustment key subassembly of adjusting multi-angle temperature probe detection angle on the electrode tube body. Compared with the prior art, the multi-angle temperature probe is arranged on the electrode head, so that the real-time temperature of the ablation region can be monitored more densely, the ablation temperature of the electrode head can be monitored, the real-time temperature of the ablation region outside the electrode head can be judged, and whether the ablation of the periphery of the whole ablation region is completed or not can be visually observed when a radio-frequency destructive operation is carried out.)

1. A radio frequency ablation electrode with multi-angle temperature monitoring is characterized by comprising a puncture needle assembly, a puncture needle tube assembly and a radio frequency ablation electrode assembly, wherein the puncture needle assembly comprises a puncture needle core and a puncture needle core cap, the puncture needle core cap is fixedly arranged at the rear end of the puncture needle core, the puncture needle tube assembly comprises a puncture needle tube body and a puncture needle tube cap, the puncture needle tube cap is fixedly arranged at the rear end of the puncture needle tube body, the radio frequency ablation electrode assembly comprises an electrode tube body and an electrode tip, the electrode tip is arranged at the front end of the electrode tip body, a multi-angle temperature probe is arranged on the electrode tip, an adjusting key assembly for adjusting the detection angle of the multi-angle temperature probe is arranged on the electrode tube body, the puncture needle tube body is sleeved at the periphery of the puncture needle core, the electrode tip body is sleeved at the periphery of the puncture needle tube body, the electrode head body rear end is provided with the electrode holder, the electrode holder is connected with the electrode communication socket, the electrode communication socket is connected with the electrode communication plug, the electrode communication plug passes through cable conductor connection radio frequency host computer connecting plug.

2. The RF ablation electrode with multi-angle temperature monitoring of claim 1, wherein the multi-angle temperature probe comprises a four-jaw umbrella-shaped rod probe with adjustable angle, the four-jaw umbrella-shaped rod probe is installed at the electrode head end, the unfolding angle of the four-jaw umbrella-shaped rod probe can be adjusted through an adjusting key assembly, the adjusting key assembly comprises an extension knob, a push rod and an adjusting elastic sheet, the extension knob is arranged at the rear end of the electrode tube body and can axially move along the electrode tube body when being rotated, the push rod is arranged inside the electrode tube body, the front end of the push rod abuts against the four-jaw umbrella-shaped rod probe, and the rear end of the push rod abuts against the extension knob.

3. The radio frequency ablation electrode with the multi-angle temperature monitoring function as claimed in claim 2, wherein four axial elongated grooves are formed in the periphery of the electrode tip, four umbrella-shaped rods of the four-jaw umbrella-shaped rod probe are correspondingly arranged in the elongated grooves respectively, a hook is arranged at the rear end of each umbrella-shaped rod, a pin hole into which the hook can be inserted is formed in the rear end of each elongated groove, the hook is inserted into the pin hole to hook the adjusting elastic sheet and abut against the front end of the ejector rod, the four umbrella-shaped rods are driven by the hooks to expand angles when the front end of the ejector rod is jacked in, and the adjusting elastic sheet retracts into the four umbrella-shaped rods through the hooks after the front end of the ejector rod retracts.

4. The radio frequency ablation electrode with multi-angle temperature monitoring of claim 3, wherein the groove depth of the elongated groove is greater than or equal to the diameter of the circumcircle of the umbrella shaft section.

5. The RF ablation electrode assembly of claim 4, wherein the umbrella-shaped shaft includes a main body, a fully-surrounding annular cutting edge, and a temperature probe, the fully-surrounding annular cutting edge is disposed around the main body and the temperature probe, the direction of the fully-surrounding annular cutting edge is identical to the direction of the deployment angle of the umbrella-shaped shaft, a sheath groove is disposed in the elongated groove, the fully-surrounding cutting edge is hidden in the sheath groove in the closed state, the temperature probe is disposed at the tip of the umbrella-shaped shaft, the temperature probe is in the shape of a capsule, and the outer portion of the temperature probe is surrounded by the fully-surrounding cutting edge.

6. The RF ablation electrode with multi-angle temperature monitoring of claim 5, wherein the extension knob is provided with a start position mark and an angle indication mark, and the electrode communication socket is mounted on the extension knob shaft center.

7. The radio frequency ablation electrode with multi-angle temperature monitoring of claim 5, wherein an insulating coating is disposed on the electrode tip.

Technical Field

The invention relates to the technical field of medical equipment, in particular to a radio frequency ablation electrode with multi-angle temperature monitoring function.

Background

The radio frequency ablation therapy is a physical nerve block therapy, the protein of the radio frequency electrode is solidified and deformed by utilizing the function of controllable temperature and the parts of ganglia, nerve trunks, nerve roots, intervertebral disc tissues and the like to block the conduction of nerve impulses or retract and relieve the compression of the intervertebral disc protrusion, a doctor controls the temperature and the time of heating a needle point by adjusting the magnitude and the duration of the current sending quantity to control the temperature and the time of heating the needle point, so that the effect of controlling the size of a damaged area is achieved, and the radio frequency is one of safe and effective methods for treating the pain caused by the destructive block of the nerve and can be safely used for a plurality of first-level sensory neurons of somatic sensory nerves, such as semilunar ganglia, posterior root segments of spinal nerves, lateral vertebral ganglia and the like.

When the existing product is used for radiofrequency ablation, a temperature detection point is generally arranged at the electrode head end, whether the temperature of an ablation area outside the electrode head end is proper or not is determined, and thus, when a radiofrequency ablation operation is performed, whether the ablation of the periphery of the whole ablation area is completed or not can not be observed visually.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a radio frequency ablation electrode with multi-angle temperature monitoring, which comprises the following components:

the technical scheme of the invention is realized as follows:

a radio frequency ablation electrode with multi-angle temperature monitoring comprises a puncture needle assembly, a puncture needle tube assembly and a radio frequency ablation electrode assembly, wherein the puncture needle assembly comprises a puncture needle core and a puncture needle core cap, the puncture needle core cap is fixedly arranged at the rear end of the puncture needle core, the puncture needle tube assembly comprises a puncture needle tube body and a puncture needle tube cap, the puncture needle tube cap is fixedly arranged at the rear end of the puncture needle tube body, the radio frequency ablation electrode assembly comprises an electrode tube body and an electrode tip, the electrode tip is arranged at the front end of the electrode tip body, a multi-angle temperature probe is arranged on the electrode tip, an adjusting key assembly for adjusting the detection angle of the multi-angle temperature probe is arranged on the electrode tube body, the puncture needle tube body is sleeved at the periphery of the puncture needle core, the electrode tip body is sleeved at the periphery of the puncture needle tube body, and an electrode base is arranged at the rear end of the electrode tip body, the electrode seat is connected with an electrode communication socket, the electrode communication socket is connected with an electrode communication plug, and the electrode communication plug is connected with a radio frequency host machine connecting plug through a cable.

Preferably, the multi-angle temperature probe comprises a four-jaw umbrella-shaped rod probe head with an adjustable angle, the four-jaw umbrella-shaped rod probe head is arranged at the electrode head end, the unfolding angle of the four-jaw umbrella-shaped rod probe head can be adjusted through an adjusting key assembly, the adjusting key assembly comprises an extending knob, a push rod and an adjusting elastic sheet, the extending knob is arranged at the rear end of the electrode tube body and can axially move along the electrode tube body during rotating, the push rod is arranged inside the electrode tube body, the front end of the push rod abuts against the four-jaw umbrella-shaped rod probe head, and the rear end of the push rod abuts against the extending knob.

Preferably, four axial elongated grooves are formed in the periphery of the electrode tip, four umbrella-shaped rods of the four-claw umbrella-shaped rod detection head are correspondingly arranged in the elongated grooves respectively, a hook is arranged at the rear end of each umbrella-shaped rod, a pin hole into which the hook can be inserted is formed in the rear end of each elongated groove, the hook is inserted into the pin hole to hook the adjusting elastic sheet and abut against the front end of the ejector rod, the front end of the ejector rod drives the four umbrella-shaped rods to expand angles through the hook when jacking, and after the front end of the ejector rod retracts, the adjusting elastic sheet retracts into the four umbrella-shaped rods through the hook.

Preferably, the groove depth of the elongated groove is greater than or equal to the diameter of a circumscribed circle of the shaft section of the umbrella shaft.

Preferably, the umbrella-shaped rod comprises an umbrella-shaped rod body, a fully-surrounding annular cutting edge and a temperature detecting head, the fully-surrounding annular cutting edge is distributed on the periphery of the umbrella-shaped rod body and the temperature detecting head, the direction of the fully-surrounding annular cutting edge is consistent with the direction of the unfolding angle of the umbrella-shaped rod, a sheath groove fully surrounding the cutting edge is arranged in the elongated groove, the fully-surrounding cutting edge is hidden in the sheath groove in the folding state, the temperature detecting head is located at the tip end of the umbrella-shaped rod, the temperature detecting head is in a capsule shape, and the outside of the temperature detecting head is surrounded by the fully-surrounding cutting edge.

Preferably, the extension knob is provided with a start position mark and an angle indication mark, and the electrode communication socket is mounted on the axis of the extension knob.

Preferably, an insulating coating is disposed on the electrode head.

Compared with the prior art, the invention has the following beneficial effects:

according to the radio frequency ablation electrode with the multi-angle temperature monitoring function, the multi-angle temperature probe is arranged on the electrode head, so that the real-time temperature of an ablation area can be monitored more densely, the ablation temperature of the electrode head can be monitored, the real-time temperature of the ablation area outside the electrode head can be judged, and whether the ablation of the periphery of the whole ablation area is completed or not can be visually observed when a radio frequency damage operation is carried out.

Drawings

FIG. 1 is a schematic structural view of a radio frequency ablation electrode with multi-angle temperature monitoring according to the present invention;

FIG. 2 is a schematic structural view of the lancet assembly of the present invention;

FIG. 3 is a schematic structural view of the spike assembly of the present invention;

FIG. 4 is a schematic structural view of the RF ablation electrode assembly of the present invention (with the four-jaw umbrella probe closed);

FIG. 5 is a schematic structural view of the RF ablation electrode assembly of the present invention (in a four-jaw umbrella probe deployed state);

FIG. 6 is a schematic structural view of the electrode tip of the present invention (in a deployed state with a four-jaw umbrella probe);

FIG. 7 is a schematic structural view of the electrode tip of the present invention (without a four-jaw umbrella probe);

fig. 8 is a schematic view of the extension knob according to the present invention.

In the figure: the puncture needle assembly comprises a puncture needle assembly 100, a puncture needle core 110, a puncture needle core cap 120, a puncture needle tube assembly 200, a puncture needle tube body 210, a puncture needle tube cap 220, a radiofrequency ablation electrode assembly 300, an electrode tube body 310, a long strip-shaped groove 321, an umbrella-shaped rod 322, a hook 323, a pin hole 324, an umbrella-shaped rod body 325, a fully-surrounding annular cutting edge 326, a temperature probe 327, an electrode head 320, a four-claw umbrella-shaped rod probe 330, an extension knob 340, a starting position mark 341, an angle indication mark 342, an ejector rod 350, an adjusting elastic sheet 360, an electrode holder 410, an electrode communication socket 420, an electrode communication plug 430, a cable 440 and a radiofrequency host connecting plug 450.

Detailed Description

The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown.

As shown in fig. 1 to 8, a radio frequency ablation electrode with multi-angle temperature monitoring comprises a puncture needle assembly 100, a puncture needle assembly 200 and a radio frequency ablation electrode assembly 300, wherein the puncture needle assembly 100 comprises a puncture needle core 110 and a puncture needle core cap 120, the puncture needle core cap 120 is fixedly mounted at the rear end of the puncture needle core 110, the puncture needle assembly 200 comprises a puncture needle tube body 210 and a puncture needle tube cap 220, the puncture needle tube cap 220 is fixedly mounted at the rear end of the puncture needle tube body 210, the radio frequency ablation electrode assembly 300 comprises an electrode tube body 310 and an electrode head 320, the electrode head 320 is arranged at the front end of the electrode head body 310, a multi-angle temperature probe is arranged on the electrode head 320, an adjusting key assembly for adjusting the detection angle of the multi-angle temperature probe is arranged on the electrode tube body 310, the puncture needle tube body 210 is sleeved on the periphery of the puncture needle core 110, the electrode head body 310 is sleeved on the periphery of the puncture needle tube body 210, the rear end of the electrode head body 310 is provided with an electrode holder 410, the electrode holder 410 is connected with an electrode communication socket 420, the electrode communication socket 420 is connected with an electrode communication plug 430, and the electrode communication plug 430 is connected with a radio frequency host machine connecting plug 450 through a cable 440.

The multi-angle temperature probe comprises a four-jaw umbrella-shaped rod probe head 330 with an adjustable angle, the four-jaw umbrella-shaped rod probe head 330 is arranged at the end of an electrode tip 320, the unfolding angle of the four-jaw umbrella-shaped rod probe head 330 can be adjusted through an adjusting key assembly, the adjusting key assembly comprises an extending knob 340, a push rod 350 and an adjusting elastic sheet 360, the extending knob 340 is arranged at the rear end of the electrode tube body 310 and can axially move along the electrode tube body 310 during rotating, the push rod 350 is arranged inside the electrode tube body 310, the front end of the push rod 350 abuts against the four-jaw umbrella-shaped rod probe head 330, and the rear end of the push rod 350 abuts against the extending knob 340.

Four axial elongated grooves 321 are formed in the periphery of the electrode head 320, four umbrella-shaped rods 322 of the four-jaw umbrella-shaped rod detecting head 321 are correspondingly arranged in the elongated grooves 321 respectively, a hook 323 is arranged at the rear end of each umbrella-shaped rod 322, a pin hole 324 into which the hook 321 can be inserted is formed in the rear end of each elongated groove 321, the hook 321 is inserted into the pin hole 324 to hook the adjusting elastic sheet 360 and abut against the front end of the push rod 350, the four umbrella-shaped rods 322 are driven by the hook 321 to expand an angle when the front end of the push rod 350 is pushed forward, and the adjusting elastic sheet 350 retracts into the four umbrella-shaped rods 322 through the hook 321 after the front end of the push rod 350 retracts.

The depth of the elongated groove 321 is greater than or equal to the diameter of the circumscribed circle of the axial section of the umbrella-shaped rod 322, so that the umbrella-shaped rod 322 is ensured to be recovered in the elongated groove 321 and not to be higher than the outer surface of the electrode head 320.

The umbrella-shaped rod 322 comprises an umbrella-shaped rod body 325, a fully-surrounding annular cutting edge 326 and a temperature detecting head 327, the fully-surrounding annular cutting edge 326 is distributed at the periphery of the umbrella-shaped rod body 325 and the temperature detecting head 326, the direction of the fully-surrounding annular cutting edge 326 is consistent with the direction of the unfolding angle of the umbrella-shaped rod 322, a sheath groove fully-surrounding the cutting edge is arranged in the elongated groove 321, the fully-surrounding cutting edge is hidden in the sheath groove in the folding state, the temperature detecting head 326 is positioned at the tip end of the umbrella-shaped rod 322, the temperature detecting head 326 is in a capsule shape, and the outside of the temperature detecting head is surrounded by the fully-surrounding cutting edge.

The extension knob 340 is provided with a start position mark 341 and an angle indication mark 342, the electrode communication socket 420 is installed on the axis of the extension knob 340, the scales on the electrode communication socket 420 are divided into 12 grids, each time the extension knob 340 passes through one scale, the umbrella-shaped rod 322 is opened by 2.5 degrees, and the total 12 grids can be opened to 30 degrees.

An insulating coating is provided on the electrode head 320.

The four-claw umbrella-shaped rod probe 321 comprises four umbrella-shaped rods 322 which are sequentially arranged at the end of the electrode tip 320 of the radiofrequency ablation electrode assembly, wherein the number of the four umbrella-shaped rods is 4 in total, and each umbrella-shaped rod is arranged at every 90 degrees. When the electrode head 320 is closed, the four umbrella-shaped rods 322 are retracted in the 4 strip-shaped grooves 321 at the end of the electrode head 320, and the umbrella-shaped rods 322 cannot be higher than the arc surface at the end of the electrode head 320. When the extension knob 340 is rotated, the four umbrella-shaped rods 322 simultaneously start to open, the expansion angle of a single umbrella-shaped rod 322 can reach 30 degrees at most, the umbrella-shaped rods can be gradually and sequentially expanded according to the angle, the umbrella-shaped rods 322 are screwed into one grid of knob scales each time, the umbrella-shaped rods can be expanded by 2.5 degrees, and the expansion angle is the included angle between the umbrella-shaped rods 322 and the electrode tube body 310.

The use method of the invention comprises the following steps:

the puncture needle core is utilized to puncture to the area to be treated, the radio frequency ablation electrode with multi-angle temperature monitoring enters the action area through the puncture needle sleeve, and whether the accurate position is reached is observed under CT;

the four-claw umbrella-shaped rod probe is adjusted by an extension knob and is unfolded to a proper angle;

and starting to perform radio frequency ablation on the affected part, and observing the real-time temperature value monitored by the four-claw umbrella-shaped rod probe so as to judge the state of the radio frequency ablation.

The invention has the following beneficial effects:

1) the probe with the extensible four-claw umbrella-shaped rod is arranged at the electrode head end, so that the real-time temperature of an ablation area can be monitored more densely;

2) the unfolding angle of the four-claw umbrella-shaped rod probe can be controlled by the over-stretching knob.

3) The umbrella-shaped rod of the four-claw umbrella-shaped rod probe is provided with a fully-surrounded cutting edge, and can be used for cutting an ablated tissue in real time when being unfolded or folded, so that smooth folding and undamped stretching are realized;

4) the four-claw umbrella-shaped rod probe can be hidden in the electrode tube body;

5) the four-claw umbrella-shaped rod probe body is subjected to insulation treatment without heat damage danger;

6) the puncture needle, the puncture needle tube and the electrode are matched to perform minimally invasive puncture until the affected part is suffered;

according to the structure and the using process of the radio frequency ablation electrode with the multi-angle temperature monitoring function, the real-time temperature of the ablation area can be monitored more densely by arranging the multi-angle temperature probe on the electrode head, the ablation temperature of the electrode head can be monitored, the real-time temperature of the ablation area outside the electrode head can be judged, and whether the ablation of the periphery of the whole ablation area is completed or not can be visually observed when a radio frequency damage operation is carried out.