CN204698676U - Adjustable radio-frequency ablation electrode needle - Google Patents
Adjustable radio-frequency ablation electrode needle Download PDFInfo
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- CN204698676U CN204698676U CN201520088309.0U CN201520088309U CN204698676U CN 204698676 U CN204698676 U CN 204698676U CN 201520088309 U CN201520088309 U CN 201520088309U CN 204698676 U CN204698676 U CN 204698676U
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Abstract
Adjustable radio-frequency ablation electrode needle, comprise: handle, the needle tubing be arranged on described handle, the tube for transfusion be connected with described needle tubing, the RF power line be connected with described needle tubing, described tube for transfusion is connected with medical fluid injector, and described RF power line to be arranged in Electric Wires & Cables and to be connected with radio-frequency signal generator; Described needle tubing and the handle fixing base be arranged in described handle fix, and described needle tubing overcoat has medical sleeve pipe; The slide rail portion extended along described needle tubing is provided with in described handle, described slide rail portion is provided with can along the slide block of described slide rail portion movement, described medical sleeve pipe and described slide block fix, and drive described medical sleeve pipe to move, to change the size of needle tubing exposed parts when described slide block moves.Ablating electrode pin of the present utility model singlehanded can carry out the adjustment operation of ablation range, easily rocks the problem occurring site of puncture displacement when solving both hands compounding practice, and is carried out the accurate limiting of sliding by slide rail engaging support mechanism, and limit accuracy is high.
Description
Technical field
This utility model belongs to technical field of medical instruments, particularly relates to a kind of radio-frequency ablation electrode needle being used for the treatment of the tumor such as hepatocarcinoma, pulmonary carcinoma.
Background technology
Radio frequency tumour ablation art is the new technique of a kind of entity tumor minimally-invasive treatment in recent years risen, due to compared with traditional treatment, there is the advantages such as curative effect is high, wound is little, misery is little, recovery is fast, no sequel, indication are wide, patient can be made to exempt the hardship of operating on, therefore development rapidly, extensively for doctor and patient accepts.
Radio-frequency ablation electrode needle is the key element in radiofrequency ablation therapy system, and during for oncotherapy, radio-frequency ablation electrode needle directly inserts in patient body, plays decisive role to therapeutic effect.Radio-frequency ablation electrode needle can be divided into single needle type and spininess type two class by the number of electrode needle quantity, along with the development of radio-frequency ablation technique, have also appeared the type such as water cooled electrode pin, injectable medicinal liquid formula electrode needle afterwards.
At present, single needle type radio-frequency ablation electrode needle both domestic and external is mainly fixed, namely ablation range cannot regulate, use fixed ablating electrode pin clinically, cannot to different size, difform tumor forming range controlled melt stove, practicality is lower, application risk is larger, especially to significant points, such as thyroid tumor, substantially cannot use.In order to overcome the deficiency that fixed ablating electrode pin exists on Clinical practice, occur adopting screw mechanism to adjust the radio-frequency ablation electrode needle of ablation range, the type radio-frequency ablation electrode needle in use needs doctor's both hands compounding practice, hold operating grip on the other hand, another hand-screw turns spiral knob to adjust ablation range, operation easier is larger, in operating process, both hands coordinate, easily rock the problem occurring site of puncture displacement, cause secondary disaster, secondly relevant to the tact skill of manual operation, operator are unskilled, are not easy accurate limiting adjusting range.Therefore, invent a kind of adjustment operation singlehanded can carrying out ablation range, again can the adjustable radio frequency ablation needle of accurate limiting adjusting range necessary.
Utility model content
The purpose of this utility model is to provide the adjustable radio-frequency ablation electrode needle of a kind of ablation range, according to different adjusting range forming range controlled melt stove, clinical practice is treated in the precision ablation of different size entity tumor.
To achieve these goals, this utility model takes following technical solution:
Adjustable radio-frequency ablation electrode needle, comprise: handle, the needle tubing be arranged on described handle, the tube for transfusion be connected with described needle tubing, the RF power line be connected with described needle tubing, described tube for transfusion is connected with medical fluid injector, and described RF power line to be arranged in Electric Wires & Cables and to be connected with radio-frequency signal generator; Described needle tubing and the handle fixing base be arranged in described handle fix, and described needle tubing overcoat has medical sleeve pipe; The slide rail portion extended along described needle tubing is provided with in described handle, described slide rail portion is provided with can along the slide block of described slide rail portion movement, described medical sleeve pipe and described slide block fix, and drive described medical sleeve pipe to move, to change the size of needle tubing exposed parts when described slide block moves.
Handle of the present utility model is provided with the push button be connected with described slide block.
Assemble transparent windows and rule outside the slide rail portion of handle of the present utility model, the position indicatrix of described slide block is alignd with the rule of handle.
The sidewall that slide rail portion of the present utility model contacts with described slide block is provided with spaced apart buckle protruding, described slide block is provided with the slip buckle be interlocked with described buckle projection.
Tube for transfusion of the present utility model comprises tube for transfusion leading portion and tube for transfusion extension, quick detach line check valve is provided with between described tube for transfusion leading portion and described tube for transfusion extension, described tube for transfusion extension is connected with described medical fluid injector, described Electric Wires & Cables comprises Electric Wires & Cables leading portion and Electric Wires & Cables extension, is provided with quick detach electrical connector between described Electric Wires & Cables leading portion and described Electric Wires & Cables extension.
Thermocouple is provided with in needle tubing of the present utility model, described thermocouple perforation enters needle tubing inside described in described tube for transfusion, its front end edge and extends and be fixed on by point for measuring temperature in the needle point of described needle tubing, described thermocouple is connected with thermocouple compensation, and described thermocouple compensation and described RF power line are arranged in Electric Wires & Cables.
Quick detach line check valve of the present utility model comprises Rule check valve female joint and Rule check valve male joint, and described tube for transfusion leading portion tail end arranges Rule check valve female joint, and described tube for transfusion extension front end arranges Rule check valve male joint.
Tube for transfusion extension of the present utility model and described Electric Wires & Cables extension are fixed together by card pipe thread.
Card pipe thread of the present utility model is see-through card pipe thread.
Tube for transfusion of the present utility model is transparent tube for transfusion.
From above technical scheme, the needle tubing of adjustable ablating electrode pin of the present utility model is fixed, medical sleeve pipe is set outside needle tubing, medical sleeve pipe is connected with the slide block be arranged in handle, when slide block moves forward and backward along the slide rail portion in handle, medical sleeve pipe can be driven to move, make medical casing pipe sleeve at the position change of needle tubing, thus adjustment ablation range, this utility model adopts slide mechanism to change the position of the outer medical sleeve pipe of needle tubing, singlehanded can carry out the adjustment operation of ablation range, simple to operate, reliable and stable, spacing adjusting range is accurate, forming range is accurately controlled melts stove.The radio-frequency ablation electrode needle that ablation range of the present utility model is adjustable, can adjust different size, difform tumour ablation, according to different adjusting range forming range controlled melt stove, reach precision ablation treatment effect, apply comparatively strong clinically, risk is lower.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment;
Fig. 2 is the sectional view of this utility model radio frequency needle main body;
Fig. 3 is the partial enlargement structural representation of I part in Fig. 1;
Fig. 4 is the partial structurtes schematic diagram of this utility model embodiment handle;
Fig. 5 is the assembly structure schematic diagram of slide rail portion and slide block in this utility model embodiment handle.
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in more detail.
Detailed description of the invention
As shown in Figure 1, adjustable radio-frequency ablation electrode needle of the present utility model comprises needle tubing 1, handle 2, Electric Wires & Cables 3, tube for transfusion 4, syringe union joint 5 and appliance plug 6.Composition graphs 2 and Fig. 3 simultaneously, needle tubing 1 comprises needle point 1-1 and cannula body 1-2, and needle point 1-1 is positioned at cannula body 1-2 front end, and needle point 1-1 is provided with and the medicine liquid outlet 1a be communicated with in cannula body 1-2, and needle tubing 1 is fixed on handle 2.There is medical sleeve pipe 7 at needle tubing 1 overcoat, and the front portion of needle tubing 1 is exposed.Form cavity in handle 2, be provided with needle tubing holder 2-1 in handle 2, needle tubing 1 rear portion to be inserted in needle tubing holder 2-1 and is fixed with needle tubing holder 2-1, and needle tubing 1 rear end is connected with tube for transfusion 4.As a preferred version of the present utility model, the tube for transfusion 4 of the present embodiment comprises tube for transfusion leading portion 4-1 and tube for transfusion extension 4-2, tube for transfusion leading portion 4-1 is communicated with needle tubing 1 and stretches out outside handle 2, tube for transfusion leading portion 4-1 is connected with tube for transfusion extension 4-2 by quick detach line check valve 8, the quick detach line check valve 8 of the present embodiment comprises Rule check valve female joint and Rule check valve male joint, the tail end of tube for transfusion leading portion 4-1 arranges Rule check valve female joint, the front end of tube for transfusion extension 4-2 arranges Rule check valve male joint, adopt Rule check valve can realize tube for transfusion leading portion to be connected with the quick of tube for transfusion extension.Tube for transfusion extension 4-2 tail end arranges syringe union joint 5 (female Luer), for being connected with medical fluid injector (not shown).
Be provided with the slide rail portion 2-2 extended along cannula body 1-1 in handle 2, slide rail portion 2-2 is provided with slide block 2-3, slide block 2-3 can be movable in handle 2 along slide rail portion 2-2.Medical sleeve pipe 7 fixes with slide block 2-3, drives medical sleeve pipe 7 to move when slide block 2-3 moves, thus changes the size of cannula body 1-2 exposed part.Handle 2 is provided with the push button 10 be connected with slide block 2-3, during with finger push push button 10, slide block 2-3 moves and drives medical sleeve pipe 7 to move on slide rail portion 2-2, thus regulates the ablation range of electrode needle.Assemble transparent windows and rule (non-label) outside the slide rail portion of handle 2, the position indicatrix of slide block 2-3 is alignd with the rule of handle 2.
Can also arrange the thermocouple 11 being used for thermometric and temperature control further in this utility model electrode needle, to measure the treatment temperature organized by ablation lesion in real time, thermocouple can be armouring nickel chromium-nickel silicon thermocouple.Thermocouple 11 is arranged in handle 2, thermocouple 11 perforation enter tube for transfusion leading portion 4-1 after, its front end edge cannula body 1-2 inside extend point for measuring temperature 11a is fixed in needle point 1-1, glue sealing is mended in perforation place of tube for transfusion leading portion 4-1, the lead-out wire of thermocouple 11 is connected with thermocouple compensation 12, and thermocouple compensation 12 is arranged in Electric Wires & Cables 3.As a preferred embodiment, Electric Wires & Cables 3 is divided into Electric Wires & Cables leading portion 3-1 and Electric Wires & Cables extension 3-2 equally, the present embodiment tube for transfusion leading portion 4-1 part is arranged in Electric Wires & Cables leading portion 3-1, its back segment stretches out from Electric Wires & Cables leading portion 3-1, and tube for transfusion also can not be located in Electric Wires & Cables.RF power line 13 is welded with the inner side that needle tubing holder 2-1 fixes at needle tubing 1, RF power line 13 is also located in Electric Wires & Cables 3, the Electric Wires & Cables front end 3-1 being provided with thermocouple compensation 12 and RF power line 13 to be connect soon with Electric Wires & Cables extension 3-2 by quick detach electrical connector 14 and is connected, and is provided with thermocouple compensation and RF power line in Electric Wires & Cables extension 3-2 equally.The Electric Wires & Cables of the present embodiment and Electric Wires & Cables extended line all adopt the high-elastic flexible cable of replica TPE, and it is connected with radio-frequency signal generator (not shown) by electric connector 6.The present embodiment adopts card pipe thread 15 tube for transfusion extension and Electric Wires & Cables extension to be fixed together, and puts neatly to keep cable.
When doctor operates, can hold handle 2 by one hand, promote push button 10 with thumb, band movable slider 2-3 along slide rail portion 2-2 slide anteroposterior, and drives medical sleeve pipe 7 to move further.Composition graphs 4 and Fig. 5, as this utility model further preferred version, the sidewall that slide rail portion 2-2 contacts with slide block 2-3 is provided with the protruding 2-2a of buckle, in the present embodiment, the length d of the protruding 2-2a of buckle is 1mm, slide block 2-3 is provided with the slip buckle 2-3a that protruding 2-2a is interlocked with buckle, the protruding 2-2a of buckle on the slip buckle 2-3a of slide block 2-3 and slide rail portion 2-2 is in sliding process, often slip 1mm fastens 1 time, the position indicatrix of slide block 2-3 is alignd one by one with the rule of handle 2, can hear simultaneously clear and melodious " clickly " fastening sound, so that operator accurately controls ablation range.
Ablating electrode pin of the present utility model achieves the adjustment operation that one hand carries out ablation range, the problem occurring site of puncture displacement is easily rocked when solving both hands compounding practice, and the accurate limiting of sliding is carried out by slide rail engaging support mechanism, limit accuracy reaches 1mm, and on handle, correspondence markings is provided with the graduated scale of 1mm precision.
Simultaneously, in a preferred embodiment, electrode needle body (needle tubing and handle portion) is connected by quick detach connector (quick detach line check valve and quick detach electric connector) with extended line main body (tube for transfusion extension and Electric Wires & Cables extension part), two parts can connect by quick detach soon, but also can be the same with existing conventional electrodes pin, tube for transfusion and Electric Wires & Cables are overall structure, inseparable.During Clinical practice detachable electrode pin, first in Rule check valve female joint of the tube for transfusion leading portion 4-1 tail end of electrode needle body, inject treatment medicinal liquid, until the medicine liquid outlet 1a of needle point 1-1 discharges medicinal liquid, what complete electrode needle body medicine liquid channel is emptying, by injecting the air thoroughly got rid of in two parts medicine liquid channel, can effectively prevent in the air Injection body in medicine liquid channel, by the guiding of image technology (ultrasonic or CT, MR), find pathological tissues position accurately, electrode needle is inserted, completes Needle localization; In the syringe union joint 5 of tube for transfusion extension 4-2 tail end, inject treatment medicinal liquid, until medicinal liquid is discharged in Rule check valve male joint of tube for transfusion extension 4-2 front end, complete the emptying of tube for transfusion extension medicine liquid channel; Then syringe union joint 6 and medical fluid injector is made to keep being connected, connect the quick detach line check valve 8 on tube for transfusion leading portion 4-1 and tube for transfusion extension 4-2, connect the quick detach electrical connector 14 on Electric Wires & Cables leading portion 3-1 and Electric Wires & Cables extension 3-2, electric connector 6 radio-frequency signal generator on Electric Wires & Cables extension 3-2 is connected, treatment parameter is set and starts treatment.During treatment, thermocouple 11 measures the treatment temperature organized by ablation lesion in real time, treatment temperature is controlled between 70 DEG C-100 DEG C, makes the bare electrode surface of needle tubing 1 can not produce incrustation and carbonization, precisely controls ablation range, safe and reliable.In Clinical practice process, radio-frequency signal generator exports radio-frequency (RF) energy, simultaneously through tube for transfusion toward medicinal liquids such as saline injection, ethanol, chemotherapy liquid medicine in pathological tissues, ablation range can be increased further.Tube for transfusion of the present utility model and card pipe thread preferably use transparent medical material to make, and can know the situation seeing that inner medicinal liquid passes through, and can prevent from, because pipeline is separated, easily messy knotting problem occurs, succinctly facilitating simultaneously.Two parts can independent packaging, in clinical manipulation process, doctor can first by after electrode needle body Needle localization, connect again and extend pipeline, doctor carries out in the operating process of Needle localization finding pathological tissues accurately, not by the weight extending pipeline and the impact involved, after preventing that Needle localization is carried out to shallow tissue, because of own wt overweight generation puncture position offset problem, effectively can overcome the limitation in space in image documentation equipment, facilitate the various operational requirements of doctor, alleviate intensity and the pressure of doctor's operation, thus reach pathological tissues is precisely controlled, safe and reliable therapeutic effect.
Above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although be described in detail this utility model with reference to above-described embodiment, those of ordinary skill in the field are to be understood that, still can modify to detailed description of the invention of the present utility model or equivalent replacement, and not departing from any amendment of this utility model spirit and scope or equivalent replacement, it all should be encompassed among right of the present utility model.
Claims (10)
1. adjustable radio-frequency ablation electrode needle, comprise: handle, the needle tubing be arranged on described handle, the tube for transfusion be connected with described needle tubing, the RF power line be connected with described needle tubing, described tube for transfusion is connected with medical fluid injector, and described RF power line to be arranged in Electric Wires & Cables and to be connected with radio-frequency signal generator;
It is characterized in that:
Described needle tubing and the handle fixing base be arranged in described handle fix, and described needle tubing overcoat has medical sleeve pipe;
The slide rail portion extended along described needle tubing is provided with in described handle, described slide rail portion is provided with can along the slide block of described slide rail portion movement, described medical sleeve pipe and described slide block fix, and drive described medical sleeve pipe to move, to change the size of needle tubing exposed parts when described slide block moves.
2. adjustable radio-frequency ablation electrode needle as claimed in claim 1, is characterized in that: described handle is provided with the push button be connected with described slide block.
3. adjustable radio-frequency ablation electrode needle as claimed in claim 1 or 2, is characterized in that: assemble transparent windows and rule outside the slide rail portion of described handle, and the position indicatrix of described slide block is alignd with the rule of handle.
4. adjustable radio-frequency ablation electrode needle as claimed in claim 1, is characterized in that: the sidewall that described slide rail portion contacts with described slide block is provided with spaced apart buckle protruding, described slide block is provided with the slip buckle be interlocked with described buckle projection.
5. adjustable radio-frequency ablation electrode needle as claimed in claim 1, it is characterized in that: described tube for transfusion comprises tube for transfusion leading portion and tube for transfusion extension, quick detach line check valve is provided with between described tube for transfusion leading portion and described tube for transfusion extension, described tube for transfusion extension is connected with described medical fluid injector, described Electric Wires & Cables comprises Electric Wires & Cables leading portion and Electric Wires & Cables extension, is provided with quick detach electrical connector between described Electric Wires & Cables leading portion and described Electric Wires & Cables extension.
6. the adjustable radio-frequency ablation electrode needle as described in claim 1 or 5, it is characterized in that: in described needle tubing, be provided with thermocouple, described thermocouple perforation enters needle tubing inside described in described tube for transfusion, its front end edge and extends and be fixed on by point for measuring temperature in the needle point of described needle tubing, described thermocouple is connected with thermocouple compensation, and described thermocouple compensation and described RF power line are arranged in Electric Wires & Cables.
7. adjustable radio-frequency ablation electrode needle as claimed in claim 5, it is characterized in that: described quick detach line check valve comprises Rule check valve female joint and Rule check valve male joint, described tube for transfusion leading portion tail end arranges Rule check valve female joint, and described tube for transfusion extension front end arranges Rule check valve male joint.
8. adjustable radio-frequency ablation electrode needle as claimed in claim 5, is characterized in that: described tube for transfusion extension and described Electric Wires & Cables extension are fixed together by card pipe thread.
9. adjustable radio-frequency ablation electrode needle as claimed in claim 8, is characterized in that: described card pipe thread is see-through card pipe thread.
10. adjustable radio-frequency ablation electrode needle as claimed in claim 5, is characterized in that: described tube for transfusion is transparent tube for transfusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520088309.0U CN204698676U (en) | 2015-02-06 | 2015-02-06 | Adjustable radio-frequency ablation electrode needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520088309.0U CN204698676U (en) | 2015-02-06 | 2015-02-06 | Adjustable radio-frequency ablation electrode needle |
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| Publication Number | Publication Date |
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| CN204698676U true CN204698676U (en) | 2015-10-14 |
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| CN201520088309.0U Active CN204698676U (en) | 2015-02-06 | 2015-02-06 | Adjustable radio-frequency ablation electrode needle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104706420A (en) * | 2015-02-06 | 2015-06-17 | 珠海和佳医疗设备股份有限公司 | Adjustable radiofrequency ablation electrode needle |
| CN112022338A (en) * | 2019-06-04 | 2020-12-04 | 赛诺微医疗科技（浙江）有限公司 | Electroporation ablation electrode needle and treatment system using same |
-
2015
- 2015-02-06 CN CN201520088309.0U patent/CN204698676U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104706420A (en) * | 2015-02-06 | 2015-06-17 | 珠海和佳医疗设备股份有限公司 | Adjustable radiofrequency ablation electrode needle |
| CN112022338A (en) * | 2019-06-04 | 2020-12-04 | 赛诺微医疗科技（浙江）有限公司 | Electroporation ablation electrode needle and treatment system using same |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |