CN204106192U - Radio frequency ablation needle - Google Patents
Radio frequency ablation needle Download PDFInfo
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- CN204106192U CN204106192U CN201420542522.XU CN201420542522U CN204106192U CN 204106192 U CN204106192 U CN 204106192U CN 201420542522 U CN201420542522 U CN 201420542522U CN 204106192 U CN204106192 U CN 204106192U
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- electrode needle
- radio frequency
- electrode
- needle
- frequency ablation
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Abstract
This utility model relates to a kind of radio frequency ablation needle, comprises puncture tube and handle, and described taper knob, at the afterbody of described puncture tube, is also provided with several electrode needle, and electrode needle described in several is all positioned at described puncture tube; Be provided with several control keys outside described handle, described control key correspondence controls the axially reciprocating of at least one electrode needle along puncture tube.The beneficial effects of the utility model are: can irregularly shaped according to focus, corresponding adjustment one or one group of electrode needle elongate or shorten, and every root electrode needle all connects measurement and control unit, and local data is accurate alternately, desirable ablation range is issued in guarantee patient safety prerequisite, safe and effective; Handle is provided with control key, and one pushes away one draws and can realize independent control, easy to operate, controls flexibly; Also be provided with scale mark, be convenient to the length judging that electrode needle need adjust intuitively, be beneficial to and reach desirable therapeutic effect.
Description
Technical field
This utility model belongs to medical instruments field, is specifically related to a kind of radio frequency ablation needle.
Background technology
Radio-frequency ablation procedure generally adopts local anesthesia, through CT or B ultrasonic Scan orientation, by the Distance geometry angle measured, focus is punctured, after electrode needle is thrust lesion center, launch electrode, then by impedance, the isoparametric change of temperature of monitoring lesion tissue, automatically regulate the output of radio-frequency (RF) ablation, start to carry out radio-frequency (RF) ablation and make lesion tissue produce large-scale coagulation necrosis fast.Radio-frequency electrode pin can to make in tissue temperature more than 60 DEG C, and abnormal cell is dead, produces necrotic zone; If the tissue temperature of local is more than 100 DEG C, lesion tissue and the essence generation coagulation necrosis around organ, a very large spherical coagulation necrosis district can be produced during treatment, the thermotherapy district of 43 DEG C ~ 60 DEG C is also had outside coagulation necrosis district, in this region, abnormal cell can be killed, and normal cell can recover.Therefore, radio-frequency ablation procedure is widely used in clinical operation.
Current clinical treatment uses multipole ablation needle, after it reaches target location, need to open minute hand and melt, and each minute hand length of run is consistent, and can only shorten simultaneously or extend, cause there are problems in it uses.As needs shorten certain minute hand length, during to avoid the vital tissue structure existed in the direction, other minute hand length can shorten with it, thus makes the tumour ablation scope in other directions inadequate, causes not reaching expection therapeutic purposes; Otherwise if thoroughly melt tumor object on certain direction to reach, and when extending certain minute hand length, other minute hand length can extend together thereupon, thus it is too much to cause part minute hand to enter human normal tissue, excessive to the damage of patient's normal surrounding tissue.
Utility model content
In order to solve prior art Problems existing, this utility model provides a kind of radio frequency ablation needle, and it has easy and simple to handle, controls flexibly, to be applicable to the features such as Clinical practice.
The technical scheme that this utility model adopts is:
A kind of radio frequency ablation needle, comprise puncture tube and handle, described taper knob, at the afterbody of described puncture tube, is also provided with several electrode needle, and electrode needle described in several is all positioned at described puncture tube; Be provided with several control keys outside described handle, described control key correspondence controls the axially reciprocating of at least one electrode needle along puncture tube.
Further, described in several, electrode needle is divided into many groups, and its group number is equal with the quantity of control key, and the turnover of electrode needle described in described control key correspondence control one group moves back and forth.
Further, the quantity of described electrode needle is equal with the quantity of described control key, and the quantity of described electrode needle is equal with described group of number.
Further, be also provided with several connecting rods, described connecting rod is positioned at described handle, and described connecting rod and one_to_one corresponding equal with the quantity of described electrode needle, the two ends of each described connecting rod are connected with corresponding control key and corresponding electrode needle respectively.
Further, each described connecting rod inside is provided with the passage being communicated with described connecting rod two ends, and be provided with measurement and control unit in described connecting rod passage, described measurement and control unit is connected with each described electrode needle afterbody.
Preferably, be also provided with the main pin of electrode, the main pin of described electrode is arranged on the top of described puncture tube, described handle is also provided with and controls the reciprocating main pin control key of described electrode main pin turnover.
Further, be also provided with the through hole that can pass in and out electrode needle, described through hole is distributed on the sidewall of described puncture tube front portion, the quantity of described through hole and one_to_one corresponding equal with the quantity of described electrode needle.
Further, the sidewall of described handle is also provided with some push/pull slots, described push/pull slot is offered along the axis of described handle; A corresponding control key is set in each described push/pull slot.
Preferably, the inner side of described push/pull slot is provided with the several semicircular locking projection of continuous print, and described projection distributes along described push/pull slot length direction; It is protruding that described control key is provided with screens, and described screens is protruding to be engaged each other with described locking projection.
Preferably, the length direction along described push/pull slot is provided with scale mark in its both sides, and described scale mark is positioned at the outer surface of described handle.
The beneficial effects of the utility model are: located in advance by the main pin of the electrode of puncture tube front end, and ablation areas is wanted in locking; Irregularly shaped according to focus, corresponding adjustment one or one group of electrode needle elongate or shorten, control accurately, patient is injured little; Every root electrode needle all connects measurement and control unit, and local data is accurate alternately, is issued to desirable ablation range in guarantee patient safety prerequisite, safe and effective; Handle is provided with control key, and one pushes away one draws and can realize independent control, shrinks freely, easy to operate, controls flexibly; Also be provided with scale mark, be convenient to the length judging that electrode needle is stretched out intuitively, really accomplish conformally to melt and thoroughly melt, reach desirable therapeutic effect.
Accompanying drawing explanation
Fig. 1 is the perspective view of radio frequency ablation needle of the present utility model;
Fig. 2 is the planar structure schematic diagram of radio frequency ablation needle of the present utility model;
Fig. 3 is the B-B section plan along Fig. 2.
In figure: 1, puncture tube; 2, hands handle; 3, through hole; 4, control key; 5, push/pull slot; 6, electrode needle; 7, connecting rod; 41, main pin control key; 61, the main pin of electrode.
Detailed description of the invention
As Figure 1-3, this utility model provides a kind of radio frequency ablation needle, comprises puncture tube 1 and handle 2, and described handle 2 is enclosed within the afterbody of described puncture tube 1, is also provided with several electrode needle 6, and electrode needle 6 described in several is all positioned at described puncture tube 1.The sidewall of described puncture tube 1 front portion is distributed with through hole 3, and the quantity of described through hole 3 and one_to_one corresponding equal with the quantity of described electrode needle 6, described electrode needle 6 can be stretched out in through hole 3, thrusts focus.Also be provided with the main pin 61 of electrode, the main pin of described electrode is arranged on the top of described puncture tube 1, directly can stretch out from the top of puncture tube 1, after completing radio frequency, and regracting.
Several control keys 4 are provided with outside described handle 2, described control key 4 correspondence controls one or one group of electrode needle 6, make it along the axially reciprocating of puncture tube 1, namely stretch out or retract that (control key 4 promotes electrode needle 6, make electrode needle 6 extend to puncture tube 1 via through hole 3 outside, be and stretch out; Control key 4 pulls electrode needle 6, electrode needle 6 is collapsed in puncture tube 1 completely via through hole 3, is retraction).When control key 4 controls one group of electrode needle 6, its quantity and electrode needle 6 groups of numbers are equal; When control key 4 controls an electrode needle 6, its quantity is equal with the number of electrode needle 6.
Connecting rod 7 is also provided with in described handle 2, described connecting rod 7 and one_to_one corresponding equal with the quantity of described electrode needle 6, the two ends of each described connecting rod 7 are connected with corresponding control key 4 and corresponding electrode needle 6 respectively, and namely each connecting rod 7 is all only connected with an electrode needle 6.Described connecting rod 7 is provided with the passage being communicated with its two ends, and be provided with the described measurement and control unit for data interaction in described passage, described measurement and control unit is connected with the afterbody of described electrode needle 6.
The sidewall of described handle 2 is also provided with some push/pull slots 5, and described push/pull slot 5 is offered along the axis of described handle 2; Be provided with several semicircular locking inside it protruding, described projection distributes along described push/pull slot 5 length direction; Length direction along described push/pull slot 5 is provided with scale mark in its both sides, and described scale mark is in the outer surface of described handle.Arrange a described control key 4 in each described push/pull slot 5, it is protruding that described control key 4 is provided with screens, and when promoting control key 4 along push/pull slot 5 relative movement, described screens is protruding to be engaged each other with described locking projection.
After described puncture tube 1 is thrust focus by doctor, promote main pin control key 41 and release the main pin 61 of electrode, be located at the front end of focus, fix control key 41 by the projection of engagement thus the position of main for electrode pin 61 is fixed, can not slide in health or come off.Under the guiding of CT or B ultrasonic, according to shape, the size of focus different parts, by other control keys 4, electrode needle 6 is released from through hole 3, can according to the scale on push/pull slot 5 surface, its length released of interpretation, can extend the length of corresponding described electrode needle 6 to larger local lesion, the length of corresponding described electrode needle 6 can be shortened to less local lesion, thus make them match with focus respectively, fix control key 4 by the projection of engagement, locking therapentic part.After each electrode needle 6 all reaches assigned address, ablation can be started.By impedance, the isoparametric change of temperature of the measurement and control unit monitoring lesion tissue in described connecting rod 7, by the data wire that handle 2 connects, fed back to radio-frequency signal generator, the output of corresponding adjustment radio-frequency (RF) ablation, namely independent immunotherapy targeted autoantibody is given to zones of different, finally reach the conformal object melted, make treatment more safe and effective.
Therefore, this utility model is located in advance by the main pin 61 of the electrode of puncture tube 1 front end, and ablation areas is wanted in locking; Irregularly shaped according to focus, corresponding adjustment one or one group of electrode needle 6 elongate or shorten, control accurately, patient is injured little; Every root electrode needle 6 all connects measurement and control unit, and local data is accurate alternately, is issued to desirable ablation range in guarantee patient safety prerequisite, safe and effective; Handle is provided with control key 4, and one pushes away one draws and can realize independent control, shrinks freely, easy to operate, controls flexibly; Also be provided with scale mark, be convenient to the length judging that electrode needle 6 need adjust intuitively, really accomplish that suitable row melts and thoroughly melts, reach desirable therapeutic effect.
This utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but any change is done in its shape or structure; every have identical with the application or akin technical scheme, all drops within protection domain of the present utility model.
Claims (10)
1. a radio frequency ablation needle, comprises puncture tube and handle, and described taper knob, at the afterbody of described puncture tube, is characterized in that: be also provided with several electrode needle, and electrode needle described in several is all positioned at described puncture tube; Be provided with several control keys outside described handle, described control key correspondence controls the axially reciprocating of at least one electrode needle along puncture tube.
2. radio frequency ablation needle according to claim 1, is characterized in that: described in several, electrode needle is divided into many groups, and its group number is equal with the quantity of control key, and the turnover of electrode needle described in described control key correspondence control one group moves back and forth.
3. radio frequency ablation needle according to claim 2, is characterized in that: the quantity of described electrode needle is equal with the quantity of described control key, and the quantity of described electrode needle is equal with described group of number.
4. radio frequency ablation needle according to claim 3, it is characterized in that: be also provided with several connecting rods, described connecting rod is positioned at described handle, described connecting rod and one_to_one corresponding equal with the quantity of described electrode needle, the two ends of each described connecting rod are connected with corresponding control key and corresponding electrode needle respectively.
5. radio frequency ablation needle according to claim 4, is characterized in that: each described connecting rod inside is provided with the passage being communicated with described connecting rod two ends, and be provided with measurement and control unit in described connecting rod passage, described measurement and control unit is connected with described electrode needle afterbody.
6. radio frequency ablation needle according to claim 5, is characterized in that: be also provided with the main pin of electrode, and the main pin of described electrode is arranged on the top of described puncture tube, described handle is also provided with and controls the reciprocating main pin control key of described electrode main pin turnover.
7. radio frequency ablation needle according to claim 6, is characterized in that: be also provided with the through hole that can pass in and out electrode needle, and described through hole is distributed on the sidewall of described puncture tube front portion, the quantity of described through hole and one_to_one corresponding equal with the quantity of described electrode needle.
8. the radio frequency ablation needle according to any one of claim 1-7, is characterized in that: the sidewall of described handle is also provided with some push/pull slots, and described push/pull slot is offered along the axis of described handle; A corresponding described control key is set in each described push/pull slot.
9. radio frequency ablation needle according to claim 8, is characterized in that: the inner side of described push/pull slot is provided with the several semicircular locking projection of continuous print, and described projection distributes along described push/pull slot length direction; It is protruding that described control key is provided with screens, and described screens is protruding to be engaged each other with described locking projection.
10. radio frequency ablation needle according to claim 9, is characterized in that: the length direction along described push/pull slot is provided with scale mark in its both sides, and described scale mark is positioned at the outer surface of described handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542522.XU CN204106192U (en) | 2014-09-19 | 2014-09-19 | Radio frequency ablation needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542522.XU CN204106192U (en) | 2014-09-19 | 2014-09-19 | Radio frequency ablation needle |
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|---|---|
| CN204106192U true CN204106192U (en) | 2015-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420542522.XU Active CN204106192U (en) | 2014-09-19 | 2014-09-19 | Radio frequency ablation needle |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106037926A (en) * | 2016-05-16 | 2016-10-26 | 安隽医疗科技(南京)有限公司 | Needle rod telescopic regulating system of adjustable water injection ablation electrode needle |
| CN106308927A (en) * | 2016-08-22 | 2017-01-11 | 北京市肿瘤防治研究所 | Multi-tip extension type radiofrequency ablation electrode needle |
| CN110179538A (en) * | 2019-04-28 | 2019-08-30 | 华中科技大学 | A kind of conformal ablation needle of multijaw having nesting type structure |
| CN110338903A (en) * | 2019-08-07 | 2019-10-18 | 杭州睿笛生物科技有限公司 | A kind of puncture needle and electrode delivery device for leading electrode |
| CN111603239A (en) * | 2020-04-22 | 2020-09-01 | 哈尔滨医科大学 | Microwave device for tumor ablation treatment |
| TWI706769B (en) * | 2018-12-24 | 2020-10-11 | 財團法人工業技術研究院 | Ablation device |
| US11135004B2 (en) | 2018-12-24 | 2021-10-05 | Industrial Technology Research Institute | Ablation device |
| CN114469307A (en) * | 2021-12-27 | 2022-05-13 | 浙江大学医学院附属第一医院 | Multi-pole controllable pulse electric field ablation device |
-
2014
- 2014-09-19 CN CN201420542522.XU patent/CN204106192U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106037926A (en) * | 2016-05-16 | 2016-10-26 | 安隽医疗科技(南京)有限公司 | Needle rod telescopic regulating system of adjustable water injection ablation electrode needle |
| CN106037926B (en) * | 2016-05-16 | 2020-07-24 | 安隽医疗科技(南京)有限公司 | Needle bar telescopic adjusting system of adjustable water injection ablation electrode needle |
| CN106308927A (en) * | 2016-08-22 | 2017-01-11 | 北京市肿瘤防治研究所 | Multi-tip extension type radiofrequency ablation electrode needle |
| TWI706769B (en) * | 2018-12-24 | 2020-10-11 | 財團法人工業技術研究院 | Ablation device |
| US11135004B2 (en) | 2018-12-24 | 2021-10-05 | Industrial Technology Research Institute | Ablation device |
| CN110179538A (en) * | 2019-04-28 | 2019-08-30 | 华中科技大学 | A kind of conformal ablation needle of multijaw having nesting type structure |
| CN110179538B (en) * | 2019-04-28 | 2021-06-11 | 华中科技大学 | Multi-claw conformal ablation needle with nested structure |
| CN110338903A (en) * | 2019-08-07 | 2019-10-18 | 杭州睿笛生物科技有限公司 | A kind of puncture needle and electrode delivery device for leading electrode |
| WO2021022677A1 (en) * | 2019-08-07 | 2021-02-11 | 杭州睿笛生物科技有限公司 | Puncture needle used for guiding electrode, and electrode conveying device |
| CN111603239A (en) * | 2020-04-22 | 2020-09-01 | 哈尔滨医科大学 | Microwave device for tumor ablation treatment |
| CN114469307A (en) * | 2021-12-27 | 2022-05-13 | 浙江大学医学院附属第一医院 | Multi-pole controllable pulse electric field ablation device |
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| C14 | Grant of patent or utility model | ||
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