CN203408109U - Radio-frequency ablation needle shielding sleeve - Google Patents
Radio-frequency ablation needle shielding sleeve Download PDFInfo
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- CN203408109U CN203408109U CN201220408430.3U CN201220408430U CN203408109U CN 203408109 U CN203408109 U CN 203408109U CN 201220408430 U CN201220408430 U CN 201220408430U CN 203408109 U CN203408109 U CN 203408109U
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- heat
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- needle
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Abstract
The utility model relates to a radio-frequency ablation needle shielding sleeve. The radio-frequency ablation needle shielding sleeve comprises a needle tip heat-insulating layer and a needle cylinder heat-insulating layer, wherein the needle tip heat-insulating layer is connected with the needle cylinder heat-insulating layer; a heat-permeating through hole is formed in the left side of the needle cylinder heat-insulating layer; a heat-insulating sleeve with adjustable length is arranged outside the needle cylinder heat-insulating layer; a heat-conducting metal inner layer is arranged in the inner layer of the heat-insulating sleeve with adjustable length; the outer layer of the heat-insulating sleeve with adjustable length is provided with a heat-insulating outer layer with adjustable length connected with the heat-conducting metal inner layer in a matching way; annular ports which are shrunk outwards are formed in the two ends of the heat-insulating sleeve with adjustable length; the length of the heat-permeating through hole is 10cm; the length of the heat-insulating sleeve with adjustable length is 20cm. The radio-frequency ablation needle shielding sleeve has the beneficial effects that due to the unique design that the heat-permeating through hole is formed in one side, when ablation is carried out near a special part and at a thyroid gland in the way of radio frequency, the nerve on the opposite side can be prevented from being damaged; due to the unique design of the heat-insulating sleeve with adjustable length, precise treatment on tumors with different sizes can be performed by adjusting the length of the shielding sleeve.
Description
Technical field
This utility model relates to a kind of radio frequency ablation needle housing.
Background technology
Radiofrequency art is a kind of invasive tumor original position treatment technology, by means of image technology guiding such as ultrasonic, scope or CT, electrode needle is directly inserted in tumor, by radio-frequency (RF) energy, made focus local organization produce high temperature, dry, finally solidify and deactivation soft tissue and tumor.Most of human body parenchymal tumor needs 45 ℃～50 ℃, can make cell death.Because tissue temperature extends and reduces (apart from electrode) with conduction distance, the temperature at electrode needle and organizational interface place must be far above 50 ℃, so that all can reach treatment temperature in large area damage field.Current radio frequency ablation needle has different specifications according to the difference of tumor, but when the temperature of locating when electrode needle and organizational interface must be far above 50 ℃, to closing on privileged sites, melts and thyroid radio-frequency (RF) ablation, can cause damage to the nerve of offside; For the big or small tumor of difference, relatively fixing because of the length of electrode needle, easily cause electrode needle radio frequency region and lesions position Incomplete matching, easily damage not diseased region or affect therapeutic effect.
Utility model content
The purpose of this utility model is to provide a kind of radio frequency ablation needle housing, with the temperature that overcomes currently available technology electrode needle and organizational interface place, during far above 50 ℃, to closing on privileged sites, melts and thyroid radio-frequency (RF) ablation, can cause damage to the nerve of offside; For the big or small tumor of difference, relatively fixing because of the length of electrode needle, easily cause electrode needle radio frequency region and lesions position Incomplete matching, easily damage not diseased region or affect therapeutic effect above shortcomings.
The purpose of this utility model is to be achieved through the following technical solutions:
A housing, comprises syringe needle thermal insulation layer and syringe thermal insulation layer, and described syringe needle thermal insulation layer connects syringe thermal insulation layer, and syringe thermal insulation layer left side is provided with diathermanous through hole.
Further, described syringe thermal insulation layer is provided with adjustable length collet outward, the internal layer of adjustable length collet is provided with heat-conducting metal internal layer, adjustable length collet skin is provided with the adjustable length heat insulation skin in mating connection with heat-conducting metal internal layer, and described adjustable length collet two ends are provided with the ring port of outside contraction.
Preferably, described diathermanous through hole length is 10CM, and the length of described adjustable length collet is 20CM.
The beneficial effects of the utility model are: the particular design of one-sided diathermanous through hole, melt and thyroid radio-frequency (RF) ablation closing on privileged sites, and can protect the nerve of offside injury-free; The unique design of adjustable length collet, for the big or small tumor of difference, housing can be adjusted length, accomplishes accurate treatment.
Accompanying drawing explanation
With reference to the accompanying drawings this utility model is described in further detail below.
Fig. 1 is the structural representation of a kind of radio frequency ablation needle housing described in this utility model embodiment;
Fig. 2 is the cutaway view of a kind of radio frequency ablation needle housing described in this utility model embodiment.
In figure:
1, syringe needle thermal insulation layer; 2, syringe thermal insulation layer; 3, diathermanous through hole; 4, adjustable length collet; 5, heat-conducting metal internal layer; 6, the heat insulation skin of adjustable length.
The specific embodiment
As shown in Figure 1-2, a kind of radio frequency ablation needle housing described in this utility model embodiment, comprise syringe needle thermal insulation layer 1 and syringe thermal insulation layer 2, described syringe needle thermal insulation layer 1 connects syringe thermal insulation layer 2, syringe thermal insulation layer 2 left sides are provided with diathermanous through hole 3, the outer adjustable length collet 4 that is provided with of described syringe thermal insulation layer 2, the internal layer of adjustable length collet 4 is provided with heat-conducting metal internal layer 5, adjustable length collet 4 skins are provided with the adjustable length in mating connection with heat-conducting metal internal layer 5 heat insulation outer 6, described adjustable length collet 4 two ends are provided with the ring port of outside contraction.
Described diathermanous through hole 3 length are 10CM, and the length of described adjustable length collet 4 is 20CM.
During concrete enforcement, heat-conducting metal internal layer be metal material and radio frequency ablation needle be affixed and, syringe needle thermal insulation layer 1, syringe thermal insulation layer 2 and adjustable length collet 4 are thermal stabilization shield material, above-mentioned thermal stabilization shield cover material can adopt German nano grade inorganic material SiC thermal insulation layer or coating, thickness is in 1cm, can heatproof to 1000 degree Celsius, can meet 100 degrees Celsius of the limits of working temperature of current radio frequency ablation needle, and reach effect of heat insulation.
During concrete use, radio frequency ablation needle housing is set in radio frequency ablation needle, the Scan orientation carrying out according to B ultrasonic or CT, till adjustable length collet 4 is adjusted to the applicable treatment in diathermanous through hole 3 extending parts according to the situation of concrete lesions position, afterwards radio-frequency (RF) ablation be needled into focus center and keep diathermanous through hole over against focus, launch electrode, when electronic generator produces radio-frequency current (460Khz), by exposed radio frequency ablation needle, polar molecule and ion in its surrounding tissue are vibrated, friction, then be converted into heat energy, its heat energy conducts to periphery in time gradually, thereby make local organization cell protein that irreversible thermocoagulation degeneration occur, downright bad, reach the object for the treatment of.
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 do any variation in its shape or structure; every have identical with a application or akin technical scheme, within all dropping on protection domain of the present utility model.
Claims (4)
1. a radio frequency ablation needle housing, comprises syringe needle thermal insulation layer (1) and syringe thermal insulation layer (2), it is characterized in that: described syringe needle thermal insulation layer (1) connects syringe thermal insulation layer (2), and syringe thermal insulation layer (2) left side is provided with diathermanous through hole (3).
2. a kind of radio frequency ablation needle housing according to claim 1, it is characterized in that: the outer adjustable length collet (4) that is provided with of described syringe thermal insulation layer (2), the internal layer of adjustable length collet (4) is provided with heat-conducting metal internal layer (5), and adjustable length collet (4) skin is provided with the adjustable length heat insulation skin (6) in mating connection with heat-conducting metal internal layer (5).
3. a kind of radio frequency ablation needle housing according to claim 2, is characterized in that: described adjustable length collet (4) two ends are provided with the ring port of outside contraction.
4. according to a kind of radio frequency ablation needle housing described in claim 2 or 3, it is characterized in that: described diathermanous through hole (3) length is 10cm, and the length of described adjustable length collet (4) is 20cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220408430.3U CN203408109U (en) | 2012-08-16 | 2012-08-16 | Radio-frequency ablation needle shielding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220408430.3U CN203408109U (en) | 2012-08-16 | 2012-08-16 | Radio-frequency ablation needle shielding sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203408109U true CN203408109U (en) | 2014-01-29 |
Family
ID=49971038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220408430.3U Expired - Lifetime CN203408109U (en) | 2012-08-16 | 2012-08-16 | Radio-frequency ablation needle shielding sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203408109U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104046948A (en) * | 2014-05-26 | 2014-09-17 | 浙江大学 | Surface modified radio frequency ablation needle and application thereof |
| CN104073762A (en) * | 2014-06-23 | 2014-10-01 | 中国科学院宁波材料技术与工程研究所 | Method for improving surface smoothness of radiofrequency ablation treatment needle |
| CN104546120A (en) * | 2015-01-14 | 2015-04-29 | 浙江伽奈维医疗科技有限公司 | Bleeding stop needle core and biopsy needle |
| CN110327108A (en) * | 2019-08-13 | 2019-10-15 | 上海导向医疗系统有限公司 | Adjustable cryoablation needle |
| CN113796954A (en) * | 2021-10-11 | 2021-12-17 | 杭州市第一人民医院 | Ablation needle capable of changing heating angle |
-
2012
- 2012-08-16 CN CN201220408430.3U patent/CN203408109U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104046948A (en) * | 2014-05-26 | 2014-09-17 | 浙江大学 | Surface modified radio frequency ablation needle and application thereof |
| CN104046948B (en) * | 2014-05-26 | 2016-02-24 | 浙江大学 | Surface modification radio frequency ablation needle and application thereof |
| CN104073762A (en) * | 2014-06-23 | 2014-10-01 | 中国科学院宁波材料技术与工程研究所 | Method for improving surface smoothness of radiofrequency ablation treatment needle |
| CN104073762B (en) * | 2014-06-23 | 2016-09-14 | 中国科学院宁波材料技术与工程研究所 | A kind of method improving radiofrequency ablation therapy wire surface smoothness |
| CN104546120A (en) * | 2015-01-14 | 2015-04-29 | 浙江伽奈维医疗科技有限公司 | Bleeding stop needle core and biopsy needle |
| CN110327108A (en) * | 2019-08-13 | 2019-10-15 | 上海导向医疗系统有限公司 | Adjustable cryoablation needle |
| CN113796954A (en) * | 2021-10-11 | 2021-12-17 | 杭州市第一人民医院 | Ablation needle capable of changing heating angle |
| CN113796954B (en) * | 2021-10-11 | 2023-03-28 | 杭州市第一人民医院 | Ablation needle capable of changing heating angle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |