CN203564331U - Novel microwave ablation needle - Google Patents
Novel microwave ablation needle Download PDFInfo
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- CN203564331U CN203564331U CN201320763037.0U CN201320763037U CN203564331U CN 203564331 U CN203564331 U CN 203564331U CN 201320763037 U CN201320763037 U CN 201320763037U CN 203564331 U CN203564331 U CN 203564331U
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- microwave
- ablation needle
- microwave ablation
- handle
- liquid coolant
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- 239000000110 cooling liquid Substances 0.000 claims abstract description 12
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 239000002826 coolant Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
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Abstract
The utility model discloses a novel microwave ablation needle. The novel microwave ablation needle comprises a microwave radiator, a handle, a radio-frequency coaxial cable and a cooling system, wherein one end of the microwave radiator is connected with the front end of the handle by a knife rod; the cooling system consists of a cooling-liquid discharging pipe, a cooling-liquid feeding pipe, a peristaltic pump and cooling liquid. The novel microwave ablation needle disclosed by the utility model has the advantages that the temperature of the knife rod is reduced by using circulatory cooling water, and the temperature of a microwave antenna mast is reduced to below 37 DEG C, so that the skin is prevented from being scalded, the pain of a patient is reduced and the operation safety is improved.
Description
Technical field
This utility model relates to a kind of microwave melt needle, relates in particular to a kind of novel microwave ablation needle.
Background technology
Microwave melt needle is another address of ring microwave coagulation treatment, and it is the crystallization that microwave technology is applied to medical field.Cold circulation microwave ablation needle is not pin, and it is a very thin active antenna.Specific practice is: under B ultrasonic or CT guiding, microwave needle is directly punctured to tumor locus, in-house polar molecule is high-speed motion under the effect of microwave field, friction generates heat mutually, in tumor, heat up rapidly, when temperature is raised to 60 degree left and right, cancerous cell protein denaturation is solidified, and causes irreversible necrosis.Simultaneously very little on the impact of its hetero-organization, the immunity of raising patient body, the diffusion of inhibition tumor cell.
Microwave Coagulation Therapy be a kind of to tumor tissues have efficiently, fast, homogeneous heating, thermocoagulation Therapeutic Method thorough, easy to use, safe, be widely used in for many years clinical.Along with clinical deepening continuously, the clinical requirement for microwave melt needle (antenna for radiating microwave) is also more and more higher.When using microwave melt needle to insert tumor tissues treatment, clinically wish that microwave melt needle is more and more thinner so that when puncture, the damage of the tissues such as the blood vessel on puncture path, nerve is reached minimum in; The microwave power of wishing microwave melt needle carrying is large as much as possible, makes ablation areas large as much as possible, and form is regular circular as much as possible, reaches good therapeutic effect.The domestic and international microwave ablation needle tubing external diameter for puncture for treating tumour is generally less than 2.2mm at present.The microwave transmission part of microwave melt needle is comprised of rigid coaxial cable and high-frequency joint, and rigid coaxial cable is comprised of the plastic insulating layer between metal outer conductor (shielding action), metallic inner conductor (transmission microwave action) and internal and external conductor.Rigid coaxial cable end connects high-frequency joint (high-frequency joint is connected for the treatment line of the microwave power output with microwave ablation therapeutic equipment), rigid coaxial cable front end is peelled off one section of metal outer conductor, leave plastic insulating layer and metallic inner conductor between internal and external conductor, metallic inner conductor connects the needle point of microwave melt needle, and needle point is microwave radiation end.The needle point of the microwave melt needle connecting due to rigid coaxial cable front end is not subject to the shielding of metal outer conductor, so microwave energy radiate thus, and tumor has absorbed microwave, can produce high temperature thermocoagulation effect, by tumor cell thermocoagulation deactivation.Yet the sectional area of rigid coaxial cable is directly proportional to the microwave energy that it can carry, in the situation that microwave frequency (as: 915MHz) is certain, the energy that microwave melt needle is exported to tumor tissues is more, and the coagulable scope of organization is larger.Therefore the scope that wants to strengthen heat setting tumor must increase the diameter of coaxial cable.Facts have proved when the diameter of coaxial cable reaches 5-6mm, coaxial cable transmission microwave power can reach 80-100W, under this power rating, heating 10-15 minute, microwave can reach 4-5cm to the thermocoagulation scope diameter of tumor tissues, such ablation range is that domestic and international clinicist looks forward to, but use the microwave melt needle that coaxial cable thick as chopsticks is made to carry out clinical puncture, by inevitably can be to the blood vessel in puncture path, neural or other tissue causes serious injury, the probability that histoorgan massive hemorrhage occurs can increase, thereby complexity and the danger of operation technique have been increased.Therefore home and abroad is used diameter to be less than the microwave melt needle of 2.2mm mostly at present, when its coaxial cable is forced to increase conduction output, can cause electric current excessive and generate heat, cause transmission power loss, and may burn coaxial cable, even cause coaxial cable normal surrounding tissue to be burned.Because having, quick heating, tissue penetration are strong, multiple spot melt can carry out simultaneously, ablation range is large, the advantage such as monitoring temperature, determined curative effect in real time, and is widely used in high etc. the treatment of hepatocarcinoma, pulmonary carcinoma, hysteromyoma, osteocarcinoma, renal carcinoma, cancer of pancreas, thyroid tumor, spleen.
Cold circulation microwave ablation needle treatment tumor complication and side effect incidence rate are very low.Quick heating, is not easy to control, and can damage peripheral organs, and the reaction occurring once in a while has slight causalgia sense, postoperative low grade fever etc. in art, after giving anti symptom treatment.General transference cure after 2-3 days, so this is tumor micro-wound Therapeutic Method the most safely and efficiently at present.
Utility model content
This utility model, according to above-mentioned deficiency, provides a kind of novel microwave ablation needle.
For achieving the above object, the technical solution of the utility model is: a kind of novel microwave ablation needle, by microwave radiometer, handle, radio frequency coaxial-cable and cooling system, formed, and one end of described microwave radiometer connects the front end of described handle by knife bar.
Described cooling system is comprised of liquid coolant outlet pipe, cooling liquid water inlet pipe, peristaltic pump and liquid coolant, and described liquid coolant outlet pipe one end is connected with the rear end of handle, and the liquid coolant outlet pipe other end is connected with liquid coolant.
Described peristaltic pump one end connects described liquid coolant, and the other end connects described cooling liquid water inlet pipe.
Described cooling liquid water inlet pipe one end connects described peristaltic pump, the rear end of other end connecting handle.
The rear end of one end connecting handle of described radio frequency coaxial-cable, the other end connects microwave output interface.
The beneficial effects of the utility model are: with recirculated cooling water, reduce knife bar temperature, below microwave antenna stick temperature drop to 37 ℃, prevent scalded skin, reduce patient painful, improve operation safety.
figure of description
fig. 1 is structure chart of the present utility model.
The specific embodiment
Below in conjunction with Fig. 1, this utility model is made to specific description, a novel microwave ablation needle, is comprised of microwave radiometer 1, handle 3, radio frequency coaxial-cable 4 and cooling system, and one end of described microwave radiometer 1 connects the front end of described handle 3 by knife bar 2.Described cooling system is comprised of liquid coolant outlet pipe 6, cooling liquid water inlet pipe 7, peristaltic pump 8 and liquid coolant 9, and described liquid coolant outlet pipe 6 one end are connected with the rear end of handle 3, and liquid coolant outlet pipe 6 other ends are connected with liquid coolant 9.Described peristaltic pump 8 one end connect described liquid coolant 9, and the other end connects described cooling liquid water inlet pipe 7.Described cooling liquid water inlet pipe 7 one end connect described peristaltic pump 8, the rear end of other end connecting handle 3.The rear end of one end connecting handle 3 of described radio frequency coaxial-cable 4, the other end connects microwave output interface 5.
Recirculated cooling water reduces knife bar temperature for this utility model, below microwave antenna stick temperature drop to 37 ℃, prevents scalded skin, reduces patient painful, improves operation safety.
Above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to this utility model spirit change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (5)
1. a novel microwave ablation needle, is comprised of microwave radiometer, handle, radio frequency coaxial-cable and cooling system, it is characterized in that: one end of described microwave radiometer connects the front end of described handle by knife bar.
2. a kind of novel microwave ablation needle according to claim 1, it is characterized in that: described cooling system is comprised of liquid coolant outlet pipe, cooling liquid water inlet pipe, peristaltic pump and liquid coolant, described liquid coolant outlet pipe one end is connected with the rear end of handle, and the liquid coolant outlet pipe other end is connected with liquid coolant.
3. a kind of novel microwave ablation needle according to claim 2, is characterized in that: described peristaltic pump one end connects described liquid coolant, and the other end connects described cooling liquid water inlet pipe.
4. a kind of novel microwave ablation needle according to claim 2, is characterized in that: described cooling liquid water inlet pipe one end connects described peristaltic pump, the rear end of other end connecting handle.
5. a kind of novel microwave ablation needle according to claim 1, is characterized in that: the rear end of one end connecting handle of described radio frequency coaxial-cable, the other end connects microwave output interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320763037.0U CN203564331U (en) | 2013-11-28 | 2013-11-28 | Novel microwave ablation needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320763037.0U CN203564331U (en) | 2013-11-28 | 2013-11-28 | Novel microwave ablation needle |
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| Publication Number | Publication Date |
|---|---|
| CN203564331U true CN203564331U (en) | 2014-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320763037.0U Expired - Lifetime CN203564331U (en) | 2013-11-28 | 2013-11-28 | Novel microwave ablation needle |
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| CN (1) | CN203564331U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104688336A (en) * | 2015-03-16 | 2015-06-10 | 陈勇辉 | Dedicated kidney cancer microwave ablation antenna of laparoscope |
| CN106264721A (en) * | 2016-08-29 | 2017-01-04 | 安隽医疗科技(南京)有限公司 | A kind of SAPMAC method ablation needle system |
| CN106334261A (en) * | 2016-09-22 | 2017-01-18 | 峨眉山市芮翔电子科技有限公司 | Intelligent radio frequency burn and scald scar repairing instrument |
| CN109674528A (en) * | 2019-01-10 | 2019-04-26 | 江苏邦士医疗科技有限公司 | A kind of multifunctional micro-wound Inferior turbinate hypertrophy needle |
| CN110051431A (en) * | 2019-05-27 | 2019-07-26 | 海南省妇幼保健院 | A kind of microwave ablation device of protection tumor week tissue |
-
2013
- 2013-11-28 CN CN201320763037.0U patent/CN203564331U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104688336A (en) * | 2015-03-16 | 2015-06-10 | 陈勇辉 | Dedicated kidney cancer microwave ablation antenna of laparoscope |
| CN106264721A (en) * | 2016-08-29 | 2017-01-04 | 安隽医疗科技(南京)有限公司 | A kind of SAPMAC method ablation needle system |
| CN106264721B (en) * | 2016-08-29 | 2019-01-11 | 安隽医疗科技(南京)有限公司 | A kind of SAPMAC method ablation needle system |
| CN106334261A (en) * | 2016-09-22 | 2017-01-18 | 峨眉山市芮翔电子科技有限公司 | Intelligent radio frequency burn and scald scar repairing instrument |
| CN109674528A (en) * | 2019-01-10 | 2019-04-26 | 江苏邦士医疗科技有限公司 | A kind of multifunctional micro-wound Inferior turbinate hypertrophy needle |
| CN110051431A (en) * | 2019-05-27 | 2019-07-26 | 海南省妇幼保健院 | A kind of microwave ablation device of protection tumor week tissue |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: The third and fourth floors of J5, Nanjing University of Technology Industrial Park, No. 15, Wanshou Road, Pukou Economic Development Zone, Nanjing, Jiangsu 210000 Patentee after: Nanjing Yigao Medical Technology Co.,Ltd. Address before: The third and fourth floors of J5, Nanjing University of Technology Industrial Park, No. 15, Wanshou Road, Pukou Economic Development Zone, Nanjing, Jiangsu 210000 Patentee before: NANJING ECO MICROWAVE SYSTEM Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |