CN211049584U - Radio frequency ablation needle - Google Patents
Radio frequency ablation needle Download PDFInfo
- Publication number
- CN211049584U CN211049584U CN201921481142.9U CN201921481142U CN211049584U CN 211049584 U CN211049584 U CN 211049584U CN 201921481142 U CN201921481142 U CN 201921481142U CN 211049584 U CN211049584 U CN 211049584U
- Authority
- CN
- China
- Prior art keywords
- needle
- radio frequency
- sliding block
- ablation
- water injection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a radio frequency melts needle, includes the radio frequency needle body, and radio frequency needle body one end has the needle point, and one end fixed connection connects and the fixed block in addition, is equipped with thermal-insulated needle cover outside the radio frequency needle body, is equipped with the water injection hole in the radio frequency needle body, and the water injection hole is close to needle point one end intercommunication wash port, and one end switch-on water injection pipe in addition has sliding block and organ pipe at needle cover overcoat, and organ pipe both ends are connected with sliding block and fixed block respectively install the jackscrew on the sliding block. The utility model is used for solve current radio frequency ablation needle at the during operation, the difference of tumour position depth, the radio frequency ablation needle of needs differs in length, and the needle is difficult for fixing when the external radio frequency ablation needle is too long, and easy horizontal direction swing and vertical direction remove, the aversion of radio frequency ablation needle appears, influences the problem of radio frequency effect.
Description
Technical Field
The utility model relates to a radio frequency ablation needle.
Background
The radiofrequency ablation technology is characterized in that a radiofrequency ablation needle is punctured to a tumor focus part percutaneously under the guidance of images such as ultrasound, CT, MRI and the like, so that polar molecules in tissues move at a high speed under the action of radiofrequency current, heat is generated by mutual friction, the temperature in a tumor is rapidly increased by more than 60 degrees, and the irreversible coagulation necrosis of tumor cell proteins is caused, so that the purpose of tumor treatment is achieved.
The radio frequency ablation needle has the advantages of fast temperature rise, strong tissue penetrability, large ablation range, multi-point ablation, capability of monitoring temperature in real time, definite curative effect and the like, and is widely applied to treatment of liver cancer, lung cancer, uterine fibroids, osteocarcinoma, kidney cancer, pancreatic cancer, thyroid tumor, breast tumor, splenic hyperactivity and the like.
The existing radio frequency ablation needle still has some problems in work, such as different depths of tumor parts and different lengths of required radio frequency ablation needles, the radio frequency ablation needle exposed outside the body is too long, the needle body is not easy to fix, and is easy to swing in the horizontal direction and move in the vertical direction, the displacement of the radio frequency ablation needle occurs, and the radio frequency effect is influenced; in addition, when the radio frequency ablation needle exposed outside the body is too long, the radio frequency ablation needle cannot pass through the aperture of the CT/MRI machine, and the CT/MRI positioning scanning cannot be realized, so that the smooth proceeding of the radio frequency ablation treatment is influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a radio frequency ablation needle for solve current radio frequency ablation needle at the during operation, the difference of tumour position depth, the radio frequency ablation needle of needs differs in length, the needle body is difficult for fixing when the external radio frequency ablation needle of exposure is too long, easy horizontal direction swing and vertical direction remove, the aversion of radio frequency ablation needle appears, influences the problem of radio frequency effect.
In order to solve the above problem, the to-be-solved technical scheme of the utility model is:
the utility model provides a radio frequency melts needle, includes the radio frequency needle body, and radio frequency needle body one end has the needle point, and one end fixed connection connects and the fixed block in addition, is equipped with thermal-insulated needle cover outside the radio frequency needle body, is equipped with the water injection hole in the radio frequency needle body, and the water injection hole is close to needle point one end intercommunication wash port, and one end switch-on water injection pipe in addition has sliding block and organ pipe at needle cover overcoat, and organ pipe both ends are connected with sliding block and fixed block respectively install the jackscrew on the sliding block.
One end of the sliding block is provided with a circle of flanges extending outwards.
The heat insulation needle sleeve is provided with scale marks.
The heat insulation needle sleeve and the conductive needle tip are made of titanium alloy, and the needle tip is in a quadrangular pyramid shape.
The wall thickness of the heat insulation needle sleeve is 0.2mm-0.3 mm.
One side of the sliding block is provided with an electrode connecting port.
The utility model has the advantages that:
1. the utility model discloses simple structure, design benefit, operation are swift, convenient to use. When the radiofrequency ablation needle is used for radiofrequency ablation of a patient, the length of the radiofrequency ablation needle can be adjusted according to the depth difference of a tumor part, so that the sliding block is close to the body surface, the horizontal direction swinging and the vertical direction moving of the radiofrequency ablation needle are reduced, and the radiofrequency ablation needle is easy to fix.
2. The split type structure of fixed block is convenient for adjust the radio frequency ablation needle depth of puncture, is convenient for pass through CT/MRI machine aperture, realizes the location scanning, has guaranteed going on smoothly of radio frequency ablation treatment, has improved patient's comfort level, has reduced operator's the work degree of difficulty.
Drawings
The invention will be further explained with reference to the drawings:
figure 1 is a schematic perspective view of the present invention,
fig. 2 is a schematic sectional view of the present invention.
In the figure: the radio frequency needle comprises a radio frequency needle body 1, a needle point 11, a fixed block 2, an organ tube 3, a sliding block 4, a flange 41, a jackscrew 42, a heat-insulating needle sleeve 5, scale marks 51, a connector 6, a water injection hole 7, a water discharge hole 71, an electrode connecting port 8, a strip-shaped hole 81 on the heat-insulating needle sleeve, an electrode lead 82 and a heparin cap 9.
Detailed Description
As shown in fig. 1 and 2, a radio frequency ablation needle comprises a radio frequency needle body 1, wherein one end of the radio frequency needle body 1 is provided with a needle point 11, the other end of the radio frequency needle body is fixedly connected with a joint 6 and a fixed block 2, a heat insulation needle sleeve 5 is arranged outside the radio frequency needle body 1, a water injection hole 7 is arranged in the radio frequency needle body 1, one end, close to the needle point 11, of the water injection hole 7 is communicated with a water discharge hole 71, the other end of the water injection hole is communicated with a water injection pipe, a sliding block 4 and an organ pipe 3 are sleeved outside the needle sleeve 5, two ends of the organ pipe 3 are respectively. The sliding block 4 and the fixed block 2 are made of medical plastics, the water injection hole 7 is used for water injection operation in the operation, and when the water injection hole 7 is used, water or medicines can be injected into the water injection hole 7 of the radio frequency ablation needle and are discharged through water discharge inside the needle core, so that tissue carbonization is effectively prevented, and burning of normal tissues is avoided.
When the radiofrequency ablation needle is used, after the tumor position is determined, the position of the sliding block 4 is adjusted, the sliding block 4 is fixed through the jackscrew 42, the ablation needle is then inserted into the tumor position of a patient, the sliding block 4 is abutted against the skin of the patient, the insertion depth of the ablation needle is limited through the sliding block 4, the horizontal direction swing and the vertical direction movement of the radiofrequency ablation needle are reduced, and the radiofrequency ablation needle is easy to fix; wherein the organ tube 3 functions as: the part of the ablation needle exposed outside the patient body is protected, and the radio frequency needle is prevented from being polluted by external bacteria.
A ring of outwardly extending flanges 41 is provided at one end of the slider 4. The flange 41 enlarges the contact area of the sliding block 4 and the body surface of the patient, and improves the limiting effect on the radiofrequency ablation needle.
The heat insulating needle sheath 5 is provided with scale marks 51. The graduation lines 51 facilitate observation of the penetration depth of the RF ablation needle.
The heat insulation needle sleeve 5 and the conductive needle tip 11 are made of titanium alloy, and the needle tip 11 is in a quadrangular pyramid shape. The titanium alloy has good biomedical compatibility, high hardness and no magnetism, so that the radio frequency ablation needle can be used in a magnetic resonance environment. The needle point 11 is a solid quadrangular pyramid, so that the electric conductivity of the needle is enhanced, and the needle is convenient to puncture in an operation.
The wall thickness of the heat insulation needle sleeve 5 is 0.2mm-0.3 mm. The heat insulation needle sleeve 5 is in seamless sleeve joint with the radio frequency needle body 1, the wall thickness of the heat insulation needle is 0.2mm-0.3mm, the outer diameter of the whole radio frequency ablation needle can be reduced, the wound to human tissue is reduced, the frictional resistance of needle insertion is reduced, and the operation is convenient.
Be equipped with electrode connection mouth 8 on one side of sliding block 4, electrode connection mouth 8 is used for connecting the power supply cable, is equipped with bar hole 81 on insulating needle cover, and electrode wire 82 passes bar hole 81 and is connected with the radio frequency needle coil, when using, just can let the power supply cable drop on patient's health, makes the radio frequency melt needle focus reduce, weakens the degree of rocking of radio frequency melt needle.
Claims (6)
1. The utility model provides a radio frequency ablation needle, includes radio frequency needle body (1), and radio frequency needle body (1) one end has needle point (11), and one end fixed connection connects (6) and fixed block (2) in addition are equipped with outside radio frequency needle body (1) and insulate against heat needle cover (5), are equipped with water injection hole (7) in radio frequency needle body (1), and water injection hole (7) are close to needle point (11) one end intercommunication wash port (71), and one end switch-on water injection pipe, its characterized in that in addition: sliding block (4) and organ pipe (3) have been overcoat in needle cover (5), and organ pipe (3) both ends are connected with sliding block (4) and fixed block (2) respectively install jackscrew (42) on sliding block (4).
2. The rf ablation needle of claim 1, wherein: one end of the sliding block (4) is provided with a circle of outward extending flange (41).
3. The rf ablation needle of claim 1, wherein: the heat insulation needle sleeve (5) is provided with scale marks (51).
4. The rf ablation needle of claim 1, wherein: the heat insulation needle sleeve (5) and the conductive needle tip (11) are made of titanium alloy, and the needle tip (11) is in a quadrangular pyramid shape.
5. The rf ablation needle of claim 1, wherein: the wall thickness of the heat insulation needle sleeve (5) is 0.2mm-0.3 mm.
6. The rf ablation needle of claim 1, wherein: an electrode connecting port (8) is arranged on one side of the sliding block (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921481142.9U CN211049584U (en) | 2019-09-06 | 2019-09-06 | Radio frequency ablation needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921481142.9U CN211049584U (en) | 2019-09-06 | 2019-09-06 | Radio frequency ablation needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211049584U true CN211049584U (en) | 2020-07-21 |
Family
ID=71584400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921481142.9U Expired - Fee Related CN211049584U (en) | 2019-09-06 | 2019-09-06 | Radio frequency ablation needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211049584U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113729920A (en) * | 2021-09-28 | 2021-12-03 | 深圳迈微医疗科技有限公司 | Bimodal tissue ablation needle |
-
2019
- 2019-09-06 CN CN201921481142.9U patent/CN211049584U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113729920A (en) * | 2021-09-28 | 2021-12-03 | 深圳迈微医疗科技有限公司 | Bimodal tissue ablation needle |
| WO2023051165A1 (en) * | 2021-09-28 | 2023-04-06 | 深圳迈微医疗科技有限公司 | Dual-mode tissue ablation needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200721 Termination date: 20210906 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |