CN106725842B - Microwave ablation needle - Google Patents
Microwave ablation needle Download PDFInfo
- Publication number
- CN106725842B CN106725842B CN201611091905.XA CN201611091905A CN106725842B CN 106725842 B CN106725842 B CN 106725842B CN 201611091905 A CN201611091905 A CN 201611091905A CN 106725842 B CN106725842 B CN 106725842B
- Authority
- CN
- China
- Prior art keywords
- needle
- microwave
- needle tip
- end part
- wall
- 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.)
- Active
Links
- 238000002679 ablation Methods 0.000 title claims abstract description 39
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 239000000919 ceramic Substances 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- 238000001816 cooling Methods 0.000 description 6
- 206010028980 Neoplasm Diseases 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
- A61B2018/1869—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves with an instrument interstitially inserted into the body, e.g. needles
Abstract
A microwave ablation needle, which comprises a needle body, comprises a needle point body, a needle rod, a handle and a microwave coaxial connector; the inside of the needle tip body forms a hollow part, the thickness of the needle tip wall of the tail end part of the needle tip body is thinned, forming a recess with the tip wall of the tip body front end part due to different thickness; and a through hole penetrating through the needle tip wall of the whole needle tip body tail end part is formed in the needle tip wall of the needle tip body tail end part. The invention solves the problems that the puncture strength of the needle tip body is increased, can effectively avoid the falling of the needle tip body of the microwave ablation needle when the needle tip body is pulled out from the patient.
Description
Technical Field
The present invention relates to a medical device and, i.e. a microwave ablation needle.
Background
The tumor thermal ablation technology is produced on the basis of modern imaging, and has the advantages of simple and convenient operation process, small pain and low survival rate after operation, which is comparable to that of surgical excision, so the tumor thermal ablation technology is rapidly developed worldwide. The existing microwave ablation needle mainly comprises a needle tip body, a needle rod, a handle, a microwave coaxial connector, a water inlet pipe, a water outlet pipe and the like. The problem needs to be solved because the needle tip body is easy to fall off and remain in the patient when the microwave ablation needle is pulled out of the patient in the operation due to the limited adhesive strength.
Disclosure of Invention
The invention aims to solve the technical problem that the needle tip body of the microwave ablation needle is easy to fall off when being pulled out from the body of a patient.
In order to solve the technical problems, the invention adopts the following technical scheme: a microwave ablation needle comprises a needle tip body, a needle rod, a handle and a microwave coaxial connector; the inside of the needle tip body forms a hollow part, the thickness of the needle tip wall of the tail end part of the needle tip body is thinned, forming a recess with the tip wall of the tip body front end part due to different thickness; the method is characterized in that: a through hole penetrating through the needle tip wall of the whole needle tip body tail end part is formed in the needle tip wall of the needle tip body tail end part; the needle bar is inserted along the tail end part of the needle point body, a microwave coaxial cable penetrates through the needle bar, and one end of the microwave coaxial cable is inserted into the hollow part of the needle point body; through the through hole, the H-shaped bonding structure is formed between the tail end part of the needle tip body and the needle rod as well as between the needle rod and the microwave coaxial cable through filling glue. The microwave ablation needle is characterized in that: the front end of the needle bar is propped against the concave part. The microwave ablation needle is characterized in that: the other end of the microwave coaxial cable is connected with the microwave coaxial connector. The microwave ablation needle is characterized in that: and in the through hole, the space between the outer wall of the microwave coaxial cable and the inner side of the needle tip wall of the needle tip body tail end part is completely filled with strong glue. The microwave ablation needle is characterized in that: the material of the needle tip body is ceramic body. The microwave ablation needle is characterized in that: the needle point body is formed by a T-shaped needle the ceramic body is composed of a ceramic body and a ceramic body. The microwave ablation needle is characterized in that: the T-shaped needle body is made of high-strength metal and is connected with an inner conductor of the microwave coaxial cable inserted into the hollow part of the needle body. The microwave ablation needle is characterized in that: the needle bar is made of stainless steel. The microwave ablation needle is characterized in that: the number of the through holes is one or more.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is an overall schematic of a microwave ablation needle;
FIG. 2 is a block diagram of the tip body of the microwave ablation needle in the first embodiment;
FIG. 3 is a schematic view of the structure of the tip body portion of the microwave ablation needle after assembly bonding;
fig. 4 is a block diagram of a tip body of a microwave ablation needle in a second embodiment.
Fig. 5 is a schematic view of the cooling water circulation of the microwave ablation needle of the invention.
Detailed Description
As shown in fig. 1, the microwave ablation needle includes: the needle comprises a needle tip body 1, a needle rod 2, a microwave coaxial connector 6, a handle 7, a water inlet pipe 8 and a water outlet pipe 9, wherein a microwave coaxial cable 10 penetrates through the needle rod 2, one end of the microwave coaxial cable 10 is connected with the microwave coaxial connector 6, and the water inlet pipe 8 and the water outlet pipe 9 are fixed on the handle 7. In the first embodiment, as shown in fig. 2 and 3, the material of the needle tip body 1 is a ceramic body, a hollow portion is formed in the needle tip body 1, the needle tip wall of the needle tip body tail end portion 3 is thinned, a recess 4 is formed between the needle tip wall of the needle tip body tail end portion 3 and the needle tip wall of the needle tip body front end portion 1 due to the difference of thickness, the needle rod 2 is inserted along the needle tip body tail end portion 3, the front end of the needle rod 2 abuts against the recess 4, and a gap between the inner wall of the needle rod 2 and the outer side of the needle tip wall of the needle tip body tail end portion 3 is filled with a strong adhesive 301 for adhesion. The other end of the microwave coaxial cable 10 is inserted into the hollow part of the needle point body 1, and the gap between the outer wall of the microwave coaxial cable 10 and the inner side of the needle point wall of the needle point body tail end part 3 is also filled with strong glue 301 for bonding. One or more through holes 5 penetrating through the needle tip wall of the whole needle tip body tail end part 3 are formed in the needle tip wall of the needle tip body tail end part 3, and the one or more through holes 5 are also completely filled with the strong adhesive 301 when the needle tip body tail end part 3 is adhered to the needle rod 2 and the microwave coaxial cable 10. The needle bar 2 may be made of stainless steel.
In the second embodiment, the other components and assembly bonding manners of the microwave ablation needle except the needle tip body 1 are the same as those of the first embodiment, and will not be described again. The second embodiment differs from the first embodiment only in that the structure of the needle tip body 1 is composed of two parts, a T-shaped needle body 11 and a ceramic body 12, as shown in fig. 4. The T-shaped needle 11 is made of high-strength metal, and the T-shaped needle 11 is connected with an inner conductor of the microwave coaxial cable 10 inserted into the hollow part of the needle tip 1.
In actual operation, since one or more through holes 5 penetrating through the needle tip wall of the whole needle tip body tail end part 3 exist on the needle tip wall of the needle tip body tail end part 3, the strong adhesive 301 between the inner wall of the needle rod 2 and the outer side of the needle tip wall of the needle tip body tail end part 3, the strong adhesive 301 filled in the through holes 5 and the strong adhesive 301 between the outer wall of the microwave coaxial cable 10 and the inner side of the needle tip wall of the needle tip body tail end part 3 form an I-shaped strong adhesive structure, the adhesive strength between the needle tip body 1 and the needle rod 2 and the microwave coaxial cable 10 inserted into the hollow part of the needle tip body 1 is remarkably improved, and the risk that the needle tip body 1 falls off and remains in a patient when the microwave ablation needle is pulled out from the patient is greatly reduced.
As shown in fig. 5, the microwave ablation needle of the present invention has a cooling tube 13 penetrating a microwave coaxial cable 10 in the needle shaft 2 except the needle tip body 1, and the cooling tube 13 is sleeved on the microwave coaxial cable 10 and fixed between the needle shaft 2 and the microwave coaxial cable 10. The water for cooling the microwave ablation needle flows in from the water inlet pipe 8 (not shown in fig. 5 and shown in fig. 1) and the gap between the inner wall of the cooling pipe 13 and the outer wall of the microwave coaxial cable 10, and flows out from the gap between the outer wall of the cooling pipe 13 and the inner wall of the needle shaft 2 and the water outlet pipe 9 (not shown in fig. 5 and shown in fig. 1), thereby realizing the cooling water circulation of the microwave ablation needle. The cooling pipe 13, material of may be stainless steel.
Claims (9)
1. A microwave ablation needle comprises a needle tip body, a needle rod, a handle and a microwave coaxial connector; the needle point body is internally provided with a hollow part, the thickness of the needle point wall at the tail end part of the needle point body is thinned, and the needle point wall at the front end part of the needle point body is recessed due to the thickness difference; the method is characterized in that: a through hole penetrating through the needle tip wall of the whole needle tip body tail end part is formed in the needle tip wall of the needle tip body tail end part; the needle bar is inserted along the tail end part of the needle point body, a microwave coaxial cable penetrates through the needle bar, and one end of the microwave coaxial cable is inserted into the hollow part of the needle point body; through the through hole, the H-shaped bonding structure is formed between the tail end part of the needle tip body and the needle rod as well as between the needle rod and the microwave coaxial cable through filling glue.
2. The microwave ablation needle according to claim 1, wherein: the front end of the needle bar is propped against the concave part.
3. The microwave ablation needle according to claim 2, wherein: the other end of the microwave coaxial cable is connected with the microwave coaxial connector.
4. A microwave ablation needle according to claim 3, wherein: and in the through hole, the space between the outer wall of the microwave coaxial cable and the inner side of the needle tip wall of the needle tip body tail end part is completely filled with strong glue.
5. The microwave ablation needle according to claim 1, wherein: the material of the needle tip body is ceramic body.
6. The microwave ablation needle according to claim 1, wherein: the needle tip body consists of a T-shaped needle body and a ceramic body.
7. The microwave ablation needle according to claim 6, wherein: the T-shaped needle body is made of high-strength metal and is connected with an inner conductor of the microwave coaxial cable inserted into the hollow part of the needle body.
8. The microwave ablation needle according to claim 1, wherein: the needle bar is made of stainless steel.
9. The microwave ablation needle according to claim 1, wherein: the number of the through holes is one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611091905.XA CN106725842B (en) | 2016-12-01 | 2016-12-01 | Microwave ablation needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611091905.XA CN106725842B (en) | 2016-12-01 | 2016-12-01 | Microwave ablation needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106725842A CN106725842A (en) | 2017-05-31 |
| CN106725842B true CN106725842B (en) | 2024-04-05 |
Family
ID=58915693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611091905.XA Active CN106725842B (en) | 2016-12-01 | 2016-12-01 | Microwave ablation needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106725842B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109528297A (en) * | 2018-10-29 | 2019-03-29 | 四川大学华西医院 | A kind of ablation needle carrying out recurrent nerve monitoring and monitoring system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2533317Y (en) * | 2002-04-16 | 2003-01-29 | 王怡立 | Chain riveting and pneumatic power actuated setting device |
| CN2838555Y (en) * | 2005-08-30 | 2006-11-22 | 李农 | High strength does not have bar temperature microwave ablation needle |
| CN201511678U (en) * | 2008-12-31 | 2010-06-23 | 陶章香 | Rotating fish pen |
| CN201775679U (en) * | 2010-09-07 | 2011-03-30 | 南京庆海微波电子研究所 | Water-cooled microwave ablation needle for bone tumor therapy |
| CN202554106U (en) * | 2012-05-29 | 2012-11-28 | 孙建新 | High-strength water-cooled microwave ablation needle |
| CN202554105U (en) * | 2012-05-29 | 2012-11-28 | 孙建新 | Small diameter water-cooled microwave ablation needle |
| CN204744403U (en) * | 2015-03-16 | 2015-11-11 | 南京维京九洲医疗器械研发中心 | Big liver cancer microwave ablation needle |
| CN105769338A (en) * | 2016-04-11 | 2016-07-20 | 上海大学 | Microwave ablation probe for interventional therapy of liver cancer |
| CN105966160A (en) * | 2016-06-28 | 2016-09-28 | 哈尔滨市工艺美术有限责任公司 | Double-row straw tearing knife for manufacturing wheat straw craft picture and manufacturing method of double-row straw tearing knife |
| CN206729978U (en) * | 2016-12-01 | 2017-12-12 | 北京恒福思特科技发展有限责任公司 | A kind of microwave melt needle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7769469B2 (en) * | 2006-06-26 | 2010-08-03 | Meridian Medical Systems, Llc | Integrated heating/sensing catheter apparatus for minimally invasive applications |
-
2016
- 2016-12-01 CN CN201611091905.XA patent/CN106725842B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2533317Y (en) * | 2002-04-16 | 2003-01-29 | 王怡立 | Chain riveting and pneumatic power actuated setting device |
| CN2838555Y (en) * | 2005-08-30 | 2006-11-22 | 李农 | High strength does not have bar temperature microwave ablation needle |
| CN201511678U (en) * | 2008-12-31 | 2010-06-23 | 陶章香 | Rotating fish pen |
| CN201775679U (en) * | 2010-09-07 | 2011-03-30 | 南京庆海微波电子研究所 | Water-cooled microwave ablation needle for bone tumor therapy |
| CN202554106U (en) * | 2012-05-29 | 2012-11-28 | 孙建新 | High-strength water-cooled microwave ablation needle |
| CN202554105U (en) * | 2012-05-29 | 2012-11-28 | 孙建新 | Small diameter water-cooled microwave ablation needle |
| CN204744403U (en) * | 2015-03-16 | 2015-11-11 | 南京维京九洲医疗器械研发中心 | Big liver cancer microwave ablation needle |
| CN105769338A (en) * | 2016-04-11 | 2016-07-20 | 上海大学 | Microwave ablation probe for interventional therapy of liver cancer |
| CN105966160A (en) * | 2016-06-28 | 2016-09-28 | 哈尔滨市工艺美术有限责任公司 | Double-row straw tearing knife for manufacturing wheat straw craft picture and manufacturing method of double-row straw tearing knife |
| CN206729978U (en) * | 2016-12-01 | 2017-12-12 | 北京恒福思特科技发展有限责任公司 | A kind of microwave melt needle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106725842A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10874458B2 (en) | Manufacturing method for non-magnetic water-cooled microwave ablation needle | |
| CN203564304U (en) | Shock-wave guide tube of in-vivo electro-hydraulic lithotripsy electrode | |
| CN106725842B (en) | Microwave ablation needle | |
| CN204192688U (en) | The structure of blood vessel implant freed by a kind of machinery | |
| US20210113267A1 (en) | Non-puncturing microwave ablation antenna and application thereof | |
| CN206729978U (en) | A kind of microwave melt needle | |
| CN103142294B (en) | Ultrasound guided puncture pin | |
| CN202590067U (en) | Safety endovascular puncture detaining needle | |
| CN206197933U (en) | A kind of arteriopuncture servicing unit | |
| CN203763587U (en) | Disposable injection needle | |
| CN204536052U (en) | A kind of medical test sweat collection device | |
| CN202015255U (en) | Cardiological radio-frequency ablation probe | |
| CN203576616U (en) | Proximal femur locking and compressing plate | |
| CN209018876U (en) | One kind can the pinpoint intracavitary pricking device of axillary vein | |
| CN215228342U (en) | Radio frequency needle | |
| CN208598463U (en) | Mechanical kickoff mechanism and machinery free system | |
| CN205515948U (en) | Reposition of redundant personnel operation of ventricles of brain abdominal cavity is with integrated subcutaneous tunnel poker | |
| CN206342532U (en) | Novel ultrasonic guiding shifts thyroid needle device with anti-needle track | |
| CN211381730U (en) | Integrated radio frequency sleeve | |
| CN205672042U (en) | A kind of injection and expansion integrated apparatus | |
| CN204033450U (en) | A kind of pulmonary masses positioning needle external member | |
| CN203776884U (en) | Novel artery remaining needle | |
| CN204581444U (en) | Body puncture frame | |
| CN104367378B (en) | A kind of miniature sleeve pipe Kirschner wire fixation device fixing for metacarpal fracture | |
| CN100413552C (en) | Catheter connection device of implanted medicine box and its medicine box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |