CN206198041U - A kind of soft bar pin of microwave ablation - Google Patents
A kind of soft bar pin of microwave ablation Download PDFInfo
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- CN206198041U CN206198041U CN201620582789.0U CN201620582789U CN206198041U CN 206198041 U CN206198041 U CN 206198041U CN 201620582789 U CN201620582789 U CN 201620582789U CN 206198041 U CN206198041 U CN 206198041U
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- cooling water
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- water pipe
- syringe needle
- bar pin
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Abstract
The utility model provides a kind of soft bar pin of microwave ablation, including microwave syringe needle and cooling water pipe, the microwave syringe needle connects microwave transmission cable, the near-end of microwave transmission cable is connected to microwave receiving joint, the microwave syringe needle rear end is connected with outer tube, cooling water pipe distal end is by microwave syringe needle and outer tube, cooling water pipe extends to microwave syringe needle nearby, the proximal outer tube is provided with cooling water inlet and coolant outlet, the near-end of cooling water pipe connects cooling water inlet, cooling water pipe remote port is cooling water pipe delivery port, cooling water flows out from cooling water pipe delivery port, fill inside soft bar pin, from coolant outlet outflow.
Description
Technical field
The utility model is related to area of medical devices, particularly a kind of soft bar pin of microwave ablation.
Background technology
According to recent statistics, the whole world in 2015 will rise to 6,400,000 because of lung cancer death number, and China is 2,110,000, accounts for therein
33%, lung cancer has been leapt to as the first cancer killer, and with the deterioration of environment, lung cancer has increasingly severe trend.Lung cancer
Treatment is all for many years the important topic of China's medical worker, and traditional treatment method is difficult the lung caused to periphery lesser tubercle
Cancer is treated, and is particularly difficult to be treated by natural cavity, and main cause is that lung's periphery lesser tubercle much treats hand
Section apparatus is difficult to reach.Although it was verified that radio frequency ablation needle can arrive at periphery lesser tubercle position, because its work is that principle is
To need entity tumor conduction can just carry out RF ablation, and lung is generally made up of many stomatas or alveolar, and electric conductivity is poor
Or not exclusively, so RF ablation cannot play effect well in lung tumors treatment well.
Microwave ablation is more than the 10 years development thermal ablation techniques for being used for oncotherapy faster.Microwave is to biological tissue
Heater be formed with two aspects：One is dipole heating, is also the principal element of heating using microwave.In frequency>900MHz's is micro-
Under ripple electromagnetic field effect, the dipole charge polarity such as hydrone of intra-tumor is unbalance, changes rapidly with the alternation of microwave electric field
Direction, with the frequency upset per second more than million times and mutual frictional impact, produces substantial amounts of heat to make tissue degeneratiaon's necrosis；Separately
On the one hand it is Ion Heating, the ion in tissue is also changed direction rapidly and produce vibration simultaneously in the presence of microwave electromagnetic field
Mutually collision, makes kinetic energy be changed into heat energy.It can be seen that the heating process of microwave is to be organized in active heat production in the presence of electromagnetic field,
High temperature is rapidly reached in short time.Compared with radio frequency and laser ablation, microwave ablation has programming rate fast, coagulation vessel ability
By force, influenceed small by blood flow factor, can multiple antennas simultaneously act on, alveolar can be melted, normal freezing scope it is larger and stabilization
The features such as, as great potential and a treatment means for having applications well prospect in thermal ablation therapy and pulmonary ablation treatment.
Also RF ablation can be replaced to be played a significant role in lung cancer therapy completely.
But existing lung's microwave ablation is merely able to percutaneously melt lung's periphery lesser tubercle from external puncture, exists
Deficiency be to melt not comprehensive, it is impossible to the precision ablation under direct-view, the defect such as cannot treat to the tumour in lung internal passage.
Utility model content
Utility model purpose：Technical problem to be solved in the utility model is directed to the deficiencies in the prior art, there is provided one
Plant the soft bar pin of microwave ablation.
In order to solve the above-mentioned technical problem, the utility model provides a kind of soft bar pin of microwave ablation, including microwave syringe needle
And cooling water pipe, the microwave syringe needle connects microwave transmission cable, and the near-end of microwave transmission cable is connected to microwave receiving joint,
The microwave syringe needle rear end is connected with outer tube, and cooling water pipe distal end extends to by microwave syringe needle and outer tube, cooling water pipe
Nearby, the proximal outer tube is provided with cooling water inlet and coolant outlet to microwave syringe needle, and the near-end of cooling water pipe connects cooling water
Entrance, cooling water pipe remote port is cooling water pipe delivery port, and cooling water flows out from cooling water pipe delivery port, fills in soft bar pin
Portion, from coolant outlet outflow.
In the utility model, the outer tube is provided with positioning mark, is easy to be accurate to up to lesions position.
In the utility model, the outer tube is provided with locating piece, is easy to be accurate to up to lesions position.
In the utility model, the microwave needle distal end is inclined-plane, and puncture force more preferably, is easy to be accurate to up to lesions position.
In the utility model, the microwave needle distal end is three faceted pebbles, and puncture force more preferably, is easy to be accurate to up to focus position
Put.
In the utility model, the outer tube is soft structures, is easy to for microwave syringe needle to be smoothly transferred to lesions position.
In the utility model, the outer tube is macromolecular material outer tube.
In the utility model, the cooling water can direct cool to microwave needle wall, make ablation form more round.
In the utility model, the cooling water pipe distal end is laser engraving helical form or snake type shape, is easy to improve cooling water
The excessively curved property of pipe, enables product to reach farther, more inclined lesions position.
In the utility model, cooling water pipe distal section outer ring is provided with the ultra-thin heat-shrink tubes of PET, and the ultra-thin heat-shrink tubes of PET will be cold
But water tube distal end laser engraving gap pyrocondensation is wrapped, for preventing cooling water from going out from gap leakage.
In the utility model, the ultra-thin teflon coatings or nano coating, by cooling water pipe distal end laser engraving gap
Wrap, prevent cooling water from being leaked out from gap, for making the completely efficient cooled microwave syringe needle of cooling water.
In order to preferably accurately be treated from organization internal (or inside organ), combined with percutaneous micro-wave therapeutic, reached inside and outside
Ablation purpose, preferably controls illness, improves therapeutic effect and success rate of operation.The utility model designs a kind of new external diameter
Smaller, needle point has magnetism servo-electric motor water-cooling, through endoscopic forceps channel, lesions position is arrived at by human body natural's cavity under the guiding of scope, and
Carry out the new soft bar microwave needle of microwave ablation operation.
Beneficial effect：The microwave syringe needle cooling system of the utility model design, can be immediately directed against radiation by recirculated cooling water
Antenna, is cooled to required temperature, it is ensured that the safety of endoscopic forceps channel by heater all the time, and this is that traditional percutaneous microwave needle is cold
But system cannot accomplish.Cooling system of the present utility model because that directly can be cooled down to heater microwave syringe needle, than tradition
Microwave needle can only cool down shank, more preferably, temperature controlled accuracy is higher for effect, reduces operation risk, and clinic has well
Application prospect.
Brief description of the drawings
The utility model is done with reference to the accompanying drawings and detailed description further is illustrated, the utility model
Above-mentioned or otherwise advantage will become apparent.
Fig. 1 is needle head structure schematic diagram；
Fig. 2 is structural representation of the present utility model
Fig. 3 is the profile of Fig. 2；
Fig. 4 is soft bar pin cross-sectional view；
Fig. 5 is bevel needle schematic diagram；
Fig. 6 is cooling water pipe laser engraving schematic diagram.
Specific embodiment
The utility model is elaborated below in conjunction with accompanying drawing.
Embodiment：
Such as Fig. 1, the utility model includes microwave syringe needle 1, cooling water plug 2, outer tube 3, microwave transmission cable 4, cooling water
Pipe 5 and cooling water pipe delivery port, microwave syringe needle 1 are connected with microwave transmission cable 4, cooling water pipe 5 by microwave syringe needle 1 inside,
Large area is contacted with microwave syringe needle interior zone, and microwave transmission cable 4 and cooling water pipe 5 be arranged on inside outer tube 3.This implementation
Example middle external tube 3 uses macromolecular material outer tube.
Such as Fig. 2, including positioning mark 6, locating piece 7, handle front portion 8, the appearance of macromolecular material outer tube 3 of handle front portion 8
Face is provided with positioning mark 6 and locating piece 7, and locating piece 7 and positioning mark 6 guide micro- under the guiding of electromagnetic navigation system and scope
Ripple syringe needle is accurate to up to lesions position, is fixed by locating piece 7, under scope microwave needle can repeatedly, accurately and fast reach focus
Position, can carry out multiple ablative surgery to focus.
Such as Fig. 3, including, warter connection 9, microwave receiving joint 10 and handle afterbody 11, handle afterbody 11 are provided with microwave
Joint 10 is received, the near-end of cooling water pipe 5 is warter connection 9, by the high-purity recirculated cooling water for filtering, is connect through cooling water
First 9 are transmitted directly to microwave syringe needle 1 into cooling water pipe 5, and cooling is circulated to main pyrotoxin microwave syringe needle.Microwave signal
Source is connected by handle afterbody 11 with microwave receiving joint 10, and the high-frequency microwave signal that equipment is produced passes through microwave receiving joint
10, microwave transmission cable 4 is transferred to microwave syringe needle 1 and outwards launches high-frequency microwave by microwave syringe needle, in frequency>900MHz's is micro-
Under ripple electromagnetic field effect, the dipole charge polarity such as hydrone of intra-tumor is unbalance, changes rapidly with the alternation of microwave electric field
Direction, with the frequency upset per second more than million times and mutual frictional impact, produces substantial amounts of heat to make tissue degeneratiaon's necrosis.
Such as Fig. 4, including warter connection 9 and coolant outlet 9-1, cooling water enter in soft bar pin from warter connection 9,
Cooling water pipe 5 is flowed through, the near-end outflow in cooling water pipe 5 is filled inside cooling water pipe 5, is gone out from cooling water after the circle of circulation one
Mouth 9-1 discharges.More specifically recirculated cooling water is in the presence of peristaltic pump by warter connection 9 and is pressed into cooling water pipe 5,
Backwater is discharged through coolant outlet 9-1, circulation is formed in vitro, then enter cold by warter connection 9 in the presence of peristaltic pump
But water pipe 5.
Cooling water pipe 5 extends to microwave syringe needle 1 nearby, and the near-end of the outer tube 3 is provided with cooling water inlet 9 and coolant outlet
9-1, the near-end of cooling water pipe 5 connects cooling water inlet 9, and the remote port of cooling water pipe 5 is cooling water pipe delivery port 5a, cooling water
From cooling water pipe delivery port 5a outflows, fill inside soft bar pin, from coolant outlet 9-1 outflows.
It is the two kinds of microwave needle tip schematic diagrames applied on the soft bar pin of microwave ablation such as Fig. 5, including needle point 12, mesh
Be for the ease of be pierced into tissue in.Traditional microwave syringe needle is pyramid type, because of pyramid type cutting area and depth into a square increasing
Plus, into parabola shaped, if the cutting area of circular cone is π R ∧ 2, when conical top is reached, stress maximum is not suitable for all facing
Bed application.The needle point with good puncture function of the utility model design, comprising inclined-plane or Rhizoma Sparganii with more preferable puncture force
Face constitutes microwave syringe needle, paracentesis depth and cutting area is linearly increased, and greatly reduces puncture force, meets traditional intervention
Feel when doctor punctures, it is to avoid its hetero-organization is penetrated because overexerting, or can not be accurate to up to lesions position, there is applications well
Prospect.
Such as Fig. 6, to improve the excessively curved property of product, product is set to reach farther, more inclined lesions position, in cooling water pipe 5
Distal end carry out rapid laser carving, curl or snake type shape 5-1 are carved, while to prevent seam of the cooling water from laser engraving
Leaked in gap, the cooling effect of influence microwave syringe needle 1, PET is ultra-thin in pyrocondensation at the distal end laser engraving of cooling water pipe 5
Heat shrinkage film 12, or teflon coatings or nano coating etc. are sprayed at laser engraving, prevent cooling water from revealing and improve product simultaneously
Excessively curved performance.
Macromolecular material outer tube 3 is using high-strength electric insulation material PEEK (polyether-ether-ketone).Because outer tube 3 is not metal material
Material, will not hinder the transmitting of microwave, not have traditional microwave pin because of the resistance matching problem existed using metal outer pipe, can be with complete
It is complete effectively, safety to emission microwave, it is to avoid the energy loss problem that traditional microwave pin is present.
Microwave product under the utility model scope, because novel microwave product can through endoscopic forceps channel reach lesions position, it is necessary to
Product has good excessively curved property, torsion transporting and certain puncture rigidity etc., the macromolecule material that the utility model is used
Material outer tube 3 is made up of medical grade material PEEK (polyether-ether-ketone), and product is widely used the material under medical scope, is had
, microwave system (antenna for radiating microwave etc.) smoothly can be transferred to by excellent excessively curved property, torsion transporting and certain rigidity
Lesions position, or even focus is the place that cannot be reached in other apparatuses, is smoothed out operation.Substitution carrys out traditional surgery and opens
Knife is performed the operation, and is also beneficial to the percutaneous intervention microwave ablation focus that cannot be reached and the focus one that cannot be seen under direct-view
Supplement.
Meanwhile, microwave product is to prevent from damaging the endoscopic forceps channel being made up of macromolecular material under novel endoscope, to new micro-
The temperature of ripple pin is strictly controlled, and this point is particularly important in actually used and extension process.The microwave needle of the utility model design
Head cooling system, can be immediately directed against microwave syringe needle by recirculated cooling water, and heater is cooled into required temperature all the time, it is ensured that
The safety of endoscopic forceps channel, this is that traditional percutaneous microwave needle cooling system cannot be accomplished.
Reported further accordance with medical treatment, actually the first step of the local inactivation of cancer simply treatment, real " healing " also according to
By the raising of patient's immunologic function in itself.Body and lung cancer after furtheing investigate microwave ablation, the immune response of liver cancer treatment area
Rule, find microwave ablation to activating and strengthen the humoral immunity of patient and the immune of local cells and have obvious effect.Cancer stove
After by hatching in situ and indwelling, CD3 in peripheral blood, CD4, CD8, NK cell and macrophage increase, it is often more important that liver
T cell inside and outside cancer cancer stove, the infiltration of NK cells and macrophage substantially increases.Further to improve local immunity, keep
Good immune state, we have furtherd investigate the treatment method of local regular injections Staphylococcin Aureus after microwave ablation, by 5
The Clinical controlled trial result in year shows that the transfer and relapse rate of local injection Staphylococcin Aureus group tumour is significantly lower than and does not inject height
Ju Jin Portugals element group, both have obvious significant difference.In follow-up is up to 288 cases of microwave ablation of liver cancer of 10 years,
The incidence of newborn focus is only 35% in local recurrence and liver.Research has shown that when temperature reaches 54 DEG C (3 minutes) or 60 DEG C
(at once) protein in its cell be occur denaturation solidification cause neoplasm necrosis, in order to complete melt different size, shape and
The liver tumour of blood supply state, need to accomplish default before treatment, temperature monitoring and regulation of energy in treatment, to reach seance
The purpose of complete inactivation.Cooling system of the present utility model because that directly can be cooled down to heater microwave syringe needle, than traditional
Microwave needle can only cool down shank, and more preferably, temperature controlled accuracy is higher for effect, reduce operation risk, and clinic has well should
Use prospect.
The utility model provides a kind of soft bar pin of microwave ablation, implements the method and approach of the technical scheme very
Many, the above is only preferred embodiment of the present utility model, it is noted that for those skilled in the art
For, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improvements and modifications
Should be regarded as protection domain of the present utility model.Each part being not known in the present embodiment can use prior art to be subject to reality
It is existing.
Claims (9)
1. the soft bar pin of a kind of microwave ablation, it is characterised in that including microwave syringe needle (1) and cooling water pipe (5), the microwave syringe needle
(1) connection microwave transmission cable (4), the near-end of microwave transmission cable (4) is connected to microwave receiving joint (10), the microwave needle
Head (1) rear end is connected with outer tube (3), and cooling water pipe (5) distal end is internal by microwave syringe needle (1) and outer tube (3), cooling water pipe
(5) microwave syringe needle (1) is extended to nearby, outer tube (3) near-end is provided with cooling water inlet (9) and coolant outlet (9-1), cold
But the near-end of water pipe (5) connects cooling water inlet (9), and cooling water pipe (5) remote port is cooling water pipe delivery port (5a), cooling
Water flows out from cooling water pipe delivery port (5a), fills inside soft bar pin, from coolant outlet (9-1) outflow；
The outer tube (3) is soft structures.
2. the soft bar pin of a kind of microwave ablation according to claim 1, it is characterised in that outer tube (3) is provided with positioning mark
(6)。
3. the soft bar pin of a kind of microwave ablation according to claim 1, it is characterised in that the outer tube (3) is provided with positioning
Block (7).
4. the soft bar pin of a kind of microwave ablation according to claim 1, it is characterised in that microwave syringe needle (1) distal end is
Inclined-plane.
5. the soft bar pin of a kind of microwave ablation according to claim 1, it is characterised in that microwave syringe needle (1) distal end is
Three faceted pebbles.
6. the soft bar pin of a kind of microwave ablation according to claim 1, it is characterised in that the cooling water pipe (5) is directly cold
But the inside of microwave syringe needle (1), so that the form of ablation is more round.
7. the soft bar pin of a kind of microwave ablation according to claim 1, it is characterised in that the cooling water pipe (5) for 304 not
Rust steel wool tubule, distal section laser engraving curl or snake type shape, the excessively curved property for improving cooling water pipe (5).
8. the soft bar pin of a kind of microwave ablation according to claim 7, it is characterised in that cooling water pipe (5) distal section outer ring sets
Having the ultra-thin heat-shrink tubes of PET (12), the ultra-thin heat-shrink tubes of PET (12) carries out pyrocondensation and sealing to the weld seam after the laser engraving of distal end, uses
Spilt in cooling water is prevented.
9. a kind of soft bar pin of microwave ablation according to claim 7, it is characterised in that the cooling water pipe after laser engraving
(5) distal end, sprays Teflon microthin coating or ultrathin nanometer coating, for preventing cooling water from spilling in cooling water pipe (5) distal end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620582789.0U CN206198041U (en) | 2016-06-15 | 2016-06-15 | A kind of soft bar pin of microwave ablation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620582789.0U CN206198041U (en) | 2016-06-15 | 2016-06-15 | A kind of soft bar pin of microwave ablation |
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| Publication Number | Publication Date |
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| CN206198041U true CN206198041U (en) | 2017-05-31 |
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| CN201620582789.0U Active CN206198041U (en) | 2016-06-15 | 2016-06-15 | A kind of soft bar pin of microwave ablation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106037930A (en) * | 2016-06-15 | 2016-10-26 | 南京微创医学科技股份有限公司 | Microwave ablation soft rod needle |
| CN107802343A (en) * | 2017-11-06 | 2018-03-16 | 南京微创医学科技股份有限公司 | A kind of Split variable-diameter microwave needle |
| CN109602490A (en) * | 2018-11-27 | 2019-04-12 | 南京维京九洲医疗器械研发中心 | A kind of microwave ablation electrode under bronchoscope |
| CN110459873A (en) * | 2019-08-09 | 2019-11-15 | 武汉慧联无限科技有限公司 | A kind of antenna having heat sinking function |
-
2016
- 2016-06-15 CN CN201620582789.0U patent/CN206198041U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106037930A (en) * | 2016-06-15 | 2016-10-26 | 南京微创医学科技股份有限公司 | Microwave ablation soft rod needle |
| CN106037930B (en) * | 2016-06-15 | 2019-07-12 | 上海市胸科医院 | A kind of soft bar needle of microwave ablation |
| CN107802343A (en) * | 2017-11-06 | 2018-03-16 | 南京微创医学科技股份有限公司 | A kind of Split variable-diameter microwave needle |
| CN109602490A (en) * | 2018-11-27 | 2019-04-12 | 南京维京九洲医疗器械研发中心 | A kind of microwave ablation electrode under bronchoscope |
| CN110459873A (en) * | 2019-08-09 | 2019-11-15 | 武汉慧联无限科技有限公司 | A kind of antenna having heat sinking function |
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Address after: 210061, No. 10, hi tech three road, Pukou hi tech Industrial Development Zone, Nanjing, Jiangsu Patentee after: Nanwei Medical Technology Co., Ltd Address before: 210061, No. 10, hi tech three road, Pukou hi tech Industrial Development Zone, Nanjing, Jiangsu Patentee before: Micro-Tech (Nanjing) Co., Ltd. |