CN207679528U - Microwave melt needle and microwave ablation therapeutic equipment - Google Patents
Microwave melt needle and microwave ablation therapeutic equipment Download PDFInfo
- Publication number
- CN207679528U CN207679528U CN201720571889.8U CN201720571889U CN207679528U CN 207679528 U CN207679528 U CN 207679528U CN 201720571889 U CN201720571889 U CN 201720571889U CN 207679528 U CN207679528 U CN 207679528U
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- Prior art keywords
- needle
- microwave
- hub
- coaxial cable
- socket part
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Abstract
The utility model discloses a kind of microwave melt needle and microwave ablation therapeutic equipment, microwave melt needle includes syringe needle, needle tubing, coaxial cable, cable connector and pedestal, water tank is formed in pedestal, after coaxial cable runs through needle tubing, front end is connect with syringe needle, rear end extends through water tank and connect with cable connector.Syringe needle and needle tubing all use metal material.Syringe needle includes needle tip, circle hub and bar socket part, and for circle hub between needle tip and bar socket part, circle hub includes more hub spokes, microwave ablation channel is formed between every adjacent two hub spokes, bar socket part has perforating.Coaxial cable passes through perforating, and the front end of coaxial cable has the naked section that stripping outer conductor exposes dielectric layer, naked section and circle hub corresponding so that microwave passes through microwave ablation channel.The exhalant canal of the intake tunnel and annular of annular is formed in needle tubing.Not only ablation effect is good for the utility model, and substantially increases cooling effect.
Description
Technical field
The utility model is related to microwave tumour ablation surgical instruments, and in particular, to a kind of microwave melt needle and have
The microwave ablation therapeutic equipment of the microwave melt needle.
Background technology
Along with the development of modern high and new technology, microwave heat therapeutic technology and Microwave Coagulation technology are led in medical research with clinical
It obtains more widely applying in domain, while its theoretical research and clinical treatment, is deepening continuously, stepping up.Microwave Coagulation
Technology is applied to the microwave tumour ablation of clinical medicine, is to get involved in diameter smaller microwave antenna inside tumor tissues, spoke
It penetrates microwave energy and directly acts on tumor tissues, in 10 several minutes or even several minutes, microwave heating effect area can be made (to be commonly called as heat
) temperature reach tens degree Celsius or even upper Baidu, cause tumour solidification, downright bad, reach the treatment mesh of hatching in situ tumour
's.Microwave ablation is due to mainly utilizing the comprehensive effect of microwave plasma heating and dipole heating, therefore the efficient, speed that heats up
Soon, uniformly, thoroughly, significant in efficacy, easy to operate, wound is small, and microwave ablation is in entity tumor for solidification zone tissue necrosis
In minimally-invasive treatment, it is widely applied further.
There are many types for the microwave melt needle that clinically uses at present, e.g., have after puncturing tumour it is openable it is parallel it is ring-like,
Square crossing type, have hard can Direct perforantes crack emission type etc..In recent years, it is clinically used with hard crack water-cooling type most
More, it has the characteristics that, and puncture is easy, center char zone is few, high temperature resistant is anti-glutinous and is hardly damaged.
Common hard crack water-cooling type microwave melt needle is that practicality disclosed in CN 204723177U is new just like notification number
Type patent " the special kidney microwave melt needle of laparoscope ", between insulating sleeve and metal tartar and shank and insulating sleeve
Between by gluing knot, not only syringe needle is insecure, and due to the presence of insulating sleeve (that is, chokes ring) so that cooling water without
Method is in direct contact syringe needle, and cooling effect is poor.
Common hard crack water-cooling type microwave melt needle is also practicality disclosed in CN 204708984U just like notification number
New patent " a kind of high-intensity microwave ablation needle " uses resistance of the ceramics as radiating antenna (that is, syringe needle) between shank
Anti- matching and insulating materials, however, since microwave can form reflection in the structure, it is spherical to lead to ablation areas not, is influenced
Ablation effect.
Common hard crack water-cooling type microwave melt needle is also CN 101711705A inventions disclosed just like notification number
Patent application " microwave melt needle and its microwave ablation therapeutic equipment ", needle tubing carries out water circulating cooling by the way of capillary, so
And the inflow of capillary is very little, it is bad to the cooling effect of syringe needle.
Therefore, it is necessary to a kind of microwave melt needle and the microwave ablation therapeutic equipment with the microwave melt needle are provided, with
Solve the problems, such as that ablation effect pays no attention to that think of cooling effect poor at least partly.
Utility model content
In order to solve at least partly, ablation effect is undesirable existing for existing microwave melt needle, cooling effect is poor asks
Topic, the utility model provide a kind of microwave melt needle, including syringe needle, needle tubing, coaxial cable, cable connector and pedestal, the seat
Water tank is formed in vivo, after the coaxial cable runs through the needle tubing, described in front end is connect with the syringe needle, rear end extends through
Water tank is connect with the cable connector.The syringe needle includes that needle tip, circle hub and bar socket part, the round hub are located at the needle
Between tip and the bar socket part, the round hub includes more hub spokes, and microwave is formed between every adjacent two hub spokes
Channel is melted, the bar socket part has perforating.The coaxial cable passes through the perforating, and the front end of the coaxial cable
The naked section of dielectric layer is exposed with stripping outer conductor, the naked section is corresponding with the round hub so that microwave is described in
Microwave ablation channel.The exhalant canal of the intake tunnel and annular of annular is formed in the needle tubing, the water tank includes water inlet
Case and water tank, inlet tank described in the intake tunnel unicom and the bar socket part, bar socket part described in the exhalant canal unicom
With the water tank.
Preferably, the needle tubing includes inner needle tube and outer needle tubing, and the inner needle tube has to be matched with the coaxial cable
Axially extending bore, and there is fit clearance between the inner needle tube and the coaxial cable, the fit clearance formed it is described into
Aquaporin；The outer needle tubing is set in outside the inner needle tube, and between the inner circle and the outer circle of the inner needle tube of the outer needle tubing
With annular gap, the annular gap forms the exhalant canal.
Preferably, the bar socket part is provided with the first cooperation shoulder and the second cooperation shoulder, and the outer needle tubing is close to the end of syringe needle
End coordinates shoulder cooperation and sealing welding, the inner needle tube to coordinate shoulder with described second close to the terminal part of syringe needle with described first
It matches.
Preferably, there is hub spoke portion, hub spoke portion packet on the position of the neighbouring second cooperation shoulder on the inner needle tube
More spokes are included, form the water stream channel of intake tunnel and the exhalant canal described in unicom between every adjacent two spokes.
Preferably, the one end of the inner needle tube far from the second cooperation shoulder has stage portion, is provided in the pedestal
To be separated out the inlet tank and the water tank, the stage portion is tightly connected water tank baffle with the water tank baffle.
Preferably, a part for the stage portion is located in the inlet tank.
Preferably, the one end of the outer needle tubing far from the syringe needle is matched with the stage portion.
Preferably, the coaxial cable is threaded through the part of the bar socket part and the bar socket part is tightly connected.
Preferably, the inlet tank than the water tank further from the syringe needle.
Another aspect according to the present utility model also provides a kind of microwave ablation therapeutic equipment, including above-mentioned microwave ablation
Needle.
Microwave melt needle provided by the utility model, on the one hand due to using the syringe needle with circle hub so that microwave is only
Tissue can be entered by the microwave ablation channel formed between hub spoke, to which ablation areas is approximately spherical, ablation effect is good, just
It is controlled in operative doctor；On the other hand, it due to the exhalant canal of the intake tunnel and annular that are formed with annular in needle tubing, and intakes
Channel and the direct unicom syringe needle of exhalant canal increase inflow and outflow cross-sectional area, substantially increase relatively for capillary
Cooling effect.
A series of concept of reduced forms is introduced in utility model content, this will in the detailed description section into
One step is described in detail.The utility model content part is not meant to attempt to limit the pass of technical solution claimed
Key feature and essential features do not mean that the protection domain for attempting to determine technical solution claimed more.
Below in conjunction with attached drawing, the advantages of the utility model is described in detail and feature.
Description of the drawings
The following drawings of the utility model is used to understand the utility model in this as the part of the utility model.Attached drawing
In show the embodiment and its description of the utility model, for explaining the principles of the present invention.In the accompanying drawings,
Fig. 1 is the structure chart according to the microwave melt needle of the utility model one embodiment；
Fig. 2 is the profile in the portions P in Fig. 1；
Fig. 3 is the stereogram of the syringe needle in Fig. 1；
Fig. 4 is the structure chart of the inner needle tube in Fig. 1；
Fig. 5 is the partial enlarged view in the hub spoke portion of the inner needle tube in Fig. 4.
Wherein, reference numeral is
1-syringe needle
11-needle tips
12-circle hubs
121-hub spokes
122-microwave ablation channels
13-bar socket parts
131-perforatings
132-the first cooperation shoulder
133-transition shoulders
134-the second cooperation shoulder
2-needle tubings
21-inner needle tubes
211-axially extending bores
212-terminal parts
213-hub spoke portions
2131-spokes
2132-water stream channels
214-stage portions
22-outer needle tubings
221-apopores
3-coaxial cables
31-naked sections
32-are threaded through the part of bar socket part
4-cable connectors
5-pedestals
51-inlet tanks
511-inlet openings
52-water tanks
521-apopores
6-annulus media
7-water tank baffles
8-water inlet pipes
9-outlet pipes
102-intake tunnels
104-exhalant canals
110-coaxial cable rear covers
Specific implementation mode
In the following description, a large amount of details is provided so as to thoroughly understand the utility model.However, ability
Field technique personnel will be seen that, exemplarily only show the preferred embodiment of the utility model, the utility model described below
It may not need details as one or more and be carried out.In addition, in order to avoid obscuring with the utility model, for
Some technical characteristics well known in the art are not described in detail.
One side according to the present utility model provides a kind of microwave melt needle.Fig. 1-5 shows microwave from all angles
The all parts or part that the entirety and microwave melt needle of ablation needle are included, such as syringe needle and inner needle tube etc..In order to understand
The position and role of these components or part in microwave melt needle carry out globality to microwave melt needle first and retouch
It states, thoroughly to understand the utility model.
As shown in Figure 1, microwave melt needle includes syringe needle 1, needle tubing 2, coaxial cable 3, cable connector 4 and pedestal 5.Pedestal 5
It is inside formed with water tank, after coaxial cable 3 runs through needle tubing 2, front end is connect with syringe needle 1, rear end extends through water tank and cable connector 4
Connection.Model can be used in coaxial cable 3：The coaxial RG407 metallic microwaves feeder line of SFT50-1 half steels.The tail portion of pedestal 5 is welded with
Coaxial cable rear cover 110, cable connector 4 are arranged on coaxial cable rear cover 110.
In the preferred embodiment in the utility model, syringe needle 1 and needle tubing 2 all use harmless metal material and all kinds of conjunctions
Gold.
Pedestal 5 can install the water tank of coolant liquid using cavity body structure so that pedestal 5 is formed, and coolant liquid can be water, but simultaneously
It is not limited to water, can also be other materials.It is provided with water tank baffle 7 in pedestal 5 to separate cavity, and then forms inlet tank
51 and water tank 52.Inlet opening 511 is opened up in inlet tank 51, and water inlet pipe 8 can be connected in 511 position of inlet opening.On water tank 52
Apopore 521 is opened up, outlet pipe 9 can be connected in 521 position of apopore.In a preferred embodiment, pedestal 5, water tank baffle 7
And the cooperation of 110 welded seal of coaxial cable rear cover, to form cavity, the pipeline connect on pedestal 5 and coaxial cable rear cover 110 is (micro-
Wave treatment line, inlet and outlet pipes etc.) it naturally droops, in this way, pipeline stablizes the stress intensity that microwave melt needle generates, stress direction
It is constant, easily facilitate the precise and stable operation of staff.
In conjunction with refering to Fig. 2 and Fig. 3, in the utility model embodiment, syringe needle 1 using integrated all-metal design circle hub-like
Needle head structure.
Specifically, syringe needle 1 includes needle tip 11, circle hub 12 and bar socket part 13.Circle hub 12 be located at needle tip 11 and
Between bar socket part 13, circle hub 12 includes more hub spokes 121, and microwave ablation channel is formed between every adjacent two hub spokes 121
122.Inner needle tube 21, outer needle tubing 22 of the bar socket part 13 for being referred in coaxial cable 3 and the follow-up text of connection.Bar socket part 13, which has, wears
Apertured 131, and be provided with the first cooperation shoulder 132, second in bar socket part 13 and shoulder 134 and transition shoulder 133, transition shoulder 133 is coordinated to set
It sets between the first cooperation shoulder 132 and second coordinates shoulder 134, the first cooperation shoulder 132, second coordinates shoulder 134 and transition shoulder 133 whole
Body is in step-like.Coaxial cable 3 passes through perforating 131, and there is stripping outer conductor to expose dielectric layer for the front end of coaxial cable 3
Naked section 31, naked section 31 and circle hub 12 it is corresponding so that microwave is by microwave ablation channel 122, more, coaxial cable 3 is worn
It is sealed in the part of bar socket part 13 32 and bar socket part 13, since the shape of perforating 131 enters mainly for meeting coaxial cable 3
Afterwards and welded seal, so, in the utility model embodiment, the size of perforating 131 is had no specifically limited.Outside hub spoke 121
Annulus medium 6 is covered, hub spoke 121 is bonded together with annulus medium 6 by the viscous silica gel of high intensity high-temperature resistant.
In the preferred embodiment in the utility model, needle tip 11, circle hub 12 and bar socket part 13 are structure as a whole, and material is preferred
Stainless steel.
In the preferred embodiment in the utility model, the material of annulus medium 6 is polytetrafluoroethylene PTFE.It should be noted that
Microwave ablation channel 122 can be all kinds of poroid, need to only ensure that area that is symmetrical and appearing microwave is more than the annulus of circle hub 12
The half of area.
The circle hub syringe needle that the utility model is designed based on integrated all-metal, on the one hand, syringe needle 1 may be used with needle tubing 2
How welding manner connection (specifically welds narration in detail below), increases the firmness of syringe needle, improves reliable
Property；On the other hand, it ensure that the transmission of microwave concentrates on the circle hub 12 after needle point, improve the utilization rate of energy, more, ablation
Region will focus near round hub 12, not interfere with inside needle tubing 2, and ablation areas can be approximately spherical, convenient for operation
Doctor controls.
In conjunction with the exhalant canal for the intake tunnel 102 and annular for refering to Fig. 2, Fig. 3 and Fig. 4, being formed with annular in needle tubing 2
104,102 unicom inlet tank 51 of intake tunnel and bar socket part 13,104 unicom bar socket part 13 of exhalant canal and water tank 52.In order to
Increase inflow and outflow cross-sectional area, greatly improve cooling effect, in the utility model embodiment, it is special to have been carried out to needle tubing 2
Design, below just describes to the structure of needle tubing 2 in detail.
Needle tubing 2 includes inner needle tube 21 and outer needle tubing 22, and inner needle tube 21 and outer needle tubing 22 all use metal material, exemplary
Ground, using stainless steel.
Inner needle tube 21 has is arranged in axially extending bore 211 with 3 matched axially extending bore 211 of coaxial cable, coaxial cable 3
It is interior, and there is fit clearance between inner needle tube 21 and coaxial cable 3, which forms the intake tunnel 102 of annular.It should
It can understand ground, in order to form the intake tunnel 102 of annular, the internal diameter of inner needle tube 21 needs the outer diameter more than coaxial cable 3.
Inner needle tube 21 is divided into terminal part 212, hub spoke portion 213 and stage portion 214 according to the location of its and structure.End
End 212 is matched with the second cooperation shoulder 134 of bar socket part 13, and terminal part 212 passes through the second cooperation shoulder 134 and transition shoulder
The step formed between 133 realizes positioning.Hub spoke portion 213 is arranged adjacent to the second cooperation shoulder 134, in conjunction with refering to Fig. 5, hub spoke portion
213 include more spokes 2131, and the flow of unicom intake tunnel 102 and exhalant canal 104 is formed between every adjacent two spokes 2131
Channel 2132.Stage portion 214 is tightly connected with water tank baffle 7, to ensure the isolation of inlet tank 51 and water tank 52, stage portion
214 part is located in inlet tank 51.
It should be noted that the water stream channel 2132 in the hub spoke portion 213 of inner needle tube 21 can be all kinds of poroid, only need to protect
Demonstrate,prove the half that symmetrical and water outlet area is more than the annulus area in hub spoke portion 213.
Outer needle tubing 22 is set in outside inner needle tube 21, the setting of the transition shoulder 133 based on bar socket part 13, the inner circle of outer needle tubing 22
There is annular gap, the annular gap to form the exhalant canal 104 of annular between the outer circle of inner needle tube 21.Outer needle tubing 22 is close
The terminal part of syringe needle is connected with annulus medium 6, and, the first cooperation shoulder 132 cooperation with bar socket part 13 and sealing welding, outer needle tubing
22 one end far from syringe needle is matched with the stage portion 214 of inner needle tube 21, and encapsulation process is not necessarily at cooperation position.Outer needle tubing 22
Apopore 221 is provided on the position of water tank 52, the number of apopore 221 is not limited to one, can be two, three
It is a, even more than.
It is arranged based on above structure, recirculated water enters inlet tank 51 via water inlet pipe 8, and the intake tunnel 102 through annular arrives
Up to bar socket part 13, to the coaxial cable 3 in the intake tunnel 102 of cooling annular, recirculated water is flowed by water stream channel 2132 again
In exhalant canal 104, it is back to water tank 52 via exhalant canal 104, outlet pipe 9 is finally flowed by water tank 52, is completed whole
A cyclic process.
In order to increase cooling path, inlet tank 51, further from syringe needle 1, compares inlet tank 51 than water tank 52 than water tank 52
Closer to for the structure of syringe needle 1, the utility model has more preferably cooling effect.
The microwave melt needle of the utility model uses the intake tunnel and exhalant canal of loop configuration, compared to capillary type
For Inlet and outlet water circulating cooling, inflow and outflow cross-sectional area is considerably increased, so as to greatly improve cooling effect.
In the preferred embodiment in the utility model, needle point 1 and outer needle tubing 22 are coated with polytetrafluoroethylene PTFE, micro- can guarantee
Wave ablation needle enters human body and carries out reducing friction resistance when Minimally Invasive Surgery.
Another aspect according to the present utility model also provides a kind of microwave ablation therapeutic equipment.The microwave ablation therapeutic equipment packet
Include microwave melt needle mentioned above.
The utility model is illustrated by above-described embodiment, but it is to be understood that, above-described embodiment is
Purpose for illustrating and illustrating, and be not intended to limit the invention within the scope of described embodiment.In addition ability
Field technique personnel are it is understood that the utility model is not limited to above-described embodiment, and introduction according to the present utility model is also
More kinds of variants and modifications can be made, these variants and modifications all fall within the utility model range claimed with
It is interior.The scope of protection of the utility model is defined by the appended claims and its equivalent scope.
Claims (10)
1. a kind of microwave melt needle, including syringe needle, needle tubing, coaxial cable, cable connector and pedestal, water is formed in the pedestal
Case, after the coaxial cable runs through the needle tubing, front end is connect with the syringe needle, rear end extends through the water tank and the electricity
Cable joint connects, it is characterised in that：
The syringe needle includes needle tip, circle hub and bar socket part, the round hub be located at the needle tip and the bar socket part it
Between, the round hub includes more hub spokes, and microwave ablation channel, the bar socket part are formed between every adjacent two hub spokes
With perforating；
The coaxial cable passes through the perforating, and there is stripping outer conductor to expose dielectric layer for the front end of the coaxial cable
Naked section, the naked section is corresponding with the round hub so that microwave passes through the microwave ablation channel；
The exhalant canal of the intake tunnel and annular of annular is formed in the needle tubing, the water tank includes inlet tank and water outlet
Case, inlet tank described in the intake tunnel unicom and the bar socket part, bar socket part described in the exhalant canal unicom with it is described go out
Water tank.
2. microwave melt needle according to claim 1, which is characterized in that the needle tubing includes inner needle tube and outer needle tubing, institute
State inner needle tube have with the matched axially extending bore of the coaxial cable, and have between the inner needle tube and the coaxial cable
Fit clearance, the fit clearance form the intake tunnel；The outer needle tubing is set in outside the inner needle tube, and the outer needle
There is annular gap, the annular gap forms the exhalant canal between the inner circle of pipe and the outer circle of the inner needle tube.
3. microwave melt needle according to claim 2, which is characterized in that the bar socket part is provided with the first cooperation shoulder and
Two cooperation shoulders, the outer needle tubing coordinate shoulder cooperation and sealing welding, the inner needle tube close to the terminal part of syringe needle with described first
Terminal part close to syringe needle is matched with the second cooperation shoulder.
4. microwave melt needle according to claim 3, which is characterized in that neighbouring described second coordinates shoulder on the inner needle tube
Position on there is hub spoke portion, hub spoke portion includes more spokes, is intake described in unicom per being formed between adjacent two spokes
The water stream channel in channel and the exhalant canal.
5. microwave melt needle according to claim 4, which is characterized in that the inner needle tube is far from the second cooperation shoulder
One end has stage portion, is provided with water tank baffle in the pedestal to be separated out the inlet tank and the water tank, described
Rank portion is tightly connected with the water tank baffle.
6. microwave melt needle according to claim 5, which is characterized in that a part for the stage portion is located at the water inlet
In case.
7. microwave melt needle according to claim 5, which is characterized in that the one end of the outer needle tubing far from the syringe needle with
The stage portion matches.
8. microwave melt needle according to claim 2, which is characterized in that the coaxial cable is threaded through the bar socket part
Part is tightly connected with the bar socket part.
9. according to the microwave melt needle described in any one of claim 1-8, which is characterized in that go out described in the inlet tank ratio
Water tank is further from the syringe needle.
10. the microwave melt needle described in any one of a kind of microwave ablation therapeutic equipment, including claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720571889.8U CN207679528U (en) | 2017-05-22 | 2017-05-22 | Microwave melt needle and microwave ablation therapeutic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720571889.8U CN207679528U (en) | 2017-05-22 | 2017-05-22 | Microwave melt needle and microwave ablation therapeutic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207679528U true CN207679528U (en) | 2018-08-03 |
Family
ID=62987605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720571889.8U Withdrawn - After Issue CN207679528U (en) | 2017-05-22 | 2017-05-22 | Microwave melt needle and microwave ablation therapeutic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207679528U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109330680A (en) * | 2018-12-04 | 2019-02-15 | 安徽大中润科技有限公司 | Magnetic compatible dipole microwave ablation needle |
| CN109330654A (en) * | 2018-08-31 | 2019-02-15 | 华中科技大学 | A kind of hemostatic needle, preparation method and application |
| WO2023087662A1 (en) * | 2021-11-18 | 2023-05-25 | 南京亿高微波系统工程有限公司 | Microwave rounding needle with efficient cooling circulation |
-
2017
- 2017-05-22 CN CN201720571889.8U patent/CN207679528U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109330654A (en) * | 2018-08-31 | 2019-02-15 | 华中科技大学 | A kind of hemostatic needle, preparation method and application |
| CN109330654B (en) * | 2018-08-31 | 2021-02-05 | 华中科技大学 | Hemostatic needle, preparation method and application thereof |
| CN109330680A (en) * | 2018-12-04 | 2019-02-15 | 安徽大中润科技有限公司 | Magnetic compatible dipole microwave ablation needle |
| WO2023087662A1 (en) * | 2021-11-18 | 2023-05-25 | 南京亿高微波系统工程有限公司 | Microwave rounding needle with efficient cooling circulation |
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| AV01 | Patent right actively abandoned |
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