CN206138201U - Compatible microwave ablation needle of magnetic resonance - Google Patents
Compatible microwave ablation needle of magnetic resonance Download PDFInfo
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- CN206138201U CN206138201U CN201620789923.4U CN201620789923U CN206138201U CN 206138201 U CN206138201 U CN 206138201U CN 201620789923 U CN201620789923 U CN 201620789923U CN 206138201 U CN206138201 U CN 206138201U
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- needle
- needle tubing
- magnetic resonance
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- tubing
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Abstract
The utility model provides a compatible microwave ablation needle of magnetic resonance, includes: the syringe needle of integration, interior seal wire, middle insulating cover, the needle tubing, the slip screwed pipe, ring shape separation blade, outer insulating skin, the needle handle, the transparent retaining of white box, the leading water pipe, coaxial fitting, syringe needle and the interior seal wire nestification of integration are in the insulating cover in centre, the syringe needle uses medical UV glue bond fixed with middle insulating cover front end contact surface, middle insulating cover is nested in the needle tubing again, middle insulating cover front end and needle tubing contact surface use medical UV glue bond fixed, ring shape separation blade is fixed in the needle tubing afterbody, slip threaded pipe sleeve goes into in the needle tubing, ring shape separation blade is used for keeping out the slip screwed pipe, the needle tubing is nested in the insulating skin of skin again, outer insulating skin uses medical UV to glue and fixes on the needle handle front end, the needle handle front end is the transparent retaining of white box, the leading water pipe embedding is in the needle handle, in needle handle afterbody coaxial fitting made of copper and the welding of needle tubing afterbody, slip screwed pipe and the interior screw -thread fit fixed joint of coaxial fitting.
Description
Technical field
The utility model belongs to medical instruments field, and in particular to a kind of microwave melt needle of magnetic resonance compatible, it is adaptable to
Tumour ablation treating under magnetic nuclear resonance environment.
Background technology
With the progress of modern science and technology and medical science, microwave tumour ablation art achieves important breakthrough, has been widely used for facing
Bed.Microwave ablation is a kind of means of intervention radiation therapy tumour, by microwave melt needle（Transmitting antenna）Intervention human tumor
Tissue, goes out microwave energy so that the high-speed motion in the presence of microwave field of the polar molecule in tissue, phase by its syringe needle sustained radiation
Mutual friction produces fuel factor at once, and stable spherical thermal field is formed in tissue, and central temperature is more than 100 DEG C, lip temperature
More than 60 DEG C, the cell protein denaturation solidification in tissue causes irreversible necrosis, reaches the purpose of tumour ablation.Microwave
Ablation tumour is safe, little to human body wound, efficient, thermocoagulation thorough, can suppress the diffusion of tumour cell, so getting over
To be more subject to praising highly for doctors.At present commercial microwave system is 915Mhz and 2.45Ghz microwave frequencies, microwave melt needle conduct
The core component of ablation system, directly determines the key indexs such as scope, shape and the ablation efficiency of tumour ablation.
However, existing microwave melt needle also has some limitations：
1. microwave ablation belongs to the Minimally Invasive Surgery under imaging guiding, and existing microwave melt needle is due in material technology etc.
The restriction of aspect can be only applied under CT and ultrasound environments, it is impossible to under magnetic resonance environment.
2. the syringe needle emitting structural of existing microwave melt needle be by with needle tubing inside coaxial cable inner wire wire bond
Connect and fix, not enough firmly, easily come off during surgical, greatly injury is caused to patient.
3. the Water-cooling circulating complex structure of existing microwave melt needle, increases processing assembling difficulty.
Utility model content
In view of in this, the utility model provides the integration of a kind of magnetic resonance compatible, syringe needle and inner wire silk and cools down knot
The simple microwave melt needle of structure.
A kind of magnetic resonance compatible microwave melt needle, including：Syringe needle, inner guide wire, intermediate insulation set, needle tubing, the cunning of integration
Dynamic screwed pipe, annular catch, outer layer insulation skin, needle handle, white clear storage box, aqueduct, coaxial fitting.Described one
The syringe needle and inner guide wire of body is nested in intermediate insulation set, and syringe needle and intermediate insulation set front end contact surface are gluing using medical UV
Knot is fixed；Intermediate insulation set is nested in again in needle tubing, and intermediate insulation set front end and needle tubing contact surface are solid using the gluing knots of medical UV
It is fixed；Annular catch is fixed on needle tubing afterbody；Slip screwed pipe is inserted in needle tubing, and annular catch is used to keep out slip screw thread
Pipe；Needle tubing is nested in again in outer layer insulation skin, and outer layer insulation skin is fixed on needle handle front end using medical UV glue；Needle handle front end is
White clear storage box, aqueduct is embedded in needle handle；Weld in the coaxial fitting made of copper of needle handle afterbody and needle tubing afterbody,
Slip screwed pipe and coaxial fitting screw-internal thread fit, anchor tip.
In the syringe needle and inner guide wire of the integration, needle length is 4mm-12mm, a diameter of 1.8mm-2.2mm, is inside led
Filament length degree is 191mm-199mm, a diameter of 0.5mm-0.6mm.
It is 188mm-196mm that the intermediate insulation set is shorter in length than inner guide wire length, and internal diameter is a diameter of slightly larger than inner guide wire
The external diameter of 0.55mm-0.65mm, front end 2mm is mutually all 1.8mm-2.2mm with needle diameter, and rear end external diameter is slightly less than needle tubing internal diameter
For 1.61mm-1.95mm.
It is 186mm-194mm that the needle tubing is shorter in length than intermediate insulation set 2mm, and internal diameter is covered outside rear end slightly larger than intermediate insulation
Footpath is 1.66mm-1.99mm, and external diameter is mutually all 1.8mm-2.2mm with needle diameter, it is ensured that syringe needle, intermediate insulation set front end, pin
Tube outer surface three is on one face.
The annular catch internal diameter is 1.9mm-2.3mm slightly larger than needle tubing external diameter, and external diameter is 3mm-4mm, and width is
1mm-3mm。
The slip screwed pipe is M5 screw threads, and hole internal diameter is 1.9mmm-2.3mmm slightly larger than needle tubing external diameter, and width is 4mm-
6mm。
The external insulation skin length is 137mm-145mm, and thickness is 0.05mm-0.1mm, and internal diameter is slightly larger than needle tubing external diameter
1.85mm-2.25mm。
The diameter of the inner guide wire is calculated with the internal diameter of needle tubing according to the characteristic impedance formula of coaxial cable, it is ensured that special
Property impedance be 50 Ω.
With needle tubing afterbody cross section in a plane, inner guide wire is higher than intermediate insulation for the intermediate insulation set afterbody cross section
Set and needle tubing afterbody cross section, have more 2mm-3mm, needle handle afterbody inner guide wire, intermediate insulation set and needle tubing afterbody cross section with
Coaxial fitting is welded, and is fixed by slip screwed pipe.
A kind of manufacture method of magnetic resonance compatible puncture needle of the present utility model is mainly included the following steps that：
（1）, by the syringe needle spraying high temperature resistant Teflon in the syringe needle and inner guide wire of integration, inner guide wire surface and cross section
It is silver-plated；The integrated syringe needle and inner guide wire are magnetic resonance compatible titanium alloy material；
（2）, by integration syringe needle and inner guide wire be nested in intermediate insulation set in, syringe needle and intermediate insulation set before end in contact
Medical UV glue is smeared respectively in face, and is dried bonding with ultra violet lamp；The intermediate insulation set is polytetrafluoroethylmaterial material；
（3）, needle tubing inner surface and afterbody cross section is silver-plated, silver plating thicknesses slightly larger than needle tubing skin depth, by centre
Insulation sleeve is nested in needle tubing, and intermediate insulation set front end and needle tubing contact surface smear respectively medical UV glue, and use ultra violet lamp
It is dried bonding；The needle tubing is magnetic resonance compatible titanium alloy material；
（4）, annular catch is bonded at needle tubing afterbody 2mm；The annular catch is that copper material or magnetic are common
Shake compatible titanium alloy material；
（5）, slip screwed pipe is inserted in needle tubing from needle end；The slip screwed pipe is that copper material or magnetic resonance are simultaneous
Hold titanium alloy material；
（6）, coaxial fitting made of copper and needle tubing afterbody welded, slip screwed pipe and coaxial fitting internal thread
Coordinate, anchor tip；
（7）, outer layer insulation skin one end outer surface smeared one layer of medical UV glue be fixed on the white clear of needle handle front end and store
In water box, needle tubing is nested in outer layer insulation skin from needle handle tail end；The outer layer insulation skin is silastic material；
（8）, needle handle and aqueduct are installed.
A kind of microwave melt needle of magnetic resonance compatible of the utility model, beneficial effect is：
1. the microwave melt needle that the utility model is provided uses non-magnetic material, it is adaptable to the intervention under magnetic resonance imaging environment
Operation.It is mri guided accurate without ionising radiation, image resolution ratio height, treatment to human body, contribute to doctor accurately fixed
Position knub position and its edge, complete inactivation tumor tissues improve the success rate of operation, and human normal tissue is not produced
Adverse effect, mitigates patient suffering.
2. the syringe needle and inner wire silk integration of the microwave melt needle that the utility model is provided, is connected firmly, and is performing the operation
Will not fall off in journey and patient is damaged.
3. the cooling structure of the microwave melt needle that the utility model is provided is simple, and parts have carried out to a certain extent excellent
Change and reduce, reduce processing assembling difficulty, water cooling can effectively reduce temperature, prevent needle tubing overheated to people in needle tubing outer surface
Body normal structure is burnt.
Figure of description:
Fig. 1 is a kind of needle structure schematic diagram of the microwave melt needle of magnetic resonance compatible；
Fig. 2 is a kind of overall structure diagram of the microwave melt needle of magnetic resonance compatible.
It is the syringe needle 1-1 of integration, inner guide wire 1-2, intermediate insulation set 3, needle tubing 3, slip screw thread 4, annular catch 5, outer
Layer insulated hull 6, needle handle 7, storage box 8, aqueduct 9, coaxial fitting 10.
Specific embodiment：
Embodiment is given below to be specifically described the utility model, it is necessary to it is pointed out here that be following enforcement
Example is served only for being further described the utility model, it is impossible to be interpreted as the restriction to the utility model protection domain, the neck
The person skilled in the art in domain according to some nonessential modifications and adaptations that the utility model content is made to the utility model still
Belong to protection domain of the present utility model.
As shown in Figure 1 and 2：A kind of microwave melt needle of magnetic resonance compatible, including：The syringe needle 1-1 and inner guide wire 1- of integration
2nd, intermediate insulation set 2, needle tubing 3, slip screwed pipe 4, annular catch 5, external insulation skin 6, needle handle 7, white storage box 8, diversion
Pipe 9 and coaxial fitting 10.The syringe needle 1-1 and inner guide wire 1-2 of integration is nested in intermediate insulation set 2, and syringe needle 1-1 is with
Between the front end contact surface of insulation sleeve 2 be adhesively fixed using medical UV glue；Intermediate insulation set 2 is nested in again in needle tubing 3, intermediate insulation set
2 front ends and the contact surface of needle tubing 3 are adhesively fixed using medical UV glue；Annular catch 5 is fixed on the afterbody of needle tubing 3；Slip screwed pipe 4
In being inserted in needle tubing, annular catch 5 is used to keep out slip screwed pipe 4；Needle tubing 3 is nested in again in outer layer insulation skin 6, outer layer insulation
Skin 6 is fixed on the front end of needle handle 7 using medical UV glue；The front end of needle handle 7 is white clear storage box 8, and aqueduct 9 is embedded in needle handle
In 7；In the coaxial fitting 10 made of copper of the afterbody of needle handle 7 and the welding of the afterbody of needle tubing 3, slip screwed pipe 4 and coaxial fitting
10 screw-internal thread fits, anchor tip.
In the syringe needle 1-1 and inner guide wire 1-2 of the integration, syringe needle 1-1 length is 4mm-12mm, a diameter of 1.8mm-
2.2mm, inner guide wire 1-2 length is 191mm-199mm, a diameter of 0.5mm-0.6mm.
It is 188mm-196mm that the intermediate insulation covers 2 length, and internal diameter is slightly larger than a diameter of 0.55mm- of inner guide wire 1-2
The external diameter of 0.65mm, front end 2mm is mutually all 1.8mm-2.2mm with syringe needle 1-1 diameters, and rear end external diameter is slightly less than the internal diameter of needle tubing 3 and is
1.61mm-1.95mm；The syringe needle 1-1 and inner guide wire 1-2 of integration is nested in intermediate insulation set 2, syringe needle 1-1 and intermediate insulation
Cover 2 front end contact surfaces to be adhesively fixed under ultraviolet irradiation using medical UV glue.
The length of the needle tubing 3 is 186mm-194mm, and it is 1.66mm- that internal diameter covers 2 rear end external diameters slightly larger than intermediate insulation
1.99mm, external diameter is mutually all 1.8mm-2.2mm with syringe needle 1-1 diameters, it is ensured that syringe needle 1-1, intermediate insulation cover 2 front ends, outside needle tubing 3
Surface three is on one face；Intermediate insulation set 2 is nested in needle tubing 3, and intermediate insulation covers 2 front ends and the contact surface of needle tubing 3 is used
Medical UV glue is adhesively fixed under ultraviolet irradiation.
The internal diameter of annular catch 5 is 1.9mm-2.3mm slightly larger than the external diameter of needle tubing 3, and external diameter is 3mm-4mm, and width is
1mm-3mm。
The slip screwed pipe 4 is M5 screw threads, and hole internal diameter is 1.9mmm-2.3mmm slightly larger than needle tubing external diameter, and width is
4mm-6mm。
The length of external insulation skin 6 is 137mm-145mm, and thickness is 0.05mm-0.1mm, and internal diameter is slightly larger than the external diameter of needle tubing 3
For 1.85mm-2.25mm；The front end of needle handle 7 is bonded under ultraviolet irradiation by using medical UV glue, the water in storage box 8 leads to
Gap stream needle-inserting tube 3 surface crossed between external insulation skin 6 and needle tubing 3, cools down to needle tubing 3.
Described one layer of high temperature resistant Teflon of syringe needle 1-1 surface sprayings, prevents from gluing glutinous tissue during use, effectively reduces rubbing
Wipe coefficient.
The inner guide wire 1-2 surfaces and afterbody cross section are silver-plated, it is ensured that electric conductivity.
The inner surface of the needle tubing 3 and afterbody cross section are silver-plated, it is ensured that electric conductivity.
The diameter of the inner guide wire 1-2 is calculated with the internal diameter of needle tubing 3 according to the characteristic impedance formula of coaxial cable, is protected
Card characteristic impedance is 50 Ω, reduces the reflection occurred due to impedance mismatch.
The intermediate insulation covers 2 afterbody cross sections with the afterbody cross section of needle tubing 3 in a plane, during inner guide wire 1-2 is higher than
Between insulation sleeve 2 and the afterbody cross section of needle tubing 3,2mm-3mm is had more, in the afterbody inner guide wire 1-2 of needle handle 7, intermediate insulation set 2 and needle tubing
3 afterbody cross sections are welded with copper coaxial fitting 10, and are fixed by slip screwed pipe 4.
In the insertion handle 7 of the aqueduct 9, fed the water in white clear storage box 8 by wriggling rod, white clear stores
Water in water box 8 flows the surface of needle-inserting tube 3 by the gap between external insulation skin 6 and needle tubing 3, and needle tubing 3 is cooled down.
A kind of manufacture method of the microwave melt needle of magnetic resonance compatible of the present utility model is mainly included the following steps that：
（1）, by integration syringe needle 1-1 and inner guide wire 1-2 in syringe needle 1-1 spraying high temperature resistant Teflon, inner guide wire 1-2
Surface and cross section are silver-plated；The integrated syringe needle 1-1 and inner guide wire 1-2 is magnetic resonance compatible titanium alloy material；
（2）, by integration syringe needle 1-1 and inner guide wire 1-2 be nested in intermediate insulation set 2 in, syringe needle 1-1 and centre it is exhausted
Edge covers 2 front end contact surfaces and smears medical UV glue respectively, and is dried bonding with ultra violet lamp；The intermediate insulation covers 2
Polytetrafluoroethylmaterial material；
（3）, the inner surface of needle tubing 3 and afterbody cross section is silver-plated, silver plating thicknesses slightly larger than needle tubing 3 skin depth, will in
Between insulation sleeve 2 be nested in needle tubing 3, intermediate insulation covers 2 front ends and the contact surface of needle tubing 3 and smears medical UV glue respectively, and with ultraviolet
Light irradiation is dried bonding；The needle tubing 3 is magnetic resonance compatible titanium alloy material；
（4）, annular catch 5 is bonded at the afterbody 2mm of needle tubing 3；The annular catch 5 is copper material or magnetic
The compatible titanium alloy material of resonance；
（5）, slip screwed pipe 4 is inserted in needle tubing 3 from syringe needle 1-1 ends；The slip screwed pipe 4 is that copper material or magnetic are common
Shake compatible titanium alloy material；
（6）, coaxial fitting made of copper 10 and the afterbody of needle tubing 3 welded, slip screwed pipe 4 and coaxial fitting 10
Screw-internal thread fit, anchor tip；
（7）, one end outer surface of outer layer insulation skin 6 is smeared the white clear that one layer of medical UV glue is fixed on the front end of needle handle 7
In storage box 8, needle tubing 3 is nested in outer layer insulation skin 6 from the tail end of needle handle 7；The outer layer insulation skin 6 is silastic material；
（8）, needle handle 7 and aqueduct 9 are installed.
General principle of the present utility model and principal character has been shown and described above.The technical staff of the industry should
Solution, the utility model is not restricted to the described embodiments, and this practicality is new for simply illustrating described in above-described embodiment and specification
The principle of type, on the premise of without departing from the utility model spirit and scope, the utility model also has various changes and modifications,
These changes and improvements are both fallen within the range of claimed the utility model.Claimed scope of the present utility model is by appended
Claims and its equivalent thereof.
Claims (9)
1. a kind of microwave melt needle of magnetic resonance compatible, it is characterised in that：Including：Syringe needle, inner guide wire, the intermediate insulation of integration
Set, needle tubing, slip screwed pipe, annular catch, outer layer insulation skin, needle handle, white clear storage box, aqueduct, coaxial cable
Joint, the syringe needle and inner guide wire of the integration are nested in intermediate insulation set, and syringe needle and intermediate insulation set front end contact surface make
It is adhesively fixed with medical UV glue；Intermediate insulation set is nested in again in needle tubing, and intermediate insulation set front end and needle tubing contact surface use doctor
It is adhesively fixed with UV glue；Annular catch is fixed on needle tubing afterbody；Slip screwed pipe is inserted in needle tubing, and annular catch is used to support
Gear slip screwed pipe；Needle tubing is nested in again in outer layer insulation skin, and outer layer insulation skin is fixed on needle handle front end using medical UV glue；
Needle handle front end is white clear storage box, and aqueduct is embedded in needle handle；In the coaxial fitting made of copper of needle handle afterbody and pin
The welding of pipe afterbody, slip screwed pipe and coaxial fitting screw-internal thread fit, anchor tip.
2. the microwave melt needle of a kind of magnetic resonance compatible according to claim 1, it is characterised in that：The pin of the integration
In head and inner guide wire, needle length is 4mm-12mm, a diameter of 1.8mm-2.2mm, and inner guide wire length is 191mm-199mm, directly
Footpath is 0.5mm-0.6mm.
3. the microwave melt needle of a kind of magnetic resonance compatible according to claim 1, it is characterised in that：The intermediate insulation set
It is 188mm-196mm to be shorter in length than inner guide wire length, and internal diameter is slightly larger than a diameter of 0.55mm-0.65mm of inner guide wire, front end 2mm's
External diameter is mutually all 1.8mm-2.2mm with needle diameter, and rear end external diameter is slightly less than needle tubing internal diameter for 1.61mm-1.95mm.
4. the microwave melt needle of a kind of magnetic resonance compatible according to claim 1, it is characterised in that：The needle tubing length is short
It is 186mm-194mm in intermediate insulation set 2mm, internal diameter covers rear end external diameter for 1.66mm-1.99mm slightly larger than intermediate insulation, external diameter
1.8mm-2.2mm is mutually all with needle diameter, it is ensured that syringe needle, intermediate insulation set front end, needle tubing outer surface three are on one face.
5. the microwave melt needle of a kind of magnetic resonance compatible according to claim 1, it is characterised in that：The annular catch
Internal diameter is 1.9mm-2.3mm slightly larger than needle tubing external diameter, and external diameter is 3mm-4mm, and width is 1mm-3mm.
6. the microwave melt needle of a kind of magnetic resonance compatible according to claim 1, it is characterised in that：The slip screwed pipe
For M5 screw threads, hole internal diameter is 1.9mmm-2.3mmm slightly larger than needle tubing external diameter, and width is 4mm-6mm.
7. the microwave melt needle of a kind of magnetic resonance compatible according to claim 1, it is characterised in that：The external insulation skin is long
Spend for 137mm-145mm, thickness is 0.05mm-0.1mm, internal diameter is 1.85mm-2.25mm slightly larger than needle tubing external diameter.
8. the microwave melt needle of a kind of magnetic resonance compatible according to claim 1, it is characterised in that：The inner guide wire it is straight
Footpath calculates with the internal diameter of needle tubing according to the characteristic impedance formula of coaxial cable, it is ensured that characteristic impedance is 50 Ω.
9. the microwave melt needle of a kind of magnetic resonance compatible according to claim 1, it is characterised in that：The intermediate insulation set
Afterbody cross section is with needle tubing afterbody cross section in a plane, and inner guide wire is more higher than intermediate insulation set and needle tubing afterbody cross section
Go out 2mm-3mm, in needle handle afterbody inner guide wire, intermediate insulation set and needle tubing afterbody cross section and coaxial fitting welding, and lead to
Cross slip screwed pipe to fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620789923.4U CN206138201U (en) | 2016-07-26 | 2016-07-26 | Compatible microwave ablation needle of magnetic resonance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620789923.4U CN206138201U (en) | 2016-07-26 | 2016-07-26 | Compatible microwave ablation needle of magnetic resonance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206138201U true CN206138201U (en) | 2017-05-03 |
Family
ID=58616971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620789923.4U Active CN206138201U (en) | 2016-07-26 | 2016-07-26 | Compatible microwave ablation needle of magnetic resonance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107374719A (en) * | 2017-07-24 | 2017-11-24 | 南京邮电大学 | A kind of heating ablation pin and application process |
| CN107647909A (en) * | 2016-07-26 | 2018-02-02 | 安徽硕金医疗设备有限公司 | A kind of microwave melt needle of magnetic resonance compatible |
| CN107753104A (en) * | 2017-12-01 | 2018-03-06 | 中国科学技术大学 | Compatible water-cooled microwave ablation needle of a kind of magnetic and preparation method thereof |
-
2016
- 2016-07-26 CN CN201620789923.4U patent/CN206138201U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107647909A (en) * | 2016-07-26 | 2018-02-02 | 安徽硕金医疗设备有限公司 | A kind of microwave melt needle of magnetic resonance compatible |
| CN107374719A (en) * | 2017-07-24 | 2017-11-24 | 南京邮电大学 | A kind of heating ablation pin and application process |
| CN107753104A (en) * | 2017-12-01 | 2018-03-06 | 中国科学技术大学 | Compatible water-cooled microwave ablation needle of a kind of magnetic and preparation method thereof |
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huang Xiaoyan Inventor after: Li Maoquan Inventor after: Zhou Yufu Inventor after: Qiu Bensheng Inventor before: Huang Xiaoyan Inventor before: Zhou Yufu Inventor before: Qiu Bensheng |