CN107647909A - A kind of microwave melt needle of magnetic resonance compatible - Google Patents
A kind of microwave melt needle of magnetic resonance compatible Download PDFInfo
- Publication number
- CN107647909A CN107647909A CN201610592283.2A CN201610592283A CN107647909A CN 107647909 A CN107647909 A CN 107647909A CN 201610592283 A CN201610592283 A CN 201610592283A CN 107647909 A CN107647909 A CN 107647909A
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- Prior art keywords
- needle
- needle tubing
- magnetic resonance
- intermediate insulation
- guide wire
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Classifications
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- 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
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
-
- 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
- A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
- A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
-
- 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
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00589—Coagulation
-
- 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 kind of microwave melt needle of magnetic resonance compatible, including：The syringe needle of integration,Inner guide wire,Intermediate insulation set,Needle tubing,Slide screwed pipe,Annular catch,Outer layer insulation skin,Needle handle,White clear storage box,Aqueduct,Coaxial fitting,The syringe needle and inner guide wire of integration are nested in intermediate insulation set,Syringe needle and intermediate insulation set front end contact surface are fixed using medical UV gluing knots,Intermediate insulation set is nested in needle tubing again,Intermediate insulation covers front end and needle tubing contact surface is fixed using medical UV gluing knots,Annular catch is fixed on needle tubing afterbody,Screwed pipe is slided to be inserted in needle tubing,Annular catch is used to keep out slip screwed pipe,Needle tubing is nested in outer layer insulation skin again,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,Welded in the coaxial fitting made of copper of needle handle afterbody and needle tubing afterbody,Slide screwed pipe and coaxial fitting screw-internal thread fit anchor tip.
Description
Technical field
The invention belongs to medical instruments field, and in particular to a kind of microwave melt needle of magnetic resonance compatible, suitable in core
Tumour ablation treating under magnetic 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 for intervening radiation therapy tumour, by microwave melt needle（Transmitting antenna）Intervene human tumor
Tissue, goes out microwave energy by its syringe needle sustained radiation so that polar molecule in tissue high-speed motion, phase in the presence of microwave field
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, cause irreversible necrosis, reach the purpose of tumour ablation.Microwave
Ablation tumour is safe, small to human body wound, efficient, thermocoagulation is thorough, can suppress the diffusion of tumour cell, so more
To get over the high praise by doctors.Commercial microwave system is 915Mhz and 2.45Ghz microwave frequencies at present, microwave melt needle conduct
The core component of ablation system, directly determine the key indexs such as the scope, shape and ablation efficiency of tumour ablation.
However, existing microwave melt needle also has some limitations：
1. the Minimally Invasive Surgery that microwave ablation belongs under imaging guiding, existing microwave melt needle is due in material technology etc.
Limitation can be only applied under CT and ultrasound environments, it is impossible to be used under magnetic resonance environment.
2. the syringe needle emitting structural of existing microwave melt needle is by the inner wire wire bond with the coaxial cable inside needle tubing
Connect and fix, not enough firmly, easily come off during surgical, patient is caused greatly to injure.
3. the Water-cooling circulating of existing microwave melt needle is complicated, increase processing assembling difficulty.
The content of the invention
In view of in this, the present invention provides a kind of magnetic resonance compatible, syringe needle and the integration of inner wire silk and cooling structure letter
Single microwave melt needle.
A kind of magnetic resonance compatible microwave melt needle, including：The syringe needle of integration, inner guide wire, intermediate insulation set, needle tubing, cunning
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 are 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 needle tubing again, and intermediate insulation set front end and needle tubing contact surface are consolidated using medical UV gluing knots
It is fixed；Annular catch is fixed on needle tubing afterbody；Slide screwed pipe to be inserted in needle tubing, annular catch is used to keep out slip screw thread
Pipe；Needle tubing is nested in outer layer insulation skin again, 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 are embedded in needle handle；Welded in the coaxial fitting made of copper of needle handle afterbody and needle tubing afterbody,
Slide screwed pipe and coaxial fitting screw-internal thread fit, anchor tip.
In the integrated syringe needle and inner guide wire, needle length 4mm-12mm, a diameter of 1.8mm-2.2mm, inside lead
Filament length degree is 191mm-199mm, a diameter of 0.5mm-0.6mm.
It is 188mm-196mm that the intermediate insulation set, which is shorter in length than inner guide wire length, and internal diameter is a diameter of slightly larger than inner guide wire
0.55mm-0.65mm, front end 2mm external diameter are all mutually 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, which 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 all mutually 1.8mm-2.2mm with needle diameter, ensures 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, external diameter 3mm-4mm, and width is
1mm-3mm。
The slip screwed pipe is M5 screw threads, and hole internal diameter is 1.9mmm-2.3mmm, width 4mm- slightly larger than needle tubing external diameter
6mm。
The external insulation skin length is 137mm-145mm, thickness 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 and the internal diameter of needle tubing are calculated according to the characteristic impedance formula of coaxial cable, ensure special
Property impedance is 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 sliding screwed pipe.
A kind of manufacture method of magnetic resonance compatible puncture needle of the present invention mainly includes the following steps that：
（1）, by integration syringe needle and inner guide wire in syringe needle spray high temperature resistant Teflon, inner guide wire surface and cross section plating
Silver；The integrated syringe needle and inner guide wire are magnetic resonance compatible titanium alloy material；
（2）, the syringe needle of integration and inner guide wire be nested in intermediate insulation set, syringe needle and intermediate insulation set front end contact surface point
Medical UV glue is not smeared, and bonding is dried 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 be slightly larger than needle tubing skin depth, by intermediate insulation
Set is nested in needle tubing, and intermediate insulation set front end and needle tubing contact surface smear medical UV glue respectively, and are carried out with ultra violet lamp
Dry and bond；The needle tubing is magnetic resonance compatible titanium alloy material；
（4）, annular catch is bonded in away from needle tubing afterbody 2mm；The annular catch is that copper material or magnetic resonance are simultaneous
Hold titanium alloy material；
（5）, by slide screwed pipe be inserted in from needle end in needle tubing；The slip screwed pipe is copper material or magnetic resonance compatible titanium
Alloy material；
（6）, coaxial fitting made of copper and needle tubing afterbody welded, slide screwed pipe and match somebody with somebody with coaxial fitting internal thread
Close, anchor tip；
（7）, outer layer insulation skin one end outer surface one layer of medical UV glue of smearing is fixed on the white clear storage box of needle handle front end
In, needle tubing is nested into outer layer insulation skin from needle handle tail end；The outer layer insulation skin is silastic material；
（8）, installation needle handle and aqueduct.
A kind of microwave melt needle of magnetic resonance compatible of the present invention, beneficial effect are：
1. microwave melt needle provided by the invention uses non-magnetic material, performed the operation suitable for the intervention under magnetic resonance imaging environment.Magnetic
Resonance image-forming guiding is accurate without ionising radiation, image resolution ratio height, treatment to human body, contributes to the accurate positioning tumor position of doctor
Put and its edge, completely inactivate tumor tissues, improve the success rate of operation, and do not produce unfavorable shadow to human normal tissue
Ring, mitigate patient suffering.
2. syringe needle and inner wire the silk integration of microwave melt needle provided by the invention, are connected firmly, in surgical procedure
It will not fall off and patient is damaged.
3. the cooling structure of microwave melt needle provided by the invention is simple, parts be optimized to a certain extent and
Reduce, reduce processing assembling difficulty, water cooling can effectively reduce temperature in needle tubing outer surface, prevent needle tubing overheat to human body just
Normal tissue burn.
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.
The syringe needle 1-1 of integration, inner guide wire 1-2, intermediate insulation set 3, needle tubing 3, slide screw thread 4, be annular catch 5, outer
Layer insulated hull 6, needle handle 7, storage box 8, aqueduct 9, coaxial fitting 10.
Embodiment：
Embodiment is given below so that the present invention to be specifically described, it is necessary to it is pointed out here that be that following examples are served only for
The present invention is further described, it is impossible to be interpreted as limiting the scope of the invention, the person skilled in the art in the field
Protection scope of the present invention is still fallen within according to some nonessential modifications and adaptations that present invention is made to the present invention.
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 are nested in intermediate insulation set 2, and syringe needle 1-1 is with
Between the front end contact surface of insulation sleeve 2 fixed using medical UV gluing knots；Intermediate insulation set 2 is nested in needle tubing 3 again, intermediate insulation set
2 front ends and the contact surface of needle tubing 3 are fixed using medical UV gluing knots；Annular catch 5 is fixed on the afterbody of needle tubing 3；Slide screwed pipe 4
It is inserted in needle tubing, annular catch 5, which is used to keep out, slides screwed pipe 4；Needle tubing 3 is nested in outer layer insulation skin 6 again, 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；Welded in the coaxial fitting 10 made of copper of the afterbody of needle handle 7 and the afterbody of needle tubing 3, slide screwed pipe 4 and coaxial fitting
10 screw-internal thread fits, anchor tip.
In integrated the syringe needle 1-1 and inner guide wire 1-2, syringe needle 1-1 length is 4mm-12mm, a diameter of 1.8mm-
2.2mm, inner guide wire 1-2 length are 191mm-199mm, a diameter of 0.5mm-0.6mm.
It is 188mm-196mm that the intermediate insulation, which covers 2 length, and internal diameter is slightly larger than a diameter of 0.55mm- of inner guide wire 1-2
0.65mm, front end 2mm external diameter are all mutually 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 are nested in intermediate insulation set 2, syringe needle 1-1 and intermediate insulation
2 front end contact surfaces are covered to be adhesively fixed under ultraviolet irradiation using medical UV glue.
The length of 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 are all mutually 1.8mm-2.2mm with syringe needle 1-1 diameters, ensure 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 uses
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, external diameter 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, thickness 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
The gap crossed between external insulation skin 6 and needle tubing 3 flows into the surface of needle tubing 3, and needle tubing 3 is cooled down.
Described one layer of high temperature resistant Teflon of syringe needle 1-1 surface sprayings, prevent from gluing glutinous tissue during use, effectively reduce and rub
Wipe coefficient.
The inner guide wire 1-2 surfaces and afterbody cross section are silver-plated, ensure electric conductivity.
The inner surface of needle tubing 3 and afterbody cross section are silver-plated, ensure 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, protects
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
Weld with copper coaxial fitting 10, and fixed by sliding screwed pipe 4 in 3 afterbody cross sections.
The aqueduct 9 is inserted in handle 7, is fed the water into by wriggling rod in white clear storage box 8, and white clear stores
Water in water box 8 flows into the surface of needle tubing 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 invention mainly includes the following steps that：
（1）, by integration syringe needle 1-1 and inner guide wire 1-2 in syringe needle 1-1 spray high temperature resistant Teflon, inner guide wire 1-2 surfaces
It is silver-plated with cross section；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 intermediate insulation set 2
Front end contact surface smears medical UV glue respectively, and bonding is dried with ultra violet lamp；The intermediate insulation set 2 is polytetrafluoro
Vinyl material；
（3）, the inner surface of needle tubing 3 and afterbody cross section is silver-plated, silver plating thicknesses are slightly larger than the skin depth of needle tubing 3, will it is middle absolutely
Edge set 2 is nested in needle tubing 3, and intermediate insulation covers 2 front ends and the contact surface of needle tubing 3 smears medical UV glue respectively, and is shone with uviol lamp
Penetrate and bonding is dried；The needle tubing 3 is magnetic resonance compatible titanium alloy material；
（4）, annular catch 5 is bonded in away from the afterbody 2mm of needle tubing 3；The annular catch 5 is copper material or magnetic resonance
Compatible titanium alloy material；
（5）, slide screwed pipe 4 be inserted in from syringe needle 1-1 ends in needle tubing 3；The slip screwed pipe 4 is that copper material or magnetic resonance are simultaneous
Hold titanium alloy material；
（6）, coaxial fitting 10 made of copper and the afterbody of needle tubing 3 welded, slide screwed pipe 4 and spiral shell in coaxial fitting 10
Line coordinates, anchor tip；
（7）, one end outer surface of outer layer insulation skin 6 one layer of medical UV glue of smearing is fixed on the white clear water storage of the front end of needle handle 7
In box 8, needle tubing 3 is nested into outer layer insulation skin 6 from the tail end of needle handle 7；The outer layer insulation skin 6 is silastic material；
（8）, installation needle handle 7 and aqueduct 9.
The general principle and principal character of the present invention has been shown and described above.It should be understood by those skilled in the art that
The present invention is not limited to the above embodiments, merely illustrating the principles of the invention described in above-described embodiment and specification,
Without departing from the spirit and scope, various changes and modifications of the present invention are possible, and these changes and improvements all fall
Enter in scope of the claimed invention.The claimed scope of the present invention is by appended claims and its equivalent circle
It is fixed.
Claims (10)
- A kind of 1. 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, slide screwed pipe, annular catch, outer layer insulation skin, needle handle, white clear storage box, aqueduct, coaxial cable Joint, the integrated syringe needle and inner guide wire are nested in intermediate insulation set, and syringe needle and intermediate insulation set front end contact surface make Fixed with medical UV gluing knots；Intermediate insulation set is nested in needle tubing again, and intermediate insulation set front end and needle tubing contact surface use doctor Fixed with UV gluing knots；Annular catch is fixed on needle tubing afterbody；Slide screwed pipe to be inserted in needle tubing, annular catch is used to support Gear slides screwed pipe；Needle tubing is nested in outer layer insulation skin again, 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 Pipe afterbody welds, and slides screwed pipe and coaxial fitting screw-internal thread fit, anchor tip.
- A kind of 2. microwave melt needle of magnetic resonance compatible according to claim 1, it is characterised in that：The integrated pin In head and inner guide wire, needle length 4mm-12mm, a diameter of 1.8mm-2.2mm, inner guide wire length is 191mm-199mm, directly Footpath is 0.5mm-0.6mm.
- A kind of 3. microwave melt needle 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 all mutually 1.8mm-2.2mm with needle diameter, and it is 1.61mm-1.95mm that rear end external diameter, which is slightly less than needle tubing internal diameter,.
- A kind of 4. microwave melt needle of magnetic resonance compatible according to claim 1, it is characterised in that：The needle tubing length is short Be 186mm-194mm in intermediate insulation set 2mm, it is 1.66mm-1.99mm that internal diameter covers rear end external diameter slightly larger than intermediate insulation, external diameter It is all mutually 1.8mm-2.2mm with needle diameter, ensures syringe needle, intermediate insulation set front end, needle tubing outer surface three on one face.
- A kind of 5. microwave melt needle of magnetic resonance compatible according to claim 1, it is characterised in that：The annular catch Internal diameter is 1.9mm-2.3mm, external diameter 3mm-4mm, width 1mm-3mm slightly larger than needle tubing external diameter.
- A kind of 6. microwave melt needle 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, width 4mm-6mm slightly larger than needle tubing external diameter.
- A kind of 7. microwave melt needle of magnetic resonance compatible according to claim 1, it is characterised in that：The external insulation skin length It is 1.85mm-2.25mm slightly larger than needle tubing external diameter to spend for 137mm-145mm, thickness 0.05mm-0.1mm, internal diameter.
- A kind of 8. microwave melt needle of magnetic resonance compatible according to claim 1, it is characterised in that：The inner guide wire it is straight The internal diameter of footpath and needle tubing is calculated according to the characteristic impedance formula of coaxial cable, and guarantee characteristic impedance is 50 Ω.
- A kind of 9. microwave melt needle of magnetic resonance compatible according to claim 1, it is characterised in that：The intermediate insulation set With needle tubing afterbody cross section in a plane, inner guide wire is more higher than intermediate insulation set and needle tubing afterbody cross section for afterbody cross section Go out 2mm-3mm, welded in needle handle afterbody inner guide wire, intermediate insulation set and needle tubing afterbody cross section and coaxial fitting, and lead to Slip screwed pipe is crossed to fix.
- A kind of 10. microwave melt needle of magnetic resonance compatible according to claim 1, it is characterised in that：One kind of the present invention The manufacture method of magnetic resonance compatible puncture needle mainly includes the following steps that：（1）, by integration syringe needle and inner guide wire in syringe needle spray high temperature resistant Teflon, inner guide wire surface and cross section plating Silver；The integrated syringe needle and inner guide wire are magnetic resonance compatible titanium alloy material；（2）, the syringe needle of integration and inner guide wire be nested in intermediate insulation set, syringe needle and intermediate insulation set front end contact surface point Medical UV glue is not smeared, and bonding is dried 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 be slightly larger than needle tubing skin depth, by intermediate insulation Set is nested in needle tubing, and intermediate insulation set front end and needle tubing contact surface smear medical UV glue respectively, and are carried out with ultra violet lamp Dry and bond；The needle tubing is magnetic resonance compatible titanium alloy material；（4）, annular catch is bonded in away from needle tubing afterbody 2mm；The annular catch is that copper material or magnetic resonance are simultaneous Hold titanium alloy material；（5）, by slide screwed pipe be inserted in from needle end in needle tubing；The slip screwed pipe is copper material or magnetic resonance compatible titanium Alloy material；（6）, coaxial fitting made of copper and needle tubing afterbody welded, slide screwed pipe and match somebody with somebody with coaxial fitting internal thread Close, anchor tip；（7）, outer layer insulation skin one end outer surface one layer of medical UV glue of smearing is fixed on the white clear storage box of needle handle front end In, needle tubing is nested into outer layer insulation skin from needle handle tail end；The outer layer insulation skin is silastic material；（8）, installation needle handle and aqueduct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610592283.2A CN107647909A (en) | 2016-07-26 | 2016-07-26 | A kind of microwave melt needle of magnetic resonance compatible |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610592283.2A CN107647909A (en) | 2016-07-26 | 2016-07-26 | A kind of microwave melt needle of magnetic resonance compatible |
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| CN107647909A true CN107647909A (en) | 2018-02-02 |
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| US20040181219A1 (en) * | 2000-02-08 | 2004-09-16 | Gyrus Medical Limited | Electrosurgical instrument and an electrosugery system including such an instrument |
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-
2016
- 2016-07-26 CN CN201610592283.2A patent/CN107647909A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040181219A1 (en) * | 2000-02-08 | 2004-09-16 | Gyrus Medical Limited | Electrosurgical instrument and an electrosugery system including such an instrument |
| US20060052850A1 (en) * | 2004-09-03 | 2006-03-09 | Darmos George P | Hybrid cannula/electrode medical device and method |
| US20090118727A1 (en) * | 2007-11-05 | 2009-05-07 | Robert Pearson | Ablation devices and methods of using the same |
| CN102119009A (en) * | 2008-07-15 | 2011-07-06 | 凯斯费特股份有限公司 | Catheter and method for improved ablation |
| CN202554105U (en) * | 2012-05-29 | 2012-11-28 | 孙建新 | Small diameter water-cooled microwave ablation needle |
| CN104188721A (en) * | 2014-09-18 | 2014-12-10 | 安隽医疗科技(南京)有限公司 | Novel ablation monopolar needle |
| CN205054430U (en) * | 2015-09-11 | 2016-03-02 | 盛林 | Microwave ablation needle |
| CN206138201U (en) * | 2016-07-26 | 2017-05-03 | 安徽硕金医疗设备有限公司 | Compatible microwave ablation needle of magnetic resonance |
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