CN106236255A - There is blood vessel microwave melt needle and the preparation method of temperature controlling function - Google Patents
There is blood vessel microwave melt needle and the preparation method of temperature controlling function Download PDFInfo
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- CN106236255A CN106236255A CN201610716071.0A CN201610716071A CN106236255A CN 106236255 A CN106236255 A CN 106236255A CN 201610716071 A CN201610716071 A CN 201610716071A CN 106236255 A CN106236255 A CN 106236255A
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- shank
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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
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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
- 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
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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
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00345—Vascular system
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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
- 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
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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
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00696—Controlled or regulated parameters
- A61B2018/00714—Temperature
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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
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00791—Temperature
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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
- 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
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Abstract
The present invention relates to a kind of blood vessel microwave melt needle with temperature controlling function and preparation method, belong to the technical field of medical apparatus and instruments.The ablation needle of the present invention includes that radiation head, radiation head are arranged in tapered needle, and the front end of shank is fixed in tapered needle, and the rear end of shank is connected with water tank；It is provided with temperature sensor on shank, in shank, is provided with stainless steel tube and coaxial cable；Stainless steel tube is sheathed on coax and front end and medium socket seal, and forms intake antrum between inwall and the coaxial cable of stainless steel tube；Water chamber is formed between outer wall and the inwall of described shank of stainless steel tube.The ablation needle of the present invention direct transdermal can be punctured to genus limb vein and the bulk venosomes of the shallow table of lower limb after positioning, take multiple spot to puncture Microwave Coagulation treatment and make the permanent Guan Bi of lesion vessels, have that treatment time is short, intraoperative hemorrhage is few, to recover fast patient suffering light, advantage simple to operate.
Description
Technical field
The present invention relates to the technical field of medical apparatus and instruments, it is more particularly related to a kind of, there is temperature controlling function
Blood vessel microwave melt needle.
Background technology
It is the common frequently-occurring diseases of the mankind that varicose venous diseases of lower limbs is also called lower limb chronic insufficiency, clinical generally uses
Operative treatment, including big (little) saphena high ligation, big (little) saphena and stripping of varicose veins etc..Owing to operation is to trouble
The wound of person compared with big, normally result in slight illness and recover slow, hospital stays long postoperative skin and have cicatrix, and Infection probability is big
Operation risk is higher.
In recent years, the treatment of varicose veins of the lower extremity open surgery was progressively substituted by minimal invasive operation, the most both at home and abroad
Existing Minimally Invasive Surgery mainly has venae subcutaneae rotary-cut to absorb (TIPP), laser therapy (EVET), radio-frequency (RF) ablation (RFA), abdominal cavity
Mirror ligation etc., but still suffer from that wound is bigger than normal, operation technique is complicated, apparatus expensive, the problem such as should not promote.Specifically, exist
When radio frequency and laser heat setting, owing to physical energy is different, the heat setting Guan Bi of blood vessel is thorough not, and relatively easy recurrence, being formed can
Mobile thrombosis；It addition, indication is limited, it is impossible to the ulcus cruris that treatment causes because of traffic passages through which vital energy circulates functional defect.
Summary of the invention
In order to solve above-mentioned technical problem of the prior art, it is an object of the invention to provide one and there is temperature controlling function
Blood vessel microwave melt needle.
In order to realize foregoing invention purpose, a first aspect of the present invention relates to a kind of ablation needle, and its technical scheme is as follows:
A kind of blood vessel microwave melt needle with temperature controlling function, including radiation head, tapered needle and shank, its feature exists
In: described radiation head is arranged in described tapered needle, and the front end of described shank is fixed in the round table surface of described tapered needle,
The rear end of described shank is fixing with water tank to be connected；The first temperature sensor, described shank it is provided with on the outer surface of described shank
Inside it is provided with stainless steel tube and coaxial cable；The inner wire of described coaxial cable is fixed in the endoporus of radiation head afterbody and is welded with
Medium socket, described coaxial cable rear end is connected with radio-frequency joint；Described stainless steel tube is sheathed on coax and its front end
Closely cooperating with the round platform of medium socket and seal, the rear end of described stainless steel tube and water inlet end connect；Described stainless steel tube interior
Space between wall and coaxial cable forms intake antrum；It is provided with opening on wall near the front end of described stainless steel tube and makes institute
Stating formation water chamber between the outer wall of stainless steel tube and the inwall of described shank, described water chamber is connected with water side.
Wherein, described water tank is arranged on handle, and described radio-frequency joint, water inlet end and water side are arranged on water tank, and
And be additionally provided with the second temperature sensor and temperature sensing coupling plug-in unit on described water tank, and described first temperature sensor and
Second temperature sensor is all connected to described temperature sensing coupling plug-in unit by lead-in wire.
Wherein, the body of rod of described shank is provided with anti-stick coating and withdraw of the needle sign.
Wherein, described shank being provided with counterbore, described first temperature sensor is arranged on described counterbore, and described
First temperature sensor protrudes from described shank outer surface 0.1～0.2mm, for monitoring Endovascular microwave spoke in real time during work
Temperature in the range of penetrating.
Wherein, a diameter of the 1.3 of described shank～1.6mm, the effective length of shank is 100～120mm.Described shank and
Tapered needle scribbles Teflon anti-stick coating, thus can effectively prevent heat in the worked layer of blood vessel microwave melt needle of temperature controlling function
Needle point that coagulation zone territory is caused because temperature is too high and the adhesion of intraluminal tissue.
Wherein, described first temperature sensor and the second temperature sensor are NTC temperature sensor.
A second aspect of the present invention, relates to the preparation method of a kind of ablation needle.
The preparation method of the blood vessel microwave melt needle of described temperature controlling function is as follows:
S101: the inner wire of coaxial cable loads the endoporus of radiation head afterbody, uses the mode of riveting and welding to make two
Person connects fixing, medium socket is assemblied in cable head-end position, and medium socket and coaxial cable is welded；
S102: loaded by radiation head in the tail end endoporus of tapered needle, uses high-temperature seal adhesive to fill and is sintered to fix；
S103: be inserted in stainless steel tube step site to medium socket from the tail end of coaxial cable, and make the internal diameter of stainless steel tube
Closely cooperate with medium socket outer diameter of step, and welded airtight, form intake antrum；Described stainless steel tube is near the one of medium socket
It is provided with opening on the sidewall of end；
S104: embedded aperture is set on shank, the diameter of described aperture and the first temperature sensor maximum outside diameter phase
Coupling, then installs the first temperature sensor, is worn by described little outer end of hole by the lead-in wire in the first temperature sensor in shank
Enter and pass from shank tail end and expose lead-in wire, described aperture fills up fluid sealant, temperature sensor is abundant by the one end that goes between
It is embedded in shank aperture, makes temperature sensor head end slightly protrude from the outer surface of shank；
S105: shank is penetrated to tapered needle rear end step external diameter by stainless steel tube tail end, connects with high temperature resistant waterproof is gluing；
S106: the conductor of coaxial cable end is welded with the conductor of radio-frequency joint respectively, the end of stainless steel tube and entering
Water end (W.E.) welds, shank and the welding of water tank front end；
S107: be provided with on the sidewall of water tank band lead-in wire the second temperature sensor, described first temperature sensor and
The lead-in wire of the second temperature sensor welds with temperature sensing coupling plug-in unit respectively；
S108: temperature sensing coupling plug-in unit, radio-frequency joint, water inlet end are arranged on the position that water tank is corresponding with water side；
S109: in water tank is arranged on handle and by gluing fixing.
Compared with prior art, the blood vessel microwave melt needle with temperature controlling function of the present invention has following useful effect
Really:
The ablation needle of the present invention is simple to operate, and make use of the bio-heating effectiveness of microwave, has stable output power, frequently
Rate is accurate, radiation efficiency is high, tissue quick heating, be heated evenly, the advantage such as thermal penetration appropriateness, thermocoagulation scope are easily-controllable；And
When Microwave Coagulation, start temperature control simultaneously and Water-cooling circulating runs, it is possible to effectively guarantee safety and the effectiveness for the treatment of.
Accompanying drawing explanation
Fig. 1 is the structural representation of the fore-end of the ablation needle of the embodiment of the present invention.
Fig. 2 is the structural representation of the rear end part of the ablation needle of the embodiment of the present invention.
Wherein, the implication representated by each reference is respectively as follows:
1-radiation head, 2-tapered needle, 3-shank, 4-sign, 5-stainless steel tube, 6-coaxial cable, 7-water tank, 8-
Radio-frequency joint 9-water inlet end, 10-water side, 12-handle, 13,14-temperature sensing coupling plug-in unit, 15-the second temperature sensor.
Detailed description of the invention
Below with reference to specific embodiment, the blood vessel microwave melt needle with temperature controlling function of the present invention is done into one
The elaboration of step, to help those skilled in the art that inventive concept, the technical scheme of the present invention are had more complete, accurate and goed deep into
Understanding.
Embodiment 1
The blood vessel microwave melt needle of the temperature controlling function of the present embodiment, including radiation head 1, tapered needle 2 and shank 3.Described
Radiation head 1 is arranged in described tapered needle 2, and the front end of described shank 3 is fixed in the round table surface of described tapered needle 2, institute
State that the rear end of shank 3 is fixing with water tank 7 to be connected；Anti-stick coating and withdraw of the needle sign it is provided with on the body of rod of described shank, and
And it is provided with the first temperature sensor 4 on the outer surface of described shank 3, it is provided with stainless steel tube 5 and coaxial cable in described shank 3
6；The inner wire of described coaxial cable 6 is fixed in the endoporus of radiation head 1 afterbody and is welded with medium socket, described coaxial cable 6
Rear end is connected with radio-frequency joint 8.Described stainless steel tube 5 is set on coaxial cable 6 and its front end is tight with the round platform of medium socket
Close fit also seals, and the rear end of described stainless steel tube 5 and water inlet end connect；Between inwall and the coaxial cable of described stainless steel tube
Space formed intake antrum；It is provided with opening on wall near the front end of described stainless steel tube and makes the outer wall of described stainless steel tube
And forming water chamber between the inwall of described shank, described water chamber is connected with water side.Described water tank 7 is arranged on handle 12
On, described radio-frequency joint 8, water inlet end 9 and water side 10 are arranged on water tank, and are additionally provided with the second temperature on described water tank 7
Degree sensor 15 and temperature sensing coupling plug-in unit 13,14, and described first temperature sensor 4 and the second temperature sensor 15 equal
It is connected to described temperature sensing coupling plug-in unit 13,14 by lead-in wire.Specifically, described shank is provided with counterbore, described
One temperature sensor is arranged on described counterbore, and described first temperature sensor protrude from described shank outer surface 0.1～
0.2mm, is used for the temperature in the range of real-time monitoring Endovascular microwave radiation during work.Described shank a diameter of 1.3～
1.6mm, the effective length of shank is 100～120mm.Described first temperature sensor and the second temperature sensor are NTC temperature
Sensor.Described shank and tapered needle scribble anti-stick coating, thus can effectively prevent the blood vessel microwave melt needle of temperature controlling function
Needle point that in worked layer, heat setting region is caused because temperature is too high and the adhesion of intraluminal tissue.In the present embodiment, the first temperature
Degree sensor and Endovascular contact tissue direct temperature measurement, while starting Microwave Coagulation, monitoring microwave is at lumen of vessels spoke in real time
Temperature in the range of penetrating, it is ensured that lesion vessels is damaged thoroughly and inexcessive heat setting.The second temperature sensor arranged on water tank can be real
Time monitoring shank body of rod temperature, the abnormal too high normal tissue of bar temperature causes scald to prevent recirculated water from occurring.The control of the present embodiment
The blood vessel microwave melt needle of temperature function is under B ultrasonic is monitored or under behind preoperative blood vessel B ultrasonic, angiography location, direct transdermal is punctured to
The genus limb vein of the shallow table of limb and bulk venosomes, take multiple spot to puncture Microwave Coagulation treatment and make the permanent Guan Bi of lesion vessels,
Reach therapeutic purposes and accomplish real Wicresoft, reduce the damage to normal surrounding tissue, alleviate patient suffering, shorten and recover week
Phase.
The preparation technology of the blood vessel microwave melt needle of described temperature controlling function is summarized as follows:
S101: the inner wire of coaxial cable loads the endoporus of radiation head afterbody, uses the mode of riveting and welding to make two
Person connects fixing, medium socket is assemblied in cable head-end position, and medium socket and coaxial cable is welded；
S102: loaded by radiation head in the tail end endoporus of tapered needle, uses high-temperature seal adhesive to fill and is sintered to fix；
S103: be inserted in stainless steel tube step site to medium socket from the tail end of coaxial cable, and make the internal diameter of stainless steel tube
Closely cooperate with medium socket outer diameter of step, and welded airtight, form intake antrum；Described stainless steel tube is near the one of medium socket
It is provided with opening on the sidewall of end；
S104: embedded aperture is set on shank, the diameter of described aperture and the first temperature sensor maximum outside diameter phase
Coupling, then installs the first temperature sensor, is worn by described little outer end of hole by the lead-in wire in the first temperature sensor in shank
Enter and pass from shank tail end and expose lead-in wire, described aperture fills up fluid sealant, temperature sensor is abundant by the one end that goes between
It is embedded in shank aperture, makes temperature sensor head end slightly protrude from the outer surface of shank；
S105: shank is penetrated to tapered needle rear end step external diameter by stainless steel tube tail end, connects with high temperature resistant waterproof is gluing；
S106: the conductor of coaxial cable end is welded with the conductor of radio-frequency joint respectively, the end of stainless steel tube and entering
Water end (W.E.) welds, shank and the welding of water tank front end；
S107: be provided with on the sidewall of water tank band lead-in wire the second temperature sensor, described first temperature sensor and
The lead-in wire of the second temperature sensor welds with temperature sensing coupling plug-in unit respectively；
S108: temperature sensing coupling plug-in unit, radio-frequency joint, water inlet end are arranged on the position that water tank is corresponding with water side；
S109: in water tank is arranged on handle and by gluing fixing.
During assembling all require welding in place of all use high temperature tin welding, it is desirable to airtight in place of welding, without rosin joint, all
Require that bonding need high temperature marine glue is bonding, and its technique for sticking of strict implement, carry out detection after having assembled real with in vitro
Test.
For the ordinary skill in the art, the present invention is simply exemplarily described by specific embodiment,
Obviously the present invention implements and is not subject to the restrictions described above, as long as the method design that have employed the present invention is entered with technical scheme
The improvement of various unsubstantialities of row, or the most improved design by the present invention and technical scheme directly apply to other occasion
, all within protection scope of the present invention.
Claims (8)
1. there is a blood vessel microwave melt needle for temperature controlling function, including radiation head, tapered needle and shank, it is characterised in that:
Described radiation head is arranged in described tapered needle, and the front end of described shank is fixed in the round table surface of described tapered needle, institute
State that the rear end of shank is fixing with water tank to be connected；The first temperature sensor it is provided with, in described shank on the outer surface of described shank
It is provided with stainless steel tube and coaxial cable；The inner wire of described coaxial cable is fixed in the endoporus of radiation head afterbody and is welded with Jie
Matter set, described coaxial cable rear end is connected with radio-frequency joint；Described stainless steel tube sheathed on coax and its front end with
The round platform of medium socket closely cooperates and seals, and the rear end of described stainless steel tube and water inlet end connect；The inwall of described stainless steel tube
And the space between coaxial cable forms intake antrum；It is provided with opening on wall near the front end of described stainless steel tube and makes described
Forming water chamber between outer wall and the inwall of described shank of stainless steel tube, described water chamber is connected with water side.
The blood vessel microwave melt needle with temperature controlling function the most according to claim 1, it is characterised in that: described water tank is arranged
On handle, described radio-frequency joint, water inlet end and water side are arranged on water tank, and are additionally provided with the second temperature on described water tank
Degree sensor and temperature sensing coupling plug-in unit, and described first temperature sensor and the second temperature sensor are all by lead-in wire even
It is connected to described temperature sensing coupling plug-in unit.
The blood vessel microwave melt needle with temperature controlling function the most according to claim 1, it is characterised in that: the bar of described shank
Anti-stick coating and withdraw of the needle sign it is provided with on body.
The blood vessel microwave melt needle with temperature controlling function the most according to claim 1, it is characterised in that: set on described shank
Being equipped with counterbore, described first temperature sensor is arranged on described counterbore, and described first temperature sensor protrudes from described
Shank outer surface 0.1～0.2mm.
The blood vessel microwave melt needle with temperature controlling function the most according to claim 1, it is characterised in that: described shank straight
Footpath is 1.3～1.6mm, and the effective length of shank is 100～120mm.
The blood vessel microwave melt needle with temperature controlling function the most according to claim 1, it is characterised in that: described shank and cone
Shape syringe needle scribbles Teflon anti-stick coating.
The blood vessel microwave melt needle with temperature controlling function the most according to claim 1, it is characterised in that: described first temperature
Sensor and the second temperature sensor are NTC temperature sensor.
8. the preparation method of a blood vessel microwave melt needle with temperature controlling function, it is characterised in that comprise the following steps:
S101: the inner wire of coaxial cable loads the endoporus of radiation head afterbody, uses the mode of riveting and welding to make both connect
Connect fixing, medium socket is assemblied in cable head-end position, and medium socket and coaxial cable are welded；
S102: loaded by radiation head in the tail end endoporus of tapered needle, uses high-temperature seal adhesive to fill and is sintered to fix；
S103: be inserted in stainless steel tube step site to medium socket from the tail end of coaxial cable, and make internal diameter and Jie of stainless steel tube
Matter set outer diameter of step closely cooperates, and is welded airtight, forms intake antrum；Described stainless steel tube is near one end of medium socket
Opening it is provided with on sidewall；
S104: embedded aperture is set on shank, diameter and the first temperature sensor maximum outside diameter of described aperture match,
Then first temperature sensor is installed, the lead-in wire in the first temperature sensor is penetrated in shank by described little outer end of hole and from
Shank tail end passes and exposes lead-in wire, fills up fluid sealant on described aperture, temperature sensor is substantially embedded into by the one end that goes between
In shank aperture, temperature sensor head end is made slightly to protrude from the outer surface of shank；
S105: shank is penetrated to tapered needle rear end step external diameter by stainless steel tube tail end, connects with high temperature resistant waterproof is gluing；
S106: the conductor of coaxial cable end is welded with the conductor of radio-frequency joint respectively, the end of stainless steel tube and water inlet end
Welding, shank and the welding of water tank front end；
S107: be provided with the second temperature sensor of band lead-in wire, described first temperature sensor and second on the sidewall of water tank
The lead-in wire of temperature sensor welds with temperature sensing coupling plug-in unit respectively；
S108: temperature sensing coupling plug-in unit, radio-frequency joint, water inlet end are arranged on the position that water tank is corresponding with water side；
S109: in water tank is arranged on handle and by gluing fixing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610716071.0A CN106236255A (en) | 2016-08-25 | 2016-08-25 | There is blood vessel microwave melt needle and the preparation method of temperature controlling function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610716071.0A CN106236255A (en) | 2016-08-25 | 2016-08-25 | There is blood vessel microwave melt needle and the preparation method of temperature controlling function |
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| CN106236255A true CN106236255A (en) | 2016-12-21 |
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| CN201610716071.0A Pending CN106236255A (en) | 2016-08-25 | 2016-08-25 | There is blood vessel microwave melt needle and the preparation method of temperature controlling function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021142910A1 (en) * | 2020-01-16 | 2021-07-22 | 南京康友医疗科技有限公司 | Ablation needle tube, microwave ablation needle, and microwave ablation treatment instrument |
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| EP2255742A1 (en) * | 2009-05-27 | 2010-12-01 | Vivant Medical, Inc. | Narrow gauge high strength choked wet tip microwave ablation antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021142910A1 (en) * | 2020-01-16 | 2021-07-22 | 南京康友医疗科技有限公司 | Ablation needle tube, microwave ablation needle, and microwave ablation treatment instrument |
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