CN105943157A - Vein ablation needle - Google Patents
Vein ablation needle Download PDFInfo
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- CN105943157A CN105943157A CN201610543828.0A CN201610543828A CN105943157A CN 105943157 A CN105943157 A CN 105943157A CN 201610543828 A CN201610543828 A CN 201610543828A CN 105943157 A CN105943157 A CN 105943157A
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- coagulation
- vein
- pin
- ablation needle
- fixing seat
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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
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
-
- 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
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
-
- 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
- A61B2018/00404—Blood vessels other than those in or around the heart
-
- 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
- A61B2018/00642—Sensing and controlling the application of energy with feedback, i.e. closed loop control
-
- 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
- A61B2018/00666—Sensing and controlling the application of energy using a threshold value
- A61B2018/00678—Sensing and controlling the application of energy using a threshold value upper
-
- 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
- A61B2018/00702—Power or energy
-
- 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
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1425—Needle
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
- A61B2218/002—Irrigation
Abstract
The invention provides a vein ablation needle, and relates to the technical field of medical appliances. The vein ablation needle comprises a fixed seat, an electrode plate, an electrocoagulation needle and a connecting wire, wherein the electrode plate is fixedly arranged in the fixed seat; one end of the electrocoagulation needle is connected with the electrode plate, and the other end of the electrocoagulation needle extends toward the outer side of the fixed seat for performing electrocoagulation ablation on an affected position; and one end of the connecting wire is connected with the electrode plate, and the other end of the connecting wire extends toward the outer side of the fixed seat for connecting the host of a vein ablation device. According to the vein ablation needle, the electrode plate is arranged in the fixed seat, one end of the electrode plate is connected with the electrocoagulation needle, the other end of the electrode plate is electrically connected with the host the vein ablation device, and medical staff can carry out electrocoagulation operation by holding the electrocoagulation needle with one hand conveniently, so that branches and ramus communicans of varicosed veins can be ablated, and malformed vessels and hemangioma can be ablated.
Description
Technical field
The present invention relates to technical field of medical instruments, particularly relate to a kind of vein ablation needle.
Background technology
Varicosis is common venous disease, refers to due to blood stasis, vein tube wall weakness
Etc. factor, the vein caused is tortuous, expansion.The vein at the multiple position of human body all can occur varicose,
Such as hemorrhoid are exactly a kind of varicosis in fact, and clinical visible also gastroesophageal varices is bent
, varicocele and abdominal wall varicosis etc..The position that varicosis occurs most frequently exists
Lower limb.According to medical statistics, the Adult Groups of 8.8%～10% suffers from obvious varicosis.
It is emphasized that along with progression of disease, most patients occur that stasis dermatitis, thrombotic are shallow
Phlebitis, hemorrhage, skin ulceration, have a strong impact on patient physically and mentally healthy, even disable.
Operation is the basic method for the treatment of varicose veins of the lower extremity.Traditional surgical approaches is great saphenous vein
High-order complexity anal fistula.Occur in that printing opacity looks at rotary-cut art, laser Closure, radio frequency straight in recent years
Melt the therapeutic method of surgery such as Closure and chamber mirror communicating branch.But these method costs are big, multiple
The rate of sending out is higher.
High frequency ablation art is the important component part of this art formula.In art poor because of individual patients condition
Different, only control high frequency pin power, translational speed and skin temperature by the experience of patient, without visitor
Sight index is weighed, and is easily caused skin burn or treatment is not thorough, be unfavorable for big model after changing patient
Enclose popularization.Further, traditional vein melts in instrument the most coarse to the design of ablation needle, existing
Some ablation needle ends are longer, and caliber is relatively thick, and the intracavity being suitable only for above-knee great saphenous vein disappears
Melt, it is impossible to process branch at one's knees, and operate relatively cumbersome, patient and spend higher, be unfavorable for big
Scope is promoted.
Summary of the invention
It is an object of the invention to provide a kind of vein ablation needle, to solve the vein of prior art
The problem that the operation complexity that ablating device exists is heavy, with high costs, be unfavorable for promoting on a large scale.
To achieve these goals, the present invention is by the following technical solutions:
The present invention provide a kind of vein ablation needle, including fixing seat, battery lead plate, coagulation pin and
Connecting line；Described battery lead plate is fixedly mounted in described fixing seat, and one end of described coagulation pin is even
Connecing described battery lead plate, the other end extends to the outside of described fixing seat, for disappearing affected part coagulation
Melt；One end of described connecting line connects described battery lead plate, and the other end is to the outside of described fixing seat
Extend, be used for connecting vein ablatograph main frame.
Further, vein ablation needle also includes protecting sheath；Described protection sheath is fixed on described fixing
Seat, and it is socketed in the outside of described coagulation pin.This technical scheme have the technical effect that protection
Sheath first can improve the fixed effect of coagulation pin, keep the profile of coagulation pin；Second prevents coagulation
The surface area contact patient skin that pin is too much, the 3rd beneficially hand-held grasping of medical personnel, avoids
Unnecessary contact, the 4th makes the application point of coagulation pin more concentrate, improve the efficiency of operation.
Medical personnel hold fixing seat and can precisely operate coagulation pin.
Further, also to include that temperature probe, described temperature probe are built in described for vein ablation needle
In protection sheath and electrically connect with described connecting line, for measuring the skin temperature in affected part.This technology
Scheme have the technical effect that temperature probe is in order to measure coagulation constantly along with the propelling of coagulation pin
Skin temperature at blood vessel, and in time temperature information is sent to the main frame of vein ablatograph, when
Host-initiated defence program when Pi Wen is too high, stops the power output of coagulation pin, protects patient's skin
Skin is from burn.
Further, described coagulation pin is provided with the cavity of hollow, and the inside of described fixing seat sets
Be equipped with and return blood device, described in return blood device and connect with described cavity, it is possible to observe blood from described coagulation
Pin returns blood device described in flowing into.Having the technical effect that of this technical scheme is provided with on coagulation pin
The cavity of hollow, when coagulation pin correctly thrusts the blood vessel needing coagulation to melt, blood is due to blood vessel
Pressure flow to cavity from blood vessel, utilize connect with cavity return blood device, it is possible to find in time
Returning blood, beneficially medical personnel grasp and puncture and the effect of coagulation.
Further, vein ablation needle also includes irrigator and conduit, and described irrigator is by described
Conduit connects with the described blood device that returns；Described irrigator is used for containing cleaning liquid.This technical scheme
Have the technical effect that at the end of coagulation, utilize irrigator and conduit to rush returning blood device
Wash, it is simple to coagulation pin the most again punctures coagulation or terminates coagulation Final finishing, packaging ablation needle.
Further, the material of described coagulation pin is metallic fiber.The technique effect of this technical scheme
It is: metallic fiber, compared with organic and inorganic fiber, has good conduction, heat conduction, leads
Magnetic, high temperature resistant, self lubricity and agglutinating property, and manufacture method is relatively simple, and cost price is just
Preferably.Frequent due to coagulation pin in use variations in temperature again, compared with metal material, metal is fine
Dimension material coagulation pin is more durable and safety.
Further, a length of 10-15 centimetre of described coagulation pin.The technology effect of this technical scheme
Fruit is: the coagulation pin of 10-15 centimeter length had both met the demand of operation, was unlikely to again coagulation
Pin is long have impact on operation.
Further, vein ablation needle also includes being arranged on the switch on described fixing seat and power is adjusted
Joint button, described switch is used for being switched on or switched off between described battery lead plate and vein ablatograph main frame
Connection；Described power adjustments button can regulate the watt level of coagulation pin.This technical scheme
The switch having the technical effect that on vein ablatograph main frame can control coagulation operation electricity
Source, and be arranged on the switch on fixing seat, facilitate medical personnel during operation coagulation, just
The start and stop coagulation operation of prompt ground；Power adjustments button is for regulating the coagulation power needed for operation.
The invention has the beneficial effects as follows: arrange battery lead plate in fixing seat, battery lead plate one end connects
Coagulation pin, the other end is electrically connected with the main frame of vein ablatograph by connecting line, facilitates medical care
Personnel's single-hand handling & coagulation pin carries out coagulation operation, above-knee great saphenous vein can not only be carried out intracavity
Melt, it is also possible to process and belong to the hemangioma propped up and in communicating branch.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the specific embodiment of the invention, below will be to tool
In the description of body embodiment, the required accompanying drawing used is briefly described.Under it should be evident that
Accompanying drawing during face describes is some embodiments of the present invention, for those of ordinary skill in the art
From the point of view of, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings
Accompanying drawing.
The structural representation of the vein ablation needle that Fig. 1 provides for the present invention.
Reference:
1-fixes seat；2-battery lead plate；3-coagulation pin；
4-connecting line；5-protects sheath；6-temperature probe；
7-returns blood device；8-irrigator；9-conduit；
10-switchs；11-power adjustments button.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is clearly and completely described, aobvious
So, described embodiment is a part of embodiment of the present invention rather than whole embodiments.
Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work
The every other embodiment obtained under premise, broadly falls into the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score,
Orientation or the position of the instruction such as "left", "right", " vertically ", " level ", " interior ", " outward " are closed
System, for based on orientation shown in the drawings or position relationship, is for only for ease of the description present invention and Jian
Change describe rather than instruction or the hint device of indication or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally,
Term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicate
Or hint relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited,
Term " is installed ", " being connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing,
Can also be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electricity
Connect；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two
The connection of element internal.For the ordinary skill in the art, can manage with concrete condition
Solve above-mentioned term concrete meaning in the present invention.
Present embodiments provide a kind of vein ablation needle, wherein: Fig. 1 for the present invention provide quiet
The structural representation of arteries and veins ablation needle.As it is shown in figure 1, the primary structure of vein ablation needle includes solid
Reservation 1, battery lead plate 2, coagulation pin 3 and connecting line 4.Specifically, the fixing peace of battery lead plate 2
Being contained in fixing seat 1, one end of coagulation pin 3 connects battery lead plate 2, and the other end is to fixing seat 1
Outside extend；One end of connecting line 4 connects battery lead plate 2, and the other end is outside fixing seat 1
Side extends, and is used for connecting vein ablatograph main frame.
Varicosis is common venous disease, refers to due to blood stasis, vein tube wall weakness
Etc. factor, the vein caused is tortuous, expansion.Operation is the basic side for the treatment of varicose veins of the lower extremity
Method, traditional surgical approaches is High ligation of great saphenous vein endarterectomy.Have also appeared printing opacity in recent years
The operations such as direct-view rotary-cut art, laser Closure, radio-frequency (RF) ablation Closure and chamber mirror communicating branch are controlled
Treatment method.But these method costs are big, relapse rate is higher.High frequency ablation art is the weight of this art formula
Want ingredient.Because of individual patients condition difference in art, only control high frequency by the experience of patient
Pin power, translational speed and skin temperature, weigh without objective indicator, is easily caused after changing patient
Skin burn or treatment be not thorough, is unfavorable for promoting on a large scale.Further, traditional vein melts
In instrument, the design to ablation needle is the most coarse, and existing ablation needle end is longer, and caliber is relatively thick,
It is suitable only for the intraluminal ablation of above-knee great saphenous vein, it is impossible to process branch at one's knees, and operation phase
Heavy, patient are spent higher, is unfavorable for promoting on a large scale.The vein ablation needle of the present embodiment,
Arranging battery lead plate 2 in fixing seat 1, battery lead plate 2 one end connects coagulation pin 3, and the other end leads to
Cross connecting line 4 to electrically connect with the main frame of vein ablatograph, facilitate medical personnel's single-hand handling & coagulation
Pin 3 carries out coagulation operation, above-knee great saphenous vein can not only be carried out intraluminal ablation, it is also possible to
Process and belong to the hemangioma propped up and in communicating branch.
In the alternative of the present embodiment, as it is shown in figure 1, further, vein ablation needle
It is additionally provided with protection sheath 5.Specifically, protection sheath 5 is socketed in the outside of coagulation pin 3, and solid
Dingan County is contained on fixing seat 1.In the present embodiment, protection sheath 5 first can improve coagulation pin 3
Fixed effect, keep coagulation pin 3 profile；Second prevents the face, top layer that coagulation pin 3 is too much
Long-pending contact patient skin, the 3rd beneficially hand-held grasping of medical personnel, avoids unnecessary contact,
4th makes the application point of coagulation pin 3 more concentrate, improve the efficiency of operation.Meanwhile, medical care
Personnel hold fixing seat 1 and can precisely operate coagulation pin 3.
In the alternative of the present embodiment, as it is shown in figure 1, further, vein ablation needle
Also include that temperature probe 6, temperature probe 6 are arranged in protection sheath 5, and electric with connecting line 4
Connect.In the present embodiment, temperature probe 6 is in order to measure constantly along with the propelling of coagulation pin 3
Skin temperature at coagulation blood vessel, and in time temperature information is sent to the master of vein ablatograph
Machine, when skin temperature is too high, host-initiated defence program, stop the power output of coagulation pin 3,
Protection patient skin is from burn.
In the alternative of the present embodiment, as it is shown in figure 1, further, coagulation pin 3
Be provided with the cavity of hollow, and being internally provided with of fixing seat 1 return blood device 7, return blood device 7 with
Cavity connects, and returns and arranges transparent window on the sidewall of blood device 7, it is possible to observe blood from coagulation
Pin 3 flows into and returns blood device 7.In the present embodiment, coagulation pin 3 is provided with the cavity of hollow,
When coagulation pin 3 correctly thrusts the blood vessel needing coagulation to melt, blood is owing to the pressure of blood vessel is from blood
Pipe flow, in through hole, utilizes connect with cavity to return blood device 7, it is possible to blood is returned in discovery in time, sharp
Grasp in medical personnel and puncture and the effect of coagulation.
In the alternative of the present embodiment, as it is shown in figure 1, further, vein ablation needle
Also include irrigator 8 and conduit 9.Specifically, irrigator 8 passes through conduit 9 and returns blood device 7
Connection；Irrigator 8 is used for containing cleaning liquid.In the present embodiment, at the end of coagulation,
The cleaning liquid in irrigator 8 is utilized to be rinsed returning blood device 7, it is simple to the most again to puncture
Coagulation or end coagulation Final finishing, packaging ablation needle.
In the alternative of the present embodiment, further, the material of coagulation pin 3 is that metal is fine
Dimension.Wherein, coagulation pin 3 can also use the metal materials such as silver, rustless steel.In this enforcement
In example, metallic fiber, compared with organic and inorganic fiber, has good conduction, heat conduction, leads
Magnetic, high temperature resistant, self lubricity and agglutinating property, and manufacture method is relatively simple, and cost price is just
Preferably.Frequent due to coagulation pin 3 in use variations in temperature again, with the metal such as silver, rustless steel
Material is compared, and the coagulation pin 3 of metallic fiber material is more durable and safety.
In the alternative of the present embodiment, as it is shown in figure 1, further, coagulation pin 3
A length of 10-15 centimetre.In the present embodiment, the coagulation pin 3 of 10-15 centimeter length is both full
The demand of foot operation, is unlikely to again to have impact on operation owing to coagulation pin 3 length is long.
In the alternative of the present embodiment, as it is shown in figure 1, further, vein ablation needle
Also include being arranged on the switch 10 on fixing seat 1 and power adjustments button 11.Wherein, switch
10 for being switched on or switched off the connection between battery lead plate 2 and vein ablatograph main frame, and power is adjusted
Joint button 11 can regulate the watt level of coagulation pin 3.In the present embodiment, vein melts
On and off switch on instrument main frame can control the power supply of coagulation operation, and is arranged on fixing seat 1
On switch 10, facilitate medical personnel operation coagulation during, start or stop easily
Coagulation is performed the operation；Power adjustments button 11 is for regulating the coagulation power needed for operation.
It is last it is noted that various embodiments above is only in order to illustrate technical scheme,
It is not intended to limit；Although the present invention being described in detail with reference to foregoing embodiments,
It will be understood by those within the art that: it still can be to described in foregoing embodiments
Technical scheme modify, or the most some or all of technical characteristic carried out equivalent replace
Change；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the present invention each
The scope of embodiment technical scheme.
Claims (8)
1. a vein ablation needle, it is characterised in that include fixing seat, battery lead plate, coagulation
Pin and connecting line；
Described battery lead plate is fixedly mounted in described fixing seat, and one end of described coagulation pin connects institute
Stating battery lead plate, the other end extends to the outside of described fixing seat, for melting affected part coagulation；
One end of described connecting line connects described battery lead plate, and the other end is to the outside of described fixing seat
Extend, be used for connecting vein ablatograph main frame.
Vein ablation needle the most according to claim 1, it is characterised in that also include protecting
Protect sheath；
Described protection sheath is fixed on described fixing seat, and is socketed in the outside of described coagulation pin.
Vein ablation needle the most according to claim 2, it is characterised in that also include temperature
Degree probe, in described temperature probe is built in described protection sheath and electrically connects with described connecting line,
For measuring the skin temperature in affected part.
Vein ablation needle the most according to claim 1, it is characterised in that described coagulation
Pin is provided with the cavity of hollow, and being internally provided with of described fixing seat returns blood device, described in return blood
Device connects with described cavity, it is possible to observes blood and returns blood device from described in the inflow of described coagulation pin.
Vein ablation needle the most according to claim 4, it is characterised in that also include punching
Washing device and conduit, described irrigator is connected with the described blood device that returns by described conduit；Described flushing
Device is used for containing cleaning liquid.
Vein ablation needle the most according to claim 1, it is characterised in that described coagulation
The material of pin is metallic fiber.
Vein ablation needle the most according to claim 6, it is characterised in that described coagulation
A length of 10-15 centimetre of pin.
8. according to the vein ablation needle described in any one of claim 1～7, it is characterised in that
Also including being arranged on the switch on described fixing seat and power adjustments button, described switch is used for connecing
On-off opens the connection between described battery lead plate and vein ablatograph main frame；Described power adjustments is pressed
Button can regulate the watt level of coagulation pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610543828.0A CN105943157B (en) | 2016-07-11 | 2016-07-11 | A kind of vein ablation needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610543828.0A CN105943157B (en) | 2016-07-11 | 2016-07-11 | A kind of vein ablation needle |
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| CN105943157A true CN105943157A (en) | 2016-09-21 |
| CN105943157B CN105943157B (en) | 2018-08-28 |
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| CN201610543828.0A Active CN105943157B (en) | 2016-07-11 | 2016-07-11 | A kind of vein ablation needle |
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| CN110537974A (en) * | 2019-10-15 | 2019-12-06 | 宜宾市第一人民医院 | Electric coagulation instrument for varicosity minimally invasive treatment |
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| CN108245245A (en) * | 2017-12-13 | 2018-07-06 | 武汉市海沁医疗科技有限公司 | Radio-frequency ablation electrode temperature control system |
| CN110537974A (en) * | 2019-10-15 | 2019-12-06 | 宜宾市第一人民医院 | Electric coagulation instrument for varicosity minimally invasive treatment |
| CN110537974B (en) * | 2019-10-15 | 2024-03-29 | 宜宾市第一人民医院 | Electric coagulation instrument for minimally invasive treatment of varicose veins |
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| CN105943157B (en) | 2018-08-28 |
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