CN211023085U - Microwave ablation needle - Google Patents
Microwave ablation needle Download PDFInfo
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- CN211023085U CN211023085U CN201921345700.9U CN201921345700U CN211023085U CN 211023085 U CN211023085 U CN 211023085U CN 201921345700 U CN201921345700 U CN 201921345700U CN 211023085 U CN211023085 U CN 211023085U
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Abstract
The utility model relates to a microwave ablation needle, which comprises a needle head, a needle rod, a handle, a coaxial cable, an attraction channel, a first heat dissipation channel and a second heat dissipation channel, wherein two ends of the needle rod are respectively connected with the needle head and the handle, the needle rod and the handle are respectively provided with an internal cavity which are mutually communicated, the coaxial cable, the attraction channel and the first heat dissipation channel are respectively arranged in the internal cavity, and the second heat dissipation channel is communicated with the internal cavity; one end of the coaxial cable is connected with the needle head, and the other end of the coaxial cable is used for connecting a microwave power source; the needle head is provided with a suction hole for extracting sac liquid, and the suction hole is communicated with the suction channel; the utility model provides a microwave ablation needle, simple structure, compactness not only have the suction function, and the cyst liquid in the extraction cystic tumor tissue that can be convenient is favorable to the cystic tumor tissue to thoroughly melt, and the radiating effect is good moreover, and the heat dissipation form is various, can select in a flexible way to adopt forced air cooling heat dissipation or water-cooling heat dissipation, and application scope is wider.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to microwave ablation needle.
Background
The microwave ablation therapy is a therapy method which has the advantages of high efficiency, rapidness, uniform heating, thorough thermal coagulation, convenient use and safety for tumor tissues, and has been widely applied to clinic for many years, for example, the microwave ablation therapy becomes one of important therapeutic means for treating soft tissues such as liver cancer, kidney cancer, thyroid gland and the like; specifically, microwave ablation is to radiate microwaves by using an antenna, wherein the microwaves enable ions and polar water molecules in tissues to rotate, vibrate and rub with each other to generate a heat effect, so that a treatment area quickly reaches a high temperature, and the tissues are solidified, dehydrated and necrotized, thereby achieving the purpose of treatment.
The microwave ablation needle and the microwave power source are respectively necessary devices for a microwave ablation treatment process (for example, a microwave ablation needle and a microwave ablation treatment apparatus thereof disclosed in chinese patent CN 101711705A), wherein the microwave ablation needle generally includes a needle head for radiating microwaves and a microwave transmission part for transmitting the microwaves, the microwave transmission part generally employs a coaxial cable, and the needle head is connected with the microwave power source through the coaxial cable, so that the microwaves generated by the microwave power source are transmitted to the needle head through the microwave transmission part and radiated out through the needle head, thereby achieving a treatment purpose.
However, the existing microwave ablation needle usually has some disadvantages, and 1, the existing microwave ablation needle has poor treatment effect on tumor tissues containing cyst fluid (such as cystic tumor, cyst solid mixed tumor and the like), is difficult to completely ablate the tumor tissues, and cannot achieve the effect of radical treatment; 2. when the existing microwave ablation needle works actually, the coaxial cable has large heat productivity, and the existing microwave ablation needle has a complex heat dissipation structure and a poor heat dissipation effect.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides a microwave ablation needle with simple and compact structure, good heat dissipation effect and pumping function.
The utility model adopts the technical proposal that:
a microwave ablation needle comprises a needle head, a needle rod, a handle, a coaxial cable, an attraction channel, a first heat dissipation channel and a second heat dissipation channel, wherein two ends of the needle rod are respectively connected with the needle head and the handle; one end of the coaxial cable is connected with the needle head, and the other end of the coaxial cable is used for connecting a microwave power source; the needle head is provided with a suction hole for extracting the sac liquid, and the suction hole is communicated with the suction channel. In the scheme, the suction hole for extracting the sac liquid is formed in the needle head, so that in the operation process, after the microwave ablation needle is punctured percutaneously and enters the tumor tissue, if the tumor tissue is a cystic tumor or a cyst-solid mixed tumor, a user can firstly suck the sac liquid in the tumor through the suction hole and the suction channel and then perform microwave ablation, so that the wall of the sac cavity can be effectively damaged, the tumor tissue can be thoroughly ablated, and the effect of radical treatment is achieved; in addition, in this scheme, coaxial cable sets up in the inside cavity of needle bar and handle, on the one hand, can effectively avoid coaxial cable and needle bar and handle direct contact, leads to on the coaxial cable heat direct transfer to the needle bar and handle for the temperature of needle bar and handle risees, and on the other hand is favorable to dispelling the heat to coaxial cable, through the cooperation of first heat dissipation channel with second heat dissipation channel, can form endless heat dissipation return circuit in the inside cavity, like air-cooled, water-cooling etc. thereby can effectively accelerate coaxial cable heat dissipation, effectively prevent that coaxial cable is overheated.
Furthermore, the microwave oven further comprises a first connector, wherein the first connector is arranged on the handle and is connected with the coaxial cable, and the first connector is used for connecting a microwave power source.
Further, the suction device also comprises a suction connector, wherein the suction connector is connected with the handle through a pipeline and communicated with the suction channel, and the suction connector is used for connecting negative pressure equipment. Through setting up the suction joint, the intercommunication of realization suction channel and negative pressure equipment that can be convenient to can be convenient utilize negative pressure equipment to produce the negative pressure, so that produce continuous suction in suction hole department, thereby effectively absorb the cyst fluid in the tumour.
In a further scheme, the first heat dissipation channel and/or the second heat dissipation channel is/are provided with a second joint, and the second joint is used for connecting a circulating water pump in negative pressure equipment or air blowing equipment or a water cooling circulating device. In this scheme promptly, the heat dissipation form of microwave ablation needle is various, can cooperate with multiple heat abstractor, and the user can select in a flexible way to adopt air-cooled heat dissipation or water-cooled heat dissipation, and application scope is wider.
Further, still include insulating part, insulating part sets up between syringe needle and needle bar for insulating. The microwave can be radiated out through the needle head in a concentrated manner, so that the radiation range is more regular and concentrated, and the precise ablation is realized.
Preferably, the needle shaft is of tubular construction. Namely, the needle rod is not of a solid structure, so that the internal cavity can be prevented from being processed in the needle rod, and the cost is reduced.
Further, the inner wall surface of the needle rod is provided with a heat insulation layer. Because the needle bar adopts metal material to make usually, like stainless steel etc. the heat conductivity is good, the inside heat of needle bar radiates away through the needle bar easily, arouses the patient easily and discomforts, especially after the needle bar inserts the patient internally, closely contacts with patient's skin, organ etc. through setting up the insulating layer, can effectively avoid the inside heat of needle bar to radiate outside the needle bar for the needle bar can keep the normal atmospheric temperature, is favorable to normal use.
Preferably, the needle head comprises a needle body and a needle point arranged at one end of the needle body, the suction hole is arranged on the needle body, and the needle point is used for puncture.
Preferably, the tip is conical or is defined by one or more sections.
In one scheme, the needle comprises a suction hole which is coaxial with the needle body.
Furthermore, a suction cavity is arranged in the needle body, and the suction hole and the suction channel are respectively communicated with the suction cavity.
In one scheme, the needle comprises a plurality of suction holes which are uniformly distributed along the circumferential direction of the needle body.
Further, the outer surface of the needle head is provided with a coating for preventing adhesion, and the coating is ceramic. The ceramic coating is used for preventing the needle head from being adhered in the puncturing process, and meanwhile, microwave energy can smoothly penetrate through the ceramic coating to achieve the purpose of microwave ablation.
Further, the outer surface of the needle rod is provided with a coating for reducing puncture resistance, and the coating is Teflon. The Teflon coating is arranged on the outer surface of the needle rod, so that the lubricating effect can be achieved, the resistance in the puncture process is effectively reduced, and the puncture process is smoother.
Compared with the prior art, the utility model provides a pair of microwave ablation needle has following beneficial effect:
1. the microwave ablation needle has a simple and compact structure, has a suction function, can conveniently extract the cyst fluid in the tumor tissue, is favorable for thoroughly ablating the tumor tissue, effectively solves the defects in the prior art, and is particularly suitable for performing microwave ablation treatment on the cystic tumor and the cyst solid mixed tumor.
2. The microwave ablation needle has good heat dissipation effect and various heat dissipation forms, can be matched with various heat dissipation devices in the prior art, can be flexibly selected by a user to adopt air cooling heat dissipation or water cooling heat dissipation, and has wider application range.
3. The microwave ablation needle can be used for microwave ablation treatment, and can be used for extracting the cystic fluid in the cystic tumor tissue in the microwave ablation treatment process, and the extracted cystic fluid can be used for cytological detection to judge the property of the cystic tumor, so that the phenomenon that an extra puncture outfit is used for independently extracting the cystic fluid is avoided, the microwave ablation needle is convenient to operate, surgical instruments can be saved, and the cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a microwave ablation needle provided in embodiment 1 of the present invention.
Fig. 2 is a partial cross-sectional view of fig. 1.
Fig. 3 is a partial cross-sectional view of fig. 1.
Fig. 4 is a schematic structural view of a needle head of a microwave ablation needle provided in embodiment 1 of the present invention.
Fig. 5 is a schematic structural view of another needle head of the microwave ablation needle provided in embodiment 1 of the present invention.
Fig. 6 is a schematic structural view of a needle head of a microwave ablation needle according to embodiment 1 of the present invention.
Fig. 7 is a cross-sectional view of fig. 4.
Description of the drawings
A needle 101, a needle tip 102, a needle body 103, a suction hole 104, a suction cavity 105, a ceramic coating 106,
a needle shaft 201, a suction channel 202, a coaxial cable 203, a teflon coating 204, an internal cavity 205,
a handle 301, a suction fitting 302, a tube 303, a first fitting 304,
the insulating member 401 is formed of a metal,
a first heat dissipation channel 501, a second heat dissipation channel 502, and a second joint 503.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1, fig. 2 and fig. 3, the present embodiment provides a microwave ablation needle, including a needle 101, a needle shaft 201, a handle 301, a coaxial cable 203, a suction channel 202, a first heat dissipation channel 501 and a second heat dissipation channel 502, where two ends of the needle shaft 201 are respectively connected to the needle 101 and the handle 301, the handle 301 is used for holding, and the shape of the handle 301 may be determined according to actual requirements, such as a gun-shaped structure, a cylindrical structure, etc.;
the needle rod 201 and the handle 301 are respectively provided with an internal cavity 205 which are communicated with each other, the coaxial cable 203, the suction channel 202 and the first heat dissipation channel 501 are respectively arranged in the internal cavity 205, and the second heat dissipation channel 502 is communicated with the internal cavity 205; one end of the coaxial cable 203 is connected with the needle 101, and the other end is used for connecting a microwave power source; the needle 101 is provided with a suction hole 104 for extracting the sac liquid, and the suction hole 104 communicates with the suction passage 202. In the scheme, the needle head 101 is provided with the suction hole 104 for extracting the sac liquid, and in the operation process, after the microwave ablation needle is punctured percutaneously and enters the tumor tissue, if the tumor tissue is a cystic tumor or a cyst-solid mixed tumor, a user can firstly suck the sac liquid in the tumor through the suction hole 104 and the suction channel 202 and then perform microwave ablation, so that the wall of the sac cavity can be effectively damaged, the tumor tissue can be thoroughly ablated, and the effect of radical treatment is achieved; in addition, in this scheme, the coaxial cable 203 is disposed in the internal cavity 205 of the needle bar 201 and the handle 301, on one hand, the coaxial cable 203 can be effectively prevented from being in direct contact with the needle bar 201 and the handle 301, so that heat on the coaxial cable 203 is directly transferred to the needle bar 201 and the handle 301, and the temperature of the needle bar 201 and the temperature of the handle 301 are increased, on the other hand, heat dissipation of the coaxial cable 203 is facilitated, and through the cooperation of the first heat dissipation channel 501 and the second heat dissipation channel 502, a circulating heat dissipation loop, such as air cooling, water cooling and the like, can be formed in the internal cavity 205, so that heat dissipation of the coaxial cable 203 can be effectively accelerated, and overheating of the coaxial cable 203 is.
It is understood that the suction channel 202 is a conduit 303 or a channel provided in the needle shaft 201, i.e. the suction channel 202 may be a conduit 303, such as a hose or the like, and the suction channel 202 may also be a channel machined in the needle shaft 201.
As shown in fig. 1, 2 and 3, in a further aspect, the needle further comprises an insulating member 401, and the insulating member 401 is disposed between the needle 101 and the needle shaft 201 for insulating. The insulating member 401 may be made of insulating material in the prior art, and will not be described herein.
In a further embodiment, as shown in fig. 1 or fig. 3, the microwave oven further comprises a first connector 304, the first connector 304 is disposed on the handle 301 and is connected to the coaxial cable 203, and the first connector 304 is used for connecting to a microwave power source. The first connector 304 may be a conventional power connector in the prior art, and will not be described herein.
As shown in fig. 1 or fig. 3, the microwave ablation needle further includes a suction connector 302, the suction connector 302 is connected to the handle 301 through a pipe 303 (such as a hose or the like) and is communicated with the suction channel 202, and the suction connector 302 is used for connecting a negative pressure device. By arranging the suction connector 302, the suction channel 202 can be conveniently communicated with the negative pressure equipment, so that negative pressure can be conveniently generated by the negative pressure equipment, continuous suction can be generated in the suction holes 104, and the cyst fluid in the tumor can be effectively sucked. It is understood that the negative pressure device may be a negative pressure device commonly used in the art, such as a negative pressure pump, a negative pressure hollow needle, etc., and the suction connector 302 may be a connector commonly used in the art, which will not be described herein.
In a preferred embodiment, the needle shaft 201 is a tubular structure; that is, the needle shaft 201 is not a solid structure, so that machining the internal cavity 205 in the needle shaft 201 can be avoided, which is beneficial to reducing the cost.
In a further embodiment, the inner wall surface of the needle bar 201 is provided with a heat insulation layer. Because needle bar 201 usually adopts metal material to make, like stainless steel etc. the heat conductivity is good, the inside heat of needle bar 201 radiates away through needle bar 201 easily, arouses the patient uncomfortable easily, especially after needle bar 201 inserts the patient in vivo, closely contacts with patient's skin, organ etc. through setting up the insulating layer, can effectively avoid the inside heat of needle bar 201 to radiate outside needle bar 201 for needle bar 201 can keep the normal atmospheric temperature, is favorable to normal use. It is understood that the thermal insulation layer can be made of thermal insulation materials commonly used in the art, such as fiberglass, asbestos, rock wool, silicate, etc., which are not illustrated herein.
As shown in fig. 1 or fig. 2, in the present embodiment, the needle 101 includes a needle body 103 and a needle tip 102 disposed at one end of the needle body 103, the suction hole 104 is disposed on the needle body 103, and the needle tip 102 is used for puncturing, so as to facilitate the microwave ablation needle to smoothly penetrate into tumor tissue, and in particular, to more effectively destroy the wall of the capsular bag.
The needle tip 102 has various structures, only the sharp point of the needle 101 is needed, so the shape and structure of the needle tip 102 are not limited in the embodiment, for example, as shown in fig. 1, 2 or 5, in the preferred embodiment, the needle tip 102 is conical; the needle tip 102 may also be surrounded by one or more sections, for example, as shown in fig. 4 and 7, the needle tip 102 is formed by one section, in this case, only one suction hole 104 may be formed on the needle 101, and the suction hole 104 is coaxial with the needle body 103, as shown in fig. 7, which is more convenient for sucking cyst fluid.
As another example, as shown in FIG. 6, the tip 102 may be defined by three facets, thereby making the tip 102 more sharp, which is not illustrated.
In a further aspect, a suction cavity 105 is disposed in the needle body 103, and the suction hole 104 and the suction channel 202 are respectively communicated with the suction cavity 105.
In a preferred embodiment, the needle 101 includes a plurality of the suction holes 104, and the suction holes 104 are respectively and uniformly distributed along the circumferential direction of the needle body 103, for example, as shown in fig. 1 or fig. 5, the needle 101 includes four suction holes 104, and the suction holes 104 are respectively and uniformly distributed along the circumferential direction of the needle body 103 and are respectively communicated with the suction cavity 105.
In a further version, the outer surface of the needle 101 is provided with a coating for preventing adhesion, which may preferably be ceramic, or a coating with similar effect. The ceramic coating 106 is used for preventing the needle 101 from being adhered in the puncturing process, and meanwhile, microwave energy can smoothly penetrate through the ceramic coating 106 to achieve the purpose of microwave ablation.
In a further aspect, the outer surface of the needle shaft 201 is provided with a coating for reducing the puncture resistance, which may be teflon, or a coating with a similar effect. The Teflon coating 204 is arranged on the outer surface of the needle rod 201, so that the lubricating effect can be achieved, the resistance in the puncture process is effectively reduced, and the puncture process is smoother.
In order to adapt to different heat dissipation manners, in the scheme of the present invention, the first heat dissipation channel 501 and/or the second heat dissipation channel 502 are/is provided with a second joint 503, and the second joint 503 is used for connecting a circulating water pump in a negative pressure device, a blower device, or a water cooling circulation device (or system); it is understood that the second joint 503 may be a joint commonly used in the art, and will not be described herein.
By way of example, in the present embodiment, the first heat dissipation channel 501 and the second heat dissipation channel 502 are respectively connected to two second joints 503 through the pipes 303; in clinic, if air cooling is adopted for heat dissipation, at this time, only one of the second connectors 503 needs to be connected with a negative pressure device or a blower device,
as an embodiment, as shown in fig. 1, 2 or 3, one end of a first heat dissipation channel 501 is connected to the handle 301, and the other end extends to a position close to the insulating member 401 (in this case, the first heat dissipation channel 501 may be a pipe 303), a second heat dissipation channel 502 is disposed on the handle 301 at a position far from the insulating member 401 (in this case, the second heat dissipation channel 502 may be a pipe 303 or a through hole opened in the handle 301), the first heat dissipation channel 501 and the second heat dissipation channel 502 are respectively connected to two second connectors 503 through two pipes 303, and the second connectors 503 corresponding to the first heat dissipation channel 501 are connected to a negative pressure device or a blowing device in the prior art, when a negative pressure device is used, external cold air (normal temperature air) enters the internal cavity 205 of the microwave ablation needle from the second heat dissipation channel 502 under the action of negative pressure, and leaves the internal cavity 205 of the microwave ablation needle through the first heat dissipation channel 501, and in the circulation process, the air is used for continuously taking away the heat inside the microwave ablation needle, so that the purpose of air cooling and heat dissipation is achieved; similarly, when the blower device is adopted, external cold air (normal temperature air) enters the internal cavity 205 of the microwave ablation needle from the first heat dissipation channel 501 under the action of the blower device, and leaves the internal cavity 205 of the microwave ablation needle through the second heat dissipation channel 502, and in the circulation process, the blown air is used for continuously taking away heat inside the microwave ablation needle, so that the purpose of air cooling and heat dissipation is achieved.
As an embodiment, as shown in fig. 1, 2, or 3, one end of a first heat dissipation channel 501 is connected to the handle 301, and the other end of the first heat dissipation channel 501 extends to a position close to the insulating member 401 (in this case, the first heat dissipation channel 501 may be a pipe 303), a second heat dissipation channel 502 is disposed on the handle 301 at a position far from the insulating member 401 (in this case, the second heat dissipation channel 502 may be a pipe 303 or a through hole opened in the handle 301), the first heat dissipation channel 501 and the second heat dissipation channel 502 are respectively connected to two second joints 503 through two pipes 303, and the two second joints 503 are respectively communicated with a circulating water pump in a water-cooling circulation device commonly used in the prior art and constitute a closed circulation loop, when heat dissipation is performed, the cooling liquid is driven by the circulating water pump to sequentially pass through the first heat dissipation channel 501, the internal cavity 205, and the internal cavity 205, The second heat dissipation channel 502 circularly flows, and continuously takes away heat inside the microwave ablation needle in the flowing process, thereby achieving the purpose of water cooling heat dissipation.
In a preferred scheme, the water cooling circulation system can be integrated with a microwave power source, so that the structure of the whole microwave ablation treatment system is simplified and the use is more convenient.
It is understood that the outlet positions of the first heat dissipation channel 501 and the second heat dissipation channel 502 may be determined according to the actual shape of the internal cavity 205, and are not described herein again.
It is understood that in this embodiment, a microwave antenna may be disposed in the needle 101 and connected to the coaxial cable 203 for radiating microwave, which will not be described herein.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.
Claims (10)
1. A microwave ablation needle is characterized by comprising a needle head, a needle rod, a handle, a coaxial cable, an attraction channel, a first heat dissipation channel and a second heat dissipation channel, wherein two ends of the needle rod are respectively connected with the needle head and the handle; one end of the coaxial cable is connected with the needle head, and the other end of the coaxial cable is used for connecting a microwave power source; the needle head is provided with a suction hole for extracting the sac liquid, and the suction hole is communicated with the suction channel.
2. A microwave ablation needle according to claim 1, wherein the needle shaft is of tubular construction and the inner wall surface of the needle shaft is provided with a thermally insulating layer.
3. A microwave ablation needle according to claim 1, further comprising an insulating member disposed between the needle head and the needle shaft for insulating.
4. A microwave ablation needle according to claim 1, further comprising a first connector and a suction connector, wherein the first connector is arranged on the handle and connected with the coaxial cable, and the first connector is used for connecting a microwave power source; the suction connector is connected with the handle through a pipeline and communicated with the suction channel, and the suction connector is used for connecting negative pressure equipment.
5. A microwave ablation needle according to claim 1, wherein the first heat dissipation channel and/or the second heat dissipation channel is/are provided with a second connector, and the second connector is used for connecting a circulating water pump in a negative pressure device, a blowing device or a water cooling circulating device.
6. A microwave ablation needle according to any one of claims 1 to 5, wherein the needle head comprises a needle body and a needle point arranged at one end of the needle body, the suction hole is arranged in the needle body, and the needle point is used for puncture.
7. A microwave ablation needle according to claim 6, wherein the tip is conical or is defined by one or more cut surfaces.
8. A microwave ablation needle according to claim 6, wherein a suction cavity is provided in the needle body, and the suction hole and the suction channel are respectively communicated with the suction cavity.
9. A microwave ablation needle according to claim 6, comprising a suction hole coaxial with the needle body, or a plurality of suction holes uniformly distributed along the circumferential direction of the needle body.
10. A microwave ablation needle according to claim 6, wherein the outer surface of the needle head is provided with a coating for preventing adhesion, the coating being ceramic; and/or the outer surface of the needle rod is provided with a coating for reducing puncture resistance, and the coating is Teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921345700.9U CN211023085U (en) | 2019-08-19 | 2019-08-19 | Microwave ablation needle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921345700.9U CN211023085U (en) | 2019-08-19 | 2019-08-19 | Microwave ablation needle |
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| CN211023085U true CN211023085U (en) | 2020-07-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113786517A (en) * | 2021-09-27 | 2021-12-14 | 东劢医疗科技(苏州)有限公司 | Biocompatible coating composition for microwave ablation needle, preparation method and application |
| WO2023123619A1 (en) * | 2021-12-31 | 2023-07-06 | 南京臻泰微波科技有限公司 | Combined low-impedance microwave ablation transmission assembly and impedance matching method therefor |
-
2019
- 2019-08-19 CN CN201921345700.9U patent/CN211023085U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113786517A (en) * | 2021-09-27 | 2021-12-14 | 东劢医疗科技(苏州)有限公司 | Biocompatible coating composition for microwave ablation needle, preparation method and application |
| WO2023123619A1 (en) * | 2021-12-31 | 2023-07-06 | 南京臻泰微波科技有限公司 | Combined low-impedance microwave ablation transmission assembly and impedance matching method therefor |
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