CN211243690U - Microwave ablation needle with suction function - Google Patents
Microwave ablation needle with suction function Download PDFInfo
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- CN211243690U CN211243690U CN201921344846.1U CN201921344846U CN211243690U CN 211243690 U CN211243690 U CN 211243690U CN 201921344846 U CN201921344846 U CN 201921344846U CN 211243690 U CN211243690 U CN 211243690U
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Abstract
The utility model relates to a microwave ablation needle with suction function, which comprises a needle head and a needle rod, wherein the needle head is provided with a suction hole for extracting sac liquid, a suction channel is arranged in the needle rod, and the suction channel is communicated with the suction hole; the utility model provides a microwave ablation needle, compact structure, the bag liquid in the extraction cystic tumor tissue that can be convenient, the bag liquid of extraction can be used for cytology to detect, judges the nature of cystic tumor, not only can effectively destroy the bag chamber wall, is favorable to the cystic tumor tissue to thoroughly melt moreover to effectively solve not enough among the prior art, be particularly useful for carrying out the microwave ablation treatment to the mixed tumour of cystic tumor and bag reality.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to microwave ablation needle with suction function.
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 point for radiating microwaves and a microwave transmission part for transmitting the microwaves, the microwave transmission part generally employs a coaxial cable, and the needle point is connected with the microwave power source through the microwave transmission part, so that the microwaves generated by the microwave power source are transmitted to the needle point through the microwave transmission part and radiated out through the needle point, thereby achieving a treatment purpose.
However, the existing microwave ablation needle is not generally suitable for cystic tumors (such as breast cysts, ovarian cysts, ganglion cysts, and the like) and cystic mixed tumors, and for the cystic tumors and the cystic mixed tumors, the existing microwave ablation needle cannot effectively damage the wall of the cystic cavity, and simultaneously is difficult to completely ablate the cystic tumors.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to improve the not enough that exists among the prior art, provide a compact structure, can extract the microwave ablation needle of cyst liquid, be particularly useful for cystic tumour and the real mixed tumour of bag.
The utility model adopts the technical proposal that:
a microwave ablation needle with a suction function comprises a needle head and a needle rod, wherein the needle head is provided with a suction hole for extracting sac liquid, a suction channel is arranged in the needle rod, and the suction channel is communicated with the suction hole. 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 the extracted sac liquid can be used for cytological detection to judge the property of the cystic tumor, so that the phenomenon that an additional puncture outfit is used for extracting the sac liquid independently is avoided, the operation is convenient, surgical instruments can be saved, and the cost is reduced; then, microwave ablation is carried out, so that the wall of the cyst cavity can be effectively damaged, and tumor tissues can be thoroughly ablated, thereby effectively solving the defects in the prior art.
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, still include the handle, the needle bar is fixed in the handle, the handle is used for gripping.
Preferably, the suction channel is a pipeline or a cavity channel arranged in the needle rod.
Preferably, the suction device further comprises a suction connector, the suction connector is connected with the handle through a pipeline and communicated with the suction channel, and the suction connector is used for being connected with negative pressure equipment. Through setting up the suction joint, the realization that can be convenient attracts the intercommunication of passageway and negative pressure equipment to the utilization negative pressure equipment that can be convenient produces the negative pressure, so that attract the hole and produce lasting suction, thereby effectively absorb the cyst fluid in the tumour.
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.
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.
Furthermore, the microwave oven further comprises a coaxial cable and an energy source connector, wherein the energy source connector is arranged in the handle, the coaxial cable is arranged in the needle rod and the handle, two ends of the coaxial cable are respectively connected with the needle head and the energy source connector, and the energy source connector is used for connecting a microwave power source.
In a further scheme, the needle bar or the needle bar and the handle are internally provided with a cooling cavity, the coaxial cable is arranged in the cooling cavity, and the cooling cavity is also internally provided with a water inlet channel and a water outlet channel.
Compared with the prior art, the utility model provides a pair of microwave ablation needle with suction function has following beneficial effect:
1. the microwave ablation needle has a compact structure and a suction function, can conveniently extract the cyst fluid, can effectively destroy the cyst wall, is favorable for thorough ablation of tumor tissues, effectively solves the defects in the prior art, and is particularly suitable for microwave ablation treatment of cystic tumors and cyst solid mixed tumors.
2. The cyst fluid extracted by the microwave ablation needle can be used for cytological detection to judge the property of the cystic tumor, so that the additional puncture outfit is avoided from being reused to extract the cyst fluid independently, the operation is convenient, 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,
a handle 301, a suction fitting 302, a conduit 303, an energy source fitting 304,
an insulating member 401.
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, 2 and 3, the present embodiment provides a microwave ablation needle with a suction function, including a needle 101 and a needle shaft 201, wherein the needle 101 is provided with a suction hole 104 for extracting a sac fluid, the needle shaft 201 is provided with a suction channel 202, and the suction channel 202 is communicated with the suction hole 104. In the scheme, the suction hole 104 for extracting the sac liquid is arranged on the needle head 101, in the operation process, when the microwave ablation needle is used for percutaneous puncture, after the microwave ablation needle enters tumor tissue, the suction hole 104 is just inserted into the tumor tissue, if the tumor tissue is cystic tumor or cystic mixed tumor, a user can firstly suck the sac liquid in the cystic tumor through the suction hole 104 and the suction channel 202, the extracted sac liquid can be used for cytological detection, the property of the cystic tumor is judged, and then microwave ablation is carried out, so that the wall of the sac cavity can be effectively damaged, the tumor tissue can be thoroughly ablated, and the defects in the prior art can be effectively overcome.
In a further scheme, as shown in fig. 1, the microwave ablation needle further comprises a handle 301, the needle rod 201 is fixed to the handle 301, and the handle 301 is used for holding, so that clinical operation is facilitated.
In a preferred embodiment, the suction channel 202 is a tube 303 or a channel disposed in the needle shaft 201, i.e., the suction channel 202 may be a tube 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 and 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 suction connector 302 may be a conventional connector in the art, and will not be described in detail 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 a further embodiment, as shown in fig. 1, 2 or 3, 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 insulation. The insulating member 401 may be made of insulating material in the prior art, and will not be described herein.
As shown in fig. 1, fig. 2 or fig. 3, in a more sophisticated scheme, the microwave ablation needle further includes a coaxial cable 203 and an energy source connector 304, the energy source connector 304 is disposed on the handle 301, the coaxial cable 203 is disposed inside the needle shaft 201 and the handle 301, two ends of the coaxial cable 203 are respectively connected with the needle head 101 and the energy source connector 304, and the energy source connector 304 is used for connecting a microwave power source.
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 (8)
1. A microwave ablation needle with a suction function is characterized by comprising a needle head and a needle rod, wherein the needle head is provided with a suction hole for extracting sac liquid, a suction channel is arranged in the needle rod, and the suction channel is communicated with the suction hole;
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;
the needle tip is conical or is enclosed by one or more sections.
2. The microwave ablation needle with the suction function according to claim 1, 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.
3. The microwave ablation needle with the suction function according to claim 1, comprising a suction hole which is coaxial with the needle body, or comprising a plurality of suction holes which are uniformly distributed along the circumferential direction of the needle body.
4. A microwave ablation needle with suction function according to any one of claims 1 to 3, further comprising a handle to which the needle shaft is fixed, the handle being for holding.
5. A microwave ablation needle with suction function according to claim 4, further comprising a suction connector connected with the handle through a pipe and communicated with the suction channel, wherein the suction connector is used for connecting a negative pressure device.
6. A microwave ablation needle with suction function according to claim 4, characterized in that 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.
7. The microwave ablation needle with aspiration function of claim 4, further comprising an insulating member disposed between the needle head and the needle shaft for insulation.
8. The microwave ablation needle with suction function according to claim 4, further comprising a coaxial cable and an energy source connector, wherein the energy source connector is arranged on the handle, the coaxial cable is arranged inside the needle rod and the handle, two ends of the coaxial cable are respectively connected with the needle head and the energy source connector, and the energy source connector is used for connecting a microwave power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921344846.1U CN211243690U (en) | 2019-08-19 | 2019-08-19 | Microwave ablation needle with suction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921344846.1U CN211243690U (en) | 2019-08-19 | 2019-08-19 | Microwave ablation needle with suction function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211243690U true CN211243690U (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921344846.1U Active CN211243690U (en) | 2019-08-19 | 2019-08-19 | Microwave ablation needle with suction function |
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|---|---|
| CN (1) | CN211243690U (en) |
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2019
- 2019-08-19 CN CN201921344846.1U patent/CN211243690U/en active Active
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