CN204600679U - A kind of microwave ablation antenna blocking ablation for cancer embolus - Google Patents

Abstract

The utility model relates to a microwave ablation antenna used for the ablation treatment of tumor thrombus obstruction, and belongs to the technical field of microwave ablation. The antenna includes a coaxial cable, a transmitting head fixedly connected to one end of the coaxial cable and a handle set on the other end of the coaxial cable; it is characterized in that: the end of the coaxial cable connected to the transmitting head removes 12mm of the outer skin and 2mm of the outer conductor layer , and set the copper tube on the remaining outer conductor layer; the transmitting head and the inner conductor are short-circuited; one end of the coaxial cable is connected to the other end of the coaxial RF connector. The utility model uses microwave energy to ablate and destroy the tumor tissue that blocks blood vessels or bile ducts and pancreatic ducts through the antenna radiator formed by the emitter head, window and copper sleeve, and breaks through the embolism, thereby prolonging the life of the patient and improving the quality of life. There is a feasible safe and effective treatment method for the treatment of advanced tumor thrombus, which is of great clinical significance.

Description

A microwave ablation antenna for tumor thrombus obstruction ablation treatment

technical field

The utility model relates to a microwave ablation antenna used for the ablation treatment of tumor thrombus obstruction, and belongs to the technical field of microwave ablation.

Background technique

With the advancement of modern technology and oncology, domestic microwave tumor ablation technology has made breakthroughs in the past ten years. Microwave tumor ablation is to use microwave energy to act on tissues to produce thermal effects. Within a few minutes to tens of minutes, the central temperature of the thermal field can reach above 100°C. Purpose of ablation therapy. Microwave tumor ablation is to insert a microwave ablation needle into the lesion of human tissue, and the front end continuously emits microwave energy to perform the operation. Because of its high efficiency, small window, and controllable depth and range of effect on the tissue, it is suitable for Ablation of solid tumors throughout the body.

Existing ablation techniques, including microwave ablation, face tumor thrombi that have invaded blood vessels, bile ducts, and pancreatic ducts. Poor, clinically urgently need to solve this problem.

Contents of the invention

The technical problem to be solved by the utility model is: to overcome the disadvantages of the above-mentioned technologies, and provide a microwave ablation antenna which can be used for the ablation treatment of tumor thrombus obstruction.

In order to solve the above-mentioned technical problems, the technical solution proposed by the utility model is: a microwave ablation antenna for the ablation treatment of tumor embolus obstruction, including a coaxial cable and a transmitting head fixedly connected to one end of the coaxial cable; One end of the axial cable connected to the transmitter head removes the outer skin of 12mm and the outer conductor layer of 2mm, and sets a copper tube on the remaining outer conductor layer; the transmitter head is short-circuited with the inner conductor; one end of the coaxial cable The other end is connected to a coaxial RF connector.

A further improvement of the above solution is that: the top of the emitting head is hemispherical.

A further improvement of the above solution is that: the coaxial cable is a semi-flexible cable with an outer diameter of 1.3 mm.

A further improvement of the above solution is that: the diameter of the emitting head is 1.3 mm.

The microwave ablation antenna provided by the utility model for the ablation treatment of tumor embolus obstruction uses microwave energy to ablate and destroy the tumor tissue blocking blood vessels or bile ducts and pancreatic ducts through the antenna radiator formed by the emitter, window and copper sleeve, and open up Embolism can prolong the life of patients and improve the quality of life, so that the treatment of advanced tumor thrombus has a feasible safe and effective treatment method, which is of great clinical significance.

Description of drawings

Fig. 1 is a schematic structural view of a preferred embodiment of the present invention.

The numbers in the figure are as follows: 2-dielectric layer, 3-inner conductor, 4-radiating head, 5-coaxial RF connector, 6-handle, 7-copper pipe.

Detailed ways

Example

The microwave ablation antenna used in the ablation treatment of tumor embolus obstruction in this embodiment is shown in Figure 1, including a coaxial cable, a transmitter 4 fixedly connected to one end of the coaxial cable, and a handle 6 set on the other end of the coaxial cable; One end of the axial cable connected to the transmitter head 1 removes the outer skin of 12 mm and the outer conductor layer of 2 mm, and sets the copper tube 7 on the remaining outer conductor layer; the transmitter head 1 and the inner conductor 3 are short-circuited; one end of the coaxial cable is connected to the other end There are coaxial RF connectors 5 .

The top of the emitter 4 is hemispherical with a diameter of 1.3 mm. The coaxial cable is a semi-flexible cable with an outer diameter of 1.3mm.

The antenna provided in this embodiment can use the special structure of its front end (transmitter head 4, window and copper tube 7) to get through the tumor thrombus obstruction that the traditional ablation needles cannot get through at present, so that the treatment of advanced cancer thrombus has a feasible, safe and effective treatment method.

The utility model is not limited to the specific technical solutions described in the above embodiments, except for the above embodiments, the utility model can also have other implementations. All technical solutions formed by equivalent replacement are within the scope of protection required by the utility model.

Claims (4)

1. A microwave ablation antenna for the ablation treatment of tumor embolus obstruction, comprising a coaxial cable and a transmitter fixedly connected to one end of the coaxial cable; it is characterized in that: the coaxial cable is connected to one end of the transmitter Remove the outer skin of 12mm and the outer conductor layer of 2mm, and put a copper tube on the remaining outer conductor layer; the transmitting head is short-circuited with the inner conductor; the other end of one end of the coaxial cable is connected with a coaxial radio frequency connection device. 2. The microwave ablation antenna for the ablation treatment of tumor embolus obstruction according to claim 1, characterized in that: the top of the emitting head is hemispherical. 3. The microwave ablation antenna for the ablation treatment of tumor embolism obstruction according to claim 1, characterized in that: the coaxial cable is a semi-flexible cable with an outer diameter of 1.3 mm. 4. The microwave ablation antenna for the ablation treatment of tumor embolism obstruction according to claim 1, characterized in that: the diameter of the transmitting head is 1.3 mm.