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Microwave generator

A technology of microwave generator and insertion tube, applied in parts of surgical instruments, medical science, surgery, etc., can solve problems such as increasing the full diameter of the probe

Inactive Publication Date: 2013-04-03
UK INVESTMENT ASSOC LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the tubes or formers used for the above mentioned generators have the disadvantage of requiring relatively large flow and return passages in order to achieve the required flow rates, obviously with a corresponding increase in the overall diameter of the probe

Method used

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  • Microwave generator
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  • Microwave generator

Examples

Experimental program
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Embodiment Construction

[0042] with reference to the attached figure 1 , shows a microwave generator probe comprising a microwave generator 10 connected to a generator probe 11 via an elongated flexible feeder cable 12 . Probe 11 includes a handle portion 13 and an elongated shaft portion 14 extending from handle 13 . In use, the generator 10 generates a microwave signal that is transmitted along the feeder cable 12 to the probe 11 . The microwave signal is then transmitted along the shaft 14 of the probe to the radiating tip 15 at the distal end of the probe.

[0043] with reference to the attached figure 2 , the rod 14 comprises an outer elongated tubular wall made of stainless steel. A coaxial transmission line 17 extends within the tube wall 14 and is coupled at its proximal end to the microwave feeder cable 12 and at its distal end to a radiating antenna 16 disposed within the tip 15 of the probe 11 . An elongated shunt member 19 in the form of a solid cable or wire is coextensive with the ...

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PUM

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Abstract

The invention discloses a microwave generator, which comprises a probe containing an elongated rod (14), a microwave radiating portion (15), a transmission line (17) and an elongated distributary constructional element (19), wherein the elongated rod (14) is provided with an external tubular wall (18); the microwave radiating portion (15) is arranged at a far end of the elongated rod (14); the inner part of the external tubular wall (18) extends to the transmission line (17) of the radiating portion; the elongated distributary constructional element (19) and the transmission line (17) longitudinally and synergetically extend along the elongated rod (14); and the side wall of the transmission line (17) is mutually contacted with the side wall of the distributary constructional element (19), and is contacted with the inner surface of the external pipe wall (18) at a discrete position of two separated spaces, so that a pair of runners (20 and 21) is formed in the elongated rod (14); and when the microwave generator is used, a cooling liquid flows from the runner (20) and returns from the other runner (21); and the probe is not complex in structure and is easy to assemble.

Description

[0001] This case is a divisional application with the application number 200980104359.0, the application date is February 5, 2009, and the name is "Microwave Generator". technical field [0002] The invention relates to a medical microwave generator. Background technique [0003] It is known to ablate body tissue using microwave generators, which heat and destroy surrounding tissue. One application of this generator is in non-invasive cancer treatment of internal organs of the human body such as the liver. GB2415630 discloses a generator of the above type comprising a probe having an elongated shaft which can be inserted into a patient. The proximal end of the probe includes a handle connected to an external microwave generator by an elongated flexible cable. An elongated microwave transmission line extends inside the probe from the handle to a radiating tip located at or adjacent to the distal end of the probe. In use, a microwave field projected from the tip heats and a...

Claims

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Application Information

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IPC IPC(8): A61B18/18
Inventor 奈杰尔·克罗宁皮特·克莱格
Owner UK INVESTMENT ASSOC LLC