Flexible cold scalpel probe for freezing treatment of body's cavity tumor

A cryotherapy and flexible technology, which is applied in the direction of cooling surgical instruments, etc., can solve the problems of difficult insulation performance, complicated manufacturing process, and low-temperature frostbite, and achieves the effects of easy cooling and frostbite protection, unique flexible functions, and simple structure

Inactive Publication Date: 2003-09-10
HYGEA MEDICAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existence of the vacuum structure of this type of cold knife makes the manufacturing process quite complicated, and its thermal insulation performance is actually difficult to guarantee (because the vacuum volume is too small), so that it will inevitably cause low-temperature frostbite to healthy tissues along the process, and Cold knives need to be evacuated periodically
A recently reported U.S. patent (Chinn, D.O., cryoprobe with heat insulation and heating jacket, U.S. Patent: No.5906612; Chinn, D

Method used

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  • Flexible cold scalpel probe for freezing treatment of body's cavity tumor
  • Flexible cold scalpel probe for freezing treatment of body's cavity tumor
  • Flexible cold scalpel probe for freezing treatment of body's cavity tumor

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Embodiment Construction

[0021] Further describe the present invention below in conjunction with accompanying drawing and specific embodiment:

[0022]It can be seen from the figure that the flexible cold knife probe used for the cryotherapy of human cavity tumors provided by the present invention includes: a flexible probe body, the flexible probe body includes an outer sleeve 1 made of a flexible material placed concentrically and an inner sleeve 1. Sleeve 2, the inner sleeve 2 communicates with the liquid nitrogen bottle or liquid helium bottle 9 used to provide the inner sleeve 2 with refrigerated liquid, the outer surface of the outer sleeve 1 is covered with an electric heating element 12, the electric heating element 12 The outer surface is covered with insulating material 13; a temperature sensor 3 is arranged at intervals between the electric heating element 12 and the insulating material 13, and the wiring harness output end of the temperature sensor 3 is drawn out along the electric heating ...

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Abstract

The flexible cold scalpel probe for freezing treatment of body's cavity tumor includes a probe body of flexible material and possessing inner casing connected with liquid nitrogen cylinder, outer casing covered electric heating element and insulating material and heat insulating jacket with hea tinsulating handle; one temperature sensor between the two casings; one freezing metal head in the front of the probe body filled with porous metal wires; one temperature sensor in the tip of the freezing metal head and with output connected to the data collector; and the data collector connected to a computer. The device has no vacuum structure, small in size, low cost, no inserting damage, adjustable temperature rise and lowering, fast response speed and good continuity and is especially suitable for nasopharyngeal carcinomal, lung cancer, rectum cancer and other cavity tumor.

Description

technical field [0001] The invention relates to a micro-cold knife probe for cryotherapy of human cavity tumors, in particular to a flexible probe main body outer wall coated with an electric heating film and using liquid nitrogen as a freezing medium for cryotherapy of human cavity tumors Flexible cold knife probe. Background technique [0002] For a long time, rational treatment of human tumor tissue has been the goal of clinical medicine. So far, radiotherapy, chemotherapy, hyperthermia and cryotherapy have been developed. Among various treatment methods, cryogenic surgery can replace surgical resection without sutures , and has the advantages of anesthesia, analgesia, hemostasis and reduction of bleeding, light reaction, high safety, and ability to prevent tumor spread. It has attracted attention in tumor treatment. At present, it has been widely used in many medical fields such as oral cavity, skin, Rectum, urology, gynecology, oncology, neu...

Claims

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Application Information

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IPC IPC(8): A61B18/02
Inventor 刘静
Owner HYGEA MEDICAL TECH CO LTD
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