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Circumferentia weld throttling type cryoprobe

A technology of cryoprobe and annular seam throttling, which is applied in the direction of cooling surgical instruments, etc., to achieve the effects of easy fabrication, small probe and simple structure

Inactive Publication Date: 2004-03-10
北京库蓝医疗设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to overcome the defects of the above-mentioned complex structure and the limitation of the diameter of the spiral tube, and provide a cryosurgical instrument with a smaller diameter and less traumatic effect for cryosurgical use-annular joint flow cryoprobe, so as to meet the requirements of minimally invasive cryosurgery, and its structure is simpler, easier to manufacture, and cheaper

Method used

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  • Circumferentia weld throttling type cryoprobe
  • Circumferentia weld throttling type cryoprobe
  • Circumferentia weld throttling type cryoprobe

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Embodiment Construction

[0042] Further describe the present invention below in conjunction with accompanying drawing and embodiment:

[0043] Depend on figure 1 -4 It can be seen that the cryoprobe provided by the present invention includes a connecting joint 111, a connecting conduit 222, a handle 333 and a probe 444. Enter the lumen in the handle 333, and communicate with the probe 444 that communicates with the handle 333, it is characterized in that, the probe 444 includes a probe rod 777, is located in the probe rod 777 and is connected by the probe rod 777 The return pipe 999 and the heat insulating sleeve 888 are placed concentrically at the axial center of the center outwards. The length of the heat insulating sleeve 888 is shorter than the length of the return pipe 999, and a high-pressure gas section is formed between the heat insulating sleeve 888 and the return pipe 999. An annular slit 771 with dual functions of air flow and gas reheating. A heat exchange annular slit 772 is formed bet...

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Abstract

A throttle-type freezing probe with ring seams is composed of handle and probe which consists of probe rod and concentric reflux tube and insulating sleeve. The internal cavity of said handle is connected via connecting tube to the freezing operation machine. Two ring seams are formed between said reflux tube and insulating sleeve and between the front end of reflux tube and the probe rod. A cylinder is formed between probe head and front end of reflux tube. It is possible to install a temp sensor to the front end of reflux tube.

Description

field of invention [0001] The invention belongs to a surgical instrument used for cooling local tissues of the human body in order to destroy cancer cells or benign tumor cells and temporarily block nerves in surgery, in particular to a ring for destroying cancer cells or benign tumor cells in surgery Slit-throttle cryoprobe. Background technique [0002] Surgical procedures that destroy living tissue structures by freezing cells are commonly used to destroy cancer cells and benign tumor cells. Cryosurgery is also used to temporarily block nerves to relieve pain within a certain period of time after surgery. Compared with open surgery, cryogenic surgery has many advantages: fast, almost painless, no need for local anesthesia, no risk of postoperative infection, and almost no scars. [0003] The mechanism of cell destruction by cryosurgery is: [0004] 1. If the tissue is cooled slowly, the cells will lose a large amount of water, which will incre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/02
Inventor 柯钢
Owner 北京库蓝医疗设备有限公司
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