Cryogenic probe for treating enlarged volume of tissue

A low-temperature, surface-plane technology, applied in the field of surgery, can solve the problems of large-volume tissue damage, injury, etc.

Inactive Publication Date: 2009-09-02
阿贝尔医疗有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using Multiple Probes Causes Additional Injury and Discomfort
Indeed, it should be understood that taking such a procedure always results in damage to the bulky tissue contacted along the entire length of the cryoprobe used to bring the probe tip to its destination

Method used

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  • Cryogenic probe for treating enlarged volume of tissue
  • Cryogenic probe for treating enlarged volume of tissue
  • Cryogenic probe for treating enlarged volume of tissue

Examples

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Embodiment Construction

[0025] The present invention relates to novel cryogenic probes that facilitate various medical applications, especially surgical techniques such as cryoablation.

[0026] Such probes are helpful in treating cysts and cancerous growths, and must be guided through healthy body tissue or through a body cavity to the desired location, and should be as thin as possible to minimize damage to healthy tissue. To effectively treat cancerous growths, the volume of cryogenically frozen tissue should include all cancer cells. Therefore, it is desirable that the effective diameter of the active portion of the probe tip be large. These are competing requirements.

[0027] The volume treatable with a single insertion of a single acceptably thin probe of the prior art may not be sufficient to treat the full volume of tissue that needs to be treated. The present invention provides an extendable probe tip which is preferably configurable to extend laterally between fully extended and fully re...

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PUM

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Abstract

A cryoprobe for surgical and other treatments. The cryoprobe comprises an expandable section that performs displacement of a distal cryotip forwards when there is elevation of the operation pressure in the interior of the cryoprobe. Needle-wise metal elements are installed on the external side of the cryotip. These needle-wise elements are deflecting outwards by a deflecting member fastened on the distal edge of an external shaft of the cryoprobe. This allows a significant enlargement of the frozen volume of the treated tissue with the same operation temperature and the outer diameter of the cryoprobe. In another embodiment, the needle elements are formed in a displaceable metal sheath and a distal section of a cryotip and / or special protrusions on this distal section act as the deflecting member.

Description

field of invention [0001] The present invention relates to providing a cryogenic probe for medical use, for example, for surgery. Background of the invention [0002] Cryogenic technology provides cooling to extremely low temperatures. It is widely used in medicine, and especially in surgery. Freezing tissue can kill its cells, and this makes cryosurgery especially helpful in treating cancerous growths. A cryogenic probe can be used to kill malignant cyst cells in breast tissue. The cryoprobe needs to have a small diameter in order to cause minimal injury and damage to the body tissue in its passage through the body tissue. [0003] Typically, the site to be treated is significantly larger than the diameter of the cryoprobe, and all too often wider than the effective cryovolume of tissue that can be inserted and treated with a single probe. Using multiple probes leads to additional injury and discomfort. Indeed, it should be understood that taking such a procedure alway...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/02
CPCA61B2018/0262A61B2018/0275A61B18/02
Inventor 狄迪尔·托彼埃亚历山大·莱文米隆·卡冈诺维奇
Owner 阿贝尔医疗有限公司
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