Detachable cryosurgical probe with breakaway handle

A - Human Necessities – 61 – B

Patent

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Details

A61B 18/02 (2006.01)

Patent

CA 2606026

The detachable cryosurgical probe includes a disposable probe assembly and a reusable probe assembly. The disposable probe assembly includes a breakaway collar (44) which, when twisted away, activates a finger lock element (24) which provides release of the disposable probe assembly from the reusable probe assembly. Additional features include a safety valve assembly for impeding cryogenic working fluid flow when the disposable probe assembly is detached from the reusable probe assembly and an electrical confirmation assembly for providing electrical confirmation that the disposable probe assembly is connected. Other embodiments include a sliding mechanism that allows for selectively positioning of the vacuum tube relative to the shaft to create an ice ball of the desired size and configuration.

L'invention concerne une sonde cryochirurgicale détachable comprenant un ensemble sonde jetable et un ensemble sonde réutilisable. L'ensemble sonde jetable comprend un collier de rupture, qui lorsqu'il est spiralé, active un élément de verrouillage à doigt qui permet la libération de l'ensemble sonde jetable de l'ensemble sonde réutilisable. Des caractéristiques supplémentaires comprennent un ensemble de soupape de sécurité destiné à empêcher l'écoulement du liquide de travail cryogène, lorsque l'ensemble sonde jetable est détaché de l'ensemble sonde réutilisable et un ensemble de confirmation électrique permet de produire une confirmation électrique indiquant que l'ensemble sonde jetable est fixé. Dans d'autres modes de réalisation, un mécanisme de coulissement permet le positionnement sélectif du tube sous vide par rapport à la tige, ce qui permet la création d'une bille de glace présentant une taille et une configuration souhaitées.

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