Positive locking cannula

Details Positive locking cannula Positive locking cannula

A - Human Necessities

61

M

A61M 16/04 (2006.01) A61M 39/10 (2006.01)

Patent

CA 2182266

A positive locking device (10) for connecting an inner cannula (not shown) within an outer cannula (21) to form a tracheostomy tube device. The tracheostomy device is provided with a connector head (11) or connector body (12) having ribs (17) and or lips (31) with associated catches (36) disposed thereon. Cantilevered members (24) with latch receiving members corresponding to the catches are provided on the component (connector or connector head) not having the rib or lip. Alternatively, catches may be associated with cantilevered members and latch receiving members with lips or ribs. Catches and latch receiving surfaces interlock and a securing component is fixed over the connector and connector head to create a positive lock.

Accouplement rigide (10) servant à raccorder une canule interne (non représentée) à une canule externe (21) de façon à former un tube de trachéotomie. Le dispositif de trachéotomie comporte une tête de raccord (11) ou un corps de raccord (12) présentant des nervures (17) ou lèvres (31) munis d'ergots (36). Des éléments (24) en porte-à-faux comportant des encoches dans lesquelles viennent se loger les ergots sont ménagés sur le composant (raccord ou tête de raccord) ne présentant ni lèvres, ni nervures. Dans une variante, les ergots peuvent être associés à des éléments en porte-à-faux et à des encoches avec des lèvres ou des nervures. Les ergots et les surfaces munies d'encoches s'entre-verrouillent et une pièce sécurité se fixe au-dessus du raccord et de la tête de raccord, constituant ainsi un accouplement par liaison de forme.

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