Reverse angle thread for preventing splaying in medical devices

Details Reverse angle thread for preventing splaying in medical devices Reverse angle thread for preventing splaying in medical devices

A - Human Necessities

61

B

A61B 17/68 (2006.01) A61B 17/70 (2006.01)

Patent

CA 2349849

Apparatus is disclosed for use in closing a medical device (10) and preventing splaying of wall portions or legs (20) of the medical device (10) while maintaining low profile and minimal bulk of the medical device (10). The disclosed device is a medical device (10) including a receiver member (11) and a closure member (12). The receiver member (11) includes an internal reverse angle thread (44), and the closure member (12) includes an outer reverse angle thread (46), matable with the inner reverse angle thread (44). When the closure member (12) is threaded into the receiver member (11), forces tending to splay the wall portions or legs (20) of the receiver member (11) cause an interference fit between thread surfaces of the closure member and the receiver member, preventing the splay from occurring.

La présente invention concerne un appareil destiné à obturer un dispositif médical (10) et à empêcher l'ébrasement de parties de parois ou d'ailes (20) du dispositif médical (10) tout en lui conservant un profil bas ainsi qu'un encombrement minimal. Le dispositif de l'invention est un dispositif médical (10) constitué d'une douille (11) et d'un obturateur (12). La douille (11) est intérieurement filetée en contre-dépouille (44) alors que l'obturateur (12) est extérieurement fileté en contre-dépouille (46) de façon à épouser la forme du filetage intérieur en contre-dépouille (44). Le vissage de l'obturateur (12) dans la douille (11), les forces tendant à ébraser des parties de parois ou des ailes (20) de la douille (11) aboutissent à un montage en force des surfaces du filet de l'obturateur dans la douille, ce qui empêche l'ébrasement de se produire.

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