Snap-in proximal connector for mounting an optic fiber...

G - Physics – 02 – B

Patent

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Details

G02B 6/42 (2006.01) G02B 6/38 (2006.01)

Patent

CA 2285214

The proximal connector (22) includes a stainless steel cone-shaped ferrule (30) enclosing a proximal end (33) of the optic fiber element. The ferrule (30) is inserted within a matching aperture (24) of a receiving block (26) which is also made of stainless steel. The matching shapes of the ferrule (30) and the aperture (24) of the receiving block (26) ensure effective heat transference from the ferrule (30) into the receiving block (26). Both ferrule (30) and the aperture (24) are axially symmetric such that any rotation of the proximal connector (22) while inserted into the receiving block (26) does not change the location of the entrance aperture of the optic fiber element (14). The proximal connector (22) also includes a case having an indented ring (36). A ball plunger (42) biasing mechanism is mounted within the aperture (24) of the receiving block (26) and is positioned for engaging with the indented ring (26) only while the proximal connector (22) is fully and securely inserted within the aperture (24). The plunger (42) prevents accidental removal of the proximal connector (22) while also providing a biasing force for ensuring solid contact between the cone-shaped ferrule (30) and the corresponding portions of the receiving block (26) to further facilitate the heat conduction.

L'invention porte sur un connecteur proximal (22) comprenant une ferrule conique en acier inoxydable (30) renfermant une extrémité proximale (33) d'élément de fibre optique. La ferrule (30) est insérée dans un orifice correspondant (24) d'un bloc récepteur (26) également en acier inoxydable. Les formes correspondantes de la ferrule (30) et de l'orifice (24) du bloc récepteur (26) permettent un transfert thermique efficace de la ferrule (30) au bloc récepteur (26). La ferrule (30) et l'orifice (24) sont axialement symétriques de sorte que toute rotation du connecteur proximal (22) lorsque celui-ci est inséré dans le bloc récepteur (26) ne modifie pas l'emplacement de l'orifice d'introduction de l'élément de fibre optique (14). Le connecteur proximal (22) comporte également une enveloppe pourvue d'une section annulaire renfoncée (36). Un mécanisme à bille sollicitant un plongeur (42) est monté dans l'orifice (24) du bloc récepteur (26) et est positionné de façon à venir en contact avec la section annulaire renfoncée (26) uniquement lorsque le connecteur est totalement et solidement inséré dans l'orifice (24). Le plongeur (42) empêche le connecteur proximal (22) de sortir de l'orifice et crée également une force de sollicitation qui assure un contact ferme entre la ferrule conique (30) et les parties correspondantes du bloc récepteur (26) de façon à faciliter ensuite la conduction thermique.

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