Adjustable tissue or nerve cuff and method of use

A - Human Necessities – 61 – N

Patent

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Details

A61N 1/375 (2006.01) A61B 5/00 (2006.01) A61B 5/04 (2006.01) A61B 17/00 (2006.01) A61B 17/84 (2006.01)

Patent

CA 2715543

An implantable, length adjustable body tissue cuff, apparatus and method. The cuff is a flat, thin, elastomeric strap of biocompatible non-conductive material with tail, body and head portions and length in excess of body tissue circumference. The tail and head provide adjustable length fastening one to the other by a) the tail being formed with a plurality of longitudinally spaced, laterally paired locking projections and the head being formed with one or more locking apertures; or b) the tail being formed with a plurality of longitudinally spaced locking apertures and the head being formed with one or more laterally paired locking projection. The locking projection shape allows for passage through the locking aperture, while restricting movement in a reversing direction. The cuff accommodates tissue interacting devices such as stimulators or recorders, with conductive elements attached to, imbedded in, or printed on the strap body portion. In use, the cuff is intra-operatively adjusted and readjusted to optimize placement and to maximize contact between conductive elements and body tissue, without tissue damage. This cuff accommodates varying tissue diameters and simplifies cuff manufacture and surgical placement.

La présente invention se rapporte à un manchon pour tissu corporel implantable et de longueur ajustable, ainsi quà des appareils et procédés correspondants. Le manchon est une bande élastomère plate et mince de matériau non conducteur biocompatible comportant des parties queue, corps et tête dont la longueur dépasse de la circonférence du tissu corporel. La queue et la tête offrent une longueur ajustable en vue dune fixation mutuelle par a) la queue étant formée dune pluralité de saillies de verrouillage longitudinalement espacées et latéralement appariées et la tête étant formée dune ou de plusieurs ouvertures de verrouillage ; ou b) la queue étant formée dune pluralité douvertures de verrouillage longitudinalement espacées et la tête étant formée dune ou de plusieurs saillies de verrouillage latéralement appariées. La forme des saillies de verrouillage permet le passage à travers louverture de verrouillage, tout en limitant le déplacement dans un sens inverse. Le manchon sadapte à des dispositifs dinteraction de tissu tels que des stimulateurs ou enregistreurs, à éléments conducteurs fixés ou imprimés sur la partie corps de bande ou incorporés dans cette dernière. En utilisation, le manchon est ajusté et réajusté de façon préopératoire afin doptimiser la mise en place et de maximiser le contact entre les éléments conducteurs et le tissu corporel, sans endommager le tissu. Ce manchon sadapte à différents diamètres de tissu et simplifie la fabrication et la mise en place chirurgicale du manchon.

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