초록 ▼

A flexible, steerable device for conducting exploratory procedures is disclosed. The device includes at least one spine, each having stiffening means for selectively rendering the spine rigid and flexible along its length. A flexible sheath surrounds the spine and is axially slidably moveable relati

A flexible, steerable device for conducting exploratory procedures is disclosed. The device includes at least one spine, each having stiffening means for selectively rendering the spine rigid and flexible along its length. A flexible sheath surrounds the spine and is axially slidably moveable relative to the spine so that the sheath will follow and conform to the shape of a spine in the rigid state and resist further flexure when the spine is in a relaxed state. A steerable distal tip is provided on the distal end of the device. Controls for the distal tip are mounted on the proximal end of the device. Mechanisms are provided on the distal end of the device for selectively activating and deactivating the stiffening means of the spine. An instrument conduit may be mounted on the sheath.

대표청구항 ▼

[ What is claimed is:] [1.] A flexible steerable device comprising:at least one spine having a distal end and a proximal end, said spine having stiffening means in operative connection therewith to selectively render portions of said spine rigid and flexible along its length;a flexible sheath surrou

[ What is claimed is:] [1.] A flexible steerable device comprising:at least one spine having a distal end and a proximal end, said spine having stiffening means in operative connection therewith to selectively render portions of said spine rigid and flexible along its length;a flexible sheath surrounding said spine;a flexible instrument conduit secured to said flexible sheath, said spine being axially slidably moveable relative to said sheath and said instrument conduit whereby said sheath and said instrument conduit will follow the shape of said spine when said spine is in a stiff state and resist further flexure when said spine is in a flexible state;a steerable distal tip in communication with said distal end of said spine, wherein said distal end of said spine is insertable into and retraceable from said steerable distal tip, said steerable distal tip being in communication with control means mounted on said proximal end of said spine for steering said distal tip; andmeans for selectively activating and deactivating said stiffening means at said proximal end of said spine.