摘要:
The invention provides an imaging system comprising an optical element for deflecting axially incident light into a series of axially spaced outward radial projections, and further comprising an image collection means for collecting reflected light. The element comprises a plurality of light deflecting surfaces or features which are arranged at axially successive points along the element, each at a different radial location. The light-deflecting surfaces are arranged to deflect light incident upon them from an axial direction in a radial direction, each thereby generating a radial projection of light from the element. A beam or beam bundle projected along the element has successive outer annular layers stripped by the facets and deflected outwards at different axial points along the structure.
摘要:
A tongue advancer system is for use in a tongue manipulation device, comprising a tissue anchor having a set of retractable fingers having a retracted configuration in which the tissue anchor is adapted to be loaded into a delivery tube and a deployed configuration in which the fingers are adapted for extending into tongue tissue in forward and lateral directions. The system further comprises a spacer which extends beyond the maximum forward extent of the retractable fingers. The spacer ensures that the fingers do not puncture the tongue surface.
摘要:
A bone anchor for a tongue manipulation device which has a tissue anchor for attachment to the tongue, the bone anchor, for example for attachment to the mandible and a tether line which fixes the tissue anchor to the bone anchor. The bone anchor has a spool arrangement with a indexing part and a spool part. In a first configuration the spool part is operable to spool the tether line without operation of the indexing part, and in a second configuration the spool part is operable to spool the tether line with operation of the indexing part. This means the spooling to take up slack in the tether line does not cause wear to the indexing springs, and it also means the user can feel when the slack has been taken up.
摘要:
A radial imaging system is provided for capturing an image of an object which extends radially around an image sensor in an object plane. A reflector (42) is used for reflecting incident light (46) to a generally axial direction. The image sensor (40) receives the generally axially directed reflected light, and it has a stepped reflector surface having a series of reflecting linear facets (48) which together form a generally curved, e.g. concave surface. This design enables improved uniformity of the imaging performance with respect to the radial distance to the object being imaged.
摘要:
A radial illumination system is for projecting a light pattern radially. A light source generates a light output to an optical fiber. A ferrule is provided around the end of the optical fiber, and a reflector is mounted over or in the ferrule or integral with the ferrule, for redirecting the light to form generally radial light. In this way, a simple design with low component count is able to perform the optical alignment and optical reflecting functions.
摘要:
A tongue manipulation device (10) has a tissue anchor (20) for attachment to the tongue, a bone anchor (22) typically for attachment to the mandible and a tether line (24) which fixes the tissue anchor to the bone anchor. The bone anchor comprises a tether line spool arrangement which comprises a spool (46) rotatable about a spooling axis and a spooling locking arrangement (54). The spooling locking arrangement is controlled by rotation about the spooling axis between spooling locking and permitting configurations. In this way, the physician implanting and setting the device can perform titration and subsequent locking as two independent operations.
摘要:
A bone anchor for a tongue manipulation device which has a tissue anchor for attachment to the tongue, the bone anchor, for example for attachment to the mandible and a tether line which fixes the tissue anchor to the bone anchor. The bone anchor has a spool arrangement with a indexing part and a spool part. In a first configuration the spool part is operable to spool the tether line without operation of the indexing part, and in a second configuration the spool part is operable to spool the tether line with operation of the indexing part. This means the spooling to take up slack in the tether line does not cause wear to the indexing springs, and it also means the user can feel when the slack has been taken up.