Steerable laser probe
First Claim
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1. A laser probe comprising:
- a handle having a handle distal end and a handle proximal end;
an actuation channel of the handle;
an optic fiber guide of the handle;
an actuation lever having an actuation lever distal end and an actuation lever proximal end wherein the actuation lever proximal end is disposed in the actuation channel and wherein the actuation lever distal end extends out from the actuation channel;
a pivot pin guide of the actuation lever;
a wire proximal loop housing of the actuation lever;
a pivot pin housing of the handle;
a pivot pin, the pivot pin disposed in the pivot pin housing and the pivot pin guide;
a single housing tube having a housing tube distal end and a housing tube proximal end, the housing tube fixed to a portion of the handle;
a wire having a wire distal end and a wire proximal end, the wire disposed in the housing tube wherein the wire distal end is adjacent to the housing tube distal end and wherein a portion of the wire is fixed to the housing tube;
a wire proximal loop of the wire, the wire proximal loop disposed in the wire proximal loop housing wherein the wire proximal loop is disposed around a portion of the actuation lever and wherein the wire proximal loop is fixed in the wire proximal loop housing; and
an optic fiber having an optic fiber distal end and an optic fiber proximal end, the optic fiber disposed in an inner bore of the handle, the optic fiber guide, the actuation channel, and the housing tube wherein the optic fiber distal end is adjacent to the housing tube distal end and wherein a portion of the optic fiber is fixed to an inner portion of the housing tube and wherein actuating the actuation lever distal end away from the handle proximal end is configured to rotate the actuation lever about the pivot pin in a first direction and retract the cable relative to the housing tube and curve the housing tube and the optic fiber.
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Abstract
A steerable laser probe may include a handle, an actuation lever, an optic fiber, and a housing tube. The housing tube may have a first housing tube portion having a first stiffness and a second housing tube portion having a second stiffness. The second stiffness may be greater than the first stiffness. The optic fiber may be disposed within the housing tube and within an inner bore of the handle. An actuation of the actuation lever about a pivot pin of the handle may gradually curve the optic fiber. An actuation of the actuation lever about the pivot pin of the handle may gradually straighten the optic fiber.
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Citations
20 Claims
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1. A laser probe comprising:
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a handle having a handle distal end and a handle proximal end; an actuation channel of the handle; an optic fiber guide of the handle; an actuation lever having an actuation lever distal end and an actuation lever proximal end wherein the actuation lever proximal end is disposed in the actuation channel and wherein the actuation lever distal end extends out from the actuation channel; a pivot pin guide of the actuation lever; a wire proximal loop housing of the actuation lever; a pivot pin housing of the handle; a pivot pin, the pivot pin disposed in the pivot pin housing and the pivot pin guide; a single housing tube having a housing tube distal end and a housing tube proximal end, the housing tube fixed to a portion of the handle; a wire having a wire distal end and a wire proximal end, the wire disposed in the housing tube wherein the wire distal end is adjacent to the housing tube distal end and wherein a portion of the wire is fixed to the housing tube; a wire proximal loop of the wire, the wire proximal loop disposed in the wire proximal loop housing wherein the wire proximal loop is disposed around a portion of the actuation lever and wherein the wire proximal loop is fixed in the wire proximal loop housing; and an optic fiber having an optic fiber distal end and an optic fiber proximal end, the optic fiber disposed in an inner bore of the handle, the optic fiber guide, the actuation channel, and the housing tube wherein the optic fiber distal end is adjacent to the housing tube distal end and wherein a portion of the optic fiber is fixed to an inner portion of the housing tube and wherein actuating the actuation lever distal end away from the handle proximal end is configured to rotate the actuation lever about the pivot pin in a first direction and retract the cable relative to the housing tube and curve the housing tube and the optic fiber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification