Shape sensing fiber optic tip protection systems and devices
AssigneeBard Access Systems, Inc.
InventorsAnthony K. Misener, Steffan Sowards, William Robert McLaughlin
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Abstract
Disclosed herein are fiber-optic assemblies for insertion within a patient body, that include an optical fiber and a secondary mechanical layer extending around a circumference of the optical fiber along at least the distal portion of the optical fiber. A distal tip section of the optical fiber includes a portion of the optical fiber disposed within a circuitous path, or an expansion of the optical fiber. The optical fiber may be a shape sensing optical fiber. A medical device assembly includes the fiber-optic assembly coupled with a catheter, a stylet, a probe, or a guidewire. The secondary mechanical layer and/or the expansion may be formed of an electrically conductive material.
Claims12
A fiber-optic assembly for insertion within a patient body, comprising:
- a shape sensing optical fiber defining a distal portion comprising a distal section of the optical fiber, the distal section including an optical fiber tip;
- and
- a secondary mechanical layer extending around a circumference of the optical fiber along at least the distal portion of the optical fiber, the secondary mechanical layer including a distal end disposed distal the optical fiber, wherein:
- the distal section is disposed within the secondary mechanical layer,
- the distal section includes a portion of the optical fiber disposed within a circuitous path defined with respect to the secondary mechanical layer, the circuitous path configured to inhibit damage of the optical fiber tip during use of the optical fiber, and
- a portion of the distal section extends distally away from the optical fiber tip toward the distal end of the secondary mechanical layer.
An elongate medical device assembly, comprising:
- a shape sensing optical fiber assembly coupled with any one of a catheter, a stylet, a probe, or a guidewire, the optical fiber assembly comprising:
- an optical fiber defining an optical fiber tip and a distal portion extending proximally away from the optical fiber tip;
- and
- a secondary mechanical layer extending around a circumference of the optical fiber along at least the distal portion of the optical fiber, the secondary mechanical layer including a distal end disposed distal the optical fiber, wherein:
- the distal section is disposed within the secondary mechanical layer,
- the distal section includes a portion of the optical fiber disposed within a circuitous path defined with respect to the secondary mechanical layer, the circuitous path configured to inhibit damage of the optical fiber tip during use of the optical fiber, and
- a portion of the distal section extends distally away from the optical fiber tip toward the distal end of the secondary mechanical layer.
Dependencies are inferred from the claim text.