LASER TISSUE ABLATION SYSTEM

• US 20170007326A1
• Filed: 07/13/2016
• Published: 01/12/2017
• Est. Priority Date: 06/03/2010
• Status: Active Grant

• Current Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed, Inc. (Boston Scientific Corporation)
• Inventors: BECK, Michael T., KOULLICK, Edouard A., LUND, Robert E., EVANS, Douglas L., WILL, Samuel L., WATSON, Stuart F., KANG, Hyun Wook, CRANK, Justin M., DY, Somany, THORSON, Micah D.
• Granted Patent: US 10,105,184 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 18/22 the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
• CPC Class Codes: A61B 18/24 with a catheter A61B18/26, A61B18/28 take precedence
• CPC Class Codes: A61B 2017/4216 Operations on uterus, e.g. endometrium
• CPC Class Codes: A61B 2018/00196 reciprocating lengthwise
• CPC Class Codes: A61B 2018/00202 rotating
• CPC Class Codes: A61B 2018/0022 Balloons
• CPC Class Codes: A61B 2018/00226 extending from a surface, i.e. Blisters
• CPC Class Codes: A61B 2018/00559 Female reproductive organs
• CPC Class Codes: A61B 2018/00577 Ablation
• CPC Class Codes: A61B 2018/00982 combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes
• CPC Class Codes: A61B 2018/1861 with an instrument inserted into a body lumen or cavity, e.g. a catheter
• CPC Class Codes: A61B 2018/2244 Features of optical fibre cables, e.g. claddings
• CPC Class Codes: A61B 2018/2261 with scattering, diffusion or dispersion of light
• CPC Class Codes: A61B 2090/3614 using optical fibre

Abstract

Embodiments of the invention are directed to a laser ablation system. In one embodiment, the laser ablation system comprises a shaft, a balloon, a laser fiber and a viewing fiber. The shaft has a proximal end and a distal end. The balloon is attached to the distal end of the shaft, a portion of which is within the balloon. The laser fiber has a distal end comprising a light dispenser that is configured to deliver laser light through the balloon. The viewing fiber is configured to image an interior balloon. In accordance with another embodiment, the laser ablation system comprises a shaft, a balloon and a laser fiber. The shaft has a proximal end and a distal end. The balloon is attached to the distal end of the shaft, which is within the balloon. The balloon includes an inflated state, in which the balloon is shaped to conform to a cavity of a patient. The laser fiber has a distal end comprising light dispenser that is configured to deliver laser light through the balloon.

Claims

1-20. -20. (canceled)

21. An applicator comprising:

a shaft with a proximal end opposite of a distal end along a longitudinal axis;

a balloon attached to the distal end of the shaft;

a support attached to a proximal end of the shaft;

a plurality of channels extending through each of the support and the shaft in a direction parallel with the longitudinal axis; and

at least one positioning component that is mounted on the support and operable to move a fiber placed in one of the plurality of channels.

22. The applicator of claim 21, wherein the fiber is a laser fiber.

23. The applicator of claim 22, wherein the support includes a laser actuator that is operable with a laser source to deliver laser light with the laser fiber.

24. The applicator of claim 21, wherein the support is removably attached to the proximal end of the shaft.

25. The applicator of claim 24, wherein the support includes a hinged cover having an open position, wherein the proximal end of the shaft is removable from the bore, and a closed position, wherein the proximal end of the shaft is attached to the bore.

26. The applicator of claim 21, wherein the balloon comprises:

a first balloon attached to the distal end of the shaft, the distal end of the shaft being within the first balloon; and

a second balloon within the first balloon, the second balloon being formed of a material that is less distensible than a material forming the first balloon.

27. An applicator comprising:

a support with a proximal end opposite of a distal end along a longitudinal axis;

a bore extending through the support along the longitudinal axis from the distal end to an internal point, the bore having an interior surface configured to receive and retain a proximal end of a shaft in the bore, the shaft having a shaft channel extending therethrough;

a support channel extending through the support along the longitudinal axis from the proximal end to the internal point, the support channel being aligned with the shaft channel when the proximal end of the shaft is received in the bore; and

a positioning component that is mounted on the support and operable to move a fiber extending through the shaft and support channels.

28. The applicator of claim 27, wherein the interior surface of the bore has a diameter sized to receive the shaft, and a shoulder positioned to retain the proximal end of the shaft in the bore.

29. The applicator of claim 28, wherein the support includes a hinged cover having an open position, wherein the proximal end of the shaft is receivable in the bore, and a closed position, wherein the proximal end of the shaft is retainable in the bore.

30. The applicator of claim 29, wherein the proximal end of the shaft has a fluid input port, and the support further includes a conduit channel leading to the fluid input port.

31. The applicator of claim 30, wherein the support includes a grip extending transversely to the longitudinal axis, and the conduit channel extends through the grip.

32. The applicator of claim 27, wherein the positioning component includes a first wheel, and rotation of the first wheel causes movement of the fiber.

33. The applicator of claim 32, further comprising an axle extending through the support along a lateral axis transverse with the longitudinal axis, wherein the first wheel is coupled to a first roller and the axle, an exterior surface of the first roller is engageable with an exterior surface of the first fiber, and rotation of the first wheel about the lateral axis causes translational movement of the fiber along the longitudinal axis.

34. The applicator of claim 32, wherein the rotation of the first wheel causes translational movement of the fiber along the longitudinal axis, the positioning component further includes a second wheel, and rotation of the second wheel causes rotational movement of the fiber about the longitudinal axis.

35. An applicator including a shaft with a proximal end and a distal end, a first shaft channel and a second shaft channel extending through the shaft, a balloon attached to the distal end of the shaft, and a support attached to the proximal end of the shaft, the support comprising:

a bore having a distal portion engageable with the proximal end of the shaft and a proximal portion defining a first support channel and a second support channel, each of the first and second support channels being aligned with one of the first or second shaft channels when proximal end of the shaft is engaged with the distal portion of the bore;

a first positioning component that is mounted on the support and operable to move a first fiber placed in the first shaft and support channels; and

a second positioning component that is mounted on the support and operable to move a second fiber placed in the second shaft and support channels.

36. The applicator of claim 35, wherein each of the first and second positioning components are operable to cause translational movement of one of the first or second fibers.

37. The applicator of claim 36, wherein:

the first positioning component includes a first wheel coupled to a first roller, an exterior surface of first roller is engageable with the first fiber, and rotation of the first wheel causes translational movement of the fiber, and

the second positioning component includes a second wheel coupled to a second roller, an exterior surface of second roller is engageable with the second fiber, and rotation of the second wheel causes translational movement of the second fiber.

38. The applicator of claim 37, further comprising a third positioning component that is mounted on the support and operable to cause rotational movement of the first fiber.

39. The applicator of claim 38, wherein the third positioning component includes a third wheel coupled to a third roller, an exterior surface of the third roller is engageable with the first fiber, and rotation of the third wheel causes rotational movement of the first fiber.

40. The applicator of claim 39, wherein the first fiber is a viewing fiber and the second fiber is a laser fiber.