Aspirating handpieces for laser surgical operations

• US 6,120,498 A
• Filed: 03/05/1998
• Issued: 09/19/2000
• Est. Priority Date: 03/05/1998
• Status: Expired due to Term

• Current Assignee: Lumenis Limited (Boston Scientific Corporation)
• Original Assignee: Coherent Inc (Coherent Corp.)
• Inventors: Marcellino, George, Snyder, Robert W., D'Amico, Donald J., Jani, Mahendra G., Yarborough, J. Michael
• Primary Examiner(s): Dvorak, Linda C. M.
• Assistant Examiner(s): YARNELL, BRYAN KEITH
• Application Number:
  US09/035,673
• Time in Patent Office: 929 Days
• Field of Search: 606/2, 606/2.5, 606/4, 606/5, 606/6, 606/7-10, 606/13-16, 606/41, 606/45, 606/49, 607/88, 607/89, 607/92, 607/93, 604/19, 604/20, 604/35
• US Class Current: 606/16
• CPC Class Codes: A61F 2009/0087 Lens
• CPC Class Codes: A61F 2009/00887 Cataract
• CPC Class Codes: A61F 9/00736 Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments A61F9/008 takes precedence
• CPC Class Codes: A61F 9/00802 for photoablation

Abstract

An aspirating handpiece for laser surgical applications, includes an elongated hollow cylindrical probe member (22). A proximal end (24) of the probe member is arranged such that aspiration means can be connected therewith, and a distal end (26) of the probe member has an aperture therein for receiving matter to be aspirated. An elongated optical fiber (50) extends along the probe member with the distal end (59) of the fiber proximate the aperture therein. The proximal end (52) of the fiber is arranged to receive laser radiation. The probe member has an inside diameter progressively increasing from the distal end thereof to the proximal end thereof.

Claims

1. A handpiece for laser surgical applications, the handpiece for delivering laser radiation from a laser to a site for treating biological material at the sites, and connectable with a vacuum pump for aspirating treated material from the site, comprising:

an elongated hollow cylindrical probe member having proximal and distal ends, having an inside diameter progressively increasing from the distal end thereof to the proximal end thereof, and having a groove in an inner wall thereof at the distal end thereof;

the proximal end of said probe member arranged such that the vacuum pump can be connected therewith for providing an aspiration force within said probe member and the distal end of said probe member having an aspiration aperture axially located therein at the distal end thereof for receiving treated material to be aspirated; and

an elongated optical fiber having a proximal and a distal end, the proximal end of said fiber arranged to receive laser radiation from the laser for delivery to the material to be treated, said elongated fiber extending along said probe member on the inside thereof, with the longitudinal axis of said optical fiber laterally displaced from the cylindrical axis of said probe member and with the optical fiber located in said groove at the distal end of said probe member with the distal end of said fiber proximate said aspiration aperture therein.

2. The handpiece of claim 1, wherein said optical fiber is movable with respect to said probe member for selectively positioning the distal end of said fiber relative to the distal end of said probe member.

3. A handpiece for laser surgical applications, the handpiece for delivering laser radiation from a laser to a site for treating biological material at the sites and connectable to a vacuum pump for aspirating treated material from the site, comprising:

an elongated hollow cylindrical probe member having proximal and distal ends and having an inside diameter progressively increasing from the distal end thereof to the proximal end thereof, the proximal end of said probe member arranged such that the vacuum pump can be connected therewith for providing an aspiration force within said probe member and the distal end of said probe member having an axially located aspiration aperture therein for receiving treated material to be aspirated;

an elongated optical fiber having a proximal and a distal end, the proximal end of said fiber arranged to receive laser radiation from the laser for delivery to the material to be treated and said elongated fiber extending along said probe member on the inside thereof, with the longitudinal axis of said optical fiber laterally displaced from the cylindrical axis of said probe member, said optical fiber being located in a groove in an inner wall of said probe member at the distal end thereof; and

wherein said optical fiber is movable with respect to said probe member for selectively positioning the distal end of said fiber relative to said aperture in said probe member.

4. The handpiece of claim 3, wherein said probe member is attached to a cylindrical handpiece body at a first end thereof;

said optical fiber is mounted at the proximal end thereof in a cylindrical connector unit, said connector unit for connecting the fiber to a source of laser radiation, and being slidably located in a socket extending partially into said handpiece body from a second end thereof with said optical fiber extending through a bore extending from said socket through handpiece body at a point on said first end thereof within said probe member; and

conduit extends through said body from said second end thereof to a point on said first end thereof within said probe member, said conduit for connecting said probe member with said aspiration means.

5. The handpiece of claim 4 wherein a slidable gas tight seal is provided between said connecting unit and said socket.

6. The handpiece of claim 4 wherein said connector unit is coaxial with said optical fiber and said socket is arranged such that the longitudinal axis of said optical fiber diverges by a relatively small angle from the longitudinal axis of said probe member toward the distal end thereof, thereby creating pressure between said optical fiber and said groove in said inner wall of said probe member for retaining said optical fiber therein.

7. A handpiece for laser surgical applications, the handpiece for delivering laser radiation from a laser to a site for treating biological material at the sites and connectable to a vacuum pump for aspirating treated material from the site, comprising:

an elongated hollow cylindrical probe member having proximal and distal ends, the proximal end of said probe member arranged such that the vacuum pump can be connected therewith for providing an aspiration force within said probe member, the distal end of said probe member having an aspiration aperture therein, axially located at the distal end thereof for receiving treated material to be aspirated, and the distal end of said probe member having a groove in an inner wall thereof; and

an elongated optical fiber having a proximal and a distal end, the proximal end of said fiber arranged to receive laser radiation from the laser for delivery to the material to be treated and said elongated fiber extending along said probe member on the inside thereof with the distal end of said fiber proximate said aspiration aperture therein and located in said groove in said inner wall thereof, and wherein said optical fiber is movable with respect to said probe-member for selectively positioning the distal end of said fiber relative to said aperture in said probe member.

8. The handpiece of claim 7 wherein said probe member has an inside diameter progressively increasing from the distal end thereof to the proximal end thereof.

9. A handpiece for laser surgical applications, the handpiece for delivering laser radiation from a laser to a site for treating biological material at the site, and connectable with a vacuum pump for aspirating treated material from the site, comprising:

an elongated hollow cylindrical probe member having proximal and distal ends and having a groove in an inner wall thereof at the distal end thereof, the proximal end of said probe member arranged such that the vacuum pump can be connected therewith for providing an aspiration force within said probe member and the distal end of said probe member having an aspiration aperture axially located therein at the distal end thereof for receiving treated material to be aspirated; and

an elongated optical fiber having a proximal and a distal end, the proximal end of said fiber arranged to receive laser radiation from the laser for delivery to the material to be treated, said elongated fiber extending along said probe member on the inside thereof and located in said groove at the distal end of said probe member with the distal end of said fiber proximate said aspiration aperture.