US4878487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminated tissue manipulator for ophthalmic surgery
Assignee: TREK ACQUISITION CORP A PA CORP
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Filing: 1988-05-26
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Granted: 1989-11-07
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Expires: 2008-05-26
Abstract
Abstract The illuminated tissue manipulator includes a handpiece and an elongated rigid probe including a tubular body having an outside dimension suitable for insertion through an opening in a patient's eye and terminating in a forward edge extending around a substantial portion of the outer periphery generally perpendicular to the longitudinal axis of the probe body. The probe body has an integral, narrow tissue manipulating tool which extends longitudinally and outwardly beyond such forward edge. An elongated fiber optic light-conducting member extends through the handpiece and the probe body. One end of the light-conducting member extends in a plane generally perpendicular to the longitudinal axis of the probe body and is disposed adjacent the forward edge of the probe body and the other end is remote from the handpiece and includes an optical connector which is connected to a light source. The tool portion has a rounded tip and can be straight, or the forward end portion including the tip bent inwardly at an acute angle or into a generally J-shape.
Inventors
- 👤 Kevin B. Sinnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:09
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/007; A61F9/00727; A61B; A61B3/00; A61B3/0008
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
197 words
An illuminated instrument for manipulating vitreous tissue and the like comprising a handpiece having first and second ends; an elongated, rigid probe made from a substantially opaque material, extending from said first end of said handpice and including a tubular body having an outside dimension suitable for insertion through an opening in a patient's eye into the vitreous cavity thereof and terminating in a forward edge extending around a substantial portion of the outer periphery of said body and in a plane generally perpendicular to the longitudinal axis of said body, said body including an integral, narrow tissue manipulating tool extending longitudinally and outwardly beyond said forward edge; an elongated fiber optic light-conducting member extending through said handpiece and said body, having a first end disposed adjacent said body forwrad edge and extending in a plane generally perpendicular to the longitudinal axis of said body and having a second end remote from said second end of said hand piece;and means connected to second end of said light-conducting member for receiving light from a light source for intraocular illumination whereby a beam of light from said source is directed outwardly through said forward end of said light-conducting member.
Claim 2
Dependent Claim
197 words
An illuminated instrument for manipulating vitreous tissue and the like comprising a handpiece having first and second ends; an elongated, rigid probe made from a substantially opaque material, extending from said first end of said handpice and including a tubular body having an outside dimension suitable for insertion through an opening in a patient's eye into the vitreous cavity thereof and terminating in a forward edge extending around a substantial portion of the outer periphery of said body and in a plane generally perpendicular to the longitudinal axis of said body, said body including an integral, narrow tissue manipulating tool extending longitudinally and outwardly beyond said forward edge; an elongated fiber optic light-conducting member extending through said handpiece and said body, having a first end disposed adjacent said body forwrad edge and extending in a plane generally perpendicular to the longitudinal axis of said body and having a second end remote from said second end of said hand piece;and means connected to second end of said light-conducting member for receiving light from a light source for intraocular illumination whereby a beam of light from said source is directed outwardly through said forward end of said light-conducting member.
Claim 3
Dependent Claim
18 words
An instrument according to claim 1 wherein the forward end of said tool terminates in a rounded tip.
Claim 4
Dependent Claim
25 words
An instrument according to claim 2 wherein said tool has opposed sides which converge in a direction from said body forward edge toward said tip.
Claim 5
Dependent Claim
33 words
An instrument according to claim 3 wherein a forward end portion of said tool including said tip is bent inwardly toward and at an acute angle to the longitudinal axis of said body.
Claim 6
Dependent Claim
24 words
An instrument according to claim 3 wherein a forward end portion of said tool including said tip is bent inwardly in a generally J-shape.
Claim 7
Dependent Claim
25 words
An instrument according to claim 1 wherein said planes of said body forward edge and said first end of said light-conducting member are generally coincidental.
Claim 8
Dependent Claim
53 words
An instrument according to claim 1 wherein said body and said first end of said light-conducting member initially extend beyond said body forward edge and said tool. is formed by grinding away a portion of the forward end portion of said body and grinding through a forward end portion of said light-conducting member.
References Cited (Backward Citations)
US2186143A
Cited
US4607622A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-06 | 1993-05-08 | 1993-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-06 | 1997-05-08 | 1997-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-06 | 2001-05-08 | 2001-11-07 | $7700.00 | Window Closed / Lapsed |