US6282442B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-fit suction irrigation hand piece
Assignee: SURGICAL LASER TECHNOLOGIES Inc
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Filing: 1999-09-09
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Granted: 2001-08-28
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Expires: 2019-09-09
Abstract
Abstract A disposable hand piece providing irrigation and aspiration capability to a surgical field can adaptably hold within itself endoscopes of different manufacturers. Running through the hand piece is a bore; attached at the distal end of the hand piece is a reusable sheath. The tubular shaft of an endoscope is inserted into the bore of the hand piece and the reusable sheath. A first collet at the proximal side of the hand piece securely holds the endoscope by adjusting to the outer diameter of the tubular shaft of the endoscope. A second collet at the distal side of the hand piece holds the reusable sheath in a selected linear extension. The collets, however, permit the tubular shaft and the reusable sheath to be rotated in place and thus adjust the view of the surgical field. An annular space is maintained between the tubular shaft and the reusable sheath so as to provide a channel for irrigation and aspiration. Further aspiration capability is provided by a separate suction device. A method of attaching an endoscope and sheath to the hand piece and using the apparatus is also disclosed.
Inventors
- 👤 Mark A. DeStefano
- 👤 Stewart I. Jaffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:06
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/12; A61B1/126; A61M; A61M1/00; A61M1/71; A61M1/77; A61M1/774; A61B18/00; A61M1/74; A61M1/741; A61M1/7413; A61M1/772
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
52 words
A surgical hand piece for providing irrigation and aspiration to a surgical field for use in conjunction with a variety of endoscopes having shafts of different outside diameters, the hand piece comprising: a through bore for receiving an endoscope; means for securing endoscope shafts of varying outside diameters to the hand piece.
Claim 2
Dependent Claim
52 words
A surgical hand piece for providing irrigation and aspiration to a surgical field for use in conjunction with a variety of endoscopes having shafts of different outside diameters, the hand piece comprising: a through bore for receiving an endoscope; means for securing endoscope shafts of varying outside diameters to the hand piece.
Claim 3
Dependent Claim
110 words
A surgical hand piece as recited in claim 1 , wherein the means for securing the endoscope shafts to the hand piece comprises: a compression fitting having a proximal end and a distal end, an outer diameter that increases from the proximal end to a center portion and then decreases from the center portion to the distal end, and a central longitudinal bore for receiving an endoscope shaft; and a locking nut having a longitudinal bore of a diameter greater than the outer diameter of the compression fitting at the proximal end of the fitting, the locking nut receiving the compression fitting and the through bore receiving the locking nut.
Claim 4
Dependent Claim
25 words
A surgical hand piece as recited in claim 2 , wherein the compression fitting includes a longitudinal slit along the entire length of the fitting.
Claim 5
Dependent Claim
49 words
A surgical hand piece for providing irrigation and aspiration to a surgical field for use in conjunction with a variety of endoscopes, the hand piece comprising: a through bore for receiving an endoscope; means for securing a sheath to the hand piece at a distal opening of the bore.
Claim 6
Dependent Claim
49 words
A surgical hand piece for providing irrigation and aspiration to a surgical field for use in conjunction with a variety of endoscopes, the hand piece comprising: a through bore for receiving an endoscope; means for securing a sheath to the hand piece at a distal opening of the bore.
Claim 7
Dependent Claim
111 words
A surgical hand piece as recited in claim 4 , wherein the means for securing the sheath to the hand piece comprises: an attachment fitting received by a distal opening of the hand piece bore, having a proximal stem including a bore of a diameter greater than an outer diameter of the sheath; a compression fitting having an inner diameter greater than the outer diameter of the sheath and an outer diameter that increases from a distal end to a proximal end; and a locking nut having an inner diameter increase from a distal end to a proximal end and receives the compression fitting and is received by the attachment fitting.
Claim 8
Dependent Claim
25 words
A surgical hand piece as recited in claim 5 , wherein the compression fitting includes a longitudinal slit for the entire length of the fitting.
Claim 9
Dependent Claim
25 words
The hand piece as recited in claim 4 , further comprising means to vary the length by which said sheath extends from said hand piece.
Claim 10
Dependent Claim
31 words
The hand piece as recited in claim 4 , further comprising means formed on the distal end of said sheath for providing mechanical force upon tissue being examined or treated surgically.
Claim 11
Dependent Claim
20 words
The hand piece as recited in claim 4 , further comprising means to coagulate tissue being examined or treated surgically.
Claim 12
Dependent Claim
18 words
The hand piece as recited in claim 9 , wherein the means to coagulate tissue is electric energy.
Claim 13
Dependent Claim
18 words
The hand piece as recited in claim 9 , wherein the means to coagulate tissue is laser energy.
Claim 14
Dependent Claim
18 words
The hand piece as recited in claim 9 , wherein the means to coagulate tissue is warmed liquid.
Claim 15
Dependent Claim
20 words
The hand piece as recited in claim 4 , further comprising means for delivering a drug to tissue being examined.
Claim 16
Dependent Claim
22 words
The hand piece as recited in claim 4 , further comprising means for providing an irrigant under pressure to a surgical site.
Claim 17
Dependent Claim
18 words
The hand piece as recited in claim 4 , further comprising means for providing real time sensing capability.
Claim 18
Dependent Claim
27 words
The hand piece as recited in claim 4 , wherein the hand piece and associated elements are constructed of materials that are compatible with magnetic resonance imaging.
Claim 19
Independent Claim
124 words
A method of adjustably attaching a sheath and endoscope to a hand piece which provides aspiration and/or irrigation, the hand piece comprising means, used in conjunction with the sheath, for coupling said endoscope to said hand piece, means for coupling said sheath to the hand piece, the hand piece for use in conjunction with a variety of endoscopes, said method comprising the following steps: inserting a selected one of said variety of endoscopes into said hand piece; adjusting said endoscope coupling means to hold said endoscope securely to the hand piece yet permit rotation of said endoscope; inserting the sheath into said hand piece; adjusting said sheath coupling means to hold said sheath securely to the hand piece yet permit rotation of said sheath.
Claim 20
Independent Claim
124 words
A method of adjustably attaching a sheath and endoscope to a hand piece which provides aspiration and/or irrigation, the hand piece comprising means, used in conjunction with the sheath, for coupling said endoscope to said hand piece, means for coupling said sheath to the hand piece, the hand piece for use in conjunction with a variety of endoscopes, said method comprising the following steps: inserting a selected one of said variety of endoscopes into said hand piece; adjusting said endoscope coupling means to hold said endoscope securely to the hand piece yet permit rotation of said endoscope; inserting the sheath into said hand piece; adjusting said sheath coupling means to hold said sheath securely to the hand piece yet permit rotation of said sheath.
Claim 21
Dependent Claim
29 words
The method of claim 17 , further including the step of: adjusting said sheath coupling means to vary the length by which said sheath extends from said hand piece.
Claim 22
Dependent Claim
45 words
The method of claim 18 , further including the steps of: adjusting said endoscope coupling means and said endoscope such that said sheath extends further from said hand piece than said endoscope enabling mechanical force to be exerted upon tissue being treated by said sheath.
Claim 23
Dependent Claim
50 words
The method of claim 18 , further including the steps of: adjusting said endoscope coupling means and said endoscope such that said sheath extends further from said hand piece than said endoscope enabling tissue being treated to be coagulated by coagulating means formed on a distal portion of the sheath.
References Cited (Backward Citations)
US4149315A
Cited
US4579230A
Cited
US4744360A
Cited
US4776840A
Cited
US4904238A
Cited
US5170774A
Cited
US5195958A
Cited
US5662647A
Cited
US5607391A
Cited
US5551448A
Cited
US5322503A
Cited
US5197963A
Cited
US5333603A
Cited
US5611813A
Cited
US5620459A
Cited
US5310406A
Cited
US5289555A
Cited
US5312332A
Cited
US5554112A
Cited
US5348555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-08-27 | 2005-02-26 | 2005-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-08-27 | 2009-02-26 | 2009-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-08-27 | 2013-02-26 | 2013-08-28 | $7700.00 | Window Closed / Lapsed |