US3861391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for disintegration of urinary calculi
Assignee: Valeo Engine Cooling Inc
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Filing: 1974-03-20
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Granted: 1975-01-21
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Expires: 1994-03-20
Abstract
Abstract A method and apparatus are provided for disintegrating urinary calculi by subjecting the urinary calculi to ultrasonic forces transmitted transversely of a wave guide in a catheter.
Inventors
- 👤 John N Antonevich
- 👤 Roger Goodfriend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:19
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/22; A61B17/22004; A61B17/22012; A61B17/32; A61B17/320068; A61B2017/320072; A61B2017/320073; A61B18/00; A61B2018/00982
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
116 words
An apparatus for fragmenting and drilling urinary calculi comprising a catheter adapted to be inserted into a ureter to abut the calculi to be removed, a coupling member extending lengthwise of the lumen of said catheter and having a diameter less than the diameter of said lumen whereby said coupling member may vibrate transversely within the catheter, ultrasonic means acting on the coupling member to cause transverse vibration of the end thereof adjacent the calculi, and means engaging the end of the catheter remote from the calculi whereby said end is immobilized relatively to the ultrasonic means and the ultrasonic means is mounted on a slide movable at a controlled rate to and from said catheter.
Claim 2
Independent Claim
116 words
An apparatus for fragmenting and drilling urinary calculi comprising a catheter adapted to be inserted into a ureter to abut the calculi to be removed, a coupling member extending lengthwise of the lumen of said catheter and having a diameter less than the diameter of said lumen whereby said coupling member may vibrate transversely within the catheter, ultrasonic means acting on the coupling member to cause transverse vibration of the end thereof adjacent the calculi, and means engaging the end of the catheter remote from the calculi whereby said end is immobilized relatively to the ultrasonic means and the ultrasonic means is mounted on a slide movable at a controlled rate to and from said catheter.
Claim 3
Dependent Claim
44 words
An apparatus as claimed in claim 1 wherein the ultrasonic means is mounted on a slide and micrometer feed means act on the slide to provide a controlled rate of movement of the ultrasonic means toward and away from the end of the catheter.
Claim 4
Dependent Claim
34 words
An apparatus as claimed in claim 2 wherein the end of the said end of the catheter is mounted in a clamp on a tilting base carrying the slide and ultrasonic means mounted thereon.
Claim 5
Dependent Claim
14 words
An apparatus as claimed in claim 3 wherein the ultrasonic means is a transducer.
Claim 6
Dependent Claim
20 words
An apparatus as claimed in claim 1 wherein the coupling member is less than two-thirds the diameter of the lumen.
Claim 7
Dependent Claim
14 words
An apparatus as claimed in claim 1 wherein the coupling member is a wire.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |