Patent US3823717A successfully refreshed from Google Patents.
US3823717A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for disintegrating concretions in body cavities of living organisms by means of an ultrasonic probe
Assignee: Individual
•
Filing: 1973-04-16
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Granted: 1974-07-16
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Expires: 1993-04-16
Abstract
Abstract An ultrasonic probe for disintegrating concretions e.g. urinary calculus, in body cavities comprises a probe tube, ultrasonically vibrated in a longitudinal direction, having at one end a tubular impact element loosely coupled to it in the direction of vibration. The impact element is provided on its free end with a cutting edge, preferably formed by a plurality of teeth. The disintegrated concretions are continuously evacuated through the tubular impact element and the tubular probe.
Inventors
- 👤 R Pohlman
- 👤 M Cichos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:10
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/22; A61B17/22004; A61B17/22012; B; B02; B02C; B02C19/00; B02C19/18; A61B17/32; A61B17/320068; A61B2017/320072; A61B2017/320073
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
54 words
An apparatus for disintegrating concretions in body cavities in living organisms, comprising a tubular probe adapted to be ultrasonically vibrated longitudinally and a tubular impact element loosely coupled in the direction of vibration to one end of said tubular probe whereby the ultrasonic vibrations transmitted to the impact element are transformed into shock forces.
Claim 2
Independent Claim
54 words
An apparatus for disintegrating concretions in body cavities in living organisms, comprising a tubular probe adapted to be ultrasonically vibrated longitudinally and a tubular impact element loosely coupled in the direction of vibration to one end of said tubular probe whereby the ultrasonic vibrations transmitted to the impact element are transformed into shock forces.
Claim 3
Dependent Claim
25 words
An apparatus as claimed in claim 1, wherein the end of the tubular impact element remote from said coupling is constructed as a cutting edge.
Claim 4
Dependent Claim
18 words
An apparatus as claimed in claim 2, wherein the cutting edge is constituted by a plurality of teeth.
Claim 5
Dependent Claim
27 words
An apparatus as claimed in claim 3, wherein the teeth are of an undercut, trapezoidal construction so that their cutting surfaces are larger than their root surfaces.
Claim 6
Dependent Claim
61 words
An apparatus as claimed in claim 3, wherein the teeth are arranged mutually joggled or twisted so that a line connecting the outer edges of the teeth has a greater diameter than the external diameter of the impact element and a line connecting the inner edges of the teeth has a smaller diameter than the internal diameter of the impact element.
Claim 7
Dependent Claim
30 words
An apparatus as claimed in any of the claim 2, wherein the impact element is guided loosely with slight radial and axial play on the end of the tubular probe.
Claim 8
Dependent Claim
32 words
An apparatus as claimed in claim 6, wherein the impact element is prevented from dropping out of the tubular probe by retaining pins which engage in slots provided in the impact element.
Claim 9
Dependent Claim
23 words
An apparatus as claimed in claim 6, wherein the impact element is loosely supported by a cap sleeve secured to the tubular probe.
Claim 10
Dependent Claim
25 words
An apparatus as claimed in claim 6, wherein the impact element is supported by a helicoidal spring contacTing the tubular probe and the impact element.
Claim 11
Dependent Claim
25 words
An apparatus as claimed in claim 6, wherein the impact element is supported by a resilient tube contacting the tubular probe and the impact element.
Claim 12
Dependent Claim
49 words
An apparatus as claimed in claim 6, wherein those parts of the ultrasonic probe tube and of the impact element where the two components are in mutual contact during their axial movement caused by the ultrasonic vibrations are of rounded tapered construction of at least one of said parts.
Claim 13
Dependent Claim
21 words
An apparatus as claimed in claim 1, wherein the ultrasonic probe tube is adapted to be connected to an exhaustor device.
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) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |