Patent US2891056A successfully refreshed from Google Patents.
US4539989A
Expired / Lapsed
US
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Injury-free coupling and decoupling of therapeutic shock waves
Assignee: Dornier Medizintechnik GmbH
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Filing: 1982-11-22
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Granted: 1985-09-10
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Expires: 2002-11-22
Abstract
Abstract An improved instrument for destroying concretions within the body of living tissue, with a focusing chamber which is a part of an ellipsoid of revolution and at one focus of which shock waves are generated by arc discharge, the improvement comprising that a pad (8) filled with degassed water and of which the front and rear sides thereof (10 and 12 respectively) are composed of shape-adapting, acoustically matched thin foils, is located between the liquid-filled focusing chamber (16) and the coupling site (6) to the body (2), the pad permitting simultaneous introduction of X-rays or ultrasonic waves to locate the concretion and to monitor the success in comminuting, and a second water pad (24) similar to the first pad is located at the body decoupling site and encloses the body over a large area, the rear side thereof being fastened by means of a damping or diffusely reflecting layer (26), for instance foam rubber, to a rigid dish (28) composed of one or more parts.
Inventors
- 👤 Bernd Forssmann
- 👤 Wolfgang Hepp
- 👤 Guenter Hoff
- 👤 Christian Chaussy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:26
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/22; A61B17/225; A61B17/2251; A61B6/00; A61B6/12; G; G10; G10K; G10K11/00; G10K11/02; A61B2017/00831; A61B2017/00902; A61B2017/00924; A61B2017/2253
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
210 words
In an instrument system for destroying concretions in a body of living tissue, having a liquid filled focusing chamber including a focusing surface which is a part of an ellipsoid of rotation, there being a shock wave generator in the focusing chamber at one focus thereof for generating shock waves by means of arc discharges, a first pad filled with degassed water and provided for being located between the liquid-filled focusing chamber and a coupling site of the body, the improvement of the system comprising, the front and rear sides of said first pad being composed of shape-adapting, acoustically matched thin foils, the first pad, because of its flexibility, its thinness and the use of transmitting materials, permitting simultaneous introduction of X-rays of ultrasonic waves for locating the concretions and to monitor the success in comminution; a second liquid filled pad similar to the first pad and provided for being located at a body site for acoustically decoupling from the body shock waves having been transmitted through the body, said second pad having a surface area for enclosing a large area of the body and having a rear side; a rigid dish; and a damping or diffusely reflecting layer fastening the rear side of said second pad to said dish.
Claim 2
Dependent Claim
210 words
In an instrument system for destroying concretions in a body of living tissue, having a liquid filled focusing chamber including a focusing surface which is a part of an ellipsoid of rotation, there being a shock wave generator in the focusing chamber at one focus thereof for generating shock waves by means of arc discharges, a first pad filled with degassed water and provided for being located between the liquid-filled focusing chamber and a coupling site of the body, the improvement of the system comprising, the front and rear sides of said first pad being composed of shape-adapting, acoustically matched thin foils, the first pad, because of its flexibility, its thinness and the use of transmitting materials, permitting simultaneous introduction of X-rays of ultrasonic waves for locating the concretions and to monitor the success in comminution; a second liquid filled pad similar to the first pad and provided for being located at a body site for acoustically decoupling from the body shock waves having been transmitted through the body, said second pad having a surface area for enclosing a large area of the body and having a rear side; a rigid dish; and a damping or diffusely reflecting layer fastening the rear side of said second pad to said dish.
Claim 3
Dependent Claim
21 words
An instrument system according to claim 1, in which the rigid dish comprises an integrated input screen of a locating system.
Claim 4
Dependent Claim
27 words
An instrument system according to claim 1 the first pad having a window for monitoring, centering and air gap-free abutting of its front side to the body.
Claim 5
Dependent Claim
33 words
An instrument system according to claim 1 there being an acoustically transmitting paste on the first and second pads so as to exclude air gaps where the pads are placed against the body.
Claim 6
Dependent Claim
212 words
In an instrument system for destroying concretions in a body of living tissue, having a liquid filled focusing chamber including a focusing surface which is a part of an ellipsoid of rotation, there being a shock wave generator in the focusing chamber at one focus thereof for generating shock waves by means of arc discharges, the improvement of the system comprising a first pad filled with a highly viscous liquid and provided for being located between the liquid-filled focusing chamber and a coupling site of the body, the front and rear sides of said first pad being composed of shape-adapting, acoustically matched thin foils, the first pad, because of its flexibility, its thinness and the use of transmitting materials, permitting simultaneous introduction of X-rays or ultrasonic waves for locating the concretions and to monitor the success in comminution; a second pad also filled with a highly viscous liquid, and provided for being located at a body site for acoustically decoupling from the body shock waves having been transmitted through the body, said second pad having a surface area for enclosing a large area of the body and having a rear site; a rigid dish; and a damping or diffusely reflecting layer fastening the rear side of said second pad to said dish.
Claim 7
Dependent Claim
212 words
In an instrument system for destroying concretions in a body of living tissue, having a liquid filled focusing chamber including a focusing surface which is a part of an ellipsoid of rotation, there being a shock wave generator in the focusing chamber at one focus thereof for generating shock waves by means of arc discharges, the improvement of the system comprising a first pad filled with a highly viscous liquid and provided for being located between the liquid-filled focusing chamber and a coupling site of the body, the front and rear sides of said first pad being composed of shape-adapting, acoustically matched thin foils, the first pad, because of its flexibility, its thinness and the use of transmitting materials, permitting simultaneous introduction of X-rays or ultrasonic waves for locating the concretions and to monitor the success in comminution; a second pad also filled with a highly viscous liquid, and provided for being located at a body site for acoustically decoupling from the body shock waves having been transmitted through the body, said second pad having a surface area for enclosing a large area of the body and having a rear site; a rigid dish; and a damping or diffusely reflecting layer fastening the rear side of said second pad to said dish.
Claim 8
Dependent Claim
210 words
In an instrument system for destroying concretions in a body of living tissue, having a liquid filled focusing chamber including a focusing surface which is a part of an ellipsoid of rotation, there being a shock wave generator in the focusing chamber at one focus thereof for generating shock waves by means of arc discharges, the improvement of the system comprising a first pad filled with a rubbery substance and provided for being located between the liquid-filled focusing chamber and a coupling site of the body, the front and rear sides of said first pad being composed of shape-adapting, acoustically matched thin foils, the first pad, because of its flexibility, its thinness and the use of transmitting materials, permitting simultaneous introduction of X-rays or ultrasonic waves for locating the concretions and to monitor the success in comminution; a second pad also filled with a rubbery substance, and provided for being located at a body site for acoustically decoupling from the body shock waves having been transmitted through the body, said second pad having a surface area for enclosing a large area of the body and having a rear site; a rigid dish; and a damping or diffusely reflecting layer fastening the rear side of said second pad to said dish.
Claim 9
Dependent Claim
210 words
In an instrument system for destroying concretions in a body of living tissue, having a liquid filled focusing chamber including a focusing surface which is a part of an ellipsoid of rotation, there being a shock wave generator in the focusing chamber at one focus thereof for generating shock waves by means of arc discharges, the improvement of the system comprising a first pad filled with a rubbery substance and provided for being located between the liquid-filled focusing chamber and a coupling site of the body, the front and rear sides of said first pad being composed of shape-adapting, acoustically matched thin foils, the first pad, because of its flexibility, its thinness and the use of transmitting materials, permitting simultaneous introduction of X-rays or ultrasonic waves for locating the concretions and to monitor the success in comminution; a second pad also filled with a rubbery substance, and provided for being located at a body site for acoustically decoupling from the body shock waves having been transmitted through the body, said second pad having a surface area for enclosing a large area of the body and having a rear site; a rigid dish; and a damping or diffusely reflecting layer fastening the rear side of said second pad to said dish.
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) | 1988-09-09 | 1989-03-11 | 1989-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-09 | 1993-03-11 | 1993-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-09 | 1997-03-11 | 1997-09-10 | $7700.00 | Window Closed / Lapsed |