Injury-free coupling and decoupling of therapeutic shock waves
First Claim
1. 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.
2 Assignments
0 Petitions
Accused Products
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.
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Citations
6 Claims
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1. 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. - View Dependent Claims (2, 3, 4)
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5. 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;
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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.
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6. 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;
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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.
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Specification