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Dive into the research topics where Alexander Shkolnik is active.

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Featured researches published by Alexander Shkolnik.


Journal of the Acoustical Society of America | 1990

Vibrational method for accelerating passage of stones from ureter

German Borodulin; Alexander Shkolnik; Maxim Persidsky; Joachim W. Thuroff

A vibrational method and apparatus for accelerating and increasing in efficiency of passage of stones from the ureter comprises introducing into the ureter (U) of a catheter (10) with a vibrating head (12) which imparts radial oscillations to the walls of the ureter at a distance of 0 to 30 mm from the areas where the stone (S) is lodged. Catheter (10) is a flexible tube which has a head (12) which is expandable radially and axially by means of an oscillating element (24) driven from a reciprocating vibrational drive (26). Drive (26) has a tapering end (32) which, during its reciprocations, causes expansions and constrictions of the resilient head, due to its interaction with inner projections (18) and (20). The apparatus is universal in its application and can be used without any changes for pushing the stone, located in the upper part of the ureter, back to the kidney, where the stone can be more readily disintegrated by means of subsequent extracorporeal shock wave lithotripsy. By replacing some parts, the apparatus can be converted into an ultrasonic device for accelerating passage of stones or into an ultrasonic device for destruction of stones in the ureter.


Journal of the Acoustical Society of America | 1990

Vibratory treatment method and apparatus

German Borodulin; Maxim Persidsky; Alexander Shkolnik

A method and apparatus for treating internal muscle and connective tissue disorders is disclosed. The method includes the steps of inserting a vibration source into a body cavity and applying vibratory massage in the form of expansions and contractions of the body cavity at a predetermined frequency. The apparatus includes a probe shaped for insertion into a body cavity, an actuator for causing the probe to expand and contract, and a mechanism for adjusting the frequency with which the probe expands and contracts.


Archive | 1987

Implantable hydraulic penile erector

Joachim W. Thuroff; German Borodulin; Alexander Shkolnik


Archive | 2000

Vaginal speculum with adjustable blades

German Borodulin; Ananias C. Diokno; Alexander Shkolnik


Archive | 2001

Disconnectable vaginal speculum with removeable blades

Ananias C. Diokno; German Borodulin; Alexander Shkolnik


Archive | 1997

Universal mechanical dilator combined with massaging action

German Borodulin; Alexander Shkolnik; Maxim Persidsky


Archive | 1987

Vibrational apparatus for accelerating passage of stones from ureter

German Borodulin; Alexander Shkolnik; Maxim Persidsky; Joachim W. Thuroff


Archive | 1991

Vibratory method and instrument for extracting stones from urinary tract

German Borodulin; Maxim Persidsky; Alexander Shkolnik; Marshall Stoller


Archive | 2002

Combination of a vaginal speculum with a single-lens colposcope

German Borodulin; Ananias C. Diokno; Alexander Shkolnik


Archive | 1985

Opener and stopper for crimped and threaded bottle caps

German Borodulin; Alexander Shkolnik; Maxim Persidsky

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