NO913531L - APPARATUS FOR AA CRUSH CONCRETE. - Google Patents
APPARATUS FOR AA CRUSH CONCRETE.Info
- Publication number
- NO913531L NO913531L NO91913531A NO913531A NO913531L NO 913531 L NO913531 L NO 913531L NO 91913531 A NO91913531 A NO 91913531A NO 913531 A NO913531 A NO 913531A NO 913531 L NO913531 L NO 913531L
- Authority
- NO
- Norway
- Prior art keywords
- reflector
- ellipsoid
- bellows
- patient
- shaped
- Prior art date
Links
Landscapes
- Surgical Instruments (AREA)
- Disintegrating Or Milling (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
Et apparat til å knuse konkrementer i en pasients legeme omfatter et væske-fylt fokuseringskammer dannet av en reflektor (2) med en innervegg som har form av en åpen rotasjonsellipsoide som har sin åpne ende lukket med en belg (4,6) beregnet til å plasseres mot pasientens legeme. Et gnistgap (8) er plassert ved det ferste fokus (F) for den ellipsoidformede reflektor for å generere en sjokkbølge innrettet til å fokuseres ved det andre fokalområdet (F) for ellipsoiden. Reflektorens veggtykkelse er formet slik at resonans for balger reflektert på innsiden og utsiden av den ellipsoidformede reflektor, skjer i det nevnte andre fokalområdet ved en forutbestemt frekvens.An apparatus for crushing concretions in a patient's body comprises a liquid-filled focusing chamber formed by a reflector (2) having an inner wall in the form of an open rotational ellipsoid having its open end closed with a bellows (4,6) intended to placed against the patient's body. A spark gap (8) is located at the first focus (F) of the ellipsoidal reflector to generate a shock wave adapted to be focused at the second focal region (F) of the ellipsoid. The wall thickness of the reflector is shaped so that resonance for bellows reflected on the inside and outside of the ellipsoid-shaped reflector, takes place in the said second focal area at a predetermined frequency.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8900994A SE465552B (en) | 1989-03-21 | 1989-03-21 | DEVICE FOR SUBDIVISION OF CONCRETE IN THE BODY OF A PATIENT |
PCT/SE1990/000181 WO1990011051A1 (en) | 1989-03-21 | 1990-03-21 | Apparatus for comminuting concretions in the body of a patient |
Publications (2)
Publication Number | Publication Date |
---|---|
NO913531L true NO913531L (en) | 1991-09-09 |
NO913531D0 NO913531D0 (en) | 1991-09-09 |
Family
ID=26660460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO913531A NO913531D0 (en) | 1989-03-21 | 1991-09-09 | APPARATUS FOR AA CRUSH CONCRETE. |
Country Status (1)
Country | Link |
---|---|
NO (1) | NO913531D0 (en) |
-
1991
- 1991-09-09 NO NO913531A patent/NO913531D0/en unknown
Also Published As
Publication number | Publication date |
---|---|
NO913531D0 (en) | 1991-09-09 |
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