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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
Application number
NO91913531A
Other languages
Norwegian (no)
Other versions
NO913531D0 (en
Inventor
Hans Wiksell
Original Assignee
Hans Wiksell
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from SE8900994A external-priority patent/SE465552B/en
Application filed by Hans Wiksell filed Critical Hans Wiksell
Publication of NO913531D0 publication Critical patent/NO913531D0/en
Publication of NO913531L publication Critical patent/NO913531L/en

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  • 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.

NO91913531A 1989-03-21 1991-09-09 APPARATUS FOR AA CRUSH CONCRETE. NO913531L (en)

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
NO913531D0 NO913531D0 (en) 1991-09-09
NO913531L true NO913531L (en) 1991-09-09

Family

ID=26660460

Family Applications (1)

Application Number Title Priority Date Filing Date
NO91913531A NO913531L (en) 1989-03-21 1991-09-09 APPARATUS FOR AA CRUSH CONCRETE.

Country Status (1)

Country Link
NO (1) NO913531L (en)

Also Published As

Publication number Publication date
NO913531D0 (en) 1991-09-09

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