US5070861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray sighting for aiming lithotripter
Assignee: Dornier Medizintechnik GmbH
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Filing: 1990-06-11
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Granted: 1991-12-10
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Expires: 2010-06-11
Abstract
Abstract A lithotripter has a source for focussed shockwaves and an X-ray device which is mounted for relative displacement and positioning in relation to that source of shockwaves; an improvement includes a device for aiming and sighting in cooperation with the X-ray equipment that includes a carrier element defining a first pair of X-ray contrasting aligned reference points and two additional X-ray contrasting reference points, on a second line and intersecting the first line at a point of intersection at about 15 to 45 degrees; and that aiming and sighting device is mounted in relation to said source of focussed shockwaves such that the point of intersection coincide with a focal point of the shockwave source.
Inventors
- 👤 Wolfram Einars
- 👤 Klaus Boehm
- 👤 Bernhard Herrmann
- 👤 Juergen Neumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:52
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/22; A61B17/225; A61B17/2255; A61B6/00; A61B6/12; A61B2017/00831; A61B2017/00902; A61B90/00; A61B90/39
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
137 words
A lithotripter having a source for focussing shockwaves towards a focal point, further having an X-ray device mounted on a carrier, said carrier being oriented towards the focal point of the source, for relative displacement and for positioning in different positions relative to said focal point, the lithotripter further including a device for aiming and sighting in cooperation with the X-ray device comprising: a carrier element defining a first pair of X-ray contrasting reference points, said two reference points defining a first line accordingly and further including a second pair of X-ray contrasting reference points, arranged on a second line intersecting said first line in a point of intersection; and means for mounting said carrier element on said source of focused shockwaves such that said point of intersection coincides with said focal point of said shockwave source.
Claim 2
Dependent Claim
137 words
A lithotripter having a source for focussing shockwaves towards a focal point, further having an X-ray device mounted on a carrier, said carrier being oriented towards the focal point of the source, for relative displacement and for positioning in different positions relative to said focal point, the lithotripter further including a device for aiming and sighting in cooperation with the X-ray device comprising: a carrier element defining a first pair of X-ray contrasting reference points, said two reference points defining a first line accordingly and further including a second pair of X-ray contrasting reference points, arranged on a second line intersecting said first line in a point of intersection; and means for mounting said carrier element on said source of focused shockwaves such that said point of intersection coincides with said focal point of said shockwave source.
Claim 3
Dependent Claim
19 words
A lithotripter as in claim 1, wherein said two lines intersect at an angle between 15 and 45 degrees.
Claim 4
Dependent Claim
13 words
A lithotripter as in claim 2, wherein said angle is about 30 degrees.
Claim 5
Dependent Claim
23 words
A lithotripter as in claim 1, wherein the distance between the two reference points of each pair is between 5 and 20 cm.
Claim 6
Dependent Claim
13 words
A lithotripter as in claim 4, wherein said distance is about 10 cm.
Claim 7
Dependent Claim
24 words
A lithotripter as in claim 1, wherein said reference points comprise contrasting geometric configurations selected from the group consisting of square, triangle and circle.
Claim 8
Dependent Claim
16 words
A lithotripter as in claim 6, wherein said geometric configurations further comprising X-ray contrasting crosshair lines.
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) | 1994-12-09 | 1995-06-10 | 1995-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-09 | 1999-06-10 | 1999-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-09 | 2003-06-10 | 2003-12-10 | $7700.00 | Window Closed / Lapsed |