Patent EP0089131A2 successfully refreshed from Google Patents.
EP0089131A2
Expired / Lapsed
EP
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Low pressure fluid-filled ultrasound transmission chamber
Assignee: Technicare Corp
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Filing: 1983-02-25
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Granted: —
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Expires: 2003-02-25
Abstract
Abstract An adjustable volume fluid reservoir for maintaining a low pressure head in an ultrasound beam transmitting fluid-filled chamber to prevent formation of air bubbles therein.
Inventors
- 👤 Bayard G. Gardineer
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 20:35
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/18; G10K11/26; G10K11/35; G10K11/352; G10K11/02
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
63 words
In an ultrasound beam transmission system, a fluid-filled housing for ultrasound transmission apparatus comprising: a main fluid-filled chamber containing at least a portion of said transmission apparatus; an adjustable volume fluid reservoir connected to said chamber for maintaining a low pressure head in said housing; and a one-way check valve located in a wall of said housing for pressurizing said housing with fluid.
Claim 2
Dependent Claim
63 words
In an ultrasound beam transmission system, a fluid-filled housing for ultrasound transmission apparatus comprising: a main fluid-filled chamber containing at least a portion of said transmission apparatus; an adjustable volume fluid reservoir connected to said chamber for maintaining a low pressure head in said housing; and a one-way check valve located in a wall of said housing for pressurizing said housing with fluid.
Claim 3
Dependent Claim
23 words
An ultrasound apparatus as set forth in Claim 1, wherein said fluid reservoir comprises a second chamber separably connected to said main chamber.
Claim 4
Dependent Claim
21 words
An ultrasound apparatus as set forth in Claim 1 or 2 wherein said pressure head is about 4 - 5 psi.
Claim 5
Dependent Claim
19 words
An ultrasound apparatus as set forth in Claim 1, wherein said fluid reservoir comprises a pressurized fluid-filled rolling diaphragm.
Claim 6
Dependent Claim
43 words
An ultrasound apparatus as set forth in Claim 4 wherein pressure is maintained on said rolling diaphragm by a piston in contact with an outside surface of said diaphragm, said piston being urged against said diaphragm by a spring mounted to the housing.
Claim 7
Dependent Claim
44 words
An ultrasound apparatus as set forth in Claim 4 or 5 wherein the pressure on said rolling diaphragm may be increased by a turn screw knob and a piston, wherein said turn screw knob advances said piston against the outside surface of the diaphragm.
Claim 8
Dependent Claim
39 words
or 3 7. An ultrasound apparatus as in Claim 2/ further comprising an existing fluid reservoir coupled to said chamber and said fluid reservoir, for increasing the effective volume of said fluid reservoir beyond that of the second chamber.
Claim 9
Dependent Claim
31 words
Method of preventing air bubble formation in an ultrasonic bean transmitting fluid-filled chamber to prevent air bubble formation therein, said method comprising maintaining a low pressure head in the fluid-filled chamber.
Claim 10
Dependent Claim
31 words
Method of preventing air bubble formation in an ultrasonic bean transmitting fluid-filled chamber to prevent air bubble formation therein, said method comprising maintaining a low pressure head in the fluid-filled chamber.
Claim 11
Dependent Claim
22 words
A method as in Claim 8 wherein said low pressure head is maintained by adjusting the effective volume of the fluid-filled chamber.
Claim 12
Dependent Claim
27 words
A method as in Claim 8 wherein the low pressure head is maintained by adjusting the volume of a reservoir of additional fluid connected to said chamber.
Claim 13
Dependent Claim
19 words
A method as in Claim 9 further comprising coupling existing fluid reservoirs to said chamber and said fluid reservoir.
Claim 14
Dependent Claim
42 words
An improved ultrasound beam transmitting fluid-filled chamber as in any one of claims 1 to 7, further including means connected with said housing for expelling air bubbles from said chamber, said means comprising an opening in said chamber with a removable seal.
References Cited (Backward Citations)
No citation records indexed.
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