US4805628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasound contrast media for medically implantable and insertable devices
Assignee: INDIANPOLIS CENTER FOR ADVANCED RESEARCH Inc
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Filing: 1982-12-06
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Granted: 1989-02-21
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Expires: 2002-12-06
Abstract
Abstract A method is provided for enhancing ultrasound detection of implantable or insertable devices which can be placed in bodies. The method includes the steps of providing a space in the device having a substantially gas-impermeable wall, and filling the space with a gas. A medically implantable or insertable device having an enhanced ultrasound detectability is also provided. The device includes a substantially gas-impermeable portion which defines a space. The space is filled with a gas or mixture of gases to enhance ultrasound detection, and determination of the location of the device.
Inventors
- 👤 Francis J. Fry
- 👤 Bryan T. Burney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:22
CPC Classifications
A; A61; A61B; A61B8/00; A61B8/08; A61B8/0833; A61B8/0841; A61B90/00; A61B90/39; A61F; A61F2/00; A61F6/00; A61F6/06; A61F6/14; A61F6/142; A61F6/144; A61L; A61L31/00; A61L31/14; A61L31/18; A61B2090/3925; A61F2250/00; A61F2250/0058; A61F2250/0096; A61F2250/0098
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
44 words
A method for enhancing ultrasound detection of an implantable or insertable device which can be placed in a body comprising the steps of providing a space in the device having a substantially gas-impermeable wall, and placing a sheet-like inclusion of gas within the space.
Claim 2
Independent Claim
44 words
A method for enhancing ultrasound detection of an implantable or insertable device which can be placed in a body comprising the steps of providing a space in the device having a substantially gas-impermeable wall, and placing a sheet-like inclusion of gas within the space.
Claim 3
Dependent Claim
48 words
An ultrasonically detectable device for relatively permanent or long-term insertion or implantation into a body comprising means for defining a space for receiving and substantially permanently retaining a gas in the form of a plurality of gaseous bubbles, and a plurality of gaseous bubbles inserted into the space.
Claim 4
Dependent Claim
48 words
An ultrasonically detectable device for relatively permanent or long-term insertion or implantation into a body comprising means for defining a space for receiving and substantially permanently retaining a gas in the form of a plurality of gaseous bubbles, and a plurality of gaseous bubbles inserted into the space.
Claim 5
Dependent Claim
48 words
An ultrasonically detectable device for relatively permanent or long-term insertion or implantation into a body comprising means for defining a space for receiving and substantially permanently retaining a gas in the form of a sheet, and a gas in the form of a sheet inserted into the space.
Claim 6
Dependent Claim
48 words
An ultrasonically detectable device for relatively permanent or long-term insertion or implantation into a body comprising means for defining a space for receiving and substantially permanently retaining a gas in the form of a sheet, and a gas in the form of a sheet inserted into the space.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-21 | 1992-08-22 | 1993-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-21 | 1996-08-22 | 1997-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-21 | 2000-08-22 | 2001-02-21 | $7700.00 | Window Closed / Lapsed |