US5993389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Devices for providing acoustic hemostasis
Assignee: THS INTERNATIONAL Inc A DELAWARE Corp
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Filing: 1995-11-22
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Granted: 1999-11-30
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Expires: 2015-11-22
Abstract
Abstract Methods and apparatus for the remote coagulation of blood using high-intensity focused ultrasound (HIFU) are provided. A remote hemostasis method comprises identifying a site of internal bleeding and focusing therapeutic ultrasound energy on the site, the energy being focused through an intervening tissue. An apparatus for producing remote hemostasis comprises a focused therapeutic ultrasound radiating surface and a sensor for identifying a site of internal bleeding, with a registration means coupled to the radiating surface and the sensor to bring a focal target and the bleeding site into alignment. The sensor generally comprises a Doppler imaging display. Hemostasis enhancing agents may be introduced to the site for actuation by the ultrasound energy.
Inventors
- 👤 Edward C. Driscoll, Jr.
- 👤 Lawrence A. Crum
- 👤 Wing K. Law
- 👤 Stan DeMarta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:04
CPC Classifications
A; A61; A61B; A61B8/00; A61B8/06; A61B5/00; A61B5/41; A61B5/414; A61B5/416; A61B8/08; A61B8/12; A61B8/44; A61B8/4444; A61B8/445; A61B8/4461; A61B8/46; A61B8/461; A61B8/467; A61B8/48; A61B8/483; A61B8/485; A61N; A61N7/00; A61N7/02; A61N7/022; A61B17/00; A61B17/00234; A61B2017/00238; A61B2017/00274; A61B17/12; A61B2017/12004; A61B18/00; A61B2018/00315; A61B2018/00547; A61B90/00; A61B90/36; A61B90/37; A61B2090/378; A61B8/42; A61B8/4272; A61B8/4281; A61B8/4405; A61N2007/0056; A61N2007/0065; A61N2007/0078
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
66 words
An apparatus for producing remote hemostasis comprising: a radiating surface which applies focused therapeutic ultrasound energy to a target volume, the target volume being separated from the radiating surface by a therapy depth to produce remote hemostasis; a sensor which identifies a site of internal bleeding; and a registration mechanism coupled to the sensor and the radiating surface to align the target volume and the site.
Claim 2
Independent Claim
66 words
An apparatus for producing remote hemostasis comprising: a radiating surface which applies focused therapeutic ultrasound energy to a target volume, the target volume being separated from the radiating surface by a therapy depth to produce remote hemostasis; a sensor which identifies a site of internal bleeding; and a registration mechanism coupled to the sensor and the radiating surface to align the target volume and the site.
Claim 3
Dependent Claim
21 words
A remote hemostasis apparatus as claimed in claim 1, further comprising a therapy depth varying mechanism coupled to the radiating surface.
Claim 4
Dependent Claim
27 words
A remote hemostasis apparatus as claimed in claim 2, wherein the radiating surface comprises a phased array, and wherein the depth varying mechanism comprises a phase controller.
Claim 5
Dependent Claim
17 words
A remote hemostasis apparatus as claimed in claim 3, wherein the phased array comprises an annular array.
Claim 6
Dependent Claim
18 words
A remote hemostasis apparatus as claimed in claim 1, wherein the sensor comprises a pulsed ultrasound imaging transducer.
Claim 7
Dependent Claim
25 words
A remote hemostasis apparatus as claimed in claim 5, further comprising a display coupled to the imaging transducer for providing Doppler imaging of the site.
Claim 8
Dependent Claim
30 words
A remote hemostasis apparatus as claimed in claim 5, wherein the sensor further comprises a tissue displacement mechanism, the apparatus further comprising a elasticity imaging display coupled to the sensor.
Claim 9
Dependent Claim
25 words
A remote hemostasis apparatus as claimed in claim 1, further comprising a processor coupled to the sensor for isolating a vibrational signal of vascular breaches.
Claim 10
Dependent Claim
22 words
A remote hemostasis apparatus as claimed in claim 1, wherein the sensor comprises a display for providing angiographic imaging of the site.
Claim 11
Dependent Claim
24 words
A remote hemostasis apparatus as claimed in claim 1, wherein the registration mechanism comprises a mechanical linkage between the radiating surface and the sensor.
Claim 12
Dependent Claim
29 words
A remote hemostasis apparatus as claimed in 1, wherein the registration mechanism comprises a position indication system coupled to at least one of the radiating surface and the sensor.
Claim 13
Independent Claim
63 words
An apparatus for producing remote hemostasis comprising: a pulsed ultrasound imaging transducer which identifies a site of internal bleeding; an ultrasound radiating surface which focuses therapeutic energy at a target volume to produce remote hemostasis; and a display coupled to the imaging transducer and to the radiating surface, the display indicating a relative position of the target volume and the internal bleeding site.
Claim 14
Independent Claim
63 words
An apparatus for producing remote hemostasis comprising: a pulsed ultrasound imaging transducer which identifies a site of internal bleeding; an ultrasound radiating surface which focuses therapeutic energy at a target volume to produce remote hemostasis; and a display coupled to the imaging transducer and to the radiating surface, the display indicating a relative position of the target volume and the internal bleeding site.
Claim 15
Dependent Claim
47 words
A remote hemostasis apparatus as claimed in claim 12, wherein the radiating surface comprises a phased array having a selectable therapy depth between the radiating surface and the target volume, and wherein the display indicates any difference in depth between the selected therapy depth and the site.
Claim 16
Dependent Claim
46 words
A remote hemostasis apparatus as claimed in claim 12, further comprising a structure which carries the imaging transducer and the radiating surface, wherein a translation of the structure relative to the site causes the display to indicate repositioning of the site relative to the target volume.
Claim 17
Dependent Claim
20 words
A remote hemostasis apparatus as claimed in claim 12, wherein the display comprises a display for providing Doppler colorflow imaging.
Claim 18
Dependent Claim
20 words
A remote hemostasis apparatus as claimed in claim 15 further comprising means for providing feedback on regions of coagulated blood.
Claim 19
Dependent Claim
27 words
A remote hemostasis apparatus as claimed in claim 12, further comprising a tissue displacement mechanism coupled to the imaging transducer, wherein the display provides an elasticity image.
Claim 20
Dependent Claim
26 words
A remote hemostasis apparatus as claimed in claim 17 further comprising means for providing feedback on both regions of coagulated blood and regions of cauterized tissue.
Claim 21
Dependent Claim
29 words
A remote hemostasis apparatus as claimed in claim 12, further comprising a coagulation memory coupled to the radiating surface and the display so that the display indicates coagulated regions.
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) | 2002-11-29 | 2003-05-31 | 2003-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-11-29 | 2007-05-31 | 2007-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-11-29 | 2011-05-31 | 2011-11-30 | $7700.00 | Window Closed / Lapsed |