US5374246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for delivering a hemostatic agent to an operating status
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1993-02-04
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Granted: 1994-12-20
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Expires: 2013-02-04
Abstract
Abstract An applicator for applying a hemostatic agent for use in achieving hemostasis in surgery comprises an absorbent material which has an attached removal string and radiopaque localizer, and a mass of hemostatic agent interengaged with the material on at least one side. In the disclosed embodiment, the applicator is used by applying the material and hemostatic agent against an open, broken, bone surface, which is oozing blood. The hemostatic agent on the material is forced into the porous, bleeding bone to stop the bleeding, and the material is then removed and discarded. Hemostatic agents applied in this manner allow hemostasis of various oozing tissues. A device for holding a plurality of applicators is also described. The device is a module constructed to engage with the top edge of a conventional surgical tray.
Inventors
- 👤 Joel W. Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:17
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/56; A61B17/58; A61B17/88; A61F; A61F13/00; A61F13/15; A61F13/36; A61F13/44; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/425; A61B90/00; A61B90/39; A61F2013/00361; A61F2013/00365; A61F2013/00463; A61F2013/00472; A61L2400/00; A61L2400/04; A61L2430/00; A61L2430/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
173 words
A method of delivering a hemostatic agent to an operating situs, comprising: a) providing a mass of hemostatic agent in interengagement with a surface of dry flexible absorbent member remote from said operating situs, said member having interstitial spaces; b) applying said mass of hemostatic agent to a module, said module comprising a base member including a means for engaging said base member with a top edge of a surgical tray, and a ridge integral with said base for receiving said mass of hemostatic agent, said ridge disposed remote from said top edge; c) engaging said module to said top edge; d) applying a liquid to said hemostatic agent and flexible member in an amount sufficient to wet said agent and member; e) removing from said module, said absorbent member interengaged with said hemostatic agent; f) manipulating said flexible absorbent member to press said hemostatic agent into said situs and to absorb body fluids; g) removing said flexible absorbent member from the situs while leaving the hemostatic agent in contact with said situs.
Claim 2
Independent Claim
173 words
A method of delivering a hemostatic agent to an operating situs, comprising: a) providing a mass of hemostatic agent in interengagement with a surface of dry flexible absorbent member remote from said operating situs, said member having interstitial spaces; b) applying said mass of hemostatic agent to a module, said module comprising a base member including a means for engaging said base member with a top edge of a surgical tray, and a ridge integral with said base for receiving said mass of hemostatic agent, said ridge disposed remote from said top edge; c) engaging said module to said top edge; d) applying a liquid to said hemostatic agent and flexible member in an amount sufficient to wet said agent and member; e) removing from said module, said absorbent member interengaged with said hemostatic agent; f) manipulating said flexible absorbent member to press said hemostatic agent into said situs and to absorb body fluids; g) removing said flexible absorbent member from the situs while leaving the hemostatic agent in contact with said situs.
Claim 3
Dependent Claim
27 words
A method as set forth in claim 1, wherein the hemostatic agent is selected from the group consisting of bone wax, absorbable gelatin, collagen and oxidized cellulose.
Claim 4
Dependent Claim
63 words
A method as set forth in claim 1, wherein said hemostatic agent is provided to said flexible absorbent member by applying said agent in fluid form to a point below the surface of said member so that the fluid hemostatic agent interengages the interstices of said absorbent member at one surface of the member and projects outwardly of the member on one side.
Claim 5
Independent Claim
86 words
A device for delivering a solid hemostatic agent to an operating situs, comprising: a base member having a first surface for engagement with an edge of a surgical tray; a ridge integrally formed with said base member and remote from said first surface for receiving a solid hemostatic agent that is interengaged with a dry absorbent material and a plurality of dry absorbent material components each separately supporting a quantity of a solid hemostatic agent, said individual components adapted to be separately removed from said base.
Claim 6
Independent Claim
86 words
A device for delivering a solid hemostatic agent to an operating situs, comprising: a base member having a first surface for engagement with an edge of a surgical tray; a ridge integrally formed with said base member and remote from said first surface for receiving a solid hemostatic agent that is interengaged with a dry absorbent material and a plurality of dry absorbent material components each separately supporting a quantity of a solid hemostatic agent, said individual components adapted to be separately removed from said base.
Claim 7
Independent Claim
106 words
A device for delivering a hemostatic agent, comprising, in combination: a) a module including a base member having a surface for engagement with a top edge of a surgical tray sidewall and a ridge integral with, and orthogonal to, said base member, the ridge co-extensive with said top edge; and b) a hemostatic agent applicator affixed to said ridge, said applicator comprising: a mass of hemostatic agent for sealing a bleeding surface on pressured application thereto, said agent supported on a surface of a dry, flexible absorbent member, said member having interstitial spaces, said hemostatic agent projecting from around said surface of said absorbent member outwardly.
Claim 8
Independent Claim
106 words
A device for delivering a hemostatic agent, comprising, in combination: a) a module including a base member having a surface for engagement with a top edge of a surgical tray sidewall and a ridge integral with, and orthogonal to, said base member, the ridge co-extensive with said top edge; and b) a hemostatic agent applicator affixed to said ridge, said applicator comprising: a mass of hemostatic agent for sealing a bleeding surface on pressured application thereto, said agent supported on a surface of a dry, flexible absorbent member, said member having interstitial spaces, said hemostatic agent projecting from around said surface of said absorbent member outwardly.
Claim 9
Dependent Claim
33 words
The device of claim 5, further comprising a string extending from said absorbent member on a surface remote from said hemostatic agent, and a radiopaque marker on a surface of said absorbent member.
Claim 10
Dependent Claim
12 words
The device of claim 6, wherein the hemostatic agent is bone wax.
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) | 1997-12-19 | 1998-06-20 | 1998-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-12-19 | 2002-06-20 | 2002-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-12-19 | 2006-06-20 | 2006-12-20 | $7700.00 | Window Closed / Lapsed |