US5310407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laparoscopic hemostat delivery system and method for using said system
Assignee: Datascope Investment Corp
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Filing: 1992-10-30
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Granted: 1994-05-10
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Expires: 2012-10-30
Abstract
Abstract A delivery system and method for inserting hemostatic material through a channel of a laparoscopic cannula, and for directly applying the material to an internal tissue site, includes a hollow sheath having a cross-section and configuration that permits sliding passage thereof through the channel of the laparoscopic cannula. The sheath is charged with hemostatic material, and the hemostatic material is advanced through the lumen of the sheath and mechanically applied at the tissue site by an applicator. The hemostatic material may be in the form of compressed loose fibers, a sponge, a powder, a paste, a sheet, or a combination thereof, and may be composed of resorbable collagen.
Inventors
- 👤 John Casale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:16
CPC Classifications
A; A61; A61M; A61M37/00; A61M37/0069; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12099; A61B17/12131; A61B17/12181; A61B2017/00004
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
137 words
A method for directly applying a plug of hemostatic material against an internal vascular tissue site of a patient during a laparoscopic procedure, comprising the steps of, charging a hollow sheath having a distal end and a proximal end with a plug of hemostatic material, passing the distal end of said sheath through a channel of a laparoscopic cannula, and guiding the distal end of said sheath to a position facing the vascular tissue site, passing a plunger through a lumen of said hollow sheath, thereby advancing the plug of hemostatic material in said lumen, such that a portion of the plug of hemostatic material exits the distal end of the hollow sheath, and mechanically applying with pressure the distally extending portion of the plug of hemostatic material against the vascular tissue site to effect rapid hemostasis.
Claim 2
Independent Claim
137 words
A method for directly applying a plug of hemostatic material against an internal vascular tissue site of a patient during a laparoscopic procedure, comprising the steps of, charging a hollow sheath having a distal end and a proximal end with a plug of hemostatic material, passing the distal end of said sheath through a channel of a laparoscopic cannula, and guiding the distal end of said sheath to a position facing the vascular tissue site, passing a plunger through a lumen of said hollow sheath, thereby advancing the plug of hemostatic material in said lumen, such that a portion of the plug of hemostatic material exits the distal end of the hollow sheath, and mechanically applying with pressure the distally extending portion of the plug of hemostatic material against the vascular tissue site to effect rapid hemostasis.
Claim 3
Dependent Claim
49 words
The method according to claim 1, further comprising the steps of, forming said plug of hemostatic material of a predetermined amount, and passing said plunger through said lumen to a predetermined registration mark, thereby disposing said plunger and plug of hemostatic material in a preselected location in said sheath.
Claim 4
Dependent Claim
29 words
The method according to claim 1, further comprising the steps of, maintaining mechanical pressure against said vascular tissue until self-sustaining hemostasis has occurred; and then removing said mechanical pressure.
Claim 5
Dependent Claim
54 words
The method according to claim 1, further comprising the steps of, slowly lessening the amount of mechanical pressure applied against the vascular tissue as said hemostatic material begins to interact with said vascular tissue, and removing said mechanical pressure when said interaction between said hemostatic material and said vascular tissue has produces self-sustaining hemostasis.
Claim 6
Dependent Claim
92 words
A delivery system for use in a medical procedure including a method according to claim 1, the system comprising: a sheath having a proximal end, a distal end and a lumen therethrough, and having a cross-section and configuration that permits sliding passage thereof through the channel of the laparoscopic cannula, a plug of hemostatic material in said sheath lumen, means for advancing said plug of hemostatic material through said sheath lumen, and means for mechanically applying with pressure said plug of hemostatic material against vascular tissue at said site to effect hemostasis.
Claim 7
Dependent Claim
43 words
The delivery system according to claim 5, wherein said means for advancing and mechanically applying said plug of hemostatic material comprises an applicator including a plunger having a cross-section and configuration that permits sliding passage thereof through said sheath lumen with minimal clearance.
Claim 8
Dependent Claim
15 words
The delivery system according to claim 6, wherein said applicator further comprises a thumb plate.
Claim 9
Dependent Claim
24 words
The delivery system according to claim 6, wherein said sheath further comprises a flange disposed at said proximal end and forming a finger grip.
Claim 10
Dependent Claim
92 words
A delivery system for use in a medical procedure including a method according to claim 1, the system comprising: a sheath having a proximal end, a distal end and a lumen therethrough, and having a cross-section and configuration that permits sliding passage thereof through the channel of the laparoscopic cannula, a plug of hemostatic material composed primarily of collagen, means for advancing said plug of hemostatic material through said sheath lumen, and means for mechanically applying with pressure said plug of hemostatic material against vascular tissue at said site to effect hemostasis.
Claim 11
Dependent Claim
92 words
A delivery system for use in a medical procedure including a method according to claim 1, the system comprising: a sheath having a proximal end, a distal end and a lumen therethrough, and having a cross-section and configuration that permits sliding passage thereof through the channel of the laparoscopic cannula, a plug of hemostatic material in the form of compacted loose fibers, means for advancing said plug of hemostatic material through said sheath lumen, and means for mechanically applying with pressure said plug of hemostatic material against vascular tissue at said site.
Claim 12
Dependent Claim
21 words
The delivery system according to claim 5, wherein said plug of hemostatic material is in the form of a compressed sponge.
Claim 13
Dependent Claim
94 words
A delivery system for use in a medical procedure including a method according to claim 1, the system comprising: a sheath having a proximal end, a distal end and a lumen therethrough, and having a cross-section and configuration that permits sliding passage thereof through the channel of the laparoscopic cannula, a plug of hemostatic material in the form of a sheet, means for advancing said plug of hemostatic material through said sheath lumen, and means for mechanically applying with pressure said plug of hemostatic material against vascular tissue at said site to effect hemostasis.
Claim 14
Dependent Claim
17 words
The delivery system according to claim 5, wherein said plug of hemostatic material includes a hemostatic paste.
Claim 15
Dependent Claim
38 words
The delivery system according to claim 5, wherein said plug of hemostatic material is composed of at least two components selected from the group consisting of compressed loose fibers, a powder, a sponge, a paste and a sheet.
Claim 16
Dependent Claim
15 words
The delivery system according to claim 5, wherein said plug of hemostatic material is resorbable.
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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) | 1997-05-09 | 1997-11-08 | 1998-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-09 | 2001-11-08 | 2002-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-09 | 2005-11-08 | 2006-05-10 | $7700.00 | Window Closed / Lapsed |