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US6592608: Bioabsorbable sealant

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Filing Information

Inventor(s) John S. Fisher · Frederick Ahari · Lucjan J. J. Hronowski ·
Assignee(s) Biopsy Sciences, LLC ·
Attorney/Agent(s) Ronald E. Smith · Smith & Hopen, P.A. ·
Primary Examiner Michael J. Milano ·
Assistant Examiner P Roberts ·
Application Number US9683282
Filing date 12/07/2001
Issue date 07/15/2003
Prior Publication Data
Predicted expiration date 12/07/2021
U.S. Classifications 606/213  · 606/214  ·
International Classifications --
Kind CodeB2
International Classifications 606213 · 606214 · 606230 · 604197 · 604187 · 528354 · 528408 · 525411 · 424443 · 404444 ·
1 Claims, 14 Drawings


Abstract

Openings in a mammalian body made by any medical procedure or non-medical event are sealed with a bioabsorbable plug or sewn with a bioabsorbable suture. In one exemplary embodiment, the plug in dehydrated, unexpanded condition is pushed by a pushing device through the lumen of a needle until a first part of the plug is external to the opening and a second part is internal to the opening. The needle is then withdrawn while the position of the pushing device is maintained. The pushing device is then withdrawn, leaving the plug in sealing relation to the opening. The bodys moisture causes the plug to expand to complete the sealing of the opening, or the expansion may be caused by exposure to air, light, or other stimulant. The opening may be formed in soft tissue, internal organs, or hard tissue. The plug seals the flow of liquid or gaseous biological fluids.

Independent Claims | See all claims (1)

  1. 1. A method for sealing a puncture opening of the type made by a coaxial needle, comprising the steps of: providing a dehydrated plug formed of hydrogel that expands in response to application of a liquid fluid thereto; slidingly disposing the dehydrated plug in a lumen of said coaxial needle; pre-hydrating said dehydrated plug by introducing a liquid-fluid solution into said lumen of said coaxial needle before displacing said prehydrated plug from said lumen; slidingly displacing said prehydrated plug within said lumen to a preselected location near a distal end of said lumen; withdrawing said coaxial needle while maintaining said prehydrated plug at said preselected location; whereby said pre-hydrated plug expands to fill said puncture opening in less time than a dehydrated plug that is not pre-hydrated.

References Cited

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Referenced By

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