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US20010020153A1 - Blood seal having a spring-biased septum - Google Patents

Blood seal having a spring-biased septum
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Publication number
US20010020153A1
US20010020153A1US09/819,490US81949001AUS2001020153A1US 20010020153 A1US20010020153 A1US 20010020153A1US 81949001 AUS81949001 AUS 81949001AUS 2001020153 A1US2001020153 A1US 2001020153A1
Authority
US
United States
Prior art keywords
needle
blood
catheter
elastic plug
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US09/819,490
Inventor
Glade Howell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Priority to US09/819,490priorityCriticalpatent/US20010020153A1/en
Publication of US20010020153A1publicationCriticalpatent/US20010020153A1/en
Priority to US10/320,274prioritypatent/US20030120214A1/en
Priority to US10/734,030prioritypatent/US7691088B2/en
Abandonedlegal-statusCriticalCurrent

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Abstract

A blood seal having a spring-biased septum is provided for preventing the leakage of blood during the placement and use of vascular catheters and similar devices. The structure of the blood seal includes a housing with an internal channel. A spring-biased septum is placed securely within the channel such that it substantially blocks blood flow through the channel. The spring-biased septum includes an elastic plug having a pre-slit or pre-molded hole and a biasing element disposed about the elastic plug. A needle or other object may be withdrawn through the slit or hole, after which the biasing element forces the hole closed, preventing blood leakage.

Description

Claims (8)

What is claimed is:
1. A seal, comprising:
a housing;
an elastic plug disposed in the housing and having a proximal end, a distal end, an outside longitudinal surface extending between the proximal end and the distal end, and a slit disposed longitudinally through the elastic plug; and
a biasing element disposed in the housing about the elastic plug and in contact with the outside longitudinal surface of the plug.
2. The seal of
claim 1
wherein the biasing element exerts a radially directed compressive force against the outside longitudinal surface of the elastic plug.
3. The seal of
claim 2
wherein elastic plug defines a circumference and the biasing element does not extend totally about the circumference.
4. A catheter assembly, comprising:
a catheter;
an adapter connected to the catheter, the adapter defining a cavity therein;
an elastic plug disposed in the adapter and defining a circumference and a slit disposed longitudinally through the elastic plug;
a biasing element disposed in the adapter about the elastic plug and in contact with the circumference; and
a longitudinal element extending through the slit.
5. The catheter assembly of
claim 4
wherein the longitudinal element is a needle.
6. The catheter assembly of
claim 4
wherein the longitudinal element is a stylet.
7. The catheter assembly of
claim 4
wherein the biasing element exerts a radially directed compressive force against the outside longitudinal surface of the elastic plug.
8. The catheter assembly of
claim 7
wherein the biasing element does not extend completely about the circumference.
US09/819,4901998-09-022001-03-28Blood seal having a spring-biased septumAbandonedUS20010020153A1 (en)

Priority Applications (3)

Application NumberPriority DateFiling DateTitle
US09/819,490US20010020153A1 (en)1998-09-022001-03-28Blood seal having a spring-biased septum
US10/320,274US20030120214A1 (en)2001-03-282002-12-16Blood seal having a spring-biased septum
US10/734,030US7691088B2 (en)1998-09-022003-12-11Vascular access device

Applications Claiming Priority (2)

Application NumberPriority DateFiling DateTitle
US09/145,449US6228060B1 (en)1998-09-021998-09-02Blood seal having a spring-biased septum
US09/819,490US20010020153A1 (en)1998-09-022001-03-28Blood seal having a spring-biased septum

Related Parent Applications (1)

Application NumberTitlePriority DateFiling Date
US09/145,449ContinuationUS6228060B1 (en)1998-09-021998-09-02Blood seal having a spring-biased septum

Related Child Applications (1)

Application NumberTitlePriority DateFiling Date
US10/320,274ContinuationUS20030120214A1 (en)1998-09-022002-12-16Blood seal having a spring-biased septum

Publications (1)

Publication NumberPublication Date
US20010020153A1true US20010020153A1 (en)2001-09-06

Family

ID=22513175

Family Applications (2)

Application NumberTitlePriority DateFiling Date
US09/145,449Expired - LifetimeUS6228060B1 (en)1998-09-021998-09-02Blood seal having a spring-biased septum
US09/819,490AbandonedUS20010020153A1 (en)1998-09-022001-03-28Blood seal having a spring-biased septum

Family Applications Before (1)

Application NumberTitlePriority DateFiling Date
US09/145,449Expired - LifetimeUS6228060B1 (en)1998-09-021998-09-02Blood seal having a spring-biased septum

Country Status (6)

CountryLink
US (2)US6228060B1 (en)
EP (1)EP1131129B1 (en)
AU (1)AU6023399A (en)
DE (1)DE69925022T2 (en)
ES (1)ES2241361T3 (en)
WO (1)WO2000012171A1 (en)

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ES2241361T3 (en)2005-10-16
DE69925022D1 (en)2005-06-02
EP1131129B1 (en)2005-04-27
WO2000012171A1 (en)2000-03-09
EP1131129A1 (en)2001-09-12
AU6023399A (en)2000-03-21
US6228060B1 (en)2001-05-08
DE69925022T2 (en)2006-01-26

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