CA2475169A1 - Infusion device with needle shield - Google Patents

Infusion device with needle shield Download PDF

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Publication number
CA2475169A1
CA2475169A1 CA002475169A CA2475169A CA2475169A1 CA 2475169 A1 CA2475169 A1 CA 2475169A1 CA 002475169 A CA002475169 A CA 002475169A CA 2475169 A CA2475169 A CA 2475169A CA 2475169 A1 CA2475169 A1 CA 2475169A1
Authority
CA
Canada
Prior art keywords
housing
shield member
needle
cannula
insertion device
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.)
Granted
Application number
CA002475169A
Other languages
French (fr)
Other versions
CA2475169C (en
Inventor
Orla Mathiasen
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.)
Unomedical AS
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 Individual filed Critical Individual
Publication of CA2475169A1 publication Critical patent/CA2475169A1/en
Application granted granted Critical
Publication of CA2475169C publication Critical patent/CA2475169C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06—Body-piercing guide needles or the like
    • A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
    • A61M25/0631—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for fully covering the needle after its withdrawal, e.g. needle being withdrawn inside the handle or a cover being advanced over the needle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00—Surgery
    • Y10S128/917—Body fluid, devices for protection therefrom, e.g. aids, hepatitus
    • Y10S128/919—Syringe, means to protect user

Abstract

The invention relates to a medication infusion set of the type having a flexible cannula adapted for subcutaneous placement, in combination with an insertion, or puncturing, device comprising an insertion needle extending through the cannula and beyond the outer tip thereof, the insertion device further comprising a shield adapted to cover the insertion needle when the latter is withdrawn from the cannula. More specifically, the invention provides a fully integrated shield member having a position in which it covers the cannula and the needle when the insertion device is connected to the housing, a position allowing the cannula to be inserted when the insertion device is connected to the housing, and a position in which the shield covers the needle and the outer tip thereof when the insertion device has been removed from the housing. By this arrangement the need for a separate cover to protect the needle prior to use can be dispensed with.

Claims (10)

1 1. An infusion set comprising:
- an infusion device (100) having a housing (110) comprising an opening (113) and a soft cannula (150) extending from the housing and being in flow communication with the opening, the soft cannula having an outer tip, - an insertion device (200) adapted to be releasably connected to the housing, the insertion device comprising a hub (210) and a needle (250) mounted thereon, the needle being adapted to extend through the opening and beyond the outer tip (151) of the cannula when the insertion device is connected to the housing, the needle being at the outer end (251) adapted for facilitating puncturing, wherein - the insertion device further comprises a shield member (230) having a position in which it covers the cannula and the protruding outer tip of the needle when the insertion device is connected to the housing, a position allowing the cannula to be inserted when the insertion device is connected to the housing, and a final position in which the shield member (230) covers the needle and the outer tip thereof when the insertion device has been removed from the housing, characterized in the shield member (230) and the hub (210) including cooperating locking means for holding the shield member (230) in said final position, said shield member being connected to the hub (210) such that the needle is bent in said final position, said bent needle pro-viding a biasing effect between said cooperating locking means, the bent needle closely abutting on the shield member (230).
2. An infusion set as defined in claim 1, wherein the shield member has an initial position in which it covers the cannula and the protruding outer tip of the needle when the insertion device is connected to the housing, a retracted position allowing the cannula to be inserted when the insertion de-vice is connected to the housing, and a final position in which the shield cov-ers the needle when the insertion device has been removed from the hous-ing, at least one of the positions being predefined.
3. An infusion set as defined in any of the previous claims, wherein the shield member (230) is pivotally connected to the hub (210).
4. An infusion set as defined in any of the previous claims, wherein the hub and the shield member in combination provides a bridging means (215, 233) spanning the housing from a rear to a front portion thereof.
5. An infusion set as defined in any of the previous claims, wherein mating coupling means (240, 218) are provided on the shield member re-spectively the housing for releasably locking the shield member in an initial position in which it covers the cannula and the protruding outer tip of the needle when the insertion device is connected to the housing.
6. An infusion set as defined in any of the previous claims, wherein mating coupling means (236, 237, 219) are provided on the shield member respectively the hub for releasably locking the shield member in a retracted position allowing the cannula to be inserted when the insertion device is con-nected to the housing.
7. An infusion set as defined in any of the previous claims, wherein mating coupling means (240, 216) are provided on the shield member re-spectively the hub for locking the shield member in a final position in which the shield covers the needle when the insertion device has been removed from the housing.
8. An infusion set as defined in any of the previous claims, wherein the housing comprises a cavity having a rear end with an opening, and an opposed front end in fluid communication with the cannula, the needle being mounted through the opening and out through the cannula, the opening pref-erably comprising a self sealing penetratable septum (120) allowing the nee-dle to be mounted there through.
9. An infusion set as defined in any of the previous claims, wherein the housing has a generally flat configuration with a lower surface adapted to engage a skin surface of a user and an opposed upper surface, the insertion device comprising a bridge portion spanning the upper surface, the bridge portion comprising a hinge member (235) allowing the shield member to pivot relative to the hub.
10. An infusion set as defined in any of the previous claims, wherein the housing has a lower surface adapted to engage a skin surface of a user and defining a general plane far the infusion set, the shield member being arranged to pivot relative to the to the hub corresponding to an axis in parallel with or perpendicular to the general plane.
CA2475169A 2002-02-12 2003-02-11 Infusion device with needle shield Expired - Fee Related CA2475169C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DKPA200200208 2002-02-12
DKPA200200208 2002-02-12
PCT/DK2003/000087 WO2003068305A1 (en) 2002-02-12 2003-02-11 Infusion device with needle shield

Publications (2)

Publication Number Publication Date
CA2475169A1 true CA2475169A1 (en) 2003-08-21
CA2475169C CA2475169C (en) 2011-04-12

Family

ID=27675520

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2475169A Expired - Fee Related CA2475169C (en) 2002-02-12 2003-02-11 Infusion device with needle shield

Country Status (7)

Country Link
US (1) US7147623B2 (en)
EP (1) EP1474199B1 (en)
AT (1) ATE323526T1 (en)
AU (1) AU2003208296A1 (en)
CA (1) CA2475169C (en)
DE (1) DE60304681T2 (en)
WO (1) WO2003068305A1 (en)

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EP1474199B1 (en) 2006-04-19
WO2003068305A1 (en) 2003-08-21
ATE323526T1 (en) 2006-05-15
DE60304681D1 (en) 2006-05-24
CA2475169C (en) 2011-04-12
EP1474199A1 (en) 2004-11-10
AU2003208296A1 (en) 2003-09-04
DE60304681T2 (en) 2007-01-25
US7147623B2 (en) 2006-12-12
US20030225374A1 (en) 2003-12-04

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