CA2235891A1 - Transdermal introducer assembly - Google Patents

Transdermal introducer assembly

Info

Publication number
CA2235891A1
CA2235891A1 CA002235891A CA2235891A CA2235891A1 CA 2235891 A1 CA2235891 A1 CA 2235891A1 CA 002235891 A CA002235891 A CA 002235891A CA 2235891 A CA2235891 A CA 2235891A CA 2235891 A1 CA2235891 A1 CA 2235891A1
Authority
CA
Canada
Prior art keywords
patient
tube segment
introducer
distal end
thread
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
CA002235891A
Other languages
French (fr)
Other versions
CA2235891C (en
Inventor
John J. Mastrototaro
Richard Lemos
Nannette M. Van Antwerp
Edgardo C. Halili
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.)
Medtronic Minimed Inc
Original Assignee
Minimed Inc
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 Minimed Inc filed Critical Minimed Inc
Publication of CA2235891A1 publication Critical patent/CA2235891A1/en
Application granted granted Critical
Publication of CA2235891C publication Critical patent/CA2235891C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/14532—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring glucose, e.g. by tissue impedance measurement
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6847—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
    • A61B5/6848—Needles
    • A61B5/6849—Needles in combination with a needle set
    • 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
    • A61M25/0606—"Over-the-needle" catheter assemblies, e.g. I.V. catheters

Abstract

A transdermal introducer assembly is provided for quick and easy transcutaneous placement of a medical tube on a patient with reduced patient discomfort. The introducer assembly comprises a medical tube segment defining a hollow lumen extending between a distal end for placement into the subcutaneous tissue and a proximal end disposed outside the patient. The tube segment is assembled in side-by-side relation with a hollow introducer needle, and includes an elongated introducer thread at the distal end thereof folded back for slide-fit reception into the open distal end of the introducer needle. In use, the introducer needle is deployed to pierce the patient's skin at a selected placement site and to carry the tube segment to the desired transcutaneous position, after which the introducer needle can be withdrawn and slidably separated from the introducer thread to leave the tube segment and thread in place on the patient. A window is formed in the tube segment near the distal end thereof and, in a preferred form, exposes a transcutaneous sensor carried within the tube segment to patient body fluids.
CA002235891A 1997-05-08 1998-04-23 Transdermal introducer assembly Expired - Fee Related CA2235891C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/848,476 1997-05-08
US08/848,476 US5779665A (en) 1997-05-08 1997-05-08 Transdermal introducer assembly

Publications (2)

Publication Number Publication Date
CA2235891A1 true CA2235891A1 (en) 1998-11-08
CA2235891C CA2235891C (en) 2006-07-18

Family

ID=25303382

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002235891A Expired - Fee Related CA2235891C (en) 1997-05-08 1998-04-23 Transdermal introducer assembly

Country Status (4)

Country Link
US (1) US5779665A (en)
EP (1) EP0876823A3 (en)
JP (1) JPH114895A (en)
CA (1) CA2235891C (en)

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US5779665A (en) 1998-07-14

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