DE554841T1 - Kathetereinführvorrichtung mit Nadelschutz. - Google Patents

Kathetereinführvorrichtung mit Nadelschutz.

Info

Publication number
DE554841T1
DE554841T1 DE93101591T DE93101591T DE554841T1 DE 554841 T1 DE554841 T1 DE 554841T1 DE 93101591 T DE93101591 T DE 93101591T DE 93101591 T DE93101591 T DE 93101591T DE 554841 T1 DE554841 T1 DE 554841T1
Authority
DE
Germany
Prior art keywords
shaft portion
needle
needle tip
shaft
tip cover
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.)
Pending
Application number
DE93101591T
Other languages
English (en)
Inventor
Timothy Erskine
Gerald H Peterson
Robert E Purdy
Stephen L Thoresen
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.)
Becton Dickinson and Co
Original Assignee
Becton Dickinson and Co
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 Becton Dickinson and Co filed Critical Becton Dickinson and Co
Publication of DE554841T1 publication Critical patent/DE554841T1/de
Pending 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
    • A61M25/0618—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for protecting only the distal tip of the needle, e.g. a needle guard
    • 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3273—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel freely sliding on needle shaft without connection to syringe or needle
    • 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3247—Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
    • A61M2005/325—Means obstructing the needle passage at distal end of a needle protection sleeve
    • 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
    • A61M25/065—Guide needles
    • A61M2025/0656—Guide needles having a tip larger than the rest of the body

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Anesthesiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Vascular Medicine (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Claims (10)

Europäische Patentanmeldung 93 101 591.1 DEU 3055 BECTON/ DICKINSON AND COMPANY Patentansprüche
1. Kathetereinführungsvorrichtung, umfassend:
eine Nadel,
eine Katheterröhre, welche über der Nadel angebracht und an
der Nadel verschiebbar ist;
ein Nadelhülsenteil,
wobei die Nadel einen länglichen Schaft, eine Nadelspitze,
einen an den Nadelhülsenteil angrenzenden ersten Schaftabschnitt, einen an die Spitze angrenzenden, zweiten Schaftabschnitt und zwischen dem ersten und dem zweiten Schaftabschnitt einen dritten Schaftabschnitt umfaßt, wobei der dritte Schaftabschnitt einen größeren Außendurchmesser aufweist
als die Außendurchmesser des ersten und des zweiten Schaftabschnitts und wobei der Außendurchmesser des dritten Schaftabschnitts derart ist, daß der dritte Schaftabschnitt das Bewegen der Nadel und der Katheterröhre in ein und aus einem Gefäß nicht wesentlich behindert und wobei die Katheterröhre
weiterhin auf dem Schaft über den dritten Schaftabschnitt
schiebbar ist.
2. Vorrichtung nach Anspruch 1, bei welcher der Schaft einen vierten Schaftabschnitt mit im wesentlichen konischer
Konfiguration umfaßt, wobei der vierte Schaftabschnitt ein erstes Ende mit einem relativ großen Außendurchmesser aufweist, welches an den dritten Schaftabschnitt angrenzt und einen Teil des dritten Schaftabschnitts bildet, und ein zweites Ende mit einem relativ kleinen Außendurchmesser, welches an den ersten Schaftabschnitt angrenzt, und wobei der vierte Schaftabschnitt einen glatten und gleichförmigen Übergang von dem ersten Schaftabschnitt zu dem dritten Schaftabschnitt vorsieht.
3. Vorrichtung nach Anspruch 2, bei welcher der Nadelschaft einen fünften Schaftabschnitt umfaßt, der sich zwischen dem dritten Schaftabschnitt und dem zweiten Schaftabschnitt erstreckt, wobei der fünfte Schaftabschnitt eine im wesentlichen konische Konfiguration aufweist.
4. Vorrichtung nach Anspruch 1, bei welcher der dritte Schaftabschnitt dazu eingerichtet ist, an der Innenfläche des Katheters anzuliegen und mit diesem eine Dichtung zu bilden.
5. Vorrichtung nach Anspruch 1, bei welcher der dritte Schaftabschnitt der Spitze der Nadel wesentlich näher ist als dem Nadelhülsenteil.
6. Vorrichtung nach Anspruch 1, bei welcher der dritte Schaftabschnitt einen Außendurchmesser aufweist, der ungefähr 0,004 Zoll (0,01 cm) größer ist als der Außendurchmesser des ersten Schaftabschnitts.
7. Vorrichtung nach Anspruch 1, weiterhin umfassend:
eine Nadelspitzenabdeckung, welche auf dem Schaft zwischen einer ersten Stellung, in der die Nadelspitze bloßliegt, und einer zweiten Stellung, in der die Nadelspitze durch die Nadelspitzenabdeckung abgeschirmt ist, verschiebbar ist, wobei die Nadelspitzenabdeckung Eingriffsmittel zum Zusammenwirken mit dem dritten Schaftabschnitt aufweist und dadurch verhindert, daß die Nadelspitzenabdeckung vom Schaft abgleitet.
8. Vorrichtung nach Anspruch 7, bei welcher die Nadelspitzenabdeckung ein Nadelspitzensperrmittel umfaßt, um die Nadelspitze derart zu sperren, wenn sich die Nadelspitzenabdekkung in der zweiten Stellung befindet, daß die Nadelspitzenabdeckung nicht in die erste Stellung zurückbewegbar ist, wenn sich die Nadelspitzenabdeckung in der zweiten Stellung befindet.
9. Vorrichtung nach Anspruch 8, bei welcher das Nadelspitzensperrmittel eine Querwand umfaßt, welche am Schaft anliegt, wenn sich die Nadelspitzenabdeckung in der ersten Stellung befindet und die Nadelspitze sperrt, wenn sich die Nadelspitzenabdeckung in der zweiten Stellung befindet.
10. Vorrichtung nach Anspruch 9, bei welcher das Nadelspitzensperrmittel elastische Mittel umfaßt, um die Nadelspitze automatisch zu sperren, wenn die Nadelspitzenabdeckung in die zweite Stellung bewegt ist.
DE93101591T 1992-02-07 1993-02-02 Kathetereinführvorrichtung mit Nadelschutz. Pending DE554841T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07832559 US5215528C1 (en) 1992-02-07 1992-02-07 Catheter introducer assembly including needle tip shield

Publications (1)

Publication Number Publication Date
DE554841T1 true DE554841T1 (de) 1994-02-03

Family

ID=25262015

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69305757T Expired - Lifetime DE69305757T2 (de) 1992-02-07 1993-02-02 Kathetereinführvorrichtung mit Nadelschutz
DE93101591T Pending DE554841T1 (de) 1992-02-07 1993-02-02 Kathetereinführvorrichtung mit Nadelschutz.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69305757T Expired - Lifetime DE69305757T2 (de) 1992-02-07 1993-02-02 Kathetereinführvorrichtung mit Nadelschutz

Country Status (7)

Country Link
US (1) US5215528C1 (de)
EP (1) EP0554841B1 (de)
JP (1) JPH0741079B2 (de)
AU (1) AU660762B2 (de)
CA (1) CA2088641C (de)
DE (2) DE69305757T2 (de)
ES (1) ES2043570T4 (de)

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ES2043570T4 (es) 1997-06-01
DE69305757D1 (de) 1996-12-12
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US5215528A (en) 1993-06-01
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CA2088641A1 (en) 1993-08-08
JPH0741079B2 (ja) 1995-05-10
US5215528C1 (en) 2001-09-11
ES2043570T1 (es) 1994-01-01
EP0554841B1 (de) 1996-11-06
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CA2088641C (en) 1996-08-13

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