EP0422045A1 - Arrangement for cannulas - Google Patents

Arrangement for cannulas

Info

Publication number
EP0422045A1
EP0422045A1 EP89906844A EP89906844A EP0422045A1 EP 0422045 A1 EP0422045 A1 EP 0422045A1 EP 89906844 A EP89906844 A EP 89906844A EP 89906844 A EP89906844 A EP 89906844A EP 0422045 A1 EP0422045 A1 EP 0422045A1
Authority
EP
European Patent Office
Prior art keywords
protective sleeve
cannulas
cannula
arrangement
fitment
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.)
Withdrawn
Application number
EP89906844A
Other languages
German (de)
French (fr)
Inventor
Hanafi Ameur
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 Individual filed Critical Individual
Publication of EP0422045A1 publication Critical patent/EP0422045A1/en
Withdrawn legal-status Critical Current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
    • 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
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/347—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub rotatable, e.g. bayonet or screw
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150015—Source of blood
    • A61B5/15003—Source of blood for venous or arterial blood
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150389—Hollow piercing elements, e.g. canulas, needles, for piercing the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150381—Design of piercing elements
    • A61B5/150503—Single-ended needles
    • A61B5/150519—Details of construction of hub, i.e. element used to attach the single-ended needle to a piercing device or sampling device
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
    • A61B5/150534—Design of protective means for piercing elements for preventing accidental needle sticks, e.g. shields, caps, protectors, axially extensible sleeves, pivotable protective sleeves
    • A61B5/150633—Protective sleeves which are axially extensible, e.g. sleeves connected to, or integrated in, the piercing or driving device; pivotable protective sleeves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/150007—Details
    • A61B5/150732—Needle holders, for instance for holding the needle by the hub, used for example with double-ended needle and pre-evacuated tube
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/15—Devices for taking samples of blood
    • A61B5/153—Devices specially adapted for taking samples of venous or arterial blood, e.g. with syringes
    • A61B5/154—Devices using pre-evacuated means
    • 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
    • A61M2005/3254—Shielding of proximal needles, e.g. for pen needles

Definitions

  • the present invention relates to protected cannulas preferably for sampling blood.
  • the cannulas and corresponding equipment used for sampling blood and injecting therapeutic liquids are in many cases of disposable type, i.e. they are discarded after use. This causes problems when handling used and polluted cannulas since the sharp needles of the cannula can injure the staff member handling it. This entails the risk of an infectious virus, e.g. an HIV or hepatitis virus being transmitted to the staff member, as a result of small blood residues on the cannula from an infected patient who has been treated being transmitted to the staff member.
  • an infectious virus e.g. an HIV or hepatitis virus
  • the present invention is intended to overcome said drawbacks and is characterised by the subsequent claims.
  • the present invention relates to protective sleeves displaceable in the longitudinal direction over a holder part provided with a twin-pointed cannula, whereby said protective sleeves serve as adapters arranged to be fitted into an appropriate corresponding fitment contained in a corresponding blood tube holder.
  • Fig. 1 shows a protected cannula for blood sampling with its various components.
  • Fig. 2 shews the corresponding blood tube holder.
  • Fig. 3 shows a protected cannula in the transport position prior to use.
  • Fig. 4 shows a protected cannula in the position in which it is fitted.
  • Fig. 5 shows a protected cannula in the application position.
  • Fig. 6 shows a protected cannula in the locked position after use.
  • Fig. 7 shows a protected cannula after application, once it has been removed from the blood tube holder.
  • Fig. 1 shows a protected cannula for sampling blood.
  • the protected cannula comprises a cannula (l) arranged in a holder part 2.
  • Holder part (2) is provided at either end with a locking device (3) and (4) in the shape of a recess cr similar device.
  • Holder part (2) comprises aisc locking devices at either end (5) and (6), which, in the transport position, serve as frictional locking devices for the respective protective sleeve.
  • Holder part (2) comprises a section of larger diameter (7) and a section of smaller diameter (8). This makes it possible to slide the protective sleeves over one another.
  • Holder part (2) is provided with a protective sleeve (9) and (10) for the respective end.
  • Each protective sleeve is provided with a permanent locking device such as a locking flange (11, 12) or a similar device to which corresponds a permanent locking device in holder part (3) and (4).
  • Each protective sleeve is provided with a fitment, preferably a bayonet socket (13) and (14), arranged to be fitted to the respective corresponding fitment of the blood tube holder in the form of a corresponding bayonet socket (19) and (18).
  • Each protective sleeve is textured by grooving (15) or a similar method so as to provide sliding.
  • Each protective sleeve is provided with a collar (15').
  • Fig. 2 shows a blood tube holder (16) pertaining to the protected cannula for sampling blood.
  • Blood tube holder (16) is arranged to contain a blood tube (17).
  • Blood tube holder (16) is provided with fitment (16) and (19) such as a bayonet socket or similar device arranged to receive the corresponding fitment such as a bayonet part of the respective protective sleeve (13) and (14).
  • Fitment (18) and (19) of the blood tube holder is provided with corresponding slits (20) and (21), as a result of which the fitment is resilient. This enables the protective sleeve to be fitted into the respective fitment of the blood tube holder without major resistance.
  • Fig. 3 shows a protected cannula for sampling blood in the transport position, i.e. the position prior to use.
  • flange (11) and (12) of the respective protective sleeve (9) and (10) is retained by friction, which results in temporary locking since the protective sleeves (9) and (10) are frictionally secured to the corresponding friction lock of holder part (5) and (6).
  • the protective sleeves (9) and (10) are, in the transport position, secured only by friction to the respective end of the holder part.
  • Fig. 4 shows a protected cannula, the rear protective sleeve (9) of which is fitted to blood tube holder (16) inasmuch as fitment (13) of the protective sleeve is fitted to the corresponding fitment (19) in the blood tube holier.
  • fitment (13) of the protective sleeve is fitted to the corresponding fitment (19) in the blood tube holier.
  • Fig. 5 shows a protected cannula in which also the forward protective sleeve (10) is fitted by means of fitment (14) in the corresponding fitment (18) of blood tube holder (16).
  • protective sleeves (9) and (10) with the aid of a respective bayonet socket (13) and (14) to the corresponding bayonet socket (19) and (20) in the blood tube holder, holder part (2) is retained in a position in which both pointed ends cf its cannula are bared. This accordingly is the condition for exposing both ends of the protected cannula, which per se is a condition for use.
  • the bared pointed forward end of the cannula is used for insertion into the patient whereas the bared pointed rear end of the cannula, which may be provided with a rubber closure (23) is arranged so as to be connected to a bleed tube by pushing it through the blood tube's rubber stopper (22).
  • Fig. 6 shows a protected cannula after use.
  • Fig. 7 shows that when the forward protective sleeve (10) is released fro blood tube holder (16), both protective sleeves are locked to corresponding ends in the holder part. In this position, in which the cannula is protected, it is removed from blood tube holder (16), thus enabling reuse of the blood tube holder.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Hematology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Surgery (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Physics & Mathematics (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • External Artificial Organs (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

L'agencement pour canules décrit comprend des manchons protecteurs (9, 10) pouvant se déplacer longitudinalement sur une partie porte-canule (2) contenant une canule avec deux extrémités pointues (1). Les manchons protecteurs (9, 10) servent d'adaptateurs pourvus de dispositifs d'assemblage, par exemple un connecteur à baïonnette (13, 14) ou un dispositif similaire, et qui sont conçus pour être agencés dans un dispositif correspondant approprié, tel qu'une douille à baïonnette (18, 19), contenu dans un porte-tube (16) pour tube sanguin.The arrangement for cannulas described comprises protective sleeves (9, 10) which can move longitudinally on a cannula-holding part (2) containing a cannula with two pointed ends (1). The protective sleeves (9, 10) serve as adapters provided with assembly devices, for example a bayonet connector (13, 14) or the like, and which are designed to be arranged in a suitable corresponding device, such as '' a bayonet socket (18, 19), contained in a tube holder (16) for blood tube.

Description

ARRANGEMENT FOR CANNULAS
The present invention relates to protected cannulas preferably for sampling blood.
The cannulas and corresponding equipment used for sampling blood and injecting therapeutic liquids are in many cases of disposable type, i.e. they are discarded after use. This causes problems when handling used and polluted cannulas since the sharp needles of the cannula can injure the staff member handling it. This entails the risk of an infectious virus, e.g. an HIV or hepatitis virus being transmitted to the staff member, as a result of small blood residues on the cannula from an infected patient who has been treated being transmitted to the staff member.
The present invention is intended to overcome said drawbacks and is characterised by the subsequent claims.
The present invention relates to protective sleeves displaceable in the longitudinal direction over a holder part provided with a twin-pointed cannula, whereby said protective sleeves serve as adapters arranged to be fitted into an appropriate corresponding fitment contained in a corresponding blood tube holder.
Fig. 1 shows a protected cannula for blood sampling with its various components.
Fig. 2 shews the corresponding blood tube holder. Fig. 3 shows a protected cannula in the transport position prior to use.
Fig. 4 shows a protected cannula in the position in which it is fitted.
Fig. 5 shows a protected cannula in the application position.
Fig. 6 shows a protected cannula in the locked position after use.
Fig. 7 shows a protected cannula after application, once it has been removed from the blood tube holder.
Fig. 1 shows a protected cannula for sampling blood. The protected cannula comprises a cannula (l) arranged in a holder part 2. Holder part (2) is provided at either end with a locking device (3) and (4) in the shape of a recess cr similar device. Holder part (2) comprises aisc locking devices at either end (5) and (6), which, in the transport position, serve as frictional locking devices for the respective protective sleeve. Holder part (2) comprises a section of larger diameter (7) and a section of smaller diameter (8). This makes it possible to slide the protective sleeves over one another. Holder part (2) is provided with a protective sleeve (9) and (10) for the respective end. Each protective sleeve is provided with a permanent locking device such as a locking flange (11, 12) or a similar device to which corresponds a permanent locking device in holder part (3) and (4). Each protective sleeve is provided with a fitment, preferably a bayonet socket (13) and (14), arranged to be fitted to the respective corresponding fitment of the blood tube holder in the form of a corresponding bayonet socket (19) and (18). Each protective sleeve is textured by grooving (15) or a similar method so as to provide sliding. Each protective sleeve is provided with a collar (15').
Fig. 2 shows a blood tube holder (16) pertaining to the protected cannula for sampling blood. Blood tube holder (16) is arranged to contain a blood tube (17). Blood tube holder (16) is provided with fitment (16) and (19) such as a bayonet socket or similar device arranged to receive the corresponding fitment such as a bayonet part of the respective protective sleeve (13) and (14). Fitment (18) and (19) of the blood tube holder is provided with corresponding slits (20) and (21), as a result of which the fitment is resilient. This enables the protective sleeve to be fitted into the respective fitment of the blood tube holder without major resistance.
Fig. 3 shows a protected cannula for sampling blood in the transport position, i.e. the position prior to use. In this position flange (11) and (12) of the respective protective sleeve (9) and (10) is retained by friction, which results in temporary locking since the protective sleeves (9) and (10) are frictionally secured to the corresponding friction lock of holder part (5) and (6). In consequence the protective sleeves (9) and (10) are, in the transport position, secured only by friction to the respective end of the holder part.
Fig. 4 shows a protected cannula, the rear protective sleeve (9) of which is fitted to blood tube holder (16) inasmuch as fitment (13) of the protective sleeve is fitted to the corresponding fitment (19) in the blood tube holier. By fitting rear protective sleeve ( 9) one causes the protected cannula to be retained on blood tube holder (16).
Fig. 5 shows a protected cannula in which also the forward protective sleeve (10) is fitted by means of fitment (14) in the corresponding fitment (18) of blood tube holder (16). By fitting protective sleeves (9) and (10) with the aid of a respective bayonet socket (13) and (14) to the corresponding bayonet socket (19) and (20) in the blood tube holder, holder part (2) is retained in a position in which both pointed ends cf its cannula are bared. This accordingly is the condition for exposing both ends of the protected cannula, which per se is a condition for use. The bared pointed forward end of the cannula is used for insertion into the patient whereas the bared pointed rear end of the cannula, which may be provided with a rubber closure (23) is arranged so as to be connected to a bleed tube by pushing it through the blood tube's rubber stopper (22).
Fig. 6 shows a protected cannula after use. The forward protective sleeve
(10) is pulled cut until the two protective sleeves are locked in relation to the respective ends of holder part (2), whereby the cannula used is protected, as regards its two pointed ends, by the protective sleeves pulled out. Accordingly, this position makes reuse or exposure of the pointed ends of the cannula impossible.
Fig. 7 shows that when the forward protective sleeve (10) is released fro blood tube holder (16), both protective sleeves are locked to corresponding ends in the holder part. In this position, in which the cannula is protected, it is removed from blood tube holder (16), thus enabling reuse of the blood tube holder.
The invention is, of course, not intended to be limited to the entodiments specially described and shown in the drawings, tut many modifications and variations are possible within the scope of the inventive idea, such as can be gathered from the attached claims.

Claims

1. Arrangement for cannulas (1) comprising protective sleeves (9, 10) displaceable in the longitudinal direction over a holder part (2) comprising a twin-pointed cannula, c har ac t e r i s e d in that each protective sleeve (9, 10) is as such a fitment provided with a bayonet socket (13, 14) or similar device, arranged to be fitted in an appropriate corresponding fitment such as bayonet part (18, 19) or a similar device arranged in blood tube holder (16).
2. Arrangement for cannulas in accordance with claim 1, chara c t e r i s e d in that bayonet part (13, 14) or a similar device of each protective sleeve is fitted into an appropriate corresponding bayonet part (18, 19) of the blood tube holder or similar device, whereby the socket part is held in a position in which the two pointed ends of the cannula are bared.
3- Arrangement for cannulas in accordance with claim 1 and 2, ch a r a c t e r i s e d in that each protective sleeve (9, 10) is lockable in relation to the respective end of holder part (2) of the cannula.
4. Arrangement for cannulas in accordance with claims 1-3. char ac t e r i s e d in that each protective sleeve (9, 10) is arranged in a transport position, in which the protective sleeves are secured to holder part (2) by means of friction.
5. Arrangement for cannulas in accordance with claims 1-4, c h ar a c t e r i s e d in that holder part (2) is provided with a section of larger diameter (7) and a section of smaller diameter (8) and in that each end is provided with a corresponding protective sleeve (9, 10) and in that, in the open position, one protective sleeve (10) emcompasses the other protective sleeve (9).
6. Arrangement for cannulas in accordance with claims 1-5. c hara c t e r i s e d in that blood tube holder (16) comprises a correspondϊng fitment (18, 19) and an appropriate slit (20, 21) and in that said slit enables a respective fitment (13, 14) of the protective sleeve to be easily fitted into a corresponding fitment (18, 19) since the latter can exhibit upward resilience towards the slit and be fitted without resistance.
7. Arrangement for cannulas in accordance with claims 1-6, c h ar a c t e r i s e d in that the rear point of the cannula is provided with a rubber seal (23).
EP89906844A 1988-05-24 1989-05-23 Arrangement for cannulas Withdrawn EP0422045A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8801930 1988-05-24
SE8801930A SE461704B (en) 1988-05-24 1988-05-24 PROTECTION DEVICE IN CANNULES

Publications (1)

Publication Number Publication Date
EP0422045A1 true EP0422045A1 (en) 1991-04-17

Family

ID=20372411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89906844A Withdrawn EP0422045A1 (en) 1988-05-24 1989-05-23 Arrangement for cannulas

Country Status (7)

Country Link
EP (1) EP0422045A1 (en)
JP (1) JPH03504340A (en)
AU (1) AU3762789A (en)
DK (1) DK275490A (en)
FI (1) FI905732A0 (en)
SE (1) SE461704B (en)
WO (1) WO1989011304A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5163908A (en) * 1989-10-16 1992-11-17 Lambert William S Fail safe composite hypodermic syringe with reversible needle and guard assembly
US5084020A (en) * 1990-11-30 1992-01-28 Owen J. Meegan Cannula device with means to provide safe storage after use
US5084019A (en) * 1990-11-30 1992-01-28 Owen J. Meegan Hypodermic syringe with means to destroy and safely store the cannula
IL101680A (en) * 1992-04-23 1995-08-31 Travenol Lab Israel Ltd Blood sampling device
US6346094B2 (en) * 1998-09-28 2002-02-12 Becton, Dickinson And Company Pen needle magazine
US7384414B1 (en) 2007-01-23 2008-06-10 Becton, Dickinson And Company Safety pen needle with non-injection end passive safety features
US7540858B2 (en) 2007-01-23 2009-06-02 Becton, Dickinson And Company Retracting safety pen needle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2664086A (en) * 1950-08-15 1953-12-29 Gerald O Transue Automatic injector for hypodermic needles
US2876770A (en) * 1955-10-10 1959-03-10 Raymond A White Shielded hypodermic syringe
EP0182682A1 (en) * 1984-10-18 1986-05-28 Jean André Henri Reveillon Device for parenteral injection
US4731059A (en) * 1986-10-14 1988-03-15 Medical Safety Products, Inc. Combination needle shield/needle guard device positively locked onto detachable needle assemblies for an evacuated blood collection system and a hypodermic syringe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8911304A1 *

Also Published As

Publication number Publication date
SE8801930D0 (en) 1988-05-24
DK275490D0 (en) 1990-11-20
AU3762789A (en) 1989-12-12
DK275490A (en) 1991-01-15
FI905732A0 (en) 1990-11-20
JPH03504340A (en) 1991-09-26
SE461704B (en) 1990-03-19
SE8801930L (en) 1989-11-25
WO1989011304A1 (en) 1989-11-30

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