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
  • A61M5/3205—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
  • A61M5/3213—Caps placed axially onto the needle, e.g. equipped with finger protection guards
• • 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

Definitions

• the invention relates to a device referred to in the preamble of claim 1 Art.
• DE 201 03 363 U1 discloses a device for avoiding contacts of a user of an injection needle with the tip of the injection needle after use. It comprises a needle holder at the proximal end of the needle, on the shaft of a protective element for the needle tip is displaceable. In use, the protective element is adjacent to the needle holder and the needle is free for use. After use, the protective element on the needle is displaced so that the tip of the needle disappears in the protective element, wherein means are provided in the protective device, which prevent a subsequent emergence of the tip of the needle from the protective device. Thus, the user is protected against puncture and contamination by the tip of the needle and thus against subsequent infections.
• This known device is complicated and complicated and complicated to handle, because both hands are required to achieve the protective effect.
• the needle holder must be held with one hand and the protective element on the needle pushed forward with the other hand until the tip of the needle del has disappeared in the protection device. As long as this is not the case, there is a risk of injury. In addition, it can not be ruled out that the needle is not pulled back sufficiently into the protective device, so that the needle tip still protrudes slightly and can cause injuries. This known device is especially complicated because it must be ensured that the protective element can not be moved beyond the needle tip.
• the invention is based on the object, a device according to the preamble of claim 1 to create said type, which is simple in construction and easy to use, with the risk of injury and infection from used and contaminated needle tips is practically impossible.
• the problem underlying the invention is achieved by the teaching specified in the characterizing part of claim 1.
• the teaching of the invention is based essentially on the idea to design the device for avoiding contacts of a user of an injection needle (cannula) with the tip of the injection needle after use as an independent of the cannula or its holder body. As a result, means for attaching the device to a holder for the injection needle or on the same superfluous.
• the independent body has an insertion opening for introducing the tip of an injection needle into the body.
• the body In the body is a cavity for receiving the tip of the injection needle.
• the body holds a leaf spring which protrudes with an edge into the insertion path of the cannula and is arranged so that this edge is deflected upon insertion of the cannula in the insertion and laterally, such that the leaf spring is placed against the insertion direction at forces and with increased force rests against the cannula.
• the body can be placed in a suitable manner on a pad, so that the cannula can be easily inserted with its holder in the insertion, so that the body remains in further movements of the cannula and so before
• the body and the leaf spring form part of a band-shaped sheet metal, whereby according to the invention
• a band-shaped sheet metal For example, and in particular metals, metal alloys, steel, in particular spring steel, is understood, which is bent or folded so that therein the insertion opening and from it the cavity for receiving the tip of the injection needle is formed.
• the sheet may be bent or bent substantially S- or Z-shaped, wherein the leaf spring extends from an edge of a leg of the S or Z-shape, in which the insertion opening is located.
• the leaf spring is made of metal, in particular of steel, wherein advantageously the edge coming into contact with the cannula is sharp, so that it strikes the surface at forces which try to pull the body away from the injection needle the cannula digs and thus counteracts releasing forces.
• the leaf spring may be disk-shaped.
• it has a central opening in the region of the insertion path of the cannula, the edges of which have a smaller spacing from one another than the diameter of the cannula to be introduced through this opening.
• the body and leaf spring are formed from a part of band-shaped sheet metal, it being quite possible for the body to be arranged again in another body, for example and in particular made of plastic, it is expedient according to a development of this embodiment the sheet is bent substantially circular and thus forms the cavity for receiving the tip of the injection needle.
• the circular bend is designed so that the end edges of the sheet overlap obliquely at a distance, wherein in the outer end edge of the insertion for inserting the tip of the injection needle and in the inner end edge is a breakthrough for the injection needle, the sharp-edged edges having. It is obvious to any person skilled in the art to make the orientation of the inner end edge so that upon entry of the injection needle into the opening the inner end edge is deflected like a leaf spring and dig the sharp edges of the opening into the injection needle.
• Fig. 2 shows the embodiment according to
• FIG. 3 corresponds to FIG. 2 with a protected injection needle
• Fig. 5 shows the embodiment according to
• Fig. 6 corresponds to Fig. 5 with fully inserted and protected injection needle
• Fig. 7 shows a second embodiment of the invention.
• FIG. 1 shows a prior art embodiment in which a body 2 made of plastic, independent of an injection needle (cannula) and consisting of an outer part 4 and an inner part 6, enters an inner space 8 of the outer part 4 used and clamped or locked in the position shown.
• the outer part 4 has inside in the region of its upper edge 10 in the representation of a projection 12 which extends around the entire inner circumference of the outer part 4 and against which an outer edge 14 of a disk-shaped leaf spring 16 and from an upper edge 18 of the inner part 6 is held in abutment.
• Fig. 2 corresponds substantially to the illustration in Fig. 1 and shows the same body 2 with its components, but in addition an injection needle 24, the proximal end of which is held by a needle holder 26.
• the injection needle 24 is assumed to be used and contaminated so as to prevent injury from its tip.
• the body 2 is first placed with its support surface 30 on a table, not shown, or the like, after which the injection needle 24 is inserted with the help of the needle holder 26 with its tip 28 in the central opening 20 of the disc-shaped leaf spring 16 and pressed until they has reached in Fig. 3 shown position.
• edges 22 of the opening 20 are deflected relative to the injection needle 24 in the insertion direction and slightly laterally and conjointstilt, as can be seen from Fig. 3. This deflection is also already slightly present when the injection needle is not inserted, as can be seen from FIGS. 1 and 2.
• This division causes the edges 22 of the opening 20 to bear against the injection needle 20 with forces against the insertion direction with increased force, so that the injection needle 24 with its tip 28 no longer consists of a closed interior 32 in the inner part 6 of the body 2 can come free, so there is no risk of injury.
• Fig. 4 shows an embodiment of the invention, in which a body 34 for receiving the end of an injection needle is formed together with a leaf spring 36 made of strip-shaped sheet metal, in particular of steel, which is bent substantially Z-shaped.
• An upper leg 38 of the Z-shape is connected via a central portion 40 with a lower leg 42 which is parallel to the upper leg 38.
• the insertion through the openings 44 and 46 is substantially perpendicular to the lower leg 42.
• edge 48 extends in the drawing down and on the sheet metal part 40 to a leaf spring 36 forming sheet metal part, with its edge 50 in the insertion channel for an injection needle, which is defined by the apertures 44 and 46, extends so far that the edge is pushed away in insertion direction and laterally outwards when the injection needle is inserted, so that the preferably sharp edge 50 digs into the outer circumference of the injection needle.
• FIGS. 5 and 6 illustrate the use of the body 34 according to FIG. 4 in conjunction with an injection needle 52, the proximal end of which is held by a needle holder 54.
• the distal end of the injection needle 52 is already inserted with its tip 56 through the apertures 44 and 46, the lower leg 42 has of course previously been placed on a support surface, on which then the insertion forces are transmitted. Conveniently, this insertion takes place until the position shown in FIG. 6 is reached, in which the tip 56 is located in the interior 58 formed between the lower leg 42 and the Mitteilteil 40 and so the risk of injury from the contaminated tip 56th is excluded.
• Fig. 7 shows an embodiment in which a strip-shaped plate 60 is bent substantially circularly and thus forms an inner space 62 for receiving a distal end 64 of an injection needle 66, the proximal end of which is held by a needle holder 68.
• An outer end edge 70 of the sheet 60 over laps an inner end edge 72 obliquely, wherein in the outer end edge of an insertion opening 74 for insertion of the distal end 64 of the injection needle 66 and in the inner end edge is an opening 76 for the injection needle 66 having sharp edges.
• the inner end edge 72 differs slightly in the insertion direction, so that the distal end 64 can pass through the opening 76.
• the clear width of the opening 76 is dimensioned so that its edges prevent withdrawal of the injection needle 66 from the interior 62.

Landscapes

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=39323973

Family Applications (1)

Country Status (2)

Citations (5)

Family Cites Families (7)

• 2007
  • 2007-03-01 DE DE200710009991 patent/DE102007009991A1/de not_active Withdrawn
• 2008
  • 2008-02-29 WO PCT/EP2008/001632 patent/WO2008104400A1/de active Application Filing

Patent Citations (5)

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