EP0735902A1 - Seringue - Google Patents

Seringue

Info

Publication number
EP0735902A1
EP0735902A1 EP94930915A EP94930915A EP0735902A1 EP 0735902 A1 EP0735902 A1 EP 0735902A1 EP 94930915 A EP94930915 A EP 94930915A EP 94930915 A EP94930915 A EP 94930915A EP 0735902 A1 EP0735902 A1 EP 0735902A1
Authority
EP
European Patent Office
Prior art keywords
syringe
cannula
attachment
protective
syringe according
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Withdrawn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
EP94930915A
Other languages
German (de)
English (en)
Inventor
Kurt Groeben
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
Priority claimed from DE4332182A external-priority patent/DE4332182C1/de
Application filed by Individual filed Critical Individual
Priority claimed from PCT/DE1994/001239 external-priority patent/WO1996012514A1/fr
Publication of EP0735902A1 publication Critical patent/EP0735902A1/fr
Withdrawn legal-status Critical Current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
    • A61M5/3293—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 characterised by features of the needle hub

Definitions

  • the present invention relates to a syringe for injecting and puncturing, in particular a disposable syringe with a syringe part and a cannula part detachably connectable therewith, which has an attachment that can be plugged onto the syringe part and a cannula starting from the attachment.
  • Disposable syringes are used today for injecting and puncturing joints and hollow organs. They consist of a cannula part and a syringe part, onto which the cannula part can be attached. Both parts are stored separately from each other before use. For use, the cannula part provided with a protective cover is placed on the syringe part and the protective cover is removed. A corresponding amount of the liquid to be injected is drawn into the syringe for injecting. When puncturing, the puncture is made approximately perpendicular to the surface of the skin and the appropriate body fluid is removed.
  • the invention is based on the object of creating a syringe of the type mentioned at the outset which enables particularly safe handling when injecting or puncturing and deconnecting.
  • This object is achieved according to the invention in a syringe of the type specified in that the attachment in its end area facing the cannula and in its end area facing the syringe each have a protective sleeve at least partially surrounding the attachment, which are arranged at such a distance from one another. that the approach between the protective cuffs can be gripped with the fingers.
  • the invention thus further develops the approach of the cannula part so that the fingers of the doctor taking the approach cannot in contact with the cannula and the puncture site on the one hand and the connecting section of the syringe part on the other hand when injecting, puncturing and / or disconnecting.
  • the cuff on the end region of the attachment facing the cannula provides protection against touching the puncture site and the cannula
  • the cuff arranged on the end region of the attachment facing the syringe protects against touching the syringe part, in particular the corresponding connecting section it forms.
  • the two protective sleeves are arranged at such a distance from one another that the attachment of the cannula part can be gripped comfortably with the fingers or held for injecting, puncturing and / or disconnecting.
  • the fingers of the doctor holding the neck no longer come into contact with the puncture site or the cannula during deconnection.
  • the protective sleeve arranged at the associated end region of the attachment prevents the portion of the syringe part to be inserted into the attachment from contacting the doctor's fingers if the insertion is inaccurate.
  • there is disconnection of the cannula part from the syringe part by Ge need not fear that the finger of the doctor set the arrival abr 1 tschen kön- because they are given a lateral hold by the protective cuffs.
  • the protective sleeves preferably have a radial extension corresponding at least to the thickness of a finger from the base. This ensures extensive protection against accidental contact in the radial direction.
  • One embodiment of the invention is characterized in that the protective sleeves are formed by ring disks. In this way, a complete closure of the grip area of the extension is achieved in the axial direction both in the direction of the cannula and in the direction of the syringe part.
  • the cannula and the puncture site are optimally shielded against finger contact. The same applies to the corresponding connecting section of the syringe part.
  • Another embodiment of the invention is characterized in that the protective sleeves are formed by individual radial fingers. With this solution, there is free space between the individual fingers. However, the risk of contact of the fingers with the areas to be protected through these free spaces is low, especially if the free spaces are designed to be narrow. This solution can therefore prove to be sufficient for many applications and has the advantage of saving material.
  • one cuff can also be annular and the other cuff can be finger-shaped.
  • the protective sleeves extend over an acute angle to the axis of the attachment.
  • both protective sleeves are therefore inclined in opposite directions.
  • This solution has the advantage that the protective cuff arranged on the end area facing the syringe part serves as a guide for seating the syringe part, because the conical portion formed by the cuff guides the connecting section of the syringe part into the central attachment opening.
  • the conical shape of the protective sleeve at the end area facing the cannula ensures that the attachment and the protective sleeve itself do not come into contact with the puncture site. This further reduces the risk of contamination.
  • a section for attaching a cannula protective sheath is provided between the end of the cannula and the associated protective sleeve.
  • This embodiment is particularly advantageous in combination with a conical protective sleeve, since the section for attaching the cannula protective sleeve is surrounded by the conical protective sleeve, which has a corresponding shielding effect and can be supported on the patient's skin.
  • the protective sleeves are advantageously designed to be resilient in order to enable elastic support.
  • On- Set and protective sleeves are expediently designed as a one-piece plastic molding or injection molded part.
  • the attachment is in two the protective sleeves
  • Interrupted handle sections that are connected to each other via a cannula line.
  • This embodiment is used when the cannula part and syringe part should or must be arranged at different points.
  • the one-piece and continuous projection in the other embodiments is divided into two sections serving as grip sections, which are connected to one another via a cannula line, for example a hose.
  • Each grip section is provided with a corresponding sleeve, wherein both the grip section facing the cannula and the grip section facing the syringe part can be gripped with the fingers in order to be able to handle the cannula part and syringe part in the manner described above.
  • the sleeve provided on the handle section facing the syringe part serves as protection when disconnecting or connecting, while the protective sleeve facing the cannula protects the injection site accordingly.
  • a handle section can be omitted.
  • Figure 1 is a side view of a conventional disposable syringe in the assembled state
  • Figure 2 is a side view of a syringe designed according to the invention in the assembled state, the two
  • Figure 3 is a perspective view of the front of the syringe of Figure 2;
  • FIG. 4 shows a side view of the front part of a further embodiment of a syringe designed according to the invention.
  • Figure 5 is a side view of another embodiment of a cannula part.
  • the conventionally designed disposable syringe shown in the side view in FIG. 1 comprises a cannula part 1 and a syringe part 2, which are shown in the assembled state.
  • the cannula part consists of a slightly conical shape made of a suitable plastic attachment 4, which has a front section 8 with a reduced diameter. Reinforcing ribs 13 extend from this section 8 in the lateral direction.
  • a metal cannula 3 is formed in the front section 8 is hollow in its rear portion.
  • the connecting section 5 of a syringe part 2 is inserted into the recess in section 4.
  • This connection section 5, like the recess in the projection 4, is slightly conical, so that a secure plug connection is possible.
  • the syringe part widens from the connecting section 5 to a cylinder section 6, in which a piston is slidably guided and can be operated manually via a piston rod 7.
  • the disposable syringe embodied according to the invention shown in FIG. 2 is identical to the syringe of FIG. 1 except for the design of the attachment 4. Therefore, only the features that differ from the embodiment of FIG. 1 are described here.
  • the extension 4 of the cannula part 1 is so long in the syringe designed according to the invention that it can hold the thumb or a finger of a hand for gripping the extension.
  • the approach is delimited at both ends by a protective sleeve 9, 10, which in this embodiment is designed as conical ring disks, as shown in particular in FIG. 3.
  • a protective sleeve 9, 10 which in this embodiment is designed as conical ring disks, as shown in particular in FIG. 3.
  • a flange section 8 with a reduced diameter compared to the shoulder 4, which serves to attach a protective cover for the cannula 3.
  • FIG. 3 shows the front part of the syringe of FIG. 2 in a perspective view.
  • FIG. 4 shows a further embodiment of a syringe designed according to the invention, in which the two protective sleeves 11, 12 have a plurality of obliquely arranged fingers. like to have.
  • the tips of the fingers of the protective sleeve 11 can come into contact with the skin during puncturing and can be supported thereon.
  • the syringe designed according to the invention is used in the following way:
  • the cannula part 1 and the syringe part 2 are put together by introducing the connecting section 5 into the corresponding bore in the attachment 4.
  • the syringe is then inserted into the corresponding hollow organ for puncturing.
  • the syringe part 2 is detached from the cannula part 4 by pulling the connecting section 5 out of the corresponding bore of the attachment 4.
  • the attachment 4 is held between the thumb and index finger, the two protective sleeves 9 and 10 preventing the fingers from coming into contact with the cannula or puncture site and the connecting section 5 of the syringe part.
  • the syringe part 2 is connected again to the cannula part 4 by inserting the connecting section into the recess of the attachment 4.
  • the conical protective sleeve 10 serves as a guide and prevents the tip of the connecting section 5 from coming into contact with the fingers holding the cannula part 4, which is still on the patient's skin.
  • liquid can be sucked off again.
  • the entire syringe is removed from the body.
  • the Schutzi ⁇ anschetten or a protective sleeve can be coated further ⁇ a side or both sides with a bacteriocidal Materi al.
  • Figure 5 shows a further embodiment of a cannula part.
  • This embodiment differs from the embodiments of FIGS. 2 to 4 in that the attachment 4 is divided into two attachment or handle sections 4a, 4b, which are connected to one another via a suitable cannula line 14, shown here as a tube.
  • a suitable cannula line 14 shown here as a tube.
  • Puncture site remains and the liquid to be injected over the
  • Hose 14 enters the metal cannula or the liquid removed is guided via hose 14 to the syringe part.
  • Handle section 4b of the approach is required for handling when connecting or disconnecting.
  • this embodiment also ensures the advantages of safe handling listed above

Landscapes

  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

Seringue pour injection et prélèvement, notamment à usage unique, comprenant un corps de seringue (2) et un élément à aiguille (1) reliée amovible audit corps, présentant un pavillon (4) pouvant s'emboîter sur le corps (2) et une aiguille (3) s'étendant à partir du pavillon. Le pavillon (4) présente dans sa zone terminale tournée vers l'aiguille (3) et dans sa zone terminale tournée vers le corps (2), respectivement, des colliers de protection (9, 10, 11, 12) entourant au moins partiellement le pavillon (4). Les deux colliers (9, 10, 11, 12) sont espacés l'un de l'autre d'une distance telle que le pavillon (4) puisse être saisi manuellement entre ces colliers (9, 10, 11, 12).
EP94930915A 1993-07-28 1994-10-21 Seringue Withdrawn EP0735902A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4325245 1993-07-28
DE4332182A DE4332182C1 (de) 1993-07-28 1993-09-22 Spritze
PCT/DE1994/001239 WO1996012514A1 (fr) 1993-07-28 1994-10-21 Seringue

Publications (1)

Publication Number Publication Date
EP0735902A1 true EP0735902A1 (fr) 1996-10-09

Family

ID=27205389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94930915A Withdrawn EP0735902A1 (fr) 1993-07-28 1994-10-21 Seringue

Country Status (2)

Country Link
EP (1) EP0735902A1 (fr)
AU (1) AU7989594A (fr)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9612514A1 *

Also Published As

Publication number Publication date
AU7989594A (en) 1996-05-15

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