FR2707502A3 - Multistandard syringe cap fitted laterally to prevent accidental pricking - Google Patents

Abstract

The cap opens laterally over its entire length when the operator presses together two tabs (1) fixed laterally along the diametrically opposite side. The part (4) of the cap located between the two tabs acts as a hinge by virtue of the fact that it is considerably narrowed by a channel hollowed in the inner face of the cap. For improved holding, a rubber strip (3) is forcibly inserted between the two tabs. This cap therefore makes it possible to prevent the accidental pricking which contributes to the propagation of diseases which can be passed on through blood contact (serum), in particular to the nursing staff.

Description

- 1 -

  Multistandart syringe cap, lateral installation for the prevention of accidental punctures.

  The article according to the invention is intended to prevent these bites occurring during the replacement of the cap and whose incidence is particularly heavy on the level of the nursing staff> by the spread of transmission diseases

  such as AIDS, hepatitis B and many others

dies again.

  Until now, the solutions proposed have focused on the use of used needle collection containers, which are additional items; the operator must

  having them close at hand, which is conceivable, at the ri-

  geuren milieu hospitalierjmnais practically inapplicable in all other cases of individual use which are precisely the great flexibility and convenience of use of

disposable syringes.

  Models of syringes designed to mask the needle after use are being explored here and there, but these are

  to make other syringes, an expensive solution-if there are 20.

  The needle cap according to the invention is specially designed to be removed and replaced by a lateral movement--

  ral.Il opens laterally over its entire length and on its top (according to a diameter) when the fingers of the manipulator25 pinch together two fins fixed laterally on the side diametrically opposite to the slot and moving outwards radially. These fins are wider towards the proximal part to give grip to the fingers. In the middle and distal part they constitute a simple ramp running along the cap and stopping a few millimeters from its top. The two fins delimit between them on

  the entire length of the cap, a thin part of the outer wall of the cap to which the inner face responds, a deep gutter considerably thinning the wall. This thinned part serving as a longitudinal hinge during opening side of the cap.

2 -

  When the manipulator releases the ailerons, these

  take their initial position corresponding to the closure

  from the side slot on the opposite side of the cap.

  Foresaw a plastic material with the characteristics-

  ques physics studied we will make sure that this movement

  return is spontaneous and energetic.

  retention even better, by a more energetic tightening ide the base of the needle, a thin rubber band is inserted in the forced position and glued on the cap, between, the fins, or slipped in lateral grooves dug on the internal face ailerons o The cap according to the invention encompasses the entire needle and its base and also covers the tip of the syringe

  on which it shrinks; the placement is easier

  lit because the cap rests on the body of the syringe.

  Thus, the cap can only be removed laterally, a

  Longitudinal movement also driving the needle.

  It will be the habit of a manipulator to proceed by lateral movement to remove the cap and, consequently,

  to put it back in place without any risk of being bitten.

  Note that this cap is absolutely multistandart; we will keep the usual syringes of some brands that they are Besides the thin rubber band, other means of restraint can be used individually or in combination, as appropriate, to ensure good stability of the cap:

  either a rubber patch glued to the top of the cap

  chon, that is to say a plastic tongue forming a spring blade (provided for molding) and coming from the internal face of

  one of the fins to oppose the other, that is to say a rod

  comes out in [J, each branch of which is integral with one of the two ai-

  lerons included in its concavity.The side slit of the cap

  can be radial or not. In the latter case, while fitting

  exactly so, the edges of the open cap can be cut bevel or V (concave on one side, convex on the other). -3- A series of drawings illustrates the invention: Figure I shows a cap according to the invention coiffantant a syringe Figures 2 and 3 show two methods of fixing the rubber band. Figure 4 gives the direction of fitting and removing the cap

  Figure 5 shows the open side cap.

  Figure 6 shows the aileron pinching.

  11 FIG. 7 shows a longitudinal section of the cap-needle-top assembly of the syringe, FIGS. 8 to 15 show cross sections at

  different levels of the cap open and closed.

  Figure 16 shows various possible means of restraint,

  Figures 17 to 19 show various possibilities of

  cut from the sides of the side opening of the cap.

  Figure 1 shows us a cap in place for -

  can only be removed and put back in place laterally. The bringing together of the ailerons (1) opens the lateral slit which continues on the top through an opening (2)

  The compression of the cap is reinforced by the compression

  sion exerted by the elastic band (3) sandwiched between the ai-

  lerons. Figure 2 shows us a section in a in the case of a glued rubber band, Figure 3 shows us a section at the same level in the case of a rubber band slipped in hollow grooves

  placed on the inside of the fins.

  Figure 4 illustrates the possibility of removing and

  - replace the cap laterally, without the risk of itching

re accidental.

  Figure 5 shows the opening of the cap with the thinned part (4) over the entire height of the cap and serving

  hinge; the narrowed proximal part (5) prohibits re- :.

  line of the cap by a longitudinal movement.

4 -

  Here the fins are brought together by the fingers db ma-

  nipulator. Figure 6 shows the elastic band (3) compressed

even more during this movement.

  Figure 7 shows a longitudinal section of the cap

  and its contents.The cap rests on the body of the

  ringed by the narrowed part (5); it envelops the base (6) of the needle.

  Figure 8 shows a cross section at the level

  tal of the hood, above the fins.

thinned (4) hinged.

  Figure 9 shows the appearance, at this level, when opening

cap size.

  FIG. 10 shows a cross section at the level of the ramp parts of the fins (1) which frame the elastic band (3),

  Figure 11 shows the appearance, at this level, when

  vertex of the cap with increased compression of the

elastic band (3).

  Figure 12 shows a cross section at the base (6) of the needle.The wall of the cap is narrowed at this level while the fins are concerned in their

widest part.

  Figure 13 shows the appearance, at this level, when

the opening of the cap.

  Figure 14 shows a cross section at level

  of the proximal part narrowed on the end piece (7) of the syringe-

The cap is thick.

  Figure 15 shows the appearance, at this level, when

  green of the cap0 Figure 16 shows a cap with various means

  all aimed at strengthening its containment on the base of the

  guille uEn (8) a rubber patch glued to the top of the cap. In (9) a plastic strip from a ramp made

blade spring office.

_- - 5 -

  In (10) the plastic strip comes from the fin in its wide part. A U-shaped spring rod (11) can have the same function by its tendency to spread the fins included in

its concavity.

  i Figure 17 shows the edges of the side slot

in a radial section.

  Figure 18 shows a bevel cut Figure 19 shows a V cut.

Claims (4)

-o- R E V E N D I C A T I 0 N S -o-   1 - Multistandart syringe cap for positioning   this lateral to avoid accidental punctures, according to the invention, characterized in that it opens laterally over its entire length and on its top (along a diameter (2) _) when the fingers of a manipulator come together, by   pinch, two fins (1) fixed laterally on the side di-a-   metrically opposite to the slot and moving outwards laughing radially.   Characterized in that these fins are larger   towards the proximal part to give grip to the fingers5ls5 r-   - Medium and distal are reduced to a single ramp. .   stopping a few millimeters from the top of the cap.   Characterized in that the fins delimit between themselves, over their entire length, a thin part of the external wall of the cap to which responds, to the internal facej   a deep gutter considerably thinning the wall   king which serves, at this level, as a longitudinal hinge (4).   Characterized in that an elastic band (3) is inserted, in the forced position, and glued to the cap, between the fins which it tends to spread apart strongly, improving so the restraint.   Characterized in that it includes, in addition to the needle and its base, the tip of the syringe on which it is shrinks (5).   Characterized in that it rests directly on the body of the syringe 2 - Cap according to claim 1 characterized in that the rubber band is fixed by sliding in grooves hollowed out on the internal face of the fins - 7 - 2707502   3 - Cap according to claim 1 or 2 characters   laughed at in that it does not have a rubber band, its content on the base of the needle being ensured by the choice of the physical elasticity characteristics of the plastic material constituting it.   4 - cap according to any one of claims   previous characterized in that a rubber pad (8)   tchouc combs it to reinforce the compression.   - Cap according to any one of the claims   previous-characterized in that one of the fins detaches a strip (9), (10), acting as a re.ssort blade towards   the other ramp, which it thwarts.   6 - Cap according to any one of the preceding claims, characterized in that a spring rod (11) in a U   - tends to move aside the two fins which are included in its concavity.