RU2558892C1 - Syringe cap holder - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment and is intended for taking off and putting on cap of disposable syringe needle. In order to protect hand against prick with needle holder of cap of disposable syringe needle consists of two pivotally or spring fastened halves, which have conic in compressed state cavity and have two shields in form of cylindrical surface. Halves can be spring-loaded in direction of opening and can have limiter of opening. To make setting cap into hole faster and more comfortable it has conic part, funnel-shaped in open state. Shield can have square or rectangular shape.

EFFECT: improvement of construction.

5 cl, 5 dwg

Description

The invention relates to medical equipment and is intended for removing and putting on a needle cap of a disposable syringe.

Sometimes, to serve bedridden patients, the medical staff fills the syringe with medicine in a special sterile room, and then carries the filled syringe into the patient’s room. In order to preserve the sterility of the needle while avoiding microtrauma, the medical staff puts a regular cap on the needle of a disposable syringe. Removing the cap does not cause any problems, but putting it back on requires great accuracy of movement, and if the needle misses the cap, the medical staff can get a microtrauma, and also violate the sterility of the needle.

The objective and technical result of the invention is the protection of the hands of medical staff when donning a needle cap of a disposable syringe.

OPTION 1. In order to protect the hand from a needle prick, the holder of the cap of the needle of a disposable syringe (hereinafter “holder”) has a shield in which there is an opening for the cap and has a pivotally attached key, the friction part of which enters the slot on the holder.

For self-opening the key, it can be spring-loaded in the opening direction and may have an opening limiter.

For quicker and more convenient access of the cap into the hole, it has a conical funnel-shaped part.

In between use of the holder it can be put on a table. And to put it more conveniently with the side button. But a variant is possible when the holder is placed on the table with the key up, and when removing and putting on the cap, the holder is not taken into the hand, but only pressed against the table. So that the holder does not roll off and that it stays stable in both of the mentioned positions, the shield has a square or rectangular shape.

In Fig.1, 2 shows the holder 1 in two projections. It has the form of a fungus with a flattened leg, in which there is an internal cavity 2. A key 3 with a friction part 4 coated with a notch or rubber is pivotally attached to the “leg” of the holder. This part enters the internal cavity 2 through the slot in the latter. The key is spring-loaded in any way - a coil spring, a torsion spring, a leaf spring, etc. Structurally, it is most convenient to place two coil springs on the sides of the internal cavity 2, similarly to FIG. 4. To prevent the key from opening too far to the side, it has an opening stop in the form of a protrusion 5 on the hinged part of the key.

The holder works like this: it is taken in the left hand between the thumb and forefinger. The cap is inserted into the cavity 2 until it stops (the depth of the cavity 2 must be less than the smallest size of the cap, and its diameter must be larger than the largest size of the cap). Then the key 3 is pressed, the friction part 4 of the key clamps the cap, and it can be removed from the needle. In this case, due to the difference in leverage, the holder acts on the cap with a much greater force than the force with which the fingers compress the key.

The holder with the cap located in it is placed on the table. After filling the syringe with medicine, the needle is inserted into the cap, it clicks on the syringe, and the syringe with the cap put on is removed from the holder.

Another option is possible - the holder is placed on the table with the up key (similar to figure 5), and all the above operations are performed in this position.

The holder can be made of plastic with sufficient strength and elastic properties - polyethylene, polypropylene, polystyrene, etc. It is necessary to ensure that the thickness of the key, that is, its rigidity, is sufficient.

OPTION 2. The holder according to option 1 has some asymmetry; due to the presence of a key, it changes its shape on the one hand and not on the other. And although the holder’s operability is maintained at any position of the key relative to the fingers, it can be under the thumb, or it can be under the index finger, for the convenience of using the holder, its symmetry with respect to the fingers is desirable. It can be obtained by installing two symmetric keys on the holder.

But it’s more practical to make a holder of two halves. Such a holder consists of two articulated or spring-fixed halves having a cavity conical in a compressed state and having two shields in the form of a cylindrical surface.

The halves may be spring-loaded in the opening direction and may have an opening limiter.

For a quicker and more convenient way for the cap to enter the hole, it has a conical part, funnel-shaped in the open state.

As in option 1, so that the holder does not roll away and that it stays firmly in both of the above positions, the shield has a square or rectangular shape.

For better retention of the cap, the conical cavity may have friction sections on one or both halves located in the depth of the cavity as close to the hinge as possible (for gain in strength).

When the halves are hinged, the cylindrical shields on them have an axis of cylinders coinciding with the axis of the hinge. And when attaching the halves using a leaf spring, an equivalent virtual axis of this pseudo-hinge is determined empirically. In an embodiment with such a spring, the holder can be molded from plastic as one part. In this case, the opening springs of the holder and the opening limiter are not required.

Figure 3, 4, 5 shows the holder according to option 2. It also has the shape of a “fungus” consisting of two articulated halves 6. At the junction of the halves there is an internal conical cavity 7, the halves are spring-loaded with two springs 8 located on the sides of the cavity 7. Each half has on one side a cylindrical shield 9 with a rounding 10. The shields even in the open state overlap each other to prevent microtrauma with a needle.

This holder works like this: it is taken in the left hand between the thumb and forefinger. The cap is inserted into the conical cavity 7 until it stops. The fingers are compressed, while the halves 6 converge, and the cap is clamped by the halves of the holder or their friction parts. Next - similar to option 1.

Figure 4 shows a section aa, and figure 5 shows the holder in the use position "lying on the table." It is for this position that the shields are rounded 10 so that you can gently press your finger on the edge of the shield.

Claims (5)

1. The holder of the cap of the syringe, characterized in that it consists of two pivotally or spring-mounted halves having a conical cavity in a compressed state and having two shields in the form of a cylindrical surface. 2. The holder according to claim 1, characterized in that the halves are spring-loaded in the opening direction and have an opening limiter. 3. The holder according to claim 1, characterized in that the conical cavity has a conical funnel-shaped part. 4. The holder according to claim 1, characterized in that the shield has a square or rectangular shape. 5. The holder according to claim 1, characterized in that the conical cavity has friction sections located on one or both halves located in the depth of the cavity.

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