JPH0321252Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention mainly relates to an instrument in which a cover inserted into the needle of a syringe can be freely attached and detached without touching it with fingers.

(Prior art) Needles such as syringes are sold in a package with a cover b made of synthetic resin attached to the needle a to prevent contamination due to adhesion of bacteria during handling before use. , cover b as shown in FIG.
After inserting the needle into the tip of the syringe barrel c with the needle still inserted, remove the cover b and aspirate the injection drug from an ampoule, etc., and perform the treatment.After the treatment is completed, insert the cover b into the needle a again. However, the removal and insertion of the cover after use must be done by a doctor or nurse directly with their fingertips, and no tools have been developed to attach or remove the cover. It is.

(Problems to be solved by the invention) When attaching and detaching the cover exclusively with the fingertips as in the above conventional method, the fingers may come into direct contact with the needle, especially when performing continuous injection treatment on a large number of patients without interruption. Occasionally, the tip of the needle would stick in one's finger by mistake, and there was a fear that this could lead to an accidental infection with pathogens.

(Means for Solving the Problems) The present invention eliminates the disadvantages associated with the above-mentioned conventional operation of attaching and detaching the needle cover with the fingertips, and allows the needle cover to be attached and detached by a simple means without using a trowel directly with the fingers. The purpose is to obtain a tool, and a pair of supporting pieces each having a roughened tip surface is placed on the top surface of an arbitrarily shaped table piece.
Each support piece is rotatably mounted at one end with appropriate spacing, and is biased by a spring so that the tips of the support pieces abut each other. The edges abut each other at a position outside the middle part of the line connecting each shaft fulcrum, and both end surfaces face each other in a V-shape that opens toward the line connecting the shaft attachment parts with the abutting part as the apex. The present invention is characterized in that a stopper is provided at a position spaced apart from the abutment portion of the support piece and protrudes from the upper surface of the support piece so as to face the abutment portion.

(Function) In the detachable device according to the present invention, the needle a with the cover b is attached to the tip of the syringe barrel c from the open side of the V-shaped abutting portion of the tip surfaces of the pair of support pieces pivoted on the base piece.
, and then pull out the barrel c. When inserted, the push-in pressure causes the pair of support pieces to open on both sides against the spring pressure, so insertion is easy; however, when pulled out, both support pieces are supported by the spring pressure. Due to the frictional engagement caused by the clamping pressure of the rough surface at the tip of the piece, the drawing of the cover b is prevented and stops between the two support pieces, so that the needle a can easily come out of the cover b together with the syringe barrel c. Only cover b can be removed from c without using fingertips. Furthermore, if needle a of the syringe barrel is inserted into cover b, which is separated from needle a and held between both support pieces, the tip of cover b, which is held between both support rods, will be pushed forward by the insertion force. Since the needle a is stopped by the stopper, it is possible to push the needle a into the cover up to the base of the needle and connect them to each other.Next, in this state, if the barrel c is slightly lifted, the cover b can be removed as well. It is lifted and separated upward from between both support pieces, and the barrel c can be taken out with the cover b attached to the needle a.

In this way, once the syringe barrel with cover is inserted between the support pieces of the base piece and then pulled out, the cover of the syringe barrel with cover can be easily removed. After inserting needle a until the stopper feels good, cover b can be accurately inserted into needle a by pulling cover b upward from between the support pieces. It can be done without touching.

(Embodiment) An embodiment of the needle cover attachment/detachment device according to the present invention will be described with reference to FIGS. 1 and 2.

Reference numeral 1 denotes a stand piece made of hard synthetic resin or other suitable material, and on its upper surface, a pair of support pieces 2, 2 each having a roughened end surface 3 with small irregularities 4 to increase the coefficient of friction, are attached at one end of each stand piece. are pivoted 5 to be rotatable at appropriate intervals, and the tips of the support pieces 2 are brought into contact with each other by the bias of a spring 6 acting on each support piece 2. The end edges 3a of the end surfaces 3, 3 of the support pieces 2, 2 are connected to the spring 6 at a position outside the middle part outside the line L connecting the respective pivot points 5, 5 of the support pieces 2, 2. The tip surfaces 3 of both supporting pieces 2, 2 are formed into a V-shape so that they abut against each other and open toward the line L side connecting the pivot points 5, 5 with the abutting portion 3a at the top. formed to face each other.

In the illustrated example, the spring 6 is a coiled spring, which is fitted around the shaft piece of the shaft mounting part 5, and one end 6a of the coiled spring is held firmly on the base piece 1 side, and the other end 6b is shown in which it is attached to the support piece 2, but the biasing mechanism using the spring 6 is optional.

A stopper of an appropriate height protrudes from the base piece 1 and is placed opposite the abutment part 3a at a position with an appropriate distance from the abutment part 3a on the tip surfaces 3, 3 of the pair of support pieces 2, 2. 7 was established. A stopper 7 of an appropriate height is provided to protrude from the upper surface of the stand piece 1.

In the illustrated example, the projecting walls 7a, 7 extend from both sides of the stopper 7 toward the abutting portions of the support pieces 2, 2.
a are arranged in series and a guide groove 7b is formed between both projecting walls to facilitate entry of the tip of the syringe barrel c, but both projecting walls 7a are not necessarily required. In the illustrated example, the stopper 7 and both protruding walls 7a are molded as an integral block, and this is attached to one surface of the base piece with a set screw 8.

In the figure, reference numeral 9 indicates a peg insertion hole when the table piece 1 is used by being tied and fixed on a suitable table.

Thus, as shown in FIG. 6, by inserting the cover b of the barrel c, which has the needle a with a cover attached to its tip, from the open side of the V-shaped abutting portions of the tip surfaces 3, 3 of both support pieces, both The support pieces 2, 2 are pushed open by the pushing force against the bias of the spring 6, and the cover b smoothly enters.
As shown in FIG. 3, the insertion of the barrel c is stopped at the position where the tip of the cover b is stopped by the front stopper 7 or at the insertion position of an appropriate length until it does not reach the stopper 7, and then As shown in the figure, when the barrel c is pulled out from that position, the cover b is
The needle a is held in that position by the frictional engagement caused by the clamping pressure of the needle a, and the needle a can be easily pulled out from inside the cover b as a unit with the container c. The treatment can be performed by inhaling it.
Moreover, after the treatment is finished, as shown in FIG. 4, if the needle a of the syringe barrel c is inserted into the cover b held between both support pieces 2, 2, the insertion force will push the cover b away. The tip of the needle a is stopped by the stopper 7, and the needle a is inserted into the cover b accurately to a predetermined depth by inserting the barrel c. As shown, if the barrel c is lifted upward from the inserted state shown by the solid line, the cover b is removed.
both float upward, and the cover b is attached to both support pieces 2,
The container c can be detached from the clamping interval of No. 2 and removed from the attachment/detachment device with the cover b inserted, and then disposed of.The table piece 1 is fixed as shown in Fig. 5. The cover b can be easily attached and detached by using the syringe barrel c tied and fixed on a table and by inserting and removing the syringe barrel c between the support pieces 2 and 2.

The attachment/detachment device of the present invention can also be used for attachment/detachment of a needle cover in a syringe-shaped blood sampler having an aspiration needle.

(Effect of the invention) According to the invention, once the cover of the syringe barrel provided with the needle cover is inserted between a pair of support pieces,
Next, remove the needle cover by pulling out the barrel,
In addition, by inserting the needle of the instrument barrel into the cover held between both supporting pieces, the cover is stopped by the stopper, and the needle can be fully inserted into the cover for a predetermined length and taken out. Since the cover can be attached and detached without touching the cover directly, there is no risk of the needle tip accidentally touching your finger or accidentally pricking your finger when attaching or detaching the cover, and there is no risk of contamination due to adhesion of pathogens, etc. This has the effect of preventing infection accidents and making it easier to attach and detach the cover.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan view, FIG. 2 is a cross-sectional view taken along the - line in FIG.
5 and 4 are plan views showing the state of use, FIG. 5 is a cutaway side view of the state shown in FIG. 3, and FIG. 6 is a perspective view of the syringe barrel to which the covered needle is tied. DESCRIPTION OF SYMBOLS 1... Base piece, 2... Support piece, 3... End surface of support piece, 4... Uneven rough surface, 5... Shaft attachment part, 6... Spring, 7... Stopper.

Claims (1)

[Scope of utility model registration request] A pair of supporting pieces 2, 2, each having a roughened end surface 3, 3, are provided on the upper surface of a platform piece 1 having an arbitrary shape, and are rotatably attached to each other at one end with an appropriate interval between them. A spring 6 urges the tips of the support pieces 2, 2 to abut each other, and the tip surfaces 3, 3 of the support pieces 2, 2 are aligned with the pivot points 5, 5 of the support pieces 2, 2.
The end edges 3a abut each other at a position outside the middle part of the line L connecting them, and both end surfaces 3, 3 face each other in a V-shape that opens toward the line L side with the abutting part 3a as the top. The abutment portion 3a is formed at a position with an appropriate distance from the abutment portion 3a of the support pieces 2, 2.
A needle cover attachment/detachment device for a syringe, etc., which is provided with a stopper protruding from the top surface of a base piece 1 in opposition to.