JPH0122667Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a holder for a mixing needle that can prevent injuries caused by the mixing needle.

[Conventional technology]

The work of mixing medical liquids stored in glass bottles, plastic containers, etc. with powders, etc. in other containers can be completed in a short time without exposing the liquids, powders, etc. to the outside air. Good for hygiene.
Therefore, two containers are made to communicate in an airtight state by piercing a hollow double-edged needle through a stopper made of an elastic material such as rubber that is fitted inside the openings of the two containers. ing. The work of connecting two containers using this double-edged needle is, for example,
As shown in Fig. 4, a double-edged needle 2 having two passages is fixed to a partition part 1a at the center of a synthetic resin housing 1 having an approximately H-shaped cross section with a holder fixed thereto in the axial direction. ing. Reference numerals 3 and 4 indicate containers such as bottles, 3a and 4a indicate stoppers, and the double-edged needle 2 has a pressure force between the stoppers 3a and 4a, and the pressure between the inner circumferential surface of the housing 1 and the outer circumferential surface of the opening of each container. The attached state is maintained by the fitting force between the two. As a mixed needle holder having such a configuration, for example, Japanese Patent Application Laid-Open No. 1986-
No. 1992, Utility Model No. 54-78397, Utility Model No. 57-117351
No. 60-19724.

[The problem that the idea aims to solve]

However, with conventional mixing needle holders, when the housing is placed on a flat surface with the end face of either end of the cylindrical part facing down, the cutting edge protrudes from the cylindrical part. There was a risk of injury.

On the other hand, the one in which the height of the cylindrical parts at both ends of the housing was made higher than the height of the needle was developed in 1977.
This is proposed by Publication No.-105135. However, when this mixing needle holder is placed on a flat surface with the end surfaces of the cylindrical parts at both ends of the housing facing down,
Since the cutting edge is always facing upward, if a worker accidentally inserts a finger or the like into the cylindrical part, there is a risk of injury as well.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a holder for a mixing needle that can protect the user from injury caused by the cutting edge.

Another object of the present invention is to provide a holder for a mixing needle in which the cutting edge does not stand still with its cutting edge facing upward.

[Means to solve the problem]

In order to achieve the above-mentioned purpose, the present invention is designed so that the height of the cylindrical parts at both ends of the housing having an approximately H-shaped cross section is higher than the height of the double-edged needle, and the edge surface is placed on a flat surface. To provide a holder for a mixing needle which is cut into a curved shape so that it does not stand still at times.

That is, the mixing needle holder of the present invention has a hollow cylindrical shape with a partition part for supporting both needles at the center of the synthetic resin housing, and the height of the cylindrical parts at both ends of the housing is approximately H-shaped in cross section. It is formed to be higher than the height of a double-edged needle, and its edge surface is cut into a curved shape so that it does not rest stably when placed on a flat surface.
By making the height of the cylindrical part at both ends higher than the height of the double-edged needle, not only is it less likely that the worker will be injured by the cutting edge, but the edge surface of the cylindrical part can be cut in a curved shape. Since the blade falls down by itself or by a slight external force, the cutting edge is no longer facing upward, and there is no risk of accidentally inserting a finger into the cylindrical part, thereby completely eliminating the chance of injury. It disappears. Further, if a linear projection is provided on the inner surface of the cylindrical portion, the fitting with the container can be strengthened.

〔Example〕

Hereinafter, the mixing needle holder of the present invention will be described in detail.

FIGS. 1A and 1B, FIGS. 2 and 3 are a perspective view, a sectional view, and an explanatory view of an embodiment of the present invention in use. a housing 11 having a portion 12;
It is generally composed of a one- or two-pass double-edged needle 20 that is fixed to the partition part 12 while penetrating in the axial direction. The housing 11 includes a partition portion 12, and a large-diameter cylindrical portion 13 and a small-diameter cylindrical portion 14 that extend continuously and integrally on both sides of the partition portion 12 in the axial direction. Large diameter cylindrical part 13 and small diameter cylindrical part 1
4 is fitted around the outer periphery of openings 3 and 4 of a bottle or the like, as shown in FIG. The large-diameter cylindrical portion 13 includes a truncated conical tapered portion 15 that expands from the inside to the outside in the axial direction, and a cylindrical fitting that extends further axially from the outer edge of the tapered portion 15. At the terminal end 15a of the tapered part 15, there is an anti-slip rib 17 that protrudes in the outer radial direction over the entire circumference.
are integrally formed, and the outer edge 1 of the fitting portions 14 and 16
4a and 16a are curved cut edge surfaces as shown. The shape of this curved cut edge surface makes it impossible for the housing 11 to maintain a stable stationary state when the housing 11 is placed on a flat surface with the outer edge 16a facing down. In other words, it is preferable that the housing 11 has a curved shape that allows it to fall down immediately with a slight external force or no external force at all.
Preferably, this curved cut edge surface is also formed on the outer edge 14a of the small diameter cylindrical portion 14. Further, on the inner wall of each cylindrical portion 13, 14, a plurality of fall prevention stoppers (linear protrusions) 18 extending in the axial direction are provided projecting at predetermined intervals in the circumferential direction.

It is preferable that the length of the double-edged needle 20 is set so that the double-edged tips are retracted inward from the lower parts of the outer edges 14a, 16a consisting of the curved cut edge surfaces as described above, but at least If the position of the cutting edge is lower than the highest height position of the outer edges 14a, 16a (if it is on the inside), the danger can be alleviated.

In addition, in the above embodiment, the cylindrical parts 13 and 14 are shown in which one has a large diameter and the other has a small diameter, but they may have the same diameter.

In the above configuration, the cutting edge of the double-edged needle 20 is recessed inward from the outer edges 14a, 16a of the respective cylindrical parts 13, 14. Damage caused by hitting a hard object,
Accidents such as deformation can be prevented. Furthermore, since each of the outer edges 14a and 16a is a curved cut edge surface, the holder 10 is unstable when placed on a flat surface with each outer edge facing down. It collapses by applying any external force or even when no external force is applied. As a result, the cutting edge will not stand still pointing upward, making it possible to prevent the above-mentioned accidents from occurring. Furthermore, since a plurality of drop prevention stoppers 18 extending in the axial direction are formed on the inner circumferential surface of each of the cylindrical parts 13 and 14, the bottle does not fall off from the cylindrical part due to its own weight and the weight of the contents. Accidents such as falling can be prevented. Since the cylindrical part is cut into a curved shape, the inside of the container can be seen through the lowered part to check the state of the cutting edge and the chemical solution.

[Effect of idea]

As explained above, according to the mixing needle holder of the present invention, the following effects can be achieved.

(1) The height of the cylindrical part is made higher than the height of the double-edged needle, so the user is less likely to be injured by the cutting edge.

(2) In addition, because the edge surface of the cylindrical part is cut into a curved shape, if the holder is placed on a flat surface, it will fall down by itself or by a slight external force, and the cutting edge will no longer point upwards. Therefore, it is impossible to accidentally insert a finger or the like into the cylindrical portion, and the chance of injury is completely eliminated.

(3) According to the invention set forth in item 2, since the linear protrusion is provided on the inner surface of the cylindrical part, when the cylindrical part is fitted into the mouth of the container, an elastic state is provided and a fitting force is applied. It can be strengthened.

[Brief explanation of the drawing]

FIGS. 1A and 1B, FIGS. 2 and 3 are a perspective view, a cross-sectional view, and an explanatory view of the state of use of an embodiment of the present invention, and FIG. 4 is an explanatory view of the configuration of a conventional example. Explanation of symbols, 1...Housing, 1a...Partition plate, 2...Double-edged needle, 3, 4...Container, 3a, 4a
... Plug, 10 ... Holder, 11 ... Housing, 12 ... Partition part, 13, 14 ... Cylindrical part, 1
5... Taper part, 16... Fitting part, 14a, 1
6a... Outer edge, 17... Anti-slip rib, 18
...Drop prevention stopper, 20...double-edged needle.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A hollow cylindrical shape with a partition for supporting a double-edged needle at the center of the inside, and a cylindrical shape that fits into the opening of a container containing a medicinal solution, powder, etc. at both ends. In the holder for a mixing needle, the cylindrical part is formed higher than the double-edged needle,
A holder for a mixed needle, characterized in that the edge surface is cut into a curved shape so that it does not rest stably when placed on a flat surface. (2) The mixing needle holder according to claim 1, wherein the cylindrical portion has a plurality of linear protrusions formed on its inner peripheral surface.