JPH0584688U - Opening device - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] Pull out from the container securely and safely without touching the rubber stopper. [Structure] In the cap opening device, a needle plug 1 is pierced from an obliquely upper direction into a rubber stopper C which is fitted in a liquid-tight manner at an upper end opening of a bottomed container B, and the rubber stopper C is pierced. The needle body 1 is rotated upward to pull out the rubber stopper C from the container B.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cap opening device capable of pulling out a rubber plug fitted in an opening of a container such as a blood collection tube without touching it.

[0002]

[Prior art and its problems]

 As is well known, a rubber container such as a vacuum blood collection tube is fitted with a rubber stopper in its opening for the purpose of preventing the outflow of a blood sample.

By the way, the rubber stopper is removed, for example, when the blood collection tube is set in the automatic analyzer, but the present situation is that the removal operation of the rubber stopper is conventionally performed manually.

However, when the rubber stopper is manually removed, there is a risk that the collected blood sample may come into contact with various diseases and that the rubber stopper removal operation is not suitable for many blood collection tubes. Since this procedure is performed on the other hand, such a work is very complicated, and there is also a problem that blood contact infection may occur even when the extracted rubber stoppers are collected. In the case of a center, etc., the blood collection tubes are often held in various racks, so the work of removing the rubber stopper becomes very complicated, and the frequency of blood contact infection increases. Had.

The present invention has been made in view of the present situation, and an object thereof is to make it possible to reliably and safely remove the rubber stopper from the container without touching the rubber stopper. It is intended to provide an opening device.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, in the present invention, the opening device is configured such that a needle body is pierced obliquely from above in a rubber stopper fitted in a liquid-tight manner at an upper end opening of a bottomed container, It is characterized in that the needle body pierced by the rubber stopper is rotated upward to extract the rubber stopper from the container.

[0007]

【Example】

 Hereinafter, the present invention will be described in detail with reference to an embodiment shown in the accompanying drawings.

As shown in FIG. 1, the cap opening device according to this embodiment has a rubber plug C, which is liquid-tightly fitted in a container B such as a vacuum blood collection tube in which blood is accommodated, from diagonally above and from above. The needle body 1 to be pierced, the rubber plug pressing body 2 arranged on the outer periphery of the needle body 1, the needle body 1 and the rubber plug pressing body 2 are rotated upward, and the rubber plug C is placed in the container. And a needle drive device (not shown) that is pulled out from B.

The needle body 1 is formed of a metal body having a small bending deformation, and is advanced by the needle body drive device described above, and in the opening position, as shown in FIG. Is pierced by rubber stopper C. Of course, this piercing direction may be horizontal or obliquely from below.

After the needle body 1 is pierced through the rubber plug C in this way, the needle body drive device rotates the needle body 1 in the upward direction as shown by the phantom line in FIG. As a result, the rubber stopper C is pulled out from the container B.

The needle body drive device for moving the needle body 1 forward and backward and rotating the needle body 1 upward can be configured by appropriately combining a known forward and backward movement mechanism and a rotation mechanism. Detailed description is omitted here.

After the rubber plug C is pulled out from the container B in this way, the rubber plug pressing body 2 operates to remove the pulled rubber plug C from the needle body 1.

The rubber plug pressing body 2 is configured to be slidable along the longitudinal direction of the needle body 1, and after the work of pulling out the rubber plug C by the needle body 1 is completed, the needle body 1 is removed. With this, the rubber stopper C is transferred to a rubber stopper discarding position (not shown), and at the discarding position, the rubber stopper C is pushed by sliding to push the rubber stopper C out of the needle body 1 as shown in FIG. Is controlled as follows.

The sliding mechanism of the rubber plug pressing body 2 and the transfer mechanism between the opening position of the needle body 1 and the rubber plug pressing body 2 and the rubber plug discarding position can be applied by combining various known mechanisms. Therefore, the detailed description is omitted here.

Further, as shown in FIGS. 3 and 4, the needle body 1 has a disc-shaped upper portion 1a (hereinafter, referred to as a wide portion 1a), which is slightly different from a tip end portion thereof. It is suitable for removing the film-like seal plug 3 as shown in Kaihei 2-162229.

The seal plug 3 has a seal body 3a formed of a single-layer or multi-layer film, a tab piece 3b extending on the peripheral edge of the seal body 3a, and an adhesive on the upper surface of the seal body 3a. It is composed of a fixed rubber disc seal 3c, and is configured to be able to aspirate the contained blood by inserting a pipette into the disc seal 3c.

Therefore, when the seal plug 3 is peeled off, blood may adhere to the hand.

In such a case, the needle body 1 having the wide portion 1a configured as described above is pierced from the film portion of the seal stopper 3 and the wide portion 1a is positioned directly below the disc seal 3c. The needle body 1 is rotated upward. As a result, the portion of the disk seal 3c is pushed up by the wide portion 1a, so that the film-shaped seal plug 3 can be peeled off cleanly from the peripheral edge of the upper end opening of the container B without being cut by the needle body 1.

The needle body 1 may be formed in a spiral shape like a corkscrew, and may be rotated to penetrate the rubber stopper C to pull out the rubber stopper C.

[0020]

[Effect of the device]

 As described above, according to the cap opening device of the present invention, it is possible to remove the rubber plug from the container without touching the rubber plug at all, and it is possible to provide it at a low price because of its simple structure. Produce the effect.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the basic configuration of a cap opening device according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing an operating state of a rubber plug pressing body in the same opening device.

FIG. 3 is a cross-sectional view showing a case where a film-shaped seal plug is peeled off by a needle body according to another example of the same opening device.

FIG. 4 is a cross-sectional view showing a state where a needle body is pierced through the seal plug.

[Explanation of symbols]

 1 Needle 1a Wide part 2 Rubber stopper pressing body 3 Seal stopper B Container C Rubber stopper

Claims (1)

[Scope of utility model registration request] 1. A needle plug is pierced through a rubber stopper fitted in a liquid-tight manner at an upper end opening of a bottomed container obliquely from above, and the needle member pierced by the rubber stopper is rotated upward. A cap opening device characterized in that it is configured to be moved to pull out the rubber plug from the container.