JP2590257Y2 - Opening device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening device used for a blood test or the like, and more particularly to an opening device which cuts and opens a film-shaped sealing member for sealing a blood collection tube.

[0002]

2. Description of the Related Art As is well known, many blood collection tubes used for blood tests and the like are formed of glass or plastic bottomed tubes. It is currently sealed with a rubber stopper.

In recent years, for example, Japanese Patent Laid-Open No.
As disclosed in Japanese Patent No. 162229, a proposal has been made to seal the opening of the blood collection tube with a film-shaped sealing member instead of the rubber stopper.

As shown in FIG. 3, a conventional liquid sampling tube B using a film-shaped sealing member is configured by extending a tab piece 2 at a part of a peripheral edge of a sealing member 1. ,
At present, when the collected blood is transferred to another container, the tab piece 2 of the seal member 1 is peeled off by grasping it by hand and pulling it up. Reference numeral 3 in the figure denotes a rubber disk seal portion through which a blood collection needle (not shown) such as a pipette, which is bonded and fixed to the center of the outer surface of the seal member 2, is pierced.

[0005]

However, when the tab piece 2 of the sealing member 1 is peeled off by hand, the stored blood may adhere to the hand and cause blood infection. It is possible to do.

However, when mechanically peeling off the tab piece 2 of the seal member 1, it is necessary to accurately position the tab piece 2 at a position of a hand member (not shown) for gripping the tab piece 2. For this purpose, a mechanism is required to rotate the liquid sampling tube vertically held on a rack or the like to position the tab piece 2 at the position of the hand member, and a detection mechanism for monitoring this positioning state. Is also required,
There has been a problem that the mechanism of the opening device is extremely complicated and the cost is high.

The present invention has been made in view of the above situation, and an object thereof is to remove a film-shaped sealing member for sealing a blood collection tube to open the opening of the blood collection tube. An object of the present invention is to provide a simple opening device in which the seal member can be automatically cut and removed within a predetermined range.

[0008]

In order to achieve the above object, in the plug opening device according to the present invention, at least one pair of detents pierced by a sealing member for sealing the opening of the bottomed tubular body. And a pressing body slidable along the longitudinal direction of the rotation preventing member, and a cutter fixed to the pressing body and cutting and opening the sealing member. After the member is pierced by the seal member, and after the cutter pierces the seal member,
By rotating the pressing body or the bottomed tubular body, the seal member is driven and controlled so as to be cut round.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to an embodiment shown in the accompanying drawings.

As shown in FIG. 1, in a blood collection tube B according to this embodiment, a film-shaped sealing member 1 is adhered to an opening 5 of a bottomed tubular body 4 so that the stored blood is extravascular. Sealed to prevent leakage.

The main body of the sealing member 1 is formed of a single-layer or multi-layer film, and a rubber-made needle through which a blood collection needle (not shown) such as a pipette is pierced is provided at the center of its outer surface. The disc seal part 3 is adhered, and the tab piece 2 is integrally extended at a part of the periphery of the main body. Of course, the tab piece 2 may be formed so as to extend integrally from the outer peripheral end of the seal member 1 toward the outer horizontal direction over the entire circumference. Note that the other configuration and materials of the seal member 1 are the same as those of the known seal member, and thus detailed description thereof is omitted here.

On the other hand, the opening device 10 configured to cut and remove the sealing member 1 of the blood collection tube B configured as described above is shown in FIG.
As shown in FIG. 2, a pair of needle-shaped detent members 11 and 12, a cylindrical pressing member 14 for holding the detent members 11 and 12, and a pressing member 1
4 and a cutter 13 having an upper end fixed thereto.

The detent members 11 and 12 are configured so as to be lowered at the plug opening position so that the tips thereof penetrate the disc seal part 3 of the seal member 1, and the seal member 1 is cut by the cutter 13. After that, it is raised with the cut portion locked, and is attached to a lifting device (not shown) so as to be pivotally inclined with the pressing body 14 at the highest position as shown in FIG. . In addition, a known lifting mechanism can be appropriately applied to this lifting device,
The detailed description is omitted here.

The cutter 13 is fixed to a cutter fixing portion 15 protruding from the outer peripheral surface of the pressing body 14 via a screw 16, and when the pressing body 14 is lowered, its tip is connected to the sealing member 1. The sealing member 1 is configured to be cut into a round shape when the pressing body 14 rotates after the piercing operation. In addition, the sealing member 1 of the cutter 13
May be any portion as long as it is within the range from the outer periphery of the disk seal portion 3 to the inner diameter of the opening 5 of the bottomed tubular body 4, but there is no problem when suctioning blood with a pipette or the like. Considering this, it is desirable to arrange so as to penetrate as close to the inner diameter of the opening 5 as possible.

As described above, the pressing body 14 is configured to be slidable along the longitudinal direction of the rotation preventing members 11 and 12, and is configured to rotate in a fixed direction when cutting by the cutter 13. With cutter 1
After the seal member 1 is cut within a predetermined range by 3, the seal member 1 is rotated and inclined together with the detent members 11 and 12, and then slides in the direction of the distal ends of the detent members 11 and 12 so that the distal end portion 14 a rotates. The operation is controlled so as to press the cutting seal member 1 locked at the distal ends of the stopper members 11 and 12 and to separate the cutting seal member 1 from the distal ends of the detent members 11 and 12.

The sliding mechanism, the rotating mechanism, and the rotating and tilting mechanism of the pressing body 14 can be applied by appropriately combining various known mechanisms, and the sealing members 1 can be manually operated one by one. When configured as a cutting device, a spiral cutter is disposed on the outer periphery of the detent members 11 and 12, and the cutter is moved up and down against the urging force of a spring, whereby the sealing member 1 is moved. May be configured to be cut round.

Therefore, according to the opening apparatus according to this embodiment, the opening of the blood collection tube B can be easily opened by cutting the sealing member 1 in a round shape, and thus the conventional opening apparatus of this type is used. As described above, it is possible to effectively prevent the trouble of suctioning blood by a pipette or the like based on dropping the cut seal member into the container B, and to touch the cut seal member 1 with the hand. For example, since the seal member 1 can be automatically discarded to the discarded portion, there is no possibility of causing blood infection and the safety is high. it can.

In the above embodiment, the case where the cutter 13 is attached to the pressing body 14 has been described as an example. However, the present invention is not limited to this, and the cutter 13 and the pressing body 14 are not limited thereto. preparative configured by independently separately, and, by rotating the container B without rotating the cutter 13, the same effect can be configured to cut the seal member 1 is obtained Of course.

[0019]

As described above, according to the opening apparatus of the present invention, when the opening of the blood collection tube is opened by removing the film-like sealing member for sealing the blood collection tube, the detent member is sealed. After piercing the member and piercing the cutter with the sealing member, the pressing member or the bottomed tubular body is rotated to drive and cut the seal member in a round shape. In addition to reducing the size of the device, the device does not increase in size, so that the manufacturing cost can be reduced. In addition, since the work of attaching and detaching the cutter is simple, maintenance is easy, and many other excellent effects can be obtained. can get.

[Brief description of the drawings]

FIG. 1 is a plan view showing a configuration of an opening device according to an embodiment of the present invention.

FIG. 2 is an explanatory view showing a state in which a seal member cut by the opening device is discarded.

FIG. 3 is a plan view showing a configuration of a conventional blood collection tube.

[Explanation of symbols]

 B Blood collection tube 1 Seal member 5 Opening 10 Opening device 11, 12 Detent member 13 Cutter 14 Pressing body

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G01N 1/10 B67B 7/64 G01N 35/00-35/10

Claims (1)

(57) [Scope of request for utility model registration] At least one pair of detent members penetrated by a seal member for sealing an opening of a bottomed tubular body, a pressing member slidable along a longitudinal direction of the detent member, and the pressing member secured to cut the seal member is configured to have a cutter for opening and Ri Na, the detent
Member is pierced by the sealing member, and the cutter is
After piercing the sealing member, the pressing body or the bottomed pipe body
Is rotated to cut the seal member round.
The opening device is controlled in such a manner as to be controlled .