JP2577304Y2 - Suction leachate collection device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device belonging to a clinical biochemical measuring device for collecting biological substances, and more particularly to a suction leachate collecting device for non-invasively collecting suction leachate from the skin surface.

[0002]

2. Description of the Related Art Generally, component analysis of blood collected from a human body is performed using a clinical test or a biochemical analyzer. However, recent advances in electronics have led to the development of assays using aspirated exudates taken from the skin surface instead of blood, such as the Proceedings of the First Pan Pacific Symposium, Vancouver, Canada; Proc . of the first P
an Pacific Symposium, Vancouver, Canada, July 23-2
7, 1986, 57-58., Or Proceeding of the Symposium on Chemical Sensors; Proc. Of
the Symposium on Chemical Sensors, PV87-9, 327-33
Reported on 3, The suction leachate is a small amount of liquid obtained by vacuum-suctioning a portion of the skin surface from which the stratum corneum is removed, such as an arm, and is considered to be a liquid interstitial fluid of subcutaneous tissue or a liquid filtered under reduced pressure from a capillary wall. Have been. Because this suction leachate has a lower protein concentration than blood,
There is a feature that the amount of protein attached to the sensor surface during measurement can be reduced, and the life of the sensor can be extended. Further, since the suction leachate is collected percutaneously, unlike the conventional blood sampling, it is considered to be an advantageous method from the viewpoint of reducing the pain given to the subject and preventing infection with pathogenic bacteria.

[0003] As a method of collecting suction leachate, FIG.
A method of collecting a suction leachate using the suction leachate collection device shown in FIG. 3 has been proposed (Japanese Utility Model Application No. 2-29235).
issue). FIG. 2 is a cross-sectional view of a conventional suction leachate collecting apparatus,
FIG. 3 is a plan view showing the structure of the mesh spacer. The suction leachate collection device consists of a cell and a metal ring, etc.
The cell comprises a cell member 1 and a lid 6 detachably attached thereto.
Consists of The cell member 1 has a sampling port 2 communicating with each other,
It is formed of a cylindrical member forming the connection hole 3 and the tank portion 4 and is formed of a transparent synthetic resin material such as an acrylic resin or a vinyl chloride resin so that the inside can be seen. Groove 23 formed on the side of opening edge 12 where sampling port 2 is located
, An outer peripheral portion of a metal ring 20 is detachably mounted. As shown in FIG. 3, a mesh spacer 5 (a stainless steel 150) is formed inside the metal ring 20.
Mesh) is spot-welded by the holding ring 22. A lid 6 is incorporated on the back surface of the cell member 1 via an O-ring 7 to seal the tank unit 4. Also,
A suction port 8 communicating with a suction source (not shown) is provided in the lid 6.
Is provided. 9 is a part of the belt assembled on the cell member 1, and 10 is a part of the skin surface. In addition, the mesh-like spacer 5 has a skin surface 10 at the time of suction under reduced pressure.
And prevents the collection port 2 from adhering to the bottom surface of the collection port 2, thereby ensuring stable collection of the suction leachate. The method for collecting the suction leachate in the present apparatus is as follows. After the cell is placed on the skin surface 10 such as an arm and fastened and fixed with a belt 9, the suction port 8 is connected to a vacuum pump (not shown) which is one of the suction sources. .) To reduce the pressure inside the cell. In this state, the suction leachate 11 is generated from the skin surface 10. The suction leachate 11 is transmitted through the mesh spacer 5, passes through the sampling port 2 and the connection hole 3, and is stored in the tank unit 4.

[0004]

In the conventional suction leachate collecting apparatus described above, the metal mesh spacer 5 is sandwiched by the holding ring 22 inside the metal ring 20 and then joined by spot welding. It takes a lot of man-hours,
Cost is high. In addition, since the mesh spacer 5 is made of a metal such as stainless steel as a material, there is a problem that it causes rash or invasion of the skin. The purpose of this invention is
It is an object of the present invention to solve such a conventional problem and to provide a suction leachate collection device which can be inexpensively implemented by eliminating skin damage.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a spacer in contact with the skin, and a communication between the spacer and the suction source mounted on one end. A cell in which a tank portion to be formed is provided, and a sampling device for sucking and collecting a percutaneously extracted leachate into the tank portion, wherein the spacer is made of a resin mesh spacer, and A suction leachate collecting apparatus is formed from a resin frame which is integrally formed on the outer periphery of the mesh spacer and is detachably attached to the cell.

[0006]

The present invention has solved the conventional problems by adopting the above configuration. That is, since the resin mesh spacer gently contacts the skin, rash and invasion do not occur. In addition, since a spacer ring that integrally forms a resin frame by an injection molding method on the outer peripheral portion of the resin mesh spacer is employed, the number of parts and the number of manufacturing steps are reduced, and the manufacturing cost can be significantly reduced.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. FIG. 1 is a front sectional view of one embodiment of the suction leachate collection device of the present invention. The suction leachate collection device of the present invention includes a cell including a cell member 1a, a lid 6 incorporated into the cell member 1a via an O-ring 7, and a spacer ring 21.
And a belt 9 and the like. As shown in FIG. 1, a sampling port 2, a connection hole 3, a tank part 4, and a suction port 8 are formed in the cell so as to communicate with each other. The spacer ring 21 is provided on the opening edge 12a of the sampling port 2 of the cell member 1a. The spacer ring 21 is, for example, a circular mesh spacer 5a woven with nylon or polyester.
And a frame 2 integrally formed by injection molding on the outer periphery thereof
4 and the frame 24 is detachably mounted in the groove 23 provided in the opening edge 12a. The mesh spacer 5a is arranged on the same plane as the opening edge 12a and comes into contact with the skin surface 10.

[0008] The suction of the leachate by the suction leachate collection apparatus having the above structure is performed as follows. The entire cell is placed on the skin surface 10 and the spacer ring 21 is attached to the skin surface 1.
0 and is fixed with a belt 9. When the inside of the cell is depressurized by connecting the suction port 8 to a vacuum pump (not shown), the suction leachate 11 is suctioned percutaneously from the skin surface 10 into the tank portion 4 and stored. The spacer ring 21 used in the present invention has an advantage that not only the tension and the flatness of the mesh spacer 5a are good, but also the manufacturing cost is extremely low. Furthermore, since the material of the mesh spacer 5a is made of nylon or the like, it is gently in contact with the skin, so that rash and invasion do not occur.

[0009]

[Effects of the Invention] As described above, the suction leachate collection device of the present invention reduces the manufacturing cost by adopting the spacer ring in which the resin frame and the mesh spacer are integrally manufactured by the injection molding method. can do. Also,
The reticulated spacer is gentle on the skin and has no rash or invasion of the skin, and therefore has an extremely large effect in collecting aspirated exudates in clinical examinations.

[Brief description of the drawings]

FIG. 1 is a front sectional view showing one embodiment of a suction leachate collecting device of the present invention.

FIG. 2 is a front sectional view showing an example of a conventional suction leachate collecting apparatus.

FIG. 3 is a plan view showing a structure of a mesh spacer.

[Explanation of symbols]

 Reference Signs List 1a Cell member 2 Sampling port 3 Connection hole 4 Tank part 5, 5a Reticulated spacer 6 Lid 7 O-ring 8 Suction port 9 Belt 10 Skin surface 11 Suction leachate 12, 12a Opening edge 20 Ring 21 Spacer ring 22 Press ring 23 Groove 24 Frame

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Claims (1)

(57) [Scope of request for utility model registration] 1. A device comprising: a spacer that comes into contact with the skin; and a cell that is formed on one end face and that internally forms a tank portion that communicates with the spacer and the suction source. A sampling device for sucking and extracting a sucked leachate into the tank portion, wherein the spacer is integrally formed on a resin mesh spacer and an outer periphery of the mesh spacer and is detachably attached to the cell. A suction leachate collection device formed from a resin frame to be formed.