JP2015110197A - Capillary nozzle, application method thereof and fixed-quantity collection apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a capillary nozzle capable of collecting extremely easily a fixed-quantity of trace liquid from a container storing the liquid, and dropping the liquid onto a necessary spot.SOLUTION: A capillary nozzle has a constitution including a suction port for sucking liquid by capillary phenomenon on one side, a discharge port for discharging sucked and collected liquid on the other side, and an internal cavity to which a capillary treatment is applied in order to allow communication between the suction port and the discharge port, and to collect a fixed quantity of the liquid.

Description

  The present invention relates to a capillary nozzle capable of quantitatively collecting a small amount of liquid with high reproducibility and easily discharging the collected quantitative liquid, a method of using the same, and a quantitative sampling device.

  As a technique for collecting a trace amount of a specimen (hereinafter referred to as a liquid) using a capillary phenomenon, Patent Document 1 describes a trace liquid collection / dilution / dispensing method and apparatus using a capillary tube. The invention of Patent Document 1 is provided with a holding portion for holding in a part of a capillary tube, the tip of the capillary tube is brought into contact with the liquid, and a small amount of a quantitative liquid is collected by a capillary phenomenon. Only the capillary tube portion is inserted into a soft resin container containing the diluted solution and stirred to dilute the liquid, and the diluted liquid is used for measurement.

JP 2012-26997 A

  According to the invention of Patent Document 1, a holding part is provided to enable a small-sized capillary to be handled by hand. However, when the capillary is inserted into the diluent, it is necessary to separate the holding part, which is inconvenient. Met. Moreover, since the capillary tube containing the liquid is inserted into the diluent, there is a problem that it is impossible to confirm that the liquid in the capillary tube has sufficiently dissolved in the diluent.

  It is an object of the present invention to provide a capillary nozzle that allows a very small amount of liquid to be collected from a container containing the liquid so that it can be dripped at a required location.

In order to solve the above problems, the present invention
(1)
A suction port for sucking liquid by capillary action on one side, a discharge port for discharging the suctioned / collected liquid on the other side, and an interior that is connected to the suction port and the discharge port and subjected to capillary processing for quantitatively collecting the liquid A capillary nozzle having a cavity.
(2)
A suction port for sucking liquid by capillary action on one side, a discharge port for discharging the suctioned / collected liquid on the other side, and an interior that is connected to the suction port and the discharge port and subjected to capillary processing for quantitatively collecting the liquid A capillary nozzle comprising a tube with a cavity,
The tube is inserted into a flexible container that contains a liquid, and other than the discharge port is closely attached to the container,
As the inlet contacts the liquid, the liquid is sucked into the internal cavity by capillary action,
Flip the container upside down with the tube inserted,
It was set as the structure of the capillary nozzle characterized by dripping the said extract | collected liquid by pressing the said container.
(3)
A suction port for sucking liquid by capillary action on one side, a discharge port for discharging the suctioned / collected liquid on the other side, and an internal cavity that is connected to the suction port and the discharge port and subjected to capillary processing for quantitatively collecting the liquid A capillary nozzle comprising: a tube provided; and a lid that is provided on a side surface of the tube and is fitted to an opening of a container that contains a liquid;
The lid is fitted to the container, and the suction port comes into contact with the liquid so that the liquid is sucked into the internal cavity by capillary action,
Inverting the sealed container upside down while holding the tube in the container,
It was set as the structure of the capillary nozzle characterized by dripping the said extract | collected liquid by pressing the said container.
(4)
The tube and the lid are integrally formed, and the capillary nozzle configuration according to (3) is provided.
(5)
The tube is provided on the suction port side and includes a capillary portion for quantitatively sucking the liquid with an internal diameter that exhibits capillary action, and a main body with an internal diameter that does not exhibit capillary action except for the capillary section,
The capillary nozzle according to any one of (1) to (4), wherein a stepped portion is formed in the internal cavity at a connecting portion between the capillary portion and the main body to perform the capillary treatment. The configuration was as follows.
(6)
Capillary nozzle having an inlet for sucking liquid by capillarity on one side, an outlet for discharging liquid sucked / collected on the other, and an internal cavity that communicates the inlet and outlet and is subjected to liquid capillary processing The
Forming the dropper shape by bringing the suction port into contact with the liquid contained in a flexible container and sealing the portion other than the discharge port;
When the suction port comes into contact with the liquid, the liquid is quantitatively sucked into the internal cavity by capillary action,
The tube was held in the container and the container was turned upside down,
It was set as the structure of the usage method of the capillary nozzle characterized by dripping the said extract | collected liquid from the said discharge outlet by pressing the said container.
(7)
A flexible container with an open top and a bottom where liquid can be placed;
A lid fitted into the opening;
A suction port for sucking liquid by capillary action on one side, a discharge port for discharging the suctioned / collected liquid on the other side, and an internal cavity subjected to capillary treatment for quantitatively collecting the liquid while communicating the suction port and the discharge port. A tube with
Consists of
After fitting the lid to the opening of the container, let the tube pass through the lid and make the other than the discharge port closely contact the lid,
Liquid is sucked into the internal cavity by capillary action when the suction port contacts the liquid,
Flip the hermetic container upside down while passing through the tube,
It was set as the structure of the fixed_quantity | quantitative_collection apparatus characterized by dripping the said extract | collected liquid by pressing the said container.
(8)
A flexible container with an open top and a bottom where liquid can be placed;
A suction port for sucking liquid by capillary action on one side, a discharge port for discharging the suctioned / collected liquid on the other side, and an internal cavity that is connected to the suction port and the discharge port and subjected to capillary processing for quantitatively collecting the liquid A capillary nozzle comprising a tube provided and a lid provided on a side surface of the tube and fitted into an opening of the container;
Consists of
The lid is fitted to the container, and the suction port comes into contact with the liquid so that the liquid is sucked into the internal cavity by capillary action,
Inverting the sealed container upside down while holding the tube in the container,
It was set as the structure of the fixed_quantity | quantitative_collection apparatus characterized by dripping the said extract | collected liquid by pressing the said container.

  According to the present invention, when a capillary nozzle having a suction port and a discharge port is hermetically fitted to a container containing liquid, the suction port of the capillary nozzle comes into contact with the liquid and a minute amount of liquid is sucked into the capillary part, When the container is turned upside down in this state and the suction port is separated from the liquid, a minute amount of liquid is collected in the internal cavity of the capillary nozzle, so that the minute amount of liquid collected by simply pressing the flexible container is collected. Can be dripped at a desired location. Therefore, the handling of micro-quantitative liquid collection is extremely easy, and the structure is simple and easy to implement.

It is a front view (left-right side surface) of an example of the capillary nozzle of this invention. It is a top view of the capillary nozzle of FIG. It is a bottom view of the capillary nozzle of FIG. It is a cross section (FIG. 2A-A ') schematic diagram just before inserting the capillary nozzle of FIG. 1 into a container. It is a cross-sectional schematic diagram when a capillary nozzle is fitted in the opening of the container after FIG. 4 and the capillary is brought into contact with the liquid. It is a cross-sectional schematic diagram when the container is turned upside down with the capillary nozzle fitted after FIG. It is a cross-sectional schematic diagram which shows a mode that the trace amount liquid extract | collected by pressing the right and left side surfaces of a container from the state of FIG.

  Hereinafter, the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited to an Example.

  As shown in FIGS. 1 to 5, the capillary nozzle 1 according to the present invention includes a tube 2 and a lid 3.

  The tube 2 includes a capillary tube portion 2a and a main body 2c. In the capillary part 2a, a hollow holding part 2f having an inner diameter that exhibits a capillary phenomenon passes through both ends of the capillary part 2a, and a minute amount of liquid is sucked into the holding part 2f from the suction port 2b by a capillary phenomenon. It is configured.

  The main body 2c is formed with a cavity 2e having an inner diameter that does not exhibit capillary action. The cavity 2e penetrates both ends of the main body and communicates with the holding portion 2f of the capillary portion 2a, and forms a discharge path 2g for discharging and dropping the liquid sucked in the capillary portion 2a to the outside.

A stepped portion 2h is formed in the cavity of the connecting portion between the capillary portion 2a and the main body 2c due to a difference in inner diameter. One end of the discharge path 2g is in the step portion 2h, and the other end communicates with the discharge port 2d. The stepped portion 2h functions to stop the rise of the suction liquid level when the capillary portion 2a sucks the liquid due to the capillary phenomenon. Thereby, the holding | maintenance part 2f of the capillary part 2a can extract | collect the predetermined | prescribed micro fixed quantity liquid prescribed | regulated by the internal diameter and length of a capillary to the holding | maintenance part 2f.

  The lid 3 has a fitting portion 3a for fitting to the inner wall surface 4b of the container when the capillary nozzle 1 is inserted into the container 4, and a collar 3b that comes into contact with the upper surface 4c of the container 4, as shown in FIG. As described above, the discharge port 2d is opened at the upper part of the main body 2c and is positioned on the outer periphery of the main body 2c and is airtightly fixed.

  When the capillary nozzle 1 is formed, the main body 2c and the lid 3 can be integrally formed with the capillary portion 2a. Note that the tube 2 may be formed by a method in which the capillary portion 2a and the main body 2c are separated and the capillary portion 2a is inserted and fixed in the cavity 2e of the main body 2c. Further, the lid 3 is separated, and the lid 3 forms a cavity having an inner diameter suitable for the outer diameter of the main body 2c, and the main body 2c whose outer diameter gradually increases toward the upper side is inserted into the cavity of the lid 3. The capillary nozzle 1 may be formed by a method such as fitting.

  In FIG. 4, the container 4 has an opening 4 a that is open at the top, and has a bottomed flexible container for containing the collected liquid 5. The capillary nozzle 1 is inserted into the container 4 containing the liquid 5, and as shown in FIG. 5, the capillary nozzle 1 is fitted into the container 4 at the fitting portion 3a and the collar 3b to seal both, and only the discharge port 2d. To the outside atmosphere.

  When the capillary nozzle 1 is inserted into the container 4 and the suction port 2b comes into contact with the liquid 5, the liquid 5 rises by a capillary phenomenon from the suction port 2b to the stepped portion 2h to the hollow holding portion 2f of the capillary portion 2a. A minute amount of liquid is retained in 2f. Since the amount of the collected liquid 5a held in the holding part 2f is defined by the inner diameter and length of the capillary part 2a, a finely quantified liquid can be collected with good reproducibility.

  As shown in FIG. 6, when the container 4 is turned upside down, the collected minute amount of liquid is held as the collected liquid 5 a in the holding portion 2 f and the suction port 2 b is separated from the liquid 5. Thereafter, as shown in FIG. 7, if the flexible container 4 is pressed from both sides, a minute amount of the collected liquid 5a is pushed out by the air 5b enclosed in the container above the liquid 5, and passes through the discharge passage 2g. The droplet 5c can be dropped at a required location.

  As shown in FIGS. 5 to 7, when the capillary nozzle 1 is hermetically fitted to the container 4, the capillary nozzle 1 and the container 4 are integrated into a dropper-like structure to dispense a predetermined amount. The lid 3 and the capillary nozzle 1 form a quantitative sampling device. The lid 3 and the capillary nozzle 1 may be integrated or separated.

  In the above description, the physical stepped portion 2h has been described as a configuration in which a capillary processing for expressing a capillary phenomenon and quantitatively collecting a liquid, that is, a quantitative sampling processing is performed. However, the present invention is not limited to this. Instead, the capillary treatment can be configured so that the liquid can be collected by a capillary phenomenon using a method such as application of emulsifier, mixing, plasma treatment, and various coating treatments.

  In addition, the lid 3 is configured integrally with the container 4 or is fitted in the container 4 in advance to form a container with a lid. After the liquid is put into the container, the tube 2 is inserted into the cavity of the lid 3 and hermetically fixed. Alternatively, a dropper may be formed.

DESCRIPTION OF SYMBOLS 1 Capillary nozzle 2 Tube 2a Capillary part 2b Suction port 2c Main body 2d Discharge port 2e Cavity 2f Holding part 2g Discharge path 2h Step part 3 Lid 3a Fit part 3b Collar 4 Container 4a Opening part 4b Inner wall surface 4c Upper surface 5 Liquid 5a Collection liquid 5b air

Claims (8)

A suction port for sucking liquid by capillary action on one side, a discharge port for discharging the suctioned / collected liquid on the other side, and an interior that is connected to the suction port and the discharge port and subjected to capillary processing for quantitatively collecting the liquid And a capillary nozzle. A suction port for sucking liquid by capillary action on one side, a discharge port for discharging the suctioned / collected liquid on the other side, and an interior that is connected to the suction port and the discharge port and subjected to capillary processing for quantitatively collecting the liquid A capillary nozzle comprising a tube with a cavity,
The tube is inserted into a flexible container that contains a liquid, and other than the discharge port is closely attached to the container,
As the inlet contacts the liquid, the liquid is sucked into the internal cavity by capillary action,
Flip the container upside down with the tube inserted,
A capillary nozzle, wherein the collected liquid is dropped by pressing the container. A suction port for sucking liquid by capillary action on one side, a discharge port for discharging the suctioned / collected liquid on the other side, and an internal cavity that is connected to the suction port and the discharge port and subjected to capillary processing for quantitatively collecting the liquid A capillary nozzle comprising: a tube provided; and a lid that is provided on a side surface of the tube and is fitted to an opening of a container that contains a liquid;
The lid is fitted to the container, and the suction port comes into contact with the liquid so that the liquid is sucked into the internal cavity by capillary action,
Inverting the sealed container upside down while holding the tube in the container,
A capillary nozzle, wherein the collected liquid is dropped by pressing the container. The capillary nozzle according to claim 3, wherein the tube and the lid are integrally formed. The tube is provided on the suction port side and includes a capillary portion for quantitatively sucking the liquid with an internal diameter that exhibits capillary action, and a main body with an internal diameter that does not exhibit capillary action except for the capillary section,
5. The capillary treatment according to claim 1, wherein a stepped portion is formed in the internal cavity at a connection portion between the capillary portion and the main body to perform the capillary treatment. Capillary nozzle. Capillary nozzle having an inlet for sucking liquid by capillarity on one side, an outlet for discharging liquid sucked / collected on the other, and an internal cavity that communicates the inlet and outlet and is subjected to liquid capillary processing The
Forming the dropper shape by bringing the suction port into contact with the liquid contained in a flexible container and sealing the portion other than the discharge port;
When the suction port comes into contact with the liquid, the liquid is quantitatively sucked into the internal cavity by capillary action,
The tube was held in the container and the container was turned upside down,
A method of using a capillary nozzle, wherein the collected liquid is dropped from the discharge port by pressing the container. A flexible container with an open top and a bottom where liquid can be placed;
A lid fitted into the opening;
A suction port for sucking liquid by capillary action on one side, a discharge port for discharging the suctioned / collected liquid on the other side, and an internal cavity subjected to capillary treatment for quantitatively collecting the liquid while communicating the suction port and the discharge port. A tube with
Consists of
After fitting the lid to the opening of the container, let the tube pass through the lid and make the other than the discharge port closely contact the lid,
Liquid is sucked into the internal cavity by capillary action when the suction port contacts the liquid,
Flip the hermetic container upside down while passing through the tube,
A quantitative sampling apparatus, wherein the collected liquid is dropped by pressing the container. A flexible container with an open top and a bottom where liquid can be placed;
A suction port for sucking liquid by capillary action on one side, a discharge port for discharging the suctioned / collected liquid on the other side, and an internal cavity that is connected to the suction port and the discharge port and subjected to capillary processing for quantitatively collecting the liquid A capillary nozzle comprising a tube provided and a lid provided on a side surface of the tube and fitted into an opening of the container;
Consists of
The lid is fitted to the container, and the suction port comes into contact with the liquid so that the liquid is sucked into the internal cavity by capillary action,
Inverting the sealed container upside down while holding the tube in the container,
A quantitative sampling apparatus, wherein the collected liquid is dropped by pressing the container.

Images