JPH11244263A - Automatic liquid sampling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compact and lightweight device capable of sampling blood with age without necessitating human labor. SOLUTION: This automatic liquid sampling device is provided with a tube 1 of which one end is connected with a nozzle 2 or paracentetic instrument and the other end is connected with the nozzle 2 or a storage bag for desired circulation agent, a drug pump 4 feeding liquid in the tube in a predetermined direction, a branching pipe 5 branching liquid in the tube 1, a vacuum sampling tube connected with the branching pipe 5, and a cam mechanism 19 leading liquid into each vacuum sampling tube from the branching pipe 5 with age.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic liquid collecting apparatus for collecting a liquid from a specimen such as an animal.

[0002]

2. Description of the Related Art Conventionally, when a fluid such as blood is collected from an animal sample or the like over time, the experimenter has conventionally approached the animal at a predetermined time and collected blood with an appropriate blood sampling device. When an experimenter approaches an animal frequently, psychological stimulation is applied to a domestic animal, and measured values such as blood levels of various hormones and metabolites may be different from those in a natural state.

[0003] Therefore, there is a demand for the development of a device capable of collecting blood instantaneously over time without allowing the experimenter to approach livestock. And, of course, those devices must be small and lightweight. Of course, these blood collection devices
General liquid other than blood, for example, applied to the collection of liquid over time in rivers and lakes, etc., in this specification,
The description will be made on the assumption that animal blood is collected.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a small and lightweight device which can collect blood over time without manual intervention.

[0005]

SUMMARY OF THE INVENTION The gist of the present invention is to provide a tube having a nozzle or puncture device connected to one end and a nozzle or a bag for storing a desired drug connected to the other end.
A pump for feeding the liquid in the tube in a predetermined direction, a branch pipe for branching the liquid in the tube, a vacuum collection pipe connected to the branch pipe, and a cam mechanism for passing the liquid from the branch pipe to each vacuum collection pipe with time. An automatic liquid sampling apparatus comprising: In the present invention, the liquid is mainly human or animal blood, but includes any liquid such as water in rivers or lakes, and samples these liquids over time to determine the passage of time and the It is intended to examine the components.

In the present invention, the nozzle or puncture device connected to the end of the tube is for injecting and discharging liquid.
In the case of blood, a catheter is used. In the case of the circulation type, a nozzle or a puncture device is connected to both ends of the tube, and in the case of the replacement type, a bag for storing a desired drug is connected to the other end of the tube. A pump is used to send the liquid in the tube in a predetermined direction, preferably a peristaltic pump.

[0007] Further, a branch pipe for branching the liquid in the tube is arranged in the middle of the tube, and a vacuum collection pipe is connected to the tip of each branch tube via the branch tube. The branch tubes are individually opened and closed by the control means, and the liquid is conducted to the vacuum collection tube every set time. Describing this control means, there is provided a cam disk that rotates synchronously according to the number of branch tubes along the branch tube,
The cam disc has cam holes corresponding to the holes of the rotation control disc.

Each branch tube is provided with a cam rod which is supported by the support and moves up and down along the peripheral surface of the cam disk. The cam rod falls into the cam hole to open the branch tube, and the vacuum sampling tube is opened. Aspirate liquid. After a certain time, the cam rod is pushed back, the branch tube is closed, and one sampling is completed. The operation is performed for each branch tube at different times.

[0009]

Since the present invention is configured as described above, in the case of a circulation type, when a nozzle or a catheter connected to both ends of the tube is attached to the body of a livestock and the pump is operated, blood is introduced into the tube. Circulates and blood is collected over time by the control means into a liquid collection tube connected to the open tube.

[0010] In the case of the replacement type, a single nozzle or puncture device connected to one tube is attached to the livestock, a suction operation is performed by a pump, blood is collected in the tube and the branch tube, and then the pump is reversed. And fill the tube, branch, and catheter with the desired drug. When the blood fills the tube and the branch tube, the branch tube is closed and a single collection is performed.

In the case of the replacement type, in order to prevent blood coagulation,
In the initial state, the tube is filled with an anticoagulant. Induces blood into the tube to expel the anticoagulant. The displaced anticoagulant is stored in the bag opposite the catheter. After the branch tube is opened and collected in the vacuum collection tube, the branch tube is closed, and the anticoagulant filled in the bag is fed into the tube again. This is repeated for the number of vacuum collection tubes.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, FIG. 1 shows a circulation type, FIG. 2 shows a replacement type, 1 is a tube, 2 is a catheter, 3 is livestock, 4 is a peristaltic pump, 5 is a branch pipe, 6 Is a bag. The bag 6 is filled with an anticoagulant. Reference numeral 7 denotes a branch tube 7. A needle is connected to the tip of the branch tube 7, and the needle penetrates into the vacuum collection tube 8. 9 is blood. 10 is a cam disk provided corresponding to each branch tube 7,
The cam disk 10 is driven by a 12 volt DC motor, and is controlled to rotate by 15 degrees using the optical disk 17 and the optical disk 18. 19 indicates a cam mechanism.

11 is a cam hole, 12 is a cam rod, 13
Is a support portion of the cam rod 12. When the cam rod does not fall into the cam hole, the branch tube is closed by the cam rod and the support portion, and when the cam rod falls into the cam hole, the branch tube is opened. Each disk 10 is supported on a common shaft 14 continuously. Vacuum collection tubes connected to the branch tube are arranged on both sides of the branch tube. Reference numeral 15 denotes a control panel, and 16 denotes a housing.

[0014]

[Effect] Since the present invention is configured as described above,
If a catheter or nozzle is attached to a livestock or other object to be collected, the cam disk rotates under the set conditions and blood or the like is collected when the cam rod falls into the cam hole,
This is to automatically collect an instantaneous sample over time.

Therefore, proper sampling can be performed without giving psychological stress accompanying the approach of the experimenter to the animal or the like. The cam disks are arranged in a row on a common shaft, the vacuum sampling pipes are arranged on both sides of the branch pipe, and a peristaltic pump is used. It is also possible to attach and collect.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a circulation type.

FIG. 2 is a schematic diagram of a substitution formula.

FIG. 3 is a plan view of a branch pipe and the like.

FIG. 4 is a partial sectional side view of FIG. 3;

[Explanation of symbols]

1-tube, 2-catheter, 3-livestock, 4-peristaltic pump, 5-branch tube, 6-bag, 7-branch tube, 8-vacuum collection tube, 9-blood, 10-cam disk, 11- Cam hole, 12-cam rod, 13-support, 14-
Shaft, 15-control panel, 16-housing, 17-rotation control disk, 18-optical sensor, 19-cam mechanism

 ──────────────────────────────────────────────────続 き Continuation of the front page (71) Applicant 598033826 Akihiro Yamada 768 Senbonmatsu, Nishinasuno-cho, Nasu-gun, Tochigi Pref. Ministry of Agriculture, Forestry and Fisheries (71) Applicant No. 6 (72) Inventor Naomaru Umeda 768 Senbonmatsu, Nishinasuno-cho, Nasu-gun, Tochigi Pref. (72) Inventor Akihiro Yamada 768 Senbonmatsu, Nishinasuno-cho, Nasu-gun, Tochigi Pref.Agriculture, Forestry and Fisheries Ministry of Agriculture, Forestry and Fisheries

Claims (5)

[Claims] 1. A tube having one end connected to a nozzle or a puncture device and the other end connected to a nozzle or a bag for storing a desired circulating agent, a drug pump for feeding the liquid in the tube in a predetermined direction, and a liquid for pumping the liquid in the tube. An automatic liquid collecting apparatus, comprising: a branch pipe for branching; a vacuum collection pipe connected to the branch pipe; and a cam mechanism for passing the liquid from the branch pipe to each vacuum collection pipe with time. 2. The automatic liquid collecting apparatus according to claim 1, wherein the liquid is blood, and the desired drug is an anticoagulant. 3. The automatic liquid collection device according to claim 1, wherein the nozzle is a catheter. 4. The automatic liquid sampling apparatus according to claim 1, wherein said pump is a peristaltic pump. 5. The automatic liquid as claimed in claim 1, wherein the cam disks are continuously arranged on a common axis corresponding to the branch tubes of the branch tube, and the vacuum sampling tubes are arranged on both sides of the branch tube. Sampling equipment.