JPH0416675Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to an improvement of a medical device for blood collection used when collecting blood from a person collecting blood.

(B) Prior Art As shown in FIG. 2, a conventional medical device for blood collection includes a blood collection needle 11 that punctures a blood vessel of a person collecting blood through a blood collection tube 12, and blood transfusion ports 13, 13 and protectors 14, 14 attached thereto. It was attached to blood collection bag 15.

In addition, as shown in Figure 3, in order to separate blood cells and plasma components in the collected blood, a blood collection bag 1 is used.
6 is attached to a slave bag such as a plasma separation bag 18 via a connecting tube 17.

Furthermore, although not shown, there is a blood collection bag with a plurality of child bags attached to it in order to fractionate blood into multiple components such as red blood cells, white blood cells, blood platelets, and creopisitate.

(c) Problems that the invention aims to solve However, these medical devices only collect blood from the person collecting blood, and do not contain replenishing components of body fluids,
For example, red blood cells, white blood cells, which are cellular components in blood,
Because there is no way to inject platelets, glucose, Ringer's solution, or other nutritional supplements, some blood samplers complain of anemia symptoms such as headaches and dizziness after blood collection, and it takes time to recover normal physical strength. teeth,
I had to keep it quiet for a while.

Recently, 400ml blood collection has been considered in Japan as well as in Europe and the United States, and if this is implemented, the frequency of anemia symptoms in blood collectors will increase.
It is also presumed that the resting time necessary to restore normal physical strength due to the temporary loss of blood becomes longer.

In addition, after blood collection is completed, each person receiving blood is given a supplement to supplement the human body's nutrients to replace lost blood.
Vegetable juice, yogurt, etc. were given by oral administration. Furthermore, for patients with severe anemia symptoms,
Nutrients such as glucose and Ringer's solution were injected using a syringe.

(d) Means for solving the problems An embodiment of the present invention will be explained with reference to the drawings. Reference numeral 1 denotes a blood collection bag containing a blood preservation solution such as ACD, ACD-A, CPD, or CPD-A solution, which is connected to a blood collection tube 3 via a communication piece 2 . The blood collection tube 3 is connected to a liquid inlet/outlet tube 5 (used for blood collection and injection of body fluid replenishment components) via a joint 4. Inlet needle 6 is attached.

7 is blood components of the same blood type as the person collecting blood, such as at least one or more cell components of red blood cells, white blood cells, and platelets, diluted with physiological saline;
Alternatively, a body fluid infusion bag containing nutrients such as glucose or Ringer's solution is attached to a fluid transfer tube 9 via a communication piece 8, and the fluid transfer tube 9 is connected to the joint 4.

Further, a roller clamp 10 for flow rate adjustment is attached to the middle of the liquid transfer tube 9.

As mentioned above, in this invention, body fluid injection bag 7
The blood collection bag 1 and blood collection bag 1 are integrally formed through a joint 4, and a body fluid replenishment circuit is formed by the body fluid injection bag 7, the liquid transfer tube 9, the joint 4, the liquid lead-in/out tube 5, and the lead-in/out needle 6. ing.

The blood sampling medical device of the present invention is used in the following manner. Cut the communication piece 2 and insert the blood collection tube 3.
After opening the blood collection bag 1, the lead-in/out needle 6 is inserted into the blood vessel of the person collecting blood. Blood is introduced into the liquid inlet/output tube 5 due to blood pressure, and this blood is led into the blood collection bag 1 through the joint 4 and the blood collection tube 3. After collecting a predetermined amount of blood, squeeze the blood remaining in the blood collection tube 3 using roller pliers, etc., and completely store it in the blood collection bag 1. Cut at position A using welder welding, and separate the body fluid injection bag 7, liquid transfer tube 9, joint 4, liquid lead-in/out tube 5, and lead-in/out needle 6 that form the body fluid replenishment circuit with the blood collection bag 1 body. do.

Next, the communication piece 8 of the body fluid injection bag 7 is cut, and the replenishment component of the body fluid in the body fluid injection bag 7 is passed through the liquid transfer tube 9, the joint 4, the liquid introduction/output tube 5, and the introduction/output needle 6 to the blood collector. injected into the blood vessels of the patient. The flow rate of the replenishing component of the body fluid to be injected is adjusted as appropriate by the roller clamp 10.

(e) Effects As described above, in the present invention, the body fluid injection circuit formed by the body fluid injection bag 7, the liquid transfer tube 9, the joint 4, the liquid lead-in/out tube 5, and the lead-in/out needle 6, and the blood collection bag 1. Because it is integrally formed, (a) blood collection and body fluid replacement components can be simultaneously performed in a completely closed system;

(b) After blood collection is completed, a part of the body fluid replenishment circuit used for blood collection can be reused for replenishing body fluids, allowing immediate injection.

(c) As in the past, oral administration of vegetable juice, yogurt, etc. as nutrients for the human body in place of blood;
Since there is no need to inject nutrients such as glucose and Ringer's solution using a syringe, the preparation work for each nutritional solution does not take much time.

(d) There is no burden on the person collecting blood because the needle only needs to be inserted once.

This is a practically excellent idea with excellent effects such as.

(e) Since a preservation solution is enclosed in the blood collection bag 1, the collected blood is mixed with the preservation solution, and the blood can be kept fresh even while the body fluid replacement components are injected into the patient. can.

[Brief explanation of drawings]

Figure 1 shows the medical device for blood collection of the present invention, Figure 2,
FIG. 3 shows a conventional blood sampling medical device. In the figure, 1 is a blood collection bag, 2 is a communication piece, 3 is a blood collection tube, 4 is a joint, 5 is a liquid inlet/output tube, 6 is a liquid inlet/outlet needle, 7 is a body fluid injection bag, 8 is a communication piece, 9 10 indicates a liquid transfer tube, and 10 indicates a roller clamp.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A blood collection bag containing a blood preservation solution, a body fluid infusion bag containing a body fluid replenishment component, and a fluid inlet/output tube equipped with a fluid inlet/outlet needle via a joint. A blood sampling medical device characterized by being integrally connected. (2) The medical device for blood collection according to item 1 above, wherein the body fluid replenishment component includes at least one cell component of red blood cells, white blood cells, and platelets. (3) The medical device for blood collection according to item 1 above, wherein the body fluid replenishment component includes at least one component of glucose and Ringer's solution.