JPH01175857A - Self blood transfusion set with clamp - Google Patents

Abstract

PURPOSE:To perform self blood transfusion with no loss of physical strength of a blood donor by alternately executing blood-collecting and blood transfusion in good balance and supplementing electrolytic fluid from a mix injecting part. CONSTITUTION:A clamp G of a connecting pipe 37a is opened, and piercing a blood collecting and transfusing needle 20a, a clamp E is opened. Blood is allowed to flow into a main bag 35a via the blood transfusing and collecting needle 20a. After a predetermined quantity of blood is collected, the clamp G and 50a are closed. Clamps A, D are opened, and dripping physiological salt water into a blood transfusing and collecting member 4 from a transfusing member 2, blood is prevented from solidifying. The blood bag is connected to a blood introducing needle 17a, and closing the clamp A and opening B, the blood is transfused through a connection pipe 13a and the blood transfusing and collecting needle 20a. The clamp A is opened, physiological salt water is introduced into the blood transfusing and collecting member 4. Opening clamps H, E, blood is introduced into a main bag 35b through the blood transfusing and collecting needle 20a, and opening the clamp A, physiological salt water is dripped into the blood transfusing and collecting member 4. The clamp E is closed, and electrolytic fluid is supplemented via a mix injecting part 23a and the blood transfusing and collecting needle 20a.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an autologous blood transfusion set that allows transfusion of stored blood and collection of fresh blood at the same time.

[Prior Art and Problems] Currently, blood collected in a plastic bag is used for transfusion within 21 days, but blood that is actually collected is used within about 7 days. If the storage period is prolonged, hemolysis in the blood and the formation of microaggregates will progress, so it is not preferable to use this blood for blood transfusion, and it is desirable to use the collected blood 1 for transfusion as soon as possible. .

Furthermore, currently, the amount of blood that can be collected from a donor at one time is 4.
The limit is 00ml to 500ml. This is because collecting a large amount of blood from a donor at one time has a large effect on the living body (anemia, decrease in blood components, etc.), considering the balance of body fluids. In addition, there is a risk of infection with syphilis, hepatitis, etc. by using blood from other people, so autologous blood transfusion is being established.

Means for Solving Problem E] Therefore, the present invention solves the above problems and performs blood transfusion and blood collection safely and efficiently.Basically, (1) the liquid introduction needle 7a and the connecting tube are 8, 9 and drip tube 11 (2) Connecting pipe 13a and filters 14a, 15 inside
Blood transfusion member 3a consisting of a drip tube 12a loaded with blood transfusion tubes 12a and 16a and attached with a blood introduction needle 17a.
3a, 24a (4) Washing liquid storage member 6 consisting of connecting tubes 27, 28 and waste liquid bag 26 (5) Through connecting tube 37a and connecting tube 38a loaded with communicating piece 39a Parent bag 3 connected to child bag 36a
5a or a connecting member consisting of a connector member 152a and a connecting tube 155a, and the connector member 152a is covered with a protector 154a. 4
3) and 6) a seal integrally formed with (a) a convex holding portion 235 (b) a fitting protrusion 238 (c) a fitting groove 237 at at least one location of the connecting pipe. Member 232 ■ (a) Convex holding part 238 (b) Fitting protrusion 240 (c) Fitting groove 239 (d) Liquid transfer tube mounting groove 241 (e) Liquid transfer tube holding member 242 integrated The formed main body 233 (1) is constructed by attaching at least one clamp 224 formed by integrally forming the sealing member 232 and the main body 233 via a thin hinge portion 234, and each of these constituent members 2.3a, 4 .5a, 6 connecting pipe 41.42.43
The present invention provides an autologous blood transfusion set which is integrally connected via a blood transfusion set.

[Function] With the above configuration, ■ Filling the blood transfusion member 3a with physiological saline from the infusion member 2 ■ Fresh blood from the donor is collected via the transfusion blood collection member 4, introduced into the blood storage member 5a, and clamped. Connecting pipe 3
Completely shut off the liquid flow path 7a ■ Drop the physiological saline from the infusion member 2 into the transfusion blood collection member 4 ■ Transfuse the donor's stored blood to the donor via the blood transfusion member 3 a and the blood transfusion collection member 4. Repeat steps ①, ②, and ② to ensure that the blood collection and infusion are well-balanced, with just enough and too little, alternately to avoid burdening the donor.Finally, electrolyte By replenishing the blood donor with fluid, autotransfusion can be performed without causing the donor to lose physical strength.

Further, since the liquid flow path of the connecting tube 37a is completely blocked, the blood components collected in the blood storage member 5a will not flow back into the connecting tube again.

[Example] FIG. 1 is a schematic diagram showing a first example of an autotransfusion set 1 of the present invention. The autotransfusion set 1 basically consists of infusion members 2. It is composed of blood transfusion members 3a and 3b, blood transfusion and collection member 4, blood storage members 5a and 5b, and washing liquid storage member 6.

The infusion member 2 is loaded with a liquid introduction needle 7a having a needle 7C made of stainless acid or the like implanted in the needle base 7b, a connecting tube 8.9 made of flexible polyvinyl chloride or the like, and a filter lO made of polyamide such as nylon. The drip tube 11 is made of polyvinyl chloride or the like. The blood transfusion member 3a is a drip tube 12 made of polyvinyl chloride or the like.
The drip tube 12a is made up of a connecting tube 13a made of flexible polyvinyl chloride or the like, and 74 filters 14a, 15a, 16a made of polyethylene terephthalate or the like having different pore sizes are loaded inside, and the ends are made of polycarbonate. A connecting tube 18a made of polyvinyl chloride or the like is attached between the needle 17a for introducing blood such as acid and the connecting tube 13a. The transfusion blood collection member 4 includes a needle 2ob made of stainless acid, etc., attached to the needle base 2.
It consists of a blood transfusion needle 20a which is implanted at 0c and has a rotation 120d attached to the needle base 20c, and connecting tubes 21.22 made of flexible polyvinyl chloride or the like, and between the two connecting tubes 21.22 there is a silicone tube. Mixed injection parts 23a and 24a made of polycarbonate acid or the like are provided with puncture buttons 23b and 24b made of rubber or the like embedded therein.

The cleaning liquid storage member 6 includes a waste liquid bag 26 made of flexible polyvinyl chloride or the like and a connecting pipe 27, 28 made of flexible polyvinyl chloride or the like, and a male luer is attached to the end of the connecting pipe 27, 28. 29 and 30 are installed, and connected via a connecting tube 31 made of silicone rubber or the like.

A check valve 33 made of flexible polyvinyl chloride or silicone rubber is attached to the waste liquid inlet 32 of the waste liquid bag 26 .

The blood storage member 5a includes a parent bag 35a and a child bag 36a.
, connecting pipes 37a and 38a, and a communicating piece 39a made of polycarbonate acid or the like is installed inside the connecting pipe 37a.

These components 2.3a, 3b, 4.61, 5a
, 5b, connecting pipes 9.13a, 13b, and 21, respectively.
, 22, 27, 28, 37a, 37b, and 40, and are connected by connecting pipes 41, 42, and 43 made of polyvinyl chloride or the like.

Connecting pipes 9.13a and 13b have roll clamps A, B, and C made of polypropylene acid, etc. Connecting pipes 22, 27, and 40 have Dura clamps D, E, and F made of polypropylene acid, etc. Connecting pipes 37a and 37b have polypropylene acid, etc. The slide clamps G, H and clamps 50a, 50b are connected to the connecting pipe 3.
8a, 38b have clamps 51a, 51b, 5
2a and 52b are attached. Clamp 5Qa, 50
b. The clamps 51a, 51b, 52a, 52b (7) are attached to the parent bags 35a, 35b, child bags 36a,
It is desirable to attach it to a position close to the upper end of 313b.

The liquid introduction needle 7a, the blood introduction needle 17a, and the blood transfusion needle 20a are each covered with needle caps 101, 102, and 103 made of polypropylene acid or the like to prevent them from coming into contact with the outside air.

Next, a method of using the present invention will be explained with reference to FIG.

(1) Priming operation roll clamps A, B, C and Jura clamps D, E,
F is closed and the liquid introduction needle 7a is connected to a container (not shown) filled with physiological saline. The roll clamp A is opened and physiological saline is introduced into the drip tube 11 to a predetermined liquid level while pumping the drip tube 11.

When the liquid level reaches a predetermined level, the roll clamp B is opened and the physiological saline is further introduced into the drip tube 12a through the connecting pipe 13a.

When the specified liquid level is reached, roll clamp C
Open it and similarly introduce physiological saline into the drip tube 12b to a predetermined liquid level. Next is Jura Clamp D.
Open E and F, adjust the degree of opening of roll clamp A, and drop the physiological saline while connecting tubes 4G and 27.
．． 28 is expelled into the waste liquid bag 28 together with the physiological saline, and clamps D, E, and F are closed to complete priming.

(2) Cut the communicating piece 39a of the first blood collection connecting tube 37a, open the slide clamp G, puncture the blood donor with the first transfusion blood collection needle 20a, and open the Jura clamp E.

Blood flows into the parent bag 35a via the blood transfusion needle 20a and the connecting tubes 21, 22, 37a.

After collecting the specified amount of blood, slide clamp G,
Close the clamp 50a.

Once the clamp 50a is closed, it will never open again, so the blood stored in the parent buff 35a will be transferred to the connecting tube 37a.
It does not flow back inside.

Subsequently, roll clamps A and D are opened, and physiological saline is dripped from the infusion member 2 into the transfusion blood collection member 4 via the connecting pipe 40. This can prevent blood from stagnating and coagulating within the ring blood sampling member 4 before proceeding to the next operation. At this time, the blood transfusion needle 20a remains stuck in the blood donor.

This is to maintain a closed system until blood transfusion and blood collection are completed.

(3) Blood transfusion operation A blood bag (not shown) in which blood has been stored and stored in advance from the previous blood collection is inserted into the blood introduction needle 1 of the blood transfusion member 13a.
? Connect to a.

Close roll clamp A, open roll clamp B,
For blood, connect tube 13a, 40.22.211 Blood transfusion needle 20
Blood is transfused to the donor via a. The transfusion speed at this time is preferably about 80 m1/inch (to the extent that the drop does not become a continuous thread along the drip core).

After the blood transfusion in the blood bag (not shown) is completed, roll clamp B is closed.

The roll clamp A is opened again and physiological saline is introduced into the blood transfusion/collection member 4 in order to prevent blood remaining in the blood transfusion/collection member 4 from coagulating.

(4) Cut the second blood sampling communication piece 39b and clamp H and clamp E.
to open.

Blood is introduced into the parent bag 35b via the blood transfusion needle 20a and the connecting tubes 21, 22, and 37b.

After a predetermined amount of blood has been collected, the Jura clamp E and the clamp 50b are closed. Subsequently, the clamp A is opened, and physiological saline is dripped from the infusion member 2 to the blood transfusion member 4.

(5) Closing the end clamp E and replenishing the electrolyte solution prepared in advance to the blood donor via the mixed column part 23a, the connecting tube 21, and the blood transfusion needle 20a.

Finally, connecting pipe 3? a.3? Cut around A and B in b using a cutter or the like to separate the blood storage members 5a and 5b, and store them at 4°C for the next blood transfusion.

Connecting pipe 37a pressed by clamps 50a and 50b
, 3? Since the liquid flow path b is completely cut off from the outside air and maintained airtight, there is no fear that the blood collected in the parent bags 35a and 35b will be contaminated.

As other embodiments of the autotransfusion set of the present invention, it is possible to appropriately combine the numbers of blood transfusion members and blood storage members.

For example, (1) two blood transfusion members (3a, 3b) and three blood storage members (5a, 5b, 5C) (see Figure 2) (2) three blood transfusion members (3a, 3b, 3c) and three blood Storage members (5a, 5b, 5c) (see Figure 3) (3) Three infusion members (3a, 3b, 3c) and four blood storage members (5a, 5b, 5C15d) (see Figure 4)
The following aspects are possible.

Furthermore, the child type embodiment can be implemented by combining the number of blood storage members (5a to 5d) and the capacity of the parent bags (38a to 38d) in the blood storage members (5a to 5d).

As shown in Table 1, the amount of blood to be prepared before blood collection can be determined by combining blood collection patterns according to the donor's health condition and physical strength.

(Left below) Table 1 [Notes] A large amount of blood can be deposited by switching bags every other day.

Also, depending on the amount of hemoglobin from the donor before blood collection, increase the amount by 100ml! It can be changed in units.

A larger amount of blood can be secured.

FIG. 5 is a schematic diagram showing a second embodiment of the autotransfusion set of the present invention. The autotransfusion set 101 basically includes:
Infusion member 102. Blood transfusion members 103a, 103b, blood transfusion collection member 1G4, connection members 151a, 151b, 15
1c, and a cleaning liquid storage member 10B.

The infusion member 102 is loaded with a liquid introduction needle 107a in which a needle 107c made of stainless steel or the like is implanted in a needle base 107b, connecting tubes 108, 109 made of flexible polyvinyl chloride or the like, and a filter 110 made of polyamide such as nylon. The drip tube 111 is made of polyvinyl chloride or the like.

The blood transfusion member 103a is a drip tube 112 made of polyvinyl chloride or the like.
The drip tube 112a consists of a connecting pipe 113a made of flexible polyvinyl chloride or the like, and the drip tube 112a is made of polyethylene terephthalate or the like with different bore sizes (7) 7
4) L/tars 114a, 115a, and IIEI are loaded, and a blood introduction needle 1 made of polycarbonate or the like is attached to the end.
A connecting pipe 118a made of polyvinyl chloride or the like is attached between the connecting pipe 17a and the connecting pipe 113a.

The blood transfusion member 104 has a needle 120b made of stainless steel or the like implanted in a needle base 120c, and a rotary blade 120 attached to the needle base 120C.
It consists of a blood transfusion needle 120a equipped with a needle d and connecting tubes 121 and 122 made of flexible polyvinyl chloride or the like, and puncture buttons 123b and 124b made of silicone rubber or the like are buried between the two connecting tubes 121 and 122. Mixed injection parts 123a and 124a made of polycarbonate or the like are installed.

The cleaning liquid storage member 10B is a waste liquid bag 12B made of flexible polyvinyl chloride or the like and a connecting pipe 12 made of flexible polyvinyl chloride or the like. , 128, the connecting pipe 1
Male lures 129 and 130 are attached to the ends of 27 and 128.
is installed, and connected via a connecting tube 131 made of silicone rubber or the like. A check valve 133 made of flexible polyvinyl chloride or silicone rubber is attached to the waste liquid inlet 132 of the waste liquid bag 12B.

The connecting member 151a consists of a connector member, that is, a male connector 152a and a connecting pipe 155a. 5
A lock nut 153a of the male connector 152a is loosely fitted in the middle of the male connector 1528, and the male connector 1528 and the lock nut 153a are covered with a protector 154a so as not to come into contact with the outside air. The connecting member 151a is made of a material such as polyvinyl chloride, polypropylene, or polycarbonate.

In addition, clamps 171a, 171b, 1 are installed near the connecting pipes 143 of the connecting pipes 155a, 155b, and 155c.
71c is installed.

These component members 102, 103a, 103b,
104.10B, 151a, 151b, 151
c to connecting pipes 10B, 113a, and 113b, respectively.
, and 121 , 122 , 127 , 128 , 14
0 through a connecting pipe made of hard polyvinyl chloride, etc., 14
1, 142, and 143. Connecting pipes 109, 113a, and 113b are fitted with roll clamps A, B, and C made of polypropylene acid, etc.
22, 127, and 140 are equipped with Dura clamps D, E, and F made of polypropylene acid or the like. The liquid introduction needle 107a, the blood introduction needle 117a, and the blood transfusion needle 12Oaj are each covered with needle caps 201, 202, and 203 made of polypropylene acid or the like to prevent them from coming into contact with the outside air.

FIG. 6 shows a blood storage member 105a, a parent bag 158a made of flexible polyvinyl chloride, etc., and a child bag 1, respectively.
5? a is connected via a connecting tube 158a, and a female connector 181a made of a material such as polyvinyl chloride, polypropylene, polycarbonate, etc. is attached to the upper end of the parent bag 156a as a connecting member, and a female connector 181a made of a material such as polyvinyl chloride, polypropylene, polycarbonate, etc. A connecting pipe 159a in which a communicating piece 170a made of, for example, made of polypropylene is disposed, and a connecting pipe 180a, to which a slide clamp G made of polypropylene acid or the like is attached, are connected.

The female connector 181a is covered with a protector 182a to prevent it from coming into contact with the outside air.

Clamps 172, 173, and 174 are attached near the upper end of the parent bag 158a of the connecting tube 159a, the parent bag 158a of the connecting tube 158a, and the child bag 157a.

Next, a method of using the present invention will be explained with reference to FIG.

(1) Priming operation Close roll clamps A, B, C and Jura D, E, F and connect liquid introduction needle 1G7a to a container (not shown) filled with physiological saline. The roll clamp A is opened and physiological saline is introduced into the drip tube 111 to a predetermined liquid level while pumping the drip tube 111.

When the liquid level reaches a predetermined level, roll clamp B is opened and saline is further introduced into the drip tube 112 through the connecting pipe 113a.
Introduce it to the inside of a.

When the specified liquid level is reached, further roll clamp C is applied.
Open it and similarly introduce physiological saline into the drip tube 112b to a predetermined liquid level.

Next, Dura Clamps D, E, and F are opened, and while adjusting the degree of opening of Roll Clamp A, while dripping physiological saline, the air from the connecting pipes 140, 127, and 128 is pumped into the waste liquid bag 12B together with the physiological saline. , and close clamps D, E, and F to complete priming.

(2) Break the protectors 154a and 182a that cover the male connector 152a of the first blood collection connection member 151a and the female connector 181a of the blood storage member 105a, and fit the male connector 152a and female connector 1818 together. In order to securely fit and fix these fitting parts, these fitting parts are further fixed with lock nuts 153a. ), connecting pipe 15
By cutting the communicating piece 170a placed in the middle of 8a,
The blood passages of the connecting tubes 155a and 159a are opened and the transfusion blood collection needle 120a is inserted into the blood donor, and clamps E and G are connected.
to open. Blood is collected through a blood transfusion needle 120a and a connecting tube 121.
, 122, 155a, 180a, 159a and enters the parent bag 158a.

After a predetermined amount of blood has been collected, the slide clamp G and clamp 172 placed in the middle of the connecting tube 180a are closed. Since the connecting tube 59a is completely blocked by the clamp 172, the blood collected in the parent bag 158a is
There is no possibility of backflow into the connecting pipe 159a.

Next, roll clamp A and Dura clamp D are opened, and physiological saline is introduced from the infusion member 102 through the connecting pipe 140.
The blood is dripped into the blood transfusion member 104. This can prevent blood from stagnating and coagulating within the blood transfusion/collection member 104 before proceeding to the next operation. At this time, blood transfusion needle 1
The needle 20a remains punctured in the blood donor in order to maintain a closed system until the blood transfusion and blood collection are completed.

(3) Blood transfusion operation A blood bag (not shown) in which blood has been stored and stored in advance from the previous blood collection is connected to the blood introduction needle 117a of the blood transfusion member 113a.

Close roll clamp A, open roll clamp B,
Blood is connected to connecting tubes 113a, 140°122, 121
, the blood is transfused to the donor via the blood transfusion needle 120a. The speed of blood transfusion at this time is preferably about 601/inch (so that the blood drips down the drip core and does not become a continuous thread).

When the blood transfusion in the blood bag (not shown) is completed, roll clamp B is closed.

The roll clamp A is opened again, and physiological saline is introduced into the blood transfusion member 104 in order to prevent blood remaining in the ring blood collection member 104 from coagulating.

(4) Second Blood Collection A new blood storage member 105b (not shown, the configuration of each component is the same as the above-mentioned 105a, hereinafter, the sixth a is replaced with b) is prepared.

In the same way as the first blood draw, connect the male connector! 52b and the female connector 181b, and connect the communication piece 1? Ob
Cut and attach Jura Clamp E and Slide Clamp 16.
Open 0b.

For blood, the transfusion blood collection needle 120a is connected to the connecting tubes 121 and 122.
, 155b, 180b, 158b, parent bag 15
Enter 6b.

After collecting a predetermined amount of blood, clamp E, 172b is closed. Then, the clamp A is opened, and physiological saline is dripped from the infusion member 102 onto the blood transfusion member 4.

(5) Close the end clamp E and replenish the electrolyte solution prepared in advance to the blood donor via the mixed column part 123a, the connecting tube 121, and the blood transfusion needle 120a.

Finally, the connecting tubes 180a and 1flob are hermetically welded using a welder, and the blood storage members 105a and 105b are separated and stored at 4°C for the next blood transfusion.

In the autotransfusion set of the present invention, by newly adding connecting tubes 143 and 144 as shown in FIG. In addition to the shape and structure, it is also possible to use the blood transfusion ports and brochures of commonly used blood bags. Further, as other embodiments of the connecting member 151a, for example,
As shown in FIG. 8, a female connector tSt (for example, a blood transfusion port used in a normal blood bag) having a thin film 94 formed therein is connected to the other blood storage member 5a.
A needle member 183 capable of breaking the thin membrane 194 (for example, a loketon needle used in normal blood transfusions and infusion sets) may be attached, and the needle member 193 may be covered with a needle cap in addition to a protector. Also good.

In this way, more than ten types of embodiments can be implemented by combining blood storage members with various blood capacities,
As shown in Table 1 above, blood collection patterns are combined according to the donor's health condition and physical strength to determine the amount of blood to be prepared before blood collection.

(The following is a blank space) Next, specific examples of each part of the autotransfusion set of the present invention will be described.

If there are two or more pairs of blood transfusion members, a plurality of connecting tubes 83a and 83b each having blood introduction needles 82a and 82b attached thereto may be attached to one drip tube 61 as shown in FIG. 9(a). Alternatively, as shown in FIG. 9(b), the connecting tube 84 of the infusion member may be attached to the drip tube 81 together with the aforementioned connecting tubes Ha and Hb.

As a result, the number of parts can be reduced by the amount of the removed drip tube.

Specific aspects of the check valve 33 formed in the cleaning liquid storage member 6 are shown in FIGS. 1O and 11, where (a) is a plan view and (b)
) is an AA sectional view and a BB sectional view of (IL).

The check valve 84 shown in FIG. 10 is formed by overlapping two flexible polyvinyl chloride sheets 65 and heat-sealing the ends 8B.

The check valve 67 in FIG. 11 is usually a "duck beak valve".
It is integrally molded from flexible polyvinyl chloride or silicone rubber. 68 is a beak portion formed thin.

By attaching these check valves 64 and 67 to the waste liquid inlet 32 of the waste liquid bag 2B, when pressure is applied from the outside of the waste liquid bag 2B after introducing the cleaning liquid into the waste liquid bag 2θ, the external pressure will be reversed. Since it acts in the direction of crushing the seat 65, B5 of the stop valve 64 or the beak 88 of the check valve 67,
Hygiene is maintained without the used cleaning solution entering the autotransfusion set again.

The male luer 29.30 attached to the end of the connecting pipe 27.28 of the cleaning liquid storage member 6 is used as follows.

When blood is collected by puncturing a blood donor with the blood transfusion needle 20a, if trouble occurs due to clogging of blood cells or the like inside the needle 20b of the blood transfusion needle 20a, remove the connecting tube 31 and insert the male luer 30! For example, as shown in FIG. 13, the blood collecting needle 71 is connected to the female luer 72 of a spare blood collecting needle 71, and the blood collecting needle 71 is inserted into the blood donor.

The blood is transferred to the blood storage member 5a via the connecting pipe 27.37a.
On the other hand, the blood transfusion needle 20a introduced into the housing 35a is connected to the other male luer 28 and used for waste liquid treatment.

Various filters 14a loaded inside the drip tube 12a,
The pore size of 15a and 18a is 210 p each.
, 180μ, and 35IL, it is formed smaller from the blood inlet to the blood outlet. This makes it possible to completely prevent microaggregates in the blood from entering the autotransfusion set.

Filters 14a, 15a% 18a are ■ 14a and 1
5a are stacked and welded inside the drip tube, and 18a is welded and attached to the lower end of the drip tube.

014a, 15a, and tea are laminated all at once and welded and attached to the inner surface of the drip tube.

It can be loaded into the drip tube 12a in the following manner.

The child bag 3Ela (attached to the parent bag 35& via the connecting tube 38a) in the blood storage member 5a is connected to the parent bag 35.
The blood collected in A is used when sampling for blood tests and the like. This is especially useful for blood tests that require a large amount of sample.Next, details of the clamp attached to the connecting tube of the autotransfusion set of the present invention will be explained.

FIG. 14 is a perspective view of the clamp 224 in the closed state.
FIG. 5 shows a perspective view of the clamp 224 opened.
Clamp 224 is made of polypropylene.

It is made of synthetic resin such as polyacetal or hard vinyl chloride, and basically includes a sealing member 232, a main body 233, and a hinge part 2.
34, and is formed by integral molding. The sealing member 232 is formed into a rectangular shape, and includes a convex holding portion 235 of the connecting tube 243, one end of the outer edge (the connecting tube 243
A fitting protrusion 238 and a fitting groove 237 are integrally formed at a position intersecting the length direction.

The main body 233 is formed into a rectangular shape, and includes a convex holding part 238 of the connecting pipe 243, one end of the outer edge (the connecting pipe 243
A fitting groove 238 is located at a position facing the fitting protrusion of the sealing member 232 and the fitting groove 237 (a position intersecting the length direction of the sealing member 232).
and a fitting protrusion 240 are integrally formed (FIG. 16 shows these fitting protrusions 238, 240 and fitting grooves 237, 23).
9), and a mounting groove 241 for the connecting tube 243 and a holding member 242 for the connecting tube 243 are integrally formed at one end of the outer edge (at the same position as the length direction of the connecting tube 243). There is.

As shown in FIG. 17, the holding member 242a is attached to the connecting pipe 243.
A notch 244a may be formed so that the tube a can be easily attached to the tube attachment groove 241a.The radius W of the notch 244a is preferably formed to be slightly smaller than the outer diameter of the connecting tube 243a. 244a is the connecting pipe 243
It is possible to prevent the vehicle from separating from a.

Furthermore, a taper 245a may be formed at the tip of the notch 244a so that the connecting pipe 243a can be easily attached.

Next, how to attach the clamp 224 to the autotransfusion set l and how to use it will be explained.

As shown in FIG. 15, when assembling the autotransfusion set 1 with the sealing member 232 and the main body 233 opened at an angle of 180 degrees, the connecting tube 243 is attached to the tube attachment groove 241 of the main body 233, and then Bag 35a (35b)
Connect to the upper end of the blood bag 1 to assemble the blood bag 1.

The tube mounting groove 241 is formed with a width W that is large enough to allow sufficient play with the connecting pipe 243, so the clamp 22
4 can be slid between the connecting tubes 243 as necessary.

The relationship among the width W of the notch 244a, the outer diameter D of the connecting tube 243a, and the diameter W of the tube mounting groove 241 is w.
>n>w.

In use, when the sealing member 232 is pushed toward the main body 233 to close it, the connecting tube 243 is gradually pressed against both the clamping parts 235 and 238.

Fitting protrusion 23B of sealing member 232 and main body 233-fitting groove 239. When the fitting groove 237 and the fitting protrusion 240 are completely fitted, the connecting pipe 243 is pressed against the sealing member 232 and the bottom of the main body 231 by the holding portions 235 and 238, and the fluid passage is completely blocked. (Figure 18).

Fitting protrusions 23B and 24 between the sealing member 232 and the main body 231
0 and fitting groove 23? , 239 cross each other and are tightly fitted, so that once they are fitted one degree, they will never come off again.

Furthermore, in a clamp 224a in which a notch 244 is formed in a holding member 242a as shown in FIG.
The connecting tube 243a can be attached to the tube mounting groove 241a from a (the connecting tube 243a is flexible, so it will be crushed in the notch 244a, but it will return to its original shape in the tube attaching groove 241a). Therefore, it can be attached to the assembled autotransfusion cell as needed.

As described above, blood transfusions and blood collections are repeated until the amount of blood collected is relatively large, and fluid replacement is given to the donor in an amount equivalent to the amount of blood collected from the donor.
The burden on blood donors is small.

Moreover, the liquid introduction needle 7 attached to the autotransfusion set of the present invention
a, the number of blood introduction needles 17a, ring blood collection needles 20a, the shapes of connecting tubes 41, 42, 43, and each component 2.3a, 4,
The materials of 5a and 6 can be arbitrarily set depending on the purpose of use.

[Effects of the Invention] As explained above, the autologous blood transfusion set of the present invention: ■ transfuses blood collected from a donor without losing its freshness, and at the same time transfuses blood in excess of the amount transfused from the donor into body fluids; Since blood can be collected without disturbing the equilibrium balance and can be used in a recycling system, it is especially suitable for the preservation of donor's own blood and for autologous transfusion.

(1) Since the structural members (1) to (5) are integrally connected, the operation can be performed in a closed system, so hygiene can be ensured.

■Since the clamp 50a etc. is attached to the connecting tube, the liquid flow path of the connecting tube can be easily shut off with a single touch, and the blood components are airtight to the extent that they do not mix with each other and do not come into contact with the outside air. Because of its superior properties, blood transfusions can be carried out with peace of mind.

This is an excellent invention that has the following effects.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing the basic configuration of a first embodiment of the autotransfusion set of the present invention, and FIGS. 2, 3, and 4 show other embodiments of the autotransfusion set of the present invention. Schematic. 5 is a schematic diagram showing the basic configuration of a second embodiment of the autotransfusion set of the present invention; FIG. 6 is a schematic diagram of a blood storage member used in connection with the autotransfusion set of FIG. FIG. 7 is a schematic diagram showing another embodiment of the autotransfusion set of the second embodiment, and FIG. 8 is a schematic diagram showing another embodiment of the connection part between the connection member and the blood storage member of the autotransfusion set of the present invention. . FIG. 9(&) is a schematic diagram showing another example of the infusion member constituting the autotransfusion set, FIG. 9(b) is a schematic diagram showing another example of the infusion member and the blood transfusion member, and 1θ Figures 11 and 11 are examples of the check valve attached to the cleaning liquid storage member, in which (a) is a plan view, (b) is a sectional view of (&), and Figure 12 is an enlarged view of the vicinity of the connecting pipe of the cleaning liquid storage member. 13 are schematic diagrams showing an example of how to use the male lure of the cleaning liquid storage member. Fig. 14 is a perspective view of the clamp in the closed state, Fig. 15 is a perspective view of the clamp in the open state, Fig. 16 is an enlarged sectional view of the fitting protrusion and fitting groove of the clamp, and Fig. 17 is the clamp FIG. 18 shows a central vertical sectional view of FIG. 14. In the figure, 1 is an autotransfusion set, 2 is an infusion member, 3 is a blood transfusion member, 4 is a blood transfusion member, 5a and 5b are blood storage members, 6 is a washing liquid storage member, 11.12a and 12b are drip tubes, and 7a
17a is a liquid introduction needle, 17a is a blood introduction needle, 20a is a blood transfusion needle, 23a and 24a are mixed injection parts, 26 is a waste liquid bag, 29.
30 is a male luer, 31 is a connecting pipe, 33 is a check valve, 35
a, 35b are parent bags, 36a, 36b are child bags, 3
9a, 39b are communicating pieces, 41.42.43 are connecting pipes, 8.9.13a, 13b, 21, 22.27.28.
37a, 37b, 38a, 38b are connecting pipes A; B, C are roll clamps, D, E, F are Jura clamps, G, H are slide clamps 50° 151a, 151b
, 151 c, 151 d, 151 e are connecting members,
152a is a male connector, 153a is a lock nut, 154a, 182a is a protector, 170
a is a communication piece, 181a and 191 are female connectors, 193 is a needle member, 184 is a thin wall n-piece, 232 is a sealing member, 233 is a main body, 234 is a hinge portion, 235, 23
8 is a holding part, 2H, 240 is a fitting protrusion, 237, 2
39 is a fitting groove, 241 is a mounting groove, 242 is a tube holding member, 243 is a tube, 244a is a notch, 245a
indicates taper. Patent applicant: Kawasumi Chemical Industry Co., Ltd. Figure 9 (a) g2a (b) / (a) Figure 14 Figure 15

Claims (1)

[Scope of Claims] An autologous blood transfusion set used to transfuse a predetermined amount of blood that has been previously collected and stored from a blood donor into the donor, as well as to collect a new predetermined amount of blood from the donor. (1) An infusion member consisting of a liquid introduction needle, a connecting tube, and an infusion tube; (2) a blood transfusion member consisting of a connecting tube and an infusion tube with a filter inside and a blood infusion needle attached; (3) an infusion member; Transfusion blood collection member consisting of a blood collection needle, connecting tube, and mixed injection part (4) Cleaning liquid storage member consisting of a connecting tube and waste liquid bag (5) Connecting the child bag via the connecting tube loaded with the connecting piece and the connecting tube A blood storage member composed of a parent bag or a connecting member composed of a connector member and a connecting tube, and the connector member is covered with a protector. , and (6) a sealing member [2] (a) integrally formed with [1] (a) a convex holding part (b) a fitting protrusion (c) a fitting groove in at least one place of the connecting pipe. ) Convex holding part (b) Fitting protrusion (c) Fitting groove (d) Fitting groove for liquid transfer tube (e) Main body integrally formed with holding member for liquid transfer tube [3] The sealing member An autotransfusion set characterized in that the autotransfusion set is equipped with at least one clamp formed by integrally forming the body and body through a thin hinge part.