CN215664822U - Medical deep low-temperature storage bag for freezing and storing blood platelets - Google Patents

Abstract

The utility model discloses a medical deep low-temperature storage bag for freezing and storing blood platelets, which comprises a storage bag, wherein a diaphragm pipe and an external pipeline which are communicated with the bag body are arranged on the storage bag, the storage bag is formed by thermally sealing an upper film and a lower film along the periphery, the upper film and the lower film cover the diaphragm pipe and the external pipeline at a heat sealing line close to the top of the bag body, and the covering length is 3-5 mm; the external pipeline is connected with a Ruhr Y-shaped joint and a liquid inlet pipe, and the liquid inlet pipe is connected with a connecting piece through a three-way pipe; the connecting piece comprises a plurality of puncture outfits, and a flow stopping clip is arranged on a catheter connected with the puncture outfits. The medical deep low temperature storage bag provided by the utility model has no rupture or damage phenomenon on the bag body and the pipeline in the freezing and unfreezing processes, thereby playing a good role in protecting blood platelets.

Description

Medical deep low-temperature storage bag for freezing and storing blood platelets

Technical Field

The utility model relates to a medical appliance, in particular to a medical deep low-temperature storage bag for freezing and storing blood platelets.

Background

Platelets are used for hemostasis, hemorrhage prevention, chemotherapy and radiotherapy adjuvant therapy, and have great practical value, because platelets are small in size, fragile in structure, complex in function, short in self life and in vitro life, and extremely strict in requirements on in vitro storage conditions, and because platelets mainly have aerobic metabolism, the storage container is required to precipitate substances harmful to platelets as little as possible, and meanwhile, the platelets are required to have good gas permeability and the like so as to prolong the storage life of the platelets.

Today, with the development of various transplantation operations and high-difficulty operations, the clinical effect of blood transfusion therapy is gradually reflected, and the clinical demand for platelets is rapidly increased due to the wide application of component blood transfusion, especially the rapid development of intensive chemotherapy and bone marrow transplantation. The conventional preservation condition of the fresh liquid blood platelets is 22 +/-2 ℃, the fresh liquid blood platelets are preserved for 5 days by shaking, and the fresh liquid blood platelets have good functions, but the collection of the fresh liquid blood platelets is long in time consumption, short in preservation period and easy to cause bacterial pollution, and the fresh liquid blood platelets need to be reserved in advance before use, so that the requirements of clinical emergency patients cannot be met, particularly in remote areas. The deep low temperature (minus 80 ℃) freezing storage is one of the ideal methods for maintaining the activity of cell tissues and keeping the physiological function of fresh platelets, has the advantages of long storage period, capability of being stored in large quantities, instant taking and supply as required, and the like, and is mainly used for storing special blood type platelets and autologous platelets. The occurrence of the frozen platelets makes up for the defect of insufficient supply of fresh liquid platelets in clinic to a great extent, provides guarantee for clinic, wins time for many patients, and especially plays an important role in the application of new medical technologies such as bone marrow stem cell transplantation, emergency treatment of critically ill patients, high-dose chemotherapy of malignant tumors and the like.

The existing platelet preserving bag is made of special polyvinyl chloride plastic or polyolefin, and the platelet preserving bag made of polyvinyl chloride plastic has excellent performance, particularly a blood transfusion socket and a catheter are made of the same polyvinyl chloride material, is convenient to process, has good sealing performance and firmness, but needs to select various additives of special varieties, so that the platelet preserving bag brings difficulties to purchase, processing, production, detection and the like of raw and auxiliary materials, and some additives are separated out to different degrees in the using process, become a foreign body to bring to patients, and are not popular to people no matter whether the auxiliary materials are harmful or not.

In addition, polyvinyl chloride is resistant to low temperature difference, and has high breakage rate under static storage condition even if being protected by an outer box within-30 ℃. Therefore, there is a need for a medical cryopreservation bag for cryopreserving platelets.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a medical deep low temperature storage bag, so that the storage bag has a stable structure and a low breakage rate at a deep low temperature.

The utility model provides a medical deep low temperature storage bag for freezing and storing blood platelets, which comprises a storage bag, wherein a diaphragm pipe and an external pipeline which are communicated with the bag body are arranged on the storage bag, the storage bag is formed by thermally sealing an upper film and a lower film along the periphery, the diaphragm pipe and the external pipeline are covered by the upper film and the lower film at a heat sealing line close to the top of the bag body, and the covering length is 3-5 mm; the external pipeline is connected with a Ruhr Y-shaped joint and a liquid inlet pipe, and the liquid inlet pipe is connected with a connecting piece through a three-way pipe; the connecting piece comprises a plurality of puncture outfits, and a flow stopping clip is arranged on a catheter connected with the puncture outfits.

Furthermore, the number of the diaphragm pipes is two, and one part of the diaphragm pipe and one part of the liquid inlet pipe extend into the inner cavity of the bag body, and the other part of the diaphragm pipe and the liquid inlet pipe are exposed out of the bag body.

Furthermore, the upper film and the lower film of the preservation bag are made of ethylene-vinyl acetate copolymer or ethylene-ethyl acrylate copolymer.

Furthermore, one end of the Ruhr Y-shaped joint is connected with a Ruhr joint with a protective cap, and the other end of the Ruhr Y-shaped joint is connected with a connecting piece through a three-way pipe.

Furthermore, the Ruhr Y-shaped joint is formed by injection molding of a PP material, and the protective cap is formed by injection molding of an ABS material.

Furthermore, the number of the puncture outfits is 2-12, every two puncture outfits are connected through a three-way pipe, every two three-way pipes are connected through a third three-way pipe, and a guide pipe connected with each puncture outfit is provided with a flow stopping clamp.

Further, the storage bag is provided with a hanging opening.

Compared with the prior art, the utility model has the following beneficial effects: the storage bag for the deep low temperature can well ensure the compatibility of the diaphragm tube, the external pipeline and the bag body, solves the defect of easy rupture during thawing, can realize the deep low temperature storage under the low temperature condition, increases the storage strength of the blood platelets, and provides convenience for clinical treatment.

Drawings

FIG. 1 is a schematic diagram of a structure of a bag for cryopreservation of platelets according to an embodiment of the present invention;

FIG. 2 is a schematic view of a storage bag used in an embodiment of the present invention;

fig. 3 is a schematic structural view of a connector and a puncture outfit used in the embodiment of the present invention.

In the figure:

1 storage bag 2a, a first diaphragm tube 2b and a second diaphragm tube

3 hanging opening 4a, a first flow stopping clip 4b and a second flow stopping clip

4c third flow stop clamp 4d fourth flow stop clamp 4e fifth flow stop clamp

4f sixth stop clamp 4g seventh stop clamp 5 catheter

6 protecting cap 7a, first three-way pipe 7b and second three-way pipe

7c third tee 7d fourth tee 7e fifth tee

8a first puncture device 8b second puncture device 8c third puncture device

8d fourth puncture device 8e fifth puncture device 8f sixth puncture device

Detailed Description

The utility model is further described below with reference to the figures and examples.

Referring to fig. 1, 2 and 3, the platelet preservation bag for deep low temperature provided by the utility model comprises a preservation bag 1 and a storage bag 1, wherein the preservation bag 1 is provided with a diaphragm tube and an external pipeline which are communicated with the bag body, the preservation bag 1 is formed by thermally sealing an upper film and a lower film along the periphery, the diaphragm tube and the external pipeline are covered by a heat sealing line of the upper film and the lower film close to the top of the bag body, and the covering length is 3-5 mm; the external pipeline is connected with a Ruhr Y-shaped joint and a liquid inlet pipe, and the liquid inlet pipe is connected with a connecting piece through a three-way pipe; the connecting piece comprises a plurality of puncture outfits, and a flow stopping clip is arranged on a catheter connected with the puncture outfits.

According to the platelet preservation bag for deep low temperature, the diaphragm tube can discharge liquid, the purpose of discharging liquid is to ensure that the task is completed, and after the temperature is raised and the platelet preservation bag is thawed, the substances preserved in the bag are extracted. The number of membrane tubes is preferably 2, such as the first membrane tube 2a and the second membrane tube 2b in fig. 1. The liquid inlet pipe is a conduit 5; the purpose of the liquid inlet pipe is to fill the preserving bag with the substance to be preserved, and the liquid inlet pipe is connected with an external pipeline.

The platelet preservation bag for the deep low temperature, provided by the utility model, comprises a storage bag body, a diaphragm tube and a catheter, wherein the storage bag body, the diaphragm tube and the catheter are all made of low temperature resistant ethylene-vinyl acetate copolymer (EVA) or ethylene-ethyl acrylate copolymer (EEA) materials. The preservation bag 1 is provided with a hanging opening 3. The external pipeline is a Ruhr Y-shaped joint with a protective cap 6 and a branch pipe, and a cryoprotectant can be added from the Ruhr Y-shaped joint with the protective cap and enters the storage bag, so that the cryoprotectant and the platelets are uniformly mixed. The luer connector is formed by injection molding of a PP material, and the protective cap is formed by injection molding of an ABS material.

The number of the puncture outfits is 2-12, every two puncture outfits are connected through a three-way pipe, every two three-way pipes are connected through a third three-way pipe, and a catheter connected with each puncture outfit is provided with a flow stopping clamp for transferring and collecting platelets.

Taking 6 puncture outfits as an example, the storage bag 1 is at least provided with a catheter 5, a first diaphragm tube 2a and a second diaphragm tube 2b, the catheter 5 is provided with a first flow stopping clamp 4a, the catheter 5 is connected with a Ruhr Y-shaped joint with a protective cap 6 and a branch tube, and the branch tube is connected with a first three-way tube 7 a; the three holes of the first three-way pipe 7a are arranged in the same direction, namely two holes are parallel and the same, and the three holes are arranged in the downward direction; the first three-way pipe is connected with a connecting piece; the connecting piece is provided with 6 puncture outfits; a flow stopping clip is arranged on a conduit connected with the blood taking needle.

With reference to fig. 3, the connecting piece is at least provided with a second three-way pipe 7b, a third three-way pipe 7c, a fourth three-way pipe 7d, a fifth three-way pipe 7e, connecting conduits of which are connected with blood taking needles, and the total number of the puncture outfits is 6, namely a first puncture outfit 8a, a second puncture outfit 8b, a third puncture outfit 8c, a fourth puncture outfit 8d, a fifth puncture outfit 8e and a sixth puncture outfit 8 f; the connecting conduits are provided with flow stopping clamps which are respectively a first flow stopping clamp 4a, a second flow stopping clamp 4b, a third flow stopping clamp 4c, a fourth flow stopping clamp 4d, a fifth flow stopping clamp 4e, a sixth flow stopping clamp 4f and a seventh flow stopping clamp 4 g; the platelets in the different bag bodies can be transferred and pooled into the preservation bag 1 by means of the puncture device.

With continued reference to fig. 3, the luer Y-connector with the protective cap 7 and the storage bag 1 are described. Opening the protective cap 6, adding a cryoprotectant from a luer Y-shaped joint at the end of the protective cap 6, allowing the cryoprotectant to enter the storage bag 1, uniformly mixing the cryoprotectant and platelets, closing the flow stopping clamp 4a, performing heat sealing at the lower end of the flow stopping clamp 4a, reserving the storage bag 1, and performing low-temperature storage on the platelets in the storage bag 1 as required.

Although the present invention has been described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (5)

1. A medical deep low temperature preservation bag for freezing and preserving blood platelets is characterized by comprising a preservation bag, wherein a diaphragm tube and an external pipeline which are communicated with the bag body are arranged on the preservation bag, the preservation bag is formed by an upper film and a lower film through heat sealing along the periphery, the upper film and the lower film cover the diaphragm tube and the external pipeline at a heat sealing line close to the top of the bag body, and the covering length is 3-5 mm; the external pipeline is connected with a Ruhr Y-shaped joint and a liquid inlet pipe, and the liquid inlet pipe is connected with a connecting piece through a three-way pipe; the connecting piece comprises a plurality of puncture outfits, and a catheter connected with the puncture outfits is provided with a flow stopping clamp;

one end of the Ruhr Y-shaped joint is connected with a Ruhr joint with a protective cap, and the other end of the Ruhr Y-shaped joint is connected with a connecting piece through a three-way pipe;

the number of the puncture outfits is 2-12, every two puncture outfits are connected through a three-way pipe, every two three-way pipes are connected through a third three-way pipe, and a guide pipe connected with each puncture outfit is provided with a flow stopping clamp.

2. The medical cryopreservation bag for cryopreserving platelets according to claim 1, wherein the number of the membrane tubes is two, and a part of the membrane tubes and the liquid inlet tube extend into the inner cavity of the bag body, and a part of the membrane tubes and the liquid inlet tube are exposed outside the bag body.

3. The medical cryopreservation bag for cryopreserving platelets according to claim 1, wherein the upper film and the lower film of the bag are made of ethylene-vinyl acetate copolymer or ethylene-ethyl acrylate copolymer.

4. The medical cryopreservation bag for cryopreserving platelets according to claim 1, wherein the luer Y-shaped connector is formed by injection molding of a PP material, and the protective cap is formed by injection molding of an ABS material.

5. The medical cryopreservation bag for cryopreserving platelets according to claim 1, wherein the bag is provided with a hanging port.

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