Blood treatment combined bag

Abstract

The utility model discloses a blood treatment linked bag which is characterized in that a liquid medicine bag and an illumination bag are connected through a three-way pipe, the illumination bag is located on a trunk of the three-way pipe, the liquid medicine bag is connected into a first branch pipe of the three-way pipe, and a connecting piece used for sealing an outlet of the liquid medicine bag is arranged between the first branch pipe and the liquid medicine bag. The liquid medicine bag and the illumination bag are connected through the three-way pipe, the liquid medicine bag can be sealed only by arranging one connecting piece at an outlet of the liquid medicine bag, and the number of opening times can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a medical drug container, especially to a blood treatment associated bag. BACKGROUND

[0002] The principle of the riboflavin photochemical method is that the ribitol structure of riboflavin is combined with DNA or RNA nucleic acid chains, under the irradiation of ultraviolet light, through the reversible oxidation-reduction reaction of the 1,10 nitrogen atoms on the isoalloxazine, electrons are transferred to make the guanine residues on the nucleic acid chains broken, resulting in the change of the nucleic acid chain structure of the pathogen, so that the pathogen loses the replication activity, and the nucleic acid is destroyed or the replication and transcription of the nucleic acid are prevented.

[0003] Before light inactivation, riboflavin needs to be stored in the dark, and during inactivation, riboflavin is mixed with blood again, for this inactivation method, the utility model with publication number CN 217118914 U discloses a blood associated bag using riboflavin photochemical method, the blood associated bag is composed of a liquid medicine bag, a light bag and a blood storage bag, the liquid medicine bag is connected to the inlet of the light bag, a puncture needle or a blind end catheter is arranged at the inlet of the liquid medicine bag and used for connecting with the original blood bag, in the present scheme, the inlet and the outlet of the liquid medicine bag are respectively provided with easy-to-break pieces, during use, the easy-to-break pieces are broken, and the plasma and the liquid medicine are transferred to the light bag by gravity, the double easy-to-break pieces are arranged, so that the connection times during actual operation can be reduced, but the easy-to-break pieces need to be broken twice, the operation is complex, and the bag body and the catheter adopt the same material and are glued, so the risk is high. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a blood treatment associated bag which is helpful to the opening times.

[0005] Technical scheme: the utility model discloses a blood treatment associated bag, the liquid medicine bag and the light bag are connected through a tee pipe, the light bag is located at the main line of the tee pipe, the liquid medicine bag is located at the first branch pipe of the tee pipe, and a connecting piece for closing the outlet of the liquid medicine bag is arranged between the first branch pipe and the liquid medicine bag.

[0006] Preferably, the second branch pipe of the tee pipe is provided with a puncture assembly or a blind end catheter for connecting the blood bag.

[0007] Preferably, the light bag is further connected with a plasma storage bag, and the light bag and the plasma storage bag are connected through a catheter.

[0008] Preferably, the catheter, the first branch pipe, the second branch pipe and the main line of the tee pipe are all provided with a flow stop clamp.

[0009] Preferably, the inner layer of the liquid medicine bag is a polypropylene layer, and the liquid medicine bag and the connecting piece are externally provided with a light shielding sleeve.

[0010] Preferably, in order to reduce the waste of the liquid medicine and ensure the sterilization effect, the volume of the liquid medicine bag is 25-40 mL.

[0011] Preferably, the size of the light storage bag is 305*162 mm or 260*180 mm.

[0012] Preferably, the liquid medicine bag and the first branch pipe are connected through a connecting piece, the connecting piece comprises a breakable plug, a short pipe for accessing the liquid medicine bag and forming a liquid medicine bag filling channel, the material of the short pipe is the same as that of the inner layer of the liquid medicine bag, the short pipe is sleeved on one end of the breakable plug, the other end of the breakable plug is sleeved with an outer sleeve pipe, the end of the outer sleeve pipe away from the breakable plug is reduced in diameter to form an interface for connecting the first branch pipe, and the inner wall of the interface is provided with a positioning flange.

[0013] Preferably, the breakable plug comprises a pipe body and a breakable rod, the pipe body is reduced in diameter at both ends to form a conical outer wall, a waist ring for limiting the access length of the outer sleeve pipe or the short pipe is arranged on the middle part of the outer wall of the pipe body, and the breakable rod is arranged in the outer sleeve pipe.

[0014] Beneficial effects: compared with the prior art, the utility model has the advantages that: 1, reducing the opening times: the liquid medicine bag and the light bag are connected through a tee pipe, only one connecting piece is arranged at the outlet of the liquid medicine bag, so that the liquid medicine bag is sealed, and the opening times are reduced; 2, improving the utilization rate of the liquid medicine and reducing the waste; 3, easy to process and high safety: the outer sleeve pipe is arranged to connect the tee pipe, the short pipe is arranged to form the filling channel of the liquid medicine bag, the short pipe and the outer sleeve pipe are respectively sleeved on both ends of the breakable plug, and the breakable plug is assembled through interference fit, so that the sealing is realized, the processing is easy, the filling channel of the liquid medicine bag is made of PP and has the same material as the liquid medicine bag, so that the stability and safety are high, and the safety of the medicine in the liquid medicine bag is ensured in all directions. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of a blood treatment connecting bag structure with a puncture assembly;

[0016] Figure 2 It is a schematic diagram of a blood treatment connecting bag structure with a blind-end catheter;

[0017] Figure 3 It is a schematic diagram of the connecting piece structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the breakable plug structure of the utility model. DETAILED DESCRIPTION

[0019] The technical scheme of the utility model will be further described below with reference to the drawings.

[0020] As Figure 1As shown, the blood treatment connecting bag of the utility model mainly comprises a liquid medicine bag 7, an illumination bag 5 and a plasma storage bag 3, the liquid medicine bag 7 is used for storing riboflavin liquid medicine, the liquid medicine bag 7 and the illumination bag 5 are connected through a three-way pipe 4, wherein the illumination bag 5 is connected with a dry line 40 of the three-way pipe 4, the liquid medicine bag 7 is connected with a branch pipe 41 of the three-way pipe 4, a connecting piece 2 is arranged between the branch pipe 41 and the liquid medicine bag 7, the connecting piece 2 is used for closing the outlet of the liquid medicine bag 7, so that the riboflavin solution in the liquid medicine bag 7 can be stored for a long time, the remaining branch pipe 42 of the three-way pipe 4 is used for connecting a plasma bag (not shown), and a puncture assembly 1 is arranged at the inlet end of the branch pipe 42. Figure 2 The puncture assembly 1 can be replaced by a blind-end catheter 9. The liquid medicine bag 7 and the plasma storage bag 3 are connected through a catheter, and the catheter, the branch pipe 41 and the branch pipe 42 of the three-way pipe 4 and the dry line are all provided with a flow stop clamp 8.

[0021] The liquid medicine bag 7 adopts a three-layer co-extrusion infusion film, which comprises an inner layer A, a bonding layer B and an outer layer C. The inner layer A is made of random copolymer polypropylene, has good heat sealing performance, high transparency and good flexibility, and is safe and stable. The bonding layer B is made of ethylene-vinyl acetate copolymer with an acetate ethylene content of 10% to 40%. The outer layer C is a weather-resistant layer mainly made of polypropylene. The three-layer co-extrusion infusion film is tough and transparent, light in weight, beneficial to check visible foreign matters, has strong heat resistance, can resist high-temperature sterilization, can be sterilized at 121 DEG C, has extremely low air permeability and water permeability, has good compatibility with medicines, and is beneficial to long-term storage of medicines. The liquid medicine bag 7 is provided with a plug 6.

[0022] The liquid medicine bag 7 and the connecting piece 2 are externally provided with a light-shielding layer or a light-shielding bag (not shown), the medicine in the liquid medicine bag 7 is riboflavin which has photosensitivity, and the light-shielding layer or the light-shielding bag is used for shielding light. The light-shielding layer and the light-shielding bag are made of materials capable of reflecting light, such as aluminum foil and tin foil.

[0023] The volume of the liquid medicine bag 7 can be 25 to 40 mL or 25 to 30 mL. The specification of 25 to 30 mL reduces the volume and the addition amount of the riboflavin solution. After the riboflavin solution is added to the raw plasma for treatment, the concentration of the riboflavin solution is 48.38 to 58.68 μmol / L. Experimental data show that the pathogen can be effectively inactivated, and the plasma composition index treated by the riboflavin photochemical method is qualified.

[0024] The size of the illumination bag 5 is 305*162 mm or 260*180 mm. The size of 305*162 mm can match the size of the tray of the illumination bag 5 inactivation cabinet. Four plasma bags can be inactivated in each layer of the tray, and there are five layers of the tray in total, so that a total of 20 plasma bags can be inactivated, which is beneficial to efficient inactivation of plasma pathogens in the light irradiation process.

[0025] As shown, Figure 3 , Figure 4The connecting piece 2 is mainly composed of the breakable plug 21 and the short pipe 22. The short pipe 22 is used for connecting the medicine liquid bag 7 and forming the infusion channel of the medicine liquid bag 7. The short pipe 22 and the medicine liquid bag 7 can be connected by hot pressing. In order to ensure the long-term storage safety of the medicine, the material of the short pipe 22 is the same as that of the medicine liquid bag 7. An opaque layer or an opaque sleeve is arranged outside the short pipe 22 and the medicine liquid bag 7. During assembly, the short pipe 22 is sleeved on one end of the breakable plug 21 (right in the figure), and the branch pipe 41 of the three-way pipe 4 is sleeved on the other end of the breakable plug 21 (left in the figure). The branch pipe 41 is usually made of PVC material. By arranging the short pipe 22 and the breakable plug 21, the medicine liquid bag 7 and the catheter of different materials are connected. The short pipe 22 and the breakable plug 21 are in interference fit to ensure the sealing and avoid the use of adhesive, which is safer.

[0026] If the branch pipe 41 is directly connected with the breakable plug 21, the sealing between the branch pipe 41 and the breakable plug 21 is easily damaged when the breakable plug 21 is broken, and liquid leakage is easily caused. In order to solve this problem, the other end (left in the figure) of the sleeve pipe 23 is arranged with the sleeve pipe 23. The branch pipe 41 is connected through the sleeve pipe 23. The sleeve pipe 23 is sleeved on the breakable plug 21. The sleeve pipe 23 and the breakable plug 21 are also in interference fit. The end of the sleeve pipe 23 away from the breakable plug 21 is provided with a connector 231. The connector 231 is made by reducing the diameter of the sleeve pipe 23. The inner wall of the connector 231 is provided with a positioning flange 232. The connector 231 is used for connecting the branch pipe 41 or other catheters. The short pipe 22 and the sleeve pipe 23 are both transparent materials, and the appearance is not easy to distinguish. The arrangement of the connector 231 is also helpful to distinguish the short pipe 22 and the sleeve pipe 23.

[0027] The breakable plug 21 is mainly composed of the pipe body 211 and the breakable rod 212. The pipe body 211 is open at both ends and can guide the flow of liquid. The breakable rod 212 is located at one end of the pipe body 211 and inside the sleeve pipe 23 to close one opening of the pipe body 211. The pipe body 211 is reduced in diameter at both ends to form a tapered outer wall. The pipe body 211 is similar to a spindle in shape to facilitate the sleeve of the short pipe 22 and the sleeve pipe 23 and can form interference / tight fit with the short pipe 22 and the sleeve pipe 23 to ensure the sealing. The pipe body 211 is externally provided with a convex waist ring 213. The waist ring 213 is used to limit the length of the pipe body 211 inserted into the short pipe 22 or the sleeve pipe 23. The end of the breakable rod 212 is provided with a plurality of tail fins. The tail fins are distributed radially along the breakable rod 212. The outer diameter of the tail fin is larger than that of the breakable rod 212. The liquid guiding channels are formed between the tail fins. During use, the following steps are performed:

[0028] (1) pull out the protective cover of the blood bag puncture assembly 1, insert the blood bag puncture device in the puncture assembly 1 into the original blood plasma bag, hang the original blood plasma bag, make the blood plasma to be treated flow completely into the light bag 5, close the flow stop clamp 8, hang the photosensitizer releasing element, break off the easy-to-break rod 212 from the tube body 211, make the riboflavin solution in the medicine bag 7 flow completely into the light bag 5, discharge the excess gas in the light bag 5, close the flow stop clamp, and heat seal to disconnect the original blood plasma bag and the photosensitizer releasing element;

[0029] (2) place the remaining bag body according to the requirements of the medical blood plasma pathogen inactivation cabinet instruction, and perform light inactivation;

[0030] (3) after the light inactivation is completed, open the flow stop clamp, make the blood plasma flow into the blood plasma storage bag 3 by gravity, and close the flow stop clamp 8;

[0031] (4) if sample reservation is required, squeeze the required blood plasma into the upper conduit by tightly holding the blood plasma storage bag 3, then close the flow stop clamp 8, and heat seal to disconnect, and if sample reservation is not required, directly heat seal to disconnect.

Claims

1. A blood processing association bag comprising a medicine liquid bag (7), an irradiation bag (5), characterized in that, The medicine liquid bag (7) and the light bag (5) are connected by the three-way pipe (4), the light bag (5) is located in the dry road (40) of the three-way pipe (4), the medicine liquid bag (7) is connected to the first branch pipe (41) of the three-way pipe (4), and the first branch pipe (41) and the medicine liquid bag (7) are provided with a connecting piece (2) for closing the outlet of the medicine liquid bag (7).

2. A blood treatment set according to claim 1, characterized in that The second branch pipe (42) of the three-way pipe (4) is provided with a puncture assembly (1) for connecting the raw plasma bag or a blind end catheter (9).

3. A blood treatment set according to claim 2, characterized in that The light bag (5) is also connected with a plasma storage bag (3), and the light bag (5) and the plasma storage bag (3) are connected by a catheter.

4. A set according to claim 3, wherein The catheter, the first branch pipe (41) and the second branch pipe (42) of the three-way pipe (4) and the dry road (40) are all provided with a flow stop clamp (8).

5. The blood treatment set according to claim 1, characterized in that The inner layer of the medicine liquid bag (7) is a polypropylene layer, and the medicine liquid bag (7) and the connecting piece (2) are externally provided with a light shielding sleeve.

6. The blood treatment set according to claim 1, characterized in that The volume of the medicine liquid bag (7) is 25-40 mL.

7. The blood treatment set according to claim 1, characterized in that The size of the light bag (5) is 305*162 mm or 260*180 mm.

8. A set according to any one of claims 1 to 7, characterized in that The connecting piece (2) comprises a broken plug (21) and a short pipe (22) for connecting the medicine liquid bag and forming a medicine liquid bag infusion channel, the material of the short pipe (22) is the same as that of the inner layer of the medicine liquid bag (7), the short pipe (22) is sleeved on one end of the broken plug (21), the other end of the broken plug (21) is sleeved with an outer sleeve (23), the end of the outer sleeve (23) away from the broken plug (21) is reduced in diameter to form an interface (231) for connecting the first branch pipe (41), and the inner wall of the interface (231) is provided with a positioning flange (232).

9. A blood treatment set according to claim 8, characterized in that The broken plug (21) comprises a pipe body (211) and a breakable rod (212), the both ends of the pipe body (211) are reduced in diameter to form a tapered outer wall, the outer wall of the pipe body (211) is externally provided with a waist ring (213) for limiting the access length of the outer sleeve (23) or the short pipe (22), and the breakable rod (212) is located in the outer sleeve (23).

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