A device and assembly for feeding materials by breaking a plasma bag

Abstract

The present invention discloses a plasma bag breaking and feeding device and assembly, including a bracket, a needle, a mounting rack, a position adjusting assembly and a vacuum suction head. The bracket includes at least an upper rack body and a lower rack body, and the plasma bag is used to be placed between the upper rack body and the lower rack body; the upper rack body and the lower rack body are provided with hole grooves to expose part of the surface of the plasma bag; a first channel is arranged in the needle; when the mounting rack moves, the needle can be made to approach, pierce and move away from the plasma bag; the vacuum suction head includes an upper suction head located above the upper rack body and a lower suction head located below the lower rack body. Compared with the prior art, after the plasma bag is pierced, the medium can be flushed towards the plasma bag through the first channel in the needle in the plasma bag breaking and feeding device of the present invention, so as to transfer the residual plasma in the bag and avoid waste of plasma.

Description

Technical Field

[0001] The present invention relates to the technical field of blood product production, and particularly to a plasma bag breaking and feeding device and assembly. Background Art

[0002] The raw material for blood product production is healthy human plasma. Generally, each bag of plasma is for one person, with a volume of 600 ml. It is not easy to complete the feeding production of several tons of raw material plasma within a short time of 3 - 8 hours, especially for a production line with a relatively large manual operation intensity.

[0003] Currently, there are mainly two ways to operate the plasma bag breaking and feeding in blood product production: One way is to rinse with injection water and then manually cut the plasma bag with scissors and collect the plasma pieces into the feeding trough and plasma tank. This way is completely manual operation, which is easy to scratch the surface of the equipment, and 1% - 5% of the plasma cannot be transferred from the plasma bag and is wasted. Moreover, as a biological component, plasma has varying degrees of adverse effects on subsequent waste treatment and environmental exposure. Another way is to squeeze the pre - treated plasma bag to burst the plasma pieces out of the bag and then collect them. The operating conditions of this way are relatively rigid, and it has relatively high requirements for production conditions such as operators and the freezing of plasma bags.

[0004] In order to improve the breaking and feeding of plasma bags, some research has also been done in the industry. For example, in terms of the structure of plasma bags, there is the design of a tear - type plasma bag: The tear - type plasma bag and its use method (Patent No.: CN107693356A) provides a disposable tear - type plasma bag. One side of the plasma bag is a plasma pipeline, and the other three sides are compression seals that can be directly torn. When feeding plasma during blood product production, there is no need to break the bag with a scalpel or surgical scissors. After directly tearing the plasma bag, the plasma can be collected. The disposable tear - type plasma bag of this invention can completely solve the problems of contamination of the raw material plasma for blood product production and the risk of personal injury to staff caused by using a scalpel or surgical scissors to break the bag. The plasma bag of this method is fed in the form of plasma ice cubes under low - temperature conditions, maximizing the recovery of plasma components, but there is no effective flushing design, and the loss of plasma protein is inevitable.

[0005] A bag - breaking device on a bag - breaking machine in an automatic plasma bag cleaning, disinfecting and bag - breaking device (Patent No.: CN203020598U) discloses a fully automatic bag - breaking device, which consists of an upper central shaft, a left transmission gear, a lower central shaft, a lower bag - breaking gear, a right transmission gear, an upper bag - breaking gear, and a bag - breaking knife. When the plasma bag passes through the upper and lower groups of gears, the plasma bag is cut by the bag - breaking knife, realizing the fully automatic mechanized bag - breaking function. This device also cannot perform the flushing operation after plasma feeding, and the waste of plasma resources and the exposure of biological factors during operation are inevitable.

[0006] Therefore, how to provide an automated plasma bag puncturing and feeding device suitable for industrial-scale use, reduce the waste of limited plasma resources, and ensure that the plasma can be fully transferred from the plasma bag for the production of blood products is a technical problem that those skilled in the art urgently need to solve. Summary of the Invention

[0007] The object of the present invention is to provide a plasma bag puncturing and feeding device and assembly. After puncturing the plasma bag, the medium can be flushed towards the plasma bag through the first channel in the needle, so as to transfer the remaining plasma in the bag and avoid waste of plasma.

[0008] To achieve the above object, the present invention provides the following solutions:

[0009] The present invention discloses a plasma bag puncturing and feeding device, including:

[0010] A bracket for supporting the plasma bag, the bracket at least includes an upper frame body and a lower frame body, and the plasma bag is placed between the upper frame body and the lower frame body; through holes are provided on the upper frame body and the lower frame body to expose a part of the surface of the plasma bag;

[0011] A needle for puncturing the plasma bag, a first channel is provided in the needle, a first inlet and a first outlet communicating with the first channel are provided on the needle, the first inlet is used to communicate with a compressed air source and an injection water source, and the gas or liquid medium flowing out of the first outlet is used to blow towards the plasma bag;

[0012] A mounting frame for mounting the needle;

[0013] A position adjustment assembly for moving the mounting frame, and when the mounting frame moves, the needle can be made to approach, puncture and move away from the plasma bag;

[0014] A vacuum suction head for adsorbing the exposed surface of the plasma bag, the vacuum suction head includes an upper suction head located above the upper frame body and a lower suction head located below the lower frame body, and the vacuum suction head is communicated with a vacuum source.

[0015] Preferably, a second channel is provided in the mounting frame, a second inlet and a second outlet communicating with the second channel are provided on the mounting frame, the second inlet is used to connect a compressed air source and an injection water source, and the second outlet is communicated with the first inlet.

[0016] Preferably, the mounting frame includes an upper mounting frame located above the upper frame body and a lower mounting frame located below the lower frame body, and the needles are both mounted on the upper mounting frame and the lower mounting frame.

[0017] Preferably, both the upper rack body and the lower rack body are metal meshes, and the mesh holes of the metal meshes form the hole grooves.

[0018] Preferably, both the upper rack body and the lower rack body are stainless steel meshes.

[0019] Preferably, the upper rack body divides the upper surface of the plasma bag into 9 - 36 mesh holes, and the lower rack body divides the lower surface of the plasma bag into 9 - 36 mesh holes.

[0020] Preferably, a suction cup is installed at the air inlet of the vacuum suction head, and the suction cup is used for adsorbing on the plasma bag.

[0021] The present invention also discloses an assembly of a plasma bag breaking and feeding device, which includes the above - mentioned plasma bag breaking and feeding device, and further includes the compressed air source, the injection water source, and the vacuum source.

[0022] The present invention has achieved the following technical effects compared with the prior art:

[0023] 1. The needle can not only play the role of breaking the bag, but also flush the medium into the plasma bag through the first channel, so as to flush out the plasma in the plasma bag, simplifying the structure and reducing the volume of the device.

[0024] 2. The present invention can automatically complete the surface flushing and drying of the plasma bag, reduce the manual input in the plasma bag feeding stage, greatly reduce the personnel exposure in the production of blood products, and improve the personnel safety in product production.

[0025] 3. By using the repeated operations of flushing the inner surface with injection water and drying with compressed air, the plasma in the plasma bag is completely transferred out, eliminating the waste of plasma resources and reducing the environmental impact of production waste treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0027] Figure 1 It is a schematic structural diagram of the assembly of the plasma bag breaking and feeding device for this embodiment;

[0028] Figure 2 For Figure 1 the sectional view in the A - A direction in

[0029] Description of the reference numerals: 1 - mounting bracket; 2 - needle; 3 - bracket; 4 - vacuum suction head; 5 - compressed air source; 6 - position adjustment assembly; 7 - vacuum source; 8 - injection water source; 9 - lower frame; 10 - plasma bag. Detailed implementation manners

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] The purpose of the present invention is to provide a plasma bag breaking and feeding device and assembly, which can flush the medium into the plasma bag through the first channel in the needle after piercing the plasma bag, so as to transfer the residual plasma in the bag and avoid waste of plasma.

[0032] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0033] This embodiment provides a plasma bag breaking and feeding device, including a bracket 3, a needle 2, a mounting bracket 1, a position adjustment assembly 6 and a vacuum suction head 4.

[0034] Among them, the bracket 3 is used to support the plasma bag 10. The bracket 3 includes at least one upper frame and a lower frame 9. The plasma bag 10 is used to be placed between the upper frame and the lower frame 9. The bracket 3 can limit the position of the plasma bag 10 to facilitate the needle 2 to pierce the plasma bag 10. The upper frame and the lower frame 9 can be an integral body or two independent parts. When the upper frame and the lower frame 9 are an integral body, they can be fixedly connected or detachably connected.

[0035] The upper frame body and the lower frame body 9 are provided with holes or grooves to expose part of the surface of the plasma bag 10. The holes or grooves mentioned here can be holes or grooves, as long as they can expose part of the surface of the plasma bag 10. The exposed surface of the plasma bag 10 can be used to be punctured by the needle 2, adsorbed by the vacuum suction head 4, and contacted with the medium blown by the needle 2. The needle 2 is used to puncture the plasma bag 10. A first channel is provided inside the needle 2. The needle 2 is provided with a first inlet and a first outlet communicating with the first channel. The first inlet is used to communicate with the compressed air source 5 and the injection water source 8. The gas or liquid medium flowing out of the first outlet is used to blow towards the plasma bag 10. When injection water is introduced into the first channel, if the introduction timing is before the plasma bag 10 is broken, the injection water at a certain temperature (usually not higher than 50°C) can play a role in pre-melting, facilitating subsequent bag-breaking and flushing the plasma out of the bag. If the introduction timing is after the plasma bag 10 is broken, it can play a role in flushing the plasma in the bag out, avoiding waste of plasma. When air is introduced into the first channel, the air can blow out the plasma in the plasma bag 10 and can also dry the liquid on the surface of the plasma bag 10 and the surface of the bracket 3. The mounting bracket 1 is used to mount the needle 2, and the needle 2 on the mounting bracket 1 can be one or more. The position adjustment assembly 6 is used to move the mounting bracket 1. When the mounting bracket 1 moves, the needle 2 can approach, puncture, and move away from the plasma bag 10. The vacuum suction head 4 is used to adsorb the exposed surface of the plasma bag 10. The vacuum suction head 4 includes an upper suction head located on the upper side of the upper frame body and a lower suction head located on the lower side of the lower frame body 9. The vacuum suction head 4 is communicated with the vacuum source 7, and the upper suction head is preferably directly opposite to the lower suction head in position. It should be noted that as the plasma in the plasma bag 10 flows out, the plasma bag 10 will become deflated. At this time, if a liquid or gas medium is flushed towards the plasma bag 10, the plasma bag 10 is likely to shift. In this embodiment, the adsorption effect of the vacuum suction head 4 is used to fix the plasma bag 10, facilitating subsequent operations.

[0036] The bag-breaking and feeding device can be used in the following way:

[0037] Step 1: Pre-melting of plasma and surface flushing. Place the plasma bag 10 flat between the upper frame body and the lower frame body 9. At this time, the needle 2 has not penetrated into the plasma bag 10. Connect the first inlet on the needle 2 to the injection water source 8 to flush the outer surface of the plasma bag 10 and help melt the plasma in the plasma bag 10. Later, connect the first inlet on the needle 2 to the compressed air source 5 to dry the water on the plasma bag 10.

[0038] Step 2: Rupturing the plasma bag 10 for feeding. Connect the vacuum suction head 4 to the vacuum source 7. The vacuum suction head 4 sucks tightly on the plasma bag 10 and assists in fixing the plasma bag 10 to maintain a suitable internal space. Then, move the mounting rack 1 through the position adjustment assembly 6 so that the needle 2 on the mounting rack 1 pierces the plasma bag 10. After piercing the plasma bag 10, the following repeated operations are performed to complete the operation of rupturing the plasma bag 10 for feeding: blowing out the plasma with compressed air - rinsing the inner surface with injection water - drying with compressed air - rinsing the inner surface with injection water - drying with compressed air - rinsing the inner surface with injection water - drying with compressed air. By rinsing the inner surface with injection water three times and drying with compressed air four times, the plasma in the plasma bag 10 is completely transferred for the production of blood products, eliminating plasma waste.

[0039] Step 3: Recycling the plasma bag 10. After the operation in Step 2 is completed and the plasma bag 10 is dried, disconnect the vacuum suction head 4 from the vacuum source 7, introduce air into the vacuum suction head 4 to release the fixation between the vacuum suction head 4 and the plasma bag 10, and then take out the empty plasma waste bag. There are various ways to introduce air into the vacuum suction head 4, and those skilled in the art can flexibly select according to needs. For example, a switching valve is provided on the vacuum suction head 4, and when the switching valve is opened, external air enters the vacuum suction head 4. When there are multiple plasma bags 10 between the upper rack and the lower rack 9, to facilitate the removal of the waste bags, the upper rack or the lower rack 9 can be removed. After all the waste bags are taken out, the upper rack or the lower rack 9 is reinstalled.

[0040] It can be understood that in addition to the above usage methods, those skilled in the art can also select other usage methods according to actual needs, such as adjusting the number of times of flushing and air blowing.

[0041] To facilitate the introduction of gas or liquid medium into the needle 2, in this embodiment, a second channel is provided inside the mounting rack 1. A second inlet and a second outlet communicating with the second channel are provided on the mounting rack 1. The second inlet is used to connect to the compressed air source 5 and the injection water source 8, and the second outlet communicates with the first inlet. When there are multiple needles 2 installed on the mounting rack 1, gas or liquid medium can be provided to all the needles 2 through the mounting rack 1 simultaneously.

[0042] To improve work efficiency, the mounting rack 1 in this embodiment includes an upper mounting rack located above the upper rack and a lower mounting rack located below the lower rack 9. Needles 2 are installed on both the upper mounting rack and the lower mounting rack, and operations such as pre-melting, bag rupturing, rinsing, and air drying can be carried out simultaneously from the upper and lower sides.

[0043] In this embodiment, both the upper rack body and the lower rack body 9 are made of metal mesh, and more preferably made of stainless steel mesh. Those skilled in the art can also choose other materials such as plastic for the upper and lower rack bodies 9. The mesh holes of the metal mesh form the above-mentioned hole grooves, and the hole grooves on the upper rack body are preferably positioned directly opposite to the hole grooves on the lower rack body 9. In this embodiment, the upper rack body divides the upper surface of the plasma bag 10 into 9 - 36 mesh holes, and the lower rack body 9 divides the lower surface of the plasma bag 10 into 9 - 36 mesh holes to increase the bag-breaking position, flushing position, and air-drying position of the plasma bag 10 as much as possible, thereby improving work efficiency. According to different actual needs, those skilled in the art can also choose other numbers of mesh holes.

[0044] To improve the adsorption firmness of the vacuum suction head 4, in this embodiment, a suction cup is installed at the air inlet of the vacuum suction head 4, and the suction cup is used to adsorb on the plasma bag 10.

[0045] The position adjustment component 6 can be a manual adjustment structure (such as a hand-cranked lifting structure) or an automatic adjustment structure (such as a hydraulic cylinder), and those skilled in the art can flexibly choose according to needs.

[0046] The above-mentioned compressed air source 5 can be a gas storage cylinder, the injection water source 8 can be a faucet connected to an injection water tank, and the vacuum source 7 can be a vacuum pump.

[0047] As Figure 1-2 shown, this embodiment also provides a total assembly of a plasma bag bag-breaking and feeding device, including the above-mentioned plasma bag bag-breaking and feeding device, as well as the above-mentioned compressed air source 5, injection water source 8, and vacuum source 7.

[0048] Specific examples are used in this specification to elaborate on the principles and implementation manners of the present invention. The descriptions of the above embodiments are only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A device for feeding materials by breaking a plasma bag, characterized in that, Comprising: A bracket for supporting a plasma bag, the bracket at least including an upper bracket body and a lower bracket body, the plasma bag being adapted to be placed between the upper bracket body and the lower bracket body; holes and grooves are provided on the upper bracket body and the lower bracket body to expose a partial surface of the plasma bag; A needle for puncturing the plasma bag, a first channel being provided in the needle, a first inlet and a first outlet communicating with the first channel being provided on the needle, the first inlet being adapted to communicate with a compressed air source and an injection water source, and the gas or liquid medium flowing out of the first outlet being adapted to blow towards the plasma bag; A mounting bracket for mounting the needle; A position adjusting assembly for moving the mounting bracket, the needle being capable of approaching, puncturing and moving away from the plasma bag when the mounting bracket moves; A vacuum suction head for adsorbing the exposed surface of the plasma bag, the vacuum suction head including an upper suction head located above the upper bracket body and a lower suction head located below the lower bracket body, the vacuum suction head being in communication with a vacuum source.

2. The bag-breaking and feeding device for the plasma bag according to claim 1, characterized in that, A second channel is provided in the mounting bracket, a second inlet and a second outlet communicating with the second channel being provided on the mounting bracket, the second inlet being adapted to connect to a compressed air source and an injection water source, and the second outlet being in communication with the first inlet.

3. The bag-breaking feeding device for the plasma bag according to claim 1, characterized in that, The mounting bracket includes an upper mounting bracket located above the upper bracket body and a lower mounting bracket located below the lower bracket body, and the needles are mounted on both the upper mounting bracket and the lower mounting bracket.

4. The bag-breaking and feeding device for a plasma bag according to claim 1, wherein, Both the upper bracket body and the lower bracket body are metal meshes, and the mesh holes of the metal meshes form the holes and grooves.

5. The bag-breaking and feeding device for the plasma bag according to claim 4, wherein Both the upper bracket body and the lower bracket body are stainless steel meshes.

6. The bag-breaking and feeding device for the plasma bag according to claim 4, characterized in that, The upper bracket body divides the upper surface of the plasma bag into 9 - 36 mesh holes, and the lower bracket body divides the lower surface of the plasma bag into 9 - 36 mesh holes.

7. The bag-breaking and feeding device for the plasma bag according to claim 1, wherein A suction cup is mounted at the air suction port of the vacuum suction head, and the suction cup is adapted to adsorb on the plasma bag.

8. An assembly of a plasma bag bag-breaking and feeding device, comprising the plasma bag bag-breaking and feeding device according to any one of claims 1-7, characterized in that, Also included are the compressed air source, the injection water source and the vacuum source.

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