Plasma thawing bag and plasma thawing device

Abstract

The utility model belongs to the technical field of plasma unfreezing, and particularly relates to a plasma unfreezing bag and a plasma unfreezing device, the plasma unfreezing bag comprises a bag body, the bag body comprises an inner layer and an outer layer, the upper side edge and the lower side edge of the inner layer are connected with the upper side edge and the lower side edge of the outer layer in a sealed mode, and a cavity for containing heat conduction media is formed between the inner layer and the outer layer. A liquid inlet pipe and a liquid outlet pipe are arranged in the cavity, both the liquid inlet pipe and the liquid outlet pipe penetrate through the bottom of the bag body, and both the liquid inlet pipe and the liquid outlet pipe are connected with the bottom of the bag body in a sealed mode. On one hand, the plasma unfreezing bag can be attached to the outer surface of the plasma bag in a gapless mode, air and other factors not beneficial to heat conduction are exhausted, the heat conduction efficiency is improved, and the unfreezing time is shortened, on the other hand, the plasma unfreezing bag extrudes the plasma bag, plasma in the plasma bag can displace, the plasma is unfrozen more evenly, and the unfreezing efficiency is improved. And the plasma thawing quality is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of plasma thawing, and in particular relates to a plasma thawing bag and a plasma thawing device. Background Art

[0002] Medical frozen plasma must be thawed before clinical use, so plasma thawing equipment came into being. There are two thawing methods of existing plasma thawing equipment, water bath type and dry type.

[0003] Water bath type, put the plasma bag directly into the water of set temperature and heat it to constant temperature. In this method, the outer surface of the plasma bag is in direct contact with water, which makes the label on the surface of the plasma bag very easy to fall off, seriously affecting the identification and distribution of plasma. On the other hand, the direct contact between the blood collection tube port and water is easy to cause contamination.

[0004] The plasma bag isolation device of the dry thawing apparatus with patent number ZL201822197411.0 includes a plasma frame, a partition, and an isolation bag. The isolation bags are arranged in rows, and the isolation bags in each row of isolation bags are connected to each other through the edges of their bag openings. The bag openings of each isolation bag are provided with bag opening support components, and the partition is provided with the same number of openings as the isolation bags. The isolation bags are clamped on the partition through the bag opening support components, and the partition is clamped on the upper opening of the plasma frame. Although the isolation device solves the problem that the label is easy to fall off and the blood collection tube port is easy to be contaminated due to water bath thawing, and the plasma bag is evenly heated during the thawing process, which improves the quality of plasma thawing, there is a gap between the plasma bag and the heat transfer medium when the isolation device is thawed, the heat exchange efficiency between the plasma bag and the heat transfer medium is low, and the plasma thawing time is long. Utility Model Content

[0005] The utility model aims to provide a plasma thawing bag and a plasma thawing device to solve the problem of long plasma thawing time mentioned in the above background technology.

[0006] In order to achieve the above technical purpose, the technical solution of the utility model is:

[0007] A plasma thawing bag comprises a bag body, wherein the bag body comprises an inner layer and an outer layer, wherein the inner layer is sealedly connected to the upper and lower sides of the outer layer, wherein a cavity for accommodating a heat transfer medium is formed between the inner layer and the outer layer, wherein a liquid inlet pipe and a liquid outlet pipe are arranged in the cavity, wherein the liquid inlet pipe and the liquid outlet pipe both pass through the bottom of the bag body, and wherein the liquid inlet pipe and the liquid outlet pipe are sealedly connected to the bottom of the bag body.

[0008] As an improvement, a sealing partition line is provided on the side of the bag body, the inner layer and the outer layer are sealed and connected via the sealing partition line, and the liquid inlet pipe and the liquid outlet pipe are located on both sides of the sealing partition line.

[0009] As a further improvement, the length of the liquid outlet pipe in the cavity is greater than the length of the liquid inlet pipe in the cavity.

[0010] As a further improvement, the upper edge of the inner layer is sealed and connected to the upper edge of the outer layer to form a fixing portion.

[0011] The utility model also provides a plasma thawing device, comprising a body, a control panel being provided on the top of the body, and characterized in that a dry-wet separation thawing box, a heat conduction medium box, a circulation pump group, a heater and an electric control box are provided in the body, a plasma thawing bag is provided in the dry-wet separation thawing box, the heat conduction medium box, the heater and the electric control box are all located below the dry-wet separation thawing box, and the circulation pump group is respectively connected to the heat conduction medium box, the heater and the plasma thawing bag.

[0012] As a further improvement, the dry-wet separation thawing box is provided with a plurality of thawing spaces, each of the thawing spaces is provided with the plasma thawing bag, the upper part of the plasma thawing bag is fixed to the top of the thawing space by a fixed cover, and the bottom side of each of the thawing spaces is provided with two through holes, and the liquid inlet pipe and the liquid outlet pipe respectively pass through the two through holes.

[0013] As a further improvement, the circulation pump group includes multiple first circulation pumps, the inlets of the multiple first circulation pumps are connected to the heat transfer medium box, the outlets of the multiple first circulation pumps correspond one-to-one to and are connected to the liquid inlet pipe, and the liquid outlet pipe is connected to the heat transfer medium box.

[0014] As a further improvement, the circulation pump group also includes a second circulation pump, the inlet of the second circulation pump is connected to the heat transfer medium box, the outlet of the second circulation pump is connected to the inlet of the heater, and the outlet of the heater is connected to the heat transfer medium box.

[0015] As a further improvement, a gravity sensor and a liquid leakage detector are provided on the inner bottom wall of the thawing space, and both the gravity sensor and the liquid leakage detector are connected to the electric control box via electrical signals.

[0016] As a further improvement, a plurality of indicator lights are provided on the top of the dry-wet separation thawing box, the plurality of indicator lights correspond one-to-one to the plurality of thawing spaces, and the plurality of indicator lights are electrically connected to the electric control box.

[0017] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0018] The utility model provides a plasma thawing bag, in which the plasma bag is placed inside the bag body, and a heat conduction medium enters the cavity through a liquid inlet tube. After the cavity is filled with the heat conduction medium, the inner layer of the plasma thawing bag abuts against the outer wall of the plasma bag, thereby squeezing the plasma bag. On the one hand, the plasma thawing bag can be seamlessly fitted with the outer surface of the plasma bag, and air and other factors that are not conducive to heat conduction can be discharged, thereby improving heat conduction efficiency and shortening thawing time. On the other hand, the plasma thawing bag squeezes the plasma bag, which can cause the plasma inside the plasma bag to be displaced, making the plasma thawing more uniform and the plasma thawing quality higher.

[0019] The liquid inlet pipe and the liquid outlet pipe are respectively located on both sides of the sealing partition line. The heat conduction medium enters the cavity through the liquid inlet pipe, and then flows out of the plasma thawing bag through the liquid outlet pipe after going around the plasma thawing bag for one cycle, so that the temperature of the heat conduction medium in the plasma thawing bag is more uniform, further improving the heat conduction efficiency, shortening the thawing time, and preventing the plasma in the plasma bag from being thawed unevenly, resulting in irreversible deterioration of the plasma.

[0020] The plasma thawing device is provided with a plurality of thawing spaces and can thaw a plurality of plasma bags at the same time.

[0021] A gravity sensor is set at the bottom of the thawing space. When the plasma bag is placed in the thawing space, the gravity sensor detects the weight change and transmits the signal to the electric control box. The electric control box automatically controls the circulation pump group to transport the heat transfer medium into the cavity.

[0022] The leak detector can automatically detect the leak and send a signal to stop the circulation pump unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of Example 1;

[0024] Figure 2 is a cross-sectional view of Example 1 when the cavity is filled with a heat transfer medium;

[0025] Figure 3 is a schematic structural diagram of Example 2;

[0026] Figure 4 is a schematic diagram of the internal structure of Example 2;

[0027] Figure 5 is a schematic diagram of the structure of the dry-wet separation thawing box in Example 2;

[0028] Wherein: 1-bag body, 2-inner layer, 3-outer layer, 4-heat transfer medium, 5-liquid inlet pipe, 6-liquid outlet pipe, 7-sealing separator, 8-fixed part, 9-machine body, 10-operation panel, 11-dry-wet separation thawing box, 12-heat transfer medium box, 13-first circulation pump, 14-heater, 15-electric control box, 16-thawing space, 17-fixed cover, 18-second circulation pump, 19-indicator light. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the specific implementation methods and the accompanying drawings. The accompanying drawings are only for illustrative purposes and are only schematic diagrams, not actual drawings, and should not be construed as limiting the present application. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. It is understandable to those skilled in the art that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0030] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on the present application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances. Example 1

[0031] like Figure 1-2 As shown, a plasma thawing bag includes a bag body 1, and the bag body 1 includes an inner layer 2 and an outer layer 3. The upper and lower sides of the inner layer 2 and the outer layer 3 are sealed. Specifically, the cross-sections of the inner layer 2 and the outer layer 3 are both circular or elliptical. A cavity for accommodating a heat conduction medium 4 is formed between the inner layer 2 and the outer layer 3. A liquid inlet pipe 5 and a liquid outlet pipe 6 are provided in the cavity. The liquid inlet pipe 5 and the liquid outlet pipe 6 both pass through the bottom of the bag body 1, and the liquid inlet pipe 5 and the liquid outlet pipe 6 are sealed to the bottom of the bag body 1.

[0032] The plasma bag is placed inside the inner layer 2, and the heat conduction medium 4 enters the cavity through the liquid inlet pipe 5. The heat conduction medium 4 in the cavity exchanges heat with the plasma bag to achieve thawing of the plasma bag. When the cavity is filled with the heat conduction medium 4, the inner wall of the inner layer 2 and the outer wall of the plasma bag are pressed against each other, thereby squeezing the plasma bag. On the one hand, the plasma thawing bag can fit the outer surface of the plasma bag without a gap, and the factors that are not conducive to heat conduction, such as air, are discharged, thereby improving the heat conduction efficiency and shortening the thawing time. On the other hand, the plasma thawing bag squeezes the plasma bag, which can cause the plasma inside the plasma bag to be displaced, making the plasma thawing more uniform and the plasma thawing quality higher. The heat conduction medium 4 enters the cavity through the liquid inlet pipe 5, and then flows out of the cavity through the liquid outlet pipe 6, so that the heat conduction medium 4 in the cavity can always maintain a certain temperature range, which is conducive to the thawing of the plasma bag.

[0033] A sealing partition line 7 is provided on the side of the bag body 1, and the inner layer 2 and the outer layer 3 are sealed and connected by the sealing partition line 7. The liquid inlet pipe 5 and the liquid outlet pipe 6 are located on both sides of the sealing partition line 7. The heat transfer medium 4 enters the cavity through the liquid inlet pipe 5, and then flows around the bag body in the cavity for one circle, and then flows to the other side of the sealing partition line 7 and flows out of the cavity through the liquid outlet pipe 6, which can improve the fluidity of the heat transfer medium 4 in the cavity, make the temperature of each position in the cavity basically consistent, and prevent the plasma in the plasma bag from being thawed unevenly, resulting in irreversible deterioration of the plasma.

[0034] Preferably, the length of the liquid outlet tube 6 in the cavity is greater than the length of the liquid inlet tube 5 in the cavity.

[0035] In this embodiment, the bag body 1 is made of silica gel or PE material, or other soft materials with good sealing properties and good thermal conductivity. Preferably, the bag body 1 is transparent.

[0036] In this embodiment, the heat transfer medium 4 can be water or other high-efficiency heat transfer medium capable of maintaining a uniform constant temperature.

[0037] Preferably, the upper edge of the inner layer 2 of the bag body 1 is sealed and connected to the upper edge of the outer layer 3 to form a fixing portion 8 . Example 2

[0038] like Figure 3-5 As shown, a plasma thawing device includes a body 9, a control panel 10 is provided on the top of the body 9, a dry-wet separation thawing box 11, a heat transfer medium box 12, a circulating pump group, a heater 14 and an electric control box 15 are arranged inside the body 9, the heat transfer medium box 12, the heater 14 and the electric control box 15 are all located below the dry-wet separation thawing box 11, the dry-wet separation thawing box 11 is used to thaw the plasma bag, the heat transfer medium box 12 is used to store the heated heat transfer medium 4, the circulating pump group is used to transport the heat transfer medium 4 in the heat transfer medium box 12 to the dry-wet separation thawing box 11, and the heater 14 is used to heat the heat transfer medium 4.

[0039] A plurality of thawing spaces 16 are provided in the dry-wet separation thawing box 11, each thawing space 16 is provided with the plasma thawing bag in Example 1, the thawing space 16 is hollow inside, the outer wall of the bag body 1 of the plasma thawing bag is close to the inner wall of the thawing space 16, the fixing portion 8 of the plasma thawing bag is folded outward and covered on the top of the side wall of the thawing space 16, a fixing cover 17 is provided on the top of the thawing space 16, the fixing cover 17 fixes the plasma thawing bag in the thawing space 16, and two through holes are provided on the bottom side of each thawing space 16, and the liquid inlet pipe 5 and the liquid outlet pipe 6 respectively pass through the two through holes.

[0040] The circulation pump group includes multiple first circulation pumps 13, the inlets of the multiple first circulation pumps 13 are all connected to the heat transfer medium box 12, the outlets of the multiple first circulation pumps 13 correspond to and are connected to the liquid inlet pipe 5 one by one, and the liquid outlet pipes 6 are all connected to the heat transfer medium box 12. The heat transfer medium in the heat transfer medium box 12 is transported to the liquid inlet pipe 5 through the first circulation pumps 13 and then enters the cavity of the plasma thawing bag.

[0041] The circulation pump group is further provided with a second circulation pump 18, the inlet of the second circulation pump 18 is connected to the heat transfer medium box 12, the outlet of the second circulation pump 18 is connected to the inlet of the heater 14, the outlet of the heater 14 is connected to the heat transfer medium box 12, the heat transfer medium 4 in the heat transfer medium box 12 is sent into the heater 14 by the second circulation pump 18 for heating, and then returns to the heat transfer medium box 12, and then is sent to the liquid inlet pipe 5 by the first circulation pump 13.

[0042] In this embodiment, a gravity sensor is provided at the bottom of the thawing space 16, and the gravity sensor is electrically connected to the electrical control box 15. When the plasma bag is placed in the thawing space 16, the gravity sensor detects the increase in weight and transmits the signal to the electrical control box 15. The electrical control box 15 controls the circulation pump group to start, and transports the heat conduction medium 4 to the cavity of the plasma thawing bag to thaw the plasma bag. Among them, the gravity sensor is a prior art and will not be described in detail here.

[0043] In this embodiment, a liquid leakage detector is provided at the bottom of the thawing space 16, and the liquid leakage detector is electrically connected to the electric control box 15. When the plasma bag or the plasma thawing belt is ruptured, the plasma in the plasma bag or the heat transfer medium 4 in the plasma thawing bag enters the thawing space 16, and the liquid leakage detector can detect the rupture in time. The electric control box 15 controls the circulation pump group to stop conveying the heat transfer medium 4. At the same time, an alarm device can also be set in the body 9. When the liquid leakage detector detects leakage, the electric control box 15 controls the alarm device to alarm and remind the staff.

[0044] The liquid leakage detector includes a liquid leakage detection belt. When the leakage liquid contacts the belt, current flows through the liquid leakage detection belt. The occurrence of leakage is determined based on the input current value detected by the current sensor. The liquid leakage detector is a prior art and will not be described in detail here.

[0045] A plurality of indicator lights 19 are provided on the top of the dry-wet separation thawing box 11, and the plurality of indicator lights 19 correspond one-to-one to the plurality of thawing spaces 16. The plurality of indicator lights 19 are electrically connected to the electrical control box 15. When the gravity sensor detects that a plasma bag is placed in the thawing space 16, the indicator lights 19 light up. When the plasma bag is thawed, the indicator lights 19 flash to remind the staff that the plasma bag is thawed.

[0046] When the utility model is used, the plasma thawing bag in Example 1 is fixed in the thawing space 16 through the fixing cover 17, the liquid inlet pipe 5 and the liquid outlet pipe 6 are respectively located in the two through holes at the bottom of the thawing space 16, and the liquid inlet pipe 5 is connected to the outlet of the first circulation pump 13, and the liquid outlet pipe 6 is connected to the heat transfer medium box 12.

[0047] Put the plasma bag into the thawing space 16. After the gravity sensor detects the weight change, it transmits the signal to the electric control box 15. The electric control box 15 controls the indicator light 19 to light up, and starts the first circulation pump 13 to transport the heat transfer medium 4 to the cavity of the plasma thawing bag. Then the staff can operate the operation panel 10 to set the thawing time. After the specified time is reached, the electric control box 15 automatically controls the first circulation pump 13 to stop working, and the control indicator light 19 flashes, prompting the staff that the thawing is completed. If leakage occurs, the leakage detector detects the leakage and transmits the signal to the electric control box 15. The electric control box 15 controls the circulation pump group to stop working, and the alarm device sounds an alarm to remind the staff.

[0048] On the one hand, the plasma thawing bag of the utility model can make the plasma thawing bag fit with the outer surface of the plasma bag without a gap, discharge air and other factors that are not conducive to heat conduction, improve heat conduction efficiency, and shorten thawing time; on the other hand, the plasma thawing bag squeezes the plasma bag, which can cause the plasma inside the plasma bag to shift, making the plasma thawing more uniform and the plasma thawing quality higher.

[0049] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A plasma thawing bag, comprising a bag body, characterized in that: The bag body includes an inner layer and an outer layer, the inner layer is sealed to the upper and lower sides of the outer layer, a cavity for accommodating a heat transfer medium is formed between the inner layer and the outer layer, a liquid inlet pipe and a liquid outlet pipe are arranged in the cavity, the liquid inlet pipe and the liquid outlet pipe both pass through the bottom of the bag body, and the liquid inlet pipe and the liquid outlet pipe are sealed to the bottom of the bag body.

2. The plasma thawing bag according to claim 1, characterized in that: A sealing partition line is provided on the side of the bag body, the inner layer and the outer layer are sealed and connected via the sealing partition line, and the liquid inlet pipe and the liquid outlet pipe are located on both sides of the sealing partition line.

3. The plasma thawing bag according to claim 1, characterized in that: The length of the liquid outlet pipe in the cavity is greater than the length of the liquid inlet pipe in the cavity.

4. The plasma thawing bag according to claim 3, characterized in that: The upper edge of the inner layer is sealed and connected to the upper edge of the outer layer to form a fixing portion.

5. A plasma thawing device, comprising a body, a control panel is provided on the top of the body, characterized in that: A dry-wet separation thawing box, a heat transfer medium box, a circulation pump group, a heater and an electric control box are arranged in the body; the dry-wet separation thawing box is provided with the plasma thawing bag according to claim 1; the heat transfer medium box, the heater and the electric control box are all located below the dry-wet separation thawing box; the circulation pump group is connected to the heat transfer medium box, the heater and the plasma thawing bag respectively.

6. The plasma thawing device according to claim 5, characterized in that: A plurality of thawing spaces are arranged in the dry-wet separation thawing box, each of the thawing spaces is provided with the plasma thawing bag, the upper part of the plasma thawing bag is fixed to the top of the thawing space by a fixed cover, and two through holes are arranged on the bottom side of each of the thawing spaces, and the liquid inlet pipe and the liquid outlet pipe respectively pass through the two through holes.

7. The plasma thawing device according to claim 5, characterized in that: The circulation pump group includes a plurality of first circulation pumps, the inlets of the plurality of first circulation pumps are all connected to the heat transfer medium box, the outlets of the plurality of first circulation pumps correspond to and are connected to the liquid inlet pipe one by one, and the liquid outlet pipe is connected to the heat transfer medium box.

8. The plasma thawing device according to claim 7, characterized in that: The circulation pump group further includes a second circulation pump, the inlet of the second circulation pump is connected to the heat transfer medium box, the outlet of the second circulation pump is connected to the inlet of the heater, and the outlet of the heater is connected to the heat transfer medium box.

9. The plasma thawing device according to claim 6, characterized in that: The inner bottom wall of the thawing space is provided with a gravity sensor and a liquid leakage detector, and both the gravity sensor and the liquid leakage detector are connected to the electric control box via electrical signals.

10. The plasma thawing device according to claim 6, characterized in that: A plurality of indicator lights are arranged on the top of the dry-wet separation thawing box, the plurality of indicator lights correspond to the plurality of thawing spaces one by one, and the plurality of indicator lights are electrically connected to the electric control box.

Images