Organ cryopreservation device

Abstract

The utility model discloses an organ cryopreservation device. The organ cryopreservation device comprises a freezing cabinet body, a freezing box, an occupation model, a liquid storage tank and a pumping mechanism, an evaporator is arranged on the inner wall of the freezing cabinet body, a compressor is arranged outside the freezing cabinet body, the evaporator is communicated with the compressor, and after the compressor works normally, liquid in the freezing cabinet body can be solidified. The other end of the liquid feeding pipe is communicated with the liquid storage tank through the pumping mechanism, the target liquid in the liquid storage tank can be pumped into the freezing box through the pumping mechanism, and the target liquid cannot be polluted. And when the occupying model is placed in the freezing box, the freezing cover covers the opening of the freezing box, and the freezing cover can extrude the occupying model into the target liquid, so that a cavity consistent with the occupying model is directly formed when the target liquid is solidified. Thus, after medical staff take out the freezing box from the freezing cabinet body, the shape of the organ to be transplanted does not need to be chiseled out in the freezing box, and the workload of the medical staff in the organ transplantation operation process is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to an organ freezing and preservation device. Background Art

[0002] During surgeries involving organ transplantation, whether it is the preservation of organs after removal or the transfer of organs for transplantation, cryopreservation of the relevant organs is essential.

[0003] In order to be suitable for long-term ex vivo transfer of organs, most of the existing cryopreservation boxes used for organ transfer have refrigeration functions. Such cryopreservation boxes for transfer are relatively expensive and are not completely suitable for organ transplantation operations with short ex vivo time.

[0004] Therefore, the current organ transplantation surgery mainly uses sterile water to freeze into ice cubes, and then medical staff manually break the ice cubes into the shape of the organ to be preserved. Manual ice breaking increases the workload of medical staff on the one hand, and on the other hand, ice breaking easily produces sharp ice chips, which may cause damage to the organ to be preserved. It can be seen that there is an urgent need for a device suitable for short-term preservation of organs in organ transplantation surgery. Utility Model Content

[0005] The embodiment of the utility model provides an organ cryopreservation device which is applied to the organ transplantation operation process, thereby not only solving the technical problem that the organ transplantation operation process requires short-term cryopreservation of the organ, but also effectively reducing the workload of medical staff.

[0006] The utility model provides an organ cryopreservation device through an embodiment of the utility model, which is applied to the cryopreservation of organs during organ transplantation surgery. The organ cryopreservation device comprises: a freezing cabinet, a freezing box, a placeholder model, a liquid storage tank and a pumping mechanism;

[0007] An evaporator is provided on the inner wall of the freezing cabinet, a compressor is provided on the outer wall of the freezing cabinet, and the evaporator is connected to the compressor; a grille for placing the freezing box is provided on the inner wall of the grille, and an opening for passing a liquid delivery pipe is provided;

[0008] One end of the liquid delivery tube faces the inside of the freezing box and is fixed at the opening, and the other end of the liquid delivery tube is connected to the liquid storage tank through the pumping mechanism, and the liquid storage tank is used to store the target liquid;

[0009] The freezing box is used to place the placeholder model and the target liquid. When the freezing box cover has a corresponding freezing cover, the freezing cover squeezes the placeholder model into the target liquid.

[0010] As an optional implementation, the grille includes a plurality of grilles, and each grille has the same size.

[0011] As an optional implementation, the grille includes a plurality of grilles, and the size specifications of each grille are different from each other.

[0012] As an optional implementation, the space-occupying model includes a heart type, a kidney type, a liver type and a lung type.

[0013] As an optional embodiment, the pumping mechanism includes a motor, a rotating disk, and a clamping component for clamping the liquid delivery tube;

[0014] The center of the rotating disk is fixedly connected to the motor shaft, and rollers are arranged at equal intervals on the circumference of the rotating disk; the clamping components are arranged at intervals along the circumference of the rotating disk, and the distance between the clamping components and the rollers is smaller than the diameter of the liquid delivery tube.

[0015] As an optional implementation, the clamping component is fixedly connected to the freezing cabinet body, and the length of the clamping component is greater than the distance between two adjacent rollers.

[0016] As an optional implementation, the clamping component is provided with a groove for clamping the liquid delivery tube, and the opening of the groove faces the edge of the roller.

[0017] As an optional implementation, the radial cross-sectional shape of the groove includes a semicircle, and the axial cross-sectional shape of the groove includes an arc.

[0018] As an optional implementation, the material of the space-occupying model includes medical rubber, polyvinyl chloride, and polyethylene.

[0019] As an optional embodiment, an electric heating wire is wound around the outside of the liquid delivery pipe located in the freezing cabinet; the electric heating wire, the compressor and the pumping mechanism are all connected to a power source; and the outer shell of the freezing cabinet is also wrapped with a heat insulation layer.

[0020] One or more technical solutions provided in the embodiments of the present utility model can solve the technical problem only by connecting the devices, and have at least the following technical effects or advantages:

[0021] The organ cryopreservation device provided by the utility model comprises: a freezing cabinet, a freezing box, a placeholder model, a liquid storage tank and a pumping mechanism. An evaporator is arranged on the inner wall of the freezing cabinet, and a compressor is arranged on the outer wall of the freezing cabinet. The evaporator is connected to the compressor, so that when the compressor is working normally, the heat in the freezing cabinet can be taken away by the evaporator, so that the liquid in the freezing cabinet is solidified. A grille for placing the freezing box is arranged in the freezing cabinet, and an opening for passing a liquid delivery pipe is arranged on the inner wall of the grille. One end of the liquid delivery pipe faces the freezing box and is fixed at the opening. The other end of the liquid delivery pipe is connected to the liquid storage tank through the pumping mechanism. The target liquid in the liquid storage tank can be drawn into the freezing box through the pumping mechanism without contaminating the target liquid.

[0022] When the placeholder model and the target liquid are placed in the freezing box, the opening of the freezing box is covered with a freezing cover, which can squeeze the placeholder model into the target liquid, so that when the target liquid solidifies, a cavity consistent with the placeholder model is directly formed. In this way, when medical staff take out the freezing box from the freezing cabinet, they do not need to manually chisel out the shape of the organ to be transplanted to freeze and preserve the organ to be transplanted, which effectively reduces the workload of medical staff during the organ transplantation operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a schematic diagram of the structure of the organ cryopreservation device in the embodiment of the utility model;

[0025] Figure 2 This is a schematic structural diagram of a pumping mechanism in an embodiment of the utility model in one implementation manner;

[0026] Figure 3 It is a cross-sectional schematic diagram of the clamping component clamping the liquid delivery tube in the embodiment of the utility model. DETAILED DESCRIPTION

[0027] The embodiment of the utility model provides an organ cryopreservation device which is applied to the organ transplantation operation process, thereby not only solving the technical problem that the organ transplantation operation process requires short-term cryopreservation of the organ, but also effectively reducing the workload of medical staff.

[0028] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] The utility model provides an organ cryopreservation device through an embodiment of the utility model, which is applied to the organ cryopreservation during the organ transplantation operation. Figure 1 As shown, the organ cryopreservation device includes: a freezing cabinet 100, a freezing box 200, a placeholder model 300, a liquid storage tank 400 and a pumping mechanism 500.

[0030] An evaporator (not shown) is provided on the inner wall of the freezing cabinet 100, and a compressor (not shown) is provided outside the freezing cabinet 100. The evaporator is connected to the compressor. When the compressor works normally, the heat in the freezing cabinet 100 can be taken away by the evaporator, so that the liquid in the freezing cabinet 100 solidifies.

[0031] For the purpose of conveniently placing the freezing box 200, a grid 101 for placing the freezing box 200 can be provided in the freezing cabinet 100, and the inner wall of the grid 101 is provided with an opening 1011 for passing the liquid delivery pipe 600. One end of the liquid delivery pipe 600 faces the inside of the freezing box 200 and is fixed at the opening 1011, and the other end of the liquid delivery pipe 600 is connected to the liquid storage tank 400 through the pumping mechanism 500, and the target liquid is stored in the liquid storage tank 400. The freezing box 200 is used to place the placeholder model 300 and the target liquid. When the freezing box 200 is covered with a corresponding freezing cover, the freezing cover squeezes the placeholder model 300 into the target liquid.

[0032] In order to meet the needs of organ transplantation surgery as much as possible, the space-occupying model 300 can be pre-made according to the types of common transplantable organs. In an optional embodiment, the space-occupying model 300 can include: heart type, kidney type, liver type and lung type.

[0033] As an optional implementation, the material of the placeholder model 300 may include medical rubber, polyvinyl chloride, and polyethylene. If the material of the placeholder model 300 is medical rubber, it is necessary to fill the placeholder model 300 with gas to support the placeholder model 300.

[0034] Due to the different types of common transplantable organs, the corresponding sizes may also be different. For example, lungs require a larger freezing space than a heart, and accordingly, the freezing box 200 for freezing and preserving lungs is larger than the freezing box 200 for freezing and preserving a heart.

[0035] As an optional embodiment, the grilles 101 may include a plurality of grilles, and the size specifications of each grille 101 are the same, that is, the same freezer 100 is only used to freeze and preserve one organ to be transplanted, which can improve the utilization rate of the internal space of the single freezer 100. As another embodiment, the size specifications of each grille 101 are different from each other, that is, the same freezer 100 can be used to freeze and preserve multiple organs to be transplanted, which increases the types of organ preservation but also reduces the utilization rate of the internal space of the freezer 100.

[0036] It should be noted that, in the specific implementation process, the size specifications of the grille 101 can be set according to the daily surgical requirements, thereby meeting the needs of organ transplant surgery and improving the utilization rate of the internal space of the freezing cabinet 100.

[0037] Since the target liquid generally includes one or more of physiological saline, sterile water, and organ nutrient solution, the pumping of the target liquid must strictly meet the aseptic conditions. Otherwise, once the target liquid is contaminated, the transplanted organ will undoubtedly be contaminated after contacting with the solidified target liquid. Figure 2 As shown, the pumping mechanism 500 provided by the utility model includes: a motor (not shown), a rotating disk 501 and a clamping component 502 for clamping the liquid delivery tube 600.

[0038] The center of the rotating disk 501 is fixedly connected to the motor shaft, rollers 5011 are arranged at equal intervals on the circumference of the rotating disk 501, and the clamping parts 502 are arranged at intervals along the circumference of the rotating disk 501, and the distance between the clamping parts 502 and the rollers 5011 is smaller than the diameter of the liquid delivery tube 600. In this way, the pumping mechanism 500 can pump the target liquid in the liquid storage tank 400 into the freezing box 200 without causing pollution to the target liquid.

[0039] Furthermore, in order to ensure the pumping effect when the roller 5011 squeezes the liquid delivery tube 600, the clamping component 502 does not rotate with the rotating disk 501. The clamping component 502 can be fixedly connected to the freezer body 100, and the length of the clamping component 502 is greater than the distance between two adjacent rollers 5011.

[0040] In order to facilitate fixing the liquid delivery tube 600 and ensure the effect of the roller 5011 squeezing the liquid delivery tube 600, as shown in FIG. Figure 2 and Figure 3 As shown, the clamping component 502 is provided with a groove 5021 for clamping the liquid delivery tube 600 , and the opening of the groove 5021 faces the edge of the roller 5011 .

[0041] In an optional implementation, the radial cross-sectional shape of the groove 5021 may be semicircular, and the axial cross-sectional shape of the groove 5021 may be arc-shaped.

[0042] After the pumping mechanism 500 pumps the liquid into the corresponding one or more freezing boxes 200, liquid is inevitably left on the wall of the liquid delivery pipe 600 in the freezing cabinet 100. If the residual liquid is not handled in time, when the temperature in the freezing cabinet 100 decreases, the residual liquid is easy to solidify and affect the liquid delivery flow of the liquid delivery pipe 600. In this regard, an electric heating wire (not shown) can be wrapped around the outside of the liquid delivery pipe 600 in the freezing cabinet 100, so that the liquid delivery pipe 600 in the freezing cabinet 100 is not blocked by the solidification of the residual liquid. It is understandable that the electric heating wire, the compressor and the pumping mechanism 500 are all connected to a power source to meet normal operation.

[0043] In addition, in order to save power consumption of the freezing cabinet 100, the heat preservation effect of the freezing cabinet 100 can be improved, and specifically, the outer shell of the freezing cabinet 100 can be wrapped with a heat insulation layer 700. The heat insulation layer 700 can be a polystyrene board or a polyurethane foam material.

[0044] Of course, a glass door (not shown) may also be provided to seal the opening of the freezing cabinet to further improve the heat preservation effect of the freezing cabinet.

[0045] The technical solution in the above-mentioned embodiment of the present application can solve the technical problem only by connecting the components, and has at least the following technical effects or advantages:

[0046] 1. The organ cryopreservation device provided by the utility model has one end of the liquid delivery tube 600 facing the inside of the freezing box 200 and fixed at the opening, and the other end of the liquid delivery tube 600 is connected with the liquid storage tank 400 through the pumping mechanism 500. The target liquid in the liquid storage tank 400 can be drawn into the freezing box 200 through the pumping mechanism 500 without contaminating the target liquid, thereby preventing contamination of the cryopreserved organ.

[0047] 2. When the placeholder model 300 and the target liquid are placed in the freezing box 200, the opening of the freezing box 200 is covered with a freezing cover, which can squeeze the placeholder model 300 into the target liquid, so that when the target liquid solidifies, a cavity consistent with the placeholder model 300 is directly formed. In this way, when the medical staff takes out the freezing box 200 from the freezing cabinet 100, there is no need to manually chisel out the shape of the organ to be transplanted to freeze and preserve the organ to be transplanted, which effectively reduces the workload of the medical staff during the organ transplantation operation.

[0048] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0049] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An organ cryopreservation device, characterized in that: Organ cryopreservation used in organ transplantation surgery, the organ cryopreservation device comprising: a freezing cabinet, a freezing box, a placeholder model, a liquid storage tank and a pumping mechanism; An evaporator is provided on the inner wall of the freezing cabinet, a compressor is provided on the outer wall of the freezing cabinet, and the evaporator is connected to the compressor; a grille for placing the freezing box is provided on the inner wall of the grille, and an opening for passing a liquid delivery pipe is provided; One end of the liquid delivery tube faces the inside of the freezing box and is fixed at the opening, and the other end of the liquid delivery tube is connected to the liquid storage tank through the pumping mechanism, and the liquid storage tank is used to store the target liquid; The freezing box is used to place the placeholder model and the target liquid. When the freezing box cover has a corresponding freezing cover, the freezing cover squeezes the placeholder model into the target liquid.

2. The organ cryopreservation device according to claim 1, characterized in that: The grids include a plurality of grids, and each grid has the same size.

3. The organ cryopreservation device according to claim 1, characterized in that: The grids include a plurality of grids, and the size specifications of each grid are different from each other.

4. The organ cryopreservation device according to claim 2 or 3, characterized in that: The space-occupying models include heart type, kidney type, liver type and lung type.

5. The organ cryopreservation device according to claim 4, characterized in that: The pumping mechanism includes a motor, a rotating disk, and a clamping component for clamping the liquid delivery tube; The center of the rotating disk is fixedly connected to the rotating shaft of the motor, and rollers are arranged at equal intervals on the circumference of the rotating disk; the clamping components are arranged at intervals along the circumference of the rotating disk, and the distance between the clamping components and the rollers is smaller than the diameter of the liquid delivery tube.

6. The organ cryopreservation device according to claim 5, characterized in that: The clamping component is fixedly connected to the freezing cabinet body, and the length of the clamping component is greater than the distance between two adjacent rollers.

7. The organ cryopreservation device according to claim 6, characterized in that: The clamping component is provided with a groove for clamping the liquid delivery tube, and the opening of the groove faces the edge of the roller.

8. The organ cryopreservation device according to claim 7, characterized in that: The radial cross-sectional shape of the groove includes a semicircle, and the axial cross-sectional shape of the groove includes an arc shape.

9. The organ cryopreservation device according to claim 8, characterized in that: The materials of the space-occupying model include medical rubber, polyvinyl chloride, and polyethylene.

10. The organ cryopreservation device according to claim 9, characterized in that: An electric heating wire is wound around the outside of the liquid delivery pipe in the freezing cabinet; the electric heating wire, the compressor and the pumping mechanism are all connected to a power source; and the outer shell of the freezing cabinet is also wrapped with a heat insulation layer.

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