A blood warming device

Abstract

The present invention discloses a blood warming device, which relates to the technical field of liquid biological culture and separation devices. It includes a preheating vibration mechanism, a medium heating mechanism, and a blood transfusion tube wrapping mechanism; the preheating vibration mechanism includes two semi-cylinders; one end of the two semi-cylinders is hinged, and the other end is locked; the axis position of the semi-cylinder is provided with a semi-cylindrical groove; the side wall of the semi-cylindrical groove is made of silicone material; the interior of the semi-cylinder is a cavity structure; the top of the semi-cylinder is provided with a return liquid jack; a nozzle connected to the return liquid jack and closed at the end is provided in the semi-cylinder; a plurality of nozzles are evenly arranged vertically on the side wall of the nozzle; the nozzles are arranged opposite to the side wall of the semi-cylindrical groove and spaced a certain distance apart; the cavities of the two semi-cylinders are connected through an external connecting hose. The present invention realizes preheating and vibration of the infusion tube by setting the preheating vibration mechanism, and realizes gradual temperature increase of the infusion tube in conjunction with the blood transfusion tube wrapping mechanism to avoid the phenomenon of wall hanging.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid biological culture and separation devices, in particular to a blood warming device. Background Art

[0002] Blood cancer patients need blood transfusions in certain cases. For example, severe anemia or bleeding may occur during hematopoietic stem cell transplantation, chemotherapy or radiotherapy. At this time, blood transfusion can help improve oxygen carrying capacity, replenish lost blood components, and support the treatment process. When giving blood transfusions to patients, the blood usually needs to be warmed. Blood warming equipment in the prior art is usually divided into two forms, one is to heat the blood bag, and the other is to heat the blood transfusion tube. Both forms use heat conduction heating. The former, due to its large volume and low heat conduction efficiency, is prone to uneven heating. The latter, due to its small volume, can be heated evenly. However, when blood flows in the blood transfusion tube, when it flows through the blood warming equipment, the cold blood will suddenly be heated and adsorbed on the tube wall, resulting in a wall hanging phenomenon, which affects fluidity. Summary of the Invention

[0003] The main purpose of the present invention is to provide a blood warming device to solve the above problems.

[0004] To achieve the above-mentioned object, the present invention provides a blood warming device, comprising a preheating vibration mechanism, a medium heating mechanism, and a blood transfusion tube wrapping mechanism;

[0005] The preheating vibration mechanism comprises two symmetrically arranged semi-cylinders; one end of the two semi-cylinders is hinged and the other end is locked; a semi-cylindrical groove for wrapping a blood transfusion tube is provided at the axis of the semi-cylinder; the sidewalls of the semi-cylindrical groove are made of silicone material; the interior of the semi-cylinder is a cavity structure; the top of the semi-cylinder is provided with a liquid return socket; a nozzle connected to the liquid return socket and with a closed end is provided in the cavity of the semi-cylinder; a plurality of nozzles are evenly arranged vertically on the sidewalls of the nozzle; the nozzles are arranged opposite to the sidewalls of the semi-cylindrical groove and spaced a certain distance apart; the cavities of the two semi-cylinders are connected by an external connecting hose;

[0006] The medium heating mechanism includes a hollow cylindrical body, in which a heating mechanism and a water pump are disposed. A liquid outlet pipe is disposed at the bottom of the cylindrical body, and the liquid outlet of the water pump is connected to the liquid outlet pipe. One of the semi-cylinders is fixedly disposed on the top of the cylindrical body. The cylindrical body is connected to the semi-cylinder fixedly disposed on the cylindrical body via a through hole. A guide groove is disposed on the top of the cylindrical body, opposite to the semi-cylinder groove, and is used to guide the blood transfusion tube.

[0007] The blood transfusion tube wrapping mechanism includes an injection hose and a return hose; the bottom of the injection hose is connected to the bottom of the return hose, and the top of the injection hose is connected to the liquid outlet pipe; the main body of the return hose is C-shaped in cross-section, and a C-shaped liquid cavity is provided in the main body; the top of the return hose is provided with a hollow liquid collecting plate connected to the C-shaped liquid cavity, and the bottom of the hollow liquid collecting plate is provided with two return liquid intubations, which are respectively inserted into the return liquid inlets of the two semi-cylinders.

[0008] Furthermore, the interior of the medium heating mechanism is divided into three chambers by two partitions, namely the main heating chamber, the auxiliary heating chamber and the drainage chamber; the main heating chamber is connected to the bottom of the auxiliary heating chamber, and the auxiliary heating chamber is connected to the top of the drainage chamber; the heating mechanism includes a spiral heating tube and a heating plate; the through hole is arranged at the top of the main heating chamber, the main heating chamber is a spiral pipe, and the spiral heating tube is arranged in the spiral pipe; the heating plate is arranged at the bottom of the auxiliary heating chamber, and a first temperature sensor is arranged in the auxiliary heating chamber; a second temperature sensor is arranged at the bottom of the semi-cylindrical chamber fixedly connected to the cylindrical body; the water pump is arranged at the bottom of the drainage chamber.

[0009] Furthermore, a control panel is provided on the side wall of the medium heating mechanism; the first temperature sensor, the second temperature sensor, the water pump, the spiral heating tube and the heating plate are all electrically connected to the control panel.

[0010] Furthermore, a liquid level sensor is provided in the drainage chamber, and the liquid level sensor is located above the water pump and is electrically connected to the control panel.

[0011] Furthermore, a fixing mechanism is provided on the side wall of the medium heating mechanism.

[0012] Furthermore, the lower half of the liquid injection hose is fixedly connected to or integrally provided with the liquid return hose.

[0013] Furthermore, a main body cross-section of the liquid return hose from the top to the bottom of the guide groove is in an arc shape with an angle of less than 180 degrees.

[0014] Furthermore, the blood transfusion tube wrapping mechanism is provided with a plurality of models of different lengths.

[0015] The present invention has the following beneficial effects:

[0016] The present invention realizes preheating and vibration of the infusion tube by arranging a preheating vibration mechanism, and cooperates with the blood transfusion tube wrapping mechanism to realize gradual temperature increase of the infusion tube, thereby avoiding the wall hanging phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an overall schematic diagram of a blood warming device of the present invention.

[0018] Figure 2 This is a schematic diagram of the preheating vibration mechanism of a blood warming device of the present invention in the open state.

[0019] Figure 3 This is a cross-sectional view of a preheating vibration mechanism and a medium heating mechanism of a blood warming device of the present invention.

[0020] Figure 4 This is a cross-sectional view of the blood transfusion tube wrapping mechanism of a blood warming device of the present invention.

[0021] Figure 5 This is a partial schematic diagram of the blood transfusion tube wrapping mechanism of a blood warming device of the present invention.

[0022] Among them, 1-preheating vibration mechanism; 2-medium heating mechanism; 3-blood tube wrapping mechanism; 4-control panel; 5-fixing mechanism; 11-semi-cylinder; 12-semi-cylindrical groove; 13-return liquid socket; 14-connecting hose; 15-nozzle; 16-nozzle; 17-second temperature sensor; 18-through hole; 21-cylindrical body; 22-liquid outlet pipe; 23-guide groove; 24-liquid level sensor; 25-first temperature sensor; 26-water pump; 27-heating plate; 28-spiral heating tube; 31-liquid injection hose; 32-return liquid hose; 33-C-shaped liquid cavity; 34-hollow liquid collecting plate; 35-return liquid plug. DETAILED DESCRIPTION

[0023] In order to achieve the above-mentioned objectives and effects, the technical means and structures adopted by the present invention are described in detail with reference to the accompanying drawings for the features and functions of the preferred embodiments of the present invention.

[0024] like Figure 1-5 As shown, the present invention provides a blood warming device, comprising a preheating vibration mechanism 1, a medium heating mechanism 2 and a blood transfusion tube wrapping mechanism 3;

[0025] The preheating vibration mechanism 1 includes two symmetrically arranged semi-cylinders 11; one end of the two semi-cylinders 11 is hinged and the other end is locked. A semi-cylindrical groove 12 for wrapping a blood transfusion tube is provided at the axis of the semi-cylinder 11. The sidewall of the semi-cylindrical groove 12 is made of silicone material. The interior of the semi-cylinder 11 is a cavity structure. The top of the semi-cylinder 11 is provided with a return liquid socket 13. A nozzle 15 connected to the return liquid socket 13 and with a closed end is provided in the cavity of the semi-cylinder 11. A plurality of nozzles 16 are evenly and vertically arranged on the sidewall of the nozzle 15. The nozzles 16 are arranged opposite to the sidewall of the semi-cylindrical groove 12 and are spaced a certain distance apart. The cavities of the two semi-cylinders 11 are connected by an external connecting hose 14.

[0026] The medium heating mechanism 2 includes a hollow cylindrical body 21, which houses a heating mechanism and a water pump 26. A liquid outlet pipe 22 is provided at the bottom of the cylindrical body 21, and the liquid outlet of the water pump 26 is connected to the liquid outlet pipe 22. One of the semi-cylinders 11 is fixedly mounted on the top of the cylindrical body 21. The cylindrical body 21 communicates with the semi-cylinder 11 fixedly mounted on the cylindrical body 21 via a through hole 18. A guide groove 23 is provided at the top of the cylindrical body 21, opposite to the semi-cylindrical groove 12, for guiding the blood transfusion tube.

[0027] The blood transfusion tube wrapping mechanism 3 includes an injection hose 31 and a return liquid hose 32; the bottom of the injection hose 31 is connected to the bottom of the return liquid hose 32, and the top of the injection hose 31 is connected to the liquid outlet pipe 22; the main body of the return liquid hose 32 has a C-shaped cross-section, so that the blood transfusion tube can be placed into the C-shaped groove through the gap of the C-shaped groove, and a C-shaped liquid cavity 33 is provided in the main body to achieve uniform heating; the top of the return liquid hose 32 is provided with a hollow liquid collecting plate 34 connected to the C-shaped liquid cavity 33, and the bottom of the hollow liquid collecting plate 34 is provided with two return liquid intubations 35, which are respectively inserted into the return liquid inlet holes 13 of the two semi-cylinders 11.

[0028] During use, a heat transfer medium (e.g., water) is added to the preheating vibration mechanism 1 and the medium heating mechanism 2 through the liquid return jack 13; the two semi-cylinders 11 of the preheating vibration mechanism 1 are opened, the blood transfusion tube is placed in the semi-cylindrical groove 12 on the fixed semi-cylinder 11, and is guided to one side through the guide groove 23 of the medium heating mechanism 2; then the two semi-cylinders 11 are closed so that the blood transfusion tube is clamped in the two semi-cylindrical grooves 12; then, the blood transfusion tube wrapping mechanism 3 is installed, the two liquid return cannulas 35 of the blood transfusion tube wrapping mechanism 3 are respectively inserted into the liquid return jacks 13 of the two semi-cylinders 11, and the liquid injection hose 31 of the blood transfusion tube wrapping mechanism 3 is installed on the liquid outlet pipe 22; the water pump 26 and the heating mechanism are started, and the heating mechanism heats the heat transfer medium. The water pump 26 extracts the heated heat transfer medium and injects it into the liquid injection hose 31 through the liquid outlet pipe 22. The heat transfer medium in the liquid injection hose 31 flows from the bottom to the top of the return liquid hose 32. The heat transfer medium in the return liquid hose 32 is sprayed onto the side wall of the semi-cylindrical groove 12 through the hollow liquid collecting plate 34, the return liquid insert 35, the return liquid insert 13, the nozzle 15 and the nozzle 16, thereby preheating the blood transfusion tube clamped by the semi-cylindrical groove 12. At the same time, the two groups of nozzles 16 shoot at each other, generating self-excited vibration, which is then transmitted to the blood transfusion tube to prevent blood from sticking to the wall. Finally, the blood transfusion tube is placed into the C-shaped groove of the return liquid hose 32 through the gap in the C-shaped groove to heat the blood transfusion tube, so that the blood in the blood transfusion tube gradually rises in temperature along the flow direction, and the temperature reaches the highest at the position close to the human body.

[0029] In another embodiment, the interior of the medium heating mechanism 2 is divided into three chambers by two partitions: a main heating chamber, a secondary heating chamber, and a drainage chamber. The main heating chamber communicates with the bottom of the secondary heating chamber, which in turn communicates with the top of the drainage chamber. The heating mechanism includes a spiral heating tube 28 and a heating plate 27. The through hole 18 is provided at the top of the main heating chamber, which is a spiral pipe within which the spiral heating tube 28 is disposed. The heating plate 27 is provided at the bottom of the secondary heating chamber, which contains a first temperature sensor 25. A second temperature sensor 17 is provided at the bottom of the chamber of the semi-cylinder 11 fixedly connected to the cylindrical body 21. The water pump 26 is provided at the bottom of the drainage chamber. A control panel 4 is provided on the side wall of the medium heating mechanism 2. The first temperature sensor 25, the second temperature sensor 17, the water pump 26, the spiral heating tube 28, and the heating plate 27 are all electrically connected to the control panel 4.

[0030] The control panel 4 can set the heating temperature and start the equipment; the heating power of the spiral heating tube 28 can be changed according to the return liquid temperature detected by the second temperature sensor 17; the heating power of the heating plate 27 can be changed according to the temperature detected by the first temperature sensor 25 to fine-tune the temperature; when the temperature detected by the first temperature sensor 25 reaches the set value, the water pump 26 starts to drive the circulation of the heat transfer medium, and when the temperature reaches the set value, the water pump 26 stops working.

[0031] In another embodiment, a liquid level sensor 24 is provided in the drainage chamber. The liquid level sensor 24 is located above the water pump 26 and is electrically connected to the control panel 4. When medium blockage occurs, the liquid in the drainage chamber decreases. When the liquid level sensor 24 detects that the liquid level drops to a set value, the control panel 4 controls the water pump 26 to stop working and alarms to prevent the water pump 26 from being damaged by dry burning. When the liquid level sensor 24 detects that the liquid level is higher than the set value, the water pump 26 can be started again.

[0032] In another embodiment, a fixing mechanism 5 is further provided on the side wall of the medium heating mechanism 2 .

[0033] In another embodiment, the lower half of the liquid injection hose 31 is fixedly connected to or integrally provided with the liquid return hose 32 , so as to facilitate the overall movement of the liquid injection hose 31 and the liquid return hose 32 .

[0034] In another embodiment, the cross section of the main body from the top of the liquid return hose 32 to the bottom of the guide groove 23 is an arc shape less than 180 degrees, so as to facilitate the blood transfusion tube to enter the C-shaped groove of the liquid return hose 32.

[0035] In another embodiment, the blood transfusion tube wrapping mechanism 3 is provided with a plurality of models with different lengths, so that the blood transfusion tube wrapping mechanism 3 of an appropriate model can be replaced according to the length of a specific blood transfusion tube.

[0036] The above descriptions are only preferred embodiments of the present invention, not all embodiments. Anyone should be aware that any structural changes made under the guidance of the present invention, and any technical solutions that are the same or similar to those of the present invention, fall within the scope of protection of the present invention.

Claims

1. A blood warming device, characterized in that: It includes a preheating vibration mechanism, a medium heating mechanism and a blood transfusion tube wrapping mechanism; The preheating vibration mechanism comprises two symmetrically arranged semi-cylinders; one end of the two semi-cylinders is hinged and the other end is locked; a semi-cylindrical groove for wrapping a blood transfusion tube is provided at the axis of the semi-cylinder; the sidewalls of the semi-cylindrical groove are made of silicone material; the interior of the semi-cylinder is a cavity structure; the top of the semi-cylinder is provided with a liquid return socket; a nozzle connected to the liquid return socket and with a closed end is provided in the cavity of the semi-cylinder; a plurality of nozzles are evenly arranged vertically on the sidewalls of the nozzle; the nozzles are arranged opposite to the sidewalls of the semi-cylindrical groove and spaced a certain distance apart; the cavities of the two semi-cylinders are connected by an external connecting hose; The medium heating mechanism includes a hollow cylindrical body, in which a heating mechanism and a water pump are disposed. A liquid outlet pipe is disposed at the bottom of the cylindrical body, and the liquid outlet of the water pump is connected to the liquid outlet pipe. One of the semi-cylinders is fixedly disposed on the top of the cylindrical body. The cylindrical body is connected to the semi-cylinder fixedly disposed on the cylindrical body via a through hole. A guide groove is disposed on the top of the cylindrical body, opposite to the semi-cylinder groove, and is used to guide the blood transfusion tube. The blood transfusion tube wrapping mechanism includes an injection hose and a return hose; the bottom of the injection hose is connected to the bottom of the return hose, and the top of the injection hose is connected to the liquid outlet pipe; the main body of the return hose is C-shaped in cross-section, and a C-shaped liquid cavity is provided in the main body; the top of the return hose is provided with a hollow liquid collecting plate connected to the C-shaped liquid cavity, and the bottom of the hollow liquid collecting plate is provided with two return liquid intubations, which are respectively inserted into the return liquid inlets of the two semi-cylinders.

2. A blood warming device according to claim 1, characterized in that: The interior of the medium heating mechanism is divided into three chambers by two partitions, namely the main heating chamber, the auxiliary heating chamber and the drainage chamber; the main heating chamber is connected to the bottom of the auxiliary heating chamber, and the auxiliary heating chamber is connected to the top of the drainage chamber; the heating mechanism includes a spiral heating tube and a heating plate; the through hole is arranged at the top of the main heating chamber, the main heating chamber is a spiral pipe, and the spiral heating tube is arranged in the spiral pipe; the heating plate is arranged at the bottom of the auxiliary heating chamber, and a first temperature sensor is arranged in the auxiliary heating chamber; a second temperature sensor is arranged at the bottom of the semi-cylindrical chamber fixedly connected to the cylindrical body; the water pump is arranged at the bottom of the drainage chamber.

3. A blood warming device according to claim 2, characterized in that: A control panel is provided on the side wall of the medium heating mechanism; the first temperature sensor, the second temperature sensor, the water pump, the spiral heating tube and the heating plate are all electrically connected to the control panel.

4. A blood warming device according to claim 3, characterized in that: A liquid level sensor is provided in the drainage chamber, and the liquid level sensor is located above the water pump and is electrically connected to the control panel.

5. A blood warming device according to claim 1, characterized in that: A fixing mechanism is also provided on the side wall of the medium heating mechanism.

6. A blood warming device according to claim 1, characterized in that: The lower half of the liquid injection hose is fixedly connected to or integrally arranged with the liquid return hose.

7. A blood warming device according to claim 1, characterized in that: The cross section of the main body of the liquid return hose from the top to the bottom of the guide groove is in an arc shape with an angle of less than 180 degrees.

8. A blood warming device according to claim 1, characterized in that: The blood transfusion tube wrapping mechanism is provided with a plurality of models with different lengths.

Images