TW202320873A - Automatic heating and pressurizing blood transfusion device including a frame body, a heating unit, a pressurizing unit, a sensing unit, a processing unit, and a blocking unit - Google Patents

Abstract

An automatic heating and pressurizing blood transfusion device includes a frame body, a heating unit, a pressurizing unit, a sensing unit, a processing unit, and a blocking unit. It is mainly characterized in that the volume of residual blood in the blood bag and the temperature of the blood in the transfusion tube are monitored through the sensing unit, and then the pressure applied to the blood bag and the heating temperature of the blood are adjusted according to the measurement result, and the blocking unit is used to control the blood output flow of the transfusion tube, so that the whole transfusion process can be maintained at a predetermined conditions and the quality of the transfusion can be steadily maintained.

Description

Automatic warming and pressurizing blood transfusion device

The invention relates to a blood transfusion device, in particular to a blood transfusion device that can be automatically heated and pressurized.

Blood transfusion is an important way to reduce the incidence of disease and mortality. It is estimated that about 100 million blood transfusions are performed every year due to disease or major trauma worldwide.

The blood used for blood transfusion is generally stored at low temperature, and the blood stored at low temperature is warmed to room temperature before use; in addition, in order to effectively allow the blood to be transfused into the patient's body more quickly, it is generally used through a pair of blood bags Pressurization to force blood into the body more quickly. However, too high/low temperature or too much pressure will affect the quality of blood transfusion. For example, directly using blood that has been warmed to normal temperature for blood transfusion is more likely to cause hypothermia in patients receiving blood, and when the temperature is too high (such as The temperature is greater than 42°C) and it is easy to make the red blood cell membrane in the blood become fragile; and when the pressurized pressure is greater than 300mmHg, it may easily cause blood cell rupture. In addition, improper storage environment may also cause the blood used for blood transfusion to coagulate into blood clots, and if the blood clots are transfused into the patient's body, it will also affect the patient's health.

Therefore, how to effectively control the pressure and temperature of the blood transfused into the patient, and monitor the condition of the blood transfused into the patient's body, so as to maintain a good quality of blood transfusion, is still the direction of continuous improvement for those in the related technical field.

Therefore, the object of the present invention is to provide an automatic warming and pressurizing blood transfusion device for a blood bag, and the blood bag can output the blood in the blood bag to the outside through a corresponding infusion line.

Therefore, the automatic warming and pressurizing blood transfusion device of the present invention includes a frame, a heating unit, a pressurizing unit, a sensing unit, a blocking unit, and a processing unit.

The frame is used for hanging at least one blood bag.

The heating unit is arranged on the frame body, and includes a housing that defines a heating space, has an inlet that communicates with the heating space and is opposite to each other, and an outlet that is located in the heating space. A pipeline channel, and a heater, the pipeline channel accommodates the infusion line, the heater is used to heat the infusion line located in the pipeline channel, and the infusion line can pass through the casing through the inlet and the outlet.

The pressurizing unit is arranged on the frame body, can accommodate the at least one blood bag, and has a pressurizing part capable of pressurizing the at least one blood bag.

The sensing unit has a temperature sensing element and a volume sensing element, the temperature sensing element can sense the temperature of the blood in the infusion line and correspondingly generate a temperature signal, the volume sensing element can sense The residual blood volume in the at least one blood bag generates a corresponding volume signal.

The blocking unit is disposed adjacent to the outlet, and has a clamping member capable of controlling the blood output flow of the infusion line.

The processing unit is signally connected with the sensing unit, the pressurizing unit and the blocking unit for receiving the temperature signal and the volume signal, and driving the heater, the pressurizing part and the clamping part accordingly.

The efficacy of the present invention lies in: the residual blood volume of the blood bag and the temperature of the blood in the infusion line are measured and monitored by the sensing unit, and then the pressure applied to the blood bag and the pressure on the blood are adjusted according to the measurement results. Heating the temperature, and using the blocking unit to control the blood output flow of the infusion line, so that the entire infusion process can be maintained at a predetermined condition, and the quality of the infusion can be maintained stably.

The relevant technical contents, features and effects of the present invention will be clearly presented in the following detailed description of the embodiments with reference to the drawings. In addition, it should be noted that the drawings of the present invention only represent the structure and/or relative positional relationship between components, and are not related to the actual size of each component.

Referring to FIG. 1 , an embodiment of the automatic warming and pressurizing blood transfusion device of the present invention is suitable for a blood bag 100 , and the blood 101 in the blood bag 100 can be output to the outside through an infusion line 102 .

This embodiment includes a frame 2 , a heating unit 3 , a pressurizing unit 4 , a sensing unit 5 , a processing unit 6 , a blocking unit 7 , a display unit 8 , and a power supply unit 9 .

The frame body 2 has a movable base 21, a hollow support rod 22 extending upward from the base 21, and a support rod 22 arranged at the end of the support rod 22 away from the base 21 and extending to the support rod 22. The side is provided with a hanger 23 for hanging other transfusion bags (not shown).

With reference to FIG. 2 , the heating unit 3 is arranged on the frame body 2 and includes a casing 31 , a pipeline channel 32 accommodated in the casing 31 , and a heater for heating the pipeline channel 32 . Device 33.

In detail, the casing 31 is arranged on the support rod 22 and is between the base 21 and the hanger 23, defines a heating space 311, and has communication with the heating space 311 and opposite to each other. An inlet 312 , an outlet 313 , and an exhaust pipe outlet 314 adjacent to the outlet 313 and upstream of the outlet 313 . The pipeline channel 32 is located in the heating space 311 and can accommodate the infusion pipeline 102 . One end of the infusion line 102 communicates with the blood bag 100, the other end enters the heating space 311 from the inlet 312 and is accommodated in the pipeline channel 32, and then extends out of the casing 31 through the outlet 313. In addition, the The infusion pipeline 102 also has an exhaust pipeline (not shown) communicating with the infusion pipeline 102 and extending from the exhaust pipeline outlet 314 . The heater 33 can be a heating coil, a heating tube, or a heating pack, etc., and is located in the heating space 311 and can cover at least part of the pipeline channel 32 to accommodate the infusion line in the pipeline channel 32. 102 heating.

In some embodiments, the heating temperature of the heater 33 is controlled between 37°C and 42°C.

With reference to FIG. 3 , FIG. 3( a ) and ( b ) are structural schematic diagrams of the closing and unfolding of the pressure member 42 . The pressurizing unit 4 is disposed on the frame body 2 and has a pressurizing member 42 for accommodating the blood bag 100 and pressurizing the blood bag 100 .

In detail, the pressurizing unit 4 has a housing 41 fixed on the support rod 22, the housing 41 defines an accommodating space, and the outer side of the housing 41 has a hanger for hanging the blood bag 100. A pendant 411, a pressurizing part 42 arranged on the outside of the casing 41 and capable of accommodating the blood bag 100, and an inflatable pump (not shown in the figure) which is accommodated in the accommodating space and communicated with the pressurizing part 42 shown), the pressurizing member 42 can be an inflatable pressurizing belt with an air bag, and the pressurizing member 42 is inflated/deflated through the inflatable pump, and the pressure device 42 can be controlled through the control of the air pressure. The pressure exerted by the blood bag 100 of the pressing member 42. In addition, it should be noted that when there are multiple blood bags 100, the pressurizing unit 4 may have multiple pressurizing members 42 that can accommodate the blood bags 100 and control the pressure respectively.

According to standard blood transfusion specifications: the drip rate is about 20-40gtt/min in the first 15-20 minutes, and the drip rate is 40-60gtt/min after 15-20 minutes. Therefore, the pressurizing unit 4 can be controlled at a pressure lower than 300 mmHg.

In some embodiments, the pressurizing unit 4 can be controlled at a pressure of 100-300 mmHg, and is suitable for inputting more than 50 mL per minute (recommended speed setting is 20-400 drops/min + full-open linear speed).

In some embodiments, the pressurizing unit 4 can be controlled at a pressure of 100-140 mmHg, the blood transfusion rate is 200-300 drops/min; when the pressure is 140-180 mmHg, the blood transfusion rate is 300-400 drops/min; When the pressure is 180-240 mmHg, the blood transfusion rate is linear.

The sensing unit 5 includes a temperature sensing element 51 capable of sensing the temperature of the blood 101 in the infusion line 102 and correspondingly generating a temperature signal, and a temperature sensing element 51 capable of sensing the residual blood volume in the blood bag 100 and generating Correspondingly, a volume sensing element 52 for a volume signal, and a blood sensing element 53 . The temperature sensing element 51 can be, for example, an infrared temperature sensor, capable of sensing the temperature of the blood 101 flowing through the infusion line 102 adjacent to the inlet 312 and/or the outlet 313 and generating the temperature signal. In this embodiment, the temperature sensing element 51 is illustrated by an infrared temperature sensor disposed adjacent to the outlet 313 as an example. The volume sensing element 52 can be, for example, an optical sensor for measuring the remaining amount of blood 101 in the blood bag 100 to generate the volume signal. The blood sensing element 53 can be an optical sensing element for measuring the state of the blood 101 in the infusion line 102. For example, the blood sensing element 53 can be used to sense whether the blood 101 contains air or clots, etc., and Generate a blood measurement signal.

The processing unit 6 can be integrated in the heating unit 4 or the pressurizing unit 4, and is signally connected with the heating unit 3, the pressurizing unit 4 and the sensing unit 5 for receiving the temperature signal and the volume signal, The heater 33 and the pressurizing member 42 can be driven according to the temperature signal and the calculation result of the volume signal, so that the blood 101 output to the human body (not shown) can be output at a predetermined temperature and flow rate. In this embodiment, the processing unit 6 is integrated into the pressurizing unit 4 as an example, but it is not limited to this in actual implementation.

In detail, the processing unit 6 can receive the temperature signal obtained by the temperature sensing element 51 to measure the temperature adjacent to the inlet 312 and the outlet 313 to obtain the temperature difference between the inlet 312 and the outlet 313, and adjust the temperature after calculating the temperature difference. The pressure of the pressurizing member 42 is used to control the time for the blood 101 of the infusion line 102 to flow through the housing 31 (that is, to control the heating time), so that the temperature of the blood 101 of the infusion line 102 when it flows to the outlet 313 can be controlled. A preset value is reached, wherein the preset value is between 37°C-42°C. In addition, the processing unit 6 can also maintain the consistency of the temperature of the blood 101 output from the warming unit 3 by receiving the temperature of the blood 101 at the outlet 313 and adjusting the operation of the heater 33 accordingly.

The blocking unit 7 is arranged adjacent to the outlet 313, and is signal-connected with the pressurizing unit 4, the sensing element 5 and the processing unit 6, and the processing unit 6 can receive the sensing signal of the sensing element 5, and according to the The sensing signal drives the blocking unit 7 to control the blood output flow of the infusion line 102, and/or stops the pressurizing unit 4 at the same time.

In detail, referring to FIG. 4 , the blocking unit 7 can be a clamping member 71 respectively disposed on both sides of the infusion line 102 , and can cooperate with the pressurizing unit 4 to control the flow rate of the blood 101 .

When the processing unit 6 receives the temperature sensing element 51 and detects that the temperature adjacent to the outlet 313 exceeds the preset value, it can drive the clamping member 71 to clamp the infusion line 102 to block the infusion line 102 The blood 101 in it flows and the pressurization and/or heating are stopped. Wherein, the preset value is the temperature range within which the quality of the blood 101 can be maintained as mentioned above, for example, 37°C-42°C.

In addition, the processing unit 6 can also receive the blood measurement signal measured by the blood sensing element 53 . When the blood 101 contains air or blood clots, the blood measurement signal is abnormal. At this time, the processing unit 6 will drive the blocking unit 7 to block the flow of the blood 101 in the infusion line 102 and pass through the infusion line 102 at the same time. The processing unit 6 stops the pressurizing member 42 from pressurizing the blood bag 100 . Furthermore, the gas or blood clot can be discharged through the exhaust pipeline located upstream of the clamping member 71 and communicated with the infusion pipeline 102, and the operation can continue after the abnormal condition is eliminated.

The display unit 8 is signal-connected with the sensing unit 5 and the processing unit 6, and can be used to display the value of the sensing unit 5 or other readable information, and can allow the user to freely Enter the pressure or temperature required for blood transfusion, or select the built-in temperature and pressure programming mode to control and monitor the blood transfusion. In addition, the display unit 8 can also have a warning device (not shown in the figure) at the same time. When the measured temperature signal or blood measurement signal exceeds the preset value or is abnormal, the warning device can generate a warning signal to Remind relevant personnel. Wherein, the warning signal can be sound, and/or text or pattern.

The power supply unit 9 includes a battery pack 91 electrically connected to the electrical components, a power cord 92 connected to the battery pack 91 , and a plug 93 connected to the power cord 92 . Wherein, the battery pack 91 can be accommodated in the housing 41 of the pressurizing unit 4, one end of the power cord 92 is connected to the battery, and the other end can extend from the support rod 22 and pass through an opening (not shown in the figure). ) through the support rod 22. In addition, the power cord 92 in the support pole 22 can be accommodated in the support pole 22 through a retractable cord reel 94 disposed in the casing 31, which can prevent the power cord 92 from being exposed and reduce messy lines. .

When the automatic warming and pressurizing blood transfusion device of the present invention is used for blood transfusion, the display unit 8 can be used to set relevant control parameters required for blood transfusion, and then the blood transfusion can be performed. And during the blood transfusion process, the volume sensing signal obtained by measuring the temperature sensing element 51 controls the pressure member 41 to pressurize the blood bag 100, so that the blood 101 can be output at a predetermined flow rate during the blood transfusion process; During blood transfusion, the warming unit 3 can be used to heat the blood 101 passing through the pipeline channel 32 so that the output blood 101 has a predetermined temperature. Furthermore, the temperature of the blood 101 adjacent to the inlet 312 and outlet 313 of the housing 31 can be measured through the temperature sensing element 51, and the temperature difference between the inlet 312 and the outlet 313 can be used to adjust the flow rate of the blood 101 accordingly. More precisely control the output temperature of the blood 101 . In addition, through the measurement assistance of the temperature sensing unit 51 and the blood sensing element 53, when the blood sensing element 53 detects that the blood 101 has an abnormal condition, for example, the temperature of the blood 101 is too high or too low, Or the blood 101 contains air, blood clots, etc., and the blocking unit 7 can also block the flow of the blood 101 in the infusion line 102 to immediately stop abnormal blood transfusion, thereby improving the quality of blood transfusion and the control of the blood transfusion process, so it is indeed possible to achieve purpose of the present invention.

But the above-mentioned ones are only embodiments of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of the present invention.

100: blood bag 101: blood 102: Infusion pipeline 2: frame body 21: base 22: support rod 23: hanger 3: Heating unit 31: shell 311: heating space 312: entrance 313: export 314: exhaust pipe outlet 32: pipeline channel 33: heater 4: Pressurization unit 41: shell 411: hanger 42:Pressure parts 5: Sensing unit 51: Temperature sensing element 52: volume sensing element 53: Blood sensing element 6: Processing unit 7: Blocking unit 71: clamp stop 8: Display unit 9: Power supply unit 91: battery pack 92: Power cord 93: plug 94: cord reel

Other features and functions of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein: Fig. 1 is a schematic diagram illustrating the embodiment of the automatic warming and pressurizing blood transfusion device of the present invention; Fig. 2 is a schematic diagram , illustrating the heating unit of this embodiment; FIG. 3 is a schematic diagram illustrating the pressing member of this embodiment; and FIG. 4 is a schematic diagram illustrating the clamping member of this embodiment.

100: blood bag

102: Infusion pipeline

2: frame body

21: base

22: support rod

23: hanger

3: Heating unit

31: Shell

312: entrance

313: export

314: exhaust pipe outlet

4: Pressurization unit

41: Shell

411: hanger

42:Pressure parts

6: Processing unit

8: Display unit

9: Power supply unit

91: battery pack

92: Power cord

93: plug

94: cord reel

Claims (9)

An automatic warming and pressurizing blood transfusion device, suitable for a blood bag for blood transfusion, and the blood bag can output the blood in the blood bag through a corresponding infusion line, including: A frame for hanging at least one blood bag; A heating unit, arranged on the frame, includes a housing that defines a heating space, and has an inlet that communicates with the heating space and is opposite to each other, and an outlet that is located in the heating space. And a pipeline channel for accommodating the infusion pipeline, and a heater, the pipeline channel can be used for setting the infusion pipeline, the heater is used to heat the infusion pipeline located in the at least one pipeline channel, and the infusion pipeline the housing is passable via an inlet and an outlet; a pressurizing unit, arranged on the frame body, capable of accommodating the at least one blood bag, having a pressurizing part capable of pressurizing the at least one blood bag; A sensing unit has a temperature sensing element and a volume sensing element, the temperature sensing element can sense the temperature of the blood in the infusion line and correspondingly generate a temperature signal, the volume sensing element can sense measuring the residual blood volume in the at least one blood bag and generating a corresponding volume signal; a blocking unit, disposed adjacent to the outlet, having a clamping member capable of controlling the blood output flow of the infusion line; and A processing unit is signal-connected with the sensing unit, the pressurizing unit and the blocking unit for receiving the temperature signal and the volume signal, and driving the heater, the pressurizing part and the clamping part accordingly. The automatic warming and pressurizing blood transfusion device as described in Claim 1, wherein the sensing unit further includes a blood sensing element, and the blood sensing element is used to measure the state of blood in the infusion line and generate a blood measurement signal, when the blood measurement signal is abnormal, the blocking unit will block the blood flow in the infusion line and at the same time stop the pressurizing part from pressurizing the blood bag through the processing unit. The automatic warming and pressurizing blood transfusion device according to Claim 2, wherein when the blood sensing unit detects that the blood in the transfusion line contains blood clots or air, the blood measurement signal is abnormal. The automatic warming and pressurizing blood transfusion device according to claim 1, wherein the processing unit can adjust the pressure of the pressurizing unit according to the temperature signal, and control the time for the blood of the infusion line to flow through the housing, In order to make the temperature of the blood in the infusion line at the outlet reach a preset value, the preset value is between 37°C and 42°C. The automatic warming and pressurizing blood transfusion device as described in Claim 4, wherein the temperature sensing element measures the temperature of the blood in the infusion line adjacent to the inlet and the outlet respectively, and the processing unit can base on the temperature of the inlet The temperature is adjusted accordingly to the pressurizing unit, and when the temperature of the outlet exceeds the preset value, the blocking unit blocks the blood flow in the infusion line. The automatic warming and pressurizing blood transfusion device according to claim 1, wherein the frame body includes a base and a support rod extending upward from the base, and the heating unit and the pressurizing unit are arranged on the support rod . The automatic warming and pressurizing blood transfusion device as described in claim 6, wherein the pressurizing unit has a housing fixed on the support rod for hanging the blood bag and a housing outside the housing and A pressurizing part for accommodating the blood bag and pressurizing the blood bag is provided. The automatic warming and pressurizing blood transfusion device as described in Claim 7, wherein the casing of the pressurizing unit defines an accommodating space, and the automatic warming and pressurizing blood transfusion device further includes a power supply unit, and the power supply unit includes a A battery pack electrically connected to the power-demanding elements, a power cord connected to the battery pack, and a plug connected to the power cord, the battery pack is accommodated in the accommodating space, and the power cord can be accommodated in the inside the support rod. The automatic warming and pressurizing blood transfusion device according to claim 1 further includes a display unit which is connected to the sensing unit and can be used to display the value of the sensing unit.

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