Flow-adjustable blood transfusion apparatus

Abstract

The utility model discloses a flow-adjustable blood transfusion apparatus, which comprises a blood transfusion part, a flow adjusting part and a flow adjusting part, the adjusting part is communicated with the blood transfusion pipeline and comprises a quantitative adjusting part, and adjusting flow channels with different calibers are formed in the position, communicated with the blood transfusion pipeline, of the quantitative adjusting part; and the display part is connected with the quantitative adjusting piece. The flow rate of blood in the blood transfusion apparatus is controlled through the adjusting part, the qualitative adjusting part can roughly adjust the flow rate of the blood under the requirement of low flow rate in the early stage, then the flow rate is set according to the specific condition of a patient after the safety of the patient is determined, and the adjusting flow channel with the proper diameter can coincide with the blood transfusion pipeline by shifting the quantitative adjusting wheel. Therefore, the flow of the blood flowing out of the blood transfusion apparatus is accurately controlled within a required flow range, the blood transfusion safety is improved, and the blood transfusion efficiency of medical staff is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a blood transfusion device with adjustable flow rate. Background Art

[0002] With the high-quality development of hospitals and the increasing clinical requirements for blood transfusion safety, it is particularly important to strictly control the drip rate of the blood transfusion device during the transfusion process. Too slow a transfusion rate will cause the blood to stay outside the body for too long, affecting the blood quality. It will also cause the patient's body cells and tissues to be in a state of hypoxia, leading to fatigue and other adverse symptoms. Too fast a transfusion rate will cause a sudden increase in circulating blood volume, increase the burden on the heart, and cause heart failure and other problems. Therefore, medical staff need to fine-tune the transfusion rate according to the patient's specific situation.

[0003] The drip rate adjustment of the blood transfusion device follows the principle of slow first and then fast. The way medical staff adjust the drip rate is to know the number of blood drops per minute through a watch. In the early stage, the blood is dripped slowly to observe whether the patient has adverse reactions. In the later stage, the drip rate is adjusted faster according to the patient's specific situation. The key problem is that medical staff use watches to measure the speed of blood dripping, which is not only inefficient but also inaccurate. Utility Model Content

[0004] The utility model provides a blood transfusion device with adjustable flow rate to solve the problem that the blood transfusion device is difficult to accurately control the blood flow rate. The specific technical solution is as follows:

[0005] A flow-adjustable blood transfusion device comprises: a blood transfusion part, which comprises a hollow blood transfusion blood channel; an adjusting part communicated with the blood transfusion blood channel, which comprises a quantitative adjusting part, wherein a position where the quantitative adjusting part communicates with the blood transfusion blood channel forms channels of different calibers; and a display part connected with the quantitative adjusting part.

[0006] Furthermore, the quantitative adjustment component includes: a fixed bracket fixed on the blood transfusion channel, the fixed bracket is formed with an inlet flow channel and an outlet flow channel, and the axes of the inlet flow channel and the outlet flow channel both coincide with the blood transfusion channel; a quantitative adjustment wheel is arranged in the middle of the fixed bracket, the quantitative adjustment wheel is formed with at least two adjustment flow channels whose diameters are arranged in an arithmetic progression; a stud bolt that coincides with the axis of the quantitative adjustment wheel, the stud bolt connects the fixed bracket and the quantitative adjustment wheel, the axes of the inlet flow channel and the outlet flow channel coincide with the axis of the blood transfusion channel, the inlet flow channel and the outlet flow channel have the same diameter, a chamber is also formed at the bottom of the fixed bracket, the chamber is connected with the inlet flow channel and the adjustment flow channel, the axis of the quantitative adjustment wheel coincides with the axis of the stud bolt, and at least two adjustment flow channels are formed circumferentially of the quantitative adjustment wheel, the diameters of the adjustment flow channels are arranged in an arithmetic progression, and the adjustment flow channels can all coincide with the axis of the blood transfusion channel.

[0007] Preferably, the adjusting portion further comprises a qualitative adjusting member, which is arranged on the peripheral side of the blood transfusion channel, and the qualitative adjusting member can continuously change the cross-sectional area of ​​the contact portion between the blood transfusion channel and itself.

[0008] Preferably, the display unit includes a timer and a buzzer.

[0009] It can be seen from the above technical solution that the utility model has the following beneficial effects:

[0010] The utility model controls the flow rate of blood in the blood transfusion device through the regulating part, wherein the qualitative regulating part can roughly adjust the blood flow rate under the demand of low flow rate in the early stage, and then after determining the safety of the patient and setting the flow rate according to the specific situation of the patient, turning the quantitative regulating wheel can make the regulating flow channel of suitable diameter coincide with the blood transfusion blood channel, thereby accurately controlling the blood flow out of the blood transfusion device within the required flow range, thereby improving the safety of blood transfusion and the efficiency of blood transfusion by medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0012] Figure 2 This is a cross-sectional view of the quantitative adjustment member of the utility model;

[0013] Figure 3 This is a top view of the quantitative adjustment wheel of the utility model.

[0014] In the figure: 1. blood transfusion unit, 2. regulation unit, 3. display unit;

[0015] 11. puncture device, 12. air inlet tube, 13. blood transfusion channel, 14. drip bucket, 15. needle, 21. qualitative adjustment part, 22. quantitative adjustment part, 31. timer, 32. buzzer, 221. fixed bracket, 222. quantitative adjustment wheel, 223. stud bolt, 2211. inlet flow channel, 2212. chamber, 2221. adjustment flow channel, 2213. outlet flow channel. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] like Figure 1 As shown, the embodiment of the utility model includes a blood transfusion part 1, which includes a hollow blood transfusion blood channel 13, and a regulating part 2 is connected in the middle of the blood transfusion blood channel 13. The regulating part 2 is connected to the blood transfusion blood channel 13, and can control the flow rate of blood inside the blood transfusion blood channel 13, thereby controlling the blood flow entering the patient's body.

[0019] Among them, a puncture device 11 is fixedly connected to the upper end of the blood transfusion channel 13, and an air inlet pipe 12 that penetrates the blood transfusion channel 13 is connected around the puncture device 11. A drip bucket 14 that penetrates and is connected to the blood transfusion channel 13 is formed with a cavity to accommodate blood dripping from the upper end. A needle 15 is connected to the end of the blood transfusion channel 13, and the needle 15 is the outlet of the blood inside the blood transfusion channel 13.

[0020] Among them, the adjustment part 2 arranged between the drip bucket 14 and the needle 15 includes a qualitative adjustment part 21, which is provided with a pulley and a sloped slide groove. The pulley slides on the slide groove to change the cross-sectional area of ​​the blood transfusion channel 13 in contact with it, thereby changing the blood flow rate therein. The method of regulating blood flow by the qualitative adjustment part 21 has poor accuracy and is suitable for controlling the switch of the blood transfusion channel 13 and the blood flow rate that flows slowly in the early stage.

[0021] like Figure 2 As shown, the regulating part 2 also includes a quantitative regulating member 22, which includes a fixed bracket 221 fixedly connected to the blood transfusion channel 13, and a quantitative regulating wheel 222 arranged in the middle position of the fixed bracket 221 and rotatably connected thereto, wherein the fixed bracket 221 and the quantitative regulating wheel 222 are connected together by a stud bolt 223, and the axes of the three coincide.

[0022] Specifically, an inlet flow channel 2211 is formed on the upper end surface of the fixed bracket 221, and an outlet flow channel 2213 is formed on the lower end surface thereof. The inlet flow channel 2211 and the outlet flow channel 2213 have the same diameter and coincide with the axis of the blood transfusion channel 13. Secondly, a chamber 2212 is formed on the side of the fixed bracket 221 that contacts the upper surface of the quantitative adjustment wheel 222. The chamber 2212 can buffer the blood flowing into the blood transfusion channel 13 through the inlet flow channel 2211, so that the quantitative adjustment wheel 222 below the chamber 2212 has redundancy in regulating the blood flow, thereby improving the efficiency of regulating the flow.

[0023] Combination Figure 3 As shown, the quantitative adjustment wheel 222 can rotate around the stud bolt 223, and ten adjustment channels 2221 are evenly formed in its circumference. The diameters of the adjustment channels 2221 are distributed in an arithmetic progression, and according to the flow formula, different diameters can be designed to make the quantitative adjustment wheel 222 have ten adjustment channels 2221 with different flow rates of 10mL / h, 20mL / h, 30mL / h, 40mL / h, 50mL / h, 60mL / h, 70mL / h, 80mL / h, 90mL / h, and 100mL / h, wherein the diameter of the outlet channel 2213 is the same as the maximum diameter of the adjustment channel 2221, and the adjustment channel 2221 can be coaxial with the blood transfusion channel 13.

[0024] In addition, the display unit 3 includes a timer 31 and a buzzer 32. The time set by the timer 31 is obtained by the medical staff based on the total amount of blood required by the patient and the flow rate of the selected regulating channel 2221. When the blood transfusion time is about to reach the set value, the buzzer 32 makes a sound to remind the medical staff, thereby improving the efficiency of the medical staff in caring for the patient.

[0025] The specific use process of the utility model embodiment is as follows:

[0026] In the early stage, the qualitative adjustment element 21 is used to allow blood to flow slowly into the patient's body. When the patient's body has no adverse reactions, the specific total blood transfusion volume and blood transfusion flow rate are set according to the patient's specific conditions.

[0027] Then, the fluctuation quantitative adjustment wheel 222 is used to make the adjustment channel 2221 of appropriate diameter coincide with the inlet channel 2211 and the outlet channel 2213, so that the blood can enter the patient's body at a known stable flow rate. The transfusion time is then calculated by dividing the total blood transfusion volume by the blood flow rate. The time is set by the timer 31 to promptly notify the medical staff, which can not only improve the work efficiency of the medical staff, but also improve the blood transfusion safety and transfusion experience of the patients.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0029] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

Claims

1. A blood transfusion device with adjustable flow rate, characterized in that: include: A blood transfusion section (1), the blood transfusion section (1) comprising a hollow blood transfusion channel (13); an adjusting portion (2) in communication with the blood supply channel (13), the adjusting portion (2) comprising a quantitative adjusting member (22), and channels of different calibers are formed at a position where the quantitative adjusting member (22) is in communication with the blood supply channel (13); and A display unit (3) connected to the quantitative adjustment member (22).

2. The blood transfusion device according to claim 1, characterized in that: The quantitative adjustment member (22) comprises: A fixed support (221) fixed on the blood transfusion channel (13), the fixed support (221) being formed with an inlet flow channel (2211) and an outlet flow channel (2213), the axes of the inlet flow channel (2211) and the outlet flow channel (2213) both being coincident with the blood transfusion channel (13); A quantitative adjustment wheel (222) disposed in the middle of the fixed bracket (221), the quantitative adjustment wheel (222) being formed with at least two adjustment flow channels (2221) whose diameters are arranged in an arithmetic progression; A stud bolt (223) coincides with the axis of the quantitative adjustment wheel (222), and the stud bolt (223) connects the fixed bracket (221) and the quantitative adjustment wheel (222).

3. The blood transfusion device according to claim 2, characterized in that: The axes of the inlet flow channel (2211) and the outlet flow channel (2213) coincide with the axis of the blood supply channel (13), and the inlet flow channel (2211) and the outlet flow channel (2213) have the same diameter.

4. The blood transfusion device according to claim 2, characterized in that: A chamber (2212) is also formed at the bottom of the fixed support (221), and the chamber (2212) is in communication with the inlet flow channel (2211) and the regulating flow channel (2221).

5. The blood transfusion device according to claim 2, characterized in that: The axis of the quantitative adjustment wheel (222) coincides with the axis of the stud bolt (223), and at least two adjustment channels (2221) are formed circumferentially on the quantitative adjustment wheel (222). The diameters of the adjustment channels (2221) are arranged in an arithmetic progression, and the adjustment channels (2221) can coincide with the axis of the blood transfusion channel (13).

6. The blood transfusion device according to claim 1, characterized in that: The regulating portion (2) further comprises a qualitative regulating member (21), which is arranged on the peripheral side of the blood supply channel (13), and the qualitative regulating member (21) is capable of continuously changing the cross-sectional area of ​​the contact portion between the blood supply channel (13) and itself.

7. The blood transfusion device according to any one of claims 1 to 6, characterized in that: The display unit (3) includes a timer (31) and a buzzer (32).

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