Blood expresser for transfusion

Abstract

The application discloses a sufficient blood drainage type blood transfusion device, which comprises disposable blood transfusion consumables, the main body of the disposable blood transfusion consumables is connected with a first hose, a second hose and a third hose at one end, the other end of the first hose and the second hose can be respectively connected with a physiological saline bottle and a blood bag through joints, the other end of the third hose can be pierced into a human body through a needle, and a white blood cell filter is arranged on the pipeline, a fourth hose is additionally arranged between the first hose and the third hose, and the connecting point of the fourth hose and the third hose is located between the white blood cell filter and the needle, so that the platelets can be fully utilized and the blood resources can be saved.

Description

[0001] The present application relates to the technical field of blood transfusion devices, in particular to the technical field of blood transfusion devices of full blood discharge type.

[0002] Platelets are small pieces of cytoplasm that fall off from the cytoplasm of megakaryocytes matured in bone marrow, are important cells for maintaining the integrity of blood vessel walls, and are main functional cells for early hemostasis. At present, in order to prevent and treat bleeding caused by a decrease in the number of platelets or abnormal function, a blood transfusion device is usually used to transfuse platelets to patients, so as to restore and maintain the hemostasis and coagulation function of the body.

[0003] The existing blood transfusion device usually comprises a Y-shaped pipeline, connectors or needle heads arranged at three ends of the pipeline, and a speed controller and a Murphy drip tube arranged above the pipeline, such as the improved disposable blood transfusion device disclosed in the utility model with the announcement number CN210873405U. Some blood transfusion devices are additionally provided with a white blood cell filter above the pipeline to filter white blood cells (on the one hand, white blood cells may carry more viruses due to surrounding or phagocytosis, and inflammatory factors released by viruses are easy to cause transfusion reactions, and on the other hand, cell factors released after the decomposition of white blood cells also shorten the life of red blood cells). However, the blood transfusion device additionally provided with the white blood cell filter cannot fully discharge the blood cells adhered to the pipeline above the lower segment of the white blood cell filter, and there is a problem of waste of blood resources.

[0004] In addition, during the transfusion of platelets, in order to avoid the aggregation of platelets, medical staff also need to manually shake the blood bag from time to time. However, this causes certain troubles to the work of medical staff. The utility model with the announcement number CN215028255U also discloses a swinging and oscillating device for platelet transfusion. Although the device does not need manual oscillation, in order to achieve the purpose of horizontal and vertical vibration of the platelet bag, on the one hand, the driving structure (including a disc, a guide plate, a gear and a rack, etc.) is very complex (unconvenient for later maintenance), and on the other hand, the hooked blood bag is also easy to automatically unhook during the horizontal and vertical movement at a relatively fast speed.

[0005] The purpose of the present application is to solve the problems in the prior art, and to provide a blood transfusion device of full blood discharge type, which can ensure the full use of platelets and save blood resources.

[0006] ​​​In order to achieve the above object, the application provides a full blood drainage type blood transfusion device, which comprises disposable blood transfusion supplies, the main body of the disposable blood transfusion supplies is connected with a first hose, a second hose and a third hose at one end, the other end of the first hose and the second hose can be connected to a physiological saline bottle and a blood bag through a joint respectively, the other end of the third hose can be pierced into the human body through a needle, and a white blood cell filter is arranged on the pipeline, a fourth hose is arranged between the first hose and the third hose, and the connecting point of the fourth hose and the third hose is located between the white blood cell filter and the needle.

[0007] Preferably, the first hose, the second hose, the third hose and the fourth hose jointly realize flow rate adjustment and pipeline switching through a Mohf's dropper, a speed controller and a pipe closer.

[0008] Preferably, the first hose is inserted and connected with the second hose, the third hose and the fourth hose through a three-way pipe fitting, and the third hose is inserted and connected with the second hose and the fourth hose through a three-way pipe fitting.

[0009] Preferably, the application further comprises an electric shaking mechanism, the electric shaking mechanism comprises a bag seat, a shaking seat and a clamp, the shaking seat is clamped on the infusion rod through the clamp and can shake the bag seat, and a receiving cavity for accommodating the blood bag is arranged on the bag seat.

[0010] Preferably, the bag seat comprises a surrounding wall and a bottom plate, the surrounding wall is arranged around the top surface of the bottom plate and jointly surrounds the receiving cavity with the bottom plate, and the bottom plate is further provided with a notch.

[0011] Preferably, the surrounding wall has a detachable side plate.

[0012] Preferably, the shaking seat comprises a motor, a counterweight, main springs and a support frame, the periphery of the motor is suspended in the support frame through a plurality of main springs, the output shaft is eccentrically fixed with the counterweight, and the bag seat and the clamp are arranged on the motor and the support frame respectively.

[0013] Preferably, the shaking seat further comprises a base and auxiliary springs, the base is located below the support frame, a plurality of auxiliary springs are arranged between the support frame and the base respectively, and the clamp is indirectly connected with the support frame through the base and the auxiliary springs.

[0014] Preferably, the top surface of the base is further provided with a sunken part for the support frame to extend into.

[0015] Preferably, a swing rod is hinged on the support frame, and the bag seat is indirectly connected with the motor through the swing rod.

[0016] The application has the following beneficial effects:

[0017] 1) by installing the fourth hose between the first hose for connecting the physiological saline bottle and the third hose which can be used for transfusion of physiological saline and platelets respectively, the platelets adhered to the lower section of the third hose can be flushed into the patient's body by the physiological saline through the fourth hose bypassing the leukocyte filter after the platelet transfusion is completed, so as to ensure the full use of platelets and save blood resources;

[0018] 2) by installing the electric shaking mechanism composed of a bag seat, a shaking seat and a clamp, the shaking seat can be clamped on the infusion rod by the clamp, and the bag seat with a receiving cavity is used to hold the blood bag, so that the electric shaking of the blood bag in the limited area is realized when the shaking seat drives the bag seat to vibrate, which not only liberates the hands of medical staff, but also fundamentally avoids the occurrence of the blood bag unhooking phenomenon;

[0019] 3) by jointly using the motor, the counterweight, the main spring and the support frame as the main body of the shaking seat, and additionally arranging the base and the auxiliary spring below the main body, the counterweight can change the center of gravity during the eccentric rotation driven by the motor, so that the main spring and the auxiliary spring can be stretched and contracted, so that the shaking seat connected with the motor through the swing rod can swing and lift at the same time, so as to ensure the full shaking of the platelets.

[0020] The characteristics and advantages of the present application will be described in detail in conjunction with the embodiments and the accompanying drawings.

DRAWINGS

[0021] Fig. 1 is the use schematic diagram of the disposable transfusion consumables of the full blood drainage type transfusion device of the present application;

[0022] Fig. 2 is the front view of the electric shaking mechanism of the full blood drainage type transfusion device of the present application;

[0023] Fig. 3 is the front view of the shaking seat of the full blood drainage type transfusion device of the present application;

[0024] Fig. 4 is the top view of the bag seat of the full blood drainage type transfusion device of the present application.

[0025] In the figure: 1-disposable transfusion consumables, 11-first hose, 12-second hose, 13-third hose, 14-fourth hose, 15-joint, 16-needle, 17-leukocyte filter, 18-Forssell's dropper, 19-speed controller, 2-physiological saline bottle, 3-blood bag, 4-electric shaking mechanism, 41-bag seat, 411-enclosure, 412-bottom plate, 4121-notch, 42-shaking seat, 421-motor, 422-counterweight, 423-main spring, 424-support frame, 425-base, 426-auxiliary spring, 427-swing rod, 43-clamp.

DETAILED DESCRIPTION

[0026] Referring to Figs. 1 to 4 , the application is full blood type transfusion device, including disposable transfusion consumables 1, the main body of the disposable transfusion consumables 1 is first hose 11, second hose 12 and third hose 13 connected at one end, the other end of the first hose 11 and second hose 12 can be accessed into saline bottle 2 and blood bag 3 through joint 15 respectively, the other end of the third hose 13 can be pierced into the human body through needle 16 and the pipeline is also provided with leukocyte filter 17, the fourth hose 14 is installed between the first hose 11 and the third hose 13, and the connection point of the fourth hose 14 and the third hose 13 is located between leukocyte filter 17 and needle 16.

[0027] The first hose 11, the second hose 12, the third hose 13 and the fourth hose 14 realize flow rate regulation and pipeline switch through moffe's dropper 18, speed controller 19 and pipe closer.

[0028] The first hose 11 is respectively inserted and connected with the second hose 12, the third hose 13 and the fourth hose 14 through three-way pipe fittings, and the third hose 13 is respectively inserted and connected with the second hose 12 and the fourth hose 14 through three-way pipe fittings.

[0029] It also includes electric shaking mechanism 4, the electric shaking mechanism 4 includes bag seat 41, shaking seat 42 and clamp 43, the shaking seat 42 is clamped on the infusion rod through the clamp 43 and can shake the bag seat 41, and the bag seat 41 is provided with a receiving cavity for accommodating the blood bag 3.

[0030] The bag seat 41 includes enclosure 411 and bottom plate 412, the enclosure 411 is arranged around the top surface of the bottom plate 412 and is surrounded by the bottom plate 412 to form a receiving cavity with an opening at the top, and the bottom plate 412 is also provided with a notch 4121.

[0031] The enclosure 411 has a detachable side plate.

[0032] The shaking seat 42 includes motor 421, counterweight 422, main spring 423 and support frame 424, the periphery of the motor 421 is suspended in the support frame 424 through a plurality of main springs 423, and the output shaft is eccentrically fixed with the counterweight 422, and the bag seat 41 and the clamp 43 are respectively installed on the motor 421 and the support frame 424.

[0033] The shaking seat 42 also includes base 425 and auxiliary spring 426, the base 425 is located below the support frame 424, and a plurality of auxiliary springs 426 are respectively arranged between the support frame 424 and the base 425, and the clamp 43 is indirectly connected with the support frame 424 through the base 425 and the auxiliary spring 426.

[0034] The top surface of the base 425 is also provided with a sunken part for the support frame 424 to extend into.

[0035] The support frame 424 is hingedly connected with a swing rod 427, and the bag seat 41 is indirectly connected with the motor 421 through the swing rod 427.

[0036] Working process of the present application:

[0037] For the disposable transfusion consumables 1, before use, the first hose 11 and the second hose 12 are connected with the saline bottle 2 and the blood bag 3 through the joints 15 at the free ends respectively, and the third hose 13 is connected with the human body through the needle 16 at the free end. First, the second hose 12 and the fourth hose 14 are cut off by the clamp, so that the saline 2 can be gradually input into the patient's body from the saline bottle 2 along the first hose 11 and the third hose 13, thereby opening the vein passage with the saline. Then, the first hose 11 and the fourth hose 14 are cut off by the clamp, so that the platelets can be gradually input into the patient's body from the blood bag 3 along the second hose 12 and the third hose 13, thereby increasing the content of platelets in the patient's blood. In this process, the white blood cell filter 17 can also filter out the white blood cells, thereby avoiding unnecessary harm to the recipient caused by the blood transfusion treatment, and making the blood transfusion process safer. After the platelet infusion is completed, the old passage between the first hose 11 and the second hose 12 and the third hose 13 is cut off by the clamp, and the fourth hose 14 bypasses the white blood cell filter 17 and forms a new passage between the first hose 11 and the third hose 13, so that the saline 2 can be gradually input into the patient's body from the saline bottle 2 along the first hose 11, the fourth hose 14 and the third hose 13, and the platelets adhered to the lower segment of the third hose 13 are also flushed into the patient's body (to avoid waste of blood resources).

[0038] In addition, during the platelet infusion, the blood bag 3 can also be shaken by the electric shaking mechanism 4. Specifically, the blood bag 3 is placed in the receiving cavity of the bag seat 41, and the fittings at the bottom of the blood bag 3 are made to pass through the bottom plate 412 along the gap 4121. The side plate can be disassembled to facilitate the correct loading of the blood bag 3. During work, the counterweight 422 can be rotated under the driving action of the motor 421. Since the counterweight 422 is eccentrically arranged at the output shaft of the motor 421, the main springs 423 and the auxiliary springs 426 can be stretched and contracted by changing the position of the center of gravity. At this time, on the one hand, the bag seat 41 will continuously ascend and descend along the sunken part with the support frame 424, and on the other hand, the bag seat 41 will continuously swing relative to the support frame 424 with the swing rod 427. That is, the blood bag 3 in the bag seat 41 can swing and ascend at the same time.

[0039] The above examples are illustrative of the present application and are not limiting. Other embodiments of the present application will readily occur to those skilled in the art. The application is limited only by the claims.

Claims

1. A fully exsanguinating type blood transfusion apparatus characterized by: The utility model provides a blood transfusion device, which comprises a disposable blood transfusion device (1), a physiological saline bottle (2), a blood bag (3) and an electric shaking mechanism (4). The disposable blood transfusion device (1) comprises a first hose (11), a second hose (12) and a third hose (13) connected at one end, the other end of the first hose (11) and the second hose (12) is respectively connected to the physiological saline bottle (2) and the blood bag (3) through a joint (15), the other end of the third hose (13) is provided with a needle (16) for puncturing the human body, and a white blood cell filter (17) is arranged on the pipeline. The electric shaking mechanism (4) comprises a bag seat (41), a shaking seat (42) and a clamp (43), the shaking seat (42) is clamped on the infusion rod through the clamp (43) and can shake the bag seat (41), and the bag seat (41) is provided with a receiving cavity for accommodating the blood bag (3).

2. The fully draining blood transfusion set of claim 1, wherein: The shaking seat (42) comprises a motor (421), a counterweight (422), a main spring (423) and a support frame (424), the periphery of the motor (421) is suspended in the support frame (424) through a plurality of main springs (423), the output shaft is eccentrically fixed with the counterweight (422), and the bag seat (41) and the clamp (43) are arranged on the motor (421) and the support frame (424) respectively.

3. The fully draining blood transfusion set of claim 1, wherein: The shaking seat (42) further comprises a base (425) and a secondary spring (426), the base (425) is arranged below the support frame (424), a plurality of secondary springs (426) are arranged between the support frame (424) and the base (425), and the clamp (43) is indirectly connected with the support frame (424) through the base (425) and the secondary spring (426).

4. The fully draining blood transfusion set of claim 1, wherein: The first hose (11), the second hose (12), the third hose (13) and the fourth hose (14) are connected through a moffe dropper (18), a speed controller (19) and a pipe closer to realize flow rate adjustment and pipeline switching.

5. The fully-bleeding blood transfusion set as claimed in claim 4, wherein: The first hose (11) is connected with the second hose (12), the third hose (13) and the fourth hose (14) through a three-way pipe fitting.

6. The fully draining blood transfusion set of claim 1, wherein: The bag seat (41) comprises a surrounding fence (411) and a bottom plate (412), the surrounding fence (411) is arranged around the top surface of the bottom plate (412) and surrounds the receiving cavity with an opening at the top together with the bottom plate (412), and the bottom plate (412) is further provided with a notch (4121).

7. The fully draining blood transfusion set of claim 1, wherein: The surrounding fence (411) has a detachable side plate. The top surface of the base (425) is further provided with a sunken part for the support frame (424) to extend into. The support frame (424) is hinged with a swing rod (427), and the bag seat (41) is indirectly connected with the motor (421) through the swing rod (427).

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