CN216368442U

CN216368442U - Blood centrifuge

Info

Publication number: CN216368442U
Application number: CN202122854213.9U
Authority: CN
Inventors: 何首俊; 梁栋科; 吴德华
Original assignee: Zhuhai Derui Medical Equipment Co ltd
Current assignee: Zhuhai Derui Medical Equipment Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-04-26
Anticipated expiration: 2031-11-19

Abstract

The utility model discloses a blood centrifuge, comprising: a base; the centrifugal turntable is round and is rotationally connected with the base; the separation device is provided with two, and two separation device settings are on centrifugal carousel, and two separation device are about centrifugal carousel's central symmetry, set up separation device on centrifugal carousel, and centrifugal blood can separate on centrifugal carousel, does not need manual discernment and separation to draw, labour saving and time saving, and is efficient.

Description

Blood centrifuge

Technical Field

The utility model relates to the technical field of centrifuges, in particular to a blood centrifuge.

Background

The blood is separated by standing after centrifugation, and the layers need to be separated after separation.

In the past, after blood is centrifuged, the blood needs to be taken out and then separated manually, which wastes time and labor, is troublesome and has low efficiency.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the blood centrifuge, which separates the blood on the centrifuge through the separation device, saves time and labor and improves the efficiency.

A blood centrifuge according to an embodiment of the first aspect of the utility model comprises: a base; the centrifugal turntable is arranged to be circular and is rotationally connected with the base; and the two separation devices are arranged on the centrifugal turntable and are symmetrical about the center of the centrifugal turntable.

The blood centrifuge provided by the embodiment of the utility model has at least the following beneficial effects: set up on the centrifugal turntable separator, centrifugal blood can separate on the centrifugal turntable, do not need manual discernment and separation to draw, labour saving and time saving, it is efficient.

According to some embodiments of the utility model, the separation device comprises, connected to the centrifugal rotor disk: a first syringe for containing blood; the manifold is communicated with the first injector; the second injector is communicated with the first branch pipe of the three-way valve; the three-way valve can be switched to be injected into the second injector by the first injector or injected into the third injector by the first injector, so that the separation is convenient, and the centrifuged blood still exists in the first injector, so that the three-way valve is switched according to the layering condition while the first injector is pushed, and the separation is convenient and quick; the second syringe and the third syringe can be directly used for injection after collecting the liquid, and a dropper is not needed for suction.

According to some embodiments of the present invention, a motor is disposed on the centrifugal turntable, the motor is connected to a reversing knob of the three-way valve, and the motor is configured to drive the three-way valve to communicate the first syringe with the second syringe or drive the three-way valve to communicate the first syringe with the third syringe, so that the three-way valve is more convenient to switch.

According to some embodiments of the utility model, the blood circulation monitoring device further comprises a groove-shaped photoelectric sensor, the first injector is communicated with the main pipe of the three-way valve through a pipeline, the pipeline is clamped in the groove-shaped photoelectric sensor, the groove-shaped photoelectric sensor is electrically connected with the motor and is used for controlling the angular displacement of the motor in rotation, and the groove-shaped photoelectric sensor can detect the layering condition of blood, so that the three-way valve is controlled to be reversed, and the automatic layering function is conveniently realized.

According to some embodiments of the utility model, the centrifugal separation device further comprises a push-pull assembly, the push-pull assembly is connected with the centrifugal turntable, the push-pull assembly is used for pushing or pulling the piston rod of the first syringe, the push-pull assembly is arranged, the trouble of manually pushing the piston rod of the first syringe can be avoided, and the separation and extraction efficiency is improved.

According to some embodiments of the utility model, the push-pull assembly comprises: the servo motor is connected with the centrifugal turntable; one end of the screw rod is rotatably connected with the centrifugal turntable, and the other end of the screw rod is connected with a main shaft of the servo motor; the sliding block is connected with the centrifugal turntable in a sliding mode, the sliding block is in threaded connection with the lead screw, the sliding block is connected with the piston rod of the first injector, and the positive and negative rotation of the servo motor is utilized to drive the lead screw to rotate positively and negatively so as to drive the sliding block to slide in a reciprocating mode, so that the piston rod of the first injector is pushed or pulled, and the use is facilitated.

According to some embodiments of the utility model, the sliding block is provided with a clamping groove for clamping the pressing part of the piston rod of the first syringe, so that the pressing part of the first syringe can be conveniently placed in the clamping groove, and the first syringe can be more conveniently replaced.

According to some embodiments of the present invention, the centrifugal turntable is connected with a first cover plate and a second cover plate, the first cover plate and the second cover plate are both hinged to the centrifugal turntable, the first cover plate and the second cover plate are both configured to be semicircular, the first cover plate and the second cover plate respectively cover one of the separation devices, so as to prevent the first syringe, the second syringe and the third syringe from being thrown out during centrifugal separation, the first cover plate and the second cover plate play roles of fixing and limiting, and the first cover plate and the second cover plate can be opened independently without interfering with each other, thereby facilitating use.

According to some embodiments of the present invention, the first cover plate and the second cover plate are both provided with a locking piece, the centrifugal turntable is provided with insertion holes, the insertion holes correspond to the locking pieces one to one, the locking pieces are used for inserting into the corresponding insertion holes, and the provided locking pieces can lock and buckle the corresponding first cover plate and the corresponding second cover plate on the centrifugal turntable, so that the first cover plate and the second cover plate can be connected with the centrifugal turntable more stably.

According to some embodiments of the utility model, the locking piece is hinged with the corresponding first cover plate or the corresponding second cover plate, the locking piece is connected with the corresponding first cover plate or the corresponding second cover plate through a torsion spring, the torsion spring is used for driving the locking piece to be inserted into the insertion hole, the locking piece is convenient to open, and self-locking reset is realized under the action of the torsion spring.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of a blood centrifuge according to an embodiment of the present invention with a second cover removed;

FIG. 2 is an exploded view of a blood centrifuge according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a lock block portion of the blood centrifuge shown in FIG. 1;

FIG. 4 is an exploded view of the portion of the lock block shown in FIG. 3;

FIG. 5 is a first schematic structural diagram of the blood centrifuge of the embodiment of the present invention, which is shown with the first cover plate, the second cover plate and the upper plate of the centrifugal turntable removed;

fig. 6 is a second structural diagram of the blood centrifuge according to the embodiment of the present invention, which is taken away from the first cover plate, the second cover plate and the upper panel of the centrifugal turntable.

A base 100;

a centrifugal turntable 200, a motor 210 and a jack 220;

a separation device 300, a first injector 310, a second injector 330, a third injector 340 and a groove-shaped photoelectric sensor 350;

a three-way valve 320, a header pipe 321, a first branch pipe 322, and a second branch pipe 323;

the push-pull assembly 400, the servo motor 410, the screw rod 420, the sliding block 430 and the clamping groove 431;

a first cover plate 500a, a second cover plate 500b, a locking piece 510, and a torsion spring 520.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does 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 thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 6, a blood centrifuge includes: a base 100; the centrifugal turntable 200 is round, and the centrifugal turntable 200 is rotatably connected with the base 100; the two separation devices 300 are arranged on the centrifugal turntable 200, the two separation devices 300 are symmetrical about the center of the centrifugal turntable 200, the separation devices 300 are arranged on the centrifugal turntable 200, the centrifuged blood can be separated on the centrifugal turntable 200, manual identification and separation extraction are not needed, time and labor are saved, and efficiency is high.

In some embodiments, the separation device 300 comprises, connected to the centrifugal rotor 200: a first syringe 310 for containing blood; a three-way valve 320, a manifold 321 communicated with the first injector 310; a second injector 330 communicating with the first branch 322 of the three-way valve 320; the third injector 340 is communicated with the second branch pipe 323 of the three-way valve 320, the first injector 310 is convenient for placing blood to be separated, the three-way valve 320 can be switched to be injected into the second injector 330 from the first injector 310 or to be injected into the third injector 340 from the first injector 310, the separation is convenient, and the centrifuged blood still exists in the first injector 310, only the first injector 310 needs to be pushed and the three-way valve 320 is switched according to the layering condition during the separation, so that the separation is convenient and rapid; the second syringe 330 and the third syringe 340 can be used for injection directly after collecting the liquid, and a dropper is not needed for suction.

In some embodiments, the centrifugal rotor 200 is provided with a motor 210, the motor 210 is connected to a reversing knob of the three-way valve 320, and the motor 210 is used for driving the three-way valve 320 to communicate the first injector 310 with the second injector 330, or driving the three-way valve 320 to communicate the first injector 310 with the third injector 340, so that the three-way valve 320 is more convenient to switch. It is understood that the motor 210 may be a second servo motor.

In some embodiments, the device further comprises a groove-shaped photoelectric sensor 350, the first injector 310 is communicated with a manifold of the three-way valve 320 through a pipeline 360, the pipeline 360 is clamped in the groove-shaped photoelectric sensor 350, the groove-shaped photoelectric sensor 350 is electrically connected with the motor 210, the groove-shaped photoelectric sensor 350 is used for controlling the angular displacement of the motor 210 in rotation, and the groove-shaped photoelectric sensor 350 can detect the layering condition of blood, so that the three-way valve 320 is controlled to perform reversing, and the automatic layering function is realized. It can be understood that the groove-shaped photoelectric sensor 350 is used as a detector, the detected signal is input into a corresponding processor, the processor sends the signal to the motor 210, and the motor 210 acts according to the signal, macroscopically, that is, after the first layer of separated blood is separated, the groove-shaped photoelectric sensor 350 detects different layers with different colors, and the motor 210 drives the three-way valve 320 to switch channels.

The specific working principle is as follows:

the first injector 310 is used for loading blood to be separated, the second injector 330 is used for loading a maximum molecular weight layer, such as a blood cell layer, the third injector 340 is used for loading a secondary maximum molecular weight layer, such as a blood platelet layer, the first injector 310 is used for leaving a lightest molecular weight layer, such as a blood plasma layer, after the centrifugal turntable 200 rotates, the first injector 310 rotates along with the turntable, the blood in the first injector 310 can form three distinct layers of separation in the first injector 310, the colors of the three layers are respectively blood red, white thin layers and light yellow, the first injector 310 is pushed by the push-pull assembly 400 so as to inject the red blood cell layer into the second injector 330, after the injection of the blood cell layer is finished, the groove-shaped photoelectric sensor 350 detects different colors, so that the driving motor 210 drives the three-way valve 320 to rotate so as to switch the channel of the three-way valve 320, so that the first injector 310 is communicated with the third injector 340, the now white platelet layer is injected into the third syringe 340, leaving a layer of light yellow plasma in the first syringe 310; the separation is directly carried out on the centrifugal turntable 200, which is convenient and fast.

In some embodiments, a push-pull assembly 400 is further included, the push-pull assembly 400 is connected to the centrifugal turntable 200, the push-pull assembly 400 is used for pushing or pulling the piston rod of the first syringe 310, and the push-pull assembly 400 is configured to avoid the trouble of manually pushing the piston rod of the first syringe 310, thereby improving the efficiency of separation and extraction.

In some embodiments, the push-pull assembly 400 includes: a servo motor 410 connected to the centrifugal turntable 200; one end of the screw rod 420 is rotatably connected with the centrifugal turntable 200, and the other end of the screw rod 420 is connected with a main shaft of the servo motor 410; the sliding block 430 is connected with the centrifugal turntable 200 in a sliding mode, the sliding block 430 is connected to the lead screw 420 in a threaded mode, the sliding block 430 is connected with the piston rod of the first injector 310, the lead screw 420 is driven to rotate forward and backward by the forward and backward rotation of the servo motor 410, the sliding block 430 is driven to slide back and forth, the piston rod of the first injector 310 is pushed or pulled, and the use is facilitated.

In some embodiments, the sliding block 430 is provided with a clamping groove 431, and the clamping groove 431 is used for clamping a pressing portion of the piston rod of the first syringe 310, so that the pressing portion of the first syringe 310 can be conveniently placed in the clamping groove 431, and the first syringe 310 can be more conveniently replaced.

In some embodiments, the centrifugal rotor 200 is connected with a first cover plate 500a and a second cover plate 500b, the first cover plate 500a and the second cover plate 500b are both hinged to the centrifugal rotor 200, the first cover plate 500a and the second cover plate 500b are both configured in a semicircular shape, the first cover plate 500a and the second cover plate 500b respectively cover one separation device 300, so as to prevent the first syringe 310, the second syringe 330 and the third syringe 340 from being thrown out during centrifugal separation, the first cover plate 500a and the second cover plate 500b play roles of fixing and limiting, and the first cover plate 500a and the second cover plate 500b can both be opened independently, do not interfere with each other, and are convenient to use.

In some embodiments, the first cover plate 500a and the second cover plate 500b are both provided with a locking block 510, the centrifugal turntable 200 is provided with insertion holes 220, the insertion holes 220 correspond to the locking blocks 510 one to one, the locking blocks 510 are used for inserting into the corresponding insertion holes 220, and the locking blocks 510 are arranged to lock the corresponding first cover plate 500a and the second cover plate 500b on the centrifugal turntable 200, so that the first cover plate 500a and the second cover plate 500b can be stably connected with the centrifugal turntable 200.

In some embodiments, the locking piece 510 is hinged to the corresponding first cover plate 500a or the second cover plate 500b, the locking piece 510 is connected to the corresponding first cover plate 500a or the second cover plate 500b through a torsion spring 520, the torsion spring 520 is used for driving the locking piece 510 to be inserted into the insertion hole 220, the locking piece 510 is convenient to open, and self-locking reset is realized under the action of the torsion spring 520.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A blood centrifuge, comprising:

a base;

the centrifugal turntable is arranged to be circular and is rotationally connected with the base;

and the two separation devices are arranged on the centrifugal turntable and are symmetrical about the center of the centrifugal turntable.

2. A hemocentrifuge according to claim 1, wherein the separation device comprises, connected to the centrifuge rotor:

a first syringe for containing blood;

the manifold is communicated with the first injector;

the second injector is communicated with the first branch pipe of the three-way valve;

and the third injector is communicated with the second branch pipe of the three-way valve.

3. A hemocentrifuge according to claim 2, characterized in that: the centrifugal turntable is provided with a motor, the motor is connected with a reversing knob of a three-way valve, and the motor is used for driving the three-way valve to communicate the first injector with the second injector or driving the three-way valve to communicate the first injector with the third injector.

4. A hemocentrifuge according to claim 3, characterized in that: still include cell type photoelectric sensor, first syringe passes through the pipeline intercommunication the house steward of three-way valve, the pipeline joint is in among the cell type photoelectric sensor, cell type photoelectric sensor electricity is connected the motor, cell type photoelectric sensor is used for controlling the rotatory angle displacement of motor.

5. A hemocentrifuge according to claim 2, characterized in that: the centrifugal rotating disc is connected with the piston rod of the first syringe through a sliding component, and the sliding component is used for sliding or pulling the piston rod of the first syringe.

6. A hemocentrifuge according to claim 5, characterized in that: the push-pull assembly comprises:

the servo motor is connected with the centrifugal turntable;

one end of the screw rod is rotatably connected with the centrifugal turntable, and the other end of the screw rod is connected with a main shaft of the servo motor;

the sliding block is connected with the centrifugal turntable in a sliding mode, the sliding block is in threaded connection with the screw rod, and the sliding block is connected with a piston rod of the first injector.

7. A hemocentrifuge according to claim 6, characterized in that: the sliding block is provided with a clamping groove, and the clamping groove is used for clamping the pressing part of the piston rod of the first syringe.

8. A blood centrifuge according to any of claims 1 to 7, wherein: the centrifugal turntable is connected with a first cover plate and a second cover plate, the first cover plate and the second cover plate are hinged to the centrifugal turntable, the first cover plate and the second cover plate are both semicircular, and the first cover plate and the second cover plate cover one separating device respectively.

9. A hemocentrifuge according to claim 8, characterized in that: the first cover plate and the second cover plate are provided with locking blocks, jacks are arranged on the centrifugal rotary disc, the jacks correspond to the locking blocks one to one, and the locking blocks are used for being inserted into the corresponding jacks.

10. A hemocentrifuge according to claim 9, characterized in that: the locking piece is hinged to the corresponding first cover plate or the corresponding second cover plate, the locking piece is connected with the corresponding first cover plate or the corresponding second cover plate through a torsion spring, and the torsion spring is used for driving the locking piece to be inserted into the jack.