CN211383022U - Exhaust device - Google Patents

Abstract

The utility model provides an exhaust device, including mounting panel, dog, rotor seat, gyro wheel and drive division. The dog sets up in the mounting panel, and the dog has the draw-in groove that is used for fixed confession plasma pipe to place. The rotor seat rotates and is arranged on the mounting plate, and the roller is arranged on the rotor seat, partially extends into the clamping groove and is used for extruding the plasma catheter. The driving part is used for providing rotary power for the rotation of the rotor seat. Through setting up rotor seat and gyro wheel, can be through the mode of extrusion, discharge the air in the plasma pipe under the condition of not damaging the plasma pipe for fill plasma in the plasma pipe, thereby reach the condition that siphon effect produced. Has the function of discharging the plasma duct gas by extrusion.

Description

Exhaust device

Technical Field

The application relates to the technical field of medical equipment, in particular to an exhaust device.

Background

The cryoprecipitation is to adopt a specific method to melt fresh frozen plasma in a storage period at 1-6 ℃ and separate most of the plasma, and the rest 40-50 mL of insoluble substances are cryoprecipitate (containing factor VIII and fibrinogen), and are mainly used for treating hemophilia, postoperative hemorrhage, severe trauma, DIC, fibrinogen and clotting factor deficiency and other patients.

The existing preparation method of plasma cryoprecipitate mainly comprises a water bath siphon method: fresh frozen plasma is placed in a constant-temperature circulating water tank at 4 ℃, an empty connecting bag is suspended outside the tank, and a certain fall is generated between the two bags. When the frozen plasma is thawed, due to the siphon effect, the thawed plasma flows into the empty bag, and the residual 40-50 mL of components are cryoprecipitate.

At present, the preparation of the cryoprecipitate is mainly carried out by a water bath siphon method in the industry. Siphon is to fill liquid in an inverted U-shaped tubular structure by utilizing the action force phenomenon of liquid level difference, then place the end with a high opening in a container filled with liquid, and the liquid in the container can continuously flow out to a lower position through a siphon pipe to finally obtain cold precipitation, but the generation of siphon effect requires specific conditions.

SUMMERY OF THE UTILITY MODEL

The purpose of this application is to provide an exhaust apparatus, it can be quick exhaust the air in plasma bag and pipe.

The embodiment of the application provides an exhaust apparatus, including mounting panel, dog, rotor seat, gyro wheel and drive division. The dog, the dog sets up in the mounting panel, and the dog has the draw-in groove that is used for fixed confession plasma pipe to place. The rotor seat rotates and is arranged on the mounting plate, and the roller is arranged on the rotor seat, partially extends into the clamping groove and is used for extruding the plasma catheter. The driving part is used for providing rotary power for the rotation of the rotor seat.

The application provides an exhaust apparatus, through setting up rotor seat and gyro wheel, along with the rotation of rotor seat, drive the gyro wheel and rotate, the wheel face of gyro wheel extrudees the gas in the plasma pipe can discharge the plasma pipe gradually, also namely through extruded mode, with the air escape in the plasma pipe under the condition that does not damage the plasma pipe for be full of plasma in the plasma pipe, thereby reach the condition that siphon effect produced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is an exploded view of an exhaust device according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of an exhaust apparatus provided in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a mounting plate according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of an exhaust device according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a stopper according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a rotor base according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a roller according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the preparation process of the cryoprecipitation, a part of air can be stored in the plasma bag in the preparation process, when the conduit is full of air, siphoning can not occur even if the double-connected bag has a liquid level difference, the air in the plasma bag needs to be discharged to the empty bag below, the conduit is full of plasma, and the siphoning effect can be generated. In order to cause a siphon effect in blood product medical devices, it is necessary to vent the air in the plasma tube. Therefore, the inventors propose an exhaust device in the embodiment of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, the present embodiment provides an exhaust apparatus 10, which includes a mounting plate 100, a stopper 200, a rotor base 300, a roller 400, and a driving portion 500.

Referring to fig. 1, the mounting plate 100 is substantially plate-shaped, and the mounting plate 100 includes a first surface 110 and a second surface 120 facing away from each other. Referring to fig. 2 and 3, in some embodiments, the mounting plate 100 defines a through hole 130 penetrating the first surface 110 and the second surface 120. The mounting plate 100 is used for mounting the fixed stopper 200, the rotor holder 300 and the driving part 500, the mounting plate 100 is further provided with a first screw hole 140 and a second screw hole 150, the first screw hole 140 is used for connecting the fixed driving part 500, and the second screw hole 150 is used for connecting the fixed stopper 200.

In other embodiments, the mounting plate 100 may also be circular or have other shapes, and the material of the mounting plate 100 may be an alloy, a metal, or other materials with certain hardness for withstanding the vibration generated by the exhaust device 10 during operation. Of course, the mounting plate 100 may also be made of other materials, such as: plastic, etc.

Referring to fig. 2 and 4, a stopper 200 is disposed on the mounting plate 100, and the stopper 200 includes a slot 210 for fixing the plasma tube 20. The engaging groove 210 is substantially U-shaped, and the engaging groove 210 penetrates the stopper 200 along the Y-direction of the length stopper 200. In some embodiments, the stop 200 further comprises a first stop 220 and a second stop 230. The first stopper 220 and the second stopper 230 form a slot 210 therebetween. Referring to fig. 1 and 4, the first stopper 220 is disposed on the mounting plate 100, the first stopper 220 is provided with a first groove 222 and a first fixing hole 224, the first stopper 220 has a first side surface 226 and a second side surface 228, the first side surface 226 and the second side surface 228 face away from each other, the first side surface 226 is perpendicular to the second surface 120 of the mounting plate 100, the first fixing hole 224 penetrates through the first side surface 226 and the second side surface 228, the first fixing hole 224 is communicated with the slot 210, and the first groove 222 penetrates through the first stopper 220 and is communicated with the slot 210. The second stopper 230 is disposed on the mounting plate 100, the second stopper 230 defines a second fixing hole 234 and a third threaded hole 235, the second stopper 230 has a third side 236 and a fourth side 238, the third side 236 and the fourth side 238 face away from each other, and the third side 236 is perpendicular to the second surface 120 of the mounting plate 100. The second fixing hole 234 is arranged in parallel with the first fixing hole 224, the second threaded hole 235 is perpendicular to the mounting plate 100, the third threaded hole 235 is perpendicular to the second fixing hole 234, the third threaded hole 235 corresponds to the second threaded hole 150 in position, and a screw extends into the first threaded hole 140 and the third threaded hole 235 to be connected with the second stopper 230 and the mounting plate 100.

In some embodiments, the second stopper 230 further has a second groove 232, the second groove 232 is opened at an edge of the second stopper 230 close to the first stopper 220 and is communicated with the clamping groove 210, the position of the second groove 232 approximately corresponds to the first groove 222, the arrangement of the second groove 232 enables the plasma conduit 20 to be bent when being squeezed and partially attached to the second groove 232, so as to increase a contact area between the roller 300 and the plasma conduit 20, enable the plasma conduit 20 to be sufficiently squeezed by the roller 300, and better achieve a purpose of discharging air in the plasma conduit 20.

In other embodiments, the clamping groove 210 may also close the U-shaped opening, so that the clamping groove 210 is in the form of a through hole, and the plasma tube 20 can be better fixed when the plasma tube 20 is placed into the clamping groove 210.

Referring to fig. 1, the rotor holder 300 is rotatably disposed on the mounting plate 100. Referring to fig. 6, in some embodiments, the rotor holder 300 is disposed on the second surface 120, and the rotation axis of the rotor holder 300 is substantially perpendicular to the second surface of the mounting plate 100.

In some embodiments, rotor base 300 includes a first plate 310, a mounting shaft 320, and an optional second plate 330. The first plate 310 is rotatably disposed on the mounting plate 100, and the first plate 310 is substantially circular, wherein the first plate 310 is substantially matched with the first groove 222, and when the first plate 310 rotates, a portion of the first plate is inserted into the first groove 222 and does not interfere with the first stopper 220.

The second plate 330 is plate-shaped, and the second plate 330 and the first plate 310 are spaced apart from each other. The mounting shaft 320 is connected to a side of the first plate 310 away from the mounting plate 100, and the second plate 330 is disposed opposite to the first plate 310. The two ends of the mounting shaft 320 are respectively connected to the first plate 310 and the second plate 320, the mounting shaft 320 is a substantially cylindrical body, in some embodiments, the rotor base 300 has three mounting shafts 320, the three mounting shafts 320 are in an annular array along the axis of the rotor base 300, where the annular array means that the three mounting shafts 320 are arranged in a circle along the circle of 120 ° of the first plate 310, and the center of the cross section of each mounting shaft 320 is on the circle of the first plate 310. Further, in some embodiments, a support body may be further provided, which is disposed in the middle of the three mounting shafts 320, and is used for supporting the extruded plasma tube 20 of the roller 400.

Referring to fig. 4, the roller 400 is disposed on the rotor base 300, and the roller 400 at least partially protrudes from the rotor base and may partially protrude into the clamping groove 210, and is used for pressing the plasma tube 20. The connection mode of the roller 400 and the rotor base 300 may be fixed, or may be relatively rotated. The roller 400 is substantially similar to a tire shape, wherein at least partially protruding means that the pressing surface 430 of the roller 400 is partially located outside the first plate 310 during rotation, so that the pressing surface 430 can extend into the neck 210 to contact and press the plasma tube 20 when the roller 400 rotates with the rotor base 300.

Referring to fig. 7, the roller 400 includes a first end surface 410, a second end surface 420, a pressing surface 430 and a mounting hole 440, wherein the first end surface 410 and the second end surface 420 are disposed in parallel. The mounting hole 440 penetrates the first and second end surfaces 410 and 420. The roller 400 is disposed on the rotor base 300, the first end surface 410 is connected to the first plate 310, the second end surface 420 is connected to the second plate 330, and the mounting shaft 320 penetrates through the mounting hole 440 and is connected to the roller 400. In some embodiments, the protrusion of the roller 400 selectively contacts and presses the side of the plasma tube 20 facing away from the roller 400 during rotation with the rotor holder 300, which may allow for more complete compression. In some embodiments, the number of the rollers 400 is at least two, and at least two rollers 400 are distributed annularly along the axis of the rotor base 300, where the annular distribution means that the rollers 400 are all disposed on the same circular contour line, and the rollers 400 may be disposed uniformly annularly or at any angle. The annular array can ensure that the pressing surfaces 430 of the rollers 400 are pressed at the same position of the plasma guide tube 20, and the stability of the pressing is ensured. In some embodiments, the roller 400 is mounted on the mounting shaft 320, the pressing surface 430 of the roller 400 at least partially extends into the slot 210 through the first groove 222, when the roller 400 rotates along with the rotor base 300, at least a portion of the roller 400 selectively extends into the second groove 232, and selectively presses the plasma conduit 20 to be attached to the second groove surface, so that the pressing area is increased, the pressing is sufficient, and meanwhile, the plasma conduit 20 is intercepted at a certain angle, so that a better preparation effect can be obtained.

In some embodiments, one roller 400 is disposed at the center of the plurality of rollers 400 in an annular array, and the roller 400 at the center is tangent to the circumferential surface of the outer roller 400, so as to enhance the force that the roller 400 can bear during the process of squeezing the plasma tube 20, and improve the stability and the service life of the rotor base 300 and the roller as a whole.

The driving part 500 serves to provide rotational power for the rotation of the rotor holder 300. In some embodiments, the driving part 500 is disposed on the first surface 110 of the mounting plate 100, the driving part 500 has a driving shaft 510 and a driving body 520, the driving shaft 510 and the driving body 520 are distributed in a step shape, the section of the driving shaft 510 is smaller than that of the driving body 520, the driving body 520 is provided with a plurality of connection holes 522, the connection holes 522 correspond to the positions of the first threaded holes 140 of the mounting plate 100, and screws fix the mounting plate 100 and the driving part 500 by passing through the first threaded holes 140 and extending into the connection holes 522. The driving shaft 510 is coupled with the rotor holder 300 through the penetration hole 130.

In some embodiments, the driving shaft 510 passes through the through hole 130 to be coupled to the mounting shaft 320 located at the center of the first plate 310 and drives the rotor holder 300 to rotate. The mounting shaft 320 and the driving shaft 510 may be coupled in a manner to provide a more stable coupling while reducing vibration caused during the power supply of the driving part 500. In other embodiments, the driving shaft 510 may be connected to the first plate 310, so that the assembly is easier and the assembly is easier.

In some embodiments, the driving part 500 may be a motor, and the motor may be further provided with a motion controller electrically connected to the origin sensor and controlling a rotation angle of the motor, wherein the motion controller may precisely control a rotation angle of the motor, the motion controller includes a dedicated chip motion controller, a PC motion controller, and the like, and the origin sensor refers to a sensor for origin location sensing an initial position of the wheel 400. The motion controller is used in cooperation with the origin inductor, so that the extrusion is more efficient and controllable, and the cold precipitation can be prepared to obtain a better effect.

In other embodiments, the driving part 500 may also be a device with manual power, and the technician can control the device to generate power, thereby greatly saving cost.

In some embodiments, the plasma tube 20 further comprises an elastic member 600, wherein the elastic member 600 is disposed on the stopper 200 and at least partially located in the clamping groove 210, and is used for abutting against the plasma tube 600. In some embodiments, the elastic member 600 is disposed in the second fixing hole 234 and can freely extend and contract in the second fixing hole 234, the material of the elastic member 600 is rubber, silicon rubber, or other materials with elasticity and surface friction force, and as an embodiment, the portion of the elastic member 600 abutting against the plasma tube 20 may be an elastic material with wear resistance. In some embodiments, the elastic member 600 may also be disposed in the first fixing hole 224 and partially extend into the clamping groove 210, and also has the function of resisting against the plasma conduit 20. In other embodiments, the second fixing hole 234 may not be provided, and the elastic member 600 is directly fixedly disposed on the stopper 200 and extends into the slot 210 for abutting against the plasma tube 20, so as to simplify the device and reduce the number of operation steps.

Referring to fig. 1, in some embodiments, the exhaust device may further include a position sensor 700, the position sensor 700 facing the card slot 210 and configured to detect the position of the plasma tube 20 in the card slot 210. Detecting the position of the plasma tube 20 refers to detecting whether the plasma tube 20 is locked in place in the card slot 210, and whether the plasma tube 20 is in the position in the card slot with risk of ejection. In some embodiments, the position sensor 700 may be selected to be a fiber optic sensor with reliable performance, higher accuracy, and higher sensitivity. In some embodiments, the position sensor 700 extends into the first fixed hole 224 from the first side 226, so that the current position of the plasma tube 20 can be known in real time. In other embodiments, the position sensor 700 may extend from the fourth side 238 into the second fixing hole 234 or may extend from a middle position of the fourth side 238 into the slot 210. In other embodiments, the position sensor 700 may further include an alarm portion, which may be used to alarm when the plasma tube 20 is out of the engagement position when the air-bleeding device is in operation, so as to reduce the loss when the operation position does not reach the standard. In other embodiments, the position sensor 700 may also be selected from photoelectric position sensors, hall position sensors, and other sensor devices with high sensitivity and high accuracy.

The beneficial effects that can be achieved by the air-protecting and exhausting device 10 provided by the embodiment comprise:

1. the exhaust device is easier to manufacture and assemble through the motor and the rotor seat; the special clamping groove is provided for placing the plasma catheter 20, and the clamping groove for placing the plasma catheter 20 is linear, so that the operation of technicians can be facilitated;

2. the arrangement of the elastic part can better prevent the plasma conduit 20 from falling off;

3. the position sensor enhances the detection of the position of the plasma catheter 20 and simultaneously ensures the safety of the exhaust device in the use process;

4. the roller and the rotor seat have stable structures, longer service life and reduced failure rate;

5. the device is simple, the cost is lower, and the functionality is obviously improved.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. An exhaust apparatus, comprising:

mounting a plate;

the stop block is arranged on the mounting plate and is provided with a clamping groove for fixing the blood supply plasma catheter to be placed;

the rotor seat is rotatably arranged on the mounting plate;

the roller is arranged on the rotor seat, at least partially protrudes out of the rotor seat and partially extends into the clamping groove, and is used for extruding the plasma catheter;

a driving part for providing the rotor base with rotational power.

2. The exhaust apparatus of claim 1, wherein the rotor seat comprises:

the first plate body is rotatably arranged on the mounting plate;

the installation axle, the installation connect in keeping away from of first plate body one side of mounting panel, the gyro wheel install in the installation axle.

3. The exhaust apparatus as claimed in claim 2, wherein the rotor base further includes a second plate body disposed opposite to the first plate body, and both ends of the mounting shaft are connected to the first plate body and the second plate body, respectively.

4. The exhaust apparatus of claim 1, wherein the stop comprises:

the first stop block is arranged on the mounting plate;

the second stop block is arranged on the mounting plate and is arranged opposite to the first stop block, the clamping groove is formed between the second stop block and the first stop block, the first stop block is provided with a first groove, the first groove penetrates through the first stop block and is communicated with the clamping groove, the roller passes through at least part of the first groove and extends into the clamping groove, and the rotating axis of the rotor seat is perpendicular to the mounting plate.

5. The exhaust apparatus as claimed in claim 4, wherein the second stopper further has a second groove opened at an edge of the second stopper adjacent to the first stopper and communicating with the slot, the roller selectively extending at least partially into the second groove when the roller rotates with the rotor base.

6. The venting device as recited in claim 4 further comprising a resilient member disposed on the stopper and at least partially within the slot for abutting against the plasma conduit.

7. The exhaust apparatus according to claim 4 further comprising a position sensor facing said card slot for detecting the position of a plasma conduit in said card slot.

8. The exhaust apparatus as claimed in claim 1, wherein the driving part has a driving shaft, the mounting plate includes a first surface and a second surface facing away from each other, the mounting plate is opened with a through hole penetrating through the first surface and the second surface, the driving part is disposed on the first surface of the mounting plate, the rotor seat is disposed on the second surface, and the driving shaft is connected to the rotor seat through the through hole.

9. The exhaust apparatus according to claim 1, wherein the driving part is a motor provided with a motion controller and an origin sensor, the motion controller being electrically connected to the origin sensor and controlling a rotation angle of the motor.

10. The exhaust apparatus as claimed in claim 1, wherein the number of the rollers is at least two.

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