CN219161689U - Safe and reliable's sampling tube sampling mechanism - Google Patents

Abstract

A safe and reliable sampling tube sampling mechanism comprises a mounting seat, a loading table, a lifting assembly, a position detection sensing device and a control unit, wherein the loading table is rotationally connected to one side of the mounting seat, a plurality of loading grooves for accommodating test tubes are formed in the loading table, and the loading grooves are distributed along the circumferential direction of the loading table and extend towards the axial direction perpendicular to the loading table; the position detection sensing device is positioned below the loading table, the loading table is connected with the driving end of the lifting assembly through the mounting seat, and the test tube is displaced in the vertical direction in the photosensitive area of the position detection sensing device under the driving action of the lifting assembly so as to detect the position of the test tube; the control unit further determines whether the next working is normally performed according to the position signal sent by the position detection sensing device. The application can fully shake the blood mixed solution in the test tube, and can rotate according to the test tube position automatic control to start and stop, has operation safe and reliable, efficient, practicality advantage such as strong.

Description

Safe and reliable's sampling tube sampling mechanism

Technical Field

The application relates to the technical field of medical equipment, in particular to a safe and reliable sampling tube sampling mechanism.

Background

The world health organization and the international red cross and red crescent movement have called for the principle of 'medical blood adopts gratuitous blood donation' all over the world, and when a donor donates blood, medical staff can synchronously leave the blood sample for blood test on the donor, and the sample is used for detecting whether the blood of the current blood donation can be used or not.

In recent years, along with development and progress of technology, an automatic intelligent blood sampling platform is provided by a company, and the existing intelligent blood sampling platform is provided with a sampling tube sampling mechanism, so that a shaking test tube can be rotated after blood sample is reserved, and blood in the test tube and anticoagulant or detection reagent in the test tube are uniformly mixed. However, the existing sampling tube sampling mechanism has small rotation amplitude, can not uniformly mix the blood in the test tube with the anticoagulant or the detection reagent in the test tube, and is easy to generate blood coagulation; if the rotation amplitude is increased, the phenomenon that the test tube is thrown out of the sampling tube sampling mechanism can occur, and once equipment is knocked over, or blood is omitted, the great potential safety hazard can be brought.

Therefore, a sample sampling mechanism which can sufficiently shake up mixed liquid in a test tube, can detect the position of the test tube in the rotation process and automatically control the start and stop of the sample tube is needed, and the test tube is prevented from being thrown out in the rotation process.

Disclosure of Invention

An object of the application is to provide a safe and reliable's sampling tube sampling mechanism to it is little to solve current sampling tube sampling mechanism and exist the rotation range, can't fully shake the blood mixed solution of even in the test tube, and can't open the problem that stops according to test tube position automatic control.

The embodiment of the application can be realized through the following technical scheme:

a safe and reliable sampling tube sampling mechanism, which comprises a mounting seat, a loading table, a lifting assembly, a position detection sensing device and a control unit,

the loading platform is rotatably connected to one side of the mounting seat, a plurality of loading grooves for accommodating test tubes are formed in the loading platform, the loading grooves are distributed along the circumferential direction of the loading platform respectively and extend towards the axial direction perpendicular to the loading platform, and the test tubes are driven to turn up and down in a rotating mode;

the position detection sensing device is positioned below the loading table, the loading table is connected with the driving end of the lifting assembly through the mounting seat, and under the driving action of the lifting assembly, a vertically downward test tube in the loading table is displaced in the vertical direction in a photosensitive area of the position detection sensing device so as to detect the position of the test tube;

and the control unit sends a control instruction to the driving end of the mounting seat according to the position signal sent by the position detection sensing device so as to control the rotation start and stop of the loading table.

Further, a first rotary driving piece is arranged on the mounting seat and is transversely arranged, the driving end of the first rotary driving piece is connected with the loading table, and the loading groove extends along the axial direction perpendicular to the first rotary driving piece.

Further, the loading platform further comprises a plurality of transmission holes, the number of the transmission holes corresponds to the number of the loading grooves, and the plurality of transmission holes are arranged along the axial direction of the loading platform and penetrate through holes in the lower parts of the loading grooves.

Further, the position detection sensing device comprises a sensor fixing frame, photoelectric sensors are respectively arranged at two ends of the sensor fixing frame, and the loading table is displaced in the vertical direction in the photosensitive areas at two ends of the sensor fixing frame under the driving action of the lifting assembly.

Further, the position detection sensing device comprises a first photoelectric sensor, a photosensitive part and a light projecting part of the first photoelectric sensor are respectively positioned at two sides of the top end of the sensor fixing frame, and sensing light of the first photoelectric sensor and the axial direction of the loading table are arranged in the same direction.

Further, when the loading table is located at an initial position in the vertical direction, the sensing light of the first photoelectric sensor and the transmission hole are located in the same horizontal line.

Further, the position detection sensing device further comprises a second photoelectric sensor, the photosensitive part and the light projecting part of the second photoelectric sensor are respectively positioned at two sides of the bottom end of the sensor fixing frame, and sensing light of the second photoelectric sensor and the axial direction of the loading table are arranged in the same direction.

Further, when the loading table is located at the initial position in the vertical direction, the top of any one test tube assembled in place is outside the photosensitive area of the second photoelectric sensor.

Further, the inner wall of the loading groove is provided with a plurality of rubber bulges, one end of each rubber bulge is connected with the inner wall of the loading groove, and the other end extends towards the direction deviating from the inner wall of the loading groove.

Further, the displacement module of lifting assembly includes lead screw, driving motor, carriage and bearing connection seat, driving motor with screw connection, the lead screw vertical set up in the carriage, the bearing connection seat be the drive end of displacement module, bearing connection seat threaded connection in the lead screw, just one side of bearing connection seat follow vertical direction sliding connection in the carriage, opposite side fixed connection in the mount pad.

The embodiment of the application provides a safe and reliable's sampling tube sampling mechanism has following beneficial effect at least:

on the one hand, the loading table is arranged on one side of the mounting seat, the loading grooves are arranged along the axial direction perpendicular to the first rotary driving piece, the loading grooves are respectively arranged in the circumferential direction of the loading table and extend along the radial direction of the loading table, and by adopting the arrangement mode, blood in the test tube and anticoagulant or detection reagent and the like in the test tube are sufficiently and evenly shaken in an up-down overturning mode, so that the mixing effect is good, the efficiency is high and the like;

on the other hand, the position of the test tube in the loading table is detected by arranging the position detection sensing device, when the test tube is installed in place, the first photoelectric sensor sends out an installation in-place signal, and the control unit sends out a control instruction to perform the next work after receiving the signal sent by the first photoelectric sensor, so that the follow-up work can be safely and reliably operated; when the blood sampling is completed, the loading platform is shifted to the bottom initial position to rotate and shake evenly, once the test tube which is positioned vertically downwards is shielded in the photosensitive area of the second photoelectric sensor, the second photoelectric sensor sends an error signal to the control unit, and the control unit immediately sends a command for stopping rotation, so that the test tube is prevented from being thrown out in the rotation process, and the device has the advantages of safe and reliable operation, strong practicability and the like.

Drawings

FIG. 1 is a schematic diagram of a sample-sampling mechanism for a sample tube in practical application;

FIG. 2 is a schematic diagram of the overall structure of a sample-sampling mechanism with safety and reliability according to the present embodiment;

FIG. 3 is a schematic view of a rubber bump in the present embodiment;

fig. 4 is a schematic structural diagram of a lifting assembly in this embodiment.

Reference numerals in the figures

2-a sample-reserving bag bracket;

11-a mounting base; 111-a first rotary drive; 112-an encoder; 12-loading table; 121-loading slot; 122-rubber bumps; 123-a transmission hole; 13-a lifting assembly; 131-a lead screw; 132-driving a motor; 133-a support frame; 134-bearing connection seats; 14-a first photosensor; 15-a bar code identifier; 16-a sensor fixing frame; 17-a second photosensor.

Detailed Description

The present application will be further described below based on preferred embodiments with reference to the accompanying drawings.

In addition, various components on the drawings have been enlarged (thick) or reduced (thin) for ease of understanding, but this is not intended to limit the scope of the present application.

The singular forms also include the plural and vice versa.

In the description of the embodiments of the present application, it should be noted that, if the terms "upper," "lower," "inner," "outer," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or an azimuth or a positional relationship that a product of the embodiments of the present application conventionally puts in use, it is merely for convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore should not be construed as limiting the present application. Furthermore, in the description of the present application, the terms first, second, etc. are used herein for distinguishing between different elements, but not necessarily for describing a sequential or chronological order of manufacture, and may not be construed to indicate or imply a relative importance, and their names may be different in the detailed description of the present application and the claims.

The terminology used in this description is for the purpose of describing the embodiments of the present application and is not intended to be limiting of the present application. It should also be noted that unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the two components can be connected mechanically, directly or indirectly through an intermediate medium, and can be communicated internally. The specific meaning of the terms in this application will be specifically understood by those skilled in the art.

For convenience of description in this application, taking the direction shown in fig. 1 as an example, the X axis represents the transverse direction, and the Z axis represents the vertical direction.

Fig. 1 is a schematic diagram of a safe and reliable sample tube sampling mechanism in practical application, as shown in fig. 1, and is disposed below a sample tube sampling bag support 2, where the sample tube sampling mechanism includes a mounting seat 11, a loading table 12, a lifting assembly 13, a position detection sensing device and a control unit, the loading table 12 is rotatably connected to one side of the mounting seat 11, a plurality of loading slots 121 for accommodating test tubes 100 are disposed on the loading table 12, and the plurality of loading slots 121 are respectively distributed along the circumferential direction of the loading table 12 and extend towards an axial direction perpendicular to the loading table 12, so as to drive the test tubes 100 to flip up and down in a rotating manner, so as to sufficiently shake up blood mixed liquid (i.e. mixed liquid of blood and anticoagulant or detection reagent in the test tubes, etc.);

the position detection sensing device is located below the loading table 12, the loading table 12 is connected with the driving end of the lifting assembly 13 through the mounting seat 11, under the driving action of the lifting assembly 13, the vertically downward test tube 100 in the loading table 12 is displaced in the vertical direction in the photosensitive area of the position detection sensing device, so that the test tube 100 on the loading groove 121 rotating to a preset position is lifted to a specified position for blood collection, and after the blood collection is completed, the test tube 100 is displaced downward to the initial position of the bottom end, the position of the test tube 100 is detected through the position detection sensing device, and a signal is sent to the control unit;

the control unit is configured to receive the signal sent by the position detection sensor device, and send a control instruction to the driving end of the mounting seat 11 according to the received signal, so as to control the rotation start and stop of the loading table 12.

Specifically, fig. 2 is a schematic diagram of the overall structure of a sample-sampling mechanism of a safe and reliable sample-sampling mechanism provided in this embodiment, as shown in fig. 2, a first rotation driving member 111 is disposed on the mounting seat 11, the first rotation driving member 111 is disposed transversely, the driving end of the first rotation driving member 111 is connected with the loading table 12 and drives the loading table 12 to rotate, and the loading slot 121 is disposed along the direction perpendicular to the driving shaft of the first rotation driving member 111, so that the blood mixture in the test tube 100 is sufficiently and uniformly shaken in an up-down overturning manner, and is used for more sufficiently shaking the blood mixture in the test tube to avoid blood coagulation.

In some preferred embodiments, the loading platform 12 has a disc shape, and the plurality of loading slots 121 are respectively disposed in a circumferential direction of the loading platform 12 and extend perpendicularly to an axial direction of the first driving member 111, so that the test tube 100 on one of the loading slots 121 can be rotated to a predetermined position by a rotating manner.

In some preferred embodiments, the other end of the first rotation driving member 111 is connected to an encoder 112, which is used to identify the position of the first rotation driving member 111, and measure the moving direction, moving amount, and angle of the rotating or moving object, so as to control the rotation stroke of the loading platform 12 in the next step.

In some preferred embodiments, a plurality of loading slots 121 are uniformly spaced along the circumferential direction of the loading table 12, and the first rotation driving assembly 111 is used to rotate one of the loading slots 121 to a predetermined position each time the loading table 12 is driven to rotate by the same stroke, thereby increasing convenience in handling.

Wherein, the above-mentioned predetermined position means that one of the loading slots 121 is rotated to a position just below the sample-reserving bag holder 2, so that the lifting assembly 13 drives the mounting base 11 to displace in the vertical direction, and the test tube 100 at the predetermined position can be accurately lifted into the sample-reserving needle inserted into the blood-collecting bag.

The position detection sensing device comprises a sensor fixing frame 16, photoelectric sensors are respectively arranged at two ends of the sensor fixing frame 16, the loading table 12 is displaced in the vertical direction in the photosensitive areas at two ends of the sensor fixing frame 16 under the driving action of the lifting assembly 13, and when the loading table 12 is displaced to the initial position of the bottom end, the photosensitive areas at two ends of the sensor fixing frame 16 are respectively and correspondingly positioned at two ends of the vertically downward test tube 100 for detecting whether the position of the test tube 100 is deviated or not.

Specifically, the loading table 12 further includes a plurality of transmission holes 123, where the number of the transmission holes 123 corresponds to the number of the loading slots 121, and the plurality of transmission holes 123 are disposed along the axial direction of the loading table 12 and penetrate through a through hole at the lower part of the loading slot 121, and when the test tube 100 is inserted into the loading slot 121 to be in place, the test tube 100 is blocked inside the transmission holes 123;

accordingly, the position detecting and sensing device includes a first photoelectric sensor 14, the photosensitive part and the light projecting part of the first photoelectric sensor 14 are respectively located at two sides of the top end of the sensor fixing frame 16, the sensing light of the first photoelectric sensor 14 and the axial direction of the loading table 12 are arranged in the same direction, and when the mounting seat 11 is located at the bottom end initial position displaced along the vertical direction, the sensing light of the first photoelectric sensor 14 and the transmitting hole 123 are located in the same horizontal line, so that whether the sensing sensor can transmit a light sensing signal through the transmitting hole 123 is used for judging whether the test tube 100 on the loading table 12 is assembled in place.

When the test tube 100 is inserted into the loading groove 121 and is blocked inside the transmission hole 123, the first photoelectric sensor 14 sends out a mounting-in-place signal, the control unit receives the signal sent out by the first photoelectric sensor 14 and sends out a control command to perform the next operation.

In some preferred embodiments, the position detecting sensor device further includes a second photoelectric sensor 17, the photosensitive part and the light projecting part of the second photoelectric sensor 17 are respectively located at two sides of the bottom end of the sensor fixing frame 16, the sensing light of the second photoelectric sensor 17 and the axial direction of the loading table 12 are arranged in the same direction, and when the lifting assembly 13 drives the mounting seat 11 to vertically displace downwards to the initial position of the bottom end, the top of any test tube 100 assembled in place is outside the photosensitive area of the second photoelectric sensor 17, and the photosensitive part and the light projecting part of the second photoelectric sensor 17 can normally transmit signals for monitoring the position of the test tube 100 in the rotation process.

In the rotation shaking process, once the test tube 100 is centrifugally displaced in the loading groove 121, the second photoelectric sensor 17 is shielded by the test tube 100 and cannot normally transmit photoelectric signals, and at this time, the control unit sends a rotation stopping signal to the first rotation driving piece 111 after receiving the error reporting signal so as to control the loading table 12 to stop rotating, thereby avoiding the test tube 100 from being thrown out by rotation.

In some preferred embodiments, the inner wall of the loading slot 121 is provided with a plurality of rubber protrusions 122, fig. 3 is a schematic view of the rubber protrusions 122 in this embodiment, as shown in fig. 3, one end of each rubber protrusion 122 is connected to the inner wall of the loading slot 121, and the other end extends toward a direction away from the inner wall of the loading slot 121, so that when the loading table 12 drives the test tube 100 to flip up and down, the test tube 100 is firmly clamped in the loading slot 121 by the rubber protrusions 122, so as to prevent the loading table 12 from throwing the test tube 100 out of the loading slot 121 during rotation.

In some preferred embodiments, the rubber protrusions 122 are in a sheet shape, and a plurality of the rubber protrusions 122 are uniformly arranged in the loading groove 121 in a layered shape, so that when the test tube 100 is inserted into the loading groove 121, the rubber protrusions 122 at different layers are turned down for better clamping the test tube 100, so as to prevent the test tube 100 from being thrown out of the loading groove 121 during the rotation of the loading table 12.

In some preferred embodiments, the driving shaft of the first rotation driving member 111 is disposed transversely, so that the loading platform 12 is disposed on one side of the mounting seat 11, so as to optimize the space layout, reduce the volume of the machine, and realize the practical scenario on the vehicle.

Fig. 4 is a schematic structural diagram of the lifting assembly 13 in this embodiment, as shown in fig. 4, the lifting assembly 13 includes a screw rod 131, a driving motor 132, a supporting frame 133 and a bearing connection seat 134, the driving motor 132 is connected with the screw rod 131, the screw rod 131 is vertically disposed in the supporting frame 133, the bearing connection seat 134 is in threaded connection with the screw rod 131, one side of the bearing connection seat 134 is slidably connected in the supporting frame 133 in the vertical direction, the other side is fixedly connected with the mounting seat 11, and under the driving action of the driving motor 132, the screw rod 131 rotates in the supporting frame 133 and drives the bearing connection seat 134 to displace in the vertical direction, so as to drive the mounting seat 11 to displace in the vertical direction.

In some preferred embodiments, the sample sampling mechanism further includes a barcode identifier 15, as shown in fig. 2, where the barcode identifier 15 is disposed at a lower portion of a side of the lifting assembly 13 and faces the test tube 100 exposed outside the loading slot 121, and is used for identifying barcode information attached to the test tube 100, so as to facilitate intelligent identification of identity information and detection information attached to the test tube 100, which correspond to a person to be sampled, and avoid causing non-correspondence between blood and a provider of a part of the test tube.

The following combines the drawing to describe in detail the concrete working process of the sampling tube sampling mechanism that uses on this application intelligence blood sampling platform:

a plurality of test tubes 100 are respectively inserted into the loading groove 121 to be installed in place, when the test tubes 100 are inserted into the loading groove 121 and are shielded in the transmission hole 123, the first photoelectric sensor 14 sends out an installation in place signal, and the control unit receives the signal sent out by the first photoelectric sensor 14 and sends out a control instruction to carry out the next work.

When sampling is started, the driving motor 132 drives the screw rod 131 to rotate, the bearing connecting seat 134 is driven to move upwards along the vertical direction, correspondingly, the mounting seat 11 connected to one side of the bearing connecting seat 134 also drives the loading table 12 to move upwards to the top, and at the moment, a sample retaining needle is inserted into the test tube 100 positioned in the vertical upward direction and sampling is performed.

After the sampling is finished, the driving motor 132 drives the screw rod 131 to reversely rotate, drives the bearing connecting seat 134 to downwards displace along the vertical direction, correspondingly, the mounting seat 11 connected to one side of the bearing connecting seat 134 also drives the loading table 12 to downwards displace, when the test tube 100 is separated from the sample reserving needle, the first driving piece 111 drives the loading table 12 to rotate for a certain stroke, so that the test tube 100 on the loading groove 121 of the other one rotates to a preset position, the test tube 100 which completes the sampling downwards rotates, and the test tubes circulate in sequence until all the test tubes complete the sampling.

In this process, when the test tube 100 is installed in place, the first photoelectric sensor 14 cannot transmit the photoelectric signal through the transmission hole 123, the second photoelectric sensor 17 normally transmits the photoelectric signal, and if the second photoelectric sensor 17 is shielded by the test tube 100 and cannot transmit the photoelectric signal in the rotation process, the control unit sends a rotation stopping signal to the first rotation driving member 111 to control the loading table 12 to stop rotating, so that the test tube 100 is prevented from being rotated and thrown out, and the safe operation of the whole equipment is ensured.

While the foregoing is directed to embodiments of the present application, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims (10)

1. A safe and reliable's sampling tube sampling mechanism, characterized in that includes:

a mounting seat (11), a loading table (12), a lifting assembly (13), a position detection sensing device and a control unit,

the loading table (12) is rotatably connected to one side of the mounting seat (11), a plurality of loading grooves (121) for accommodating test tubes (100) are formed in the loading table (12), the loading grooves (121) are respectively distributed along the circumferential direction of the loading table (12) and extend towards the axial direction perpendicular to the loading table (12) so as to drive the test tubes (100) to turn up and down in a rotating manner;

the position detection sensing device is positioned below the loading table (12), the loading table (12) is connected with the driving end of the lifting assembly (13) through the mounting seat (11), and under the driving action of the lifting assembly (13), a test tube (100) which is vertically downward in the loading table (12) is displaced in the vertical direction in a photosensitive area of the position detection sensing device so as to detect the position of the test tube (100);

the control unit sends a control instruction to the driving end of the mounting seat (11) according to the position signal sent by the position detection sensing device so as to control the rotation start and stop of the loading table (12).

2. The sample-tube-sampling mechanism of claim 1, which is safe and reliable, and is characterized in that:

the mounting seat (11) is provided with a first rotary driving piece (111), the first rotary driving piece (111) is transversely arranged, the driving end of the first rotary driving piece (111) is connected with the loading table (12), and the loading groove (121) extends along the axial direction perpendicular to the first rotary driving piece (111).

3. The sample-tube-sampling mechanism of claim 1, which is safe and reliable, and is characterized in that:

the loading table (12) further comprises a plurality of transmission holes (123), the number of the transmission holes (123) corresponds to the number of the loading grooves (121), and the plurality of transmission holes (123) are axially arranged along the loading table (12) and penetrate through holes in the lower portion of the loading grooves (121).

4. A secure and reliable coupon sampling mechanism according to claim 3, wherein:

the position detection sensing device comprises a sensor fixing frame (16), photoelectric sensors are respectively arranged at two ends of the sensor fixing frame (16), and the loading table (12) is displaced in the vertical direction in the photosensitive areas at two ends of the sensor fixing frame (16) under the driving action of the lifting assembly (13).

5. The sample-sampling mechanism of claim 4, wherein:

the position detection sensing device comprises a first photoelectric sensor (14), wherein a photosensitive part and a light projecting part of the first photoelectric sensor (14) are respectively positioned on two sides of the top end of the sensor fixing frame (16), and sensing light of the first photoelectric sensor (14) and the axial direction of the loading table (12) are arranged in the same direction.

6. The sample-sampling mechanism of claim 5, wherein:

when the loading table (12) is positioned at the initial position in the vertical direction, the sensing light of the first photoelectric sensor (14) and the transmission hole (123) are positioned in the same horizontal line.

7. The sample-sampling mechanism of claim 4, wherein:

the position detection sensing device further comprises a second photoelectric sensor (17), a photosensitive part and a light projecting part of the second photoelectric sensor (17) are respectively positioned at two sides of the bottom end of the sensor fixing frame (16), and sensing light of the second photoelectric sensor (17) and the axial direction of the loading table (12) are arranged in the same direction.

8. The sample-tube-sampling mechanism of claim 7, wherein:

when the loading table (12) is positioned at the initial position in the vertical direction, the top of any test tube (100) assembled in place is outside the photosensitive area of the second photoelectric sensor (17).

9. The sample-tube-sampling mechanism of claim 1, which is safe and reliable, and is characterized in that:

the inner wall of the loading groove (121) is provided with a plurality of rubber bulges (122), one end of each rubber bulge (122) is connected with the inner wall of the loading groove (121), and the other end extends towards the direction deviating from the inner wall of the loading groove (121).

10. The sample-tube-sampling mechanism of claim 1, which is safe and reliable, and is characterized in that:

the displacement module of lifting assembly (13) includes lead screw (131), driving motor (132), carriage (133) and bearing connection seat (134), driving motor (132) with lead screw (131) are connected, lead screw (131) vertical set up in carriage (133), bearing connection seat (134) do the drive end of displacement module, bearing connection seat (134) threaded connection in lead screw (131), just one side of bearing connection seat (134) follow vertical direction sliding connection in carriage (133), opposite side fixed connection in mount pad (11).

Images