CN216646040U - Peripheral blood mixing mechanism - Google Patents
Peripheral blood mixing mechanism Download PDFInfo
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- CN216646040U CN216646040U CN202123236815.4U CN202123236815U CN216646040U CN 216646040 U CN216646040 U CN 216646040U CN 202123236815 U CN202123236815 U CN 202123236815U CN 216646040 U CN216646040 U CN 216646040U
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- peripheral blood
- blending
- limiting
- mounting groove
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Abstract
The utility model relates to the field of blood sample analysis, and aims to provide a peripheral blood blending mechanism which comprises a positioning seat, a blending assembly, a limiting assembly and a driving assembly; the blending assembly comprises a blending base and an adaptive pad, wherein the top of the blending base is downwards provided with a mounting groove for accommodating the bottom of a sample container, the opening of the mounting groove extends from top to bottom in the direction far away from the center shaft of the blending base, the adaptive pad is arranged at the bottom of the mounting groove, the top of the adaptive pad is matched with the sample container and is provided with an accommodating groove, and the adaptive pad is made of flexible materials; the driving assembly comprises a rotary driving mechanism, the fixed end of the rotary driving mechanism is connected with the positioning seat, and the output end of the rotary driving mechanism is arranged upwards and is connected with the blending base; and the limiting component is used for limiting the middle part of the sample container. The utility model can automatically mix a small amount of blood samples, has good mixing effect, has small workload of users, and can reduce the hanging liquid residual quantity of the samples on the inner wall of the sample container.
Description
Technical Field
The utility model relates to the field of blood sample analysis, in particular to a peripheral blood mixing mechanism.
Background
Blood sample measurement needs to collect a certain amount of samples from patients, the blood collection mode is generally divided into venous blood collection and peripheral blood collection, and peripheral blood is often collected for patients who are not suitable for venous blood collection, such as neonates, infants, intensive care patients and the like. When peripheral blood still appears layering after being placed for a period of time, if direct sampling is carried out, the sampling needle mainly takes lower-layer blood, the result concentration is directly higher, and therefore blood samples collected after layering cannot be directly used for testing.
Currently, a vortex oscillator is generally used in the market, or a finger flick mode is used for uniformly mixing a peripheral blood sample in a sample container, and then the peripheral blood sample is put into an analyzer for subsequent testing. However, this blending method greatly limits the number of one-time batch measurements of peripheral blood on one hand, and increases the burden of manual operation on the other hand.
Therefore, it is necessary to develop a peripheral blood mixing mechanism that facilitates sufficient mixing of peripheral blood and reduces the workload of the user.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems at least to a certain extent, the utility model provides a peripheral blood mixing mechanism.
The technical scheme adopted by the utility model is as follows:
a peripheral blood blending mechanism is used for blending samples in a sample container, and comprises a positioning seat, a blending assembly, a limiting assembly and a driving assembly; wherein the content of the first and second substances,
the blending assembly comprises a blending base and an adaptive pad; the top of the blending base is downwards provided with an installation groove for accommodating the bottom of the sample container, and the opening of the installation groove extends from top to bottom in the direction far away from the central axis of the blending base; the adaptive pad is arranged at the bottom of the mounting groove, the top of the adaptive pad is matched with the sample container to form a containing groove, and the adaptive pad is made of flexible materials;
the driving assembly comprises a rotary driving mechanism, the fixed end of the rotary driving mechanism is connected with the positioning seat, and the output end of the rotary driving mechanism is arranged upwards and is connected with the blending base;
the limiting assembly is used for limiting the middle part of the sample container.
In a possible design, the mounting groove is arranged to be eccentric round table-shaped, and the inner diameter of the mounting groove is gradually reduced from top to bottom.
In one possible design, the bottom of the adapter pad is provided with a convex block, and the bottom of the mounting groove is provided with a bayonet matched with the convex block.
In a possible design, the limiting assembly comprises a mounting frame connected with the positioning seat and a limiting sleeve arranged on the mounting frame, the mounting frame is matched with the limiting sleeve to be provided with a through hole, the inner diameter of the limiting sleeve is gradually reduced from the upper part to the middle part, and the inner diameter of the limiting sleeve is gradually increased from the middle part to the lower part.
In one possible design, the limiting assembly further comprises a guide sleeve, the guide sleeve is arranged below the limiting sleeve, and the limiting sleeve and the guide sleeve are respectively located on two sides of the mounting frame.
In a possible design, the mounting bracket is set to be L-shaped, one arm of the mounting bracket extends along the vertical direction and is connected with the positioning seat, and the other arm of the mounting bracket is arranged along the horizontal direction and is respectively connected with the limiting sleeve and the guide sleeve.
In one possible design, an arm of the mounting frame connected with the limiting sleeve is connected with an in-place detection device through a mounting plate, and the in-place detection device is used for detecting whether the sample container is in place or not.
In a possible design, the peripheral blood mixing mechanism further comprises a groove-shaped optical coupler and a photoelectric separation blade matched with the groove-shaped optical coupler, and the photoelectric separation blade is connected with the mixing base.
The beneficial effects of the utility model are concentrated and expressed as follows:
1) can carry out automatic mixing to a small amount of blood sample, the mixing effect is good, and user's work load is little simultaneously. In the implementation process, the rotary driving mechanism can drive the bottom of the sample container to perform periodic eccentric rotary motion around the middle of the sample container, so that samples in the sample container can be fully mixed, the problem that the samples cannot be mixed uniformly at the middle shaft of the sample container during circular motion of the sample container is avoided, and the mixing effect is good; moreover, the rotary driving mechanism is matched with the blending assembly and the limiting assembly to realize mechanical operation of blending the sample in the sample container, so that the workload of a user is reduced, and the rotary blending device has popularization and application values;
2) due to the arrangement of the adaptive pad, a sample to be mixed can perform eccentric rotation motion around the central axis of the mixing base, and can perform circular motion around the central axis of the sample container, so that the sample can be prevented from climbing up along the inside of the sample container, the liquid hanging residual quantity of the sample on the inner wall of the sample container can be reduced, and the effect of reducing sample loss can be achieved.
Drawings
FIG. 1 is a schematic structural view of a peripheral blood mixing mechanism according to the present invention;
FIG. 2 is an exploded view of a portion of the structure shown in FIG. 1;
FIG. 3 is a schematic view of the mixing base of the present invention;
FIG. 4 is a schematic diagram of the construction of the adapter pad of the present invention;
FIG. 5 is a schematic diagram of the structure of FIG. 4 from another perspective;
FIG. 6 is a schematic structural view showing one operation cycle of the peripheral blood mixing mechanism of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
In the description of the embodiments of the present invention, the terms "disposed," "mounted," and "connected" should be understood broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
The utility model is further described with reference to the following figures and specific embodiments.
Example 1:
the embodiment provides a peripheral blood blending mechanism, which is used for blending a sample in a sample container 1, and as shown in fig. 1 to 2, the peripheral blood blending mechanism comprises a positioning seat 2, a blending assembly, a limiting assembly and a driving assembly; wherein the content of the first and second substances,
the blending assembly comprises a blending base 3 and an adaptive pad 6; the top of the blending base 3 is downwards provided with an installation groove 4 for accommodating the bottom of the sample container 1, and the opening of the installation groove 4 extends from top to bottom in the direction far away from the central axis of the blending base 3; the adaptive pad 6 is arranged at the bottom of the mounting groove 4, the top of the adaptive pad 6 is matched with the sample container 1 to be provided with a holding groove 7, and the adaptive pad 6 is made of flexible materials;
the driving assembly comprises a rotary driving mechanism 5, the fixed end of the rotary driving mechanism 5 is connected with the positioning seat 2, and the output end of the rotary driving mechanism 5 is arranged upwards and is connected with the blending base 3;
the limiting assembly is used for limiting the middle part of the sample container 1. It should be noted that, the limiting component can be independently arranged on one side of the positioning seat 2, and can also be connected with the positioning seat 2, as long as it can limit the middle part of the sample container 1.
It should be understood that, in the present embodiment, the rotation driving mechanism 5 may be, but is not limited to, a structure that can realize rotation driving using a rotating motor, a rotating cylinder, or the like.
The embodiment can automatically mix a small amount of blood samples, the mixing effect is good, and the workload of a user is small. Specifically, in the implementation process of the embodiment, the rotation driving mechanism 5 can drive the bottom of the sample container 1 to perform periodic eccentric rotation around the middle of the sample container 1, so that the samples in the sample container 1 can be conveniently and fully mixed, the problem that the samples at the middle shaft of the sample container 1 cannot be mixed when the sample container 1 performs circular motion is avoided, and the mixing effect is good; moreover, because the rotary driving mechanism 5 is matched with the blending component and the limiting component, the mechanical operation of blending the samples in the sample container 1 is realized, so that the workload of a user is reduced, and the device has popularization and application values.
In this embodiment, as shown in fig. 3, the mounting groove 4 is formed in an eccentric circular truncated cone shape, and the inner diameter of the mounting groove 4 is gradually reduced from top to bottom. It will be appreciated that the inner diameter of the bottom of the mounting groove 4 matches the outer diameter of the bottom of the sample container 1.
It should be noted that, the mounting groove 4 may also be set to be an oblique cylinder, in this embodiment, the mounting groove 4 is set to be an eccentric circular truncated cone, which can realize the guiding function for the sample container 1, so that the lower portion of the sample container 1 can enter the bottom of the mounting groove 4 from the top of the mounting groove 4, and meanwhile, the bottom of the sample container 1 can be positioned, thereby avoiding the problem that the bottom of the sample container 1 rocks in the mounting groove 4.
In the prior art, the peripheral blood sample in the blood collection tube is also mixed by adopting an inverse mixing mode, but because the blood collection quantity of the peripheral blood is usually less (less than or equal to 300uL) and the fluidity is poor, the peripheral blood is wasted by adopting the inverse mixing mode, and the technical problem can be solved by adopting the adaptive pad 6.
Note that, in the structure shown in fig. 2, an arrow indicates the mounting position of the adapter pad 6.
In this embodiment, adaptation pad 6 uses with the cooperation of sample container 1, adaptation pad 6 can but not only be limited to adopt flexible rubber pad, foam-rubber cushion etc. its coefficient of friction is great for increase the frictional force between the bottom of sample container 1 and mounting groove 4, can make 5 operations of rotary drive mechanism, mixing base 3 rotate, when driving 1 eccentric rotatory swings of sample container, still can make sample container 1 can the rotation, thereby strengthen the mixing effect of the interior sample of sample container 1.
It should be noted that, in this embodiment, the sample to be mixed can perform eccentric rotation motion around the central axis of the mixing base 3, and also perform circular motion around the central axis of the sample container 1, so that the sample can be prevented from climbing up along the inside of the sample container 1, and further, the amount of residual liquid hanging on the inner wall of the sample container 1 by the sample can be reduced, thereby reducing the sample loss.
In this embodiment, as shown in fig. 4 to 5, a protrusion 8 is disposed at the bottom of the adapter pad 6, and a bayonet is disposed at the groove bottom of the mounting groove 4 and the protrusion 8.
It should be noted that, when the adapting pad 6 is installed in the installation groove 4, the convex block 8 at the bottom of the adapting pad 6 can be clamped into the notch at the bottom of the groove, so that the adapting pad 6 is fixed in the installation groove 4, and the adapting pad 6 is prevented from sliding in the installation groove 4, thereby increasing the stability of the adapting pad 6.
In this embodiment, spacing subassembly includes mounting bracket 9 and the stop collar 10 of setting on mounting bracket 9 that is connected with positioning seat 2, the through-hole has been seted up to cooperation stop collar 10 on the mounting bracket 9, the internal diameter of stop collar 10 reduces by upper portion to middle part gradually, and the internal diameter of stop collar 10 increases by middle part to lower part gradually.
It should be noted that the limiting sleeve 10 is used for limiting the middle of the sample container 1, and the minimum inner diameter position in the middle of the limiting sleeve 10 is used as a pivot of the swing of the sample container 1, so as to achieve the effect that the sample container 1 swings around the limiting sleeve 10.
In this embodiment, the limiting assembly further comprises a guide sleeve 11, the guide sleeve 11 is arranged below the limiting sleeve 10, and the limiting sleeve 10 and the guide sleeve 11 are respectively located on two sides of the mounting frame 9. It should be understood that the guide sleeve 11 is provided with a guide hole along the vertical direction, and the inner diameter of the guide hole is larger than the outer diameter of the sample container 1, so that the lower part of the sample container 1 is limited in the guide sleeve 11 and prevented from moving along the transverse direction.
In this embodiment, the mounting bracket 9 is set to be L-shaped, one arm of the mounting bracket 9 extends along the vertical direction and is connected with the positioning seat 2, and the other arm of the mounting bracket 9 extends along the horizontal direction and is connected with the stop collar 10 and the guide sleeve 11 respectively. It will be appreciated that the stop collar 10 and the guide collar 11 are located on either side of the other arm of the mounting bracket 9.
Specifically, an arm of the mounting frame 9 connected with the stop collar 10 is connected with an in-place detection device 13 through a mounting plate 12, and the in-place detection device 13 is used for detecting whether the sample container 1 is in place or not.
In this embodiment, the in-place detection device 13 may be, but not limited to, a reflective photoelectric sensor, and it should be understood that, when the in-place detection device 13 is a reflective photoelectric sensor, the photoelectric output end and the detection end of the in-place detection device 13 are both disposed toward the direction when the sample container 1 is in place.
In this embodiment, tip blood mixing mechanism still includes cell type opto-coupler 14 and the photoelectricity separation blade 15 that sets up with cell type opto-coupler 14 cooperation, photoelectricity separation blade 15 is connected with mixing base 3.
It should be noted that the peripheral blood mixing mechanism further includes a control component, and the control component is used for controlling the operation state of the rotation driving mechanism 5, and is also used for receiving the photoelectric signals output by the groove-shaped optical coupler 14 and the in-place detection device 13, and driving the rotation driving mechanism 5 to operate or stop according to the photoelectric signals.
Specifically, the slot type optical coupler 14 is formed by combining an infrared transmitting tube and an infrared receiving tube, and when the photoelectric barrier 15 moves into the slot type optical coupler 14, the infrared receiving tube does not receive the infrared rays transmitted by the infrared transmitting tube, so that the infrared receiving tube outputs a power-off signal to the control assembly. In this embodiment, after the blending operation of sample in the completion sample container 1, control subassembly obtains the outage signal when photoelectric barrier piece 15 rotates to in the cell type opto-coupler 14, then control subassembly can send stop command to rotary driving mechanism 5 according to the outage signal to make rotary driving mechanism 5 stop, so that be located the assigned position when stopping of sample container 1, so that the user can both follow the same position at every turn and put into in the blending base 3 in the blending subassembly with sample container 1.
Fig. 6 shows a schematic structural diagram of the peripheral blood mixing mechanism operating for one cycle, in which an arrow above the sample container 1 indicates the operating direction of the sample container 1, and in fig. 6, the structural diagram is shown when the rotation driving mechanism 5 drives the mixing base 3 to rotate 90 degrees from left to right in sequence, that is, the positions of the sample container 1 when rotating to different positions are indicated.
Finally, it should be noted that the above-mentioned embodiments should not be construed as limiting the scope of the utility model, which is defined in the claims, which are intended to be interpreted only in accordance with the purpose of the specification.
Claims (8)
1. A peripheral blood mixing mechanism for mixing a sample in a sample container (1), characterized in that: the peripheral blood blending mechanism comprises a positioning seat (2), a blending component, a limiting component and a driving component; wherein the content of the first and second substances,
the blending component comprises a blending base (3) and an adaptive pad (6); the top of the blending base (3) is downwards provided with a mounting groove (4) for accommodating the bottom of the sample container (1), and the opening of the mounting groove (4) extends from top to bottom towards the direction far away from the central axis of the blending base (3); the adaptive pad (6) is arranged at the bottom of the mounting groove (4), the top of the adaptive pad (6) is matched with the sample container (1) to be provided with a containing groove (7), and the adaptive pad (6) is made of flexible materials;
the driving assembly comprises a rotary driving mechanism (5), the fixed end of the rotary driving mechanism (5) is connected with the positioning seat (2), and the output end of the rotary driving mechanism (5) is arranged upwards and is connected with the blending base (3);
the limiting assembly is used for limiting the middle part of the sample container (1).
2. The peripheral blood mixing mechanism of claim 1, wherein: the mounting groove (4) is arranged to be in an eccentric round table shape, and the inner diameter of the mounting groove (4) is gradually reduced from top to bottom.
3. The peripheral blood mixing mechanism of claim 1, wherein: the bottom of adaptation pad (6) is provided with lug (8), the tank bottom cooperation lug (8) of mounting groove (4) are provided with the bayonet socket.
4. The peripheral blood mixing mechanism of claim 1, wherein: spacing subassembly includes mounting bracket (9) and stop collar (10) of setting on mounting bracket (9) be connected with positioning seat (2), the through-hole has been seted up in cooperation stop collar (10) on mounting bracket (9), the internal diameter of stop collar (10) is reduced gradually by upper portion to middle part, and the internal diameter of stop collar (10) is crescent by middle part to lower part.
5. The peripheral blood mixing mechanism of claim 4, wherein: the limiting assembly further comprises a guide sleeve (11), the guide sleeve (11) is arranged below the limiting sleeve (10), and the limiting sleeve (10) and the guide sleeve (11) are respectively located on two sides of the mounting frame (9).
6. The peripheral blood mixing mechanism of claim 5, wherein: the mounting bracket (9) is arranged in an L shape, one arm of the mounting bracket (9) extends along the vertical direction and is connected with the positioning seat (2), and the other arm of the mounting bracket (9) is arranged along the horizontal direction and is respectively connected with the limiting sleeve (10) and the guide sleeve (11).
7. The peripheral blood mixing mechanism of claim 6, wherein: an arm that mounting bracket (9) and stop collar (10) are connected is connected with detection device (13) that targets in place through mounting panel (12), whether detection device (13) that targets in place is used for detecting sample container (1) to target in place.
8. The peripheral blood mixing mechanism of claim 1, wherein: the peripheral blood mixing mechanism further comprises a groove-shaped optical coupler (14) and a photoelectric blocking piece (15) matched with the groove-shaped optical coupler (14), and the photoelectric blocking piece (15) is connected with the mixing base (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123236815.4U CN216646040U (en) | 2021-12-21 | 2021-12-21 | Peripheral blood mixing mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123236815.4U CN216646040U (en) | 2021-12-21 | 2021-12-21 | Peripheral blood mixing mechanism |
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| CN216646040U true CN216646040U (en) | 2022-05-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115178156A (en) * | 2022-07-06 | 2022-10-14 | 深圳市慧流体生物科技有限公司 | Blending device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115178156A (en) * | 2022-07-06 | 2022-10-14 | 深圳市慧流体生物科技有限公司 | Blending device |
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