Peripheral blood blending mechanism and blood cell detector

Abstract

The embodiment of the utility model discloses a peripheral blood blending mechanism and a blood cell detector, the peripheral blood blending mechanism comprises a fixing frame, a driving assembly and a sample frame assembly, the sample frame assembly comprises a frame body and a carrier in sliding connection with the frame body, the carrier is used for bearing a sample tube, and the driving assembly is used for driving the carrier to move along a first direction relative to the frame body; the driving assembly can also drive the frame body to drive the carrier to move in the second direction, so that the carrier can uniformly mix the sample tubes, and the first direction and the second direction are arranged at an included angle, so that the sample tubes can be uniformly mixed in the first direction and the second direction respectively; compared with the linear reciprocating motion in one direction in the prior art, the peripheral blood mixing device can respectively perform linear reciprocating motion in two directions, so that the phenomenon of non-uniform mixing of peripheral blood is reduced, and the test effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical laboratory detection, in particular to a peripheral blood mixing mechanism and a blood cell detector. Background Art

[0002] Mixing mechanisms are widely used in medical laboratory blood cell testing instruments, and their main purpose is to mix sample tubes. Peripheral blood generally refers to earlobe blood or fingertip blood, which is mainly suitable for children. Usually, the peripheral blood collected needs to be tested after stratification occurs. If no stratification occurs, direct testing will produce adverse effects. However, in traditional peripheral blood mixing mechanisms, left and right mixing mechanisms are used, and peripheral blood will be unevenly mixed, resulting in poor test results. Utility Model Content

[0003] Based on this, it is necessary to provide a peripheral blood mixing mechanism and a blood cell detector, aiming to solve the technical problem that the traditional peripheral blood mixing mechanism uses left and right mixing mechanisms, the peripheral blood will be unevenly mixed, thus leading to poor test results.

[0004] In a first aspect, the utility model provides a peripheral blood mixing mechanism, the peripheral blood mixing mechanism comprising:

[0005] Fixed frame;

[0006] A sample rack assembly, the sample rack assembly comprising a rack body and a carrier slidably connected to the rack body, the carrier being used to carry a sample tube; and

[0007] A drive assembly is used to drive the carrier to move relative to the frame along a first direction. The drive assembly can also drive the frame to drive the carrier to move along a second direction so that the carrier can mix the sample tube, and the first direction and the second direction are set at an angle.

[0008] In one embodiment, the driving assembly includes a driving motor and a driving shaft connected to the driving motor, the driving motor is installed on the fixed frame, and the driving shaft is provided with a first cam and a second cam, the first cam is used to drive the carrier to move along the first direction, and the second cam is used to drive the frame to drive the carrier to move along the second direction.

[0009] In one embodiment, the sample rack assembly further includes a first guide member and a first elastic member, the rack body includes a first rack and a second rack, the first guide member connects the first rack and the second rack, the first guide member passes through the carrier and is used to guide the carrier to move along the first direction;

[0010] The first elastic member is sleeved on the first guide member and elastically abuts between the carrier and the second frame.

[0011] In one embodiment, the carrier is provided with a sliding bearing, and the sliding bearing is slidably connected to the first guide member.

[0012] In one embodiment, the sample rack assembly further includes a second guide member and a second elastic member, wherein the second guide member is mounted on the fixed rack and is used to guide the rack to move along the second direction;

[0013] The second elastic member is elastically connected between the fixing frame and the frame body.

[0014] In one embodiment, the sample rack assembly further includes a guide plate, wherein the guide plate is connected to the carrier, and the first cam drives the guide plate to move the carrier along a first direction.

[0015] In one embodiment, the sample rack assembly further includes a mounting plate and a rolling wheel, wherein the mounting plate is mounted on the rack body, and the rolling wheel is rotatably connected to the mounting plate, and the second cam drives the rolling wheel to drive the mounting plate to move along the second direction, and the mounting plate drives the rack body and the carrier to move along the second direction.

[0016] In one of the embodiments, the first cam includes a first extreme position and a second extreme position, and the second cam includes a third extreme position and a fourth extreme position. In the first extreme position, the carrier moves along the first direction, and the carrier and the frame squeeze the first elastic member. In the second extreme position, the carrier is reset under the push of the elastic deformation force of the first elastic member. In the third extreme position, the frame drives the carrier to move along the second direction, and the frame and the fixing frame squeeze the second elastic member. In the fourth extreme position, the frame is reset under the push of the elastic deformation force of the second elastic member.

[0017] In one embodiment, the peripheral blood mixing mechanism further includes a sensor, which is mounted on the fixing frame and is used to sense the position of the frame.

[0018] In a second aspect, the utility model further provides a blood cell detector, which includes the peripheral blood mixing mechanism of any of the above embodiments.

[0019] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0020] The peripheral blood mixing mechanism and blood cell detector of the utility model are adopted. The carrier of the peripheral blood mixing mechanism is used to carry the sample tube. The driving component is used to drive the carrier to move relative to the frame along the first direction, so that the carrier can shake the sample tube. The driving component can also drive the frame to drive the carrier to move along the second direction, so that the carrier can mix the sample tube, so that the sample tube can be mixed in the first direction and the second direction respectively. Compared with the linear reciprocating movement in one direction in the prior art, the utility model can move linearly reciprocatingly in two directions respectively, thereby reducing the occurrence of uneven mixing of the peripheral blood and improving the test effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] in:

[0023] Figure 1 Schematic diagram of the axonometric view of the peripheral blood mixing mechanism in one embodiment.

[0024] Figure 2 for Figure 1 Schematic diagram of the explosion of the peripheral blood mixing mechanism shown.

[0025] Figure 3 for Figure 2 A schematic diagram of the first protrusion and the second protrusion in the peripheral blood mixing mechanism is shown.

[0026] Figure 4 for Figure 1 Schematic diagram of another state of the peripheral blood mixing mechanism shown.

[0027] Reference numerals:

[0028] 1. Fixed frame;

[0029] 2. Sample rack assembly; 21. Rack body; 211. First rack; 212. Second rack; 22. Carrier; 221. Sliding bearing; 23. First guide member; 24. First elastic member; 25. Second guide member; 26. Second elastic member; 27. Guide plate; 28. Mounting plate; 29. ​​Rolling wheel;

[0030] 3. Driving assembly; 31. Driving motor; 32. Driving shaft; 321. First cam; 3211. First limit position; 3212. Second limit position; 322. Second cam; 3221. Third limit position; 3222. Fourth limit position;

[0031] 4. Induction parts. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the 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. Therefore, it cannot be understood as a limitation on the present utility model.

[0035] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0036] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0037] Please combine Figures 1 to 4 The peripheral blood mixing mechanism provided by the utility model is now described, and the peripheral blood mixing mechanism is used in a blood cell detector. The peripheral blood mixing mechanism includes a fixed frame 1, a driving component 3 and a sample rack component 2. The sample rack component 2 includes a frame 21 and a carrier 22 slidably connected to the frame 21. The carrier 22 is used to carry a sample tube. The driving component 3 is used to drive the carrier 22 to move relative to the frame 21 along a first direction. The driving component 3 can also drive the frame 21 to drive the carrier 22 to move along a second direction, so that the carrier 22 can mix the sample tube. The first direction and the second direction are set at an angle.

[0038] It can be understood that the carrier 22 of the peripheral blood mixing mechanism is used to carry the sample tube, the driving component 3 is installed on the fixed frame 1, and is used to drive the carrier 22 to move relative to the frame 21 along the first direction, so that the carrier 22 can shake the sample tube, and the driving component 3 can also drive the frame 21 to drive the carrier 22 to move along the second direction, so that the carrier 22 can mix the sample tube, so that the sample tube can be mixed in the first direction and the second direction respectively. Compared with the linear reciprocating movement in one direction in the prior art, the utility model can perform linear reciprocating movement in two directions respectively, thereby reducing the occurrence of uneven mixing of the peripheral blood to improve the test effect.

[0039] It should be noted that, according to the placement of the peripheral blood mixing mechanism, the peripheral blood mixing mechanism can be placed vertically or horizontally. For ease of understanding, in the relevant embodiments, the peripheral blood mixing mechanism is placed vertically, the first direction is the horizontal direction, and the second direction is the vertical direction perpendicular to the first direction.

[0040] It should be added that, under the continuous driving of the driving assembly 3, the movement trajectory of the carrier 22 is the upper left-lower right-upper left, which is a continuous cycle.

[0041] In this embodiment, the sample rack assembly 2 further includes a first guide member 23 and a first elastic member 24. The rack body 21 includes a first rack 211 and a second rack 212. The first guide member 23 connects the first rack 211 and the second rack 212. The first guide member 23 passes through the carrier 22 and is used to guide the carrier 22 to move along the first direction. By providing the first guide member 23, the carrier 22 can move along the first direction along the direction of the first guide member 23, so that the carrier 22 can mix the sample tubes in the first direction.

[0042] Further, the first elastic member 24 is sleeved on the first guide member 23 and elastically abuts between the carrier 22 and the second frame 212. Specifically, the first elastic member 24 can be a spring. When the driving component 3 drives the carrier 22 to move along the first direction, the carrier 22 and the second frame 212 squeeze the first elastic member 24. When the carrier 22 loses the driving force of the driving component 3, the elastic deformation force of the first elastic member 24 acts on the carrier 22 and can push the carrier 22 to reset.

[0043] Furthermore, the carrier 22 is provided with a sliding bearing 221, and the sliding bearing 221 is slidably connected to the first guide member 23. By providing the sliding bearing 221, the friction between the carrier 22 and the first guide member 23 can be reduced, so that the carrier 22 can slide with the first guide member 23 more smoothly.

[0044] Furthermore, the sample rack assembly 2 further includes a second guide member 25 and a second elastic member 26. The second guide member 25 is mounted on the fixed frame 1 and is used to guide the frame body 21 to move along the second direction. Specifically, the second guide member 25 can be a guide rail. By providing the second guide member 25, the frame body 21 can move along the second direction.

[0045] Further, the second elastic member 26 is elastically connected between the fixing frame 1 and the frame body 21. Specifically, the second elastic member 26 can be a spring. When the driving assembly 3 drives the frame body 21 to move along the second direction, the frame body 21 and the fixing frame 1 squeeze the second elastic member 26. When the frame body 21 loses the driving force of the driving assembly 3, the elastic deformation force of the second elastic member 26 acts on the frame body 21 and can push the frame body 21 to reset.

[0046] In one embodiment, if Figure 2 As shown, the sample rack assembly 2 further includes a guide plate 27, which is connected to the carrier 22. The driving assembly 3 drives the guide plate 27 to drive the carrier 22 to move along the first direction. By providing the guide plate 27, the driving assembly 3 can drive the carrier 22 to move by driving the guide plate 27.

[0047] In this embodiment, the sample rack assembly 2 further includes a mounting plate 28 and a rolling wheel 29. The mounting plate 28 is mounted on the frame 21. The rolling wheel 29 is rotatably connected to the mounting plate 28. The driving assembly 3 drives the rolling wheel 29 to drive the mounting plate 28 to move along the second direction, and the mounting plate 28 drives the frame 21 and the carrier 22 to move along the second direction. By providing the rolling wheel 29, the driving assembly 3 drives the rolling wheel 29 to drive the mounting plate 28 to move, and in the process of the driving assembly 3 driving the rolling wheel 29, the rolling wheel 29 and the driving assembly 3 are in rolling friction, which can reduce the wear of the driving assembly 3 on the rolling wheel 29.

[0048] In one embodiment, if Figure 2 and Figure 3 As shown, the driving assembly 3 includes a driving motor 31 and a driving shaft 32 connected to the driving motor 31. The driving motor 31 is installed on the fixing frame 1. The driving shaft 32 is provided with a first cam 321 and a second cam 322. The first cam 321 is in rolling contact with the guide plate 27, and the second cam 322 is in rolling contact with the rolling wheel 29. The first cam 321 and the second cam 322 rotate simultaneously. When the first cam 321 contacts the guide plate 27 and drives the guide plate 27 to move in the first direction, the guide plate 27 drives the carrier 22 to move in the first direction. When the second cam 322 contacts the rolling wheel 29 and drives the rolling wheel 29 to move in the second direction, the rolling wheel 29 drives the mounting plate 28 to move in the second direction, and the mounting plate 28 drives the frame 21 and the carrier 22 to move in the second direction.

[0049] Specifically, the first cam 321 includes a first extreme position 3211 and a second extreme position 3212, and the second cam 322 includes a third extreme position 3221 and a fourth extreme position 3222. In the first extreme position 3211, the carrier 22 moves along the first direction, and the carrier 22 and the frame 21 squeeze the first elastic member 24. In the second extreme position 3212, the carrier 22 is reset under the push of the elastic deformation force of the first elastic member 24. In the third extreme position 3221, the frame 21 drives the carrier 22 to move along the second direction, and the frame 21 and the fixed frame 1 squeeze the second elastic member 26. In the fourth extreme position 3222, the frame 21 is reset under the push of the elastic deformation force of the second elastic member 26.

[0050] In one embodiment, if Figure 2 As shown, the peripheral blood mixing mechanism also includes a sensing element 4, which is installed on the fixed frame 1 and is used to sense the position of the frame 21. Specifically, the sensing element 4 is an inductive optical coupler. By setting the sensing element 4, the sensing element 4 can sense the sensing sheet on the frame 21, thereby obtaining the position information of the frame 21.

[0051] The utility model also provides a blood cell detector, which includes the peripheral blood mixing mechanism described in any one of the above embodiments.

[0052] In this embodiment, the blood cell detector of the utility model uses the above-mentioned peripheral blood mixing mechanism, and the carrier 22 of the peripheral blood mixing mechanism is used to carry the sample tube. The driving component 3 is installed on the fixed frame 1, and is used to drive the carrier 22 to move relative to the frame 21 along the first direction, so that the carrier 22 can shake the sample tube. The driving component 3 can also drive the frame 21 to drive the carrier 22 to move along the second direction, so that the carrier 22 can mix the sample tube, so that the sample tube can be mixed in the first direction and the second direction respectively, thereby reducing the occurrence of uneven mixing of the peripheral blood to improve the test effect.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A peripheral blood mixing mechanism, characterized in that: The peripheral blood mixing mechanism comprises: Fixed frame; A sample rack assembly, the sample rack assembly comprising a rack body and a carrier slidably connected to the rack body, the carrier being used to carry a sample tube; and A drive assembly is used to drive the carrier to move relative to the frame along a first direction. The drive assembly can also drive the frame to drive the carrier to move along a second direction so that the carrier can mix the sample tube, and the first direction and the second direction are set at an angle.

2. The peripheral blood mixing mechanism according to claim 1, characterized in that: The driving assembly includes a driving motor and a driving shaft connected to the driving motor. The driving motor is installed on the fixing frame. The driving shaft is provided with a first cam and a second cam. The first cam is used to drive the carrier to move along the first direction. The second cam is used to drive the frame to drive the carrier to move along the second direction.

3. The peripheral blood mixing mechanism according to claim 2, characterized in that: The sample rack assembly further includes a first guide and a first elastic member, the rack body includes a first rack and a second rack, the first guide connects the first rack and the second rack, the first guide passes through the carrier and is used to guide the carrier to move along the first direction; The first elastic member is sleeved on the first guide member and elastically abuts between the carrier and the second frame.

4. The peripheral blood mixing mechanism according to claim 3, characterized in that: The carrier is provided with a sliding bearing, and the sliding bearing is slidably connected to the first guide member.

5. The peripheral blood mixing mechanism according to claim 3, characterized in that: The sample rack assembly further comprises a second guide member and a second elastic member, wherein the second guide member is mounted on the fixed rack and is used to guide the rack to move along the second direction; The second elastic member is elastically connected between the fixing frame and the frame body.

6. The peripheral blood mixing mechanism according to claim 5, characterized in that: The sample rack assembly further comprises a guide plate, wherein the guide plate is connected to the carrier, and the first cam drives the guide plate to drive the carrier to move along a first direction.

7. The peripheral blood mixing mechanism according to claim 6, characterized in that: The sample rack assembly also includes a mounting plate and a rolling wheel, wherein the mounting plate is mounted on the rack body, and the rolling wheel is rotatably connected to the mounting plate, and the second cam drives the rolling wheel to drive the mounting plate to move along the second direction, and the mounting plate drives the rack body and the carrier to move along the second direction.

8. The peripheral blood mixing mechanism according to claim 7, characterized in that: The first cam includes a first extreme position and a second extreme position, and the second cam includes a third extreme position and a fourth extreme position. In the first extreme position, the carrier moves along the first direction, and the carrier and the frame squeeze the first elastic member. In the second extreme position, the carrier is reset under the push of the elastic deformation force of the first elastic member. In the third extreme position, the frame drives the carrier to move along the second direction, and the frame and the fixing frame squeeze the second elastic member. In the fourth extreme position, the frame is reset under the push of the elastic deformation force of the second elastic member.

9. The peripheral blood mixing mechanism according to claim 1, characterized in that: The peripheral blood mixing mechanism also includes a sensor, which is installed on the fixing frame and is used to sense the position of the frame.

10. A blood cell detector, characterized in that: The blood cell detector includes the peripheral blood mixing mechanism as described in any one of claims 1-9.

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