Photographing device for blood sample

Abstract

The utility model relates to a photographing device for a blood sample, which comprises a camera assembly, a sensing assembly, a driving assembly and a transmission assembly, and is characterized in that the camera assembly comprises a main body lens and a focusing lens, the focusing lens is sleeved on the main body lens, and the focusing lens is in threaded connection with the main body lens; the sensing assembly comprises a sensing part, a first sensor and a second sensor, the first sensor is located above the second sensor, and the first sensor and the second sensor are used for sensing the sensing part; the transmission assembly is connected with the focusing lens and the induction piece, the driving assembly is in transmission connection with the transmission assembly, and the driving assembly drives the focusing lens to rotate relative to the main body lens through the transmission assembly and drives the induction piece to move in the vertical direction. According to the photographing device for the blood sample, centrifugal machines with different height specifications can be clearly photographed in a high-speed rotating state, manual operation is not needed, adjusting time and labor cost are saved, and deviation and error probability caused by manual focusing are avoided.

Description

Technical Field

[0001] This utility model relates to a photographing device for blood samples. Background Technology

[0002] When a blood sample is centrifuged at high speed, it forms layers due to differences in component density. Red blood cells form the outermost layer, which is red; plasma forms the innermost layer, which is dark yellow; and white blood cells form the middle layer, which is white. After stratification, a peristaltic pump removes the outermost red blood cells and the innermost dark yellow plasma from the centrifuge chamber, leaving the white blood cells in the middle. The transfer of the outer red blood cells and the inner plasma is determined by taking a picture taken by a camera above the centrifuge chamber. The picture shows the three different colored layers of the blood sample during centrifugation. Once the outer red layer and the inner dark yellow layer have been transferred, the image is analyzed by a visual algorithm, and the transfer of liquid is stopped.

[0003] Currently, there are two types of cameras: fully automatic focusing cameras and manual focusing cameras. Fully automatic focusing cameras automatically adjust the focus based on the distance to the object being photographed, but this only works for stationary or slowly moving objects; it cannot achieve real-time focusing on rapidly rotating or moving objects. Manual focusing cameras allow users to manually adjust the focus for objects at different distances, but for applications requiring frequent switching between containers of different heights and sizes, users must manually adjust the camera focus and confirm focus after each switch, causing significant inconvenience in practical use. Utility Model Content

[0004] The purpose of this invention is to provide a device for photographing blood samples.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A photographing device for blood samples, the photographing device comprising a camera assembly, a sensing assembly, a driving assembly, and a transmission assembly, the camera assembly comprising a main lens and a focusing lens, the focusing lens being sleeved on the main lens and threadedly connected to the main lens;

[0007] The sensing component includes a sensing element, a first sensor, and a second sensor. The first sensor is located above the second sensor, and the first and second sensors are used to sense the sensing element.

[0008] The transmission assembly is connected to the focusing lens and the sensor. The drive assembly is connected to the transmission assembly. The drive assembly drives the focusing lens to rotate relative to the main lens through the transmission assembly, and drives the sensor to move in the up and down direction.

[0009] According to some embodiments of the present invention, the driving component includes a drive motor and a first gear, wherein the first gear is fixedly mounted on the drive shaft of the drive motor.

[0010] The transmission assembly includes a second gear, a guide member, and a third gear. The second gear is fixedly mounted on the focusing lens, the third gear is mounted on the guide member and threadedly connected to the guide member, and the sensing element is movably mounted on the guide member and located above the third gear.

[0011] The second gear is located between the first gear and the third gear. The first gear meshes with the second gear, and the second gear meshes with the third gear. The central axes of the first gear, the second gear, and the third gear are parallel and all extend in the vertical direction.

[0012] According to some embodiments of the present invention, the sensing element includes a sleeve and a sensing plate, the sleeve is sleeved on the guide member, and the sensing plate is connected to the outer periphery of the sleeve.

[0013] According to some embodiments of this utility model, the sleeve is provided with a guide hole, the guide hole is elongated and extends in the vertical direction; the guide member is provided with a limiting member, the limiting member passing through the guide hole.

[0014] According to some embodiments of the present invention, the first sensor is disposed on the first support, the second sensor is disposed on the second support, and the first support is located above the second support.

[0015] According to some embodiments of this utility model, the first support and the second support each include a first plate and a second plate, the first plate and the second plate are arranged opposite each other in a front-back direction, a gap is maintained between the first plate and the second plate, the first sensor is disposed on the first plate or the second plate of the first support, and the second sensor is disposed on the first plate or the second plate of the second support.

[0016] According to some embodiments of this utility model, both the first support and the second support further include a connecting plate, and one end of the first plate and one end of the second plate are connected to the same side of the connecting plate and perpendicular to it.

[0017] According to some embodiments of this utility model, the guide member is columnar; the upper end of the guide member is provided with a limiting part to prevent the sleeve from disengaging from the guide member.

[0018] According to some embodiments of this utility model, the device further includes a housing, and the camera assembly, sensing assembly, driving assembly and transmission assembly are all disposed within the housing. A through hole is provided at the bottom of the housing, and the through hole is disposed opposite to the focusing lens.

[0019] According to some embodiments of this utility model, the guide member and the housing are provided with corresponding mounting holes, and the guide member and the housing are fixed by installing fasteners in the mounting holes.

[0020] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0021] This invention relates to a photographing device for blood samples. It controls the raising and lowering of the focusing lens through a drive component and a transmission component, and precisely controls the position of the focusing lens through a sensing component. This facilitates clear photographing of centrifuges of different heights and specifications at high speeds without the need for manual operation, saving time and labor costs, and avoiding the deviations and errors caused by manual focusing. Attached Figure Description

[0022] Appendix Figure 1 Structural diagrams of the photographing device and centrifuge for blood samples provided by this utility model;

[0023] Appendix Figure 2 The sensor of the photographing device for blood samples provided by this utility model is located in the first support and the front view of the centrifuge;

[0024] Appendix Figure 3 The sensor of the blood sample photographing device provided by this utility model is located on the second support and in the front view of the centrifuge;

[0025] Appendix Figure 4 A top view of the photographing device for blood samples provided by this utility model;

[0026] Appendix Figure 5 A structural diagram from a first perspective showing the sensor of the blood sample imaging device provided by this utility model located on the first support;

[0027] Appendix Figure 6 A structural diagram from a second perspective showing the sensor of the blood sample imaging device provided by this utility model located on the first support;

[0028] Appendix Figure 7 A structural diagram of the camera assembly of the blood sample photographing device provided by this utility model;

[0029] Appendix Figure 8 Structural diagram of the sensor, first support, and second support of the photographing device for blood samples provided by this utility model;

[0030] Appendix Figure 9 A structural diagram of the sensor element of the blood sample photographing device provided by this utility model;

[0031] Appendix Figure 10 A first-view structural diagram of the housing, camera assembly, sensing assembly, driving assembly, and transmission assembly of the camera assembly of the blood sample imaging device provided by this utility model;

[0032] Appendix Figure 11 This is a structural diagram from a second perspective of the housing of the camera assembly of the photographing device for blood samples provided by this utility model.

[0033] In the attached diagrams above:

[0034] 1-Main lens; 2-Focusing lens; 3-Sensor; 31-Sleeve; 32-Sensor plate; 4-First support; 41-First plate; 42-Second plate; 43-Connecting plate; 5-Second support; 6-Drive motor; 7-First gear; 8-Second gear; 9-Guide; 91-Mounting hole; 10-Third gear; 11-Limiting component; 12-Limiting part; 13-Housing; 131-Mounting hole; 132-Through hole; 14-Centrifuge. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] See Figures 1 to 11 The illustrated device for photographing blood samples includes a housing 13, a camera assembly, a sensing assembly, a driving assembly, and a transmission assembly, wherein:

[0038] The housing 13 is cuboid in shape and has an accommodating space. The camera assembly, sensing assembly, driving assembly, and transmission assembly are all housed inside the housing 13.

[0039] The camera assembly includes a main lens 1 and a focusing lens 2. The focusing lens 2 is fitted onto the lower part of the main lens 1 and is threadedly connected to the main lens 1. Specifically, the lower outer circumference of the main lens 1 has an external thread, and the inner circumference of the focusing lens 2 has an internal thread that matches the external thread. The upper end of the main lens 1 is fixedly connected to the top of the housing 13, and the position of the main lens 1 is fixed. The focusing lens 2 can move up and down relative to the main lens 1 along the height direction (vertical direction) of the main lens 1 to adjust the focus.

[0040] The sensing component includes a sensing element 3, a first sensor, and a second sensor. Both the first and second sensors are position sensors, with the first sensor located above the second sensor. The first and second sensors are used to sense the sensing element 3, with the first sensor located at a second position. The camera component is located between the sensing element 3 and the driving component.

[0041] The transmission assembly is connected to the focusing lens 2 and the sensor 3. The drive assembly is connected to the transmission assembly. The drive assembly drives the focusing lens 2 to rotate relative to the main lens 1 through the transmission assembly, and drives the sensor 3 to move in the up and down direction.

[0042] In some embodiments, the drive assembly includes a drive motor 6 and a first gear 7, the first gear 7 being fixedly mounted on the drive shaft of the drive motor 6. The transmission assembly includes a second gear 8, a guide member 9, and a third gear 10. The second gear 8 is fixedly mounted on the focusing lens 2. The guide member 9 extends vertically and its upper end is fixedly connected to the upper part of the housing 13. The third gear 10 is mounted on the guide member 9 and is threadedly connected to the guide member 9 (the inner circumference of the third gear 10 is provided with an internal thread, and the outer circumference of the guide member 9 is provided with an external thread that mates with the internal thread). The sensing element 3 is movably mounted on the guide member 9 and is located above the third gear 10.

[0043] The second gear 8 is located between the first gear 7 and the third gear 10. The first gear 7 meshes with the second gear 8, and the second gear 8 meshes with the third gear 10. The central axes of the first gear 7, the second gear 8, and the third gear 10 are parallel and all extend in the vertical direction.

[0044] In some embodiments, the sensing element 3 includes a sleeve 31 and a sensing plate 32. The sleeve 31 is sleeved on the guide 9, and the sensing plate 32 is connected to the outer periphery of the sleeve 31. The sleeve 31 is located above the third gear 10 and can move along the height direction of the guide 9.

[0045] Preferably, see Figure 5-6 The sleeve 31 is provided with a guide hole, which is elongated and extends vertically. The axial direction of the guide hole is consistent with the axial direction of the guide member 9. The guide member 9 is provided with a limiting member 11, which passes through the guide hole. The limiting member 11 can limit the movement distance of the sleeve 31 along the guide member 9. The limiting member 11 is preferably cylindrical, and the center line of the limiting member 11 is perpendicular to the center line of the guide member 9.

[0046] In some embodiments, a first sensor is disposed on a first support 4 and a second sensor is disposed on a second support 5. The first support 4 is located above the second support 5, and both the first support 4 and the second support 5 are connected to the housing 13.

[0047] See Figure 8-9 Both the first support 4 and the second support 5 include a first plate and a second plate, which are arranged opposite each other in a front-to-back direction with a gap between them. A first sensor is disposed on the first plate 41 or the second plate 42 of the first support 4, and a second sensor is disposed on the first plate or the second plate of the second support 5. The gap between the first plate and the second plate of the first support 4 and the gap between the first plate and the second plate of the second support 5 are distributed in a vertical direction. In some embodiments, both the first support 4 and the second support 5 further include a connecting plate 43, which is fixedly connected to the housing 13 (e.g., by a bolt and nut assembly). One end of the first plate and one end of the second plate are both connected to the same side of the connecting plate 43 and are perpendicular to it.

[0048] In some embodiments, a limiting portion 12 is provided at the upper end of the guide member 9 to prevent the sleeve 31 from disengaging from the guide member 9, and the sensing element 3 is located between the limiting portion 12 and the third gear 10. Preferably, the guide member 9 is cylindrical; the limiting portion 12 is disc-shaped, and the diameter of the limiting portion 12 is larger than the diameter of the guide member 9.

[0049] In some embodiments, the top of the guide member 9 is fixedly connected to the upper part of the housing 13, and the bottom of the guide member 9 and the housing 13 are provided with corresponding mounting holes (mounting hole 131 on the housing 13, mounting hole 91 at the bottom of the guide member 9). The guide member 9 is fixed to the housing 13 by installing fasteners in the mounting holes. The fasteners can be removed when disassembling, making the installation operation convenient and quick.

[0050] In this example, a through hole 132 is provided at the bottom of the housing 13. The through hole 132 is positioned opposite to the focusing lens 2 and allows light to pass through.

[0051] The device also includes a controller, which is connected to the drive assembly and the transmission assembly. The controller is used to control the operation of the drive assembly based on the detection results of the first sensor and the second sensor, so that clear pictures can be taken of centrifuge containers of different heights and sizes after automatic focusing.

[0052] The specific implementation of the photographing device for blood samples in this example is as follows: the drive component is activated, the first gear 7 rotates to drive the second gear 8 to rotate, so as to drive the focusing lens 2 to rotate relative to the main lens 1. The second gear 8 rotates to drive the third gear 10 to rotate, so as to drive the sensor 3 to move along the height direction of the guide 9. During the movement of the sensor 3, it will sense the first sensor located at the first position or the second sensor located at the second position.

[0053] In this example, there are two types of centrifuges: one is a tall size with a larger height dimension, and the other is a short size with a smaller height dimension.

[0054] For high-specification centrifuges, see [link / reference]. Figure 2 The controller controls the drive component to move and ultimately controls the lifting and lowering of the sensor 3. When the sensor 3 senses the first sensor located at the first position, the drive component stops working and the sensor 3 stops at the first support 4. The sensor 3 stops at a relatively high height, at which point the focal length of the camera meets the focusing requirements for taking pictures of the top surface of the centrifuge.

[0055] When referring to a short-sized centrifuge, see Figure 3 The controller controls the drive component to move and ultimately controls the raising and lowering of the sensor 3. When the sensor 3 senses the second sensor located in the second position, the drive component stops working, and the sensor 3 stops at the second support. The sensor 3 stops at a lower height, at which point the focal length of the camera meets the focusing requirements for taking pictures of the top surface of the centrifuge.

[0056] The imaging device for blood samples in this example controls the sensor to move up and down in the vertical direction by controlling the drive component. After the sensor senses the first sensor located in the first position or the second sensor located in the second position, it stops at the corresponding position to determine the position of the focusing lens, so as to adjust the focusing parameters and more accurately correspond to the tall or short centrifuge.

[0057] The imaging device for blood samples described in this example, used in scenarios requiring high-speed centrifugation to ultimately obtain white blood cells, adjusts the focal length of the camera through drive and transmission components. This allows it to focus and capture clear images of high-speed rotating objects, as well as automatically focus and capture clear images of centrifuges of different heights. It automates the switching between centrifuge containers of different heights without requiring manual operation, significantly reducing experimental time and labor costs, and avoiding the deviations and errors associated with manual focusing.

[0058] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A device for photographing blood samples, characterized in that, The photographing device includes a camera assembly, a sensing assembly, a driving assembly, and a transmission assembly. The camera assembly includes a main lens and a focusing lens. The focusing lens is sleeved on the main lens and is threadedly connected to the main lens. The sensing component includes a sensing element, a first sensor, and a second sensor. The first sensor is located above the second sensor, and the first and second sensors are used to sense the sensing element. The transmission assembly is connected to the focusing lens and the sensor. The drive assembly is connected to the transmission assembly. The drive assembly drives the focusing lens to rotate relative to the main lens through the transmission assembly, and drives the sensor to move in the up and down direction.

2. The photographing device for blood samples according to claim 1, characterized in that, The drive assembly includes a drive motor and a first gear, wherein the first gear is fixedly mounted on the drive shaft of the drive motor. The transmission assembly includes a second gear, a guide member, and a third gear. The second gear is fixedly mounted on the focusing lens, the third gear is mounted on the guide member and threadedly connected to the guide member, and the sensing element is movably mounted on the guide member and located above the third gear. The second gear is located between the first gear and the third gear. The first gear meshes with the second gear, and the second gear meshes with the third gear. The central axes of the first gear, the second gear, and the third gear are parallel and all extend in the vertical direction.

3. The photographic device for blood samples according to claim 2, characterized in that, The sensing element includes a sleeve and a sensing plate. The sleeve is fitted onto the guide member, and the sensing plate is connected to the outer periphery of the sleeve.

4. The photographic device for blood samples according to claim 3, characterized in that, The sleeve has a guide hole, which is elongated and extends vertically; the guide member has a limiting member, which passes through the guide hole.

5. The photographic device for blood samples according to claim 1, characterized in that, The first sensor is mounted on the first support, the second sensor is mounted on the second support, and the first support is located above the second support.

6. The photographic device for blood samples according to claim 5, characterized in that, Both the first support and the second support include a first plate and a second plate, which are arranged opposite each other in the front-rear direction and a gap is maintained between them. The first sensor is disposed on the first plate or the second plate of the first support, and the second sensor is disposed on the first plate or the second plate of the second support.

7. The photographic apparatus for blood samples according to claim 6, characterized in that, Both the first support and the second support further include a connecting plate, and one end of the first plate and one end of the second plate are connected to the same side of the connecting plate and perpendicular to it.

8. The photographic device for blood samples according to claim 3, characterized in that, The guide member is columnar; a limiting part is provided at the upper end of the guide member to prevent the sleeve from disengaging from the guide member.

9. The photographic device for blood samples according to claim 2, characterized in that, The device also includes a housing, in which the camera assembly, sensing assembly, driving assembly and transmission assembly are all disposed. A through hole is provided at the bottom of the housing, and the through hole is positioned opposite to the focusing lens.

10. The photographic apparatus for blood samples according to claim 9, characterized in that, The guide member and the housing have corresponding mounting holes. The guide member and the housing are fixed by installing fasteners in the mounting holes.

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