Blood testing device

Abstract

An embodiment of the present application provides a blood detection device, which includes a clamping assembly, a laser emitter, and a laser receiver. The clamping assembly is provided with a blood sample clamping space; the laser emitter is disposed on the clamping assembly; the laser receiver is disposed on the clamping assembly and is oppositely disposed on both sides of the blood sample clamping space with respect to the laser emitter. Both the blood sample clamping space and the laser receiver are located on the optical path of the laser emitter. The blood detection device provided by the embodiment of the present application clamps a blood sample through the blood sample clamping space, and the laser emitted by the laser emitter passes through the blood sample and then is incident on the laser receiver. According to the light intensity received by the laser receiver, the types of blood components or the degree of plasma chylomicron can be accurately calculated, improving the accuracy of judging the types of blood components or the degree of plasma chylomicron.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a blood testing device. Background Art

[0002] Blood is composed of plasma, white membrane (platelets), red blood cells and other components. Due to certain diseases, patients sometimes need to be transfused with blood or blood components during treatment. With the development of science and technology, the application of blood components has been increasingly valued by people, which has led to component transfusion. The so-called component transfusion is a technology that separates a certain component from the blood, makes a blood preparation with a higher concentration, and then transfuses the corresponding product according to the needs of different patients. At present, there are two methods for preparing component blood: one is to collect blood components alone; the other is to use whole blood for separation. The main source of component blood still relies on the separation of whole blood. After separation by a centrifuge, the blood in the whole blood bag will be layered, with the plasma layer on the top, the white membrane layer in the middle, and the red blood cell layer on the bottom. At present, it is generally used to separate the plasma layer from a bag of whole blood or to separate the white membrane layer from a blood bag with only white membrane and red blood cells by naked eye observation and manual squeezing, so that the plasma layer (or white membrane layer) on the blood bag is allowed to enter the empty collection bag along the catheter, and then the catheter is heat-sealed to achieve the purpose of blood component separation. However, due to the use of naked eyes to observe the blood component layering, there is often a large error.

[0003] In addition, in modern medical treatment and emergency treatment, blood transfusion has become one of the indispensable means to save lives and treat diseases. With the popularization and development of voluntary blood donation, the number of voluntary blood donations is increasing. According to statistics from the blood donation center, the proportion of chylomicronized blood in domestic blood donors is as high as 1%. Chylomicronized blood is "plasma with floating oil" or "lipid blood". After the chylomicronized blood is separated from the whole blood components, the separated plasma contains a large number of chylomicronized particles, which are milky white or turbid. This is chylomicronized plasma. In theory, there is no health hazard to transfusing chylomicronized plasma to patients, but chylomicronized plasma contains a large number of microparticles, which may cause microvascular blockage when flowing into the patient's body, so most hospital blood banks do not use it.

[0004] According to the national standard GB18469-2012 "Quality Requirements for Whole Blood and Component Blood", the degree of chyle in plasma is divided into mild, moderate and severe, and it is stipulated that mild and moderate can be used clinically, but severe cannot be used. However, in general, the prepared plasma has been sealed and packaged, and it is impossible to use conventional sampling physical or chemical detection methods for detection. At present, there is no special instrument for the detection of chyle plasma to perform non-destructive (i.e., no need to break the bag for sampling), rapid and effective determination. When implementing this standard in daily work, hospitals, blood stations, biological products and other units usually use naked eye observation to quickly judge the degree of chyle in plasma. Due to the lack of a unified reference standard and the influence of subjective factors of the observer, there is a great deal of randomness and blindness, which often results in large differences in the results of judging the degree of chyle in plasma. In the mildest case, it leads to plasma waste, and in the worst case, chyle plasma is mixed into the subsequent process, causing serious accidents such as clinical accidents, which urgently need to be improved. Summary of the invention

[0005] The purpose of this application is to provide a blood testing device to solve the above problems. This application achieves the above purpose through the following technical solutions.

[0006] An embodiment of the present application provides a blood testing device, which includes a clamping assembly, a laser transmitter and a laser receiver. The clamping assembly is provided with a blood sample clamping space; the laser transmitter is arranged in the clamping assembly; the laser receiver is arranged in the clamping assembly and is arranged on both sides of the blood sample clamping space opposite to the laser transmitter, and the blood sample clamping space and the laser receiver are both located in the optical path of the laser transmitter.

[0007] In some embodiments, the clamping assembly includes a base and a cover body, the cover body is rotatably connected to the base, the base is provided with a first clamping groove, the cover body is provided with a second clamping groove, the first clamping groove and the second clamping groove enclose a blood sample clamping space, and the cover body can be rotated relative to the base to enclose or separate the second clamping groove and the first clamping groove.

[0008] In some embodiments, the base is provided with a first light-shielding channel and a second light-shielding channel extending in the same direction and passing through the first clamping groove, and the first clamping groove is located between the first light-shielding channel and the second light-shielding channel; the laser transmitter is disposed in the first light-shielding channel, and the laser receiver is disposed in the second light-shielding channel.

[0009] In some embodiments, the blood testing device further includes a transparent lens, which is disposed in the first light-shielding channel and between the first clamping groove and the laser emitter.

[0010] In some embodiments, the base includes a base body and a receiver fixing seat, the receiver fixing seat is detachably mounted on the base body and is provided with a first clamping groove, and the laser receiver is mounted on the receiver fixing seat; the cover body is rotatably connected to the receiver fixing seat and is covered outside a portion of the receiver fixing seat, and the laser receiver is located inside the cover body.

[0011] In some embodiments, the base includes a base body and a receiver fixing seat, the receiver fixing seat is detachably mounted on the base body and is provided with a first clamping groove, and the laser receiver is installed on the receiver fixing seat; the cover body is rotatably connected to the base body and is arranged opposite to the receiver fixing seat; the cover body is provided with a snap-fit ​​groove, and part of the receiver fixing seat is accommodated in the snap-fit ​​groove.

[0012] In some embodiments, the clamping assembly further includes a torsion spring and a rotating shaft, wherein the rotating shaft is hinged to the base and the cover body, and the torsion spring is sleeved on the outer circumference of the rotating shaft and abuts against the base and the cover body.

[0013] In some embodiments, the blood testing device also includes a spectroscope and a laser detector, which are arranged between the laser transmitter and the blood sample holding space, and the spectroscope is located on the optical path of the laser transmitter to split the laser emitted by the laser transmitter into reflected light and transmitted light, and guide the reflected light and transmitted light to the laser detector and laser receiver respectively.

[0014] In some embodiments, the blood testing device further includes a focusing lens, which is disposed on the optical path of the laser emitter and located between the laser emitter and the blood sample holding space.

[0015] In some embodiments, the laser emitter is a laser emitter that emits laser light with a wavelength of 633nm-643nm, which is used to detect the types of blood components.

[0016] In some embodiments, the laser transmitter is a laser transmitter that emits laser light with a wavelength of 850 nm, which is used to detect the plasma chylomicron level.

[0017] Compared with the prior art, the blood testing device provided in the embodiment of the present application includes a clamping assembly, a laser transmitter and a laser receiver. The clamping assembly clamps the blood sample through the blood sample clamping space. The laser emitted by the laser transmitter passes through the blood sample and is incident on the laser receiver. The types of blood components (plasma, white membrane, red blood cells) can be accurately calculated based on the light intensity received by the laser receiver, so that the blood components can be accurately separated, or the degree of plasma chyle can be accurately calculated, so that the degree of chyle of plasma products can be digitally expressed, thereby improving the accuracy of judging the degree of plasma chyle, thereby providing medical staff with more accurate clinical data. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the structure of the blood testing device provided in the embodiment of the present application.

[0020] Figure 2 yes Figure 1 The illustrated embodiment provides a cross-sectional view of a blood testing device.

[0021] Figure 3 yes Figure 1 Another schematic diagram of the structure of the blood testing device provided by the illustrated embodiment.

[0022] Figure 4 yes Figure 1 An exploded view of a blood testing device provided by the illustrated embodiment.

[0023] Figure 5 It is a schematic diagram of the structure of a blood testing device provided in another embodiment of the present application.

[0024] Figure 6 yes Figure 5 The illustrated embodiment provides a cross-sectional view of a blood testing device.

[0025] Figure 7 yes Figure 5 An exploded view of a blood testing device provided by the illustrated embodiment.

[0026] Figure 8 yes Figure 5 Another cross-sectional view of the blood testing device provided by the illustrated embodiment. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0028] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application.

[0029] like Figure 1 and Figure 2 As shown, the blood testing device 100 provided in the embodiment of the present application includes a clamping assembly 110, a laser transmitter 120 and a laser receiver 130. The clamping assembly 110 is provided with a blood sample clamping space 111. The laser transmitter 120 and the laser receiver 130 are arranged in the clamping assembly 110, and the laser transmitter 120 and the laser receiver 130 are relatively arranged on both sides of the blood sample clamping space 111. The blood sample clamping space 111 and the laser receiver 130 are both located on the optical path of the laser transmitter 120.

[0030] The blood sample holding space 111 can be used to hold the blood sample 200 (see Figure 8 ), the laser transmitter 120 and the laser receiver 130 are arranged on both sides of the blood sample 200, and the laser emitted by the laser transmitter 120 passes through the blood sample 200 and then enters the laser receiver 130.

[0031] When detecting the types of blood components, the stratified whole blood is used as a blood sample. Since the colors of plasma, buffy coat, and red blood cells are different, plasma is light yellow, buffy coat is white, and red blood cells are dark red, and the degree of light absorption is also different, the laser receiver 130 generates an electrical signal according to the intensity of the received laser light, and converts the electrical signal into a digital signal to detect the types of blood components. The laser transmitter 120 can be a laser transmitter that emits a laser with a wavelength of 850nm.

[0032] When detecting the chylomicron degree of plasma, the plasma is used as a blood sample. According to the Lambert-Beer law, that is, the strength of a substance's absorption of a certain wavelength of light is related to the concentration of the absorbing substance and the thickness of its liquid layer, when a beam of parallel monochromatic light passes vertically through a uniform non-scattering absorbing substance, its absorbance A is proportional to the concentration c of the absorbing substance and the thickness b of the absorbing layer, and inversely proportional to the transmittance T. The thickness b of the absorbing layer is equal to the path length of the laser passing through the blood sample 200. The laser receiver 130 generates an electrical signal according to the intensity of the received laser light. By converting the electrical signal into a digital signal, the absorbance A can be determined, and then the concentration c of the absorbing substance, that is, the content of chylomicrons in the plasma, can be calculated, so that the chylomicron degree of the plasma product can be digitally expressed. Therefore, the blood testing device 100 can accurately detect the types of blood components or calculate the chylomicron degree of plasma, improve the accuracy of judging the chylomicron degree of plasma, and thus provide more accurate clinical data for medical staff.

[0033] In addition, the blood testing device 100 irradiates the plasma with the laser emitted by the laser transmitter 120, and utilizes the high brightness, monochromaticity and high directionality of the laser to reduce the light intensity loss that occurs when the light is incident on the laser receiver 130 except for absorption by the plasma chyle, thereby further improving the accuracy of the detection.

[0034] The laser transmitter 120 may be a laser transmitter that emits a laser with a wavelength of 633nm-643nm. According to experiments, lasers within this wavelength range are more easily absorbed by plasma chyle, making the difference between the various test results more obvious, and facilitating the determination of the chyle degree of the tested plasma. The wavelength of light received by the laser receiver 130 corresponds to the wavelength of the laser emitted by the laser transmitter 120. For example, when the laser transmitter 120 is a laser transmitter that emits a laser with a wavelength of 633nm-643nm, the photosensor in the laser receiver 130 may be a photosensor that is more sensitive to lasers with a wavelength of 633nm-643nm.

[0035] In this embodiment, the laser receiver 130 is located on the optical path of the laser transmitter 120, which may mean that the photosensitive sensor in the laser receiver 130 is located on the optical path of the laser transmitter 120, and the laser emitted by the laser transmitter 120 can accurately reach the photosensitive sensor in the laser receiver 130 after passing through the blood. The blood sample clamping space 111 is located on the optical path of the laser transmitter 120, which means that at least part of the blood sample clamping space 111 is located on the optical path of the laser transmitter 120. The blood sample clamping space 111 can be adapted to the outer contour of the blood sample 200 to clamp the blood sample 200 more stably.

[0036] The blood sample 200 may be a transparent blood storage container with a fixed shape, such as a transparent catheter, a transparent glass container, etc. Those skilled in the art may make adaptive adjustments to the blood sample holding space 111 according to the shape of the commonly used blood sample 200. As an example, the blood sample 200 is a cylindrical catheter, the blood sample holding space 111 may be a cylindrical receiving cavity, the laser emitter 120 and the laser receiver 130 may be relatively arranged on both sides of the radial direction of the blood sample 200, and the absorption layer thickness b involved in the Lambert-Beer law is equal to the diameter of the blood sample 200. Of course, the laser emitter 120 and the laser receiver 130 may also be relatively arranged on both sides of the axial direction of the blood sample 200, and the absorption layer thickness b is equal to the length of the blood sample 200.

[0037] In some embodiments, the size of the blood sample holding space 111 may also be larger than the size of the blood sample 200 to increase the versatility of the detection device. For example, a blood sample 200 whose size is smaller than the blood sample holding space 111 may be placed in the blood sample holding space 111 for chyle detection, as long as the blood sample holding space 111 can accommodate the blood sample 200.

[0038] The clamping assembly 110 may include a base 140 and a cover 150. The cover 150 is rotatably connected to the base 140. The base 140 is provided with a first clamping groove 141, and the cover 150 is provided with a second clamping groove 151 (see Figure 3 ), the first clamping groove 141 and the second clamping groove 151 enclose a blood sample clamping space 111, and the cover body 150 can rotate relative to the base 140 to enclose or separate the second clamping groove 151 from the first clamping groove 141.

[0039] When in use, the cover 150 can be rotated to separate the second clamping groove 151 from the first clamping groove 141 (see Figure 3 ), place the blood sample 200 in the first clamping groove 141, and then rotate and reset the cover body 150 to enclose the second clamping groove 151 and the first clamping groove 141, so that the blood sample 200 can be clamped in the blood sample clamping space 111, which is convenient for taking and placing. In some other embodiments, the clamping assembly 110 can also be a clamp, a fixed bracket or a cylinder, etc., which will not be repeated here.

[0040] In this embodiment, the first clamping groove 141 and the second clamping groove 151 are adapted to the blood sample 200. For example, the blood sample 200 is a cylindrical conduit, and the first clamping groove 141 and the second clamping groove 151 are arc grooves with a radius equal to that of the blood sample 200, so as to firmly clamp the blood sample 200. The arc length of the cross section of the first clamping groove 141 can be greater than or equal to the arc length of the cross section of the second clamping groove 151, so that the blood sample 200 can be prevented from falling off from the first clamping groove 141 when the second clamping groove 151 is separated from the first clamping groove 141.

[0041] In this embodiment, the optical axis of the laser emitter 120 is located in the vertical direction, and the axial directions of the first clamping groove 141 and the second clamping groove 151 can be located in the horizontal plane to be perpendicular to the optical axis of the laser emitter 120, so that the absorption layer thickness b involved in the Lambert-Beer law can be equal to the diameter of the blood sample 200. In addition, the first clamping groove 141 and the second clamping groove 151 can respectively penetrate the base 140 and the cover 150 along their own axial directions, so that the blood sample 200 whose length is much greater than the first clamping groove 141 and the second clamping groove 151 can also be clamped in the first clamping groove 141 and the second clamping groove 151.

[0042] The base 140 is provided with a first light shielding channel 142 and a second light shielding channel 143 extending in the same direction and penetrating the first clamping groove 141, and the first clamping groove 141 is located between the first light shielding channel 142 and the second light shielding channel 143. The laser transmitter 120 is arranged in the first light shielding channel 142, and the laser receiver 130 is arranged in the second light shielding channel 143. The first light shielding channel 142 and the second light shielding channel 143 are both light-proof channels, which can block external light, reduce interference caused by external light, and improve detection accuracy. In addition, the first light shielding channel 142 and the second light shielding channel 143 extend in the same direction, such as the vertical direction, so that the laser transmitter 120 and the laser receiver 130 can be easily aligned when the product is assembled, and the assembly is simple.

[0043] In some embodiments, the base 140 is made of an opaque material to form a first light-shielding channel 142 and a second light-shielding channel 143 in the base 140. Of course, a light-shielding material may be applied to the inner wall of the base 140 in the first light-shielding channel 142 and the second light-shielding channel 143 to form a light-shielding layer, which can also achieve the purpose of shielding external light.

[0044] The blood testing device 100 may further include a transparent lens 160, which is disposed in the first light-shielding channel 142 and between the first clamping groove 141 and the laser emitter 120 to isolate the first clamping groove 141 and the first light-shielding channel 142, thereby preventing external impurities such as dust and water vapor from entering the first light-shielding channel 142 from the first clamping groove 141, causing light scattering and refraction, and affecting detection accuracy.

[0045] In this embodiment, the transparent lens 160 is adapted to the first light-shielding channel 142, that is, the outer size of the transparent lens 160 is adapted to the first light-shielding channel 142. For example, when the cross-section of the first light-shielding channel 142 is circular, the transparent lens 160 can be a circular lens with a diameter substantially equal to that of the first light-shielding channel 142 to completely block the first clamping groove 141 and the first light-shielding channel 142.

[0046] The base 140 may include a base body 145 and a receiver fixing seat 146, the receiver fixing seat 146 is detachably mounted on the base body 145 and is provided with a first clamping groove 141, the laser receiver 130 is mounted on the receiver fixing seat 146, the cover body 150 is rotatably connected to the receiver fixing seat 146, and is covered on at least part of the receiver fixing seat 146, and the laser receiver 130 is located inside the cover body 150.

[0047] The cover body 150 can be an opaque cover body. The cover body 150 is arranged outside the laser receiver 130 and part of the receiver fixing seat 146, and can block external light from entering the second shading channel 143 to avoid affecting the detection accuracy of the laser receiver 130. At the same time, it can play a certain protective role and protect precision optical devices from damage by external forces.

[0048] like Figure 2 and Figure 3 As shown, in this embodiment, the base body 145 is roughly a rectangular parallelepiped structure, and the receiver fixing seat 146 includes a first fixing seat body 1461 and a second fixing seat body 1462 protruding above the first fixing seat body 1461. The first fixing seat body 1461 is covered above the base 140, and the end of the base 140 is accommodated in the first fixing seat body 1461, so as to realize the snap connection between the base body 145 and the receiver fixing seat 146. The second fixing seat body 1462 is provided with a first clamping groove 141 and a receiver mounting groove 1463 located above the first clamping groove 141 (see Figure 4 ), the second light shielding channel 143 is located between the first clamping groove 141 and the receiver mounting groove 1463, and is mutually connected with the receiver mounting groove 1463. The first clamping groove 141 is an open groove with an opening facing obliquely upward, and the receiver mounting groove 1463 is an open groove with an opening facing vertically upward.

[0049] The first light shielding channel 142 can be connected to the first clamping groove 141 after passing through the base body 145, the first fixed seat body 1461 and the second fixed seat body 1462 in sequence along the vertical direction. The inner diameters of the first light shielding channel 142 in the base body 145, the first fixed seat body 1461 and the second fixed seat body 1462 can be equal or unequal. The transparent lens 160 can be installed in the part of the first light shielding channel 142 located in the first fixed seat body 1461. When the receiver fixing seat 146 is removed from the base body 145, the transparent lens 160 can be exposed to the outside, so that the user can replace or clean the transparent lens 160 conveniently.

[0050] The blood testing device 100 may further include a focusing lens 170, which is located on the optical path of the laser emitter 120 and between the laser emitter 120 and the blood sample holding space 111. The focusing lens 170 may be a convex lens, which is used to focus the laser and then inject it into the blood sample, so that the light intensity of the laser is more concentrated, thereby improving the detection accuracy. In this embodiment, the focusing lens 170 is located between the transparent lens 160 and the laser emitter 120.

[0051] like Figure 3 and Figure 4 As shown, the blood testing device 100 may further include a receiver positioning member 131, and the laser receiver 130 may be embedded and installed in the receiver positioning member 131. The receiver positioning member 131 and the receiver mounting groove 1463 are adapted to each other. The receiver positioning member 131 may be detachably installed in the receiver mounting groove 1463 by means of screw connection or the like, so as to fix the laser receiver 130 to the receiver fixing seat 146.

[0052] The clamping assembly 110 may further include a torsion spring 112 and a rotating shaft 113. The rotating shaft 113 is hinged to the base 140 and the cover 150. The torsion spring 112 is sleeved on the outer circumference of the rotating shaft 113 and abuts against the base 140 and the cover 150. When the cover 150 is rotated to separate the first clamping groove 141 and the second clamping groove 151, the torsion spring 112 is compressed and contracted. When the cover 150 is rotated to enclose the first clamping groove 141 and the second clamping groove 151, the torsion spring 112 pushes the cover 150 to clamp the base 140 through its own elastic restoring force, so that the blood sample can remain stable.

[0053] The torsion spring 112 may include two winding parts 1121 arranged at intervals, a first torsion arm 1122 connected between the two winding parts 1121, and a second torsion arm 1123 and a third torsion arm 1124 respectively extending outward from one end of the two winding parts 1121 away from the first torsion arm 1122. The two winding parts 1121 are both sleeved on the outer periphery of the rotating shaft 113, the first torsion arm 1122 is abutted against the cover body 150, and the second torsion arm 1123 and the third torsion arm 1124 are abutted against the base 140. The first torsion arm 1122 is roughly in a "U" shape, which can increase the contact area between the torsion spring 112 and the cover body 150. Similarly, the torsion spring 112 is abutted against the base 140 through the second torsion arm 1123 and the third torsion arm 1124, thereby increasing the contact area between the torsion spring 112 and the base 140.

[0054] The cover 150 is a roughly rectangular shell-shaped structure. The cover 150 is rotatably connected to the first fixed seat 1461 through the rotating shaft 113, and the second fixed seat 1462 can be accommodated in the cover 150. The first clamping groove 141 and the second clamping groove 151 can be separated by flipping the cover 150, and the first clamping groove 141 can be exposed to the outside, which is convenient for placing a blood sample. By completely opening the cover 150, the laser receiver 130 can be exposed to the outside, which is convenient for performing related operations on the laser receiver 130, such as replacing the laser receiver 130 or maintaining and servicing the laser receiver 130.

[0055] In this embodiment, the base 140 may further include a lens fixing seat 147, which is detachably mounted in the base body 145. The lens fixing seat 147 is generally a cylindrical structure, and the first light shielding channel 142 penetrates the lens fixing seat 147 along the axial direction of the lens fixing seat 147. The focusing lens 170 (see Figure 2 ) is installed at one end of the lens fixing seat 147, and the laser emitter 120 is located at the other end of the lens fixing seat 147.

[0056] The blood testing device 100 may further include a driving circuit board 180, which is mounted on one end of the base 140 away from the cover 150, and is electrically connected to the laser emitter 120, and is used to drive the laser emitter 120 to emit laser. In this embodiment, the driving circuit board 180 can be detachably mounted on the base body 145 by screw connection, and abuts against the lens fixing seat 147 to support the lens fixing seat 147, and the laser emitter 120 can be packaged and fixed on the surface of the driving circuit board 180 facing the lens fixing seat 147.

[0057] like Figure 5 and Figure 6As shown, in another embodiment of the present application, the base 140 may also include a base body 145 and a receiver fixing seat 146. The receiver fixing seat 146 is detachably mounted on the base body 145 and is provided with a first clamping groove 141. The laser receiver 130 is mounted on the receiver fixing seat 146. Figure 1-Figure 4 What is different from the illustrated embodiment is that the cover body 150 is rotatably connected to the base body 145 and is arranged opposite to the receiver fixing seat 146. The cover body 150 is provided with a snap-fitting groove 154, and part of the receiver fixing seat 146 is accommodated in the snap-fitting groove 154, thereby realizing the snap-fitting fixation of the cover body 150 and the base 140.

[0058] In this embodiment, the cover body 150 includes a connecting arm 153 and a covering portion 152. One end of the connecting arm 153 is rotatably connected to the side wall of the base body 145 through the rotating shaft 113, and the other end of the connecting arm 153 is provided with the covering portion 152. The covering portion 152 is provided with a snap-fit ​​groove 154 on the side facing the receiver fixing seat 146 and a second clamping groove 151 located below the snap-fit ​​groove 154.

[0059] In this embodiment, the base body 145, the receiver fixing seat 146 and the cover 152 are all roughly rectangular, and the cover 152 and the receiver fixing seat 146 are arranged at one end of the length direction of the base 140. The receiver fixing seat 146 is provided with a first clamping groove 141 and a receiver installation groove 1463 located above the first clamping groove 141 (see Figure 7 ), the second light shielding channel 143 is located between the first clamping groove 141 and the receiver mounting groove 1463, and is mutually connected with the receiver mounting groove 1463. The first clamping groove 141 is an open groove opening toward the covering portion 152, and the receiver mounting groove 1463 is an open groove opening toward the vertical upper side.

[0060] like Figure 7 As shown, in this embodiment, the blood testing device 100 may further include a receiver positioning member 131, the laser receiver 130 is embedded and installed in the receiver positioning member 131, the receiver positioning member 131 and the receiver installation groove 1463 are adapted to each other, and the receiver positioning member 131 is detachably installed in the receiver installation groove 1463. Figure 1-Figure 4Different from the illustrated embodiment, in this embodiment, the blood testing device 100 may further include a top light shielding plate 132, which is detachably mounted on the top of the receiver fixing seat 146, and the laser receiver 130 is located between the top light shielding plate 132 and the receiver positioning member 131. The top light shielding plate 132 is used to shield the receiver mounting groove 1463 and the second light shielding channel 143 to prevent external light from entering the receiver mounting groove 1463 and the second light shielding channel 143. After opening the top light shielding plate 132, the laser receiver 130 can be exposed to the outside, which is convenient for replacing, maintaining and servicing the laser receiver 130.

[0061] In this embodiment, the base 140 may further include a lens fixing seat 147 and a driving circuit board 180, etc., the clamping assembly 110 may further include a torsion spring 112 and a rotating shaft 113, etc., and the blood testing device 100 may further include a transparent lens 160 (see Figure 8 ) and focusing lens 170 (see Figure 8 ) etc. For the lens fixing seat 147, the driving circuit board 180, the torsion spring 112, the rotating shaft 113, the transparent lens 160 and the focusing lens 170, reference may be made to the relevant records of the above embodiments, which will not be described in detail here.

[0062] like Figure 8 As shown, the blood testing device 100 may further include a spectroscope 191 and a laser detector 192, which are disposed between the laser emitter 120 and the blood sample holding space 111, and the spectroscope 191 is located on the optical path of the laser emitter 120 to split the laser light emitted by the laser emitter 120 into reflected light and transmitted light, and guide the reflected light and the transmitted light to the laser detector 192 and the laser receiver 130, respectively. The laser detector 192 is used to detect the light level and whether the laser emitter 120 is abnormal, to ensure that the final test result is accurate.

[0063] The beam splitter 191 can be arranged in the first light shielding channel 142 at a 45° tilt relative to the optical axis of the laser emitter 120, and is located between the transparent lens 160 and the focusing lens 170. The beam splitter 191 can be a glass lens coated with a semi-transparent and semi-reflective film. The laser emitted by the laser emitter 120 can be separated into two beams of reflected and transmitted light with a light intensity ratio of 1:1 after passing through the beam splitter 191. If the light intensity of the reflected light detected by the laser detector 192 is outside the preset light intensity range, it can be determined that the laser emitter 120 is abnormal.

[0064] In this embodiment, the base body 145 is further provided with a third light shielding channel 148, and the third light shielding channel 148 runs through the base body 145 in a horizontal direction (see Figure 7), and is interconnected with the first light shielding channel 142. The spectroscope 191 is installed at the intersection of the third light shielding channel 148 and the first light shielding channel 142, and the laser detector 192 is installed in the third light shielding channel 148. The wavelength of light received by the laser detector 192 corresponds to the wavelength of light emitted by the laser emitter 120. For example, when the laser emitter 120 is a laser emitter that emits a laser with a wavelength of 633nm-643nm, the photosensor in the laser detector 192 can be a photosensor that is more sensitive to lasers with a wavelength of 633nm-643nm.

[0065] The blood testing device 100 may further include a spectroscope fixing seat 193 (see Figure 7 ) and laser detector holder 194 (see Figure 7 ), the beam splitter 191 is mounted on the beam splitter fixing seat 193, and the laser detector 192 is mounted on the laser detector fixing seat 194. The beam splitter fixing seat 193 and the laser detector fixing seat 194 are installed at both ends of the third light shielding channel 148 to fix the beam splitter 191 and the laser detector 192 in the third light shielding channel 148. In some embodiments, the beam splitter fixing seat 193 and the laser detector fixing seat 194 are detachably connected to the base body 145 by screws to facilitate the removal of the beam splitter 191 and the laser detector 192.

[0066] It should be noted that the blood testing device 100 described in all the above embodiments may include a spectroscope 191 and a laser detector 192, and is not limited to Figure 5-Figure 8 The embodiment shown.

[0067] The above is only a preferred embodiment of the present application and does not constitute any form of limitation to the present application. Although the present application has been disclosed as a preferred embodiment as above, it is not intended to limit the present application. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present application. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A blood detection device, characterized in that, it includes: a clamping assembly, provided with a blood sample clamping space, the clamping assembly includes a base and a cover body, the cover body is rotatably connected to the base, the base is provided with a first clamping groove, the cover body is provided with a second clamping groove, the first clamping groove and the second clamping groove enclose to form the blood sample clamping space, the cover body can rotate relative to the base to enclose or separate the second clamping groove and the first clamping groove, and the first clamping groove and the second clamping groove are adapted to the blood sample; the base is further provided with a first light-shielding channel and a second light-shielding channel that extend along the same direction and penetrate the first clamping groove, and the first clamping groove is located between the first light-shielding channel and the second light-shielding channel; the base includes a base body and a receiver fixing seat, the receiver fixing seat is detachably installed on the base body, and the first clamping groove is arranged on the receiver fixing seat; the cover body is rotatably connected to the receiver fixing seat and covers outside a part of the receiver fixing seat; a laser emitter, arranged in the first light-shielding channel; a laser receiver, arranged in the second light-shielding channel and installed on the receiver fixing seat, the laser receiver and the laser emitter are oppositely arranged on both sides of the blood sample clamping space, and the blood sample clamping space and the laser receiver are both located on the optical path of the laser emitter; and a transparent lens, the transparent lens is arranged in the first light-shielding channel and is located between the first clamping groove and the laser emitter; when the receiver fixing seat is detached from the base body, the transparent lens is exposed outside.

2. The blood detection device according to claim 1, characterized in that, the clamping assembly further includes a torsion spring and a rotating shaft, the rotating shaft is hinged to the base and the cover body, the torsion spring is sleeved on the outer periphery of the rotating shaft and abuts against the base and the cover body.

3. The blood detection device according to claim 1, characterized in that, the blood detection device further includes a beam splitter and a laser detector, the beam splitter and the laser detector are arranged between the laser emitter and the blood sample clamping space, and the beam splitter is located on the optical path of the laser emitter to split the laser emitted by the laser emitter into reflected light and transmitted light, and guide the reflected light and the transmitted light to the laser detector and the laser receiver respectively.

4. The blood detection device according to claim 1, characterized in that, the blood detection device further includes a focusing lens, the focusing lens is arranged on the optical path of the laser emitter and is located between the laser emitter and the blood sample clamping space.

5. The blood detection device according to claim 1, characterized in that, the laser emitter is a laser emitter that emits laser with a wavelength of 633nm - 643nm, and is used to detect the types of blood components.

6. The blood detection device according to claim 1, characterized in that, The laser emitter emits laser light with a wavelength of 850 nm and is used to detect the degree of plasma chylomicron.

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