CN211796500U - Blood glucose measuring system - Google Patents
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- CN211796500U CN211796500U CN201921250428.6U CN201921250428U CN211796500U CN 211796500 U CN211796500 U CN 211796500U CN 201921250428 U CN201921250428 U CN 201921250428U CN 211796500 U CN211796500 U CN 211796500U
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Abstract
The utility model discloses a blood sugar measurement system, the utility model discloses technical scheme can be directly arrange the one end of the sensitive optic fibre of glucose in subcutaneous tissue liquid, through light source device transmission detection optical signal, makes partly detection optical signal passes through the other end incidence of the sensitive optic fibre of glucose to acquire fluorescence feedback signal, survey through first photoelectric conversion processing circuit fluorescence feedback signal generates first signal of telecommunication, surveys another part through second photoelectric conversion processing circuit detection optical signal generates the second signal of telecommunication. A blood glucose value may be calculated from the first electrical signal and the second electrical signal. It is visible, the utility model discloses technical scheme after the calibration before dispatching from the factory or the user calibrates by oneself, can be directly based on first signal of telecommunication and the second signal of telecommunication carries out blood sugar level and detects, easy operation, convenient to use.
Description
Technical Field
The utility model relates to the technical field of medical equipment, more specifically say, relate to a blood glucose measurement system.
Background
The blood sugar value of a human body is an important parameter reflecting the health state of the human body. The blood sugar value detection has important functions in physical examination, disease detection, blood sugar monitoring of special people (such as diabetes patients) and the like.
At present, the mainstream household blood sugar measuring equipment in the market needs to collect subcutaneous tissue fluid of a user through a blood collecting pen or blood collecting test paper, and detect the blood sugar value in vitro through a colorimetric method, an electrochemical method, a photometer or other methods.
Therefore, the existing household blood sugar measuring equipment needs to firstly take blood and sample, and detect the blood sugar value in vitro, so that the operation is complex and the use is inconvenient.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model discloses technical scheme provides a blood sugar measurement system need not to take a blood sample, easy operation, convenient to use.
In order to achieve the above object, the present invention provides the following technical solutions:
a blood glucose measurement system, comprising:
a light source device for emitting a detection light signal;
the light splitting assembly is used for splitting the detection light signal into two parts, and one part of the detection light signal is transmitted to subcutaneous tissue fluid through a glucose sensitive optical fiber so as to obtain a fluorescence feedback signal;
a first photoelectric conversion processing circuit for detecting the fluorescence feedback signal through the glucose-sensitive optical fiber to generate a first electrical signal;
a second photoelectric conversion processing circuit for detecting another part of the detection optical signal and generating a second electrical signal;
wherein the first electrical signal and the second electrical signal are used to calculate a blood glucose value.
Preferably, in the blood glucose measuring system, the light splitting unit includes:
the prism group comprises a first prism and a second prism which are oppositely attached;
the semi-permeable membrane is positioned on the opposite attaching surfaces of the first prism and the second prism and is used for dividing a detection optical signal emitted by the light source device into two parts, so that one part of the detection optical signal is incident to subcutaneous tissue fluid through the glucose-sensitive optical fiber to form a fluorescence feedback signal, and the other part of the detection optical signal is incident to the second photoelectric conversion processing circuit;
and the fluorescence feedback signal is transmitted to the prism group through the glucose sensitive optical fiber, and part of the fluorescence feedback signal is reflected to the first photoelectric conversion processing circuit through the semi-permeable membrane.
Preferably, in the blood glucose measuring system, the first prism and the second prism are attached to form a regular hexagonal prism; six side surfaces of the regular hexagonal prism are divided into three pairs which are opposite in pairs;
the vertical surfaces of the two opposite side surfaces of the first pair are the interfaces of the first prism and the second prism;
one side of the second pair of opposite two sides provides a part of the fluorescence feedback signal for the first photoelectric conversion processing circuit, and the other side provides the other part of the detection light signal for the second photoelectric conversion processing circuit;
one of the third pair of opposing sides receives the detection optical signal emitted by the light source device, and the other side provides a portion of the detection optical signal to the glucose-sensitive optical fiber.
Preferably, in the blood glucose measuring system, the first prism and the second prism are triangular prisms, and are bonded to form a regular quadrangular prism;
one of two opposite side surfaces of the quadrangular prism provides a part of the fluorescence feedback signal for the first photoelectric conversion processing circuit, and the other side surface provides another part of the detection optical signal for the second photoelectric conversion processing circuit;
one of the other two opposite side surfaces of the quadrangular prism receives the detection optical signal emitted by the light source device, and the other side surface provides a part of the detection optical signal for the glucose-sensitive optical fiber.
Preferably, in the blood glucose measuring system, the light source device is an LED or an LD.
Preferably, in the above blood glucose measuring system, the detection optical signal emitted by the light source device is yellow light.
Preferably, in the blood sugar measuring system, one end of the glucose-sensitive optical fiber receives a part of the detection optical signal output by the light splitting component, and the other end of the glucose-sensitive optical fiber is provided with a probe for being placed in subcutaneous tissue;
wherein the probe is provided with a probe end for being placed in subcutaneous tissue, and the length of the probe end is 4mm-5 mm.
Preferably, in the blood glucose measuring system, the blood glucose measuring system further includes:
and the MCU is connected with the first photoelectric conversion processing circuit and the second photoelectric conversion processing circuit and is used for calculating the blood sugar value according to the first electric signal and the second electric signal.
Preferably, in the blood glucose measuring system, the blood glucose measuring system further includes: the wireless communication module is used for carrying out data interaction with the terminal equipment;
wherein the wireless communication module is configured to perform at least one of the following: sending the blood sugar value to the terminal equipment for display, or receiving a control instruction issued by the terminal equipment, or sending the first electric signal and the second electric signal to the terminal equipment, so that the terminal equipment calculates the blood sugar value based on the first electric signal and the second electric signal, and displays the blood sugar value.
According to the above description, the utility model provides an among the blood sugar measurement system, can directly arrange the one end of the sensitive optic fibre of glucose in subcutaneous tissue liquid, through light source device transmission detection optical signal, make partly detection optical signal passes through the other end incidence of the sensitive optic fibre of glucose to acquire fluorescence feedback signal, survey through first photoelectric conversion processing circuit fluorescence feedback signal generates first signal of telecommunication, surveys another part through second photoelectric conversion processing circuit detection optical signal generates the second signal of telecommunication. A blood glucose value may be calculated from the first electrical signal and the second electrical signal. It is visible, the utility model discloses technical scheme after the calibration before dispatching from the factory or the user calibrates by oneself, can be directly based on first signal of telecommunication and the second signal of telecommunication carries out blood sugar level and detects, easy operation, convenient to use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a blood glucose measuring system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another blood glucose measuring system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another blood glucose measuring system according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another blood glucose measuring system according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another blood glucose measuring system according to an embodiment of the present invention;
fig. 6 is a flowchart of a method for measuring blood glucose according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a blood glucose measuring system provided by an embodiment of the present invention, the blood glucose measuring system includes: a light source device 11, the light source device 11 being configured to emit a detection light signal; the optical splitting component 12 is used for splitting the detection optical signal into two parts, wherein one part of the detection optical signal is transmitted to subcutaneous tissue fluid through the glucose sensitive optical fiber 13 to obtain a fluorescence feedback signal; a first photoelectric conversion processing circuit 14, wherein the first photoelectric conversion processing circuit 14 is configured to detect the fluorescence feedback signal through the glucose sensitive optical fiber 13 to generate a first electrical signal; a second photoelectric conversion processing circuit 15, wherein the second photoelectric conversion processing circuit 15 is configured to detect another part of the detection optical signal and generate a second electrical signal. The glucose sensitive optical fiber is an optical fiber with a glucose sensitive fluorescent material coating on the front end face, the glucose sensitive fluorescent material is a fluorescent material for detecting blood sugar conventionally, and the specific type of the glucose sensitive optical fiber is not limited specifically in the application.
Wherein the first electrical signal and the second electrical signal are used to calculate a blood glucose value. The first photoelectric conversion processing circuit 14 includes a photosensor, and can detect an optical signal and generate an electrical signal based on the detection result of the optical signal. The second photoelectric conversion processing circuit 15 includes a photosensor, and can detect an optical signal and generate an electrical signal based on the optical signal detection result. Light sensors include, but are not limited to, photocells. First photoelectric conversion processing circuit 14 with second photoelectric conversion processing circuit 15 all has integrated circuit to handle the signal of telecommunication, like analog-to-digital conversion circuit and amplifier circuit etc. and photoelectric conversion circuit's realization is conventional design, the utility model discloses technical scheme does not specifically limit to its concrete circuit structure.
The light splitting assembly 12 includes: the prism group comprises a first prism 121 and a second prism 122 which are oppositely attached; a semi-permeable membrane 123 disposed on the opposite attachment surfaces of the first prism 121 and the second prism 122, wherein the semi-permeable membrane 123 is configured to divide the detection optical signal emitted by the light source device 11 into two parts, such that a part of the detection optical signal is incident on subcutaneous tissue fluid through the glucose-sensitive optical fiber 13 to form a fluorescence feedback signal, and another part of the detection optical signal is incident on the second photoelectric conversion processing circuit 15, and the second photoelectric conversion processing circuit 15 detects the incident detection optical signal to form the second electrical signal; the semi-permeable membrane 123 is a semi-reflecting and semi-permeable membrane.
Wherein the fluorescence feedback signal is transmitted to the prism assembly 12 through the glucose-sensitive optical fiber 13, part of the fluorescence feedback signal is reflected to the first photoelectric conversion processing circuit 14 through the semi-permeable membrane 123, and the first photoelectric conversion processing circuit 14 detects the incident fluorescence feedback signal to form the first electrical signal.
In the manner shown in fig. 1, the first prism 121 and the second prism 122 are bonded to form a regular hexagonal prism; six side surfaces of the regular hexagonal prism are divided into three pairs which are opposite in pairs; the midperpendicular of the first pair of opposite two side surfaces is the interface of the first prism 121 and the second prism 122, and the semipermeable membrane 123 is arranged on the midperpendicular; a second pair of two opposite sides, one side providing a part of the fluorescence feedback signal for the first photoelectric conversion processing circuit 14, and the other side providing another part of the detection optical signal for the second photoelectric conversion processing circuit 15; of the third pair of opposing sides, one side receives the detection optical signal emitted by the light source device 11 and the other side provides a portion of the detection optical signal to the glucose sensitive optical fiber 13.
In the embodiment of the present invention, the light source device 11 may be an LED (light emitting diode) or an LD (semiconductor laser). Alternatively, the detection optical signal emitted by the light source device 11 is yellow light. The practical application process shows that when the glucose sensitive optical fiber 13 performs fluorescence feedback in subcutaneous tissue fluid during blood glucose detection, the yellow light measurement effect is better. It should be noted that, in the embodiment of the present invention, the detection optical signal is not limited to yellow light, and may also be an optical signal of other wave bands.
One end of the glucose-sensitive optical fiber 13 receives a part of the detection optical signal output by the light splitting component 12, and the other end of the glucose-sensitive optical fiber is provided with a probe which is used for being placed in subcutaneous tissues; wherein the probe is provided with a probe end for being placed in subcutaneous tissue, and the length of the probe end is 4mm-5 mm. Within the length range, the required fluorescence feedback signal can be effectively obtained through subcutaneous tissue fluid and is used for detecting the blood sugar value.
Referring to fig. 2, fig. 2 is a schematic structural diagram of another blood glucose measuring system according to an embodiment of the present invention, and the method shown in fig. 2 further includes, on the basis of the method shown in fig. 1: the MCU21 is connected to the first photoelectric conversion processing circuit 14 and the second photoelectric conversion processing circuit 15, and is configured to calculate a blood glucose level according to the first electrical signal and the second electrical signal.
Optionally, the MCU21 is further connected to the light source device 11 to control the operating state of the light source device 11. Specifically, when receiving a first control instruction, the MCU21 controls the light source device 11 to emit an optical detection signal, and when receiving a second control instruction, the MCU21 controls the light source device 11 to turn off without emitting the optical detection signal. The first control command or the second control command may be input by turning on or off a switching element connected to the MCU 21. And if the user operates the switch element to be conducted, the first control instruction is input to the MCU21, and if the user operates the switch element to be disconnected, the second control instruction is input to the MCU 21. The switch element can be a mechanical switch or a touch switch.
In another embodiment, the first control instruction or the second control instruction may be automatically obtained by a sensor, the sensor is configured to obtain a detection signal, the MCU21 determines whether the blood glucose measurement system is in a use state based on the detection signal, if so, generates the first control instruction, executes the first control instruction, controls the light source device 11 to emit the detection light signal, and if not, generates the second control instruction, executes the second control instruction, controls the light source device 11 to be turned off, and does not emit the detection light signal.
Referring to fig. 3, fig. 3 is a schematic structural diagram of another blood glucose measuring system provided by an embodiment of the present invention, the blood glucose measuring system further includes: the wireless communication module 31, the wireless communication module 31 is used for data interaction with the terminal equipment. In the embodiment shown in fig. 3, the blood glucose measuring system includes an MCU21, and the wireless communication module 31 is connected to the MCU21, but in other embodiments, the wireless communication module 31 may be directly connected to the first photoelectric conversion processing circuit 14 and the second photoelectric conversion processing circuit 15, and in this case, the MCU21 may be provided or the MCU21 may not be provided. The terminal device can be an electronic device such as a mobile phone, a tablet computer, a notebook computer or a desktop computer.
The wireless communication module 31 may be a bluetooth wireless communication module, a WIFI wireless communication module, or another wireless communication module. In the embodiment of the present invention, the specific implementation manner of the wireless communication module 31 is not limited. The wireless communication module 31 is configured to perform at least one of the following operations:
in the first aspect, the wireless communication module 31 is configured to transmit the blood glucose level to the terminal device for display. In this embodiment, the MCU21 is required to calculate the blood glucose level, and the wireless communication module 31 is connected to the MCU21 and transmits the blood glucose level to the terminal device.
In a second manner, the wireless communication module 31 is configured to receive a control instruction issued by the terminal device. In this manner, the MCU21 may be provided or not provided. The control instructions include, but are not limited to, instructions for controlling the light source device to be turned on or off.
In a third mode, the wireless communication module 31 is configured to send the first electrical signal and the second electrical signal to the terminal device, so that the terminal device calculates the blood glucose level based on the first electrical signal and the second electrical signal, and displays the blood glucose level. In this manner, the MCU21 may be provided or not provided.
When setting up wireless communication module 31 and terminal equipment and carrying out data interaction, in the mode shown in fig. 3, blood sugar measurement system includes MCU21, as mentioned above also can not set up MCU21, as shown in fig. 4 this moment, fig. 4 is the embodiment of the utility model provides a blood sugar measurement system's of another kind structure schematic diagram.
In the embodiment shown in fig. 1 to 4, the light splitting module 12 is exemplified as a regular hexagonal prism. The embodiment of the utility model provides an in, do not specifically limit to the concrete structure of light splitting component 12, as long as light splitting component 12 can realize detecting optical signal's beam splitting, realizes intrinsic optical signal (the partial detection optical signal that second photoelectric conversion circuit 15 detected) and feedback optical signal's effective detection, all belongs to the utility model discloses a protection scope. The light splitting assembly 12 may also be as shown in fig. 5, for example.
Referring to fig. 5, fig. 5 is a schematic structural diagram of another blood glucose measuring system according to an embodiment of the present invention, and in the blood glucose measuring system shown in fig. 5, the light splitting assembly 12 is a regular quadrangular prism. The light splitting assembly 12 includes a first prism 121 and a second prism 122, both of which are triangular prisms, and are bonded to form a regular quadrangular prism. One of two opposite side surfaces of the quadrangular prism provides a part of the fluorescence feedback signal for the first photoelectric conversion processing circuit 14, and the other side surface provides another part of the detection light signal for the second photoelectric conversion processing circuit 15; one of the other two opposite sides of the quadrangular prism receives the detection optical signal emitted from the light source device 11, and the other side provides a part of the detection optical signal for the glucose sensitive optical fiber 13 to be oppositely disposed.
Fig. 5 is only based on the method shown in fig. 1, and adopts a light splitting assembly 12 with a different structure, as shown in fig. 2 to 4, in the method shown in fig. 5, an MCU21 or a wireless communication module 31 may also be provided, and the implementation manner may refer to the above description, and is not described again here.
The embodiment of the utility model provides an in, the testing optical signal of light source device 11 outgoing is incited during light splitting subassembly 12, can directly incide light splitting subassembly, or inject light splitting subassembly again after adjusting the testing optical signal propagation path through first leaded light component.
The embodiment of the utility model provides an in, beam split subassembly 12 with glucose-sensitive optic fibre 13 can be directly relative setting, in order to partly detect optical signal direct transmission extremely glucose-sensitive optic fibre 13, in order to acquire fluorescence feedback signal, or beam split subassembly 12 with second leaded light component has between the glucose-sensitive optic fibre 13, beam split subassembly 12 outgoing detect optical signal passes through second leaded light component adjusts the output and detects optical signal propagation path after, and the reejection glucose-sensitive optic fibre 13, equally glucose-sensitive optic fibre 13 output fluorescence feedback signal passes through second leaded light component adjusts behind the fluorescence feedback signal propagation path, the reejection beam split subassembly 12.
In the embodiment of the present invention, the light splitting component 12 may be disposed opposite to the optical sensor of the first photoelectric conversion processing circuit 14, and a part of the fluorescence feedback signal emitted from the light splitting component 12 is directly transmitted to the first photoelectric conversion processing circuit 14; or a third light guide element may be provided between the light splitting assembly 12 and the first photoelectric conversion processing circuit 14, and a part of the fluorescence feedback signal output by the light splitting assembly 12 passes through the third light guide element, and enters the first photoelectric conversion processing circuit 14 after the propagation path of the part of the fluorescence feedback signal is adjusted.
In the embodiment of the present invention, the light splitting component 12 may be disposed opposite to the optical sensor of the second photoelectric conversion processing circuit 15, and another part of the detection optical signal emitted from the light splitting component 12 is directly transmitted to the second photoelectric conversion processing circuit 15; or a fourth light guide element may be disposed between the light splitting component 12 and the second photoelectric conversion processing circuit 15, and the portion of the detection optical signal output by the light splitting component 12 passes through the fourth light guide element, and enters the second photoelectric conversion processing circuit 15 after the propagation path of the portion of the detection optical signal is adjusted.
As described above, the light guide element may be provided to adjust the optical signal propagation path based on the layout and installation requirements of the respective devices in the blood glucose measurement system.
The embodiment of the utility model provides a blood sugar measurement system can be through the integrative encapsulation of a casing, and the casing has the window and is used for extending the sensitive optic fibre of glucose to the outside to arrange subcutaneous tissue in and carry out blood sugar monitoring. The surface of the housing where the window is provided has a retaining member through which the glucose sensitive optical fiber 13 is placed in the subcutaneous tissue. The maintaining part is used for relatively fixing the shell and the skin surface of a user when blood sugar measurement is carried out, and the maintaining part can be an adhesive layer or an annular wearing part.
In one mode, in an embodiment of the present invention, the calculation principle of the blood glucose level is as follows (1):
BG＝f(D，R) (1)
in the above formula (1), BG (blood glucose) represents a blood glucose level, D represents the first electrical signal, R represents the second electrical signal, and the blood glucose level BG is a function of the first electrical signal D and the second electrical signal R.
Can measure the known blood sugar value of multiunit based on standard equipment to through the corresponding first electric signal D of this application blood sugar measurement system under every group blood sugar value and second electric signal R, can obtain the respective corresponding first electric signal D of the different blood sugar value of multiunit like this and second electric signal R. The function f (D, R) may be determined based on a linear fitting method. Based on the determined function f (D, R), a set of first electrical signals D and second electrical signals R is obtained by the blood glucose measuring system, and the corresponding blood glucose values can be obtained by substituting the function f (D, R).
If the blood sugar measuring system is provided with the MCU to realize the automatic calculation of the blood sugar value, the blood sugar value can be calculated based on the detection data of the two photoelectric conversion processing circuits, specifically, the blood sugar value can be calculated based on the comparison table, or the blood sugar value can be calculated based on the preset functional relationship. The MCU can also send the first electric signal and the second electric signal to a terminal device in communication connection, and the blood sugar value is calculated through the terminal device.
The blood glucose measuring system may further include a display device for displaying the blood glucose value. If the MCU21 is provided, the display device can be arranged to be connected with the MCU 21. If the MCU21 is not set, the display device may be set to connect with the terminal device through the wireless communication module 31 to obtain the blood sugar value calculated by the terminal device and display the blood sugar value.
The blood glucose measuring system may further be provided with a display device for displaying the blood glucose value. If the MCU21 is arranged, the display device can be connected with the MCU 21. If the MCU21 is not set, the display device may be set to connect with a terminal device through the wireless communication module 31 to obtain and display the blood glucose value.
According to the above description, the utility model provides an among the blood sugar measurement system, can directly arrange the one end of the sensitive optic fibre of glucose 13 in subcutaneous tissue liquid, through light source device 11 transmission detection optical signal, make partly detection optical signal passes through the other end incidence of the sensitive optic fibre of glucose 13 glucose sensitive optic fibre 13 to acquire fluorescence feedback signal, survey through first photoelectric conversion processing circuit 14 fluorescence feedback signal generates first electric signal, surveys another part through second photoelectric conversion processing circuit 15 detection optical signal generates the second electric signal, can according to at last first electric signal and the second electric signal calculates the blood sugar level. It is visible, the utility model discloses technical scheme after the calibration before dispatching from the factory or the user calibrates by oneself, can be directly based on first signal of telecommunication and the second signal of telecommunication carries out blood sugar level and detects, easy operation, convenient to use.
Based on above-mentioned blood sugar measurement system embodiment, the utility model discloses another embodiment still provides a blood sugar measurement method, and this blood sugar measurement method is used for blood sugar measurement system of above-mentioned embodiment, this blood sugar measurement method is as shown in fig. 6, and fig. 6 is the utility model provides a method flow chart of a blood sugar measurement method, this blood sugar measurement method includes:
step S11: one end of the glucose sensitive fiber was placed in subcutaneous tissue fluid.
The glucose sensitive fiber may be provided with a probe at one end to facilitate its placement in subcutaneous tissue fluid.
Step S12: the detection optical signal is emitted by the light source device.
The control method of the light source device can be described with reference to the above embodiments, and is not described herein again.
Step S13: causing a portion of the detected optical signal to be incident on the glucose sensitive optical fiber through the other end of the glucose sensitive optical fiber to obtain a fluorescence feedback signal.
The beam splitting and detecting optical paths of the optical signals may be described with reference to the above embodiments, and are not described herein again.
Step S14: the fluorescence feedback signal is detected by a first photoelectric conversion processing circuit to generate a first electric signal, and another part of the detection optical signal is detected by a second photoelectric conversion processing circuit to generate a second electric signal.
Step S15: and calculating the blood sugar value according to the first electric signal and the second electric signal.
The blood glucose measuring method can be implemented by the blood glucose measuring system according to the above embodiment, where one end of a glucose-sensitive optical fiber is directly placed in subcutaneous tissue fluid, a light source device emits a detection optical signal, so that a part of the detection optical signal enters the glucose-sensitive optical fiber through the other end of the glucose-sensitive optical fiber to obtain a fluorescence feedback signal, the fluorescence feedback signal is detected by a first photoelectric conversion processing circuit to generate a first electrical signal, another part of the detection optical signal is detected by a second photoelectric conversion processing circuit to generate a second electrical signal, and finally, a blood glucose value can be calculated according to the first electrical signal and the second electrical signal. It is visible, the utility model discloses technical scheme after the calibration before dispatching from the factory or the user calibrates by oneself, can be directly based on first signal of telecommunication and the second signal of telecommunication carries out blood sugar level and detects, easy operation, convenient to use.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the blood sugar measuring method disclosed in the embodiment, since it corresponds to the blood sugar measuring system disclosed in the embodiment, the description is simple, and the relevant points can be referred to the description of the corresponding part of the blood sugar measuring system.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A blood glucose measurement system, comprising:
a light source device for emitting a detection light signal;
the light splitting assembly is used for splitting the detection light signal into two parts, and one part of the detection light signal is transmitted to subcutaneous tissue fluid through a glucose sensitive optical fiber so as to obtain a fluorescence feedback signal;
a first photoelectric conversion processing circuit for detecting the fluorescence feedback signal through the glucose-sensitive optical fiber to generate a first electrical signal;
a second photoelectric conversion processing circuit for detecting another part of the detection optical signal and generating a second electrical signal;
wherein the first electrical signal and the second electrical signal are used to calculate a blood glucose value.
2. The blood glucose measurement system of claim 1, wherein the light splitting assembly comprises:
the prism group comprises a first prism and a second prism which are oppositely attached;
the semi-permeable membrane is positioned on the opposite attaching surfaces of the first prism and the second prism and is used for dividing a detection optical signal emitted by the light source device into two parts, so that one part of the detection optical signal is incident to subcutaneous tissue fluid through the glucose-sensitive optical fiber to form a fluorescence feedback signal, and the other part of the detection optical signal is incident to the second photoelectric conversion processing circuit;
and the fluorescence feedback signal is transmitted to the prism group through the glucose sensitive optical fiber, and part of the fluorescence feedback signal is reflected to the first photoelectric conversion processing circuit through the semi-permeable membrane.
3. The blood glucose measuring system of claim 2, wherein the first prism and the second prism are attached to form a regular hexagonal prism; six side surfaces of the regular hexagonal prism are divided into three pairs which are opposite in pairs;
the vertical surfaces of the two opposite side surfaces of the first pair are the interfaces of the first prism and the second prism;
one side of the second pair of opposite two sides provides a part of the fluorescence feedback signal for the first photoelectric conversion processing circuit, and the other side provides the other part of the detection light signal for the second photoelectric conversion processing circuit;
one of the third pair of opposing sides receives the detection optical signal emitted by the light source device, and the other side provides a portion of the detection optical signal to the glucose-sensitive optical fiber.
4. The blood glucose measuring system of claim 2, wherein the first prism and the second prism are triangular prisms bonded together to form a regular quadrangular prism;
one of two opposite side surfaces of the quadrangular prism provides a part of the fluorescence feedback signal for the first photoelectric conversion processing circuit, and the other side surface provides another part of the detection optical signal for the second photoelectric conversion processing circuit;
one of the other two opposite side surfaces of the quadrangular prism receives the detection optical signal emitted by the light source device, and the other side surface provides a part of the detection optical signal for the glucose-sensitive optical fiber.
5. The blood glucose measuring system of claim 1, wherein the light source device is an LED or an LD.
6. The blood glucose measuring system of claim 1, wherein the detection light signal emitted by the light source device is yellow light.
7. The system of claim 1, wherein the glucose-sensitive optical fiber has one end for receiving a portion of the detection optical signal output by the spectroscopy assembly and another end having a probe for placement in subcutaneous tissue;
wherein the probe is provided with a probe end for being placed in subcutaneous tissue, and the length of the probe end is 4mm-5 mm.
8. The blood glucose measurement system of claim 1, further comprising:
and the MCU is connected with the first photoelectric conversion processing circuit and the second photoelectric conversion processing circuit and is used for calculating the blood sugar value according to the first electric signal and the second electric signal.
9. The blood glucose measurement system of any one of claims 1-8, further comprising: the wireless communication module is used for carrying out data interaction with the terminal equipment;
wherein the wireless communication module is configured to perform at least one of the following: sending the blood sugar value to the terminal equipment for display, or receiving a control instruction issued by the terminal equipment, or sending the first electric signal and the second electric signal to the terminal equipment, so that the terminal equipment calculates the blood sugar value based on the first electric signal and the second electric signal, and displays the blood sugar value.
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| CN201921250428.6U CN211796500U (en) | 2019-08-02 | 2019-08-02 | Blood glucose measuring system |
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| CN201921250428.6U CN211796500U (en) | 2019-08-02 | 2019-08-02 | Blood glucose measuring system |
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| CN211796500U true CN211796500U (en) | 2020-10-30 |
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