CN211274691U - Micro-fluidic optical signal enhancement assembly, detection device and detection system - Google Patents
Micro-fluidic optical signal enhancement assembly, detection device and detection system Download PDFInfo
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- CN211274691U CN211274691U CN201922236494.4U CN201922236494U CN211274691U CN 211274691 U CN211274691 U CN 211274691U CN 201922236494 U CN201922236494 U CN 201922236494U CN 211274691 U CN211274691 U CN 211274691U
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Abstract
The utility model relates to a micro-fluidic optical signal reinforcing element, detection device and detecting system. Wherein, the micro-fluidic optical signal reinforcing component includes: a cavity and a flow passage; the flow passage traverses the cavity; the inner wall of the cavity is provided with a total reflection layer; the cavity is provided with a detection port; the total reflection layer is suitable for reflecting emitted light obtained by self-luminescence or excitation of the reagent flowing into the flow channel to the detection port, so that an optical signal is enhanced. Through set up the total reflection layer on the inner wall at the cavity to the light that will send in the runner all reflects the detection mouth, reaches the increase and detects the optical density of mouth, reinforcing optical signal's purpose, and then improves optical sensor's the detection accuracy, and makes it can miniaturize, the use of the wearable physiology check out test set of being convenient for.
Description
Technical Field
The utility model relates to an optical signal detection area, concretely relates to micro-fluidic optical signal reinforcing subassembly, detection device and detecting system.
Background
In the microfluidic chip, an optical detection method is generally adopted for detecting liquid, that is, emitted light obtained by self-luminescence or excitation of the liquid is detected by an optical sensor. The fluid flow in the microfluidic chip is very small, so that the light intensity of self-luminous or emitted light is very weak, and the optical sensor required to be used in the detection of the fluid flow is very high in precision, expensive in price and large in size, and is not beneficial to the use of the wearable physiological detection device.
How to solve the above problems is a need to be solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a micro-fluidic optical signal reinforcing element, detection device and detecting system to realize strengthening the purpose of the poor spontaneous luminescence of liquid or the signal intensity of exciting light among the micro-fluidic.
In order to solve the technical problem, the utility model provides a micro-fluidic optical signal reinforcing means, include:
a cavity and a flow passage;
the flow passage traverses the cavity;
the inner wall of the cavity is provided with a total reflection layer;
the cavity is provided with a detection port;
the total reflection layer is suitable for reflecting emitted light obtained by self-luminescence or excitation of the reagent flowing into the flow channel to the detection port, so that an optical signal is enhanced.
Further, the cavity is a spherical cavity.
Further, an exciting light source inlet is arranged in the cavity;
the connecting line of the exciting light source inlet and the center of the cavity and the connecting line of the detection port and the center of the cavity are arranged at an angle and are not collinear.
Furthermore, the connecting line of the exciting light source inlet and the center of the cavity is vertical to the connecting line of the detection port and the center of the cavity.
Further, the part of the flow channel flowing through the cavity is in a drum bag shape.
The utility model also provides a micro-fluidic optical detection device, which comprises an optical detection sensor probe and the micro-fluidic optical signal enhancement component;
the optical detection sensor probe is arranged at the detection port of the microfluidic optical signal enhancement assembly.
The utility model also provides a micro-fluidic optical detection system, include: a microfluidic chip and a microfluidic optical detection device as described above;
the micro-fluidic optical detection device is arranged in the micro-fluidic chip or wrapped on the micro-fluidic chip or outside the liquid pipe to be detected.
The beneficial effects of the utility model are that, the utility model provides a micro-fluidic optical signal reinforcing means, detection device and detecting system. Wherein, the micro-fluidic optical signal reinforcing component includes: a cavity and a flow passage; the flow passage traverses the cavity; the inner wall of the cavity is provided with a total reflection layer; the cavity is provided with a detection port; the total reflection layer is suitable for reflecting emitted light obtained by self-luminescence or excitation of the reagent flowing into the flow channel to the detection port, so that an optical signal is enhanced. Through set up the total reflection layer on the inner wall at the cavity to the light that will send in the runner all reflects the detection mouth, reaches the increase and detects the optical density of mouth, reinforcing optical signal's purpose, and then improves optical sensor's the detection accuracy, and makes it can miniaturize, the use of the wearable physiology check out test set of being convenient for.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of a microfluidic optical signal enhancement assembly provided by the present invention.
Fig. 2 is a schematic structural diagram of a microfluidic optical detection system provided in the present invention.
Fig. 3 is a schematic structural diagram of another microfluidic optical detection system provided in the present invention.
Fig. 4 is a schematic structural diagram of another microfluidic optical detection system provided in the present invention.
In the figure: 100-a microfluidic optical signal enhancement assembly; 110-a cavity; 111-a total reflection layer; 112-a detection port; 120-a flow channel; 130-excitation light source inlet; 200-microfluidic chip.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
Example 1
Referring to fig. 1, embodiment 1 provides a microfluidic optical signal enhancement assembly 100, including: a cavity 110 and a flow passage 120; the flow passage 120 traverses the cavity 110; a total reflection layer 111 is arranged on the inner wall of the cavity 110; the cavity 110 is provided with a detection port 112; the total reflection layer 111 is adapted to reflect self-luminescence or excitation light of the reagent flowing into the flow channel 120 to the detection port 112, thereby enhancing an optical signal. Through set up the total reflection layer on the inner wall at the cavity to the light that will send in the runner all reflects the detection mouth, reaches the increase and detects the optical density of mouth, reinforcing optical signal's purpose, and then improves optical sensor's the detection accuracy, and makes it can miniaturize, the use of the wearable physiology check out test set of being convenient for.
In the present embodiment, the cavity 110 is a spherical cavity. The cavity 110 is in a spherical shape, so that the self-luminous or exciting light of the fluid can be totally reflected on the inner wall of the sphere, and after multiple total reflections, the self-luminous or exciting light can be collected at the detection port 112, and the loss of the light is reduced.
In this embodiment, an excitation light source inlet 130 is further disposed in the cavity 110; the connecting line of the excitation light source inlet 130 and the center of the cavity 110 and the connecting line of the detection port 112 and the center of the cavity 110 are arranged at an angle and are not collinear.
In the present embodiment, a connection line between the excitation light source inlet 130 and the center of the chamber 110 is perpendicular to a connection line between the detection port 112 and the center of the chamber 110.
In this embodiment, the portion of the flow path that flows through the chamber 110 is a drum. The total amount of reagent in the chamber 110 is increased by the bulge shape, thereby achieving the purpose of enhancing the optical signal.
The utility model also provides a micro-fluidic optical detection device, which comprises an optical detection sensor probe and the micro-fluidic optical signal enhancement component 100; the optical detection sensor probe is disposed at the detection port 112 of the microfluidic optical signal enhancement assembly 100. Through set up the total reflection layer on the inner wall at the cavity to the light that will send in the runner all reflects the detection mouth, reaches the increase and detects the optical density of mouth, reinforcing optical signal's purpose, and then improves optical sensor's the detection accuracy, and makes it can miniaturize, the use of the wearable physiology check out test set of being convenient for.
The utility model also provides a micro-fluidic optical detection system, include: a microfluidic chip 200 and a microfluidic optical detection device as described above; the micro-fluidic optical detection device is arranged in the micro-fluidic chip 200 or is wrapped on the micro-fluidic chip 200 or outside the liquid pipe to be detected, fig. 2 is a schematic structural diagram of the micro-fluidic optical detection device arranged in the micro-fluidic chip 200, and fig. 3 is a schematic structural diagram of the micro-fluidic optical detection device wrapped outside the liquid pipe to be detected of the micro-fluidic chip 200. Fig. 4 is a schematic structural diagram of the microfluidic chip 200 wrapped with the microfluidic optical detection device. Through set up the total reflection layer on the inner wall at the cavity to the light that will send in the runner all reflects the detection mouth, reaches the increase and detects the optical density of mouth, reinforcing optical signal's purpose, and then improves optical sensor's the detection accuracy, and makes it can miniaturize, the use of the wearable physiology check out test set of being convenient for.
To sum up, the utility model provides a micro-fluidic optical signal reinforcing subassembly, detection device and detecting system. Wherein, the micro-fluidic optical signal reinforcing component includes: a cavity and a flow passage; the flow passage traverses the cavity; the inner wall of the cavity is provided with a total reflection layer; the cavity is provided with a detection port; the total reflection layer is suitable for reflecting the self-luminescence or the excitation light of the reagent flowing into the flow channel to the detection port, so that the optical signal is enhanced. Through set up the total reflection layer on the inner wall at the cavity to the light that will send in the runner all reflects the detection mouth, reaches the increase and detects the optical density of mouth, reinforcing optical signal's purpose, and then improves optical sensor's the detection accuracy, and makes it can miniaturize, the use of the wearable physiology check out test set of being convenient for.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. A microfluidic optical signal enhancement assembly, comprising:
a cavity and a flow passage;
the flow passage traverses the cavity;
the inner wall of the cavity is provided with a total reflection layer;
the cavity is provided with a detection port;
the total reflection layer is suitable for reflecting emitted light obtained by self-luminescence or excitation of the reagent flowing into the flow channel to the detection port, so that an optical signal is enhanced.
2. The microfluidic optical signal enhancement assembly of claim 1,
the cavity is a spherical cavity.
3. The microfluidic optical signal enhancement assembly of claim 1,
an exciting light source inlet is also arranged in the cavity;
the connecting line of the exciting light source inlet and the center of the cavity and the connecting line of the detection port and the center of the cavity are arranged at an angle and are not collinear.
4. The microfluidic optical signal enhancement assembly of claim 3,
and the connecting line of the exciting light source inlet and the center of the cavity is vertical to the connecting line of the detection port and the center of the cavity.
5. The microfluidic optical signal enhancement assembly of claim 1,
the part of the flow passage flowing through the cavity is in a bulge shape.
6. A microfluidic optical detection device comprising an optical detection sensor probe and a microfluidic optical signal enhancement assembly according to any one of claims 1-5;
the optical detection sensor probe is arranged at the detection port of the microfluidic optical signal enhancement assembly.
7. A microfluidic optical detection system, comprising: a microfluidic chip and a microfluidic optical detection device according to claim 6;
the micro-fluidic optical detection device is arranged in the micro-fluidic chip or wrapped on the micro-fluidic chip or outside the liquid pipe to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922236494.4U CN211274691U (en) | 2019-12-13 | 2019-12-13 | Micro-fluidic optical signal enhancement assembly, detection device and detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922236494.4U CN211274691U (en) | 2019-12-13 | 2019-12-13 | Micro-fluidic optical signal enhancement assembly, detection device and detection system |
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| Publication Number | Publication Date |
|---|---|
| CN211274691U true CN211274691U (en) | 2020-08-18 |
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| CN201922236494.4U Active CN211274691U (en) | 2019-12-13 | 2019-12-13 | Micro-fluidic optical signal enhancement assembly, detection device and detection system |
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| CN (1) | CN211274691U (en) |
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- 2019-12-13 CN CN201922236494.4U patent/CN211274691U/en active Active
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