CN213813100U

CN213813100U - Heating device for sample pad

Info

Publication number: CN213813100U
Application number: CN202022699393.3U
Authority: CN
Inventors: 严义勇; 蔡振庆; 肖雄文; 刘自天; 邓炀
Original assignee: SHENZHEN BIOEASY BIOTECHNOLOGY CO LTD
Current assignee: SHENZHEN BIOEASY BIOTECHNOLOGY CO LTD
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-07-27
Anticipated expiration: 2030-11-19

Abstract

The utility model provides a heating device for be used for sample pad. The sample pad comprises a sample pad shell, a metal piece arranged in the sample pad shell and a liquid absorption pad arranged in the sample pad shell and in thermal contact with the metal piece; the heating device includes: a housing having an interior cavity and a heating assembly disposed in the interior cavity; when the sample pad is placed on the heating device, the heating assembly can heat the metal piece of the sample pad in a non-contact heating mode so as to heat the liquid absorbing pad through the metal piece. Through the utility model discloses a thereby heating is filled up through the imbibition of metalwork to among the sample pad to the metalwork of heating device in to the sample pad and heats for enrichment and concentration are filled up at the imbibition to the object, thereby improve the concentration of object on the imbibition pad, and then improve the sensitivity and the degree of accuracy of follow-up detection.

Description

Heating device for sample pad

Technical Field

The utility model relates to a heating device technical field particularly, relates to a heating device for be used for sample pad.

Background

At present, various heating devices exist, but no heating device is specially used for heating the liquid absorption pad of the sample pad, so that the target cannot be enriched and concentrated on the liquid absorption pad through heating, and the concentration of the target on the liquid absorption pad cannot be further improved so as to further improve the sensitivity and accuracy of subsequent detection.

Therefore, there is a need to provide a heating device for a sample pad that at least partially solves the problems of the prior art.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a heating device for sample pad aims at solving among the prior art not to be used for carrying out the heating device's that heats to the imbibition pad of sample pad problem specially.

In the present invention, a heating device for a sample pad is provided. The sample pad comprising a sample pad housing, a metallic member disposed in the sample pad housing, and a wicking pad disposed in the sample pad housing and in thermal contact with the metallic member, the heating device comprising:

a housing having an interior cavity; and

a heating assembly disposed in the inner cavity;

wherein, when the sample pad is placed on the heating device, the heating assembly can heat the metal piece of the sample pad in a non-contact heating manner so as to heat the imbibing pad through the metal piece.

Preferably, the non-contact heating mode is an electromagnetic induction heating mode.

Preferably, the heating device further comprises a temperature sensor configured for determining the temperature of the absorbent pad.

Preferably, the temperature sensor is disposed in the lumen, the heating device further comprises a patch disposed on the heating assembly, the patch being located between the heating assembly and the sample pad when the sample pad is placed on the heating device, the temperature sensor further being configured for sensing a temperature of the patch and determining a temperature of the blotter pad from the sensed temperature of the patch.

Preferably, the temperature sensor is an infrared temperature sensor arranged in the housing, and the housing is provided with a housing hollow part for enabling a light path of the infrared temperature sensor to pass through to reach the liquid absorption pad to sense the temperature of the liquid absorption pad or reach the metal piece to determine the temperature of the liquid absorption pad.

Preferably, the heating device further comprises a base on which the housing is mounted and which has an extension projecting relative to the housing, the extension having a recess or hollowed-out portion for placing a sample cup.

Preferably, the heating assembly includes a heating unit and a power supply unit, the heating unit being connected with the power supply unit and being supplied with power by the power supply unit.

Preferably, the heating unit includes a coil and a coil support, the coil being disposed on and supported by the coil support.

Preferably, the power supply unit includes a rechargeable battery disposed in the inner cavity of the housing and a charging interface disposed on an outer surface of the housing.

Preferably, the heating device further comprises a circuit board disposed in the interior cavity of the housing.

Through the utility model discloses a heating device heats the metalwork in the sample pad so as to heat the imbibition pad in the sample pad through the metalwork, make the enrichment and the concentration of target object on the imbibition pad, volatilize the liquid flow that the solvent leads to simultaneously, can further improve the adsorption capacity of imbibition pad, thereby improve the concentration of target object on the imbibition pad, and then improve the sensitivity and the degree of accuracy of follow-up detection; and can make through the mode of non-contact heating to the metalwork heating of setting in sample pad casing and then heat through the metalwork to the imbibition pad through the heating element heating of setting in heating device's casing to can not exert an influence to sample pad casing and heating device's casing at this in-process, can not influence normal use.

Drawings

Non-limiting and non-exhaustive embodiments of the present invention are described, by way of example, with reference to the following drawings, in which:

fig. 1 is a schematic perspective view of a heating device according to an embodiment of the present invention;

fig. 2 is a diagram of a state of use of a heating device according to an embodiment of the invention, wherein a sample pad is placed in a sample cup;

fig. 3 is a schematic perspective view of a heating device according to an embodiment of the present invention, wherein a sample cup is placed in a recess; and

fig. 4 is an exploded perspective view of a heating device according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the present invention, a heating device for a sample pad is provided. Fig. 1 is a schematic perspective view of a heating device 100 according to an embodiment of the present invention. Fig. 2 is a diagram illustrating a state of use of the heating apparatus 100 according to an embodiment of the present invention, in which the sample pad 200 is placed in the sample cup 130. Fig. 3 is a schematic perspective view of the heating device 100 according to an embodiment of the present invention, wherein the sample cup 130 is placed in the groove 1511. Fig. 4 is an exploded perspective view of the heating device 100 according to an embodiment of the present invention.

A heating apparatus 100 according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 4.

The heating device 100 provided by the present invention is used for the sample pad 200 as shown in fig. 2. As shown in fig. 2, the sample pad 200 includes a sample pad housing 210, a metallic member (not shown) disposed in the sample pad housing 210, and a wicking pad 220 disposed in the sample pad housing 210 and in thermal contact with the metallic member. One end of the pipette pad 220 protrudes from the housing 210 for aspirating a sample fluid to be tested. The heating device 100 is used to heat the metal member of the sample pad 200 so that the pipette pad 220 is heated by the metal member.

As shown in fig. 1 to 4, the heating apparatus 100 includes a housing 110 and a heating assembly. The housing 110 has an inner cavity that may form a receiving space to receive components of the heating assembly and the like of the heating apparatus 100. Specifically, the housing 110 is generally box-shaped. The heating assembly is disposed in the interior cavity of the housing 110. When the sample pad 200 is placed on the heating device 100, the heating assembly can heat the metal member of the sample pad 200 in a non-contact heating manner so as to heat the pipette pad 220 through the metal member. The non-contact heating method is a method in which the heating unit heats the metal member of the sample pad 200 without contacting the metal member of the sample pad 200, and may be, for example, an electromagnetic induction heating method.

In this embodiment, the heating assembly includes a heating unit and a power supply unit, the heating unit being connected to and supplied with power by the power supply unit. As shown in fig. 4, the heating unit includes a coil 121 and a coil support 122, and the coil 121 is disposed on the coil support 122 and supported by the coil support 122. The power supply unit includes a rechargeable battery 123 disposed in the inner cavity of the case 110 and electrically connected with the coil 121 to supply power to the coil 121, and a charging interface (not shown) disposed on the outer surface of the case 110 and capable of being connected with an external power source through a wire to charge the rechargeable battery 123 or directly supply power to the coil 121.

Preferably, the heating device 100 further comprises a temperature sensor (not shown) configured for determining the temperature of the wicking pad 220 of the sample pad 200. Preferably, the temperature sensor is disposed in the inner cavity of the housing 110, alternatively, the temperature sensor may also be disposed outside the housing 110. By determining the temperature of the wicking pad 220 of the sample pad 200 via the temperature sensor, the real-time heating temperature of the heating apparatus 100 can be better controlled to heat and maintain the wicking pad 220 to and at a desired temperature according to the determined temperature of the wicking pad 220.

Preferably, as shown in fig. 1, 3 and 4, the heating device 100 further comprises a patch 140, the patch 140 being disposed on the heating assembly. In other embodiments not shown in the present disclosure, the patch 140 may also be disposed on a temperature sensor disposed on the heating assembly, i.e., the patch 140 is indirectly disposed on the heating assembly. When the sample pad 200 is placed on the heating device 100, the patch 140 is located between the heating assembly and the sample pad 200, and the patch 140 is configured to indirectly reflect the temperature of the wicking pad 220 of the sample pad 200. Specifically, as shown in fig. 4, the patch 140 is disposed on the coil 121 and on the outer surface 111 of the case 110, and the patch 140 has a square sheet shape. However, in other embodiments not shown, the patch 140 may be disposed entirely within the interior cavity of the housing 110, and the patch 140 may have any other suitable shape, such as a circular sheet-like shape, an elliptical sheet-like shape, a triangular sheet-like shape, and the like. Preferably, the patch 140 is provided with a protrusion 1401 at a central position thereof, and accordingly, the coil 121 is provided with a hole 1211 at a central position thereof, and the protrusion 1401 of the patch 140 can be inserted into the hole 1211 of the coil 121 to thereby position the patch 140 at the central position of the coil 121. When the heating device 100 has the patch 140, the temperature sensor may further be configured for sensing the temperature of the patch 140 and determining the temperature of the wicking pad 220 of the sample pad 200 from the sensed temperature of the patch 140. The temperature sensor may be a contact temperature sensor, i.e., the temperature sensor is in contact with the patch 140 to sense the temperature of the patch 140. Alternatively, the temperature sensor may be a non-contact temperature sensor, such as an infrared temperature sensor, whose optical path is illuminated on the patch 140 to sense the temperature of the patch 140. Specifically, when in use, the coil 121 heats the metal member in the sample pad housing by non-contact heating (e.g., electromagnetic induction), so that the pipette pad 220 is heated by the metal member, the temperature sensor senses the temperature of the patch 140 between the coil 121 and the sample pad 200, and according to the empirical value of the test, the difference between the temperature of the patch 140 and the temperature of the pipette pad 220 of the sample pad 200 can be obtained, and therefore, the temperature of the pipette pad 220 of the sample pad 200 can be determined by the difference and the temperature of the patch 140 sensed by the temperature sensor. By providing the patch 140, the temperature of the wicking pad 220 disposed in the sample pad housing 210 can be very conveniently determined even if the temperature sensor is disposed in the interior cavity of the housing 110.

In other embodiments not shown in the present disclosure, the heating device 100 may not have the patch 140, in which case, the temperature sensor may be an infrared temperature sensor disposed in the housing 110, the housing 110 is provided with a housing hollow-out portion (not shown), the sample pad housing 210 also has a sample pad hollow-out portion, and an optical path of the infrared temperature sensor can pass through the housing hollow-out portion and the sample pad hollow-out portion to reach the liquid absorption pad 220 in the sample pad 200 to sense the temperature of the liquid absorption pad 220 of the sample pad 200 or reach a metal piece in the sample pad 200 to determine the temperature of the liquid absorption pad 220 of the sample pad 200. The infrared temperature sensor senses the temperature of the metal pieces in the sample pad 200 when the light path of the infrared temperature sensor reaches the metal pieces in the sample pad 200. From the empirical values of the test, the difference between the temperature of the metal member of the sample pad 200 and the temperature of the liquid absorption pad 220 of the sample pad 200 can be obtained, and thus the temperature of the liquid absorption pad 220 of the sample pad 200 can be determined by the difference and the temperature of the metal member sensed by the temperature sensor. Alternatively, in case the heating device 100 does not have the patch 140, the magnetic field of the heating assembly may also act directly on the temperature sensing part of the temperature sensor, which is located between the heating assembly and the sample pad 200 when the sample pad 200 is placed on the heating device 100, the temperature sensor being configured to indirectly reflect the temperature of the wicking pad 220 of the sample pad 200 by sensing its own temperature. Specifically, when in use, the coil 121 heats the metal member in the sample pad housing through electromagnetic induction, so as to heat the liquid absorption pad 220 through the metal member, the temperature sensor senses the temperature of the temperature sensor itself, and according to the empirical value of the test, the difference between the temperature of the temperature sensor and the temperature of the liquid absorption pad 220 of the sample pad 200 can be obtained, and therefore, the temperature of the liquid absorption pad 220 of the sample pad 200 can be determined through the difference and the temperature of the liquid absorption pad 220 sensed by the temperature sensor.

Preferably, as shown in fig. 1 to 4, the heating apparatus 100 further includes a base 150, and the housing 110 is mounted on the base 150. The base 150 is configured to support the housing 110 and all components located in the interior cavity of the housing 110. Preferably, a plurality of first connectors are disposed on the inner surface of the housing 110, a plurality of second connectors are disposed on the inner surface of the base 150 to be matched with the first connectors, and the first connectors and the second connectors are configured to detachably combine the housing 110 and the base 150, so as to facilitate the installation and maintenance of the components in the inner cavity of the housing 110. Preferably, as shown in fig. 1 to 3, the base 150 has a protrusion 151 protruding with respect to the housing 110, and the protrusion 151 has a groove 1511 or a hollow for placing the sample cup 130. By providing the groove 1511 or the hollow portion, the sample cup 130 can be placed at a fixed position on the protrusion 151, and the sample cup 130 can be removed from the groove 1511 or the hollow portion, thereby facilitating the cleaning of the sample cup 130. In other embodiments not shown, the sample cup 130 may be mounted on the protrusion 151 in other manners, such as a snap connection, a fixed connection, etc.

Preferably, the wicking pad 220 draws the sample fluid and the wicking pad 220 is heated simultaneously. As shown in fig. 2, when the sample pad 200 is inserted into the sample cup 130, one end of the liquid absorption pad 220 of the sample pad 200 is immersed in the sample liquid, so that the liquid absorption pad 220 of the sample pad 200 can absorb the sample liquid from the sample cup 130 while the heating means 100 heats the liquid absorption pad 220. Through heating the imbibition pad 220 to sample pad 200 for the target further enrichment and concentration on the imbibition pad 220 of sample pad 200, the liquid that the solvent that volatilizees simultaneously leads to flows, can further improve the adsorption capacity of the imbibition pad 220 of sample pad 200, thereby improves the concentration of target on the imbibition pad 220 of sample pad 200, and then improves the sensitivity and the degree of accuracy of follow-up detection. In other embodiments not shown in the present invention, the liquid absorption pad 220 of the sample pad 200 absorbs the sample liquid and the liquid absorption pad 220 of the sample pad 200 is heated separately, when the heating device 100 is used, the sample liquid may be dripped through the liquid adding portion 230 of the sample pad 200, then the sample pad 200 is inserted into the sample cup 130, so that the heating device 100 heats the metal member of the sample pad 200, so as to heat the liquid absorption pad 220 through the metal member, after a predetermined time, the sample pad 200 is pulled out of the sample cup 130 after the solvent is evaporated, the sample liquid is dripped through the liquid adding portion 230 of the sample pad 200, then the sample pad 200 is inserted into the sample cup 130, so that the heating device 100 heats the metal member of the sample pad 200, so as to heat … … the liquid absorption pad 220 through the metal member, the above steps are repeated, and the target object is further enriched and concentrated on the liquid absorption pad 220 of the sample pad 200 by dripping the sample liquid and heating for a plurality of times, increasing the concentration of the target on the wicking pad 220 of the sample pad 200, and thus increasing the sensitivity and accuracy of subsequent detection.

Preferably, the heating device 100 further comprises a circuit board 124, the circuit board 124 being disposed in the interior cavity of the housing 110 and configured for integrating circuit functions of the heating device 100. The circuit board 124 may be mounted on the coil support 122 or on a separate support. Preferably, the heating device 100 further comprises keys 125 and a display 126. The button 125 is configured to control the activation and deactivation of the heating apparatus 100, and an indicator lamp (not shown) for indicating the operation state of the heating apparatus 100 may be provided on the button 125. The display 126 is configured to display information such as a heating temperature and a heating time of the heating apparatus 100. The keys 125, display 126, temperature sensor as described above, and charging interface may all be electrically connected to the circuit board 160.

A specific embodiment of heating the metal member of the sample pad 200 by using the heating device 100 of the present invention so as to heat the pipette pad 220 through the metal member will be described below.

Example 1

Placing the sample cup 130 containing the sample liquid in the groove 1511 on the base 150 of the heating device 100, inserting the sample pad 200 into the sample cup 130, so that a part of the liquid absorption pad 220 of the sample pad 200 is immersed in the sample liquid, pressing the button 125 to start the heating device 100, heating the metal piece in the sample pad shell by the heating device 100 in an electromagnetic induction mode, raising the temperature to 60 ℃, waiting for 10 minutes, so that the target is enriched and concentrated on the liquid absorption pad 220 of the sample pad 200, pulling out the sample pad 200, and obtaining the sample pad 200 enriched with the target.

The utility model has the advantages that: the heating device of the utility model is small and convenient, and has simple structure; through the utility model discloses a heating device heats the metalwork in the sample pad so as to heat the imbibition pad in the sample pad through the metalwork, make the enrichment and the concentration of target object on the imbibition pad, volatilize the liquid flow that the solvent leads to simultaneously, can further improve the adsorption capacity of imbibition pad, thereby improve the concentration of target object on the imbibition pad, and then improve the sensitivity and the degree of accuracy of follow-up detection; and can make through the mode of non-contact heating to the metalwork heating of setting in sample pad casing and then heat through the metalwork to the imbibition pad through the heating element heating of setting in heating device's casing to can not exert an influence to sample pad casing and heating device's casing at this in-process, can not influence normal use.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

While the invention has been described in connection with embodiments, it is to be understood by those skilled in the art that the foregoing description and drawings are merely illustrative and not restrictive of the broad invention, and that the invention is not limited to the disclosed embodiments. Various modifications and variations are possible without departing from the spirit of the invention.

Claims

1. A heating device for a sample pad, the sample pad comprising a sample pad housing, a metallic member disposed in the sample pad housing, and a wicking pad disposed in the sample pad housing and in thermal contact with the metallic member, the heating device comprising:

a housing having an interior cavity; and

a heating assembly disposed in the inner cavity;

2. The heating apparatus according to claim 1, wherein the non-contact heating is electromagnetic induction heating.

3. The heating device of claim 1, further comprising a temperature sensor configured for determining a temperature of the blotter pad.

4. The heating device of claim 3, wherein the temperature sensor is disposed in the lumen, the heating device further comprising a patch disposed on the heating assembly, the patch being positioned between the heating assembly and the sample pad when the sample pad is placed on the heating device, the temperature sensor further configured to sense a temperature of the patch and determine a temperature of the blotter pad from the sensed temperature of the patch.

5. The heating device of claim 3, wherein the temperature sensor is an infrared temperature sensor disposed in the housing, and the housing is provided with a housing cutout for passing a light path of the infrared temperature sensor to the blotting pad to sense the temperature of the blotting pad or to the metal piece to determine the temperature of the blotting pad.

6. A heating device as claimed in any of claims 1 to 5, further comprising a base on which the housing is mounted and which has an extension relative to the housing, the extension having a recess or hollowed out portion for receiving a sample cup.

7. The heating device according to any one of claims 1 to 5, wherein the heating assembly includes a heating unit and a power supply unit, the heating unit being connected to and supplied with power by the power supply unit.

8. The heating device of claim 7, wherein the heating unit comprises a coil and a coil support, the coil being disposed on and supported by the coil support.

9. The heating device of claim 8, wherein the power supply unit comprises a rechargeable battery disposed in the interior cavity of the housing and a charging interface disposed on an exterior surface of the housing.

10. The heating device of claim 1, further comprising a circuit board disposed in the interior cavity of the housing.