CN108020655B - Biochemical detector - Google Patents
Biochemical detector Download PDFInfo
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- CN108020655B CN108020655B CN201711480270.7A CN201711480270A CN108020655B CN 108020655 B CN108020655 B CN 108020655B CN 201711480270 A CN201711480270 A CN 201711480270A CN 108020655 B CN108020655 B CN 108020655B
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- heating
- biochemical
- detection sensor
- slot
- assembly
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- 238000010438 heat treatment Methods 0.000 claims abstract description 167
- 238000001514 detection method Methods 0.000 claims abstract description 139
- 230000013011 mating Effects 0.000 claims description 22
- 230000005484 gravity Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 230000002349 favourable effect Effects 0.000 abstract description 5
- 239000000523 sample Substances 0.000 description 7
- 230000007613 environmental effect Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 4
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010876 biochemical test Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000008103 glucose Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 235000014655 lactic acid Nutrition 0.000 description 2
- 239000004310 lactic acid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 210000003296 saliva Anatomy 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
Abstract
The invention discloses a biochemical detector, which comprises a shell, a sensor socket, a detection assembly, a heating assembly and a circuit board assembly, wherein the sensor socket is connected with the shell; the sensor socket is provided with a slot for inserting the biochemical detection sensor; the detection component is electrically connected with the circuit board component and is used for detecting biochemical signals of the biochemical detection sensor inserted into the slot; the heating component is electrically connected with the circuit board component and is used for heating the sample in the biochemical detection sensor inserted in the slot. This biochemical detector can preheat in the casing before inserting biochemical detection sensor through setting up heating element in the casing to can heat the sample wherein after inserting biochemical detection sensor to can keep warm, thereby can adapt to different ambient temperature conditions, the practicality is strong. The biochemical detector is not easily affected by the environment during detection, and is favorable for improving the accuracy and consistency of detection results compared with the traditional detection instrument.
Description
Technical Field
The invention relates to a biochemical detector.
Background
The biochemical detector is widely used in various medical and household occasions, such as a common hand-held blood glucose meter, a common lactic acid meter and the like, and is widely applied to various occasions needing to detect blood glucose or lactic acid indexes. Biochemical detectors commonly use test strips to detect physiological fluids (e.g., blood, urine, saliva, etc.). The detected physiological fluid is often stored in a test strip and discarded together with the test strip.
The traditional biochemical detectors are greatly influenced by environmental factors during detection, for example, most biochemical detectors have strict requirements on the environmental temperature, the environmental temperature is required to be controlled to be within a certain range during detection, and rapid sample loading detection is required to be performed as much as possible so as to avoid the influence of the environmental temperature. Therefore, the traditional biochemical detector is limited in application, and the problems of inaccurate detection results and poor consistency are easily caused.
Disclosure of Invention
Accordingly, it is necessary to provide a biochemical detector that can improve accuracy and consistency of detection results and reduce influence of conditions such as ambient temperature.
A biochemical detector comprises a shell, a sensor socket, a detection component, a heating component and a circuit board component; the shell is provided with an accommodating cavity, and the sensor socket, the detection assembly, the heating assembly and the circuit board assembly are positioned in the accommodating cavity; the sensor socket is provided with a slot for inserting a biochemical detection sensor; the detection component is electrically connected with the circuit board component and is used for detecting biochemical signals of the biochemical detection sensor inserted into the slot; the heating component is electrically connected with the circuit board component and is used for heating the sample in the biochemical detection sensor inserted into the slot.
In one embodiment, the heating assembly includes a heating abutting part and a heating part, the heating abutting part and the heating part are respectively disposed on two sides of the slot, the heating abutting part is used for elastically abutting against the biochemical detection sensor so that the biochemical detection sensor contacts with the heating part, the heating part is electrically connected with the circuit board assembly, and the heating part is used for heating the biochemical detection sensor.
In one embodiment, the heating abutting piece comprises a heating abutting seat and a heating abutting spring, two ends of the heating abutting spring are respectively connected with the heating abutting seat and the shell, and the heating abutting spring can shrink after the biochemical detection sensor is inserted so that two sides of the biochemical detection sensor are respectively abutted with the heating abutting seat and the heating piece.
In one embodiment, the sensor socket has a first mating portion, the first mating portion is provided with a heating port, the heating abutting spring passes through the bottom of the heating port and abuts against the heating abutting seat, the heating abutting piece is used for abutting against the biochemical detection sensor at the heating port and abutting against the heating piece, and the heating piece is used for heating the biochemical detection sensor at the heating port.
In one embodiment, the first matching parts are respectively provided with abutting guide grooves at two sides of the heating port;
the heating butt seat is provided with a bottom and guide flanges positioned on two sides of the bottom, the bottom corresponds to the position of the heating opening, one end of the heating butt spring is connected with the bottom, and the guide flanges correspond to the position of the butt guide groove and are in clearance fit with the bottom of the butt guide groove.
In one embodiment, a spring assembly column is arranged on one side of the bottom, the spring assembly column is in interference fit with the heating abutting spring, a plurality of raised strips used for abutting against the biochemical detection sensor are arranged on the other side of the bottom, the raised strips are arranged at intervals, and the end part, facing the opening end of the slot, of each raised strip is provided with a guide inclined plane.
In one embodiment, the sensor socket further comprises a second matching part positioned at one end of the first matching part, the biochemical detector is provided with an ejecting assembly on the second matching part, and the ejecting assembly is used for pushing out and/or releasing the biochemical detection sensor inserted into the slot from the slot, and the elastic abutting of the bottom to the biochemical detection sensor is released.
In one embodiment, the ejecting assembly is provided with an ejecting support, the ejecting support is provided with a pressing block, the heating abutting seat is further provided with a pressing part arranged on the outer side of the guide flange, the front end of the pressing part is provided with a guide bevel, and the pressing part is closer to the connecting part of the heating abutting spring and the shell than the guide flange; when the pop-up support moves towards the direction close to the opening end of the slot, the pressing block can press the pressing part towards the direction of the connecting part and drive the bottom to synchronously move so as to be separated from contact with the biochemical detection sensor.
In one embodiment, the ejection support has a toggle, the second mating portion has a toggle clearance, and the toggle passes through the toggle clearance; when the pop-up support moves to a direction close to the opening end of the slot, the poking device can be in contact with the end part of the biochemical detection sensor and push the biochemical detection sensor out of the slot for a certain distance.
In one embodiment, the second mating portion has a bracket guide slot, and the ejection bracket has a slider that cooperates with the bracket guide slot to slidably connect the ejection bracket to the second mating portion.
In one embodiment, the ejecting assembly is further provided with a toggle switch, the ejecting support is provided with a switch matching groove, and a fixed foot of the toggle switch is in interference fit with the switch matching groove.
In one embodiment, the ejecting assembly further comprises a poking return spring, and two ends of the poking return spring are respectively connected with the ejecting support and the shell.
In one embodiment, the first matching portion is provided with a heating element matching groove at a position close to the abutting guide groove, the heating element matching groove and the abutting guide groove form a secondary step groove, and the heating element is installed in the heating element matching groove.
In one embodiment, the biochemical detector further comprises an ejecting assembly for pushing the biochemical detection sensor inserted in the slot out of the slot and/or releasing the elastic abutment of the heating abutment against the biochemical detection sensor.
In one embodiment, the ejector assembly has an ejector bracket with a press block; when the pop-up support moves towards the direction close to the opening end of the slot, the pressing block can press the heating abutting piece and enable the heating abutting piece to be separated from contact with the biochemical detection sensor.
In one embodiment, the ejection support has a toggle, the heating abutment has a toggle clearance, the toggle passing through the toggle clearance; when the pop-up support moves to a direction close to the opening end of the slot, the poking device can be in contact with the end part of the biochemical detection sensor and push the biochemical detection sensor out of the slot for a certain distance.
In one embodiment, the heating abutment has a bracket guide slot, and the ejection bracket has a slider that cooperates with the bracket guide slot to slidingly connect the ejection bracket with the heating abutment.
In one embodiment, the ejecting assembly is further provided with a toggle switch, the ejecting support is provided with a switch matching groove, and a fixed foot of the toggle switch is in interference fit with the switch matching groove.
In one embodiment, the ejecting assembly further comprises a poking return spring, and two ends of the poking return spring are respectively connected with the ejecting support and the shell.
In one embodiment, the detection assembly has a connector electrically connected to the circuit board assembly, the connector being configured to electrically connect to an electrode connector of the biochemical detection sensor.
In one embodiment, the connector is provided with a connector seat and a conductive elastic sheet, the connector seat is mounted on the circuit board assembly, the conductive elastic sheet is mounted on the connector seat, and the conductive elastic sheet is used for being elastically abutted with an electrode connector of the biochemical detection sensor to be electrically connected.
In one embodiment, the biochemical detector further comprises a display and/or an input device, wherein the display and the circuit board assembly are/is mounted on the shell, the display is electrically connected for displaying the detection result of the detection assembly, the input device is electrically connected with the circuit board assembly, and the input device is used for inputting the heating temperature parameter and/or the heating time parameter.
In one embodiment, the housing comprises a first housing and a second housing, which cooperate to define the receiving cavity.
In one embodiment, the first housing and the second housing each have a fixed mating groove, and the sensor socket is provided with a socket fixing rib at an inlet end of the socket, and the socket fixing rib is clamped in the fixed mating groove.
This biochemical detector can preheat in the casing before inserting biochemical detection sensor through setting up heating element in the casing to can heat the sample wherein after inserting biochemical detection sensor to can keep warm, thereby can adapt to different ambient temperature conditions, the practicality is strong. The biochemical detector is not easily affected by the environment during detection, and is favorable for improving the accuracy and consistency of detection results compared with the traditional detection instrument.
Still further, can release the elasticity butt of electrically conductive shell fragment to biochemical detection sensor through setting up and popping out the subassembly, can follow the slot with inserting the biochemical detection sensor in the slot after detecting to/or release the elasticity butt of heating butt spare to biochemical detection sensor, biochemical detection sensor only relies on the inertia of release and self gravity's effect just can break away from the slot voluntarily, need not artifical the extraction, reduces the analysis that the biochemical detection sensor of manual contact receives the infection, and to reducing the wearing and tearing that the plug caused, be favorable to prolonging the life of biochemical detector.
Still further, the cooperation of sensor socket and heating element and pop out the subassembly, through structural design, sensor socket and heating element with pop out the subassembly and assemble together ingenious, not only multiple functional, structural design is exquisite moreover, occupation space is little, is favorable to realizing biochemical detector's miniatures volume and portability.
Drawings
FIG. 1 is a schematic structural view of a biochemical detector with a biochemical detection sensor inserted therein according to an embodiment;
FIG. 2 is a schematic diagram of a structure of the biochemical detector shown in FIG. 1 at another view angle;
FIG. 3 is a schematic view of the biochemical detector shown in FIG. 1 with a second housing removed;
FIG. 4 is an exploded view of the biochemical detector of FIG. 1;
FIG. 5 is a schematic view of the biochemical detector shown in FIG. 1 with the entire housing removed;
FIG. 6 is a schematic diagram of the sensor receptacle of FIG. 5;
FIG. 7 is a schematic view of a sensor receptacle of FIG. 6 from another perspective;
FIG. 8 is a schematic view of the heating abutment of FIG. 5;
FIG. 9 is a schematic view of the heating abutment shown in FIG. 8 from another perspective;
FIG. 10 is a schematic view of the structure of the ejection carriage of FIG. 5;
FIG. 11 is a schematic view of the pop-up stand of FIG. 10 from another perspective;
FIG. 12 is a schematic diagram showing the state of cooperation between a biochemical sensor to be inserted and a biochemical detector after removing a housing;
FIG. 13 is a schematic diagram showing the state of cooperation of the biochemical detector excluding the housing with the inserted biochemical detection sensor;
FIG. 14 is a partial perspective view of FIG. 13;
FIG. 15 is a cross-sectional view A-A of FIG. 13;
fig. 16 is a sectional view of B-B in fig. 13.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, 2, 3 and 4, a biochemical detector 10 according to an embodiment includes a housing 100, a sensor socket 200, a detecting assembly 300, a heating assembly 400 and a circuit board assembly 500. The housing 100 has a receiving cavity in which the sensor socket 200, the sensing assembly 300, the heating assembly 400, and the circuit board assembly 500 are disposed. Specifically, the sensor socket 200 has a slot 201 for inserting the biochemical detection sensor 20. The sensing assembly 300 is electrically connected to the circuit board assembly 500, and the sensing assembly 300 is used to sense the biochemical signals of the biochemical sensing sensor 20 inserted in the slot 201. The heating assembly 400 is electrically connected to the circuit board assembly 500, and the heating assembly 400 is used to heat the sample inserted into the biochemical detection sensor 20 in the slot 201.
The biochemical detector 10 can preheat the inside of the housing 100 before the biochemical detection sensor 20 is inserted by arranging the heating assembly 400 in the housing 100, can heat the sample in the biochemical detection sensor 20 after the biochemical detection sensor 20 is inserted, and can keep the temperature, so that the biochemical detector can adapt to different environmental temperature conditions, and has strong practicability. The biochemical detector 10 is not easily affected by the environment during detection, and is beneficial to improving the accuracy and consistency of detection results compared with the traditional detection instrument.
In one embodiment, the housing 100 includes a first housing 110 and a second housing 120. The first housing 110 and the second housing 120 cooperate to define the accommodating cavity. Further, in one embodiment, the first housing 110 and the second housing 120 have a first fixed mating groove 112 and a second fixed mating groove 122, respectively. The sensor socket 200 is provided with socket fixing ribs 210 at the inlet end of the socket 201. The socket fixing ribs 210 are clamped in the first fixing matching groove 112 and the second fixing matching groove 122 to fix the sensor socket 200 stably, so that the sensor socket 200 is prevented from loosening or being deformed under force, and the stability of the detection process is ensured.
Referring to fig. 4 and 15, in one embodiment, the detecting assembly 300 has a connector 310. The header 310 is electrically connected to the circuit board assembly 500, and may be fixedly mounted to the circuit board assembly 500 by soldering, for example. The connector 310 has a connector base 311 and a conductive dome 312. The connector base 311 is mounted on the circuit board assembly 500, and the conductive spring 312 is mounted on the connector base 311. The biochemical detection sensor 20 has an electrode tab 22. The conductive spring piece 312 is used for elastically abutting against and electrically connecting with the electrode joint 22 of the biochemical detection sensor 20. The electrode contacts 22 may be, but are not limited to, conductive contacts, conductive tabs, insert terminals, and the like. In an alternative embodiment, when the conductive spring piece 312 is in contact with the electrode connector 22 and the reaction tank 23 of the biochemical detection sensor 20 is filled with the sample, the circuit can be automatically completed, and the detection component 300 receives the electric signals detected by the detection electrode in the reaction tank 23 of the biochemical detection sensor 20 for analysis, and the detection result can be obtained through calculation.
In other embodiments, the biochemical signals of the biochemical detection sensor 20 are not limited to electrical signals, but may be optical signals, etc., and accordingly, the detection assembly 300 may be various optical detection sensors or probes, etc.
In one embodiment, the biochemical detector 100 further comprises a display 600. The display 600 is electrically connected to the circuit board assembly 500 for displaying the detection result of the detection assembly 300. In the specific embodiment shown in fig. 2, the display 600 is mounted on the first housing 110.
Further, in one embodiment, the biochemical detector 100 further comprises an input device 700. The input device 700 is electrically connected to the circuit board assembly 500, and the input device 700 is used for inputting a temperature parameter and/or a time parameter of heating and can be displayed in combination with the display 600. In the particular embodiment shown in fig. 2, the input device 700 is mounted on the first housing 110.
In addition, in other embodiments, the biochemical detector 100 also has a power supply mounting location. The power supply installation position can be provided with a rechargeable battery and is provided with a charging interface; or the power supply installation site may be opened for the insertion of a power supply device such as a dry cell. The electrode leads of the power supply mounting site are electrically connected to the circuit board assembly 500.
In one embodiment, as shown in fig. 4 and 5, the heating assembly 400 includes a heating abutment 410 and a heating member 420. The heating abutting piece 410 and the heating piece 420 are respectively arranged at two sides of the slot 201. The heating abutment 410 is used to elastically abut the biochemical detection sensor 20 so that the biochemical detection sensor 20 is in contact with the heating element 420. The heating element 420 is electrically connected with the circuit board assembly 500, and the heating element 420 is used for heating the biochemical detection sensor 20 and can be used for preserving heat, maintaining the temperature stability in the detection process, or carrying out temperature changing treatment under certain preset conditions so as to meet different detection requirements.
Further, referring to fig. 8, 9, 15 and 16, the heating abutment 410 includes a heating abutment seat 411 and a heating abutment spring 412. Both ends of the heating contact spring 412 are connected to the heating contact seat 411 and the first housing 110, respectively. The heating contact spring 412 is capable of contracting after the biochemical detection sensor 20 is inserted so that both sides of the biochemical detection sensor 20 are respectively contacted with the heating contact seat 411 and the heating member 420. In one particular embodiment, the heated abutment spring 412 is in a compressed state when the biochemical detection sensor 20 is not inserted.
As shown in fig. 6 and 7, in one embodiment, the sensor receptacle 200 has a first mating portion 220. The first fitting portion 220 is provided with a heating port 221. The heating contact spring 412 is inserted from the bottom of the heating port 221 and contacts the heating contact seat 411. The heating abutting piece 410 is used for abutting with the biochemical detection sensor 20 at the heating opening 221 and abutting the biochemical detection sensor 20 on the heating piece 420, and the heating piece 420 is used for heating the biochemical detection sensor 20 at the heating opening 221.
Further, the first fitting portion 220 is provided with abutment guide grooves 222 on both sides of the heating port 221, respectively. The heating abutment 411 is in clearance fit with the bottom of the abutment guide slot 222 such that the heating abutment 411 can move along the abutment guide slot 222. In one embodiment, the first engaging portion 220 is provided with a heating element engaging groove 223 at a position close to the abutment guide groove 222, the heating element engaging groove 223 and the abutment guide groove 222 constitute a two-stage stepped groove, and the heating element 420 is installed in the heating element engaging groove 223.
In addition, the first matching portion 220 is further provided with a positioning post 224 and a fixing hole 225. The circuit board assembly 500 is provided with positioning holes matched with the positioning posts 224. The fixing hole 225 is a threaded hole, and the first fitting portion 220 is fixed to the circuit board assembly 500 by a screw.
As shown in fig. 8 and 9, in one embodiment, the heating abutment 411 has a bottom 4111 and guide flanges 4112 located on both sides of the bottom 4111, the bottom 4111 corresponds to the position of the heating port 221, and the guide flanges 4112 correspond to the position of the abutment guide grooves 222 and are in clearance fit with the abutment guide grooves 222. The bottom 4111 is provided with a spring mounting post 4114, the spring mounting post 4114 is in interference fit with the heating abutting spring 412 to fix one end of the heating abutting spring 412, the first housing 110 is provided with a spring mounting hole 114 therein, and the other end of the heating abutting spring 412 is inserted into the spring mounting hole 114 to limit.
Further, a plurality of protruding strips 4115 for abutting against the biochemical detection sensor 20 are provided on one side of the bottom 4111. The plurality of ribs 4115 are spaced apart, and an end of each rib 4115 facing the open end of the slot 201 has a guiding ramp 4116. The guide ramp 4116 described herein includes a planar ramp, and also includes a curved ramp, such as a 1/4 cylindrical surface or an elliptical cylindrical surface, or a combination of a planar ramp and a curved ramp. By providing the plurality of protruding strips 4115, gaps are formed between the adjacent protruding strips 4115, and the gap corresponds to the reaction tank 23, the flow channel and other parts of the biochemical detection sensor 20, the detection can be effectively prevented from being affected by blockage or volume change of the flow channel or the reaction tank 23 due to the fact that the heating butt joint seat 411 extrudes the structures such as the reaction tank 23 and the flow channel when abutting against the biochemical detection sensor 20.
As shown in fig. 4, 8 and 9, the sensor socket 200 further has a second fitting part 230 at the other end of the first fitting part 220. The biochemical sensor 10 is provided with an ejector 800 at the second mating part 230. The ejector assembly 800 is movable in a direction toward or away from the open end of the socket 201 at the second mating portion 230. The ejecting assembly 800 is used for pushing the biochemical detection sensor 20 inserted into the slot 201 out of the slot 201 and/or releasing the resilient abutment of the protrusion 4115 against the biochemical detection sensor 20.
As shown in fig. 10, 11, 12, and 13, in one embodiment, the ejector assembly 800 has an ejector bracket 810. The ejection bracket 810 has a press block 811. The heating abutment 411 further has a pressing portion 4113 disposed outside the guiding flange 4112, and a guiding bevel is designed at the front end of the pressing portion 4113. The depressed portion 4113 is closer to the inner surface of the first housing 110 to which the heating abutment spring 412 is connected than the guide flange 4112. When the ejection bracket 810 moves in a direction approaching to the opening end of the slot 201, the pressing block 811 can press the pressing portion 4113 in a direction where the connection portion is located and drive the bottom portion 4111 and the protruding bar 4115 to move synchronously so as to be out of contact with the biochemical detection sensor 20.
Referring to fig. 14 and 15, the ejection bracket 810 has a toggle 812. The second mating portion 230 has a dial avoidance space 231, and the dial 812 passes through the dial avoidance space 231. When the pop-up support 810 moves in a direction approaching to the opening end of the slot 201, the shifter 812 can contact with the end 21 of the biochemical detection sensor 20 and push the biochemical detection sensor 20 out of the opening end of the slot 201 by a distance to release the elastic contact of the conductive elastic sheet 312 to the biochemical detection sensor 20, and the press block 811 is matched to release the elastic contact between the heating contact piece 410 and the biochemical detection sensor 20, so that the biochemical detection sensor 20 can be conveniently and directly poured out of the slot 201. The second fitting part 230 has a bracket guide groove 232. The ejection bracket 810 has a slider 813. The slider 813 is engaged with the holder guide groove 232 to slidably couple the ejection holder 810 to the second engagement portion 230.
In addition, the ejector assembly 800 also has a toggle switch 820. The ejection bracket 810 is provided with a switch engagement slot 814. The fixed leg 822 of the toggle switch 820 is interference fit with the switch mating slot 814.
Preferably, the ejector assembly 800 also has a toggle return spring 830. Both ends of the toggle restoring spring 830 are respectively connected with the pop-up bracket 810 and the housing 100. Specifically, the pop-up support 810 is provided with a toggle spring matching rib 815, the second housing 120 is provided with a toggle spring mounting groove, one end of the toggle return spring 830 is abutted against the toggle spring matching rib 815, and the other end of the toggle return spring 830 is mounted in the toggle spring mounting groove and abutted against the bottom of the groove.
Further, through the cooperation of heating abutting piece 410 and heating piece 420, heating abutting piece 410 is used for elasticity butt biochemical test sensor 20 so that biochemical test sensor 20 and heating piece 420 direct contact, and the fever mode of contact is more direct, and the intensification is faster, is favorable to improving detection efficiency.
By arranging the pop-up assembly 800, the biochemical detection sensor 20 inserted into the slot 201 can be pushed out from the slot 201 after detection, the elastic contact of the conductive elastic sheet 312 to the biochemical detection sensor 20 is released, and/or the elastic contact of the heating contact piece 410 to the biochemical detection sensor 20 is released, so that the biochemical detection sensor 20 can be automatically separated from the slot as long as the biochemical detection sensor relies on the action of pushed inertia and self gravity, the manual pull-out is not needed, the analysis of the biochemical detection sensor 20 affected by the manual contact is reduced, the abrasion caused by the insertion and the pull-out is reduced, and the service life of the biochemical detector is prolonged.
The sensor socket 200 is cooperatively matched with the heating assembly 300 and the ejecting assembly 800, and the sensor socket 200, the heating assembly 300 and the ejecting assembly 800 are skillfully assembled together through structural design, so that the sensor socket has the advantages of complete functions, exquisite structural design and small occupied space, and is beneficial to realizing the miniaturization and portability of a biochemical detector.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (20)
1. The biochemical detector is characterized by comprising a shell, a sensor socket, a detection assembly, a heating assembly and a circuit board assembly; the shell is provided with an accommodating cavity, and the sensor socket, the detection assembly, the heating assembly and the circuit board assembly are positioned in the accommodating cavity; the sensor socket is provided with a slot for inserting a biochemical detection sensor; the detection component is electrically connected with the circuit board component and is used for detecting biochemical signals of the biochemical detection sensor inserted into the slot; the heating component is electrically connected with the circuit board component and is used for heating a sample in the biochemical detection sensor inserted into the slot;
the heating assembly comprises a heating abutting piece and a heating piece, the heating abutting piece and the heating piece are respectively arranged on two sides of the slot, the heating abutting piece is used for elastically abutting the biochemical detection sensor so as to enable the biochemical detection sensor to be in contact with the heating piece, the heating piece is electrically connected with the circuit board assembly, and the heating piece is used for heating the biochemical detection sensor;
the heating abutting piece comprises a heating abutting seat and a heating abutting spring, two ends of the heating abutting spring are respectively connected with the heating abutting seat and the shell, and the heating abutting spring can shrink after the biochemical detection sensor is inserted so that two sides of the biochemical detection sensor are respectively abutted with the heating abutting seat and the heating piece;
the sensor socket is provided with a first matching part, the first matching part is provided with a heating port, the heating abutting spring passes through the bottom of the heating port and abuts against the heating abutting seat, the heating abutting piece is used for abutting against the biochemical detection sensor at the heating port and abutting against the biochemical detection sensor with the heating piece, and the heating piece is used for heating the biochemical detection sensor at the heating port;
the sensor further comprises an ejecting assembly, wherein the ejecting assembly is used for pushing the biochemical detection sensor inserted into the slot out of the slot and/or releasing the elastic abutting of the heating abutting piece on the biochemical detection sensor, and the biochemical detection sensor can be automatically separated from the slot by only relying on the action of the inertia and self gravity of pushing out.
2. The biochemical detector according to claim 1, wherein the first fitting portions are provided with abutting guide grooves on both sides of the heating port, respectively;
the heating butt seat is provided with a bottom and guide flanges positioned on two sides of the bottom, the bottom corresponds to the position of the heating opening, one end of the heating butt spring is connected with the bottom, and the guide flanges correspond to the position of the butt guide groove and are in clearance fit with the bottom of the butt guide groove.
3. The biochemical detector according to claim 2, wherein a spring assembly column is provided on one side of the bottom, the spring assembly column is in interference fit with the heating abutting spring, a plurality of raised strips for abutting against the biochemical detection sensor are provided on the other side of the bottom, a plurality of raised strips are arranged at intervals, and an end portion of each raised strip, which faces the opening end of the slot, is provided with a guiding inclined plane.
4. The biochemical detector according to claim 2, wherein the sensor socket further has a second mating portion at one end of the first mating portion, and the biochemical detector is provided with an ejector assembly on the second mating portion for pushing out the biochemical detection sensor inserted in the slot from the slot and/or releasing the elastic abutment of the bottom against the biochemical detection sensor.
5. The biochemical analyzer of claim 4, wherein the ejector assembly has an ejector bracket having a pressing block, the heating abutment further has a pressing portion provided outside the guide flange, a guide bevel is designed at a front end of the pressing portion, and the pressing portion is closer to a connection portion of the heating abutment spring and the housing than the guide flange; when the pop-up support moves towards the direction close to the opening end of the slot, the pressing block can press the pressing part towards the direction of the connecting part and drive the bottom to synchronously move so as to be separated from contact with the biochemical detection sensor.
6. The biochemical detector as set forth in claim 5, wherein said ejection support has a toggle, said second mating portion having a toggle clearance, said toggle passing through said toggle clearance; when the pop-up support moves to a direction close to the opening end of the slot, the poking device can be in contact with the end part of the biochemical detection sensor and push the biochemical detection sensor out of the slot for a certain distance.
7. The biochemical sensor of claim 5, wherein said second mating portion has a rack guide slot, said ejection rack has a slider, and said slider cooperates with said rack guide slot to slidably connect said ejection rack to said second mating portion.
8. The biochemical detector according to claim 5, wherein the ejection assembly further comprises a toggle switch, the ejection bracket is provided with a switch matching groove, and a fixing foot of the toggle switch is in interference fit with the switch matching groove.
9. The biochemical detector according to claim 5, wherein the ejection assembly further comprises a toggle return spring, and both ends of the toggle return spring are respectively connected with the ejection support and the housing.
10. The biochemical analyzer according to claim 2, wherein the first fitting portion is provided with a heating member fitting groove at a position close to the abutting guide groove, the heating member fitting groove and the abutting guide groove constitute a two-stage step groove, and the heating member is installed in the heating member fitting groove.
11. The biochemical detector as set forth in claim 10, wherein said ejection assembly has an ejection support having a press block; when the pop-up support moves towards the direction close to the opening end of the slot, the pressing block can press the heating abutting piece and enable the heating abutting piece to be separated from contact with the biochemical detection sensor.
12. The biochemical detector of claim 11, wherein said ejection support has a toggle, said heating abutment has a toggle clearance, said toggle passing through said toggle clearance; when the pop-up support moves to a direction close to the opening end of the slot, the poking device can be in contact with the end part of the biochemical detection sensor and push the biochemical detection sensor out of the slot for a certain distance.
13. The biochemical detector of claim 11, wherein the heating abutment has a rack guide slot, and the ejection rack has a slider that cooperates with the rack guide slot to slidingly couple the ejection rack with the heating abutment.
14. The biochemical detector according to claim 11, wherein the ejection assembly further comprises a toggle switch, the ejection bracket is provided with a switch mating groove, and a fixing leg of the toggle switch is in interference fit with the switch mating groove.
15. The biochemical detector according to claim 11, wherein the ejection assembly further comprises a toggle return spring, and both ends of the toggle return spring are respectively connected to the ejection support and the housing.
16. The biochemical detector according to any one of claims 1 to 15, wherein the detection assembly has a connector, the connector is electrically connected to the circuit board assembly, and the connector is electrically connected to an electrode connector of the biochemical detection sensor.
17. The biochemical detector according to claim 16, wherein the connector has a connector base and a conductive spring, the connector base is mounted on the circuit board assembly, the conductive spring is mounted on the connector base, and the conductive spring is used for elastically abutting against and electrically connecting with an electrode connector of the biochemical detection sensor.
18. The biochemical detector according to any one of claims 1 to 15, further comprising a display and/or an input device mounted on the housing, wherein the display is electrically connected to the circuit board assembly for displaying the detection result of the detection assembly, the input device is electrically connected to the circuit board assembly, and the input device is used for inputting a heated temperature parameter and/or a heated time parameter.
19. The biochemical detector as recited in any one of claims 1 to 15, wherein the housing includes a first housing and a second housing, the first housing and the second housing being mated to define the receiving cavity.
20. The biochemical sensor according to claim 19, wherein the first housing and the second housing each have a fixed fitting groove, and the sensor socket is provided with a socket fixing rib at an inlet end of the socket, and the socket fixing rib is clamped in the fixed fitting groove.
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| CN201711480270.7A CN108020655B (en) | 2017-12-29 | 2017-12-29 | Biochemical detector |
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| CN201711480270.7A CN108020655B (en) | 2017-12-29 | 2017-12-29 | Biochemical detector |
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| CN108020655B true CN108020655B (en) | 2024-03-15 |
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| CN109444394B (en) * | 2018-10-29 | 2022-02-11 | 深圳市国赛生物技术有限公司 | Blood gas biochemical analyzer |
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| CN108020655A (en) | 2018-05-11 |
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