CN110169757B - Capsule type biochemical parameter acquisition device with good sealing performance and manufacturing method thereof - Google Patents

Capsule type biochemical parameter acquisition device with good sealing performance and manufacturing method thereof Download PDF

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Publication number
CN110169757B
CN110169757B CN201910586769.9A CN201910586769A CN110169757B CN 110169757 B CN110169757 B CN 110169757B CN 201910586769 A CN201910586769 A CN 201910586769A CN 110169757 B CN110169757 B CN 110169757B
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China
Prior art keywords
sealant
parameter acquisition
biochemical parameter
frame edge
injection port
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CN201910586769.9A
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CN110169757A (en
Inventor
李强华
颜丹
董青龙
李冠华
金华江
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Shenzhen Refresh Biosensor Technology Co ltd
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Shenzhen Refresh Biosensor Technology Co ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6847Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
    • A61B5/6861Capsules, e.g. for swallowing or implanting
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/74Details of notification to user or communication with user or patient ; user input means
    • A61B5/746Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms

Abstract

The invention relates to a capsule type biochemical parameter acquisition device with good sealing performance, which comprises a main shell and a biochemical parameter acquisition plate, wherein the main shell is provided with an acquisition plate window and a sealant injection port, the periphery of the acquisition plate window is provided with a horizontal frame edge and a vertical frame edge, the bottom edge of the biochemical parameter acquisition plate is pressed on the horizontal frame edge, and the periphery of the biochemical parameter acquisition plate is adjacent to the vertical frame edge; and injecting sealant from a sealant injection port, enabling the sealant to flow into a gap between the biochemical parameter acquisition plate and the horizontal frame edge and solidify, and enabling the sealant to flow into a gap between the biochemical parameter acquisition plate and the vertical frame edge and solidify. The biochemical parameter acquisition board located the acquisition board window is closely matched with the horizontal frame edge at the bottom edge, and the biochemical parameter acquisition board is closely matched with the vertical frame all around, realizes secondary seal through the sealant, and sealing performance is good, and the security is high.

Description

Capsule type biochemical parameter acquisition device with good sealing performance and manufacturing method thereof
Technical Field
The invention relates to the technical field of biochemical parameter acquisition, in particular to a capsule type biochemical parameter acquisition device with good sealing performance and a manufacturing method thereof.
Background
There are more and more capsule-type devices for biochemical parameter acquisition into the human or animal body.
The sealing performance of the biochemical parameter acquisition device in the prior art is easy to be problematic.
Disclosure of Invention
The invention aims to solve the technical problems that: the invention provides a capsule type biochemical parameter acquisition device with good sealing performance, which has good sealing performance and high safety.
The capsule type biochemical parameter acquisition device with good sealing performance comprises a main shell and a biochemical parameter acquisition plate, wherein an acquisition plate window and a sealant injection port are arranged on the main shell, a horizontal frame edge and a vertical frame edge are arranged on the periphery of the acquisition plate window, the bottom edge of the biochemical parameter acquisition plate is pressed on the horizontal frame edge, and the edge of the periphery of the biochemical parameter acquisition plate is adjacent to the vertical frame edge;
injecting sealant from a sealant injection port, and enabling the sealant to flow into a gap between the biochemical parameter acquisition plate and the horizontal frame edge and solidify; and/or the number of the groups of groups,
and injecting sealant from a sealant injection port, and enabling the sealant to flow into a gap between the biochemical parameter acquisition plate and the vertical frame edge and solidify.
Preferably, the bottom surface of the sealant injection port is leveled with the bottom surface of the horizontal frame edge or the difference is within +/-0.2 mm;
the depth design of the sealant injection port is 0.1-1 mm lower than the upper surface of the horizontal frame edge;
the width of the joint between the sealant injecting port and the collecting plate window is 0.1-1 mm.
Preferably, the bottom surface of the sealing glue injection port is higher than the horizontal plane of the horizontal frame edge, and a slope is arranged at the communication position of the sealing glue injection port and the horizontal frame edge.
Preferably, the opening of the sealant injection port is large in upper part and small in lower part; the opening of the sealant injection port is in arc transition from top to bottom.
Preferably, the sealant injection port is round, square or oval; the cross section area of the sealant injecting port is 0.2-3 mm 2
Preferably, the surface of horizontal frame limit is provided with the seal groove, and the week side of the bottom surface of biochemical parameter acquisition board is provided with the sealing strip, and the sealing strip joint is in the seal groove.
Preferably, the circumference of the sealing strip is embedded with an annular resistance wire, the sealant is conductive sealant, and the sealant is arranged by wrapping the annular resistance wire from the outside;
when the conductive sealant completely covers the annular resistance wire, the resistance of the annular resistance wire is R1, and when the conductive sealant partially falls off or does not cover the annular resistance wire, the resistance of the annular resistance wire is R2.
Preferably, the biochemical parameter acquisition device further comprises a PCB board, wherein conductive holes are formed in the horizontal frame edge, and a bottom bonding pad of the biochemical parameter acquisition board is welded on the conductive holes;
the bottom of the conductive hole is connected with the PCB board through a wire or a conductor embedded in the main shell, or,
the bottom of the conductive hole is welded with a PCB.
Preferably, the device further comprises a PCB, a PCB fixing plate and an end cover;
one end of the main shell is connected with the opening of the end cover through threads, and the main shell and the end cover form a containing cavity;
the PCB fixing plate is fixed in the accommodating cavity;
the PCB board is fixed on the PCB fixed plate.
Preferably, a cushion block is arranged at the first end of the PCB fixing plate, a first clamping groove is arranged at the second end of the PCB fixing plate, the first end of the PCB plate is supported against the cushion block, and the second end of the PCB plate is clamped in the first clamping groove;
the both sides of the inner wall of end cover are provided with the second draw-in groove, and the both sides of the first end of PCB board joint respectively in the second draw-in groove.
Preferably, the battery is a round button battery, the PCB board is provided with a first battery notch, the PCB fixing board is provided with a second battery notch, the first battery notch is arranged at the upper part of the second battery notch,
the upper part of the battery is positioned in the first battery notch, and the lower part of the battery is positioned in the second battery notch;
a battery anode bonding pad is arranged on the inner side of the first battery notch, and the anode of the battery is abutted against the battery anode bonding pad;
and a spring pin is welded on the PCB, and an elastic contact of the spring pin is elastically pressed on the bottom surface of the negative electrode of the battery.
Preferably, the main shell at the bottom of the collecting plate window is internally provided with a PCB board edge, and the periphery of the upper surface of the PCB board is propped against the bottom surface of the PCB board edge.
The invention also provides a manufacturing method of the capsule type biochemical parameter acquisition device with good sealing performance.
The manufacturing approach of a capsule type biochemical parameter acquisition device with good sealing performance, the biochemical parameter acquisition device of the capsule type includes main body and biochemical parameter acquisition board, there are acquisition board windows and sealant injecting ports on the main body, the week side of the acquisition board window has horizontal frame edge and vertical frame edge, the base edge of the biochemical parameter acquisition board presses on the horizontal frame edge, the side of the week side of the biochemical parameter acquisition board is adjacent to the vertical frame edge;
fixing the biochemical parameter acquisition plate: the collecting plate window is upward, and the biochemical parameter collecting plate is placed right above the collecting plate window and lightly pressed by the jig, so that the positions of the biochemical parameter collecting plate and the collecting plate window are matched;
a capillary gap exists between the bottom surface of the biochemical parameter acquisition plate and the joint surface of the horizontal frame edge, and when the joint surface of the side surface of the biochemical parameter acquisition plate and the vertical frame edge is provided with the capillary gap, the sealant can permeate into the capillary gap due to capillary suction force when the sealant is injected into the sealant injection port;
injecting sealant from a sealant injection port, and allowing the sealant to flow into capillary gaps between the biochemical parameter acquisition plate and the horizontal frame edge and solidify; and/or injecting the sealant from a sealant injection port, and enabling the sealant to flow into capillary gaps between the biochemical parameter acquisition plate and the vertical frame edge and solidify.
Preferably, the sealant meets the biocompatibility requirements and has a relatively low viscosity.
Preferably, the sealant is made of epoxy resin; the epoxy resin is a low-temperature curing glue cured below 150 ℃ or a normal-temperature curing glue with the epoxy resin of 20-30 ℃.
Preferably, the bottom surface of the sealant injection port is leveled with the bottom surface of the horizontal frame edge, or the difference is within +/-0.2 mm;
the depth design of the sealant injection port is 0.1-1 mm lower than the upper surface of the horizontal frame edge;
the width of the joint between the sealant injecting port and the collecting plate window is 0.1-1 mm.
Preferably, the surface of the horizontal frame edge is provided with a sealing groove, the periphery of the bottom surface of the biochemical parameter acquisition plate is provided with a sealing strip, and the sealing strip is clamped in the sealing groove;
the outer peripheral side of the sealing strip is embedded with an annular resistance wire, the sealant is conductive sealant, and the conductive sealant is arranged by wrapping the annular resistance wire from the outer side;
when the conductive sealant completely covers the annular resistance wire, the resistance of the annular resistance wire is R1, and when the conductive sealant partially falls off or does not cover the annular resistance wire, the resistance of the annular resistance wire is R2.
Preferably, the PCB comprises a PCB, wherein the first surface of the PCB is provided with components, the second surface of the PCB is provided with a probe pad, and the probe pad is welded with a probe;
the probe is contacted with the bottom contact of the biochemical parameter acquisition board to form electric connection;
the upper surface of the biochemical parameter acquisition plate is provided with a working electrode;
the working electrode is a two-electrode system or a three-electrode system.
Other elements can be arranged on the second surface of the PCB, and the elements do not influence the elastic range of the probe; in order to ensure the response sensitivity of the signal, the working electrode can be subjected to nanocrystallization.
Preferably, the device further comprises a PCB, a PCB fixing plate and an end cover;
one end of the main shell is connected with the opening of the end cover through threads, and the main shell and the end cover form a containing cavity;
the PCB fixing plate is fixed in the accommodating cavity;
the PCB board is fixed on the PCB fixed plate.
Preferably, a cushion block is arranged at the first end of the PCB fixing plate, a first clamping groove is arranged at the second end of the PCB fixing plate, the first end of the PCB plate is supported against the cushion block, and the second end of the PCB plate is clamped in the first clamping groove;
the both sides of the inner wall of end cover are provided with the second draw-in groove, and the both sides of the first end of PCB board joint respectively in the second draw-in groove.
Preferably, the battery is a round button battery, the PCB board is provided with a first battery notch, the PCB fixing board is provided with a second battery notch, the first battery notch is arranged at the upper part of the second battery notch,
the upper part of the battery is positioned in the first battery notch, and the lower part of the battery is positioned in the second battery notch;
a battery anode bonding pad is arranged on the inner side of the first battery notch, and the anode of the battery is abutted against the battery anode bonding pad;
and a spring pin is welded on the PCB, and an elastic contact of the spring pin is elastically pressed on the bottom surface of the negative electrode of the battery.
Preferably, the main shell at the bottom of the collecting plate window is internally provided with a PCB board edge, and the periphery of the upper surface of the PCB board is propped against the bottom surface of the PCB board edge.
The beneficial effects of the invention are as follows: the capsule type biochemical parameter acquisition device with good sealing performance comprises a main shell and a biochemical parameter acquisition plate, wherein an acquisition plate window and a sealant injection port are arranged on the main shell, a horizontal frame edge and a vertical frame edge are arranged on the periphery of the acquisition plate window, the bottom edge of the biochemical parameter acquisition plate is pressed on the horizontal frame edge, and the edge of the periphery of the biochemical parameter acquisition plate is adjacent to the vertical frame edge; and injecting sealant from a sealant injection port, enabling the sealant to flow into a gap between the biochemical parameter acquisition plate and the horizontal frame edge and solidify, and enabling the sealant to flow into a gap between the biochemical parameter acquisition plate and the vertical frame edge and solidify. The biochemical parameter acquisition board located the acquisition board window is closely matched with the horizontal frame edge at the bottom edge, and the biochemical parameter acquisition board is closely matched with the vertical frame all around, realizes secondary seal through the sealant, and sealing performance is good, and the security is high.
Drawings
The capsule type biochemical parameter acquisition device with good sealing performance is further described below with reference to the accompanying drawings.
FIG. 1 is an exploded view of a capsule-type biochemical parameter collecting device with good sealing performance according to the present invention.
Fig. 2 is a schematic structural view of a PCB fixing plate of the capsule-type biochemical parameter collecting device with good sealing performance according to the present invention.
Fig. 3 is a schematic structural view of a main housing of the capsule-type biochemical parameter collecting device with good sealing performance (only a part of sealing grooves are drawn).
FIG. 4 is a schematic view showing the structure of a main housing of a capsule-type biochemical parameter collecting device with good sealing performance according to an aspect of the present invention.
FIG. 5 is a schematic diagram of the structure of a biochemical acquisition board (only part of sealing strips and annular resistance wires are drawn) of a capsule-type biochemical parameter acquisition device with good sealing performance.
FIG. 6 is a schematic perspective view of a capsule-type biochemical parameter collecting device with good sealing performance.
In the figure:
1-a main housing; 11-acquisition plate window; 12, a sealant injection port; 13-horizontal frame edges; 131-sealing groove; 132-conductive holes; 14-vertical frame edges; 15-a PCB card edge; 2-a biochemical parameter acquisition board; 21-sealing strips; 211-a loop-shaped resistance wire; 3-a PCB board; 31-a first battery slot; 311-battery positive electrode pad; 4-a PCB fixing plate; 41-cushion blocks; 42-a first clamping groove; 43-second battery slot; 5-end caps; 51-a second card slot; 6-cell; 7-spring needle; 8-sealing rings.
Detailed Description
The capsule type biochemical parameter acquisition device with good sealing performance is further described below with reference to figures 1-6.
The capsule type biochemical parameter acquisition device with good sealing performance comprises a main shell 1 and a biochemical parameter acquisition board 2, wherein an acquisition board window 11 and a sealant injection port 12 are arranged on the main shell 1, a horizontal frame edge 13 and a vertical frame edge 14 are arranged on the periphery of the acquisition board window 11, the bottom edge of the biochemical parameter acquisition board 2 is pressed on the horizontal frame edge 13, and the periphery of the biochemical parameter acquisition board 2 is adjacent to the vertical frame edge 14;
injecting sealant from a sealant injection port 12, and enabling the sealant to flow into a gap between the biochemical parameter acquisition plate 2 and the horizontal frame edge 13 and solidify; and/or the number of the groups of groups,
sealant is injected from the sealant injection port 12, flows to the gap between the biochemical parameter acquisition plate 2 and the vertical frame edge 14 and is solidified.
The biochemical parameter acquisition board 2 positioned at the acquisition board window 11 is tightly matched with the horizontal frame edge 13 at the bottom edge, the periphery of the biochemical parameter acquisition board 2 is tightly matched with the vertical frame edge 14, sealant is injected through the glue injection port 12, secondary sealing is realized through the sealant, the sealing performance is good, and the safety is high.
In the embodiment, the bottom surface of the sealant injection port 12 is leveled with the bottom surface of the horizontal frame edge 13, or the difference is within +/-0.2 mm;
the depth design of the sealant injecting port 12 is 0.1-1 mm lower than the upper surface of the horizontal frame edge 13;
the width of the joint between the sealant injecting port 12 and the collecting plate window 11 is 0.1-1 mm.
In this embodiment, the sealant injection port 12 is circular, square or oval; the cross section area of the sealant injecting port 12 is 0.2-3 mm 2
In the embodiment, the opening of the sealant injection port 12 is large and small; the opening of the sealant injection port 12 is in arc transition from top to bottom.
In this embodiment, the surface of the horizontal frame edge 13 is provided with a sealing groove 131, and the circumference side of the bottom surface of the biochemical parameter acquisition board 2 is provided with a sealing strip 21, and the sealing strip 21 is clamped in the sealing groove 131.
In this embodiment, the annular resistor wire 211 is embedded in the circumferential side of the sealing strip 21, the sealant is conductive sealant, and the sealant is disposed around the annular resistor wire 211 from the outside.
The annular resistor wire 211 is connected with an external test circuit, when the conductive sealant completely surrounds the annular resistor wire 211, a resistance parameter value R1 in a first state can be obtained, when the conductive sealant is in shortage or leakage locally, the resistance parameter value in the first state can be changed, and the resistance parameter value R2 in the obtained state can be obtained, so that whether the conductive sealant is in shortage or leakage locally can be found timely.
In this embodiment, the resistances of the annular resistive wire 211 are unevenly disposed throughout the trace, and when the conductive sealant is partially in shortage or leakage, the region in which the shortage or damage of the sealant occurs can be rapidly determined according to the variation of the resistance parameter value in the first state.
In this embodiment, the surface of the biochemical parameter collection plate 2 is provided with a biochemical reaction membrane electrode 22. The biochemical reaction membrane electrode 22 includes a working electrode and a reference electrode.
The working electrode comprises Na + Sensor electrode, K + A sensor electrode and a PVB electrode; PVB electrode as Na + Sensor electrode, K + Reference electrode of sensor electrode, in Na + Sensor electrode, K + SensingRespectively making Na on the electrodes + Ion-selective membranes and K + Ion selective membrane capable of timely detecting Na in biological fluid + 、K + The content of the tragedy can be given to people in time for early warning, so that tragedy is avoided.
In the embodiment, the device further comprises a PCB 3, a conductive hole 132 is arranged on the horizontal frame edge 13, and a bottom bonding pad of the biochemical parameter acquisition board 2 is welded on the conductive hole 132;
the bottoms of the conductive holes 132 are connected to the PCB 3 through wires or conductors embedded in the main casing 1, or,
the bottom of the conductive hole 132 is soldered with the PCB 3.
In this embodiment, the device further comprises a PCB 3, a PCB fixing plate 4 and an end cover 5;
one end of the main shell 1 is connected with an opening of the end cover 5 through threads, a sealing ring 8 is arranged at the joint of the main shell 1 and the end cover 5, and the main shell 1 and the end cover 5 form a containing cavity;
the PCB fixing plate 4 is fixed in the accommodating cavity;
the PCB board 3 is fixed on the PCB fixing board 4.
In this embodiment, a cushion block 41 is disposed at a first end of the PCB fixing board 4, a first clamping groove 42 is disposed at a second end of the PCB fixing board 4, the first end of the PCB board 3 is supported against the cushion block 41, and the second end of the PCB board 3 is clamped in the first clamping groove 42;
the two sides of the inner wall of the end cover 5 are provided with second clamping grooves 51, and the two sides of the first end of the PCB 3 are respectively clamped in the second clamping grooves 51.
In the embodiment, the battery 6 is a round button battery, the PCB 3 is provided with a first battery notch 31, the PCB fixing plate 4 is provided with a second battery notch 43, the first battery notch 31 is arranged at the upper part of the second battery notch 43,
the upper part of the battery 6 is in the first battery notch 31, and the lower part of the battery 6 is in the second battery notch 43;
a battery positive electrode pad 311 is arranged on the inner side of the first battery notch 31, and the positive electrode of the battery 6 is abutted against the battery positive electrode pad 311;
the PCB 3 is also welded with a spring pin 7, and an elastic contact of the spring pin 7 is elastically pressed on the bottom surface of the negative electrode of the battery 6.
In this embodiment, a PCB board edge 15 is disposed in the main housing 1 at the bottom of the collection board window 11, and the upper periphery of the PCB board 3 abuts against the bottom surface of the PCB board edge 15.
The invention also provides a manufacturing method of the capsule type biochemical parameter acquisition device with good sealing performance.
The manufacturing approach of a capsule type biochemical parameter acquisition device with good sealing performance, the capsule type biochemical parameter acquisition device includes main body 1 and biochemical parameter acquisition board 2, there are acquisition board window 11 and sealant injecting port 12 on the main body 1, there are horizontal frame edge 13 and vertical frame edge 14 on the week side of the acquisition board window 11, the base edge of the biochemical parameter acquisition board 2 presses on horizontal frame edge 13, the border of the week side of the biochemical parameter acquisition board 2 is adjacent to the vertical frame edge 14;
fixing the biochemical parameter acquisition board 2: the collecting plate window 11 faces upwards, and the biochemical parameter collecting plate 2 is placed right above the collecting plate window 11 and is lightly pressed by a jig, so that the positions of the biochemical parameter collecting plate 2 and the collecting plate window 11 are matched;
a capillary gap exists between the bottom surface of the biochemical parameter acquisition plate 2 and the joint surface of the horizontal frame edge 13, a capillary gap exists between the side surface of the biochemical parameter acquisition plate 2 and the joint surface of the vertical frame edge 14, and when sealant is injected into the sealant injection port 12, the sealant can permeate into the capillary gap due to capillary suction force;
injecting sealant from a sealant injection port 12, and allowing the sealant to flow into capillary gaps between the biochemical parameter acquisition plate 2 and the horizontal frame edge 13 and solidify; and/or, injecting sealant from the sealant injecting port 12, and enabling the sealant to flow into capillary gaps between the biochemical parameter acquisition plate 2 and the vertical frame edge 14 and solidify.
In this embodiment, the sealant meets the requirement of biocompatibility, and the sealant has lower viscosity.
In this embodiment, the sealant is made of epoxy resin; the epoxy resin is a low-temperature curing glue cured below 150 ℃ or a normal-temperature curing glue with the epoxy resin of 20-30 ℃.
In the embodiment, the bottom surface of the sealant injection port 12 is leveled with the bottom surface of the horizontal frame edge 13, or the difference is within +/-0.2 mm;
the depth design of the sealant injecting port 12 is 0.1-1 mm lower than the upper surface of the horizontal frame edge 13;
the width of the joint between the sealant injecting port 12 and the collecting plate window 11 is 0.1-1 mm.
In the embodiment, a sealing groove 131 is formed in the surface of the horizontal frame edge 13, a sealing strip 21 is arranged on the periphery of the bottom surface of the biochemical parameter acquisition board 2, and the sealing strip 21 is clamped in the sealing groove 131;
the outer peripheral side of the sealing strip 21 is embedded with an annular resistance wire 211, the sealant is conductive sealant, and the conductive sealant is arranged by wrapping the annular resistance wire 211 from the outside;
when the conductive sealant completely covers the annular resistor wire 211, the resistor of the annular resistor wire 211 is R1, and when the conductive sealant partially drops or does not cover the annular resistor wire 211, the resistor of the annular resistor wire 211 is R2.
In this embodiment, the electronic device further comprises a PCB 3, wherein a first surface of the PCB 3 is provided with a component, a second surface of the PCB 3 is provided with a probe pad, and the probe pad is soldered with a probe;
the probe is contacted with the bottom contact of the biochemical parameter acquisition board 2 to form electric connection;
the upper surface of the biochemical parameter acquisition board 2 is provided with a working electrode;
the working electrode is a two-electrode system or a three-electrode system.
The second side of the PCB 3 may also have other elements that do not affect the elastic range of the probe; in order to ensure the response sensitivity of the signal, the working electrode can be subjected to nanocrystallization.
In this embodiment, the device further comprises a PCB 3, a PCB fixing plate 4 and an end cover 5;
one end of the main shell 1 is connected with an opening of the end cover 5 through threads, and the main shell 1 and the end cover 5 form a containing cavity;
the PCB fixing plate 4 is fixed in the accommodating cavity;
the PCB board 3 is fixed on the PCB fixing board 4.
In this embodiment, a cushion block 41 is disposed at a first end of the PCB fixing board 4, a first clamping groove 42 is disposed at a second end of the PCB fixing board 4, the first end of the PCB board 3 is supported against the cushion block 41, and the second end of the PCB board 3 is clamped in the first clamping groove 42;
the two sides of the inner wall of the end cover 5 are provided with second clamping grooves 51, and the two sides of the first end of the PCB 3 are respectively clamped in the second clamping grooves 51.
In the embodiment, the battery 6 is a round button battery, the PCB 3 is provided with a first battery notch 31, the PCB fixing plate 4 is provided with a second battery notch 43, the first battery notch 31 is arranged at the upper part of the second battery notch 43,
the upper part of the battery 6 is in the first battery notch 31, and the lower part of the battery 6 is in the second battery notch 43;
a battery positive electrode pad 311 is arranged on the inner side of the first battery notch 31, and the positive electrode of the battery 6 is abutted against the battery positive electrode pad 311;
the PCB 3 is also welded with a spring pin 7, and an elastic contact of the spring pin 7 is elastically pressed on the bottom surface of the negative electrode of the battery 6.
In this embodiment, a PCB board edge 15 is disposed in the main housing 1 at the bottom of the collection board window 11, and the upper periphery of the PCB board 3 abuts against the bottom surface of the PCB board edge 15.
The technical solutions of the above embodiments of the present invention can be cross-combined with each other to form a new technical solution, and in addition, all technical solutions formed by equivalent substitution fall within the scope of protection claimed by the present invention.

Claims (9)

1. The capsule type biochemical parameter acquisition device with good sealing performance comprises a main shell (1), and is characterized by further comprising a biochemical parameter acquisition plate (2), wherein an acquisition plate window (11) and a sealant injection port (12) are arranged on the main shell (1), a horizontal frame edge (13) and a vertical frame edge (14) are arranged on the periphery of the acquisition plate window (11), the bottom edge of the biochemical parameter acquisition plate (2) is pressed on the horizontal frame edge (13), and the edge of the periphery of the biochemical parameter acquisition plate (2) is adjacent to the vertical frame edge (14);
injecting sealant from the sealant injection port (12), and enabling the sealant to flow into a gap between the biochemical parameter acquisition plate (2) and the horizontal frame edge (13) and solidify; and/or the number of the groups of groups,
injecting sealant from the sealant injection port (12), and enabling the sealant to flow into a gap between the biochemical parameter acquisition plate (2) and the vertical frame edge (14) and solidify;
the sealant injection port (12) is round, square or oval; the cross section area of the sealant injecting port (12) is 0.2-3 mm 2
2. The capsule-type biochemical parameter acquisition device according to claim 1, wherein the bottom surface of the sealant injection port (12) is leveled with the bottom surface of the horizontal frame edge (13) or the difference is within +/-0.2 mm;
the depth design of the sealant injection port (12) is 0.1-1 mm lower than the upper surface of the horizontal frame edge (13);
the width of the communication part between the sealant injection port (12) and the collecting plate window (11) is 0.1-1 mm.
3. The capsule-type biochemical parameter acquisition device according to any one of claims 1 to 2, wherein the opening of the sealant injection port (12) is large at the top and small at the bottom; the opening of the sealant injecting port (12) is in circular arc transition from top to bottom.
4. A method for manufacturing a capsule-type biochemical parameter acquisition device with good sealing performance according to claim 1, wherein the capsule-type biochemical parameter acquisition device comprises a main shell (1) and a biochemical parameter acquisition plate (2), an acquisition plate window (11) and a sealant injection port (12) are arranged on the main shell (1), a horizontal frame edge (13) and a vertical frame edge (14) are arranged on the periphery of the acquisition plate window (11), the bottom edge of the biochemical parameter acquisition plate (2) is pressed on the horizontal frame edge (13), and the periphery of the biochemical parameter acquisition plate (2) is adjacent to the vertical frame edge (14);
when the biochemical parameter acquisition board (2) is fixed: the collecting plate window (11) faces upwards, and the biochemical parameter collecting plate (2) is placed right above the collecting plate window (11) and is lightly pressed by a jig, so that the positions of the biochemical parameter collecting plate (2) and the collecting plate window (11) are matched;
a capillary gap is formed between the bottom surface of the biochemical parameter acquisition plate (2) and the joint surface of the horizontal frame edge (13), a capillary gap is formed between the side surface of the biochemical parameter acquisition plate (2) and the joint surface of the vertical frame edge (14), and when sealant is dispensed to the sealant injection port (12), the sealant can permeate into the capillary gap due to capillary suction;
injecting sealant from the sealant injection port (12), and allowing the sealant to flow into capillary gaps between the biochemical parameter acquisition plate (2) and the horizontal frame edge (13) and solidify; and/or injecting sealant from the sealant injection port (12), and enabling the sealant to flow into capillary gaps between the biochemical parameter acquisition plate (2) and the vertical frame edge (14) and solidify.
5. The method for manufacturing a capsule type biochemical parameter collection device with good sealing performance according to claim 4, wherein the sealant meets the requirement of biocompatibility, and has lower viscosity.
6. The method for manufacturing the capsule-type biochemical parameter acquisition device with good sealing performance according to claim 4, wherein the material of the sealant is epoxy resin; the epoxy resin is a low-temperature curing glue cured below 150 ℃ or a normal-temperature curing glue cured at 20-30 ℃.
7. The method for manufacturing the capsule-type biochemical parameter acquisition device with good sealing performance according to claim 4, wherein the bottom surface of the sealing glue injection port (12) is leveled with the bottom surface of the horizontal frame edge (13) or the difference is within +/-0.2 mm;
the depth design of the sealant injection port (12) is 0.1-1 mm lower than the upper surface of the horizontal frame edge (13);
the width of the communication part between the sealant injection port (12) and the collecting plate window (11) is 0.1-1 mm.
8. The method for manufacturing the capsule-type biochemical parameter acquisition device with good sealing performance according to claim 4, wherein a sealing groove (131) is formed in the surface of the horizontal frame edge (13), a sealing strip (21) is arranged on the periphery of the bottom surface of the biochemical parameter acquisition plate (2), and the sealing strip (21) is clamped in the sealing groove (131);
an annular resistance wire (211) is embedded on the outer peripheral side of the sealing strip (21), the sealant is conductive sealant, and the conductive sealant is arranged by wrapping the annular resistance wire (211) from the outer side;
when the conductive sealant completely covers the annular resistor wire (211), the resistor of the annular resistor wire (211) is R1, and when the conductive sealant partially falls off or does not cover the annular resistor wire (211), the resistor of the annular resistor wire (211) is R2.
9. The method for manufacturing the capsule-type biochemical parameter acquisition device with good sealing performance according to claim 8, further comprising a PCB (3), wherein components are arranged on a first surface of the PCB (3), a probe bonding pad is arranged on a second surface of the PCB (3), and a probe is welded on the probe bonding pad;
the probe is contacted with the bottom surface contact of the biochemical parameter acquisition board (2) to form electric connection;
the upper surface of the biochemical parameter acquisition plate (2) is provided with a working electrode;
the working electrode is a two-electrode system or a three-electrode system.
CN201910586769.9A 2019-07-01 2019-07-01 Capsule type biochemical parameter acquisition device with good sealing performance and manufacturing method thereof Active CN110169757B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006230680A (en) * 2005-02-24 2006-09-07 Pentax Corp Capsule type medical device
JP2007185522A (en) * 2007-03-12 2007-07-26 Olympus Corp Capsule type medical device
CN104203074A (en) * 2012-06-08 2014-12-10 奥林巴斯医疗株式会社 Capsule-type medical device
CN109374714A (en) * 2018-10-25 2019-02-22 深圳市刷新智能电子有限公司 Assembly type biologic sensor chip
CN208847393U (en) * 2018-07-31 2019-05-10 苏州纳芯微电子股份有限公司 A kind of encapsulating structure of pressure sensor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006230680A (en) * 2005-02-24 2006-09-07 Pentax Corp Capsule type medical device
JP2007185522A (en) * 2007-03-12 2007-07-26 Olympus Corp Capsule type medical device
CN104203074A (en) * 2012-06-08 2014-12-10 奥林巴斯医疗株式会社 Capsule-type medical device
CN208847393U (en) * 2018-07-31 2019-05-10 苏州纳芯微电子股份有限公司 A kind of encapsulating structure of pressure sensor
CN109374714A (en) * 2018-10-25 2019-02-22 深圳市刷新智能电子有限公司 Assembly type biologic sensor chip

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