CN108852318A - It is hand-held to exhale last carbon dioxide blood-oxygen monitor - Google Patents
It is hand-held to exhale last carbon dioxide blood-oxygen monitor Download PDFInfo
- Publication number
- CN108852318A CN108852318A CN201810839277.1A CN201810839277A CN108852318A CN 108852318 A CN108852318 A CN 108852318A CN 201810839277 A CN201810839277 A CN 201810839277A CN 108852318 A CN108852318 A CN 108852318A
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- carbon dioxide
- data line
- blood
- shell
- oxygen monitor
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/082—Evaluation by breath analysis, e.g. determination of the chemical composition of exhaled breath
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
- A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
Abstract
It is held the invention discloses one kind and exhales last carbon dioxide blood-oxygen monitor, including shell, internal is cavity, and shown shell is equipped with data line connectivity port, is connected to carbon dioxide detection device and blood oxygen collection terminal by data line component；Data line component includes data line connection end, data line and data line coupling；Data line connection end, the data line connection end are installed in the data line connectivity port, and data line coupling is connected to one end of data line；Circuit board is built in the cavity of the second shell；Battery is connected to the circuit board, and fixes in the cavity.It is of the invention it is hand-held exhale last carbon dioxide blood-oxygen monitor, structure is simple, small volume, be convenient for carrying and use, in use, hand-held uses, the poor problem of detection effect caused by conduit is detached from when can keep away use.
Description
Technical field
The present invention relates to fields such as health detection equipment, Medical Devices, a kind of specially hold exhales last carbon dioxide blood oxygen
Monitor predominantly detects the gas contents such as the carbon dioxide in breathing gas, blood oxygen blood pressure etc..
Background technique
PetCO2 patient monitor is that the infrared ray for being only 4.26 μm to wavelength based on CO2 gas just has strong absorption
Principle.When sensor emission, which goes out infrared ray, passes through intermediate gas sample chamber, the CO2 gas flowed through in room sponges a part
Infrared energy shows PetCO2 waveform and value after micro computer is handled, and PetCO2 normal value is 35-45mmHg.Two
.PETCO2 waveform and the normal CO2 waveform of meaning 2.1 can generally divide four sections of four phase：(1) I phase：Air-breathing baseline, should be at zero-bit,
The beginning for being expiration is dead space gas in respiratory tract, substantially free of carbon dioxide.(2) II phase of section A-B：Expiration ascending branch,
It is more steep, it is the gaseous mixture of alveolar and dead space.B-C sections of (3) III phases：Carbon dioxide curve is horizontal or micro- upward inclination, is claimed
Expiration platform, all alveolar airs of expiratory air, PaCO2 are varied less, and platform terminal is end-tidal air-flow, are PETCO2 value,
Reflect normal expiratory airflow and the almost synchronous emptying of the alveolar of different parts close to horizontal platform wave.C-D sections of (4) VI phases：
Air-breathing decent, the rapid and steep baseline live gas that drops to of carbon dioxide curve enter air flue.2.2 exception of D-E section
CO2, which disappears, in PETCO2 waveform (1) expiration illustrates that effective pulmonary circulation and pulmonary ventilation are insufficient, or lacks, as trachea cannula is strayed into
Oesophagus, ventilation circuit Joint's falling off, loop gas leakage, soda lime tank are not closed, or because caused by dysfunction of ventilation such as apnea or
Respiratory tract obstruction can also see heartbeat stopping.(2) abnormal or big when CO2 occur in air-breathing and being sucked consciously again
The appearance of amount illustrates that Anesthesia Circuit is faulty, as flap valve closes failure.The failure of CO2 absorbent, system fresh gas flow are insufficient.(3)
Expiratory air PETCO2 Wave anomaly：1, rise elongated segment prompt because a respiratory tract high position is blocked or bronchial spasm is so that expiratory gas flow
Under, 2, the increase of alveolar plateau slope, α angle increase, illustrate to be vented alveolar because of chronic obstructive pulmonary disease or tracheospasm
Unevenness, such as asthma.3, B line sees gestation and extreme overweight people.4, C line and the angle β increase explanation have repetition sucking.5, lateral position machine
When tool is ventilated, alveolar platform is humping.
Patient's V/Q ratio without obvious heart and lung diseases is normal, and PETCO2 can reflect PaCO2 to a certain extent, can be rapid
The aeration status of reflection patient can be adjusted at any time tidal volume and respiratory rate during respiratory therapy or anesthesia surgery, guarantee
Normal ventilation avoids hyperventilation or hypoventilation.(when PETCO2 and PaCO2 are there are when difference, under sensibility and specificity
Drop, since the clinical manifestation of hypoventilation is insensitive, also without specificity) additive diagnostic value of PETCO2 waveform is higher.
End-expiratory carbon dioxide is excessively high：Its important physiological significance be alveolar hypoventilation or input alveolar CO2 increase.
Often there is the appearance of following four situation, curvilinear figure is different.1. feature is that respiratory rate and peak are mutually normal, but ETCO2 value is higher than just
Often.It is common in patient artificial ventilation, scheduled respiratory rate can be normal, but minute ventilation is too low, or since the state of an illness occurs
Variation, such as increase the generation of CO2 when malignant fever.2. breathing is slow, peak is mutually grown, and ETCO2 is higher than normal.It sees：Intracranial pressure increases
Height, the inhibition to breathing such as narcotic analgeiscs such as pethidine, fentanyl；When respiratory rate and all too low minute ventilation.③
Tachypnea, peak is mutually short, and ETCO2 is higher than normal.It sees shallow and breathes fastly, it is intended to improve the suppression that respiratory rate carrys out compensatory breathing
System, such as sucks the patient that certain volatile anesthetic has autonomous respiration；Respiratory rate is very fast when mechanical ventilation, but insufficient tidal volume.
4. a kind of serious hypoventilation worthy of vigilance shows as breathing quickly, tidal volume is extremely low, and most peaks is mutually abnormal, only exists
It presses after chest or forced expiration just visible true CO2 value.This sees oneself of more serious paralysis of respiratory muscle patient
In main breathing；Ventilator failure or circuit system have gas leakage when mechanical ventilation.Five, end-expiratory carbon dioxides are too low：Mainly lung
It steeps hyperventilation or inputs the CO2 reduction of alveolar.There are following three kinds of situations.1. respiratory rate and peak are mutually normal, but ETCO2 mistake
It is low.See the excessive mechanical ventilation of tidal volume；The low patient of shock, body temperature；Also it is found in that be in metabolic acidosis compensatory
The autonomous respiration patient of phase.2. breathing too slow, peak is mutually grown, and ETCO2 value is low.When such as artificial ventilation, frequency is excessively slow, tidal volume mistake
Greatly；It can be in central hyperventilation with central nervous system disease, also there is similar performance when in addition body temperature is too low.3. breathing
It overruns, peak is mutually short, and ETCO2 value is low.The frequency and tidal volume of artificial ventilation belongs to too high；Patient because pain, metabolic acidosis,
The hyperventilation of hypoxemia, severe states or central nervous system.Six, end-expiratory carbon dioxide measurement methods are according to gas
The method of sampling it is different, CO2 monitor has two kinds of by-pass flow type (side stream) and Mainstream Packs (main stream)：1. by-pass flow
Type is that the aspiration pump by there is flow to adjust send gas sample to infrared rays survey room, and air velocity is 20~300ml/min, institute
It needs that gas flow is small, sensitivity of measurement is high and reacts fast (85ms).By-pass flow type is compared with Mainstream Packs, and by-pass flow type does not need closed exhale
Road is sucked back, therefore can be used in the monitoring of respiration of analgesia or calm patient, CO2 concentration when monitoring patient's autonomous respiration.2. mainstream
Type is that infrared sensor is directly connected in catheter slipjoint, makes breathing gas directly and sensor contacts.Therefore, main
Flow pattern is simply possible to use in the patient of trachea cannula, it is impossible to be used in the monitoring of autonomous respiration patient.Although the general instrument method of matter can monitor simultaneously
Patient's components in exhaled air content, reaction is fast, can continuously monitor, but the instrument price is expensive, it is difficult in wide clinical application.
End expiratorycarbon dioxide is another vital sign of human body in addition to blood pressure, electrocardio, body temperature and breathing,
End expiratorycarbon dioxide waveform diagram can be good at reflecting that metabolism, breathing, circulation and anesthesia of human body etc. are raw in the process
Reason state it is normal whether, therefore, clinically will test the end expiratorycarbon dioxide monitoring program important as one, mesh
Before, there are two types of the modes that monitor end-expiratory carbon dioxide, one is with end-expiratory carbon dioxide detection module ventilator or
Anesthesia machine, however, sick Talents employing ventilator or Anesthesia machine, ventilator and Anesthesia machine function only critical or that need to anaesthetize
Complexity, structural volume is larger, common breathing patient do not need ventilator perhaps Anesthesia machine so ventilator or Anesthesia machine
Check that patient's use cost of end-expiratory carbon dioxide is larger for general, and simultaneously inconvenient, another kind detection is exhaled
The mode of last carbon dioxide is common multi-parameter monitor, i.e., desk-top patient monitor, patient monitor set blood pressure, blood oxygen, pulse frequency,
Breathing, electrocardio, body temperature etc. adult parameter, be generally used for bedside monitoring, can real-time monitoring patient physiological parameter, still remain
Equipment volume is bigger, and medical staff is using inconvenient to carry, the defects of being not suitable for transportation of patients.
In the prior art, also there is some carbon dioxide detection devices bonded, but detection device bonded, make
Used time, conduit are easy to fall off, and conduit plug is inconvenient for use, influence detection effect.
Summary of the invention
The purpose of the present invention is：A kind of hold is provided and exhales last carbon dioxide blood-oxygen monitor, to solve body in the prior art
The problem of product is larger, and conduit is easy to fall off when use, and conduit plug is inconvenient for use, influences detection effect.
Realizing the technical solution of above-mentioned purpose is：One kind is hand-held to exhale last carbon dioxide blood-oxygen monitor, including shell, in
Portion is cavity, shown shell be equipped with data line connectivity port, by data line component be connected to carbon dioxide detection device and
Blood oxygen collection terminal；Data line component includes data line connection end, data line and data line coupling；Data line connection end,
The data line connection end is installed in the data line connectivity port, and data line coupling is connected to one end of data line；Electricity
Road plate is built in the cavity of the second shell；Battery is connected to the circuit board, and fixes in the cavity.
Further, the carbon dioxide detection device includes side stream type End-tidal carbon dioxide detection device and main stream-type
End-tidal carbon dioxide detection device.
Further, built in the side stream type End-tidal carbon dioxide detection device in the cavity.
Further, the side stream type End-tidal carbon dioxide detection device is equipped with airflow hole, is set on the shell；The
One connection end is set in the airflow hole；One end of conduit and the first coupling, the conduit is connected to the side of breathing circuit
Branch road is flowed, the other end is connected to first coupling, and first coupling and the first connection end plug-in connect
It connects；Infrared detector, including transmitter and receiver；Conduit is detected, one end is connected to first connection end, and is located at institute
It states between transmitter and receiver；Aspiration pump is connected to the detection conduit.
Further, first connection end includes circumferentially distributed elastic card claw, the space which surrounds
Interior is through-hole.
Further, the front of first coupling is clamping portion, and the diameter of the middle and back of the clamping portion is less than clamping
The diameter of the front in portion.
Further, the shell is assembled by the first shell and second housing.
Further, it is described it is hand-held to exhale last carbon dioxide blood-oxygen monitor further include display screen, be set to the first shell
Body surface face, and it is connected to the circuit board.
Further, the size of the second shell is length：145-150mm, it is wide：70-80mm；It is high：25-33mm.
It is an advantage of the invention that：It is of the invention it is hand-held exhale last carbon dioxide blood-oxygen monitor, structure is simple, small volume,
It is convenient for carrying and uses, in use, hand-held uses, detection effect is poor caused by conduit is detached from when can keep away use is asked
Topic.
Detailed description of the invention
The present invention is further explained with reference to the accompanying drawings and examples.
Fig. 1 is the hand-held partial structure diagram for exhaling last carbon dioxide blood-oxygen monitor of the embodiment of the present invention 1.
Fig. 2 is the structural schematic diagram of the second housing of the embodiment of the present invention 1.
Fig. 3 is the structural schematic diagram of the first shell of the embodiment of the present invention 1.
Fig. 4 is the hand-held partial structure diagram for exhaling last carbon dioxide blood-oxygen monitor of the embodiment of the present invention 2.
Fig. 5 is the structural schematic diagram of the second housing of the embodiment of the present invention 2.
Fig. 6 is the structural schematic diagram of the connection end of the embodiment of the present invention.
Fig. 7 is the structural schematic diagram of the coupling of the embodiment of the present invention 2.
Wherein,
3 hand-held exhale last carbon dioxide blood-oxygen monitor；31 first shells；
32 second housings；33 electric wires；
34 batteries；35 display screens；
361 data line connectivity ports；362 airflow holes；
371 first cavitys；372 second cavitys；
38 infrared detectors；39 detection conduits；
30 aspiration pumps；3101 first connection ends；
3102 first couplings.
Specific embodiment
The explanation of following embodiment is to can be used to the particular implementation of implementation to illustrate the present invention with reference to additional schema
Example.Direction term that the present invention is previously mentioned, such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom" etc. are only
With reference to the direction of annexed drawings.Therefore, the direction term used is to illustrate and understand the present invention, rather than to limit this hair
It is bright.
Embodiment 1：In order to facilitate detection breathing gas and display corresponding data, the present embodiment discloses a kind of hold and exhales end
Carbon dioxide blood-oxygen monitor 3, the detector replace traditional large-scale human body respiration detecting instrument, is used with reaching hand-held
Purpose is more easier easily to realize the detection of the old metabolizing parameters of human metabolism, including carbon dioxide by breathing gas
Detection, blood oxygen detection etc..
As shown in Figure 1 to Figure 3, in the present embodiment, main stream-type End-tidal carbon dioxide detection device is compatible by one
Data line component exhales last carbon dioxide blood-oxygen monitor 3 to connect with hand-held.Or side stream type End-tidal carbon dioxide detection device
Last carbon dioxide blood-oxygen monitor 3 is exhaled to connect with hand-held by a compatible data line component.Data line component includes data
Line connection end, data line and data line coupling；Meanwhile it holding and exhaling last carbon dioxide blood-oxygen monitor 3 also suitable by a phase
The data line component matched is connect with blood oxygen collection terminal.In the present embodiment, blood oxygen collection terminal, the detection of side stream type End-tidal carbon dioxide
Device or main stream-type End-tidal carbon dioxide detection device are all external by data line component.
Specifically, hand-held exhale last carbon dioxide blood-oxygen monitor 3 to include shell, circuit board and battery 34.For convenience
The introducing of gas, it is hand-held to exhale last carbon dioxide blood-oxygen monitor 3 that an aspiration pump be set on airflow pipeline, to increase gas
Body flow.
The inside of shell is cavity, and the upper end is data line connectivity port 361；As shown in Figure 1, shell is by the first shell 31
Assemble with second housing 32.The size of the shell is length：145-150mm, it is wide：70-80mm；It is high：25-33mm.Shell
Inside be cavity, which is divided into the first cavity 371 and the second cavity 372, and the upper end is data line connectivity port 361.Number
The data line connection end to match with data line coupling is equipped with according to line connectivity port 361, data line connection end passes through electricity
Line is connected to circuit board.
Circuit board is built in the cavity of the shell；Battery 34 is connected to the circuit board, and is fixed on described second
In cavity 372.
Holding and exhaling last carbon dioxide blood-oxygen monitor 3 further includes display screen 35, is set to surface of shell, and be connected to the electricity
Road plate.The positive and negative anodes of battery 34 are connect by electric wire or copper sheet pin with circuit board, are mentioned for the modules work on circuit board
Power supply source.The principle of carbon dioxide detection and circuit structure have been relatively mature in the prior art, and the present embodiment is not to circuit
The circuit structure of plate makes improvements, and such as in the prior art, central controller is equipped on circuit board, and be connected to central controller
End-tidal carbon dioxide processor, blood oxygen processor and blood oxygen collection terminal.Blood oxygen collection terminal includes an acquisition end and one
Compatible data line component, acquisition end include a clamping piece, and clamping piece is built-in with data acquisition end, to trapping human
Finger, to obtain the oximetry data of human body, data line one end is another by the circuit part that is wired in clamping piece
End is equipped with blood oxygen coupling, and blood oxygen connection end is by being wired to blood oxygen processor, the model and blood oxygen of blood oxygen coupling
Connection end matches, and plug-in connects, which is the prior art, this be not described in detail specifically.Carbon dioxide
Detection and blood oxygen testing principle are consistent with the prior art, repeat no more to this.
Embodiment 2, as shown in figure 4, can be set to side stream type End-tidal carbon dioxide detection device in the present embodiment
It is hand-held to exhale inside last carbon dioxide blood-oxygen monitor 3, to facilitate the acquisition and use of data.
In the present embodiment, the side stream type End-tidal carbon dioxide detection device is equipped with airflow hole 362, the first connection end
3101, conduit and the first coupling 3102, infrared detector 38, detection conduit 39, aspiration pump 30.Airflow hole 362 is set to described
On shell；First connection end 3101 is set in the airflow hole 362；One end of the conduit is connected to the by-pass flow of breathing circuit
Branch road, the other end are connected to first coupling 3102, first coupling 3102 and first connection end
The connection of 3101 plug-ins；Infrared detector 38 includes transmitter and receiver；One end of detection conduit 39 is connected to described first
Connection end 3101, and between the transmitter and receiver；Aspiration pump 30 is connected to the detection conduit 39.First connects
Connect end 3101 and the first mutually clamping of coupling 3102.First connection end 3101 is installed in airflow hole 362, and first is external
First 3102 are connected to one end of connecting tube；As shown in Figure 6 to 7, the first connection end 3101 includes circumferentially distributed elastic card
Pawl is through-hole in the space that the elastic card claw surrounds.The front of first coupling 3102 is clamping portion, the middle and back of the clamping portion
Diameter be less than clamping portion front diameter.In use, clamping portion need to be only plugged in elastic card claw, it will after use
Clamping portion is extracted, and elastic card claw is easy to plug, and after elastic card claw is inserted into clamping portion, elastic card claw locks clamping portion.Data line
One end be equipped with data line coupling, one end is by being wired to circuit board.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.Above only
For presently preferred embodiments of the present invention, it is not intended to limit the invention, it is done within the spirit and principles of the present invention
Any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention.
Claims (9)
1. one kind is hand-held to exhale last carbon dioxide blood-oxygen monitor, which is characterized in that including
Shell, internal is cavity, and shown shell is equipped with data line connectivity port, is connected to carbon dioxide by data line component
Detection device and blood oxygen collection terminal；
Data line component includes data line connection end, data line and data line coupling；
Data line connection end, the data line connection end are installed in the data line connectivity port, and data line coupling connects
It connects in one end of data line；
Circuit board is built in the cavity of the second shell；
Battery is connected to the circuit board, and fixes in the cavity.
2. according to claim 1 hold exhales last carbon dioxide blood-oxygen monitor, which is characterized in that the carbon dioxide inspection
Surveying device includes side stream type End-tidal carbon dioxide detection device and main stream-type End-tidal carbon dioxide detection device.
3. according to claim 2 hold exhales last carbon dioxide blood-oxygen monitor, which is characterized in that the side stream type breathing
Built in last carbon dioxide detection device in the cavity.
4. according to claim 3 hold exhales last carbon dioxide blood-oxygen monitor, which is characterized in that the side stream type breathing
Last carbon dioxide detection device is equipped with
Airflow hole is set on the shell；
First connection end is set in the airflow hole；
Conduit and the first coupling, one end of the conduit are connected in the bypass flow branch of breathing circuit, and the other end is connected to institute
The first coupling is stated, first coupling is connect with the first connection end plug-in；
Infrared detector, including transmitter and receiver；
Conduit is detected, one end is connected to first connection end, and between the transmitter and receiver；
Aspiration pump is connected to the detection conduit.
5. according to claim 4 hold exhales last carbon dioxide blood-oxygen monitor, which is characterized in that first connecting pin
Head includes circumferentially distributed elastic card claw, is through-hole in the space which surrounds.
6. according to claim 5 hold exhales last carbon dioxide blood-oxygen monitor, which is characterized in that first coupling
Front be clamping portion, the diameter of the middle and back of the clamping portion is less than the diameter of the front of clamping portion.
7. according to claim 1 hold exhales last carbon dioxide blood-oxygen monitor, which is characterized in that the shell is by first
Shell and second housing assemble.
8. according to claim 1 hold exhales last carbon dioxide blood-oxygen monitor, which is characterized in that it further include display screen,
Set on the first shell surface, and it is connected to the circuit board.
9. according to claim 1 hold exhales last carbon dioxide blood-oxygen monitor, which is characterized in that the second shell
Having a size of length：8mm-16mm, wide 145-150mm, it is wide：70-80mm；It is high：25-33mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810839277.1A CN108852318A (en) | 2018-07-27 | 2018-07-27 | It is hand-held to exhale last carbon dioxide blood-oxygen monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810839277.1A CN108852318A (en) | 2018-07-27 | 2018-07-27 | It is hand-held to exhale last carbon dioxide blood-oxygen monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108852318A true CN108852318A (en) | 2018-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810839277.1A Pending CN108852318A (en) | 2018-07-27 | 2018-07-27 | It is hand-held to exhale last carbon dioxide blood-oxygen monitor |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204192594U (en) * | 2014-09-24 | 2015-03-11 | 杭州远想医疗设备有限公司 | Novel hand held end-expiratory carbon dioxide monitor |
| CN106236040A (en) * | 2016-08-16 | 2016-12-21 | 橙意家人科技（天津）有限公司 | The sleep breath monitoring equipment exhaling end carbon dioxide can be monitored |
| CN209661625U (en) * | 2018-07-27 | 2019-11-22 | 苏州创莱电子科技有限公司 | It is hand-held to exhale last carbon dioxide blood-oxygen monitor |
-
2018
- 2018-07-27 CN CN201810839277.1A patent/CN108852318A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204192594U (en) * | 2014-09-24 | 2015-03-11 | 杭州远想医疗设备有限公司 | Novel hand held end-expiratory carbon dioxide monitor |
| CN106236040A (en) * | 2016-08-16 | 2016-12-21 | 橙意家人科技（天津）有限公司 | The sleep breath monitoring equipment exhaling end carbon dioxide can be monitored |
| CN209661625U (en) * | 2018-07-27 | 2019-11-22 | 苏州创莱电子科技有限公司 | It is hand-held to exhale last carbon dioxide blood-oxygen monitor |
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