CN105559817A - Multifunctional medical pediatric stethoscope - Google Patents
Multifunctional medical pediatric stethoscope Download PDFInfo
- Publication number
- CN105559817A CN105559817A CN201511002844.0A CN201511002844A CN105559817A CN 105559817 A CN105559817 A CN 105559817A CN 201511002844 A CN201511002844 A CN 201511002844A CN 105559817 A CN105559817 A CN 105559817A
- Authority
- CN
- China
- Prior art keywords
- sensor
- sensors
- leading note
- registration
- guide tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B7/00—Instruments for auscultation
- A61B7/02—Stethoscopes
Abstract
The invention discloses a multifunctional medical pediatric stethoscope. An electronic timer is mounted in the middle of an annular suction disk; an auxiliary rod is mounted on the outer wall of the annular suction disk; the upper end of the annular suction disk is connected with an electronic flasher; the signal output end of the electronic flasher is connected with an earphone; a sound isolation protective ring is mounted at the tail end of the earphone; a sensor is mounted in the sound isolation protective ring and is connected with a music player through a lead wire; the audio signal output end of the music player is connected with a hearing tube through a note leading tube; first earplugs are mounted on the hearing tube; a head sleeve is mounted on the first earplugs; the audio signal output end of the music player is connected with second earplugs through an audio wire. The multifunctional medical pediatric stethoscope is provided with the music player, the stethoscope earplugs for a doctor, the earplugs for a pediatric patient and the sound isolation protective ring to distract the sense of fear of a child for the hospital and the doctor, and external interference can be better isolated.
Description
Technical field
The invention belongs to pediatric stethoscope technical field, particularly relate to a kind of multifunctional medical pediatric stethoscope.
Background technology
At present, in the diagnoses and treatment of hospital, stethoscope is the diagnostic tool often used, and stethoscope is that doctor checks patient, the important apparatus of the one diagnosed the illness.For understanding patient's beats per minute, frequency of abnormity per minute, palmic rate, breathing, borborygmus etc., but existing stethoscope is when using child, because child age is less, to stethoscope, there is terrified psychology, therefore often cry and scream when diagnosing disorderly dynamic, auscultation head not easily fixes position, affects the judgement of doctor to the state of an illness, sometimes also can go to grab stethoscope with hands, stethoscope is caused easily to come off, thus the ear of scratch doctor, reduce the work efficiency of medical worker, impact diagnosis.
Summary of the invention
The object of the present invention is to provide a kind of multifunctional medical pediatric stethoscope, be intended to solve existing pediatric stethoscope and use inconvenience, can not child attention be shifted, the problem of the low grade of efficiency.
The present invention is achieved in that this multifunctional medical pediatric stethoscope comprises: the first earplug, the second earplug, listening tube, electronic flasher, sound guide tube, headgear, sound are every guard circle, sensor, music player, auxiliary rod, electronic timer, Ring like suction disc, tone frequency channel wire;
The middle part of Ring like suction disc is provided with electronic timer, the outer wall of Ring like suction disc is provided with auxiliary rod, the upper end of Ring like suction disc is connected with electronic flasher, the signal output part of electronic flasher is connected with receiver, the end of receiver is provided with sound every guard circle, and sound is provided with sensor in guard circle; Sensor is connected with music player by wire, the audio signal output end of music player is connected with listening tube by sound guide tube, receiver is provided with the first earplug, first earplug is provided with headgear, and the audio signal output end of music player is also connected with the second earplug by tone frequency channel wire.
The present invention also takes following technical measures:
Described sound guide tube comprises tee T leading note section and straight tube leading note section, and the interface end of tee T leading note section and the interface end of straight tube leading note section are bonded together by hot melting way, and forms lapping defect at seam.
The preparation method of described sound guide tube comprises the steps:
Step one, prepare tee T leading note section and straight tube leading note section respectively by mold injects;
Step 2, the interface of the tee T leading note section prepared and straight tube leading note section be bonded together by hot melting way and form lapping defect at seam, obtaining semi-finished product sound guide tube;
The interface end of the interface end of tee T leading note section with straight tube leading note section is docked, and is placed in integrally forming mould;
To heat sulfuration to the interface end of tee T leading note section and the interface end of straight tube leading note section, make it be adhesively fixed, and form lapping defect at seam, wherein, hot pressing time is 200 seconds-300 seconds, and hot pressing temperature is 165 DEG C-185 DEG C, and hot pressing locked mode pressure is 150 tons-200 tons; The seam also comprised to tee T leading note section and straight tube leading note section supplements injects sound guide tube raw material or binding agent;
After hot pressing completes, die sinking can obtain semi-finished product sound guide tube;
Step 3, semi-finished product sound guide tube is carried out shaping and surface treatment, obtain sound guide tube;
Semi-finished product sound guide tube is put into oven for baking 3-5 hour, and baking temperature is 200 DEG C;
After baking terminates, shot blasting on surface or blasting treatment are carried out to sound guide tube;
Again oil spout process is carried out to the outer surface of the sound guide tube through shot-peening or blasting treatment.
Described music player comprises: loudspeaker, volume adjuster, display floater, operation push-button, consent;
The upper end of loudspeaker is provided with volume adjuster, and the lower end of loudspeaker is provided with operation push-button and consent, and consent is arranged on the left side of operation push-button; Display floater is arranged on the right-hand member of music player;
Described operation push-button comprises: F.F. button, rewind button, beginning button, pause button; Described display floater is touch screen, points directly above to operate player; Described player inside is also provided with time block and alarm clock module;
Described tone frequency channel wire comprises connecting line, and described connecting line one end is provided with audio jack, and described connecting line is provided with jack panel away from audio jack one end, and described jack panel is provided with at least two audio jacks; Sucker body is provided with bottom jack panel;
Jack panel is hard resin material, and audio jack comprises card agriculture jack and Flos Nelumbinis jack.
Described headgear is made up of phase change fiber or is provided with phase change fiber in headgear, and phase change fiber is made up of doughnut and the phase-change material be filled in doughnut, and the phase transition temperature of phase-change material is 0 ~ 28 DEG C;
Headgear is the interlayer that double layer material is formed, and be also provided with at least one pocket in this headgear, pocket is built with described phase change fiber.
The method of the spatial registration of described sensor comprises time alignment process and sensing system error estimation procedure, and the process of establishing of pseudo-measurement equation is only relevant to the position of target, and has nothing to do with the state such as the speed of target;
Time alignment process to complete between sensing data aligning in time, and sensors A, the metric data of sensor B under local rectangular coordinate system are respectively Y
a(t
i) and Y
b(t
i), and the sample frequency of sensors A is greater than the sample frequency of sensor B, then carry out registration by sensors A to the sampling instant of sensor B, be specially:
Adopt the temporal registration algorithm of interpolation extrapolation that the sampled data of sensors A is carried out registration to the data of sensor B, make two sensors have synchronous metric data in the spatial registration moment to same target, interpolation extrapolation temporal registration algorithm is as follows:
In sheet, each sensors observe data are carried out increment sequence by certainty of measurement at one time, then by the observed data of sensors A respectively to the time point interpolation of sensor B, extrapolation, to form a series of equally spaced target observation data, the interpolation extrapolation temporal registration algorithm that carries out of 3 conventional parabolic interpolations is adopted to obtain sensors A at t
bktime be engraved in measuring value under local rectangular coordinate system
for:
Wherein, t
bkfor the registration moment, t
k-1, t
k, t
k+1for three sampling instants that the sensors A distance registration moment is nearest, Y
a(t
k-1), Y
a(t
k), Y
a(t
k+1) be respectively the detection data to target of its correspondence;
After deadline registration, according to the registration data of sensors A and the sampled data of sensor B, adopt and measure based on the puppet under solid (EarthCenterEarthFixed, the ECEF) coordinate system of ground heart the estimation that method realizes the systematic error of sensors A and sensor B; Systematic error estimation algorithm based on ECEF is specially:
Suppose that k moment target actual position under local rectangular coordinate system is
X '
1(k)=[x '
1(k), y '
1(k), z '
1(k)]
t, measuring value corresponding under polar coordinate system is
be respectively distance, azimuth, the angle of pitch; Under being converted to local rectangular coordinate system be
X
1(k)=[x
1(k), y
1(k), z
1(k)]
t; Sensing system deviation is
be respectively the systematic error of distance, azimuth and the angle of pitch; So have
Wherein
represent observation noise, average is zero, variance is
Formula (1) can be launched by first approximation and be write as matrix form:
X′
1(k)＝X
1(k)+C(k)[ξ(k)+n(k)]\*MERGEFORMAT(3)
Wherein,
If two sensors A and B, then same public target (is set under ECEF coordinate system as X '
e=[x '
e, y '
e, z '
e]
t), can obtain
X′
e＝X
As+B
AX′
A1(k)＝X
Bs+B
BX′
B1(k)\*MERGEFORMAT(4)
B
a, B
bbe respectively the position of target under sensors A and sensor B local coordinate system be transformed into ECEF coordinate system under position time transition matrix;
The pseudo-measurement of definition is:
Z(k)＝X
Ae(k)-X
Be(k)\*MERGEFORMAT(5)
Wherein, X
ae(k)=X
as+ B
ax
a1(k); X
be(k)=X
bs+ B
bx
b1(k)
Formula (2), formula (3) are substituted into the pseudo-measurement that formula (4) can obtain about sensor bias
Z(k)＝H(k)β(k)+W(k)\*MERGEFORMAT(6)
Wherein,
z (k) is pseudo-measurement vector; H (k) is calculation matrix; β is sensor bias vector; W (k) is measurement noises vector; Due to n
a(k), n
bk () is zero-mean, separate Gaussian stochastic variable, and therefore W (k) is zero-mean gaussian type stochastic variable equally, and its covariance matrix is R (k).
The step that the spatial registration method of this sensor comprises is as follows:
Step one, determine data moment of low sampling rate sensor;
Step 2, employing interpolation extrapolation temporal registration algorithm, carry out the computational methods of registration, calculate the temporal registration result of high sampling rate sensor to sensor B according to the sensors A described in right 1;
Step 3, according to puppet measure building process calculate pseudo-measurement equation;
Step 4, according to constructed state equation and pseudo-measurement equation, adopt Kalman filtering, the systematic error of estimated sensor.
The advantage that the present invention has and good effect are: this multifunctional medical pediatric stethoscope structure is simple, and easy to use, headgear can avoid auscultation earplug to come off; Nursery rhymes music play by pediatric patients earplug, child can be made to think, and doctor and child patient hear is same sound, the attention of dispersion child, eliminates its feared state of mind to hospital and doctor, is provided with auxiliary rod, be convenient to block the clothes that infant starts fall, be provided with electronic timer, be convenient to timing in auscultation process, be provided with sucker body, be convenient to auscultation earplug to be fixed on auscultation place, be convenient to diagnosis.Sound insulation guard circle adopts medical grade rubber material, can carry out sound insulation preferably, solve the sensation that existing common stethoscope peripheral metal circle makes child patient feel ice-cold simultaneously to external disturbance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the multifunctional medical pediatric stethoscope that the embodiment of the present invention provides;
Fig. 2 is the structural representation of the music player that the embodiment of the present invention provides;
Fig. 3 is the structural representation of the tone frequency channel wire that the embodiment of the present invention provides;
Fig. 4 is the preparation method flow chart of the sound guide tube that the embodiment of the present invention provides;
Fig. 5 is the spatial registration method flow diagram of the sensor that the embodiment of the present invention provides;
In figure: 1, the first earplug; 2, the second earplug; 3, listening tube; 4, electronic flasher; 5, sound guide tube; 6, headgear; 7, sound is every guard circle; 8, sensor; 9, music player; 9-1, loudspeaker; 9-2, volume adjuster; 9-3, display floater; 9-4, operation push-button; 9-5, consent; 10, auxiliary rod; 11, electronic timer; 12, Ring like suction disc; 13, tone frequency channel wire; 13-1, connecting line; 13-2, audio jack; 13-3, jack panel; 13-4, sucker body.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Below in conjunction with accompanying drawing 1 to accompanying drawing 5 and specific embodiment, application principle of the present invention is further described.
This multifunctional medical pediatric stethoscope comprises: the first earplug 1, second earplug 2, listening tube 3, electronic flasher 4, sound guide tube 5, headgear 6, sound are every guard circle 7, sensor 8, music player 9, auxiliary rod 10, electronic timer 11, Ring like suction disc 12, tone frequency channel wire 13;
The middle part of Ring like suction disc 12 is provided with electronic timer 11, the outer wall of Ring like suction disc 12 is provided with auxiliary rod 10, the upper end of Ring like suction disc 12 is connected with electronic flasher 4, the signal output part of electronic flasher 4 is connected with receiver, the end of receiver is provided with sound every guard circle 7, and sound is provided with sensor 8 in guard circle 7; Sensor 8 is connected with music player 9 by wire, the audio signal output end of music player 9 is connected with listening tube 3 by sound guide tube 5, receiver is provided with the first earplug 1, first earplug 1 is provided with headgear 6, and the audio signal output end of music player 9 is also connected with the second earplug 2 by tone frequency channel wire 13.
Described sound guide tube 5 comprises tee T leading note section and straight tube leading note section, and the interface end of tee T leading note section and the interface end of straight tube leading note section are bonded together by hot melting way, and forms lapping defect at seam.
The preparation method of described sound guide tube 5 comprises the steps:
S101, prepare tee T leading note section and straight tube leading note section respectively by mold injects;
S102, the interface of the tee T leading note section prepared and straight tube leading note section be bonded together by hot melting way and form lapping defect at seam, obtaining semi-finished product sound guide tube 5;
The interface end of the interface end of tee T leading note section with straight tube leading note section is docked, and is placed in integrally forming mould;
To heat sulfuration to the interface end of tee T leading note section and the interface end of straight tube leading note section, make it be adhesively fixed, and form lapping defect at seam, wherein, hot pressing time is 200 seconds-300 seconds, and hot pressing temperature is 165 DEG C-185 DEG C, and hot pressing locked mode pressure is 150 tons-200 tons; The seam also comprised to tee T leading note section and straight tube leading note section supplements injects sound guide tube 5 raw material or binding agent;
After hot pressing completes, die sinking can obtain semi-finished product sound guide tube 5;
S103, semi-finished product sound guide tube 5 is carried out shaping and surface treatment, obtain sound guide tube 5;
Semi-finished product sound guide tube 5 is put into oven for baking 3-5 hour, and baking temperature is 200 DEG C;
After baking terminates, shot blasting on surface or blasting treatment are carried out to sound guide tube 5;
Again oil spout process is carried out to the outer surface of the sound guide tube 5 through shot-peening or blasting treatment.
Described music player 9 comprises: loudspeaker 9-1, volume adjuster 9-2, display floater 9-3, operation push-button 9-4, consent 9-5;
The upper end of loudspeaker 9-1 is provided with volume adjuster 9-2, and the lower end of loudspeaker 9-1 is provided with operation push-button 9-4 and consent 9-5, and consent 9-5 is arranged on the left side of operation push-button 9-4; Display floater 9-3 is arranged on the right-hand member of music player 9;
Described operation push-button 9-4 comprises: F.F. button, rewind button, beginning button, pause button; Described display floater 9-3 is touch screen, points directly above to operate player; Described player inside is also provided with time block and alarm clock module;
Described tone frequency channel wire 13 comprises connecting line 13-1, and described connecting line 13-1 one end is provided with audio jack 13-2, and described connecting line 13-1 is provided with jack panel 13-3 away from audio jack 13-2 one end, and described jack panel 13-3 is provided with at least two audio jacks; Sucker body 13-4 is provided with bottom jack panel 13-3;
Jack panel 13-3 is hard resin material, and audio jack comprises card agriculture jack and Flos Nelumbinis jack.
Described headgear 6 is made up of phase change fiber or is provided with phase change fiber in headgear 6, and phase change fiber is made up of doughnut and the phase-change material be filled in doughnut, and the phase transition temperature of phase-change material is 0 ~ 28 DEG C;
The interlayer that headgear 6 is formed for double layer material, be also provided with at least one pocket in this headgear 6, pocket is built with described phase change fiber.
Headgear 6 is lowered the temperature based on phase-change material decalescence, its structure is simple, easy to use, not only can be used for the patient that has a fever, simultaneously also be applicable to the early stage patient needing the acute soft tissue injury of cold treatment, and muscle spasm caused by neuralgia, neuritis, neural excitation or muscle fatigue, high heat, heatstroke etc. can be treated.
The method of the spatial registration of described sensor 8 comprises time alignment process and sensor 8 systematic error estimation process, and the process of establishing of pseudo-measurement equation is only relevant to the position of target, and has nothing to do with the state such as the speed of target;
Time alignment process to complete between sensor 8 data aligning in time, and sensors A, the metric data of sensor B under local rectangular coordinate system are respectively Y
a(t
i) and Y
b(t
i), and the sample frequency of sensors A is greater than the sample frequency of sensor B, then carry out registration by sensors A to the sampling instant of sensor B, be specially:
Adopt the temporal registration algorithm of interpolation extrapolation that the sampled data of sensors A is carried out registration to the data of sensor B, make two sensors have synchronous metric data in the spatial registration moment to same target, interpolation extrapolation temporal registration algorithm is as follows:
In sheet, each sensor 8 observed data is carried out increment sequence by certainty of measurement at one time, then by the observed data of sensors A respectively to the time point interpolation of sensor B, extrapolation, to form a series of equally spaced target observation data, the interpolation extrapolation temporal registration algorithm that carries out of 3 conventional parabolic interpolations is adopted to obtain sensors A at t
bktime be engraved in measuring value under local rectangular coordinate system
for:
Wherein, t
bkfor the registration moment, t
k-1, t
k, t
k+1for three sampling instants that the sensors A distance registration moment is nearest, Y
a(t
k-1), Y
a(t
k), Y
a(t
k+1) be respectively the detection data to target of its correspondence;
After deadline registration, according to the registration data of sensors A and the sampled data of sensor B, adopt and measure based on the puppet under solid (EarthCenterEarthFixed, the ECEF) coordinate system of ground heart the estimation that method realizes the systematic error of sensors A and sensor B; Systematic error estimation algorithm based on ECEF is specially:
Suppose that k moment target actual position under local rectangular coordinate system is
X '
1(k)=[x '
1(k), y '
1(k), z '
1(k)]
t, measuring value corresponding under polar coordinate system is
be respectively distance, azimuth, the angle of pitch; Under being converted to local rectangular coordinate system be
X
1(k)=[x
1(k), y
1(k), z
1(k)]
t; Sensor 8 system deviation is
be respectively the systematic error of distance, azimuth and the angle of pitch; So have
Wherein
represent observation noise, average is zero, variance is
Formula (1) can be launched by first approximation and be write as matrix form:
X′
1(k)＝X
1(k)+C(k)[ξ(k)+n(k)]\*MERGEFORMAT(3)
Wherein,
If two sensors A and B, then same public target (is set under ECEF coordinate system as X '
e=[x '
e, y '
ez '
e]
t), can obtain
X′
e＝X
As+B
AX′
A1(k)＝X
Bs+B
BX′
B1(k)\*MERGEFORMAT(4)
B
a, B
bbe respectively the position of target under sensors A and sensor B local coordinate system be transformed into ECEF coordinate system under position time transition matrix;
The pseudo-measurement of definition is:
Z(k)＝X
Ae(k)-X
Be(k)\*MERGEFORMAT(5)
Wherein, X
ae(k)=X
as+ B
ax
a1(k); X
be(k)=X
bs+ B
bx
b1(k)
Formula (2), formula (3) are substituted into the pseudo-measurement that formula (4) can obtain about sensor 8 deviation
Z(k)＝H(k)β(k)+W(k)\*MERGEFORMAT(6)
Wherein,
z (k) is pseudo-measurement vector; H (k) is calculation matrix; β is sensor 8 bias vector; W (k) is measurement noises vector; Due to n
a(k), n
bk () is zero-mean, separate Gaussian stochastic variable, and therefore W (k) is zero-mean gaussian type stochastic variable equally, and its covariance matrix is R (k).
The step that the spatial registration method of this sensor 8 comprises is as follows:
S201, determine data moment of low sampling rate sensor 8;
S202, employing interpolation extrapolation temporal registration algorithm, carry out the computational methods of registration, calculate the temporal registration result of high sampling rate sensor 8 to sensor B according to the sensors A described in right 1;
S203, according to puppet measure building process calculate pseudo-measurement equation;
S204, according to constructed state equation and pseudo-measurement equation, adopt Kalman filtering, the systematic error of estimated sensor 8.
Have studied and how to utilize the result of temporal registration to build the pseudo-measurement equation irrelevant with target state, thus at the solid (Earthcenterearthfixed of ground heart, ECEF) realize the spatial registration of asynchronous sensor 8 under coordinate system, solve the asynchronous sensor 8 spatial registration problem under target maneuver condition.The present invention adopts the synchronous of interpolation extrapolation temporal registration algorithm realization sensor 8 sampled data, and establish the pseudo-measurement equation irrelevant with target state according to the result of interpolation extrapolation temporal registration, adopt the spatial registration algorithm realization spatial registration of asynchronous sensor 8 based on ECEF.Process of establishing due to pseudo-measurement equation is only relevant to target location and have nothing to do with the parameter such as target speed.
Doctor is with the first earplug 1, patient is with pediatric patients second earplug 2, first earplug 1 is identical with the second earplug 2 outward appearance, nursery rhymes music play by pediatric patients the second earplug 2, child can be made to think, and doctor and child patient hear is same sound, and dispersion child is to the fear of hospital and doctor; Described music player 9 can store can play the nursery rhymes that child is popular at that time, music player 9 also can be arranged the attention that flashing lamp is used for attracting child, dispersion child is to the fear of hospital and doctor, the operation push-button 9-4 of described music player 9 includes F.F. button, rewind button, starts button, pause button, display floater 9-3 is touch screen, points directly above to operate player.
Headgear 6, in doctor's auscultation process, is enclosed within head, avoids infant to mismatch auscultation, when grabbing stethoscope with hands, can not cause stethoscopic coming off, the ear of protection doctor, also protects stethoscope not damaged simultaneously; By being provided with the electronic flasher 4 of shaking sensor, by listening tube 2, infant heart beating vibrations are reached electronic flasher 4, cause electronic flasher 4 to change, thus disperse infant attention further, eliminate its feared state of mind to auscultation, be convenient to diagnosis; The Ring like suction disc 12 that first earplug 1 is arranged, can avoid infant disorderly to move the first earplug 1 caused and be shifted, be provided with electronic timer 11, be convenient to doctor and watch in time, facilitate the diagnosis such as audiometry heart rate, respiratory frequency number of times simultaneously.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a multifunctional medical pediatric stethoscope, it is characterized in that, this multifunctional medical pediatric stethoscope comprises: the first earplug, the second earplug, listening tube, electronic flasher, sound guide tube, headgear, sound are every guard circle, sensor, music player, auxiliary rod, electronic timer, Ring like suction disc, tone frequency channel wire;
The middle part of Ring like suction disc is provided with electronic timer, the outer wall of Ring like suction disc is provided with auxiliary rod, the upper end of Ring like suction disc is connected with electronic flasher, the signal output part of electronic flasher is connected with receiver, the end of receiver is provided with sound every guard circle, and sound is provided with sensor in guard circle; Sensor is connected with music player by wire, the audio signal output end of music player is connected with listening tube by sound guide tube, receiver is provided with the first earplug, first earplug is provided with headgear, and the audio signal output end of music player is also connected with the second earplug by tone frequency channel wire.
2. multifunctional medical pediatric stethoscope as claimed in claim 1, it is characterized in that, described sound guide tube comprises tee T leading note section and straight tube leading note section, and the interface end of tee T leading note section and the interface end of straight tube leading note section are bonded together by hot melting way, and forms lapping defect at seam.
3. multifunctional medical pediatric stethoscope as claimed in claim 2, it is characterized in that, the preparation method of described sound guide tube comprises the steps:
Step one, prepare tee T leading note section and straight tube leading note section respectively by mold injects;
Step 2, the interface of the tee T leading note section prepared and straight tube leading note section be bonded together by hot melting way and form lapping defect at seam, obtaining semi-finished product sound guide tube;
The interface end of the interface end of tee T leading note section with straight tube leading note section is docked, and is placed in integrally forming mould;
To heat sulfuration to the interface end of tee T leading note section and the interface end of straight tube leading note section, make it be adhesively fixed, and form lapping defect at seam, wherein, hot pressing time is 200 seconds-300 seconds, and hot pressing temperature is 165 DEG C-185 DEG C, and hot pressing locked mode pressure is 150 tons-200 tons; The seam also comprised to tee T leading note section and straight tube leading note section supplements injects sound guide tube raw material or binding agent;
After hot pressing completes, die sinking can obtain semi-finished product sound guide tube;
Step 3, semi-finished product sound guide tube is carried out shaping and surface treatment, obtain sound guide tube;
Semi-finished product sound guide tube is put into oven for baking 3-5 hour, and baking temperature is 200 DEG C;
After baking terminates, shot blasting on surface or blasting treatment are carried out to sound guide tube;
Again oil spout process is carried out to the outer surface of the sound guide tube through shot-peening or blasting treatment.
4. multifunctional medical pediatric stethoscope as claimed in claim 1, it is characterized in that, described music player comprises: loudspeaker, volume adjuster, display floater, operation push-button, consent;
The upper end of loudspeaker is provided with volume adjuster, and the lower end of loudspeaker is provided with operation push-button and consent, and consent is arranged on the left side of operation push-button; Display floater is arranged on the right-hand member of music player;
Described operation push-button comprises: F.F. button, rewind button, beginning button, pause button; Described display floater is touch screen, points directly above to operate player; Described player inside is also provided with time block and alarm clock module;
Described tone frequency channel wire comprises connecting line, and described connecting line one end is provided with audio jack, and described connecting line is provided with jack panel away from audio jack one end, and described jack panel is provided with at least two audio jacks; Sucker body is provided with bottom jack panel;
Jack panel is hard resin material, and audio jack comprises card agriculture jack and Flos Nelumbinis jack.
5. multifunctional medical pediatric stethoscope as claimed in claim 1, it is characterized in that, described headgear is made up of phase change fiber or is provided with phase change fiber in headgear, and phase change fiber is made up of doughnut and the phase-change material be filled in doughnut, and the phase transition temperature of phase-change material is 0 ~ 28 DEG C;
Headgear is the interlayer that double layer material is formed, and be also provided with at least one pocket in this headgear, pocket is built with described phase change fiber.
6. multifunctional medical pediatric stethoscope as claimed in claim 1, it is characterized in that, the method of the spatial registration of described sensor comprises time alignment process and sensing system error estimation procedure, and the process of establishing of pseudo-measurement equation is only relevant to the position of target, and have nothing to do with the state such as the speed of target;
Time alignment process to complete between sensing data aligning in time, and sensors A, the metric data of sensor B under local rectangular coordinate system are respectively Y
a(t
i) and Y
b(t
i), and the sample frequency of sensors A is greater than the sample frequency of sensor B, then carry out registration by sensors A to the sampling instant of sensor B, be specially:
Adopt the temporal registration algorithm of interpolation extrapolation that the sampled data of sensors A is carried out registration to the data of sensor B, make two sensors have synchronous metric data in the spatial registration moment to same target, interpolation extrapolation temporal registration algorithm is as follows:
In sheet, each sensors observe data are carried out increment sequence by certainty of measurement at one time, then by the observed data of sensors A respectively to the time point interpolation of sensor B, extrapolation, to form a series of equally spaced target observation data, the interpolation extrapolation temporal registration algorithm that carries out of 3 conventional parabolic interpolations is adopted to obtain sensors A at t
bktime be engraved in measuring value under local rectangular coordinate system
for:
Wherein, t
bkfor the registration moment, t
k-1, t
k, t
k+1for three sampling instants that the sensors A distance registration moment is nearest, Y
a(t
k-1), Y
a(t
k), Y
a(t
k+1) be respectively the detection data to target of its correspondence;
After deadline registration, according to the registration data of sensors A and the sampled data of sensor B, adopt and measure based on the puppet under solid (EarthCenterEarthFixed, the ECEF) coordinate system of ground heart the estimation that method realizes the systematic error of sensors A and sensor B; Systematic error estimation algorithm based on ECEF is specially:
Suppose that k moment target actual position under local rectangular coordinate system is X '
1(k)=[x '
1(k), y '
1(k), z '
1(k)]
t, measuring value corresponding under polar coordinate system is
be respectively distance, azimuth, the angle of pitch; Be X under being converted to local rectangular coordinate system
1(k)=[x
1(k), y
1(k), z
1(k)]
t; Sensing system deviation is
be respectively the systematic error of distance, azimuth and the angle of pitch; So have
Wherein
represent observation noise, average is zero, variance is
Formula (1) can be launched by first approximation and be write as matrix form:
X′
1(k)＝X
1(k)+C(k)[ξ(k)+n(k)]\*MERGEFORMAT(3)
Wherein,
If two sensors A and B, then same public target (is set under ECEF coordinate system as X '
e=[x '
e, y '
e, z '
e]
t), can obtain
X′
e＝X
As+B
AX′
A1(k)＝X
Bs+B
BX′
B1(k)\*MERGEFORMAT(4)
B
a, B
bbe respectively the position of target under sensors A and sensor B local coordinate system be transformed into ECEF coordinate system under position time transition matrix;
The pseudo-measurement of definition is:
Z(k)＝X
Ae(k)-X
Be(k)\*MERGEFORMAT(5)
Wherein, X
ae(k)=X
as+ B
ax
a1(k); X
be(k)=X
bs+ B
bx
b1(k)
Formula (2), formula (3) are substituted into the pseudo-measurement that formula (4) can obtain about sensor bias
Z(k)＝H(k)β(k)+W(k)\*MERGEFORMAT(6)
Wherein,
z (k) is pseudo-measurement vector; H (k) is calculation matrix; β is sensor bias vector; W (k) is measurement noises vector; Due to n
a(k), n
bk () is zero-mean, separate Gaussian stochastic variable, and therefore W (k) is zero-mean gaussian type stochastic variable equally, and its covariance matrix is R (k).
7. multifunctional medical pediatric stethoscope as claimed in claim 6, it is characterized in that, the step that the spatial registration method of this sensor comprises is as follows:
Step one, determine data moment of low sampling rate sensor;
Step 2, employing interpolation extrapolation temporal registration algorithm, carry out the computational methods of registration, calculate the temporal registration result of high sampling rate sensor to sensor B according to the sensors A described in right 1;
Step 3, according to puppet measure building process calculate pseudo-measurement equation;
Step 4, according to constructed state equation and pseudo-measurement equation, adopt Kalman filtering, the systematic error of estimated sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002844.0A CN105559817A (en) | 2015-12-29 | 2015-12-29 | Multifunctional medical pediatric stethoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002844.0A CN105559817A (en) | 2015-12-29 | 2015-12-29 | Multifunctional medical pediatric stethoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105559817A true CN105559817A (en) | 2016-05-11 |
Family
ID=55870865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511002844.0A Pending CN105559817A (en) | 2015-12-29 | 2015-12-29 | Multifunctional medical pediatric stethoscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105559817A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105919623A (en) * | 2016-05-28 | 2016-09-07 | 薛洁 | Multifunctional stethoscope for department of pediatrics |
| CN106137243A (en) * | 2016-07-23 | 2016-11-23 | 刘明 | A kind of multifunctional medical pediatric stethoscope |
| CN106137359A (en) * | 2016-07-22 | 2016-11-23 | 张立沼 | A kind of orthopaedics lock screw |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104306016A (en) * | 2014-11-11 | 2015-01-28 | 伍中华 | Medical pediatric stethoscope |
| CN104644323A (en) * | 2015-01-27 | 2015-05-27 | 广州医科大学附属第一医院 | Cooling head sleeve |
| CN104809326A (en) * | 2014-06-23 | 2015-07-29 | 方洋旺 | Asynchronous sensor space alignment algorithm |
| CN104840215A (en) * | 2015-05-15 | 2015-08-19 | 姜杰 | Stethoscope for department of pediatrics |
-
2015
- 2015-12-29 CN CN201511002844.0A patent/CN105559817A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104809326A (en) * | 2014-06-23 | 2015-07-29 | 方洋旺 | Asynchronous sensor space alignment algorithm |
| CN104306016A (en) * | 2014-11-11 | 2015-01-28 | 伍中华 | Medical pediatric stethoscope |
| CN104644323A (en) * | 2015-01-27 | 2015-05-27 | 广州医科大学附属第一医院 | Cooling head sleeve |
| CN104840215A (en) * | 2015-05-15 | 2015-08-19 | 姜杰 | Stethoscope for department of pediatrics |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105919623A (en) * | 2016-05-28 | 2016-09-07 | 薛洁 | Multifunctional stethoscope for department of pediatrics |
| CN106137359A (en) * | 2016-07-22 | 2016-11-23 | 张立沼 | A kind of orthopaedics lock screw |
| CN106137243A (en) * | 2016-07-23 | 2016-11-23 | 刘明 | A kind of multifunctional medical pediatric stethoscope |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101616473B1 (en) | Smartphone with telemedical device | |
| Ramesha et al. | Implementation of IoT Based Wireless Electronic Stethoscope | |
| US20170185737A1 (en) | Physical examination method and apparatus | |
| WO2015193917A3 (en) | Method and system for cuff-less blood pressure (bp) measurement of a subject | |
| CN105559817A (en) | Multifunctional medical pediatric stethoscope | |
| WO2015022604A3 (en) | Method and display for long term physiological signal quality indication | |
| EP2704807A1 (en) | Gesture recognition via an ad-hoc proximity sensor mesh for remotely controlling objects | |
| CN102327115A (en) | Heart rate detection equipment | |
| WO2022038364A1 (en) | Continuous blood pressure monitoring | |
| JP2013094261A5 (en) | ||
| CN203988121U (en) | Electronics bluetooth stethoscope | |
| CN203693634U (en) | Wireless-control thermal-insulation child stethoscope | |
| JPWO2020092786A5 (en) | ||
| CN107307883B (en) | multi-channel ultrasonic image diagnosis system with intelligent image interpreter and use method thereof | |
| EP4356822A3 (en) | Sleep staging using an in-ear photoplethysmography (ppg) | |
| WO2014018024A1 (en) | Combined oscillometric and auscultatory non-invasive blood pressure monitor system | |
| CN203506747U (en) | Wearable heart, lung and intestine comprehensive detection device | |
| CN104146727A (en) | Resonance type two-sided stethoscope | |
| CN208837922U (en) | A kind of long-range diagnosis by feeling the pulse system | |
| JP2011200282A5 (en) | ||
| CN209661620U (en) | A kind of risk of hypertension monitoring device | |
| CN205083506U (en) | Children are stethoscope for internal medicine | |
| KR101520929B1 (en) | Arm model for training of blood pressure and pulse examination | |
| CN203555754U (en) | Stethoscope for medical internal medicine | |
| CN205072860U (en) | Electrocardio pulse signal diagnostic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160511 |