CN2885122Y

CN2885122Y - Electro-optical abdominal breathing sensor

Info

Publication number: CN2885122Y
Application number: CN 200620049881
Authority: CN
Inventors: 彭小虎
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-01-23
Filing date: 2006-01-23
Publication date: 2007-04-04
Anticipated expiration: 2016-01-23

Abstract

The utility model discloses an abdominal breathing sensor, which comprises a spindle, a transmission belt, a gate disk, a groove-type photoelectric switch, wherein the groove-type photoelectric switch is provided with a transmitting tube and a receiving tube. The utility model is characterized in that when the patient is breathing, the concave and convex action of the abdominal will pull the transmission belt which is fixed on the spindle, thereby driving the spindle to roll, and then the spindle will drive the gate disk to roll; when the gate disk is rolling, the transmitting tube and the receiving tube can exactly permeate the grids; when light transmission color bands with different colors make the gate disk roll, the receiving tube can receive different signals; the light strength value, which is received by the groove-type photoelectric switch via the exchanging circuit, can be changed into the voltage value which has linear relation with the light strength value, and then the voltage value can be output. The utility model has the advantages of that the sensitivity is high, the structure is simple, and the emi-free is good. The utility model is suitable for the measurement of different respiration depth and has no sense of compression after long using.

Description

Photo-electric ventral breathing pick off

Technical field

This utility model relates to a kind of medical signals checkout gear, specifically a kind of photo-electric ventral breathing pick off.

Background technology

Be used for the pick off that abdominal breathing exercise detects at present two classes are arranged: a class is that to adopt be the inflatable waistband of band pressure-electric weight sensing element, causes that by respiratory movement the pressure of tying up at the inflatable waistband of abdominal part changes, thereby obtains associated electrical signals; Another kind of is to adopt the elasticity sensing element that ties up to the abdomen periphery, when respiratory movement, causes the foil gauge change in resistance on the elasticity sensing element, also is to detect and the relevant displacement signal of respiratory midfield volume-variation as the first kind.In actual applications, all there is weak point in aforesaid way: the transformable displacement of pick off is too little, can not accurately measure not even energy measurement to the incident that respiratory depth is too big, and measuring range is narrow, and sensitivity is not high; In addition because displacement is little, so need be tighter, therefore, tie up in the abdominal part time longly slightly, human body will produce constriction.

The utility model content

The purpose of this utility model is to overcome the prior art deficiency, provide a kind of pressure limit not limit, highly sensitive, anti-electromagnetic interference capability is strong, use no constriction for a long time, can directly detect the photo-electric ventral breathing pick off of diaphram variation overall process under the respiratory movement.

This utility model comprises housing, driving-belt, going barrel, the grid dish, main shaft, its main shaft is positioned housing central authorities by fixing hole, driving-belt of socket on the main shaft, the driving-belt other end stretches out outside the housing and links to each other with the transmission bracelet, the driving-belt bottom is provided with going barrel, and the going barrel bottom is provided with the grid dish, and main shaft vertically passes the central authorities of going barrel, grid dish, the grid dish is provided with the 3N evenly distributed around a center of circle grid, and per three grids are one group; The grid downside of each group posts the printing opacity colour band of different colours in proper order, and the color sequences of each group is identical; Grid dish one side is equipped with the miniature slot type photoswitch of being made up of transmitting tube, receiving tube, photoswitch is connected with data wire, the light intensity value that the slot type photoswitch is received by existing translation circuit converts the magnitude of voltage output linear with it to, thereby realizes the active electrical measurement of abdominal part that respiratory movement causes.

Translation circuit can use AD or comparator.

The precision of measuring depends on the quantity of grid, and grid is many more, and certainty of measurement is high more.

The main uses of going barrel is can make it resilience behind abdominal part projection pulling driving-belt.

This utility model compared with prior art, its advantage is: 1, pressure limit is not limit; 2, highly sensitive, be applicable to the measurement of different respiratory depth; 3, simple in structure, anti-electromagnetic interference is good; 4, the no constriction of long-time use; 5, realized the electrical measurement of diaphram activity overall process under the respiratory movement.

Description of drawings

Fig. 1 is this utility model overall structure sketch map;

Fig. 2 is this utility model grid dish structural representation;

Among the figure:

1 driving-belt, 2 transmission bracelets, 3 clockwork springs, 4 holding wires, 5 slot type photoswitches, 6 grid dishes

7 main shafts, 8 grids, 9 printing opacity colour bands, 10 housings, 11 going barrels, 12 main shaft fixing holes

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Embodiment:

With reference to accompanying drawing: main shaft 7 is positioned housing central authorities by the fixing hole 12 of top in the housing 10, one end of driving-belt 1 and main shaft socket, the other end stretches out outside the housing and links to each other with transmission bracelet 2, driving-belt 1 bottom next-door neighbour's internal fixation has the going barrel 11 of clockwork spring 3, going barrel 11 bottoms are grid dish 6, present embodiment is provided with 12 grids 8 evenly distributed around the center of circle on grid dish 6, per three grids 8 (A, B, C) are one group; Establish four groups altogether, the grid downside posts the printing opacity colour band 9 of different colours in proper order, and present embodiment is that A is blue, and B is a white, and C is a transparent color, every group of printing opacity colour band color difference, but color sequences is identical; Grid dish 6 one sides are equipped with the miniature slot type photoswitch 5 of purchase, and the transmitting tube of slot type photoswitch 5, receiving tube can accurately see through grid 8 when grid dish 6 rotates; Photoswitch is connected with three-core cable holding wire 4.

During use driving-belt is enclosed within the human abdomen, fastening transmission bracelet under the situation of suitable tensity, one of abdominal part recessed one protruding pulling is fixed on the driving-belt on the main shaft during breathing, drives main shaft and rotates, and main shaft drives the grid dish and rotates; The transmitting tube of slot type photoswitch 5, receiving tube can accurately see through grid 8 when grid dish 6 rotates, so receiving tube can receive the signal that transmitting tube is launched; When the printing opacity colour band 9 of different colours rotated grid dish 6 on the grid 8, receiving tube can receive different signals, under the changeless situation that transmits, and regardless of grid dish 6 initial positions, the regular received signal in the equal according to the form below of receiving tube:

	Pulling (air-breathing)			Resilience (expiration)
	Pulling (air-breathing)			Resilience (expiration)			The position	A	B	C	C	B	A
The position	B	C	A	A	C	B	The position	A	B	C	C	B	A
The position	B	C	A	A	C	B	The position	C	A	B	B	A	C

In view of the above, can judge accurately that the phase place of breathing changes, press as can be known promptly that A, B, C are tactic to be breathing process, press C, B, A is tactic is exhalation process.The light intensity value that slot type photoswitch 5 is received by translation circuit AD or comparator converts magnitude of voltage output linear with it to.Thereby, realize the active electrical measurement of abdominal part that respiratory movement causes.Whole device is encapsulated in diameter 15mm, in the plastic cylinder shape housing 10 of long 20mm, by a three-core cable holding wire 4 electric quantity signal is exported.

Claims

1. photo-electric ventral breathing pick off, comprise housing, driving-belt, going barrel, the grid dish, main shaft is characterized in that main shaft is positioned housing central authorities by fixing hole, driving-belt of socket on the main shaft, the driving-belt other end stretches out outside the housing and links to each other with the transmission bracelet, the driving-belt bottom is provided with going barrel, and the going barrel bottom is provided with the grid dish, and main shaft vertically passes going barrel, the central authorities of grid dish, the grid dish is provided with the 3N evenly distributed around a center of circle grid, per three grids are one group, and each group grid downside posts the printing opacity colour band of different colours in proper order, and the color sequences of each group is identical; Grid dish one side is equipped with the miniature slot type photoswitch of being made up of transmitting tube, receiving tube, and photoswitch is connected with data wire, and the light intensity value that the slot type photoswitch is received by translation circuit converts magnitude of voltage output linear with it to.

2. photo-electric ventral breathing pick off according to claim 1 is characterized in that described data wire is the three-core cable holding wire.