CN205849449U - A kind of photoplethysmographic signal acquisition process fingerstall - Google Patents

Abstract

This utility model relates to a kind of photoplethysmographic signal acquisition process fingerstall, processes end and data collection terminal portion including data, and data process end and include that control circuit unit and slide, slide periphery are provided with the first slide rail；Data acquisition end includes base, silica gel strip, sensor and non-woven fabrics；Base is provided with the second chute；Connect on silica gel strip and have sensor；The fixing end of non-woven fabrics is fixedly connected on base, and the silica gel strip being provided with described sensor is fixed on finger by the free end of non-woven fabrics；Slide is coordinated with described second chute by described first slide rail with described base and fixes and be connected.This utility model overall construction design is ingenious, reasonable, sensor and finger be tightly combined, firm, constant, and use more convenient, need not any wire, improve the accuracy and stability measured, and some parts damages can abandon as consumptive material, do not affect the normal use of other parts, cost-effective, the saving energy.

Description

A kind of photoplethysmographic signal acquisition process fingerstall

Technical field

This utility model relates to a kind of signal pickup assembly in medical instruments field, is specifically related to a kind of photoelectricity volume arteries and veins Fight ripple signal acquisition process fingerstall.

Background technology

Photoplethysmographic (PhotoPlethysmoGraphy, PPG) is that excuse me, and electric hand section detects in biological tissue A kind of non-invasive detection methods of volumetric blood change.

When the light beam of certain wavelength is irradiated to finger tip skin surface, light beam will be sent to light by transmission or reflection mode Electricity receptor.In the process due to the attenuation by absorption effect by finger tip integumentary musculature and blood, the light that detector detects Intensity will weaken.Wherein light is absorbed and is to maintain invariable and skin in whole blood circulation by integumentary musculature tissue etc. Interior volumetric blood changes in pulsation under key role.The most absorbing amount of peripheral blood capacity is the most maximum when the heart contracts The light intensity detected is minimum；And the light intensity maximum that contrast detects when diastole, make optical receiver receive Light intensity therewith in pulsating nature change this intensity variation signal is converted into telecommunications.

Volume pulsation wave datum participates in the diagnosis of a lot of diseases, such as sleep apnea syndrome (OSAHS) etc..And mesh On front market, the device of collection PPG signal is and wears harvester body in wrist, and then this harvester body passes through Wire is connected with acquisition probe, and acquisition probe is a clip, and is clipped on finger by this clip and carries out data acquisition；This device is extremely Have the disadvantage that first less, collide or user move, stand up time, clip easily offsets, cause gather data not Accurately, unstable；Then user is when gathering PPG signal, it usually needs careful；Secondly as harvester body with Acquisition probe is connected by wire, then user or other people in side easily imprudence is collided or pulls wire, the most also holds Easily make acquisition probe offset, affect measurement result.

Monitor, judge that sleep apnea syndrome (OSAHS) typically requires long-time collection PPG signal, as used Wearing harvester before person's sleep, take off morning, the data collected user the most whole night process, calculating etc., Finally draw concrete conclusion；If then using the harvester that above-mentioned existing market is general, then user is in order to make collection Device does not offsets, tests accurately, the most for a long time, stays up the most whole night, therefore, brings great inconvenience for user.

At present, rarely have by being combined, with processing means, the photoelectricity volume arteries and veins effectively gathered to same device by gathering Fight ripple acquisition process fingerstall.Publication No. is that the Chinese patent application of CN 105769139 A discloses the pulse letter being positioned on fingernail Number gather and data wireless base station apparatus, it includes pulse transducer, untight clamping flexure strip, hinge, untight finger Portion's fixed cover, signal conditioning circuit module and single-chip microcomputer gather sending module, and clamping flexure strip can be by pulse transducer Being stably fixed on fingernail, clamping flexure strip is connected by hinge with finger fixed cover, and can turn with the activity of finger Dynamic.Device that it is a hollow, that finger can pass through, overall structure is like finger-shaped, but through the hole of finger in the middle of this device Size is the most fixing, and user individual variation is big, and the thickness length difference of finger is relatively big, then be easily caused pulse transducer with Finger contact is unstable or insecure thus greatly affects the accuracy of data acquisition.Additionally, the fine structure of this device, system Making complexity, certain parts damages is non-exchange, needs to abandon whole device, i.e. allows to change, and its operation is the most more complicated, Time cost is high.Therefore, the practicality of this device is not strong, is unsuitable for clinical practice.

Utility model content

The purpose of this utility model is to provide a kind of photoplethysmographic signal acquisition process fingerstall, existing to overcome The defect of technology.

The purpose of this utility model is to be achieved through the following technical solutions:

A kind of photoplethysmographic signal acquisition process fingerstall, processes end and data collection terminal portion including data,

Described data process end and include control circuit unit and slide, and described slide sets on peripheral two relative sides There is outward extending first slide rail；

Described data acquisition end includes base, silica gel strip, sensor and non-woven fabrics；One side of described base sets Having opening, the inner side of two sides adjacent with described opening is provided with the second chute matched with described first slide rail；Described Base is connected with described silica gel strip, and described silica gel strip is fixedly connected with the described sensing for acquired volume pulse wave signal Device；Described non-woven fabrics includes fixing end and the free end that can be fixed on finger by described silica gel strip, fixing of described non-woven fabrics End is fixedly connected on described base.

Described slide is coordinated with described second chute by described first slide rail with described base and fixes and be connected, so that Described data are processed end and data collection terminal portion and can be coordinated and fixing connection by the first slide rail and the second chute.

Further, peripheral two the relative sides of described slide being additionally provided with the first chute, described first chute is arranged It is connected in the inner side of described first slide rail and with described first slide rail.

The inner side of two sides adjacent with described opening on described base is additionally provided with matches with described first chute Second slide rail, described second slide rail is arranged at the outside of described second chute and is connected with described second chute.

Further, the both sides of described base are provided with the protuberance extended to direction, silica gel strip place；Described silica gel strip card It is connected between the protuberance of described base both sides.

Further, described sensor includes emission sensor and receives sensor, and described silica gel strip is provided with transmitting sensing One end of device is fixedly connected between described protuberance, and described silica gel strip is provided with one end of reception sensor and stretches out described base Outward.

Further, described protuberance is provided with fixing hole, and the fixing end of described non-woven fabrics is fixedly connected on described fixing In hole.

Further, the both sides of described base are respectively provided with two protuberances, two protrusions that described silica gel strip both sides are relative The silica gel strip being provided with described sensor is fixed on finger by the non-woven fabrics cooperation in portion, and two rows fix, fixing more firm, patch Close tightr.

Further, described non-woven fabrics is compounded with adhesive layer, the nonwoven on protuberance that described silica gel strip both sides are relative Cloth connects by adhesive layer is fixing.

Further, described data process end also includes that spring contact, described spring contact are arranged at slide towards institute State the side of base；Described spring contact is connected electrical or through wire with described control circuit unit；

Described data acquisition end also includes that spring contact strip, described spring contact strip are arranged at base towards the one of described slide Side；Described spring contact strip is connected electrical or through wire with described sensor；

Described slide matches with described base and makes described spring contact strip electrically connect with described spring contact.

Further, described control circuit unit includes pcb board and the governor circuit mould being arranged on described pcb board Block, power circuit block and bluetooth module, described governor circuit module connects with described power circuit block and described bluetooth module Connect.

Further, described pcb board is additionally provided with switch contact and display lamp.

The beneficial effects of the utility model:

The control circuit unit etc. of the sensor and process signal that gather PPG signal is all compound in this and adopts by this utility model Collection does not processes on fingerstall, uses more convenient, only need to be worn on finger by device and just may be used, it is not necessary to any wire, simply and not Harvester skew can be occurred accuracy and the stability of data is affected because encountering wire；

Acquisition process fingerstall of the present utility model can be divided into data to process end and data collection terminal portion, by sliding during use Data can be processed end and data collection terminal portion and effectively join by the cooperation of the concrete structures such as seat, chute on base and slide rail Logical, then it is operated, smart structural design, data process end and data collection terminal part, close easily, convenient operation, and This kind of connected mode is firm, it is often more important that, after being used for multiple times, if the sensitivity such as sensor can be by data acquisition end after declining Portion abandons as consumptive material, nor affects on data and processes the normal use of end, cost-effective, the saving energy；

Acquisition process fingerstall can be fixed on the fixed position of finger by this utility model by non-woven fabrics, then sensor with Finger is tightly combined, firm, constant, pine will not be neglected and neglect tight, affect the stability of data, also will not make acquisition process fingerstall and quilt Surveying finger generation relative displacement etc., therefore, what user can be random after wearing this acquisition process fingerstall moving or standing up, no It is susceptible to the situation of sensor offset, thus improves accuracy and the stability of measurement, make the reliability of measurement data significantly Improve；Additionally, this utility model is by being fixed on non-woven fabrics in the fixing hole on base, then make the company of non-woven fabrics and fixing hole Connect and separate the most very easy, after using this acquisition process fingerstall, just non-woven fabrics can be abandoned as consumptive material, Yi Mianying the most every time Ring the firmness of its binding, thus affect acquisition precision.

Acquisition process fingerstall of the present utility model, without the structure that becomes more meticulous, makes simple；And this fingerstall is regardless of model, no matter hands Refer to thick, thin, long and short the most wearable, and all can ensure that the fixed position of the sensor and finger that gather data is combined closely, to survey Test result does not has any impact.

Accompanying drawing explanation

Fig. 1 is the decomposing schematic representation of the acquisition process fingerstall described in this utility model embodiment；

Fig. 2 is the structural representation during acquisition process fingerstall use described in this utility model embodiment；

Fig. 3 is the decomposing schematic representation of the acquisition process fingerstall described in another embodiment of this utility model；

Fig. 4 is the front view of the slide described in this utility model embodiment；

Fig. 5 is the side view of the slide described in this utility model embodiment and base engagement；

Fig. 6 is the slide described in another embodiment of this utility model and the side view of base engagement.

In figure:

1, upper casing；11, light-guiding pillar；2, control circuit unit；24, battery；3, slide；31, groove；34, the first chute； 35, the first slide rail；4, spring contact；5, spring contact strip；6, base；61, protuberance；62, fixing hole；63, the second chute；64、 Second slide rail；65, draw-in groove；66, opening；67, side；7, silica gel strip；71, slotted eye；8, sensor；81, emission sensor；82、 Receive sensor；9, non-woven fabrics；10, finger.

Detailed description of the invention

For making the purpose of this utility model embodiment, technical scheme and advantage clearer, new below in conjunction with this practicality Accompanying drawing in type embodiment, is clearly and completely described the technical scheme in this utility model embodiment, it is clear that retouched The embodiment stated is a part of embodiment of this utility model rather than whole embodiments.Generally described in the accompanying drawing herein and The assembly of this utility model embodiment illustrated can be arranged with various different configurations and design.Therefore, below to attached The detailed description of the embodiment of the present utility model provided in figure is not intended to limit claimed scope of the present utility model, But it is merely representative of selected embodiment of the present utility model.Based on the embodiment in this utility model, ordinary skill people The every other embodiment that member is obtained under not making creative work premise, broadly falls into the model of this utility model protection Enclose.

In description of the present utility model, it should be noted that term " upper surface ", " lower surface ", "left", "right", Orientation or the position relationship of the instruction such as " interior ", " outward " are based on orientation shown in the drawings or position relationship, are for only for ease of and retouch State this utility model and simplifying describe rather than instruction or the hint device of indication or element must have specific orientation, with Specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second " It is only used for describing purpose, and it is not intended that indicate or hint relative importance.

Embodiment 1

As shown in Fig. 1～2, Fig. 1 is the structural representation of acquisition process fingerstall, when Fig. 2 is the use of acquisition process fingerstall Structural representation.

A kind of photoplethysmographic signal acquisition process fingerstall, processes end and data collection terminal portion, number including data Include that control circuit unit 2 and slide 3, control circuit unit 2 and slide 3 connect according to processing end, slide peripheral relative two Individual side is provided with the first slide rail and the first chute, and the first chute is arranged at the inner side of the first slide rail and is connected with the first slide rail； Data acquisition end includes base, silica gel strip, sensor and non-woven fabrics；One side of base is provided with opening, with opening phase The inner side of two adjacent sides is provided with the second chute matched with the first slide rail and the second cunning matched with the first chute Rail, the second slide rail is arranged at the outside of the second chute and is connected with the second chute, and dual chute coordinates with slide rail so that during use Data process the fixing more firm of end and data collection terminal portion.

Base is connected with silica gel strip, and silica gel strip 7 is fixed with the sensor 8 for acquired volume pulse wave signal；Sensing Device 8 includes emission sensor 81 and receives sensor 82, and emission sensor 81 and reception sensor 82 communication connect, and launch sensing Device 81 can send a signal to receive sensor 82, and specifically, silica gel strip 7 is provided with two slotted eyes matched with sensor 8 71, emission sensor 81 and reception sensor 82 are respectively arranged in two slotted eyes 71 just.Silica gel strip 7 is provided with emission sensor One end of 81 is fixedly connected between the protuberance 61 of base 6 both sides, and silica gel strip 7 is provided with one end of reception sensor 82 and stretches out the end Outside seat 6, stretch out base 6, convenient by its lateral buckling in finger 10 so that receive sensor 82 fit in inside finger 10 and It is located exactly at the underface of emission sensor 81.

Non-woven fabrics 9 includes fixing end and free end, and the fixing end of non-woven fabrics 9 is fixedly connected in fixing hole 62, non-woven fabrics 9 Free end acquisition process fingerstall is fixed on finger 10.During use, on two protuberances 61 that silica gel strip 7 both sides are relative Non-woven fabrics 9 coordinates and is fixed on finger by the silica gel strip being provided with sensor 8, and acquisition process fingerstall fixed by two row's non-woven fabrics, patch Close tightr, fixing more firm so that later data gathers more accurate.Adhesive layer, silica gel strip both sides phase it is compounded with on non-woven fabrics To protuberance on non-woven fabrics connect by adhesive layer is fixing, thus acquisition process fingerstall is fixed on finger, certainly, also Other fixed form can be selected according to actual needs, such as both sides non-woven fabrics directly knotting etc..

During use, control circuit unit is connected with sensor, just can carry out data transmission.

Embodiment 2

As seen in figures 3-5, Fig. 3 is the overall decomposing schematic representation of photoplethysmographic signal acquisition process fingerstall, this figure The sensor in middle left side is emission sensor, and the sensor on right side is for receiving sensor；Fig. 4 is the front view of slide, its three Side is provided with side, and a side is opening, without side；The side view that Fig. 5 is slide and base links together, aobvious in this figure Show is double chute double sided slider bar structures.

A kind of volume pulsation wave acquisition process fingerstall described in this utility model embodiment, including can the number of mutual UNICOM According to processing end and data collection terminal portion.

Data process end and include upper casing 1, control circuit unit 2, slide 3 and spring contact 4；

Upper casing 1 is an open-topped dead slot structure, and control circuit unit 2 is arranged in upper casing 1, described control circuit list Unit 2 includes pcb board and the governor circuit module, power circuit block and the bluetooth module that are arranged on described pcb board, master control electricity Road module is connected with power circuit block and bluetooth module；Power circuit block includes battery 24 and electric power management circuit, battery 24 back sides (i.e. the back side of pcb board) being fixedly connected on control circuit unit 2 are also positioned over upper casing with control circuit unit 2 In 1.Battery 24 can be accumulator.

Switch contact and display lamp it is additionally provided with on control circuit unit 2；On upper casing 1 corresponding position be provided with light-conductive hole and with The contactor that switch contact connects, is provided with the light-guiding pillar 11 of the light that can derive display lamp in light-conductive hole, i.e. light-guiding pillar 11 with Display lamp on control circuit unit 2 is located along the same line so that light can be derived by light-guiding pillar 11.

The lower surface of slide 3 is movably connected on the opening part of upper casing 1, i.e. slide 3 and upper casing 1 is separable or removably Install；The lower surface of slide 3 towards described control circuit unit 2, its can and the tight closing of control circuit unit 2 can also be spaced Certain gap, is specifically dependent upon the degree of depth of upper casing 1, and the upper surface of slide 3 is provided with the groove that can match with spring contact 4 31, spring contact 4 is arranged in groove 31, and spring contact 4 is electrically connected by wire with control circuit unit 2；The peripheral phase of slide 3 To two sides be provided with the first chute 34, form the first slide rail 35 between the first chute 34 and the upper surface of slide 3, i.e. One slide rail 35 is arranged at the outside of the first chute 34 and is connected with described first chute 34；And although the lower surface of slide 3 connects In the opening part of upper casing 1, but the first chute 34 and the first slide rail 35 are revealed in the outside of upper casing 1.

Data acquisition end includes spring contact strip 5, base 6, silica gel strip 7, sensor and non-woven fabrics.

Base 6 is that a side of the semi-closed casings of end face and one side opening, i.e. base 6 is provided with opening 66, and opens The inner side of two sides 67 that the side of mouthfuls 66 is adjacent is provided with the second chute 63 matched with the first slide rail 35 and with first The second slide rail 64 that chute 34 matches；Second slide rail 64 is arranged at the outside of the second chute 63 and is connected with the second chute 63； Thickness and the degree of depth of the second slide rail 64 match with thickness and the degree of depth of the first chute 34, the thickness of the second chute 63 and the degree of depth with Thickness and the degree of depth of the first slide rail 35 match, and the i.e. second slide rail 64 can be contained in the first chute 34 just, meanwhile, and first Slide rail 35 can be contained in the second chute 63 just.Silica gel strip 7 is provided with sensor, described sensor and described spring contact strip 5 are electrically connected by wire；Described non-woven fabrics includes fixing end and free end, and the fixing end of described non-woven fabrics is fixedly connected on described On base 6, the silica gel strip 7 being provided with described sensor is fixed on finger by the free end of described non-woven fabrics.Select silica gel strip 7 As laying the support of sensor, it is placed more firmly and is not easy to make sensor shake.

The outside (i.e. upper surface on accompanying drawing 1) of base 6 is connected by binding agent is fixing with silica gel strip 7, the inner side of base 6 (i.e. lower surface on Fig. 1) is provided with the draw-in groove 65 matched with spring contact strip 5；Spring contact strip 5 is arranged in draw-in groove 65.Base 6 Both sides be provided with and stretch out the protuberance 61 of (i.e. extending) to direction, silica gel strip 7 place, the both sides of base 6 be respectively provided with two convex Going out portion 61, silica gel strip 7 is connected between the protuberance 61 of base 6 both sides；Fixing hole 62 it is equipped with on protuberance 61, non-woven fabrics Fixing end is fixedly connected in fixing hole 62；Adhesive layer it is compounded with, then on the protuberance 61 that silica gel strip 7 both sides are relative on non-woven fabrics Non-woven fabrics by adhesive layer be adhesively fixed, just the silica gel strip 7 being provided with sensor is fixed on finger, thus will Acquisition process fingerstall is fixed on finger.

Sensor 8 includes emission sensor 81 and receives sensor 82, and during use, emission sensor 81 is arranged at finger Outside, receives sensor 82 and is arranged at the inner side of finger, and reception sensor 82 is put by finger symmetry with emission sensor 81 Put.

Silica gel strip 7 is provided with two slotted eyes matched with sensor 71, emission sensor 81 and reception sensor 82 points It is not arranged in two described slotted eyes 71.Silica gel strip 7 be provided with one end of emission sensor 81 be fixedly connected on protuberance 61 it Between, silica gel strip 7 is provided with one end of reception sensor 82 and extends outside the base, and during use, silica gel strip 7 is provided with the one of emission sensor 81 End is positioned over outside finger near nail cover, and the most correspondingly, all parts that data process in end and data collection terminal portion is equal Be fixed on the outside of finger by silica gel strip 7, one end that then silica gel strip 7 is provided with reception sensor 82 is curved through finger Roll over the inner side in finger, finally by non-woven fabrics, silica gel strip 7 is fixed on finger, will emission sensor 81 and reception sensing Device 82 is fixed on fixing position, just can carry out the collection of PPG.

Described data are processed the slide 3 of end and can be coordinated with the second chute 63 and first by described first slide rail 35 Chute 34 and the second slide rail 64 coordinate be connected with the base 6 of described data acquisition end make spring contact 4 on described slide 3 and Spring contact strip 5 in base 6 turns on.Dual chute, slide rail coordinate the combination making data process end and data acquisition end More firm, and slide 3 is more difficult skids off from base 6, makes no matter user is in state or the state of " moving " of " quiet " The most do not affect work and the test result of this acquisition process fingerstall.

Embodiment 3

As shown in Figure 6, the structural representation that Fig. 6 is only one slide rail and a chute matches.

Peripheral two the relative sides of slide 3 in embodiment 1～2 are provided with outward extending first slide rail 35, though and So the lower surface of slide 3 is fixedly connected on the opening part of upper casing 1, but the first slide rail 35 is revealed in the outside of upper casing 1, the convenient and end Seat 6 is slidably matched.

Accordingly, the inner side of two adjacent with the side of opening on base 6 sides is provided with matches with the first slide rail 35 The second chute 63；The thickness of the second chute 63 matches with the degree of depth with the thickness of the degree of depth with the first slide rail 35, the i.e. first slide rail 35 just can be contained in the second chute 63 in effectively slide.

After the first slide rail 35 on slide 3 slips into the second chute 63 on base 6, spring contact 4 connects with spring contact strip 5 Touch, thus realize data and process the electrical connection of end and data acquisition end.I.e. slide 3 and base 6 by the first slide rail 35 with Second chute 63 coordinates and fixing connection.

Other structures of acquisition process fingerstall are in the same manner as in Example 1, and explanation is not repeated herein.

Embodiment 4

Photoplethysmographic signal acquisition process fingerstall in embodiment 1～3 is whole with the intelligence being provided with bluetooth equipment End connects, and as being connected by bluetooth with smart mobile phone, then the data limit of control circuit unit 2 is transmitted to intelligent terminal, passes through intelligence Can terminal be further processed.

When being embodied as, matched with the first slide rail 35 by the second chute 63, or the second chute 63 and the first slide rail 35 Match and the second slide rail 64 matches with the first chute 34, then the slide 3 of data process end slips into data acquisition end Base 6 make spring contact 4 turn on spring contact strip 5 or electrically connect, and make data process end become with data collection terminal portion For the overall structure of acquisition process fingerstall, then the fingernail of user faces up, and is placed on fingernail face by acquisition process fingerstall, And make emission sensor 81 fit on fingernail, then silica gel strip 7 is curved and U-shaped surround finger, make emission sensor 81 press close to Make reception sensor 82 be positioned at inside finger while fingernail and be positioned at the underface of emission sensor 81.

Then with the non-woven fabrics in the fixing hole 62 being arranged on base 6 protuberance 61, whole acquisition process fingerstall is fixed On finger.Before going to bed, touch the start of the contactor on the acquisition process fingerstall being worn on finger tip and make acquisition process fingerstall Start working.

Emission sensor 81 gathers the PPG signal of user by infrared light, the operation principle of this emission sensor 81, Gather the mode of signal and signal how transmission etc. and can be found in prior art, its non-inventive point of the present utility model, the most not Narration detailed to prior art again.Then receive sensor 82 receive the next optical signal of emission sensor transmission and turned by optical signal Turn to the signal of telecommunication.

Receiving sensor 82 and by spring contact strip 5, the signal of telecommunication is transferred to spring contact 4, then spring contact 4 retransmits To the governor circuit module in control circuit unit 2, governor circuit module converts electrical signals to digital signal, then by indigo plant Tooth module sends to intelligent terminal (such as smart mobile phone, computer etc.), is the most further checked or processes.Power circuit Module can be that other module on pcb board provides electric energy, and this is prior art, therefore, no longer illustrates.

Last it is noted that above-described each embodiment is merely to illustrate the technical solution of the utility model, rather than It is limited；Although this utility model being described in detail with reference to previous embodiment, those of ordinary skill in the art It is understood that the technical scheme described in previous embodiment still can be modified by it, or to the most part or all of Technical characteristic carries out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from this utility model The scope of each embodiment technical scheme.

Claims (10)

1. a photoplethysmographic signal acquisition process fingerstall, it is characterised in that: include that data process end and data acquisition Collection end,

Described data process end and include control circuit unit and slide, peripheral two the relative sides of described slide be provided with to First slide rail of outer extension；

Described data acquisition end includes base, silica gel strip, sensor and non-woven fabrics；One side of described base is provided with out Mouthful, the inner side of two sides adjacent with described opening is provided with the second chute matched with described first slide rail；Described base It is connected with described silica gel strip, described silica gel strip is fixedly connected with the described sensor for acquired volume pulse wave signal；Institute Stating non-woven fabrics and include fixing end and the free end that can be fixed on finger by described silica gel strip, the fixing end of described non-woven fabrics is fixed It is connected on described base；

Described slide is coordinated with described second chute by described first slide rail with described base and fixes and be connected.

Photoplethysmographic signal acquisition process fingerstall the most according to claim 1, it is characterised in that: outside described slide Enclosing and be additionally provided with the first chute on relative two side, described first chute is arranged at the inner side of described first slide rail and with described First slide rail connects；

The inner side of two sides adjacent with described opening on described base is additionally provided with second matched with described first chute Slide rail, described second slide rail is arranged at the outside of described second chute and is connected with described second chute.

Photoplethysmographic signal acquisition process fingerstall the most according to claim 1 and 2, it is characterised in that: the described end The both sides of seat are provided with the protuberance extended to direction, silica gel strip place；Described silica gel strip is connected in the protuberance of described base both sides Between.

Photoplethysmographic signal acquisition process fingerstall the most according to claim 3, it is characterised in that: described sensor Including emission sensor and reception sensor, described silica gel strip is provided with one end of emission sensor and is fixedly connected on described protuberance Between, described silica gel strip is provided with one end of reception sensor and stretches out outside described base.

Photoplethysmographic signal acquisition process fingerstall the most according to claim 4, it is characterised in that: described protuberance Being provided with fixing hole, the fixing end of described non-woven fabrics is fixedly connected in described fixing hole.

Photoplethysmographic signal acquisition process fingerstall the most according to claim 5, it is characterised in that: described base Both sides are respectively provided with two protuberances, and the non-woven fabrics on two protuberances that described silica gel strip both sides are relative coordinates by setting The silica gel strip stating sensor is fixed on described finger.

Photoplethysmographic signal acquisition process fingerstall the most according to claim 1, it is characterised in that: described non-woven fabrics On be compounded with adhesive layer, the non-woven fabrics on protuberance that described silica gel strip both sides are relative connects by adhesive layer is fixing.

Photoplethysmographic signal acquisition process fingerstall the most according to claim 6, it is characterised in that: at described data Reason end also includes that spring contact, described spring contact are arranged at the slide side towards described base；Described spring contact with Described control circuit unit connects；

Described data acquisition end also includes that spring contact strip, described spring contact strip are arranged at the base side towards described slide； Described spring contact strip is connected with described sensor；

Described slide matches with described base and makes described spring contact strip electrically connect with described spring contact.

Photoplethysmographic signal acquisition process fingerstall the most according to claim 1, it is characterised in that: described control electricity Road unit includes pcb board and the governor circuit module, power circuit block and the bluetooth module that are arranged on described pcb board, institute State governor circuit module to be connected with described power circuit block and described bluetooth module.

Photoplethysmographic signal acquisition process fingerstall the most according to claim 9, it is characterised in that: described pcb board On be additionally provided with switch contact and display lamp.