The utility model content
For one of addressing the above problem, this utility model provides a kind of Fingerstall-type blood oxygen measuring apparatus, and it not only can reduce surrounding light effectively on the impact of measurement result, and is easy to dismounting.
The technical scheme that adopts that solves the problems of the technologies described above provides a kind of Fingerstall-type blood oxygen measuring apparatus, comprise upper shell, middle shell, lower house, detecting unit and finger cavity volume, described upper shell, described middle shell and the lower house of being connected connect successively, described lower house adopts silica gel to make, and the finger cavity volume is formed between the opposite face of described lower house and described middle shell.
Preferably, described lower house is connected with described middle shell in the mode of gluing or connector.
Preferably, the periphery of the opposite face of described upper shell and described middle shell is respectively upper shell electrolysis and middle shell electrolysis, the edge of described lower house is crimped between described upper shell electrolysis and the middle shell electrolysis, thereby described lower house is connected with described middle shell.
Preferably, described lower house comprises arc section and connecting portion, and described arc section protrudes towards the direction opposite with described middle shell, and described connecting portion is crimped between described upper shell electrolysis and the described middle shell electrolysis.
Preferably, described lower house also comprises extension, and described extending part is between described connecting portion and described arc section, and the interior profile of described extension is identical with the shape of the outline of corresponding with it described middle shell part.
Preferably, described middle shell comprises first and second portion, wherein, the horizontal external diameter of described first equates with the horizontal external diameter of described lower house, the horizontal external diameter of described second portion is less than the horizontal external diameter of described first, and the longitudinal length of the longitudinal length of described second portion and described lower house about equally, the extension of described lower house is the outer surface of the second portion of described middle shell parcel, the connecting portion of described lower house with the electrolysis of the second portion of described middle shell with the electrolysis of described upper shell corresponding to its position between gap sealing.
Preferably, also comprise sealing gasket, described sealing gasket is arranged between the electrolysis of the electrolysis of first of described middle shell and described upper shell, and with the gap sealing between the electrolysis of the electrolysis of the first of described middle shell and the described upper shell relative with its position; Be provided with the second locating hole at described sealing gasket, be provided with the second locating dowel at the electrolysis of described middle shell and the position relative with described the second locating hole, described the second locating dowel and described the second locating hole are complementary.
Preferably, described sealing gasket is connected with described connecting portion, and described sealing gasket and described lower house are structure as a whole.
Preferably, be provided with towards the recessed recess of described upper shell direction in the described middle shell position relative with the arc section of described lower house, described recess is along vertical setting of described middle shell.
Preferably, be provided with the location division in the rear end of described finger cavity volume, described location division is used for determining that finger stretches into the position of described finger cavity volume.
Preferably, described upper shell and described middle shell are to be connected by screw, particularly, be provided with the first connecting hole that runs through its thickness at described middle shell, be provided with the first joint pin at the lower surface of described upper shell and the position relative with described the first connecting hole, and be provided with the screw thread that matches with described screw in described the first joint pin, described screw passes described the first connecting hole and described threaded engagement, thereby described upper shell is connected with described middle shell.
Preferably, the photo-detector, the data processing circuit that are used for measurement pulse and blood oxygen saturation are arranged in the described middle shell, luminous tube is arranged in the described lower house, bottom in described arc section is provided with luminous tube seat and metallic channel, described luminous tube seat and metallic channel protrude towards the direction opposite with described middle shell, described luminous tube is arranged in the described luminous tube seat, is arranged in the described metallic channel for the wire that connects described luminous tube and described data processing circuit.
Preferably, be provided be used to the battery compartment that holds battery in the rear end of described upper shell, described battery compartment is horizontally set in the described upper shell.
The utlity model has following beneficial effect:
The split-type structural that the Fingerstall-type blood oxygen measuring apparatus that this utility model provides adopts upper shell, middle shell, lower house to connect successively is conducive to the dismounting of Fingerstall-type blood oxygen measuring apparatus; Be formed between lower house and the middle shell for the finger cavity volume that holds finger, and lower house adopts silica gel to make, lower house can reduce the space between finger and the finger cavity volume, enters the finger cavity volume thereby effectively reduce surrounding light, and then can improve the accuracy of measurement result.Therefore, the certainty of measurement of the Fingerstall-type blood oxygen measuring apparatus that this utility model provides is high, and is easy to dismounting.
The specific embodiment
For making those skilled in the art understand better the technical solution of the utility model, below in conjunction with accompanying drawing the Fingerstall-type blood oxygen measuring apparatus that this utility model provides is described in detail.
Fig. 2 is the structure diagram of this utility model embodiment Fingerstall-type blood oxygen measuring apparatus.Fig. 3 is the exploded view of this utility model embodiment Fingerstall-type blood oxygen measuring apparatus.See also Fig. 2 and Fig. 3, blood oxygen measuring device comprises housing, finger cavity volume 14 and is arranged on the interior detecting unit of housing, wherein, housing comprises upper shell 11, middle shell 12 and lower house 13, and upper shell 11, middle shell 12 are connected with lower house and are connected successively from top to bottom, finger cavity volume 14 is formed between the opposite face of middle shell 12 and lower house 13, and namely the upper surface of the lower surface of middle shell 12 and lower house 13 surrounds finger cavity volume 14.
Detecting unit comprises luminous tube (not shown), photo-detector 27, data processing unit, battery 20 and display screen 16, wherein, battery 20 and display screen 16 are arranged in the upper shell 11, photo-detector 27 and data processing unit are arranged in the middle shell 12, and photo-detector 27 is connected with data processing unit, and luminous tube is arranged in the lower house 13.
For ease of describing, in the present embodiment, the front end of Fingerstall-type blood oxygen measuring apparatus (front side) refers to point insert port one end of cavity volume 13, and the other end on the other side is the rear end (rear side) of Fingerstall-type blood oxygen measuring apparatus.From front end to the back-end, the left-hand side is the left side of Fingerstall-type blood oxygen measuring apparatus, and right-hand side is the right side of Fingerstall-type blood oxygen measuring apparatus.The line of the front-end and back-end of Fingerstall-type blood oxygen measuring apparatus is the vertical of Fingerstall-type blood oxygen measuring apparatus, and the left side of Fingerstall-type blood oxygen measuring apparatus and right side line are the horizontal of Fingerstall-type blood oxygen measuring apparatus.Upper shell 11 is positioned at the top of Fingerstall-type blood oxygen measuring apparatus, and lower house 13 is positioned at the below of Fingerstall-type blood oxygen measuring apparatus.
Fig. 4 is the view in transverse section of this utility model embodiment Fingerstall-type blood oxygen measuring apparatus, and Fig. 5 is the view in transverse section utility model utility model of the part-structure of this utility model embodiment Fingerstall-type blood oxygen measuring apparatus.Wherein, Fig. 5 is the cross section that passes photo-detector, and Fig. 4 is the cross section between photo-detector and battery compartment.See also Fig. 3 to Fig. 5, upper shell 11 is to link together by securing member with middle shell 12, and lower house 13 is connected by gluing or connector with middle shell 12.Certainly, lower house 13 also can be crimped between upper shell 11 and the middle shell 12.Particularly:
As shown in Figure 4, lower house 13 comprises arc section 35 and connecting portion 36, and arc section 35 protrudes towards the direction opposite with middle shell 12, that is, arc section 35 protrudes towards the below of Fingerstall-type blood oxygen measuring apparatus.Connecting portion 36 is arranged on left side, right side and the rear side of arc section 35, namely other side except described finger cavity volume inlet side all arranges connecting portion 36, connecting portion 36 is used for making lower house 13 to connect middle shell 12, and is crimped between the electrolysis of upper shell 11 electrolysis and middle shell 12.
Preferably, lower house 13 also comprises extension 37, extension 37 is between connecting portion 36 and arc section 35, and the interior profile of extension 37 is identical with the shape of the outline of corresponding with it middle shell 12 parts, can make like this more compact structure of Fingerstall-type blood oxygen measuring apparatus, reduce the volume of Fingerstall-type blood oxygen measuring apparatus, thereby be easy to carry.
Need to prove that in the present embodiment, lower house 13 also can not arrange arc section 35, namely lower house 13 is the slab construction that does not have arc section, but in actual applications, arc section 35 is set is conducive to finger is stretched in the finger cavity volume 14.
See also Fig. 3, be provided with the first locating hole 41 at connecting portion 36, be provided with the first locating dowel 40 at the electrolysis of middle shell 12 and the position relative with the first locating hole 41, and first locating hole 41 and the first locating dowel 40 be complementary, by the first locating hole and the first locating dowel middle shell 12 and lower house 13 are accurately located, thereby be conducive to the assembling process of Fingerstall-type blood oxygen measuring apparatus.Need to prove that the quantity of the first locating dowel 40 and the first locating hole 41 is not limited to two, also can be three or more, and the quantity of the first locating dowel 40 and the first locating hole 41 equates.
In the present embodiment, lower house 13 adopts silica gel to make.Because silica gel has good elasticity, it can seal the slit between the electrolysis of upper shell 11 electrolysis and middle shell 12 well, thereby avoids liquid or dust to enter the inside of Fingerstall-type blood oxygen measuring apparatus from the electrolysis of upper shell 11 and middle shell 12; Secondly, the volume of finger cavity volume 14 is increased or dwindle, thereby increase the subject range of Fingerstall-type blood oxygen measuring apparatus, all can use such as the different user of finger thickness; The 3rd, can improve Fingerstall-type blood oxygen measuring apparatus anti-ly fall, anti-seismic performance.In addition, the most surfaces of the middle shell 12 of present embodiment is by extension 37 parcels of lower house 13, and this can reduce the probability of middle shell 12 and other object contact, thereby improves the service life of Fingerstall-type blood oxygen measuring apparatus; And the touch sense that can improve Fingerstall-type blood oxygen measuring apparatus.The 4th, the contractility of silica gel can make lower house and finger close contact, enters the finger cavity volume thereby reduce surrounding light, and then can improve the accuracy of measurement result.
In the present embodiment, in order to make the more compact structure of Fingerstall-type blood oxygen measuring apparatus, middle shell 12 is divided into the 12a of first and second portion 12b at its longitudinal direction, wherein, the horizontal external diameter of the 12a of first equates with the horizontal external diameter of lower house 13, the horizontal external diameter of second portion 12b is less than the horizontal external diameter of the 12a of first, the longitudinal length of the longitudinal length of second portion 12b and lower house 13 about equally, the extension 37 of lower house 13 is with the outer surface of the second portion 12b of middle shell 12 parcel.
Present embodiment, because the longitudinal length of lower house 13 is shorter than the longitudinal length of middle shell 12, therefore, the connecting portion 36 of lower house 13 can only be with the gap sealing between the electrolysis of part upper shell 11 electrolysis and middle shell 12, namely can only with the electrolysis of the second portion 12b of middle shell 12 with the electrolysis of upper shell 11 corresponding to its position between gap sealing, and the electrolysis corresponding with the 12a of first of middle shell 12 do not have sealed.
For this reason, present embodiment also is provided with " U " grommet type seal 47, sealing gasket 47 adopts elastomeric material to make, it is arranged between the electrolysis of the 12a of the first electrolysis of middle shell 12 and upper shell 11, sealing gasket 47 with the 12a of the first electrolysis of middle shell 12 with the electrolysis of upper shell 11 corresponding to its position between gap sealing.
In addition, in the present embodiment, be provided with the second locating hole 48 at sealing gasket 47, at the electrolysis of middle shell 12 and the position relative with the second locating hole 48 is provided with the second locating dowel 49, the second locating dowels 49 and the second locating hole 48 is complementary.In the process of fitting tight pad 47, by the second locating hole 48 be connected locating dowel 49 sealing gasket 47 is connected with middle shell 12, and then sealing gasket 47 can be placed on exactly the relevant position of the electrolysis of upper shell 11 and middle shell 12.Be appreciated that on the electrolysis of sealing gasket 47 and middle shell 12 a plurality of the second locating holes 48 and the second locating dowel 49 can be set respectively accordingly.
Preferably, sealing gasket 47 is made into integrative-structure with lower house 13, the plane at sealing gasket 47 places and the upper plane of connecting portion 36 are on the same plane, sealing gasket 47 forms closed annular ring jointly with the top of the connecting portion 36 of lower house 13, thereby the electrolysis of whole upper shell 11 and middle shell 12 is covered.
See also Fig. 2, be provided with to hold the first spatial accommodation 15a of display screen 16 at the middle part of upper shell 11.Above display screen 16, be provided with to protect the measuring instrument end cap 17 of display screen 16.Electrolysis at display screen 16 and upper shell 11 is provided with the first sealing gasket 18a, and the first sealing gasket 18a can prevent effectively that dust and water from entering in the upper shell 11, thereby improves the water proofing property of Fingerstall-type blood oxygen measuring apparatus.
Be provided be used to the battery compartment 21 that holds battery 20 in the position near upper shell 11 rear ends, battery compartment 21 is conducive to arrange larger sized display screen 16 like this along upper shell 11 horizontally sets, and then increases the font that shows.The left and right sides in battery compartment 21 is respectively equipped with an electric connecting sheet 22.Above battery compartment 21, be provided with battery cabin cap 23, in order to hide the opening of battery compartment 21.Electrolysis at battery cabin cap 23 and battery compartment 21 is provided with the second sealing gasket 18b, in order to the gap sealing between battery cabin cap 23 electrolysis and upper shell 11 electrolysis, avoiding dust and water to enter in the battery compartment 21, thereby improve the water proofing property of Fingerstall-type blood oxygen measuring apparatus.Be provided with on the top of battery cabin cap 23 for the battery cabin cap of opening battery cabin cap 23 and release the button 24.
Be provided with the second spatial accommodation 15b in middle shell 12, data processing circuit 26 and photo-detector 27 are arranged on the second spatial accommodation 15b, and data processing circuit 26 is fixed in the middle shell 12 by screw 30.Data processing circuit 26 is connected with display screen 16, battery 20, photo-detector 27, data processing circuit 26 receives the signal of photo-detector 27 and processes, obtain pulse and blood oxygen saturation, then export pulse and blood oxygen saturation to display screen 16, the gauger can read pulse and blood oxygen saturation intuitively from display screen 16.
Need to prove that in the present embodiment, photo-detector 27 is arranged in the middle shell 12, luminous tube is arranged in the lower house 13.But in actual applications, the setting position of photo-detector 27 and luminous tube can be exchanged, and is about to photo-detector 27 and is arranged in the lower house 13, and luminous tube is arranged in the middle shell 12, can obtain exactly blood oxygen saturation and pulse equally.
Be used for startup and be connected with data processing circuit 26 with the power knob 25 of being connected Fingerstall-type blood oxygen measuring apparatus, power knob 25 stretches out from the button pass through hole 19 that is arranged on upper shell 11 front ends, can easily Fingerstall-type blood oxygen measuring apparatus be started or close like this.
See also Fig. 4, for the ease of finger being stretched into finger cavity volume 14, the porch of pointing cavity volume 14 at the front end of middle shell 12 is provided with towards the recessed recess 43 of upper shell direction, and recess 43 has increased the entrance of finger cavity volume 14 with the arc section 35 of lower house 13, points cavity volume 14 thereby be beneficial to point to stretch into.
Rear end at finger cavity volume 14 is provided with the location division (not shown), and it is used for the finger position that inserts finger cavity volume 14 is positioned.When the finger tip of user touches the location division, can determine to point this moment residing position for measuring the ideal position of blood oxygen levels.Be understood that the measuring process of Fingerstall-type blood oxygen measuring apparatus has been simplified in the location division.
See also Fig. 5, upper shell 11 is connected by trip bolt 33 with middle shell 12, certainly, also can adopt other securing member connections such as bolt.Particularly, be provided with the first connecting hole 31 that runs through its thickness at middle shell 12, be provided with the first joint pin 32 at the lower surface of upper shell 11 and the position relative with the first connecting hole 31, in the first joint pin 32, be provided with the screw thread that matches with trip bolt 33, trip bolt 33 passes the first connecting hole 31 and threaded engagement, thereby upper shell 11 is connected with middle shell 12.
Fig. 6 is the upward view of this utility model embodiment Fingerstall-type blood oxygen measuring apparatus, and Fig. 7 is the longitdinal cross-section diagram of this utility model embodiment Fingerstall-type blood oxygen measuring apparatus.See also Fig. 6 and Fig. 7, be provided with luminous tube seat 45 and metallic channel 46 in the bottom of lower house 13, luminous tube seat 45 and metallic channel 46 protrude towards the direction opposite with middle shell 12, namely protrude towards the below of Fingerstall-type blood oxygen measuring apparatus, luminous tube is arranged in the luminous tube seat 45, and the wire that is used for connection luminous tube and data processing circuit 26 is arranged in the metallic channel 46.After luminous tube being put into luminous tube seat 45, with the top seal of transparent silica gel with luminous tube seat 45.Transparent silica gel not only can avoid water and dust to enter luminous tube seat 45, and can not affect the brightness that luminous tube emits beam.
The split-type structural that the Fingerstall-type blood oxygen measuring apparatus that present embodiment provides adopts upper shell, middle shell, lower house to connect successively is conducive to the dismounting of Fingerstall-type blood oxygen measuring apparatus; Be formed between lower house and the middle shell for the finger cavity volume that holds finger, and lower house adopts silica gel to make, lower house can reduce the space between finger and the finger cavity volume, enters the finger cavity volume thereby reduce surrounding light, and then can improve the accuracy of measurement result.Therefore, the certainty of measurement of the Fingerstall-type blood oxygen measuring apparatus that this utility model provides is high, and is easy to dismounting.
Be understandable that above embodiment only is the illustrative embodiments that adopts for principle of the present utility model is described, yet this utility model is not limited to this.For those skilled in the art, in the situation that does not break away from spirit of the present utility model and essence, can make various modification and improvement, these modification and improvement also are considered as protection domain of the present utility model.