CN115429264B

CN115429264B - Oximeter and blood oxygen monitoring method

Info

Publication number: CN115429264B
Application number: CN202211385163.7A
Authority: CN
Inventors: 曹丽平
Original assignee: Shenzhen Yimi Life Technology Co ltd
Current assignee: Shenzhen Yimi Life Technology Co ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-01-20
Anticipated expiration: 2042-11-07
Also published as: CN115429264A

Abstract

The invention relates to an oximeter and a blood oxygen monitoring method, belonging to the technical field of oximeters, which comprises a shell, wherein a blood oxygen measuring device and a sterilizing device are arranged in the shell, the blood oxygen measuring device comprises an adjusting mechanism and a measuring mechanism, one end of the measuring mechanism, which is used for inserting a finger, is hinged in the shell, one side of the shell is also provided with a supporting platform, the supporting platform and the measuring mechanism are matched, when one finger of a person is inserted into the measuring mechanism, the hand of the person is in a relaxed state that the hand is supported by the supporting platform and the finger is bent downwards, the adjusting mechanism is used for drawing a blood oxygen probe in the measuring mechanism to be right opposite to the fingernail of the finger, the sterilizing device is used for sterilizing and wiping the measuring mechanism after the measuring mechanism finishes one-time measurement, the sterilizing action is formed by spraying atomized disinfectant into the measuring mechanism and wiping the inside of the measuring mechanism through a wiping cotton head, the inside of the measuring mechanism is in a cylindrical shape, and the wiping cotton head is in a circular ring shape.

Description

Oximeter and blood oxygen monitoring method

Technical Field

The invention relates to the field of oximetry, in particular to an oximeter and a blood oxygen monitoring method.

Background

Oximeter is a medical instrument for measuring data such as oxyhemoglobin saturation, pulse, and its uses the back, need disinfect and wipe to avoid blood oxygen probe to receive sweat stain etc. pollution on the patient's finger last time and cover, influence next use, the disinfection mode of easily thinking among the prior art is: wipe the disinfection through antiseptic solution and medical cotton swab cooperation to the inside of oximetry, this kind of mode has following not enough: the internal area of the oximeter is large, when wiping, if the cotton swab head of the medical cotton swab is only stained with the disinfectant, namely the disinfectant on the cotton swab head is not much, then when wiping and disinfecting, the two actions of staining the disinfectant on the cotton swab and stretching into the oximeter to wipe and disinfect the cotton swab are needed to be carried out repeatedly, and the efficiency is too low; if the cotton swab head of medical cotton swab is soaked in the antiseptic solution, the inside infiltration of cotton swab head is full of antiseptic solution promptly, then do not need to carry out repeatedly that the cotton swab is stained with this action of antiseptic solution, but the medical cotton swab that permeates full of antiseptic solution is when using, exert oneself a little, extrusion between cotton swab head and the oximeter will lead to the antiseptic solution from dripping to the oximeter inside in the cotton swab head, and still be the drop of water state, after the disinfection is wiped, the antiseptic solution remains and is hardly dried in the oximeter, and exert oneself too lightly, the dirt of oximeter inside is cleared up unclean, the disinfection is wiped poorly, exert oneself too much, then aggravated the phenomenon that above-mentioned antiseptic solution drips from the cotton swab head.

The applicant finds a chinese utility model patent, the publication number of which is CN214718688U, which discloses a cleaning and disinfecting device for oximeter maintenance, through arranging a suction cup on the inner wall of the bottom of a cleaning box, the oximeter body is adsorbed and fixed, and then disinfected alcohol is sprayed, the cleaning sponge is pushed to the inside of the cleaning box, the oximeter body can be cleaned and disinfected by rotating the cleaning sponge, on one hand, it can be known that disinfection treatment on the oximeter is necessary, on the other hand, the patent discloses the whole concept of oximeter disinfection, but in combination with the carrier for spraying disinfected alcohol in the patent, namely, the position characteristic description of an atomizing nozzle, and in combination with the attached drawing 1 in the patent, the disinfected alcohol sprayed by the atomizing nozzle is only simply sprayed on the outer surface of the oximeter, the disinfected alcohol is not sprayed into the oximeter, or in the case that the disinfected alcohol is sprayed downward in an atomizing form and the oximeter is only slightly sprayed, the disinfection effect of the disinfection is only slightly increased by force, the disinfection effect of the disinfection of the sponge is achieved by manually wiping the inner part of the oximeter, and the problem that the disinfection is not increased by the simple phenomenon that the disinfection of the hand-held disinfection of the oximeter.

Based on this, the invention provides an oximeter and a blood oxygen monitoring method.

Disclosure of Invention

In order to solve the above mentioned problems, the present invention provides an oximeter and a blood oxygen monitoring method.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows.

A blood oxygen monitoring method of an oximeter comprises the following steps:

the method comprises the following steps: the fingers are inserted into the sleeve and the palm is supported by the supporting platform; step two: the image recognition sensors in the left and right mounting units photograph and recognize the fingers and transmit the result to a control mainboard arranged in the shell, the control mainboard sends a signal to a motor I, and the motor I operates to drive the sleeve to move so that the finger nails are opposite to the blood oxygen probe; step three: the supply unit injects air into the cylinders in the left and right mounting units to enable the piston, the piston rod and the mounting seat to move towards the finger until the cambered surface of the mounting seat is contacted with the finger, the finger is clamped by the cambered surfaces of the mounting seats in the left and right mounting units, in the process, the distance between the cambered surface of the mounting seat and the finger is sensed by the distance sensor, and the air is stopped being injected into the cylinders when the distance is zero; step four: the supply unit injects air into the cylinders in the upper and lower mounting units to enable the piston, the piston rod, the mounting seat and the blood oxygen probe to move towards the finger until the distance between the blood oxygen probe and the finger is a preset value, and the blood oxygen measurement is carried out on the finger nail through the blood oxygen probe; step five: after the measurement is finished, air in the four groups of mounting units is exhausted through the supply unit, and the blood oxygen measuring device is reset.

The steps of the disinfection and wiping process of the cannula are as follows:

the method comprises the following steps: starting the magnetic suspension unit to enable the sleeves to be horizontally arranged; step two: the threaded rod is driven to move along the axial direction through the matching of the motor III, the motor IV, the power connecting piece I and the power connecting piece II, the threaded rod moves to drive the atomizing nozzle to move towards the sleeve, when the atomizing nozzle is arranged in the sleeve, the supply unit sprays disinfectant to the inner wall of the sleeve in an atomizing mode through the atomizing nozzle, after the spraying is finished, the threaded rod is driven to move reversely along the axial direction through the matching of the motor III, the motor IV, the power connecting piece I and the power connecting piece II, and the air bag stops moving when the air bag is positioned in the supporting hole; step three: the supply unit injects air into the air bag, and the air bag expands to clamp and wipe the cotton head; step four: the threaded rod is driven to move axially through the cooperation of the motor III, the motor IV, the power connecting piece I and the power connecting piece II, when the wiping cotton head moves into the free end of the sleeve, the supply unit injects air into the air bag again to enable the air bag to generate an expansion trend, so that the pressure of the wiping cotton head on the inner wall of the sleeve is increased, then through the cooperation of the motor III, the motor IV, the power connecting piece I and the power connecting piece II, the threaded rod is driven to rotate around the shaft and move axially at the same time to wipe the inner wall of the sleeve, and after the wiping cotton head finishes wiping the sleeve for one time, through the cooperation of the motor III, the motor IV, the power connecting piece I and the power connecting piece II, the threaded rod is driven to rotate around the shaft and move backwards along the axial direction at the same time to wipe the sleeve for the second time; meanwhile, the second motor drives the two groups of baffles to approach each other until the diameter of the area between the two groups of baffles is larger than the diameter of the air bag after air is emptied and smaller than the outer diameter of the wiping cotton head; step five: after the cleaning cotton head leaves the sleeve, the threaded rod is driven to retreat along the axial reverse movement to reset through the cooperation of the motor III, the motor IV, the power connecting piece I and the power connecting piece II, meanwhile, air in the air bag is discharged through the supply unit, the clamping of the cleaning cotton head is cancelled, when the baffle is arranged on the way, the threaded rod, the air bag and the atomizing nozzle can smoothly pass through, and the cleaning cotton head drops from the air bag due to the obstruction of the baffle.

Compared with the prior art, the invention has the beneficial effects that:

in the blood oxygen measurement process in the scheme: the fingers are inserted into the sleeves, the palms are supported by the supporting platform, and the sleeves can rotate along the axial direction of the rotation of the first movable frame and the axial direction of the rotation of the second movable frame, so that the hands are in a relaxed state that the palms are supported by the supporting platform and the fingers bend downwards, the relaxed state is similar to a state that the hands are naturally placed on a table top, on one hand, a patient feels more comfortable and experiences better in the measurement process, and on the other hand, the accuracy of a blood oxygen measurement result is improved under the relaxed state of the patient;

it is worth noting that the disinfection and wiping process of the casing pipe by the scheme is as follows: the disinfecting and wiping action is composed of spraying atomized disinfectant into the sleeve and wiping the interior of the sleeve by a wiping cotton head, wherein the disinfectant can be distributed in the sleeve in an atomized form, the sleeve can be wiped and disinfected by the wiping cotton head, and the interior of the sleeve after wiping and disinfecting is dry, the action interval between the disinfectant and the wiping cotton head can sterilize and disinfect the interior of the sleeve on one hand, and dirt in the sleeve on the other hand is soaked by the disinfectant in a drenching manner, so that the dirt can be cleaned in the subsequent wiping action;

in addition, in the scheme, the atomizing nozzle or the wiping cotton head is pulled to extend into or leave the sleeve through the threaded rod, the structure is specially designed, under the coordination of the motor III, the motor IV, the power connecting piece I and the power connecting piece II, the threaded rod can be driven to have axial movement only, or the threaded rod can be driven to have axial rotation only, or the threaded rod can be driven to rotate around the shaft while moving axially, and the rotation of the threaded rod can be changed during the movement process, wherein the linear movement has higher speed compared with the rotation and the movement at the same time.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of an oximeter;

FIG. 4 is an exploded view of the measurement mechanism;

FIG. 5 is a cross-sectional view of the mounting unit;

FIG. 6 is a schematic view of the blood oxygen probe, the image sensor and the mounting base;

FIG. 7 is a schematic structural view of an adjustment mechanism;

FIG. 8 is a schematic view of the connections of the connecting body to the conduits between the four sets of mounting units;

FIG. 9 is a schematic structural diagram of a magnetic levitation unit;

FIG. 10 is a schematic view of the construction of the disinfection device;

FIG. 11 is a schematic structural view of a cotton pulling member;

FIG. 12 is a schematic view of the post and wiping head;

FIG. 13 is a schematic view of the sterilizing mechanism;

FIG. 14 is a schematic view of a threaded rod, a first driven pulley, and a second driven pulley;

FIG. 15 is a schematic view of a threaded rod, atomizer head, and bladder;

FIG. 16 is a schematic view of an atomizer, an air bag, a third conduit, and a fourth conduit;

fig. 17 is a schematic view of the structure of the supply unit.

The reference numbers in the drawings are: 100. a housing; 101. a saddle; 102. a display screen; 103. an air pump; 104. a sterilizing tank; 105. a dispensing valve; 106. a fifth pipeline; 107. a sixth pipeline; 108. a liquid injection pipe; 109. a tube cover; 200. a blood oxygen measuring device; 201. an adjustment mechanism; 202. a measuring mechanism; 203. a magnetic suspension unit; 204. a first movable frame; 205. a second movable frame; 206. a sleeve; 207. a mounting unit; 208. a cylinder body; 209. a cylinder cover; 210. a binding post; 211. a piston; 212. a piston rod; 213. a mounting seat; 214. a spring; 215. a magnet; 216. a blood oxygen probe; 217. an image recognition sensor; 218. A distance sensor; 219. a first fixing frame; 220. a second fixing frame; 221. a first screw rod; 222. a guide bar; 223. a first motor; 224. a power transmission member; 225. a connector; 226. sealing the cover; 227. a first air groove; 228. a second air tank; 229. a first pipeline; 230. a second pipeline; 231. dividing pipelines; 232. a frame; 233. an electromagnet; 300. a sterilizing device; 301. a sterilizing mechanism; 302. pulling the cotton component; 303. a guide slide; 304. a column; 305. a second motor; 306. a second screw rod; 307. a baffle plate; 308. wiping the cotton head; 309. a third pipeline; 310. a fourth pipeline; 311. a third fixing frame; 312. a third motor; 313. a fourth motor; 314. a first power connecting piece; 315. a second power connecting piece; 316. a threaded rod; 317. an atomizing spray head; 318. an air bag.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

As shown in fig. 1-17, an oximeter comprises a housing 100, and a blood oxygen measuring device 200 and a sterilizing device 300 are disposed in the housing 100.

The blood oxygen measuring device 200 is used for measuring blood oxygen of a person, a detection part is a finger, one side of the shell 100 is provided with the pallet 101, the pallet 101 is used for supporting a palm after the finger is inserted into the blood oxygen measuring device 200, so that the hand of the person can be in a relaxed state during blood oxygen measurement, and accuracy of a blood oxygen measurement result is improved favorably.

Sterilizing device 300 is used for disinfecting and wiping measuring mechanism 202 after measuring mechanism 202 finishes a measurement, when guaranteeing next measurement, measuring mechanism 202 is inside clean, and the disinfection is sprayed atomizing antiseptic solution to measuring mechanism 202 is inside and is wiped measuring mechanism 202 through wiping cotton head 308 and constitutes, and wherein, measuring mechanism 202's inside is the cylinder shape, wipes cotton head 308 and is the annular shape.

The disinfection modes easily conceivable in the prior art are: the inside of the measuring mechanism 202 is wiped and disinfected by matching the disinfectant with the medical cotton swab, which has the following disadvantages: the internal area of the measuring mechanism 202 is large, and when wiping is performed, if the swab head of the medical swab is only stained with disinfectant, namely, the disinfectant on the swab head is not much, two actions of staining the disinfectant on the swab and stretching into the measuring mechanism 202 to wipe and disinfect are required to be performed repeatedly during wiping and disinfection, so that the efficiency is too low; if the swab head of the medical swab is soaked in the disinfectant, namely the disinfectant is permeated into the swab head, the action that the disinfectant is stained with the disinfectant on the swab head does not need to be repeated, but when the medical swab permeated with the disinfectant is used, a little force is applied, the disinfectant is dripped into the measuring mechanism 202 from the swab head due to the extrusion between the swab head and the measuring mechanism 202 and still is in a water droplet state, after disinfection and wiping, the disinfectant is remained in the measuring mechanism 202 and is difficult to dry, the force is too light, dirt in the measuring mechanism 202 is not cleaned, the disinfection and wiping effect is poor, and the phenomenon that the disinfectant is dripped from the swab head is aggravated due to too large force.

In the scheme, the disinfecting and wiping action is formed by spraying atomized disinfectant into the measuring mechanism 202 and wiping the inside of the measuring mechanism 202 through the wiping cotton head 308, the atomized disinfectant can be distributed in the measuring mechanism 202, the wiping and disinfecting of the measuring mechanism 202 can be realized by the latter, the inside of the measuring mechanism 202 after being wiped and disinfected is dry, the action interval between the atomized disinfectant and the dried wiping cotton head can sterilize and disinfect the inside of the measuring mechanism 202 through the disinfectant, on the other hand, dirt in the measuring mechanism 202 is soaked by the disinfectant, so that the dirt can be cleaned in the subsequent wiping action, besides, the wiping cotton head 308 is in a circular ring shape, the contact area between the wiping head and the inner wall of the measuring mechanism 202 is large, the wiping head rotates and advances, the wiping efficiency and the wiping effect are improved, the extrusion force of the wiping cotton head 308 on the inner wall of the measuring mechanism 202 can be adjusted, and the wiping effect is further ensured.

As shown in fig. 2 and 7, the adjusting mechanism 201 includes two sets of fixing frames: the first fixing frame 219 and the second fixing frame 220, the first fixing frame 219 is close to the avoidance opening, a first screw rod 221 and a guide rod 222 are arranged between the first fixing frame 219 and the second fixing frame 220, axial directions of the first fixing frame 219 and the second fixing frame 220 are both parallel to the length direction of the shell 100, and the adjusting mechanism 201 further comprises a first motor 223 and a power transmission piece 224 arranged between the first motor 223 and the first screw rod 221.

As shown in fig. 3, 4 and 7, the measuring mechanism 202 includes a sleeve 206, an inner cavity of the sleeve 206 is cylindrical, a second movable frame 205 is rotatably installed outside one end of the sleeve 206, a first movable frame 204 is rotatably installed outside the second movable frame 205, an axis of rotation of the first movable frame 204 is vertical, an axis of rotation of the second movable frame 205 is parallel to a width direction of the housing 100, the first movable frame 204 is in threaded connection with the first lead screw 221 and is in sliding connection with the guide rod 222, and when the first motor 223 operates to drive the first lead screw 221 to rotate, the first movable frame 204, the second movable frame 205 and the sleeve 206 all move together along an extending direction of the guide rod 222.

The installation unit 207 is arranged outside the sleeve 206, specifically, as shown in fig. 5, the installation unit 207 includes a cylinder 208 radially arranged on the outer surface of the sleeve 206 along the inner cavity of the sleeve 206, one end of the cylinder 208 is closed and connected with the sleeve 206, the other end of the cylinder 208 is open and is provided with a cylinder cover 209 in a matching manner, the cylinder cover 209 coaxially extends into the cylinder 208 to form a terminal 210, the terminal 210 is hollow inside, a piston 211 is arranged in the cylinder 208, the outer wall of the piston 211 and the inner wall of the cylinder 208 form a sealed sliding fit, the inner wall of the piston 211 and the outer wall of the terminal 210 form a sealed sliding fit, a piston rod 212 is arranged on one side of the piston 211 facing the sleeve 206, in order to avoid the terminal 210, the inner cavity of the piston rod 212 is hollow, an installation seat 213 is arranged on the end of the piston rod 212 facing away from the piston 211, an installation hole is radially arranged on the outer surface of the sleeve 206 along the inner cavity of the sleeve 206, the installation seat 213 is located in the installation hole, in an initial state, the surface of the installation seat 213 is coaxially coincided with the inner wall of the cylinder 206, a distance sensor 218 is arranged on the arc surface of the cylinder 208, and an avoidance hole for avoiding the piston rod 212 is arranged between the closed end 214 of the cylinder 208 and the piston rod.

As shown in fig. 5 and fig. 6, four sets of mounting units 207 are arranged along the circumferential direction of the inner cavity of the cannula 206, wherein the two sets of mounting units 207 on the upper and lower sides of the cannula 206 are: upper and lower mounting units, and the other two sets of mounting units 207 are: the blood oxygen probe 216 is installed on the face, opposite to the mounting seat 213, of the upper mounting unit and the lower mounting unit, the mounting seat 213 is provided with a probe groove, the blood oxygen probe 216 is arranged in the probe groove, the face, opposite to the mounting seat 213, of the left mounting unit and the right mounting unit is provided with the image recognition sensor 217, the mounting seat 213 is provided with a mounting groove, and the image recognition sensor 217 is arranged in the mounting groove.

The blood oxygen measuring process is characterized in that:

firstly, fingers are inserted into the sleeve 206 and the palm is supported by the pallet 101, and the sleeve 206 can rotate along the axial direction of the rotation of the first movable frame 204 and the axial direction of the rotation of the second movable frame 205, so that the hand is in a relaxed state that the palm is supported by the pallet 101 and the fingers bend downwards, and the relaxed state is similar to the state that the hand is naturally placed on a table top;

then, the image recognition sensor 217 in the left and right mounting units takes a picture of the finger to recognize and transmits the result to the control main board, the control main board sends a signal to the motor one 223, the motor one 223 drives the screw rod one 221 to rotate through the power transmission piece 224, the screw rod one 221 rotates to drive the movable frame one 204, the movable frame two 205 and the sleeve 206 to move until the finger nail is opposite to the image recognition sensor 217, namely opposite to the blood oxygen probe 216, then air is injected into the cylinder body 208 in the left and right mounting units to enable the piston 211 to move close to the sleeve 206, the piston 211 moves to drive the piston rod 212 and the mounting seat 213 to move together until the cambered surface of the mounting seat 213 is contacted with the finger, the finger is clamped through the cambered surfaces of the mounting seats 213 in the left and right mounting units, in the process, the distance between the cambered surface of the mounting seat 213 and the finger is sensed through the distance sensor 218, and when the distance is zero, the air is stopped being injected into the cylinder body 208, so as to avoid excessive clamping injury of the finger;

then, air is injected into the cylinder 208 in the upper and lower mounting units, so that the piston 211 moves close to the sleeve 206, the piston 211 moves to drive the piston rod 212, the mounting seat 213 and the blood oxygen probe 216 to move together until the distance between the blood oxygen probe 216 and the finger is a preset value, the air injection into the cylinder 208 is stopped, then the finger nail is subjected to blood oxygen measurement through the blood oxygen probe 216, the blood oxygen probe 216 is driven to move because the finger thickness of different people is different, the blood oxygen probe 216 is driven to move towards the finger, the distance between the blood oxygen probe 216 and the finger is an optimal measurement distance, so as to improve the accuracy of the measurement result, the optimal measurement distance is the preset value, the display screen 102 is arranged on the housing 100 and is used for displaying the blood oxygen measurement result, in addition, the terminal 210 is arranged, the piston rod 212 is hollow, and is used for connecting wires of the blood oxygen probe 216, the image recognition sensor 217 and the distance sensor 218, and a wire connecting hole for connecting with the inside of the terminal 210 is arranged on the side surface of the cylinder cover 209.

In the preferred embodiment, the sleeve 206 is inclined under the action of gravity, and in order to facilitate the free end of the disinfection device 300 to extend into the sleeve 206 for disinfection and wiping, a magnetic levitation unit 203 is further disposed in the housing 100, and the magnetic levitation unit 203 is used for enabling the sleeve 206 to be horizontally arranged, even if the axial direction of the sleeve 206 is parallel to the length direction of the housing 100, and is coaxially arranged with the disinfection device 300, so that the free end of the disinfection device 300 extends into the sleeve 206 for disinfection and wiping.

Specifically, as shown in fig. 9, the magnetic suspension unit 203 includes a frame 232 and electromagnets 233 disposed on the frame 232, the electromagnets 233 are opposite to the cylinder cover 209 of the mounting unit 207, and the cylinder cover 209 is provided with magnets 215, four groups of electromagnets 233 are disposed corresponding to the mounting unit 207, a magnetic field generated by energizing the four groups of electromagnets 233 is matched with the magnets 215 to horizontally dispose the casing 206, when the casing 206 is horizontally disposed, the axial direction of the casing is parallel to the length direction of the housing 100, specifically, the magnetic field strength of the electromagnets 233 corresponding to the left and right mounting units is the same, the difference between the magnetic field strength of the electromagnet 233 corresponding to the lower mounting unit and the magnetic field strength of the electromagnet 233 corresponding to the upper mounting unit, and the gravity of the casing 206 are offset with each other, so that the casing 206 is horizontally disposed.

As shown in fig. 10, the disinfecting device 300 is disposed on a side of the measuring mechanism 202 away from the avoiding opening, and the disinfecting device 300 includes a disinfecting mechanism 301 for spraying disinfectant liquid and wiping the inner wall of the cannula 206 with disinfectant liquid in sequence, and a cotton pulling member 302 for providing a wiping cotton head 308 to the disinfecting and wiping action of the disinfecting mechanism 301 and assisting the wiping cotton head 308 to leave from the disinfecting mechanism 301 after the disinfection is finished.

As shown in fig. 11 and 12, the cotton pulling member 302 includes a vertical column 304, the vertical column 304 is hollow and provided with a support plate, two side surfaces of the vertical column 304 along the length direction of the casing 100 are both provided with support holes, the upper end surface of the support plate is in an upward curved arc plate shape, the support plate and two sets of support holes are coaxially arranged, the upper opening end of the vertical column 304 extends out of the casing 100, and in addition, the sleeve 206 horizontally arranged with the aid of the magnetic suspension unit 203 is coaxially arranged with the support holes.

The wiping cotton head 308 is a circular ring, specifically, the wiping cotton head 308 is composed of an inner core made of an elastic material such as rubber and an outer cotton ring made of medical grade cotton, the outer cotton ring is coaxially arranged on the inner core, and the diameter of the wiping cotton head 308 is smaller than the aperture of the supporting hole.

The wiping cotton head 308 is thrown into the upright 304 through the upper open end of the upright 304 in a state axially parallel to the longitudinal direction of the housing 100, and the wiping cotton head 308 is finally supported by the support plate under the action of gravity, as illustrated in fig. 12.

The cotton pulling component 302 further comprises a ferrule slidably sleeved outside the upright post 304, a baffle 307 is arranged on one side of the ferrule facing the measuring mechanism 202, the large face of the baffle 307 is perpendicular to the length direction of the shell 100, two sets of ferrules are arranged along the extending direction of the upright post 304, two sets of baffles 307 are arranged corresponding to the ferrule, the opposite faces of the two sets of baffles 307 are in arc shapes, and the diameter of the arc face of the baffle 307 is smaller than that of the wiping cotton head 308.

One side of the ferrule extends with a lug, a second lead screw 306 which is vertically arranged is installed in the shell 100, the input end of the second lead screw 306 is connected with a second motor 305 which is arranged in the shell 100, the second lead screw 306 is axially divided into two thread sections with opposite spiral directions, the thread sections are in threaded connection with the lug, when the second motor 305 operates to drive the second lead screw 306 to rotate, the two sets of ferrules and the baffle 307 move away from or close to each other, and in an initial state, the support hole is positioned between the cambered surfaces of the two sets of baffles 307, namely the two sets of baffles 307 are far away from the support hole, so that the movement of the wiping cotton head 308 is not hindered.

As shown in fig. 13-16, the disinfecting mechanism 301 is located on a side of the cotton pulling member 302 facing away from the measuring mechanism 202, and the disinfecting mechanism 301 includes three fixing frames 311, a threaded rod 316 and two sets of motors: the output end of the motor III 312 is provided with a power connecting piece I314, the output end of the motor IV 313 is provided with a power connecting piece II 315, and the transmission ratios of the power connecting piece I314 and the power connecting piece II 315 are the same.

The belt drive is exemplified by power link one 314 and power link two 315: the first power connecting piece 314 comprises a first driving pulley coaxially arranged at the output end of the third motor 312, a first driven pulley rotatably arranged on the third fixing frame 311 and a first belt arranged between the first driving pulley and the first driven pulley, the first driven pulley can only rotate around the axial direction and cannot move, the second power connecting piece 315 comprises a second driving pulley coaxially arranged at the output end of the fourth motor 313, a second driven pulley rotatably arranged on the third fixing frame 311 and a second belt arranged between the second driving pulley and the second driven pulley, the rotating installation mode can be a bearing installation mode, the second driven pulley can only rotate around the axial direction and cannot move, the first driven pulley, the second driven pulley and the support hole are coaxially arranged.

The threaded rod 316 and the supporting hole are coaxially arranged and are internally hollow, in an initial state, one end of the threaded rod 316 is located on one side, away from the cotton pulling component 302, of the fixed frame third 311, the other end of the threaded rod 316 sequentially penetrates through the driven pulley I and the driven pulley II and then is located between the fixed frame third 311 and the upright column 304 and is provided with the atomizing nozzle 317 and the air bag 318, as shown in fig. 15 and 16, the atomizing nozzle 317 is coaxially arranged at the end of the threaded rod 316 and sprays disinfectant to the periphery along the radial direction, the air bag 318 is coaxially sleeved outside the threaded rod 316, the air bag 318 is in a circular ring shape, the inner wall of the air bag 318 is provided with the connector, and the free end of the connector extends into the threaded rod 316.

As shown in fig. 14, a guide member is disposed between the threaded rod 316 and the first driven pulley, specifically, the guide member includes a guide groove disposed on an outer circumferential surface of the threaded rod 316 and a protrusion disposed on an inner wall of the first driven pulley, the protrusion is slidably disposed in the guide groove and forms a sliding guide fit between the guide groove and the protrusion, the guiding direction of the sliding guide fit is parallel to the axial direction of the threaded rod 316, and the threaded rod 316 is also threadedly connected to the second driven pulley.

As shown in fig. 13 and 16, the inlet end of the atomizer 317 is connected to the third pipe 309, and the free end of the nozzle is connected to the fourth pipe 310.

The operation relationship among the third motor 312, the fourth motor 313 and the threaded rod 316 is specifically described as follows:

1. when the third motor 312 does not operate and the fourth motor 313 operates, at this time, under the limitation of the guide member, the threaded rod 316 can only move along the axial direction and cannot rotate around the axial direction, and the second driven pulley is in threaded connection with the threaded rod 316 and can only rotate around the axial direction and cannot move along the axial direction, so that when the fourth motor 313 operates to drive the second driven pulley to rotate, the threaded rod 316 only moves along the axial direction; 2. when the motor III 312 and the motor IV 313 operate simultaneously and the rotating speed and the rotating direction are the same, the motor IV 313 drives the driven pulley II to rotate, the motor III 312 operates to drive the driven pulley I to rotate, the driven pulley I drives the threaded rod 316 to rotate together through the guide piece (at the moment, the guide piece plays a key role in connection and transmission of power), and the transmission ratio of the power connecting piece I314 to the power connecting piece II 315 is consistent, so that the rotating speed and the rotating direction of the driven pulley II and the rotating speed and the rotating direction of the threaded rod 316 are the same, the driven pulley II and the threaded rod 316 are in a relative static state, the driven pulley II cannot pull the threaded rod 316 to move along the axial direction, and the threaded rod 316 rotates only around the axial direction; 3. based on 1 and 2, when the rotation speed of motor four 313 is greater than that of motor three 312, the two driven pulleys rotate relative to the threaded rod 316 and the rotation speed of the relative rotation is equal to the product of the rotation speed difference between motor three 312 and motor four 313 and the transmission ratio of power connection member two 315, and the relative rotation difference drives the threaded rod 316 to move axially, so that finally the threaded rod 316 rotates around the axial direction and moves axially, when the rotation speed of motor four 313 changes and is less than that of motor three 312, the threaded rod 316 still rotates around the axial direction and moves axially, but the moving direction of the threaded rod 316 is consistent with the moving direction before the rotation change of motor four 313, and the rotating direction of the threaded rod 316 is opposite to the rotating direction before the rotation change of motor four 313; in summary, through the cooperation of the motor three 312, the motor four 313, the power connection member one 314 and the power connection member two 315, the threaded rod 316 can be driven to move only in the axial direction, or the threaded rod 316 can be driven to rotate in the axial direction while moving in the axial direction, and the rotation direction of the threaded rod 316 can be changed during the movement process.

The disinfecting and wiping action of the disinfecting mechanism 301 is represented as follows:

firstly, the magnetic suspension unit 203 enables the sleeve 206 to be horizontally arranged, then, the threaded rod 316 is driven to move only along the axial direction through the matching of the motor three 312, the motor four 313, the power connecting piece one 314 and the power connecting piece two 315, the threaded rod 316 moves to drive the atomizing spray head 317 to move towards the sleeve 206, when the atomizing spray head 317 is in the sleeve 206, disinfectant flows to the atomizing spray head 317 through the pipeline three 309 and is sprayed to the inner wall of the sleeve 206 in an atomizing form through the atomizing spray head 317, after the spraying is finished, the threaded rod 316 is driven to move only along the axial direction in a reverse direction through the matching of the motor three 312, the motor four 313, the power connecting piece one 314 and the power connecting piece two 315, the movement is stopped when the air bag 318 is positioned in the supporting hole, and at the moment, the wiping cotton head 308 is positioned outside the air bag 318;

then, the air flows to the air bag 318 through the fourth pipeline 310, the air bag 318 expands to clamp the wiping cotton head 308, then, through the cooperation of the third motor 312, the fourth motor 313, the first power connector 314 and the second power connector 315, the threaded rod 316 is driven to move only in the axial direction, when the wiping cotton head 308 moves into the free end of the sleeve 206, the air flows to the air bag 318 through the fourth pipeline 310 again, the air bag 318 generates an expansion trend, and further, the extrusion force between the wiping cotton head 308 and the inner wall of the sleeve 206 is increased, so that the wiping cotton head 308 is more tightly attached to the inner wall of the sleeve 206, then, through the cooperation of the third motor 312, the fourth motor 313, the first power connector 314 and the second power connector 315, the threaded rod 316 is driven to rotate around the axial direction and move along the axial direction while wiping the inner wall of the sleeve 206, the wiping effect is better, after the wiping cotton head 308 finishes wiping the sleeve 206 for one time, the wiping effect is improved through the cooperation of the third motor 312, the second power connector 314 and the inner wall is cleaned by the atomizing and the inner wall of the sleeve 206, so that the wiping effect is improved after the disinfection is finished by the sleeve 206, the atomizing and the disinfection method, the inner wall cleaning method, the inner wall is finished by the disinfection method of spraying the inner wall of the sleeve 206;

in the wiping process of the wiping cotton head 308, the second motor 305 operates to drive the two groups of baffles 307 to approach each other until the area between the two groups of baffles 307 can avoid the air bag 318 with air being emptied to pass but block the wiping cotton head 308 from passing, and then, after the wiping cotton head 308 leaves the sleeve 206, the threaded rod 316 is driven to move backwards only along the axial direction through the cooperation of the third motor 312, the fourth motor 313, the first power connector 314 and the second power connector 315, meanwhile, the air in the air bag 318 is discharged through the fourth pipeline 310, the clamping on the wiping cotton head 308 is cancelled, when the wiping cotton head 307 passes by, the threaded rod 316, the air bag 318 and the atomizing nozzle 317 can smoothly pass, the wiping cotton head 308 falls off from the air bag 318 due to the blocking of the baffles 307, and a guide slide 303 can be arranged between the upright column 304 and the blood oxygen measuring device 200, and the bottom end of the guide slide 303 extends out of the shell 100 to receive the wiping cotton head 308 and guide the wiping cotton head to leave.

In the above process, limited by the third pipeline 309 and the fourth pipeline 310, in the above wiping action, the rotation direction of the threaded rod 316 can be firstly rotated forward by a preset angle and then rotated backward by a preset angle, so as to reciprocate, thereby preventing the third pipeline 309 and the fourth pipeline 310 from being folded and wound.

In addition, a rotary joint can be arranged at the free end of the threaded rod 316, a three-way pipe is arranged at the output end of the rotary joint, one pipe orifice of the three-way pipe is communicated with the output end of the rotary joint, the other two interfaces are respectively communicated with a pipeline III 309 and a pipeline IV 310, and electromagnetic valves are respectively arranged at the two communicated positions, so that the problem that the pipeline III 309 and the pipeline IV 310 are folded and wound is solved.

As shown in fig. 2, a supply unit is further provided in the housing 100 for supplying air to the upper and lower mounting units, which receive air and have their output ends close to the quill wire, or to the left and right mounting units, which receive air and supply air to the air bags or supply disinfectant to the atomizer head.

Specifically, as shown in fig. 4 and 8, the supply unit includes a connecting body 225 disposed on the second fixing frame 220, the connecting body 225 is annular, an inner area of the connecting body 225 is used for avoiding the movement of the disinfecting mechanism 301, and an end face of the connecting body 225 is provided with two sets of air grooves: gas groove 227 and gas groove 228, the terminal surface that connector 225 was provided with the gas groove still is provided with closing cap 226 for the notch in shutoff gas groove, the excircle face of connector 225 still is provided with two sets of pipelines: a first conduit 229 in communication with the first gas tank 227 and a second conduit 230 in communication with the second gas tank 228.

The cylinder body 208 in the gas tank and the installation unit 207 is connected and communicated through a branch pipe 231, the joint is close to the cylinder cover 209, and the branch pipe 231 is correspondingly provided with two types: and the branch pipeline I is used for communicating the air groove I227 with the cylinder bodies 208 in the left and right mounting units and is correspondingly provided with two groups, and the branch pipeline II is used for communicating the air groove II 228 with the cylinder bodies 208 in the upper and lower mounting units and is correspondingly provided with two groups.

As shown in fig. 17, the supply unit further includes an air pump 103, a disinfection tank 104 and a dispensing valve 105, wherein a liquid injection tube 108 extends from the upper end of the disinfection tank 104, the upper end of the liquid injection tube 108 extends out of the housing 100 and is fittingly provided with a tube cap 109, the tube cap 109 is opened, and a disinfection solution, which may be medical alcohol or the like, can be added into the disinfection tank 104.

The air outlet end of the air pump 103 is communicated with the distribution valve 105 through a pipeline five 106, the distribution valve 105 is communicated with the disinfection tank 104 through a pipeline six 107, and the communication point of the pipeline six 107 and the disinfection tank 104 is positioned at the upper end of the disinfection tank 104.

The end of line one 229 is in communication with the dispensing valve 105, the end of line two 230 is in communication with the dispensing valve 105, the end of line four 310 is in communication with the dispensing valve 105, and the end of line three 309 extends into the sterilization tank 104 near the bottom of the tank.

The distribution valve 105 can switch the pipeline five 106 between being communicated with the pipeline one 229, the pipeline two 230, the pipeline four 310 or the pipeline six 107, and the distribution valve 105 is realized by the prior art and is not described herein again.

The working process of the supply unit is represented as follows: the distribution valve 105 is started to enable the pipeline five 106 to be communicated with the pipeline one 229, the air pump 103 operates to drive air to sequentially pass through the air inlet end and the air outlet end of the air pump 103, the pipeline five 106, the distribution valve 105, the pipeline one 229, the air groove one 227 and the cylinder body 208 in the left and right installation units;

the distribution valve 105 is started to enable the pipeline five 106 to be communicated with the pipeline two 230, the air pump 103 operates to drive air to flow in the cylinder body 208 in the upper and lower mounting unit sequentially through the air inlet and outlet end of the air pump 103, the pipeline five 106, the distribution valve 105, the pipeline two 230, the air groove two 228 and the branch pipeline two flow;

the distribution valve 105 is started to enable the pipeline five 106 to be communicated with the pipeline six 107, the air pump 103 operates to drive air to flow into the disinfection tank 104 through the air inlet and outlet end of the air pump 103, the pipeline five 106, the distribution valve 105 and the pipeline six 107 in sequence, the air pressure in the disinfection tank 104 is increased, and disinfectant is pressed into the pipeline three 309;

the distribution valve 105 is started to enable the pipeline five 106 to be communicated with the pipeline four 310, and the air pump 103 operates to drive air to flow into the pipeline four 310 through the air inlet end and the air outlet end of the air pump 103, the pipeline five 106 and the distribution valve 105 in sequence.

The working principle of the invention is as follows:

first, blood oxygen measurement is performed by the blood oxygen measurement device 200: the method comprises the following steps: the fingers are inserted into the sleeve 206 and the palm is supported by the pallet 101, and the sleeve 206 can rotate along the axial direction of the rotation of the first movable frame 204 and the axial direction of the rotation of the second movable frame 205, so that the hand is in a relaxed state that the palm is supported by the pallet 101 and the fingers bend downwards, and the relaxed state is similar to the state that the hand is naturally placed on a table; step two: the image recognition sensors 217 in the left and right mounting units photograph and recognize the fingers and transmit the result to the control main board, the control main board sends a signal to the first motor 223, the first motor 223 drives the first screw rod 221 to rotate through the power transmission piece 224, the first screw rod 221 rotates to drive the first movable frame 204, the second movable frame 205 and the sleeve 206 to move until the finger nails are over against the image recognition sensors 217, namely over against the blood oxygen probe 216, in the process, the movement range of the sleeve 206 is small, the sleeve 206 supports the finger abdomen, and the whole relaxation state of the hand is not influenced when the fingers are slightly lifted; step three: the distribution valve 105 is started to enable the pipeline five 106 to be communicated with the pipeline one 229, the air pump 103 operates to drive air to sequentially pass through the air inlet end and the air outlet end of the air pump 103, the pipeline five 106, the distribution valve 105, the pipeline one 229, the air groove one 227 and the branch pipeline one flow into the cylinder 208 in the left and right mounting units: the piston 211 moves close to the sleeve 206, the piston 211 moves to drive the piston rod 212 to move together with the mounting seat 213 until the cambered surface of the mounting seat 213 is contacted with a finger, the finger is clamped through the cambered surfaces of the mounting seats 213 in the left and right mounting units, in the process, the distance between the cambered surface of the mounting seat 213 and the finger is sensed through the distance sensor 218, when the distance is zero, air is stopped being injected into the cylinder body 208 to avoid clamping excessive damage to the finger, and at the moment, the communication part between the distribution valve 105 and the pipeline I229 is closed, and the left and right mounting units keep the current state unchanged; step four: the distribution valve 105 is started to enable the pipeline five 106 to be communicated with the pipeline two 230, the air pump 103 operates to drive air to flow in the cylinder body 208 in the upper and lower installation units sequentially through the air inlet and outlet end of the air pump 103, the pipeline five 106, the distribution valve 105, the pipeline two 230, the air groove two 228 and the branch pipeline two flow: the piston 211 is moved to be close to the sleeve 206, the piston 211 moves to drive the piston rod 212, the mounting seat 213 and the blood oxygen probe 216 to move together, when the distance between the blood oxygen probe 216 and the finger is a preset value, the air is stopped to be injected into the cylinder body 208, at the moment, the distribution valve 105 closes the communication part between the distribution valve and the second pipeline 230, the upper mounting unit and the lower mounting unit keep the current state unchanged, and then the blood oxygen measurement is carried out on the finger nail through the blood oxygen probe 216; step five: after the measurement is finished, the communication part of the distribution valve 105 and the second pipeline 230 and the communication part of the distribution valve 105 and the first pipeline 229 are opened, so that air in the four groups of installation units is exhausted through the distribution valve 105, and the four groups of installation units are reset;

next, the disinfection device 300 performs a disinfection wipe of the cannula 206: the method comprises the following steps: the magnetic suspension unit 203 is started to enable the sleeve 206 to be horizontally arranged; step two: through the matching of the motor III 312, the motor IV 313, the power connecting piece I314 and the power connecting piece II 315, the threaded rod 316 is driven to move only along the axial direction, the threaded rod 316 moves to drive the atomizing spray head 317 to move towards the sleeve 206, when the atomizing spray head 317 is in the sleeve 206, the distribution valve 105 is started to enable the pipeline V106 to be communicated with the pipeline VI 107, the air pump 103 operates to drive air to flow into the disinfection tank 104 through the air inlet and outlet end of the air pump 103, the pipeline V106, the distribution valve 105 and the pipeline VI 107 in sequence, the air pressure in the disinfection tank 104 is increased, disinfectant is pressed into the pipeline III 309 and sprayed to the inner wall of the sleeve 206 in an atomizing mode through the atomizing spray head 317, after the spraying is finished, the threaded rod 316 is driven to move only along the axial direction through the matching of the motor III 312, the motor IV 313, the power connecting piece I314 and the power connecting piece II 315, the movement of the threaded rod 316 is driven to stop when the air bag 318 is positioned in the supporting hole, and at the moment, the wiping cotton head 308 is positioned outside of the air bag 318; step three: the distribution valve 105 is started to enable the pipeline five 106 to be communicated with the pipeline four 310, the air pump 103 operates to drive air to flow to the air bag 318 through the air inlet and outlet end of the air pump 103, the pipeline five 106, the distribution valve 105 and the pipeline four 310 in sequence, and the air bag 318 expands to clamp the wiping cotton head 308; step four: when the wiping cotton head 308 moves into the free end of the sleeve 206, air flows to the air bag 318 again, the air bag 318 expands, so that the extrusion force between the wiping cotton head 308 and the inner wall of the sleeve 206 is increased, the wiping cotton head 308 is made to be more closely attached to the inner wall of the sleeve 206, then the threaded rod 316 is driven to rotate around the axial direction and move along the axial direction while being matched with the motor three 312, the motor four 313, the power connecting piece one 314 and the power connecting piece two 315, so that the inner wall of the sleeve 206 is wiped, after the wiping cotton head 308 finishes wiping the sleeve 206 for one time, the sleeve 206 is wiped for the second time by matching the motor three 312, the motor four 313, the power connecting piece one 314 and the power connecting piece two 315, so that the threaded rod 316 rotates around the axial direction while being moved back, so that the sleeve 206 is wiped for the second time, and meanwhile, the motor two baffles 307 are driven to move close to each other until the area between the two groups of baffles 307 can avoid the air bag 318 after the air baffles 307 are emptied and block the wiping cotton head 308; step five: after the wiping cotton head 308 leaves the sleeve 206, the threaded rod 316 is driven to move backwards only in the axial direction through the cooperation of the motor three 312, the motor four 313, the power connector one 314 and the power connector two 315 so as to reset, meanwhile, air in the air bag 318 is discharged through the pipeline four 310, clamping on the wiping cotton head 308 is cancelled, when the wiping cotton head passes through the baffle 307, the threaded rod 316, the air bag 318 and the atomizing nozzle 317 can smoothly pass through, and the wiping cotton head 308 falls off from the air bag 318 due to the obstruction of the baffle 307 and is guided to leave by the guide slide 303.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An oximeter, which comprises a shell, and is characterized in that: a blood oxygen measuring device and a sterilizing device are arranged in the shell;

the blood oxygen measuring device comprises an adjusting mechanism and a measuring mechanism, wherein one end of the measuring mechanism, which is used for inserting fingers, is hinged in a shell, an avoidance port for avoiding the fingers from being inserted into the measuring mechanism is formed in the outer surface of the shell, a supporting platform is further arranged on one side of the shell, the supporting platform and the measuring mechanism which is hinged are matched when one finger of a person is inserted into the measuring mechanism, so that the hand of the person is in a relaxed state that the hand is supported by the supporting platform and the finger bends downwards, and the adjusting mechanism is used for drawing a blood oxygen probe in the measuring mechanism to be over against a nail of the finger;

the disinfection device is used for disinfecting and wiping the measuring mechanism after the measuring mechanism completes one-time measurement, the disinfection action is formed by spraying atomized disinfectant into the measuring mechanism and wiping the inside of the measuring mechanism through a wiping cotton head, the inside of the measuring mechanism is cylindrical, and the wiping cotton head is annular;

the adjusting mechanism comprises a first fixing frame and a second fixing frame, the first fixing frame is close to the avoidance opening, a first screw rod and a guide rod which are axially parallel to the length direction of the shell are arranged between the first fixing frame and the second fixing frame, and the adjusting mechanism further comprises a first motor and a power transmission piece arranged between the first motor and the first screw rod;

the measuring mechanism comprises a sleeve, the inner cavity of the sleeve is cylindrical, a second movable frame is rotatably mounted outside one end of the sleeve, a first movable frame is rotatably mounted outside the second movable frame, the rotating axial direction of the first movable frame is vertical, the rotating axial direction of the second movable frame is parallel to the width direction of the shell, and the first movable frame is in threaded connection with the first screw rod and is in sliding connection with the guide rod;

the sheathed tube outside is provided with four groups of installation units along the circumferencial direction array, and two sets of installation units that are located both sides about the sleeve pipe are: go up installation unit and installation unit down, two sets of installation units are in addition: the blood oxygen probe is arranged in the probe groove, the opposite surfaces of the left mounting unit and the right mounting unit are provided with mounting grooves, and the image recognition sensor is arranged in the mounting grooves;

a magnetic suspension unit is also arranged in the shell and used for horizontally arranging the sleeve;

the disinfection device is arranged on one side of the measuring mechanism, which is far away from the avoidance opening, and comprises a disinfection mechanism and a cotton pulling component, the disinfection mechanism is used for atomizing and spraying disinfectant and disinfecting and wiping the inner wall of the sleeve in sequence, and the cotton pulling component is used for providing a wiping cotton head for the disinfecting and wiping action of the disinfection mechanism and assisting the wiping cotton head to leave from the disinfection mechanism after disinfection is finished;

the cotton pulling component comprises upright columns which are vertically arranged, the interiors of the upright columns are hollow and are provided with supporting plates, supporting holes are formed in two side faces of each upright column along the length direction of the shell, the upper end faces of the supporting plates are in an upward bent arc plate shape, the supporting plates and the two groups of supporting holes are coaxially arranged, the upper opening ends of the upright columns extend out of the shell, and sleeves which are horizontally arranged under the assistance of the magnetic suspension units are coaxially arranged with the supporting holes;

the whole wiping cotton head is in a ring shape, the wiping cotton head consists of an inner core and an outer cotton ring, the inner core is made of elastic materials, the outer cotton ring is made of medical grade cotton, the outer cotton ring is coaxially arranged on the inner core, and the diameter of the wiping cotton head is smaller than the aperture of the supporting hole;

the cotton pulling component also comprises a ferrule which is sleeved outside the upright post in a sliding manner, one side of the ferrule facing the measuring mechanism is provided with a baffle plate, the ferrule is provided with two groups along the extending direction of the upright post, the baffle plate is provided with two groups corresponding to the ferrule, the opposite surfaces of the two groups of baffle plates are in the shape of an arc surface, the diameter of the arc surface of the baffle plate is smaller than that of the wiping cotton head, one side of the ferrule extends with a lug, a second lead screw which is vertically arranged is installed in the shell, the input end of the second lead screw is in power connection with a second motor which is arranged in the shell, the second lead screw is axially divided into two sections of thread sections with opposite spiral directions, and the thread sections are in thread connection with the lug;

the disinfection mechanism is positioned on one side, away from the measuring mechanism, of the cotton pulling component and comprises a third fixing frame, a threaded rod, a third motor and a fourth motor, a first power connecting piece is arranged at the output end of the third motor, a second power connecting piece is arranged at the output end of the fourth motor, and the transmission ratio of the first power connecting piece to the second power connecting piece is the same;

the first power connecting piece comprises a first driving belt wheel, a first driven belt wheel and a first belt, wherein the first driving belt wheel is coaxially arranged at the output end of the third motor, the first driven belt wheel is rotatably arranged on the third fixing frame, the first belt is arranged between the first driving belt wheel and the first driven belt wheel, the second power connecting piece comprises a second driving belt wheel, a second driven belt wheel and a second belt, the second driving belt wheel is coaxially arranged at the output end of the fourth motor, the second driven belt wheel is rotatably arranged on the third fixing frame, the second belt is arranged between the second driving belt wheel and the second driven belt wheel, and the first driven belt wheel, the second driven belt wheel and the support hole are coaxially arranged;

the threaded rod and the supporting hole are coaxially arranged and are hollow inside, in an initial state, one end of the threaded rod is located on one side, away from the cotton pulling component, of the third fixing frame, the other end of the threaded rod sequentially penetrates through the first driven belt wheel and the second driven belt wheel, then the other end of the threaded rod is located between the third fixing frame and the stand column, the atomizing nozzle and the air bag are arranged, the atomizing nozzle sprays disinfectant to the periphery along the radial direction, the air bag is in a circular ring shape, a connecting nozzle is arranged on the inner wall of the air bag, and the free end of the connecting nozzle extends into the threaded rod;

the outer circular surface of the threaded rod is provided with a guide groove, the inner wall of the driven belt wheel I is provided with a bulge, the bulge is positioned in the guide groove in a sliding mode and forms sliding guide fit with the guide direction parallel to the axial direction of the threaded rod between the bulge and the guide groove, and the threaded rod is in threaded connection with the driven belt wheel II;

the casing is internally provided with a supply unit, the supply unit provides air to the upper mounting unit and the lower mounting unit or provides air to the left mounting unit and the right mounting unit or provides air to the air bag or provides disinfectant to the atomizing nozzle, and the output ends of the upper mounting unit, the lower mounting unit, the left mounting unit and the right mounting unit are close to the sleeve axis core wire after receiving the air.

2. A method of blood oxygen monitoring of an oximeter as defined in claim 1, wherein: the blood oxygen measuring process comprises the following steps:

the method comprises the following steps: the fingers are inserted into the sleeve and the palm is supported by the supporting platform;

step two: the image recognition sensors in the left and right mounting units photograph and recognize the fingers and transmit the result to a control mainboard arranged in the shell, the control mainboard sends a signal to a motor I, and the motor I operates to drive the sleeve to move so that the finger nails are opposite to the blood oxygen probe;

step three: the supply unit supplies air to the left and right mounting units to enable the left and right mounting units to move the clamping fingers;

step four: the supply unit supplies air to the upper mounting unit and the lower mounting unit to enable the upper mounting unit and the lower mounting unit to move until the distance between the blood oxygen probe and the finger is a preset value, and the blood oxygen measurement is carried out on the finger nail through the blood oxygen probe;

step five: after the measurement is finished, air in the four groups of installation units is exhausted through the supply unit, and the blood oxygen measuring device is reset.

3. The blood oxygen monitoring method of oximeter as defined in claim 2, further comprising: the steps of the disinfection and wiping process of the cannula are as follows:

the method comprises the following steps: the magnetic suspension unit is started to enable the sleeves to be horizontally arranged;

step two: the threaded rod is driven to move axially through the matching of the motor III, the motor IV, the power connecting piece I and the power connecting piece II, the threaded rod moves to drive the atomizing nozzle to move towards the sleeve, the supply unit sprays disinfectant to the inner wall of the sleeve in an atomizing mode through the atomizing nozzle, after the spraying is finished, the threaded rod is driven to move reversely along the axial direction through the matching of the motor III, the motor IV, the power connecting piece I and the power connecting piece II, and the air bag stops moving when located in the supporting hole;

step three: the supply unit injects air into the air bag, and the air bag expands to clamp and wipe the cotton head;

step four: the threaded rod is driven to move axially through the cooperation of the motor III, the motor IV, the power connecting piece I and the power connecting piece II, when the wiping cotton head moves into the free end of the sleeve, the supply unit injects air into the air bag again to enable the air bag to generate an expansion trend, so that the pressure of the wiping cotton head on the inner wall of the sleeve is increased, then through the cooperation of the motor III, the motor IV, the power connecting piece I and the power connecting piece II, the threaded rod is driven to rotate around the shaft and move axially at the same time to wipe the inner wall of the sleeve, and after the wiping cotton head finishes wiping the sleeve for one time, through the cooperation of the motor III, the motor IV, the power connecting piece I and the power connecting piece II, the threaded rod is driven to rotate around the shaft and move backwards along the axial direction at the same time to wipe the sleeve for the second time;

meanwhile, the second motor drives the two groups of baffles to approach each other until the diameter of the area between the two groups of baffles is larger than the diameter of the air bag after air is emptied and smaller than the outer diameter of the wiping cotton head;

step five: after the cleaning cotton head leaves the sleeve, the threaded rod is driven to retreat along the axial reverse movement to reset through the cooperation of the motor III, the motor IV, the power connecting piece I and the power connecting piece II, meanwhile, air in the air bag is discharged through the supply unit, the clamping of the cleaning cotton head is cancelled, when the baffle is arranged on the way, the threaded rod, the air bag and the atomizing nozzle can smoothly pass through, and the cleaning cotton head drops from the air bag due to the obstruction of the baffle.