Pulse oximetry device and method

Abstract

The present application relates to the technical field of medical equipment, and proposes a pulse blood oxygen detection device and method thereof, which comprises a lower clamp cover and an upper clamp cover hinged to the lower clamp cover, the opposite sides of the lower clamp cover and the upper clamp cover are both provided with clamping grooves for clamping fingers, a detection module is arranged in the clamping groove of the lower clamp cover, a motor one for driving the opening and closing of the lower clamp cover is fixed to one side of the tail of the lower clamp cover, and two pressing rods are fixed in the clamping groove of the upper clamp cover; in the present application, the upper clamp cover is closed on the lower clamp cover to clamp the fingers, so that the pulse blood oxygen can be detected by the detection module; in this state, the two clamping mechanisms are in a relaxed state under the extrusion of the two pressing rods on the bottom surface of the upper clamp cover, the ventilation mechanism can work to ventilate the fingers, thereby increasing the circulation of air to prevent the appearance of sweat stains around the fingers to affect the detection results; compared with the prior art, the ventilation method is adopted in the detection process to improve the detection efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment, in particular, to a pulse blood oxygen detection device and method thereof. BACKGROUND

[0002] The photosensitive sensor (receiving tube) in the pulse blood oxygen meter detects the transmitted light signal, and calculates the blood oxygen saturation according to the different absorption rates of red light and infrared light to oxygenated hemoglobin and reduced hemoglobin. When the pulse is large, the light absorption change caused by the oxygenation state change of hemoglobin also occurs. By measuring this change, the pulse blood oxygen meter can accurately calculate the oxygen saturation in the blood.

[0003] The pulse blood oxygen meter on the market is mostly a finger clamp type detector. For example, the portable finger clamp type non-invasive blood oxygen pulse detector disclosed in the announcement No. CN201929960U is composed of a shell, a liquid crystal screen, a keyboard, an electronic circuit board, a battery box, a power plug, a USB interface, an LD1 optical fiber, a finger clamp probe, an LD2 optical fiber, and a detection optical fiber. The front of the shell is provided with a liquid crystal screen and a keyboard, and the back of the shell is provided with a battery box, a power plug, a USB interface, an LD1 optical fiber, an LD2 optical fiber, a detection optical fiber, and a finger clamp probe. The finger clamp probe is composed of a photoelectric detector, an LD1, and an LD2. The shell is provided with an electronic circuit board, which is a photoelectric measuring device that does not need to penetrate the blood vessel to measure the arterial blood oxygen saturation in the human body, avoids the pain of the patient penetrating the blood vessel, has a phase-locked amplification circuit with filtering and amplification functions, strong anti-interference ability, simple structure, high reliability, low power consumption, and can be connected with the upper computer to realize signal storage and playback.

[0004] In the actual use process of the existing pulse blood oxygen meter, the accuracy of pulse blood oxygen detection may be affected by various factors. In order to avoid errors during pulse blood oxygen detection, the following measures need to be taken: the finger part needs to be cleaned before use, and water stains are easy to remain during cleaning. Or due to nervous sweating of the patient, the finger part needs to be wiped from time to time. In addition, in order to prevent long-term compression, the medical staff or the patient needs to loosen the finger or select other fingers for detection from time to time, which increases the work burden of the medical staff. SUMMARY

[0005] The present application provides a pulse blood oxygen detection device and method, which solves the problem of wiping the finger part and the need for manual movement or replacement in the prior art.

[0006] The technical scheme of the present application is as follows: a pulse blood oxygen detection device, comprising a lower clamp cover and an upper clamp cover hinged to the lower clamp cover, opposite sides of the lower clamp cover and the upper clamp cover are both provided with a clamping groove for clamping a finger, a detection module is arranged in the clamping groove of the lower clamp cover, a motor one for driving the opening and closing of the lower clamp cover is fixed to one side of the tail of the lower clamp cover, two pressing rods are fixed in the clamping groove of the upper clamp cover, clamping mechanisms corresponding to the two pressing rods are arranged in the clamping groove of the lower clamp cover, when the upper clamp cover is closed on the lower clamp cover, the two clamping mechanisms are respectively squeezed by the two pressing rods and spread to both sides, when the upper clamp cover is opened from the lower clamp cover, the two clamping mechanisms can clamp the finger from both sides, a ventilation mechanism for ventilating the surrounding of the finger and a transmission mechanism driven by the ventilation mechanism are arranged at the middle position of the tail of the lower clamp cover, an auxiliary mechanism for supporting the fingertip is arranged between the two clamping mechanisms, a lifting mechanism for lifting and descending in cooperation with the transmission mechanism when the two clamping mechanisms clamp the finger is arranged between the ventilation mechanism and the auxiliary mechanism, the auxiliary mechanism cooperates with the lifting mechanism to drive the fingertip to move up and down.

[0007] Preferably, the clamping mechanism comprises a swing rod, the swing rod comprises a long rod section and a short rod section integrally connected with the long rod section, the proximal ends of the long rod section and the short rod section of the swing rod are hinged to the lower clamp cover through a rotating shaft, and a torsional spring is clamped at the hinge, the end of the short rod section of the swing rod is fixed with a clamping column, the proximal side of the clamping column of the two clamping mechanisms is provided with an arc-shaped concave surface, and the end of the long rod section of the swing rod is fixed with a U-shaped fork.

[0008] Preferably, the tail of the lower clamp cover and the upper clamp cover is fixed with a hinge seat on both sides, the two hinge seats of the lower clamp cover are rotationally connected with a pin shaft, the hinge seat of the upper clamp cover is fixedly connected with the pin shaft, the motor one is fixed in one side of the hinge seat of the lower clamp cover, and the output end of the motor one is fixedly connected with the pin shaft.

[0009] Preferably, the two pressing rods are between the short rod sections of the two swing rods, the two swing rods tend to rotate to the falling points of the two pressing rods under the elastic force of the torsional spring, and the diameters of the two pressing rods gradually decrease from top to bottom.

[0010] Preferably, the ventilation mechanism comprises a shell, a hole is provided in the tail of the lower clamp cover, the shell is fixed outside the hole of the lower clamp cover, a motor two is fixed in the hole of the shell, a fan blade is fixed on the output shaft of the motor two, and a worm is fixed on the end of the output shaft of the motor two.

[0011] Preferably, the transmission mechanism comprises a transmission rod, two supports are rotatably connected to the transmission rod, the two supports are fixed to the lower clamping cover, a worm gear fixed to the transmission rod is arranged between the two supports, the worm gear is meshed with a worm, a sleeve is arranged on the outer side of the two ends of the transmission rod, a spline rod fixed to the end of the transmission rod is slidably arranged in the sleeve, a convex ring fixed to the transmission rod is arranged between the sleeve and the support, the sleeve is elastically connected to the convex ring through a spring, a first tooth disc is fixed to the end of the sleeve away from the spring, a through hole is formed in the lower clamping cover on the opposite side of the first tooth disc, and a second tooth disc is rotatably connected in the through hole, annular teeth capable of being engaged with each other when the first tooth disc and the second tooth disc are attached are arranged on the opposite sides of the first tooth disc and the second tooth disc, and a connecting rod is hingedly connected to the outer side of the second tooth disc.

[0012] Preferably, the sleeve passes through the U-shaped fork transversely, and the first tooth disc is abutted against the U-shaped fork under the elastic force of the spring.

[0013] Preferably, the lifting mechanism comprises a lifting plate and sliding plates fixed to the two ends of the lifting plate, the two sliding plates are vertically and slidably connected to the lower clamping cover, one end of each of the two sliding plates extends out of the lower clamping cover and is hingedly connected to the connecting rod, and one side of each of the sliding plates facing the auxiliary mechanism is fixed with a pair of strip-shaped teeth.

[0014] Preferably, the auxiliary mechanism comprises two supports, the two supports are fixed to the lower clamping cover, V-shaped frames are hingedly connected to the two supports, the V-shaped frames are fixed with fan-shaped teeth meshed with the strip-shaped teeth at the hinged portions with the supports, the two ends of each of the V-shaped frames are fixed with a compression wheel, a guard plate fixed to the two V-shaped frames is arranged between the two compression wheels, and air holes are formed in the lifting plate and the guard plate.

[0015] Based on the above device, the use method of the device is also disclosed, the upper clamping cover is opened to a first working angle by the motor one, the fingers are inserted into the clamping groove between the lower clamping cover and the upper clamping cover, the fingers are placed between the two clamping mechanisms, the fingertips are placed on the auxiliary mechanism, the upper clamping cover is closed on the lower clamping cover by the motor one to clamp the fingers, so that the pulse blood oxygen can be detected by the detection module, in this state, the two clamping mechanisms are in a relaxed state under the extrusion of the two compression rods on the bottom surface of the upper clamping cover, and the surrounding of the fingers can be ventilated by the ventilation mechanism.

[0016] After a certain time, the motor opens the upper clamp cover to a second working angle greater than the first working angle, releases the part of the finger that was clamped, and the two clamping mechanisms are separated from the two pressure rods on the bottom surface of the upper clamp cover, and the two clamping mechanisms clamp the side of the finger from both sides, so that the finger is kept on the lower clamp cover, and the two clamping mechanisms clamp the finger while driving the lifting mechanism to move up and down, and then the auxiliary mechanism drives the finger to move up and down through the cooperation of the lifting mechanism.

[0017] The beneficial effects of the present application are:

[0018] In the present application, the upper clamp cover is closed on the lower clamp cover to clamp the finger, so that the pulse blood oxygen can be detected by the detection module, and in this state, the two clamping mechanisms are in a relaxed state under the extrusion of the two pressure rods on the bottom surface of the upper clamp cover, and the ventilation mechanism can be used to ventilate the surrounding of the finger, thereby increasing the circulation of air to prevent the surrounding of the finger from being stained with sweat and affecting the detection result. Compared with the prior art, the ventilation method is used to improve the detection efficiency during the detection process.

[0019] In the present application, after a certain time, the motor opens the upper clamp cover to release the part of the finger that was clamped, and the two clamping mechanisms can clamp the finger from both sides to prevent the finger from being separated from the lower clamp cover, and facilitate subsequent clamping of the finger by the motor. Compared with the prior art, the present application does not need manual replacement of the finger for clamping, reduces the operation difficulty, and reduces the work burden of medical staff.

[0020] In the present application, when the two pressure rods on the bottom surface of the upper clamp cover are separated from the two clamping mechanisms, the two clamping mechanisms clamp the side of the finger from both sides, so that the finger is kept on the lower clamp cover, and the two clamping mechanisms clamp the finger while driving the lifting mechanism to move up and down, and then the auxiliary mechanism drives the finger to move up and down through the cooperation of the lifting mechanism. Compared with the prior art, the present application can replace manual movement of the finger of the patient to promote blood circulation and avoid the situation that blood circulation is not smooth due to long-term compression. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0022] Figure 1 A pulse blood oxygen detection device and method structure schematic diagram are provided for the present application.

[0023] Figure 2 A lower clamp cover structure schematic diagram is provided for the present application.

[0024] Figure 3The upper clamping cover and the structure of each mechanism in the upper clamping cover are shown in the schematic view.

[0025] Figure 4 The structure of each mechanism in the upper clamping cover is shown in the schematic view.

[0026] Figure 5 The structure of the ventilation mechanism is shown in the schematic view.

[0027] Figure 6 The structure of the clamping mechanism is shown in the schematic view.

[0028] Figure 7 The structure of the transmission mechanism is shown in the schematic view.

[0029] Figure 8 The structure of the auxiliary mechanism is shown in the schematic view.

[0030] Figure 9 The structure of the lifting mechanism is shown in the schematic view.

[0031] In the figure: 1, lower clamping cover; 11, hinge base; 12, pin shaft; 13, detection module; 2, upper clamping cover; 3, clamping groove; 4, pressing rod; 5, clamping mechanism; 51, swing lever; 52, clamping column; 53, rotating shaft; 54, torsional spring; 55, U-shaped fork; 6, ventilation mechanism; 61, outer shell; 62, motor two; 63, fan blade; 64, worm; 7, transmission mechanism; 71, transmission rod; 710, support; 72, worm gear; 73, sliding sleeve; 74, first toothed disc; 75, convex ring; 76, spring; 77, spline rod; 78, second toothed disc; 79, connecting rod; 8, auxiliary mechanism; 81, support; 82, V-shaped frame; 83, fan-shaped tooth; 84, pressing wheel; 85, guard plate; 9, lifting mechanism; 91, sliding plate; 92, lifting plate; 93, strip-shaped tooth; 94, air hole; 10, motor one. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0033] Please refer to Figure 1 and Figure 2The application provides a technical scheme: a pulse blood oxygen detection device, which comprises a lower clamping cover 1 and an upper clamping cover 2 hinged to the lower clamping cover 1, the opposite sides of the lower clamping cover 1 and the upper clamping cover 2 are both provided with clamping grooves 3 for clamping fingers, the clamping groove 3 of the lower clamping cover 1 is provided with a detection module 13, the tail side of the lower clamping cover 1 is fixed with a motor 10 for driving the lower clamping cover 1 to open and close, the tail sides of the lower clamping cover 1 and the upper clamping cover 2 are both fixed with hinge seats 11, the two hinge seats 11 of the lower clamping cover 1 are rotationally connected with a pin shaft 12, the hinge seat 11 of the upper clamping cover 2 is fixedly connected with the pin shaft 12, the motor 10 is fixed in one side hinge seat 11 of the lower clamping cover 1, and the output end of the motor 10 is fixedly connected with the pin shaft 12.

[0034] Please refer to Figure 2 、 Figure 3 and Figure 4 The clamping groove 3 of the upper clamping cover 2 is fixedly provided with two pressing rods 4, the clamping groove 3 of the lower clamping cover 1 is provided with clamping mechanisms 5 corresponding to the two pressing rods 4, when the upper clamping cover 2 is closed on the lower clamping cover 1, the two clamping mechanisms 5 are respectively extruded by the two pressing rods 4 and are opened to two sides, when the upper clamping cover 2 is opened from the lower clamping cover 1, the two clamping mechanisms 5 can clamp fingers from two sides, the tail middle position of the lower clamping cover 1 is provided with a ventilation mechanism 6 for ventilating around the fingers and a transmission mechanism 7 for driving the ventilation mechanism 6 to operate, the auxiliary mechanism 8 for supporting the fingertips is arranged between the two clamping mechanisms 5, the ventilation mechanism 6 and the auxiliary mechanism 8 are provided with a lifting mechanism 9 for lifting and descending in cooperation with the transmission mechanism 7 when the two clamping mechanisms 5 clamp the fingers, and the auxiliary mechanism 8 drives the fingertips to move up and down in cooperation with the lifting mechanism 9.

[0035] Please refer to Figure 4 and Figure 6, the clamping mechanism 5 comprises a swing lever 51, the swing lever 51 comprises two parts of a long lever section and a short lever section integrally connected with the long lever section, the long lever section of the swing lever 51 is hinged to the lower clamping cover 1 through a rotating shaft 53 at the proximal end of the long lever section and the hinged place is clamped with a torsion spring 54, the end of the short lever section of the swing lever 51 is fixed with a clamping column 52, the clamping column 52 of the two clamping mechanisms 5 is provided with an arc-shaped concave surface on the proximal side, the end of the long lever section of the swing lever 51 is fixed with a U-shaped fork 55, the two pressing rods 4 are between the short lever sections of the two swing levers 51, the two swing levers 51 tend to rotate to the landing points of the two pressing rods 4 under the elastic force of the torsion spring 54, the diameters of the two pressing rods 4 gradually decrease from top to bottom, when the upper clamping cover 2 is combined with the lower clamping cover 1, the two pressing rods 4 on the bottom surface of the upper clamping cover 2 can extrude the short lever sections of the two swing levers 51, so that the short lever sections of the two swing levers 51 are opened outward, and then a certain gap is kept with the fingers, and when the upper clamping cover 2 is opened from the lower clamping cover 1, the two pressing rods 4 gradually separate from the short lever sections of the two swing levers 51, the two swing levers 51 tend to rotate to the landing points of the two pressing rods 4 under the elastic force of the torsion spring 54, and then the fingers can be clamped from both sides to prevent the fingers from separating from the lower clamping cover 1.

[0036] Please refer to Figure 4 and Figure 5 , the ventilation mechanism 6 comprises a shell 61, the tail of the lower clamping cover 1 is provided with a hole, the shell 61 is fixed outside the hole of the lower clamping cover 1, a motor two 62 is fixed in the shell 61 and located in the hole, a fan blade 63 is fixed on the output shaft of the motor two 62, a worm 64 is fixed on the end of the output shaft of the motor two 62, the motor two 62 can drive the fan blade 63 to rotate when working, and then the air circulation is increased to prevent the appearance of sweat stains around the fingers from affecting the detection results.

[0037] Please refer to Figure 4 and Figure 7, the transmission mechanism 7 comprises a transmission rod 71, two supports 710 are externally rotatably connected to the transmission rod 71, the two supports 710 are fixed to the lower clamping cover 1, a worm wheel 72 fixed to the transmission rod 71 is arranged between the two supports 710, the worm wheel 72 is engaged with the worm 64, a sliding sleeve 73 is sleeved on the outer side of the two ends of the transmission rod 71, a spline rod 77 fixed to the end of the transmission rod 71 is slidably arranged in the sliding sleeve 73, a convex ring 75 fixed to the transmission rod 71 is arranged between the sliding sleeve 73 and the support 710, the sliding sleeve 73 is elastically connected with the convex ring 75 through a spring 76, a first tooth disc 74 is fixed to the end of the sliding sleeve 73 away from the spring 76, a through hole is formed in the lower clamping cover 1 on the opposite side of the first tooth disc 74, and a second tooth disc 78 is rotatably connected in the through hole, the opposite sides of the first tooth disc 74 and the second tooth disc 78 are provided with annular teeth capable of being engaged with each other when the two are attached, a connecting rod 79 is hingedly connected to the outer side of the second tooth disc 78, the center of the hinging point of the connecting rod 79 and the second tooth disc 78 is eccentrically arranged with the center of the second tooth disc 78, the sliding sleeve 73 passes through the U-shaped fork 55 in the transverse direction, the first tooth disc 74 is abutted against the U-shaped fork 55 under the elastic force of the spring 76, when the motor two 62 works, the transmission rod 71 can be synchronously driven to rotate through the meshing action of the worm wheel 72 and the worm 64, when the upper clamping cover 2 is combined with the lower clamping cover 1, the short rod sections of the two swing rods 51 are spread out to the outer side, the U-shaped forks 55 of the two swing rods 51 tend to move towards the inner side, so that the first tooth disc 74 and the second tooth disc 78 keep a certain distance, and when the upper clamping cover 2 is opened from the lower clamping cover 1, the two swing rods 51 tend to rotate towards the falling points of the two pressing rods 4 under the elastic force of the torsional spring 54, and then the first tooth disc 74 is driven to move outward to overcome the elastic force of the spring 76 until the first tooth disc 74 is attached to the second tooth disc 78, the first tooth disc 74 and the second tooth disc 78 are engaged with each other through the annular teeth on the first tooth disc 74 and the second tooth disc 78, so that the second tooth disc 78 is synchronously rotated with the first tooth disc 74.

[0038] Please refer to Figure 4 and Figure 9 , the lifting mechanism 9 comprises a lifting plate 92 and sliding plates 91 fixed to the two ends of the lifting plate 92, the two sliding plates 91 are vertically slidably connected with the lower clamping cover 1, one end of each of the two sliding plates 91 extends out of the lower clamping cover 1 and is hingedly connected with the connecting rod 79, one side of the sliding plate 91 facing the auxiliary mechanism 8 is fixed with a pair of strip-shaped teeth 93, the hinging point position of the connecting rod 79 and the sliding plate 91 is located directly above the center of the second tooth disc 78, the connecting rod 79 and the second tooth disc 78 constitute a crank linkage system, so as to drive the sliding plate 91 to make up-down reciprocating lifting movement.

[0039] Please refer to Figure 4 and Figure 8The auxiliary mechanism 8 comprises two supports 81 fixed to the lower clamping cover 1, and a V-shaped frame 82 hinged to each of the supports 81, wherein the V-shaped frame 82 is fixed at the hinge position of the support 81 to a sector gear 83 engaged with the strip gear 93, and the two ends of the V-shaped frame 82 are fixed to a pressing wheel 84, and a guard plate 85 fixed to the two V-shaped frames 82 is arranged between the two pressing wheels 84, the guard plate 85 prevents fingers from contacting the transmission structure, and a ventilation hole 94 is formed in the lifting plate 92 and the guard plate 85, when the slide plate 91 moves up and down, the strip gear 93 and the sector gear 83 are engaged, the V-shaped frame 82 is driven to reciprocate, when the V-shaped frame 82 swings upward, the lower pressing wheel 84 supports the fingertips to bend upward, when the V-shaped frame 82 swings downward, the upper pressing wheel 84 presses the fingertips to bend downward, and the continuous swinging of the V-shaped frame 82 can assist the rapid movement of the fingers, which is beneficial to the circulation of blood.

[0040] Based on the above embodiment, the application further provides a use method of the detection device, the upper clamping cover 2 is opened to a first working angle by the motor 10, the opening degree of the first working angle is between 30-50 degrees, the fingers can be placed between the two clamping mechanisms 5, the fingers are stretched into the clamping groove 3 between the lower clamping cover 1 and the upper clamping cover 2, and the fingers are placed between the two clamping mechanisms 5, the fingertips are placed on the auxiliary mechanism 8, and then the upper clamping cover 2 is closed on the lower clamping cover 1 by the motor 10 to clamp the fingers, so that the pulse blood oxygen can be detected by the detection module 13, in this state, the two clamping mechanisms 5 are in a relaxed state under the extrusion of the two pressing rods 4 on the bottom surface of the upper clamping cover 2, and the ventilation mechanism 6 can work to ventilate the surrounding of the fingers.

[0041] After a certain period of time, the motor 10 opens the upper clamping cover 2 to a second working angle with a degree greater than the first working angle to release the clamped part of the fingers, the opening degree of the second working angle is between 70-90 degrees, the two clamping mechanisms 5 can clamp the fingers from both sides, the two pressing rods 4 on the bottom surface of the upper clamping cover 2 are separated from the two clamping mechanisms 5, the two clamping mechanisms 5 clamp the side surface of the fingers from both sides, the fingers are kept on the lower clamping cover 1, and the two clamping mechanisms 5 drive the transmission mechanism 7 to drive the lifting mechanism 9 to move up and down, and then the auxiliary mechanism 8 drives the fingertips of the fingers to move up and down.

[0042] The above is only a preferred embodiment of the application and is not used to limit the application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A pulse blood oxygen detection device, comprising a lower clamping cover (1) and an upper clamping cover (2) hinged to the lower clamping cover (1), the opposite side of the lower clamping cover (1) and the upper clamping cover (2) are both provided with a clamping groove (3) for clamping a finger, and a detection module (13) is arranged in the clamping groove (3) of the lower clamping cover (1), characterized in that, The tail side of the lower clamp cover (1) is fixed with a motor (10) for driving the opening and closing of the lower clamp cover (1), two pressing rods (4) are fixed in the clamping groove (3) of the upper clamp cover (2), the clamping mechanism (5) corresponding to the two pressing rods (4) is arranged in the clamping groove (3) of the lower clamp cover (1), when the upper clamp cover (2) is closed on the lower clamp cover (1), the two clamping mechanisms (5) are respectively extruded by the two pressing rods (4) and are opened to both sides, when the upper clamp cover (2) is opened from the lower clamp cover (1), the two clamping mechanisms (5) can clamp the fingers from both sides, the middle position of the tail of the lower clamp cover (1) is provided with a ventilation mechanism (6) for ventilating around the fingers and a transmission mechanism (7) driven by the ventilation mechanism (6), an auxiliary mechanism (8) for supporting the fingertips is arranged between the two clamping mechanisms (5), a lifting mechanism (9) for lifting movement in cooperation with the transmission mechanism (7) when the two clamping mechanisms (5) clamp the fingers is arranged between the ventilation mechanism (6) and the auxiliary mechanism (8), the cooperation of the auxiliary mechanism (8) and the lifting mechanism (9) drives the fingertips to move up and down.

2. The pulse oximetry detection device of claim 1, wherein, The clamping mechanism (5) comprises a swing rod (51), the swing rod (51) comprises a long rod section and a short rod section integrally connected with the long rod section, the proximal ends of the long rod section and the short rod section of the swing rod (51) are hinged to the lower clamp cover (1) through an axis (53), and a torsional spring (54) is clamped at the hinge, the end of the short rod section of the swing rod (51) is fixed with a clamping column (52), the proximal side of the clamping columns (52) of the two clamping mechanisms (5) is provided with an arc-shaped concave surface, and the end of the long rod section of the swing rod (51) is fixed with a U-shaped fork (55).

3. The pulse oximetry detection device of claim 1, wherein, The tail sides of the lower clamp cover (1) and the upper clamp cover (2) are fixed with hinge seats (11), the two hinge seats (11) of the lower clamp cover (1) are rotationally connected with a pin shaft (12), the hinge seat (11) of the upper clamp cover (2) is fixedly connected with the pin shaft (12), the motor (10) is fixed in one side of the hinge seat (11) of the lower clamp cover (1), and the output end of the motor (10) is fixedly connected with the pin shaft (12).

4. The pulse oximetry detection device of claim 2, wherein, The two pressing rods (4) are between the short rod sections of the two swing rods (51), the two swing rods (51) tend to rotate to the falling points of the two pressing rods (4) under the elastic force of the torsional spring (54), and the diameters of the two pressing rods (4) gradually decrease from top to bottom.

5. The pulse oximetry detection device of claim 2, wherein, The ventilation mechanism (6) comprises an outer shell (61), a hole is formed in the tail of the lower clamp cover (1), the outer shell (61) is fixed outside the hole of the lower clamp cover (1), a motor (62) is fixed in the outer shell (61) and located in the hole, a fan blade (63) is fixed on the output shaft of the motor (62), and a worm (64) is fixed on the end of the output shaft of the motor (62).

6. The pulse oximetry detection device of claim 5, wherein, The transmission mechanism (7) comprises a transmission rod (71), two supports (710) are rotatably connected outside the transmission rod (71), the two supports (710) are fixed to the lower clamping cover (1), a worm gear (72) fixed to the transmission rod (71) is arranged between the two supports (710), the worm gear (72) is engaged with the worm (64), a sliding sleeve (73) is arranged outside the two ends of the transmission rod (71), a spline rod (77) fixed to the end of the transmission rod (71) is slidably arranged in the sliding sleeve (73), a convex ring (75) fixed to the transmission rod (71) is arranged between the sliding sleeve (73) and the support (710), the sliding sleeve (73) is elastically connected with the convex ring (75) through a spring (76), a first tooth disc (74) is fixed to one end of the sliding sleeve (73) away from the spring (76), a through hole is formed in the lower clamping cover (1) on the side opposite to the first tooth disc (74), and a second tooth disc (78) is rotatably connected in the through hole, the opposite sides of the first tooth disc (74) and the second tooth disc (78) are provided with annular teeth capable of being engaged with each other when the two sides are attached to each other, and a connecting rod (79) is hinged to the outer side of the second tooth disc (78); the center of the hinge joint of the connecting rod (79) and the second tooth disc (78) is eccentrically arranged with the center of the second tooth disc (78).

7. The pulse oximetry detection device of claim 6, wherein, The sliding sleeve (73) passes through the U-shaped fork (55) transversely, and the first tooth disc (74) is abutted against the U-shaped fork (55) under the action of the elastic force of the spring (76).

8. The pulse oximetry detection device of claim 7, wherein, The lifting mechanism (9) comprises a lifting plate (92) and sliding plates (91) fixed to the two ends of the lifting plate (92), the two sliding plates (91) are vertically and slidably connected with the lower clamping cover (1), one end of each of the two sliding plates (91) extends out of the lower clamping cover (1) and is hingedly connected with the connecting rod (79), and one side of the sliding plate (91) facing the auxiliary mechanism (8) is fixed with a pair of strip-shaped teeth (93).

9. The pulse oximetry detection device of claim 8, wherein, The auxiliary mechanism (8) comprises two supports (81), the two supports (81) are fixed to the lower clamping cover (1), V-shaped frames (82) are hingedly connected to the two supports (81), the V-shaped frames (82) are fixed with fan-shaped teeth (83) engaged with the strip-shaped teeth (93) at the hinge joints with the supports (81), the two ends of the V-shaped frame (82) are fixed with pressing wheels (84), a guard plate (85) fixed to the two V-shaped frames (82) is arranged between the two pressing wheels (84), and the lifting plate (92) and the guard plate (85) are both provided with air holes (94).

10. A method of using a detection device, the pulse oximetry detection device of claim 1, wherein, By motor one (10) work will open the upper cover (2) to the first working angle, the fingers to the lower cover (2) between the slot (3) and make the fingers between the two clamping mechanism (5), the fingers on the auxiliary mechanism (8), and then through the motor one (10) will close the upper cover (2) on the lower cover (1) and the fingers are clamped, so as to be able to detect the pulse blood oxygen through the detection module (13), the state of two clamping mechanism (5) under the extrusion of the two pressure bar (4) on the bottom of the upper cover (2) in a relaxed state, can be through the ventilation mechanism (6) work on the finger around the ventilation; After a certain period of time, the motor one (10) will open the upper cover (2) to the second working angle greater than the first working angle and release the part of the fingers, while the two pressure bar (4) on the bottom of the upper cover (2) is separated from the two clamping mechanism (5), the two clamping mechanism (5) from both sides to the inside of the clamping finger side, so that the fingers remain on the lower cover (1), while the two clamping mechanism (5) clamping finger at the same time drive transmission mechanism (7) driven by the lifting mechanism (9) reciprocating lifting, and then by the auxiliary mechanism (8) and the lifting mechanism (9) cooperation of the auxiliary mechanism (8) driven by the finger tip up and down movement.

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