CN111544009B - Blood oxygen detection device and control method thereof - Google Patents
Blood oxygen detection device and control method thereof Download PDFInfo
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- CN111544009B CN111544009B CN202010416008.1A CN202010416008A CN111544009B CN 111544009 B CN111544009 B CN 111544009B CN 202010416008 A CN202010416008 A CN 202010416008A CN 111544009 B CN111544009 B CN 111544009B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
- A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
- A61B5/14552—Details of sensors specially adapted therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
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- A61B5/6826—Finger
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F2007/0001—Body part
- A61F2007/0029—Arm or parts thereof
- A61F2007/0037—Finger
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F2007/0059—Heating or cooling appliances for medical or therapeutic treatment of the human body with an open fluid circuit
- A61F2007/006—Heating or cooling appliances for medical or therapeutic treatment of the human body with an open fluid circuit of gas
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Abstract
The present disclosure relates to a blood oxygen detection device, including: the blood oxygen sensing assembly comprises a clamping sheet for clamping a finger of a user and a clamping force applying element for applying clamping force to the clamping sheet, wherein the clamping force applying element applies the clamping force to the clamping sheet to enable the blood oxygen sensing element arranged on the clamping sheet and facing the finger of the user to be tightly attached to the finger of the user; the gesture detection assembly comprises a clamping piece distance detection element and a gesture detection module, wherein the clamping piece distance detection element is used for measuring the distance between a pair of clamping pieces used for clamping the fingers of a user, so that the initial clamping piece distance of the specific user measured when the finger-clamping type detection device is started and the instant clamping piece distance in the real-time blood oxygen detection process are obtained; and the control component compares the initial clamping piece distance with the instant clamping piece distance, and instructs the execution component to execute operation to adjust the distance between the clamping pieces to be within a preset distance range when the distance deviation between the initial clamping piece distance and the instant clamping piece distance exceeds a preset difference value.
Description
Technical Field
The present disclosure relates to a wearable device, and more particularly, to a blood oxygen detecting device capable of adjusting temperature and a clamping degree based on a change in a posture of a finger, and more particularly, to a finger clip type blood oxygen probe.
Background
With the progress of photoelectric detection technology, the detection of human physiological parameters is mostly measured in a non-invasive way. Blood oxygen concentration is an important indicator of the human body. Based on the blood oxygen concentration of the human body, the health care tea has important significance for the daily health care of the human body. For the elderly or patients, continuous blood oxygen concentration measurement is of great help to grasp the physical health condition of the patients or elderly. In order to facilitate the continuous measurement of indexes such as blood oxygen concentration, electrocardio, blood pressure and the like of old people or patients, people provide a finger-clip type detection device which is convenient to detect. The existing finger-clipping type blood oxygen detection device comprising an upper clamping piece and a lower clamping piece is simple and easy to use, and the blood oxygen content value of a user can be measured by arranging the data detection element and the data acquisition element on the clamping pieces and placing the finger of the user between the two clamping pieces. The finger-clamping type detection device is convenient to wear and very suitable for long-time real-time monitoring.
However, the blood oxygen flow condition in the finger being measured will have different effects on the measurement result of the blood oxygen detecting device. The blood oxygen flowing condition in the measured finger is closely related to the objective condition of the finger part. For example, the fingers are squeezed deeply, which results in narrowing of blood vessels and poor blood flow at the finger area. As another example, the jaws may become too sealed to each other, resulting in a user's fingers being in a state for an extended period of time, the fingers overheating, the fingers swelling, and blood being in a quiescent state. For another example, when a human body is in a sleep state, the arm is dropped, so that the detected finger is in a state that the blood at the tail end is difficult to return and is in a congestion state. This is all the situation that the blood oxygen detecting device is difficult to accurately detect the blood oxygen continuously for a long time, and in these situations, the blood oxygen detecting device detects the inaccurate blood oxygen output value or even no measured value.
Moreover, in the case of long-time detection of bedridden patients who usually need night or have inconvenient movement, if the clamping degree of the finger-clip type detection device is not enough, the worn finger-clip type detection device is easy to fall off. If the grip is too tight, it may lead to ischemia of the finger tip. The long ischemia time can lead to the necrosis of the fingers. Therefore, in a hospital environment, in order to prevent injury to a patient with difficulty in moving due to wearing of the finger-clip type detection device for a long time, a nurse needs to detect the condition of the fingers of the patient with difficulty in moving at regular time and adjust the finger at any time. In addition, some finger-clipped detectors have over-high temperature of the finger due to long-term wrapping of the finger, which may result in inaccurate detection results. For this reason, the detection needs to be interrupted so that it is performed after the finger has returned to normal temperature, so that continuous monitoring of the physiological parameter is not obtained.
Therefore, various solutions have been proposed to achieve continuity of detection and to prevent damage to the hand due to fingers being held by the finger grips for a long time, for example, by detecting the temperature of the fingers or by detecting the pressure received by the fingers. However, since the temperature of the human body is the same for each part, and the hardness of the muscle tissue of the fingers is different, it is difficult to obtain a finger clip type blood oxygen detecting device which is common for all users, and the initialization process for controlling the temperature and the pressure is professional for the users, and requires special training and instruction to enable the users to use the device correctly. This causes great trouble to the ordinary user.
Therefore, a blood oxygen detecting device capable of adjusting the holding state of the finger-clipped blood oxygen detecting device to the finger of the user in real time to obtain an accurate blood oxygen detecting result is needed.
Disclosure of Invention
To this end, in order to eliminate the above-mentioned problems of the prior finger-clip type blood oxygen detecting device, the present disclosure provides a blood oxygen detecting device, comprising: the blood oxygen sensing assembly comprises a clamping sheet for clamping a finger of a user and a clamping force applying element for applying clamping force to the clamping sheet, wherein the clamping force applying element applies the clamping force to the clamping sheet to enable the blood oxygen sensing element arranged on the clamping sheet and facing the finger of the user to be tightly attached to the finger of the user; the gesture detection assembly comprises a clamping piece distance detection element and a gesture detection module, wherein the clamping piece distance detection element is used for measuring the distance between a pair of clamping pieces used for clamping the fingers of a user, so that the initial clamping piece distance of the specific user measured when the finger-clamping type detection device is started and the instant clamping piece distance in the real-time blood oxygen detection process are obtained; and the control component compares the initial clamping piece distance with the instant clamping piece distance, and instructs the execution component to execute operation to adjust the distance between the clamping pieces to be within a preset distance range when the distance deviation between the initial clamping piece distance and the instant clamping piece distance exceeds a preset difference value.
Blood oxygen detection device according to this disclosure, it still includes: the heating element heats the fingers of the user in the process that the executing component executes operation to increase the distance between the clamping sheets to be within the preset distance range, so that the fingers of the user are restored to the normal temperature of the human body.
According to the blood oxygen detecting device of the present disclosure, the heating element is a micro-heat blower which generates hot air with a constant temperature equal to the temperature of the human body, and the hot air is blown to the holding sheet contacted with the finger of the user.
According to the blood oxygen detection device disclosed by the disclosure, through holes are uniformly arranged on the clamping sheet, so that hot air generated by the micro hot air blower is directly contacted with fingers of a user through the through holes.
Blood oxygen detection device according to this disclosure, it still includes: the refrigerating element cools the fingers of the user in the process that the executing assembly executes operation to reduce the distance between the clamping sheets to be within a preset distance range, so that the fingers of the user can recover to the normal temperature of the human body.
According to the blood oxygen detection device of the present disclosure, the refrigeration element is a semiconductor refrigeration element, and is distributed on the surface of the holding sheet contacting with the user, and directly contacts with the finger of the user to reduce the temperature of the finger.
According to this blood oxygen detection device of this disclosure, wherein, the executive component includes step-by-step unit and drive mechanism, step-by-step unit drive mechanism, drive mechanism drives the holding piece and makes a pair of holding piece carry out the motion of opening and shutting.
The blood oxygen detecting device according to the present disclosure, wherein the stepping unit performs stepping movement as the opening and closing operation of the grip piece is reacted via the transmission mechanism without being controlled by the control component.
The blood oxygen detection device according to the present disclosure, wherein the transmission mechanism is a rack-and-pinion engagement transmission mechanism.
The blood oxygen detecting device according to the present disclosure, wherein the predetermined difference is greater than a minimum step size unit of the stepping unit.
The blood oxygen detecting device according to the present disclosure, wherein the comparing unit compares and calculates the blood oxygen concentration deviation between the detected instant blood oxygen concentration and the average value of the blood oxygen concentration within the predetermined time period after the blood oxygen detection is started for a predetermined time period, and the instruction unit instructs the stepping unit of the executing component to execute the predetermined number of reciprocating movements within the predetermined stepping range when the blood oxygen concentration deviation is larger than the predetermined blood oxygen concentration deviation value.
According to another aspect of the present disclosure, there is provided a method of controlling a blood oxygen detection device, comprising: the gesture detection assembly acquires an initial clamping piece distance between clamping pieces of the blood oxygen sensing assembly based on the determined input of a user and detects an instant clamping piece distance between the clamping pieces in real time after blood oxygen detection starts; a comparison unit of the control assembly compares and calculates the distance deviation between the initial clamping piece distance and the instant clamping piece distance; and when the distance deviation exceeds a preset difference value, the instruction unit of the control assembly instructs the execution assembly to execute operation to adjust the distance between the clamping sheets to be within a preset distance range.
The method for controlling the blood oxygen detection device according to the present disclosure further comprises: the instruction unit instructs the execution assembly to execute operation to increase the distance between the clamping sheets to be within a preset distance range, and simultaneously instructs the heating element to heat the fingers of the user, so that the fingers of the user are restored to the normal temperature of the human body.
The method for controlling the blood oxygen detection device according to the present disclosure further comprises: the instruction unit instructs the execution assembly to execute operation to reduce the distance between the clamping sheets to be within a preset distance range, and instructs the refrigeration element to cool the fingers of the user, so that the fingers of the user are restored to the normal temperature of the human body.
The method for controlling the blood oxygen detection device according to the present disclosure further comprises: the comparing unit compares and calculates the blood oxygen concentration deviation between the detected instant blood oxygen concentration and the blood oxygen concentration average value in the preset time period after the blood oxygen detection is started for a preset time period, and the instruction unit instructs the stepping unit of the execution component to execute the reciprocating motion for the preset times in the preset stepping range when the blood oxygen concentration deviation is larger than the preset blood oxygen concentration deviation value.
With the blood oxygen detecting apparatus and the method of controlling the blood oxygen detecting apparatus according to the present disclosure, each user can determine an optimal clamping state suitable for himself by his/her own feeling. In addition, in the using process, the blood oxygen concentration detection device can be automatically adjusted to the range of the optimal clamping state of the user based on different clamping states, so that the possible damage to the fingers of the user caused by the blood oxygen detection device in the long-time using process is effectively eliminated, and the blood oxygen concentration of the user can be accurately detected for a long time.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a schematic diagram illustrating the principle structure of the blood oxygen detecting device according to the present disclosure.
FIG. 2 is a schematic diagram illustrating one embodiment of a blood oxygen detection device according to the present disclosure.
Fig. 3 is a flow chart illustrating a method for controlling the blood oxygen detecting device 100 according to the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, the first clamping piece may also be referred to as a second clamping piece, and similarly, the second clamping piece may also be referred to as a first clamping piece, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
For a better understanding of the present disclosure, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
Fig. 1 is a schematic diagram illustrating the principle structure of the blood oxygen detecting device according to the present disclosure. As shown in fig. 1, the blood oxygen detecting apparatus 100 includes a blood oxygen sensing component 110, a posture detecting component 120, a control component 130 and an executing component 140. The blood oxygen sensing assembly 110 includes grip sheets 111 and 112 for gripping a user's finger and a gripping force applying member 113 for applying a gripping force to the grip sheets 111 and 112.
The clamping force applied by the clamping force applying member 113 to the clamping tabs 111 and 112 causes the blood oxygen sensing member 114 disposed on the clamping tabs facing the user's finger to be in close proximity to the user's finger. The posture detecting unit 120 includes a gripping piece distance detecting member 121 (shown in fig. 2) for measuring a distance between a pair of gripping pieces 111 and 112 for gripping a user's finger. For initially using the blood oxygen detecting device 100 according to the present disclosure, first, the user may lift the grip sheets 111 and 112 by himself to overcome the grip-force applying member 113 applying the grip force so that the grip sheets 111 and 112 are closed, so that the user places the finger at the finger placement place between the grip sheets 111 and 112 while making the two grip sheets 111 and 112 grip his finger with the grip force that is comfortable to himself. FIG. 2 is a schematic diagram illustrating one embodiment of a blood oxygen detection device according to the present disclosure. As shown in FIG. 2, when the user feels the holding force in a comfortable state, a determination button, such as an "OK" button, disposed at a side of the holding piece 111 or 112 is pressed, thereby determining an initial holding state of the blood oxygen detecting device exclusively for the user. The posture detecting member 120 disposed on the upper and lower clamping pieces 111 and 112 continuously detects the distance between the clamping pieces 111 and 112 while the user performs an initialization operation. When the user presses the determination button, the control unit 130 acquires an initial distance for the user between the grip pieces 111 and 112 detected by the posture detection unit 120, and saves the initial distance as the most comfortable grip piece distance for the user in the local storage unit 132. In this manner, upon clamping blood oxygen sensing component 110 to the user's finger, gesture detection component 120 continuously detects the distance between clamping tabs 111 and 112 where blood oxygen sensing component contacts the user's finger, through the user's feedback of the degree of clamping comfort, and saves this distance as an initial distance value. If, after pressing the decision button, the user feels that the distance just determined is not comfortable, it is possible to adjust again until it is comfortable and the decision button is pressed. Thus, the user-optimum grip tab distance stored by the control component 130 is the distance detected by the gesture detection component 120 when the user last pressed the ok button. This means that any user can simply modify the optimum grip tab distance for himself by pressing the decision button. This therefore facilitates simple adjustment of the same device to suit different users. The clamping force application member 113 is, for example, a compression spring.
At the same time when the user presses the OK button, the blood oxygen sensing component 110 also starts to continuously sense the blood oxygen content of the finger portion of the user, and continuously outputs the blood oxygen detection result to the control component 130, so that the user can continuously detect the oxygen saturation level of blood.
During the continuous blood oxygen concentration detection process of the blood oxygen detecting apparatus 100, the distance between the holding sheets 111 and 112 may be increased or decreased for various reasons. For example, after a period of blood oxygen detection, there may be some instances where the user's finger muscles are relatively soft, resulting in a relatively tight grip of the initially disposed clamping force applying element 113 of blood oxygen sensing assembly 110, such that the user's finger muscles are gradually compressed, resulting in a gradual decrease in the clamping distance between the initially disposed clamping tabs. Since the distance between the clamping pieces 111 and 112 of the clamping force applying member 113 of the blood oxygen sensing assembly 110 is small enough to exceed a predetermined limit, the user's finger may be subjected to an excessive clamping force, thereby causing ischemia to occur to the finger. The ischemia over time will cause necrosis of the finger and thus damage to the user's finger. Therefore, in order to prevent the user from damaging the gripping force by the fingers, the gripping force of the gripping piece needs to be adjusted.
The blood oxygen detection device 100 according to the present disclosure provides an adjustment structure, namely an actuating assembly 140 for adjustment. The executing component 140 performs an operation under the instruction of the control component 130 to adjust the detected instant distance between the clamping pieces 111 and 112 to be within a predetermined distance range. Specifically, during continuous blood oxygen monitoring, the control component 130 obtains the instant distance between the clamping pieces 111 and 112 detected by the gesture detection component 120 in real time. The comparison unit 131 of the control component 130 compares the detected instant distance with the initially set initial distance. When the deviation between the instant distance obtained by the control unit 130 and the initial distance is larger than the predetermined deviation value, the control unit 130 issues an operation instruction to the executing unit 140 so that the executing unit 140 starts to perform an operation on the clamping pieces 111 and 112. Generally, the actuator assembly 140 includes a drive element 141 and a transmission 142. The drive element 141 may be, for example, a stepping unit or a stepping motor, and the transmission 142 may be a gear and rack transmission (not shown). When the instant distance is smaller than the initial distance, the stepping unit or stepping motor 141 performs a stepping operation to drive the driving mechanism 142 such that the clamping pieces 111 and 112 obtain a force opposite to the clamping force applied by the clamping force applying member 113, thereby expanding the distance between the clamping pieces 111 and 112 and thus reducing the pressure applied by the clamping pieces 111 and 112 to the user's finger.
On the contrary, some human muscle tissues are relatively elastic or not easily squeezed, and the distance between the clamping pieces can be kept within the set distance value range in the long-time detection process under the condition of the initially set optimal distance between the clamping pieces. However, since the fingers are in a grip-wrapped state for a long time, heat of the hand is hard to be radiated, resulting in a rise in temperature, thereby swelling the fingers, overcoming the grip force applied between the grip sheets 111 and 113 by the grip-force applying member 113, thereby pushing the grip sheets 111 and 113 apart, so that the instant distance between the grip sheets 111 and 113 increases. During continuous blood oxygen monitoring, the control unit 130 obtains the instant distance between the clamping pieces 111 and 112 detected by the gesture detection unit 120 in real time. When the posture detecting member 120 obtained by the control member 130 detects that the deviation between the instant distance between the gripping pieces 111 and 113 and the initial distance is larger than the predetermined deviation value, the control member 130 issues an operation instruction to the executing member 140 so that the executing member 140 starts to perform an operation on the gripping pieces 111 and 112. Generally, when the instant distance of the step unit or the step motor 141 of the actuating assembly 140 is greater than the initial distance, the step unit or the step motor 141 performs a step operation to drive the transmission mechanism 142 such that the clamping sheets 111 and 112 obtain the same force as the clamping force applied by the clamping force applying member 113, thereby reducing the instant distance between the clamping sheets 111 and 112, increasing the pressure applied by the clamping sheets 111 and 112 on the user's finger, thereby squeezing the finger and enhancing the blood circulation at the finger.
Further, when the posture detecting unit 120 detects that the distance between the holding pieces 111 and 112 is less than the lower limit of the distance range, the finger is usually in an ischemic state due to being held for a long time, and thus the temperature thereof is usually lower than the normal temperature of the finger. Such a low temperature ischemia condition inevitably results in a blood pressure level in the finger part lower than the blood oxygen level in other parts of the human body, and therefore the measured blood oxygen level will not correctly reflect the blood oxygen level in the human body. Therefore, in order to obtain accurate blood oxygen concentration data of a human body from the finger, the measured finger needs to be heated in time, so that the temperature of the finger returns to the normal body temperature range of the finger when the clamping piece is loosened to be within the optimal measuring distance range. For this reason, the present disclosure provides the temperature adjustment assembly 150 on the clamping sheet, so that while the gesture detection assembly 120 detects that the distance between the clamping sheets 111 and 112 deviates from the lower limit of the distance range, the control assembly 130 controls the actuator 141 of the actuator 140 to drive the clamping sheets 111 and 112 to separate within the predetermined distance range, and also controls the heating element 151 or the cooling element of the temperature adjustment assembly 150 to perform heating or cooling processing on the finger, so as to adjust the finger temperature to the normal finger temperature.
Specifically, on the one hand, the heating element 151 is, for example, a micro-heat blower 151, and hot air generated by the heater warms the holding pieces 111 and 112 in contact with the fingers, thereby raising the temperature of the fingers by the contact of the holding pieces 111 and 112 with the fingers. Or the hot air generated by the micro-hot air blower is directly blown to the fingers through the air holes 153 on the clamping sheet, so that the compressed fingers are heated under the action of the hot air. Thereby causing the blood vessels of the finger portion to expand rapidly, so that the blood flow in the blood vessels of the finger portion returns to a normal smooth flow. Therefore, the blood oxygen concentration of the finger part is quickly equal to that of other parts of the human body, so that the blood oxygen detection component can obtain the accurate blood oxygen concentration of the human body. The temperature of the hot air blown by the micro hot air blower 151 is not higher than the normal temperature of the human body, and the air is blown for a time not longer than a predetermined time, for example, between 5 and 15 seconds, and usually 8 seconds or 10 seconds is suitable. On the other hand, when the gesture detection assembly 120 detects that the distance between the clamping pieces 111 and 112 is greater than the upper limit of the distance range, the control assembly 130 controls the actuator 141 of the actuator 140 to bring the clamping pieces 111 and 112 to close within the predetermined distance range, and at the same time, controls the cooling element 152 of the temperature adjustment assembly 150 to cool the finger, so as to adjust the temperature of the finger to the normal temperature of the finger. The cooling element 152 is, for example, a semiconductor cooling element 152 that reduces the finger temperature by performing a cooling process on the holding pieces 111 and 112 that are in contact with the fingers. Therefore, the blood oxygen concentration of the finger part is quickly equal to that of other parts of the human body, so that the blood oxygen detection component can obtain the accurate blood oxygen concentration of the human body. In addition, the actuator 141 performs a stepping motion as the opening and closing operation of the clamping pieces 111 and 112 is reacted via the transmission mechanism 142 without being controlled by the control unit 130. The transmission mechanism 142 is a rack and pinion engagement-enabled transmission mechanism. And the rack drives the clamping pieces 111 and 112 to open and close. This is a conventional mechanism in the field of mechanical transmissions and will not be described in detail here.
In another case, when the user is in a sleep state during continuous monitoring of blood oxygen concentration, the user's hand is hanging down to cause the detected finger to be in a hyperemic state, so that the distance deviation between the instant distance between the clamping pieces 111 and 112 and the initial distance may be much larger than the predetermined deviation distance. At this time, blood at the tip of the finger is almost at rest. This also results in the local blood oxygen concentration of the finger not being the same as the blood oxygen concentration of the user's body and the blood oxygen concentration value obtained by the blood oxygen sensing component will be relatively low. When the obtaining gesture detecting component 120 detects that the distance between the clamping pieces 111 and 112 is greater than the initial distance and the blood oxygen concentration sensed by the blood oxygen sensing component is lower than the conventional blood oxygen concentration of the user, the control unit 130 sends an instruction to the executing component 140, so that the stepping unit 141 of the executing component 140 executes reciprocating stepping motion for a predetermined number of times, and the clamping pieces 111 and 112 are driven by the transmission mechanism 142 to execute relative reciprocating motion, so as to generate a massage effect of repeated squeezing and relaxing effect on the finger of the user, so as to accelerate the blood circulation at the end of the finger of the user, thereby being beneficial to obtaining that the blood oxygen concentration at the finger part is the same as the blood oxygen concentration at the body of the user. The predetermined number of reciprocating step movements is, for example, 5 to 15, and usually 8 or 10, are suitable.
Alternatively, the posture detecting unit 120 may further include a posture detecting element of the hand, which detects whether the hand is in a sagging state, and after a predetermined time in the sagging state, the instruction unit 133 of the control unit 130 issues an instruction to the executing unit 140 to perform a massage operation of repeatedly squeezing and relaxing so that blood of the finger is circulated at an accelerated speed.
Although the stepping unit 141 shown in fig. 2 is provided outside the holding piece, the stepping unit 141 may be disposed inside the holding piece 111 or 112 as the not-shown transmission mechanism 142. Although the heating element 151 is disposed inside the front end of the holding piece 111, it may be disposed inside the holding piece 112. Similarly, the ventilation hole 153 and the cooling element 152 may be provided in different positions of the holding sheet 111 or 112. It is noted that the predetermined difference set by the present disclosure is greater than the minimum step unit of the actuator or stepper unit 141.
Fig. 3 is a flow chart illustrating a method for controlling the blood oxygen detecting device 100 according to the present invention. As shown in fig. 3, during the use of the blood pressure high detection apparatus 100, first, at step S310, an initial distance D1 suitable for the user between the clamping pieces 111 and 112 of the blood oxygen detection apparatus 100 is set. As described above, this initial distance D1 is the distance between the holding pieces detected by the posture detecting member 120 when the user presses the ok button, and at the same time, the control member 130 stores the initial distance D1 transmitted from the posture detecting member 120 in the storage element 132. Subsequently, at step S320, the control unit 130 acquires the instantaneous distance between the clamping pieces 111 and 112 detected by the posture detecting unit 120, and compares the magnitude of the instantaneous distance with the initial distance and the distance deviation. At step S330, the instruction unit 133 of the control component 130 issues an operation instruction to the stepping unit 141 of the execution component 140 when the distance deviation is larger than a predetermined difference. Specifically, it is determined at step S331 whether the instantaneous distance D is smaller than the initial distance D1. If the determination result is "no", it is determined at step S332 whether the instantaneous distance D is greater than the initial distance D1. If the determination result is "yes" at step S331, the process proceeds to step S333. If the determination result at step S332 is YES, the process proceeds to step S333. If the determination result at step S332 is "NO", the process returns to step S320. At step S333, it is determined whether the distance deviation | D-D1| is greater than a predetermined difference DTIf the determination result is "NO", the step returns to the step S320, and if the determination result is "YES", the step S334 determines whether the currently detected instant blood oxygen concentration Sp is less than the predetermined blood oxygen concentration Spt. Generally the predetermined blood oxygen concentration value SptIs the average of the detected blood oxygen concentrations over a predetermined period of time after the start of the detection. Because, in the initial stage of detection, the user's finger has not yet been exposedThe blood oxygen concentration at the finger basically reflects the blood oxygen concentration level of the whole human body of the user under the influence of external factors. When the determination result is "yes" in step S334, the blood oxygen bias value | Sp-Sp is determined in step S335tIf | is greater than the predetermined blood oxygen concentration deviation value SpDtWhen the determination result is yes at step S335, the result is fed back to the instruction component 133 of the control component 130, and the control process proceeds to step S340. If the determination is made at step S335 as a result of no, the result is also fed back to the instruction component 133 of the control component 130 and the control process proceeds to step S340. Then at step S340, the instruction unit 133 issues an operation instruction corresponding to the determination result to the stepping unit 141 of the execution block 140 and the temperature adjustment block 150 based on the determination result at step S330. Finally, at step S350, the execution component 140 performs the instructed operation and the temperature adjustment component 150 performs the instructed temperature adjustment.
The basic principles of the present disclosure have been described in connection with specific embodiments, but it should be noted that it will be understood by those skilled in the art that all or any of the steps or components of the method and apparatus of the present disclosure may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or a combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present disclosure.
Thus, the objects of the present disclosure may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. Thus, the object of the present disclosure can also be achieved merely by providing a program product containing program code for implementing the method or apparatus. That is, such a program product also constitutes the present disclosure, and a storage medium storing such a program product also constitutes the present disclosure. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future.
It is also noted that in the apparatus and methods of the present disclosure, it is apparent that individual components or steps may be disassembled and/or re-assembled. These decompositions and/or recombinations are to be considered equivalents of the present disclosure. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.
The above detailed description should not be construed as limiting the scope of the disclosure. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present disclosure should be included in the scope of protection of the present disclosure.
Claims (13)
1. A blood oxygen detection device, the device comprising: blood oxygen sensing assembly, posture detection assembly, control assembly, heating element and execution assembly, wherein
The blood oxygen sensing assembly comprises a clamping sheet for clamping the finger of the user and a clamping force applying element for applying a clamping force to the clamping sheet, wherein the clamping force applying element applies the clamping force to the clamping sheet so that the blood oxygen sensing element arranged on the clamping sheet and facing the finger of the user is tightly attached to the finger of the user;
the gesture detection assembly comprises a clamping piece distance detection element and a gesture detection module, wherein the clamping piece distance detection element is used for measuring the distance between a pair of clamping pieces used for clamping the fingers of a user, so that the initial clamping piece distance of the specific user measured when the finger-clamping type detection device is started and the instant clamping piece distance in the real-time blood oxygen detection process are obtained;
the comparison unit of the control assembly compares the initial clamping piece distance and the instant clamping piece distance, and when the distance deviation between the initial clamping piece distance and the instant clamping piece distance exceeds a preset difference value, the instruction unit instructs the execution assembly to execute operation so as to adjust the distance between the clamping pieces to be within a preset distance range; and
the heating element heats the fingers of the user in the process that the executing component executes operation to increase the distance between the clamping sheets to be within the preset distance range, so that the fingers of the user are restored to the normal temperature of the human body.
2. The blood oxygen detecting device according to claim 1, wherein said heating element is a micro-heat blower which generates hot air having a temperature constant equal to the temperature of the human body, and blows the hot air toward the holding piece which is in contact with the finger of the user.
3. The blood oxygen detecting device according to claim 2, wherein the holding sheet has through holes uniformly arranged thereon, so that the hot air generated by the micro-heat blower directly contacts with the fingers of the user through the through holes.
4. The blood oxygen detection device of claim 1, further comprising: the refrigerating element cools the fingers of the user in the process that the executing assembly executes operation to reduce the distance between the clamping sheets to be within a preset distance range, so that the fingers of the user can recover to the normal temperature of the human body.
5. The blood oxygen detecting device according to claim 4, wherein said cooling element is a semiconductor cooling element disposed on the surface of said holding sheet contacting with the user, and directly contacting with the finger of the user to reduce the temperature of the finger.
6. The blood oxygen detecting device according to one of claims 1 to 5, wherein the actuating assembly comprises a stepping unit and a transmission mechanism, the stepping unit drives the transmission mechanism, and the transmission mechanism drives the holding pieces to make the pair of holding pieces perform opening and closing movements.
7. The blood oxygen detecting device according to claim 6, wherein the step unit performs the step movement as the opening and closing operation of the holding piece is reacted via the transmission mechanism without being controlled by the control unit.
8. The blood oxygen detecting device according to claim 7, wherein said transmission mechanism is a rack and pinion engaging transmission mechanism.
9. The blood oxygen detection device of claim 7, wherein the predetermined difference is greater than a minimum step size unit of a stepping unit.
10. The blood oxygen detecting device according to claim 6, wherein the comparing unit compares and calculates the blood oxygen concentration deviation between the detected instant blood oxygen concentration and the average value of the blood oxygen concentration in the predetermined time period after the blood oxygen detection is started for a predetermined time period, and the instructing unit instructs the stepping unit of the executing component to execute the predetermined number of reciprocating movements within a predetermined stepping range when the blood oxygen concentration deviation is larger than a predetermined blood oxygen concentration deviation value.
11. A method of controlling a blood oxygen detection device, comprising:
the gesture detection assembly acquires an initial clamping piece distance between clamping pieces of the blood oxygen sensing assembly based on the determined input of a user and detects an instant clamping piece distance between the clamping pieces in real time after blood oxygen detection starts;
a comparison unit of the control assembly compares and calculates the distance deviation between the initial clamping piece distance and the instant clamping piece distance;
and when the distance deviation exceeds a preset difference value, the instruction unit of the control assembly instructs the execution assembly to execute operation to adjust the distance between the clamping sheets to be within a preset distance range, and the instruction unit instructs the heating element to heat the fingers of the user while instructing the execution assembly to execute operation to increase the distance between the clamping sheets to be within the preset distance range, so that the fingers of the user are restored to the normal temperature of the human body.
12. The method of controlling an oximetry device of claim 11 further comprising: the instruction unit instructs the execution assembly to execute operation to reduce the distance between the clamping sheets to be within a preset distance range, and instructs the refrigeration element to cool the fingers of the user, so that the fingers of the user are restored to the normal temperature of the human body.
13. The method of controlling an oximetry device according to one of claims 11-12 further including: the comparing unit compares and calculates the blood oxygen concentration deviation between the detected instant blood oxygen concentration and the average value of the blood oxygen concentration in the preset time period after the blood oxygen detection is started for a preset time period, and the instruction unit instructs the stepping unit of the execution component to execute the reciprocating motion for the preset times in the preset stepping range when the blood oxygen concentration deviation is larger than the preset blood oxygen concentration deviation value.
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| CN113633284A (en) * | 2021-08-23 | 2021-11-12 | 徐州市永康电子科技有限公司 | Wireless pulse oximeter |
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