Magnetic attraction type physiological parameter probe

Abstract

Disclosed is a magnetic attraction type physiological parameter probe, which comprises a clamp assembly, a magnetic attraction assembly, and a sensor assembly. The clamp assembly comprises a first clamp part and a second clamp part oppositely arranged; an accommodation space for accommodating a measured site is formed between the first clamp part and the second clamp part; the first clamp part and the second clamp part are used for clamping the measured site. The magnetic attraction assembly comprises a first ferromagnetic element and a second ferromagnetic element arranged on the first clamp part and the second clamp part, respectively, and the first ferromagnetic element and the second ferromagnetic element are used for enabling, via magnetic force, the first clamp part and the second clamp part to have a movement tendency of approaching each other. The sensor assembly is arranged on the first clamp part and / or the second clamp part.

Description

A magnetic physiological parameter probe

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on March 21, 2024, with application number 202410329308.4 and invention name “A Magnetic Physiological Parameter Probe”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present invention relates to the technical field of health monitoring instruments, and in particular to a magnetic physiological parameter probe. Background Art

[0003] A blood oxygen saturation meter is a device used to measure blood oxygen saturation and is widely used in fields such as emergency care, disease diagnosis, and health monitoring. The blood oxygen saturation probe (abbreviated as the blood oxygen probe) in a blood oxygen saturation meter consists of a clamping assembly and a sensor element. The sensor element consists of a light-emitting diode (LED) and a photodiode (PD). The light-emitting diode emits red and infrared light of specific wavelengths onto the measured area, while the photodiode receives light transmitted or reflected by the measured area. The light signal received by the photodiode is analyzed to determine the subject's blood oxygen saturation.

[0004] In existing technology, the most common testing sites for oximeters are the fingers and toes. Research has shown that fingers and toes are used to detect peripheral blood vessels. When the patient is in shock or has cold fingers, the peripheral blood supply is poor and the pulse is weak. This is known in the industry as a poor perfusion index (PI). In this case, measurement accuracy deteriorates and sometimes even oxygen saturation cannot be measured. Furthermore, when a patient's limbs tremble due to illness, such as in patients with restlessness or Parkinson's disease, this can affect oxygen measurement. This is known in the industry as motion interference. Therefore, weak perfusion level and resistance to motion interference are important indicators of oximeter performance.

[0005] To solve the above technical problems, U.S. Patent Application No. US13 / 650,310 and European Patent Application Nos. EP16159667.1 and EP12787203.4 propose a photoplethysmography sensor for detecting the nose wing. The photoplethysmography sensor can detect multiple physiological parameters, including blood oxygen. In the existing patent documents, as shown in FIG1 , the sensor includes a clip body 100, a flexible circuit 500, and an elastomeric sleeve 700. The clip body 100 includes a first end 110 and a second end 130 facing the first end 110, wherein the first end 110 and the second end 130 are respectively provided with a first through hole and a second through hole. The flexible circuit 500 is attached to or adjacent to the holder 100 and includes a light emitter 510 disposed within or adjacent to a first through-hole and a light detector 520 disposed within or adjacent to a second through-hole. The light emitter 510 emits at least one of visible light, infrared light, and ultraviolet light, and faces the light detector 520. The light detector 520 detects light emitted from the light emitter 510 and transmitted through the detected portion. The elastic sleeve 700 includes a first elastic sleeve 710 and a second elastic sleeve 740. The first elastic sleeve 710 encloses a portion of the first end 110 and a portion of the flexible circuit connected to or adjacent to the light emitter 510. The second elastic sleeve 740 encloses at least a portion of the second end 130 and a portion connected to or adjacent to the light receiver 520.

[0006] Because the nose has a rich blood supply, fed by multiple cranial and facial arteries, it boasts a richer blood supply than peripheral arteries like those in the fingers. Even in shock, it maintains a certain blood supply, resulting in a good level of weak perfusion. Furthermore, the nose has less range of motion than the fingers, resulting in less motion interference from illness. Therefore, blood oxygen measurement in this area is more resistant to motion interference.

[0007] However, the prior art solution uses deformation of the clip body 100 to apply a clamping force to secure the sensor elastic sleeve 700 to the nose ala. Due to the short C-arm of the clip body, the applied elastic force is difficult to control, and even a small deformation can result in a significant compressive force. Furthermore, the thickness of the nose ala varies from person to person, making a single clip body difficult to adapt to different individuals. Prolonged wear can cause discomfort and affect measurement. More importantly, the clip body 100 extends deep into the elastic sleeve 700 and supports the light emitter 510 and light detector 520. The elastic force generated by the deformation of the clip body 100's C-arm is fully transmitted to the elastic sleeve 700, which directly contacts the nose ala and is internally supported by the clip body 100. Consequently, the clamping force is relatively large, creating a sense of pressure on the nose ala, which becomes more pronounced with prolonged use.

[0008] In addition, the existing patent uses a clamping body to fix the sensor on the nose wing. When wearing the sensor, the clamping body must be opened first, and then the sensor is clamped to the nose wing. Due to the physical properties of the clamping body, the greater the opening angle, the greater the elastic force generated. However, the sensor is very small and there is not enough space for operation. It is difficult to keep the sensor in an open state and insert it into the nose wing with bare hands. Therefore, additional tools are required to keep the sensor in an open state, which has the disadvantage of inconvenient wearing operation.

[0009] Therefore, the existing technology needs to be improved and enhanced. Technical issues:

[0010] The technical problem to be solved by the present invention is to provide a magnetic physiological parameter probe in response to the above-mentioned defects of the prior art, aiming to solve the problems of the prior art photoelectric volumetric pulse wave sensor being uncomfortable to wear for a long time and inconvenient to wear and operate. Technical solutions:

[0011] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows:

[0012] The present invention provides a magnetic physiological parameter probe, comprising:

[0013] A clamping assembly, the clamping assembly comprising a first clamping portion and a second clamping portion disposed opposite to each other, wherein a receiving space for accommodating a measured part is formed between the first clamping portion and the second clamping portion, and the first clamping portion and the second clamping portion are used to clamp on the measured part;

[0014] a magnetic attraction assembly, the magnetic attraction assembly comprising a first ferromagnetic element and a second ferromagnetic element respectively disposed on the first clamping portion and the second clamping portion, the first ferromagnetic element and the second ferromagnetic element being configured to cause the first clamping portion and the second clamping portion to move toward each other through a magnetic force;

[0015] A sensor component is provided on the first clamping portion and / or the second clamping portion. Beneficial effects:

[0016] Compared with the prior art, the present invention provides a magnetic physiological parameter probe, comprising: a clamping assembly, a magnetic assembly and a sensor assembly. The clamping assembly comprises a first clamping portion and a second clamping portion arranged opposite to each other, wherein a storage space for accommodating the measured part is formed between the first clamping portion and the second clamping portion, and the first clamping portion and the second clamping portion are used to clamp on the measured part. The magnetic assembly comprises a first ferromagnetic element and a second ferromagnetic element respectively arranged on the first clamping portion and the second clamping portion, wherein the first ferromagnetic element and the second ferromagnetic element are used to make the first clamping portion and the second clamping portion have a movement tendency to move closer to each other through magnetic force. The sensor assembly is arranged on the first clamping portion and / or the second clamping portion and faces the storage space. It can be seen that the present invention clamps the sensor assembly on the measured part through magnetic force, the clamping force is moderate, and the clamping force generated when used on measured parts of different thicknesses does not vary much, making it more comfortable to wear. Moreover, since the present invention does not provide the clamping force through an elastic part with strong elasticity as in the prior art, but provides the clamping force through magnetic force, it is easy to keep the physiological parameter probe in an open state by hand, and the physiological parameter probe of the present invention can be worn without using additional tools, making the wearing operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG1 is a schematic structural diagram of a nose clip sensor in the prior art.

[0018] FIG2 is a three-dimensional diagram of the magnetic physiological parameter probe provided by the present invention.

[0019] FIG3 is a left side view of the magnetic physiological parameter probe provided by the present invention.

[0020] FIG4 is a bottom view of the magnetic physiological parameter probe provided by the present invention.

[0021] FIG5 is a cross-sectional view taken along line AA of the first embodiment of the magnetic physiological parameter probe provided by the present invention.

[0022] FIG6 is a BB cross-sectional view of the first embodiment of the magnetic physiological parameter probe provided by the present invention.

[0023] FIG7 is a CC cross-sectional view of the first embodiment of the magnetic physiological parameter probe provided by the present invention.

[0024] FIG8 is a side view of a second embodiment of the magnetic physiological parameter probe provided by the present invention.

[0025] FIG9 is a cross-sectional view taken along line AA of a second embodiment of the magnetic physiological parameter probe provided by the present invention.

[0026] FIG10 is a cross-sectional view taken along line AA of the third embodiment of the magnetic physiological parameter probe provided by the present invention.

[0027] FIG11 is a BB cross-sectional view of the third embodiment of the magnetic physiological parameter probe provided by the present invention.

[0028] FIG12 is a cross-sectional view taken along line AA of a fourth embodiment of the magnetic physiological parameter probe provided by the present invention.

[0029] FIG13 is a BB cross-sectional view of the fourth embodiment of the magnetic physiological parameter probe provided by the present invention.

[0030] FIG14 is a CC cross-sectional view of the fourth embodiment of the magnetic physiological parameter probe provided by the present invention.

[0031] FIG15 is a side view of a fifth embodiment of the magnetic physiological parameter probe provided by the present invention.

[0032] FIG16 is a cross-sectional view taken along line AA of the fifth embodiment of the magnetic physiological parameter probe provided by the present invention.

[0033] FIG17 is a BB cross-sectional view of the fifth embodiment of the magnetic physiological parameter probe provided by the present invention.

[0034] FIG18 is a cross-sectional view taken along line AA of a sixth embodiment of the magnetic physiological parameter probe provided by the present invention.

[0035] FIG19 is a cross-sectional view taken along line AA of the seventh embodiment of the magnetic physiological parameter probe provided by the present invention.

[0036] FIG20 is a cross-sectional view taken along line AA of the eighth embodiment of the magnetic physiological parameter probe provided by the present invention.

[0037] FIG21 is a cross-sectional view taken along line AA of a ninth embodiment of the magnetic physiological parameter probe provided by the present invention. Modes for Carrying Out the Invention

[0038] In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0039] The present invention provides a magnetic physiological parameter probe, as shown in Figures 2, 3 and 4. The magnetic physiological parameter probe of the present invention includes a clamping assembly 10, a magnetic assembly 20 and a sensor assembly 30. The clamping assembly 10 includes a first clamping portion 11 and a second clamping portion 12 arranged opposite to each other, and a storage space for accommodating the measured part is formed between the first clamping portion 11 and the second clamping portion 12. The first clamping portion 11 and the second clamping portion 12 are made of opaque material to block external light and prevent external light from affecting physiological parameter monitoring. As shown in Figure 5, the magnetic assembly 20 of the present invention is arranged inside the first clamping portion 11 and the second clamping portion 12, so that the first clamping portion 11 and the second clamping portion 12 have a movement tendency to move closer to each other, so that the first clamping portion 11 and the second clamping portion 12 can be clamped on both sides of the measured part, such as on both sides of the user's nose or earlobe. The sensor assembly 30 of the present invention is disposed on the first clamping portion 11 and / or the second clamping portion 12 to detect the detected portion clamped in the accommodating space.

[0040] Thus, the physiological parameter probe of the present invention is clamped to the measured part by magnetic force, with moderate clamping force. The clamping force does not vary significantly when used on measured parts of different thicknesses, making it more comfortable to wear. Furthermore, unlike the prior art, the present invention does not provide clamping force through a highly elastic clamping body. Although the connecting portion 13 is made of a flexible material, it has low elasticity and does not provide clamping force. When clamped to the measured part by magnetic force, the physiological parameter probe can be easily maintained in an open state by hand. The physiological parameter probe of the present invention can be worn without the use of additional tools, making it more convenient to wear.

[0041] Example 1

[0042] As shown in FIG5 , the magnetic attraction assembly 20 of this embodiment includes a first ferromagnetic element 21 and a second ferromagnetic element 22, respectively disposed on the first clamping portion 11 and the second clamping portion 12. The first ferromagnetic element 21 and the second ferromagnetic element 22 are used to cause the first clamping portion 11 and the second clamping portion 12 to move toward each other through magnetic force, so that the first clamping portion 11 and the second clamping portion 12 can be respectively clamped on both sides of the measured part. In this embodiment, the first ferromagnetic element 21 and the second ferromagnetic element 22 are made of ferromagnetic materials, such as iron, nickel, cobalt, neodymium iron boron, etc. When magnetized, ferromagnetic materials become magnets and have inherent magnetism. When unmagnetized, ferromagnetic materials, although not inherently magnetic, can be attracted by magnets. Therefore, in this embodiment, at least one of the first ferromagnetic element 21 and the second ferromagnetic element 22 is a magnetized ferromagnetic material, which can cause the first clamping portion 11 and the second clamping portion 12 to move toward each other through the action of magnetic force.

[0043] When both the first ferromagnetic element 21 and the second ferromagnetic element 22 are magnetized ferromagnetic materials, the magnetic poles of the first ferromagnetic element 21 facing the accommodating space are opposite to the magnetic poles of the second ferromagnetic element 22 facing the accommodating space. Therefore, according to the principle of "like poles repel and opposite poles attract", the first ferromagnetic element 21 and the second ferromagnetic element 22 attract each other, so that the first clamping portion 11 and the second clamping portion 12 have a tendency to move closer to each other. When one of the first ferromagnetic element 21 and the second ferromagnetic element 22 is a magnetized ferromagnetic material and the other is an unmagnetized ferromagnetic material, for example, the first ferromagnetic element 21 is magnetized and the second ferromagnetic element 22 is not magnetized, although the second ferromagnetic element 22 itself has no magnetic field, under the action of the magnetic field of the first ferromagnetic element 21, the first ferromagnetic element 21 and the second ferromagnetic element 22 can still attract each other, so that the first clamping portion 11 and the second clamping portion 12 have a tendency to move closer to each other.

[0044] It can be seen that the present invention clamps the physiological parameter probe on the measured part through magnetic force, the clamping force is moderate, and the clamping force generated when used on measured parts of different thicknesses does not vary much, making it more comfortable to wear.

[0045] On the other hand, since the magnetic force decreases as the distance between the first ferromagnetic element 21 and the second ferromagnetic element 22 increases, when the first clamping part 11 and the second clamping part 12 are opened before wearing the physiological parameter probe of this embodiment, the distance between the first ferromagnetic element 21 and the second ferromagnetic element 22 is large and the magnetic force generated is very small. Therefore, although the volume of the physiological parameter probe is very small, the physiological parameter probe can still be kept in an open state by hand when the operation is not very convenient. The physiological parameter probe of the present invention can be worn without using additional tools, and the wearing operation is more convenient.

[0046] The sensor assembly 30 of this embodiment can be a sensor assembly 30 for blood oxygen detection, including a light-emitting element and a light-sensitive element, making the magnetic physiological parameter probe of this embodiment a magnetic blood oxygen probe. The following describes the structure of the physiological parameter probe of this embodiment using a nose clip-type blood oxygen probe as an example. Therefore, the measured area in this embodiment is the nose wing.

[0047] The sensor assembly 30 can be arranged in two ways: transmission type and reflection type. The light-emitting element and photosensitive element of the transmission type blood oxygen probe are respectively arranged on both sides of the measured part. The light emitted by the light-emitting element passes through the measured part and reaches the photosensitive element, and the photosensitive element receives the light passing through the measured part. The light-emitting element and photosensitive element of the reflection type blood oxygen probe are arranged side by side on the same side of the measured part. The light emitted by the light-emitting element irradiates the measured part, and the photosensitive element receives the light reflected from the measured part.

[0048] Compared to a reflective structure, a transmissive structure provides more accurate blood oxygen detection results. Therefore, a transmissive structure is adopted in this embodiment. As shown in Figures 5 and 6, the sensor assembly 30 of this embodiment includes a first sensor element 31 and a second sensor element 32. The first sensor element 31 and the second sensor element 32 are respectively disposed on the inner side of the first clamping portion 11 and the inner side of the second clamping portion 12. One of the first sensor element 31 and the second sensor element 32 is a light-emitting element, and the other is a light-receiving element.

[0049] Compared with the transmissive structure, the light-emitting element and the photosensitive element of the reflective structure are arranged adjacent to each other, which is more convenient for circuit layout. Therefore, in other embodiments, the light-emitting element and the photosensitive element can also be arranged together on the inner side of the first clamping part 11 or the inner side of the second clamping part 12 to simplify the circuit layout.

[0050] Because the space around the nose is relatively small, the volume of the blood oxygen sensor should be minimized to facilitate wearing and minimize its impact on the subject's breathing. Therefore, as shown in Figures 5 and 6, in this embodiment, the first clamping portion 11 has a first mounting groove 111 on the side facing the accommodating space, within which the first ferromagnetic element 21 and the first sensing element 31 are disposed. A second mounting groove 121 is provided on the side facing the accommodating space, within which the second ferromagnetic element 22 and the second sensing element 32 are disposed. Preferably, as shown in Figure 7, the second ferromagnetic element 22 of this embodiment is annular in shape, with a hole defined in the center. The second sensing element 32 is disposed within the annular hole in the second ferromagnetic element 22. Similarly, the first ferromagnetic element 21 is also annular in shape, with a hole defined in the center. The first sensing element 31 is disposed within the annular hole in the first ferromagnetic element 21. Preferably, the middle holes of the first ferromagnetic element 21 and the second ferromagnetic element 22 of this embodiment are the same size. Thus, through the coordination of the above structures, the structure of the blood oxygen probe is more compact, thereby reducing the volume of the blood oxygen probe. In addition, because the first sensor element 31 and the second sensor element 32 are respectively located inside the first ferromagnetic element 21 and the second ferromagnetic element 22, the first sensor element 31 and the second sensor element 32 can be automatically aligned under the action of the magnetic field, thereby reducing the positional offset between the first sensor element 31 and the second sensor element 32 and improving the accuracy of blood oxygen detection. Specifically, the ring shape of the first ferromagnetic element 21 and the second ferromagnetic element 22 can be a circular ring, an elliptical ring, a square shape, etc.

[0051] Furthermore, in order to fix the first ferromagnetic element 21 and the second ferromagnetic element 22 in the first mounting groove 111 and the second mounting groove 121, respectively, in this embodiment, as shown in Figure 5, the inner sidewall of the first mounting groove 111 is provided with a first fixing clip 112 for abutting against the side of the first ferromagnetic element 21 facing the accommodating space, and the inner sidewall of the second mounting groove 121 is provided with a second fixing clip 122 for abutting against the side of the second ferromagnetic element 22 facing the accommodating space. The first fixing clip 112 and the second fixing clip 122 are arranged in the corresponding mounting groove without protruding in the direction of the accommodating space. The first ferromagnetic element 21 and the second ferromagnetic element 22 are just clamped by the first fixing clip 112 and the second fixing clip 122, thus avoiding the discomfort caused by the protruding first fixing clip 112 and the second fixing clip 122 contacting the measured part. In order to improve stability, the first fixing clip 112 and the second fixing clip 122 of this embodiment can be provided in plurality and evenly distributed on the inner sidewall of the corresponding mounting groove. In other embodiments, the first ferromagnetic element 21 and the second ferromagnetic element 22 may be fixed in the first installation groove 111 and the second installation groove 121 respectively by other means such as bonding, interference fit, etc.

[0052] Furthermore, the first mounting groove 111 and the second mounting groove 121 are filled with a transparent filling material covering the first sensor element 31 and the second sensor element 32, thereby forming a transparent window. The transparent window can further fix and protect the first sensor element 31 and the second sensor element 32 while ensuring light transmittance.

[0053] In other implementations, a first mounting groove 111 may be provided solely on the side of the first clamping portion 11 facing the accommodating space, or a second mounting groove 121 may be provided solely on the side of the second clamping portion 12 facing the accommodating space. In this case, the sensor assembly 30 may be disposed in the first mounting groove 111 or in the second mounting groove 121. Similarly, when the sensor assembly 30 is disposed solely in the first mounting groove 111, a transparent filling material covering the sensor assembly 30 is provided in the first mounting groove 111 to form a transparent window and fix the sensor assembly 30. When the sensor assembly 30 is disposed solely in the second mounting groove 121, a transparent filling material covering the sensor assembly 30 is also provided in the second mounting groove 121 to form a transparent window and fix the sensor assembly 30.

[0054] Furthermore, the blood oxygen sensor of this embodiment also includes a conductive component. To facilitate circuit layout, in this embodiment, as shown in Figure 5, the conductive component includes a first conductive part 41 and a second conductive part 42; the first end of the first conductive part 41 penetrates the first clamping part 11 and is electrically connected to the first sensor element 31, and the second end of the first conductive part 41 is used to electrically connect to an external vital sign detection device. The first end of the second conductive part 42 penetrates the second clamping part 12 and is electrically connected to the second sensor element 32, and the second end of the second conductive part 42 penetrates the first clamping part 11 and is electrically connected to the first end of the first conductive part 41. As a result, the two sensors are led out through the same conductive part, simplifying the circuit structure. In other embodiments, the first sensor element 31 and the second sensor element 32 can also be electrically connected to an external vital sign detection device through different conductive parts.

[0055] In this embodiment, as shown in Figure 5, the first conductive portion 41 and the second conductive portion 42 are two parts of the same flexible printed circuit board. To reduce bending of the flexible printed circuit board, facilitate assembly, and reduce the risk of damage to the flexible printed circuit board, a wire outlet 114 is provided on the first clamping portion 11. The first end of the first conductive portion 41 passes through the wire outlet 114 and enters the first clamping portion 11 to electrically connect to the first sensor element 31, thereby ensuring a straighter extension direction of the flexible printed circuit board. In other implementations, particularly for applications on the earlobe, a wire outlet 114 may also be provided on the second clamping portion 12. In this case, the first conductive portion 41 and the second conductive portion 42 can respectively pass through the wire outlets 114 on the first clamping portion 11 and the wire outlets 114 on the second clamping portion 12 to electrically connect to an external vital sign detection device. Alternatively, in this embodiment, the wire outlet 114 can be provided only on the second clamping portion 12. In this case, the first end of the first conductive portion 41 passes through the first clamping portion 11 and electrically connects to the first sensor element 31, while the second end of the first conductive portion 41 passes through the second clamping portion 12. The first end of the second conductive part 42 passes through the second clamping part 12 and is electrically connected to the second sensor element 32 and the first end of the first conductive part 41. The second end of the second conductive part 42 passes through the wire outlet 114 on the second clamping part 12 and is electrically connected to an external vital sign detection device.

[0056] As shown in Figure 5, in this embodiment, the first conductive portion 41 and the second conductive portion 42 are two parts on the same flexible circuit board; thus, the first sensor element 31 and the second sensor element 32 can also be supported and fixed by the flexible circuit board. Specifically, the portion of the first conductive portion 41 located in the first mounting groove 111 is pressed against the bottom of the first mounting groove 111 by the first ferromagnetic element 21, and the portion of the second conductive portion 42 located in the second mounting groove 121 is pressed against the bottom of the second mounting groove 121 by the second ferromagnetic element 22. The first sensor element 31 and the second sensor element 32 are fixed to corresponding positions on the flexible circuit board by welding, bonding, or other means. Therefore, no additional fixing structure is required to fix the first sensor element 31 and the second sensor element 32. In other embodiments, the first conductive portion 41 and the second conductive portion 42 are in other forms, for example, the first conductive portion 41 and the second conductive portion 42 are wires. In addition, in this embodiment, transparent filling material is injected into the first installation groove 111 and the second installation groove 121, which not only improves the waterproof performance, but also serves to fix the magnetic component 20 and the sensor component 30.

[0057] Furthermore, as shown in FIG5 , to provide protection for the second conductive portion 42, the blood oxygen sensor also includes a connecting portion 13, one end of which is connected to the first clamping portion 11 and the other end to the second clamping portion 12. The connecting portion 13 is made of a flexible material to enable relative movement between the first clamping portion 11 and the second clamping portion 12. Specifically, the connecting portion 13 of this embodiment is provided with a wire channel 131 that connects the first mounting groove 111 on the first clamping portion 11 and the second mounting groove 121 on the second clamping portion 12. The second conductive portion 42 passes through the wire channel 131, so that the second conductive portion 42 is completely enclosed by the connecting portion 13, thereby preventing the second conductive portion 42 from being exposed. On the other hand, the connecting portion 13 also serves to form the first clamping portion 11 and the second clamping portion 12 into an integral structure, thereby limiting the relative position of the first clamping portion 11 and the second clamping portion 12, and facilitating the use of the blood oxygen sensor of this embodiment. The connecting portion 13 of this embodiment primarily connects the first clamping portion 11 and the second clamping portion 12 and wraps around the second conductive portion 42. Although the connecting portion 13 is made of a flexible material, it has limited elasticity and provides no clamping force. Therefore, when magnetically clamped to the nose of the subject, the blood oxygen sensor can be easily held in the open position by hand, without the need for additional tools, making it more convenient to wear.

[0058] In addition, in order to simplify the assembly of the blood oxygen probe and improve the strength of the blood oxygen probe, in this embodiment, the first clamping part 11, the second clamping part 12 and the connecting part 13 are integrally formed. The material of the integral molding can be a soft and elastic material such as silicone, rubber, polyurethane (PU), etc., which can provide good protection for the sensor component 30 and the conductive components, and can achieve a high waterproof level and better waterproof performance.

[0059] Furthermore, to improve wearing comfort, in this embodiment, a first abutting portion 113 is provided on the side of the first clamping portion 11 facing the accommodating space, and the surface of the first abutting portion 113 forms a concave arc surface. Similarly, a second abutting portion 123 is provided on the side of the second clamping portion 12 facing the accommodating space, and the surface of the second abutting portion 123 forms a convex arc surface. Thus, when worn, the first clamping portion 11 is positioned on the outside of the nose wing, and the second clamping portion 12 is positioned on the inside of the nose wing. This allows the first abutting portion 113 to fully fit against the outside of the nose wing, and the second abutting portion 123 to fully fit against the inside of the nose wing, thereby increasing the contact area with the nose wing and improving wearing comfort.

[0060] As can be seen, the physiological parameter probe of this embodiment clamps the sensor assembly 30 to the subject's nose wing through magnetic force. The clamping force is moderate, and the clamping force generated does not vary significantly when used with different nose wing thicknesses, making it more comfortable to wear. Furthermore, unlike the prior art, this embodiment does not provide clamping force through a highly elastic clamping body. Although the connecting portion 13 of this embodiment is made of a flexible material, it has low elasticity and does not provide clamping force. When clamped to the subject's nose wing through magnetic force, the physiological parameter probe can be easily maintained in an open position by hand. The physiological parameter probe of the present invention can be worn without the use of additional tools, making it more convenient to wear.

[0061] Example 2

[0062] Based on the above-mentioned first embodiment, as shown in Figures 8 and 9, this embodiment further includes a first mounting opening 115 provided on the first clamping portion 11 and communicating with the first mounting groove 111. The first mounting opening 115 is used to install the first ferromagnetic element 21 into the first mounting groove 111, and the first sensing element 31 can also be installed into the first mounting groove 111 through the first mounting opening 115. This embodiment further includes a second mounting opening 125 provided on the second clamping portion 12 and communicating with the second mounting groove 121. The second mounting opening 125 is used to install the second ferromagnetic element 22 into the second mounting groove 121, and the second sensing element 32 can also be installed into the second mounting groove 121 through the second mounting opening 125. As can be seen from Figure 9, the first mounting port 115 and the second mounting port 125 are respectively arranged on the end surfaces of the first clamping part 11 and the second clamping part 12. When installing the first ferromagnetic element 21 and the second ferromagnetic element 22, they can be installed from the mounting ports on the end surfaces of the first clamping part 11 and the second clamping part 12, and then the first sensing element 31 and the second sensing element 32 are installed in the first ferromagnetic element 21 and the second ferromagnetic element 22. Finally, the first mounting groove 111 and the second mounting groove 121 are filled with transparent filling material to form a transparent window.

[0063] Compared with the first embodiment, this embodiment installs the first ferromagnetic element 21, the first sensor element 31, the second ferromagnetic element 22, and the second sensor element 32 into the first mounting groove 111 and the second mounting groove 121 respectively through the additionally provided first mounting opening 115 and the second mounting opening 125, rather than installing them through the openings of the first mounting groove 111 and the second mounting groove 121 on one side facing the accommodating space. As a result, the openings of the first mounting groove 111 and the second mounting groove 121 facing the accommodating space can be set smaller, and the transparent window formed by filling the transparent material is smaller, which can reduce the stray light entering from the transparent window and reduce the impact of the stray light on blood oxygen detection.

[0064] Example 3

[0065] On the basis of the above-mentioned embodiment 1, the first ferromagnetic element 21 and the second ferromagnetic element 22 of this embodiment can also be block-shaped. For example, the first ferromagnetic element 21 and the second ferromagnetic element 22 of this embodiment are both block-shaped. In this case, the first sensing element 31 and the second sensing element 32 are respectively arranged on the blocks of the first ferromagnetic element 21 and the second ferromagnetic element 22, and the sensor assembly 30 of this embodiment is stacked on the side of the first ferromagnetic element 21 close to the accommodating space and / or the side of the second ferromagnetic element 22 close to the accommodating space. In specific application, it can be seen from Figures 10 and 11 that the first sensing element 31 of this embodiment is stacked on the side of the first ferromagnetic element 21 close to the accommodating space, and the second sensing element 32 is stacked on the side of the second ferromagnetic element 22 close to the accommodating space, and the first sensing element 31 and the second sensing element 32 are aligned. In this way, under the action of the magnetic field, the first sensing element 31 and the second sensing element 32 can be made closer to the nose wing, thereby improving the accuracy of blood oxygen detection.

[0066] Example 4

[0067] On the basis of the above-mentioned embodiment 1, the first mounting groove 111 of this embodiment includes at least two first ferromagnetic element mounting positions 111b, and the first ferromagnetic elements 21 include at least two, which are respectively arranged in each of the first ferromagnetic element mounting positions 111b. The second mounting groove 121 includes at least two second ferromagnetic element mounting positions 121b, and the second ferromagnetic elements 22 include at least two, which are respectively arranged in each of the second ferromagnetic element mounting positions 121b. That is to say, in this embodiment, more than one ferromagnetic element is arranged on the first clamping portion 11 and the second clamping portion 12. In addition, the first mounting groove 111 of this embodiment also includes a first sensor element mounting position 111a, which is arranged on the side of the first clamping portion 11 facing the accommodating space. The second mounting groove 121 also includes a second sensor element mounting position 121a, which is arranged on the side of the second clamping portion 12 facing the accommodating space. In specific applications, as shown in Figures 12, 13, and 14, in this embodiment, two first ferromagnetic element mounting positions 111b are provided on the first clamping portion 11, and these two first ferromagnetic element mounting positions 111b are provided on both sides of the first sensor element mounting position 111a. Similarly, two second ferromagnetic element mounting positions 121b are provided on the second clamping portion 12, and these two second ferromagnetic element mounting positions 121b are provided on both sides of the second sensor element mounting position 121a, so that each of the first ferromagnetic element mounting positions 111b is provided around the first sensor element mounting position 111a, and each of the second ferromagnetic element mounting positions 121b is provided around the second sensor element mounting position 121a, so that the clamping force on the first clamping portion 11 and the second clamping portion 12 is more uniform and stable, thereby improving the clamping effect.

[0068] Example 5

[0069] Based on the above-mentioned first embodiment, as shown in Figures 15, 16, and 17, in this embodiment, a side cover of the first mounting groove 111 facing the accommodating space is provided with a pre-embedded first transparent window 116, and a side cover of the second mounting groove 121 facing the accommodating space is provided with a pre-embedded second transparent window 126. In this embodiment, the first transparent window 116 and the second transparent window 126 are pre-embedded when the first clamping portion 11 and the second clamping portion 12 are formed. To facilitate the installation of the first sensor element 31 and the second sensor element 32, in this embodiment, the first mounting groove 111 is provided on the side of the first clamping portion 11 facing the accommodating space, and the second mounting groove 121 is provided on the side of the second clamping portion 12 facing the accommodating space. The first sensor element 31 and the second sensor element 32 are respectively disposed in the first mounting groove 111 and the second mounting groove 121. The first mounting opening 115 is disposed on the side of the first mounting groove 111 facing away from the accommodating space, and the second mounting opening 125 is disposed on the side of the second mounting groove 121 facing away from the accommodating space, as shown in Figure 15. Furthermore, the first mounting groove 111 and the first mounting opening 115 are in communication, and the second mounting groove 121 and the second mounting opening 125 are in communication, so that the first sensor element 311, the second sensor element 32, the first ferromagnetic element 21, and the second ferromagnetic element 22 can be installed through the first mounting opening 115 and the second mounting opening 125. After installation is complete, glue is poured into the first mounting opening 115 and the second mounting opening 125 to seal and secure the sensor. Pre-embedded transparent windows are a prior art technology. For example, Chinese Patent Application No. 201310428452.5 discloses a blood oxygen sensor with a pre-embedded transparent window.

[0070] Example 6

[0071] On the basis of the above-mentioned embodiment 1, as shown in Figure 18, the wire outlet 114 of this embodiment can also be set on the connecting part 13, and the wire outlet 114 is connected to the wire channel 131. In this way, the second end of the first conductive part 41 can pass through the wire channel 131 and the wire outlet 114 on the connecting part 13 and be electrically connected to the external vital signs detection equipment. In this embodiment, the direction in which the first conductive part 41 passes out is toward the bottom of the nose, thereby reducing the obstruction of the first conductive part 41 to the subject.

[0072] Example 7

[0073] Based on the above-mentioned first embodiment, as shown in FIG19 , the connecting portion 13 may not be provided between the first clamping portion 11 and the second clamping portion 12 in this embodiment. In this case, the conductive component between the first clamping portion 11 and the second clamping portion 12 is exposed. As can be seen from FIG21 , the wire outlet 114 in this embodiment can be provided on the end face of the first clamping portion 11 away from the second conductive portion 42. In this case, the second end of the first conductive portion 41 can be directly led out from the wire outlet 114 on the end face of the first clamping portion 11 away from the second conductive portion 42. In addition, of course, in other implementations, the wire outlet 114 can also be provided on the second clamping portion 12.

[0074] Example 8

[0075] Based on the above-mentioned first embodiment, as shown in Figure 20 , in this embodiment, the connecting portion 13 may not be provided between the first clamping portion 11 and the second clamping portion 12. In this case, the conductive component between the first clamping portion 11 and the second clamping portion 12 is exposed. In this embodiment, a wire outlet 114 may be provided on the end surface of the first clamping portion 11 near the second conductive portion 42. In this case, the second end of the first conductive portion 41 can be directly led out through the wire outlet 114 on the end surface of the first clamping portion 11 near the second conductive portion 42.

[0076] Example 9

[0077] Based on the above-mentioned embodiment 1, as shown in FIG21 , in this embodiment, a breathing sensor 33 for detecting breathing is provided on the second clamping portion 12. The breathing sensor 33 can be a temperature sensor that detects breathing by detecting changes in the temperature of the breathing airflow, or a pressure sensor that detects breathing by detecting changes in pressure.

[0078] In this embodiment, when the magnetic blood oximeter probe is clamped on the nose wing, the second clamping portion 12 is aligned with the inner side of the nose wing, that is, the second clamping portion 12 is located within the subject's nostril, and the breathing sensor 33 is connected to the space within the nostril, thereby detecting the subject's breathing. Specifically, as can be seen from Figure 21, the side of the second clamping portion 12 away from the accommodating space is provided with a breathing sensor mounting groove 34, and the breathing sensor 33 is disposed within the breathing sensor mounting groove 34. In other embodiments, the breathing sensor mounting groove 34 can also be disposed on the side of the second clamping portion 12. Furthermore, in other embodiments, the first clamping portion 11 can also be used to align with the inner side of the nose wing. Thus, the breathing sensor 33 can also be disposed on the first clamping portion 11, and the corresponding breathing sensor mounting groove 34 is disposed on the side of the first clamping portion 11 away from the accommodating space. Thus, the magnetic blood oximeter probe of this embodiment can be used for blood oxygen detection as well as for breathing detection, providing a wider range of application scenarios.

[0079] Furthermore, in this embodiment, the light emitting element and the light sensing element may be removed so that the magnetic physiological parameter probe of this embodiment is only used for breathing detection.

[0080] In other embodiments, a breathing sensor may be provided on the basis of the second to eighth embodiments, or the light emitting element and the photosensitive element may be further removed, thereby enriching the structure of the present embodiment and making it suitable for more application scenarios.

[0081] In the above embodiments, the magnetic physiological parameter probe of the present invention is used as a nose clip-type blood oxygen probe and a nose clip-type respiration probe as an example. However, the magnetic physiological parameter probe of the present invention is not limited to application as a nose clip probe, but can also be used to clamp on other parts of the body to perform corresponding physiological parameter detection, such as the earlobe, etc., by simply modifying the shape of the first abutting portion 113 and the second abutting portion 123 to match the shape of the other measured parts; the magnetic physiological parameter probe of the present invention is also not limited to application in detecting blood oxygen and respiration. When used to detect other physiological parameters, it is only necessary to replace the light-emitting element, photosensitive element and respiration sensor in the present invention with other types of corresponding sensors.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A magnetic physiological parameter probe, wherein: The magnetic physiological parameter probe comprises: A clamping assembly (10), the clamping assembly (10) comprising a first clamping portion (11) and a second clamping portion (12) arranged opposite to each other, a receiving space for accommodating a measured part formed between the first clamping portion (11) and the second clamping portion (12), and the first clamping portion (11) and the second clamping portion (12) being used to clamp on the measured part; A magnetic attraction component (20), comprising a first ferromagnetic element (21) and a second ferromagnetic element (22) respectively arranged on the first clamping portion (11) and the second clamping portion (12), wherein the first ferromagnetic element (21) and the second ferromagnetic element (22) are used to cause the first clamping portion (11) and the second clamping portion (12) to have a movement tendency to move closer to each other through magnetic force; A sensor assembly (30) is provided on the first clamping portion (11) and / or the second clamping portion (12).

2. The magnetic physiological parameter probe according to claim 1, wherein: The first clamping portion (11) is provided with a first mounting groove (111), and the first ferromagnetic element (21) is arranged in the first mounting groove (111); the second clamping portion (12) is provided with a second mounting groove (121), and the second ferromagnetic element (22) is arranged in the second mounting groove (121).

3. The magnetic physiological parameter probe according to claim 2, wherein: The first mounting groove (111) is provided on a side of the first clamping portion (11) facing the accommodating space, and the second mounting groove (121) is provided on a side of the second clamping portion (12) facing the accommodating space; The first ferromagnetic element (21) and / or the second ferromagnetic element (22) are annular, and the sensor component (30) is arranged inside the annular middle hole of the first ferromagnetic element (21) and / or the second ferromagnetic element (22).

4. The magnetic physiological parameter probe according to claim 2 or 3, wherein: The inner side wall of the first mounting groove (111) is provided with a first fixing buckle (112) for fixing the first ferromagnetic element (21), and the inner side wall of the second mounting groove (121) is provided with a second fixing buckle (122) for fixing the second ferromagnetic element (22).

5. The magnetic physiological parameter probe according to claim 1, wherein: A first mounting groove (111) is provided on a side of the first clamping portion (11) facing the accommodating space, and / or a second mounting groove (121) is provided on a side of the second clamping portion (12) facing the accommodating space; The sensor assembly (30) is arranged in the first installation groove (111) and / or the second installation groove (121), and a transparent filling material covering the sensor assembly (30) is provided in the first installation groove (111) and / or the second installation groove (121) to form a transparent window and fix the sensor assembly (30).

6. The magnetic physiological parameter probe according to claim 2, wherein: It also includes a first installation opening (115) provided on the first clamping portion (11) and communicating with the first installation slot (111), wherein the first installation opening (115) is used to install the first ferromagnetic element (21) into the first installation slot (111); It also includes a second installation opening (125) provided on the second clamping portion (12) and communicating with the second installation slot (121), wherein the second installation opening (125) is used to install the second ferromagnetic element (22) into the second installation slot (121).

7. The magnetic physiological parameter probe according to claim 6, wherein: The first mounting opening (115) is provided on a side of the first mounting groove (111) away from the accommodating space, and the second mounting opening (125) is provided on a side of the second mounting groove (121) away from the accommodating space.

8. The magnetic physiological parameter probe according to claim 6, wherein: The first mounting opening (115) is provided on the end surface of the first clamping portion (11), and the second mounting opening (125) is provided on the end surface of the second clamping portion (12).

9. The magnetic physiological parameter probe according to claim 7 or 8, wherein: The first mounting groove (111) is provided on a side of the first clamping portion (11) facing the accommodating space, and the second mounting groove (121) is provided on a side of the second clamping portion (12) facing the accommodating space; The sensor assembly (30) comprises a first sensing element (31) and a second sensing element (32), wherein the first sensing element (31) and the second sensing element (32) are respectively arranged in the first mounting groove (111) and the second mounting groove (121); A side cover of the first installation slot (111) facing the accommodating space is provided with a pre-buried first transparent window (116), and a side cover of the second installation slot (121) facing the accommodating space is provided with a pre-buried second transparent window (126).

10. The magnetic physiological parameter probe according to claim 7 or 8, wherein: The first mounting groove (111) is provided on a side of the first clamping portion (11) facing the accommodating space, and the second mounting groove (121) is provided on a side of the second clamping portion (12) facing the accommodating space; The sensor assembly (30) comprises a first sensing element (31) and a second sensing element (32), wherein the first sensing element (31) and the second sensing element (32) are respectively arranged in the first mounting groove (111) and the second mounting groove (121); Transparent filling material covering the sensor assembly (30) is provided in the first installation groove (111) and the second installation groove (121) to form a transparent window and fix the sensor assembly (30).

11. The magnetic physiological parameter probe according to claim 2, wherein: The sensor component (30) is stacked on a side of the first ferromagnetic element (21) close to the accommodating space and / or a side of the second ferromagnetic element (22) close to the accommodating space.

12. The magnetic physiological parameter probe according to claim 2, wherein: The first installation slot (111) includes at least two first ferromagnetic element installation positions (111b), and the first ferromagnetic elements (21) include at least two, which are respectively arranged in each of the first ferromagnetic element installation positions (111b); The second installation slot (121) includes at least two second ferromagnetic element installation positions (121b), and the second ferromagnetic elements (22) include at least two, which are respectively arranged in each of the second ferromagnetic element installation positions (121b).

13. The magnetic physiological parameter probe according to claim 12, wherein: The first installation groove (111) further includes a first sensor element installation position (111a), and the first sensor element installation position (111a) is arranged on a side of the first clamping portion (11) facing the accommodating space; The second mounting groove (121) further includes a second sensor element mounting position (121a), and the second sensor element mounting position (121a) is arranged on a side of the second clamping portion (12) facing the accommodating space; The sensor assembly (30) comprises a first sensor element (31) and a second sensor element (32), wherein the first sensor element (31) and the second sensor element (32) are respectively arranged in the first sensor element installation position (111a) and the second sensor element installation position (121a); Each of the first ferromagnetic element installation positions (111b) is arranged around the first sensor element installation position (111a), and each of the second ferromagnetic element installation positions (121b) is arranged around the second sensor element installation position (121a).

14. The magnetic physiological parameter probe according to claim 1, wherein: The sensor assembly (30) comprises a first sensing element (31) and a second sensing element (32), wherein the first sensing element (31) and the second sensing element (32) are respectively arranged on the first clamping portion (11) and the second clamping portion (12); Also included is a conductive component, the conductive component including a first conductive portion (41) and a second conductive portion (42); The first end of the first conductive portion (41) penetrates the first clamping portion (11) and is electrically connected to the first sensing element (31), and the second end of the first conductive portion (41) is used to be electrically connected to a vital sign detection device; The first end of the second conductive portion (42) penetrates the second clamping portion (12) and is electrically connected to the second sensing element (32), and the second end of the second conductive portion (42) penetrates the first clamping portion (11) and is electrically connected to the first end of the first conductive portion (41).

15. The magnetic physiological parameter probe according to claim 14, wherein: It also includes a connecting portion (13), one end of which is connected to the first clamping portion (11), and the other end of which is connected to the second clamping portion (12).

16. The magnetic physiological parameter probe according to claim 15, wherein: The connecting portion (13) is provided with a wire channel (131) communicating with the first clamping portion (11) and the second clamping portion (12), and the second conductive portion (42) passes through the wire channel (131).

17. The magnetic physiological parameter probe according to claim 15, wherein: The first clamping portion (11), the second clamping portion (12) and the connecting portion (13) are an integrally formed structure.

18. The magnetic physiological parameter probe according to claim 16, wherein: The connecting portion (13) is provided with a wire outlet (114) connected to the wire channel (131); the first end of the first conductive portion (41) passes through the wire outlet (114) and the wire channel (131) and enters the first clamping portion (11) to be electrically connected to the first sensing element (31).

19. The magnetic physiological parameter probe according to claim 14, wherein: A wire outlet (114) is provided on the first clamping portion (11), and the first end of the first conductive portion (41) passes through the wire outlet (114) and enters the first clamping portion (11) to be electrically connected to the first sensing element (31).

20. The magnetic physiological parameter probe according to claim 1 or 2, wherein: The measured part is the nose wing; The sensor assembly (30) further includes a breathing sensor (33) connected to the nostrils of the subject.

21. The magnetic physiological parameter probe according to claim 20, wherein: The first clamping portion (11) is used to abut against the outer side of the nose wing, and the second clamping portion (12) is used to abut against the inner side of the nose wing; A breathing sensor installation groove (34) is provided on one side of the second clamping portion (12) away from the accommodating space, and the breathing sensor (33) is arranged in the breathing sensor installation groove (34).

22. The magnetic physiological parameter probe according to claim 1 or 2, wherein: A first abutting portion (113) is provided on a side of the first clamping portion (11) facing the accommodating space, and a surface of the first abutting portion (113) forms a concave arc surface; a second abutting portion (123) is provided on a side of the second clamping portion (12) facing the accommodating space, and a surface of the second abutting portion (123) forms a convex arc surface.

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