Pulse oxyhemoglobin saturation sensor with current-limiting protection device

Abstract

The utility model relates to a pulse oxyhemoglobin saturation sensor with a current-limiting protection device. The pulse oxyhemoglobin saturation sensor solves the problem that in the prior art, fluctuation of power supply current of a pulse oxyhemoglobin saturation sensor easily affects detection data, and consequently the accuracy of the detection data is reduced. The device comprises a connecting plug, one end of the connecting plug is connected with a monitor for data transmission and power supply transmission, the other end of the connecting plug is connected with a data detection mechanism through a transmission cable, the transmission cable passes through an insulation sleeve structure, and a current limiting protection mechanism used for adjusting current and controlling data transmission is arranged on the circumferential inner side of the insulation sleeve structure. The utility model has the advantages that power supply lines can be quickly switched according to the magnitude of current, the fluctuation adjustment of the current is realized, the accuracy of detection data is ensured, a data transmission line can be replaced when the power supply lines are switched, and the continuity of data transmission is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of medical tools, in particular to a pulse oxygen saturation sensor with a current limiting protection device. Background Art

[0002] Disposable pulse oximetry sensors noninvasively measure blood oxygen saturation or arterial hemoglobin saturation, while also detecting arterial pulsation, thereby calculating and reporting a patient's heart rate. Existing disposable pulse oximetry sensors require alignment of the LED chip and PD chip when wrapped around the user's finger for effectiveness. However, these sensors lack an adjustment mechanism for the two chips, making them inadequate for different users. Furthermore, current fluctuations in the current received by these sensors can easily affect the measurement data, reducing accuracy.

[0003] In order to solve the shortcomings of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a disposable pulse oximetry sensor [CN202220255571.X], which includes a plug and a wiring connected to the wiring port of the plug, one side of the plug is provided with double-sided adhesive, and one side of the double-sided adhesive inner paper is connected to a stretching assembly, the end of the wiring away from the plug is connected to the adjustment stretching assembly with a probe part, the probe part includes an LED chip and a PD chip for detection, and the outer periphery of the connection between the wiring and the LED chip and the PD chip is provided with a rubber sealing tube for protection, the middle part of the wiring is provided with a winding assembly for winding, the outer periphery of the wiring close to the plug end is provided with a protective tube, and the inner periphery of the protective tube is provided with a protective assembly.

[0004] The above solution has to some extent solved the problem in the existing technology that the pulse oximetry sensor is difficult to adjust the chip position and cannot be well adapted to be worn by different people. However, this solution still has many shortcomings. For example, current fluctuations can easily affect the detection data, resulting in reduced accuracy of the detection data. Summary of the Invention

[0005] The purpose of the utility model is to provide a pulse oxygen saturation sensor with a current limiting protection device in order to solve the above problems.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a pulse oximetry sensor with a current limiting protection device, comprising a connecting plug, one end of which is connected to a monitor for data transmission and power transmission, and the other end of the connecting plug is connected to a data detection mechanism via a transmission cable, an insulating sleeve structure is passed through the transmission cable, and a current limiting protection mechanism for adjusting current and controlling data transmission is provided on the inner circumference of the insulating sleeve structure.

[0007] In the above-mentioned pulse oximetry sensor with current limiting protection device, the insulating sleeve structure includes an insulating sleeve, the axis of the insulating sleeve is provided with an insulating channel for the transmission cable to pass through, and the inner wall of the insulating sleeve is provided with a plurality of line channels.

[0008] In the above-mentioned pulse oximetry sensor with a current limiting protection device, the outer circumference of the insulating sleeve is wrapped with an insulating and heat-insulating layer.

[0009] In the above-mentioned pulse oximetry sensor with current limiting protection device, a first electrical connection socket is provided between the connecting plug and the transmission cable, a data connection socket is provided on the data detection mechanism, and the data connection socket is connected to the transmission cable through a second electrical connection socket.

[0010] In the above-mentioned pulse oximetry sensor with a current limiting protection device, the current limiting protection mechanism includes a power supply detection circuit board, one end of which is connected to the transmission cable, and the other end of which is provided with an on-off regulator embedded in the outer wall of the insulating sleeve structure. The on-off regulator is provided with a display screen for displaying the power supply current, and a plurality of on-off switches are provided on the lower side of the display screen. One side of the on-off regulator is provided with a power supply interface for connecting to an external power supply device.

[0011] In the above-mentioned pulse oximetry sensor with current limiting protection device, the first electrical connection socket and the transmission cable are connected through the first current transmission branch line, and the first current transmission branch line is connected to the power supply detection circuit board and controlled by the first on-off switch.

[0012] In the above-mentioned pulse oximetry sensor with current limiting protection device, the second electrical connection socket and the transmission cable are connected through the second current transmission branch line, and the first current transmission branch line is connected to the power supply detection circuit board and controlled by the second on-off switch.

[0013] In the above-mentioned pulse oximetry sensor with current limiting protection device, the first on-off switch and the second on-off switch are respectively connected to the on-off switch connection on the above-mentioned on-off regulator and automatically perform on-off control through the current detection data of the on-off regulator.

[0014] In the above-mentioned pulse oximetry sensor with a current limiting protection device, the first electrical connection socket and the data connection socket are connected via a data transmission branch line, and the data transmission branch line is provided with a data transmission on / off switch.

[0015] In the above-mentioned pulse oximetry sensor with a current limiting protection device, the data detection mechanism includes a light-emitting diode and a photodetector, and the light-emitting diode and the photodetector are arranged on the fixed adhesive patch and are arranged in opposite directions.

[0016] Compared with the existing technology, the advantages of the present invention are: it can quickly switch the power supply line according to the current size, realize the current fluctuation adjustment, thereby ensuring the accuracy of the detection data, and can replace the data transmission line when switching the power supply line to ensure the continuity of data transmission, and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection of the current limiting protection mechanism in the present utility model;

[0019] Figure 3 This is a cross-sectional view of the insulating sleeve structure in the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the on-off regulator in the utility model;

[0021] In the figure: connecting plug 1, transmission cable 11, first electrical connection socket 12, data detection mechanism 2, light-emitting diode 21, photodetector 22, fixing adhesive 23, data connection socket 24, second electrical connection socket 25, insulating sleeve structure 3, insulating sleeve 31, insulating channel 32, insulating heat insulation layer 33, current limiting protection mechanism 4, power supply detection circuit board 41, on-off regulator 42, display screen 43, on-off switch 44, power supply interface 45, first current transmission branch line 46, first on-off switch 461, second current transmission branch line 47, second on-off switch 471, data transmission branch line 48, data transmission on-off switch 481. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] like Figure 1-4As shown, a pulse oximetry sensor with a current limiting protection device includes a connecting plug 1, one end of which is connected to a monitor for data transmission and power transmission, and the other end of the connecting plug 1 is connected to a data detection mechanism 2 through a transmission cable 11, and an insulating sleeve structure 3 is passed through the transmission cable 11, and a current limiting protection mechanism 4 for adjusting current and controlling data transmission is provided on the inner side of the insulating sleeve structure 3.

[0024] The insulating sleeve structure 3 includes an insulating sleeve 31 . An insulating channel 32 for the transmission cable 11 to pass through is provided at the axis of the insulating sleeve 31 . A plurality of line channels are provided on the inner wall of the insulating sleeve 31 .

[0025] The provision of the insulating sleeve structure 3 can prevent electric leakage and play a role in contact protection.

[0026] Obviously, the insulating sleeve 31 is wrapped with an insulating and heat-insulating layer 33 on the circumferential outer side.

[0027] Furthermore, a first electrical connection socket 12 is provided between the connecting plug 1 and the transmission cable 11 , and a data connection socket 24 is provided on the data detection mechanism 2 , and the data connection socket 24 is connected to the transmission cable 11 through a second electrical connection socket 25 .

[0028] Furthermore, the current limiting protection mechanism 4 includes a power supply detection circuit board 41, one end of the power supply detection circuit board 41 is connected to the transmission cable 11, and the other end of the power supply detection circuit board 41 is provided with an on-off regulator 42 embedded in the outer wall of the insulating sleeve structure 3, and the on-off regulator 42 is provided with a display screen 43 for displaying the power supply current, and a plurality of on-off switches 44 are provided on the lower side of the display screen 43, and a power supply interface 45 for connecting to an external power supply device is provided on one side of the on-off regulator 42.

[0029] The power supply detection circuit board 41 is used to detect the current size of the transmission cable 11 and display the current fluctuation curve through the display screen 43. The on-off switch 44 is used to switch the first current transmission branch line 46 or the second current transmission branch line 47 on and off, and the power supply interface 45 is used to access the backup power supply.

[0030] Specifically, the first electrical connection socket 12 is connected to the transmission cable 11 via a first current transmission branch line 46 , and the first current transmission branch line 46 is connected to the power supply detection circuit board 41 and controlled by a first on / off switch 461 .

[0031] In addition, the second electrical connection socket 25 is connected to the transmission cable 11 via a second current transmission branch line 47 , and the first current transmission branch line 46 is connected to the power supply detection circuit board 41 and controlled by a second on / off switch 471 .

[0032] During daily use, power supply and detection data transmission are carried out through the transmission cable 11. When the transmission cable 11 fluctuates and becomes unstable, the first current transmission branch 46 or the second current transmission branch 47 is switched according to the size of the supply current.

[0033] More specifically, the first on-off switch 461 and the second on-off switch 471 are respectively connected to the on-off switch 44 on the on-off regulator 42 and are automatically on-off controlled by the current detection data of the on-off regulator 42 .

[0034] The first on-off switch 461 and the second on-off switch 471 are automatically controlled by the current size in daily operation, and can also be manually switched and controlled by the on-off switch 44.

[0035] In detail, the first electrical connection socket 12 and the data connection socket 24 are connected via a data transmission branch line 48 , and the data transmission branch line 48 is provided with a data transmission on / off switch 481 .

[0036] When the circuit is switched, the data transmission on / off switch 481 is turned on, and the data transmission branch line 48 is switched to continue data transmission.

[0037] Preferably, the data detection mechanism 2 includes a light emitting diode 21 and a photodetector 22 , and the light emitting diode 21 and the photodetector 22 are disposed on the fixing adhesive 23 and are arranged opposite to each other.

[0038] To sum up, the principle of this embodiment is that during daily use, power supply and detection data transmission are carried out through the transmission cable 11. When the transmission cable 11 fluctuates and is unstable, the first current transmission branch 46 or the second current transmission branch 47 is switched according to the supply current size, and when the circuit is switched, the data transmission on-off switch 481 is turned on, and the data transmission branch 48 is switched to continue data transmission, thereby avoiding the impact of current fluctuations on the detection data and ensuring the continuity of data transmission.

[0039] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0040] Although this document frequently uses terms such as connecting plug 1, transmission cable 11, first electrical connection socket 12, data detection mechanism 2, light-emitting diode 21, photodetector 22, fixing adhesive 23, data connection socket 24, second electrical connection socket 25, insulating sleeve structure 3, insulating sleeve 31, insulating channel 32, insulating heat insulation layer 33, current limiting protection mechanism 4, power supply detection circuit board 41, on / off regulator 42, display screen 43, on / off switch 44, power supply interface 45, first current transmission branch line 46, first on / off switch 461, second current transmission branch line 47, second on / off switch 471, data transmission branch line 48, data transmission on / off switch 481, etc., the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A pulse oximetry sensor with a current limiting protection device, comprising a connecting plug (1), one end of the connecting plug (1) being connected to a monitor for data transmission and power transmission, and the other end of the connecting plug (1) being connected to a data detection mechanism (2) via a transmission cable (11), characterized in that: An insulating sleeve structure (3) passes through the transmission cable (11), and a current limiting protection mechanism (4) for regulating current and controlling data transmission is provided on the inner circumferential side of the insulating sleeve structure (3).

2. A pulse oximetry sensor with a current limiting protection device according to claim 1, characterized in that: The insulating sleeve structure (3) comprises an insulating sleeve (31), the axis of the insulating sleeve (31) is provided with an insulating channel (32) for the transmission cable (11) to pass through, and the inner wall of the insulating sleeve (31) is provided with a plurality of line channels.

3. A pulse oximetry sensor with a current limiting protection device according to claim 2, characterized in that: The insulating sleeve (31) is wrapped with an insulating and heat-insulating layer (33) on the circumferential outer side.

4. A pulse oximetry sensor with a current limiting protection device according to claim 1, characterized in that: A first electrical connection socket (12) is provided between the connecting plug (1) and the transmission cable (11), a data connection socket (24) is provided on the data detection mechanism (2), and the data connection socket (24) is connected to the transmission cable (11) via a second electrical connection socket (25).

5. A pulse oximetry sensor with a current limiting protection device according to claim 4, characterized in that: The current limiting protection mechanism (4) includes a power supply detection circuit board (41), one end of the power supply detection circuit board (41) is connected to the transmission cable (11), and the other end of the power supply detection circuit board (41) is provided with an on-off regulator (42) embedded in the outer wall of the insulating sleeve structure (3), the on-off regulator (42) is provided with a display screen (43) for displaying the power supply current, and a plurality of on-off switches (44) are provided on the lower side of the display screen (43), and a power supply interface (45) for connecting to an external power supply device is provided on one side of the on-off regulator (42).

6. A pulse oximetry sensor with a current limiting protection device according to claim 5, characterized in that: The first electrical connection socket (12) and the transmission cable (11) are connected via a first current transmission branch line (46), and the first current transmission branch line (46) is connected to the power supply detection circuit board (41) and controlled by a first on / off switch (461).

7. A pulse oximetry sensor with a current limiting protection device according to claim 6, characterized in that: The second electrical connection socket (25) is connected to the transmission cable (11) via a second current transmission branch line (47), and the first current transmission branch line (46) is connected to the power supply detection circuit board (41) and controlled by a second on / off switch (471).

8. The pulse oximetry sensor with a current limiting protection device according to claim 7, characterized in that: The first on / off switch (461) and the second on / off switch (471) are respectively connected to the on / off switch (44) on the on / off regulator (42) and automatically perform on / off control based on current detection data of the on / off regulator (42).

9. The pulse oximetry sensor with a current limiting protection device according to claim 7, characterized in that: The first electrical connection socket (12) and the data connection socket (24) are connected via a data transmission branch line (48), and the data transmission branch line (48) is provided with a data transmission on / off switch (481).

10. The pulse oximetry sensor with a current limiting protection device according to claim 1, characterized in that: The data detection mechanism (2) comprises a light-emitting diode (21) and a photodetector (22), wherein the light-emitting diode (21) and the photodetector (22) are arranged on the fixed adhesive tape (23) and are arranged opposite to each other.

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