Respiratory status indicating device and method of use thereof

Abstract

The application provides a respiratory state indicating device and a use method, and relates to the technical field of medical instruments. When the device is used, the detection structure is fixed on the part to be detected of the user through the limiting structure. At this time, the first abutting part and the second abutting part are located between the limiting structure and the patient. The limiting structure presses the second abutting part. With the respiration of the patient and the action of the elastic reset structure, the first abutting part reciprocally slides relative to the second abutting part. During the sliding process, the position of the conductive contact part relative to the resistance structure changes, so that the effective value of the resistance connected to the circuit changes. After the resistance value in the circuit changes, the current in the circuit changes. The respiratory amplitude indicator can give a puncture prompt according to the current in the circuit, so as to guide the patient to adjust the chest and abdomen through respiration to the best puncture shape.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a respiratory status indicator and its method of use. Background Technology

[0002] Minimally invasive surgery is currently widely used in the treatment of liver tumors, such as biopsy, ablation, and particle implantation. Most of these procedures involve percutaneous puncture with a needle to reach the lesion for sampling, ablation, or particle implantation.

[0003] In existing technologies, the timing of puncture relies entirely on the surgeon's experience. However, during percutaneous puncture, the patient's breathing causes the chest and abdominal area to expand and contract, which leads to changes in the puncture marker position and makes it impossible to guarantee the accuracy of the puncture. Changes in the puncture position often require multiple adjustments to the puncture angle under image guidance, resulting in increased operation time and inaccurate puncture. Summary of the Invention

[0004] The purpose of this invention is to provide a respiratory status indicator device and method to alleviate the technical problems that easily occur when doctors rely on experience to judge the timing of puncture, such as inaccurate puncture location and long puncture time.

[0005] In a first aspect, the present invention provides a respiratory state indicator device, comprising: a respiratory amplitude indicator, a limiting structure, and a detection structure;

[0006] The detection structure includes: a first abutting part, a second abutting part, an elastic reset structure, a resistive structure, and a conductive contact part. The first abutting part abuts against the part to be detected, and the second abutting part is slidably disposed on the first abutting part. A limiting structure is disposed on the side of the second abutting part facing away from the patient. The second abutting part abuts against the limiting structure.

[0007] An elastic reset structure is disposed between the first abutment and the second abutment; one of the first abutment and the second abutment is provided with a resistive structure, and the other is provided with a conductive contact; the resistive structure, the conductive contact, and the respiratory amplitude indicator are connected in the same circuit; the conductive contact slides in contact with the resistive structure, and the effective resistance of the resistive structure connected in the circuit changes during the sliding of the first abutment relative to the second abutment; the respiratory amplitude indicator is used to detect the current in the circuit and provide a puncture prompt based on the detected current value.

[0008] Furthermore, the first abutment includes: a base and a guide post, the back of the base abutting against the placement position on the patient; the guide post is vertically connected to the front of the base;

[0009] The second contact part includes a slip ring, which is sleeved on the guide post.

[0010] Furthermore, the resistor structure includes a resistance wire wound along the length of the guide post on the outer wall of the guide post, with one end of the resistance wire connected to the circuit and the other end not connected to the circuit.

[0011] The conductive contact is fixed on the slip ring. One end of the conductive contact is in contact with the resistance wire, and the other end is connected to the breathing amplitude indicator through the first cable.

[0012] Furthermore, at least two guide portions are provided in the circumferential direction of the slip ring, and the guide portions abut against the resistance wire. The conductive contact portion and at least two guide portions provided in the circumferential direction are used to prevent the slip ring from tilting when it slides.

[0013] Furthermore, the elastic reset structure includes a spring located between the slip ring and the base.

[0014] Furthermore, the detection structure also includes an elastic outer cover, which covers the outside of the second abutment and the elastic reset structure and is connected to the first abutment; the elastic outer cover is provided with a first clearance hole for the clearance guide post.

[0015] Furthermore, the limiting structure includes a strap with a second clearance hole for the clearance guide post.

[0016] Furthermore, the breathing status indicator also includes a support for supporting the breathing amplitude indicator.

[0017] Furthermore, the support includes a fixed connection part and an adjustable part, the respiratory amplitude indicator is connected to the adjustable part, and the adjustable part is movably connected to the fixed connection part.

[0018] Furthermore, the respiratory amplitude indicator includes indicator lights that reflect the patient's breathing status;

[0019] And / or, the respiratory amplitude indicator also includes a speaker for broadcasting the patient's breathing status.

[0020] Secondly, the present invention provides a method for using the above-mentioned respiratory state indicator device, comprising: fixing the detection structure to the detection site by a limiting structure; when the human body exhales air normally, the abdomen is in a flat state, at which time the abdomen does not generate outward tension, and the detection structure is not subjected to pressure; when the patient gradually inhales air, the tension generated in the abdomen gradually increases, under the action of tension, the limiting structure will squeeze the second abutment part, the second abutment part slides relative to the first abutment part, during the sliding process, the contact point of the conductive contact part and the resistive structure is different, causing the length of the resistance wire connected to the circuit to change, thereby changing the resistance in the circuit, and the current in the circuit will also change, and the respiratory amplitude indicator detects the current value in the circuit; during the patient's inhalation or exhalation, when the detected current value is within the preset range Ia-Ib, the current processor in the respiratory amplitude indicator controls the indicator light on the respiratory amplitude indicator to light up and / or the speaker on the respiratory amplitude indicator to emit a voice prompt, when the detected current value is less than Ia or greater than Ib, the current processor controls the indicator light to turn off and / or controls the speaker to not emit sound.

[0021] The present invention has at least the following advantages or beneficial effects:

[0022] When indicating respiratory status, the patient's breathing causes changes in the abdomen. The limiting mechanism transmits these changes to the detection structure, causing a change in the resistance of the circuit connected to the detection structure. Consequently, the current in the circuit changes. The respiratory amplitude indicator detects the current in the circuit. When the current value is within a preset range, an indicator light or speaker indicates that the respiratory status is at the optimal time for puncture. This invention, through the cooperation of the limiting mechanism, the detection mechanism, and the respiratory amplitude indicator, can detect and indicate the patient's respiratory status, making it convenient for users to find the right time for puncture. Furthermore, the detection structure of this invention uses Ohm's law to quantify the respiratory amplitude. The detection structure is simple, has good stability, and provides accurate and timely detection results. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 A schematic diagram of a respiratory status indicator device provided in an embodiment of the present invention;

[0025] Figure 2 An exploded view of the detection structure of the respiratory status indicator device provided in an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of the resistor structure and power supply connection of the respiratory status indicator device provided in an embodiment of the present invention;

[0027] Figure 4 A cross-sectional view of the detection structure of the respiratory status indicator device provided in an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of the front of the respiratory amplitude indicator of the respiratory state indicator device provided in an embodiment of the present invention;

[0029] Figure 6 A schematic diagram of the back of the respiratory amplitude indicator of the respiratory state indicator device provided in an embodiment of the present invention;

[0030] Figure 7 A schematic diagram of the internal structure of the respiratory amplitude indicator of the respiratory state indicator device provided in an embodiment of the present invention;

[0031] Figure 8 Circuit diagram of a breathing state indicator device provided in an embodiment of the present invention;

[0032] Figure 9 A schematic diagram illustrating the interaction between the detection structure and the limiting structure of the respiratory state indicator device provided in an embodiment of the present invention;

[0033] Figure 10 A schematic diagram of the second contact portion of the respiratory status indicator device provided in an embodiment of the present invention;

[0034] Figure 11 A cross-sectional view of the second contact portion of the breathing state indicator device provided in an embodiment of the present invention;

[0035] Figure 12 A cross-sectional view of the compression detection structure of the limiting structure of the breathing state indicator device provided in an embodiment of the present invention;

[0036] Figure 13 This is a schematic diagram of the support for the breathing status indicator device provided in an embodiment of the present invention.

[0037] Icons: 1 - Detection structure; 11 - Base; 12 - Resistor structure; 13 - Slip ring; 133 - Conductive contact; 134 - Guide; 14 - Elastic cover; 15 - Power supply; 16 - Baffle; 17 - Guide post; 18 - Spring;

[0038] 2 – Strap; 21 – Second clearance hole;

[0039] 3 – Respiratory amplitude indicator; 31 – Current processor; 32 – Indicator light; 33 – Speaker;

[0040] 4 – Bracket; 41 – Fixed clamp; 42 – Movable clamp; 43 – Fixed rod; 44 – Adjusting nut; 45 – Universal hose;

[0041] 5 - Protective cover;

[0042] 61 – First cable; 62 – Second cable. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0045] like Figure 1 As shown, the respiratory status indicator device provided by the present invention includes: a respiratory amplitude indicator 3, a limiting structure, and a detection structure 1. For example... Figure 2 As shown, the detection structure 1 includes a first abutting part, a second abutting part, and an elastic reset structure. The first abutting part may have a base 11, which abuts against the part to be detected. A guide post 17 is provided on the first abutting part, and a slip ring 13 is provided on the second abutting part. The slip ring 13 is sleeved on the guide post 17, allowing the second abutting part to slide against the first abutting part, with the sliding direction perpendicular to the placement position.

[0046] The elastic reset structure is disposed between the first abutment and the second abutment, and the elastic reset structure can be a spring 18.

[0047] The limiting structure includes a strap 2, which secures the detection structure 1 to the patient. The strap 2 presses against the side of the second abutment that faces away from the patient, thereby preventing the second abutment from moving away from the patient.

[0048] The detection structure 1 also includes a resistor structure 12 and a conductive contact portion 133. Of the first abutment portion and the second abutment portion, one is provided with the resistor structure 12, and the other with the conductive contact portion 133. In this embodiment, the resistor structure 12 is disposed on the guide post 17 of the first abutment portion, and the conductive contact portion 133 is disposed on the slip ring 13 of the second abutment portion. In other feasible embodiments, the resistor structure 12 can also be disposed on the slip ring 13 of the second abutment portion, and the conductive contact portion 133 can be disposed on the guide post 17 of the first abutment portion. The resistor structure 12 and the conductive contact portion 133 can also generate relative movement in the vertical direction.

[0049] like Figure 8 As shown, the resistor structure 12, the conductive contact 133, and the breathing amplitude indicator 3 are connected in the same circuit. The circuit also includes a power supply 15 to provide voltage. The positive terminal of the power supply 15 is connected to one end of the resistor structure 12, the resistor structure 12 is slidably connected to one end of the conductive contact 133, the other end of the conductive contact 133 is connected to the breathing amplitude indicator 3 via a first cable 61, and the breathing amplitude indicator 3 is connected to the negative terminal of the power supply 15 via a second cable 62, thus forming a circuit.

[0050] The conductive contact 133 makes sliding contact with the resistive structure 12. During the sliding process, the effective resistance of the resistive structure 12 connected to the circuit changes. In other words, the resistive structure 12 and the conductive contact 133 can form a function similar to a sliding resistor. The patient's breathing movements directly change the resistance value connected to the circuit. After the resistance changes, the current in the circuit will change. The breathing amplitude indicator 3 can detect the current in the circuit and control the indicator light 32, voice broadcaster and other prompting devices to provide feedback to the doctor on the patient's breathing status based on the detected current value. Thus, the doctor can perform the puncture surgery based on the prompt.

[0051] like Figure 9 , 12As shown, when using the device, the detection structure is first placed on the area to be detected, and then the detection structure is fixed to the patient by the strap 2. At this time, the first abutment and the second abutment are located between the limiting structure and the patient. The strap 2 abuts against the upper surface of the second abutment. During the patient's breathing, the strap applies downward pressure to the second abutment. The second abutment will tend to move downward under the pressure, causing the second abutment to slide relative to the first abutment. Therefore, with the patient's breathing and the action of the elastic reset structure, the first abutment slides back and forth relative to the second abutment. During the sliding process, the position of the conductive contact 133 relative to the resistive structure 12 changes, thereby changing the effective value of the resistance connected to the circuit. After the resistance value in the circuit changes, the current in the circuit changes. The respiratory amplitude indicator 3 can detect the current in the circuit and control the prompting device to issue a prompting message based on the detected current value. The doctor performs the puncture operation according to the prompting message, which facilitates the doctor to guide the patient to adjust the chest and abdomen to the optimal puncture shape through breathing.

[0052] Specifically, such as Figure 3 and Figure 4 As shown, the first abutment part may include: a base 11 and a guide post 17, the back of the base 11 abuts against the placement position on the patient; the guide post 17 is vertically connected to the front of the base 11; the second abutment part includes: a slip ring 13, the slip ring 13 is sleeved on the guide post 17.

[0053] The base 11 can be disc-shaped, with its back side abutting against the patient. The guide post 17 can be cylindrical, connected to the front side of the base 11, and the base 11 and guide post 17 can be integrally formed. The resistor structure 12 can include a resistance wire wound along the length of the guide post 17 on its outer wall, and the resistance wire is connected to the positive terminal of the power supply 15 through a wire.

[0054] like Figure 11 As shown, the conductive contact 133 is connected to the slip ring 13. One end of the conductive contact 133 is in contact with the resistance wire, and the other end is connected to the breathing amplitude indicator 3 through the first cable 61. The hole in the middle of the slip ring 13 matches the guide post 17. The slip ring 13 is sleeved on the guide post 17 and slides along the length direction (vertical) of the guide post 17, thereby changing the effective resistance value in the circuit.

[0055] like Figure 8 As shown, the current flow in the circuit is: positive terminal of the power supply → resistance wire → conductive contact → breathing amplitude indicator → negative terminal of the power supply. Based on the inherent properties of resistance, in a circuit loop, the resistance is positively correlated with the length of the resistance wire through which the current flows; that is, the larger the length L, the larger the resistance R, and the smaller the length L, the smaller the resistance R. However, according to Ohm's law, when U remains constant, R and I are negatively correlated.

[0056] like Figure 10 As shown, in order to ensure that the slip ring 13 and the guide post 17 always slide coaxially, at least two guide portions 134 are provided on the slip ring 13 along the circumference. The guide portions 134 abut against the resistance wire. The ends of the conductive contact portion 133 and the guide portion 134 are on the same circle and surround the outside of the guide post 17 to form a limit.

[0057] The elastic reset structure includes a spring 18 located between a slip ring 13 and a base 11. In this embodiment, the upper end of the spring 18 is connected to the slip ring 13, and the lower end is connected to the base 11. During inhalation, the patient's abdomen gradually protrudes, generating outward tension. The strap 2 compresses the slip ring 13, causing it to slide on the guide post 17, thereby compressing the spring 18 between the first and second abutment portions. Conversely, when the patient exhales, the spring 18 pushes the slip ring 13 and the base 11 apart, ensuring that the first abutment portion abuts against the patient, while the second abutment portion abuts against the strap 2.

[0058] like Figure 12 As shown, the strap 2 can be pressed against the second abutment portion. The strap 2 has a second clearance hole 21 to avoid interference with the guide post 17. In other possible solutions, the limiting structure can be set to stop only the second abutment portion without covering the area of ​​the guide post 17, thus eliminating the need for the second clearance hole 21, for example, by using two thinner straps to press against opposite sides of the second abutment portion.

[0059] like Figure 4 As shown, the detection structure 1 also includes an elastic outer cover 14 for protection. The elastic outer cover 14 covers the outside of the second abutment and the elastic reset structure, and is connected to the first abutment. The elastic outer cover 14 covers the second abutment, and the edge of the lower opening of the elastic outer cover 14 can connect to the base 11 of the first abutment, or completely wrap the base 11. The upper surface of the elastic outer cover 14 is provided with a first clearance hole for the clearance guide post 17. The strap 2 presses on the elastic outer cover 14. When the first abutment and the second abutment move relative to each other, the elastic outer cover 14 also moves in a telescoping motion. In this embodiment, because the elastic outer cover 14 is provided above the second abutment, the strap 2 presses on the elastic outer cover 14.

[0060] like Figure 3 As shown, an opening can be made on the back of the base 11, extending into the guide post 17. The power supply 15 can then be placed inside this opening. After the power supply 15 is installed on the outer wall, the opening of the base 11 is sealed with a baffle 16. In other feasible solutions, the power supply 15 can also be externally mounted, i.e., located outside the first and second abutment portions.

[0061] like Figure 13As shown, the breathing status indicator also includes a bracket 4, which is used to support the breathing amplitude indicator 3.

[0062] Specifically, the support 4 includes a fixed connection part and an adjustable part. The respiratory amplitude indicator 3 is connected to the adjustable part, and the adjustable part is movably connected to the fixed connection part, thereby changing the position of the respiratory amplitude indicator 3.

[0063] The fixed connection part can be connected to the hospital bed by clamping. Specifically, it can include a fixed rod 43, a fixed clamp 41, a movable clamp 42, and an adjusting nut 44. The fixed clamp 41 is fixedly connected to the fixed rod 43. The movable clamp 42 is slidably sleeved on the fixed rod 43 and located above the fixed clamp 41. The adjusting nut 44 is located above the movable clamp 42 and is threadedly connected to the fixed rod 43. Rotating the adjusting nut 44 can bring the movable clamp 42 closer to the fixed clamp 41.

[0064] The adjustable part and the fixed rod 43 can be connected by a pivot to adjust the pitch angle of the adjustable part. Simultaneously, the adjustable part may include a universal hose 45, which can be bent to achieve universal adjustment.

[0065] like Figure 5 - Figure 7 As shown, the respiratory amplitude indicator 3 includes a mounting plate, a current processor 31, and a prompting device. The current processor 31 is mounted on the mounting plate and can measure the current in the circuit, storing preset current values ​​Ia and Ib. The prompting device includes an indicator light 32 and / or a speaker 33. The current processor 31 controls the indicator light 32 and the speaker 33 based on the detected current value. The indicator light 32 is located on both sides of the mounting plate, allowing patients and doctors to simultaneously obtain the same current information. Its main function is to provide feedback on the current state of the chest and abdomen based on the current magnitude, and it also provides voice announcements.

[0066] Specifically, when the patient inhales a small amount of air, if the monitored current value is less than the budgeted value Ia, the abdominal distension is too small and not suitable for puncture, and the current processor 31 controls the indicator light 32 to turn off; when the current value is within the preset range Ia-Ib, the current processor 31 controls the indicator light 32 to light up and / or controls the speaker 33 to emit a voice prompt similar to "Patient, please hold your breath, suitable for puncture", at which point the amount of air inhaled reaches the optimal puncture state, the doctor reminds the patient to hold their breath, and then the puncture is performed; if the patient continues to inhale air, and the detected current value is greater than Ib, the abdominal distension is too high and not suitable for puncture, and the current processor 31 controls the indicator light 32 to turn off. When the patient inhales the maximum amount of air, they begin to exhale, and the current processor 31 begins to repeat the above actions. During a complete inhalation and exhalation cycle, the indicator light 32 will illuminate once during the inhalation phase and once during the exhalation phase, thus providing two optimal puncture opportunities. Specifically, when the current detected by the current processor 31 is within the range of Ia-Ib, the patient's chest cavity is in the optimal bulging position. This invention quantifies the patient's respiratory status, making it more intuitive and facilitating doctors to find the optimal puncture time based on the lesion location, thereby improving the accuracy and timeliness of the puncture surgery.

[0067] It should be noted that the method for determining Ia and Ib is as follows: Before the device is put into use, the doctor determines the appropriate breathing amplitude for puncture, the current processor 31 reads the current threshold corresponding to the appropriate breathing amplitude for puncture, and stores the two endpoints of the current threshold in the current processor 31.

[0068] It should be noted that the base 11, guide part 134, slip ring 13, elastic cover 14, and baffle 16 are all non-metallic and non-conductive.

[0069] The conductive contact 133 on the slip ring 13 is connected to the breathing amplitude indicator 3 via the first cable 61, while the power supply 15 located in the guide post 17 is connected to the breathing amplitude indicator 3 via the second cable 62. The first cable 61 and the second cable 62 are wrapped with a protective cover 5 to protect the first cable 61 and the second cable 62.

[0070] The method of using the device provided in this embodiment is as follows:

[0071] The detection structure 1 is fixed to the area to be detected by the strap 2. When a person exhales air normally, the abdomen is in a flat state, and there is no outward tension in the abdomen. Therefore, the detection structure is not under pressure, and the slip ring 13 and spring 18 are also in a state of zero pressure. As the person gradually inhales air, the tension in the abdomen gradually increases. Under the action of tension, the strap 2 will compress the slip ring 13, and the spring 18 between the slip ring 13 and the base 11 will also be gradually compressed under the pressure, and its height will decrease accordingly. When the conductive contact 133 descends, its contact point differs from that of the resistive structure 12, causing a change in the length of the resistance wire in the circuit. Consequently, the resistance in the circuit changes, and the current in the circuit also changes. The current processor 31 detects the current value in the circuit. When the patient inhales a small amount of air, if the detected current value is less than the budgeted value Ia, the abdominal bulge is too small and not suitable for puncture, and the current processor 31 controls the indicator light 32 to turn off. When the current value is within the preset range Ia-Ib, the current processor 31 controls the indicator light 32 to light up and / or controls the speaker 33 to emit a voice prompt similar to "Patient, please hold your breath, suitable for puncture." At this time, the amount of air inhaled reaches the optimal puncture state, and the doctor reminds the patient to hold their breath before proceeding with the puncture. If the patient continues to inhale air, and the detected current value is greater than Ib, the abdominal bulge is too high, and it is also not suitable for puncture, so the current processor 31 controls the indicator light 32 to turn off. When the patient inhales the maximum amount of air, they begin to exhale. When the current value is again within the range of Ia-Ib, the current processor 31 controls the indicator light 32 to illuminate and / or controls the speaker 33 to emit a voice prompt such as "Patient, please hold your breath, suitable for puncture." At this time, the amount of air inhaled has reached the optimal puncture state. The doctor reminds the patient to hold their breath and then performs the puncture. When the current value is less than Ia or greater than Ib, the current processor 31 controls the indicator light 32 to turn off and / or controls the speaker 33 to remain silent.

[0072] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0073] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0074] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0075] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A respiratory status indicator device, characterized in that, include: Respiratory amplitude indicator (3), limiting structure and detection structure (1); The detection structure (1) includes: a first abutting part, a second abutting part, an elastic reset structure, a resistive structure (12), and a conductive contact part (133). The first abutting part abuts against the part to be detected, and the second abutting part is slidably disposed on the first abutting part. The limiting structure is disposed on the side of the second abutting part facing away from the patient. The second abutting part abuts against the limiting structure. The elastic reset structure is disposed between the first abutment and the second abutment; one of the first abutment and the second abutment is provided with a resistive structure (12), and the other is provided with a conductive contact (133); the resistive structure (12), the conductive contact (133) and the respiratory amplitude indicator (3) are connected in the same circuit; the conductive contact (133) slides in contact with the resistive structure (12), and the effective resistance of the resistive structure (12) connected to the circuit changes during the sliding process of the first abutment relative to the second abutment; the respiratory amplitude indicator (3) is used to detect the current in the circuit and give a puncture prompt based on the detected current value.

2. The respiratory status indicator device according to claim 1, characterized in that: The first abutting part includes: a base (11) and a guide post (17), the back of the base (11) abuts against the placement position on the patient; the guide post (17) is vertically connected to the front of the base (11); The second abutment part includes a slip ring (13), which is sleeved on the guide post (17).

3. The respiratory status indicator device according to claim 2, characterized in that: The resistor structure (12) includes a resistance wire wound along the length of the guide post (17) on the outer wall of the guide post (17), one end of the resistance wire is connected to the circuit, and the other end is not connected to the circuit; The conductive contact (133) is fixed on the slip ring (13). One end of the conductive contact (133) is in contact with the resistance wire, and the other end is connected to the breathing amplitude indicator (3) through the first cable (61).

4. The respiratory status indicator device according to claim 3, characterized in that: The slip ring (13) is provided with at least two guide portions (134) in the circumferential direction. The guide portions (134) abut against the resistance wire. The conductive contact portion (133) and the at least two guide portions (134) provided in the circumferential direction are used to prevent the slip ring (13) from tilting when it slides.

5. The respiratory status indicator device according to claim 2, characterized in that: The elastic reset structure includes a spring (18) located between the slip ring (13) and the base (11).

6. The respiratory status indicator device according to claim 2, characterized in that: The detection structure (1) further includes an elastic outer cover (14), which covers the outside of the second abutment and the elastic reset structure and is connected to the first abutment; the elastic outer cover (14) is provided with a first clearance hole for the clearance guide post (17).

7. The respiratory status indicator device according to any one of claims 1-6, characterized in that: The limiting structure includes a strap (2) having a second clearance hole (21) for a clearance guide post (17).

8. The respiratory status indicator device according to any one of claims 1-6, characterized in that: The breathing status indicator also includes a bracket (4) for supporting the breathing amplitude indicator (3).

9. The respiratory status indicator device according to claim 8, characterized in that: The bracket (4) includes a fixed connection part and an adjustable part. The breathing amplitude indicator (3) is connected to the adjustable part, and the adjustable part is movably connected to the fixed connection part.

10. The respiratory status indicator device according to any one of claims 1-6, characterized in that: The respiratory amplitude indicator (3) includes an indicator light (32) which is used to reflect the patient's breathing status; And / or, the respiratory amplitude indicator (3) also includes a speaker (33) for broadcasting the patient’s respiratory status.

11. A method of using the respiratory status indicator device as described in any one of claims 1-10, characterized in that, The detection structure (1) is fixed to the detection site by the limiting structure; when the human body exhales air normally, the abdomen is in a flat state, and at this time the abdomen does not generate outward tension, and the detection structure (1) will not be subjected to pressure; when the patient gradually inhales air, the tension generated in the abdomen gradually increases. Under the action of tension, the limiting structure will squeeze the second abutment part, and the second abutment part slides relative to the first abutment part. During the sliding process, the contact point of the conductive contact part (133) and the resistor structure (12) is different, which causes the length of the resistance wire connected to the circuit to change, and then the resistance in the circuit changes. The current will also change. The respiratory amplitude indicator (3) detects the current value in the circuit. During the patient's inhalation or exhalation, when the detected current value is within the preset range Ia-Ib, the current processor (31) in the respiratory amplitude indicator (3) controls the indicator light (32) on the respiratory amplitude indicator (3) to light up and / or the speaker (33) on the respiratory amplitude indicator (3) to emit a voice prompt. When the detected current value is less than Ia or greater than Ib, the current processor (31) controls the indicator light (32) to turn off and / or controls the speaker (33) to not make a sound.

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