A wearable respiratory neuroelectrical stimulation therapy device

Abstract

This invention relates to the field of medical device technology, specifically to a wearable respiratory nerve electrical stimulation therapy device. The device includes a hinged neckband body, an adjusting arm, a telescopic adjustment mechanism, a pitch adjustment mechanism, a rotating housing, upper and lower electrode assemblies, a clamping airbag, and a main unit. The neckband body is hinged in the middle and equipped with an elastic reset element to provide clamping pre-tightening force. The adjusting arm is slidably mounted on a guide arm of the main body. The telescopic adjustment uses a bevel gear reversing worm gear rack transmission and has a reverse self-locking characteristic. The pitch adjustment seat achieves unidirectional angle self-locking through a ratchet and pawl mechanism. The rotating housing has a built-in lockable wire storage structure connecting the lower electrode pad, and its inner side is equipped with a universal ball joint and a floating spring-supported air-cushioned upper electrode. The main unit integrates an air pump and an electrical stimulation module. This invention can achieve electrode pad positioning and multi-dimensional adaptive fit, effectively improving the device's wearing convenience and dynamic stability.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a wearable respiratory nerve electrical stimulation therapy device. Background Technology

[0002] Respiratory dysfunction is a common core complication of many diseases, including sleep-disordered breathing, chronic obstructive pulmonary disease, central nervous system injury, and critical illness. The diaphragm, as the body's primary inspiratory muscle, is responsible for approximately 60%-80% of ventilation. Abnormal phrenic nerve regulation or decreased respiratory muscle function directly leads to adverse outcomes such as insufficient ventilation, impaired sputum clearance, and ventilator dependence, significantly increasing patient disability and mortality rates. Respiratory nerve electrical stimulation technology, through targeted stimulation of respiratory-related nerves such as the phrenic nerve and hypoglossal nerve, passively activates respiratory muscle contraction and regulates respiratory rhythm. With its non-invasive and non-pharmacological advantages, it has become an important clinical intervention for sleep apnea treatment, pulmonary rehabilitation, and weaning critically ill patients off ventilators. With the increasing demand for chronic disease management and home-based rehabilitation, miniaturized and wearable respiratory nerve electrical stimulation devices have become an important research direction in this field.

[0003] Currently, respiratory nerve stimulation devices are mainly divided into two technical routes: implantable and surface-based. Implantable nerve stimulation systems involve surgically wrapping electrodes around the target nerve trunk, offering high stimulation precision and stable efficacy. However, they require general anesthesia for implantation, posing risks of surgical complications such as incision infection, nerve damage, and electrode displacement. Furthermore, the equipment is expensive, replacement and maintenance require a second surgery, and the indications are strictly screened, making it difficult to widely apply to patients with mild symptoms, patients in the recovery period, and elderly people with underlying diseases.

[0004] Surface electrical stimulation devices are currently the mainstream approach for non-invasive clinical intervention. Among them, Chinese invention patent application CN120346449A discloses an external phrenic nerve electrical stimulator that synchronizes breathing. This approach uses surface electrodes to act on the bilateral phrenic nerve regions of the human body, and is equipped with a respiratory signal detection unit to collect respiratory cycle signals in real time. After the control unit determines the inspiratory phase, it synchronously triggers the output of electrical stimulation pulses to induce rhythmic contractions of the diaphragm.

[0005] However, the aforementioned devices still have certain drawbacks: 1. The device is a desktop unit, requiring medical staff to manually attach and position the stimulation electrodes. There is a lack of standardized placement guidelines, and electrode positioning accuracy highly depends on the operator's experience. Patients cannot wear the devices independently, making it unsuitable for home-based self-treatment and long-term continuous use. 2. Dynamic fit and fixation reliability are insufficient. Skin adhesion is achieved solely through electrode adhesive. During dynamic activities such as head turning, rolling over, and walking, the electrodes are prone to relative slippage or even detachment from the skin. This reduces stimulation effectiveness and may also affect treatment outcomes due to misalignment or detachment. Summary of the Invention

[0006] This invention provides a wearable respiratory nerve electrical stimulation therapy device to solve the technical problems of poor reliability and inconvenience of use of existing phrenic nerve electrical stimulators for home use.

[0007] To address the above problems, the present invention provides a wearable respiratory nerve electrical stimulation therapy device using the following technical solution: A wearable respiratory nerve electrical stimulation therapy device includes a neckband body, a telescopic adjustment mechanism, a pitch adjustment mechanism, a rotating housing, an upper electrode assembly, a lower electrode plate, an airbag assembly, and a main unit. The neckband body includes a left hinge arm and a right hinge arm that are hinged to each other, with an elastic reset member between them to provide an inward clamping preload. The outer ends of the left and right hinge arms extend into guide sliding arms, and the left and right adjustment arms are slidably mounted on the guide sliding arms. The telescopic adjustment mechanism is slidably mounted on the left and right adjustment arms to adjust their telescopic positions. The pitch adjustment mechanism... The mechanism includes a pitch adjustment seat hinged to the distal ends of the left and right adjustment arms, and a one-way self-locking structure for adjusting the pitch angle of the pitch adjustment seat; the rotating housing is hinged to the pitch adjustment seat, and has a wire storage assembly inside, with the lower electrode plate wound around the wire storage assembly and led outward by a retractable wire; the inner side of the rotating housing is provided with an upper electrode assembly, which includes a floating support structure and an upper electrode plate disposed thereon; the neckband body and the skin-contact side of the adjustment arm are provided with clamping airbags; the main unit includes an air pump module connected to the clamping airbags and an electrical stimulation module electrically connected to the upper and lower electrode plates.

[0008] Its beneficial effects are as follows: The device uses a hinged neckband as the wearing carrier, relying on an elastic reset component to provide inward clamping pre-tightening force, allowing the device to be stably worn on the neck, forming a stable positioning reference. The extension length of the adjustment arm can be adjusted via a telescopic adjustment mechanism to accommodate users with different neck circumferences. The one-way self-locking structure of the pitch adjustment mechanism can adjust and fix the pitch angle of the electrodes to match the physiological contours of the neck side. The rotating shell and floating support upper electrode assembly can further adapt to the skin's curvature, ensuring effective contact between the upper electrode and the skin. The lower electrode, equipped with a retractable wire storage structure, can adjust the lead-out length according to body shape, adapting to the placement needs of chest wall electrodes. Inflating the clamping airbag enhances wearing stability. The main unit integrates an air pump and an electrical stimulation module, simultaneously achieving clamping fixation and electrical stimulation treatment, helping to improve the convenience of home use and the stability of electrode positioning during treatment.

[0009] Furthermore, the left hinge arm and the right hinge arm are hinged together by a hinge shaft, and the hinge ends of the two are provided with limiting arc plates to limit the minimum opening angle; the elastic reset member is a reset tension spring, and its two ends are respectively connected to the tension spring seats on the inner side of the two hinge arms; the guide slide arm is arc-shaped, and its outer arc surface is provided with an arc-shaped toothed rack extending along the arc length.

[0010] Furthermore, the telescopic adjustment mechanism includes an arc-shaped rack on the guide slide arm, a worm gear rotatably mounted in the left and right adjustment arms and meshing with the arc-shaped rack, and an adjustment knob exposed on the adjustment arm; the adjustment knob is connected to the worm gear through an orthogonally arranged bevel gear pair, and the worm gear and the arc-shaped rack form a reverse self-locking transmission pair, used to adjust and lock the telescopic position of the adjustment arm.

[0011] Its beneficial effects are as follows: by using an orthogonal bevel gear pair for transmission reversal, the vertical rotation of the top adjustment knob can be converted into the horizontal rotation of the worm gear, so that the adjustment knob is located at the top of the adjustment arm, which conforms to the operating habits when wearing it and improves the convenience of adjustment; the reverse self-locking transmission pair formed by the worm gear and the arc rack can automatically lock the extension position after adjustment, without the need for additional locking operation, and can withstand the reverse force during wearing, preventing the adjustment arm from retracting on its own and ensuring the stability of the state after the circumference adjustment.

[0012] Furthermore, the one-way self-locking structure is a ratchet and pawl mechanism, including a ratchet fixedly connected to the pitch adjustment seat on the same axis, a pawl hinged to the left and right adjustment arms, and an elastic element; the elastic element is used to drive the pawl to normally press against the ratchet, and the pawl is connected to a reset lever exposed on the adjustment arm. Moving the reset lever can drive the pawl to disengage from the ratchet to release the angle lock.

[0013] Its beneficial effects are as follows: By employing a one-way self-locking structure consisting of a ratchet and pawl, the angle can be continuously adjusted by pulling the pitch adjustment seat upwards. After releasing, the pawl automatically engages with the ratchet teeth to lock, and the operation can be completed with one hand. The exposed reset lever can drive the pawl to disengage from the ratchet, quickly releasing the angle lock to achieve pitch reset. The elastic element continuously provides clamping force to the pawl, ensuring the reliability of the locking state. During treatment, it can resist the airbag's thrust and wearing movement, maintaining a stable pitch angle and preventing the electrode from deviating from the stimulation target.

[0014] Furthermore, the wire storage assembly includes a winding shaft and a coil spring, with the wire wound around the winding shaft and the coil spring providing a winding return force; the wire storage assembly also integrates a wire locking structure to lock the wire pull-out length.

[0015] Its beneficial effects are as follows: by adopting a storage method that combines a winding spool with a coil spring, excess lower electrode wires can be automatically wound up, avoiding exposed and messy tangles, while allowing the wires to be pulled out and adjusted in length as needed; the matching wire locking structure can fix the position after the wires are pulled out to the target length, preventing the lower electrode from shifting due to external force pulling the wires during treatment. It can not only adapt to users of different heights and chest circumferences to adjust the position of the chest wall electrodes, but also ensure the stability of the electrode placement during treatment.

[0016] Furthermore, the wire locking structure includes a locking block, a push spring, and an unlocking button. Under normal conditions, the push spring drives the locking block to radially press the wire to achieve locking. When the unlocking button is pressed, the two work together through the guide ramp to drive the locking block to retract and release the lock. The unlocking button is fitted with a reset spring.

[0017] Its advantages are as follows: Under normal conditions, the push spring drives the locking block to press the wire, and the wire is locked by friction, resulting in a simple structure and reliable locking. When the unlock button is pressed, the axial pressing force is converted into the radial retraction force of the locking block through the cooperation of the guide slope, making the unlocking action effortless and convenient. A reset spring is set outside the unlock button, which can drive the button to automatically rebound and reset after the pressing force is removed, adapting to the needs of high-frequency wire winding and unwinding.

[0018] Furthermore, the floating support structure includes a universal ball joint seat, a universal ball, an electrode seat, and a plurality of floating springs evenly distributed circumferentially. The electrode seat is rotatably assembled to the universal ball joint seat via the universal ball, and the floating springs support the electrode seat between the rotating housing and the electrode seat. A flexible air cushion is provided on the skin-contact side of the electrode seat, and the upper electrode plate is disposed on the surface of the flexible air cushion.

[0019] Its beneficial effects are as follows: the universal ball joint structure allows the electrode holder to deflect at small angles in multiple directions, which can adaptively match the curvature differences of the side of the neck and avoid poor contact caused by the edge of the electrode pad lifting; multiple floating springs evenly distributed in the circumference provide elastic support for the electrode holder, which can provide return force after deflection and absorb the micro-movement impact during wearing, reducing the feeling of hard pressure; the flexible air cushion set on the skin side of the electrode holder can further fill the gap between the skin and the electrode, so that the upper electrode pad forms a uniform surface contact with the skin, improving the stimulation effect and wearing comfort.

[0020] Furthermore, a circuit board is fixedly installed inside the rotating housing, and a through wiring channel is provided inside the universal ball and the universal ball hinge seat. The upper electrode plate is electrically connected to the circuit board through the wiring channel.

[0021] Furthermore, the clamping airbag includes a rear airbag located on the skin-contact side of the neckband body and a side airbag located on the skin-contact side of the adjustment arm, and the skin-contact surface of each airbag is evenly distributed with anti-slip textured patterns.

[0022] Its beneficial effects are as follows: By dividing the clamping airbag into a rear airbag and side airbags, which are arranged to correspond to the back and sides of the neck respectively, the airbags can form a flexible clamping effect on the neck at multiple points after inflation. This disperses the wearing pressure while improving the axial and circumferential stability of the device and reducing the risk of slippage. The skin-contact surface of the airbag is equipped with anti-slip textured patterns, which can increase the friction between the airbag and the skin, further suppressing the relative displacement during head movements and improving the electrode positioning accuracy under dynamic conditions.

[0023] Furthermore, the host is a portable desktop structure with an electrode interface and a tracheal interface on its panel. The electrical stimulation module is used to output electrical stimulation pulses that are synchronized with the human respiratory rhythm. Attached Figure Description

[0024] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the invention are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein: Figure 1 This is a schematic diagram of the structure of a wearable respiratory nerve electrical stimulation therapy device provided by the present invention; Figure 2 Schematic diagram of the main body of the neckband Figure 1 ; Figure 3 Schematic diagram of the main body of the neckband Figure 2 ; Figure 4 This is a schematic diagram of the outer shell structure; Figure 5 This is a schematic diagram of the telescopic adjustment mechanism; Figure 6 Schematic diagram of the pitch adjustment mechanism Figure 1 ; Figure 7 Schematic diagram of the pitch adjustment mechanism Figure 2 ; Figure 8 This is a schematic diagram of the pitch adjustment seat. Figure 9 This is a schematic diagram of the internal structure of the rotating housing; Figure 10 This is a schematic diagram of the internal structure of the cable storage bin; Figure 11 This is a schematic diagram of the spring housing. Figure 12 A schematic diagram of the wire locking structure; Figure 13 This is a schematic diagram of the upper electrode assembly; Figure 14 Schematic diagram of the host computer structure Figure 1; Figure 15 Schematic diagram of the host computer structure Figure 2 .

[0025] Explanation of reference numerals in the attached figures: 1. Main unit; 2. Power cord interface; 3. Power button; 4. Electrode interface; 5. Tracheal interface; 10. Neckband main body; 11. Left hinge arm; 12. Right hinge arm; 13. Hinge shaft; 14. Limiting arc plate; 15. Tension spring seat; 16. Reset tension spring; 17. Guide slide arm; 18. Arc rack; 19. Hinge shell; 20. Adjusting arm; 23. Outer arm shell; 24. Inner arm shell; 25. Snap-fit ​​rail; 26. Receiving slot; 27. Adjustment chamber; 28. Clearance slot; 31. Adjustment knob; 32. First bevel gear; 33. Second bevel gear; 34. Worm gear; 41. Pitch adjustment seat; 42. Pitch pivot; 43. Ratchet structure; 44. First torsion spring; 45. Support shaft; 46. Pawl; 47. Second torsion spring; 4 8. Wing plate; 49. Reset lever; 50. Rotating housing; 51. Outer housing; 52. Inner housing; 53. Rotating shaft; 54. Circuit board; 55. Charging interface; 56. Unlock button; 57. Limiting boss; 58. Reset spring; 61. Cable storage compartment; 611. Base; 612. Top cover; 62. Winding shaft; 63. Spring receiving compartment; 65. Wire; 66. Limiting component; 67. Locking block; 671. Guide rod; 68. Push spring; 69. Locking groove; 691. Guide groove; 71. Universal ball seat; 72. Universal ball; 73. Electrode seat; 74. Inner spring seat; 75. Outer spring seat; 76. Floating spring; 77. Air cushion; 78. Upper electrode plate; 81. Rear airbag; 82. Side airbag; 83. Lower electrode plate. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] The principles and spirit of the present invention will be explained in detail below with reference to several representative embodiments.

[0028] Embodiment 1 of a wearable respiratory nerve electrical stimulation therapy device provided by the present invention: like Figures 1 to 15As shown, the wearable respiratory nerve electrical stimulation therapy device consists of an arc-shaped neckband body 10, symmetrically arranged adjustment arms 20, a telescopic adjustment mechanism, a pitch adjustment mechanism, a rotating shell 50, an upper electrode assembly, a retractable lower electrode assembly, an airbag assembly, and an external main unit 1. The left and right sides are symmetrically arranged. The following description uses the left side structure as an example, and the right side structure can be referred to accordingly.

[0029] The neck strap body 10 serves as the core support frame of the device. It adopts a split arc-shaped structure with a central hinge, including a left hinge arm 11 and a right hinge arm 12 that are hinged to each other. The two are rotatably connected by a centrally located hinge shaft 13. The hinge ends each have mutually abutting arc-shaped limiting plates 14, which limit the minimum opening angle of the left and right hinge arms 12. The inner arc surfaces of the two hinge arms are respectively fixed with tension spring seats 15. The two ends of the return tension spring 16 are correspondingly hooked onto the tension spring seats 15 on both sides. Under normal conditions, the two hinge arms are pulled inward to provide a continuous inward clamping pre-tightening force for the device, allowing the device to be stably attached to the neck without the need for additional straps for fixation. The left end of the left hinge arm 11 and the right end of the right hinge arm 12 each extend outward with an arc-shaped guide slide arm 17. The outer arc surface of the guide slide arm 17 is integrally formed with an arc-shaped rack 18 extending along the arc length direction, which serves as a driven transmission component for telescopic adjustment. The inner sides of the left hinge arm 11 and the right hinge arm 12 are respectively fitted with a left hinge shell 19 and a right hinge shell 19 through a snap fastener, which are used to cover the internal hinge structure and also provide an installation reference for the rear airbag 81.

[0030] The adjusting arm 20 is slidably fitted onto the outside of the guide arm 17. It has an arc-shaped hollow shell structure and includes a left adjusting arm 20 located to the left of the left hinge arm 11 and a right adjusting arm 20 located to the right of the right hinge arm 12. Both the left and right adjusting arms 20 are formed by the snap-fitting of an outer arm shell 23 and an inner arm shell 24. The inner arc surface of the outer arm shell 23 has two parallel L-shaped arc-shaped locking tracks 25, forming a receiving groove 26 between the two tracks. The outer edge of the inner arm shell 24 has an arc-shaped outer edge that matches the locking track 25. After snap-fitting, an arc-shaped sliding channel is formed between the outer arm shell 23 and the inner arm shell 24 for the guide arm 17 to pass through, allowing the adjusting arm 20 to slide smoothly back and forth along the guide arm 17 in an arc direction. The outer arc surface of the outer arm shell 23 is provided with a protruding adjustment chamber 27, in which a worm gear 34 is rotatably mounted. The outer arm shell 23 is provided with a clearance groove 28 corresponding to the position of the adjustment chamber 27 to avoid the worm gear 34. The worm gear 34 is arranged along the tangent direction of the arc surface of the guide slide arm 17 and meshes with the arc-shaped rack 18. One end of the worm gear 34 is coaxially fixed to a second bevel gear 33. A vertically arranged adjustment knob 31 is rotatably mounted on the top of the adjustment chamber 27. The inner end of the knob is coaxially fixed to a first bevel gear 32. The two bevel gears mesh orthogonally to form a reversing transmission pair. When the top adjustment knob 31 is rotated, the vertical rotation is reversed to the horizontal rotation of the worm gear 34 through the bevel gear pair, thereby driving the adjustment arm 20 to slide along the arc-shaped rack 18 to achieve stepless adjustment of the wearing circumference. At the same time, relying on the reverse self-locking characteristic of the transmission between the worm gear 34 and the arc-shaped rack 18, the extension position can be automatically locked after adjustment, which can withstand the reverse opening force during wearing without the need for additional locking operation.

[0031] The distal end of the adjusting arm 20 is equipped with a pitch adjustment mechanism for adjusting the pitch angle of the electrode to match the physiological curve of the neck side. This mechanism includes a pitch adjustment seat 41, a pitch pivot 42, a ratchet and pawl self-locking unit 46, and a reset lever 49. Semi-circular wing plates 48 are symmetrically arranged on both sides of the pitch adjustment seat 41, and a coaxial ratchet structure 43 is fixed between the two wing plates 48. The pitch pivot 42 passes through the central hole of the wing plates 48 and the ratchet. The end of the adjusting arm 20 is a semi-circular hinged end, coaxially sleeved on the pitch pivot 42, forming a hinged engagement with the pitch adjustment seat 41. Two first torsion springs 44 are sleeved on the pitch pivot 42, with their ends connected to the adjusting arm 20 and the ratchet structure 43 respectively, driving the pitch adjustment seat 41 to maintain a downward tilting tendency under normal conditions. At the end of the adjusting arm 20, a support shaft 45 parallel to the pitch axis 42 is fixed. A pawl 46 is rotatably sleeved on the support shaft 45. Second torsion springs 47 are sleeved on both sides of the support shaft 45, driving the pawl 46 to normally press against the ratchet tooth surface. When the pitch adjusting seat 41 is pulled upward, the ratchet tooth surface slides past the pawl 46 in sequence, realizing continuous unidirectional adjustment of the angle. After being released, the pawl 46 engages with the ratchet tooth groove, automatically locking the current pitch angle, which can resist the airbag's thrust and wearing sway. A reset lever 49 is connected to the side of the pawl 46. The lever protrudes from the arc-shaped hole on the side wall of the adjusting arm 20. Moving the lever inward will cause the pawl 46 to disengage from the ratchet, releasing the angle lock, and the pitch adjusting seat 41 will automatically reset under the action of the first torsion spring 44.

[0032] A rotating housing 50 is hinged to the side of the pitch adjustment base 41 away from the neckband body 10 via a pivot 53. The rotating housing 50 is formed by the outer shell 51 and the inner shell 52 fastening together, creating a closed cavity inside. It can rotate around the pivot 53 to further adapt to the torsional contour of the neck side. A circuit board 54 is fixedly installed inside the cavity for the distribution and transmission of electrical signals. The inner shell 52 has a clearance groove corresponding to the interface of the circuit board 54. The charging interface 55 on the side wall of the adjustment arm 20 is electrically connected to the circuit board 54 for charging the device. The rear side of the rotating housing 50 is hinged to the pitch adjustment base 41, and an integrated electrode and wire 65 storage structure is installed inside.

[0033] The skin-contact side of the rotating housing 50 is equipped with an adaptive floating upper electrode assembly, including a universal ball seat 71, a universal ball 72, an electrode seat 73, a floating spring 76, an air cushion 77, and an upper electrode plate 78. The universal ball seat 71 is fixed to the middle of the inner housing 52, and the universal ball 72 is rotatably mounted inside the universal ball seat 71, enabling multi-directional small-angle deflection. The electrode seat 73 is fixedly connected to the inside of the universal ball 72 and rotates synchronously with the universal ball 72. Four outer spring seats 75 are evenly arranged circumferentially on the outer side of the universal ball seat 71, and four inner spring seats 74 are correspondingly arranged on the back of the electrode seat 73. A floating spring 76 supports each pair of spring seats, forming a circumferential multi-point elastic support structure, which provides the electrode seat 73 with a restoring force after deflection and can also buffer and absorb shock along the axial direction, absorbing the micro-motion impact during wear. A flexible air cushion 77 is fixed to the skin-contact side of the electrode holder 73. The upper electrode plate 78 is detachably installed on the surface of the air cushion 77. After the air cushion 77 is inflated, it can further flexibly conform to the skin. With the deflection of the universal ball 72, it adaptively fills the gaps in the skin, so that the upper electrode plate 78 forms a complete surface contact with the neck skin, improving the uniformity of stimulation and wearing comfort. A through-channel is opened inside the universal ball 72 and the universal ball holder 71. The connecting wire 65 of the upper electrode plate 78 is connected to the internal circuit board 54 through this channel, avoiding the wire 65 from being exposed and pulled.

[0034] The rotating housing 50 also houses a wire 65 storage assembly for storing and locking the connecting wire 65 of the lower electrode plate 83. This assembly mainly includes a wire storage compartment 61, a winding shaft 62, a coil spring, and a wire 65 locking structure. The wire storage compartment 61 is a disc-shaped closed structure, formed by the base 611 and the upper cover 612 fastened together. The winding shaft 62 is rotated through the center, and the wire 65 of the lower electrode plate 83 is spirally wound on the winding shaft 62. Its input end is connected to the circuit board 54 through a hidden channel (not shown) inside the winding shaft 62, and its output end is led out through the wire outlet of the wire storage compartment 61, with the end connected to the lower electrode plate 83. A limiting member 66 is provided at the wire outlet position of the wire 65 to limit the maximum winding stroke and prevent the wire 65 from being completely retracted into the housing. In this embodiment, the limiting member 66 is a limiting block fixedly sleeved on the wire 65. A coil spring receiving chamber 63 is provided on one side of the wire storage chamber 61. The coil spring is coiled around the outside of the winding shaft 62, and its two ends are fixed to the winding shaft 62 and the inner wall of the chamber, respectively, to provide a restoring elastic force for winding.

[0035] The cable storage compartment 61 base 611 has a cable 65 locking structure on its outlet side, including a locking groove 69, a guide groove 691, a locking block 67, a push spring 68, an unlocking button 56, and a return spring 58. The locking groove 69 is formed on the side wall of the cable storage compartment 61 base 611, and its horizontal opening is connected to the cable outlet of the cable storage compartment 61. The locking block 67 is slidably fitted in the locking groove 69, and its sliding direction is staggered with the extension direction of the cable outlet. The end face of the locking block 67 facing the cable 65 is arc-shaped to avoid damaging the outer sheath of the cable 65 during locking. A guide groove 691 is provided on the side of the locking groove 69 away from the outlet. A guide rod 671 extends integrally from the locking block 67 corresponding to the guide groove 691. The guide rod 671 slides through the guide groove 691. A push spring 68 is sleeved on the outside of the guide rod 671. Its two ends abut against the locking block 67 and the base 611 of the cable storage compartment 61, respectively. Under normal conditions, it drives the locking block 67 to move towards the outlet side and locks the wire 65 by squeezing and clamping it to achieve the pulling length locking. The side of the locking block 67 is provided with a first guide slope that slopes from the inside out. The unlocking button 56 is a rod-shaped structure, with its inner end extending into the base 611 of the wire storage compartment 61 and having a second guide slope that matches the first guide slope. The outer end of the unlocking button 56 is exposed on the side wall of the rotating housing 50, and a limiting boss 57 is provided in its middle to abut against the inner wall of the rotating housing 50 to prevent the button from coming out. The reset spring 58 is sleeved on the inner end of the unlocking button 56 to drive the unlocking button 56 to automatically spring back and reset after being pressed.

[0036] When in use, pull the wire 65 of the lower electrode plate 83 outward. The winding shaft 62 rotates with the wire 65 and tightens the coil spring. As the wire 65 slides outward along the outlet, it pushes the locking block 67 to compress the push spring 68 and slightly retracts. After the wire 65 stops being pulled, the push spring 68 drives the locking block 67 to reset and press the wire 65, relying on friction to lock the length of the wire 65 pulled out. When it is necessary to retract the wire 65, press the unlock button 56. Through the cooperation of the first guide slope and the second guide slope, the axial pressing force is converted into the radial retraction force of the locking block 67. The locking block 67 compresses the push spring 68 and disengages from the wire 65. At this time, the coil spring releases its elastic force to drive the winding shaft 62 to rotate, automatically winding the wire 65 into the wire storage compartment 61.

[0037] The device features an airbag clamping system on its skin-contact side, including a rear airbag 81 and side airbags 82, both of which are flexible, arc-shaped airbag structures. The two rear airbags 81 are fixedly mounted on the inner arc surfaces of the left and right hinge shells 19, corresponding to the back of the neck area; the two side airbags 82 are fixedly mounted on the inner arc surfaces of the left and right inner arm shells 24, corresponding to the sides of the neck area. Each airbag's skin-contact surface is evenly covered with anti-slip textured patterns, which increase friction with the skin after inflation, improving wearing stability. Each airbag has an inflation port at its bottom, which, after being collected by an internal air tube, connects to the air output terminal of the external host unit 1. Inflation and deflation are uniformly controlled by the built-in air pump of the host unit 1. After inflation, the airbags provide multi-point flexible clamping to the neck, distributing wearing pressure and further restricting circumferential and axial slippage of the device, ensuring electrode position stability under dynamic operating conditions.

[0038] The main unit 1 is a portable desktop structure with an integrated handle for easy movement and placement in home settings. The front panel of the main unit 1 features a power cord interface 2 and a power button 3 for connecting to power and controlling the unit's on / off state. Multiple electrode interfaces 4 and tracheal interfaces 5 are located on the sides, connecting to the electrodes and airbags at the neck strap end via external wires 65 and trachea, respectively. The main unit 1 integrates a miniature air pump unit and an electrical stimulation control unit. The air pump unit outputs controllable air pressure to provide inflation and deflation power for each airbag; the electrical stimulation control unit outputs electrical stimulation pulses synchronized with the human respiratory rhythm, which act on the target nerves through a closed loop formed by the upper and lower electrodes, inducing rhythmic contraction of the respiratory muscles.

[0039] The complete usage procedure of the device is as follows: When wearing, hang the neck strap 10 around the neck, and the reset spring 16 provides initial clamping force; rotate the top adjustment knob 31 to adjust the extension and retraction of the adjustment arm 20 to fit the user's neck circumference; move the pitch adjustment seat 41 to adjust the pitch angle of the upper electrode, and it will automatically lock after being released; pull out the lower electrode lead 65 to the appropriate length, and it will automatically lock after being released; place the lower electrode pad 83 on the corresponding position on the chest wall; start the air pump of the main unit 1 to inflate the rear airbag 81, side airbags 82 and electrode air cushion 77 to achieve flexible clamping and electrode contact; then start the electrical stimulation function, and the main unit 1 outputs electrical stimulation pulses synchronized with breathing to complete the treatment. After the treatment, deflate and release the pressure, press the unlock button 56 to retract the lower electrode lead 65, and move the reset lever 49 to reset the pitch angle, and the device can be removed.

[0040] Based on the above description in this specification, those skilled in the art will also understand that the following terms, such as "upper," "lower," "front," "rear," "left," "right," "width," "horizontal," "top," "bottom," "inner," and "outer," which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings of this specification. They are only for the purpose of facilitating the explanation of the present invention and simplifying the description, and do not explicitly or implicitly suggest that the device or element involved must have the specific orientation, or be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms should not be understood or interpreted as limitations on the present invention.

[0041] In addition, in the description of this specification, "multiple" means at least two, such as two, three or more, etc., unless otherwise expressly and specifically defined.

Claims

1. A wearable respiratory nerve electrical stimulation therapy device, characterized in that, The device includes a neckband body, a telescopic adjustment mechanism, a pitch adjustment mechanism, a rotating housing, an upper electrode assembly, a lower electrode plate, an airbag assembly, and a main unit. The neckband body includes a left hinge arm and a right hinge arm hinged together, with an elastic reset element between them to provide inward clamping preload. Guide sliding arms extend from the outer ends of the left and right hinge arms, and the left and right adjustment arms are slidably mounted on the guide sliding arms. The telescopic adjustment mechanism is slidably mounted on the left and right adjustment arms to adjust their telescopic positions. The pitch adjustment mechanism includes a hinged arm on the left and right... The pitch adjustment seat at the distal end of the right adjustment arm also includes a one-way self-locking structure for adjusting the pitch angle of the pitch adjustment seat; the rotating housing is hinged to the pitch adjustment seat, and a wire storage assembly is provided inside it. The lower electrode is wound around the wire storage assembly and led outward by a retractable wire; an upper electrode assembly is provided on the inner side of the rotating housing, and the upper electrode assembly includes a floating support structure and an upper electrode on it; a clamping airbag is provided on the skin-contact side of the neckband body and the adjustment arm; the main unit includes an air pump module connected to the clamping airbag and an electrical stimulation module electrically connected to the upper electrode and the lower electrode.

2. The wearable respiratory nerve electrical stimulation therapy device according to claim 1, characterized in that, The left and right hinge arms are hinged together by a hinge shaft, and the hinge ends of the two arms are provided with limiting arc plates to limit the minimum opening angle; the elastic reset member is a reset tension spring, and its two ends are respectively connected to the tension spring seats on the inner side of the two hinge arms; the guide slide arm is arc-shaped, and its outer arc surface is provided with an arc-shaped toothed rack extending along the arc length.

3. The wearable respiratory nerve electrical stimulation therapy device according to claim 2, characterized in that, The telescopic adjustment mechanism includes an arc-shaped rack on the guide slide arm, a worm gear rotatably mounted in the left and right adjustment arms and meshing with the arc-shaped rack, and an adjustment knob exposed on the adjustment arm; the adjustment knob is connected to the worm gear through an orthogonally arranged bevel gear pair, and the worm gear and the arc-shaped rack form a reverse self-locking transmission pair, which is used to adjust and lock the telescopic position of the adjustment arm.

4. The wearable respiratory nerve electrical stimulation therapy device according to claim 1, characterized in that, The one-way self-locking structure is a ratchet and pawl mechanism, including a ratchet fixed coaxially with the pitch adjustment seat, a pawl hinged to the left and right adjustment arms, and an elastic element; the elastic element is used to drive the pawl to normally press against the ratchet, and the pawl is connected to a reset lever exposed on the adjustment arm. Moving the reset lever can drive the pawl to disengage from the ratchet to release the angle lock.

5. A wearable respiratory nerve electrical stimulation therapy device according to claim 1, characterized in that, The wire storage assembly includes a winding spool and a coil spring. The wire is wound around the winding spool, and the coil spring is used to provide a winding return force. The wire storage assembly also integrates a wire locking structure to lock the wire pull-out length.

6. A wearable respiratory nerve electrical stimulation therapy device according to claim 5, characterized in that, The wire locking structure includes a locking block, a push spring, and an unlocking button. Under normal conditions, the push spring drives the locking block to radially press the wire to achieve locking. When the unlocking button is pressed, the two work together through the guide slope to drive the locking block to retract and release the lock. The unlocking button is fitted with a reset spring.

7. The wearable respiratory nerve electrical stimulation therapy device according to claim 1, characterized in that, The floating support structure includes a universal ball joint, a universal ball, an electrode seat, and a plurality of floating springs evenly distributed around the circumference. The electrode seat is rotatably assembled to the universal ball joint via the universal ball, and the floating springs support the electrode seat between the rotating housing and the universal ball joint. A flexible air cushion is provided on the skin-contact side of the electrode seat, and the upper electrode plate is disposed on the surface of the flexible air cushion.

8. A wearable respiratory nerve electrical stimulation therapy device according to claim 7, characterized in that, A circuit board is fixed inside the rotating housing. The universal ball and the universal ball hinge have a through wiring channel inside. The upper electrode plate is electrically connected to the circuit board through the wiring channel.

9. A wearable respiratory nerve electrical stimulation therapy device according to claim 1, characterized in that, The clamping airbags include a rear airbag located on the skin-contact side of the neckband body and a side airbag located on the skin-contact side of the adjustment arm. The skin-contact surface of each airbag is covered with anti-slip textured patterns.

10. A wearable respiratory nerve electrical stimulation therapy device according to claim 6, characterized in that, The host is a portable desktop structure with an electrode interface and a tracheal interface on its panel. The electrical stimulation module is used to output electrical stimulation pulses that are synchronized with the human respiratory rhythm.

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