Post-scar surgery use of compression vest

Abstract

The utility model discloses a kind of scar postoperative use pressure vests, belong to medical postoperative rehabilitation instrument technical field, solve the problem that traditional elastic garment pressure is not adjustable, easy to relax and inconvenient to put on and take off. Technical scheme main points include: vest body is equipped with outer protective layer, intermediate interlayer and inner skin layer;Pressure sensing matrix is distributed in sternum area (cross shape), scapular area (ring shape) and rib arch edge (linear);Adjusting subsystem contains miniature air pump group connection left / right shoulder 45 degree oblique air bag strip, segmented waist air bag strip and back annular air bag strip;Loose and tight buckle mechanism is linked left / right shoulder tape, waist tape and back auxiliary tape by horizontal rotating shaft, realize multi-region pressure synchronous adjustment;Control unit is based on sensing data linkage control air pump and loose and tight buckle mechanism. The vest is used for scar postoperative dynamic pressure treatment, improve pressure accuracy and wearing comfort.

Description

Technical Field

[0001] This utility model relates to the field of medical postoperative rehabilitation equipment technology. More specifically, this utility model relates to a pressure vest for postoperative scar treatment. Background Technology

[0002] In the clinical management of hypertrophic scars, traditional elastic compression garments, as a basic treatment tool, suffer structural failure primarily in three dimensions:

[0003] 1. The pressure maintenance mechanism is uncontrollable.

[0004] The polymer molecular chains undergo permanent orientation under cyclic stress (stress relaxation rate > 18% / 72h), resulting in an exponential decrease in pressure values ​​in high-activity areas (shoulder girdle, axilla). Clinical data show that the effective pressure maintenance rate is less than 65% on the 10th day of treatment, forcing patients to repeatedly return to the hospital for artificial compensatory tightening, which significantly increases the risk of treatment dislodgement.

[0005] 2. Absence of biological dynamic response

[0006] Lack of swelling adaptation: Postoperative tissue fluid volume fluctuations cause changes in thickness (Δh≥±30%), and the static pressure system cannot follow and adjust accordingly, with a pressure deviation exceeding the threshold (>40mmHg or <15mmHg) rate of 74%;

[0007] Respiratory coupling failure: Respiratory movements cause a circumference change of 4-6 cm in the costal arch area. Existing rigid / elastic materials all generate pressure oscillations of >35%, disrupting the continuity of treatment.

[0008] 3. Imbalance in anatomical mechanical transmission

[0009] Stress concentration: Due to the abrupt change in curvature of the bony prominence in the middle segment of the clavicle, the pressure reaches 230% of that in the flat area (>50 mmHg), which can lead to dermal ischemia after 2 hours.

[0010] Pressure escape: The inferior angle of the scapula forms a low-pressure area due to anatomical depression (effective pressure is only 40-45%), and compensatory tightening causes anterior rotation torque of the scapula >0.8 N·m, which accelerates glenohumeral joint degeneration.

[0011] It is evident that traditional techniques are limited by the static nature of material constitutive relations (elastic bodies cannot resist plastic deformation), the lack of biofeedback pathways (no real-time sensing-response mechanism), and insufficient anatomical adaptability (failure to decouple the contradiction between stress concentration at bony prominences and pressure escape from soft tissues), forming a fundamental obstacle to improving clinical efficacy. Utility Model Content

[0012] The purpose of this invention is to provide a pressure vest for post-scar surgery. It monitors chest / back / rib pressure in real time through multiple built-in pressure sensing units. The control unit links a micro air pump group and a rotating shaft mechanism to establish a pneumatic-mechanical dual-drive dynamic compensation system. This system simultaneously solves three major contradictions: pressure maintenance (anti-attenuation), dynamic response (adapting to swelling / breathing), and anatomical adaptation (balancing shoulder / back pressure). Within a single integrated device framework (the vest body's interlayer accommodates all components), it improves pressure accuracy and wearing comfort, providing a more effective solution for dynamic pressure treatment after scar surgery.

[0013] To achieve these objectives and other advantages of this invention, a compression vest for post-scar surgery is provided, comprising:

[0014] The vest body includes: an outer protective layer, a middle interlayer, and an inner skin-friendly layer; the middle interlayer has an inner fixing ear around the waist.

[0015] A functional component, located in the intermediate mezzanine, includes:

[0016] Multiple pressure sensing units, including: chest pressure sensing units distributed in the midline of the sternum and arranged in a cross shape; back pressure sensing units distributed in the scapular region and arranged in a ring shape; and lateral pressure sensing units linearly distributed along the edge of the costal arch.

[0017] The adjustment subsystem includes: a miniature air pump assembly; multiple airbag strips connected to the miniature air pump assembly via conduits, including: a left shoulder airbag strip, a right shoulder airbag strip, a lumbar airbag strip, and two back ring-shaped airbag strips; the lumbar airbag strip horizontally encircles the lower edge of the costal arch and is divided into anterior, lateral, and posterior sections; the two back ring-shaped airbag strips cover the left and right scapular regions, respectively;

[0018] The fastening mechanism includes: a rotating shaft, which is horizontally arranged and extends in the left-right direction, and rotates under the drive of a power device; a first fixing ear, which is located directly above the rotating shaft; a second fixing ear, which is located directly below the rotating shaft and offset to the left and right from the first fixing ear; a row of third fixing ears, which are located between the left and right scapular regions and arranged in the horizontal direction; a left shoulder webbing, one end of which is fixed to the left acromion position, and the other end passes through the first fixing ear and is fixed to the top left side of the rotating shaft; a right shoulder webbing, one end of which is fixed to the right acromion position, and the other end passes through the first fixing ear and is fixed to the top left side of the rotating shaft; a waist webbing, which is arranged around the waist and passes through an inner fixing ear, and both ends pass through the second fixing ear and are fixed to the bottom right side of the rotating shaft; and a back auxiliary webbing, the middle of which passes horizontally through a row of third fixing ears, and both ends are fixed to the top left side of the rotating shaft.

[0019] The control unit is connected to each pressure sensing unit, miniature air pump assembly, and power unit.

[0020] Preferably, the post-scar compression vest further includes:

[0021] Human-computer interaction module, which includes:

[0022] A Bluetooth transmission unit is located in the middle layer and is connected to the control unit;

[0023] A touch panel is located on the surface of the outer protective layer on the left chest and is connected to the control unit;

[0024] The emergency release button is located in the center of the chest and is connected to the control unit.

[0025] Preferably, the compression vest used after scar treatment has an airbag strip on the left shoulder extending obliquely upward and backward at a 45° angle from the outer side of the left clavicle to the upper edge of the left scapula; and an airbag strip on the right shoulder extending obliquely upward and backward at a 45° angle from the outer side of the right clavicle to the upper edge of the right scapula.

[0026] Preferably, the compression vest used after scar treatment has an outer protective layer with a ring of external fixation ears distributed horizontally along the lower edge of the costal arch, and a waist belt is threaded through it.

[0027] Preferably, the post-scar compression vest has side zippers symmetrically arranged on both sides of the vest body.

[0028] Preferably, the elastic buckle mechanism of the post-scar compression vest further includes:

[0029] The first fixing block is fixed to the top left side of the rotating shaft. The other end of the left shoulder webbing passes through the first fixing ear and is fixed to the first fixing block. The other end of the right shoulder webbing passes through the first fixing ear and is fixed to the first fixing block. Both ends of the back auxiliary webbing are fixed to the first fixing block.

[0030] The second fixing block is fixed to the bottom right side of the rotating shaft and is offset from the first fixing block. Both ends of the waist webbing pass through the second fixing ear and are fixed to the second fixing block.

[0031] Preferably, the compression vest for post-scar care includes an elastic buckle mechanism comprising:

[0032] The worm gear transmission mechanism includes a worm and a worm wheel that meshes with the worm. The worm wheel is fixedly mounted on a horizontally positioned worm wheel shaft, which is horizontally positioned and extends in the left-right direction. The rotating shaft is the worm wheel shaft. When the stepper motor drives the worm, the worm wheel rotates, causing the worm wheel shaft to rotate.

[0033] Preferably, the surgical compression vest has Velcro straps at both ends of the waistband.

[0034] This utility model has at least the following beneficial effects:

[0035] This invention significantly improves the precision and comfort of post-surgery compression therapy for scars through a multi-layered structural design and multi-component collaboration. The vest's outer protective layer, middle interlayer, and inner skin-friendly layer work together. The outer layer is abrasion-resistant and windproof, the middle interlayer accommodates functional components, and the inner layer is skin-friendly and breathable. Combined with the waist-circling internal fixation ear and waist straps, it ensures stable wear and avoids the problems of loosening and shifting common in traditional elastic garments.

[0036] This invention achieves dynamic pressure compensation through the linkage of a pressure sensing unit and an adjustment subsystem. Pressure sensing units on the chest, back, and ribcage edges monitor pressure data in real time. The control unit drives a micro-pump assembly to adjust the inflation volume of the airbag strips, while simultaneously tightening or loosening the webbing via a linkage mechanism. This dual mechanism resists pressure attenuation and adapts to postoperative tissue fluid fluctuations and circumferential changes caused by respiratory movements, overcoming the shortcomings of traditional elastic compression garments in terms of uncontrollable pressure maintenance and lack of biodynamic response.

[0037] This invention optimizes force transmission through anatomically adapted design. The 45° angled airbag strips on the left and right shoulders conform to the shoulder muscle direction, dispersing stress concentration in the clavicle bony prominence area; the circular airbag strip on the back, in conjunction with the back support webbing, fills the low-pressure area in the inferior scapular angle; the segmented lumbar airbag strip responds to respiratory movements, reducing pressure oscillations. Combined with the precise control of the worm gear transmission mechanism, it achieves uniform pressure distribution across multiple areas, avoiding complications such as dermal ischemia and joint degeneration caused by insufficient anatomical adaptation in traditional techniques.

[0038] This invention improves operational safety and convenience through a human-computer interaction module. The touch panel supports local parameter setting and pressure monitoring, the Bluetooth transmission unit enables remote data synchronization, and the emergency release button can quickly relieve pressure within 5 seconds. This solves the problems of traditional compression garments lacking real-time feedback and having delayed emergency handling, providing medical staff and patients with an intelligent and safe operating experience.

[0039] This invention enhances overall stability through a multi-layered fixing structure. The outer protective layer's external fixing ears work in conjunction with the waist belt to form a double-layered mechanical restraint. The waist belt's Velcro design allows for dynamic adjustment of tightness. Combined with the inner fixing ears and webbing system in the middle layer, it effectively prevents the vest from shifting during activity, maintaining stable pressure, especially in situations involving breathing and coughing, thus improving treatment continuity.

[0040] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of a pressure vest for post-scar surgery according to an embodiment of the present invention. Detailed Implementation

[0042] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0043] It should be noted that in the description of this utility model, the terms "horizontal", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0044] like Figure 1 As shown, this utility model provides a compression vest for post-scar surgery, comprising:

[0045] The vest body includes: an outer protective layer, a middle interlayer, and an inner skin-friendly layer; the middle interlayer has an inner fixing ear 18 around the waist;

[0046] A functional component, located in the intermediate mezzanine, includes:

[0047] Multiple pressure sensing units, including:

[0048] The chest pressure sensing unit is distributed in the midline of the sternum and arranged in a cross shape;

[0049] The back pressure sensing units are distributed in the scapular region and arranged in a ring.

[0050] Side pressure sensing units are linearly distributed along the edge of the rib arch;

[0051] The regulation subsystem includes:

[0052] Miniature air pump unit;

[0053] Multiple airbag strips, each connected to a miniature air pump assembly via conduits, and including:

[0054] Left shoulder airbag strip;

[0055] Right shoulder airbag strip;

[0056] The lumbar airbag strip is horizontally wrapped around the lower edge of the costal arch and is divided into anterior, lateral and posterior sections;

[0057] Two circular airbags on the back; they cover the left and right scapular regions respectively;

[0058] The fastening mechanism 1 includes:

[0059] The rotating shaft 11 is horizontally positioned and extends in the left-right direction, and rotates under the drive of the power device;

[0060] The first fixing lug 12 is located directly above the rotating shaft 11;

[0061] The second fixing ear 13 is located directly below the rotating shaft 11 and is offset to the left and right from the first fixing ear 12;

[0062] A third fixed ear 14 is located between the left and right scapular regions and is arranged horizontally.

[0063] The left shoulder webbing 15 has one end fixed to the left acromion and the other end passed through the first fixing ear 12 and then fixed to the top left side of the rotating shaft 11.

[0064] The right shoulder webbing 16 has one end fixed to the right acromion and the other end passed through the first fixing ear 12 and then fixed to the top left side of the rotating shaft 11.

[0065] The waist webbing 17 is set around the waist and passes through a ring of inner fixing ears 18. Both ends pass through the second fixing ears 13 and are fixed to the bottom right side of the rotating shaft 11.

[0066] The back auxiliary webbing 19 is horizontally threaded through a row of third fixing ears 14 in the middle, and both ends are fixed to the top left side of the rotating shaft 11.

[0067] The control unit is connected to each pressure sensing unit, miniature air pump assembly, and power unit.

[0068] The vest consists of an outer protective layer, a middle interlayer, and an inner skin-friendly layer. The middle interlayer has an inner fixing ear 18 around the waist.

[0069] The number of internal fixation ears 18 can be set to 6-10 according to the circumference of the human waist, and the distance between adjacent internal fixation ears 18 is about 8-12cm.

[0070] The outer protective layer can be made of nylon or polyester, which is wear-resistant and windproof; the middle layer can be made of elastic fabric to accommodate functional components; the inner skin-friendly layer can be made of cotton or modal, which is soft and breathable.

[0071] The outer protective layer is located on the outermost side, the middle interlayer is sandwiched between the outer protective layer and the inner skin-friendly layer, and the inner fixing ears 18 are evenly distributed in the waist ring area of ​​the middle interlayer.

[0072] The three-layer structure works together: the outer protective layer resists external friction and environmental influences, the inner skin-friendly layer adheres to the skin to reduce irritation, and the middle interlayer provides installation space for functional components; the inner fixing ear 18 keeps the vest body in a stable position at the waist by passing through the waist webbing 17, and avoids overall displacement.

[0073] Multiple pressure sensing units are located in the middle layer, including: chest pressure sensing units (distributed in the midline of the sternum in a cross shape), back pressure sensing units (distributed in the scapular region in a ring shape), and lateral pressure sensing units (linearly distributed along the edge of the costal arch).

[0074] In the cross-shaped chest pressure sensing unit, the number of transverse and longitudinal sensing units can each be 2-4; the number of annular back pressure sensing units can be set to 4-8, evenly distributed along the circumference of the scapular region; the number of linear lateral pressure sensing units can be set to 3-6 according to the length of the rib arch edge, with a spacing of about 5-10cm.

[0075] The pressure sensing unit can be a thin-film pressure sensor (such as the Tekscan FlexiForce series), whose flexible substrate can adapt to the curvature of the body.

[0076] The pressure sensing unit's substrate is made of flexible PCB material, and the wires are made of silicone insulated wires, which are resistant to bending and meet the requirements of the medical environment.

[0077] The chest pressure sensing unit is fixed in a cross shape in the middle layer of the sternal midline. The transverse sensing unit is arranged horizontally along the sternum, and the longitudinal sensing unit is arranged vertically along the midline of the sternum. The back pressure sensing unit is fixed in a ring around the scapular region in the middle layer of the back area. The lateral pressure sensing units are arranged linearly along the middle layer of the costal arch edge and conform to the direction of the ribs.

[0078] Each area pressure sensing unit is attached to the skin via a flexible substrate, collects pressure signals in real time, converts them into electrical signals, and transmits them to the control unit via silicone wires, providing real-time data support for pressure regulation.

[0079] The adjustment subsystem is located in the middle layer and includes a miniature air pump assembly and multiple airbag strips (left shoulder airbag, right shoulder airbag, lumbar airbag strip, and two back ring-shaped airbag strips). The airbag strips are connected to the miniature air pump assembly via conduits. The lumbar airbag strip horizontally encircles the lower edge of the costal arch and is divided into anterior, lateral, and posterior sections; the two back ring-shaped airbag strips cover the left and right scapular regions, respectively.

[0080] The width of the left and right shoulder airbags can be set to 3-5cm, and the length is determined according to the distance from the outer side of the clavicle to the upper edge of the scapula, about 15-20cm; the front section of the waist airbag strip is about 10-15cm long (corresponding to the front of the abdomen), the side section is about 15-20cm long (corresponding to the sides of the waist), and the rear section is about 10-15cm long (corresponding to the back); the diameter of the back ring airbag strip can be set to 10-15cm according to the size of the scapular area.

[0081] For the miniature air pump unit, a miniature diaphragm pump (such as the Thomas brand 803 series) can be selected, and for the catheter, medical-grade silicone tubing (inner diameter 2-3mm, outer diameter 4-5mm) can be selected.

[0082] The airbag strip is made of polyurethane film with a thickness of 0.1-0.2mm, which combines elasticity and sealing; the catheter is made of medical-grade silicone, which is soft, corrosion-resistant, and easy to wire within the interlayer.

[0083] The miniature air pump unit is fixed in the lower back area of ​​the intermediate interlayer. The left shoulder airbag starts from the outer side of the left clavicle, extends obliquely backward and upward to the upper edge of the left scapula, and is embedded in the intermediate interlayer of the shoulder. The right shoulder airbag is symmetrically arranged on the right side. The front part of the waist airbag strip is located in the intermediate interlayer of the abdomen, the side part extends to both sides of the waist, and the rear part is fixed in the intermediate interlayer of the back, surrounding the lower edge of the rib arch. The two back ring airbag strips accurately cover the left and right scapular areas respectively and are fixed in the corresponding positions of the intermediate interlayer of the back.

[0084] Based on pressure sensor data, the control unit drives a miniature air pump assembly to inflate or deflate the target airbag strip. For example, when the pressure in the scapular region is insufficient, the air pump inflates the back ring airbag strip to fill the low pressure in the anatomical depression; when the pressure in the costal arch region fluctuates due to changes in respiratory circumference, the air pump adjusts the inflation volume of each segment of the lumbar airbag strip to adapt to changes in circumference and maintain stable pressure.

[0085] The elastic buckle mechanism 1 is located in the middle layer and includes: a rotating shaft 11 (horizontally positioned and extending in the left-right direction, driven to rotate by a power device), a first fixing ear 12 (located directly above the rotating shaft 11), a second fixing ear 13 (located directly below the rotating shaft 11, offset from the first fixing ear 12), a row of third fixing ears 14 (located between the left and right scapular regions, arranged in the horizontal direction), a left shoulder webbing 15, a right shoulder webbing 16, a waist webbing 17, and a back auxiliary webbing 19. One end of the left shoulder webbing 15 is fixed to the left acromion, and the other end passes through the first fixing ear 12 and is fixed to the top left side of the rotating shaft 11; one end of the right shoulder webbing 16 is fixed to the right acromion, and the other end passes through the first fixing ear 12 and is fixed to the top left side of the rotating shaft 11; the waist webbing 17 is set around the waist, passes through the inner fixing ear 18, and both ends pass through the second fixing ear 13 and are fixed to the bottom right side of the rotating shaft 11; the back auxiliary webbing 19 passes through the third fixing ear 14 in the middle, and both ends are fixed to the top left side of the rotating shaft 11.

[0086] The diameter of the rotating shaft 11 can be set to 8-12mm, and the length is about 20-30cm (to match the width of the back of the vest); the width of the first fixing ear 12 and the second fixing ear 13 is 2-3cm, and the height is 1-1.5cm; the third fixing ear 14 is a strip structure with a width of 2-3cm and a length of 5-8cm, and 3-5 are evenly arranged in the horizontal direction.

[0087] The power unit can be a small stepper motor (such as the SANYO DENKI 103H7123-5040 model), which is connected to the rotating shaft 11 through a worm gear transmission mechanism (such as a worm gear assembly adapted to a precision gearbox) to achieve precise rotation control of the rotating shaft 11.

[0088] The rotating shaft 11 is made of aluminum alloy (such as 6061-T6) with an anodized surface. The first fixing ear 12, the second fixing ear 13, and the third fixing ear 14 can be made of nylon plastic (such as PA66) or aluminum alloy. Nylon is lightweight and wear-resistant, while aluminum alloy has higher strength. The left shoulder webbing 15, the right shoulder webbing 16, the waist webbing 17, and the back auxiliary webbing 19 are made of nylon webbing with a width of 2-4cm and a breaking strength ≥500N.

[0089] The rotating shaft 11 is horizontally fixed to the center of the back of the intermediate interlayer. The power unit (stepper motor and worm gear assembly) is installed in the intermediate interlayer at one end of the rotating shaft 11. The first fixing ear 12 is located 5-8cm above the rotating shaft 11. The second fixing ear 13 is located directly below the rotating shaft 11 and offset to the left and right by 5-10cm. The third fixing ear 14 is arranged horizontally in the back area of ​​the intermediate interlayer between the left and right scapular regions. One end of the left shoulder webbing 15 and the right shoulder webbing 16 are sewn to the outer surface of the interlayer at the left and right acromion positions, respectively. The other end passes through the first fixing ear 12 and is fixed to the top left side of the rotating shaft 11. The waist webbing 17 passes through the second fixing ear 13 at both ends and is fixed to the bottom right side of the rotating shaft 11. The back auxiliary webbing 19 passes through the third fixing ear 14 in sequence in the middle and is fixed to the top left side of the rotating shaft 11 at both ends.

[0090] A stepper motor drives a worm gear to rotate, which in turn drives the worm wheel and rotating shaft 11 to rotate synchronously. When rotating shaft 11 rotates clockwise, the left shoulder webbing 15, right shoulder webbing 16, waist webbing 17, and back auxiliary webbing 19 are wrapped and tightened, increasing pressure on the shoulders, waist, and back; when rotating counterclockwise, the webbing is released and relaxed, reducing pressure. For example, when the pressure in the clavicle area is too high, rotating shaft 11 rotates counterclockwise to loosen the shoulder webbing, and in conjunction with the airbag strip deflating, a dual mechanism relieves stress concentration; when the pressure in the scapular area is insufficient, rotating shaft 11 rotates clockwise to tighten the back auxiliary webbing 19, and in conjunction with the back ring airbag strip inflating, fills the low-pressure area.

[0091] The control unit is connected to each pressure sensing unit, micro air pump group and power unit, and is located in the waist area of ​​the middle interlayer.

[0092] The control unit measures approximately 6cm × 4cm × 1.5cm and is designed to fit into the intermediate mezzanine space.

[0093] The control unit can be an STM32F103 series microcontroller development board, which integrates an ADC module for acquiring pressure sensing signals and a PWM module for driving the micro air pump assembly and stepper motor.

[0094] The control unit housing is made of ABS engineering plastic, and the internal circuit board is coated with conformal coating to meet the humidity and cleanliness requirements of the medical environment.

[0095] The control unit is fixed to the back of the middle layer by Velcro or clips, close to the miniature air pump unit and power unit, shortening the wire connection distance.

[0096] The control unit reads the analog signal from the pressure sensing unit in real time through the ADC module, converts it into a digital signal, and compares it with a preset pressure threshold (e.g., 15-40 mmHg). When the pressure exceeds the upper limit of the threshold, the control unit controls the micro air pump to release air and the stepper motor drives the rotating shaft 11 to loosen the webbing; when the pressure is lower than the lower limit of the threshold, the control unit controls the air pump to inflate and the rotating shaft 11 to tighten the webbing, forming a "sensing-processing-execution" closed loop to achieve dynamic and coordinated adjustment of pressure in multiple areas.

[0097] Post-surgery compression vest usage instructions:

[0098] 1) Wearing and initial setup

[0099] Donning, doffing and initial fixation:

[0100] The patient puts the vest on by inserting it through both sides of the vest body, so that the inner skin-friendly layer fits the skin and the outer protective layer faces outward.

[0101] The waist webbing 17 is passed through the inner fixing ear 18 of the middle interlayer, and the two ends are fixed to the bottom right side of the rotating shaft 11 after passing through the second fixing ear 13; the left shoulder webbing 15 and the right shoulder webbing 16 pass through the first fixing ear 12 from the left and right acromion positions respectively, and are fixed to the top left side of the rotating shaft 11; the back auxiliary webbing 19 is passed through the middle of the row of third fixing ears 14 between the left and right scapular areas, and the two ends are fixed to the top left side of the rotating shaft 11, completing the initial wearing.

[0102] Initial pressure setting:

[0103] An initial pressure regulation strategy (such as a target pressure of 20-25 mmHg in the sternal region and 18-22 mmHg in the scapular region) is generated by the built-in algorithm of the control unit.

[0104] The control unit drives the micro air pump assembly to inflate the waist airbag strip (front, side, and rear sections) and the back ring airbag strip to the initial pressure value. At the same time, the stepper motor drives the rotating shaft 11 to rotate, tightening the left shoulder webbing 15, right shoulder webbing 16, waist webbing 17 and back auxiliary webbing 19 to establish basic pressure support.

[0105] 2) Dynamic pressure regulation process

[0106] Real-time pressure monitoring and anti-attenuation compensation

[0107] Pressure sensing units in the chest (cross-shaped), back (ring-shaped), and ribcage edge (linear) areas continuously collect pressure data from each area (e.g., once every 2 seconds) and transmit it to the control unit.

[0108] When the pressure value in high-frequency activity areas such as the shoulder straps and underarms is detected to be lower than a preset threshold (e.g., effective pressure maintenance rate < 65%), the control unit simultaneously triggers two operations:

[0109] Pneumatic compensation: The miniature air pump unit inflates the left and right shoulder airbags to increase the pressure coverage area of ​​the shoulder and disperse the concentrated pressure in the bony prominence area of ​​the middle clavicle (avoiding the pressure from reaching 230% of the flat area).

[0110] Mechanical compensation: The stepper motor drives the rotating shaft 11 to rotate clockwise, tightening the left shoulder webbing 15, the right shoulder webbing 16 and the back auxiliary webbing 19. The automatic tensioning buckle mechanism 1 dynamically increases the shoulder tension, resists the stress relaxation of the elastic material (stress relaxation rate > 18% / 72h), and maintains effective pressure stability.

[0111] Biodynamic response (swelling / respiratory adaptation)

[0112] Swelling-adaptive adjustment: When postoperative tissue fluid fluctuations cause changes in chest / back thickness (Δh≥±30%), and the pressure sensing unit detects a pressure deviation exceeding the threshold (>40mmHg or <15mmHg), the control unit drives the micro-pump assembly to inflate or deflate the corresponding airbag strip according to the direction of the thickness change. For example:

[0113] When tissues swell and thicken, the air pump reduces the inflation volume of the chest airbag strip to avoid excessive pressure; when tissues shrink and thin, the air pump increases the inflation volume of the back ring airbag strip to fill the low-pressure area in the inferior angle of the left and right scapulae (traditional effective pressure is only 40-45%).

[0114] Respiratory Coupling Regulation: When respiratory movements cause a 4-6cm change in the circumference of the costal arch area, the anterior, lateral, and posterior sections of the lumbar airbags independently adjust their inflation volume via a miniature air pump assembly. During inhalation (costal arch expansion, increased circumference), the anterior airbag (front of the abdomen) inflates appropriately to fill the gap between the anterior abdomen and the vest after the costal arch expansion, preventing a sudden drop in pressure due to increased volume (avoiding a drop below 15mmHg). The lateral and posterior airbags (both sides of the waist and back) coordinate with the lateral and posterior movements of the costal arch expansion, maintaining a basic inflation volume or slight inflation to support the sides and back of the costal arch and prevent overall pressure imbalance due to increased circumference. For example, the anterior airbag inflation volume is increased by 60% (core compensation area), the lateral airbag inflation volume is increased by 20% (auxiliary compensation), and the posterior airbag maintains pressure (no movement). During exhalation (costal arches retract, circumference decreases), the anterior airbag (front of the abdomen) retracts, reducing the space in the anterior abdominal area. The airbag deflates moderately to prevent a sudden increase in pressure due to reduced volume (avoiding exceeding 40 mmHg), thus relieving abdominal pressure. When the lateral and posterior airbags (sides of the waist and back) retract, the soft tissue on the sides and back may experience localized indentation due to elasticity. The airbags inflate slightly to fill the gap between the costal arches and the vest, preventing pressure from escaping due to tissue retraction and maintaining uniform circumferential pressure. For example, the lateral airbags inflate by 40% (core pressure area), the posterior airbags by 20% (synergistic inflation), and the anterior airbags deflate by 50% (releasing excess pressure). By dividing the lumbar airbag strip into three segments—anterior, lateral, and posterior—differential adjustments can be made to the range of motion in different areas of the costal arch (the anterior segment exhibits the greatest expansion / retraction, followed by the lateral and posterior segments). This avoids pressure fluctuations (>35%, as described in the background art) caused by insufficient overall deformation in traditional single-segment airbags. During inhalation, the anterior segment inflates to compensate for the increased space; during exhalation, the anterior segment deflates to prevent high pressure, while the lateral and posterior segments increase pressure to maintain support. This aligns with the technical logic of "dynamically adjusting inflation volume to adapt to circumferential changes," effectively reducing pressure fluctuations caused by respiratory movements. Anatomical and biomechanical optimization (stress dispersion and pressure equalization) is also achieved.

[0115] Shoulder stress dispersion: The left and right shoulder airbags, through the support surfaces formed after inflation, evenly transmit the pressure of the mid-clavicular bony prominence area to the shoulder muscle group, avoiding local pressure >50mmHg that could lead to dermal ischemia.

[0116] Back pressure equalization: When the back pressure sensing unit (distributed in the left and right scapular regions in a ring arrangement) detects insufficient pressure at the inferior angle of the scapula in the left and right scapular regions, the air pump increases the inflation volume of the back ring airbag strip, while the rotating shaft 11 tightens the back auxiliary webbing 19. Through the horizontal constraint of the third fixing ear 14, it specifically fills the low-pressure area in the anatomical depression, avoiding compensatory tightening that causes the scapula to rotate anteriorly with a torque >0.8 N·m, thus protecting the glenohumeral joint.

[0117] Technical Benefits: Through a layered structural design and multi-component collaboration, precise pressure monitoring and dynamic adjustment are achieved. The pressure sensing unit covers key anatomical areas, providing real-time pressure data feedback; the adjustment subsystem responds to pressure changes via dual pathways, adjusting the airbag inflation volume and controlling the webbing tension; the tensioning buckle mechanism 1 utilizes a stepper motor and transmission components to achieve synchronous adjustment across multiple areas, solving the problems of uncontrollable pressure and insufficient anatomical fit in traditional elastic garments. The three-layer material combination enhances wearing comfort, while the internal fixation ear 18 and webbing structure strengthen wearing stability. The overall solution provides a more efficient and comfortable device option for post-scar surgery compression therapy.

[0118] In another embodiment, the post-scar compression vest also includes:

[0119] The human-computer interaction module includes:

[0120] A Bluetooth transmission unit is located in the middle layer and is connected to the control unit;

[0121] A touch panel is located on the surface of the outer protective layer on the left chest and is connected to the control unit;

[0122] The emergency release button is located in the center of the chest and is connected to the control unit.

[0123] The touch panel size can be set to 5-7 inches to fit the left chest area; the emergency release button is about 2-3cm in diameter for easy one-handed pressing.

[0124] The Bluetooth transmission unit can be an integrated Bluetooth module (such as the HC-05 model), the touch panel can be a resistive or capacitive touch screen (such as a 3.5-inch SPI interface touch screen), and the emergency release button can be a round push-button switch with a self-locking function.

[0125] The touch panel surface is covered with scratch-resistant and wear-resistant glass or PET film; the emergency release button housing is made of ABS plastic, and the internal contacts are made of metal.

[0126] The Bluetooth transmission unit is fixed to the right shoulder area of ​​the middle layer and connected to the control unit via a wire; the touch panel is pasted or sewn onto the surface of the outer protective layer on the left chest to ensure convenient operation; the emergency release button is embedded in the outer protective layer in the center of the chest, with the top of the button flush with the outer layer.

[0127] The Bluetooth transmission unit receives data from the control unit in real time and transmits it wirelessly to an external terminal (such as a medical staff's mobile phone or workstation); the touch panel serves as a local operating interface, allowing patients or medical staff to input pressure adjustment parameters and view real-time pressure curves by clicking on the screen; the emergency release button is directly connected to the control unit, and pressing it triggers a rapid deflation and webbing loosening procedure.

[0128] The Bluetooth transmission unit is located in the middle compartment of the right shoulder and is connected to the control unit.

[0129] The Bluetooth transmission distance can be set to within 10 meters, which is suitable for use in wards or home environments; the data transmission frequency is once per second to ensure real-time synchronization of pressure data.

[0130] The Bluetooth module can be a low-power module that supports Bluetooth 4.0 or higher, with a built-in antenna to reduce size.

[0131] The module housing is encapsulated with a flexible circuit board to accommodate slight deformations during shoulder movement.

[0132] The middle layer of the right shoulder is located near the shoulder edge to avoid affecting the movement of the shoulder airbag strip and shoulder strap.

[0133] The control unit encodes information such as pressure sensor data, air pump status, and the position of rotating shaft 11 in each area into Bluetooth signals, which are then sent to the medical staff terminal via the Bluetooth transmission unit on the right shoulder. The terminal software can display the pressure trend graph in real time, and the medical staff can remotely adjust the pressure threshold or treatment plan. The data is then transmitted back to the control unit for execution.

[0134] The touch panel is located on the surface of the outer protective layer on the left chest, and the emergency release button is located in the center of the chest, both of which are connected to the control unit.

[0135] Value selection: The touch panel resolution can be set to 480×320 pixels to meet the parameter display clarity; after the emergency release button is triggered, the control unit must complete the air pump release and webbing loosening actions within 5 seconds.

[0136] The touch panel can be a backlit TFT LCD touch screen, which is convenient for operation in low light conditions; the emergency release button can be a waterproof button, which is suitable for the postoperative care environment.

[0137] The touch panel is bonded to the outer protective layer with medical-grade double-sided adhesive, and the edges are sealed; the emergency release button uses waterproof silicone contacts inside.

[0138] The touch panel is centered slightly to the left on the outer layer of the chest, about 10-15cm below the collarbone; the emergency release button is located on the midline of the sternum, 5-8cm below the touch panel.

[0139] The touch panel interface is divided into sections such as pressure monitoring, parameter setting, and mode switching. Users can select functions by sliding or clicking with their fingertips. For example, in "Parameter Setting", the target pressure value of the sternal area is 20-25 mmHg. After the emergency release button is pressed, the control unit immediately sends a deflation command to the micro air pump group and drives the stepper motor to reverse, releasing all webbing until the pressure sensing unit detects that the pressure in each area is lower than 10 mmHg.

[0140] Technical Benefits: The human-computer interaction module, through the collaborative design of a Bluetooth transmission unit, touch panel, and emergency release button, enhances the operational convenience and safety of the vest. Bluetooth enables remote data monitoring, facilitating real-time adjustments to treatment plans by medical staff; the touch panel provides an intuitive local interface, allowing patients to independently view pressure status or perform basic settings; the emergency release button quickly relieves pressure in case of sudden discomfort, avoiding the risks associated with the inability to quickly remove traditional compression garments. These three components work together to solve the problems of traditional compression garments, such as "lack of real-time data feedback" and "delayed emergency response," enhancing patient control over the treatment process and providing medical staff with an efficient remote management tool, thereby improving the safety and intelligence of post-scar surgery compression therapy.

[0141] In another embodiment, the surgical compression vest is used after the scar treatment, with the left shoulder airbag extending obliquely upward and backward at a 45° angle from the outer side of the left clavicle to the upper edge of the left scapula; and the right shoulder airbag extending obliquely upward and backward at a 45° angle from the outer side of the right clavicle to the upper edge of the right scapula.

[0142] The width of the airbag strip in the left shoulder can be set to 3-5cm, and the length is based on the human shoulder anatomy. The distance from the outer side of the left clavicle to the upper edge of the left scapula is about 15-20cm, and the oblique angle is strictly controlled at 45°±5° to match the direction of the shoulder muscles.

[0143] The airbag strip can be made of polyurethane film with a thickness of 0.1-0.2mm. The inner layer is coated with silicone adhesive to enhance the sealing, and the outer layer is covered with elastic knitted fabric to facilitate sewing with the middle interlayer.

[0144] The starting end of the left shoulder airbag strip is fixed to the middle layer below the lateral side of the left clavicle, extends obliquely upward and backward at 45° along the posterior edge of the acromion, and the end is sutured to the middle layer at the corresponding position on the upper edge of the left scapula to ensure that the airbag strip conforms to the curved surface of the shoulder bone.

[0145] When the control unit drives the micro air pump to inflate the airbag strip in the left shoulder, the airbag strip expands at a 45° angle, forming an oblique support surface from the outer side of the clavicle to the upper edge of the scapula, dispersing the pressure of the bony prominence area in the middle of the clavicle to the shoulder muscle group, and avoiding the local pressure from exceeding 50 mmHg.

[0146] The width, length, and angle of the airbag strip on the right shoulder are the same as those on the left shoulder, which are 3-5cm, 15-20cm, and 45°±5°, respectively, to ensure balanced pressure distribution on both sides.

[0147] Similar to the left shoulder airbag strip, it uses a composite material of polyurethane film and elastic knitted fabric.

[0148] The starting end of the right shoulder airbag strip is fixed to the middle layer below the outer side of the right clavicle, extends obliquely upward and backward at 45° along the posterior edge of the acromion, and the end is fixed to the middle layer at the corresponding position on the upper edge of the right scapula, forming a mirror image symmetrical with the left shoulder airbag strip.

[0149] After the right airbag is inflated, the pressure of the bony prominence area in the middle of the right clavicle is evenly transmitted to the deltoid and trapezius muscle areas through the oblique support surface. Together with the left airbag, the overall pressure distribution deviation of the shoulder is controlled within ±10%, which alleviates the stress concentration problem caused by vertical pressure in traditional elastic garments.

[0150] Technical Effects: The 45° angled extension design of the left and right shoulder airbag strips precisely adapts to the shoulder's anatomical structure, effectively resolving the stress concentration issue in the mid-clavicular bony prominence area, where pressure reaches 230% of the flat area. The support surface formed by the inflated angled airbag strips aligns with the shoulder muscles, dispersing localized high pressure in the clavicular region to a larger area of ​​soft tissue, reducing pressure in this area to a safe range of 25-30 mmHg and preventing dermal ischemia caused by continuous high pressure. Simultaneously, the bilaterally symmetrical angled structure conforms to the shoulder's movement trajectory (such as arm raising and rotation), maintaining continuous pressure transmission during movement, reducing pressure abrupt changes caused by traditional vertical compression methods, and improving wearing comfort and the stability of treatment effects.

[0151] In another embodiment, the postoperative compression vest for scar treatment has an outer protective layer with a ring of external fixation ears distributed horizontally along the lower edge of the costal arch, and a waist belt is threaded through it.

[0152] The number of external fixing ears can be set to 8-12 according to the circumference of the rib arch, with a spacing of about 6-10cm between adjacent external fixing ears to ensure that the force is evenly distributed when the belt passes through.

[0153] The external fixing ears can be made of nylon, with a thickness of about 1-2mm and a smooth surface to reduce wear on the waist belt; the outer protective layer is made of polyester or nylon fabric, which is wear-resistant and easy to fix the external fixing ears.

[0154] The external fixation ears are fixed to the surface of the outer protective layer by sewing. They are arranged in a horizontal ring along the lower edge of the rib arch, and their positions correspond to the front, side and rear sections of the lumbar airbag strip, 5-8 cm above the navel plane.

[0155] The external fixation ears serve as the carrier for the waist belt. After the patient puts on the vest, the waist belt is passed through each external fixation ear in turn. The tightness of the waist belt is adjusted to help fix the waist position of the vest and enhance the overall stability.

[0156] The width of the waist belt can be set to 3-5cm, and the length can be adjusted according to the patient's waist circumference, usually 100-130cm, to ensure that it can cover the entire lower edge of the costal arch.

[0157] Waist belts can be made with either elastic or non-elastic webbing. Elastic webbing can accommodate breathing movements, while non-elastic webbing provides stronger support.

[0158] The belt can be made of nylon webbing with Velcro sewn onto the surface (hook side and loop side). The hook side is made of nylon hooks and the loop side is made of nylon fleece. The adhesive strength can reach more than 5N / cm².

[0159] One end of the belt is fixed to the starting end of the right external fixing ear of the outer protective layer, and the other end passes through all the external fixing ears in sequence, and is fixed to the vicinity of the right end external fixing ear by Velcro, forming a ring-shaped constraint structure.

[0160] The patient or healthcare worker inserts the waistband through the external fixation ears according to their body shape, stretches it to a suitable tightness, and then secures it by attaching the hook and loop sides of the Velcro. The waistband provides initial fixation to the vest, preventing it from shifting upwards when adjusting it. During breathing, the elastic waistband can slightly stretch with changes in the ribcage circumference, while the non-elastic waistband guides pressure evenly through the horizontal distribution of the external fixation ears, avoiding localized tightness caused by traditional single-point fixation. An elastic waistband is preferred.

[0161] Technical Effects: The external fixation ears and waist belt design of the outer protective layer provide additional mechanical fixation support for the vest. The horizontal ring distribution of the external fixation ears matches the anatomical curve of the lower edge of the ribcage, ensuring that the pressure applied by the waist belt is evenly distributed across the abdomen and waist, avoiding vest shifting caused by insufficient waist fixation in traditional elastic garments. The Velcro fastening of the waist belt allows for quick adjustment of tightness, and together with the internal fixation ears 18 in the middle layer and the waist webbing 17, a double-layer fixation structure is formed, improving wearing stability. At the same time, the waist belt can help distribute the pressure of the waist airbag strip, especially enhancing support for the back and sides during exhalation, reducing pressure escape, further optimizing anatomical biomechanical transmission, and improving the comfort and effectiveness of postoperative compression therapy for scars.

[0162] In another embodiment, the postoperative compression vest for scar treatment has symmetrical side-opening zippers (including anti-pinch protective layers) on both sides of the vest body.

[0163] In another embodiment, the post-scar compression vest with elastic buckle mechanism 1 further includes:

[0164] The first fixing block is fixed to the top left side of the rotating shaft 11. The other end of the left shoulder webbing 15 passes through the first fixing ear 12 and is fixed to the first fixing block. The other end of the right shoulder webbing 16 passes through the first fixing ear 12 and is fixed to the first fixing block. Both ends of the back auxiliary webbing 19 are fixed to the first fixing block.

[0165] The second fixing block is fixed to the bottom right side of the rotating shaft 11 and is offset from the first fixing block. Both ends of the waist webbing 17 are fixed to the second fixing block after passing through the second fixing ear 13.

[0166] The length of the first fixing block can be set to 8-12cm, the width to 3-5cm, and the thickness to 1-2cm, to fit the top space on the left side of the rotating shaft 11.

[0167] The first fixed block can be a rectangular block structure.

[0168] The first fixing block can be made of aluminum alloy or nylon. Aluminum alloy has high strength (tensile strength ≥150MPa), while nylon is lightweight and wear-resistant (Shore hardness ≥80D).

[0169] The first fixing block is fixed to the top left side of the rotating shaft 11 by screws or welding, located in the back area of ​​the middle interlayer, near the left scapula area. The left shoulder webbing 15 and the right shoulder webbing 16 pass through the first fixing ear 12 (located directly above the rotating shaft 11), and their ends are fixed to the front surface of the first fixing block by metal rivets or stitching; the two ends of the back auxiliary webbing 19 are directly stitched or riveted to the rear surface of the first fixing block.

[0170] When the rotating shaft 11 rotates clockwise, the first fixing block rotates synchronously with the shaft, wrapping around the left shoulder webbing 15, the right shoulder webbing 16 and the back auxiliary webbing 19. The three webbings are tightened synchronously through friction and the constraint of the fixing point. When the rotating shaft 11 rotates counterclockwise, the webbing gradually loosens under the action of elastic restoring force. The first fixing block, as a unified fixing point, ensures that the tension of the multiple webbings is uniform.

[0171] The second fixing block has the same dimensions as the first fixing block, with a length of 8-12cm, a width of 3-5cm, and a thickness of 1-2cm, matching the bottom space on the right side of the rotating shaft 11.

[0172] The second fixing block can be the same rectangular block structure as the first fixing block.

[0173] The second fixing block can be made of aluminum alloy or nylon, the same material as the first fixing block, to ensure symmetrical structural strength.

[0174] The second fixing block is fixed to the bottom right side of the rotating shaft 11, offset horizontally by 5-10cm from the first fixing block to avoid interference. The two ends of the waist webbing 17 pass through the second fixing ears 13 (located directly below the rotating shaft 11, offset from the first fixing ears 12), and are fixed to the front surface of the second fixing block by metal rivets or sewing. The middle section of the waist webbing 17 passes through the inner fixing ears 18 of the middle interlayer to form a ring constraint.

[0175] When the rotating shaft 11 rotates, the second fixing block rotates synchronously and wraps around the waist webbing 17. Through the double constraint of the inner fixing ear 18 and the second fixing block, the waist pressure is evenly transmitted to the rotating shaft 11. For example, when it is necessary to increase the waist pressure, the rotating shaft 11 rotates clockwise, the second fixing block tightens the waist webbing 17, and the waist airbag strip inflates to achieve the synergistic effect of pneumatic and mechanical pressurization; when the pressure is too high, the rotating shaft 11 rotates counterclockwise, the second fixing block releases the webbing, and the waist pressure is relieved.

[0176] Technical Effects: The design of the first and second fixing blocks provides an integrated fixing point for the multi-webbing connection of the elastic buckle mechanism 1, solving the problem of uneven tension caused by traditional decentralized fixing methods. The first fixing block uniformly connects the left shoulder webbing 15, the right shoulder webbing 16, and the back auxiliary webbing 19, ensuring synchronous adjustment of shoulder and back pressure and avoiding shoulder misalignment caused by differences in force on one side of the webbing. The second fixing block is staggered with the first fixing block, making the tension transmission path of the waist webbing 17 more balanced and reducing the local tightness in the waist. The two fixing blocks, together with the rotation of the rotating shaft 11, realize the mechanical linkage of "synchronous tightening / relaxation of multiple webbing", improving the efficiency and consistency of pressure adjustment, while simplifying the webbing installation process, facilitating rapid clinical adjustment, and enhancing the wearing stability and reliability of the post-scarring compression vest.

[0177] In another embodiment, the post-scar compression vest with elastic buckle mechanism 1 includes:

[0178] The worm gear transmission mechanism includes a worm and a worm wheel meshing with the worm. The worm wheel is fixedly mounted on a horizontally arranged worm wheel shaft, which is horizontally arranged and extends in the left-right direction. The rotating shaft 11 is the worm wheel shaft. When the stepper motor drives the worm, the worm wheel rotates, causing the worm wheel shaft to rotate.

[0179] The module of the worm can be set to 0.5-1.0mm, with 1-3 teeth. The module of the worm wheel matches that of the worm, with 20-30 teeth and a transmission ratio of 20-30:1, ensuring that the rotational speed of the rotating shaft 11 is stable (speed ≤ 5 rpm).

[0180] The stepper motor can be a hybrid stepper motor, and the worm and worm wheel can be metal worm and worm wheel assemblies from standard gearboxes (such as copper worm wheels or steel worms).

[0181] The worm can be made of 45 steel with surface hardening treatment (hardness HRC45-50), and the worm wheel can be made of tin bronze (such as ZCuSn10Pb1), which has good wear resistance.

[0182] The worm gear is horizontally mounted on the left side of the back of the intermediate interlayer and is coaxially connected to the output shaft of the stepper motor; the worm wheel is fixed to the left end of the worm wheel shaft (i.e., the rotating shaft 11) and located in the center of the back of the intermediate interlayer. The worm gear and the worm wheel mesh inside the intermediate interlayer, and the gearbox housing is fixed to the interlayer substrate by screws.

[0183] A stepper motor drives the worm gear to rotate, which in turn drives the worm wheel shaft (rotating shaft 11) to rotate through the worm gear transmission mechanism, thereby realizing the adjustment of the webbing tension of the tensioning buckle mechanism 1.

[0184] The stepper motor's step angle can be set to 1.8°, and after subdivision, the accuracy reaches 0.005°, ensuring that the rotation angle error of the rotating shaft 11 is ≤ ±0.5°.

[0185] The stepper motor driver can be an integrated stepper motor driver that supports pulse signal control.

[0186] The stepper motor housing is made of aluminum alloy, which provides good heat dissipation; the driver circuit board uses an FR-4 substrate, which is resistant to bending.

[0187] The control unit sends pulse signals to the stepper motor driver, driving the worm gear to rotate clockwise or counterclockwise. As the worm gear rotates, it drives the worm wheel to rotate synchronously through tooth meshing. Because the worm wheel has more teeth than the worm (transmission ratio 20-30:1), the worm wheel shaft (rotating shaft 11) rotates smoothly at a lower speed, thereby winding or unwinding the shoulder webbing 17, waist webbing 17, and back auxiliary webbing 19. For example, when it is necessary to tighten shoulder pressure, the control unit sends a positive pulse, causing the worm gear to drive the worm wheel, making the rotating shaft 11 rotate clockwise. This tightens the left shoulder webbing 15, right shoulder webbing 16, and back auxiliary webbing 19 through the first fixing block. The pressure sensing unit monitors the shoulder pressure in real time, stopping rotation when a preset threshold (e.g., 25 mmHg) is reached.

[0188] Technical Benefits: The worm gear transmission mechanism provides a low-speed, high-torque power transmission method for the tensioning buckle mechanism 1, solving the problems of slippage in traditional gear transmissions or insufficient torque in direct stepper motor drive. The high transmission ratio of the worm gear improves the rotational accuracy of the rotating shaft 11. Combined with the microstepping control of the stepper motor, the webbing tension error can be controlled within ±5%, ensuring the uniformity of pressure adjustment in multiple areas. Simultaneously, the worm gear meshing has a self-locking function (when the worm lead angle is less than the friction angle). When the stepper motor stops driving, the rotating shaft 11 can remain in a fixed position, preventing webbing loosening due to patient movement and enhancing the stability of pressure maintenance. This transmission mechanism has a compact structure, adapts to the intermediate interlayer space, and the transmission process is smooth and quiet, improving the clinical user experience and the reliability of the treatment effect of the post-scarring compression vest.

[0189] In another embodiment, the aforementioned post-scarring compression vest has Velcro closures at both ends of the waistband. The waistband passes through the external fixation loops along the lower edge of the ribcage and is secured with Velcro closures to help adjust the overall tightness and ensure the vest fits the torso stably.

[0190] The width of the hook and loop sides of the Velcro should match the waistband and can be set to 3-5cm. The length should be determined according to the allowance at both ends of the waistband and is usually 10-15cm to ensure sufficient adhesive area (adhesive force ≥5N / cm²).

[0191] The hook side of the Velcro is sewn to the outer surface of one end of the belt, and the loop side is sewn to the inner surface of the other end of the belt. When the belt passes through the outer fixing ear of the outer protective layer, the two ends overlap in the right abdominal area, and the hook side and loop side are glued and fixed.

[0192] When the patient puts on the vest, the waistband is inserted from the starting end of the left external fixation ear, horizontally wrapped around the abdomen and back along the lower edge of the costal arch, and pulled to the vicinity of the right external fixation ear. After adjusting the tightness, the hook and loop sides are pressed and glued together. During breathing, the Velcro fasteners of the waistband can slide slightly with the change in the circumference of the costal arch, avoiding sudden pressure changes caused by rigid fixation. When adjustment is needed, the Velcro can be quickly loosened or re-attached by simply tearing it off, making the operation convenient.

[0193] Technical Effects: By incorporating Velcro at both ends of the waistband, a flexible and adjustable mechanical fixation method is provided for the vest. The quick adhesion and separation characteristics of the Velcro allow patients or medical staff to dynamically adjust the lumbar pressure according to body shape and treatment stage, avoiding the cumbersome operation of traditional ties or buckles. Simultaneously, the large-area adhesion of the Velcro disperses the tension of the waistband, reducing localized marks and improving wearing comfort. Combined with the internal fixation ears 18 and lumbar webbing 17 in the middle layer, the Velcro fixation of the outer waistband forms a double-stabilizing structure, effectively preventing the vest from shifting during activity. Especially during actions such as coughing or turning over, the slight elastic deformation of the Velcro maintains stable pressure, enhancing the continuity and safety of post-surgery compression therapy.

[0194] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A pressure vest for post-scar surgery, characterized in that, include: The vest body includes: an outer protective layer, a middle interlayer, and an inner skin-friendly layer; the middle interlayer has an inner fixing ear around the waist. A functional component, located in the intermediate mezzanine, includes: Multiple pressure sensing units, including: chest pressure sensing units distributed in the midline of the sternum and arranged in a cross shape; back pressure sensing units distributed in the scapular region and arranged in a ring shape; and lateral pressure sensing units linearly distributed along the edge of the costal arch. The adjustment subsystem includes: a miniature air pump assembly; multiple airbag strips connected to the miniature air pump assembly via conduits, including: a left shoulder airbag strip, a right shoulder airbag strip, a lumbar airbag strip, and two back ring-shaped airbag strips; the lumbar airbag strip horizontally encircles the lower edge of the costal arch and is divided into anterior, lateral, and posterior sections; the two back ring-shaped airbag strips cover the left and right scapular regions, respectively; The fastening mechanism includes: a rotating shaft, which is horizontally arranged and extends in the left-right direction, and rotates under the drive of a power device; a first fixing ear, which is located directly above the rotating shaft; a second fixing ear, which is located directly below the rotating shaft and offset to the left and right from the first fixing ear; a row of third fixing ears, which are located between the left and right scapular regions and arranged in the horizontal direction; a left shoulder webbing, one end of which is fixed to the left acromion position, and the other end passes through the first fixing ear and is fixed to the top left side of the rotating shaft; a right shoulder webbing, one end of which is fixed to the right acromion position, and the other end passes through the first fixing ear and is fixed to the top left side of the rotating shaft; a waist webbing, which is arranged around the waist and passes through an inner fixing ear, and both ends pass through the second fixing ear and are fixed to the bottom right side of the rotating shaft; and a back auxiliary webbing, the middle of which passes horizontally through a row of third fixing ears, and both ends are fixed to the top left side of the rotating shaft. The control unit is connected to each pressure sensing unit, miniature air pump assembly, and power unit.

2. The post-scarring compression vest as described in claim 1, characterized in that, Also includes: The human-computer interaction module includes: A Bluetooth transmission unit is located in the middle layer and is connected to the control unit; A touch panel is located on the surface of the outer protective layer on the left chest and is connected to the control unit; The emergency release button is located in the center of the chest and is connected to the control unit.

3. The post-scarring compression vest as described in claim 1, characterized in that, The airbag strip on the left shoulder extends diagonally upwards and backwards at a 45° angle from the outer side of the left clavicle to the upper edge of the left scapula; the airbag strip on the right shoulder extends diagonally upwards and backwards at a 45° angle from the outer side of the right clavicle to the upper edge of the right scapula.

4. The post-scarring compression vest as described in claim 1, characterized in that, The outer protective layer has a ring of external fixing ears on its surface. The ring of external fixing ears is horizontally distributed along the lower edge of the rib arch, and a waist belt is threaded through it.

5. The post-scarring compression vest as described in claim 1, characterized in that, The vest has symmetrical side zippers on both sides.

6. The post-scarring compression vest as described in claim 1, characterized in that, The elastic buckle mechanism also includes: The first fixing block is fixed to the top left side of the rotating shaft. The other end of the left shoulder webbing passes through the first fixing ear and is fixed to the first fixing block. The other end of the right shoulder webbing passes through the first fixing ear and is fixed to the first fixing block. Both ends of the back auxiliary webbing are fixed to the first fixing block. The second fixing block is fixed to the bottom right side of the rotating shaft and is offset from the first fixing block. Both ends of the waist webbing pass through the second fixing ear and are fixed to the second fixing block.

7. The post-scarring compression vest as described in claim 1, characterized in that, The elastic buckle mechanism includes: The worm gear transmission mechanism includes a worm and a worm wheel that meshes with the worm. The worm wheel is fixedly mounted on a horizontally positioned worm wheel shaft, which is horizontally positioned and extends in the left-right direction. The rotating shaft is the worm wheel shaft. When the stepper motor drives the worm, the worm wheel rotates, causing the worm wheel shaft to rotate.

8. The post-scarring compression vest as described in claim 4, characterized in that, The belt has Velcro straps at both ends.

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