Intelligent monitoring device used after cardiac surgery

Abstract

The invention discloses a post-cardiac-surgery intelligent monitoring device, and relates to the field of post-cardiac-surgery intelligent monitoring, the post-cardiac-surgery intelligent monitoring device comprises a monitoring device main body, the outer side of the monitoring device main body is provided with a connecting assembly, the side edge of the connecting assembly is provided with a wire assembly, and the wire assembly comprises a connecting wire. A flexible self-adaptive frame is arranged at the end, away from the connecting assembly, of the connecting wire. According to the intelligent monitoring device after the cardiac surgery, the probe is naturally attached to the skin through natural resilience of the memory alloy layer and the liquid medical silica gel layer, the probe can be better attached to the skin of a patient through liquid medical silica gel, and the situation that the monitoring effect is affected due to frame displacement is avoided; the titanium-nickel alloy wire serves as the middle layer, synchronous deformation can be achieved along with thoracic fluctuation when the patient breathes, local wrinkles or protrusions are avoided, meanwhile, the left side and the right side of the first adjusting belt or the second adjusting belt or the third adjusting belt can be flexibly adjusted, and therefore the device is suitable for being used by the patient under different conditions.

Description

Technical Field

[0001] This invention belongs to the field of intelligent monitoring after cardiac surgery, specifically an intelligent monitoring device for cardiac surgery. Background Technology

[0002] Patients who have undergone cardiac surgery (such as coronary artery bypass grafting or valve replacement) need to undergo continuous vital sign monitoring for 72 hours after the surgery, with a focus on changes in electrocardiographic rhythm, blood oxygen saturation, and intrathoracic pressure. During this period, the patient's chest wall has local edema due to the surgical wound, and the amplitude of chest wall movement during breathing is 30%-50% greater than that of normal people. At the same time, the skin barrier function is weak (making it susceptible to pressure damage or infection).

[0003] Traditional monitoring devices mostly use rigid ABS plastic frames, with an overall "flat" or "fixed arc" design. The frame cannot dynamically deform with the chest cavity during breathing. After surgery, the area around the patient's wound (lower sternum, costal arch area) is easily subjected to continuous pressure, leading to increased skin redness and pressure sores, which may affect wound healing in severe cases.

[0004] To address these issues, those skilled in the art have proposed an intelligent monitoring device for postoperative cardiac surgery. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent monitoring device for postoperative cardiac surgery, in order to solve the problem that the existing technology has a frame that cannot dynamically deform with the chest wall during breathing, and the area around the postoperative wound (lower sternum and costal arch region) is easily subjected to continuous pressure, resulting in skin redness, increased incidence of pressure sores, and in severe cases, may affect wound healing.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a post-cardiac surgery intelligent monitoring device, comprising a monitoring device body, a connecting component disposed on the outer side of the monitoring device body, a wire assembly disposed on the side of the connecting component, the wire assembly including a connecting wire, a flexible adaptive frame disposed at the end of the connecting wire away from the connecting component, the flexible adaptive frame including a shoulder strap, an outer frame, a breathable mesh interlayer, a first adjustment strap, a second adjustment strap, and a third adjustment strap, a breathable mesh interlayer disposed on the outer side of the shoulder strap, the side of the breathable mesh interlayer being fixedly connected to the outer frame, and a first adjustment strap being disposed between the outer frames. The system includes a first adjustment belt, a second adjustment belt, and a third adjustment belt. Each of the first, second, and third adjustment belts consists of two independent flexible belts. The first, second, and third adjustment belts, the back straps, and the outer frame are all three-layer structures. A Velcro closure is provided between the breathable mesh interlayer and the back straps. An electrocardiogram (ECG) sensor is located on the left inner side of the first adjustment belt, another ECG sensor is located on the right inner side of the second adjustment belt, and a blood oxygen saturation sensor is located on the right inner side of the first adjustment belt. A connecting belt is provided between the first and second adjustment belts, and an intrathoracic pressure sensor is located inside the connecting belt.

[0007] Preferably, the top of the outer frame is U-shaped, and the outer frame is symmetrical and semi-enclosed, conforming to the front contour of the human chest and avoiding interference with protruding parts such as the scapula and spine.

[0008] Preferably, the three-layer structure of the first adjustment belt, the second adjustment belt, the third adjustment belt, the back strap, and the outer frame, from the outside to the inside, is: a waterproof layer, a shape memory alloy layer, and a liquid medical silicone layer. The waterproof layer is made of polyester fiber cloth with a waterproof coating on the surface to enhance overall wear resistance. The shape memory alloy layer is made of titanium-nickel alloy with a mesh woven structure, which has super elasticity and shape memory function, and is used to deform synchronously with the rise and fall of the chest during breathing. The liquid medical silicone layer contains antibacterial ingredients to inhibit the growth of Escherichia coli and Staphylococcus aureus.

[0009] Preferably, an adjustment assembly is provided between the two first adjustment belts, the second adjustment belt, and the third adjustment belt. The adjustment assembly includes an adjustment box, inside which are two winding rollers for winding the two adjustment belts respectively. Two guide rollers are provided at both ends inside the adjustment box for guiding the adjustment belts. Two mounting plates are provided inside the adjustment box, located above the two adjustment belts respectively, and both mounting plates are fixedly connected to the inside of the mounting box. A flexible pad is provided at the bottom of the adjustment box, and a connecting layer is covered on the lower surface of the flexible pad. The connecting layer is made of medical-grade silicone.

[0010] Preferably, each of the two mounting plates is provided with a plurality of reset springs on its top, and a movable plate is fixedly connected to the top of each reset spring. Each movable plate has a pressing hole on the top of its adjustment box, and a pressing block is slidably connected inside each pressing hole. The bottom of each pressing block is fixedly connected to the top of the corresponding movable plate.

[0011] Preferably, each of the two movable plates is provided with a rotating rod on its side, and each rotating rod is provided with a mounting block at the end away from the movable plate. The rotating rod is inclined, and the two ends of the rotating rod are rotatably connected to the side of the movable plate and the side of the mounting block, respectively. Each mounting block is fixedly connected to a limit block at its bottom, and each limit block is fixedly connected to a plurality of limit teeth at its bottom, and the limit teeth are in contact with the adjusting belt.

[0012] Preferably, a plurality of snap-fit ​​blocks are provided on the outer surface of the end of the connecting wire near the connecting component, each snap-fit ​​block has a moving groove on its surface, each moving groove has a tension spring inside, each tension spring has an iron block at its top, the iron block is slidably connected to the moving groove, and a plurality of positioning guide rods are provided on the end of the connecting wire near the connecting component.

[0013] Preferably, the connecting assembly includes a connecting tube, and a connecting plate is provided inside the end of the connecting tube near the main body of the monitoring device. A wire hole is opened at the end of the connecting tube near the main body of the monitoring device, and a plurality of positioning holes are opened on the side of the connecting plate away from the wire hole. The number and size of the positioning holes are matched with those of the positioning guide rods.

[0014] Preferably, the connecting pipe has a plurality of snap-fit ​​slots inside, the snap-fit ​​slots and snap-fit ​​blocks are matched with each other, and each snap-fit ​​slot has an installation slot inside, the installation slot and the moving slot are matched with each other, and each installation slot has a fixing block inside, and each fixing block has an electromagnet at the end away from the bottom of the installation slot.

[0015] Preferably, the back of the outer frame is provided with another breathable mesh interlayer, which is used to wrap the patient's back. The bottom of the breathable mesh interlayer on the front of the outer frame is provided with a drainage tube placement channel. The other breathable mesh interlayer is connected to the first adjustment belt, the second adjustment belt and the third adjustment belt. The two adjustment boxes in the adjustment component of the third adjustment belt are connected separately and are connected to each other by buckles.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This invention involves cleaning the patient's skin, then placing the shoulder straps around the patient's neck. The medical staff holds both sides of the frame (near the costal arch buckle), with the frame's "U-shaped opening" facing upwards and the inner silicone layer facing the patient's skin. The frame is slowly fitted from the front of the patient's chest—the upper edge aligns 2cm below the sternal angle, and the lower edge aligns 3cm above the xiphoid process. The left and right sides cover the anterior axillary line, ensuring the frame is symmetrically semi-enclosed and does not contact the scapula or spine. The breathable mesh interlayer is then connected to the shoulder straps using Velcro to prevent displacement of the flexible, self-adaptive frame. The ECG sensor on the left inner side of the first adjustment strap is aligned with the apex of the heart (5th intercostal space on the left midclavicular line), and the ECG sensor on the right inner side of the second adjustment strap is aligned with the 4th intercostal space on the right sternal border. The top of the sensors is gently pressed (0.5N-1N, approximately equivalent to pressing the skin indentation by 1mm). Ensure the conductive silicone pad inside the embedded slot is in tight contact with the skin without gaps. Then adjust the probe angle of the blood oxygen saturation sensor (red / infrared light emitting end facing the skin) so that the probe is aligned with the right lateral chest near the anterior axillary line. Confirm that the suspended intrathoracic pressure sensor inside the connecting band is aligned with the middle and lower part of the sternal body (2cm from the edge of the surgical incision). Gently pull the connecting band (deformation range ≤3mm) and then release it. Utilize the natural rebound of the shape memory alloy layer and the liquid medical silicone layer to allow the probe to naturally conform to the skin, ensuring a fit of ≥95% (observe that the probe is not tilted or suspended). The liquid medical silicone can better conform to the patient's skin, avoiding frame displacement that would affect the monitoring effect. Furthermore, the titanium-nickel alloy wire as the intermediate layer (deformation recovery rate ≥98%) can deform synchronously with the chest expansion and contraction (expansion ≤40mm) during the patient's breathing, without local wrinkles or bulges.

[0018] 2. This invention involves pressing the pressing block, causing it to move within the pressing groove. As the pressing block moves downwards, it drives the moving plate downwards and compresses the return spring. This movement causes the rotating rod to rotate, which in turn drives the mounting block and the limiting block upwards. This releases the limiting teeth from fixing the first, second, or third adjusting belt, allowing the length of the first, second, or third adjusting belt to be freely adjusted to suit different users. Furthermore, a torsion spring at the rotating part of the take-up roller allows the first, second, or third adjusting belt to automatically spring back and tighten, making the device more flexible. Additionally, each of the first, second, or third adjusting belts consists of two independent flexible belts, allowing for flexible adjustment on both sides to accommodate different patient needs.

[0019] 3. This invention provides a connecting component on the side of the main body of the monitoring device. This component allows the snap-fit ​​block on the side of the connecting wire near the main body of the monitoring device to match and connect with the snap-fit ​​groove on the inner side of the connecting tube. When the connecting wire and the snap-fit ​​block enter the connecting tube, the positioning guide rod connects with the positioning hole on the surface of the connecting plate, thereby creating a conductive path and allowing the circuit signal to be transmitted freely. At this time, pressing the switch of the electromagnet causes the electromagnet to generate a magnetic field, which attracts the iron block in the moving groove to move and pulls the tension spring, causing the iron block to enter the installation groove, thus fixing the connecting wire and preventing the connecting wire from accidentally falling off and affecting normal postoperative monitoring. Furthermore, a 5mm thick medical silicone buffer pad can be added to the outer corner of the main body of the monitoring device to improve the protective effect of the device. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the flexible adaptive frame in this invention;

[0023] Figure 3 This is a schematic diagram of the structure of the adjustment component in this invention;

[0024] Figure 4 This is a schematic diagram of the internal structure of the adjustment component in this invention;

[0025] Figure 5 For the present invention Figure 4 Enlarged view of the structure at point A in the middle;

[0026] Figure 6 This is a schematic diagram of the connecting component in this invention;

[0027] Figure 7 This is a cross-sectional view of the connecting component in this invention;

[0028] Figure 8 This is a schematic diagram of the structure of the first adjusting belt in this invention;

[0029] Figure 9 This is a schematic diagram of the structure of Embodiment 4 of the present invention.

[0030] In the picture:

[0031] 1. Monitoring device main body; 2. Connecting assembly; 201. Connecting pipe; 202. Snap-fit ​​groove; 203. Connecting plate; 204. Wire hole; 205. Positioning hole; 206. Mounting groove; 207. Fixing block; 208. Electromagnet; 3. Wire assembly; 301. Connecting wire; 302. Snap-fit ​​block; 303. Positioning guide rod; 304. Moving groove; 305. Iron block; 306. Tension spring; 4. Flexible adaptive frame; 401. Shoulder strap; 402. Breathable mesh interlayer; 403. Velcro; 404. First adjustment strap; 4041. Liquid medical silicone 4042, Shape Memory Alloy Layer; 4043, Waterproof Layer; 405, Second Adjusting Belt; 406, Third Adjusting Belt; 407, ECG Sensor; 408, Blood Oxygen Saturation Sensor; 409, Connecting Belt; 5, Adjusting Component; 501, Adjusting Box; 502, Flexible Pad Layer; 503, Connecting Layer; 504, Take-up Roller; 505, Guide Roller; 506, Mounting Plate; 507, Return Spring; 508, Pressing Hole; 509, Pressing Block; 510, Limiting Block; 511, Limiting Gear; 512, Moving Plate; 513, Mounting Block; 514, Rotating Rod. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] As attached Figure 1 To be continued Figure 8 As shown:

[0034] Example 1: This invention provides a postoperative intelligent monitoring device for cardiac surgery, comprising a monitoring device body 1, a connecting component 2 disposed on the outer side of the monitoring device body 1, a wire assembly 3 disposed on the side of the connecting component 2, the wire assembly 3 including a connecting wire 301, a flexible adaptive frame 4 disposed at the end of the connecting wire 301 away from the connecting component 2, the flexible adaptive frame 4 including a shoulder strap 401, an outer frame, a breathable mesh interlayer 402, a first adjustment strap 404, a second adjustment strap 405 and a third adjustment strap 406, a breathable mesh interlayer 402 disposed on the outer side of the shoulder strap 401, the side of the breathable mesh interlayer 402 being fixedly connected to the outer frame, and a first adjustment strap 404 being disposed between the outer frames. The system includes three adjustment straps: 404, 405, and 406. Each of these straps consists of two independent flexible straps. The system comprises three layers: the first adjustment strap 404, the second adjustment strap 405, the third adjustment strap 406, the shoulder straps, and the outer frame. A Velcro closure 403 connects the breathable mesh interlayer 402 to the shoulder straps. Specifically, the breathable mesh interlayer 402 uses a 100-mesh polyester fiber mesh (0.2mm aperture), and its sides are ultrasonically welded to the outer frame (welding strength ≥3N / cm). The Velcro closure 403 between the interlayer and the shoulder straps is a nylon hook and loop structure (hook density 500 hooks / cm²). 2 The surface is 1mm thick, with a peel strength ≥5N / cm. It can be repeatedly pasted more than 50 times while maintaining its fixation effect, preventing frame displacement. An ECG sensor 407 is installed on the left inner side of the first adjustment band 404, and another ECG sensor 407 is installed on the right inner side of the second adjustment band 405. Specifically, the ECG sensor 407 is a patch-type ECG sensor (model: medical grade ECG-01), with a sampling rate of 250Hz and a resolution of 16 bits; the conductive silicone pad is 1mm thick (Shore A30) and 1.5cm in diameter, and is fixed to the left inner side of the first adjustment band 404 (aligned with the left midclavicular line). The first adjustment band 404 is positioned 0.5cm-1cm medial to the intersection with the 5th intercostal space (apex signal acquisition area); the second adjustment band 405 is positioned 0.5N-1N medial to the right of the 4th intercostal space (1cm-1.5cm to the right of the midline of the sternum, parasternal signal acquisition area); during installation, the pressure should be controlled at 0.5N-1N (equivalent to a 1mm skin depression) to ensure no gap between the conductive pad and the skin, and the signal noise ≤10μV; a blood oxygen saturation sensor 408 is installed on the right medial side of the first adjustment band 404. The blood oxygen saturation sensor 408 adopts a transmission photoelectric sensor (wavelength 660nm red light + 940nm infrared light), and the probe contact area is 1cm². 2The edges are rounded (radius 0.5mm); it is fixed to the right inner side of the first adjustment band 404, aligned with the right lateral axillary line area (avoiding the costal arch and areas with dense blood vessels), and the pressure between the probe and the skin is controlled at 10mmHg-20mmHg (adjusted via the sensor's built-in pressure feedback) to avoid compressing blood vessels and affecting the accuracy of blood oxygen detection (detection error ≤2%). A connecting band 409 is provided between the first adjustment band 404 and the second adjustment band 405, and an intrathoracic pressure sensor is installed inside the connecting band 409. The intrathoracic pressure sensor adopts a suspended flexible pressure sensor. The sensor (model: FPC-02) has a measurement range of -50cmH2O to +50cmH2O and an accuracy of ±2%. It is encapsulated inside the connecting strap 409 (the connecting strap 409 is a spandex-nylon blend with an elastic recovery rate of ≥95%). It is aligned with the lower middle section of the sternum (2cm from the edge of the surgical incision). During installation, gently pull the connecting strap 409 (deformation ≤3mm) and then release it. The shape memory alloy layer 4042 rebounds to allow the probe to naturally fit. The fit is determined by the pressure signal (fit ≥95% when the contact pressure is 15mmHg-25mmHg).

[0035] In one embodiment of the present invention, the top of the outer frame is U-shaped and the outer frame is symmetrical and semi-enclosed. The width of the U-shaped opening is designed to be 15cm-20cm, the curvature radius of the top arc segment is 5cm-8cm, and the length of the side extension segments is 12cm-15cm. The material is a three-layer composite structure, and the edges are rounded (radius 0.5mm) to ensure that there is no interference with the area more than 3cm from the outer edge of the scapula and more than 2cm from the midline of the spine, so as to avoid compressing bony protrusions.

[0036] In one embodiment of the present invention, the three-layer structure of the first adjustment strap 404, the second adjustment strap 405, the third adjustment strap 406, the shoulder strap, and the outer frame, from the outside to the inside, are: a waterproof layer 4043, a shape memory alloy layer 4042, and a liquid medical silicone layer 4041. The waterproof layer 4043 is made of polyester fiber cloth with a waterproof coating on the surface to enhance the overall wear resistance. The shape memory alloy layer 4042 is made of titanium-nickel alloy with a mesh woven structure, which has super elasticity and shape memory function and is used to deform synchronously with the rise and fall of the chest during breathing. The liquid medical silicone layer 4041 contains antibacterial ingredients to inhibit the growth of Escherichia coli and Staphylococcus aureus.

[0037] Working principle: Wipe the patient's anterior chest skin with 0.9% saline solution (to avoid alcohol residue affecting sensor conductivity). Check that the flexible adaptive frame 4 layers are undamaged and that the sensor cables are unbroken. Place the shoulder strap 401 around the patient's neck, hold both sides of the outer frame (near the costal arch) with both hands, ensuring the U-shaped opening faces upwards and the inner silicone surface faces the skin. Slowly fit the frame from the anterior chest—aligning the upper edge 2cm below the sternal angle and the lower edge 3cm above the xiphoid process, covering both sides to the anterior axillary line. Secure the breathable mesh interlayer 402 to the shoulder strap 401 with Velcro 403. Gently pull the sides of the frame to confirm no displacement (displacement ≤1cm), then activate the monitoring device. Main body 1: Confirm the signals of ECG sensor 407 (stable heart rate display, waveform without noise), blood oxygen saturation sensor 408 (SpO2 value fluctuation ≤1%), and intrathoracic pressure sensor (stable baseline, no drift). If the signals are abnormal, fine-tune the length of the corresponding adjustment belt or the position of the sensor until the parameters are normal. When the patient breathes, the shape memory alloy layer 4042 deforms synchronously with the rise and fall of the chest (the frame deforms 38-40mm when the chest expands 40mm), and the liquid medical silicone layer 4041 remains in contact with the skin to avoid local wrinkles or bulges. The antibacterial ingredients continuously inhibit the growth of Escherichia coli and Staphylococcus aureus on the skin surface, reducing the risk of postoperative infection.

[0038] Example 2: This example is basically the same as the previous example, except that it is designed for patients of different body types (adults / adolescents) and postoperative chest edema. The adjustment component 5 is used to precisely control the length of the adjustment bands while ensuring stability and avoiding wound compression. Specifically, adjustment components 5 are provided between the two first adjustment bands 404, the second adjustment band 405, and the third adjustment band 406. The adjustment component 5 includes an adjustment box 501 made of medical-grade ABS plastic (model ABS-757), with dimensions of 4cm × 2cm × 1.5cm and a matte finish (to avoid irritating the patient with light). The side has an adjustment band inlet / outlet (1cm wide, smooth edges without burrs). The box has internal space reserved for the installation of a take-up roller 504 and a guide roller 505. Two take-up rollers 504 are installed inside the adjustment box 501, each used to take up one of the two adjustment bands. Two guide rollers 505 are installed at each end of the box, used to guide the adjustment bands. 04. POM (Polyoxymethylene) material (Shore D80 hardness) is used, with a diameter of 8mm and a length of 1.8cm. Both ends are nested with torsion springs (0.5mm diameter, 10mm free length, stiffness coefficient 0.5N / mm). One end of the torsion spring is fixed to the shaft of the take-up roller 504, and the other end is fixed to the inner wall of the adjusting box 501, enabling automatic belt rebound (rebound speed 1cm / s, preventing excessive tightening). The guide roller 505 has a stainless steel 304 core (5mm diameter) + a silicone coating layer (0.5mm thickness, Shore D80). There are four adjustment boxes (two at each end of the adjustment box 501), designated as eA40, used to guide the direction of the adjustment belts and reduce friction and wear (friction coefficient ≤ 0.2). The adjustment box 501 contains two mounting plates 506, each positioned above one of the two adjustment belts and fixedly connected to the inside of the box. A flexible pad 502 is located at the bottom of the adjustment box 501, with a connecting layer 503 covering its lower surface. The flexible pad 502 is made of polyurethane foam (density 30 kg / m³). 3 The bottom of the adjustment box 501 (4cm×2cm area) is covered with a 5mm thick layer (compression rebound rate ≥90%) to buffer the pressure of the adjustment box 501 on the skin (contact pressure ≤5mmHg). The connecting layer 503 is made of medical-grade silicone (Shore A20, biocompatibility conforms to ISO10993-1), with a thickness of 1mm, and covers the lower surface of the flexible pad layer 502. When in contact with the skin, the temperature difference is ≤2℃ to avoid cold stimulation, while increasing the friction (static friction ≥8N) to prevent the adjustment box 501 from shifting.

[0039] In one embodiment of the present invention, a plurality of reset springs 507 are provided on the top of both mounting plates 506. A movable plate 512 is fixedly connected to the top of each reset spring 507. A pressing hole 508 is provided on the top of the adjustment box 501 above each movable plate 512. A pressing block 509 is slidably connected inside each pressing hole 508. The bottom of each pressing block 509 is fixedly connected to the top of the corresponding movable plate 512.

[0040] In one embodiment of the present invention, a rotating rod 514 is provided on the side of each of the two movable plates 512. A mounting block 513 is provided at the end of each rotating rod 514 away from the movable plate 512. The rotating rod 514 is inclined. The two ends of the rotating rod 514 are rotatably connected to the side of the movable plate 512 and the side of the mounting block 513, respectively. A limit block 510 is fixedly connected to the bottom of each mounting block 513. A plurality of limit teeth 511 are fixedly connected to the bottom of each limit block 510. The limit teeth 511 are in contact with the adjusting belt.

[0041] Working principle: By pressing the pressing block 509, the pressing block 509 moves within the pressing groove. When the pressing block 509 moves downward, it drives the moving plate 512 downward and presses the return spring 507. At this time, the movement causes the rotating rod 514 to rotate, which in turn causes the mounting block 513 and the limiting block 510 to move upward. This causes the limiting teeth 511 to release the fixation of the first adjusting belt 404, the second adjusting belt 405, or the third adjusting belt 406, allowing the length of the first adjusting belt 404, the second adjusting belt 405, or the third adjusting belt 406 to be freely changed, thus adapting to the use of different users. A torsion spring is provided at the rotating part of the roller 504, which can automatically rebound and tighten the first adjusting belt 404, the second adjusting belt 405, or the third adjusting belt 406, making the use of the device more flexible. At the same time, the first adjusting belt 404, the second adjusting belt 405, or the third adjusting belt 406 are two independent flexible belts, which can be flexibly adjusted on both sides. The two adjusting belts are independently controlled, which can cope with unilateral chest edema of patients (e.g., when the left side is edematous, the left adjusting belt is loosened by 3cm, while the right side is kept at normal length), avoiding compression of the edematous area or wound, while ensuring the sensor fit.

[0042] Example 3: This example is basically the same as the previous example, except that it solves the connection stability problem between the wire assembly 3 and the main body 1 of the monitoring device. It uses a dual structure of mechanical snap-fit ​​and electromagnetic fixation to prevent accidental detachment that could interrupt monitoring, while ensuring stable transmission of circuit signals. Specifically, the outer surface of the connecting wire 301 near the connecting assembly 2 has several snap-fit ​​blocks 302. The connecting wire 301 uses TPU elastic cable (outer diameter 3mm, inner layer is 4-core silver-plated copper wire, wire diameter 0.1mm, insulation layer is PTFE, temperature resistance -40℃ to 80℃), tensile strength ≥100N, bending life ≥10000 times (bending radius 5mm). Each snap-fit ​​block 302 has a moving groove 304 on its surface, and each moving groove 304 has a tension spring 306 inside. Each tension spring 306 has an iron block 305 at its top. 305 is made of low-carbon steel, with a diameter of 1.5mm and a length of 2mm. It is galvanized for rust prevention. The iron block 305 is slidably connected to the moving groove 304. Several positioning guide rods 303 (brass plated with nickel, diameter 1.8mm, length 5mm, coaxiality ≤0.05mm) are provided at the end of the connecting wire 301 near the connecting assembly 2 for precise positioning. The connecting assembly 2 includes a connecting tube 201 made of medical-grade PP polypropylene (wall thickness 2mm, inner diameter 10mm, length 8mm). A connecting plate 203 is provided inside the end of the connecting tube 201 near the main body 1 of the monitoring device. A wire hole 204 is provided at the end of the connecting tube 201 near the main body 1 of the monitoring device. Several positioning holes 205 are provided on the side of the connecting plate 203 away from the wire hole 204. The connecting plate 203 is an epoxy glass cloth laminate, 1.5mm thick, with an insulation resistance ≥10 ohms. 12 Ω, wire hole 204 with a diameter of 2mm is used for cable insertion, positioning hole 205 with a diameter of 1.8mm is used for H7 / f6 transition fit with positioning guide rod 303, the number and size of positioning holes 205 and positioning guide rod 303 are matched with each other, the connecting tube 201 is provided with several snap-fit ​​grooves 202, the snap-fit ​​grooves 202 are matched with snap-fit ​​blocks 302, and each snap-fit ​​groove 202 is provided with an installation groove 206, the installation groove 206 is matched with the position of the moving groove 304, and each installation groove 206 is provided with a fixing block 207, and each fixing block 207 is provided with an electromagnet 208 at the end away from the bottom of the installation groove 206. The outer corners of the monitoring device body 1 are equipped with 5mm thick medical silicone cushioning pads (silicone sponge, Shore A15, impact resistance: no damage when dropped from a height of 1m to a hard ground), and the connecting wire 301 is covered with a wear-resistant TPU layer to avoid damage to the components caused by collision or pulling.

[0043] Working principle: By setting the connecting component 2 on the side of the main body 1 of the monitoring device, the snap-fit ​​block 302 on the side of the connecting wire 301 near the main body 1 of the monitoring device matches and connects with the snap-fit ​​groove 202 on the inner side of the connecting tube 201. When the connecting wire 301 and the snap-fit ​​block 302 enter the connecting tube 201, the positioning guide rod 303 connects with the positioning hole 205 on the surface of the connecting plate 203, thereby conducting and allowing the circuit signal to be transmitted freely. At this time, the switch of the electromagnet 208 is pressed, causing the electromagnet 208 to generate a magnetic field, thereby attracting the iron block 305 in the moving groove 304 to move and pull the tension spring 306, so that the iron block 305 enters the mounting groove 206, thereby fixing the connecting wire 301 and preventing the connecting wire 301 from accidentally falling off, which would affect normal postoperative monitoring. A 5mm thick medical silicone buffer pad can also be added to the outer corner of the main body 1 of the monitoring device to improve the protective effect of the device.

[0044] Example 4: This example has a structure that is basically the same as the examples above, except that, as shown in the attached figure... Figure 9 As shown, this example is used to assist in sternal fixation to reduce patient pain and is also more convenient for patients requiring postoperative pericardial and mediastinal drainage. Specifically, another breathable mesh interlayer 402 is provided on the back of the outer frame to wrap the patient's back. A drainage tube placement channel 410 is opened at the bottom of the breathable mesh interlayer 402 on the front of the outer frame. The other breathable mesh interlayer 402 is connected to the first adjustment belt 404, the second adjustment belt 405, and the third adjustment belt 406. The two adjustment boxes 501 in the adjustment component 5 of the third adjustment belt 406 are connected separately and are connected by buckles. In this embodiment, when in use, the two adjustment boxes 501 in the adjustment component 5 of the third adjustment belt 406 are disconnected by buckles, thereby opening the front breathable mesh interlayer 4. The flexible adaptive frame 4 is then put on. During the wearing process, since the bottom of the front breathable mesh interlayer 4 is separated, the pericardial and mediastinal drainage tube can pass through the bottom of the front breathable mesh interlayer 4, thus avoiding the inconvenience caused by the presence of the pericardial and mediastinal drainage tube. After the device is put on, the two adjustment boxes of the third adjustment strap 406 are reconnected by the buckle. At this time, the device can be adjusted using the adjustment methods of the first adjustment strap 404, the second adjustment strap 405, and the third adjustment strap 406 described in Embodiment 1. Since in this embodiment, the first adjustment strap 404, the second adjustment strap 405, and the third adjustment strap 406 are connected to the back breathable mesh interlayer 4, the patient's sternum can be fixed simultaneously during the adjustment of the first adjustment strap 404, the second adjustment strap 405, and the third adjustment strap 406, thereby reducing the patient's pain.

[0045] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A post-cardiac surgery intelligent monitoring device, characterized in that: The utility model provides a kind of monitoring device, including monitoring device main body (1), the outside of monitoring device main body (1) is provided with connecting assembly (2), the side of connecting assembly (2) is provided with wire assembly (3), and wire assembly (3) includes connecting wire (301), and the end of connecting wire (301) away from connecting assembly (2) is provided with flexible self-adapting frame (4), and flexible self-adapting frame (4) includes shoulder strap (401), outer frame, breathable mesh sandwich (402), first adjusting band (404), second adjusting band (405) and third adjusting band (406), the outside of shoulder strap (401) is provided with breathable mesh sandwich (402), and the side of breathable mesh sandwich (402) is fixedly connected with outer frame, and first adjusting band (404), second adjusting band (405) and third adjusting band (406) are provided between outer frame, and first adjusting band (404), second adjusting band (405) and third adjusting band (406) are two independent flexible bands, and first adjusting band (404), second adjusting band (405), third adjusting band (406), shoulder strap and outer frame are all provided with three-layer structure, and magic tape (403) is provided between breathable mesh sandwich (402) and shoulder strap, left inner side of first adjusting band (404) is provided with electrocardio sensor (407), right inner side of second adjusting band (405) is provided with another electrocardio sensor (407), right inner side of first adjusting band (404) is provided with blood oxygen saturation sensor (408), connecting band (409) is provided between first adjusting band (404) and second adjusting band (405), and chest internal pressure sensor is provided inside connecting band (409).

2. The intelligent monitoring device for post cardiac surgery of claim 1, wherein: The top of outer frame is provided with U-shaped, and outer frame is symmetric half-enclosing type, which fits the contour of human thoracic profile, avoids interference with scapula, spine and other protruding parts.

3. The intelligent monitoring device for post cardiac surgery of claim 1, wherein: The three-layer structure of first adjusting band (404), second adjusting band (405), third adjusting band (406), shoulder strap and outer frame is waterproof layer (4043), memory alloy layer (4042) and liquid medical silica gel layer (4041) from outside to inside, respectively, waterproof layer (4043) is made of polyester fiber cloth, and the surface is provided with waterproof coating, which is used for enhancing overall wear resistance, memory alloy layer (4042) is made of titanium-nickel alloy, and is provided with net-like woven structure, which has super-elasticity and shape memory function, and is used for synchronous deformation with the fluctuation of thoracic profile with breathing, and liquid medical silica gel layer (4041) is added with antibacterial ingredients, which is used for inhibiting the growth of escherichia coli and staphylococcus aureus.

4. The intelligent postoperative cardiac care device of claim 1, wherein: Two said first adjusting band (404), second adjusting band (405) and third adjusting band (406) between the adjusting assembly (5) is provided with, the adjusting assembly (5) includes adjusting box (501), the inside of adjusting box (501) is provided with two winding roller (504), two winding roller (504) is used for winding two adjusting bands respectively, the inside of adjusting box (501) both ends is provided with two guide roller (505), the guide roller (505) is used for guiding wire to adjusting band, the inside of adjusting box (501) is provided with two mounting plates (506), two mounting plates (506) are located above two adjusting bands respectively, and two the mounting plate (506) is fixedly connected with the inside of mounting box, the bottom of adjusting box (501) is provided with flexible pad layer (502), the lower surface of flexible pad layer (502) is covered with connecting layer (503), the connecting layer (503) is made of medical silica gel.

5. The intelligent post-cardiac surgery monitoring device of claim 4, wherein: The top of two said mounting plates (506) is provided with a plurality of reset springs (507), the top of each said reset spring (507) is fixedly connected with a moving plate (512), the top of adjusting box (501) above each said moving plate (512) is provided with a pressing hole (508), each said pressing hole (508) is slidably connected with a pressing block (509), the bottom of each said pressing block (509) is fixedly connected with the top of corresponding moving plate (512).

6. The intelligent post-cardiac surgery monitoring device of claim 5, wherein: The side of two said moving plates (512) is provided with a rotating rod (514), one end of each said rotating rod (514) away from moving plate (512) is provided with a mounting block (513), the rotating rod (514) is provided in inclined shape, the both ends of rotating rod (514) are rotatably connected with the side of moving plate (512) and the side of mounting block (513), the bottom of each said mounting block (513) is fixedly connected with a limiting block (510), the bottom of each said limiting block (510) is fixedly connected with a plurality of limiting clamping teeth (511), the limiting clamping teeth (511) are in contact with the adjusting band.

7. The intelligent postoperative cardiac care device of claim 1, wherein: The outer surface of one end of connecting wire (301) near connecting assembly (2) is provided with a plurality of clamping blocks (302), the surface of each said clamping block (302) is provided with a moving slot (304), the inside of each said moving slot (304) is provided with a tension spring (306), the top end of each said tension spring (306) is provided with an iron block (305), the iron block (305) is slidably connected with the moving slot (304), the one end of connecting wire (301) near connecting assembly (2) is provided with a plurality of positioning guide rods (303).

8. The intelligent post cardiac surgery monitoring device of claim 1, wherein: The connecting assembly (2) comprises a connecting pipe (201), a connecting plate (203) is arranged inside the end of the connecting pipe (201) close to the monitoring device body (1), a wire hole (204) is arranged at the end of the connecting pipe (201) close to the monitoring device body (1), a plurality of positioning holes (205) are arranged on the side of the connecting plate (203) away from the wire hole (204), and the positioning holes (205) and the positioning guide rods (303) are matched in number and size.

9. The intelligent post-cardiac surgery monitoring device of claim 8, wherein: The connecting pipe (201) is internally provided with a plurality of clamping grooves (202), the clamping grooves (202) and the clamping blocks (302) are matched with each other, and an installation groove (206) is arranged in each clamping groove (202), the installation groove (206) and the moving groove (304) are matched in position, and a fixed block (207) is arranged in each installation groove (206), and an electromagnet (208) is arranged at the end of each fixed block (207) away from the bottom of the installation groove (206).

10. The intelligent post cardiac surgery monitoring device of claim 1, wherein: The back of the outer frame is provided with another air-permeable mesh sandwich layer (402), which is used to wrap the back of the patient, the air-permeable mesh sandwich layer (402) on the front of the outer frame is provided with a drainage tube placing channel (410), another air-permeable mesh sandwich layer (402) is connected with the first adjusting belt (404), the second adjusting belt (405) and the third adjusting belt (406), and the two adjusting boxes (501) in the adjusting assembly (5) of the third adjusting belt (406) are connected in a split type, and the two adjusting boxes (501) are connected through buckles.

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