A post-thyroid surgery wound compression support device

Abstract

This invention belongs to the field of medical device technology and discloses a pressure support device for post-thyroidectomy wounds. The pressure component includes a base shell connected to a fixing strap. A rotating shaft is rotatably connected inside the base shell, and an adjustment knob is fixedly connected to the rotating shaft. A gear is fixedly connected to the rotating shaft. A rack is slidably connected inside the base shell, meshing with the gear. One end of the rack is connected to a pressure pad. The base shell is provided with a fixing component to restrict the rotation of the rotating shaft. The fitting component includes an air bladder and an inflation component. The air bladder is connected to the bottom of the pressure pad, and the inflation component is connected to the air bladder. Rotating the adjustment knob causes the rack to slide along the length of the rack, moving the pressure pad and the air bladder. This invention solves the problems of uncontrollable pressure distribution, inflexible pressure adjustment, difficulty in real-time pressure adjustment according to different neck areas and patient activity, and inability to closely conform to the physiological curve of the neck, resulting in uneven pressure distribution.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a pressure support device for postoperative thyroidectomy wound. Background Technology

[0002] In clinical practice, thyroid nodules, thyroid tumors, and other thyroid lesions are often treated with thyroid lesion resection combined with neck lymph node dissection. This type of surgery requires extensive dissection of the subcutaneous flap in the anterior neck region, resulting in a wide surgical wound. Postoperatively, large subcutaneous cavities are easily formed between the skin and deep muscles and glandular tissues. Furthermore, the dense distribution of blood vessels and lymphatic vessels in the neck increases the risk of postoperative bleeding and exudation. Improper postoperative care can easily lead to complications such as subcutaneous hematoma, subcutaneous effusion, incision infection, and poor wound healing. In severe cases, hematoma compression of the airway can endanger the patient's life. To avoid various postoperative complications and accelerate wound tissue adhesion and healing, continuous and uniform pressure bandaging is required for thyroid surgery. External pressure effectively closes the postoperative subcutaneous cavities, compresses minor bleeding points, reduces bleeding and exudation, restricts neck soft tissue movement, reduces incision traction damage, inhibits excessive local tissue proliferation, and provides a stable recovery environment for wound healing.

[0003] Currently, postoperative pressure care in clinical practice mainly involves applying sterile gauze to the wound, combined with elastic bandages and medical tape for wrapping, to achieve dressing fixation and wound pressure; or using specialized pressure support devices. These devices often employ a fixed neck ring structure, applying pressure to the neck wound area by placing a pressure pad of a fixed shape inside the neck ring. However, in actual clinical application, the pressure application method is uncontrollable, the pressure adjustment is inflexible, and it is difficult to adjust the pressure in real time according to different parts of the neck and the patient's activity level; moreover, it is difficult to conform to the contours of different patients, as the contours of different patients' necks vary greatly, making it impossible to closely conform to the physiological curve of the neck, resulting in uneven pressure distribution. Summary of the Invention

[0004] The present invention aims to provide a pressure support device for post-thyroidectomy wound, which solves the problems of uncontrollable pressure, inflexible pressure adjustment, difficulty in adjusting pressure in real time according to different parts of the neck and the patient's activity, and inability to closely fit the physiological curve of the neck, resulting in uneven pressure distribution.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A pressure support device for post-thyroidectomy wounds includes an adhesive component and a pressure component. The pressure component includes a base shell with fixing straps connected to both sides. A rotating shaft is rotatably connected inside the base shell, and an adjustment knob fixedly connected to the rotating shaft on the outside of the base shell. A gear is fixedly connected to the rotating shaft. A rack is slidably connected inside the base shell along the height direction, meshing with the gear. One end of the rack is connected to a pressure pad. The base shell is provided with a fixing component to restrict the rotation of the rotating shaft. The adhesive component includes an air bladder and an inflation component. The air bladder is connected to the bottom of the pressure pad, and the inflation component is connected to the air bladder. Rotating the adjustment knob causes the rack to slide along the length of the rack, moving the pressure pad and the air bladder.

[0007] Furthermore, the inflation component is an air pump, the airbag is connected to an air tube, the air tube is equipped with a valve, and the inflation end of the air pump is detachably connected to the valve.

[0008] Furthermore, the inflation assembly includes an inflation cylinder and a rack two disposed inside the base shell; the inflation cylinder is fixedly connected to the base shell, the rack two is slidably connected to the base shell along the height direction, the rack two meshes with the gear, and the rack one and rack two are respectively located on both sides of the gear; the inflation rod of the inflation cylinder is connected to the rack two, and the air inlet and outlet ends of the inflation cylinder are connected to the airbag.

[0009] Furthermore, the inflation assembly includes an inflation cylinder, a rack three, and a limiting assembly disposed inside the base shell; the inflation cylinder is fixedly connected to the base shell, the rack three is slidably connected to the base shell along the height direction, the rack three meshes with the gear, and the rack one and rack three are respectively located on both sides of the gear; the inflation rod of the inflation cylinder is connected to the rack three, and the air inlet and outlet ends of the inflation cylinder are connected to the airbag; the limiting assembly is used to restrict the rack three from sliding unidirectionally toward the inflation cylinder; and the gear is an incomplete gear; when the adjustment knob is rotated, the gear first drives the rack three to slide toward the inflation cylinder until the transmission between the gear and the rack three is interrupted, inflation is completed, and the rack three is fixed under the action of the limiting assembly; the gear then drives the rack one to slide downward, causing the airbag to fit tightly against the neck contour and apply pressure to the wound.

[0010] Furthermore, the limiting component includes a ratchet rack connected to the rack, a connecting block connected to the base shell, a pawl rotatably connected to the connecting block and cooperating with the ratchet rack, and a spring provided between the pawl and the connecting block, one end of the spring being connected to the connecting block and the other end of the spring being connected to the pawl; the base shell is provided with a through groove corresponding to the position of the pawl.

[0011] Furthermore, the pawl is connected to a screw, the end of the screw away from the pawl passes through the through groove and is located outside the base shell, and the screw is threadedly connected to a locking nut assembly.

[0012] Furthermore, the airbag is connected to several pressure sensors, which establish a signal connection with a mobile phone or computer via wireless communication.

[0013] Furthermore, the adjustment knob is connected to a pointer, and the base shell has scale lines along the circumference of the adjustment knob.

[0014] Furthermore, the rack is connected to a U-shaped slide rail, and the base shell is provided with a U-shaped slide groove, and the slide rail is slidably connected in the slide groove.

[0015] Furthermore, the fixing straps include two neck straps and two shoulder straps. The free ends of the two neck straps are detachably connected by Velcro or snap fasteners, and the free ends of the two shoulder straps are detachably connected by Velcro or snap fasteners.

[0016] The principles and beneficial effects of the technical solution are as follows:

[0017] 1. The present invention provides a pressure support device for post-thyroidectomy wound, comprising an adhesive component and a pressure component. The adhesive component is used to adhere to the wound on the patient's neck to conform to the physiological curve of the neck, thereby ensuring uniform pressure distribution. The pressure component is used to apply pressure to the wound, and the pressure adjustment method is flexible, allowing adjustment of pressure according to different parts of the neck and the patient's activity. Specifically, the pressure component includes a base shell, a fixing strap connected to the base shell, a rotating shaft rotatably connected inside the base shell, a gear and an adjustment knob connected to the rotating shaft, and a rack slidably connected inside the base shell that meshes with the gear, the rack being connected to a pressure pad. The adhesive component includes an air bladder and an inflation component, the air bladder being connected to the bottom of the pressure pad, and the inflation component being connected to the air bladder. In use, the device is secured to the corresponding position of the surgical wound on the patient's neck using the fixing straps, so that the airbag under the pressure pad is directly facing the wound area. First, the inflation component is activated to inflate the airbag with low-pressure gas. Then, the adjustment knob on the outside of the base shell is rotated to drive the rotating shaft to rotate synchronously. The gear drives the rack to slide downwards, and the rack drives the pressure pad and airbag to move downwards as a whole, gradually increasing the pressure on the wound. The operator can steplessly rotate the adjustment knob to adjust the downward stroke. After the pressure is adjusted, the rotating shaft is fixed using the fixing component. Alternatively, air can be supplied to the airbag while the adjustment knob is rotated to drive the rack to push the airbag downwards, simultaneously completing the airbag inflation and mechanical downward action.

[0018] In other words, using a rack and pinion transmission as the core pressure regulating structure, continuous stepless adjustment of the pressurization stroke is achieved, making the pressurization method controllable and the pressure adjustment flexible. It can adjust the pressure in real time according to the different neck sizes of patients and the postoperative recovery stage. The pressurization actuator is equipped with an inflatable flexible airbag to conform to the physiological curve of the neck, ensuring uniform pressure distribution. Two pressurization modes are suitable for different postoperative scenarios. The pre-inflation and subsequent pressurization method utilizes low-pressure inflation to pre-deform the airbag (the airbag is in a low-pressure state, so that it can easily deform after pressurization), adapting it to the neck in advance and eliminating gaps between the rigid pressure pad and the skin, avoiding localized hard compression caused by subsequent pressure. The pressure relief is suitable for patients in the recovery period with initial wound healing and low tolerance. The simultaneous inflation and depressurization operation mode can fill the pressure gaps formed by the neck's unevenness during the inflation process, quickly and evenly applying pressure to the entire wound surface, significantly shortening the pressure adjustment and adaptation time. It is suitable for acute patients with high postoperative bleeding risk who need rapid pressure to stop bleeding. The airbag itself has adaptive deformation capability, which can completely conform to the physiological curve of the human neck, so that the pressure is evenly distributed throughout the surgical wound, fully compacting the subcutaneous residual cavity, reducing the probability of bleeding, effusion, and hematoma. At the same time, the flexible cushioning effect of the airbag can disperse the squeezing force, avoid skin damage caused by local high pressure, and significantly improve the patient's wearing comfort.

[0019] 2. The present invention provides a post-thyroidectomy wound pressure support device, wherein the inflation component is an air pump. In use, the air outlet of the air pump is connected to the tracheal valve, the valve is opened and the air pump is started to deliver gas into the airbag to complete the inflation operation. After inflation is completed, the valve is closed, the air pump and the valve are separated, and subsequent mechanical pressurization can be completed independently through a gear and rack mechanism, or the air pump can be continuously connected to the valve to maintain air supply, and the pressurization operation can be performed by rotating the adjustment knob simultaneously. The inflation flow is controllable and the inflation speed is fast. The detachable air pump can realize multiple uses in one machine. The valve provided can close the air passage after inflation, which can flexibly adapt to the operation mode of inflation first and pressurization later. By relying on low-pressure inflation to pre-deform the airbag to fit the curvature of the neck, the gap between the rigid pressure pad and the skin is eliminated in advance, which is more suitable for patients in the recovery period when the wound is initially healing and the skin tolerance is weak. Alternatively, the inflation assembly can be an inflation cylinder linked to rack one and gear. The inflation cylinder is fixedly connected to the base shell, rack two meshes with the gear and is slidably connected to the base shell, and rack one and rack two are located on opposite sides of the gear. The inflation rod is connected to rack two, and the air inlet and outlet ends of the inflation cylinder are connected to the airbag. In use, the gear drives rack one to slide downwards while simultaneously driving rack two to slide upwards in the opposite direction. Rack two pushes the inflation rod upwards, inflating the airbag and pressurizing the pressure pad simultaneously. In other words, rack one pushes the pressure pad downwards to simultaneously apply mechanical pressure, while rack two pulls the inflation rod of the air cylinder upwards to supply air to the bladder. No external inflation equipment is needed, simplifying the operation. It can simultaneously complete both inflation and pressurization, filling pressure gaps created by the uneven physiological structures of the neck during continuous bladder expansion. This allows for rapid and uniform pressure application across the entire wound surface, making it suitable for acute patients with a high risk of postoperative wound bleeding who require rapid pressure for hemostasis. Furthermore, as the pressure pad gradually presses down to conform to the neck wound, the bladder can synchronously and dynamically inflate and deform. This device adapts to the uneven contours of the neck in real-time with the pressure application, dynamically filling gaps in the fit. Compared to a step-by-step operation mode, it effectively reduces gaps and pressure blind spots, resulting in higher overall fit precision. This allows the airbag to fit tightly and evenly throughout the entire surgical wound and surrounding neck curves, significantly improving the fit and pressure uniformity of the neck contour. It better compacts subcutaneous residual cavities, reducing the risk of postoperative bleeding, fluid accumulation, and hematoma. Simultaneously, it effectively alleviates discomfort such as skin pressure injuries and swallowing pain caused by local high-pressure compression, significantly improving patient comfort and postoperative pressure care effectiveness. Furthermore, this structure requires no external inflation equipment, simplifying accessories and simplifying operation. It eliminates the need for manual step-by-step control of inflation and pressure procedures, enabling rapid and uniform pressure adaptation of the wound. This makes it suitable for clinical scenarios requiring rapid and uniform hemostatic pressure during the acute phase after thyroid surgery.

[0020] 3. The present invention provides a pressure support device for post-thyroidectomy wound, wherein the inflation component may further consist of an inflation cylinder, a rack three, and a limiting component. The gear is an incomplete gear, and rack three meshes with the gear. Rack one and rack three are located on opposite sides of the gear, respectively. The inflation rod is connected to rack three, and the air inlet and outlet of the inflation cylinder are connected to the airbag. The limiting component includes a ratchet rack connected to rack three, and a pawl that cooperates with the ratchet rack is rotatably connected to the connecting block. A spring is provided between the pawl and the connecting block. In use, rotating the shaft causes the toothed section of the gear to mesh with rack three first, driving rack three to slide towards the inflation cylinder until the transmission between the gear and rack three is interrupted, inflation is complete, the inflation rod reaches its limit position, and the pawl and spring restrict rack three from sliding downward to fix the inflation rod. The toothed section of the gear then meshes with rack one, driving rack one to slide downward, causing the airbag to fit tightly against the neck contour and apply pressure to the wound.

[0021] In other words, relying on the time-sharing meshing characteristics of incomplete gears, the inflation stroke and the pressurization stroke do not interfere with each other and are independently controllable. This ensures the stability of the pre-inflation of the airbag and allows for the control of the subsequent pressure stroke of the wound. It can not only effectively compact the subcutaneous residual cavity and reduce the probability of bleeding, effusion and hematoma after thyroid surgery, but also avoid local stress concentration and reduce adverse reactions such as skin pressure injury by using a uniform and stable flexible pressurization method. Moreover, no additional manual operation is required, and the structure is compact and reliable in operation. At the same time, the one-way self-locking structure composed of the ratchet rack, spring and pawl does not require manual locking and reset. It can automatically lock the rack in three positions after inflation to avoid insufficient air volume in the airbag caused by the rebound of the inflation rod.

[0022] In addition, the pawl is connected to a screw, which passes through a slot and is located outside the base shell. The screw is threadedly connected to a locking nut assembly, which can abut against the screw, achieving externally controllable adjustment and rigid locking of the pawl's working state. Tightening the nut assembly further locks the inflation rod, and loosening the locking nut assembly releases the rigid lock on the screw and pawl. At this time, the pawl can swing normally, smoothly pushing the rack to slide in three opposite directions, driving the inflation cylinder to retract and release air, conveniently completing the airbag depressurization and reset operation. This facilitates repeated adjustment and secondary adaptation of the device. The external screw and locking nut assembly achieve a dual function of automatic elastic one-way locking and manual rigid locking and active reset, ensuring the locking stability of the inflation structure during long-term postoperative wear, further ensuring that the airbag's fit shape and pressure benchmark remain constant, and ensuring uniform, continuous, and effective wound pressure.

[0023] 4. This invention provides a pressure support device for post-thyroidectomy wound treatment. The air bladder is connected to several pressure sensors, which establish a signal connection with a mobile phone or computer via wireless communication. The pressure sensors can detect pressure in real time and upload the data to the mobile phone or computer, providing feedback on the real-time pressure value for timely adjustment. Additionally, an adjustment knob is connected to a pointer, and the base shell has scale lines to visually display the distance the pressure pad has moved downwards. A rack is connected to a U-shaped slide rail, and the base shell has a U-shaped groove. The slide rail and groove serve as guides and limiters. The fixation straps include two neck straps and two back straps. The neck straps are fixed to the patient's neck, and the back straps are fixed to the patient's shoulders or back, forming a double fixation structure for the neck and shoulders / back. The device effectively distributes the overall load, making it more secure and comfortable to wear. It effectively prevents the device from shifting or the pressure position from deviating during the patient's daily activities, ensuring continuous and stable pressure application. Furthermore, the free ends of the two neck straps and the two back straps are detachably connected by Velcro or snap fasteners, making operation convenient. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a pressure support device for a thyroid surgery wound in Embodiment 1 of the present invention;

[0025] Figure 2 This is a bottom view of a thyroid surgery wound pressure support device according to Embodiment 1 of the present invention;

[0026] Figure 3 for Figure 2 Sectional view of AA;

[0027] Figure 4 for Figure 3 Enlarged view of point C in the middle;

[0028] Figure 5 This is a front view of a post-thyroidectomy wound pressure support device in Example 1;

[0029] Figure 6 for Figure 5 Sectional view of BB;

[0030] Figure 7 This is a cross-sectional view of a thyroid surgery wound pressure support device according to Embodiment 2 of the present invention;

[0031] Figure 8 This is a cross-sectional view of a thyroid surgery wound pressure support device in Embodiment 3 of the present invention.

[0032] The names of the corresponding labels in the attached diagram are:

[0033] 1. Base shell; 2. Neck strap; 3. Back strap; 4. Shaft; 5. Gear; 6. Rack 1; 7. Air tube; 8. Valve; 9. Pressure pad; 10. Airbag; 11. Pressure sensor; 12. Slide groove; 13. Slide rail; 14. Rack 2; 15. Inflation cylinder; 16. Inflation rod; 17. Rack 3; 18. Ratchet; 19. Connecting block; 20. Pawl; 21. Spring; 22. Screw; 23. Through groove; 24. Locking nut assembly; 25. Pointer; 26. Scale line; 27. Fixing assembly; 28. Adjustment knob. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0035] See Figures 1 to 6A pressure support device for post-thyroidectomy wounds includes an adhesive component and a pressure component. The pressure component includes a base shell 1, with fixing straps connected to both sides of the base shell 1. Specifically, the fixing straps include two neck straps 2 and two back straps 3. The free ends of the two neck straps 2 are detachably connected by Velcro or snap fasteners, and the free ends of the two back straps 3 are detachably connected by Velcro or snap fasteners. A rotating shaft 4 is rotatably connected inside the base shell 1. An adjustment knob 28 located on the outside of the base shell 1 is fixedly connected to the rotating shaft 4. The adjustment knob 28 can be connected to a pointer 25. The base shell 1 has scale lines 26 along the circumference of the adjustment knob 28. A gear 5 is fixedly connected to the rotating shaft 4. A rack 6 is slidably connected inside the base shell 1 along the height direction. Specifically, the rack 6 is connected to a U-shaped slide rail 13. The base shell 1 has a U-shaped slide groove 12, and the slide rail 13 is slidably connected within the slide groove 12. Rack 6 meshes with gear 5. One end of rack 6 is connected to pressure pad 9, which may have an antibacterial coating. The base shell 1 is provided with a fixing component 27 to restrict the rotation of shaft 4. The fixing component 27 may be a locking nut assembly or an elastic clamp. When it is necessary to rotate shaft 4, the elastic clamp may be removed or the locking nut assembly may be screwed on. The fitting assembly includes airbag 10 and an inflation assembly. The airbag 10 may be made of medical TPU. The airbag 10 is connected to the bottom of pressure pad 9. The inflation assembly is connected to airbag 10. In addition, several pressure sensors 11 may be connected to the outside of airbag 10. The pressure sensors 11 establish a signal connection with a mobile phone or computer via wireless communication. The pressure range may be 10-40 mmHg. If the pressure exceeds the range, it may be adjusted. By rotating the adjustment knob 28, rack 6 drives pressure pad 9 and airbag 10 to slide along the length of rack 6. In this embodiment, the inflation assembly includes an inflation cylinder 15, a rack 17, and a limiting assembly disposed inside the base shell 1. The inflation cylinder 15 is fixedly connected to the base shell 1, and the rack 17 is slidably connected to the base shell 1 along the height direction via a U-shaped guide groove and a U-shaped guide block. The rack 17 meshes with a gear 5, wherein the gear 5 is an incomplete gear 5. The rack 6 and the rack 17 are located on opposite sides of the gear 5. The inflation rod 16 of the inflation cylinder 15 is connected to the rack 17, and the air inlet and outlet ends of the inflation cylinder 15 are connected to the airbag 10. The limiting assembly is used to restrict the rack 17 from sliding unidirectionally toward the inflation cylinder 15. Specifically... The limiting component includes a ratchet 18 connected to the rack 17, a connecting block 19 fixedly connected to the base shell 1, a pawl 20 rotatably connected to the connecting block 19 and cooperating with the ratchet 18, and a spring 21 between the pawl 20 and the connecting block 19, one end of the spring 21 being connected to the connecting block 19 and the other end of the spring 21 being connected to the pawl 20; a through groove 23 is provided on the base shell 1 corresponding to the position of the pawl 20, and in order to further increase the limiting effect on the inflation rod 16, a screw 22 is connected to the pawl 20, the end of the screw 22 away from the pawl 20 passing through the through groove 23 and located outside the base shell 1, and the screw 22 is threadedly connected to a locking nut assembly 24.Rotate the adjustment knob 28. Gear 5 first drives rack 3 17 to slide towards the direction of the air cylinder 15 until the transmission between gear 5 and rack 3 17 is interrupted, and inflation is completed. Rack 3 17 is fixed under the action of the limiting component. Gear 5 then drives rack 1 6 to slide downward, causing the airbag 10 to fit tightly against the neck contour and apply pressure to the wound.

[0036] The specific implementation process is as follows:

[0037] The device is secured to the surgical wound on the patient's neck using a fixing strap, with the airbag 10 below the pressure pad 9 facing the wound area. Rotating the adjustment knob 28 on the outside of the base shell 1 causes the rotating shaft 4 to rotate synchronously. The toothed section of the gear 5 first engages with the rack 17, driving the rack 17 to slide towards the air cylinder 15 until the transmission between the gear 5 and the rack 17 is interrupted, completing the inflation. The inflation rod 16 reaches its limit position, and the pawl 20 and spring 21 restrict the rack 17 from sliding downward. Tightening the locking nut assembly 24 further restricts the position of the pawl 20, fixing the inflation rod 16. The toothed section of the gear 5 then engages with the rack 6, driving the rack 6 to slide downward, causing the airbag 10 to fit tightly against the neck contour and apply pressure to the wound. When the pressure reaches a suitable value, the rotating shaft 4 is locked using the fixing assembly 27.

[0038] Example 2

[0039] See Figures 1 to 7 The difference between this embodiment and embodiment 1 is that: gear 5 is a complete gear; the inflation component is an air pump; air bag 10 is connected to air pipe 7; air pipe 7 is equipped with valve 8; and the inflation end of the air pump is detachably connected to valve 8.

[0040] The specific implementation process is as follows:

[0041] The device is secured to the surgical wound on the patient's neck using a fixing strap, with the airbag 10 below the pressure pad 9 facing the wound area. Low-pressure gas is then pumped into the airbag 10 using an air pump. The valve 8 is closed, and the adjustment knob 28 on the outside of the base shell 1 is rotated to drive the rotating shaft 4 to rotate synchronously. The gear 5 drives the rack 6 to slide downwards, and the rack 6 synchronously drives the pressure pad 9 and the airbag 10 to move downwards as a whole, gradually increasing the pressure on the wound. After the pressure is increased to a suitable level, the rotating shaft 4 is fixed using the fixing component 27.

[0042] Example 3

[0043] The difference between this embodiment and Embodiment 1 is as follows:

[0044] See Figures 1 to 6 and Figure 8In this embodiment, the inflation assembly of the present embodiment comprises an inflation cylinder 15 and a second rack 14 arranged inside the base shell 1; the inflation cylinder 15 is fixedly connected to the base shell 1, the second rack 14 is slidably connected to the base shell 1 along the height direction, the base shell 1 is provided with a "convex"-shaped guide groove, the second rack 14 is connected with a guide member, and the guide member is slidably connected in the guide groove; the second rack 14 is meshed with the gear 5, the gear 5 is a full gear, and the first rack 6 and the second rack 14 are respectively located on two sides of the gear 5; the inflation rod 16 of the inflation cylinder 15 is connected with the second rack 14, and the gas inlet and outlet end of the inflation cylinder 15 is connected with the airbag 10.

[0045] The specific implementation process is as follows:

[0046] The device is bound to the position corresponding to the surgical incision on the patient's neck by using a fixing strap, so that the airbag 10 below the pressure pad 9 is directly facing the incision area. The adjusting knob 28 on the outer side of the base shell 1 is rotated to drive the rotating shaft 4 to rotate synchronously. The gear 5 drives the first rack 6 to slide downward while reversely driving the second rack 14 to slide upward. The second rack 14 pushes the inflation rod 16 to move upward to inflate the interior of the airbag 10, so that the inflation of the airbag 10 and the pressurization of the pressure pad 9 are performed synchronously, and the pressurization force on the incision is gradually increased. After the pressure is adjusted to a suitable value, the rotating shaft 4 is fixed by the fixing assembly 27.

[0047] Among them, the gear 5 and rack transmission is used as the core pressure regulating structure to realize continuous stepless regulation of the pressurization stroke, making the pressurization mode controllable and the pressure adjustment flexible, and the pressurization force can be adjusted in real time according to the neck thickness of different patients and the postoperative recovery stage. The pressurization execution end is equipped with the inflatable flexible airbag 10 to fit the physiological curve of the neck, so that the pressure distribution is uniform. The two pressurization modes are respectively adapted to different postoperative scenarios. Among them, the operation mode of inflating first and then pressurizing can make the airbag 10 undergo flexible deformation in advance by means of low-pressure inflation, adapt to the neck in advance, eliminate the gap between the rigid pressure pad 9 and the skin, avoid the tender pain caused by local hard extrusion generated by subsequent pressing, and is suitable for patients in the recovery period with initially healed incisions and weak tolerance. The operation mode of synchronous inflation and pressing can fill the pressurization gap formed by the unevenness of the neck in real time during the expansion process of the airbag 10, quickly complete uniform pressurization over the entire wound surface, greatly shorten the pressure regulation adaptation time, and is suitable for patients in the acute stage with high risk of postoperative bleeding and requiring rapid pressurization to stop bleeding. The airbag 10 itself has adaptive deformation capability, can fully fit the physiological curve of the human neck, make the pressure evenly distributed on the entire surgical wound surface, fully compact the subcutaneous residual cavity, reduce the occurrence probability of bleeding, effusion and hematoma. At the same time, the flexible buffering effect of the airbag 10 can disperse the extrusion force, avoid skin damage caused by local high pressure, and significantly improve the wearing comfort of the patient.

[0048] The inflation component is an air pump with controllable inflation flow and fast inflation speed. The detachable air pump can achieve multiple uses in one machine. The valve 8 can close the air passage after inflation. It can flexibly adapt to the operation mode of inflation first and then pressurization. By relying on low-pressure inflation, the airbag 10 is deformed to fit the curvature of the neck in advance, eliminating the gap between the rigid pressure pad 9 and the skin in advance. It is more suitable for patients in the recovery period with initial wound healing and weak skin tolerance.

[0049] In addition, the inflation component consists of an air cylinder 15 and a rack 14. The rack 16 pushes the pressure pad 9 downward to achieve simultaneous mechanical pressurization, while the rack 2 14 pulls the air cylinder 15 upward to inflate the air rod 16 to supply air to the airbag 10. No additional external inflation equipment is required, making the operation process simpler. It can simultaneously complete the inflation and pressurization processes, and fill the pressure gaps formed by the concave and convex physiological structures of the neck in real time during the continuous expansion of the airbag 10, quickly achieving uniform pressure on the entire wound surface. This is suitable for patients in the acute phase with a high risk of postoperative wound bleeding who require rapid pressure to stop bleeding. Furthermore, as the pressure pad 9 gradually presses down to conform to the neck wound, the airbag 10... The airbag 10 can synchronously and dynamically inflate and deform, adapting to the uneven physiological contours of the neck in real time with the pressure application. It dynamically fills gaps in the fit, effectively reducing gaps and pressure blind spots compared to a step-by-step operation mode. This results in higher overall fit precision, allowing the airbag 10 to fit tightly and evenly throughout the entire surgical wound and surrounding neck curves. This significantly improves the fit and pressure uniformity of the neck contour, better compacting subcutaneous residual cavities and reducing the risk of postoperative bleeding, effusion, and hematoma. It also effectively alleviates discomfort such as skin pressure injuries caused by local high-pressure compression, significantly improving patient comfort and postoperative pressure care. Furthermore, this structure requires no external inflation equipment, has simplified accessories, and is easy to operate. It eliminates the need for manual step-by-step control of inflation and pressure processes, enabling rapid and uniform pressure adaptation of the wound. This makes it suitable for clinical scenarios requiring rapid and uniform hemostasis and pressure during the acute phase after thyroid surgery.

[0050] The inflation assembly can also be an inflation cylinder 15, rack 3 17, and a limiting assembly. Relying on the time-sharing meshing characteristics of the incomplete gear 5, the inflation stroke and the pressurization stroke do not interfere with each other and are independently controllable. This ensures the stability of the pre-inflation of the airbag 10 and can also regulate the subsequent pressure stroke of the wound. It can not only effectively compact the subcutaneous residual cavity and reduce the probability of bleeding, effusion, and hematoma after thyroid surgery, but also avoid local stress concentration and reduce adverse reactions such as skin pressure injury by applying uniform and stable flexible pressure. Moreover, no additional manual operation is required, and the structure is compact and reliable in operation. At the same time, the one-way self-locking structure formed by the rack 18, spring 21, and pawl 20 does not require manual locking and reset. It can automatically lock the position of rack 3 17 after inflation and avoid insufficient air volume in the airbag 10 caused by the rebound of the inflation rod 16.

[0051] Furthermore, by tightening the locking nut assembly 24, the inflation rod 16 is further locked. By loosening the locking nut assembly 24, the rigid locking of the screw 22 and the pawl 20 is released. At this time, the pawl 20 can swing normally, which can smoothly push the rack 17 to slide in the opposite direction, causing the inflation cylinder 15 to retract and release air, thus conveniently completing the depressurization and reset operation of the airbag 10. This facilitates repeated adjustment and secondary adaptation of the device. The external screw 22 and the locking nut assembly 24 realize the dual functions of automatic elastic one-way locking and manual rigid locking and active reset. This not only ensures the locking stability of the inflation structure during long-term postoperative wear, but also ensures that the fit shape and pressure reference of the airbag 10 remain constant, ensuring uniform, continuous and effective pressure on the wound.

[0052] The pressure sensor 11 can detect pressure in real time and upload the data to a mobile phone or computer, and can also provide feedback on the real-time pressurization value for timely adjustment of the pressurization pressure. The slide rail 13 and slide groove 12 serve as guides and limiters. The fixing straps include two neck straps 2 and two back straps 3. The neck straps 2 are fixed to the patient's neck, and the back straps 3 are fixed to the patient's shoulders or back, forming a double fixing structure for the neck, shoulders, and back. This effectively distributes the overall load of the device, making the device more stable and fit, effectively preventing the device from shifting or the pressurization position from deviating during the patient's slight daily activities, and ensuring continuous stability during the pressurization process; moreover, the free ends of the two neck straps 2 and the two back straps 3 are detachably connected by Velcro or snap fasteners, making operation convenient.

[0053] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific technical solutions or characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A pressure support device for post-thyroidectomy wound, characterized in that, The assembly includes a bonding component and a pressurizing component; the pressurizing component includes a base shell (1), with fixing straps connected to both sides of the base shell (1), a rotating shaft (4) rotatably connected inside the base shell (1), an adjusting knob (28) fixedly connected to the outside of the base shell (1) on the rotating shaft (4), a gear (5) fixedly connected to the rotating shaft (4), and a rack (6) slidably connected inside the base shell (1) along the height direction, the rack (6) meshing with the gear (5). One end of the rack (6) is connected to a pressure pad (9); the base shell (1) is provided with a fixing component (27) to restrict the rotation of the rotating shaft (4); the fitting component includes an airbag (10) and an inflation component, the airbag (10) is connected to the bottom of the pressure pad (9), and the inflation component is connected to the airbag (10); by rotating the adjustment knob (28), the rack (6) drives the pressure pad (9) and the airbag (10) to slide along the length direction of the rack (6).

2. The postoperative pressure support device for thyroidectomy wounds according to claim 1, characterized in that, The inflation component is an air pump, the air bag (10) is connected to an air pipe (7), the air pipe (7) is provided with a valve (8), and the inflation end of the air pump is detachably connected to the valve (8).

3. The postoperative pressure support device for thyroidectomy wounds according to claim 1, characterized in that, The inflation assembly includes an inflation cylinder (15) and a rack (14) disposed inside the base shell (1); the inflation cylinder (15) is fixedly connected to the base shell (1), the rack (14) is slidably connected to the base shell (1) along the height direction, the rack (14) meshes with the gear (5), and the rack (6) and the rack (14) are respectively located on both sides of the gear (5); the inflation rod (16) of the inflation cylinder (15) is connected to the rack (14), and the air inlet and outlet ends of the inflation cylinder (15) are connected to the airbag (10).

4. The postoperative pressure support device for thyroidectomy wounds according to claim 1, characterized in that, The inflation assembly includes an inflation cylinder (15), a rack three (17), and a limiting assembly disposed inside the base shell (1); the inflation cylinder (15) is fixedly connected to the base shell (1), the rack three (17) is slidably connected to the base shell (1) along the height direction, the rack three (17) meshes with the gear (5), and the rack one (6) and rack three (17) are respectively located on both sides of the gear (5); the inflation rod (16) of the inflation cylinder (15) is connected to the rack three (17), and the air inlet and outlet ends of the inflation cylinder (15) are connected to the airbag (10). The limiting component is used to restrict the rack three (17) from sliding unidirectionally toward the air cylinder (15); and the gear (5) is an incomplete gear (5); when the adjustment knob (28) is turned, the gear (5) first drives the rack three (17) to slide toward the air cylinder (15) until the transmission between the gear (5) and the rack three (17) is interrupted, the inflation is completed, and the rack three (17) is fixed under the action of the limiting component; the gear (5) then drives the rack one (6) to slide downward, causing the airbag (10) to fit tightly against the neck contour and apply pressure to the wound.

5. The postoperative pressure support device for thyroidectomy wounds according to claim 4, characterized in that, The limiting assembly comprises a ratchet rack (18) connected to the third rack (17), the base shell (1) is connected with a connecting block (19), the connecting block (19) is rotatably connected with a pawl (20) that cooperates with the ratchet rack (18), a spring (21) is arranged between the pawl (20) and the connecting block (19), one end of the spring (21) is connected to the connecting block (19), and the other end of the spring (21) is connected to the pawl (20); a through groove (23) is opened in the base shell (1) at a position corresponding to the pawl (20).

6. The postoperative pressure support device for thyroidectomy wounds according to claim 5, characterized in that, The pawl (20) is connected with a screw rod (22), one end of the screw rod (22) away from the pawl (20) passes through the through groove (23) and is located outside the base shell (1), and the screw rod (22) is connected with a lock nut assembly (24) through threads.

7. The postoperative pressure support device for thyroidectomy wounds according to claim 1, characterized in that, The air bag (10) is connected with a plurality of pressure sensors (11), and the pressure sensors (11) are in signal connection with a mobile phone or a computer through a wireless communication mode.

8. The postoperative pressure support device for thyroidectomy wounds according to claim 1, characterized in that, The adjusting knob (28) is connected with a pointer (25), and the base shell (1) is provided with scale marks (26) along the circumferential direction of the adjusting knob (28).

9. A pressure support device for post-thyroidectomy wound according to claim 1, characterized in that, The first rack (6) is connected with a "convex"-shaped sliding rail (13), the base shell (1) is provided with a "convex"-shaped sliding groove (12), and the sliding rail (13) is slidably connected in the sliding groove (12).

10. A pressure support device for post-thyroidectomy wound according to claim 1, characterized in that, The fixing strap comprises two neck straps (2) and two shoulder straps (3), the free ends of the two neck straps (2) are detachably connected through a hook and loop fastener or a hidden buckle, and the free ends of the two shoulder straps (3) are detachably connected through a hook and loop fastener or a hidden buckle.

Images