Waistband for pressurizing incision after lumbar surgery

Abstract

The lumbar postoperative incision pressurizing waistband comprises a pressurizing layer and a flexible conducting layer which are arranged up and down, and the other faces, except for the bottom face, of the pressurizing layer are all coated with restraint layers; a heat insulation layer and a heating layer for providing a warming auxiliary function are sequentially arranged on the bottom surface of the flexible conducting layer; the heating layer is electrically connected with a controller used for regulating and controlling the heating temperature of the heating layer, and a temperature sensor capable of feeding back the current temperature of the heating layer to the controller in real time is further arranged in the heating layer; the left side and the right side of the restraint layer are each provided with a fixing band in a sewing mode, each fixing band is detachably connected with a waistband, and the tail ends of the two waistbands are each provided with a hook-and-loop fastener in a sewing mode so that the two waistbands can be connected conveniently. Uniform and controllable vertical pressure is applied to tissues on the two sides of an incision through the inflation pressure of the air bags on the two sides, the pressure can be dynamically adjusted and monitored in real time, meanwhile, the constant-temperature heating function is achieved, incision healing is promoted, and the device is particularly suitable for incision pressurization nursing of a lumbar vertebra postoperative patient.

Description

Technical Field

[0001] This invention relates to the field of clinical medical and nursing equipment technology, specifically to a lumbar spine postoperative incision compression belt. Background Technology

[0002] In recent years, due to population aging, advancements in diagnostic techniques for degenerative spinal diseases, and improvements in surgical techniques, the proportion of lumbar internal fixation and decompression surgery has continued to rise. Posterior open surgery, with its advantages of a short learning curve, sufficient decompression, wide applicability, and reliable results, has become the most commonly used surgical approach in lumbar spine surgery. However, because the surgical incision of the posterior approach is usually located in the midline of the lumbar spine, corresponding to the spinous process region, extensive dissection and prolonged traction of the paraspinal muscles are required during the operation, easily leading to soft tissue injury. Postoperative complications such as edema, hematoma, poor healing, and even infection are common. Furthermore, due to the physiological lordosis of the lumbar spine, a negative pressure cavity can form between the suspended bone structures and the sutured soft tissues when the patient lies supine postoperatively, further aggravating bleeding and hematoma in the surgical area, directly affecting the patient's quality of life and recovery process. Therefore, in clinical practice, pressure bandaging is often used in the early postoperative period of lumbar spine surgery to reduce incision bleeding and prevent infection. Currently, several pressure devices for postoperative lumbar spine incisions have been proposed.

[0003] CN202322515230 discloses a pressure bandaging device for cerebrospinal fluid leakage wounds after lumbar spine surgery. This device features a pressure pad filled with sand or cotton inside an abdominal binder, utilizing the weight of the filling material and the tightening of the abdominal binder to apply local pressure to the incision. This device achieves a certain degree of adaptive fit between the pressure pad and the patient's surgical area. However, the tightness of the abdominal binder and the amount of filling material depend on the operator's experience; too loose and the pressure effect is insufficient, too tight and it may cause patient discomfort, skin pressure injury, or even ischemic necrosis, making quantitative pressure adjustment impossible. Furthermore, the degree of postoperative incision swelling changes over time, and the ideal pressure should be adjusted accordingly, but existing devices cannot dynamically adjust the pressure to adapt to this change. In addition, existing devices generally lack heating functions and temperature monitoring methods, failing to provide thermal assistance to promote local blood circulation and tissue repair. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a lumbar spine postoperative incision compression belt that is comfortable to wear, provides good protection, has controllable and uniform pressure distribution, and also has the functions of heat assistance and monitoring, in light of the above-mentioned existing technology.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: A lumbar spine postoperative incision compression belt includes an upper and lower pressure application layer and a flexible conduction layer. The pressure application layer uses air pressure to apply pressure, and all surfaces of the pressure application layer except the bottom surface are covered with a constraint layer that forces the pressure downwards and directionally. The bottom surface of the flexible conduction layer is provided with a heat insulation layer and a heating layer for providing auxiliary heating function. The heating layer is electrically connected to a controller for adjusting the heating temperature of the heating layer, and the heating layer is also provided with a temperature sensor that can feed back the current temperature of the heating layer to the controller in real time. A fixing strap is sewn on each of the left and right sides of the constraint layer, and each fixing strap is detachably connected to a belt. The ends of the two belts are sewn with Velcro to facilitate connection between the two.

[0006] To optimize the above technical solution, the specific measures also include: The aforementioned pressure layer is made of TPU material and consists of two symmetrical and separated airbags. A longitudinally extending gap is formed between the left airbag on the left and the right airbag on the right, and at least one connecting airway is provided between the left airbag and the right airbag.

[0007] The aforementioned restraint layer is made of high-strength nylon fabric. This restraint layer covers five surfaces of the left airbag (excluding the bottom surface): top surface, left side surface, right side surface, front surface, and rear surface, as well as five surfaces of the right airbag (excluding the bottom surface): top surface, left side surface, right side surface, front surface, and rear surface.

[0008] The aforementioned left airbag is connected to a stainless steel inlet and outlet pipe via a flexible connector, and the inlet and outlet pipe is fixed to one side of the front end face of the restraint layer; an inlet one-way valve is provided at the end of the inlet and outlet pipe, and an outlet valve is installed on the bypass pipe near the end of the inlet and outlet pipe; the right airbag is connected to a pressure display device for displaying airbag pressure via another flexible connector, and the pressure display device is fixed to the other side of the front end face of the restraint layer.

[0009] The aforementioned flexible conductive layer is a single structural layer made of polyurethane soft foam, which covers at least the bottom surface of the left airbag, the bottom surface of the right airbag, and the bottom of the interval area.

[0010] The aforementioned heat insulation layer is made of heat insulation cotton. This heat insulation layer is placed between the heating layer and the flexible conductive layer to prevent the heat of the heating layer from being lost to the flexible conductive layer and the airbag direction.

[0011] The heating layer described above consists of a silicone thermal conductive layer and an electrothermal film embedded in the silicone thermal conductive layer; the upper surface of the silicone thermal conductive layer is formed with an embedding groove, and the electrothermal film is embedded in the embedding groove.

[0012] The aforementioned silicone thermal conductive layer is made of medical-grade silicone with a thickness of 3 mm; the temperature sensor is set in the embedded groove; the electrothermal film and temperature sensor in the heating layer are both electrically connected to the controller.

[0013] The controller is equipped with a display screen and a button set; the button set includes at least a power on / off button, an OK button, a Cancel button, and temperature adjustment buttons + and -.

[0014] The aforementioned fastening strap and waist belt are equipped with buckles to facilitate the connection and separation of the two.

[0015] Compared with existing technologies, the pressure belt of this invention uses pneumatic pressure. Its pressure layer consists of two symmetrical and separated airbags, with a longitudinally extending interval between them. During use, this interval corresponds to the surgical incision, ensuring uniform pressure distribution to the incision area and surrounding tissues. All surfaces of the airbags, except the bottom, are covered with a restraint layer, allowing for more effective downward pressure transmission. The pressure belt also includes a heating layer that provides warmth, promoting local blood circulation and accelerating incision healing. The heating layer is electrically connected to a controller, which also contains a temperature sensor. The temperature sensor provides real-time feedback of the heating layer's temperature to the controller, allowing for setting and automatic adjustment of the heating temperature to achieve constant temperature heating. This invention applies uniform and controllable vertical pressure to the tissues on both sides of the incision through the inflation pressure of the left and right airbags. The pressure can be dynamically adjusted and monitored in real time, while also providing constant temperature heating, promoting incision healing. It is particularly suitable for pressure care of incisions in patients after lumbar spine surgery. Attached Figure Description

[0016] Figure 1 This is an exploded structural diagram of the present invention; Figure 2 This is a schematic diagram of the assembly structure of the pressure layer and the constraint layer of the present invention; Figure 3 This is a schematic diagram of the heating layer of the present invention. Detailed Implementation

[0017] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0018] Figures 1 to 3 This is a schematic diagram of the structure of the present invention.

[0019] The attached diagrams are labeled as follows: Velcro M, restraint layer 1, pressure layer 2, left airbag 21, right airbag 22, interval area 23, connecting airway 24, flexible connector 25, intake and exhaust pipes 26, intake one-way valve 27, exhaust valve 28, pressure display device 29, flexible conductive layer 3, heat insulation layer 4, heating layer 5, silicone thermal conductive layer 51, electric heating film 52, controller 6, display screen 61, button group 62, temperature sensor 7, fixing strap 8, waist belt 9.

[0020] like Figures 1 to 3As shown, this invention discloses a lumbar spine postoperative incision compression belt, which includes an upper and lower pressure application layer 2 and a flexible conductive layer 3. The pressure application layer 2 utilizes inflatable air pressure, which makes it easier to quantify the pressure level and thus allows for better dynamic adjustment based on the patient's incision recovery. Except for the bottom surface, all other surfaces of the pressure application layer 2 are covered with a restraint layer 1, which is made of high-strength nylon fabric. The restraint layer 1 restricts the expansion of the pressure application layer 2 in five directions (upward, left, right, front, and back) during inflation, thereby forcing the airbag to expand only downwards, achieving directional pressure and preventing ineffective pressure diffusion in other directions. The bottom surface of the flexible conductive layer 3 is sequentially provided with a heat insulation layer 4 and a heating layer 5. The heating layer 5 provides a warming auxiliary function to promote local blood circulation and accelerate incision healing. The heat insulation layer 4 is made of heat-insulating cotton, which reduces upward heat transfer. A heat insulation layer 4 is disposed between the heating layer 5 and the flexible conductive layer 3. Its main function is to prevent heat loss from the heating layer 5 to the flexible conductive layer 3 and the airbag direction. The heating layer 5 is electrically connected to a controller 6, and the heating layer 5 also has a temperature sensor 7 that can provide real-time feedback of the current temperature of the heating layer 5 to the controller 6. The controller 6 is used to regulate the heating temperature of the heating layer 5. A fixing strap 8 is sewn onto each of the left and right sides of the restraint layer 1 of this invention. Each fixing strap 8 is detachably connected to a waist belt 9. The ends of both waist belts 9 are sewn with Velcro M for easy connection. The Velcro M has male and female sides. If the male side of the Velcro is sewn onto one side of the waist belt 9, then the female side is sewn onto the other side. The male and female sides of the Velcro are bonded together, making operation simple and allowing for adjustment of tightness according to the patient's body shape.

[0021] In the embodiments, as shown Figure 2 As shown, the pressure layer 2 of this invention is made of TPU material and consists of two symmetrical, separated air bladders. The TPU air bladders have good airtightness and flexibility, generating vertical pressure through inflation to act on the tissues on both sides of the incision. The air bladder on the left side can be referred to as the left air bladder 21, and the air bladder on the right side can be referred to as the right air bladder 22. A longitudinally extending interval 23 is formed between the two air bladders due to their separation. This interval 23 corresponds to the surface projection of the spinous process of the lumbar vertebrae in the patient's posture, i.e., the area where the posterior midline surgical incision of the lumbar spine is located. Of course, those skilled in the art will understand that this interval 23 can also correspond to surgical incisions at other locations; the size of the air bladder and the width of the interval region can be adjusted according to the anatomical location.

[0022] To ensure consistent air pressure between the two airbags and achieve pressure balance on both sides, this invention provides at least one connecting airway 24 between the two airbags. The connecting airway 24 can be a flexible ventilation tube connecting the two airbags. Alternatively, the pressure layer 2 can be a single unit, in which case the two airbags of the pressure layer 2 are fixedly connected through the connecting airway 24.

[0023] In this embodiment, in order to prevent the two airbags from expanding toward the middle, the restraint layer 1 covers the top, left, right, front and rear surfaces of the left airbag 21 (excluding the bottom surface), and the top, left, right, front and rear surfaces of the right airbag 22 (excluding the bottom surface).

[0024] In this embodiment, the left airbag 21 of the present invention is connected to a stainless steel inlet and outlet pipe 26 via a flexible connector 25. The inlet and outlet pipe 26 is fixed to one side of the front end face of the restraint layer 1. An inlet one-way valve 27 is provided at the end of the inlet and outlet pipe 26 for connecting to an external inflatable airbag, facilitating inflation by medical personnel. An outlet valve 28 is installed on a bypass pipe near the end of the inlet and outlet pipe 26. The outlet valve 28 is used to release air and regulate pressure, achieving dynamic pressure adjustment. The right airbag 22 is connected to a pressure display device 29 for displaying airbag pressure via another flexible connector 25. This pressure display device 29 is fixed to the other side of the front end face of the restraint layer 1 and is used to display the air pressure inside the airbag in real time, allowing medical personnel to intuitively understand the current pressure value and avoid excessive or insufficient pressure.

[0025] In this embodiment, the flexible conductive layer 3 of the present invention is a flexible, monolithic structural layer that covers at least the bottom surface of the left airbag 21, the bottom surface of the right airbag 22, and the bottom of the spacer region 23. The flexible conductive layer 3 is made of polyurethane soft foam with a thickness of 15 mm, possessing excellent flexibility and pressure conduction properties. It can evenly transmit the vertical pressure generated by the two airbags to the incision area and the tissues on both sides, avoiding pressure concentration at bony prominences and ensuring effective pressure distribution in the incision area.

[0026] In the embodiments, as shown Figure 3 As shown, the heating layer 5 of the present invention is a composite structure layer, which consists of a silicone thermally conductive layer 51 and an electrothermal film 52 embedded in the silicone thermally conductive layer 51. An embedding groove is formed on the upper surface of the silicone thermally conductive layer 51, and the electrothermal film 52 is embedded in the embedding groove. This allows the heat generated by the electrothermal film 52 to be more evenly distributed on the silicone thermally conductive layer 51, avoiding local overheating.

[0027] In this embodiment, the silicone thermally conductive layer 51 of the present invention is made of medical-grade silicone and has a thickness of 3 mm. The temperature sensor 7 of the present invention is also disposed in the embedded groove formed by the silicone thermally conductive layer 51. The electrothermal film 52 in the heating layer 5 and the temperature sensor 7 are both electrically connected to the controller 6. The controller 6 of the present invention has a main control board inside, which has a main control chip responsible for program calculation and processing. The main control chip can compare and calculate the set heating temperature value with the detected temperature value fed back by the temperature sensor 7 in real time, and then output a control electrical signal to the electrothermal film 52, thereby controlling the start and stop of the heating layer 5 to achieve constant temperature heating.

[0028] The controller 6 of this invention is also equipped with a display screen 61 and a button group 62. The display screen 61 is used to display the current real-time temperature and the operating status when the temperature is set. The button group includes at least a power switch, a confirmation button, a cancel button, and temperature adjustment buttons + and -. The power switch is used to control the power supply. The temperature adjustment buttons + and - are used by the user to set the target heating temperature. Each press of the temperature adjustment button + increases the temperature by one degree, and each press of the temperature adjustment button - decreases the temperature by one degree. After the temperature setting is completed, the user can confirm the setting by pressing the confirmation button, thus putting the controller 6 into working mode. The user can also cancel the working mode of the controller 6 by pressing the cancel button. The controller 6 of this invention can be powered by an external power adapter or by a built-in rechargeable lithium battery, which is charged via a USB interface, enabling wireless and portable use.

[0029] In the embodiments, as shown Figure 1 As shown, the fixing strap 8 and waist belt 9 of the present invention are provided with buckles that allow for easy connection and separation between the two. The buckles of the present invention can be any buckle structure in the prior art that can easily realize the connection and separation of the fixing strap and the waist belt.

[0030] The pressure belt of this invention can evenly transmit pressure to the incision area and the tissues on both sides through the inflation pressure of the left and right air bladders and the flexible conductive layer, which promotes the adhesion of the skin flap to the deep tissues. The pressure can be dynamically adjusted and monitored in real time, and it also has a heating function, which is beneficial to the healing of the patient's surgical incision.

[0031] The advantages of this invention are: 1. The system employs a symmetrical and separated airbag structure, with the intervals corresponding to the surgical incision. The restraint layer covers all five sides of the airbag, with only the bottom side open. In conjunction with the flexible conduction layer, the pressure generated by the airbags on both sides is evenly transmitted to the incision area and the surrounding tissues, avoiding excessive pressure concentration and ensuring that the incision area receives effective and uniform vertical pressure, thus promoting the adhesion of the flap to the deep tissues.

[0032] 2. The left airbag is equipped with an inlet one-way valve and an exhaust valve, and the right airbag is connected to a pressure display device. The left and right airbags are connected through a connecting airway, which can realize quantitative adjustment and real-time monitoring of pressure, and dynamically adjust the pressure intensity according to the degree of postoperative incision swelling.

[0033] 3. The heating layer is a composite structure consisting of an electrothermal film and a silicone thermal conductive layer. The electrothermal film is embedded in the groove of the silicone thermal conductive layer. Together with a temperature sensor and controller, it achieves constant temperature heating, promotes local blood circulation, and accelerates incision healing.

[0034] 4. The buckle structure allows patients to relieve pressure on their lower back without removing the entire belt when lying prone or supine. This avoids the need to repeatedly tear open the abdominal Velcro, making it easier for medical staff to check the incision and change dressings, thus improving ease of use.

[0035] The usage process of this compression belt is as follows: With the patient lying prone, first connect the fixation straps 8 on both sides of the restraint layer 1 to the corresponding waist belt 9 using buckles, and align the heating layer 5 with the surgical incision area of ​​the lower back, so that the interval area 23 corresponds directly above the spinous process. Then, use the Velcro on the waist belt to fix the waist belt on both sides to the patient's lower abdomen, and adjust the tightness appropriately according to the patient's body shape. Next, inflate the left airbag 21 through the one-way inlet valve 27, and the gas enters the right airbag 22 through the connecting airway 24, so that the air pressure in both airbags is equal. The pressure display device 29 displays the pressure inside the airbag in real time, and medical staff can dynamically adjust the pressure according to postoperative needs and the degree of incision swelling by using the inflation volume and deflation valve 28.

[0036] When heat assistance is needed, the target temperature can be set using the + and - temperature adjustment buttons. After confirming with the confirmation button, the controller 6 will control the heating film 52 to heat up, and the heat will be evenly transferred to the cut area through the silicone heat-conducting layer 51. The temperature sensor 7 detects the temperature in real time and feeds it back to the controller 6. The controller 6 controls the on / off state of the heating film 52 based on the deviation between the set temperature and the measured temperature to achieve constant temperature heating.

[0037] When it's necessary to check the incision or change the dressing, the patient does not need to remove the entire belt; simply loosening the buckle releases the pressure on the lower back, making it easier for medical staff to perform the procedure. After the procedure, the buckle is fastened again and the belt is inflated to restore the required pressure.

[0038] The preferred embodiments of the present invention have been described, and various changes or modifications made by those skilled in the art will not depart from the scope of the present invention.

Claims

1. A lumbar spine postoperative incision compression belt, comprising an upper and lower pressure application layer (2) and a flexible conduction layer (3), characterized in that: The pressure layer (2) is pressurized by air pressure, and the pressure layer (2) is covered with a constraint layer (1) that can force the pressure to be applied downward in a directional manner on all surfaces except the bottom surface; the bottom surface of the flexible conductive layer (3) is provided with a heat insulation layer (4) and a heating layer (5) for providing heat auxiliary function. The heating layer (5) is electrically connected to a controller (6) for regulating the heating temperature of the heating layer (5). The heating layer (5) is also provided with a temperature sensor (7) that can feed back the current temperature of the heating layer (5) to the controller (6) in real time; a fixing strap (8) is sewn on both the left and right sides of the constraint layer (1). Each fixing strap (8) is detachably connected to a waist belt (9). The ends of the two waist belts (9) are sewn with Velcro (M) to facilitate the connection between the two.

2. A lumbar spine postoperative incision compression belt according to claim 1, characterized in that: The pressure layer (2) is made of TPU material. The pressure layer (2) consists of two left and right symmetrical and separated airbags. A longitudinally extending gap area (23) is formed between the left airbag (21) on the left side and the right airbag (22) on the right side. At least one air passage (24) is provided between the left airbag (21) and the right airbag (22).

3. A lumbar spine postoperative incision compression belt according to claim 2, characterized in that: The restraint layer (1) is made of high-strength nylon fabric. The restraint layer (1) covers five surfaces of the left airbag (21) except the bottom surface: the top surface, the left side surface, the right side surface, the front surface and the rear surface. It also covers five surfaces of the right airbag (22) except the bottom surface: the top surface, the left side surface, the right side surface, the front surface and the rear surface.

4. A lumbar spine postoperative incision compression belt according to claim 3, characterized in that: The left airbag (21) is connected to a stainless steel air intake and exhaust pipe (26) via a flexible connector (25), and the air intake and exhaust pipe (26) is fixed to one side of the front end face of the restraint layer (1); the end of the air intake and exhaust pipe (26) is provided with an air intake one-way valve (27), and an exhaust valve (28) is installed on the bypass pipe near the end of the air intake and exhaust pipe (26); the right airbag (22) is connected to a pressure display device (29) for displaying airbag pressure via another flexible connector (25), and the pressure display device (29) is fixed to the other side of the front end face of the restraint layer (1).

5. A lumbar spine postoperative incision compression belt according to claim 4, characterized in that: The flexible conductive layer (3) is a single structural layer made of polyurethane soft foam. The flexible conductive layer covers at least the bottom surface of the left airbag (21), the bottom surface of the right airbag (22), and the bottom of the interval area (23).

6. A lumbar spine postoperative incision compression belt according to claim 5, characterized in that: The heat insulation layer (4) is made of heat insulation cotton. The heat insulation layer (4) is disposed between the heating layer (5) and the flexible conductive layer (3) to prevent the heat of the heating layer (5) from being lost to the flexible conductive layer (3) and the airbag direction.

7. A lumbar spine postoperative incision compression belt according to claim 6, characterized in that: The heating layer (5) is composed of a silicone thermal conductive layer (51) and an electrothermal film (52) embedded in the silicone thermal conductive layer (51); the upper surface of the silicone thermal conductive layer (51) is formed with an embedding groove, and the electrothermal film (52) is embedded in the embedding groove.

8. A lumbar spine postoperative incision compression belt according to claim 7, characterized in that: The silicone thermal conductive layer (51) is made of medical-grade silicone with a thickness of 3 mm; the temperature sensor (7) is set in the mounting groove; the electrothermal film (52) in the heating layer (5) and the temperature sensor (7) are both electrically connected to the controller (6).

9. A lumbar spine postoperative incision compression belt according to claim 8, characterized in that: The controller (6) is equipped with a display screen (61) and a button group (62); the button group includes at least a power on / off switch, a confirmation button, a cancel button, and a temperature adjustment button + and a temperature adjustment button -.

10. A lumbar spine postoperative incision compression belt according to claim 9, characterized in that: The fixing belt (8) and waist belt (9) are provided with buckles to facilitate the connection and separation of the two.

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