Multifunctional area block anesthesia body position placement affected limb protector

Abstract

The invention relates to the technical field of child anesthesia auxiliary instruments, and discloses a multifunctional area block anesthesia body position placement affected limb protector, which comprises a soil type throw pillow mechanism for placing a child body position; the soil type bolster mechanism comprises a soil type supporting device, a plurality of belt rings are arranged at the top of a bottom transverse main pipe of the soil type supporting device, a hook-and-loop fastener belt is arranged between every two belt rings in a penetrating mode, and a soil type supporting mechanism is arranged in the soil type supporting device; the headrest mechanism is used for placing the head of the child; and the intelligent dynamic regulation and control system is used for dynamically regulating the headrest mechanism and the soil type supporting mechanism. Trunk-diseased limb supporting is achieved through the bionic curved surface and the intelligent adjustable constraint device, and lumbar vertebra buckling and diseased limb abduction stability are guaranteed; the dynamic air bag system senses body position deviation in real time and adjusts the pressure ratio, and gravity traction damage is avoided; the medical silica gel and dual-redundancy pressure relief design reduces osteopathy compression, and meets the requirements for child skin protection and nerve block operation space.

Description

Technical Field

[0001] The present invention relates to the technical field of children's anesthesia assistance devices, and specifically relates to a multifunctional limb protector for placing the affected limb in regional block anesthesia Background Art

[0002] In children's lower limb fracture surgery, the placement of the intraspinal anesthesia position directly affects the nerve block effect and surgical safety. Most of the current clinical support devices are modified based on the adult anatomical structure, and it is difficult to adapt to the rapidly growing body shape characteristics of obese children, resulting in frequent problems such as insufficient lumbar flexion and deviation of the abduction angle of the affected limb.

[0003] The traditional fixation method relies on manual adjustment of the cotton pad combination, and the body position is prone to sliding during the operation due to muscle relaxation. This not only affects the operation field of vision for anesthesia puncture, but may also cause gravity-induced traction injury to the affected limb. Especially for obese children, the existing support device lacks a dynamic pressure compensation mechanism, and the clinical contradiction between the risk of respiratory depression caused by chest and abdomen compression and the need for body position maintenance is formed. During nerve block operation, the static support structure cannot provide an accurate mechanical fulcrum, and the operator often needs to repeatedly adjust the position of the affected limb, prolonging the anesthesia preparation time and increasing the risk of infection.

[0004] Therefore, a multifunctional limb protector for placing the affected limb in regional block anesthesia is proposed to solve the above problems. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a multifunctional limb protector for placing the affected limb in regional block anesthesia, which solves the problems of easy deviation of the intraspinal anesthesia position and poor support stability of the affected limb during children's lower limb fracture surgery or for obese children.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A multifunctional limb protector for placing the affected limb in regional block anesthesia, comprising: An earthenware-shaped pillow mechanism for placing the child's body position; The earthenware-shaped pillow mechanism includes an earthenware-shaped support, and a plurality of loops are provided at the top of the bottom horizontal main pipe of the earthenware-shaped support. A magic tape is penetrated between the two loops, and an earthenware-shaped support mechanism is arranged inside the earthenware-shaped support; A headrest mechanism for placing the child's head; An intelligent dynamic regulation system for dynamically regulating the headrest mechanism and the earthenware-shaped support mechanism.

[0007] Preferably, the earthenware-shaped support mechanism includes an earthenware-shaped support pipe, the earthenware-shaped support pipe is arranged inside the earthenware-shaped support, a plurality of groups of air bags II are arranged on the outside of the earthenware-shaped support pipe, the plurality of groups of air bags II are connected by connecting bands, the plurality of groups of air bags II are connected by pipelines, and the air supply ends of the pipelines are all connected with a micro air pump II.

[0008] Preferably, the soil-shaped support device is provided with a medical-grade silica gel and an open-cell polyurethane sponge layer from outside to inside, and sponge filler is filled between the soil-shaped support device and the soil-shaped support mechanism.

[0009] Preferably, the headrest mechanism includes a headrest housing, and a plurality of first airbags are arranged on the upper side inside the headrest housing. The plurality of first airbags are connected through a pipeline, wherein the air supply end of the pipeline is connected to a first micro air pump, and the first micro air pump is arranged inside the headrest housing. An insertion port is arranged on the outer side of the headrest housing.

[0010] Preferably, a plug head is arranged at the bottom of the soil-shaped support tube, and the plug head is used for operating the intelligent dynamic regulation system and providing the required power supply.

[0011] Preferably, fixing belts are arranged at the middle vertical top end of the soil-shaped support device and on one side of the headrest housing close to the soil-shaped support device, and the fixing belts are connected by an elastic band.

[0012] Preferably, the intelligent dynamic regulation system includes: A dynamic decision-making unit, based on the formula , where is the trunk tilt angle measured by the IMU, and the duty ratio of the micro air pump is adjusted by a fuzzy PID algorithm; An execution control unit, when , the pressure of the three groups of second airbags (502) on the lumbar and dorsal parts of the T-shaped support device is preferentially increased to 8 kPa, and at the same time, the pressure of the first airbag (202) at the front of the headrest is reduced to 2 kPa; A safety protection unit, when the pressure > 8 kPa or , a double-redundancy pressure relief valve is triggered.

[0013] Preferably, the first airbag has a trapezoidal cross-section, and the surface of the second airbag is provided with concave-convex anti-slip textures.

[0014] Preferably, the steady-state error of the fuzzy PID algorithm is < 0.3 kPa, and the overshoot is < 5%; the fitting error of the bearing surface of all airbags is ≤ ±1.5 mm.

[0015] The present invention provides a multifunctional limb protector for body position placement in regional block anesthesia. It has the following beneficial effects: 1. In view of the special needs of lower limb fracture surgery in obese children, through the coordinated action of an adjustable restraint device, the combination of a magic tape and a belt loop, and an intelligent dynamic airbag system, the support of the trunk and the affected limb is realized. The bionic curved surface design combined with the multi-airbag pressure zoning regulation solves the problem that traditional support devices are difficult to adapt to children of different body types, and while maintaining the standard lumbar flexion body position, ensures the stable abduction of the affected limb, creating an ideal space for nerve block operation.

[0016] 2. The present invention automatically adjusts the pressure ratio between the chest and headrest airbags by means of an intelligent control system that senses the trunk tilt angle in real time. This dynamic compensation mechanism can counteract the unconscious body position sliding of children during the operation. Especially when the muscle tone of obese children is insufficient, by increasing the chest support pressure to form a mechanical fulcrum, it can not only maintain the body position required for spinal anesthesia but also avoid secondary injuries caused by the gravitational traction of the affected limb.

[0017] 3. Considering the characteristics of children's fragile skin and low cooperation, the present invention adopts a combination of a medical silicone surface layer and a non-slip textured airbag, which can reduce the pressure on the bony prominences while enhancing the anti-displacement ability of the body position. The cooperation of the dual-redundancy pressure relief system and the flexible restraint device can not only prevent pressure overload caused by the body shape compression of obese children but also quickly respond to sudden body position changes, ensuring the skin integrity and nerve protection requirements during long-term surgeries. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a perspective view of the present invention; Figure 2 of the present invention Figure 1 is an enlarged schematic view of part A in; Figure 3 is a partial cross-sectional view of the present invention; Figure 4 is a rear view of the present invention; Figure 5 of the present invention Figure 1 is a cross-sectional view of the headrest mechanism in; Figure 6 is a schematic view of the internal structure of the present invention; Figure 7 is a top view of the internal structure of the present invention.

[0019] Among them, 1. Soil-shaped pillow mechanism; 101. Soil-shaped support; 102. Sponge filler; 103. Medical-grade silicone; 104. Open-cell polyurethane sponge layer; 2. Headrest mechanism; 201. Headrest housing; 202. Airbag 1; 203. Micro air pump 1; 204. Plug socket; 205. Magic tape; 206. Belt loop; 4. Fixed belt; 5. Soil-shaped support mechanism; 501. Soil-shaped support tube; 502. Airbag 2; 503. Micro air pump 2; 6. Plug head. DETAILED DESCRIPTION OF THE INVENTION

[0020] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0021] Please refer to the attached Figure 1 - Attachment Figure 7 In an embodiment of the present invention, a multifunctional limb protector for regional block anesthesia position placement is provided, including: a soil-shaped pillow mechanism 1 for placing the child's position; The soil-shaped pillow mechanism 1 includes a soil-shaped support 101. At the top of the bottom horizontal main pipe of the soil-shaped support 101, a plurality of loop tapes 206 are provided. A magic tape 205 passes through between two loop tapes 206. A soil-shaped support mechanism 5 is arranged inside the soil-shaped support 101; Specifically, the soil-shaped pillow mechanism 1 serves as the main support unit. The soil-shaped support 101 adopts a bionic curved surface shape to fit the physiological curve of the child's torso. The loop tapes 206 arranged at the top of the bottom horizontal main pipe and the magic tape 205 form an adjustable restraint device. By changing the penetration length of the magic tape 205, the leg circumference differences of children aged 5 - 12 can be adapted. The magic tape 205 can also be replaced to accommodate obese children. The soil-shaped support mechanism 5 nested inside the soil-shaped support 101 uses multiple airbags to jointly bear and disperse the body pressure, reducing the risk of compressive injury at the bony prominences.

[0022] A headrest mechanism 2 for placing the child's head; Specifically, the interior of the headrest housing 201 of the headrest mechanism 2 adopts a compartmentalized layout. The trapezoidal cross-section airbag one 202 arranged on the upper side is adjusted for the partition pressure through a micro air pump one 203. Its trapezoidal structure reduces the pressure gradient of the head contact surface, and the surface concave-convex anti-slip texture improves the anti-sliding coefficient of the head and neck part; An intelligent dynamic regulation system for dynamically regulating the headrest mechanism 2 and the soil-shaped support mechanism 5; The intelligent dynamic regulation system includes: A dynamic decision-making unit, based on the formula , where is the torso tilt angle measured by the IMU, and the duty cycle of the micro air pump is adjusted through a fuzzy PID algorithm; An execution control unit, when , the pressure of the three groups of airbags two (502) in the chest of the T-shaped support is preferentially increased to 8 kPa, and at the same time, the pressure of the airbag one (202) in the front of the headrest is reduced to 2 kPa; A safety protection unit, triggering a dual-redundancy pressure relief valve when the pressure > 8 kPa or ; The safety protection unit adopts a dual-redundancy pressure relief valve structure. When the local pressure > 8 kPa or , the mechanical valve and the solenoid valve are synchronously opened, and the pressure relief rate reaches 3 kPa / s to prevent spinal hyperextension injury.

[0023] The steady-state error of the fuzzy PID algorithm < 0.3 kPa, and the overshoot < 5%; the fitting error of the bearing surface of all airbags ≤ ±1.5 mm; Specifically, the dynamic decision-making unit of the intelligent dynamic regulation system collects the torso tilt angle of the inertial measurement unit in real time , and based on the formula to establish a pressure compensation model, where the fuzzy PID algorithm controls the steady-state error within a range of 0.3 kPa. When the execution control unit > 15°, it preferentially increases the pressure of the three groups of airbags II 502 in the chest of the T-shaped support device to 8 kPa to form a mechanical fulcrum, and synchronously reduces the pressure of the airbag I 202 in the front of the headrest to 2 kPa to avoid facial compression.

[0024] Please refer to the appendix Figure 1 - appendix Figure 3 , the T-shaped support device 101 is provided with a medical-grade silicone 103 and an open-cell polyurethane sponge layer 104 from the outside to the inside. A sponge filler 102 is filled between the T-shaped support device 101 and the T-shaped support mechanism 5. Fixed straps 4 are provided on both the middle vertical top of the T-shaped support device 101 and the side of the headrest housing 201 close to the T-shaped support device 101. The fixed straps 4 are connected by elastic bands; Specifically, in the layered structure of the T-shaped support device 101, the outer medical-grade silicone 103 reduces the skin shear force on the surface, and the inner open-cell polyurethane sponge layer 104 and the sponge filler 102 filled in the middle achieve a buffering function. The connection of the fixed straps 4 and the elastic bands connects the T-shaped pillow mechanism 1 and the headrest mechanism 2, preventing the loss of the headrest mechanism 2 when taking and using it.

[0025] Please refer to the appendix Figure 4 - appendix Figure 5 , the headrest mechanism 2 includes a headrest housing 201. A plurality of airbags I 202 are provided on the upper side inside the headrest housing 201. The plurality of airbags I 202 are connected by pipelines. The gas supply end of the pipeline is connected to a micro air pump I 203. The micro air pump I 203 is arranged inside the headrest housing 201. An interface 204 is provided on the outside of the headrest housing 201.

[0026] Specifically, the airbag I 202 is connected to the micro air pump I 203 through the gas supply end of the pipeline to realize the inflation and deflation of the airbag I 202. The interface 204 provided on the outside of the headrest housing 201 supports plug-and-play. When not in use, it can also be used without power supply. Part of the gas in the airbag and the sponge filler 102 can also be used temporarily.

[0027] Please refer to the appendix Figure 6 - appendix Figure 7, the soil-type support mechanism 5 includes a soil-type support pipe 501, the soil-type support pipe 501 is arranged inside the soil-type support device 101, multiple groups of air bags II 502 are arranged on the outer part of the soil-type support pipe 501, the multiple groups of air bags II 502 are connected by connecting bands, and the multiple groups of air bags II 502 are connected by pipelines. The air supply ends of the pipelines are all connected with a micro air pump II 503; a plug head 6 is arranged at the bottom of the soil-type support pipe 501, and the plug head 6 is used to operate the intelligent dynamic regulation system and provide the required power supply; The soil-type support pipe 501 of the soil-type support mechanism 5 is made of a plastic frame, which is light, durable and firm. The surface of the externally arranged air bags II 502 has concave and convex textures. The multiple groups of air bags II 502 are connected to the micro air pump II 503 through pipelines for inflation and deflation. The plug head 6 supplies power to the micro air pump II 503 and the regulation system.

[0028] Working principle: When the child lies down, the medical-grade silica gel 103 surface layer of the soil-type support device 101 reduces the skin shear stress through low friction characteristics. The internal perforated polyurethane sponge layer 104 absorbs shock energy with a porous structure and provides a comfortable support for child patients together with the sponge filler 102; The dynamic decision-making unit continuously monitors the trunk tilt angle through the built-in IMU , when , it triggers the fuzzy PID algorithm to calculate the pressure compensation amount. The differential term suppresses the pressure oscillation caused by sudden body position changes, making the steady-state error < 0.3 kPa; The execution control unit preferentially regulates the output of the micro air pump II 503 of the three groups of air bags II 502 in the chest of the soil-type support mechanism 5 according to the value, increases the pressure to form a mechanical fulcrum in a short time, and synchronously reduces the pressure of the air bag I 202 at the front of the headrest mechanism 2 to 2 kPa to avoid facial deformation. The air bag I 202 with a trapezoidal cross-section generates a static friction coefficient through the surface concave and convex textures to prevent the head from sliding; The safety protection unit adopts a double-redundancy pressure relief valve structure. When the local pressure > 8 kPa or , it synchronously opens the mechanical valve and the solenoid valve, quickly relieves the pressure at a rate of 3 kPa / s and triggers a buzzer alarm; The micro air pump I 203 adjusts the internal pressure of the air bag I 202 according to the change of the head and neck curvature, so that the pressure gradient in the occipital region ≤ 0.8 kPa / cm 2 ; The plastic frame of the soil-type support pipe 501 provides a supportable skeleton for child patients, preventing it from being too soft or too hard to perform surgery or other treatments. The headrest mechanism 2 is provided with a plug-in port 204 for plugging in and using electricity, which can make the patient more comfortable.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional limb protector for body position placement in regional block anesthesia, characterized in that, Comprising: A soil-shaped pillow mechanism (1) for placing a child's body position; The soil-shaped pillow mechanism (1) includes a soil-shaped support (101). At the top of the bottom horizontal main pipe of the soil-shaped support (101), a plurality of loop tapes (206) are provided. A magic tape (205) passes through between the two loop tapes (206). A soil-shaped support mechanism (5) is arranged inside the soil-shaped support (101); A headrest mechanism (2) for placing a child's head; An intelligent dynamic regulation system for dynamically adjusting the headrest mechanism (2) and the soil-shaped support mechanism (5).

2. A protective device for the affected limb in the body position placement for multifunctional regional block anesthesia according to claim 1, characterized in that, The soil-shaped support mechanism (5) includes a soil-shaped support pipe (501). The soil-shaped support pipe (501) is arranged inside the soil-shaped support (101). A plurality of groups of air bags II (502) are arranged on the outer side of the soil-shaped support pipe (501). The plurality of groups of air bags II (502) are connected by connecting bands. The plurality of groups of air bags II (502) are connected by pipes. The air supply ends of the pipes are all connected to a micro air pump II (503).

3. A protective device for the affected limb in the body position placement for multi-functional regional block anesthesia according to claim 1, characterized in that, The soil-shaped support (101) is provided with medical-grade silicone (103) and an open-cell polyurethane sponge layer (104) from the outside to the inside. A sponge filler (102) is filled between the soil-shaped support (101) and the soil-shaped support mechanism (5).

4. A protective device for the affected limb in the body position placement for multifunctional regional block anesthesia according to claim 1, characterized in that, The headrest mechanism (2) includes a headrest housing (201). A plurality of air bags I (202) are arranged on the upper side inside the headrest housing (201). The plurality of air bags I (202) are connected by pipes. The air supply end of the pipe is connected to a micro air pump I (203). The micro air pump I (203) is arranged inside the headrest housing (201). An insertion port (204) is arranged on the outer side of the headrest housing (201).

5. A protector for the affected limb in the body position placement for multifunctional regional block anesthesia according to claim 2, characterized in that, An insertion head (6) is arranged at the bottom of the soil-shaped support pipe (501). The insertion head (6) is used to operate the intelligent dynamic regulation system and provide the required power supply.

6. A protector for the affected limb in the body position placement for multi-functional regional block anesthesia according to claim 1, characterized in that, Fixed straps (4) are arranged at the middle vertical top of the soil-shaped support (101) and on one side of the headrest housing (201) close to the soil-shaped support (101). The fixed straps (4) are connected by an elastic band.

7. A protected device for the affected limb in the body position placement for multi-functional regional block anesthesia according to claim 1, wherein, The intelligent dynamic regulation system includes: Dynamic decision-making unit, based on the formula , where is the torso tilt angle measured by the IMU, and the duty cycle of the micro air pump is adjusted by the fuzzy PID algorithm; The execution control unit, when prioritizes increasing the pressure of the three groups of airbags two (502) in the lumbar and dorsal parts of the T-shaped support device to 8 kPa, and at the same time reduces the pressure of the airbag one (202) in the front of the headrest to 2 kPa; Safety protection unit, triggers the dual-redundancy pressure relief valve when the pressure > 8 kPa or when 8. A protector for the affected limb in the body position placement for multifunctional regional block anesthesia according to claim 4, characterized in that, The air bag I (202) has a trapezoidal cross-section, and the surface of the air bag II (502) is provided with concave-convex anti-slip textures.

9. A limb protector for placing the affected limb in a multi-functional regional block anesthesia position according to claim 7, characterized in that, The steady-state error of the fuzzy PID algorithm < 0.3 kPa, and the overshoot is less than 5%; the fitting error of the bearing surfaces of all air bags ≤ ±1.5 mm.

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