Intelligent detection device for water injection rate of portable skin dilator

Abstract

The invention relates to the technical field of medical instruments, and discloses a portable skin dilator water injection rate intelligent detection device which comprises an outer frame body and a dilation bag, a water storage barrel, a control unit and a second electric telescopic rod are arranged in the outer frame body, a piston is arranged in the water storage barrel, and a water conveying pipe is connected between the water outlet end of the water storage barrel and the dilation bag. The water conveying pipe is composed of a hard pipe part and a soft pipe part, a first flow meter and a first electric control valve are installed on the hard pipe part, and the skin surface sensor set is attached to the surface of the skin to be expanded; the pressure sensor is arranged on the inner wall of the expansion bag; through cooperation of the skin surface sensor group, the pressure sensor and the like, intelligent water injection can be achieved, precise control over the pressure, the water injection amount and the like can be achieved, compared with traditional manual water injection, control over the water injection amount is greatly improved, the workload is reduced, and meanwhile the safety of patient skin water injection is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical appliances, and particularly to an intelligent detection device for the water injection volume of a portable skin expander. Background Art

[0002] Skin and soft tissue expansion is a surgical technique that can expand the area of human skin and soft tissue. Currently, after a patient has had a skin expander implanted for a period of time, water is injected into the expander. By gradually injecting water into the skin expander, the skin is expanded to obtain additional skin tissue for repairing scars, defects, etc. During the skin expansion process, accurately controlling the water injection volume is crucial. If the water injection volume is too small, the expected skin expansion effect cannot be achieved, prolonging the treatment cycle; if the water injection volume is too large, serious complications such as skin ischemia and necrosis may occur.

[0003] Currently, the commonly used methods for controlling the water injection volume in clinical practice mainly rely on the experience and manual operations of medical staff, lacking precise quantitative monitoring means. This method has many problems, such as inaccurate control of the water injection volume, large differences in the operations of different medical staff, inability to obtain key data such as the pressure and water injection volume in the skin expander in real time, difficulty in dynamically adjusting the expansion process and early warning of risks, increasing the probability of complications, and affecting the treatment effect and patient recovery. Therefore, an intelligent detection device for the water injection volume of a portable skin expander is proposed herein. Summary of the Invention

[0004] The present invention proposes an intelligent detection device for the water injection volume of a portable skin expander to solve the problem that the existing water injection volume mainly relies on the experience and manual operations of medical staff and lacks precise quantitative monitoring means.

[0005] To achieve the above object, the present invention provides the following technical solution: An intelligent detection device for the water injection volume of a portable skin expander, including an outer frame body and an expansion bladder. A water storage cylinder, a control unit, and a second electric telescopic rod are arranged inside the outer frame body. A piston is arranged inside the water storage cylinder, and the piston is connected to the output end of the second electric telescopic rod. A water delivery pipe is connected between the water outlet end of the water storage cylinder and the expansion bladder. The water delivery pipe is composed of a hard pipe part and a flexible pipe part. A first flow meter and a first electric control valve are installed on the hard pipe part. The device further includes:

[0006] A skin surface sensor group, attached to the surface of the skin to be expanded;

[0007] A pressure sensor, arranged on the inner wall of the expansion bladder;

[0008] A flexible pipe extrusion assembly, including a collar and an extrusion part. The collar is sleeved outside the flexible pipe part, and the flexible pipe is extruded through the extrusion part to push the collar to move along the flexible pipe part.

[0009] Preferably, the skin surface sensor group includes a tension sensor and a micro-infrared sensor.

[0010] Preferably, a second flowmeter is installed at one end of the hose part close to the dilation sac.

[0011] Preferably, a storage battery is further provided inside the outer frame body. The storage battery is located below the second electric telescopic rod, and the control unit is located above the second electric telescopic rod.

[0012] Preferably, the control unit includes a control panel, a display screen, and an alarm.

[0013] Preferably, a water replenishing pipe is connected to the water storage cylinder, and a second electric control valve is installed on the water replenishing pipe.

[0014] Preferably, an adhesive part is provided at the bottom end of the outer frame body, and straps are connected to both sides of the bottom end of the outer frame body and located at the adhesive part.

[0015] Preferably, the extrusion part includes an airbag installed on the inner wall of the collar. An air supply hose is connected to the airbag, and a micro air pump is installed at the air inlet end of the air supply hose.

[0016] Preferably, the extrusion part further includes a convex plate connected to the outside of the collar, and a first electric telescopic rod is installed between the convex plate and the outer frame body.

[0017] Preferably, two first electric telescopic rods are symmetrically provided, and both ends of the inner wall of the collar are integrally formed into outwardly expanding arc-shaped parts.

[0018] In the above technical solution, the technical effects and advantages provided by the present invention are as follows:

[0019] (1) Through the cooperation of the skin surface sensor group, the pressure sensor, etc., intelligent water injection can be realized, and precise control of parameters such as pressure and water injection volume can be achieved. Compared with traditional manual water injection, the control of the water injection volume is greatly improved, the workload is reduced, and the safety of skin water injection for patients is improved.

[0020] (2) By providing the first flowmeter and the second flowmeter in the hard pipe part and the hose part of the water delivery pipe, the flow rate and flow volume of normal saline flowing out of the water storage cylinder and entering the dilation sac can be monitored in real time and accurately, effectively avoiding the water injection volume error caused by the residual liquid in the hose part, and ensuring that the set precise value can be achieved for each water injection.

[0021] (3) In the hose extrusion assembly, components such as the collar, airbag, and first electric telescopic rod cooperate with each other. When the first flowmeter monitors that the outflow of normal saline meets the standard while the second flowmeter monitors that the amount of normal saline does not meet the standard, the micro air pump can be automatically started to inflate the airbag to extrude the hose, and then the collar is pushed by the first electric telescopic rod to extrude the normal saline in the hose into the expansion sac, further ensuring the accuracy of the injection volume. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 is one of the overall structural schematic diagrams of the present invention;

[0024] Figure 2 is the second of the overall structural schematic diagrams of the present invention;

[0025] Figure 3 is the sectional structural schematic diagram of the present invention;

[0026] Figure 4 is the sectional structural schematic diagram of the expansion sac of the present invention;

[0027] Figure 5 is the structural schematic diagram of the hose extrusion assembly of the present invention;

[0028] Figure 6 is the structural schematic diagram of the water storage cylinder of the present invention;

[0029] In the figure: 1. Outer frame body; 2. Water storage cylinder; 3. Control unit; 4. Skin surface sensor group; 41. Tension sensor; 42. Micro infrared sensor; 5. Expansion sac; 6. Hose extrusion assembly; 61. Collar; 62. Airbag; 63. Convex plate; 64. First electric telescopic rod; 65. Micro air pump; 66. Air supply hose; 7. Hard pipe part; 8. Hose part; 9. First flowmeter; 10. First electric control valve; 11. Second flowmeter; 12. Adhesive part; 13. Binding strap; 14. Second electric telescopic rod; 15. Battery; 16. Water replenishing pipe; 17. Second electric control valve; 18. Pressure sensor; 19. Piston. Detailed Embodiments

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. 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 protection scope of the present invention.

[0031] Embodiment 1:

[0032] The present invention provides as Figures 1 - 4 and Figure 6A smart detection device for the water injection volume of a portable skin expander, including an outer frame 1 and an expansion sac 5. The outer frame 1 is integrally formed with high-strength medical-grade PC material, and its surface is treated with frosted anti-slip. The edge is designed with rounded corners to effectively avoid the risk of scratching. At the bottom end of the outer frame 1, there is an adhesive part 12. The adhesive part 12 is double-layer composite. The upper layer is a hypoallergenic medical pressure-sensitive adhesive layer, which can closely adhere to the skin surface. The lower layer is internally provided with anti-stick release paper, which is convenient for peeling and using after positioning. On both sides of the adhesive part 12 at the bottom end of the outer frame 1, there are connected straps 13. The straps 13 are woven with elastic memory fibers. Clips can be set on the straps 13, which can be quickly tightened or released according to actual needs. The cooperation of the adhesive part 12 and the straps 13 is convenient for carrying on the patient, which is relatively convenient. Inside the outer frame 1, there are a water storage cylinder 2, a control unit 3, and a second electric telescopic rod 14. The water storage cylinder 2 can be made of medical-grade PP material. Normal saline is stored in the water storage cylinder 2. Inside the water storage cylinder 2, there is a piston 19. The piston 19 is made of circular rubber material, and its edge closely adheres to the cylinder wall, which not only ensures the sealing performance but also can move flexibly. The second electric telescopic rod 14 is preferably driven by a high-precision servo motor, which can achieve more precise displacement control, ensure the smooth and precise movement of the piston 19, and thus realize the precise regulation of the extrusion amount of normal saline. The piston 19 is connected to the output end of the second electric telescopic rod 14, and the movement of the piston 19 is realized through the second electric telescopic rod 14 to realize the extrusion of normal saline. A water delivery pipe is connected between the water outlet end of the water storage cylinder 2 and the expansion sac 5. The water delivery pipe is composed of a hard pipe part 7 and a soft pipe part 8. The soft pipe part 8 is made of medical-grade silicone material, which is soft and elastic and has good bending resistance. At one end of the soft pipe part 8 close to the expansion sac 5, a second flowmeter 11 is installed. The second flowmeter 11 can monitor the flow rate and flow volume of normal saline entering the expansion sac 5 in real time and accurately, and the measurement accuracy reaches ±0.1 mL / min. The hard pipe part 7 is located at the water outlet end close to the water storage cylinder 2, and a first flowmeter 9 and a first electric control valve 10 are installed on the hard pipe part 7. The first flowmeter 9 can monitor the flow rate and flow volume of normal saline flowing out of the water storage cylinder 2 in real time and accurately, and the measurement accuracy reaches ±0.1 mL / min; the first electric control valve 10 is a normally closed solenoid valve, which can quickly open or close within 0.5 seconds after receiving a control signal, realize the rapid truncation and conduction of water flow, and ensure the safety and controllability of the entire water delivery system. It also includes a skin surface sensor group 4 and a pressure sensor 18. The skin surface sensor group 4 is attached to the surface of the skin to be expanded, and the pressure sensor 18 is arranged on the inner wall of the expansion sac 5. Specifically, the pressure sensor 18 is embedded in the inner surface of the expansion sac 5, and the pressure sensor 18 is a flexible pressure sensor (such as a Flexiforce thin film sensor), which can monitor the pressure change in the expansion sac 5 in real time and calculate the water injection volume. For example, the pressure signal is converted into the actual water injection volume through a pressure-volume model.

[0033] Among them, refer to Figure 1 andFigure 2 As shown, the skin surface sensor group 4 includes a tension sensor 41 and a micro infrared sensor 42. The tension sensor 41 is a flexible tension sensor made of liquid metal wire attached to the skin surface to detect the tensile deformation in the two-dimensional direction of the skin, and comprehensively evaluate the expansion effect by combining pressure data. The micro infrared sensor 42 monitors the skin temperature and blood flow velocity to avoid ischemic necrosis caused by excessive pressure.

[0034] Refer to Figure 3 As shown, a storage battery 15 is also provided inside the outer frame body 1. The storage battery 15 uses a rechargeable lithium battery (such as 18650 battery), has a long battery life, supports Type-C fast charging. The storage battery 15 is located below the second electric telescopic rod 14, and the control unit 3 is located above the second electric telescopic rod 14. The overall structure is compact, making it relatively small and convenient for patients to carry and use portably. The control unit 3 includes a control panel, a display screen and an alarm. It may also be provided with a Bluetooth module and a wireless module. The control panel is equipped with mode switching buttons, supporting the switching between "manual mode" and "automatic mode". In the manual mode, the user can freely control the water injection process. In the automatic mode, the device will automatically perform the water injection operation according to the preset parameters and detection data. The control panel is built-in with a microcontroller, which can quickly respond to and process the user's button operations, and transmit the operation instructions to the main control chip; the display screen can adopt a split-screen display design. The upper half part displays key data in real time, including the current water injection volume, the pressure inside the expansion capsule, the skin surface tension, the skin temperature, etc. The data update frequency is 1 time per second or other. The lower half part displays the device working status information, such as the current working mode, battery power, wireless connection status, etc.; the alarm can integrate the functions of sound and light alarm. The sound alarm part uses a buzzer. When an abnormal situation is detected, in addition to the local sound and light alarm, it will also send an alarm notification to the mobile phone APP via Bluetooth or Wi-Fi to remind to deal with it in time.

[0035] In addition, refer to Figure 3 and Figure 6 As shown, a water replenishing pipe 16 is connected to the water storage cylinder 2. A second electric control valve 17 is installed on the water replenishing pipe 16. One end of the water replenishing pipe 16 is tightly connected to the water storage cylinder 2 through a threaded interface to ensure good sealing at the connection and prevent liquid leakage; the other end can be provided with a quick plug connector to facilitate quick connection with an external liquid replenishing device, improving the efficiency of the water replenishing operation. The second electric control valve 17 controls the water replenishing volume and can block the water replenishing pipe 16. When injecting water into the expansion capsule 5, it can prevent the physiological saline in the water storage cylinder 2 from flowing out through the water replenishing pipe 16.

[0036] Embodiment 2:

[0037] Refer to Figures 1 - 3 and Figure 5As shown, the intelligent detection device for the water injection volume of the portable skin expander further includes a hose extrusion assembly 6. The hose extrusion assembly 6 includes a collar 61 and an extrusion part. The collar 61 is sleeved outside the hose part 8. Both ends of the inner wall of the collar 61 are integrally formed into outwardly expanding arc-shaped parts. The setting of the outwardly expanding arc-shaped parts can reduce the damage caused by the end of the collar 61 rubbing against the hose part 8. The hose is extruded by the extrusion part and the collar 61 is pushed to move along the hose part 8.

[0038] Among them, referring to Figure 5 As shown, the extrusion part includes an airbag 62 installed on the inner wall of the collar 61. A gas supply hose 66 is connected to the airbag 62. A micro air pump 65 is installed at the air inlet end of the gas supply hose 66. An exhaust pipe is also connected to the airbag 62, and an electric valve is installed on the exhaust pipe to achieve rapid deflation when not extruding;

[0039] The extrusion part further includes a convex plate 63 connected to the outside of the collar 61. A first electric telescopic rod 64 is installed between the convex plate 63 and the outer frame 1. There are two first electric telescopic rods 64 symmetrically arranged. The two first electric telescopic rods 64 symmetrically push the collar 61, which can improve the stability of the movement of the collar 61, and the gas supply hose 66 is provided with a sufficient length to meet the movement needs of the collar 61.

[0040] Through the above, when the first flowmeter 9 monitors that the outflowing physiological saline reaches the standard, while the physiological saline volume monitored by the second flowmeter 11 has not reached the standard, the micro air pump 65 can be automatically started. The micro air pump 65 is used to inflate the airbag 62, so that the airbag 62 extrudes the hose part 8. Subsequently, the first electric telescopic rod 64 is started, and the first electric telescopic rod 64 is used to push the convex plate 63, so that the collar 61 extruding the hose part 8 moves, and the physiological saline in the hose part 8 is extruded into the expansion bladder 5, effectively avoiding the injection volume error caused by the residual liquid in the hose part 8, ensuring that the injection volume can reach the set accurate value each time, providing precise liquid volume control for skin expansion treatment, and improving the treatment effect;

[0041] At the same time, an automated extrusion operation is realized. Compared with manual operation, the operation time is shortened, and the workload can be effectively reduced.

[0042] A sensor can be configured therein to monitor the pressure of the airbag 62 extruding the hose part 8 in real time to avoid excessive extrusion. Moreover, in order to ensure that it can still move after extrusion, the outer wall of the airbag 62 and the inner wall of the collar 61 are both lubricated to reduce the friction force.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An intelligent detection device for the water injection volume of a portable skin expander, comprising an outer frame body (1) and an expansion sac (5). A water storage cylinder (2), a control unit (3) and a second electric telescopic rod (14) are arranged inside the outer frame body (1). A piston (19) is arranged inside the water storage cylinder (2). The piston (19) is connected to the output end of the second electric telescopic rod (14). It is characterized in that, A water delivery pipe is connected between the water outlet end of the water storage cylinder (2) and the expansion bladder (5). The water delivery pipe is composed of a hard pipe part (7) and a flexible pipe part (8). A first flowmeter (9) and a first electric control valve (10) are installed on the hard pipe part (7). Further included are: A skin surface sensor group (4), attached to the surface of the skin to be expanded; A pressure sensor (18), arranged on the inner wall of the expansion bladder (5); A flexible pipe extrusion assembly (6), including a collar (61) and an extrusion part. The collar (61) is sleeved outside the flexible pipe part (8), and the flexible pipe is extruded through the extrusion part to push the collar (61) to move along the flexible pipe part (8).

2. The intelligent detection device for the water injection volume of a portable skin expander according to claim 1, wherein: The skin surface sensor group (4) includes a tension sensor (41) and a micro infrared sensor (42).

3. The intelligent detection device for the injection volume of a portable skin expander according to claim 1, characterized in that: A second flowmeter (11) is installed on the flexible pipe part (8) and near one end of the expansion bladder (5).

4. The intelligent detection device for the water injection volume of a portable skin expander according to claim 1, wherein: A storage battery (15) is further arranged inside the outer frame body (1). The storage battery (15) is located below the second electric telescopic rod (14), and the control unit (3) is located above the second electric telescopic rod (14).

5. The intelligent detection device for the water injection volume of a portable skin expander according to claim 4, characterized in that: The control unit (3) includes a control panel, a display screen and an alarm.

6. The intelligent detection device for the injection volume of a portable skin expander according to claim 1, characterized in that: A water replenishing pipe (16) is connected to the water storage cylinder (2), and a second electric control valve (17) is installed on the water replenishing pipe (16).

7. The intelligent detection device for the water injection volume of a portable skin expander according to claim 1, characterized in that: An adhesive part (12) is arranged at the bottom end of the outer frame body (1), and straps (13) are connected to both sides of the bottom end of the outer frame body (1) and located at the adhesive part (12).

8. An intelligent detection device for the injection volume of a portable skin expander according to claim 1, characterized in that: The extrusion part includes an airbag (62) installed on the inner wall of the collar (61). An air supply hose (66) is connected to the airbag (62), and a micro air pump (65) is installed at the air inlet end of the air supply hose (66).

9. An intelligent detection device for the water injection volume of a portable skin expander according to claim 8, characterized in that: The extrusion part further includes a convex plate (63) connected to the outside of the collar (61), and a first electric telescopic rod (64) is installed between the convex plate (63) and the outer frame body (1).

10. The intelligent detection device for the water injection volume of a portable skin expander according to claim 9, characterized in that: Two first electric telescopic rods (64) are symmetrically arranged, and both ends of the inner wall of the collar (61) are integrally formed into outwardly expanding arc-shaped parts.

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