Adaptive blood collection tube adopting multi-altitude adjustable composite levorotatory pressurization technology

Abstract

The invention discloses an adaptive blood collection tube adopting a multi-altitude adjustable composite levorotatory pressurization technology, and relates to the technical field of medical apparatuses and instruments. The adaptive blood collection tube adopting the multi-altitude adjustable composite left-handed pressurization technology comprises a composite blood collection tube body, a tube body inlet is formed in the top of the composite blood collection tube body, a left-handed flow guide groove is formed in the inner wall of the tube body inlet, and an air pressure balance unit is arranged on the outer surface of the composite blood collection tube body. A memory alloy pressure guide tube is arranged in an inner cavity of the composite blood collection tube body, an annular pressure distribution cavity is fixedly connected to the inner wall of the composite blood collection tube body, a display screen is arranged on the outer surface of the composite blood collection tube body, the air pressure balance unit comprises a fixed shell, and the two ends of the fixed shell are fixedly connected with an air inlet tube and an exhaust tube respectively. By means of the high-altitude blood collection device, the air pressure change in the high-altitude environment can be effectively handled, and the stability and reliability of blood collection can be remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an adaptable blood collection tube with multi-altitude adjustable composite left-handed pressurization technology. Background Art

[0002] The medical device field, as the main driving force for promoting the development of medical diagnosis and treatment technologies, has a highly strategic industry. With the continuous expansion of global medical resources, medical consumables play an important role in medical services. Due to the relatively scarce medical resources in high-altitude areas, the reliability of medical devices is directly related to the life safety of patients. The use effect of medical devices in high-altitude environments still faces many challenges. Especially in the field of blood collection, existing research has shown that as the altitude increases, the decrease in atmospheric pressure will lead to insufficient negative pressure in the blood collection tube, thus significantly reducing the blood collection efficiency. This phenomenon is particularly obvious in plateau areas with an altitude exceeding 3000 meters.

[0003] Existing plateau-type negative pressure blood collection tubes have limitations in identifying applicable altitude areas during use, which not only affects the blood collection efficiency but also poses a potential threat to the safety of the collection process. Summary of the Invention

[0004] In view of the deficiencies of the existing problems, the present invention provides an adaptable blood collection tube with multi-altitude adjustable composite left-handed pressurization technology to solve the problems presented in the above background art.

[0005] To solve the above problems, the present invention is achieved through the following technical solutions: An adaptable blood collection tube with multi-altitude adjustable composite left-handed pressurization technology, including a composite blood collection tube body. A tube body inlet is provided at the top of the composite blood collection tube body. A left-handed diversion groove is provided on the inner wall of the tube body inlet. A pneumatic balance unit is provided on the outer surface of the composite blood collection tube body. A shape memory alloy pressure guiding tube is provided in the inner cavity of the composite blood collection tube body. An annular pressure distribution cavity is fixedly connected to the inner wall of the composite blood collection tube body. A display screen is provided on the outer surface of the composite blood collection tube body. The pneumatic balance unit includes a fixed housing. An air inlet pipe and an exhaust pipe are respectively fixedly connected to both ends of the fixed housing. A filter screen and a microporous ceramic filter membrane are fixedly connected to the inner surface of the fixed housing. A dynamic piston is provided inside the fixed housing. A spring is fixedly connected to the outer surface of the dynamic piston.

[0006] Preferably, four fixed housings are provided. The outer surface of the exhaust pipe is fixedly connected inside the composite blood collection tube body, and the outer surface of the exhaust pipe penetrates through the composite blood collection tube body and extends into the inner cavity.

[0007] Preferably, one end of the exhaust pipe away from the fixed housing is fixedly connected to the outer surface of the shape memory alloy pressure guiding pipe, and the end of the shape memory alloy pressure guiding pipe is fixedly connected to the inside of the annular pressure distribution chamber.

[0008] Preferably, an intake electromagnetic valve is arranged inside the intake pipe, and an exhaust electromagnetic valve is arranged inside the exhaust pipe.

[0009] Preferably, a gas buffer chamber and a pressure regulating chamber are arranged inside the fixed housing. The gas buffer chamber is arranged on the side of the microporous ceramic filter membrane close to the intake pipe, and the pressure regulating chamber is arranged on the side of the microporous ceramic filter membrane close to the exhaust pipe.

[0010] Preferably, the filter screen is arranged inside the gas buffer chamber, and the dynamic piston and the spring are arranged inside the pressure regulating chamber.

[0011] Preferably, the spring is arranged on the side of the dynamic piston away from the microporous ceramic filter membrane, and one end of the spring away from the dynamic piston is fixedly connected to the inner surface of the fixed housing.

[0012] Preferably, pressure distribution holes are formed on the inner surface of the annular pressure distribution chamber. A temperature sensor is arranged on the inner wall of the composite blood collection tube body. Pressure sensors are arranged on both the outer surface and the inner wall of the composite blood collection tube body. A control cabin is fixedly connected to the outer surface of the composite blood collection tube body.

[0013] Preferably, the composite blood collection tube body includes a medical-grade polyurethane layer, an elastic memory metal mesh, and a medical-grade silicone layer. The elastic memory metal mesh is arranged on the outer surface of the medical-grade silicone layer, and the medical-grade polyurethane layer is arranged on the outer surface of the elastic memory metal mesh.

[0014] The present invention provides an adaptable blood collection tube for a multi-altitude adjustable composite left-handed supercharging technology. It has the following beneficial effects:

[0015] First, for the adaptable blood collection tube of the multi-altitude adjustable composite left-handed supercharging technology, through the cooperation of the air pressure balance unit and the left-handed diversion groove, the blood collection tube can automatically adjust the internal pressure within the altitude range of 0 - 5000 m to cope with the air pressure changes at different altitudes. In high-altitude areas, it will automatically increase the supercharging amplitude to compensate for the decrease in air pressure. In low-altitude areas, the system will correspondingly reduce the supercharging amplitude to avoid the problem of blood backflow caused by excessive supercharging. This adaptive control strategy not only improves the flexibility of the system but also significantly enhances its adaptability in complex environments.

[0016] II. The adaptable blood collection tube with the multi-altitude adjustable composite left-handed supercharging technology is provided with a composite blood collection tube body. By using a highly elastic material, it can maintain the structural stability when the air pressure changes, avoiding rupture or deformation caused by air pressure fluctuations. The polyurethane material has excellent elasticity and can maintain its shape at different altitudes, ensuring the smooth progress of blood collection. The compression strength and anti-fatigue performance of the composite material under simulated high-altitude air pressure conditions are significantly better than those of traditional materials, enabling the blood collection tube to have a longer service life.

[0017] III. The adaptable blood collection tube with the multi-altitude adjustable composite left-handed supercharging technology, through the control cabin and the display screen, uses a graphical interface to display information such as the working status, environmental parameters, and control strategies of the blood collection tube to the operator in real time, thus realizing the intelligence and high efficiency of the blood collection process. This data-driven control method not only improves the response speed of the system, reduces the blood collection failure rate caused by air pressure changes, significantly reduces the need for human intervention, but also enhances the operability and transparency of the system, thereby ensuring the medical safety of patients in plateau areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the whole invention;

[0019] Figure 2 is a schematic cross-sectional structural diagram of the whole invention;

[0020] Figure 3 is a schematic top structural diagram of the composite blood collection tube body of the invention;

[0021] Figure 4 is a schematic structural diagram of the air pressure balance unit of the invention;

[0022] Figure 5 is a schematic cross-sectional structural diagram of the composite blood collection tube body of the invention.

[0023] In the figure: 1. Composite blood collection tube body; 101. Medical-grade polyurethane layer; 102. Elastic memory metal mesh; 103. Medical-grade silicone layer; 2. Tube body inlet; 3. Air pressure balance unit; 301. Fixed housing; 302. Intake pipe; 303. Exhaust pipe; 304. Intake solenoid valve; 305. Exhaust solenoid valve; 306. Filter screen; 307. Microporous ceramic filter membrane; 308. Gas buffer chamber; 309. Pressure regulation chamber; 310. Dynamic piston; 311. Spring; 4. Memory alloy pressure guiding tube; 5. Annular pressure distribution chamber; 6. Pressure distribution hole; 7. Temperature sensor; 8. Pressure sensor; 9. Control cabin; 10. Left-handed diversion groove; 11. Display screen. DETAILED DESCRIPTION OF THE INVENTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles of the present invention and its practical applications, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0025] Embodiment 1

[0026] As Figures 1 - 5 shown, the present invention provides a technical solution: an adaptable blood collection tube with a multi-altitude adjustable composite left-handed supercharging technology, including a composite blood collection tube body 1. A tube body inlet 2 is provided at the top of the composite blood collection tube body 1. A left-handed diversion groove 10 is provided on the inner wall of the tube body inlet 2. A pneumatic balance unit 3 is provided on the outer surface of the composite blood collection tube body 1. A shape memory alloy pressure guiding tube 4 is provided in the inner cavity of the composite blood collection tube body 1. An annular pressure distribution cavity 5 is fixedly connected to the inner wall of the composite blood collection tube body 1. A display screen 11 is provided on the outer surface of the composite blood collection tube body 1. The pneumatic balance unit 3 includes a fixed housing 301. An air inlet pipe 302 and an exhaust pipe 303 are respectively fixedly connected to both ends of the fixed housing 301. A filter screen 306 and a microporous ceramic filter membrane 307 are fixedly connected to the inner surface of the fixed housing 301. A dynamic piston 310 is provided inside the fixed housing 301. A spring 311 is fixedly connected to the outer surface of the dynamic piston 310.

[0027] There are four fixed housings 301. The outer surface of the exhaust pipe 303 is fixedly connected inside the composite blood collection tube body 1, and the outer surface of the exhaust pipe 303 penetrates through the composite blood collection tube body 1 and extends into the inner cavity.

[0028] One end of the exhaust pipe 303 far from the fixed housing 301 is fixedly connected to the outer surface of the shape memory alloy pressure guiding tube 4, and the end of the shape memory alloy pressure guiding tube 4 is fixedly connected inside the annular pressure distribution cavity 5.

[0029] An intake solenoid valve 304 is provided inside the air inlet pipe 302, and an exhaust solenoid valve 305 is provided inside the exhaust pipe 303.

[0030] A gas buffer cavity 308 and a pressure regulating cavity 309 are provided inside the fixed housing 301. The gas buffer cavity 308 is provided on the side of the microporous ceramic filter membrane 307 close to the air inlet pipe 302, and the pressure regulating cavity 309 is provided on the side of the microporous ceramic filter membrane 307 close to the exhaust pipe 303.

[0031] The filter screen 306 is provided inside the gas buffer cavity 308, and the dynamic piston 310 and the spring 311 are provided inside the pressure regulating cavity 309.

[0032] The spring 311 is arranged on the side of the dynamic piston 310 away from the microporous ceramic filter membrane 307, and one end of the spring 311 away from the dynamic piston 310 is fixedly connected to the inner surface of the fixed housing 301.

[0033] Pressure distribution holes 6 are formed on the inner surface of the annular pressure distribution chamber 5. A temperature sensor 7 is arranged on the inner wall of the composite blood collection tube body 1. Pressure sensors 8 are arranged on both the outer surface and the inner wall of the composite blood collection tube body 1. A control cabin 9 is fixedly connected to the outer surface of the composite blood collection tube body 1.

[0034] The composite blood collection tube body 1 includes a medical-grade polyurethane layer 101, a shape memory metal mesh 102, and a medical-grade silica gel layer 103. The shape memory metal mesh 102 is arranged on the outer surface of the medical-grade silica gel layer 103, and the medical-grade polyurethane layer 101 is arranged on the outer surface of the shape memory metal mesh 102.

[0035] During use, the composite blood collection tube body 1 adopts a three-layer composite structure. The outer layer is the medical-grade polyurethane layer 101, which provides mechanical protection. The middle layer is the shape memory metal mesh 102, which is made of a nickel-titanium memory alloy woven mesh and endows the tube body with a shape memory function to ensure dimensional stability under extreme temperatures. The inner layer is the medical-grade silica gel layer 103, which is in direct contact with the blood. Three left-handed diversion grooves 10 are etched on the inner wall of the medical-grade silica gel layer 103. When the blood flows through, the left-handed diversion grooves 10 guide the fluid to form a spiral motion, generating the Coriolis effect, which increases the blood flow rate. Four air pressure balance units 3 are equidistantly distributed along the axis of the composite blood collection tube body 1, corresponding to the altitude ranges of 0 - 1500m, 1500 - 3000m, 3000 - 4500m, and 4500 - 5000m respectively. When the pressure sensor 8 detects a change in the ambient air pressure, the microcontroller arranged in the control cabin 9 activates the corresponding unit according to the preset altitude segmentation algorithm. In the low-pressure compensation mode, that is, at high altitudes, the intake solenoid valve 304 is opened, and the ambient gas enters the pressure regulation chamber 309 after being filtered and purified by the filter screen 306 and the microporous ceramic filter membrane 307, pushing the dynamic piston 310 to compress the spring 311, reducing the cavity volume and increasing the internal pressure to the target value. In the high-pressure relief mode, that is, at low altitudes, the exhaust solenoid valve 305 is opened, and the excess pressure is quickly released through the shape memory alloy pressure guiding tube 4. The dynamic piston 310 resets under the action of the spring 311. The temperature sensor 7 monitors the internal cavity temperature in real time. The microcontroller dynamically corrects the solenoid valve opening through the PID algorithm to offset the material deformation error caused by temperature. The pressure and temperature data are transmitted to the microcontroller, and after 16-bit AD conversion, a PWM signal is generated to drive the solenoid valve. The control algorithm integrates fuzzy logic compensation, which can predict the pressure change trend during altitude sudden changes and adjust the valve body state in advance. A data recorder is arranged in the control cabin 9 to record the operation parameters throughout the process, supporting offline analysis.

[0036] 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 and related fields based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention shall be implemented by conventional means in the art unless otherwise specified and limited.

Claims

1. An adaptable blood collection tube with a multi-altitude adjustable composite left-handed supercharging technology, comprising a composite blood collection tube body (1), characterized in that: At the top of the composite blood collection tube body (1), there is a tube body inlet (2). On the inner wall of the tube body inlet (2), there is a left-handed diversion groove (10). On the outer surface of the composite blood collection tube body (1), there is a pneumatic balance unit (3). Inside the cavity of the composite blood collection tube body (1), there is a shape memory alloy pressure guiding tube (4). Fixedly connected to the inner wall of the composite blood collection tube body (1) is an annular pressure distribution cavity (5). On the outer surface of the composite blood collection tube body (1), there is a display screen (11). The pneumatic balance unit (3) includes a fixed housing (301). At both ends of the fixed housing (301), an air inlet pipe (302) and an exhaust pipe (303) are respectively fixedly connected. Fixedly connected to the inner surface of the fixed housing (301) are a filter screen (306) and a microporous ceramic filter membrane (307). Inside the fixed housing (301), there is a dynamic piston (310). Fixedly connected to the outer surface of the dynamic piston (310) is a spring (311).

2. The adaptable blood collection tube with a multi-altitude adjustable compound left-handed supercharging technology according to claim 1, characterized in that: There are four of the fixed housings (301). The outer surface of the exhaust pipe (303) is fixedly connected inside the composite blood collection tube body (1). The outer surface of the exhaust pipe (303) penetrates through the composite blood collection tube body (1) and extends into the inner cavity.

3. An adaptable blood collection tube with a multi-altitude adjustable composite left-handed supercharging technology according to claim 1, characterized in that: One end of the exhaust pipe (303) away from the fixed housing (301) is fixedly connected to the outer surface of the shape memory alloy pressure guiding tube (4). The end of the shape memory alloy pressure guiding tube (4) is fixedly connected inside the annular pressure distribution cavity (5).

4. An adaptable blood collection tube with a multi-altitude adjustable composite left-handed supercharging technology according to claim 1, characterized in that: Inside the air inlet pipe (302), there is an intake solenoid valve (304). Inside the exhaust pipe (303), there is an exhaust solenoid valve (305).

5. An adaptable blood collection tube with a multi-altitude adjustable compound left-handed supercharging technique according to claim 1, characterized in that: Inside the fixed housing (301), there are a gas buffer cavity (308) and a pressure regulating cavity (309). The gas buffer cavity (308) is arranged on the side of the microporous ceramic filter membrane (307) close to the air inlet pipe (302). The pressure regulating cavity (309) is arranged on the side of the microporous ceramic filter membrane (307) close to the exhaust pipe (303).

6. The adaptable blood collection tube using the multi-altitude adjustable compound left-handed supercharging technology according to claim 5, wherein: The filter screen (306) is arranged inside the gas buffer cavity (308). The dynamic piston (310) and the spring (311) are arranged inside the pressure regulating cavity (309).

7. An adaptable blood collection tube with a multi-altitude adjustable compound left-handed supercharging technology according to claim 1, characterized in that: The spring (311) is arranged on the side of the dynamic piston (310) away from the microporous ceramic filter membrane (307). One end of the spring (311) away from the dynamic piston (310) is fixedly connected to the inner surface of the fixed housing (301).

8. The adaptable blood collection tube with multi-altitude adjustable compound left-handed supercharging technology according to claim 1, characterized in that: On the inner surface of the annular pressure distribution cavity (5), there are pressure distribution holes (6). On the inner wall of the composite blood collection tube body (1), there is a temperature sensor (7). On both the outer surface and the inner wall of the composite blood collection tube body (1), there are pressure sensors (8). Fixedly connected to the outer surface of the composite blood collection tube body (1) is a control cabin (9).

9. The adaptable blood collection tube with multi-altitude adjustable compound left-handed supercharging technology according to claim 1, characterized in that: The composite blood collection tube body (1) includes a medical-grade polyurethane layer (101), an elastic memory metal mesh (102), and a medical-grade silica gel layer (103). The elastic memory metal mesh (102) is disposed on the outer surface of the medical-grade silica gel layer (103), and the medical-grade polyurethane layer (101) is disposed on the outer surface of the elastic memory metal mesh (102).

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