Woven artificial blood vessel micro-nano bubble directional cleaning device and cleaning method

Abstract

The invention relates to the technical field of biomedical material manufacturing, in particular to a woven artificial blood vessel micro-nano bubble directional cleaning device and method, and the device comprises a micro-nano bubble generation unit, a water circulation unit and a directional flushing unit. Through directional high-speed strong impact of micro-nano bubbles, the micro-nano bubbles are broken and cracked under the impact, and dirt in threads of the woven artificial blood vessel and dirt between fibers and dirt between yarns are stripped, so that the cleanliness requirement of the woven artificial blood vessel is met.

Description

Technical Field

[0001] The invention relates to the technical field of biomedical material manufacturing, in particular to a woven artificial blood vessel micro-nano bubble directional cleaning device and a cleaning method. Background Art

[0002] Braided artificial blood vessels are mainly used to treat patients with aneurysms or occluded arteries. They are implantable Class III medical devices and have very high cleanliness requirements. However, the preparation of braided artificial blood vessels requires multiple processes such as warping, weaving, slitting, widening, and shaping, which may be contaminated with pollutants such as oil and bacteria. Braided artificial blood vessels are soft tubular threaded fabrics woven from yarns. The fibers and yarns are tightly attached, which makes cleaning difficult and incomplete.

[0003] To solve the above problems, Chinese patent CN117449044A discloses a tubular fabric inner wall cleaning device, including a self-rotating cleaning box, a liquid supply device, and a power device. The inner wall rotation cleaning method is adopted. The tubular fabric is fixed by a sleeve bracket and does not contact the self-rotating cleaning device. The cleaning time and single / repeated cleaning mode can be freely selected by controlling the motor speed and rotation direction. The liquid outlet pressure can be controlled by the pump body and the ball valve, thereby controlling the cleaning force and improving the inner wall cleaning efficiency. Chinese patent CN221588912U discloses a tubular fabric outer wall cleaning device, including a cleaning box, an automatic water storage bucket and a power device, which realizes on-demand control of the cleaning time and cleaning speed of the tubular fabric, solves the problems of time-consuming traditional manual operation, incomplete cleaning, and inconsistent cleaning quality, and the cleaning box rotating disk can be equipped with 6 tubular fabrics at a time, thereby improving the cleaning efficiency.

[0004] In the above technical solution, ordinary flushing is adopted, which cannot ensure sufficient cleaning of the thread structure of the braided artificial blood vessel and the tight bonding between fibers and yarns. Summary of the invention

[0005] The purpose of the present invention is to provide a directional cleaning device and method for a braided artificial blood vessel using micro-nano bubbles, which can ensure the cleanliness requirements of the braided artificial blood vessel by directional high-speed and strong impact of micro-nano bubbles, which will rupture and peel off the dirt in the threads of the braided artificial blood vessel and between the fibers and yarns under the impact.

[0006] To achieve the above-mentioned purpose, the present invention provides a braided artificial blood vessel micro-nano bubble directional cleaning device, comprising a micro-nano bubble generating unit, a water circulation unit, and a directional flushing unit.

[0007] The directional flushing unit comprises a base, a slip ring motor, a coupling I, a slip ring, a micro-nano bubble delivery tube, a box, a circular support mechanism, a linear guide rail, a guide rail slider, a guide rail mounting plate, a linear moving module, a module motor, a coupling II, and a module motor mounting plate; a slip ring motor is installed below the base, and the slip ring motor is coaxially connected to the outer circle of the lower end of the micro-nano bubble delivery tube through the coupling I, and the micro-nano bubble rotating shaft on the micro-nano bubble delivery tube is coaxially interference connected with the rotating end of the slip ring; a slip ring fixed end inlet is provided at the fixed end of the slip ring, and the slip ring fixed end inlet is connected to the micro-nano bubble generating unit; a slip ring rotating end outlet is provided at the rotating end of the slip ring, and the slip ring rotating end outlet is connected to the inlet pipeline of the micro-nano bubble delivery tube; an inner wall cleaning tube and an outer wall cleaning tube are provided on the micro-nano bubble delivery tube, and the distance between the inner wall cleaning tube and the outer wall cleaning tube is 400mm. An inner wall cleaning pipe outlet and an outer wall cleaning pipe outlet are respectively opened at 5mm from the top of the wall cleaning pipe. The two outlets are conical ports, and the two conical ports are coaxially arranged opposite to each other to form micro-nano bubble counteraction; the fixed end of the slip ring is sealed and connected to the middle position of the bottom surface of the box, the box is fixed above the base, and guide rail mounting plates are respectively installed on the two parallel sides of the box, and linear guides are installed on the guide rail mounting plates, and guide rail sliders are installed on the linear guides, and the two guide rail sliders are respectively connected to the support arm Ⅰ and support arm Ⅱ of the circle supporting mechanism; a module motor mounting plate is connected to the other side of the box, and a module motor is installed on the module motor mounting plate. The module motor is coaxially connected to the linear moving module through a coupling Ⅱ, and the linear moving module is connected to the circle supporting main rod of the circle supporting mechanism; a box water inlet and a box water return port are opened on the side of the box to connect with the water circulation unit.

[0008] The inner wall cleaning pipe has an outer diameter of 7mm and an inner diameter of 5mm; the outer wall cleaning pipe has an outer diameter of 7mm and an inner diameter of 5mm, and the axial parallel distance between the inner wall cleaning pipe and the outer wall cleaning pipe is set to 16.5mm.

[0009] The described circle-supporting mechanism comprises a circle-supporting motor, a coupling III, a circle-supporting motor fixing frame, a guide column, a threaded advance and retreat rod, a circle-supporting main rod, an end cover bearing seat, a sleeve, a rotating connecting rod, an outer support plate, a slider groove, a support arm I, a support arm II, a circular seat of the circle-supporting main rod, a slide rail, and a hollow threaded shaft; the described circle-supporting motor is fixed on the circle-supporting motor fixing frame, and the circle-supporting motor fixing frame can move up and down along the guide column, one end of the guide column is fixed on the circular seat of the circle-supporting main rod, and the circular seat of the circle-supporting main rod is provided with a support arm I and a support arm II, which are respectively connected to the guide slider installed on the linear guide rail, and the circle-supporting main rod is connected to the linear moving module; a hollow threaded The hollow threaded shaft has an internal thread which meshes with the external thread of the threaded advance and retreat rod; the upper end of the threaded advance and retreat rod is coaxially fixedly connected to the support motor through a coupling III, the lower end of the threaded advance and retreat rod is interference-connected with the inner circle of the end cover bearing seat, the end face circle of the end cover bearing seat is coaxially fixed on the end face of the sleeve, the inner circle of the sleeve is coaxially fitted with the outer circle of the hollow threaded shaft, a slide rail is provided under the circular seat of the support main rod, the slider groove limits reciprocating movement along the slide rail, the slider groove is fixedly connected to the end of the outer support plate, the outer side surface of the lower part of the outer support plate is an arc-shaped contact surface with the braided artificial blood vessel, the inner side surface of the upper end of the outer support plate is connected to one end of the rotating connecting rod pin, and the other end of the rotating connecting rod is connected to the outer circle pin of the sleeve.

[0010] The circle supporting mechanism is provided with a circle supporting diameter adjustable within the range of 8 to 32 mm.

[0011] The water circulation unit is set to supply water at a temperature of 55-65°C.

[0012] Preferably, the micro-nano bubble generating unit generates ozone micro-nano bubbles, which react with the double bonds of lipids in the bacterial cell wall, penetrate into the bacteria, act on lipoproteins and lipopolysaccharides, change the permeability of the cells, and disinfect the bacteria.

[0013] The present invention also provides a cleaning method of the braided artificial blood vessel micro-nano bubble directional cleaning device, comprising the following steps:

[0014] The braided artificial blood vessel is put on the arc surface of the outer support plate, and the support motor drives the threaded advance and retreat rod to rotate forward. The rotation of the threaded advance and retreat rod drives the end cover bearing seat to move upward, and the end cover bearing seat drives the sleeve to move upward accordingly. At this time, under the action of the rotating connecting rod, the outer support plate fixed on the slider groove is driven to move outward along the slide rail under the circular seat of the support main rod to support the braided artificial blood vessel.

[0015] Pure water at 55-65℃ generated by the water circulation unit is injected into the box through the water inlet. The main round supporting rod moves downward driven by the linear moving module, and the fixed braided artificial blood vessel moves downward synchronously driven by the main round supporting rod, so that the braided artificial blood vessel is completely immersed in the liquid in the box for 30 minutes.

[0016] After the braided artificial blood vessel is soaked for 30 minutes, the micro-nano bubble generating unit is started, and the ozone micro-nano bubbles generated by the micro-nano bubble generating unit enter the inner wall cleaning tube and the outer wall cleaning tube through the inlet of the micro-nano bubble delivery tube, and are ejected from the outlet of the inner wall cleaning tube and the outlet of the outer wall cleaning tube respectively, forming a convection impact to clean the wall of the braided artificial blood vessel; the linear moving module drives the braided artificial blood vessel to move up and down, and the slip ring motor drives the micro-nano bubble delivery tube to rotate. The spiral motion formed by the superposition of the movement of the braided artificial blood vessel and the rotational motion of the micro-nano bubble delivery tube corresponds to the thread of the braided artificial blood vessel. The conical mouth of the micro-nano bubble delivery tube accelerates the micro-nano bubbles, and the micro-nano bubbles are strongly and directionally impacted on the inner and outer wall threads of the braided artificial blood vessel at high speed, strong and direction. Under the impact, the micro-nano bubbles burst, generating microjets and shock waves for cleaning, and the drastic change of the disappearance of the gas-liquid interface will release the energy accumulated by the high concentration of positive and negative ions on the interface, thereby generating a large number of hydroxyl free radicals, degrading pollutants that are difficult to oxidize and decompose, and the reciprocating spiral motion is performed until it is cleaned.

[0017] After cleaning is completed, the linear moving module drives the braided artificial blood vessel to move up to the set position, the circular motor reverses to loosen the braided artificial blood vessel, and the cleaned braided artificial blood vessel is removed.

[0018] Beneficial Effects

[0019] According to the micro-nano bubble directional cleaning device and cleaning method for the braided artificial blood vessel of the present invention, the water circulation unit heats and immerses the braided artificial blood vessel to soften and dissolve the pollutants, and then the micro-nano bubbles are directed to impact on the inner and outer wall threads of the braided artificial blood vessel in a specific pipeline mechanism, and burst under the mutual impact of the inner and outer walls. The heated water environment greatly increases the micro-nano bubble bursting speed, and the bubbles collapse and peel off the dirt layer, removing the dirt in the threads of the braided artificial blood vessel and between the fibers and yarns, so as to ensure the cleanliness requirements of the braided artificial blood vessel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the micro-nano bubble directional flushing unit of the present invention;

[0022] Figure 3 is a cross-sectional view of the micro-nano bubble directional flushing unit of the present invention;

[0023] Figure 4 It is a schematic diagram of the circle-supporting mechanism of the present invention;

[0024] Figure 5 is a cross-sectional view of the circle-supporting mechanism of the present invention;

[0025] Figure 6 is a cross-sectional structural diagram of the micro-nano bubble delivery tube of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the outlet of the inner wall cleaning pipe of the present invention;

[0027] In the figure: 1-micro-nano bubble generating unit, 2-water circulation unit, 3-directional flushing unit, 31-base, 32-slip ring motor, 33-coupling I, 34-slip ring, 341-slip ring fixed end inlet, 342-slip ring rotating end outlet, 35-micro-nano bubble delivery pipe, 351-micro-nano bubble delivery pipe inlet, 352-inner wall cleaning pipe, 353-inner wall cleaning pipe outlet, 354-outer wall cleaning pipe, 355-outer wall cleaning pipe outlet, 356-micro-nano bubble rotating shaft, 36-box, 361-box water inlet, 362-box water return port, 37-braided artificial blood vessel, 38-circular support mechanism, 381 -Supporting motor, 382-coupling III, 383-supporting motor fixing frame, 384-guide column, 385-threaded advance and retreat rod, 386-supporting main rod, 387-end cover bearing seat, 388-sleeve, 389-rotating connecting rod, 3810-outer supporting plate, 3811-slider groove, 3812-support arm I, 3813-support arm II, 3814-supporting main rod circular seat, 3815-slide rail, 3816-hollow threaded shaft, 39-linear guide rail, 310-guide rail slider, 311-guide rail mounting plate, 312-linear moving module, 313-module motor, 314-coupling II, 315-module motor mounting plate. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the embodiments of the present invention. Obviously, the described examples are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

[0029] Reference Figure 1 To Attachment Figure 7 The technical scheme of the directional cleaning device and cleaning method of a braided artificial blood vessel micro-nano bubble of the present invention is further described.

[0030] Example 1

[0031] The invention provides a woven artificial blood vessel micro-nano bubble directional cleaning device, comprising a micro-nano bubble generating unit, a water circulation unit and a directional flushing unit.

[0032] The directional flushing unit comprises a base, a slip ring motor, a coupling I, a slip ring, a micro-nano bubble delivery tube, a box, a circular support mechanism, a linear guide rail, a guide rail slider, a guide rail mounting plate, a linear moving module, a module motor, a coupling II, and a module motor mounting plate. A slip ring motor is installed below the base. The slip ring motor is coaxially connected to the outer circle of the lower end of the micro-nano bubble delivery tube through the coupling I. The micro-nano bubble rotating shaft on the micro-nano bubble delivery tube is coaxially interference connected with the rotating end of the slip ring; a slip ring fixed end inlet is provided at the fixed end of the slip ring, and the slip ring fixed end inlet is connected to the micro-nano bubble generating unit; a slip ring rotating end outlet is provided at the rotating end of the slip ring, and the slip ring rotating end outlet is connected to the inlet pipeline of the micro-nano bubble delivery tube; an inner wall cleaning tube and an outer wall cleaning tube are provided on the micro-nano bubble delivery tube, and the distance between the inner wall cleaning tube and the outer wall cleaning tube is 400mm. An inner wall cleaning pipe outlet and an outer wall cleaning pipe outlet are respectively opened at 5mm from the top of the wall cleaning pipe. The two outlets are conical ports, and the two conical ports are coaxially arranged opposite to each other to form micro-nano bubble counteraction; the fixed end of the slip ring is sealed and connected to the middle position of the bottom surface of the box, the box is fixed above the base, and guide rail mounting plates are respectively installed on the two parallel sides of the box, and linear guides are installed on the guide rail mounting plates, and guide rail sliders are installed on the linear guides, and the two guide rail sliders are respectively connected to the support arm Ⅰ and support arm Ⅱ of the circle supporting mechanism; a module motor mounting plate is connected to the other side of the box, and a module motor is installed on the module motor mounting plate. The module motor is coaxially connected to the linear moving module through a coupling Ⅱ, and the linear moving module is connected to the circle supporting main rod of the circle supporting mechanism; a box water inlet and a box water return port are opened on the side of the box to connect with the water circulation unit.

[0033] The inner wall cleaning pipe is set to have an outer diameter of 7mm and an inner diameter of 5mm. An inner wall cleaning pipe outlet is opened 5mm away from the top of the inner wall cleaning pipe, and the outlet is a tapered mouth; the outer wall cleaning pipe is set to have an outer diameter of 7mm and an inner diameter of 5mm. An outer wall cleaning pipe outlet is opened 5mm away from the top of the outer wall cleaning pipe, and the outlet is a tapered mouth. The inner wall cleaning pipe outlet and the external cleaning pipe outlet are coaxial relative structures to form a hedge setting, and the axial parallel distance between the inner wall cleaning pipe and the outer wall cleaning pipe is set to 16.5mm.

[0034] The circle-supporting mechanism includes a circle-supporting motor, a coupling III, a circle-supporting motor fixing frame, a guide column, a threaded advance and retreat rod, a circle-supporting main rod, an end cover bearing seat, a sleeve, a rotating connecting rod, an outer support plate, a slider groove, a support arm I, a support arm II, a circular seat of the circle-supporting main rod, a slide rail, and a hollow threaded shaft; the circle-supporting motor is fixed on the circle-supporting motor fixing frame, and the circle-supporting motor fixing frame can move up and down along the guide column, one end of the guide column is fixed on the circular seat of the circle-supporting main rod, and the circular seat of the circle-supporting main rod is provided with a support arm I and a support arm II, which are respectively connected to the guide sliders installed on the linear guide rail, and the circle-supporting main rod is connected to the linear moving module; a hollow threaded shaft is provided at the lower end of the center of the circular seat of the circle-supporting main rod The hollow threaded shaft is processed with an internal thread, which meshes with the external thread of the threaded advance and retreat rod; the upper end of the threaded advance and retreat rod is coaxially fixedly connected to the support motor through a coupling III, and the lower end of the threaded advance and retreat rod is interference-connected with the inner circle of the end cover bearing seat, and the end face circle of the end cover bearing seat is coaxially fixed on the end face of the sleeve, and the inner circle of the sleeve is coaxially fitted with the outer circle of the hollow threaded shaft. A slide rail is processed under the circular seat of the support main rod, and the slider groove limits reciprocating movement along the slide rail. The slider groove is fixedly connected to the end of the outer support plate, and one side surface of the outer support plate is processed into an arc shape as a contact surface with the fabric, and the other side surface of the outer support plate is connected to one end of the rotating connecting rod pin shaft, and the other end of the rotating connecting rod is connected to the outer circle pin shaft of the sleeve.

[0035] The circle supporting mechanism is provided with a circle supporting diameter adjustable within the range of 8 to 32 mm.

[0036] The water circulation unit is set to supply water at a temperature of 55°C.

[0037] Preferably, the micro-nano bubble generating unit generates ozone micro-nano bubbles, which react with the double bonds of lipids in the bacterial cell wall, penetrate into the bacteria, act on lipoproteins and lipopolysaccharides, change the permeability of the cells, and disinfect the bacteria.

[0038] The present invention also provides a cleaning method of the braided artificial blood vessel micro-nano bubble directional cleaning device, comprising the following steps:

[0039] A braided artificial blood vessel with a diameter of 8mm is put on the arc surface of the outer support plate, and the support motor drives the threaded advance and retreat rod to rotate forward. The rotation of the threaded advance and retreat rod drives the end cover bearing seat to move upward, and the end cover bearing seat drives the sleeve to move upward accordingly. At this time, under the action of the rotating connecting rod, the outer support plate fixed on the slider groove is driven to move outward along the slide rail under the circular seat of the support main rod to support the braided artificial blood vessel.

[0040] The 55°C pure water generated by the water circulation unit is injected into the box through the water inlet. The main round supporting rod moves downward driven by the linear moving module, and the fixed braided artificial blood vessel moves downward synchronously driven by the main round supporting rod, so that the braided artificial blood vessel is completely immersed in the liquid in the box for 30 minutes.

[0041] After the braided artificial blood vessel is soaked for 30 minutes, the micro-nano bubble generating unit is started, and the ozone micro-nano bubbles generated by the micro-nano bubble generating unit enter the inner wall cleaning tube and the outer wall cleaning tube through the inlet of the micro-nano bubble delivery tube, and are ejected from the outlet of the inner wall cleaning tube and the outlet of the outer wall cleaning tube respectively, forming a convection impact to clean the wall of the braided artificial blood vessel; the linear moving module drives the braided artificial blood vessel to move up and down, and the slip ring motor drives the micro-nano bubble delivery tube to rotate. The spiral motion formed by the superposition of the movement of the braided artificial blood vessel and the rotational motion of the micro-nano bubble delivery tube corresponds to the thread of the braided artificial blood vessel. The conical mouth of the micro-nano bubble delivery tube accelerates the micro-nano bubbles, and the micro-nano bubbles are strongly and directionally impacted on the inner and outer wall threads of the braided artificial blood vessel at high speed, strong and direction. Under the impact, the micro-nano bubbles burst, generating microjets and shock waves for cleaning, and the drastic change of the disappearance of the gas-liquid interface will release the energy accumulated by the high concentration of positive and negative ions on the interface, thereby generating a large number of hydroxyl free radicals, degrading pollutants that are difficult to oxidize and decompose, and the reciprocating spiral motion is performed until it is cleaned.

[0042] After cleaning is completed, the linear moving module drives the braided artificial blood vessel to move up to the set position, the circular motor reverses to loosen the braided artificial blood vessel, and the cleaned braided artificial blood vessel is removed.

[0043] Example 2

[0044] The invention provides a woven artificial blood vessel micro-nano bubble directional cleaning device, comprising a micro-nano bubble generating unit, a water circulation unit and a directional flushing unit.

[0045] The directional flushing unit comprises a base, a slip ring motor, a coupling I, a slip ring, a micro-nano bubble delivery tube, a box, a circular support mechanism, a linear guide rail, a guide rail slider, a guide rail mounting plate, a linear moving module, a module motor, a coupling II, and a module motor mounting plate. A slip ring motor is installed below the base. The slip ring motor is coaxially connected to the outer circle of the lower end of the micro-nano bubble delivery tube through the coupling I. The micro-nano bubble rotating shaft on the micro-nano bubble delivery tube is coaxially interference connected with the rotating end of the slip ring; a slip ring fixed end inlet is provided at the fixed end of the slip ring, and the slip ring fixed end inlet is connected to the micro-nano bubble generating unit; a slip ring rotating end outlet is provided at the rotating end of the slip ring, and the slip ring rotating end outlet is connected to the inlet pipeline of the micro-nano bubble delivery tube; an inner wall cleaning tube and an outer wall cleaning tube are provided on the micro-nano bubble delivery tube, and the distance between the inner wall cleaning tube and the outer wall cleaning tube is 400mm. An inner wall cleaning pipe outlet and an outer wall cleaning pipe outlet are respectively opened at 5mm from the top of the wall cleaning pipe. The two outlets are conical ports, and the two conical ports are coaxially arranged opposite to each other to form micro-nano bubble counteraction; the fixed end of the slip ring is sealed and connected to the middle position of the bottom surface of the box, the box is fixed above the base, and guide rail mounting plates are respectively installed on the two parallel sides of the box, and linear guides are installed on the guide rail mounting plates, and guide rail sliders are installed on the linear guides, and the two guide rail sliders are respectively connected to the support arm Ⅰ and support arm Ⅱ of the circle supporting mechanism; a module motor mounting plate is connected to the other side of the box, and a module motor is installed on the module motor mounting plate. The module motor is coaxially connected to the linear moving module through a coupling Ⅱ, and the linear moving module is connected to the circle supporting main rod of the circle supporting mechanism; a box water inlet and a box water return port are opened on the side of the box to connect with the water circulation unit.

[0046] The inner wall cleaning pipe is set to have an outer diameter of 7mm and an inner diameter of 5mm. An inner wall cleaning pipe outlet is opened 5mm away from the top of the inner wall cleaning pipe, and the outlet is a tapered mouth; the outer wall cleaning pipe is set to have an outer diameter of 7mm and an inner diameter of 5mm. An outer wall cleaning pipe outlet is opened 5mm away from the top of the outer wall cleaning pipe, and the outlet is a tapered mouth. The inner wall cleaning pipe outlet and the external cleaning pipe outlet are coaxial relative structures to form a hedge setting, and the axial parallel distance between the inner wall cleaning pipe and the outer wall cleaning pipe is set to 16.5mm.

[0047] The circle-supporting mechanism includes a circle-supporting motor, a coupling III, a circle-supporting motor fixing frame, a guide column, a threaded advance and retreat rod, a circle-supporting main rod, an end cover bearing seat, a sleeve, a rotating connecting rod, an outer support plate, a slider groove, a support arm I, a support arm II, a circular seat of the circle-supporting main rod, a slide rail, and a hollow threaded shaft; the circle-supporting motor is fixed on the circle-supporting motor fixing frame, and the circle-supporting motor fixing frame can move up and down along the guide column, one end of the guide column is fixed on the circular seat of the circle-supporting main rod, and the circular seat of the circle-supporting main rod is provided with a support arm I and a support arm II, which are respectively connected to the guide sliders installed on the linear guide rail, and the circle-supporting main rod is connected to the linear moving module; a hollow threaded shaft is provided at the lower end of the center of the circular seat of the circle-supporting main rod The hollow threaded shaft is processed with an internal thread, which meshes with the external thread of the threaded advance and retreat rod; the upper end of the threaded advance and retreat rod is coaxially fixedly connected to the support motor through a coupling III, and the lower end of the threaded advance and retreat rod is interference-connected with the inner circle of the end cover bearing seat, and the end face circle of the end cover bearing seat is coaxially fixed on the end face of the sleeve, and the inner circle of the sleeve is coaxially fitted with the outer circle of the hollow threaded shaft. A slide rail is processed under the circular seat of the support main rod, and the slider groove limits reciprocating movement along the slide rail. The slider groove is fixedly connected to the end of the outer support plate, and one side surface of the outer support plate is processed into an arc shape as a contact surface with the fabric, and the other side surface of the outer support plate is connected to one end of the rotating connecting rod pin shaft, and the other end of the rotating connecting rod is connected to the outer circle pin shaft of the sleeve.

[0048] The circle supporting mechanism is provided with a circle supporting diameter adjustable within the range of 8 to 32 mm.

[0049] The water circulation unit is set to supply water at a temperature of 65°C.

[0050] Preferably, the micro-nano bubble generating unit generates ozone micro-nano bubbles, which react with the double bonds of lipids in the bacterial cell wall, penetrate into the bacteria, act on lipoproteins and lipopolysaccharides, change the permeability of the cells, and disinfect the bacteria.

[0051] The present invention also provides a cleaning method of the braided artificial blood vessel micro-nano bubble directional cleaning device, comprising the following steps:

[0052] A 32mm diameter braided artificial blood vessel is put on the arc surface of the outer support plate, and the support motor drives the threaded advance and retreat rod to rotate forward. The rotation of the threaded advance and retreat rod drives the end cover bearing seat to move upward, and the end cover bearing seat drives the sleeve to move upward accordingly. At this time, under the action of the rotating connecting rod, the outer support plate fixed on the slider groove is driven to move outward along the slide rail under the circular seat of the support main rod to support the braided artificial blood vessel.

[0053] The 65°C pure water generated by the water circulation unit is injected into the box through the water inlet. The main round supporting rod moves downward driven by the linear moving module, and the fixed braided artificial blood vessel moves downward synchronously driven by the main round supporting rod, so that the braided artificial blood vessel is completely immersed in the liquid in the box for 30 minutes.

[0054] After the braided artificial blood vessel is soaked for 30 minutes, the micro-nano bubble generating unit is started, and the ozone micro-nano bubbles generated by the micro-nano bubble generating unit enter the inner wall cleaning tube and the outer wall cleaning tube through the inlet of the micro-nano bubble delivery tube, and are ejected from the outlet of the inner wall cleaning tube and the outlet of the outer wall cleaning tube respectively, forming a convection impact to clean the wall of the braided artificial blood vessel; the linear moving module drives the braided artificial blood vessel to move up and down, and the slip ring motor drives the micro-nano bubble delivery tube to rotate. The spiral motion formed by the superposition of the movement of the braided artificial blood vessel and the rotational motion of the micro-nano bubble delivery tube corresponds to the thread of the braided artificial blood vessel. The conical mouth of the micro-nano bubble delivery tube accelerates the micro-nano bubbles, and the micro-nano bubbles are strongly and directionally impacted on the inner and outer wall threads of the braided artificial blood vessel at high speed, strong and direction. Under the impact, the micro-nano bubbles burst, generating microjets and shock waves for cleaning, and the drastic change of the disappearance of the gas-liquid interface will release the energy accumulated by the high concentration of positive and negative ions on the interface, thereby generating a large number of hydroxyl free radicals, degrading pollutants that are difficult to oxidize and decompose, and the reciprocating spiral motion is performed until it is cleaned.

[0055] After cleaning is completed, the linear moving module drives the braided artificial blood vessel to move up to the set position, the circular motor reverses to loosen the braided artificial blood vessel, and the cleaned braided artificial blood vessel is removed.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A woven artificial blood vessel micro-nano bubble directional cleaning device, characterized in that: It includes a micro-nano bubble generating unit, a water circulation unit, and a directional flushing unit; the directional flushing unit includes a base, a slip ring motor, a coupling I, a slip ring, a micro-nano bubble delivery tube, a box, a circle supporting mechanism, a linear guide rail, a guide rail slider, a guide rail mounting plate, a linear moving module, a module motor, a coupling II, and a module motor mounting plate; a slip ring motor is installed below the base, and the slip ring motor is coaxially connected to the outer circle of the lower end of the micro-nano bubble delivery tube through the coupling I, and the micro-nano bubble rotating shaft on the micro-nano bubble delivery tube is coaxially interference connected with the rotating end of the slip ring; a slip ring fixed end inlet is provided at the fixed end of the slip ring, and the slip ring fixed end inlet is connected to the micro-nano bubble generating unit; a slip ring rotating end outlet is provided at the rotating end of the slip ring, and the slip ring rotating end outlet is connected to the inlet pipeline of the micro-nano bubble delivery tube; an inner wall cleaning tube and an outer wall cleaning tube are provided on the micro-nano bubble delivery tube. A cleaning pipe is provided with an inner wall cleaning pipe outlet and an outer wall cleaning pipe outlet 5 mm away from the top of the inner wall cleaning pipe and the outer wall cleaning pipe. The two outlets are conical ports, and the two conical ports are coaxially arranged opposite to each other to form micro-nano bubble counteraction; the fixed end of the slip ring is sealed and connected to the middle position of the bottom surface of the box body, the box body is fixed above the base, and guide rail mounting plates are respectively installed on the two parallel sides of the box body, and linear guide rails are installed on the guide rail mounting plates, and guide rail sliders are installed on the linear guide rails, and the two guide rail sliders are respectively connected to the support arm Ⅰ and the support arm Ⅱ of the circle supporting mechanism; a module motor mounting plate is connected to the other side of the box body, and a module motor is installed on the module motor mounting plate. The module motor is coaxially connected to the linear moving module through a coupling Ⅱ, and the linear moving module is connected to the circle supporting main rod of the circle supporting mechanism; a box water inlet and a box water return port are opened on the side of the box body to connect with the water circulation unit.

2. The directional cleaning device for braided artificial blood vessels with micro-nano bubbles according to claim 1 is characterized in that: The inner wall cleaning pipe has an outer diameter of 7mm and an inner diameter of 5mm; the outer wall cleaning pipe has an outer diameter of 7mm and an inner diameter of 5mm, and the axial parallel distance between the inner wall cleaning pipe and the outer wall cleaning pipe is set to 16.5mm.

3. The directional cleaning device for braided artificial blood vessels with micro-nano bubbles according to claim 1 is characterized in that: The described circle-supporting mechanism comprises a circle-supporting motor, a coupling III, a circle-supporting motor fixing frame, a guide column, a threaded advance and retreat rod, a circle-supporting main rod, an end cover bearing seat, a sleeve, a rotating connecting rod, an outer support plate, a slider groove, a support arm I, a support arm II, a circular seat of the circle-supporting main rod, a slide rail, and a hollow threaded shaft; the described circle-supporting motor is fixed on the circle-supporting motor fixing frame, and the circle-supporting motor fixing frame can move up and down along the guide column, one end of the guide column is fixed on the circular seat of the circle-supporting main rod, and the circular seat of the circle-supporting main rod is provided with a support arm I and a support arm II, which are respectively connected to the guide slider installed on the linear guide rail, and the circle-supporting main rod is connected to the linear moving module; a hollow threaded The hollow threaded shaft has an internal thread which meshes with the external thread of the threaded advance and retreat rod; the upper end of the threaded advance and retreat rod is coaxially fixedly connected to the support motor through a coupling III, the lower end of the threaded advance and retreat rod is interference-connected with the inner circle of the end cover bearing seat, the end face circle of the end cover bearing seat is coaxially fixed on the end face of the sleeve, the inner circle of the sleeve is coaxially fitted with the outer circle of the hollow threaded shaft, a slide rail is provided under the circular seat of the support main rod, the slider groove limits reciprocating movement along the slide rail, the slider groove is fixedly connected to the end of the outer support plate, the outer side surface of the lower part of the outer support plate is an arc-shaped contact surface with the braided artificial blood vessel, the inner side surface of the upper end of the outer support plate is connected to one end of the rotating connecting rod pin, and the other end of the rotating connecting rod is connected to the outer circle pin of the sleeve.

4. The directional cleaning device for micro-nano bubbles of a braided artificial blood vessel according to claim 3 is characterized in that: The circle supporting mechanism has a circle supporting diameter that is adjustable within the range of 8 to 32 mm.

5. The directional cleaning device for braided artificial blood vessels with micro-nano bubbles according to claim 1 is characterized in that: The micro-nano bubble generating unit generates ozone micro-nano bubbles.

6. The directional cleaning device for braided artificial blood vessels with micro-nano bubbles according to claim 1, characterized in that: The water temperature of the water circulation unit is 55-65°C.

7. The cleaning method of the braided artificial blood vessel micro-nano bubble directional cleaning device according to any one of claims 1 to 6, characterized in that: The following steps are involved: The braided artificial blood vessel is put on the arc surface of the outer support plate, and the support motor drives the threaded advance and retreat rod to rotate forward, and the threaded advance and retreat rod rotates to drive the end cover bearing seat to move upward, and the end cover bearing seat drives the sleeve to move upward accordingly. At this time, under the action of the rotating connecting rod, the outer support plate fixed on the slider groove is driven to move outward along the slide rail under the circular seat of the support main rod to support the braided artificial blood vessel; The 55-65℃ pure water generated by the water circulation unit is injected into the box through the water inlet of the box. The main round supporting rod moves downward under the drive of the linear moving module. The fixed braided artificial blood vessel moves downward synchronously under the drive of the main round supporting rod, so that the braided artificial blood vessel is completely immersed in the liquid of the box. The immersion time is 30 minutes. After the braided artificial blood vessel is soaked for 30 minutes, the micro-nano bubble generating unit is started, and the ozone micro-nano bubbles generated by the micro-nano bubble generating unit enter the inner wall cleaning tube and the outer wall cleaning tube through the inlet of the micro-nano bubble delivery tube, and are ejected from the outlet of the inner wall cleaning tube and the outlet of the outer wall cleaning tube respectively, forming a convection impact to clean the wall of the braided artificial blood vessel; the linear moving module drives the braided artificial blood vessel to move up and down, and the slip ring motor drives the micro-nano bubble delivery tube to rotate. The spiral motion formed by the superposition of the movement of the braided artificial blood vessel and the rotational motion of the micro-nano bubble delivery tube corresponds to the thread of the braided artificial blood vessel. The conical mouth of the micro-nano bubble delivery tube accelerates the micro-nano bubbles, and the micro-nano bubbles are strongly and directionally impacted on the inner and outer wall threads of the braided artificial blood vessel at high speed. Under the impact, the micro-nano bubbles burst, generating microjets and shock waves for cleaning, and the drastic change of the disappearance of the gas-liquid interface will release the energy accumulated by the high concentration of positive and negative ions on the interface, thereby generating a large number of hydroxyl free radicals, degrading pollutants that are difficult to oxidize and decompose, and the reciprocating spiral motion is performed until it is cleaned; After cleaning is completed, the linear moving module drives the braided artificial blood vessel to move up to the set position, the circular motor reverses to loosen the braided artificial blood vessel, and the cleaned braided artificial blood vessel is removed.

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