Stepless pressure regulating negative pressure suction device and using method thereof

Abstract

The invention discloses a stepless pressure regulating negative pressure suction device and a use method thereof, and belongs to the technical field of medical instruments, when blades are impacted by a mixture, a plurality of blades drive a connecting shaft and a cutting blade to rotate through a center seat, and the mixture is filtered through filter holes. Residues difficult to filter are isolated in the filter cylinder and cut up by the cutting blade, the situation that the whole suction pipeline is blocked by the large-particle residues is prevented, an injector connector is communicated with an external injector containing cleaning liquid, a water valve, a drain valve and a discharge valve are opened, the injector enables the cleaning liquid in the injector to enter the filter cylinder and the turnover cylinder, and the filter cylinder and the turnover cylinder are separated from each other. And residues which cannot be filtered are discharged into the residue collecting bottle through the discharge pipe, and liquid between the filter cartridge and the inner wall of the turnover cylinder passes through the one-way valve and is discharged into the residue collecting bottle from the discharge valve, so that the purpose of efficiently cleaning the turnover cylinder and the residues in the filter cartridge is achieved, the turnover cylinder does not need to be disassembled for cleaning operation, and cross infection is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a stepless pressure-regulating negative pressure suction device and a using method thereof. Background Technique

[0002] Neurosurgery is a branch of surgery that mainly studies the human nervous system and the injuries, inflammations, tumors, deformities, and the etiologies and pathogenesis of certain genetic metabolic disorders or functional disorders of the associated accessory structures, and explores new diagnosis, treatment, and prevention techniques. Stepless pressure-regulating negative pressure suction in neurosurgery is a technique applied in neurosurgical operations, aiming to precisely adjust the negative pressure of the suction device to meet different surgical requirements and reduce the damage to nerves and blood vessels.

[0003] During the surgical treatment process, pus, blood, liquid, etc. accumulated in the human tissue space or body cavity are guided to the outside through a drainage device. When the existing drainage devices are in use, most of them suck the liquid into an external container by negative pressure. During the suction process, there will be viscous liquids such as blood clots and exudates. These liquids are prone to condense or accumulate in the pipeline during the negative pressure suction process, resulting in blockage. There will also be some tissue fragments, and the accumulation in the pipeline is also likely to cause blockage of the entire negative pressure pipeline, affecting the suction effect. It is necessary to frequently disassemble and clean the blockage. This process is complicated to operate and is also prone to cause cross-infection to external personnel. Summary of the Invention

[0004] The purpose of the present invention is to provide a stepless pressure-regulating negative pressure suction device and a using method thereof to solve the problems mentioned in the above background technique, that is, during the suction process, there will be viscous liquids such as blood clots and exudates. These liquids are prone to condense or accumulate in the pipeline during the negative pressure suction process, resulting in blockage. There will also be some tissue fragments, and the accumulation in the pipeline is also likely to cause blockage of the entire negative pressure pipeline, affecting the suction effect. It is necessary to frequently disassemble and clean the blockage. This process is complicated to operate and is also prone to cause cross-infection to external personnel.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A stepless pressure-regulating negative pressure suction device, including a negative pressure suction device, is characterized in that: a port at the bottom of the negative pressure suction device is connected to a negative pressure bottle body, the bottom of the negative pressure bottle body is connected to a negative pressure pipe, one end of the negative pressure pipe away from the negative pressure bottle body is connected to a collection bottle, one side of the top of the collection bottle is inserted with a conduction component, one end of the conduction component away from the collection bottle is communicated with a turnover cylinder, one end of the turnover cylinder away from the conduction component is threadedly connected with a flushing component, one end of the flushing component away from the turnover cylinder is inserted with a suction component, an isolation component is fixedly installed inside the turnover cylinder, the end of the isolation component penetrates through the turnover cylinder and is communicated with a slag collection bottle, the top of the slag collection bottle is connected to the bottom of the conduction component, and a driving component is fixedly connected inside the isolation component.

[0007] As a further scheme of the present invention, the negative pressure suction device is an ATMOS first aid suction device and is internally provided with a steplessly adjustable negative pressure suction mechanism.

[0008] As a further scheme of the present invention, the conduction component includes an extension pipe, one end of the extension pipe is communicated with the top of the collection bottle, the other end of the extension pipe is designed in a conical shape and is connected to one end of the turnover cylinder, a one-way valve and a stop valve are installed outside the extension pipe, the one-way valve is located on the side of the extension pipe close to the turnover cylinder, a discharge pipe is arranged between the one-way valve and the stop valve, the top end of the discharge pipe is connected to the bottom of the extension pipe, and a discharge valve is arranged at the top end of the discharge pipe.

[0009] As a further scheme of the present invention, the suction component includes a suction pipe, a check valve is arranged on the side of the suction pipe close to the flushing component, and one end of the suction pipe is inserted on the flushing component and is communicated with the flushing component.

[0010] As a further scheme of the present invention, the flushing component includes a connector, one end of the connector away from the suction pipe is fixedly connected with a threaded ring, the threaded ring is threadedly connected to one end of the turnover cylinder, the suction pipe is inserted into the end of the connector away from the threaded ring, a flushing pipe is connected to the bottom of the connector, a water passing valve is arranged at the top end of the flushing pipe, and a syringe connector is arranged at the end of the flushing pipe away from the water passing valve.

[0011] As a further scheme of the present invention, the isolation component includes a diversion cover, one side of the diversion cover away from the flushing component is fixedly connected with a filter cylinder, a plurality of filter holes are arranged outside the filter cylinder, the side of the filter cylinder away from the diversion cover is designed in a conical shape and the end is connected to a discharge pipe, one end of the discharge pipe penetrates through the turnover cylinder and is connected to the top of the slag collection bottle, a discharge valve is fixedly installed outside the discharge pipe, and the diameter of the filter cylinder is smaller than the diameter of the turnover cylinder.

[0012] As a further solution of the present invention, the driving assembly includes a central seat, one end of the central seat close to the flushing assembly is designed as an arc surface, several blades are fixedly connected to the outer wall of the central seat, a bearing member is sleeved on the other end of the central seat, several support rods are fixed outside the bearing member, the ends of the support rods are fixed on the inner wall of the filter cylinder, a connecting shaft is fixedly connected to one end of the central seat close to the bearing member, several groups of cutting blades are fixedly connected to the outer part of the connecting shaft, and the number of cutting blades in each group is three.

[0013] A using method of a stepless pressure regulating negative pressure suction device, the using method includes the following steps:

[0014] When using this stepless pressure regulating negative pressure suction device, the negative pressure suction device works, and the suction force generated by the stepless adjustable negative pressure suction mechanism inside it will be personalized to suit the patient. By changing the resistance value in the circuit of the negative pressure suction device or using pulse width modulation technology to adjust the voltage, the stepless adjustment of the pressure of the suction device is realized. The generated suction force will be transmitted to the collection bottle through the negative pressure bottle body and the negative pressure pipe, and then the collection bottle will transmit the suction force to the conduction assembly, the turnover cylinder and the suction assembly, so that the suction pipe in the suction assembly will suck the mixture of blood clots, tissue fragments and viscous liquids accumulated between human tissues or in body cavities;

[0015] After the mixture passes through the suction pipe and the check valve, the check valve relies on the pressure change of the mixture itself to realize automatic opening and closing. After the mixture flows to the right side of the check valve, it can block the mixture from flowing back to the suction pipe to the left, so that the mixture enters the inside of the isolation assembly through the adapter. The diversion cover in the isolation assembly will guide the mixture to the center of the filter cylinder, so that the mixture contacts the driving assembly inside the filter cylinder. When the multiple blades in the driving assembly are impacted by the mixture, relying on the impact force of the fluid itself as the power source, the multiple blades will drive the central seat to rotate inside the bearing member. The bearing member supports and limits the central seat, thereby improving the stability of the rotation of the blades and the central seat. As the mixture is introduced into the filter cylinder through the blades, the multiple filter holes outside the filter cylinder achieve the purpose of filtering the mixture, and part of the liquid is discharged through the filter holes, so that the liquid is located between the filter cylinder and the turnover cylinder, and the difficult-to-filter blood clots and tissue fragments in the mixture are isolated inside the filter cylinder;

[0016] While the central seat rotates, it drives the connecting shaft at the end to rotate. The connecting shaft then drives multiple groups of cutting blades outside to rotate. During the rotation, the cutting blades break up the residual blood clots and tissue fragments inside the filter cartridge. The broken residues are discharged through the filter holes outside the filter cartridge, and the residues that are difficult to pass through the filter holes remain inside the filter cartridge. A number of filter holes are arranged on multiple surfaces outside the filter cartridge, enabling the filter cartridge to store a large amount of residues without affecting the normal fluidity of the liquid. After the liquid and some residues are discharged through the filter holes, they are introduced into the extension tube in the conduction component from the end of the turnover cylinder. The extension tube guides the liquid and some residues into the collection bottle through a one-way valve and a stop valve for collection. The one-way valve prevents the liquid and some residues from flowing back from the collection bottle and the extension tube into the inside of the turnover cylinder;

[0017] When cleaning the residues inside the filter cartridge, close the stop valve on the extension tube to make the extension tube not connected to the turnover cylinder. Connect the syringe adapter to an external syringe filled with cleaning liquid and open the water valve at the top of the flushing tube. Then open the discharge valve on the discharge tube and the discharge valve at the top of the discharge pipe. By pushing the syringe, the cleaning liquid inside it is introduced into the adapter through the flushing tube and the water valve. The check valve blocks the cleaning liquid from being introduced into the suction tube, causing the cleaning liquid inside the adapter to impact on multiple blades;

[0018] Using the impact force of the fluid as the power source, it rotates through the connecting shaft and the cutting blades. During the rotation of the blades, the central seat, and the cutting blades, the fluidity of the cleaning liquid is increased, thereby improving the cleaning effect on the internal structure of the turnover cylinder. Affected by the impact of the water flow, the residues that cannot be filtered inside the filter cartridge are discharged into the slag collection bottle through the discharge pipe. The side of the filter cartridge away from the guide cover is designed in a conical shape, which plays a role in guiding the residues to effectively introduce them into the discharge pipe and prevent the occurrence of dead corners in slag cleaning. The liquid between the filter cartridge and the inner wall of the turnover cylinder passes through the one-way valve and is discharged into the slag collection bottle through the discharge valve, achieving the purpose of efficiently cleaning the turnover cylinder and the residues inside the filter cartridge without the need to remove the turnover cylinder for cleaning operations;

[0019] When removing the suction component from one end of the flushing component, just pull out the suction tube in the suction component from the adapter. When installing the suction tube, insert its end outside the adapter to complete the conduction work between the flushing component and the suction component, improving the operation convenience. When removing the flushing component from the end of the turnover cylinder, by rotating the adapter, the adapter drives the external thread ring to rotate at the end of the turnover cylinder until the thread ring disengages from the turnover cylinder, exposing the isolation component and the drive component inside the turnover cylinder, facilitating the maintenance or replacement operation of the internal structure of the turnover cylinder. Moreover, the adapter is threadedly connected to the end of the turnover cylinder through the thread ring, thereby improving the connection stability between the two.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The present invention sucks the mixture of blood clots, tissue fragments, and viscous liquid accumulated between human tissues or in body cavities through a suction tube. The mixture enters the interior of the isolation assembly through an adapter. The diversion cover in the isolation assembly guides the mixture towards the center of the filter cartridge, bringing the mixture into contact with the drive assembly inside the filter cartridge. When multiple blades in the drive assembly are impacted by the mixture, relying on the impact force of the fluid itself as the power source, the multiple blades drive the central seat to rotate inside the bearing member. The bearing member supports and positions the central seat, thereby improving the rotational stability of the blades and the central seat. As the mixture is introduced into the filter cartridge through the blades, multiple filter holes outside the filter cartridge achieve the purpose of filtering the mixture, and part of the liquid is discharged through the filter holes, causing the liquid to be located between the filter cartridge and the turnover cartridge. The blood clots and tissue fragments in the mixture that are difficult to filter are isolated inside the filter cartridge, thereby achieving the effect of solid-liquid separation of the mixture and preventing large particle residues from blocking the entire suction pipeline. When cleaning the residues inside the filter cartridge, close the stop valve on the extension tube, connect the syringe adapter to a syringe filled with cleaning liquid outside, and open the water inlet valve, discharge valve, and drain valve. By pushing the syringe, the cleaning liquid inside it enters the filter cartridge and the turnover cartridge through the flushing tube. The residues that cannot be filtered inside the filter cartridge are discharged into the slag collection bottle through the discharge tube, and the liquid between the inner walls of the filter cartridge and the turnover cartridge enters the slag collection bottle through the one-way valve and the drain valve, achieving the purpose of efficiently cleaning the turnover cartridge and the residues inside the filter cartridge without disassembling the turnover cartridge for cleaning operations, improving the operation convenience and preventing cross-infection.

[0022] 2. The present invention uses the impact force of the fluid as the power source to rotate it through the connecting shaft and the cutting blade. During the rotation of the blades, the central seat, and the cutting blade, the fluidity of the cleaning liquid is increased, thereby improving the cleaning effect on the internal structure of the turnover cartridge. Under the impact of the water flow, the residues that cannot be filtered inside the filter cartridge are discharged into the slag collection bottle through the discharge tube. The side of the filter cartridge away from the diversion cover is designed in a conical shape, which plays a role in guiding the residues to effectively introduce them into the discharge tube and prevent the occurrence of dead corners in slag cleaning.

[0023] 3. The present invention drives the connecting shaft at the end to rotate through the central seat, and the connecting shaft drives multiple groups of cutting blades outside to rotate. During the rotation of the cutting blades, the blood clots and tissue fragments remaining inside the filter cartridge are broken up. The broken residues are discharged through the filter holes outside the filter cartridge, and the residues that are difficult to pass through the filter holes remain inside the filter cartridge. Several filter holes are arranged on multiple surfaces outside the filter cartridge, enabling the filter cartridge to store a large amount of residues without affecting the normal fluidity of the liquid. After the liquid and part of the residues are discharged through the filter holes, they are introduced into the extension tube in the conduction assembly from the end of the turnover cartridge. The extension tube guides the liquid and part of the residues into the collection bottle through the one-way valve and the stop valve for collection, ensuring the stability of the entire suction device during operation. Description of the Drawings

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0025] Figure 1 Schematic structural diagram of the three-dimensional view of the present invention;

[0026] Figure 2 Schematic structural diagram of the side view of the present invention;

[0027] Figure 3 Schematic structural diagram of the connection of the turnover cylinder, conduction assembly and flushing assembly of the present invention;

[0028] Figure 4 Schematic structural diagram of the separation of the turnover cylinder and the conduction assembly of the present invention;

[0029] Figure 5 Schematic structural diagram of the isolation assembly of the present invention;

[0030] Figure 6 Schematic structural diagram of the flushing assembly of the present invention;

[0031] Figure 7 Schematic structural diagram of the cross-section of the turnover cylinder of the present invention;

[0032] Figure 8 Schematic structural diagram of the drive assembly of the present invention.

[0033] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0034] 1, negative pressure aspirator; 2, negative pressure bottle body; 3, negative pressure tube; 4, collection bottle; 5, conduction assembly; 501, extension tube; 502, one-way valve; 503, stop valve; 504, discharge tube; 505, discharge valve; 6, suction assembly; 601, suction tube; 602, check valve; 7, turnover cylinder; 8, flushing assembly; 801, adapter; 802, threaded ring; 803, flushing tube; 804, water passing valve; 805, syringe connector; 9, isolation assembly; 901, guide cover; 902, filter cartridge; 903, filter hole; 904, discharge pipe; 905, discharge valve; 10, drive assembly; 101, center seat; 102, blade; 103, bearing part; 104, support rod; 105, connecting shaft; 106, cutting blade; 11, slag collection bottle. Detailed implementation manners

[0035] 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 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 belong to the scope of protection of the present invention.

[0036] Please refer to Figures 1-8 , the present invention provides a technical solution:

[0037] A stepless voltage regulating negative pressure suction device includes a negative pressure suction device 1, characterized in that: a port at the bottom of the negative pressure suction device 1 is connected to a negative pressure bottle body 2, the bottom of the negative pressure bottle body 2 is connected to a negative pressure pipe 3, one end of the negative pressure pipe 3 away from the negative pressure bottle body 2 is connected to a collection bottle 4, one side of the top of the collection bottle 4 is plugged with a conduction component 5, one end of the conduction component 5 away from the collection bottle 4 is connected to a turnover cylinder 7, one end of the turnover cylinder 7 away from the conduction component 5 is threadedly connected to a flushing component 8, one end of the flushing component 8 away from the turnover cylinder 7 is plugged with a suction component 6, an isolation component 9 is fixedly installed inside the turnover cylinder 7, the end of the isolation component 9 penetrates through the turnover cylinder 7 and is connected to a slag collection bottle 11, the top of the slag collection bottle 11 is connected to the bottom of the conduction component 5, and a driving component 10 is fixedly connected inside the isolation component 9.

[0038] As a further solution of the present invention, the negative pressure suction device 1 is an ATMOS first aid suction device and is internally provided with a steplessly adjustable negative pressure suction mechanism;

[0039] During operation, the suction force generated by the steplessly adjustable negative pressure suction mechanism in the negative pressure suction device 1 can be personalized to suit the patient, and the precise suction force can be set according to the situation. By changing the resistance value in the circuit or using pulse width modulation technology to adjust the voltage, the stepless regulation of the pressure of the suction device can be achieved.

[0040] As a further solution of the present invention, the conduction component 5 includes an extension pipe 501, one end of the extension pipe 501 is connected to the top of the collection bottle 4, the other end of the extension pipe 501 is designed in a conical shape and is connected to one end of the turnover cylinder 7, a one-way valve 502 and a stop valve 503 are installed outside the extension pipe 501, the one-way valve 502 is located on the side of the extension pipe 501 close to the turnover cylinder 7, a discharge pipe 504 is provided between the one-way valve 502 and the stop valve 503, the top of the discharge pipe 504 is connected to the bottom of the extension pipe 501, and a discharge valve 505 is provided at the top of the discharge pipe 504;

[0041] During operation, the extension tube 501 introduces liquid and some residues into the collection bottle 4 through the one-way valve 502 and the stop valve 503 for collection. The one-way valve 502 prevents the liquid and some residues from flowing back from the collection bottle 4 and the extension tube 501 into the inside of the turnover cylinder 7; the liquid passes through the one-way valve 502 and is discharged into the slag collection bottle 11 through the discharge valve 505 to facilitate the discharge of the liquid inside the turnover cylinder 7.

[0042] As a further aspect of the present invention, the suction assembly 6 includes a suction tube 601. A check valve 602 is provided on one side of the suction tube 601 close to the flushing assembly 8, and one end of the suction tube 601 is inserted into and communicated with the flushing assembly 8.

[0043] During operation, after the mixture passes through the suction tube 601 and the check valve 602, the check valve 602 relies on the pressure change of the mixture itself to achieve automatic opening and closing. After the mixture flows to the right side of the check valve 602, it can block the mixture from flowing back to the left into the suction tube 601; when removing the suction assembly 6 from one end of the flushing assembly 8, just pull out the suction tube 601 from the flushing assembly 8. When installing the suction tube 601, insert its end into the flushing assembly 8 to conduct, improving the operation convenience.

[0044] As a further aspect of the present invention, the flushing assembly 8 includes an adapter 801. A threaded ring 802 is fixedly connected to one end of the adapter 801 away from the suction tube 601. The threaded ring 802 is threadedly connected to one end of the turnover cylinder 7. The suction tube 601 is inserted into one end of the adapter 801 away from the threaded ring 802. A flushing tube 803 is connected to the bottom of the adapter 801. A water passing valve 804 is provided at the top of the flushing tube 803, and a syringe connector 805 is provided at one end of the flushing tube 803 away from the water passing valve 804.

[0045] During operation, connect the syringe connector 805 to an external syringe filled with cleaning liquid and open the water passing valve 804 at the top of the flushing tube 803. Secondly, open the discharge valve 905 on the discharge tube 904 and the discharge valve 505 at the top of the discharge tube 504. Push the syringe to make the cleaning liquid inside it pass through the flushing tube 803 and the water passing valve 804 into the adapter 801. The check valve 602 will block the cleaning liquid from entering the suction tube 601, facilitating the flushing of the inside of the turnover cylinder 7.

[0046] By rotating the adapter 801, the adapter 801 drives the external threaded ring 802 to rotate at the end of the turnover cylinder 7 until the threaded ring 802 disengages from the turnover cylinder 7, exposing the isolation assembly 9 and the drive assembly 10 inside the turnover cylinder 7, facilitating the maintenance or replacement operation of the internal structure of the turnover cylinder 7. Moreover, the adapter 801 is threadedly connected to the end of the turnover cylinder 7 through the threaded ring 802, improving the connection stability between the adapter 801 and the turnover cylinder 7.

[0047] As a further solution of the present invention, the isolation component 9 includes a flow guide cover 901. On the side of the flow guide cover 901 away from the flushing component 8, a filter cartridge 902 is fixedly connected. A number of filter holes 903 are formed outside the filter cartridge 902. The side of the filter cartridge 902 away from the flow guide cover 901 is designed in a conical shape and a discharge pipe 904 is connected to the end. One end of the discharge pipe 904 penetrates through the turnover cylinder 7 and is connected to the top of the slag collection bottle 11. A discharge valve 905 is fixedly installed outside the discharge pipe 904. The diameter of the filter cartridge 902 is smaller than the diameter of the turnover cylinder 7;

[0048] During operation, the flow guide cover 901 will introduce the mixture towards the center of the filter cartridge 902. The multiple filter holes 903 outside the filter cartridge 902 achieve the purpose of filtering the mixture. Part of the liquid is discharged through the filter holes 903, so that the liquid is located between the filter cartridge 902 and the turnover cylinder 7. The blood clots and tissue fragments that are difficult to filter in the mixture are isolated inside the filter cartridge 902, realizing the solid-liquid separation of the mixture. The number of filter holes 903 is arranged on multiple surfaces outside the filter cartridge 902, so that while the filter cartridge 902 stores a large amount of residue, it will not affect the normal fluidity of the liquid.

[0049] As a further solution of the present invention, the drive component 10 includes a center seat 101. One end of the center seat 101 close to the flushing component 8 is designed in an arc shape. A number of blades 102 are fixedly connected to the outer wall of the center seat 101. The other end of the center seat 101 is sleeved with a bearing member 103. A number of support rods 104 are fixed outside the bearing member 103. The ends of the support rods 104 are fixed to the inner wall of the filter cartridge 902. One end of the center seat 101 close to the bearing member 103 is fixedly connected with a connecting shaft 105. A number of groups of cutting blades 106 are fixedly connected to the outside of the connecting shaft 105, and the number of each group of cutting blades 106 is three;

[0050] During operation, when the blades 102 are impacted by the mixture, relying on the impact force of the fluid itself as the power source, the multiple blades 102 will drive the center seat 101 to rotate inside the bearing member 103. The bearing member 103 supports and limits the center seat 101, thereby improving the rotation stability of the blades 102 and the center seat 101;

[0051] While the center seat 101 rotates, it will drive the connecting shaft 105 at the end to rotate. The connecting shaft 105 drives the multiple groups of cutting blades 106 outside to rotate. During the rotation process, the cutting blades 106 will break up the blood clots and tissue fragments remaining inside the filter cartridge 902. The broken residues will be discharged through the filter holes 903 outside the filter cartridge 902. The residues that are difficult to pass through the filter holes 903 continue to be retained inside the filter cartridge 902, thereby reducing the storage amount of the solid mixture inside the filter cartridge 902;

[0052] The impact force of the fluid is used as the power source to make it rotate through the connecting shaft 105 and the cutting blade 106. During the rotation of the blade 102, the central seat 101, and the cutting blade 106, the fluidity of the cleaning liquid will be increased, thereby improving the cleaning effect on the internal structure of the turnover cylinder 7.

[0053] A method for using a stepless pressure-regulating negative pressure suction device, the method comprising the following steps:

[0054] When using the stepless pressure-regulating negative pressure suction device, the negative pressure suction device 1 operates, and the suction force generated by the stepless adjustable negative pressure suction mechanism inside it will be personalized to suit the patient. By changing the resistance value in the circuit of the negative pressure suction device 1 or using pulse width modulation technology to adjust the voltage, the stepless adjustment of the pressure of the suction device is achieved. The generated suction force will be transmitted to the collection bottle 4 through the negative pressure bottle body 2 and the negative pressure tube 3, and then the collection bottle 4 will transmit the suction force to the conduction assembly 5, the turnover cylinder 7, and the suction assembly 6, so that the suction tube 601 in the suction assembly 6 will suck the mixture of blood clots, tissue fragments, and viscous liquid accumulated between human tissues or in body cavities;

[0055] After the mixture passes through the suction tube 601 and the check valve 602, the check valve 602 relies on the pressure change of the mixture itself to achieve automatic opening and closing. After the mixture flows to the right side of the check valve 602, it can block the mixture from flowing back to the suction tube 601 to the left, so that the mixture enters the inside of the isolation assembly 9 through the adapter 801. The diversion cover 901 in the isolation assembly 9 will guide the mixture to the center of the filter cartridge 902, so that the mixture contacts the drive assembly 10 inside the filter cartridge 902. When the multiple blades 102 in the drive assembly 10 are impacted by the mixture, relying on the impact force of the fluid itself as the power source, the multiple blades 102 will drive the central seat 101 to rotate inside the bearing member 103. The bearing member 103 supports and positions the central seat 101, thereby improving the rotation stability of the blade 102 and the central seat 101. As the mixture is introduced into the filter cartridge 902 through the blade 102, multiple filter holes 903 outside the filter cartridge 902 achieve the purpose of filtering the mixture, and part of the liquid is discharged through the filter holes 903, so that the liquid is located between the filter cartridge 902 and the turnover cylinder 7, and the difficult-to-filter blood clots and tissue fragments in the mixture are isolated inside the filter cartridge 902;

[0056] While rotating, the central seat 101 drives the connecting shaft 105 at the end to rotate, and the connecting shaft 105 drives multiple groups of cutting blades 106 outside to rotate. During the rotation process, the cutting blades 106 break up the residual blood clots and tissue fragments inside the filter cartridge 902. The broken residues are discharged through the filter holes 903 outside the filter cartridge 902, and the residues that are difficult to pass through the filter holes 903 remain inside the filter cartridge 902. A number of filter holes 903 are arranged on multiple surfaces outside the filter cartridge 902, enabling the filter cartridge 902 to store a large amount of residues without affecting the normal fluidity of the liquid. After the liquid and some residues are discharged through the filter holes 903, they are introduced into the extension tube 501 in the conduction assembly 5 from the end of the turnover cylinder 7. The extension tube 501 guides the liquid and some residues into the collection bottle 4 through the one-way valve 502 and the stop valve 503. The setting of the one-way valve 502 prevents the liquid and some residues from flowing back from the collection bottle 4 and the extension tube 501 into the interior of the turnover cylinder 7;

[0057] When cleaning the residues inside the filter cartridge 902, close the stop valve 503 on the extension tube 501 to make the extension tube 501 not connected to the turnover cylinder 7. Connect the syringe adapter 805 to an external syringe filled with cleaning liquid and open the water inlet valve 804 at the top of the flushing tube 803. Then open the discharge valve 905 on the discharge pipe 904 and the discharge valve 505 at the top of the discharge pipe 504. By pushing the syringe, the cleaning liquid inside it is introduced into the adapter 801 through the flushing tube 803 and the water inlet valve 804. The check valve 602 blocks the cleaning liquid from entering the suction tube 601, causing the cleaning liquid inside the adapter 801 to impact on the multiple blades 102;

[0058] Using the impact force of the fluid as the power source, it rotates through the connecting shaft 105 and the cutting blades 106. During the rotation process, the blades 102, the central seat 101, and the cutting blades 106 increase the fluidity of the cleaning liquid, thereby improving the cleaning effect on the internal structure of the turnover cylinder 7. Affected by the impact of the water flow, the residues that cannot be filtered inside the filter cartridge 902 are discharged into the slag collection bottle 11 through the discharge pipe 904. The side of the filter cartridge 902 away from the flow guide cover 901 is designed in a conical shape, which plays a role in guiding the residues to effectively introduce them into the discharge pipe 904, preventing the occurrence of dead corners in slag cleaning. The liquid between the filter cartridge 902 and the inner wall of the turnover cylinder 7 passes through the one-way valve 502 and is discharged into the slag collection bottle 11 through the discharge valve 505, achieving the purpose of efficiently cleaning the turnover cylinder 7 and the residues inside the filter cartridge 902 without the need to remove the turnover cylinder 7 for cleaning operations;

[0059] When removing the suction component 6 from one end of the flushing component 8, simply unplug the suction tube 601 in the suction component 6 from the adapter 801. When installing the suction tube 601, insert its end outside the adapter 801 to complete the conduction work between the flushing component 8 and the suction component 6, improving the operation convenience. When removing the flushing component 8 from the end of the turnover cylinder 7, by rotating the adapter 801, the adapter 801 drives the external threaded ring 802 to rotate at the end of the turnover cylinder 7 until the threaded ring 802 disengages from the turnover cylinder 7, exposing the isolation component 9 and the drive component 10 inside the turnover cylinder 7, facilitating the maintenance or replacement operation of the internal structure of the turnover cylinder 7. Moreover, the adapter 801 is threadedly connected to the end of the turnover cylinder 7 through the threaded ring 802, thereby improving the connection stability between the two.

Claims

1. A stepless voltage regulating negative pressure suction device, comprising a negative pressure suction apparatus (1), characterized in that: A port at the bottom of the negative pressure suction device (1) is connected to a negative pressure bottle body (2). The bottom of the negative pressure bottle body (2) is connected to a negative pressure pipe (3). One end of the negative pressure pipe (3) far from the negative pressure bottle body (2) is connected to a collection bottle (4). One side of the top of the collection bottle (4) is plugged with a conduction component (5). One end of the conduction component (5) far from the collection bottle (4) is communicated with a turnover cylinder (7). One end of the turnover cylinder (7) far from the conduction component (5) is threadedly connected with a flushing component (8). One end of the flushing component (8) far from the turnover cylinder (7) is plugged with a suction component (6). An isolation component (9) is fixedly installed inside the turnover cylinder (7). The end of the isolation component (9) penetrates through the turnover cylinder (7) and is communicated with a slag collection bottle (11). The top of the slag collection bottle (11) is communicated with the bottom of the conduction component (5). A driving component (10) is fixedly connected inside the isolation component (9).

2. The negative pressure suction device with stepless voltage regulation according to claim 1, characterized in that: The negative pressure suction device (1) is an ATMOS first aid suction device and is internally provided with a steplessly adjustable negative pressure suction mechanism.

3. The negative pressure suction device with stepless voltage regulation according to claim 1, characterized in that: The conduction component (5) includes an extension pipe (501). One end of the extension pipe (501) is communicated with the top of the collection bottle (4). The other end of the extension pipe (501) is designed in a conical shape and is communicated with one end of the turnover cylinder (7). A one-way valve (502) and a stop valve (503) are installed outside the extension pipe (501). The one-way valve (502) is located on the side of the extension pipe (501) close to the turnover cylinder (7). A discharge pipe (504) is arranged between the one-way valve (502) and the stop valve (503). The top end of the discharge pipe (504) is communicated with the bottom of the extension pipe (501). A discharge valve (505) is arranged at the top end of the discharge pipe (504).

4. The negative pressure suction device with stepless voltage regulation according to claim 1, characterized in that: The suction component (6) includes a suction pipe (601). A check valve (602) is arranged on the side of the suction pipe (601) close to the flushing component (8). One end of the suction pipe (601) is plugged on the flushing component (8) and is communicated with the flushing component (8).

5. The negative pressure suction device with stepless pressure regulation according to claim 4, characterized in that: The flushing component (8) includes an adapter (801). One end of the adapter (801) far from the suction pipe (601) is fixedly connected with a threaded ring (802). The threaded ring (802) is threadedly connected to one end of the turnover cylinder (7). The suction pipe (601) is plugged on the end of the adapter (801) far from the threaded ring (802). A flushing pipe (8) is connected to the bottom of the adapter (801). A water passing valve (804) is arranged at the top end of the flushing pipe (803). A syringe connector (805) is arranged at the end of the flushing pipe (803) far from the water passing valve (804).

6. The negative pressure suction device with stepless voltage regulation according to claim 1, characterized in that: The isolation component (9) includes a flow deflector (901). A filter cartridge (902) is fixedly connected to the side of the flow deflector (901) away from the flushing component (8). A plurality of filter holes (903) are formed in the outer side of the filter cartridge (902). The side of the filter cartridge (902) away from the flow deflector (901) is designed in a conical shape and a discharge pipe (904) is connected to the end. One end of the discharge pipe (904) penetrates through the turnover cylinder (7) and is connected to the top of the slag collection bottle (11). A discharge valve (905) is fixedly installed on the outer side of the discharge pipe (904). The diameter of the filter cartridge (902) is smaller than the diameter of the turnover cylinder (7).

7. The negative pressure suction device with stepless voltage regulation according to claim 6, characterized in that: The drive component (10) includes a central seat (101). One end of the central seat (101) close to the flushing component (8) is designed in an arc shape. A plurality of blades (102) are fixedly connected to the outer wall of the central seat (101). The other end of the central seat (101) is sleeved with a bearing member (103). A plurality of support rods (104) are fixed to the outside of the bearing member (103). The ends of the support rods (104) are fixed to the inner wall of the filter cartridge (902). A connecting shaft (105) is fixedly connected to one end of the central seat (101) close to the bearing member (103). A plurality of groups of cutting blades (106) are fixedly connected to the outer side of the connecting shaft (105), and the number of each group of cutting blades (106) is three.

8. A method for using a stepless pressure-regulating negative pressure suction device, which is a stepless pressure-regulating negative pressure suction device according to any one of claims 1-7, characterized in that, The usage method includes the following steps: When using the stepless voltage regulating negative pressure suction device, the negative pressure suction device (1) works, and the suction force generated by the stepless adjustable negative pressure suction mechanism inside it will be personalized to suit the patient. The voltage is adjusted by changing the resistance value in the circuit of the negative pressure suction device (1) or by using pulse width modulation technology, so as to realize the stepless adjustment of the pressure of the suction device. The generated suction force will be transmitted to the collection bottle (4) through the negative pressure bottle body (2) and the negative pressure pipe (3), and then the collection bottle (4) will transmit the suction force to the conduction component (5), the turnover cylinder (7) and the suction component (6), so that the suction pipe (601) in the suction component (6) will suck the mixture of blood clots, tissue fragments and viscous liquids accumulated in the human tissue space or body cavity; After the mixture passes through the suction tube (601) and the check valve (602), the check valve (602) realizes automatic opening and closing depending on the pressure change of the mixture itself. After the mixture flows to the right side of the check valve (602), it can prevent the mixture from flowing back to the suction tube (601) to the left, so that the mixture enters the inside of the isolation assembly (9) through the adapter (801). The flow guide cover (901) in the isolation assembly (9) will guide the mixture to the center of the filter cartridge (902), so that the mixture contacts the drive assembly (10) inside the filter cartridge (902). When the multiple blades (102) in the drive assembly (10) are impacted by the mixture, relying on the impact force of the fluid itself as the power source, the multiple blades (102) will drive the center seat (101) to rotate inside the bearing member (103). The bearing member (103) supports and positions the center seat (101), thereby improving the rotational stability of the blade (102) and the center seat (101). As the mixture is introduced into the filter cartridge (902) through the blade (102), multiple filter holes (903) outside the filter cartridge (902) achieve the purpose of filtering the mixture, and part of the liquid is discharged through the filter holes (903), so that the liquid is located between the filter cartridge (902) and the turnover cylinder (7). The blood clots and tissue fragments that are difficult to filter in the mixture are isolated inside the filter cartridge (902); While the center seat (101) rotates, it will drive the connecting shaft (105) at the end to rotate, and the connecting shaft (105) will drive multiple groups of cutting blades (106) outside to rotate. During the rotation of the cutting blades (106), the blood clots and tissue fragments remaining inside the filter cartridge (902) will be broken up, and the broken residues will be discharged through the filter holes (903) outside the filter cartridge (902). The residues that are difficult to pass through the filter holes (903) continue to remain inside the filter cartridge (902). Several filter holes (903) are arranged on multiple surfaces outside the filter cartridge (902), so that while the filter cartridge (902) stores a large amount of residues, it will not affect the normal fluidity of the liquid. After the liquid and part of the residues are discharged through the filter holes (903), they will be introduced into the extension tube (501) in the conduction assembly (5) from the end of the turnover cylinder (7). The extension tube (501) introduces the liquid and part of the residues into the collection bottle (4) through the one-way valve (502) and the stop valve (503) for collection. The setting of the one-way valve (502) prevents the liquid and part of the residues from flowing back from the collection bottle (4) and the extension tube (501) to the inside of the turnover cylinder (7); When cleaning the residue inside the filter cartridge (902), close the stop valve (503) on the extension pipe (501) to make the extension pipe (501) and the turnover cylinder (7) in a non-connected state. Connect the syringe adapter (805) to a syringe filled with cleaning liquid outside and open the water inlet valve (804) at the top of the flushing pipe (803). Secondly, open the discharge valve (905) on the discharge pipe (904) and the discharge valve (505) at the top of the discharge pipe (504). By pushing the syringe, the cleaning liquid inside it is introduced into the adapter (801) through the flushing pipe (803) and the water inlet valve (804). The check valve (602) will block the cleaning liquid from being introduced into the suction pipe (601), and the cleaning liquid inside the adapter (801) impacts on multiple blades (102). Using the impact force of the fluid as the power source, it rotates through the connecting shaft (105) and the cutting blade (106). During the rotation of the blades (102), the central seat (101) and the cutting blade (106), the fluidity of the cleaning liquid will be increased, thereby improving the cleaning effect on the internal structure of the turnover cylinder (7). Affected by the impact of the water flow, the residue that cannot be filtered inside the filter cartridge (902) is discharged into the slag collection bottle (11) through the discharge pipe (904). The side of the filter cartridge (902) away from the flow guide cover (901) is designed in a conical shape, which plays a role in guiding the residue to effectively introduce it into the discharge pipe (904) and prevent the occurrence of dead corners in slag cleaning. The liquid between the inner wall of the filter cartridge (902) and the turnover cylinder (7) passes through the one-way valve (502) and is discharged into the slag collection bottle (11) through the discharge valve (505), achieving the purpose of efficiently cleaning the inside of the turnover cylinder (7) and the filter cartridge (902) without removing the turnover cylinder (7) for cleaning operations. When removing the suction assembly (6) from one end of the flushing assembly (8), just pull out the suction pipe (601) in the suction assembly (6) from the adapter (801). When installing the suction pipe (601), insert its end outside the adapter (801) to complete the conduction work between the flushing assembly (8) and the suction assembly (6), improving the operation convenience. When removing the flushing assembly (8) from the end of the turnover cylinder (7), by rotating the adapter (801), the adapter (801) drives the external threaded ring (802) to rotate at the end of the turnover cylinder (7) until the threaded ring (802) disengages from the turnover cylinder (7), exposing the isolation assembly (9) and the drive assembly (10) inside the turnover cylinder (7), facilitating the maintenance or replacement operation of the internal structure of the turnover cylinder (7). Moreover, the adapter (801) is threadedly connected to the end of the turnover cylinder (7) through the threaded ring (802), thereby improving the connection stability between the two.

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