CN114832169B - Vacuum pipeline system and use method thereof - Google Patents

Abstract

The invention discloses a vacuum pipeline system and a using method thereof, wherein the vacuum pipeline system comprises an ultrasonic hand piece; a vacuum pump; a waste receiving box; the vacuum pipeline at least comprises a primary pipeline, a secondary pipeline and a tertiary pipeline; the primary sensor is communicated with the primary pipeline; the primary control valve is communicated with the primary pipeline; the secondary sensor is communicated with the secondary pipeline; the secondary control valve is communicated with the secondary pipeline and used for communicating with the atmosphere so as to adjust the vacuum pressure in the secondary pipeline; and the control system is used for receiving the pressure values monitored by the primary sensor and the secondary sensor and controlling the ventilation flow of the primary control valve and the secondary control valve. The invention sets the primary pipeline and the secondary pipeline to accurately and efficiently monitor the vacuum pressure in the ultrasonic hand piece, and adjusts the vacuum pressure in real time, and simultaneously performs blockage monitoring and blockage adjustment.

Description

Vacuum pipeline system and use method thereof

Technical Field

The invention relates to the technical field of medical equipment, in particular to a vacuum pipeline system for ultrasonic attraction and a using method thereof.

Background

The ultrasonic suction has the advantages of small damage, less bleeding during operation and clean operation field. The ultrasonic aspirator probe has little influence on surrounding tissues and is obviously superior to the devices for cutting tumors such as common aspirator or tumor-taking forceps. So long as the operation is proper, the structure around the lesion is not damaged.

However, the general ultrasonic suction has the following drawbacks: first, the common ultrasonic suction system has no negative pressure regulating function, can only use constant negative pressure and power which are set when the patient goes out of the field to perform the operation, and cannot meet the requirements of different operations. Second, because the negative pressure cannot be regulated and controlled, and the real working condition of the cutter head end cannot be monitored, the cutter head power of the common ultrasonic suction system cannot be regulated to the ideal power required by the operation.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a vacuum pipeline system and a using method thereof.

The aim of the invention is achieved by the following technical scheme:

a vacuum line system for monitoring/adjusting vacuum pressure providing an ultrasonic aspiration terminal during an ultrasonic aspiration procedure, comprising,

an ultrasonic handpiece having an aspiration terminal;

a vacuum pump providing vacuum pressure;

a waste receiving box;

a vacuum line comprising at least a primary line, a secondary line, and a tertiary line, the waste receiving cassette being in communication with the vacuum pump through the primary line, the waste receiving cassette being in communication with the atmosphere through the secondary line, the waste receiving cassette being in communication with the ultrasonic handpiece through the tertiary line;

the primary sensor is communicated with the primary pipeline and used for monitoring the vacuum pressure value of the vacuum pump;

the primary control valve is communicated with the primary pipeline and is used for communicating with the atmosphere so as to regulate the vacuum pressure in the primary pipeline;

the secondary sensor is communicated with the secondary pipeline and is used for monitoring the vacuum pressure value of the waste receiving box;

the secondary control valve is communicated with the secondary pipeline and used for communicating with the atmosphere so as to adjust the vacuum pressure in the secondary pipeline;

the control system is used for receiving the vacuum pressure values monitored by the primary sensor and the secondary sensor and controlling the ventilation flow of the primary control valve and the secondary control valve;

the exhaust end of the vacuum pump is provided with a second reversing valve, and the second reversing valve has a switching function and is used for selectively communicating with the atmosphere through a second branch or communicating with the diode line through a third branch.

The air inlet end of the vacuum pump is communicated with the primary pipeline, a first reversing valve is arranged on the primary pipeline and has a switching function and is used for selectively communicating the primary pipeline or selectively communicating the atmosphere through a fourth branch, and the first reversing valve and the second reversing valve jointly act to enable an air channel to block a backwash air channel to be formed among the primary pipeline, the secondary pipeline and the tertiary pipeline.

Preferably, a pinch valve is communicated with the third-level pipeline, and the pinch valve is an electromagnetic brake valve.

Preferably, the secondary and tertiary lines are connected to a first connector that is built into the waste receiving cassette.

Preferably, the first connector has a radially enlarged diameter and an outlet thereof, and the outlet is adjacent to a side wall of the waste receiving cassette, the side wall being inclined inwardly.

Preferably, the primary control valve is disposed on a first branch, and the first branch is communicated with the primary pipeline through a second joint.

Preferably, the first-stage pipeline is communicated with an air storage tank, and the air storage tank is arranged between the air inlet end of the vacuum pump and the first reversing valve.

Preferably, a first filter is arranged at the joint of the primary pipeline and the waste receiving box, and a second filter is arranged at the joint of the secondary pipeline and the waste receiving box.

Preferably, the second branch is communicated with a diffuser.

Preferably, the ultrasonic handpiece is in communication with an irrigation source through an irrigation line.

Preferably, the control system comprises a host and a fluid box, wherein the control system is internally arranged in the host, the fluid box is connected to the host in a pluggable mode, and at least part of the tertiary pipeline and the flushing pipeline are internally arranged in the fluid box.

The beneficial effects of the invention are mainly as follows:

1. the scheme is that a primary sensor is arranged to monitor the vacuum pressure of the vacuum pump in real time so as to truly reflect the vacuum pressure of a primary pipeline; the secondary sensor is arranged to monitor the vacuum pressure in the waste receiving box, and the tertiary pipeline and the secondary pipeline are connected to the first joint, and the primary pipeline and the secondary pipeline are not directly connected, so that the secondary sensor can not be influenced by the vacuum pump, and truly reflect the vacuum pressure of the ultrasonic hand piece, thereby improving the accuracy of monitoring the vacuum pressure of the ultrasonic hand piece;

2. the primary pipeline and the secondary pipeline in the scheme are not directly connected with the ultrasonic hand piece, so that the influence of the replacement of the ultrasonic hand piece on the vacuum pressure in the whole vacuum system can be reduced as much as possible, the tertiary pipeline can be directly closed by utilizing the pinch valve during the replacement of the ultrasonic hand piece, the air pressure fluctuation in the vacuum pipeline is reduced, the efficiency of the replacement of the ultrasonic hand piece is improved, and the operation is more flexible;

3. the primary control valve and the secondary control valve are arranged to coordinate to perform air pressure adjustment, so that the flexibility and the rapidity of the air pressure adjustment are improved;

4. the primary reversing valve and the secondary reversing valve are arranged to have combined action, so that a gas path blocking backwash gas path is formed among the primary pipeline, the secondary pipeline and the tertiary pipeline, and blocking can be removed after blocking is generated;

5. the solenoid valve of electromagnetic braking is arranged to control the opening and closing of the triode pipeline, so that different use modes can be adopted by the vacuum system, and compared with a pneumatic valve, the load of a vacuum pump can be reduced, the fluctuation of air pressure in the vacuum pipeline is reduced, the accuracy and efficiency of regulating the pressure are improved, and the cost of the vacuum pump is also reduced.

Drawings

The technical scheme of the invention is further described below with reference to the accompanying drawings:

fig. 1: schematic diagrams of embodiments of the present invention;

fig. 2: schematic diagrams of embodiments of the present invention;

fig. 3: a schematic view of a waste receiving cassette in an embodiment of the invention.

Detailed Description

The present invention will be described in detail below with reference to specific embodiments shown in the drawings. The embodiments are not limited to the present invention, and structural, methodological, or functional modifications of the invention from those skilled in the art are included within the scope of the invention.

In the description of the embodiments, it should be noted that the positional or positional relationship indicated by the terms such as "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in the specific orientation, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the scheme, the direction approaching the operator is the near end, and the direction separating from the operator is the far end, with reference to the operator.

As shown in fig. 1 to 2, the present invention discloses a vacuum piping system for monitoring/adjusting vacuum pressure providing an ultrasonic suction terminal in an ultrasonic suction operation, comprising an ultrasonic hand piece 1 having asuction terminal 101; a vacuum pump 2, wherein the vacuum pump 2 forms the required vacuum pressure by controlling the flow; awaste receiving box 3; a vacuum line comprising at least aprimary line 401, asecondary line 402 and atertiary line 403, saidwaste receiving cassette 3 being in communication with said vacuum pump 2 through saidprimary line 401, saidwaste receiving cassette 3 being in communication with the atmosphere through saidsecondary line 402, saidwaste receiving cassette 3 being in communication with said ultrasound handpiece 1 through saidtertiary line 403; aprimary sensor 5, which is connected to theprimary pipeline 401 and is used for monitoring the vacuum pressure value near the vacuum pump 2; a primary control valve 6, which is communicated with theprimary pipeline 401 and is used for communicating with the atmosphere so as to adjust the vacuum pressure in theprimary pipeline 401; a secondary sensor 7, which is connected to thesecondary pipeline 402 and is used for monitoring the vacuum pressure value of thewaste receiving box 3; asecondary control valve 8, which is communicated with thesecondary pipeline 402 and is used for communicating with the atmosphere so as to adjust the vacuum pressure in thesecondary pipeline 402; and the control system is used for receiving the vacuum pressure values monitored by theprimary sensor 5 and the secondary sensor 7 and controlling the ventilation flow of the primary control valve 6 and thesecondary control valve 8. According to the invention, theprimary sensor 5 is arranged to monitor the vacuum pressure of the vacuum pump 2, and the secondary sensor 7 is arranged to monitor the vacuum pressure of thewaste receiving box 3, so that the influence of the vacuum pump 2 on the secondary sensor 7 is avoided, and the large air pressure fluctuation is avoided to the whole vacuum pipeline when the ultrasonic handheld piece 1 is replaced, the unnecessary adjustment time is increased, and the use efficiency and the accuracy of the whole vacuum pipeline system are improved.

In this embodiment, in addition to theprimary sensor 5 and the secondary sensor 7, one or more sensors may be disposed in parallel on theprimary pipeline 401 and thesecondary pipeline 402, for monitoring the states of theprimary pipeline 401 and thesecondary pipeline 402, such as a flow sensor, a humidity sensor, and the like, and in other embodiments, another pressure sensor may be disposed in cooperation with theprimary sensor 5 or the secondary sensor 7 to monitor the pressure difference between theprimary pipeline 401 and thesecondary pipeline 402.

As shown in fig. 2 and 3, the secondary andtertiary pipelines 402 and 403 are connected to afirst connector 411, and thefirst connector 411 is built into thewaste receiving box 3. Thefirst connector 411 is communicated with the interior of thewaste receiving box 3, so that the secondary sensor 7 can monitor the flow rate in thewaste receiving box 3 in real time to acquire a vacuum pressure value, and the vacuum pressure value in thewaste receiving box 3 is equivalent to the vacuum pressure value in the ultrasonic handpiece 1 because thefirst connector 411 is connected with thesecondary pipeline 402 and thetertiary pipeline 403, namely, the secondary sensor 7 can rapidly and accurately reflect the internal vacuum pressure change of the ultrasonic handpiece 1 in real time by monitoring the vacuum pressure value in thewaste receiving box 3. Further, theprimary pipeline 401 and thesecondary pipeline 402 are not directly connected, so that the secondary sensor 7 can not be affected by the vacuum pump 2, and truly reflect the vacuum pressure of the ultrasonic hand piece 1, thereby improving the accuracy of monitoring the vacuum pressure of the ultrasonic hand piece 1.

Specifically,secondary line 402 andtertiary line 403 are connected tofirst connector 411, andfirst connector 411 is built into the structure ofwaste receiving cassette 3. The vacuum pipeline system can effectively regulate and control the pressure in the vacuum pipeline in the disconnection process of the ultrasonic hand piece 1, and the pressure regulation and control is not needed after the ultrasonic hand piece 1 is communicated. By doing so, the response time of pressure regulation of the system can be effectively reduced, and the waiting time of operation is reduced.

The vacuum line system according to the present embodiment mainly adjusts the vacuum degree of thesuction terminal 101 by adjusting the operation flow rate of the vacuum pump 2. In addition, the magnitude of the vacuum in thewaste receiving cassette 3 directly affects the magnitude of theattraction terminal 101 directly connected thereto. That is, controlling the vacuum degree in thewaste receiving box 3 can achieve the effect of controlling the vacuum degree of thesuction terminal 101. Based on this, in the present embodiment, when thepinch valve 14 blocks the flow of thetertiary line 403 by braking, the magnitude of the vacuum in thewaste receiving cassette 3 can be adjusted in advance to quickly reach the pressure required for thesuction terminal 101 in the ultrasonic hand piece 1 when thepinch valve 14 releases thetertiary line 403. By doing so, not only is the operation response performance better, but also the operability is better when coping with blockage, and the disassembly and the maintenance of the ultrasonic hand piece 1 are facilitated.

In this embodiment, thesecondary line 402 andtertiary line 403 are connected to afirst connector 411, and thefirst connector 411 is built into thewaste receiving box 3. As shown in fig. 3, the emulsion formed by thesuction terminal 101 of the ultrasonic hand piece 1 by mixing the surgical waste with the surgical rinse solution sucked during the surgery is easily sucked into thewaste receiving box 3, and more foam is easily generated due to the rapid suction, so that the volume of the emulsion is rapidly increased, and thus the reverse suction is easily generated at thefirst connector 411, thereby causing thefirst connector 411 to be blocked. In order to reduce clogging at the first joint 411, the first joint 411 is inclined, and the diameter of the first joint 411 is gradually enlarged in its radial direction to reduce the flow rate of surgical waste and facilitate the outflow of surgical waste. The outlet is located adjacent to the side wall of thewaste receiving cassette 3, which is inclined inwardly so that surgical waste can be deposited down the side wall of thewaste receiving cassette 3 into thewaste receiving cassette 3 to minimize the generation of foam and prevent suck-back of surgical waste from clogging thefirst connector 411.

In other possible embodiments, to prevent the foaming of the mixed emulsion of irrigation fluid and resected tissue fragments sucked out by theultrasonic suction terminal 101 within the suction bottle, a rapid increase in volume may easily result in an overfill of thewaste receiving cassette 3. A waste box can also be connected in series between thetertiary pipeline 403 and thewaste receiving box 3 for buffering, and the tops of the two waste boxes are connected through a pipeline, so that only gas is allowed to circulate, waste liquid and foam are blocked from flowing in, and the effect of reducing the blockage of the first joint 411 is achieved.

Further, apinch valve 14 is connected to thetertiary line 403, and thepinch valve 14 is a non-pneumatic valve, such as a motor-braked valve, a solenoid valve, etc. In the preferred embodiment, thepinch valve 14 is preferably an electromagnetic brake valve, compared with the pneumatic valve used in the existing vacuum system, thepinch valve 14 in the scheme does not need to be driven by the vacuum pump 2, theprimary pipeline 401 does not need to always keep high pressure to drive the braking of thepinch valve 14, so that the burden of the vacuum pump 2 is reduced, the cost is reduced, larger air pressure fluctuation generated in the vacuum pipeline due to thepinch valve 14 is avoided, and the accuracy and efficiency of regulating the vacuum pressure by the vacuum pipeline are improved.

Furthermore, compared with the traditional pneumatic valve, thepinch valve 14 in the embodiment adopts a non-pneumatic valve, so that the vacuum pump 2 does not need to meet the dual requirements of the pneumatic valve of thepinch valve 14 and the regulation and control of the air pressure in the vacuum pipeline in the process of selecting the model, the pressure in the vacuum pump 2 and thewaste receiving box 3 does not need to always keep higher vacuum degree to brake thepinch valve 14, the service lives of the vacuum pump 2 and thepinch valve 14 are prolonged, the flexibility of the pressure control of the vacuum pump 2 is effectively improved, and the regulation performance of the air pressure is obviously improved in the system working mode. The suction pressure adjustment method performed by the vacuum line system is also substantially innovative due to the difference in the above-mentioned air pressure adjustment methods, which will be described in detail below. The vacuum line system in this embodiment has one or more modes of operation, as shown in fig. 1, with thepinch valve 14 in the preferred embodiment being controlled to open and close by a foot pedal 18 to switch between the different modes of operation. Of course, in other possible embodiments, thepinch valve 14 may be connected to other possible control ends for opening and closing control.

Specifically, the vacuum pipe system has at least a standard mode and a synchronous mode. In standard mode, thepinch valve 14 is left open, independently of the foot pedal 18, to keep thetertiary line 403 in communication, thesuction terminal 101 being in communication with thewaste receiving cassette 3, the vacuum pump 2. In the synchronous mode, the foot pedal 18 controls the opening and closing of thepinch valve 14, and when the foot pedal 18 is not depressed, thepinch valve 14 is in a closed state to shut off thetertiary line 403 so that thesuction terminal 101 is not communicated with thewaste receiving case 3; when the foot pedal 18 is depressed, thepinch valve 14 is opened, so that thetertiary line 403 is maintained in flow communication, and thesuction terminal 101 communicates with thewaste receiving cassette 3, the vacuum pump 2. Different operation modes are used for meeting different operation demands, and the practicability and the use flexibility of the vacuum pipeline system are improved.

In the system, the magnitude of the vacuum in thewaste receiving cassette 3 affects the magnitude of the attractive force of thesuction terminal 101 of the ultrasonic hand piece 1 to which it is directly connected. The highest vacuum level achievable by the entire vacuum line system is equivalent to the exhaust efficiency provided by the vacuum source 2. In the synchronous mode, the connection between thesuction terminal 101 and the vacuum source 2 is cut off, since suction is not allowed to reach the ultrasound handpiece 1 when the foot pedal 18 is not depressed. At this time, the vacuum degree in thewaste receiving cassette 3 is adjusted in advance to the set target parameter by the primary control valve 6 and thesecondary control valve 8. Once the foot pedal 18 is depressed, thepinch valve 14 is released. Throughtertiary pipeline 403, the vacuum that sets up in advance in thewaste receiving box 3 is immediately quick is transmittedsuction terminal 101 reaches the required suction of operation, improves whole vacuum piping system's operating efficiency, improves the convenience of use, promotes the regulation performance to atmospheric pressure. Further, the presently designed system adjusts the vacuum level of thesuction terminal 101 of the ultrasonic hand piece 1 mainly by adjusting the vacuum level in thewaste receiving box 3. The pressure in thewaste receiving cassette 3 can be adjusted in advance when thepinch valve 14 brakes off the flow oftertiary line 403 to quickly reach the pressure required by the ultrasonic hand piece 1 when thepinch valve 14 is released. This results in a better performance of the operational response in synchronous mode. At the same time, there is better operability in coping with clogging.

As shown in fig. 2, the primary control valve 6 is disposed on afirst branch 405, and thefirst branch 405 communicates with theprimary pipeline 401 through a second joint 412. The primary control valve 6 and the vacuum pump 2 are connected in parallel with theprimary sensor 5, so that the influence of the primary control valve 6 on the flow state of theprimary sensor 5 for monitoring the vacuum pump 2 is reduced as much as possible, and the monitoring authenticity of theprimary sensor 5 is ensured.

The exhaust end 202 of the vacuum pump 2 is provided with a second reversing valve 10, the second reversing valve 10 having a switching function for selectively communicating the atmosphere through asecond branch 406 or thesecondary line 402 through a third branch 407. This is arranged such that the vacuum pump 2 can communicate with thesecondary line 402 via the third branch 407.

Further, theair inlet end 201 of the vacuum pump 2 is communicated with theprimary pipeline 401, theprimary pipeline 401 is provided with a first reversing valve 9, the first reversing valve 9 has a switching function and is used for selectively communicating theprimary pipeline 401 or selectively communicating the atmosphere through thefourth branch 408, and the first reversing valve 9 and the second reversing valve 10 jointly act to enable an air path blocking backwash air path to be formed among theprimary pipeline 401, thesecondary pipeline 402 and thetertiary pipeline 403. Since the secondary andtertiary lines 402 and 403 are connected to thefirst connector 411, surgical waste, which is mainly a mixture of mixed emulsions of resected tissue fragments, falls into thewaste receiving box 3 through thetertiary line 403, foam is generated when thewaste receiving box 3 is rapidly sucked into the waste receiving box, which easily causes thefirst connector 411 to be blocked. The air path blocking backwash air path may help unblock the blockage at thefirst connector 411.

In order to reduce the flow fluctuation caused by the vacuum pump 2 in theprimary pipeline 401, theprimary pipeline 401 is communicated with a gas storage tank 11, and is arranged between thegas inlet end 201 of the vacuum pump 2 and the first reversing valve 9.

In order to keep the primary andsecondary pipelines 401 and 402 clean, afirst filter 12 is disposed at the connection between theprimary pipeline 401 and thewaste receiving box 3, and a second filter 13 is disposed at the connection between thesecondary pipeline 402 and thewaste receiving box 3 to block surgical waste overflowing thewaste receiving box 3 and prevent blockage in the primary andsecondary pipelines 401 and 402.

The vacuum pump 2 can generate larger noise in the working process, thesecond branch 406 is communicated with the diffuser 17, and the diffuser 17 can eliminate the noise of the vacuum pump 2 and reduce noise pollution.

As shown in fig. 1 and 2, the ultrasonic hand piece 1 is connected to aflushing source 19 through aflushing line 409 for communicating liquid, which is known in the art and will not be described here.

As shown in fig. 2, the control system further comprises a host computer 16 and a fluid box 15, wherein the control system is built in the host computer 16, the fluid box 15 is connected to the host computer 16 in a pluggable manner, and at least part of thetertiary line 403 and theflushing line 409 are built in the fluid box 15. Specifically, the host computer 16 is provided with a screen 20 for displaying the control system data, and the size of the screen 20 is adapted to the size of the host computer 16. The fluid box 15 is provided with a release button 95, and when the release button 95 is pressed, a release signal is generated, so that the fluid box 15 can be pulled out.

The invention also discloses a suction pressure regulating method by using the vacuum pipeline system, which comprises the following steps,

s1, driving a vacuum pump 2 to generate vacuum pressure in a vacuum pipeline and the ultrasonic handheld piece 1, so that thesuction terminal 101 sucks surgical wastes, and the surgical wastes are deposited into thewaste receiving box 3 through a three-stage pipeline 403;

s2, controlling aprimary sensor 5 to monitor the flow of the vacuum pump 2, and generating a primary pipeline pressure value in real time; controlling the secondary sensor 7 to monitor the flow magnitude at thefirst junction 411 within thewaste receiving cassette 3 during pumping, generating a secondary line pressure value in real time;

s3, the control system receives the primary pipeline pressure value and the secondary pipeline pressure value, and the control system calculates the regulating pressure value of the vacuum pipeline by combining the target pressure value of the ultrasonic hand piece 1 pre-stored in the control system;

s4, the control system controls the ventilation flow of the primary control valve 6 and thesecondary control valve 8 according to the regulation pressure value, and adjusts the vacuum pressure in the vacuum pipeline, so that the ultrasonic hand piece 1 reaches the target pressure value.

Further, in the step S4, when the regulated pressure value is positive, it indicates that the vacuum pressure in the vacuum pipeline is too high at this time, and decompression is required, and the control system controls thesecondary control valve 8 to communicate with the atmosphere to regulate the vacuum pressure in thesecondary pipeline 402; when the regulating pressure value is negative, it indicates that the vacuum pressure in the vacuum pipeline is too small at this time, and pressurization is needed, and the control system controls the primary control valve 6 to be communicated with the atmosphere so as to regulate the vacuum pressure in theprimary pipeline 401. The regulated pressure value in the preferred embodiment is the difference between the primary line pressure value, the secondary line pressure value, and the target pressure value, although in other possible embodiments the regulated pressure value may be calculated in other ways.

In step S4, the air flow fluctuation generated when the ventilation flow rate in theprimary pipe 401 is adjusted is balanced by theair tank 12.

The invention also discloses a blockage judging method by using the vacuum pipeline system, which comprises the following steps of

S1, driving a vacuum pump 2 to generate vacuum pressure in a vacuum pipeline and the ultrasonic handheld piece 1, so that thesuction terminal 101 sucks surgical wastes, and the surgical wastes are deposited into thewaste receiving box 3 through a three-stage pipeline 403;

s2, controlling aprimary sensor 5 to monitor the flow of the vacuum pump 2, and generating a primary pipeline pressure value in real time; controlling the secondary sensor 7 to monitor the flow magnitude at thefirst junction 411 within thewaste receiving cassette 3 during pumping, generating a secondary line pressure value in real time;

s3, calculating the change rates of the pressure signals in theprimary pipeline 401 and thesecondary pipeline 402 in real time;

s4, setting a pressure signal change rate threshold range;

s5, when the pressure signal change rate falls within a set threshold range within a preset time period, judging that the vacuum pipeline system is in a normal suction state; and when the pressure signal change rate does not fall into the set threshold value range within the preset time period, judging that the vacuum pipeline is in a blocking state, and sending a blocking signal by the control system.

Furthermore, the invention also discloses a blockage regulating method utilizing the vacuum pipeline system, which comprises the following steps,

s1, driving a vacuum pump 2 to generate vacuum pressure in a vacuum pipeline and the ultrasonic handheld piece 1, so that thesuction terminal 101 sucks surgical wastes, and the surgical wastes are deposited into thewaste receiving box 3 through a three-stage pipeline 403;

s2, controlling aprimary sensor 5 to monitor the flow of the vacuum pump 2, and generating a primary pipeline pressure value in real time; monitoring the flow magnitude at afirst junction 411 within thewaste receiving cassette 3 during pumping using a secondary sensor 7, generating a secondary line pressure value in real time;

s3, performing blockage judgment, and when the vacuum pipeline is judged to be in a blockage state, sending a blockage signal by the control system;

s4, the control system closes the primary control valve 6 and thesecondary control valve 8, controls the first reversing valve 9 to selectively communicate the vacuum pump 2 with the atmosphere through thefourth branch 408, and simultaneously controls the second reversing valve 10 to selectively communicate thesecondary pipeline 402 through the third branch 407, so as to further convey gas into thewaste receiving box 3, and form a gas path blocking backwash gas path.

The air path blocking back flushing air path in the step S4 may be an air path generated by constant power, or may be an air path generated by changing the power frequency in the vacuum pump 2 to provide an oscillating gas, so that the blocking object is broken rapidly.

Specifically, the step S4 further includes

S41, instantly lifting the suction pressure of the vacuum pump 2 to the maximum suction pressure, and increasing the vacuum pressure in theprimary pipeline 401;

s42, performing blockage judgment, and when the vacuum pipeline is still in a blockage state, opening thepinch valve 14 to be communicated with thetertiary pipeline 403, and entering a step S4 to form the air channel blockage backwash air channel.

In this embodiment, the first joint 411 is easily blocked, and the steps S40, S41, S42 are set so that theprimary pipeline 401 is first unblocked by increasing the pressure before the step S4, and when the blocking determination in the step S42 no longer sends a blocking signal, that is, the surface blocking is cleared; when the blockage in the step S42 determines that the vacuum line is still in a blocked state, i.e. the process proceeds to the step S4, theprimary pipeline 401 and thesecondary pipeline 402 form a suction-suction air pressure backwash, and the blockage at the first joint 411 is effectively removed due to the larger impact pressure.

It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the skilled artisan should recognize that the embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.

Claims (9)

1. The vacuum pipeline system is used for monitoring/adjusting the vacuum pressure of the ultrasonic suction terminal provided in the ultrasonic suction operation, and is characterized in that: comprising the steps of (a) a step of,

an ultrasonic handpiece (1) having an aspiration terminal (101);

a vacuum pump (2) for providing vacuum pressure;

a waste receiving box (3);

a vacuum line comprising at least a primary line (401), a secondary line (402) and a tertiary line (403), the waste receiving cassette (3) being in communication with the vacuum pump (2) through the primary line (401), the waste receiving cassette (3) being in communication with the atmosphere through the secondary line (402), the waste receiving cassette (3) being in communication with the ultrasonic handpiece (1) through the tertiary line (403); the three-stage pipeline (403) is communicated with a pinch valve (14), and the pinch valve (14) is a non-pneumatic valve;

a primary sensor (5) which is communicated with the primary pipeline (401) and is used for monitoring the vacuum pressure value of the vacuum pump (2);

a primary control valve (6) communicated with the primary pipeline (401) and used for communicating with the atmosphere so as to regulate the vacuum pressure in the primary pipeline (401);

a secondary sensor (7) in communication with the secondary line (402) for monitoring the vacuum pressure value of the waste receiving cassette (3);

a secondary control valve (8) communicated with the secondary pipeline (402) and used for communicating with the atmosphere so as to regulate the vacuum pressure in the secondary pipeline (402);

the control system is used for receiving the vacuum pressure values monitored by the primary sensor (5) and the secondary sensor (7) and controlling the ventilation flow of the primary control valve (6) and the secondary control valve (8);

the exhaust end (202) of the vacuum pump (2) is provided with a second reversing valve (10), and the second reversing valve (10) has a switching function and is used for selectively communicating with the atmosphere through a second branch (406) or communicating with the diode line (402) through a third branch (407);

the utility model discloses a vacuum pump, including vacuum pump (2), vacuum pump (2) are provided with first switching-over valve (9) on one-level pipeline (401), first switching-over valve (9) have switching-over function for select intercommunication one-level pipeline (401) or select through fourth branch road (408) intercommunication atmosphere, first switching-over valve (9) and second switching-over valve (10) combined action make form gas circuit blocking backwash gas circuit between one-level pipeline (401), diode (402) and tertiary pipeline (403).

2. The vacuum line system according to claim 1, wherein: the secondary pipeline (402) and the tertiary pipeline (403) are connected to a first connector (411), and the first connector (411) is internally arranged in the waste receiving box (3).

3. The vacuum line system according to claim 2, wherein: the first joint (411) has a radially enlarged diameter at its outlet and the outlet is adjacent to a side wall of the waste receiving cassette (3) which is inclined inwardly.

4. A vacuum line system according to claim 3, characterized in that: the primary control valve (6) is arranged on the first branch (405), and the first branch (405) is communicated with the primary pipeline (401) through the second joint (412).

5. The vacuum line system of claim 4, wherein: the primary pipeline (401) is communicated with a gas storage tank (11) and is arranged between the gas inlet end (201) of the vacuum pump (2) and the first reversing valve (9).

6. The vacuum line system of claim 5, wherein: the junction of primary pipeline (401) with waste receiving box (3) is provided with first filter (12), the junction of diode pipeline (402) with waste receiving box (3) is provided with second filter (13).

7. The vacuum line system of claim 6, wherein: the second branch (406) is communicated with a diffuser (17).

8. The vacuum line system according to claim 1, wherein: the ultrasonic handpiece (1) is in communication with a flushing source (19) through a flushing line (409).

9. The vacuum line system of claim 8, wherein: the control system comprises a host (16) and a fluid box (15), wherein the control system is internally arranged in the host (16), the fluid box (15) is connected to the host (16) in a pluggable mode, and at least part of the tertiary pipeline (403) and the flushing pipeline (409) are internally arranged in the fluid box (15).

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