CN114832169A - Vacuum pipeline system and using method thereof - Google Patents
Vacuum pipeline system and using method thereof Download PDFInfo
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- CN114832169A CN114832169A CN202210368851.6A CN202210368851A CN114832169A CN 114832169 A CN114832169 A CN 114832169A CN 202210368851 A CN202210368851 A CN 202210368851A CN 114832169 A CN114832169 A CN 114832169A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/73—Suction drainage systems comprising sensors or indicators for physical values
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/71—Suction drainage systems
- A61M1/74—Suction control
- A61M1/743—Suction control by changing the cross-section of the line, e.g. flow regulating valves
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/22—Valves or arrangement of valves
- A61M39/28—Clamping means for squeezing flexible tubes, e.g. roller clamps
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Abstract
The invention discloses a vacuum pipeline system and a using method thereof, comprising an ultrasonic hand piece; a vacuum pump; a waste receiving bin; 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 diode wire; the secondary control valve is communicated with the secondary pipeline and is 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 ultrasonic handheld device is provided with the primary pipeline and the secondary pipeline to accurately and efficiently monitor the vacuum pressure in the ultrasonic handheld device, adjust the vacuum pressure in real time, and simultaneously perform blockage monitoring and blockage adjustment.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a vacuum pipeline system for ultrasonic suction and a using method thereof.
Background
The ultrasonic suction has the advantages of small injury, less surgical bleeding and clean surgical field. The probe of the ultrasonic aspirator has little influence on surrounding tissues and is obviously superior to instruments for removing tumors, such as a common aspirator or tumor-removing forceps and the like. As long as the operation is proper, the structure around the lesion is not damaged.
However, the general ultrasonic suction has the following disadvantages: first, the conventional ultrasonic suction system does not have a negative pressure regulation function, and can only perform an operation using constant negative pressure and power set immediately after leaving the surgical site, and cannot meet the requirements of different operations. Secondly, the negative pressure cannot be regulated and controlled, and the real working condition of the cutter head end cannot be monitored, so that 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 purpose of the invention is realized by the following technical scheme:
a vacuum line system for monitoring/adjusting the vacuum pressure at the ultrasound aspiration terminal provided in the ultrasound aspiration procedure, comprising,
an ultrasonic handpiece having a suction terminal;
a vacuum pump providing a vacuum pressure;
a waste receiving bin;
A vacuum line comprising at least a primary line through which the waste-receiving cassette communicates with the vacuum pump, a secondary line through which the waste-receiving cassette communicates with the atmosphere, and a tertiary line through which the waste-receiving cassette communicates with the ultrasonic handpiece;
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 adjust the vacuum pressure in the primary pipeline;
the secondary sensor is communicated with the diode and used for monitoring the vacuum pressure value of the waste receiving box;
the secondary control valve is communicated with the secondary pipeline and is 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 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.
Preferably, a pinch valve is communicated with the tertiary pipeline and is an electromagnetic brake valve.
Preferably, the secondary and tertiary lines are connected to a first junction, the first junction being built into the waste receiving box.
Preferably, the tube of the first connector is tapered towards its outlet and the outlet is adjacent a side wall of the waste receiving bin, the side wall being inclined inwardly.
Preferably, the primary control valve is arranged on a first branch, and the first branch is communicated with the primary pipeline through a second joint.
Preferably, 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 selectively communicating with the secondary pipeline through a third branch.
Preferably, the air inlet end of the vacuum pump is communicated with a primary pipeline, a first reversing valve is arranged on the primary pipeline, the first reversing valve 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 path blocking backwash air path to be formed among the primary pipeline, the secondary pipeline and the tertiary pipeline.
Preferably, the primary pipeline is communicated with an air storage tank which 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, a diffuser is communicated with the second branch.
Preferably, the ultrasonic handpiece is in communication with an irrigation source via an irrigation line.
Preferably, the control system comprises a host and a fluid box, the control system is 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 is arranged in the fluid box.
A suction pressure adjusting method using the vacuum line system as described above, comprising the steps of,
s1, driving a vacuum pump to enable vacuum pressure to be generated in a vacuum pipeline and the ultrasonic handheld piece, enabling the suction terminal to suck surgical waste, and depositing the surgical waste into a waste receiving box through a three-stage pipeline;
s2, controlling a primary sensor to monitor the flow of the vacuum pump and generating a primary pipeline pressure value in real time; controlling a secondary sensor to monitor the flow rate at a first joint in the waste receiving box during a pumping period, and generating a secondary pipeline pressure value in real time;
s3, the control system receives the primary pipeline pressure value and the secondary pipeline pressure value, and calculates and obtains the adjusting pressure value of the vacuum pipeline by combining with the target pressure value of the ultrasonic hand piece prestored in the control system;
S4, the control system controls the ventilation flow of the primary control valve and the secondary control valve according to the adjustment pressure value, adjusts the vacuum pressure in the vacuum pipeline, and further enables the ultrasonic handheld piece to reach the target pressure value.
Preferably, in step S4, when the regulated pressure value is a positive value and pressure reduction is required, the control system controls the secondary control valve to communicate with the atmosphere to regulate the vacuum pressure in the secondary pipeline; when the adjusting pressure value is a negative value and needs pressurization, the control system controls the primary control valve to be communicated with the atmosphere so as to adjust the vacuum pressure in the primary pipeline.
Preferably, in step S4, the air tank balances the airflow fluctuation generated when the ventilation flow rate in the primary pipeline is adjusted.
A method for determining clogging using a vacuum line system as described above, comprising the steps of:
s1, driving a vacuum pump to enable vacuum pressure to be generated in a vacuum pipeline and the ultrasonic handheld piece, enabling the suction terminal to suck surgical waste, and depositing the surgical waste into a waste receiving box through a three-stage pipeline;
s2, controlling a primary sensor to monitor the flow of the vacuum pump and generating a primary pipeline pressure value in real time; controlling a secondary sensor to monitor the flow rate at a first joint in the waste receiving box during a pumping period, and generating a secondary pipeline pressure value in real time;
S3, calculating the pressure signal change rate in the primary pipeline and the secondary pipeline in real time;
s4, setting a pressure signal change rate threshold range;
s5, when the pressure signal change rate falls into a set threshold value range in 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 range in the preset time period, judging that the vacuum pipeline is in a blocking state, and sending a blocking signal by the control system.
A method of occlusion adjustment using a vacuum line system as described above, comprising the steps of:
s1, driving a vacuum pump to enable vacuum pressure to be generated in a vacuum pipeline and the ultrasonic handheld piece, enabling the suction terminal to suck surgical waste, and depositing the surgical waste into a waste receiving box through a three-stage pipeline;
s2, controlling a primary sensor to monitor the flow of the vacuum pump and generating a primary pipeline pressure value in real time; monitoring the flow rate at the first junction in the waste receiving cassette during the pumping period using a secondary sensor to generate a secondary line pressure value in real time;
s3, judging blockage, and when the vacuum pipeline is judged to be in a blocked state, sending a blockage signal by the control system;
And S4, closing the primary control valve and the secondary control valve by the control system, controlling the first reversing valve to select to communicate the vacuum pump with the atmosphere through the fourth branch, controlling the second reversing valve to select to communicate the secondary pipeline through the third branch, and conveying gas into the waste receiving box to form a gas path blocking backwash gas path.
Preferably, step S4 is preceded by
S41, instantly raising the suction pressure of the vacuum pump to the maximum suction pressure, and increasing the vacuum pressure in the primary pipeline;
and S42, judging blockage, opening the pinch valve to communicate with the three-stage pipeline when the vacuum pipeline is judged to be still in the blocked state, and entering the step S to form the gas path blocking backwash gas path.
The invention has the following beneficial effects:
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, while the primary pipeline is not directly connected with the secondary pipeline, so that the secondary sensor is not influenced by the vacuum pump and can truly reflect the vacuum pressure of the ultrasonic hand piece, and the monitoring accuracy of the vacuum pressure of the ultrasonic hand piece is improved;
2. The primary pipeline and the secondary pipeline in the scheme are not directly connected with the ultrasonic handheld piece, so that the influence of the replacement of the ultrasonic handheld 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 using the pinch valve during the replacement of the ultrasonic handheld piece, the air pressure fluctuation in the vacuum pipeline is reduced, the efficiency of replacing the ultrasonic handheld piece is improved, and the operation is more flexible;
3. a primary control valve and a secondary control valve are arranged to coordinate to adjust the air pressure, so that the flexibility and the rapidness of air pressure adjustment are improved;
4. a first-stage reversing valve and a second-stage reversing valve are arranged to jointly act so that a gas path blocking backwash gas path is formed among the first-stage pipeline, the second-stage pipeline and the third-stage pipeline, and blocking can be removed after the blocking;
5. the electromagnetic braking pinch valve is arranged to control the opening and closing of the triode pipeline, so that the vacuum system can adopt different use modes, and compared with a pneumatic valve, the burden of the vacuum pump can be reduced, the fluctuation of air pressure in the vacuum pipeline is reduced, the accuracy and the efficiency of pressure regulation are improved, and the cost of the vacuum pump is also reduced.
Drawings
The technical scheme of the invention is further explained by combining the drawings as follows:
FIG. 1: a schematic diagram of an embodiment of the invention;
FIG. 2: a schematic diagram of an embodiment of the 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. These embodiments are not intended to limit the present invention, and structural, methodical, or functional changes that may be made by one of ordinary skill in the art in light of these embodiments are intended to be within the scope of the present invention.
In the description of the schemes, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not 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 embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.
As shown in fig. 1 to 2, the present invention discloses a vacuum piping system for monitoring/adjusting vacuum pressure of an ultrasonic suction terminal provided in an ultrasonic suction operation, comprising an ultrasonic handpiece 1 having a suction terminal 101; the vacuum pump 2 is used for forming the required vacuum pressure by controlling the flow rate; a waste receiving box 3; vacuum piping comprising at least a primary piping 401, a secondary piping 402, and a tertiary piping 403, the waste receiving cassette 3 communicating with the vacuum pump 2 through the primary piping 401, the waste receiving cassette 3 communicating with the atmosphere through the secondary piping 402, the waste receiving cassette 3 communicating with the ultrasonic handpiece 1 through the tertiary piping 403; a primary sensor 5, which is connected to the primary pipeline 401 and is used for monitoring the vacuum pressure value near the vacuum pump 2; the primary control valve 6 is communicated with the primary pipeline 401 and is used for communicating with the atmosphere so as to adjust the vacuum pressure in the primary pipeline 401; a secondary sensor 7, connected to the secondary line 402, for monitoring the vacuum pressure value of the waste receiving box 3; a secondary control valve 8 connected to the secondary line 402 for communicating with the atmosphere to adjust the vacuum pressure in the secondary line 402; and 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. According to the invention, the primary 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 the waste receiving box 3, so that the influence of the vacuum pump 2 on the secondary sensor 7 is avoided, the phenomenon that the whole vacuum pipeline is greatly fluctuated when the ultrasonic hand piece 1 is replaced is avoided, unnecessary adjusting time is increased, and the use efficiency and accuracy of the whole vacuum pipeline system are improved.
In this embodiment, in addition to the primary sensor 5 and the secondary sensor 7, one or more sensors may be disposed in parallel on the primary pipeline 401 and the secondary pipeline 402 for monitoring the states of the primary pipeline 401 and the secondary pipeline 402, such as a flow sensor and a humidity sensor, and in other embodiments, another pressure sensor may be disposed to cooperate with the primary sensor 5 or the secondary sensor 7 to monitor the pressure difference between the primary pipeline 401 and the secondary pipeline 402.
As shown in fig. 2 and 3, the secondary line 402 and the tertiary line 403 are connected to a first connector 411, and the first connector 411 is disposed in the waste receiving box 3. The first connector 411 is communicated with the inside of the waste receiving box 3, so that the secondary sensor 7 can monitor the flow inside the waste receiving box 3 in real time to obtain the vacuum pressure value, and since the first connector 411 is connected with the secondary pipeline 402 and the tertiary pipeline 403, the vacuum pressure value inside the waste receiving box 3 is equivalent to the vacuum pressure value inside the ultrasonic handpiece 1, that is, the secondary sensor 7 can quickly and accurately reflect the change of the internal vacuum pressure of the ultrasonic handpiece 1 in real time by monitoring the vacuum pressure value inside the waste receiving box 3. Further, the primary pipeline 401 and the secondary pipeline 402 are not directly connected, so that the secondary sensor 7 can not be affected by the vacuum pump 2, and the vacuum pressure of the ultrasonic handpiece 1 can be truly reflected, and the monitoring accuracy of the vacuum pressure of the ultrasonic handpiece 1 can be improved.
Specifically, the secondary line 402 and the tertiary line 403 are connected to a first connector 411, and the first connector 411 is built in the structure of the waste receiving box 3. When the ultrasonic hand piece 1 is disconnected, the vacuum pipeline system can effectively regulate and control the pressure in the vacuum pipeline without regulating and controlling the pressure after the ultrasonic hand piece 1 is communicated. By doing so, the response time of the pressure regulation of the system can be effectively reduced, and the operation waiting time can be reduced.
The vacuum line system according to the present embodiment mainly adjusts the vacuum degree of the suction terminal 101 by adjusting the operation flow rate of the vacuum pump 2. In addition, the magnitude of the vacuum in the waste receiving box 3 directly affects the magnitude of the attraction force of the attraction terminal 101 directly connected thereto. That is, controlling the degree of vacuum within the waste receiving box 3 can achieve the effect of controlling the degree of vacuum of the attraction terminal 101. Based on this, in the present embodiment, when the pinch valve 14 blocks the circulation of the tertiary line 403 by braking, the magnitude of the vacuum degree in the waste receiving box 3 can be adjusted in advance to quickly reach the pressure required to suck the terminal 101 in the ultrasonic handpiece 1 when the pinch valve 14 releases the tertiary line 403. By doing so, not only is there a better operational response performance, but also there is better operability in dealing with a blockage, facilitating the disassembly and maintenance of the ultrasound handpiece 1, etc.
In this embodiment, the secondary line 402 and the tertiary line 403 are connected to a first connector 411, and the first connector 411 is built in the waste receiving box 3. As shown in fig. 3, if the emulsion formed by mixing the rinsing liquid sucked out by the suction terminal 101 of the ultrasonic handpiece 1 during the operation with the operation waste is directly sucked into the waste receiving box 3, the emulsion is likely to generate more foam due to rapid suction, which causes the volume of the emulsion to increase rapidly, and thus the first connector 411 is likely to generate backward suction, thereby causing the first connector 411 to be blocked. In order to reduce the blockage at the first joint 411, the first joint 411 is obliquely arranged, and the pipe of the first joint 411 is gradually enlarged towards the outlet thereof, so as to reduce the flow rate of the surgical wastes and facilitate the outflow of the surgical wastes. The outlet is close to the side wall of the waste receiving box 3, and the side wall is inclined inwards, so that the operation waste can be deposited into the waste receiving box 3 along the side wall of the waste receiving box 3, the generation of foam is reduced as much as possible, and the first connector 411 is prevented from being blocked by the back suction of the operation waste.
In other possible embodiments, in order to prevent the mixed emulsion of the irrigation fluid and the excised tissue debris sucked out by the ultrasonic suction terminal 101 from foaming in the suction bottle, the volume increases rapidly and tends to cause overfilling of the waste receiving cassette 3. A waste box can be connected in series between the tertiary pipeline 403 and the waste receiving box 3 to play a role of buffering, the tops of the two waste boxes are connected through a pipeline, only gas is allowed to circulate, waste liquid and foam are blocked, and the effect of reducing the blockage of the first joint 411 is achieved.
Further, a pinch valve 14 is connected to the third stage pipeline 403, and the pinch valve 14 is a non-pneumatic valve, such as a motor-actuated valve, a solenoid valve, or the like. In the preferred embodiment, the pinch valve 14 is preferably an electromagnetic brake valve, and compared with a pneumatic valve used in an existing vacuum system, the pinch valve 14 in the present scheme does not need to be driven by the vacuum pump 2, and the primary pipeline 401 does not need to always maintain high pressure to drive the brake of the pinch valve 14, so that the burden of the vacuum pump 2 is reduced, the cost is reduced, large air pressure fluctuation caused by the pinch valve 14 in a vacuum pipeline is avoided, and the accuracy and efficiency of vacuum pressure regulation of the vacuum pipeline are improved.
Furthermore, compared with a traditional pneumatic valve, the non-pneumatic valve is adopted as the pinch valve 14 in the embodiment, so that the vacuum pump 2 does not need to simultaneously meet the dual requirements of pneumatic control of the pinch valve 14 and air pressure regulation and control in a vacuum pipeline in the type selection process, the pressure in the vacuum pump 2 and the waste receiving box 3 does not need to always keep higher vacuum degree to brake the pinch valve 14, the service lives of the vacuum pump 2 and the pinch valve 14 are prolonged, meanwhile, the flexibility of pressure control of the vacuum pump 2 is effectively improved, and the regulation performance of the air pressure is obviously improved in a system working mode. Due to the above-mentioned differences in the air pressure adjustment methods, the suction pressure adjustment method performed by the vacuum line system is also substantially innovative, as 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, and the pinch valve 14 in the preferred embodiment is controlled by a foot pedal 18 to switch between different modes of operation. Of course, in other possible embodiments, the pinch valve 14 may be connected to other possible control ends for performing opening and closing control.
Specifically, the vacuum piping system has at least a standard mode and a synchronous mode. In the normal mode, the pinch valve 14 is not controlled by the foot pedal 18 and remains open to allow the tertiary line 403 to flow, and the suction terminal 101 communicates with the waste receiving box 3 and the vacuum pump 2. In the synchronous mode, the foot pedal 18 controls the opening and closing of the pinch valve 14, when the foot pedal 18 is not depressed, the pinch valve 14 is in a closed state to cut off the tertiary line 403, so that the suction terminal 101 is not communicated with the waste receiving box 3; when the foot pedal 18 is depressed, the pinch valve 14 is opened, so that the tertiary line 403 is kept in flow communication, and the suction terminal 101 is communicated with the waste receiving box 3 and the vacuum pump 2. Different operation modes are used for meeting different operation requirements, and the practicability and the use flexibility of the vacuum pipeline system are improved.
In the system, the amount of vacuum in the waste receiving cassette 3 affects the amount of suction of the suction terminal 101 of the ultrasonic handpiece 1 to which it is directly connected. The maximum vacuum degree that the whole vacuum pipeline system can reach is equivalent to the exhaust efficiency that the vacuum source 2 can provide. In the synchronous mode, since the suction force is not allowed to reach the ultrasonic handpiece 1 when the foot pedal 18 is not depressed, the connection between the suction terminal 101 and the vacuum source 2 is cut off. At this time, the degree of vacuum in the waste receiving box 3 is previously adjusted to the set target parameter through the primary control valve 6 and the secondary control valve 8. Once the foot pedal 18 is depressed, the pinch valve 14 is released. Through tertiary pipeline 403, the vacuum degree that sets up in advance in the waste receiving box 3 is transmitted to attracting terminal 101 fast at once, reaches the required suction of operation, improves wholly the operating efficiency of vacuum pipe-line system improves the convenience of use, promotes the regulation performance to atmospheric pressure. Further, the system currently designed primarily adjusts the vacuum level of the aspiration terminal 101 of the ultrasonic handpiece 1 by adjusting the vacuum level within the waste receiving cassette 3. The pressure in the waste receiving cassette 3 can be adjusted in advance when the pinch valve 14 is actuated to break flow through the tertiary line 403 to quickly achieve the required pressure of the ultrasonic handpiece 1 when the pinch valve 14 is released. This results in better performance of operational response during the synchronous mode. Meanwhile, the method has better operability when dealing with blockage.
As shown in fig. 2, the primary control valve 6 is disposed on a first branch 405, and the first branch 405 communicates with the primary line 401 through a second joint 412. The primary control valve 6, the vacuum pump 2 and the primary sensor 5 are arranged in parallel, so that the influence of the primary control valve 6 on the flow state of the vacuum pump 2 monitored by the primary sensor 5 is reduced as much as possible, and the monitoring authenticity of the primary sensor 5 is ensured.
The exhaust end 202 of the vacuum pump 2 is provided with a second direction valve 10, and the second direction valve 10 has a switching function for selectively communicating the atmosphere through a second branch 406 or selectively communicating the secondary line 402 through a third branch 407. The arrangement is such that the vacuum pump 2 can communicate with the secondary line 402 via the third branch 407.
Further, the air inlet end 201 of the vacuum pump 2 is communicated with a primary pipeline 401, a first reversing valve 9 is arranged on the primary pipeline 401, the first reversing valve 9 has a switching function and is used for selectively communicating the primary pipeline 401 or selectively communicating the atmosphere through a fourth 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 the primary pipeline 401, the secondary pipeline 402 and the tertiary pipeline 403. Since the secondary line 402 and the tertiary line 403 are connected to the first connector 411, surgical waste, which is mainly a mixture of excised tissue debris mixed emulsion, falls into the waste receiving cassette 3 through the tertiary line 403, and foams are generated when rapidly sucked into the waste receiving cassette 3, easily causing the first connector 411 to be clogged. The air passage blocking backwash air passage may help to unblock the blockage at the first joint 411.
In order to reduce the flow fluctuation caused by the vacuum pump 2 in the primary pipeline 401, an air storage tank 11 is communicated with the primary pipeline 401 and is arranged between the air inlet end 201 of the vacuum pump 2 and the first reversing valve 9.
In order to keep the primary and secondary lines 401 and 402 clean, a first filter 12 is provided at the junction of the primary line 401 and the waste receiving box 3, and a second filter 13 is provided at the junction of the secondary line 402 and the waste receiving box 3, so as to block the surgical waste overflowing from the waste receiving box 3 and prevent blockage in the primary and secondary lines 401 and 402.
The vacuum pump 2 can generate loud noise in the working process, the second branch 406 is communicated with a 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 fig. 2, the ultrasound handpiece 1 is connected to the flushing source 19 through the flushing line 409 to communicate with the liquid, which is the prior art and will not be described herein.
As shown in fig. 2, the apparatus further includes a host 16 and a fluid cartridge 15, the control system is disposed in the host 16, the fluid cartridge 15 is removably coupled to the host 16, and at least a portion of the tertiary line 403 and the flushing line 409 are disposed in the fluid cartridge 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 cartridge 15 has a release button 95 thereon, and when the release button 95 is pressed, a release signal is generated, so that the fluid cartridge 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 the vacuum pump 2 to generate vacuum pressure in the vacuum pipeline and the ultrasonic handpiece 1, so that the suction terminal 101 sucks the surgical waste, and the surgical waste is deposited into the waste receiving box 3 through the tertiary pipeline 403;
s2, controlling the primary sensor 5 to monitor the flow rate of the vacuum pump 2 and generating a primary pipeline pressure value in real time; controlling the secondary sensor 7 to monitor the amount of flow at the first junction 411 within the waste receiving cassette 3 during the suction period, 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 calculates and obtains the adjusting pressure value of the vacuum pipeline by combining with the target pressure value of the ultrasonic handheld piece 1 prestored in the control system;
and S4, controlling the ventilation flow of the primary control valve 6 and the secondary control valve 8 by the control system according to the adjusted pressure value, and adjusting the vacuum pressure in the vacuum pipeline so as to enable the ultrasonic handpiece 1 to reach a target pressure value.
Further, in step S4, when the adjustment pressure value is a positive value, which indicates that the vacuum pressure in the vacuum pipeline is too large at this time, and decompression is required, the control system controls the secondary control valve 8 to communicate with the atmosphere to adjust the vacuum pressure in the secondary pipeline 402; when the adjusting pressure value is a negative value, it indicates that the vacuum pressure in the vacuum pipeline is too small at this time and needs to be increased, and the control system controls the primary control valve 6 to be communicated with the atmosphere to adjust the vacuum pressure in the primary pipeline 401. The regulation pressure value in the preferred embodiment is a difference value between the primary pipeline pressure value, the secondary pipeline pressure value and the target pressure value, and of course, in other possible embodiments, the regulation pressure value may be calculated in other manners.
In step S4, the air tank 12 balances the airflow fluctuation generated when the ventilation flow rate in the primary pipe 401 is adjusted.
The invention also discloses a blockage judging method by utilizing the vacuum pipeline system, which comprises the following steps
S1, driving the vacuum pump 2 to generate vacuum pressure in the vacuum pipeline and the ultrasonic handpiece 1, so that the suction terminal 101 sucks the surgical waste, and the surgical waste is deposited into the waste receiving box 3 through the tertiary pipeline 403;
s2, controlling the primary sensor 5 to monitor the flow rate of the vacuum pump 2 and generating a primary pipeline pressure value in real time; controlling the secondary sensor 7 to monitor the amount of flow at the first junction 411 within the waste receiving cassette 3 during the suction period, generating a secondary line pressure value in real time;
s3, calculating the pressure signal change rate in the primary pipeline 401 and the secondary pipeline 402 in real time;
s4, setting a pressure signal change rate threshold range;
s5, when the pressure signal change rate falls into a set threshold value range in 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 range in 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 by using the vacuum pipeline system, which comprises the following steps,
s1, driving the vacuum pump 2 to generate vacuum pressure in the vacuum pipeline and the ultrasonic handpiece 1, so that the suction terminal 101 sucks the surgical waste, and the surgical waste is deposited into the waste receiving box 3 through the tertiary pipeline 403;
s2, controlling the primary sensor 5 to monitor the flow of the vacuum pump 2 and generating a primary pipeline pressure value in real time; monitoring the amount of flow at the first connection 411 within the waste receiving cassette 3 during the suction period using a secondary sensor 7, generating a secondary line pressure value in real time;
s3, judging blockage, and when the vacuum pipeline is judged to be in a blocked state, sending a blockage signal by the control system;
and S4, the control system closes the primary control valve 6 and the secondary control valve 8, controls the first reversing valve 9 to selectively communicate the vacuum pump 2 with the atmosphere through the fourth branch 408, controls the second reversing valve 10 to selectively communicate the secondary pipeline 402 through the third branch 407, and further conveys gas into the waste receiving box 3 to form a gas path blocking backwash gas path.
The gas path blocking and back flushing gas path in step S4 may be a gas path generated by constant power, or may be configured to provide oscillating gas by changing the power frequency in the vacuum pump 2, so that the blocking object is rapidly broken.
Specifically, step S4 is preceded by
S41, instantly raising the suction pressure of the vacuum pump 2 to its maximum suction pressure, increasing the vacuum pressure in the primary pipeline 401;
and S42, judging whether the vacuum pipeline is still in the blocking state, opening the pinch valve 14 to communicate with the three-stage pipeline 403 when the vacuum pipeline is judged to be in the blocking state, and entering the step S4 to form the gas path blocking backwash gas path.
In the present embodiment, the first joint 411 is easily blocked, the steps S40, S41, and S42 are arranged such that the primary pipeline 401 is first subjected to pressure increase to unblock the first joint 411 before step S4, and when the blockage determination of step S42 no longer sends out a blockage signal, the surface blockage is cleared; when the blockage in step S42 determines that the vacuum line is still blocked, i.e. the process proceeds to step S4, the primary pipeline 401 and the secondary pipeline 402 form a sucking pneumatic back flush, which has a larger impact pressure on the blockage at the first joint 411, so as to effectively remove the blockage.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments that can be understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (18)
1. Vacuum pipe-line system for monitoring/adjust the ultrasonic suction operation in provide the vacuum pressure at ultrasonic suction terminal, its characterized in that: comprises the steps of (a) preparing a substrate,
an ultrasonic handpiece (1) having a suction terminal (101);
a vacuum pump (2) providing a 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 primary sensor (5) is communicated with the primary pipeline (401) and is used for monitoring the vacuum pressure value of the vacuum pump (2);
The primary control valve (6) is communicated with the primary pipeline (401) and is used for communicating with the atmosphere so as to adjust 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) in communication with the secondary line (402) for communicating with the atmosphere to regulate the vacuum pressure within the secondary line (402);
and 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).
2. The vacuum line system of claim 1, wherein: the three-stage pipeline (403) is communicated with a pinch valve (14), and the pinch valve (14) is a non-pneumatic valve.
3. The vacuum line system of claim 2, wherein: the secondary line (402) and tertiary line (403) are connected to a first connector (411), the first connector (411) being built into the waste receiving box (3).
4. The vacuum line system of claim 3, wherein: the pipe of the first joint (411) is gradually enlarged towards its outlet, and the outlet is close to the side wall of the waste receiving box (3), which is arranged inclined inwards.
5. The vacuum line system of claim 4, wherein: the primary control valve (6) is arranged on a first branch (405), and the first branch (405) is communicated with the primary pipeline (401) through a second joint (412).
6. The vacuum line system of claim 5, wherein: 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 the atmosphere through a second branch (406) or selectively communicating the secondary pipeline (402) through a third branch (407).
7. The vacuum line system of claim 6, wherein: the air inlet end (201) of vacuum pump (2) communicates with one-level pipeline (401), be provided with first switching-over valve (9) on one-level pipeline (401), first switching-over valve (9) have switching function for select to communicate one-level pipeline (401) or select to communicate the atmosphere through fourth branch road (408), first switching-over valve (9) and second switching-over valve (10) combined action make form the gas circuit and block the recoil gas circuit between one-level pipeline (401), second grade pipeline (402) and tertiary pipeline (403).
8. The vacuum line system of claim 7, wherein: the primary pipeline (401) is communicated with a gas storage tank (11) and arranged between the gas inlet end (201) of the vacuum pump (2) and the first reversing valve (9).
9. The vacuum line system of claim 8, wherein: a first filter (12) is arranged at the joint of the primary pipeline (401) and the waste receiving box (3), and a second filter (13) is arranged at the joint of the secondary pipeline (402) and the waste receiving box (3).
10. The vacuum line system of claim 9, wherein: the second branch (406) is communicated with a diffuser (17).
11. The vacuum line system of claim 1, wherein: the ultrasonic hand piece (1) is communicated with an irrigation source (19) through an irrigation pipeline (409).
12. The vacuum line system of claim 11, wherein: comprises a host (16) and a fluid box (15), the control system is arranged in the host (16), the fluid box (15) is connected to the host (16) in a pluggable way, and at least parts of the tertiary pipeline (403) and the flushing pipeline (409) are arranged in the fluid box (15).
13. A suction pressure adjusting method using the vacuum line system according to any one of claims 1 to 12, characterized in that: the method comprises the following steps:
s1, driving a vacuum pump (2) to generate vacuum pressure in a vacuum pipeline and the ultrasonic hand piece (1), and enabling the suction terminal (101) to suck surgical wastes which are deposited into a waste receiving box (3) through a tertiary pipeline (403);
s2, controlling a primary sensor (5) to monitor the flow of the vacuum pump (2) and generating a primary pipeline pressure value in real time; controlling a secondary sensor (7) to monitor the flow rate in the waste receiving box (3) during the suction period, and generating a secondary pipeline pressure value in real time;
s3, the control system receives the primary pipeline pressure value and the secondary pipeline pressure value, and calculates and obtains the adjusting pressure value of the vacuum pipeline by combining a target pressure value of the ultrasonic hand piece (1) prestored in the control system;
s4, controlling the ventilation flow of the primary control valve (6) and the secondary control valve (8) by the control system according to the adjusted pressure value, and adjusting the vacuum pressure in the vacuum pipeline, so that the ultrasonic hand-held piece (1) reaches the target pressure value.
14. The suction pressure adjusting method of a vacuum pipe system according to claim 13, wherein: in the step S4, when the regulated pressure value is a positive value and pressure reduction is required, the control system controls the secondary control valve (8) to communicate with the atmosphere to regulate the vacuum pressure in the secondary pipeline (402); when the adjusting pressure value is a negative value and needs pressurization, the control system controls the primary control valve (6) to be communicated with the atmosphere so as to adjust the vacuum pressure in the primary pipeline (401).
15. The suction pressure adjusting method of a vacuum pipe system according to claim 13, wherein: in the step S4, the air tank (11) balances the air flow fluctuation generated when the ventilation flow rate in the primary pipe (401) is adjusted.
16. A blockage determination method using a vacuum line system according to any one of claims 1 to 12, characterized in that: the method comprises the following steps:
s1, driving a vacuum pump (2) to generate vacuum pressure in a vacuum pipeline and the ultrasonic hand piece (1), and enabling the suction terminal (101) to suck surgical wastes which are deposited into a waste receiving box (3) through a tertiary pipeline (403);
S2, controlling a primary sensor (5) to monitor the flow of the vacuum pump (2) and generating a primary pipeline pressure value in real time; controlling a secondary sensor (7) to monitor the flow rate at a first junction (411) within the waste receiving cassette (3) during the suction period, generating a secondary line pressure value in real time;
s3, calculating the pressure signal change rate in the primary pipeline (401) and the secondary pipeline (402) in real time;
s4, setting a pressure signal change rate threshold range;
s5, when the pressure signal change rate falls into a set threshold value range in 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 range in the preset time period, judging that the vacuum pipeline is in a blocking state, and sending a blocking signal by the control system.
17. A method of occlusion adjustment using a vacuum line system according to any of claims 1-12, characterized by: the method comprises the following steps:
s1, driving a vacuum pump (2) to generate vacuum pressure in a vacuum pipeline and the ultrasonic hand piece (1), and enabling the suction terminal (101) to suck surgical wastes which are deposited into a waste receiving box (3) through a tertiary pipeline (403);
S2, controlling a primary sensor (5) to monitor the flow rate of the vacuum pump (2) and generating a primary pipeline pressure value in real time; monitoring the magnitude of the flow at a first junction (411) within the waste receiving cassette (3) during aspiration using a secondary sensor (7) to generate a secondary line pressure value in real time;
s3, judging blockage, and when the vacuum pipeline is judged to be in a blocked state, sending a blockage signal by the control system;
s4, the control system closes the primary control valve (6) and the secondary control valve (8), controls the first reversing valve (9) to select to communicate the vacuum pump (2) with the atmosphere through the fourth branch (408), controls the second reversing valve (10) to select to communicate the secondary pipeline (402) through the third branch (407), and further conveys gas into the waste receiving box (3) to form a gas path blocking backwash gas path.
18. The method of regulating occlusion of a vacuum line system of claim 17, wherein: the step S4 is preceded by
S41, instantly raising the suction pressure of the vacuum pump (2) to the maximum suction pressure thereof, and increasing the vacuum pressure in the primary pipeline (401);
And S42, judging blockage, opening the pinch valve (14) to communicate with the three-stage pipeline (403) when the vacuum pipeline is judged to be still in the blocked state, and entering the step S4 to form the gas path blocking backwash gas path.
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Cited By (1)
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| CN115815246A (en) * | 2022-12-05 | 2023-03-21 | 核工业理化工程研究院 | Reverse purging method and device for blocking of negative pressure vacuum pipeline |
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| GB2267828A (en) * | 1992-06-18 | 1993-12-22 | Spembly Medical Ltd | Ultrasonic surgical aspirator with vacuum control |
| US7837673B2 (en) * | 2005-08-08 | 2010-11-23 | Innovative Therapies, Inc. | Wound irrigation device |
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| CN107496033A (en) * | 2012-10-24 | 2017-12-22 | 史赛克公司 | Method for collecting surgical waste with a mobile cart selectively connected to a mobile frame comprising a vacuum pump |
| CN105007974A (en) * | 2013-04-26 | 2015-10-28 | 诺华股份有限公司 | Partial venting system for occlusion surge mitigation |
| CN112996549A (en) * | 2018-09-24 | 2021-06-18 | 史赛克公司 | System and method for improving control responsiveness during aspiration |
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