CN216985846U - Dormancy mode starting circuit of negative pressure wound therapy apparatus - Google Patents
Dormancy mode starting circuit of negative pressure wound therapy apparatus Download PDFInfo
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- CN216985846U CN216985846U CN202122232097.7U CN202122232097U CN216985846U CN 216985846 U CN216985846 U CN 216985846U CN 202122232097 U CN202122232097 U CN 202122232097U CN 216985846 U CN216985846 U CN 216985846U
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Abstract
A sleep mode starting circuit of a negative pressure wound therapy machine comprises a pump, a control unit and a pressure sensor. The pressure sensor is provided with a control unit, the control unit receives input information of the pressure sensor, when a system of the control unit detects that air leakage is lower than a pressure value of pressure compensation, the control unit starts the pump to perform pressure compensation, calculates a starting time threshold value of the pump and starting pressure compensation times, and enters a normal negative pressure wound treatment course working mode after the control unit confirms that the starting time threshold value reaches (is larger than or equal to) a preset time threshold value and the starting pressure compensation times reach (is larger than or equal to) the preset pressure compensation times.
Description
Technical Field
The utility model relates to a sleep mode starting circuit of a negative pressure wound therapy machine, in particular to a control unit which calculates a starting time threshold value and starting pressure supplementing times of a pump and enters a normal negative pressure wound treatment course working mode after the control unit confirms that the preset time threshold value and the preset pressure supplementing times are reached.
Background
Negative Pressure Wound Therapy (NPWT) is widely used for chronic and acute wounds, and with the progress of the technology, miniaturized and portable equipment is continuously updated, foam dressing or gauze is mainly used as a filling material, a sucking disc and a drainage tube are connected with a negative pressure source (negative pressure instrument) to form a complete negative pressure therapy system, the system continuously drains liquid of a wound bed to a liquid storage tank (Canister), and the miniature portable instrument can be applied to the treatment of surgical incisions.
Therefore, it is critical that the circuit of the negative pressure source (negative pressure instrument) control how to effectively apply the negative pressure source to the wound site, like the nerve center of the negative pressure wound therapy system, and a general circuit control method and apparatus include: a negative pressure source, a processing element, and a memory, the memory including instructions configured to, when executed on the processor, cause the apparatus to perform the following steps via the negative pressure source: attempting to generate the desired negative pressure at the wound site, if the desired negative pressure has not been generated after the first predetermined period of time, deactivating the negative pressure source for a second predetermined period of time, and then attempting to generate the desired negative pressure at the wound site.
The other is a sleep mode, which is mainly applied to a High leakage (High leakage) mode, in which after pressurization for a certain period of time, if pressure cannot be reached, the system is stopped for a certain period of time, and then pressure compensation is attempted. The sleep mode is used for calculating the change rate of pressure, when the change rate of the pressure is too large, the pump can be automatically stopped, and the sleep mode is mainly applied to a protection mechanism for preventing the pressure of the pump from rushing away, so that the danger of a user is avoided.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sleep mode starting circuit of a negative pressure wound therapy machine, which calculates a time threshold value and the starting pressure supplementing times of a pump through a control unit, and enters a normal negative pressure wound treatment course working mode system after the control unit is confirmed to reach the time threshold value and the pressure supplementing times are more than or equal to the set times.
The utility model relates to a dormancy mode starting circuit of a negative pressure wound therapy machine, which comprises: a pump that provides a negative pressure supplement pressure of the negative pressure wound therapy machine; the pressure sensor is used for detecting the air leakage pressure of the negative pressure wound therapy machine; and the control unit is used for receiving the negative pressure supplementing pressure and the air leakage pressure information, starting the pump by the control unit to supplement the pressure by the negative pressure when the air leakage pressure is lower than the negative pressure supplementing pressure, calculating a starting time threshold and starting pressure supplementing times of the pump by the control unit, and entering a normal negative pressure wound treatment course working mode after the starting time threshold reaches a preset time value and the starting pressure supplementing times are not less than (greater than or equal to) the set times.
Preferably, the controller further executes a pressure relief detection mechanism, which includes the following three processes: starting pressure relief detection, and judging whether the dressing end of the negative pressure wound therapy machine leaks air or not; internal detection, namely confirming whether the air leakage detection of the dressing end is normal or not again; and confirming the air leakage rate, and entering the normal negative pressure wound treatment course working mode after the air leakage of the dressing end is normal.
Preferably, the step of initiating the pressure relief detection includes: starting up to detect the air leakage rate; the pump provides continuous negative pressure for pressure compensation; judging whether the air leakage rate is normal or not for the first time; then the pump is stopped after pressurizing to-125 millimeters of mercury (mmHg), and the system waits for two minutes; judging whether the air leakage rate is normal for the second time; and after confirming that the air leakage rate is normal twice, entering the working mode of the normal negative pressure wound treatment course.
Preferably, the air leakage rate is determined by a formula "air leakage rate is air leakage amount/time (S-S)", and when the air leakage rate is normal under a preset condition, the air leakage rate is abnormal above the preset condition.
Preferably, the sleep mode is set to achieve an ideal pressure value preset by the system after negative pressure compensation is performed once.
Preferably, the start-up circuit is primarily for normal leakage (normal leakage) mode use.
Based on the above, the pressure sensor of the present invention sets the function through the control unit, sets the pressure compensation mechanism to reach the ideal pressure value at one time, and calculates the pressure compensation times, so as to provide convenience for the user in the normal mode. And the pressure change rate is applied to the pressure supplementing function, so that the pump is started immediately, and the air tightness of the host is ensured. In addition, the sleep mode starting circuit of the negative pressure wound therapy machine is set to be further controlled in an advanced mode, the preset pressure value is reached once when the pressure is supplemented, the time threshold value and the ideal pressure supplementing frequency are synchronously matched, and the machine is stopped when the pressure supplementing frequency is determined to be excessive.
In order to make the aforementioned and other features and advantages of the utility model more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a diagram of an embodiment of a sleep mode starting circuit of a negative pressure wound therapy machine of the present invention.
Fig. 2 is a flowchart of an embodiment of a sleep mode starting circuit of the negative pressure wound therapy apparatus according to the present invention.
Fig. 3 is a schematic flow chart of pressure relief detection according to an embodiment of the utility model.
Fig. 4 is a graph illustrating the detection of pressure relief of fig. 2.
[ description of main element symbols ]
100: dormancy mode starting circuit of negative pressure wound therapy apparatus
101: negative pressure wound therapeutic machine
110: pump and method of operating the same
120: pressure sensor
130: control unit
S110: receiving input information of the pressure sensor
S120: starting the pump to supplement pressure
S130: determining the state of the actuation time
S131: step of timing again
S140: determining the starting and actuating state
S150: enter a treatment course working mode
S201: starting up and pressure compensation
S202: judging the first air leakage rate
S203: pressurizing and standing
S204: judging the second air leakage rate
S301: enter into the first dormancy state
S302: make up pressure
S303: enter a second sleep state
S304: starting course of treatment
T1: threshold value of starting time
T2: preset time threshold value
R1: number of times of pressure compensation during starting
R2: presetting the number of pressure compensation
Detailed Description
As shown in fig. 1, a circuit 100 for activating a sleep mode of a negative pressure wound therapy apparatus according to an embodiment of the present invention includes: a pump 110; a pressure sensor 120; and a control unit 130.
The pump 110 provides the negative pressure compensation pressure of the negative pressure wound therapy apparatus 101, so that the wound dressing end of the negative pressure wound therapy apparatus 101 can maintain a certain negative pressure value, and the main machine of the negative pressure wound therapy apparatus 101 is ensured to generate good air tightness for the wound dressing end.
The pressure sensor 120 detects the air leakage pressure of the negative pressure wound therapy apparatus 101, and since the air leakage condition of the wound dressing end may occur under various conditions, such as the patient moving …, the air leakage pressure of the negative pressure wound therapy apparatus 101 can be detected by the pressure sensor 120 to grasp the air leakage condition of the wound dressing end.
As shown in fig. 2, the control unit 130 is configured to perform the following steps: receiving pressure sensor input information S110; starting a pump to supplement pressure S120; determining the actuation time state S130; determining a start operation state S140; and enter a session operating mode S150.
Receiving the pressure sensor input information S110, the pressure sensor 120 detects the air leakage pressure of the negative wound therapy apparatus 101.
The pump is started to supplement the pressure S120, and if the control unit 130 determines that the air leakage detected by the pressure sensor 120 is lower than the preset normal pressure, the control unit 130 starts the pump 110 to supplement the pressure at the negative pressure, so that the wound dressing end can obtain a stable negative pressure value.
In the actuating time state S130, the control unit 130 calculates the start time threshold T1 of the pump 110, that is, the time used for the pump 110 to start and stop, whether the start time threshold T1 reaches the preset time threshold T2(T1 ≧ T2) is true, and the preset time threshold T2 is, for example, 3 minutes.
If the response of the operating time state S130 is determined to be no, that is, the control unit 130 determines that the preset time threshold T2 is not reached, the step S131 of timing again is executed, which is the number of times of clearing the pressure compensation count by the control unit 130, performing pressure compensation by restarting the pump 110, and repeating the step of determining the operating time state S130.
When the activation state S140 is determined, the control unit 130 calculates the number of pressure compensation times R1 for activation of the pump 110, that is, the number of times the pump 110 is activated for pressure compensation, and whether the number of pressure compensation times R1 is greater than or equal to the preset number of pressure compensation times R2(R1 ≧ R2) is true.
Similarly, if it is determined whether the response of the start operation state S140 is negative, that is, the control unit 130 determines that the start pressure compensation number R1 is less than the preset pressure capturing number, the re-counting step S141 is executed, in which the control unit 130 clears the pressure compensation count number, restarts the pump 110 to perform pressure compensation, and repeats the step of determining the start operation state S140.
Entering the course operating mode S150, after confirming that the activation time threshold T1 reaches the preset time threshold T2(T1 ≧ T2) and the number of times of activation pressure compensation R1 is greater than or equal to the preset number of times of pressure compensation R2(R1 ≧ R2), the control unit 130 enters the normal negative pressure wound course operating mode.
The above steps are mainly to set the pressure compensation mechanism to reach the ideal pressure value once through the control unit 130, and to calculate the pressure compensation times, so as to provide convenience for the user in the normal mode.
When entering the normal negative pressure wound treatment course working mode, the sleep mode starting circuit 100 executes the following steps: entering a first dormancy state S301, stopping the machine and waiting for half an hour; a voltage step S302 of performing voltage step 3 times by the sleep mode activation circuit 100; entering a second dormancy state S303, stopping the machine again and waiting for half an hour; the start-up procedure S304 is executed by the sleep mode start-up circuit 100, and the procedure is restarted again to the execution step of step S110.
As shown in fig. 3, before the normal negative pressure wound treatment mode, the controller further executes a pressure release detection mechanism, which includes the following steps: starting up and supplementing voltage S201; judging a first air leakage rate S202; pressurizing and standing S203; and judging a second air leakage rate S204.
Starting up and performing a first pressure compensation S201 to start up to detect the air leakage rate, and the pump 110 provides a first pressure compensation to pressurize to-125 mm Hg (mmHg) by the pump 110;
judging a first air leakage rate S202, wherein the first air leakage rate is judged to be true, the first air leakage rate is normal, and after the first pressure compensation, the system waits for two minutes and then finishes the judgment of the first air leakage rate; the operation is started, the first pressure supplementing S201 is carried out, the first air leakage rate is judged S202, and the medical staff is mainly provided for adjusting air leakage of the dressing.
Performing a second pressure supplement S203, which is pressurized again to-125 mmHg (mmHg) by the pump 110;
judging a second air leakage rate S204, after the same second pressure compensation, waiting for two minutes by the system, then finishing the judgment of the second air leakage rate, and when the second air leakage rate is judged to be true, indicating that the second air leakage rate is normal; the second pressure compensation S203 and the second air leakage rate determination S204 are performed to confirm whether the air leakage is normal again.
And performing a treatment course S205, and performing a normal negative pressure wound treatment course when the air release rates of the two times are confirmed to be normal.
As shown in fig. 4, the graph of fig. 4 shows that when the pump 110 provides continuous pressure compensation, the pump 110 is stopped after being pressurized to-125 mmHg (mmHg) as the ordinate, and then the curve starts to slowly drop downwards after waiting for two minutes as the abscissa shows, and the curve can be determined by the formula "bleeding rate ═ bleeding amount/time", for example, the curve is normal when the curve drops below 5 mmHg (mmHg) per minute, and is abnormal when the curve drops above 5 mmHg (mmHg).
In summary, the sleep mode activation circuit 100 of the negative pressure wound therapy apparatus of the present invention sets the function through the control unit 130 inside the pressure sensor 120, and sets the sleep mode to the pressure compensation one time to achieve the ideal pressure value preset by the system. And the starting circuit provides a mode that the user can more easily use the normal leakage mode by calculating the voltage supplementing times. And the pressure change rate is applied to the pressure compensation function, so that the pump 110 is started immediately, and the air tightness of the host is ensured. In addition, the sleep mode starting circuit 100 of the negative pressure wound therapy apparatus is set to further advanced control, and when the pressure is supplemented, the preset pressure value is reached once, and the time threshold value and the ideal pressure supplementing frequency are synchronously matched, and the machine is stopped when the pressure supplementing frequency is determined to be excessive.
Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.
Claims (3)
1. A sleep mode starting circuit of a negative pressure wound therapy machine is characterized by comprising:
a pump that provides a negative pressure supplement pressure of the negative pressure wound therapy machine;
the pressure sensor is used for detecting the air leakage pressure of the negative pressure wound therapy machine; and
the control unit receives the air leakage pressure information input by the pressure sensor, starts the pump to perform negative pressure compensation when the air leakage pressure is lower than the negative pressure compensation pressure, and judges the actuating time state, the control unit calculates the starting time threshold of the pump and judges the starting actuating state, the control unit judges the starting pressure compensation times of the pump, and the control unit enters a normal negative pressure wound treatment course working mode when the starting time threshold reaches the preset time threshold and the starting pressure compensation times are not less than the preset pressure compensation times.
2. The sleep-mode starting circuit according to claim 1, wherein the sleep-mode is set to achieve a desired pressure value preset by the system by one time of negative pressure compensation.
3. The sleep-mode startup circuit of claim 1, wherein the startup circuit is primarily for normal leakage mode use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122232097.7U CN216985846U (en) | 2021-09-15 | 2021-09-15 | Dormancy mode starting circuit of negative pressure wound therapy apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122232097.7U CN216985846U (en) | 2021-09-15 | 2021-09-15 | Dormancy mode starting circuit of negative pressure wound therapy apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216985846U true CN216985846U (en) | 2022-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122232097.7U Active CN216985846U (en) | 2021-09-15 | 2021-09-15 | Dormancy mode starting circuit of negative pressure wound therapy apparatus |
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| Country | Link |
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| CN (1) | CN216985846U (en) |
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2021
- 2021-09-15 CN CN202122232097.7U patent/CN216985846U/en active Active
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