CN114939196A - Circuit system and method of portable negative pressure therapeutic instrument - Google Patents
Circuit system and method of portable negative pressure therapeutic instrument Download PDFInfo
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- CN114939196A CN114939196A CN202210523362.3A CN202210523362A CN114939196A CN 114939196 A CN114939196 A CN 114939196A CN 202210523362 A CN202210523362 A CN 202210523362A CN 114939196 A CN114939196 A CN 114939196A
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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
- A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
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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
- A61M1/88—Draining devices having means for processing the drained fluid, e.g. an absorber
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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
- A61M1/90—Negative pressure wound therapy devices, i.e. devices for applying suction to a wound to promote healing, e.g. including a vacuum dressing
- A61M1/96—Suction control thereof
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Abstract
The invention provides a circuit system and a method of a portable negative pressure therapeutic apparatus, which are characterized by comprising a generator lower cover, a generator upper cover, a vacuum pump, a control module, a power supply, an indicator light and a switch, wherein the vacuum pump in the negative pressure generator generates negative pressure and can be used for generating the negative pressure, the generation of the negative pressure and the pressure can be regulated and controlled by the control module, the negative pressure generated by the vacuum pump is transmitted into an externally-connected waste liquid collecting box, one side in the waste liquid collecting box can be connected with a suction tube, and the suction tube is connected with a suction disc, so that the negative pressure can be generated on a wound surface, and a treatment and repair effect is achieved; the invention has small size, light weight and convenient carrying and use, reduces the requirements on the working environment, and enables patients to still carry out negative pressure treatment in the accidental environment of hospitals.
Description
Technical Field
The invention relates to the field of wound auxiliary treatment, in particular to a circuit system and a method of a portable negative pressure therapeutic apparatus.
Background
Negative pressure wound treatment is a common clinical wound treatment mode. The treatment scheme firstly needs to fill a sponge foam dressing on the wound and then seal the wound; negative pressure is then applied to the sponge-like foam dressing by an external device, so that the wound bed is under negative pressure. Through negative pressure wound treatment, a wound bed generates a series of physical and chemical factors, wound surface edema is eliminated through negative pressure drainage, the blood flow condition of the wound surface is changed, and finally granulation of the wound surface is enabled to grow rapidly, and healing of the wound surface is promoted.
At present, the negative pressure wound therapy can be widely applied to a plurality of acute and chronic wounds of clinical treatment, but the negative pressure therapeutic apparatus required by the therapy mode is generally expensive in manufacturing cost, and even though some negative pressure therapeutic apparatuses are invented in China, the problems of large size, heavy body, inconvenience in carrying and the like still commonly exist, and the therapy mode is not popularized enough because a patient is not convenient to use under the condition outside a hospital.
Disclosure of Invention
The present invention is directed to a circuit system and a method for a portable negative pressure therapeutic apparatus, which are used to solve the above problems.
In order to realize the purpose, the invention provides the following technical scheme:
a portable negative pressure therapeutic instrument circuit system is characterized by comprising a negative pressure generator 1, a waste liquid collecting box 2, a suction tube 3 and a negative pressure sucker 4; including vacuum pump 5, control module 6, power 7, pilot lamp 8 and switch 9 in negative pressure generator 1, negative pressure generator 1 produces the negative pressure air supply, process the box 2 back rethread is collected to the waste liquid attract pipe 3 with negative sucker 4 carries out negative pressure treatment to the wound surface of a wound, wherein negative pressure generator 1 with box 2 is collected to the waste liquid all for the less box-like of size, conveniently carries and removes, and can supply power through power 7 from the area.
The negative pressure generator 1 is box-shaped and is divided into an upper part and a lower part which are respectively a generator upper cover 11 and a generator lower cover 12, the generator upper cover 11 is provided with three indicator lamp holes 111 and a switch control hole 112, the three indicator lamp holes 111 respectively indicate electric quantity, whether to be charged and whether to work, a light guide post 1111 is further arranged in the corresponding position of the indicator lamp hole 111, the light guide post 1111 is as long as the light guide post can not be in contact with the control module 6 in the interior, and the switch control hole 112 can control the control module 6 in the negative pressure generator 1 to be switched on and off; a charging hole 113 is further formed in the center of the bottom of the generator upper cover 11, two upper cover supporting columns 114 are further arranged inside the generator upper cover 11, and the upper cover supporting columns 114 can just abut against the control module 6 placed inside the negative pressure generator 1; the center of the top of the generator upper cover 11 is further provided with a three-way joint upper fixing groove 115.
A three-way joint lower fixing groove 121 is formed in the center of the top of the generator lower cover 12, a battery supporting seat 122, a vacuum pump supporting seat 123 and two lower cover supporting columns 124 are arranged in the generator lower cover 12, a circle of bulge 125 is arranged on an inner ring of the edge of the generator lower cover 12, the bulge 125 can be just matched with the inner ring of the edge of the generator upper cover 11, the generator upper cover 11 can be matched and connected with the generator lower cover 12, a three-way joint 13 is further arranged in the negative pressure generator 1, and the three-way joint 13 can be fixed in the center of the top of the negative pressure generator 1 under the matching of the three-way joint upper fixing groove 115 and the three-way joint lower fixing groove 121; the end of the three-way joint 13, which is exposed outside the negative pressure generator 1, is provided with a film, only negative pressure gas can pass through the film, but blood can not pass through the film, and the film can be a PTFE film.
The USB interface 61 is arranged right at the charging hole 113, the USB interface 61 can charge equipment, the pressure sensor 64 can measure the negative pressure output by the vacuum pump 5 and then transmit pressure data to the single chip microcomputer 62, the single chip microcomputer 62 controls the vacuum pump 5 to regulate the output negative pressure, and the single chip microcomputer 62 needs to be provided with a pressure control program to regulate and control the negative pressure so as to prevent the pressure from being too large or too small; the indicator lamps 8 are also connected with and controlled by the singlechip 62, and the three indicator lamps 8 respectively indicate electric quantity, whether to charge and whether to work; the switch 9 can control whether the control module 6 is operated.
The box 2 is collected to the waste liquid with one side that negative pressure generator 1 contacted is equipped with collects lid 21, collect and seted up on the lid 21 one can with three way connection 13 closely cooperates round hole 211, it is close to collect lid 21 the one end left and right sides of negative pressure generator 1 is equipped with circular-arc protruding 212, simultaneously the top both sides of negative pressure generator 1 also are equipped with certain arch, and seted up can with circular-arc protruding 212 complex circular-arc draw-in groove 14.
A semicircular groove is formed in one side face of the waste liquid collecting box 2, a suction tube connecting hole 22 is formed in the bottom of the groove, the suction tube connecting hole 22 can be connected with the suction tube 3, the suction tube 3 is connected with the negative pressure sucker 4 again, negative pressure is transmitted to the negative pressure sucker 4, and negative pressure treatment is conducted on a wound.
A method for using a circuit system of a portable negative pressure therapeutic apparatus is characterized by comprising the following specific steps:
s1, after the control module 6 starts to work through the switch 8, the power supply 7 supplies power to all parts;
s2, the vacuum pump 5 starts to work to generate negative pressure, the vacuum pump 5 is connected with one end, close to the vacuum pump 5, of a tee joint communicated with the waste liquid collecting box 2, the other end of the tee joint is connected with the pressure sensor 64 on the control module 6 to monitor the negative pressure generated by the vacuum pump 5, the pressure sensor 64 transmits the negative pressure to the single chip microcomputer 62,
s3, when the vacuum pump 5 works, when the negative pressure is too high, the single chip microcomputer 62 receives the pressure signal transmitted by the pressure sensor 64 and controls the vacuum pump 5 to increase power and generate negative pressure with larger pressure, and when the negative pressure is too low, the single chip microcomputer 62 receives the pressure signal transmitted by the pressure sensor 64 and controls the vacuum pump 5 to decrease power and decrease the pressure generating the negative pressure.
Compared with the prior art, the invention has the following beneficial effects:
the circuit system of the invention has small size, light weight and convenient carrying and use, reduces the requirements on the working environment, and enables patients to still carry out negative pressure treatment in the accidental environment of hospitals; the power can be supplied by a battery, and the power supply can be used without being connected with a power supply.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the negative pressure generator of the present invention;
FIG. 3 is a schematic diagram of the structure of the upper cover of the generator of the present invention;
FIG. 4 is a schematic view of the structure of the lower cover of the generator of the present invention;
FIG. 5 is a schematic diagram of a control module according to the present invention;
FIG. 6 is a second schematic diagram of a control module according to the present invention;
FIG. 7 is an exploded view of the overall structure of the present invention;
FIG. 8 is a schematic view of the negative pressure generator of the present invention;
FIG. 9 is a schematic view of the structure of the waste liquid collecting box of the present invention;
FIG. 10 is a circuit diagram of the USB interface connection circuit of the present invention;
FIG. 11 is a wiring circuit diagram of the single chip microcomputer of the present invention;
FIG. 12 is a diagram of a battery management integrated circuit according to the present invention;
FIG. 13 is a circuit diagram of the switch of the present invention;
FIG. 14 is a circuit diagram of a pressure sensor of the present invention;
FIG. 15 is a circuit diagram of an indicator light of the present invention;
in the figure: 1-a negative pressure generator; 11-generator upper cover; 111-indicator light hole; 1111-light guide post; 112-switch control aperture; 113-a charging hole; 114-upper cover support posts; 115-three-way joint upper fixed groove; 12-generator lower cover; 121-a lower fixing groove of a three-way joint; 122-a battery support seat; 123-vacuum pump supporting seat; 124-lower cover support column; 125-projection; 13-a three-way connection; 14-arc-shaped clamping grooves; 2-a waste liquid collection box; 21-collecting box cover; 211-circular holes; 212-arc shaped protrusions; 22-suction tube connection hole; 3-a suction tube; 4-negative pressure suction cup; 5-a vacuum pump; 6-a control module; 61-USB interface; 62-single chip microcomputer; 64-a pressure sensor; 7-a power supply; 8-an indicator light; 9-switch.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to clarify technical problems, technical solutions, implementation processes and performance displays. It should be understood that the specific embodiments described herein are for illustrative purposes only. The present invention is not limited to the above embodiments. Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.
Example 1
As shown in fig. 1-6, a circuit system and method for a portable negative pressure therapeutic apparatus is characterized in that the circuit system comprises a negative pressure generator 1, a waste liquid collecting box 2, a suction tube 3 and a negative pressure suction cup 4; including vacuum pump 5, control module 6, power 7, pilot lamp 8 and switch 9 in negative pressure generator 1, negative pressure generator 1 produces the negative pressure air supply, process the box 2 back rethread is collected to the waste liquid attract pipe 3 with negative sucker 4 carries out negative pressure treatment to the wound surface of a wound, wherein negative pressure generator 1 with box 2 is collected to the waste liquid all for the less box-like of size, conveniently carries and removes, and can supply power through power 7 from the area.
As shown in fig. 2-4, as a possible embodiment, the negative pressure generator 1 is box-shaped and divided into an upper part and a lower part, which are a generator upper cover 11 and a generator lower cover 12, respectively, so as to facilitate the detachment of the negative pressure generator 1 and the installation and debugging of the internal components, the generator upper cover 11 is provided with three indicator lamp holes 111 and a switch control hole 112, the three indicator lamp holes 111 are respectively corresponding to the three indicator lamps 8 on the internal control module 6, the three indicator lamp holes 111 respectively indicate the electric quantity, whether to charge and whether to operate, the corresponding positions of the indicator lamp holes 111 are further provided with a light guide pillar 1111 therein, the light guide pillar 1111 has a length such that the light can not contact the internal control module 6 to make the light emitted from the indicator lamp holes 111 obvious, and the indicator lamps 8 indicating the electric quantity can be connected to the single chip microcomputer 62 and controlled thereby, the single chip microcomputer 62 adjusts the brightness of the indicator light 8 according to the electric quantity of the power supply 7, and the higher the electric quantity is, the brighter the brightness is, so that a user can conveniently know the electric quantity condition of equipment; the indicator light 8 for indicating whether charging is carried out is turned on when the power supply is switched on for charging, and is turned off when the power supply is not charged, so that a user can know whether charging is successfully connected or not; the indicator light 8 for indicating whether the vacuum pump 5 works is turned on when the vacuum pump 8 works, and the indicator light 8 is turned off when the vacuum pump does not work, so that a user can know whether the equipment is in a working state conveniently; the switch control hole 112 corresponds to the position of the switch 9 inside, and the switch control hole 112 can control the switch of the control module 6 in the negative pressure generator 1; a charging hole 113 is further formed in the center of the bottom of the generator upper cover 11, two upper cover supporting columns 114 are further arranged inside the generator upper cover 11, and the upper cover supporting columns 114 can just abut against the control module 6 placed inside the negative pressure generator 1; the center of the top of the generator upper cover 11 is further provided with a three-way joint upper fixing groove 115.
As a possible implementation manner, a three-way joint lower fixing groove 121 is formed in the center of the top of the generator lower cover 12, a battery supporting seat 122, a vacuum pump supporting seat 123 and two lower cover supporting pillars 124 are arranged in the generator lower cover 12, a circle of protrusion 125 is arranged on an inner ring of the edge of the generator lower cover 12, the protrusion 125 can be just matched with the inner ring of the edge of the generator upper cover 11, so that the generator upper cover 11 can be matched and connected with the generator lower cover 12, a three-way joint 13 is further arranged in the negative pressure generator 1, and the three-way joint 13 can be fixed in the center of the top of the negative pressure generator 1 under the matching of the three-way joint upper fixing groove 115 and the three-way joint lower fixing groove 121; the head of one end of the three-way joint 13, which is exposed out of the negative pressure generator 1, is provided with a film, only negative pressure gas can pass through the film, blood can not pass through the film, the blood can be prevented from flowing back into the vacuum pump, the safety of equipment is ensured, and the film can be a PTFE film.
As shown in fig. 5 and 6, as a possible implementation manner, the control module 6 is installed in the negative pressure generator 1 and supported by the upper cover supporting column 114 and the lower cover supporting column 124, the power supply 7 and the vacuum pump 5 are arranged below the control module 6, the power supply 7 is a lithium battery, and can supply power to various components inside the negative pressure generator 1 and supply power to the control module 6 and the vacuum pump 5, the control module 6 includes a USB interface 61, a single chip 62 and a pressure sensor 64, and the indicator light 8 and the switch 9 are also arranged on the control module 6.
As a possible embodiment, the USB interface 61 is disposed right at the charging hole 113, the USB interface 61 can charge a device, the pressure sensor 64 can measure the negative pressure output from the vacuum pump 5 and transmit the pressure data to the single chip microcomputer 62, the single chip microcomputer 62 controls the vacuum pump 5 to adjust the output negative pressure, and the single chip microcomputer 62 needs to be provided with a pressure control program to adjust and control the negative pressure so as to prevent the pressure from being too large or too small; the indicator lamps 8 are also connected with and controlled by the singlechip 62, and the three indicator lamps 8 respectively indicate electric quantity, whether to charge and whether to work; the switch 9 can control whether the control module 6 is operated.
As shown in fig. 7-9, as a possible embodiment, a collecting box cover 21 is disposed on a side where the waste liquid collecting box 2 contacts the negative pressure generator 1, a circular hole 211 capable of being tightly fitted with the three-way joint 13 is disposed on the collecting box cover 21 to ensure sealing performance without loss of the negative pressure transmitted from the negative pressure generator 1, circular arc protrusions 212 are disposed on left and right sides of an end of the collecting box cover 21 close to the negative pressure generator 1, a certain protrusion is disposed on both sides of a top end of the negative pressure generator 1, and a circular arc locking groove 14 capable of being fitted with the circular arc protrusions 212 is disposed, the waste liquid collecting box 2 rotates on the negative pressure generator 1 with the three-way joint 13 as an axis, when the protrusion 212 and the locking groove 14 are just overlapped, the relative position between the waste liquid collecting box 2 and the negative pressure generator 1 can be locked and fixed, prevent in the working process that both separation accidents from appearing, need will box 2 is collected to the waste liquid with during the separation of negative pressure generator 1, it is rotatory box 2 is collected to the waste liquid protruding 212 follow deviate from in the draw-in groove 14, can with box 2 is collected to the waste liquid is followed three way connection 13 is pulled out, can with box 2 is collected to the waste liquid with negative pressure generator 1 separation.
As a possible implementation manner, a semicircular groove is formed on one side surface of the waste liquid collecting box 2, a suction tube connecting hole 22 is formed at the bottom of the groove, the suction tube connecting hole 22 can be connected with the suction tube 3, the groove can save the space occupied by the suction tube 3 after the connection, and the suction tube 3 is connected with the vacuum chuck 4 to transmit the negative pressure to the vacuum chuck 4 for performing the negative pressure treatment on the wound.
A method for using a circuit system of a portable negative pressure therapeutic apparatus is characterized by comprising the following specific steps:
s1, after the control module 6 starts to work through the switch 8, the power supply 7 supplies power to each component;
s2, the vacuum pump 5 starts to work to generate negative pressure, the vacuum pump 5 is connected with one end, close to the vacuum pump 5, of a tee joint communicated with the waste liquid collecting box 2, the other end of the tee joint is connected with the pressure sensor 64 on the control module 6 to monitor the negative pressure generated by the vacuum pump 5, the pressure sensor 64 transmits the negative pressure to the single chip microcomputer 62,
s3, when the vacuum pump 5 works, when the negative pressure is too high, the single chip microcomputer 62 receives the pressure signal transmitted by the pressure sensor 64 and controls the vacuum pump 5 to increase power and generate negative pressure with larger pressure, and when the negative pressure is too low, the single chip microcomputer 62 receives the pressure signal transmitted by the pressure sensor 64 and controls the vacuum pump 5 to decrease power and decrease the pressure generating the negative pressure.
When the vacuum pump works, equipment is opened through the switch control hole 112, the control module 6 starts to work, after the power supply 7 supplies power to all parts, the vacuum pump 5 starts to work to generate negative pressure, the vacuum pump 5 and the three-way joint 13 are placed in the negative pressure generator 1 and are connected with one end close to the vacuum pump 5, the other end of the vacuum pump is connected with the pressure sensor 64 on the control module 6, the negative pressure generated by the vacuum pump 5 is monitored, the pressure sensor 64 transmits the negative pressure to the singlechip 62, the singlechip 62 controls the vacuum pump 5 to increase power when the negative pressure is too high to generate negative pressure with higher pressure, and the singlechip 62 controls the vacuum pump 5 to reduce power and reduce the pressure for generating negative pressure when the negative pressure is too low; one end of the negative pressure generated by the vacuum pump 5 leaking outside the negative pressure generator 1 is conveyed into the waste liquid collecting box 2 through the three-way joint 13, the sealing performance is ensured because the circular hole 211 of the three-way joint 13 is tightly matched and connected, and meanwhile, the negative pressure is transmitted into the suction tube 3 through the suction tube connecting hole 22 on the side surface of the waste liquid collecting box 2, so that the negative pressure can be generated at the negative pressure sucking disc 4, and the negative pressure is applied to the wound filled with the spongy foam dressing in advance through the negative pressure sucking disc 4, so that the wound can be subjected to negative pressure treatment when the wound is in a negative pressure state; waste liquid such as certain blood and the like possibly generated by negative pressure can enter the waste liquid collecting box 2 through the negative pressure sucking disc 4, the suction tube 3 and the suction tube connecting hole 22 in sequence, the waste liquid is collected in the waste liquid collecting box 2, the waste liquid collecting box 2 can be rotated and then pulled out and taken down after being used every time, the collecting box cover 21 is opened to pour the waste liquid to a designated position, and the waste liquid collecting box 2 and the three-way joint 13 are connected in a matching manner and are convenient to separate; when not in use, the device can be turned off at the switch control hole 112.
The device has small size, light weight and convenient carrying and use, reduces the requirements on the working environment, and enables patients to still perform negative pressure treatment in the accidental environment of hospitals; and the power can be supplied by a battery, so that the power supply can be used without being connected.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A portable negative pressure therapeutic instrument circuit system is characterized by comprising a negative pressure generator (1), a waste liquid collecting box (2), a suction tube (3) and a negative pressure sucker (4); including vacuum pump (5), control module (6), power (7), pilot lamp (8) and switch (9) in negative pressure generator (1), negative pressure air source is produced in negative pressure generator (1), process the rethread behind waste liquid collection box (2) attract pipe (3) with negative pressure sucking disc (4) carry out negative pressure treatment to the wound surface of a wound, wherein negative pressure generator (1) with waste liquid collection box (2) all are the less box-like of size, conveniently carry and remove, and can supply power through power (7) from the area.
2. The circuit system of claim 1, wherein the control module (6) is installed in the negative pressure generator (1), the power supply (7) and the vacuum pump (5) are arranged below the control module (6), the power supply (7) is a lithium battery and supplies power to the control module (6) and the vacuum pump (5), the control module (6) comprises a USB interface (61), a single chip microcomputer (62) and a pressure sensor (64), and the indicator light (8) and the switch (9) are also arranged on the control module (6).
3. The circuit system of a portable negative pressure therapeutic apparatus according to claim 2, wherein the USB interface (61) is capable of charging a device, the pressure sensor (64) is capable of measuring the negative pressure output from the vacuum pump (5) and transmitting pressure data to the single chip microcomputer (62), the single chip microcomputer (62) controls the vacuum pump (5) to adjust the output negative pressure, and the single chip microcomputer (62) is required to be provided with a pressure control program to adjust and control the negative pressure to prevent the pressure from being too large or too small; the indicator lamps (8) are also connected with and controlled by the single chip microcomputer (62), and the three indicator lamps (8) respectively indicate electric quantity, whether to charge or not and whether to work or not; the switch (9) can control whether the control module (6) works or not.
4. The circuit system of claim 1, wherein the USB interface (61) of the control module (6) can be a USB connector of 105017-0001, the single chip microcomputer (62) can be a microcontroller of PIC16LF1455, the pressure sensor (64) can be a pressure sensor of MP3V5050GP, the vacuum PUMP (5) can be a micro air PUMP of M20PUMP, and the switch (9) can be a load switch of TPS 917 2278.
5. The portable negative pressure therapeutic apparatus circuit system according to claim 4, wherein the first pin of the USB interface (61) is connected with U5V, the second pin is connected with USBDM, and the USBLC6-2SC6 is connected with the first pin and the sixth pin in parallel; the pin III is connected with the USBDP and is required to be connected with the USBLC6-2SC6 in parallel with the pin III and the pin IV; the fourth pin is grounded after passing through the resistor, and the fifth pin to the eleventh pin are grounded.
6. The portable negative pressure therapeutic apparatus circuit system of claim 4, wherein the single chip microcomputer (62) is connected with a first pin USB RENUNN, a second pin STATUS, a third pin MCLR, a fourth pin KEY, a sixth pin ON, a seventh pin VOUT, an eighth pin PGC, a ninth pin PGD, a tenth pin VDD33, an eleventh pin USBDM, a twelfth pin USBDM, a thirteenth pin GND, a sixteenth pin VDD33 and a 100nF capacitor.
7. The portable negative pressure therapy apparatus circuit system according to claim 4, wherein the pressure sensor (64) has pin two connected to VDD33, pin three connected to GND, pin four connected to VOUT, pin two and pin three connected by a 100nF capacitor, and pin three and pin four connected by a 470pF capacitor.
8. The portable negative pressure therapeutic apparatus circuit system according to claim 4, wherein the first pin and the fourth pin of the switch (9) are connected with a 470pF capacitor and then connected with VDD33, the third pin is connected with ON, the fifth pin and the sixth pin are connected with a 1500 Ω resistor and then connected with the first pin of the vacuum pump (5), and the second pin of the switch (9) and the second pin of the vacuum pump (5) are connected and grounded.
9. A method for using a circuit system of a portable negative pressure therapeutic apparatus is characterized by comprising the following specific steps:
s1, after the control module (6) starts to work through the switch (8), the power supply (7) supplies power to all parts;
s2, the vacuum pump (5) starts to work to generate negative pressure, the vacuum pump (5) is connected with one end, close to the vacuum pump (5), of a three-way joint communicated with the waste liquid collecting box (2), the other end of the three-way joint is connected with the pressure sensor (64) on the control module (6), the negative pressure generated by the vacuum pump (5) is monitored, the pressure sensor (64) transmits the negative pressure to the single chip microcomputer (62),
s3, when the vacuum pump (5) works, when the negative pressure is too high, the single chip microcomputer (62) receives the pressure signal transmitted by the pressure sensor (64), the vacuum pump (5) can be controlled to increase power, and the negative pressure with larger pressure is generated, when the negative pressure is too low, the single chip microcomputer (62) receives the pressure signal transmitted by the pressure sensor (64), and the vacuum pump (5) can be controlled to reduce power and the pressure for generating the negative pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210523362.3A CN114939196A (en) | 2022-05-13 | 2022-05-13 | Circuit system and method of portable negative pressure therapeutic instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210523362.3A CN114939196A (en) | 2022-05-13 | 2022-05-13 | Circuit system and method of portable negative pressure therapeutic instrument |
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| CN114939196A true CN114939196A (en) | 2022-08-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114931671A (en) * | 2022-05-11 | 2022-08-23 | 常州漫舒医疗科技有限公司 | Portable negative pressure therapeutic instrument system |
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- 2022-05-13 CN CN202210523362.3A patent/CN114939196A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114931671A (en) * | 2022-05-11 | 2022-08-23 | 常州漫舒医疗科技有限公司 | Portable negative pressure therapeutic instrument system |
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