CN111870746A - Controllable-pressure continuous negative-pressure drainage device for orthopedic nursing - Google Patents

Controllable-pressure continuous negative-pressure drainage device for orthopedic nursing Download PDF

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Publication number
CN111870746A
CN111870746A CN202010708318.0A CN202010708318A CN111870746A CN 111870746 A CN111870746 A CN 111870746A CN 202010708318 A CN202010708318 A CN 202010708318A CN 111870746 A CN111870746 A CN 111870746A
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pressure
air
negative pressure
groove
drainage device
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崔冉
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    • A61M1/0023
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/69Drainage containers not being adapted for subjection to vacuum, e.g. bags
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/71Suction drainage systems
    • A61M1/74Suction control

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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)

Abstract

The invention discloses a pressure-controllable continuous negative pressure drainage device for orthopedic nursing, which belongs to the technical field of negative pressure drainage devices and comprises an air compressor and a storage box, wherein the bottom of the air compressor is connected with one side of the top of an air storage chamber, the middle part of the air storage chamber is provided with an electromagnetic release valve, the top of the air storage chamber is provided with an air pressure monitoring interface and is connected with a pressure sensor through the air pressure monitoring interface, the negative pressure drainage device has smaller volume, is convenient to carry and replace a liquid storage device, a hand-held sucking disc can be used by pulling the suction disc to a wound when in use, the position does not need to be adjusted left and right, the negative pressure drainage device is very convenient, the pressure can be automatically controlled, the drainage pressure of negative pressure drainage is adjusted, the excessive pressure in the air storage chamber is prevented, the pain of the wound of a patient is caused by the excessive drainage pressure of the negative pressure, the intelligent degree is high.

Description

Controllable-pressure continuous negative-pressure drainage device for orthopedic nursing
Technical Field
The invention relates to the technical field of negative pressure drainage devices, in particular to a pressure-controllable continuous negative pressure drainage device for orthopedic nursing.
Background
The orthopaedics postoperative needs to place a negative pressure drainage device for nursing, is mostly used for large-area subcutaneous soft tissue injury after the orthopaedics operation, infectious osteoarticular diseases and the like, can generate negative pressure in a wound area besides the drainage function, keeps more efficient drainage function and clings to the wound surface, reduces exudation, prevents skin sheets from floating and the like, and is accepted by most doctors, the technology has the advantages of reducing the use of antibiotics, effectively reducing cross infection in a hospital, shortening hospitalization time, avoiding the need of daily dressing change, avoiding the pain of dressing change for patients, avoiding the labor of frequent dressing change for medical staff, relieving the psychological pressure of the patients to a great extent, at present, the drainage device for the orthopaedics nursing is mostly a disposable medical negative pressure drainage bag, needing manual operation of the medical staff in the drainage process, being difficult to control the drainage pressure and continuously drain, and increasing the pain of the drainage of the patients, and simultaneously increases the working pressure of medical staff.
The patent No. 201920385454.3 discloses a continuous negative pressure drainage device with controllable pressure for orthopedic nursing, which can generate continuous negative pressure by adjusting a negative pressure suction device, adjust different drainage negative pressures according to different disease states of focus, control drainage pressure and realize continuous drainage, relieve the pain of patient drainage and reduce the working pressure of medical staff, adjust the height of a telescopic rod, adjust the optimal drainage position of a needle cylinder by a sliding sleeve connection block, thereby facilitating the absorption of hydrops, simultaneously have simple operation and reduce the operation pressure of medical staff, and effectively avoid the blockage of the needle head by the reciprocating puncture of a dredging needle in respective semi-arc needle cavity, thereby improving the drainage effect and further reducing the psychological pressure of patients.
The pressure-controllable continuous negative pressure drainage device for orthopedic nursing disclosed in the above patent has the following disadvantages: 1. the pressure-controllable continuous negative pressure drainage device for orthopedic nursing disclosed in the patent needs to place all articles on a movable table for work, the movable table is large in size and inconvenient to carry and transport, and the optimal drainage position of a needle cylinder is adjusted by adjusting the height of a telescopic rod and a sliding sleeve connecting block during use, so that effusion is sucked, and the device is very troublesome; 2. the orthopedics nursing that publishes in the above-mentioned patent is with continuous negative pressure drainage device of controllable pressure need produce continuous negative pressure through artifical regulation negative pressure suction ware, and automatic regulation that can't be intelligent has two kinds of circumstances when the internal gas pressure of gas receiver is too high: firstly, the air compressor has too high inflation speed, which can cause the piston to slide in the cylinder too fast, so that the negative pressure drainage speed is too fast, secondly, the liquid in the liquid storage chamber is full, the gas can not be flushed into the cylinder, the gas stays in the gas storage chamber, and the gas still can be flushed into the cylinder forcibly when the gas pressure in the gas storage chamber is too high, thereby damaging the machine; therefore, a continuous negative pressure drainage device with controllable pressure for orthopedic nursing is provided.
Disclosure of Invention
The invention provides a pressure-controllable continuous negative pressure drainage device for orthopedic nursing, which has smaller volume and is convenient to carry, a filling sponge is filled in a storage box, the sponge is a porous material, has good water absorption and is softer and can rapidly rebound after being pressed, an air compressor groove, an air storage chamber groove, an air cylinder groove and a liquid storage tank are arranged on the surface of the filling sponge, the inner side wall of the air compressor groove is connected with an air compressor, the inner side wall of the air storage chamber groove is connected with the air storage chamber, the inner side wall of the air cylinder groove is connected with an air cylinder, the inner side wall of the liquid storage tank is connected with a liquid storage device, the air compressor, the air storage chamber, the air cylinder and the liquid storage device are protected from rigid collision, as the inner side wall of the liquid storage device is connected with the piston in a sliding manner and the top of the piston is fixedly connected with a limiting, when the liquid in the liquid storage device is full of liquid and needs to be replaced, the circular buckle pin is directly pulled out from the circular buckle groove at the bottom of the force arm, a new and empty liquid storage device is buckled into the circular buckle groove at the bottom of the force arm through the circular buckle pin at the top, the liquid storage device is convenient to replace, a liquid suction port at the bottom of the liquid storage device is provided with an external thread and is detachably connected with a mounting ring through the external thread and the internal thread, the bottom of the mounting ring is connected with a sucker through a soft air pipe, the sucker is held by a hand during use and is pulled to a wound to be used, the position does not need to be adjusted left and right, and the device is very convenient to replace, the pressure can be automatically controlled, the drainage pressure of negative pressure: air compressor's the gas velocity of inflation is too fast or the interior liquid of stock solution is full, can't pour into gas in the cylinder into, gas stops in the stock solution, when pressure sensor experienced the stock solution internal gas pressure and exceeded when setting for the threshold value, give control panel with information transfer, control panel control electromagnetism release valve opens, gas in the stock solution emits gradually, pressure sensor senses the stock solution internal gas pressure and resumes normally, give control panel with information transfer, control panel control electromagnetism release valve closes, prevent that the stock solution internal gas pressure is too big, the drainage pressure of negative pressure drainage is too big, cause patient's wound pain, also prevent to be full in the stock solution room and still continue the work of carrying out the negative pressure drainage, intelligent degree is high.
The specific technical scheme provided by the invention is as follows:
the invention provides a pressure-controllable continuous negative pressure drainage device for orthopedic nursing, which comprises an air compressor and a storage box, wherein the bottom of the air compressor is connected with one side of the top of an air storage chamber, the middle part of the air storage chamber is provided with an electromagnetic release valve, the top of the air storage chamber is provided with an air pressure monitoring interface and is connected with a pressure sensor through the air pressure monitoring interface, the other side of the top of the air storage chamber is fixedly connected with an air cylinder, the inner side wall of the air cylinder is connected with a piston in a sliding way, the top of the piston is fixedly connected with one side of the bottom of a force arm through a limiting column, the other side of the bottom of the force arm is provided with a circular buckling groove, the inner side wall of the circular buckling groove is detachably connected with a circular buckling pin, the bottom of the circular buckling pin is welded with a, the outer side wall of the liquid suction port is provided with an external thread and is detachably connected with the mounting ring through the external thread and the internal thread, and the bottom of the mounting ring is fixedly connected with the sucker through an air pipe.
Optionally, the signal output end of the pressure sensor is electrically connected with the signal input end of the control panel through an electric wire, and the signal output end of the control panel is electrically connected with the signal input end of the electromagnetic release valve through an electric wire.
Optionally, the piston includes metal skeleton and rubber layer, metal skeleton is circular and the lateral wall cladding has the rubber layer.
Optionally, the limiting column includes a guide sleeve, a limiting plate and a guide pillar, the lower portion of the inner side wall of the guide sleeve is connected with the top of the guide pillar, and the limiting plate is welded to the top of the guide pillar.
Optionally, the cross section of the sucker is circular, and the sucker is in a shape of a disc with a concave middle and is made of a nitrile rubber material.
Optionally, the storage box is filled with filling sponge, an air compressor groove, an air storage chamber groove, an air cylinder groove and a liquid storage tank groove are formed in the surface of the filling sponge, the inner side wall of the air compressor groove is connected with an air compressor, the inner side wall of the air storage chamber groove is connected with the air storage chamber, the inner side wall of the air cylinder groove is connected with an air cylinder, and the inner side wall of the liquid storage tank groove is connected with a liquid storage tank.
Optionally, the opening of the storage box is rotatably connected with the cover body through a hinge.
The invention has the following beneficial effects:
the embodiment of the invention provides a pressure-controllable continuous negative pressure drainage device for orthopedic nursing, which comprises the following components in part by weight:
1. the negative pressure drainage device has smaller volume and is convenient to carry, the storage box is filled with filling sponge, the sponge is a porous material, has good water absorption and is softer and can rebound rapidly when being pressed, the surface of the filling sponge is provided with an air compressor groove, an air storage chamber groove, an air cylinder groove and a liquid storage tank groove, the inner side wall of the air compressor groove is connected with an air compressor, the inner side wall of the air storage chamber groove is connected with the air storage chamber, the inner side wall of the air cylinder groove is connected with an air cylinder, the inner side wall of the liquid storage tank groove is connected with a liquid storage device to protect the air compressor, the air storage chamber, the air cylinder and the liquid storage device from rigid collision, because the inner side wall of the liquid storage device is connected with a piston in a sliding way and the top of the piston is fixedly connected with a limiting column, the top of, directly extract circular buckle round pin from the circular buckle inslot of arm of force bottom, it is new, empty reservoir passes through the circular buckle round pin buckle at top and advances the circular buckle inslot of arm of force bottom, be convenient for change the reservoir, the imbibition mouth of reservoir bottom has been seted up the external screw thread and can has been dismantled with the inner thread through external screw thread and internal thread and be connected, the collar bottom is connected with the sucking disc through mild trachea, handheld sucking disc draws the wound department and can use during the use, adjusting position about need not, it is very convenient, solve the inconvenient problem of very inconvenience of carrying and transporting and working of the orthopedics nursing that publishes in the above-mentioned patent with controllable pressure's continuous negative pressure drainage device.
2. The negative pressure drainage device can automatically control the pressure and adjust the drainage pressure of the negative pressure drainage, and when the air pressure in the air storage chamber is too high, the negative pressure drainage device has two conditions: the air compressor has too high air charging speed or the liquid storage chamber is full of liquid, the air cylinder can not be filled with air, the air stays in the air storage chamber, when pressure sensor experienced the gas receiver internal gas pressure and exceeded the settlement threshold value, give control panel with information transfer, control panel control electromagnetism release valve opens, gas in the gas receiver is emitted gradually, pressure sensor senses the gas receiver internal gas pressure and resumes normally, give control panel with information transfer, control panel control electromagnetism release valve closes, prevent that gas receiver internal gas pressure is too big, the drainage pressure of negative pressure drainage is too big, cause patient's wound pain, also prevent to be full of in the stock solution room and still continue the work of carrying out the negative pressure drainage, intelligent degree is high, solve the problem of the unable intelligent automatically regulated drainage pressure of the orthopedics nursing with controllable pressure's that publishes in the above-mentioned patent negative pressure drainage device that lasts.
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In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of a controllable pressure continuous negative pressure drainage device for orthopedic care according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a limiting column of the continuous negative pressure drainage device with controllable pressure for orthopedic care according to the embodiment of the invention.
In the figure: 1. a cover body; 2. a hinge; 3. a storage box; 4. filling sponge; 5. a force arm; 6. a circular snap groove; 7. a circular snap pin; 8. a limiting column; 801. a guide sleeve; 802. a limiting plate; 803. a guide post; 9. a piston; 901. a metal skeleton; 902. a rubber layer; 10. a liquid suction port; 11. a mounting ring; 12. an air tube; 13. a suction cup; 14. a control panel; 15. an air compressor; 16. an electromagnetic release valve; 17. an air storage chamber; 18. a cylinder; 19. a pressure sensor; 20. a reservoir.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The continuous negative pressure drainage device with controllable pressure for orthopedic nursing according to the embodiment of the present invention will be described in detail with reference to fig. 1-2.
Referring to fig. 1 and 2, the continuous negative pressure drainage device with controllable pressure for orthopedic nursing provided by the embodiment of the invention comprises an air compressor 15 and a storage box 3, wherein the bottom of the air compressor 15 is connected with one side of the top of an air storage chamber 17, an electromagnetic air release valve 16 is installed in the middle of the air storage chamber 17, an air pressure monitoring interface is installed at the top of the air storage chamber 17 and is connected with a pressure sensor 19 through the air pressure monitoring interface, the other side of the top of the air storage chamber 17 is fixedly connected with an air cylinder 18, the inner side wall of the air cylinder 18 is slidably connected with a piston 9, the top of the piston 9 is fixedly connected with one side of the bottom of a force arm 5 through a limiting column 8, a circular buckling groove 6 is formed in the other side of the bottom of the force arm 5, the inner side wall of the circular buckling groove 6 is detachably connected with a circular buckling pin 7, the, piston 9 and 20 inside wall sliding connection of reservoir, imbibition mouth 10 has been seted up to 20 bottoms of reservoir, the external screw thread has been seted up to imbibition mouth 10 lateral wall and has been connected with collar 11 can dismantle through external screw thread and internal thread, 11 bottoms of collar are through trachea 12 and sucking disc 13 fixed connection.
Illustratively, the negative pressure drainage device of the invention has small volume and is convenient to carry, the storage box 3 is filled with filling sponge 4, the sponge is a porous material with good water absorption and softness and can rebound rapidly when pressed, the surface of the filling sponge 4 is provided with an air compressor groove, an air storage chamber groove, an air cylinder groove and a liquid storage tank groove, the inner side wall of the air compressor groove is connected with an air compressor 15, the inner side wall of the air storage chamber groove is connected with an air storage chamber 17, the inner side wall of the air cylinder groove is connected with an air cylinder 18, the inner side wall of the liquid storage tank groove is connected with a liquid storage device 20 to protect the air compressor 15, the air storage chamber 17, the air cylinder 18 and the liquid storage device 20 from rigid collision, because the inner side wall of the liquid storage device 20 is connected with a piston 9 in a sliding manner and the top of the piston 9 is fixedly connected with a limit column, when the liquid in the reservoir 20 is full of liquid and needs to be replaced, the circular buckle pin 7 is directly pulled out from the circular buckle groove 6 at the bottom of the force arm 5, the reservoir 20 is new, the empty reservoir 20 is buckled into the circular buckle groove 6 at the bottom of the force arm 5 through the circular buckle pin 7 at the top, the reservoir 20 is convenient to replace, the liquid suction port 10 at the bottom of the reservoir 20 is provided with an external thread and is detachably connected with the mounting ring 11 through the external thread and the internal thread, the bottom of the mounting ring 11 is connected with the sucker 13 through the soft air pipe 12, the sucker 13 is pulled to a wound to be used by hand during use, the position is not required to be adjusted left and right, and the vacuum drainage device is very convenient to use, can automatically control pressure, adjust the drainage pressure of vacuum drainage, and has two conditions when the: air compressor 15's the gas filling rate is too fast or the liquid in the liquid storage chamber 20 is full, can't inject gas in the cylinder 18, gas stops in the gas storage chamber 17, when pressure sensor 19 experienced the gas pressure in the gas storage chamber 17 and exceeded the settlement threshold value, transmit information to control panel 14, control panel 14 control electromagnetism release valve 16 opens, emit the gas in the gas storage chamber 17 gradually, pressure sensor 19 senses the gas pressure in the gas storage chamber 17 and resumes normally, transmit information to control panel 14, control panel 14 control electromagnetism release valve 16 closes, prevent the too big gas pressure in the gas storage chamber 17, the drainage pressure of negative pressure drainage is too big, cause patient's wound pain, also prevent to fill in the liquid storage device 20 and still continue the work of negative pressure drainage, intelligent degree is high.
Referring to fig. 1, the signal output end of the pressure sensor 19 is electrically connected to the signal input end of the control panel 14 through a wire, and the signal output end of the control panel 14 is electrically connected to the signal input end of the electromagnetic release valve 16 through a wire.
For example, the pressure sensor 19 can transmit air pressure information to the control panel 14, and the control panel 14 controls the electromagnetic release valve 16 to open or close according to the air pressure information.
Referring to fig. 1, the piston 9 includes a metal skeleton 901 and a rubber layer 902, the metal skeleton 901 is circular, and the outer side wall of the metal skeleton 901 is covered with the rubber layer 902.
In an example, the metal framework 901 is circular, the outer side wall of the metal framework is coated with the rubber layer 902, the metal framework 901 is high in hardness and not prone to deformation and damage, the rubber layer 902 is soft and elastic, and sealing performance is high.
Referring to fig. 1 and 2, the limiting column 8 includes a guide sleeve 801, a limiting plate 802 and a guide column 803, the lower portion of the inner side wall of the guide sleeve 801 is connected to the top of the guide column 803, and the limiting plate 802 is welded to the top of the guide column 803.
Illustratively, the lower part of the inner side wall of the guide sleeve 801 is connected with the top of the guide column 803, a limiting plate 802 is welded on the top of the guide column 803, and the guide column 803 can slide up and down on the inner side wall of the guide sleeve 801, so that the work is facilitated.
Referring to fig. 1, the cross section of the suction cup 13 is circular, and the suction cup 13 is in the shape of a disc with a concave middle and is made of nitrile rubber.
According to the characteristics of animals, a vacuum suction cup 13, namely a vacuum lifting appliance, is invented and is one of vacuum equipment actuators, the suction cup 13 is made of nitrile rubber, and has large breaking force.
Referring to fig. 1, the storage box 3 is filled with filling sponge 4, the surface of the filling sponge 4 is provided with an air compressor groove, an air storage chamber groove, an air cylinder groove and a liquid storage tank groove, the inner side wall of the air compressor groove is connected with an air compressor 15, the inner side wall of the air storage chamber groove is connected with an air storage chamber 17, the inner side wall of the air cylinder groove is connected with an air cylinder 18, and the inner side wall of the liquid storage tank groove is connected with a liquid storage device 20.
The example, the sponge is a porous material, has good hydroscopicity, it is comparatively soft, press and to kick-back rapidly, fill 4 surfaces of sponge and seted up the air compressor groove, the gas receiver groove, cylinder groove and stock solution groove, the air compressor inslot lateral wall is connected with air compressor 15, the gas receiver inslot lateral wall is connected with gas receiver 17, the cylinder inslot lateral wall is connected with cylinder 18, the stock solution inslot lateral wall is connected with reservoir 20, protection air compressor 15, the gas receiver 17, cylinder 18 and reservoir 20 do not receive the rigidity collision.
Referring to fig. 1, the opening of the storage case 3 is rotatably connected to the lid 1 by a hinge 2.
Illustratively, the opening part of the storage box 3 is rotatably connected with the cover body 1 through a hinge 2, so that the storage box 3 can be conveniently opened for work.
When in use, a worker places the sucker 13 at a wound, an external power supply supplies power, the air compressor 15 (the model parameter of the air compressor 15 is 370, 5v, the working principle is that the compressor is directly driven by a motor to enable a crankshaft to generate rotary motion and drive a connecting rod to enable a piston to generate reciprocating motion so as to cause the volume change of an air cylinder) is turned on through an external switch, air enters the air cylinder through an air filter (a silencer) through an air inlet valve due to the change of the pressure in the air cylinder, compressed air enters an air storage tank through an exhaust pipe and a one-way valve (a check valve) under the action of an exhaust valve due to the reduction of the volume of the air cylinder in a compression stroke, the air storage tank is automatically stopped under the control of a pressure switch when the exhaust pressure reaches a rated pressure of 0.7MPa, the pressure switch is automatically connected and started when the pressure of the air storage tank is reduced to, air receiver 17 is linked together with cylinder 18, piston 9 in pushing away the cylinder 18 after the air compression to certain pressure makes guide pillar 803 upwards slide, because the limiting plate 802 welding at guide pillar 803 top is at guide pin bushing 801 inside wall, guide pillar 803 upwards slides and makes arm of force 5 upwards slide, drive the spacing post rebound at reservoir 20 top, upwards stimulate piston 9 in the reservoir 20 and form the negative pressure, carry out the drainage, in attracting reservoir 20 with the extravasated blood or the sepage in the wound face of postoperative, there are two kinds of circumstances when air receiver 17 internal gas pressure is too high: when the air compressor 15 is inflated at an excessively high speed or the liquid storage chamber 20 is full of liquid, the air cannot be filled into the air cylinder 18, the air stays in the air storage chamber 17, when the pressure sensor 19 senses that the air pressure in the air storage chamber 17 exceeds a set threshold (the model parameter of the pressure sensor 19 is 0-1000 mmHg, the working principle is that a resistance strain gauge is one of main components of a piezoresistive strain sensor, the working principle of a metal resistance strain gauge is that a strain resistor adsorbed on a base material generates resistance change along with mechanical deformation, commonly called resistance strain effect), information is transmitted to the control panel 14 (the model of the control panel is LM3S811 singlechip), the control panel 14 controls the opening of the electromagnetic air release valve 16 (the model parameter of the electromagnetic air release valve 16 is 0-350 mmHg, 3v, the working principle is that a closed cavity is arranged in an electromagnetic valve, through holes are formed at different positions, every jogged joint different oil pipe, be the piston in the middle of the chamber, the two sides are two electro-magnets, which side's magnet coil circular telegram valve body will be attracted which side, open or close different oil discharge hole through the removal of control valve body, and the inlet port is normally open, and hydraulic oil will get into different oil discharge pipe, then promotes the piston of hydro-cylinder through the pressure of oil, and the piston drives the piston rod again, and the piston rod drives mechanical device and removes, just so opens and close of control solenoid valve through the electric current break-make of control electro-magnet. ) Gas in the gas receiver 17 is emitted gradually, and pressure sensors 19 senses 17 internal gas pressure of gas receiver and resumes normally, gives control panel 14 with information transfer, and control panel 14 control electromagnetism release valve 16 closes, prevents 17 internal gas pressure of gas receiver too big, and the drainage pressure of negative pressure drainage is too big, causes patient's wound pain, has also prevented to fill in the reservoir 20 and has still continued the work of carrying out the negative pressure drainage, and intelligent degree is high.
The invention relates to a continuous negative pressure drainage device with controllable pressure for orthopedic nursing, which comprises a body 1 and a cover body; 2. a hinge; 3. a storage box; 4. filling sponge; 5. a force arm; 6. a circular snap groove; 7. a circular snap pin; 8. a limiting column; 801. a guide sleeve; 802. a limiting plate; 803. a guide post; 9. a piston; 901. a metal skeleton; 902. a rubber layer; 10. a liquid suction port; 11. a mounting ring; 12. an air tube; 13. a suction cup; 14. a control panel; 15. an air compressor; 16. an electromagnetic release valve; 17. an air storage chamber; 18. a cylinder; 19. a pressure sensor; 20. the reservoir and the components are all standard parts or parts known to the person skilled in the art, the structure and the principle of which are known to the person skilled in the art by means of technical manuals or by means of routine experimentation.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.

Claims (7)

1. The utility model provides a continuous negative pressure drainage device of controllable pressure for orthopedic nursing, includes air compressor (15) and storage box (3), its characterized in that, air compressor (15) bottom is connected with reservoir (17) top one side, reservoir (17) mid-mounting has electromagnetic release valve (16), reservoir (17) top is installed atmospheric pressure monitoring interface and is connected with pressure sensors (19) through atmospheric pressure monitoring interface, reservoir (17) top opposite side and cylinder (18) fixed connection, cylinder (18) inside wall and piston (9) sliding connection, piston (9) top is through spacing post (8) and arm of force (5) bottom one side fixed connection, circular buckle groove (6) and circular buckle groove (6) inside wall and circular buckle round pin (7) detachable connection have been seted up to arm of force (5) bottom opposite side, circular buckle round pin (7) bottom welding has spacing post (8) and is connected with piston (9) through spacing post (8), piston (9) and reservoir (20) inside wall sliding connection, imbibition mouth (10) have been seted up to reservoir (20) bottom, imbibition mouth (10) lateral wall has been seted up the external screw thread and has been passed through external screw thread and internal thread and can dismantle with collar (11) and be connected, collar (11) bottom is through trachea (12) and sucking disc (13) fixed connection.
2. The continuous negative pressure drainage device with controllable pressure for orthopedic nursing according to claim 1, characterized in that the signal output end of the pressure sensor (19) is electrically connected with the signal input end of the control panel (14) through a wire, and the signal output end of the control panel (14) is electrically connected with the signal input end of the electromagnetic release valve (16) through a wire.
3. The continuous negative pressure drainage device with controllable pressure for orthopedic nursing according to claim 1, characterized in that the piston (9) comprises a metal skeleton (901) and a rubber layer (902), the metal skeleton (901) is circular and the outer side wall is coated with the rubber layer (902).
4. The continuous negative pressure drainage device with controllable pressure for orthopedic nursing according to claim 1, characterized in that the limiting column (8) comprises a guide sleeve (801), a limiting plate (802) and a guide pillar (803), the lower part of the inner side wall of the guide sleeve (801) is connected with the top of the guide pillar (803), and the limiting plate (802) is welded on the top of the guide pillar (803).
5. The continuous negative pressure drainage device with controllable pressure for orthopedic nursing according to claim 1, characterized in that the cross section of the suction cup (13) is circular, and the suction cup (13) is in the shape of a disc with a concave middle and made of nitrile rubber.
6. The continuous negative pressure drainage device with controllable pressure for orthopedic nursing according to claim 1, characterized in that the storage box (3) is filled with filling sponge (4), the surface of the filling sponge (4) is provided with an air compressor groove, an air storage chamber groove, an air cylinder groove and a liquid storage tank groove, the air compressor inside groove wall is connected with an air compressor (15), the air storage chamber inside groove wall is connected with an air storage chamber (17), the air cylinder inside groove wall is connected with an air cylinder (18), and the liquid storage tank inside groove wall is connected with a liquid storage tank (20).
7. A controlled pressure, continuous negative pressure drainage device for orthopedic care according to claim 1, characterized in that the opening of the storage case (3) is rotatably connected to the cover (1) by a hinge (2).
CN202010708318.0A 2020-07-22 2020-07-22 Controllable-pressure continuous negative-pressure drainage device for orthopedic nursing Withdrawn CN111870746A (en)

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CN202010708318.0A CN111870746A (en) 2020-07-22 2020-07-22 Controllable-pressure continuous negative-pressure drainage device for orthopedic nursing

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Application Number Priority Date Filing Date Title
CN202010708318.0A CN111870746A (en) 2020-07-22 2020-07-22 Controllable-pressure continuous negative-pressure drainage device for orthopedic nursing

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113521403A (en) * 2021-06-21 2021-10-22 南通市通州区人民医院 Controllable-pressure continuous negative-pressure drainage device for orthopedic nursing
CN113975475A (en) * 2021-10-27 2022-01-28 王晶 Flow-controllable negative pressure drainage device for orthopedic postoperative care
CN113521403B (en) * 2021-06-21 2024-06-07 南通市通州区人民医院 Continuous negative pressure drainage device with controllable pressure for orthopedic nursing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113521403A (en) * 2021-06-21 2021-10-22 南通市通州区人民医院 Controllable-pressure continuous negative-pressure drainage device for orthopedic nursing
CN113521403B (en) * 2021-06-21 2024-06-07 南通市通州区人民医院 Continuous negative pressure drainage device with controllable pressure for orthopedic nursing
CN113975475A (en) * 2021-10-27 2022-01-28 王晶 Flow-controllable negative pressure drainage device for orthopedic postoperative care

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