CN110711272A

CN110711272A - Automatic negative pressure suction device of pressure regulating

Info

Publication number: CN110711272A
Application number: CN201911180247.5A
Authority: CN
Inventors: 陈黎敏; 崔志明; 徐冠华; 顾海燕
Original assignee: Nantong First Peoples Hospital
Current assignee: Nantong First Peoples Hospital
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-01-21

Abstract

The invention discloses an automatic pressure-regulating negative pressure suction device which comprises a liquid collecting bottle, a liquid concentration sensor, a negative pressure bottle body and a pressure regulating meter, wherein a connecting cover body is installed on the upper end surface of the liquid collecting bottle, a liquid collecting bag is fixed inside the connecting cover body, a left connecting pipe orifice penetrates through the upper end surface of the connecting cover body, the liquid concentration sensor is installed on the upper end orifice of the left connecting pipe orifice, the pressure regulating meter is arranged on the upper right side of the liquid concentration sensor, the negative pressure bottle body is installed on the lower end orifice of the pressure regulating meter, a buoy is arranged inside the negative pressure bottle body, and a negative pressure interface is installed on the side end surface of the negative pressure bottle body. The automatic pressure-regulating negative pressure suction device is mainly characterized in that automatic regulation can be realized by negative pressure during suction of flushing fluid and drainage fluid in the sputum suction and operation processes through automatic pressure regulation, so that medical personnel can be replaced to select proper negative pressure to perform manual regulation, and the operation complexity of the medical personnel is reduced.

Description

Automatic negative pressure suction device of pressure regulating

Technical Field

The invention relates to the technical field of medical instruments, in particular to an automatic pressure regulating negative pressure suction device.

Background

The trachea sputum aspiration is the first and key measure in the management of the respiratory tract of a mechanically ventilated patient, aims to keep the airway smooth, prevents partial or complete airway intubation blockage, and plays an important role in controlling respiratory tract infection. Sputum aspiration itself increases the risk of certain complications, including airway mucosal injury, infection, atelectasis, bronchospasm, hypoxemia, irritative asphyxia, increased intracranial pressure, and severe cases of cardiac arrest and even death.

The negative pressure is the driving force for sputum aspiration, and there are data showing that the aspiration negative pressure is proportional to the injury degree of airway mucosa, and different sputum aspiration negative pressures have different effects on hemodynamics of mechanically ventilated patients. In addition, the duration of sputum aspiration, the amount of sputum and the viscosity of sputum all affect the pressure. At present, there is still controversy about how much negative pressure should be used for sputum aspiration. The safe and effective sputum suction negative pressure is set according to the specific conditions of the patient, so that a better sputum suction effect can be achieved, the effectiveness of mechanical ventilation is maintained, and various complications can be reduced. The pressure value of the negative pressure suction apparatus used clinically at present all needs manual regulation, and can not set the most suitable negative pressure value of the patient. Therefore, the automatic pressure-regulating suction device is designed.

Disclosure of Invention

The invention aims to provide an automatic pressure-regulating negative pressure suction device, which solves the problems that the suction device in the existing market needs to manually regulate proper negative pressure due to different thickness of sputum during sputum suction operation, increases the workload of medical workers, and has blindness and complexity in operation.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an automatic negative pressure suction device of pressure regulating, includes collecting bottle, liquid concentration sensor, negative pressure bottle and pressure regulation table, the connection lid is installed to the up end of collecting bottle, and connects the inside of lid and be fixed with a collecting bag, the up end of connecting the lid runs through there is the left side and connects the mouth of pipe, liquid concentration sensor installs in the orificial up end of left side connection, liquid concentration sensor's the upper right side is provided with the pressure regulation table, the negative pressure bottle is installed in the lower port of pressure regulation table, and the inside of negative pressure bottle is provided with the buoy, the negative pressure interface is installed to the side end face of negative pressure bottle.

Preferably, the outer surface swing joint of liquid collecting bottle has fixed axis body, and the side end face of fixed axis body is provided with the fixed plate, the right-hand member mouth of fixed plate is provided with fixed connection board, and the below of fixed axis body is installed and is supported the buckle.

Preferably, the fixed axis body passes through and constitutes revolution mechanic between collector bottle and the fixed plate, and the appearance structure of fixed plate is the arc structure, the fixed plate closely combines with the up end of connecting the lid, and constitutes the block structure between fixed plate and the fixed connection board.

Preferably, the right side of the left pipe connecting opening is provided with a right pipe connecting opening, and the upper port of the liquid concentration sensor is connected with a suction pipe.

Preferably, the suction tube is connected with the liquid concentration sensor in a sleeved manner, the liquid concentration sensor forms a communicating structure with the left connecting tube opening through the suction tube, and the left connecting tube opening and the right connecting tube opening penetrate through the upper end face of the connecting cover body.

Preferably, the pressure regulating meter is internally provided with a controller, the right side of the controller is provided with a reset key, and a regulating button is arranged below the reset key.

Preferably, the liquid concentration sensor and the reset key are electrically connected with the controller, and the reset key penetrates through the outer surface of the negative pressure aspirator and is in a convex shape.

Preferably, an electric pull rod is arranged above the buoy, and a piston is fixed at the telescopic end of the electric pull rod.

Preferably, the connection mode between electric pull rod and the controller is electric connection, and the right side of negative pressure interface is connected with the negative pressure pipe, the negative pressure pipe passes through to constitute the connectivity between collecting bottle and the negative pressure bottle, and pressure regulation table passes through threaded connection with the negative pressure bottle and constitutes detachable construction.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention can realize the automatic adjustment of negative pressure when absorbing flushing fluid and drainage fluid in the sputum suction and operation processes through automatic pressure adjustment so as to replace the manual adjustment of medical personnel, reduce the operation complexity of the medical personnel and facilitate the use;

2. the pressure regulating meter is provided with the regulating button and the reset button, the negative pressure suction apparatus is quickly restored to the initial negative pressure state by pressing the reset button, the operation of personnel is reduced, certain operation time is saved, the structural design is reasonable, and the use is convenient;

3. the invention can realize the adjustment of proper negative pressure through the liquid concentration sensor and the controller, achieves the aim of effective suction with minimum pressure, reduces the complexity of operation, is convenient to use, and simultaneously reduces the possible airway mucosa injury caused by overlarge negative pressure in sputum suction operation. And the effect of buoy can lead to the buoy come-up when liquid inhales into, blocks up the inside through-hole of negative pressure suction apparatus, prevents that liquid from flowing backward and leading to the inside jam and the damage of automatic pressure regulating device.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the structure of the pressure adjustment gauge according to the present invention;

FIG. 3 is a circuit flow diagram of the present invention;

FIG. 4 is a schematic top view of the connecting cover according to the present invention;

FIG. 5 is a cross-sectional view of the negative pressure bottle of the present invention.

In the figure: 1. a liquid collecting bottle; 2. connecting the cover body; 3. a liquid collecting bag; 4. a fixed shaft body; 5. a fixing plate; 6. fixing the connecting plate; 7. a left pipe connecting port; 8. a right pipe connecting port; 9. a liquid concentration sensor; 10. a suction tube; 11. a negative pressure tube; 12. a negative pressure interface; 13. a negative pressure bottle body; 14. a float; 15. a piston; 16. an electric pull rod; 17. a controller; 18. resetting the key; 19. an adjusting knob; 20. a pressure regulating gauge; 21. and a support buckle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and 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.

Referring to fig. 1-5, an automatic pressure-regulating negative pressure suction device comprises a liquid collecting bottle 1, a liquid concentration sensor 9, a negative pressure bottle body 13 and a pressure regulating gauge 20, wherein a connecting cover body 2 is installed on the upper end surface of the liquid collecting bottle 1, a liquid collecting bag 3 is fixed inside the connecting cover body 2, the upper end surface of the connecting cover body 2 penetrates through a left connection pipe opening 7, the liquid concentration sensor 9 is installed on the upper port of the left connection pipe opening 7, the pressure regulating gauge 20 is installed on the upper right side of the liquid concentration sensor 9, the negative pressure bottle body 13 is installed on the lower port of the pressure regulating gauge 20, a buoy 14 is arranged inside the negative pressure bottle body 13, a negative pressure port 12 is installed on the side end surface of the negative pressure bottle body 13, a fixing shaft body 4 is movably connected to the outer surface of the liquid collecting bottle 1, a fixing plate 5 is arranged on the side end surface of the fixing shaft body 4, a fixing, the fixed shaft body 4 forms a rotating structure through the liquid collecting bottle 1 and the fixed plate 5, the appearance structure of the fixed plate 5 is an arc structure, the fixed plate 5 is tightly combined with the upper end surface of the connecting cover body 2, a clamping structure is formed between the fixed plate 5 and the fixed connecting plate 6, the right side of the left connecting pipe orifice 7 is provided with a right connecting pipe orifice 8, the upper end orifice of the liquid concentration sensor 9 is connected with a suction pipe 10, the suction pipe 10 is connected with the liquid concentration sensor 9 in a sleeved mode, the liquid concentration sensor 9 forms a communicating structure through the suction pipe 10 and the left connecting pipe orifice 7, the left connecting pipe orifice 7 and the right connecting pipe orifice 8 both penetrate through and are connected with the upper end surface of the cover body 2, and the automatic negative pressure regulation can be realized according to the thin thickness of sputum and drainage liquid when flushing liquid and drainage liquid are sucked in the sputum suction and operation processes through automatic pressure regulation, manual adjustment of medical staff is replaced, operation complexity of the medical staff is reduced, and the use is convenient;

the pressure regulating meter 20 is internally provided with a controller 17, the right side of the controller 17 is provided with a reset key 18, a regulating button 19 is arranged below the reset key 18, the liquid concentration sensor 9 and the reset key 18 are both electrically connected with the controller 17, and the reset key 18 penetrates through the outer surface of the pressure regulating meter 20 and is in a convex shape, so that the pressure regulating meter 20 is provided with the regulating button 19 and the reset key 18, the regulating button 19 can set initial negative pressure according to conditions, the negative pressure value is the highest value in a safe pressure range, after the device is used, the pressure regulating meter 20 is quickly restored to the initial negative pressure state by pressing the reset key 18 electrically connected with the controller 17, the proper negative pressure can be dynamically regulated again according to the existing conditions of a patient during operation, the operation of the personnel is reduced, and the time is saved to a certain extent, the structure is reasonable in design and convenient to use;

an electric pull rod 16 is arranged above the buoy 14, a piston 15 is fixed at the telescopic end of the electric pull rod 16, the electric pull rod 16 is electrically connected with a controller 17, the right side of the negative pressure interface 12 is connected with a negative pressure pipe 11, the negative pressure pipe 11 forms a communication structure with an automatic pressure regulating device through a liquid collecting bottle 1, and a pressure regulating meter 20 and a negative pressure bottle body 13 form a detachable structure through threaded connection, so that the sputum concentration information in the airway of a patient can be obtained under the initial state of negative pressure through a liquid concentration sensor 9, an information instruction is transmitted to the controller 17, the controller 17 sends an operation instruction to the electric pull rod 16 through information processing and conversion, the electric pull rod 16 pulls the piston 15 to move up and down, the adjustment of the negative pressure in the negative pressure bottle body 13 can be realized, and the sputum can be sucked out by using proper negative pressure, reduce the air flue mucosa damage, reduced the loaded down with trivial details nature of operation, convenient to use, and buoy 14's effect can lead to buoy 14 to go up to float when water inhales into, blocks up the inside through-hole of pressure regulation table 20, prevents that liquid from inhaleing and leading to the machine to damage.

The working principle is as follows: for the negative pressure suction device, firstly, the device is arranged at the head of a patient, then, the device is powered on, then, the right port of the suction tube 10 is sleeved and arranged at the liquid detection port of the liquid concentration sensor 9 in a sleeved mode, then, the liquid outlet port of the liquid concentration sensor 9 is connected with the left connecting tube port 7 below the suction tube, so that the suction tube 10 is arranged, then, the connecting cover body 2 which can be fixedly connected with the left connecting tube port 7 is sleeved and arranged right above the liquid collecting bottle 1 from top to bottom, the connecting cover body 2 closes the upper port of the liquid collecting bottle 1, the fixing plate 5 is turned over clockwise by utilizing the rotating structure of the fixing shaft body 4 and the fixing plate 5, and the connecting cover body 2 is firmly fixed at the upper port of the liquid collecting bottle 1 after the fixing plate 5 is combined with the fixing connecting plate 6;

then, a power line of the liquid concentration sensor 9 is connected with a data interface of a controller 17 in a pressure regulating meter 20, then, a left port of a negative pressure tube 11 can be connected with a right connecting tube port 8 through sleeving, a right port of the negative pressure tube 11 is connected with a negative pressure interface 12, then, a port of a suction tube 10 is blocked, a regulating button 19 is manually rotated to reach a standard negative pressure high value, then, the left port of the suction tube 10 can be connected with a sputum suction tube, a drainage tube or a suction head (for surgery) of an aspirator to enter a cavity of a patient, sputum of the patient or washing liquid in the cavity flows into the liquid concentration sensor 9 through the suction tube 10 through early-stage negative pressure, and the liquid concentration sensor 9 analyzes the liquid concentration;

the obtained data is transmitted to the controller 17 with the model number of AT89S51, after the controller 17 processes and calculates the information, the negative pressure value required by sputum suction in the airway of the patient AT present is obtained, the information of the required negative pressure is transmitted to the electric pull rod 16 arranged in the negative pressure bottle body 13, so that the electric pull rod 16 pulls the piston 15 to move up and down, the negative pressure in the negative pressure bottle body 13 can reach the calculated negative pressure value through the movement of the piston 15, the automatic negative pressure value adjustment is realized, the operation difficulty of workers is reduced, after the suction is finished, the reset key 18 is pressed to send an instruction to the controller 17, and the electric pull rod 16 pulls the piston 15 to return to the initial position. In addition, in order to facilitate the use of the device, the supporting buckle 21 can be connected with the clamping groove on the rear end face of the pressure regulating gauge 20, so that the pressure regulating gauge 20 is combined with the liquid collecting bottle 1, the occupied area of the device is reduced, and the carrying is convenient and fast, and the use process and the working principle of the device are realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic negative pressure suction device of pressure regulating, includes collecting bottle (1), liquid concentration sensor (9) and negative pressure bottle (13), pressure regulation table (20), its characterized in that: the utility model discloses a liquid collection bottle, including liquid collection bottle (1), connection lid (2) are installed to the up end of liquid collection bottle (1), and the inside of connecting lid (2) is fixed with liquid collection bag (3), the up end of connecting lid (2) runs through and has left side to connect mouth of pipe (7), install in the up end of left side to connect mouth of pipe (7) liquid concentration sensor (9), the upper right side of liquid concentration sensor (9) is provided with pressure regulation table (20), negative pressure bottle (13) are installed in the lower port of pressure regulation table (20), and the inside of negative pressure bottle (13) is provided with buoy (14), negative pressure interface (12) are installed to the side end face of negative pressure bottle (13).

2. The automatic pressure-regulating negative pressure suction device according to claim 1, characterized in that: the outer surface swing joint of collecting liquid bottle (1) has fixed axis body (4), and the side end face of fixed axis body (4) is provided with fixed plate (5), the right-hand member mouth of fixed plate (5) is provided with fixed connection board (6), and installs support buckle (21) below fixed axis body (4).

3. The automatic pressure-regulating negative pressure suction device according to claim 2, characterized in that: fixed axis body (4) constitute revolution mechanic between through collecting liquid bottle (1) and fixed plate (5), and the appearance structure of fixed plate (5) is the arc structure, fixed plate (5) and the up end of being connected lid (2) combine closely, and constitute the block structure between fixed plate (5) and fixed connection board (6).

4. The automatic pressure-regulating negative pressure suction device according to claim 1, characterized in that: the right side of the left pipe connecting port (7) is provided with a right pipe connecting port (8), and the upper port of the liquid concentration sensor (9) is connected with a suction pipe (10).

5. The automatic pressure-regulating negative pressure suction device according to claim 4, characterized in that: the suction tube (10) is connected with the liquid concentration sensor (9) in a sleeved mode, the liquid concentration sensor (9) forms a communicating structure with the left nozzle (7) through the suction tube (10), and the left nozzle (7) and the right nozzle (8) penetrate through the upper end face of the connecting cover body (2).

6. The automatic pressure-regulating negative pressure suction device according to claim 1, characterized in that: the pressure regulating meter is characterized in that a controller (17) is installed inside the pressure regulating meter (20), a reset key (18) is arranged on the right side of the controller (17), and a regulating button (19) is arranged below the reset key (18).

7. The automatic pressure-regulating negative pressure suction device according to claim 6, characterized in that: the liquid concentration sensor (9) and the reset key (18) are electrically connected with the controller (17), and the outer surface of the reset key (18) penetrating through the pressure adjusting meter (20) is convex.

8. The automatic pressure-regulating negative pressure suction device according to claim 1, characterized in that: an electric pull rod (16) is arranged above the buoy (14), and a piston (15) is fixed at the telescopic end of the electric pull rod (16).

9. The automatic pressure regulating negative pressure suction device according to claim 8, characterized in that: the connection mode between electric pull rod (16) and controller (17) is electric connection, and the right side of negative pressure interface (12) is connected with negative pressure pipe (11), constitute connectivity between negative pressure pipe (11) through collecting liquid bottle (1) and negative pressure bottle (13), and pressure regulation table (20) and negative pressure bottle (13) pass through threaded connection and constitute detachable construction.