CN-121971795-A - One-way valve for expectoration machine

CN121971795ACN 121971795 ACN121971795 ACN 121971795ACN-121971795-A

Abstract

The application belongs to the technical field of devices for a sputum-expectoration machine, and particularly relates to a one-way valve for the sputum-expectoration machine, which comprises a bracket, wherein the top wall of the bracket is fixedly connected with a valve body, a connecting pipe penetrates through the valve body, an air inlet channel and an air outlet channel are arranged in the valve body, the air inlet channel is communicated with the output end of a heating humidifier, the top wall of the valve body is fixedly communicated with an output pipe, the air inlet channel and the air outlet channel are respectively communicated with the output pipe, the bottom wall of the valve body is fixedly communicated with a discharge pipe, and the discharge pipe is communicated with the air outlet channel.

Inventors

WANG HONGXING
LUO SHUAI
YAN YING
SUN PENGFEI
LIU YI
KONG XUEYING
PAN KE
LI WEI
WANG LIN
QIN FANGMING

Assignees

重庆大学附属三峡医院

Dates

Publication Date: 20260505
Application Date: 20260313

Claims (8)

1. The utility model provides a check valve for expectoration machine, includes support (1), support (1) roof fixedly connected with valve body (2), wherein run through on valve body (2) connecting pipe (21), connecting pipe (21) are an axial cavity way, valve body (2) both sides lateral wall fixedly connected with input tube (4) and first check valve (63) respectively, input tube (4) and first check valve (63) communicate with the both ends of connecting pipe (21) respectively and set up, the coaxial fixed intercommunication of output of first check valve (63) has heating humidifier (64), be equipped with inlet channel (6) and outlet channel (7) in valve body (2), inlet channel (6) and heating humidifier (64)'s output intercommunication sets up, outlet channel (7) and connecting pipe (21) circumference wall intercommunication sets up, valve body (2) roof fixed intercommunication has output tube (3), inlet channel (6) and outlet channel (7) communicate with output tube (3) respectively, valve body (2) fixed intercommunication has bottom wall (5), support (5) are arranged with outlet channel (7), discharge channel (5) are arranged through with discharge channel (5); An input ring (41) is coaxially and fixedly connected to one side of the inner circumferential wall of the input pipe (4), and an input plate (42) is axially and slidably connected to the inner circumferential wall of the input ring (41); An upper bearing pipe (51) is fixedly connected between the top end of the discharge pipe (5) and the bottom wall of the valve body (2) in a coaxial manner, a movable plate (53) is matched with the bottom wall of the upper bearing pipe (51), and the movable plate (53) is axially and slidably connected with the inner circumferential wall of the discharge pipe (5); The air inlet channel (6) comprises a communicating pipe (61) and an air inlet pipe (62) which are arranged in the valve body (2), one end of the communicating pipe (61) is communicated with the heating humidifier (64) through an air pipe, and two ends of the air inlet pipe (62) are respectively communicated with the communicating pipe (61) and the output pipe (3).
2. A one-way valve for a sputum-expectoration machine as set forth in claim 1, wherein a guide post (43) is axially and slidably connected to the inner circumferential wall of the input ring (41), the guide post (43) is fixedly connected with the bottom wall of the input plate (42), the input ring (41) is blocked in the initial state of the input plate (42), the input plate (42) leaves the input ring (41) when positive pressure is fed, the input plate (42) leaves the blocked input ring (41) when negative pressure is pumped, and when the sputum-expectoration pipeline is contacted with the tracheal wall when negative pressure pumping of the sputum-expectoration machine occurs, the air pressures at two sides of the input plate (42) tend to be balanced, and the input plate (42) blocks the input ring (41).
3. A one-way valve for a expectoration machine is characterized in that a movable column (52) is axially and slidably connected to the inner circumferential wall of a discharge pipe (5), one end of the movable column (52) is fixedly connected with the bottom wall of a movable plate (53), the other end of the movable column (52) is coaxially and fixedly connected with a plugging plate (56), one side of the inner circumferential wall of the discharge pipe (5) is coaxially and fixedly connected with a receiving ring (55), the receiving ring (55) is arranged on the moving path of the plugging plate (56), the plugging plate (56) is matched with the receiving ring (55), when the plugging plate (56) is matched with the receiving ring (55), the plugging plate (56) plugs the receiving ring (55), a cavity is formed among the top wall of the plugging plate (56), the top wall of the receiving ring (55) and the inner circumferential wall of the discharge pipe (5), when negative pressure suction is carried out, sputum flows to the cavity, and when positive pressure is carried, the plugging plate (56) is no longer matched with the receiving ring (55) and the sputum flows out under the action of the discharge pipe (5).
4. The one-way valve for a expectoration machine according to claim 1, wherein the air inlet channel (6) comprises a communicating pipe (61) and an air inlet pipe (62) which are arranged in the valve body (2), one end of the communicating pipe (61) is communicated with the heating humidifier (64) through an air pipe, and two ends of the air inlet pipe (62) are respectively communicated with the communicating pipe (61) and the output pipe (3).
5. The one-way valve for a expectoration machine according to claim 4, wherein when the positive pressure air is fed, the positive pressure air enters the input pipe (4) and flows to the output pipe (3) through the connecting pipe (21), the first one-way valve (63), the heating humidifier (64) and the air inlet pipe (62), and the flowing direction of the first one-way valve (63) is from the connecting pipe (21) to the heating humidifier (64).
6. The one-way valve for a expectoration machine according to claim 1, wherein the air outlet channel (7) comprises a guide tube (72), an output tube (3) and an inclined tube (71) which are arranged on the valve body (2), the output tube (3) is communicated with the connecting tube (21), two ends of the guide tube (72) are respectively communicated with the discharge tube (5) and the output tube (3), two ends of the inclined tube (71) are respectively communicated with the guide tube (72) and the output tube (3), and a second one-way valve (73) is coaxially and fixedly connected in the output tube (3).
7. The one-way valve for a expectoration machine according to claim 6, wherein the inclined tube (71) is obliquely arranged, a blocking block which is arranged in a semicircle is coaxially and fixedly connected in the inclined tube (71), when negative pressure is pumped, negative pressure air enters the output tube (3) and enters the input tube (4) through the guide tube (72), the inclined tube (71), the air outlet tube (75), the second one-way valve (73) and the connecting tube (21), when negative pressure air carries sputum and enters the inclined tube (71) and the air outlet tube (75), the sputum is blocked by the blocking block in the inclined tube (71), the sputum flows to the discharge tube (5) through the inclined tube (71) which is obliquely arranged, and the flow direction of the second one-way valve (73) is from the air outlet tube (75) to the connecting tube (21).
8. The one-way valve for a expectoration machine according to claim 7, wherein the circumferential wall of the guide tube (72) is rotationally connected with a rotating plate (74), the top wall of the rotating plate (74) is fixedly connected with a tangential tube (741), the tangential tube (741) is communicated with the space of the bottom wall of the rotating plate (74), the tangential tube (741) is tangentially arranged with the rotating plate (74) and is coaxially and fixedly connected with a rotating shaft (742), the outer circumferential wall of the rotating shaft (742) is fixedly connected with a cutting knife (743) in an annular array, one end of the inclined hole (71) is coaxially and rotationally connected with a rotating plate (744), and when negative pressure suction is carried out, air drives the rotating plate (74) to rotate through the tangential tube (741) so as to drive the cutting knife (743) to cut sputum.

Description

One-way valve for expectoration machine Technical Field The invention belongs to the technical field of devices for expectoration machines, and particularly relates to a one-way valve for an expectoration machine. Background In clinical medicine, especially for patients with serious illness, anesthesia or more secretion of respiratory tract, timely and effectively clearing deep sputum of the airway is an important measure for maintaining the respiratory tract unobstructed, preventing pulmonary infection and guaranteeing oxygenation, and the expectoration machine is a key device for realizing the function. The traditional expectoration machine and the pipeline system thereof are commonly used for carrying out positive-negative pressure switching by adopting a single pipeline in long-term use, namely, the same pipeline is used for conveying positive pressure gas and sucking negative pressure gas, bacteria accumulation in a breathing circuit is easy to cause, the risk of cross infection is increased, condensed water and sputum produced by cold of the breathing gas are easy to mix in the pipeline, moisture in a humidifier can be brought into a patient airway when positive pressure is fed, the treatment effect is influenced, the existing expectoration pipeline is extremely easy to be blocked, suction interruption is caused, medical staff is required to repeatedly flush or replace the pipeline, the treatment continuity is influenced, the pain and the cross infection chance of a patient are also increased, the condensed water produced by cold of breathing gas and the sucked sputum are extremely easy to mix in the pipeline to become a warm bed for bacteria growth, and in the negative pressure sucking operation, if the tail end of the expectoration pipeline is tightly attached to the patient airway wall, the traditional equipment can not sense, high negative pressure can be continuously applied, and the potential risk of damaging the airway exists. Disclosure of Invention Aiming at the situation, the application provides the one-way valve for the sputum-expectoration machine, which uses positive pressure and negative pressure alternately generated by the sputum-expectoration machine as the only driving force, physically isolates the patient's expiration loop from the inspiration loop through the air path structure design in the valve body, solves the cross infection problem caused by single tube sharing in the prior art, drives the tangential tube to impact the rotating plate to rotate at high speed by utilizing negative pressure suction air flow, drives the coaxial cutting knife to dynamically and mechanically break viscous sputum, solves the technical problem that the sputum-expectoration tube is blocked by sputum blocks in the prior art, automatically cuts off the air path when the sputum-expectoration pipeline is blocked by the sputum-expectoration block by utilizing the input plate, solves the technical problem that the airway mucosa of a patient is damaged under the condition of pipeline blocking in the prior art, automatically forms sealing cavity temporary dirt by utilizing the pressure difference between the atmospheric pressure and working negative pressure to drive the movable plate and the blocking plate, automatically opens at the negative pressure suction stage to realize dirt discharge in the positive pressure stage, and solves the technical problem that the cold water and the sucked sputum are mixed in the pipeline in the prior art. In order to solve the technical problems, the one-way valve for the expectoration machine comprises a support, wherein the top wall of the support is fixedly connected with a valve body, a connecting pipe penetrates through the valve body, the connecting pipe is an axial cavity, the side walls of two sides of the valve body are respectively fixedly connected with an input pipe and a first one-way valve, the input pipe and the first one-way valve are respectively communicated with two ends of the connecting pipe, the output end of the first one-way valve is coaxially and fixedly communicated with a heating humidifier, an air inlet channel and an air outlet channel are arranged in the valve body, the air inlet channel is communicated with the output end of the heating humidifier, the air outlet channel is communicated with the circumferential wall of the connecting pipe, the top wall of the valve body is fixedly communicated with an output pipe, the air inlet channel and the air outlet channel are respectively communicated with the output pipe, the bottom wall of the valve body is fixedly communicated with a discharge pipe, the discharge pipe penetrates through the support, and the discharge pipe is communicated with the air outlet channel. Preferably, the air inlet channel comprises a communicating pipe and an air inlet pipe which are arranged in the valve body, one end of the communicating pipe is communicated with the heating humidifier through an air pipe, and two ends