CN217246010U - Simple protection device of flow sensor of breathing machine - Google Patents

Abstract

The utility model relates to the field of medical equipment, in particular to a simple protection device of a flow sensor of a breathing machine, which comprises a breathing machine air inlet pipeline, a connecting pipe orifice, a spiral connecting port and sputum filter paper, wherein the breathing machine air inlet pipeline is arranged at the upper end of the spiral connecting port, the connecting pipe orifice is arranged at the lower end of the spiral connecting port, and the sputum filter paper is arranged in the connecting pipe orifice; the air inlet pipeline of the respirator is connected with the air inlet end of the respirator, and the connecting pipe orifice is connected with the trachea cannula or the closed sputum suction pipe. The utility model is suitable for patients with serious respiratory diseases and excessive sputum needing mechanical ventilation; the sputum filter paper does not influence ventilation, does not increase airway resistance, and can play a role in filtering sputum, protect the flow sensor from being polluted and attached by the sputum, and prolong the service life of the flow sensor; secondly, the sputum filter paper changes color after contacting sputum, so that the sputum filter paper is convenient to observe, reminds a patient of needing to move the intra-airway suction, and replaces the sputum filter paper; the spiral connector is convenient for replacing sputum filter paper.

Description

A simple protection device for ventilator flow sensor

technical field

The utility model relates to the field of medical equipment, in particular to a simple protection device for a ventilator flow sensor.

Background technique

Ventilator flow sensors are widely used in mechanically ventilated patients. The main purpose is to measure the tidal volume of exhaled air, and compare it with the tidal volume of inhaled air to determine the air connection of the ventilator, the state of the equipment, and the physiological state of the patient.

Different flow sensors can be divided into end flow trigger mode and proximal flow trigger mode according to different placement positions. At present, most of the ventilators on the market use two methods: exhalation end detection flow detection and proximal flow triggering. The sensor can be installed between the Y port of the breathing circuit and the patient's tracheal intubation. In the proximal trigger mode, the effect of pipeline leakage is small, the sensitivity is improved, and the suction flow of the patient can be directly measured, but it is easily affected by the accumulation of water and secretions in the pipeline.

There are 4 main types of sensors used in flow trigger mode. Namely: differential pressure flow sensor, hot wire flow sensor, pressure strain flow sensor, ultrasonic flow sensor. Combined with the brands of ventilators commonly used in clinical practice, the hot wire flow sensor is the most widely used. Because of its fine built-in guide wire, the hot wire is often damaged and discarded due to the contamination or adhesion of the patient's respiratory secretions and corrosion of the hot wire, shortening its service life and affecting Accuracy of ventilator monitoring.

Utility model content

The purpose of the present utility model is to provide a simple protection device for a ventilator flow sensor, so as to solve the problems of being easily contaminated and attached to lead to damage and shortening of life, which are proposed in the above-mentioned background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a simple protection device for a ventilator flow sensor, comprising a ventilator air inlet pipeline 1, a connecting nozzle 2, a spiral connection port 3 and a sputum filter paper 4, the The ventilator air inlet pipeline 1 is arranged on the upper end of the spiral connection port 3, the connection nozzle 2 is arranged on the lower end of the spiral connection port 3, and the phlegm filter paper 4 is arranged in the connection nozzle 2; The ventilator intake pipeline 1 is connected to the ventilator intake end, and the connecting nozzle 2 is connected to a tracheal intubation tube or a closed sputum suction tube.

The screw connection port 3 includes an upper screw connection port 31 and a lower screw connection port 32. The outer wall of the upper screw connection port 31 is provided with an outer thread 311, and the inner wall of the lower screw connection port 32 is provided with an inner thread 321. The thread 311 is matched with the inner thread 321 , and the upper screw connection port 31 and the lower screw connection port 32 are connected with the outer thread 311 through the inner thread 321 .

The lower screw connection port 32 is provided with a single step table 6 and a filter drain table 5 , the single step table 6 is specifically located below the inner thread 321 , and the inner wall thickness of the single step table 6 is greater than the inner wall of the inner thread 321 . thickness, the connection of the single terrace 6 and the inner thread 321 forms a support surface; the filter drain 5 is arranged on the support surface formed by the single terrace 6 and the inner thread 321; the filter drain The stage 5 has a sheet-like structure with a plurality of through holes in the middle.

The phlegm filter paper 4 is arranged on the filter drain table 5 .

The connecting nozzle 2 has a transparent tubular structure, and the connecting nozzle 2 is integrally connected with the lower end of the screw connecting port 3 .

The ventilator air intake pipeline 1 has a transparent tubular structure, and the lower end of the ventilator intake pipeline 1 is integrally connected with the upper end of the upper spiral connection port 31 .

The connection nozzle 2 has a transparent tubular structure, and the connection nozzle 2 is integrally connected with the lower end of the lower screw connection port 32 .

Compared with the prior art, the beneficial effects of the present utility model are as follows:

The utility model is suitable for patients with severe respiratory diseases and a large amount of sputum requiring mechanical ventilation; the sputum filter paper does not affect ventilation, does not increase airway resistance, and at the same time can play the role of sputum filtration, and protect the flow sensor from being smeared by sputum. Contamination, adhesion, prolong its service life; secondly, the sputum filter paper changes color after contacting the sputum, which is easy to observe, and reminds the patient to perform airway suction and replace the sputum filter paper; the screw connection port is convenient for replacing the sputum filter paper.

Description of drawings

Fig. 1 is the connection state schematic diagram of the utility model;

Fig. 2 is the schematic diagram of the unconnected state of the present invention;

FIG. 3 is a schematic sectional view of the connection state of the present invention;

Fig. 4 is the sectional schematic diagram of the unconnected state of the present invention;

Fig. 5 is the split schematic diagram of the utility model.

In the figure: 1. Intake pipeline of ventilator; 2. Connection nozzle; 3. Spiral connection port; 31. Upper spiral connection port; 32. Lower spiral connection port; 311, External thread; 321, Internal thread; Liquid filter paper; 5. Filter leakage platform; 6. Single ladder platform.

Detailed ways

In order to clarify the technical problems, technical solutions, implementation process and performance display, the present utility model will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are by way of illustration only. The present invention is not intended to limit the present invention. Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures denote elements that have the same or similar functions. While various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise 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.

In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following detailed description. It will be understood by those skilled in the art that the present disclosure may be practiced without certain specific details. In some instances, methods, means, components and circuits well known to those skilled in the art have not been described in detail so as not to obscure the subject matter of the present disclosure.

As shown in Figures 1 to 5, a simple protection device for a ventilator flow sensor includes a ventilator air intake pipeline 1, a connecting pipe port 2, a spiral connection port 3 and a sputum filter paper 4. The ventilator intake pipe The channel 1 is arranged at the upper end of the spiral connection port 3, the connection nozzle 2 is arranged at the lower end of the spiral connection port 3, and the phlegm filter paper 4 is arranged in the connection nozzle 2; The air pipeline 1 is connected to the air inlet end of the ventilator, and the connecting nozzle 2 is connected to the tracheal intubation tube or the closed sputum suction tube.

The screw connection port 3 includes an upper screw connection port 31 and a lower screw connection port 32. The outer wall of the upper screw connection port 31 is provided with an outer thread 311, and the inner wall of the lower screw connection port 32 is provided with an inner thread 321. The thread 311 is matched with the inner thread 321 , and the upper screw connection port 31 and the lower screw connection port 32 are connected with the outer thread 311 through the inner thread 321 .

The lower screw connection port 32 is provided with a single step table 6 and a filter drain table 5 , the single step table 6 is specifically located below the inner thread 321 , and the inner wall thickness of the single step table 6 is greater than the inner wall of the inner thread 321 . thickness, the connection of the single terrace 6 and the inner thread 321 forms a support surface; the filter drain 5 is arranged on the support surface formed by the single terrace 6 and the inner thread 321; the filter drain The stage 5 has a sheet-like structure with a plurality of through holes in the middle.

The phlegm filter paper 4 is arranged on the filter leakage platform 5, and the phlegm filter paper 4 is made of thin and breathable material, and adopts pH biological monitoring technology.

The connecting nozzle 2 has a transparent tubular structure, and the connecting nozzle 2 is integrally connected with the lower end of the screw connecting port 3 .

The ventilator air intake pipeline 1 has a transparent tubular structure, and the lower end of the ventilator intake pipeline 1 is integrally connected with the upper end of the upper spiral connection port 31 .

The connection nozzle 2 has a transparent tubular structure, and the connection nozzle 2 is integrally connected with the lower end of the lower screw connection port 32 .

When connecting, the ventilator air intake line 1 is connected with the intake end of the ventilator, the connecting nozzle 2 is connected with a tracheal intubation or a closed sputum suction tube, and the spiral connection port 3 is placed in the The phlegm filter paper 4, the replacement method of the phlegm filter paper 4 is: unscrew the spiral connection port, take out the used phlegm filter paper 4 with tweezers, and place the new phlegm filter paper 4 in the place. on the filter drain table 5, and then tighten the screw connection port 3.

The sputum is alkaline, and the sputum filter paper 4 changes color after contacting the sputum, which is easy to be observed, and the patient is reminded to perform airway suction and replace the filter paper according to the degree of discoloration of the sputum.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Under the premise of the spirit and scope, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. A simple protection device for a ventilator flow sensor, characterized in that it comprises a ventilator air intake line (1), a connecting nozzle (2), a spiral connection port (3) and a sputum filter paper (4), so The ventilator air intake pipeline (1) is arranged at the upper end of the spiral connection port (3), the connection pipe mouth (2) is arranged at the lower end of the spiral connection port (3), and the phlegm filter paper (4) It is arranged in the connecting nozzle (2); the ventilator air inlet pipeline (1) is connected to the air inlet end of the ventilator, and the connecting nozzle (2) is connected to a tracheal intubation tube or a closed sputum suction tube. 2. The simple protection device for a ventilator flow sensor according to claim 1, wherein the screw connection port (3) comprises an upper screw connection port (31) and a lower screw connection port (32), and the upper screw connection port (32) The outer wall of the screw connection port (31) is provided with an outer thread (311), the inner wall of the lower screw connection port (32) is provided with an inner thread (321), and the outer thread (311) is matched with the inner thread (321), The upper screw connection port (31) and the lower screw connection port (32) are connected with the outer screw thread (311) through the inner thread (321). 3. The simple protection device of the ventilator flow sensor according to claim 2, wherein the lower screw connection port (32) is provided with a single ladder platform (6) and a filter leakage platform (5). The single terrace (6) is specifically located below the inner thread (321), the thickness of the inner wall of the single terrace (6) is greater than the thickness of the inner wall of the inner thread (321), and the single terrace (6) is connected to the inner wall of the inner thread (321). A support surface is formed at the connection of the thread (321); the filter drain table (5) is arranged on the support surface formed by the single step table (6) and the inner thread (321); the filter drain table (5) It has a sheet-like structure with a plurality of through holes in the middle. 4 . The simple protection device for the ventilator flow sensor according to claim 3 , wherein the sputum filter paper ( 4 ) is arranged on the filter leakage platform ( 5 ). 5 . 5. The simple protection device for the ventilator flow sensor according to claim 1, characterized in that, the connection nozzle (2) is in a transparent tubular structure, and the connection nozzle (2) is connected to the spiral connection port ( 3) The lower end is integrally connected. 6. The simple protection device of the ventilator flow sensor according to claim 2, wherein the ventilator air intake pipeline (1) is in a transparent tubular structure, and the lower end of the ventilator intake pipeline (1) is connected to the The upper ends of the screw connection ports (31) are integrally connected. 7 . The simple protection device for the ventilator flow sensor according to claim 2 , wherein the connecting nozzle ( 2 ) is in a transparent tubular structure, and the connecting nozzle ( 2 ) is connected to the lower screw connection port 7 . (32) The lower end is integrally connected.

Images