CN219516246U - Mouth-nose airflow thermosensitive sensor - Google Patents

Abstract

The utility model discloses an oral-nasal airflow heat-sensitive sensor which comprises a mask, wherein one side of the mask is provided with an air pipe, one end of the air pipe penetrates through the mask and is fixedly connected with the mask, the inner side of the air pipe is provided with internal threads and is connected with a heat-sensitive mechanism in a threaded manner, and an elastic air bag is wrapped at the opening of the mask. The beneficial effects are that: through face guard and the elasticity gasbag that set up, can be more comfortable when the patient uses polysomnography to the elasticity gasbag laminating is on the face, can not inhale the air around the face when making breathe, makes the steam of exhaling can not receive the interference of external air current, has guaranteed thermosensitive mechanism's monitoring accuracy.

Description

A thermal sensor for mouth and nose airflow

technical field

The utility model relates to the field of measuring the temperature of a part of the body, in particular to a thermosensitive sensor for mouth and nose airflow.

Background technique

In clinical medicine, the sleep data monitoring of patients is recorded by polysomnography, and in the process of monitoring patients with polysomnography, it is necessary to perform data on the patient's breathing airflow during sleep. collect.

According to Chinese Patent Publication No. CN205054181U, the mouth and nose airflow thermal sensor is protected by strengthening the thermal sensor placed in the mouth and nasal cavity, so that it can avoid being damaged by the mist caused by the hot gas, and the thermal sensor is improved. service life.

According to the above-mentioned patent, when the patient is sleeping, although the thermal sensor placed in the patient's body can effectively monitor the data, it cannot solve the foreign body sensation in the body, which will make the patient feel uncomfortable while sleeping and reduce the quality of sleep. .

Aiming at the problems in the related technologies, no effective solution has been proposed yet.

Utility model content

The purpose of this utility model is to provide a thermal sensor for mouth and nose air flow, to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

An oro-nasal airflow thermal sensor, comprising a mask, one side of the mask is provided with a trachea, one end of the trachea runs through the mask and is fixedly connected with the mask, the inner side of the trachea is provided with internal thread and threaded A heat-sensitive mechanism is connected, and an elastic airbag is wrapped at the opening of the mask.

Further, the heat-sensitive mechanism includes a threaded sleeve, a support column and a heat-sensitive sensor, the internal thread of the gas pipe is connected with a threaded sleeve, and a heat-sensitive sensor is arranged in the threaded sleeve, and the outer wall of the heat-sensitive sensor passes through several A support column is fixedly connected with the inner wall of the threaded sleeve.

Further, a thermistor is fixedly connected to one end of the thermal sensor, and a coating layer is sheathed on the outside of the thermistor, and the coating layer is sleeved on the outside of the thermal sensor.

Further, a sealing ring is embedded at one end of the thermal sensor close to the thermistor, and the sealing ring is located at the connection between the thermal sensor and the cladding layer.

Further, the other end of the thermal sensor is embedded with a wire, and one end of the wire is connected to the pin of the thermistor.

Compared with the prior art, the utility model has the following beneficial effects:

(1) Through the mask and elastic airbag, the patient can be more comfortable when using the polysomnography instrument, and the elastic airbag is attached to the face, so that the air around the face will not be inhaled when breathing, The exhaled hot air will not be disturbed by the external airflow, ensuring the monitoring accuracy of the thermal mechanism, and the external thermal mechanism can prevent the patient from feeling foreign body in the body during sleep, thereby avoiding affecting the patient's sleep quality, and installing the heat-sensitive mechanism in the trachea allows the heat-sensitive mechanism to be cleaned and replaced later.

(2) The installed threaded sleeve can facilitate the installation and replacement of the thermal sensor, and the thermal resistor on one side of the thermal sensor can detect the hot air exhaled by the patient during sleep, and the set coating layer, which can ensure that the mist generated by the exhaled hot air is in direct contact with the thermistor, which will damage the thermistor and cause inaccurate monitoring data.

(3) The environment where the thermistor is located can be further sealed by the set sealing ring, so that the protective performance of the coating layer on the thermistor is better, and the set wire can make the thermistor because of The data of changes in the patient's respiration is transmitted back, and the wire is placed in the trachea, so that the trachea can protect the wire and prevent the wire from being damaged during use.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only the present invention For some embodiments of the present invention, those skilled in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is a schematic structural view of a thermal sensor for mouth and nose airflow according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the internal structure of a thermal sensor for mouth and nose airflow according to an embodiment of the present invention;

Fig. 3 is a structural schematic diagram of a thermal mechanism in a thermal sensor for mouth and nose airflow according to an embodiment of the present invention.

Reference signs:

1. Mask; 2. Trachea; 3. Thermal mechanism; 4. Elastic airbag; 5. Thread sleeve; 6. Support column; 7. Thermal sensor; 8. Thermistor; 9. Covering layer; 10. Sealing circle; 11, wire.

Detailed ways

Below, in conjunction with accompanying drawing and specific embodiment, the invention is further described:

Embodiment one:

Please refer to Fig. 1-3, a kind of oronasal airflow thermosensitive sensor according to the embodiment of the present utility model, comprises mask 1, and one side of described mask 1 is provided with trachea 2, and one end of described trachea 2 runs through described mask 1 And it is fixedly connected with the mask 1 , the inner side of the air pipe 2 is provided with an internal thread and a heat-sensitive mechanism 3 is threaded, and the opening of the mask 1 is wrapped with an elastic airbag 4 .

Through the above scheme of the present utility model, the mask 1 and the elastic airbag 4 provided can make the patient more comfortable when using the polysomnography instrument, and the elastic airbag 4 is attached to the face, so that the breathing will not The air around the face is inhaled, so that the exhaled hot air will not be disturbed by the external air flow, which ensures the monitoring accuracy of the thermal mechanism 3, and the external thermal mechanism 3 can prevent the patient from having foreign objects in the body during sleep Sensation, so as to avoid affecting the sleep quality of the patient, and installing the heat-sensitive mechanism 3 in the trachea 2, the heat-sensitive mechanism 3 can be cleaned and replaced subsequently.

Embodiment two:

2-3, the thermal mechanism 3 includes a threaded sleeve 5, a support column 6 and a thermal sensor 7, the internal thread of the gas pipe 2 is connected with a threaded sleeve 5, and a thermal sensor is arranged in the threaded sleeve 5. Sensor 7, the outer wall of the thermal sensor 7 is fixedly connected with the inner wall of the threaded sleeve 5 through several support columns 6, and one end of the thermal sensor 7 is fixedly connected with a thermistor 8, and the thermistor 8 A cladding layer 9 is sheathed on the outside of the thermal sensor 7 , and the cladding layer 9 is sheathed on the outside of the thermal sensor 7 .

Through the above scheme of the present utility model, the installed threaded sleeve 5 can facilitate the installation and replacement of the thermal sensor 7, and the thermistor 8 on one side of the thermal sensor 7 can be used to treat the hot air exhaled by the patient during sleep. The detection is carried out, and the cladding layer 9 is provided to ensure that the mist generated by the exhaled hot air directly contacts the thermistor 8 so that the thermistor 8 is damaged and the monitoring data is inaccurate.

Embodiment three:

Please refer to Fig. 2-3, the end of the thermal sensor 7 close to the thermistor 8 is embedded with a sealing ring 10, and the sealing ring 10 is located at the connection between the thermal sensor 7 and the cladding layer 9 , the other end of the thermal sensor 7 is embedded with a wire 11 , and one end of the wire 11 is connected to the pin of the thermistor 8 .

Through the above scheme of the present utility model, the sealing ring 10 provided can further make the environment where the thermistor 8 is located better in sealing performance, so that the protective performance of the coating layer 9 on the thermistor 8 is better, and the set The wire 11 can transmit back the data that the thermistor 8 changes due to the patient's respiration, and the wire 11 is arranged in the trachea 2, so that the trachea 2 can protect the wire 11 and prevent the wire 11 from being damaged during use.

In order to facilitate the understanding of the above-mentioned technical solution of the utility model, the working principle or operation mode of the utility model in the actual process will be described in detail below.

In actual application, the mask 1 is worn on the face, and then the elastic airbag 4 fits the face to prevent the air around the face from entering the mask 1. When the patient breathes, the hot air passes through the nasal cavity, and then contacts with the thermal sensor 7 Contact, the thermistor 8 will increase the resistance due to the increase of temperature, so that under the condition of constant voltage, the current will decrease accordingly, so that the current through the wire 11 will weaken, so that the polysomnography instrument can collect sleep data , the external heat-sensitive mechanism 3 will not disturb the normal sleep of the patient when monitoring the data of the patient.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (4)

1. a kind of mouth-nasal airflow thermosensitive sensor, it is characterized in that, comprise face shield (1), a side of described face shield (1) is provided with trachea (2), and one end of described trachea (2) runs through described face shield ( 1) and is fixedly connected with the mask (1), the inner side of the trachea (2) is provided with an internal thread and is threadedly connected with a heat-sensitive mechanism (3), and the opening of the mask (1) is wrapped with an elastic airbag (4 ), the heat-sensitive mechanism (3) includes a threaded sleeve (5), a support column (6) and a heat-sensitive sensor (7), and the internal thread of the gas pipe (2) is connected with a threaded sleeve (5), and the threaded A thermal sensor (7) is arranged inside the sleeve (5), and the outer wall of the thermal sensor (7) is fixedly connected with the inner wall of the threaded sleeve (5) through several support columns (6). 2. a kind of mouth and nose airflow thermal sensor according to claim 1, is characterized in that, one end of described thermal sensor (7) is fixedly connected with thermistor (8), and described thermistor (8) A cladding layer (9) is sleeved on the outside of the thermal sensor (7). 3. a kind of mouth and nose airflow thermosensitive sensor according to claim 2, is characterized in that, described thermosensitive sensor (7) is embedded with sealing ring (10) near one end of described thermistor (8), The sealing ring (10) is located at the junction of the thermal sensor (7) and the cladding layer (9). 4. a kind of mouth and nose airflow thermal sensor according to claim 3, is characterized in that, the other end of described thermal sensor (7) is embedded with lead (11), and one end of described lead (11) is connected with The pin connection of the thermistor (8).