CN115192837A

CN115192837A - Breathing pipeline and heating module integrated into one piece structure

Info

Publication number: CN115192837A
Application number: CN202110382447.XA
Authority: CN
Inventors: 黄朝枝
Original assignee: Vadi Medical Technology Co ltd
Current assignee: Vadi Medical Technology Co ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2022-10-18

Abstract

The invention relates to an integrated molding structure of a breathing pipeline and a heating module, which comprises an inner layer body which is formed by injection molding of a siliceous material, wherein the inner layer body comprises a gas channel, a spiral groove at the periphery of the gas channel and a half joint chamber; winding a heating wire of a heating module on the spiral groove on the periphery of the gas channel, and arranging a joint of the heating module in the half joint chamber; the outer surface layer and the inner pipe layer of the installed heating module are encapsulated into a whole by injection molding.

Description

Breathing pipeline and heating module integrated into one piece structure

Technical Field

The invention belongs to a respirator, and particularly relates to an integrally formed structure of a breathing pipeline and a heating module.

Background

A ventilator (breathing apparatus) is a common medical instrument in emergency rooms and intensive care units of hospitals, and is used to maintain life when patients cannot breathe spontaneously or can breathe spontaneously but cannot reach the oxygen concentration required by human bodies.

The respirator operates by sending air generated by a fan or compressor built in a gas supply (gases supplied means) known as an air pressure source to a humidifier (humidifier) through a conduit (conduit); the humidifier comprises a water container (humidifying chamber) and an electric heating plate (heater plate); the water carrier in the water container is heated by the electric heating plate, so that the vapor evaporated due to heating in the water carrier is taken away by the gas provided by the air pressure source, and then the vapor is delivered to the patient by a breathing pipeline (respiratory component) at the most appropriate breathing temperature and breathing humidity.

Before the water vapor generated by the moisture heating carrier reaches the patient end, the water vapor is easily influenced by the ambient temperature, the airflow size and the airflow temperature, so that the transmission temperature and the water vapor are lost in the breathing pipeline, and further condensation water known as condensation is generated.

To reduce condensation, it is most common to provide a heating wire in the breathing circuit to maintain the temperature. Fisher & Paykel Healthcare Limited, n.zealand, in patent No. I682793, taiwan, china, discloses a medical tube comprising an extruded first elongated member and a second elongated member, the first elongated member being a hollow portion of the medical tube and the second elongated member being a structural support or reinforcement portion of the medical tube. The first long member forms a plurality of hollow bubbles, gaps are arranged between adjacent bubbles, and the second long member is clamped in the gaps adjacent to the bubbles and wraps the heating wire.

The medical tube has a complex structure and high manufacturing cost, and although the heating wire is enclosed in the gap adjacent to the bubble, the heating wire does not block the outside air. Therefore, a part of the heat energy generated by the heating wire is lost from the contact position of the top end and the outside air. In other words, the heat energy generated by the heater wire is not completely supplied to the medical tubing to prevent condensation. In addition, the terminal of the heating wire must be electrically connected with the power connector at the periphery of the medical tube, and the connection position is not integrally encapsulated with the medical tube, so that the situation that the connection position of the heating wire and the power connector is in poor contact due to pulling is unlikely. In addition, the connection position between the medical tube and the power connector is not flat, which causes a dead space for cleaning dead corners.

Disclosure of Invention

In view of the influence of the condensed water in the breathing circuit on the overall function of the respirator and the discomfort caused to the patient, how to provide a breathing circuit with high stability and durability at a lower manufacturing cost for the patient at a parent price should be a topic with great research value.

The technical scheme is as follows: the invention provides an integrated molding structure of a breathing pipeline and a heating module, which comprises an inner layer body which is formed by injection molding of a siliceous material, wherein the inner layer body comprises a gas channel, a spiral groove at the periphery of the gas channel and a half joint cavity;

winding a heating wire of the heating module on the spiral groove on the periphery of the channel, and arranging a joint of the heating module in the half joint chamber;

the outer surface layer and the inner pipe layer of the installed heating module are encapsulated into a whole by injection molding.

In one embodiment of the present invention, the spiral groove on the periphery of the channel is two continuous adjacent peaks (a first peak and a second peak) and a valley.

Furthermore, the wave trough is used for winding and positioning the heating wire, and the two wave crests effectively improve the compressive strength of the breathing pipeline besides the barrier heating wire, so that the gas channel is prevented from being deformed under pressure.

In one embodiment of the present invention, the outer layer is wrapped around the heating wire, so that the heat generated by the heating wire cannot contact with the outside air due to the wrapping of the outer layer, and can only be transferred to the inner layer body, in other words, the heat generated by the heating wire is completely used for preventing condensation.

Further, the outer skin is spaced from the heater wire and forms an insulating cavity.

Drawings

FIG. 1 is a structural view of an inner layer body of the present invention;

FIG. 2 is a schematic view of the combination of the inner body and heating module of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is an exterior plan view of the present invention; and

fig. 5 is an external perspective view of the present invention.

Wherein:

1-inner layer body

11-gas channel

12-spiral groove

121 a-first peak

121 b-second peak

122-trough of wave

13. Half joint chamber

2. Outer surface layer

3. Heating module

31. Heating wire

32. Heating wire joint

The specific implementation mode is as follows:

to facilitate those skilled in the art to understand the technical features, contents and advantages of the present invention and the efficacy achieved thereby, the present invention will be described in detail with reference to the accompanying drawings in the form of embodiments, wherein the drawings are provided for illustration and description, and not necessarily for the actual scale and precise configuration after the implementation of the present invention, and therefore, the scope of the present invention in the actual implementation should not be read and limited by the scale and configuration relationship of the attached drawings.

Referring to fig. 1 to 5, the method for manufacturing the integrally formed structure of the breathing tube and the heating module according to the present invention includes the following steps:

the inner layer body 1 of the breathing pipeline is integrally formed by injecting siliceous materials, and the inner layer body 1 comprises a gas channel 11, a channel peripheral spiral groove 12 and a half-joint chamber 13;

wherein, the inner wall of the pipeline of the gas channel 11 is a smooth surface with low roughness so as to reduce the turbulent flow phenomenon;

the spiral groove 12 on the periphery of the channel is a first peak 121a, a second peak 121b and a trough 122 which are continuously adjacent to each other, the trough 122 is used for winding and positioning the heating wire 31, and the first peak 121a and the second peak 121b can improve the compressive strength of the breathing pipeline besides the barrier heating wire 31, thereby preventing the gas channel from deforming under pressure.

The half-joint chamber 13 is used for placing the heating wire joint 32.

As shown in fig. 2, the heater wire 31 of the heater module 3 is wound around the spiral groove 12 on the outer periphery of the passage, and the joint 32 of the heater module 3 is placed in the half joint chamber 13.

As shown in fig. 4 to 5, the heater module 3 is placed on the inner layer body 1, and the outer layer 2 and the inner layer body 1 are insert molded (insert molding) integrally.

As shown in the cross-sectional view of fig. 3, the heating wire 31 of the heating module 3 is wound and positioned in the spiral groove 12 of the breathing pipeline, the heating wire connector 32 of the heating module 3 is accommodated in the connector chamber 13, the outer surface layer 2 and the inner layer body 1 are integrated by insert molding, and particularly, the outer surface layer 2 is wrapped on the periphery of the heating wire 31, so that the heat energy generated by the heating wire 31 cannot contact with the outside air due to the wrapping separation of the outer surface layer 2, and can only be transferred to the inner layer body 1, and the heat energy generated by the heating wire can be completely used for preventing condensation.

Above-mentioned breathing pipe way is retrencied with heating module integrated into one piece structure, and the effect is showing, and its advantage is as follows:

1. the integrally formed modular elements are adopted, so that the manufacturing process is simplified, the cost is effectively reduced, and the product competitiveness is improved;

2. the heating module is completely packaged without being influenced by environment or human, so that the stability of the function and the durability of the product are ensured;

3. after the trough winding location heater wire of the peripheral spiral slot of passageway, the crest of trough both sides except providing the barrier protection heater wire to effectively promote breathing line's compressive strength, avoid gas passage compressive deformation.

In view of the above, embodiments of the present invention have been described in detail. However, the present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. The integrated structure of the breathing pipeline and the heating module is characterized by comprising a breathing pipeline inner layer body which is formed by injecting siliceous materials, wherein the inner layer body comprises a gas channel, a spiral groove at the periphery of the gas channel and a half joint cavity;

2. The integrated structure of breathing circuit and heating module as claimed in claim 1, wherein the spiral groove on the periphery of the gas channel is a first wave crest and a second wave crest which are continuously adjacent, and a wave trough which is already located between the first wave crest and the second wave crest.

3. The integrated structure of breathing circuit and heating module as claimed in claim 2, wherein the trough is used to wind and position the heating wire, and the first and second peaks are used to protect the heating wire and increase the compressive strength of the breathing circuit.

4. The integrated breathing circuit and heating module structure of claim 1 wherein the outer skin is wrapped around the heater wire.

5. The breathing circuit and heating module integrated structure of claim 4 wherein said outer skin is spaced from said heater wire and forms an insulated cavity.