Breathing machine pipeline capable of automatically cleaning condensate water

Abstract

A breathing machine pipeline capable of automatically cleaning condensate water relates to the technical field of breathing machines and comprises a gas transmission inner pipe, a spiral-line-shaped flow guide groove is formed in the inner wall of the gas transmission inner pipe, a plurality of water drawing holes are formed in the groove bottom of the flow guide groove, and a water absorption lining is fixed to the lower side pipe wall of the gas transmission inner pipe. An inner cavity of the water absorption lining is communicated with the water drawing holes, the outer wall of the gas transmission inner pipe is sequentially coated with a condensate water absorption layer and a heat insulation layer from inside to outside, the water absorption lining is located between the condensate water absorption layer and the outer wall of the gas transmission inner pipe, and fiber bundles on the outer side of the water absorption lining and fiber bundles on the inner side of the condensate water absorption layer are woven in a staggered mode. The end part of a fiber bundle on the inner side of the condensed water absorbing layer extends into the inner cavity of the water absorbing bush; a plurality of drainage bases are arranged at the bottom of the heat insulation layer, and condensate water drainage openings communicated with the condensate water absorption layer are formed in the drainage bases. The device provided by the invention can reduce the discharge frequency of condensate water.

Description

Technical Field

[0001] The present invention relates to the technical field of ventilators, and in particular to a technology for automatically cleaning condensed water ventilator pipelines. Background Art

[0002] When a ventilator is in use, condensed water will be generated in the pipeline when the gas output by the ventilator passes through the delivery pipeline.

[0003] At present, the existing ventilator pipelines usually have a water accumulation cup in the middle of the pipeline to collect condensed water. The ventilator set up in this way requires medical staff to frequently tap the ventilator pipeline to make the condensed water in the pipeline flow into the water accumulation cup in the middle, and clean the water accumulation cup regularly, which undoubtedly increases the workload of medical staff; and the condensed water is conducive to bacterial reproduction if it is retained for too long, and there is a risk that the condensed water will flow back into the patient's airway, thereby causing complications such as choking and coughing in the patient; in addition, due to the need to set up the water accumulation cup, the ventilator pipeline forms a V-shape in which the water accumulation cup hangs at the bottom due to its own weight, and the pipelines on both sides are respectively led out obliquely upward on both sides of the water accumulation cup. The entire pipeline system is complex and the dead space volume is large, which is not conducive to the efficient transmission of gas, thereby affecting the overall performance of the ventilator. Summary of the invention

[0004] In view of the defects existing in the above-mentioned prior art, the technical problem to be solved by the present invention is to provide a ventilator pipeline that can automatically clean condensed water and can reduce the frequency of condensed water discharge and effectively prevent condensed water from flowing back into the patient's airway.

[0005] In order to solve the above technical problems, the present invention provides a ventilator pipeline capable of automatically cleaning condensed water, including a gas transmission inner tube, characterized in that: The inner wall of the gas transmission inner tube is provided with a guide groove which is spirally wound around the axis of the tube center, and a plurality of water-drawing holes are provided at the bottom of the guide groove. Each water-drawing hole is located on the lower tube wall of the gas transmission inner tube, and a water-absorbing bushing is fixed on the lower tube wall of the gas transmission inner tube. The inner cavity of the water-absorbing bushing is connected with each water-drawing hole, so that the accumulated water in the guide groove can flow into the inner cavity of the water-absorbing bushing through each water-drawing hole. The outer wall of the gas transmission inner tube is covered with a condensed water absorption layer and a heat insulation layer in sequence from the inside to the outside, the water absorption sleeve is located between the condensed water absorption layer and the outer wall of the gas transmission inner tube, and the outer fiber bundle of the water absorption sleeve is interlaced with the inner fiber bundle of the condensed water absorption layer, so that the end of the inner fiber bundle of the condensed water absorption layer extends into the inner cavity of the water absorption sleeve; A plurality of drainage seats are arranged at the bottom of the heat insulation layer, and a condensation water drainage port communicating with the condensation water absorption layer is opened on the drainage seat.

[0006] Furthermore, the inner wall of the gas transmission inner tube is covered with a hydrophobic coating.

[0007] Furthermore, a detachable separation container is provided on the drain seat, a connecting pipe is fixed on the separation container, the connecting pipe is detachably connected to the condensate drain port of the drain seat, an inner drainage pipe is provided in the separation container, the upper end pipe opening of the inner drainage pipe is connected to the lower end pipe opening of the connecting pipe, the lumen of the inner drainage pipe is connected to the inner cavity of the separation container, a drainage floating ring that can move up and down is sleeved on the inner drainage pipe, a limiting column for limiting the downward movement of the drainage floating ring is provided at the bottom of the inner cavity of the separation container, a plurality of drainage holes are opened on the side wall of the separation container, when the drainage floating ring abuts against the limiting column, the drainage floating ring blocks each drainage hole, and the drainage floating ring can move upward to a position that opens each drainage hole.

[0008] Furthermore, it also includes an external monitoring terminal. A plurality of humidity sensors are embedded in the thermal insulation layer and arranged at intervals along the axial direction of the gas transmission inner tube. The signal output end of each humidity sensor is connected to the data acquisition port of the external monitoring terminal.

[0009] The present invention provides a ventilator pipeline that can automatically clean condensed water. A spiral guide groove is used to intercept condensed water and flow into a water absorption sleeve, which can effectively prevent condensed water from flowing back into the patient's airway. Condensed water can be collected without medical personnel tapping the pipeline, and a condensed water absorption layer is used to temporarily store condensed water, thereby reducing the frequency of condensed water discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a front view cutaway diagram of a ventilator pipeline capable of automatically cleaning condensed water according to an embodiment of the present invention; Figure 2 It is a top left perspective stereoscopic image of a ventilator pipeline capable of automatically cleaning condensed water according to an embodiment of the present invention; Figure 3 yes Figure 1 A magnified view of part A; Figure 4 yes Figure 1 Enlarged view of part B. DETAILED DESCRIPTION

[0011] The following is a further detailed description of an embodiment of the present invention in conjunction with the accompanying drawings, but this embodiment is not intended to limit the present invention. All similar structures and similar variations of the present invention should be included in the protection scope of the present invention. The commas in the present invention all represent the relationship of and.

[0012] like Figure 1-Figure 4As shown, a ventilator pipeline capable of automatically cleaning condensed water provided by an embodiment of the present invention comprises a gas transmission inner tube 1, the inner wall of the gas transmission inner tube 1 is covered with a hydrophobic coating, and a guide groove 2 is provided on the inner wall of the gas transmission inner tube 1 and is wound into a spiral shape around the axis of the tube center, and a plurality of water-drawing holes 3 are provided at the bottom of the guide groove 2, and each water-drawing hole is provided on the lower tube wall of the gas transmission inner tube 1, and a water-absorbing bushing 5 is fixed on the lower tube wall of the gas transmission inner tube 1, and the inner cavity of the water-absorbing bushing 5 is communicated with each water-drawing hole, so that the accumulated water in the guide groove 2 can flow into the inner cavity of the water-absorbing bushing 5 through each water-drawing hole; The outer wall of the gas transmission inner tube 1 is covered with a condensed water absorption layer 6 and a heat insulation layer 16 in sequence from the inside to the outside, and the water absorption sleeve 5 is located between the condensed water absorption layer 6 and the outer wall of the gas transmission inner tube. The outer fiber bundle of the water absorption sleeve 5 (the side facing away from the gas transmission inner tube is the outer side) is interlaced with the inner fiber bundle of the condensed water absorption layer 6, so that the end of the inner fiber bundle of the condensed water absorption layer 6 extends into the inner cavity of the water absorption sleeve 5; A plurality of drain seats 7 are provided at the bottom of the thermal insulation layer 16, and a condensate drain port connected to the condensate absorption layer 6 is provided on the drain seat 7, and a detachable separation container 9 is provided on the drain seat 7, and a connecting pipe 8 is fixed on the separation container 9, and the connecting pipe 8 is detachably connected to the condensate drain port of the drain seat, and a drainage inner pipe 10 is provided in the separation container 9, and the upper end pipe mouth of the drainage inner pipe 10 is connected to the lower end pipe mouth of the connecting pipe 8, and the tube cavity of the drainage inner pipe 10 is connected with the inner cavity of the separation container 9, and a drainage floating ring 11 that can move up and down is sleeved on the drainage inner pipe 10, and a limiting column 15 for limiting the downward movement of the drainage floating ring 11 is provided at the bottom of the inner cavity of the separation container 9, and a plurality of drainage holes 12 are provided on the side wall of the separation container 9, and when the drainage floating ring 11 is against the limiting column, the drainage floating ring 11 blocks each drainage hole 12, and the drainage floating ring 11 can move upward to a position that opens each drainage hole.

[0013] The heat insulating layer 16 is made of medical silica gel material, and the condensed water absorbing layer 6 and the water absorbing sleeve 5 are made of hydrophilic nanofiber material, and the hydrophilic nanofiber material is polymer nanofiber or composite nanofiber.

[0014] The embodiment of the present invention further includes an external monitoring terminal (not shown in the figure), and a plurality of humidity sensors 17 are embedded in the thermal insulation layer 16 and arranged at intervals along the axial direction of the gas transmission inner tube 1, and the signal output end of each humidity sensor 17 is respectively connected to the data acquisition port of the external monitoring terminal.

[0015] The embodiment of the present invention is used for a ventilator circuit, and its working principle is as follows: When in use, the oxygen delivered by the ventilator flows into the patient's airway through the pipeline, and the condensed water formed in the pipeline is guided to the guide groove 2 by the super-hydrophobic coating, and then flows into the inner cavity of the water-absorbing sleeve 5 through the water-drawing hole 3, and then is absorbed by the fiber bundles of the condensed water absorption layer 6 and temporarily stored in the condensed water absorption layer 6. The condensed water absorption layer 6 diffuses and stores in the pores through a large number of tiny pores between its fibers. The water storage capacity of the condensed water absorption layer 6 can reach the amount of condensed water generated by a single use of the ventilator pipeline; When the external monitoring terminal detects through each humidity sensor 17 that the water storage amount in the condensation water absorption layer 6 reaches the set value, the gas transmission inner tube 1 can be removed from the patient, the condensation water absorption layer 6 can be squeezed, and the water stored in the condensation water absorption layer 6 can be discharged using the separation container 9. During the drainage process, the condensation water at the bottom of the inner cavity of the separation container 9 is continuously gathered, and the drainage floating ring 11 floats up under the action of buoyancy. When the condensation water level rises to the drainage hole 12, the condensation water is discharged. The insulation layer can protect the pipeline body from damage and reduce the influence of external air, thereby reducing the generation of condensation water.

Claims

1. A ventilator pipeline capable of automatically cleaning condensed water, comprising a gas transmission inner tube, characterized in that: The inner wall of the gas transmission inner tube is provided with a guide groove which is spirally wound around the axis of the tube center, and a plurality of water-drawing holes are provided at the bottom of the guide groove. Each water-drawing hole is located on the lower tube wall of the gas transmission inner tube, and a water-absorbing bushing is fixed on the lower tube wall of the gas transmission inner tube. The inner cavity of the water-absorbing bushing is connected with each water-drawing hole, so that the accumulated water in the guide groove can flow into the inner cavity of the water-absorbing bushing through each water-drawing hole. The outer wall of the gas transmission inner tube is covered with a condensed water absorption layer and a heat insulation layer in sequence from the inside to the outside, the water absorption sleeve is located between the condensed water absorption layer and the outer wall of the gas transmission inner tube, and the outer fiber bundle of the water absorption sleeve is interlaced with the inner fiber bundle of the condensed water absorption layer, so that the end of the inner fiber bundle of the condensed water absorption layer extends into the inner cavity of the water absorption sleeve; A plurality of drainage seats are arranged at the bottom of the heat insulation layer, and a condensation water drainage port communicating with the condensation water absorption layer is opened on the drainage seat.

2. The ventilator pipeline capable of automatically cleaning condensed water according to claim 1, characterized in that: The inner wall of the gas transmission inner tube is covered with a hydrophobic coating.

3. The ventilator pipeline capable of automatically cleaning condensed water according to claim 1, characterized in that: The drain seat is provided with a detachable separation container, and a connecting pipe is fixed on the separation container. The connecting pipe is detachably connected to the condensate drain port of the drain seat. An inner drainage pipe is provided in the separation container, and the upper end pipe mouth of the inner drainage pipe is connected to the lower end pipe mouth of the connecting pipe. The lumen of the inner drainage pipe is connected with the inner cavity of the separation container. A drainage floating ring that can move up and down is sleeved on the inner drainage pipe. A limiting column for limiting the downward movement of the drainage floating ring is provided at the bottom of the inner cavity of the separation container. A plurality of drainage holes are opened on the side wall of the separation container. When the drainage floating ring abuts against the limiting column, the drainage floating ring blocks each drainage hole, and the drainage floating ring can move upward to a position that opens each drainage hole.

4. The ventilator pipeline capable of automatically cleaning condensed water according to claim 1, characterized in that: It also includes an external monitoring terminal. A plurality of humidity sensors are embedded in the thermal insulation layer and arranged at intervals along the axial direction of the gas transmission inner tube. The signal output end of each humidity sensor is connected to the data acquisition port of the external monitoring terminal.

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