Pressure regulating oxygen bottle

A pressure regulating oxygen bottle has a bottle body filled with liquid, a cap mounted on the bottle body, an outer tube mounted in the bottle body, and an inner tube mounted through the cap and protruding in the outer tube. The outer tube has multiple flow holes arranged linearly between two opposite ends of the outer tube. The inner tube is connected to an artificial respiration system and has multiple communicating holes arranged spirally between two opposite ends of the inner tube. By turning the inner tube to allow one of the communicating holes to align with a corresponding one of the flow holes of the outer tube, a hydrostatic pressure formed between a liquid surface of the liquid and the communicating hole is changed. Accordingly, gas pressure inside the artificial respiration system can be adjusted.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an oxygen bottle, especially to a pressure regulating oxygen bottle that is connected to an artificial respiration system and regulates a gas pressure of gas discharging from the oxygen bottle so as to control the gas pressure inside the artificial respiration system.

2. Description of the Prior Art(s)

An artificial respiration system is usually used for assisting preterm infants or newborn infants to breathe. A gas pressure of an airflow flowing in the artificial respiration system is higher than an atmospheric pressure outside the artificial respiration system. The airflow delivers oxygen to the infant via an oxygen mask that covers nose and mouth of the infant or via a nasal cannula. The gas pressure in the artificial respiration system is formed by a resistant force applied to an end of a pipe line of the artificial respiration system.

Conventionally, the end of the pipe line of the artificial respiration system is mounted into a bottle filled with liquid. A difference in height between a liquid surface of the liquid and the end of the pipe line forms a hydrostatic pressure. The hydrostatic pressure hinders the gas of the artificial respiration system from discharging. Thus, the gas pressure inside the artificial respiration system is increased to higher than the atmospheric pressure outside the artificial respiration system.

An air pressure gauge may be connected to the artificial respiration system to monitor the gas pressure inside the artificial respiration system. Otherwise, multiple marks marking depths in the bottle may be formed on a sidewall of the bottle. Thus, by observing depths of the end of the pipe line of the artificial respiration system that protrudes in the bottle, the gas pressure inside the artificial respiration system can be calculated.

However, since it is hard to control the depths of the end of the pipe line of the artificial respiration system in the bottle, the gas pressure of the artificial respiration system cannot be adjusted quickly and precisely according to user's need. Moreover, the bottle cannot hold the end of the pipe line at specific depths. Therefore, adjusting the depth of the end of the pipe line to form a stable gas pressure in the artificial respiration system is inconvenient and troublesome to the users.

To overcome the shortcomings, the present invention provides a pressure regulating oxygen bottle to mitigate or obviate the aforementioned problems.

SUMMARY OF THE INVENTION

The main objective of the present invention is to provide a pressure regulating oxygen bottle. The pressure regulating oxygen bottle has a bottle body, a cap mounted on the bottle body, an outer tube mounted in the bottle body, and an inner tube mounted through the cap and protruding in the outer tube. The bottle body is filled with liquid. The outer tube has multiple flow holes arranged linearly between two opposite ends of the outer tube. The inner tube is connected to an artificial respiration system and has multiple communicating holes arranged spirally between two opposite ends of the inner tube.

By turning the inner tube to allow one of the communicating holes to align with a corresponding one of the flow holes of the outer tube, a hydrostatic pressure formed between a liquid surface of the liquid and the communicating hole is changed. Accordingly, gas pressure inside the artificial respiration system can be adjusted.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

With reference toFIGS. 1 and 2, a pressure regulating oxygen bottle in accordance with the present invention comprises a bottle body10, a cap20, an outer tube40, and an inner tube30.

With further reference toFIG. 3, the bottle body10has an open end, a closed end, a sidewall, a mount11, a through hole13, a hole plug12, multiple marks14, and a mounting seat15.

The closed end of the bottle body10has an inner end surface. The sidewall of the bottle body10has an outer side surface. The mount11is disposed adjacent to the open end of the bottle body10and is attached to the outer side surface of the side wall of the bottle body10via a connecting wing111. A width of the connecting wing111decreases from the open end of the bottle body10toward the closed end of the bottle body10.

The through hole13of the bottle body10is formed through the sidewall of the bottle body10and communicates with an interior of the bottle body10. The hole plug12of the bottle body10is detachably plugged in the through hole13of the bottle body10to selectively seal the through hole13of the bottle body10, and is connected to the sidewall of the bottle body10via an extending strip121.

The marks14are formed on the outer surface of the bottle body10, are arranged linearly between the open end of the bottle body10and the closed end of the bottle body10, and are separated by a same distance. The mounting seat15is formed on the inner end surface of the closed end of the bottle body10. Specifically, the mounting seat15is an annular protrusion.

When setting up an artificial respiration system, the mount11is used for hanging the pressure regulating oxygen bottle on a specific place. Gas or excessive liquid inside the bottle body10can be discharged from the through hole13of the bottle body10. Moreover, a user can see an amount of the liquid inside the bottle body10through the marks14.

The cap20is mounted on the open end of the bottle body10and has an open end, an end panel201, an outer side surface, an indication portion21, a connection portion22, multiple engaging protrusions221, a through hole23, and a hole plug24.

The open end of the cap20is mounted on the open end of the bottle body10. The end panel201is formed opposite to the open end of the cap20and has an outer end surface, an inner end surface, and a mounting hole202.

The mounting hole202is formed through the end panel201and is disposed at a center of the end panel201.

The indication portion21is formed on the outer end surface of the end panel201of the cap20. In the preferred embodiment, the indication portion21has two stops213, multiple positioning holes211, and multiple labels212. The stops213are separately formed on the outer end surface of the end panel201. The positioning holes211are formed on the outer end surface of the end panel201, are arranged in an arc between the stops213, and are separated by a same distance. The labels212are formed on the outer end surface of the end panel201and respectively correspond in position to the positioning holes211.

The connection portion22is tubular, is formed on the inner end surface of the end panel201, is mounted around the mounting hole202of the end panel201, protrudes toward the open end of the cap20, and is mounted between the outer tube40and the inner tube30. The connection portion22has an inner surface and an outer surface. The engaging protrusions221are separately formed on and arranged around the inner surface of the connection portion22.

The through hole23of the cap20is formed through the cap20and communicates with an interior of the cap20. The hole plug24of the cap20is detachably plugged in the through hole23of the cap20to selectively seal the through hole23of the cap20, and is connected to the outer side surface of the cap20via an extending strip241.

The outer tube40is mounted in the bottle body10and has a sidewall, a closed end, an open end41, multiple flow holes42, and a covering43.

The sidewall of the outer tube40has an inner surface. The closed end of the outer tube40is mounted in the mounting seat15of the bottle body10. The open end41of the outer tube40is attached to the end panel201of the cap20and is mounted around the outer surface of the connection portion22of the cap20. A diameter of the open end41of the outer tube40is larger than a diameter of the closed end of the outer tube40.

The flow holes42are separately formed through the sidewall of the outer tube40, are arranged linearly between the closed end of the outer tube40and the open end41of the outer tube40, and are separated by a same distance.

The covering43is tubular, is attached to the inner surface of the sidewall of the outer tube40, is disposed adjacent to the closed end of the outer tube40, and has multiple intermediate holes431. The intermediate holes431are separately formed through the covering43, are linearly arranged, are separated by a same distance, and respectively align with the flow holes42of the outer tube40. In the preferred embodiment, the covering43is a silicone layer adhered to the inner surface of the outer tube40.

The inner tube30is rotatably mounted through the mounting hole202of the end panel201of the cap20and the connection portion22of the cap20, is connected to the cap20, is rotatably mounted in the outer tube40, and abuts the covering43. The inner tube30has a sidewall, a closed end, an open end, a connecting pipe31, an adjusting portion32, an engaging groove35, an indicator33, and multiple communicating holes34.

The sidewall of the inner tube30has an outer surface. The closed end of the inner tube30protrudes in and abuts the covering43of the outer tube40. The open end of the inner tube30protrudes out from the cap20and is tapered. The connecting pipe31is mounted on the open end of the inner tube30. The adjusting portion32is formed on the outer surface of the sidewall of the inner tube30and around the open end of the inner tube30, and is tapered. The adjusting portion32has a lower edge. The engaging groove35is formed in and around the outer surface of the sidewall of the inner tube30, is disposed adjacent to the open end of the inner tube30, and engages with the engaging protrusions221of the cap20. Specifically, the engaging groove35is formed in and around the lower edge of the adjusting portion32of the inner tube30.

The indicator33is formed on and protrudes from the adjusting portion32and has a bottom and a positioning protrusion331. The bottom of the indicator33faces the indication portion21of the cap20. The positioning protrusion331is formed on the bottom of the indicator33and selectively engages in one of the positioning holes211of the indication portion21of the cap20.

The communicating holes34are separately formed through the sidewall of the inner tube30, are arranged spirally between the closed end of the inner tube30and the open end of the inner tube30, and are separated by a same distance. Each communicating hole34selectively aligns with a corresponding one of the intermediate holes431of the covering43of the outer tube40and a corresponding one of the flow holes42of the outer tube40.

When the inner tube30is turned, the indicator33corresponds in position to one of the labels212of the indication portion21. A turning range of the inner tube30is limited between the stops213of the indication portion21. When the positioning protrusion331of the indicator33of the inner tube30engages in one of the positioning holes211of the indication portion21of the cap20, one of the communicating holes34of the inner tube30aligns with the corresponding intermediate hole431of the covering43and the corresponding flow hole42of the outer tube40.

As shown inFIGS. 2 and 3, in the preferred embodiment, the indication portion21of the cap20has ten positioning holes211and ten labels212. The ten positioning holes211are formed on the outer end surface of the end panel201of the cap20and are arranged in an arc between the stops213. The labels212respectively label the positioning holes211with Arabic numeral 1 to 10. The outer tube40has ten flow holes42arranged linearly between the closed end41of the outer tube40and the open end of the outer tube40and separated by the same distance. Accordingly, the covering43of the outer tube40also has ten intermediate holes431linearly arranged and separated by the same distance. The inner tube30has ten communicating holes34arranged spirally between the closed end of the inner tube30and the open end of the inner tube30and separated by the same distance.

With further reference toFIG. 6, in another preferred embodiment, the connecting pipe31A further has an annular protrusion formed around an outer surface of the connecting pipe31A. The connecting pipe31,31A can be replaced with different types of the connecting pipes31,31A so as to connect with the artificial respiration system having different types of connectors.

With further reference toFIG. 4, when the pressure regulating oxygen bottle of the present invention is in use, the connecting pipe31of the inner tube30is connected to the artificial respiration system, the interior of the bottle body10is filled with liquid, and the liquid does not flow into the outer tube40and the inner tube30. Gas inside the artificial respiration system tends to discharge from the pressure regulating oxygen bottle.

The user holds the adjusting portion32of the inner tube30to turn the inner tube30to allow one of the communicating holes34of the inner tube30to align with the corresponding intermediate hole431of the covering43and the corresponding flow hole42of the outer tube40. A hydrostatic pressure is formed by a height difference between a liquid surface of the liquid and the communicating hole34. The hydrostatic pressure hinders the gas of the artificial respiration system from discharging from the communicating hole34of the inner tube30, the intermediate hole431of the covering43, and the flow hole42of the outer tube40. Accordingly, gas pressure inside the artificial respiration system is increased to higher than an atmospheric pressure outside the artificial respiration system.

The gas from the artificial respiration system forms bubbles to pass through the liquid in the bottle body10and the bubbles burst at the liquid surface of the liquid. Then the gas discharges from the through holes13,23of the bottle body10and the cap20. Moreover, with the covering43filling space formed between the inner tube30and the outer tube40, the gas from the artificial respiration system does not flow into and discharges from the space between the inner tube30and the outer tube40.

As shown inFIG. 4, as the inner tube30is turned to allow the communicating hole34that is disposed adjacent to the closed end of the inner tube30to align with a corresponding one of the intermediate holes431and a corresponding one of the flow holes42, a higher hydrostatic pressure is formed. Accordingly, the gas pressure inside the artificial respiration system is increased.

With further reference toFIG. 5, as the inner tube30is turned to allow the communicating hole34that is disposed adjacent to the open end of the inner tube30to align with a corresponding one of the intermediate holes431and a corresponding one of the flow holes42, a lower hydrostatic pressure is formed. Accordingly, the gas pressure inside the artificial respiration system is lowered.

The pressure regulating oxygen bottle as described has the following advantages. By turning the inner tube30to allow one of the communicating holes34to align with the corresponding intermediate hole431of the covering43and the corresponding flow hole42of the outer tube40, the hydrostatic pressure formed between the liquid surface of the liquid and the communicating hole34can be changed. Accordingly, the gas pressure inside the artificial respiration system can be adjusted easily.