JPH024685Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a condensed water trap for a medical concentrated oxygen generator that removes condensed water generated in a piping system that supplies oxygen to a patient during operation of a medical concentrated oxygen generator.

In the above-mentioned conventional oxygen generator, as a means for removing moisture from the generated oxygen, a structure is adopted in which moisture is condensed in a heat exchanger and flows out as water droplets to an evaporation pad, etc., but such a moisture removal method is not possible. However, in the worst case scenario, water may accumulate in the piping system leading to the patient, cutting off the oxygen supply, and the water may enter the patient's respiratory tract. There was a possibility that the patient would end up in a dangerous situation, such as getting trapped and choking.

This invention was developed as a result of consideration in view of the above-mentioned conventional circumstances.
An air supply pipe is connected in the middle of the piping that supplies oxygen generated from the oxygen generator to the patient side, an air supply capillary is connected inside the air supply pipe, its outer end is connected to the entrance and exit of the air supply pipe, and the inner end is connected to the air supply pipe. By configuring it to be isolated from the inner peripheral surface of the trachea and fixed in a space, it is possible to reliably remove condensed water from the air pipe in the middle of the pipe that supplies oxygen to the patient. The purpose is to prevent oxygen from being cut off by moisture in the piping system and to ensure oxygen supply to the patient.

The present invention will be described in detail below based on illustrated embodiments.

Figure 1 shows the oxygen generated from the oxygen generator 1.
This figure shows an oxygen supply system that supplies oxygen from the face mask 3 to the patient side through the piping 2, and the condensed water trap 4 of the present invention is used by being connected in the middle of the piping 2.

That is, as shown in FIGS. 2 to 4, the condensed water trap 4 has threaded portions 5a, 5a carved on the outer periphery at both ends of a cylindrical air supply pipe 5 having an appropriate length and diameter. The joints 7 and 7' are coaxially fixed by screwing the screw caps 6 and 6' onto the pipes, respectively, and one of the joints 7 and the oxygen generator 1 are connected to a pipe 2a made of vinyl or the like. connected,
By connecting the other joint 7' and the face mask 3 with a pipe 2b made of vinyl or the like, the air supply pipe 5 is airtightly connected to the middle of the pipe 2, and the oxygen generated from the oxygen generator 1 is connected to the air pipe 5. is supplied from the face mask 3 to the patient side through the piping 2 and the air pipe 5.

Inside the air tube 5, air tubes 8, 8' are arranged concentrically at both ends thereof, and one end 8a, 8'a of the air tube is formed by the joints 7, 7'. The other ends 8b and 8'b are separated from the inner circumferential surface 5d of the air supply pipe 5 so that they float and are fixed in the space. After air is supplied from the air supply pipe 5 to the air supply pipe 5 through one of the air supply capillary tubes 8, air is supplied from the air supply pipe 5 to the above-mentioned outlet 5c through the other air supply capillary tube 8'. When the oxygen passes through the tube, moisture condenses and adheres to the inner circumferential surface 5d, so that the moisture is removed in the air tube 5, and the moisture is removed from the other air tube 8'. The configuration is such that only oxygen is supplied to the patient through the pipe 2.

Here, the air supply capillaries 8 and 8 are arranged so that an annular space a is formed between the inner circumferential surface 5d of the air supply pipe 5 and the outer circumferential surfaces 8c and 8'c of the air supply capillaries 8 and 8'. , 8' are pipe materials having an outer diameter smaller than the inner diameter of the air supply pipe 5 by the amount of space.

As a more specific example, one end 8a, 8'a of each of the illustrated air supply capillaries 8, 8' has a joint 7, 7'.
The threaded portion 8d corresponds to the threaded hole 9 (see Fig. 3).
are provided, and the other end 8b of each air supply thin tube 8, 8'
A guide 10 for a spacer having an outer shape different from the inner shape of the air supply pipe 5 is fitted on the outer periphery near 8'b, and the two air supply thin tubes 8, 8' are connected to the threaded portion 8d and the screw hole 9. They are fixed to the inlet and outlet sides of the air pipe 5 by relative screwing.

In this case, the guide 10 is interposed between the outer peripheral surface of each air supply capillary tube 8, 8' and the inner circumferential surface of the air supply tube 5, and the guide 10 is interposed between the outer peripheral surface of each air supply tube 8, 8'
Since the other ends 8b, 8'b are supported, each air supply capillary 8, 8' is connected from one end 8a, 8'a to the other end 8'a.
b, 8'b, and is held concentrically with the air pipe 5 without inadvertently shifting.

In the illustrated example, the air pipe 5 is formed in a cylindrical shape, so in this case, the guide 10 has the following features:
If a guide 10 having an arbitrary polygonal shape such as a quadrangle, a pentagon, or a hexagon is used, or if the air pipe 5 is made into a polygonal cylindrical shape, the guide 10 should have a circular outer shape. As a result, the air pipe 5
A ventilation space a' is also formed between the inner circumferential surface 5d of the guide 10 and the guide 10.

Further, a drain port 1 is provided at a suitable location on the peripheral wall of the air pipe 5.
1, and the drain port 11 is usually closed with a seal plug 1 made of rubber or the like.
It is preferable that the air pipe 5 is formed so as to be airtightly closed.If such a drain port 11 is provided, moisture accumulated in the air pipe 5 can be removed from the pipe connected to the pipe 2. It can be done conveniently in the same condition.

To use the device having the above configuration, it is connected in an airtight manner to the middle of the pipe 2 that supplies oxygen generated from the oxygen generator 1 to the patient side, as shown in FIG.

In this state, when the on-off valve 13 shown in FIG. During this process, when moisture condenses, the moisture adheres to the inner circumferential surface 5d of the air pipe 5. At this time, moisture also adheres to the inner peripheral surface of one of the air supply tubes 8, but the other end 8b, that is, the inner end, of the air supply tube 8 is separated from the inner circumference 5d of the air supply tube 5, and there is no space. Since it is floating, the attached moisture flows from the inner end opening to the air pipe 5.
The water drops onto the inner wall of the air pipe 5, and moisture is removed and retained within the air pipe 5.

The oxygen that has passed through the air supply pipe 5 is supplied from the pipe 2b to the face mask 3 through the air supply capillary 8' fixed on the outlet 5c side, but the other end 8'b of the air supply capillary 8' is connected to the air supply pipe. Since the oxygen is floated and fixed in the space inside the air supply tube 8', there is no possibility that moisture will be supplied to the air supply tube 8', and only oxygen from which moisture has been removed will flow through the air supply tube 8', the piping 2b, and the face. It is supplied to the patient side through the mask 3.

As explained above, the condensed water trap for a concentrated oxygen generator according to the present invention has an air supply pipe interposed in the middle of the piping for supplying oxygen generated from the oxygen generator to the patient side. A pair of air supply capillaries facing each other with a relative interval in the axial direction are arranged and fixed on the inlet side and the outlet side, and both ends of these air supply capillaries are in communication with the interior of the piping and the air supply pipe. In addition, a space is formed between the outer circumferential surface of each of the air supply thin tubes and the inner circumferential surface of the air supply tube.

According to the condensed water trap for a concentrated oxygen generator of the present invention, which is characterized by such a configuration, even if condensed water is generated when oxygen is supplied from the oxygen generator to the patient side through the piping, the air supply during the piping is removed. Condensed water is removed by a pair of simple and clever air supply tubes within the tube, allowing only oxygen to be supplied.

Therefore, troubles caused by condensed water do not occur, and safe oxygen supply can be achieved.

Moreover, the trap can be constructed at low cost by using a small number of parts, mainly consisting of the air supply pipe and the air supply capillary.

[Brief explanation of the drawing]

Fig. 1 is an oxygen supply system diagram showing the usage status of the condensed water trap for a concentrated oxygen generator according to the present invention, Fig. 2 is a longitudinal side view of the trap, and Fig. 3 is an enlarged longitudinal side view of a part of the trap. 4 is a cross-sectional view taken along the - line in FIG. 3. 1... Oxygen generator, 2... Piping, 4... Condensed water trap, 5... Air pipe, 5b... Inlet, 5c...
...Exit, 5d...Inner peripheral surface of air pipe, 8, 8'...
Air supply thin tube, 8a, 8'a... one end, 8b, 8'b...
...Other end, 10...Guide, a, a'...Space.

Claims (1)

[Scope of claim for utility model registration] (1) An air pipe is interposed in the middle of the piping for supplying oxygen generated from an oxygen generator to the patient, and the inlet and outlet sides of the air pipe are , a pair of air supply capillaries facing each other with a relative interval in the axial direction are arranged and fixed, both ends of these air supply capillaries communicate with the interior of the piping and the air supply pipe, and each of the air supply capillaries is arranged and fixed. A condensed water trap for a concentrated oxygen generator, characterized in that a space is formed between the outer peripheral surface of the thin tube and the inner peripheral surface of the air supply pipe. (2) For the concentrated oxygen generator according to claim 1 of the utility model registration claim, in which a space is formed by interposing a spacer guide between the outer circumferential surface of each air tube and the inner circumferential surface of the air tube. Condensate trap.