JP2020124364A - Medical oxygen supply device - Google Patents

Abstract

To provide a medical oxygen supply device that allows a reserve packing to be held surely.SOLUTION: A medical oxygen supply device attached to a mouth ring of a medical oxygen cylinder for supplying medical oxygen to a patient includes: an attaching member 10 having a hole 10a that penetrates through the mouth ring 2 of the cylinder; a pressing member 13 disposed to the attaching member for pressing the mouth ring in one direction; a body 15 disposed facing the pressing member that stores a pressure adjusting mechanism for adjusting the pressure of the medical oxygen; a nozzle 16 disposed to the body and fitted into an opening provided to the mouth ring, to which the medical oxygen is supplied; and a ring-like packing 1 disposed between the opening provided to the mouth ring and the nozzle. The pressing member includes a screw 11 for coming into contact with the mouth ring of the cylinder and pressing it and an operation handle 12, and the operation handle includes a top plate 12a, an attaching part 12b, a hanging part 12c hanging from the peripheral edge of the top plate, and a packing holding part 14 formed between the hanging piece part and the attaching part for holding the packing.SELECTED DRAWING: Figure 3

Description

The present invention relates to a medical oxygen supply apparatus which is attached to a mouthpiece of a medical oxygen cylinder to supply medical oxygen to a patient, and more particularly to a medical oxygen supply apparatus capable of holding a spare packing on an operation handle. is there.

BACKGROUND ART Medical oxygen is supplied to a patient while the medical oxygen cylinder is being erected in a hospital room or while being mounted on a cart to move. The medical oxygen filled in the medical oxygen cylinder is depressurized to a predetermined pressure by the medical oxygen supply device and supplied to the patient via the cannula attached to the medical oxygen supply device.

A general medical oxygen supply device attached to the base of a medical oxygen cylinder is a mounting member for attaching to the base of the medical oxygen cylinder, and decompresses the high-pressure medical oxygen filled in the medical oxygen cylinder. And a casing having an adjusting mechanism for adjusting the flow rate (see Patent Document 1, for example).

The oxygen supply device described in Patent Document 1 supplies medical oxygen in synchronization with the inspiration of a patient. This oxygen supply device is attached to the mouthpiece of the cylinder through a substantially square-shaped attachment member that is integrally provided at the end of the casing, and can be fixed by a set screw. A nozzle that is fitted into the opening of the casing and that receives the supply of high-pressure medical oxygen filled in the cylinder is formed at a position facing the opening formed in the cylinder mouthpiece in the casing. A packing is arranged in the nozzle to prevent leakage of medical oxygen which may occur when the nozzle is fitted into the opening formed in the base to supply medical oxygen.

Then, inside the casing, a decompression unit that decompresses high-pressure medical oxygen, an opening/closing unit that supplies or stops decompressed medical oxygen to the patient, and a control unit that opens/closes the opening/closing unit according to inspiration of the patient, It is arranged. The flow rate of medical oxygen can be set by operating the orifice plate arranged between the decompression section and the opening/closing section.

Japanese Patent No. 6192213

A general medical oxygen supply device typified by the oxygen supply device described in Patent Document 1 is frequently attached to and detached from a medical oxygen cylinder, so that the packing is repeatedly subjected to a force and a force. It is easily consumed. Therefore, it is necessary to always have a spare packing.

The spare packing is preferably provided near the medical oxygen supply device. For this reason, a chain or a string is inserted into a hole formed in the packing, and is tied to a pressure gauge or the like attached to the casing through the chain or the string, so that a spare packing is generally used.

As described above, in the medical oxygen supply device equipped with the spare packing, the spare packing becomes dangling, which makes it difficult to perform the operation when supplying oxygen to the patient, and the chain or string breakage. There is a risk that problems such as the loss of spare packing due to the above may occur.

An object of the present invention is to provide a medical oxygen supply device capable of reliably holding a spare packing.

A typical medical oxygen supply device according to the present invention for solving the above-mentioned problems is a medical device which is attached to a base of a medical oxygen cylinder having an opening for allowing medical oxygen to flow and which supplies medical oxygen to a patient. An oxygen supply device for medical use, wherein a mounting member having a hole for inserting a mouthpiece of a medical oxygen cylinder and a mouthpiece of the medical oxygen cylinder inserted into the hole of the mounting member is pressed in one direction. A pressing member, a main body that is disposed in the mounting member so as to face the pressing member disposed in the mounting member, and that contains a pressure adjusting mechanism that adjusts the pressure of medical oxygen; Nozzle fitted with an opening provided in a mouthpiece of a medical oxygen cylinder to supply medical oxygen, and a ring-shaped packing arranged between the opening provided in the mouthpiece of the medical oxygen cylinder and the nozzle And the pressing member has a pressing body that comes into contact with the mouthpiece of the medical oxygen cylinder and presses it, and an operation handle arranged at one end of the pressing body. Is a top plate part, a pressing body mounting part formed in the center of the top plate part and in which a pressing body is arranged, a hanging part hanging from the peripheral edge of the top plate part to the pressing body side, the hanging piece part and the pressing part. And a packing holding portion formed between the body mounting portion and holding the packing.

In the medical oxygen supply device according to the present invention (hereinafter referred to as “oxygen supply device”), since the packing holding portion is provided between the hanging portion of the operation handle and the pressing body mounting portion, the packing holding portion has a spare packing. Can be held. Therefore, the spare packing does not hang outside the oxygen supply device, so that the operability is not impaired and the spare packing is not lost.

It is an external view explaining the structure of the oxygen supply apparatus which concerns on a present Example. It is sectional drawing explaining the structure of the oxygen supply apparatus which concerns on a present Example. It is a figure explaining the structure of the operating handle which concerns on a present Example. It is a figure explaining the structure of packing.

The oxygen supply device according to the present invention is attached to a base of a medical oxygen cylinder (hereinafter referred to as a “cylinder”), and reduces the medical oxygen supplied from the cylinder to a predetermined pressure and supplies it to a patient. .. This oxygen supply device can prevent oxygen from leaking by fitting the nozzle formed in the main body portion into the opening formed in the mouthpiece of the cylinder via the ring-shaped packing.

In particular, since the packing holding part is provided on the operation handle, by holding the spare parts of the packing, which is a consumable item, in the packing holding part, it is possible to securely hold the spare packing without exposing it to the outside. Is configured. For this reason, it becomes possible to supply medical oxygen to the patient without impairing operability.

Prior to explaining the configuration of the oxygen supply device A according to the present embodiment. The configuration of the packing 1 used in the oxygen supply device A will be described with reference to FIG. The packing 1 shown in the figure has a diameter and a depth of a nozzle 16 formed in a main body portion 15 of an oxygen supply device A, which will be described later, and a base 2 (shown by a chain double-dashed line in FIG. 1) of a cylinder (not shown). It has a preset size corresponding to conditions such as the diameter of the formed opening (not shown).

The packing 1 is made of rubber or the like which has elasticity and is less deteriorated by oxygen. A hole 1a through which the nozzle 16 is inserted is formed at the center of the packing 1. Further, ring-shaped protrusions 1b are formed on both sides in the thickness direction, and plating is applied to the outer peripheral portion.

The packing 1 is attached to the nozzle of the oxygen supply device A through the hole 1a, and when it is attached to the opening formed in the mouthpiece 2 of the cylinder, the protrusions 1b on both sides are flat surfaces on the nozzle side and the opening side. The parts come into contact with each other and are pressed. Therefore, when the medical oxygen filled in the cylinder is supplied to the oxygen supply device, the medical oxygen does not leak from the joint between the opening and the nozzle 16.

Next, the configuration of the oxygen supply device A will be briefly described with reference to FIGS. The oxygen supply device A is attached to the mouthpiece 2 of the cylinder, the medical oxygen filled in the cylinder is supplied through an opening (not shown) formed in the mouthpiece 2, and the supplied medical oxygen is decompressed. It is configured to be delivered to the patient.

The oxygen supply device A is configured to include a mounting member 10 for mounting on the mouthpiece 2 of the cylinder, and a main body 15 integrally configured with the mounting member 10. The mounting member 10 is formed in a substantially square shape, and a hole 10a for inserting the mouthpiece 2 of the cylinder is formed in the center. At a position facing the main body 15 of the mounting member 10, a pressing member 13 including a screw 11 and an operation handle 12 which are pressing bodies for pressing the mouthpiece 2 in one direction when attached to the mouthpiece 2 of the cylinder. It is arranged.

Therefore, by inserting the mouthpiece 2 of the cylinder through the hole 10a of the mounting member 10 and operating the operation handle 12 of the pressing member 13 to press the mouthpiece 2 with the screw 11, the oxygen supply device A is moved to the mouthpiece 2 of the cylinder. It can be attached to. The oxygen supply device A can be removed from the base 2 by operating the operation handle 12 to release the pressing of the base 2 by the screw 11.

When the oxygen supply device A is attached to the body 15 of the cylinder via the attachment member 10, the main body 15 is fitted into the opening formed in the mouth 2, and the valve formed in the mouth 2 is opened. A nozzle 16 is provided, which is sometimes supplied with medical oxygen. The nozzle 16 has a protrusion 16a that fits into the opening formed in the mouthpiece 2 of the cylinder, and the ring-shaped packing 1 is detachably attached to the protrusion 16a.

The main body 15 accommodates a decompression mechanism that decompresses high-pressure medical oxygen supplied from a cylinder to a pressure for applying to a patient. The structure of the decompression mechanism is not limited, and it is possible to use the decompression mechanism used in a normal oxygen supply device as it is. Further, it is natural that the main body 15 may house a flow rate adjusting mechanism in addition to the pressure reducing mechanism.

In the present embodiment, the decompression mechanism has a diaphragm 18a and a kelep disposed in a passage 18 formed between the nozzle 16 to which medical oxygen is supplied and the connection port 17 of the cannula for supplying medical oxygen to the patient. 18b. Further, a pressure gauge 18c is arranged in the passage 18, and the pressure gauge 18c is configured so that the pressure of the medical oxygen filled in the cylinder can be confirmed.

Next, the configuration of the packing holding portion 14 that holds the packing 1 will be specifically described. The packing holding portion 14 is formed on the operation handle 12 that constitutes the pressing member 13. The operation handle 12 is formed in a disk shape having a thickness, and the screw 11 serving as a pressing body is arranged at the center of the surface on one side.

The operation handle 12 includes a top plate 12a serving as a top plate portion, a boss-shaped mounting portion 12b formed in a central portion of the top plate 12a serving as a pressing body mounting portion for mounting the screw 11, and a peripheral edge of the top plate 12a. It is configured to have a hanging piece 12c that is a hanging portion that hangs in the same direction as the screw 11 and a packing holding portion 14 formed between the mounting portion 12b and the hanging piece 12c.

The dimension between the outer peripheral surface of the mounting portion 12b formed on the operation handle 12 and the inner peripheral surface of the hanging piece 12c is slightly larger than the outer diameter of the packing 1. Further, a plurality of ribs 12d are radially formed by connecting the mounting portion 12b and the hanging piece 12c. The packing holding portion 14 is formed by using the rib 12d.

The packing holding portion 14 is configured by using one rib 12d1 selected from the plurality of ribs 12d and two ribs 12d2 adjacent to the selected rib 12d1. A fitting protrusion 14a which fits into the hole 1a of the packing 1 in the rib 12d1 is formed at a position corresponding to the hole 1a. Further, an abutting piece 14b is formed in an arc shape by connecting the two ribs 12d2 and 12d1.

The height of the rib 12d1 from the top plate 12a and the height of the contact piece 14b are formed to be lower than the other ribs 12d by the thickness of the packing 1. Furthermore, a notch 14c is formed at a position of the rib 12d1 corresponding to the outer peripheral portion of the packing 1 so that a finger can be inserted.

A locking claw 14d is formed on the free end side of the fitting protrusion 14a forming the packing holding portion 14. When the hole 1a of the packing 1 is inserted into the fitting protrusion 14a, the locking claw 14d abuts on one surface of the packing 1 and locks it, and the rib 12d1 and the abutting piece 14b are free. It is formed at a position having a dimension larger than the thickness of the packing 1 between the end and the end. Further, the projection size of the locking claw 14d from the outer peripheral surface of the fitting protrusion 14a is such that when the packing 1 is fitted into the fitting protrusion 14a, it can come into contact with the hole 1a of the packing 1. There is.

In the packing holding portion 14 configured as described above, by fitting the hole 1a of the packing 1 into the fitting projection 14a and pushing it in the direction of the top plate 12a, the packing 1 rides over the locking claw 14d and has a ring shape. The protrusion 1b contacts the rib 12d1 and the contact piece 14b. Therefore, the packing 1 is held by being sandwiched between the rib 12d1, the abutment piece 14b and the locking claw 14d, and the top plate 12a of the operation handle 12 and the hanging piece 12c are not separated from the packing holding portion 14. It will be hidden.

Further, when a finger is inserted into the rib 12d1 when removing the packing 1 held by the packing holding portion 14, the finger tip is inserted into the cutout portion 14c, so that the packing 1 is easily removed by applying force from the top plate 12a side. It is possible.

In this embodiment, the packing 1 can be held by the packing holding portion 14 by the locking claws 14d formed on the fitting projection 14a, but the present invention is not limited to this structure, and the outer diameter of the fitting projection 14a is not limited to this. May be slightly larger than the diameter of the hole 1a of the packing 1. In this case, the packing 1 can be held by the contact friction between the inner peripheral surface of the hole 1a of the packing 1 and the outer peripheral surface of the fitting protrusion 14a.

INDUSTRIAL APPLICABILITY The oxygen supply device A according to the present invention is advantageously used for a medical oxygen supply device in which a cylinder filled with high-pressure oxygen is used as an oxygen supply source and can be attached to and detached from the mouthpiece of the cylinder.

A oxygen supply device 1 packing 1a hole 1b protrusion 2 base 10 mounting member 10a hole 11 screw 12 operation handle 12a top plate 12b mounting portion 12c hanging piece 12d, 12d1, 12d2
Rib 13 Pressing member 14 Packing holding part 14a Fitting protrusion 14b Abutment piece 14c Notch part 14d Locking claw 15 Main body 16 Nozzle 16a Projection part 17 Connection port 18 Passage 18a Diaphragm 18b Kelep 18c Pressure gauge

Claims (2)

A medical oxygen supply device which is attached to a mouthpiece of a medical oxygen cylinder having an opening for allowing medical oxygen to flow, and which supplies medical oxygen to a patient,
A mounting member having a hole for inserting the base of a medical oxygen cylinder,
A pressing member that is arranged on the mounting member and presses the mouthpiece of the medical oxygen cylinder inserted through the hole of the mounting member in one direction,
A body containing a pressure adjusting mechanism for adjusting the pressure of medical oxygen, the main body being arranged to face the pressing member arranged on the mounting member,
A nozzle arranged in the main body, which is fitted with an opening provided in a mouthpiece of a medical oxygen cylinder to supply medical oxygen.
A ring-shaped packing disposed between the nozzle and the opening provided in the base of the medical oxygen cylinder;
The pressing member has a pressing body that abuts against the mouthpiece of the medical oxygen cylinder and presses it, and an operation handle arranged at one end of the pressing body, and the operation handle is a top plate portion, Between the pressing body mounting part formed in the center of the top plate part and in which the pressing body is arranged, the hanging part hanging from the peripheral edge of the top plate part toward the pressing body side, and between the hanging piece part and the pressing body mounting part. And a packing holding portion configured to hold the packing, the medical oxygen supplying apparatus. The packing holding portion formed on the pressing member includes a fitting projection piece that fits into a hole formed in the ring-shaped packing, and a ring-shaped fitting formed on the fitting projection and fitted to the fitting projection. A locking claw that abuts and locks one surface of the packing, and a notch formed at a position corresponding to an outer peripheral portion of the ring-shaped packing by abutting one surface of the ring-shaped packing. The medical oxygen supply device according to claim 1, wherein the oxygen supply device has a contact piece.

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