Pressure measuring port in the hose coupling of a ventilator

Abstract

A ventilation device designed as a patient interface (10) connectable to a breathing gas hose (5) and comprising a hose coupling (9) for a breathing gas hose (5), wherein a receptacle for a pressure measuring port and / or an oxygen port is arranged on the hose coupling (9), characterized in that the receptacle for the pressure measuring port or oxygen port can be closed by sliding the breathing gas hose (5) onto it, wherein the ventilation device is designed as a breathing mask (10) connectable to a breathing gas hose (5), comprising a mask body and a hose coupling (9) for a breathing gas hose (5) attached to the mask body, wherein the breathing mask (10) has a curved ball joint connector (12) as a hose connection (13) which is connected to the breathing hose (5) via the hose coupling (9), and wherein the mask body does not have a pressure measuring port or oxygen port.

Description

[0001] The invention relates to a ventilation device designed as a patient interface with a component for adapting an O2 or pressure measuring tube in the area of ​​a connection element for the ventilation tube.

[0002] Ventilation devices are important for sleep apnea patients because a patient interface, often designed as a ventilation mask, allows the delivery of breathing gas or oxygen-enriched air to a person suffering from impaired airflow and oxygen supply. The breathing gas is delivered via a gas supply and metering device through a tube or tubing system to the patient interface, which can be a nasal or full-face mask, nasal pillow, or tracheostomy device, and then into the airways.

[0003] When CPAP therapy is prescribed, the therapy pressure in the CPAP mask is often measured in the sleep lab. For this purpose, there are pressure measuring ports in the mask, especially in the area of ​​the mask body.

[0004] The ventilation devices known from the prior art, particularly ventilation masks, consist of numerous components, some of which serve to supply gas. The mask body typically has a port for a pressure sensor or an additional oxygen supply. This port is only needed for measurement during mask fitting. For the patient at home, the pressure sensor port in the mask body presents a difficult-to-clean design. Furthermore, a cap is required, which is a separate, small part that is also difficult to clean and is often lost by the patient.

[0005] The pressure measurement port is primarily used in sleep labs to connect an external pressure measurement tube, and to a lesser extent for the external supply of oxygen. The pressure measurement port on the mask body increases the cost of manufacturing the mask body, and the area around the port is very difficult to clean.

[0006] US Patent 2003 / 0047188A1 discloses a face mask with a gas monitoring function for improving patient care by increasing the efficiency of supplemental oxygen delivery. The face mask is configured to essentially direct all gas flows to and from the patient through a gas measuring device and efficiently deliver supplemental oxygen. Thus, the face mask enables the measurement of both oral and nasal gas exchange.

[0007] US 2005 / 0172969A1 discloses a breathing mask connectable to a breathing gas hose, comprising a mask body and a hose coupling attached to the mask body for a breathing gas hose, wherein a receptacle for a pressure measurement port and / or an oxygen port is arranged in the mask body.

[0008] US patent 2006 / 0249160A1 shows a breathing mask that can be connected to a breathing gas hose. The breathing mask has a mask body and a hose coupling attached to the mask body. The hose coupling has a connection for a pressure gauge port and, alternatively or additionally, for an oxygen port.

[0009] US 5,921,239 A discloses a breathing mask connectable to a breathing gas hose. It further discloses the use of a ball joint to increase the mobility of the breathing hose.

[0010] DIN EN 1707 1997-01-00 shows conical connections with a 6% (Luer) taper for syringes, needles and certain other medical devices.

[0011] This standard specifies the requirements for lockable conical connections used in the medical device industry.

[0012] Based on the prior art, the invention aims to realize the pressure measuring port outside the patient interface, in particular outside the mask body.

[0013] The problem is solved by providing a patient interface, connectable to a breathing gas hose and featuring a hose coupling for a breathing gas hose, with a receptacle for a pressure measurement connection or oxygen connection in the area of ​​the hose coupling.

[0014] The arrangement of the pressure measuring opening in the hose coupling between the hose and the ball joint has the advantage that the mask body has significantly lower manufacturing costs and an elaborate sealing cap can be omitted.

[0015] If the pressure measuring port is not used, the breathing tube can be pushed over the cone of the tube coupling so that the opening can be closed with the tube connection.

[0016] Alternatively, a second exchange hose coupling can be used in the sleep laboratory, which has a nozzle or opening for receiving the pressure measuring hose or an external oxygen supply source and is not used for normal use.

[0017] The opening can be designed as a bayonet fitting in the hose coupling or at the hose connection, or as a bore for a threaded connection with a steep thread and / or a locking mechanism.

[0018] If a hose connector with an opening or a nozzle for the pressure-measuring hose is used in the sleep lab, the therapy hose is only pushed onto the connector up to the opening or nozzle, and an additional pressure-measuring hose or oxygen hose can then be connected. Alternatively, a sleeve can be slid over the hose connector with the bore, which then forms the receptacle for the pressure-measuring hose.

[0019] There are many different ways to close the opening in the hose coupling. A sealing plug or cap may be included, which is equipped with a ring that is pushed over the cone of the hose coupling, thus preventing loss.

[0020] Another embodiment for closing a bore in the area of ​​the hose coupling can be a clip that snaps into an undercut on the circumference of the hose coupling and can be removed by hand. The connected breathing tube is pushed onto the rotating sleeve up to the clip.

[0021] However, a locking ring can also be used (see page 3), which is shaped so that it wraps around the circumference of the hose coupling, for example by 3 / 4, closes the opening and is fixed with the breathing tube that extends over the locking ring.

[0022] A hose coupling with a nozzle for receiving pressure measuring or oxygen hose can also be designed in such a way that the nozzle is provided with an internal or external thread, it can be conical inside or outside to receive the pressure measuring hose, or it can have an internal or external bayonet closure or be designed as a Luer-Lock connection.

[0023] The drawings illustrate exemplary embodiments of the invention. They show: Fig. 1 A perspective view of a ventilator with a connecting tube to a ventilation mask. Fig. Figure 2 shows a hose coupling (9) with an opening for a hose connection. Fig. Figure 3 shows a hose coupling (9) with an opening designed as a bayonet fitting. Fig. Figure 4 shows a ventilation mask with a hose coupling with opening and a closure cap (16) for the opening. Fig. Figure 5 shows a hose coupling (9) with an opening over which a clip (17) is pushed. Fig. Figure 6 shows a hose coupling (9) with an opening that is closed with a sleeve. Fig. Figure 7 shows a hose coupling (9) with a connection nozzle (19). Fig. Figure 8 shows a cross-section through a hose coupling (9) with a measuring adapter attached. Fig. Figure 9 shows a cross-section through a hose coupling (9) with a measuring connection sleeve (24). Fig. Figure 10 shows a cross-section through a hose coupling (9) with a sleeve (25).

[0024] Fig. Figure 1 shows the basic structure of a ventilation device. A breathing gas pump is located inside a device housing (1) with a control panel (2) and display (3). A breathing gas hose (5) is connected via a coupling (4). An additional pressure measuring hose (6) can run along the breathing gas hose (5) and can be connected to the device housing (1) via a pressure inlet port (7). The device housing (1) has an interface (8) to enable data transmission.

[0025] On the side of the breathing tube (5) facing away from the device housing (1) there is a tube coupling (9) for connecting the breathing tube (5) to the breathing mask (10).

[0026] Fig. Figure 1 also shows a breathing mask (10), which can be designed as a nasal mask or as a full-face mask. Fixation around the patient's head can be achieved using a head cap (11).

[0027] The breathing mask (10) has a curved ball joint connection (12) as a hose connection (13), which is connected to the breathing tube (5) via the hose coupling (9).

[0028] Fig. Figure 2 shows a ball joint connector (12) with an integrated emergency exhalation system (14) and a hose coupling (9) that has an opening (15) for receiving a pressure measuring port. The opening (15) can be round or oval. A round opening can receive a measuring port with a steep thread, which connects to the hose coupling. An oval opening can receive a measuring port with locking lugs that are inserted at the wider end of the opening and lock into place at the narrower end when rotated 180°.

[0029] Fig. Figure 3 shows another embodiment of the hose coupling (9) in which the opening (15) has a bayonet fitting to attach the pressure measuring hose.

[0030] Fig. Figure 4 shows a side view of a hose coupling (9) with a bore, over which a closure cap (16) is placed, which snaps into an undercut of the hose coupling and thus closes the bore.

[0031] Fig. Figure 5 shows a tube coupling with an opening over which a clip (17), shown here in cross-section, is slid. The clip closes three-quarters of the way around the circumference of the tube coupling, and the breathing tube can be pushed over it. The clip (17) is made of a flexible material and, due to its elasticity, can be bent open enough to be slipped over the tube coupling (9). The clip then seals against the tube coupling in the area of ​​the opening (15). For further fixation, the tube can be pushed over the clip that rests on the opening.

[0032] Fig. Figure 6 shows that the hose (5) with its flexible connection area (18) can be pushed over the sleeve (17) lying on the opening (15) for further fixing.

[0033] Fig. Figure 7 shows a hose coupling (9) with a connecting piece (19) for connection to a pressure gauge or external oxygen hose. Connection options include an internal or external thread, a fitting that is internally or externally conical, or a Luer-lock connection.

[0034] Fig. Figure 8 shows a hose coupling (9) with an opening (15). A measuring adapter (20) is arranged in the area of ​​the opening. The measuring adapter (20) is pushed over the hose coupling (9). The measuring adapter has a through-channel (21) which, when the measuring adapter is correctly positioned, is located above the opening (15). The through-channel (21) leads into a nozzle (22) which serves to connect an oxygen hose (23) for supplying oxygen, or a measuring hose (23) for carrying out pressure measurements.

[0035] The advantage of this embodiment is that the opening (15) is closed by the hose during normal operation, by pushing the hose onto the hose coupling (9). If a user wants to supply oxygen or measure the pressure, they use the measuring adapter (20), which is pushed over the opening. The hose is pushed onto the hose coupling (9) as usual, but not all the way over the opening, since the measuring adapter rests there.

[0036] Fig. Figure 9 shows a cross-section through a hose coupling (9) with an opening in which a measuring connection hook (24) is inserted into the opening (15) and is locked with a snap hook on an undercut of the hose coupling (9).

[0037] Fig.Figure 10 shows a cross-section through a hose coupling (9) without a bore, over which a sleeve (25) with a measuring connection is pushed. An air channel (21) is formed between the hose coupling (9) and the sleeve, which opens into a nozzle (22). In this embodiment, the sleeve is at least partially longer than the hose coupling (9). This allows the air channel to be connected to the interior of the hose coupling.

Claims

[1] A ventilation device designed as a patient interface (10) connectable to a breathing gas hose (5) and having a hose coupling (9) for a breathing gas hose (5), wherein a receptacle for a pressure measuring port and / or an oxygen port is arranged on the hose coupling (9), characterized by , that the receptacle for the pressure measuring or oxygen connection can be closed by sliding on the breathing gas hose (5), wherein the device for ventilation is designed as a breathing mask (10) connectable to a breathing gas hose (5), with a mask body and a hose coupling (9) attached to the mask body for a breathing gas hose (5), wherein the breathing mask (10) has a bent ball joint connection (12) as a hose connection (13), which is connected to the breathing hose (5) via the hose coupling (9), and wherein the mask body does not have a pressure measuring or oxygen connection. [2] Device according to claim 1, characterized by , that the receptacle for the pressure measuring or oxygen connection is a rounded, in particular oval or circular, opening (15) in the hose coupling (9). [3] Device according to claim 2, characterized by , that the opening (15) is designed as a bayonet fitting. [4] Device according to claim 1, characterized by that the receptacle for the pressure measuring or oxygen connection can be closed by a clip (17). [5] Device according to claim 1, characterized by , that the receptacle for the pressure measuring or oxygen connection can be closed by a locking cap (14) which snaps into an undercut of the hose coupling (9). [6] Device according to claim 2, characterized by , that a measuring adapter (20) is arranged at the opening (15), which surrounds the hose connection (9). [7] Device according to claim 6, characterized by, that the measuring adapter (20) has a through channel (21) which leads into a nozzle (22) which serves to connect a measuring or O2 hose.

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