Medical ventilator with improved internal frame

Abstract

Title of the Invention: Medical Ventilator with Improved Internal Frame. The invention relates to a medical ventilator comprising an internal frame (1) formed of a rigid three-dimensional structure (2) to which operating elements (8, 9, 10) of the ventilator are attached. The internal frame (1) includes openings (11) dimensioned to receive flexible fastening means (12), such as hose clamps, and the operating elements (8, 9, 10) of the ventilator are attached to the internal frame (1) using said flexible fastening means (12). Abstract Figure: Figure 3

Description

Title of the invention: Medical ventilator with improved internal frame

[0001] The invention relates to a medical ventilator equipped with an improved internal chassis allowing for the easy attachment of various internal elements of the medical ventilator and ensuring its proper functioning.

[0002] Medical devices or appliances for assisted ventilation, also called medical ventilators, include an internal frame. The internal frame may be formed of metal plates or other materials, for example aluminum alloy or steel, assembled together, for example by riveting, welding or otherwise, or formed of a tortuous dimensional structure typically obtained by additive manufacturing.

[0003] The chassis constitutes a support structure for all or part of the internal elements ensuring the operation of the medical ventilator, such as the turbine supplying the gas, electronic boards, internal fluid circuits, and also the external casing of the ventilator, and sometimes a support arm carrying a display screen.

[0004] Currently, the internal operating elements that ensure the functioning of the medical ventilator are fixed by screwing. Each operating element must be screwed to the chassis structure, which is a long and tedious process.

[0005] The problem is therefore to propose a medical ventilator with an improved internal frame allowing for simpler and faster attachment of the operating elements which must be attached to it.

[0006] The solution of the invention relates to a medical ventilator comprising an internal frame formed of a rigid three-dimensional structure to which ventilator operating elements are attached, characterized in that the internal frame includes passages dimensioned to receive for flexible fastening means, and the ventilator operating elements are attached to the internal frame using said flexible fastening means.

[0007] Depending on the embodiment considered, the chassis of the invention may comprise one or more of the following features: - Flexible fastening methods are chosen from hose clamps. - the cable ties are made of polymer, for example of the Rislan® type or similar. - the passages have an internal curvature. - the three-dimensional structure is made of polymer. - the three-dimensional structure is convoluted. - a support arm surmounts the three-dimensional structure. - a display screen is arranged on the support arm, also called a gantry. - the three-dimensional structure is formed from a single piece or from several subunits or sub-parts assembled together. - the operating elements of the fan are chosen from: a turbine delivering gas, control means, a gas circuit and a battery. - the fan operating elements have openings or passages suitable for receiving flexible fixing means, i.e. clamps, in order to ensure their attachment to the chassis. - the control means include a microprocessor-based electronic board. - the gas circuit includes passages for the gas, such as conduits or the like. - The battery is rechargeable. - the three-dimensional structure is formed from elements obtained by additive manufacturing process using a wire or powder, preferably made of polymer material.

[0008] The invention will now be better understood with reference to the following detailed description, given by way of illustration but not limitation, with reference to the accompanying figures, among which:

[0009] [Fig-1] schematically illustrates an embodiment of a chassis for a medical ventilator according to the invention.

[0010] [Fig.2] schematically shows the chassis of [Fig.1] equipped with various components of operation of the medical ventilator.

[0011] [Fig.3] schematically shows the attachment of the turbine of [Fig.2] to the chassis.

[0012] [Fig. 1] schematically illustrates an embodiment of a chassis 1 for a medical ventilator comprising a rigid three-dimensional structure 2 formed here of several elements 3 joined together. This three-dimensional structure 2 is convoluted and here made of polymer. It is formed of elements of various shapes obtained by additive manufacturing from polymer in the form of wire, powder, or other. It includes a support arm 4 surmounting the main body 5 of the three-dimensional structure 2. Such a support arm 4 is intended to support the display screen (not shown) of the medical ventilator (not shown).

[0013] Furthermore, the main body 5 of the three-dimensional structure 2 here includes legs or feet 6 supporting the main body 5 of the three-dimensional structure 2. Here, the legs or feet 6 come to rest in the bottom 7 of a medical ventilator, that is to say on the wall closing the base of the external casing of a medical ventilator (rest of the ventilator not shown).

[0014] [Fig.2] is analogous to [Fig.1]. It schematically represents the chassis 1 carrying different operating components 8-10 of the medical ventilator, namely here a turbine 8 delivering a medical gas, such as air, oxygen or an air / O2 mixture, a gas circuit 9 and an electronic board 10. Preferably, it also carries a battery, preferably rechargeable.

[0015] According to the invention, these fan operating elements 8-10 are attached to the internal frame 1 using flexible fastening means such as hose clamps, like Rislan® polymer clamps. These hose clamps pass through suitable openings provided in the rigid three-dimensional structure 2 forming the fan frame 1. Such hose clamps ensure that the operating elements 8-10 are securely held within the fan. They are quick and easy to install, and inexpensive.

[0016] [Fig.3] schematically illustrates the attachment of the turbine 8 of [Fig.2] to the chassis 1 via means flexible fixing means 12, namely here a Rislan® type clamp 12 (truncated view) fitting into a passage 11 of the chassis 1, which is dimensioned to receive such flexible fixing means 12.

[0017] Furthermore, the turbine 8 also includes fixing holes 18 through which the flexible fixing means 12, i.e. the clamping collar, pass, in order to secure it to the chassis 1. These fixing holes 18 can be those usually through which the mounting screws pass in conventional fans.

[0018] In general, the operating elements 8, 9, 10 to be mounted on the chassis must include openings or other passages suitable for receiving the flexible fastening means 12, i.e. the clamping collar, in order to ensure their attachment to the chassis 1.

[0019] Preferably, the passages 11 or housings of the frame 1 form channels or the like, receiving the clamps, which are inserted into them. For example, these channels may have a given curvature that is calculated to accommodate torsion without breakage of the clamp during its insertion into the passage 11.

Claims

Demands

1. Medical ventilator comprising an internal frame (1) formed of a rigid three-dimensional structure (2) to which operating elements (8, 9, 10) of the ventilator are attached, characterized in that the internal frame (1) includes passages (11) dimensioned to receive for flexible fastening means (12), and the operating elements (8, 9, 10) of the ventilator are attached to the internal frame (1) using said flexible fastening means (12).

2. Fan according to claim 1, characterized in that the flexible fastening means (12) are selected from clamps.

3. Fan according to claim 2, characterized in that the clamps are made of polymer.

4. Fan according to claim 1, characterized in that the operating elements (8, 9, 10) comprise a turbine (8) delivering a medical gas, a gas circuit (9), an electronic board (10) and a battery.

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