Patent Application
20180317587
The present invention generally relates to a non-invasive airway opening device for helmets. More particularly, the invention relates to a jaw thrust maneuver performing device which is attachable to a helmet, for facilitating opening of the airway and monitoring of the anterior triangle of the neck following a traumatic event to which the wearer of the helmet, such as a motorcycle rider, was subjected.
In the practice of emergency medicine and the treatment of trauma it is common for a patient to lose consciousness and the ability to maintain open airways and respiration. Loss of respiration is often fatal. There are several methods known in the art for maintaining open airways. All invasive methods to maintain an open airway involve devices that are inserted into the airway and mechanically supply an open tube aimed to maintain an open airway. One invasive technique is surgical cricothyroidotomy involving the insertion of a tube through the neck of the patient. Other invasive techniques involve tracheal intubation or laryngeal mask. The non-invasive way to protect the airway in trauma patients is by manually pushing the jaw forward. This becomes much more complicated in a case when a helmet removal is required, e.g., in a road traffic accident that involves a motorcyclist or any other incidents involving a patient with a helmet on.
In the practice of emergency medicine it is known that unsafe to attempt to remove the helmet of a motorcyclist who has been injured in a road traffic accident. Doing so could exacerbate any spinal injury the rider may have suffered, which could lead to serious paralysis or even death. But there are times when removing the helmet is unavoidable if the injured rider's life is to be saved, such as when the rider has stopped breathing and an emergency resuscitation must be perform.
There is therefore a need to open an airway without removing the helmet and to maintain open airways, as suffocation condition, is highly damaging, often fatal, and usually irreversible. Therefore there is a need for a novel helmet device to enable opening of the airways.
There are techniques known in the art for maintaining open airways by maintaining an open mouth, but none of them refer to a wearer of a helmet, such as a motorcyclist.
It is an object of the present invention to provide a non-invasive airway opening device for a helmet that facilitates both opening of the airway as well as monitoring of the throat following a traumatic event without removing the helmet off the wearer's head.
Other objects and advantages of the invention will become apparent as the description proceeds.
The present invention provides a helmet mounted safety device for ensuring an open airway, comprising right and left mandible engaging sections, wherein each of said mandible engaging sections comprises an adjustable airway opening member for assuring opening of the airway, wherein each of said mandible engaging sections is connected to a side portion within an interior of a helmet in order to facilitate engagement with the mandible of a wearer of said helmet upon demand.
In one aspect, the airway opening device is fixed to fit the neck and face sizes of most people. In another aspect the airway opening device is adjustable to fit the neck and face sizes of a specific wearer.
In one aspect, the airway opening device further comprises a cervical support that is adapted to be in neck stabilizing engagement with the neck the helmet wearer, wherein the cervical support includes an occipital portion and two sternocleidomastoid (SCM) portions between which said occipital portion is interposed for engaging the SCM muscle at the side of the neck. The cervical support is preferably of bilateral symmetry. In one aspect, the occipital portion and the two SCM portions are formed as a single unit.
In one aspect, each of the mandible engaging sections comprises a baseplate and a carrier for the airway opening member which is controllably displaceable along a groove formed in said baseplate. The carrier may be longitudinally and ratchetedly displaceable along the groove, being connected to a manipulator by a fastening element passing through the groove. The airway opening member protrudes medially from the baseplate and the manipulator protrudes distally therefrom.
The airway opening member is an external device that applies a force onto the corresponding mandible angle to push the mandible forwardly and to cause the jaws to open, thereby preventing backward collapse of the mandible and suffocation.
The airway opening member comprises a first element for contacting the bottom of the mandible angle and a second element which is angularly spaced and extends upwardly from said first element, for example by an angle ranging from 110 to 160 degrees.
The airway opening member supports the mandible in two directions. As it supports the mandible from below, and also applies a force onto the mandible angle from behind, it induces forward movement of the mandible to enable opening of the airway while continuing to prevent flexion movement of neck. Since the vector that prevents flexion is applied to the mandible by the airway opening member from both sides, the front portion of the helmet may be removable for allowing access to the neck.
In one aspect, the displacement of the mandible engaging sections forward can be done automatically, by using a spring force based device, an electromechanical device or any other device suitable of pushing forward the carrier of the airway opening member.
In one aspect, the airway opening member is activated automatically after detecting an accident event by an integrated impact sensor or by remote operation from a control center.
In one aspect, each of the mandible engaging sections is integrally formed with the interior of the helmet.
In one aspect, the safety device further comprises one or more detachment elements for facilitating detachment of the device from the interior of the helmet and removal of the helmet without necessitating movement of the airway opening member.
The present invention is also directed to a helmet with an airway opening device for ensuring an open airway for the wearer of the helmet, comprising right and left mandible engaging sections, wherein each of said mandible engaging sections comprises an adjustable airway opening member for assuring opening of the airway, wherein each of said mandible engaging sections is connected to a side portion of an interior of said helmet in order to facilitate engagement with the mandible of the wearer upon demand.
According to an embodiment of the invention, the helmet is provided with a removable front portion for allowing access to the neck.
In the drawings:
The present invention relates to an airway opening device for helmets that facilitates opening of the airway, for example by the jaw thrust maneuver, and enables a medical practitioner to monitor clinical conditions of the anterior triangle of the neck. The airway opening device of the present invention is engaged onto the subject (i.e., the wearer of the helmet) by a practitioner standing at the subject's front who simultaneously manipulates right and left engagement elements to ensure opening of an airway.
Activating the airway opening device is done by pushing the mandible engaging section forward either manually or automatically. This can be obtained by applying a variety of devices suitable of automatically or manually pushing forward the carrier for the airway opening member (towards the front section of the helmet). For example, the displacement of the mandible engaging sections forward can be done by applying a spring force based device, an electromechanical device and the like. According to some embodiments of the invention, the airway opening device is activated automatically after detecting an accident event by an integrated impact sensor or by remote operation from a control center.
Although baseplate 16 is described as having a “medial” or “proximate” side, and a “distal” side for describing a relative location when mandible engaging section 15 is bodily engaged and carrier 14 is able to slide from one side to another, it is to be noted that these or other directional terms are also relevant to describe relative locations when mandible engaging section 15 is not bodily engaged. Accordingly, when carrier 14 is in the distal side of baseplate 16 (closer to the rear side of helmet 1), cervical support device 10 is not in use (i.e., “non-support” mode), and when carrier 14 is slid to the proximate side of baseplate 16 (closer to the front side of helmet 1) then cervical support device 10 is used to support the wearer's mandible (i.e., “support” mode).
Baseplate 16 is formed with at least one longitudinal groove 12, e.g. oval, along which carrier 14 is displaceable. One, or any other number of, fastening elements 22, which connect carrier 14 to manipulator 42 protruding from the distal side of baseplate 16, e.g. a curved handle, pass through groove 12 to enable the longitudinal displacement of carrier 14 to permit controllable and adjustable displacement of carrier 14.
Airway opening member 17 medially protruding from carrier 14 has a first substantially horizontal element 48 that is substantially parallel to bottom edge of baseplate 16 and a second element 49 angled upwardly from first element 48. Angle “α” between first element 48 and second element 49 ranges from 110-160 degrees. This angle is sufficient to cause, when airway opening member 17 is engaged with the angle of the mandible in the vicinity of the ramus, at a corresponding distal end of the mandible, the jaws to open for ensuring an open airway. First element 48, when supporting the bottom of the mandible angle, also serves to prevent downward tilt or flexion of the neck.
Referring now to
Cervical support 20, which has bilateral symmetry, is made from any suitable flexible and non-irritating material, such as soft foam material, natural and synthetic polymers, and metal wire reinforced materials, which can comfortably conform to the bodily portions when bent and remain engaged for prolonged periods of times without causing decubitis or other types of irritation. An element designated by the letter R will indicate one located on the right side of the subject, and an element designated by the letter L will indicate one located on the left side of the helmet's wearer 2.
An intermediate region 5 of cervical support 20 is defined by an upper, slightly curved portion 7 and a lower elongated portion 9 having a significantly less curvature than upper edge 7.
Intermediate region 5 is used as a central occipital portion for engaging the occipital bone as shown in
In operation with reference to
A practitioner standing at the front of the helmet's wearer 2 then pulls on both manipulators 42 of mandible engaging sections 15 simultaneously until a rearward head motion is prevented.
Each carrier 14 of mandible engaging section 15 is manipulated until airway opening member 17 contacts the corresponding mandible angle, to ensure that airway opening member 17 applies a force on the corresponding mandible angle for causing the jaws to open and the airway to remain opened. Although the lips of the wearer 2 appear to be closed, this lip position does not preclude the possibility of the jaws being opened since a jaw opening of even one centimeter is sufficient to ensure an open airway. Forward head movement is thereby prevented since the occipital portion is in engagement with the back of the head. Sideways head movement is also prevented since each SCM portion is in engagement with a corresponding SCM muscle, which runs downwardly along the side of the neck substantially below the ear and functions to rotate or extend the head.
As the structure of the aforementioned cervical support device ensures that the anterior triangle of the neck located between the two SCM muscles remains exposed, as described hereinabove, a medical practitioner is able to monitor various clinical conditions, after the cervical support device has been bodily engaged, which have not been achievable heretofore by prior art helmets wearers in order to provide sufficient head immobility.
For example, an exposed anterior triangle enables a member of an intensive care unit to perform a tracheostomy to invasively open the airway of a neck stabilized subject, or to perform a transfusion via the external jugular vein.
All of these advantages are achievable by a support device that is surprisingly light, easily and quickly manipulated, and of superior neck stabilization, which can be integrated with existing helmets or as a novel type of safety helmets.
The configuration of headgear 115 facilitates easy detachment of the helmet from device 110 while the helmet is on the subject's head and the airway opening member is bodily engaged. The helmet is thus advantageously able to be safely removed from the subject's head without removing the airway opening member and without compromising the open airway. This detachment feature is important in emergency settings when a caregiver needs to have access to the subject's face and/or neck and wishes to maintain an open airway.
As shown in
A second strap 122 substantially perpendicular to first strap 121 is also provided, and extends superiorly from the right side of first strap 121 to the left side thereof. Second strap 122 encircles the skull, when bodily engaged, to define a plane that approximates a frontal plane while engaging the temporal bone and the parietal bone.
Straps 121 and 122 may be made of any rigid and unstretchable material, flexible material, or stretchable material such as plastic, rubber and leather, as long as headgear 115 is suitably secured to the head.
When headgear 115 is mounted on head 105 of a subject, as shown in
A schematically illustrated detachment element 135 is shown to be applied to each of straps 121 and 122. It will be appreciated that the number of detachment elements 135, their location on the headwear, and their configuration may be varied in any desired fashion.
The detachment of device 110 from the helmet may be carried out with use of any suitable detachment element 135, whether fasteners such as snaps or hook and loop patches, or by mechanical or electrical actuation. Non-limiting examples for performance of a detachment operation include pulling a lever or pressing a button. Alternatively, the detachment may be done by any other means that allow the quick and easy detachment of the airway opening device from the helmet and the subsequent removal of the helmet.
Airway opening device 110 may also comprise cervical support 20 illustrated in
In another embodiment, an airway opening device may be configured with an element that is supported on the chin, for example with use of a mesh that covers the chin area, rather than on the maxilla.
While some embodiments of the invention have been described by way of illustration, it will be apparent that the invention can be carried out with many modifications, variations and adaptations, and with the use of numerous equivalents or alternative solutions that are within the scope of persons skilled in the art, without exceeding the scope of the claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 236216 | Dec 2014 | IL | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/IL2015/051191 | 12/9/2015 | WO | 00 |
