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EP3681458B1 - Krücke - Google Patents

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Publication number
EP3681458B1
EP3681458B1 EP18857196.2A EP18857196A EP3681458B1 EP 3681458 B1 EP3681458 B1 EP 3681458B1 EP 18857196 A EP18857196 A EP 18857196A EP 3681458 B1 EP3681458 B1 EP 3681458B1
Authority
EP
European Patent Office
Prior art keywords
leg
crutch
main body
arm rest
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18857196.2A
Other languages
English (en)
French (fr)
Other versions
EP3681458A4 (de
EP3681458A1 (de
Inventor
Max Jeffries YOUNGER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Medical Depot Inc dba Drive Devilbiss Healthcare
Original Assignee
Mobility Designed Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mobility Designed Inc filed Critical Mobility Designed Inc
Publication of EP3681458A1 publication Critical patent/EP3681458A1/de
Publication of EP3681458A4 publication Critical patent/EP3681458A4/de
Application granted granted Critical
Publication of EP3681458B1 publication Critical patent/EP3681458B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/02—Crutches
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/02—Crutches
    • A61H3/0277—Shock absorbers therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/02—Crutches
    • A61H3/0288—Ferrules or tips therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/04—Wheeled walking aids for patients or disabled persons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H2003/001—Appliances for aiding patients or disabled persons to walk about on steps or stairways
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H2003/002—Appliances for aiding patients or disabled persons to walk about with attached or incorporated article carrying means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H2003/006—Appliances for aiding patients or disabled persons to walk about with forearm rests, i.e. for non-used arms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/02—Crutches
    • A61H2003/0211—Crutches with curved ground-engaging means, i.e. rockers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/02—Crutches
    • A61H3/0244—Arrangements for storing or keeping upright when not in use
    • A61H2003/025—Arrangements for storing or keeping upright when not in use with devices for securing a pair of crutches together
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/02—Crutches
    • A61H3/0244—Arrangements for storing or keeping upright when not in use
    • A61H2003/0266—Arrangements for storing or keeping upright when not in use with magnetic fixing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/02—Crutches
    • A61H3/0277—Shock absorbers therefor
    • A61H2003/0283—Shock absorbers therefor using elastomeric material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/01—Constructive details
    • A61H2201/0192—Specific means for adjusting dimensions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16—Physical interface with patient
    • A61H2201/1602—Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
    • A61H2201/1635—Hand or arm, e.g. handle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16—Physical interface with patient
    • A61H2201/1683—Surface of interface
    • A61H2201/169—Physical characteristics of the surface, e.g. material, relief, texture or indicia
    • A61H2201/1697—Breathability of the material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2230/00—Measuring physical parameters of the user
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2230/00—Measuring physical parameters of the user
    • A61H2230/04—Heartbeat characteristics, e.g. E.G.C., blood pressure modulation
    • A61H2230/06—Heartbeat rate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2230/00—Measuring physical parameters of the user
    • A61H2230/30—Blood pressure

Definitions

  • the crutch is a mobility aid that is widely used throughout the world. Crutches allow the user to support their body weight in the event that the lower extremities of the body are unable to do so. Typically, a crutch is provided for each side of the body, and often are configured to fit beneath the under arms of the user. Handles are located on the crutches, and the user such that, in use, the person's weight is distributed between the under arms, the hands, and the wrists of the user.
  • crutches There are several disadvantages to traditional crutches. Many people have difficulty coordinating movement with crutches due to the uncomfortable positioning of the crutches at the underarms. Further, the user may quickly become fatigued, and the stress placed on the user's hands and wrists may perpetuate further injury. It would be desirable to have a crutch that allows for an easier transition for the user and that allows the user to make use of his or her elbows and/or upper arms to support the body weight.
  • ES2431414 discloses a crutch configured for supporting the user's underarm, but it is of a complex design with a high risk of pinch point injuries.
  • a crutch has a main body having a substantially vertical tubular member with a plurality of apertures formed therein; an angled portion extending upwardly from the substantially vertical tubular member; an arm rest support extending perpendicularly from the angled portion for receiving an arm rest; and a handle extending outwardly from the arm rest support.
  • the crutch further includes a leg telescopically received into the substantially vertical tubular member, and a foot exchangably received by the leg.
  • a crutch in another embodiment, includes a main body having a tubular member and an arm rest extending outwardly from the tubular member, and a leg telescopically received by the tubular member, the leg having a foot removably secured thereto.
  • the arm rest has a cradle configured to receive the forearm of a user.
  • a crutch has a main body with a tubular member having a first and second end; an angled portion extending upwardly from the tubular member first end, the angled portion having a hollowed back to form a pocket therein; an arm rest support extending outwardly from the angled portion; and a handle extending outwardly from the arm rest support.
  • a leg is telescopically received at a first end by the tubular member second end; and a foot is removably received by a second end of the leg.
  • a crutch comprises a main body, a leg, and a foot.
  • the main body has an arm rest support with a front end and a rear end. The front end has an opening formed in a front face thereof.
  • the main body has a handle that extends outwardly from a front end of the arm rest support. The handle does not extend from the opening in the front end.
  • the leg is received in the opening of the front end of the arm rest support, and includes a first angled section and a second substantially vertical section.
  • the first angled section and the second substantially vertical section are of a unitary configuration, or comprise one singular component. The first angled section is received into the opening in the front end.
  • the foot is exchangably received into the leg.
  • a crutch has a main body, comprising an arm rest support and a handle.
  • the arm rest support has an elbow end, a front end, and a connection point.
  • the connection point end defines a front face having a first opening formed therein.
  • the bottom edge forms a second opening.
  • the handle extends outwardly from a front end of the arm rest support, but does not extend from first or second openings.
  • the crutch further comprises a leg operably connected to the main body. In a first configuration, the leg is received into one of the first and second openings. In a second configuration, the leg is received into the other of the first and second openings. The leg is selectively convertible between the first and second configuration.
  • a crutch has a main body and a leg.
  • the main body has an arm rest support with a front end and a rear end.
  • the front end defines a front face with an opening formed therein.
  • a bottom edge of the main body forms a second opening.
  • An arm rest is hingedly connected to the rear end of the arm rest support.
  • a leg is operably connected to the main body. In a first configuration, the leg is received into one of the first and second openings. In a second configuration, the leg is received into the other of the first and second openings. The leg is selectively convertible between the first and second configuration.
  • a crutch 100 has a main body structure 105 and a leg 150 attached to an interchangeable foot 160 for contacting the ground.
  • the main body 105 may include a substantially vertical tubular member 110 leading to a first angled portion 113 which extends upwardly at an angle to a second oppositely angled portion 115 leading to an arm rest support 118 having a handle 140 extending therefrom.
  • the main body vertical tubular member 110 may be hollow in order to receive the leg 150.
  • the leg 150 may be equipped with a mechanical fastening mechanism, such as a quick release button, which may engage with apertures 112 formed in a backside of the vertical tubular member 110.
  • the vertical tubular member 110 extends upwardly toward the first angled portion 113, which extends upwardly in a forward direction at a predetermined angle between 0 and 90 degrees relative to horizontal.
  • the first angled portion 113 may also be hollowed, forming a void 116 therein.
  • the void 116 may be used, for example, as a pocket for storing a user's valuables, such as a keys or a cell phone, or may be equipped to hold other personal items such as a water bottle. To prevent the contents of the pocket 116 from slipping, and to minimize movement within the pocket 116, the pocket 116 may be equipped with a rubber (or other similar material) coating. Additionally, handles 117 may be formed into the sides of the angled portion 113 for ease of carrying the crutch 113.
  • the first angled portion 113 is so designed in order to provide the crutch 100 with shock absorbing capabilities. As the user relies on the crutch 100 and a portion of the user's body weight is transferred to the crutch 100, and the angled portion 113 is allowed to flex slightly such that the angled portion 113 absorbs a portion of the force, transferring the transferred force away from the user's arms, hands, and/or under arms.
  • Ribs 116 illustrated in FIG. 4 , may be formed or placed around the interior surface of the angled portion 113 to provide reinforcement to the angled portion 113 and strength to the main body 105. Although not shown in the drawings, covers may be provided to snap (or otherwise attach) to the main body 105 to cover the ribs 116.
  • the first angled portion 113 extends upwardly to the second angled portion 115, which extends outwardly therefrom to form the arm rest support 118.
  • the arm rest support 118 may be configured to engage with an arm rest 124.
  • the arm rest 124 may include a cradle 125 configured to receive the user's forearm.
  • the cradle 125 may include a first end comprising an elbow cup 127 for receiving the user's elbow, and a second open end 128 opposite the elbow cup 127, allowing the user's arm to extend outwardly therefrom.
  • bracing 129 may be provided and secured at positions along the outer edges of the cradle 125.
  • the cradle 125 may be hingedly connected to the arm rest support 118 via hinged connection 122.
  • the cradle 125 may pivot about the hinged connection 122 as shown in FIGs. 3A and 3B .
  • Teeth 130 may be provided along an underside of the cradle 125, which may engage with apertures 119A, 119B formed into the arm rest support 118.
  • the cradle 125 may be secured to the arm rest support 118 via a sliding lock 123, for example, to prevent the cradle 125 from unexpectedly or undesirably detaching from the arm rest support 118.
  • the cradle 125 and the arm rest support 118 may have a unitary configuration.
  • the arm rest support 118 may be held at a fixed position approximately 0 to 15 degrees relative to horizontal. Accordingly, the arm rest 124 may also be held at a position approximately 0 to 15 degrees relative to horizontal.
  • Padding 226, such as a foam insert, may be provided in the cradle 125 to provide maximum comfort and impact absorption.
  • the padding 226 may extend over the sides of the cradle 125.
  • the padding 226 may provide a friction interface between the cradle 125 and a surface upon which the crutch 100 may rest against.
  • Foams of varying densities may be used depending on the user's specific requirements and comfort.
  • multiple layers of foam and/or other padding may be used to pad the cradle 125. It may be desirable for the padding 126 to be hydrophobic and/or antimicrobial to resist sweat and microbial growth. Fabric may additionally be provided for comfort.
  • the elbow cup 127 may further include a gel pocket, either separately or embedded in the foam liner in order to provide extra padding, as the elbow cup 127 may receive the majority of the user's weight.
  • the padding 126 may be constructed of a first layer of single density foam, a gel pocket encapsulated at the area of the elbow cup 127, and a second layer of antimicrobial fabric.
  • the padding 127 may be removable such that the user can switch out the liners. Accordingly, the padding 127 may be secured to the cradle 125 via an adhesive (e.g., double sided tape, Velcro, etc.) or a mechanical attachment (e.g., snaps, hooks, etc.). Those of skill in the art will recognize that it may be beneficial for the padding 126 to have perforations to promote airflow.
  • an adhesive e.g., double sided tape, Velcro, etc.
  • a mechanical attachment e.g., snaps, hooks, etc.
  • an upper arm sleeve may be attached to the back of the elbow cradle 127.
  • the upper arm sleeve may provide stability to the crutch 100 when in use.
  • the upper arm sleeve may be allowed to flex in order to support the user's upper arm to still permit natural movement of the user's arm.
  • the upper arm sleeve may include first and second arms, positioned on either side of the elbow cradle 30, and attached thereto with a spring loaded hinge or other appropriate mechanical fastening mechanism.
  • a band may be secured to the free ends of the arms, and may be configured to wrap partially or completely around the user's upper arm.
  • the spring loaded hinge may bias the upper arm sleeve in the direction of the user's arms. In use, the user's arms may overcome the force of the spring to bias the upper arm sleeve in the opposite direction. Accordingly, the upper arm sleeve may be configured to maintain constant contact with the user's upper arms.
  • the arm rest 124 may further be equipped with bracing 129 to maintain the user's arms in the cradle 125.
  • the bracing 129 may include straps secured at one end to respective positions along either side of the cradle 125, the other end extending at least partially over the cradle 125.
  • apertures (such as those shown in FIG. 8 at 331) may be formed along either or both sides of the length of the cradle 125 to serve as the connection point for the bracing 139.
  • Various fastening mechanisms may be employed on one end of the straps to secure the bracing 129 to the cradle 125, such as snaps, rivets, screws, etc.
  • a t-bar slot may be formed along the outer edge of the cradle 125, and the straps may be equipped with a respective t-bar to engage with the t-bar slot.
  • the t-bar slot/t-bar fastening mechanism may allow the user the most flexibility in choosing the best position for the bracing 129.
  • the bracing 129 may be configured to restrain the user's arm while in normal use with the crutch 100, but to allow for a quick release of the user's arm when necessary. Accordingly, the bracing 129 may be constructed of a flexible plastic, or other flexible material.
  • One exemplary material is ethylene vinyl acetate (EVA), which can be easily molded according to the size and shape of the user's arm.
  • EVA bracing 129 To mold EVA bracing 129, the user may place the individual straps into boiling water to make the EVA malleable. Then, the straps may be bent to the desired shape.
  • the device may additionally, or alternately, utilize Velcro or other similar straps to secure the user's arms in the cradle 125.
  • Other exemplary bracing mechanisms may include the use of rigid (e.g., hard plastic) straps in a hinged connection with the cradle 125, such as those shown in FIG. 3A and 3B .
  • Respective rigid straps may be located opposite each other on either side of the cradle 125, or on a single side of the cradle 125, and extend partially over the cradle 125.
  • a gap may be provided between rigid straps extending from either side of the cradle 125 to allow the user to break free of the straps.
  • the apertures (e.g., 331) formed in the cradle 125 may provide additional or alternative benefits to the user.
  • specially designed hooks, clips, trays, containers, or other accessories may be attached to the crutch 100, allowing the user to carry objects that he or she would otherwise not be able to carry, such as a purse or bag, grocery basket, food tray, pot of water, laundry basket, beverage, phone, etc.
  • the handle 140 extends outwardly from the arm rest support 118.
  • the handle 140 may include an extension member 142 a gripping portion 144.
  • the extension member 142 may be, for example, a telescoping rod having a proximal end 142B configured to engage with a channel 121 formed in the underside of the arm rest support 116, and a distal end 142A. To provide the most comfortable and natural fit, it may be beneficial for the channel 121 to be offset from the center of the arm rest support 118 by approximately 0 to 25 degrees.
  • the extension member 142 may be equipped with one or more quick release buttons (or other appropriate locking device) for engaging with respective openings 120 ( FIGs.
  • the extension member 142 may be moved in the desired direction until the locking device on the extension member 142 engages with the desired opening 121. This process may be repeated until the handle 140 is at the desired distance.
  • the gripping portion 144 may be equipped with a length adjustment mechanism (e.g., button 144A) that releases the extension member 142 from its engagement with the channel 121 in order to move the extension member 142 to the desired position.
  • the button may be connected to a cable mechanism that may engage an element connected to a locking pin to move the handle 140 to the correct position for the user.
  • the gripping portion 144 may be secured to, and extend perpendicularly from, the extension member distal end 142A at an angle between approximately 0 and 15 degrees relative to vertical. In one embodiment, the gripping portion 144 may be secured to the extension member 142 via a bracket 136. In another embodiment, the gripping portion 144 may be secured via one or more hinges 137 or ball joint (e.g., FIG. 3A ) for maximum rotation.
  • the handle 35 may be configured to tilt along the x-z plane (e.g., toward and away from the user) and rotate about the y-z plane (e.g., left and right of the user).
  • a button (e.g., button 144A) may be provided on the handle gripping portion 144 to release the hold of the gripping portion 144 on the extension member 142.
  • the user may press the button 144A and move the gripping portion 144 to the desired position.
  • the handle 140 may alternately be realized to provide additional or alternative benefits to the user.
  • Various mechanisms may lock the handle 140 in the desired position.
  • the grip 144 may and extension member 142 may be equipped with respective threading. To move the grip 144, the grip 144 may be "unscrewed” and rotated into the desired position, and then rotated in the opposite direction to lock the grip 144 in place.
  • the leg 150 telescopically engages with the substantially vertical tubular member 110 of the main body 105.
  • the leg 150 may be equipped with one or more quick release connectors 152 (or other appropriate fastening mechanism) which may interact with corresponding apertures 112 formed in the substantially vertical tubular member 110.
  • the quick release connectors 152 may be provided at various positions along the leg 150 (e.g., at the top of the leg 150, near the middle of the leg 150, etc., as shown in FIG. 4 ) to allow for maximum height adjustment.
  • the quick release connector 152 may be pressed in by the user (or the person aiding the user) and the leg 150 moved in and out of the tubular member 110 until the desired height is reached.
  • the leg 150 may be inserted as far as possible into the tubular member 110 to minimize the footprint of the crutch 100.
  • the foot 160 may extend from the leg 150 and may be configured to provide a means for efficiently and comfortably contacting the ground.
  • a person's foot moves in a heel-to-toe manner when walking.
  • prior art crutches often come with a rubber end that is perfectly flat. While the rubber allows for some flexibility to move with the person, the natural tendency of the foot is to be completely flat on the ground.
  • the foot 160 may include a neck 162 having at least one mechanical fastener (such as a quick release connector 166) formed thereon, and a hollowed annular member 164 extending downwardly from the neck 162.
  • the neck 162 of the foot 160 may be received into the end of the leg 150 such that the mechanical fastener 166 engages with an aperture 154 formed in the leg 150 to secure the foot 160 thereto. Therefore, it shall be understood that the foot 50 may be interchangeable.
  • the foot 160 may be formed of flexible plastic, such as acrylonitrile butadiene styrene (ABS), which may allow for slight compression of the annular member 164 of the foot 160 as forced is placed on the crutch 100, thereby providing additional shock-absorption benefits.
  • ABS acrylonitrile butadiene styrene
  • Different strength materials may alternatively be utilized in order to accommodate a range of weights. Due to the annular nature of the foot 160, the crutch 100 may move in a more natural way across the ground, as the foot 160 may be able to emulate the movement of a human's foot as it travels across the ground.
  • the hollowed annular member 164 may be covered with treading 168 for gripping. Since the foot 160 may be interchangeable due to the ability to remove the foot 160 from the end of the leg 150, various feet may be provided, each being configured for a specific situation. For example, there are different tread styles that are beneficial depending on the weather. Therefore, one interchangeable foot 50 may be equipped with a tread design suitable for everyday use. Other interchangeable feet 50 may be for indoor use, use in the rain, ice and/or snow. Additionally, other types or shapes of feet may also be desirable. For example, there may be situations in which an off-the-shelf crutch foot may be desirable. Furthermore, carbon-fiber feet may be desirable where the user wishes to use the crutches 100 in an athletic manner. Still further types of feet that may be incorporated onto the crutch 100 include a tripod or a quad foot which may increase the stability of the crutch 100.
  • an opening may be formed in the bottom rim of the hollowed annular member 164, and the top rim of the hollowed annular member 164 may be equipped with a pin.
  • the force of the user's weight on crutch 100 may cause the foot 160 to compress slightly, causing the pin to protrude through the opening, and into the ground. It may be understood that a foot 160 having a pin would not be desirable on hard surfaces, such as concrete or asphalt.
  • the foot 160 may be equipped with a cover that slides into place over the foot 160 upon activation of a trigger.
  • the trigger may be located, for example, on the handle 140 of the crutch 100, and the user may activate the trigger, causing the cover to move into place over the foot 160. The trigger may then be pushed again to move the cover off the foot 160, or to separate the cover from the foot 160 entirely.
  • FIG. 7 illustrates another embodiment of a crutch 200 which is substantially similar to embodiment 100 except as shown and/or described herein, or as would be inherent. Further, those skilled in the art will appreciate that the embodiment 100 (and thus embodiment 200) may be modified in various ways, such as through incorporating all or part of any of the various described embodiments, for example. For uniformity and brevity, reference numbers between 200 and 299 may be used to indicate parts corresponding to those discussed above numbered between 100 and 199, though with any noted or described deviations.
  • the arm rest 224 may be pivotally connected to the main body 205 and/or the leg 250 via a hinged connection 270.
  • the arm rest 224 may thus be rotatable from about 0 to 135 degrees relative to horizontal, as illustrated.
  • the main body 205 may be modified such that an opening is formed therein to receive the arm rest 224.
  • the leg 250 may include an angled portion 253, as shown, to provide shock absorbing benefits to the crutch 200. Accordingly, the leg 250 may be formed from any material sufficient to allow the leg 250 to slightly flex and subsequently return to its original position.
  • the crutch 200 may be configured such that a button, for example, on the handle 240, allows the user to easily change the position of the arm rest 224. This may be particularly useful when the user is, for example, ascending or descending stairs.
  • FIG. 8 illustrates another embodiment of a crutch 300 which is substantially similar to embodiment 100 except as shown and/or described herein, or as would be inherent. Further, those skilled in the art will appreciate that the embodiment 100 (and thus embodiment 300) may be modified in various ways, such as through incorporating all or part of any of the various described embodiments, for example. For uniformity and brevity, reference numbers between 300 and 399 may be used to indicate parts corresponding to those discussed above numbered between 100 and 199, though with any noted or described deviations.
  • the leg 350 may be a single straight leg tube.
  • the main body 305 may include a single substantially vertical tubular member 310 for interacting with the leg 350, and an arm rest support 318.
  • the arm rest support 318 may be fixed to the substantially vertical tubular member 310 at an angle of between approximately 0 to 15 degrees relative to horizontal.
  • a cradle 325 may be received into the arm rest support 325, and a handle 240 may extend from the arm rest support 318 as described above.
  • FIGs. 10 and 11 illustrate another embodiment 400, comprising two or more crutches as described herein to form a walker.
  • the walker 400 is described with reference to the use of crutches according to the embodiment 100.
  • any of the crutches 100, 200, 300 described herein may alternately, or additional be incorporated into embodiment 400 as appropriate.
  • two crutches 100 may be fastened together to form a walker 400.
  • the crutches 100 may be attached together via a bracket 480 ( FIG. 10 ).
  • the bracket 480 may be secured to each of the respective crutches 100 with a mechanical fastener, such as a screw.
  • each individual crutch 100 may be equipped with means for receiving an end of a structural rod member 485.
  • the crutches 100 may be placed in parallel positions, and the structural rod member 485 may be received by the crutches 100 and secured in position to form the walker 400.
  • the feet 470 of the crutches 100 may be elongated.
  • the walker 400 may include four crutches 100, secured together via brackets 480 and/or structural rod members 485 in an open square configuration.
  • Small casters 471 may additionally be placed in the corners (e.g., at the ends of the elongated feet, at each foot, etc.) for increased maneuverability.
  • a pedometer may be housed inside the device (for example, in the main body 105) to track activity levels.
  • the pedometer may be in wireless communication with, for example, a smart phone or other tracking device.
  • Other electronic modules or multipurpose modulus may be included to measure and provide information on other physiological parameters, such as blood-pressure and heart-rate monitors, as well as means for tracking number of calories burned.
  • Still additional metrics that may be tracked include speed, points of stress, number of minutes the crutch is used per day, et cetera. The data may be relevant for developing tools for managing the user's health and for maximizing the life of the crutch.
  • each crutch 100 may be equipped with a means for snapping, locking, or otherwise attaching pairs of crutches 100 together for ease of carrying the crutches 100.
  • magnets may be provided in the main body 105 of each crutch 100 such that, when positioned together, the crutches 100 stick together.
  • a first crutch 100 may be equipped with a hook, and a second crutch 100 equipped with means for engaging with the hooks, such that the crutches 100 may be attached for easy transportation.
  • Other attachment means may additionally, or alternately, be appropriate for connecting individual crutches together.
  • FIGs. 12-19 illustrating alternative embodiments of a crutch 500 which is substantially similar to embodiment 100 except as shown and/or described herein, or as would be inherent. Further, those skilled in the art will appreciate that the embodiment 100 (and thus embodiment 500) may be modified in various ways, such as through incorporating all or part of any of the various described embodiments, for example. For uniformity and brevity, reference numbers between 500 and 599 may be used to indicate parts corresponding to those discussed above numbered between 100 and 199, though with any noted or described deviations.
  • the crutch 500 includes a main body 505, a leg 550, and a foot 560. Similar to the main body 105, the main body 505 includes an arm rest support 518, an arm rest 524 having a cradle 525 comprising an elbow cup 527. The arm rest 524 is optionally rotatably attached to the arm rest support 518 at a hinged connection 522. Bracing 529 extends over the cradle 525 to keep the user's arm in position within the cradle 525. A handle 540 extends from the arm rest support 518.
  • the main body 505 has a lower profile in comparison to the higher-profile main body 105.
  • the main body 105 includes a substantially vertical tubular member 110 and an angled portion 113 extending from a portion of the main body 105
  • the main body 505 is truncated at a connection point 507a.
  • the connection point 507a is positioned away from the handle 540 towards the elbow cup 527.
  • the connection point 507a includes first and second openings 511 and 512, respectively.
  • the first opening 511 ( FIG. 15 ) is formed into a bottom edge 508 of the connection point 507a.
  • the second opening 512 may be formed into a front face 509 of the connection point 507a.
  • the openings 511 and 512 are configured to receive the leg 550 as described in greater detail below.
  • a back end 507b of the main body, comprising the elbow cup 527 may be cut out, e.g., in a half-moon shape ( FIG. 15 ).
  • the cutout provides clearance for the user's arm in the event that the user's arm is extended.
  • the bracing 529 which extends over the cradle 525, keeps the user's arm in position within the cradle 525.
  • the bracing 529 may funnel inward in the direction of the handle 540. Accordingly, the user's elbow may be comfortably extended such that the user's arm is straightened while the user's forearm is maintained in position within the cradle 525.
  • the leg 550 optionally includes a first angled section 551 and a second vertical section 552, as shown in at least FIG. 12 .
  • the first and second sections may have a unitary configuration (i.e., are integrally formed of a single material).
  • the second vertical section 552 is configured to receive a third section 553 which may be, but need not be, separate from the first and second sections 551 and 552 respectively.
  • the third section 553 may include a quick release connector 555 (similar to quick release connector 152).
  • the quick release connector 555 may engage with apertures formed in the second vertical section 552 to lengthen and shorten the crutch 500 as needed by the user.
  • the first angled section 551 may be angled between about 0 and 45 degrees from vertical. In an embodiment, the angle may be about 15 degrees from vertical. In one embodiment, the angle in the first angled section 551 may be in a front-to-back orientation, as seen in FIG. 12 .
  • the leg 550 engages with the main body 505 via the openings 511 and 512.
  • a first configuration illustrated in FIGs. 14-15
  • the leg 550 is inserted into the opening 511.
  • the leg 550 is inserted into the opening such that the first angled section 551 is angled toward the handle 540, and the second vertical section 552 is substantially vertically linear with the back end 507b of the main body 505, as shown in FIG. 14 .
  • the main body 505 is substantially parallel to the ground, as illustrated in FIG. 12 .
  • the leg 550 is inserted into the opening 512.
  • the leg 550 may be rotated in order to insert it into the opening 512.
  • the main body 505 is angled downward towards the ground surface, as shown in FIG. 16 .
  • the user may switch from the first configuration to the second configuration or vice versa.
  • the user may simply remove the leg 550 from the respective opening 511 or 512, position the leg 550 around such that the angle of the leg 550 is appropriate for the desired position of the main body 505, and insert the leg 550 into the other opening 512 or 511.
  • the user changes the configuration of the crutch 500, the user completely removes the leg 550 from contact with the main body 505. Contact is then reestablished when the leg 550 is reinserted into the desired opening 511 or 512.
  • the legs 550 may include one or more quick-release connects (or other mechanical faster) to engage with a respective aperture 511 or 512 in the main body 505 to maintain the respective leg 550 in position.
  • the openings 511 and 512 may include a locking mechanism, such as a quick release connector, gasket, a lever-locking mechanism, or the like, for maintaining the main body 505 in position on the leg 550.
  • the leg 550 has the locking mechanism which engages with corresponding structure on the main body 505 to maintain the main body 505 in connection therewith.
  • the legs 550 may be held in position via a frictional fit with the respective opening 511 or 512.
  • the leg 550 is equipped with structure, e.g., a cap, an angled ramp, which operably interfaces with the locking mechanism on the main body 505 to secure the leg 550 to the main body 505.
  • the main body 505 comprises a single quick-release connect that engages with the leg 550 when the leg 550 is inserted into either the opening 511 or the opening 512.
  • Corresponding openings in the leg 550 ensure that the leg 550 is correctly inserted. For example, an opening in a first side of the leg 550 may engage with the quick-release connect when the leg 550 is inserted into opening 511.
  • An opening in a second side of the leg 550 may engage with the quick-release connect when the leg 550 is inserted into the opening 512.
  • the openings in the respective first and second sides of the leg 550 need not be on the same horizontal plane.
  • FIG. 20 illustrates a set of legs 650 angled in a side-to-side orientation.
  • the legs 650 may be curved or otherwise oriented away from a center point of the user. The angle here allows the respective legs 650 to provide additional support to the user, as the legs 650 extend away from the side of the user's body. Additionally, the configuration maintains the user's arms in a comfortable position near the body, while the legs 650 of the crutch 500 provide the support.
  • the legs 650 may additionally include an angled portion similar to angled portion 551 to allow the main body 505 to attach to the legs 650 as described herein. Alternately, the legs 650 may be used with the main body 105.
  • the legs 650 may include a substantially vertical portion to which the main body 105 attaches similar to embodiment 100 as described herein. However, the legs 650 may be angled as shown in order to provide increased stability to the user.

Landscapes

  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Pain & Pain Management (AREA)
  • Veterinary Medicine (AREA)
  • Rehabilitation Tools (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Manipulator (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (13)

  1. Krücke (500), umfassend ein Bein (550) und einen Hauptkörper (505), wobei der Hauptkörper (505) das Folgende umfasst:
    einen Armstützenträger (518) mit einem vorderen Ende und einem hinteren Ende, wobei das vordere Ende eine Öffnung (512) aufweist, die in einer Vorderseite (509) davon ausgebildet ist; und
    einen Griff (540), der sich vom vorderen Ende des Armstützenträgers nach außen erstreckt, dadurch gekennzeichnet, dass
    das Bein (550) in der Öffnung des vorderen Endes des Armstützenträgers aufgenommen wird, wobei das Bein einen ersten angewinkelten Abschnitt (551) und einen zweiten im Wesentlichen vertikalen Abschnitt (552) umfasst, wobei der erste angewinkelte Abschnitt und der zweite im Wesentlichen vertikale Abschnitt eine einheitliche Konfiguration aufweisen, wobei der erste angewinkelte Abschnitt in der Öffnung im vorderen Ende aufgenommen wird, und
    wobei sich der Griff nicht von der Öffnung im vorderen Ende, in der das Bein aufgenommen wird, erstreckt.
  2. Krücke nach Anspruch 1, wobei der erste angewinkelte Abschnitt in einer Orientierung von vorne nach hinten angewinkelt ist.
  3. Krücke nach Anspruch 2, wobei der Winkel zwischen ungefähr 0 und 45 Grad bezüglich der Vertikalen beträgt.
  4. Krücke nach Anspruch 1, wobei das hintere Ende des Hauptkörpers eine Ellbogenschale (527) zur Aufnahme eines Ellbogens eines Benutzers umfasst.
  5. Krücke nach Anspruch 4, wobei die Ellbogenschale einen halbkreisförmigen Ausschnitt über dem Ellbogen des Benutzers umfasst.
  6. Krücke nach Anspruch 1, wobei der Armstützenträger ferner eine Armstütze (524) umfasst, wobei die Armstütze gelenkig mit dem Armstützenträger verbunden ist.
  7. Krücke nach Anspruch 1, wobei der erste Abschnitt eine angewinkelte Rampe zur selektiven Verbindung mit einem Arretierungsmechanismus im Hauptkörper umfasst.
  8. Krücke nach Anspruch 7, wobei das Bein einen dritten Abschnitt umfasst, der in einer Seite-an-Seite-Orientierung angewinkelt ist.
  9. Krücke nach Anspruch 1, wobei der Hauptkörper ferner eine zweite Öffnung (511) an einem unteren Rand (508) des vorderen Endes umfasst.
  10. Krücke nach Anspruch 9, wobei das Bein selektiv wechselbar von einer der ersten Öffnung und der zweiten Öffnung aufgenommen wird, wobei:
    in einer ersten Konfiguration das Bein in der ersten Öffnung des Hauptkörpers aufgenommen wird; und
    in einer zweiten Konfiguration das Bein in der zweiten Öffnung des Hauptkörpers aufgenommen wird.
  11. Krücke nach Anspruch 1, wobei:
    der Hauptkörper ferner einen unteren Rand (508) umfasst, der eine zweite Öffnung (511) bildet;
    eine Armstütze (524) gelenkig mit dem hinteren Ende des Armstützenträgers verbunden ist;
    das Bein mit dem Hauptkörper funktionsfähig verbunden ist;
    in einer ersten Konfiguration das Bein in einer der ersten und zweiten Öffnungen aufgenommen wird;
    in einer zweiten Konfiguration das Bein in der anderen der ersten und zweiten Öffnungen aufgenommen wird; und
    das Bein selektiv zwischen den ersten und zweiten Konfigurationen umwandelbar ist.
  12. Krücke nach Anspruch 11, wobei mindestens der Hauptkörper und/oder das Bein eine Arretierungsstruktur zur temporären Befestigung des Hauptkörpers am Bein in der ersten Konfiguration und der zweiten Konfiguration aufweist.
  13. Krücke nach Anspruch 1 oder 12, wobei ein Fuß (560) auswechselbar im Bein aufgenommen wird.
EP18857196.2A 2017-09-12 2018-09-11 Krücke Active EP3681458B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762557237P 2017-09-12 2017-09-12
PCT/US2018/050413 WO2019055392A1 (en) 2017-09-12 2018-09-11 CRUTCH

Publications (3)

Publication Number Publication Date
EP3681458A1 EP3681458A1 (de) 2020-07-22
EP3681458A4 EP3681458A4 (de) 2021-06-09
EP3681458B1 true EP3681458B1 (de) 2023-12-06

Family

ID=65723824

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18857196.2A Active EP3681458B1 (de) 2017-09-12 2018-09-11 Krücke

Country Status (4)

Country Link
EP (1) EP3681458B1 (de)
JP (1) JP6836691B2 (de)
TW (1) TWI780223B (de)
WO (1) WO2019055392A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112155953A (zh) * 2020-10-27 2021-01-01 厦门铠胜医疗器械有限公司 一种便携式拐杖及其使用方法
TWI763139B (zh) * 2020-11-24 2022-05-01 陳乃慶 手杖握柄
WO2022112955A1 (en) * 2020-11-30 2022-06-02 Össur Iceland Ehf Crutch with a contoured grip and a forearm support
JP7445072B1 (ja) 2023-10-12 2024-03-06 玲 久保寺 歩行補助杖及び歩行補助杖用の足部

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03292956A (ja) * 1990-04-09 1991-12-24 Toshiaki Miyoshi 身体障害者用の杖
US5329954A (en) * 1992-12-23 1994-07-19 Ohta Inc. Stick-like means for physically handicapped person
DE19539963C2 (de) * 1995-10-27 1999-04-15 Penn Richard Jun Gehstock
US5555904A (en) * 1995-12-29 1996-09-17 Stockwell; Walter E. Forearm crutch
US5711334A (en) * 1996-12-18 1998-01-27 Roux; Christian Ambulatory aid
EP2334277B1 (de) * 2008-08-06 2017-01-04 Colin Patrick Albertyn Krücke
ES2431414B1 (es) 2012-05-22 2014-07-28 Ignacio MAÑERO LOJENDIO Muleta con apoyo inclinado de antebrazo y con amortiguación
EP3277243B1 (de) * 2015-04-02 2020-05-27 Mobility Designed, Inc. Krücke

Also Published As

Publication number Publication date
TW201919508A (zh) 2019-06-01
EP3681458A4 (de) 2021-06-09
EP3681458A1 (de) 2020-07-22
WO2019055392A1 (en) 2019-03-21
TWI780223B (zh) 2022-10-11
JP2020533139A (ja) 2020-11-19
JP6836691B2 (ja) 2021-03-03

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