WO2015013560A1 - Prothèse de membre à emboîture ajustable - Google Patents

Prothèse de membre à emboîture ajustable Download PDF

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Publication number
WO2015013560A1
WO2015013560A1 PCT/US2014/048102 US2014048102W WO2015013560A1 WO 2015013560 A1 WO2015013560 A1 WO 2015013560A1 US 2014048102 W US2014048102 W US 2014048102W WO 2015013560 A1 WO2015013560 A1 WO 2015013560A1
Authority
WO
WIPO (PCT)
Prior art keywords
socket
adjustment mechanism
band
rigid portion
axial direction
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.)
Ceased
Application number
PCT/US2014/048102
Other languages
English (en)
Inventor
Brian Daryl KALUF
Joshua Cory WILLIAMS
Samuel Lloyd KARNS
Ryan David FREED
Molly Ann RUSSELL
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.)
Clemson University
Original Assignee
Clemson University
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 Clemson University filed Critical Clemson University
Publication of WO2015013560A1 publication Critical patent/WO2015013560A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/78—Means for protecting prostheses or for attaching them to the body, e.g. bandages, harnesses, straps, or stockings for the limb stump
    • A61F2/80—Sockets, e.g. of suction type
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/78—Means for protecting prostheses or for attaching them to the body, e.g. bandages, harnesses, straps, or stockings for the limb stump
    • A61F2/7812—Interface cushioning members placed between the limb stump and the socket, e.g. bandages or stockings for the limb stump
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A61F2002/5016—Prostheses not implantable in the body adjustable
    • A61F2002/5026—Prostheses not implantable in the body adjustable for adjusting a diameter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A61F2002/5016—Prostheses not implantable in the body adjustable
    • A61F2002/5027—Prostheses not implantable in the body adjustable for adjusting cross-section
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/50—Prostheses not implantable in the body
    • A61F2/78—Means for protecting prostheses or for attaching them to the body, e.g. bandages, harnesses, straps, or stockings for the limb stump
    • A61F2002/7881—Means for protecting prostheses or for attaching them to the body, e.g. bandages, harnesses, straps, or stockings for the limb stump using hook and loop-type fasteners

Definitions

  • the present subject matter relates generally to a prosthetic limb, or more particularly to a prosthetic limb having an adjustable socket.
  • Prosthetic limbs have long been used by persons with one or more amputated limbs to assist in every day activities.
  • prosthetic limbs include a socket, a shaft extending from the socket, and a prosthetic hand or foot as appropriate.
  • the socket is configured to receive a user's residual limb and typically defines a fixed internal volume.
  • a volume of the user's residual limb may fluctuate.
  • the volume fluctuations of the user's residual limb i.e., swelling and contracting
  • the user In order to accommodate these residual limb volume changes, the user must generally add or remove an amount or thickness of prosthetic socks on the user's residual limb.
  • the user is required to doff the prosthetic (i.e., remove the prosthetic), remove one or more prosthetic socks, and don the prosthetic again (i.e., put the prosthetic back on).
  • the same adjustment process is used with traditional sockets to accommodate a decrease in the residual limb's volume (except the prosthetic socks are added instead of removed). This process may be time consuming, inconvenient, and/or embarrassing for the user.
  • a socket for a prosthetic limb that is capable of
  • a socket for a prosthetic limb that is capable of adjustment along a length of the socket would be particularly useful.
  • a socket for a prosthetic limb includes a body extending along the axial direction.
  • the body includes a rigid portion defining a first end and a second end and extending around a first side of the body in the circumferential direction between the first end and the second end.
  • the body also includes a flexible portion extending around a second side of the body in the circumferential direction.
  • the flexible portion is attached to the rigid portion proximate to the first end of the rigid portion and proximate to the second end of the rigid portion.
  • the socket also includes a cavity defined by the flexible portion and the rigid portion, the cavity defining a volume and being configured to receive a residual limb of a user.
  • the socket also includes a first adjustment mechanism attached to one or both of the rigid portion and the flexible portion. The first adjustment mechanism defines an effective length, wherein adjustment of the effective length by the user increases or decreases the volume of the cavity by interacting with the flexible portion of the body.
  • a socket in another exemplary embodiment of the present disclosure, is provided, the socket defining an axial direction and a circumferential direction.
  • the socket includes a body extending along the axial direction.
  • the body includes a rigid portion extending along the circumferential direction between a first end and a second end, and a flexible portion attached to the rigid portion proximate to the first end of the rigid portion and proximate to the second end of the rigid portion.
  • the socket also includes a cavity defined by the flexible portion and the rigid portion, the cavity defining a volume and being configured to receive a residual limb of a user.
  • the socket also includes a first adjustment mechanism defining an effective length between a first end and a second end, the first and second ends being attached the flexible portion of the body. Adjustment of the effective length of the first adjustment mechanism by the user increases or decreases the volume of the cavity by interacting with the flexible portion of the body.
  • FIG. 1 provides a front perspective view of a prosthetic limb 100 in accordance with an exemplary embodiment of the present disclosure
  • FIG. 2 provides a rear perspective view of the exemplary prosthetic limb 100 of Fig. 1 ;
  • FIG. 3 provides a rear view of the exemplary prosthetic limb 100 of Fig. 1 ;
  • FIG. 4 provides a side view of the exemplary prosthetic limb 100 of Fig. 1 ;
  • FIG. 5 provides a top view of the exemplary prosthetic limb 100 of Fig. 1 .
  • Fig. 1 provides a front perspective view of a prosthetic limb 100 in accordance with an exemplary embodiment of the present disclosure.
  • the prosthetic limb 100 is configured to receive or fit over a residual limb 12 of a user 10.
  • the prosthetic limb 100 is configured for a user 10 having a leg 14 amputation below a knee 16 of the user's leg 14, i.e., a transtibial amputation.
  • the prosthetic limb 100 may instead be configured for a user 10 having, for example, a leg 14 amputation above the knee 16, i.e., a transfemoral amputation, or alternatively for a user having an arm 18 amputation, either above or below an elbow 20 of the user's arm 18, i.e., a transhumeral or a transradial amputation, respectively.
  • a leg 14 amputation above the knee 16 i.e., a transfemoral amputation
  • an arm 18 amputation either above or below an elbow 20 of the user's arm 18, i.e., a transhumeral or a transradial amputation, respectively.
  • the prosthetic limb may be configured for a user having an amputation through an ankle (i.e., a symes amputation), an amputation through the knee 16 (i.e., a knee disarticulation amputation), an amputation through the hip (i.e., a hip disarticulation amputation), an amputation through the wrist (i.e., a wrist disarticulation amputation), or an amputation through the elbow (i.e., an elbow disarticulation amputation).
  • an ankle i.e., a symes amputation
  • an amputation through the knee 16 i.e., a knee disarticulation amputation
  • an amputation through the hip i.e., a hip disarticulation amputation
  • an amputation through the wrist i.e., a wrist disarticulation amputation
  • an elbow disarticulation amputation i.e., an elbow disarticulation amputation
  • Fig. 2 provides a rear perspective view of the exemplary prosthetic limb 100 of Fig. 1
  • Fig. 3 provides a rear view of the exemplary prosthetic limb 100 of Fig. 1
  • the prosthetic limb 100 defines an axial direction A, a radial direction R, and a circumferential direction C.
  • the prosthetic limb 100 includes a socket 102, an extension 104, and a prosthetic extremity 106, which for the exemplary embodiment depicted is a prosthetic foot.
  • the socket 102 includes a body 108 extending generally along the axial direction A, the body 108 including a rigid portion 120 and a flexible portion 122.
  • the rigid portion 120 defines a first end 130 and a second end 132 and extends around a first side 1 16 (Fig. 1 ) of the body 108 in the circumferential direction C between the first and second ends 130, 132.
  • the flexible portion 122 extends around a second side 1 18 of the body in the circumferential direction C.
  • the rigid portion 120 and flexible portion 122 together define a cavity 1 10 configured to receive and fit over the residual limb 12 of the user 10 (Fig. 1 ).
  • the socket 102 or more particularly, the cavity 1 10 defined by the body 108 of the socket 102, defines a volume V (see Fig. 5) that is adjustable so as to
  • the extension 104 is attached to a bottom end 1 12 of the body 108 and extends generally along the axial direction A towards the prosthetic extremity 106.
  • the prosthetic extremity 106 is bolted on to an axial end 1 14 of the extension 104, although in other exemplary embodiments, the prosthetic extremity 106 may be attached in any other suitable manner, or alternatively may be made integrally with the extension 104.
  • the extension 104 and prosthetic extremity 106 of the exemplary prosthetic limb 100 depicted in the Figs are by way of example only.
  • the prosthetic limb 100 may have any other suitable extension 104 and/or prosthetic extremity 106.
  • the extension 104 may have a shape configured to emulate the look of a leg or an arm of the user 10 and, if configured for an above the knee/ elbow amputee, may also include a joint configured to emulate a knee or elbow of the user.
  • the first side 1 16 corresponds to an anterior portion of the body 108 (see Fig. 1 ) and the second side 1 18 corresponds to a posterior portion of the body 108.
  • the first side 1 16 of the body 108 is at least partially comprised of the rigid portion 120 and the second side 1 18 of the body 108 is at least partially comprised of the flexible portion 122.
  • the rigid portion 120 may be comprised of one or more generally rigid materials, such as a carbon fiber reinforced polymer material, that provides rigid support for the socket 102.
  • the flexible portion 122 may be comprised of one or more generally flexible materials, such as a modified low-density polyethylene, that allows for the socket 102 to better conform to the residual limb 12 of the user 10.
  • the rigid portion 120 may additionally, or alternatively, be comprised of any other suitable rigid material, such as, for example, steel, aluminum, or other fiber reinforced polymer.
  • any other suitable rigid material such as, for example, steel, aluminum, or other fiber reinforced polymer.
  • the flexible portion 122 may additionally, or alternatively, be comprised of any other suitable flexible material, such as, for example, any other ductile polymer material or a fabric material.
  • any other suitable flexible material such as, for example, any other ductile polymer material or a fabric material.
  • rigid may refer to a material configured to deform no more than 10% under normal operating stresses
  • flexible may refer to a material configured to deform more than 10% under normal operating stresses.
  • first side 1 16 of the socket 102 is depicted as the anterior portion and the second side 1 18 of the socket 102 is depicted as the posterior portion, in other exemplary embodiments, the first and second sides 1 16, 1 18 may be reversed, or alternatively, may be rotated such that, for example, the first side 1 16 corresponds to a right side of socket 102 and the second side 1 18 corresponds to a left side of the socket 102.
  • the rigid portion 120 extends along an entire length of the body 108 in the axial direction A, and also extends along the circumferential C direction between the first end 130 and the second end 132.
  • the first and second ends 130, 132 extend generally along the axial direction A, and as may be better seen in Fig. 5, the rigid portion 120 extends at least about 180 degrees around a circumference of the body 108 in the circumferential direction C.
  • the flexible portion 122 includes a first fin 124, a second fin 126, and a liner 128.
  • the first fin 124 is attached to the rigid portion 120 proximate to the first end 130 of the rigid portion 120.
  • the second fin 126 is attached to the rigid portion 120 proximate to the second end 132 of the rigid portion 120.
  • the first and second fins 124, 126 extend generally along the circumferential direction C around the second side 1 18 of the body 108 from the first and second ends 130, 132, respectively.
  • the first and second fins 124, 126 are sized such that an axially extending gap 134 is defined between the first and second fins 124, 126.
  • the liner 128 is positioned in the cavity 1 10 adjacent to the first fin 124 and the second fin 126 to bridge the gap 134 extending therebetween.
  • first and second fins 124, 126 are slidably positioned adjacent to the liner 128.
  • the liner 128 may therefore allow for a more even distribution of pressure on the residual limb 12 of the user 10 when the prosthetic limb 100 is being worn.
  • the rigid portion 120 and flexible portion 122 depicted in Figs. 2-3 are by way of example only, and that in other exemplary embodiments, the prosthetic limb 100 may have any other suitable configuration of rigid portion 120 and/or flexible portion 122.
  • the first and second fins 124, 126 may not define the gap 134, and instead the fins 124, 126 may be configured to overlap one another.
  • the flexible portion 122 may not include the liner 128.
  • the fins 124, 126 may be attached at any suitable location to the rigid portion 120, and may not necessarily be attached proximate to the ends 130, 132.
  • the rigid portion 120 and flexible portion 122 may have any other suitable size relative to one another.
  • the rigid portion 120 extend about 160 degrees around a circumference of the body 108, about 170 degrees around a circumference of the body 108, about 190 degrees around a circumference of the body 108, or about 200 degrees around a circumference of the body 108.
  • the rigid portion 122 may extend less than about 160 degrees around a circumference of the body 108, or more than about 200 degrees around a circumference of the body 108.
  • Fig. 4 provides a side view of the exemplary prosthetic limb 100 of Fig. 1
  • Fig. 5 provides a top view of the exemplary prosthetic limb 100 of Fig. 1
  • the body 108 defines an inner surface 136 comprising a first band 160 of contiguous materials extending generally along the circumferential direction C of the socket 102.
  • the first band 160 defines an effective length Bi along the inner surface 136.
  • circumferential direction C refers to a direction configured to correspond in shape to a circumference of the user's residual limb, and may not necessarily be a circular direction.
  • a portion of the body 108 of the socket 102 may be molded after the residual limb 12 of the user 10 and therefore the body 108 may define a non-circular inner surface 136.
  • contiguous materials refers to a plurality of materials, wherein the plurality of materials either overlap or are positioned adjacent to one another, such that there is no gap, slot, or cavity defined between adjacent materials. For example, in the embodiment of Figs.
  • the first band 160 of contiguous materials refers to the following contiguous sequence of materials along the inner surface 136: the rigid portion 120, which overlaps with the first fin 124, which in turn is overlapped by the liner 128, which in turn overlaps the second fin 126, which then overlaps the rigid portion 120 once again (Fig. 5).
  • the inner surface 136 is configured to directly contact the residual limb 12 of the user 10 (or one or more socks or other liners being worn by the user 10) when in use.
  • the socket 102 of the prosthetic limb 100 may further include an additional liner or other padding or cushioning (not shown) along the inner surface 136 configured to contact the residual limb 12 of the user 10 to increase an amount of comfort for the user 10.
  • the exemplary socket 102 further includes a first adjustment mechanism 138 attached to the body 108, i.e., one or both of the rigid portion 120 and the flexible portion 122.
  • the first adjustment mechanism 138 defines a first end 140 and a second end 142, each attached to the body 108 and spaced from one another along the circumferential direction C.
  • the first adjustment mechanism 138 further defines an effective length l_i (Fig. 3) between the first end 140 and the second end 142 of the first adjustment mechanism 138.
  • the first adjustment mechanism 138 is adjustable by the user 10 such that the user 10 may increase or decrease the effective length l_i . Adjustment of the effective length l_i of the first adjustment mechanism 138 by the user increases or decreases the volume V of the cavity 1 10 (Fig. 5) by interacting with the flexible portion 122 of the body 108.
  • the first adjustment mechanism 138 is attached to the flexible portion 122.
  • the first adjustment mechanism 138 includes a ratcheting buckle 146 positioned at the first end 140 and attached to the first fin 124, and includes a strap 144 positioned at the second end 142 and attached to the second fin 126.
  • the strap 144 extends from the second end 142 through the buckle 146 and is releasable attached to the buckle 146.
  • the strap 144 may include a plurality of ridges (not shown) configured to interact with the ratcheting buckle 146.
  • the ratcheting buckle 146 may pivot about a base end such that an opposite end moves radially outward from the body 108 of the socket 102 and tightens the strap 144, i.e., reduces the effective length Li of the adjustment mechanism 138.
  • the strap 144 may be loosened by pressing a release button or lever (not shown), or by moving the ratcheting buckle 146 to a certain release position.
  • the first adjustment mechanism 138 is provided by way of example only and that in other exemplary embodiments, any other suitable first adjustment mechanism 138 may be provided.
  • the first adjustment mechanism 138 may comprise a length of hook and loop fasteners, such as those marketed under the VELCRO brand, a snap-type adjustment mechanism, one or more of strings configured to be tied between the first and second ends 140, 142, or any other suitable adjustment mechanism.
  • the first and second ends 140, 142 of the first adjustment mechanism 138 are depicted positioned
  • the first and second ends 140, 142 may be spaced from one another along the circumferential direction C and positioned at different positions along the axial direction A.
  • the term "spaced,” when used in conjunction with the first and second ends 140, 142 of the first adjustment mechanism 138 means that the first and second ends 140, 142 are positioned far enough away from one another to allow for a suitable amount of adjustment of the first adjustment mechanism 138.
  • the first adjustment mechanism 138 and the first band 160 of contiguous materials are each positioned at a first position Ai along the axial direction A. Accordingly, increasing or decreasing the effective length Li of the first adjustment mechanism 138 correspondingly increases or decreases the effective length Bi of the first band 160 of contiguous materials.
  • the user 10 may therefore adjust the effective length Bi of the first band 160 of contiguous materials by adjusting the first adjustment mechanism 138. Further, adjusting the effective length Bi of the first band 160 correspondingly adjusts the volume V defined by the cavity 1 10 in the body 108 of the socket 102 (Fig. 5).
  • tightening of the first adjustment mechanism 138 brings the first and second ends 140, 142 closer together, and in turn, bring the first fin 124 and second fin 126 closer together— lessening a width of the gap 134 as well.
  • the effective length Bi of the band 160 is decreased, decreasing the volume V of the cavity 1 10.
  • loosening the first adjustment mechanism 138 i.e., increasing the effective length l_i
  • the effective length Bi of the first band 160 is also increased, increasing the volume V of the cavity 1 10.
  • the first and second fins 124, 126 are slidably positioned adjacent to the liner 128, such that the flexible portion 122 does not fold over or crease when the first adjustment mechanism 138 is tightened, increasing comfort for the user.
  • the exemplary prosthetic limb 100 of the present disclosure may therefore allow for the socket 102 to accommodate an increase or decrease in a volume of the residual limb 12 of the user 10 without requiring the user 10 to completely remove the prosthetic limb 100 and, e.g., add or remove layers of prosthetic socks to their residual limb.
  • An adjustment to the first adjustment mechanism 138 may be made relatively quickly while the prosthetic limb 100 is being worn by the user 10, allowing the user 10 to, e.g., continue an activity with minimal interruption.
  • the adjustment mechanism 138 may also allow the user 10 to easily loosen the socket 102 in certain situations without removing the prosthetic limb 100. For example, the user 10 may easily loosen the socket 102 when the user 10 is sitting.
  • Such a configuration may promote fluid volume restoration in the residual limb 12 of the user and may promote increased airflow and breathability for comfort for the user 10.
  • the first band 160 may provide a substantially consistent pressure along a circumference of the residual limb 12 of the user 12 adjacent to the first band 160. Such a consistent pressure may be applied regardless of the effective length Li of the first adjustment mechanism 138 and the effective length Bi of the first band 160. Such a configuration may further reduce an amount of discomfort on the user 10. As used herein, “substantially” refers to being within a 10% margin of error.
  • the exemplary prosthetic limb 100 may further allow for a plurality of independent adjustment zones spaced along the axial direction A of the socket 102.
  • Such a configuration may provide an increased amount of adjustability in the volume V of the cavity 1 10 (Fig. 5), and an increased amount of adaptability to particular areas of fluctuations in the volume of the residual limb 12 of the user 10.
  • the inner surface 136 of the body 108 additionally includes a second band 162 of contiguous materials extending generally along the circumferential direction C, and a third band 164 of contiguous materials also extending generally along the
  • the second band 162 defines an effective length B 2 and is positioned at a second axial position A 2 along the axial direction A.
  • the third band 164 defines an effective length B 3 and is positioned at a third axial position A 3 along the axial direction A.
  • the second and third bands 162, 164 are depicted in phantom in Fig. 4 and the labeling of the second and third bands 162, 164 is omitted from Fig. 5 for clarity.
  • the socket 102 of the exemplary prosthetic limb 100 depicted in the Figs further includes a second adjustment mechanism 148 and a third adjustment mechanism 150.
  • the second adjustment mechanism 148 defines an effective length L 2 between a first end 152 and second end 154, the first and second ends 152, 154 each attached to the body 108.
  • the third adjustment mechanism 150 defines an effective length L 2 between a first end 152 and second end 154, the first and second ends 152, 154 each attached to the body 108.
  • adjustment mechanism 150 defines an effective length L 3 between a first end 156 and second end 158, the first and second ends 156, 158 each also attached to the body 108. More particularly, for the exemplary embodiment depicted, the second and third adjustment mechanisms 148, 150 are each attached to the flexible portion 122.
  • the second adjustment mechanism 148 is positioned at the second position A 2 along the axial direction A and the third adjustment mechanism 150 is positioned at the third axial position A 3 along the axial direction A.
  • the second and third adjustment mechanisms 148, 150 are each configured in the same manner as the first adjustment mechanism 138 to allow the user 10 to adjust the effective lengths L 2 , L 3 .
  • the second adjustment mechanism 148 is controlled, e.g., adjusted, independently from the first and third adjustment mechanisms 138, 150
  • the third adjustment mechanism 150 is controlled, e.g., adjusted, independently from the first and second adjustment mechanisms 138, 148.
  • the second adjustment mechanism 148 Given the position of the second adjustment mechanism 148 and of the second band 162 of contiguous materials along the axial direction A (i.e., at the second position A 2 ), the second adjustment mechanism 148 is configured to increase or decrease the effective length B 2 of the second band 162 of contiguous materials. Similarly, given the position of the third adjustment mechanism 150 and of the third band 164 of contiguous materials along the axial direction A (i.e., at the third position A 3 ), the third adjustment mechanism 150 is configured to increase or decrease the effective length B 3 of the third band 164 of contiguous materials.
  • the three axial positions Ai, A 2 , A 3 are each spaced apart from one another along the axial direction A.
  • the various axial positions Ai , A 2 , A 3 may be spaced approximately two (2) inches or less apart from one another, approximately four (4) inches or less apart from one another, or approximately six (6) inches or less apart from one another.
  • Such a configuration may allow for three (3) distinct regions of adjustability along the axial direction A. Accordingly, such a configuration may provide the user 10 greater adjustability of the circumferential size of the cavity 1 10 along the axial direction A of the socket 102.
  • the exemplary prosthetic limb 100 depicted in the Figs includes three adjustment mechanisms 138, 148, 150 and three respective bands B 2 , B 3 , in other exemplary
  • the prosthetic limb may have any other suitable number of adjustment mechanisms and respective bands.
  • the socket 102 may include a single adjustment mechanism and the inner surface 136 of the body 108 of the socket 102 may define a single band of contiguous materials.
  • the inner surface 136 of the body 108 of the socket 102 may define a single band of contiguous materials.
  • the socket 102 may include two (2) adjustment mechanisms, four (4) adjustment mechanisms, or any other suitable number of adjustment mechanisms spaced along the axial direction A from one another.
  • the inner surface 136 of the body 108 of the socket 102 may include a corresponding number of bands of contiguous materials spaced in a similar manner as the adjustment mechanisms along the axial direction A.
  • the adjustment mechanisms 138, 148, 150 may each have the same configuration, or one or more of the adjustment mechanisms 138, 148, 150 may have any other suitable configuration and/or position. Additionally, or alternatively, one or more of the adjustment mechanisms 138, 148, 150 may be controlled along with one or more of the other adjustment mechanisms 138, 148, 150.
  • the socket 102 depicted in the Figs may allow for changes in the volume V in the cavity 1 10 of up to 12%, such as up to 10%, or up to 8%.
  • a change in volume V may correspond to a change in circumferential adjustment, such as a change in the effective length Bi of the first band 160, equivalent to a diameter change of up to about 20 mm, such as up to about 18 mm, such as up to about 15 mm.
  • the socket 102 may allow for a change in volume V greater than 12% and may allow for a circumferential adjustment equivalent to a diameter change greater than about 20 mm.

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  • Health & Medical Sciences (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

La présente invention concerne une emboîture pour une prothèse de membre qui comprend un corps s'étendant dans une direction axiale et définissant une cavité configurée pour recevoir la partie restante d'un membre d'un utilisateur. L'emboîture comprend en outre un mécanisme d'ajustement fixé au corps configuré pour ajuster un volume de la cavité pour s'adapter à une augmentation ou une réduction du volume de la partie restante d'un membre de l'utilisateur.
PCT/US2014/048102 2013-07-26 2014-07-25 Prothèse de membre à emboîture ajustable Ceased WO2015013560A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361858681P 2013-07-26 2013-07-26
US61/858,681 2013-07-26

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DE102010019843A1 (de) * 2010-05-07 2011-11-10 F. Gottinger Orthopädie-Technik GmbH Prothesenschaft
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US20100318195A1 (en) * 2007-07-26 2010-12-16 Thomas Kettwig Orthopedic interface
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WO2019083988A1 (fr) * 2017-10-23 2019-05-02 Trifusion Devices Inc. Procédé d'impression tridimensionnelle et pièce
CN111432754A (zh) * 2017-10-23 2020-07-17 特里弗森设备有限公司 三维打印方法和部件
US11806256B2 (en) 2017-10-23 2023-11-07 Essentium Ipco, Llc Three dimensional print method and part

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