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WO2003034904A9 - Raccord a combinaison de preforme/d'adaptateur pour prothese, et procede de fabrication - Google Patents

Raccord a combinaison de preforme/d'adaptateur pour prothese, et procede de fabrication

Info

Publication number
WO2003034904A9
WO2003034904A9 PCT/US2002/034050 US0234050W WO03034904A9 WO 2003034904 A9 WO2003034904 A9 WO 2003034904A9 US 0234050 W US0234050 W US 0234050W WO 03034904 A9 WO03034904 A9 WO 03034904A9
Authority
WO
WIPO (PCT)
Prior art keywords
preform
adapter
resin
socket
woven
Prior art date
Application number
PCT/US2002/034050
Other languages
English (en)
Other versions
WO2003034904A2 (fr
WO2003034904A3 (fr
Inventor
Douglas A Taylor
Original Assignee
Douglas A Taylor
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 Douglas A Taylor filed Critical Douglas A Taylor
Priority to AU2002353870A priority Critical patent/AU2002353870A1/en
Publication of WO2003034904A2 publication Critical patent/WO2003034904A2/fr
Publication of WO2003034904A3 publication Critical patent/WO2003034904A3/fr
Publication of WO2003034904A9 publication Critical patent/WO2003034904A9/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • B29C70/443—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding and impregnating by vacuum or injection
    • 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
    • A61F2/5044—Designing or manufacturing processes
    • A61F2/5046—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, finite-element analysis or CAD-CAM techniques
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B29C70/22—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
    • B29C70/222—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure the structure being shaped to form a three dimensional configuration
    • 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
    • A61F2/5044—Designing or manufacturing processes
    • A61F2/5046—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, finite-element analysis or CAD-CAM techniques
    • A61F2002/5053—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, finite-element analysis or CAD-CAM techniques using a positive or a negative model, e.g. casting model or mould
    • 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
    • A61F2/5044—Designing or manufacturing processes
    • A61F2002/5055—Reinforcing prostheses by embedding particles or fibres during moulding or dipping, e.g. carbon fibre composites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/753—Medical equipment; Accessories therefor
    • B29L2031/7532—Artificial members, protheses

Definitions

  • the present invention pertains to prosthetic devices and more particularly
  • Every endoskeletal type prosthesis has a residual limb interface, or
  • the socket includes an adapter to which the prosthetic limb is attached.
  • the socket transfers the stresses of walking and lifting from the patient to the
  • Sockets are custom measured and fabricated
  • a socket preform is typically assembled by cutting combinations of woven, knitted and braided fiber textiles and tying and/or tackifying (adhesive tacking)
  • Adapters come in three general forms: a flat plate with standardized metric four
  • tetrahedron with a dome and four wings.
  • Each design includes large "wings" to
  • Fibers have to be aligned so the axis of stress is arranged down the length of the
  • Fibers should also have a small diameter and be tightly packed together.
  • Fibers should be capable of mechanically and chemically bonding to the resin as well, and the resin should be characterized by a coefficient of expansion and/or
  • Socket fiber volume of between about 50-70% is also preferred.
  • sockets Since forces inevitably stray from the fiber plane and despite current fiber and resin composition and methods of manufacture, sockets
  • Knitted cloths from nylon and fiberglass are generally unsuitable for use in high performance composites. Their fiber orientation is looping, their fiber content is low and adhesion between fiber and resin is poor.
  • Carbon fiber braids are also widely used in composites. Unfortunately, these filamentary materials are manufactured in constant diameter tubings that
  • Some prosthetic sockets may vary in diameter several inches in a short distance. Fortunately, the smallest diameter is usually at the socket adapter
  • the axial plane is up to 70% weaker than it is along the fiber axis as a result.
  • the perform-adapter interface typically includes unevenly cut and
  • the adapter may be poorly positioned to uniformly
  • the interface may include weak
  • the present invention relates to a method and apparatus for producing a
  • the socket for a prosthetic wearer, and to the socket itself.
  • the socket comprises a
  • the present invention relates to a method for
  • the preform includes criss-crossing fibers oriented in at least two axial directions.
  • the present invention relates to a socket
  • an adapter having at least one resin port formed therethrough and a
  • composite shell having an inner surface and an outer surface and connected to the
  • the composite shell extends generally cylindrically away from the
  • the inner surface of the socket is custom-molded to conform to the
  • the adapter protrudes through the outer surface of the composite shell.
  • the composite shell further includes a
  • the present invention relates to a
  • jig for producing a composite residual limb socket including a first substantially
  • L-shaped hollow tubular member having a first first end and a first second end; a second substantially L-shaped hollow tubular member having a second first end
  • gripping member operationally connected to the fifth first end; and a rotation fixture connected between the jig and a stationary reference support structure.
  • the jig may be rotated at least about 180 degrees relative to the reference support structure and a workpiece may be interference fit between the first and second
  • the first second end is slideably connected into the second
  • the second second end is slideably connected into the third first end;
  • third second end is slideably connected into the fourth first end; and the fifth second end is connected in pneumatic communication to the first tubular member
  • the present invention relates to an
  • the adapter for use with a composite socket.
  • the adapter includes a substantially
  • the connector portion is
  • the resin port is adapted to transfer
  • the present invention relates to a
  • preform for use with a composite socket including a first set of parallel fibers
  • first, second and third axes intersect at acute angles relative to each other and are triaxially interwoven into a socket shape conforming to a residual limb shape of a
  • One object of the present invention is to provide an improved socket.
  • Fig. 1 is a schematic view of a first embodiment of a jig for forming a
  • Fig. 2 is a schematic view of the resin vial portion of the embodiment of Fig.
  • Fig. 3A is a side elevation view a lamination dummy.
  • Fig 3B is a top plan view of the dummy of Fig 3 A.
  • Fig. 4 is a partial schematic view of the jig of Fig 1 including a microprocessor
  • Fig. 5 is side sectional view of an adapter of a second embodiment of the
  • Fig. 6 A is a top plan view of an adapter of a third embodiment of the present
  • Fig. 6B is a side sectional view of the adapter of Fig. 6 A.
  • Fig. 7 A is a top plan view of an adapter of a fourth embodiment of the present
  • Fig. 7B is a side sectional view of the adapter of Fig. 7A.
  • Fig. 8 A is a top plan view of an adapter of a fifth embodiment of the present invention.
  • Fig. 8B is a side sectional view of the adapter of Fig. 8 A.
  • Fig. 9 is a view of the adapter of Fig. 8B including a first adapting receiver inserted thereinto.
  • Fig. 10 is a view of the adapter of Fig. 8B including a first lamination dummy inserted thereinto.
  • Fig. 11 is a top schematic view of a fiber preform woven with an adapter
  • Fig. 12A is a top plan view of an adapter of a seventh embodiment of the present invention.
  • Fig. 12B is a side sectional view of the adapter of Fig. 12A
  • Fig 13 is a side schematic view of the embodiment of Fig. 11 including a
  • Fig. 14A is a first perspective view of a braider of an eighth embodiment of the present invention.
  • Fig 14B is a partial perspective view of the braider of Fig 14 A.
  • Fig. 14C is a partial side elevation view of the braider of Fig. 14C.
  • Fig. 14D is a schematic illustration of the braider of Fig. 14A.
  • Fig. 15A is a side elevation view of a biaxially woven preform produced on the braider of Fig. 14A.
  • Fig. 15B is a side elevation view of a triaxially woven preform produced on the braider of Fig. 14A.
  • Fig 16A is an enlarged partial side elevation view of the preform of Fig. 15B showing the triaxial weave pattern.
  • Fig. 16B is a schematic view of a triaxial weave pattern.
  • Fig. 17 is a schematic view of a biaxial weave pattern.
  • Fig 18 is a partial cut-away perspective view of a socket of a ninth embodiment of the present invention.
  • Fig. 19 is a diagramatic view of the method of using the jig of Fig. 1.
  • the residual limb is crucial to the performance and comfort of the prosthetic limb.
  • a bad interface means a bad limb.
  • the socket includes two major components, the composite material and the adapter.
  • adapters come in three general designs, flat plate with standardized metric four hole square pattern, three-winged threaded
  • the composite material includes a fiber-based textile preform that is
  • thermoplastic or thermosetting resin any convenient matrix materials that may be applied in liquid form to substantially
  • the preform is
  • the selected resin material may include any convenient fibers that are characterized by the high strength and stiffness properties and are wetably compatible with the selected resin material
  • the preform is preferably biaxially woven and more preferably triaxially woven (such as is described in U.S. Patent No.
  • the composite is formed by hand-controlled vacuum-assisted resin
  • Resin injection may be performed by hand pressure and stringing to force resin into the lay-up, such that
  • resin is advanced through the fiber preform by vacuum and stringing process, or
  • FIG. 1 illustrates one embodiment of the present invention, a system 5 for
  • the system 5 includes a laminating/alignment
  • the jig 10 includes rotation fixture 24 attached thereto, such
  • the jig 10 is rotatable through at least 180 degrees such that transfers of
  • prosthetic alignment can be performed and the partially completed socket
  • the assembly can be inverted for gravity assisted laminating.
  • the jig 10 includes several degrees of freedom, which are indexed such that multiple transfers can be
  • the jig 10 is slideable up and down via a
  • the jig 10 is also fully adjustable to allow alignment of the upper and lower attachment points.
  • the alignment jig 10 is preferably fabricated from hollow-square or round
  • a vacuum fitting 28 is
  • piece of detachable round tubing 10a defines the first vacuum path and holds the
  • top section 10b and lower section 10c of the jig are hermetically sealed to create the vacuum/pressure path at the other end of the jig.
  • Tubing 10a is a part of lower section 10c.
  • Upper section 10b comprises vertical portion 10b', horizontal portion 10b" and vertical sections
  • all tube sections are slideably connected to each other, such that for any given connection of tubes, one tube end is sized to slide
  • Section 10b'" further includes pneumatic connection ports 51a and 51b, to which positive pressure 52 and
  • vacuum 54 hoses may be attached.
  • the ports 51a and 51b are in pneumatic
  • Section 10a extends from section 10c and terminates in vacuum port 31. Vacuum port 31
  • the jig is adapted to hold a workpiece 13 between sections 10a and
  • the workpiece may comprise a mold 22 over which a
  • preform 16/adapter 11 combination has been positioned. As will be discussed in
  • this configuration allows the amount of pressure applied to
  • the workpiece 13 to be varied during the lamination process to inject and then withdraw resin in the lay-up.
  • the workpiece 13 includes a mold 22, which is a positive three-
  • the mold 22 is covered by a preform 16, which is preferably shaped to form-fittingly cover the mold 22.
  • the preform 16 includes at least one, and preferably multiple, layers of criss-crossing fibers.
  • each layer may include layers of biaxially woven fibers (with each layer preferably having a
  • layers of triaxially woven fibers may be interspersed with the woven layers
  • the fibers may also be any material that can tailor the properties of the preform as desired.
  • the fibers may also be any material that can tailor the properties of the preform as desired.
  • the fibers may also be any material that can tailor the properties of the preform as desired.
  • the fibers may also be any material that can be any material that can be used to tailor the properties of the preform as desired.
  • the fibers may also be any material that can be used to tailor the properties of the preform as desired.
  • Figs. 14A-14D illustrate a preferred embodiment weaving apparatus or braider 100.
  • the braider 100 includes a plurality of spools 110. Each spool is
  • the mandrel 120 may be a dummy cylinder or may be a mold 22
  • generally cylindrical preform 16 is typically woven using a biaxial fiber weaving
  • Triaxially woven preforms are generally limited to weaving directly to shape, such as over a positive mold 22, since
  • triaxially woven material may be only slightly distorted, if at all, by the
  • FIGs 16 A and B illustrate typical triaxial weave
  • One aspect of the invention includes an automated fiber-preforming
  • the instant invention includes the process and the preform made
  • the stacking of the fiber in the third axis through the thickness is very important to the quasi-anisotropic strength characteristics of the resultant preform.
  • the present invention includes the process of wrapping a band of filaments around a rotating mandrel.
  • a horizontally moving carriage is oriented
  • the fiber band is continuous except for
  • the fiber over the adapter is tied and wrapped over the exterior of the part maintaining a grip on the part until laminating.
  • Another aspect of the invention includes triaxial and biaxial filament
  • the fiber bundles are fed, they are crossed over and under each other creating a
  • woven tubing Approximately half of the fiber carriers are rotating clockwise and the other half are rotating counterclockwise. Additionally, a third set of fibers can be applied in the axial or "machine" direction, i.e. along the major
  • preforms may be braided onto the adapter or tied on after the braiding process. Alternately, they may be braided directly over the custom socket mold integrating
  • major axis of the prosthesis/limb such as 45, 30 and 15 degrees, may be
  • Figs 5-10 and 12A and B illustrate various adapter 11 designs, each to be
  • One common characteristic of the adapters 11 of the present invention is the presence of resin ports extending therethrough for the transport of resin from the resin vial 50, through a dummy
  • the vial 50 may inherently include a dummy feature.
  • the adapters 11 are formed of structural materials, and more preferably the adapters are formed of titanium, stainless steel and/or aluminum to
  • the adapter 11 may be of any convenient design
  • preform 16 based composites yield lighter and more readily adjustable modular
  • the socket preform/adapter design integrates resin flow ports in the adapter 11 to facilitate resin flow and wet-out as well.
  • the metal adapter 11 as shown in Fig. 5 is positioned between the internal layer 12 and external layer 14 of composite,
  • the adapter 11 as shown in Fig. 5 has a tetrahedral insert 11a that is threadably received or by dress-fitting
  • the insert 11a is preferably
  • Adapter 11 also includes an
  • Insert lie has ports lie' to introduce resin into the inner preform 12.
  • adapter 11 is provided with resin ports lib' to allow resin to reach
  • FIGs. 6A and 6B present a top plan view and cross-section
  • the inner insert lie is shown in isolation in Figs. 12A and 12B, comprising an axial portion 40 that extends through the central bore 11a' of
  • adapter dome housing lib shown in Fig. 6B. Again, the function of insert lie is to secure or sandwich the inner and outer layers of the fiber preform at the distal
  • the cross-configuration of insert lie, as well as of adapter housing lib can take a different shape, such as curved or spherical.
  • Figs. 7 A and 7B show a four-hole adapter 60, preferably formed from
  • hole rotatable adapters four-hole knees, four-hole pyramid adapters or the like.
  • Adapter 60 has an inner curved surface 64, outer curved surface 66 and outer vertical portion 68 of the adapter are also reinforced with the socket composites.
  • the outer curved surface 66 preferably has a radius slightly smaller than that of
  • Adapter 60 is preferably provided with four longitudinal
  • FIG. 8 and 9 Another aspect of the invention shown in Figs. 8 and 9 provides a large- hole rotatable adapter 80 having a central opening 81 and an exposed horizontal
  • This adapter 80 is preferably formed from aluminum and has a slot 84 cut from the outer edge to the central opening 81. There is a
  • adapter 80 is also preferably provided with a slightly concave lower surface 83. As shown in Fig. 9, adapter 80 is intended to frictionally or threadably receive in
  • Fig. 10 shows large-hole adapter 80 coupled with a lamination dummy 92 to prevent the
  • An alignment/laminating fixture 10 shown in Fig. 1 is used to perform
  • a reusable rigid vial 50 (Fig. 2) that has a regulator and a three-way (or an automated valve system)
  • stopcock (not shown) above the reservoir.
  • an automated stopcock (not shown) above the reservoir.
  • valve system may be used instead of a manual stopcock.
  • a mechanical ram may be used to urge the flow of the resin.
  • the resin vial 50 is clamped over a plastic lamination dummy
  • dummy 18 has a central axis port 19 shown in Figs. 3A and 3B.
  • the lamination dummy may also be provided with additional injection ports to
  • the vial may be detachably secured to the
  • the adapter 11 by itself.
  • the dummy or vial is locked onto the adapter 11 with screws or a clamp.
  • the flexible bagging film (PVA bag 17) receives resin
  • the proximal section of the mold is preferably under vacuum. A high degree of vacuum is preferred.
  • the bleeder is a wad of porous
  • One embodiment is essentially manually
  • embodiment employs an automated method, which is illustrated diagrammatically
  • a timer /valve system 30 is used to automate
  • Both vacuum sources are preferably fed from the same pump. All
  • the fiber preform 16 is pulled over the mold 22 after
  • a second PNA bag 17 is then pulled over the mold with the
  • the resin vial 50 is attached to the adapter via lamination dummy 18 or directly to the
  • the mixed resin is poured into the vial 50 and the vial is closed and sealed by an O-ring, clamp or tape.
  • the stopcock is manually opened, allowing
  • Hoses 52 and 54 may deliver pressure or create a vacuum via hoses 52 and 54, respectively.
  • Hoses 52 and 54 may be attached directly to vial 50 as shown in Fig. 2, or attached to the jig 10 as shown in Fig. 1.
  • Timing and valving is controlled from the microprocessor 32 as well. Preset timing and
  • a manual override is preferably included for emergency
  • a preferred embodiment includes a manifold operably connected to the system for performing
  • the computer automated lamination cycle will now be described as illustrated in Fig 19.
  • the vacuum pump shown schematically in Fig. 4
  • the vacuum pump is powered up shortly after the program is selected and will hold until the first PNA bag, adapter/preform and second PNA bag are applied.
  • the resin is introduced into the vial 50 which is then attached to the resin inlet.
  • the vial can be filled with resin while detached and then the filled vial 50 may be attached to the lamination dummy or, in some instances, directly to the adapter 11, 60 or 80.
  • Vial 50 should be formed from a non-stick substance so that the laminating resin will not adhere to it. Nylon 66 or a like thermoplastic is preferred.
  • System 30 (shown in Fig. 4) is preferably provided with a keypad interface or connected to an external computer in order for the user to operate and/or program the system.
  • Pressure is applied for a predetermined time. If there is a significant drop in pressure, an alarm will sound, and the positive pressure will be interrupted. A leak in the PNA bag or an exhaustion of resin supply are examples that may trigger such
  • the resin vial will pause (i.e. the positive pressure will temporarily stop),
  • the mold and preform may be inverted if desired so that gravity can facilitate resin
  • the vacuum pump is deactivated. The user can then power down the unit or
  • Figs. 11 and 13 show the fiber preform 16 woven with an adapter 11 and
  • the fiber is
  • the fiber may be
  • the fiber path "b" may cross
  • the adapter is preferably equipped with resin injection ports that extend radially through the adapter, such as ports lib' as shown in Fig. 5.
  • Fig. 18 illustrates one embodiment of a socket 130 made according to the
  • the socket 130 is generally conical and includes an
  • the adapter 11 protruding from an area generally on or near its apex.
  • the adapter 11 protruding from an area generally on or near its apex.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Transplantation (AREA)
  • Biomedical Technology (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Manufacturing & Machinery (AREA)
  • Prostheses (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

L'invention concerne un raccord utilisé pour le raccordement d'une prothèse à la partie restante d'un membre amputé. Ce raccord comprend un adaptateur qui présente au moins un orifice de résine traversant, et un matériau composite généralement conique qui s'étend depuis l'adaptateur. Le matériau composite comprend également une matrice de résine et une préforme multicouche à configuration de tissage triaxiale intégrée dans la matrice. La préforme est tissée directement sur un moule positif du membre résiduel. L'adaptateur est généralement placé au sommet du matériau composite susmentionné. L'adaptateur ressort par le matériau composite.
PCT/US2002/034050 2001-10-25 2002-10-24 Raccord a combinaison de preforme/d'adaptateur pour prothese, et procede de fabrication WO2003034904A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002353870A AU2002353870A1 (en) 2001-10-25 2002-10-24 Socket preform/adapter combination for prosthetic device and method of manufacture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US35427701P 2001-10-25 2001-10-25
US60/354,277 2001-10-25

Publications (3)

Publication Number Publication Date
WO2003034904A2 WO2003034904A2 (fr) 2003-05-01
WO2003034904A3 WO2003034904A3 (fr) 2003-10-30
WO2003034904A9 true WO2003034904A9 (fr) 2004-05-06

Family

ID=23392585

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/034050 WO2003034904A2 (fr) 2001-10-25 2002-10-24 Raccord a combinaison de preforme/d'adaptateur pour prothese, et procede de fabrication

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Cited By (1)

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US10842653B2 (en) 2007-09-19 2020-11-24 Ability Dynamics, Llc Vacuum system for a prosthetic foot

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DE102006021857A1 (de) 2006-05-09 2007-11-15 Otto Bock Healthcare Ip Gmbh & Co. Kg Verfahren zum Gießen eines Prothesenschaftes
CN108749035B (zh) * 2018-06-19 2023-11-21 河北工业大学 一种假肢接受腔的制备方法

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US3596314A (en) * 1968-11-26 1971-08-03 Hitco Apparatus for forming a densified fibrous article
US3954931A (en) * 1974-04-12 1976-05-04 The United States Of America As Represented By The Secretary Of The Navy Process for making a molded valve housing for a prosthetic limb
SE423485B (sv) * 1978-07-27 1982-05-10 Torsten Lars Evert Pettersson Sett och anordning for tillverkning av underbensproteser
US5263990A (en) * 1991-12-04 1993-11-23 Handal Jady G Prosthetic with bar reinforced shell
US5314492A (en) * 1992-05-11 1994-05-24 Johnson & Johnson Orthopaedics, Inc. Composite prosthesis
US5718925A (en) * 1995-11-15 1998-02-17 Ossur Hf. Apparatus for making a prosthesis socket
US6267787B1 (en) * 1999-07-21 2001-07-31 Ohio Willow Wood Company Prosthetic attachment locking assembly having prosthetic attachment lock

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10842653B2 (en) 2007-09-19 2020-11-24 Ability Dynamics, Llc Vacuum system for a prosthetic foot

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WO2003034904A3 (fr) 2003-10-30
AU2002353870A1 (en) 2003-05-06

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