Use Of Anatomy In Making A Mold Or Using Said Mold Patents (Class 264/DIG30)
  • Patent number: 6153139
    Abstract: A method of making an external protective and cosmetic covering for use on an endoskeletal or exoskeletal prosthesis, that has toes included in it. The skin is produced on a mold having toes cut into it. The mold is narrower and undersized in the actual foot prosthesis. The mold is modified to have toes cut into it with the definition of the toes greatly exaggerated to emphasize the normal contours and definitions of the natural nail and natural nail bed.
    Type: Grant
    Filed: September 14, 1998
    Date of Patent: November 28, 2000
    Inventor: Stuart Marquette
  • Patent number: 6142881
    Abstract: A precise, anatomically configured finger insert for the holes of a bowling ball conforms to the exact size and shape of the bowler's fingers prior to the insert being set into the pre-drilled holes of the bowling ball. The inserts are formed from a soft, resilient elastomer that favors rather than resists the full spectrum of all finger shapes. The insert is vented to eliminate the vacuum effect produced when the fingers are very rapidly removed from a tightly confined space, the venting allowing for ease of finger extraction upon release of the bowling ball, the venting spaces in plurality also allowing the soft deformable elastomer to accommodate finger size change secondary to swelling by pushing into the venting spaces. The method of production of the finger hole inserts yields inserts that are unique and personal for each individual bowler, yet capable of being mass produced.
    Type: Grant
    Filed: May 7, 1998
    Date of Patent: November 7, 2000
    Inventor: Ronald J. Lakusiewicz
  • Patent number: 6136027
    Abstract: An external custom prosthetic device is created and positioned upon a patient such that an area to be covered is matingly engaged with a product that is a simulacrum of the part desired to be replaced due to reversed imaging, by laser photography or laser mapping. A method for creating a silicone based prosthetic, process for generating same with or without an air pocket disposed therein, and products by these processes are likewise taught.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: October 24, 2000
    Assignee: Otto Bock U.S., Inc.
    Inventor: D. K. Jackson
  • Patent number: 6083442
    Abstract: An impression of a portion of a human body is made by forming a preform of tandard profile of polymeric material with shape memory that is substantially rigid at ambient temperature and flexible and elastic at a higher working temperature, bringing the preform to that working temperature, and placing the preform on that body portion. After cooling of the preform to below the working temperature, the preform is removed from the body portion and a positive model is cast from the preform. The preform is then returned to the working temperature without physical constraint, whereupon the preform resumes its standard profile and so can be re-used a number of times. The polymeric composition comprises at least one elastomer and one polycaprolactone diluted in a composition of solvents that dissolve the polymers. The elastomer is polyurethane. The composition of solvents comprises dimethyl-formamide to dissolve the polyurethane, toluene to dissolve the polycaprolactone, and methylethylketone as a buffer.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: July 4, 2000
    Assignee: Societe des Etablissements Hilaire Gabilly Orthopedie Podologie Niort
    Inventor: Daniel Gabilly
  • Patent number: 5980576
    Abstract: A method of providing prosthetic sockets (30) for a patient's residual limb (21). While the residual limb (21) is swollen with post-trauma edema (22-25), a resin-impregnated temporary shell forming sock (52) is placed onto the edema-swollen residual limb (21). The resin is activated to cause it to harden into a temporary prosthetic shell (30), but prior to hardening of the resin, the sock (52) is conformed to the patient's edema-swollen limb (21). After swelling of the residual limb (21) has substantially dissipated, a permanent prosthetic socket conforming to the patient's unswollen residual limb (22b-25c) is formed and the temporary prosthetic socket (30) is replaced with the permanent prosthetic socket. A temporary prosthetic socket (30) is also disclosed in which a resin-hardened temporary sock (52) is bonded to a socket liner (49) over a prosthetic attachment assembly (48) in a configuration substantially conforming to the patient's residual limb (21) when in an edema-swollen (22-25) condition.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: November 9, 1999
    Inventors: Peter M. Graf, Richard M. Stess
  • Patent number: 5980804
    Abstract: A method is provided of forming a cervical cap in situ, i.e., within a patient's body, which cap will substantially completely conform to the shape of the patient's cervix, allowing the cap to be left in place over an extended period of time. The method of the invention includes the steps of positioning a snugly fitting rim member around the patient's exocervix, mounting a shell member, having an aperture, onto the rim member such that the rim member, shell member and exocervix define a cavity, and injecting a curable material through the aperture to substantially fill the cavity. After the curable material is allowed to harden, the entire assembly is removed from the patient and the shell removed from the cured material.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: November 9, 1999
    Inventor: James P. Koch
  • Patent number: 5971729
    Abstract: A definitive socket for residual limb prosthetic use is formed in a single molding step by compressive pressure casting or molding a pre-formed, moldable, hardenable socket material over a residual limb and curing the socket material to a load-bearing hardened condition while it is maintained under peripheral compressive pressure against the residual limb and while the residual limb is tensioned in a distal direction during the casting process. The combination of pressure casting the socket material and applying tension to the residual limb in a distal direction while the socket material is curing results in forming a definitive socket that fits well to the residual limb after curing without substantial rectification. Pressure relief formations, socket coverings, and a prosthesis coupler may be compression molded simultaneously with the socket.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: October 26, 1999
    Assignee: Ossur hf
    Inventors: Ossur Kristinsson, Tryggvi Sveinbjornsson, Hilmar Br. Janusson, Gudni Ingimarsson
  • Patent number: 5950299
    Abstract: A device for making plaster memorabilia is provided including a pan for accepting a predetermined amount of plaster therein. As such, various body parts may be impressed therein prior to the plaster drying after which a plaster block is rendered. Also included is a frame assembly for receiving the plaster block therein. The frame and plaster block are adapted to be mounted on a wall such that the impressions may be displayed via an outboard end of the frame.
    Type: Grant
    Filed: February 12, 1998
    Date of Patent: September 14, 1999
    Inventor: Tomas R. Perez-Alderete
  • Patent number: 5945056
    Abstract: A method of making a surgical simulator comprises first and second mouldings which can be assembled together to form a simulation limb. The first moulding is in the form of a replaceable cartridge on which simulation surgical operations moulding can be performed. The second moulding is mounted on a supporting base and includes a cavity within which the first moulding can be located. A housing containing a pump assembly is mounted on the supporting base and the pump assembly is arranged to pump simulation blood through a simulation vein contained within said first moulding.
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: August 31, 1999
    Assignee: Simutech Limited
    Inventors: Ralph Paul Day, Aaron Sherman
  • Patent number: 5928673
    Abstract: An apparatus for neutralizing the leg of a person during the molding of an orthotic is disclosed. The apparatus includes a base, a movable standard supporting a knee caliper and ankle caliper. The knee caliper and ankle caliper have arms movable by a crank to center the knee and ankle on a plane extending through the orthotic. The calipers have height adjustments.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: July 27, 1999
    Inventors: Daniel M. Ryan, Eric Rzeppa
  • Patent number: 5885509
    Abstract: A prosthesis socket casting device includes a base member on which an elongated annular molding bladder is mounted, the bladder peripherally enclosing a generally centrally located casting area and extendable when inflated from the forward side of the base. The bladder is formed of a pliable, air impermeable, relatively non-stretchable sheet material enclosing, in cooperation with the base, an air chamber peripherally surrounding the casting area. The casting area includes an open residual limb receiving end and extends from such end to the base, and an inflation system for the bladder is provided. The casting device may be used in conjunction with a prosthesis suction socket that includes a tension member at its distal end connectable to the base member during a casting procedure. Moldable and settable prosthesis socket or other moldable casting material is placed over the suction socket and is compression molded by the inflated bladder while the casting material cures.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: March 23, 1999
    Assignee: Ossur HF
    Inventor: Ossur Kristinsson
  • Patent number: 5885622
    Abstract: The invention utilizes forced air heating in which heated air is fed through tubes to a mold or form shaped substantially like a human foot. The mold or form has apertures or holes which are patterned to provide heat to the insole and/or tongue, heel, counter, midfoot, arch, and toe box. The size of the holes can vary in size as can the quantity depending upon how much heat is needed by a specific area. Panels may be provided in the mold or form to regulate the amount of air flow to a given area. Where insoles are the main item being formed, the insole must be beveled before it is molded because the material has a tendency to expand to its original thickness upon heating. Beveling the edges of the insole before it is premolded prevents the insole from expanding around the edges when the insole is molded to a person's foot.
    Type: Grant
    Filed: May 8, 1996
    Date of Patent: March 23, 1999
    Inventor: Pete Daley
  • Patent number: 5879605
    Abstract: The invention provides a method for preforming soles which includes compressing a foot so as to push soft fat tissue masses of the foot on its underside and inner and outer lateral arches inward toward a top of the leg; making an accurate molding of the foot thus compressed by using material for making the molding which is capable of flowing into cavities which result from the compression of the foot and which is capable of filling the cavities; removing the foot from the molding; and placing a sole blank on a bottom of the molding, the blank preferably having been treated so as to be capable of being shaped by pressure from a foot on it; and pressing the foot, which is still compressed, onto the blank so as to shape it between an inner face of the foot and the bottom of the molding.
    Type: Grant
    Filed: March 19, 1997
    Date of Patent: March 9, 1999
    Assignee: Societe D'Importation De Diffusion Ou Distribution D'Articles De Sport S.I.D.A.S.
    Inventor: Loic David
  • Patent number: 5843483
    Abstract: An apparatus for forming a foot orthotic is provided including a housing for an inflatable bladder. The bladder is inflated with a hand held compressible bulb. A heat softened orthotic blank is positioned between a patient's foot and the bladder which is inflated to conform the blank to the bottom surface of the foot. The shaped blank is allowed to cool to render it nondeformable at room temperature.
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: December 1, 1998
    Assignee: Gleason's Orthotics, Inc.
    Inventors: Philip G. Theriault, Walter J. Subsick, Jr.
  • Patent number: 5824075
    Abstract: The breast appliance and method of making of the present invention is adaptive to a variety of situations ranging from a first embodiment where impressions of both breasts of a client are available for molding, a second embodiment where a single breast is available for molding, a third embodiment where a sensitive nipple or an augmentative breast appliance is to be formed, and a fourth embodiment where breast appliances are formed from a client having neither breast available for molding.If client's impression is made before surgery, a positive impression can be made directly from a negative mold. A molded silicone form or clay form is used to prepare a breast appliance front mold and a breast appliance back mold. Skin type nipple and breast skin silicone is first introduced into the mold before closure. After closure, a silicone gel is introduced into the cured skin silicone envelope, with removal of air and bubbles using an exit tube.
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: October 20, 1998
    Inventor: Janice Marie Thielbar
  • Patent number: 5804109
    Abstract: A method of fabricating an ear canal impression which includes the steps of (a) placing a covering on the tympanic membrane of a hearing-impaired person, (b) marking the junction between the bony and cartilaginous portions of the auditory canal, (c) introducing an ear canal impression material into the auditory canal, (d) and allowing the ear canal impression material to harden to form the ear canal impression whereby the ear canal impression includes an indentation on its surface corresponding to said marking is provided. The ear canal impression is then employed to fabricate an ear canal mold for a completely-in-canal hearing aid device. In this fashion, the hearing aid when placed in the auditory ear canal is assured to fit and rest snugly on the bony canal. This prevents the device from shifting away from the tympanic membrane and, therefore, reduces the opportunity for positive feedback and discomfort for the individual.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: September 8, 1998
    Assignee: ReSound Corporation
    Inventor: Rodney C. Perkins
  • Patent number: 5798062
    Abstract: The breast appliance and method of making of the present invention is adaptive to a variety of situations ranging from a first embodiment where impressions of both breasts of a client are available for molding, a second embodiment where a single breast is available for molding, a third embodiment where a sensitive nipple or an augmentative breast appliance is to be formed, and a fourth embodiment where breast appliances are formed from a client having neither breast available for molding.If client's impression is made before surgery, a positive impression can be made directly from a negative mold. A molded silicone form or clay form is used to prepare a breast appliance front mold and a breast appliance back mold. Skin type nipple and breast skin silicone is first introduced into the mold before closure. After closure, a silicone gel is introduced into the cured skin silicone envelope, with removal of air and bubbles using an exit tube.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: August 25, 1998
    Inventor: Janice Marie Thielbar
  • Patent number: 5772945
    Abstract: A composite material blank for an orthotic insert. The device is formed of layers of fiberglass and graphite fiber material. A first graphite fiber layer provides the overall structure with increased strength, while secondary graphite fiber reinforcement strips are arranged below the first and fifth rays of the foot to provide additional rigidity and control in these areas. The edges of the graphite fiber layers are recessed inwardly from the edges of the fiberglass layers so as to provide a graphite-free border which prevents cracks from propagating into the graphite fiber layers. The layers are bonded together by heat curing.
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: June 30, 1998
    Assignee: Northwest Podiatric Laboratory, Inc.
    Inventor: Dennis N. Brown
  • Patent number: 5718925
    Abstract: A definitive socket for residual limb prosthetic use is formed in a single molding step by compressive pressure casting or molding a pre-formed, moldable, hardenable socket material over a residual limb and curing the socket material to a load-bearing hardened condition while it is maintained under peripheral compressive pressure against the residual limb and while the residual limb is tensioned in a distal direction during the casting process. The combination of pressure casting the socket material and applying tension to the residual limb in a distal direction while the socket material is curing results in forming a definitive socket that fits well to the residual limb after curing without substantial rectification. Pressure relief formations, socket coverings, and a prosthesis coupler may be compression molded simultaneously with the socket.
    Type: Grant
    Filed: November 15, 1995
    Date of Patent: February 17, 1998
    Assignee: Ossur hf.
    Inventors: Ossur Kristinsson, Tryggvi Sveinbjornsson, Hilmar Br. Janusson, Gudni Ingimarsson
  • Patent number: 5707572
    Abstract: An apparatus for immobilizing and positioning the head, shoulder, and torso region of the human anatomy when in the prone position for radiographic examination or treatment. The device consists of a base board, a face support, a pair head side walls, a pair of shoulder walls, and a pair of body side walls. A foam mixture is applied to the upper surface of the base and the entire device is placed into a large flexible container or bag. A patient's head, shoulder and torso region are placed on the device in a prone position. The patient remains in a fixed position while the foam mixture expands around the patient's body and the apparatus. After a brief period of time, the foam sets or hardens and a mold or template is formed. This mold serves to immobilize the head, shoulder and torso region of the body when in a prone position during radiographic examinations and treatment as well as other procedures.
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: January 13, 1998
    Inventor: Jeffrey Vincent Kostich
  • Patent number: 5662942
    Abstract: A kit and method for easily and conveniently obtaining a fingerprint impression which is subsequently used to create an accurate three-dimensional fingerprint replication. The kit comprises at least one finger sleeve, a base material and a catalyst for forming an amount of impression material, and instructions for using the kit to obtain the fingerprint impression using the finger sleeve and the impression material. The invention also comprises a unique finger sleeve adapted for use with the kit to obtain a fingerprint impression.
    Type: Grant
    Filed: April 15, 1996
    Date of Patent: September 2, 1997
    Inventor: Anthony Kim, II
  • Patent number: 5593699
    Abstract: An apparatus for manufacturing form-fitting insoles, including two trays on the bottom of each of which a piece of load-deformable fibrous spongy material is placed; the material is impregnated with a foaming reagent preparation and is covered in its upper region with a piece of double-stretch fabric treated so as to be impermeable, on which the user places his feet until the reaction is completed. The trays extend from separate box-like structures which are mutually associable by virtue of a retention pivot that allows mutual rotations about a vertical axis from a side-by-side position so as to move apart, and vice versa, and allows translatory motions along the same axis.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: January 14, 1997
    Assignee: Sponsor S.n.c. di Grassi & C.
    Inventor: Silvano Grassi
  • Patent number: 5531954
    Abstract: A method for fabricating an individually adapted in-the-ear hearing aid shell with a battery compartment cast into the shell such that the door of the battery compartment is flush or slightly recessed in the portion of the shell that contacts the user's ear cavity.
    Type: Grant
    Filed: August 5, 1994
    Date of Patent: July 2, 1996
    Assignee: ReSound Corporation
    Inventors: Jorgen Heide, Ole R. Olsen
  • Patent number: 5527359
    Abstract: Described is an artificial mamma and a series of molds for producing the mamma, in which the mamma comprises a bag-like member which has as a skin a thick film member made of silicon rubber and interposing therein an elastic fabric as a core enclosing air internally, the thick film member being partially larger in thickness to provide a point where an air injection needle is inserted. The mold for producing the mamma can be constructed from ordinary materials and without the need for specialized technicians.
    Type: Grant
    Filed: March 7, 1995
    Date of Patent: June 18, 1996
    Assignee: Nakamura Brace Co., Ltd.
    Inventors: Toshiro Nakamura, Tetsuya Watanabe
  • Patent number: 5523040
    Abstract: A method and apparatus for making a custom resilient foam support for a human body from a foam block having first and second opposite sides. The method includes placing the first side of the foam against a plurality of individually adjusted supports which are movable towards the first side and placing a human body against the second side of the foam block. The supports are individually adjusted for compressing portions of the foam block for obtaining the desired support characteristics of the human body and cutting means cut the foam block along a plane between the supports and the body.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: June 4, 1996
    Assignee: Baylor College of Medicine
    Inventor: Thomas A. Krouskop
  • Patent number: 5503543
    Abstract: A prosthetic casting machine receives an amputated stump while a patient is standing so that a hard socket can be made based upon the shape of the stump when it is under load. The machine includes a brim for accommodating an above-the-knee stump or a retaining disc for below-the-knee stumps. A telescoping leg enables precise adjustment of the height of the machine to accommodate patients of differing heights. The patient's stump is inserted into a liner and the liner is coated with plaster before the stump is inserted into the machine. After insertion, while the patient is standing, compressed air is introduced into a space between a transparent flexible bladder and a transparent rigid cylinder so that a uniform pressure is applied to the plaster by the bladder. The transparent parts enable a prosthetist to observe the results of the pressurization so that corrective steps may be taken if the plaster is not evenly compressed.
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: April 2, 1996
    Inventor: Aldo A. Laghi
  • Patent number: 5454993
    Abstract: An apparatus for immobilizing and positioning the lower or inferior portion of the human for radiographic examination or treatment. The device consists of a framework made from a base board, a plurality of siderails, a foot board and a pair of leg support blocks. A foam mixture is applied to the upper surface of the baseboard and to the leg support blocks and the entire device is placed into a large flexible container or bag. A patient's inferior or lower body portion is placed on the device in a supine position with a leg support block supporting at least one of the legs. The patient remains in a fixed position while the foam mixture expands around the patient's body and the apparatus framework. After a brief period of time, the foam sets or hardens and a mold or template is formed. This mold serves to immobilize the lower portion of the body during radiographic examinations and treatment as well as other procedures.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: October 3, 1995
    Inventor: Jeffrey V. Kostich
  • Patent number: 5397361
    Abstract: A process of producing a cranial plate duplicating the dimensions of an excised portion of the cranium comprising, obtaining an excised portion of the cranium of a patient, preparing a three-dimensional impression of the excised portion in an impression material, removing the excised portion of the patient's cranium from the impression material to provide a mold cavity, and thereafter filling the cavity with a sterile resinous material which sets, and thereafter removing the set resinous material to form a plate duplicating the dimensions of the excised portion of the patient's cranium, and finally surgically installing the plate in the patient's cranium to replace the excised portion of the cranium earlier removed.
    Type: Grant
    Filed: June 23, 1993
    Date of Patent: March 14, 1995
    Assignee: Surgical Prosthetics Resource, Inc.
    Inventor: Dennis E. Clark
  • Patent number: 5376127
    Abstract: A light-weight cover or shield, having the appearance of, and contour of, a human limb, adapted/designed to surround the endoskeletal component of a prosthesis, is provided by heating and deforming a preform composed of a closed cell polyethylene sheet material of specified thickness, to yield said contoured cover/shield of extremely light weight and being toolable for tailor finishing to individual requirements.
    Type: Grant
    Filed: July 1, 1991
    Date of Patent: December 27, 1994
    Inventor: Vern M. Swanson
  • Patent number: 5376132
    Abstract: A visco-elastic polymer liner for use in donning over a residual limb and fitting within the socket of an artificial limb. The liner is shaped to have its cavity formed with a volume and shape less than a volume and shape of the residual limb for both tension and tissue configuration relief while the liner has an outer surface formed with a volume and shape greater than the volume and shape of the artificial limb socket for relief of certain tissue configurations and to create weight bearing, relief and compression areas on and in the liner to absorb and dissipate shock, shear and mechanical forces through the liner otherwise transmitted to the residual limb. The liner may have imbedded on its inner cavity side electrodes adjacent muscles that are sensitive to the muscle action potentials to generate signals to a power source to move an articulable artificial limb.
    Type: Grant
    Filed: October 26, 1993
    Date of Patent: December 27, 1994
    Inventor: Carl A. Caspers
  • Patent number: 5376323
    Abstract: The method of the present invention creates a hollow plastic prosthesis using the following steps. First, a mold of the prosthetic article is created and the mold is injected with room temperature vulcanizable plastic. The mold containing the RTV plastic is maintained at a fixed temperature for a sufficient period of time for the outer most portions of the RTV plastic to form a vulcanized layer in proximity to the inner surface of the mold. The RTV plastic article is then removed from the mold and the remaining unvulcanized plastic is expressed from the interior. The opening is then sealed and the entire article is allowed to completely cure. The prosthetic article thus created is a one piece seamless article conforming substantially to the shape of the mold.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: December 27, 1994
    Assignee: Board of Trustees of University of Arkansas
    Inventor: L. Daniel Eaton
  • Patent number: 5366686
    Abstract: A method for producing an article including a refractory compound by infiltrating a preform with a liquid infiltrant and initiating a reaction between the preform and the liquid infiltrant to establish a reaction front which propagates in a direction opposite to the direction of flow of the liquid infiltrant is provided, as are articles prepared according to this method.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: November 22, 1994
    Assignee: Massachusetts Institute of Technology, a Massachusetts Corporation
    Inventors: Andreas Mortensen, David C. Dunand
  • Patent number: 5358394
    Abstract: An insert forming apparatus is provided for making an insert to conformingly fit a shoe and a person's foot within the shoe. The apparatus includes an upper and lower shell half which, when fastened together, form a foot receiving cavity that conformingly fits the individual contours of the last from which the person's shoes are made. The apparatus also includes an injection tube for injecting insert forming material into the foot receiving cavity under and about the person's foot.
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: October 25, 1994
    Inventor: George C. Riecken
  • Patent number: 5340634
    Abstract: In an injection molding process for creating gripping surfaces in plastic articles a mold is provided which positions a cavity within the plastic article near where the gripping surface is needed. The parameters of the injection molding processes can be controlled to either increase or decrease the gripping surfaces by regulating the amount of shrink in the plastic. Three of the controlled parameters that determine the size of the gripping surface are the injection pressure, melt index of the plastic and the temperature of the cooling water.
    Type: Grant
    Filed: January 8, 1993
    Date of Patent: August 23, 1994
    Assignee: Adams Mfg. Corp.
    Inventor: William E. Adams
  • Patent number: 5336270
    Abstract: A one-piece continuous polymeric prosthesis is disclosed and taught. The prosthesis is intended for patients with a below-knee amputation. The one-piece socket-pylon-keel allows good energy storage and release for a superior feel during physical activities. The construction and the materials makes for a much lighter weight prosthesis than conventional types.
    Type: Grant
    Filed: June 8, 1993
    Date of Patent: August 9, 1994
    Assignee: Wright & Filippis, Inc.
    Inventor: Lawrence A. Lloyd
  • Patent number: 5294380
    Abstract: A method for producing a plate denture which includes heating a flask after embedding a wax denture and wax elimination to a temperature for polymerizing a heat-curable resin, the flask being an assembly including a first half shell having a plaster cast with a corresponding mucosal surface and a second half shell having a plaster cast with artificial teeth embedded therein. The method further including placing the heat-curable resin into the heated flask for polymerization while the flask is at an elevated temperature from the heating, and polymerizing the heat-curable resin in the heated flask. Wherein, during the step of heating the first half shell is heated to a higher temperature level in a range of temperature for polymerizing the heat-curable resin while the second half shell is heated to a lower temperature level in the range than the first half shell.
    Type: Grant
    Filed: October 2, 1992
    Date of Patent: March 15, 1994
    Inventor: Kenji Okamoto
  • Patent number: 5275775
    Abstract: An insert forming apparatus and method is provided for making an insert to conformingly fit a shoe and a person's foot within the shoe. The method for practicing the invention includes using standard molding techniques to form a mold of the bottom of the last and using the mold to vacuum form a lower shell half that conforms to the bottom of the last. With the lower shell half covering the mold and having vacuum communicating holes drilled therein, the last is placed in the lower shell half and the upper shell half is drawn down over the last and lower shell half by vacuum forming. When the upper and lower shell halves have been formed, a hole is drilled in the lower shell half for injecting curable material. A sheet of fabric or leather is placed over the lover shell half, a person's foot is placed on the fabric or leather in the lower shell half, and the upper shell half is placed over the person's foot and fastened to the lower shell half.
    Type: Grant
    Filed: October 21, 1991
    Date of Patent: January 4, 1994
    Inventor: George C. Riecken
  • Patent number: 5264175
    Abstract: My invention relates to the art of making three dimensional impressions and likenesses. More specifically, my invention is an improvement of making three dimensional duplicate of a persons facial appearance and expression.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: November 23, 1993
    Inventor: Byron V. Bush
  • Patent number: 5258036
    Abstract: Method and materials for making a mold that conforms to a body part, such as the stump of an amputated limb. This is formed by two, or more, layers of knit fabric substrate, one or more of which is impregnated with a water activated foaming isocyanate polymer casting resin which is placed over the body part to be molded, and allowed to cure.
    Type: Grant
    Filed: January 15, 1992
    Date of Patent: November 2, 1993
    Assignee: Carapace, Inc.
    Inventors: Martin Edenbaum, Tripp A. Murr, Gary W. Silvers
  • Patent number: 5234976
    Abstract: A molding material for constructing h of living models comprises a composition of alginate powder, water, and chopped polystyrene. This composition is useable in a method of making one-piece head molds or one-piece hand molds of living models by applying the composition to the head of a model, wrapping the composition-covered head in plaster bandages until the composition has cured, removing the bandages, cutting the cured mold so that the model can be freed from the mold, placing the cut edges of the mold in register, and replacing the plaster bandages.
    Type: Grant
    Filed: July 10, 1992
    Date of Patent: August 10, 1993
    Inventor: Mark Prent
  • Patent number: 5211894
    Abstract: The invention provides a composition and a method for studying skin surface areas with simplified magnifying devices by making a replication of the skin surface area while minimizing irritation to the subject's skin, cracking of the replicas, surface artifacts, and air bubbles in the replicas. The method entails preparing a negative skin surface replica composition by mixing a silicone polysiloxane base and a biocompatible surface tension modifying agent. The mixture is placed in a vacuum desiccator to remove air bubbles and thereafter a curing agent is added to the mixture. An adhesive collar is placed on the subject's skin, which collar surrounds the surface area to be replicated, and thereafter the composition is applied to the skin surface area and the adhesive collar and allowed to dry. The negative skin surface casting is removed from the skin area and is then placed skin side up in a mold cup.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: May 18, 1993
    Assignee: Amway Corporation
    Inventors: David G. Groh, James D. Ayres
  • Patent number: 5171265
    Abstract: A self-lubricating ocular prosthesis includes a solid rigid prosthetic eye body with a chamber in the body opening through an access passage through the posterior surface of the body closed with a releasable cap having an outside face conforming to the posterior surface of the body which abuts the orbital cavity. The cap is of a semi-rigid or flexible polymeric resin to retain a fluid in the chamber which is dispensed through bore openings from the chamber through the surface of the eye body. Liquid may be inserted directly into the cavity through the bore opening while the prosthesis is in place. The prosthesis may also include a dispensing ball or depressible button to dispense fluid from the prosthesis.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: December 15, 1992
    Inventor: Kevin V. Kelley
  • Patent number: 5155878
    Abstract: Hand grips for the handles of devices such as motorcycles, tennis rackets, and guns can be custom-molded to fit exactly the contours of the user's hand. The grip has an inner layer that is thermoplastic and moldable at molding temperatures reached by heating with hot water or a hair dryer. An adherent outer, resilient, vibration-resistant layer is stable at these molding temperatures. The user heats the grip to molding temperature and then rapidly cools the outer surface to a comfortable temperature. The grip is then grasped by the hand while the inner layer is still at molding temperature. The hot inner layer conforms to the hand, becoming thinner under the fingers and thicker between fingers. The grip is cooled to ambient temperature and the inner layer retains its hand-conforming shape. The outer layer maintains its original thickness providing a fixed resilient cushioning layer over the custom formed inner layer.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: October 20, 1992
    Inventor: Edward A. Dellis
  • Patent number: 5151232
    Abstract: A mould for an injection moulding apparatus having two resilient mould inserts mate to form a mould cavity and which separate to permit removal of the moulded article. Each mould insert being inserted into opposed movable mould parts such that they abut to form the mould cavity before the movable mould parts abut one another. A process for forming the mould inserts by pressing bodies of mouldable material together around an article and curing the material to form the inserts.
    Type: Grant
    Filed: February 8, 1991
    Date of Patent: September 29, 1992
    Assignee: Games Workshop Limited
    Inventors: John B. Thornthwaite, Robert Naismith
  • Patent number: 5133777
    Abstract: A lower limb prosthesis as a prosthetic foot and an elongate rod formed substantially of unidirectional long fibers embedded in a thermoplastic matrix, the fibers extending substantially parallel to the length of the rod. An adjustment apparatus for the prosthesis includes a pair of pods which may be clamped to the rod and rotated at controlled angles once the thermoplastic rod has been heated to its deformation temperature.
    Type: Grant
    Filed: April 20, 1990
    Date of Patent: July 28, 1992
    Assignee: Ohio Willow Wood Company
    Inventors: Joseph Arbogast, Robert Arbogast
  • Patent number: 5116551
    Abstract: A method and apparatus for producing an article, by covering at least a portion of a microwave heatable former with a liquid-containing material, applying microwave radiation to heat the former so as to leave a dry solid coating on the former, and effecting relative separation between the former and the dry solid coating so as to produce the article.
    Type: Grant
    Filed: May 9, 1991
    Date of Patent: May 26, 1992
    Inventors: Roderick I. Davidson, Peter R. Hornsby
  • Patent number: 5089205
    Abstract: A process for imparting enhanced antimicrobial properties to medical devices, and particularly surgical and examination gloves, and to such gloves produced by the process. The process involves partially forming the gloves by dipping glove molds into a latex composition, for example, and prior to curing or heating to final form, dipping the already coated forms into a second composition containing an antimicrobial agent, and thereafter curing or heat setting the finally produced glove prior to stripping from the form. Alternatively, the antimicrobial composition can be additionally or independently applied to a cured glove before stripping. The result is a glove which prevents, or decreases the potential of, cross-contamination between the glove users and patients because it will kill or reduce the susceptible microorganisms prior to or after penetration of the basic material forming the glove.
    Type: Grant
    Filed: September 25, 1989
    Date of Patent: February 18, 1992
    Assignee: Becton, Dickinson and Company
    Inventors: Wu-Nan Huang, Niles R. Manwill, Fung-Bor Chen
  • Patent number: 5083910
    Abstract: A custom-fitted insole assembly for use in a shoe directly under a wearer's foot includes a heel-cupping and arch-supporting base component custom contoured to fit the heel and arch of the wearer's foot, a heel stabilizing component attached to an underside heel region of the base component, and a shock absorbing top sheet component sized to underlie the bottom of the wearer's foot and at its rear half to overlie and conform to the contour of the base component.
    Type: Grant
    Filed: May 17, 1990
    Date of Patent: January 28, 1992
    Inventors: Danny P. Abshire, Jennifer M. Abshire
  • Patent number: 5045266
    Abstract: An acoustically sealed earmold for a hearing aid insertable into the ear of individuals with impaired hearing can be prepared in situ employing the hydrophilic composite polymer materials described herein. Such composite materials include at least one hydrophilic polymer in a powder form and one or more liquid components of which at least one is hydrophilic and which can be polymerized with said hydrophilic polymer. The resulting earmold has a shape-retaining, non-tacky flexible consistency which allows it to be shaped further and also to be modified to accommodate a receiver adapter or external receiver. The earmold can then be cured by any of the conventional curing methods to retain its shape permanently. This method enables an audiologist to fit the earmold and evaluate the hearing aid in a single office visit.
    Type: Grant
    Filed: November 2, 1989
    Date of Patent: September 3, 1991
    Assignee: National Patent Development Corporation
    Inventors: Daniel G. Moro, Samuel H. Ronel, Petr Kuzma
  • Patent number: 5015431
    Abstract: A process for making a model skin surface for testing adhesion of medical adhesive as a screening test and/or as an alternative to costly and highly variable human skin substrates including casting silicone rubber on human skin to produce a mold having human skin topography and pouring a water-swellable, water-soluble proteinaceous material along with a crosslinking agent and fatty acid constituent into the mold. The proteinaceous material crosslinks while in the mold and the water content of the material is adjustable to simulate varying moisture contents in human skin.
    Type: Grant
    Filed: August 29, 1989
    Date of Patent: May 14, 1991
    Assignee: The Kendall Company
    Inventor: John C. Charkoudian