US20180168288A1 - Foot impression device, system, and related methods - Google Patents
Foot impression device, system, and related methods Download PDFInfo
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- US20180168288A1 US20180168288A1 US15/843,431 US201715843431A US2018168288A1 US 20180168288 A1 US20180168288 A1 US 20180168288A1 US 201715843431 A US201715843431 A US 201715843431A US 2018168288 A1 US2018168288 A1 US 2018168288A1
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- particles
- vacuum
- coefficient
- friction
- vacuum pressure
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
- A43D1/00—Foot or last measuring devices; Measuring devices for shoe parts
- A43D1/02—Foot-measuring devices
- A43D1/022—Foot-measuring devices involving making footprints or permanent moulds of the foot
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3821—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process composed of particles enclosed in a bag
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
- B29C33/3857—Manufacturing moulds, e.g. shaping the mould surface by machining by making impressions of one or more parts of models, e.g. shaped articles and including possible subsequent assembly of the parts
-
- 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
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
- A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
- A43B7/141—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form having an anatomical or curved form
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
- A43D1/00—Foot or last measuring devices; Measuring devices for shoe parts
- A43D1/02—Foot-measuring devices
- A43D1/025—Foot-measuring devices comprising optical means, e.g. mirrors, photo-electric cells, for measuring or inspecting feet
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
- A43D2200/00—Machines or methods characterised by special features
- A43D2200/60—Computer aided manufacture of footwear, e.g. CAD or CAM
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
- B29C33/3857—Manufacturing moulds, e.g. shaping the mould surface by machining by making impressions of one or more parts of models, e.g. shaped articles and including possible subsequent assembly of the parts
- B29C2033/3871—Manufacturing moulds, e.g. shaping the mould surface by machining by making impressions of one or more parts of models, e.g. shaped articles and including possible subsequent assembly of the parts the models being organic material, e.g. living or dead bodies or parts thereof
-
- 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
- B29L2031/48—Wearing apparel
- B29L2031/50—Footwear, e.g. shoes or parts thereof
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
Definitions
- the present disclosure relates to orthotics.
- the present disclosure relates to systems and methods for taking an impression of a foot or other anatomical feature.
- An exemplary impression device has a base having a recess and a conduit for fluidly coupling the recess to a vacuum source, and a first plurality of particles positioned in the recess.
- the first plurality of particles are sealed from an external environment.
- the first plurality of particles has a first coefficient of friction between each other, the first coefficient of friction selected to allow the particles to move relative to each other in the absence of a vacuum and to prevent the particles from moving relative to each other in the presence of a vacuum.
- An exemplary method of taking an impression includes providing an impression device, the impression device having a base having a recess and a conduit for fluidly coupling the recess to a vacuum source, a first plurality of particles positioned in the recess, and a flexible membrane coupled to the base and adjacent the plurality of members, the first plurality of particles sealed from an external environment, wherein the first plurality of particles have a first coefficient of friction between each other, the first coefficient of friction selected to allow the particles to move relative to each other in the absence of a vacuum and to prevent the particles from moving relative to each other in the presence of a vacuum.
- the exemplary method includes causing the first plurality of particles to form about a portion of the anatomical feature.
- the exemplary method includes applying a first vacuum pressure to the first plurality of particles, and applying a second vacuum pressure to the first plurality of particles, the second vacuum pressure different from the first vacuum pressure.
- An exemplary method of making an orthotic includes providing an impression device, the impression device having a base having a recess and a conduit for fluidly coupling the recess to a vacuum source, a first plurality of particles positioned in the recess, the first plurality of particles sealed from an external environment, wherein the first plurality of particles have a first coefficient of friction between each other, the first coefficient of friction selected to allow the particles to move relative to each other in the absence of a vacuum and to prevent the particles from moving relative to each other in the presence of a vacuum.
- the exemplary method includes causing the first plurality of particles to form about a portion of the anatomical feature, applying a first vacuum pressure to the first plurality of particles, and applying a second vacuum pressure to the first plurality of particles, the second vacuum pressure different from the first vacuum pressure, whereby an impression is created.
- the exemplary method includes using a 3D scanner to scan the impression.
- the exemplary method includes at least one of 3D printing an orthotic, CNC machining an orthotic, 3D printing a mold for an orthotic, or CNC machining a mold for an orthotic.
- FIG. 1 illustrates a perspective view of an exemplary impression device according to some embodiments
- FIG. 2 illustrates an exploded perspective view of the device in FIG. 1 ;
- FIG. 3 illustrates an exploded side section view of the device in FIG. 1 ;
- FIG. 4 illustrates an exemplary pouch suitable for use in the device in FIG. 1 ;
- FIG. 5 is a flow chart of an exemplary method
- FIG. 6 is a flow chart of an exemplary method.
- the impression device 100 may provide a user or physician with the ability to capture the complete contour of an anatomical feature of a person or animal, such as a person's foot in a smooth, organic manner.
- anatomical feature such as a person's foot
- the device 100 may have a base 102 with a recess 114 for receiving a plurality of particles 104 .
- the particles 104 may be enclosed or held in the recess 114 by way of a pouch 120 (see e.g. FIG. 4 ) and/membrane 106 .
- the process may provide the practitioner with a simple means to position the anatomical feature or foot in an anatomically correct alignment, readjusting as necessary and quickly through the use of vacuum pressure, and creating a 3D impression.
- This impression may then be scanned, to become the source data for subsequent editing and final manufacture of an orthotic, which may include CNC machining, CNC milling, CNC turning, or 3D printing of the orthotic.
- the entire shaping, scanning, and manufacture process may, in some embodiments, take place in the practitioner's office and/or within a matter of hours, such as 8 hours or less, or 5 hours or less, or 2 hours or less, or 1 hour or less.
- the process of placing the foot, forming the membrane, and scanning to form and impression may take 30 minutes or less, or about 20 minutes or less.
- the impression device 100 is configured to create an impression of a foot or anatomical feature.
- a plurality of particles 104 which may be spherical, may be contained in a containment pouch 120 (see FIG. 4 ) that is placed underneath a membrane.
- the particles 104 may be placed in a recess 114 in the base 102 , with a membrane 106 provided to isolate the particles 104 from the external environment and/or the foot.
- the membrane 106 may be held in position or coupled to the base 104 by way of a membrane positioning system.
- the membrane positioning system may include one or more framing features 108 a , 108 b , 108 c and/or fasteners for holding the membrane 106 in place and/or providing a seal between the membrane 106 and the base 102 .
- the membrane frames 108 b and/or 108 c may not be necessary.
- silicone rubber tubing embedded in channels at the top of the base and/or bottom of the lid 108 a may create an adequate seal. That is, and means for providing a vacuum about the particles 104 may be provided.
- the device 100 may include any suitable means 122 , 124 for operating the vacuum device such as a vacuum pressure adjustment valve 122 and/or power switch 124 , or other monitoring means.
- the clinician may move or manipulate the membrane 106 , portions of the containment pouch 120 (where available, see FIG. 4 ), and/or spherical particles 104 about, so as to conform to a bottom portion of the anatomical feature or foot.
- the vacuum pump 112 may then be actuated to remove air from the recess 114 , such as through a conduit 116 provided between the vacuum and the recess 114 or area containing the particles 104 .
- the vacuum pump 112 may be positioned inside the base 102 and held in position by a support 110 (see FIG. 3 ), or the pump 112 may be external to the device 100 . Actuation of the vacuum pump 112 may stabilize the particles 104 .
- the pump 112 may hold the particles 104 in position even after the foot is removed.
- the foot may then be withdrawn from the device 100 , leaving the containment pouch and/or membrane 106 with the impression of the foot.
- the impression may then be scanned, using, for example, any commercial 3D scanner.
- the membrane 106 may be unitary with a wall or portion of the pouch 120 in some examples.
- the vacuum pump 112 may be configured to cause the particles 104 to have, essentially, the consistency of wet sand at a first vacuum pressure. In some embodiments, the vacuum pump 112 may be configurable by a user to cause the particles to have a first desired consistency set to the user's preferences. For example, if the user is using the device 100 to take an impression of a horse's hoof, a denser consistency may be desired.
- the vacuum pump 112 may be configured to cause the particles 104 to have a second consistency at a second vacuum pressure, different from the first consistency.
- the second consistency may be a “soft set” that is firm enough to maintain the shape caused by the impression of the anatomical feature, but also soft enough to allow the user to re-form to his or her preference after the anatomical feature is removed.
- the vacuum pump 112 may be configured to cause the particles 104 to have a third consistency at a third vacuum pressure, different from the first and second consistencies.
- the third consistency may be a “concrete set” that is substantially immovable, and suitable for 3D scanning.
- the vacuum pump 112 may have an infinite number of pressure settings. That is, the pump 112 may allow a user to adjust the pressure infinitely to achieve a desired consistency before, during, or after taking an impression of an anatomical feature.
- the membrane 106 is provided so as to provide a smoothly-shaped impression that requires little or no manual shaping after the 3D printing process. In some embodiments, the membrane 106 is provided to protect the containment pouch 120 (where provided).
- the containment pouch 120 is replaceable. In some embodiments, the containment pouch 120 is removable. The containment pouch 120 may be removable using standard tooling, or a specialized tool may be required to prevent inadvertent tampering. In some embodiments, the membrane 106 is replaceable. In some embodiments, the membrane 106 is removable. The membrane 106 may be removable using standard tooling, or a specialized tool may be required to prevent inadvertent tampering.
- the particles 104 may be spherical, and may have an average diameter of about 1 millimeter. In some embodiments, the spherical particles 104 have an average diameter of between about 0.8 millimeters and about 1.2 millimeters. In some embodiments, the spherical particles 104 are between about 0.7 millimeters and about 1.4 millimeters. In some embodiments, the spherical particles 104 are glass beads. In some embodiments, the spherical particles 104 are soda-lime glass beads. In some embodiments, the spherical particles are made of a plastic, such as Nylon. Other materials are also contemplated.
- the spherical particles 104 are selected to have a frictional engagement with each other that is high enough to maintain the formed shape after the vacuum pump is activated and the foot is withdrawn, but low enough to allow the spheres to be manipulated or moved to form about the foot.
- the spherical particles 104 are made of glass.
- the device 104 may be configured to handle a particular weight range of a person.
- pediatric, small adult, large adult, and other versions may be provided.
- spherical particles 104 in a pediatric version may have a lower coefficient of friction than, for example, those found in a large adult version, to ease formation of the membrane and containment pouch.
- a plurality of interchangeable containment pouches having spherical particles customized for the intended use with differently sized patients may be provided as a part of a system with the device, so that the clinician does not have to maintain multiple units on-site.
- a method 500 of making an orthotic impression may include placing 502 the foot of a sitting patient on top of a rubber membrane of a device substantially as previously described herein.
- the method 500 may also include rocking the foot side to side, and/or sinking 504 the foot that is on top of the rubber in to a bed of forming spheres within the containment pouch.
- the method may include, after causing the foot to sink, activating 506 the device.
- Activating 506 the device may include turning the device to an on or ready state.
- the method may include activating 508 the vacuum pump to a LOW vacuum pressure.
- the LOW vacuum pressure may cause a vacuum in the box cavity and the enclosed containment pouch.
- the resulting rubber/pouch/spheres take on the form of the foot and the spheres may become the consistency of wet sand. That is, while the foot is still in the formed cavity, the sphere consistency and LOW vacuum pressure allow for additional shaping and alignment of the impression by the clinician.
- the method 500 may further include activating 510 the vacuum pump to a HIGH vacuum pressure. Activating to a HIGH vacuum pressure may occur after the final shaping is complete using the LOW vacuum pressure.
- the HIGH vacuum pressure may be selected to set the spheres to a concrete-like hardness.
- the method may include removing the foot.
- the method may include taking a 3D scan of the formed membrane while the device is activated to a HIGH vacuum pressure.
- the 3D scan may be accomplished using a 3D hand-held scanner, such as within about 10 seconds.
- the method may include saving a scanned image for CAD editing.
- the method may include CAD editing of the scanned image.
- the method 500 may include deactivating the vacuum pump, thereby allowing the spheres to return to a relaxed state, ready for another cycle.
- a method 600 of making an orthotic may include providing 602 a foot impression device, such as the device 100 described herein.
- the method 600 may include placing 604 a person's foot on the flexible membrane, causing 606 the first plurality of particles to form about a portion of the person's foot, applying 608 a first vacuum pressure to the first plurality of particles, and applying 610 a second vacuum pressure to the first plurality of particles, the second vacuum pressure different from the first vacuum pressure, whereby a foot impression is created.
- the method 600 may include using 612 a 3D scanner to scan the foot impression, and 3D printing 614 an orthotic.
- the method 600 may include using a 3D printer or CNC machine or CNC milling machine to print or form an orthotic according to the scanned 3D image, a CAD-edited version of the scanned 3D image, or both.
- the method may include printing an orthotic within one day of taking an impression of a foot.
- the method may be achieved using, for example, the device or system previously described herein.
- the method may include using a CNC machine to form the orthotic in conformity with the scanned 3D image, a CAD-edited version of the scanned 3D image, or both.
- the method may be achieved using, for example, the device or system previously described herein.
Abstract
An impression device and related methods are disclosed. The device has a base having a recess and a conduit for fluidly coupling the recess to a vacuum source, and a first plurality of particles positioned in the recess. The first plurality of particles sealed from an external environment. The first plurality of particles has a first coefficient of friction between each other, the first coefficient of friction selected to allow the particles to move relative to each other in the absence of a vacuum and to prevent the particles from moving relative to each other in the presence of a vacuum.
Description
- The present Application for Patent claims priority to Provisional Application No. 62/435,175 entitled “FOOT IMPRESSION DEVICE, SYSTEM, AND RELATED METHODS” filed Dec. 12, 2016, the entire contents of which are hereby expressly incorporated by reference herein.
- The present disclosure relates to orthotics. In particular, but not by way of limitation, the present disclosure relates to systems and methods for taking an impression of a foot or other anatomical feature.
- An exemplary impression device has a base having a recess and a conduit for fluidly coupling the recess to a vacuum source, and a first plurality of particles positioned in the recess. The first plurality of particles are sealed from an external environment. The first plurality of particles has a first coefficient of friction between each other, the first coefficient of friction selected to allow the particles to move relative to each other in the absence of a vacuum and to prevent the particles from moving relative to each other in the presence of a vacuum.
- An exemplary method of taking an impression includes providing an impression device, the impression device having a base having a recess and a conduit for fluidly coupling the recess to a vacuum source, a first plurality of particles positioned in the recess, and a flexible membrane coupled to the base and adjacent the plurality of members, the first plurality of particles sealed from an external environment, wherein the first plurality of particles have a first coefficient of friction between each other, the first coefficient of friction selected to allow the particles to move relative to each other in the absence of a vacuum and to prevent the particles from moving relative to each other in the presence of a vacuum. The exemplary method includes causing the first plurality of particles to form about a portion of the anatomical feature. The exemplary method includes applying a first vacuum pressure to the first plurality of particles, and applying a second vacuum pressure to the first plurality of particles, the second vacuum pressure different from the first vacuum pressure.
- An exemplary method of making an orthotic includes providing an impression device, the impression device having a base having a recess and a conduit for fluidly coupling the recess to a vacuum source, a first plurality of particles positioned in the recess, the first plurality of particles sealed from an external environment, wherein the first plurality of particles have a first coefficient of friction between each other, the first coefficient of friction selected to allow the particles to move relative to each other in the absence of a vacuum and to prevent the particles from moving relative to each other in the presence of a vacuum. The exemplary method includes causing the first plurality of particles to form about a portion of the anatomical feature, applying a first vacuum pressure to the first plurality of particles, and applying a second vacuum pressure to the first plurality of particles, the second vacuum pressure different from the first vacuum pressure, whereby an impression is created. The exemplary method includes using a 3D scanner to scan the impression. The exemplary method includes at least one of 3D printing an orthotic, CNC machining an orthotic, 3D printing a mold for an orthotic, or CNC machining a mold for an orthotic.
-
FIG. 1 illustrates a perspective view of an exemplary impression device according to some embodiments; -
FIG. 2 illustrates an exploded perspective view of the device inFIG. 1 ; -
FIG. 3 illustrates an exploded side section view of the device inFIG. 1 ; -
FIG. 4 illustrates an exemplary pouch suitable for use in the device inFIG. 1 ; -
FIG. 5 is a flow chart of an exemplary method; and -
FIG. 6 is a flow chart of an exemplary method. - As illustrated in
FIG. 1 , theimpression device 100 may provide a user or physician with the ability to capture the complete contour of an anatomical feature of a person or animal, such as a person's foot in a smooth, organic manner. For the purpose of this document, the terms “foot” and “anatomical feature” may be used interchangeably. Thedevice 100 may have abase 102 with arecess 114 for receiving a plurality ofparticles 104. Theparticles 104 may be enclosed or held in therecess 114 by way of a pouch 120 (see e.g.FIG. 4 ) and/membrane 106. The process may provide the practitioner with a simple means to position the anatomical feature or foot in an anatomically correct alignment, readjusting as necessary and quickly through the use of vacuum pressure, and creating a 3D impression. This impression may then be scanned, to become the source data for subsequent editing and final manufacture of an orthotic, which may include CNC machining, CNC milling, CNC turning, or 3D printing of the orthotic. The entire shaping, scanning, and manufacture process may, in some embodiments, take place in the practitioner's office and/or within a matter of hours, such as 8 hours or less, or 5 hours or less, or 2 hours or less, or 1 hour or less. In some embodiments, the process of placing the foot, forming the membrane, and scanning to form and impression may take 30 minutes or less, or about 20 minutes or less. - In some embodiments, the
impression device 100, such as the device inFIG. 1 , is configured to create an impression of a foot or anatomical feature. For example, a plurality ofparticles 104, which may be spherical, may be contained in a containment pouch 120 (seeFIG. 4 ) that is placed underneath a membrane. In some embodiments, theparticles 104 may be placed in arecess 114 in thebase 102, with amembrane 106 provided to isolate theparticles 104 from the external environment and/or the foot. Themembrane 106 may be held in position or coupled to thebase 104 by way of a membrane positioning system. The membrane positioning system may include one or more framing features 108 a, 108 b, 108 c and/or fasteners for holding themembrane 106 in place and/or providing a seal between themembrane 106 and thebase 102. Those skilled in the art will readily recognize that themembrane frames 108 b and/or 108 c may not be necessary. For example, silicone rubber tubing embedded in channels at the top of the base and/or bottom of thelid 108 a may create an adequate seal. That is, and means for providing a vacuum about theparticles 104 may be provided. - Those skilled in the art will also readily recognize that the
device 100 may include any suitable means 122, 124 for operating the vacuum device such as a vacuumpressure adjustment valve 122 and/orpower switch 124, or other monitoring means. - After a person steps on the
membrane 106, the clinician may move or manipulate themembrane 106, portions of the containment pouch 120 (where available, seeFIG. 4 ), and/orspherical particles 104 about, so as to conform to a bottom portion of the anatomical feature or foot. Thevacuum pump 112 may then be actuated to remove air from therecess 114, such as through aconduit 116 provided between the vacuum and therecess 114 or area containing theparticles 104. Thevacuum pump 112 may be positioned inside thebase 102 and held in position by a support 110 (seeFIG. 3 ), or thepump 112 may be external to thedevice 100. Actuation of thevacuum pump 112 may stabilize theparticles 104. That is, thepump 112 may hold theparticles 104 in position even after the foot is removed. The foot may then be withdrawn from thedevice 100, leaving the containment pouch and/ormembrane 106 with the impression of the foot. The impression may then be scanned, using, for example, any commercial 3D scanner. - Those skilled in the art will readily recognize that the
membrane 106 may be unitary with a wall or portion of thepouch 120 in some examples. - In some embodiments, the
vacuum pump 112 may be configured to cause theparticles 104 to have, essentially, the consistency of wet sand at a first vacuum pressure. In some embodiments, thevacuum pump 112 may be configurable by a user to cause the particles to have a first desired consistency set to the user's preferences. For example, if the user is using thedevice 100 to take an impression of a horse's hoof, a denser consistency may be desired. - In some embodiments, the
vacuum pump 112 may be configured to cause theparticles 104 to have a second consistency at a second vacuum pressure, different from the first consistency. The second consistency may be a “soft set” that is firm enough to maintain the shape caused by the impression of the anatomical feature, but also soft enough to allow the user to re-form to his or her preference after the anatomical feature is removed. - In some embodiments, the
vacuum pump 112 may be configured to cause theparticles 104 to have a third consistency at a third vacuum pressure, different from the first and second consistencies. The third consistency may be a “concrete set” that is substantially immovable, and suitable for 3D scanning. - In some embodiments, the
vacuum pump 112 may have an infinite number of pressure settings. That is, thepump 112 may allow a user to adjust the pressure infinitely to achieve a desired consistency before, during, or after taking an impression of an anatomical feature. - In some embodiments, the
membrane 106 is provided so as to provide a smoothly-shaped impression that requires little or no manual shaping after the 3D printing process. In some embodiments, themembrane 106 is provided to protect the containment pouch 120 (where provided). - In some embodiments, the
containment pouch 120 is replaceable. In some embodiments, thecontainment pouch 120 is removable. Thecontainment pouch 120 may be removable using standard tooling, or a specialized tool may be required to prevent inadvertent tampering. In some embodiments, themembrane 106 is replaceable. In some embodiments, themembrane 106 is removable. Themembrane 106 may be removable using standard tooling, or a specialized tool may be required to prevent inadvertent tampering. - In some embodiments, the
particles 104 may be spherical, and may have an average diameter of about 1 millimeter. In some embodiments, thespherical particles 104 have an average diameter of between about 0.8 millimeters and about 1.2 millimeters. In some embodiments, thespherical particles 104 are between about 0.7 millimeters and about 1.4 millimeters. In some embodiments, thespherical particles 104 are glass beads. In some embodiments, thespherical particles 104 are soda-lime glass beads. In some embodiments, the spherical particles are made of a plastic, such as Nylon. Other materials are also contemplated. In some embodiments, thespherical particles 104 are selected to have a frictional engagement with each other that is high enough to maintain the formed shape after the vacuum pump is activated and the foot is withdrawn, but low enough to allow the spheres to be manipulated or moved to form about the foot. In some embodiments, thespherical particles 104 are made of glass. - In some embodiments, the
device 104 may be configured to handle a particular weight range of a person. For example, pediatric, small adult, large adult, and other versions may be provided. In some embodiments,spherical particles 104 in a pediatric version may have a lower coefficient of friction than, for example, those found in a large adult version, to ease formation of the membrane and containment pouch. In some embodiments, a plurality of interchangeable containment pouches having spherical particles customized for the intended use with differently sized patients may be provided as a part of a system with the device, so that the clinician does not have to maintain multiple units on-site. - In some embodiments, a
method 500 of making an orthotic impression is provided. Themethod 500 may include placing 502 the foot of a sitting patient on top of a rubber membrane of a device substantially as previously described herein. Themethod 500 may also include rocking the foot side to side, and/or sinking 504 the foot that is on top of the rubber in to a bed of forming spheres within the containment pouch. The method may include, after causing the foot to sink, activating 506 the device. Activating 506 the device may include turning the device to an on or ready state. - The method may include activating 508 the vacuum pump to a LOW vacuum pressure. The LOW vacuum pressure may cause a vacuum in the box cavity and the enclosed containment pouch. The resulting rubber/pouch/spheres take on the form of the foot and the spheres may become the consistency of wet sand. That is, while the foot is still in the formed cavity, the sphere consistency and LOW vacuum pressure allow for additional shaping and alignment of the impression by the clinician.
- The
method 500 may further include activating 510 the vacuum pump to a HIGH vacuum pressure. Activating to a HIGH vacuum pressure may occur after the final shaping is complete using the LOW vacuum pressure. The HIGH vacuum pressure may be selected to set the spheres to a concrete-like hardness. - The method may include removing the foot.
- The method may include taking a 3D scan of the formed membrane while the device is activated to a HIGH vacuum pressure. The 3D scan may be accomplished using a 3D hand-held scanner, such as within about 10 seconds.
- The method may include saving a scanned image for CAD editing. The method may include CAD editing of the scanned image.
- The
method 500 may include deactivating the vacuum pump, thereby allowing the spheres to return to a relaxed state, ready for another cycle. - In some embodiments, a
method 600 of making an orthotic is provided. Themethod 600 may include providing 602 a foot impression device, such as thedevice 100 described herein. Themethod 600 may include placing 604 a person's foot on the flexible membrane, causing 606 the first plurality of particles to form about a portion of the person's foot, applying 608 a first vacuum pressure to the first plurality of particles, and applying 610 a second vacuum pressure to the first plurality of particles, the second vacuum pressure different from the first vacuum pressure, whereby a foot impression is created. Themethod 600 may include using 612 a 3D scanner to scan the foot impression, and3D printing 614 an orthotic. Themethod 600 may include using a 3D printer or CNC machine or CNC milling machine to print or form an orthotic according to the scanned 3D image, a CAD-edited version of the scanned 3D image, or both. The method may include printing an orthotic within one day of taking an impression of a foot. The method may be achieved using, for example, the device or system previously described herein. - The method may include using a CNC machine to form the orthotic in conformity with the scanned 3D image, a CAD-edited version of the scanned 3D image, or both. The method may be achieved using, for example, the device or system previously described herein.
- The terms and expressions employed herein are used as terms and expressions of description and not of limitation, and there is no intention, in the use of such terms and expressions, of excluding any equivalents of the features shown and described or portions thereof. In addition, having described certain embodiments, it will be apparent to those of ordinary skill in the art that other embodiments incorporating the concepts disclosed herein may be used without departing from the spirit and scope of the disclosure. Accordingly, the described embodiments are to be considered in all respects as only illustrative and not restrictive.
- Each of the various elements disclosed herein may be achieved in a variety of manners. This disclosure should be understood to encompass each such variation, be it a variation of an embodiment of any apparatus embodiment, a method or process embodiment, or even merely a variation of any element of these. Particularly, it should be understood that the words for each element may be expressed by equivalent apparatus terms or method terms—even if only the function or result is the same. Such equivalent, broader, or even more generic terms should be considered to be encompassed in the description of each element or action. Such terms can be substituted where desired to make explicit the implicitly broad coverage to which this disclosure is entitled.
- As but one example, it should be understood that all action may be expressed as a means for taking that action or as an element which causes that action. Similarly, each physical element disclosed should be understood to encompass a disclosure of the action which that physical element facilitates. Regarding this last aspect, by way of example only, the disclosure of an actuator should be understood to encompass disclosure of the act of actuating—whether explicitly discussed or not—and, conversely, were there only disclosure of the act of actuating, such a disclosure should be understood to encompass disclosure of an actuating mechanism. Such changes and alternative terms are to be understood to be explicitly included in the description.
- The previous description of the disclosed embodiments and examples is provided to enable any person skilled in the art to make or use the present disclosure as defined by the claims. Thus, the present disclosure is not intended to be limited to the examples disclosed herein. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention as claimed.
Claims (20)
1. An impression device, comprising:
a base having a recess and a conduit for fluidly coupling the recess to a vacuum source; and
a first plurality of particles positioned in the recess, the first plurality of particles sealed from an external environment; wherein
the first plurality of particles has a first coefficient of friction between each other, the first coefficient of friction selected to allow the particles to move relative to each other in the absence of a vacuum and to prevent the particles from moving relative to each other in the presence of a vacuum.
2. The device of claim 1 , further comprising:
a first pouch enclosing the first plurality of particles.
3. The device of claim 2 , further comprising:
a second pouch enclosing a second plurality of particles, the second pouch and the first pouch exchangeable; wherein
the second plurality of particles has a second coefficient of friction between each other, the second coefficient of friction different from the first coefficient of friction.
4. The device of claim 1 , wherein:
the first plurality of particles comprises glass beads.
5. The device of claim 4 , wherein:
the first plurality of particles has an average diameter of between about 0.7 millimeters and about 1.4 millimeters.
6. The device of claim 5 , wherein:
the average diameter is between about 0.8 millimeters and about 1.2 millimeters.
7. The device of claim 1 , further comprising:
a vacuum pump fluidly coupled to the recess, the vacuum pump configured to apply a first vacuum pressure and a second vacuum pressure to the first plurality of particles, the first vacuum pressure different from the second vacuum pressure.
8. The device of claim 7 , wherein:
the first vacuum pressure causes the first plurality of particles to have a consistency of wet sand.
9. A method of taking an impression of an anatomical feature, the method comprising:
providing a foot impression device, the foot impression device having a base having a recess and a conduit for fluidly coupling the recess to a vacuum source, a first plurality of particles positioned in the recess, and a flexible membrane coupled to the base and adjacent the plurality of members, the first plurality of particles sealed from an external environment, wherein the first plurality of particles have a first coefficient of friction between each other, the first coefficient of friction selected to allow the particles to move relative to each other in the absence of a vacuum and to prevent the particles from moving relative to each other in the presence of a vacuum;
causing the first plurality of particles to form about a portion of an anatomical feature;
applying a first vacuum pressure to the first plurality of particles; and
applying a second vacuum pressure to the first plurality of particles, the second vacuum pressure different from the first vacuum pressure.
10. The method of claim 9 , further comprising:
providing a first pouch enclosing the first plurality of particles.
11. The method of claim 10 , further comprising:
providing a second pouch enclosing a second plurality of particles, the second pouch and the first pouch exchangeable; wherein
the second plurality of particles have a second coefficient of friction between each other, the second coefficient of friction different from the first coefficient of friction.
12. The method of claim 9 , wherein:
the first plurality of particles comprises glass beads.
13. The method of claim 12 , wherein:
the first plurality of particles has an average diameter of between about 0.7 millimeters and about 1.4 millimeters.
14. The method of claim 13 , wherein:
the average diameter is between about 0.8 millimeters and about 1.2 millimeters.
15. A method of making an orthotic, the method comprising:
providing an impression device, the impression device having a base having a recess and a conduit for fluidly coupling the recess to a vacuum source, a first plurality of particles positioned in the recess, the first plurality of particles sealed from an external environment, wherein the first plurality of particles have a first coefficient of friction between each other, the first coefficient of friction selected to allow the particles to move relative to each other in the absence of a vacuum and to prevent the particles from moving relative to each other in the presence of a vacuum;
causing the first plurality of particles to form about a portion of an anatomical feature;
applying a first vacuum pressure to the first plurality of particles; and
applying a second vacuum pressure to the first plurality of particles, the second vacuum pressure different from the first vacuum pressure, whereby an impression of the anatomical feature is created;
using a 3D scanner to scan the impression; and
responsive to the using the 3D scanner to scan, at least one of 3D printing an orthotic, CNC machining an orthotic, 3D printing a mold for an orthotic, or CNC machining a mold for an orthotic.
16. The method of claim 15 , further comprising:
providing a first pouch enclosing the first plurality of particles.
17. The method of claim 16 , further comprising:
providing a second pouch enclosing a second plurality of particles, the second pouch and the first pouch exchangeable; wherein
the second plurality of particles have a second coefficient of friction between each other, the second coefficient of friction different from the first coefficient of friction.
18. The method of claim 15 , wherein:
the first plurality of particles comprises glass beads.
19. The method of claim 18 , wherein:
the first plurality of particles has an average diameter of between about 0.7 millimeters and about 1.4 millimeters.
20. The method of claim 19 , wherein:
the average diameter is between about 0.8 millimeters and about 1.2 millimeters.
Priority Applications (2)
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US15/843,431 US20180168288A1 (en) | 2016-12-16 | 2017-12-15 | Foot impression device, system, and related methods |
US16/555,466 US10660410B2 (en) | 2016-12-16 | 2019-08-29 | Foot impression device, system, and related methods |
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US201662435175P | 2016-12-16 | 2016-12-16 | |
US15/843,431 US20180168288A1 (en) | 2016-12-16 | 2017-12-15 | Foot impression device, system, and related methods |
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Cited By (2)
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US10492569B2 (en) * | 2017-09-21 | 2019-12-03 | Yi-Hsien Liu | Sole measuring device |
US20190380448A1 (en) * | 2016-12-16 | 2019-12-19 | Glenn M. Gilbertson | Foot impression device, system, and related methods |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111086131A (en) * | 2019-12-24 | 2020-05-01 | 无锡惠思特快速制造科技有限公司 | Rapid manufacturing method of shoe sole |
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Also Published As
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US20190380448A1 (en) | 2019-12-19 |
US10660410B2 (en) | 2020-05-26 |
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