US20030195623A1 - Prosthesis and method of making - Google Patents
Prosthesis and method of making Download PDFInfo
- Publication number
- US20030195623A1 US20030195623A1 US10/421,543 US42154303A US2003195623A1 US 20030195623 A1 US20030195623 A1 US 20030195623A1 US 42154303 A US42154303 A US 42154303A US 2003195623 A1 US2003195623 A1 US 2003195623A1
- Authority
- US
- United States
- Prior art keywords
- breast
- prosthesis
- individual
- image
- breast prosthesis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 0 C*CCC(CC1C(*C)C1)CC1C(CCC2CCCC2)CCCC1 Chemical compound C*CCC(CC1C(*C)C1)CC1C(CCC2CCCC2)CCCC1 0.000 description 2
- FVFOQXFPKGZFJW-UONOGXRCSA-N CCCC[C@@H]1[C@](C)(CCC)CCCC1 Chemical compound CCCC[C@@H]1[C@](C)(CCC)CCCC1 FVFOQXFPKGZFJW-UONOGXRCSA-N 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/43—Detecting, measuring or recording for evaluating the reproductive systems
- A61B5/4306—Detecting, measuring or recording for evaluating the reproductive systems for evaluating the female reproductive systems, e.g. gynaecological evaluations
- A61B5/4312—Breast evaluation or disorder diagnosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0062—Arrangements for scanning
- A61B5/0064—Body surface scanning
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
- A61B5/1077—Measuring of profiles
-
- 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
-
- 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
- A61F2/52—Mammary prostheses
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/25—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object
- G01B11/2513—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object with several lines being projected in more than one direction, e.g. grids, patterns
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/25—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object
- G01B11/2518—Projection by scanning of the object
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/12—Mammary prostheses and implants
-
- 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
- A61F2002/505—Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, finite-element analysis or CAD-CAM techniques using CAD-CAM techniques or NC-techniques
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00365—Proteins; Polypeptides; Degradation products thereof
- A61F2310/00383—Gelatin
-
- 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 invention relates generally to the fields of imaging and biomedical devices. More specifically, the present invention relates to prosthesis profilometry and manufacture.
- the present invention provides a novel apparatus for measuring the shape of various parts of anatomy that is quick, non-contact, and results in digital contour information which can be used to control computer-operated machines to make the mold for an internal or external prosthesis or an orthotic.
- These devices may alternatively be used for capturing and digitizing an image of any anatomical part for the purpose of creating prosthetic or orthotic devices which match previously existing parts, for providing bilateral symmetry or for creating a new anatomical part based on aesthetic or practical physical considerations.
- Other applications include orthotic devices for the foot and facial prostheses for reconstruction following cancer.
- FIG. 1 is a diagram of the arrangement between the patient and the projector/imaging device.
- FIG. 2 is a diagram of one example of a projection pattern.
- the lines connecting the dots are intended only to guide the eye.
- FIG. 3 is a diagram of the appearance of the pattern shown in FIG. 2, projected on a breast.
- FIG. 4 illustrates an example of a non-uniform grid pattern.
- FIG. 5 illustrates an example of a beam-splitter suitable for creating a pattern to be projected on the breast.
- FIG. 6 illustrates a diagram of a beam-scanning systems suitable for creating a pattern to be projected onto the breast.
- FIG. 7 illustrates a diagram of an optical interferometer, on an x-y translation stages, suitable for measuring breast shape.
- FIG. 8 is a diagram of an optical rangefinder for measuring breast shape.
- FIG. 9 is a diagram of an ultrasonic range finder for measuring breast shape.
- FIG. 10 is a diagram of a contact feeler gauge system to measure breast shape.
- FIG. 11 is a diagram of an arrangement to image the breast from all angles with a single imaging device.
- FIG. 12 is a diagram of a two-piece hollow breast prosthesis filled with a viscoelastic material.
- FIG. 13 illustrates a lateral view of the negative and positive mold which is used to form the shell of an external breast prosthesis.
- FIG. 14 is a lateral view of a breast prosthesis with thick walls (for a large breast) or relatively thin walls (for a small breast).
- FIG. 15 is a view of an external breast prosthesis with walls of non-uniform thickness.
- the present invention provides a novel apparatus for measuring the shape of various parts of anatomy, but most importantly a woman's breast, that is quick, non-contact/non-invasive, and results in digital contour information which can b e used to control computer-operated machines to make the mold for an internal or external prosthesis or an orthotic.
- the device is “user-friendly” and can be shipped at low cost to a medical practitioner or prosthesis consultant, who can take the data of the breast contour on the patient without the patient having to visit a fitting specialist or the prosthesis manufacturer.
- the data can be obtained while the patient is in several different positions (as, for example, the breast changes shape when the patient is in different positions), and the data can be sent back to the prosthesis manufacturer electronically.
- the data then can be quickly transformed into a 3-dimensional form of the breast through computer-aided manufacturing thus accelerating the rate of manufacturing considerably so that the patient can receive the prosthesis quickly and with minimal contact.
- These devices may alternatively be used for capturing and digitizing an image of any anatomical part for the purpose of creating prosthetic or orthotic devices which match previously existing parts, for providing bilateral symmetry or for creating a new anatomical part based on aesthetic or practical physical considerations.
- Other applications include orthotic devices for the foot and facial prostheses for reconstruction following cancer.
- the present invention also provides a method of measuring anatomical profiles that has all the benefits described, except that it involves physical contact with the breast or other body part.
- the devices may incorporate an optical color detection system which is used to unambiguously measure the color of the patient's skin (chest wall, pre-operative breast, remaining breast, or other skin) as well as that of the nipple.
- This color information is in the form of a set of standard color coordinates (such as defined by the CIE chromaticity scale), which can also be sent back to the prosthesis manufacturer by modem or through the internet.
- FIG. 1 Further provided in the present invention are methods of manufacturing internal or external prosthetic and orthotic articles which mimic natural body parts in texture and motion characteristics, and in some cases, appearance. Prosthetic articles which move and feel like normal body parts are desirable for various reasons. When patients assume different positions, a prosthetic article that is rigid can be uncomfortable and unappealing in appearance. This is particularly the case when breast prostheses are worn. A more “life-like” breast prosthesis that moves or “drapes” like a natural breast and is soft to the touch will have a more natural appearance and feel than available prosthetic devices currently.
- each module of two or more CCD cameras are first used to capture several images of a specially designed calibration target and corresponding images of an object such as a breast. In this way, the cameras are used to first define a set reference range followed by scanning of the object and precise determination of spatial relationships between key attributes.
- Computer algorithms are used to process the data and combine the attributes from different perspectives into a processed digital image. The images are further transformed digitally to extrapolate curvature and other features.
- greater resolution may be achieved by using optical devices to first project an image, or pattern of images of a known geometrical arrangement, at an object with a known geometric position and orientation with respect to the optical device. This step is followed by detection of the reflected image of the pattern which now appears distorted as a consequence of encountering irregular surfaces.
- Application of simple mathematics may be used to measure the three-dimensional shape of an object, or the orientation of an object of known shape based on the alteration of the geometrical arrangement in three dimensions. These new coordinates are then transformed into a digital reproduction with extremely high resolution.
- a patient with exposed breasts is positioned in an upright position in front of a projection device such as a slide-projector, which is set facing the patient and is level and at the same height as the patient's chest and a known distance from the patient (FIG. 1).
- the image-projector is used to project an image of a pattern (see FIG. 2) onto the breast and/or chest.
- an imaging device Adjacent to the projector, and in a known geometric position and orientation with respect to the projector, is an imaging device such as a charge-coupled-device (CCD) video camera. The video camera images the projected pattern on the chest of the patient (FIG. 3).
- CCD charge-coupled-device
- the video signal is sent to a digitizer, such as a frame-grabber, which stores the image on a computer archival device such as a magnetic hard disk.
- the computer can then calculate the spatial coordinates of the pattern off the digitized image, and then, calculate the shape of the object on which the pattern was projected.
- An exemplary pattern would be a matrix of small spots which are sited at the intersection of grids of a uniform x-y grid (FIG. 2).
- the projection devices and image capturing device may rest on a movable track that rotates around the patient in order to attain a three dimensional perspective (FIG. 11).
- a three dimensional perspective FIG. 11
- multiple images are detected over time while the apparatus is scanning. These images are then combined through algorithms and reduced to a digital format.
- Mathematical interpolation of data needs to be done to establish the shape of the object in regions where no pattern was projected, or where unusual distortion or glare is encountered. This is of greater concern where an image is not projected and cameras are used to capture planar images from different angles. In the case where an image is projected, it is important to project a fine enough pattern such that large gradients in the shape can be measured. For breasts, this would mean that it would be beneficial to project an increasingly fine pattern as one moves laterally or inferiorly further away from the nipple (FIG. 4). Note also that “morphing” software could be used at this stages to interpolate data, and to allow the patient and prosthesis fitter to choose shapes of the relevant anatomy different from the patient's.
- images of a breast may be collected while the patient is in two positions, for example, pronate or supine.
- Morphing may be used to model the flow or motion characteristics of the prosthesis as the patient assumes one position or another. This information can then be used to predict the physical characteristics which must be built into the prosthetic to enable it to move in a natural manner.
- FIG. 5 it is possible to project a visible laser beam through a holographic diffraction pattern generator to create a matrix of spots or a grid-pattern of lines.
- FIG. 6 one can use a laser beam scanner (e.g. mirror on x-y gimbals) which can scan a single laser beam rapidly in any user-selectable pattern.
- the driver for the scanner can be made to dwell at particular points for milliseconds, before moving rapidly to other points; in this way, a human would perceive a pattern of dots.
- the spacing of the spots is controllable by the scanner-driver.
- the use of two or more lasers projecting a beam from different angles will afford greater precision in capturing the image.
- interferometry is a well established technique of measuring distances.
- the use of lasers is well established in interferometry because the laser is collimated, monochromatic and highly directional, thus can be used to measure distance with a high spatial resolution.
- Interferometers have the advantage that they can measure very small distances, but they are relatively expensive.
- three-dimensional information may be captured throughout the use of two or more cameras which capture images with x-y-z coordinates thus enabling depth of field measurements with greater precision where small differences are expected between points or lines.
- FIG. 8 Another way to measure the three-dimensional profile of an object is to use an optical rangefinder.
- These devices typically use a laser, which can project the image of a spot or other shape onto the breast, which is then imaged onto an position sensitive detector (PSD); depending on where the image of the spot falls on the detector, and using simple geometry based on distances and angles, the distance “d” between the breast and the position sensitive detector.
- PSD position sensitive detector
- This geometric rangefinder system can b e scanned using mirror scanners or the detector/source itself can b e scanned on an x-y scanner, as described above.
- Other optical rangefinders which make use of Doppler interferometry would also be useful, although they are typically more expensive than simple geometric rangefinders.
- Ultrasound can also be used to measure the distance between an ultrasound transducer and an object.
- a focused ultrasonic detector positioned in a known orientation with respect to, and a known distance from, the breast.
- the spot on the breast to be investigated can be marked with a laser beam which is collinear with the ultrasound transducer.
- the driver electronics of the ultrasound transducer excites the transducer with a pulse, thereby creating a brief pulse of ultrasound which travels to the breast at the speed of sound.
- the reflected signal returns at the speed of sound to a detector positioned a known distance from, and orientation with respect to, the breast.
- the distance “d” can be accurately calculated. Again, by scanning this detector in an x-y plane, the x-y-z coordinates of the breast can be measured.
- a matrix of feeler-gauges arranged in an x-y matrix and with freedom of movement in the z-direction, are brought into contact with the breast or chest wall (FIG. 10).
- Each of the feeler gauges is calibrated with a scale, or each has a potentiometer which translates the relative z-positions of the gauges to resistance and ultimately to voltage, which can be read out and analyzed serially with an analog-to-digital converter housed in a microcomputer.
- a remote device composed of a similar matrix of feeler gauges in contact with a contiguous flexible coating (e.g. rubberized silicon) such that the change in movement of the gauges corresponds to a reproduction of the shape in the flexible coating.
- This “form” then becomes the element from which the anatomical shape is molded.
- Such a device can provide either a negative or positive impression of the original shape of the anatomical component. Integration of these components into a continuous system would therefor result in a completely integrated computer-aided design and manufacturing (CAD/CAM) system for prosthesis manufacture.
- CAD/CAM computer-aided design and manufacturing
- a slide projector is positioned parallel to the floor of the examination room and at the height of the patient's nipple.
- the projector projects an image of a 64 ⁇ 64 matrix of small dots. This is done by taking a slide photograph of a black piece of paper with a rectangular matrix of white dots.
- Adjacent to the slide projector is a color CCD video camera, the output of which is coupled to a frame-grabber in a microcomputer. The camera is the same distance from the patient as the projector. With the room lights dimmed, the matrix of points is captured and digitized.
- the methods and devices described herein are ideal for creating life-like appendages for use in robotic systems.
- This includes coverings for robotic prosthetic devices whereby the robotic component is covered with a prosthesis that has the appearance of a normal appendage.
- these devices can be used to create a form in any shape or size that mimics other forms such that a whole body or anatomical part can be created for free-moving robots, robotic prosthetic devices or for masks to be worn by individuals.
- This definition includes masks and forms of animals, humans and inanimate objects used in the entertainment industry, for medical purposes or other industrial purpose.
- volume of an anatomical component For example, one may use the three-dimensional information to create a volume measurement either by comparison to an imaged external standard or an internal standard which has been saved in the devices memory.
- One application of this volume measurement is the measurement of chest or abdomen volume in neonates. The volume of the chest or abdomen will increase and decrease with inspiration and expiration, respectively. Volume displacement can be measured by taking multiple readings at various timepoints and extrapolating the difference. This difference relates to lung volume.
- a calibrated color imaging system can be employed to quantify the color in terms of a standard color scale (e.g. Commission Internationale de l'Eclairage (CIE) standard colorimetric scale).
- CIE Commission Internationale de l'Eclairage
- the current invention involves imaging the breast and/or chest of the patient with a CCD color camera, the output of which is attached to a frame grabber in a microcomputer.
- the patient can be photographed with a color digital still camera, or with a black-and-white camera sequentially through red, green and blue filters.
- the patient is illuminated with ambient room lights, but more preferable with a xenon flashlamp or high-intensity incandescent source such as a halogen lamp.
- a set of color standards such as produced by manufacturers of graphics arts color systems, and a white and grayscale reflectance standards, such as available from Kodak Inc., are held adjacent to the patient and when a digital image is taken.
- the digital image can be analyzed later and the color of the breast and nipple can be quantified on a standard and universal color scale.
- the color standards in the image are used to correct for the color of the illuminating light source and the white and grayscale standards correct for light intensity. This quantified color data can be used to match the color of the prosthesis during manufacturing, to the color of the patient's skin.
- electronic reproductions of the body part may be transmitted to a manufacturing center in another location. Digitized coordinates may be coded into computer aided machining or manufacturing processes that can automatically generate model reproductions of the body part. One method of achieving this is through stereolithography. The model can then be used as a template for creating the prosthetic device.
- Digitized coordinates may also be developed based on models or drawings. These coordinates can then be used to generate machined or manufactured parts based on computer aided design. Use of computer aided design, machining and manufacturing for prosthetic and orthotic devices is highly desirable in terms of speed and precision.
- a xenon flashlamp is used to illuminate the breast as the CCD camera captures an image.
- Color and illuminance standards available from Kodak for example, are held by the patient in close proximity of the breast during the image capture.
- color analysis software commercially available (e.g. Adobe Photoshop)
- the color of the breast and nipple is quantified using a CIE chromaticity scale.
- the color and illuminance standards are used to check on the accuracy of the measurement.
- the external shell can be a single or multi-piece (FIG. 12) consisting of a material that is malleable yet firm, such as silastic or other elastomeric material.
- a material that is malleable yet firm such as silastic or other elastomeric material.
- viscous low-density or viscoelastic materials may be contained within the prosthesis to give it shape and movement similar to a real anatomical part.
- the prosthetic or orthotic may be composed entirely of such viscoelastic material with or without a n exterior coating.
- the shape of the shell is defined by measurements taken of the remaining breast and chest wall after surgery.
- the shape may be modeled after a selection from a library of collected shapes or measurements.
- the anterior aspect of the external shell is constructed by creating a negative mold of the breast shape, applying the shell material in it's uncured form to the negative mold, and then pressing in a positive mold of the breast that is the same shape as the negative mold, but smaller in size (FIG. 13). This process of using two molds ensures that the shell of the prosthesis is of consistent thickness.
- the desirable thickness depends on the shape and mass of the breast. For example (FIG. 14), in order to get an aesthetically appealing change in shape of a small breast when the patient changes position from a supine to an upright position, it is necessary to create relatively thin walls. Alternatively, a more massive breast should have a thicker wall in order to avoid body position changes that lead to an unattractive, pendulous breast.
- the walls of the breast prosthesis can be of non-uniform thickness (FIG. 15) in order to give the prosthesis a non-uniform rigidity thus resulting in shape and motions (when the patient moves) similar to real breasts. For example, the skin at the inferior aspect of a real breast is thicker than at the superior aspect.
- This structure results in a mechanical motion to the breast that is unique, recognizable and desirable.
- the anterior shell surface is placed with the nipple facing downwards and the hollow cavity defined by the shell is filled with a viscoelastic material.
- the materials that would be best suited for the internal cavity fill would be light (i.e. low density), a poor conductor of heat (i.e. low thermal conductivity), have continuum-mechanical properties (e.g. Young's modulus, compressibility etc.) like tissue, would be cheap, non-toxic and in a pourable form whereupon it subsequently takes on selectable properties.
- such materials may be used as filler in a single piece prosthesis that is hollow or in multi-piece devices that are sealed together.
- suitable materials would be soybean oil, agar, gelatin, silicone, biologically inert polymers, etc. These materials could optionally be highly aerated in order to maintain minimal weight.
- An example of such a material is that which is incorporated into the children's toy called “Gak”TM.
- a material, part of which has been photochemically cross-linked in order to set suitable mechanical properties can be used (for example, acrylamide).
- a potentially suitable material would be a silica-aerogel, which has exceptionally low density (0.003-0.35 g/cm 3 ) and low thermal conductivity ( ⁇ 0.017 W/mK).
- the material could be poured into the mold or directly into the prosthesis in various stages, and each pouring could consist of a filler with different properties (such as density) in order to establish a non-uniform mechanical property of the breast as a whole, thus making it more life-like in it's motional behavior.
- Lattice structures and “aerogels” may also be used to form a solid one piece design that provides such memory and shape characteristics. Further, such lattice structures may be used to provide compartments within the prosthesis that could be filled appropriate liquids or gels.
- the outer or anterior breast form may be molded of such plastic material that has memory characteristics which facilitate its return to its original shape following once the patient resumes the supine position.
- the added viscoelastic material will allow the breast to assume a different, natural shape, akin to a normal breast. Adjusting density and elasticity will permit the shape to change gradually and the rate of movement would be proportional to the adjusted density.
- such materials are compressible so that, when density is matched to a normal breast, a natural, more life-like feel is obtained. Following compression, or any physical event that alters the form from the original shape, the memory characteristics allow the breast to resume its original shape and form, provided the patient is in such position after which the shape was originally molded.
- the posterior and anterior surfaces are affixed together using a permanent or detachable adhesive.
- the final result is a breast that changes shape, like a real breast, with the changing body positions of the patient and while fitted into different articles of clothing.
- Weight and compressibility may be adjusted through altering density of filler so as to mimic the natural “feel” of a normal breast or as determined to optimize patient comfort. In many cases, lighter weight prostheses are desirable for patient comfort.
- the posterior aspect of the prosthesis fits snugly against the remaining chest wall.
- the posterior aspect of the prosthesis may optionally be composed of a plastic material with lattice-like structure, such as aerogel, that is a poor heat conductor and has good “breathing” properties.
- These prostheses are compatible with common materials found in garments such as cotton, nylon and wool.
- Antifungicides and antibacteriocides can be incorporated in the shell in order to minimize the formation of unwanted biological substances.
- the color of the breast and nipple are matched to the existing breast or pre-operative breast.
- the shell material can be colored with the addition of compounds in order to match the color of the patient's remaining skin.
- the nipple can take on it's color, which is distinctive from the rest of the breast, by the addition of a colorant or separate piece of wall material or darker color, at this stage.
- orthotic devices for feet are generally composed of solid, firm materials such as hard plastic or metals.
- the use of soft, pliable materials provide the advantage of flexibility.
- Hollow orthotics provide the characteristic of compressibility.
- Use of viscoelastic fillers and/or layers of variable density can provide a means for the orthotic to form to the foot with greater ease. Such applications are particularly useful i n athletic footwear where flexibility and responsivity are an issue.
- a prosthesis or orthotic filled with a magneto- or electro-rheological fluid would allow the user to adjust the “stiffness” of the prosthesis by applying a variable magnetic or electric field to the fluid.
- a magneto- or electro-rheological fluid which are available commercially
- An penile implant or external penile prosthesis would benefit from such a user-controllable mechanical effect.
- the external shell is constructed by creating a negative mold of the breast shape, based on profilometric measurements taken of the existing breast or based on a data base of breast shapes, applying an uncured “memory” polymer. These materials are found in some children's toys, for example in the outer surface of the toy called “Stretch Armstrong”.
- An elastic polymer with memory forms an outer shell, which is filled with corn syrup.
- the color of the polymer is altered, with additives such as dye, to match the color of the patient's skin.
- a piece of the polymer, shaped and colored like the patient's nipple, is placed in the bottom of the negative mold prior to the pouring in of the remaining shell material.
- the wall thickness (for an average size breast) would be about 5 mm thick on the inferior aspect of the breast and 2 mm thick on the superior aspect.
- the anterior shell surface is placed with the nipple facing downwards and the hollow cavity defined by the shell is filled with corn syrup.
- a posterior prosthetic surface is created as the anterior form, but based on the shape of the patient's chest wall.
- the posterior and anterior surfaces are affixed together using a permanent adhesive such as silicone sealant.
- a removable cotton fabric liner is affixed, with Velcro, on the posterior aspect of the prosthesis.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Pathology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- General Physics & Mathematics (AREA)
- Cardiology (AREA)
- Transplantation (AREA)
- Vascular Medicine (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Reproductive Health (AREA)
- Computer Graphics (AREA)
- Software Systems (AREA)
- Theoretical Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Manufacturing & Machinery (AREA)
- Geometry (AREA)
- Gynecology & Obstetrics (AREA)
- Dentistry (AREA)
- Prostheses (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Corsets Or Brassieres (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The present invention provides a novel apparatus for measuring the shape of various parts of anatomy, and alternatively capturing and digitizing an image of the part for the purpose of creating prosthetic or orthotic devices. Also provided are methods of measuring anatomical profiles involving physical contact with the body parts, and methods of manufacturing internal or external prosthetic and orthotic articles which mimic natural body parts in texture and motion characteristics, and in some cases, appearance.
Description
- This non-provisional patent application claims benefit of provisional patent application U.S. Serial No. 60/201,593, filed May 3, 2000, now abandoned.
- 1. Field of the Invention
- The present invention relates generally to the fields of imaging and biomedical devices. More specifically, the present invention relates to prosthesis profilometry and manufacture.
- 2. Description of the Related Art
- In the United States, between 1990 and 1994, the incidence of developing breast cancer stabilized at approximately 110 cases per 100,000 women. Women who develop breast cancer have a 5-year relative survival rate of 79-87%.
- Often, women who have had breast cancer and receive a mastectomy, choose to use a breast prosthesis to hide the loss of one or both breasts, and to give an outward appearance to others and themselves as aesthetically appealling. Today, there are about 1,000,000 women wearing external (i.e., not implanted) breast prostheses, and about 100,000 new fittings are done every year. Many more implants of internal breast prostheses are done every year.
- While there are several different models of external breast prostheses, they are imperfect either because of a multitude of reasons, such as having an unattractive shape, a shape different from the remaining breast (if one remains), and because the color does not match that of the patient's skin. The forms of internal prostheses are typically only poor representations of the shape of a real breast. While recent technological advances have led to the development of hollow external breast prosthesis, there is still a limitation in the ease at which these and other external prostheses are fitted as they require that the patient visit a mold-maker whereupon a negative impression of her breast(s) is made. Not only is this inconvenient and potentially expensive, but by using material such as plaster-of-paris to make the mold, and by having the patient in a prone or other position during the molding process, the shape obtained is not only unique to the shape of the breast while the patient is in that position, but it is slightly altered by the additional weight of the plaster.
- The prior art is deficient in the lack of effective apparatus and/or methods for measuring the shape of various parts of anatomy. The present invention fulfills this long-standing need and desire in the art.
- The present invention provides a novel apparatus for measuring the shape of various parts of anatomy that is quick, non-contact, and results in digital contour information which can be used to control computer-operated machines to make the mold for an internal or external prosthesis or an orthotic. These devices may alternatively be used for capturing and digitizing an image of any anatomical part for the purpose of creating prosthetic or orthotic devices which match previously existing parts, for providing bilateral symmetry or for creating a new anatomical part based on aesthetic or practical physical considerations. Other applications include orthotic devices for the foot and facial prostheses for reconstruction following cancer.
- Also provided are methods of measuring anatomical profiles involving physical contact with the breast or other body parts, and methods of manufacturing internal or external prosthetic and orthotic articles which mimic natural body parts in texture and motion characteristics, and in some cases, appearance.
- Other and further aspects, features, and advantages of the present invention will be apparent from the following description of the presently preferred embodiments of the invention given for the purpose of disclosure.
- So that the matter in which the above-recited features, advantages and objects of the invention, as well as others which will become clear, are attained and can be understood in detail, more particular descriptions of the invention briefly summarized above may be had by reference to certain embodiments thereof which are illustrated in the appended drawings. These drawings form a part of the specification. It is to be noted, however, that the appended drawings illustrate preferred embodiments of the invention and therefore are not to be considered limiting in their scope.
- FIG. 1 is a diagram of the arrangement between the patient and the projector/imaging device.
- FIG. 2 is a diagram of one example of a projection pattern. The lines connecting the dots are intended only to guide the eye.
- FIG. 3 is a diagram of the appearance of the pattern shown in FIG. 2, projected on a breast.
- FIG. 4 illustrates an example of a non-uniform grid pattern.
- FIG. 5 illustrates an example of a beam-splitter suitable for creating a pattern to be projected on the breast.
- FIG. 6 illustrates a diagram of a beam-scanning systems suitable for creating a pattern to be projected onto the breast.
- FIG. 7 illustrates a diagram of an optical interferometer, on an x-y translation stages, suitable for measuring breast shape.
- FIG. 8 is a diagram of an optical rangefinder for measuring breast shape.
- FIG. 9 is a diagram of an ultrasonic range finder for measuring breast shape.
- FIG. 10 is a diagram of a contact feeler gauge system to measure breast shape.
- FIG. 11 is a diagram of an arrangement to image the breast from all angles with a single imaging device.
- FIG. 12 is a diagram of a two-piece hollow breast prosthesis filled with a viscoelastic material.
- FIG. 13 illustrates a lateral view of the negative and positive mold which is used to form the shell of an external breast prosthesis.
- FIG. 14 is a lateral view of a breast prosthesis with thick walls (for a large breast) or relatively thin walls (for a small breast).
- FIG. 15 is a view of an external breast prosthesis with walls of non-uniform thickness.
- The present invention provides a novel apparatus for measuring the shape of various parts of anatomy, but most importantly a woman's breast, that is quick, non-contact/non-invasive, and results in digital contour information which can b e used to control computer-operated machines to make the mold for an internal or external prosthesis or an orthotic. The device is “user-friendly” and can be shipped at low cost to a medical practitioner or prosthesis consultant, who can take the data of the breast contour on the patient without the patient having to visit a fitting specialist or the prosthesis manufacturer. The data can be obtained while the patient is in several different positions (as, for example, the breast changes shape when the patient is in different positions), and the data can be sent back to the prosthesis manufacturer electronically. The data then can be quickly transformed into a 3-dimensional form of the breast through computer-aided manufacturing thus accelerating the rate of manufacturing considerably so that the patient can receive the prosthesis quickly and with minimal contact.
- These devices may alternatively be used for capturing and digitizing an image of any anatomical part for the purpose of creating prosthetic or orthotic devices which match previously existing parts, for providing bilateral symmetry or for creating a new anatomical part based on aesthetic or practical physical considerations. Other applications include orthotic devices for the foot and facial prostheses for reconstruction following cancer.
- The present invention also provides a method of measuring anatomical profiles that has all the benefits described, except that it involves physical contact with the breast or other body part.
- Furthermore, the devices may incorporate an optical color detection system which is used to unambiguously measure the color of the patient's skin (chest wall, pre-operative breast, remaining breast, or other skin) as well as that of the nipple. This color information is in the form of a set of standard color coordinates (such as defined by the CIE chromaticity scale), which can also be sent back to the prosthesis manufacturer by modem or through the internet.
- Further provided in the present invention are methods of manufacturing internal or external prosthetic and orthotic articles which mimic natural body parts in texture and motion characteristics, and in some cases, appearance. Prosthetic articles which move and feel like normal body parts are desirable for various reasons. When patients assume different positions, a prosthetic article that is rigid can be uncomfortable and unappealing in appearance. This is particularly the case when breast prostheses are worn. A more “life-like” breast prosthesis that moves or “drapes” like a natural breast and is soft to the touch will have a more natural appearance and feel than available prosthetic devices currently.
- The following examples are given for the purpose of illustrating various embodiments of the invention and are not meant to limit the present invention in any fashion.
- Profilometry
- In the present study, multiple cameras in a fixed location relative to the patient can capture different perspective images. Each module of two or more CCD cameras are first used to capture several images of a specially designed calibration target and corresponding images of an object such as a breast. In this way, the cameras are used to first define a set reference range followed by scanning of the object and precise determination of spatial relationships between key attributes. Computer algorithms are used to process the data and combine the attributes from different perspectives into a processed digital image. The images are further transformed digitally to extrapolate curvature and other features.
- Alternatively, greater resolution may be achieved by using optical devices to first project an image, or pattern of images of a known geometrical arrangement, at an object with a known geometric position and orientation with respect to the optical device. This step is followed by detection of the reflected image of the pattern which now appears distorted as a consequence of encountering irregular surfaces. Application of simple mathematics may be used to measure the three-dimensional shape of an object, or the orientation of an object of known shape based on the alteration of the geometrical arrangement in three dimensions. These new coordinates are then transformed into a digital reproduction with extremely high resolution.
- To measure the shape of a breast and other relevant anatomy such as the chest wall, a patient with exposed breasts is positioned in an upright position in front of a projection device such as a slide-projector, which is set facing the patient and is level and at the same height as the patient's chest and a known distance from the patient (FIG. 1). The image-projector is used to project an image of a pattern (see FIG. 2) onto the breast and/or chest. Adjacent to the projector, and in a known geometric position and orientation with respect to the projector, is an imaging device such as a charge-coupled-device (CCD) video camera. The video camera images the projected pattern on the chest of the patient (FIG. 3). The video signal is sent to a digitizer, such as a frame-grabber, which stores the image on a computer archival device such as a magnetic hard disk. The computer can then calculate the spatial coordinates of the pattern off the digitized image, and then, calculate the shape of the object on which the pattern was projected. An exemplary pattern would be a matrix of small spots which are sited at the intersection of grids of a uniform x-y grid (FIG. 2).
- In order to establish the profile of the breasts and chest wall when the patient is in various positions, the above procedure could be repeated with the patient in other positions (supine, for example). Improved information might result if the discussed measurements are taken of the breast from several different directions, such as laterally, anterior-posterior and coronary. This information may be used to model prostheses which assume a natural shape when the patient assumes different positions.
- To further enhance resolution, the projection devices and image capturing device may rest on a movable track that rotates around the patient in order to attain a three dimensional perspective (FIG. 11). In this case, multiple images are detected over time while the apparatus is scanning. These images are then combined through algorithms and reduced to a digital format.
- Mathematical interpolation of data needs to be done to establish the shape of the object in regions where no pattern was projected, or where unusual distortion or glare is encountered. This is of greater concern where an image is not projected and cameras are used to capture planar images from different angles. In the case where an image is projected, it is important to project a fine enough pattern such that large gradients in the shape can be measured. For breasts, this would mean that it would be beneficial to project an increasingly fine pattern as one moves laterally or inferiorly further away from the nipple (FIG. 4). Note also that “morphing” software could be used at this stages to interpolate data, and to allow the patient and prosthesis fitter to choose shapes of the relevant anatomy different from the patient's.
- In one application of morphing, images of a breast may be collected while the patient is in two positions, for example, pronate or supine. Morphing may be used to model the flow or motion characteristics of the prosthesis as the patient assumes one position or another. This information can then be used to predict the physical characteristics which must be built into the prosthetic to enable it to move in a natural manner.
- There are manifold ways to project an image onto the breasts. For example (FIG. 5), it is possible to project a visible laser beam through a holographic diffraction pattern generator to create a matrix of spots or a grid-pattern of lines. Alternatively (FIG. 6), one can use a laser beam scanner (e.g. mirror on x-y gimbals) which can scan a single laser beam rapidly in any user-selectable pattern. The driver for the scanner can be made to dwell at particular points for milliseconds, before moving rapidly to other points; in this way, a human would perceive a pattern of dots. The spacing of the spots is controllable by the scanner-driver. The use of two or more lasers projecting a beam from different angles will afford greater precision in capturing the image.
- There are other ways to measure the three-dimensional profile of an object. For example, interferometry is a well established technique of measuring distances. The use of lasers is well established in interferometry because the laser is collimated, monochromatic and highly directional, thus can be used to measure distance with a high spatial resolution. In the case of measuring breast profiles, it would be possible to set up a low-intensity visible diode laser which is directed towards the breast, and which is scanned either on an x-y scanner (FIG. 7), or is scanned in an x-y pattern from a point. Interferometers have the advantage that they can measure very small distances, but they are relatively expensive. Alternatively, three-dimensional information may be captured throughout the use of two or more cameras which capture images with x-y-z coordinates thus enabling depth of field measurements with greater precision where small differences are expected between points or lines.
- Another way to measure the three-dimensional profile of an object is to use an optical rangefinder. These devices (FIG. 8) typically use a laser, which can project the image of a spot or other shape onto the breast, which is then imaged onto an position sensitive detector (PSD); depending on where the image of the spot falls on the detector, and using simple geometry based on distances and angles, the distance “d” between the breast and the position sensitive detector. This geometric rangefinder system can b e scanned using mirror scanners or the detector/source itself can b e scanned on an x-y scanner, as described above. Other optical rangefinders which make use of Doppler interferometry would also be useful, although they are typically more expensive than simple geometric rangefinders.
- Ultrasound can also be used to measure the distance between an ultrasound transducer and an object. In this case (FIG. 9), a focused ultrasonic detector positioned in a known orientation with respect to, and a known distance from, the breast. The spot on the breast to be investigated can be marked with a laser beam which is collinear with the ultrasound transducer. The driver electronics of the ultrasound transducer excites the transducer with a pulse, thereby creating a brief pulse of ultrasound which travels to the breast at the speed of sound. The reflected signal returns at the speed of sound to a detector positioned a known distance from, and orientation with respect to, the breast. Based on the time between the incident and reflected pulses, and knowing the speed of sound in the atmospheric conditions during which the measurement was made, the distance “d” can be accurately calculated. Again, by scanning this detector in an x-y plane, the x-y-z coordinates of the breast can be measured.
- While there are some disadvantages to a contact technique of measuring anatomical shapes, especially breast and chest-wall profiles, such an approach can be simple to use and inexpensive to implement. In this case, a matrix of feeler-gauges, arranged in an x-y matrix and with freedom of movement in the z-direction, are brought into contact with the breast or chest wall (FIG. 10). Each of the feeler gauges is calibrated with a scale, or each has a potentiometer which translates the relative z-positions of the gauges to resistance and ultimately to voltage, which can be read out and analyzed serially with an analog-to-digital converter housed in a microcomputer. These digital measurements can then be transferred to a remote device composed of a similar matrix of feeler gauges in contact with a contiguous flexible coating (e.g. rubberized silicon) such that the change in movement of the gauges corresponds to a reproduction of the shape in the flexible coating. This “form” then becomes the element from which the anatomical shape is molded. Such a device can provide either a negative or positive impression of the original shape of the anatomical component. Integration of these components into a continuous system would therefor result in a completely integrated computer-aided design and manufacturing (CAD/CAM) system for prosthesis manufacture.
- Using profilometry of a breast as an example, the patient is first positioned upright and facing forwards with exposed breasts. At a precisely measured distance from the patient (perhaps 6 feet away), a slide projector is positioned parallel to the floor of the examination room and at the height of the patient's nipple. The projector projects an image of a 64×64 matrix of small dots. This is done by taking a slide photograph of a black piece of paper with a rectangular matrix of white dots. Adjacent to the slide projector is a color CCD video camera, the output of which is coupled to a frame-grabber in a microcomputer. The camera is the same distance from the patient as the projector. With the room lights dimmed, the matrix of points is captured and digitized. Immediately afterwards, the same measurement is done on a flat piece of paper positioned orthogonal to a line drawn from the projector/camera and paper; this image of the array on paper serves to verify calibration of the setup. Using mathematical formulas that describe the real position in space of a point (x,y,z) which based on the face that a uniform grid of points was projected, and if the surface was flat and orthogonal, should be at (x′,y′,z′). This matrix can be expanded into an arbitrary number of elements by mathematical interpolation or by using commercially available morphing software.
- Anatomically Correct Robotic Appendages and Masks
- The methods and devices described herein are ideal for creating life-like appendages for use in robotic systems. This includes coverings for robotic prosthetic devices whereby the robotic component is covered with a prosthesis that has the appearance of a normal appendage. Furthermore, these devices can be used to create a form in any shape or size that mimics other forms such that a whole body or anatomical part can be created for free-moving robots, robotic prosthetic devices or for masks to be worn by individuals. This definition includes masks and forms of animals, humans and inanimate objects used in the entertainment industry, for medical purposes or other industrial purpose.
- Volume Measurement
- It is a further object of the present study to measure volume of an anatomical component. For example, one may use the three-dimensional information to create a volume measurement either by comparison to an imaged external standard or an internal standard which has been saved in the devices memory. One application of this volume measurement is the measurement of chest or abdomen volume in neonates. The volume of the chest or abdomen will increase and decrease with inspiration and expiration, respectively. Volume displacement can be measured by taking multiple readings at various timepoints and extrapolating the difference. This difference relates to lung volume.
- Skin Color Measurement
- When it is desirous to match the color of the prosthesis with the skin color of the patient's chest and/or remaining breast, a calibrated color imaging system can be employed to quantify the color in terms of a standard color scale (e.g. Commission Internationale de l'Eclairage (CIE) standard colorimetric scale). The current invention involves imaging the breast and/or chest of the patient with a CCD color camera, the output of which is attached to a frame grabber in a microcomputer. Alternatively, the patient can be photographed with a color digital still camera, or with a black-and-white camera sequentially through red, green and blue filters. The patient is illuminated with ambient room lights, but more preferable with a xenon flashlamp or high-intensity incandescent source such as a halogen lamp. A set of color standards, such as produced by manufacturers of graphics arts color systems, and a white and grayscale reflectance standards, such as available from Kodak Inc., are held adjacent to the patient and when a digital image is taken. The digital image can be analyzed later and the color of the breast and nipple can be quantified on a standard and universal color scale. The color standards in the image are used to correct for the color of the illuminating light source and the white and grayscale standards correct for light intensity. This quantified color data can be used to match the color of the prosthesis during manufacturing, to the color of the patient's skin.
- In all cases, electronic reproductions of the body part may be transmitted to a manufacturing center in another location. Digitized coordinates may be coded into computer aided machining or manufacturing processes that can automatically generate model reproductions of the body part. One method of achieving this is through stereolithography. The model can then be used as a template for creating the prosthetic device.
- Digitized coordinates may also be developed based on models or drawings. These coordinates can then be used to generate machined or manufactured parts based on computer aided design. Use of computer aided design, machining and manufacturing for prosthetic and orthotic devices is highly desirable in terms of speed and precision.
- In this case, a xenon flashlamp is used to illuminate the breast as the CCD camera captures an image. Color and illuminance standards, available from Kodak for example, are held by the patient in close proximity of the breast during the image capture. With color analysis software commercially available (e.g. Adobe Photoshop), the color of the breast and nipple is quantified using a CIE chromaticity scale. The color and illuminance standards are used to check on the accuracy of the measurement.
- Manufacturing Prostheses
- Application of the present invention is not intended to limit to breast prostheses. Superior prostheses of other body parts as well as improved orthotics are also applicable.
- For manufacturing, the external shell can be a single or multi-piece (FIG. 12) consisting of a material that is malleable yet firm, such as silastic or other elastomeric material. Optionally, viscous low-density or viscoelastic materials may be contained within the prosthesis to give it shape and movement similar to a real anatomical part. Alternatively, the prosthetic or orthotic may be composed entirely of such viscoelastic material with or without a n exterior coating. For breast prostheses worn externally or used in implants, the shape of the shell is defined by measurements taken of the remaining breast and chest wall after surgery. Alternatively, the shape may be modeled after a selection from a library of collected shapes or measurements. In the case of a multi-piece shell, the anterior aspect of the external shell is constructed by creating a negative mold of the breast shape, applying the shell material in it's uncured form to the negative mold, and then pressing in a positive mold of the breast that is the same shape as the negative mold, but smaller in size (FIG. 13). This process of using two molds ensures that the shell of the prosthesis is of consistent thickness.
- The desirable thickness depends on the shape and mass of the breast. For example (FIG. 14), in order to get an aesthetically appealing change in shape of a small breast when the patient changes position from a supine to an upright position, it is necessary to create relatively thin walls. Alternatively, a more massive breast should have a thicker wall in order to avoid body position changes that lead to an unattractive, pendulous breast. Optionally, the walls of the breast prosthesis can be of non-uniform thickness (FIG. 15) in order to give the prosthesis a non-uniform rigidity thus resulting in shape and motions (when the patient moves) similar to real breasts. For example, the skin at the inferior aspect of a real breast is thicker than at the superior aspect. This structure results in a mechanical motion to the breast that is unique, recognizable and desirable. By adjusting the thickness of the prosthetic device so that it varies in different portions of the prosthesis, and by filling the prosthesis with a viscoelastic or flowing material, one can manufacture a prosthesis that is lifelike in its draping characteristics and soft to the touch.
- Once cured, the anterior shell surface is placed with the nipple facing downwards and the hollow cavity defined by the shell is filled with a viscoelastic material. The materials that would be best suited for the internal cavity fill would be light (i.e. low density), a poor conductor of heat (i.e. low thermal conductivity), have continuum-mechanical properties (e.g. Young's modulus, compressibility etc.) like tissue, would be cheap, non-toxic and in a pourable form whereupon it subsequently takes on selectable properties. Optionally, such materials may be used as filler in a single piece prosthesis that is hollow or in multi-piece devices that are sealed together.
- Examples of suitable materials would be soybean oil, agar, gelatin, silicone, biologically inert polymers, etc. These materials could optionally be highly aerated in order to maintain minimal weight. An example of such a material is that which is incorporated into the children's toy called “Gak”™. Alternatively, a material, part of which has been photochemically cross-linked in order to set suitable mechanical properties, can be used (for example, acrylamide). A potentially suitable material would be a silica-aerogel, which has exceptionally low density (0.003-0.35 g/cm3) and low thermal conductivity (˜0.017 W/mK). The material could be poured into the mold or directly into the prosthesis in various stages, and each pouring could consist of a filler with different properties (such as density) in order to establish a non-uniform mechanical property of the breast as a whole, thus making it more life-like in it's motional behavior. Lattice structures and “aerogels” may also be used to form a solid one piece design that provides such memory and shape characteristics. Further, such lattice structures may be used to provide compartments within the prosthesis that could be filled appropriate liquids or gels.
- The outer or anterior breast form may be molded of such plastic material that has memory characteristics which facilitate its return to its original shape following once the patient resumes the supine position. When the patient assumes other positions, the added viscoelastic material will allow the breast to assume a different, natural shape, akin to a normal breast. Adjusting density and elasticity will permit the shape to change gradually and the rate of movement would be proportional to the adjusted density. Further, such materials are compressible so that, when density is matched to a normal breast, a natural, more life-like feel is obtained. Following compression, or any physical event that alters the form from the original shape, the memory characteristics allow the breast to resume its original shape and form, provided the patient is in such position after which the shape was originally molded.
- While taking care that no significantly large air bubbles are trapped, the posterior and anterior surfaces are affixed together using a permanent or detachable adhesive. The final result is a breast that changes shape, like a real breast, with the changing body positions of the patient and while fitted into different articles of clothing. Weight and compressibility may be adjusted through altering density of filler so as to mimic the natural “feel” of a normal breast or as determined to optimize patient comfort. In many cases, lighter weight prostheses are desirable for patient comfort.
- The posterior aspect of the prosthesis fits snugly against the remaining chest wall. In order to minimize sweating and associated problems such as the formation of fungal infections, the posterior aspect of the prosthesis may optionally be composed of a plastic material with lattice-like structure, such as aerogel, that is a poor heat conductor and has good “breathing” properties. These prostheses are compatible with common materials found in garments such as cotton, nylon and wool. Antifungicides and antibacteriocides can be incorporated in the shell in order to minimize the formation of unwanted biological substances.
- It may be of benefit to texture the external or internal prosthesis for the purpose of life-like appearance (in the case of the former) or for preventing significant adhesions (in the case of the latter. This texturing can be done after the molding process, but would be easier to do by texturing the negative or positive mold prior to molding.
- Finally, the color of the breast and nipple are matched to the existing breast or pre-operative breast. The shell material can be colored with the addition of compounds in order to match the color of the patient's remaining skin. The nipple can take on it's color, which is distinctive from the rest of the breast, by the addition of a colorant or separate piece of wall material or darker color, at this stage. Once the external shell has had time to cure and achieve a consistency whereby it holds its integrity, then the posterior aspect of the shell is constructed. This surface is shaped to conform to the remaining chest wall of the patient, and is formed in the same was as the anterior surface; by applying an uncured material to a positive mold of the chest wall. As before, a negative mold is used to ensure uniform thickness of the posterior surface.
- The technology is not limited to breast form development and may be used to develop any orthotic or prosthetic devices where motion and comfort issues are critical. For example, orthotic devices for feet are generally composed of solid, firm materials such as hard plastic or metals. The use of soft, pliable materials provide the advantage of flexibility. Hollow orthotics provide the characteristic of compressibility. Use of viscoelastic fillers and/or layers of variable density can provide a means for the orthotic to form to the foot with greater ease. Such applications are particularly useful i n athletic footwear where flexibility and responsivity are an issue.
- Finally, a prosthesis or orthotic filled with a magneto- or electro-rheological fluid (which are available commercially) would allow the user to adjust the “stiffness” of the prosthesis by applying a variable magnetic or electric field to the fluid. Such technology has not been incorporated into prostheses or orthotics. An penile implant or external penile prosthesis would benefit from such a user-controllable mechanical effect.
- One specific design in the case of a multi-piece external breast prosthesis is as follows: the external shell is constructed by creating a negative mold of the breast shape, based on profilometric measurements taken of the existing breast or based on a data base of breast shapes, applying an uncured “memory” polymer. These materials are found in some children's toys, for example in the outer surface of the toy called “Stretch Armstrong”. An elastic polymer with memory forms an outer shell, which is filled with corn syrup. The color of the polymer is altered, with additives such as dye, to match the color of the patient's skin. A piece of the polymer, shaped and colored like the patient's nipple, is placed in the bottom of the negative mold prior to the pouring in of the remaining shell material. The wall thickness (for an average size breast) would be about 5 mm thick on the inferior aspect of the breast and 2 mm thick on the superior aspect.
- Once cured, the anterior shell surface is placed with the nipple facing downwards and the hollow cavity defined by the shell is filled with corn syrup. A posterior prosthetic surface is created as the anterior form, but based on the shape of the patient's chest wall. Next, the posterior and anterior surfaces are affixed together using a permanent adhesive such as silicone sealant. A removable cotton fabric liner is affixed, with Velcro, on the posterior aspect of the prosthesis.
- Any patents or publications mentioned in this specification are indicative of the levels of those skilled in the art to which the invention pertains. These patents and publications are herein incorporated by reference to the same extent as if each individual publication was specifically and individually indicated to be incorporated by reference.
- One skilled in the art will readily appreciate that the present invention is well adapted to carry out the objects and obtain the ends and advantages mentioned, as well as those inherent therein. The present examples along with the methods, procedures, treatments, molecules, and specific compounds described herein are presently representative of preferred embodiments, are exemplary, and are not intended as limitations on the scope of the invention. Changes therein and other uses will occur to those skilled in the art which are encompassed within the spirit of the invention as defined by the scope of the claims.
Claims (24)
1. A method of imaging an object of an individual, comprising the steps of:
capturing perspective images in a fixed location relative to the individual using multiple cameras;
capturing images of a calibration target;
processing the data using a computer algorithm into a processed digital image.
2. A method of imaging a breast or chest of an individual, comprising the steps of:
positioning said individual with exposed breasts in front of a projection device such as a slide-projector, said device facing said individual, is level and at the same height as said individual's chest and at a known distance from the individual;
projecting an image of a pattern onto the breast and/or chest;
imaging the projected pattern on the chest of the individual using an imaging device;
digitizing and storing said image; and
calculating spatial coordinates of the pattern off the digitized image and calculating the shape of the object on which the pattern was projected.
3. The method of claim 2 , wherein said imaging device is a charge-coupled-device video camera.
4. The method of claim 2 , wherein said digitizing is performed using a frame-grabber.
5. The method of claim 2 , wherein said image is stored on a computer archival device such as a magnetic hard disk.
6. The method of claim 2 , wherein said individual in an upright position or a supine position.
7. The method of claim 2 , wherein said breast are imaged from several different directions, such as laterally, anterior-posterior and coronary.
8. The method of claim 2 , wherein said projection devices and image capturing device rest on a movable track that rotates around the patient in order to attain a three dimensional perspective.
9. The method of claim 2 , wherein an increasingly fine pattern is projected as one moves laterally or inferiorly further away from the nipple.
10. The method of claim 2 , wherein morphing software is used to model the flow or motion characteristics of a prosthesis as the individual assumes one position or another.
11. A method of measuring a three-dimensional profile of an object of an individual, comprising the steps of:
positioning said individual upright and facing forwards with exposed breasts;
positioning a slide projector parallel to the floor of the examination room and at the height of the patient's nipple;
projecting an image of a 64×64 matrix of small dots onto said object;
capturing and digitizing said matrix of points;
determining the real position in space of a point so as to provide a three-dimensional profile of an object.
12. The method of claim 11 , wherein volume of an anatomical component is measured by using the three-dimensional information to create a volume measurement either by comparison to an imaged external standard or an internal standard which has been saved in the devices memory.
13. A breast prosthesis, comprising
an external shell, said shell molded to fit the shape of a breast; and
a hollow cavity defined by the shell, said cavity filled with a viscoelastic material.
14. The breast prosthesis of claim 13 , wherein said shell is a single or multi-piece.
15. The breast prosthesis of claim 14 , wherein said shell comprises of an elastomeric material.
16. The breast prosthesis of claim 15 , wherein said elastomeric material is silastic.
17. The breast prosthesis of claim 13 , further comprising viscous low-density or viscoelastic materials contained within the prosthesis.
18. The breast prosthesis of claim 13 , wherein the walls of said prosthesis are thin.
19. The breast prosthesis of claim 13 , wherein the walls of the breast prosthesis have a non-uniform thickness.
20. The breast prosthesis of claim 13 , wherein the viscoelastic material has (1) a low density), (2) has low thermal conductivity, (3) has continuum-mechanical properties similar to human tissue, and (4) is in a pourable form.
21. The breast prosthesis of claim 20 , wherein the viscoelastic material is selected from the group consisting of soybean oil, agar, gelatin, silicone, and biologically inert polymers.
22. The breast prosthesis of claim 20 , wherein the viscoelastic material is silica-aerogel.
23. The breast prosthesis of claim 13 , wherein the posterior aspect of the prosthesis is composed of a plastic material having a lattice-like structure.
24. The breast prosthesis of claim 13 , further comprising an antifungicide and/or an antibacteriocide incorporated in the shell.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/421,543 US20030195623A1 (en) | 2000-05-03 | 2003-04-23 | Prosthesis and method of making |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US20159300P | 2000-05-03 | 2000-05-03 | |
US09/847,361 US6564086B2 (en) | 2000-05-03 | 2001-05-02 | Prosthesis and method of making |
US10/421,543 US20030195623A1 (en) | 2000-05-03 | 2003-04-23 | Prosthesis and method of making |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/847,361 Division US6564086B2 (en) | 2000-05-03 | 2001-05-02 | Prosthesis and method of making |
Publications (1)
Publication Number | Publication Date |
---|---|
US20030195623A1 true US20030195623A1 (en) | 2003-10-16 |
Family
ID=22746457
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/847,361 Expired - Fee Related US6564086B2 (en) | 2000-05-03 | 2001-05-02 | Prosthesis and method of making |
US10/421,543 Abandoned US20030195623A1 (en) | 2000-05-03 | 2003-04-23 | Prosthesis and method of making |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/847,361 Expired - Fee Related US6564086B2 (en) | 2000-05-03 | 2001-05-02 | Prosthesis and method of making |
Country Status (3)
Country | Link |
---|---|
US (2) | US6564086B2 (en) |
AU (1) | AU2001261160A1 (en) |
WO (1) | WO2001082829A2 (en) |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1574187A3 (en) * | 2004-03-03 | 2005-09-21 | Thämert Orthopädische Hilfsmittel GmbH & Co. KG | Breast prothesis |
US20060106465A1 (en) * | 2004-11-18 | 2006-05-18 | Yuichi Hikichi | Method and Apparatus for Restoring Alignment of the Support Socket in the Manufacture of Leg Prostheses |
EP1736730A1 (en) | 2005-06-21 | 2006-12-27 | Diehl BGT Defence GmbH & Co.KG | Distance measuring device and method for measuring distances |
US20070055371A1 (en) * | 2005-09-08 | 2007-03-08 | Laghi Aldo A | External breast prosthesis |
US20080314776A1 (en) * | 2007-06-22 | 2008-12-25 | Cooke Terry M | Personalized nipple for use with bottles/pacifiers and associated method |
US20090175516A1 (en) * | 2008-01-09 | 2009-07-09 | Precision Light, Inc. | Computer analysis of a breast shape to assist breast surgery |
US20090215359A1 (en) * | 2008-02-22 | 2009-08-27 | Jockey International, Inc. | System and method of constructing and sizing brassieres |
US20090287119A1 (en) * | 2008-05-16 | 2009-11-19 | Stewart Chapman | Breast volume measurement device and system |
US7717114B1 (en) | 2004-10-11 | 2010-05-18 | Alps South, LLC | Mask seal interface |
US20100204816A1 (en) * | 2007-07-27 | 2010-08-12 | Vorum Research Corporation | Method, apparatus, media and signals for producing a representation of a mold |
US20100280416A1 (en) * | 2009-04-30 | 2010-11-04 | Searete Llc, A Limited Liability Corporation Of The State Of Delaware | Shape sensing clothes to inform the wearer of a condition |
US20100275338A1 (en) * | 2009-04-30 | 2010-11-04 | Searete Llc, A Limited Liability Corporation Of The State Of Delaware | Shape changing material |
US20110115791A1 (en) * | 2008-07-18 | 2011-05-19 | Vorum Research Corporation | Method, apparatus, signals, and media for producing a computer representation of a three-dimensional surface of an appliance for a living body |
US20110134123A1 (en) * | 2007-10-24 | 2011-06-09 | Vorum Research Corporation | Method, apparatus, media, and signals for applying a shape transformation to a three dimensional representation |
US20140121770A1 (en) * | 2011-06-16 | 2014-05-01 | Ikeyama Medical Japan Co., Ltd. | Method for Adjusting Breast Regeneration Part |
US8795204B2 (en) | 2008-01-09 | 2014-08-05 | Allergan, Inc. | Anatomical recognition and dimensional analysis of breast volume to assist breast surgery |
US9024939B2 (en) | 2009-03-31 | 2015-05-05 | Vorum Research Corporation | Method and apparatus for applying a rotational transform to a portion of a three-dimensional representation of an appliance for a living body |
WO2017019401A1 (en) * | 2015-07-24 | 2017-02-02 | Dretzaka-Kaye Tricia | Anatomy scanning system and method |
WO2019017974A1 (en) * | 2017-07-21 | 2019-01-24 | Nike Innovate C.V. | Custom orthotics and personalized footwear |
US10925465B2 (en) | 2019-04-08 | 2021-02-23 | Activ Surgical, Inc. | Systems and methods for medical imaging |
US11179218B2 (en) | 2018-07-19 | 2021-11-23 | Activ Surgical, Inc. | Systems and methods for multi-modal sensing of depth in vision systems for automated surgical robots |
WO2022187907A1 (en) * | 2021-03-12 | 2022-09-15 | Arula Technologies Pty Ltd | A breast prosthesis and a method of forming a breast prosthesis |
US11763365B2 (en) | 2017-06-27 | 2023-09-19 | Nike, Inc. | System, platform and method for personalized shopping using an automated shopping assistant |
US11861673B2 (en) | 2017-01-06 | 2024-01-02 | Nike, Inc. | System, platform and method for personalized shopping using an automated shopping assistant |
US11977218B2 (en) | 2019-08-21 | 2024-05-07 | Activ Surgical, Inc. | Systems and methods for medical imaging |
Families Citing this family (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7058439B2 (en) * | 2002-05-03 | 2006-06-06 | Contourmed, Inc. | Methods of forming prostheses |
US6968246B2 (en) * | 2002-10-04 | 2005-11-22 | Fourroux Orthotics & Prosthetics, Inc. | Method for automated design of orthotic and prosthetic devices |
US7627362B2 (en) * | 2002-11-07 | 2009-12-01 | Wisys Technology Foundation | Method and apparatus for producing an electrical property image of substantially homogeneous objects containing inhomogeneities |
GB2395261A (en) * | 2002-11-11 | 2004-05-19 | Qinetiq Ltd | Ranging apparatus |
GB2395289A (en) * | 2002-11-11 | 2004-05-19 | Qinetiq Ltd | Structured light generator |
GB2395262A (en) * | 2002-11-11 | 2004-05-19 | Qinetiq Ltd | Optical proximity sensor with array of spot lights and a mask |
DE10305010B4 (en) * | 2003-02-07 | 2012-06-28 | Robert Bosch Gmbh | Apparatus and method for image formation |
FR2855959A1 (en) * | 2003-06-16 | 2004-12-17 | Tech Soft | Personalized equipment e.g. orthosis, manufacturing method, involves sweeping across surface of body part with bright light beam, and acquiring three dimensional representation of body part |
FR2857852B1 (en) * | 2003-07-24 | 2006-04-07 | Cie Euro Etude Rech Paroscopie | PLASTIC SURGERY IMPLANT WITH IMPROVED REGULARITY AND METHOD OF MANUFACTURING THE SAME |
JP2006068373A (en) * | 2004-09-03 | 2006-03-16 | Fuji Photo Film Co Ltd | Mammilla detector and program thereof |
US7447558B2 (en) * | 2004-09-18 | 2008-11-04 | The Ohio Willow Wood Company | Apparatus for determining a three dimensional shape of an object |
US20070010815A1 (en) * | 2005-06-30 | 2007-01-11 | Sdgi Holdings, Inc. | Fixation systems with modulated stiffness |
GB2431879A (en) * | 2005-11-02 | 2007-05-09 | Martin Lister | Replacement breasts |
WO2007062883A1 (en) * | 2005-11-29 | 2007-06-07 | Gf Messtechnik Gmbh | 3d coordinate measurement method and assembly, corresponding computer program, and corresponding computer-readable storage medium |
GB2434541B (en) | 2006-01-30 | 2009-06-17 | Mailling Wright Products Ltd | Method of preparing a medical restraint |
WO2007127339A2 (en) * | 2006-04-26 | 2007-11-08 | Tyco Healthcare Group Lp | Multi-stage microporation device |
NL1032584C1 (en) * | 2006-09-27 | 2008-03-28 | Paccus Interfaces B V | Angle rotation sensor. |
GB2449648B (en) * | 2007-05-29 | 2009-05-06 | Sony Comp Entertainment Europe | Apparatus and method of body characterisation |
US8245378B2 (en) * | 2007-09-13 | 2012-08-21 | Nike, Inc. | Method and apparatus for manufacturing components used for the manufacture of articles |
US7797072B2 (en) * | 2007-10-05 | 2010-09-14 | Bespoke Innovations, Inc. | Prosthetic limb with replaceable fairing |
US8417487B2 (en) | 2007-10-05 | 2013-04-09 | 3D Systems, Inc. | Replaceable fairing for prosthetic limb or brace |
GB0807185D0 (en) * | 2008-04-19 | 2008-05-21 | East Kent Hospital Nhs Trust | Fluid Delivery facilitator and method |
US8986234B2 (en) | 2008-11-09 | 2015-03-24 | 3D Systems, Inc | Custom braces, casts and devices having fenestrations and methods for designing and fabricating |
US11007070B2 (en) | 2008-11-09 | 2021-05-18 | 3D Systems, Inc. | Modular custom braces, casts and devices and methods for designing and fabricating |
US20110301520A1 (en) | 2008-11-09 | 2011-12-08 | Bespoke Innovations, Inc. | Adjustable brace |
US8613716B2 (en) | 2008-11-09 | 2013-12-24 | 3D Systems, Inc. | Custom braces, casts and devices having limited flexibility and methods for designing and fabricating |
US20100268135A1 (en) * | 2008-11-09 | 2010-10-21 | Scott Summit | Modular custom braces, casts and devices and methods for designing and fabricating |
FR2939020A1 (en) * | 2008-11-28 | 2010-06-04 | Joel Bescond | Osteopathic diagnosis assisting device for use by qualified person to perform treatment of e.g. vertebral blocked patient, has sensors connected with computer that records point by point values of pressure of vertebra |
GB0823228D0 (en) | 2008-12-19 | 2009-01-28 | Touch Emas Ltd | Prosthesis covering |
DE202009007115U1 (en) * | 2009-05-18 | 2010-06-02 | Amoena Medizin-Orthopädie-Technik GmbH | breast prosthesis |
US8557168B2 (en) * | 2009-10-29 | 2013-10-15 | Sean P. Halpin | External breast prosthesis and method of fabricating same |
GB0922603D0 (en) | 2009-12-24 | 2010-02-10 | Touch Emas Ltd | Skin colour determining apparatus and method |
US8908928B1 (en) | 2010-05-31 | 2014-12-09 | Andrew S. Hansen | Body modeling and garment fitting using an electronic device |
US20120130490A1 (en) * | 2010-09-24 | 2012-05-24 | Dominique Erni | Method for reconstruction and augmentation of the breast |
US8477903B2 (en) | 2011-03-31 | 2013-07-02 | Axellis Ventures Ltd | Validating a compensator for use in a radiation therapy machine to treat a cancer patient |
GB201114264D0 (en) | 2011-08-18 | 2011-10-05 | Touch Emas Ltd | Improvements in or relating to prosthetics and orthotics |
US9182210B2 (en) | 2012-08-29 | 2015-11-10 | Ossur Hf | Caliper for measurement of an object |
US20140063220A1 (en) | 2012-08-29 | 2014-03-06 | Ossur Hf | Method and Device for Ordering a Custom Orthopedic Device |
GB201302025D0 (en) | 2013-02-05 | 2013-03-20 | Touch Emas Ltd | Improvements in or relating to prosthetics |
WO2015120083A1 (en) | 2014-02-04 | 2015-08-13 | Rehabilitation Institute Of Chicago | Modular and lightweight myoelectric prosthesis components and related methods |
GB201403265D0 (en) | 2014-02-25 | 2014-04-09 | Touch Emas Ltd | Prosthetic digit for use with touchscreen devices |
WO2015138593A1 (en) | 2014-03-11 | 2015-09-17 | Ossur Hf | Method for ordering custom prosthetic and orthopedic devices |
GB201408253D0 (en) | 2014-05-09 | 2014-06-25 | Touch Emas Ltd | Systems and methods for controlling a prosthetic hand |
GB201417541D0 (en) | 2014-10-03 | 2014-11-19 | Touch Bionics Ltd | Wrist device for a prosthetic limb |
US10176275B1 (en) * | 2016-03-28 | 2019-01-08 | Luvlyu, Inc. | Breast shape visualization and modeling tool |
US11185426B2 (en) | 2016-09-02 | 2021-11-30 | Touch Bionics Limited | Systems and methods for prosthetic wrist rotation |
US10369024B2 (en) | 2016-09-02 | 2019-08-06 | Touch Bionics Limited | Systems and methods for prosthetic wrist rotation |
US11364675B2 (en) | 2016-11-01 | 2022-06-21 | Medtec Llc | Printing method for thermoplastic retention device preform |
US10973660B2 (en) | 2017-12-15 | 2021-04-13 | Touch Bionics Limited | Powered prosthetic thumb |
WO2019175901A1 (en) * | 2018-03-16 | 2019-09-19 | Prayasta 3D Inventions Pvt Ltd | System and method of manufacturing prostheses |
CN109124667B (en) * | 2018-07-23 | 2022-09-06 | 中国科学院苏州生物医学工程技术研究所 | Adjusting device for cage type CT scanner |
US11931270B2 (en) | 2019-11-15 | 2024-03-19 | Touch Bionics Limited | Prosthetic digit actuator |
Citations (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3293663A (en) * | 1963-08-12 | 1966-12-27 | Dow Corning | Surgically implantable human breast prosthesis |
US3494365A (en) * | 1967-02-02 | 1970-02-10 | Hidden Charm Inc | Breast pad |
US3681787A (en) * | 1971-03-26 | 1972-08-08 | Moxness Products Inc | Implantable breast prosthesis filled with gels of different densities |
US3957713A (en) * | 1973-04-13 | 1976-05-18 | General Electric Company | High strength organopolysiloxane compositions |
US4574780A (en) * | 1984-11-13 | 1986-03-11 | Manders Ernest K | Tissue expander and method |
US5133752A (en) * | 1990-02-22 | 1992-07-28 | Isabel Mandelkern | Launderable prosthetic device |
US5370688A (en) * | 1993-03-30 | 1994-12-06 | Spenco Medical Corporation | Encapsulated gel breast prosthesis and method of making |
US5376117A (en) * | 1991-10-25 | 1994-12-27 | Corvita Corporation | Breast prostheses |
US5411554A (en) * | 1993-07-20 | 1995-05-02 | Ethicon, Inc. | Liquid polymer filled envelopes for use as surgical implants |
US5447535A (en) * | 1988-04-27 | 1995-09-05 | Muller; Guy-Henri | Mammary prosthesis |
US5480430A (en) * | 1993-06-04 | 1996-01-02 | Mcghan Medical Corporation | Shape-retaining shell for a fluid filled prosthesis |
US5496367A (en) * | 1993-01-13 | 1996-03-05 | Fisher; Jack | Breast implant with baffles |
US5522896A (en) * | 1989-02-15 | 1996-06-04 | Xomed, Inc. | Biocompatible composite material |
US5902335A (en) * | 1997-10-01 | 1999-05-11 | Capital Marketing Technologies, Inc. | Multiple section breast prosthesis |
US6071309A (en) * | 1995-03-22 | 2000-06-06 | Knowlton; Edward W. | Segmental breast expander for use in breast reconstruction |
US6086801A (en) * | 1998-10-06 | 2000-07-11 | Board Of Trustees Of The University Of Arkansas | Method for forming a breast prosthesis |
US6136027A (en) * | 1997-10-22 | 2000-10-24 | Otto Bock U.S., Inc. | Custom prosthetic devices and methods of fabricating them using visible reverse imaging |
US6228116B1 (en) * | 1987-12-22 | 2001-05-08 | Walter J. Ledergerber | Tissue expander |
US6315796B1 (en) * | 1999-05-13 | 2001-11-13 | Board Of Trustees Of The University Of Arkansas | Flexible seamless memory tissue expanding implant |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5343391A (en) * | 1990-04-10 | 1994-08-30 | Mushabac David R | Device for obtaining three dimensional contour data and for operating on a patient and related method |
US5257184A (en) * | 1990-04-10 | 1993-10-26 | Mushabac David R | Method and apparatus with multiple data input stylii for collecting curvilinear contour data |
US5198877A (en) * | 1990-10-15 | 1993-03-30 | Pixsys, Inc. | Method and apparatus for three-dimensional non-contact shape sensing |
US5239178A (en) * | 1990-11-10 | 1993-08-24 | Carl Zeiss | Optical device with an illuminating grid and detector grid arranged confocally to an object |
US6405072B1 (en) * | 1991-01-28 | 2002-06-11 | Sherwood Services Ag | Apparatus and method for determining a location of an anatomical target with reference to a medical apparatus |
US5261404A (en) * | 1991-07-08 | 1993-11-16 | Mick Peter R | Three-dimensional mammal anatomy imaging system and method |
US5148600A (en) * | 1991-09-17 | 1992-09-22 | Advanced Robotics (A.R.L.) Ltd. | Precision measuring apparatus |
US5590261A (en) | 1993-05-07 | 1996-12-31 | Massachusetts Institute Of Technology | Finite-element method for image alignment and morphing |
US5813984A (en) * | 1997-03-07 | 1998-09-29 | University Radiologists, Inc. | Forensic skull and soft tissue database and on-line facial reconstruction of victims and age progession portrait rendering of missing children through utilization of advance diagnostic radiologic modalities |
US6081739A (en) * | 1998-05-21 | 2000-06-27 | Lemchen; Marc S. | Scanning device or methodology to produce an image incorporating correlated superficial, three dimensional surface and x-ray images and measurements of an object |
US6024449A (en) * | 1998-07-13 | 2000-02-15 | Smith; Robert F. | High speed topography measurement of semi-diffuse objects |
-
2001
- 2001-05-02 AU AU2001261160A patent/AU2001261160A1/en not_active Abandoned
- 2001-05-02 US US09/847,361 patent/US6564086B2/en not_active Expired - Fee Related
- 2001-05-02 WO PCT/US2001/014305 patent/WO2001082829A2/en active Application Filing
-
2003
- 2003-04-23 US US10/421,543 patent/US20030195623A1/en not_active Abandoned
Patent Citations (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3293663A (en) * | 1963-08-12 | 1966-12-27 | Dow Corning | Surgically implantable human breast prosthesis |
US3494365A (en) * | 1967-02-02 | 1970-02-10 | Hidden Charm Inc | Breast pad |
US3681787A (en) * | 1971-03-26 | 1972-08-08 | Moxness Products Inc | Implantable breast prosthesis filled with gels of different densities |
US3957713A (en) * | 1973-04-13 | 1976-05-18 | General Electric Company | High strength organopolysiloxane compositions |
US4574780A (en) * | 1984-11-13 | 1986-03-11 | Manders Ernest K | Tissue expander and method |
US6228116B1 (en) * | 1987-12-22 | 2001-05-08 | Walter J. Ledergerber | Tissue expander |
US5447535A (en) * | 1988-04-27 | 1995-09-05 | Muller; Guy-Henri | Mammary prosthesis |
US5522896A (en) * | 1989-02-15 | 1996-06-04 | Xomed, Inc. | Biocompatible composite material |
US5133752A (en) * | 1990-02-22 | 1992-07-28 | Isabel Mandelkern | Launderable prosthetic device |
US5376117A (en) * | 1991-10-25 | 1994-12-27 | Corvita Corporation | Breast prostheses |
US5496367A (en) * | 1993-01-13 | 1996-03-05 | Fisher; Jack | Breast implant with baffles |
US5370688A (en) * | 1993-03-30 | 1994-12-06 | Spenco Medical Corporation | Encapsulated gel breast prosthesis and method of making |
US5480430A (en) * | 1993-06-04 | 1996-01-02 | Mcghan Medical Corporation | Shape-retaining shell for a fluid filled prosthesis |
US5411554A (en) * | 1993-07-20 | 1995-05-02 | Ethicon, Inc. | Liquid polymer filled envelopes for use as surgical implants |
US6071309A (en) * | 1995-03-22 | 2000-06-06 | Knowlton; Edward W. | Segmental breast expander for use in breast reconstruction |
US5902335A (en) * | 1997-10-01 | 1999-05-11 | Capital Marketing Technologies, Inc. | Multiple section breast prosthesis |
US6136027A (en) * | 1997-10-22 | 2000-10-24 | Otto Bock U.S., Inc. | Custom prosthetic devices and methods of fabricating them using visible reverse imaging |
US6086801A (en) * | 1998-10-06 | 2000-07-11 | Board Of Trustees Of The University Of Arkansas | Method for forming a breast prosthesis |
US6315796B1 (en) * | 1999-05-13 | 2001-11-13 | Board Of Trustees Of The University Of Arkansas | Flexible seamless memory tissue expanding implant |
Cited By (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1574187A3 (en) * | 2004-03-03 | 2005-09-21 | Thämert Orthopädische Hilfsmittel GmbH & Co. KG | Breast prothesis |
US7717114B1 (en) | 2004-10-11 | 2010-05-18 | Alps South, LLC | Mask seal interface |
US20060106465A1 (en) * | 2004-11-18 | 2006-05-18 | Yuichi Hikichi | Method and Apparatus for Restoring Alignment of the Support Socket in the Manufacture of Leg Prostheses |
US7685701B2 (en) | 2004-11-18 | 2010-03-30 | Yuichi Hikichi | Method and apparatus for restoring alignment of the support socket in the manufacture of leg prostheses |
EP1736730A1 (en) | 2005-06-21 | 2006-12-27 | Diehl BGT Defence GmbH & Co.KG | Distance measuring device and method for measuring distances |
US20070055371A1 (en) * | 2005-09-08 | 2007-03-08 | Laghi Aldo A | External breast prosthesis |
WO2007030660A3 (en) * | 2005-09-08 | 2007-06-14 | Alps South Corp | External breast prosthesis |
WO2007030660A2 (en) * | 2005-09-08 | 2007-03-15 | Alps South Corporation | External breast prosthesis |
US7766963B2 (en) | 2005-09-08 | 2010-08-03 | Alps South, LLC | External breast prosthesis |
US20080314776A1 (en) * | 2007-06-22 | 2008-12-25 | Cooke Terry M | Personalized nipple for use with bottles/pacifiers and associated method |
US9737417B2 (en) | 2007-07-27 | 2017-08-22 | Vorum Research Corporation | Method, apparatus, media and signals for producing a representation of a mold |
US20100204816A1 (en) * | 2007-07-27 | 2010-08-12 | Vorum Research Corporation | Method, apparatus, media and signals for producing a representation of a mold |
US8576250B2 (en) | 2007-10-24 | 2013-11-05 | Vorum Research Corporation | Method, apparatus, media, and signals for applying a shape transformation to a three dimensional representation |
US20110134123A1 (en) * | 2007-10-24 | 2011-06-09 | Vorum Research Corporation | Method, apparatus, media, and signals for applying a shape transformation to a three dimensional representation |
US8294708B2 (en) | 2008-01-09 | 2012-10-23 | Allergan, Inc. | Anatomical recognition, orientation and display of an upper torso to assist breast surgery |
US20090175517A1 (en) * | 2008-01-09 | 2009-07-09 | Precision Light, Inc. | Anatomical recognition and dimensional analysis of breast measurements to assist breast surgery |
US20090175516A1 (en) * | 2008-01-09 | 2009-07-09 | Precision Light, Inc. | Computer analysis of a breast shape to assist breast surgery |
US9129055B2 (en) | 2008-01-09 | 2015-09-08 | Allergan, Inc. | Anatomical recognition, orientation and display of an upper torso to assist breast surgery |
US20090174707A1 (en) * | 2008-01-09 | 2009-07-09 | Precision Light, Inc. | Anatomical recognition, orientation and display of an upper torso to assist breast surgery |
CN102881049A (en) * | 2008-01-09 | 2013-01-16 | 阿勒根公司 | Anatomical recognition and dimensional analysis to assist breast surgery |
US8795204B2 (en) | 2008-01-09 | 2014-08-05 | Allergan, Inc. | Anatomical recognition and dimensional analysis of breast volume to assist breast surgery |
US8888717B2 (en) * | 2008-01-09 | 2014-11-18 | Allergan, Inc. | Anatomical recognition and dimensional analysis of breast measurements to assist breast surgery |
US8648853B2 (en) | 2008-01-09 | 2014-02-11 | Allergan, Inc. | Anatomical recognition, orientation and display of an upper torso to assist breast surgery |
US8834391B2 (en) * | 2008-01-09 | 2014-09-16 | Allergan, Inc. | Computer analysis of a breast shape to assist breast surgery |
US8123589B2 (en) | 2008-02-22 | 2012-02-28 | Jockey International, Inc. | System and method of constructing and sizing brassieres |
US20090215359A1 (en) * | 2008-02-22 | 2009-08-27 | Jockey International, Inc. | System and method of constructing and sizing brassieres |
US20090287119A1 (en) * | 2008-05-16 | 2009-11-19 | Stewart Chapman | Breast volume measurement device and system |
US20110115791A1 (en) * | 2008-07-18 | 2011-05-19 | Vorum Research Corporation | Method, apparatus, signals, and media for producing a computer representation of a three-dimensional surface of an appliance for a living body |
US9024939B2 (en) | 2009-03-31 | 2015-05-05 | Vorum Research Corporation | Method and apparatus for applying a rotational transform to a portion of a three-dimensional representation of an appliance for a living body |
US8784342B2 (en) | 2009-04-30 | 2014-07-22 | The Invention Science Fund I Llc | Shape sensing clothes to inform the wearer of a condition |
US20100280416A1 (en) * | 2009-04-30 | 2010-11-04 | Searete Llc, A Limited Liability Corporation Of The State Of Delaware | Shape sensing clothes to inform the wearer of a condition |
US8495762B2 (en) * | 2009-04-30 | 2013-07-30 | The Invention Science Fund I Llc | Shape changing material |
US20120324616A1 (en) * | 2009-04-30 | 2012-12-27 | Searete Llc, A Limited Liability Corporation Of The State Of Delaware | Shape changing material |
US8272069B2 (en) * | 2009-04-30 | 2012-09-25 | The Invention Science Fund I, Llc | Shape changing material |
US20110270435A1 (en) * | 2009-04-30 | 2011-11-03 | Searete Llc, A Limited Liability Corporation Of The State Of Delaware | Shape changing material |
US7992217B2 (en) * | 2009-04-30 | 2011-08-09 | The Invention Science Fund I, Llc | Shape changing material |
US20100275338A1 (en) * | 2009-04-30 | 2010-11-04 | Searete Llc, A Limited Liability Corporation Of The State Of Delaware | Shape changing material |
US20140121770A1 (en) * | 2011-06-16 | 2014-05-01 | Ikeyama Medical Japan Co., Ltd. | Method for Adjusting Breast Regeneration Part |
WO2017019401A1 (en) * | 2015-07-24 | 2017-02-02 | Dretzaka-Kaye Tricia | Anatomy scanning system and method |
US11861673B2 (en) | 2017-01-06 | 2024-01-02 | Nike, Inc. | System, platform and method for personalized shopping using an automated shopping assistant |
US11763365B2 (en) | 2017-06-27 | 2023-09-19 | Nike, Inc. | System, platform and method for personalized shopping using an automated shopping assistant |
WO2019017974A1 (en) * | 2017-07-21 | 2019-01-24 | Nike Innovate C.V. | Custom orthotics and personalized footwear |
US11179218B2 (en) | 2018-07-19 | 2021-11-23 | Activ Surgical, Inc. | Systems and methods for multi-modal sensing of depth in vision systems for automated surgical robots |
US11857153B2 (en) | 2018-07-19 | 2024-01-02 | Activ Surgical, Inc. | Systems and methods for multi-modal sensing of depth in vision systems for automated surgical robots |
US10925465B2 (en) | 2019-04-08 | 2021-02-23 | Activ Surgical, Inc. | Systems and methods for medical imaging |
US11389051B2 (en) | 2019-04-08 | 2022-07-19 | Activ Surgical, Inc. | Systems and methods for medical imaging |
US11754828B2 (en) | 2019-04-08 | 2023-09-12 | Activ Surgical, Inc. | Systems and methods for medical imaging |
US11977218B2 (en) | 2019-08-21 | 2024-05-07 | Activ Surgical, Inc. | Systems and methods for medical imaging |
WO2022187907A1 (en) * | 2021-03-12 | 2022-09-15 | Arula Technologies Pty Ltd | A breast prosthesis and a method of forming a breast prosthesis |
Also Published As
Publication number | Publication date |
---|---|
US6564086B2 (en) | 2003-05-13 |
US20020016631A1 (en) | 2002-02-07 |
WO2001082829A3 (en) | 2002-10-10 |
WO2001082829A2 (en) | 2001-11-08 |
AU2001261160A1 (en) | 2001-11-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6564086B2 (en) | Prosthesis and method of making | |
KR101726013B1 (en) | Replaceable fairing for prosthetic limb or brace | |
US20210022891A1 (en) | Variable Impedance Mechanical Interface | |
Cheah et al. | Integration of laser surface digitizing with CAD/CAM techniques for developing facial prostheses. Part 1: Design and fabrication of prosthesis replicas. | |
Runte et al. | Optical data acquisition for computer-assisted design of facial prostheses. | |
Feng et al. | Computer-assisted technique for the design and manufacture of realistic facial prostheses | |
Bhatia et al. | Quantification of facial surface change using a structured light scanner | |
Germec-Cakan et al. | Comparison of facial soft tissue measurements on three-dimensional images and models obtained with different methods | |
US10736757B2 (en) | Fitting system | |
Lincoln et al. | Comparative accuracy of facial models fabricated using traditional and 3D imaging techniques | |
Tsuchida et al. | Comparison of the accuracy of different handheld-type scanners in three-dimensional facial image recognition | |
Liu et al. | Wound measurement by curvature maps: a feasibility study | |
RU2663387C1 (en) | Contact device for measuring configuration and size of dimensional body, measurement system of configuration and size of dimensional body, method of measuring configuration and size of dimensional body | |
CN114401699A (en) | Method for producing a prosthesis shaft | |
CN111639553A (en) | Preparation method of customized mask device based on visual three-dimensional reconstruction | |
Galantucci et al. | 3D Face measurement and scanning using digital close range photogrammetry: evaluation of different solutions and experimental approaches | |
JP3667727B2 (en) | Object position measuring method and apparatus | |
Ciobanu | Bioengineering applications of 3D scanning and reconstruction using a depth sensor | |
Karbacher et al. | FaceSCAN3D–photorealistic 3D images for medical applications | |
Chen et al. | Dental implant positioning leveraging self-identifying projective invariant markers | |
Ambu et al. | Neck orthosis design for 3D printing with user enhanced comfort | |
Nguyen et al. | A Novel Breast Insert Design Approach of Mastectomy Bra for Breast Cancer Patients Applying 3D Scanning Technology | |
Radu | Automatic reconstruction of 3D CAD models from tomographic slices via Rapid Prototyping technology | |
Rao | Biometrics in wearable products: Reverse Engineering and numerical modeling | |
PT108184B (en) | METHOD FOR DETERMINING THE POSITION AND THREE-DIMENSIONAL ORIENTATION OF IMPLANTS IN MEDICAL IMAGES |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |