EP1713386A1 - Optische erfassung der raumform von körpern und körperteilen mit optisch teilweise nicht einsehbaren partien - Google Patents
Optische erfassung der raumform von körpern und körperteilen mit optisch teilweise nicht einsehbaren partienInfo
- Publication number
- EP1713386A1 EP1713386A1 EP05707172A EP05707172A EP1713386A1 EP 1713386 A1 EP1713386 A1 EP 1713386A1 EP 05707172 A EP05707172 A EP 05707172A EP 05707172 A EP05707172 A EP 05707172A EP 1713386 A1 EP1713386 A1 EP 1713386A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- visible
- parts
- measuring aid
- measuring
- spatial
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- 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
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
- A61B5/1126—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb using a particular sensing technique
- A61B5/1127—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb using a particular sensing technique using markers
Definitions
- the invention relates to a method for the optical detection of the spatial shape of bodies and body parts with partially invisible parts, and to an arrangement for guiding the nerve procedure.
- this method also has the limitation that only those parts of a body can be digitized that are captured by the cameras.
- all parts of the body to be digitized must even be captured from at least two views in order to be able to calculate the 3D model from the 2D images.
- the non-visible parts of the body are missing in the 3D model.
- These missing parts are a major limitation, for example, in the manufacture of thigh prostheses.
- the shaft to be adjusted encompasses the entire thigh and, particularly in the area of the ramus (pelvic bone in the perineal area), must have firm physical contact that is precisely aligned with the ramus bone in the angular position. This area is visually not visible.
- Spatial shape of bodies and body parts with at least one 3D digitizer and those that cannot be viewed by the at least one 3D digitizer avoidable parts of the body are attached in a form-fitting manner to at least one dimensionally stable measuring aid so that it protrudes into the measuring space that can be viewed by the at least one optical 3D digitizer, this at least one measuring aid at least at some points of its parts located in the visible measuring space with the at least one 3D digitizer that can be evaluated Markings is provided, and these markings are in a known spatial position with respect to the other parts of the measuring aid. The spatial position and the markings of this part of the measuring aid, which is visible to the at least one 3D digitizer, are combined with the? Form of the other, visible parts of the body determined.
- geometric information such as height, angle, circumference, curvature, etc. of the body part or parts that cannot be seen are determined and this information is used to supplement the description of the incompletely digitized spatial form on these parts due to the non-visible parts Digits used.
- the invention also relates to an arrangement for carrying out the method.
- This arrangement comprises a body or a body part with partially invisible parts and a dimensionally rigid measuring aid with marks that can be evaluated photogrammetrically, which is attached in a form-fitting manner to at least one of the non-visible parts of the body / body part (10).
- An optical 3D digitizer detects the spatial shape of the visible parts of the body and at least a visible part of the measuring aid and transfers spatial coordinates to a computer, which are determined by the 3D digitizer from the visible parts of the body or body part and from the visible part of the measuring aid.
- the computer determines geometric information about the height, angle, circumference, Curvature of the parts of the body that are not visible and uses this geometric information to complement the spatial form that is incompletely digitized because of the parts that are not visible.
- Advantageous embodiments of the method are contained in the subclaims.
- This inventive concept is described by way of example, but not by way of limitation, using two applications in the field of orthopedics: a) the determination of spatial information from the (non-visible) area of the ramus (near the perineum) during 3D scanning of a thigh for the manufacture of a suitable stem for a thigh prosthesis b) the determination of the circumference of the (not fully visible) thigh in obese patients for the manufacture of adapted compression stockings and compression tights
- Fig. 1 shows a front view of the optically invisible part of the ramus in a patient who needs a thigh prosthesis
- FIG. 3 shows a measuring aid in the form of an adjustable ring which is provided with marks which can be evaluated photogrammetrically on the visible surface and which also has a marked belt for determining the circumference at the non-visible places on the thigh;
- Fig. 4 shows a patient for compression stocking care, in which the thigh area is not visible, and in which the circumferential dimension in the invisible thigh area is determined with a 3D scanner using a marked belt.
- the patient who needs a thigh prosthesis is traditionally cared for by manually taking a plaster cast from the thigh. in this connection The orthopedist expertly presses the still soft plaster in the area of the ramus into the appropriate position, according to the individual local anatomy of the male or female patient.
- FIG. 1 shows a patient only shown in part and a schematically indicated 3D digitizer 2 with a connected computer 3.
- the limb 10 of the patient standing upright on a photogrammetrically marked base plate 13 is covered with an elastic covering 12 provided with marks that can be evaluated photogrammetrically.
- the brands are only given as examples; they can consist of differently coded patterns which are known to the person skilled in the art of photogrammetry.
- DE 101 13 211.5 by the inventor Robert Massen describes various photogrammetric marking systems which are particularly suitable for automatic evaluation and which are suitable both for marking the base plate and for marking the elastic coating.
- the patient stands on the plate 13 provided with photogrammetric marks, which defines the world coordinate system and at the same time represents an absolute scale, which is required for obtaining absolute XYZ coordinates.
- the usual way for this technology to take the marked stump with a series of images taken all around with a digital camera the area between the two thighs is not visible. No 3D data can therefore be obtained from this part of the body.
- the height coordinate 14 of the ramus bone in the area of the perineum and the ramus angle alpha 15 below which the prosthesis socket lies and which absorbs a significant part of the body weight when the prosthesis is worn later are missing.
- an elongated measuring elbow 16 which bends upwards is attached to the inside of the thigh stump 10 and at the level of the perineum in physical contact with the ramus in such a way that it moves in the direction of the ramus angle from the invisible area into the visible outside space that sticks out.
- the kink ensures that the visible, marked end 17 of the measuring position is in a spatial position which does not cover any parts of the body to be digitized, in the present example the lower abdomen.
- the attachment can be done, for example, with a Velcro fastener on the elastic cover.
- the freely visible end of the measuring bilge is recorded simultaneously with the visible parts of the body during the digitizing process and the exact spatial position of the markings of both the measuring aid and the visible parts of the body is determined. Since the help is rigid, the XYZ coordinates of these markings allow conclusions to be drawn about the spatial information required, such as the height and angular position of the ramus bone. This means that there is no complete XYZ data for the non-visible part of the body, but spatial partial information such as height, angular directions, etc., which supplement the missing points in the 3D model determined by the 3D digitizer for the appropriate manufacture of the shaft.
- a photogrammetrically marked, circumferentially adjustable auxiliary ring 18 is brought into the position of the final shaft connection as a measurement guide via the marked coating 12 and aligned there at the ramus angle.
- the auxiliary ring is adapted to the thigh width by adjusting the diameter with the aid of a belt construction 19 which is also marked.
- the markings on the surface serve to determine the spatial coordinates and thus the spatial position of the auxiliary ring with respect to the world coordinate system and thus indirectly also with respect to the marked thigh stump.
- Model of the auxiliary ring 18 can easily be converted to the individual diameter of the patient. Since the spatial position of the auxiliary ring 18 relative to the digitized stump 10 is known at the same time, all 3D information is available in order to automatically produce an individual prosthetic socket starting from the end of the stump and extending to the ramus.
- Another idea of the invention is to produce the marked auxiliary ring from semiplastic, photogrammetrically marked material.
- This material is molded onto the thigh by the orthopedic surgeon like a soft plaster and, after being deformed by hand, retains its spatial shape for at least a short time for the duration of the digitization.
- the 3D digitizer determines, at least for the visible part of the thigh, the spatial shape which a final shaft compressing the fatty tissue must occupy.
- the non-visible part is determined, for example, as described above, by a measuring aid protruding into the visible measuring space, which expediently on Auxiliary ring is attached and, for example, protrudes into the visible measuring space at the Ramus angle.
- Another idea of the invention is to use the measuring means under load, i.e. burdened by the invisible parts of the body.
- a vertical load e.g. in that the measuring means is supported with the aid of a support in relation to the base plate on which the patient stands during the 3D digitization.
- the load is caught by the belt attached for adjusting the diameter.
- the desired spatial coordinates under body load i.e. Similar to the later wearing of the prosthesis, with which 3D digitizers can be determined and thus provide a much more precise description of the spatial shape required for the production of the adapted prosthesis part than when digitizing an unloaded stump.
- the precise fit i.e. burdened by the invisible parts of the body.
- the markings on the aid can consist of absolutely or relatively coded marks, color-coded marks, marks marked by certain background colors or marks coded by a certain mutual arrangement.
- 3D digitizers that project onto patterns
- the application of photogrammetrically coded marks on the aid can be omitted and special molded parts of the aid such as e.g. its edge can be used as a space marker.
- the aid must have sufficient optical reflection so that these projected marks can be evaluated by the optical 3D digitizer.
- the end protruding freely into the measuring space represents, for example, a spatial position which can be detected by the 3D digitizer and which is in a known spatial position with respect to the part of the measuring aid fixed to the body part and therefore forms a "mark" in the sense of the inventive idea be counted back to the unmeasurable position of the invisible part of the body in the measuring room.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Physiology (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004007455A DE102004007455A1 (de) | 2004-02-13 | 2004-02-13 | Optische Erfassung der Raumform von Körpern und Körperteilen mit teilweise nicht einsehbaren Partien |
PCT/EP2005/001089 WO2005077271A1 (de) | 2004-02-13 | 2005-02-03 | Optische erfassung der raumform von körpern und körperteilen mit optisch teilweise nicht einsehbaren partien |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1713386A1 true EP1713386A1 (de) | 2006-10-25 |
Family
ID=34813398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05707172A Withdrawn EP1713386A1 (de) | 2004-02-13 | 2005-02-03 | Optische erfassung der raumform von körpern und körperteilen mit optisch teilweise nicht einsehbaren partien |
Country Status (4)
Country | Link |
---|---|
US (1) | US7852493B2 (de) |
EP (1) | EP1713386A1 (de) |
DE (1) | DE102004007455A1 (de) |
WO (1) | WO2005077271A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8417487B2 (en) * | 2007-10-05 | 2013-04-09 | 3D Systems, Inc. | Replaceable fairing for prosthetic limb or brace |
US8363927B2 (en) | 2007-11-19 | 2013-01-29 | Corpus.E Ag | High-resolution optical detection of the three-dimensional shape of bodies |
US8986234B2 (en) * | 2008-11-09 | 2015-03-24 | 3D Systems, Inc | Custom braces, casts and devices having fenestrations and methods for designing and fabricating |
US20110001794A1 (en) * | 2009-03-03 | 2011-01-06 | Bhanti Amit V | System and method for shape capturing as used in prosthetics, orthotics and pedorthics |
US8588476B1 (en) * | 2012-06-04 | 2013-11-19 | Clicrweight, LLC | Systems for determining animal metrics and related devices and methods |
GB201302194D0 (en) * | 2013-02-07 | 2013-03-27 | Crisalix Sa | 3D platform for aesthetic simulation |
US20140257762A1 (en) | 2013-03-08 | 2014-09-11 | Gottinger Handelshaus Ohg | Method and device for transferring statics |
WO2015145220A1 (en) * | 2014-03-26 | 2015-10-01 | Robosense Srl | Device and method for the discrete reconstruction of the three-dimensional shape and position of an object |
EP2962636B1 (de) * | 2014-07-03 | 2016-08-17 | Arno Kefenbaum | Vorrichtung zur Durchleuchtung eines menschlichen oder tierischen Körpers |
JP6897048B2 (ja) * | 2016-10-04 | 2021-06-30 | 凸版印刷株式会社 | 補装具装着部形状取得方法及び補装具装着部形状取得システム |
DE102018104386A1 (de) | 2017-11-07 | 2019-05-09 | Gottinger Handelshaus Ohg | Verfahren zum Erstellen eines Modells eines Hilfsmittels von einem bestehenden Hilfsmittel oder Negativabdruck, Vorrichtungen zur Digitalisierung eines Hilfsmittels, und Einheit zur Durchführung des Verfahrens |
US20210186360A1 (en) * | 2019-12-23 | 2021-06-24 | Wyze Labs, Inc. | Smart scale systems with body imaging and associated devices and methods |
PL442485A1 (pl) * | 2022-10-10 | 2024-04-15 | Wimba Poland Spółka Z Ograniczoną Odpowiedzialnością | Znacznik do rozpoznawania kształtów oraz zastosowanie tego znacznika |
GB2624657A (en) * | 2022-11-24 | 2024-05-29 | Smith & Nephew | Method of limb scanning |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3807578A1 (de) * | 1988-03-08 | 1989-09-28 | Neumeyer Stefan | Verfahren zur raeumlichen erfassung und/oder bestimmung eines koerpers, insbesondere eines menschlichen schaedels |
FR2639211A1 (fr) | 1988-11-18 | 1990-05-25 | Hennson Int | Procede de correlation des saisies tridimensionnelles d'organes humains et dispositif pour sa mise en oeuvre |
SE465498B (sv) * | 1989-08-17 | 1991-09-23 | Anders Sundh | Metod foer framstaellning av restaurationer, proteser eller liknande inom tand- och sjukvaarden |
US4974331A (en) | 1989-10-17 | 1990-12-04 | Watterson Steven J | Extensible girth measuring device |
FR2679327B1 (fr) * | 1991-07-15 | 1996-12-27 | Cebelor | Procede de mesure tridimensionnelle, sans contact, de l'enveloppe d'un objet, notamment un pied, et appareil de mesure permettant la mise en óoeuvre du procede. |
DE4229466C2 (de) * | 1992-09-03 | 2001-04-26 | Kaltenbach & Voigt | Zahnvermessung ohne Kalibrationskörper |
GB9304058D0 (en) * | 1993-03-01 | 1993-04-14 | Orthotics Limited | Improvements relating to foot orthoses |
DE4417872A1 (de) * | 1994-05-22 | 1995-11-23 | Robert Prof Dr Ing Massen | Optische Digitalisierung von Körperteilen |
DE19916978C1 (de) * | 1999-04-15 | 2001-04-26 | Bock Orthopaed Ind | Verfahren zum Vermessen eines Körperbereichs |
US6377353B1 (en) * | 2000-03-07 | 2002-04-23 | Pheno Imaging, Inc. | Three-dimensional measuring system for animals using structured light |
DE10025922A1 (de) * | 2000-05-27 | 2001-12-13 | Robert Massen | Automatische photogrammetrische Digitalisierung von Körpern und Objekten |
DE10033828A1 (de) * | 2000-07-19 | 2002-01-31 | Robert Massen | Optische Erfasung der Raumform von Körpern und Körperteilen |
US6993179B1 (en) * | 2000-08-07 | 2006-01-31 | Koninklijke Philips Electronics N.V. | Strapdown system for three-dimensional reconstruction |
DE10049926A1 (de) * | 2000-10-07 | 2002-04-11 | Robert Massen | Kamera zur kostengünstigen Erfassung der Raumform von Körpern |
DE10216475B4 (de) * | 2002-04-12 | 2015-03-26 | Corpus.E Ag | Optische Erfassung der Raumform von Innenräumen |
FR2852421B1 (fr) * | 2003-04-22 | 2005-06-17 | Dispositif d'aide a la selection d'une orthese de contention et a son adaptation a la morphologie d'un membre |
-
2004
- 2004-02-13 DE DE102004007455A patent/DE102004007455A1/de not_active Withdrawn
-
2005
- 2005-02-03 EP EP05707172A patent/EP1713386A1/de not_active Withdrawn
- 2005-02-03 WO PCT/EP2005/001089 patent/WO2005077271A1/de active Application Filing
- 2005-02-03 US US10/589,271 patent/US7852493B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
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See references of WO2005077271A1 * |
Also Published As
Publication number | Publication date |
---|---|
US7852493B2 (en) | 2010-12-14 |
DE102004007455A1 (de) | 2005-09-01 |
US20070288198A1 (en) | 2007-12-13 |
WO2005077271A1 (de) | 2005-08-25 |
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