US3398455A - Apparatus for copying body contour - Google Patents

Apparatus for copying body contour Download PDF

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Publication number
US3398455A
US3398455A US468329A US46832965A US3398455A US 3398455 A US3398455 A US 3398455A US 468329 A US468329 A US 468329A US 46832965 A US46832965 A US 46832965A US 3398455 A US3398455 A US 3398455A
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United States
Prior art keywords
copying
frame
copying base
patient
base
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Expired - Lifetime
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US468329A
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English (en)
Inventor
Setala Kai Martin Edvard
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Individual
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Individual
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Publication of US3398455A publication Critical patent/US3398455A/en
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Assigned to FOOTHILL CAPITAL CORPORATION reassignment FOOTHILL CAPITAL CORPORATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AM INTERNATIONAL, INC.
Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/04—Positioning of patients; Tiltable beds or the like
    • A61B6/0407—Supports, e.g. tables or beds, for the body or parts of the body
    • A61B6/0442—Supports, e.g. tables or beds, for the body or parts of the body made of non-metallic materials
    • 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
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/04—Positioning of patients; Tiltable beds or the like

Definitions

  • a rotatable frame is provided to rotate about an axis of a horizontal examination table; at the outer end of the frame, a traverse rotatable copying base is mounted in such a manner to maintain a constant angular attitude to the horizontal plane of the table in all positions of the rotatable frame; a sensing rod which is slidably supported on the frame and extends from the copying base toward the table, follows the contour of the patients body lying on the table; and a recording instrument attached to the sensing rod records the contour on the copying base.
  • This invention relates to an apparatus for copying the cross sectional contour of a patients body, and in particular to an apparatus for reproducing the contour of a platient lying horizontally on an examination table or the In many forms of treatment, it is of great/value, if not of necessity, for the doctor or surgeon to have an exact knowledge of the body contour of the patient at a given area of the patients body. For instance, in the treatment of malignant tumors by radiation, a knowledge of the body contour permits the treating radiologist to direct the radiation towards precisely the desired location without irradiating the surrounding healthy tissues, whereby most effective use is made of the radiation while the surrounding sensitive tissues are not injured by the radiation.
  • the most prevalent means of determining the patients body contour is by an indirect method such as the forming of a girdle-like structure around the patient in which the structure is then opened and a cross section thereof is manually copied onto a piece of paper.
  • This procedure suffers from many disadvantages in that it is time consuming, cumbersome, inexact, and the contour found thereby is not accurately reproduceable.
  • the patient, in this procedure is generally in a sitting position whereas during the radiation treatment the patient is generally in a horizontal position.
  • the body contour of the patient in the lying position is significantly different from the contour in the sitting postion so that errors occur when the contour is taken in the sitting position and the treatment is to be made in the lying position, as is the common practice.
  • a frame is rotatably mounted about the examination table and in a plane transverse, preferably to the longitudinal axis thereof.
  • a copying base parallel with the rotation plane of the frame; the rotational position of the copying base with reference to the table being fixed.
  • a sensing rod is mounted on the frame and extends from the copying base to the patient and is movable in its longitudinal direction.
  • a recording instrument is provided at the other end of the rod, and directed toward the copying base.
  • the frame is supported on a nonrotatable ring surrounding the table.
  • the copying base be circular in form and that it have a diameter equal to that of the nonrotatable ring.
  • the copying base and the ring are so coupled together that the rotational position of the copying base is maintained unchanged in all positions of the frame, the movable sensing rod being situated on a line parallel to the line connecting the centers of the copying base and the ring.
  • the copying base and the non-rotating ring can be coupled together by means of a wire, a string, a chain, or other similar transmission elements which pass around the peripheries thereof.
  • This transmission element may be passed around a pulley, supported on the frame, to permit the changing of the rotational position of the frame by the turning of the pulley.
  • the copying base and the nonrotating ring may alternatively be coupled together by means of a friction wheel, a tooth wheel or the like, in contact with the peripheries thereof.
  • the sensing rod which extends from the copying base to the patient is given a reciprocating motion by means of a motor, and the end of the sensing rod, which is directed toward the patient, is provided with a switching element which when in contact with the patients skin causes the movement in the sensing rod to stop and reverse, and also triggers the recording instrument to make a mark on the copying base.
  • the frame may be rotated by means of a motor, but it has been found preferable to rotate the frame manually whereby the rotation velocity of the frame can be chosen as desired so that a greater number of marks may be made on the copying base at the more curved regions of the body contour.
  • the frame is arranged to be movable longitudinally to the table.
  • the longitudinal axis of the table is marked and the table itself is made of a transparent material so that it is possible to bring the center line of the patient in coincidence with the longitudinal axis of the table as viewed from below.
  • the work of the attendants is also facilitated by the placing of a mirror beneath the table which is so positioned that the longitudinal axis of the table and the patients center line can be observed in this mirror.
  • a corresponding cross or scale can be marked on the patients skin, in coincidence with the cross hair which is projected from beneath the table, to permit the placing of the patient in the same position on the table over a repeated series of treatments.
  • FIG. 1 is a perspective view of the apparatus according to this invention.
  • FIG. 2 shows this invention as viewed from the end of the examination table
  • FIG. 3 shows the table with the longitudinal axis marked thereon
  • ⁇ 116. 4 is' the-apparatus FIG. having ---a splitted are attached support shanks 9 situated ,in the plane of the ring.
  • a circular copying base 10 having a diameter equal to that of the lnonr'otatable ring 7, is rotatably mounted-
  • the copying base and the nonrotatable ring are connected to each other by means of a wire 1 1, in such a manner that the angular attitude of the copying base in relation to the horizontal plane of the table is maintained unchanged in all positions of the frame 8 and 9.
  • the coupling between the copying base and the nonrotatable ring may also be achieved by the use of a friction Wheel, tooth wheel, or similar coupling means mounted between and in contact with the outer peripheries of the nonrotatable ring and the copying base.
  • the rotational position of the copying base can be kept constant by positioning the center of gravity of the copying base at the lower edge thereof.
  • a pulley 12 is mounted on the support shanks 9 and the wire 11 is passed around the pulley so that the/frame can be rotated by the turning of said pulley.
  • 'Slide rails 13 are attached to the support shanks 9 and extend on the front side of the copying base 10.
  • a sensing rod 14 is mounted, situated parallel to the plane of the copying base and extending from the copying base to the patient lying 'on the table.
  • Rod 14 is arranged to be movable in a longitudinal reciprocating movement by means of an electrically operated driving element 15.
  • Sensing rod 14 is directed toward the center of rotation of the frame which is, in this case, toward the longitudinal axis of the table plate 6.
  • the end of the rod 14, which faces the table, is provided with a sensitive microswitch 16 which, upon contacting the patients skin, causes the movement of the rod to instantaneously stop and reverse.
  • a recorder (not shown) which is also actuated by the switch 16.
  • the recorder is triggered by the switch 16 to make a mark on a sheet of paper attached to the copying base 10.
  • a scaled longitudinal axis 17 is marked on the examination table plate 6.
  • a projector 18 is connected to a nonrotatable ring 7 to reflect a beam of light with a cross hair via mirror 19 through the table plate 6 and onto the skin of the patient.
  • a mirror 20 in which the surface of the downward facing portion of the patients body can be readily observed.
  • pulley 12 When the apparatus is used, pulley 12 is turned to rotate the framearound the ring 7.
  • the rod 14 reciprocates constantly and the recorder produces points on the paper sheets 21.
  • the contour of the upper portion of the patients body is marked on the paper by means of these closely located points. The entire operation requires about approximately 30 seconds.
  • a counter weight 22 is attached to the lower portion of the rotatable ring 8. As shown the apparatus does not produce a contour of the lower portion of the patients body. This may not be necessary as the lower portion of the patients body is in part plane as it is pressed against the plane table plate 6.
  • An apparatus for copying body contour of a patient lying on an examination table comprising: a frame I mounted on said table for rotation about an axis fixed with respect to said table; a copying base mounted on said frame for movement therewith and for rotation relative thereto about an axis parallel to said fixed axis; a sensing rod supported on said frame for longitudinal movement generally toward and away from said fixed axis and extending from the copying base to a point near said fixed axis; a recording instrument connected to said rod and adapted to inscribe a line on said copying base upon relative movement between said instrument and said copying base; and a copying base control means for controlling said rotation of said copying base relative to said frame so that the angular attitude of said copying base is maintained in fixed relation to said table during rotation of said frame.
  • An apparatus as recited in claim 1 further compris: ing a nonrotatable ring surrounding said table and supporting said frame.
  • An apparatus as recited in claim 3 further comprising a transmission element coupling said copying baseand said nonrotatable ring, said transmission element passing around the outer peripheries of said nonrotatable ring and said copying base.
  • An apparatus as recited in claim 4 further comprising a pulley supported on said frame around which said transmission element is passed whereby the turning of said pulley changes the rotational position of said frame.
  • Apparatus as recited in claim 3 further comprising a driving wheel mounted between and in contact with the peripheries of said nonrotatable ring and said copying base, for coupling said nonrotatable ring and said copying base together.
  • Apparatus as recited in claim 1 further comprising means for producing reciprocating motion in said sensing rod and a sensitive switch provided at the end of said sensing-rod which is directed towards the patient, said sensitive switch being connected to said reciprocatingmo tion producing means to stop and reverse movement of said rodxwhensaid switch is activated, said switchbeing also connected to a recording instrument to make a mark on said copying base when said switch is activated, said 5 6 switch being activated when the sensing rod contacts the prising a projector placed beneath said transparent table patients skin. for reflecting a beam of light and a cross hair through 9.
  • Apparatus as recited in claim 1 wherein said frame said table onto the patients skin. is arranged to be movable longitudinally of said table. 13.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Surgery (AREA)
  • Public Health (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
US468329A 1964-07-06 1965-06-30 Apparatus for copying body contour Expired - Lifetime US3398455A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI144364 1964-07-06

Publications (1)

Publication Number Publication Date
US3398455A true US3398455A (en) 1968-08-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
US468329A Expired - Lifetime US3398455A (en) 1964-07-06 1965-06-30 Apparatus for copying body contour

Country Status (7)

Country Link
US (1) US3398455A (de)
CH (1) CH440541A (de)
DE (1) DE1466915C3 (de)
FR (1) FR1472044A (de)
GB (1) GB1083668A (de)
NL (1) NL6508399A (de)
SE (1) SE306594B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2357226A1 (fr) * 1976-07-09 1978-02-03 Signaux Entr Electriques Conformateur, destine en particulier au releve precis d'un contour du corps humain, et son application en radiotherapie transcutanee

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2721989A (en) * 1949-11-29 1955-10-25 United Shoe Machinery Corp Recording magnitudes in ratio form
US2789354A (en) * 1949-01-21 1957-04-23 Optical Gaging Prod Inc Profile contour machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2789354A (en) * 1949-01-21 1957-04-23 Optical Gaging Prod Inc Profile contour machine
US2721989A (en) * 1949-11-29 1955-10-25 United Shoe Machinery Corp Recording magnitudes in ratio form

Also Published As

Publication number Publication date
FR1472044A (fr) 1967-03-10
NL6508399A (de) 1966-01-07
CH440541A (de) 1967-07-31
DE1466915B2 (de) 1973-04-26
DE1466915C3 (de) 1973-11-08
DE1466915A1 (de) 1969-05-29
GB1083668A (en) 1967-09-20
SE306594B (de) 1968-12-02

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AS Assignment

Owner name: FOOTHILL CAPITAL CORPORATION, CALIFORNIA

Free format text: SECURITY INTEREST;ASSIGNOR:AM INTERNATIONAL, INC.;REEL/FRAME:006300/0645

Effective date: 19921110