US2775496A - Tilting x-ray medical examination table - Google Patents

Tilting x-ray medical examination table Download PDF

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Publication number
US2775496A
US2775496A US424997A US42499754A US2775496A US 2775496 A US2775496 A US 2775496A US 424997 A US424997 A US 424997A US 42499754 A US42499754 A US 42499754A US 2775496 A US2775496 A US 2775496A
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US
United States
Prior art keywords
table top
base
medical examination
tilting
examination table
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.)
Expired - Lifetime
Application number
US424997A
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English (en)
Inventor
Berggren Detlof Emanuel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hartford National Bank and Trust Co
Original Assignee
Hartford National Bank and Trust Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hartford National Bank and Trust Co filed Critical Hartford National Bank and Trust Co
Application granted granted Critical
Publication of US2775496A publication Critical patent/US2775496A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

  • the axis of rotation should lie in the middle of the table top, several advantages would be obtained.
  • the construction can be lighter 'and less material is required.
  • Such a device could be manufactured cheaper if the realization of the symmetrical arrangement would not ental complications.
  • the difference between the half length of the top and the height of the supporting surface above the floor requires the table top to shift longitudinally also during rotation.
  • the table top is rotatable without shifting along a curved sur-face of a supporting base.
  • flexible pulling means to connect a rotary disc arranged in the base and driven by a driving mechanism to the table top at two points of application lying on either side of the point at which the contact surface of the table top rests upon the curved surface of the base.
  • the said connecting means may be chains.
  • Fig. 1 is a diagrammatic view of the X-ray tablearrangement embodying the present invention
  • Figs. 2 and ⁇ 3 are diagrammatic views of alternate e'mbodiments of thepresent invention. i ⁇ The construction is based on recognition of the fact that two curves determined by difierent equations may partly coincide upon a proper choice of some dimensions.
  • the numeral 1 designates the table top and 2 a surface of the base 5 ⁇ which iscircularly curved about a point 3 and along which ⁇ the table top can rotate. If this movementis considred as a rotation of the base withrespect to thetable top,1the cente ⁇ 3 ⁇ of the ⁇ curved ⁇ surface 2 is seen tofm'ove to ⁇ 3 'alongja stigightlinfe.
  • Theibase comprses a disc 1 7 which is 'rotatabl eabout "the 'ce nter l "This mov e"s ⁇ "to 4 along part of a cycloid upon rotation of the table. It is supposed that this movement is such that the distance of the point 4 relatively to the table top 1 is equal to that of the point 4. This cycloid is determined by the radius of the circle 2 and the distance between the points 3 and 4.
  • the point 4 is connected to two points 6 and 7 of the table top 1 in that a belt rope or chain attached at these points is arranged over a rotary disc 17. consequently point 4 must also describe an ellipse of which the lines 8 and 9 are the radius Vectors. It is possible to construct an ellipse which has the points 4 and 4 and the apex 4 in common with the cycloid described above by a proper choice of the joining line 6-7.
  • the foci 6 and 7 follows from this Construction.
  • the position of the joining line prefferably be arranged so that the two curves are substantially coincident along the distance covered by the angle of rotation of a value of Furthermore, upon ⁇ a proper choice of the dismensions the' deviation is found to -be so small that it can easily be ob- Viated by the use of a rotary disc which is arranged resiliently.
  • FIG. 2 This leads to the arrangement shown diagrammatcally in Fig. 2.
  • the table top is shown in different positions and in addition the points are indicated at which the center of gravity 10 of the table top carrying a patient is located in each of the positions.
  • the center of gravity 10 moves along the indicated curve 19. From this it will be seen that the difference of height described bythe center of gravity in a complete rotation is very sli-ght and much smaller than if the top rotates about a stationary axis consequently the energy required to rotate the table top can also be less.
  • the radius of the surface 2 is greater the symmetrical arrangement is approximated. However, the increase of this dimension cannot be pushed too far since this causes the stablity of the table top 1 to decrease as it approximates to its vertical position.
  • the increase of the curvature of the cycloidal course of the point 4 causes the distance between the points 6 and 7 in which the connecting means of the table top 1 are attached to decrease with a resultant decrease of the sta bility. consequently the radius must be made as large as possible but not too large, for example not exceeding one half of the height of the space available below the table top in its horizontal position.
  • the most advantageous arrangement of the rotary disc is at as small as possible a height above the floor on the l'e'bise'ting "the angle of rotation. In this case it is spaced' 'from the' table top 'by"a 'maximum 'distance 'and ⁇ it describes a symmetrcal course relatively thereto.
  • These means are int'he "form offiexib'le 'tapes ⁇ 11 and l'zmadeflor example, of steel.
  • Tape connects to the point-15 at one end of the table top 1 and tape 12 .connects at one of its ends to the point 16 of the base 5.
  • 'X-*ray ⁇ medical examination table comprisinga base having at least one curved tsurface, a table top rotatable on said curved surface, the radius of said curved surface not exceeding /z the height measured from the bottom of said base to the bottom :surface of said table top, a rotating disc, means mounting said disc on said base, and connecting means comprisin'g at least one flexible tape' fixed to points t opposite ends of said base and-engaging said ?curved surface and .said table top, and another exible tape Secured at both ends to -spaced points "on said table top, a part of the intermediate portion of said other flexible tape being passes'd arou'nd and in e'ngagement with said-disc.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Engineering & Computer Science (AREA)
  • Radiology & Medical Imaging (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
US424997A 1953-05-13 1954-04-22 Tilting x-ray medical examination table Expired - Lifetime US2775496A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL324882X 1953-05-13

Publications (1)

Publication Number Publication Date
US2775496A true US2775496A (en) 1956-12-25

Family

ID=19784134

Family Applications (1)

Application Number Title Priority Date Filing Date
US424997A Expired - Lifetime US2775496A (en) 1953-05-13 1954-04-22 Tilting x-ray medical examination table

Country Status (7)

Country Link
US (1) US2775496A (pl)
BE (1) BE527477A (pl)
CH (1) CH324882A (pl)
DE (1) DE936285C (pl)
FR (1) FR1114840A (pl)
GB (1) GB755774A (pl)
NL (1) NL87134C (pl)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5361436A (en) * 1992-09-02 1994-11-08 Siemens Aktiengesellschaft Patient support apparatus for medical examinations
EP0832603A1 (de) * 1996-09-27 1998-04-01 Siemens-Elema AB Patientenuntersuchungstisch
US20070101497A1 (en) * 2005-11-10 2007-05-10 Maquet Gmbh & Co. Kg Hydraulic column clamping
US20070107129A1 (en) * 2005-11-14 2007-05-17 Maquet Gmbh & Co. Kg Patient bed for an operating table
US20070107126A1 (en) * 2005-11-14 2007-05-17 Maquet Gmbh & Co. Kg Device for adjusting an operating table
US20070110448A1 (en) * 2005-11-14 2007-05-17 Jurgen Ruch Method and device for bidirectional IR data transfer between a medical treatment table and an operator control device
US20070107123A1 (en) * 2005-11-14 2007-05-17 Maquet Gmbh & Co. Kg Patient bed system
US20070107125A1 (en) * 2005-11-14 2007-05-17 Maquet Gmbh & Co. Kg Operating table
US20070118989A1 (en) * 2005-11-14 2007-05-31 Maquet Gmbh & Co. Kg Patient bed system
US7669261B2 (en) 2005-11-10 2010-03-02 Maquet Gmbh & Co. Kg Apparatus for adjusting the bed of an operating table
US7896569B2 (en) 2005-11-14 2011-03-01 Maquet Gmbh & Co. Kg Joint arrangement for the connection of two segments of a patient bed

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3115483C2 (de) * 1981-04-16 1986-03-27 Otto Dr. 6204 Taunusstein Lauff Behandlungsliege

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1658103A (en) * 1924-08-29 1928-02-07 Sordelli Ernesto Device for radiotherapy
US1820436A (en) * 1930-05-05 1931-08-25 Ernest J Carlson Mason's leveling table
US1874582A (en) * 1930-11-01 1932-08-30 Westinghouse X Ray Co Inc Tilt table
FR932612A (fr) * 1945-08-24 1948-03-26 Philips Nv Table d'examen radiologique
US2561741A (en) * 1948-04-16 1951-07-24 Western Electric Co Tiltable table
US2588762A (en) * 1950-05-08 1952-03-11 Georgie V Reager Sectional folding beauty-health board with rocker means
DE850928C (de) * 1943-08-12 1952-09-29 Siemens Reiniger Werke Ag Lagerungstisch fuer die Untersuchung mittels Roentgenstrahlen
US2635675A (en) * 1948-01-16 1953-04-21 Int Harvester Co Seat with resiliently supported arm

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1658103A (en) * 1924-08-29 1928-02-07 Sordelli Ernesto Device for radiotherapy
US1820436A (en) * 1930-05-05 1931-08-25 Ernest J Carlson Mason's leveling table
US1874582A (en) * 1930-11-01 1932-08-30 Westinghouse X Ray Co Inc Tilt table
DE850928C (de) * 1943-08-12 1952-09-29 Siemens Reiniger Werke Ag Lagerungstisch fuer die Untersuchung mittels Roentgenstrahlen
FR932612A (fr) * 1945-08-24 1948-03-26 Philips Nv Table d'examen radiologique
US2635675A (en) * 1948-01-16 1953-04-21 Int Harvester Co Seat with resiliently supported arm
US2561741A (en) * 1948-04-16 1951-07-24 Western Electric Co Tiltable table
US2588762A (en) * 1950-05-08 1952-03-11 Georgie V Reager Sectional folding beauty-health board with rocker means

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5361436A (en) * 1992-09-02 1994-11-08 Siemens Aktiengesellschaft Patient support apparatus for medical examinations
EP0832603A1 (de) * 1996-09-27 1998-04-01 Siemens-Elema AB Patientenuntersuchungstisch
US5790996A (en) * 1996-09-27 1998-08-11 Siemens-Elma Ab Examination table for supporting and positioning a patient in a medical examination apparatus
US20070101497A1 (en) * 2005-11-10 2007-05-10 Maquet Gmbh & Co. Kg Hydraulic column clamping
US7865985B2 (en) 2005-11-10 2011-01-11 Maquet Gmbh & Co. Kg. Hydraulic column clamping
US7669261B2 (en) 2005-11-10 2010-03-02 Maquet Gmbh & Co. Kg Apparatus for adjusting the bed of an operating table
EP1785121A3 (de) * 2005-11-14 2008-08-06 MAQUET GmbH & Co. KG Operationstisch
US7669258B2 (en) 2005-11-14 2010-03-02 Maquet GbmH & Co. KG Patient bed system
US20070107125A1 (en) * 2005-11-14 2007-05-17 Maquet Gmbh & Co. Kg Operating table
US20070118989A1 (en) * 2005-11-14 2007-05-31 Maquet Gmbh & Co. Kg Patient bed system
US20070110448A1 (en) * 2005-11-14 2007-05-17 Jurgen Ruch Method and device for bidirectional IR data transfer between a medical treatment table and an operator control device
US7526823B2 (en) 2005-11-14 2009-05-05 Maquet Gmbh & Co. Kg Patient bed system
US7634826B2 (en) 2005-11-14 2009-12-22 Maquet Gmbh & Co. Kg Patient bed system
US20070107123A1 (en) * 2005-11-14 2007-05-17 Maquet Gmbh & Co. Kg Patient bed system
US20070107126A1 (en) * 2005-11-14 2007-05-17 Maquet Gmbh & Co. Kg Device for adjusting an operating table
US7694366B2 (en) 2005-11-14 2010-04-13 Maquet Gmbh & Co. Kg Operating table
US7810185B2 (en) 2005-11-14 2010-10-12 Maquet GmbH & Co. KGaA Device for adjusting an operating table
US7818839B2 (en) 2005-11-14 2010-10-26 Maquet GmbH & Co. KGaA Patient bed for an operating table
CN1973802B (zh) * 2005-11-14 2010-12-01 迈奇两合公司 手术台
US20070107129A1 (en) * 2005-11-14 2007-05-17 Maquet Gmbh & Co. Kg Patient bed for an operating table
US7896569B2 (en) 2005-11-14 2011-03-01 Maquet Gmbh & Co. Kg Joint arrangement for the connection of two segments of a patient bed
US8249457B2 (en) 2005-11-14 2012-08-21 Maquet Gmbh & Co. Kg Method and device for bidirectional IR data transfer between a medical treatment table and an operator control device

Also Published As

Publication number Publication date
BE527477A (pl)
CH324882A (de) 1957-10-15
GB755774A (en) 1956-08-29
FR1114840A (fr) 1956-04-17
NL87134C (pl)
DE936285C (de) 1955-12-07

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