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Publication numberUS3905591 A
Publication typeGrant
Publication dateSep 16, 1975
Filing dateOct 10, 1973
Priority dateSep 24, 1970
Publication numberUS 3905591 A, US 3905591A, US-A-3905591, US3905591 A, US3905591A
InventorsJohann Finkenzeller, Willi Schaefer, Hermann Schorr, Fritz Wittkopp
Original AssigneeSiemens Ag
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Patient{3 s couch
US 3905591 A
Abstract
A patient's couch of an X-ray examining apparatus is swingable about its longitudinal axis and is mounted with its front side upon the instrument carrying device. The couch has holding means for the patient. The present invention is characterized by the use of a supporting member having a core consisting of a hard foam substance the cross-section of which is reduced from its longitudinal axis of symmetry toward the two longitudinal edges and ends with an acute angle at these longitudinal edges. The foam core is enclosed by covering layers of firm material of small elasticity and thickness which are joined at least at the longitudinal edges.
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Description  (OCR text may contain errors)

United States Patent 1191 Schorr et al.

[4 1 Sept. 16, 1975 PATIENTS COUCH [73] Assignee: Siemens Aktiengesellschaft, Munich,

Germany {22] Filed: Oct. 10, 1973 [2]] Appl. No.: 405,058

Related US. Application Data [63) Continuation of Ser. No. 75,116, Sept. 24, I970,

3,257,556 6/1966 Boetcker 269/328 3,434,l65 3/1969 Keane r 269/328 3,449,570 6/l969 Kok 269/328 3,568,669 3/l97l Stites 269/328 Primary Examiner-Roy Lake Assistant ExaminerMark S. Bicks Attorney, Agent, or Firm-Richards & Geier ABSTRACT A patients couch of an X-ray examining apparatus is swingable about its longitudinal axis and is mounted with its front side upon the instrument carrying device. The couch has holding means for the patient. The present invention is characterized by the use of a supporting member having a core consisting of a hard foam substance the cross-section of which is reduced from its longitudinal axis of symmetry toward the two longitudinal edges and ends with an acute angle at these longitudinal edges. The foam core is enclosed by covering layers of firm material of small elasticity and thickness which are joined at least at the longitudinal edges.

5 Claims, 7 Drawing Figures abandoned.

[52] US. Cl 269/328; 5/62 [5]] Int. Cl. A61G 13/00 [58] Field of Search 5/6l, 62, 73, 74, 3l7 R, 5/327; 250/439456; 269/322, 323, 328, 2l5

[56] References Cited UNITED STATES PATENTS 140,747 7/l873 Walker 269/2l5 2,693,987 ll/l954 Wall 269/323 2,735,738 2/l956 Berne 269/328 PATIENTS COUCH DESCRIPTION OF THE INVENTION This is a continuation of application Ser. No. 75,116, filed Sept. 24, 1970, now abandoned.

This invention relates to a patients couch of an X-ray examining apparatus which is swin gable about its longitudinal axis, is mounted with its front side upon the instrument carrying device and has holding means for the patient.

Up to now patients couches swingable about their longitudinal axes were always made in the shape of troughs. Such troughs provide a side hold for a patient who is also often additionally held firmly by belts; due to the rigidity of their shape their walls can be made comparatively thin. They have, however, the drawback that their ray absorption is not uniform throughout their width. Furthermore, they shade to a great extent the range of the spine at swinging angles of 90. It is also disturbing that the patient lies in such troughs in an unnatural position with bent shoulders. However, the use of a normal flat support for the patient has the drawback of disturbing ray absorption by the edges in a position wherein the support is swung about its longitudinal axis; furthermore, there is no side hold for the patient.

it is also known to provide a grooved ledge at two longitudinal sides of a flat supporting plate for the patient, into which may be inserted ends of a longitudinally movable belt, the ends being provided with guides. The drawback of such a belt is that the patient can be held upon the plate only on his back and front positions and also under certain circumstances in the two side positions, but not in inclined positions. Furtherrnore, the patient held by the belt can be shifted between the two grooved ledges when the support is swung about its longitudinal axis even if the belt is tightly fixed. Finally, the ray absorption at the plate edges is disturbing when the plate supporting the patient is in a swung position.

An object of the present invention is to eliminate these drawbacks of prior art devices.

Another object is to provide a patients couch of the above-described type which will be better adapted than existing devices to the requirements of X-ray examination in all its swinging positions.

Other objects of the present invention will become apparent in the course of the following specification.

In the accomplishment of the objectives of the present invention it was found advisable to use a supporting member the core of which consists of a hard foam substance, the cross-section of the core being reduced from its longitudinal axis of symmetry toward the two longitudinal edges and ending with an acute angle at these longitudinal edges. The foam core is enclosed by covering layers of firm material of small elasticity and thickness which are joined at least at the longitudinal edges.

Due to this construction any increase in absorption and consequently any shading of the object being examined is avoided in the range of the two longitudinal edges of the patients couch as well. Then the replacement of a rotary trough by a flat surface constituting the patient's couch provides proper picture-taking requirements. A known patients couch consisting of a flat supporting plate is constructed as a light weight plate with a synthetic hard foam core and mechanically protecting and supporting coverings. However, the hard foam core is enclosed by a hollow profile frame which is integrally connected with the core and the covers and which is used to receive stretcher handles. A supporting plate of this type is not suitable for a swinging movement about its longitudinal axis relatively to the central ray, since the hollow profile frame would shut off the X-ray image to a great extent.

According to an advantageous embodiment of the present invention, fastening members can be connected along wide surfaces with the covers of the supporting member at its head and feet ends. The fastening members are rotatably mounted in the instrument container. This makes it possible to attain a safe attachment of the couch body with the instrument container which is adapted to the construction of the supporting plate for the patient and which transmits forces along a wide surface.

According to a further particularly effective embodiment of the present invention the patient is held transversely to the longitudinal axis of the supporting plate and is also fixed in an inclined position relatively to the supporting plate by supporting means consisting of side supports which are located on both sides of the plate and which are movable along its side edges by sliding blocks. These side supports can be fixed by a bearing block which is pressed by spring force against the supporting plate and which can be released by hand. A supporting plate swingable about its longitudinal axis is shown, for example, in U.S. Pat. No. 3,434,165. This makes it possible to support the patient in a position which is swung sideways relatively to the central ray by making him lean against one of the side supports. This applies to a patient lying upon a supporting plate which is swung sideways, and also to a patient who lies sideways upon a horizontal supporting plate. Furthermore, then all shade forming guinding side ledges upon the supporting plate can be eliminated. Consequently, no shading is produced when edge zones enter the primary ray cone in case the supporting plate is inclined transversely to the central ray. In this manner the doctor has at his disposal for examination a useful swinging range on both sides of over about the longitudinal axis of the supporting plate.

To better reach the sides of patients of different shapes the side supports can have the form of narrow gripping jaws which extend over the supporting plate approximately at a height corresponding to that of a lying patient; they can be movable on both sides of the supporting plate longitudinally as well as transversely thereto and they can be held firm. Thus the side sup ports can be adapted, as far as their distance from each other is concerned, to the effective body width corresponding to the actual position of the patient. This also efiectively prevents any possible side sliding of the patient during the swinging movement, without it being necessary to press the patient firmly against the supporting plate, as would have been the case if a belt was used.

According to a further particularly advantageous embodiment of the present invention each of the side supports can be mounted by guiding means in a carriage slidably guided upon the bottom surface of the supporting plate along the longitudinal edges thereof transversely thereto. The carriage can be stopped and the guiding means with the holding means can be clamped to the carriage. This facilitates the fixing of the side supports to the supporting plate.

According to a further particularly useful embodiment of the present invention the guiding means can be mounted in the carriage in a plate inclined to the supporting plate to provide a compensation in height in case of a transverse setting. This provides in the simplest possible way a compensation for the fact that the center of gravity of patients of a somewhat wider shape lies as a rule higher above the supporting plate.

The invention will appear more clearly from the following detailed description when taken in connection with the accompanying drawings showing by way of example only, preferred embodiments of the inventive idea.

In the drawings:

FIG. 1 is a top view of a patients couch consisting of a flat supporting plate with simple side supports for holding the patient.

FIG. 2 is a section along the line "-11 of FIG. 1.

FIG. 3 is a section along the line IIIIII of FIG. 1.

FIG. 4 is a section through a supporting plate with simple side supports.

FIG. 5 is a perspective view of a simple supporting plate with side supports which are movable longitudinally and transversely.

FIG. 6 shows the bottom side of the longitudinally and transversely movable side supports.

FIG. 7 is a section along the line VII-VII of FIG. 6.

The patients couch shaped as a flat supporting plate and shown in top view in FIG. 1, consists of a body 2 and holding members 3 and 4 flatly glued to the head and foot ends of the body 2. The holding members are shown by cross lines to the extent that they project into the body 2. A foot step 5 is fixed to the body and two side supports 6 and 7 are longitudinally slidable upon As shown in cross-section in FIG. 2, the body 2 consists ofa foam body 8 and two covering layers 9 and 10 glued flatly to the foam body. The holding member 3 located at the head end is glued to the foam body 8 and the upper cover by means of a tongue-like extension 1 I.

The inner structure of the holding member 4 located at the foot end and the attachment of the foot step 5 are shown in FIG. 3. The holding member 4 is hollow, it follows the inner surfaces of the covers and is glued to them. Two U-shaped rails 12 and 13 which are fixed to the instrument container (not shown) extend into the holding member 4. A carriage 14 runs along these U- shaped rails by four ball bearings 15 and I6 (only two of them are shown in FIG. 4). The carriage is moved by a sprindle 17 actuated from the instrument container. A supporting frame 18 is fixed to the carriage and is also connected with the foot step.

Side supports 6 and 7 are shown in section in FIG. 4. They are connected with each other by a carrier I9 which is slidably mounted by sliding jaws 20 and 2l upon the two longitudinal edges of the body 2. A twoarmed lever 23 is connected to the carrier and is swingable about an axis 22. One end of the lever is pressed by a spring 24 against the lower side of the body 2 and is shaped as a brake shoe 25.

FIG. 5 illustrates the arrangement of side supports 29 and 30 which are movable longitudinally and transversely relatively to a simple supporting plate 28 which is swingable about its longitudinal axis 27. Each of the side supports 29 and 30 extends over a longitudinal side of the plate 28 and is located above the surface of the plate to the extent of about 15cm. The side supports are guided by a carriage 37 through the use of guides 31 32, 33 and 34. The carriage 37 is movable along the supporting plate by sliding blocks 35 and 36 and is substantially adjustable transversely to the supporting plate. Furthermore. the carriage 37 is connected by guiding rods 39 and 40 which can be firmly clamped, upon both sides of the supporting plate with a foot rest 38 which can be shifted along the supporting plate.

FIG. 6 shows the mounting of the guides 31, 32, 33 and 34 in the U-shaped rails 41, 42, 43 and 44 of the carriage 37. Stop levers 47 and 48 swingable about axes and 46 are swingably mounted upon the guides 32 and 33. One end of each of the stop levers engages in its rest position a rack 49 or 50 fixed to the carriage. The other end of each stop lever extends into the interior of a separate side support and is connected there with a spring 51 or 52 (FIG. 7), which presses the stop lever with its other end against the rack 49 or 50. There are openings 53 and 54 provided upon the outer sides of the side supports and pressure keys S5 and 56 are lo cated in these openings for actuating the stop levers. The keys 55 and 56 are pressed against the openings by pressure springs 57 and 58. Springs 59 and 60 are located in the carriage 38 adjacent separate side supports to press the side supports outwardly in engagement with one of the guides 31 and 33.

FIG. 7 shows that the U-shaped rails of the carriage are inclined relatively to the plane of the supporting plate. It is also apparent that the last teeth 61 and 62 of the racks 49 and 50 in the pulling direction of the respective side supports have been made higher than the other teeth and that the pressure keys 55 and 56 are provided with stop pins 63 and 64, respectively.

When the doctor presses the key 55 or 56 into the side support 29 or 30, the corresponding lever 47 or 48 is also moved against the action of the spring 51 or 52 and its other end is raised from the rack 49 or 50. The side support is not held any more and is pressed outwardly by the corresponding spring 59 or 60 against the hand of the doctor. The doctor can now push the side support closer to the patient or move it away from the patient depending as to whether he will press harder or will give in. When the pressure key is released the side support is immediately locked in its new position due to the engagement of the lever 47 or 48.

Stop pins 63 and 64 prevent the raising of the levers 47 and 48 by keys 5S and 56 away from the teeth of the racks 49 and 50 to such an extent, that the levers would move beyond the last high teeth 61 and 62 of the racks. Furthermore. this is only possible if when the side support is pulled out the doctor would press downwardly directly by hand the lower arm of the corresponding le- VCI'.

When the foot step is moved by motor, the side sup ports 29 and 30 are also taken along automatically by guiding rods 39 and 40. This maintains the supporting location of the side supports relatively to the patient when the patient is moved longitudinally by motor. If a belt is to be used in addition to the side supports in case of swingings of the supporting plate about its Ion gitudinal axis to the extent of more than 45, such belt can be attached to the carriage 37. This arrangement will not interfer with the possibility of shifting the patient longitudinally by means of the foot step. Furthermore, this avoids the now usual arrangement of rods along the longitudinal edges of the supporting plate for attaching the belt.

The best conditions exist when side supports shown in FIGS. 5 to 7 are arranged upon the patient's supporting plate 2.

The illustrated arrangement of side supports upon slide jaws makes it possible to eliminate the provision of ray absorbing holding elements for the side supports at the longitudinal edges of the supporting member. Obviously, the slide jaws can be replaced by rollers which would run upon the surface of the supporting body without the use of rails or grooves.

We claim:

1. In a patients couch swingable about its longitudinal axis and having a table top, a foot step adjustable in the longitudinal direction of said table top and side supports for fixing the patient, a carriage for said side supports, sliding clamps, said carriage being located under said table top and being guided by said sliding clamps for movement along longitudinal edges of said table top, said carriage having guides for said supports, said guides being mounted in the carriage in a plane inclined to the table top and having means for fixing said side supports at selectable positions relative to said guides, said side supports having the shape of narrow gripping jaws extending above said table top to substantially the height of a lying patient.

2. A patients couch in accordance with claim 1, wherein the last-mentioned means comprise at least one rack connected to said carriage, a swingable stop lever, a spring pressing said stop lever into engagement with said rack, and a pressure key carried by a side support and adapted to move said stop lever out of engagement with said rack.

3. A patient's couch in accordance with claim 2, wherein said pressure key is located upon that side of the side support which is directed away from the patient, the carriage further comprising springs pressing said side supports outwardly transversely to said table top.

4. A patients couch in accordance with claim 2, wherein said rack has a tooth which is the last one when pulling the side supports outwardly, said tooth being higher than the other teeth of the rack and wherein said pressure key has a stop pin preventing the raising of said stop lever above said higher tooth.

5. A patient's couch in accordance with claim 1, comprising guiding rods adjustably connecting said carriage with said foot step, said foot step being movable with said carriage along said table top.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US140747 *Mar 26, 1873Jul 8, 1873 Improvement in joiners clamps
US2693987 *Oct 28, 1952Nov 9, 1954Wall Douglas EugeneMechanically controlled embalming table
US2735738 *Nov 25, 1953Feb 21, 1956 Berne
US3257556 *Oct 3, 1963Jun 21, 1966American Sterilizer CoTiltable surgical table suited for radiograph-urology procedures
US3434165 *Jul 3, 1967Dec 6, 1983 Title not available
US3449570 *Oct 22, 1965Jun 10, 1969Philips CorpX-ray table having a plurality of pairs of slings with oppositely windable members
US3568669 *Mar 27, 1969Mar 9, 1971Physicare IncTilting health table
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4691393 *Apr 25, 1986Sep 8, 1987Midmark CorporationAngular tilt control mechanism for a wheeled stretcher
US5191663 *Jul 2, 1992Mar 9, 1993Hill-Rom Company, Inc.Hospital bed sideguard pads
US5564662 *Aug 15, 1994Oct 15, 1996Midmark CorporationUneven floor compensating system for surgery tables
US5628078 *Jan 5, 1995May 13, 1997Midmark CorporationSurgical table side extender assembly
US5754997 *Jan 4, 1996May 26, 1998Midmark CorporationSupport cushion for surgery table
US5926869 *Nov 3, 1997Jul 27, 1999Ge Yokogawa Medical Systems, LimitedTable
US6038718 *Aug 15, 1994Mar 21, 2000Midmark CorporationSurgical table
US6212714Jul 22, 1998Apr 10, 2001Hill-Rom, Inc.Hospital bed and mattress having a retracting foot section
US6282736Feb 7, 2000Sep 4, 2001Hill-Rom Services, Inc.Proning bed
US6363552 *Mar 17, 2000Apr 2, 2002Hill-Rom Services, Inc.Bed siderail
US6496993Jan 5, 2001Dec 24, 2002Hill-Rom Services, Inc.Hospital bed and mattress having a retracting foot section
US6499160Aug 31, 2001Dec 31, 2002Hill-Rom Services, Inc.Hospital bed
US6526610Jun 25, 1999Mar 4, 2003Hill-Rom Services, Inc.Proning bed
US6609260Mar 16, 2001Aug 26, 2003Hill-Rom Services, Inc.Proning bed and method of operating the same
US6611979Dec 29, 2000Sep 2, 2003Hill-Rom Services, Inc.Mattress having a retractable foot section
US6640360 *Apr 2, 2002Nov 4, 2003Hill-Rom Services, Inc.Bed siderail
US6684427Dec 20, 2002Feb 3, 2004Hill-Rom Services, Inc.Hospital bed and matress having a retractable foot section
US6691347Dec 31, 2002Feb 17, 2004Hill-Rom Services, Inc.Hospital bed
US6694549Apr 20, 2001Feb 24, 2004Hill-Rom Services, Inc.Bed frame with reduced-shear pivot
US6701553Apr 21, 2000Mar 9, 2004Hill-Rom Services, Inc.Proning bed
US6817363Jul 16, 2001Nov 16, 2004Hill-Rom Services, Inc.Pulmonary therapy apparatus
US6820293Sep 26, 2002Nov 23, 2004Hill-Rom Services, Inc.Bed siderail pad apparatus
US6862759Mar 4, 2003Mar 8, 2005Hill-Rom Services, Inc.Hospital bed
US6862761Jul 10, 2003Mar 8, 2005Hill-Rom Services, Inc.Hospital proning bed
US6880189Aug 26, 2003Apr 19, 2005Hill-Rom Services, Inc.Patient support
US6928673Jul 25, 2003Aug 16, 2005Hill-Rom Services, Inc.Siderail pad for hospital bed
US7000272Feb 3, 2004Feb 21, 2006Hill-Rom Services, Inc.Hospital bed and mattress having a retractable foot section
US7028352Aug 22, 2002Apr 18, 2006Hill-Rom Services, Inc.Apparatus and method for closing hospital bed gaps
US7073220Mar 26, 2004Jul 11, 2006Hill-Rom Services, Inc.Bed siderail having a latch
US7083355Sep 29, 2003Aug 1, 2006The Brewer Company, LlcStirrup support indexer for a medical examination table
US7093313Sep 29, 2003Aug 22, 2006The Brewer Company, LlcHeadrest linkage
US7100222Jul 2, 2004Sep 5, 2006Hill-Rom Services, Inc.Apparatus and method for mounting hospital bed accessories
US7107636Mar 16, 2004Sep 19, 2006Hill-Rom Services, Inc.Gap filler for bed
US7137160 *Mar 8, 2004Nov 21, 2006Hill-Rom Services, Inc.Proning bed
US7200882Jan 21, 2005Apr 10, 2007Hill-Rom Services, Inc.Movable control panel for a patient support
US7216384Dec 22, 2005May 15, 2007Hill-Rom Services, Inc.Hospital bed and mattress having a retractable foot section
US7222377Mar 31, 2005May 29, 2007Hill-Rom Services, Inc.Apparatus and method for closing hospital bed gaps
US7293305Aug 28, 2006Nov 13, 2007Hill-Rom Services, Inc.Apparatus and method for mounting hospital bed accessories
US7296312Sep 8, 2003Nov 20, 2007Hill-Rom Services, Inc.Hospital bed
US7343916Aug 17, 2004Mar 18, 2008Hill-Rom Services, Inc.Pulmonary therapy apparatus
US7350249Sep 29, 2004Apr 1, 2008The Brewer Company, LlcLeg rest and kneeler assembly for a medical examination table
US7406731Mar 30, 2006Aug 5, 2008Holl-Rom Services, Inc.Hospital bed
US7430771Apr 3, 2007Oct 7, 2008Hill-Rom Services, Inc.Movable control panel for a patient support
US7506390Sep 28, 2007Mar 24, 2009Hill-Rom Services, Inc.Patient support apparatus having controller area network
US7513000Jul 28, 2006Apr 7, 2009The Brewer Company, LlcMedical examination table
US7520006Mar 30, 2006Apr 21, 2009Hill-Rom Services, Inc.Hospital bed including moveable foot portion
US7523515Apr 13, 2007Apr 28, 2009Hill-Rom Services, Inc.Hospital bed and mattress having a retractable foot section
US7591034Apr 12, 2007Sep 22, 2009Hill-Rom Services, Inc.Apparatus and method for closing hospital bed gaps
US7669263Mar 30, 2006Mar 2, 2010Hill-Rom Services, Inc.Mattress assembly including adjustable length foot
US7703158Sep 28, 2007Apr 27, 2010Hill-Rom Services, Inc.Patient support apparatus having a diagnostic system
US7788747Sep 21, 2009Sep 7, 2010Hill-Rom Services, Inc.Apparatus and method for closing hospital bed gaps
US7797775Oct 2, 2008Sep 21, 2010Stander, Inc.Sliding mobility assistance device
US7845033Feb 23, 2009Dec 7, 2010The Brewer Company, LlcMedical examination table
US7917978Mar 2, 2005Apr 5, 2011Hill-Rom Services, Inc.Variable height siderail for a bed
US7930778Dec 7, 2007Apr 26, 2011Hill-Rom Services, Inc.Pinch-preventing unit for bed guardrail
US7931607Feb 28, 2008Apr 26, 2011Hill-Rom Services, Inc.Pulmonary therapy apparatus
US7934276Feb 7, 2007May 3, 2011Hill-Rom Services, Inc.End panel for a patient-support apparatus
US8096006Nov 8, 2010Jan 17, 2012The Brewer Company, LlcMedical examination table
US8104122Dec 18, 2006Jan 31, 2012Hill-Rom Services, Inc.Patient support having an extendable foot section
US8239986Mar 13, 2009Aug 14, 2012Hill-Rom Services, Inc.Siderail assembly for a patient-support apparatus
US8286282Nov 11, 2011Oct 16, 2012Hill-Rom Services, Inc.Bed frame and mattress synchronous control
US8341778Jan 23, 2012Jan 1, 2013Hill-Rom Services, Inc.Bed gap filler and footboard pad
US8370978 *Jul 13, 2010Feb 12, 2013Hill-Rom S.A.S.Hospital bed equipped with a patient mobility aid device
US8479329Dec 20, 2011Jul 9, 2013The Brewer Company, LlcMedical examination table
US20110010864 *Jul 13, 2010Jan 20, 2011Jean-Bernard DuvertHospital bed equipped with a patient mobility aid device
USRE43155 *Aug 6, 2009Feb 7, 2012Hill-Rom Services, Inc.Hospital bed and mattress having a retractable foot section
USRE43532Jun 3, 2009Jul 24, 2012Hill-Rom Services, Inc.Hospital bed
WO2002030285A2 *Oct 10, 2001Apr 18, 2002Ge Med Sys Global Tech Co LlcImaging table mount
Classifications
U.S. Classification5/601, 5/425, 5/607
International ClassificationA61B6/04
Cooperative ClassificationA61B6/04, A61B6/0442
European ClassificationA61B6/04A8, A61B6/04