MEDICAL EXAMINATION TABLE

• US 3,814,414 A
• Filed: 11/08/1973
• Issued: 06/04/1974
• Est. Priority Date: 07/24/1972
• Status: Expired due to Term

• Current Assignee: Hector Chapa
• Original Assignee: Hector Chapa
• Inventors: Chapa, Hector
• Primary Examiner(s): Lake, Roy
• Assistant Examiner(s): Bicks, Mark S.
• Application Number:
  US05/414,088
• Time in Patent Office: 208 Days
• Field of Search: 128/134 269/60,322,323,324,325,326,328
• US Class Current: 5/601
• CPC Class Codes: A61B 6/04 Positioning of patients; Tiltable beds or the like operating tables A61G13/00; operating chairs A61G15/00
• CPC Class Codes: A61B 6/0442 made of non-metallic materials
• CPC Class Codes: A61F 5/3784 directly connected to the trunk, e.g. with jacket
• CPC Class Codes: A61G 13/02 Adjustable operating tables; Controls therefor
• CPC Class Codes: A61G 2210/50 for radiography

Abstract

A medical examination table intended primarily for X-ray examinations, and comprising a movable base and a table proper movable vertically relative thereto. The table proper comprises a main frame, and an extensible section. The main frame is supported at each end from the base by an hydraulically actuated piston and is tiltable on a longitudinal axis under the influence of an hydraulically actuated piston. A screw stem provides adjustment for the extensible section relative to the main frame and is actuated by an electric motor. An hydraulic system is provided for the hydraulic cylinders and included therein is a power cylinder in which hydraulic pressure is generated by an electric motor. An electric system is also provided which includes the motors aforesaid. A control console includes operating levers for determining the flow of the hydraulic medium to the hydraulic cylinders and switching members for the electric circuit.

Claims

1. In a medical table for X-ray examinations:

a. a mobile base;

b. a front hydraulic cylinder upstanding from said base and having a piston projecting upwardly therefrom;

c. a rear hydraulic cylinder upstanding from said base and having a piston upstanding therefrom;

d. a rectangular table frame presenting a front end piece, a rear end piece and side members;

e. a loose pivotal connection between said rear end piece and the piston of said rear cylinder and located centrally thereof;

f. a shaft non-rotatably connected to said front end piece centrally thereof;

g. a bearing pivotally mounted on the upper end of the piston of said front hydraulic cylinder on a transverse axis, said bearing receiving said shaft;

h. an extensible stabilizer comprising a female member secured to said base and a male member having an opening receiving said shaft;

i. an arm extending radially from said shaft;

j. a piston having its upper end pivotally connected to said arm;

k. an hydraulic cylinder receiving said last mentioned piston and having its lower end pivotally connected to the male member of said stabilizer;

l. a transparent extensible table section mounted for longitudinal sliding movement on said frame;

m. means for adjusting said extensible section relative to said frame and holding it in an adjusted position, and n. means for securing a patient in position on said extensible section.

2. The medical examination table of claIm 1 in which the means for adjusting the extensible section relative to the frame comprises a boss depending from said extensible section and having a threaded opening, together with a screw stem threadedly received in said opening and having its opposite ends fixedly secured to said frame, and an electric motor for rotating said screw stem.

3. The medical examination table of claim 1 in which the bearing has an end face with calibrations inscribed thereon, and in which the shaft projects beyond said end face and carries a pointer cooperating with said calibrations.

4. The medical examination table of claim 1 in which said hydraulic cylinders are included in an hydraulic system which also includes a power unit mounted on said base, and including a tank, a pump and an electric motor for driving said pump.

5. The medical examination table of claim 4 in which the tank has a connection for a hand pump to be used in case of power failure.

6. The medical examination table of claim 4 in which the electric motors are included in an electric circuit, together with a console on said base in which is mounted electric switches for said electric circuit and operating levers for said hydraulic system.

7. The medical examination table of claim 1 in which the base is of elongate U-shape presenting front and rear legs, with said front hydraulic cylinder mounted on said front leg and the rear hydraulic cylinder on said rear leg.

8. The medical examination table of claim 1 in which the means for securing a patient in position on the extensible table section comprises a garment that is wrapped about the patient and includes two sets of straps which, when the garment is wrapped about the patient, extend from opposite sides of the garment, a fitting on the end of each of said straps and a plurality of strap anchors on said extensible section cooperating with said fittings.

9. The medical examination table of claim 8 in which the garment has upper and side edges and is formed with three arm hole openings adjacent to said upper edge with one of said openings being located centrally of the garment and each of the other openings located adjacent to a side edge, and one set of straps has end portions secured to the garment centrally thereof and the other set of straps has end portions secured to the garment adjacent to a side edge thereof.

10. The medical examination table of claim 9 in which the extensible table section is of plexiglass and has side flanges overlying the side members of the frame, and the strap anchors are mounted on the exterior faces of said flanges.