# US 11,439,556 B2 · Examination table

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- Number: US 11,439,556 B2
- Document ID: US11439556B2
- Status: Granted
- Kind: B2
- Application number: 17/134,160
- Filed: 2020-12-24
- Published: 2021-04-22
- Granted: 2022-09-13
- Earliest claimed: 2018-11-02
- Assignees: Okudaira Tadahiro
- Applicants: Tadahiro Okudaira
- Inventors: Tadahiro Okudaira
- Web page: https://patentgrep.com/patent/US11439556B2

## CPC

- A61G 13/0009: {Obstetrical tables or delivery beds (chairs for gynaecological purposes A61G15/005)}
- A47C 17/16: {Seating furniture} changeable to beds by tilting or pivoting the back-rest
- A47C 20/00: Head-, foot- or like rests for beds, sofas or the like
- A61G 13/0018: {Physician's examining tables}
- A61G 13/04: tiltable around transverse or longitudinal axis
- A61G 13/08: the table being divided into different adjustable sections
- A61G 13/101: {Clamping means for connecting accessories to the operating table (supports as part of surgical instruments A61B90/50)}
- A61G 13/105: {Portable, foldable or collapsible tables, e.g. for surgery or treatment (portable, foldable or collapsible chairs for surgery or dental treatment A61G15/002)}
- A61G 13/1225: {Back}
- A61G 13/123: {Lower body, e.g. pelvis, hip, buttocks}
- A61G 13/1245: {Knees, upper or lower legs}
- A61G 13/107: {Supply appliances (supply appliances for dental machines A61C1/0007)}
- A61G 2200/12: Women
- A61G 2200/327: supine
- A61G 2200/34: sitting
- A61G: TRANSPORT, PERSONAL CONVEYANCES OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS (appliances for aiding patients or disabled persons to walk A61H3/00); OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES (embalming corpses A01N1/00)
- A47C: CHAIRS; SOFAS; BEDS

## Abstract

An examination table that can be used in other places than a hospital is provided. A portable examination table comprises a seat part for supporting a bottom of a patient, an angle-changeable backrest part for supporting a back of the patient, a pair of angle-changeable arm parts, abutting parts configured to be raised or lowered when the angle of the arm parts relative to the seat part is changed and abut the back of the knees of the patient, and link parts configured to link the arm parts to the backrest part and change the angle of the arm parts, and is configured to convert between an end-sitting positioning state, a lithotomy positioning state, and a folded state.

## Claims

### Claim 1

A portable examination table comprising:
a seat part for supporting a bottom of a patient, the seat part being positioned relative to a floor by a leg part having a plurality of legs,
a backrest part for supporting a back of the patient, the backrest part being provided at one end of the seat part and capable of changing an angle relative to the seat part,
a pair of arm parts capable of changing an angle relative to the seat part, the pair of arm parts being provided at another end of the seat part avoiding the front of the patient leaning his/her back against the backrest part,
abutting parts configured to couple end portions of the pair of arm parts at farther ends from the seat part, and to be raised or lowered when the angle of the pair of arm parts relative to the seat part is changed and abut the back of the knees of the patent when raised, the abutting parts including, with respect to each of the pair of arm parts:
a front link linked to the backrest part, wherein
the arm part is connected to a first horizontal bar, and the first horizontal bar is connected to a second horizontal bar,
movement of the backrest part causes the arm part to mechanically lift the first horizontal bar and the second horizontal bar, and
link parts configured to, when the angle of the backrest part relative to the seat part is changed, link the pair of arm parts with the backrest part and change the angle of the pair of arm parts relative to the seat part,
wherein the portable examination table is configured to convert between:
an end-sitting positioning state in which the backrest part is erected relative to the seat part so that the patient seated on the seat part is in an end-sitting position,
a lithotomy positioning state in which the backrest part is reclined and the abutting parts lifted by the pair of arm parts linked with the backrest part via the link parts lift the back of the knees of the patient, so that the patient is in a lithotomy position, and
a folded state in which the angle between the seat part and the backrest part is smaller than in the end-sitting positioning state so that the entire dimension of the portable examination table is smaller than that in the end-sitting positioning state.

### Claim 2 (depends on 1)

The portable examination table according to claim 1, further comprising:
a linkage configured to, when the portable examination table is converted to the folded state, narrow at least part of a gap between the plurality of legs and reduce the dimension of entire leg part compared to that in the end-sitting positioning state and the lithotomy positioning state.

### Claim 3 (depends on 1)

The portable examination table according to claim 1, wherein, in at least one of the seat part and the backrest part, a portion for contacting with a body of the patient is detachable.

### Claim 4 (depends on 1)

The portable examination table according to claim 1, wherein at least one of the seat part and the backrest part has a frame part surrounding a region for contacting with a body of the patient and a sheet detachably stretched across the frame part.

### Claim 5 (depends on 1)

The portable examination table according to claim 1, further comprising an attachment part for attaching a medical peripheral.

### Claim 6 (depends on 1)

The portable examination table according to claim 1, wherein:
the front link is connected at opposite ends to a first joint and to a second joint, the first joint being connected to an end portion of an upper link connected to the backrest part,
the arm part is connected at opposite ends between the second joint and the first horizontal bar,
a joint part connects the first horizontal bar to the second horizontal bar, and
the upper link is connected to the first joint to cause the arm part to rotate about the second joint so as to mechanically lift the first horizontal bar and the second horizontal bar.

### Claim 7 (depends on 1)

The portable examination table according to claim 1, wherein:
the front link is fixed at an angle to the arm part.

### Claim 8 (depends on 7)

The portable examination table according to claim 7, wherein:
the front link is connected at opposite ends to a first joint and to a second joint, the first joint being connected to an end portion of an upper link connected to the backrest part,
the arm part is connected at opposite ends between the second joint and the first horizontal bar,
a joint part connects the first horizontal bar to the second horizontal bar, and
the upper link is connected to the first joint to cause the arm part to rotate about the second joint so as to mechanically lift the first horizontal bar and the second horizontal bar.