IP Library › Granted Patent US 12,490,894
Granted Patent B2
US 12,490,894 · App. 17/483,347 · Granted Dec 9, 2025

Physical assessment device

Inventors: Raymond A. Lia (Auburn, NY); Steven R. Slawson (Camillus, NY); Robert L. Vivenzio (Auburn, NY); John R. Strom (Moravia, NY); Michael T. McMahon (Syracuse, NY); David G. Perkins (Tully, NY); Thaddeus J. Wawro (Auburn, NY); Scott Andrew Martin (Camillus, NY); Lei Guo (Hopewell Junction, NY)
Assignee: WELCH ALLYN, INC.
A61B1/227A61B1/00006A61B1/00032A61B1/00052A61B1/00105A61B1/00108A61B1/00124A61B1/00128A61B1/00195A61B3/0091A61B3/12A61B3/1208
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Quick Facts
Patent No.
US 12,490,894
App. No.
17/483,347
Granted
Dec 9, 2025
Kind
B2
Abstract

An instrument head is provided for attachment to a plurality of instrument handles having different power profiles. The instrument head contains an illumination assembly including at least one LED as well as a drive circuit for detecting a power profile of an attached instrument handle and converting variable voltages received from the attached instrument handle to a constant current for powering the at least one LED based on the power profile. Accordingly, the instrument head enables use with a plurality of instrument handles, including those originally configured for use only with incandescent light sources.

Claims (26)

1 . A physical assessment device comprising:

an instrument head having a distal end, an opposing proximal end, and an interior;

an optical assembly disposed within the instrument head, the optical assembly comprising a plurality of optical components disposed along an optical axis; and

an adapter interface extending outwardly from the proximal end of the instrument head, the adapter interface aligned with the optical axis wherein the adapter interface comprises:

a distal portion,

a proximal portion, and

a recessed portion between the distal and proximal portions, the recessed portion having a perimeter comprising a series of machined flats in which the proximal portion and the recessed portion of the adapter interface, including the series of machined flats, are each disposed outside the interior of the instrument head, and wherein the distal portion further comprises a plurality of circumferentially spaced axial openings, each of the axial openings retaining a ball extending into the recessed portion and biased by a compression spring.

2 . The physical assessment device according to claim 1 , further comprising a smart device adapter releasably engageable with the adapter interface, the smart device adapter including a housing sized and configured for engaging and receiving a smart device.

3 . The physical assessment device of claim 2 , in which the smart device adapter includes a device engagement portion on a front side of the housing comprising a plurality of engagement surfaces that are engageable with the series of machined flats of the adapter interface.

4 . The physical assessment device according to claim 3 , wherein the plurality of engagement surfaces includes three engagement surfaces formed at a distal end of the device engagement portion in which two of the engagement surfaces are in spaced parallel relation to one another and a third engagement surface is orthogonal to the two parallel and spaced engagement surfaces, thereby creating a slot.

5 . The physical assessment device according to claim 4 , in which one of the two parallel and spaced engagement surfaces is formed on a movable slider.

6 . The physical assessment device according to claim 5 , wherein the movable slider biasedly engages the engagement surface into the slot defined by the three engagement surfaces.

7 . The physical assessment device according to claim 3 , in which the smart device adapter includes an opening at the device engagement portion that is aligned with the optical axis of the optical assembly when attached to the adapter interface.

8 . The physical assessment device according to claim 4 , in which the machined flats of the recessed portion are configured to enable the smart device adapter to be attached in multiple rotational orientations about the optical axis.

9 . The physical assessment device according to claim 2 , in which the smart device adapter further comprises an axial slot disposed on a rear side of the adapter housing, the axial slot being sized and shaped to receive a smart device engagement member.

10 . The physical assessment device according to claim 9 , in which the smart device engagement member further includes a groove formed in one side, the groove extending in a direction that is parallel to the axial slot.

11 . The physical assessment device according to claim 10 , in which the smart device adapter further includes a detent member engageable with the groove of the smart device engagement member when attached through the axial slot of the adapter housing.

12 . The physical assessment device according to claim 11 , in which the detent member is disposed within a detent cover supported within the axial slot of the smart device adapter.

13 . The physical assessment device according to claim 12 , wherein the detent member is biased by a spring supported by the detent cover.

14 . The physical assessment device according to claim 13 , including a strip of insulating material disposed on an interior surface of the detent cover, the strip being configured to provide resistance to the smart device engagement member when attached to the smart device adapter via the axial slot.

15 . The physical assessment device according to claim 1 , in which the adapter interface retains at least one optical component of the optical assembly.

16 . The physical assessment device according to claim 1 , in which the biased balls extending from the plurality of axial openings formed in the distal portion of the adapter interface are configured to engage a smart device adapter when attached to the adapter interface.

17 . The physical assessment device according to claim 1 , wherein the device is a handheld diagnostic medical examination instrument.

18 . The physical assessment device according to claim 17 , wherein the handheld diagnostic medical examination instrument is an ophthalmoscope.

19 . The physical assessment device according to claim 17 , wherein the handheld diagnostic medical examination instrument is an otoscope.

20 . The physical assessment device according to claim 1 , further comprising a brow rest disposed over the proximal portion of the adapter interface.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 4, 2025
From: LIA, RAYMOND A.; SLAWSON, STEVEN R.; VIVENZIO, ROBERT L.; STROM, JOHN R.; MCMAHON, MICHAEL T.; PERKINS, DAVID G.; COON, KENNETH V.; WAWRO, THADDEUS J.; MARTIN, SCOTT ANDREW; GUO, LEI
To: WELCH ALLYN, INC.
Reel/Frame 070398/0077 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 9, 2022
From: COON, KENNETH V.; DELUCIA, PAUL; BABSON, DAVID M.; WEITZEL, RICHARD H.
To: WELCH ALLYN, INC.
Reel/Frame 061704/0144 →
RELEASE OF SECURITY INTEREST AT REEL/FRAME 050260/0644 Recorded Dec 14, 2021
From: JPMORGAN CHASE BANK, N.A.
To: BREATHE TECHNOLOGIES, INC.; HILL-ROM SERVICES, INC.; ALLEN MEDICAL SYSTEMS, INC.; WELCH ALLYN, INC.; HILL-ROM, INC.; VOALTE, INC.; BARDY DIAGNOSTICS, INC.; HILL-ROM HOLDINGS, INC.
Reel/Frame 058517/0001 →
Continuity (5)
Continuation 16248482 · Jan 15, 2019
Continuation 29676213 · Jan 9, 2019
Continuation 29676212 · Jan 9, 2019
Provisional Application 62617929 · Jan 16, 2018
Related Publication 20220007927A1 · Jan 13, 2022
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