公开(公告)号：US11147441B2

公开(公告)日：2021-10-19

申请号：US16248482

申请日：2019-01-15

Applicant: Welch Allyn, Inc.

Inventor： Kenneth V. Coon ,  Paul DeLucia ,  David M. Babson ,  Richard H. Weitzel

IPC: A61B1/227 ,  A61B3/12 ,  A61B1/00 ,  A61B3/00

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.

公开(公告)号：US20220007927A1

公开(公告)日：2022-01-13

申请号：US17483347

申请日：2021-09-23

Applicant: Welch Allyn, Inc.

Inventor： Raymond A. Lia ,  Steven R. Slawson ,  Robert L. Vivenzio ,  John R. Strom ,  Michael T. McMahon ,  David G. Perkins ,  Kenneth V. Coon ,  Paul DeLucia ,  Richard H. Weitzel ,  Thaddeus J. Wawro ,  Scott Andrew Martin ,  Lei Guo

IPC: A61B1/227 ,  A61B3/12 ,  A61B1/00 ,  A61B3/00

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.

公开(公告)号：US20190216307A1

公开(公告)日：2019-07-18

申请号：US16248482

申请日：2019-01-15

Applicant: Welch Allyn, Inc.

Inventor： Kenneth V. Coon ,  Paul DeLucia ,  David M. Babson ,  Richard H. Weitzel

IPC: A61B1/227 ,  A61B3/12

CPC classification number: A61B1/227 ,  A61B3/12

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.