RANDAL L BERARDI
Engineers in Ephrata, PA
License number
Pennsylvania PE039043E
Category
Engineers
Type
Professional Engineer
Address
Address
Ephrata, PA 17522
Professional information
Counter Pressure Device For Ophthalmic Drug Delivery
US Patent:
7402156, Jul 22, 2008
Filed:
Aug 18, 2005
Appl. No.:
11/207101
Inventors:
Charles C. Kiehlbauch - Cleburne TX, US
James E. Chastain - Fort Worth TX, US
Daniel P. Leavitt - Leesport PA, US
Randal L. Berardi - Ephrata PA, US
James E. Chastain - Fort Worth TX, US
Daniel P. Leavitt - Leesport PA, US
Randal L. Berardi - Ephrata PA, US
Assignee:
Alcon, Inc. - Hunenberg
International Classification:
A61M 35/00, A61B 1/32, A61B 18/18, A61F 5/00
US Classification:
604294, 600236, 606 4, 60620425
Abstract:
A counter pressure device for ophthalmic drug delivery. The device includes a handle and a head coupled to a distal end of the handle. The head comprises a curved, concave surface for contacting the conjunctiva and having a notch for removably receiving a cannula. The device minimizes or prevents drug reflux and facilitates drug placement during ophthalmic drug delivery.
Guarded Surgical Knife Handle
US Patent:
8256330, Sep 4, 2012
Filed:
Nov 17, 2009
Appl. No.:
12/620251
Inventors:
Gregory Allen Auchter - Reading PA, US
Randal Lee Berardi - Ephrata PA, US
Edwin Warren Blatt - Denver PA, US
Jeffrey Kirk Landis - Birdsboro PA, US
David Robert Schiff - Highland Park NJ, US
Seth McCue GaleWyrick - Asheville NC, US
Randal Lee Berardi - Ephrata PA, US
Edwin Warren Blatt - Denver PA, US
Jeffrey Kirk Landis - Birdsboro PA, US
David Robert Schiff - Highland Park NJ, US
Seth McCue GaleWyrick - Asheville NC, US
Assignee:
Alcon Research, Ltd. - Fort Worth TX
International Classification:
A61B 17/32, B26B 3/00
US Classification:
83 13, 30 2, 30151, 30329, 606167
Abstract:
A guarded surgical knife handle includes a lower handle portion, an upper handle postion, and a button. The lower handle portion includes a blade holder, a proximal pair of lateral shelves, and a distal pair of lateral shelves. The upper handle portion includes a guard portion, a proximal post between the proximal pair of shelves with a first widened post portion wider than the lateral spacing between the shelves, and a distal post between the distal pair of shelves with a second widened post portion wider than the lateral spacing between the shelves. The button has a button waist narrower than the second lateral spacing and a widened button portion below the button waist wider than the second lateral spacing. A bias member connected to the button and at least one of the handle portions provides an upward force on the button.
Guarded Surgical Knife Handle
US Patent:
8256331, Sep 4, 2012
Filed:
Nov 17, 2009
Appl. No.:
12/620262
Inventors:
Gregory Allen Auchter - Reading PA, US
Randal Lee Berardi - Ephrata PA, US
David Robert Schiff - Highland Park NJ, US
Seth McCue GaleWyrick - Asheville NC, US
Randal Lee Berardi - Ephrata PA, US
David Robert Schiff - Highland Park NJ, US
Seth McCue GaleWyrick - Asheville NC, US
Assignee:
Alcon Research, Ltd. - Fort Worth TX
International Classification:
A61B 17/32, B26B 3/00
US Classification:
83 13, 30 2, 30151, 30329, 606167
Abstract:
A guarded surgical knife handle includes a handle portion with a blade holder, a chamber within the handle portion, and a slot. The guarded surgical knife handle also includes a guard having an open distal end slidably mounted within the handle portion that can slide longitudinally between an unguarded position and a guarded position. The guard is sized to surround the blade in the guarded position. The guarded surgical knife handle also includes a latch that latches the guard when the guard is slid into the guarded position and a first button that disengages the latch. The guarded surgical knife handle includes a bias member that forces the guard in a proximal direction to an unguarded position when the latch is disengaged along with a second button extending through the slot used to slide the guard in a distal direction into the guarded position.
Micro-Vitreoretinal Trocar Blade
US Patent:
2010010, Apr 22, 2010
Filed:
Oct 22, 2008
Appl. No.:
12/255684
Inventors:
Gregory A. Auchter - Reading PA, US
Jack Robert Auld - Laguna Niguel CA, US
Randal L. Berardi - Ephrata PA, US
Harry E. Faller - Wernersville PA, US
Dyson W. Hickingbotham - Wake Forest NC, US
Christopher L. McCollam - Irvine CA, US
Jason H. Safabash - Aliso Viejo CA, US
Willard L. Sauer - Wernersville PA, US
Jack Robert Auld - Laguna Niguel CA, US
Randal L. Berardi - Ephrata PA, US
Harry E. Faller - Wernersville PA, US
Dyson W. Hickingbotham - Wake Forest NC, US
Christopher L. McCollam - Irvine CA, US
Jason H. Safabash - Aliso Viejo CA, US
Willard L. Sauer - Wernersville PA, US
International Classification:
A61B 17/34
US Classification:
604272, 606185
Abstract:
Embodiments of a micro-vitreoretinal trocar blade may have a top surface and a bottom surface that converge to form cutting edges. Each of the top surface and bottom surface have a large rounded apex to maximize the area of the blade. Each surface also has concave regions that may form the cutting edges. Advancing the MVR trocar blade into tissue causes the tissue to contact the apexes of the top and bottom surfaces. The apexes draw the tissue into contact with the cutting edges. The cutting edges incise the tissue such that the incision is sized to accommodate a trocar cannula. The geometry of the top surface and bottom surface ensure that the features of the blade do not protrude radially outside of the diametral envelope of the shaft.
Guarded Surgical Knife Handle
US Patent:
2012028, Nov 15, 2012
Filed:
Jul 24, 2012
Appl. No.:
13/556673
Inventors:
Gregory Allen Auchter - Reading PA, US
Randal Lee Berardi - Ephrata PA, US
David Robert Schiff - Highland Park NJ, US
Seth McCue GaleWyrick - Asheville NC, US
Randal Lee Berardi - Ephrata PA, US
David Robert Schiff - Highland Park NJ, US
Seth McCue GaleWyrick - Asheville NC, US
International Classification:
A61B 17/3211
US Classification:
30340
Abstract:
A guarded surgical knife handle includes a handle portion with a blade holder, a chamber within the handle portion, and a slot. The guarded surgical knife handle also includes a guard having an open distal end slidably mounted within the handle portion that can slide longitudinally between an unguarded position and a guarded position. The guard is sized to surround the blade in the guarded position. The guarded surgical knife handle also includes a latch that latches the guard when the guard is slid into the guarded position and a first button that disengages the latch. The guarded surgical knife handle includes a bias member that forces the guard in a proximal direction to an unguarded position when the latch is disengaged along with a second button extending through the slot used to slide the guard in a distal direction into the guarded position.