IP Library › Granted Patent US 12,295,794
Granted Patent B2
US 12,295,794 · App. 18/537,057 · Granted May 13, 2025

Torque-limiting devices, systems, and methods

Inventors: Alexander M. Pfotenhauer (Tustin, CA); Manouchehr Goharlaee (Irvine, CA)
Assignee: Pro-Dex, Inc.
A61B90/03A61B17/1626A61B17/1628A61B17/8875A61B2090/031A61B2090/066
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Quick Facts
Patent No.
US 12,295,794
App. No.
18/537,057
Granted
May 13, 2025
Kind
B2
Abstract

Various torque-limiting surgical driver devices, systems, and methods are disclosed. The surgical driver can include a body, a motor that is configured to rotate a drill bit engaged with the surgical driver, and a processor configured to control operation of the surgical driver. The surgical driver can have torque-limiting functionality, such as by monitoring the amount of torque applied to a drill bit and reducing or stopping rotation of the drill bit when certain torque-limiting criteria are met.

Claims (60)

1. A torque-limiting surgical device comprising:

a body comprising a handle that is configured to be grasped by a user;

a motor positioned in the body;

a drive head configured to be rotated by the motor and to drive a screw or drill bit;

a battery configured to provide electric power to the motor; and

a processor positioned in the body;

wherein, under the control of the processor, the torque-limiting surgical device is configured to:

drive the screw or drill bit into a bone, the bone comprising a first cortical portion, a second cortical portion, and a cancellous portion between said first and second cortical portions;

monitor current or voltage supplied to the motor as the screw or drill bit is being driven into the bone;

determine, from the current or voltage supplied to the motor, torque applied to the screw or drill bit as the screw or drill bit is being driven into the bone;

determine a location of the screw or drill bit with respect to the first cortical portion of the bone at least partly by:

comparing a first difference between a first pair of consecutive torque values to a first threshold;

responsive to determining that said first difference is greater than or equal to said first threshold, comparing a second difference between a second pair of consecutive torque values to said first threshold;

responsive to determining that said second difference is greater than or equal to said first threshold, recording a first event and comparing a third difference between a third pair of consecutive torque values to said first threshold, wherein said first event is indicative of the screw or drill bit drilling in the first cortical portion;

responsive to determining that said third difference is not greater than or equal to said first threshold, comparing a fourth difference between a first pair of non-consecutive torque values to a second threshold that is different than said first threshold; and

responsive to determining that said fourth difference is not greater than or equal to said second threshold and that said first event occurred, record a second event that is indicative of the screw or drill bit drilling through the first cortical portion of the bone and into the cancellous portion of the bone; and

determine a location of the screw or drill bit with respect to the second cortical portion of the bone.

2. The torque-limiting surgical device of claim 1 , wherein said second threshold is greater than said first threshold.

3. The torque-limiting surgical device of claim 1 , wherein one of said first pair of consecutive torque values is the same as one of said second pair of consecutive torque values.

4. The torque-limiting surgical device of claim 1 , wherein one of said third pair of consecutive torque values is the same as one of said first pair of non-consecutive torque values.

5. The torque-limiting surgical device of claim 1 , wherein said first threshold is between about 0.00195 in-oz and about 0.00205 in-oz, and wherein said second threshold is between about 0.00215 in-oz and about 0.00225 in-oz.

6. A torque-limiting surgical device comprising:

a body;

a motor positioned in the body;

a drive head configured to be rotated by the motor and to drive a screw or drill bit; and

a processor positioned in the body;

wherein, under the control of the processor, the torque-limiting surgical device is configured to:

drive the screw or drill bit into a bone, the bone comprising a first cortical portion, a second cortical portion, and a cancellous portion between said first and second cortical portions;

determine torque applied to the screw or drill bit as the screw or drill bit is being driven into the bone;

determine a location of the screw or drill bit with respect to the first cortical portion of the bone at least partly by:

comparing a first difference between a first plurality of torque values to a first threshold;

responsive to determining that said first difference is greater than or equal to said first threshold, comparing a second difference between a second plurality of torque values to said first threshold;

responsive to determining that said second difference is greater than or equal to said first threshold, recording a first event and comparing a third difference between a third plurality of torque values to said first threshold, wherein said first event is indicative of the screw or drill bit drilling in the first cortical portion;

responsive to determining that said third difference is not greater than or equal to said first threshold, comparing a fourth difference between a fourth plurality of torque values to a second threshold that is different than said first threshold; and

responsive to determining that said fourth difference is not greater than or equal to said second threshold and that said first event occurred, record a second event that is indicative of the screw or drill bit drilling through the first cortical portion of the bone and into the cancellous portion of the bone.

7. The torque-limiting surgical device of claim 6 , wherein said second threshold is greater than said first threshold.

8. The torque-limiting surgical device of claim 6 , wherein one of said first plurality of torque values is the same as one of said second plurality of torque values.

9. The torque-limiting surgical device of claim 6 , wherein one of said third plurality of torque values is the same as one of said fourth plurality of torque values.

10. The torque-limiting surgical device of claim 6 , wherein said first threshold is between about 0.00195 in-oz and about 0.00205 in-oz, and wherein said second threshold is between about 0.00215 in-oz and about 0.00225 in-oz.

11. The torque-limiting surgical device of claim 6 , wherein said third plurality of torque values are consecutive, and wherein said fourth plurality of torque values are non-consecutive.

12. The torque-limiting surgical device of claim 6 , wherein said first plurality of torque values are consecutive, and wherein said second plurality of torque values are consecutive.

13. The torque-limiting surgical device of claim 6 , wherein the torque-limiting surgical device is configured to determine a location of the screw or drill bit with respect to the second cortical portion of the bone.

14. A torque-limiting surgical device comprising:

a body;

a motor positioned in the body;

a drive head configured to be rotated by the motor and to drive a screw or drill bit; and

a processor positioned in the body;

wherein, under the control of the processor, the torque-limiting surgical device is configured to:

drive the screw or drill bit into a bone, the bone comprising a first cortical portion, a second cortical portion, and a cancellous portion between said first and second cortical portions;

determine torque applied to the screw or drill bit as the screw or drill bit is being driven into the bone; and

determine a location of the screw or drill bit with respect to the first cortical portion of the bone at least partly by:

comparing a first difference between a first plurality of torque values to a first threshold;

responsive to determining that said first difference is greater than or equal to said first threshold, comparing a second difference between a second plurality of torque values to said first threshold; and

responsive to determining that said first difference is not greater than or equal to said first threshold, comparing a third difference between a third plurality of torque values to a second threshold that is different than said first threshold.

15. The torque-limiting surgical device of claim 14 , wherein said second threshold is greater than said first threshold.

16. The torque-limiting surgical device of claim 14 , wherein one of said first plurality of torque values is the same as one of said second plurality of torque values.

17. The torque-limiting surgical device of claim 14 , wherein one of said first plurality of torque values is the same as one of said third plurality of torque values.

18. The torque-limiting surgical device of claim 14 , wherein said first threshold is between about 0.00195 in-oz and about 0.00205 in-oz, and wherein said second threshold is between about 0.00215 in-oz and about 0.00225 in-oz.

19. The torque-limiting surgical device of claim 14 , wherein said first plurality of torque values are consecutive, and wherein said third plurality of torque values are non-consecutive.

20. The torque-limiting surgical device of claim 14 , wherein the torque-limiting surgical device is further configured to compare a fourth difference between a fourth plurality of torque values to said second threshold responsive to determining that said third difference is not greater than or equal to said second threshold.

Assignments (2)
SECURITY INTEREST Recorded Feb 10, 2026
From: PRO-DEX, INC.
To: UMB BANK, N.A.
Reel/Frame 073749/0445 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 2, 2025
From: PFOTENHAUER, ALEXANDER M.; GOHARLAEE, MANOUCHEHR
To: PRO-DEX, INC.
Reel/Frame 070714/0134 →
Continuity (4)
Continuation 17371760 · Jul 9, 2021
Continuation 16544512 · Aug 19, 2019
Provisional Application 62719874 · Aug 20, 2018
Related Publication 20240197429A1 · Jun 20, 2024
References Cited (400)
US 2414882A · Longfellow · 1947 [cited by applicant]
US 2979089A · Piesker · 1961 [cited by applicant]
US 3120845A · Horner · 1964 [cited by applicant]
US 3578872A · McBurnie · 1971 [cited by applicant]
US 3643501A · Pauley · 1972 [cited by applicant]
US 3692910A · Laguzzi · 1972 [cited by applicant]
US 3926264A · Bardwell et al. · 1975 [cited by applicant]
US 3962910A · Spyridakis et al. · 1976 [cited by applicant]
US 3973434A · Smith · 1976 [cited by applicant]
US 3974685A · Walker · 1976 [cited by applicant]
US 3974883A · Sigmund · 1976 [cited by applicant]
US 3982419A · Boys · 1976 [cited by applicant]
US 4008772A · Boys · 1977 [cited by applicant]
US 4008773A · Wallace et al. · 1977 [cited by applicant]
US 4013895A · Akiyoshi et al. · 1977 [cited by applicant]
US 4023406A · Benz, Jr. · 1977 [cited by applicant]
US 4078589A · Miller · 1978 [cited by applicant]
US 4081037A · Jonsson · 1978 [cited by applicant]
US 4095325A · Hashimoto et al. · 1978 [cited by applicant]
US 4102182A · Brown et al. · 1978 [cited by applicant]
US 4104778A · Vliet · 1978 [cited by applicant]
US 4104780A · Sigmund · 1978 [cited by applicant]
US 4106176A · Rice et al. · 1978 [cited by applicant]
US 4110829A · Boys · 1978 [cited by applicant]
US 4163310A · Sigmund · 1979 [cited by applicant]
US 4179786A · Eshghy · 1979 [cited by applicant]
US 4233721A · Eshghy · 1980 [cited by applicant]
US 4244213A · Marcinkiewicz · 1981 [cited by applicant]
US 4249117A · Leukhardt et al. · 1981 [cited by applicant]
US 4267914A · Saar · 1981 [cited by applicant]
US 4273198A · Doniwa · 1981 [cited by applicant]
US 4292571A · Cuneo · 1981 [cited by applicant]
US 4344216A · Finkelston · 1982 [cited by applicant]
US 4359906A · Cordey · 1982 [cited by applicant]
US 4361945A · Eshghy · 1982 [cited by applicant]
US 4375120A · Sigmund · 1983 [cited by applicant]
US 4375121A · Sigmund · 1983 [cited by applicant]
US 4375122A · Sigmund · 1983 [cited by applicant]
US 4375123A · Ney · 1983 [cited by applicant]
US 4426588A · Weilenmann · 1984 [cited by applicant]
US RE31569E · Eshghy · 1984 [cited by applicant]
US 4450727A · Reinholm et al. · 1984 [cited by applicant]
US 4562389A · Jundt et al. · 1985 [cited by applicant]
US 4684922A · Minogue · 1987 [cited by applicant]
US 4705038A · Sjostrom et al. · 1987 [cited by applicant]
US 4721169A · Nagasawa et al. · 1988 [cited by applicant]
US 4830549A · Neumaier et al. · 1989 [cited by applicant]
US 4878404A · Liao · 1989 [cited by applicant]
US 4894767A · Doniwa · 1990 [cited by applicant]
US 4908926A · Takeshima et al. · 1990 [cited by applicant]
US 4995877A · Ams et al. · 1991 [cited by applicant]
US 5014793A · Germanton · 1991 [cited by applicant]
US 5038084A · Wing · 1991 [cited by applicant]
US 5061885A · Fukuhara · 1991 [cited by applicant]
US 5131130A · Eshghy · 1992 [cited by applicant]
US 5152046A · Abe · 1992 [cited by applicant]
US 5154242A · Soshin et al. · 1992 [cited by applicant]
US 5155421A · Hansson · 1992 [cited by applicant]
US 5160978A · Faville · 1992 [cited by applicant]
US 5207697A · Carusillo et al. · 1993 [cited by applicant]
US 5284217A · Eshghy · 1994 [cited by applicant]
US RE34556E · Sjostrom et al. · 1994 [cited by applicant]
US 5315501A · Whitehouse · 1994 [cited by applicant]
US 5337638A · Coss · 1994 [cited by applicant]
US 5382251A · Hood et al. · 1995 [cited by applicant]
US 5404643A · Rice · 1995 [cited by applicant]
US 5410229A · Sebastian et al. · 1995 [cited by applicant]
US 5430923A · Parent et al. · 1995 [cited by applicant]
US 5440215A · Gilmore · 1995 [cited by applicant]
US 5496330A · Bates et al. · 1996 [cited by applicant]
US 5536267A · Edwards et al. · 1996 [cited by applicant]
US 5538423A · Coss et al. · 1996 [cited by applicant]
US 5539288A · Neijzen et al. · 1996 [cited by applicant]
US 5543695A · Culp et al. · 1996 [cited by applicant]
US 5563482A · Shaw et al. · 1996 [cited by applicant]
US 5584619A · Guzzella · 1996 [cited by applicant]
US 5591919A · Hathaway et al. · 1997 [cited by applicant]
US 5626474A · Kukla et al. · 1997 [cited by applicant]
US 5632759A · Rexroth · 1997 [cited by applicant]
US 5637968A · Kainec et al. · 1997 [cited by applicant]
US 5689159A · Culp et al. · 1997 [cited by applicant]
US 5725533A · Carlsson · 1998 [cited by applicant]
US 5731673A · Gilmore · 1998 [cited by applicant]
US 5754019A · Walz · 1998 [cited by applicant]
US 5810821A · Vandewalle · 1998 [cited by applicant]
US 5831404A · Ishii · 1998 [cited by applicant]
US 5868746A · Sarver et al. · 1999 [cited by applicant]
US 5874816A · Ishii · 1999 [cited by applicant]
US 5890405A · Becker · 1999 [cited by applicant]
US 5898112A · Dawood · 1999 [cited by applicant]
US 5904689A · Jonjic · 1999 [cited by applicant]
US 5927976A · Wu · 1999 [cited by applicant]
US 5980248A · Kusakabe et al. · 1999 [cited by applicant]
US 5993454A · Longo · 1999 [cited by applicant]
US 6022352A · Vandewalle · 2000 [cited by applicant]
US 6084366A · Koselke et al. · 2000 [cited by applicant]
US 6110174A · Nichter · 2000 [cited by applicant]
US 6132435A · Young · 2000 [cited by examiner]
US 6162053A · Hollander · 2000 [cited by applicant]
US 6171312B1 · Beaty · 2001 [cited by applicant]
US 6179841B1 · Jackson · 2001 [cited by applicant]
US 6183442B1 · Athanasiou et al. · 2001 [cited by applicant]
US 6197065B1 · Martin et al. · 2001 [cited by applicant]
US 6211636B1 · Matsubara et al. · 2001 [cited by applicant]
US 6257351B1 · Ark et al. · 2001 [cited by applicant]
US 6280476B1 · Metzger et al. · 2001 [cited by applicant]
US RE37358E · Del Rio et al. · 2001 [cited by applicant]
US 6329778B1 · Culp et al. · 2001 [cited by applicant]
US 6378623B2 · Kawarai · 2002 [cited by applicant]
US 6402757B1 · Moore, III et al. · 2002 [cited by applicant]
US 6471707B1 · Miller et al. · 2002 [cited by applicant]
US 6479958B1 · Thompson et al. · 2002 [cited by applicant]
US 6500208B1 · Metzger et al. · 2002 [cited by applicant]
US 6508841B2 · Martin et al. · 2003 [cited by applicant]
US 6516896B1 · Bookshar et al. · 2003 [cited by applicant]
US 6536536B1 · Gass et al. · 2003 [cited by applicant]
US 6537274B1 · Katz · 2003 [cited by applicant]
US 6547565B1 · Dawood et al. · 2003 [cited by applicant]
US 6569186B1 · Winters et al. · 2003 [cited by applicant]
US 6607385B1 · Sevcik et al. · 2003 [cited by applicant]
US 6616446B1 · Schmid · 2003 [cited by applicant]
US 6629778B1 · Enderle et al. · 2003 [cited by applicant]
US 6656184B1 · White et al. · 2003 [cited by applicant]
US 6665948B1 · Kozin · 2003 [cited by examiner]
US 6676665B2 · Foley et al. · 2004 [cited by applicant]
US 6680595B2 · Ito · 2004 [cited by applicant]
US 6700341B2 · Schaer et al. · 2004 [cited by applicant]
US 6712855B2 · Martin et al. · 2004 [cited by applicant]
US 6723099B1 · Goshert · 2004 [cited by applicant]
US 6780175B1 · Sachdeva et al. · 2004 [cited by applicant]
US 6916340B2 · Metzger et al. · 2005 [cited by applicant]
US 6923813B2 · Phillips et al. · 2005 [cited by applicant]
US 6954682B2 · Makimae et al. · 2005 [cited by applicant]
US 6981976B1 · Schoenefeld · 2006 [cited by applicant]
US 7062979B2 · Day et al. · 2006 [cited by applicant]
US 7091683B1 · Smith et al. · 2006 [cited by applicant]
US 7141073B2 · May et al. · 2006 [cited by applicant]
US 7185562B2 · Raines, Jr. et al. · 2007 [cited by applicant]
US 7234536B2 · Scholl et al. · 2007 [cited by applicant]
US 7235940B2 · Bosch et al. · 2007 [cited by applicant]
US 7250055B1 · Vanderwalle · 2007 [cited by applicant]
US 7255703B2 · Mujwid et al. · 2007 [cited by applicant]
US 7306607B2 · Metzger · 2007 [cited by applicant]
US 7331406B2 · Wottreng, Jr. et al. · 2008 [cited by applicant]
US 7335207B1 · Smith · 2008 [cited by applicant]
US 7338286B2 · Porter et al. · 2008 [cited by applicant]
US 7344376B2 · Beaty et al. · 2008 [cited by applicant]
US 7398700B2 · Makimae et al. · 2008 [cited by applicant]
US 7400106B2 · DeCicco et al. · 2008 [cited by applicant]
US 7431682B2 · Zeiler et al. · 2008 [cited by applicant]
US 7435085B2 · Gugel et al. · 2008 [cited by applicant]
US 7441480B2 · Raines, Jr. et al. · 2008 [cited by applicant]
US 7447565B2 · Cerwin · 2008 [cited by applicant]
US 7481832B1 · Meridew et al. · 2009 [cited by applicant]
US 7484959B2 · Porter et al. · 2009 [cited by applicant]
US 7488323B2 · Bacastow et al. · 2009 [cited by applicant]
US 7507231B2 · Schmieding et al. · 2009 [cited by applicant]
US 7604636B1 · Walters et al. · 2009 [cited by applicant]
US 7708505B2 · Opsitos, Jr. et al. · 2010 [cited by applicant]
US 7713285B1 · Stone et al. · 2010 [cited by applicant]
US 7722678B2 · Brown et al. · 2010 [cited by applicant]
US 7727282B2 · Slone et al. · 2010 [cited by applicant]
US 7740425B2 · Zeiler et al. · 2010 [cited by applicant]
US 7770658B2 · Ito et al. · 2010 [cited by applicant]
US 7823465B2 · Makimae et al. · 2010 [cited by applicant]
US 7839112B2 · Wei · 2010 [cited by applicant]
US 7849766B2 · Sharifi-Mehr et al. · 2010 [cited by applicant]
US 7850452B2 · Suttin et al. · 2010 [cited by applicant]
US 7881806B2 · Horrigan et al. · 2011 [cited by applicant]
US 7887559B2 · Deng et al. · 2011 [cited by applicant]
US 7896923B2 · Blackwell et al. · 2011 [cited by applicant]
US 7936140B2 · Wei · 2011 [cited by applicant]
US 7955334B2 · Steiner et al. · 2011 [cited by applicant]
US 8012215B2 · Metzger et al. · 2011 [cited by applicant]
US 8025106B2 · Schmidt · 2011 [cited by applicant]
US 8028608B2 · Sixto, Jr. et al. · 2011 [cited by applicant]
US 8035487B2 · Malackowski · 2011 [cited by applicant]
US 8038702B2 · Yuan et al. · 2011 [cited by applicant]
US 8048115B2 · Winslow et al. · 2011 [cited by applicant]
US 8057538B2 · Bergin et al. · 2011 [cited by applicant]
US 8074334B2 · Tharp et al. · 2011 [cited by applicant]
US 8083596B1 · Silver et al. · 2011 [cited by applicant]
US 8087935B2 · Beaty et al. · 2012 [cited by applicant]
US 8103358B2 · Sommer et al. · 2012 [cited by applicant]
US 8136431B2 · Wengreen · 2012 [cited by applicant]
US 8147498B2 · Schlueter et al. · 2012 [cited by applicant]
US 8161613B2 · Schuele et al. · 2012 [cited by applicant]
US 8172004B2 · Ho · 2012 [cited by applicant]
US 8182539B2 · Tyber et al. · 2012 [cited by applicant]
US 8241296B2 · Wasielewski · 2012 [cited by applicant]
US 8276487B2 · Wengreen et al. · 2012 [cited by applicant]
US 8286723B2 · Puzio et al. · 2012 [cited by applicant]
US 8322456B2 · Pozgay et al. · 2012 [cited by applicant]
US 8347768B2 · Witte · 2013 [cited by applicant]
US 8372085B2 · Prager et al. · 2013 [cited by applicant]
US 8425521B2 · Cremer et al. · 2013 [cited by applicant]
US 8463421B2 · Brett et al. · 2013 [cited by applicant]
US 8485075B1 · Gauthier et al. · 2013 [cited by applicant]
US 8523845B2 · Ippisch · 2013 [cited by applicant]
US 8529567B2 · Garcia et al. · 2013 [cited by applicant]
US 8603148B2 · Raven, III et al. · 2013 [cited by applicant]
US 8821493B2 · Anderson · 2014 [cited by applicant]
US 8894654B2 · Anderson · 2014 [cited by applicant]
US D719594S · Leugers · 2014 [cited by applicant]
US D722627S · Leugers · 2015 [cited by applicant]
US D727985S · Leugers · 2015 [cited by applicant]
US D732364S · Rinaldis et al. · 2015 [cited by applicant]
US 9204885B2 · McGinley et al. · 2015 [cited by applicant]
US 9265551B2 · Kust et al. · 2016 [cited by applicant]
US 9277926B2 · Xu et al. · 2016 [cited by applicant]
US D759244S · Leugers · 2016 [cited by applicant]
US D759245S · Leugers · 2016 [cited by applicant]
US 9358016B2 · McGinley et al. · 2016 [cited by applicant]
US 9370372B2 · McGinley et al. · 2016 [cited by applicant]
US 9468445B2 · McGinley et al. · 2016 [cited by applicant]
US 9468978B2 · Lo et al. · 2016 [cited by applicant]
US 9492181B2 · McGinley et al. · 2016 [cited by applicant]
US 9554807B2 · McGinley et al. · 2017 [cited by applicant]
US 9554812B2 · Inkpen et al. · 2017 [cited by applicant]
US 9561544B2 · Walsh et al. · 2017 [cited by applicant]
US 9585677B2 · Garcia et al. · 2017 [cited by applicant]
US 9649141B2 · Raven, III et al. · 2017 [cited by applicant]
US D791944S · Palazzolo et al. · 2017 [cited by applicant]
US D793831S · Russell et al. · 2017 [cited by applicant]
US D793832S · Russell et al. · 2017 [cited by applicant]
US D793833S · Russell et al. · 2017 [cited by applicant]
US D794190S · Russell et al. · 2017 [cited by applicant]
US D794196S · Russell et al. · 2017 [cited by applicant]
US 9826984B2 · McGinley et al. · 2017 [cited by applicant]
US 9833244B2 · McGinley et al. · 2017 [cited by applicant]
US 9833270B2 · Zlotolow · 2017 [cited by applicant]
US 9877734B2 · Anderson · 2018 [cited by applicant]
US 10028801B1 · McGinley et al. · 2018 [cited by applicant]
US 10111688B2 · Raven, III et al. · 2018 [cited by applicant]
US 10117689B2 · Zlotolow · 2018 [cited by applicant]
US 10149686B2 · Anderson · 2018 [cited by applicant]
US 10206731B2 · Kust et al. · 2019 [cited by applicant]
US 10383674B2 · Sexson et al. · 2019 [cited by applicant]
US 11071575B2 · Sexson et al. · 2021 [cited by applicant]
US 11090128B2 · Pfotenhauer et al. · 2021 [cited by applicant]
US 11882991B2 · Pfotenhauer et al. · 2024 [cited by applicant]
US 11890144B2 · Sexson et al. · 2024 [cited by applicant]
US 20020146663A1 · Nakanishi et al. · 2002 [cited by applicant]
US 20030093103A1 · Malackowski et al. · 2003 [cited by applicant]
US 20030121685A1 · Yamamoto · 2003 [cited by applicant]
US 20030173096A1 · Setton et al. · 2003 [cited by applicant]
US 20040024311A1 · Quaid, III · 2004 [cited by examiner]
US 20050096684A1 · Farrow et al. · 2005 [cited by applicant]
US 20050116673A1 · Carl · 2005 [cited by examiner]
US 20050131345A1 · Miller · 2005 [cited by applicant]
US 20050131415A1 · Hearn · 2005 [cited by examiner]
US 20050205274A1 · Bogue · 2005 [cited by applicant]
US 20050268750A1 · Bruce · 2005 [cited by examiner]
US 20060117911A1 · Raines, Jr. et al. · 2006 [cited by applicant]
US 20060234617A1 · Francis et al. · 2006 [cited by applicant]
US 20070060933A1 · Sankaran et al. · 2007 [cited by applicant]
US 20070085496A1 · Philipp et al. · 2007 [cited by applicant]
US 20070125201A1 · Raines, Jr. et al. · 2007 [cited by applicant]
US 20070141110A1 · Stone et al. · 2007 [cited by applicant]
US 20070179476A1 · Shelton et al. · 2007 [cited by applicant]
US 20070191915A1 · Strother et al. · 2007 [cited by applicant]
US 20070256527A1 · Phan · 2007 [cited by examiner]
US 20080004646A1 · To et al. · 2008 [cited by applicant]
US 20080016990A1 · Rinner · 2008 [cited by applicant]
US 20080060487A1 · Schell · 2008 [cited by applicant]
US 20080133020A1 · Blackwell et al. · 2008 [cited by applicant]
US 20080153062A1 · Beaty et al. · 2008 [cited by applicant]
US 20080215060A1 · Garcia et al. · 2008 [cited by applicant]
US 20080221564A1 · Rouiller et al. · 2008 [cited by applicant]
US 20080286722A1 · Berckmans, III et al. · 2008 [cited by applicant]
US 20090014192A1 · Ito et al. · 2009 [cited by applicant]
US 20090260485A1 · Hohmann et al. · 2009 [cited by applicant]
US 20100034605A1 · Huckins et al. · 2010 [cited by applicant]
US 20100063508A1 · Borja et al. · 2010 [cited by applicant]
US 20100116519A1 · Gareis · 2010 [cited by applicant]
US 20100204685A1 · Ippisch · 2010 [cited by applicant]
US 20100222812A1 · Stone et al. · 2010 [cited by applicant]
US 20100318093A1 · Ippisch · 2010 [cited by applicant]
US 20110000688A1 · Iwata · 2011 [cited by applicant]
US 20110190907A1 · Porter et al. · 2011 [cited by applicant]
US 20110245833A1 · Anderson · 2011 [cited by applicant]
US 20110288549A1 · Steiner et al. · 2011 [cited by applicant]
US 20110301611A1 · Garcia et al. · 2011 [cited by applicant]
US 20110306008A1 · Suttin et al. · 2011 [cited by applicant]
US 20110306009A1 · Suttin et al. · 2011 [cited by applicant]
US 20110319745A1 · Frey · 2011 [cited by applicant]
US 20120046665A1 · Kim · 2012 [cited by applicant]
US 20120067139A1 · Pernestal · 2012 [cited by applicant]
US 20120116494A1 · Leynov et al. · 2012 [cited by applicant]
US 20120179070A1 · Pommer et al. · 2012 [cited by applicant]
US 20120184958A1 · Knuchel et al. · 2012 [cited by applicant]
US 20120255756A1 · Aoki · 2012 [cited by applicant]
US 20120310247A1 · Hsieh · 2012 [cited by applicant]
US 20130014368A1 · Woods et al. · 2013 [cited by applicant]
US 20130025892A1 · Mashiko et al. · 2013 [cited by applicant]
US 20130098646A1 · Funabashi et al. · 2013 [cited by applicant]
US 20130105189A1 · Murthy et al. · 2013 [cited by applicant]
US 20130116519A1 · Wood · 2013 [cited by applicant]
US 20130118323A1 · Witte · 2013 [cited by applicant]
US 20130165930A1 · Lehmann et al. · 2013 [cited by applicant]
US 20130193891A1 · Wood et al. · 2013 [cited by applicant]
US 20130269961A1 · Lim et al. · 2013 [cited by applicant]
US 20130319190A1 · Nino et al. · 2013 [cited by applicant]
US 20130327552A1 · Lovelass et al. · 2013 [cited by applicant]
US 20130331895A1 · Garcia et al. · 2013 [cited by applicant]
US 20130331994A1 · Ng et al. · 2013 [cited by applicant]
US 20130341058A1 · Roehm · 2013 [cited by applicant]
US 20140048298A1 · Fuchs · 2014 [cited by applicant]
US 20140094807A1 · Weitzman · 2014 [cited by applicant]
US 20140277188A1 · Poulos · 2014 [cited by applicant]
US 20140296845A1 · Miller et al. · 2014 [cited by applicant]
US 20150025538A1 · Kust · 2015 [cited by examiner]
US 20150066036A1 · McGinley et al. · 2015 [cited by applicant]
US 20150182285A1 · Yen et al. · 2015 [cited by applicant]
US 20150201918A1 · Kumar et al. · 2015 [cited by applicant]
US 20160128704A1 · McGinley et al. · 2016 [cited by applicant]
US 20160206328A1 · Lo et al. · 2016 [cited by applicant]
US 20160256213A1 · Kust et al. · 2016 [cited by applicant]
US 20170007289A1 · McGinley et al. · 2017 [cited by applicant]
US 20170128081A1 · McGinley · 2017 [cited by applicant]
US 20170143396A1 · McGinley et al. · 2017 [cited by applicant]
US 20170143440A1 · McGinley et al. · 2017 [cited by applicant]
US 20170181758A1 · Brotman · 2017 [cited by applicant]
US 20170189037A1 · McGinley et al. · 2017 [cited by applicant]
US 20170296250A1 · McGinley et al. · 2017 [cited by applicant]
US 20170348037A1 · Sexson et al. · 2017 [cited by applicant]
US 20180185034A1 · McGinley et al. · 2018 [cited by applicant]
US 20190013830A1 · Hoglund et al. · 2019 [cited by applicant]
US 20190029697A1 · Anderson et al. · 2019 [cited by applicant]
US 20200038085A1 · Sexson et al. · 2020 [cited by applicant]
US 20200054410A1 · Pfotenhauer et al. · 2020 [cited by applicant]
US 20210085342A1 · Ayer · 2021 [cited by examiner]
US 20210378726A1 · Sexson et al. · 2021 [cited by applicant]
AU 2002326257B2 · 2007 [cited by applicant]
CN 101579250A · 2009 [cited by applicant]
CN 101711129A · 2010 [cited by applicant]
CN 102300508A · 2011 [cited by applicant]
CN 202505475U · 2012 [cited by applicant]
CN 102985015A · 2013 [cited by applicant]
CN 202776608U · 2013 [cited by applicant]
CN 105105838A · 2015 [cited by applicant]
CN 105491965A · 2016 [cited by applicant]
CN 105555214A · 2016 [cited by applicant]
DE 2010914A1 · 1971 [cited by applicant]
DE 3238069A1 · 1984 [cited by applicant]
DE 19620782A1 · 1996 [cited by applicant]
DE 19845871 · 1999 [cited by applicant]
EP 0170068A2 · 1986 [cited by applicant]
JP S5246600 · 1977 [cited by applicant]
JP S63150167A · 1988 [cited by applicant]
JP H06210575A · 1994 [cited by applicant]
JP H07124827A · 1995 [cited by applicant]
JP H07256566A · 1995 [cited by applicant]
JP H08281567A · 1996 [cited by applicant]
JP 2959294B2 · 1999 [cited by applicant]
JP 2002283248A · 2002 [cited by applicant]
JP 2005066787A · 2005 [cited by applicant]
JP 2005118911A · 2005 [cited by applicant]
JP 2005523174A · 2005 [cited by applicant]
JP 2009125907A · 2009 [cited by applicant]
JP 2012200807A · 2012 [cited by applicant]
JP 2004291143A · 2016 [cited by applicant]
TW 200518798A · 2005 [cited by applicant]
WO WO03090974A1 · 2003 [cited by applicant]
WO WO03101322A1 · 2003 [cited by applicant]
WO WO2004066850A1 · 2004 [cited by applicant]
WO WO2004110293A1 · 2004 [cited by applicant]
WO WO2008105057A1 · 2008 [cited by applicant]
WO WO2008128523A2 · 2008 [cited by applicant]
WO WO2011133160A1 · 2011 [cited by applicant]
WO WO2012109760A1 · 2012 [cited by applicant]
WO WO2015006296A1 · 2015 [cited by applicant]
WO WO2015009850A1 · 2015 [cited by applicant]
WO WO2017083992A1 · 2017 [cited by applicant]
WO WO2017139674A1 · 2017 [cited by applicant]
WO WO2017214194A1 · 2017 [cited by applicant]
WO WO2018132835A1 · 2018 [cited by applicant]
WO WO2020041211A1 · 2020 [cited by applicant]
Boys, J.T., “Design and Performance of an Automatic Control System for Fastener Tightening,” Applied Mechanics Group, vol. 191, Issue 1, Jun. 1, 1977, in 11 pages. [cited by applicant]
Brockwell, P., Excerpt from Introduction to Time Series and Forecasting, 2d Ed., 2002. [cited by applicant]
Brown, R.G., Excerpt from Smoothing, Forecasting and Prediction of Discrete Time Series, 1963. [cited by applicant]
Gill, P.J., The Yielding of Fastenings During Tightening, the Japan Research Institute, vol. 7, No. 12., 1976. [cited by applicant]
Hatcher, “Evaluation of the iQTM Intelligent System for Rapid Screw Insertion,” undated but believed to be publicly available at least as early as Dec. 2012 (e.g., via http://pharma-gate.net/wp content/uploads/2012/12/1… [cited by applicant]
Hsu, et al., A Modular Mechatronic System for Automatic Bone Drilling, Biomedical Engineering Applications, Basis, & Communications, vol. 13, No. 4, Aug. 2001. [cited by applicant]
Sears/Zemansky/Young, Excerpt from “University Physics,” 1986. [cited by applicant]
Smith, S., Excerpt from “The Scientist and Engineer's Guide to Digital Signal Processing,” 2d Ed. 1999. [cited by applicant]
Wadsworth, H., Excerpt from Handbook of Statistical Methods for Engineers and Scientists, 2d Ed., 1990. [cited by applicant]
https://www.hospimedica.com/surgical-techniques/articles/294743226/novel-torque-limiting-instruments-for-orthopedic-surgeons.html, “Novel Torque Limiting Instruments for Orthopedic Surgeons”, posted Nov. 5, 2012, retrie… [cited by applicant]
https://www.medicaldesignandoutsourcing.com/torque-fast-series-of-disposable-surgical-instruments-launched/, “Torque Fast Series of Disposable Surgical Instruments Launched”, posted Oct. 8, 2013, retrieved Dec. 7, 2020,… [cited by applicant]
https://www.pro-dex.com/turnkey-solutions, Pro-Dex, retrieved May 25, 2020, 2 pages. [cited by applicant]
https://cwisociety.org/wp-content/uploads/2020/04/MatrixRIB_CWIS-Full_Page_Ad-1.pdf, “The Perfect Combination”, retrieved May 25, 2020, 1 page. [cited by applicant]
https://patents.google.com/patent/US6132435A/en, “Torque limiting device for surgical use”, retrieved Feb. 9, 2021, 12 pages. [cited by applicant]
https://www.portescap.com/en/industries-supported/surgical-power-tools/powered-surgical-screwdrivers, “Miniature Motors for Powered Surgical Screwdrivers”, retrieved on Feb. 9, 2021, 3 pages. [cited by applicant]
https://patents.google.com/patent/US20070256527, “Torque limiting device and methods”, retrieved on Feb. 9, 2021, 7 pages. [cited by applicant]
https://www.odtmag.com/contents/view_features/2007-12-05/applying-reliability-concepts-to-torque-limit/, “Applying Reliability Concepts to Torque-Limiting Instruments”, retrieved Feb. 9, 2021, 6 pages. [cited by applicant]
Extend Search Report from corresponding European Patent Application No. 19851881.3, dated Mar. 23, 2022, 7 pages. [cited by applicant]
International Search Report and Written Opinion from corresponding International Application No. PCT/US2017/036216, mailed Oct. 10, 2017, 12 pages. [cited by applicant]
International Search Report and Written Opinion from corresponding International Application No. PCT/US2019/047089, mailed Oct. 16, 2019, 10 pages. [cited by applicant]
International Preliminary Report on Patentability from corresponding International Application No. PCT/US2019/047089, dated Mar. 4, 2021, 8 pages. [cited by applicant]
Office Action from corresponding Chinese Patent Application No. 201980052230.3, dated Mar. 2, 2022, 14 pages. [cited by applicant]
Cited By (1)
US 12,708,474