The present disclosure relates to surgical instruments and, more particularly, to an ultrasonic surgical instrument configured to treat tissue with ultrasonic energy.
Ultrasonic surgical instruments utilize ultrasonic energy, i.e., ultrasonic vibrations, to treat tissue. More specifically, ultrasonic surgical instruments utilize mechanical vibration energy transmitted at ultrasonic frequencies to coagulate, cauterize, fuse, seal, cut, desiccate, fulgurate, or otherwise treat tissue.
Typically, an ultrasonic surgical instrument is configured to transmit ultrasonic energy produced by a generator and transducer assembly along a waveguide to an end effector that is spaced-apart from the generator and transducer assembly. With respect to cordless ultrasonic instruments, for example, a portable power source, e.g., a battery, and the generator and transducer assembly are mounted on the handheld instrument itself, while the waveguide interconnects the generator and transducer assembly and the end effector. Wired ultrasonic instruments operate in similar fashion except that, rather than having the generator and power source mounted on the handheld instrument itself, the handheld instrument is configured to connect to a standalone power supply and/or generator via a wired connection.
Regardless of the particular type and/or configuration of ultrasonic surgical instrument utilized, it is important to ensure proper engagement between the transducer and waveguide so that the ultrasonic energy is properly transmitted to the end effector for treating tissue therewith.
As used herein, the term “distal” refers to the portion that is being described which is further from a user, while the term “proximal” refers to the portion that is being described which is closer to a user. Further, to the extent consistent any or all of the aspects detailed herein may be used in conjunction with any or all of the other aspects detailed herein.
In accordance with aspects of the present disclosure, an elongated assembly configured to releasably engage an ultrasonic transducer of an ultrasonic surgical instrument is provided including a waveguide, a fixed sleeve and a movable sleeve, a jaw member, a drive assembly, a torque housing, and a rotation knob. The waveguide defines a blade at a distal end, an engagement member at a proximal end, and includes a torque adapter fixedly engaged thereabout towards the proximal end. The fixed and movable sleeves are disposed about the waveguide and each define a proximal end and a distal end. The jaw member is pivotably supported at the distal end of the fixed sleeve and operably coupled to the movable sleeve such that translation of the movable sleeve relative to the fixed sleeve pivots the jaw members relative to the blade between an open position and a clamping position. The drive assembly includes a drive tube longitudinally fixed about the proximal end of the movable sleeve and slidably disposed about the fixed sleeve such that translation of the drive tube pivots the jaw member between the open position and the clamping position. The drive tube slidably receives the torque adapter therethrough. The torque housing is slidably disposed about the drive tube, longitudinally fixed about the proximal end of the fixed sleeve, and fixedly engaged about the torque adapter. The rotation knob is longitudinally fixed about the torque housing and operably coupled to the torque housing such that the torque housing and the rotation knob cooperate to define a torque wrench configured to inhibit application of additional torque to the waveguide above a torque limit.
In aspects of the present disclosure, the torque housing includes at least one cantilever arm extending outwardly therefrom and the rotation knob defines a plurality of spaced-apart channels disposed radially about an annular interior surface thereof. In such aspects, each of the at least one cantilever arms is configured for receipt within one of the plurality of spaced-apart channels to impart rotation to the waveguide in response to rotation of the rotation knob up to the torque limit. Each of the at least one cantilever arms is further configured to cam out of the one of the plurality of spaced-apart channels to decouple the rotation knob from the torque housing to inhibit application of additional torque to the waveguide above the torque limit.
In aspects of the present disclosure, the fixed sleeve defines a proximal collar at the proximal end thereof and the torque housing defines an annular channel configured to receive the proximal collar of the fixed sleeve to longitudinally fix the torque housing about the proximal end of the fixed sleeve. Additionally or alternatively, the movable sleeve may define a proximal collar at the proximal end thereof and the drive tube may be configured to engage the proximal collar of the movable sleeve to longitudinally fix the drive tube about the proximal end of the movable sleeve.
In aspects of the present disclosure, the movable sleeve is coaxially disposed about the fixed sleeve.
In aspects of the present disclosure, the torque housing includes first and second housing parts configured to engage one another via snap-fitting to form the torque housing.
In aspects of the present disclosure, the torque housing defines a receiver block configured to receive the torque adapter to fixedly engage the torque adapter and, thus, the waveguide relative to the torque housing.
In aspects of the present disclosure, the drive assembly further includes a collar fixedly engaged about the drive tube towards a proximal end thereof, a washer fixed engaged about the drive tube towards a distal end thereof, a ferrule slidably disposed about the drive tube between the washer and the collar, and a biasing member disposed about the drive tube between the washer and the ferrule so as to bias the ferrule proximally.
In aspects of the present disclosure, the drive assembly is configured such that urging the ferrule proximally urges the drive tube proximally to pivot the jaw member from the open position to the clamping position to grasp tissue therebetween up to a clamping pressure limit, and such that further proximal urging of the ferrule compresses the biasing member while maintaining the drive tube in position to inhibit application of additional clamping pressure above the clamping pressure limit.
In aspects of the present disclosure, the ferrule and the collar define an annular gap therebetween that is configured to receive a driving portion of a movable handle for urging the ferrule proximally.
In accordance with aspects of the present disclosure, an ultrasonic surgical instrument is provided including a handle assembly and an elongated assembly configured to releasably engage the handle assembly. The handle assembly includes a housing, an ultrasonic transducer coupled to the housing and including a horn having a first engagement member disposed at a free end thereof, and a movable handle pivotably coupled to the housing and including a grasping portion extending from the housing and a driving portion extending into the housing. The elongated assembly may be configured similarly to any or all of the aspects detailed above or otherwise herein.
In aspects of the present disclosure, a generator is engaged with the ultrasonic transducer to define a transducer and generator assembly that is configured to releasably couple to the housing.
In aspects of the present disclosure, a battery assembly is configured to releasably couple to the housing to power the generator for driving the ultrasonic transducer.
In aspects of the present disclosure, with the elongated assembly engaged with the handle assembly, the proximal end of the waveguide, at least a portion of the drive assembly, and at least a portion of the torque housing extend into the housing, while the rotation knob is disposed distally adjacent the housing.
In aspects of the present disclosure, with the elongated assembly engaged with the handle assembly, the driving portion of the movable handle is engaged within the drive assembly such that actuation of the movable handle urges the ferrule proximally to thereby urge the drive tube proximally to pivot the jaw member from the open position to the clamping position to grasp tissue therebetween up to a clamping pressure limit, and such that further actuation of the movable handle urges the ferrule further proximally to compress the biasing member while maintaining the drive tube in position to inhibit application of additional clamping pressure above the clamping pressure limit.
In aspects of the present disclosure, with the elongated assembly engaged with the handle assembly, rotation of the rotation knob rotates the elongated assembly and the ultrasonic transducer relative to the housing.
The above and other aspects and features of the present disclosure will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings wherein like reference numerals identify similar or identical elements and:
Referring generally to
A clamp trigger 130 extends from housing 110 of handle assembly 100 adjacent fixed handle portion 114 of housing 110. Clamp trigger 130 includes a bifurcated drive portion 132 extending into body portion 112 of housing 110 and is selectively movable relative to housing 110 to actuate ultrasonic surgical instrument 10, as detailed below.
TAG 300 and battery assembly 400, as noted above, are each removable from handle assembly 100 to facilitate disposal of handle assembly 100 after a single use or to enable sterilization of handle assembly 100 for subsequent use. TAG 300 may be configured to withstand sterilization such that TAG 300 may be sterilized for repeated use. Battery assembly 400, on the other hand, is configured to be aseptically transferred and retained within compartment 116 of fixed handle portion 114 of housing 110 of handle assembly 100 such that battery assembly 400 may be repeatedly used without requiring sterilization thereof.
With additional reference to
Continuing with reference to
Referring to
Referring to
With additional reference to
Proximal connector 236 of waveguide 230 is configured to enable engagement of waveguide 230 with horn 324 of ultrasonic transducer 320 such that mechanical motion produced by ultrasonic transducer 320 is capable of being transmitted along waveguide 230 to blade 234 for treating tissue clamping between blade 234 and jaw member 282 or positioned adjacent to blade 234. To this end, proximal connector 236 includes a threaded male shaft 237 that is configured for threaded engagement within threaded female receiver 326 of horn 324 of ultrasonic transducer 320. As can be appreciated, it is important to ensure that waveguide 230 and ultrasonic transducer 320 are sufficiently engaged with one another and also important to inhibit over-tightening of the engagement between threaded male shaft 237 and threaded female receiver 326. As detailed below, torque housing 260 helps ensure that waveguide 230 and ultrasonic transducer 320 are sufficiently engaged while inhibiting over-tightening.
Referring to
Turning to
Ferrule 254 is slidably disposed about drive tube 252 proximally of raised collar 253a such that raised collar 253a provides a distal stop for ferrule 254. An annular gap 255 defined between the proximal end of ferrule 254 and raised collar 253a of drive tube 252 is configured to receive bifurcated drive portion 132 of clamp trigger 130 (
Biasing member 256 is disposed about drive tube 252 and is positioned proximally of ferrule 254, while washer 258 is engaged about the proximal end of drive tube 252 via proximal keying feature 253c so as to retain biasing member 256 between washer 258 and ferrule 254. Biasing member 256 is retained in a pre-compressed condition and is configured to bias ferrule 254 into abutment with raised collar 253a of drive tube 252.
Referring to
The above-detailed configuration of drive assembly 250 provides a force-limiting feature whereby, during initial actuation of clamp trigger 130, biasing member 256 resists compression such that ferrule 254, biasing member 256, washer 258, drive tube 252, and outer drive sleeve 210 are together moved proximally to pivot jaw member 282 from the open position towards the clamping position. However, upon clamping of tissue between jaw member 282 and blade 234 under sufficient clamping pressure so as to overcome the bias of biasing member 256, further actuation of clamp trigger 130 results in further proximal movement of ferrule 254 and compression of biasing member 256 such that washer 258, drive tube 252, and outer drive sleeve 210 are not moved further proximally. As such, further clamping pressure is inhibited from being applied to tissue grasped between jaw member 282 and blade 232. Biasing member 256 may be configured to limit the clamping pressure to a particular clamping pressure or a clamping pressure within a particular clamping pressure range.
With reference to
Annular channel 266 of torque housing 260 is configured to receive proximal collar 222 of inner support sleeve 220 to thereby longitudinally fix torque housing 260 and inner support sleeve 220 relative to one another. Annular channel 266 and/or proximal collar 222 may further include rotational lock features (not explicitly shown) configured to rotationally fix torque housing 260 and inner support sleeve 220 relative to one another.
Receiver block 267 is complementary to and configured to receive wings 246 of torque adapter 240 to longitudinally and rotationally lock torque housing 260 relative to torque adapter 240 and, thus, waveguide 230.
Cantilever arms 268 are configured, in conjunction with rotation knob 270, to serve as a torque-wrench that ensures appropriate application of torque to sufficiently engage waveguide 230 and ultrasonic transducer 320 to one another during assembly, while inhibiting over-tightening of the engagement between waveguide 230 and ultrasonic transducer 320, as detailed below.
Referring to
Turning to
Next, as illustrated in
With additional reference to
Upon engagement of elongated assembly 200 with handle assembly 100, as detailed above and as illustrated in
Referring generally to
With tissue sufficiently clamped between jaw member 282 and blade 234, activation button 120 may be activated in either the “LOW” power mode or the “HIGH” power mode to initiate the supply power from battery assembly 400 to TAG 300 for driving ultrasonic transducer 320 to, in turn, transmit ultrasonic mechanical motion along waveguide 230 to blade 234 for treating tissue therewith, in either the “LOW” power mode or the “HIGH” power mode.
Once tissue(s) is sufficiently treated, ultrasonic surgical instrument 10 is withdrawn from the surgical site. Thereafter, elongated assembly 200 is disengaged from handle assembly 100 by grasping rotation knob 328 of ultrasonic transducer 320 and rotating rotation knob 270 of elongated assembly 200 is the second, opposite, disengagement direction, to disengage proximal connector 236 of waveguide 230 from horn 324 of ultrasonic transducer 320. Once disengaged, elongated assembly 200 is removed from handle assembly 100 and discarded or sterilized for subsequent use.
With respect to handle assembly 100, TAG 300 is disengaged and removed therefrom for sterilization, and battery assembly 400 is removed and stored or placed on a charger (not shown) in preparation for subsequent use. Handle assembly 100 may then be discarded or sterilized for subsequent use.
While several embodiments of the disclosure have been shown in the drawings, it is not intended that the disclosure be limited thereto, as it is intended that the disclosure be as broad in scope as the art will allow and that the specification be read likewise. Therefore, the above description should not be construed as limiting, but merely as exemplifications of particular embodiments. Those skilled in the art will envision other modifications within the scope and spirit of the claims appended hereto.
The present application is a continuation of U.S. patent application Ser. No. 15/496,241, filed on Apr. 25, 2017, which claims the benefit of and priority to U.S. Provisional Patent Application No. 62/332,028, filed on May 5, 2016, the entire contents of each of which are incorporated herein by reference.
Number | Name | Date | Kind |
---|---|---|---|
1813902 | Bovie | Jul 1931 | A |
2235274 | Trehern | Mar 1941 | A |
2874470 | Richards | Feb 1959 | A |
2990616 | Balamuth | Jul 1961 | A |
3432691 | Shoh | Mar 1969 | A |
3489930 | Shoh | Jan 1970 | A |
3526792 | Shoh | Sep 1970 | A |
3629726 | Popescu | Dec 1971 | A |
3668486 | Silver | Jun 1972 | A |
3809977 | Balamuth et al. | May 1974 | A |
3875945 | Friedman | Apr 1975 | A |
3924335 | Balamuth et al. | Dec 1975 | A |
4012647 | Balamuth et al. | Mar 1977 | A |
4193818 | Young et al. | Mar 1980 | A |
4227110 | Douglas et al. | Oct 1980 | A |
4300083 | Heiges | Nov 1981 | A |
4302728 | Nakamura | Nov 1981 | A |
4370302 | Suzuoka et al. | Jan 1983 | A |
4641053 | Takeda | Feb 1987 | A |
5113116 | Wilson | May 1992 | A |
5224680 | Greenstein et al. | Jul 1993 | A |
5264925 | Shipp et al. | Nov 1993 | A |
5275166 | Vaitekunas et al. | Jan 1994 | A |
5374813 | Shipp | Dec 1994 | A |
5394187 | Shipp | Feb 1995 | A |
5408268 | Shipp | Apr 1995 | A |
5451220 | Ciervo | Sep 1995 | A |
5490860 | Middle et al. | Feb 1996 | A |
5565520 | Fock et al. | Oct 1996 | A |
5582617 | Klieman et al. | Dec 1996 | A |
5593414 | Shipp et al. | Jan 1997 | A |
5685311 | Hara | Nov 1997 | A |
5717306 | Shipp | Feb 1998 | A |
5728130 | Ishikawa et al. | Mar 1998 | A |
5776155 | Beaupre et al. | Jul 1998 | A |
5792138 | Shipp | Aug 1998 | A |
5796056 | Bredow et al. | Aug 1998 | A |
5810859 | DiMatteo et al. | Sep 1998 | A |
5858018 | Shipp et al. | Jan 1999 | A |
5873873 | Smith et al. | Feb 1999 | A |
5897569 | Kellogg et al. | Apr 1999 | A |
5910152 | Bays | Jun 1999 | A |
5938633 | Beaupre | Aug 1999 | A |
5944737 | Tsonton et al. | Aug 1999 | A |
5947984 | Whipple | Sep 1999 | A |
5954736 | Bishop et al. | Sep 1999 | A |
5993465 | Shipp et al. | Nov 1999 | A |
5994855 | Lundell et al. | Nov 1999 | A |
6031526 | Shipp | Feb 2000 | A |
6036667 | Manna et al. | Mar 2000 | A |
6068647 | Witt et al. | May 2000 | A |
6095981 | McGahan | Aug 2000 | A |
6162194 | Shipp | Dec 2000 | A |
6183426 | Akisada et al. | Feb 2001 | B1 |
6220098 | Johnson et al. | Apr 2001 | B1 |
6254623 | Haibel, Jr. et al. | Jul 2001 | B1 |
6257241 | Wampler | Jul 2001 | B1 |
6278218 | Madan et al. | Aug 2001 | B1 |
6280407 | Manna et al. | Aug 2001 | B1 |
6283981 | Beaupre | Sep 2001 | B1 |
6284185 | Tokuda et al. | Sep 2001 | B1 |
6287344 | Wampler et al. | Sep 2001 | B1 |
6290575 | Shipp | Sep 2001 | B1 |
6306157 | Shchervinsky | Oct 2001 | B1 |
6309400 | Beaupre | Oct 2001 | B2 |
6325811 | Messerly | Dec 2001 | B1 |
6328751 | Beaupre | Dec 2001 | B1 |
6350269 | Shipp et al. | Feb 2002 | B1 |
6352532 | Kramer et al. | Mar 2002 | B1 |
6416486 | Wampler | Jul 2002 | B1 |
6423082 | Houser et al. | Jul 2002 | B1 |
6432118 | Messerly | Aug 2002 | B1 |
6443968 | Holthaus et al. | Sep 2002 | B1 |
6449006 | Shipp | Sep 2002 | B1 |
6454781 | Witt et al. | Sep 2002 | B1 |
6454782 | Schwemberger | Sep 2002 | B1 |
6458142 | Faller et al. | Oct 2002 | B1 |
6480796 | Wiener | Nov 2002 | B2 |
6482220 | Mueller | Nov 2002 | B1 |
6491708 | Madan et al. | Dec 2002 | B2 |
6500188 | Harper et al. | Dec 2002 | B2 |
6514267 | Jewett | Feb 2003 | B2 |
6537291 | Friedman et al. | Mar 2003 | B2 |
6561983 | Cronin et al. | May 2003 | B2 |
6565520 | Young | May 2003 | B1 |
6588277 | Giordano et al. | Jul 2003 | B2 |
6589200 | Schwemberger et al. | Jul 2003 | B1 |
6607540 | Shipp | Aug 2003 | B1 |
6623500 | Cook et al. | Sep 2003 | B1 |
6626926 | Friedman et al. | Sep 2003 | B2 |
6633234 | Wiener et al. | Oct 2003 | B2 |
6652539 | Shipp et al. | Nov 2003 | B2 |
6652545 | Shipp et al. | Nov 2003 | B2 |
6660017 | Beaupre | Dec 2003 | B2 |
6662127 | Wiener et al. | Dec 2003 | B2 |
6666875 | Sakurai et al. | Dec 2003 | B1 |
6678621 | Wiener et al. | Jan 2004 | B2 |
6679899 | Wiener et al. | Jan 2004 | B2 |
6719776 | Baxter et al. | Apr 2004 | B2 |
6752815 | Beaupre | Jun 2004 | B2 |
6773444 | Messerly | Aug 2004 | B2 |
6869439 | White et al. | Mar 2005 | B2 |
6908472 | Wiener et al. | Jun 2005 | B2 |
6915623 | Dey et al. | Jul 2005 | B2 |
6945981 | Donofrio et al. | Sep 2005 | B2 |
6976969 | Messerly | Dec 2005 | B2 |
7037306 | Podany et al. | May 2006 | B2 |
7066895 | Podany | Jun 2006 | B2 |
7074218 | Washington et al. | Jul 2006 | B2 |
7108695 | Witt et al. | Sep 2006 | B2 |
7128720 | Podany | Oct 2006 | B2 |
7135030 | Schwemberger et al. | Nov 2006 | B2 |
7163548 | Stulen et al. | Jan 2007 | B2 |
7179254 | Pendekanti et al. | Feb 2007 | B2 |
7179271 | Friedman et al. | Feb 2007 | B2 |
7207997 | Shipp et al. | Apr 2007 | B2 |
7217128 | Atkin et al. | May 2007 | B2 |
7217893 | Huang et al. | May 2007 | B1 |
7230199 | Chou et al. | Jun 2007 | B2 |
7244262 | Wiener et al. | Jul 2007 | B2 |
7269873 | Brewer et al. | Sep 2007 | B2 |
7273483 | Wiener et al. | Sep 2007 | B2 |
7300446 | Beaupre | Nov 2007 | B2 |
7335997 | Wiener | Feb 2008 | B2 |
7337010 | Howard et al. | Feb 2008 | B2 |
7977587 | Rajagopal et al. | Jul 2011 | B2 |
8435258 | Young et al. | May 2013 | B2 |
8672959 | Witt et al. | Mar 2014 | B2 |
10368898 | Brown | Aug 2019 | B2 |
20010048855 | Lin | Dec 2001 | A1 |
20020002379 | Bishop | Jan 2002 | A1 |
20020077645 | Wiener et al. | Jun 2002 | A1 |
20020091339 | Horzewski et al. | Jul 2002 | A1 |
20030144680 | Kellogg et al. | Jul 2003 | A1 |
20030149424 | Barlev et al. | Aug 2003 | A1 |
20030199794 | Sakurai et al. | Oct 2003 | A1 |
20030212363 | Shipp | Nov 2003 | A1 |
20040097972 | Shipp et al. | May 2004 | A1 |
20040116952 | Sakurai et al. | Jun 2004 | A1 |
20040256487 | Collins et al. | Dec 2004 | A1 |
20050091770 | Mourad et al. | May 2005 | A1 |
20050107658 | Brockway | May 2005 | A1 |
20050113815 | Ritchie et al. | May 2005 | A1 |
20050119677 | Shipp | Jun 2005 | A1 |
20050149063 | Young et al. | Jul 2005 | A1 |
20050203329 | Muto et al. | Sep 2005 | A1 |
20050234338 | Masuda | Oct 2005 | A1 |
20050234484 | Houser et al. | Oct 2005 | A1 |
20060058825 | Ogura et al. | Mar 2006 | A1 |
20060079878 | Houser | Apr 2006 | A1 |
20060079879 | Faller et al. | Apr 2006 | A1 |
20060087286 | Phillips et al. | Apr 2006 | A1 |
20060129168 | Shipp | Jun 2006 | A1 |
20060178579 | Haynes | Aug 2006 | A1 |
20060178667 | Sartor et al. | Aug 2006 | A1 |
20060194567 | Kelly et al. | Aug 2006 | A1 |
20060206100 | Eskridge et al. | Sep 2006 | A1 |
20060217729 | Eskridge et al. | Sep 2006 | A1 |
20070011836 | Brewer et al. | Jan 2007 | A1 |
20070149881 | Rabin | Jun 2007 | A1 |
20070166663 | Telles et al. | Jul 2007 | A1 |
20070175960 | Shelton et al. | Aug 2007 | A1 |
20070227866 | Dimig | Oct 2007 | A1 |
20070239028 | Houser et al. | Oct 2007 | A1 |
20070239101 | Kellogg | Oct 2007 | A1 |
20070282333 | Fortson et al. | Dec 2007 | A1 |
20080033248 | Akagi | Feb 2008 | A1 |
20080051693 | Babaev | Feb 2008 | A1 |
20080245841 | Smith et al. | Oct 2008 | A1 |
20090138006 | Bales et al. | May 2009 | A1 |
20090143797 | Smith et al. | Jun 2009 | A1 |
20090143805 | Palmer et al. | Jun 2009 | A1 |
20090223033 | Houser | Sep 2009 | A1 |
20100004669 | Smith et al. | Jan 2010 | A1 |
20100090420 | Nickels, Jr. et al. | Apr 2010 | A1 |
20120078278 | Bales, Jr. et al. | Mar 2012 | A1 |
20130338691 | Young et al. | Dec 2013 | A1 |
20140107684 | Craig | Apr 2014 | A1 |
20150148830 | Stulen et al. | May 2015 | A1 |
20150245850 | Hibner | Sep 2015 | A1 |
Number | Date | Country |
---|---|---|
0705570 | Apr 1996 | EP |
0908148 | Apr 1999 | EP |
1594209 | Nov 2005 | EP |
1707131 | Oct 2006 | EP |
2200145 | Jun 2010 | EP |
2510891 | Oct 2012 | EP |
2000506430 | May 2000 | JP |
2001112768 | Apr 2001 | JP |
2001514541 | Sep 2001 | JP |
2002518067 | Jun 2002 | JP |
2003502102 | Jan 2003 | JP |
2003285008 | Oct 2003 | JP |
2004129871 | Apr 2004 | JP |
2005278932 | Oct 2005 | JP |
2005296411 | Oct 2005 | JP |
2009538710 | Nov 2009 | JP |
2006087885 | Aug 2006 | WO |
2006119376 | Nov 2006 | WO |
2007047380 | Apr 2007 | WO |
2007080723 | Jul 2007 | WO |
Entry |
---|
Extended European Search report issued in corresponding EP application No. 17169447.4 dated Sep. 13, 2017. |
Japanese Office Action issued in corresponding JP application No. 2017-091567 dated Mar. 12, 2018, including English translation, 12 pages. |
European Examination Report issued in corresponding European Application No. 17169447.4 dated Sep. 4, 2019, 6 pages. |
Number | Date | Country | |
---|---|---|---|
20190343550 A1 | Nov 2019 | US |
Number | Date | Country | |
---|---|---|---|
62332028 | May 2016 | US |
Number | Date | Country | |
---|---|---|---|
Parent | 15496241 | Apr 2017 | US |
Child | 16521679 | US |