US 11,793,566 B2
Electrosurgical instrument
Christopher Hancock, Bath (GB); Steven Morris, Chepstow (GB); Patrick Burn, Chepstow (GB); Louis Turner, Chepstow (GB); George Ullrich, Bangor (GB); and David Webb, Bangor (GB)
Assigned to CREO MEDICAL LIMITED, Chepstow (GB)
Filed by CREO MEDICAL LIMITED, Monmouth (GB)
Filed on Jun. 16, 2021, as Appl. No. 17/349,426.
Application 17/349,426 is a division of application No. 15/769,685, granted, now 11,058,483, previously published as PCT/EP2016/074947, filed on Oct. 18, 2016.
Claims priority of application No. 1518468 (GB), filed on Oct. 19, 2015.
Prior Publication US 2021/0307821 A1, Oct. 7, 2021
Int. Cl. A61B 18/14 (2006.01); A61B 18/18 (2006.01); H01P 1/06 (2006.01); A61B 18/12 (2006.01); A61B 90/00 (2016.01); A61B 18/00 (2006.01); H01P 5/08 (2006.01); A61B 17/00 (2006.01)
CPC A61B 18/1492 (2013.01) [A61B 18/1206 (2013.01); A61B 18/1815 (2013.01); H01P 1/065 (2013.01); H01P 1/066 (2013.01); A61B 2017/0034 (2013.01); A61B 2018/00077 (2013.01); A61B 2018/00178 (2013.01); A61B 2018/00202 (2013.01); A61B 2018/00208 (2013.01); A61B 2018/00642 (2013.01); A61B 2018/00755 (2013.01); A61B 2018/00875 (2013.01); A61B 2018/00982 (2013.01); A61B 2018/00994 (2013.01); A61B 2018/1823 (2013.01); A61B 2018/1838 (2013.01); A61B 2018/1861 (2013.01); A61B 2090/035 (2016.02); H01P 5/085 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An electrosurgical instrument for applying radiofrequency energy and/or microwave frequency energy to biological tissue, the instrument comprising:
an instrument tip for applying radiofrequency energy and/or microwave frequency energy to biological tissue;
a coaxial feed cable for conveying radiofrequency energy and/or microwave frequency energy to the instrument tip;
a sheath surrounding the coaxial feed cable; and
a plurality of rolling element bearings or brush bearings positioned between the coaxial feed cable and the sheath for enabling rotation of the coaxial feed cable relative to the sheath.