US 12,251,151 B2
Diathermy tonsillectomy suction dissector apparatus
Hayder Ridha, Dubbo (AU)
Appl. No. 17/268,217
Filed by Hayder Ridha, Dubbo (AU)
PCT Filed Apr. 17, 2019, PCT No. PCT/AU2019/050339
§ 371(c)(1), (2) Date Feb. 12, 2021,
PCT Pub. No. WO2020/033989, PCT Pub. Date Feb. 20, 2020.
Claims priority of application No. 2018902939 (AU), filed on Aug. 13, 2018.
Prior Publication US 2021/0315630 A1, Oct. 14, 2021
Int. Cl. A61B 18/08 (2006.01); A61B 17/26 (2006.01); A61B 17/3211 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/082 (2013.01) [A61B 17/26 (2013.01); A61B 2017/32113 (2013.01); A61B 2018/00178 (2013.01); A61B 2018/00327 (2013.01); A61B 2018/00595 (2013.01); A61B 2018/00601 (2013.01); A61B 2018/00607 (2013.01); A61B 2217/005 (2013.01)] 15 Claims
OG exemplary drawing
 
1. Diathermy tonsillectomy suction dissector apparatus comprising:
a body having a proximal handle, the handle defining an elongate axis,
a distal curved tip having a longitudinal axis extending from a proximal end to a distal end of the tip, a smooth, continuous curve in the distal curved tip being an inferiorly directed curve formed along the longitudinal axis, the inferiorly directed curve deviating the longitudinal axis of the distal curved tip from the elongate axis of the handle, and
a diathermy cutting blade member slidably retained within the body to selectively extend from the tip, the blade extending flexibly along the inferiorly directed curve in the distal curved tip,
wherein the diathermy cutting blade member comprises a flexible metallic blade comprising a proximal electrical connector female socket and a hand operable electrically insulative position locking mechanism attached to the blade, the locking mechanism hand operable via apertures and interlocking therewith to position the diathermy cutting blade member between retracted and extended positions and to lock the diathermy cutting blade member at the extended position,
wherein, when in the extended position, the blade extends from the distal curved tip at an angle relative to the elongate axis of the handle,
wherein the proximal electrical connector female socket is on a proximal end of the flexible metallic blade and wherein the proximal end of the flexible metallic blade extends from a rearward aperture of the handle,
wherein an electrically insulative button conceals the electrical connector female socket therethrough and wherein the insulative button defines a rear face for pressing the cutting blade member towards the extended position,
wherein the locking mechanism comprises a locking lever having a rearward knob and a catch,
wherein the apertures comprise a proximal major aperture and a distal minor aperture,
wherein, when the position locking mechanism is in the retracted position, the rearward knob and the catch locate in the proximal major aperture,
wherein, when the position locking mechanism is in the extended position, the rearward knob locates in the proximal major aperture and the catch locates in the distal minor aperture,
wherein the catch comprises an angled distal face, which slides under a distal edge of the major aperture when the cutting blade member moves towards the extended position;
wherein the catch comprises a proximal edge which locks rearwardly against a proximal edge of the minor aperture when the position locking mechanism is in the extended position,
wherein the lever is operable to be depressed to disengage the rearward knob from the proximal major aperture to remove the diathermy cutting blade member through the rearward aperture.