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US 10,499,938 B2Granted
Percutaneous nephrolithotomy device
AssigneeColoplast A/S
InventorsGerard Louis Florent Torchio, Cesare Scoffone, David Rigotto
Life of this patent
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Abstract
The present invention relates to an extraction device (10) for extracting foreign bodies from a patient, comprising a flexible extractor (11), a stiffening device (12) and connection means (13) for connecting the flexible extractor (11) to said stiffening device (12).
Claims10
A percutaneous nephrolithotomy device, the device comprising:
- a handle having a proximal lever part and a distal lever part that is spaced a distance away from the proximal lever part, where the distal lever part includes a pair of spaced apart legs including a first leg spaced a gap distance away from a second leg;
- a transmission mandrin having a proximal end connected to the proximal lever part and a distal end adapted to be connected to a kidney stone extraction tool;
- and
- a stiffener having a tube connected to a retainer, with the tube providing a lumen sized to receive the transmission mandrin and the retainer having a channel sized to receive the transmission mandrin;
- wherein engagement of the retainer into the gap distance between the pair of spaced apart legs attaches the stiffener to the handle;
- wherein the transmission mandrin has a mandrin length and the tube has a tube length, and a length of the channel of the retainer is equal to a difference between the mandrin length and the tube length.
3 more elements
Dependencies are inferred from the claim text.