US 9,788,839 B2Granted

Stable screw-type detachment mechanism

AssigneeCook Medical Technologies LLC

InventorsKarol Lagodzki, Tyler Turk, Trevor Plassman

Life of this patent

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Abstract

An occluding device apparatus includes an embolization coil with a distal end and a proximal end with an opening and an attacher that is threaded through the opening at the proximal end of the embolization coil. The apparatus further comprises a delivery kit for delivery of the embolization coil in a body cavity. The kit comprises a guide catheter for percutaneous introduction of the embolization coil and an inner catheter slidably disposed within the guide catheter during insertion. The inner catheter comprises a proximal end and a distal end. The inner catheter further includes a hub disposed adjacent the proximal end. The kit further comprises a guide wire slidably disposed within the inner catheter. The guide wire provides a path during insertion thereof within a body cavity. The kit further comprises a pushwire to advance the embolization coil through the inner catheter.

Claims16

Dependent claims

A medical device delivery assembly comprising:

a medical device to be deployed, the medical device extending from a medical device proximal end to a medical device distal end, the medical device proximal end comprising a medical device lumen and a medical device outer surface, at least one prong being attached to the medical device outer surface of the medical device proximal end;
a delivery portion extending from a delivery portion proximal end to a delivery portion distal end, the delivery portion comprising a delivery portion lumen and a delivery portion outer surface, the delivery portion lumen being sized so as to fit the medical device proximal end therein, the delivery portion distal end of the delivery portion comprising at least one notch for receiving the at least one prong of the medical device to be deployed such that when the at least one prong is engaged with the at least one notch, the medical device and the delivery portion rotate together bidirectionally;
and
a mandrel extending from a mandrel proximal end to a mandrel distal end, the mandrel being slidably disposed within the delivery portion lumen of the delivery portion, the mandrel distal end of the mandrel fitting within the medical device lumen of the medical device proximal end of the medical device to be deployed.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 14/621,565Filed 13 Feb 2015 · us provisional application
Priority: 14 Feb 2014
Published: US 2015/0230802 A120 Aug 2015
Granted: 17 Oct 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

A61B 17/12109
Characterised by the location of the occluder: in a blood vessel
A61B 17/1214
Characterised by the type of occluding device: coils or wires
A61B 17/12113
In a blood vessel: within an aneurysm
A61B 2017/12095
Details concerning the detachment of the occluding device from the introduction device: threaded connection