US 9,314,269 B2Granted

Hybrid cannula and methods for manufacturing the same

AssigneeHybrid Cannula LP

InventorsJonathan H. Webb, Lyle Theodore Crum, Bradley Thomas Burns

Life of this patent

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Abstract

A new process of manufacturing a hybrid cannula may include creating a first part with at least two components, overmolding at least two components of a second part to a channel in each component of the first part, and fixing the components of the first part together. The second part may include various types of features such as thick/thin dams, squirt membranes, and/or duck bill dams inside the hybrid cannula. Each dam may have any number, shape, orientation, and length of slits/openings. The slits/openings may allow passage of an instrument while the dam(s) may prevent fluid from passing through the hybrid cannula. A third part may optionally be overmolded to at least a portion of the first part, at least a portion of the second part, or both. The third part may provide an extension, a flange, or a combination thereof at a distal end of the hybrid cannula.

Claims14

Dependent claims

A cannula, comprising:

a first part made of a rigid material and having at least two components, each of the at least two components of the first part having a proximal end, a distal end, a channel extending between the proximal end and the distal end, and a head portion at the proximal end;
and
a second part made of a non-rigid material and having at least two components, each of the at least two components of the second part having portions of three or more dams overmolded and permanently fixed to the channel of the each of the at least two components of the first part, the at least two components of the first part overmolded with the at least two components of the second part are assembled and fixed together to form the cannula with the three or more dams in the channel, each of the three or more dams comprising:
an opening configured for allowing passage of an instrument;
and
a partition configured for preventing air or fluid from passing through the cannula.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/949,002Filed 23 Jul 2013 · continuation in part
Priority: 24 Jan 2013
Published: US 2014/0207084 A124 Jul 2014
Granted: 19 Apr 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

A61B 17/3421
Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating: cannulas
A61B 17/3417
Trocars; Puncturing needles: details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
A61B 17/3462
Trocars; Puncturing needles: with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with…
A61M 39/0247
Access sites: transcutaneous or percutaneous access sites to the inside of the body

Family

Application13/749,496Parent of this continuation-in-part · filed 24 Jan 2013
US 2014/0207084 A1Pre-grant publication · published 24 Jul 2014
US 9,149,294 B2Parent of this continuation-in-part
US 2014/0207100 A1Published application
US 9,314,269 B2This patent

From the US filing history. Foreign family members aren’t listed.