Granted Patent B2

US 12,667,426 · App. 17/934,285 · Granted Jun 30, 2026

Inventors: David Gilstrap (South Jordan, UT); Amber Velasco (South Jordan, UT); Gregory R. McArthur (Sandy, UT); Matthew Bainsmith (South Jordan, UT)

Assignee: Cianna Medical, Inc.

A61B34/20A61B10/0233A61B2034/2051

Abstract

Claims (28)

1 . A delivery device to deliver a localization device, comprising:

a handle to be gripped by a user and comprising:

a bore defined by a wall of the handle;

a proximal detent extending through the wall of the handle; and

a distal detent extending through the wall of the handle,

wherein the distal detent is longitudinally spaced from the proximal detent;

a cannula coupled to the handle and comprising a lumen;

a plunger slidingly disposed within the bore of the handle and comprising an outwardly biased engagement member comprising:

a cantilever arm; and

a catch disposed at an end of the cantilever arm, the catch configured to engage with the proximal detent and the distal detent; and

a deployment rod coupled to the plunger and co-axially disposed within the lumen of the cannula.

2 . The delivery device of claim 1 , wherein the delivery device further comprises a resilient member disposed within the handle to apply a proximally-directed force to the plunger.

3 . The delivery device of claim 1 , wherein the delivery device further comprises a spacer selectively couplable to a distal end of the handle to effectively shorten a length of the cannula.

4 . The delivery device of claim 1 , wherein the proximal and distal detents comprise windows through the wall to allow visualization of the biased engagement member when the biased engagement member is engaged with the proximal and distal detents.

5 . The delivery device of claim 1 , wherein the cannula comprises:

a retention tab disposed proximal to a distal end of the cannula to retain the localization device within the lumen of the cannula prior to deployment of the localization device from the delivery device; and

a cannula window disposed proximal to the retention tab to allow visualization of the localization device within the lumen of the cannula prior to deployment of the localization device from the delivery device.

6 . The delivery device of claim 1 , wherein the biased engagement member comprises:

the cantilever arm coupled to an elongate body; and

the catch disposed at a proximal end of the cantilever arm to engage with the proximal and distal detents of the handle,

wherein the catch comprises:

a distal face oriented at an angle to a longitudinal axis of the elongate body to prevent the plunger from being distally displaced; and

a proximal face oriented perpendicular relative to the longitudinal axis of the elongate body to allow the plunger to be displaced from engagement with the proximal detent to engagement with the distal detent.

7 . The delivery device of claim 1 , wherein the delivery device is in a ready-to-deploy state when the biased engagement member is engaged with the proximal detent, and

wherein the delivery device is in a deployed state when the biased engagement member is engaged with the distal detent.

8 . The delivery device of claim 1 , wherein the localization device is deployed from the delivery device in axial alignment with the delivery device.

9 . The delivery device of claim 2 , wherein the proximally-directed force applied to the plunger is configured to cooperate with an outward force applied by the outwardly biased engagement member so as to maintain engagement of the catch with the proximal detent or the distal detent.

10 . The delivery device of claim 1 , further comprising a resilient member configured to apply a proximally-directed force to the plunger such that the catch is prevented from disengaging with the proximal detent or the distal detent.

Assignments (2)

Continuity (2)

References Cited (25)