Delivery device and method of delivery

• US 9,320,632 B1
• Filed: 11/06/2015
• Issued: 04/26/2016
• Est. Priority Date: 01/29/2015
• Status: Active Grant

• Current Assignee: Intact Vascular, Inc. (Koninklijke Philips N.V.)
• Original Assignee: Intact Vascular, Inc. (Koninklijke Philips N.V.)
• Inventors: Longo, Michael, Evans, Douglas, Dotsey, Michael
• Primary Examiner(s): Miles, Jonathan W
• Assistant Examiner(s): Igboko, Chima
• Application Number:
  US14/935,121
• Time in Patent Office: 172 Days
• US Class Current: 1/1
• CPC Class Codes: A61B 2090/3966 Radiopaque markers visible in an X-ray image
• CPC Class Codes: A61B 90/00 Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges protective face masks A41D13/11; surgeon's or patient's gowns or dresses A41D13/12; devices for carrying-off, for treatment of, or for carrying-over, body liquids A61M1/00
• CPC Class Codes: A61B 90/39 Markers, e.g. radio-opaque or breast lesions markers
• CPC Class Codes: A61F 2/06 Blood vessels
• CPC Class Codes: A61F 2/915 with bands having a meander structure, adjacent bands being connected to each other
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/9517 handle assemblies therefor
• CPC Class Codes: A61F 2/966 with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
• CPC Class Codes: A61F 2002/826 more than one stent being applied sequentially
• CPC Class Codes: A61F 2002/91575 connected peak to trough
• CPC Class Codes: A61F 2250/0098 radio-opaque, e.g. radio-opaque markers
• CPC Class Codes: A61M 25/0108 using radio-opaque or ultrasound markers
• CPC Class Codes: A61M 25/104 used for angioplasty

Abstract

A delivery device can include a number of different features including, one or more of, but not limited to, the following. Shuttle and trigger retraction of an outer sheath. Arcuate movement of a trigger. An interlock device to prevent actuation of the trigger. An interlock device that can adjust the position of the outer sheath and the inner shaft. A retraction override switch and lock.

Claims

1. A delivery device comprising:

an inner shaft having one or more delivery platforms for deployment of one or more intraluminal devices;

an outer sheath surrounding the inner shaft and configured to cover the one or more delivery platforms pre-deployment and to be withdrawn from one of the one or more delivery platform as part of a deployment of one of the one or more intraluminal devices;

an outer sheath rack comprising a plurality of teeth, the outer sheath rack coupled to the outer sheath;

a handle housing, wherein the inner shaft and the outer sheath rack are at least partially positioned within the handle housing, the handle housing comprising at least one pawl configured to engage with the plurality of teeth on the outer sheath rack to prevent re-sheathing of the outer sheath over the one or more delivery platforms after a deployment;

a retraction override switch coupled to the outer sheath rack and the inner shaft, wherein actuation of the retraction override switch is configured to disengage the at least one pawl from the plurality of teeth on the outer sheath rack to allow re-sheathing of the outer sheath over the one or more delivery platforms after a deployment;

a retraction override lock feature, wherein the retraction override lock is configured to lock the retraction override switch in the actuated position with the at least one pawl disengaged from the outer sheath rack; and

wherein the retraction override lock comprises a spring metal plate and the retraction override switch further comprises a cam engaged with the spring metal plate, actuation of the cam can move the cam to a locked position that prevents further movement.

2. The delivery device of claim 1, wherein the outer sheath rack and outer sheath are coupled to the retraction override switch such that actuation of the retraction override switch causes the outer sheath rack to move out of engagement with the at least one pawl.

3. The delivery device of claim 2, wherein the retraction override switch is configured such that actuation of the retraction override switch causes the retraction override switch to rotate with respect to the handle housing.

4. The delivery device of claim 3, wherein the outer sheath rack is configured such that actuation of the retraction override switch causes the outer sheath rack and the outer sheath to rotate with respect to the handle housing.

5. The delivery device of claim 1, further comprising:

a shuttle having one or more deflection arms configured for selective engagement with the plurality of teeth on the outer sheath rack, wherein movement of the shuttle causes withdraws the outer sheath from covering the one or more delivery platforms.

6. The delivery device of claim 5, wherein the retraction override switch is further configured to disengage the one or more deflection arms from the plurality of teeth on the outer sheath rack to allow re-sheathing of the outer sheath over the one or more delivery platforms after a deployment.

7. The delivery device of claim 6, wherein the shuttle is mechanically linked to a trigger, such that actuation of the trigger causes movement of the shuttle.

8. The delivery device of claim 1, wherein the cam comprises a slot configured to engage the spring metal plate when the cam is in an unlocked position, wherein actuation of the cam causes the slot to disengage from the spring metal plate.

9. The delivery device of claim 8, wherein the cam further comprises a first land and a second land, wherein when the cam is in the locked position the first land contacts a surface on the handle housing and the second land engages the spring metal plate.

10. The delivery device of claim 9, wherein the cam is configured such that actuation of the cam causes the cam to rotate with respect to the handle housing.

11. A delivery device for deploying a medical implant within a vessel, the delivery device comprising:

an outer sheath having a proximal end and a distal end, the outer sheath being adapted to extend over one or more medical implants in a collapsed position on one or more delivery platforms and to be retractable to expose the one or more collapsed medical implants for deployment;

a handle having a handle housing, the handle comprising at least one internal lock configured to engage the outer sheath to prevent re-sheathing of the outer sheath over the one or more delivery platforms;

a retraction override switch coupled to the outer sheath, wherein actuation of the retraction override switch is configured to disengage the at least one internal lock from the outer sheath to allow re-sheathing of the outer sheath over the one or more delivery platforms;

a retraction override lock feature, wherein the retraction override lock is configured to lock the retraction override switch in the actuated position with the at least one internal lock disengaged from the outer sheath; and

wherein the retraction override lock comprises a spring metal plate and the retraction override switch further comprises a cam engaged with the spring metal plate, actuation of the cam can move the cam to a locked position that prevents further movement.

12. The delivery device of claim 11, wherein the outer sheath is coupled to the retraction override switch such that actuation of the retraction override switch causes the outer sheath to move out of engagement with the at least one internal lock.

13. The delivery device of claim 12, wherein the retraction override switch is configured such that actuation of the retraction override switch causes the retraction override switch to rotate with respect to the handle housing.

14. The delivery device of claim 13, wherein the outer sheath is configured such that actuation of the retraction override switch causes the outer sheath to rotate with respect to the handle housing.

15. The delivery device of claim 11, wherein the at least one internal lock comprises a pawl coupled to the handle housing.

16. The delivery device of claim 11, wherein actuation of the cam causes the cam to rotate with respect to the handle housing.