Method for surgical aortic repair of type A dissections

• US 10,639,178 B1
• Filed: 01/15/2020
• Issued: 05/05/2020
• Est. Priority Date: 01/11/2015
• Status: Active Grant

• Current Assignee: Ascyrus Medical, LLC (Cryolife Incorporated)
• Original Assignee: Ascyrus Medical, LLC (Cryolife Incorporated)
• Inventors: Shahriari, Ali, Leopold, Eric
• Primary Examiner(s): Ho, Tan-Uyen T
• Assistant Examiner(s): Igboko, Chima U
• Application Number:
  US16/742,943
• Publication Number:
  US 20200146855A1
• Time in Patent Office: 111 Days
• CPC Class Codes: A61F 2/06 Blood vessels
• CPC Class Codes: A61F 2/07 Stent-grafts
• CPC Class Codes: A61F 2/90 characterised by a net-like or mesh-like structure
• CPC Class Codes: A61F 2/95 Instruments specially adapted for placement or removal of stents or stent-grafts
• CPC Class Codes: A61F 2/9522 Means for mounting a stent or stent-graft onto or into a placement instrument
• 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 2002/8486 provided on at least one of the ends
• CPC Class Codes: A61F 2002/9505 having retaining means other than an outer sleeve, e.g. male-female connector between stent and instrument
• CPC Class Codes: A61F 2002/9511 the retaining means being filaments or wires
• CPC Class Codes: A61F 2230/0067 conical
• CPC Class Codes: A61F 2240/002 Designing or making customized prostheses
• CPC Class Codes: A61F 2250/0007 for adjusting length
• CPC Class Codes: A61F 2250/001 for adjusting a diameter
• CPC Class Codes: A61F 2250/0039 differing in diameter

Abstract

A method of deploying a stent device into an aorta of a patient includes positioning a distal portion of the stent device at least beyond the left subclavian artery into the descending aorta by axially translating a distal end of a rod of a deployment device into the aorta. The stent device is engaged with the deployment device in an initial configuration about the rod. The axial translation occurs in a direction extending from the aortic arch into the descending aorta. The stent device further includes a stent portion in fluid engagement with the distal portion. The stent portion and the distal portion define an uncovered open cell surface. The stent device further includes a proximal portion in fluid engagement with the stent portion. A collar is defined at a terminal end of the proximal portion.

Claims

1. A method of deploying a stent device into an aorta of a patient, comprising:

positioning a distal portion of the stent device at least beyond the left subclavian artery into the descending aorta by axially translating a distal end of a rod of a deployment device into the aorta,

wherein the stent device is engaged with the deployment device in an initial configuration a bout the rod, wherein the axial translation occurs in a direction extending from the aortic arch into the descending aorta,

wherein the stent device further includes a stent portion in fluid engagement with the distal portion,

wherein the stent portion and the distal portion define an uncovered open cell surface,

wherein the stent device further includes a proximal portion in fluid engagement with the stent portion,

wherein a collar is defined at a terminal end of the proximal portion;

releasing one or more radially constraining members constraining a diameter of the stent portion by pulling on a release wire, wherein the one or more radially constraining members comprise a first slip joint and a second slip joint connected with the release wire;

modifying the length and modifying the diameter of the stent device into a deployed configuration by axially translating the rod within the aorta towards the aortic arch during the releasing the one or more radially constraining members during a deployment sequence,

wherein the open cell surface of the stent portion is positioned to span and engage a portion of the aortic arch to which the brachiocephalic trunk, the left common carotid artery, and the left subclavian artery attach,

wherein the open cell surface of the distal portion extends into and engages a portion of the descending aorta;

removing the rod from the aorta of the patient after the length and the diameter of the stent device has been adjusted,

attaching the collar with a portion of the aortic arch and with a graft member that has replaced the ascending aorta.

2. The method according to claim 1, wherein pulling the release wire is performed by translating a cap engaged with the release wire, wherein the cap is selectively engaged with a first outlet of the deployment device.

3. The method according to claim 1, further comprising releasing additional one or more radially constraining members constraining the diameter of the stent portion by translating another release wire of the deployment device.

4. The method according to claim 3, wherein the one or more radially constraining members radially constrain a first segment of the stent portion and the additional one or more radially constraining members radially constrain a second segment of the stent portion.

5. The method according to claim 1, further comprising manipulating a handle assembly while pulling the release wire for providing the axial translation of the rod.

6. The method according to claim 1, further comprising manipulating the proximal portion of the stent device for further modifying the length and the diameter of the stent device into a deployed configuration.

7. The method according to claim 1, further comprising attaching the distal portion of the stent device to the aorta or to a distal graft section.