Method for treating aortic arch diseases

Patent metadata

Field	Value
Publication number	US-9955971-B2
Application number	US-201514984084-A
Country	US
Kind code	B2
Filing date	Dec 30, 2015
Priority date	Dec 30, 2015
Publication date	May 1, 2018
Grant date	May 1, 2018

Abstract

In a method for treating an aortic arch disease, after an intraoperative stent is expanded in an aorta and at least one arch branch vessel, and before the vessel is exactly anastomosed with an incision, by blocking a thoracic aorta between the incision and an arch branch vessel closest to the incision, the intraoperative stent in the thoracic aorta is also blocked, so that blood is prevented from flowing from the incision, and a proximal orifice of the intraoperative stent, and the low body perfusion may be recovered in advance, thereby reducing the circulatory arrest time of the low body perfusion and reducing the time of ischemia of visceral organs and lower limbs of a patient. Meanwhile, the flow of a cerebral perfusion through the right axillary artery may be recovered to a normal flow in advance, and the time of ischemia of the brain of the patient is reduced.

First claim

The invention claimed is:

1. A method for treating an aortic arch disease, characterized in that it comprises the following steps of:
establishing an extracorporeal circulation, the extracorporeal circulation comprising a low body perfusion and a normal-flow cerebral perfusion;
forming an incision on an ascending aorta, and stopping the low body perfusion at the same time;
delivering a distal section of an intraoperative stent into an aortic arch and at least one arch branch vessel through the incision by an endovascular technique, and radially expanding the distal section of the intraoperative stent;
blocking a thoracic aorta between the incision and the arch branch vessel closest to the incision;
recovering the low body perfusion;
surgically anastomosing a proximal section of the intraoperative stent with the ascending aorta and closing the incision; and
releasing the blocked thoracic aorta.

2. The method for treating an aortic arch disease according to claim 1 , wherein the forming of an incision on an ascending aorta comprises: cutting the ascending aorta along a cross-section of the ascending aorta, or forming a through hole on a wall of the ascending aorta.

3. The method for treating an aortic arch disease according to claim 1 , wherein the endovascular technique comprises: radially compressing the intraoperative stent into a sheath canal and delivering the intraoperative stent into a vessel through the sheath canal.

4. The method for treating an aortic arch disease according to claim 1 , wherein the flow of the cerebral perfusion is reduced while forming the incision.

5. The method for treating an aortic arch disease according to claim 1 , wherein an opening of any arch branch vessel is unexposed by the incision.

6. The method for treating an aortic arch disease according to claim 1 , further comprising the following step of: exhausting air after blocking a thoracic aorta between the incision and the arch branch vessel closest to the incision.

7. The method for treating an aortic arch disease according to claim 1 , wherein the method further comprises: tying by a band or gripping by a pair of forceps the thoracic aorta between the incision and an arch branch vessel closest to the incision to block the thoracic aorta and the intraoperative stent in the thoracic aorta.

8. The method for treating an aortic arch disease according to claim 4 , further comprising the following step of: recovering the flow of the cerebral perfusion to a normal flow after blocking a thoracic aorta between the incision and the arch branch vessel closest to the incision.

9. The method for treating an aortic arch disease according to claim 1 , wherein the surgical anastomosis comprises at least one technique selected from the group consisting of suturing, binding, winding with a thread, gripping and adhesive bonding.

Assignees

• Lifetech Scient Shenzhen Co
• Lifetech Scient Shenzhen Co

Inventors

• Xu Zhiyun
• Zhang Xiangman
• Han Lin
• Zhang Deyuan
• Xiao Benhao

Classifications

• A61F2/07

  Stent-grafts · CPC title

• A61B17/11 Primary

  for performing anastomosis; Buttons for anastomosis · CPC title

• A61F2002/061

  provided with means for allowing access to secondary lumens · CPC title

• A61B2017/12004

  for haemostasis, for prevention of bleeding · CPC title

• A61F2/856

  Single tubular stent with a side portal passage · CPC title