Pulmonary arterial compliance enhancement device
| Title: | Pulmonary arterial compliance enhancement device |
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| Patent Number: | 11318,029 |
| Publication Date: | May 03, 2022 |
| Appl. No: | 16/438443 |
| Application Filed: | June 11, 2019 |
| Abstract: | Devices and methods for treating heart disease by increasing the pulmonary vascular compliance and thereby decreasing the right ventricular afterload are disclosed. Devices may include a means for reducing the cross-sectional area of the pulmonary artery during diastole and allowing the cross-sectional area to increase during systole. |
| Inventors: | Sutherland, Michael Warren (Groton, MA, US) |
| Claim: | 1. An implantable device for treating heart failure by increasing a patient's pulmonary artery compliance comprising: two compliant wires each having a proximal end and a distal end, wherein the two compliant wires form an angle in between; a distal joint assembly having a distal threaded tube and a proximal adjustment screw, wherein the proximal adjustment screw is configured to rotationally engage the distal threaded tube such that the proximal adjustment screw moves distally or proximally relative to the distal threaded tube; wherein the distal ends of the two compliant wires join the distal threaded tube through corresponding side holes on the distal threaded tube; and the proximal adjustment screw is configured to push onto the distal ends of the two compliant wires from inside the distal threaded tube and thereby adjusting the angle between the compliant wires; and wherein the proximal ends of the two compliant wires join together forming a proximal joint. |
| Claim: | 2. The device of claim 1 , wherein the device has a first configuration where the two compliant wires form a first predetermined acute angle. |
| Claim: | 3. The device of claim 2 , wherein the two compliant wires are configured to push outward on the walls of the pulmonary artery. |
| Claim: | 4. The device of claim 2 , wherein the device has a second configuration where the two compliant wires form a second angle, and wherein the second angle is greater than the first predetermined acute angle. |
| Claim: | 5. The device of claim 4 , wherein at the second configuration, the two compliant wires are configured to push the walls of the pulmonary artery further radially outward, and thereby change the amount of ovalization of the pulmonary artery. |
| Claim: | 6. The device of claim 1 , wherein as the proximal adjustment screw moves distally relative to the distal threaded tube and pushes onto the distal ends of the compliant wires, the angle in between the two compliant wires increases. |
| Claim: | 7. The device of claim 1 , wherein at least one of the two compliant wires has a 180-degree bend at its proximal end. |
| Claim: | 8. An implantable device for treating heart failure by increasing a patient's pulmonary artery compliance comprising: two compliant wires each having a proximal end and a distal end, wherein the two compliant wires form an angle in between; a distal joint assembly having a distal threaded tube and a proximal adjustment screw, wherein the proximal adjustment screw is configured to rotationally engage the distal threaded tube such that the proximal adjustment screw moves distally or proximally relative to the distal threaded tube; wherein the distal ends of the two compliant wires join the distal threaded tube through corresponding side holes on the distal threaded tube; and the proximal adjustment screw is configured to push onto the distal ends of the two compliant wires from inside the distal threaded tube and thereby adjusting the angle between the compliant wires; and a distal anchor joining the distal joint assembly by a distal anchoring arm. |
| Claim: | 9. The device of claim 8 , wherein the distal anchor is configured to be positioned inside a left or a right branch of the pulmonary artery while the distal joint assembly of the device remains inside a pulmonary artery trunk. |
| Claim: | 10. The device of claim 8 , wherein the distal anchor has a tubular stent structure. |
| Claim: | 11. An implantable device for treating heart failure by increasing a patient's pulmonary artery compliance comprising: two compliant wires each having a proximal end and a distal end, wherein the two compliant wires form an angle in between; a distal joint assembly having a distal threaded tube and a proximal adjustment screw, wherein the proximal adjustment screw is configured to rotationally engage the distal threaded tube such that the proximal adjustment screw moves distally or proximally relative to the distal threaded tube; wherein the distal ends of the two compliant wires join the distal threaded tube through corresponding side holes on the distal threaded tube; and the proximal adjustment screw is configured to push onto the distal ends of the plurality of compliant wires from inside the distal threaded tube and thereby adjusting the angle between the compliant wires; and wherein the proximal ends of the two compliant wires are adapted to curve inwards into the lumen of the pulmonary artery forming an atraumatic tip. |
| Patent References Cited: | 6951571 October 2005 Srivastava 9039725 May 2015 Vollmers et al. 9610391 April 2017 Vollmers et al. 9987153 June 2018 Scandurra et al. 10350397 July 2019 Scandurra et al. 2016/0235526 August 2016 Lashinski 2017/0086974 March 2017 Lashinski 2017/0209253 July 2017 Lashinski 2017/0246436 August 2017 Bak-Boychuk WO2018075552 April 2018 |
| Assistant Examiner: | Vo, Uyen N |
| Primary Examiner: | Holwerda, Kathleen S |
| Attorney, Agent or Firm: | Liu, Helen S Liu Law Office |
| Accession Number: | edspgr.11318029 |
| Database: | USPTO Patent Grants |
| Language: | English |
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