Transseptal cannula, tip, delivery system, and method
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61N-001/362
A61N-001/00
A61M-005/00
A61F-002/00
출원번호
US-0256911
(2008-10-23)
등록번호
US-8343029
(2013-01-01)
발명자
/ 주소
Farnan, Robert C.
Olson, Scott A.
Jung, Elizabeth
Dusbabek, Andrew J.
Hudgins, Robert G.
출원인 / 주소
Circulite, Inc.
대리인 / 주소
Wood, Herron & Evans, L.L.P.
인용정보
피인용 횟수 :
8인용 특허 :
65
초록▼
A transseptal cannula assembly for directing blood from the heart of a patient and a minimally invasive method of implanting the same. The transseptal cannula assembly includes a flexible cannula body having proximal and distal portions with a lumen therebetween, a tip coupled to the distal portion
A transseptal cannula assembly for directing blood from the heart of a patient and a minimally invasive method of implanting the same. The transseptal cannula assembly includes a flexible cannula body having proximal and distal portions with a lumen therebetween, a tip coupled to the distal portion of the flexible cannula body, and first and second anchors coupled to the tip. The anchors can be configured to be deployed from a contracted state to an expanded state and are configured to engage opposite sides of the heart tissue when in the expanded state. The anchors resist movement of the cannula assembly along a lengthwise central axis of the flexible cannula body.
대표청구항▼
1. A cannula assembly for directing blood from a heart of a patient, comprising: a flexible cannula body including a proximal portion and a distal portion and a lumen therebetween;a unitary rigid tip coupled to the distal portion of the flexible cannula body; anda first anchor coupled with the unita
1. A cannula assembly for directing blood from a heart of a patient, comprising: a flexible cannula body including a proximal portion and a distal portion and a lumen therebetween;a unitary rigid tip coupled to the distal portion of the flexible cannula body; anda first anchor coupled with the unitary rigid tip and comprising a plurality of struts extending generally transverse to the lengthwise central axis of the flexible body, the first anchor configured to be deployed from a contracted state to an expanded state, wherein the first anchor is configured to engage at least one side of heart tissue in the expanded state and is operable to resist movement of the cannula assembly in a proximal direction along a lengthwise central axis of the flexible cannula body; anda second anchor coupled with the unitary rigid tip and located proximate to and spaced away from the first anchor, the second anchor operable to prevent movement of the cannula assembly in a distal direction. 2. The cannula assembly of claim 1, wherein the struts are formed from a superelastic material and are folded to a position generally parallel with the lengthwise central axis when in the contracted state and extend to a position generally transverse to the lengthwise central axis when in the expanded state. 3. The cannula assembly of claim 2, wherein the first anchor further includes a porous polymeric structure coupled with the struts and facilitating tissue ingrowth for securing the first anchor to the heart tissue. 4. The cannula assembly of claim 1, wherein the second anchor further comprises a plurality of struts extending generally transverse to the lengthwise central axis of the flexible cannula body. 5. The cannula assembly of claim 4, wherein the struts of the second anchor are formed from a superelastic material and are folded to a position generally parallel with the lengthwise central axis when in the contracted state and extend to a position generally transverse to the lengthwise central axis when in the expanded state. 6. The cannula assembly of claim 5, wherein the second anchor further includes a porous polymeric structure coupled with the struts and facilitating tissue ingrowth for securing the second anchor to the heart tissue. 7. The cannula assembly of claim 1, further comprising: a hemostasis cuff operable to create a seal between the flexible cannula body and a portion of the body of the patient. 8. A delivery system comprising: a cannula assembly comprising: a flexible cannula body including a proximal portion and a distal portion and a lumen therebetween;a unitary rigid tip coupled to the distal portion of the flexible cannula body;a first anchor coupled with the unitary rigid tip and comprising a plurality of struts extending generally transverse to the lengthwise central axis of the flexible body, the first anchor configured to be deployed from a contracted state to an expanded state, wherein the first anchor is configured to engage at least one side of heart tissue in the expanded state and is operable to resist movement of the cannula assembly in a proximal direction along a lengthwise central axis of the flexible cannula body; anda second anchor coupled with the unitary rigid tip and located proximate to and spaced away from the first anchor, the second anchor operable to prevent movement of the cannula assembly in a distal direction; anda delivery sheath, wherein the delivery sheath is configured to receive the flexible cannula body and move relative thereto for deploying the first and second anchors into the expanded state. 9. The delivery system of claim 8, wherein the cannula assembly and the delivery system are configured to travel to the heart as a unit with the first anchor in the contracted state. 10. The delivery system of claim 8 further comprising a guide-wire, wherein the guide-wire is adapted to be disposed within the cannula assembly and extends both proximally and distally from the cannula assembly. 11. The delivery system of claim 8 further comprising a balloon catheter, wherein the balloon catheter is adapted to expand and engage the delivery sheath to enable the delivery sheath to traverse a septum of the heart. 12. The delivery system of claim 11, wherein the balloon catheter is further adapted to prevent substantial relative movement between the delivery sheath and the cannula assembly. 13. The delivery system of claim 11, wherein the balloon catheter is further adapted to expand and engage only the cannula assembly while the first and second anchors are deployed. 14. The delivery system of claim 13, wherein the balloon catheter includes a lumen having a steerable wire extending therethrough from a distal portion of the balloon catheter to a proximal portion of the balloon catheter and is operable to deflect the distal portion of the balloon catheter. 15. The delivery system of claim 8 further comprising an obturator adapted to enable the delivery sheath to traverse a septum of the heart. 16. The delivery system of claim 8, wherein the delivery sheath includes a proximally located hub. 17. The delivery system of claim 16, wherein the hub is adapted to receive a loading device having a proximal portion and a distal portion and a lumen therebetween and wherein the loading device is adapted to load the cannula assembly into the delivery sheath. 18. The delivery system of claim 17, wherein the delivery sheath includes a hemostasis valve proximal to the hub, the hemostasis valve adapted to control a flow of blood through the proximal portion of the delivery sheath. 19. The delivery system of claim 18, wherein the distal portion of the loading device traverses the hub. 20. A circulatory assist system for assisting the flow of blood through a patient circulatory system, comprising: a cannula assembly for directing blood from the heart of a patient, the cannula assembly comprising a flexible cannula body including a proximal portion and a distal portion and a lumen therebetween, a unitary rigid tip coupled to the distal portion of the flexible cannula body, a first anchor coupled to the unitary rigid tip and comprising a plurality of struts extending generally transverse to the lengthwise central axis of the flexible body, the first anchor configured to be deployed from a contracted state to an expanded state, and a second anchor coupled to the unitary rigid tip and located proximate to and spaced away from the first anchor, the second anchor comprising a plurality of struts extending generally transverse to the lengthwise central axis of the flexible body, the second anchor configured to be deployed from a contracted state to an expanded state;a pump for drawing blood into the cannula assembly and dispensing the blood from the cannula assembly and into the patient circulatory system; anda controller operably associated with the pump. 21. The circulatory assist system of claim 20, wherein the pump is implantable. 22. A delivery system for delivering a cannula assembly having a flexible cannula body, a unitary rigid tip coupled to a distal portion of the flexible cannula body, a first anchor coupled with the unitary rigid tip and configured to be deployed from a contracted state to an expanded state, and a second anchor coupled with the unitary rigid tip and located proximate to and spaced away from the first anchor, the delivery system comprising: a delivery sheath configured to receive the flexible cannula body and move relative thereto to deploy the first and second anchors into the expanded state; anda balloon catheter having a distal balloon portion wherein the distal balloon portion in a first inflated state is operable to maintain a relative position between the delivery sheath and the unitary rigid tip while delivering the cannula assembly, the distal balloon portion in a second inflated state is operable to maintain a position of the cannula assembly while the delivery sheath moves to deploy the first and second anchors. 23. The delivery system of claim 22, wherein the distal balloon portion in a deflated state allows the cannula assembly to move relative to the delivery sheath. 24. A cannula assembly comprising: a flexible cannula body having distal and proximal ends with a lumen extending therebetween, the distal end including an attachment portion;a unitary rigid tip having distal and proximal ends, the proximal end including a receiving portion and removably engaging the attachment portion of the flexible cannula body; andfirst and second anchors coupled to the unitary rigid tip and configured to be deployed from a contracted state to an expanded state, the first and second anchors configured to engage opposite sides of a heart tissue. 25. A cannula assembly for directing blood from a heart of a patient, comprising: a flexible cannula body including a proximal portion and a distal portion and a lumen therebetween extending along a lengthwise central axis;a unitary rigid tip coupled to the distal portion of the flexible cannula body;a first anchor coupled with the unitary rigid tip and configured to be deployed from a contracted state to an expanded state, wherein the first anchor is configured to engage a first side of heart tissue in the expanded state to resist movement of the cannula assembly in a proximal direction along the lengthwise central axis; anda second anchor coupled to the unitary rigid tip and located proximate to and spaced away from the first anchor, wherein the second anchor is configured to be deployed from a contracted state to an expanded state, and the second anchor is configured to engage a second side of the heart tissue opposite to the first side in the expanded state to resist movement of the cannula assembly in a distal direction along the lengthwise central axis.
Guss Stephen B. (30 Jefferson Ave. Morristown NJ 07960) Goldman Mark R. (1 Emerson Place No. 14A Boston MA 02114) Zir Leonard M. (7 Elwin Road Natick MA 01760), Cardiac catheter and method of using same.
Sweezer William P. (Lafayette CA) Jimison James (Palo Alto CA) Coleman Ronald L. (Sunnyvale CA), Catheter system and method for providing cardiopulmonary bypass pump support during heart surgery.
Jarvik Robert ; Alesi Daniel E. ; Klinger John F. ; Geiste Robert J. ; Day Steven R. ; Payea Keith ; Hammerquist Kenneth G. ; Stern Steven J. ; Kaczynski Francis X. ; Howansky Mark ; Cashin Deborah M, Circulatory support system.
Nissenbaum, Michael; Kim, Ducksoo; Levine, Andy H., Devices, systems and methods for creating sutureless on-demand vascular anastomoses and hollow organ communication channels.
Stevens John H. ; Reitz Bruce A. ; Roth Alex T. ; Peters William S. ; Gifford Hanson S., Method and apparatus for thoracoscopic intracardiac procedures.
Stevens, John H.; Reitz, Bruce A.; Roth, Alex T.; Peters, William S.; Gifford, Hanson S., Method and apparatus for thoracoscopic intracardiac procedures.
Mann Alfred E. (Beverly Hills CA) Schulman Joseph H. (Santa Clarita CA), Method for optimally positioning and securing the external unit of a transcutaneous transducer of the skin of a living b.
Patrick M. McCarthy ; Cyril J. Schweich, Jr. ; Todd J. Mortier ; Peter T. Keith ; Michael J. Kallok, Methods and devices for improving cardiac function in hearts.
Fonger James D. (Wayland MA) Jonkman Kenneth R. (Grand Rapids MI) Anderson James H. (Columbia MD) Mitchell Sally E. (Baltimore MD), Percutaneous transseptal left atrial cannulation system.
Stokes Kenneth B. (Brooklyn Park MN) Proctor Keith J. (Lino Lakes MN) Bennett Tommy D. (Shoreview MN) McVenes Rick D. (Ham Lake MN), Universal tined myocardial pacing lead.
Ensminger William D. (2770 Parkridge Dr. Ann Arbor MI 48103) Andrews James C. (3568 River Pines Ann Arbor MI 48103) Knol James A. (1059 Hasper Ann Arbor MI 48103), Vascular catheterization system with catheter anchoring feature.
Botterbusch, Carl N.; Lucquin, Silvere; Drevet, Jean-Baptiste; Guignabert, Adrien; Meneroud, Patrick, Implantable pump system having a coaxial ventricular cannula.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.