Source: http://www.google.com/patents/US20040171906?dq=FRAIOLI
Timestamp: 2017-09-23 08:13:22
Document Index: 596982686

Matched Legal Cases: ['art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2', 'art 2']

Patent US20040171906 - Expandable cardiac harness for treating congestive heart failure - Google Patents
A cardiac harness for treating congestive heart failure is disclosed. The harness applies elastic, compressive reinforcement on the left ventricle to reduce deleterious wall tension and to resist shape change of the ventricle during the mechanical cardiac cycle. Rather than imposing a dimension beyond...http://www.google.com/patents/US20040171906?utm_source=gb-gplus-sharePatent US20040171906 - Expandable cardiac harness for treating congestive heart failure
Publication number US20040171906 A1
Also published as CA2402504A1, DE60124872D1, DE60124872T2, EP1261294A1, EP1261294B1, US6595912, US6602184, US6612979, US6663558, US6682474, US7077802, US7081086, US7097611, US7124493, US7189202, US7238152, US7276022, US7410461, US20020019580, US20020028981, US20020032364, US20020045798, US20020045800, US20020052538, US20030065248, US20040106848, US20040162463, US20040230091, US20050020874, US20050102016, US20050107661, WO2001067985A1
Publication number 10788791, 788791, US 2004/0171906 A1, US 2004/171906 A1, US 20040171906 A1, US 20040171906A1, US 2004171906 A1, US 2004171906A1, US-A1-20040171906, US-A1-2004171906, US2004/0171906A1, US2004/171906A1, US20040171906 A1, US20040171906A1, US2004171906 A1, US2004171906A1
Patent Citations (74), Referenced by (4), Classifications (33), Legal Events (7)
US 20040171906 A1
[0099]FIG. 9c illustrates a corollary property of the hinges 6, most readily seen when the cardiac harness 4 is applied to a live heart 2: The stretching of the strips 20 of hinges 6 in the transverse (X-axis) direction produces very little or no foreshortening in the longitudinal (Y-axis) direction. In the region of the cardiac base, which is close to the outflow (aortic and pulmonic) valves, it is advantageous to have the rows 20 of hinges 6 expanding and contracting in the circumferential or transverse direction (i.e., along the X axis) while little or no foreshortening in the longitudinal direction (i.e., along the Y axis) occurs. This phenomenon is illustrated in FIG. 9c. Closer to the cardiac apex, it may be more advantageous to have the rows or strips 20 of hinges 6 move apart in the longitudinal direction (i.e., along the Y axis) while there is very little or no foreshortening in the circumferential or transverse direction (i.e., along the X axis). This phenomenon is illustrated in FIG. 9b.
Various designs incorporating decoupled hinges 6 are possible. The hinges 6 can wrap continuously around both ventricles or just around the left ventricle or right ventricle. The harness 4 can have a seam for size adjustment, or it can be of a one size fits-all design. A Nitinol harness can be provided presized to fit the dimensions of a patient's heart. Alternatively, the harness components can be provided in a kit that a surgeon can custom-assemble in the operating room, based on sizing information gained before or at the time of surgery. A kit can consist of modular components that can be assembled quickly. The use of hinge strips 20 that are ring-shaped and of varying diameters and stiffness is one possibility. The surgeon can interlock hinges 6 between adjacent hinge strips 20 in order to couple the strips 20, as illustrated in FIG. 10b. Precise sizing can be facilitated by using a belt buckle or adhesive fastener (e.g., a hook-and-loop fastener, such as Velcro™) type of design, as illustrated in FIGS. 18a and 18 b. FIGS. 18a and 18 b illustrate the harness 4 wrapped around the heart 2, with a leading flap 32 that integrates an adhesive strip, such as Velcro™, for securing the harness 4 onto the heart 2. Such a design is not readily achievable using the knitted sock of previous designs.
[0117]FIGS. 21-25 illustrate the application of the cardiac harness 4 to the heart 2 in various stages. FIG. 21 shows the delivery device, which may be a catheter in one embodiment, comprising a body 46 and a handle 44. The catheter body 46 is advanced through the skin 48 of the patient. The suction 38 moves in proximity to the apex 42 of the heart 2. The harness 4 is inverted (i.e., turned inside out) and is collapsed within the body 46 of the delivery device.
[0121]FIG. 25 illustrates completion of the placement of the harness 4 on the heart 2. After the harness 4 is in position on the heart 2, the handle 44 may be withdrawn from the body 46 of the delivery device, pulling the actuating finger 40 back within the body 46 of the delivery device. The suction cup 38 is also released from the heart 2 and harness 4, and the delivery device is withdrawn from the patient though the skin 48.
US6564094 * Dec 22, 2000 May 13, 2003 Acorn Cardiovascular, Inc. Cardiac disease treatment and device
US6575921 * Feb 9, 2001 Jun 10, 2003 Acorn Cardiovascular, Inc. Device for heart measurement
US6582355 * May 4, 2000 Jun 24, 2003 Acorn Cardiovascular, Inc. Cardiac disease treatment method
US6659082 * Jan 16, 1999 Dec 9, 2003 Daimlerchrysler Ag Method for operating a four-stroke internal combustion engine
International Classification A61N1/362, A61N1/375, A61F2/24, A61N1/05, A61F2/00, A61B17/00
Cooperative Classification A61M2205/8243, A61M1/1046, A61M2205/3303, A61M1/1008, A61M1/1003, A61M1/1086, A61M1/12, A61M2205/33, A61M1/1056, A61M1/1068, Y10T29/49995, A61M2205/3523, A61M1/1048, A61N1/3627, A61F2/2481, A61M2205/0266, A61F2002/0072, A61N1/0587, A61M1/127, A61M1/122, A61M2205/8206, A61F2002/2484