Source: https://patents.google.com/patent/US20050277982A1/en
Timestamp: 2019-06-16 13:51:39
Document Index: 198319440

Matched Legal Cases: ['art 30', 'art 30', 'art 74', 'art 72', 'art 76', 'art 76', 'arts 74']

US20050277982A1 - Articulated center post - Google Patents
US20050277982A1
US20050277982A1 US11/204,303 US20430305A US2005277982A1 US 20050277982 A1 US20050277982 A1 US 20050277982A1 US 20430305 A US20430305 A US 20430305A US 2005277982 A1 US2005277982 A1 US 2005277982A1
US11/204,303
2003-01-22 Priority to US10/348,865 priority Critical patent/US7087072B2/en
2005-08-15 Application filed by Cardia Inc filed Critical Cardia Inc
2005-08-15 Priority to US11/204,303 priority patent/US20050277982A1/en
2005-12-15 Publication of US20050277982A1 publication Critical patent/US20050277982A1/en
This application is a division of application Ser. No. 10/348,865, filed Jan. 22, 2003, entitled “Articulated Center Post”.
This application is related to U.S. patent application entitled Hoop Design for Occlusion Device, Ser. No. 10/349,118, Occlusion Device Having Five or More Arms, Ser. No. 10/348,701, Septal Stabilization Device, Ser. No. 10/349,744, and U.S. patent application entitled Laminated Sheets for use in a Fully Retrievable Occlusion Device, Ser. No. 10/348,864, all filed on Jan. 22, 2003.
Normally, permanently repairing certain cardiac defects in adults and children requires open heart surgery, a risky, expensive, and painful procedure. To avoid the risks and discomfort associated with open heart surgery, modem occlusion devices have been developed that are small, implantable devices capable of being delivered to the heart through a catheter. Rather than surgery, a catheter inserted into a major blood vessel allows an occlusion device to be deployed by moving the device through the catheter. This procedure is performed in a cardiac cathlab and avoids the risks and pain associated with open heart surgery. These modern occlusion devices can repair a wide range of cardiac defects, including patent foramen ovale, patent ductus arteriosus, atrial septal defects, ventricular septal defects, and may occlude other cardiac and non-cardiac apertures.
The present invention allows occlusion devices to more effectively close a physical anomaly. The present invention is an occlusion device having an articulated center section. The articulated center section increases the ability of the occlusion device to more accurately conform to the defect. The center section may consist of a post having left and right parts and a joint which links the left and right parts and provides articulation. The joint includes a ball carried by a portion of the post and a sleeve forming a socket carried by another portion of the post.
The size of the sheets 20, 22 may vary to accommodate various sizes of defects. When measured diagonally, the size of the sheets 20, 22 may range from about 15 millimeters to about 45 millimeters. In some instances, it maybe desirable to form the sheets 20, 22 so that they are not both the same size. For instance, one sheet and its associated fixation device can be made smaller (25 millimeters) than the corresponding sheet and its associated fixation device (30 millimeters). This is particularly useful in situations where the occlusion device 10 is to be placed at a location in the heart which is close to other nearby cardiac structures. Making the sails 20, 22 different sizes may assist in providing optimal occlusion of a defect, without affecting other structures of the heart which may be nearby.
FIGS. 2A through 2D illustrate the method by which the occlusion device 10 is deployed. FIG. 2A is a diagrammatic view of a human heart 30. Visible in FIG. 2A is the right atrium 32, the left atrium 34, the right ventricle 36, the left ventricle 38. The right atrium 32 is separated from the left atrium 34 by a atrial septal wall 40. The right ventricle 36 is separated from the left ventricle 38 by a ventricular septal wall 42. Also visible in FIG. 2A is an atrial septal defect 44 located in the atrial septal wall 40, between the right atrium 32 and left atrium 34 of the heart 30. An atrial septal defect 44 is one example of a cardiac defect that may be occluded using the occlusion device 10.
FIG. 2B is a more detailed view of the septal wall 40 and the defect 44, shown between the right atrium 32 and the left atrium 34. Also shown is the occlusion device 10 of FIG. 1, a catheter 50, and a delivery forceps 52. As viewed in FIG. 2B, the occlusion device 10 comprises a distal side 54, a proximal side 56, and a center section 12. The occlusion device 10 is being inserted into the septal defect 44 from the catheter 50. The device 10 is tethered to the delivery forceps 52. To insert the occlusion device 10, the catheter 50 is positioned proximate the septal defect 44. Next, the delivery forceps 52 is used to push the occlusion device 10 through the catheter 50 so that the distal side 54 of the device 10 unfolds in the left atrium 34. Although the distal side 54 has been deployed, the proximal side 56 is still folded in the catheter 50.
In FIG. 2 B, the center section 12 is articulated but the articulation remains inside the catheter 50 and is therefore immobilized. If the center section 12 of the occlusion device 10 is not articulated (or articulated but immobilized), the device's center section 12 must enter the defect 44 following the same angle of insertion as the catheter 50 or other delivery device. As a result, the insertion angle is limited by the catheter's angle of insertion FIG. 2B.
In this example, a joint 78 provides the articulation. Though shown with a double articulation, the articulated center section 70 is not so limited. The number of joints or hinges 78 maybe varied to accommodate a particular defect or a particular type of defect. For example, one joint or hinge may be best for an atrial septal defect while two or three articulations may be best for a larger defect such as patent foramen ovale or a long defect such as patent ductus arteriosus.
FIG. 8 shows a cross sectional view of an assembled articulated center post. Shown is the left part 74, the right part 72, and the center part 76, which comprises the left sleeve 114, and the right sleeve 112 having a cuff 140. Also shown is a washer 150. Each sleeve has a sleeve opening 152. Also shown are the details of the left and right parts: a knob 24, a second neck 126, first necks 122, 132, cylindrical bodies 124, 134, end balls 120, 130, and holes 80. The sleeves 112, 114 have been welded together.
The resulting assembly forms two ball joints which are able to rotate independently of each other relative to the center part 76. The first necks 122, 132 sit at the sleeve opening 152, 154 after the cylindrical bodies 124, 134 have been pushed through the corresponding sleeve openings 152, 154. The diameters of the necks 122, 132 are smaller than the diameter of the sleeve openings 152, 154 so the necks 122, 132 have ample space to rotate freely in the sleeve openings 152, 154. The end balls 120, 130 are separated by the washer 150 so that they do not come in contact with each other and restrict each other's movement. The washer 150 also prevents the end balls 120, 130 from moving too far into the center of the sleeves 112, 114. If the end balls 120 were allowed to move too far back into the sleeves 112, 114, the left and right parts 74, 72 could also move into the sleeves 112, 114, thereby restricting the movement of the joints 116, 118. Preferably, a hard metal, such as titanium, is used to construct the parts of the center post because use of a hard material prevents binding within the ball joints.
Although the present invention has been described with reference to preferred embodiments, workers skilled in the art will recognize that changes may be made in form and detail without departing from the spirit and scope of the invention. In particular, any of the applicable features disclosed in related applications U.S. patent application entitled Septal Stabilization Device, Ser. No. 10/349,744, U.S. patent application entitled Hoop Design for Occlusion Device, Ser. No. 10/349,118, Occlusion Device Having Five or More Arms, Ser. No. 10/348,701, and U.S. patent application entitled Laminated Sheets for Use in a Fully Retrievable Occlusion Device, Ser. No. 10/348,864, may be of use in the present invention. Each of these applications is hereby incorporated by reference.
1. An occlusion device for the closure of a physical anomaly, the device comprising:
a center post connecting the first and second support structure, the center post including a ball and socket joint.
a jointed center strut including a first strut section having a body, a neck and a ball, and a first sleeve having a socket that forms a ball and socket joint with the ball of the first strut section and an opening through which the neck extends between the ball and the body;
a first plurality of fixation devices extending from the body of the first strut section of the jointed center strut; and
3. The occlusion device of claim 2 wherein the center strut further includes a second strut section having a body, a neck and a ball, and a second sleeve having a socket that forms a ball and socket joint with the second strut section and an opening through which the neck extends between the ball and the body.
4. The occlusion device of claim 3 and further comprising:
a second plurality of fixation devices extending from the body of the second strut section.
5. The occlusion device of claim 4 and further comprising:
a second sheet attached to the second plurality of fixation devices.
a jointed center strut having distal and proximal ends, the jointed center strut having a plurality of ball and socket joints;
a first set of wire support arms extending from the first part distal end of the jointed center strut;
a jointed center piece having a plurality of ball and socket joints;
US11/204,303 2003-01-22 2005-08-15 Articulated center post Abandoned US20050277982A1 (en)
US10/348,865 US7087072B2 (en) 2003-01-22 2003-01-22 Articulated center post
US11/204,303 US20050277982A1 (en) 2003-01-22 2005-08-15 Articulated center post
US10/348,865 Division US7087072B2 (en) 2003-01-22 2003-01-22 Articulated center post
US20050277982A1 true US20050277982A1 (en) 2005-12-15
US10/348,865 Active 2023-08-22 US7087072B2 (en) 2003-01-22 2003-01-22 Articulated center post
US11/204,303 Abandoned US20050277982A1 (en) 2003-01-22 2005-08-15 Articulated center post
US11/328,917 Abandoned US20060116717A1 (en) 2003-01-22 2006-01-06 Articulated center post
WO (1) WO2004066810A2 (en)
CN107126240A (en) * 2017-06-08 2017-09-05 有研医疗器械（北京）有限公司 Left atrial appendage occluder and using method thereof
2003-01-22 US US10/348,865 patent/US7087072B2/en active Active
2004-01-20 WO PCT/US2004/001295 patent/WO2004066810A2/en active Application Filing
2005-08-15 US US11/204,303 patent/US20050277982A1/en not_active Abandoned
2006-01-06 US US11/328,917 patent/US20060116717A1/en not_active Abandoned
US20060116717A1 (en) 2006-06-01
WO2004066810A3 (en) 2005-04-14
US20040143293A1 (en) 2004-07-22
WO2004066810A2 (en) 2004-08-12
US7087072B2 (en) 2006-08-08