Various Catheter Devices for Myocardial Injections or Other Uses
First Claim
1. A catheter device comprising:
- a proboscis shaft having a lumen and an exit opening at the distal end of the proboscis shaft;
a tissue surface engagement structure positioned at the distal end of the proboscis shaft, wherein the tissue surface engagement structure has a first configuration and a second configuration, and wherein the transverse profile of the tissue surface engagement structure is larger in the second configuration than in the first configuration; and
a proboscis disposed within the lumen of the proboscis shaft.
0 Assignments
0 Petitions
Accused Products
Abstract
A catheter device comprising a proboscis shaft and a proboscis disposed within the proboscis shaft. In certain embodiments, the catheter device further comprises an elongate tubular member, wherein the proboscis shaft is disposed within the elongate tubular member. In certain embodiments, the catheter device comprises a tissue surface engagement structure, which has a first configuration and a second configuration. In the second configuration, the tissue surface engagement structure presents a larger transverse profile in comparison to the first configuration. The tissue surface engagement structure may have any of various designs, including an expandable assembly and a hinged assembly. In certain embodiments, a deformable cushion is positioned at the distal end of the proboscis shaft. The deformable cushion comprises a pocket that is filled with a reshapeable material. In certain embodiments, the proboscis shaft comprises a longitudinally compressible portion.
-
Citations
55 Claims
-
1. A catheter device comprising:
-
a proboscis shaft having a lumen and an exit opening at the distal end of the proboscis shaft; a tissue surface engagement structure positioned at the distal end of the proboscis shaft, wherein the tissue surface engagement structure has a first configuration and a second configuration, and wherein the transverse profile of the tissue surface engagement structure is larger in the second configuration than in the first configuration; and a proboscis disposed within the lumen of the proboscis shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A method for delivering a therapeutic or diagnostic agent into myocardium, comprising:
-
positioning the distal end of a catheter device within an internal chamber of the heart, wherein the catheter device comprises; (a) a proboscis shaft having a lumen and an exit opening at the distal end of the proboscis shaft; (b) a tissue surface engagement structure positioned at the distal end of the proboscis shaft, wherein the tissue surface engagement structure has a first configuration and a second configuration, and wherein the transverse profile of the tissue surface engagement structure is larger in the second configuration than in the first configuration; and (c) a proboscis disposed within the lumen of the proboscis shaft;
switching the tissue surface engagement structure from the first configuration to the second configuration;penetrating the myocardium with the proboscis; and injecting a therapeutic or diagnostic agent into the myocardium through the proboscis. - View Dependent Claims (20, 21, 22, 23, 24, 25)
-
-
26. A catheter device comprising:
-
a proboscis shaft having a lumen and an exit opening at the distal end of the proboscis shaft; a deformable cushion positioned at the distal end of the proboscis shaft, wherein the cushion has a pocket filled with reshapeable material, and wherein the cushion has a contact surface for engaging a target site; and a proboscis disposed within the lumen of the proboscis shaft. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33)
-
-
34. A method of delivering a therapeutic or diagnostic agent into myocardium, comprising:
-
positioning the distal end of a catheter device within an internal chamber of the heart, wherein the catheter device comprises; (a) a proboscis shaft having a lumen and an exit opening at the distal end of the proboscis shaft; (b) a deformable cushion positioned at the distal end of the proboscis shaft, wherein the cushion has a pocket filled with a reshapeable material; and (c) a proboscis disposed within the lumen of the proboscis shaft engaged the cushion with the myocardial wall to create a contact surface between the cushion and the myocardial wall; penetrating the myocardium with the proboscis; compressing the cushion such that the area of the contact surface increases; and injecting a therapeutic or diagnostic agent into the myocardium through the proboscis. - View Dependent Claims (35, 36, 37, 38, 39, 40)
-
-
41. A catheter device comprising:
-
a proboscis shaft having a longitudinally compressible portion, a lumen, and an exit opening at the distal end of the proboscis shaft; and a proboscis disposed within the lumen of the proboscis shaft. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48)
-
-
49. A method for delivering a therapeutic or diagnostic agent into myocardium, comprising:
-
positioning the distal end of a catheter device within an internal chamber of the heart, wherein the catheter device comprises; (a) a proboscis shaft having a longitudinally compressible portion, a lumen, and an exit opening at the distal end of the proboscis shaft; and (b) a proboscis disposed within the lumen of the proboscis shaft. engaging the proboscis shaft with the myocardial wall; penetrating the myocardium with the proboscis; and injecting a therapeutic or diagnostic agent into the myocardium through the proboscis. - View Dependent Claims (50, 51, 52, 53, 54, 55)
-
Specification