Self-Expandable Medical Instrument for Treating of Defects in a Patient's Heart
First Claim
1. A self-expandable medical instrument (100) for treating defects in a patient'"'"'s heart, in particular for the transvascular implantation of a prosthetic heart valve (30), wherein the medical instrument (100) can be introduced into the body of a patient in a minimally-invasive procedure using a catheter system (40) and comprises a stent (1) made from a flexible mesh (2) of thin wires or filaments (2′
- ), wherein the stent (1) configured from flexible mesh (2) exhibits a first predefinable shape during the insertion of the medical instrument (100) in the patient'"'"'s body and a second predefinable shape in the implanted state of the medical instrument (100), wherein said medical instrument (100) is in a collapsed state in the first shape of the stent (1) composed of the flexible mesh (2) and in an expanded state in the second shape of the stent (1) composed of the flexible mesh (2), and wherein the stent (1) composed of the flexible mesh (2) in its second predefinable shape and in the expanded state of the medical instrument (100) exhibits the following;
a distal retention area (10) having a laterally-inverted beaded portion (12), which in the implanted state of the medical instrument (100) is engageable in at least one pocket (51) of the patient'"'"'s defective heart valve (50);
a proximal retention area (20); and
a center area (15) positioned between the distal and the proximal retention area (10, 20),wherein the center area (15) of the stent (1) of the expanded medical instrument (100) exhibits a smaller diameter than the proximal and/or distal retention area (10, 20), and wherein the center area (15) is configured to form a positive connection with the vascular wall (52) at the height of the defective heart valve (50) in the implanted state of the medical instrument (100).
3 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to a self-expandable medical instrument (100) for treating defects in a patient'"'"'s heart, in particular for the transvascular implantation of a prosthetic heart valve (30), wherein the medical instrument (100) is introducible into the body of a patient in a minimally-invasive procedure using a catheter system (40) and comprises a stent (1) made of a flexible mesh (2) of thin wires or filaments (2′). In order to realize a positioning of medical instrument (100) in the patient'"'"'s heart which is as precise as possible and to securely anchor same there, it is provided for the stent (1) composed of the flexible mesh (2) to exhibit in the expanded state of the medical instrument (100) a distal retention area (10) with a laterally-inverted beaded portion (12) which is engageable in at least one pocket (51) of the patient'"'"'s defective heart valve (50), a proximal retention area (20), and a center area (15) positioned between the distal and the proximal retention area (10, 20).
407 Citations
17 Claims
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1. A self-expandable medical instrument (100) for treating defects in a patient'"'"'s heart, in particular for the transvascular implantation of a prosthetic heart valve (30), wherein the medical instrument (100) can be introduced into the body of a patient in a minimally-invasive procedure using a catheter system (40) and comprises a stent (1) made from a flexible mesh (2) of thin wires or filaments (2′
- ), wherein the stent (1) configured from flexible mesh (2) exhibits a first predefinable shape during the insertion of the medical instrument (100) in the patient'"'"'s body and a second predefinable shape in the implanted state of the medical instrument (100), wherein said medical instrument (100) is in a collapsed state in the first shape of the stent (1) composed of the flexible mesh (2) and in an expanded state in the second shape of the stent (1) composed of the flexible mesh (2), and wherein the stent (1) composed of the flexible mesh (2) in its second predefinable shape and in the expanded state of the medical instrument (100) exhibits the following;
a distal retention area (10) having a laterally-inverted beaded portion (12), which in the implanted state of the medical instrument (100) is engageable in at least one pocket (51) of the patient'"'"'s defective heart valve (50); a proximal retention area (20); and a center area (15) positioned between the distal and the proximal retention area (10, 20), wherein the center area (15) of the stent (1) of the expanded medical instrument (100) exhibits a smaller diameter than the proximal and/or distal retention area (10, 20), and wherein the center area (15) is configured to form a positive connection with the vascular wall (52) at the height of the defective heart valve (50) in the implanted state of the medical instrument (100). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
- ), wherein the stent (1) configured from flexible mesh (2) exhibits a first predefinable shape during the insertion of the medical instrument (100) in the patient'"'"'s body and a second predefinable shape in the implanted state of the medical instrument (100), wherein said medical instrument (100) is in a collapsed state in the first shape of the stent (1) composed of the flexible mesh (2) and in an expanded state in the second shape of the stent (1) composed of the flexible mesh (2), and wherein the stent (1) composed of the flexible mesh (2) in its second predefinable shape and in the expanded state of the medical instrument (100) exhibits the following;
Specification