US20060030920A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Varying-diameter vascular implant and balloon
Assignee: NEO-VASC MEDICAL Ltd
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Filing: 2005-06-28
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Granted: —
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Expires: 2025-06-28
Abstract
Abstract A method for deploying an expandable implant ( 100 ) in a body passage ( 302 ) of varying diameter includes selecting a balloon ( 200 ) having a radial dimension that varies, when the balloon is inflated, in accordance with the varying diameter of the body passage. The balloon is inserted, in a deflated state, into the body passage, with the expandable implant fitted radially around the balloon. The balloon is inflated so as to cause the implant to open, responsively to the varying radial dimension of the balloon, into an expanded shape that approximately matches the varying diameter of the body passage, thus anchoring the implant in the body passage.
Inventors
- 👤 Shmuel Ben-Muvhar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:06
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/95; A61F2/958; A61F2250/00; A61F2250/0014; A61F2250/0039; A61M; A61M25/00; A61M25/10; A61M25/1002
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
106 words
1 . A method for deploying an expandable implant in a body passage of varying diameter, the method comprising: selecting a balloon having a radial dimension that varies, when the balloon is inflated, in accordance with the varying diameter of the body passage; inserting the balloon, in a deflated state, into the body passage, with the expandable implant fitted radially around the balloon; and inflating the balloon so as to cause the implant to open, responsively to the varying radial dimension of the balloon, into an expanded shape that approximately matches the varying diameter of the body passage, thus anchoring the implant in the body passage.
Claim 2
Dependent Claim
106 words
1 . A method for deploying an expandable implant in a body passage of varying diameter, the method comprising: selecting a balloon having a radial dimension that varies, when the balloon is inflated, in accordance with the varying diameter of the body passage; inserting the balloon, in a deflated state, into the body passage, with the expandable implant fitted radially around the balloon; and inflating the balloon so as to cause the implant to open, responsively to the varying radial dimension of the balloon, into an expanded shape that approximately matches the varying diameter of the body passage, thus anchoring the implant in the body passage.
Claim 3
Dependent Claim
31 words
2 . The method according to claim 1 , wherein inserting the balloon comprises attaching the balloon to a catheter and passing the balloon into the body passage using the catheter.
Claim 4
Dependent Claim
61 words
3 . The method according to claim 2 , wherein the body passage is a coronary sinus of a patient, and wherein passing the balloon comprises: guiding the catheter through a vascular path into a right atrium of the patient; and steering the catheter within the right atrium so as to position the balloon and the implant in the coronary sinus.
Claim 5
Dependent Claim
38 words
4 . The method according to claim 1 , wherein the selected balloon has distal and proximal ends, and wherein the radial dimension of the distal end is substantially smaller than the radial dimension of the proximal end.
Claim 6
Dependent Claim
18 words
5 . The method according to claim 4 , wherein the selected balloon has a generally conical profile.
Claim 7
Dependent Claim
37 words
6 . The method according to claim 4 , wherein the selected balloon comprises a proximal segment having a first diameter and a distal segment having a second diameter, which is substantially smaller than the first diameter.
Claim 8
Dependent Claim
38 words
7 . The method according to claim 6 , wherein at least one of the segments terminates in a bulb, having a third diameter that is greater than the diameter of the at least one of the segments.
Claim 9
Dependent Claim
35 words
8 . The method according to claim 6 , wherein the selected balloon comprises a neck intermediate the proximal and distal segments, the neck having a third diameter that is less than the second diameter.
Claim 10
Dependent Claim
36 words
9 . The method according to claim 6 , wherein the balloon has an axis, and wherein an outer wall of at least one of the proximal and distal segments is sloped relative to the axis.
Claim 11
Dependent Claim
42 words
10 . The method according to claim 1 , and comprising: deflating the balloon after the implant has opened; drawing the deflated balloon in a distal direction into a tubular accessory; and withdrawing the accessory, containing the balloon, from the body passage.
Claim 12
Dependent Claim
33 words
11 . The method according to claim 10 , wherein drawing the deflated balloon in the distal direction comprises widening a distal end of the tubular accessory in order to receive the balloon.
Claim 13
Dependent Claim
56 words
12 . The method according to claim 1 , wherein selecting the balloon comprises measuring the diameter of the body passage at multiple points along the passage, and choosing the balloon from among a selection of available balloons, so as to fit the radial dimension of the balloon to the measured diameter of the body passage.
Claim 14
Dependent Claim
45 words
13 . The method according to claim 12 , wherein the body passage is a coronary sinus of a patient, and wherein choosing the balloon comprises fitting the balloon to a widening region of the coronary sinus adjacent to a right atrium of the patient.
Claim 15
Dependent Claim
61 words
14 . The method according to claim 1 , wherein the body passage is a coronary sinus of a patient, and wherein the implant comprises a constriction, and wherein inflating the balloon comprises expanding the implant to match the varying diameter of the coronary sinus except at the constriction, so as to inhibit a flow of blood through the coronary sinus.
Claim 16
Dependent Claim
92 words
15 . Apparatus for treatment of a body passage of varying diameter, the apparatus comprising: a balloon, having a radial dimension that varies, when the balloon is inflated, in accordance with the varying diameter of the body passage; and an expandable implant, fitted radially around the balloon, so that when the balloon is inflated within the body passage, the implant opens, responsively to the varying radial dimension of the balloon, into an expanded shape that approximately matches the varying diameter of the body passage, thus anchoring the implant in the body passage.
Claim 17
Dependent Claim
92 words
15 . Apparatus for treatment of a body passage of varying diameter, the apparatus comprising: a balloon, having a radial dimension that varies, when the balloon is inflated, in accordance with the varying diameter of the body passage; and an expandable implant, fitted radially around the balloon, so that when the balloon is inflated within the body passage, the implant opens, responsively to the varying radial dimension of the balloon, into an expanded shape that approximately matches the varying diameter of the body passage, thus anchoring the implant in the body passage.
Claim 18
Dependent Claim
26 words
16 . The apparatus according to claim 15 , and comprising a catheter, which is adapted to deploy the balloon and implant in the body passage.
Claim 19
Dependent Claim
61 words
17 . The apparatus according to claim 16 , wherein the body passage is a coronary sinus of a patient, and wherein the catheter is adapted to be guided through a vascular path into a right atrium of the patient and to be steered within the right atrium, so as to position the balloon and the implant in the coronary sinus.
Claim 20
Dependent Claim
37 words
18 . The apparatus according to claim 15 , wherein the balloon has distal and proximal ends, and wherein the radial dimension of the distal end is substantially smaller than the radial dimension of the proximal end.
Claim 21
Dependent Claim
17 words
19 . The apparatus according to claim 18 , wherein the balloon has a generally conical profile.
Claim 22
Dependent Claim
36 words
20 . The apparatus according to claim 18 , wherein the balloon comprises a proximal segment having a first diameter and a distal segment having a second diameter, which is substantially smaller than the first diameter.
Claim 23
Dependent Claim
38 words
21 . The apparatus according to claim 20 , wherein at least one of the segments terminates in a bulb, having a third diameter that is greater than the diameter of the at least one of the segments.
Claim 24
Dependent Claim
34 words
22 . The apparatus according to claim 20 , wherein the balloon comprises a neck intermediate the proximal and distal segments, the neck having a third diameter that is less than the second diameter.
Claim 25
Dependent Claim
41 words
23 . The apparatus according to claim 20 , wherein the balloon has an axis and comprises an outer wall, and wherein the outer wall of at least one of the proximal and distal segments is sloped relative to the axis.
Claim 26
Dependent Claim
63 words
24 . The apparatus according to claim 15 , and comprising a tubular accessory, which is adapted to be positioned at a location distal to the implant, and is operative, after the implant has opened and the balloon has been deflated, to receive the deflated balloon inside the accessory and to contain the balloon while the accessory is withdrawn from the body passage.
Claim 27
Dependent Claim
27 words
25 . The apparatus according to claim 24 , wherein the accessory comprises a distal end, which is adapted to widen in order to receive the balloon.
Claim 28
Dependent Claim
47 words
26 . The apparatus according to claim 15 , wherein the balloon is one of a plurality of balloons having different radial dimensions, which are selectable for insertion into the body passage depending upon a measured diameter of the body passage at multiple points along the passage.
Claim 29
Dependent Claim
43 words
27 . The apparatus according to claim 26 , wherein the body passage is a coronary sinus of a patient, and wherein the balloons are dimensioned to fit a widening region of the coronary sinus adjacent to a right atrium of the patient.
Claim 30
Dependent Claim
65 words
28 . The apparatus according to claim 15 , wherein the body passage is a coronary sinus of a patient, and wherein the implant comprises a constriction, such that after inflation of the balloon, the expanded shape of the implant approximately matches the varying diameter of the coronary sinus except at the constriction, so as to inhibit a flow of blood through the coronary sinus.
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