Patent GB1316157A successfully refreshed from Google Patents.
US20040089306A1
Expired / Lapsed
US
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Devices and methods for removing bronchial isolation devices implanted in the lung
Assignee: Pulmonx Corp
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Filing: 2003-05-28
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Granted: —
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Expires: 2023-05-28
Abstract
Abstract Disclosed are methods and devices for removing bronchial isolation devices from a lung. According to one method, a flow control device is removed from a bronchial passageway of a patient. A removal device having an elongate shaft and a distal engaging element is provided. The removal device is inserted through the bronchial isolation device such that the distal engaging element is positioned within or distally of the bronchial isolation device in the bronchial passageway. The engaging element is then transitioned to have a radial size that is larger than the radial size of at least a portion of the bronchial isolation device. The bronchial isolation device is engaged with the distal engaging element to urge the bronchial isolation device in the proximal direction, thereby removing the bronchial isolation device out of the bronchial passageway. The bronchial isolation device can also be equipped with a handle that will collapse the bronchial isolation device when force is applied to the handle.
Inventors
- 👤 Ronald Hundertmark
- 👤 Antony Fields
- 👤 Michael Hendricksen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:17
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2412; A61F2/04; A61F2/06; A61F2/2418; A61F2/2427; A61F2/82; A61F2/86; A61F2/90; A61F2/91; A61F2002/043
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
122 words
1 . A method of removing a flow control device implanted in a bronchial passageway of a patient, comprising: providing a removal device having an elongate shaft and a distal engaging element; inserting the removal device through the bronchial isolation device such that the distal engaging element is positioned within or distally of the bronchial isolation device in the bronchial passageway; transitioning the engaging element of the removal device to have a radial size that is larger than the radial size of at least a portion of the bronchial isolation device; engaging the bronchial isolation device with the distal engaging element to urge the bronchial isolation device in the proximal direction, thereby removing the bronchial isolation device out of the bronchial passageway.
Claim 2
Dependent Claim
122 words
1 . A method of removing a flow control device implanted in a bronchial passageway of a patient, comprising: providing a removal device having an elongate shaft and a distal engaging element; inserting the removal device through the bronchial isolation device such that the distal engaging element is positioned within or distally of the bronchial isolation device in the bronchial passageway; transitioning the engaging element of the removal device to have a radial size that is larger than the radial size of at least a portion of the bronchial isolation device; engaging the bronchial isolation device with the distal engaging element to urge the bronchial isolation device in the proximal direction, thereby removing the bronchial isolation device out of the bronchial passageway.
Claim 3
Dependent Claim
36 words
2 . A method as defined in claim 1 , wherein the engaging element of the removal device comprises a set of jaws that can be opened to enlarge the distal region of the removal device.
Claim 4
Dependent Claim
35 words
3 . A method as defined in claim 1 , wherein the enlargeable distal region of the removal device comprises a balloon that can be inflated to enlarge the distal region of the removal device.
Claim 5
Dependent Claim
138 words
4 . A removable flow control device for implanting in a bronchial passageway, comprising: a valve member that regulates fluid flow through the flow control device; a seal member that at least partially surrounds the valve member, wherein the seal member seals with the interior wall of the bronchial passageway when the flow control device is implanted in the bronchial passageway; a retainer member secured to the seal member, wherein the retainer member exerts a radial force against the interior wall of the bronchial passageway when the flow control device is implanted in the bronchial passageway and retains the flow control device in a fixed location in the bronchial passageway; and a first removal handle attached to the retainer member, the handle being configured to collapse the retainer member upon application of a force to the handle member.
Claim 6
Dependent Claim
138 words
4 . A removable flow control device for implanting in a bronchial passageway, comprising: a valve member that regulates fluid flow through the flow control device; a seal member that at least partially surrounds the valve member, wherein the seal member seals with the interior wall of the bronchial passageway when the flow control device is implanted in the bronchial passageway; a retainer member secured to the seal member, wherein the retainer member exerts a radial force against the interior wall of the bronchial passageway when the flow control device is implanted in the bronchial passageway and retains the flow control device in a fixed location in the bronchial passageway; and a first removal handle attached to the retainer member, the handle being configured to collapse the retainer member upon application of a force to the handle member.
Claim 7
Dependent Claim
32 words
5 . A device as defined in claim 4 , wherein the retainer member comprises a frame having at least one eyelet and wherein the removal handle is threaded through the eyelet.
Claim 8
Dependent Claim
33 words
6 . A device as defined in claim 5 , wherein a plurality of eyelets are positioned around a periphery of the retainer member, the handle being threaded through the plurality of eyelets.
Claim 9
Dependent Claim
32 words
7 . A device as defined in claim 4 , wherein the removal handle can be tensioned to apply a constriction force to the retainer member for radially collapsing the retainer member.
Claim 10
Dependent Claim
18 words
8 . A device as defined in claim 1 , wherein the removal handle comprises a flexible suture.
Claim 11
Dependent Claim
39 words
9 . A device as defined in claim 1 , wherein the removal handle is attached to at least two locations on the retainer member so that the removal handle can apply a distributed force to the retainer member.
Claim 12
Dependent Claim
25 words
10 . A device as defined in claim 1 , wherein the at least two locations are located on a periphery of the retainer member.
Claim 13
Dependent Claim
19 words
11 . A device as defined in claim 1 , wherein the removal handle is a shape memory material.
Claim 14
Dependent Claim
28 words
12 . A device as defined in claim 11 , wherein the removal handle has a first shape at room temperature and a second shape at body temperature.
Claim 15
Dependent Claim
33 words
13 . A device as defined in claim 11 , wherein the removal handle has a first shape at body temperature and a second shape at a second temperature other than body temperature.
Claim 16
Dependent Claim
19 words
14 . A device as defined in claim 13 , wherein the second temperature is cooler than body temperature.
Claim 17
Dependent Claim
19 words
15 . A device as defined in claim 13 , wherein the second temperature is warmer than body temperature.
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