Method and inflatable chamber apparatus for separating layers of tissue
First Claim
Patent Images
1. A device for dissecting tissue layers comprising:
- an elongate tubular member having a proximal end and a distal end defining a bore therein;
an inflatable member including a neck, the inflatable member having an inflated and an uninflated state; and
means for releasably attaching the inflatable member adjacent the distal end of the elongate tubular member including a circumferential groove defined in an inner wall of the distal end of the elongate tubular member that is adapted and configured for receiving the neck of the inflatable member and a cord disposed in the elongate tubular member, wherein a first end of the cord is attached to the neck of the inflatable member and a second end of the cord extends proximally for at least the length of the tubular member.
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Abstract
An apparatus for tissue dissection and instrument anchoring and methods for using such apparatus are disclosed. The apparatus includes a cannula, a dissection balloon releasably attached to the cannula at the distal end, an anchoring balloon disposed on the cannula, and a means for inflating both balloons.
179 Citations
18 Claims
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1. A device for dissecting tissue layers comprising:
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an elongate tubular member having a proximal end and a distal end defining a bore therein; an inflatable member including a neck, the inflatable member having an inflated and an uninflated state; and means for releasably attaching the inflatable member adjacent the distal end of the elongate tubular member including a circumferential groove defined in an inner wall of the distal end of the elongate tubular member that is adapted and configured for receiving the neck of the inflatable member and a cord disposed in the elongate tubular member, wherein a first end of the cord is attached to the neck of the inflatable member and a second end of the cord extends proximally for at least the length of the tubular member. - View Dependent Claims (2, 3, 4)
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5. A device for dissecting tissue layers comprising:
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a tubular member having a proximal end and a distal end and defining a bore therein; a first inflatable member releasably attached adjacent the distal end of the tubular member and having inflated and uninflated states, the first inflatable member having a neck and being in fluid communication with the inner tube; a second inflatable member having inflated and uninflated states, the second inflatable member being disposed around an outer surface of the tubular member, wherein the second inflatable member is longitudinally spaced from the first inflatable member; and means for releasably attaching the first inflatable member to the distal end of the tubular member including a circumferential groove formed on an inner wall of the tubular member adjacent the open distal end of the tubular member that is adapted and configured for receiving the neck of the first inflatable member, and wherein the first inflatable member is releasably attached to the tubular member. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of creating a working space in a patient comprising the steps of:
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making an incision in tissue of the patient; inserting a surgical device into the incision, the surgical device including a tubular member having a proximal end, a distal end and a bore therein, and first and second inflatable members where the first inflatable member is attached to the tubular member adjacent the distal end and the second inflatable member is disposed adjacent a distal end of the tubular member, the first and second inflatable members each having inflated and uninflated states; inflating the first inflatable member to separate layers of tissue within the patient to create the working space while the second inflatable member is in an uninflated state, wherein the first inflatable member is releasably attached to the tubular member; and deflating the first inflatable member and releasing the first inflatable member from the proximal end of the tubular member. - View Dependent Claims (15, 16)
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17. A method of creating a working space in a patient comprising the steps of:
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making an incision in tissue of the patient; inserting a surgical device into the incision, the surgical device including; a tubular member having a proximal end, a distal end and a bore therein, and first and second inflatable members where the first inflatable member is attached to the tubular member adjacent the distal end and the second inflatable member is disposed adjacent a distal end of the tubular member, the first and second inflatable members each having inflated and uninflated states; inflating the first inflatable member to separate layers of tissue within the patient to create the working space while the second inflatable member is in an uninflated state, wherein the first inflatable member is releasably attached to the tubular member; and removing the first inflatable member by pulling the first inflatable member through the bore of the tubular member such that the first inflatable member exits the proximal end of the tubular member.
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18. A method of creating a working space in a patient comprising the steps of:
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making an incision in tissue of the patient; inserting a surgical device into the incision, the surgical device including; a tubular member having a proximal end, a distal end and a bore therein, first and second inflatable members where the first inflatable member is releasably attached to the tubular member adjacent the distal end and the second inflatable member is disposed adjacent a distal end of the tubular member, the first and second inflatable members each having inflated and uninflated states, and means for releasably attaching the first inflatable member to the tubular member, including a circumferential groove adjacent the distal end of the tubular member that is adapted and configured for receiving a neck of the first inflatable member and a cord; inflating the first inflatable member to separate layers of tissue within the patient to create the working space while the second inflatable member is in an uninflated state; and pulling the cord to release the first inflatable member and withdrawing the first inflatable member through the proximal end of the tubular member.
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Specification