Surgical expansion device
First Claim
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1. A surgical device for application in a treatment performed on the human or animal body to provide access to a surgical site in said body, the device comprising:
- expansion means (1) for exerting a force on the organs or tissues at said surgical site;
a fluid reservoir (2); and
means (3) for conveying fluid from said reservoir (2) to expand said expansion means (1) through a connection port (7), the connection port providing access to the internal space of the expansion means (1), wherein,said expansion means (1) has elongated expansion members (8), the expansion members being angled with respect to each other'"'"'s longitudinal direction in an expanded state, and said expansion members each having opposite ends which are spaced apart in their longitudinal direction,a flexible web (12) extends between at least two of the expansion members (8), the at least two expansion members (8) bordering an open side of the expansion means, the open side i) being void of a web or other closure and ii) configured to provide unrestricted access from an inside of the expansion means to an outside of the expansion means,a pull member (14) is connected to the opposite ends of at least one of the expansion members (8), a length of said pull member between said opposite ends being less than a length of said at least one of the expansion members (8) between said opposite ends so that said at least one of the expansion members (8), when in the expanded state, is urged by said pull member (14) to have a slightly curved shape by restricting a full expansion of said at least one expansion member (8), andthe expansion means (1), during and after expansion thereof, forms a frame with the open side.
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Abstract
A surgical device for application in a treatment performed on the human or animal body with the aim of providing access to a surgical site in the body by exerting a force, upon expansion of the device at the location of the surgical site, on the organs and/or tissues at the surgical site, e.g. for mobilizing and/or supporting organs and/or tissues, the surgical device including an expansion structure, at least one fluid reservoir, and a conduit for conveying fluid from the reservoir to the expansion structure.
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Citations
9 Claims
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1. A surgical device for application in a treatment performed on the human or animal body to provide access to a surgical site in said body, the device comprising:
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expansion means (1) for exerting a force on the organs or tissues at said surgical site; a fluid reservoir (2); and means (3) for conveying fluid from said reservoir (2) to expand said expansion means (1) through a connection port (7), the connection port providing access to the internal space of the expansion means (1), wherein, said expansion means (1) has elongated expansion members (8), the expansion members being angled with respect to each other'"'"'s longitudinal direction in an expanded state, and said expansion members each having opposite ends which are spaced apart in their longitudinal direction, a flexible web (12) extends between at least two of the expansion members (8), the at least two expansion members (8) bordering an open side of the expansion means, the open side i) being void of a web or other closure and ii) configured to provide unrestricted access from an inside of the expansion means to an outside of the expansion means, a pull member (14) is connected to the opposite ends of at least one of the expansion members (8), a length of said pull member between said opposite ends being less than a length of said at least one of the expansion members (8) between said opposite ends so that said at least one of the expansion members (8), when in the expanded state, is urged by said pull member (14) to have a slightly curved shape by restricting a full expansion of said at least one expansion member (8), and the expansion means (1), during and after expansion thereof, forms a frame with the open side.
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2. A method for providing access to a surgical site in a human or animal body, comprising the steps of:
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providing an inflatable surgical device, comprising an expansion means (1), at least one fluid reservoir (2), means (3) for conveying fluid from said reservoir (2) to expand said expansion means (1) through a connection port (7) to give access to the internal space of the expansion means (1), wherein the expansion means has elongate expansion members (8) angled with respect to longitudinal directions of the expansion members in an expanded state, and the expansion members (8), in the expanded state, form a frame with open sides and each having opposite ends which are spaced apart in said longitudinal directions, the open sides being void of a web or other closure and configured to provide unrestricted access from an inside of the expansion means to an outside of the expansion means, and wherein a flexible web (12) extends between at least two of the elongate expansion members (8); placing the surgical device at the surgical site near an organ or tissue in the human or animal body; providing the surgical device with at least one restrictor (14) for restricting an expansion of the expansion means, said restrictor being connected to the opposite ends of at least one of the expansion members (8), a length of said restrictor between said opposite ends being less than a length of said at least one of the expansion members (8) between said opposite ends; inflating the elongate expansion members (8) so the elongate expansion members (8) form the frame and the surgical device exerts a force against the organ or tissue to establish a free space within the human or animal body, the open sides being open during said inflating of the expansion members (8); obtaining a specific predetermined shape of the expansion means upon the inflating of the expansion means with said at least one restrictor (14), said at least one restrictor (14) restricting a full expansion of said expansion means; performing operations at the surgical site through the open sides of the frame. - View Dependent Claims (3)
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4. A surgical device for application in a treatment performed on the human or animal body to provide access to a surgical site in said body, the device comprising:
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a plurality of elongate expansion members (8), each expansion member, when expanded in an expanded mode, having a longitudinal shape and angled with respect to each other'"'"'s longitudinal direction, and said expansion members each having opposite ends which are spaced apart in a longitudinal direction, an end of each of said expansion members attached to an end of another of said expansion members; a fluid reservoir (2); means (3) for conveying fluid from said reservoir (2) to expand said expansion members (8) through a connection port (7), the connection port providing access to an internal space of the expansion members (8); and a pull member (14), having a total length between opposite ends that is less than a total length between the opposite ends of at least one of the expansion members (8), the pull member (14) connected to the opposite ends of the at least one of the expansion members (8) so that, when in the expanded mode, the at least one of the expansion members (8) is urged by said pull member (14) to have a slightly curved shape by restricting a full expansion of said at least one expansion member (8), wherein, in the expanded mode, said expansion members (8) form a frame of a spatial structure, the spatial structure having a height, a width, a length, and open sides between the expansion members, the open sides being void of a web or other closure, and wherein said sides are open during expansion of said expansion members (8) into the expanded mode. - View Dependent Claims (5, 6, 7, 8, 9)
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Specification