Nerve surveillance cannulae systems
First Claim
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1. A system for accessing a surgical target site, comprising:
- a plurality of tissue displacement members dimensioned to be advanced to a surgical site and moved relative to one another to provide surgical access to said surgical target site; and
an expandable member coupled to said plurality of tissue displacement members to prevent tissue from migrating into said surgical target site during surgical access.
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Accused Products
Abstract
An expandable tip cannula system, comprising: a hollow cannula shaft having a proximal end and a distal end; and an expandable tip mounted at the distal end of the hollow cannula shaft, the expandable tip comprising a plurality of generally-triangular shaped petals held together in a radially-inwardly tapered arrangement between adjacent petals, each petal comprising a nerve sensing electrode disposed therein.
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Citations
19 Claims
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1. A system for accessing a surgical target site, comprising:
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a plurality of tissue displacement members dimensioned to be advanced to a surgical site and moved relative to one another to provide surgical access to said surgical target site; and
an expandable member coupled to said plurality of tissue displacement members to prevent tissue from migrating into said surgical target site during surgical access. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An apparatus for preventing tissue ingress during surgical access, comprising:
an expandable member dimensioned to be coupled to a surgical access system to prevent tissue from migrating into a surgical target site during surgical access. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A method for accessing a surgical site, comprising the steps of:
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(a) coupling an expandable member to a plurality of tissue displacement members;
(b) advancing the plurality of tissue displacement members to a surgical target site; and
(c) moving said plurality of displacement members relative to one another to provide surgical access to said surgical site, wherein said expandable member prevents tissue from migrating into said surgical target site. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification