Multiportal device and method for percutaneous surgery
First Claim
1. A multiportal device for percutaneous surgery at a symptomatic site, comprising:
- a cannula-guiding device;
a first cannula for percutaneous access to said symptomatic site and at least a second cannula for percutaneous access to said symptomatic site, said first cannula having a proximal end and a distal end, said at least a second cannula having a proximal end a distal end;
a cannula-linking mechanism with means for pivotally connecting said distal end of said first cannula with said distal end of said at least a second cannula, allowing relative motion of said first cannula and said at least a second cannula.
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Accused Products
Abstract
A multiportal device for percutaneous surgery consists of a guiding device with a radial arm that supports an auxiliary guiding device, which can slide along the arm and can be fixed in a require angular position on the arm. The device also includes a first cannula, which can be inserted into the patient'"'"'s body through the guiding device and can be fixed in a required axial position, and a second cannula, which can be inserted into the second guiding unit and fixed therein. The arch-shaped form of the arm ensures intersection of distal ends of both cannulae in one point aimed at the symptomatic site where surgery has to be done. The device is provided with a linking mechanism that links the distal ends of both cannulae in their position inside the body of a patient. In the engaged state of the linking device, the cannulae still have some freedom of relative movements that may be required for manipulation with cannulae during the surgery. The invention also relates to a method of using the multiportal device for percutaneous surgery. The device allows insertion of a plurality of cannulae and permanently maintaining them in controlled positions without resorting to additional X-ray.
72 Citations
30 Claims
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1. A multiportal device for percutaneous surgery at a symptomatic site, comprising:
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a cannula-guiding device;
a first cannula for percutaneous access to said symptomatic site and at least a second cannula for percutaneous access to said symptomatic site, said first cannula having a proximal end and a distal end, said at least a second cannula having a proximal end a distal end;
a cannula-linking mechanism with means for pivotally connecting said distal end of said first cannula with said distal end of said at least a second cannula, allowing relative motion of said first cannula and said at least a second cannula. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method of performing a percutaneous surgical procedure inside a body of a patient, comprising the steps of:
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providing a multiportal device for percutaneous surgery at a symptomatic site inside said body of a patient, comprising;
a first cannula for percutaneous access to said symptomatic site and at least a second cannula for percutaneous access to said symptomatic site, said first cannula having a proximal end and a distal end, said at least a second cannula having a proximal end and distal end; and
a cannula-linking mechanism with means for pivotally connecting said distal end of said first cannula with said distal end of said at least a second cannula allowing relative motion of said first cannula and of said at least a second cannula with respect to each other;
making a first incision in said body of a patient over said symptomatic site;
detachably inserting said first cannula into said symptomatic site through said first incision;
making a second incision in said body of a patient over said symptomatic site;
detachably inserting said second cannula into said symptomatic site through said second incision;
linking said distal end of said first cannula with said distal end of said at least a second cannula;
performing said percutaneous surgical procedure;
unlinking said distal end of said first cannula from said distal end of said at least a second cannula; and
removing said first cannula and said at least a second cannula from said body of a patient.
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29. A method of performing a percutaneous surgical procedure inside a body of a patient, comprising the steps of:
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providing a multiportal device for percutaneous surgery at a symptomatic site inside said body of a patient, comprising;
a first cannula for percutaneous access to said symptomatic site and at least a second cannula for percutaneous access to said symptomatic site, said first cannula having a proximal end and a distal end, said at least a second cannula having a proximal end and a distal end;
a cannula-guiding device comprising a first cannula guiding unit with at least one radial arm, a second guiding unit for said at least a second cannula, a first clamp on a guiding unit selected from a group of guiding units consisting of said first cannula guiding unit and said second guiding unit; and
a cannula-linking mechanism with means for pivotally connecting said distal end of said first cannula with said distal end of said at least a second cannula, said cannula-linking mechanism allowing relative motion of said first cannula and said at least a second cannula with respect to each other;
making a first incision in said body of a patient over said symptomatic site;
detachably inserting said first cannula into said symptomatic site through said first incision;
fitting a guiding unit, selected from a group of guiding units consisting of said first cannula guiding unit and said second guiding unit of said cannula-guiding device, onto said first cannula;
locking said cannula-guiding device on said first cannula in a required position;
adjusting a relative position of said second guiding unit and of said at least one radial arm;
making a second incision in said body of a patient over said symptomatic site;
detachably inserting said at least a second cannula into said symptomatic site through the guiding unit, other than said guiding unit selected from a group of guiding units consisting of said first cannula guiding unit and said second guiding unit, and through said second incision;
linking said distal end of said first cannula with said distal end of said at least a second cannula;
removing said guiding device from said first cannula and from said at least a second cannula;
performing said percutaneous surgical procedure;
unlinking said distal end of said first cannula from said distal end of said at least a second cannula; and
removing said first cannula and said at least a second cannula from said body of a patient.
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30. A method of performing a percutaneous surgical procedure inside a body of a patient, comprising the steps of:
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a) providing a multiportal device for percutaneous surgery at a symptomatic site inside said body of a patient, comprising;
a first cannula for percutaneous access to said symptomatic site and at least a second cannula for percutaneous access to said symptomatic site, said first cannula having a proximal end and a distal end, said at least a second cannula having a proximal end and distal end;
a cannula-guiding device comprising a first cannula guiding unit with at least one radial arm, a second guiding unit, and a first clamp on a guiding unit selected from a group of guiding units consisting of said first cannula guiding unit and said second guiding unit; and
a cannula-linking mechanism with means for pivotally connecting said distal end of said first cannula with said distal end of said at least a second cannula, said cannula-linking mechanism allowing relative motion of said first cannula and said at least a second cannula with respect to each other;
b) making a first incision in said body of a patient over said symptomatic site;
c) detachably inserting said first cannula into said symptomatic site through said first incision;
d) fitting said cannula-guiding device onto said first cannula through a guiding unit selected from a group of guiding units consisting of said first cannula guiding unit and said second guiding unit, and locking said cannula-guiding device on said first cannula in a required position;
e) adjusting a relative position of said second guiding unit and said at least one radial arm;
f) making a second incision in said body of a patient over said symptomatic site;
g) detachably inserting said at least a second cannula into said symptomatic site through a guiding unit, other than said guiding unit selected from a group of guiding units consisting of said first cannula guiding unit and said second guiding unit, and through said second incision;
h) linking said distal end of said first cannula with said distal end of said at least a second cannula;
i) removing a guiding unit, other than said guiding unit selected from a group of guiding units consisting of said first cannula guiding unit and said second guiding unit, from said at least a second cannula;
j) unclamping said first clamp for releasing said guiding device on said first cannula;
k) turning said guiding device together with said arm around said first cannula to another required position;
l) clamping said first clamp for fixing said guiding device on said first cannula;
m) making a third incision in said body of a patient over said symptomatic site;
n) detachably inserting a third cannula into said symptomatic site through said guiding unit, other than said guiding unit selected from a group of guiding units consisting of said first cannula guiding unit and said second guiding unit, and through said third incision, said third cannula having a proximal end and a distal end;
o) linking said distal end of said first cannula with said distal end of said third cannula;
p) repeating said steps from i) to o) for a next cannula, if necessary;
q) removing said guiding device from said first cannula and said next cannula;
r) performing said percutaneous surgical procedure;
s) unlinking said distal end of said first cannula from said distal ends of said at least a second cannula, said third cannula, and said next cannula; and
t) removing said first cannula, said at least a second cannula, said third cannula, and said next cannula from said body of a patient.
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Specification