Insertion guide
First Claim
1. An insertion device for insertion of a medical tool towards a target in a body of a subject, the insertion device comprising:
- two flexible strips connected to each other along at least a portion of their lengths and having a central channel therebetween configured to receive the medical tool; and
two rollers disposed on opposite sides of the connected two flexible strips;
wherein the connected two flexible strips and the medical tool are configured to be secured together at an end remote from the two rollers, upon the medical tool being received within the central channel, such that counter-rotation of the two rollers, in an appropriate direction, moves the connected two flexible strips towards the two rollers, resulting in advancement of the medical tool towards the target; and
wherein the insertion device comprises two separate units configured to be connected to and disconnected from each other, each unit comprising one flexible strip of the two flexible strips and one roller of the two rollers.
1 Assignment
0 Petitions
Accused Products
Abstract
A device for insertion of a flexible needle or other such instrument into a tissue, incorporating a collapsible support guide which supports that part of the needle which has not yet penetrated the tissue, preventing it from buckling, and an arrangement which pulls the needle from its proximal end to provide sufficient force for the penetration process. The collapsible support guide can be a pair of flexible strips connected along their length and enclosing the needle along its uninserted length in order to support it, with a mechanism at the distal end of the device to peel the strips from the needle as it is inserted. Insertion can be achieved by a pair of rollers engaging and advancing the strips distally. Alternatively, a telescopic support tube can be used to support the needle, the tube collapsing telescopically as the needle is inserted, to maintain clearance above the needle.
18 Citations
20 Claims
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1. An insertion device for insertion of a medical tool towards a target in a body of a subject, the insertion device comprising:
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two flexible strips connected to each other along at least a portion of their lengths and having a central channel therebetween configured to receive the medical tool; and two rollers disposed on opposite sides of the connected two flexible strips; wherein the connected two flexible strips and the medical tool are configured to be secured together at an end remote from the two rollers, upon the medical tool being received within the central channel, such that counter-rotation of the two rollers, in an appropriate direction, moves the connected two flexible strips towards the two rollers, resulting in advancement of the medical tool towards the target; and wherein the insertion device comprises two separate units configured to be connected to and disconnected from each other, each unit comprising one flexible strip of the two flexible strips and one roller of the two rollers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An insertion system for insertion of a medical tool towards a target in a body of a subject, the insertion system comprising:
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an insertion device comprising; two flexible strips connected to each other along at least a portion of their lengths and having a central channel therebetween configured to receive the medical tool; and two rollers disposed on opposite sides of the connected two flexible strips; wherein the connected two flexible strips and the medical tool are configured to be secured together at an end remote from the two rollers, upon the medical tool being received within the central channel, such that counter-rotation of the two rollers, in an appropriate direction, moves the connected two flexible strips towards the two rollers, resulting in advancement of the medical tool towards an insertion target; a housing configured to receive the insertion device; a locking mechanism configured to lock the insertion device within the housing; and an actuation mechanism configured to counter-rotate the two rollers, the actuation mechanism comprising at least one motor and at least one gear. - View Dependent Claims (15, 16, 17, 18, 19)
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20. An insertion device for insertion of a medical tool towards a target in a body of a subject, the insertion device comprising:
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two flexible strips connected to each other along at least a portion of their lengths and having a central channel therebetween configured to receive the medical tool; two rollers disposed on opposite sides of the connected two flexible strips; a guide member comprising; one or more cavities configured to accommodate the two rollers; an opening configured to allow passage of the medical tool therethrough; and a constraining mechanism configured to be adjusted according to the dimensions of the medical tool, the constraining mechanism being at least partially disposed within the opening, wherein the connected two flexible strips and the medical tool are configured to be secured together at an end remote from the two rollers, upon the medical tool being received within the central channel, such that counter-rotation of the two rollers, in an appropriate direction, moves the connected two flexible strips towards the two rollers, resulting in advancement of the medical tool towards the target.
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Specification