Telescopic percutaneous tissue dilation systems and related methods
First Claim
Patent Images
1. A percutaneous telescopic tissue dilation system, comprising:
- a first dilation tube having a proximal end and a distal end;
a second dilation tube having a proximal end, a distal end, and a lumen extending from the proximal end to the distal end, the lumen being dimensioned to accommodate at least a portion of the first dilation tube;
a dilation tube retention assembly effective in retaining the second dilation tube in a substantially fixed position relative to the first dilation tube prior to dilation of tissue of an individual, and in releasing the second dilation tube from the substantially fixed position to facilitate movement of the second dilation tube towards the distal end of the first dilation tube to dilate tissue of a patient; and
a third dilation tube having a lumen dimensioned to accommodate at least a portion of the second dilation tube, wherein the first dilation tube defines a lumen configured to receive a guide wire that is configured to guide the first dilation tube toward a target structure, and wherein the dilation tube retention assembly is effective in retaining the third dilation tube in a substantially fixed position relative to at least one of the first dilation tube and the second dilation tube, and wherein the dilation tube retention assembly includes at least one locking member that is configured to retain the second dilation tube in the substantially fixed position relative to the first dilation tube.
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Abstract
Tissue dilation systems are disclosed. The present systems provide percutaneous access to one or more target structures located in a patient'"'"'s body. The tissue dilation systems include two or more tissue dilation tubes telescopically arranged and moveable relative to each other. The tissue dilation tubes can be preassembled prior to use by utilizing a dilation tube retention assembly which can maintain the dilation tubes in a substantially fixed position and release the tubes therefrom in order to dilate a patient'"'"'s tissue. Methods of producing the present systems and using the present systems in surgical procedures are also disclosed.
200 Citations
30 Claims
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1. A percutaneous telescopic tissue dilation system, comprising:
- a first dilation tube having a proximal end and a distal end;
a second dilation tube having a proximal end, a distal end, and a lumen extending from the proximal end to the distal end, the lumen being dimensioned to accommodate at least a portion of the first dilation tube;
a dilation tube retention assembly effective in retaining the second dilation tube in a substantially fixed position relative to the first dilation tube prior to dilation of tissue of an individual, and in releasing the second dilation tube from the substantially fixed position to facilitate movement of the second dilation tube towards the distal end of the first dilation tube to dilate tissue of a patient; and
a third dilation tube having a lumen dimensioned to accommodate at least a portion of the second dilation tube, wherein the first dilation tube defines a lumen configured to receive a guide wire that is configured to guide the first dilation tube toward a target structure, and wherein the dilation tube retention assembly is effective in retaining the third dilation tube in a substantially fixed position relative to at least one of the first dilation tube and the second dilation tube, and wherein the dilation tube retention assembly includes at least one locking member that is configured to retain the second dilation tube in the substantially fixed position relative to the first dilation tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- a first dilation tube having a proximal end and a distal end;
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16. A method of producing a percutaneous telescopic tissue dilation system, comprising:
- inserting a first dilation tube into a lumen of a second dilation tube, wherein the first dilation tube has a lumen sized and configured to receive a guide wire;
inserting the second dilation tube into a lumen of a third dilation tube; and
engaging a dilation tube retention assembly with the first dilation tube and second dilation tube to maintain at least one of the first dilation tube and the second dilation tube in a substantially fixed position, wherein the dilation tube retention assembly is effective in retaining the third dilation tube in a substantially fixed position relative to at least one of the first dilation tube and the second dilation tube, wherein the dilation tube retention assembly includes at least one locking member that is configured to retain the second dilation tube in the substantially fixed position relative to the first dilation tube. - View Dependent Claims (17, 18)
- inserting a first dilation tube into a lumen of a second dilation tube, wherein the first dilation tube has a lumen sized and configured to receive a guide wire;
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19. A method of dilating tissue of a patient, comprising:
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placing a telescopic tissue dilation system against a tissue region of a patient, the telescopic tissue dilation system comprising a first dilation tube located in a lumen of a second dilation tube, and a dilation tube retention assembly engageable with at least one of the first dilation tube and the second dilation tube; advancing a guide wire into the patient towards a target structure; advancing the first dilation tube over the guide wire and into the patient towards the target structure to provide dilation of the tissue around the first dilation tube; releasing the second dilation tube from a substantially fixed position; advancing the second dilation tube into the patient towards the target structure to provide greater dilation of the tissue compared to the dilation of the tissue around the first dilation tube; and advancing a third dilation tube into the patient towards the target structure over the second dilation tube. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification