Systems for engaging a bodily tissue and methods of using the same

摘要

Systems for engaging a bodily tissue and methods of using the same. In at least one embodiment of an exemplary system for use with a vacuum source for engaging a tissue of the present disclosure, the system comprises an engagement catheter comprising a proximal end, a distal end, first and second lumens extending between the proximal end and the distal end, and a skirt operatively connected to the distal end, an inducer sheath having a proximal portion, a distal portion, and a lumen extending therethrough, the inducer sheath configured so that it is capable of insertion into the second lumen of the engagement catheter, a dilator comprising a tapered tip at a distal end and a hollow channel extending therethrough, the dilator sized and shaped for insertion into the lumen of the inducer sheath, and a vacuum port located at the proximal end of the engagement catheter, the vacuum port being operatively connected to the first lumen of the engagement catheter and capable of operative connection to a vacuum source. In various embodiments, the systems further comprise an inflatable balloon at or near the distal portion of the inducer sheath.

主权项

1. A system for use with a vacuum source for engaging a tissue, the system comprising:
an engagement catheter comprising a proximal end, a distal end, first and second lumens extending between the proximal end and the distal end, and a skirt operatively connected to the distal end, the skirt comprising a proximal end having a circumference substantially similar to an outer circumference of the engagement catheter, the skirt further comprising a distal end having a circumference larger than the outer circumference of the engagement catheter; an inducer sheath having a proximal portion, a distal portion, and a lumen extending therethrough, the inducer sheath configured so that it is capable of insertion into the second lumen of the engagement catheter; a dilator comprising a tapered tip at a distal end and a hollow channel extending therethrough, the dilator sized and shaped for insertion into the lumen of the inducer sheath; and a vacuum port located at the proximal end of the engagement catheter, the vacuum port being operatively connected to the first lumen of the engagement catheter and capable of operative connection to a vacuum source; wherein the first lumen of the engagement catheter includes a suction port located at or near the distal end of the engagement catheter, the suction port configured to allow the distal end of the skirt to removably engage a surface of a bodily tissue such that the skirt is capable of forming a reversible seal with the surface of the bodily tissue when a vacuum source is operatively attached to the vacuum port; wherein the engagement catheter having the inducer sheath and the dilator positioned therein is sized and shaped for percutaneous insertion of the distal end of the engagement catheter into a patient via a patient's vein and further has a sufficient length to permit advancement of the distal end of the engagement catheter to the bodily tissue through the patient's vein, and wherein the skirt is configured to removably engage the surface of the bodily tissue after introduction of a portion of the system into the patient's vein.