Vascular closure device and related methods
AssigneeTerumo Medical Corporation
InventorJunya Kojima
Life of this patent
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Abstract
The present application discloses a device and methods for performing a vascular closure procedure that comprises inserting a sheath into a tissue tract defined in a body part and injecting a procoagulant material into the tissue tract adjacent a vascular access site via the sheath.
Claims32
A method of performing a vascular closure procedure at a vascular access site that has been formed through a wall of a blood vessel in a body part of a patient, the method comprising:
- inserting a sheath into a tissue tract defined in the body part so that an end of the sheath abuts against the wall of the blood vessel, the sheath having a wall that defines a cavity, the sheath further comprising a nozzle, the nozzle having a first end that is locatable interior to the cavity and a second end that is located exterior to the cavity, the tissue tract being in fluid flow communication with an interior of the blood vessel via the vascular access site such that blood from the blood vessel may enter the tissue tract;
- temporarily sealing the vascular access site so that blood from the blood vessel may no longer enter the tissue tract;
- retracting the sheath to position the end of the sheath in the tissue tract spaced apart from the wall of the blood vessel;
- locating the first end of the nozzle adjacent to the vascular access site by extending the first end of the nozzle beyond the end of the sheath;
- and
- injecting a procoagulant material into the tissue tract at a location adjacent to the vascular access site via the nozzle such that at least a portion of the procoagulant material begins to interact with blood in the tissue tract at the location, wherein the injecting step occurs after the retracting step and while the first end of the nozzle is extended beyond the end of the sheath.
A method of performing a vascular closure procedure at a vascular access site that has been formed through a wall of a blood vessel in a body part of a patient, the method comprising:
- inserting a sheath into a tissue tract defined in the body part so that an end of the sheath abuts against the wall of the blood vessel, the tissue tract being in fluid flow communication with an interior of the blood vessel via the vascular access site such that blood from the blood vessel may enter the tissue tract;
- inserting a positioning catheter through the sheath into the blood vessel, the positioning catheter comprising a cavity and a nozzle slidably attached thereto such that a position of a distal end of the nozzle is adjustable with respect to a distal end of the cavity;
- temporarily sealing the vascular access site so that blood from the blood vessel may no longer enter the tissue tract;
- retracting the sheath to position the end of the sheath in the tissue tract spaced apart from the wall of the blood vessel;
- locating the distal end of the nozzle adjacent to the vascular access site by extending the distal end of the nozzle beyond the end of the sheath;
- and
- injecting a procoagulant material into the tissue tract at a location adjacent to the vascular access site via the nozzle such that at least a portion of the procoagulant material begins to interact with the blood in the tissue tract at the location, wherein the injecting step occurs after the retracting step and while the distal end of the nozzle is extended beyond the end of the sheath.
Dependencies are inferred from the claim text.