DEPTH GAUGE SYSTEM
Disclosed are a puncture sealing system and methods of locating a depth of an arteriotomy. The systems can include elongated catheters that are configured to identify the depth within a vessel so that the depth relative to a distal end of the catheter is known during or after a puncture sealing procedure.
1 . A device configured to determine a depth of a puncture in a vessel relative to a skin surface of a patient, the device comprising:
a flexible elongated body that extends along a central longitudinal axis, the flexible elongated body having
a proximal end,
a distal end spaced from the proximal end along the central longitudinal axis,
a first channel that extends from the proximal end toward the distal end along the central longitudinal axis,
a second channel adjacent to the first channel and that extends from the proximal end toward the distal end along the central longitudinal axis, the second channel including a) a proximal portion, and b) a distal portion opposite the proximal portion,
an orifice disposed at an end of the distal portion and that is open to the second channel, and
a mandrel positioned along the distal portion and that is in communication with the orifice; and
a movable shaft disposed inside the second channel and that extends from the proximal portion to the distal portion;
wherein the moveable shaft is configured to actuate the mandrel between a first position where the mandrel is disposed inside the second channel and a second position where a distal end of the mandrel projects from the orifice.
2 . The device of claim 1 , wherein the movable shaft advances the mandrel into the vessel in a downstream direction to a location downstream of the puncture.
3 . The device of claim 2 , wherein the mandrel engages with the puncture and prevents further proximal movement of the device when the device is pulled under tension.
4 . The device of claim 3 , wherein the distal portion further includes a cradle proximal to the orifice, the cradle configured to provide a cross-sectional space for the mandrel to pass out of the orifice in a downstream direction without interfering with the vessel.
5 . The device of claim 4 , wherein the distal portion further includes an alignment member that extends distally from the orifice, the alignment member configured to direct the mandrel in a downstream direction within the vessel and prevent the mandrel from extending proximally into the puncture when the movable shaft is placed under tension.
6 . The device of claim 3 wherein said distal portion is configured to form a straight shaft and is configured to be in line with a blood vessel lumen.
7 . The device of claim 3 wherein said catheter body has a shaft curve at a location proximal to said orifice.
8 . The device of claim 1 , wherein the flexible elongated body includes a plurality of markings spaced apart along a longitudinal direction that is parallel to the central longitudinal axis.
9 . The device of claim 8 , wherein the plurality of markings are etched into an outer surface of the flexible elongated body.
10 . The device of claim 1 , wherein the flexible elongated body has a tapered portion that defines the distal end and a linear portion that extends from the tapered portion to the proximal end, wherein the tapered portion tapers toward the central longitudinal axis.
11 . The device of claim 1 , wherein the first channel and the second channel comprise between 65% and 80% of a distal diameter of the flexible elongated body.
12 . The device of claim 1 , wherein at least a part of the distal portion is offset with respect to the proximal portion.
13 . The device of claim 1 , wherein at least a part of the distal portion is curved.
14 . The device of claim 1 , wherein the distal portion is curved from the distal end toward the proximal end along the central longitudinal axis.
15 . A device configured to determine a depth of a puncture in an vessel relative to a skin surface of a patient, the device comprising:
a flexible elongated body that extends along a central longitudinal axis, the flexible elongated body having:
a proximal end,
a distal end spaced from the proximal end along the central longitudinal axis,
an inner channel that extends from the proximal end toward the distal end along the central longitudinal axis, the inner channel including a) a proximal portion, and b) a distal portion that curves from the distal end toward the proximal end along the central longitudinal axis,
an orifice disposed at an end of the distal portion and that is open to the inner channel, and a mandrel positioned along the distal portion and that is in communication with the orifice;
wherein the mandrel is actuatable between a first position where the mandrel is disposed inside the inner channel and a second position where a distal end of the mandrel projects from the orifice.
16 . The device of claim 13 , wherein the mandrel is advanced into the vessel in a downstream direction to a location downstream of the puncture.
17 . The device of claim 14 , wherein the mandrel engages with the puncture and prevents further proximal movement of the device when the device is pulled under tension.
18 . The device of claim 15 , wherein the distal portion further includes a cradle proximal to the orifice, the cradle configured to provide a cross-sectional space for the mandrel to pass out of the orifice in a downstream direction without interfering with the vessel.
19 . The device of claim 16 , wherein the distal portion further includes a tab proximal to the orifice, the tab configured to direct the mandrel in a downstream direction within the vessel and prevent the mandrel from extending proximally into the puncture.
20 . The device of claim 13 , wherein the flexible elongated body includes a plurality of markings spaced apart along a longitudinal direction that is parallel to the central longitudinal axis.
21 . The device of claim 18 , wherein the plurality of markings are etched into an outer surface of the flexible elongated body.
22 . The device of claim 13 , wherein the flexible elongated body has a tapered portion that defines the distal end and a linear portion that extends from the tapered portion to the proximal end, wherein the tapered portion tapers toward the central longitudinal axis.
23 . The device of claim 13 , wherein inner channel comprises between 65% and 80% of a distal diameter of the flexible elongated body.