Hemostatic clip
View Patent ↗A device for inhibiting blood leakage from the proximal end of a catheter. The device includes a resilient body having a proximal portion and a distal extension portion extending away from the proximal portion and terminating at a first end. The proximal portion and the distal extension portion share a common axis and together define a generally cylindrical passage at least partially therethrough. The distal extension portion is shaped to interface with the catheter and in a substantially sealing relationship. The cylindrical passage is sized to receive a surgical guidewire therein in close apposition.
1. A device for inhibiting blood leakage from a proximal end of a catheter or sheath, having a lumen, that has been inserted into a blood vessel in a living being when a guidewire is inserted into the lumen and the guidewire and the catheter extend outside of the blood vessel; the device comprising:
a flexible, resilient body defining a generally cylindrical passage at least partially therethrough and along at least part of a common axis extending from a first end to a second end of the flexible, resilient body, the cylindrical passage extending at least partially from the first end toward the second end and being sized to receive the guidewire in close apposition therein;
the flexible resilient body having a proximal portion and a distal extension portion extending outwardly away from the proximal portion and terminating at the first end, the proximal portion terminating at the second end opposed to the first end;
the proximal portion and the distal extension portion further together defining an exterior slot extending from the first end to the second end and communicating along a substantially radial path extending outwardly from the generally cylindrical passage between the generally cylindrical passage and an outer surface of the flexible resilient body continuously from the first end to the second end;
the first end being shaped to interface with the proximal end of the catheter in a substantially sealing relationship whereby fluid leakage from the proximal end of the catheter is inhibited; and
at least two actuators extending generally outwardly from the proximal portion such that when force is applied to the actuators the slot is shifted from a closed orientation to an open orientation.
2. The device as claimed in claim 1 , wherein the two actuators each extend outwardly generally radially and an angle between the actuators subtends an arc of about forty five to about one hundred twenty degrees.
3. The device as claimed in claim 1 , wherein the two actuators each extend outwardly generally radially and an angle between the actuators subtends an arc of about ninety degrees.
4. The device as claimed in claim 1 , wherein the two actuators each extend outwardly more than ninety degrees from a radial extension of the slot.
5. The device as claimed in claim 1 , wherein the distal extension portion has a generally conical or frustoconical shape.
6. The device as claimed in claim 1 , wherein the distal extension portion is shaped to interface with the catheter by the first end entering the lumen at the proximal end of the catheter and making circumferential contact by apposition with inner walls of the lumen.
7. The device as claimed in claim 1 , wherein the first end comprises a substantially pointed termination.
8. The device as claimed in claim 1 , wherein the distal extension portion is shaped to interface with the catheter by the first end abutting the end of the catheter substantially without entering the lumen.
9. The device as claimed in claim 1 , wherein the first end comprises a blunt termination.
10. The device as claimed in claim 1 , further comprising at least one circumferential ridge on the distal extension portion.