Cannulation device and methods thereof
A cannulation device is disclosed, having a fixed blade, a retractable wedge, and an adjustment nut for mating with a cannula or a cannula assembly. Another cannulation device is disclosed, having a tube with proximal and distal ends. The fixed blade, coupled to the distal end of the tube, comprises a transition edge configured to cover a lead edge of a cannula. The cannulation device has a control rod movable within the tube; a retractable wedge; an actuator coupled to the control rod; and is configured to move the retractable wedge from a piercing position, where the retractable wedge is aligned with the fixed blade, to a retracted position where the retractable wedge has been retracted within the tube. The cannulation device has a cannula adapter and an adjustment nut movable to change a distance between the adjustment nut and the fixed blade.
1. A cannulation device, comprising:
a fixed blade comprising a key;
a retractable wedge;
an adjustment nut for mating with a cannula or a cannula assembly.
2. The cannulation device of claim 1 , further comprising a tube having a key receiver.
3. The cannulation device of claim 2 , wherein:
the fixed blade is coupled to the tube; and
the retractable wedge is slidable within the tube.
4. The cannulation device of claim 2 , wherein the adjustment nut is movable to change a distance between the adjustment nut and the fixed blade.
5. The cannulation device of claim 2 , wherein
the key receiver is configured to mate with the key to prevent movement of the fixed blade in a direction substantially parallel to a longitudinal axis of the tube.
6. The cannulation device of claim 2 , wherein the tube comprises the fixed blade.
7. The cannulation device of claim 1 , further comprising an actuator coupled to the retractable wedge such that movement of the actuator between first and second positions causes the retractable wedge to move between a piercing position and a retracted position.
8. The cannulation device of claim 7 , wherein the piercing position is a default position when no force is applied to the actuator.
9. The cannulation device of claim 1 , wherein the fixed blade comprises a transition edge configured to cover a lead edge of a cannula.
10. The cannulation device of claim 1 , further comprising a cannula adapter.
11. The cannulation device of claim 10 , wherein the cannula adapter comprises:
a strain relief;
a hub body; and
a sealing cap.
12. The cannulation device of claim 11 , wherein the hub body comprises a fluid port.
13. The cannulation device of claim 11 , wherein the sealing cap comprises a receiver configured to receive the fixed blade and the retractable wedge.
14. The cannulation device of claim 11 , further comprising a cannula.
15. A cannulation device, comprising:
a tube having a proximal end and a distal end;
a fixed blade coupled to the distal end of the tube and wherein the fixed blade comprises a transition edge configured to cover a lead edge of a cannula;
a control rod movable within the tube;
a retractable wedge coupled to the control rod;
an actuator coupled to the control rod and configured to move the retractable wedge from a piercing position where the retractable wedge is aligned with the fixed blade to a retracted position where the retractable wedge has been retracted within the tube;
an adjustment nut movable to change a distance between the adjustment nut and the fixed blade; and
a cannula adapter.
16. The cannulation device of claim 15 , further comprising:
a strain relief;
a hub body; and
a sealing cap.