Catheter insertion device
View Patent ↗A catheter insertion device that allows for single-handed insertion of the catheter within the vasculature of the patient is disclosed. The catheter insertion device includes a handle, a needle cannula partially within the handle, a guidewire partially within the handle and the needle cannula, and a first actuator connected to the handle and the guidewire. The first actuator is movable in a proximal direction relative to the handle to cause the guidewire to move in a distal direction away from the handle, and is movable in a distal direction relative to the handle to cause the guidewire to move in a proximal direction towards the handle. The catheter insertion device can also include a needle support that stabilizes the needle cannula during insertion of the needle cannula into a patient.
1. A catheter insertion device, comprising:
a handle comprising a front face having an opening;
a needle cannula partially within the handle, the needle cannula comprising a sharp distal tip extending distally from the handle;
a guidewire partially within the handle and the needle cannula; and
a first actuator connected to the handle and the guidewire, the first actuator being movable relative to the handle to move the guidewire relative to the handle, and the opening in the front face of the handle configured to receive the first actuator, wherein:
moving the first actuator in a proximal direction relative to the handle causes a distal end of the guidewire to move in a distal direction away from the handle, and
moving the first actuator in the distal direction relative to the handle causes the distal end of the guidewire to move in the proximal direction towards the handle,
such that moving the first actuator in a longitudinal direction for a distance causes the guidewire to move in an opposite longitudinal direction of the first actuator for the same distance.
2. The catheter insertion device of claim 1 , wherein:
the first actuator is a slider which is moved by sliding over a portion of the handle, and
the first actuator comprises an arm extending downward from a bottom surface of the first actuator, the arm being connected to a proximal end of the guidewire.
3. The catheter insertion device of claim 2 , wherein the arm comprises a through hole, the proximal end of the guidewire being secured within the through hole.
4. The catheter insertion device of claim 3 , wherein the proximal end of the guidewire comprises a ball, a diameter of the ball being greater than a diameter of the through hole, such that the guidewire is secured within the through hole by an interference fit.
5. The catheter insertion device of claim 1 , wherein the guidewire has an outer diameter less than or equal to 0.010 inches.
6. The catheter insertion device of claim 1 , wherein the handle comprises a looped proximal end portion that defines a channel that holds a portion of the guidewire.
7. The catheter insertion device of claim 1 , further comprising a catheter assembly removably connected to the handle, the catheter assembly comprising an elongated catheter connected to a catheter hub.
8. The catheter insertion device of claim 7 , further comprising a needle safety clip that covers the sharp distal tip of the needle cannula following removal of the needle cannula from the catheter hub.
9. The catheter insertion device of claim 7 , wherein the catheter hub houses a hemostasis valve.
10. The catheter insertion device of claim 9 , wherein the hemostasis valve comprises a distal piece and a proximal piece that when mated define a closed inner cavity.
11. The catheter insertion device of claim 10 , wherein the volume of the closed inner cavity defined by the proximal piece is greater than any volume of the closed inner cavity defined by the distal piece.
12. The catheter insertion device of claim 7 , further comprising a second actuator connected to the handle, the second actuator being movable relative to the handle to push the catheter assembly relative to the handle.
13. The catheter insertion device of claim 12 , wherein the second actuator comprises a notch configured to receive a portion of the catheter hub.
14. The catheter insertion device of claim 12 , wherein the second actuator comprises an enlarged proximal end that engages with the handle to limit travel of the second actuator relative to the handle.
15. The catheter insertion device of claim 1 , further comprising a needle support connected to the handle, the needle support configured to stabilize an intermediate portion of the needle cannula during insertion of the needle cannula into a patient, said intermediate portion of the needle cannula freely extending from the handle.
16. The catheter insertion device of claim 15 , wherein the needle support comprises a top portion that abuts a bottom surface of the first actuator to prevent movement of the needle support relative to the handle.
17. A catheter insertion device, comprising:
a handle comprising a chamber;
a needle cannula partially within the handle, the needle cannula comprising a sharp distal tip extending distally from the handle;
a guidewire partially within the handle and the needle cannula; and
a first actuator connected to the handle and the guidewire, the first actuator being movable relative to the handle to move the guidewire relative to the handle, and the chamber configured to stabilize movement of the first actuator,
wherein:
moving the first actuator in a proximal direction relative to the handle causes a distal end of the guidewire to move in a distal direction away from the handle, and
moving the first actuator in the distal direction relative to the handle causes the distal end of the guidewire to move in the proximal direction towards the handle.
18. The catheter insertion device of claim 17 , wherein:
the first actuator is a slider which is moved by sliding over a portion of the handle, and
the first actuator comprises an arm extending downward from a bottom surface of the first actuator, the arm being connected to a proximal end of the guidewire.
19. The catheter insertion device of claim 18 , wherein the arm comprises a through hole, the proximal end of the guidewire being secured within the through hole.
20. The catheter insertion device of claim 19 , wherein the proximal end of the guidewire comprises a ball, a diameter of the ball being greater than a diameter of the through hole, such that the guidewire is secured within the through hole by an interference fit.
21. The catheter insertion device of claim 17 , wherein the handle comprises a looped proximal end portion that defines a channel that holds a portion of the guidewire.
22. The catheter insertion device of claim 17 , further comprising a catheter assembly removably connected to the handle, the catheter assembly comprising an elongated catheter connected to a catheter hub.
23. The catheter insertion device of claim 22 , further comprising a needle safety clip that covers the sharp distal tip of the needle cannula following removal of the needle cannula from the catheter hub.
24. The catheter insertion device of claim 22 , wherein the catheter hub houses a hemostasis valve.
25. The catheter insertion device of claim 22 , further comprising a second actuator connected to the handle, the second actuator being movable relative to the handle to push the catheter assembly relative to the handle.
26. A catheter insertion device, comprising:
a handle;
a needle cannula partially within the handle, the needle cannula comprising a sharp distal tip extending distally from the handle;
a guidewire partially within the handle and the needle cannula;
a first actuator connected to the handle and the guidewire, the first actuator being movable relative to the handle to move the guidewire relative to the handle; and
a needle support rotationally coupled to a region of the handle and configured to stabilize a portion of the needle cannula during insertion of the needle cannula into a patient,
wherein moving the first actuator in a longitudinal direction for a distance causes the guidewire to move in an opposite direction for the same distance.
27. The catheter insertion device of claim 26 , wherein the needle support abuts a surface of the first actuator to prevent movement of the needle support relative to the handle.