Cannula ingress system

Patent metadata

Field	Value
Publication number	US-9925326-B2
Application number	US-201514820082-A
Country	US
Kind code	B2
Filing date	Aug 6, 2015
Priority date	Oct 10, 2014
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

Abstract

A cannula ingress system may include a tip stabilization mechanism having a tip stabilization mechanism distal end and a tip stabilization mechanism proximal end, a fixation mechanism, a hypodermic tube having a hypodermic tube distal end and a hypodermic tube proximal end, and a tip having a tip distal end and a tip proximal end. The tip may be disposed within the hypodermic tube wherein the tip distal end extends from the hypodermic tube distal end. The fixation mechanism may be disposed within a fixation mechanism channel of the tip stabilization mechanism. The tip stabilization mechanism may be disposed over the tip and the hypodermic tube distal end.

First claim

What is claimed is:

1. An instrument comprising:
a hypodermic tube having a hypodermic tube distal end and a hypodermic tube proximal end;
a tip having a tip distal end and a tip proximal end wherein the tip proximal end is disposed within the hypodermic tube and the tip distal end extends out from the hypodermic tube distal end;
a tip stabilization mechanism having a tip stabilization mechanism distal end and a tip stabilization mechanism proximal end;
a fixation mechanism channel of the tip stabilization mechanism;
a fixation mechanism disposed in the fixation mechanism channel wherein the tip distal end and the hypodermic tube distal end are disposed within an inner bore of the tip stabilization mechanism and the fixation mechanism is configured to temporarily fix the tip stabilization mechanism in a position relative to the hypodermic tube; and
an inner diameter of the tip stabilization mechanism and an outer diameter of the tip stabilization mechanism wherein the inner diameter is configured to prevent the tip from deforming.

2. The instrument of claim 1 wherein the tip is colored black to enhance visualization of the tip.

3. The instrument of claim 1 wherein the tip is a membrane removing tip.

4. The instrument of claim 1 wherein the tip is an irrigating and aspirating tip.

5. The instrument of claim 1 further comprising:
a valved cannula;
an inner lumen of the valved cannula;
a first valve hinge of the valved cannula; and
a second valve hinge of the valved cannula.

6. The instrument of claim 5 wherein a contact between the tip distal end and the valved cannula is configured to cause the tip to deform.

7. The instrument of claim 6 wherein the inner diameter of the tip stabilization mechanism is configured to prevent a portion of the tip from deforming beyond a line tangent to a wall of the inner lumen of the valved cannula.

8. The instrument of claim 1 further comprising:
a handle having a handle distal end and a handle proximal end; and
a hypodermic tube housing of the handle wherein the hypodermic tube proximal end is disposed in the hypodermic tube housing.

9. The instrument of claim 1 further comprising:
a flow control mechanism having a flow control mechanism distal end and a flow control mechanism proximal end;
a fluid guide having a fluid guide distal end and a fluid guide proximal end, the fluid guide disposed within the flow control mechanism wherein the fluid guide proximal end is disposed between the flow control mechanism distal end and the flow control mechanism proximal end; and
a hypodermic tube housing of the fluid guide wherein the hypodermic tube proximal end is disposed in the hypodermic tube housing.

10. The instrument of claim 9 further comprising:
a pressure vent of the flow control mechanism; and
a pressure vent tactile locater configured to allow a surgeon to tactilely identify a location of the pressure vent.

11. An instrument comprising:
a hypodermic tube having a hypodermic tube distal end and a hypodermic tube proximal end;
a membrane removing tip having a membrane removing tip distal end and a membrane removing tip proximal end wherein the membrane removing tip proximal end is disposed within the hypodermic tube and the membrane removing tip distal end extends out from the hypodermic tube distal end;
a tip stabilization mechanism having a tip stabilization mechanism distal end and a tip stabilization mechanism proximal end;
a fixation mechanism channel of the tip stabilization mechanism;
a fixation mechanism disposed in the fixation mechanism channel wherein the membrane removing tip distal end and the hypodermic tube distal end are disposed within an inner bore of the tip stabilization mechanism and the fixation mechanism is configured to temporarily fix the tip stabilization mechanism in a position relative to the hypodermic tube; and
an inner diameter of the tip stabilization mechanism and an outer diameter of the tip stabilization mechanism wherein the inner diameter is configured to prevent the membrane removing tip from deforming.

12. The instrument of claim 11 wherein the membrane removing tip is colored black to enhance visualization of the membrane removing tip.

13. The instrument of claim 11 further comprising:
a valved cannula;
an inner lumen of the valved cannula;
a first valve hinge of the valved cannula; and
a second valve hinge of the valved cannula.

14. The instrument of claim 13 wherein a contact between the membrane removing tip distal end and the valved cannula is configured to cause the membrane removing tip to deform.

15. The instrument of claim 14 wherein the inner diameter of the tip stabilization mechanism is configured to prevent a portion of the membrane removing tip from deforming beyond a line tangent to a wall of the inner lumen of the valved cannula.

16. An instrument comprising:
a hypodermic tube having a hypodermic tube distal end and a hypodermic tube proximal end;
an irrigating and aspirating tip having an irrigating and aspirating tip distal end and an irrigating and aspirating tip proximal end wherein the irrigating and aspirating tip proximal end is disposed within the hypodermic tube and the irrigating and aspirating tip distal end extends out from the hypodermic tube distal end;
a tip stabilization mechanism having a tip stabilization mechanism distal end and a tip stabilization mechanism proximal end;
a fixation mechanism channel of the tip stabilization mechanism;
a fixation mechanism disposed in the fixation mechanism channel wherein the irrigating and aspirating tip distal end and the hypodermic tube distal end are disposed within an inner bore of the tip stabilization mechanism and the fixation mechanism is configured to temporarily fix the tip stabilization mechanism in a position relative to the hypodermic tube; and
an inner diameter of the tip stabilization mechanism and an outer diameter of the tip stabilization mechanism wherein the inner diameter is configured to prevent the irrigating and aspirating tip from deforming.

17. The instrument of claim 16 wherein the irrigating and aspirating tip is colored black to enhance visualization of the irrigating and aspirating tip.

18. The instrument of claim 16 further comprising:
a valved cannula;
an inner lumen of the valved cannula;
a first valve hinge of the valved cannula; and
a second valve hinge of the valved cannula.

19. The instrument of claim 18 wherein a contact between the irrigating and aspirating tip distal end and the valved cannula is configured to cause the irrigating and aspirating tip to deform.

20. The instrument of claim 19 wherein the inner diameter of the tip stabilization mechanism is configured to prevent a portion of the irrigating and aspirating tip from deforming beyond a line tangent to a wall of the inner lumen of the valved cannula.

Assignees

• Katalyst Surgical Llc

Inventors

• Scheller Gregg D
• Scheller Steven G
• Niehoff Bradley S

Classifications

• A61M39/22

  Valves or arrangement of valves {(A61M39/02, A61M39/0247, A61M39/16 take precedence; regulating valves in infusion systems A61M5/16881; in devices worn by the patient for the reception of urine, faeces, catamenial or other discharge, or in colostomy devices A61F5/4405)} · CPC title

• A61B17/3462

  with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals (expandable cannulas A61B17/3417) · CPC title

• A61B17/3421

  Cannulas · CPC title

• A61M2205/582

  by tactile feedback · CPC title

• A61M3/0283 Primary

  with at least two inner passageways, a first one for irrigating and a second for evacuating (suction-irrigation systems A61M1/77; aspiration tips with fluid supply means A61M1/85; for negative pressure wound therapy A61M1/92) · CPC title