Obturator tip

• US 20050203559A1
• Filed: 03/11/2004
• Published: 09/15/2005
• Est. Priority Date: 03/11/2004
• Status: Active Grant

• Current Assignee: Coopersurgical Incorporated (The Cooper Cos., Inc.)
• Original Assignee: Coopersurgical Incorporated (The Cooper Cos., Inc.)
• Inventors: O'Heeron, Peter T.
• Granted Patent: US 7,320,694 B2
• Time in Patent Office: Days
• US Class Current: 606/185
• CPC Class Codes: A61B 17/3417 Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating syringe needles A61M5/32; dilators A61M29/00
• CPC Class Codes: A61B 2017/3454 Details of tips
• CPC Class Codes: A61B 2017/346 with wings

Abstract

The present invention provides an obturator tip having a rigid, elongated, distal section having a blunt, rounded, distal end designed to separate tissue. The distal section is connected to a proximal section by a central section having tapered outer surfaces. The obturator tip of the present invention is equipped with arc shaped blades positioned on opposite sides of the tip and 180 degrees apart from each other. In one embodiment, the arc shaped blades are positioned rearwardly with respect to the distal section of the obturator. This feature of the present invention allows the elongated distal section to create a small, non-cutting tissue separating track prior to blade contact with the patient.

Claims

1. An obturator tip having a longitudinal axis, said tip comprising:

an elongated distal section having a first diameter, said distal section having a blunt, rounded, distal end for separating tissue;

an elongated proximal section having a second diameter,

a central section for connecting said distal section and said proximal section; and

a pair of blades located on opposing sides of said tip, said blades positioned about 180 degrees apart from each other.

2. The obturator tip of claim 1, wherein said central section further comprises tapered outer surfaces for connecting said proximal section and said distal section.

3. The obturator tip of claim 1, wherein a first end of at least one of said blades is attached to said distal section of said obturator tip.

4. The obturator tip of claim 3, wherein a second end of at least one of said blades is attached to said proximal section of said obturator tip.

5. The obturator tip of claim 1, wherein said second diameter is greater than said first diameter.

6. The obturator tip of claim 2, wherein said outer surfaces of said central section taper in a linear fashion.

7. The obturator tip of claim 2, wherein said outer surfaces of said central section taper in a non-linear fashion.

8. The obturator tip of claim 1, wherein said blades have an arc shaped configuration.

9. The obturator tip of claim 1, wherein said blades have upper and lower surfaces, said upper surfaces sloping in a downward direction.

10. The obturator tip of claim 1, wherein said first diameter of said distal section is uniform.

11. The obturator tip of claim 1, wherein said second diameter of said proximal section is uniform.

12. An obturator tip having a longitudinal axis, said tip comprising:

an elongated distal section having a first diameter, said distal section having a blunt, rounded, distal end for separating tissue;

a proximal section having a second diameter;

a central section for connecting said distal section and said proximal section; and

an insert or molded blade residing partially within said tip, said blade having two wing elements located on opposing sides of said blade and protruding outwardly away from said longitudinal axis.

13. The obturator tip of claim 12, wherein said central section further comprises tapered outer surfaces for connecting said proximal section and said distal section.

14. The obturator tip of claim 13, wherein said outer surfaces of said central section taper in a linear fashion.

15. The obturator tip of claim 13, wherein said outer surfaces of said central section taper in a non-linear fashion.

16. The obturator tip of claim 12, wherein said wing elements have an arc shaped configuration.

17. The obturator tip of claim 12, wherein said second diameter is greater than said first diameter.

18. The obturator tip of claim 12, wherein said wing elements of said insert blade have an upper and a lower surface, said upper surface sloping in a downward direction.

19. The obturator tip of claim 12, wherein said first diameter of said distal section is uniform.

20. The obturator tip of claim 12, wherein said second diameter of said proximal section is uniform.