Surgical instruments with reflective mirror-like surfaces

Patent metadata

Field	Value
Publication number	US-11219355-B2
Application number	US-201715676293-A
Country	US
Kind code	B2
Filing date	Aug 14, 2017
Priority date	Aug 14, 2017
Publication date	Jan 11, 2022
Grant date	Jan 11, 2022

Abstract

Systems, devices, and methods for providing a surgeon with improved viewing angles during arthroscopic surgical procedures are provided. In some embodiments, a cannula is provided that includes an elongate body that can extend along a longitudinal axis, the body having a proximal end, a distal end, a lumen extending through the body between openings at the proximal and distal ends. The cannula can have a first flange member that can extend at least partially around at least one of the openings, and the first flange member can have a distal-facing surface, where at least a portion of the distal-facing surface can be reflective.

First claim

What is claimed is:

1. A cannula, comprising:
a thermoplastic polymer elongate body extending along a longitudinal axis, the body having an outer surface, a thread arranged on the outer surface configured to contact tissue, a proximal end, a distal end, and a lumen extending through the body between openings at the proximal and distal ends;
a first flange member that extends at least partially around the opening at the distal end, the first flange member having a distal-facing surface, wherein at least a portion of the distal-facing surface is reflective, and a mirror on the first flange member provides the reflectivity of the distal-facing surface; and
a second flange member that extends at least partially around the opening at the proximal end, the second flange member having a proximal-facing surface, wherein at least a portion of the proximal-facing surface is reflective;
wherein the elongate body is configured to be advanced distally into a patient such that the elongate body is positioned relative to the patient with the first flange member located inside the patient and the second flange member located outside the patient.

2. The cannula of claim 1 , wherein the first flange member has a circular cross section in a plane normal to the longitudinal axis of the body.

3. The cannula of claim 1 , wherein the first flange member has a first radius of curvature.

4. The cannula of claim 1 wherein the first flange member is oriented at an angle relative to the longitudinal axis of the body from about 90 degrees to about 150 degrees.

5. The cannula of claim 1 , wherein the first flange member is oriented at an angle relative to the longitudinal axis of the body from about 10 degrees to about 170 degrees.

6. The cannula of claim 1 , wherein the second flange member is curved.

7. The cannula of claim 1 , wherein the first flange member is flexible.

8. The cannula of claim 1 , wherein the portion of the distal-facing surface is substantially flat.

9. The cannula of claim 1 , wherein the body is one of flexible and rigid.

10. The cannula of claim 1 , wherein a diameter of at least one portion of the body varies along the longitudinal axis thereof.

11. The cannula of claim 1 , wherein the thread extends continuously along the body.

12. The cannula of claim 1 , wherein the body and the openings share the longitudinal axis.

13. The cannula of claim 1 , wherein the first flange member extends radially outward from the distal end of the body, and the second flange member extends radially outward from the proximal end of the body.

14. A cannula, comprising:
a thermoplastic polymer elongate body extending along a longitudinal axis, the body having an outer surface, a thread arranged on the outer surface configured to contact tissue, a proximal end, a distal end, and a lumen extending through the body between openings at the proximal and distal ends;
a first flange member that extends at least partially around the opening at the distal end, the first flange member having a distal-facing surface, wherein at least a portion of the distal-facing surface is reflective, and a reflective material painted on the first flange member provides the reflectivity of the distal-facing surface; and
a second flange member that extends at least partially around the opening at the proximal end, the second flange member having a proximal-facing surface, wherein at least a portion of the proximal-facing surface is reflective;
wherein the elongate body is configured to be advanced distally into a patient such that the elongate body is positioned relative to the patient with the first flange member located inside the patient and the second flange member located outside the patient.

15. A cannula, comprising:
an elongate body extending along a longitudinal axis, the body having an outer surface, a thread arranged on the outer surface configured to contact tissue, a proximal end, a distal end, and a lumen extending through the body between openings at the proximal and distal ends;
a first flange member that extends at least partially around at least one of the openings; and
a first reflective member on a surface of the first flange member;
wherein the elongate body is configured to be advanced distally into a patient;
the first reflective member is a mirror on the first flange member;
the elongate body is configured to be advanced distally into the patient such that the elongate body is positioned relative to the patient with the first flange member located inside the patient;
the surface is a distal-facing surface;
the first flange member extends around the opening at the distal end;
the cannula further comprises a second flange member that extends at least partially around the opening at the proximal end;
the cannula further comprises a second reflective member on a proximal-facing surface of the second flange member; and
the second reflective member is one of:
a thin flexible member on the second flange member;
a mirror on the second flange member; and
a reflective material painted on the second flange member.

16. A cannula, comprising:
an elongate body extending along a longitudinal axis, the body having an outer surface, a thread arranged on the outer surface configured to contact tissue, a proximal end, a distal end, and a lumen extending through the body between openings at the proximal and distal ends;
a first flange member that extends at least partially around at least one of the openings; and
a first reflective member on a surface of the first flange member;
wherein the elongate body is configured to be advanced distally into a patient;
the first reflective member is a reflective material painted on the first flange member;
the elongate body is configured to be advanced distally into the patient such that the elongate body is positioned relative to the patient with the first flange member located inside the patient;
the surface of the first flange member is a distal-facing surface;
the first flange member extends around the opening at the distal end;
the cannula further comprises a second flange member that extends at least partially around the opening at the proximal end;
the cannula further comprises a second reflective member on a proximal-facing surface of the second flange member; and
the second reflective member is one of:
a thin flexible member on the second flange member;
a mirror on the second flange member; and
a reflective material painted on the second flange member.

Assignees

• Medos Int Sarl

Inventors

• Orphanos Stephen J
• Aarsvold Kirsten H
• Otrando Brian

Classifications

• A61B1/00163 Primary

  Optical arrangements (A61B1/002, A61B1/06 take precedence) · CPC title

• A61B1/00135 Primary

  Oversleeves mounted on the endoscope prior to insertion · CPC title

• A61B1/00089

  Hoods · CPC title

• A61B2017/349

  Trocar with thread on outside · CPC title

• A61B17/3421

  Cannulas · CPC title