IP Library Granted Patent US 11,944,346
Granted Patent B2
US 11,944,346 · App. 16/871,183 · Granted Apr 2, 2024

Optical trocar assembly

Inventor: Rajat R. Rokde (Pune, IN)
Assignee: Covidien LP
A61B17/3423A61B1/00032A61B1/00167A61B1/0607A61B1/0684A61B1/07A61B17/0218A61B17/3421A61B2017/00477A61B2017/00907A61B2017/3454A61B2090/309
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Quick Facts
Patent No.
US 11,944,346
App. No.
16/871,183
Granted
Apr 2, 2024
Kind
B2
Abstract

A cannula assembly configured to receive a surgical instrument therethrough includes an elongated body portion, a housing coupled to a proximal end portion of the elongated body portion, and an annular-shaped light member. The housing defines a longitudinally-extending channel therethrough dimensioned for passage of the surgical instrument. The light member is disposed within the housing and about the channel.

Claims (35)

1. A cannula assembly configured to receive a surgical instrument therethrough, the cannula assembly comprising:

an elongated body portion;

a housing coupled to a proximal end portion of the elongated body portion, the housing defining a longitudinally-extending channel therethrough dimensioned for passage of the surgical instrument;

a light pipe having a proximal end portion received within and attached to the housing, the light pipe extending distally from the housing and disposed in a lumen of the elongated body portion; and

an annular-shaped light member at least partially encircling the channel.

2. The cannula assembly according to claim 1 , wherein the light member is attached to the housing.

3. The cannula assembly according to claim 1 , wherein the housing has an upper surface defining an aperture in communication with the channel, the light member being disposed adjacent the aperture.

4. The cannula assembly according to claim 3 , wherein the upper surface of the housing is optically clear to provide visual access of the light member.

5. The cannula assembly according to claim 1 , wherein the housing is detachable from the proximal end portion of the elongated body portion to allow for the selective coupling of an obturator assembly to the proximal end portion of the elongate body portion.

6. The cannula assembly according to claim 1 , wherein the light pipe is configured to transfer light emitted from the light member to a distal end portion of the elongated body portion.

7. The cannula assembly according to claim 6 , wherein the proximal end portion of the light pipe is disposed adjacent the light member, and the light pipe has a distal end portion disposed adjacent the distal end portion of the elongated body portion.

8. The cannula assembly according to claim 1 , wherein the light member includes a plurality of light-emitting-diodes (LEDs).

9. The cannula assembly according to claim 1 , wherein the light member is disposed within the housing.

10. The cannula assembly according to claim 1 , wherein the proximal end portion of the light pipe has the light member received therein.

11. The cannula assembly according to claim 1 , further comprising a cover intercoupling the proximal end portion of the elongated body portion and the housing.

12. The cannula assembly according to claim 11 , wherein the housing is configured to be detachably coupled to the cover.

13. A visual obturator system comprising:

an obturator assembly including:

an obturator housing assembly; and

an elongated obturator shaft extending distally from the obturator housing assembly, the elongated obturator shaft defining a longitudinally-extending channel dimensioned for passage of a viewing instrument; and

a cannula assembly including:

an elongated body portion;

a housing defining a longitudinally-extending channel therethrough dimensioned for passage of a surgical instrument; and

an annular-shaped light member attached to the housing and disposed about the channel, wherein the obturator housing assembly of the obturator assembly and the housing of the cannula assembly are configured to selectively interchangeably connect to a proximal end portion of the elongated body portion.

14. The visual obturator system according to claim 13 , wherein the cannula assembly further includes a cover configured to detachably couple to the proximal end portion of the elongated body portion, the housing being configured to be detachably coupled to the cover.

15. The visual obturator system according to claim 13 , wherein the cannula assembly further includes a light pipe having a proximal end portion received within and attached to the housing, the light pipe extending distally from the housing and configured for receipt in the elongated body portion.

16. The visual obturator system according to claim 15 , wherein the proximal end portion of the light pipe has the light member received therein.

17. The visual obturator system according to claim 13 , wherein the housing has an upper surface defining an aperture in communication with the channel, the light member being disposed adjacent the aperture.

18. The visual obturator system according to claim 17 , wherein the upper surface of the housing is optically clear to provide visual access of the light member.

19. The visual obturator system according to claim 13 , wherein the light member is disposed within the housing.

20. A cannula assembly configured to receive a surgical instrument therethrough, the cannula assembly comprising:

an elongated body portion;

a housing coupled to a proximal end portion of the elongated body portion, the housing defining a longitudinally-extending channel therethrough dimensioned for passage of the surgical instrument, the housing detachable from the proximal end portion of the elongated body portion to allow for the selective coupling of an obturator assembly to the proximal end portion of the elongate body portion;

a light pipe having a proximal end portion received within and attached to the housing, the light pipe extending distally from the housing and configured for receipt in the elongated body portion; and

an annular-shaped light member at least partially encircling the channel.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 8, 2020
From: ROKDE, RAJAT
To: MEDTRONIC ENGINEERING AND INNOVATION CENTER PRIVATE LIMITED
Reel/Frame 054011/0023 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 8, 2020
From: MEDTRONIC ENGINEERING AND INNOVATION CENTER PRIVATE LIMITED
To: COVIDIEN PRIVATE LIMITED
Reel/Frame 054011/0103 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 8, 2020
From: COVIDIEN PRIVATE LIMITED
To: MEDTRONIC INTERNATIONAL IP GMBH
Reel/Frame 054011/0163 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 8, 2020
From: MEDTRONIC INTERNATIONAL IP GMBH
To: COVIDIEN LP
Reel/Frame 054011/0241 →
Continuity (2)
Continuation 16167625 · Oct 23, 2018
Related Publication 20200268411A1 · Aug 27, 2020