Access System For Endoscopic Operations

• US 20180235656A1
• Filed: 04/20/2018
• Published: 08/23/2018
• Est. Priority Date: 10/08/2015
• Status: Active Grant

• Current Assignee: Karl Storz Se & Co. Kg
• Original Assignee: Karl Storz Se & Co. Kg
• Inventors: Sawalhe, Samir, Hermle, Rainer, Doll, Frank, Rehbein, Stefan, Haffa, Alexander
• Granted Patent: US 10,959,754 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 17/00234 for minimally invasive surgery A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/0218 for minimally invasive surgery A61B17/0281, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/3421 Cannulas
• CPC Class Codes: A61B 17/3423 Access ports, e.g. toroid shape introducers for instruments or hands access sites for liquids A61M39/0247
• CPC Class Codes: A61B 17/3439 with means for changing the inner diameter of the cannula, e.g. expandable A61B17/3423, A61B17/3431 take precedence; catheters A61M25/0662
• CPC Class Codes: A61B 2017/00287 Bags for minimally invasive surgery
• CPC Class Codes: A61B 2017/320024 Morcellators, e.g. having a hollow cutting tube with an annular cutter for morcellating and removing tissue

Abstract

An access system for endoscopic operations includes of a trocar, a cover that is fittable on the trocar and at least one spreading element having a retaining portion and an effector portion, wherein the access system has, between the trocar and the cover in the fitted state, a receiving region for the retaining portion of the at least one spreading element. Furthermore, the access system can include an extraction bag which is expanded by the effector portion of the at least one spreading element

Claims

1-15. -15. (canceled)

16. An access system for endoscopic operations, comprising:

a trocar;

a cover that is fittable on the trocar; and

at least one spreading element having a retaining portion and an effector portion;

wherein the access system has, between the trocar and the cover in a fitted state, a receiving region for the retaining portion of the at least one spreading element;

wherein the receiving region comprises an annular retaining ring; and

wherein the retaining portion of the at least one spreading element has a retaining clip adapted to the annular retaining ring.

17. The access system according to claim 16, wherein the trocar and the cover have a bayonet mount for fitting.

18. The access system according to claim 16, wherein the annular retaining ring has at least one positioning portion adapted to the retaining clip of the at least one spreading element.

19. The access system according to claim 16, wherein the access system has 2 or 3 or 4 or 5 or 6 spreading elements.

20. The access system according to claim 16, wherein the trocar has a fluid feed.

21. An access system for endoscopic operations, consisting of:

a trocar having a trocar sleeve;

a cover that is fittable on the trocar and has a working duct and at least one spreading element;

wherein the working duct extends concentrically within the trocar sleeve in a fitted state;

wherein at least one portion of the at least one spreading element extends within an intermediate space between the trocar sleeve and working duct; and

wherein the at least one spreading element has, at least in portions, a circular cylindrical contour which is adapted to a contour of the trocar sleeve and/or of the working duct.

22. The access system according to claim 21, wherein the access system has 2 or 3 or 4 or 5 or 6 spreading elements.

23. The access system according to claim 21, wherein the access system has a fluid feed.

24. An access system for endoscopic operations, comprising:

a trocar having a trocar sleeve;

a cover that is fittable on the trocar and has a working duct and at least one spreading element;

wherein the working duct extends concentrically within the trocar sleeve in a fitted state;

wherein at least one portion of the at least one spreading element extends within an intermediate space between the trocar sleeve and working duct; and

wherein the at least one spreading element has, at least in portions, a circular cylindrical contour which is adapted to a contour of the trocar sleeve and/or of the working duct.

25. The access system according to claim 24, wherein the access system has 2 or 3 or 4 or 5 or 6 spreading elements.

26. The access system according to claim 24, wherein the access system has a fluid feed.