Modified trocar and methods of use

• US 6,589,211 B1
• Filed: 09/03/1999
• Issued: 07/08/2003
• Est. Priority Date: 04/28/1995
• Status: Expired due to Term

• Current Assignee: Cathel Macleod
• Original Assignee: Cathel Macleod
• Inventors: MacLeod, Cathel
• Primary Examiner(s): MENDEZ, MANUEL A
• Application Number:
  US09/390,053
• Time in Patent Office: 1,404 Days
• Field of Search: 604/164.01, 604/164.04, 604/164.09, 604/166.01, 604/256, 604/264, 600/198, 600/185
• US Class Current: 604/164.06
• 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 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• 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 17/3423 Access ports, e.g. toroid shape introducers for instruments or hands access sites for liquids A61M39/0247
• CPC Class Codes: A61B 17/3462 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 Class Codes: A61B 2017/00659 located only on one side of the opening
• CPC Class Codes: A61B 2017/3419 Sealing means between cannula and body
• CPC Class Codes: A61B 2017/3482 inside
• CPC Class Codes: A61B 2017/3492 against the outside of the body
• CPC Class Codes: A61B 42/00 Surgical gloves; Finger-stalls specially adapted for surgery; Devices for handling or treatment thereof
• CPC Class Codes: A61B 42/10 Surgical gloves
• CPC Class Codes: A61B 90/40 Apparatus fixed or close to patients specially adapted for providing an aseptic surgical environment
• CPC Class Codes: A61M 25/02 Holding devices, e.g. on the body

Abstract

A modified trocar system to assist in surgical procedures. In one embodiment, the system is designed to assist in lifting lift a body wall in order to perform surgical procedures within the body cavity without establishing insufflation. The flanged trocar embodiment includes an extended flange forming a portion of the trocar body wall that may be inserted through the incision and deployed against either the interior surface of the body wall, or the interior surface of a protective sealing ring. A lifting mechanism forming a portion of the upper part of the flanged trocar is used in conjunction with the extended flange to enable the surgeon to draw the retained trocar upward in order to provide additional access to the body cavity under the tented body wall. In a more general embodiment of the invention, the modified trocar is directed through an existing incision and is used in an inward-to-outward manner to create a second smaller incision. The second smaller incision is designed to enable the deployment of some operating equipment or attachment device. Larger equipment may then be deployed through the larger first incision and coupled to the unit inserted into the smaller incision. In this way, a variety of manipulations may take place within the body cavity with minimal incision sizes and reduced traffic into and out of the incisions.

Claims

1. A surgical trocar system for use in performing surgical techniques, the trocar system comprising:

a. a trocar insertable into a first incision of a body wall, said trocar having a first end and a second end, wherein said second end includes a sharp terminus capable of making a second incision in the body wall, and wherein said second incision is smaller than said first incision;

b. a manipulation structure insertable into said second incision, wherein said manipulation structure has a manipulation end designed to be deployed external to the body cavity, and a coupling end designed to be insertable through said second incision into said body cavity; and

c. a deployment structure designed to be detachably coupled to said coupling end of said manipulation structure, wherein said deployment structure is designed to be inserted through a first incision into the body cavity.

2. The trocar system as claimed in claim 1 wherein said deployment structure is rotatable.

3. The trocar system as claimed in claim 2 wherein said deployment structure includes a cautery device and a retractor device coupled thereto.

4. The trocar system as claimed in claim 1 wherein said deployment structure includes a cautery device detachably affixed thereto.

5. The trocar system as claimed in claim 1 further comprising at least one operating device mounted to said deployment structure.

6. A surgical instrument comprising:

a manipulation structure having a manipulation end designed to be deployed external to a body cavity and a coupling end designed to be inserted into a body cavity; and

a deployment structure detachably coupled to said coupling end of said manipulation structure, wherein said coupling end has smaller cross-sectional dimensions than said deployment structure so as to be able to be inserted into an incision that is smaller than said deployment structure, and wherein said deployment structure is designed to be introduced into a body cavity through a larger incision and detachably coupled to said coupling end of said manipulation structure within said body cavity.

7. The surgical instrument as claimed in claim 6 wherein said deployment structure is rotatable about said coupling end of said manipulation structure.

8. The surgical instrument as claimed in claim 6 further comprising at least one operating device mounted to said deployment structure.

9. The surgical instrument as claimed in claim 6 further comprising a plurality of operating devices mounted to said deployment structure.

10. The surgical instrument as claimed in claim 9 wherein said plurality of operating devices includes a cautery device and a retractor.