Valved trocar jacket tube

• US 6,077,288 A
• Filed: 10/09/1998
• Issued: 06/20/2000
• Est. Priority Date: 04/07/1998
• Status: Expired due to Term

• Current Assignee: Hakko Co., Ltd.
• Original Assignee: Hakko Electric Machine Works Company Limited
• Inventors: Shimomura, Kazuyuki, Tamai, Yukihiko
• Primary Examiner(s): Buiz, Michael
• Assistant Examiner(s): NGO, LIEN M
• Application Number:
  US09/169,582
• Time in Patent Office: 620 Days
• Field of Search: 606/185, 606/184, 606/186, 606/170, 604/167, 604/169, 604/245, 604/246, 604/247, 604/248, 604/320, 604/321, 604/323, 604/335, 604/336
• US Class Current: 606/185
• CPC Class Codes: A61B 17/0293 with ring member to support retractor elements
• 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 17/3498 Valves therefor, e.g. flapper valves, slide valves haemostasis valves A61M39/06; check valves A61M39/24
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence
• CPC Class Codes: A61B 2017/3419 Sealing means between cannula and body
• CPC Class Codes: A61B 2017/3486 Balloon

Abstract

Disclosed is a valved trocar jacket tube, in which both ends of a first cylindrical elastic member are secured, one end of a second cylindrical elastic member is attached to one of first and second rings, which are so constructed that when they are rotated relatively in the opposite directions the opening of the first cylindrical elastic member is closed from the opening state, and a fluid container is provided at a predetermined position of the second cylindrical elastic member, which is inflated to have a ring shape by the increase of an inner pressure generated by injection of a fluid. According to this structure, it is possible to provide a valved trocar jacket tube, which can prevent leakage of an inert gas from an abdominal cavity without reducing the operativity during surgery.

Claims

1. A valved trocar jacket tube, comprising:

a first cylindrical elastic member having an opening with a predetermined sectional area;

closing means including a first ring for securing one end of said first cylindrical elastic member and a second ring for securing another end of said first cylindrical elastic member, said first and second rings rotating relatively in the opposite directions respectively for closing said opening from an opened state;

a second cylindrical elastic member, one end of which being attached to one of said first and second rings;

a ring member, which is elastically deformable and provided at another end of said second cylindrical elastic member; and

a fluid container provided at an upper part of an outer side of said second cylindrical elastic member, which is inflated to have a ring shape by the increase of an inner pressure generated by injection of a fluid;

wherein;

said first cylindrical elastic member is positioned outside an incised portion of a diseased part and functions as a valve;

said second cylindrical elastic member is positioned from outside to inside of said incised portion of said diseased part and maintains said incised portion at an opened state;

said ring member is positioned inside said incised portion of said diseased part and engaged with said incised portion of said diseased part; and

said fluid container is positioned outside said incised portion of said diseased part and fits securely said second cylindrical elastic member to side walls of said incised portion of said diseased part.

2. The valved trocar jacket tube, according to claim 1, wherein:

said fluid container is provided on said upper part of said outer side of said second cylindrical elastic member and detachable therefrom.

3. The valved trocar jacket tube, according to claim 1, wherein:

said closing means is connected to another closing means for closing an opening of a third cylindrical elastic member from an opened state.

4. A valved trocar jacket tube, comprises:

a first cylindrical elastic member having an opening with a predetermined sectional area;

closing means including a first ring for securing one end of said first cylindrical elastic member and a second ring for securing another end of said first cylindrical elastic member, said first and second rings rotating relatively in the opposite directions respectively for closing said opening from an opened state;

a second cylindrical elastic member, one end of which being attached to one of said first and second rings; and

a fluid container provided at an upper part of an outer side of said second cylindrical elastic member, which is inflated to have a ring shape by the increase of an inner pressure generated by injection of a fluid;

wherein;

said first cylindrical elastic member is positioned outside an incised portion of a diseased part and functions as a valve;

said second cylindrical elastic member is positioned from outside to inside of said incised portion of said diseased part and maintains said incised portion at an opened state; and

said fluid container is positioned inside of said incised portion said diseased part and fits securely said second cylindrical elastic member to side walls of said incised portion of said diseased part.

5. The valved trocar jacket tube, according to claim 4, wherein:

said fluid container is bonded or fused to said another end of said second cylindrical elastic member.

6. The valved trocar jacket tube, according to claim 4, wherein:

said fluid container is constructed by piling a lower end of said second cylindrical elastic member to have a tube shape and bonding or fusing it to a predetermined portion of said second cylindrical elastic member.

7. The valved trocar jacket tube, according to claim 4, wherein:

said closing means is connected to another closing means for closing an opening of a third cylindrical elastic member from an opened state.