Insertion assisting tool for endoscope

• US 8,088,063 B2
• Filed: 12/02/2004
• Issued: 01/03/2012
• Est. Priority Date: 12/05/2003
• Status: Expired due to Fees

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Inventors: Fujikura, Tetsuya, Kawano, Hirotaka
• Primary Examiner(s): Nguyen, Anhtuan
• Assistant Examiner(s): Nia, Alireza
• Application Number:
  US11/001,181
• Publication Number:
  US 20050124856A1
• Time in Patent Office: 2,588 Days
• Field of Search: 600/114, 600/115, 600/116, 600/121, 600/125, 600/136, 600/101, 604/21, 604/22, 604/27, 604/101.04, 604/156, 604/157, 604/158, 604/159, 604/160, 604/161, 604/162, 604/163, 604/164.1, 604/164.09, 604/164.11, 604/165, 604/166, 604/167, 604/167.06, 604/169, 604/170, 604/171, 604/166.01, 604/174, 604/264, 604/280, 604/284, 604/167.01, 604/167.02, 604/167.03, 604/167.04, 604/167.05, 604/172, 604/256, 604/95.04
• US Class Current: 600/114
• CPC Class Codes: A61B 17/3415 for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters A61B17/3417 takes precedence; body piercing catheter guide needles A61M25/06
• 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 17/3431 being collapsible, e.g. made of thin flexible material A61B17/3423 takes precedence
• CPC Class Codes: A61M 25/0662 Guide tubes
• CPC Class Codes: A61M 25/10 Balloon catheters A61M25/0125 takes precedence; embolectomy A61B17/22032; retractors A61B17/02; inflatable balloons for placing stents or stent-grafts A61F2/958 ; stomach balloons for treatment of obesity A61F5/0003; oesophagal tubes A61J15/00

Abstract

An insertion assisting tool for an endoscope into which an insertion section of the endoscope is inserted from a base end portion side, comprising:

• • a fluid sealing device which seals a space between a base end part of the insertion assisting tool and the endoscope insertion section, the space being formed while the insertion section of the endoscope is inserted into the base end portion side.

Claims

1. An insertion assisting tool for an endoscope into which an insertion section of the endoscope is inserted, comprising:

a liquid storing part formed at a base end part side of the insertion assisting tool;

a suction device attached to the liquid storing part of the insertion assisting tool;

a liquid absorbing member housed in the liquid storing part of the insertion assisting tool, the liquid absorbing member having a surface which can directly contact liquid stored in the liquid storing part to absorb liquid received from a body cavity inside the liquid storing part into the liquid absorbing member such that the liquid is held in the liquid absorbing member, and the liquid storing part is detachably attached to an insertion assisting tool body, wherein

the suction device communicates with an interior of the liquid storing part and removes the liquid stored in the liquid storing part,

the insertion section has a flexible part,

the liquid absorbing member is formed into at least one of a donut shape and a substantially cylindrical shape,

the insertion section is inserted through a hollow part of the liquid absorbing member, and

an inner diameter of the hollow part through the liquid absorbing member is larger than an outer diameter of the flexible part along an entire length of the hollow part of the liquid absorbing member such that the insertion section is not restricted by the liquid absorbing member when inserting the insertion section into the hollow part of the liquid absorbing member,

wherein the liquid storing part is distal to a gripping part and proximal to a tube body on the base end part of the insertion assisting tool, and the liquid storing part is formed into a spherical shape which includes an arc-shaped recessed portion inside the liquid storing part.

2. The insertion assisting tool for an endoscope of claim 1, further including a liquid intake port in structural communication with a recess formed between the liquid storing part and the liquid absorbing member, wherein the liquid intake port is connected to the suction device.

3. The insertion assisting tool for an endoscope of claim 1, further including a balloon air port connected to the insertion assisting tool.

4. The insertion assisting tool for an endoscope of claim 3, wherein a distal end of the insertion assisting tool has a tapered end portion.

5. The insertion assisting tool for an endoscope of claim 4, further including a bulging portion between the tapered end portion and the liquid storing part.

6. The insertion assisting tool for an endoscope of claim 5, wherein the balloon air port is connected to the bulging portion.

7. The insertion assisting tool for an endoscope according to claim 1, wherein the liquid absorbing member holding the liquid is configured to be taken out of the liquid storing part and exchanged with a new liquid absorbing member.

8. The insertion assisting tool for an endoscope according to claim 7, wherein the liquid storing part includes an opening for opening the liquid storing part, and a cap detachably fitted to the opening to seal the liquid storing part, and

wherein the liquid absorbing member is configured to be exchanged through the opening by removing the cap.

9. The insertion assisting tool for an endoscope according to claim 1, wherein the liquid absorbing member has a split formed therein.

10. The insertion assisting tool for an endoscope of claim 1, wherein the inner diameter of the hollow part through the liquid absorbing member is larger than the outer diameter of the flexible part without the insertion section being inserted in the liquid absorbing member.

11. The insertion assisting tool for an endoscope of claim 1, wherein the insertion section is in direct contact with the liquid absorbing member.

12. The insertion assisting tool for an endoscope of claim 1, wherein the liquid absorbing member is formed into a donut shape and is housed in the recessed portion.