Treatment accessory for an endoscope

• US 6,210,378 B1
• Filed: 08/06/1999
• Issued: 04/03/2001
• Est. Priority Date: 07/09/1996
• Status: Expired due to Fees

• Current Assignee: Teruo Ouchi
• Original Assignee: Teruo Ouchi
• Inventors: Ouchi, Teruo
• Primary Examiner(s): YASKO JR, JOHN D
• Application Number:
  US09/369,353
• Time in Patent Office: 606 Days
• Field of Search: 215/247, 215/307, 215/355, 215/DIG. 3, 220/229, 220/254, 600/154, 600/104, 604/167, 604/256
• US Class Current: 604/264
• CPC Class Codes: A61B 17/3478 Endoscopic needles, e.g. for infusion biopsy needles A61B10/0233; catheters with injection needles A61M25/0067
• CPC Class Codes: A61B 2017/22072 with an instrument channel, e.g. for replacing one instrument by the other
• CPC Class Codes: A61B 2017/22077 with a part piercing the tissue A61B2017/22044 takes precedence
• CPC Class Codes: A61B 2017/320084 Irrigation sleeves
• CPC Class Codes: A61M 2025/0089 Single injection needle protruding axially, i.e. along the longitudinal axis of the catheter, from the distal tip
• CPC Class Codes: A61M 2025/0096 being laterally outward extensions or tools, e.g. hooks or fibres
• CPC Class Codes: A61M 25/0041 pre-formed, e.g. specially adapted to fit with the anatomy of body channels urethral catheters A61F2/04
• CPC Class Codes: A61M 25/0068 Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
• CPC Class Codes: A61M 25/0069 Tip not integral with tube
• CPC Class Codes: A61M 25/008 Strength or flexibility characteristics of the catheter tip
• CPC Class Codes: A61M 25/0084 being one or more injection needles
• CPC Class Codes: A61M 25/06 Body-piercing guide needles or the like

Abstract

An injector instrument and a forceps tap for use with an endoscope. The injector instrument is provided with at least one needle formed of a synthetic resin and is further provided with a variety of stopper devices which limit the amount that the needle can extend from the endoscope. The injector instrument may be formed having a curved or easy-to-bend portion. The forceps tap is provided at the entrance to a forceps channel of the endoscope to accommodate at lease two injector instruments or other treatment accessories such that the treatment accessories can be inserted in a single forceps channel and such that substances (such as internal fluids from a human cavity) are held inside the forceps channel.

Claims

1. A forceps tap in combination with an endoscope, said forceps tap closing an end of a forceps channel of said endoscope, said forceps tap comprising:

an upper surface, at least two treatment accessory guide portions provided at said upper surface of said forceps tap, adjacent ones of said at least two guide portions being separated by a portion of said forceps tap; and

an opening for receiving a treatment accessory located beneath each of said at least two guide portions.

2. The combination of the forceps tap and endoscope according to claim 1, wherein a single slit forms each of said openings.

3. The combination of the forceps tap and endoscope according to claim 1, wherein each of said openings is a slit.

4. The combination of the forceps tap and endoscope according to claim 2, wherein one of said openings is a slit and another of said openings is a hole.

5. The combination of the forceps tap and endoscope according to claim 1, wherein said forceps tap includes a separate packing containing said openings, said separate packing being located beneath said guide portions.

6. The combination of the forceps tap and endoscope according to claim 1, wherein said at least two treatment accessory guide portions include at least two concave portions respectively formed on said upper surface, a central longitudinal axis of each of said concave portions inclining with respect to a central longitudinal axis of said forceps tap.