Anoscope

Patent metadata

Field	Value
Publication number	US-9636010-B2
Application number	US-201514920128-A
Country	US
Kind code	B2
Filing date	Oct 22, 2015
Priority date	Dec 9, 2008
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

An anoscope kit includes an anoscope having a plurality of spaced apart fingers having free ends and a dilator removably positionable within the anoscope to aid insertion of the anoscope. The dilator has a proximal region, an intermediate region and a distal region. The distal region includes an enlarged distal head. A ramped surface extends from the enlarged distal head toward the intermediate region. The intermediate region has an outer surface to contact the fingers of the dilator.

First claim

The invention claimed is:

1. A surgical system, comprising:
an anoscope defining a central passageway having a central longitudinal axis and including a plurality of spaced apart fingers, each finger of the plurality of spaced apart fingers including:
an inner surface facing and disposed parallel with the central longitudinal axis;
an outer surface disposed on an opposite side of the finger as the inner surface; and
a distal tip having a surface extending from the inner surface to the outer surface that tapers away from the central longitudinal axis in a distal direction; and

a dilator configured to be received through the central passageway and to abut the inner surface, the dilator having a surface positioned to be in abutment with the surface of the distal tip of each finger of the anoscope upon receipt of the dilator in the central passageway of the anoscope.

2. The surgical system of claim 1 , wherein the surface of the distal tip of each finger is flat.

3. The surgical system of claim 1 , wherein adjacent fingers of the plurality of spaced apart fingers define gaps, each gap extending longitudinally from a proximal end of the anoscope to the distal tip of each respective finger of the plurality of spaced apart fingers.

4. The surgical system of claim 1 , wherein the plurality of spaced apart fingers is configured to flex outwardly relative to the central longitudinal axis upon receipt of the dilator within the anoscope.

5. The surgical system of claim 1 , wherein the surface of the dilator is cone-shaped.

6. The surgical system of claim 1 , wherein the surface of the dilator tapers toward a central longitudinal axis of the dilator in a proximal direction.

7. The surgical system of claim 6 , wherein the dilator further includes:
an intermediate portion; and
an enlarged distal head disposed distally of the intermediate portion, wherein the surface of the dilator is a transition surface interposed between the intermediate portion and the enlarged distal head.

8. An anoscope defining a central longitudinal axis and comprising:
a flange configured to prevent full insertion of the anoscope into an anal canal; and
a plurality of spaced apart fingers extending distally from the flange, each finger of the plurality of spaced apart fingers including:
an inner surface facing and disposed parallel with the central longitudinal axis;
an outer surface disposed radially outward of the inner surface and facing radially away from the central longitudinal axis; and
a distal tip having a surface extending from the inner surface to the outer surface that tapers away from the central longitudinal axis in a distal direction.

9. The anoscope of claim 8 , wherein the surface of the distal tip of each finger is flat.

10. The anoscope of claim 8 , wherein adjacent fingers of the plurality of spaced apart fingers define gaps, each gap extending longitudinally from the flange to the distal tip of each respective finger of the plurality of spaced apart fingers.

11. The anoscope of claim 8 , wherein the plurality of spaced apart fingers is configured to flex outwardly relative to the central longitudinal axis upon receipt of a dilator within the anoscope.

12. The anoscope of claim 8 , wherein the flange is configured to receive a dilator.

Assignees

• Covidien Lp

Inventors

• Wenchell Thomas

Classifications

• A61B1/0008

  characterised by distal tip features · CPC title

• A61B17/3439

  with means for changing the inner diameter of the cannula, e.g. expandable (A61B17/3423, A61B17/3431 take precedence; catheters A61M25/0662) · CPC title

• A61B1/31 Primary

  for the rectum, e.g. proctoscopes, sigmoidoscopes {, colonoscopes} · CPC title

• A61B2017/3452

  for the rectum, e.g. for hemorrhoid surgery · CPC title

• A61B1/00154

  using guiding arrangements for insertion · CPC title