Welch Allyn 88372 User Manual

Cryosurgery System

REF 88372

Operating Manual

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

The Cryosurgery System . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

General Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Scavenging Hose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Directions for Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Care and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Disinfection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Sterilization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Introduction

Thank you for purchasing the Welch Allyn, Inc. Cryosurgery System for
use in your clinic or private practice.

Each system is meticulously handcrafted and thoroughly tested prior to
shipment. Proper care and maintenance ensures a long and useful life.

This Operating Manual is intended to acquaint you with your new Cry­osurgery System, its directions for use, cleaning and storage, and the
necessary safety precautions.

Precautions

Do not store gas cylinders above normal room temperatures.

Use only Medical Grade Nitrous Oxide (N

Do not crimp or tightly bend the gas hose. Coil the hose no tighter than
an 8-inch circle. If a hose is damaged, replace it.

Verify the O-ring is in place at the end of the cryogun prior to installing
a cryotip. Inspect O-ring and replace if cracked or damaged.

Hand tighten all connections. Tools are not necessary.

Turn the gas cylinder valve off before disconnecting the console from
the gas cylinder.

Verify the gas is off at the console before changing tips.

If a cryotip is dropped, inspect for damage and replace as necessary.

This manual is not meant to teach the proper technique or any of the
medical considerations regarding the use of this equipment. Welch
Allyn recommends that prospective users obtain appropriate training
before using this equipment as improper use is potentially hazardous
to the patient and the user. DO NOT use this device without proper
training.

1

O)/Carbon Dioxide (CO2) gas.

2

CAUTION: FEDERAL LAW RESTRICTS THE SALE OF THIS DEVICE TO OR
ON THE ORDER OF A LICENSED MEDICAL PRACTITIONER OR DESIG­NATED AGENT.

WARNING: EXPOSURE TO NITROUS OXIDE (N

O) MAY RESULT IN

2

IMPAIRMENT OF PERFORMANCE, COGNITION, OR DEXTERITY. VENTI­LATE WELL.

IT IS THE USER’S RESPONSIBILITY TO FIT THE EXHAUST HOSE
BETWEEN THE CRYOSURGERY UNIT EXHAUST AND DISPOSAL POINT
TO MINIMIZE NITROUS OXIDE (N

O)/CARBON DIOXIDE (CO2) EXPO-

2

SURE.

The Cryosurgery System

READ THIS ENTIRE MANUAL BEFORE OPERATING
YOUR NEW CRYOSURGERY INSTRUMENT.

The Cryosurgery System is designed for easy assembly and operation.
No tools are necessary.

The system is delivered in an attaché carrying case along with clean­ing plugs, a gas scavenging hose, and a package of replacement “O”
rings. On the end of the cryogun barrel is a tip protector, which is
removed when the cryotip is used and replaced when the cryogun is
not in use.

A 20# N

O (Nitrous Oxide) or CO2 (Carbon Dioxide) gas cylinder is

2

available for the Cryosurgery Unit. Nitrous Oxide/Carbon Dioxide is
used as the refrigerant for the cryogenic process. Use the N

O/CO2

2

only in a well-ventilated area. A 20-ft. scavenging hose is provided to
divert used gas away from the operator. Use the mobile hand cart for
cylinder movement. Do not drag, slide, or roll the cylinder. Store the
cylinders upright and firmly secured to prevent falling or accidentally

2

getting knocked over. Refill the compressed gas cylinders only by qual­ified producers of compressed gases. Do not allow the storage cylinder
temperature to exceed normal room temperatures.

1

2

3

4

5

7

6

No. Description No. Description

1 20# Cylinder 5 Cleaning Plugs and “O” Rings

2 20# Mobile Cart 6 Console

3 Carrying Case 7 Cyrogun

4 Quick Connect

3