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820.181
Device master record.
Each
manufacturer shall maintain device master records (DMR`s). Each manufacturer
shall ensure that each DMR is prepared and approved in accordance with §
820.40. The DMR for each type of device shall include, or refer to the
location of, the following information: (a) Device
specifications including appropriate drawings, composition, formulation,
component specifications, and software specifications; (b) Production
process specifications including the appropriate equipment specifications,
production methods, production procedures, and production environment
specifications; (c) Quality
assurance procedures and specifications including acceptance criteria and the
quality assurance equipment to be used; (d) Packaging
and labeling specifications, including methods and processes used; and (e)
Installation, maintenance, and servicing procedures and methods. Interpretation: Device master record (DMR) is the term used in the
Quality System (QS) regulation for all of the routine documentation required
to manufacture devices that will consistently meet company requirements.
Section 820.3(j) of the QS regulation defines device master record as a
compilation of records containing the procedures and specifications for a
finished device. The detailed requirements for device master records are
contained in section 820.181, as well as throughout the regulation. The definition for design output in 820.3(g) gives
the basis and/or origin of the device master record for all Class II and III
devices as follows: Design output means the results of a design effort
at each design phase and at the end of the total design effort. The finished
design output is the basis for the device master record. The total finished
design output consists of the device, its packaging and labeling, and the
device master record. For some devices, many of the design output
documents are the same as the device master record documents. Other device
output information is used to create a DMR drawing such as for a test or an
inspection procedure. Figure 6.1 shows the close relationship between design
output and the device master record. Section 820.181, Device Master Record, lists some
typical documents in a DMR as follows: The DMR for each type of device shall include, or
refer to the location of, the following information: (a) Device specifications including appropriate
drawings, composition, formulation, component specifications, and software
specifications; (b) Production process specifications including the
appropriate equipment specifications, production methods, production
procedures, and production environment specifications; (c) Quality assurance procedures and specifications
including acceptance criteria and the quality assurance equipment to be used;
(d) Packaging and labeling specifications,
including methods and processes used; and (e) Installation, maintenance, and servicing
procedures and methods. The definition for Design Output 820.3(g) and
requirements for Design Output 820.30(d) do not apply to most Class I
devices. Therefore, the requirements for the DMR for most Class I devices are
in 820.181 Device Master Record. Of course, a manufacturer of Class I devices
may use the design output sections of the GMP as guidance. However, almost all sections of the QS regulation
have requirements related to the device master record. The device master
record contains specifications for the device, accessories, labeling, and
packaging, and contains a full description of how to procure the components
and manufacture the device including specifications for facilities,
environment, and production equipment. In addition to the device
specifications, a device master record contains documents that cover typical
manufacturing activities such as:
Note that the listed activities and records or
documents are required to produce any product medical, industrial, or
consumer. There is nothing special about device master records except the
name! Also, note that in common usage, the term
"device master record" refers to the total record or any of its
individual records. Therefore, the term is singular for the total record,
singular for a single document, and plural for a group of single documents.
The term also may refer to an original record or a copy of a record. Device master records should be technically correct,
contain and/or reflect the approved device and process designs, be under
change control, contain the release or other control date, contain an
approval signature, and be directed toward the intended user. These
requirements are in the QS regulation because the device master record is the
"beginning and end" of a product errors in the device master
record will have a serious impact on the state of control of the
manufacturing operation and may have a serious impact on the safety and
performance of the device. The device master record should be accurate and
complete because the essence of the QS regulation is a quality system based
on designing a device to meet user needs, documenting the design and
production procedures in the device master record and then producing a
finished device that meets the device master record requirements. Thus, the
device master record shall accurately reflect the device intended to be
produced by a manufacturer. Document For Intended Employees The content, style, language, graphics, etc., of
device master records should be directed toward the needs of the intended
employees and, if the record is a specification or text for labeling, it
should be directed toward users. A failure to consider the intended user
leads to confusion and means that the company has not achieved the state of
control intended by the QS regulation. Therefore, applicable records should
be directed toward the needs of procurement, processing, and test/inspection
personnel, rather than the needs of drafting, technical services, or product
development departments. Likewise, installation instructions should be
directed to installers. Labeling is often prepared by the same employees that
draft device master records; and, these employees should also be aware that
labeling shall meet the needs of the user as directed by 21 CFR 809.10, 801.6
and 820.30. In any manufacturing activity such as assembly,
labeling, processing, testing, etc., achieving and maintaining a state of
control is enhanced by
appropriate personnel knowing:
In order for employees to perform a job correctly,
they should know exactly what is to be done and exactly how to do the work.
Section 820.181 requires that what is done be documented in the device master
record. The device master record also contains test and inspection procedures
and data forms that are used to help determine and record what was done. Documents that instruct people how to fabricate,
assemble, mix, label, test, inspect, etc., or how to operate equipment
should:
If a component is changed, the representations on
pictorial/photographic type drawings are no longer correct and may be very
confusing to employees, particularly new employees. The how to manufacture instructions should be
adequate for use by the intended employees and correct for the intended
operation. In the medium to large company, the instructions tend to be
extensive technical (engineering) drawings and written procedures. In any
company, particularly small manufacturers, the work instructions may take
several forms as discussed below.
Documentation may be supported by production aids
such as labeled photographs, video tapes, slide shows, sample assemblies, or
sample finished devices. All of these perform device master record functions
and should be identified, and be current, correct, and approved for the
intended operation. The most commonly used aids are models or samples.
There are two conditions that should be satisfied in order to use these aids.
First, a written specification for the sample shall be contained in the
device master record. This specification, of course, may be the same as the
specification for the assembly or finished device to be manufactured. This
specification shall be subject to a formal change control procedure. Even
though a model is available, the specification is needed for present and
future product development, and for production control purposes. Second, the
sample should:
A card or tag as shown in the exhibits or an
equivalent card may be used to identify and help control the use of samples
of assemblies or finished devices. Such tags are usually covered by a clear
plastic pouch and attached to the model or sample. Samples and other aids such as photographs are
subject to normal wear and tear in a production environment. Therefore, such
aids should be adequately protected by a suitable means such as being located
in a protected area, or covered by a protective pouch or container.
Production aids should be periodically audited to make sure they continue to
be suitable for the intended use. Section 820.100 contains requirements for
corrective action. Corrective action may involve the use of samples, changes
to the samples, or changes in the control of the samples. Adequate Information Although a manufacturer tries to document for the
intended employees, there is a need to audit periodically to see how well the
goal is being met. There are various means of determining if information in
the device master record, production tools, and other production elements are
adequate for a given operation and associated employees. These include
analyzing the:
If any of these factors persist and are out of line
with industry norms or with the previous production experience, then the
manufacturer should take corrective action. Management shall review the
quality system as directed by 820.20 and, thus, be aware of device quality
problems or quality system problems such as listed above. The corrective
action may include changes in supervision or documentation, adding new documentation,
modifying the design, using different tools, modifying the environment, etc. Preparation and Signatures A separate device master record is required for
each type or family of devices. Also, a separate device master record may be
needed for accessories to devices when these are distributed separately for
health care purposes. Such accessories are considered to be finished devices.
In practice, if the device and accessories are made by the same manufacturer,
the device master record for the accessory may be incorporated into the
device master record for the primary device. Within a family of devices, variations in the
family may be handled by dash number extensions on drawing and procedure
numbers. Usually, a top assembly or other major drawing contains a table/list
of the devices in the family and lists the variable parameters for each
member of the family. Section 820.40 of the QS regulation requires that
an individual(s) be designated to: review, date, and approve all documents
required by the QS regulation including the device master record and
authorize changes. An individual(s) with the necessary technical training and
experience shall be designated to prepare and control device master records.
In addition to requiring approval signatures on device master records, the QS
regulation requires individual identification for a few other activities. For
convenience, these activities along with the section numbers that require
them are listed in Table 8.1. Table 8.1 GMP ACTIVITIES REQUIRING INDIVIDUAL
IDENTIFICATION
The list is self explanatory except for audit
certification. When a manufacturer certifies in writing to FDA that quality
system audits have been performed, the certification letter is signed by
management having responsibility for the matters audited. Also note that the
records in 820.70, 820.72, 820.80, 820.90(b), 820.120(b) and 820.160 are not
part of the device master record but, instead, are part of the device history
record (DHR). Records in 820.198(b) are part of the complaint files. If a record that requires a signature is maintained
on a computer, it is best if the designated individual(s) maintains an uptodate
signed printout of the record. Where it is impracticable to maintain current
printouts, computer compatible identifiers may be used in lieu of signatures
as long as there are adequate controls to prevent improper use, proper
employee identification, inaccurate data input, or other inappropriate
activity. If identifiers such as coded badges and equipment keys are not
controlled (i.e., not restricted to designated employees), then these will
not meet applicable GMP "signature" requirements. Location of Records Device master records shall be stored at the
manufacturing establishment or at other locations (820.180) that are
reasonably accessible to company employees responsible for the manufacturing
activities and accessible to FDA investigators. Appropriate records may be
maintained in computer data banks if the records are protected, change
controlled, and readily accessible for use by responsible employees at all
relevant facilities. It is acceptable for a manufacturer to maintain records
on microfilm and discard the original hard copies. Microfiche and/or
microfilm reductions may be used in lieu of original record retention if the
following conditions are met.
If the reproduction process results in a copy that
does not reveal changes or additions to the original record, the original
should be retained. In this situation, the reproduced copy and any image
shown on a viewing screen should note any alteration from the original and
indicate that the original record is available. By maintaining the device master record, complaints
and other records required by the QS regulation at the manufacturing
establishment or other reasonably accessible location, responsible officials
of a company can exercise control and accountability over the entire design,
manufacturing, and post marketing activities and, thereby, maximize the
probability that the finished device conforms to its design specifications.
This GMP requirement helps assure that responsible officials at the
manufacturing establishment have ready access to those documents essential
for producing devices and for conducting selfinspections, complaint
investigations, failure analyses, audits, and corrective action. The device master record is a single source
document or file. Portions of this file may be kept in various locations. A
device master record may exist as:
These documents shall contain the latest DMR
revisions, be signed, and be dated to show they have been checked for
adequacy and approved for use (820.30, 820.40 and 820.181). The QS regulation allows use of reference lists as
a means to reduce the duplication of records, particularly duplication of
general documents such as standard operating procedures (SOP's). General
SOP's (not directly related to a product or process) however should be made a
part of the quality system record (QSR) (820.186). Use of a reference list also allows filing of
device master record documents at several convenient locations. If the device
master record contains a list of documentation, the actual documents shall be
available for employee use and FDA inspection at the manufacturing site or
other reasonably accessible locations. As noted above, this is a key and
important GMP requirement. Typical locations of various device master records
are shown in Table 8.2. When performing an inspection of a company, FDA
investigators shall have access to actual records for review and copying
during reasonable business hours. FDA investigators review these records to
determine if a manufacturer is complying with the QS regulation and with the
Food, Drug, and Cosmetic Act. Records deemed confidential by a manufacturer
should be marked to aid FDA in determining whether or not specific
information may be disclosed under the Freedom of Information Act. However,
routinely stamping every document as "Confidential" defeats the purpose
of requesting extra care be taken to protect a specific document or set of
documents. Table 8.2 LOCATION OF DEVICE MASTER RECORDS Typical Locations of Documents
SOP = Standard Operating Procedure Record Retention The QS regulation in section 820.180(b) requires
that all records pertaining to a device shall be retained for a period of
time equivalent to the design and expected life of the device, but in no case
less than two years from the date of release for commercial distribution by
the manufacturer. Manufacturers of long life products should make prudent
decisions as to how long to keep records. For example, there may be no value in keeping records for long life
devices such as stretchers, surgical tools, containers, etc., forever if the
probability is low that any post distribution remedial activity will occur.
For devices that require repair or capital equipment devices that probably
will be updated, appropriate records should be retained to support these repairs
or modifications. Device master record requirements apply to devices
modified in the field by the manufacturer's representatives after the devices
are commercially distributed. Modification of a device is manufacturing and
the QS regulation covers all manufacturing of devices where the result is
placed into commercial distribution. In any case, a manufacturer should be
prepared to provide a rationale for its decision to discontinue
record-keeping. DEVICE MASTER RECORD CONTENTS As discussed above, the device master record shows
and/or tells employees how to perform specific functions related to the
production of a device. The QS regulation does not dictate how this
information is to be arranged or filed in the device master record and
quality system record except that it shall be readily accessible. Because
each device master record and quality system record contain many documents,
an index of each is usually needed. Device Specification There may be many specifications in the device
master record. One of these is the device specification. A device or product
specification is a specific document in the device master record that briefly
describes and gives all important details of the external characteristics of
a device. The product specification may also contain some internal
characteristics of the device that are important to the manufacturer and/or
the users. The finished device specification is derived from the design input
specifications in 820.30. For some devices, many of the external characteristics
such as temperature tolerance are related to the environment in which the
devices will function properly. For some in vitro products, the package
insert is used by some manufacturers as the product specification for
marketing purposes. Generally a product specification will contain the
device's:
Table 8.3 contains a list of characteristics that
often appear in product specifications; however, note that not all of the
listed items will appear in the product specification for a given device. In addition to defining and describing a device, a
product specification is a communication tool which, if used in a timely
manner, can help achieve some important results. First, it helps assure that
everyone is talking about the same device and working toward the same
objectives with respect to safety, effectiveness, human factors,
configuration, labeling, packaging, processing, finished device acceptance,
etc. Ultimately, the device specification or a condensed
version of it should be used in catalogs, or other product documentation, to
aid communication between salespersons and customers. If the marketing
department uses the product specifications when preparing advertisements and
catalog sheets, public relations with users will be enhanced because the
marketing documents are based on proven scientific safety and performance
claims for the actual device. The user has an opportunity to read the
technical specifications of the item actually being offered for sale. Thus the use of device product specifications will
result in:
A sample product specification for a portable
defibrillator is in the exhibits at the end of this chapter. This
specification is long and detailed because it is a combined product and test
specification, and because it is for a complex device. Specific Documents Specific documents are drawings, procedures, labels,
data forms, etc., for a specific product or family of products. Product
specific documents are almost always part of the device master record. The
originals of specific documents are usually located in files in engineering
or technical service departments. In most manufacturers, specific documents
contain no general information; however, they often refer to general
documents. (A list of specific and general documents is exhibited later in
this chapter.) The number of specific documents for a given product line may
range from about 10 to several hundred. If large numbers of documents are
needed, an index is usually needed to help locate them, particularly for
personnel that do not work in the drafting department or in technical
services. Records for In Vitro Diagnostic Products The main differences between device master records
for chemical based in vitro products and for electromechanical products, such
as instruments and artificial kidneys, is terminology and the relatively
extensive use of written processing procedures and status reports for in
vitro diagnostic products rather than a few assembly drawings and
test/inspection reports. For example, device master records for chemical based
devices would contain a manufacturing section dealing with areas such as
solution preparation and filling, whereas manufacturing sections for
electromechanical products would cover operations such as assembly. Status
records for weighing, mixing, filling, etc., are used for general control of
in vitro products. Status reports are also used because it is often difficult
to determine the status of inprocess in vitro products by looking at them
the opposite is usually true for most hardware devices. Records for in vitro
devices also shall contain control data that allows components and kits to be
traced [809.10(a)(9), etc.].
QUALITY SYSTEM RECORD DOCUMENTS Quality system record (QSR) (820.186) or general
documents are used for many activities that are essential to operating a
manufacturing establishment these are not specific to any given product
even if the company produces only one product. Thus, the quality system
record includes general documents such as standard operating procedures
(SOP's) and standard quality assurance procedures (QAP's). If the company
added another product line, the basic content of these documents would
undergo none or only minor changes. In a typical manufacturing operation, general QSR,
SOP, and QAP documents may include the following:
The above list is not all inclusive. Medium to large
companies tend to have many of these general documents to guide management in
maintaining consistent operations. A very small company may have only the
most essential and appropriate of these documents such as procedures for
design controls, drawing numbering system, change control, employee training,
use of hazardous materials, etc. The original copy of each general procedure is
filed in the department specified by management as having responsibility for
maintaining that procedure, or it is filed in an automated system with access
by the designated departments. The working copies of the above procedures are
usually located in SOP manuals and QA manuals. The procedures are usually
numbered and arranged in a logical order by topic. The QS regulation does not
require manufacturers to keep quality system record documents in SOP or QA
manuals; however, the experience of many industries has demonstrated that
such manuals are worthwhile if they are kept current and contain only the
real working procedures. WRITTEN PROCEDURES Many sections of the QS regulation require written
procedures for instructions in performing various quality system, design
product acceptance, QA, and manufacturing tasks. Certain devices such as in
vitro products, because of the nature of the manufacturing operations, tend
to have a relatively large number of written procedures. Written procedures are used for quality system
audits, product development, manufacturing, post marketing activities, etc.,
to:
In large manufacturing facilities involving many
operations and people of various skill levels, many written procedures are
usually necessary. In a small manufacturer, communication lines are usually
short, few people are involved, and management is readily available to
provide guidance, so that the need for written procedures is usually less
than for a larger manufacturer. A manufacturer, particularly a small manufacturer,
may conclude that GMP requirements for written procedures are not applicable
for a particular operation. Although the number of written procedures may
vary, all manufacturers are required to maintain a device master record (820.181)
for each type or family of devices they produce. Often training and work experience alone or
combined with drawings, photographs, and models are valid substitutes for
written procedures. For example, machinists are typically skilled personnel
who fabricate components and finished devices using dimensional drawings for
guidance instead of written procedures. The company and FDA investigator will
evaluate each situation based on the training and knowledge of the operators
and the control needed to meet device specifications. Typically, a written
procedure is not necessary when:
Written procedures and associated history or status
records, however, are often needed for activities where there is no change,
such as color, texture, or form, to indicate that the activity has been
performed correctly. Manufacturers should determine that they meet all
GMP requirements and, if necessary, exceed them in order to produce finished
devices that meet device master record specifications because FDA insists
that manufacturers meet their quality claims [FD&C Act, section 501(c)].
Achieving this required state of control may require fewer or more written procedures than
specifically required by the QS regulation. FDA does not insist that a
manufacturer generate records that do not contribute to assuring conformance
to specifications. Developing Procedures Developing written procedures is relatively labor
intensive and time consuming, which may lead to use of "back of the
envelope" notes instead of formal procedures. Likewise, changing these
procedures is time consuming, which may lead to delays or forgetting to make
the changes. Drafting or changing written procedures is also prone to errors.
Therefore, manufacturers are encouraged to use computers and low cost
printers as word processors to aid in writing and changing procedures. With
the use of computers, these tasks become easier thereby increasing the probability
that they will be performed correctly and when needed. Computers can also be
used for generating and maintaining device master record indices and
complaint files, and performing a host of other GMP related activities. There is a method for developing procedures that
will result in short, clear procedures that help solve real problems. The first two steps are:
Events that point to a problem are excessive
rework, employee confusion, customer complaints, recalls, etc. These
"pointers," however, may not be the real problem. The real problem
may be inadequate design, components, equipment, maintenance, operational
techniques, documentation, environment, etc. The real problem should be
identified before it can be solved. A written procedure may or may not be
needed to help solve the problem. The real problem can be identified by careful
analysis of:
Operational analysis is aided by flow-charting
which is a step by step chart of the minute details of the operation. Thus,
a flow chart is much more detailed than a QA audit report and is very helpful
in determining what is actually happening in a particular manufacturing
operation. This knowledge may lead to a solution of manufacturing and quality
problems. An example of a flow chart appears in the exhibit section of
chapter 10. From a company quality system, interface, and
personnel management viewpoint, the problem, the reason for flowcharting the
given activity, etc., should be discussed with affected personnel. Their
input should be requested with respect to identifying and solving the real
problem. By using the information presented by the flowchart and the
experience gained while producing the chart, the QA auditor is better able
to:
Content of Procedures Written procedures are widely used and industry
experience has shown that these should contain the following items:
The effective date may be the same as the approval
date. Also, the effective date may appear on a separate document such as an
engineering change order (ECO) form. The main body of the procedure should
cover, as appropriate:
Particularly for the new employee, it is important
for the procedure to state the reason for performing a function and the
reason it is to be performed in a certain way. Background information such as
this helps the employee to understand an assignment and remember how to
perform it. For example, when working on static sensitive integrated circuits
that are easily damaged by electrostatic potentials, unskilled employees need
to understand why they have to be grounded, work on grounded mats and,
especially, why they are not allowed to wear certain fabrics while at work.
Likewise, employees working in environmentally controlled, clean
manufacturing areas need to be told about invisible microbes and
particulates, and that humans are the major source of these unwelcome
contaminates. If so informed, employees are more likely to follow the
operational procedures for working in controlled areas. The task description in each procedure should cover
appropriate details such as:
If the procedure being developed, for example,
covers change control, the procedure should also cover related activities
such as changes to labeling. Consider a change to a device where an analog
meter is replaced with a digital meter obviously the instruction manual
(labeling) and service manual also need to be modified. Otherwise the
finished device:
After the procedure is drafted, if appropriate, it
should be reviewed with the affected personnel before it is approved and
implemented. During the initial implementation, the use of the procedure
should be monitored. Then, based on actual experience in using the procedure,
if necessary, it should be modified to more exactly meet the need of the
operation or process. CHANGE CONTROL The QS regulation in section 820.181 by reference
to 820.40 requires that any changes to the device master record be authorized by the signature
of a designated individual(s). Change control requirements also appear
throughout the QS regulation. The control of changes to devices, processes,
and the associated device master records is one of the most important
elements of a quality assurance system. The requirements for a successful
change control system are so extensive that the entire next chapter of this
manual is devoted to changes and associated procedures. Reference: www.FDA.gov The information provided here is for "public consumption" and is open to interpretation. MedicalDeviceSchool.com is not responsible for the content or the accuracy of the information. For all official interpretation and accuracy we ask that you consult the FDA's website directly and that you consult with your legal and regulatory experts on all matters of interpretation. |
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