Medtronic 3058 User Manual

InterStim® Therapy
InterStim® II Model 3058 Neurostimulator InterStim
Implant manual
®
Model 3023 Neurostimulator
3058 3023
2006 (3058) 1995 (3023)
Explanation of symbols on product or package labeling
STERILIZE
2
XXX °F
XX °C
-XX °F
-XX °C
Open here
Do not reuse
EO
STERILE
Sterilized using ethylene oxide
Use by
Serial number
Do not use if package is damaged
Conformité Européenne (European Conformity). This symbol means that the device fully complies with AIMD Directive 90/385/EEC (NB 0123).
Date of Manufacture
Consult instructions for use
Do not resterilize
Temperature limitation
Manufacturer
REP
EC
Authorized representative in the Europe2016an community
For USA audiences only
InterStim Therapy 2016-06-01 English 1
Medtronic, InterStim, and SoftStart/Stop are trademarks of Medtronic, Inc., registered in the U.S. and other countries.
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Table of contents
Introduction 5
Device description 5 Package contents 5 Patient registration and identification card 5
Device specifications 5
X-Ray identification 8
Instructions for use: Model 3058 9
Verifying neurostimulator operation 9 Creating a pocket for the Model 3058 Neurostimulator 9 Connecting the lead to the Model 3058 Neurostimulator 10 Implanting the Model 3058 Neurostimulator 13 Completing the implant procedure 14 Replacing the Model 3058 Neurostimulator 14 Device description 15 Package contents 15 Patient registration and identification card 15
Device specifications 15
X-Ray identification 18
Instructions for use: Model 3023 19
Verifying neurostimulator operation 19 Creating a pocket for the Model 3023 Neurostimulator 19 Connecting the extension to the Model 3023 Neurostimulator 20
• Refer to the appropriate Information for Prescribers (IFP) booklet for contraindications, warnings, precautions, adverse events summary, individualization of treatment, patient selection, use in specific populations, resterilization, and component disposal.
• Refer to the Indications Insert for indications and related information.
• Refer to the System Overview and Compatibility Insert for information regarding device compatibility.
Note: Some product models described in this manual may not be available in all geographies.
Refer to the Clinical Summary for information on the clinical study results for
InterStim Therapy and for a complete summary of adverse events.
Refer to the Limited Warranty and Special Notice Insert for warranty information.
• Refer to the System Eligibility, Battery Longevity, Specifications reference manual for neurostimulator selection, battery longevity calculations, and specific neurostimulator specifications.
InterStim Therapy 2016-06-01 English 3
Implanting the Model 3023 Neurostimulator 23 Completing the implant procedure 24 Replacing the Model 3023 Neurostimulator 24
Declaration of conformity 25
Control magnet 26
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InterStim II Model 3058 Neurostimulator
Introduction
This manual includes information about two devices used separately as part of a Medtronic InterStim System. The Medtronic InterStim II Model 3058 Neurostimulator is used with a lead and the Medtronic InterStim Model 3023 Neurostimulator is used with a lead and an extension.
InterStim II Model 3058 Neurostimulator
Device description
The Medtronic InterStim II Model 3058 Neurostimulator is part of a neurostimulation system for InterStim Therapy.
Package contents
ƒ Neurostimulator ƒ Torque wrench ƒ Product literature
Patient registration and identification card
The implant registration form registers the device and creates a record of the device in Medtronic’s implant data system.
A patient identification card is package with this device. Advise the patient to carry the identification card at all times.
The patient identification card packaged with the device is temporary; a permanent
card will be mailed to the patient when Medtronic receives the implant registration form.
Device specifications
The neurostimulator is a programmable device that accommodates a lead through which a stimulation program is delivered.
Refer to Table 1 for shipping, operating, and power-on-reset values. Refer to Table 2 for physical characteristics. Refer to Table 3 for materials of package components.
InterStim Therapy 2016-06-01 English 5
InterStim II Model 3058 Neurostimulator
Table 1. Shipping, operating, and power-on-reset (POR) values for the
Medtronic InterStim II Model 3058 Neurostimulator
a
.
Programmable Parameters Shipping Operating POR
Amplitude
Normal Resolution Upper Limit Lower Limit
Fine Resolution Upper Limit Lower Limit
Rate 14 Hz 49 values
0.0 V
0.0 V
0.0 V
---
---
---
100 mV steps
8.5 V maximum
0.0 V minimum
50 mV steps
6.35 V maximum
0.0 V minimum
0.0 V
0.0 V
0.0 V
---
---
---
31 Hz
(from 2.1 to 130 Hz)
Pulse width 210 μs Increments of 30 μs steps
450 μs maximum 60 μs minimum
210 μs
Operating Mode Continuous Continuous or Cycling Continuous
c
Cycle On/Cycle Off time
SoftStart/Stop
d
Output On/Off
Polarity
a
All values are approximate.
b
Power-on-reset (POR) turns OFF stimulation by resetting the amplitude to 0.0 V and all electrodes to OFF. POR can occur when there is a temporary fluctuation in battery voltage (eg, due to electromagnetic interference during electrocautery or defibrillation) or the battery is depleted. When POR occurs, the serial number is reset to a nominal value and must be entered with the clinician programmer.
c
Cycle On and Cycle Off time must be greater than or equal to the SoftStart/Stop time.
d
SoftStart/Stop must be less than or equal to the Cycle On and Cycle Off time.
e
If case electrode is positive, electrodes 0-3 may be programmed to Off or – only.
Electrode Number
0 1 2 3 Case
0.1 sec 0.1 sec to 24 hr 0.1 sec
Off 1, 2, 4, 8, 15, 30 sec, or
Off
Off On or Off Off
– Off Off +
e
Off
Off, + or – Off, + or – Off, + or – Off, + or – Off or +
Off
– Off Off + Off
b
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InterStim II Model 3058 Neurostimulator
Table 2. Physical characteristics of the InterStim II Model 3058
Neurostimulator.
a
Description Value
Height 44 mm (1.7 in)
Length 51 mm (2 in)
Thickness 7.7 mm (0.3 in)
Weight 22 g (0.77 oz)
3
Volume 14 cm
(0.85 in3)
External shield Titanium
Power source
b
1.3 Amp Hours, 3.2 V Lithium silver vanadium oxide hybrid
Storage temperature -18 °C to 52 °C (0 °F to 125 °F)
Serial Number
Radiopaque Identification (ID)
a
All measurements are approximate.
b
The power source is hermetically sealed within the case.
c
The serial number is the radiopaque ID followed by a number. The clinician programmer
c
NJY
displays the entire number beginning with the radiopaque ID.
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InterStim II Model 3058 Neurostimulator
X-Ray identification
Radiopaque identification permits the determination of manufacturer and neurostimulator model number (Figure 1). With standard x-ray procedures, the code appears as black characters on white background. The Medtronic symbol identifies Medtronic as the manufacturer. For the Medtronic InterStim II Model 3058 Neurostimulator, the designated characters are NJY.
Figure 1. The InterStim II Model 3058 Neurostimulator
radiopaque code block.
Table 3. Material of components in the Model 3058 package.
Structure Material Material Contacts Human Tissue
a
Case
Connector Urethane Yes
Grommets, seals, strain relief
Setscrew and electrical contacts
Adhesive Silicone
Torque wrench
Handle Shaft
a
The electronics and power source are hermetically sealed within the case.
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Titanium Yes
Silicone rubber Yes
Titanium Yes
adhesive
Polyetherimide Stainless steel
Yes
Yes Yes
InterStim II Model 3058 Neurostimulator
Instructions for use: Model 3058
Cautions:
ƒ When using sharp instruments near the neurostimulator, be careful to avoid
nicking or damaging the case or the connector block. Damaging the neurostimulator may require surgical replacement.
ƒ Do not use saline or other ionic fluids at connections, which could result in a
short circuit.
Verifying neurostimulator operation
Before opening the sterile neurostimulator package, use the clinician programmer to interrogate the neurostimulator and verify neurostimulator battery status and current settings.
Caution: Do not implant a neurostimulator if it was dropped onto a hard surface from a height of 30 cm (12 in) or more, because the neurostimulator may be damaged and fail to operate properly.
Creating a pocket for the Model 3058 Neurostimulator
1. Create a subcutaneous pocket for the neurostimulator by blunt dissection to the
anterior surface of the muscle. The neurostimulator is placed in the upper buttock area.
Notes:
ƒ The Model 3058 Neurostimulator should be placed no deeper than 2.5 cm (1 in)
below the skin and should be parallel to the skin. If the neurostimulator is too deep or is not parallel to the skin, telemetry may be unsuccessful.
ƒ If the patient has any other neurostimulator, the neurostimulators must be
separated by a minimum of 20 cm (8 in).
Cautions:
ƒ The neurostimulator is provided sterile. Do not soak the neurostimulator in
antibiotic solution. Soaking in antibiotic solution can affect lead connections.
ƒ To avoid infection, it is recommended that the neurostimulator implant site
be irrigated with antibiotic solution, and that IV antibiotics be administered perioperatively. Do not allow the neurostimulator to come into contact with any non-sterile surface. Do not place on skin. If an infection occurs, it may require surgical removal of the implanted system.
2. Place the neurostimulator in the pocket to assure proper fit and then remove it. Keep the neurostimulator sterile and clean.
3. Tunnel from the lead incision site to the neurostimulator pocket. Refer to the product literature packaged with the lead for detailed tunneling and lead implant instructions.
InterStim Therapy 2016-06-01 English 9
InterStim II Model 3058 Neurostimulator
4. Connect the lead to the Model 3058 Neurostimulator according to the steps in “Connecting the lead to the Model 3058 Neurostimulator” in this manual.
Connecting the lead to the Model 3058 Neurostimulator
Caution: Before connecting components, wipe off any body fluids and dry all
connections. Fluids in the connection may result in stimulation at the connection site, intermittent stimulation, or loss of stimulation.
1. Wipe the proximal lead electrode connections with sterile gauze. If necessary, use sterile (United States Pharmacopeia [USP]) water or a nonionic antibiotic solution, then wipe dry.
2. Make sure the connector block receptacle is dry and clean.
3. Confirm that the lead has four electrodes matching the encapsulated diagram on the
neurostimulator (Figure 2).
4. Insert the lead into the neurostimulator connector block until fully seated (Figure 2).
Caution: Do not pull the lead body taut when implanted. The lead is available in
different lengths. Select a lead length that allows connection without tension.
Note: To retract the setscrew, insert the torque wrench into the self-sealing grommet and rotate the setscrew counterclockwise; however, do not remove the setscrew from the connector block (Figure 3).
Caution: Do not insert the lead into the connector block if the setscrew is not sufficiently retracted. If the setscrew is not retracted, the lead may damage the setscrew and the lead then will not seat fully into the connector block.
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InterStim II Model 3058 Neurostimulator
Encapsulated Diagram
Figure 2. Insert lead fully into Model 3058 Neurostimulator connector block.
Figure 3. To back out the setscrew from the Model 3058 Neurostimulator, use the torque
Note: The torque wrench must be oriented to the same angle as the setscrew (Figure 3).
InterStim Therapy 2016-06-01 English 11
wrench and turn setscrew counterclockwise.
InterStim II Model 3058 Neurostimulator
5. Fully insert the torque wrench into the self-sealing grommet of the connector block and tighten the setscrew by turning clockwise until the torque wrench clicks (Figure 4).
Cautions:
ƒ Be sure the torque wrench is fully inserted into the self-sealing grommet. If
the torque wrench is not fully inserted, the setscrew may be damaged, resulting in intermittent or loss of stimulation.
ƒ Before tightening the setscrew, ensure that the lead is inserted into the
connector block to prevent damaging the connector block.
ƒ Verify that the self-sealing grommet is closed after the torque wrench is
withdrawn. If fluid leaks through a grommet seal that is not fully closed, the patient may experience shocking, burning, or irritation at the neurostimulator implant location, or intermittent stimulation or loss of stimulation may occur.
ƒ Discard the torque wrench after making the connection. The torque wrench
is single-use-only. Its operation cannot be assured if it is used for multiple surgeries.
Figure 4. Tighten the setscrew in the self-sealing grommet by turning clockwise until the
Note: The torque wrench must be oriented to the same angle as the setscrew (Figure 4).
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torque wrench clicks.
InterStim II Model 3058 Neurostimulator
Implanting the Model 3058 Neurostimulator
1. Place the neurostimulator into the subcutaneous pocket with the etched identification
side placed outward, away from muscle tissue, and ensure that the lead is not bent sharply.
Note: The Model 3058 Neurostimulator should be placed no deeper than 2.5 cm (1 in) below the skin and should be parallel to the skin. If the neurostimulator is too deep or is not parallel to the skin, telemetry may be unsuccessful.
Caution: Do not coil excess length in front of the etched identification side of the neurostimulator. Wrap excess length around the perimeter of the neurostimulator (Figure 5) to avoid increasing subcutaneous pocket depth, help minimize potential damage during neurostimulator replacement surgery, help minimize potential kinking, and minimize interference with telemetry during programming.
Figure 5. Wrap excess length around perimeter of the Model 3058 Neurostimulator.
2. Check the system integrity before securing the neurostimulator in place. a. Use the clinician programmer and the product literature packaged with it to confirm
the integrity of the connected system.
Caution: To use the nonsterile clinician programmer in a sterile field, place a sterile barrier between the patient and the programming head to prevent infection. Do not sterilize any part of the clinician programmer. Sterilization may damage the programmer.
Note: The neurostimulator should be in the pocket during system interrogation to ensure proper readings.
b. Program the stimulation parameters you have selected for your patient according
to the product literature packaged with the programmer.
c. Check the battery status; if applicable, check the electrode impedances to rule out
a short or open circuit.
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InterStim II Model 3058 Neurostimulator
3. Use the two suture holes in the connector block to secure the neurostimulator to the muscle fascia with nonabsorbable silk.
Completing the implant procedure
1. Close and dress all incisions.
2. Ensure that a patient programmer and a patient ID card are given to the patient.
Caution: Because the patient programmer is the patient’s only means to adjust
or turn the neurostimulator on or off, the patient must carry a programmer at all times.
3. Complete the device tracking and patient registration paperwork and return the documents to Medtronic.
Note: See the Information for Prescribers booklet packaged with this device for clinician instructions to patients and for information regarding the return of product documentation.
4. Schedule regular patient follow-up appointments to monitor the condition of the neurostimulator and to confirm that the programmed parameter values are appropriate.
Replacing the Model 3058 Neurostimulator
If replacing a Model 3023 Neurostimulator, refer to page 24 of this manual.
1. Open the implant site using normal surgical procedure and carefully remove the neurostimulator from the subcutaneous pocket.
2. Clean the neurostimulator connector block and lead with sterile water; wipe dry with sterile gauze.
3. Insert a torque wrench through the prepierced hole in the rubber sealing grommet and loosen the setscrew by turning it counterclockwise.
4. Gently retract the lead from the neurostimulator connector block.
Caution: Replace any device that shows signs of damage, pitting, or corrosion.
5. Clean and dry the connector block and lead — which must be free of fluids or tissue.
6. Set aside the explanted components for return to Medtronic.
7. Connect the lead and replacement neurostimulator according to the product literature
packaged with those devices. Note: Increased pocket size may be necessary if replacement neurostimulator uses
an extension.
8. Return explanted devices to Medtronic according to product literature packaged with those devices.
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InterStim Model 3023 Neurostimulator
InterStim Model 3023 Neurostimulator
Device description
The Medtronic InterStim Model 3023 Neurostimulator is part of a neurostimulation system for InterStim Therapy.
Package contents
ƒ Neurostimulator ƒ Torque wrench ƒ Product literature
Patient registration and identification card
The implant registration form registers the device and creates a record of the device in Medtronic’s implant data system.
A patient identification card is packaged with this device. Advise the patient to carry the identification card at all times.
The patient identification card packaged with the device is temporary; a permanent
card will be mailed to the patient when Medtronic receives the implant registration form.
Device specifications
The neurostimulator is a programmable device that accommodates an extension by which
a stimulation program is delivered through a lead. Refer to Table 4 for shipping, operating, and power-on-reset values. Refer to Table 5 for
physical characteristics. Refer to Table 6 for materials of package components.
InterStim Therapy 2016-06-01 English 15
InterStim Model 3023 Neurostimulator
Table 4. Shipping, operating, and power-on-reset (POR) values for the
Medtronic InterStim Model 3023 Neurostimulator
Programmable Parameters Shipping Operating POR
Amplitude
Normal Resolution Upper Limit Lower Limit
Fine Resolution Upper Limit Lower Limit
Rate 14 Hz 49 values
0.0 V
0.0 V
0.0 V
---
---
---
100 mV steps
10.5 V maximum
0.0 V minimum
50 mV steps
6.35 V maximum
0.0 V minimum
a
.
0.0 V
0.0 V
0.0 V
---
---
---
31 Hz
b
(from 2.1 to 130 Hz)
Pulse Width 210 μs Increments of 30 μs
Operating
Continuous Continuous or Cycling Continuous
steps 450 μs maximum 60 μs minimum
210 μs
Mode
c
Cycle On/Cycle Off time
SoftStart/Stop
d
0.1 sec 0.1 sec to 24 hr 0.1 sec
Off 1, 2, 4, 8, 15, 30 sec, or
Off
Off
Magnet Control Disabled Enabled/Disabled Enabled
Output On/Off Off On or Off Off
Polarity
Electrode Number
Case
a
All values are approximate.
b
Power-on-reset (POR) turns OFF stimulation by resetting the amplitude to 0.0 V and all electrodes to OFF. POR can occur when there is a temporary fluctuation in battery voltage (eg, due to electromagnetic interference during electrocautery or defibrillation) or the battery is depleted. When POR occurs, the serial number is reset to a nominal value and must be entered with the clinician programmer.
c
Cycle On and Cycle Off time must be greater than or equal to the SoftStart/Stop time.
d
SoftStart/Stop must be less than or equal to the Cycle On and Cycle Off time.
e
If case electrode is positive, electrodes 0-3 may be programmed to Off or – only.
Polarity
0
Off
1
Off
2
+
3
e
Off
Off, + or – Off, + or – Off, + or – Off, + or – Off or +
– Off Off + Off
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InterStim Model 3023 Neurostimulator
Table 5. Physical characteristics of the InterStim Model 3023
Neurostimulator
a
.
Description Value
Height 55 mm (2.2 in)
Length 60 mm (2.4 in)
Thickness 10 mm (0.4 in)
Weight 42 g (1.5 oz)
3
Volume 25 cm
(1.5 in3)
External shield Titanium
Power source
b
2.7 Amp hours, 3.7 V Lithium-thionyl chloride cell
Storage temperature -18 °C to 52 °C (-0 °F to 125 °F)
Serial Number
Radiopaque Identification (ID)
a
All measurements are approximate.
b
The power source is hermetically sealed within the case.
c
The serial number is the radiopaque ID followed by a number. The clinician programmer displays the entire number beginning with the radiopaque ID.
c
NBV
InterStim Therapy 2016-06-01 English 17
InterStim Model 3023 Neurostimulator
X-Ray identification
Radiopaque identification permits the determination of manufacturer and neurostimulator model number (Figure 6). With standard x-ray procedures, the code appears as black characters on white background. The Medtronic symbol identifies Medtronic as the manufacturer. For the InterStim Model 3023 Neurostimulator, the designated characters are NBV.
Figure 6. The InterStim Model 3023 Neurostimulator radiopaque code block.
Table 6. Material of components in the Model 3023 package.
Structure Material Material Contacts Human
a
Case
Titanium Yes
Connector Urethane Yes
Grommets, seals Silicone rubber Yes
Setscrews Titanium Yes
Insulation
b
coating
Polymeric insulating film Yes
Adhesive Silicone adhesive Yes
Torque wrench
Handle Shaft
a
The electronics and power source are hermetically sealed within the case.
b
The etched side of the Model 3023 case is uninsulated and can be programmed as an indifferent electrode.
Polyetherimide Stainless steel
Tissue
Yes Yes
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InterStim Model 3023 Neurostimulator
Instructions for use: Model 3023
Cautions:
ƒ When using sharp instruments near the neurostimulator, be careful to avoid
nicking or damaging the case, the insulation, or the connector block. Damaging the neurostimulator may require surgical replacement.
ƒ Do not use saline or other ionic fluids at connections, which could result in a
short circuit.
Verifying neurostimulator operation
Before opening the sterile neurostimulator package, use the clinician programmer to interrogate the neurostimulator and verify neurostimulator battery status and current settings.
Caution: Do not implant a neurostimulator if it was dropped onto a hard surface from a height of 30 cm (12 in) or more, because the neurostimulator may be damaged and fail to operate properly.
Creating a pocket for the Model 3023 Neurostimulator
1. Create a subcutaneous pocket for the neurostimulator by blunt dissection to the
anterior surface of the muscle. The neurostimulator is typically placed in the upper buttock area.
Notes:
ƒ Abdominal placement is an option with the Model 3023 Neurostimulator. Abdominal
implant instructions are included in the product literature packaged with the leads.
ƒ The Model 3023 Neurostimulator should be placed no deeper than 4 cm (1.5 in)
below the skin and should be parallel to the skin. If the neurostimulator is too deep or is not parallel to the skin, telemetry may be unsuccessful.
ƒ The uncoated, etched side of the 3023 case can be programmed as an indifferent
electrode. The etched side of the neurostimulator must face away from muscle to prevent uncomfortable stimulation.
ƒ If the patient has any other neurostimulator, the neurostimulators must be
separated by a minimum 20 cm (8 in).
ƒ The Model 3023 Neurostimulator requires the use of an extension.
InterStim Therapy 2016-06-01 English 19
InterStim Model 3023 Neurostimulator
Cautions:
ƒ The neurostimulator is provided sterile. Do not soak the neurostimulator in
antibiotic solution. Soaking in antibiotic solution can affect lead connections.
ƒ To avoid infection, it is recommended that the neurostimulator implant site
be irrigated with antibiotic solution, and that IV antibiotics be administered perioperatively. Do not allow the neurostimulator to come into contact with any non-sterile surface. Do not place on skin. If an infection occurs, it may require surgical removal of the implanted system.
2. Place the neurostimulator in the pocket to assure proper fit and then remove it. Keep the neurostimulator sterile and clean.
3. Tunnel from the lead incision site to the neurostimulator pocket. Refer to the product literature packaged with the lead for detailed tunneling and lead implant instructions.
4. Wipe the proximal end of the lead with sterile gauze and make sure the extension is dry and clean.
5. Connect and implant the lead and extension according to product literature packaged with those devices.
6. Connect the extension to the Model 3023 Neurostimulator according to the steps in “Connecting the extension to the Model 3023 Neurostimulator” in this manual.
Connecting the extension to the Model 3023 Neurostimulator
Caution: Before connecting components, wipe off any body fluids and dry all
connections. Fluids in the connection may result in stimulation at the connection site, intermittent stimulation, or loss of stimulation.
1. Wipe the extension connector pins with sterile gauze. If necessary, use sterile (United States Pharmacopeia [USP]) water or a nonionic antibiotic solution, then wipe dry.
2. Make sure the connector block receptacles are dry and clean.
3. Confirm that the encapsulated diagram on the extension has four electrodes matching
the encapsulated diagram on the neurostimulator (Figure 7).
4. Insert the extension connector pins into the neurostimulator until they are fully seated within the connector block (Figure 7).
Caution: Do not pull the extension or lead body taut when implanted. The extension and lead are available in different lengths. Select a length that allows connection without tension.
Note: To retract the setscrews, insert the torque wrench into the self-sealing grommet and rotate the setscrews counterclockwise; however, do not remove the setscrews from the connector block (Figure 8).
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InterStim Model 3023 Neurostimulator
Grommet
Caution: Do not insert the extension connector pins into the connector block if the setscrews are not sufficiently retracted. If the setscrews are not retracted, the extension connector pins may damage the setscrews and the extension connector pins will not be seated fully into the connector block.
Encapsulated Diagram
Figure 7. Insert extension connector pins fully into Model 3023 Neurostimulator
Figure 8. To back out a setscrew from the Model 3023 Neurostimulator, use the torque
Note: The torque wrench must be oriented to the same angle as the setscrew (Figure 8).
wrench and turn the setscrew counterclockwise.
InterStim Therapy 2016-06-01 English 21
connector block.
InterStim Model 3023 Neurostimulator
5. Fully insert the torque wrench into the self-sealing grommet of the connector block and tighten each setscrew by turning clockwise until the torque wrench clicks (Figure 9).
Cautions:
ƒ Be sure the torque wrench is fully inserted into the self-sealing grommet. If
the torque wrench is not fully inserted, the setscrew may be damaged, resulting in intermittent or loss of stimulation.
ƒ Before tightening setscrews, ensure that the extension connector pins are
inserted into the connector block to prevent damaging the connector block.
ƒ Verify that each self-sealing grommet is closed after the torque wrench is
withdrawn. If fluid leaks through a grommet seal that is not fully closed, the patient may experience shocking, burning, or irritation at the neurostimulator implant location, or intermittent stimulation or loss of stimulation may occur.
ƒ Discard the torque wrench after making all of the connections. The torque
wrench is single-use-only. Its operation cannot be assured if it is used for multiple surgeries.
Figure 9. Tighten the setscrews in the self-sealing grommet by turning clockwise until the
Note: The torque wrench must be oriented to the same angle as the setscrew (Figure 9).
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torque wrench clicks.
InterStim Model 3023 Neurostimulator
Implanting the Model 3023 Neurostimulator
1. Place the neurostimulator into the subcutaneous pocket with the etched identification
side placed outward, away from muscle tissue, and ensure that the extension is not bent sharply.
Note: The Model 3023 Neurostimulator should be placed no deeper than 4 cm (1.5 in) below the skin and should be parallel to the skin. If the neurostimulator is too deep or is not parallel to the skin, telemetry may be unsuccessful.
Cautions:
ƒ Do not place the etched identification side of the neurostimulator facing
inward. Placing the etched side inward could increase the possibility of skeletomuscular stimulation, which the patient may perceive as twitching or burning.
ƒ Do not coil excess length in front of the etched identification side of the
neurostimulator. Wrap excess length around the perimeter of the neurostimulator (Figure 10) to avoid increasing subcutaneous pocket depth, help minimize potential damage during neurostimulator replacement surgery, help minimize potential kinking, and minimize interference with telemetry during programming.
Figure 10. Wrap excess extension around the perimeter of the Model 3023
2. Check the system integrity before securing the neurostimulator in place. a. Use the clinician programmer and the product literature packaged with it to confirm
the integrity of the connected system.
InterStim Therapy 2016-06-01 English 23
Neurostimulator.
InterStim Model 3023 Neurostimulator
Caution: To use the nonsterile clinician programmer in a sterile field, place a sterile barrier between the patient and the programming head to prevent infection. Do not sterilize any part of the clinician programmer. Sterilization may damage the programmer.
Note: The neurostimulator should be in the pocket during system interrogation to ensure proper readings. b. Program the stimulation parameters you have selected for your patient according
to product literature packaged with the programmer.
c. Check the battery status; if applicable, check the electrode impedances to rule out
a short or open circuit.
3. Use the two suture holes in the connector block to secure the neurostimulator to the muscle fascia with nonabsorbable silk.
Completing the implant procedure
1. Close and dress all incisions.
2. Ensure that a patient programmer and a patient ID card are given to the patient.
Caution: Because the patient programmer is used to adjust or turn the
neurostimulator on or off, the patient must carry a programmer at all times. Patients implanted with a Model 3023 Neurostimulator may also receive the optional Model 7452 Control Magnet that is used to turn the neurostimulator on or off. In order for the control magnet to turn the neurostimulator on or off, the clinician must enable Magnet Control on the Model 3023 Neurostimulator using the clinician programmer. Magnet Control can not be enabled or disabled using the patient programmer.
3. Complete the device tracking and patient registration paperwork and return the documents to Medtronic.
Note: See the Information for Prescribers booklet packaged with this device for clinician instructions to patients and for information regarding the return of product documentation.
4. Schedule regular patient follow-up appointments to monitor the condition of the neurostimulator and to confirm that the programmed parameter values are appropriate.
Replacing the Model 3023 Neurostimulator
If replacing a Model 3058 Neurostimulator, refer to page 14 of this manual.
1. Open the implant site using normal surgical procedure and carefully remove the neurostimulator from the subcutaneous pocket.
2. Clean the neurostimulator connector block and extension connector with sterile water; wipe lead dry with surgical sponges.
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InterStim Model 3023 Neurostimulator
3. Insert a torque wrench through each prepierced hole in the rubber sealing grommet and loosen the setscrews by turning them counterclockwise.
4. Gently retract the extension connector pins from the neurostimulator connector block.
Caution: Replace any device that shows signs of damage, pitting, or corrosion.
5. Clean and dry the connector block and extension connector pins which must be free
of fluids or tissue. Note: If the replacement neurostimulator does not require the existing extension,
disconnect the extension from the lead. Clean and dry the proximal end of the lead. Take care not to move the lead when extension is disconnected.
6. Set aside the explanted components for return to Medtronic.
7. Connect the replacement neurostimulator according to the product literature
packaged with that device.
8. Return explanted devices to Medtronic according to product literature packaged with those devices.
Declaration of conformity
Medtronic declares that the Model 3058 and Model 3023 Neurostimulators are in conformity with the essential requirements of Directive 90/385/EEC on Active Implantable Medical Devices.
For additional information, contact the appropriate Medtronic office listed on the inside back cover of this manual.
InterStim Therapy 2016-06-01 English 25
InterStim Model 3023 Neurostimulator
Control magnet
The Medtronic Model 7452 Control Magnet allows your patient to turn the Model 3023 Neurostimulator on or off. The control magnet is not used with the Model 3058 Neurostimulator.
When the control magnet on/off control circuit is enabled, applying the flat, rectangular edge of the control magnet over the implant site for 1 to 2 seconds (Figure 11) and then removing it turns the neurostimulator on or off.
Neurostimulator
Control Magnet
Figure 11. Control magnet properly positioned over the Model 3023 Neurostimulator.
If SoftStart/Stop is in use, turning the Model 3023 Neurostimulator on causes the amplitude to ramp up from zero to the selected output amplitude. Turning the neurostimulator off causes the amplitude to ramp down to zero again. The ramp time is set by the SoftStart/ Stop parameters.
The control magnet on/off control circuit does not affect programmed parameters; when the output is turned on with the control magnet, the output resumes its previously programmed waveform and stimulation mode.
For patients who live or work in electrically noisy environments, random on or off switching may be a problem. If on or off switching occurs, you can disable the magnet control circuitry with a command to the neurostimulator from the clinician programmer. Detailed instructions on disabling this feature are provided in the product literature packaged with the programmer software.
Note: The patient with a Model 3023 Neurostimulator may carry the optional control magnet to turn the neurostimulator on or off.
The patient programmer will still operate the neurostimulator because it uses a different circuit than the control magnet to turn the neurostimulator on or off. The magnet control circuit can be enabled again with another command from the clinician programmer, if desired.
26 English 2016-06-01 InterStim Therapy
InterStim Model 3023 Neurostimulator
Caution: Because the patient programmer is used to adjust or turn on or off the neurostimulator, the patient must carry a programmer at all times. Patients implanted with a Model 3023 Neurostimulator may also receive the optional Model 7452 Control Magnet that is used to turn the neurostimulator on or off. In order for the control magnet to turn the neurostimulator on or off, the clinician must enable Magnet Control on the Model 3023 Neurostimulator using the clinician programmer. Magnet Control can not be enabled or disabled using the patient programmer.
InterStim Therapy 2016-06-01 English 27
Contacts: Asia: Medtronic International Ltd.
Tel. 02919-1362 Fax 02907-3998
Asia: Medtronic Asia Ltd. Tel. (02)-548-1148 Fax (02)-518-4786
Australia: Medtronic Australasia Pty. Ltd. 97 Waterloo Road North Ryde, NSW 2113 Australia Tel. +61-2-9857-9000 Fax +61-2-9878-5100 Toll-free 1-800-668-6700
Austria: Medtronic Österreich GmbH Tel. 01-240440 Fax 01-24044-100
Belgium: Medtronic Belgium S.A. Tel. 02-456-0900 Fax 02-460-2667
Canada: Medtronic of Canada Ltd. Tel. (1905) 460-3800 Fax (1905) 826-6620 Czech Republic: Medtronic Czechia s.r.o. Tel. 2-965-795-80 Fax 2-965-795-89 Denmark: Medtronic Danmark A/S Tel. 45-32-48-18-00 Fax 45-32-48-18-01 Finland: Medtronic Finland Oy/Ltd Tel. (09)-755-2500 Fax (09)-755-25018 France: Medtronic France S.A.S. Tel. 01-5538-1700 Fax 01-5538-1800 Germany: Medtronic GmbH, Tel. (02159)-81490 Fax (02159)-8149100 Greece: Medtronic Hellas S.A. Tel. 210-67-79-099 Fax 210-67-79-399 Hungary: Medtronic Hungária Kft. Tel. 1-889-06-00 Fax 1-889-06-99 Ireland: Medtronic Ireland Ltd. Tel. (01)-890-6522 Fax (01)-890-7220
Italy: Medtronic Italia SpA Tel. 02-241371 Fax 02-241381 Tel. 06-328141 Fax 06-3215812 Japan: Medtronic Japan Tel. 03-6430-2016 Fax 03-6430-7110 Latin America: Medtronic, Inc. Tel. (1305)-500-9328 Fax (1786)-709-4244 Norway: Medtronic Norge AS Tel. 067-10-32-00 Fax 067-10-32-10 Poland: Medtronic Poland Sp. z.o.o. Tel. (022)-465-69-00 Fax (022)-465-69-17 Portugal: Medtronic Portugal, Lda. Tel. 21-724-5100 Fax 21-724-5199 Russia: Medtronic Russia Tel. (8495) 580-7377 Fax (8495) 580-7378 Slovakia: Medtronic Slovakia, o.z. Tel. 0268 206 911 Fax 0268 206 999 Spain: Medtronic Ibérica, S.A. Tel. 91-625-0400 Fax 91-650-7410 Sweden: Medtronic AB Tel. 08-568-585-00 Fax 08-568-585-01 Switzerland: Medtronic (Schweiz) AG Tel. 031-868-0100 Fax 031-868-0199 The Netherlands: Medtronic B.V. Tel. (045)-566-8000 Fax (045)-566-8668 U.K.: Med
tronic U.K. Ltd. Tel. 01923-212213 Fax 01923-241004
USA: Medtronic, Inc. Tel. (1763) 505-5000 Fax (1763) 505-1000 Toll-free (1800) 328-0810
Manufacturer
EC
REP
Medtronic, Inc. 710 Medtronic Parkway Minneapolis, MN 55432-5604 USA www.medtronic.com Tel. 1-763-505-5000 Fax 1-763-505-1000
Authorized Representative in the European Community
Medtronic B.V. Earl Bakkenstraat 10 6422 PJ Heerlen The Netherlands Tel. 31-45-566-8000 Fax 31-45-566-8668
Europe/Africa/Middle East Headquarters
Medtronic International Trading Sàrl Route du Molliau 31 Case Postale 84 CH-1131 Tolochenaz Switzerland www.medtronic.eu Tel. 41-21-802-7000 Fax 41-21-802-7900
Asia-Pacific
Medtronic International Ltd. Suite 1106-11, 11/F, Tower 1, The Gateway, 25 Canton Road, Tsimshatsui Kowloon Hong Kong Tel. 852-2919-1362 Fax 852-2907-3998
Contacts for specific countries are listed inside this cover.
© Medtronic, Inc. 2016 All Rights Reserved
*MA12231A024*
MA12231A024 Rev A
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