HookKnife™ device
Model KD-620LR/UR
Basic specifications
Distal end
Cutting knife length: 4.5 mm
Hook length: 1.3 mm
Cutting knife diameter: 00.4 mm
Sheath
Max. insertion portion diameter: 02.6 mm
Working length:
KD-620LR – 1,950 mm
KD-620UR – 2,300 mm
HookKnife™ J Device
KD-625LR/UR
Case with HookKnife™ device
For Safer and More Appropriate Use
Information on this page provided by Olympus
Basic Operation of the HookKnife™ device (Rotation)
1 Hold and pull the slider until the hook is slightly withdrawn. This makes the hook rotatable.
2 While holding the sheath, turn the handle slowly and align the direction of the hook.
*Rotation can be facilitated by removing the A-cord. *If rotation is difficult, move the slider back and forth.
3 Push the slider and extend the cutting knife. By maintaining it, the rotation of the hook is locked.
Please note that under some conditions, damage such as melting of the distal end or stretching of the hook may occur. In particular, under the circumstances outlined below, an excessive load is likely to be imposed on the knife, increasing the risk that the knife will be damaged.
Conditions that impose a heavy load on the knife and countermeasures
1 When the current is activated while the knife is in contact with the tissue under high-moisture conditions:
Before activation, remove moisture, including mucus and blood, from the region before contacting it with the endotherapy device.
2 When the electrosurgical unit is set to a high-voltage waveform and activation is continued for an extended period:
Reduce the use of high-voltage waveforms to the minimum required level. Keep the activation period as short as possible when using a high-voltage waveform.
| Electrosurgical unit: Voltage intensities of various waveforms |
| Cut / Soft Coagulation < Blend < Coagulation < Spray Coagulation∗2 (e.g., APC mode) |
∗1 Long period of activation using a high-voltage waveform may increase invasion in deep tissue.
∗2 Spray Coagulation mode cannot be used with this instrument.
3 When the knife is subjected to excessive force at the time of retraction into the sheath or during removal of tissue attached to the knife:
Be careful not to apply excessive force when removing tissue attached to the knife.
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