HookKnife
Model KD-620LR
Dr. Tsuneo Oyama
Saku Central Hospital
Model KD-620LR
Dr. Tsuneo Oyama
Saku Central Hospital
Interview With The Expert
it’s safer than a needle knife because it hooks the mucosa for incision and dissection so it is less invasive for the deeper tissues. The rotary function provides another advantage, the ability to align the knife horizontally or vertically. Marking with the back of HookKnife will reduce the risk of perforation. In addition, safer use is possible by mounting an attachment to the endoscope’s distal end to maintain the field of view and by pulling the mucosa into the attachment before supplying current. The capability to perform dissection by directly observing the submucosal layer enables precoagulation. It is nice to be able to perform dissection with a good view and no bleeding.
it is unavoidable to say that the cutting amount for each time is not plentiful.
The needle knife is convenient because its cutting style is like flicking the tissue. Also ITknife and FlexKnife have a higher vertical incision speed so I sometimes use them instead of HookKnife.
Applicability of HookKnife
Difficulty per region
◯ : Easy. No mark: Ordinary. △ : Difficult.
| Cardiac region | ||
|---|---|---|
| Fornix | △ | |
| Lesser curvature of upper body | ◯ | |
| Greater curvature of upper body | △ | |
| Anterior wall of upper body | ||
| Posterior wall of upper body | ||
| Lesser curvature of middle body | ◯ | |
| Greater curvature of middle body | △ | |
| Anterior wall of middle body | ||
| Posterior wall of middle body | ||
| Lesser curvature of lower body | ◯ | |
| Greater curvature of lower body | ◯ | |
| Anterior wall of lower body | ◯ | |
| Posterior wall of lower body | ◯ | |
| Lesser curvature of anterior wall | ||
| Greater curvature of antrum | ◯ | |
| Anterior wall of antrum | ◯ | |
| Posterior wall of antrum | ◯ | |
| Pyloric ring | △ |
Recommendation for beginners: 1) It is important to begin by observing the experts’ procedures. 2) Start with UL(-) lesion of 2 cm or less.
3) After you experience about 10 cases, observe procedures performed by experts again.
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