Endoscopic incisional therapy for benign esophageal strictures: Technique and results

Table 2 Instruments for incisional therapy

	Distal tip outer diameter (Fr)	Knife length (mm)	Knife diameter (mm)	Min. channel size (mm)	Working length (cm)
Needle knives
Olympus (Tokyo, Japan)
Triple lumen needle knife	5	5	0.2	2.8	195
Hook knife	Hook length 1.3 mm	4.5	0.4	2.8	165/230
Needle knife (require handle)
KD-10Q-1.B	NA	3	0.4	2.0	195
KD-11Q-1.B	NA	3	0.7 (flat)	2.0	195
IT-Knife-L	Ceramic tip with diameter 2.2 mm	4	0.4	2.6
Boston scientific (Natick, Mass)
RX needle knife	5.5	5			200
MicroknifeTMXL triple lumen knife	7-5.5				200
Cook medical (Winston Salem, NC)
Fusion needle knife	6	4		4.2	200
Zimmon needle	5	7		2.0	200/320
Scissors
Surgical scissors FS-3L-1 (Olympus): Min. channel size - 2.8 mm Working length - 165 cm
Heiss-Device flexible endoscopic scissors (Telemed Systems, Hudson, Mass): 1.7 mm blade diameter × 2.5 mm blade length 1.7 mm shaft diameter 180 cm shaft length Single-action blade
SB knife Jr (Sumitomo Bakelite Co., Tokyo, Japan): Width 4.4 mm × Length 3.5 mm Rotatable monopolar scissors

Fr: French; NA: Not applicable; IT knife: Insulated tip knife.