Disposable Endoscopic Injection Needle

Ergonomically designed handle with thumb actuated needle extension mechanism allows smooth needle advancement and retraction
Bevelled needle enhances ease of injection
Inner and outer catheters lock together to secure the needle in place; No accidental piercing
Clear, transparent outer catheter sheath with blue inner sheath allows visualisation of needle advancement

brand	Jiangxi ZhuoRuiHua Medical Instrument Co., Ltd

Product Detail

Application

ZRHmed® Sclerotherapy needle is intended to be used for the endoscopic injection of sclerotherapy agents and dyes into esophageal or colonic varices. It is also indicated to inject saline to aid in endoscopic mucosal resection (EMR) and polypectomy procedures. The injection of saline to aid in Endoscopic Mucosal Resection (EMR), Polypectomy procedures and to control non-variceal hemorrhage.

Specification

Model	Sheath O.D.D±0.1(mm)	Working Length L±50(mm)	Needle Size (Diameter/Length)	Endoscopic Channel (mm)
ZRH-PN	Φ2.4	1800	21G,4mm	≥2.8
ZRH-PN	Φ2.4	1800	23G,4mm	≥2.8
ZRH-PN	Φ2.4	1800	25G,4mm	≥2.8
ZRH-PN	Φ2.4	1800	21G,6mm	≥2.8
ZRH-PN	Φ2.4	1800	23G,6mm	≥2.8
ZRH-PN	Φ2.4	1800	25G,6mm	≥2.8
ZRH-PN	Φ2.4	2300	21G,4mm	≥2.8
ZRH-PN	Φ2.4	2300	23G,4mm	≥2.8
ZRH-PN	Φ2.4	2300	25G,4mm	≥2.8
ZRH-PN	Φ2.4	2300	21G,6mm	≥2.8
ZRH-PN	Φ2.4	2300	23G,6mm	≥2.8
ZRH-PN	Φ2.4	2300	25G,6mm	≥2.8

Products Description

Needle Tip Angel 30 Degree

Sharp puncture

Transparent Inner Tube

Can be used to observe blood return.

Strong PTFE Sheath Construction

Facilitates advancement through difficult pathways.

Ergonomic Handle Design

Easy to control the needle moving.

How the Disposable Sclerotherapy Needle Works

A sclerotherapy needle is used to inject fluid into the submucosal space to elevate the lesion away from the underlying muscularis propria and create a less flat target for resection.

Lift-and-cut technique for endoscopic mucosal resection.

(a) Submucosal injection, (b) passage of grasping forceps through the open polypectomy snare, (c) tightening of the snare at the base of the lesion, and (d) completion of the snare excision.
A sclerotherapy needle is used to inject fluid into the submucosal space to elevate the lesion away from the underlying muscularis propria and create a less flat target for resection. The injection is often done with saline, but other solutions have been used to achieve longer maintenance of the bleb including hypertonic saline (3.75% NaCl), 20% dextrose, or sodium hyaluronate [2]. Indigo carmine (0.004%) or methylene blue is often added to the injectate to stain the submucosa and provides a better evaluation of the depth of resection. The submucosal injection can also be used to determine if a lesion is appropriate for endoscopic resection. Lack of elevation during injection indicates adherence to the muscularis propria and is a relative contraindication to proceeding with EMR. After creating the submucosal elevation, the lesion is grasped with a rat tooth forceps that has been passed through an open polypectomy snare. The forceps lifts the lesion and the snare is pushed down around its base and resection ensues. This “reach-through” technique requires a double lumen endoscope which can be cumbersome to use in the esophagus. As a result, lift-and-cut techniques are used less commonly for esophageal lesions.

Disposable Endoscopic Injection Needle