Morrison Steerable Needle

Steerable FNA biopsy needle, 21G

Your first choice for deep-seated targets

Morrison Steerable Needle is the first steerable needle enabling active guidance around objects within the body.

  • Steer distal end of needle with live feedback under image guidance
  • Curve around sensitive structures and dangerous areas
  • Facilitates precise needle placement
  • Multipurpose needle for aspiration, injection and biopsy

Using Morrison Steerable Needle™ it is possible to:

  • Make major adjustments around bones, organs or neurovascular structures
  • Make minor adjustments near target
  • Make multiple adjustments as needle is advanced

Not available in the USA. For US version, click here.

Product assortment

Morrison Steerable Needle 21G

Morrison Steerable Needle 21G

Morrison Steerable Needle 21G

Steerable stylet
Needle (ID 0.68 mm, OD 0.82 mm (21G), length 17 cm)

Sterile, single use

Ordering information:
13500 Morrison Steerable Needle 21G
MOQ 10 units


Click reference to view abstract

Background: Needle biopsy has proven to be a potentially adequate method for initial biopsy of many soft-tissue and bone lesions. To help optimize this procedure, this study sought to test the characteristics of several needles, including a steerable needle.
Materials and Methods: Five needle types were tested, including a steerable needle. Animal muscle tissue was used for all testing. The following experiments were performed: (1) sample collection with different needle types, (2) histological analysis of needle track, (3) observation of steerable needle characteristics using CT-guidance.
Results: Sample collection: The Menghini 21 g and Chiba 22 g needles were graded as excellent for ease of use and integrity of sample. Histologic evaluation showed good specimen preservation with all needle types. Histological analysis of needle track: tracks created by the Menghini 21 g and Spinal 20 g needles both showed no histologically detectable damage to surrounding tissue. Observation of steerable Menghini needle under CT-guidance: needle advanced easily through tissue, even when maximally curved. Small, large, and double curves were feasible to avoid obstacles and reach targets. There was no deflection or change in position of the needle tip when the stylet was removed. Needle withdrawal did not damage surrounding tissue.
Conclusions: Compared to the other needles, the steerable needle was found to be durable and easy to use, allowing for precise navigation around vital structures yielding superior integrity of sample tissue.

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