Patented SNARECOIL™ 11 gauge × 6 inch bone marrow biopsy needle. The 6-inch working length accommodates deeper posterior iliac crest access for patients with higher BMI or anatomical depth.
Caution: Federal (USA) law restricts this device to sale by or on the order of a physician.
The Ranfac RBN-116 is an 11 gauge × 6 inch single-use bone marrow biopsy needle in the patented SNARECOIL™ family. The 6-inch working length is designed for deeper posterior iliac crest access in patients with higher BMI or anatomical depth where the standard 4-inch (RBN-114) cannot reliably reach the marrow cavity. The ergonomic handle includes a captive-mechanism lever for long, non-fragmented core recovery.
RBN-116 is the deeper-access 11 G × 6 inch SNARECOIL™ configuration, selected when the standard 4 inch RBN-114 doesn't reach the target marrow cavity. The captive-mechanism handle and core-retention design remain consistent across the SNARECOIL™ family.
Per 510(k) K983187: For procuring bone marrow core biopsies from patients with hematologic abnormalities. Per IFU 29024-01P: The Ranfac Bone Marrow Biopsy Needle is indicated for the surgical harvesting of bone marrow.
11 gauge × 6 inch is selected when posterior iliac crest cortical depth exceeds what a 4-inch needle can safely traverse — commonly in patients with high BMI or large iliac bone mass. The captive SNARECOIL™ mechanism supports long, intact core recovery. Per the 29024-01P Rev J Instructions for Use, the device is contraindicated for sternal procedures.
6-inch working length for patients where 4-inch needles cannot reliably reach the marrow cavity.
Lymphoma, leukemia, MDS, multiple myeloma workups requiring intact core specimens.
Long, non-fragmented cores reduce specimen-handling artifacts during fixation and sectioning.
Long, intact cores reduce specimen-handling artifacts during fixation, sectioning, and immunohistochemistry — supporting accurate, reproducible reads.
Construction, regulatory, and packaging details. Gauge, length, cannula and stylet are listed in the hero above. For complete indications, contraindications, and warnings, download the Instructions for Use.
| Construction | Stainless steel cannula and stylet · medical-grade polymer ergonomic handle with capture lever |
|---|---|
| Connection | Proximal luer cap (optional luer-lock for aspirate syringe per IFU) |
| Sterilization | Ethylene oxide · single-use · latex-free |
| Packaging | Individually pouched |
| FDA Clearance | 510(k) K983187 (10 Dec 1998) · Class II · Product Code KNW |
| Prescription | Rx only (21 CFR 801 Subpart D) |
Summary only. The complete 25-step bilingual Instructions for Use (29024-01P Rev J), including contraindications, warnings, and specimen-retrieval technique, accompanies every device and is downloadable below.
The RBN-116 has a 6-inch working length vs the RBN-114's 4 inches. Choose RBN-116 when posterior iliac crest cortical depth exceeds what a 4-inch needle can safely traverse — commonly with higher-BMI adults or deeper anatomy. The two devices share the same 11G cannula and SNARECOIL™ handle architecture.
SNARECOIL™ is Ranfac's patented captive specimen-capture mechanism. A lever on the ergonomic handle engages the cannula tip to retain the marrow core during withdrawal, helping recover long, non-fragmented specimens.
Yes. Cleared under 510(k) K983187, Class II, Product Code KNW. Prescription use only.
No. The 29024-01P Rev J Instructions for Use explicitly contraindicates sternal procedures with this device.
Yes. EO-sterilized, single-patient-use, not made with natural rubber latex.
The captive lever at the distal cannula tip engages and retains the marrow core during withdrawal, allowing the operator to recover a long, intact specimen in a single advancement. Reducing fragmentation supports cleaner fixation and sectioning at the pathology bench — particularly important for immunohistochemistry and flow cytometry workflows.
Other configurations in the Ranfac Hematology family.
Single-use 11 gauge × 4 inch bone marrow biopsy needle with patented SNARECOIL™ specimen capture mechanism
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Single-use 8 gauge × 6 inch SNARECOIL™ bone marrow biopsy needle — large-bore configuration with extended reach
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Single-use 11 gauge × 6 inch SNARECOIL™ bone marrow biopsy needle — specialty variant
View →Have a clinical question, need samples for evaluation, or ready to purchase? Our product team typically responds within one business day.
Building a different device on the same platform? Ranfac runs custom OEM, CDMO, and CMO programs from concept through commercial. Talk to us about a custom configuration →
