510(k) · Cleared
Recalled · Class II · 2016Variosurg
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Nakanishi, Inc. · DZI Drill, Bone, Powered
Cleared on Jul 10, 2008 after a 195-day review. FDA’s file for it is a 510(k) statement, which names no predicate. 1 later device descends from it. It has been recalled once.
- Decided
- Jul 10, 2008
- Review
- 195 days
- Class
- Class II
- Product code
- DZI
- Recalls
- 1
- Predicates
- 0
1 later device descends from it, 1 citing it directly.
- This deviceK073678 VariosurgNakanishi, Inc. · 2008
- Descendant · cites it directly · 0 of its ownK254163 VarioSurg 4Nakanishi, Inc. · 2025
Most influential descendants
Showing 1 of 1 · See all- K254163VarioSurg 4Nakanishi, Inc. · 2025 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K073678 | Variosurg | Nakanishi, Inc. | 2008 | — |
| +1 | K254163 | VarioSurg 4 | Nakanishi, Inc. | 2025 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2025 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), the FDA 510(k) statement (indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in DZI? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new DZI device
- #1 K253776 Implantmed Plus II & Piezomed Plus II Modulescore 12.1 · 3 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against?
FDA’s file for it is a 510(k) statement, which names no predicate.
What descends from it? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K254163 | VarioSurg 4 | 2025 | 0 |
Has anything in its family been recalled? (0 Class I)
Recalls of this device
| Date | Class | Recall | Root cause | Reason |
|---|---|---|---|---|
| Jul 8, 2016 | Class II | Z-2673-2016 | Error in labeling | Through an error, the labeling failed to include the symbol or other text indicating that the diamond coated tips were single use only. A contributing factor to this error is that in other markets such as Japan, the diamond coated tips… |
No ancestor or descendant has a Class I recall.
What does this lineage say?
- Of its descendants, K254163 (Nakanishi, Inc., 2025) has gone furthest, with 0 descendants of its own.
How does its category compare?
All DZI devicesDZI Drill, Bone, Powered: FDA decisions, review times, recalls and adverse event reports over 20 years. 2008, this device’s year, is highlighted.
FDA decisions per year · DZI
1in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · DZI
300in 2020
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · DZI
1in 2009
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · DZI
39in 2025
MAUDE reports naming product code DZI, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 2 | — | 0 | 53 |
| 2008 | 4 | 171 | 0 | 45 |
| 2009 | 5 | 220 | 1 | 22 |
| 2010 | 0 | — | 0 | 15 |
| 2011 | 2 | — | 0 | 42 |
| 2012 | 4 | 191 | 0 | 25 |
| 2013 | 0 | — | 0 | 57 |
| 2014 | 1 | — | 0 | 50 |
| 2015 | 3 | 123 | 0 | 39 |
| 2016 | 1 | — | 0 | 43 |
| 2017 | 0 | — | 0 | 38 |
| 2018 | 3 | 290 | 0 | 73 |
| 2019 | 0 | — | 0 | 50 |
| 2020 | 3 | 300 | 0 | 55 |
| 2021 | 0 | — | 0 | 84 |
| 2022 | 0 | — | 0 | 63 |
| 2023 | 1 | — | 0 | 63 |
| 2024 | 2 | — | 0 | 58 |
| 2025 | 1 | — | 0 | 39 |
| 2026 | 2 | — | 0 | — |
What is it indicated for?
The VarioSurg device is intended for bone cutting in oral surgery, scaling and root planing, and retrograde preparation of root canals.
Indications for use as stated in the FDA 510(k) statement.
https://510kreport.com/device/K073678 · printed Nov 4, 2026
Cite this page
510(k) Report. “K073678: Variosurg.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K073678
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026