510(k) · Cleared
ClearedKnight Endoscopic Spine System (Kess)
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Richard Wolf Medical Instruments Corp. · HRX Arthroscope
Cleared on Mar 30, 2000 after an 83-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 17 later devices descend from it.
- Decided
- Mar 30, 2000
- Review
- 83 days
- Class
- Class II
- Product code
- HRX
- Recalls
- None
- Predicates
- 0
17 later devices descend from it, 1 citing it directly.
- This deviceK000046 Knight Endoscopic Spine System (Kess)Richard Wolf Medical Instruments Corp. · 2000
- Descendant · cites it directly · 16 of its ownK081051 Spinevu Endoscopic Spine System (Sess), Spinevu MiniscopeSpine View, Inc. · 2008
- Descendant · 2 generations on · 7 of its ownK102733 Vision-Sciences Ent-5000 Video Ent Scope with Endosheath Technology…Vision-Sciences, Inc. · 2011
- Descendant · 2 generations on · 7 of its ownK090278 Enspire Debrider SystemSpine View, Inc. · 2009
- Descendant · 3 generations on · 6 of its ownK110992 Enspire Debrider SystemSpine View, Inc. · 2011
- Descendant · 4 generations on · 2 of its ownK120553 ESPINNlt Spine, Ltd. · 2012
Showing 5 of 17 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 17 · See all- K081051Spinevu Endoscopic Spine System (Sess), Spinevu MiniscopeSpine View, Inc. · 2008 · cites it directly16descendants
- K102733Vision-Sciences Ent-5000 Video Ent Scope with Endosheath Technology, Vision-Sciences…Vision-Sciences, Inc. · 2011 · 2 generations on7descendants
- K090278Enspire Debrider SystemSpine View, Inc. · 2009 · 2 generations on7descendants
- K110992Enspire Debrider SystemSpine View, Inc. · 2011 · 3 generations on6descendants
- K120553ESPINNlt Spine, Ltd. · 2012 · 4 generations on2descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K000046 | Knight Endoscopic Spine System (Kess) | Richard Wolf Medical Instruments Corp. | 2000 | — |
| +1 | K081051 | Spinevu Endoscopic Spine System (Sess), Spinevu Miniscope | Spine View, Inc. | 2008 | — |
| +2 | K102733 | Vision-Sciences Ent-5000 Video Ent Scope with Endosheath Technology… | Vision-Sciences, Inc. | 2011 | — |
| +2 | K090278 | Enspire Debrider System | Spine View, Inc. | 2009 | — |
| +3 | K110992 | Enspire Debrider System | Spine View, Inc. | 2011 | — |
| +4 | K120553 | ESPIN | Nlt Spine, Ltd. | 2012 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2011 | 2 | 0 |
| 2012 | 6 | 0 |
| 2013 | 2 | 0 |
| 2015 | 3 | 0 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in HRX? 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 HRX device
- #1 K260203 Fule Vertebroplasty Balloon Catheterscore 14.9 · 11 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 has not posted a summary or statement for it, so its predicates are not known.
What descends from it? (17)
See all 171 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K081051 | Spinevu Endoscopic Spine System (Sess), Spinevu Miniscope | 2008 | 16 |
Has anything in its family been recalled? (0 Class I)
No FDA recall names this device.
No ancestor or descendant has a Class I recall.
What does this lineage say?
- Of its descendants, K081051 (Spine View, Inc., 2008) has gone furthest, with 16 descendants of its own.
How does its category compare?
All HRX devicesHRX Arthroscope: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · HRX
9in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · HRX
107in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · HRX
1in 2024
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · HRX
2,076in 2025
MAUDE reports naming product code HRX, 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 | 7 | 89 | 3 | 421 |
| 2008 | 9 | 115 | 13 | 441 |
| 2009 | 11 | 139 | 23 | 558 |
| 2010 | 9 | 114 | 12 | 612 |
| 2011 | 3 | 84 | 6 | 631 |
| 2012 | 11 | 102 | 0 | 778 |
| 2013 | 12 | 90 | 4 | 678 |
| 2014 | 9 | 140 | 0 | 802 |
| 2015 | 4 | 132 | 7 | 763 |
| 2016 | 8 | 89 | 0 | 469 |
| 2017 | 4 | 97 | 0 | 934 |
| 2018 | 12 | 101 | 1 | 1,581 |
| 2019 | 12 | 45 | 0 | 1,676 |
| 2020 | 7 | 141 | 0 | 1,706 |
| 2021 | 7 | 57 | 3 | 1,908 |
| 2022 | 3 | 89 | 0 | 1,406 |
| 2023 | 4 | 249 | 0 | 1,852 |
| 2024 | 6 | 110 | 1 | 2,427 |
| 2025 | 9 | 107 | 0 | 2,076 |
| 2026 | 7 | 217 | 0 | — |
https://510kreport.com/device/K000046 · printed Nov 6, 2026
Cite this page
510(k) Report. “K000046: Knight Endoscopic Spine System (Kess).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K000046
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Record history
- FDA decision record loaded May 2, 2026
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026