510(k) · Cleared
Recalled · Class II · 2020PK J-Hook
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Gyrus Acmi, Inc. · GEI Electrosurgical, Cutting & Coagulation & Accessories
Cleared on Jan 8, 2015 as substantially equivalent to K050460 (Gyrus Medical, Inc., 2005) after a 139-day review. Its family tree reaches back 10 generations to 1994. 1 later device descends from it. It has been recalled once.
- Decided
- Jan 8, 2015
- Review
- 139 days
- Class
- Class II
- Product code
- GEI
- Recalls
- 1
- Predicates
- 1
Its longest line of descent runs back 10 generations to K936109 (1994). 68 ancestors in all, the oldest K800617 (1980). 1 later device descends from it, 1 citing it directly.
- Root · 10 generations backK936109 Sharplan Model 1120 CO2 Surgical LaserSharplan Lasers, Inc. · 1994
- 6 generations between
- 3 generations backK021777 Gyrus Ent Cogent 2/G2 System (Generator,Accessories Somnoplasty…Gyrus Ent LLC · 2002
- 2 generations backK041285 Gyrus G3 System (Generator, Assessories, Somnoplasty Electrodes and…Gyrus Medical, Ltd. · 2004 · Recalled
- 1 generation backK050460 Gyrus Plasmacision and Plasmablend ElectrodesGyrus Medical, Inc. · 2005
- This deviceK142350 PK J-HookGyrus Acmi, Inc. · 2015
- Descendant · cites it directly · 0 of its ownK213831 Olympus PK Electrosurgical Instruments, PK J-hook, PK Spatula, PK…Gyrus Acmi, Inc. · 2022
Show all 10 generations
- Root · 10 generations backK936109 Sharplan Model 1120 CO2 Surgical LaserSharplan Lasers, Inc. · 1994
- 9 generations backK960521 Sharplan Lasers, Inc. Silktouch Flash ScannerSharplan Lasers, Inc. · 1996
- 8 generations backK963339 Coherent Ultrapulse CO2 Surgical LasersCoherent Medical Group · 1997
- 7 generations backK974789 Coherent Ultrapulse S Series CO2 Surgical Lasers Model C and LLumenis, Inc. · 1998
- 6 generations backK990947 Modified Versapulse Select Single Wavelength, HO: Yag and Dual…Lumenis, Inc. · 1999
- 5 generations backK011703 Lumenis Versapulse Powersuite Holmium (HO:Yag) and Dual Wavelength…Lumenis · 2001 · Recalled
- 4 generations backK014290 Entec Plasma WandsArthrocare Corp. · 2002
- 3 generations backK021777 Gyrus Ent Cogent 2/G2 System (Generator,Accessories Somnoplasty…Gyrus Ent LLC · 2002
- 2 generations backK041285 Gyrus G3 System (Generator, Assessories, Somnoplasty Electrodes and…Gyrus Medical, Ltd. · 2004 · Recalled
- 1 generation backK050460 Gyrus Plasmacision and Plasmablend ElectrodesGyrus Medical, Inc. · 2005
- This deviceK142350 PK J-HookGyrus Acmi, Inc. · 2015
Most influential descendants
Showing 1 of 1 · See all- K213831Olympus PK Electrosurgical Instruments, PK J-hook, PK Spatula, PK NeedleGyrus Acmi, Inc. · 2022 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −10 | K936109 | Sharplan Model 1120 CO2 Surgical Laser | Sharplan Lasers, Inc. | 1994 | — |
| −9 | K960521 | Sharplan Lasers, Inc. Silktouch Flash Scanner | Sharplan Lasers, Inc. | 1996 | — |
| −8 | K963339 | Coherent Ultrapulse CO2 Surgical Lasers | Coherent Medical Group | 1997 | — |
| −7 | K974789 | Coherent Ultrapulse S Series CO2 Surgical Lasers Model C and L | Lumenis, Inc. | 1998 | — |
| −6 | K990947 | Modified Versapulse Select Single Wavelength, HO: Yag and Dual Wavelength, HO… | Lumenis, Inc. | 1999 | — |
| −5 | K011703 | Lumenis Versapulse Powersuite Holmium (HO:Yag) and Dual Wavelength… | Lumenis | 2001 | 2 |
| −4 | K014290 | Entec Plasma Wands | Arthrocare Corp. | 2002 | — |
| −3 | K021777 | Gyrus Ent Cogent 2/G2 System (Generator,Accessories Somnoplasty Electrodes and… | Gyrus Ent LLC | 2002 | — |
| −2 | K041285 | Gyrus G3 System (Generator, Assessories, Somnoplasty Electrodes and… | Gyrus Medical, Ltd. | 2004 | 2 |
| −1 | K050460 | Gyrus Plasmacision and Plasmablend Electrodes | Gyrus Medical, Inc. | 2005 | — |
| 0 (this device) | K142350 | PK J-Hook | Gyrus Acmi, Inc. | 2015 | — |
| +1 | K213831 | Olympus PK Electrosurgical Instruments, PK J-hook, PK Spatula, PK Needle | Gyrus Acmi, Inc. | 2022 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1980 | 1 | 0 |
| 1986 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 7 | 0 |
| 1996 | 8 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 1 | 0 |
| 2000 | 10 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2022 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in GEI? 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 GEI device
- #1 K231790 The InMode System with the Morpheus8 Applicatorsscore 32.7 · 21 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (1)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K050460 | Gyrus Plasmacision and Plasmablend ElectrodesSummary page 4…Electrosurgical cutting and coagulation device Predicate Devices Gyrus Plasmacision and Plasmablend K050460 Electrodes 10… | 2005 |
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 |
|---|---|---|---|
| K213831 | Olympus PK Electrosurgical Instruments, PK J-hook, PK Spatula, PK Needle | 2022 | 0 |
Has anything in its family been recalled? (0 Class I)
Recalls of this device
| Date | Class | Recall | Root cause | Reason |
|---|---|---|---|---|
| Oct 23, 2020 | Class II | Z-0472-2021 | Under Investigation by firm | Stryker has discovered a characterization issue associated with the Mako Integrated Cutting System (MICS) Handpiece. The MICS Handpiece is attached to the distal end of the robotic arm and is used to register the RIO and to execute bone… |
No ancestor or descendant has a Class I recall.
What does this lineage say?
- The line of descent spans 21 years and passes through 9 companies; a new generation was cleared every 1.1 years on median.
- 3 of the 68 ancestors have a recall of any class.
- Of its descendants, K213831 (Gyrus Acmi, Inc., 2022) has gone furthest, with 0 descendants of its own.
- 1 other device also cites its predicate K050460.
How does its category compare?
All GEI devicesGEI Electrosurgical, Cutting & Coagulation & Accessories: FDA decisions, review times, recalls and adverse event reports over 20 years. 2015, this device’s year, is highlighted.
FDA decisions per year · GEI
52in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · GEI
113in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · GEI
4in 2025
Class I (14 since 2007) Class II/III not classified
Adverse event reports per year · GEI
7,592in 2025
MAUDE reports naming product code GEI, 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 | 50 | 51 | 21 | 2,795 |
| 2008 | 61 | 71 | 19 | 2,556 |
| 2009 | 42 | 130 | 27 | 3,591 |
| 2010 | 46 | 109 | 51 | 3,377 |
| 2011 | 35 | 135 | 32 | 4,463 |
| 2012 | 39 | 133 | 30 | 5,216 |
| 2013 | 48 | 136 | 13 | 4,897 |
| 2014 | 49 | 103 | 3 | 4,908 |
| 2015 | 47 | 123 | 4 | 4,936 |
| 2016 | 64 | 108 | 3 | 5,616 |
| 2017 | 52 | 72 | 2 | 6,073 |
| 2018 | 47 | 93 | 6 | 6,545 |
| 2019 | 48 | 93 | 5 | 7,067 |
| 2020 | 59 | 105 | 1 | 6,490 |
| 2021 | 46 | 146 | 6 | 6,354 |
| 2022 | 55 | 150 | 49 | 6,103 |
| 2023 | 65 | 104 | 27 (4) | 7,176 |
| 2024 | 59 | 125 | 22 (10) | 7,897 |
| 2025 | 52 | 113 | 4 | 7,592 |
| 2026 | 43 | 183 | 8 | — |
What is it indicated for?
The PK J-Hook is indicated for resection and coagulation of soft tissue and blood vessels in laparoscopic and general surgical procedures when used with the Olympus ESG-400 Generator.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K142350 · printed Nov 6, 2026
Cite this page
510(k) Report. “K142350: PK J-Hook.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K142350
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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