510(k) Report

510(k) · Cleared

Cleared

Coronary Sinus Access Kit, Model KCS8F-01

K050808510(k) TraditionalCleared Jul 28, 2005120-day reviewClass II21 CFR 876.1500

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Cardio-Optics, Inc. · LYK Angioscope

Cleared on Jul 28, 2005 as substantially equivalent to K911278 (Olympus Corp., 1991) and 5 other predicates after a 120-day review. Its family tree reaches back 7 generations to 1989. 1 later device descends from it.

Decided
Jul 28, 2005
Review
120 days
Class
Class II
Product code
LYK
Recalls
None
Predicates
6

Its longest line of descent runs back 7 generations to K893658 (1989). 52 ancestors in all, the oldest K760385 (1976). 1 later device descends from it, 1 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 2003: 1 other ancestor2001: 2 other ancestors1996: 4 other ancestors1991: 2 other ancestors1986: 2 other ancestors1998: 1 other ancestor1995: 5 other ancestors2002: 2 other ancestors1994: 5 other ancestors1999: 2 other ancestors1992: 4 other ancestors1990: 5 other ancestors1980: 1 other ancestor1976: 1 other ancestor1993: 1 other ancestor1988: 1 other ancestor1987: 3 other ancestors1985: 2 other ancestors1977: 1 other ancestor2006: 1 descendant clearedK893658 · Percutaneous Introducer · Medamicus, Inc. · 1989K965167 · Percutaneous Venous Introducer 10264 · Medamicus, Inc. · 1997K012130 · Attain LDS 6216 Left-Heart Delivery System · Medtronic Vascular · 2001K013517 · 10600 Deflectable Catheter System, Model 10600 · Medtronic Vascular · 2002×2: 2 generations cleared close together, K031211 (2003), K032622 (2003) K042381 · Coronary Sinus Visualization System, Model CSVS5508 · Acumen Medical, Inc. · 200419801990200020102020
  1. Root · 7 generations backK893658 Percutaneous IntroducerMedamicus, Inc. · 1989
  2. 6 generations backK965167 Percutaneous Venous Introducer 10264Medamicus, Inc. · 1997
  3. 5 generations backK012130 Attain LDS 6216 Left-Heart Delivery SystemMedtronic Vascular · 2001
  4. 4 generations backK013517 10600 Deflectable Catheter System, Model 10600Medtronic Vascular · 2002
  5. 3 generations backK031211 Attain Prevail Steerable Catheter Set, Model 6228CTHMedtronic Vascular · 2003
  6. 2 generations backK032622 Attain Prevail Left Heart Delivery System Moddel, 6228SYSMedtronic Vascular · 2003
  7. 1 generation backK042381 Coronary Sinus Visualization System, Model CSVS5508Acumen Medical, Inc. · 2004
  8. This deviceK050808 Coronary Sinus Access Kit, Model KCS8F-01Cardio-Optics, Inc. · 2005
  9. Descendant · cites it directly · 0 of its ownK062340 Cardiooptics Augmentative Cardiac Optical Imaging SystemCardio-Optics, Inc. · 2006

Most influential descendants

Showing 1 of 1 · See all
  • K062340Cardiooptics Augmentative Cardiac Optical Imaging SystemCardio-Optics, Inc. · 2006 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−7K893658Percutaneous IntroducerMedamicus, Inc.1989—
−6K965167Percutaneous Venous Introducer 10264Medamicus, Inc.1997—
−5K012130Attain LDS 6216 Left-Heart Delivery SystemMedtronic Vascular2001—
−4K01351710600 Deflectable Catheter System, Model 10600Medtronic Vascular2002—
−3K031211Attain Prevail Steerable Catheter Set, Model 6228CTHMedtronic Vascular2003—
−2K032622Attain Prevail Left Heart Delivery System Moddel, 6228SYSMedtronic Vascular2003—
−1K042381Coronary Sinus Visualization System, Model CSVS5508Acumen Medical, Inc.2004—
0 (this device)K050808Coronary Sinus Access Kit, Model KCS8F-01Cardio-Optics, Inc.2005—
+1K062340Cardiooptics Augmentative Cardiac Optical Imaging SystemCardio-Optics, Inc.2006—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
197610
197710
198010
198520
198620
198730
198810
199050
199120
199240
199310
199450
199550
199640
199810
199920
200120
200220
200310

Descendants by year cleared

Year clearedDevicesWith a Class I recall
200610
FIG. 1 — Lineage of K050808, 1989–2006Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

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 LYK? 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 LYK device

  1. #1 K253842 Vena MicroAngioscope™ Systemscore 10.8 · 1 generation · no Class I recall
  2. #2 Held for the reportin the report
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What was it cleared against? (6)

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.

TypeNumberDeviceApplicantDecidedRecalls
*K911278Olympus AF Angioscope System
Summary page 1
…scope Product code LYK, CFR Section 876.1500 Predicate Devices: Primary Predicate Devices: Olympus Angioscopes, K91 1278 & K860858 Product code LYK, CFR Section 876.1500 Additional Predicate Devic…
Olympus Corp.19911
*K860858Olympus PF-18 & PF-25 Ultrathin Angioscope
Summary page 1
…Product code LYK, CFR Section 876.1500 Predicate Devices: Primary Predicate Devices: Olympus Angioscopes, K91 1278 & K860858 Product code LYK, CFR Section 876.1500 Additional Predicate Devices:'…
Olympus Corp.1986—
*K955817Coridis Webster Deflectable Braided-Tip Electrode Catheter
Summary page 1
…Product code LYK, CFR Section 876.1500 Additional Predicate Devices:' Biosense Webster CS Deflectable Catheter K955817 Product code DRF, CFR Section 870.1220 St. Jude Medical Apeel TM CS Guide S…
Cordis Webster, Inc.1996—
*K031906Apeel CS Catheter Delivery System
Summary page 1
…er CS Deflectable Catheter K955817 Product code DRF, CFR Section 870.1220 St. Jude Medical Apeel TM CS Guide Sheath K031906 Product code DYB, CFR Section 870.1340 Thomas Medical SafeSheath TM CS Shea…
St Jude Medical2003—
*K003731Safesheath MSP Introducer Sheath Kit with Integral Hemostasis Valve
Summary page 1
…cal Apeel TM CS Guide Sheath K031906 Product code DYB, CFR Section 870.1340 Thomas Medical SafeSheath TM CS Sheaths K003731 Product code DYB, CFR Section 870.1340 Acumen Coronary Sinus Visualization…
Thomas Medical Products, Inc.20016
*K042381Coronary Sinus Visualization System, Model CSVS5508
Summary page 1
…SafeSheath TM CS Sheaths K003731 Product code DYB, CFR Section 870.1340 Acumen Coronary Sinus Visualization System, K042381 Product code DQY, CFR Section 870.1250 Device Description: The Coronary Sinus Access (CSA TM)…
Acumen Medical, Inc.2004—

Also cleared against K911278: 3 other devices →

What descends from it? (1)

1 later device cites it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K062340Cardiooptics Augmentative Cardiac Optical Imaging SystemCardio-Optics, Inc.20060

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?

  • The line of descent spans 16 years and passes through 4 companies; a new generation was cleared every 1.2 years on median.
  • 8 of the 52 ancestors have a recall of any class.
  • Of its descendants, K062340 (Cardio-Optics, Inc., 2006) has gone furthest, with 0 descendants of its own.
  • 3 other devices also cite its predicate K911278.

How does its category compare?

All LYK devices

LYK Angioscope: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · LYK

1in 2025

2025: 12026 (partial year): 1
2007high 1 (2025) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · LYK

Too few LYK 510(k)s in any year since 2007 to give a median.

Recalls per year · LYK

No recall names LYK since 2007.

Adverse event reports per year · LYK

1in 2024

2010: 12013: 22017: 12024: 1
2007high 2 (2013) · low 0 (2007)2025

MAUDE reports naming product code LYK, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20070—00
20080—00
20090—00
20100—01
20110—00
20120—00
20130—02
20140—00
20150—00
20160—00
20170—01
20180—00
20190—00
20200—00
20210—00
20220—00
20230—00
20240—01
20251—00
20261—0—

What is it indicated for?

The CardioOptics Coronary Sinus Access (CSATM ) System is intended to provide subclavian access to the right heart for accessing the coronary sinus and placing a guide sheath suitable for pacemaker lead implantation into the coronary sinus. The system includes visualization means to image anatomical structures to augment navigation.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K050808: Coronary Sinus Access Kit, Model KCS8F-01.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K050808

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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