# CBQ: Analyzer, Gas, Enflurane, Gaseous-Phase (Anesthetic Concentration)

- Device class: 2; regulation: 21 CFR 868.1500; FDA's rule: 510(k) required
- FDA decisions: 22
- Recalls: 0 (0 Class I)
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026; MAUDE to Sep 30, 2026

## Decisions per year (last 10)
- 1986: 3
- 1988: 2
- 1989: 3
- 1990: 1
- 1991: 2
- 1992: 2
- 1993: 6
- 1997: 1
- 2000: 1
- 2004: 1

## Most-cited predicates
- K040917: Philips Anesthesia Gas Monitor, Model M1026B (2004), cited by 3
- K994188: Modification to Agilent Technologies Anesthesia Gas Monitor, Model M1026A #CO5 (2000), cited by 2
- K922876: AS/3 Cop Module (1993), cited by 1
- K890606: Ohmeda 5330 Agent Monitor (1989), cited by 1
- K903104: Capnomac Ultima (TM) Anesthesia Monitor (1991), cited by 1
- K931439: Ohmeda Model 5330 Anesthetic Monitor (1993), cited by 1
- K892646: Biochem 8100 Anesthetic Agent Monitor (1989), cited by 1
- K923276: Capnomac Ultima Anesthesia Monitor (1993), cited by 1

Source page: https://510kreport.com/product-code/CBQ
Data by year (CSV): https://510kreport.com/product-code/CBQ.csv