Apparatus for deactivating instruments and devices

Abstract
An apparatus for deactivating medical instruments and devices, comprised of a decontamination chamber dimensioned to receive medical instruments and devices to be microbially deactivated. A circulation system is provided to circulate a deactivating fluid through the deactivation chamber. The circulation system has a first fluid path connected to the decontamination chamber and a second fluid path is connected to the first fluid path. A water inlet line introduces water into the apparatus. The water inlet line is connected to the second fluid path. A filter is disposed within the second fluid path to filter fluid within the apparatus. A first pump is disposed in the first fluid path to circulate fluid in the first fluid path. A second pump is disposed in the second fluid path to circulate fluid in the second fluid path.
Description

BRIEF DESCRIPTION OF THE DRAWINGS

The invention may take physical form in certain parts and arrangement of parts, a preferred embodiment of which will be described in detail in the specification and illustrated in the accompanying drawings which form a part hereof, and wherein:



FIG. 1 is a perspective view of an automated reprocessor for microbially deactivating medical instruments, according to the present invention;



FIG. 2 is a perspective view of the reprocessor of FIG. 1, showing a movable drawer in an opened position and an instrument container removed therefrom, and also showing an access panel to a chemistry delivery system in an opened position and a chemistry container remover therefrom;



FIG. 3 is a side, elevational view of the reprocessor of FIG. 1, showing the reprocessor on a counter top relative to a user;



FIG. 4 is a schematic diagram of the reprocessor shown in FIG. 1;



FIG. 5 is a schematic diagram of the reprocessor, illustrating the path of fluids through the reprocessor during a reprocessor fill phase;



FIG. 6 is a schematic diagram of the reprocessor, illustrating the path of fluids through the reprocessor during a system circulate phase;



FIG. 7 is a schematic diagram of the reprocessor, illustrating the path of fluids through the reprocessor during a chemistry generation phase;



FIG. 8 is a schematic diagram of the reprocessor, illustrating the path of fluids through the reprocessor during an instrument exposure phase;



FIG. 9A is a schematic diagram of the reprocessor, illustrating the path of fluids through the reprocessor during a first part of a drain phase;



FIG. 9B is a schematic diagram of the reprocessor, illustrating the path of fluids through the reprocessor during a second part of the drain phase;



FIG. 10 is a sectional view of a filter element from the reprocessor shown in FIG. 1;



FIG. 11 is a sealed package containing a chemistry-holding device that is used in the reprocessor shown in FIG. 1;



FIG. 12 is a sectional view taken along lines 12-12 of FIG. 11;



FIG. 13 is a sectional view of a chemistry-delivery system used in the reprocessor shown in FIG. 1, showing the chemistry-delivery system in an open position;



FIG. 14 is a sectional view taken along lines 14-14 of FIG. 13;



FIG. 15 is a sectional view taken along lines 15-15 of FIG. 13;



FIG. 16 is a partially sectioned, side-elevational view of the chemistry-delivery system, showing a chemistry-holding device disposed therein;



FIG. 17 is a sectional view of the chemistry-delivery system in operation;



FIG. 18 is a cross-sectional view of a drawer assembly from the apparatus show in FIG. 1;



FIG. 19 is an enlarged view, showing a connector assembly for the drawer assembly show in FIG. 18;



FIG. 20 is a sectional view taken along lines 20-20 of FIG. 19;



FIG. 21 is a sectional view taken along lines 21-21 of FIG. 19;



FIG. 22 is a sectional view taken along lines 22-22 of FIG. 19;



FIG. 23 is a partially sectioned view of the connector assembly shown in FIG. 19;



FIG. 24 is a top plan view of an instrument storage container used in the apparatus shown in FIG. 1;



FIG. 25 is a sectional view taken along lines 25-25 of FIG. 24, showing a valve assembly in an opened position;



FIG. 26 is a sectional view of the valve assembly shown in FIG. 25, showing the valve assembly in a closed position;



FIG. 27 is a sectional view taken along lines 27-27 of FIG. 24, showing a seal arrangement on the instrument storage container;



FIG. 28 is a perspective view of a storage cabinet for storing decontaminated instrument containers, illustrating another aspect of the present invention;



FIG. 29A is a sectional view of an alternate embodiment of a valve assembly, showing the valve assembly in a first position;



FIG. 29B is a partially sectioned view of the valve assembly of FIG. 29A, showing the valve assembly in a second position;



FIG. 29C is partially section view taken along lines 29C-29C of FIG. 29B, showing a filter element; and



FIG. 29D is a perspective view of the filter element.


Claims
  • 1. An apparatus for deactivating medical instruments and devices, comprised of: a decontamination chamber;a circulation system fluidly connected to said decontamination chamber and to a source for a microbial deactivation fluid, said circulation system having a first circulation flow path and second circulation flow path;a high-flow, low-pressure pump disposed in said first circulation flow path, said high-flow, low-pressure pump operable to pump fluid at a flow rate greater than about 7 gallons per minute at a fluid pressure of less than about 14 psig;a filter membrane disposed in said second circulation flow path; anda low-flow, high-pressure pump disposed in said second circulation flow path, said low-flow, high-pressure pump operable to pump fluid at a flow rate less than about 6 gallons per minute at a pressure greater than about 20 psig of fluid pressure.
  • 2. An apparatus as defined in claim 1 wherein said high-flow, low-pressure pump is operable to pump fluid at a flow rate between about 8 gallons per minute and about 12 gallons per minute.
  • 3. An apparatus as defined in claim 1 wherein said low-flow, high-pressure pump is operable to pump fluid at a flow rate between about 4 gallons per minute and about 5 gallons per minute at a fluid pressure of between about 30 psig and about 50 psig.
  • 4. An apparatus as defined in claim 1 wherein said high-flow, low-pressure pump is operable to pump fluid between about 65% and about 80% of the total fluid flow in said apparatus and said low-flow, high-pressure pump is operable to pump between about 20% and about 35% of the total fluid flow in said apparatus.
  • 5. An apparatus as defined in claim 1 wherein said high-flow, low-pressure pump is operable to pump about 75% of the total fluid flow in said apparatus and said low-flow, high-pressure is operable to pump about 25% of the total fluid flow in said apparatus.
  • 6. An apparatus as defined in claim 1 further comprising: a heater element disposed in said second circulation flow path.
  • 7. An apparatus as defined in claim 1 further comprising: a chemistry delivery system disposed in said second circulation flow path.
  • 8. An apparatus as defined in claim 1 further comprising: a branch feeder line attached to said second circulation flow path, said branch feeder line fluidly connected to said medical instruments and devices in said decontamination chamber.
  • 9. An apparatus for deactivating medical instruments and devices, comprised of: a decontamination chamber;a circulation system fluidly connected to said decontamination chamber and to a source for a microbial deactivation fluid, said circulation system comprised of: a first circulation flow path communicating with said decontamination chamber wherein between about 65% and about 80% of the fluid in said circulation system flows in said first circulation flow path; anda second circulation flow path connected to said first circulation flow path, wherein between about 20% and about 35% of the fluid in said circulation system flows in said second circulation flow path;a first pump for conveying fluid in said first circulation flow path;a second pump for conveying fluid in said second circulation flow path; anda filter element disposed in said second circulation flow path.
  • 10. An apparatus as defined in claim 9, wherein said pump is a high-flow, low-pressure pump.
  • 11. An apparatus as defined in claim 10, wherein said high-flow, low-pressure pump is operable to pump fluid at a flow rate greater than about 7 gallons per minute at a fluid pressure of less than about 14 psig.
  • 12. An apparatus as defined in claim 9, where, said second pump is a low-flow, high-pressure pump.
  • 13. An apparatus as defined in claim 12, wherein said low-flow, high-pressure pump is operable to pump fluid at a flow rate less than about 6 gallons per minute at a fluid pressure greater than about 20 psig.
  • 14. An apparatus as defined in claim 12, wherein said low-flow, high-pressure pump is operable to pump fluid at a flow rate between about 4 gallons per minute and about 5 gallons per minute at a fluid pressure of between about 30 psig and about 50 psig.
  • 15. An apparatus as defined in claim 9, further comprising: heating means disposed in said second circulation flow path for heating fluid flowing in said decontamination chamber.
  • 16. An apparatus as defined in claim 9, further comprising: a chemistry delivery system connectable to said second circulation flow path.
  • 17. An apparatus as defined in claim 9 further comprising: a branch feeder line attached to said second circulation flow path, said branch feeder line fluidly connected said medical instruments and devices in said decontamination chamber.
  • 18. An apparatus for deactivating medical instruments and devices, comprised of: a decontamination chamber dimensioned to receive medical instruments and devices to be microbially deactivated;a chemistry delivery assembly for generating a deactivation fluid from dry chemistry and water;a water inlet line for introducing water into said apparatus, said water inlet line connected to said chemistry delivery system;a circulation system for circulating a deactivating fluid through said deactivation chamber, said circulation system having a first fluid path and a second fluid path;a filter disposed within said second fluid path for filtering fluid within said apparatus;a first pump disposed in said first fluid path for delivering fluid directly along said first fluid path to said deactivation chamber, said first pump operable to pump fluid at a flow rate greater than about 7 gallons per minute at a fluid pressure of less than about 14 psig; anda second pump disposed in said second fluid path for delivering fluid through said filter, said second pump operable to pump fluid at a flow rate of less than about 6 gallons per minute at a fluid pressure of greater than about 20 psig.
  • 19. An apparatus as defined in claim 18, wherein said first pump is operable to pump fluid between about 7 gallons per minute and about 15 gallons per minute at a fluid pressure of between about 5 psig and about 14 psig and said second pump is operable to pump fluid between about 2 gallons per minute and about 6 gallons per minute at a fluid pressure of between about 20 psig and about 60 psig.
  • 20. An apparatus as defined in claim 18, further comprising: a chemistry delivery assembly disposed in said second fluid path for generating said deactivation fluid.
  • 21. An apparatus as defined in claim 20, further comprising: a first fluid inlet fluidly connecting said chemistry delivery assembly to said second fluid path;a first valve controlling fluid flow along said first fluid inlet;a first fluid outlet fluidly connecting said chemistry delivery assembly to said second fluid path; anda second valve controlling fluid flow along said first fluid outlet.
  • 22. An apparatus for deactivating medical instruments and devices, comprised of: a decontamination chamber dimensioned to receive medical instruments and devices to be microbially deactivated;a circulation system for circulating a deactivating fluid through said deactivation chamber, said circulation system having a first fluid path connected to said decontamination chamber and a second fluid path connected to said first fluid path;a water inlet line for introducing water into said apparatus, said water inlet line connected to said second fluid path;a filter disposed within said second fluid path for filtering fluid within said apparatus;a first pump disposed in said first fluid path for circulating fluid in said first fluid path; anda second pump disposed in said second fluid path for circulating fluid in said second fluid path.
  • 23. An apparatus as defined in claim 22, further comprising: a chemistry delivery assembly for generating a deactivation fluid from dry chemistry and water;an fluid inlet fluidly connecting said chemistry delivery assembly to said second fluid path;an fluid outlet fluidly connecting said chemistry delivery assembly to said second fluid path;an inlet valve for controlling fluid flow along said fluid inlet; andan outlet valve for controlling fluid flow along said fluid outlet.
  • 24. An apparatus as defined in claim 22, further comprising: a branch feeder line attached to said second fluid path, said branch feeder line fluidly connected to said medical instruments and devices in said decontamination chamber.
  • 25. An apparatus as defined in claim 22, further comprising: heating means disposed in said second fluid path for heating fluid flowing in said decontamination chamber.
  • 26. An apparatus as defined in claim 22, wherein said first pump pumps about 75% of the total fluid flowing in said circulation system along said first fluid path.
Provisional Applications (1)
Number Date Country
60779461 Mar 2006 US