Medical devices with battery removal

1. A battery-powered medical device comprising:

an outer housing having an opening formed therein;

at least one power source housed within the outer housing, the outer housing being configured to at least partially enclose the at least one power source so as to prevent contamination of the at least one power source with biohazardous materials, and the at least one power source being removable from the outer housing via the opening;

a cover configured to cover the opening in the outer housing and to retain the at least one power source within the outer housing, and

an actuator provided within the outer housing that directly engages with a portion of the at least one power source when the cover covers the opening in the outer housing,

wherein:

the cover is configured to be operated to expose the opening in the outer housing, and when the cover is operated to expose the opening, the actuator is configured to physically remove the at least one power source from the outer housing and the outer housing is configured to release the at least one power source via the opening without requiring physical contact between the user and the at least one power source,

the actuator loops around a portion of the at least one power source and is configured to pull the power source out of the outer housing when the cover is opened,

the medical device is one of a speculum, a retractor, an anoscope and a laryngoscope, and

the outer housing comprises a handle and at least one blade coupled to the handle.

2. The battery-powered medical device in accordance with claim 1 , wherein the at least one power source is housed in one of the handle and the blade.

3. The battery-powered medical device in accordance with claim 1 , further comprising an illumination assembly including at least one light source and the at least one power source for powering the at least one light source.

4. The battery-powered medical device in accordance with claim 1 , further comprising a spring biasing the at least one power source in a direction of the cover when the cover covers the opening in the outer housing.

5. The battery-powered medical device in accordance with claim 1 , wherein the actuator comprises a band disposed around a portion of the at least one power source and configured pull the at least one power source via the opening in the outer housing when the cover is operated to expose the opening.

6. The battery-powered medical device in accordance with claim 1 , wherein the medical device is a disposable single-use medical device, the at least one power source comprises one or more non-rechargeable single-use batteries, and the outer housing is configured to prevent replacement of the power source after the power source is released therefrom.

7. The battery-powered medical device in accordance with claim 1 , further comprising a lock configured to retain the cover in a first position covering the opening and configured to be operated by the user to release the cover from the first position to a second position so as to expose the opening.

8. The battery-powered medical device in accordance with claim 1 , further comprising a compartment for partially enclosing the power source, the compartment being at least partially enclosed by the handle and having an open side configured to communicate with the opening in the handle portion,

wherein the cover is engaged with one or more of the compartment and the outer housing.

9. The battery-powered medical device in accordance with claim 1 , wherein the cover is continuous with the outer housing when the cover covers the opening.

10. A battery-powered medical device comprising:

an outer housing having an opening therein;

at least one power source provided within the outer housing; and

a retention/ejection mechanism configured to prevent the at least one power source from being released via the opening even when the opening is uncovered and to be operated to cause the at least one power source to be released from the outer housing separately from other components via the opening.

11. The battery-powered medical device in accordance with claim 10 , wherein the outer housing further comprises a handle and an operative portion, the at least one power source is provided within the handle and the handle has the opening in a distal end thereof.

12. The battery-powered medical device in accordance with claim 11 , wherein the at least one power source is provided in the handle closer to a proximal end of the handle than to the distal end of the handle.

13. The battery-powered medical device in accordance with claim 10 , wherein the retention/ejection mechanism comprises a holder for holding the at least one power source so as to prevent the at least one power source from being released via the opening in a first position, said holder being configured to move to a second position to release the at least one power source from the handle via the opening.

14. The battery-powered medical device in accordance with claim 13 , wherein in the first position, the holder is configured to partially enclose the at least one power source and to hold the at least one power source against an inner wall of the outer housing and in the second position, the holder is configured to release the at least one power source through a space between the holder and the inner wall of the outer housing.

15. The battery-powered medical device in accordance with claim 14 , wherein the holder has a substantially C-shaped cross-section.

16. The battery-powered medical device in accordance with claim 13 , wherein the retention/ejection mechanism further comprises an actuator configured to be operated to move the holder from the first position to the second position.

17. The battery-powered medical device in accordance with claim 16 , wherein the actuator is coupled to the holder and extends from the outer housing in the first position and is configured to be pushed into the outer housing to move the holder to the second position.

18. The battery-powered medical device in accordance with claim 13 , wherein the retention/ejection mechanism is configured to inhibit the holder from being moved from the second position to the first position.

19. The battery-powered medical device in accordance with claim 18 , wherein the holder is configured to engage with the outer housing in the second position so as to prevent removal of the holder from the outer housing and to inhibit moving of the holder from the second position to the first position.

20. The battery-powered medical device in accordance with claim 10 , wherein the at least one power source is provided within the outer housing at a position away from the opening.

21. The battery-powered medical device in accordance with claim 10 , wherein the retention/ejection mechanism is configured to prevent replacement of the at least one power source after the at least one power source has been released from the outer housing.

22. The battery-powered medical device in accordance with claim 10 , wherein the medical device is one of a retractor, a speculum, an anoscope and a laryngoscope and the outer housing comprises a handle and at least one blade extending from the handle.

23. A battery-powered medical device comprising:

an outer housing having a proximal end and a distal end and an opening formed at the distal end thereof;

at least one power source provided within the outer housing at a position away from the opening in a direction toward the proximal end of the outer housing and forming a gap between the at least one power source and the opening; and

an ejection mechanism configured to cause the at least one power source to be released from the outer housing via the opening.

24. The battery-powered medical device in accordance with claim 23 , wherein the outer housing is configured to prevent the at least one power source from being released via the opening and the ejection mechanism is configured to be operated to release the at least one power source from the outer housing.

25. The battery-powered medical device in accordance with claim 23 , further comprising a holder retained within the outer housing, said holder being configured to hold the at least one power source within the outer housing at the position away from the opening.

26. The battery-powered medical device in accordance with claim 25 , wherein the ejection mechanism is configured to move the holder from a first position in which the holder holds the at least one power source within the outer housing to a second position in which the at least one power source is released from the outer housing.

27. The battery-powered medical device in accordance with claim 23 , ejection mechanism is configured to prevent replacement of the at least one power source after the at least one power source has been released from the outer housing.

28. The battery-powered medical device in accordance with claim 23 , wherein the medical device is one of a retractor, a speculum, an anoscope and a laryngoscope and the outer housing comprises a handle and at least one blade extending from the handle.

29. A battery-powered medical device comprising:

an outer housing having an uncovered opening therein;

at least one power source provided within the outer housing; and

an ejection mechanism configured to cause the at least one power source to be released from the outer housing via the uncovered opening,

wherein the uncovered opening in the outer housing remains uncovered by any component while the at least one power source is retained within the outer housing.

30. The battery-powered medical device in accordance with claim 29 , wherein the medical device is one of a retractor, a speculum, an anoscope and a laryngoscope and the outer housing comprises a handle and at least one blade extending from the handle.