Medical devices with battery removal

1. A battery-powered medical device comprising:

an outer housing having an opening formed therein;

a power source housed within the outer housing, the outer housing being configured to at least partially enclose the power source so as to prevent contamination of the power source with biohazardous materials, and the 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 power source within the outer housing, and

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

wherein:

the cover is configured to be operated by a user to expose the opening in the outer housing,

when the cover is operated to expose the opening, the actuator is configured to physically remove the power source from the outer housing, the outer housing is configured to release the power source via the opening without requiring physical contact between the user and the power source, and the outer housing is further configured to provide a direct path for release of the power source via the opening, such path providing no contact with contaminated surfaces of the medical device,

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

the medical device comprises an illumination assembly including at least one light source and the power source for powering the at least one light source, and

the outer housing comprises a handle portion and at least one blade portion coupled to the handle portion, with the power source being housed in one of the handle portion and the blade portion.

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

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

4. The battery-powered medical device in accordance with claim 1 , wherein the medical device is a disposable single-use medical device, the removable 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.

5. The battery-powered medical device in accordance with claim 4 , wherein:

the outer housing comprises a handle portion having a first end and a second end;

the opening in the outer housing is formed in the first end; and

the power source is housed in the handle portion at a position closer to the second end than to the first end.

6. The battery-powered medical device in accordance with claim 1 , wherein:

the outer housing is a handle portion of the medical device and the medical device further comprises an operative portion coupled to a proximal end of the handle portion;

a distal end of the handle portion forms the opening in the outer housing; and

the power source is biased against the cover covering the opening so that when the cover is operated to expose the opening, the removable power source is ejected from the handle portion.

7. The battery-powered medical device in accordance with claim 6 , 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 7 , further comprising a compartment for partially enclosing the power source, the compartment being at least partially enclosed by the handle portion 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. A battery-operated medical device comprising:

an outer housing having an opening formed therein;

a power source housed within the outer housing so as to prevent contamination of the power source with biohazardous materials; and

a holder retained within the outer housing and configured to be movable from a first position to a second position within the outer housing relative to the outer housing, the holder being further configured to partially enclose the power source and to hold the power source within the outer housing when the holder is in the first position, and further configured to release the power source from the outer housing via the opening when the holder is in the second position,

wherein, when the holder is in the second position, the outer housing and the holder are structured to cause the power source to be released from the outer housing while the holder remains connected to the medical device,

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

wherein the outer housing comprises a handle portion and at least one blade portion extending from the handle portion.

10. The battery-operated medical device in accordance with claim 9 , wherein the holder is configured to be inhibited from being moved from the second position to the first position.

11. The battery-operated medical device in accordance with claim 9 , wherein when the holder is in the first position, the holder and the outer housing are configured to hold the power source between the holder and an inner wall of the outer housing, and when the holder is in the second position, the holder and the outer housing are configured to release the power source through a space between the holder and the inner wall of the outer housing.

12. The battery-operated medical device in accordance with claim 11 , wherein the inner wall of the outer housing includes a projection configured to abut the power source held by the holder in the first position.

13. The battery-operated medical device in accordance with claim 11 , wherein the holder has a substantially C-shaped cross-section.

14. The battery-operated medical device in accordance with claim 11 , wherein:

the outer housing includes a handle portion having a proximal end and a distal end, with the opening in the outer housing being formed in the distal end of the handle portion, and

the holder is configured to hold the power source within the handle portion in the first position.

15. The battery-operated medical device in accordance with claim 14 , wherein in the first position, the holder is configured to hold the power source in the handle portion at a position closer to the proximal end of the handle portion than to the distal end of the handle portion.

16. The battery-operated medical device in accordance with claim 15 , further comprising an actuator configured to be operated by a user to move the holder from the first position to the second position and wherein:

the actuator is coupled to the holder and extends from the proximal end of the handle portion in the first position of the holder, and

the actuator is configured to be pushed by the user into the proximal end of the handle portion so as to move the holder to the second position.

17. The battery-operated medical device in accordance with claim 9 , wherein the holder comprises a compartment for partially enclosing the power source and having an open side configured to communicate with the opening in the outer housing when the compartment is in the second position, and wherein the compartment is at least partially enclosed by the outer housing.

18. The battery-operated medical device in accordance with claim 17 , wherein the compartment includes a sidewall configured to cover the opening in the outer housing when the compartment is in the first position, and wherein the compartment is configured to pivot into the second position so that the open side of the compartment is in communication with the opening in the outer housing.

19. The battery-operated medical device in accordance with claim 18 , wherein the outer housing comprises a handle portion, a blade portion and a curved portion connecting the handle portion to the blade portion, and wherein the opening is formed in one of the handle portion, the blade portion and the curved portion.

20. The battery-operated medical device in accordance with claim 9 , wherein the medical device comprises an illumination assembly including at least one light source and the power source for powering the at least one light source, and wherein the opening in the outer housing is formed in one of the handle portion and the blade portion.

21. A battery-operated medical device comprising:

an outer housing having an opening formed therein;

a power source housed within the outer housing so as to prevent contamination of the power source with biohazardous materials; and

a holder configured to be movable from a first position to a second position relative to the outer housing, the holder being further configured to partially enclose the power source and to retain the power source within the outer housing when the holder is in the first position, and further configured to release the power source from the outer housing via the opening when the holder is in the second position,

wherein at least one of the outer housing and the holder is configured to prevent replacement of the power source after the power source is released from the outer housing.

22. The battery-operated medical device in accordance with claim 21 , wherein:

the outer housing comprises a handle portion having a first end and a second end;

the opening in the outer housing is formed in the first end; and

the power source is housed in the handle portion at a position closer to the second end than to the first end.

23. The battery-operated medical device in accordance with claim 21 , wherein the holder is configured to be inhibited from being moved from the second position to the first position.

24. The battery-operated medical device in accordance with claim 23 , wherein the outer housing includes a locking projection configured to engage with the holder in the second position 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.

25. The battery-operated medical device in accordance with claim 23 , further comprising an actuator configured to be operated by a user to cause the holder to move from the first position to the second position by pushing the actuator into the outer housing.

26. The battery-operated medical device in accordance with claim 21 , wherein:

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

the medical device comprises an illumination assembly including at least one light source and the power source for powering the at least one light source; and

the outer housing comprises a handle portion and at least one blade portion coupled to the handle portion, with the power source being housed in one of the handle portion and the blade portion.

27. A battery-operated medical device comprising:

an outer housing having an opening formed therein;

a power source housed within the outer housing so as to prevent contamination of the power source with biohazardous materials; and

a holder configured to be movable from a first position to a second position relative to the outer housing, the holder further being configured to partially enclose the power source and to hold the power source within the outer housing when the holder is in the first position, and further configured to release the power source from the outer housing via the opening when the holder is in the second position,

wherein the holder is configured to be inhibited from being moved from the second position to the first position.

28. The battery-operated medical device in accordance with claim 27 , wherein:

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

the medical device comprises an illumination assembly including at least one light source and the power source for powering the at least one light source; and

the outer housing comprises a handle portion and at least one blade portion coupled to the handle portion, with the power source being housed in one of the handle portion and the blade portion.