Keyed self-latching battery pack for a portable defibrillator
First Claim
1. A battery pack for use in a portable defibrillator having a battery well, the battery pack comprising:
- (a) a body having a front and a back;
(b) a cell having a positive terminal and a negative terminal contained within the body;
(c) a pair of conductive contacts located on the back of the body, one of the pair of conductive contacts coupled to the positive terminal of the cell and the other of the pair of conductive contacts coupled to the negative terminal of the cell;
(d) a latch located on the front of the body, the latch having a latch member that is movable between an extended position wherein the latch member protrudes from the body, and a retracted position wherein the latch member does not protrude from the body;
(e) biasing means to bias the latch member in the extended position, wherein partial insertion of the battery pack into the battery well causes the latch member to move to the retracted position, the biasing means returning the latch member to the extended position after the battery pack is fully inserted in the battery well in order to secure the battery pack in the battery well of the defibrillator; and
(f) a handle attached to the latch member, the handle being positionable by a user to manually move the latch member to the retracted position.
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0 Petitions
Accused Products
Abstract
A battery pack (28) for a portable defibrillator (30). The battery pack has a latch (34) that is biased in an extended position. When the battery pack is inserted into a battery well (30) in the portable defibrillator, the latch automatically latches into a slot (124) to secure the battery pack in tile battery well. Ridges (112) are provided on the floor (108) of the battery well to reduce the friction between the battery pack and the floor of the well as the battery pack is inserted into the defibrillator. A ridge (38) is also provided around the periphery of the top (36) of the battery pack to reduce the friction between the battery pack and the ceiling of the battery well. A right wall (44) of the battery pack is inclined from vertical so that a cross section of the battery pack is trapezoid in shape. The asymmetric cross-section prevents the battery pack from being incorrectly inserted into the battery well. The disclosed battery pack construction simplifies the replacement of the battery pack in the portable defibrillator.
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Citations
26 Claims
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1. A battery pack for use in a portable defibrillator having a battery well, the battery pack comprising:
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(a) a body having a front and a back; (b) a cell having a positive terminal and a negative terminal contained within the body; (c) a pair of conductive contacts located on the back of the body, one of the pair of conductive contacts coupled to the positive terminal of the cell and the other of the pair of conductive contacts coupled to the negative terminal of the cell; (d) a latch located on the front of the body, the latch having a latch member that is movable between an extended position wherein the latch member protrudes from the body, and a retracted position wherein the latch member does not protrude from the body; (e) biasing means to bias the latch member in the extended position, wherein partial insertion of the battery pack into the battery well causes the latch member to move to the retracted position, the biasing means returning the latch member to the extended position after the battery pack is fully inserted in the battery well in order to secure the battery pack in the battery well of the defibrillator; and (f) a handle attached to the latch member, the handle being positionable by a user to manually move the latch member to the retracted position. - View Dependent Claims (2, 3)
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4. A battery pack for use in a portable defibrillator having a battery well, the battery pack comprising:
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(a) a body having a front and a back; (b) a latch located on the front of the body, the latch having a latch member that is movable between an extended position wherein the latch member protrudes from the body, and a retracted position wherein the latch member does not protrude from the body; (c) biasing means to bias the latch member in the extended position, wherein partial insertion of the battery pack into the battery well causes the latch member to move to the retracted position, the biasing means returning the latch member to the extended position after the battery pack is fully inserted in the battery well in order to secure the battery pack in the battery well of the defibrillator; and (d) a latch handle attached to the latch member, the latch handle being movable by a user in a direction generally perpendicular to the direction of battery pack insertion so as to manually move the latch member to the retracted position. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11)
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12. A battery pack for use in a portable defibrillator having a battery well, the battery pack comprising:
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(a) a parallelepiped body having a front and a back; (b) a latch located on the front of the body, the latch having a latch member that is movable between an extended position wherein the latch member protrudes from the body and a retracted position wherein the latch member does not protrude from the body, the latch member further having an angled leading face oriented in a direction of battery pack insertion, and a trailing face oriented away from the direction of battery pack insertion; (c) biasing means to bias the latch member in the extended position, wherein partial insertion of the battery pack into the battery well causes the latch member to move to the retracted position, the biasing means returning the latch member to the extended position after the battery pack is fully inserted in the battery well in order to secure the battery pack in the battery well of the defibrillator; and (d) a latch handle that is graspable by a user to manually move the latch member to the retracted position, the latch handle being movable in a direction that is generally perpendicular to the direction of battery pack insertion.
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13. A battery pack for use in a portable defibrillator having a battery well, the battery pack comprising:
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(a) a body having a front, a back, and at least two sides, the body having an asymmetric cross section so as to prevent the battery pack from being inserted incorrectly into the battery well and so that the correct orientation to insert the battery pack into the battery well is apparent to a user; (b) a cell having a positive terminal and a negative terminal contained within the body; and (c) a pair of conductive contacts located on the back of the body, one of the pair of conductive contacts coupled to the positive terminal of the cell and the other of the pair of conductive contacts coupled to the negative terminal of the cell. - View Dependent Claims (14, 15, 16, 17)
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18. A battery pack for use in a portable defibrillator, the battery pack comprising:
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(a) a parallelepiped body having a front, a back, and at least two opposing sides, one of the sides being inclined at an angle to the opposing side so that a cross section of the body is generally trapezoidal in shape; (b) a cell having a positive terminal and a negative terminal contained within the body; and (c) a pair of conductive contacts located on the back of the body, one of the pair of conductive contacts coupled to the positive terminal of the cell and the other of the pair of conductive contacts coupled to the negative terminal of the cell.
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19. A battery pack for use in a portable defibrillator having a battery well with an asymmetric cross section, the battery pack comprising:
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(a) a body having a front and a back, the body having an asymmetric cross section of the same general shape as the asymmetric cross section of the battery well; (b) a latch located on the front of the body, the latch having a latch member that is movable between an extended position wherein the latch member protrudes from the body, and a retracted position wherein the latch member does not protrude from the body; and (c) biasing means to bias the latch member in the extended position, wherein partial insertion of the battery pack into the battery well causes the latch member to move to the retracted position, the biasing means returning the latch member to the extended position after the battery pack is fully inserted in the battery well in order to secure the battery pack in the battery well of the defibrillator. - View Dependent Claims (20, 21)
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22. A battery pack for use in a portable defibrillator having a battery well, the battery pack comprising:
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(a) a body having a front and a back; (b) at least one friction-reducing ridge formed on the surface of the body, the ridge protruding from the surface of the body, the ridge reducing the sliding friction between the body and the battery well; (c) a cell having a positive terminal and a negative terminal contained within the body; and (d) a pair of conductive contacts located on the back of the body, one of the pair of conductive contacts coupled to the positive terminal of the cell and the other of the pair of conductive contacts coupled to the negative terminal of the cell. - View Dependent Claims (23, 24, 25)
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26. A portable defibrillator with a removable battery pack, the portable defibrillator comprising:
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defibrillator circuitry; a body for housing the defibrillator circuitry; a battery well provided in the body into which the removable battery pack is inserted, the battery well having; guides for guiding the battery pack as it is inserted into the battery well; friction-reducing ridges on which the battery pack slides as it is inserted into the battery well; and at least one surface that makes contact with at least one friction-reducing ridge protruding from the surface of the battery pack, the friction-reducing ridge of the battery pack reducing the friction between the battery pack and the battery well as the battery pack is inserted into the battery well.
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Specification