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US 12,111,309 B2Granted
Point of care devices and methods for detecting infection status of a wound
AssigneeConvatec Limited
InventorsManjunath L. Penagondla, Daniel G. Metcalf, Philip G. Bowler
Life of this patent
Estimating the term…
Abstract
Wound sampling devices for detecting infection status may be used for point-of-care devices that can be placed at a wound site and detect an infection marker, infection status, or wound healing status by displaying a visible signal such as a color change.
Claims25
A device for detecting an infection in a wound, comprising:
- a) an indicator unit;
- wherein the indicator unit comprises:
- i. a sensor tube having an open proximal end;
- and
- ii. a sensor positioned in the sensor tube;
- and
- b) a swab unit, wherein the swab unit comprises:
- i. a swab shaft having a proximal end and a distal end;
- ii. a swab tip positioned at the distal end of the swab shaft;
- and
- iii. a swab handle connected to the swab shaft at the proximal end of the swab shaft, the swab handle being configured to sealingly engage the open proximal end of the sensor tube, the swab handle comprising (i) a retaining element that defines a cavity and attaches to the sensor tube, (ii) a moveable element retained within the cavity and moveable relative to the retaining element, the moveable element comprising a liquid chamber and a liquid chamber seal that retains liquid within the liquid chamber, and (iii) a piercing member fixedly attached to the retaining element, movement of the moveable element from a proximal position to a distal position causing the piercing member to pierce the liquid chamber seal to release the liquid into the sensor tube.
8 more elements
A device for detecting an infection in a wound, comprising:
- a) an indicator unit;
- wherein the indicator unit comprises:
- i. a sensor tube having an open proximal end;
- and
- ii. a sensor positioned in the sensor tube;
- and
- b) a swab unit, wherein the swab unit comprises:
- i. a swab shaft having a proximal end and a distal end;
- ii. a swab tip positioned at the distal end of the swab shaft;
- and
- iii. a swab handle connected to the swab shaft at the proximal end of the swab shaft, the swab handle being configured to sealingly engage the open proximal end of the sensor tube, the swab handle defining a liquid chamber and the swab handle containing a liquid in the liquid chamber to automatically release the liquid into the sensor tube with the swab tip positioned within the sensor tube and the swab handle sealingly engaged to the open proximal end of the sensor tube, and the swab handle comprising a liquid chamber seal positioned at a distal end of the liquid chamber, the indicator unit further comprising a piercing member fixedly attached to the sensor tube at a location whereby the piercing member contacts the liquid chamber seal only when a distal end of the swab handle is inserted into the sensor tube, and inserting the distal end of the swab handle into the sensor tube causing the piercing member to pierce the liquid chamber seal to release the liquid into the sensor tube.
8 more elements
A device for detecting an infection in a wound, comprising:
- a) an indicator unit;
- wherein the indicator unit comprises:
- i. a sensor tube having an open proximal end;
- and
- ii. a sensor positioned in the sensor tube;
- and
- b) a swab unit, wherein the swab unit comprises:
- i. a swab shaft having a proximal end and a distal end;
- ii. a swab tip positioned at the distal end of the swab shaft;
- and
- iii. a swab handle connected to the swab shaft at the proximal end of the swab shaft, the swab handle being configured to sealingly engage the open proximal end of the sensor tube, wherein the swab handle defines a liquid chamber and wherein the swab handle contains a liquid in the liquid chamber and is structured to automatically release the liquid into the sensor tube after the swab tip is positioned within the sensor tube and the swab handle is sealingly engaged to the open proximal end of the sensor tube, and wherein the swab handle comprises a liquid chamber seal positioned at a distal end of the liquid chamber, wherein the indicator unit further comprises a piercing ring attached to the sensor tube at a location whereby the piercing ring contacts the liquid chamber seal only when a distal end of the swap handle is inserted into the sensor tube, and wherein the piercing ring is positioned within the sensor tube such that insertion of the distal end of the swap handle into the sensor tube causes the piercing ring to pierce the liquid chamber seal to release the liquid into the sensor tube.
8 more elements
Dependencies are inferred from the claim text.