Monitoring direct and indirect transmission of infections in healthcare facility using real-time locating system
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A real-time positioning and time technology, applied in the field of tracking system and patient monitoring, can solve the problem of no use
Pending Publication Date: 2020-04-03
KONINKLJIJKE PHILIPS NV
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Problems solved by technology
Hospitals today do not use any monitoring systems to ensure strict adherence to recommended protocols other than adherence to distance restrictions based on visual observations
Method used
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Examples
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example 1
[0064] Example 1 (for contact and droplet precautions):
[0065] Nurse N1 enters room R1 and meets patient P1 lying on bed B1.
[0066] N1 takes care of P1.
[0067] P1 has a currently undetected infectious disease condition and M1 involves the pathogen PG1.
[0068] PG1 can only spread via contact, ie, not via droplet or airborne spread.
[0069] PG has a known lifespan outside the human body of 5 days under certain conditions (eg, certain temperatures, humidity, etc.).
[0070] N1 takes P1 to another department in wheelchair W1 for some tests.
[0071] The system monitors all entities located in the same area as P1 , N1 and W1 or within 1 m of P1 , N1 and W1 and stores the location information of all marked entities in the hospital on the server.
[0072] Thirty minutes after N1 and P1 leave R1, nurse N2 enters the room and happens to have momentary physical contact with B1 and leaves R1.
[0073] P1 is not the responsible object of N2.
[0074] After 1 day, P1 develops ...
example 2
[0082] Example 2 (for airborne precautions):
[0083] Patient P1 is lying on bed B1 in room R1.
[0084] P1 has a currently undetected infectious disease condition and M1 involves the pathogen PG1.
[0085] PG1 can spread via airborne transmission.
[0086] The lifespan of PG1 outside the human body is 5 hours.
[0087] After placing P1 in R1 for 1 hour, nurse N2 enters room R2 to get some supplies.
[0088] Room R1 and R2 share ventilation.
[0089] Nurse N2 inhales PG1 in R2.
[0090] N2 developed into M1 after 24 hours.
[0091] Enter parameters into the system. The system generates a directed graph.
[0092] The directed graph shows that there is an edge between P1 and N2 due to the shared ventilation between R1 and R2.
[0093] Move P1 to a ventilated isolated room and isolate N2.
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Abstract
An infectious disease transmission tracking system (10) includes a real-time locating system (RTLS) (12) configured to track locations of tags (14, 15) in a monitored area. At least one electronic processor (22) is in operative communication with the RTLS to receive locations of tags in the monitored area. A non-transitory storage medium stores, a map (30) of the monitored area; a nodes database (32) storing information on nodes (18) in which each node is a person, a mobile object, or a map zone and the nodes database stores information on the nodes including at least (i) an identification ofeach node as a person, a mobile object, or a map zone, (ii) an identification of a tag associated with each node that is identified as a person or a mobile object, (iii) locational information on themap for each node that is identified as a map zone, and (iv) an infection likelihood for each node with respect to a tracked pathogen; and a pathogen database (34) storing infectious transmission information for at least the tracked pathogen including one or more transmission modes for the tracked pathogen and at least one node residency time for the tracked pathogen. The non-transitory storage medium includes instructions readable and executable by the at least one electronic processor to perform an infectious disease transmission tracking method (100) including: computing a pathway (35) on the map of at least one infected node using locations of the tag associated with the infected node received from the RTLS wherein an infected node has a non-zero infection likelihood respective to thetracked pathogen which satisfies an infected criterion; computing an infectious zone (36) on the map along the pathway using the infectious transmission information stored in the pathogen database; for each node contacting the infectious zone, adjusting the infection likelihood of the contacting node in the nodes database based on at least the infectious transmission information for the tracked pathogen and designating the contacting node as an infected node if the updated infection likelihood of the contacting node satisfies the infected criterion.
Description
technical field [0001] The following generally relates to the field of patient monitoring, the field of patient handling facility monitoring, the field of infection suppression, the field of tracking systems, and related fields. Background technique [0002] Infection control is the discipline concerned with combating hospital-acquired infections or healthcare-associated infections (HAIs). HAI is an infection that tends to occur in hospital settings, nursing homes, rehabilitation facilities, clinics, or other clinical settings. This infection is transmitted to patients in clinical settings through a variety of routes. Healthcare workers can spread infection, contaminated equipment, linens or airborne droplets. The infection may have originated from another infected patient or hospital staff, or in some cases, the source of the infection could not be determined. [0003] According to the US Centers for Disease Control and Prevention, there were an estimated 722,000 episode...
Claims
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Application Information
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