DE102022115859A1 - Rescue assistance system and control method for controlling the rescue assistance system - Google Patents

Abstract

The invention relates to a rescue aid system having at least two modules with cooling and / or heating means, which are designed to at least partially cover a body or body sections in accordance with use and these modules are individually and independently of the other module or modules and are thermally variable in terms of temperature can be regulated and/or controlled, - a control unit is provided for thermal activation and control of the thermally activated modules and - temperature sensors are provided in the modules, the measured values of which are used for thermal activation and control of the thermally activated modules via the control unit; the rescue aid system is designed as a closed control loop, whereby - an actual body core temperature can be detected by the control unit by means of a temperature sensor system, - the temperature values in the modules can be detected via the temperature sensors in the individual modules in the control unit and - the control unit adjusts the Temperatures in the modules of the rescue aid system can be carried out by adjusting the actual body core temperature to a target body core temperature, the control circuit being stored in the control unit and / or provided in such a way that it can be adapted so that corresponding heating curves can be carried out. Furthermore, the invention relates a control method for controlling the rescue aid system according to the invention.

Description

• - diese wenigstens teilweise verwendungsgemäß einen Körper oder Körperabschnitte einhüllend bedeckend ausgebildet sind und wobei diese Module einzeln und unabhängig von dem oder den weiteren Modulen in Bezug auf Temperatur thermisch variabel regelbar und/oder ansteuerbar sind,
• - zur thermischen Aktivierung und Ansteuerung der thermisch aktivierbaren Module eine Steuerungseinheit vorgesehen ist und
• - Temperatursensoren in den Modulen vorgesehen sind, deren Messwerte zur thermischen Aktivierung und Ansteuerung der thermisch aktivierbaren Module über die Steuerungseinheit genutzt werden.

The invention relates to a rescue aid system having at least two modules with cooling and/or heating means, wherein

• - these are designed to at least partially cover a body or body sections in accordance with use and these modules can be regulated and/or controlled individually and independently of the further module or modules in terms of temperature,
• - a control unit is provided for thermal activation and control of the thermally activated modules and
• - Temperature sensors are provided in the modules, the measured values of which are used for thermal activation and control of the thermally activated modules via the control unit.

The invention further relates to a control method for controlling the rescue aid system according to the invention.

The rescue aid system can preferably be used by emergency services, in particular to care for preclinical emergency patients.

To date, active heat preservation systems have not been used in ground-based rescue services. Warmth maintenance is currently only carried out passively using rescue blankets and a warmed-up ambulance (RTW, NKTW, ITW or mobile intensive care unit) and, for trauma and seriously injured patients, invasively using pre-warmed infusions. The latter involves heat supply that is difficult to control, especially since infusions can only be administered in limited numbers. This is a clear gap in current emergency medical services practice when dealing with trauma patients as well as other emergency patients and patient transport. In air rescue and on board a rescue ship, these measures are carried out analogously as far as possible.

Different rescue aid systems for emergency services are known from the prior art.

From the publication DE 10 2008 044 388 A1 Multi-phase materials are known whose mechanical properties can be changed by external electrical or magnetic forces or fields. In particular, this invention relates to materials made of at least two phases, each of which is modified with at least one functional nanoparticle and which leads to reversibly changeable mechanical properties due to the different electrical or magnetic reaction of the nanoparticles in conjunction with the special properties of the matrix.

The WO 2008/116847 A2 describes a material for forming structures, consisting of a polymer or a polymer mixture and an initiator, wherein the polymer or the polymer mixture can be converted from a liquid or viscous state to a solid state by the initiator and its use as well as a method for producing structures with this material.

From the publication US 6,912,747 B2 an enveloping patient carrier is known which has a flexible surface which is connected to a flexible underside. The flexible top surface defines a resealable torso opening, a face opening, and a variety of resealable medical care openings.

Further is from the publication US 2013/0041441 A1 a hypothermia management device comprising a containment cavity defined by an outer shell arranged and closable to contain an injured person; an inner layer attached to the outer cover, the inner layer comprising a backsheet disposed generally beneath the injured person when the injured person is placed into the receiving cavity and a topsheet disposed generally over the injured person Person is arranged when the injured person is placed in the receiving cavity; an inner liner attached to the bottom layer of the inner layer and forming an inner cavity; and an absorbent layer attached to the inner liner and generally disposed beneath the injured person when the injured person is placed in the outer shell, and a heating assembly disposed in the inner cavity.

The DE 102 28 015 A1 describes a patient positioning mat and its use. Such a patient positioning mat has a flexible, airtight cover, the interior of which contains a particulate filling material, and a valve through which the interior can be ventilated and ventilated. According to the invention, a flat, flexible heating element is additionally provided so that the patient positioning mat can be adapted to the body contours of a patient. This is quite close to parts of the present invention. However, this is just a mat as a base and therefore does not serve to immobilize the entire body.

The publication US°6,113,626°A includes a heat transfer blanket that wraps the torso and legs, leaving the arms, buttocks, perineum and head exposed, allowing selective heating or cooling of different parts of the body at the same or different rates. The blanket of the present invention also consists of panels that can be selectively opened to access the chest, abdomen, legs or back to expose a surgical field or to provide access to these areas for necessary medical care .

To what extent the use of certain materials, such as in the DE 10 2008 044 388 A1 or WO 2008/116847 A2 described, which are already relevant at this point in time, cannot be assessed at the moment. This will only become apparent in development. The same applies to the functions described, such as the different solutions for thermal blankets or thermally conductive materials.

DIN EN 1789 Type C regulates the equipment with multifunctional tools of a “mobile intensive care unit” for the use of “emergency service vehicles and their equipment - ambulances”, known as rescue or emergency ambulances, including a stretcher, shovel stretcher, vacuum mattress.

The publication WO 2020/239173 A1 discloses a personal rescue aid system for injured persons having at least two modules with cooling and / or heating means, which are designed to at least partially cover the body or body sections of a person in accordance with use and these modules are individually and independently of the other module or modules in relation The temperature can be thermally variably controlled and/or controlled.

The problems with the state of the art are essentially that, due to a lack of options, controlled temperature management of the patient currently only begins in the clinic. Preclinical controlled temperature management can be vital for patients. For example, a deviation in body temperature of just 1° C below normal temperature can be accompanied by a drop in blood clotting of up to 20%. This means poorer long-term survival, particularly in severely or polytraumatized patients.

The present invention is based on the object of the personal rescue aid system disclosed in the publication WO 2020/239173 A1 to improve. The temperature management of the patient should be further improved compared to the state of the art.

The rescue system should primarily serve to improve the long-term survival chances of injured creatures and to increase comfort during emergency and patient transport.

This task is solved with a rescue aid system for living beings according to the main claim and the associated method according to the secondary claim.

• - diese wenigstens teilweise verwendungsgemäß einen Körper oder Körperabschnitte einhüllend bedeckend ausgebildet sind und wobei diese Module einzeln und unabhängig von dem oder den weiteren Modulen in Bezug auf Temperatur thermisch variabel regelbar und/oder ansteuerbar sind,
• - zur thermischen Aktivierung und Ansteuerung der thermisch aktivierbaren Module eine Steuerungseinheit vorgesehen ist und
• - Temperatursensoren in den Modulen vorgesehen sind, deren Messwerte zur thermischen Aktivierung und Ansteuerung der thermisch aktivierbaren Module über die Steuerungseinheit genutzt werden;

ist dadurch gekennzeichnet, dass
das Rettungshilfssystem als geschlossener Regelkreis ausgebildet ist, wobei

• - mittels einer Temperatursensorik eine Körperkern-Ist-Temperatur von der Steuerungseinheit erfassbar ist,
• - die Temperatur-Werte in den Modulen über die Temperatursensoren in den einzelnen Modulen in der Steuerungseinheit erfassbar sind

und

• - die Steuerungseinheit eine Anpassung der Temperaturen in den Modulen des Rettungshilfssystems durch eine Angleichung der Körperkern-Ist-Temperatur an eine Körperkern-Soll-Temperatur durchführen kann, wobei der Regelkreis derart in der Steuerungseinheit hinterlegt und/oder anpassbar vorgesehen ist, dass entsprechende Erwärmungskurven ausführbar sind.

The rescue aid system comprising at least two modules with cooling and/or heating means, wherein

• - these are designed to at least partially cover a body or body sections in accordance with use and these modules can be regulated and/or controlled individually and independently of the further module or modules in terms of temperature,
• - a control unit is provided for thermal activation and control of the thermally activated modules and
• - Temperature sensors are provided in the modules, the measured values of which are used for thermal activation and control of the thermally activated modules via the control unit;

is characterized by that
the rescue aid system is designed as a closed control loop, whereby

• - an actual body core temperature can be detected by the control unit using a temperature sensor system,
• - The temperature values in the modules can be recorded via the temperature sensors in the individual modules in the control unit

and

• - the control unit can carry out an adjustment of the temperatures in the modules of the rescue aid system by adjusting the actual body core temperature to a target body core temperature, the control circuit being stored in the control unit and/or provided in an adaptable manner in such a way that corresponding heating curves can be carried out are.

The control unit can have at least one interface for integrating different control systems, such as IOS or Linux based, so that control via different terminal devices is possible.

In addition, the temperature sensor system for measuring the actual body core temperature can be designed in particular as a thermal resistor applied to probes or catheters or as an implanted or implantable structure.

Furthermore, the control unit can have at least one interface for integrating various control systems.

In particular, in one embodiment variant, the temperature sensor system for measuring the actual body core temperature can be designed as a thermal resistor applied to probes or catheters or as an implanted or implantable structure with a temperature sensor.

Furthermore, the temperature sensor system for measuring the actual body core temperature can be selected from one of the following temperature sensor applications: esophageal, esophageal in combination with a gastric tube, tympanic, rectal, vesical, using implanted structures and/or using a pulmonary artery catheter.

1. a. Messung einer Körperkern-Ist-Temperatur mittels einer Temperatursensorik;
2. b. Ermittlung der Temperatur-Werte in den Modulen über Temperatursensoren in den einzelnen Modulen;
3. c. Übermittlung von allen aufgenommen Temperatur-Daten an eine Steuerungseinheit;
4. d. Auswertung der Temperatur-Daten über Durchführung eines Körperkerntemperatur-Soll/Ist-Wert-Abgleichs durch die Steuerungseinheit, wobei in der Steuerungseinheit Körperkern-Soll-Temperaturen und programmierte Temperatur-Zeit-Kurven zur Erlangung ebendieser hinterlegt sind;
5. e. Anpassung der Temperaturen in den Modulen des Rettungshilfssystems durch die Steuerungseinheit zur Angleichung der Körperkern-Ist-Temperatur an die Körperkern-Soll-Temperatur;
6. f. Wiederholung der Schritte a. bis e. bis die Körperkern-Ist-Temperatur mit den in der Steuerungseinheit hinterlegten Körperkern-Soll-Temperatur-Werten übereinstimmt.

The control method for controlling the rescue aid system according to the invention, corresponding to the embodiment variant described above, has at least the following steps:

1. a. Measuring an actual body core temperature using a temperature sensor system;
2. b. Determination of the temperature values in the modules via temperature sensors in the individual modules;
3. c. Transmission of all recorded temperature data to a control unit;
4. d. Evaluation of the temperature data by carrying out a body core temperature target/actual value comparison by the control unit, with body core target temperatures and programmed temperature-time curves for obtaining these being stored in the control unit;
5. e. Adjustment of the temperatures in the modules of the rescue aid system by the control unit to adjust the actual body core temperature to the target body core temperature;
6. f. Repeat steps a. to e. until the actual body core temperature matches the body core target temperature values stored in the control unit.

In one variant, the programmed temperature-time curves stored in the control unit can be adjusted at any time.

A manual adjustment of the programmed temperature-time curves stored in the control unit should be possible at any time, especially for medical staff, within the scope of freedom of therapy.

Due to the modularity and flexibility in design, the rescue aid system for living beings is not restricted and can be used for a variety of living beings in different rescue situations, for emergency patients and/or patient transport.

• - ösophageal,
• - ösophageal in Kombination mit einer Magensonde,
• - tympanisch,
• - rektal,
• - vesikal,
• - mittels implantierter Strukturen

oder

• - mittels Pulmonaliskatheter

durchgeführt werden.Furthermore, the measurement of the actual body core temperature can be preferred

• - esophageal,
• - esophageal in combination with a gastric tube,
• - tympanic,
• - rectal,
• - vesical,
• - using implanted structures

or

• - using a pulmonary artery catheter

be performed.

The temperature sensor system for determining the actual body core temperature can be designed differently. For example, esophageal measurement or tympanic temperature measurement on living beings are possible. In addition, the measurement can also be carried out esophageally in combination with a gastric tube, rectally, vesically, using implanted structures or using a pulmonary catheter.

A tympanic measurement of the actual body core temperature can be carried out in particular using infrared scanning.

The other measurement methods mentioned above are preferably carried out using thermal resistors.

The selection of temperature sensors depends on various factors, in particular the condition of the living being.

Through a continuous comparison of an actual body core temperature with a target body core temperature and the resulting continuous adjustment of the temperatures in the modules of the rescue aid system, the warming or cooling process of a patient is carried out in the best possible way and is fully controlled. The constant target/actual value comparison leads to an optimal temperature curve specified by the programmed temperature-time curves stored in the control unit, which differ depending on the indication. There is a closed control loop. As already shown, manual adjustment of the stored programmed temperature-time curves may be possible.

Depending on the design of the modules of the rescue aid system, it can be used for various living beings, the area of application in particular including injured people and can preferably be used by emergency services, in particular to care for preclinical emergency patients.

The controlled heat or cold supply, which is optimally tailored to the patient and can also be individually adjusted in the individual modules, guarantees the patient the best possible care until the core body temperature reaches the target level.

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102008044388 A1 [0006, 0012]
• WO 2008116847 A2 [0007, 0012]
• US 6912747 B2 [0008]
• US 20130041441 A1 [0009]
• DE 10228015 A1 [0010]
• US 6113626 A [0011]
• WO 2020239173 A1 [0014, 0016]

Claims (8)

Rescue aid system comprising at least two modules with cooling and/or heating means, whereby - these are designed to at least partially cover a body or body sections in accordance with use and whereby these modules can be individually and independently of the other module(s) and/or the other modules in terms of temperature and/or can be controlled, - a control unit is provided for thermal activation and control of the thermally activated modules and - temperature sensors are provided in the modules, the measured values of which are used for thermal activation and control of the thermally activated modules via the control unit; characterized in that the rescue aid system is designed as a closed control loop, whereby - an actual body core temperature can be detected by the control unit by means of a temperature sensor system, - the temperature values in the modules can be detected via the temperature sensors in the individual modules in the control unit and - the control unit can carry out an adjustment of the temperatures in the modules of the rescue aid system by adjusting the actual body core temperature to a target body core temperature, the control circuit being stored in the control unit and/or provided in an adaptable manner in such a way that corresponding heating curves can be carried out are. rescue aid system Claim 1 , characterized in that the control unit has at least one interface for integrating various control systems. rescue aid system Claim 1 or 2 , characterized in that the temperature sensor system for measuring the actual body core temperature is designed as a thermal resistor applied to probes or catheters or as an implanted or implantable structure with a temperature sensor. rescue aid system Claim 1 , 2 or 3 , characterized in that the temperature sensor system for measuring the actual body core temperature is selected from one of the following temperature sensor applications: esophageal, esophageal in combination with a gastric tube, tympanic, rectal, vesical, using implanted structures and / or using a pulmonary artery catheter. Control method for controlling the rescue aid system according to one of the preceding claims, comprising at least the following steps: a. Measuring an actual body core temperature using a temperature sensor system; b. Determination of the temperature values in the modules via temperature sensors in the individual modules; c. Transmission of all recorded temperature data to a control unit; d. Evaluation of the temperature data by carrying out a body core temperature target/actual value comparison by the control unit, with body core target temperatures and programmed temperature-time curves for obtaining these being stored in the control unit; e. Adjustment of the temperatures in the modules of the rescue aid system by the control unit to adjust the actual body core temperature to the target body core temperature; f. Repeat steps a. to e. until the actual body core temperature matches the body core target temperature values stored in the control unit. Control method according to the preceding claim, characterized in that an adaptation of the programmed temperature-time curves stored in the control unit can be carried out at any time. Control method according to one of the two preceding claims, characterized in that the measurement of the actual body core temperature is carried out - esophageally, - esophageally in combination with a gastric tube, - tympanically, - rectally, - vesically, - by means of implanted structures or - by means of a pulmonary artery catheter . Control method according to the preceding claim, characterized in that a tympanic measurement of the actual body core temperature is carried out using infrared scanning.