Medico-surgical simulator and medico-surgical simulation method

Patent metadata

Field	Value
Publication number	US-10832595-B2
Application number	US-201615769587-A
Country	US
Kind code	B2
Filing date	Oct 26, 2016
Priority date	Nov 2, 2015
Publication date	Nov 10, 2020
Grant date	Nov 10, 2020

Abstract

Disclosed is a medico-surgical simulator and to a corresponding method. The medico-surgical simulator includes a vascularization device and/or a ventilation device, as well as a regulation device. The medico-surgical simulator is arranged so as to be connected to a cadaver and to vascularize an arterial system of the cadaver via the vascularization device and/or to ventilate a respiratory system of the cadaver via the ventilation device. The regulation device controls the vascularization and ventilation devices in such a way as to simulate cardiorespiratory functions for providing surgical training carried out on the cadaver with a very high degree of realism.

First claim

The invention claimed is:

1. Medico-surgical simulator comprising at least the vascularisation device ( 1 ) among:
a vascularisation device ( 1 ) arranged to vascularise a cardiovascular circuit, the vascularisation device ( 1 ) comprising:
means of connection ( 931 , 932 , 933 ) arranged to connect the vascularisation device ( 1 ) to a heart ( 92 ) of a cadaver ( 9 ) in such a way that the heart forms part of the cardiovascular circuit,
a liquid injection system arranged to inject a liquid into the cardiovascular circuit and to set at least one injection parameter of the liquid in the cardiovascular circuit,
a liquid measurement system ( 151 , 152 , 153 , 16 ) arranged to measure at least one parameter representative of a flow of liquid in the cardiovascular circuit,

and
a ventilation device ( 2 ) arranged to ventilate a respiratory circuit, the ventilation device comprising:
means of connection ( 96 ) arranged to connect the ventilation device to the lungs ( 941 , 942 ) of the cadaver in such a way that the lungs form part of the respiratory circuit,
a gas injection system arranged to inject a gas into the respiratory circuit and to set at least one injection parameter of the gas in the respiratory circuit,
a gas measurement system ( 25 ) arranged to measure at least one parameter representative of a flow of gas in the respiratory circuit,

the medico-surgical simulator further comprising a regulation device ( 3 ) arranged to:
read at least one input parameter, the at least one input parameter comprising:
one or more parameters among the at least one parameter measured by the liquid measurement system and/or by the gas measurement system, and/or
one or more parameters among the at least one injection parameter of the liquid and/or the at least one injection parameter of the gas,

set, via the liquid injection system and/or the gas injection system, at least one output parameter according to the at least one input parameter, the at least one output parameter comprising one or more parameters among the at least one injection parameter of the liquid and/or the at least one injection parameter of the gas, the at least one output parameter being different from the at least one input parameter,
the vascularisation device further comprising three conduits (A 1 , A 2 , A 3 ) and wherein the connection means of the vascularisation device comprise three cannulae ( 931 , 932 , 933 ) respectively connected to said three conduits, such cannulae and conduits being arranged to connect the vascularisation device, by the cannulae, to three respective arteries ( 911 , 912 , 913 ) of the cadaver, forming an arterial network in such a way as to allow an injection of the liquid into the arterial network via at least one of these cannulae,

wherein the vascularisation device further comprises:
three circulation mechanisms ( 11 , 12 , 13 ) respectively mounted on each of the three conduits, the circulation mechanism associated with each of these conduits being arranged to selectively take two positions:
an injection position in which the liquid can circulate in the conduit through the circulation mechanism from the liquid injection system to the arterial network and in which the liquid cannot circulate in the conduit through the circulation mechanism from the arterial network to the liquid injection system,
an evacuation position in which the liquid can circulate in the conduit through the circulation mechanism from the arterial network to the liquid injection system and in which the liquid cannot circulate in the conduit through the circulation mechanism from the liquid injection system to the arterial network,

a selector arranged to select at least two liquid injection modes from among:
a pressurised mode in which the three circulation mechanisms are placed in the injection position,
a circulation mode in which one or two of the circulation mechanisms are placed in the injection position and in which the other circulation mechanism(s) are placed in the evacuation position.

2. Medico-surgical simulator according to claim 1 , further comprising the vascularisation device and the ventilation device.

3. Medico-surgical simulator according to claim 1 , wherein the at least one injection parameter of the liquid comprises a pressure and/or flow rate and/or frequency of injection of the liquid in the cardiovascular circuit.

4. Medico-surgical simulator according to claim 3 , wherein the liquid injection system comprises:
one or more injection electrovalves ( 111 , 121 , 131 ) arranged to adjust the flow rate and/or injection frequency of the liquid in the cardiovascular circuit, and/or
a liquid pressure regulator ( 14 ) arranged to adjust the injection pressure of the liquid in the cardiovascular circuit.

5. Medico-surgical simulator according to claim 1 , wherein the at least one parameter representative of a flow of liquid in the cardiovascular circuit comprises a flow rate of the liquid in the cardiovascular circuit.

6. Medico-surgical simulator according to claim 5 , wherein the liquid measurement system comprises one or more flowmeters ( 151 , 152 , 153 ) arranged to measure the flow rate of the liquid in the cardiovascular circuit.

7. Medico-surgical simulator according to claim 1 , wherein the liquid measurement system further comprises an intracardiac pressure sensor ( 16 ) arranged to measure an intracardiac pressure of the liquid in the heart, said intracardiac pressure constituting a parameter representative of the flow of the liquid in the cardiovascular circuit.

8. Medico-surgical simulator according to claim 1 , wherein the at least one injection parameter of the gas comprises a pressure and/or flow rate and/or frequency of injection of the gas in the respiratory circuit.

9. Medico-surgical simulator according to claim 8 , wherein the gas injection system comprises:
a pneumatic distributor ( 21 ) arranged to adjust the flow rate and/or frequency of injection of the gas in the respiratory circuit, and/or
a gas pressure regulator ( 24 ) arranged to adjust the injection pressure of the gas in the respiratory circuit.

10. Medico-surgical simulator according to claim 1 , wherein the at least one parameter representative of a flow of gas in the respiratory circuit comprises a flow rate of the gas in the respiratory circuit.

11. Medico-surgical simulator according to claim 10 , wherein the gas measurement system comprises a pneumatic flowmeter ( 25 ) arranged to measure the flow rate of the gas in the respiratory circuit.

12. Medico-surgical simulator according to claim 1 , wherein the regulation device comprises means to manually input one or more parameters among the at least one injection parameter of the liquid and/or the at least one injection parameter of the gas as an input parameter.

13. Medico-surgical simulator according to claim 1 , wherein the regulation device comprises a computer memory ( 4 ) in which one or several of the following models are stored:
A cardiac-respiratory model in which the regulation device reads as input parameter(s) one or more among the at least one injection parameter of the liquid and sets as output parameter(s), via the gas injection system, one or more among the at least one injection parameter of the gas according to the input parameter(s);
A respiratory-cardiac model in which the regulation device reads as input parameter(s) one or more among the at least one injection parameter of the gas and sets as output parameter(s), via the liquid injection system, one or more among the at least one injection parameter of the liquid according to the input parameter(s);
A cardiac-cardiac model

Assignees

• Centre Nat Rech Scient
• Univ Poitiers
• Centre Hospitalier Univ De Poitiers
• Inserm—Institut National De La Sante Et De La Rech Medicale

Inventors

• Richer Jean-Pierre
• Faure Jean-Pierre
• Oriot Denis
• Breque Cyril
• Delpech Pierre Olivier
• Ghazali Daniel-Aïham

Classifications

• G09B23/288 Primary

  for artificial respiration or heart massage · CPC title

• G09B23/303

  specially adapted to simulate circulation of bodily fluids · CPC title

• G09B23/306 Primary

  comprising real biological tissue · CPC title