System for the collecting and retransfusion of autologous blood

Claim 1

A system for collecting and retransfusing autologous blood produced in a wound after an operation, especially a closed wound, comprising: a. a collecting vessel to receive blood and anticoagulant fluid, said collecting vessel being connected to an aspiration tube in which negative pressure can be maintained; b. a retransfusion line containing a microfilter through which at least a portion of the blood collected in the collecting vessel is retransfused, said retransfusion line being separate from said aspiration tube; c. means for introducing the anticoagulant fluid into the blood before entering the collecting vessel; d. a bag having a separating zone for combined collecting and separating, said bag for receiving an erythrocyte concentrate, fluidly connected to said collecting vessel by means of a tube line, the outlet of said combined collecting and separating bag being fluidly connected to a retransfusion line having at least one section to which a tube pump can be applied; e. a sensor connected to a connection selected from a group of connections consisting of a connection located on the retransfusion line itself and a connection located on the outlet of the collecting and separating bag itself, said sensor producing a signal which shuts off the tube pump acting on the retransfusion line when the supply of erythrocyte concentrate in the collecting and separating bag is used up and said sensor produces a signal selected from the group of signals consisting of visual signals and acoustical signals; f. whereby, said system is closed so that the collected fluid does not contact air in the room in which the system is used.

Claim 2

A system for collecting and retransfusing autologous blood produced in a wound after an operation, especially a closed wound, comprising: a. a collecting vessel to receive blood and anticoagulant fluid, said collecting vessel being connected to an aspiration tube in which negative pressure can be maintained; b. a retransfusion line containing a microfilter through which at least a portion of the blood collected in the collecting vessel is retransfused, said retransfusion line being separate from said aspiration tube; c. means for introducing the anticoagulant fluid into the blood before entering the collecting vessel; d. a bag having a separating zone for combined collecting and separating, said bag for receiving an erythrocyte concentrate, fluidly connected to said collecting vessel by means of a tube line, the outlet of said combined collecting and separating bag being fluidly connected to a retransfusion line having at least one section to which a tube pump can be applied; e. a sensor connected to a connection selected from a group of connections consisting of a connection located on the retransfusion line itself and a connection located on the outlet of the collecting and separating bag itself, said sensor producing a signal which shuts off the tube pump acting on the retransfusion line when the supply of erythrocyte concentrate in the collecting and separating bag is used up and said sensor produces a signal selected from the group of signals consisting of visual signals and acoustical signals; f. whereby, said system is closed so that the collected fluid does not contact air in the room in which the system is used.

Claim 9

A system for collecting and retransfusing autologous blood comprising: a. a collecting vessel, in which a negative pressure can be maintained to receive blood and anticoagulant fluid, said collecting vessel being connected to an aspiration tube in which negative pressure can be maintained; b. a retransfusion line to which a tube pump can be applied containing a microfilter; c. means for introducing the anticoagulant fluid into the blood before entering the collecting vessel, said introducing means including a dripping bottle containing anticoagulant fluid, said dripping bottle being fluidly connected at an outlet to the aspiration tube through a drip tube, and a quantity dosing device located near the outlet of said dripping bottle for regulating the quantity of anticoagulant, and a sensor for producing a signal representing the quantity of incoming blood for controlling the quantity dosing device; d. a bag having a separating zone and being fluidly connected to said collecting vessel by means of a tube line for combined collecting of blood and separating it into erythrocyte concentrate and plasma components, a part of said bag below said separating zone collecting the erythrocyte concentrate having an outlet to which said retransfusion line is connected; e. a tube pump applied to the tube line connecting said bag with said collecting vessel for maintaining the negative pressure in said collecting vessel; and f. whereby said system is closed so that the collected fluid does not contact air in the room in which the system is used.

Claim 10

A system for collecting and retransfusing autologous blood comprising: a. a collecting vessel, in which a negative pressure can be maintained to receive blood and anticoagulant fluid, said collecting vessel being connected to an aspiration tube in which negative pressure can be maintained; b. a retransfusion line to which a tube pump can be applied containing a microfilter; c. means for introducing the anticoagulant fluid into the blood before entering the collecting vessel, said introducing means including a dripping bottle containing anticoagulant fluid, said dripping bottle being fluidly connected at an outlet to the aspiration tube through a drip tube, and a quantity dosing device located near the outlet of said dripping bottle for regulating the quantity of anticoagulant, and a sensor for producing a signal representing the quantity of incoming blood for controlling the quantity dosing device; d. a bag having a separating zone and being fluidly connected to said collecting vessel by means of a tube line for combined collecting of blood and separating it into erythrocyte concentrate and plasma components, a part of said bag below said separating zone collecting the erythrocyte concentrate having an outlet to which said retransfusion line is connected; e. a tube pump applied to the tube line connecting said bag with said collecting vessel for maintaining the negative pressure in said collecting vessel; and f. whereby said system is closed so that the collected fluid does not contact air in the room in which the system is used.

Claim 22

A system for collecting and retransfusing autologous blood comprising: a. a collecting vessel, in which a negative pressure can be maintained to receive blood and anticoagulant fluid, said collecting vessel being connected to an aspiration tube in which negative pressure can be maintained; b. a retransfusion line to which a tube pump can be applied containing a microfilter; c. means for introducing the anticoagulant fluid into the blood before entering the collecting vessel, said introducing means including a dripping bottle containing anticoagulant fluid, said dripping bottle being fluidly connected at an outlet to the aspiration tube through a drip tube, and a quantity dosing device located near the outlet of said dripping bottle for regulating the quantity of anticoagulant, and a sensor for producing a signal representing the quantity of incoming blood for controlling the quantity dosing device; d. a bag having a separating zone and being fluidly connected to said collecting vessel by means of a tube line for combined collecting of blood and separating it into erythrocyte concentrate and plasma components, a part of said bag below said separating zone collecting the erythrocyte concentrate having an outlet to which said retransfusion line is connected; e. a tube pump applied to the tube line connecting said bag with said collecting vessel for maintaining the negative pressure in said collecting vessel; f. means for clamping located between said collecting vessel and said anticoagulant fluid introducing means; and g. means for clamping located on said retransfusion line near the outlet of said collecting and separating bag; h. whereby, said system is closed so that the collected fluid does not contact air in the room in which the system is used.

Claim 23

A system for collecting and retransfusing autologous blood comprising: a. a collecting vessel, in which a negative pressure can be maintained to receive blood and anticoagulant fluid, said collecting vessel being connected to an aspiration tube in which negative pressure can be maintained; b. a retransfusion line to which a tube pump can be applied containing a microfilter; c. means for introducing the anticoagulant fluid into the blood before entering the collecting vessel, said introducing means including a dripping bottle containing anticoagulant fluid, said dripping bottle being fluidly connected at an outlet to the aspiration tube through a drip tube, and a quantity dosing device located near the outlet of said dripping bottle for regulating the quantity of anticoagulant, and a sensor for producing a signal representing the quantity of incoming blood for controlling the quantity dosing device; d. a bag having a separating zone and being fluidly connected to said collecting vessel by means of a tube line for combined collecting of blood and separating it into erythrocyte concentrate and plasma components, a part of said bag below said separating zone collecting the erythrocyte concentrate having an outlet to which said retransfusion line is connected; e. a tube pump applied to the tube line connecting said bag with said collecting vessel for maintaining the negative pressure in said collecting vessel; f. means for clamping located between said collecting vessel and said anticoagulant fluid introducing means; and g. means for clamping located on said retransfusion line near the outlet of said collecting and separating bag; h. whereby, said system is closed so that the collected fluid does not contact air in the room in which the system is used.

Claim 24

A system for collecting and retransfusing autologous blood produced in a wound after an operation, especially a closed wound, comprising: a. a collecting vessel, in which a negative pressure can be maintained to receive blood and anticoagulant fluid, said collecting vessel being connected to an aspiration tube in which negative pressure can be maintained; b. a retransfusion line to which a tube pump can be applied containing a microfilter, said retransfusion line being separate from said aspiration tube; c. means for introducing the anticoagulant fluid into the blood before entering the collecting vessel; d. a bag having a separating zone and being fluidly connected to said collecting vessel by means of a tube line for combined collecting of blood and separating it into erythrocyte concentrate and plasma components, a part of said bag below said separating zone collecting the erythrocyte concentrate having an outlet to which said retransfusion line is connected, wherein the collecting and separating bag includes a separating zone having an upper portion and a lower portion, in which the upper portion to which the tube line is connected, can be tightly sealed against the lower portion, to which the retransfusion line is connected, and in which the lower portion of the collecting and separating bag forms a funnel which tapers toward the connection for the retransfusion line; e. a tube pump applied to the tube line connecting said bag with said collecting vessel for maintaining the negative pressure in said collecting vessel; and f. whereby, said system is closed so that the collected fluid does not contact air in the room in which the system is used.

Claim 25

A system for collecting and retransfusing autologous blood produced in a wound after an operation, especially a closed wound, comprising: a. a collecting vessel, in which a negative pressure can be maintained to receive blood and anticoagulant fluid, said collecting vessel being connected to an aspiration tube in which negative pressure can be maintained; b. a retransfusion line to which a tube pump can be applied containing a microfilter, said retransfusion line being separate from said aspiration tube; c. means for introducing the anticoagulant fluid into the blood before entering the collecting vessel; d. a bag having a separating zone and being fluidly connected to said collecting vessel by means of a tube line for combined collecting of blood and separating it into erythrocyte concentrate and plasma components, a part of said bag below said separating zone collecting the erythrocyte concentrate having an outlet to which said retransfusion line is connected, wherein the collecting and separating bag includes a separating zone having an upper portion and a lower portion, in which the upper portion to which the tube line is connected, can be tightly sealed against the lower portion, to which the retransfusion line is connected, and in which the lower portion of the collecting and separating bag forms a funnel which tapers toward the connection for the retransfusion line; e. a tube pump applied to the tube line connecting said bag with said collecting vessel for maintaining the negative pressure in said collecting vessel; and f. whereby, said system is closed so that the collected fluid does not contact air in the room in which the system is used.

Claim 26

A system for collecting and retransfusing autologous blood produced in a wound after an operation, especially a closed wound, comprising: a. a collecting vessel, in which a negative pressure can be maintained to receive blood and anticoagulant fluid, said collecting vessel being connected to an aspiration tube in which negative pressure can be maintained; b. a retransfusion line to which a tube pump can be applied containing a microfilter, said retransfusion line being separate from said aspiration tube; c. means for introducing the anticoagulant fluid into the blood before entering the collecting vessel; d. a bag having a separating zone and being fluidly connected to said collecting vessel by means of a tube line for combined collecting of blood and separating it into erythrocyte concentrate and plasma components, a part of said bag below said separating zone collecting the erythrocyte concentrate having an outlet to which said retransfusion line is connected, wherein said bag is made of a weldable plastic and includes a separating zone, in which an upper portion, to which the tube line is connected, can be tightly sealed against a lower portion, to which the retransfusion line is connected by a connection, and wherein the lower portion of the collecting and separating bag forms a funnel which tapers toward the connection for the retransfusion line; e. a tube pump applied to the tube line connecting said bag with said collecting vessel for maintaining the negative pressure in said collecting vessel; and f. whereby, said system is closed so that the collected fluid does not contact air in the room in which the system is used.

Claim 27

A system for collecting and retransfusing autologous blood produced in a wound after an operation, especially a closed wound, comprising: a. a collecting vessel, in which a negative pressure can be maintained to receive blood and anticoagulant fluid, said collecting vessel being connected to an aspiration tube in which negative pressure can be maintained; b. a retransfusion line to which a tube pump can be applied containing a microfilter, said retransfusion line being separate from said aspiration tube; c. means for introducing the anticoagulant fluid into the blood before entering the collecting vessel; d. a bag having a separating zone and being fluidly connected to said collecting vessel by means of a tube line for combined collecting of blood and separating it into erythrocyte concentrate and plasma components, a part of said bag below said separating zone collecting the erythrocyte concentrate having an outlet to which said retransfusion line is connected, wherein said bag is made of a weldable plastic and includes a separating zone, in which an upper portion, to which the tube line is connected, can be tightly sealed against a lower portion, to which the retransfusion line is connected by a connection, and wherein the lower portion of the collecting and separating bag forms a funnel which tapers toward the connection for the retransfusion line; e. a tube pump applied to the tube line connecting said bag with said collecting vessel for maintaining the negative pressure in said collecting vessel; and f. whereby, said system is closed so that the collected fluid does not contact air in the room in which the system is used.

Claim 28

A system for collecting and retransfusing autologous blood produced in a wound after an operation, especially a closed wound, comprising: a. a collecting vessel, in which a negative pressure can be maintained to receive blood and anticoagulant fluid, said collecting vessel being connected to an aspiration tube in which negative pressure can be maintained; b. a retransfusion line to which a tube pump can be applied containing a microfilter, said retransfusion line being separate from said aspiration tube; c. means for introducing the anticoagulant fluid into the blood before entering the collecting vessel, wherein said means for introducing anticoagulant fluid into the blood includes a dripping bottle containing anticoagulant fluid, said dripping bottle being fluidly connected to the aspiration tube through a drip tube; d. a bag having a separating zone and being fluidly connected to said collecting vessel by means of a tube line for combined collecting of blood and separating it into erythrocyte concentrate and plasma components, a part of said bag below said separating zone collecting the erythrocyte concentrate having an outlet to which said retransfusion line is connected, wherein said bag is made of a weldable plastic and includes a separating zone, in which an upper portion, to which the tube line is connected, can be tightly sealed against a lower portion, to which the retransfusion line is connected by a connection, and wherein the lower portion of the collecting and separating bag forms a funnel which tapers toward the connection for the retransfusion line; e. a tube pump applied to the tube line connecting said bag with said collecting vessel for maintaining the negative pressure in said collecting vessel; and f. whereby, said system is closed so that the collected fluid does not contact air in the room in which the system is used.

Claim 29

A system for collecting and retransfusing autologous blood produced in a wound after an operation, especially a closed wound, comprising: a. a collecting vessel, in which a negative pressure can be maintained to receive blood and anticoagulant fluid, said collecting vessel being connected to an aspiration tube in which negative pressure can be maintained; b. a retransfusion line to which a tube pump can be applied containing a microfilter, said retransfusion line being separate from said aspiration tube; c. means for introducing the anticoagulant fluid into the blood before entering the collecting vessel, wherein said means for introducing anticoagulant fluid into the blood includes a dripping bottle containing anticoagulant fluid, said dripping bottle being fluidly connected to the aspiration tube through a drip tube; d. a bag having a separating zone and being fluidly connected to said collecting vessel by means of a tube line for combined collecting of blood and separating it into erythrocyte concentrate and plasma components, a part of said bag below said separating zone collecting the erythrocyte concentrate having an outlet to which said retransfusion line is connected, wherein said bag is made of a weldable plastic and includes a separating zone, in which an upper portion, to which the tube line is connected, can be tightly sealed against a lower portion, to which the retransfusion line is connected by a connection, and wherein the lower portion of the collecting and separating bag forms a funnel which tapers toward the connection for the retransfusion line; e. a tube pump applied to the tube line connecting said bag with said collecting vessel for maintaining the negative pressure in said collecting vessel; and f. whereby, said system is closed so that the collected fluid does not contact air in the room in which the system is used.