Medical device for distributing at least one fluid

• US 7,762,983 B2
• Filed: 06/16/2004
• Issued: 07/27/2010
• Est. Priority Date: 06/17/2003
• Status: Expired due to Fees

• Current Assignee: SEDAT Co.
• Original Assignee: SEDAT Co.
• Inventors: Arnissolle, Yves
• Primary Examiner(s): Lucchesi; Nicholas D
• Assistant Examiner(s): Campbell; Victoria P
• Application Number:
  US10/868,340
• Publication Number:
  US 20050015012A1
• Time in Patent Office: 2,232 Days
• Field of Search: 604/67, 604/89, 604/96.01, 604/97.02, 604/97.03, 604/173, 604/470, 604 9901- 9904
• US Class Current: 604/99.02
• CPC Class Codes: A61M 2005/1403 Flushing or purging
• CPC Class Codes: A61M 2205/3331 Pressure; Flow
• CPC Class Codes: A61M 25/10182 Injector syringes
• CPC Class Codes: A61M 25/10185 Valves
• CPC Class Codes: A61M 31/005 for contrast media
• CPC Class Codes: A61M 5/007 for contrast media
• CPC Class Codes: A61M 5/1408 in parallel, e.g. manifolds, sequencing valves access sites A61M39/02; tube connectors A61M39/10
• CPC Class Codes: A61M 5/14546 Front-loading type injectors
• CPC Class Codes: A61M 5/16827 controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths infusion of multiple fluids without using a controller A61M5/1407
• CPC Class Codes: A61M 5/16881 Regulating valves on-off valves, e.g. clamps A61M39/28

Abstract

The medical device for distributing fluid comprises:

• • a syringe (12) for distributing a contrast product;
  • an actuator (28) which is suitable for acting on the syringe in order to ensure that the contrast product flows at a pressure greater than 30 bar;
  • an injection outlet (14) for injecting the contrast product towards the body of a patient, and being connected to the syringe (12);
  • it further comprises:
  • an inflation outlet (16) for a balloon;
  • a distributor (32) which is connected at the outlet of the syringe (12) and which is suitable for selectively connecting the same syringe (12) to the injection outlet (14) or to the inflation outlet (16); and
  • means (20; 22) for controlling the distributor (32) between a first state which connects the syringe to the injection outlet (14) and a second state which connects the syringe (12) to the inflation outlet (16).

Claims

1. Medical device for distributing fluid, comprising:

a syringe for distributing a contrast product;

an actuator which is suitable for acting on the syringe in order to ensure that the contrast product flows at a pressure greater than 30 bar;

an injection outlet for injecting the contrast product towards the body of a patient, wherein the outlet is connected to the syringe;

characterised in that it further comprises;

an inflation outlet for a balloon;

a distributor which is connected at an outlet of the syringe and which is suitable for selectively connecting the same syringe to the injection outlet or to the inflation outlet;

means for controlling the distributor between a first state, which connects the syringe to the injection outlet but not to the inflation outlet, and a second state which connects the syringe to the inflation outlet, and

a storage reservoir for the contrast product, which reservoir is connected to the distributor, wherein the distributor has a third state which connects the reservoir to the syringe.

2. Device according to claim 1, wherein it further comprises a storage reservoir for an auxiliary fluid and means for circulating the auxiliary fluid.

3. Device according to claim 2, wherein it comprises a switching valve which is interposed between the distributor and the injection outlet, wherein the switching valve is connected to the means for circulating the auxiliary fluid, and wherein the switching valve can be switched between a first state in which the means for circulating the auxiliary fluid are connected to the injection outlet and a second state in which the means for circulating the auxiliary fluid are connected to the distributor.

4. Device according to claim 3, wherein the switching valve comprises a moveable sliding valve which is held in a rest position, which defines the first state of the switching valve, under the action of a spring when there is no pressurised contrast product coming from the distributor, and wherein the sliding valve is moveable, under the action of the pressurised contrast product coming from the distributor, towards a position of passage which defines the second state of the switching valve.

5. Device according to claim 3, wherein it comprises a pressure sensor which is connected to the injection outlet via the switching valve.

6. Device according to claim 5, wherein the pressure sensor is connected to the switching valve in such a manner that the pressure sensor is connected to the injection outlet when the switching valve is in the first state thereof.

7. Medical device for distributing fluid, comprising:

a syringe for distributing a contrast product;

an actuator which is suitable for acting on the syringe in order to ensure that the contrast product flows at a pressure greater than 30 bar;

an injection outlet for injecting the contrast product towards the body of a patient, wherein the outlet is connected to the syringe;

characterised in that it further comprises;

an inflation outlet for a balloon;

a distributor which is connected at an outlet of the syringe and which is suitable for selectively connecting the same syringe to the injection outlet or to the inflation outlet;

means for controlling the distributor between a first state, which connects the syringe to the injection outlet but not to the inflation outlet, and a second state which connects the syringe to the inflation outlet;

a storage reservoir for an auxiliary fluid and means for circulating the auxiliary fluid; and

a switching valve which is interposed between the distributor and the injection outlet, wherein the switching valve is connected to the means for circulating the auxiliary fluid, and wherein the switching valve can be switched between a first state in which the means for circulating the auxiliary fluid are connected to the injection outlet and a second state in which the means for circulating the auxiliary fluid are connected to the distributor.

8. Device according to claim 7, wherein the switching valve comprises a moveable sliding valve which is held in a rest position, which defines the first state of the switching valve, under the action of a spring when there is no pressurised contrast product coming from the distributor, and wherein the sliding valve is moveable, under the action of the pressurised contrast product coming from the distributor, towards a position of passage which defines the second state of the switching valve.

9. Device according to claim 8, wherein it comprises a pressure sensor which is connected to the injection outlet via the switching valve.

10. Device according to claim 7, wherein it comprises a pressure sensor which is connected to the injection outlet via the switching valve.

11. Device according to claim 10, wherein the pressure sensor is connected to the switching valve in such a manner that the pressure sensor is connected to the injection outlet when the switching valve is in the first state thereof.

12. Medical device for distributing fluid, comprising:

a syringe for distributing a contrast product;

an actuator which is suitable for acting on the syringe in order to ensure that the contrast product flows at a pressure greater than 30 bar;

an injection outlet for injecting the contrast product towards the body of a patient, wherein the outlet is connected to the syringe;

characterised in that it further comprises;

an inflation outlet for a balloon;

a distributor which is connected at an outlet of the syringe and which is suitable for selectively connecting the same syringe to the injection outlet or to the inflation outlet;

means for controlling the distributor between a first state, which connects the syringe to the injection outlet but not to the inflation outlet, and a second state which connects the syringe to the inflation outlet;

a storage reservoir for an auxiliary fluid and means for circulating the auxiliary fluid; and

a mixer which is interposed between the distributor and the inflation outlet, and wherein the mixer is further connected to the means for circulating the auxiliary fluid in order to ensure that the contrast product and the auxiliary fluid are mixed.

13. Device according to claim 12 wherein the pressure sensor is connected to the switching valve in such a manner that the pressure sensor is connected to the injection outlet when the switching valve is in the first state thereof and the device further comprises a selector which is connected at the outlet of the means for circulating the auxiliary fluid and at the inlet of the mixer and the switching valve, and wherein the selector can be switched between a first state in which the means for circulating the auxiliary fluid are connected to the switching valve and a second state in which the means for circulating the auxiliary fluid are connected to the mixer.

14. Medical device for distributing fluid, comprising:

a syringe for distributing a contrast product;

an actuator which is suitable for acting on the syringe in order to ensure that the contrast product flows at a pressure greater than 30 bar;

an injection outlet for injecting the contrast product towards the body of a patient, wherein the outlet is connected to the syringe,

characterised in that it further comprises;

an inflation outlet for a balloon;

a distributor which is connected at an outlet of the syringe and which is suitable for selectively connecting the same syringe to the injection outlet or to the inflation outlet;

means for controlling the distributor between a first state, which connects the syringe to the injection outlet but not to the inflation outlet, and a second state which connects the syringe to the inflation outlet, and

means for following up and adjusting the pressure of the contrast product at the outlet of the syringe.