CN101274110A

CN101274110A - System for monitoring extracorporeal circulation and perfusion of medical fluid in heart lung bypass process

Info

Publication number: CN101274110A
Application number: CNA2007100936581A
Authority: CN
Inventors: B·麦克劳; B·克拉多; G·达尼尔
Original assignee: LANDE CO Ltd
Current assignee: LANDE CO Ltd
Priority date: 2007-03-30
Filing date: 2007-03-30
Publication date: 2008-10-01

Abstract

The invention relates to an extracorporeal circulation and infusion system (1) applied to medical fluid in the cardiopulmonary bypass. The system of the invention comprises basically-vertical supporting structures (2, 21, 22, 23, 24) which can be correlated with at least a blood induced circulation loop (3) of a patient (4) and at least provided with one integrated pump (6,8) which is used for infusing the medical fluid into at least one infusion loop (5) of the patient (4) and designed to be applied together with a device(20) monitoring and controlling the induced circulation loop (3) and the infusion loop (5).

Description

Medical fluidic extracorporeal circulation and dabbling system in the monitoring cardiorespiratory bypass process

Technical field

The objective of the invention is a kind of medical fluidic extracorporeal circulation of monitoring cardiorespiratory bypass process and dabbling system of being used for.

Background technology

Before the cardiac operation of carrying out with cardiopulmonary bypass or during, there are machine and system to be used for the perfusion of medical fluid at present and are used to monitor associated treatment, this machine and system generally include the supporting structure of basic horizontal form, and this supporting structure is equipped with one section peristaltic pump that is associated with the infusion loop that is applied to patient along the downstream.This machine or system can manage substantially such as the medical fluid that is used for cardioplegia, and this medical fluid can reduce the temperature of heart organ in surgical procedures.

Peristaltic pump applies along one section of the infusion loop, and has and be equipped with the rotor element that periphery is pressed lobe, and according to the cross section of the pipe that limits loop self, this periphery presses lobe manually to be adjusted by the sanitarian with respect to center of rotation.

The use of this machine or system is used for supporting substantially that such as the loop of being supplied with by external pump, it can support to follow patient's extracorporeal circulation of blood of heart organ bypass usually by making of other equipment.

Other equipment such as the pump syringe is generally used for managing specific medical fluid.In this case, dosage and management are controlled by the sanitarian who often manually implements these processes at interval.

Machine that these are present or system present some shortcomings, comprising: the basic horizontal form of its supporting structure must possess the big blood flow volume in the extracorporeal circulation of diffusion; Because size can not be left in the basket such as the indoor of operating room, just need spatial height optimization; And in surgical procedures, may constitute obstruction for moving of sanitarian.

Another shortcoming is that the lobe of peristaltic pump rotor is being disadvantageous with respect to the manual calibration of the position of used type pipe aspect the time loss amount.In addition because manual calibration is inaccurate or even suitable inaccuracy, this requires very qualified occupational staff, in any case and the existence that can not remove range of error.

Summary of the invention

Main purpose of the present invention is to eliminate the shortcoming of above-mentioned state-of-the art by developing a kind of system, and this system guarantees to reduce size, and guarantees to make the mobile obstruction that be subjected to minimum of sanitarian in operating room.

Another object of the present invention is the blood flow volume that reduces in the extracorporeal circulation.

Another object of the present invention is to guarantee to adjust peristaltic pump rotor rapidly according to used pipe type, thereby reduces simultaneously such as the range of error in the operation process.

In the context of this technical goal, another object of the present invention is to realize above-mentioned target with simple structure, and this structure is quite simple and practical, safe in utilization and operating efficiency is high.

This target and these purposes all realize by native system, this system is used for medical fluidic extracorporeal circulation of monitoring cardiorespiratory bypass process and perfusion, wherein, it comprises: vertical substantially supporting structure, among this supporting structure and the patient at least one induces blood flow circulation loop to be associated, and be equipped with at least one integration pump, this integration pump is supplied with at least one the infusion loop that medical fluid is infused into patient; The device of inducing closed circuit and infusion loop that monitoring and control provide.

Description of drawings

In case read the detailed description of the preferable non-exclusionism embodiment that is used for medical fluidic extracorporeal circulation of monitoring cardiorespiratory bypass process and dabbling system, and combine accompanying drawing, other characteristics of the present invention and advantage will become apparent, this embodiment is illustrative and not restrictive, in these accompanying drawings:

Fig. 1 is the axonometric chart according to system of the present invention;

Fig. 2 and 3 is the amplification stereograms according to system of the present invention;

Figure 4 and 5 are the zoomed-in views according to system of the present invention, and it illustrates the state that removes pump rotor;

Fig. 6 is the total figure that illustrates according to the functional fluid screen of system of the present invention.

The specific embodiment

Specifically with reference to these accompanying drawings, label 1 integrally is used for expression and is used for medical fluidic extracorporeal circulation of monitoring cardiorespiratory bypass process and dabbling system.

System 1 comprises vertical substantially supporting structure 2, among this supporting structure 2 and the patient 4 who stands cardiopulmonary bypass at least one induces blood flow circulation loop 3 to be associated, and be equipped with at least one integration pump, this integration pump is supplied with the infusion loop 5 that medical fluid is infused into patient 4.

Particularly, first integration pump 6 is connected to the source inlet that comes of medical fluid 7, this medical fluid specifically is to be used for the type of cardioplegia with the heart cooling that makes patient at surgical procedures, and second integration pump 8 be connected to induce closed circuit 3 inlet to be used for collecting the blood of scheduled volumes from patient 4.

Blood of Shou Jiing and medical fluid mix according to predetermined amount (for example with respect to they volume or weights separately) in this way, and are introduced into the infusion loop 5 of outlet separately that is connected to first integration pump 6 and second integration pump 8, and are fed into patient 4.

Selectively, first integration pump 6 can be connected to the inlet of inducing closed circuit 3 and the source of medical fluid 7, be used to collect scheduled volume blood and medical fluid, their mixed and then introduce infusion loop 5.

In addition, infusion loop 5 can comprise blood chiller 9, is used to measure the first sensor 10 of blood pressure and is used to detect second pick off 11 of bubble in the loop self.

The 3rd make-up pump 12 is arranged at the downstream of the patient 4 on the aspiration circuit 13 and the upstream of gathering-device 14.

The 3rd pressure transducer 15 is set between the 3rd make-up pump 12 and patient, is used to measure the force value of institute's suction blood.

Aspiration circuit 13 is used in surgical procedures cleaning patient's 4 peritoneum zone, and gathering-device 14 can reclaim the blood of collection and closed circuit 3 is induced in its introducing.

The 4th make-up pump 16 is arranged on heart ventilation (ventilation) loop 17, and is associated with patient 4 downstream and the upstream of inducing closed circuit 3.

Advantageously, the 3rd make-up pump 12 and the 4th make-up pump 16 all can be applied to the heart ventilating return 17 of aspiration circuit 13.

Also comprise outside supply pump 18, be used for supplying with and induce closed circuit 3 that this induces closed circuit 3 to come controlled by means of monitoring and control.

First integration pump 6 and second integration pump 8 are peristaltic pumps, and they comprise rotor element 19 respectively, and this rotor element 19 acts at least one section of infusion loop 5 and goes up to be used for pushing medical fluids to patient 4.

Rotor element 19 is associated with the driving body that is rotated by removable coupling arrangement removably, and available other has the different rotors 19 that rotate diameter to be replaced, and this rotation diameter is to induce the cross sectional dimensions of the pipe of closed circuit 3 to determine according to qualification.

Particularly, the pipe that is generally used for cardiac operation has the cross-sectional dimension of 6.4mm, 3.2mm or 9.5mm, therefore in these cross-sectional dimension each, certain rotor 19 with external rotating diameter is installed on basic unit's

pump

6 and 8, the accurate flow that this external rotating diameter will be supplied with respect to different pipes by maker comes calibration in advance and test, and need not to implement the manual adjustment of other lobe position.

Advantageously, first make-up pump 12 and second make-up pump 16 also are peristaltic pumps, and they comprise at least one removable rotor element 19 respectively, and act on respectively at least one section of aspiration circuit 13 and ventilating return 17 at least one section.

Monitoring and control device comprise control unit, not shown in the drawings in order to simplify it, its control is induced closed circuit 3 and infusion loop 5 and is equipped with interface screen 20, and this interface screen 20 is used for coming visual monitoring, manual operation and setting operation or for example by means of measuring cell check volume or weight by the sanitarian.

Particularly, supporting structure 2 comprises: case body 21, supported by the supporting member 22 that is equipped with size adjuster; Screen 20 may be folded on the case body 21 and is in the close position.Adjusting device comprises support, and this support is related integratedly with described case body, and is directed by slip on the vertical support 23 of extending from pedestal 24.

System 1 comprises also and being used for from inducing closed circuit 3 to detect and remove the device of air that this device comprises: at least one detects the device 25 that air exists and signals, and device 25 can be connected to described control unit; And the device that aspirates described air, can activate by described control unit.

Particularly, aspirator comprises discharging loop 26, and this discharging loop 26 is equipped with can be by the valve 27 of control unit control.

Heating and cooling part 28 comprises: a plurality of peltier effects (Peltier) element, be arranged to located adjacent one anotherly, and and can be connected to power supply circuit; Metallic plate is arranged on described a plurality of element and induces between at least one section of closed circuit 3.

Usefully, system 1 comprises and is used to store the patient's who is monitored by described control unit the physiological data and the device of incident that this device comprises the CompactFlash type of storage card, and it can insert the adapter that is arranged in case body 21 outsides.

Advantageously, machine 1 also comprises integrated printer, and it can be controlled by described control unit, and can print patient's physiological data value and event in therapeutic process.

In addition, system 1 comprises pump type syringe, and it can be controlled by described control unit, and can be used for controlledly managed care fluid.

In fact, confirmed that foregoing invention has realized the purpose that proposes, especially be stressed that the existence with supporting structure of vertical in form is guaranteed to reduce system dimension and the mobile minimum that is subjected to of sanitarian in operating room hindered.

In addition, owing to can remove and change peristaltic pump rotor according to used pipe type, the rapid property of having guaranteed these operations to be being used to prepare surgical system, and eliminated the probability that produces error owing to the inaccurate calibration of rotor.

Also can reduce the error probability naturally, in any case and the error probability be identifiable, this is because the device that has all incidents in the storage operation process and patient status and these data are compared with desirable incident and situation.

Induce closed circuit and guiding loop by means of single screen monitoring, and monitoring and the Other Instruments of control such as the pump syringe, make it possible to limit the error that the interference owing to the sanitarian produces, thereby also improve by the sanitarian from the speed of under emergency, taking to move.

Gou Si the present invention can stand multiple modification and modification by this way, and all these are included in the scope of the principle of the invention.In addition, other element of all being equal on the available techniques of all details is replaced.

In fact, used material and corresponding form and size can be changed to any degree as requested, and can not make it to drop out outside the protection domain of following claims.

Claims

1. be used for medical fluidic extracorporeal circulation of monitoring cardiorespiratory bypass process and dabbling system (1), it is characterized in that, comprise: vertical substantially supporting structure (2,21,22,23,24), described supporting structure can induce closed circuit (3) to be associated with intravital at least one blood flow of patient (4), and be equipped with at least one integration pump (6,8), described integration pump is supplied with at least one the infusion loop (5) that medical fluid is infused into described patient (4); The described device (20) of inducing closed circuit (3) and described infusion loop (5) that monitoring and control provide.

2. the system as claimed in claim 1, it is characterized in that, described at least one integration pump (6,8) is a peristaltic pump, comprising: the rotor element of at least one pre-calibration (19), go up to be used for pushing described medical fluid to described patient (4) at least one section that acts on described infusion loop (5); Drive body, rotate by the rotor element (19) of described pre-calibration; And removably connect the rotor element (19) of described pre-calibration and the device of described driving body.

3. system as claimed in claim 1 or 2, it is characterized in that, comprise first integration pump (6), this first integration pump can be associated with the described inlet of closed circuit (3) and at least one source (7) of described medical fluid of inducing, and can be associated with the outlet in described infusion loop (5).

4. system as claimed in claim 1 or 2 is characterized in that, comprising: first integration pump (6) can be associated with the inlet at least one source (7) of described medical fluid; And second integration pump (8), can be associated with the described inlet of closed circuit (3) of inducing, described first and second integration pumps (6,8) can be associated with the outlet in described infusion loop (5), are used to mix described fluid and described blood.

5. the system as claimed in claim 1 is characterized in that, comprises the 3rd make-up pump (12), is arranged at the downstream of the described patient (4) on the blood aspiration circuit (13) and the upstream of gathering-device (14).

6. as claim 1 or 5 described systems, it is characterized in that, comprise the 4th make-up pump (16), be arranged on described patient's (4) the heart ventilating return (17), and be associated with described patient's (4) downstream and described upstream of inducing closed circuit (3).

7. as claim 5 or 6 described systems, it is characterized in that, described the 3rd make-up pump (12) and described the 4th make-up pump (16) are peristaltic pumps, and comprise: the rotor element of at least one pre-calibration (19), act on respectively that at least one section of described aspiration circuit (13) goes up and at least one section of described ventilating return (17) on; Drive body, rotate by the rotor element of described pre-calibration; And removably connect the rotor element (19) of described pre-calibration and the device of described driving body.

8. the system as claimed in claim 1 is characterized in that, described monitoring and control device comprise the control unit that is installed on the described supporting structure (2,21,22,23,24).

9. system as claimed in claim 8 is characterized in that, described control unit can be associated with described at least one external pump (18) of closed circuit (3) of inducing of supply.

10. the system as claimed in claim 1 is characterized in that, comprises from the described device (25) that detects and remove air the closed circuit (3) of inducing.

11. as claim 8 or 10 described systems, it is characterized in that described detection and removal device comprise: at least one detects the device (25) that there is subsequent signal in air, can be connected to described control unit; And the device (26,27) that aspirates described air, can activate by described control unit.

12. the system as claimed in claim 1 is characterized in that, comprises that heating and cooling are included in described device (28) of inducing the blood in the closed circuit (3).

13. system as claimed in claim 12 is characterized in that, described heating and cooling device comprises heating and cooling part (28), and described heating and cooling part is along described at least one section setting of inducing closed circuit (3).

14. system as claimed in claim 13 is characterized in that, described heating and cooling part (28) comprises at least one peltier-element, and it can be connected to power supply circuit.

15. as claim 13 or 14 described systems, it is characterized in that, described heating and cooling part (28) comprises a plurality ofly is arranged to described peltier-element adjacent one another are, and at least one metallic plate is arranged at described a plurality of element and described inducing between described at least one section of closed circuit (3).

16. as claim 1 or 8 described systems, it is characterized in that, comprise that storage is by the patient's of described control unit monitoring the physiological data and the device of incident.

17. in the claim or multinomial described system is characterized in that described storage device comprises storage card as described above.

18., it is characterized in that as claim 1 or 8 described systems, comprise the printer that at least one is integrated, described printer can be by described control unit control.

19., it is characterized in that as claim 1 or 8 described systems, comprise pump type syringe, described pump type syringe can be by described control unit control, to be used for the controllable management of described medical fluid.

20. the system as claimed in claim 1 is characterized in that, described supporting structure comprises case body (21), and described case body is supported by the supporting member that is equipped with size adjuster (22).

21. system as claimed in claim 20 is characterized in that, described size adjuster comprises support, and described support is related integratedly with described case body, and upward is directed by slip in the vertical support (23) of extending from pedestal (24).

22. as the described system of each claim in the claim 1,8 and 20, it is characterized in that, comprise the screen (20) that is connected to described control unit, described screen is what touch to activate, and may be folded on described case body (21) and go up and be in the close position.