Abstract
A connecting piece having a transfer apparatus for data transfer and/or for transferring electrical energy with the counter connecting piece. A connecting piece of this type is preferably used in an intelligent medical fluid conduction and transfer system, in which various components are interconnected by means of the connecting pieces not only fluidically but also for the purpose of transferring energy and/or data with each other, such that, for example, information regarding the medication can be exchanged or validated.
Claims
1-53. (canceled)
54. A connecting piece for fluidic coupling of medical appliances and/or medical lines, comprising: a connector of the ISO 80369 family of standards, a plug for an infusion bottle according to ISO 8536-2 comprising a crimp cap for an infusion bottle according to ISO 8536-3 or comprising a piercing spike according to ISO 8536-4 for connection to an infusion bottle or a bag, a subcutaneous implanted port according to ISO 10555-6, a non-coring cannula for coupling to an implanted port according to ISO 10555-6, a conical connector for anesthetic and respiratory equipment according to ISO 5356-1, a connector according to ISO 5367, a connecting piece for surgical wound drainage systems according to ISO 20697, a connecting piece of an extracorporeal circuit of a hemodialysis system, hemodiafiltration system or hemofilter system as a blood port according to ISO 8637-1, a connecting piece for connection to blood ports for dialysis systems according to ISO 8637-2, or a connecting piece for internal connection of a dialysis system as a port for dialysis liquid according to ISO 8637-1, wherein the connecting piece: is designed for coupling to a correspondingly designed counter-connecting piece; has a fluid channel surrounded by a conduction section for circumferentially tight coupling in a plug-in direction to the counter-connecting piece and for subsequent exchange of liquids and/or gases with the counter-connecting piece; and has a transmission device for data transmission and/or for transmission of electrical energy with the counter-connecting piece; wherein the transmission device has at least one planar or helical coil surrounding the fluid channel.
55. The connecting piece as claimed in claim 54, wherein: the at least one planar or helical coil comprises at least one planar coil, and the at least one planar coil is spiral shaped; or the at least one planar or helical coil comprises at least one helical coil, and the at least one helical coil is cylindrical or conical.
56. The connecting piece as claimed in claim 54, wherein: the at least one planar or helical coil comprises at least one planar coil, the connecting piece has a circumferential collar, and the at least one planar coil is provided on or in the circumferential collar.
57. The connecting piece as claimed in claim 54, wherein: the at least one planar or helical coil comprises at least one helical coil, the connecting piece has a sleeve-shaped ring section, on the inner side of which, on the outer side of which or within which the at least one helical coil is provided.
58. The connecting piece as claimed in claim 54, wherein the connecting piece: is made from plastic at least in part, and/or has at least one metallic or polymeric conductor for conducting electrical energy or for conducting data.
59. The connecting piece as claimed in claim 54, further including: at least one output device.
60. The connecting piece as claimed in claim 54, further including: an integrated circuit which is supplied with power by the transmission device for transmission of electrical energy and/or which is connected to the transmission device for data transmission.
61. The connecting piece as claimed in claim 54, further including: a sensor for capturing a property of a fluid flowing through or for capturing a volumetric flow rate of the fluid flowing through, or for capturing a coupling state of the connecting piece on the counter-connecting piece.
62. A set of at least two connecting pieces, wherein: each of the two connecting pieces comprises the connecting piece as claimed in claim 54 and are for mechanical coupling to one another; the two connecting pieces being designed in such a way that, through mechanical coupling, respective fluid channels thereof are brought into communicating and circumferentially-tight connection with one another; and the two connecting pieces being designed in such a way that, through mechanical coupling, respective transmission devices thereof are brought into a position relative to one another that allows data transmission or transmission of electrical energy.
63. A medical fluid line for transferring liquids and/or gases, comprising: a conduction body comprising a rigid pipe body or a flexible tube body that surrounds a fluid channel; and the connecting piece as claimed in claim 54 at a proximal end of the conduction body.
64. The medical fluid line as claimed in claim 63, further including: a second connecting piece at a distal end of the fluid line; and/or an electrically conductive conductor for conducting digital data and/or for conducting electrical energy along the conduction body; and/or a wall of the conduction body within which the conductor is arranged.
65. A fluid-guiding medical appliance, wherein: the appliance is designed for receiving, conducting and/or delivering fluids; the appliance is designed for receiving, conducting and/or delivering data and/or electrical energy; and the appliance has the connecting piece as claimed in claim 54 for combined receiving, conduction and/or delivery of data and/or electrical energy and of a fluid.
66. The fluid-guiding medical appliance as claimed in claim 65, further including: at least one actuator for controlling the fluid and/or applying pressure thereto; and/or at least one sensor for capturing a property of the fluid or for capturing a volumetric flow rate of the fluid; and/or at least one integrated circuit which is supplied with power by the transmission device for transmission of electrical energy and/or is connected to the transmission device for data transmission.
67. The fluid-guiding medical appliance as claimed in claim 66, wherein: the appliance is designed as a conveying unit.
68. The fluid-guiding medical appliance as claimed in claim 66, wherein: the appliance is designed as a central venous catheter or as a peripheral venous catheter.
69. The fluid-guiding medical appliance as claimed in claim 66, wherein: the appliance is designed as a valve bank or a multi-way valve.
70. The fluid-guiding medical appliance as claimed in claim 66, wherein: the appliance is designed as a hemodialysis cartridge, a hemodiafilter cartridge, a hemofilter or a hemoconcentrator cartridge.
71. The fluid-guiding medical appliance as claimed in claim 66, wherein: the appliance is designed as an auxiliary port device and has a fluid line provided with a connecting piece on both sides, between which there is provided an auxiliary port for ad hoc addition of a fluid.
72. The fluid-guiding medical appliance as claimed in claim 66, wherein: the appliance is designed as a filter appliance.
73. The fluid-guiding medical appliance as claimed in claim 66, wherein: the appliance is designed as a ventilation tube.
74. A medical fluid conduction and transfer system comprising: an access unit for a patient for administrating a fluid or a fluid mixture into the patient and/or for withdrawing a fluid from the patient; and at least one liquid container for providing or accommodating the fluid; wherein the access unit and/or the liquid container has the connecting piece as claimed in claim 54.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0128] Further advantages and aspects of the invention are revealed by the claims and by the following description of preferred exemplary embodiments of the invention, which are elucidated below with reference to the figures.
[0129] FIG. 1 shows a schematic depiction of a network topology of a fluid conduction and transfer system according to the invention using the example of an infusion system.
[0130] FIG. 2 shows, in the form of a schematic depiction, a network topology of the fluid conduction and transfer system according to the invention using the example of a dialysis system.
[0131] FIG. 3 shows, in the form of a schematic depiction, a network topology of the fluid conduction and transfer system according to the invention using the example of a wound drainage system.
[0132] FIG. 4 shows, in the form of a schematic depiction, a network topology of the fluid conduction and transfer system according to the invention using the example of a ventilation system.
[0133] FIG. 5 shows two connecting pieces in the form of a Luer lock having a planar inductive transmission device.
[0134] FIGS. 6A to 6C show connecting pieces in the form of Luer couplings having different planar transmission devices.
[0135] FIGS. 7A to 7C show connecting pieces in the form of Luer couplings having sleeve-shaped transmission devices in the region of a conduction section.
[0136] FIGS. 8A to 8C show connecting pieces in the form of Luer couplings having sleeve-shaped transmission devices in the region of a coupling device for mechanical coupling.
[0137] FIG. 9A shows the connection between, firstly, a crimp cap of an infusion bag or a bottle and, secondly, an infusion tube having expanded electronics by means of inductive coupling.
[0138] FIG. 9B shows the connection between, firstly, a closure plug of an infusion bag or a bottle and, secondly, an infusion tube having expanded electronics by means of inductive coupling.
[0139] FIG. 10 shows the connection between an implanted port and a port needle having expanded electronics.
[0140] FIG. 11 shows a connecting piece formed by one end of a tube, in particular as part of a drainage system.
[0141] FIG. 12 shows connecting pieces of a ventilation system.
[0142] FIG. 13 shows connectors of a ventilation system.
[0143] FIG. 14 shows connecting pieces on blood ports of a dialysis cartridge.
[0144] FIG. 15 shows connecting pieces on dialysate ports of a dialysis cartridge.
[0145] FIGS. 16A and 16B show different types of design of a conduction body having a conductor routed in parallel.
[0146] FIG. 17 shows an infusion pump as a master with coupling-in of energy and coupling-in and coupling-out of information.
[0147] FIG. 18 shows a central venous catheter.
[0148] FIG. 19 shows a peripheral catheter.
[0149] FIG. 20 shows a three-way valve.
[0150] FIG. 21 shows a valve bank.
[0151] FIG. 22 shows a dialysis cartridge.
[0152] FIG. 23 shows an auxiliary port device.
[0153] FIG. 24 shows a filter unit.
[0154] FIG. 25 shows a tube unit for a peristaltic pump.
DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS
[0155] FIG. 1 shows the schematic depiction of a network topology of the fluid conduction and transfer system 10 according to the invention in the form of an infusion system. In contrast to known infusion system topologies, the fluid lines 400 between the components 700, 500, 580, 560, 520 of the system 10 and the fluid-guiding components 700, 500, 580, 560, 520 themselves have metallic or polymeric conductor paths 250 that make it possible to forward and exchange data/information and/or energy. The components of the infusion system 10 are each provided with electronics, so that the individual components—such as the transfer elements 560, 580 (e.g., three-way valves 560 or a valve bank 580) or fluid sources 700 (such as infusion bags) or conveying units 500 (such as infusion pumps)—are capable of identifying themselves and of determining and reporting their status.
[0156] By way of example, the intelligent infusion system 10 allows the functionality of detecting faulty connections in the infusion system. By means of computer code integrated according to the invention, the overall system can determine its topology and hence establish a deviation of the prescribed drugs and the medically prescribed therapy scheme from the actual topology of the infusion system. The connection of a drug from a fluid source 700 to the correct patient 20 is included in this check. Since the components of the infusion system on the patient's side—including central venous catheter 520—have been implanted in the patient 20, they allow a unique identification of the patient 20 and hence allow checking of whether a drug or an infusion solution from a fluid source 700—i.e., an infusion bag or an infusion bottle—will be administered to the correct patient 20.
[0157] By way of example, the intelligent infusion system 10 allows the functionality of detecting incompatibilities between drugs or between drugs and infusion solutions at the point in the infusion system 10 where the fluid flows meet. To this end, the computer program accesses compatibility databases and compares the infusion topology found with said databases.
[0158] FIG. 2 shows the fluid conduction and transfer system according to the invention in the form of a dialysis system 12. An equitopological information infrastructure is integrated in all the components of the blood inflow—i.e., from the venous line 550 into the dialysis system 12 comprising the blood pump 500, the blood line 400 to the blood pump 500 and dialysis cartridge 600, the respective connectors (not depicted) and the dialysis cartridge 600 and also the return flow composed of blood line 400 to the patient, the air trap 690 and the venous line 552—to the patient. An information infrastructure is also integrated in all the components of the dialysis system 12, such as the dialysis solution 680 with the supplying dialysis line 400 to the dialysis cartridge 600, and the dialysate container 670 with the dialysate line 400. The connections between the components are, for example, realized as in FIG. 2. As a result, the integrity of said connections to the patient and within the dialysis machine can be verified and misconnections can be detected. The blood pump 500, for example, can serve as a master 800 and as an energy feed and information interface.
[0159] FIG. 3 shows the fluid conduction and transfer system according to the invention in the form of a wound drainage system 14. It has a fluid line 400 which is guided into the body of the patient 20. Said fluid line, which is depicted at the top of the figure, is connected to a second fluid line 400, which is connected to a unit composed of secretion container 672 and suction pump 500. The suction pump 500 generates a negative pressure in the secretion container 672 and, as a result, liquid is sucked out of the body of the patient through the fluid lines 400.
[0160] The two fluid lines 400 are designed as fluid lines according to the invention and therefore have connecting pieces 105 and 106, which connect not only the fluid channel thereof, but also the conductors 250 provided on both fluid lines 400. On the patient's side, the conductor 250 leads to the distal end of the fluid line 400 ending in the body of the patient 20. A sensor 180 is provided here, which can acquire body data of the patient 20. An integrated circuit 170 of the suction pump 500 is connected to the sensor 180 via the conductors 250 and via the connecting pieces 100 and can thus retrieve the body data and optionally store said data in a patient file via a network connection that is not depicted.
[0161] FIG. 4 shows the fluid conduction and transfer system according to the invention in the form of a ventilation system 16. Owing to the conductors 250 in the ventilation tubes—such as the inhalation limb 400 and the exhalation limb 400—there is an additional possibility of checking for correct connections, i.e., the correct topology when fitting humidifiers 650, filters 640 and liquid traps 660. The connections of the information infrastructure can, for example, be realized inductively according to FIGS. 12 and 13 with adaptation to the geometry of the connection standards in the ventilation system. Sensor data from the ventilation machine 710 or the tube 610 can be transmitted via the information infrastructure 250 without additional cables. The ventilation machine 710, for example, can serve as a master 800 and as an energy feed and information interface.
[0162] FIG. 5 shows a simple Luer lock according to ISO 80369-7, which realizes a standardized mechanical connection between a first and a second connecting piece 100, 101 of the connecting conductor system. The fluid conduction and transfer system according to the invention observes mechanical compatibility with the Luer system, which closes or opens the connection of two parts by means of a half turn. As a result of the integration of a circuit (IC) 170 with a receiver coil 200, 202 in at least one first connecting piece 100, 101 of the Luer lock connection and a further coil 200, 202 in a second connecting piece 100, 101 of the Luer lock connection, both data and energy can be transmitted. Such connecting pieces are used in the infusion system 10 according to FIG. 1.
[0163] The connecting pieces of FIGS. 6A to 8C which follow are preferably also Luer lock connecting pieces according to ISO 80369-7. However, the connecting pieces can also be other connecting pieces according to the ISO 80369 family of standards.
[0164] FIGS. 6A to 6C show three versions of a connection of two connecting pieces 100, 101 having planar transmission devices 202, 204, 206, 207, 302, 304, 306, 307.
[0165] Regarding the essential features, the connecting pieces 100, 101 of FIG. 6A correspond to the design of FIG. 5. At the end of the two fluid lines 400 is, in each case, a connecting piece 100, 101, which is attached to the tube body 410 and has in each case a conduction section 110 through which a fluid channel 111 passes. The right connecting piece 100, 101 in FIGS. 6A to 6C is female and the left connecting piece 100, 101 is male. This means that the conduction section 110 of the left connecting piece 100, 101 is pushed into the conduction section 110 of the right connecting piece 100, 101. The conduction sections 110 are conical in order to create a secure fluid connection.
[0166] Besides the liquid communication through the conduction section 110, the connecting pieces 100, 101 are arranged in relation to one another in such a way after coupling that data transmission and/or energy transmission is possible owing to the coils 202, 302 in the region of collars 120 integral with the conduction sections 110, which coils were already described in relation to FIG. 5.
[0167] In the design according to FIG. 6B, the two connecting pieces each have two disk-shaped concentric electrode elements 204, 304 for capacitive coupling in a circumferential collar 120. As a result, bidirectional communication between the connecting pieces 100 is possible, for example.
[0168] In the design according to FIG. 6C, disk-shaped circumferential contact surfaces 207 are provided on the side of the right connecting piece 100, 101. Corresponding sliding contacts 206 are arranged on the left connecting piece.
[0169] FIGS. 7A to 7C likewise show connecting pieces 100, 101 having conical conduction sections 110. However, here, the elements for data or energy transmission, i.e., the coils 202, 302, the contact surfaces 206, 306, 207, 307 or the electrode elements 204, 304, are not planar, but approximately annular or sleeve-shaped. They are integrated on or in the walls of the conduction sections 120. This means that reliable transmission is possible even with quite different insertion depths, as are possible with tapered connections. A further advantage resulting from the use of the conduction sections as carrier of the transmission devices is that rotatable coupling means such as union nuts can be used, the rotatability of which would make it structurally difficult to use a collar according to FIGS. 6A to 6C for the attachment of the transmission devices.
[0170] FIGS. 8A to 8C again show connecting pieces 100, 101 having coils, contact surfaces or electrode surfaces which are annular or sleeve-shaped. However, here, the corresponding elements are provided, firstly, in the region of an outer side of a coupling section 140 and, secondly, on a sheath wall 150 enveloping the coupling section.
[0171] FIG. 9A shows a connection between an infusion bag 700 or an infusion bottle and an infusion tube 400 having expanded electronics. What is integrated in the infusion bag 700 or its connecting piece 100 formed by the crimp cap 100, 102B according to ISO 8536-3 is a circuit (IC) 170 with a receiver coil 202, and what is comprised in the infusion tube 400 to be attached is a connecting piece 103 according to ISO 8536-4 with a further coil 202, meaning that the two components—if they have been connected to one another—are inductively coupled with regard to information and energy. As a result, data and energy can be transmitted and exchanged via the integrated data line 250 in the infusion tube 400.
[0172] FIG. 9B shows an alternative design in which the connecting piece 100 on the sides of the infusion bag 700 or the infusion bottle 700 is a plug 100, 102A according to ISO 8536-2, equipped with a transmission coil 202 and a circuit 170.
[0173] FIG. 10 shows the connection between connecting pieces 100 in the form of an implanted port 100, 103 and a port needle 100, 104 according to ISO 10555-6 and a cannula of the port needle with expanded electronics as an example of an access unit. What is situated in the implanted port 100, 103 is a circuit 170 with a receiver or transmission coil 202, 302, and what is integrated in the port needle 100, 104 is a further receiver or transmission coil 202, 302 which is connected to the data line 25, which is parallel to the infusion solution in the infusion tube (i.e., the connecting conductor system). As a result, the transmission of data and energy between the infusion system including the port needle 100, 104 and the implanted port 100, 103 is possible.
[0174] On the left-hand side, FIG. 11 shows a conduction body 410 of a fluid line 400 in the form of a hose body, the connecting piece 100 of which is directly part of the hose body. The transmission device of the connecting piece is formed by a sleeve-shaped coil 202 which is surrounded by the material of the hose body. This connecting piece 100 integrated in the hose body is provided on a counter-connecting piece 100, depicted on the right, in the form of a stepped clamp sleeve. This too is provided with a sleeve-shaped coil 202 which, in the coupled state depicted, is arranged opposite the coil 202 of the other connecting piece, so that high efficiency of energy transmission and reliable data transmission are achieved. Such connecting pieces 100 are used in the drainage system 14 according to ISO 20697 according to FIG. 3.
[0175] FIG. 12 shows two connecting pieces 100, 107A according to ISO 5356-1 for a ventilation system. Similar to depictions 7A, transmission devices 200 with coils 202 are also provided here, which are integrated in the conical conduction sections 110 of the connecting pieces.
[0176] FIG. 13 shows connectors 107B according to ISO 5367, which are likewise used in a ventilation system such as that in FIG. 4, especially for connection of a fluid line 400 having a hose body 410 to the ventilation machine 710. The connectors 107B are in turn each formed with a coil 202 for data and/or energy transmission. One of the connectors 107B or both connectors 107B can be additionally provided with an integrated circuit that is not depicted.
[0177] FIG. 14 shows two connecting pieces 108A of a blood port of a dialysis cartridge 600. The connecting pieces 108A are connecting pieces according to ISO 8637-1 and ISO 8637-2, which are designed for a tight connection by means of conical conduction sections. Again, conductors 250 are provided on the connecting pieces 108A, which are connected to coil 202 for data and/or energy transmission.
[0178] FIG. 15 shows two connecting pieces 108B according to ISO 8637-1 of a dialysate port of a dialysis cartridge 600. The connecting piece depicted on the right-hand side is usually provided on the dialysis cartridge 600. It has a circumferential groove into which a latching element of the connecting piece 108B on the left-hand side latches. Here too, conductors 250 are provided on the connecting pieces 108B, which are connected to coil 202 for data and/or energy transmission.
[0179] The connecting pieces 102A, 102B, 103, 104, 105, 106, 107A, 107B, 108A, 108B that have been shown and described can be provided with transmission devices of different types (capacitive, inductive, galvanic) in the manner elucidated in FIGS. 6A to 8C and can have the arrangements described there (planar or annular in the conduction section or in a coupling section).
[0180] FIGS. 16A and 16B show different designs of the conduction body 410 of fluid lines 400. In each case, conductors 250 for transmission of electrical energy or for data transmission run parallel to the conduction body 410 of the fluid lines 400. In the design according to FIG. 16A, the conductors are embedded in the material of the conduction body. Furthermore, the conductors in this design are laid helically around the central fluid channel.
[0181] In the design according to FIG. 16B, the conductor 250 is arranged outside the conduction body 410, but connected thereto by circumferential coupling bands 420.
[0182] FIG. 17 shows an infusion pump 500, as can be used in the infusion system 10. The infusion pump 500 is designed as a peristaltic pump. It has a pressure device 502 comprising a plurality of plungers which are arranged above a counter-pressure surface 504. Provided between the pressure device 502 and the counter-pressure surface 504 is an accommodation space for a fluid line 400. If the fluid line 400 is inserted in the state of FIG. 17, fluid can be conveyed through the fluid line 400 by means of the pressure device and the plungers thereof.
[0183] The fluid line 400 is provided with two conductors 250, which are connected to connecting pieces, not depicted in FIG. 17, at the line ends upstream and downstream of the pressure device 502. No conductor is provided in the central region in which force is applied to the fluid line by the pressure device. Instead, the conductors 250 end at, in each case, a connecting device 416 in the form of a coil for inductive transmission of electrical power and data, which coil is laterally attached to the conduction body and is provided in the immediate vicinity of a coil 506 fixedly arranged in the conveying device 500.
[0184] In this way, the conveying device 500 or an integrated circuit of the conveying device can communicate with further components of the infusion system upstream and downstream or supply them with electrical power.
[0185] FIG. 18 shows a central venous catheter 520. It has an access tube 522 which is fed by five inputs. They are each provided with a connecting piece according to the invention. All the connecting pieces or elements of the infusion system 10 that are coupleable thereto communicate via conductors 250 with an integrated circuit 170. It can, on the basis of these data, bring together what fluid sources are connected to the connecting pieces 100. As a result, problematic fluid combinations or else deviations from a medication plan are detectable. Also possible is a design in which the integrated circuit 170 additionally communicates with a sensor 180 which acquires sensor data in the body of the patient.
[0186] The peripheral catheter 540 of FIG. 19 likewise has an access tube 542. However, it is only fed by one line designed as a connecting piece 100. Usually, the catheter is provided with wings 544 for attachment.
[0187] The transmission device in the connecting piece 100 is provided with an integrated circuit which, as in the case too of the catheter of FIG. 14, can communicate with a sensor 180. Moreover, an LED 160 is provided, which can, for example, indicate if a specified limit value is exceeded or fallen short of by the sensor data.
[0188] FIG. 20 shows a three-way valve which has three connecting pieces 100 altogether.
[0189] The three-way valve has, in a manner not depicted in detail, a directional regulating valve which can be adjusted manually by means of a handle 562 in order to control which input is connected to the output in a communicating manner.
[0190] To capture the current state of the directional regulating valve, sensors 180, for example Hall sensors, are provided, which capture the position of a magnet 182 attached to the valve or to the handle. This information can be transmitted from an integrated circuit 170 to a connected component, for example an integrated circuit of the conveying device 500 that acts as a master.
[0191] FIG. 21 shows a valve bank 580, the structure of which functionally corresponds to coupling of multiple three-way valves. The valve bank 580 has three directional regulating valves having handles 582, which, in the same manner as the three-way valve of FIG. 17, with sensors 180 for capture and transmission of the current switching state by means of an integrated circuit 170.
[0192] FIG. 22 shows a dialysis cartridge 600, as is used in the system 12 of FIG. 2. The dialysis cartridge 600 has a connecting piece 100 at the upper end, which is provided for the admittance of the blood, and a connecting piece 100 at the lower end, at which the blood is delivered. The lateral connecting pieces 100 form the dialysate inflow and the dialysate outflow.
[0193] All four connecting pieces 100 are designed as connecting pieces according to the invention having a data transmission device and are connected by means of conductors 250 to an integrated circuit 170 attached on the outside. It can communicate thereover with connected components in order to check the validity of the structure and/or to send relevant data for transmission to another validating integrated circuit.
[0194] FIG. 23 shows an auxiliary port device 620. It comprises two connecting pieces 100 at the upper end and at the lower end, which are connected by a tube line 410. In addition, an auxiliary port branch 622 is provided, which is preferably connected to the tube line 410 by means of a valve and on which an additional connecting piece is provided. An additional fluid source, for example a syringe, can be connected here ad hoc.
[0195] The three connecting pieces 100 altogether are each connecting pieces according to the invention. They are connected by means of conductors to an integrated circuit 170 which, for example, registers the connection of a syringe to the connecting piece 100 of the auxiliary port branch 622 and transmits this information onward.
[0196] FIG. 24 shows a filter unit 640 for filtration of fluid which flows through. The filter unit 640 has a filter housing 642 which has, at opposite ends, two connecting pieces 100 according to the invention as inlet and outlet. The connecting pieces are connected via conductors 250 to an integrated circuit. It is additionally also connected to a filter sensor 180, which captures filtration parameters and thereby allows the integrated circuit 170, in the event of an abnormality, to transmit the relevant information to a connected component.
[0197] FIG. 22 shows a tube unit 720 for a rotary peristaltic pump. Such a tube unit has a tube loop 724 which is placed around the rotor of the peristaltic pump. The two ends of the tube loop 724 are provided on a central element 722 which is connected to an inlet tube and an outlet tube 400, which preferably have at their ends connecting pieces 100 according to the invention, which are not depicted.
[0198] In addition to an integrated circuit 170 which controls communication via the connecting pieces, what is also provided on the central element is a connecting device 416 similar to that of FIG. 17, via which electrical power and/or data communication is made available for the tube unit 720 and associated components of the overall system.
