Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
  • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
  • A61M5/142—Pressure infusion, e.g. using pumps
  • A61M5/14244—Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body
  • A61M5/14276—Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body specially adapted for implantation
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
  • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
  • A61M5/142—Pressure infusion, e.g. using pumps
  • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
  • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
  • A61M5/1458—Means for capture of the plunger flange
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M25/00—Catheters; Hollow probes
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
  • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
  • A61M5/142—Pressure infusion, e.g. using pumps
  • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
  • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
  • A61M5/1456—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons with a replaceable reservoir comprising a piston rod to be moved into the reservoir, e.g. the piston rod is part of the removable reservoir
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
  • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
  • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
  • A61M5/172—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body electrical or electronic
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B08—CLEANING
  • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
  • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
  • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
  • B08B9/027—Cleaning the internal surfaces; Removal of blockages
  • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
  • B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
  • B08B9/0436—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M25/00—Catheters; Hollow probes
  • A61M2025/0019—Cleaning catheters or the like, e.g. for reuse of the device, for avoiding replacement
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M2205/00—General characteristics of the apparatus
  • A61M2205/18—General characteristics of the apparatus with alarm
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M2205/00—General characteristics of the apparatus
  • A61M2205/33—Controlling, regulating or measuring
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
  • A61M2205/00—General characteristics of the apparatus
  • A61M2205/50—General characteristics of the apparatus with microprocessors or computers
  • A61M2205/502—User interfaces, e.g. screens or keyboards
  • A61M2205/505—Touch-screens; Virtual keyboard or keypads; Virtual buttons; Soft keys; Mouse touches

Definitions

• the present invention relates to an electronic and mechanical catheter cleaning system employing infusion or pulsed liquid injection applied in the health area and in medical products for the purpose of cleaning the intraluminal region of intravenous catheters and which aims to meet the ideal liquid flow conditions necessary for the cleaning process, through an apparatus and process accepted by the medical and scientific community as fundamental to the execution of a catheter cleaning process efficiently and bringing advantages of automation of the cleaning process of the catheter, greater precision and repeatability of the operation of the cleaning process, elimination of human error when carrying out the cleaning procedure, possibility of using conventional disposable syringes, being portable, having a low cost and greater efficiency and safety.
• US patent application US20100076370 entitled “Apparatus and methods for cleaning catheter systems” which disclosed apparatus and methods for providing controlled pressure pulses in the infusion of liquids through a catheter, in order to generate a turbulent regime aiming to increase efficiency in cleaning process.
• the realization of such controlled pressure pulses is provided by a variety of inventive devices using the push-stop method such as: Disposable syringes with modified pistons or rods, conventional syringe-outputtable devices containing valves and deformable elements, and still a system composed of a pressure pump and valves connected to the infusion line that allow to perform the pulsed and digitally controlled infusion.
• modified disposable syringes such as those cited in U.S. Patent No. 20100076370 can minimize the effects of non-uniformity with regard to performing the manual catheter cleaning process using conventional disposable syringes.
• these products still require a certain degree of professional skills for performing the catheter cleaning process.
• these devices are intended for a specific application (catheter cleaning) and are disposable, which may contribute to an increase in the costs of the procedures.
• the use of modified disposable syringes also exposes the operator to occupational hazards, related to repetitive strain.
• Certain programmable medical infusion pumps employing conventional disposable syringes are capable of providing intermittent flow.
• these devices fail to meet the recommended flow parameters, pulse duration and interval between successive pulses required to generate a turbulent flow within the catheter and hence an efficient catheter cleaning process due to the limitations of the mechanical parts , electronics and software / firmware, which are not developed for the application of pulsed and turbulent catheter cleaning.
• This disadvantage is related to the fact that these devices are designed for another purpose which is the continuous and uniform infusion of liquids.
• object of the present invention has been developed to overcome the drawbacks, limitations and drawbacks of the present systems, by means of a system containing an electronically controlled mechanical actuator, designed to act on a reservoir, preferably a liquid-filled disposable syringe and generate a turbulent, pulsed and precisely controlled flow so that it meets operating requirements such as flow rate and time intervals related to the pulses accepted by the medical and scientific community as fundamental to the execution
• the present patent provides advantages of automation of the catheter cleaning process, uniformity as to accuracy and repeatability, minimization of human error in performing the cleaning procedure, improved patient safety, minimization occupational hazards d the health professionals, the possibility of using conventional disposable syringes, be portable and with low relative cost.
• programmable infusion medical pumps fail to meet the recommended flow parameters, pulse duration, and interval between successive pulses required to generate a turbulent flow within the catheter and, consequently, to an efficient catheter cleaning process, due to limitations of the mechanical, electronic and programming parts.
• Solved by the present invention which has been designed so as to use a combination of mechanical, electronic and software / firmware components specifically chosen and / or developed for performing the pulsed mode liquid infusion process, in order to generate a turbulent flow, and which meets the recommended flow parameters, pulse duration and interval between successive pulses.
• FIGURE 1 which shows a top perspective view of the open capped apparatus of the system of the present patent.
• FIGURE 2 which shows a detailed front view of the uncovered apparatus of the system of the present patent.
• FIGURE 3A showing a left side view of the apparatus without cap of the system where the syringe body holder can be observed in more detail.
• FIG. 3B showing a right side view of the apparatus without a cap of the system where the syringe body holder can be observed in more detail.
• FIG. 4 shows a top view of the apparatus of the capless system of the present patent wherein details of dashed line base and full line mobile support are shown.
• FIGURE 5 which shows the block diagram of the interconnections between the components of the electronic control system of the present patent.
• FIGURE 6 which shows block diagram of the operating process performed by the system of the present patent.
• the present invention is comprised of a portable infusion system having a combination of specifically selected and / or developed mechanical, electronic and software components for infusing pulsed liquids to generate a turbulent flow within an intravenous catheter, precisely and in accordance with the recommended parameters for an efficient and high degree of repeatability of catheter cleaning.
• automation in determining the type of syringe and the volume of fluid contained in the syringe facilitates the use of the infusion system.
• the system of the present invention uses components and functions which are also found in systems with syringe pumps for continuous infusion of liquids, specifically the base 1 with a syringe body holder 1A, , which contains a "v" -shaped slot (1-Al); actuating assembly (3) with a slide actuator (3-A), having a v-shaped shoulder (3-A-1), and a slide actuator bracket (3-B); adjustable clip (4) of the spring clip type, connected to a position sensor (4-A) through a rod (4B); an electronic control platform (8) with a processing unit (8-A), a storage unit (8-B), an electrical circuit for regulating voltage and current values (8-C) and a communication unit 8-D), preferably USB or wireless; a display (9) preferably of LCD or LED; control buttons (10) for resistive or capacitive drive; and an alarm (11) with a piezoelectric device, or the like, for audible alarm outputs.
• the system of the present invention provides additional components and is further comprised of a rectangular slot (1-B), a prismatic aperture (1-C) rectangular and an aperture (1-D) in the cylindrical shape in the base (1); a movable support (2) with a rectangular slot (2A) for accommodating the flange (SlA) of the syringe (S), a non-contact position sensor (2B), preferably a reflection sensor of electromagnetic waves in the infrared region for determining the position of a given object and a contact-operated limit sensor (2-C) and a spring-like elastic (2-D) component; an internal thread (3-Bl) compatible with the thread of the threaded shaft (5); a threaded shaft (5) with a thread, preferably with an advancement greater than 2 mm; a step motor (6) capable of linearly displacing the actuating assembly (3) against a force of at least 5N and having a linear feed rate of at least 10 mm per second, preferably compact, with maximum dimensions of the order 30 mm wide by 30
• a syringe (S) with syringe body (S1) and syringe plunger (S-2) filled with the liquid of interest, preferably saline solution, is placed in the system so that the syringe the syringe body Sl is accommodated on the support for the syringe 1A and so that the flange of the syringe SlA is accommodated in the slit 2A contained in the movable holder 2.
• the circular base of the syringe plunger (S-2 A) must be in contact with the slide actuator (3-A) and accommodated in the shoulder (3-Al) so as to ensure alignment between the syringe body and the circular base of the syringe plunger (S-2-A).
• the adjustable fastener 4 is used to apply force against the syringe body S-1, keeping the syringe body S-1 in contact with the surface of the holder 1A.
• the sliding actuator 3A is attached to the support of the sliding actuator 3B which contains an internal thread 3B, forming an actuation assembly 3 that has its movement restricted to a displacement linear.
• the threaded shaft 5 has contact with the internal thread 3-B-1 and is connected to the step motor 6.
• the stepper motor (6) is fixed to the base (1), fed by the internal voltage source (7) and controlled by the electronic control platform (8).
• the movable holder (2) is fitted into a slot (1-B) in the base (1) of the apparatus.
• the slit (1B) restricts the movement of the movable support (2) to a linear movement with an amplitude in the range of 0.5 to 2 mm.
• the mobile holder 2 contains a slit 2A in rectangular form and preferably a non-contact sensor 2B which monitors the position of the actuation assembly 3.
• the portion of the holder for the syringe 1A closest to the movable support 2 contains a switch type contact button 2C in the aperture 1C and an elastic member 1A. 2-D) partially accommodated in the aperture (1-D).
• the elastic member 2D keeps the movable holder 2 separate from the side of the holder for the syringe 1A at a distance in the range of 0.5-2 mm, so that the contact button 2-C) is not pressed.
• the contact button (2-C) is not activated.
• the inner part of the carrier 1A contains a position sensor 4A connected to the adjustable fastener 4 via a rod 4B.
• the sensor 4A relates the position of the adjustable fastener 4 with an electrical property, for example the electrical resistance in a potentiometer, and correlates the value of the electric property with the outside diameter of the central portion of the syringe body ).
• the base of the equipment (1) contains the data input and output devices for the operator interface which are: the LCD or LED display (9); control buttons (10), by actuation resistive or capacitive. Another possibility is the use of a touchscreen interface, not shown in the figure, to replace the control buttons.
• the electronic control platform 8 is shown in more detail in figure 5.
• the electronic control platform 8 of the present patent is composed of: a processing unit 8A, provided with a suitable microprocessor to medical equipment and preferably containing two or more processing cores or the like; a storage unit (8-B), with one or more FLASH and / or EEPROM memory units and containing the firmware / software; digital and analogue input and output units, not shown in the figure; an electric circuit for regulating voltage and current values (8-C); and a communication unit (8-D) having ports for communication via USB cable, or the like, as well as transmitters and receivers for wireless communication, via wifi, bluetooth, or the like.
• the processing unit 8A is unidirectionally connected to the sensors 2-B, 2-C and 4-A and to the interface components with the operator 9, 10, and (8c), the communication unit (8-D), and the stepper motor (6) are connected to the storage unit (8b) ).
• the stored unit (8-B) is bi-directionally connected to the processing unit (8-A).
• the electrical circuit for regulating the voltage and current values 8-C is bi-directionally connected to the internal power supply 7 and the processing unit 8A.
• the communication unit (8-D) is connected bidirectionally to the processing unit (8-A).
• the present patent system has, in summary, brought the novelty of an apparatus for infusing pulsed and turbulent liquids through a catheter in a manner sufficient to clean the catheter and comprising: means for securing the syringe to the base of the apparatus ; means for moving the plunger from the syringe toward the tip; means for determining the volume of fluid within the syringe in an automated manner; means for controlling the displacement of the piston in a pulsed manner and with well defined time intervals; and means for detecting and reporting malfunctions.
• the innovation related to determining the volume of fluid inside the syringe in an automated manner is characterized by the use and combination of the components: the slit (1-B); (2-A), non-contact position sensor (2-B), contact button (2-C) and elastic component (2-D).
• the spring clip type adjustable fastener 4 is connected to a position sensor 4A through a shank 4B. is placed on the syringe body (SI) and the diameter of the syringe is determined electronically.
• the sliding actuator 3A moves continuously and uniformly from its initial position into contact with the circular base of the syringe plunger S-2A, forcing the movable holder 2, to move and press the contact button (2-C).
• the total displacement performed by the slide actuator 3A is determined electronically and correlated with the position of the plunger of the syringe.
• the total volume of liquid inside the syringe is determined electronically.
• the innovation related to the automatic control of the displacement sequence to obtain a pulsed flow regime is characterized by the fact that the sequence of commands controlling the movement of the stepper motor (6) and that of the slide actuator (3-A ) is automatically defined, via the processing unit (8-A), based on the volume of the syringe and the volume of liquid contained in the syringe obtained in previous steps.
• the firmware automatically adjusts the feedrate of the slide actuator (3-A) to move 5 mm per second, which corresponds to an infusion of 1 ml / s, pausing at 100 ms, repeating this task 5 times totaling the infusion of the 5 ml of fluid contained within the syringe.
• Innovation related to the automatic safety means for detecting advances with speeds outside the predefined limit is characterized by the use of the non-contact sensor (2-B), which monitors the position of the actuation assembly (3).
• the processing unit 8-A interrupts the operation of the unit and issues the user's due warning.
• the stepper motor (6) rotates the threaded shaft (5) and the internal thread (3-Bl) of the slide actuator bracket (3-B) converts the rotation movement of the (5) in a translational movement of the actuation assembly (3).
• the sliding actuator 3A acts on the circular base of the syringe plunger (S-2-A) causing the entire syringe (S) to move in the same direction.
• S-2-A the syringe flange
• movement of the syringe S results in a movement of the holder 2 which compresses the spring 2C, drives the contact button 2-C) and contacts the carrier (1-A).
• C) prompts the operator to select the mode of operation, if chosen the automatic mode of determining the volume of fluid contained in the syringe goes to "D” if it does not go to "Ca";
• Ca) displays a list with the syringe model and the total volume of the syringe and prompts the selection of the parameter to the operator;
• Cb) shows a list with liquid volume contained in the syringe and requests the parameter selection to the operator
• Cc requests the operator to confirm the parameters: model, total volume and volume of liquid contained in the syringe, if confirmed by the operator continues the process "Ce” if not to "Cd";
• Cd tells the operator if he wants to continue in manual mode, if yes return to "Ca”, if not return to the beginning "A";
• Cf requests insertion of the syringe and confirmation of the operator, if confirmed the insertion continues the process going to "J", if it does not display error message and remains until confirmation of insertion of the syringe;
• the processing unit uses the value of the syringe diameter and the end position of the actuator to determine the model, the total volume of the syringe and the volume of liquid contained in the syringe based on the values stored in the memory unit;
• [061] H) shows information on the model, the total volume of the syringe and the volume of liquid contained in the syringe;
• K requests the operator to confirm the cleaning process, if confirmed the process continues to "L” if it does not return to "J";
• [066] M) sets the motor operation so that the actuator moves in a pulsed mode using predefined parameters based on the values relative to the model, the total volume of the syringe and the volume of liquid contained in the syringe;
• R interrupts the operation of the actuator and issues a malfunction warning informing the operator, if canceled cancels the cleaning process, if not return to "J";
• the present patent system has in brief provided the novelty of an apparatus for infusing pulsed and turbulent liquids through a catheter in a manner sufficient to clean the catheter and comprising: means for securing the syringe to the base of the apparatus ; means for moving the plunger from the syringe toward the tip; means for determining the volume of fluid within the syringe in an automated manner; means for controlling the displacement of the piston in a pulsed manner and with well defined time intervals; and means for detecting and reporting malfunctions.
• the system of the present invention is comprised of a base (1) with a syringe body holder (1-A), which contains a groove (1-Al); (3) with a slide actuator (3-A), having a shoulder (3-Al), and a slide actuator holder (3-B; a position sensor (4-A) through a rod (4B), an electronic control platform (8) with a processing unit (8A), a storage unit (8B), an electrical circuit for adjusting the voltage and current values 8-C and a communication unit 8-D, a display 9, control buttons 10 and an alarm 11 and further comprising a slot 1 (2-A) in the rectangular shape, a rectangular prismatic aperture (1-C) and a cylindrical aperture (1-D) in the base (1); (2A), preferably a sensor which uses the reflection of electromagnetic waves in the infrared region to to the position of a given object and a stroke end sensor triggered by contact (2c) and the elastic member (2d); an internal thread (3-Bl) compatible with the thread of the threaded shaft (5); a
• the innovation related to determining the volume of fluid inside the syringe in an automated manner is characterized by the use and combination of the components: the slit (1-B); (2-A), non-contact position sensor (2-B), contact button (2-C) and elastic component (2-D).
• the spring clip type adjustable fastener 4 is connected to a position sensor 4A through a shank 4B. is placed placed on the syringe body (S I) and the diameter of the syringe is determined electronically.
• the sliding actuator 3A moves continuously and uniformly from its initial position into contact with the circular base of the syringe plunger S-2A, forcing the movable holder 2, to move and press the contact button (2-C).
• the total displacement achieved by the slide actuator 3A is determined electronically and correlated with the position of the plunger of the syringe.
• the total volume of liquid inside the syringe is determined electronically.
• the innovation related to the automatic control of the displacement sequence for obtaining a pulsed flow regime is characterized by the fact that the sequence of commands controlling the movement of the stepper motor (6) and that of the slide actuator (3-A ) is automatically defined, via the processing unit (8-A), based on the volume of the syringe and the volume of liquid contained in the syringe obtained in previous steps.
• the firmware automatically adjusts the feedrate of the sliding actuator (3-A) to move 5 mm per second, which corresponds to an infusion of 1 ml / s, pausing at 100 ms, repeating this task 5 times totaling the infusion of the 5 ml of fluid contained within the syringe.
• the stepper motor (6) rotates the threaded shaft (5) and the internal thread (3-B) of the slide actuator holder (3-B) converts the rotation movement of the (5) in a translational movement of the actuation assembly (3).
• the sliding actuator 3A acts on the circular base of the syringe plunger (S-2-A) causing the entire syringe (S) to move in the same direction.
• the syringe flange (SlA) is positioned in the slit (2A)
• movement of the syringe S results in a movement of the holder 2 which compresses the spring 2C, drives the contact button 2-C) and contacts the carrier (1-A).
• Ca) displays a list with the syringe model and the total volume of the syringe and prompts the selection of the parameter to the operator;
• Cb) displays a list with liquid volume contained in the syringe and requests the parameter selection to the operator;
• Cc requests the operator to confirm the parameters: model, total volume and volume of liquid contained in the syringe, if confirmed by the operator continues the process "Ce", if not to "Cd";
• Cd tells the operator if he wants to continue in manual mode, if yes return to "Ca”, if not return to the beginning "A";
• the processing unit uses the value of the syringe diameter and end position of the actuator to determine the model, the total volume of the syringe and the volume of liquid contained in the syringe based on the values stored in the memory unit;
• [095] H) shows information on the model, the total volume of the syringe and the volume of liquid contained in the syringe;
• [0100] M) sets the motor operation so that the actuator moves in a pulsed mode using predefined parameters based on the values relative to the model, the total volume of the syringe and the volume of liquid contained in the syringe;
• R interrupts the operation of the actuator and issues a malfunction warning informing the operator, if canceled cancels the cleaning process, if not return to "J";

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• Health & Medical Sciences (AREA)
• Heart & Thoracic Surgery (AREA)
• Engineering & Computer Science (AREA)
• Life Sciences & Earth Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• Biomedical Technology (AREA)
• Hematology (AREA)
• Anesthesiology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Vascular Medicine (AREA)
• Pulmonology (AREA)
• Biophysics (AREA)
• Mechanical Engineering (AREA)
• Infusion, Injection, And Reservoir Apparatuses (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=66437401

Family Applications (1)

Country Status (2)

Cited By (1)

• 2017
  • 2017-11-07 BR BR102017023961A patent/BR102017023961A2/pt not_active Application Discontinuation
• 2018
  • 2018-11-06 WO PCT/BR2018/050405 patent/WO2019090406A2/fr active Application Filing

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