ES1066582U - Dispenser device of syringes (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Syringe dispensing device, which is constituted by a programmable syringe pump and a set of valves with their associated electronics; the syringe of the syringe pump, the three vials and the activity and final measurement syringes are connected by means of silicone tubes; thus, the pump set of syringes and valves have a working configuration such that they allow directing the flow of the different fluids used in the dispensing through silicone tubes, from the respective solution vial to the syringes. This configuration is characterized by absolute control of the movement of fluids because it prevents the simultaneous opening of more than one valve, providing greater safety to the procedures, by the absolute control of fluid movement. (Machine-translation by Google Translate, not legally binding)

Description

Syringe dispensing device.

Object of the invention

The use of positron emitters in the Units of Nuclear Medicine supposes a considerable increase of the dose especially significant effective when referring to the dose equivalent in the hands for the staff. The fractionation, single dose dispensing and administration to patients, These are the procedures that contribute mostly to it. He special fractionation consists in obtaining the dose prescribed radiopharmaceutical from a transport vial, which contains a sufficient amount of radiopharmaceutical for a group of patients This fractionation in general is done manually, the operator being, essentially his hands, exposed to the radiation.

Although there are automatic devices fractionation and dispensing commercials, the reality is that its use in PET units (Positron Emission Tomography) is practically insignificant. The high cost in terms of investment  and fungible, and only a partial reduction in the dose it perceives the operator makes it unattractive for most of the facilities that perform PET scans, in terms cost-effectiveness, added to the high rate of failures.

The purpose of the device according to the present invention is the implementation of a dispensing system of syringes whose design principles are robust in their operation, and flexibility in its use, acceptable cost and ability to integrate with the unit's material resources (manipulation cell and activimeter).

An important feature of the device is that it is built in a simple way using existing devices in the market, it is controlled by an application program With a friendly user interface in Spanish language.

Background of the invention

4 commercial devices are known for perform the dispensing of syringes. In that sense they can be cited devices based on the use of pumps of the type peristaltic with set of dispensing tubes that are mounted on a faceplate and then on the actuator valves, or rocker type systems, where the syringe load is manual, the objective is the same, but they require manipulation of the vial of origin what is a disadvantage, or how to assemble the set single-use tubes are not reliable because of the type of valves used that are very sensitive to the position of the tubes and mounting them on a plate the probability of failure increases, not use a card to couple the control signals of the valves so they overheat and box. By  configuration it is not possible to perform measurement operations of the total activity They are very sensitive to measurement error of the activity dispensed if they use syringe protector for their measure.

Description of the invention

The syringe dispensing device of according to the present invention comprises: a syringe pump programmable, through which the movements of determined fluid volumes, five valves that control with opening / closing the passage of fluids and an electronic system Designed for valve selection. And the combination of a set of sterile single-use tubes, which by its configuration allows dispensing of syringes and even vials, minimizing the risk of microbial contamination.

The final syringe, which will finally be manipulated, is protected by a tungsten shield or tungsten-lead combination.

It is therefore an object of the present invention provide a syringe dispensing device of safe, stable and very flexible operation.

It is also the object of the invention to provide a easy-to-use dispensing device by the Username.

It is related object to provide a dispensing device for low cost and assembly syringes extremely simple

It is also the object of the invention to provide a easy-to-use dispensing device by the Username.

The syringe dispensing device is completely controlled by the specific software developed for this purpose. It was developed in the Visual C ++ language in order to obtain a user-friendly interface. To perform the dispensing of the syringe the operator can choose between different modes of operation: Manual , Automatic and Advanced Manual .

In Manual mode the user has two options: dispense by activity or volume. In the first case, you must enter the following data: the isotope used, the activity that the dispensed syringe should have, and the minutes from the current time for which you need the syringe with this specified activity. When executing the program, the syringe is dispensed with a radiopharmaceutical volume that was calculated with the data entered by the user and returns the time at which the dose should be injected into the patient. After dispensing the syringe with the radiopharmaceutical, the user can add the volume of saline desired to complete the volume of the syringe. The second option, dispense by volume, the user only enters the volume of radiopharmaceutical that he wishes to dispense and also has the option of adding saline solution.

In the Automatic mode the user enters the following data: the activity that the dispensed syringe must have and the minutes from the current moment for which the syringe is needed with this specified activity, the program takes by default the isotope data used and the total volume of the syringe. Thus the program will dispense the syringe with a radiopharmaceutical volume and complete the total volume set by default of the syringe with saline solution. Informing the user of the volumes of radiopharmaceutical and saline solution to be dispensed and the time at which the patient should be injected.

In the Advanced Manual mode, the user is the one who operates the opening and closing of the valves in order to select the corresponding vial or syringe, as well as enter volume to be mobilized. Finally select the direction of the fluid, this means if it will be infused or dispensed.

Any of the three modes allows the user prints a label with the dispensing data, the patient and institution data.

The other two screens, Start and Configuration are used for the system set-up and, for the modification of configuration parameters of the dispensing device and the enablement of communication between the computer and the programmable syringe pump respectively.

Brief description of the drawings

Figure 1.- Shows the diagram of the parts designed device components.

Figure 2.- Shows the connection diagram of the syringe pump with syringes, vials (vials and syringe final are in their respective shields that for simplicity are not show in the diagrams) and the valves.

Description of a preferred embodiment

As seen in figure 1 of the drawings that accompany the complete system is constituted by a compatible laptop, a programmable syringe pump, the valve system and associated electronics to drive through Programmable pump fluid control valves. The communication between the laptop and the syringe pump is performed by connecting to a serial port or usb port with serial adapter

Figure 2 shows the diagram of connection, via silicone tubes, of the syringe pump programmable (1) with the final syringe (2), the measuring syringe activity (3), the saline vial (4), the air vial (5) and the radiopharmaceutical vial (6), through valves v5, v4, v1, v2 and v3 respectively.

Claims (4)

1. Syringe dispensing device, which being constituted by a programmable syringe pump and a set of valves with their associated electronics; The syringe pump syringe, the three vials and the activity and end measuring syringes are connected by silicone tubes; Thus, the syringe pump and valve assembly have a working configuration such that they allow the flow of the different fluids used in the dispensing through silicone tubes, from the respective solution vial to the syringes. This configuration is characterized by absolute control of the movement of the fluids because it prevents the simultaneous opening of more than one valve, providing greater security to the procedures, by the absolute control of the movement of the fluids. 2. Syringe dispensing device according to claim 1 characterized by the use of the syringe of the programmable syringe pump to suck or propel the fluids into this syringe and then from it to the activity measuring syringe. Thus the use of syringe pump, provides control, and immediate visual verification of operation by the operator. 3. Syringe dispensing device according to claim 1 characterized by the use of sterilizable silicone tubes, arranged on the front of the dispenser and visible provide control, and verification of operation by the immediate operator. 4. Syringe dispensing device according to claim 1 characterized by the use of silicone tubes, vials and syringes; in this way, the configuration of the silicone tubes allows the dispensing to be carried out in syringes, or that these are replaced by vials for individual use.