MXPA98007957A - Self-priming solution lines and a method and system for using same - Google Patents

Abstract

A system, a method and administration lines are provided for self-priming of a solution delivery system. The administration lines are arranged such that resultant forces acting on the lines create different forces applied on each lumen resulting in solution flowing in one of the lumen undergoing a higher isostatic pressure. The lumens forming the administration line may be formed from concentric tubings or formed from separate tubings extending varied lengths into the solution container. As a result, automatic priming of the administration line and the solution delivery system is provided.

Description

"SOLUTION LINES WITH AUTO PUMPING AND A METHOD AND SYSTEM TO USE THE SAME" BACKGROUND OF THE INVENTION The present invention relates to a system and method for self-pumping, as well as to a line of solution used with the system and method. More specifically, the present invention relates to a system and method for self-pumping solution lines of a system, including a substance container and an attached set that provides fluid communication with the substance container.

It is known that a container of substances is commonly provided with an attached set. Said set provides fluid communication between the interior of the substance container and allows the transfer of said solution from the interior of the container to a remote location, such as a patient or other container. A typical use of said container occurs in the field of ambulatory peritoneal dialysis (CADP). Often a procedure is carried out "evacuation" to avoid the infusion of air into the peritoneal cavity, by "pumping" the administration line with a solution; and to serve as a microbial cleaner for each component of the set prior to the administration of the solution to, for example, a patient. There are a large number of products available to supply substances. Some of the products are supplied without air or gas in the line or lines of administration. However, to manufacture such products without air or gas, special materials are required to be used and / or a very heavy manufacturing equipment to cause a vacuum before filling. Generally, when a flexible container is filled with a solution, the lines that lead to the container are not completely filled with the solution, since there is no way to remove the existing air or gas, since the resulting forces, such as surface tension , weight of the water column and gravity, applied on a given volume, are equal to zero within the administration line, because there is equilibrium. Therefore, unless special equipment or materials are deployed to create a vacuum before filling, air or gas may be present in the administration lines or container. Therefore, there is a need for a system, method and administration lines that overcome these drawbacks by providing a simplified arrangement for self-pumping. The present invention provides a system, a method and a management line for self-pumping a fluid supply system due to the specific design of the administration lines that create a difference of the forces applied in each lumen of the line of delivery. administration to create a higher isostatic pressure in one of the lumens of the administration line.

For this purpose, in a prototype, a system for self-pumping a fluid supply system is provided. The system has a container with an interior that holds a substance. A camera is placed in a place under the current and away from the container that has an interior. A first lumen is provided in fluid communication with the solution inside the container. The first end of the first lumen extends into the interior of the container and a second end of the first lumen extends into the chamber. A second lumen is provided in fluid communication with the substance within the container, wherein a first end of the second lumen extends within the container at a distance greater than the first end of the first lumen, and a second end of the second lumen is extends inside the camera. In a prototype, the first and second lumens are integrally formed having a common wall separating the first lumen from the second lumen. In a prototype the second lumen is placed concentrically within the first lumen.

In a prototype, the first lumen and the second lumen share a common wall and are asymmetrical with respect to the wall. In a prototype, the first lumen is placed away from the second lumen. In a prototype, the system has a first port to which the first lumen is attached, and a second port, to which the second lumen is attached, where the second port extends from the container at a distance greater than the first port. In a prototype, the first lumen and the second lumen are integrally formed and a first end of each of the lumens is beveled to form an angle at the tip inside the container. In a prototype, a clamp is provided to separate the camera into two areas. In another prototype of the present invention, a line of administration is provided between a container having an interior containing a substance and a chamber having an interior. The administration line has a first lumen with two ends, wherein the first end extends into the interior of the container and a second end extends into the interior of the chamber to provide fluid communication between the container and the chamber. A second lumen has two ends, wherein the first end of the second lumen extends within the container at a distance greater than the first end of the first lumen, and the second end extends into the interior of the chamber to provide fluid communication between the lumen. container and the camera.

In a prototype, the first lumen and the second lumen are integrally formed. In a prototype, the first lumen and the second lumen are separated from each other. In a prototype, the first lumen and the second lumen are placed concentrically, and the second lumen extends through the first lumen. In a prototype, the first lumen and the second lumen share a common wall and are asymmetrical with respect to the wall. In a prototype, the first lumen and the second lumen are integrally formed and the first end of each of the lumens is beveled to form an angled tip inside the container. In another prototype of the present invention, a method for self-pumping a fluid supply system is provided, the method comprising the steps of: providing a container with an interior supporting a substance; with a first lumen in fluid communication with the substance inside the container, wherein the second lumen extends within the interior of the container at a distance greater than that of the first lumen. In a prototype, the method further comprises the step of; providing a camera in fluid communication with the first lumen and the second lumen, wherein the camera is positioned away from the container, such that the substance of the container flows through the first and second lumen into the chamber. In a prototype, the first lumen and the second lumen are integrally formed. In a prototype, the first lumen and the second lumen are separated from each other. In a prototype, the first lumen and the second lumen share a common wall and are asymmetrical with respect to the wall. In a prototype, the first lumen and the second lumen are placed concentrically, and the second lumen extends through the first lumen. It is therefore an advantage of the present invention to provide a system and method for self-pumping a delivery system and a management line for use with said system, which results in a simplified self-pumping of the delivery system. Another advantage of the present invention is to provide a system, method and administration line for rapidly self-pumping the delivery system. Yet another advantage of the present invention is to provide a system, method and administration line for pumping the supply system in an economical manner.

Another advantage of the present invention is to provide a system, method and administration line for self-pumping a supply system without requiring special materials to be carried out. Still further, an advantage of the present invention is to provide a system, method and administration line for self-pumping a supply system without requiring any sophisticated manufacturing equipment. Other forms and advantages of the present invention are described in the detailed description of the prototypes of the invention and the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 illustrates a plan view, partly in transverse detail, of a prototype of a container of a substance and an attached set of the present invention. Figure 2 illustrates a cross-sectional view of a prototype of an administration line of the present invention. Figure 3 illustrates a flat, partially transverse view of a prototype of the substance container and the attached set of the present invention.

Figure 4 illustrates a flat, partially transverse view of another prototype of a substance bag and a set of the present invention.

Figure 5 illustrates a cross-sectional view of a prototype of a double lumen administration line of the present invention.

DETAILED DESCRIPTION OF THE PROTOTYPES OF THE INVENTION The present invention provides a system and method of self-pumping of one or several lines of administration. More specifically, the present invention provides a method for self-pumping a solution line from a container having a substance, the line being a part of the attached set that provides fluid communication between the inside of the container and the set. Referring now to the drawings where the numbers refer to a specific part identified with the same number, Figure 1 illustrates a prototype of a system 1 that provides self-pumping of a management line 10. The administration line 10 is connected to a substance container 12 at a first end, and to a second substance container or chamber 14 at the opposite end of the administration line 10. A first end 16 of the administration line 10, is configured in such a way that when the container 12 is hung vertically, the solution in container 10 exerts a different isostatic pressure on each lumen 18,20 of administration line 10.

The chamber 14 is connected to a second end 22 of the administration line 10 and allows the closing of the turn formed by the dual lumens 18, 20. As a result, self-pumping of the administration line 10 occurs. The dual lumens 18, 20 formed in the administration line 10 are made of a material that reduces the surface tension to prevent a drop of liquid or gas from becoming trapped inside. of lumens 18, 20. In a prototype, the administration line 10 and the dual lumens 18, 20 are made of polymer material, preferably polyvinyl chloride or polyolefin material such as metallocene polyethylene with a density range of 0.87 to 0.91 grams per cubic centimeters, amorphous or low crystallinity polypropylene with a Young's Modulus of 3,000 to 20,000 pounds per square inch ethylene-vinyl acetic, ethylene methylacrylate, S-EB-S (styrene-ethylene butadiene-styrene), thermoplastic styrenic elastomer. Or a combination thereof The lines and a pipe with multiple lumens can be made from a single ingredient or with the mixture of two or more of the mentioned materials. Furthermore, said pipe may be obtained by extruding or coextruding one or more of the materials into a single layer or multiple layer pipe. When the container 12 is filled with substances, the administration line 10 connected to the container 12 is not completely filled with solution because there is no way for the air or gas to be removed from the container, since, within the administration line 10, the forces resulting from the surface tension, weight of the column of the solution and gravity applied to a given volume is zero (equilibrium). However, when the administration line 10 includes a round formed by the lumens 18, 20, a difference is created between the forces applied on one of the lumens of the administration line 10 due to the proper design of the administration line 10. When the container 12 is hung, the substance flows into the lumen which is subjected to a greater isostatic pressure. A bolus of the substance presses through the turn formed by lumens 18, 20, forcing the volume of gas or air back into the container 12. The movement created by the volume of air or gas maintains the dynamics of the solution, since it forces the volume of liquid. As a result, both lumens 18, 20 of the administration line 10 are completely filled with substance, as a result of the force of gravity which forces the solution of the container 12 into the administration line 10 initiating, consequently the self-pumping process. As illustrated in Figure 1, the administration line 10 consists of dual lumens 18.20, which can be single sections of a single lumen tubing converted to a double lumen tubing. Figure 2 illustrates a cross-sectional view of the administration line 10 and the lumens 18, 20. They are asymmetric to reinforce the difference in surface tension already generated by the bevel formed at the first end 16 of the administration line. The asymmetric shape of lumen 18, 20, as illustrated in Figure 1, improves self-pumping. Another prototype of a system 100 for self-pumping of administration lines 110 is illustrated in Figure 3. As shown, system 100 has a pair of administration lines 110 connected to a substance container 112. Ports of pipe 114 and 116 of different lengths to create a difference in the applied forces on each of the lumens of the administration lines 110. As in system 1 illustrated when referring to the Figure 1, the administration line 110 are attached to the chamber 118 that can be closed by means of a clamp. An area 122 of the camera 118 is sectioned from the rest of the camera 118 and is terminated by a connector 124. Of course, they can be implemented for a particular application., in which the self-pumping of the administration lines 110 is required. As a result of the unique arrangement of the administration line 110 and its position with respect to the interior of the substance container 112 via ports 114 and 116, the lines Administration 110 may be purged after connection. Referring now to Figures 4 and 5, another prototype of a management line is shown which creates a system 200 for self-pumping. The system 200 includes a smaller lumen 210 within a larger lumen 212. The lumens 210 and 212 are in fluid communication with a substance container 214. The lumen 210 is adjusted to the substance container 214 in such a way that it extends Within the interior of the container 214 at a distance A beyond the lumen 212. As a result, a difference in forces is created, activating the self-pumping process of the administration lines formed by the lumens 210 and 212. In FIG. shows a cross-sectional view of the smaller lumen 210 and the larger lumen 212. As previously described when referring to Figures 1 and 3, the lumens 210 and 212 may be in fluid communication with a second chamber 216. As was also described above, the second chamber 216 may be divided by a clamp 218 creating a smaller area 220 in which the port 22 is accessible separately. Although the present invention has been described for applications that are related to peritoneal dialysis wherein a flexible container of substances contains a substance to be delivered via administration lines, the present invention can also be applied to any other system that requires pumping. in its lines of administration before being used, as systems of administration of medicines and similar. It should be understood that changes and modifications to the prototypes of the present invention will be apparent to those skilled in the art. Said changes and modifications can be made without departing from the spirit and protection of the present invention and without diminishing its advantages. Therefore, it is intended that said changes and modifications be covered by the following Claims.

Claims (20)

1 - . 1 - A system for self-pumping a fluid supply system, comprising: a container with an interior supporting a substance; a first lumen in fluid communication with the substance inside the container, wherein a first end of the first lumen extends within the interior of the container and a second end of the first lumen extends within a chamber; and a second lumen in fluid communication with the substance within the interior of the container, wherein a first end of the second lumen extends within the container at a distance greater than the first end of the first lumen, and a second end of the second lumen that is extends inside the camera. 2. The system of Claim 1 wherein the first lumen and the second lumen are integrally formed, having in common a wall separating the first lumen of the second lumen. 3. The system of Claim 1 wherein the second lumen is concentrically positioned within the first lumen. 4. The system of Claim 1 wherein the first lumen and the second lumen share a common wall and are asymmetrical with respect to the wall. 5. The system of Claim 1 wherein the first lumen is remote from the second lumen. 6. The system of Claim 1 comprising: a first port to which the first lumen is attached; and a second port to which the second lumen joins, wherein the second port extends from the container at a distance greater than the first port. 7. The system of Claim 1 wherein the first lumen and the second lumen are integrally formed and the first end of each lumen is beveled to form an angled tip inside the container. 8. The system of Claim 1 further comprising: a clamp for separating the bed into two areas. 9. A management line for connecting to a container, the container having an interior that holds a substance and a chamber that has an interior, the administration line comprising: a first lumen with a first and a second end, wherein the first end extends within the interior of the container and the second end extends within the interior of the chamber to provide fluid communication between the container and the chamber; and a second lumen having a first end and a second end, wherein the first end of the second lumen extends within the container at a distance greater than the first end of the first lumen, and the second end extends within the interior of the chamber , to provide fluid communication between the container and the camera. 10. The administration line of claim 9 wherein the first lumen and the second lumen are integrally formed. 11. The administration line of Claim 9 wherein the first lumen and the second lumen are located one away from the other. 12. The administration line of Claim 9 wherein the first and second lumen are concentric and the second lumen extends through the first lumen. 13. The administration line of Claim 9 wherein the first lumen and the second lumen share a common wall and are asymmetric with respect to the wall. 14. The administration line of Claim 9 wherein the first lumen and the second lumen are integrally formed and the first end of each lumen is bevelled to form an angled tip inside the container. fifteen - . 15 - A self-pumping method of a fluid supply system, the method comprising the steps of: providing a container with interior containing a substance; provide a first lumen in fluid communication with the substance inside the container; and providing a second lumen in fluid communication with the solution within the interior of the container, wherein the second lumen extends within the interior of the container at a greater distance than the first lumen extends within the interior of the first container. 16. The method of claim 15, further comprising the step of: providing a camera in fluid communication with the first lumen and the second lumen, wherein the chamber is located away from the container, such that the substance of the container flows through the first lumen and the second lumen into the chamber. 17. The method of claim 15 wherein the first lumen and the second lumen are integrally formed. 18. The method of Claim 15 wherein the first lumen and the second lumen are positioned separately. The method of claim 15, wherein the first and second lumen share a common wall and are asymmetrical with respect to the wall. 20. The method of Claim 15 wherein the first lumen and the second lumen extend through the first lumen.