Structuring of a liquid flow controller consisting of two parts

Abstract

The invention relates to the developments made on the liquid flow adjustor, known as the flow rate adjustor in plastic medical products, whose mechanism is consisted of fewer parts and an easier manufacturing method.

Description

[0001] STRUCTURING OF A LIQUID FLOW CONTROLLER CONSISTING OF TWO PARTS

[0002] Technological Field:

[0003] The invention relates to a liquid flow adjustor structuring known as the fluid speed adjustor in plastic medical products, whose mechanism is formed with fewer parts and an easier manufacturing method.

[0004] The State of Art:

[0005] The drop adjustment set that allows adjusting the amount of fluid passing through the hoses when administering serum, blood or other liquid nutrients used in the medical sector to living things has been used for a long time. The amount of liquid passing through the hose can be sensitively adjusted. Drop adjustment sets used today differ in terms of production features and working principles.

[0006] One of the most undesirable features of such products is that they have a complex production method. Because it is very important to produce these products, which have a very short lifespan and high circulation, with an easier and shorter manufacturing method. On the other hand, another important feature is that it has a design that allows the user to make sensitive adjustments during use. In addition, for the safety of these products, the fact that the sensitive adjustment of flow controller set can be easily changed by the patient / patient's relative / child and this is noticed late by the officers poses a big problem. The above-mentioned disadvantages are present in the patent application numbered EP1415675 "adjusting valve", which was encountered in the literature research. Since it consists of many parts, it also brings risks during its assembly.

[0007] In the patent numbered JPS61247470, which was encountered in the literature research, there was a need to use an additional "seal ring” for sealing. This increases both the cost and the time spent on assembly. Sealing rings deform over time and makes the product to become unusable.

[0008] In the PCT application numbered WO2019117835A2, in the literature research, it is described " a liquid inlet line, a liquid outlet line, a fluid transition part having a cylindrical body with one end open and the other end closed, positioned between the mentioned lines, a liquid flow adjustor that allows the user to intervene in the speed of the fluid by contact, has a flow rate male cylinder, and includes a flow rate adjustment part, which can be mounted on the fluid transition part by passing the flow rate male cylinder to the cylindrical body”.

[0009] As a result, there is a need for a new liquid flow adjustor that overcomes the state of the art and eliminates its disadvantages.

[0010] Brief Description of the Invention:

[0011] The invention is a liquid flow adjustor that overcomes the known state of the art, eliminates its disadvantages, and comprises additional advantages.

[0012] The object of the invention is to provide a more economical production process with fewer production risks by forming said liquid flow adjustor from only two parts without an additional seal ring.

[0013] Another object of the invention is to provide a liquid flow adjustor that is a drop adjustment set suitable for production in a single operation. Another object of the invention is to minimize the risk of fluid leaking out of the mechanism in the liquid flow adjustor.

[0014] Another object of the invention is to facilitate the sensitive adjustment of the liquid flow adjustor for the user.

[0015] Description of Drawings:

[0016] The invention will be described with reference to the attached drawings, so that the characteristics of the invention will be understood more clearly. However, this is not intended to limit the invention to these particular embodiments. On the contrary, it is intended to involve all alternatives, modifications and equivalents that can be included within the scope of the invention as defined by the attached claims. It should be understood that the details shown are only for illustrating preferred embodiments of the present invention and are intended to provide the most useful and easily understandable description of both the embodiment of the methods and the rules and conceptual characteristics of the invention. In these drawings:

[0017] Figure - 1 A perspective view of the mounted liquid flow adjustor, which is subject of the invention.

[0018] Figure - 2A An upper perspective view of the flow rate adjustor, which is subject of the invention.

[0019] Figure - 2B A bottom perspective view of the flow rate adjustor.

[0020] Figure - 3 A section view of the flow rate adjustor.

[0021] Figure - 4A An upper view of the flow rate adjustment part.

[0022] Figure - 4B A perspective view of the flow rate adjustment part.

[0023] Figure - 5A A section view showing the closed position of the flow rate adjustment part.

[0024] Figure - 5B A section view showing the open position of the flow rate adjustment part. Figure - 5C A section view showing the half-open position of the flow rate adjustment part.

[0025] Figure - 6A A side view of the flow channel on the flow rate adjustment part.

[0026] Figure - 6B An upper view of the flow channel on the flow rate adjustment part.

[0027] The drawings assisting understanding of this invention are numbered as indicated in the attached drawings and are given below with their names.

[0028] Description of References:

[0029] 1. Flow rate adjustor

[0030] 2. Flow rate adjustment part

[0031] 2.1 Flow rate male cylinder

[0032] 3. Fluid transition part

[0033] 4. Cylindrical body

[0034] 4.1 Bump

[0035] 5. Inlet line

[0036] 6. Outlet line

[0037] 7. Cylindrical table

[0038] 8. Longitudinal beam

[0039] 9. Transversal beam

[0040] 10. Assembly channel

[0041] 11. Sealing surface

[0042] 12. Inner stage

[0043] 13. Liquid chamber

[0044] 14. Strength set 15. Regional set

[0045] 16. Circular point

[0046] 17. Contact perimeter

[0047] 18. Male cylinder outer stage

[0048] 19. Male cylindrical body cordon

[0049] 20. Male cylinder upper stage

[0050] 21. Flow channel

[0051] 22. Liquid transfer channel

[0052] 23. Pin

[0053] 24. Observation slot

[0054] 25. Arrow

[0055] Description of the Invention:

[0056] In the detailed description of the invention, the flow rate adjustor (1) mechanism is mentioned, which regulates the flow amount and speed within the hose by mounting it on the flow line of the hoses used for blood, serum or liquid feeding purposes in the medical sector.

[0057] The invention is a flow rate adjustor (1 ) mechanism that is mounted on the hoses used in the medical sector to supplement blood, serum or liquid food to the patient and provides control of the speed of the fluid, comprising a liquid inlet line (5), a liquid outlet line (6), a fluid transition part (3) having a cylindrical body (4) with one end open and the other end closed, positioned between said lines, a flow rate adjustment part (2), which has a flow rate male cylinder (2.1 ) that allows the user to intervene in the speed of the fluid by contacting it, and which can be mounted on the fluid transition part by passing the flow rate male cylinder (2.1 ) to the cylindrical body (4), a conical male cylinder outer stage (18) located on the flow rate male cylinder (2.1 ) used to ensure sealing during the connection of said flow rate adjustment part (2) to the fluid transition part (3), at least one assembly channel (10) connecting the flow rate adjustment part (2) and the fluid transition part (3), a male cylindrical body cordon (19) having a form compatible with an inner channel located in the mounting channel (10) on said male cylinder outer stage (18) and an internal channel that is exactly compatible with the cylindrical body cordon (19) on the outer stage (18) in the cylindrical body of the flow rate male cylinder (2.1 ) in said assembly channel (10), characterized in that, it comprises the following:

[0058] • a bump (4.1 ) in a concave form, which functions as a joint to form ease of use by reducing the friction between the cylindrical body (4) and the flow rate adjustment part (2), on the upper side of the closed end of said cylindrical body (4).

[0059] The most important difference and advantage of the flow rate adjustor (1) mechanism compared to the mechanisms in the previous technique is that it consists of two main parts, as can be seen in Figure 1 . The first of these two parts is the flow rate adjustment part (2), which is controlled by contact with the hand of the user, and the second is the fluid transition part (3), which has an inlet line (5) and outlet line (6) in cylindrical form designed to allow fluid to pass through it.

[0060] The fluid transition part (3) has a hollow cylindrical body (4) and inlet line (5) and outlet line (6) housings connected to this cylindrical body (4) and a discshaped cylindrical table (7). The cylindrical inlet line (5) and outlet line (6) housings enable the flow hoses to be connected to the flow line of the flow rate adjustor (1). The inlet line (5) and outlet line (6) housings are connected to the cylindrical body (4) and the disc-shaped cylindrical table (7) with the longitudinal beam (8) and transverse beam (9) for strengthening purposes. The mentioned longitudinal beam (8) and transverse beam (9) also serve as force arms that provide ease of holding during rotation.

[0061] The inlet line (5) and outlet line (6) housings are not aligned along the axis of the cylindrical body (4) and are at different levels. This situation can be seen clearly in Figure 3. As can be seen in Figure 2A and Figure 2B, the upper side of the cylindrical body (4) is closed, and the other end is open for the assembly of the flow rate adjustment part (2). There is an assembly channel (10) all around the side close to the open end. In the invention, the assembly channel

[0062] (10) is formed with a special molding technique. In this way, it has been observed that the assembly channel (10) accelerates product assembly compared to designs comprising open-ended tabs. In addition, the assembly channel (10) provides the necessary axiality for sealing. In this way, there is no need for gaskets, o-rings or similar elements to provide sealing. Said assembly channel (10) is produced in the injection mold to include an internal channel that is exactly compatible with the cylindrical body cordon (19) on the outer stage (18) in the cylindrical body of the flow rate male cylinder (2.1 ) located in the flow rate adjustment part (2). This situation can be seen in figure 5A. The cylindrical body cordon (19) and the assembly channel (10) provide sealing with their compatible design and there is no need for any o-rings or gaskets.

[0063] In the invention, the inside of the cylindrical body (4) has a sealing surface (11) that will provide sealing and an internal stage (12) that limits this sealing surface

[0064] (11 ) to provide ease of rotation. After the assembly of the flow rate adjustment part (2) with the fluid transition part (3), the stability of the flow is increased by forming a stepless, closed liquid reservoir (13) with maximum volume on the upper side of the closed end of the cylindrical body (4). In addition, ease of use is formed by reducing the friction between the cylindrical body (4) and the flow rate adjustment part (2) by forming a bump (4.1 ) in a concave form on the upper side of the closed end of the cylindrical body (4). Additionally, in the invention, the cylindrical body (4) is produced with a minimum of 3% Erucamide slip additive and / or medically compatible silicone lubricant in the material formulation, instead of standard plastic materials, and thus, with high surface lubricity, the friction force decreases to the force equivalent to the operating condition with oil addition. This allows the user to make adjustments in the fastest and most sensitive way.

[0065] There is a strength set (14) all around the axis on the surface of the discshaped cylindrical table (7), located on the open mouth side of the fluid transition part (3), on the opposite side compared to the cylindrical body (4). The strength set (14) provides strength to the disc-shaped cylindrical table (7). The strength set (14) has a regional set (15) extending onto the surface of the discshaped cylindrical table (7). A scale showing the adjusted flow amount is printed on the surface of the disc-shaped cylindrical table (7) where the strength set (14) is located. Three circular points (16) are formed on the surface of the strength set (14) to adjust the printing of the scale in the correct position.

[0066] The part of flow rate adjustment part (2) that is grasped by the user is called the contact wall (17). The contact wall (17) is bowl-shaped and designed with a concave, break-free form that will not retain particles and will enable easy cleaning. This single-surface, break-free form increases the user's comfort of use. The break-free form means a design that does not contain any sharp areas or junction lines. In addition, the contact wall (17) has the feature of locking in the adjusted position and provides safe use by means of the unlocking process with the assembly channel (10) by the operator. As seen in Figure 4B, the flow rate male cylinder (2.1) extends from the rear surface of the base of the contact wall (17). A part of the flow rate male cylinder (2.1 ) consists of the cylindrical body outer stage (18). A male cylindrical body cordon (19) with a semicircular section is located all around the part of the male cylindrical outer stage (18) near the base of the contact wall (17). Said male cylindrical body cordon (19) is produced in the injection mold compatible with an internal channel located in the assembly channel (10), thus it both accelerates product assembly and provides sealing.

[0067] In the invention, there is a male cylindrical upper stage (20) with a smaller diameter at the other end of the male cylindrical outer stage (18). In this stage, the stability of the flow is increased by forming a closed liquid reservoir with maximum volume. In the part of the male cylindrical outer stage (18) close to the male cylindrical upper stage (20) with small diameter, there is a flow channel (21 ) with variable cross section extending over a certain region of the periphery. This flow channel (21 ) is connected to the male cylinder upper stage (20) with small diameter through another liquid transfer channel (22) extending along the axis on the surface.

[0068] There is a pin (23) located in an area close to the outer edge of the base of the contact wall (17) of the flow rate adjustment part (2). As can be seen in Figure 4A, the contact wall (17) is not a completely continuous circle, but has a discharge in the form of a circle cut to form a observation slot (24). There is an arrow (25) at the bottom of the observation slot (24). This arrow (25) shows the flow value adjusted on the scale printed on the surface of the disc-shaped cylindrical table (7) of the fluid transition part (3). On the upper surface of the flow rate adjustment part (2), opposite the arrow (25), there are "+" and signs indicating the direction to the user and a directional arrow in the middle. There is a central “o” sign just above them. There is also a raised ml / h sign in the plus direction of the arrow (25) that shows the user the unit of flow rate.

[0069] The base of the contact wall (17) of the flow rate adjustment part (2) has a raised edge towards the opposite direction of the cylindrical body outer stage (18). This edge forms a holding surface. The raised edge continues to descend towards the base along the edges of the observation slot (24). The male cylindrical body cordon (19) on the male cylindrical outer stage (18) is pushed until it fits into the circular assembly channel (10) all around near the open end of the cylindrical body (4) by placing the male cylindrical outer stage (18) of the flow rate adjustment part (2) into the cylindrical body (4) of the fluid transition part (3). The male cylindrical body cordon (19) and the assembly channel (10) stretch into each other and ensure that the fluid adjustment part (2) and the fluid transition part (3) are locked together.

[0070] In Figures 5A, 5B and 5C, the assembled sectional views of the fluid transition part (3) and the flow rate adjustment part (2) are seen. The liquid reservoir (13) located between the cylindrical body (4) of the fluid transition part (3) and the male cylindrical upper stage (20) with small diameter of the flow rate adjustment part (2), regardless of the position of the flow rate adjustment part (2), is always connected to the inlet line (5). This means that the liquid chamber is always filled with liquid. The liquid in the liquid chamber (13) passes to the variable section flow channel (21 ) through the liquid transfer channel (22) extending along the axis on the surface of the male cylindrical outer stage (18) of the flow rate adjustment part (2). In the invention, the edges of the liquid transfer channel (22) shown in Figure 4B are ovalized and the continuity of its connection with the flow channel (21) is provided. In this way, ease of passage of the fluid transfer channel (22) is provided. In this way, fluid transfer of 2 ml / min or less can be achieved. The variable section flow channel (21) is aligned with the outlet line (6). The variable section flow channel (21 ) is aligned with the outlet line (6). Whichever section of the flow channel (21 ) is aligned with the outlet line (6), a flow value is adjusted depending on this section. In other words, if it is aligned with the wide section, the flow rate increases, and if it is aligned with the narrow section, the flow rate decreases. This section change is achieved by the user's rotating movement on the flow rate adjustment part (2).

[0071] The section of the flow channel (21) can be changed by changing the channel depth and height. The flow channel (21) is generally designed as shallow and with high height. In this way, the flow channel (21 ) can be removed from the mold in the injection production method and additional operations to open the channel are prevented. It will not be possible for a deep channel to come out of the injection mold. The channel section is changed substantially by reducing the height. At the smallest adjustment values, the depth of the flow channel (21) is also reduced and thus a wide adjustment range is obtained. The fact that the flow rate adjustor (1 ) consists of only two parts and the flow channel (21 ) is obtained in a single operation provides both economical and sensitive production.

[0072] The flow rate adjustor (1) completely cuts off the flow on one side of the adjustment range and is completely open on the other side. In the position where the flow is completely open, the liquid transfer channel (22) extending along the axis is in line with the outlet line (6) and the liquid in the liquid reservoir (13) is transmitted directly out. As can be seen in Figures 6A and 6B, the flow channel (21 ) is not all-round, but extends along a certain part of the cylindrical body outer stage (18) of the flow rate adjustment part (2). The section of the flow channel (21 ) is the largest where it intersects with the liquid transfer channel (22), and as it progresses along the perimeter, it becomes smaller and the section drops to zero before completing the full circumference. When the region where the section drops to zero reaches the level of the outlet line (6), the flow is completely cut off. The movement of the flow rate adjustment part (2) is ensured to remain between these two limits by means of the coincidence of the pin (23) with the regional set (15) extending onto the surface of the cylindrical table (7).

Claims

CLAIMS1. The invention is a flow rate adjustor (1 ) mechanism, comprising a liquid inlet line (5), which is mounted on the hoses used in the medical sector to supplement blood, serum or liquid food to the patient and provides control of the speed of the fluid, a liquid outlet line (6), a fluid transition part (3) having a cylindrical body (4) with one end open and the other end closed, positioned between said lines, a flow rate adjustment part (2), which has a flow rate male cylinder (2.1 ) that allows the user to intervene in the speed of the fluid by contacting it, and which can be mounted on the fluid transition part by passing the flow rate male cylinder (2.1 ) to the cylindrical body (4), a conical male cylinder outer stage (18) located on the flow rate male cylinder (2.1) used to ensure sealing during the connection of said flow rate adjustment part (2) to the fluid transition part (3), at least one assembly channel (10) connecting the flow rate adjustment part (2) and the fluid transition part (3), a male cylindrical body cordon (19) having a form compatible with an inner channel located in the mounting channel (10) on said male cylinder outer stage (18) and an internal channel that is exactly compatible with the cylindrical body cordon (19) on the outer stage (18) in the cylindrical body of the flow rate male cylinder (2.1 ) in said assembly channel (10), characterized in that, it comprises the following:• a bump (4.1 ) in a concave form, which functions as a joint to form ease of use by reducing the friction between the cylindrical body (4) and the flow rate adjustment part (2), on the upper side of the closed end of said cylindrical body (4).

2. A flow rate adjustor (1 ) according to claim 1 , wherein; the cylindrical body (4) comprises Erucamide slip additive and / or medically compatible silicone lubricant additive in its raw material to increase lubricity s-and reduce friction force.

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