• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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    • 专利摘要:
    NEEDLE-FREE ACCESS CONNECTOR WITH POSITIVE DISPLACEMENT AND METHOD FOR FITTING A NEEDLE-FREE ACCESS CONNECTOR. Features a needle-free access connector with positive displacement that includes a housing with a female Luer coupling, a base with a male Luer coupling, and a valve element with a proximal end that creates a seal in the housing, a septum, and an end distal fixing the base to the ventilation of the septum, the base and the valve element coupling to each other to create a set that has a larger outer diameter that is less than an inner diameter of the housing.
    公开号:BR112012022980B1
    申请号:R112012022980-0
    申请日:2011-03-10
    公开日:2021-01-19
    发明作者:George M. Mansour
    申请人:Carefusion 303, Inc；
    IPC主号:
    专利说明:

    APPLICATION FIELD
    [0001] The present patent application relates to a needle-free access connector and, more particularly, to needle-free access connectors with positive displacement. TECHNICAL STATUS
    [0002] Modern medical treatment often requires medical professionals to introduce fluids into a patient or withdraw fluids from a patient. For example, a patient may need treatment that requires a medical professional to draw urine or blood from the urethra or a vein, respectively. Conversely, the medical professional may need to introduce drugs or nutrients into the patient's vein (ie, intravenously). To create a route for fluid flow into or from the patient, a method requires the medical professional to use a catheter where one end of the catheter is inserted into the patient. On the other hand, the catheter connects to an IV bag (IV bag), through an IV segment. Needle-free connectors employ valves that allow a medical professional to remove and add devices (for example, IV bags) to the catheter without the use of a needle. An example of a needleless access connector is shown in FIGURES 1A and 1B.
    [0003] Figure 1A illustrates a sectional view of a current needle-free access connector 100. The needle-free access connector 100 includes a housing 120, which has a female Luer latch 101 at the proximal end, a base 130, which has a male Luer coupling 102 at the distal end, and a valve element 103, which is seated inside the housing 120 and at the top of the base 130. The housing 120 and the base 130 are made of a rigid plastic, usually polycarbonate, and the valve element 103 is made of liquid silicone so that it is elastic and deformable. When in use, the male Luer coupling 102 is connected to, for example, a catheter or female Luer coupling; and the female Luer coupling 101 is connected to the fluid reservoir, for example, an IV pouch or a male Luer. The female Luer coupling 101 is connected to the fluid reservoir via a second male Luer coupling 106, which has a hollow member (as shown in FIGURE 1B) and is inserted through the top of the female Luer coupling 101. The insertion of the male Luer coupling 106 deforms valve element 103 in volume 104 to break the seal and create a fluid flow path. FIGURE 1B illustrates the deformed valve element 103 in the deformed position after insertion of the male Luer coupling 106 into the female Luer coupling 101. The male Luer coupling 106 releases fluid, for example, from an IV bag, which flows in around the valve element 103 within channels in the male Luer coupling 102 and within the catheter or female Luer coupling.
    [0004] Inside the valve element 103 there is a gap (or septum, not shown), which is filled with air. The needle-free access connector 100 is a positive displacement device, so that when a new connection is made to the female Luer coupling 101, the device 100 pulls the fluid from the male side of the valve (i.e. the male Luer coupling 102 on the proximal side). When a disconnection is made on the female Luer coupling 101, the device 100 pushes the fluid from the female side (i.e., the proximal side of the top of the female Luer coupling 101). The advantage of positive displacement is that when a disconnection is made, the device 100 expels the fluid out of the male Luer coupling 102, and effectively levels the catheter. In contrast, some devices on the market today have negative displacement, so that when a male Luer coupling (for example, male Luer 106) is disconnected, such devices pull a small amount of liquid from the side of the male Luer 102. When the liquid is pulled from the male Luer 102 side of a catheter that is attached to a patient’s vein, blood can be pulled into the catheter cavity, and if this blood is left in the catheter cavity, it can clot and cause health problems in the patient. Positive displacement connectors prevent this problem by pushing fluid out when a male Luer (for example, male Luer 106) is disconnected from the needle-free connector and its deformable valve moves from its deformable state to its non-deformable state. Purifying the fluid from the positive displacement connectors helps to prevent blood from entering the tip of the catheter, thereby preventing it from contaminating / coagulating and, consequently, causing infections in the bloodstream.
    [0005] In operation, when the female end of the needleless access connector 100 is accessed by a male Luer (Figure 1B), valve element 103 is sufficiently elastic so that it can be bent in the path to allow flow and then return to its original shape after a disconnection has been made at the female end. Thus, the needle-free access connector 100 reseals itself and forms a flat surface that can be disinfected on top of surface 110 using an alcohol swab.
    [0006] Before the needle-free access connector 100 is used to connect a device to, for example, a catheter, the needle-free access connector 100 will contain some air. This air is removed before using the needleless access connector 100 with a catheter, as otherwise it can be pumped into the patient causing damage to the patient. Normally, to remove this air, the medical professional inverts the needle-free access connector and attaches a syringe containing saline to the needle-free access connector. The saline is then pushed through the needle-free connector, thereby expelling air from the connector. (This process is known as prime, and the minimum volume of liquid required to remove all air from the needle-free connector is known as the priming volume). Some medical professionals prefer needle-less access connectors with smaller prime volumes to reduce the delay in drug release.
    [0007] After a needle-free access connector is prepared, the medical professional normally connects the end of the male 102 to a catheter (not shown). The medical professional connects a male Luer from the IV pouch (not shown) to a needle-free access connector. For example, a medical professional would connect the end of the syringe 106 to the female Luer coupling 101, as illustrated in Figure 1B.
    [0008] It can be seen that the needle-free access connector 100 contains the shapes of the housing 120, the base 130, and the valve element 103. The valve element 103 has a flange 105, which is a part with a larger outside diameter than that of the valve element 103 body. Housing 120 has a bulkhead 107, which adapts to flange 105. When assembled, flange 105 is held securely between base 130 and bulkhead 107, thereby creating a seal between the flange 105 and the base 130. The reason for the seal to be such is so that the air in the septum can be vented out without the air being able to go into the fluid flow path from the Luer male 106 to male Luer 102. Although not shown here, there are two ventilation holes in the direction of the “y” axis that extend from the threaded part of the base 130 to the septum of the valve element 103, which allow the air comes out and enters the septum, as valve element 103 is compressed and decompressed without mixing with the fluid. Once assembled, housing 120 and base 130 are joined at interface 115.
    [0009] Flange 105 increases the overall width of valve element 103, and connector 100 allows fluid to flow around flange 105, thereby making connector 100 itself wide. As a result, connector 100 may appear large when compared to a catheter (not shown), and especially when connector 100 is placed against the skin of a newborn. The common use of connector 100 is to attach the catheter to a patient's skin near the point where the catheter engages connector 100. However, the wide shape of connector 100 can induce connector 100 to fit snugly against the skin. In addition, the width of the connector 100 can make a larger priming volume. SUMMARY OF THE INVENTION
    [0010] Various applications include a connector with a valve element that connects to the base. For example, in an application, an example valve element is embedded with the base where the two components fit together. In another example, the base and the valve element are coupled together to create a set that has a larger outside diameter that is less than an inside diameter of the housing.
    [0011] Various applications minimize or eliminate the flange so that the width profile of the valve element, and the connector as a whole, can be reduced when compared to the previous solutions illustrated in FIGURES 1A and 1B. Examples of techniques for removing the flange and fixing the valve element to the base include the use of a pressure fitting that engages the valve element to the base, although other applications may use other techniques. Additional applications include methods for making a connector.
    [0012] The aforementioned has broadly described the advantageous features and techniques of the present patent application, so that the detailed description of the present patent application below can be better understood. The additional features and advantages of the present application for a patent will be better described below, which form the subject of the claims of the present application for a patent. It should be appreciated by those with experience in the art that the concept and the specific applications described can easily be used as a basis for modifying or designating other structures to accomplish the same purposes as the present application for a patent. It should also be noted by those with experience in the art that said equivalent constructions do not deviate from the essence and scope of the present application for an invention patent, as represented in the appended claims. The new aspects that are believed to be characteristic of the present invention patent application, both with their organization and method of operation, together with the additional objectives and advantages, will be better understood from the following description, when considered in connection with the figures accompanying the present invention patent application. It should be expressly understood, however, that each of the figures is provided for illustrative and descriptive purposes only, and is not intended to limit the present invention patent application. DESCRIPTION OF THE FIGURES
    [0013] For a more complete understanding of the present application for a patent, reference is now made to the following descriptions, taken in conjunction with the drawings accompanying the present application for a patent, in which: Figure 1A is a view in cutting a current needle-free access connector. FIGURE 1B illustrates a deformable valve element in the deformed position after insertion of a male Luer into a female Luer; Figures 2A and 2B provide an expanded view of an exemplary positive displacement needle-free access connector, adapted according to an application of the present patent application; Figures 3A and 3B provide an expanded view of an exemplary positive displacement needle-free connector, adapted in accordance with an application of the present patent application; Figure 4 is an illustrative view of an exemplary connector in use, in accordance with an application of the present patent application; Figure 5 is a cross-sectional view of the exemplary connector, adapted according to an application, which was rotated 90 degrees from the cross section of FIGURES 2A, 2B and 3A and 3B; Figure 6 is an illustration of the exemplary connector, assembled and ready for use, according to an application of the present application for an invention patent; Figure 7 is an illustration of a connector, adapted in accordance with an application of the present application for a patent; and Figure 8 is an illustration of an exemplary method for manufacturing a needle-free access connector with positive displacement, in accordance with an application of the present patent application. DETAILED DESCRIPTION
    [0014] Figures 2A and 2B provide an expanded illustration of an example of a needle-less access connector with positive displacement 200, adapted according to an application of the present patent application. FIGURE 2A is a sectional view, while Figure 2B illustrates the exterior of connector 200.
    [0015] The connector 200 has three basic parts, the base 210, the valve element 220 and a housing 230. The housing 230 has a female Luer coupling 231 at the proximal end, which connects, for example, to a fluid reservoir, such as an IV bag. The base 210 and threaded threads 232 form a male Luer coupling at the distal end of connector 200, the male Luer coupling connects, for example, to a catheter that is in contact with a patient. The valve element 220 includes the septum 221, which is filled with air and ventilates the atmosphere when it is compressed and decompressed, as explained in greater detail below.
    [0016] Figures 3A and 3B provide an expanded illustration of an example of a needle-free access connector with positive displacement 200, adapted according to an application of the present patent application. FIGURE 3A is a sectional view, while Figure 3B illustrates the exterior of the connector 200, and both FIGURES 3A and 3B illustrate the base 210 attached to the valve element 220.
    [0017] The base 210 and the valve element 220 are coupled to each other using, in that application, a male / female interlock coupling 250, referred to here for convenience as a pressure fitting. The top of the valve element, which is the female part of the pressure fitting 250, is made small enough so that it has a tight seal compression on the corresponding part of the base 210, which forms the male part of the pressure fitting 250. In many applications, the seal in the pressure fitting 250 is impermeable, at least at normal operating temperatures and pressures, in order to keep the air separate from the fluid in connector 200. During manufacture, base 210 and valve element 220 they can be fully fixed, forcing them together, either by hand or by machine. In some applications, about a pound of force is enough to make the connection, and about two pounds is enough to break the connection, although several applications may differ.
    [0018] Although FIGURES 3A and 3B illustrate a pressure fitting 250, the scope of applications is not limited. For example, other applications may employ different types of fastening couplings, such as threaded assemblies or other couplings.
    [0019] In the exemplary application of Figures 3A and 3B, the external surfaces of the base 210 and the valve element 220 are connected in the pressure fitting 250. For "real" devices, it should be understood that the external surfaces of the valve element 220 and base 210 are rarely linked exactly, but a certain tolerance (for example, about 2%) is acceptable in some applications. Thus, connector 200 replaces the flange of conventional positive displacement devices (for example, flange 105 of Figure 1A), with the pressure fitting 250 and the flat outer surface illustrated in FIGURES 3A and 3B. The shape of the valve element 220, therefore, has a limited profile, and can be used in connectors of limited profile.
    [0020] The base 210 and the valve element 220 attach to each other to form a set that is placed inside the housing 230. The connector 200 uses a "v-shaped" coupling to couple the base 210 to the housing 230. Complementary surfaces 211 and 233 are basically “v” shaped, but have a slight curvature and are fixed to keep base 210 in place when base 210 is inserted into housing 230. While base 210 is inserted, complementary surfaces 211 and 233 correct themselves for the alignment of the base 210 with respect to the housing 230, acting as a cam. Thus, if the number of degrees out of alignment is inserted arbitrarily to the base 210, the complementary surfaces 211 and 233 (once in contact) put the base 210 in place. As a result, the base 210 sits precisely, and after the fusion is made, the air ventilation 212 will be able to ventilate the atmosphere while the distal flow channels 213 are connected to the male Luer at the outlet of the base 210.
    [0021] The distal flow channels 213 and the air vents 212 are perpendicular to each other in this application. Thus, one of the two ventilations 212 is shown in FIGURE 3B, while the distal flow channels 213 are illustrated in the cross section of FIGURE 3A. Flow and ventilation are shown in more detail in Figure 4.
    [0022] Figure 4 is an illustrative view of an example of connector 200 in use, according to an application. In Figure 4, the fluid is being transferred from the male Luer connector 410, which is engaged with the female Luer coupling 231, through the housing 230, through the male Luer outlet of the base 210 and inside the female Luer coupling 401. As an example, it may include the transfer of fluid from an IV pouch (not shown) into the patient's bloodstream. Although FIGURE 4 represents the flow of a patient, it should be understood that various applications of the present patent application also facilitate the flow of fluid from the patient.
    [0023] When there is no connection on the female Luer coupling 231, the valve element 230 creates a seal on the proximal end of the female Luer coupling 231, as well as on the bulkheads 234. Said seal prevents the flow of fluid through the connector 200 when not is in use. In addition, the seal at the proximal end of the latch 231 creates a soundproofing surface that can be cleaned. The seal at the proximal end of the female Luer coupling 231 and the bulkhead 234 are illustrated in FIGURE 5.
    [0024] During use, the male Luer coupling 401 deforms the valve element 220 and breaks the seal on the bulkhead 234 and the proximal end of the coupling 231. The fluid is then free to stay around the valve element 230 and through the housing 230 via proximal flow channels 403, which are formed within the inner surface of housing 230. The merging of surfaces 211 and 233 interrupts the fluid so that flow flows around the “v” shape and within the distal flow channels 213, where the fluid is directed outwardly through the male Luer outlet of the base 210. The air from the septum 221 is vented into the atmosphere through the air vent 212 and inside the threaded chamber 404, which is part of the male Luer coupling formed the base 210 and the housing 230. The air passage is defined by means of the ventilation 212 and the internal surface of the housing 230, and the merging of the surfaces 211 and 233 creates a seal that keeps the air flow separate from the fluid flow. The threaded chamber 404 is not waterproof, even when engaged with the female coupling 402, thereby allowing the septum 221 to contact the ambient atmosphere while the valve element 220 is compressed, as shown in FIGURE 4, or decompressed .
    [0025] Figure 5 is a cross-sectional view of an example of connector 200, adapted according to an application of the present patent application, which is rotated 90 degrees from the cross sections of Figures 2A, bands 3A and 3B. It is observed in FIGURE 5 the passage of air from the septum 221 to the atmosphere. The air passage includes a single vent 501, formed at the base 210, and vents 212. The single vent 501 and the vents 212 form an air passage substantially in the "Y" shape. This is contrary to the previous drawings (not shown) which include two or more separate ventilations, formed in the direction of the “y” axis (“axially”), directly connecting the atmosphere to the septum.
    [0026] During conventional manufacturing techniques, an injection molding technique is used, and the two or more separate vents are created using long thin pins inserted into the mold cavity when the material is hot. When the mold is opened, the long thin pins are removed to form two or more separate vents. However, long, thin pins have a tendency to break during use. The general rule is that shorter, thinner pins last longer.
    [0027] On the contrary, the base 210 has short and relatively wide ventilations 212 that can be formed by metal parts of corresponding shape in the mold. The air passage has a triangular widening in each ventilation 212 from the central axis to the outer surface of the base 210. The corresponding shaped metal parts (not shown) are thick and shorter than the thin and long pins of conventional techniques and are therefore less prone to breakage. The single channel 501 is made relatively wide, and is placed in the part of the base 210 that corresponds to the male part of the pressure fitting 250. Furthermore, since a single channel 501 does not have to cross the total length of the septum 221 for the threaded chamber 404, it avoids limiting the flow path of the fluid. Consequently, the single channel 501 is not made with a long thin pin either.
    [0028] Figure 6 illustrates an example of connector 200, assembled and ready for use, according to an application of the present application for an invention patent. Housing 230 may be made of material including polycarbonate, polystyrene and styrene of acrylonitrile butadiene. The housing 230 includes a female Luer coupling, which, in some applications, meets the ISO 594 standard. Similarly, the male Luer configurations at the distal end of the housing 230 and formed with base 210, in some applications, meets the ISO 594 standard The valve element 220 is arranged inside the housing 230 and can be made of plastic material such as silicone rubber, which is deformable and biocompatible.
    [0029] Figure 7 represents an illustration of an example of connector 700, adapted according to an application. The connector 700 is similar to the connector 200 (for example, FIGURES 2 to 6), but uses a slot and a fixing key to fit the housing 730 to the base 710, instead of the “v” shaped coupling featured in the connector 200. In a slot and key configuration, the base 710 has a protrusion (key) that is sized to fit into a slot on the inner surface of housing 730 (or vice versa). During manufacture, base 710 and valve element 220 are inserted into housing 730 and returning until the slot engages with the key. The base 710 and the housing 730 are then merged. The scope of applications is not limited to a slot and a fixing key or a “v” shaped hitch, as any of a variety of techniques for fitting the base and housing can be used in a variety of applications .
    [0030] Figure 8 represents an example of method 800 for manufacturing a connector without a positive displacement needle, according to an application. Method 800 can be carried out, for example, using a human and / or one or more machines.
    [0031] In block 801, a distal end of the valve element is attached to a proximal end of the base. The attachment creates a seal between the valve element and the septum separation base from a flow path between the first and second Luer couplings. Block 801 creates an assembly, such as that shown in FIGURE 3A, which includes a valve element and a base, coupled to each other. In one example, the valve element and the base are coupled using a pressure fitting, although other fastening techniques can be used in other applications.
    [0032] In block 802, the valve element and the base are arranged inside the housing. For example, a “v” shaped coupling can be used, such as that shown in FIGURES 3A and 3B, which self-aligns the base and the housing, although other fittings, such as a key and slot, can be used. used When the valve and base are arranged within the housing, the proximal end of the valve element creates one or more seals at the proximal end of the housing.
    [0033] In block 803, the base and the housing are permanently fixed. Various techniques can be used in block 803, such as ultrasonic welding, adhesive application, and the like. In this example, the base and housing fit tightly, so that a seal is created to separate the air vent port from the fluid flow path after the base and housing are permanently attached. Several applications are not limited to the process shown in FIGURE 8, as various actions can be added, omitted, rearranged or modified.
    [0034] Some applications may have one or more advantages over the prior art solutions. In one aspect, removing the flange of FIGURES 1A and 1B decreases the size of the valve element and, subsequently, the connector as a whole. A connector with a smaller volume is generally expected to have a lower priming volume, as well, which can reduce fluid and waste and can be more visually interesting for healthcare professionals. In addition, some applications have a reduced overall width, which is generally more comfortable for a patient when the catheter is attached to the skin near the connector.
    [0035] Although the present application for an invention patent and its advantages have been described in detail, it should be understood that various changes, substitutions and changes can be made here without departing from the scope of the present application for an invention patent, as defined by attached claims. In addition, the scope of the present patent application is not intended to be limited to the particular applications of the process, machine, fabrication, material composition, means, methods and steps described in the specification. As a person with experience in the technique will easily appreciate, from the description of the present patent application, the processes, machines, fabrications, material compositions, means, methods, or steps, currently existing or later must be developed to perform substantially the same functions or achieve substantially the same results from the corresponding applications described here can be used in accordance with the present application for an invention patent. Consequently, the appended claims are intended to include within its scope, said processes, machines, fabrications, compositions of matter, means, methods or stages.
    [0036] All elements, parts and steps described here are included by preference. It should be understood that these elements, parts and steps can be replaced by other elements, parts and steps or completely removed, as will be obvious to professionals with experience in the technique.
    [0037] Broadly, this document describes a needle-free access connector with positive displacement including a housing with a female Luer coupling, a base with a male Luer coupling, and a valve element with a proximal end that creates a seal on the housing, a septum, and a distal end that connects the base to the ventilation of the septum; the base and the valve element couple to each other to create an assembly that has a larger outer diameter that is less than an inner diameter of the housing. CONCEPTS
    [0038] This document discloses at least the following concepts:
    [0039] Concept 1: Needle-free connector with positive displacement, comprising: a housing with a female Luer adapter; a base with a male Luer adapter; and a valve element with a proximal end that creates a seal in the housing, a septum, and a distal end that fixes the base to ventilate the septum, the base and the valve element coupling to each other to create a set that has a larger outer diameter that is less than an inner diameter of the housing.
    [0040] Concept 2: Needleless access connector with positive displacement of concept 1, in which the distal end of the valve element is fixed to the base using a closing mechanism.
    [0041] Concept 3: Needle-free connector with positive displacement of concept 1, in which housing is coupled to the base using a “v” shaped adapter.
    [0042] Concept 4: Needle-free connector with positive displacement of concept 1, in which the housing is coupled to the base using a key and a fixing slot.
    [0043] Concept 5: Needle-free connector with positive displacement of concept 1, comprising a “Y” shaped ventilation port from the septum to a distal end of the base.
    [0044] Concept 6: Needle-free connector with positive displacement of Concept 5, in which the “Y” shaped ventilation port includes branches in triangular shapes.
    [0045] Concept 7: Needle-free connector with positive displacement, comprising: a housing that has a first Luer coupling at a proximal end of it; a base that has a second Luer latch at a distal end thereof; and a valve element with a close end which creates a seal on the first Luer coupling and fixes the base so that a surface of the valve element is substantially connected with a surface of the base.
    [0046] Concept 8: Needle-free connector with positive displacement of concept 7, in which the housing and the base have corresponding locking surfaces.
    [0047] Concept 9: Needle-free connector with positive displacement of concept 8, in which the corresponding fitting surfaces comprise “v” shaped cam surfaces.
    [0048] Concept 10: Needle-free connector with positive displacement of concept 8, where the corresponding fitting surface comprises a key and a fixing slot.
    [0049] Concept 11: Needle-free connector with positive displacement of concept 7, in which the housing, the valve element and the base define a fluid flow path from a first fixing slot for a second Luer coupling .
    [0050] Concept 12: Needle-free connector with positive displacement of concept 11, in which the valve element includes a septum, and the valve element and the base define an air passage that connects the septum with the atmosphere.
    [0051] Concept 13: Needle-free connector with positive displacement, concept 12, in which the air passage is sealed from the fluid flow path.
    [0052] Concept 14: Needle-free connector with positive displacement, comprising: a housing that has a first Luer coupling at a proximal end of it; a base that has a second Luer latch at a distal end thereof; and a valve element with a proximal end that creates a seal on the first Luer coupling and fastens to the proximal end of the base using an interlocking pressure fitting.
    [0053] Concept 15: Needle-free connector with positive displacement of concept 14, in which the air passage from the septum of the valve element comprises a single path arranged axially within a part of the base that forms the fitting part depression.
    [0054] Concept 16: Needle-free connector with positive displacement of concept 15, in which the air passage also comprises branches from the single path to the atmosphere.
    [0055] Concept 17: Needle-free connector with positive displacement, concept 16, in which the branches have triangular shapes.
    [0056] Concept 18: A method for assembling a needle-free access connector, said needle-free access connector including a housing that has a first Luer latch on a proximal end thereof, a base that has a second Luer latch on a distal end thereon, and a valve element with a septum and a proximal end that creates a first seal on the first Luer coupling, the method comprising: attaching a distal end of the valve element to a proximal end of the base, creating a second seal between the valve element and the base, separating the septum from a fluid flow path between the first and the second Luer coupling, characterized by the fact that the outer surfaces of the valve element and the base are connected where the said external surfaces meet; and the arrangement of the valve element and the base within the housing.
    [0057] Concept 19: The method of concept 18, in which the fixation of a distal end of the valve element at the proximal end of the base comprises: forcing an interlocking pressure fitting.
    [0058] Concept 20: Method, from concept 18, also comprising: permanent fixing of the base to the housing. Legend of the Figures Figure 1A T1) for the fluid reservoir T2) for the catheter
    权利要求:
    Claims (25)
    [0001]
    1. “NEEDLE-FREE ACCESS CONNECTOR WITH POSITIVE DISPLACEMENT”, having a housing (230) with a female Luer adapter; a base (210) with a male Luer adapter; and a valve element (220) with a proximal end that creates a seal in the housing, a septum (221) and a distal end that attaches to the base to ventilate the septum, the base and the valve element coupling to create a assembly that has a larger outer diameter that is less than an inner diameter of the housing; characterized in that the base comprises a “Y” shaped ventilation route (212, 501) from the septum to the distal end of the base, the “Y” shaped ventilation route comprising triangular shaped segments (212).
    [0002]
    2. “POSITIVE DISPLACEMENT NEEDLE ACCESS CONNECTOR”, according to claim 1, characterized in that the distal end of the valve element is fixed to the base using a closing mechanism (250).
    [0003]
    3. “NEEDLE ACCESS CONNECTOR WITH POSITIVE DISPLACEMENT”, according to claim 1, characterized in that the housing is coupled to the base using a “v” shaped adapter (211, 233).
    [0004]
    4. “NEEDLE-FREE ACCESS CONNECTOR WITH POSITIVE DISPLACEMENT”, according to claim 1, characterized in that the housing is coupled to the base using a key and a plug-in adapter.
    [0005]
    5. “NEEDLE-FREE ACCESS CONNECTOR WITH POSITIVE DISPLACEMENT”, according to claim 1, characterized in that the valve element and the base define an air passage that connects the septum with an atmosphere (212, 501).
    [0006]
    6. “POSITIVE DISPLACEMENT NEEDLE ACCESS CONNECTOR”, according to claim 5, characterized in that the air passage is sealed from a fluid flow path between the male and female Luer adapters.
    [0007]
    7. “NEEDLE-FREE ACCESS CONNECTOR WITH POSITIVE DISPLACEMENT”, according to claim 1, having: a housing (230) that has a first Luer adapter at a respective proximal end; a base (210) having a vent and a second Luer adapter at a respective distal end; and a valve element (220) with a septum (221) and a proximal end that creates a seal on the first Luer adapter and attaches to the base; characterized in that the base and the housing have corresponding “v” shaped interlocking surfaces (211, 233), so that, when the base is secured with the valve element and the housing, an air passage (212, 501 ) is defined between the septum, ventilation and atmosphere.
    [0008]
    8. "POSITIVE DISPLACEMENT NEEDLE ACCESS CONNECTOR" according to claim 7, characterized in that the corresponding locking surfaces comprise a key and a locking adapter.
    [0009]
    9. "NEEDLE ACCESS CONNECTOR WITH POSITIVE DISPLACEMENT", according to claim 7, characterized in that the housing, the valve element and the base define a fluid flow path from a first Luer adapter to a second adapter Luer.
    [0010]
    10. “NEEDLE-FREE ACCESS CONNECTOR WITH POSITIVE DISPLACEMENT”, according to claim 7, characterized in that the air passage is sealed from a fluid flow path.
    [0011]
    11. “NEEDLE-FREE ACCESS CONNECTOR WITH POSITIVE DISPLACEMENT”, according to claim 7, characterized in that the ventilation comprises at least one segment (212) that expands along the air passage.
    [0012]
    12. “NEEDLE-FREE ACCESS CONNECTOR WITH POSITIVE DISPLACEMENT”, according to claim 11, characterized in that at least one segment (212) has a triangular shape.
    [0013]
    13. "POSITIVE DISPLACEMENT NEEDLE ACCESS CONNECTOR" according to claim 11, characterized in that at least one segment (212) extends from a central axis of the base to an external surface of the base.
    [0014]
    14. “NEEDLE ACCESS CONNECTOR WITH POSITIVE DISPLACEMENT”, according to claim 7, characterized in that the “v” shaped fitting surfaces direct the flow path from a first Luer adapter to a flow channel of the base.
    [0015]
    15. “POSITIVE DISPLACEMENT NEEDLE ACCESS CONNECTOR”, according to claim 14, characterized in that the ventilation is fluidly isolated from the flow channel by the “v” shaped fitting surfaces.
    [0016]
    16. "POSITIVE DISPLACEMENT NEEDLE ACCESS CONNECTOR", according to claim 7, characterized in that the valve element is fixed to a proximal end of the base using an interlock fitting adapter (250).
    [0017]
    17. "NEEDLE ACCESS CONNECTOR WITH POSITIVE DISPLACEMENT" according to claim 10, characterized in that the passage of air from a valve element septum comprises a single route (501) axially disposed within a portion of the base that is part of the plug-in adapter.
    [0018]
    18. "NEEDLE-FREE ACCESS CONNECTOR WITH POSITIVE DISPLACEMENT", according to claim 1, having a housing (230) that has a first Luer adapter at a respective proximal end; a base (210) that has a second Luer adapter at a respective distal end; and a valve element (220) with a proximal end and a distal end, characterized in that the proximal end creates a seal on the first Luer adapter and the distal end attaches to the proximal end of the base (210) using an interlock fitting adapter (250); wherein the valve element includes a septum (221) and where the valve element and base define an air passage (212, 501) that connects the septum with an atmosphere.
    [0019]
    19. "NEEDLE ACCESS CONNECTOR WITH POSITIVE DISPLACEMENT", according to claim 18, characterized in that the housing, the valve element and the base define a fluid flow path from a first Luer adapter to a second adapter Luer.
    [0020]
    20. "NEEDLE-FREE ACCESS CONNECTOR WITH POSITIVE DISPLACEMENT", according to claim 19, characterized in that the air passage is sealed from the fluid flow path.
    [0021]
    21. “POSITIVE DISPLACEMENT NEEDLE ACCESS CONNECTOR” according to claim 18, characterized in that the air passage comprises a single route (501) arranged axially within a part of the base that forms part of the plug-in adapter (250 ).
    [0022]
    22. “NEEDLE-FREE ACCESS CONNECTOR WITH POSITIVE DISPLACEMENT”, according to claim 21, characterized in that the air passage also comprises segments (212) from the single route (501) to the atmosphere.
    [0023]
    23. “NEEDLE-FREE ACCESS CONNECTOR WITH POSITIVE DISPLACEMENT”, according to claim 18, characterized in that the segments have a triangular shape.
    [0024]
    24. “NEEDLE-FREE ACCESS CONNECTOR WITH POSITIVE DISPLACEMENT”, according to claim 18, characterized in that the housing and the base have corresponding fitting surfaces, comprising “v” shaped (211, 233) shoulder surfaces.
    [0025]
    25. “NEEDLE-FREE ACCESS CONNECTOR WITH POSITIVE DISPLACEMENT”, according to claim 18, characterized in that the housing and the base have corresponding locking surfaces, comprising a key and a locking adapter.
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    同族专利:
    公开号 | 公开日
    US10010711B2|2018-07-03|
    JP2013521983A|2013-06-13|
    CN102791326A|2012-11-21|
    US8951233B2|2015-02-10|
    RU2015134346A|2018-12-24|
    EP2550057A4|2014-07-30|
    US8298196B1|2012-10-30|
    KR101806777B1|2017-12-07|
    RU2688318C2|2019-05-21|
    RU2565716C2|2015-10-20|
    AU2011229864B2|2016-01-07|
    CA2793473A1|2011-09-29|
    BR112012022980A2|2017-02-07|
    CN102791326B|2015-02-04|
    AU2016201947B2|2017-09-21|
    MX341913B|2016-09-07|
    AU2011229864A1|2012-11-15|
    EP2550057A2|2013-01-30|
    US20150151100A1|2015-06-04|
    WO2011119347A3|2012-01-26|
    WO2011119347A2|2011-09-29|
    RU2015134346A3|2019-03-15|
    CA2793473C|2018-04-24|
    JP6396347B2|2018-09-26|
    RU2012139444A|2014-03-20|
    AU2016201947A1|2016-04-21|
    KR101768429B1|2017-08-14|
    KR20170048616A|2017-05-08|
    JP2016105820A|2016-06-16|
    US20120316514A1|2012-12-13|
    KR101733258B1|2017-05-08|
    KR20130007576A|2013-01-18|
    MX2012010689A|2012-10-09|
    KR20170094009A|2017-08-16|
    JP5955313B2|2016-07-20|
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    法律状态:
    2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-10-29| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-07-28| B07A| Technical examination (opinion): publication of technical examination (opinion)|
    2020-12-01| B09A| Decision: intention to grant|
    2021-01-19| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 10/03/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US12/730,961|US8298196B1|2010-03-24|2010-03-24|Needleless access connector and method of use|
    US12/730,961|2010-03-24|
    PCT/US2011/027994|WO2011119347A2|2010-03-24|2011-03-10|New needleless access connector and method of use|
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