WO2005016221A1 - Connector with connection mechanism adapted for releasable interconnection with tube - Google Patents
Connector with connection mechanism adapted for releasable interconnection with tube Download PDFInfo
- Publication number
- WO2005016221A1 WO2005016221A1 PCT/US2004/012691 US2004012691W WO2005016221A1 WO 2005016221 A1 WO2005016221 A1 WO 2005016221A1 US 2004012691 W US2004012691 W US 2004012691W WO 2005016221 A1 WO2005016221 A1 WO 2005016221A1
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- WO
- WIPO (PCT)
- Prior art keywords
- connector
- tube
- figures
- cap
- ferrule
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J15/00—Feeding-tubes for therapeutic purposes
- A61J15/0026—Parts, details or accessories for feeding-tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M39/12—Tube connectors; Tube couplings for joining a flexible tube to a rigid attachment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J15/00—Feeding-tubes for therapeutic purposes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M2039/1027—Quick-acting type connectors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M2039/1033—Swivel nut connectors, e.g. threaded connectors, bayonet-connectors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
- A61M39/10—Tube connectors; Tube couplings
- A61M2039/1077—Adapters, e.g. couplings adapting a connector to one or several other connectors
Definitions
- Enteral tubes for providing food and medication to a patient are well known.
- U.S. Patent No. 4,685,901 entitled Gastro-Jejunal Feeding Device, invented by Parks and issued August 11, 1987 disclose earlier feeding tubes.
- FIG. 1A there is shown a perspective view of an earlier enteral feeding device 20.
- the device 20 includes an elongated tubular member 51 formed from a stretchable elastomeric material such as silicone.
- Figure 1 B is an illustrative cross-sectional view of the tubular member 51 of the earlier device.
- the tubular member 51 defines a jejunal tube 22, a gastronomy tube 34 and a fluid line 46.
- the jejunal feeding tube 22 ( Figures 1A and 1B) includes an outlet end portion 24 ( Figure 1A) which can extend through a patient's stomach into the jejunum.
- the jejunal tube outlet end portion includes perforations 26 ( Figure 1A) which permit liquid food or medication to pass therethrough.
- the tube 22 ( Figures 1A and 1B) is integrally connected to a jejunal tube inlet end portion 28 ( Figure 1 A) which defines a jejunal inlet port 30 ( Figure 1A) having a removable plug cover 32 ( Figure 1 A).
- the gastrostomy tube 34 ( Figure 1 A) is shorter than the jejunal tube 22 ( Figures 1A and 1B) and includes a plurality of drainage inlets or food outlet ports such as inlet/outlet 36 ( Figure 1 A).
- a gastrostomy tube end portion 37 ( Figure 1 A) defines a gastrostomy inlet port 38 ( Figure 1A) having a plug cover 40 ( Figure 1A).
- An inflatable balloon 42 is provided near the end of the gastrostomy tube 34 ( Figures 1 A and 1 B) and is inflatable through a valve 44.
- the valve 44 is used to supply fluid to the balloon 42 through the fluid line 46 ( Figures 1A and 1B).
- Frictional contact between the elongated tubular member 51 (Figures 1A and 1B) and a locking ring 56 (Figure 1 A) is sufficiently great to prevent the tubular member 51 ( Figures 1A and 1B) from moving further into the stomach.
- the locking ring 56 ( Figure 1A) remains in contact with a patient's abdominal wall during use. However, the frictional contact is sufficiently low to permit adjustment of placement of the tubular member 51 ( Figures 1 and 1B) relative to a patient's abdomen.
- FIG. 1 A a connector, such as a first connector 58 illustrated in Figure 3 or a second connector 60 illustrated in Figure 4, is inserted through the jejunal inlet port 30 ( Figure 1A).
- the inserted connector 58 ( Figure 3) or 60 ( Figure 4 ⁇ is mechanically coupled to the jejunal inlet port 30 ( Figure 1A) and serves as a conduit between the jejunal tube 22 ( Figures 1A and 1B) and an external feeding tube 62 or 64, shown in Figures 3 and 4 respectively.
- the external tube 62 or 64 is connected to a source of food such as a feeding bag (not shown).
- connectors 58 or 60 such as those shown in Figures 3 and 4, for example, may be inserted into and removed from the jejunal inlet port 30 ( Figure 1A) or the gastrostomy inlet port 38 ( Figure 1 A) numerous times during the course of use of the device 20 ( Figures 1A and 2) which can be installed in a patient's stomach for extended periods of time.
- the tubular member 51 which defines the jejunal tube inlet end 28 ( Figure 1A), and the gastrostomy tube end portion 37 ( Figure 1A) can be formed from a stretchable elastomeric material such as silicone.
- the connector 58 In order to produce an adequate mechanical coupling between the connector 58 ( Figure 3) or 60 ( Figure 4) and either the jejunal inlet port 30 ( Figure 1 A) or the gastrostomy inlet port 38 ( Figure 1A), the connector is forced into place so as to produce a frictional engagement. Repeated insertions and removals of such connectors 58 ( Figure 3) or 60 ( Figure 4) can cause the jejunal inlet port 30 ( Figure 1 A) or the gastrostomy inlet port 38 ( Figure 1 A) to become somewhat stretched and deformed over time.
- a connector configured for releasable interconnection with a tube and a second member has been developed. More specifically, one aspect of the present invention is directed to a connector adapted for use with a feeding set formed from flexible material.
- the connector generally includes a body with a conduit therethrough and connecting mechanism.
- the body has a first end, a second end, an inner surface and an outer surface.
- the connecting mechanism provides for the releasable connection of a tube to the first end of the connector.
- Another aspect of the present invention relates to a universal connector adapted for use with a medical device.
- the adapter includes a body with a conduit therethrough and a mechanism for releasably securing a tube to the first end of the connector.
- the body has a first end, a second end, an inner surface and an outer surface.
- the outer surface of the body has at least two regions having different diameters and at least one bevel, wherein the bevel connects two regions along the surface of the body having different diameters.
- the method generally includes providing a connector having a mechanism for releasably securing a tube to the connector, providing a tube having two ends, and inserting one end of the tube into the mechanism. More specifically, the method includes providing a connector having a body with a conduit therethrough, the body of the connector having a first end, a second end, an inner surface and an outer surface, where the outer surface has at least two regions having different diameters and at least one bevel, wherein the bevel connects two regions along the surface of the body having different diameters.
- Figure 1 A is a perspective view of an earlier feeding tube
- Figure 1B is a cross-sectional view along line 1 B-1 B of Figure 1A
- Figure 2 is a perspective partially cutaway view of an earlier feeding tube installed in a patient
- Figures 3 and 4 are side elevation views of earlier connectors for insertion into end portions of a feeding tube
- Figure 5 is a perspective view of a connector having a connecting mechanism in accordance with the present invention
- Figure 5A is a exploded view of an alternative connector having a connecting mechanism in accordance with the present invention
- Figure 6 is a perspective view of a ferrule
- Figure 6A is an exploded view of a ferrule, a feeding tube, and a connector in accordance with the present invention
- Figure 7 is a side elevational view of a connector in accordance with the invention interconnected with a second member
- FIG. 1 there is illustrated an exploded perspective view of a connector 200 in accordance with a present embodiment of the invention.
- the connector 200 shown includes a body 204 with a conduit or bore 206 therethrough.
- the body 204 has a first end 208, a second end 210, an inner surface 212 and an outer surface 214 as well as an optional protrusion 202 extending from the outer surface 214 of the body 204.
- the protrusion 202 is desirably configured to be received in a second member (illustrated as ferrule 70 in Figure 6) so as to allow the connector 200 and the second member to be releasably interlocked or interconnected.
- the protrusion may be in a variety of sizes and shapes, the protrusion 202 shown in Figures 5, 5A and 7 is merely exemplary and is illustrated as such for purposes of discussion and understanding.
- the size and shape of the protrusion 202 may be dictated in part by the second member the connector 200 is intended to be used with.
- a more detailed description about a suitable protrusion is described in commonly assigned copending U.S. Patent Application Serial Number 10/635,293 entitled “CONNECTOR WITH PROTRUSION ADAPTED FOR INTERCONNECTION WITH SECOND MEMBER” (Attorney Docket No. 19,690A), which is herein incorporated by reference in its entirety.
- an exemplary second member e.g., ferrule 70
- the second member shown in Figures 6 and 7 is merely exemplary and the dimensions of the various aspects thereof may vary in size and shape.
- a connector 200 ( Figures 5, 5A and 7-8B) of the present invention may be configured to be received in any suitable second member.
- a more detailed description of an exemplary second member is described in commonly assigned copending U.S. Patent Application Serial Number 10/635,729 entitled “FERRULE AND ENTERAL TUBE INCORPORATING A FERRULE” (Attorney Docket No. 18,866), which is herein incorporated by reference in its entirety.
- a second member such as ferrule 70 ( Figures 6 and 7)
- a connector in accordance with the present invention may be used to connect to other devices with or without such a second member.
- a feeding tube such as that shown in Figure 1 (without a ferrule) or the feeding tube 232 in Figure 6A (with a ferrule 70) are equally suitable for use with the present invention.
- the connector 200 is shown having an outer surface 214 which has regions with different diameters. Although the connector need not have regions having different diameters, it is generally desired that a connector, such as that shown as 200 in Figure 5, have at least two such regions 222, 224 having different diameters so as to more readily allow the connector 200 to be compatible with multiple second members.
- Those embodiments of the present invention which have multiple regions with different diameters along the outer surface 214 ofthe connector 200 also desirably include at least one luer or bevel 216 that connects two regions (e.g. 222 and 224 or 224 and 226) of the outer surface 214 of the body 204 having different diameters.
- the outer surface 214 of the body 204 of the connector 200 may be tapered at least in part. Depending on the embodiment this taper may be, for example, a luer or bevel (e.g. 216 in Figure 5) or it may be another region of the outer surface 214 of the body 204 such as 222a, 224a, 226a (see Figure 5A).
- the outer surface 214 of the body 204 of the connector 200 may be generally parallel to the central axis 218 of the connector 200 as in Figure 5 or the outer surface 214 of the connector 200 may be inclined relative to the central axis 218 so as to form a taper as shown in Figure 5A.
- multiple tapers may be present on one connector.
- the interior surface 212 of the connector 200 may be tapered.
- the adapter can take a variety of forms and shapes including, for example, a universal connector or a "Christmas tree" connector.
- tapers along the outer surface 214 of the connector 200 may be configured for engagement with a second member to promote or assist in the creation of a seal, lock, gasketing effect or the like between the two components.
- a second member to promote or assist in the creation of a seal, lock, gasketing effect or the like between the two components.
- the protrusion 202 may be located on or extend from the ends 208, 210 of the connector 200, it is generally desirable for the protrusion 202 to be located or positioned along the outer surface 214 of the body 204 of the connector 200 between the first end 208 and the second end 210 of the body 204. More desirably, the protrusion will be located closer to the first end 208 than the second end 210. Furthermore, while the protrusion 202 may protrude from the connector 200 at any suitable angle relative to the central axis 218, it is generally desirable for the protrusion to protrude from the connector at angle of about 80° to about 100°, and more desirably about 90° relative to the central axis 218.
- the size, shape and location of the protrusion may depend on the connector and second member intended to be used therewith.
- connectors such as those shown in Figures 3 and 4, used with feeding bags and enteral feeding devices were permanently fixed to the feeding sets or bags because they were not intended for multiple use nor were they intended for attachment at the time or point of use to tubes, feed bags, feeding sets, or the like.
- the connectors of the present invention are not permanently attached (e.g. sonically bonded, glued, etc.) to the tube or feeding set they are intended to be used therewith.
- one or more embodiments of the present invention can have a connection mechanism (such as those shown as 300, 400, 500 and 600 in Figures 5, 8, 8A and 8B, respectively) at the first end 208 ( Figures 5, 5A and 7-8B) of the body 204 ( Figures 5, 5A and 7-8B) which may be used to releasably attach the connector 200 (Figures 5, 5A and 7-8B) to a tube 250 ( Figures 6A and 8-8B).
- a connection mechanism such as those shown as 300, 400, 500 and 600 in Figures 5, 8, 8A and 8B, respectively
- connection mechanisms include, but are not limited to, slip connect, screw connect, slip fit, friction fit, grommets, compression fittings, compression sleeves and the like.
- this embodiment includes a slot 77 which extends through the wall 71 of the ferrule. As illustrated the slot has a first portion or leg 77a and a second portion or leg 77b.
- the slot 77 is adapted to receive a protrusion 202 ( Figures 5, 5A and 7) on a connector 200 ( Figures 5, 5A and 7) inserted into ferrule 70 ( Figures 6 and 7). It is contemplated that the slot 77 may extend through entire width of the wall 71 of the ferrule 70, however, it is also contemplated that the slot may only extend through a portion of the wall 71 of the ferrule 70 (e.g. as to form a recess in the wall). Also, while shown between end surface 73 and rib 74a in Figure 6, slot 77 may be in any suitable position in ferrule 70.
- the slot may extend through at least a portion of the end surface 73 ( Figure 6) of the ferrule; however, depending on the size of the connector and the location of the protrusion 202 ( Figures 5, 5A and 7) thereon, the slot 77 ( Figures 6 and 7) in the ferrule 70 ( Figures 6 and 7) may be located closer to the end 75 ( Figures 6 and 7) of the ferrule opposite end surface 73, and the slot need not extend into or through end surface 73.
- a suitable connector may be selected.
- a suitable second member may be selected based on the dimensions of a connector that is selected for use.
- the illustrative drawing of Figure 9, shows a cross-sectional view of the ferrule 70 of Figure 6.
- First, second and third interior wall regions exemplarily shown as 82, 84 and 86 define a conduit 88 extending between the inlet opening 78 and the outlet opening 80.
- first, second and third interior wall regions 82, 84 and 86 each desirably have substantially cylindrical contours and are aligned along a central axis 90 of the conduit 88.
- first, second and third interior wall regions 82, 84 and 86 may define three separate surfaces which may be taper lock surfaces.
- Each of these interior wall regions can be sized and contoured to conform to the shape of a different portion of a connector or to multiple connectors so as to enable the use of ferrule 70 with a variety of connectors.
- first interior wall region 82 can be sized and contoured to conform to the shape of a portion of a connector such as that shown as 58 in Figure 3 or 60 in Figure 4 or 200 in Figures 5, 5A and 7-8B.
- the second interior wall region 84 ( Figure 9), for example, can be sized and contoured to conform to the shape of another portion of the connectors in Figures 3-5A and 7-8B or another connector altogether.
- the third interior wall region 86 ( Figure 9), for example, can be sized and contoured to conform to the shape of yet another connector (not shown) with a narrower body shape or another portion of the connectors discussed above.
- FIG. 9 A taper lock may be caused by a frictional engagement force that results when a connector 200 (Figures 5, 5A and 7-8B) becomes lodged within the ferrule 70 ( Figures 6 and 7) because of, for example, tapered surfaces 82, 84, 86, 92, 94 ( Figure 6) or 216, 222a, 224a, 226a ( Figure 5A) which come in contact with another surface which is also desirably tapered.
- a taper lock or the like between the ferrule 70 and a connector desirably should not prevent the rotation or movement of connector relative to the ferrule 70 so as to enable the interlocking discussed herein.
- the present invention also contemplates instances in which a taper lock or other seal between the ferrule 70 and one or more wall regions of a connector is not made.
- the first interior wall region 82 is shown with walls 82, 84 and 86 that are inclined relative to the central axis 90 so as to define a generally conical shape in which the diameter of a first segment of the conduit 88 defined by the first interior wall region 82 decreases with increasing distance from the inlet opening 78.
- a first interior annular shoulder 92 demarcates the end of the first interior wall region 82 of the ferrule of Figure 9.
- the interior walls of a ferrule may engage one or more of the regions of the body 204 ( Figures 5, 5A and 7-8B) of a connector 200 ( Figures 5, 5A and 7-8B) of the present invention so as to assist in the connection and/or retention of the components relative to each other and/or to reduce or minimize fluid leaks between the components.
- a second segment of the conduit 88 is shown in Figure 9 as being defined by the second interior wall region 84 which also is substantially conical in shape.
- the walls of the second interior wall region 84 may be inclined relative to the central axis 90 such that the diameter of a second conduit segment decreases with increasing distance from the inlet opening 78.
- a second interior annular shoulder 94 demarcates the end of the second interior wall region 84 of the ferule of Figure 9.
- a third segment of the conduit 88 is shown in Figure 9 as being defined by the third conical interior wall region 86.
- the walls of the third interior wall region 86 are shown inclined relative to the central axis 90 such that the diameter of the third conduit segment decreases with increasing distance from the inlet opening 78.
- the dimensions of the third interior wall region 86 may be those of a luer so as to be adopted to engage a portion of a connector. It will be understood that although the above described embodiments disclose smooth inner wall regions (e.g.
- a taper-lock can be formed in which inner wall regions have contours formed in them such as ridges, steps, bumps and the like.
- the connector may be formed such that the outer surfaces (e.g. 214 in Figure 5) have contours formed in them such as ridges, steps, bumps and the like.
- a connector 200 Figures 5, 5A and 7-8B
- ferrule 70 Figures 6 and 7 may create a lock or seal (e.g.
- the ferrule 70 also has at least one slot 77 ( Figures 6 and 7) therein which is capable of receiving a protrusion 202 ( Figures 5, 5A and 7) on a connector 200 such as that shown in Figures 5, 5A and 7.
- slot is used throughout this disclosure for ease of reading and understanding, and while not intending to be limited thereby, the term slot is intended to also include groove, channel, opening, recess, aperture and the like.
- slot 77 of the ferrule 70 may be of any suitable shape and size. That is, for example, the second portion 77b of an "L-shaped slot” may be inclined or declined relative to the central axis 90 ( Figure 9) of the ferrule 70 ( Figures 6 and 7) or the slot may be at least partially curved, T-shaped, U-shaped or the like.
- the slot 77 may have in at one least portion thereof a non-smooth surface or other mechanism (not shown) so as to enhance the ability of the ferrule 70 (Figures 6 and 7) to retain its position with a connector 200 ( Figures 5, 5A and 7-8B) so as to minimize or reduce inadvertent or undesired separation of the components.
- a connector in accordance with the present invention may be used in conjunction with either a ferrule 70 ( Figures 6 and 7) with a slot 77 ( Figures 6 and 7) as discussed above or with a ferrule lacking a slot capable of receiving the protrusion of the connector.
- the connector 200 ( Figures 5, 5A and 7-8B) of the present invention is used in conjunction with a ferrule having a slot which is capable of receiving the protrusion 202 ( Figures 5, 5A and 7) on the connector 200 and acting in conjunction with the projection 202 to retain or assist in maintaining the positioning of the connector 200 ( Figures 5, 5A and 7) relative to the ferrule 70 ( Figures 6 and 7), the protrusion 202 ( Figures 5, 5A and 7) should be aligned with the slot 77 ( Figures 6 and 7) to allow the connector 200 ( Figures 5, 5A and 7) to be inserted into the ferrule 70 as illustrated in Figure 7.
- the ferrule 70 ( Figures 6 and 7), and more specifically the slot 77 ( Figures 6 and 7) therein, is desirably designed such that a protrusion 202 ( Figures 5, 5A and 7) may be closely received within a first portion or leg 77a ( Figures 6 and 7) of the slot 77 ( Figures 6 and 7).
- the connector 200 ( Figures 5, 5A and 7) and protrusion 202 ( Figures 5, 5A and 7) may be rotated relative to the ferrule 70 ( Figures 6 and 7) so as to be received within an intersecting second portion or leg 77b ( Figures 6 and 7) of slot 77 ( Figures 6 and 7) in a manner to releasably interlock the connector 200 ( Figures 5, 5A and 7) with the ferrule 70 ( Figures 6 and 7).
- Such an interlocking connection can provide a way to retain the position of a connector relative to a ferrule, even in those instances where a taper lock or other connection or seal between the outer surface of the connector and the ferrule (as discussed above) is not present or achieved.
- the connector may include a sealing member or the like (not shown) desirably made of an elastomeric material or the like, which is capable of creating or forming a seal, gasketing effect, or the like with the second member the connector is intended to be used with.
- the sealing member may be located between the first end 208 ( Figures 5, 5A and 7-8B) and the second end 210 (Figures 5, 5A and 7-8B) of the body 204 ( Figures 5, 5A and 7-8B) of the connector 200 ( Figures 5, 5A and 7-8B), but is desirably located closer to the first end 208 of the body 204 than the protrusion 202 ( Figures 5, 5A and 7).
- Exemplary material the sealing member includes, for example, an elastomeric material or the like, and an exemplary embodiment may take the form of an o- ring, gasket or the like. Such a seal or the like can act to reduce, minimize or prevent leakage from the ferrule when the connector is inserted therein.
- the connector 200 and ferrule 70 should be rotated relative to one another such that the protrusion 202 is aligned with first portion or leg 77a of slot 77 of the ferrule 70. Once the protrusion is aligned with the leg 77a of slot 77, the connector 200 may be withdrawn from the ferrule 70 when sufficient force in the proper direction is applied.
- the connectors 200 in accordance with the present embodiments of the invention advantageously can be used to ensure that insertion, interconnection and removal from an end portion of a feeding tube or the like is facilitated without the exertion of undue force and without resulting in unwanted stretching of the end portion.
- the outer surface of connectors in accordance with the present invention can be sized and contoured to precisely conform to the shape of a number of different ferrule portions, however, as indicated above, the creation of a taper lock or the like between the connector and the ferrule while desired is not necessary.
- the connectors of the present invention advantageously can reduce or minimize undesired disconnections or separations from a second member.
- connection mechanisms such as 300, 400, and 500 shown in Figures 5, 8 and 8A, respectively
- a connector 200 Figures 5, 5A and 7-8B
- a tube 250 which may, for example, be part of a feeding set thereby providing for the ability to make a secure connection between the connector and the second member where such a connection might not otherwise have been obtainable.
- the present invention enables a user to remove the original connector (e.g., cut it off) and then substitute a connector in accordance with the present invention onto the feeding set.
- connection mechanism 300 ( Figures 5 and 6A) ofthe present invention allows the tube 250 ( Figures 6A and 8-8B) to be connected to the connector 200 ( Figures 5, 5A and 7-8B) so as to create an association which desirably minimizes or avoids leaks between the connector and the tube. Further, when the feeding bag is empty, the user may disconnect the connector 200 from the tube 250 ( Figures 6A and 8-8B) so as to make the connector available for future use with another feeding set. Thus, use of an undesirable or less desirable feed set or bag may be avoided as the present invention provides for use of a connector which is suitable for use with a feeding tube or catheter desired by the patient or clinician, even if the original connector on the desired feed set was not generally compatible with the desired feeding tube or catheter.
- connection mechanism 300 includes a first member, and more specifically a compression fitting or sleeve 302 and a cap 304.
- the cap 304 desirably fits over the compression fitting 302 but each has a bore 306, 307 respectively as shown in Figures 5 and 6A.
- the compression fitting 302 and cap 304 work together to so as to allow the releasable connection of a tube 250 ( Figures 6A and 8-8B).
- a tube 250 ( Figures 6A and 8-8B) may be inserted into bores 306 and 307.
- the compression fitting 302 and cap 304 may work in conjunction with the inner surface 212 ( Figure 5) of the connector to retain the tube 250 ( Figures 6A and 8-8B) therein.
- compression fitting 302 and cap 304 may try to move in said direction; however, as such movement occurs, sufficient pressure against the side of the tube 250 will be applied by one or more components of the connection mechanism 300 so as to prevent the removal of the tube 250 from the connection mechanism 300.
- the tube 250 may be removed from the compression fitting 302 and cap 304 by, for example, holding the connector mechanism 300 in a position such as that shown in Figure 7 such that the compression fitting 302 and/or cap 304 ( Figures 5 and 6A) are not applying the requisite pressure against the tube 250 ( Figures 6A and 8-8B) to prevent the removal of the tube 250.
- the connector mechanism 300 holding the connector mechanism 300 in a position such as that shown in Figure 7 such that the compression fitting 302 and/or cap 304 ( Figures 5 and 6A) are not applying the requisite pressure against the tube 250 ( Figures 6A and 8-8B) to prevent the removal of the tube 250.
- the cap 304 ( Figures 5A and 6A) is not required in all embodiments having a compression fitting 302. That is, compression fitting 302 may act in conjunction with the connector 200 to retain the tube 250.
- the compression fitting 302 and cap 304 being separate pieces they can be integrally formed and/or connected.
- connection mechanism 400 includes a grommet 402 and cap assembly.
- the cap assembly is shown as including a cap 404, an o-ring 406 and an o-ring seat 408, the o-ring 406 and o-ring seat 408 may only be present in some embodiments.
- the tube 250 is desirably inserted or pushed onto the grommet 402 and the cap 404 may be positioned such that the tube 250 is held in place.
- the cap 404 may be positioned in a tightened or retaining position so as to apply pressure to the outside of the tube 250 and in such a manner as to grip or sandwich the tube 250 between the cap 404 and the grommet 402.
- the application of pressure may be direct or indirect. That is, for example, the cap 404 may contact the tube 250 directly (not shown) so as to retain the tube within the connector or the cap 404 may contact the o-ring 406 which may be seated in a groove or o-ring seat 408 such that when the cap 404 is put into in a tightened or retaining position the cap 404 may cause the o-ring 406 to contact or apply more pressure to the tube 250 so as to retain the tube within the connector. All suitable ways for tightening and/or keeping the cap 402 in a tightened or retaining position are contemplated by the present invention.
- Exemplary ways include, but are not limited to, a threaded cap 404 such as that shown in Figure 8 which may be screwed or tightened onto the end 208 of a connector 200 by turning the cap 404.
- the cap is desirably such that while it may be loosened so as to allow release of the tube 250, the cap 404 may not be completely removed from the connector.
- the cap 504 may have a boss 506 and the connector 200 a groove or detent 508 such that when the cap 504 is tightened about the tube 250 so as to retain it, the boss 506 and detent 508 are in communication so as to maintain the position of the cap 504 relative to the connector 200.
- FIG. 8B Yet another exemplary embodiment of the connection mechanism is shown in Figure 8B.
- a tube 250 is placed about a grommet (not shown) or molded nipple 602 which may be part of the connector 200.
- the nipple 602 may have a flared shape with the cross-section of the nipple 602 increasing in dimension as the distance to the second end 210 of the connector 200 decreases.
- the tube 250 may flare out and may be held in place thereby.
- a cap 604 will also be present which may apply pressure directly or indirectly (e.g. via an o-ring or the like) to the tube 250 so as to retain its position relative to the connector 200.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04801853A EP1651160A1 (en) | 2003-08-06 | 2004-04-23 | Connector with connection mechanism adapted for releasable interconnection with tube |
MXPA06000838A MXPA06000838A (en) | 2003-08-06 | 2004-04-23 | Connector with connection mechanism adapted for releasable interconnection with tube. |
JP2006522538A JP2007501051A (en) | 2003-08-06 | 2004-04-23 | Connector with coupling mechanism for detachable coupling with tube |
CA002533390A CA2533390A1 (en) | 2003-08-06 | 2004-04-23 | Connector with connection mechanism adapted for releasable interconnection with tube |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/635,288 US20050033267A1 (en) | 2003-08-06 | 2003-08-06 | Connector with connection mechanism adapted for releasable interconnection with tube |
US10/635,288 | 2003-08-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005016221A1 true WO2005016221A1 (en) | 2005-02-24 |
Family
ID=34116209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2004/012691 WO2005016221A1 (en) | 2003-08-06 | 2004-04-23 | Connector with connection mechanism adapted for releasable interconnection with tube |
Country Status (6)
Country | Link |
---|---|
US (1) | US20050033267A1 (en) |
EP (1) | EP1651160A1 (en) |
JP (1) | JP2007501051A (en) |
CA (1) | CA2533390A1 (en) |
MX (1) | MXPA06000838A (en) |
WO (1) | WO2005016221A1 (en) |
Cited By (1)
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WO2006006970A1 (en) * | 2004-06-30 | 2006-01-19 | Kimberly-Clark Worldwide, Inc. | Retention device for medical components |
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- 2004-04-23 MX MXPA06000838A patent/MXPA06000838A/en unknown
- 2004-04-23 JP JP2006522538A patent/JP2007501051A/en not_active Abandoned
- 2004-04-23 EP EP04801853A patent/EP1651160A1/en not_active Withdrawn
- 2004-04-23 CA CA002533390A patent/CA2533390A1/en not_active Abandoned
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006006970A1 (en) * | 2004-06-30 | 2006-01-19 | Kimberly-Clark Worldwide, Inc. | Retention device for medical components |
US7666178B2 (en) | 2004-06-30 | 2010-02-23 | Kimberly-Clark Worldwide, Inc. | Retention device for medical components |
Also Published As
Publication number | Publication date |
---|---|
US20050033267A1 (en) | 2005-02-10 |
JP2007501051A (en) | 2007-01-25 |
CA2533390A1 (en) | 2005-02-24 |
EP1651160A1 (en) | 2006-05-03 |
MXPA06000838A (en) | 2006-03-30 |
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