CA1085252A - Connector for attachment of blood tubing to external arteriovenous shunts and fistulas - Google Patents

Connector for attachment of blood tubing to external arteriovenous shunts and fistulas

Info

Publication number
CA1085252A
CA1085252A CA288,405A CA288405A CA1085252A CA 1085252 A CA1085252 A CA 1085252A CA 288405 A CA288405 A CA 288405A CA 1085252 A CA1085252 A CA 1085252A
Authority
CA
Canada
Prior art keywords
connector
blood
tapered
sleeve
fistula
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA288,405A
Other languages
French (fr)
Inventor
Samuel Burd
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Althin Medical Inc
Original Assignee
Cordis Dow Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cordis Dow Corp filed Critical Cordis Dow Corp
Application granted granted Critical
Publication of CA1085252A publication Critical patent/CA1085252A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0009—Making of catheters or other medical or surgical tubes
    • A61M25/0014—Connecting a tube to a hub

Abstract

IMPROVED CONNECTOR FOR ATTACHMENT OF BLOOD TUBING
TO EXTERNAL ARTERIOVENOUS SHUNTS AND FISTULAS

ABSTRACT

A universal connector for a blood tubing set having a blood tube attached to one end portion and alternative means on the other end portion of said connector for selectively connecting and locking to the blood tube an external arterio-venous shunt, or a fistula.

Description

~)8~

Access to the bloodstream of a patient receiving inter-mittent dialysis for a chronic renal failure is necessary throughout the dialysis which may require from two to six hours.
Earliest access employed cannulas, that is, hollow glass or metal tubes inserted into an artery and a vein. Repeat need for access brought about a substitution of plastic for the glass or metal cannula and during the 1950's, the external ends of the plastic cannulas were connected with a short length of plastic tubing thereby short circuiting the arterial blood lQ into the vein; this provided an external, available access to the blood stream for repeated dialyses without the necessity for needle penetration of the artery and vein for each dialysis.
Such external arteriovenous shunts are currently in use on a portion of those patients receiving intermittent hemodialysis with artificial kidneys. Connection to the artificial kidney - is made by attaching blood tubing from the artiflcial kidney to the external connectors on each of the two portions of the j external plastic tubes forming the arteriovenous shunt.
By 1960, problems with the blood flowing in the external - 2Q plastic tubes of the shunt during the time between dialyses, such as clotting, infection and inadvertent separation of the external tube connector, led to an alternative shunt system.
In this system,an artery is shunted to a vein entirely under the skin and the shunt is left in place indefinitely. Resultant enlarged veins provide access sites for penetration with a fistula. Fistulas, each consisting of a needle attached to a short section of blood tubing terminating at its outer end in a connector, axe then attached to blood tubes associated with tha artificial kidney. Access to the bloodstream by fistula is currently used to a greater extent in artificial kidney dialysis than external arteriovenous shunts.

8~2~Z

One problem is ever present in delivering blood from - the patient to an artificial kidney irrespective of whether the blood access is by fistula or from an external arteriovenous shunt. That problem is inadvertent separation of the members linking the blood tubes to the blood access source. Typically, * . .
the connector consists of a short length of Teflon tubing, having its outer surface etched and its ends smooth and slightly beveled for snug fit into a tapered bore of the connector body on the fistula or external shunt, and a similar bore available on the blood tube. After the connection is made by firmly ~
pressing the connector parts together, and overlying tape is ~ -applied, the joint is nevertheless subject to forceful dis-connection at any time during the two to six-hour period the dialysis is in progress. Although accidental disconnection occurs only during a small fraction of the time, it is traumatic when it does occur and can cause death unless immediate ~¦ corrective steps are taken to stop the loss of blood.
Thus the present invention provides a univer~al connector having a blood tube connector on one end and universal connector means on the opposite end comprising a first means and a second means for selective connection and disconnec-tion on the inner or outer tapered surface of a common sleeve member with the connector portion of a fistula and of an external arteriovenous shunt, said first means comprising a gradually inwardly end to end tapering internal surface for a press fit connection between mating surfaces on said connector portion and said internal surface, and said second means comprising an outwardly end to end tapering external surface of said ~irst means and a threaded portion encircling a portion of ~ha length 30 of said first means for forming a locking connection between the connector portion o a fistula and an external arteriovenous *Trade Mark .. . . . . .
, . . ..

l~s~z shunt between mating surfaces on said connector portion and said externally tapered surface on said first means and said threaded portion thereby effecting a selected fluid-tight seal between said connector port.ion of said fistula and said external arteriovenous shunt and said first and said second means o~ said universal connector means.
In one aspect the invention provides such a universal connector comprising a body having a blood passageway there-through and wherein said first means comprises a sleeve member defining a portion of said passageway, the outer end of which ~:
projects from said body, said sleeve member being defined by a wall, said wall having an inner surface which tapers gradually ;
from its largest diameter at its outer end to its smallest diameter at its inner end,.and an outer surface which tapers from its smallest diameter at its outer end to its largest diameter at its inner end at a taper substantially greater than the taper on said inner surface, said press fit connection being effected by contact between said tapered inner surface of said sleeve wall and the outer mating surface of the connector o~ a blood access device selected from the group consisting of a :.
fistula and an external arteriovenous shunt. ;`
In another.aspect the invention provides such a universal connector comprising a body having a blood passageway therethough and wherein said second means comprises a sleeve member defining a portion of said passageway, the outer end of :.
sleeve member projecting outwardly beyond said universal connector end of said body and the inner end terminating in `
adjacency to the inner end of saia blood tube connector, said sleeve member having an outer wall portion which tapers from its smallest diameter at its outer end to its largest diameter at ~ - 2(a) -. .

:~L08S2SZ

its inner end, and a plurality of threads in said body suxrounding a portion of the length of said sleeve, the inner diameter of said threads being larger than the diameter of the said tapered outer walI of said sleeve at its inner end, said fluid-tight seal being effected by contact between said tapered , .
` outer surface of said sleeve and the inner mating surface of the connector of a blood access device selected from the group consisting of a fistula and an external arteriovenous shunt and said locking connection being effected by pressure contact between said threads and projections extending outwardly from -` the peripheral surface adjacent the inner end of said connector of said blood access device which effects said fluid-tight seal.
l In a further embodiment the present invention -`f provides a blood tube set comprising a length of blood tubing having attached to at least one end thereof a universal connec- -`
tor. The connector may in one aspect be a universal connector as set out above. The universal connector will comprise a sleeve defined by a wall portion, said wall portion being tapered on its inner surface gradually from end to end from a larger i20 diameter at its outer end to a smaller diameter at its inner I end, said wall portion being tapered on its outer surface from ~ end to end inwardly from a smaller to a larger diameter at a ;~ ;
I degree of taper in excess of the degree of taper on said inner surface, said sleeve selectively forming a press fit connection with said inner tapered surface and a locking connection with said outer tapered surace and the mating surface of the 1 connector protion of a blood access device selected from the ! group consisting of a ~istula and an external arteriovenous shunt.
Thus, the improved connector of this invention provides a locking connection that prevents accidental disengagement
- 2(b) -' ~'~'' ~0~1$~52 of the blood tube from the blood access fistula or external shunt and concurrently provides an available alternative tapered connector of the type heretofore used. No connector providing such alternative connections has been availahle heretofore to the best of applicant's knowledge.
In summary, this invention provides a universal connector for joining a blood tube to a blood access fistula or an external arteriovenous shunt by either a conventional tapered surface press fit or a locking connection. ' , The connector of this invention is simple, easy to manu-facture and provides an improved tapered sleeve for pressure fit connections relative to the heretofore available Luer slip connections ~hich use the standard Luer taper for medical applications for glass and metal, Z 70.1-1955, approved August 16, 1955. This,tapered sleeve is more gradually tapered than the Luer slip connector on its inner wall surface to form a ~ ~' leak-tight pressure fit with pre!sent day conventional Teflon ~' tube connectors; it is preferably more tapered on its outer wall surface that is received by the mating inner surface of a connector located at the exit end of a fistula or external arteriovenous shunt. This exit end of the fistula or shunt connector is also provided with male projections on its outer surface which interfit into internal threads carried by the universal connector end of the connector of this invention to thereby lock together the blood tube and such blood access connector.
The alternative connecting members on the universal con-nector end of the connector of this invention make it suitable for use with all types of connectors on external arteriovenous shunts and fistulas in current use in the United States; it provides in a single member the first known connector pro-viding conventional connector means and a combination seal-lock means ~hich locks to prevent accidental disconnection during dialysis with artificial kidney.
; The invention i5 further described by way of example with reference to the accompanying drawings, in which:
Fig. 1 is a view illustrating a typical external arterio-venous shunt in place in and on the arm of a patient;
Fig. 2 i~ a cross-sectional view of the universal con-nector of this invention;
Fig. 3 îs an end view of the connector of Fig. 2;
Fig. 4 is a view showing in approximate location on an arm, in phantom, an exploded and connected form of a connection between a blood tube caxrying the universal connector of this `
invention and an end of an external arteriovenous shunt;
Fig. 5 is a view showing in approximate location on an arm, in phantom, an exploded and connected form of a connection between a blood tube carrying the universal connector of this invention and an end of a fistula having male locking pro-jections thereon;
Fig. 6 is a view partly in section showing the connection between the parts within the circular area 6-6 of Fig. 4; and Fig. 7 is a view partly in section showing the connection between the parts within the circular area 7-7 of Fig. 5.
Referring to the drawings, the universal connector of this invention is most completely shown in Fig. 2 and is generally designated 10. Connector 10 consists of a body 12 having a bore therethrough, which bore consists of a large diameter portion 14 and a smaller diameter portion 16 com-municating therewith and connected thereto by bevel portion 18.
Large diameter bore 14 has a size selected so as to snugly receive the outer wall surface of the end of a conventional ~)85ZSZ

blood tube 20, which is normally secured therein by solvent softening of the mating surfaces and then pressing the parts together.
The body 12 is preferably abricated from a plastic which is susceptible to softening by the same solvent which softens . the material used in the blood tube 20, typically, a plasti-cized polyvinyl chloride; body 12 may be fabricated from any of a wide variety of semi-rigid to rigid plastic materiais or metals which resist corrosion from blood, saline solutions and other physiologic solutions or medicants ordinarily en-countered in the use of blood tubing; for example, semi-rigid polyvinyl-chloride polymers, semi-rigid silicone resins or polyurethanes or polycarbonates. A preferred material is a - co-polymer of propylene-vinyl chloride available commercially ~-~ under the designation StaFlow from Air Products and Chemicalsof ~ayne, Pennsylvania. Stainless steel and other corrosion resistant nickel-chromium alloys are suitable.
In the event the material selected for body 12 is-not plastic, or is not a plastic softenable by the solvent which also softens the blood tube, attachment of the blood tube to ::
one end of body 12 may be made by using an adhesive between the outer surface of blood tube 20 and the inner surface of bore 14, or with various types of mec~anical connectors well known to those skilled in this art.
The universal-connector end of body 12, t~at is the end ~
opposite from the end into which the blood tube 20 is attached, ' contains the combination of interrelated and interfunctional means so located and arranged as to provide the improved alternative connector construction that distinguishes this invention from heretofore known connectors in use in connection with blood tube sets. ' *Trade Mark .

~ S~SZ

A typical arteriovenous shunt is shown in Fig. 1 in a preferred location on a patient's inner arm spaced from the wrist and is generally designated 22. Shunt 22 consists of *
a typical Teflon tip 24 which is positioned beneath the skin in communication with an artery or vein, and a second Teflon tip 26 which completes the blood circuit from tip 24 to either an artery or vein, as required. Tips 24, 26 have connectors 28, 3Q respectively, which connect with associated silicone rubber connectors 32, 34 respectively, which in turn, inter-connect with silicone rubber tubing 36, 38 respectively.Tubing 36, 38 extends through the patient's skin at 40, 42 respectively, and are externally connected by silicone rubber body connector members 44, 46 each of which snugly xeceives a press-fit-Teflon tube connector 47, the outer surface of which is roughened, as by etching.
A typical fistula is illustrated in Fig. 5 and is generally designated 48. Fistula 48 consists of a needle 50 which pierces the skin at 52 and communicates with an artery or vein at its inner end in a conventional manner. The outer end of needle 50 is provided with projecting wing members 54 which enable secure attachment of the needle to the skin to prevent unintentional withdrawal during dialysis and is connected to a short length of blood tubing 56, terminating at its outer end in a connecto~ 58 bearing on its periphe-.al sur-face, near the outer extremity, a plurallty of' male tabs or ;`
projections 60, and a tapered inner bore 61, as may be seen in Fig. 7. Projections 60 are circumferentially sipaced apart, in opposing pairs, and preferably are 4 to 6 in number, al-though two projections may be used satisfactorily. Proje~tions 60 may be axially spaced inwardly from the outer end extremity of connector 58 a small distance or immediately adjacent to *Trade Mark ' L t~ 6-~t~

S2S~

the outer end surface, as desired. The interrelationship between the thread on the universal-connector end of con-nector 10 and the projections 60 to effect a locking relation-ship and simultaneously effect the leak-tight fit between fistula 48 and connector 10 will be e~plained in greater detail below, particularly in connection with Fig. 7. Projections 60 should be fabrlcated of sufficient width, in the axial direc-tion, to withstand the substantial pressure that may be needed to effect a tight leak-free connection, and preferably are tapered, from thin to broad, in the circumferential direction of rotation to lock.
Returning, now to the novel construction of the universal-connector end of connector 10, body 12 is multi-faceted, e.g., octagonal as indicated at 13, and is provided with outwardly projecting sleeve 62 which defines small diameter opening 16.
The inner surface of sleeve 62 is very gradually tapered from -~
the diameter 64 at its extreme outer end to its inner end 66, for example, at less than about 0.02"~nch. The outer surface 68 of sleeve 62 is also tapered from its smallest diameter, at its outer end, to its largest diameter, at its inner end, and the taper preferably is greater than the conventional taper on a Luer slip connection, for example, about 0.07 inch taper per inch to about 0.1 inch taper per inch.
Octagonal end portion 13 is provided with a plurality of internal threads having an outer diameter 70 and an inner diameter 72 with sloping interconnecting wall portions 73 against which projections 60 bear as a locking connection is established between fistula 48 and connector 10.
As may be seen in Fig. 2 and 7j internaI communication between fistula blood tube 56 and sleeve 62 of universal connector 10 is established as projection 60 moves inwardly z~z :
by rotation against thread wall 73; the length of taper sur-face contact between the inner surface 61 of connector 58 and the outer tapered wall 68 of sleeve 62 is determined partially by the location of projection 60 closely adjacent the outer : end of connector 58, as shown, or spaced from that end sur-face. With projection 60 adjacent the end surface of con-nector 58 and tightened into the innerm-ost thread position space still remains between the outer end of sleeve 62 and the - inner end of blood tube 56i by moving projection 60 axially away from the end surface of connector 58 and then tightening :-that projection to the innermost possible locationJ more sealing pressure is exerted on the mating tapered surfaces 61 and 68 ana the length of contact is also extended until, at the maximum, there is contact between the outer end of sleeve 62 and the inner end of blood tube 56. This location for pro-jections 60 is preferred for uses in which the pressure con- ;
templated during use is expected to exceed the approximately -80 mm Hg that is experienced in normal dialysis using a hollow fiber artificial kidney such as the C-DAK artificial kidney availab.le from Cordis Dow Corp. ::
In the alternative non-locking connection use of con-nector 10, the relationship of parts is best seen in Fig. 6.
Teflon connector 47, having an etched outer surface, is pressed into fluid-tight sealing relationship against the ~ .
gradually tapered inner wall 64, 66 of sleeve,62 of connector - 10, preferably into close adjacency with the inner end of blood tube 20, as indicated at 74.
It is to be understood that the positioning of pro-jections 60 on fistula connector 58 is illus~trative only and that this invention contemplates that Teflon connector 47 shown in Fig. 1, 4 and 6 may.be replaced by connector 58, or *Trade Marks .~

its equivalent, when it is desired to attain the positive locking characteristics descrihed above in connection with Figs. 2, 5 and 7 for external arteriovenous shur.ts.

' ~ ;

Claims (4)

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
1. A universal connector having a blood tube connector on one end and universal connector means on the opposite end comprising a first means and a second means for selective connection and disconnection on the inner or outer tapered surface of a common sleeve member with the connector portion of a fistula and of an external arteriovenous shunt, said first means comprising a gradually inwardly end to end tapering internal surface for a press fit connection between mating surfaces on said connector portion and said internal surface, and said second means comprising an outwardly end to end tapering external surface of said first means and a threaded portion encircling a portion of the length of said first means for forming a locking connection between the connector portion of a fistula and an external arteriovenous shunt between mating surfaces on said connector portion and said externally tapered surface on said first means and said threaded portion thereby effecting a selected fluid-tight seal between said connector portion of said fistula and said external arteriovenous shunt and said first and said second means of said universal connector means.
2. A universal connector in accordance with Claim 1 wherein said universal connector comprises a body having a blood passageway therethrough and wherein said first means comprises a sleeve member defining a portion of said passageway, the outer end of which projects from said body, said sleeve member being defined by a wall, said wall having an inner surface which tapers gradually from its largest diameter at its outer end to its smallest diameter at its inner end, and an outer surface which tapers from its smallest diameter at its outer end to its largest diameter at its inner end at a taper substantially greater than the taper on said inner surface, said press fit connection being effected by contact between said tapered inner surface of said sleeve wall and the outer mating surface of the connector of a blood access device selected from the group consisting of a fistula and an external arteriovenous shunt.
3. A universal connector in accordance with Claim 1 wherein said universal connector comprises a body having a blood passageway therethrough and wherein said second means comprises a sleeve member defining a portion of said passage-way, the outer end of sleeve member projecting outwardly beyond said universal connector end of said body and the inner end terminating in adjacency to the inner end of said blood tube connector, said sleeve member having an outer wall portion which tapers from its smallest diameter at its outer end to its largest diameter at its inner end, and a plurality of threads in said body surrounding a portion of the length of said sleeve, the inner diameter of said threads being larger than the diameter of the said tapered outer wall of said sleeve at its inner end, said fluid-tight seal being effected by contact between said tapered outer surface of said sleeve and the inner mating surface of the connector of a blood access device selected from the group consisting of a fistula and an external arteriovenous shunt and said locking connection being effected by pressure contact between said threads and projections extending outwardly from the peripheral surface adjacent the inner end of said connector of said blood access device which effects said fluid-tight seal.
4. A blood tube set comprising a length of blood tubing having attached to at least one end thereof a universal connector comprising a sleeve defined by a wall portion, said wall portion being tapered on its inner surface gradually from end to end from a larger diameter at its outer end to a smaller diameter at its inner end, said wall portion being tapered on its outer surface from end to end inwardly from a smaller to a larger diameter at a degree of taper in excess of the degree of taper on said inner surface, said sleeve selectively forming a press fit connection with said inner tapered surface and a locking connection with said outer tapered surface and the mating surface of the connector portion of a blood access device selected from the group consisting of a fistula and an external arteriovenous shunt.
CA288,405A 1976-10-13 1977-10-11 Connector for attachment of blood tubing to external arteriovenous shunts and fistulas Expired CA1085252A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/731,865 US4133312A (en) 1976-10-13 1976-10-13 Connector for attachment of blood tubing to external arteriovenous shunts and fistulas
US731,865 1976-10-13

Publications (1)

Publication Number Publication Date
CA1085252A true CA1085252A (en) 1980-09-09

Family

ID=24941259

Family Applications (1)

Application Number Title Priority Date Filing Date
CA288,405A Expired CA1085252A (en) 1976-10-13 1977-10-11 Connector for attachment of blood tubing to external arteriovenous shunts and fistulas

Country Status (14)

Country Link
US (1) US4133312A (en)
JP (1) JPS5349897A (en)
AU (1) AU516557B2 (en)
BE (1) BE859641A (en)
CA (1) CA1085252A (en)
CH (1) CH618880A5 (en)
DE (1) DE2745899C3 (en)
DK (1) DK155112C (en)
FR (1) FR2367500A1 (en)
GB (1) GB1580557A (en)
IT (1) IT1090017B (en)
MX (1) MX146956A (en)
NL (1) NL170099C (en)
SE (1) SE433442B (en)

Families Citing this family (158)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1604444A (en) * 1977-09-30 1981-12-09 Raychem Ltd Heatrecoverable articles
JPS54177196U (en) * 1978-06-02 1979-12-14
US4173989A (en) * 1978-06-12 1979-11-13 Prest J David Prest-O-Fit universal adapter fitting
FR2435654A1 (en) * 1978-09-05 1980-04-04 Martelli Louis FITTINGS FOR FLEXIBLE PIPES OR TUBES OF DUCTILE MATERIAL
CA1155725A (en) * 1979-01-23 1983-10-25 T. Michael Dennehey Solution container for continuous ambulatory peritoneal dialysis
US4346703A (en) * 1979-01-23 1982-08-31 Baxter Travenol Laboratories, Inc. Solution container for continuous ambulatory peritoneal dialysis
JPS5599257A (en) * 1979-01-23 1980-07-29 Baxter Travenol Lab Solution vessel for continuous hospital attending peritoneal dialysis
US4639019A (en) * 1979-06-04 1987-01-27 Baxter Travenol Laboratories, Inc. Luer connection
WO1981000053A1 (en) * 1979-07-04 1981-01-22 Travenol Lab Pty Ltd Sterile fluid line coupling members
US4296949A (en) * 1979-08-06 1981-10-27 Abbott Laboratories Rotatable connecting device for I.V. administration set
US4294250A (en) * 1979-12-07 1981-10-13 Baxter Travenol Laboratories, Inc. Luer lock connection device
US4410004A (en) * 1980-04-04 1983-10-18 Oatey Co. Laundry outlet box
US4354490A (en) * 1980-06-09 1982-10-19 Rogers Phillip P Connector for ambulatory dialysis system
US4439188A (en) * 1980-09-15 1984-03-27 Baxter Travenol Laboratories, Inc. Tube connector
US4340148A (en) * 1980-10-14 1982-07-20 Baxter Travenol Laboratories, Inc. Luer cap
US4338933A (en) * 1980-12-22 1982-07-13 Abbott Laboratories Combination quick disconnect coupling and liquid cutoff valve
US4366816A (en) * 1980-12-22 1983-01-04 Abbott Laboratories Combination quick disconnect coupling and fluid cutoff valve
DE3048774C2 (en) 1980-12-23 1984-03-08 B. Braun Melsungen Ag, 3508 Melsungen Catheterization device
DE3050812C2 (en) * 1980-12-23 1985-03-21 B. Braun Melsungen Ag, 3508 Melsungen Catheterization device
US4369781A (en) * 1981-02-11 1983-01-25 Sherwood Medical Industries Inc. Luer connector
US4398757A (en) * 1981-02-18 1983-08-16 Floyd Larry K Laminar flow connector for blood and sterile solutions
DE3114937C2 (en) * 1981-04-13 1985-08-22 Fresenius AG, 6380 Bad Homburg Connection device for medical instruments or lines
US4405158A (en) * 1981-05-26 1983-09-20 Richard Huberman Air filler adapter
US4867745A (en) * 1981-06-08 1989-09-19 The Kendall Company Suprapubic catheter system
SE455470B (en) * 1981-06-23 1988-07-18 Terumo Corp CONNECTING TWO HOSE FOR MEDICAL, THERAPEUTICAL USE HOSE
US4464178A (en) * 1981-11-25 1984-08-07 Dalton Michael J Method and apparatus for administration of fluids
IE54194B1 (en) * 1982-06-30 1989-07-05 Boots Co Plc Medical connector
US4511163A (en) * 1982-07-14 1985-04-16 Mead Johnson & Company Adaptable tip tubing connector
US4452473A (en) * 1982-07-26 1984-06-05 Baxter Travenol Laboratories, Inc. Luer connection system
DE3242238C2 (en) * 1982-11-15 1985-02-14 Peter Dr. März Catheter coupling
DE3325797A1 (en) * 1983-07-16 1985-01-31 Natec Inst Naturwiss Balloon-tipped catheter, especially an endotracheal catheter
GB8420026D0 (en) * 1984-08-07 1984-09-12 Conacher I D Tube connector
US4701159A (en) * 1984-12-05 1987-10-20 I-Flow Corporation Multilumen catheter set
US4679827A (en) * 1984-12-28 1987-07-14 Thomas & Betts Corporation Raintight and oiltight connector for flexible conduit
US4634027A (en) * 1985-01-04 1987-01-06 Mvm Valve Co., Inc. Liquid dispensing apparatus and an anti-drip valve cartridge therefor
US4632671A (en) * 1985-04-12 1986-12-30 Dalton Michael J Conduit anchor adapted to receive stylet
DE3529276A1 (en) * 1985-08-16 1987-02-26 Festo Kg TO EQUIP, IN PARTICULAR, BLOCK- OR PLATE-SHAPED CONNECTING BODIES SUITABLE WITH VALVES OR THE SAME COMPONENTS
JP2690008B2 (en) * 1986-05-01 1997-12-10 宇部興産 株式会社 Artificial blood vessel
US4669755A (en) * 1986-09-29 1987-06-02 The Singer Company Hose connection for vacuum cleaner attachments
US4795197A (en) * 1987-06-29 1989-01-03 Deere & Company Coupling for seed and fertilizer hoses
DE3737665A1 (en) * 1987-11-06 1989-05-18 Joka Kathetertechnik Gmbh Device provided for the connection of pipes or the like
US5354282A (en) * 1990-05-04 1994-10-11 Bierman Steven F Catheter anchoring system
US5578013A (en) * 1989-07-24 1996-11-26 Venetec International, Inc. Catheter anchoring system
US6290676B1 (en) 1989-07-24 2001-09-18 Venetec International, Inc. Catheter anchoring system
US5702371A (en) * 1989-07-24 1997-12-30 Venetec International, Inc. Tube fitting anchoring system
US5456671A (en) * 1989-07-24 1995-10-10 Bierman; Steven F. Catheter anchoring system
US5192273A (en) * 1989-07-24 1993-03-09 Steven F. Bierman Catheterization system
US5314411A (en) * 1989-07-24 1994-05-24 Steven F. Bierman, M.D. Catheterization system with universal retention device and method of use
US5290248A (en) * 1989-07-24 1994-03-01 Steven F. Bierman Sideport connector for catherization system
US5029606A (en) * 1989-12-05 1991-07-09 Kuhlthau Jr Paul W Wall-mounted hook-up assemblies for washing machine and lavatory
DE9004132U1 (en) * 1990-04-10 1990-06-13 Fresenius Ag, 6380 Bad Homburg, De
US5192274A (en) * 1991-05-08 1993-03-09 Bierman Steven F Anchor pad for catheterization system
DE9110460U1 (en) * 1991-08-23 1991-10-10 Fresenius Ag, 6380 Bad Homburg, De
US5399168A (en) * 1991-08-29 1995-03-21 C. R. Bard, Inc. Implantable plural fluid cavity port
US5360407A (en) * 1991-08-29 1994-11-01 C. R. Bard, Inc. Implantable dual access port with tactile ridge for position sensing
DK0681493T3 (en) 1991-12-18 2000-10-23 Icu Medical Inc Medical valve
US5333650A (en) * 1993-03-17 1994-08-02 Flexon Industries Corporation Hose coupling with a stiffening sleeve
US6827705B2 (en) * 1993-03-19 2004-12-07 Venetec International, Inc. Catheter anchoring system
US6786892B2 (en) 1993-03-19 2004-09-07 Venetec International, Inc. Catheter anchoring system
US5833667A (en) * 1993-03-19 1998-11-10 Venetec International, Inc. Catheter anchoring system
US5800402A (en) * 1993-03-19 1998-09-01 Venetec International, Inc. Catheter anchoring system and method of use
US6837875B1 (en) 1993-03-19 2005-01-04 Venetec International, Inc. Catheter anchoring system
IT1268972B1 (en) * 1994-05-27 1997-03-18 T P A Impex Italia Srl Ora T P GRAFT EXTENSION ELEMENT STRUCTURE FOR GAS AND / OR LIQUID FLUID DISTRIBUTION DEVICES
US5470319A (en) 1994-06-20 1995-11-28 Critical Device Corporation Needleless injection site
US5794986A (en) * 1994-09-15 1998-08-18 Infrasonics, Inc. Semi-disposable ventilator breathing circuit tubing with releasable coupling
US5591344A (en) * 1995-02-13 1997-01-07 Aksys, Ltd. Hot water disinfection of dialysis machines, including the extracorporeal circuit thereof
US6044868A (en) * 1995-02-24 2000-04-04 Arlington Industries, Inc. Watertight fitting for flexible non-metallic conduit
US5810781A (en) * 1995-10-24 1998-09-22 Venetec International, Inc. Catheter fitting securement device
US5738663A (en) * 1995-12-15 1998-04-14 Icu Medical, Inc. Medical valve with fluid escape space
US5855568A (en) * 1996-11-22 1999-01-05 Liebel-Flarsheim Company Angiographic syringe and luer connector
US5792104A (en) * 1996-12-10 1998-08-11 Medtronic, Inc. Dual-reservoir vascular access port
US6102884A (en) 1997-02-07 2000-08-15 Squitieri; Rafael Squitieri hemodialysis and vascular access systems
US5957898A (en) 1997-05-20 1999-09-28 Baxter International Inc. Needleless connector
ATE335518T1 (en) 1997-05-20 2006-09-15 Baxter Int NEEDLELESS COUPLING PIECE
US6261255B1 (en) * 1998-11-06 2001-07-17 Ronald Jay Mullis Apparatus for vascular access for chronic hemodialysis
US7316679B2 (en) * 2001-01-22 2008-01-08 Venetec International, Inc. Medical device connector fitting
US7416225B2 (en) * 2001-02-06 2008-08-26 Swagelok Company Fitting for metal pipe and tubing
TW530142B (en) * 2001-02-06 2003-05-01 Swagelok Co Tube fitting for stainless steel tubing
US7407196B2 (en) * 2003-08-06 2008-08-05 Swagelok Company Tube fitting with separable tube gripping device
US7066496B2 (en) * 2001-02-06 2006-06-27 Swagelok Company Fitting with separable gripping device for pipe and tube
CA2437696A1 (en) * 2001-02-06 2002-08-15 Swagelok Company Tube fitting with separable tube gripping ring
US6450542B1 (en) * 2001-06-01 2002-09-17 Mccue David N. Fire hydrant hose adapter
US6581974B1 (en) * 2001-09-29 2003-06-24 Ragner Manufacturing, Llc Pivot adaptor attachment for vacuum cleaners
US8540698B2 (en) * 2004-04-16 2013-09-24 Medrad, Inc. Fluid delivery system including a fluid path set and a check valve connector
US20070161970A1 (en) 2004-04-16 2007-07-12 Medrad, Inc. Fluid Delivery System, Fluid Path Set, and Pressure Isolation Mechanism with Hemodynamic Pressure Dampening Correction
US7611503B2 (en) 2004-04-16 2009-11-03 Medrad, Inc. Fluid delivery system, fluid path set, sterile connector and improved drip chamber and pressure isolation mechanism
US6616194B1 (en) 2001-10-22 2003-09-09 Arlington Industries, Inc. Liquid tight connector
US6908459B2 (en) * 2001-12-07 2005-06-21 Becton, Dickinson And Company Needleless luer access connector
CA2500376A1 (en) 2002-10-01 2004-04-15 Venetec International, Inc. Catheter securement device
US7024968B2 (en) * 2003-03-26 2006-04-11 Boston Scientific Scimed, Inc. Luer lock wrench
US20040260309A1 (en) * 2003-04-04 2004-12-23 Packard Brian M. Introduction apparatus
US7438324B2 (en) * 2003-06-30 2008-10-21 Keiper Michael C Method and components for repairing broken conduit extending from concrete foundations
US20050033269A1 (en) * 2003-08-06 2005-02-10 Kimberly-Clark Worldwide, Inc. Ferrule and enteral tube incorporating a ferrule
US20050033268A1 (en) * 2003-08-06 2005-02-10 Kimberly-Clark Worldwide, Inc. Connector with protrusion adapted for interconnection with second member
US20050137614A1 (en) * 2003-10-08 2005-06-23 Porter Christopher H. System and method for connecting implanted conduits
US7762977B2 (en) * 2003-10-08 2010-07-27 Hemosphere, Inc. Device and method for vascular access
US7784837B2 (en) * 2003-11-03 2010-08-31 Swagelok Company Fitting for metal pipe and tubing
TW200602577A (en) * 2004-04-22 2006-01-16 Swagelok Co Fitting for tube and pipe
US7497483B2 (en) 2004-04-22 2009-03-03 Swagelok Company Fitting for tube and pipe with cartridge
US20060188679A1 (en) * 2005-02-24 2006-08-24 Pedroso Pedro D Fluorinated material for medical devices such as catheters
US7740288B2 (en) 2005-05-09 2010-06-22 Northgate Technologies Inc. High-flow luer lock connector for a luer lock connection
US8585655B2 (en) * 2005-05-23 2013-11-19 Venetec International, Inc. Securement device for I.V. t-connector
DE102005038619A1 (en) 2005-08-16 2007-02-22 Pari GmbH Spezialisten für effektive Inhalation An inhalation therapy device with an ampoule for storing a medicament to be nebulised
EP1988961A4 (en) 2005-09-19 2011-07-27 Medical Device Group Inc Medical tubing securement assembly and methods of use
US10537671B2 (en) 2006-04-14 2020-01-21 Deka Products Limited Partnership Automated control mechanisms in a hemodialysis apparatus
CA2648803C (en) 2006-04-14 2017-06-20 Deka Products Limited Partnership Systems, devices and methods for fluid pumping, heat exchange, thermal sensing, and conductivity sensing
US7967022B2 (en) * 2007-02-27 2011-06-28 Deka Products Limited Partnership Cassette system integrated apparatus
WO2008030375A2 (en) * 2006-09-01 2008-03-13 Swagelok Company Fitting for fluid conduits
US20080128646A1 (en) * 2006-12-05 2008-06-05 Humitek, Inc. Splines and caps for fluid ports
US20090107335A1 (en) 2007-02-27 2009-04-30 Deka Products Limited Partnership Air trap for a medical infusion device
US8042563B2 (en) 2007-02-27 2011-10-25 Deka Products Limited Partnership Cassette system integrated apparatus
US8393690B2 (en) 2007-02-27 2013-03-12 Deka Products Limited Partnership Enclosure for a portable hemodialysis system
MX2009009215A (en) 2007-02-27 2009-12-04 Deka Products Lp Hemodialysis systems and methods.
US8409441B2 (en) 2007-02-27 2013-04-02 Deka Products Limited Partnership Blood treatment systems and methods
US8425471B2 (en) * 2007-02-27 2013-04-23 Deka Products Limited Partnership Reagent supply for a hemodialysis system
US8491184B2 (en) 2007-02-27 2013-07-23 Deka Products Limited Partnership Sensor apparatus systems, devices and methods
US9028691B2 (en) 2007-02-27 2015-05-12 Deka Products Limited Partnership Blood circuit assembly for a hemodialysis system
US8357298B2 (en) 2007-02-27 2013-01-22 Deka Products Limited Partnership Hemodialysis systems and methods
US8562834B2 (en) 2007-02-27 2013-10-22 Deka Products Limited Partnership Modular assembly for a portable hemodialysis system
US9993619B2 (en) 2007-07-17 2018-06-12 C. R. Bard, Inc. Securement system for a medical article
US20100056975A1 (en) * 2008-08-27 2010-03-04 Deka Products Limited Partnership Blood line connector for a medical infusion device
DE102007056462B4 (en) 2007-11-23 2011-10-27 Pari Pharma Gmbh Disposable ampoule for a device for generating aerosols
EP2335753B1 (en) 2008-01-23 2019-08-07 DEKA Products Limited Partnership Fluid line autoconnect apparatus for medical treatment system
US10201647B2 (en) 2008-01-23 2019-02-12 Deka Products Limited Partnership Medical treatment system and methods using a plurality of fluid lines
US11833281B2 (en) 2008-01-23 2023-12-05 Deka Products Limited Partnership Pump cassette and methods for use in medical treatment system using a plurality of fluid lines
ES2574160T3 (en) 2008-03-05 2016-06-15 Cryolife, Inc. Vascular access system
US20110295181A1 (en) 2008-03-05 2011-12-01 Hemosphere, Inc. Implantable and removable customizable body conduit
EP2285290A4 (en) * 2008-06-09 2016-03-30 Childrens Mercy Hospital Tissue retaining system
US10215315B2 (en) 2008-09-05 2019-02-26 Parker-Hannifin Corporation Tube compression fitting and flared fitting used with connection body and method of making same
US20100217179A1 (en) * 2009-02-20 2010-08-26 Baxter International Inc. Bulk delivery peritoneal dialysis system and method
EP2403579A4 (en) 2009-03-04 2012-08-01 Bard Inc C R Catheter securement device
US8057095B2 (en) 2009-04-23 2011-11-15 Medtronic, Inc. Multiple use temperature monitor adapter, system and method of using same
US9731097B2 (en) 2009-10-06 2017-08-15 Venetec International, Inc. Stabilizing device having a locking collet
US9694130B2 (en) 2009-10-06 2017-07-04 Venetec International, Inc. Stabilizing device having a snap clamp
CN104841030B (en) 2009-10-30 2017-10-31 德卡产品有限公司 For the apparatus and method for the disconnection for detecting intravascular access device
US8322091B2 (en) * 2010-02-09 2012-12-04 Atwood Mobile Products, Llc Window frame assembly with integral seals
WO2011109542A1 (en) 2010-03-03 2011-09-09 Venetec International , Inc. Medical article with rotable wings
US9879385B2 (en) 2010-03-26 2018-01-30 Ramin Tabibnia Apparatus and related methods of paving a subsurface
US9284693B2 (en) * 2010-03-26 2016-03-15 Ramin Tabibnia Apparatus and related methods of paving a subsurface
US11628267B2 (en) 2010-08-04 2023-04-18 Medline Industries, Lp Universal medical gas delivery system
US9962524B2 (en) 2011-03-11 2018-05-08 Venetec International, Inc. Medical article securement device
WO2012145683A1 (en) 2011-04-21 2012-10-26 Venetec International, Inc. Anchoring system
SG10201809897VA (en) 2011-05-24 2018-12-28 Deka Products Lp Hemodialysis System
SG195155A1 (en) 2011-05-24 2013-12-30 Deka Products Lp Blood treatment systems and methods
US8777931B2 (en) 2011-08-19 2014-07-15 Alcon Research, Ltd. Retractable luer lock fittings
CA2845635C (en) 2011-09-06 2016-06-07 Hemosphere, Inc. Vascular access system with connector
GB2495492A (en) * 2011-10-10 2013-04-17 Iden Shams Syringe tip with non-luer fitting
US9490619B2 (en) 2012-10-25 2016-11-08 Bridgeport Fittings, Inc. Push-on liquidtight conduit fitting
US10682453B2 (en) 2013-12-20 2020-06-16 Merit Medical Systems, Inc. Vascular access system with reinforcement member
EP3515520B1 (en) * 2016-09-22 2024-03-06 All Vascular Pty Limited Devices and methods for vascular hyperperfusion of extravascular space
EP3537992B1 (en) 2016-11-10 2021-08-18 Merit Medical Systems, Inc. Anchor device for vascular anastomosis
WO2018132573A1 (en) 2017-01-12 2018-07-19 Merit Medical Systems, Inc. Methods and systems for selection and use of connectors between conduits
EP3573682A4 (en) 2017-01-25 2020-11-04 Merit Medical Systems, Inc. Methods and systems for facilitating laminar flow between conduits
WO2018164945A1 (en) 2017-03-06 2018-09-13 Merit Medical Systems, Inc. Vascular access assembly declotting systems and methods
EP3600150B1 (en) 2017-03-24 2023-05-17 Merit Medical Systems, Inc. Subcutaneous vascular assemblies for improving blood flow
EP3651829A4 (en) 2017-07-14 2021-04-21 Merit Medical Systems, Inc. Releasable conduit connectors
US11911585B2 (en) 2017-07-20 2024-02-27 Merit Medical Systems, Inc. Methods and systems for coupling conduits
WO2019089569A1 (en) 2017-10-31 2019-05-09 Merit Medical Systems, Inc. Subcutaneous vascular assemblies for improving blood flow and related devices and methods

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1173718A (en) * 1915-06-23 1916-02-29 Franklin Brass Mfg Company Solder-nipple.
US1793068A (en) * 1930-01-06 1931-02-17 Fairleigh S Dickinson Hypodermic syringe and needle therefor
US2076121A (en) * 1934-02-21 1937-04-06 Fairleigh S Dickinson Hypodermic syringe needle hub
US2880722A (en) * 1953-10-19 1959-04-07 Becton Dickinson Co Coupling
US2870765A (en) * 1955-11-08 1959-01-27 Henderson Edward Hypodermic needle mount
US3344786A (en) * 1963-05-02 1967-10-03 Berg Syringe structure
US3394954A (en) * 1966-05-06 1968-07-30 Sarns Inc Tube coupling for medical appliances
JPS5227277Y2 (en) * 1971-05-21 1977-06-21
US3876234A (en) * 1973-01-11 1975-04-08 Extracorporeal Med Spec Twist-lock connector
US3882862A (en) * 1974-01-11 1975-05-13 Olga Berend Arteriovenous shunt
US3977403A (en) * 1975-02-24 1976-08-31 The Kendall Company Catheter adapter
US3967836A (en) * 1975-04-16 1976-07-06 Izzi Sr Lewis B Offset plastic flange for connecting toilet bowls to drain pipes

Also Published As

Publication number Publication date
FR2367500A1 (en) 1978-05-12
AU2949777A (en) 1979-04-26
DE2745899B2 (en) 1979-10-04
GB1580557A (en) 1980-12-03
SE433442B (en) 1984-05-28
NL170099C (en) 1982-10-01
JPS5349897A (en) 1978-05-06
DE2745899A1 (en) 1978-04-20
DK155112B (en) 1989-02-13
DE2745899C3 (en) 1980-06-26
FR2367500B1 (en) 1984-03-23
MX146956A (en) 1982-09-15
DK453177A (en) 1978-04-14
DK155112C (en) 1989-07-03
BE859641A (en) 1978-04-12
US4133312A (en) 1979-01-09
NL7710475A (en) 1978-04-17
NL170099B (en) 1982-05-03
CH618880A5 (en) 1980-08-29
IT1090017B (en) 1985-06-18
AU516557B2 (en) 1981-06-11
JPS5711662B2 (en) 1982-03-05
SE7711474L (en) 1978-04-14

Similar Documents

Publication Publication Date Title
CA1085252A (en) Connector for attachment of blood tubing to external arteriovenous shunts and fistulas
EP2382005B1 (en) Catheter/fistula needle to bloodline connection assurance system
CA2658700C (en) Fluid connector system
EP0486670B1 (en) Universal connector
EP0171077B1 (en) Catheter introducer device
EP0419620B1 (en) Pre-slit injection site and tapered cannula
US7799015B2 (en) Method for securing a clip to a conduit connection
US4676530A (en) Coupling assembly for use in fluid flow systems
US7875019B2 (en) Connection system for multi-lumen catheter
US5947937A (en) Method and apparatus for prevention of blood-type mismatches
US5098395A (en) Medical connector
US5725511A (en) Method and apparatus for prevention of blood-type mismatches
EP2442863B1 (en) External end device for permanent catheters
JPH0556917B2 (en)
JP2002517292A (en) Safely aligned medical connectors
JP2004523276A (en) Medical device connector fixture
EP2872197A1 (en) Self-centering catheter with anti-occlusion features
CN112752588A (en) Catheter with closed tip and slit for peripheral intravenous catheter assembly
CN211383152U (en) Butterfly type anti-reflux needle-free quick connection indwelling needle
US20020032416A1 (en) Tapered intravenous cannula
CN213220527U (en) Three-way joint for connecting high-pressure-resistant injection type PICC catheter
CA3129968A1 (en) Winged needle set securement
CA3132942A1 (en) Extension set to reduce extension tube kinking
JP2003000726A (en) Connector
GB2075347A (en) Improvements in or relating to catheters

Legal Events

Date Code Title Description
MKEX Expiry