JPS59139271A - Medical connector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

The present invention relates to a novel Lewell lock assembly for use in medical applications, and more particularly in continuous peritoneal dialysis and other medical applications. In the present invention, dialysate is introduced into the patient's peritoneal cavity and remains there for several hours. Allowed to keep '+' and then 'C next G
, is drained from the abdominal cavity of the two affected 1i', and this process causes the parenchyma 11. Continuous peritoneal transfusion repeated in continuous regime 4J7
One way to perform this type of percolation is to connect the dialysate container to the patient's abdominal cavity and connect the dialysate container to the patient's abdomen. Loosen the 11.-zo clamp in the antechamber, and the dialysate will be squeezed into the container.
) Allow the fluid to flow through the peritoneal cavity, then close the tube with a clamp, and let the dialysate flow into the patient's peritoneal cavity for a period of ζ number 11.1, e.g. 4H4? loosening the clamp on the tube and draining the solution from the patient's peritoneal cavity back into the solution container, removing the dialysate container from the catheter tube, and connecting a new dialysate container to the catheter tube; and repeating the aforementioned steps. We have found that if the dialysate container is in the form of a bag, especially a flexible collapsible plastic bag, the aforementioned process can be enhanced so that the patient has greater freedom of movement. discovered. With this method,
Once the dialysate has left the dialysate container, the hang can be folded up and carried by the patient. A highly effective connection and disconnection between the dialysate container and the patient's catheter tubing is achieved by a Leuel locking connector. can do. In this embodiment, the transfer tube with six dialysate hangs extends from one
A catheter tube having a second Luer connector and extending from the patient's abdominal cavity has a complementary Luer locking connector. When no liquid is present, each time a contaminated connection is achieved and maintained around the Luer connector is +7. ! It is obvious that il, 1-7 is true, and this is accomplished by the present invention. The luer locking connector carried by the patient should be of the non-axially permanent type, and the cooperating luer locking connector attached to the tube extending from the droplet container should be of the relatively disposable type. was found to be desirable. Furthermore, the Luer locking connector needs to be robust and leak-proof to prevent 11' staining, which can cause abdominal inflammation. If the 1341i fluid bag has a transfer tube extending from it and the transfer tube is connected to the patient's catheter tube, the fluid in the dialysate hangs.
Transfer channel where the liquid is supported by a transparent liquid bag
In some cases, it may be desirable to prevent water from entering the system. By using a rupturable connector in series with the dialysate bag tubing, flow of dialysate from the transparent 411'' fluid container into the tube can be prevented until the rupturable connector is ruptured.Objectives of the Invention It is an object of the present invention to provide a novel locking connector that maintains the integrity of the connection and eliminates contamination.Another object of the invention is to provide a novel locking connector that maintains the integrity of the connection and eliminates contamination. It is a further object of the present invention to provide a Leuel lock connector device that includes a seal type engagement, thus preventing leakage and maintaining a leak-tight bacteria barrier at the connection point. It is an object of the present invention to provide a luer locking connector in which one of the ml nectars may be relatively permanent and the other luer connector may be disposable.Other objects and advantages of the present invention will become apparent as the description progresses. According to the present invention, an apparatus for continuous peritoneal dialysis is provided in which a solution container is connected to a patient tube communicating with the patient's peritoneal cavity via a flexible tube. The device includes a flexible collapsible plastic dialysate container with a transfer port extending therefrom, a flexible tube extending from the transfer port and a loop attached to the patient tubing. 21 Nirni+ 2. To Kuku 1 concubine 1-
In this example, a breakable member is provided within the flexible tube. Prevent fluid flow, but allow fluid flow after the rupturable member is ruptured.
D. A flexible soil clamp is connected in series to the flexible tube, and a clamp operating at 1., i, i is connected in series to the flexible tube. In an example, the flexible tube is
In its unanchored position, the patient's Chufu Ward is possessed by Ruel Connector 8, 1,000 Ruel for concubine, 1,
It has 12 vectors. This distal] l nectar cone and the Luer connector of the patient tube are +1
Cooperate with / J Runil Locking 2 J Nectart, 11
111 loop upper lock: Made of J nectar. The hiL Luer connector has an axially bore central tubular section that is at least partially surrounded by an outer sheath having a generally circular cross-sectional shape. The outer sheath is threaded on the inside. The female Luer connector includes a main tubular member having an outwardly extending flange near its distal end. This flange is dimensioned to threadably engage the threads on the inside of the outer sheath of the male Luer connector. In one illustrated embodiment, a resilient member is disposed on the female Luer connector and provides a pressure seal-like engagement with the inner wall of the rigid outer sheath of the male connector, and provides a pressure seal-like engagement with the inner wall of the male connector's rigid outer sheath to provide a pressure seal-like engagement with the inner wall of the male connector's rigid outer sheath. It is sized and works to help maintain a water-tight bacteria barrier. Furthermore, the elastic member can be disinfected or the chamber formed by the outer sheath can be filled with disinfectant, which would help prevent contamination of the system. Instead, in the second concrete example illustrated, ll
li['s Rui 1 Nirni J Nectar &: 4. , j. it
The sacrificial body of the nectar may have a wall portion that acts to form a pressure seal-like engagement with the inner wall of the outer sheath. In the illustrative embodiment number 2l-1, this outer wall portion is continuous with the outer surface of the main tubular section 4A and has an outer taper extending into the extraction force. The aspect of the case is k, (
(When the ″ and female connector are screwed together, °
The pressure engagement between the inner wall of the outer sheath and said outer wall portion is enhanced. In the illustrative embodiment of No. 2 No. 1, the male and female Luer IJ7-,:+ connectors are each made of integral single-piece construction, and the female Luer locking connector is of more permanent construction. The male runil 11" connector is constructed from stainless steel or titanium for easy disposal, while the male runil nectar is constructed from a resilient plus-thick material that is easily disposable. Of course, a variety of materials may be used without departing from the scope of the present invention. The words that can be used are the same. The present invention is further described. A detailed description is provided in the following description and claims, and is illustrated in the accompanying drawings. FIG. FIG. 2 is a rear view of a male Luer locking connector constructed in accordance with the principles of the present invention. FIG. 4 is a front view thereof. FIG. 5 is a front view of a female Luer lock connector constructed in accordance with the principles of the present invention. Fig. 6 is a partially cutaway pressure surface view thereof. Fig. 7 is an enlarged view of a portion of the female Luer latch of Fig. 6. FIG. 8 is a partially cutaway front view of the device for capping the female Luer locking connector of FIG. 6; 9 is a partially cutaway view of the device for capping the male Luer locking connector of FIG. 3; FIG. FIG. 10 is a partially cutaway view of another specific example of the Luer locking connector manufactured in accordance with the present invention. FIG. 11 is an enlarged view of the cooperating portions of the female and male Luer lock connectors of FIG. 10; Figure 12 shows the male connector in Figure 3 and -I in Figure 6.
FIG. 3 is a partially sectional front view of the assembled state of the J nectar. Referring to FIG. 1, a dialysate bag 10, a hack 10
Extending from one side 16 of the door openings 2 and 14 are shown to the right. The access port 14 is capped at the injection site 20 in the illustrated embodiment. The container 10 is preferably made of a flexible sheet 1 sealed at its edges to form a solution container.
~ Produced from Zorasti, Evening Moon Phase. Flexible Zorasuna/Cutube 22 is transferred in and out.

12 and connected to the inlet 24 of a particulate filter 26, the outlet 28 of which is manually operated. The tube supports a clamp 32 that is connected to the tube 30, and has a male Luer locking connector 34 at the distal end (connected in series to a three-way sex tube 30). Connected to a female luer lock connector 36 attached to the distal end of an extending patient catheter tube 38. A novel luer lock connection consisting of a male luer lock connector 34 and a female luer lock connector 36. Further details regarding the structure of the system are provided below and
and is illustrated in FIGS. 2 to 9. A breakable member 40 connects transfer port 12 and tube 22.
located in series with the inlet/outlet and the inner bore provided in the tube. Tearable portion 4A40 blocks liquid flow from transfer port 12 to tube 22 until it is ruptured. The breakable member 40 is preferably made of the plastic material that fills the transfer port 12 and the tube 22, but is provided with a central hole passing through the plastic material that is sealed with a breakable member 42. When manually broken, the dialysate contained in the solution bag 10 can flow through the tearable part A40 and thus through the tube 22 and its flow. Second Embodiment
(The dialysate in the cold liquid bag lO is broken (1: rjE
The eggs are held near the transfer entrance 1112 until the 40 is broken, and the 1411 November 40 that can be broken is broken.
The solution contained in the molten liquid 10 cannot flow downstream of the broken part 40. SoilCoo 26 is a granule type filter with a pore size of approximately 5 microns and a relatively large surface area. Preferably, the surface area is at least 4 aA, more preferably about 7 cm. Also, does the filter 26 use a hydrophobic membrane for air flow? It is preferable to consist of (2) and an aqueous filter. The clamp 32 may be any type of flexible tip known in the art, and is preferably a type of clamp that can be attached and detached by hand using a tip, an index finger, and a finger. ] Under certain circumstances, some peritoneal dialysis patients ε4
, l container? It is believed that one would prefer a continuous system for the solution container and patient catheter that does not require needle connector piercing and withdrawal near the v container. Unless the needle connector is used correctly, the needle can generate ljI contamination that can cause peritonitis. It has therefore been discovered that under certain circumstances the use of the Leuel connection system of the present invention is advantageous and achieves connections that are less likely to become contaminated. The male luer 34 is shown in greater detail in FIGS. 2-4Q. Referring to these figures, the male Luer connector 34 includes a central tubular portion 50 with an axial bore 52, and the central tubular portion 50 extends rearwardly to form a circular insertion portion 50a. It is extending. Insertion part 5
an outer sheath 56 which is solvent bonded within the tube 30 and surrounds the central tubular portion 50;
extending outwardly by a plurality of scraps 54 to form a . The outer +I[l+ sheath 56 has a knobby grippable portion 58 and has white inner threads 60. The outer sheath 56 helps prevent contact contamination during attachment and detachment of the Luer locking connection and supports a groove 60 that is engaged by a flange 62 (FIG. 6) provided in the female Luer I nectar; 36. play a role. Referring to FIGS. 5-7, in which the locking connector 36 is shown in detail, the connector 36 has a flange 62 extending radially outwardly near its distal end 66. It is seen to include a main tubular member 64. A hand-held ring 08 surrounds and is preferably formed integrally with the main tubular uE 64, and the ring 68 is adhesively bonded 11' into the lumen of the patient's catheter tube 3B. A rear extension 70 with jaws is also formed integrally with the ring 68. On the outer surface of the ring 68 there is a knurled portion 72 to assist in gripping it. backward extension t
t++ 70 has a plurality of shoulders 74, 1, ζζ ring 68
-1 connected and central tube +++, l
Ei 4 and posterior extension +, t70 are common legs rL
Forms 7G. Sotsunonn [i 2 engages with /, jA's Luel locking connector 34 or female Luel locking connector 36? , when the central tubular portion 5 of the three I nectar 34
0 enters hole 76 and flange 62 is shaped and dimensioned so that it is threaded along thread 60 to form a locking connection. The diameter of the bore 76 varies from the distal end 76 to the central tubular portion 5.
The central tubular member 50 tapers inwardly to a diameter smaller than the outer diameter of the tubular member 64, thereby creating a fit between the central tubular member 50 and the inner wall of the tubular member 64. 6 and 7, the tubular member 64 is provided with a number of projections or rings 78, and a resilient member 80 surrounds the tubular member and overlies the projections 78. The resilient member 80 has an outwardly extending annular bead 82 used for sealing purposes. When the male connector 34 and the female connector 36 are thus engaged, the resilient member 80 penetrates into the outer sheath 56 and the annular bead 82 penetrates the outer sheath 5.
As a result of the engagement with the inner wall of 6, a sealing action will occur. In addition to forming an effective seal to prevent contamination, the elastic material 80G provides an ice-impermeable bacterial barrier (J ], so that the l/
Prevents J dyeing by J1. If desired, the elastic member 80 can be disinfected and formed by the CJ outer sheath 56.
,・＼Patient can fill with sterilant such as hetadine. The female Luer connector 36 is
With the exception of November 130, it is preferably made into a one-piece injection molded structure of J4, and the elastic material A80 is preferably made by CMA, a step after the injection molding process when making the Luer connector. Similarly Q: In this specific example, the overall male Luer connector 34 is medium-.J4. It is preferable to make it into a molded structure. Referring to FIGS. 10 and 11, the female luer lock connector 36 and male luer lock connector 36 are shown, respectively.
A female luer locking connector 202 that is identical to the parts of the nectar 34 and another female luer locking connector 202 with the same reference numerals indicating the parts of the male luer locking Tl nectar 2]0 are now smaller. . Connector 202 includes a main tubular member 64 having an outer, radially extending flange 2 near its distal end.
It appears to include. The tubular member 64 is continuous with a hand graspable ring 204 that extends continuously rearwardly from the main tubular member 64 and is connected to the patient's catheter tube during continuous peritoneal dialysis. A flexible plastic tip, with a barbed rear extension 70 for adhesive connection, for connection into the inner bore of the
・Produced in the body. On the rear outer surface of ring 204,
The bumpy part 7 helps in gripping it by hand.
2 is provided. The rearward extension is connected to the ring 204 and the main tubular member and the rearward extension 70 are provided with a common axial bore 76. The male luer locking connector 11-co I and the lid 210 used for the female luer locking connector 202 shown in FIG.
The front end 211 of the outer sheath 213 or the entire outer sheath 2
It is the same as the male Lukor locking connector 34 shown in FIG. 3, except that 13 is made of a resilient material. This can be accomplished by molding the outer sheath separately and then transferring it to the male Luer connector, or by forming the inner sheath 213 of the desired elastic material. can. Outer wall portion 20 of tilt luer locking connector 202
4 has an outer taper 206 extending rearward, so that the outer nose of the /J luer connector 210 and 213
The 1:1 pressure engagement between the inner wall 212 and the outer wall portion 204 of is enhanced when threadably engaging the male and female connectors. The flange 62 has a male Luer locking connector 210,
#l<11[t When engaged with the Luer locking connector 20 i, the central tubular portion 5 of the connector 210
The inner wall 212 of the outer sheath 213 is shaped and dimensioned so that the flange 62 is threaded along the thread 6o to form a locking connection.
The tapered surface 20 (j) of the outer wall 204 snugly engages, and this engagement becomes tighter when the Luer connector is tightly screwed. If the female Luer locking connector 202 is inserted into the catheter tube extending into the patient's peritoneal cavity, Once connected, it is desirable for the Luer locking connector 202 to be made of a more permanent material; therefore, a stainless steel or titanium connector 202 may be satisfactory. It may be desired to remove the Luer locking connection after it has been introduced into the peritoneal cavity.For this purpose, a cap (Figure 8) is provided to cover the female Luer connector, which is It includes a top portion 92 and a downwardly extending sidewall portion 94 that is identical to the opening formed by the outer sheath 56.
The inner wall of side wall portion 94 has threads 98 of the same size and shape as threads 60 . A central tubular portion 50b is also provided. The bumpy part 100 is 1/fi made by the cap 90.
It is provided to make the i- and iJ functions possible. See No. 91gl: ((1) A cap 10'2 is provided for connecting the male connector to the
, -μ (similar in shape to the Luel connector 36, except that it does not include the tubular connector 70 at the rear of J. The configuration of the female Luel connector 36 ji1%
To represent the component parts of the cap 102 that are the same as the minutes,
The same reference numerals are used for the cap in FIG. Instead of the inner bore 76 extending continuously6. Second, it can be seen that the inner JL76 is capped at its end 104. Also, the male Luer connector; 34 connects to the patient's catheter tube 38;! ], and it should also be possible to connect the female luer locking connector 3 (:) to the end of the tube 30. The outer sheath 56 and the elastic material 80 Results of cooperation - ζ
, and the outer sheath 211 and the outer taper 20 G
As a result of the cooperation of
utilizes a sealed closure that has contact protection and also provides a watertight bacterial barrier when connected, thereby further preventing contamination. Although two examples 8iF- have been illustrated and described, it should be understood by those skilled in the art that various modifications and substitutions may be made without departing from the novel spirit and scope of the invention.

[Brief explanation of the drawing]

Fig. 1 is a front view of the dialysate container for peritoneal dialysis of the present invention, Fig. 2 is a rear view of the male Luer connector, Fig. 3 is its front view, Fig. 4 is its front view, Fig. 5 6 is a front view of the female Luel connector, FIG. 7 is a partially enlarged view of the connector in FIG. 6, FIG. 8 is a front view of the gap of the female Luel connector, and FIG. 9 is a front view of the female Luel connector. is a front view of the cap of a male Luel':1 nectar, FIG. 10 is a front view of another example of a female Luel connector, and FIG. 11 ca.
12 is a partial sectional view of the assembled connector. 10 is a dialysate hanger, 12 is a transfer port, 4° is a breakable member, 22 is a tube, 26 is a filter, 30 is a tube, 32 is a clamp, 34 is a 411 luer connector, 36 is a female luer connector Agent: Patent attorney Takao Akaoka, 50 years old
ri2 FIG, 10 Continued from page 1 Priority claim @April 5, 1979■United States (US)■2
7419

Claims (1)

[Claims] (+) /rli - A Luer connector system comprising a Luer locking connector and a female Luer locking connector in locking relationship, wherein the female Luel locking connector is connected to a main tube. the main tubular portion 4A being proportioned to sealingly receive the male Luer locking connector in the inner bore of the member, the three tubular portions 4A having a radially outwardly extending flange shaped iii) the outer wall of the main tubular portion H is provided with protruding means cooperating to connect the mating threads of the male Luer locking connector into a locked relationship; an annular area spaced from both ends of the lug and also away from the projection means; the female Luer locking connector does not have an integrally connected sleeve surrounding the projection means and the main tubular member;
the male luer locking connector has a central tubular luer portion with an axial fit and protruding in sealing relation into the inner bore of the main tubular member; an outer sheath surrounding both the luer portion and the main tubular member;
The outer sheath has a generally circular cross-sectional shape and an annular free end, a portion of the outer sheath as the mating thread for locking engagement with the flange-shaped protrusion means of the female Luer locking connector. an annular free end of the sheath, the forged inner wall portion being separated from the annular free end of the sheath by a portion of the inner wall of the outer sheath forming an unthreaded annular seal area; A luer locking two-one nectar stem characterized in that the sealing area surrounds an enlarged diameter elastically deformable annular area of said female luer lock connector in annular sole relationship therewith. (2+ +'+ij - 11f The flange-shaped protrusion 1' crotch of the Luer locking connector is a helical thread. (3) i'+ii The annular shape of the outer sheath. The Luel locking connector system of claim 1, wherein the free end is located beyond the central tubular Luel portion such that the free end circumferentially surrounds the entire length of the central tubular Luel portion within the outer sheath. (4) Ruel lock of the first section connected to the channel communicating with the abdominal cavity of the side blue eye: I nectar system. (511i1 ("Rue" 1-) A luer connector 11-: l yctor system consisting of a luer locking connector and a female luer connector in a locking relationship, wherein the female luer connector 11.1 is the main connector. a main tubular member that is proportioned to sealingly accommodate the two luconyl locks in the inner bore of the tubular member;
The upper tube-shaped part has a radially outwardly extending flange-shaped projection "step", and the outer wall C of the main tubular member is
11 Separate from both ends of the tube-shaped 1°71x shrine.
an annular section also spaced from step 17 of the lugs, the annular section having an enlarged diameter for annular engagement with the male connector to form a sealing section; and an integrally connected sleeve surrounding a main tubular member, said male Luer locking connector having an axial bore and said upper tubular opening 1; a luer portion, the male luer locking connector circumferentially surrounding both the central tubular luer portion and the main tubular member and circumferentially surrounding the entire length of the central tubular luer portion therein. an outer sheath located beyond the shaped luer portion, the outer sheath having a generally circular cross-sectional shape and an annular free end, a portion of the outer sheath being connected to the flange-shaped protrusion means of the female luer locking connector; a threaded inner wall portion in locking engagement, said threaded inner wall portion forming an annular sealing area free of threads; spaced from the end, said annular sealing area surrounding said flange-shaped projection 1' stage in annular sealing relation thereto, said outer sheath being made of elastically deformable paulownia wood, said female luer The Ruel locking connector system is characterized in that the locking connector is made of hard abrasive material. (611iii) The Luer locking connector system of paragraph 5, wherein said flange-shaped projection means of the female Luer locking connector comprises a helical thread.
Luer locking connector system. (8) The luer locking connector according to item 5, wherein the female luer locking connector is made of titanium. (9) A luer locking connector system comprising a male luer locking connector and a female luer locking connector in locking relationship, wherein the female luer locking connector is located within the inner bore of the main tubular member. /jf - said main tubular member being proportioned to sealingly receive a Luer locking connector, said tubular member having flange-shaped protrusion means extending radially outwardly, said main tube; The outer wall of the tubular member is shaved from both ends of the tubular member to provide an annular area spaced from the protruding means, the annular area being enlarged into an annular engagement chamber with the male connector to form a sealing area. the female Luer locking connector has an integrally connected sleeve surrounding the annular section and the main tubular member;
The male luer locking connector has a central tubular luer portion having an axial bore and projecting into sealing relation into the inner bore of the main tubular member; an outer sheath surrounding both a luer portion and the main tubular member, the outer sheath having a generally circular cross-sectional shape and an annular free end, a portion of the outer sheath being attached to a flange of the female luer locking connector; said sheath by a portion of said sheath's inner surface forming an annular seal zone 18 free of stripes, comprising a threaded inner wall portion in locking engagement with said protrusion means; spaced from an annular free end, said annular sealing area wrapping said flange-shaped protrusion means in an annular sole relationship thereto; ii The outer pod deforms elastically and i! /Z> +ATel 'M chill, 1111 tl le, :T-)Ii locking] Nectar ε, l hard t (Luer locking 7I incter sostem characterized by being in the lunar phase.