WO2015028879A1 - Drainage catheter with side outlet - Google Patents

Abstract

A drainage catheter system is provided having a hub engagement to a needle coaxially positionable within a catheter. The hub being engaged to an interface having a side outlet for a drainage tube leading to a collection vessel isolates the movement and force of engagement collection vessels from the patient. A needle may be reinserted through the device without removing the drainage tube should repositioning be necessary.

Description

Drainage Catheter with Side Outlet

BACKGROUND OF THE INVENTION

1. Field of the Invention

The invention herein disclosed relates to medical devices for drainage of fluids from a patient during

treatment. More particularly it relates to a centesis catheter device which provides a side outlet for drainage and communication of fluid from the patient subsequent to

communication of the communicating catheter to a drainage site. The side outlet and elongated drainage tube thereby prevents communication of tugging and other motions which frequently are imparted to catheter hubs and the line

communicating into the patient. This enhances patient comfort by eliminating painful movement of the engaged line when accessed for drainage.

2. Prior Art

Background of the Invention:

There are many devices and methods employed by medical professionals to drain excess fluid which accumulates in patients, such as in the case of a pleural effusions. One widely used device and method employs a catheter or tube which is inserted into the patient to communicate with an area of the body with a fluid build-up. Placing the distal end of such a catheter in operative communication with the fluid, may require piercing the chest wall such that the passage running through the drainage tube or catheter may be translated or otherwise positioned in communication with the site of the fluid build up.

For insertion of the catheter through the skin of the patient such as the chest wall, a kit having a needle

operatively engageable with a catheter is employed. The catheter and needle or sheath are normally removed from a protective boot or package. With the catheter engaged with a hub of a needle or sheath, which provide rigidity and form a pathway into the body for the catheter, the catheter engaged with the needle or sheath is communicated into the body.

Conventionally the needle end of the assembly is echo enhanced so that is locatable using ultra sound to help position a distal portion of the catheter in communication with the site determined as needing fluid collection. The catheter is advanced over the needle to be operatively positioned in communication with the fluid pocket, and needle or surrounding sheath is removed from the catheter.

Thereafter, fluid can flow through one or a plurality of apertures of the catheter communicating with an axial passage and out of the body through that axial passage of the

catheter .

Conventionally, fluid collection such as with centesis catheters, is accomplished using a threaded or bayonet luer type attachment on a hub, on the threaded projection

disengaged by the needle. This is accomplished when removing the needle, placing a finger on the aperture in the hub to prevent leakages, and quickly engaging a luer type threaded or bayonet fitting. This engagement operates to temporarily seal an attachment of a drainage catheter to the hub. This, as noted, is accomplished at the hub position vacated by the needle to allow removal of fluid through a fluid pathway formed inline from the engaged catheter or sheath, through the hub. Once properly positioned in many cases the catheter is left in a position communicating through the chest wall or other portion of the patient's body for the term required to remove fluid, or to continually remove fluid.

As can be surmised, the catheter engaged with the

patient's body, can cause initial and long term irritation and pain for the patient. Consequently, the twisting and movement of engaging leur or other fittings for engaging and

disengaging hoses and the like to the hub, in order to

communicate fluid to drainage vessels, also communicates the twisting, and tugging motion directly to the body-engaged catheter .

Further, the drainage hose engaged with the hub attached to the body-engaged catheter, tends to impart a lever-like force to the engaged end of the hub which pulls on the

catheter. Still further, if for some reason a needle needs re-insertion, the drain engaged to the needle position must be disconnected and later reconnected once the subsequent

engagement is finished. All of this engagement and

disengagement to the hub, and communicated movements to the body-engaged catheter in the patient which can be at best, painful for the patient.

As such there exists an unmet need, for a catheter insertion and drainage kit, such as for centesis, which eliminates engagement of the subsequent drainage tubes and fluid collection vessels using a conventional connective contact, such as a leur lock or threaded engagement, directly with the hub engaged to the catheter inserted in the patient. Such a device should provide an easy inline removal path for the needle, once the device is properly positioned in the patient. Further, such a device should immediately seal to prevent fluid from draining on the patient, and the

surroundings and to prevent air ingress into the body cavity.

Additionally, such a device should provide for a remote engagement component for drainage tubes, and suction tubes and the like, which is physically distant from the attachment component engaged to the patient-engaged catheter, to thereby isolate tugging and twisting motions from any communication of force to the patient. Additionally, such a device should allow for reinsertion of a needle if required, without

disconnecting the drainage conduit or catheter. Still

further, such a device should allow for multiple drainage collectors and components and/or engagement of vacuum sources which all easily engage in operative communication, to a remote engagement point from the catheter hub. Finally, such a device with such multiple engagements should provided means for switching between the various engaged drainage collectors and vacuum sources. SUMMARY OF THE INVENTION

The disclosed device herein and the method of use enabled thereby, provide a novel remedy to the problems of

conventional catheter drainage systems noted.

The device, in a favored mode, is provided in an assembly in a sterile fashion sealed in a package and ready for

employment to drain fluids from a patient. A locking catheter hub, is provided with an extending tube or catheter extending on one side, for insertion of the elongated needle

therethrough from the opposite side of the catheter hub.

On the side of the catheter hub opposite that of the extending tube or catheter, is an interface component having an axial passage communicating from a first side of the interface to the opposing side. A side port has an axial conduit also communicating with the axial passage of the interface and to a mount for a first end of a drainage tube or catheter .

The drainage tube or catheter extends a distance to a distal end, from its sealed engagement to the mount on the interface to a fluid collection component. In a preferred mode it has a valve with multiple outlet conduits in sealed engagement with the distal end of the drainage tube. The multi outlet valve allows users to choose any from a plurality of drainage components such as collection bottles, and vacuum sources, which may be placed in a sealed fluid communication with the inserted tube or catheter in the patient, along a fluid flow pathway formed by a sealed communication through the inserted catheter, the locking hub, the interface and side outlet, through the axial passageway of the drainage tube.

On the opposite side of the interface component is engaged a self sealing end cap such as a Tuohy Borst style closure adapter. This sealed cap provides a leak-proof one-use seal once the needle has been translated from the device and has been disengaged from the locking hub which is engaged to the interface.

This novel configuration thus positions all the drainage engagements in a position remote from the hub of the catheter engaged with the patient. Thus subsequent engagement and disengagements are not mechanically transmitted to the

patient-engaged catheter and the pain and discomfort to patients from tugging and twisting and other movements normally transmitted to the hub and patient-engaged catheter are eliminated. The closure adapter may also be formed to allow multiple needle engagements and disengagements if need be, and unlike conventional devices for drainage, the fluid collection drainage tubes need not be disconnected should the needle need reinsertion.

With respect to the above description, before explaining at least one preferred embodiment of the disclosed centesis or drainage catheter having side outlet drainage, it is to be understood that the invention is not limited in its

application to the details of operation nor the arrangement of the components or steps in the method set forth in the

following description or illustrations in the drawings. The various methods of implementation and operation of the disclosed pleural effusion drainage device are capable of other embodiments and of being practiced and carried out in various ways which will be obvious to those skilled in the art once they review this disclosure. Also, it is to be

understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.

Therefore, those skilled in the art will appreciate that the conception upon which this disclosure is based may readily be utilized as a basis for designing of methods and systems for carrying out the several purposes of the present invention which provides for remote engagement of drainage collection components through a side outlet engaged drainage tube.

Therefore, the objects and claims herein should be regarded as including such equivalent construction, steps, and methodology insofar as they do not depart from the spirit and scope of the present invention.

Further objectives of this invention will be brought out in the following part of the specification wherein detailed description is for the purpose of fully disclosing the

invention without placing limitations thereon.

It is an object of this invention to provide a catheter drainage device for removal of fluids from the body of a patient which isolates movements from engaging draining components from the patient.

These together with other objects and advantages which become subsequently apparent reside in the details of the construction and operation of drainage system and method herein as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part thereof, wherein like numerals refer to like parts throughout .

BRIEF DESCRIPTION OF DRAWING FIGURE

Fig.l Depicts the engaged individual components of the device in operative configuration and ready for engagement to a drainage collection device.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE INVENTION

Referring now to the figures 1, the system and device 10 herein disclosed provide a means to drain fluid from

collection points within the body of a patient placed in operative communication with the axial passage of an extending tube or catheter 14. The device 10 shown assembled in figure 1, may be provided as individual assembleable components, or in a favored mode it will be provided in sterile packaging as an assembly such as the device 10 shown in figure 1, ready for employment to drain fluids from a patient.

Shown in the preferred preassembled view of figure 1, locking catheter hub 12 is provide and operatively engaged with an extending tube catheter 14 or tube in a sealed

engagement on a second side 15 An elongated needle 16 is coaxially positioned within the extending catheter 14 in a fashion to allow insertion of the needle 16 and catheter 14 to translate into the body of a patient and to thereby position the distal end of the catheter 14 in operative communication with the site to be drained.

On the first side 17 of the hub 12 opposite that of the extending tube 14 or catheter, is located an interface

component 18 having an axial passage 19 in a sealed engagement with the passage running through the hub 12 from the first side 17 to the second side 15 (not shown) . The axial passage 19 communicates between the first side 21 of the interface 18, engaged with the hub 12, to an opposing side of the interface 18.

A side port 22 has an axial conduit 27 communicating with the axial passage 19 of the interface 18 in a sealed

engagement, and through a mount 24, engageable with a first end of a drainage tube 26 or catheter. The drainage tube 26 or catheter extends a distance to a distal end 28, from its sealed engagement to the mount 24 extending from the interface 18 to a sealed engagement with a fluid collection component, such as a collection bottle (not shown) .

In a particularly preferred mode of the device 10, a valve 30 with multiple outlet conduits 32, which provides a switchable sealed engagement with the distal end 28, of the drainage tube 26. The valve 30 allows users to choose any one from a plurality of drainage components, such a collection bottles, and vacuum sources, which may be placed in a sealed engagement an outlet conduit 32 on the valve 30.

Thus, with the inserted tube or catheter 14 operatively positioned within the patient, a fluid flow pathway 36 formed by a sealed communication through the inserted catheter 14 axial passage of the locking hub 12, the axial passage 19 of the interface 18 through the axial passage of the drainage tube 26 which is engaged to the side outlet 22, and through the switch 30 to a collection site or container.

Particularly preferred and positioned on the opposite side of the interface component 18 from the hub 12, and in a sealed engagement with a self sealing closure adapter 40, such as a Tuohy Borst style closure adapter, forming a leak-proof one-use seal once the needle 16, has been translated from the device 10 through the closure adapter 40 by disengagement of the locking hub 42. A cap may be engaged to the locking hub 42 subsequent to removal of the needle 16.

As noted herein, this novel configuration of the device 10 thus positions all the drainage engagements at the distal end 28 of the drainage tube 26 and thus isolates resulting movements for changing collectors from communication to the body-engaged drainage components. By this placement in a position remote from the hub 12, which is engaged to the patient-inserted catheter 14, the normal forces imparted during changing of components thus are prevented from being communicated to the hub 12 and to the patient through the catheter 14 engaged with their body. It thus significantly increases patient comfort and safety. Also as noted, the closure adapter 40, can be sized or engaged to allow multiple needle 16 engagements and

disengagements through its internal passage 41 communicating through the adapter 40 from an outlet end 47, to the axial passage 19 of the interface 18, and through the passage of the hub 12, if need be. Unlike conventional devices for drainage, the fluid collection drainage tubes 26 need not be

disconnected should a needle 16 need reinsertion to restart flow or otherwise.

While all of the fundamental characteristics and features of the drainage device and method herein have been shown and described herein, with reference to particular embodiments thereof, a latitude of modification, various changes and substitutions are intended in the foregoing disclosure and it will be apparent that in some instances, some features of the invention may be employed without a corresponding use of other features without departing from the scope of the invention as set forth. It should also be understood that various

substitutions, modifications, and variations may be made by those skilled in the art without departing from the spirit or scope of the invention. Consequently, all such modifications and variations and substitutions are included within the scope of the invention as defined by the following claims.

Claims

What is claimed is:

1. A drainage catheter apparatus, comprising:

a hub having a first end and a second end and having an axial passageway communicating therebetween;

said first end of said hub configured for sealed

engagement with an axial passage at a first end of a catheter; said first end of said hub configured for coaxial

removable positioning of a needle within said axial passage of said catheter;

an interface component engaged at a first side to said second end of said hub, said interface component having an axial conduit communicating between said first side to an opposite second side;

a side port having a passage therethrough communicating with said axial conduit of said interface, said side port engageable with a first end of a drainage tube having a drainage passage running therethrough to a distal end;

said distal end of said drainage tube removably

engageable with a fluid collection component;

an adapter engaged on a first side thereof, to said opposite side of said interface component and having a second side, said adapter so engaged, having a passage communicating between said second side with said axial conduit of said interface ;

a locking hub positionable in said passage at said second side to seal it; and

whereby with said drainage catheter apparatus positioned in an as-used position, with a second end of said catheter operatively positioned in communication with fluid within a patient, said fluid is communicable to said collection

component through said drainage tube to a distal end thereof, and force from disengagement and re-engagement of any said collection component is prevented from communication with said catheter and the body of said patient, by said positioning of said collection component at said distal end of said drainage tube .

2. The drainage catheter apparatus of claim 1, additionally comprising :

a valve having an inlet engaged with said distal end of said drainage tube;

said inlet communicating through a switchable conduit with a plurality of outlets; and

each of said outlets engageable with a said collection component, whereby said collection component for said fluid can be changed between any of multiple said collection

components engaged with a respective outlet through a

positioning of said switchable conduit to communicate between said inlet and any one of said outlets.

3. The drainage catheter apparatus of claim 1, additionally comprising :

a needle passageway formed by an inline communication between said passage of said adapter, said axial conduit of said interface to said axial passageway of said hub; and said needle passageway providing a conduit for insertion of a said needle to communicate through said axial passage of said catheter for repositioning said second end of said catheter in said patient without disconnecting said drainage tube providing fluid drainage.

5. The drainage catheter apparatus of claim 2, additionally comprising :

a needle passageway formed by an inline communication between said passage of said adapter, said axial conduit of said interface to said axial passageway of said hub; and

said needle passageway providing a conduit for insertion of a said needle to communicate through said axial passage of said catheter for repositioning said second end of said catheter in said patient without disconnecting said drainage tube providing fluid drainage.

6. The drainage catheter apparatus of claim 1, additionally comprising :

said drainage catheter apparatus being completely assembled and positioned with sterile packaging.