CA1254468A - Chest drainage apparatus - Google Patents
Chest drainage apparatusInfo
- Publication number
- CA1254468A CA1254468A CA000518239A CA518239A CA1254468A CA 1254468 A CA1254468 A CA 1254468A CA 000518239 A CA000518239 A CA 000518239A CA 518239 A CA518239 A CA 518239A CA 1254468 A CA1254468 A CA 1254468A
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- Canada
- Prior art keywords
- inlet
- chamber
- valve
- catheter
- inlet chamber
- 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.)
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Abstract
ABSTRACT OF THE DISCLOSURE
Apparatus for drainage of a body cavity includes a housing body defining an inlet chamber and a discharge chamber, with the former having a catheter mounted to one wall thereof and communicating with the inlet chamber, and a one-way elongated valve of the type disclosed in U.S. Patent No. 3,463,159, and commonly known as the Heimlich valve, in fluid communication between the inlet chamber and the discharge chamber. An inlet port is provided in another wall of the housing body defining the inlet chamber which is adapted to reversibly receive a trocar and enable at least a portion of the trocar to pass through the inlet chamber and the catheter to enable the insertion of the catheter into the body cavity to be drained. In one embodiment, a collar is provided to support the open, inlet end of the sleeve of the one-way valve and a bellows-shaped member is provided to support the collar, valve and is charge chamber in spaced relation to the body housing portion defining the inlet chamber. In another embodiment, the inlet end of the sleeve of the one-way valve is fitted to a port of the inlet chamber housing and, optionally, a band thereover can be heat shrunk thereto. A hydrophobic filter is provided along one wall of the discharge chamber to filter gaseous fluids therefrom. Discharge and suction means can also be provided to the discharge chamber.
Apparatus for drainage of a body cavity includes a housing body defining an inlet chamber and a discharge chamber, with the former having a catheter mounted to one wall thereof and communicating with the inlet chamber, and a one-way elongated valve of the type disclosed in U.S. Patent No. 3,463,159, and commonly known as the Heimlich valve, in fluid communication between the inlet chamber and the discharge chamber. An inlet port is provided in another wall of the housing body defining the inlet chamber which is adapted to reversibly receive a trocar and enable at least a portion of the trocar to pass through the inlet chamber and the catheter to enable the insertion of the catheter into the body cavity to be drained. In one embodiment, a collar is provided to support the open, inlet end of the sleeve of the one-way valve and a bellows-shaped member is provided to support the collar, valve and is charge chamber in spaced relation to the body housing portion defining the inlet chamber. In another embodiment, the inlet end of the sleeve of the one-way valve is fitted to a port of the inlet chamber housing and, optionally, a band thereover can be heat shrunk thereto. A hydrophobic filter is provided along one wall of the discharge chamber to filter gaseous fluids therefrom. Discharge and suction means can also be provided to the discharge chamber.
Description
~2S~
~ URE/PAT:101 Title of In~ention: CHEST DRAINAOE APPARATUS
Technical Field This invention relates generally to catheter apparatus, and more particularly to an improved intrapleural catheter apparatus and combined apparatus for installing the improved ;n~rapleural catheter.
Background Art Catheter apparatus, particularly useful for the drainage of the chest cavity, i.e. the region surrounding the lungs, in the treabment of certain chest injuries, illnesses and in post-operative treatment, was disclosed in U.S. Paten$ No. 3,463,15g. The apparatus disclosed in the patent, commonly known as the Heimlich valve, has been a successful improvement over earlier catheters in providing means for continuous drainage of the chest cavity, while eliminating the need for cumbersome drainage apparatus, particularly apparatus requiring water traps, such as those shown in U.S. Patent Nos. 3,363,626; 3,363,627 and 3,683,913.
While the Heimlich valve is quite useful, it must be used with additional apparatus to insert a catheter into the body cavity to be drained, to connect the catheter to the valve and to provide for discharge of fluids removed from the body cavity from the discharge o~
the valYe. It has been necessary to obtain the additional apparatus, usually from several sources, and to assure the sterility of each of the components to be placed in communication with the body cavity or in the area of the patient's body in which the catheter is to be inserted.
Moreover, while the use of the Heimlich valve permitted rapid emergency treatment and transportation of patients, the additional apparatus frequently restricted the freedom of movement of the patient.
1~5~
URE/PAT: lDl It is therefore an object of the present invention to provide compact, self-contained means for the drainage of a body cavity.
It is another object of the present invention to provide body cav~ty drainage apparatus ;n which a catheter is preassembled to the drainage valYe apparatus, and the entire assembly is llghtweight and portable.
Still another object of the invention is to provide a self-conta;ned sterile kit which can be readily used for drainage of a body cavity.
These and other objects, features and advantages of the present invention will become apparent from the following description when considered in connection with the accompanying drawings.
Disclosure of the Invention In general, the objects and advantages of the present invention are achieved by apparatus for drainage of a body cavity which includes a housing body generally sealed to the ambient a~mosphere except for controlled venting as may be specifically prov`ided, an elongated one-way valve mounted within the housing body, and a catheter supported by the housing body and exte~ding outwardly therefrom. The apparatus thus described is intended to be used with a trocar, as ~ill be hereinafter described. In accordance with the invention, the drainage apparatus and a trocar ~ay be packaged in a sterile package to form a sterile kit for the drainage of a body cavity.
More particularly, the objects and advantages of the present invention are achieved by the following apparatus: A housing body is 1~5 URE/PAT: lo provided having portions which define an inlet chamber and a discharge chamber. The housing body portion defining the inlet chamber includes mounting means for supporting a catheter, preferably an intrapleural catheter, in sealed arrangemen~ with the chamber. The catheter suppor~ed by the mounting means extends outwardly from the inlet chamber and is in fluid communication with th~e chamber. An inlet port is provided in the housing body portion defining the inlet chamber and is adapted ~o reversibly receive a trocar and is positioned to enable at least a portion of the trocar to pass through the inlet chamber and the catheter. The inlet port is adapted to seal the in1et chamber from the ambient atmosphere in the absence or presence of the trocar.
The apparatus includes a one-way elongated valve mounted in the housing body which couples in fluid communication the inlet chamber with the discharge chamber, so as to permit the passage of fluid between the chambers only through the valve. The valve can be substantially as described in Heimlich U.S. Patent No. 3,463,159, and can be formed of a sleeve of substantially resilient fluid-impervious material, for example of latex rubber, or preferably, of urethane or silicone elastomer. The sleeve has ;ts inlet end held open and in communication with the inlet chamber, whi1e its normally c70sed outlet end resides in the discharge chamber. The valve is normally held closed alcng a substantial length of the sleeve by the substantial resilience of the sleeve material, and is adapted to progressively open and close to permit the irreversible passage of drainage material passing therethrough from its inlet end to its outlet end.
~s~
URE/PAT:101 In the use of ~he appara~us of the present invention, a trocar having an external diameter almost as large as the internal diameter of the catheter portion of the apparatus is inserted throu~h the inlet port of the inlet chamber and through the catheter supported by the S mounting means in one wall of the inlet chamber. The trocar end supporting the outermost end of the cha~ber, with the remainder of the apparatus supported by the trocar, is inserted into the body cavity.
Following insertion, the trocar is removed from the catheter, while leaving the end and at least ~he portion of the catheter adjacent thereto in the body cavity, and withdrawing the trocar fro~ at least a substantial portion of the inlet chamber to provide communication from the catheter to the inlet chamber and the one-way valve. Preferably, the trocar is completely removed from the inlet cha~ber and the inlet port, and hence the apparatus, so as to avoid accidental reinsertion of the trocar or manipulation of the apparatus by accidental movement of the trocar. Upon removal of the trocar from the inlet port, the inlet port provides a seal to the ambient atmosphere. Fl~ids and other ma~erials to be drained from the body cavity can now flow through the catheter into the inlet chamber and pass through the one-way elongated valve and into the discharge chamber where it is prevented from reentering the ca$heter and the body cavity by the presence of the one-way valve.
It can be seen that the apparatus of the present invention is most particularly adapted for insertion into the chest cavity in the area of the lungs, for the purpose of draining air and other fluids, as well as blood clots, particles and the like therefrom.
:~Z5 URE/PAT~
The apparatus of the present invention can further include on the exterior surface of the housing body por~ion de~ining the inlet chamber wh;ch includes the mounting means for supporting the catheter, a material which ;s adapted to adhere to the e~terior of ~he body having the body cav;ty to be drained. Most preferably a self-adhesive strip is posit;oned on the described housing body port;on defin;ng the inlet chamber, and has a protective release sheet, which may be removed prior to insertion of the catheter into the body cavity to be drained. Upon insertion of the catheter, the adhesive strip adheres to the skin of ~he patient surrounding the opening formed by the trocar and catheter to support the apparatus thereon and to support he catheter within the body cavity upon the removal of the trocar from the inlet chamber and catheter.
Additionally, or in plàce of the adhesive strip positioned on the housing body portion, tape means can be provided extending from the housing body for releasably securing the apparatus to the skin of the patient adjacent the area in which the catheter of the apparatus is inserted. Preferably, the tape means comprises a plurality of tapes wh;ch are at least part;ally adhes;ve to adhere to the skin of the patient. Alternatively, the tape means can be a plurality of straps optionally with buckles, ~hich can be used to tie or strap the housing body to the patient.
The apparatus of the present invention can be conven;ently formed of relatively few parts by having as the housing body portion defining the inlet chamber a substantially solid body having one or more bores ~z~
URE/PAT: 101 therein forminy the inlet cha~ber. The substantially solid body can be formed of any rigid polymeric ma~erial, for example an acrylic po7ymer of polystyrene. The housing body portion can include a first bore extending therethrough in fluid communication with the catheter and the S inlet port and is adapted to reversibly receive the trocar for passage through the bore from the inlet port to and through the catheter supported by the mounting means and extending outwardly from the inlet chamber. The substantially solid body preferably further includes means for mounting the one-way elongated valve thereto, for example, by having an annular shoulder, preferably of an oval shape, to which the inlet end of the sleeve of the valve can be secured. The substan~ially solid body preferably includes a second bore therein in fluid communication with the ~irst bore and extending to the outside of the body and in fluid communication ~ith the inlet end o~ the sleeve of the one-way valve. Most preferably, the portion of the second bore extending to the outside of the body is surrounded by the annular, preferably oval, shoulder to which the inlet end of the sleeve of the valve is mounted.
The mounting means for supporting the catheter in the housing body portion defining the inlet chamber can simply be a recess of the first bore into which the catheter can be molded, or can comprise a cannula sealingly affixed, for example by an adhesive, such as an epoxy adhesive~ ;nto a recess formed about the end ~f the first bore. The catheter can be sealed to the cannula, for example, through the use of an adhesive, such as an epoxy adhesive, or can be swaged to ~he cannula.
L'~
URE/PAT: 10 The discharge chamber of the apparatus can b~ formed of a molded, open topped, hollow housing body portion defining the chamber. The housing body portion is preferably formed of a polymeric material, such as the material of wh;ch the housing body portion defining the inlet chamber is formed. The several wall se~ments forming the housing body portion defining the discharge chamber preferably is formed with at least one wall, and most preferably the wall which extends from the surface of the housing body portion defining the inlet chamber which includes the mounting means for supporting the catheter, which is angled inwardly at the lower portion thereof, so as to provide clearance between the body of the patient and the wall o~ the discharge chamber. As will be hereafter described, the discharge chamber of the apparatus preferably includes hydrophobic filter means, and by placing the filter means on, and the ports therefor in, the angled wall, clearance is provided between the patient and the ports or vents and filter means. If the wall containing or supporting the filter means and vents or ports is another wall of the discharge chamber, clearance is normally provided between the wall and any clothing or materials placed over the apparatus and the patient, and that wall may or may not be angled as desired.
In another embodiment of the invention, the housing body of the apparatus defining the inlet chamber can be formed of several integral walls and separable walls snap fitted thereto. Particularly, the housing body defining the inlet chamber can be an open-faced enclosure having back, side, top and botto~ walls, and a separable face wall URE/PAT. 101 adapted to be snap fitted to the enclosure in fluid-sealing relat;on.
The face wall can include the mounting means and the catheter supported by the mounting means. The back ~all of the enclosure can include the inlet port, while the bottom wall can define an aperture therein adapted to receive the inlet end of the sleeve of the one way elongated valve. The back, side, top and bottom walls defining the enclosure are preferably integral with each other.
The apparatus in the embodiment preferably is formed with substant;dlly flexible bellows-type means for support;ng the inlet chamber and the discharge chamber in separated relation in which the inlet end of the sleeve of the one-way elongated valve is supported in sealed relation so as to communicate the inlet chamber with the discharge chamber through the valve. The apparatus can further include collar means positioned within the bellows-type means, ~or receiving the inlet end of the sleeve of the one-way valve, which can be turned a~out the collar means, and for sealing the inlet end of the sleeve th~reagainst between the collar means and a portion of the interior surface of the bellows-type means. By having the bellows-type means formed of a resilient material and sized to closely fit the collar means, the turned portion of the sleeve of the valve may be pressed against the collar means and prevent the passage of fluid between the end of the sleeve and the collar means. The collar ~eans can also include on its exterior portion ridges and recesses substantially conforming to the interior surface of the bellows-type means to assist
~ URE/PAT:101 Title of In~ention: CHEST DRAINAOE APPARATUS
Technical Field This invention relates generally to catheter apparatus, and more particularly to an improved intrapleural catheter apparatus and combined apparatus for installing the improved ;n~rapleural catheter.
Background Art Catheter apparatus, particularly useful for the drainage of the chest cavity, i.e. the region surrounding the lungs, in the treabment of certain chest injuries, illnesses and in post-operative treatment, was disclosed in U.S. Paten$ No. 3,463,15g. The apparatus disclosed in the patent, commonly known as the Heimlich valve, has been a successful improvement over earlier catheters in providing means for continuous drainage of the chest cavity, while eliminating the need for cumbersome drainage apparatus, particularly apparatus requiring water traps, such as those shown in U.S. Patent Nos. 3,363,626; 3,363,627 and 3,683,913.
While the Heimlich valve is quite useful, it must be used with additional apparatus to insert a catheter into the body cavity to be drained, to connect the catheter to the valve and to provide for discharge of fluids removed from the body cavity from the discharge o~
the valYe. It has been necessary to obtain the additional apparatus, usually from several sources, and to assure the sterility of each of the components to be placed in communication with the body cavity or in the area of the patient's body in which the catheter is to be inserted.
Moreover, while the use of the Heimlich valve permitted rapid emergency treatment and transportation of patients, the additional apparatus frequently restricted the freedom of movement of the patient.
1~5~
URE/PAT: lDl It is therefore an object of the present invention to provide compact, self-contained means for the drainage of a body cavity.
It is another object of the present invention to provide body cav~ty drainage apparatus ;n which a catheter is preassembled to the drainage valYe apparatus, and the entire assembly is llghtweight and portable.
Still another object of the invention is to provide a self-conta;ned sterile kit which can be readily used for drainage of a body cavity.
These and other objects, features and advantages of the present invention will become apparent from the following description when considered in connection with the accompanying drawings.
Disclosure of the Invention In general, the objects and advantages of the present invention are achieved by apparatus for drainage of a body cavity which includes a housing body generally sealed to the ambient a~mosphere except for controlled venting as may be specifically prov`ided, an elongated one-way valve mounted within the housing body, and a catheter supported by the housing body and exte~ding outwardly therefrom. The apparatus thus described is intended to be used with a trocar, as ~ill be hereinafter described. In accordance with the invention, the drainage apparatus and a trocar ~ay be packaged in a sterile package to form a sterile kit for the drainage of a body cavity.
More particularly, the objects and advantages of the present invention are achieved by the following apparatus: A housing body is 1~5 URE/PAT: lo provided having portions which define an inlet chamber and a discharge chamber. The housing body portion defining the inlet chamber includes mounting means for supporting a catheter, preferably an intrapleural catheter, in sealed arrangemen~ with the chamber. The catheter suppor~ed by the mounting means extends outwardly from the inlet chamber and is in fluid communication with th~e chamber. An inlet port is provided in the housing body portion defining the inlet chamber and is adapted ~o reversibly receive a trocar and is positioned to enable at least a portion of the trocar to pass through the inlet chamber and the catheter. The inlet port is adapted to seal the in1et chamber from the ambient atmosphere in the absence or presence of the trocar.
The apparatus includes a one-way elongated valve mounted in the housing body which couples in fluid communication the inlet chamber with the discharge chamber, so as to permit the passage of fluid between the chambers only through the valve. The valve can be substantially as described in Heimlich U.S. Patent No. 3,463,159, and can be formed of a sleeve of substantially resilient fluid-impervious material, for example of latex rubber, or preferably, of urethane or silicone elastomer. The sleeve has ;ts inlet end held open and in communication with the inlet chamber, whi1e its normally c70sed outlet end resides in the discharge chamber. The valve is normally held closed alcng a substantial length of the sleeve by the substantial resilience of the sleeve material, and is adapted to progressively open and close to permit the irreversible passage of drainage material passing therethrough from its inlet end to its outlet end.
~s~
URE/PAT:101 In the use of ~he appara~us of the present invention, a trocar having an external diameter almost as large as the internal diameter of the catheter portion of the apparatus is inserted throu~h the inlet port of the inlet chamber and through the catheter supported by the S mounting means in one wall of the inlet chamber. The trocar end supporting the outermost end of the cha~ber, with the remainder of the apparatus supported by the trocar, is inserted into the body cavity.
Following insertion, the trocar is removed from the catheter, while leaving the end and at least ~he portion of the catheter adjacent thereto in the body cavity, and withdrawing the trocar fro~ at least a substantial portion of the inlet chamber to provide communication from the catheter to the inlet chamber and the one-way valve. Preferably, the trocar is completely removed from the inlet cha~ber and the inlet port, and hence the apparatus, so as to avoid accidental reinsertion of the trocar or manipulation of the apparatus by accidental movement of the trocar. Upon removal of the trocar from the inlet port, the inlet port provides a seal to the ambient atmosphere. Fl~ids and other ma~erials to be drained from the body cavity can now flow through the catheter into the inlet chamber and pass through the one-way elongated valve and into the discharge chamber where it is prevented from reentering the ca$heter and the body cavity by the presence of the one-way valve.
It can be seen that the apparatus of the present invention is most particularly adapted for insertion into the chest cavity in the area of the lungs, for the purpose of draining air and other fluids, as well as blood clots, particles and the like therefrom.
:~Z5 URE/PAT~
The apparatus of the present invention can further include on the exterior surface of the housing body por~ion de~ining the inlet chamber wh;ch includes the mounting means for supporting the catheter, a material which ;s adapted to adhere to the e~terior of ~he body having the body cav;ty to be drained. Most preferably a self-adhesive strip is posit;oned on the described housing body port;on defin;ng the inlet chamber, and has a protective release sheet, which may be removed prior to insertion of the catheter into the body cavity to be drained. Upon insertion of the catheter, the adhesive strip adheres to the skin of ~he patient surrounding the opening formed by the trocar and catheter to support the apparatus thereon and to support he catheter within the body cavity upon the removal of the trocar from the inlet chamber and catheter.
Additionally, or in plàce of the adhesive strip positioned on the housing body portion, tape means can be provided extending from the housing body for releasably securing the apparatus to the skin of the patient adjacent the area in which the catheter of the apparatus is inserted. Preferably, the tape means comprises a plurality of tapes wh;ch are at least part;ally adhes;ve to adhere to the skin of the patient. Alternatively, the tape means can be a plurality of straps optionally with buckles, ~hich can be used to tie or strap the housing body to the patient.
The apparatus of the present invention can be conven;ently formed of relatively few parts by having as the housing body portion defining the inlet chamber a substantially solid body having one or more bores ~z~
URE/PAT: 101 therein forminy the inlet cha~ber. The substantially solid body can be formed of any rigid polymeric ma~erial, for example an acrylic po7ymer of polystyrene. The housing body portion can include a first bore extending therethrough in fluid communication with the catheter and the S inlet port and is adapted to reversibly receive the trocar for passage through the bore from the inlet port to and through the catheter supported by the mounting means and extending outwardly from the inlet chamber. The substantially solid body preferably further includes means for mounting the one-way elongated valve thereto, for example, by having an annular shoulder, preferably of an oval shape, to which the inlet end of the sleeve of the valve can be secured. The substan~ially solid body preferably includes a second bore therein in fluid communication with the ~irst bore and extending to the outside of the body and in fluid communication ~ith the inlet end o~ the sleeve of the one-way valve. Most preferably, the portion of the second bore extending to the outside of the body is surrounded by the annular, preferably oval, shoulder to which the inlet end of the sleeve of the valve is mounted.
The mounting means for supporting the catheter in the housing body portion defining the inlet chamber can simply be a recess of the first bore into which the catheter can be molded, or can comprise a cannula sealingly affixed, for example by an adhesive, such as an epoxy adhesive~ ;nto a recess formed about the end ~f the first bore. The catheter can be sealed to the cannula, for example, through the use of an adhesive, such as an epoxy adhesive, or can be swaged to ~he cannula.
L'~
URE/PAT: 10 The discharge chamber of the apparatus can b~ formed of a molded, open topped, hollow housing body portion defining the chamber. The housing body portion is preferably formed of a polymeric material, such as the material of wh;ch the housing body portion defining the inlet chamber is formed. The several wall se~ments forming the housing body portion defining the discharge chamber preferably is formed with at least one wall, and most preferably the wall which extends from the surface of the housing body portion defining the inlet chamber which includes the mounting means for supporting the catheter, which is angled inwardly at the lower portion thereof, so as to provide clearance between the body of the patient and the wall o~ the discharge chamber. As will be hereafter described, the discharge chamber of the apparatus preferably includes hydrophobic filter means, and by placing the filter means on, and the ports therefor in, the angled wall, clearance is provided between the patient and the ports or vents and filter means. If the wall containing or supporting the filter means and vents or ports is another wall of the discharge chamber, clearance is normally provided between the wall and any clothing or materials placed over the apparatus and the patient, and that wall may or may not be angled as desired.
In another embodiment of the invention, the housing body of the apparatus defining the inlet chamber can be formed of several integral walls and separable walls snap fitted thereto. Particularly, the housing body defining the inlet chamber can be an open-faced enclosure having back, side, top and botto~ walls, and a separable face wall URE/PAT. 101 adapted to be snap fitted to the enclosure in fluid-sealing relat;on.
The face wall can include the mounting means and the catheter supported by the mounting means. The back ~all of the enclosure can include the inlet port, while the bottom wall can define an aperture therein adapted to receive the inlet end of the sleeve of the one way elongated valve. The back, side, top and bottom walls defining the enclosure are preferably integral with each other.
The apparatus in the embodiment preferably is formed with substant;dlly flexible bellows-type means for support;ng the inlet chamber and the discharge chamber in separated relation in which the inlet end of the sleeve of the one-way elongated valve is supported in sealed relation so as to communicate the inlet chamber with the discharge chamber through the valve. The apparatus can further include collar means positioned within the bellows-type means, ~or receiving the inlet end of the sleeve of the one-way valve, which can be turned a~out the collar means, and for sealing the inlet end of the sleeve th~reagainst between the collar means and a portion of the interior surface of the bellows-type means. By having the bellows-type means formed of a resilient material and sized to closely fit the collar means, the turned portion of the sleeve of the valve may be pressed against the collar means and prevent the passage of fluid between the end of the sleeve and the collar means. The collar ~eans can also include on its exterior portion ridges and recesses substantially conforming to the interior surface of the bellows-type means to assist
2~ in pressing and maintaining the inlet end of the sleeve of the valve turned about the collar means in sealed relation therebetween.
~2~
URE/PAT: 101 The inlet port of the inlet chamber of the apparatus, as in the previously described embodiment, fur~her includes sealing means, including displaceable sealing material, positioned within the inlet chamber, for sealing the apparatus and ~he inlet port against the ambient atmosphere in the absence and upon insertion and withdrawal of a trocar with respect to the inlet chamber and the inlet port. At least a portion of the sealing means can be in axial alignment and in communication with the inlet port and at least a portion of the wall having the mounting means for supporting the catheter extending into the inlet chamber, whereby the portion of the said wall is supported in axial alignment with the inlet port in the absence of and upon withdrawal of a trocar from the inlet chamber.
The discharge chamber of the apparatus preferably includes hydrophobic filter means in communication therewith. The hydrophobic filter means can comprise an elongated filter member mounted along on wall of the discharge chamber, and more preferably, the said wall can be formed with a plurality of ports with the elongated filter member positioned exteriorly of the wall, and the wall additionally including a cover member adapted to ~ightly fit to the wall to support the elongated filter member therebetween. In one form of the apparatus the cover member may include a plurality of ports open to the ambient atmosphere, whereby the discharge chamber is in communication with the ambient atmosphere only through khe filter member. In another embodiment of the invention, the cover member or a wall of the housing can include a port connectable to drainage collection means or to ~s~
URE/PAT: 101 suction means for applying suction to the discharge chamber of the apparatus through the filter member or through the wall. PrefPrably the filter means is positioned above the port, and hence above the expected level of liquid in the discharge chamber, where the port is included.
~rief Description of The Dra~ings -Fig. 1 is a perspective view of apparatus in accordance with the present invention with a trocar inserted into the inlet chamber and the catheter;
Fig. 2 is a partially sectional view of the apparatus shown in Fig. 1 taken along lines 2-2 of Fig. 3, with a trocar inserted;
Fig. 3 is a front elevational view of the apparatus shown in Fig.
1 with a trocar inserted, and Fig. 3A is a rear elevational view of the same apparatus;
Fig. 4 is an exploded, perspective view of the apparatus shown in Figs. 1-3 and Fig. 3A, Fig. 5 is a front elevational view of a kit in accordance with the present invention;
Fig. 6 is a side elevational view of another embodiment of apparatus in accordance with the present invention with a trocar inserted into the inlet chamber and the catheter;
Fig. 7 is a partially sectional side e~eYational view of the apparatus shown in Fig. 6;
Fig. 8 is an exploded, perspective view of the apparatus shown in Figs. 6 and 7;
~5'~
URE/PAT: 101 Fig. 9 is a front elevational view of a kit which includes the apparatus shown in Figs. 6-8;
Fig. 10 is a partially sectional side elevational view sf still another embodiment of the present invention with a trocar inserted in~o the inlet chamber and the catheter;
Fig. 11 is a fragmentary, partially sectional side elevdtîonal view of the apparatus in accGrdance with the present invention including a port for suction and/or drainage of the apparatus; and Fig. 12 is a fragmentaryS partially sectional side elevational view of the apparatus shown in Fig. 11, with drainage collection apparatus.
_ es for Carrying Out the Invention Referring to the drawings, the numeral 10 designated generally intrapleural catheter apparatus in accordance wi-th the present invention. Apparatus 10 includes a housing body 11 defining an inlet chamber 12 and a discharge chamber 13. For illustration purposes, apparatus 10 is shown with a trocar 14, it being understood that trocar 14 need not be considered a part of the apparatus, although it is used ~n connection with ~he apparatus, and is a member of the kit of th~
present invention, as will be hereinafter descri~ed.
In one preferred embodiment, as illustrated in Figs. 1-4, housing body 11 includes first portion 15 defin;ng inlet chamber 12 and a second portion 16 defining discharge chamber 13. In this embodiment, housing body portion 15 comprises a substantially solid body, for ~s~
URE/PAT:101 example, a rigid acrylic polymer. Portion 15 includes d f;rst b~re 17 extending through portion 15. Bore 17 is enlarged at one end to fDrm a recess 18 ;nto which a cannula 19 is sealingly affixed, for example, by an epoxy adhesive. Cannula 19 functions as mounting means for a catheter 20 supported thereby. Catheter 20 is adhesively sealed to cannula 19 so as to firmly support the catheter and prevent the passage of air or other fluids from the outside of housing body 11 to inlet chamber 12.
The other end of bore 17 is enlarged to form a recess 21 which, together with displaceable, flexible sealing material 22 resid;ng in recess 21, constitutes an inlet port through which trocar 14 can be inserted and withdrawn. Sealing material 22 can be a natural latex disc through wh;ch an opening is formed by the insertion o~ the trocar, and which seals itself upon withdrawal of the trocar. Sealing material 22 is held in place by a polymeric disc or washer 23, which is formed of the same material as body portion 15 and is sealed to portion 15 by welding by ultrason;c waves or by an adhesi~e, such as an epoxy adhesive. Preferably, disc or washer 23 is pressure or compressisn sealed to portion 15, which can be obtained, for examp1e by welding washer 23 to portion 15 by ultrasonic waves. Bore 17 may have a tapered, conical shape inwardly of recess 21 so tha~ the end of trocar 14 will be cammed so as to be axially centered in bore 17 upon insertion into the bore.
Housing body pDrtion 15 in this embodiment, further includes an external shoulder 24 extending w;thin hous;ng body 11 abDut which the URE/PAT:101 inlet end of the sleeve of a one-way elongated valve 2S can be secured.
As heretofore noted~ valve 25 can be substantially as described in Heimlich U.S. Patent No. 3,463,159, and can be formed of a sleeve of substantially resilient fluid-impervious material, preferably of 5 urethane or silicone elastomer. Shoulder 24 is preferably an annular shoulder having an oval shape, about which the inlet end of the s1eeve is secured by tightly fitting about the shoulder. Alternatively, a band of heat-shrinkable elastomer (not shown in Figs. 2 and 41 can be placed about the portion of the inlet end of Yalve 25 positioned about shoulder 24 and heat shrunk to hold the inlet end of the valve to the shoulder. In the manner, the inlet end of the sleeve of valve 25 is held open within housing body 16. A second bore 26 is formed in housing body portion 15 which intersects and is in fluid communication with first bore 17 and extends to the outside of body portion 15 so as to be in fluid communication with the inlet end of the sleeve of valve 25. Bore 26 in body portion 15 can be enlarged adjacent its end in communication ~ith valve 25 to facilitate the passage`of fluids from bore 17 to the inlet end of valve 25. In this embodiment, bore 17 and bore 26, toge~her, comprise the inlet chamber of the apparatus heretofore described.
Catheter 20, in this embodiment, is preferably formed of a stainless steel spring as a core 27 covered with an elastomer 28, which preferably is a polyurethane coating molded thereto. The tip 29 preferably is of resilient polymer, such as of urethane or silicone polymer, and is bonded to the end of spring core 27. The end of tip 2g :lZ5 URE/PAT: lo is open to pPrmit the end of trocar 14 to pass therethro~gh. Tip 29 is spaced from the end of coating 28 so as to provide an annular aperture spaced from the end of catheter ?0, i.e., adjacent the tip end thereof, to facilitate assembly of catheter, and the annular aperture is filed with clear adhesive, such as epoxy adhesive. Elastomer covering 28 includes a plurality of ports 30, spaced from each other adjacent filled aperture 27. Following insertion of the catheter into a body cavity to be drained and removal of trocar 14~ the ports 30 in coating 28 permit fluids and other drainage material from the body cavity to pass through the thus exposed coils of core 27 beneath the ports 30, into the interior passage of catheter 20 formerly occupied by trocar 14 and into bores 17 and 26 to the inlet end of the sleeve of one-way valve 25.
Housing body portion 16 (hereafter "housing 16"), defining discharge chamber 13 is a molded, open topped, housing defining the discharge chamber 13. Housing 16 can be Inolded of the same ~aterial as housing body portion 15. As best shown in Fig. 2 one-way elongated valve 25 freely resides within housing 16 which is adapted to receive drainage material passing from the outlet end of the valve. Housing 16 includes an opening or port 31 which is adapted to be closed by a cover 32 supporting an elongated hydrophobic filter 33 which can be affixed to the cover ~ith an adhesive, such as an epoxy adhesive. Cover 32 defines a plurality of ports or vents 34 which permits gaseous fluids, including air, to pass through filter 33 and through vents 34 to the atmosphere. In addition, cover 32 tightly fits to the edges of port ~s~
URE/PAT: 101 31, and can be adhesively affixed thereto, to provide an air-tight seal of the cover t~ the port.
In the embodiment shown, housing 16 is provided with a truncated or angled portion in the area forming port 31, and cover 32 is adapted to assume the angle provided by port 31, to cause a tapered space between the body of the patient and the vents 34 of cover 32 to permit gaseous fluids to escape from discharge chamber 13 when apparatus 10 is installed to the body of the patient. Alternatively, port 31~ and consequently cover 32 and filter 33, can be formed in ano~her portion of housing 16 so that the filter and cover will face in another direction so as not to be blocked by the body of the patient upon installat;on of the apparatus.
Housing body portion 15, and particularly the surface thereof from which catheter 20 extends includes on its ex~erior surface a self adhesive strip 35 which is adapted to adhere to the exterior of the body of the patient having the body cavity to be drained. Adhesive strip 35 is covered by a protective release sheet 36 which is removed prior to insertion of catheter 20 into the body cavity to be drained.
The catheter apparatus thus described can be readily assembled, as part;cularly shown in F;g. 4. In such assembly, the inlet port can be established by inserting sealin~ material 22 into recess 21 and covering the sealing material with disc or washer 23 and pressure sealing the sa~e within recess 21 by welding with ultrasonic waves.
Adhesive strip 35 can be applied to the surface of housing body portion 15 having recess 18, and release sheet 36 can be placed over adhesive ~Z~ 6E3 URE/PAT: lo strip 35. Cannula 19 is fitted within recess 18 and sealed thereto.
Catheter 20 is desirably preformed with co~ering 28 bonded to stainless steel spring core 27, tip 29 bonded to the end of core 27, and the annular space about core 27 between ~he end of covering 28 and tip 29 filled with a clear adhesive, such as an epoxy adhesive w;th its shoulder 29a against the end of core 27. The opposite end of catheter 20 can be inserted into the sealed to cannula 19 as heretofore described. The inlet end of one-way elon~ated valve 25 is fitted to shoulder 24 of body 15, and if desired, sealed thereto by means of heat shrinking a band o~ heat-shrinkable material (not shown) placed about the inlet end of the sleeve of valve 25. Filter 33 can be affixed to cover 32, and cover 32 affixed to port 31 of housing 16 to complete the latter. Housing 16 can then be placed about the sleeve of valve 25 and can be forced upwardly to surround the bottom or a step-shaped shoulder of housing body 15 in a fluid tight manner, or adhesively affixed thereto, to complete the apparatus. Trocar 14 is conveniently provided with a handle 37 which can be molded or affixed thereto with an epoxy adhesive.
Another embodiment of the apparatus o~ the present invention is shown in Figs~ 6-8, in which the same reference numerals have been used for elements which are substanti~lly the same as those in the embodiment illustra~ed in Figs. 1-4.
Apparatus 10 in this embodiment includes an upper housing 40, constituting inlet chamber 12, defined by back wall 41, side walls 42, top wall 43 and bottom wall 44, which are integral with each other. A
~S4~68 URE/PAT: lo face or front wall 45 snap-fits into the front of the opening formed by side walls 42, top wall 43, and bottom wall 44 to complete inlet ~chamber 12.
Face wall 45 of inlet chamber 12 includes an aperture formed therein surrounded by a thickened portion 46 having an annular, outwardly facing recess 47 which serves as mounting means for the catheter 20, portion 46 extending inwardly of wall 45. Catheter 20 is mounted in the recess 47 of portion 46 and extends outwardly from wall 45. Catheter 20 has an outer end 48 having a trocar receiving aperture 49 and fluid receiving ports 50. Catheter 20 extend outwardly o~ wall 45 a sufficient distance so as to permit the outer end 48 and ports 50 to be positioned in a body cavity to be drained. Portion 46 includes an opening port 51 (Fig. 7) communicating with the interior of inlet chamber 12 and arranged to permit fluids and materials drained from the body cavity by the catheter 20 to enter inlet chamber 12.
Back wall 41 includes thickened portion 52 which defines the inlet port for trocar 14. Portion 52 extends interiorly of the inlet chamber, with an annular portion 53 thereof extending concentrically with the path of trocar 14. Annular portion 53 is formed by an annular shoulder 53a integral with wall 45, and a cylindrical insert 53b of which fits snugly within shoulder 53a in a fluid-sealed relation, as best shown in Fig. 8. Annular portion 53 includes an annular recess 53c adapted to support sealing material 22 for sealing the inlet port as described. The inlet port is axially aligned with the aperture in portion 46 of wall 45 and the path of trocar 14 to permit the tubular ~5 URE/PAT: lo portion of trocar 14 to progressively and smoothly, reversibly pass through the inlet ~ort, the aperture in portion 46 and catheter 20.
Portion 46 of wall 45 extends into annular recess 53c of portion 53, although it does not contact the walls of ~he recess for ease of assembly of face wall 45 to integral walls 41-44. Flexible sealing material 22, encircled by recess 53c, serves as ~he sealing means described above for sealing the inlet port in the absence of trocar 14 and for sealing the inlet port to trocar 14 when the latter is present therein or during its passage through or withdrawal from chamber 12.
Sealing material 22 further functions to seal portion 46 at its extension into recess 53c.
Bottom wall 44 includes an aperture 54 formed therein and an annular, outwardly extending and depending integral L-shaped flange 55.
Suspended beneath bottom wall 44 by a substantially flexible bellows-shaped member 56, is discharge chamber 13 separated from inlet chamber 12. Discharge chamber 13 is defined by an upwardly open housing 16 as in the previously described embodiment. A collar 57 is positioned w1thin bel10ws-shaped member 56 beneath and separated form bottom wall 44. Collar 57 is formed with a vertical aperture adapted to receive the upper, open end of a one-way elongated valve 25 which extends into housing 16 forming discharge chamber 13. The aperture and the upper portion of collar 57 which comprises a raised shoulder 58 is formed substantially to the shape of the upper, open end of valve 25, which is turned about should 58. The bellows-shaped member 46 is formed of a resilient material and is sized to closely fit the exterior URE/PAT: 101 sides of collar 57 and its shoulder 58. In addition, bellows-shaped member 56 is formed and shaped to closely fit to flange 55 of bottom wall 44 so as to ma;ntain a firmt but flexible spaced relatisn between collar 57 and bottom wall 44 and maintain a sealed relation S therebetween with respect to ~he ambient atmosphere. Collar 57 includes on its exterior portion ridges 59 and recesses 60 conforming to the interior sur~ace of bellows-shaped member 56 to assist in press;ng and maintaining the aforesaid spaced and sealed relation.
As hereto~ore described, housing 16 includes a wall formed with at least one port 31. Housing 16, as best shown in Fig. 8, includes a wall which is elongated and defines a plurality of the ports 31 which in this embodiment extend outwardly from housing 16. An elongated hydrophobic filter 33 is positioned against the portion of the wall which defines ports 31. A cover 32 defines a plurality of events 34 positioned along the elongated sides of member 32. Cover 32 is adapted to tightly fit to the exterior of the wall and supports ~ilter 33 therebetween. In addition, filter 33 is heatsealed to the wall to prevent ~he discharge of gaseous fluids ~rom dischar~e chamber 13, except through filter 33 and vents 34.
As in the preYiously describe~ embodiment, housing body 11, and particularly wall 45 defining inlet chamber 12 includes on its exterior surface, a self~adhesive strip 35 covered by protective release sheet 36 which is removed prior to insertion of the catheter into the bvdy cavity to be drained.
4~
URE/PAT:101 The catheter apparatus thus described can be readily assembled, as particularly shown in Fig. 8. In such assembly, the normally open end of the elongated one-way valve 25 can be inserted through the aperture in collar 57 and turned about should 58 as shown by the pa~h designated by arrows 61. Bellows-shaped member 56 can be slipped upwardly about valve 25 and positioned with its lower portion surrounding and holding collar 57 and the portion of valve 25 ~hich is turned about shpulder 5B
of the collar. In this position, bellows-shaped member 56 maintains valve 25 and collar 57 in fluid sealed relation to each o~her so tha~
fluid materials will pass only through the valve. Bellows-shaped member 56 can then be placed about flange 55 of the bottom wall 44 of the upper housing 40 as shown by the path designated by arrows 62 to establish a spaced apart relation between the upper housing 40 defining inlet chamber 12 and valve 25 in collar 57. The inlet port can next be established by inserting insert 53b with sealing material 22 residing in recess 53c into the aperture defend by the cylindrical shoulder 53a.
Wall 45 is snap fitted to the opening in housing 40 formed by walls 41-44~ with a portion of thickened portion 46 extending into recess 53c and contacting sealing material 22. Adhesive strip 35 can be applied to wall 45 and release sheet 46 in turn applied thereto, ~r the adhesive strip and the release sheet can be applied to wall 45 prior to its assembly to form the inlet chamber. Oatheter 20 can be mounted to wall 45 through an aperture in release sheet 36 and adhesive strip 35 to complete the assembly of the upper portion of the apparatus. Filter 33 can be applied to cover 32 and heat sealed thereto if desired, and ~S4~6 URE/PAT: lo cover 32 applied to port 31 in housing 30 to assemble discharge chamber 13. Finally, housing portion 16 defining the said chamber can be forced upwardly to surround the bottom of bellows-shaped member 56 to complete the assembly of the apparatus.
The present invention includes the provision of a sterile kit particularly adapted for the drainage of a body cavity. As best shown in Figs. ~ and 9, the sterile kit comprises a sealed package, such as a backing card 63 and transparent covering filln 64 defining a sterile interior. Positioned therebetween in the sterile interior of the package are an intrapleural catheter apparatus 10 in accordance with the present invention and a trocar 14 including a handle 37. It is oontemplated that both catheter apparatus 10 and trocar 14 are maintained in a sterile condition prior to packaging in the sterile kit9 and that the kit can-be conveniently asse~bled under sterile conditions by positioning apparatus 10 and trocar 14 on card 63.
Following asse~bly, the kit remains sterile until ~ 64 is pierced or removed.
The utilization oF the apparatus of the present inven~ion will now be described. If the catheter apparatus 10 is supplied in the sterile kit, the apparatus is removed form the kit under sterile conditions.
The trocar, being handled by its handle 37 is inserted through the inlet port of housing body 11 so that its end opposite handle 37 passes through inlet chamber 12 and catheter 20. As shown in Figs. 1-3, 6 and 7, catheter 20 will be straightened and aligned by trocar 14 passing therethrough. With the end of trocar 14 opposite handle 37 extending URE/PAT: 101 through and beyond the end of catheter 20, the release sheet 36 is removed form the adhesive strip 35, and the end of trocar 14 is ;nserted into the body of the patien~ through the skin and underlying tissue into the body cav;ty to be dra;ned. ~pon ~ull insertion of trocar 14 and catheter 20 therewith into the body cavity, sel~-adhesive strip 35 will adhere to the skin of the patient to ma;ntain the catheter apparatus in place. Therea~ter trocar 14 can be withdrawn by manipulation of handle 37. Upon withdrawal of trocar 14 from inlet chamber 12, the inlet por~ is sealed by sealing material 22. Fluid and other material from the body cavi~y to be drained can now pass through the aperture and/or ports 30, 50 of catheter 20 and pass therefrom through into inlet chamber 12 and the open end of valve 25. As theretofore described, fluids can progressively pass through valve 25 into discharge chamber 13. Gases, particularly air, are vented ~rom discharge chamber 13 through hydrophobic filter member 33 and out through Yents 34 formed in cover 32.
The apparatus of the present inven~ion can include an additional one-way valve, as illustrated in Fig. lO. The apparatus there shown is, in all major respects, identical to the apparatus in Figs. 1-4, and like re~erence numerals have been utilized for simllar elements.
Additionally, a second one-way va~ve 65 is mounted to housing body portion 15 so as to be positioned between and in fluid communication with inlet chamber 12 and the inlet end of the sleeve of one-way elongated valve 25. As shown in the drawing, one-way valve 65 can be a duck-bill valve~ such as those commercially available from Vernay Co., ~2~ 8 UREiPA~:101 and particularly a duck bill valve with a molded lip at its upper end.
Yalve 65 can be adhesively aff;xed to a disc or washer 66 of polymeric material, preferably the same material as body portion 15, and the subassembly of valve 65 and washer 66 adhesive-ly sealed to the bottom of housin~ body 15 with the exposed lip of valve 65 fitting within the enlarged recess of bore 26. The outer annular perimeter of washer 66 preferably has substantially the same dia~eter as shoulder 24, ~o that upon assembly washer 66 becomes an extension of housing body 15 and shoulder 24. The open inlet end of valve 25 can be placed about washer 66 and shoulder 24, and thereafter `a ring or band of rubber or heat shrinkable material 67 can be placed about the open, inlet end of the sleeve of valve 25, and if the latter, heat shrunk, to firmly affix and seal valve 25 to should 24. The utilization of second valve 65 in conjunction with the apparatus of the prevent invention further enhances the utility of the apparatus to prevent ~he back flow of material if any material should remain in the inlet end of the sleeve of valve 25 or if any material should move in the reverse direction through valve 25.
The apparatus of the present invention can also include a port 68, which can be in the form of a n;pple as shDwn in Fig. 1I for the purpose of applying suction or for drain;ng discharge chamber 13. In providing port 68, it is preferable to modify housing body 11, and particularly housing 30 by moving the hydrophobic filter 33 and the cover 32 to another wall of housiny 30 between the location of port 68 Z5 and the housing body 15 or upper housing 40 of the apparatus as shown.
~5~4 URE/PAT: lo Port 31 is then closed by a solid wall which is sealed thereto as shown in the dra~ing. Furthermore, port 68 can be formed in cover 32, so that suction can be applied to discharge chamber 13 through filter 33, and thereby facilitate the drainage of fluids, and perm;t the dra;nage of small amounts of other materials such as small pieces of t;ssue, through the catheter apparatus in the same manner as fluids.
The apparatus of the present 1nvention including port 68, can be utilized to collect drainage from the body cavity being dra;ned,- as illustrated Fig. 12. As shown, a conduit 69 is provided fitted or coupled to port 68 at one end and to drainage collection apparatus 70, at its o~her end. Apparatus 70 can comprise a firs~ rotatable disc 71 having a tube 72 passing therethrough and extending upwardly to which conduit 69 is coupled. A seco~d disc 73 is rotatably mounted to disc 71 by means of a fastener, such as rivet 74. Disc 73 has a plurality of tubes 75 circumferentially spaced about disc 73 which are each connected to a valve 76 and the valve in turn connected to drainage receptacles such as bags 77~ which may be initially rolled, as shown.
As tubes 75 are circumfer4ntially spaced in disc 73 at the same radius from ~he center as tube 72 is spaced form the center of disc 71, each of tubes 75, and hence valves 76, and collection receptacles 77 can be selectively spaced under and in communication with tube 72 upon rotation of disc 73. In this manner, each of collection bags 77 can be sequentially filled with drainage material, and can be removed upon closing of the respective valve 76 for analysis of the material, or for disposal, or for another purpose.
3L~:59L 468 UR~/PAT: 101 Alternatively, to provide drainage collection apparatus, a known collect;on device, such as the medical suction dev;ce described in ~S.
Patent No. 4,404,924 can be connected to port 68 to provide collection of the dra;na~e material from discharge chamber 13 of the present apparatus as well as remote indication of the suction being appl;ed to the apparatus.
Various changes coming wi~hin the spirit of the invention may suggest themselves to those skilled in the art; hence, the invention is not limited to the specific embodiments shown or descnibed and uses men~ioned, but the same is intended to be merely exemplary, the scope o~ the invention beiny limited only by the appended claims.
~2~
URE/PAT: 101 The inlet port of the inlet chamber of the apparatus, as in the previously described embodiment, fur~her includes sealing means, including displaceable sealing material, positioned within the inlet chamber, for sealing the apparatus and ~he inlet port against the ambient atmosphere in the absence and upon insertion and withdrawal of a trocar with respect to the inlet chamber and the inlet port. At least a portion of the sealing means can be in axial alignment and in communication with the inlet port and at least a portion of the wall having the mounting means for supporting the catheter extending into the inlet chamber, whereby the portion of the said wall is supported in axial alignment with the inlet port in the absence of and upon withdrawal of a trocar from the inlet chamber.
The discharge chamber of the apparatus preferably includes hydrophobic filter means in communication therewith. The hydrophobic filter means can comprise an elongated filter member mounted along on wall of the discharge chamber, and more preferably, the said wall can be formed with a plurality of ports with the elongated filter member positioned exteriorly of the wall, and the wall additionally including a cover member adapted to ~ightly fit to the wall to support the elongated filter member therebetween. In one form of the apparatus the cover member may include a plurality of ports open to the ambient atmosphere, whereby the discharge chamber is in communication with the ambient atmosphere only through khe filter member. In another embodiment of the invention, the cover member or a wall of the housing can include a port connectable to drainage collection means or to ~s~
URE/PAT: 101 suction means for applying suction to the discharge chamber of the apparatus through the filter member or through the wall. PrefPrably the filter means is positioned above the port, and hence above the expected level of liquid in the discharge chamber, where the port is included.
~rief Description of The Dra~ings -Fig. 1 is a perspective view of apparatus in accordance with the present invention with a trocar inserted into the inlet chamber and the catheter;
Fig. 2 is a partially sectional view of the apparatus shown in Fig. 1 taken along lines 2-2 of Fig. 3, with a trocar inserted;
Fig. 3 is a front elevational view of the apparatus shown in Fig.
1 with a trocar inserted, and Fig. 3A is a rear elevational view of the same apparatus;
Fig. 4 is an exploded, perspective view of the apparatus shown in Figs. 1-3 and Fig. 3A, Fig. 5 is a front elevational view of a kit in accordance with the present invention;
Fig. 6 is a side elevational view of another embodiment of apparatus in accordance with the present invention with a trocar inserted into the inlet chamber and the catheter;
Fig. 7 is a partially sectional side e~eYational view of the apparatus shown in Fig. 6;
Fig. 8 is an exploded, perspective view of the apparatus shown in Figs. 6 and 7;
~5'~
URE/PAT: 101 Fig. 9 is a front elevational view of a kit which includes the apparatus shown in Figs. 6-8;
Fig. 10 is a partially sectional side elevational view sf still another embodiment of the present invention with a trocar inserted in~o the inlet chamber and the catheter;
Fig. 11 is a fragmentary, partially sectional side elevdtîonal view of the apparatus in accGrdance with the present invention including a port for suction and/or drainage of the apparatus; and Fig. 12 is a fragmentaryS partially sectional side elevational view of the apparatus shown in Fig. 11, with drainage collection apparatus.
_ es for Carrying Out the Invention Referring to the drawings, the numeral 10 designated generally intrapleural catheter apparatus in accordance wi-th the present invention. Apparatus 10 includes a housing body 11 defining an inlet chamber 12 and a discharge chamber 13. For illustration purposes, apparatus 10 is shown with a trocar 14, it being understood that trocar 14 need not be considered a part of the apparatus, although it is used ~n connection with ~he apparatus, and is a member of the kit of th~
present invention, as will be hereinafter descri~ed.
In one preferred embodiment, as illustrated in Figs. 1-4, housing body 11 includes first portion 15 defin;ng inlet chamber 12 and a second portion 16 defining discharge chamber 13. In this embodiment, housing body portion 15 comprises a substantially solid body, for ~s~
URE/PAT:101 example, a rigid acrylic polymer. Portion 15 includes d f;rst b~re 17 extending through portion 15. Bore 17 is enlarged at one end to fDrm a recess 18 ;nto which a cannula 19 is sealingly affixed, for example, by an epoxy adhesive. Cannula 19 functions as mounting means for a catheter 20 supported thereby. Catheter 20 is adhesively sealed to cannula 19 so as to firmly support the catheter and prevent the passage of air or other fluids from the outside of housing body 11 to inlet chamber 12.
The other end of bore 17 is enlarged to form a recess 21 which, together with displaceable, flexible sealing material 22 resid;ng in recess 21, constitutes an inlet port through which trocar 14 can be inserted and withdrawn. Sealing material 22 can be a natural latex disc through wh;ch an opening is formed by the insertion o~ the trocar, and which seals itself upon withdrawal of the trocar. Sealing material 22 is held in place by a polymeric disc or washer 23, which is formed of the same material as body portion 15 and is sealed to portion 15 by welding by ultrason;c waves or by an adhesi~e, such as an epoxy adhesive. Preferably, disc or washer 23 is pressure or compressisn sealed to portion 15, which can be obtained, for examp1e by welding washer 23 to portion 15 by ultrasonic waves. Bore 17 may have a tapered, conical shape inwardly of recess 21 so tha~ the end of trocar 14 will be cammed so as to be axially centered in bore 17 upon insertion into the bore.
Housing body pDrtion 15 in this embodiment, further includes an external shoulder 24 extending w;thin hous;ng body 11 abDut which the URE/PAT:101 inlet end of the sleeve of a one-way elongated valve 2S can be secured.
As heretofore noted~ valve 25 can be substantially as described in Heimlich U.S. Patent No. 3,463,159, and can be formed of a sleeve of substantially resilient fluid-impervious material, preferably of 5 urethane or silicone elastomer. Shoulder 24 is preferably an annular shoulder having an oval shape, about which the inlet end of the s1eeve is secured by tightly fitting about the shoulder. Alternatively, a band of heat-shrinkable elastomer (not shown in Figs. 2 and 41 can be placed about the portion of the inlet end of Yalve 25 positioned about shoulder 24 and heat shrunk to hold the inlet end of the valve to the shoulder. In the manner, the inlet end of the sleeve of valve 25 is held open within housing body 16. A second bore 26 is formed in housing body portion 15 which intersects and is in fluid communication with first bore 17 and extends to the outside of body portion 15 so as to be in fluid communication with the inlet end of the sleeve of valve 25. Bore 26 in body portion 15 can be enlarged adjacent its end in communication ~ith valve 25 to facilitate the passage`of fluids from bore 17 to the inlet end of valve 25. In this embodiment, bore 17 and bore 26, toge~her, comprise the inlet chamber of the apparatus heretofore described.
Catheter 20, in this embodiment, is preferably formed of a stainless steel spring as a core 27 covered with an elastomer 28, which preferably is a polyurethane coating molded thereto. The tip 29 preferably is of resilient polymer, such as of urethane or silicone polymer, and is bonded to the end of spring core 27. The end of tip 2g :lZ5 URE/PAT: lo is open to pPrmit the end of trocar 14 to pass therethro~gh. Tip 29 is spaced from the end of coating 28 so as to provide an annular aperture spaced from the end of catheter ?0, i.e., adjacent the tip end thereof, to facilitate assembly of catheter, and the annular aperture is filed with clear adhesive, such as epoxy adhesive. Elastomer covering 28 includes a plurality of ports 30, spaced from each other adjacent filled aperture 27. Following insertion of the catheter into a body cavity to be drained and removal of trocar 14~ the ports 30 in coating 28 permit fluids and other drainage material from the body cavity to pass through the thus exposed coils of core 27 beneath the ports 30, into the interior passage of catheter 20 formerly occupied by trocar 14 and into bores 17 and 26 to the inlet end of the sleeve of one-way valve 25.
Housing body portion 16 (hereafter "housing 16"), defining discharge chamber 13 is a molded, open topped, housing defining the discharge chamber 13. Housing 16 can be Inolded of the same ~aterial as housing body portion 15. As best shown in Fig. 2 one-way elongated valve 25 freely resides within housing 16 which is adapted to receive drainage material passing from the outlet end of the valve. Housing 16 includes an opening or port 31 which is adapted to be closed by a cover 32 supporting an elongated hydrophobic filter 33 which can be affixed to the cover ~ith an adhesive, such as an epoxy adhesive. Cover 32 defines a plurality of ports or vents 34 which permits gaseous fluids, including air, to pass through filter 33 and through vents 34 to the atmosphere. In addition, cover 32 tightly fits to the edges of port ~s~
URE/PAT: 101 31, and can be adhesively affixed thereto, to provide an air-tight seal of the cover t~ the port.
In the embodiment shown, housing 16 is provided with a truncated or angled portion in the area forming port 31, and cover 32 is adapted to assume the angle provided by port 31, to cause a tapered space between the body of the patient and the vents 34 of cover 32 to permit gaseous fluids to escape from discharge chamber 13 when apparatus 10 is installed to the body of the patient. Alternatively, port 31~ and consequently cover 32 and filter 33, can be formed in ano~her portion of housing 16 so that the filter and cover will face in another direction so as not to be blocked by the body of the patient upon installat;on of the apparatus.
Housing body portion 15, and particularly the surface thereof from which catheter 20 extends includes on its ex~erior surface a self adhesive strip 35 which is adapted to adhere to the exterior of the body of the patient having the body cavity to be drained. Adhesive strip 35 is covered by a protective release sheet 36 which is removed prior to insertion of catheter 20 into the body cavity to be drained.
The catheter apparatus thus described can be readily assembled, as part;cularly shown in F;g. 4. In such assembly, the inlet port can be established by inserting sealin~ material 22 into recess 21 and covering the sealing material with disc or washer 23 and pressure sealing the sa~e within recess 21 by welding with ultrasonic waves.
Adhesive strip 35 can be applied to the surface of housing body portion 15 having recess 18, and release sheet 36 can be placed over adhesive ~Z~ 6E3 URE/PAT: lo strip 35. Cannula 19 is fitted within recess 18 and sealed thereto.
Catheter 20 is desirably preformed with co~ering 28 bonded to stainless steel spring core 27, tip 29 bonded to the end of core 27, and the annular space about core 27 between ~he end of covering 28 and tip 29 filled with a clear adhesive, such as an epoxy adhesive w;th its shoulder 29a against the end of core 27. The opposite end of catheter 20 can be inserted into the sealed to cannula 19 as heretofore described. The inlet end of one-way elon~ated valve 25 is fitted to shoulder 24 of body 15, and if desired, sealed thereto by means of heat shrinking a band o~ heat-shrinkable material (not shown) placed about the inlet end of the sleeve of valve 25. Filter 33 can be affixed to cover 32, and cover 32 affixed to port 31 of housing 16 to complete the latter. Housing 16 can then be placed about the sleeve of valve 25 and can be forced upwardly to surround the bottom or a step-shaped shoulder of housing body 15 in a fluid tight manner, or adhesively affixed thereto, to complete the apparatus. Trocar 14 is conveniently provided with a handle 37 which can be molded or affixed thereto with an epoxy adhesive.
Another embodiment of the apparatus o~ the present invention is shown in Figs~ 6-8, in which the same reference numerals have been used for elements which are substanti~lly the same as those in the embodiment illustra~ed in Figs. 1-4.
Apparatus 10 in this embodiment includes an upper housing 40, constituting inlet chamber 12, defined by back wall 41, side walls 42, top wall 43 and bottom wall 44, which are integral with each other. A
~S4~68 URE/PAT: lo face or front wall 45 snap-fits into the front of the opening formed by side walls 42, top wall 43, and bottom wall 44 to complete inlet ~chamber 12.
Face wall 45 of inlet chamber 12 includes an aperture formed therein surrounded by a thickened portion 46 having an annular, outwardly facing recess 47 which serves as mounting means for the catheter 20, portion 46 extending inwardly of wall 45. Catheter 20 is mounted in the recess 47 of portion 46 and extends outwardly from wall 45. Catheter 20 has an outer end 48 having a trocar receiving aperture 49 and fluid receiving ports 50. Catheter 20 extend outwardly o~ wall 45 a sufficient distance so as to permit the outer end 48 and ports 50 to be positioned in a body cavity to be drained. Portion 46 includes an opening port 51 (Fig. 7) communicating with the interior of inlet chamber 12 and arranged to permit fluids and materials drained from the body cavity by the catheter 20 to enter inlet chamber 12.
Back wall 41 includes thickened portion 52 which defines the inlet port for trocar 14. Portion 52 extends interiorly of the inlet chamber, with an annular portion 53 thereof extending concentrically with the path of trocar 14. Annular portion 53 is formed by an annular shoulder 53a integral with wall 45, and a cylindrical insert 53b of which fits snugly within shoulder 53a in a fluid-sealed relation, as best shown in Fig. 8. Annular portion 53 includes an annular recess 53c adapted to support sealing material 22 for sealing the inlet port as described. The inlet port is axially aligned with the aperture in portion 46 of wall 45 and the path of trocar 14 to permit the tubular ~5 URE/PAT: lo portion of trocar 14 to progressively and smoothly, reversibly pass through the inlet ~ort, the aperture in portion 46 and catheter 20.
Portion 46 of wall 45 extends into annular recess 53c of portion 53, although it does not contact the walls of ~he recess for ease of assembly of face wall 45 to integral walls 41-44. Flexible sealing material 22, encircled by recess 53c, serves as ~he sealing means described above for sealing the inlet port in the absence of trocar 14 and for sealing the inlet port to trocar 14 when the latter is present therein or during its passage through or withdrawal from chamber 12.
Sealing material 22 further functions to seal portion 46 at its extension into recess 53c.
Bottom wall 44 includes an aperture 54 formed therein and an annular, outwardly extending and depending integral L-shaped flange 55.
Suspended beneath bottom wall 44 by a substantially flexible bellows-shaped member 56, is discharge chamber 13 separated from inlet chamber 12. Discharge chamber 13 is defined by an upwardly open housing 16 as in the previously described embodiment. A collar 57 is positioned w1thin bel10ws-shaped member 56 beneath and separated form bottom wall 44. Collar 57 is formed with a vertical aperture adapted to receive the upper, open end of a one-way elongated valve 25 which extends into housing 16 forming discharge chamber 13. The aperture and the upper portion of collar 57 which comprises a raised shoulder 58 is formed substantially to the shape of the upper, open end of valve 25, which is turned about should 58. The bellows-shaped member 46 is formed of a resilient material and is sized to closely fit the exterior URE/PAT: 101 sides of collar 57 and its shoulder 58. In addition, bellows-shaped member 56 is formed and shaped to closely fit to flange 55 of bottom wall 44 so as to ma;ntain a firmt but flexible spaced relatisn between collar 57 and bottom wall 44 and maintain a sealed relation S therebetween with respect to ~he ambient atmosphere. Collar 57 includes on its exterior portion ridges 59 and recesses 60 conforming to the interior sur~ace of bellows-shaped member 56 to assist in press;ng and maintaining the aforesaid spaced and sealed relation.
As hereto~ore described, housing 16 includes a wall formed with at least one port 31. Housing 16, as best shown in Fig. 8, includes a wall which is elongated and defines a plurality of the ports 31 which in this embodiment extend outwardly from housing 16. An elongated hydrophobic filter 33 is positioned against the portion of the wall which defines ports 31. A cover 32 defines a plurality of events 34 positioned along the elongated sides of member 32. Cover 32 is adapted to tightly fit to the exterior of the wall and supports ~ilter 33 therebetween. In addition, filter 33 is heatsealed to the wall to prevent ~he discharge of gaseous fluids ~rom dischar~e chamber 13, except through filter 33 and vents 34.
As in the preYiously describe~ embodiment, housing body 11, and particularly wall 45 defining inlet chamber 12 includes on its exterior surface, a self~adhesive strip 35 covered by protective release sheet 36 which is removed prior to insertion of the catheter into the bvdy cavity to be drained.
4~
URE/PAT:101 The catheter apparatus thus described can be readily assembled, as particularly shown in Fig. 8. In such assembly, the normally open end of the elongated one-way valve 25 can be inserted through the aperture in collar 57 and turned about should 58 as shown by the pa~h designated by arrows 61. Bellows-shaped member 56 can be slipped upwardly about valve 25 and positioned with its lower portion surrounding and holding collar 57 and the portion of valve 25 ~hich is turned about shpulder 5B
of the collar. In this position, bellows-shaped member 56 maintains valve 25 and collar 57 in fluid sealed relation to each o~her so tha~
fluid materials will pass only through the valve. Bellows-shaped member 56 can then be placed about flange 55 of the bottom wall 44 of the upper housing 40 as shown by the path designated by arrows 62 to establish a spaced apart relation between the upper housing 40 defining inlet chamber 12 and valve 25 in collar 57. The inlet port can next be established by inserting insert 53b with sealing material 22 residing in recess 53c into the aperture defend by the cylindrical shoulder 53a.
Wall 45 is snap fitted to the opening in housing 40 formed by walls 41-44~ with a portion of thickened portion 46 extending into recess 53c and contacting sealing material 22. Adhesive strip 35 can be applied to wall 45 and release sheet 46 in turn applied thereto, ~r the adhesive strip and the release sheet can be applied to wall 45 prior to its assembly to form the inlet chamber. Oatheter 20 can be mounted to wall 45 through an aperture in release sheet 36 and adhesive strip 35 to complete the assembly of the upper portion of the apparatus. Filter 33 can be applied to cover 32 and heat sealed thereto if desired, and ~S4~6 URE/PAT: lo cover 32 applied to port 31 in housing 30 to assemble discharge chamber 13. Finally, housing portion 16 defining the said chamber can be forced upwardly to surround the bottom of bellows-shaped member 56 to complete the assembly of the apparatus.
The present invention includes the provision of a sterile kit particularly adapted for the drainage of a body cavity. As best shown in Figs. ~ and 9, the sterile kit comprises a sealed package, such as a backing card 63 and transparent covering filln 64 defining a sterile interior. Positioned therebetween in the sterile interior of the package are an intrapleural catheter apparatus 10 in accordance with the present invention and a trocar 14 including a handle 37. It is oontemplated that both catheter apparatus 10 and trocar 14 are maintained in a sterile condition prior to packaging in the sterile kit9 and that the kit can-be conveniently asse~bled under sterile conditions by positioning apparatus 10 and trocar 14 on card 63.
Following asse~bly, the kit remains sterile until ~ 64 is pierced or removed.
The utilization oF the apparatus of the present inven~ion will now be described. If the catheter apparatus 10 is supplied in the sterile kit, the apparatus is removed form the kit under sterile conditions.
The trocar, being handled by its handle 37 is inserted through the inlet port of housing body 11 so that its end opposite handle 37 passes through inlet chamber 12 and catheter 20. As shown in Figs. 1-3, 6 and 7, catheter 20 will be straightened and aligned by trocar 14 passing therethrough. With the end of trocar 14 opposite handle 37 extending URE/PAT: 101 through and beyond the end of catheter 20, the release sheet 36 is removed form the adhesive strip 35, and the end of trocar 14 is ;nserted into the body of the patien~ through the skin and underlying tissue into the body cav;ty to be dra;ned. ~pon ~ull insertion of trocar 14 and catheter 20 therewith into the body cavity, sel~-adhesive strip 35 will adhere to the skin of the patient to ma;ntain the catheter apparatus in place. Therea~ter trocar 14 can be withdrawn by manipulation of handle 37. Upon withdrawal of trocar 14 from inlet chamber 12, the inlet por~ is sealed by sealing material 22. Fluid and other material from the body cavi~y to be drained can now pass through the aperture and/or ports 30, 50 of catheter 20 and pass therefrom through into inlet chamber 12 and the open end of valve 25. As theretofore described, fluids can progressively pass through valve 25 into discharge chamber 13. Gases, particularly air, are vented ~rom discharge chamber 13 through hydrophobic filter member 33 and out through Yents 34 formed in cover 32.
The apparatus of the present inven~ion can include an additional one-way valve, as illustrated in Fig. lO. The apparatus there shown is, in all major respects, identical to the apparatus in Figs. 1-4, and like re~erence numerals have been utilized for simllar elements.
Additionally, a second one-way va~ve 65 is mounted to housing body portion 15 so as to be positioned between and in fluid communication with inlet chamber 12 and the inlet end of the sleeve of one-way elongated valve 25. As shown in the drawing, one-way valve 65 can be a duck-bill valve~ such as those commercially available from Vernay Co., ~2~ 8 UREiPA~:101 and particularly a duck bill valve with a molded lip at its upper end.
Yalve 65 can be adhesively aff;xed to a disc or washer 66 of polymeric material, preferably the same material as body portion 15, and the subassembly of valve 65 and washer 66 adhesive-ly sealed to the bottom of housin~ body 15 with the exposed lip of valve 65 fitting within the enlarged recess of bore 26. The outer annular perimeter of washer 66 preferably has substantially the same dia~eter as shoulder 24, ~o that upon assembly washer 66 becomes an extension of housing body 15 and shoulder 24. The open inlet end of valve 25 can be placed about washer 66 and shoulder 24, and thereafter `a ring or band of rubber or heat shrinkable material 67 can be placed about the open, inlet end of the sleeve of valve 25, and if the latter, heat shrunk, to firmly affix and seal valve 25 to should 24. The utilization of second valve 65 in conjunction with the apparatus of the prevent invention further enhances the utility of the apparatus to prevent ~he back flow of material if any material should remain in the inlet end of the sleeve of valve 25 or if any material should move in the reverse direction through valve 25.
The apparatus of the present invention can also include a port 68, which can be in the form of a n;pple as shDwn in Fig. 1I for the purpose of applying suction or for drain;ng discharge chamber 13. In providing port 68, it is preferable to modify housing body 11, and particularly housing 30 by moving the hydrophobic filter 33 and the cover 32 to another wall of housiny 30 between the location of port 68 Z5 and the housing body 15 or upper housing 40 of the apparatus as shown.
~5~4 URE/PAT: lo Port 31 is then closed by a solid wall which is sealed thereto as shown in the dra~ing. Furthermore, port 68 can be formed in cover 32, so that suction can be applied to discharge chamber 13 through filter 33, and thereby facilitate the drainage of fluids, and perm;t the dra;nage of small amounts of other materials such as small pieces of t;ssue, through the catheter apparatus in the same manner as fluids.
The apparatus of the present 1nvention including port 68, can be utilized to collect drainage from the body cavity being dra;ned,- as illustrated Fig. 12. As shown, a conduit 69 is provided fitted or coupled to port 68 at one end and to drainage collection apparatus 70, at its o~her end. Apparatus 70 can comprise a firs~ rotatable disc 71 having a tube 72 passing therethrough and extending upwardly to which conduit 69 is coupled. A seco~d disc 73 is rotatably mounted to disc 71 by means of a fastener, such as rivet 74. Disc 73 has a plurality of tubes 75 circumferentially spaced about disc 73 which are each connected to a valve 76 and the valve in turn connected to drainage receptacles such as bags 77~ which may be initially rolled, as shown.
As tubes 75 are circumfer4ntially spaced in disc 73 at the same radius from ~he center as tube 72 is spaced form the center of disc 71, each of tubes 75, and hence valves 76, and collection receptacles 77 can be selectively spaced under and in communication with tube 72 upon rotation of disc 73. In this manner, each of collection bags 77 can be sequentially filled with drainage material, and can be removed upon closing of the respective valve 76 for analysis of the material, or for disposal, or for another purpose.
3L~:59L 468 UR~/PAT: 101 Alternatively, to provide drainage collection apparatus, a known collect;on device, such as the medical suction dev;ce described in ~S.
Patent No. 4,404,924 can be connected to port 68 to provide collection of the dra;na~e material from discharge chamber 13 of the present apparatus as well as remote indication of the suction being appl;ed to the apparatus.
Various changes coming wi~hin the spirit of the invention may suggest themselves to those skilled in the art; hence, the invention is not limited to the specific embodiments shown or descnibed and uses men~ioned, but the same is intended to be merely exemplary, the scope o~ the invention beiny limited only by the appended claims.
Claims (33)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. Apparatus for drainage of a body cavity, comprising:
a housing body having portions defining an inlet chamber and a discharge chamber;
said housing body portion defining said inlet chamber having mounting means for supporting a catheter in sealed arrangement therewith and in fluid com-munication with said inlet chamber;
a catheter supported by said mounting means and extending outwardly from said inlet chamber, said catheter being in fluid communication with said inlet chamber;
an inlet port in said housing body portion defining said inlet chamber having inlet port sealing means which is adapted to reversibly receive a trocar and enable at least a portion of a trocar to pass through said inlet chamber and said catheter, and said inlet port sealing means for sealing said chamber against the ambient atmosphere in the absence of a trocar, and upon insertion and withdrawal of a trocar from at least said catheter to seal said inlet chamber from the ambient atmosphere;
a one-way valve mounted in said housing body and coupling said inlet chamber with said discharge chamber so as to prevent the passage of fluid between said chambers except through said valve, said valve having its inlet end in communication with said inlet chamber, said valve having its outlet end in fluid commu-nication with said discharge chamber, said valve being adapted to permit passage of drainage material passing therethrough from its inlet end to its outlet end.
a housing body having portions defining an inlet chamber and a discharge chamber;
said housing body portion defining said inlet chamber having mounting means for supporting a catheter in sealed arrangement therewith and in fluid com-munication with said inlet chamber;
a catheter supported by said mounting means and extending outwardly from said inlet chamber, said catheter being in fluid communication with said inlet chamber;
an inlet port in said housing body portion defining said inlet chamber having inlet port sealing means which is adapted to reversibly receive a trocar and enable at least a portion of a trocar to pass through said inlet chamber and said catheter, and said inlet port sealing means for sealing said chamber against the ambient atmosphere in the absence of a trocar, and upon insertion and withdrawal of a trocar from at least said catheter to seal said inlet chamber from the ambient atmosphere;
a one-way valve mounted in said housing body and coupling said inlet chamber with said discharge chamber so as to prevent the passage of fluid between said chambers except through said valve, said valve having its inlet end in communication with said inlet chamber, said valve having its outlet end in fluid commu-nication with said discharge chamber, said valve being adapted to permit passage of drainage material passing therethrough from its inlet end to its outlet end.
2. The apparatus as defined in claim 1 wherein the housing body portion defining said inlet chamber comprises a substantially solid body having a first bore extending therethrough and in fluid communication with said catheter and said inlet port and adapted to reversibly receive a trocar for passage therethrough, said substantially solid body having means for mounting the one-way valve thereto within said housing body, and said substantially solid body having a second bore therein in fluid communication with said first bore and in fluid communication with the inlet end of said one-way valve.
3. The apparatus as defined in claim 2 wherein said mounting means for supporting the catheter in said housing body portion defining said inlet chamber comprises a cannula sealingly affixed in a first end portion of the substantially solid body defining the first bore and supporting the catheter outwardly extending there-from, the catheter being secured to said cannula.
4. The apparatus as defined in claim 1 wherein the housing body portion defining said inlet chamber comprises an open-faced enclosure having back, side, top and bottom walls, and a separable face wall adapted to be secured to said enclosure in fluid-sealing relation thereto, said face wall including said mounting means and said catheter supported thereby, said back wall having said inlet port, and said bottom wall defining an aperture therein adapted for fluid communication with said one-way valve.
5. The apparatus defined in claim 4 wherein said back, side, top and bottom walls are integral with each other.
6. The apparatus as defined in claim 1 wherein said inlet chamber and said discharge chamber are separated by a substantially flexible bellows-shaped member in which the inlet end of said one-way valve is supported in sealed relation communicating said inlet chamber with said discharge chamber.
7. The apparatus as defined in claim 1 wherein said sealing means includes d1splaceable sealing material positioned within said inlet chamber for sealing said chamber against the ambient atmosphere in the absence of and upon insertion and withdrawal of a trocar with respect to said inlet chamber and said inlet port.
8. The apparatus as defined in claim 1 wherein said discharge chamber includes hydrophobic filter means in communi-cation therewith for filtering gaseous fluids from said discharge chamber.
9. The apparatus as defined in claim 8, wherein said hydrophobic filter means comprises an elongated filter member mounted along one wall of the housing body portion defining said discharge chamber.
10. The apparatus as defined in claim 9, wherein said wall of the housing body portion defining said discharge chamber is formed with at least one port, said elongated filter member is positioned exteriorly of said wall and said port, and said wall includes a cover member adapted to support said elongated filter member between said cover member and said wall.
11. The apparatus as defined in claim 10, wherein said cover member includes at least one port open to the ambient atmosphere, whereby said discharge chamber is in communication with the ambient atmosphere only through said filter.
12. The apparatus as defined in claim 10, wherein said cover member includes a port connectable to suction means whereby suction can be applied to the discharge chamber of said apparatus through said filter.
13. The apparatus as defined in claim 9 wherein said housing body portion defining said discharge chamber includes a port connectable to suction means for applying suction to the discharge chamber of said apparatus to assist in drainage.
14. The apparatus as defined in claim 9 wherein said housing body portion defining said discharge chamber includes a port connectable to drainage collection means for receiving drainage from said discharge chamber.
15. The apparatus as defined in claim 14 including drainage collection means comprising a plurality of collection containers, distributing means for selectively distributing drainage received from said discharge chamber to each of said plurality of collection containers, and a conduit leading from said port to said distrib-uting means for conducting drainage from said port to said distrib-uting means.
16. The apparatus as defined in claim 1 wherein said catherter comprises a spring core covered by an elastomeric coating.
17. The apparatus as defined in claim 16 wherein the said catheter includes at least one aperture in the coating thereof adjacent its tip end, through which materials from the body cavity are adapted to pass to and through the core thereof into the catheter upon the catheter being inserted into the body cavity to be drained.
18. The apparatus as defined in claim 1, wherein said , one-way valve is a one-way elongated valve being formed of a sleeve of substantially resilient, fluid-impervious material and having its inlet end held open, said valve being normally held closed along a substantial length of the sleeve by the substantial resilience of the material of said sleeve and adapted to pro-gressively open and close to permit the irreversible passage of drainage material passing therethrough from its inlet end to its outlet end.
19. The apparatus as defined in claim 18, wherein said inlet chamber and said discharge chamber are separated by a substantially flexible bellows-shaped member in which the inlet end of the sleeve of said one-way elongated valve is supported in sealed relation communicating said inlet chamber with said discharge chamber, and including collar means positioned within said bellows-shaped member for receiving the inlet end of the sleeve of said one-way elongated valve.
20. The apparatus as defined in claim 19 wherein said collar means comprises a collar having a shoulder adapted to receive the inlet end of the sleeve of said one-way valve with the inlet end of said sleeve through said collar the inlet end of said sleeve being turned about said shoulder, and sealed thereagainst by a portion of the interior surface of the bellows-shaped mem-ber pressing thereagainst and preventing the passage of fluid between said inlet end of the sleeve of said valve and said collar.
21. The apparatus as defined in claim 20 wherein said collar includes an exterior portion having ridges and recesses conforming to the interior surface of said bellows-shaped member for maintaining a sealed relation therebetween.
22. The apparatus as defined in claim 18 including a second one-way valve mounted in said housing body between and in fluid communication with said inlet chamber and the inlet end of the sleeve of said first one-way elongated valve so as to prevent the passage of fluid between said inlet chamber and said first one-way elongated valve except through said second valve.
23. The apparatus as defined in claim 22 wherein said second one-way valve is formed of a sleeve of substantially resilient, fluid-impervious material and is positioned within and axially aligned with the held open inlet of the sleeve of said first one-way elongated valve, and said second one-way valve having its inlet end held open and in communication with said inlet chamber.
24. The apparatus as defined in claim 18, wherein said sealing means includes displaceable sealing material positioned within said inlet chamber for sealing said chamber against the ambient atmosphere in the absence of and upon insertion and withdrawal of a trocar with respect to said inlet chamber and said inlet port.
25. The apparatus as defined in claim 18, wherein said discharge chamber includes hydrophobic filter means in communi-cation therewith for filtering gaseous fluids from said discharge chamber.
26. The apparatus as defined in claim 25, wherein said hydrophobic filter means comprises an elongated filter member mounted along one wall of the housing body portion defining said discharge chamber, said wall being formed with at least one port and including a cover member adapted to support said elongated filter member positioned exteriorly of said wall and said port, said wall including a cover member adapted to support said elongated filter member between said cover member and said wall.
27. The apparatus as defined in claim 26, wherein said cover member includes at least one port open to the ambient atmosphere, whereby said discharge chamber is in communication with the ambient atmosphere only through said filter.
28. The apparatus as defined in claim 25, wherein said housing body portion defining said discharge chamber includes a port connectible to suction means for applying suction to the discharge chamber of said apparatus to assist in drainage.
29. The apparatus as defined in claim 25, wherein said housing body portion defining said discharge chamber includes a port connectable to drainage collection means for receiving discharge from said discharge chamber.
30. The apparatus as defined in claim 29 including drainage collection means comprising a plurality of collection containers, distributing means for selectively distributing drainage received from said discharge chamber to each of said plurality of collection containers, and a conduit leading from said port to said distrib-uting means for conducting drainage from said port to said distributing means.
31. A sterile kit for the drainage of a body cavity comprising:
a sealed package the interior of which is sterile;
apparatus for drainage of a body cavity positioned within the interior of said package, comprising:
a housing body having portions defining an inlet chamber and a discharge chamber;
said housing body portion defining said inlet chamber having mounting means for supporting a catheter in sealed arrangement therewith and in fluid com-munication with said inlet chamber;
a catheter supported by said mounting means and extending outwardly from said inlet chamber, said catheter being in fluid communication with said inlet chamber;
an inlet port in said housing body portion defining said inlet chamber having inlet port sealing means which is adapted to reversibly receive a trocar and enable at least a portion of the trocar to pass through said inlet chamber and said catheter, and said inlet port sealing means for sealing said cham-ber against the ambient atmosphere in the absence of and upon insertion and withdrawal of a trocar from at least said catheter a one-way valve mounted in said housing body and coupling said inlet chamber with said discharge chamber so as to prevent the passage of fluid between said chambers except through said valve, said valve having its inlet end in communication with said inlet chamber, said valve having its outlet end in fluid commu-nication with said discharge chamber, said valve being adapted to permit the irreversible passage of drainage material passing therethrough from its inlet end to its outlet end;
and a trocar positioned within the interior of said package having a portion adapted upon utilization of the apparatus to be inserted into said inlet chamber through said inlet port and through said catheter into a body cavity to be drained, and to be withdrawn from said body cavity, said catheter and said inlet chamber, while leaving the catheter in communication with said body cavity, while the portion in the inlet chamber and inlet port is sealed against the ambient atmosphere by a said sealing means.
a sealed package the interior of which is sterile;
apparatus for drainage of a body cavity positioned within the interior of said package, comprising:
a housing body having portions defining an inlet chamber and a discharge chamber;
said housing body portion defining said inlet chamber having mounting means for supporting a catheter in sealed arrangement therewith and in fluid com-munication with said inlet chamber;
a catheter supported by said mounting means and extending outwardly from said inlet chamber, said catheter being in fluid communication with said inlet chamber;
an inlet port in said housing body portion defining said inlet chamber having inlet port sealing means which is adapted to reversibly receive a trocar and enable at least a portion of the trocar to pass through said inlet chamber and said catheter, and said inlet port sealing means for sealing said cham-ber against the ambient atmosphere in the absence of and upon insertion and withdrawal of a trocar from at least said catheter a one-way valve mounted in said housing body and coupling said inlet chamber with said discharge chamber so as to prevent the passage of fluid between said chambers except through said valve, said valve having its inlet end in communication with said inlet chamber, said valve having its outlet end in fluid commu-nication with said discharge chamber, said valve being adapted to permit the irreversible passage of drainage material passing therethrough from its inlet end to its outlet end;
and a trocar positioned within the interior of said package having a portion adapted upon utilization of the apparatus to be inserted into said inlet chamber through said inlet port and through said catheter into a body cavity to be drained, and to be withdrawn from said body cavity, said catheter and said inlet chamber, while leaving the catheter in communication with said body cavity, while the portion in the inlet chamber and inlet port is sealed against the ambient atmosphere by a said sealing means.
32. The sterile kit as defined in claim 31, wherein said one-way valve mounted in said housing body of said apparatus is a one-way elongated valve being formed of a sleeve of substantially resilient, fluid impervious material, having its inlet and held open, said valve being normally held closed along a substantial length of the sleeve by the substantial resilience of the material of said sleeve and adapted to progressively open and close to permit the irreversible passage of draining material passing therethrough.
33. The sterile kit as defined in claim 32, wherein the apparatus for drainage of a body cavity includes a second one-way valve mounted in said housing body between and in fluid communi-cation with said inlet chamber and the inlet end of the sleeve of said first one-way elongated valve so as to prevent the passage of fluid between said inlet chamber and said first one-way elon-gated valve except through said second valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000518239A CA1254468A (en) | 1986-09-16 | 1986-09-16 | Chest drainage apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000518239A CA1254468A (en) | 1986-09-16 | 1986-09-16 | Chest drainage apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1254468A true CA1254468A (en) | 1989-05-23 |
Family
ID=4133942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000518239A Expired CA1254468A (en) | 1986-09-16 | 1986-09-16 | Chest drainage apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1254468A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106730077A (en) * | 2016-11-16 | 2017-05-31 | 浙江伽奈维医疗科技有限公司 | A kind of device for treating pneumothorax |
-
1986
- 1986-09-16 CA CA000518239A patent/CA1254468A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106730077A (en) * | 2016-11-16 | 2017-05-31 | 浙江伽奈维医疗科技有限公司 | A kind of device for treating pneumothorax |
| CN106730077B (en) * | 2016-11-16 | 2023-12-01 | 浙江伽奈维医疗科技有限公司 | Device for treating pneumothorax |
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