CA2199479C - Apparatus and method for ventilating and aspirating - Google Patents
Apparatus and method for ventilating and aspirating Download PDFInfo
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- CA2199479C CA2199479C CA002199479A CA2199479A CA2199479C CA 2199479 C CA2199479 C CA 2199479C CA 002199479 A CA002199479 A CA 002199479A CA 2199479 A CA2199479 A CA 2199479A CA 2199479 C CA2199479 C CA 2199479C
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Abstract
A sealed ventilation circuit adapter (100) that enables simultaneous patient ventilation and safe tracheal suctioning is embodied to accommodate any of a wide variety of commercially available suction catheters (220). The adapter comprises a manifold assembly (105), and a catheter carrier (185). The manifold assembly may be attached to a patient for an extended period, while the catheter carrier is advantageously constructed as a single procedural us e disposable device. The carrier couples with the manifold assembly and functions to effect an introduction of a catheter through a normally closed valve structure (155) carried by the manifold assembly.
Description
W(~ 96l09082 2 i 9 9 ~ 7 9 - PCTluSg4rl0505 APPARATUS AND METHOD FOR VENTILATING AND ASPIRATING
BACKGROUND OF THE INVENTION
This invention relates to means for vçntil~ting and aspirating the l~;s~ ol~/ tracts of me~ l p~ti~nt~. It is particularly directed to an improved ventil~tic)n circuit adapter.
State of the Art: Cull~,nlly available means for v~ntil~ting and a~il~ling con~este~ lungs and obstructed l,l~ passage ways may be cl~sified as either "simple" or "complex." Devices of both classes have cignific~nt drawbacks and limit~tions. The available devices of simple construction tend to expose both the patient and the service provider to microbial co..~ Although these devices are relatively less ~el si~e, their use potentially provides d~gen~usly in~ te patient ventil~tiQn during the aspirating procedure. More elaborate devices tend to be physically obstructive and ecol~ol.,ically ~luhil,i~ive to use.
In common merlic~l practice, a mP~ic~l practitiQnP,r inserts a tr~-~h~Al suctioning 5~th~te- into a mPAi~l patient's lungs. The c,~th~ter may be positioned within a tr~he~l tube, endotr~ch~l tube or nasol~halyllg~al tube int~lb~t~ at a tracheotomy incision, mouth or nasal opçning"G~ei~i~rely. The end of the ç~thP,ter ~cces~ible by the m~li-~l pr~ctitinnpr is ~Ggdl~ed as its "pr~ lal" end.
The end of the c~lht~lel remote from the pr~rtiti~ner~ that is, within the patient, is regarded as its "distal" end. In a typical procedure, negative ~ Ul~ is exerted at the ~ uh~lal end of the c ~ . Ul~de~,hGd lG~ila~ly fluids and mucoid secretions are thereby ev~-u~t~ from the mPAic~l patient through the distal end of the C~ r,l~,r.
In a relatively simple practice, a source of vacuum p~Gs~ur~ remains ~tt~t hPA to the p~Lunal c~ rl~- end. Negative pleSi~ul'G iS not co..~ tPA to the distal c~thPter end initially. Rather, negative pl~ UlG iS co.~ ted to an ape,~ulG near the ~ ~ullal c~ll.rl . end. When aspiration of the patient is desired, the practitioner plugs the a~)Gl~UlG, n~ lly with a f~ger or thumb. Negative Ul~ iS ~ ,r~y ;~I!J;~ POUS1Y diverted from the small al)GlLu,e near the al c~ll.klel end through the c~th~ter lumen to the distal end of the c~th~o-ter.In this fashion, undesired lG~..aluly fluids are aspirated from the l~ alOly tract wo 96/09082 2 1 g 9 4 7 9 ~ = PCIIUS94/10505 of the patient. The suctioning c~$h~t~ is then disconn~ted from the vacuum source and discarded after a single use.
Ventil~til~n of the patient ~imlllt~n.o~usly with this a~ildlu~g p~celulk is generally impr~ctir~l. Such vçntil~tion inh~lGnLly l~UileS ~ t~nce from S y~ lition~l pe~ lnel as well as mech~nir~ t~nce, neither of which is available as a matter of course. Accol~ingly, the a~ildlillg pn)cedul~ must oldi,l~ily be completed within a short period of time. Olll~ .~ise, the patient may e"~ lienceoxygen ~lefiriency and be exposed to the res~-lting potential for heart ~lhyLh,.~ia and/or failure.
More complex a~il~ling devices are available, which while avoiding some of the disadvantages ~tt~.n-l~nt to the stmctnr~lly more simple devices, impose additional disadv~nt~ges For example, they are signiflcantly more expensive to construct, and their greater m~mber of moving parts increases the risk of disfunction during use. They are also larger and more cumbt;l~oll,e to use, imposing a greater physical illt ,.r~ ~ence with other, related procedures.
The complex, closed-system devices are sh~r~ctt ri~ti~lly com~ ed of a manifold structure en~h1ing introduction of venti1~ting gases and ;..le~
e~ch~1~tion of patient breath .sim-~1t~n~ously with insertion and operation of the t~ hP~1 suctioning c~ ,.. These systems almost universally involve at least one collapsible, plastic envelope entirely s.~ u~ding the r~thPt~r and pu~o~ g to provide a sterile barrier be~weell the oll,~ vise exposed extPrn~1 surface of the c~ r and the ambient atmosphere. In pr~rtice~ a pr~thi-~ner m~m1~11y c~xtern~11y collapses the envelope onto the to.l~tP.rn~1 surface of the ç~ and advances the c~ er into the throat of a patient, retr~cting the c~th~tP in a similar fashion following the a~,hdLion procedure.
These closed-system devices under present medical protocol are oldindlily used at least hourly for up to 48 hours for each patient before being replaced.
Problems ~ttPn~1~nt to such r ~ucllt and lcl~Calcd in-dwelling use are numerous,among other problems constriction of the c~ lel lumen and valve flow path with dried and drying phlegm and other rc~loly secretions, creation of co-~ nt-allowing pinholes in the collapsible pldstic barrier and the need to physically move the lengthy and cumbersome devices from one location on the body of the patient t Wo~6/09082 21 9 9 4 7~ PCrrUSs4l1050s to another when the devices ull~,.r~,l;e with other procedures. Associated with the dried and drying secretions inside the lumen are like secretions on the exterior of the c~ .ele~ wall which ~cc~lm~ te at the manifold wiper seal; such thick and undesired l~,~LalOl y secretions not only restrict the facile movement of the c .~ through the manifold, but also can be unavoidably reintroduced to the patient in ~ubs~lu~~l repeat procedures.
M~tP.ri~l prior art structures and mPtll- -ls are descl;l)ed among other places in United States Patent Numbers 5,133,345 to Lambert; 5,107,829 to Lambert;
5,083,561 to Russo; 5,065,754 to Jensen; 5,029,580 to Radford et al.; 5,025,806 to Palmer et al.; 4,981,466 to Lambert; 4,967,743 to Lambert; 4,938,741 to T~mbert; 4,872,579 to Palmer; 4,838,255 to Lambert; 4,836,199 to Palmer;
4,834,726 to Lambert; 4,825,859 to Lambert; 4,805,611 to T-Totlgkin~ 4,696,296 to Palmer; 4,638,539 to Palmer; 4,569,344 to Palmer; 4,327,723 to Franlchousel, and 3,991,762 to Radford.
Other closed-system, sterility preserving devices which involve sterile ba~ formed of n~bber-like m~tPri~l~ and inten~le~l for l~e"t ~ ;on by rigid c~nn~ P include: rubber like caps fitted on "y" injection site structures and located at the end of indwelling intravenous c~ el~, such as those distributed by IIARMAC ~ Speci~1ti~s, Inc. of Buffalo, New York under the product llu-nb~l H1429104; rubber-like caps fitted on housing structure ~n~hor~ble at injection sites, such as those distributed by Baxter T-TP~lth~re Corp. of DePrfiPl~, Illinois under product number 2N3399 and their tr~dem~rk "TntPrTinkclM);" and threaded lock c~nn~ used in co,ljunclion with the Baxter TntPrTinkc~ for nP~llP1~P~ injection by Becton Dicl~inson & Co. of Franldin Lakes, New Jersey under product number 303369 and their tr~d~Pm~rk 'lTnterT inkCFM). ~
United States Letters Patent No. 4,351,328 to Bodai r~ oses a mPthod and a~dla~us for accomplishing çn-lot~- hP~l s~lctionin~ of a patient without the need for disco~mP~ the patient from a le~i.alcr. The disclosed a~p~halus pellllil the ~ e of positive end e~)ila~ S~ul~, without ull~lu~lions during suctioning. A notable feature of the device is the ease with which a suctioning tube may be removed from an ~soci~te(l vPntil~tion manifold.
WO 9G~9C ~2 ~ . . PCT/US9411050S
~g~ ~79", . ;L. ~ _4~
There remains a need for a venti1~ting and ~crir~ting device, wherein a closed-system, multiple use manifold for a single patient is coupled with a single-patient, single use c~thPtP-r, which structure is comprised of relatively few pa~ts, is easily assembled and is not susceptible to disfunction.
Also, a need ~~ ns for a tr~chP~1 suctioning device which unobl~lsively enables ongoing closed-system venti1~tion and repe~tçd aspiration of a single patient without interim obstruction of ~ed~h~ ~al procedures.
SVMMARY OF 1~ INVENTION
The present invention provides an improved a~lus and method for cim~ f~usly venti1~ting and a~ihaLi-l~, a me~ 1 patient. It may be embodied as a sealed venti1~tion circuit adapter that enables ciml~lt~nPous patient ventil~tion and safe tr~hP~1 suctioning.
The adapter of this invention may be embodied to accommo-1~tç any of a wide variety of commercially available suction c~thettors. ~ ,1h~lel~ with flared tips, obvious depth m~rkingc, and normally closed vacuum control valves are P1GSGIII1Y considered to be most useful. CU~1Gnl1Y pl~f~ d embo-limPntc of the adapter comprise two p ulJaly COIIIPOIIG~ a manifold assembly, and a c~thPt~Pr carder. The mal~ifold assembly will or~lin~iiy be ~tt~hçd to a patient for an PxtP.n~1PA period, typically 24-48 hours. The c--lh~,r carrier is advantageouslyconstructed as a single proce~ 1 use disposable device; it is ideally constructed to accept illl~ a.l~f~bly a vadety of commercially available c~
The invention enables a practitioner to insert a flexible c~ k~. tube into either lung of a patient in one smooth motion without risk of co..~...;oa~i( n or infection and without ~ccict~n~e from others. ~ itiQn~11y, a practitioner is able to activate vacuum 1)~S~U1~ with either hand and without ~ t~nce from others.
A standard flexible tr~chP~1 suctioning c~hrlP~ tube is ~tt~hP11 at the ph~llal (pr~u~;~;o~ r) end to a fitting cylinder for insertion into a vacuum source.
The cylinder in~1~1des an offset ol)el~ing which when plugged transfers co... ~ ti-~n of the vacuum pressure from outside the C~lhr.l~.. - to the intPrn~1 lumen of the CA~ el. The distal (patient) end of the c~thPter tube is structured to permit l~,~halOly secretions to be suctioned into the lumen of the c~thPter tube.
WO 9~/u9082 ~ pCrlUS94110505 ~ --5-The c~thP.ter tube is slidable len~ ~ise through a passageway in a multi-function manifold positioned at the distal end of the a~p~lus. The ma~ufold preferably in~ de.s a port at the distal end for ~tt~rhmPnt to and co.. u,i~ tion with an indwelling inh~b~tion device, such as a t~chP~l tube, Fn-lot~chP~l tube or S naso~la~ eal tube. The manifold also ~-c~dbly in~ es a vçntil~tin~ stmcture extending radially from and in fluid co"""ll"ic~tinn with the p~s~geway, for selectively introducing ambient air, ~JAygP~ ~ air and other l1~F1~ eUI;~- gasses into the lr~ lOly system of the patient. Other conduits may also be provided for the intro~ctinn of other suitable gases and lavage solution~ to the ~e~ oly system.
Specific~lly, this invention provides an advantageous ventil~tion circuit adapter for int~ e.ing a suction c~ with an i..lul)~lion device. The adapter may be vi~ lbed as comprising two major colllpon.,.lls; .~l-ecir.c~lly, a manifold assembly and a ç~ e, carrier. In pr~tire~ the adaptor may be assoc,aled in a p~ ~ or kit with one or more c~ le~ ely, a manifold assembly may be ~sociqfed with a plurality of cn~ le~ calTiers.
The manifold g~ner~lly has a body with an open i~ ior. A distal end portion of the body is adapted to couple with an i--~ ion device. A p~ nal end portion of the body is formed as an open port defined by a co.~ ous wall.
The manifold may take various forms, but its p~ùk"llal end portion should be a~lu~ ly axially ~lignP~ with its distal end portion so that a cathPtPr may be inserted through the plu~ihllal end portion to exit from the distal end portion. A
directi~nl~l barrier is carried by the p~u~llllal end portion of the manifold assembly. It is constructed and a-lanEed to effect a seal against fluid flow through the open interior of the manifold lc,wal~s the pl~il,lal end portion but to pass a c~th~tPr introduced through the ~JlU~illlal end portion.
I~f~ly, the &~;~ l barrier is configured to be "Iselled in the plU~Ulllal end portion in sealing relationship with the open interior, and colll~lises a nor n~lly closed valving structure. The normally closed valve structure may beconstructed and arranged to effect a sliding seal a.l, .lge~ent with the ~-xt~.rn~l surface of a c~thP.ter passed through the body of the manifold; that is, from the p~U~ end portion towards the distal end portion through the valve structure.
BACKGROUND OF THE INVENTION
This invention relates to means for vçntil~ting and aspirating the l~;s~ ol~/ tracts of me~ l p~ti~nt~. It is particularly directed to an improved ventil~tic)n circuit adapter.
State of the Art: Cull~,nlly available means for v~ntil~ting and a~il~ling con~este~ lungs and obstructed l,l~ passage ways may be cl~sified as either "simple" or "complex." Devices of both classes have cignific~nt drawbacks and limit~tions. The available devices of simple construction tend to expose both the patient and the service provider to microbial co..~ Although these devices are relatively less ~el si~e, their use potentially provides d~gen~usly in~ te patient ventil~tiQn during the aspirating procedure. More elaborate devices tend to be physically obstructive and ecol~ol.,ically ~luhil,i~ive to use.
In common merlic~l practice, a mP~ic~l practitiQnP,r inserts a tr~-~h~Al suctioning 5~th~te- into a mPAi~l patient's lungs. The c,~th~ter may be positioned within a tr~he~l tube, endotr~ch~l tube or nasol~halyllg~al tube int~lb~t~ at a tracheotomy incision, mouth or nasal opçning"G~ei~i~rely. The end of the ç~thP,ter ~cces~ible by the m~li-~l pr~ctitinnpr is ~Ggdl~ed as its "pr~ lal" end.
The end of the c~lht~lel remote from the pr~rtiti~ner~ that is, within the patient, is regarded as its "distal" end. In a typical procedure, negative ~ Ul~ is exerted at the ~ uh~lal end of the c ~ . Ul~de~,hGd lG~ila~ly fluids and mucoid secretions are thereby ev~-u~t~ from the mPAic~l patient through the distal end of the C~ r,l~,r.
In a relatively simple practice, a source of vacuum p~Gs~ur~ remains ~tt~t hPA to the p~Lunal c~ rl~- end. Negative pleSi~ul'G iS not co..~ tPA to the distal c~thPter end initially. Rather, negative pl~ UlG iS co.~ ted to an ape,~ulG near the ~ ~ullal c~ll.rl . end. When aspiration of the patient is desired, the practitioner plugs the a~)Gl~UlG, n~ lly with a f~ger or thumb. Negative Ul~ iS ~ ,r~y ;~I!J;~ POUS1Y diverted from the small al)GlLu,e near the al c~ll.klel end through the c~th~ter lumen to the distal end of the c~th~o-ter.In this fashion, undesired lG~..aluly fluids are aspirated from the l~ alOly tract wo 96/09082 2 1 g 9 4 7 9 ~ = PCIIUS94/10505 of the patient. The suctioning c~$h~t~ is then disconn~ted from the vacuum source and discarded after a single use.
Ventil~til~n of the patient ~imlllt~n.o~usly with this a~ildlu~g p~celulk is generally impr~ctir~l. Such vçntil~tion inh~lGnLly l~UileS ~ t~nce from S y~ lition~l pe~ lnel as well as mech~nir~ t~nce, neither of which is available as a matter of course. Accol~ingly, the a~ildlillg pn)cedul~ must oldi,l~ily be completed within a short period of time. Olll~ .~ise, the patient may e"~ lienceoxygen ~lefiriency and be exposed to the res~-lting potential for heart ~lhyLh,.~ia and/or failure.
More complex a~il~ling devices are available, which while avoiding some of the disadvantages ~tt~.n-l~nt to the stmctnr~lly more simple devices, impose additional disadv~nt~ges For example, they are signiflcantly more expensive to construct, and their greater m~mber of moving parts increases the risk of disfunction during use. They are also larger and more cumbt;l~oll,e to use, imposing a greater physical illt ,.r~ ~ence with other, related procedures.
The complex, closed-system devices are sh~r~ctt ri~ti~lly com~ ed of a manifold structure en~h1ing introduction of venti1~ting gases and ;..le~
e~ch~1~tion of patient breath .sim-~1t~n~ously with insertion and operation of the t~ hP~1 suctioning c~ ,.. These systems almost universally involve at least one collapsible, plastic envelope entirely s.~ u~ding the r~thPt~r and pu~o~ g to provide a sterile barrier be~weell the oll,~ vise exposed extPrn~1 surface of the c~ r and the ambient atmosphere. In pr~rtice~ a pr~thi-~ner m~m1~11y c~xtern~11y collapses the envelope onto the to.l~tP.rn~1 surface of the ç~ and advances the c~ er into the throat of a patient, retr~cting the c~th~tP in a similar fashion following the a~,hdLion procedure.
These closed-system devices under present medical protocol are oldindlily used at least hourly for up to 48 hours for each patient before being replaced.
Problems ~ttPn~1~nt to such r ~ucllt and lcl~Calcd in-dwelling use are numerous,among other problems constriction of the c~ lel lumen and valve flow path with dried and drying phlegm and other rc~loly secretions, creation of co-~ nt-allowing pinholes in the collapsible pldstic barrier and the need to physically move the lengthy and cumbersome devices from one location on the body of the patient t Wo~6/09082 21 9 9 4 7~ PCrrUSs4l1050s to another when the devices ull~,.r~,l;e with other procedures. Associated with the dried and drying secretions inside the lumen are like secretions on the exterior of the c~ .ele~ wall which ~cc~lm~ te at the manifold wiper seal; such thick and undesired l~,~LalOl y secretions not only restrict the facile movement of the c .~ through the manifold, but also can be unavoidably reintroduced to the patient in ~ubs~lu~~l repeat procedures.
M~tP.ri~l prior art structures and mPtll- -ls are descl;l)ed among other places in United States Patent Numbers 5,133,345 to Lambert; 5,107,829 to Lambert;
5,083,561 to Russo; 5,065,754 to Jensen; 5,029,580 to Radford et al.; 5,025,806 to Palmer et al.; 4,981,466 to Lambert; 4,967,743 to Lambert; 4,938,741 to T~mbert; 4,872,579 to Palmer; 4,838,255 to Lambert; 4,836,199 to Palmer;
4,834,726 to Lambert; 4,825,859 to Lambert; 4,805,611 to T-Totlgkin~ 4,696,296 to Palmer; 4,638,539 to Palmer; 4,569,344 to Palmer; 4,327,723 to Franlchousel, and 3,991,762 to Radford.
Other closed-system, sterility preserving devices which involve sterile ba~ formed of n~bber-like m~tPri~l~ and inten~le~l for l~e"t ~ ;on by rigid c~nn~ P include: rubber like caps fitted on "y" injection site structures and located at the end of indwelling intravenous c~ el~, such as those distributed by IIARMAC ~ Speci~1ti~s, Inc. of Buffalo, New York under the product llu-nb~l H1429104; rubber-like caps fitted on housing structure ~n~hor~ble at injection sites, such as those distributed by Baxter T-TP~lth~re Corp. of DePrfiPl~, Illinois under product number 2N3399 and their tr~dem~rk "TntPrTinkclM);" and threaded lock c~nn~ used in co,ljunclion with the Baxter TntPrTinkc~ for nP~llP1~P~ injection by Becton Dicl~inson & Co. of Franldin Lakes, New Jersey under product number 303369 and their tr~d~Pm~rk 'lTnterT inkCFM). ~
United States Letters Patent No. 4,351,328 to Bodai r~ oses a mPthod and a~dla~us for accomplishing çn-lot~- hP~l s~lctionin~ of a patient without the need for disco~mP~ the patient from a le~i.alcr. The disclosed a~p~halus pellllil the ~ e of positive end e~)ila~ S~ul~, without ull~lu~lions during suctioning. A notable feature of the device is the ease with which a suctioning tube may be removed from an ~soci~te(l vPntil~tion manifold.
WO 9G~9C ~2 ~ . . PCT/US9411050S
~g~ ~79", . ;L. ~ _4~
There remains a need for a venti1~ting and ~crir~ting device, wherein a closed-system, multiple use manifold for a single patient is coupled with a single-patient, single use c~thPtP-r, which structure is comprised of relatively few pa~ts, is easily assembled and is not susceptible to disfunction.
Also, a need ~~ ns for a tr~chP~1 suctioning device which unobl~lsively enables ongoing closed-system venti1~tion and repe~tçd aspiration of a single patient without interim obstruction of ~ed~h~ ~al procedures.
SVMMARY OF 1~ INVENTION
The present invention provides an improved a~lus and method for cim~ f~usly venti1~ting and a~ihaLi-l~, a me~ 1 patient. It may be embodied as a sealed venti1~tion circuit adapter that enables ciml~lt~nPous patient ventil~tion and safe tr~hP~1 suctioning.
The adapter of this invention may be embodied to accommo-1~tç any of a wide variety of commercially available suction c~thettors. ~ ,1h~lel~ with flared tips, obvious depth m~rkingc, and normally closed vacuum control valves are P1GSGIII1Y considered to be most useful. CU~1Gnl1Y pl~f~ d embo-limPntc of the adapter comprise two p ulJaly COIIIPOIIG~ a manifold assembly, and a c~thPt~Pr carder. The mal~ifold assembly will or~lin~iiy be ~tt~hçd to a patient for an PxtP.n~1PA period, typically 24-48 hours. The c--lh~,r carrier is advantageouslyconstructed as a single proce~ 1 use disposable device; it is ideally constructed to accept illl~ a.l~f~bly a vadety of commercially available c~
The invention enables a practitioner to insert a flexible c~ k~. tube into either lung of a patient in one smooth motion without risk of co..~...;oa~i( n or infection and without ~ccict~n~e from others. ~ itiQn~11y, a practitioner is able to activate vacuum 1)~S~U1~ with either hand and without ~ t~nce from others.
A standard flexible tr~chP~1 suctioning c~hrlP~ tube is ~tt~hP11 at the ph~llal (pr~u~;~;o~ r) end to a fitting cylinder for insertion into a vacuum source.
The cylinder in~1~1des an offset ol)el~ing which when plugged transfers co... ~ ti-~n of the vacuum pressure from outside the C~lhr.l~.. - to the intPrn~1 lumen of the CA~ el. The distal (patient) end of the c~thPter tube is structured to permit l~,~halOly secretions to be suctioned into the lumen of the c~thPter tube.
WO 9~/u9082 ~ pCrlUS94110505 ~ --5-The c~thP.ter tube is slidable len~ ~ise through a passageway in a multi-function manifold positioned at the distal end of the a~p~lus. The ma~ufold preferably in~ de.s a port at the distal end for ~tt~rhmPnt to and co.. u,i~ tion with an indwelling inh~b~tion device, such as a t~chP~l tube, Fn-lot~chP~l tube or S naso~la~ eal tube. The manifold also ~-c~dbly in~ es a vçntil~tin~ stmcture extending radially from and in fluid co"""ll"ic~tinn with the p~s~geway, for selectively introducing ambient air, ~JAygP~ ~ air and other l1~F1~ eUI;~- gasses into the lr~ lOly system of the patient. Other conduits may also be provided for the intro~ctinn of other suitable gases and lavage solution~ to the ~e~ oly system.
Specific~lly, this invention provides an advantageous ventil~tion circuit adapter for int~ e.ing a suction c~ with an i..lul)~lion device. The adapter may be vi~ lbed as comprising two major colllpon.,.lls; .~l-ecir.c~lly, a manifold assembly and a ç~ e, carrier. In pr~tire~ the adaptor may be assoc,aled in a p~ ~ or kit with one or more c~ le~ ely, a manifold assembly may be ~sociqfed with a plurality of cn~ le~ calTiers.
The manifold g~ner~lly has a body with an open i~ ior. A distal end portion of the body is adapted to couple with an i--~ ion device. A p~ nal end portion of the body is formed as an open port defined by a co.~ ous wall.
The manifold may take various forms, but its p~ùk"llal end portion should be a~lu~ ly axially ~lignP~ with its distal end portion so that a cathPtPr may be inserted through the plu~ihllal end portion to exit from the distal end portion. A
directi~nl~l barrier is carried by the p~u~llllal end portion of the manifold assembly. It is constructed and a-lanEed to effect a seal against fluid flow through the open interior of the manifold lc,wal~s the pl~il,lal end portion but to pass a c~th~tPr introduced through the ~JlU~illlal end portion.
I~f~ly, the &~;~ l barrier is configured to be "Iselled in the plU~Ulllal end portion in sealing relationship with the open interior, and colll~lises a nor n~lly closed valving structure. The normally closed valve structure may beconstructed and arranged to effect a sliding seal a.l, .lge~ent with the ~-xt~.rn~l surface of a c~thP.ter passed through the body of the manifold; that is, from the p~U~ end portion towards the distal end portion through the valve structure.
2 1 9 9 4 7 9 PCTIUS94/lOS05 ;- "S, t' '- -6-Preferably, the valve and c~ lP~ carrier are mllt~l~lly adapted to effect this sliding seal. The valve structure may carry ~l~PtP~ction means constructed and ~ gP~ to signal the precise location of the tip of a c~tllPter positioned within the valve structure. For example, these means may signal, by resi~t~nre to travel or sound, the p,c;sellce of the tip when it is moved to the pio~lily of the valve stlucture from a location closer to the distal end portion of the manifold ~sembly.
The manifold assembly desirably inrln-1Ps a vPnti1~tioî~ port in fluid flow co.. ~ tion with the open interior of the manifold body. The central axis ofthe ventil~tion port will onli~ ;ly be oriented transverse the central axes of the pçuxilllal end portion and the distal end portion of the manifold. A lavage portmay also be provided in fluid flow co---...~ ir~ti~ n with the open interior. The central axis of the lavage port should also be oriPnte~l transverse the central axes of the ~ al end portion and the distal end portion.
The ~ .Ihr~er carrier typically inrlnde~ a leading end portion adapted to couple with the ~lo~ al end portion of the manifold and a trailing end portion C~lyillg a c~ rle~ introducer structure. The introducer structure is constructedand arranged to intPrf~çe with the directional barrier when the leading end portion of the carrier is coupled with the plù~ lal end portion of the manifold. For exam. ple, it may colllp~ise an introducer tip constructed as a continuous wall to define an interior passageway configured to receive and pass a c~thPter and an ~xtt~.rior surface configured to in~erf~re with the directional barrier. The directional barrier is further preferably structured to effect a resilient seal against an intPrn~l surface of the continuous wall. The interior passageway may include an entry constmcted and ~rrAngP~ to effect a sliding seal with the exterior surface of a ç~theter. In any event, the exterior surface of the intrûducer tip and the directional baIrier are mnh~lly ~ pt~P~l to effect a sealed rel~tion~hir when the leading end portion of the c--~h~le~ carrier is coupled with the plo~ al end portion of the manifold body.
The directional barrier may be structured to effect a resilient seal both against an intPrn~l surface of the open interior of the manifold body and between the ~JlUXilllal end portion of the body and the catheter carrier.
w096~0go82 2199~79 P~s~41l0~0s A fluid collector may be carried by the trailing end portion of the ÇA~ e~
carrier. This collector functions to ~ c~m~ tP sputum fluids and the like wiped from a c~ er as it is withdrawn through the barrier seal. In one embo~imP.nt the collector in~ des a chamber poeitilmPd in ~ v~llal~ axial ~1ignmP.nt with 5 the distal end portion ol)~o~ile the manifold with respect to the leading end portion. A ~lv~ al closing mPn~ber for the ch~mber carries an entry a~lux;..~ ly axially aligned with the introducer tip. The closing mPmher may be structured to effect a sliding seal with the exterior surface of a c~thP.tP.r.
The çh~mber is desirably structured as a hollow cylin-lnt~.~l extPn.~ion from the trailing end portion of the carrier. The closing member is ~le~ b1y structured as an end panel of the eYtpn~ion with a central o~el~ing ~ rted to receive a c-11.r.l~J in friction-slipping engagement. The term "friction slipping," as used in this disclosure, refers to a ~litl~ble association in which the exterior surface of the ç.l1.P1er is engaged about its cih-;ulllfe~llce by the interior surface of the central opening of the end panel. Fluids arlhPring to the ç~thP.ter are thus removed by a wiping action as the c-l1.r,l~,~ is withdrawn through the o~,nin~. The end panelcollvel iel~lly comprises a removable cap structured and arranged to effect a sealed closure of the cy1in(1rir~1 extPn~ion In use, the manifold assembly is i,lt~l~osed b~lweel a patient's indwelling tube at the distal end of the manifold and a vPnti1~ting circuit. These junctions preferably embody a swivel configuration to permit left or right bedside p1~ce.mPnt of the VPntil~tic)n cil~;uill~r, and free rotation of the ventil~tinn circuit with patient head movement to reduce the risk of e~t~-b~ti~n.
The directinn~1 barrier may be configured as an elongate ples~u,~ and sterility barrier, and the normally closed valve may be in the shape of a duckbill, with a normally closed central ~)~,~LU1~ interposed within the p~ geway of the manifold. Whether the barrier is structured to include an a~lu,e of elongate transverse ~limPn~ion or a simple slit in a membranous end of the barrier wall, the barrier in comhin~ti~n with the adapter assembly provides an effective seal against patient expectoration, co--~ mi~ti~n and plC;S:iUl~ lP~k:~ge.
The c~ er carrier may be configured as an adapter ~semh1y su~oullding the c~ er, inr.~ ing an introducer tip and a concPnt~i~ outer introducer housing WO9GI~5~2 . ~.' PCl[lUS94/10505 2 1 9 9 ~ 7 g c~ nnP~tecl at one end by an adapter base. The introducer ho--xing fits snugly over the outside of the p~ al end of the manifold. As the introducer housing is slid over the manifold, first coupling structure carried by the external surface of the manifold engages second coupling structure associated with the intPrn~l wall of the introducer housing. The first and second coupling structures are m~ lly ~ rtP~l to allow the prartitioner to slide the adapter assembly and manifold toward one al~ulhel- until the manifold is seated against the adapter base. Then the housing is rotated with respect to the adapter to positively lock the adapter and manifold together during use of the device.
The introducer housing may be slid over the p~llal end of the manifold.
An initial sterile barrier is lh~.~y created. After the initial barrier is created, the introducer housing is further slid toward the manifold, causing the introducer tip to pe~ e the al~elLul~ of the directional barrier. Though this penPtr~tion may prel;...;.-~.;ly partially co,llpl~,.llise the al)elLul~ seal, the initial sterile barrier 15 bt;lweel~ the manifold and adapter ",~ c a closed-system env~ ..el~l within the manifold. After the introducer tip has p~n~ led the directional barrier, thec~thPter can be advanced, with ...i~ l frictional lGs;xl;~-ce, through the manifold and indwelling tube into either lung of the patient.
Once the c~ ler and adapter are ~tt~rhPA to the manifold, a presuction saline lavage is typically introduced through the lavage port in the manifold which directs the lCS~ toly secretion flow into the patient tube through the distal end of the manifold. The lavage port is ~ul~oserully located immPAi~tPly ~~jacPnt to the patient tube and with a non-perpen-lir~ r fluid injection angle so as to optimally direct the saline flow into the patient tube with little risk of back flow into the ventil~tion circuit. One p,ere,l~d manifold design inco,~ dles a window through which a practitioner may view the c~ ler, its suctioned conle~ and any depth ...~.l~;.~g~i which may be printed on the c~ rlel.
While the practitioner is yelro~ g the evacuation procedure, the C~l~.rler may be ~ P~lly inserted and ret~rtP~ with selective introduction of lavage fluidthrough a lavage port on the manifold. The manifold is configured to prevent lavage fluid from ~ ining through the ventil~tic n port, obviating the need for the w096/09082 219g47~ PCrfUS94110505 g manifold to be tilted during lavage and ~ tby averting the potential for ieconnpctinn of the manifold from the indwelling en~ot~ch~l tube.
Upon repe~te~ adv~n~Gm~nt and retr~tion of the c~thPter during an evacuation procedure, undesired ~ t secretions are prevented from flowing t~ S into the ventil~tit n port or back toward the patient. Such sec-~ions are squeegeed off of the extP~n~l surface of the c~ 1e~ during retraction.
The squeegee function is accomplit~h~A by a wiper seal snugly su.~ ding the c~theter within the pru,~ al end of the adapter assembly. The wiper seal hastwo ~lh~ functions: to clean the e~tP-~n~l c .1~ wall.during retraction so as to10 ~ . practitioner exposure to patient co--li~i-l~; and to ~-.~ l;-i,- a plG:i~iUl~;
seal around the c~lht~le~ ~ en~ a continuolls closed, leak tight ventil~tion circuit. The prGfelred wiper seal configuration interf~es with the ~ .Iht-~~ . tube with low frictional lG~ e, facilit~tin~ facile c~th~ter illsG~lioll.
A sputum collector co",~t~l",ent is located b~;Lw~ll the wiper seal and the base of the adapter to accum~ tP the unde~iltd sec,~lio,ls. The sputum collectoror trap has two plUllaly funetion~. It traps the wiper seal bclweell the wiper trap and the adapter housing, and acts as a c~thPtP.r guide during insertion and retraction of the c~ll.~ ~ -. -Upon completion of an evacuation procedure, a pra~;~iLionel retracts the c~ll.ete~. In some ~n~ngPmP.nt~, a structure, such as a flare at the distal tip of the c~ ter, catches against a trap wall n~luwhlg in the c~ ter passageway within the introducer tip. This fiare to trap wall contact further enh~nres and ...~
the closed-system envLu,llnenl within the manifold by providing a positive stop which prevents a practitioner from inadv~.lelltly rPtr~rting a c.~ from the manifold and ç~lhrler adapter.
After the pr~rtiti-~ner has pelr~,l",ed the l~LatOly evacuation pl~JCedUle, the introducer housing may be axially rotated in the diIection o~ûsi~e to the direction it was turned at the beg;i-~-h~g of the procedure, lhe~l)y to decouple the adapter assembly so that it can be retracted from the manifold.
As the adapter assembly is being rPtr~ctecl from the manifold, the introducer hon.~in~ I~IAh~ ;n~: a closed-system seal, even as the introducer tipwithin is pulled through the directional barrier. After the ~e~lul~ in the direction~1 barrier is closed, lhG1GI~Y ..~in~ ;ng a ~1CS~ G and sterility bar~ier, the introducer housing is retr~ct~l ~ ul~ally off from the manifold. The single use c~ lr. and adapter assembly may then be dropped onto the sterile field barrier atop the patient, together with the surgical gloves, and the sterile field may be wrapped around the gloves, c~ el~ and adapter assembly and discarded a~l~lialely, leaving the closed-system, single-patient manifold in place for later multiple uses.
A dust cap, typically tethered to the manifold, may be placed over the pl~ illlal end of the manifold bGlweell suction procedures. The dust cap acts as a ~ le~;Li~e sterile barrier bGLweell the suction procedures as well as a seal against P~S~U1G dirr.,.Glllials across the manifold to ~ e.lL back flow through the normally closed direction~1 barrier.
It is ~ignific~nt that throughout the e~ ly of a lc~il~lol y evacuation procedures, a sterile, closed-system environment is ...~ d within the manifold. This invention thus makes it possible for such re~ ly e~.c.~l;on pl~celulGs to be accomplished willwul the need for ancillary p~, ~on~el ~ ct~nce.
An individual n,~)ild1l)ly nurse or terhnici~n can pGlro~ the entire procedure.
Further, it is si~-il;c ~.~1 that this invention provides means wl~ Gl)y throughout the enli~ly of such procedures, ongoing o,.ygelldlion or other venti1~tion of the patient can be ~-~ ed, wiLlloul the need for l~led disconnection, connection or other moving of vçnti1~ting tubes and other ~n~ ry ~ui~llle~
It is also ~ignifi~nt that the manifold, comprising the more costly portion of the adapter of this invention, un~tlllsi~ely remains ~ h~1 to the patient andis reusable for numerous additional suctioning procedures with single-use c~l1.e1 and carrier ~emh1i~s of relatively nlq.gligihl~ se.
BRIEF DES~:~llON OF TH~ T~ T USTRAl~l~ DRAWINGS
In the dlawillgS, which illustrate what is ~iull~n~ly regarded as the best mode for câllyiu~g out the invention:
WO g6109082 PCTIUS94110505 ~ 79 E;IG. 1 is a partially exploded and partially broken away cross-sectiQn~
view in elevation of a pl~f~l~d embo-iimPnt of the invention in fli~A~semble~
- con-1iti~n;
FIG. 2 is an enlar~e,l.e..l of a portion of FIG. l;
S FIG. 3 is a view in elevation taken on the lGr~ nce line 3-3 of FIG. 2;
FIG. 4 is a view simil~ to FIG. 1, but showing the components in assembled con-liti-n;
FIG. 5 is a partially exploded and par~ally broken away cross-sectional view similar to FIG. 1 of an A1~ -A~ e embo~limPnt of the invention; and FIG. 6 is a view similar to FIG. 5, showing the co~ onelll~ in assembled con-liti~ n.
DETAILED DESCRIPIIQN OF THE PREFERRED El!.D3ODIMENT
Figures 1-4, illnstrAtP. one confi~ulalion of a device, clesi~nAI~A ~P.nP.rAlly 100, embodying the invention. A manifold assembly, de~ A~P~d generally 105, comprises a body 110 with a distal end 115 and a ~JIU~illlal end 120. The body 110 def~es a space 125 belween the distal end 115 and ~ llal end 120. A
lavage port 130 located on the body 110 of the manifold assembly 105 opens into and is in co-.~ irAtion with the manifold space 125. .Simil~rly, a ventil~tir)n port 135 located on the body 110 is in cc""",l-~ tion with the manifold space 125. Tl~c~t~ at the distal end 115 of the body 110 is an endol~A~-hPAl port 140 o~ening toward the patient and ~AttArhAble to an indwelling ~lxture (not shown),such as a tr~hPA1, endotrA~hPAl or nasu~hal~llgeal tube.
A cap 145, capable of covering the ~ .ulal end 120 of the body 110, may be AttA('~hfyi to the body 110 with a tether 150. Situated within the space 125 of the body 110 is a directional barrier 155 preferably formed of a pliant, durable, rubber-like mAtP.riAl with strong riim~Pn~iQnal memory. The directional barrier 155 inrhldes a central a~ u~e 157. The direction~l barrier 155 is seated around its entire cross-sec~;u~-Al ~ hely against a rim 160 e~tPn~ling inwardly from the intern~l wall of the body 110. The barrier 155 and the rim 160 intP.~ce in a ~.,A~ f . that achieves a sealing and anciloling of the directional barrier 155 relative to the body 110. A seal P.~tf.n~ion 165 may protrude slightly from the directional WO 96/09082 PCI~/US94110505 2~ 9 ~ 79 barrier 155 axially beyond the proximal end 120 of the body 110 to provide itir)n~l sealing effect between the cap 145 and the body 110 when the cap 145 is in position to cover the ~ru~iulal end 120 of the body 110.
At least one positioning and locking post 170 extends radially uulwald from the body 110 of the manifold assembly 105. The post 170 intP~CtS with a locking '' ch~nnPl 175 formed in the intern~l wall of the introducer hon~ing 180 of a ç;~ r,~
adapter 185, as illl-st~tP~l more clearly in Figure 2. The ch~nnPl 175 çxt~P.n~ls aYially from the adapter front 190 in the direction of the adapter base 195, prûviding relative positioning of the manifold assembly 105 and the c ll.~te~
adapter 185. The c.h~nnPl 175 then continues ci~.;u,llfelGlllially at a~lu~ ely a right angle from the aYially directed çh~nnP.l 175, providing a means of locking the manifold assembly 105 and the c~ lP~ adapter 185 together when the post 170 has been moved axially and then radially within the ch~nnPl 175. The seal ~x~ iOn 165 is shown configured to seal against the intP.rn~l wall of the introducer housing 180 as the c-'1. te~ adapter 185 and manifold assembly 105 are in the process of being assembled. The seal eYten~ n 165 is further structured to seal against the adapter base 195 when the c~theter adapter 185 is locked to m~nifold assembly 105. In this ~tt~hPd position, the resiliP-n~ of the seal eYtton~ion 165 biases the adapter 185 aYi~lly to Ill~ locking 1:J1GS~;U1~ between the locking post 170 of the manifold ~em~ly 105 and the ch~nnPl 175 of the introducer housing 180.
The c~ e~ adapter 185 compri~es an introducer tip 200 ~
conrPntric with and inside of the introducer housing 180. The introducer tip 200is seated ~in~t and may be formed integr~lly with the adapter base 195. A
c~thP.tP.r passageway 205 is formed through the length of the introducer tip 200, opening at the leading edge 210 and through a c~l.rle, opening 215 in the adapter base 195. The c~ .ele~ opening 215 may be formed with a cross-sectional ~limen~ion slightly larger than but corresponding to the outside cross-sectit n~1 ~limen~ion of a tracheal suctioning c~ r,l~ 220.
Trap walls 225 extend axially from, and are formed integ~lly with, the adapter base 195. A pliant and resilient washer-like wiper seal 230 with a hole 233 Ill~lGlluvugh is placed against the distal edge 235 of the trap walls 225. A
WO 96109082 21 9 9 ~ 79 PCTJUS94110505 ~ f .
trap cap 240 is Att~ch~l to the trap walls 225 and holds the wiper seal 230 in place. The trap cap 240 inrl~l(les a ~u~l)GlL opening 245 which provides c~
guidAnr,e and relief of stIain on the c~ lel 220 imposed by non-axial forces encuul.L.~d during insertion and retraction of the c.~lh~l~ . 220. In combination, S the wiper seal 230, the trap cap 240 and the trap wall 225 cûnlli~ul~ to the sterility and ~ S~ulG barrier function of the manifold 185 during use. The trap walls 225, logGll,er with the wiper seal 230 and the trap cap 240, defme a sputum collector 250.
Upon retraction of the c~thPtPr 220, sputum, phlegm and other undes~d lGs~ y secretions are sq~leegePd from the eYtp~rn~l surface of the c~thPtpr 220 by the wiper seal 230. The ~liAmeter of the hole 233 is desirably sized slightlysmaller than the outer ~ m-o,ter of the c~thetr.r 220 to fr~ilitAtP. this function.
These undesired ~ ul~ liquids are then di~led into the sputum collector 250 where they are retained from lP~k~ge back toward the patient or out toward the ~G~ihaLo~y practitioner. With the practitioner being e~lui~ed with protective hand ware and the patient being covered by a sterile field barrier under the retrArt~l C~Ih~(GI 220, ~-lequ~te ~n~leclion from cross-co~ l i( n is lll~.~y achieved.
The c-~lh~le~ passageway 205 na.,uws at a re~ çing con~trirtcr 255 near the c~ ler opening 215. A flare 260 at the c~th~t~r nozzle 265 catches against the re~ring con~trirtor 255 upon retraction of the c~th~t~Pr 220. The embodiment t~tyl by Figure 6 provides a c~he~e. advancer 270. A prActitinner can press the walls of the advancer 270 down upon a c~theter 220 for selectiveIy advancingand ~ CI the c~ er 220. In this fashion, the practitioner can manipulate the ç~thr.ter wilhoul touching it and wi~.Jul the need for special hand ware.
As best shown by Figures 4 and 6, the device 100 and its l~e~;LivG
co~ onenls allow a ~ alOly prArtitioner to ...~ a closed-system within the single-patient, mllltiple use manifold assembly lOS throughout attachment of theç-l1.~le~ adapter 185 to the manifold assembly lOS, evacuation of a m~AirAl patient through ambidextrous ActllAtinn of the vacuum plGS~ulG by selectively plllg~ing an ~e~ g 272 in an actuator cylinder 274, retraction of the t~rhPAl c~ le- 220 and detA~hmt-nt of the single-use, disposable CAtllPt~r adapter 185. The practitioner may then, with ...i,~i...Al waste and cost, discard the cAth~ter 220 and adapter WO 9~ P'~ r ~ PCT/US94110S05 21~g~7~9 _14_ structure 185 and place the cap 145 over the ~ al end 120 of the manifold assembly 105 until next use, leaving no partially obstructed c~th~t~.r, plastic envelope and complicated valve structure to inlGlreIG with other procedures and ry equipment.
S The present invention may be embodied in other cpe~ific forms wilhouLde~alLing from its spirit or ecce~ l c-h~r~cteri.cti~s Further objects and advantages of this invention will becomP a ~ Glll from a con~i~ler~ti~n of the drawings and e~ esç-;p!;~)n of it. The desçrihed embo~lim~ntc are to be considered in all respects only as i111-str~tive, and not restrictive. The scope of the invention is, t~ rcJlG~ in~ t~ by the a~pended claims, rather than by the rolGgoing desr-rirtion. All ch~ng,o.s which come within the mP~ning and range ofequivalency of the claims are to be embraced within their scope.
The manifold assembly desirably inrln-1Ps a vPnti1~tioî~ port in fluid flow co.. ~ tion with the open interior of the manifold body. The central axis ofthe ventil~tion port will onli~ ;ly be oriented transverse the central axes of the pçuxilllal end portion and the distal end portion of the manifold. A lavage portmay also be provided in fluid flow co---...~ ir~ti~ n with the open interior. The central axis of the lavage port should also be oriPnte~l transverse the central axes of the ~ al end portion and the distal end portion.
The ~ .Ihr~er carrier typically inrlnde~ a leading end portion adapted to couple with the ~lo~ al end portion of the manifold and a trailing end portion C~lyillg a c~ rle~ introducer structure. The introducer structure is constructedand arranged to intPrf~çe with the directional barrier when the leading end portion of the carrier is coupled with the plù~ lal end portion of the manifold. For exam. ple, it may colllp~ise an introducer tip constructed as a continuous wall to define an interior passageway configured to receive and pass a c~thPter and an ~xtt~.rior surface configured to in~erf~re with the directional barrier. The directional barrier is further preferably structured to effect a resilient seal against an intPrn~l surface of the continuous wall. The interior passageway may include an entry constmcted and ~rrAngP~ to effect a sliding seal with the exterior surface of a ç~theter. In any event, the exterior surface of the intrûducer tip and the directional baIrier are mnh~lly ~ pt~P~l to effect a sealed rel~tion~hir when the leading end portion of the c--~h~le~ carrier is coupled with the plo~ al end portion of the manifold body.
The directional barrier may be structured to effect a resilient seal both against an intPrn~l surface of the open interior of the manifold body and between the ~JlUXilllal end portion of the body and the catheter carrier.
w096~0go82 2199~79 P~s~41l0~0s A fluid collector may be carried by the trailing end portion of the ÇA~ e~
carrier. This collector functions to ~ c~m~ tP sputum fluids and the like wiped from a c~ er as it is withdrawn through the barrier seal. In one embo~imP.nt the collector in~ des a chamber poeitilmPd in ~ v~llal~ axial ~1ignmP.nt with 5 the distal end portion ol)~o~ile the manifold with respect to the leading end portion. A ~lv~ al closing mPn~ber for the ch~mber carries an entry a~lux;..~ ly axially aligned with the introducer tip. The closing mPmher may be structured to effect a sliding seal with the exterior surface of a c~thP.tP.r.
The çh~mber is desirably structured as a hollow cylin-lnt~.~l extPn.~ion from the trailing end portion of the carrier. The closing member is ~le~ b1y structured as an end panel of the eYtpn~ion with a central o~el~ing ~ rted to receive a c-11.r.l~J in friction-slipping engagement. The term "friction slipping," as used in this disclosure, refers to a ~litl~ble association in which the exterior surface of the ç.l1.P1er is engaged about its cih-;ulllfe~llce by the interior surface of the central opening of the end panel. Fluids arlhPring to the ç~thP.ter are thus removed by a wiping action as the c-l1.r,l~,~ is withdrawn through the o~,nin~. The end panelcollvel iel~lly comprises a removable cap structured and arranged to effect a sealed closure of the cy1in(1rir~1 extPn~ion In use, the manifold assembly is i,lt~l~osed b~lweel a patient's indwelling tube at the distal end of the manifold and a vPnti1~ting circuit. These junctions preferably embody a swivel configuration to permit left or right bedside p1~ce.mPnt of the VPntil~tic)n cil~;uill~r, and free rotation of the ventil~tinn circuit with patient head movement to reduce the risk of e~t~-b~ti~n.
The directinn~1 barrier may be configured as an elongate ples~u,~ and sterility barrier, and the normally closed valve may be in the shape of a duckbill, with a normally closed central ~)~,~LU1~ interposed within the p~ geway of the manifold. Whether the barrier is structured to include an a~lu,e of elongate transverse ~limPn~ion or a simple slit in a membranous end of the barrier wall, the barrier in comhin~ti~n with the adapter assembly provides an effective seal against patient expectoration, co--~ mi~ti~n and plC;S:iUl~ lP~k:~ge.
The c~ er carrier may be configured as an adapter ~semh1y su~oullding the c~ er, inr.~ ing an introducer tip and a concPnt~i~ outer introducer housing WO9GI~5~2 . ~.' PCl[lUS94/10505 2 1 9 9 ~ 7 g c~ nnP~tecl at one end by an adapter base. The introducer ho--xing fits snugly over the outside of the p~ al end of the manifold. As the introducer housing is slid over the manifold, first coupling structure carried by the external surface of the manifold engages second coupling structure associated with the intPrn~l wall of the introducer housing. The first and second coupling structures are m~ lly ~ rtP~l to allow the prartitioner to slide the adapter assembly and manifold toward one al~ulhel- until the manifold is seated against the adapter base. Then the housing is rotated with respect to the adapter to positively lock the adapter and manifold together during use of the device.
The introducer housing may be slid over the p~llal end of the manifold.
An initial sterile barrier is lh~.~y created. After the initial barrier is created, the introducer housing is further slid toward the manifold, causing the introducer tip to pe~ e the al~elLul~ of the directional barrier. Though this penPtr~tion may prel;...;.-~.;ly partially co,llpl~,.llise the al)elLul~ seal, the initial sterile barrier 15 bt;lweel~ the manifold and adapter ",~ c a closed-system env~ ..el~l within the manifold. After the introducer tip has p~n~ led the directional barrier, thec~thPter can be advanced, with ...i~ l frictional lGs;xl;~-ce, through the manifold and indwelling tube into either lung of the patient.
Once the c~ ler and adapter are ~tt~rhPA to the manifold, a presuction saline lavage is typically introduced through the lavage port in the manifold which directs the lCS~ toly secretion flow into the patient tube through the distal end of the manifold. The lavage port is ~ul~oserully located immPAi~tPly ~~jacPnt to the patient tube and with a non-perpen-lir~ r fluid injection angle so as to optimally direct the saline flow into the patient tube with little risk of back flow into the ventil~tion circuit. One p,ere,l~d manifold design inco,~ dles a window through which a practitioner may view the c~ ler, its suctioned conle~ and any depth ...~.l~;.~g~i which may be printed on the c~ rlel.
While the practitioner is yelro~ g the evacuation procedure, the C~l~.rler may be ~ P~lly inserted and ret~rtP~ with selective introduction of lavage fluidthrough a lavage port on the manifold. The manifold is configured to prevent lavage fluid from ~ ining through the ventil~tic n port, obviating the need for the w096/09082 219g47~ PCrfUS94110505 g manifold to be tilted during lavage and ~ tby averting the potential for ieconnpctinn of the manifold from the indwelling en~ot~ch~l tube.
Upon repe~te~ adv~n~Gm~nt and retr~tion of the c~thPter during an evacuation procedure, undesired ~ t secretions are prevented from flowing t~ S into the ventil~tit n port or back toward the patient. Such sec-~ions are squeegeed off of the extP~n~l surface of the c~ 1e~ during retraction.
The squeegee function is accomplit~h~A by a wiper seal snugly su.~ ding the c~theter within the pru,~ al end of the adapter assembly. The wiper seal hastwo ~lh~ functions: to clean the e~tP-~n~l c .1~ wall.during retraction so as to10 ~ . practitioner exposure to patient co--li~i-l~; and to ~-.~ l;-i,- a plG:i~iUl~;
seal around the c~lht~le~ ~ en~ a continuolls closed, leak tight ventil~tion circuit. The prGfelred wiper seal configuration interf~es with the ~ .Iht-~~ . tube with low frictional lG~ e, facilit~tin~ facile c~th~ter illsG~lioll.
A sputum collector co",~t~l",ent is located b~;Lw~ll the wiper seal and the base of the adapter to accum~ tP the unde~iltd sec,~lio,ls. The sputum collectoror trap has two plUllaly funetion~. It traps the wiper seal bclweell the wiper trap and the adapter housing, and acts as a c~thPtP.r guide during insertion and retraction of the c~ll.~ ~ -. -Upon completion of an evacuation procedure, a pra~;~iLionel retracts the c~ll.ete~. In some ~n~ngPmP.nt~, a structure, such as a flare at the distal tip of the c~ ter, catches against a trap wall n~luwhlg in the c~ ter passageway within the introducer tip. This fiare to trap wall contact further enh~nres and ...~
the closed-system envLu,llnenl within the manifold by providing a positive stop which prevents a practitioner from inadv~.lelltly rPtr~rting a c.~ from the manifold and ç~lhrler adapter.
After the pr~rtiti-~ner has pelr~,l",ed the l~LatOly evacuation pl~JCedUle, the introducer housing may be axially rotated in the diIection o~ûsi~e to the direction it was turned at the beg;i-~-h~g of the procedure, lhe~l)y to decouple the adapter assembly so that it can be retracted from the manifold.
As the adapter assembly is being rPtr~ctecl from the manifold, the introducer hon.~in~ I~IAh~ ;n~: a closed-system seal, even as the introducer tipwithin is pulled through the directional barrier. After the ~e~lul~ in the direction~1 barrier is closed, lhG1GI~Y ..~in~ ;ng a ~1CS~ G and sterility bar~ier, the introducer housing is retr~ct~l ~ ul~ally off from the manifold. The single use c~ lr. and adapter assembly may then be dropped onto the sterile field barrier atop the patient, together with the surgical gloves, and the sterile field may be wrapped around the gloves, c~ el~ and adapter assembly and discarded a~l~lialely, leaving the closed-system, single-patient manifold in place for later multiple uses.
A dust cap, typically tethered to the manifold, may be placed over the pl~ illlal end of the manifold bGlweell suction procedures. The dust cap acts as a ~ le~;Li~e sterile barrier bGLweell the suction procedures as well as a seal against P~S~U1G dirr.,.Glllials across the manifold to ~ e.lL back flow through the normally closed direction~1 barrier.
It is ~ignific~nt that throughout the e~ ly of a lc~il~lol y evacuation procedures, a sterile, closed-system environment is ...~ d within the manifold. This invention thus makes it possible for such re~ ly e~.c.~l;on pl~celulGs to be accomplished willwul the need for ancillary p~, ~on~el ~ ct~nce.
An individual n,~)ild1l)ly nurse or terhnici~n can pGlro~ the entire procedure.
Further, it is si~-il;c ~.~1 that this invention provides means wl~ Gl)y throughout the enli~ly of such procedures, ongoing o,.ygelldlion or other venti1~tion of the patient can be ~-~ ed, wiLlloul the need for l~led disconnection, connection or other moving of vçnti1~ting tubes and other ~n~ ry ~ui~llle~
It is also ~ignifi~nt that the manifold, comprising the more costly portion of the adapter of this invention, un~tlllsi~ely remains ~ h~1 to the patient andis reusable for numerous additional suctioning procedures with single-use c~l1.e1 and carrier ~emh1i~s of relatively nlq.gligihl~ se.
BRIEF DES~:~llON OF TH~ T~ T USTRAl~l~ DRAWINGS
In the dlawillgS, which illustrate what is ~iull~n~ly regarded as the best mode for câllyiu~g out the invention:
WO g6109082 PCTIUS94110505 ~ 79 E;IG. 1 is a partially exploded and partially broken away cross-sectiQn~
view in elevation of a pl~f~l~d embo-iimPnt of the invention in fli~A~semble~
- con-1iti~n;
FIG. 2 is an enlar~e,l.e..l of a portion of FIG. l;
S FIG. 3 is a view in elevation taken on the lGr~ nce line 3-3 of FIG. 2;
FIG. 4 is a view simil~ to FIG. 1, but showing the components in assembled con-liti-n;
FIG. 5 is a partially exploded and par~ally broken away cross-sectional view similar to FIG. 1 of an A1~ -A~ e embo~limPnt of the invention; and FIG. 6 is a view similar to FIG. 5, showing the co~ onelll~ in assembled con-liti~ n.
DETAILED DESCRIPIIQN OF THE PREFERRED El!.D3ODIMENT
Figures 1-4, illnstrAtP. one confi~ulalion of a device, clesi~nAI~A ~P.nP.rAlly 100, embodying the invention. A manifold assembly, de~ A~P~d generally 105, comprises a body 110 with a distal end 115 and a ~JIU~illlal end 120. The body 110 def~es a space 125 belween the distal end 115 and ~ llal end 120. A
lavage port 130 located on the body 110 of the manifold assembly 105 opens into and is in co-.~ irAtion with the manifold space 125. .Simil~rly, a ventil~tir)n port 135 located on the body 110 is in cc""",l-~ tion with the manifold space 125. Tl~c~t~ at the distal end 115 of the body 110 is an endol~A~-hPAl port 140 o~ening toward the patient and ~AttArhAble to an indwelling ~lxture (not shown),such as a tr~hPA1, endotrA~hPAl or nasu~hal~llgeal tube.
A cap 145, capable of covering the ~ .ulal end 120 of the body 110, may be AttA('~hfyi to the body 110 with a tether 150. Situated within the space 125 of the body 110 is a directional barrier 155 preferably formed of a pliant, durable, rubber-like mAtP.riAl with strong riim~Pn~iQnal memory. The directional barrier 155 inrhldes a central a~ u~e 157. The direction~l barrier 155 is seated around its entire cross-sec~;u~-Al ~ hely against a rim 160 e~tPn~ling inwardly from the intern~l wall of the body 110. The barrier 155 and the rim 160 intP.~ce in a ~.,A~ f . that achieves a sealing and anciloling of the directional barrier 155 relative to the body 110. A seal P.~tf.n~ion 165 may protrude slightly from the directional WO 96/09082 PCI~/US94110505 2~ 9 ~ 79 barrier 155 axially beyond the proximal end 120 of the body 110 to provide itir)n~l sealing effect between the cap 145 and the body 110 when the cap 145 is in position to cover the ~ru~iulal end 120 of the body 110.
At least one positioning and locking post 170 extends radially uulwald from the body 110 of the manifold assembly 105. The post 170 intP~CtS with a locking '' ch~nnPl 175 formed in the intern~l wall of the introducer hon~ing 180 of a ç;~ r,~
adapter 185, as illl-st~tP~l more clearly in Figure 2. The ch~nnPl 175 çxt~P.n~ls aYially from the adapter front 190 in the direction of the adapter base 195, prûviding relative positioning of the manifold assembly 105 and the c ll.~te~
adapter 185. The c.h~nnPl 175 then continues ci~.;u,llfelGlllially at a~lu~ ely a right angle from the aYially directed çh~nnP.l 175, providing a means of locking the manifold assembly 105 and the c~ lP~ adapter 185 together when the post 170 has been moved axially and then radially within the ch~nnPl 175. The seal ~x~ iOn 165 is shown configured to seal against the intP.rn~l wall of the introducer housing 180 as the c-'1. te~ adapter 185 and manifold assembly 105 are in the process of being assembled. The seal eYten~ n 165 is further structured to seal against the adapter base 195 when the c~theter adapter 185 is locked to m~nifold assembly 105. In this ~tt~hPd position, the resiliP-n~ of the seal eYtton~ion 165 biases the adapter 185 aYi~lly to Ill~ locking 1:J1GS~;U1~ between the locking post 170 of the manifold ~em~ly 105 and the ch~nnPl 175 of the introducer housing 180.
The c~ e~ adapter 185 compri~es an introducer tip 200 ~
conrPntric with and inside of the introducer housing 180. The introducer tip 200is seated ~in~t and may be formed integr~lly with the adapter base 195. A
c~thP.tP.r passageway 205 is formed through the length of the introducer tip 200, opening at the leading edge 210 and through a c~l.rle, opening 215 in the adapter base 195. The c~ .ele~ opening 215 may be formed with a cross-sectional ~limen~ion slightly larger than but corresponding to the outside cross-sectit n~1 ~limen~ion of a tracheal suctioning c~ r,l~ 220.
Trap walls 225 extend axially from, and are formed integ~lly with, the adapter base 195. A pliant and resilient washer-like wiper seal 230 with a hole 233 Ill~lGlluvugh is placed against the distal edge 235 of the trap walls 225. A
WO 96109082 21 9 9 ~ 79 PCTJUS94110505 ~ f .
trap cap 240 is Att~ch~l to the trap walls 225 and holds the wiper seal 230 in place. The trap cap 240 inrl~l(les a ~u~l)GlL opening 245 which provides c~
guidAnr,e and relief of stIain on the c~ lel 220 imposed by non-axial forces encuul.L.~d during insertion and retraction of the c.~lh~l~ . 220. In combination, S the wiper seal 230, the trap cap 240 and the trap wall 225 cûnlli~ul~ to the sterility and ~ S~ulG barrier function of the manifold 185 during use. The trap walls 225, logGll,er with the wiper seal 230 and the trap cap 240, defme a sputum collector 250.
Upon retraction of the c~thPtPr 220, sputum, phlegm and other undes~d lGs~ y secretions are sq~leegePd from the eYtp~rn~l surface of the c~thPtpr 220 by the wiper seal 230. The ~liAmeter of the hole 233 is desirably sized slightlysmaller than the outer ~ m-o,ter of the c~thetr.r 220 to fr~ilitAtP. this function.
These undesired ~ ul~ liquids are then di~led into the sputum collector 250 where they are retained from lP~k~ge back toward the patient or out toward the ~G~ihaLo~y practitioner. With the practitioner being e~lui~ed with protective hand ware and the patient being covered by a sterile field barrier under the retrArt~l C~Ih~(GI 220, ~-lequ~te ~n~leclion from cross-co~ l i( n is lll~.~y achieved.
The c-~lh~le~ passageway 205 na.,uws at a re~ çing con~trirtcr 255 near the c~ ler opening 215. A flare 260 at the c~th~t~r nozzle 265 catches against the re~ring con~trirtor 255 upon retraction of the c~th~t~Pr 220. The embodiment t~tyl by Figure 6 provides a c~he~e. advancer 270. A prActitinner can press the walls of the advancer 270 down upon a c~theter 220 for selectiveIy advancingand ~ CI the c~ er 220. In this fashion, the practitioner can manipulate the ç~thr.ter wilhoul touching it and wi~.Jul the need for special hand ware.
As best shown by Figures 4 and 6, the device 100 and its l~e~;LivG
co~ onenls allow a ~ alOly prArtitioner to ...~ a closed-system within the single-patient, mllltiple use manifold assembly lOS throughout attachment of theç-l1.~le~ adapter 185 to the manifold assembly lOS, evacuation of a m~AirAl patient through ambidextrous ActllAtinn of the vacuum plGS~ulG by selectively plllg~ing an ~e~ g 272 in an actuator cylinder 274, retraction of the t~rhPAl c~ le- 220 and detA~hmt-nt of the single-use, disposable CAtllPt~r adapter 185. The practitioner may then, with ...i,~i...Al waste and cost, discard the cAth~ter 220 and adapter WO 9~ P'~ r ~ PCT/US94110S05 21~g~7~9 _14_ structure 185 and place the cap 145 over the ~ al end 120 of the manifold assembly 105 until next use, leaving no partially obstructed c~th~t~.r, plastic envelope and complicated valve structure to inlGlreIG with other procedures and ry equipment.
S The present invention may be embodied in other cpe~ific forms wilhouLde~alLing from its spirit or ecce~ l c-h~r~cteri.cti~s Further objects and advantages of this invention will becomP a ~ Glll from a con~i~ler~ti~n of the drawings and e~ esç-;p!;~)n of it. The desçrihed embo~lim~ntc are to be considered in all respects only as i111-str~tive, and not restrictive. The scope of the invention is, t~ rcJlG~ in~ t~ by the a~pended claims, rather than by the rolGgoing desr-rirtion. All ch~ng,o.s which come within the mP~ning and range ofequivalency of the claims are to be embraced within their scope.
Claims (58)
1. A ventilation circuit adapter for interfacing a suction catheter with an intubation device, comprising:
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, a proximal end portion of said body being formed as an open port defined by a continuous wall, said proximal end portion being approximately axially aligned with said distal end portion so that a catheter may be inserted through said proximal end portion to exit from said distal end portion, and a directional barrier carried by said proximal end portion, constructed and arranged to effect a seal against fluid flow through said open interior towards said proximal end portion but to pass a said catheter introduced through said proximal end portion, said directional barrier carrying detection means constructed and arranged to signal the presence of the tip of a catheter when said tip is moved to the proximity of said directional barrier from a location closer to said distal end portion; and structural means for associating a catheter with said proximal end, said structural means being releasably connectable to said proximal end portion.
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, a proximal end portion of said body being formed as an open port defined by a continuous wall, said proximal end portion being approximately axially aligned with said distal end portion so that a catheter may be inserted through said proximal end portion to exit from said distal end portion, and a directional barrier carried by said proximal end portion, constructed and arranged to effect a seal against fluid flow through said open interior towards said proximal end portion but to pass a said catheter introduced through said proximal end portion, said directional barrier carrying detection means constructed and arranged to signal the presence of the tip of a catheter when said tip is moved to the proximity of said directional barrier from a location closer to said distal end portion; and structural means for associating a catheter with said proximal end, said structural means being releasably connectable to said proximal end portion.
2. An adapter according to claim 1, wherein said manifold assembly includes a ventilation port in fluid flow communication with said open interior, said ventilation port having a central axis transverse the central axes of said proximal end portion and said distal end portion.
3. An adapter according to claim 2, wherein said manifold assembly includes a lavage port in fluid flow communication with said open interior, said lavage port having a central axis transverse said central axes of said proximal end portion and said distal end portion.
4. An adapter according to claim 1, wherein said directional barrier is configured to be inserted in said proximal end portion in sealing relationship with said open interior and comprises a normally closed valving structure.
5. An adapter according to claim 4, wherein said normally closed valve structure is constructed and arranged to effect a sliding seal with the external surface of a catheter as a said catheter is passed from said proximal end portion towards said distal end portion through said valve structure.
6. An adapter according to claim 4, wherein said directional barrier is structured to effect a resilient seal against an internal surface of said continuous wall of said proximal end portion.
7. An adapter according to claim 6, wherein said manifold assembly includes a ventilation port in fluid flow communication with said open interior, said ventilation port having a central axis transverse the central axes of said proximal end portion and said distal end portion.
8. An adapter according to claim 7, wherein said manifold assembly includes a lavage port in fluid flow communication with said open interior, said lavage port having a central axis transverse said central axes of said proximal end portion and said distal end portion.
9. An adapter according to claim 1, wherein said structural means comprises:
a catheter carrier, including:
a leading end portion adapted to couple with said proximal end portion; and a trailing end portion carrying a catheter introducer structure, said introducer structure being constructed and arranged to interface with said directional barrier when said leading end portion is coupled with said proximal end portion.
a catheter carrier, including:
a leading end portion adapted to couple with said proximal end portion; and a trailing end portion carrying a catheter introducer structure, said introducer structure being constructed and arranged to interface with said directional barrier when said leading end portion is coupled with said proximal end portion.
10. An adapter according to claim 9, wherein said introducer structure comprises:
an introducer tip constructed as a continuous wall to define:
an interior passageway configured to receive and pass a catheter; and an exterior surface configured to interface with said directional barrier.
an introducer tip constructed as a continuous wall to define:
an interior passageway configured to receive and pass a catheter; and an exterior surface configured to interface with said directional barrier.
11. An adapter according to claim 10 wherein said interior passageway is constructed and arranged to effect a sliding seal with the exterior surface of a catheter.
12. An adapter according to claim 10, wherein said exterior surface of said introducer tip and said directional barrier are mutually adapted to effect a sealed relationship when said leading end portion is coupled with said proximal end portion.
13. An adapter according to claim 9, wherein said directional barrier is configured to be inserted in said proximal end portion in sealing relationship with said open interior and comprises a normally closed valving structure.
14. An adapter according to claim 13, wherein said introducer structure comprises:
an introducer tip constructed as a continuous wall to define:
an interior passageway configured to receive and pass a catheter; and an exterior surface configured to interface with said directional barrier.
an introducer tip constructed as a continuous wall to define:
an interior passageway configured to receive and pass a catheter; and an exterior surface configured to interface with said directional barrier.
15. An adapter according to claim 14, wherein said interior passageway includes an entry which is constructed and arranged to effect a sliding seal with the exterior surface of a catheter.
16. An adapter according to claim 14, wherein said exterior surface of said introducer tip and said directional barrier are mutually adapted to effect a sealed relationship when said leading end portion is coupled with said proximal end portion.
17. An adapter according to claim 16, wherein said directional barrier is structured to effect a resilient seal against an internal surface of said continuous wall of said proximal end portion and between said proximal end portion and said catheter carrier.
18. An adaptor according to claim 17, wherein said normally closed valve structure is constructed and arranged to effect a sliding seal with the external surface of a catheter as a said catheter is passed from said proximal end portion towards said distal end portion through said valve structure.
19. An adapter according to claim 17, wherein said manifold assembly includes a ventilation port in fluid flow communication with said open interior, said ventilation port having a central axis transverse the central axes of said proximal end portion and said distal end portion.
20. An adapter according to claim 19, wherein said manifold assembly includes a lavage port in fluid flow communication with said open interior, said lavage port having a central axis transverse said central axes of said proximal end portion and said distal end portion.
21. A ventilation circuit adaptor for interfacing a suction catheter with an intubation device, comprising:
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, a proximal end portion of said body being formed as an open port defined as a continuous wall, said proximal end portion being approximately axially aligned with said distal end portion so that a catheter may be inserted through said proximal end portion to exit from said distal end portion, and a directional barrier carried by said proximal end portion constructed and arranged to effect a seal against fluid flow through said open interior towards said proximal end portion but to pass a said catheter introduced through said proximal end portion; wherein said directional barrier is configured to be inserted in said proximal end portion in sealing relationship with said open interior, and comprises a normally closed valving structure which is constructed and arranged to effect a sliding seal with the external surface of a catheter as a said catheter is passed from said proximal end portion towards said distal end portion through said valve structure;
detection means carried by said valve structure and constructed and arranged to signal the presence of the tip of a catheter positioned within said valve structure when said tip is moved to the proximity of said valve structure from a location closer to said distal end portion; and structural means for associating a catheter with said proximal end, said structural means being releasably connectable to said proximal end portion.
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, a proximal end portion of said body being formed as an open port defined as a continuous wall, said proximal end portion being approximately axially aligned with said distal end portion so that a catheter may be inserted through said proximal end portion to exit from said distal end portion, and a directional barrier carried by said proximal end portion constructed and arranged to effect a seal against fluid flow through said open interior towards said proximal end portion but to pass a said catheter introduced through said proximal end portion; wherein said directional barrier is configured to be inserted in said proximal end portion in sealing relationship with said open interior, and comprises a normally closed valving structure which is constructed and arranged to effect a sliding seal with the external surface of a catheter as a said catheter is passed from said proximal end portion towards said distal end portion through said valve structure;
detection means carried by said valve structure and constructed and arranged to signal the presence of the tip of a catheter positioned within said valve structure when said tip is moved to the proximity of said valve structure from a location closer to said distal end portion; and structural means for associating a catheter with said proximal end, said structural means being releasably connectable to said proximal end portion.
22. A ventilation circuit adapter for interfacing a suction catheter with an intubation device, comprising:
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said incubation device, a proximal end portion of said body being formed as an open port defined by a continuous wall, said proximal end portion being approximately axially aligned with said distal end portion so that a catheter may be inserted through said proximal end portion to exit from said distal end portion, and a directional barrier carried by said proximal end portion, constructed and arranged to effect a resilient seal against an internal surface of said continuous wall of said proximal end portion and between said proximal end portion and a catheter carrier against fluid flow through said open interior towards said proximal end portion but to pass a said catheter introduced through said proximal end portion, wherein said directional barrier is configured to be inserted in said proximal end portion in sealing relationship with said open interior and comprises:
a normally closed valving structure which is constructed and arranged to effect a sliding seal with the external surface of a catheter as a said catheter is passed from said proximal end portion towards said distal end portion through said valve structure, and which carries detection means constructed and arranged to signal the presence of the tip of a catheter positioned within said valve structure when said tip is moved to the proximity of said valve structure from a location closer to said distal end portion; and structural means for associating a catheter with said proximal end, said structural means being releasably connectable to said proximal end portion and comprising:
a catheter carrier, including:
a leading end portion adapted to couple with said proximal end portion; and a trailing end portion carrying a catheter, introduces structure, said introducer structure being constructed and arranged to interface with said directional barrier when said leading end portion is coupled with said proximal end portion and comprising:
an introducer tip constructed as a continuous wall to define:
an interior passageway configured to receive and pass a catheter; and an exterior surface configured to interface with said directional barrier, wherein said exterior surface of said introduces tip and said directional barrier are mutually adapted to effect a sealed relationship when said leading end portion is coupled with said proximal end portion.
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said incubation device, a proximal end portion of said body being formed as an open port defined by a continuous wall, said proximal end portion being approximately axially aligned with said distal end portion so that a catheter may be inserted through said proximal end portion to exit from said distal end portion, and a directional barrier carried by said proximal end portion, constructed and arranged to effect a resilient seal against an internal surface of said continuous wall of said proximal end portion and between said proximal end portion and a catheter carrier against fluid flow through said open interior towards said proximal end portion but to pass a said catheter introduced through said proximal end portion, wherein said directional barrier is configured to be inserted in said proximal end portion in sealing relationship with said open interior and comprises:
a normally closed valving structure which is constructed and arranged to effect a sliding seal with the external surface of a catheter as a said catheter is passed from said proximal end portion towards said distal end portion through said valve structure, and which carries detection means constructed and arranged to signal the presence of the tip of a catheter positioned within said valve structure when said tip is moved to the proximity of said valve structure from a location closer to said distal end portion; and structural means for associating a catheter with said proximal end, said structural means being releasably connectable to said proximal end portion and comprising:
a catheter carrier, including:
a leading end portion adapted to couple with said proximal end portion; and a trailing end portion carrying a catheter, introduces structure, said introducer structure being constructed and arranged to interface with said directional barrier when said leading end portion is coupled with said proximal end portion and comprising:
an introducer tip constructed as a continuous wall to define:
an interior passageway configured to receive and pass a catheter; and an exterior surface configured to interface with said directional barrier, wherein said exterior surface of said introduces tip and said directional barrier are mutually adapted to effect a sealed relationship when said leading end portion is coupled with said proximal end portion.
23. A ventilation circuit adapter for interfacing a suction catheter with an intubation device, comprising:
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, a proximal end portion of said body being formed as an open port defined by a continuous wall, said proximal end portion being approximately axially aligned with said distal end portion so that a catheter may be inserted through said proximal end portion to exit from said distal end portion, and a directional barrier carried by said proximal end portion, constructed and arranged to effect a seal against fluid flow through said open interior towards said proximal end portion but to pass a said catheter introduced through said proximal end portion; and structural means for associating a catheter with said proximal end, said structural means being releasably connectable to said proximal end portion and comprising:
a catheter carrier, including:
a leading end portion adapted to couple with said proximal end portion; and a trailing end portion carrying a catheter introducer structure, said introducer structure being constructed and arranged to interface with said directional barrier when said leading end portion is coupled with said proximal end portion, said introducer structure comprising:
an introducer tip constructed as a continuous wall to define:
an interior passageway configured to receive and pass a catheter; and an exterior surface configured to interface with said directional barrier; and a fluid collector carried by said trailing end portion and including:
a chamber positioned in approximate axial alignment with said distal end portion opposite said manifold with respect to said leading end portion;
a proximal closing member for said chamber with an entry approximately axially aligned with said introducer tip, said closing member being structured to effect a sliding seal with the exterior surface of a catheter.
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, a proximal end portion of said body being formed as an open port defined by a continuous wall, said proximal end portion being approximately axially aligned with said distal end portion so that a catheter may be inserted through said proximal end portion to exit from said distal end portion, and a directional barrier carried by said proximal end portion, constructed and arranged to effect a seal against fluid flow through said open interior towards said proximal end portion but to pass a said catheter introduced through said proximal end portion; and structural means for associating a catheter with said proximal end, said structural means being releasably connectable to said proximal end portion and comprising:
a catheter carrier, including:
a leading end portion adapted to couple with said proximal end portion; and a trailing end portion carrying a catheter introducer structure, said introducer structure being constructed and arranged to interface with said directional barrier when said leading end portion is coupled with said proximal end portion, said introducer structure comprising:
an introducer tip constructed as a continuous wall to define:
an interior passageway configured to receive and pass a catheter; and an exterior surface configured to interface with said directional barrier; and a fluid collector carried by said trailing end portion and including:
a chamber positioned in approximate axial alignment with said distal end portion opposite said manifold with respect to said leading end portion;
a proximal closing member for said chamber with an entry approximately axially aligned with said introducer tip, said closing member being structured to effect a sliding seal with the exterior surface of a catheter.
24. An adapter according to claim 23, wherein said chamber is structured as a hollow cylindrical extension from said trailing end portion, and said closing member is structured as an end panel of said extension with a central opening adapted to receive a catheter in friction-slipping engagement.
25. An adapter according to claim 24, wherein said end panel comprises a removable cap structured and arranged to effect a sealed closure of said cylindrical extension.
26. An adapter according to claim 24, wherein said directional barrier is configured to be inserted in said proximal end portion in sealing relationship with said open interior and comprises a normally closed valuing structure.
27. An adapter according to claim 26, wherein said exterior surface of said introducer tip and said directional barrier are mutually adapted to effect a sealed relationship when said leading end portion is coupled with said proximal end portion.
28. A ventilation circuit adapter for interfacing a suction catheter with an intubation device, comprising:
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device;
and a proximal end portion of said body being formed as an open port defined by a continuous wall;
a catheter carrier, including:
a leading end portion adapted to couple with said proximal end portion; and a trailing end portion carrying a catheter introducer structure; and a directional barrier carried by said proximal end portion, constructed and arranged to effect a seal between said proximal end portion and said carrier, to effect a seal against fluid flow through said open interior towards said proximal end portion, and to pass a catheter introduced through said proximal end portion, said directional barrier carrying detection means constructed and arranged to signal the presence of the tip of a catheter structure when said tip is moved to the proximity of said valve structure from a location closer to said distal end portion;
said introducer structure being constructed and arranged to interface with said directional barrier when said leading end portion is coupled with said proximal end portion.
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device;
and a proximal end portion of said body being formed as an open port defined by a continuous wall;
a catheter carrier, including:
a leading end portion adapted to couple with said proximal end portion; and a trailing end portion carrying a catheter introducer structure; and a directional barrier carried by said proximal end portion, constructed and arranged to effect a seal between said proximal end portion and said carrier, to effect a seal against fluid flow through said open interior towards said proximal end portion, and to pass a catheter introduced through said proximal end portion, said directional barrier carrying detection means constructed and arranged to signal the presence of the tip of a catheter structure when said tip is moved to the proximity of said valve structure from a location closer to said distal end portion;
said introducer structure being constructed and arranged to interface with said directional barrier when said leading end portion is coupled with said proximal end portion.
29. An adapter according to claim 28, wherein said introducer structure comprises:
an introducer tip constructed as a continuous wall to define:
an interior passageway configured to receive and pass a catheter; and an exterior surface configured to interface with said directional barrier.
an introducer tip constructed as a continuous wall to define:
an interior passageway configured to receive and pass a catheter; and an exterior surface configured to interface with said directional barrier.
30. An adapter according to claim 29, wherein said interior passageway includes an entry which is constructed and arranged to effect a sliding seal with the exterior surface of a catheter.
31. An adapter according to claim 29, wherein said exterior surface of said introducer tip and said directional barrier are mutually adapted to effect a sealed relationship when said leading end portion is coupled with said proximal end portion.
32. An adapter according to claim 31, wherein said directional barrier is structured to effect a resilient seal against an internal surface of said continuous wall of said proximal end portion and between said proximal end portion and said catheter carrier.
33. An adapter according to claim 28, wherein said manifold assembly includes a ventilation port in fluid flow communication with said open interior, said ventilation port having a central axis transverse the central axes of said proximal end portion and said distal end portion.
34. An adapter according to claim 28, wherein said manifold assembly includes a lavage port in fluid flow communication with said open interior, said lavage port having a central axis transverse said central axes of said proximal end portion and said distal end portion.
35. An adapter according to claim 28, wherein said directional barrier comprises a normally closed valve structure constructed and arranged to effect a sliding seal with the external surface of said introducer structure.
36. A ventilation circuit adapter for interfacing a suction catheter with an intubation device, comprising:
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, and a proximal end portion of said body being formed as an open port defined by a continuous wall;
a catheter carrier, including:
a leading end portion adapted to couple with said proximal end portion, and a trailing end portion carrying a catheter introducer structure; and a directional barrier carried by said proximal end portion, constructed and arranged to effect a seal between said proximal end portion and said carrier, to effect a seal against fluid flow through said open interior towards said proximal end portion, and to pass a catheter introduced through said proximal end portion;
said introducer structure being constructed and arranged to interface with said directional barrier when said leading end portion is coupled with said proximal end portion, wherein said directional barrier comprises a normally closed valve structure constructed and arranged to effect a sliding seal with the external surface of said introducer structure, and said valve structure carriers detection means constructed and arranged to signal the presence of the tip of a catheter positioned within said valve structure when said tip is moved to the proximity of said valve structure from a location closer to said distal end portion.
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, and a proximal end portion of said body being formed as an open port defined by a continuous wall;
a catheter carrier, including:
a leading end portion adapted to couple with said proximal end portion, and a trailing end portion carrying a catheter introducer structure; and a directional barrier carried by said proximal end portion, constructed and arranged to effect a seal between said proximal end portion and said carrier, to effect a seal against fluid flow through said open interior towards said proximal end portion, and to pass a catheter introduced through said proximal end portion;
said introducer structure being constructed and arranged to interface with said directional barrier when said leading end portion is coupled with said proximal end portion, wherein said directional barrier comprises a normally closed valve structure constructed and arranged to effect a sliding seal with the external surface of said introducer structure, and said valve structure carriers detection means constructed and arranged to signal the presence of the tip of a catheter positioned within said valve structure when said tip is moved to the proximity of said valve structure from a location closer to said distal end portion.
37. A ventilation circuit adapter for interfacing a suction catheter with an intubation device, comprising:
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, a proximal end portion of said body being formed as an open port defined by a continuous wall;
a catheter carrier, including:
a leading end portion adapted to couple with said proximal end portion, and a trailing end portion carrying a catheter introduces structure; and a directional barrier carried by said proximal end portion, constructed and arranged to effect a seal between said proximal end portion and said earner, to effect a seal against fluid flow through said open interior towards said proximal end portion, and to pass a catheter introduced through said proximal end portion;
said introduces structure being constructed and arranged to interface with said directional barrier when said leading end portion is coupled with said proximal end portion; and a fluid collector carried by said trailing end portion and including:
a chamber positioned in approximate axial alignment with said distal end portion opposite said manifold with respect to said leading end portion;
a proximal closing member for said chamber with an entry approximately axially aligned with said introduces tip, said closing member being structured to effect a sliding seal with the exterior surface of a catheter.
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, a proximal end portion of said body being formed as an open port defined by a continuous wall;
a catheter carrier, including:
a leading end portion adapted to couple with said proximal end portion, and a trailing end portion carrying a catheter introduces structure; and a directional barrier carried by said proximal end portion, constructed and arranged to effect a seal between said proximal end portion and said earner, to effect a seal against fluid flow through said open interior towards said proximal end portion, and to pass a catheter introduced through said proximal end portion;
said introduces structure being constructed and arranged to interface with said directional barrier when said leading end portion is coupled with said proximal end portion; and a fluid collector carried by said trailing end portion and including:
a chamber positioned in approximate axial alignment with said distal end portion opposite said manifold with respect to said leading end portion;
a proximal closing member for said chamber with an entry approximately axially aligned with said introduces tip, said closing member being structured to effect a sliding seal with the exterior surface of a catheter.
38. An adapter according to claim 37, wherein said chamber is structured as a hollow cylindrical extension from said trailing end portion, and said closing member is structured as an end panel of said extension with a central opening adapted to receive a catheter in friction-slipping engagement.
39. An adapter according to claim 38, wherein said end panel comprises a removable cap structured and arranged to effect a sealed closure of said cylindrical extension.
40. A ventilation circuit adapter assembly for use with an intubation device, comprising:
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, and a proximal end portion of said body being formed as an open port defined by a continuous wall;
a catheter carrier, including:
a leading end portion adapted to couple with said proximal end portion, and a trailing end portion carrying a catheter introducer structure; and a directional barrier carried by said proximal end portion, constructed and arranged to effect a seal between said proximal end portion and said carrier, and to effect a seal against fluid flow through said open interior towards said proximal end portion;
said directional barrier carrying detection means constructed and arranged to signal the presence of the tip of a catheter structure when said tip is moved to the proximity of said valve structure from a location closer to said distal end portion;
said introducer structure being constructed and arranged to interface with said directional barrier when said leading end portion is coupled with said proximal end portion; and a catheter positioned through said introducer structure, said open interior and said distal end.
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, and a proximal end portion of said body being formed as an open port defined by a continuous wall;
a catheter carrier, including:
a leading end portion adapted to couple with said proximal end portion, and a trailing end portion carrying a catheter introducer structure; and a directional barrier carried by said proximal end portion, constructed and arranged to effect a seal between said proximal end portion and said carrier, and to effect a seal against fluid flow through said open interior towards said proximal end portion;
said directional barrier carrying detection means constructed and arranged to signal the presence of the tip of a catheter structure when said tip is moved to the proximity of said valve structure from a location closer to said distal end portion;
said introducer structure being constructed and arranged to interface with said directional barrier when said leading end portion is coupled with said proximal end portion; and a catheter positioned through said introducer structure, said open interior and said distal end.
41. An assembly according to claim 40, wherein said introducer structure comprises:
an introducer tip constructed as a continuous wall to define:
an interior passageway configured to receive and pass a catheter; and an exterior surface configured to interface with said directional barrier.
an introducer tip constructed as a continuous wall to define:
an interior passageway configured to receive and pass a catheter; and an exterior surface configured to interface with said directional barrier.
42. An assembly according to claim 41, wherein said interior passageway includes an entry which is constructed and arranged to effect a sliding seal with the exterior surface of a catheter.
43. An assembly according to claim 41, wherein said exterior surface of said introducer tip and said directional barrier are mutually adapted to effect a sealed relationship when said leading end portion is coupled with said proximal end portion.
44. An assembly according to claim 43, wherein said directional barrier is structured to effect a resilient seal against an internal surface of said continuous wall of said proximal end portion and between said proximal end portion and said catheter carrier.
45. An assembly according to claim 41, wherein said manifold assembly includes a ventilation port in fluid flow communication with said open interior, said ventilation port having a central axis transverse the central axes of said proximal end portion and said distal end portion.
46. An assembly according to claim 41, wherein said manifold assembly includes a lavage port in fluid flow communication with said open interior, said lavage port having a central axis transverse said central axes of said proximal end portion and said distal end portion.
47. An assembly according to claim 41, wherein said directional barrier comprises a normally closed valve structure constructed and arranged to effect a sliding seal with the external surface of said introducer structure.
48. An assembly according to claim 40 wherein said catheter carries indicia, and said manifold body includes a transparent window portion positioned so that said indicia are viewable through said window portion as said catheter is moved parallel the axis of said manifold body.
49. An assembly according to claim 48, wherein said indicia comprise markings carried by the exterior surface of said catheter.
50. An assembly according to claim 48, wherein said manifold assembly includes a ventilation port in fluid flow communication with said open interior, said ventilation port having a central axis transverse the central axes of said proximal end portion and said distal end portion.
51. An assembly according to claim 48, wherein said manifold assembly includes a lavage port in fluid flow communication with said open interior, said lavage port having a central axis transverse said central axes of said proximal end portion and said distal end portion.
52. A ventilation circuit adapter assembly for use with an intubation device, comprising:
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, and a proximal end portion of said body being formed as an open port defined by a continuous wall;
a catheter carrier, including:
a leading end portion adapted to couple with said proximal end portion, and a trailing end portion carrying a catheter introducer structure, said introducer structure comprising:
an introducer tip constructed as a continuous wall to define:
an interior passageway configured to receive and pass a catheter; and an exterior surface configured to interface with said directional barrier;
a directional barrier carried by said proximal end portion, constructed and arranged to effect a seal between said proximal end portion and said carrier, and to effect a seal against fluid flaw through said open interior towards said proximal end portion, said directional barrier comprising a normally closed valve structure constructed and arranged to effect a sliding seal with the external surface of said introduces structure;
said introduces structure being constructed and arranged to interface with said directional barrier when said leading end portion is coupled with said proximal end portion; and a catheter positioned through said introduces structure, said open interior and said distal end;
and detection means earned by said valve structure, which is constructed and arranged to signal the presence of the tip of a catheter positioned within said valve structure when said tip is moved to the proximity of said valve structure from a location closer to said distal end portion and said catheter carries structure intercooperatable with said detection means.
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, and a proximal end portion of said body being formed as an open port defined by a continuous wall;
a catheter carrier, including:
a leading end portion adapted to couple with said proximal end portion, and a trailing end portion carrying a catheter introducer structure, said introducer structure comprising:
an introducer tip constructed as a continuous wall to define:
an interior passageway configured to receive and pass a catheter; and an exterior surface configured to interface with said directional barrier;
a directional barrier carried by said proximal end portion, constructed and arranged to effect a seal between said proximal end portion and said carrier, and to effect a seal against fluid flaw through said open interior towards said proximal end portion, said directional barrier comprising a normally closed valve structure constructed and arranged to effect a sliding seal with the external surface of said introduces structure;
said introduces structure being constructed and arranged to interface with said directional barrier when said leading end portion is coupled with said proximal end portion; and a catheter positioned through said introduces structure, said open interior and said distal end;
and detection means earned by said valve structure, which is constructed and arranged to signal the presence of the tip of a catheter positioned within said valve structure when said tip is moved to the proximity of said valve structure from a location closer to said distal end portion and said catheter carries structure intercooperatable with said detection means.
53. A ventilation circuit adapter assembly for use with an intubation device, comprising:
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, and a proximal end portion of said body being formed as an open port defined by a continuous wall;
a catheter carrier, including:
a leading end portion adapted to couple with said proximal end portion, and a trailing end portion carrying a catheter introduces structure, said introduces structure comprising:
an introducer tip constructed as a continuous wall to define:
an interior passageway configured to receive and pass a catheter; and an exterior surface configured to interface with said directional barrier;
a directional barrier carried by said proximal end portion, constructed and arranged to effect a seal between said proximal end portion and said carrier, and to effect a seal against fluid flow through said open interior towards said proximal end portion;
said introducer structure being constructed and arranged to interface with said directional barrier when said leading end portion is coupled with said proximal end portion; and a catheter positioned through said introducer structure, said open interior and said distal end;
and a fluid collector carried by said trailing end portion and including:
a chamber positioned in approximate axial alignment with said distal end portion opposite said manifold with respect to said leading end portion;
a proximal closing member for said chamber with an entry approximately axially aligned with said introducer tip, said closing member being structured to effect a sliding seal with the exterior surface of a catheter.
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, and a proximal end portion of said body being formed as an open port defined by a continuous wall;
a catheter carrier, including:
a leading end portion adapted to couple with said proximal end portion, and a trailing end portion carrying a catheter introduces structure, said introduces structure comprising:
an introducer tip constructed as a continuous wall to define:
an interior passageway configured to receive and pass a catheter; and an exterior surface configured to interface with said directional barrier;
a directional barrier carried by said proximal end portion, constructed and arranged to effect a seal between said proximal end portion and said carrier, and to effect a seal against fluid flow through said open interior towards said proximal end portion;
said introducer structure being constructed and arranged to interface with said directional barrier when said leading end portion is coupled with said proximal end portion; and a catheter positioned through said introducer structure, said open interior and said distal end;
and a fluid collector carried by said trailing end portion and including:
a chamber positioned in approximate axial alignment with said distal end portion opposite said manifold with respect to said leading end portion;
a proximal closing member for said chamber with an entry approximately axially aligned with said introducer tip, said closing member being structured to effect a sliding seal with the exterior surface of a catheter.
54. An assembly according to claim 53, wherein said chamber is structured as a hollow cylindrical extension from said trailing end portion, and said closing member is structured as an end panel of said extension with a central opening adapted to receive a catheter in friction-slipping engagement.
55. An assembly according to Claim 54, wherein said end panel comprises a removable cap structured and arranged to effect a sealed closure of said cylindrical extension.
56. A ventilation circuit adapter assembly for use with an intubation device, comprising:
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, and a proximal end portion of said body being formed as an open port defined by a continuous wall;
a catheter carrier, including:
a leading end portion adapted to couple with said proximal end portion, and a trailing end portion carrying a catheter introduces structure; and a directional barrier carried by said proximal end portion, constructed and arranged to effect a seal between said proximal end portion and said carrier, and to effect a seal against fluid flow through said open interior towards said proximal end portion;
said introduces structure being constructed and arranged to interface with said directional barrier when said leading end portion is coupled with said proximal end portion;
a catheter positioned through said introduces structure, said open interior and said distal end, said catheter carrying indicia, and said manifold body including a transparent window portion positioned so that said indicia is viewable through said window portion as said catheter is moved parallel the axis of said manifold body; and detection means carried by said valve structure and constructed and arranged to signal the presence of the tip of a catheter positioned within said valve structure when said tip is moved to the proximity of said valve structure from a location closer to said distal end portion and said catheter carries structure intercooperatable with said detection means.
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, and a proximal end portion of said body being formed as an open port defined by a continuous wall;
a catheter carrier, including:
a leading end portion adapted to couple with said proximal end portion, and a trailing end portion carrying a catheter introduces structure; and a directional barrier carried by said proximal end portion, constructed and arranged to effect a seal between said proximal end portion and said carrier, and to effect a seal against fluid flow through said open interior towards said proximal end portion;
said introduces structure being constructed and arranged to interface with said directional barrier when said leading end portion is coupled with said proximal end portion;
a catheter positioned through said introduces structure, said open interior and said distal end, said catheter carrying indicia, and said manifold body including a transparent window portion positioned so that said indicia is viewable through said window portion as said catheter is moved parallel the axis of said manifold body; and detection means carried by said valve structure and constructed and arranged to signal the presence of the tip of a catheter positioned within said valve structure when said tip is moved to the proximity of said valve structure from a location closer to said distal end portion and said catheter carries structure intercooperatable with said detection means.
57. A ventilation circuit adapter for interfacing a suction catheter with an intubation device, comprising:
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, a proximal end portion of said body being formed as an open port defined by a continuous wall, said proximal end portion being approximately axially aligned with said distal end portion so that a catheter may be inserted through said proximal end portion to exit from said distal end portion;
a catheter carrier structured and arranged to associate a catheter with said proximal end, including:
a leading end portion;
a trailing end portion; and a fluid collector carried by said trailing end portion, wherein said fluid collector comprises:
a chamber positioned in approximate axial alignment with said distal end portion opposite said manifold with respect to said leading end portion;
and a proximal closing member for said chamber with an entry approximately axially aligned with an introducer tip, said closing member being structured to effect a sliding seal with the exterior surface of a catheter.
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, a proximal end portion of said body being formed as an open port defined by a continuous wall, said proximal end portion being approximately axially aligned with said distal end portion so that a catheter may be inserted through said proximal end portion to exit from said distal end portion;
a catheter carrier structured and arranged to associate a catheter with said proximal end, including:
a leading end portion;
a trailing end portion; and a fluid collector carried by said trailing end portion, wherein said fluid collector comprises:
a chamber positioned in approximate axial alignment with said distal end portion opposite said manifold with respect to said leading end portion;
and a proximal closing member for said chamber with an entry approximately axially aligned with an introducer tip, said closing member being structured to effect a sliding seal with the exterior surface of a catheter.
58. A ventilation circuit adapter for interfacing a suction catheter with an incubation device, comprising:
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, a proximal end portion of said body being formed as an open port defined by a continuous wall, said proximal end portion being approximately axially aligned with said distal end portion so that a catheter may be inserted through said proximal end portion to exit from said distal end portion;
a catheter carrier structured and arranged to associate a catheter with said proximal end, including:
a leading end portion;
a trailing end portion; and a valve structure configured to be inserted in said proximal end portion in sealing relationship with said open interior, said valve structure normally being closed; and detection means carried by said valve structure, said detection means constructed and arranged to signal the presence of the tip of a catheter positioned within said valve structure when said tip is moved to the proximity of said valve structure from a location closer to said distal end portion.
a manifold assembly, having:
a body with an open interior;
a distal end portion of said body being adapted to couple with said intubation device, a proximal end portion of said body being formed as an open port defined by a continuous wall, said proximal end portion being approximately axially aligned with said distal end portion so that a catheter may be inserted through said proximal end portion to exit from said distal end portion;
a catheter carrier structured and arranged to associate a catheter with said proximal end, including:
a leading end portion;
a trailing end portion; and a valve structure configured to be inserted in said proximal end portion in sealing relationship with said open interior, said valve structure normally being closed; and detection means carried by said valve structure, said detection means constructed and arranged to signal the presence of the tip of a catheter positioned within said valve structure when said tip is moved to the proximity of said valve structure from a location closer to said distal end portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002199479A CA2199479C (en) | 1994-09-19 | 1994-09-19 | Apparatus and method for ventilating and aspirating |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US1994/010505 WO1996009082A1 (en) | 1994-09-19 | 1994-09-19 | Apparatus and method for ventilating and aspirating |
| CA002199479A CA2199479C (en) | 1994-09-19 | 1994-09-19 | Apparatus and method for ventilating and aspirating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2199479A1 CA2199479A1 (en) | 1996-03-28 |
| CA2199479C true CA2199479C (en) | 2003-04-01 |
Family
ID=4160128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002199479A Expired - Fee Related CA2199479C (en) | 1994-09-19 | 1994-09-19 | Apparatus and method for ventilating and aspirating |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2199479C (en) |
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1994
- 1994-09-19 CA CA002199479A patent/CA2199479C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2199479A1 (en) | 1996-03-28 |
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| MKLA | Lapsed |
Effective date: 20130919 |