WO1998005371A1 - Closed-circuit bronchoaspiration device applicable to a ventilation circuit - Google Patents
Closed-circuit bronchoaspiration device applicable to a ventilation circuit Download PDFInfo
- Publication number
- WO1998005371A1 WO1998005371A1 PCT/US1997/013029 US9713029W WO9805371A1 WO 1998005371 A1 WO1998005371 A1 WO 1998005371A1 US 9713029 W US9713029 W US 9713029W WO 9805371 A1 WO9805371 A1 WO 9805371A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit
- tube
- bronchoaspiration
- closed
- interspace
- Prior art date
Links
- 238000009423 ventilation Methods 0.000 title claims description 14
- 238000001914 filtration Methods 0.000 claims description 16
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 238000011109 contamination Methods 0.000 abstract description 2
- 239000003570 air Substances 0.000 description 9
- 241000894006 Bacteria Species 0.000 description 2
- 208000034309 Bacterial disease carrier Diseases 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/04—Tracheal tubes
- A61M16/0463—Tracheal tubes combined with suction tubes, catheters or the like; Outside connections
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/105—Filters
- A61M16/1055—Filters bacterial
Definitions
- the present invention relates to a closed-circuit bronchoaspiration device applicable to a ventilation circuit.
- Conventional closed-circuit bronchoaspiration systems are based on the use of a patient-insertable tube which is connected to the coupling that can be connected to the ventilation circuit and to the tracheal tube.
- the insertable tube is protected inside a tubular element made of polyethylene or polyurethane, which covers said tube and is supported between said coupling and the valve for cutting off the connection of the insertable tube to the suction.
- the inside of the tubular element is therefore in practice a substantially closed space, which must however be connected to the outside since, when the insertable tube is inserted in the tracheal tube to perform bronchoaspiration, the air contained in the tubular element, which is in practice folded up in an accordion-like configuration, must be discharged so that it is possible to compress said tubular element in an accordion-like fashion.
- a principal aim of the invention is to eliminate the drawbacks described above, by providing a closed-circuit bronchoaspiration device in which it is possible to fully avoid contamination of the air contained in the interspace between the insertable tube and the tubular element.
- a particular object of the invention is to provide a bronchoaspiration device in which absolute safety from a hygienic point of view can be achieved with extremely simple means.
- Another object of the present invention is to provide a bronchoaspiration device which, by virtue of its particular •constructive characteristics, is capable of giving the greatest assurances of reliability and safety in use.
- Another object of the present invention is to provide a closed-circuit bronchoaspiration device which can be easily obtained starting from commonly commercially available elements and materials and is furthermore competitive from a merely economical point of view.
- a closed-circuit bronchoaspiration device which can be applied to a ventilation circuit, according to the invention, which comprises a coupling which can be associated with a ventilation circuit and supports, through scraper means, a tube which can be inserted in the tracheal tube that can be coupled to said coupling, said insertable tube being arranged inside a tubular element which is connected between said coupling and a suction cutoff valve associated with said insertable tube, characterized in that it comprises filtering means which control the external connection opening of the interspace formed between said insertable tube and said tubular element.
- figure 1 is a schematic view of the bronchoaspiration device in the extended configuration
- figure 2 is a partially sectional view of the device during the insertion of the insertable tube
- figure 3 is a view of a first embodiment of the filtering means
- figure 4 is a view of the filtering means of figure 3, connected to the cutoff valve
- figure 5 is a partially exploded schematic perspective view of a different embodiment of the filtering means
- figure 6 is a sectional view of the filtering means of figure 5.
- the closed-circuit bronchoaspiration device applicable to a ventilation circuit comprises a coupling 2 which can be connected to a ventilation circuit and to an endotracheal tube generally designated by the reference numeral 3.
- An insertable tube 10 is connected to the coupling 2 through the interposition of scraper means constituted by a scraper gasket 4; said insertable tube can be inserted in the endotracheal tube and is connected, at its other end, to a suction cutoff valve, which is generally designated by the reference numeral 11 and is capable of connecting the inside of the insertable tube to a suction pump when bronchoaspiration must be performed.
- a tubular element 20 of the flexible type is provided between the coupling 2 and the cutoff valve 11 and in practice internally accommodates the insertable tube 10, forming an interspace 21 therewith.
- the particularity of the invention is constituted by the fact that filtering means are provided which control the opening that connects the interspace 21 to the outside.
- Said filtering means are provided by means of a cylindrical filter body 30 which has a circular filter 31 and is inserted by pressing on a branch-off duct 32 which is formed in the cutoff valve and is connected to the interspace 21.
- filtering means which are formed directly in the cutoff valve or in the coupling for connection to the valve and have a substantially crescent-shaped filter, designated by the reference numeral 40, which can be inserted by means of a tab 41 which can be arranged radially and also controls the duct for connection to the interspace, which is again designated by the reference numeral 32.
- the tubular element which is generally made of polyethylene or polyurethane and in any case so that it is particularly flexible, the air escapes out through the duct 32 without any problem.
- the air can reenter the interspace 21 by passing through a filtering surface, so that it is not possible to contaminate the environment inside the interspace with bacteria from outside.
- the materials employed may be any according to requirements .
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Emergency Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
- Catching Or Destruction (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
This invention is a closed circuit bronchoaspiration device (1) having an interspace (21) formed between an insertable tube (10), and a flexible element (20) which is protected from contamination during expanding and contracting.
Description
CLOSED-CIRCUIT BRONCHOASPIRATION DEVICE APPLICABLE TO A VENTILATION CIRCUIT
The present invention relates to a closed-circuit bronchoaspiration device applicable to a ventilation circuit.
Conventional closed-circuit bronchoaspiration systems are based on the use of a patient-insertable tube which is connected to the coupling that can be connected to the ventilation circuit and to the tracheal tube. The insertable tube is protected inside a tubular element made of polyethylene or polyurethane, which covers said tube and is supported between said coupling and the valve for cutting off the connection of the insertable tube to the suction.
The inside of the tubular element is therefore in practice a substantially closed space, which must however be connected to the outside since, when the insertable tube is inserted in the tracheal tube to perform bronchoaspiration, the air contained in the tubular element, which is in practice folded up in an accordion-like configuration, must be discharged so that it is possible to compress said tubular element in an accordion-like fashion.
Likewise, when the insertable tube is removed from the tracheal tube to extend the tubular element again, it is necessary to draw air from outside.
Since it is not possible to draw air from the ventilation circuit, since the ventilation pressure could burst the tubular element, a scraper gasket is provided on the point where the insertable tube is inserted in the coupling.
Accordingly, in order to evacuate and subsequently
aspirate the air that is present inside the tubular element, it is necessary to provide holes or slots which connect to the outside environment the interspace formed between the insertable tube and the tubular element.
It is evident that this solution entails the permanent exposure of the insertable bronchoaspiration tube to ambient air, which may be contaminated.
In view of the moist state of the insertable tube after bronchoaspiration, it is easily imaginable that exposure to contaminated ambient air can cause bacterial colonization of the insertable tube by microorganisms which are foreign to the patient; in the subsequent bronchoaspiration, these bacteria are conveyed with the insertable tube directly into the air passages of the patient, with a true serious risk of infection for the patient.
A principal aim of the invention is to eliminate the drawbacks described above, by providing a closed-circuit bronchoaspiration device in which it is possible to fully avoid contamination of the air contained in the interspace between the insertable tube and the tubular element.
Within the scope of this aim, a particular object of the invention is to provide a bronchoaspiration device in which absolute safety from a hygienic point of view can be achieved with extremely simple means.
Another object of the present invention is to provide a bronchoaspiration device which, by virtue of its particular •constructive characteristics, is capable of giving the greatest assurances of reliability and safety in use.
Another object of the present invention is to provide a closed-circuit bronchoaspiration device which can be easily
obtained starting from commonly commercially available elements and materials and is furthermore competitive from a merely economical point of view.
This aim, these objects and others which will become apparent hereinafter are achieved by a closed-circuit bronchoaspiration device which can be applied to a ventilation circuit, according to the invention, which comprises a coupling which can be associated with a ventilation circuit and supports, through scraper means, a tube which can be inserted in the tracheal tube that can be coupled to said coupling, said insertable tube being arranged inside a tubular element which is connected between said coupling and a suction cutoff valve associated with said insertable tube, characterized in that it comprises filtering means which control the external connection opening of the interspace formed between said insertable tube and said tubular element.
Further characteristics and advantages of the present invention will become apparent from the following detailed description of a preferred but not exclusive embodiment of a closed-circuit bronchoaspiration device applicable to a ventilation circuit, illustrated only by way of non- limitative example in the accompanying drawings, wherein: figure 1 is a schematic view of the bronchoaspiration device in the extended configuration; figure 2 is a partially sectional view of the device during the insertion of the insertable tube; figure 3 is a view of a first embodiment of the filtering means; figure 4 is a view of the filtering means of figure 3,
connected to the cutoff valve; figure 5 is a partially exploded schematic perspective view of a different embodiment of the filtering means; figure 6 is a sectional view of the filtering means of figure 5.
With reference to the above figures, the closed-circuit bronchoaspiration device applicable to a ventilation circuit, according to the invention, generally designated by the reference numeral 1, comprises a coupling 2 which can be connected to a ventilation circuit and to an endotracheal tube generally designated by the reference numeral 3.
An insertable tube 10 is connected to the coupling 2 through the interposition of scraper means constituted by a scraper gasket 4; said insertable tube can be inserted in the endotracheal tube and is connected, at its other end, to a suction cutoff valve, which is generally designated by the reference numeral 11 and is capable of connecting the inside of the insertable tube to a suction pump when bronchoaspiration must be performed.
A tubular element 20 of the flexible type is provided between the coupling 2 and the cutoff valve 11 and in practice internally accommodates the insertable tube 10, forming an interspace 21 therewith.
The particularity of the invention is constituted by the fact that filtering means are provided which control the opening that connects the interspace 21 to the outside.
Said filtering means, as shown in figures 1 to 4, are provided by means of a cylindrical filter body 30 which has a circular filter 31 and is inserted by pressing on a branch-off duct 32 which is formed in the cutoff valve and
is connected to the interspace 21.
Likewise, as shown in figures 5 and 6, it is possible to provide filtering means which are formed directly in the cutoff valve or in the coupling for connection to the valve and have a substantially crescent-shaped filter, designated by the reference numeral 40, which can be inserted by means of a tab 41 which can be arranged radially and also controls the duct for connection to the interspace, which is again designated by the reference numeral 32.
With the described arrangement, therefore, when the insertable tube is inserted in the tracheal tube, arranging in an accordion-like fashion the tubular element, which is generally made of polyethylene or polyurethane and in any case so that it is particularly flexible, the air escapes out through the duct 32 without any problem.
When the insertable tube is retracted from the endotracheal tube, the air can reenter the interspace 21 by passing through a filtering surface, so that it is not possible to contaminate the environment inside the interspace with bacteria from outside.
This fact, as mentioned earlier, is particularly important, since by virtue of extremely simple solutions it allows to absolutely avoid bacterial colonization in the moist environment produced in the interspace after using the insertable tube.
The fact is particularly important that these considerable advantages are provided by a very simple means, such as the filtering element, which provides for a true separation between the internal environment of the patient and the outside yet allows the air exchanges which
inevitably occur between the inside and the outside.
The invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the inventive concept.
All the details may also be replaced with other technically equivalent elements.
In practice, the materials employed, so long as they are compatible with the specific use, as well as the contingent shapes and dimensions, may be any according to requirements .
Claims
1. A closed-circuit bronchoaspiration device applicable to a ventilation circuit, comprising a coupling which can be associated with a ventilation circuit and supports, through scraper means, a tube which can be inserted in the tracheal tube that can be coupled to said coupling, said insertable tube being arranged inside a tubular element which is connected between said coupling and a suction cutoff valve associated with said insertable tube, characterized in that it comprises filtering means which control the external connection opening of the interspace formed between said insertable tube and said tubular element.
2. A bronchoaspiration device according to claim 1, wherein said filtering means are detachably associated with said opening.
3. A bronchoaspiration device according to one or more of the preceding claims, characterized in that said filtering means are constituted by a cylindrical filter with a circular filtering surface which can be applied by pressing at the lumen of a duct which is connected to said interspace.
4. A bronchoaspiration device according to one or more of the preceding claims, characterized in that said filtering means are constituted by a filtering surface which is provided in a tab formed by the inlet of said valve means, said tab forming a region which is connected to the duct that leads into said interspace.
5. A closed-circuit bronchoaspiration device applicable to a ventilation circuit, characterized in that it comprises one or more of the described and/or illustrated characteristics.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97934294A EP0862476A4 (en) | 1996-08-01 | 1997-07-24 | Closed-circuit bronchoaspiration device applicable to a ventilation circuit |
| JP10507978A JPH11512963A (en) | 1996-08-01 | 1997-07-24 | Closed circuit type bronchial suction device applicable to ventilation circuit |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITMI96A001667 | 1996-08-01 | ||
| IT96MI001667A IT1283664B1 (en) | 1996-08-01 | 1996-08-01 | CLOSED SUCTION DEVICE APPLICABLE TO A VENTILATION CIRCUIT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998005371A1 true WO1998005371A1 (en) | 1998-02-12 |
Family
ID=11374745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1997/013029 WO1998005371A1 (en) | 1996-08-01 | 1997-07-24 | Closed-circuit bronchoaspiration device applicable to a ventilation circuit |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0862476A4 (en) |
| JP (1) | JPH11512963A (en) |
| CA (1) | CA2233719A1 (en) |
| IT (1) | IT1283664B1 (en) |
| WO (1) | WO1998005371A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000015284A1 (en) * | 1998-09-17 | 2000-03-23 | Ballard Medical Products | Respiratory suction catheter apparatus |
| WO2001024862A1 (en) * | 1999-10-05 | 2001-04-12 | Ballard Medical Products | Retaining plug for endotracheal catheter and manifold assembly and method of use |
| EP1113828A1 (en) * | 1998-09-17 | 2001-07-11 | Ballard Medical Products | Respiratory suction catheter apparatus |
| WO2002055143A3 (en) * | 2000-10-31 | 2003-04-24 | Kimberly Clark Co | Suction catheter assembly |
| EP1773425A2 (en) * | 2004-07-07 | 2007-04-18 | Egret Medical Products, Inc. | Suction catheter assembly |
| KR20200018395A (en) * | 2018-08-09 | 2020-02-19 | 센트럴 사우스 유니버시티 | Oropharyngeal Prayer Keeper |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4850350A (en) * | 1986-06-23 | 1989-07-25 | Sheridan Catheter Corp. | Closed system combined suction and ventilation devices |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2939794A1 (en) * | 1979-10-01 | 1981-04-16 | Volker O. Prof. Dr.Med. 8012 Ottobrunn Lang | Bronchial secretion trap for medical respirator - has breathing head under plate carrying trap with suction connection and air venting |
| GB2207736B (en) * | 1987-08-06 | 1991-07-17 | Concord Lab Inc | Control valve for suction catheter device and ventilation/aspiration system |
| US4805611A (en) * | 1988-02-10 | 1989-02-21 | Becton, Dickinson And Company | Aspirating device |
-
1996
- 1996-08-01 IT IT96MI001667A patent/IT1283664B1/en active IP Right Grant
-
1997
- 1997-07-24 JP JP10507978A patent/JPH11512963A/en active Pending
- 1997-07-24 CA CA002233719A patent/CA2233719A1/en not_active Abandoned
- 1997-07-24 WO PCT/US1997/013029 patent/WO1998005371A1/en not_active Application Discontinuation
- 1997-07-24 EP EP97934294A patent/EP0862476A4/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4850350A (en) * | 1986-06-23 | 1989-07-25 | Sheridan Catheter Corp. | Closed system combined suction and ventilation devices |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1113828A1 (en) * | 1998-09-17 | 2001-07-11 | Ballard Medical Products | Respiratory suction catheter apparatus |
| WO2000015284A1 (en) * | 1998-09-17 | 2000-03-23 | Ballard Medical Products | Respiratory suction catheter apparatus |
| EP1113828A4 (en) * | 1998-09-17 | 2009-08-12 | Kimberly Clark Co | Respiratory suction catheter apparatus |
| WO2001024862A1 (en) * | 1999-10-05 | 2001-04-12 | Ballard Medical Products | Retaining plug for endotracheal catheter and manifold assembly and method of use |
| US6584970B1 (en) | 1999-10-05 | 2003-07-01 | Ballard Medical Products | Retaining plug for endotracheal catheter and manifold assembly and method of use |
| EP2272557A3 (en) * | 2000-10-31 | 2014-07-23 | Kimberly-Clark Worldwide, Inc. | Suction catheter assembly |
| WO2002055143A3 (en) * | 2000-10-31 | 2003-04-24 | Kimberly Clark Co | Suction catheter assembly |
| US6609520B1 (en) | 2000-10-31 | 2003-08-26 | Kimberly-Clark Worldwide, Inc. | Closed suction catheter adaptor and assembly containing the same |
| KR100799028B1 (en) * | 2000-10-31 | 2008-01-28 | 킴벌리-클라크 월드와이드, 인크. | Improved closed suction catheter assembly adaptor and system containing the same |
| EP1773425A2 (en) * | 2004-07-07 | 2007-04-18 | Egret Medical Products, Inc. | Suction catheter assembly |
| EP1773425A4 (en) * | 2004-07-07 | 2012-01-04 | Egret Medical Products Inc | Suction catheter assembly |
| KR20200018395A (en) * | 2018-08-09 | 2020-02-19 | 센트럴 사우스 유니버시티 | Oropharyngeal Prayer Keeper |
| KR102340969B1 (en) | 2018-08-09 | 2021-12-17 | 센트럴 사우스 유니버시티 | oropharyngeal airway maintainer |
Also Published As
| Publication number | Publication date |
|---|---|
| ITMI961667A1 (en) | 1998-02-01 |
| CA2233719A1 (en) | 1998-02-12 |
| EP0862476A4 (en) | 2000-08-02 |
| EP0862476A1 (en) | 1998-09-09 |
| ITMI961667A0 (en) | 1996-08-01 |
| IT1283664B1 (en) | 1998-04-23 |
| JPH11512963A (en) | 1999-11-09 |
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