GB2394761A - Slit valve and suction catheter - Google Patents

Slit valve and suction catheter Download PDF

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Publication number
GB2394761A
GB2394761A GB0323530A GB0323530A GB2394761A GB 2394761 A GB2394761 A GB 2394761A GB 0323530 A GB0323530 A GB 0323530A GB 0323530 A GB0323530 A GB 0323530A GB 2394761 A GB2394761 A GB 2394761A
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GB
United Kingdom
Prior art keywords
valve
slit
deformable member
catheter
valve according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB0323530A
Other versions
GB2394761B (en
GB0323530D0 (en
Inventor
Stephen James Field
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Smiths Group PLC
Original Assignee
Smiths Group PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Smiths Group PLC filed Critical Smiths Group PLC
Publication of GB0323530D0 publication Critical patent/GB0323530D0/en
Publication of GB2394761A publication Critical patent/GB2394761A/en
Application granted granted Critical
Publication of GB2394761B publication Critical patent/GB2394761B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M39/0613—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof with means for adjusting the seal opening or pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
    • F16K15/1825—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism for check valves with flexible valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/445—Mechanical actuating means with exterior sleeve
    • 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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M2039/062—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof used with a catheter
    • 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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M2039/0633—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof the seal being a passive seal made of a resilient material with or without an opening

Abstract

A closed system suction catheter has a catheter 10 enclosed within a flexible envelope 24 secured between a patient end fitting 1 and a machine end fitting 20. The patient end fitting 1 has a cleaning chamber 4 with a valve 5 at its patient side and is normally closed so that the cleaning chamber is isolated from the patient. The valve 5 has an outer rigid housing 52 enclosing a one-piece elastomeric moulding 50 of tubular shape. The elastomeric moulding 50 has two pads 53 projecting externally through openings 55 in the outer housing 52. The elastomeric moulding 50 also has a web 56 extending internally across its diameter with a diametrically-extending slit 57 aligned with the pads. A collar 60 mounted on the housing 52 is slidable along the housing to engage the pads 53 so as to apply pressure across the web 56 and open the slit 57, thereby allowing the catheter 10 to be advanced to the patient.

Description

239476 1
VALVES
This invention relates to valves.
Closed system suction catheter assemblies are used for removing secretions from within the trachea or bronchi) of an intubated patient. The assembly comprises a flexible catheter connected at its machine end with a fitting including a valve that can be opened or closed to control the application of suction to the catheter. The valve is usually of a kind having a valve member movable laterally of a flow path between two positions where flow is either enabled or prevented.
Towards its patient end, the catheter extends through a forward, patient end fitting connected between the end of a tracheal tube and a ventilation circuit. The catheter can be advanced through the forward coupling down the tracheal tube to enable suctioning. A flexible envelope extends between the two couplings, enclosing the catheter so that it can be manipulated through the envelope. A wiper seal in the forward coupling prevents gas from the ventilation system inflating the envelope. Assemblies of this kind are sold by Portex, Inc under the trade mark Steri-Cath, by Ballard Medical, Inc/Kimberly-Clark under the trade mark Trach-Care and by Sorenson Critical Care, Inc. In some assemblies, provision is made for cleaning the catheter after its patient end has been withdrawn into the forward coupling. A manually-operable valve is located forwardly of the wiper seal providing a cleaning chamber between the valve and the wiper seal. An irrigation port opens into this chamber so that saline can be supplied to it, which is then drawn along the bore of the catheter by the applied suction to remove matter collected within the bore.
The valve used to close the washing chamber could be of various different kinds. US 5354267 and US 5882348 describe rotary stop-cock type valves, which are turned either to isolate the cleaning chamber from the patient end of the coupling or to enable the catheter to be advanced through the valve into the trachea. An alternative form of valve is described in US 5775325. This valve is of the duck-bill type within an integral, deformable outer tube.
The valve has a normally-closed slit and this is opened by squeezing the sides of the outer tube together parallel to the length of the slit. This valve has certain advantages because it can be made as an integral component. However, it also has a number of disadvantages. In particular, the valve has to be held open continuously manually while the catheter is advanced. This can be tiring in prolonged operation and means that the user has to occupy one hand maintaining the valve open. There is also a risk that the valve may not be held fully open during extension of the catheter. This could cause dragging on the catheter and may wipe secretions from the outside of the catheter in a position where they could move back into the airway. Furthermore, there is a risk that twisting or bending the assembly in the region of the cleaning chamber could inadvertently open the valve. US 6543451 describes a valve opened by advancing the catheter. This valve rubs along the outside of the catheter as it is withdrawn and may also dislodge secretions.
It is an object of the present invention to provide an alternative valve.
According to one aspect of the present invention there is provided a valve including a deformable member having a fluid passage extending therethrough, a normally-closed opening within the passage arranged such that it can be opened by external pressure applied
to the deformable member, the valve including external means displaceable on the deformable member between a first position in which the opening through the deformable member remains substantially closed and a second position in which the opening is opened.
The external means is preferably arranged to remain in the first or second position until manual force is applied to displace it to the other position. The external means may be a collar embracing the deformable member and it may be displaceable by sliding lengthwise of the passage. The first position may be located to one side of the opening and the second position may be substantially aligned with the opening. The valve preferably includes a rigid housing externally of the deformable member, a part of the deformable member projecting outwardly through an opening in the rigid housing for engagement by the external means.
The deformable member preferably has a part with an inclined surface arranged for engagement by the external means. The housing preferably has two openings located diametrically opposite one another, the deformable member having two parts in the form of pads projecting outwardly through respective ones of the openings, the pads each having an inclined external surface shaped for engagement by the external means such that displacement of the external means causes the pads to be pushed inwardly towards one another and the opening to be opened. The normally-closed opening may be a slit extending diametrically of the passage. The deformable member may be generally tubular, the slit being provided in a transverse web extending across the diameter of the deformable member and formed integrally with the deformable member. The valve may include a substantially rigid reinforcement member extending parallel to the slit on opposite sides such that when a force is applied externally along the slit the reinforcement member is bowed outwardly to open the slit.
According to another aspect of the present invention there is provided a valve including a deformable member having a fluid passage extending therethrough and an internal seal of a deformable material defining a slit extending transversely of the fluid passage, the seal including a substantially rigid reinforcement member extending parallel to the slit on opposite sides such that when a force is applied externally along the slit the reinforcement member is bowed outwardly to open the slit.
According to a further aspect of the present invention there is provided a closed system suction catheter assembly including a suction catheter and a valve according to the above one or other aspect of the present invention.
The assembly may include a cleaning chamber located towards the patient end of the assembly, the valve being located towards the patient side of the cleaning chamber and the valve being openable to allow extension of the suction catheter and being closable substantially to isolate the cleaning chamber from the patient and enable cleaning of the catheter. Alternatively, the valve may be located towards the machine end of the assembly and be connected at the machine end of the suction catheter so as to enable or prevent suctioning along the catheter.
A closed system suction catheter assembly according to the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
Figure I is a simplified, side elevation view of a closed system suction catheter assembly; Figure 2 is a sectional side elevation view of the patient end of the assembly with the washing chamber valve closed; Figure 3 is a sectional side elevation view of the patient end of the assembly with the washing chamber valve open; Figure 4 is a sectional side elevation view of a modified form of the valve; and Figure 5 is a transverse sectional view along the line V-V of Figure 4.
With reference first to Figure 1, the assembly comprises a patient end fitting I having a tapered female coupling 2 at one end adapted to fit with a male connector on the end of a tracheal tube (not shown). The fitting 1 has a side coupling 3 adapted for connection to a ventilation system. Joined with the rear end of the fitting 1 is a cleaning chamber 4 having a valve 5 at its forward end and a wiper seal 6 at its rear end. An irrigation port 7 opens into the cleaning chamber 4. The forward end of a suction catheter 10 extends slidably through the wiper seal 6 and is located rearwardly of the valve 5, when not in use. The rear end of the suction catheter 10 is fixed at a machine end fitting 20, which includes a suction control valve 21 and a spigot 22 connected to flexible tubing 23 extending to a suction source (not shown).
The valve 21 has a normally closed state, where no suction is applied to the catheter 10, but can be actuated manually to open it and apply suction from the tubing 23 to the catheter. A
flexible envelope 24 encloses the catheter 10 where it extends between the two fittings 1 and 20, the envelope being joined to the fittings at opposite ends.
With reference now also to Figures 2 and 3, the valve 5 includes a single, one-piece moulding 50 of a resilient elastomeric material having a tubular sleeve 51. The sleeve 51 extends coaxially within an outer rigid, tubular housing 52, which traps the forward end of the sleeve on the outside of the patient fitting 1. The housing 52 also traps the rear end of the sleeve 51 on the forward end of a tubular fitting 40 forming a part of the cleaning chamber 4.
Midway along its length, the moulding 50 has two pads 53 diametrically opposite one another on the outer surface, the pads being square in shape and having an inclined surface 54, which increases in height in the forward direction. The two pads 53 project outwardly through two openings 55 in the housing 52. Internally, the moulding 50 has an integral, transverse web 56 extending across the diameter of the sleeve 51. The web 56 has a slit 57 through it extending diametrically between the two pads 53 across a passage 58 through the sleeve 51. In its natural state, the slit 57 is closed (as shown in Figure 2), preventing substantial fluid flow along the passage 58. The slit 57, however, can be opened (as shown in Figure 3) by squeezing the sleeve 51 along the length of the slit, that is, by squeezing the two pads 53 together. The valve 5 is completed by a locking collar 60 of circular section mounted on the outside of the housing 52 to the rear, machine side of the web 56, the openings 55 and the pads 53. The collar 60 can be slid forwardly over the pads 53 to align with the web 56. In this position the inner surface of the collar 60 engages the inclined surfaces 54 on the pads 53, it pushes them inwardly and hence applies a force to squeeze the ends of the slit 57 together,
thereby opening it. The collar 60 can be left in this position to keep the slit 57 open, and hence keep the valve S open, as long as desired, without the need for continuous manual pressure. When the valve 5 needs to the closed, the user simply slides the collar 60 rearwardly to its original position so that the resilience of the moulding 50 closes the slit 57 again. It will be appreciated that there are various other forms of external means that could be used to maintain the valve open. For example the valve could have a rotatable collar with an inner cam surface that pushes the pads in when rotated. The collar could be arranged to cooperate with a bayonet type fitting, such as an L-shape slot on the outside of the housing, so that it can be locked securely in the open position by sliding forwards and then twisting.
The suction control valve 21 in the machine end fitting 20 could be of a conventional kind or it could be of the same kind as shown in Figures 2 and 3. The suction control valve 21 is operable to enable or prevent suctioning along the suction catheter 10.
The arrangement of the present invention ensures that the valve is maintained fully open during use and that the suction catheter can be pushed through the valve without the catheter being squeezed between edges of the slit and scraping off material from the outside of the catheter. It also avoids the need for the user to maintain a grip on the valve during use.
Because the resilient moulding is enclosed within a rigid outer housing and is accessible only through openings in the housing, there is no risk that the user could squeeze the valve too tightly and compress the valve onto the catheter. The rigid outer housing also prevents the valve being opened inadvertently by a twisting or bending action.
With reference now to Figures 4 and 5, there is shown an alternative forth of valve 105. This has a moulding 150 similar to that of the valve 5 but differs in that the web 156 includes two semi-rigid elongate strips 170 bonded with it and extending along opposite sides of the slit 157. The two strips 170 are joined at opposite ends by respective living hinges 171.
The nature of the strips 170 is such that, when the pads 153 are squeezed together along the length of the slit 157, the strips bow outwardly away from one another and hold the slit open.
This arrangement provides a more positive open or closed feel to the valve and ensures that, when the valve is open, the size of the opening is always sufficient to allow free, unimpeded movement of the catheter through the opening. This fonn of valve could be actuated directly between the finger and thumb of the user, or it could be opened by a collar or similar external member that would maintain the valve open without the need for manual pressure.

Claims (18)

1. A valve including a deformable member having a fluid passage extending therethrough, a normally-closed opening within the passage arranged such that it can be opened by external pressure applied to the deformable member, wherein the valve includes external means displaceable on the deformable member between a first position in which the opening through the deformable member remains substantially closed and a second position in which the opening is opened.
2. A valve according to Claim 1, wherein the external means is arranged to remain in the
first or second position until manual force is applied to displace it to the other position.
3. A valve according to Claim I or 2, wherein the external means is a collar embracing the deformable member.
4. A valve according to any one of the preceding claims, wherein the external means is displaceable by sliding lengthwise of the passage.
5. A valve according to any one of the preceding claims, wherein the first position is located to one side of the opening and the second position is substantially aligned with the opening.
6. A valve according to any one of the preceding claims including a rigid housing externally of the deformable member and wherein a part of the defonnablc member projects outwardly through an opening in the rigid housing for engagement by the external means.
7. A valve according to any one of the preceding claims, wherein the deformable member has a part with an inclined surface arranged for engagement by the external means.
8. A valve according to Claims 6 and 7, wherein the housing has two openings located diametrically opposite one another, wherein the deformable member has two parts in the fonm of pads projecting outwardly through respective ones of the openings, and wherein the pads each have an inclined external surface shaped for engagement by the external means such that displacement of the external means causes the pads to be pushed inwardly towards one another and the opening to be opened.
9. A valve according to any one of the preceding claims, wherein the normally-closed opening is a slit extending diametrically of the passage.
10. A valve according to Claim 9, wherein the deformable member is generally tubular, wherein the slit is provided in a transverse web extending across the diameter of the deformable member and formed integrally with the deformable member.
11. A valve according to Claim 9 or 10 including a substantially rigid reinforcement member extending parallel to the slit on opposite sides such that when a force is applied externally along the slit the reinforcement member is bowed outwardly to open the slit.
12. A valve including a deformable member having a fluid passage extending therethrough and an internal seal of a deformable material defining a slit extending transversely of the fluid passage, wherein the seal includes a substantially rigid reinforcement member extending parallel to the slit on opposite sides such that when a force is applied externally along the slit the reinforcement member is bowed outwardly to open the slit.
13. A valve substantially as hereinbefore described with reference to Figures 1 to 3 of the accompanying drawing.
14. A valve substantially as hereinbefore described with reference to Figures 4 and 5 of the accompanying drawings.
15. A closed system suction catheter assembly including a suction catheter and a valve according to any one of the preceding claims.
16. An assembly according to Claim 15 including a cleaning chamber located towards the patient end of the assembly, wherein the valve is located towards the patient side of the cleaning chamber, and wherein the valve is openable to allow extension of the
suction catheter and is closable substantially to isolate the cleaning chamber from the patient and enable cleaning of the catheter.
17. An assembly according to Claim 15, wherein the valve is located towards the machine end of the assembly and is connected at the machine end of the suction catheter so as to enable or prevent suctioning along the catheter.
18. A closed system suction catheter substantially as hereinbefore described with reference to Figures 1 to 3 of the accompanying drawings.
l9. A closed system suction catheter substantially as hereinbefore described with reference to Figures 1 to 3 as modified by Figures 4 and 5 of the accompanying drawings 20. Any novel and inventive feature or combination of features as hereinbeforc described.
GB0323530A 2002-10-29 2003-10-08 Valves Expired - Fee Related GB2394761B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0225075.1A GB0225075D0 (en) 2002-10-29 2002-10-29 Valves

Publications (3)

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GB0323530D0 GB0323530D0 (en) 2003-11-12
GB2394761A true GB2394761A (en) 2004-05-05
GB2394761B GB2394761B (en) 2006-04-19

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GB0323530A Expired - Fee Related GB2394761B (en) 2002-10-29 2003-10-08 Valves

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US (1) US7726315B2 (en)
EP (1) EP1415678B1 (en)
JP (1) JP2004148112A (en)
AT (1) ATE330655T1 (en)
AU (1) AU2003257919B2 (en)
CA (1) CA2446807A1 (en)
DE (1) DE60306299T2 (en)
ES (1) ES2261883T3 (en)
GB (2) GB0225075D0 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2468946A (en) * 2009-03-26 2010-09-29 Smiths Medical Int Ltd Closed system suction catheter assembly
WO2011020985A1 (en) 2009-08-20 2011-02-24 Smiths Medical International Limited Ventilation and suction systems and assemblies
US8177772B2 (en) 2005-09-26 2012-05-15 C. R. Bard, Inc. Catheter connection systems
US8337475B2 (en) 2004-10-12 2012-12-25 C. R. Bard, Inc. Corporeal drainage system
US8636721B2 (en) 2003-11-20 2014-01-28 Henry M. Jackson Foundation For The Advancement Of Military Medicine, Inc. Portable hand pump for evacuation of fluids
WO2019077292A1 (en) 2017-10-20 2019-04-25 Smiths Medical International Limited Suction catheter assemblies
WO2020178540A1 (en) 2019-03-02 2020-09-10 Smiths Medical International Limited Suction catheter assemblies and assemblies including a suction catheter assembly
WO2021079079A1 (en) 2019-10-22 2021-04-29 Smiths Medical International Limited Connectors and assemblies
WO2021224585A1 (en) 2020-05-04 2021-11-11 Smiths Medical International Limited Closed-system suction catheter assemblies and methods
WO2022023687A1 (en) 2020-07-28 2022-02-03 Smiths Medical International Limited Closed-system suction catheter assemblies
US11344318B2 (en) 2016-07-18 2022-05-31 Merit Medical Systems, Inc. Inflatable radial artery compression device
WO2022238668A1 (en) 2021-05-10 2022-11-17 Smiths Medical International Limited Suction catheter assemblies

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6602286B1 (en) * 2000-10-26 2003-08-05 Ernst Peter Strecker Implantable valve system
US6752828B2 (en) 2002-04-03 2004-06-22 Scimed Life Systems, Inc. Artificial valve
US7007698B2 (en) * 2002-04-03 2006-03-07 Boston Scientific Corporation Body lumen closure
US6945957B2 (en) * 2002-12-30 2005-09-20 Scimed Life Systems, Inc. Valve treatment catheter and methods
US8128681B2 (en) 2003-12-19 2012-03-06 Boston Scientific Scimed, Inc. Venous valve apparatus, system, and method
US7854761B2 (en) * 2003-12-19 2010-12-21 Boston Scientific Scimed, Inc. Methods for venous valve replacement with a catheter
US8083728B2 (en) 2004-03-18 2011-12-27 C. R. Bard, Inc. Multifunction adaptor for an open-ended catheter
US7854731B2 (en) 2004-03-18 2010-12-21 C. R. Bard, Inc. Valved catheter
US7594911B2 (en) 2004-03-18 2009-09-29 C. R. Bard, Inc. Connector system for a proximally trimmable catheter
US7594910B2 (en) 2004-03-18 2009-09-29 C. R. Bard, Inc. Catheter connector
US7377915B2 (en) * 2004-04-01 2008-05-27 C. R. Bard, Inc. Catheter connector system
US7566343B2 (en) 2004-09-02 2009-07-28 Boston Scientific Scimed, Inc. Cardiac valve, system, and method
US20060173490A1 (en) 2005-02-01 2006-08-03 Boston Scientific Scimed, Inc. Filter system and method
US7854755B2 (en) 2005-02-01 2010-12-21 Boston Scientific Scimed, Inc. Vascular catheter, system, and method
US7878966B2 (en) * 2005-02-04 2011-02-01 Boston Scientific Scimed, Inc. Ventricular assist and support device
US7670368B2 (en) 2005-02-07 2010-03-02 Boston Scientific Scimed, Inc. Venous valve apparatus, system, and method
US7780722B2 (en) 2005-02-07 2010-08-24 Boston Scientific Scimed, Inc. Venous valve apparatus, system, and method
US7867274B2 (en) 2005-02-23 2011-01-11 Boston Scientific Scimed, Inc. Valve apparatus, system and method
US7722666B2 (en) 2005-04-15 2010-05-25 Boston Scientific Scimed, Inc. Valve apparatus, system and method
US8012198B2 (en) 2005-06-10 2011-09-06 Boston Scientific Scimed, Inc. Venous valve, system, and method
US7875019B2 (en) 2005-06-20 2011-01-25 C. R. Bard, Inc. Connection system for multi-lumen catheter
US7569071B2 (en) 2005-09-21 2009-08-04 Boston Scientific Scimed, Inc. Venous valve, system, and method with sinus pocket
US7799038B2 (en) 2006-01-20 2010-09-21 Boston Scientific Scimed, Inc. Translumenal apparatus, system, and method
US8834407B2 (en) * 2006-01-20 2014-09-16 Medline Industries, Inc. Covered yankauer suction device and methods of using same
US7625207B2 (en) * 2006-12-15 2009-12-01 Kimberly-Clark Worldwide, Inc. Yankauer suction device with sleeve and wiper
US8133270B2 (en) 2007-01-08 2012-03-13 California Institute Of Technology In-situ formation of a valve
JP5313928B2 (en) 2007-02-05 2013-10-09 ボストン サイエンティフィック リミテッド Percutaneous valves and systems
US8828079B2 (en) 2007-07-26 2014-09-09 Boston Scientific Scimed, Inc. Circulatory valve, system and method
US8465515B2 (en) * 2007-08-29 2013-06-18 Ethicon Endo-Surgery, Inc. Tissue retractors
US8517931B2 (en) * 2007-11-26 2013-08-27 Ethicon Endo-Surgery, Inc. Tissue retractors
US8128559B2 (en) 2007-11-26 2012-03-06 Ethicon Endo-Surgery, Inc. Tissue retractors
US7892276B2 (en) 2007-12-21 2011-02-22 Boston Scientific Scimed, Inc. Valve with delayed leaflet deployment
US9101748B2 (en) * 2008-05-08 2015-08-11 Becton, Dickinson And Company Push-button blood control
US7938805B2 (en) 2008-05-19 2011-05-10 Becton, Dickinson And Company Radially compressible blood control valve
US8337484B2 (en) 2009-06-26 2012-12-25 C. R. Band, Inc. Proximally trimmable catheter including pre-attached bifurcation and related methods
US20120085958A1 (en) * 2010-10-08 2012-04-12 Teng-Jen Yang Plastic formed inflation mouth structure
GB201119794D0 (en) 2011-11-16 2011-12-28 Airway Medix Spolka Z O O Ballooned ventilation tube cleaning device
JP2014527412A (en) 2011-03-29 2014-10-16 エアウェイ メディックス スポルカ ゼット．オ．オ．Ａｉｒｗａｙ Ｍｅｄｉｘ Ｓｐｏｌｋａ Ｚ．Ｏ．Ｏ． Balloon type ventilation tube cleaning device
US9668859B2 (en) 2011-08-05 2017-06-06 California Institute Of Technology Percutaneous heart valve delivery systems
CN102500028B (en) * 2011-10-18 2014-04-02 张海山 One-lung ventilation integrated device of single-cavity trachea catheter and bronchus blocking device
WO2014144247A1 (en) 2013-03-15 2014-09-18 Arash Kheradvar Handle mechanism and functionality for repositioning and retrieval of transcatheter heart valves
US10500360B1 (en) 2014-08-29 2019-12-10 Teleflex Life Sciences Unlimited Company Catheter for cleaning of tracheal ventilation tubes
US10272227B2 (en) 2014-11-07 2019-04-30 C. R. Bard, Inc. Connection system for tunneled catheters
US20160310690A1 (en) * 2015-04-24 2016-10-27 Veranos, Inc. Coupler for safe delivery of anesthesia gases
US10525175B2 (en) * 2015-08-28 2020-01-07 Epic Medical Concepts & Innovations, Inc. System for clearing surgical chest drainage tube blockages
GB2546082B (en) 2016-01-06 2018-05-16 Airway Medix S A Closed suction system
US11452831B2 (en) 2016-01-06 2022-09-27 Airway Medix S.A. Closed suction system
US10946153B2 (en) 2016-05-16 2021-03-16 Teleflex Life Sciences Pte. Ltd. Mechanical user control elements for fluid input module
US10758719B2 (en) 2016-12-15 2020-09-01 Surmodics, Inc. Low-friction sealing devices
WO2019040801A1 (en) 2017-08-23 2019-02-28 C.R. Bard, Inc. Catheter assemblies and methods thereof
CN116036443A (en) * 2019-01-21 2023-05-02 W.L.戈尔及同仁股份有限公司 System and method for endoluminal device handling
US11560953B2 (en) * 2020-06-30 2023-01-24 Illinois Tool Works Inc. Anti-free-flow valve

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996021476A1 (en) * 1995-01-11 1996-07-18 Maersk Medical A/S Valve for catheter and catheter system comprising such a valve
US5775325A (en) * 1995-05-11 1998-07-07 Russo; Ronald D. Two part closed tracheal suction system
US20030037820A1 (en) * 2001-06-13 2003-02-27 Williamson Mark E. Vacuum demand valve

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE414272B (en) 1978-10-17 1980-07-21 Viggo Ab CANNEL OR CATETER DEVICE
US4850350A (en) * 1986-06-23 1989-07-25 Sheridan Catheter Corp. Closed system combined suction and ventilation devices
US4960412A (en) * 1988-04-15 1990-10-02 Universal Medical Instrument Corp. Catheter introducing system
US5255676A (en) * 1991-11-08 1993-10-26 Russo Ronald D Safety sealed tracheal suction system
US5269771A (en) * 1993-02-24 1993-12-14 Thomas Medical Products, Inc. Needleless introducer with hemostatic valve
US5396925A (en) * 1993-12-16 1995-03-14 Abbott Laboratories Anti-free flow valve, enabling fluid flow as a function of pressure and selectively opened to enable free flow
US5716347A (en) 1994-02-28 1998-02-10 Wilson-Cook Medical Inc. Gastrostomy feeding ports with positively sealing entrance valves
US5598840A (en) * 1995-03-17 1997-02-04 Sorenson Critical Care, Inc. Apparatus and method for ventilation and aspiration
JP2001170187A (en) * 1999-12-17 2001-06-26 Terumo Corp Connector
US6923184B1 (en) * 2001-02-05 2005-08-02 Ronald D. Russo Suction system with high efficiency suction control valve
US7044441B2 (en) * 2001-08-10 2006-05-16 Cardinal Health 303, Inc. Valved male luer connector having sequential valve timing
US6766824B2 (en) * 2001-12-20 2004-07-27 Koninklijke Philips Electronics N.V. Fluid control valve and a feedback control system therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996021476A1 (en) * 1995-01-11 1996-07-18 Maersk Medical A/S Valve for catheter and catheter system comprising such a valve
US5775325A (en) * 1995-05-11 1998-07-07 Russo; Ronald D. Two part closed tracheal suction system
US20030037820A1 (en) * 2001-06-13 2003-02-27 Williamson Mark E. Vacuum demand valve

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8636721B2 (en) 2003-11-20 2014-01-28 Henry M. Jackson Foundation For The Advancement Of Military Medicine, Inc. Portable hand pump for evacuation of fluids
US10213532B2 (en) 2003-11-20 2019-02-26 The Henry M. Jackson Foundation For The Advancement Of Military Medicine, Inc. Portable hand pump for evacuation of fluids
US9907887B2 (en) 2003-11-20 2018-03-06 The Henry M. Jackson Foundation For The Advancement Of Military Medicine, Inc. Portable hand pump for evacuation of fluids
US9393353B2 (en) 2003-11-20 2016-07-19 The Henry M. Jackson Foundation For The Advancement Of Military Medicine, Inc. Portable hand pump for evacuation of fluids
US8337475B2 (en) 2004-10-12 2012-12-25 C. R. Bard, Inc. Corporeal drainage system
US9295764B2 (en) 2004-10-12 2016-03-29 C. R. Bard, Inc. Corporeal drainage system
US9913935B2 (en) 2004-10-12 2018-03-13 C. R. Bard, Inc. Corporeal drainage system
US8235971B2 (en) 2005-09-26 2012-08-07 C. R. Bard, Inc. Catheter connection systems
US8177772B2 (en) 2005-09-26 2012-05-15 C. R. Bard, Inc. Catheter connection systems
GB2468946B (en) * 2009-03-26 2013-06-12 Smiths Medical Int Ltd Suction catheter assemblies
GB2468946A (en) * 2009-03-26 2010-09-29 Smiths Medical Int Ltd Closed system suction catheter assembly
WO2011020985A1 (en) 2009-08-20 2011-02-24 Smiths Medical International Limited Ventilation and suction systems and assemblies
US11344318B2 (en) 2016-07-18 2022-05-31 Merit Medical Systems, Inc. Inflatable radial artery compression device
WO2019077292A1 (en) 2017-10-20 2019-04-25 Smiths Medical International Limited Suction catheter assemblies
WO2020178540A1 (en) 2019-03-02 2020-09-10 Smiths Medical International Limited Suction catheter assemblies and assemblies including a suction catheter assembly
WO2021079079A1 (en) 2019-10-22 2021-04-29 Smiths Medical International Limited Connectors and assemblies
WO2021224585A1 (en) 2020-05-04 2021-11-11 Smiths Medical International Limited Closed-system suction catheter assemblies and methods
WO2022023687A1 (en) 2020-07-28 2022-02-03 Smiths Medical International Limited Closed-system suction catheter assemblies
WO2022238668A1 (en) 2021-05-10 2022-11-17 Smiths Medical International Limited Suction catheter assemblies

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AU2003257919B2 (en) 2008-10-09
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AU2003257919A1 (en) 2004-05-20
DE60306299D1 (en) 2006-08-03
ATE330655T1 (en) 2006-07-15
US20040082923A1 (en) 2004-04-29
US7726315B2 (en) 2010-06-01
EP1415678A1 (en) 2004-05-06
GB0225075D0 (en) 2002-12-04
EP1415678B1 (en) 2006-06-21
JP2004148112A (en) 2004-05-27
GB2394761B (en) 2006-04-19
DE60306299T2 (en) 2006-11-02
GB0323530D0 (en) 2003-11-12

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