WO2012057602A1 - Système d'administration de liquide intraveineux - Google Patents
Système d'administration de liquide intraveineux Download PDFInfo
- Publication number
- WO2012057602A1 WO2012057602A1 PCT/MY2010/000231 MY2010000231W WO2012057602A1 WO 2012057602 A1 WO2012057602 A1 WO 2012057602A1 MY 2010000231 W MY2010000231 W MY 2010000231W WO 2012057602 A1 WO2012057602 A1 WO 2012057602A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chamber
- fluid
- buoyant body
- rod
- outlet channel
- Prior art date
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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/36—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
- A61M5/40—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body using low-level float-valve to cut off media flow from reservoir
-
- 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
- A61M39/22—Valves or arrangement of valves
- A61M39/28—Clamping means for squeezing flexible tubes, e.g. roller clamps
- A61M39/283—Screw clamps
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/1411—Drip chambers
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16877—Adjusting flow; Devices for setting a flow rate
- A61M5/16881—Regulating valves
Definitions
- Embodiments of the invention relate to an intravenous fluid delivery system and, in particular, to a drip chamber for preventing air bubbles from flowing into the delivery tube and a fluid flow controller for controlling the fluid flow rate.
- a typical intravenous fluid delivery process includes an infusion bag containing a medical solution or fluid that is delivered to a patient's body via a delivery tube.
- a drip chamber is attached between the infusion bag and the delivery tube, and allows medical staff to monitor the flow rate of the fluid.
- a flow controller device is secured to a section of the tube to regulate the flow rate of fluid delivered to the patient.
- conventional drip chambers are not provided with any mechanism to prevent air bubbles from flowing into the delivery tube.
- air bubbles tend to form in the delivery tube and flow into the patient's blood- stream, potentially causing detrimental health effects.
- medical staff constantly monitors the infusion bag and/or drip chamber to prevent air bubbles forming in the delivery tube when the infusion bag is near empty.
- Some intravenous fluid delivery processes employ electronic monitoring devices to monitor the flow rate and alert medical staff when the infusion bag is almost empty.
- it is difficult to deploy those devices in unfavorable circumstances such as during war time, natural disasters, or even power failure.
- it does not overcome other problems such as potential staff negligence or understaffed scenarios.
- those electronic devices are expensive and are subjected to electronic defects and failure any time without warning.
- a drip chamber comprising a chamber having an outlet channel.
- a buoyant body is movably disposed within the chamber.
- a member is attached to the buoyant body and having a flexible tapered end.
- the outlet channel is unblocked (may be referred to as a first position).
- the buoyant body is lowered towards the outlet channel so that a portion of the flexible tapered end blocks the outlet channel (may be referred to as a second position), which prevents fluid flow through the outlet channel and maintains the reduced fluid level in the chamber.
- a fluid flow controller comprising a housing having a groove to receive a fluid tube.
- a wheel is rotatable about a lateral axis of the housing and includes a threaded aperture.
- a threaded rod is engaged to the threaded aperture of the wheel and includes a head portion directed at the fluid tube in the groove. The complete rotation of the wheel actuates or moves the rod by a lateral distance equivalent to a thread pitch of the rod, which enables fine adjustments of the movement of the rod towards or away from the fluid tube.
- the wheel achieves a vernier tuning effect that allows the user to adjust the movement of the rod fractionally by rotating the wheel.
- FIG. 1 illustrates an intravenous fluid delivery system in accordance with one embodiment of the invention.
- Figure 2 illustrates a cross-sectional view of the drip chamber in accordance with one embodiment of the invention.
- Figure 3 illustrates a cross-sectional view of the drip chamber in accordance with another embodiment of the invention.
- Figures 4A - 4C illustrate a movement of the buoyant body in the chamber.
- Figure 5 illustrates a cross-sectional view of a flow controller in accordance with one embodiment of the invention.
- Figure 6 illustrates the cross-sectional view of the flow controller of Figure 5 along the axis B-B.
- FIG. 1 illustrates an intravenous fluid delivery system for delivering a fluid, such as a medical solution or blood, intravenously to a patient's body.
- the intravenous fluid delivery system comprises an infusion bag or bottle 10 containing the fluid 11 to be delivered to the patient.
- the infusion bag 10 is attached to a drip chamber 20 which is coupled to a fluid delivery tube 30.
- the drip chamber 20 enables medical staff to monitor the fluid flow rate, and also prevents air bubbles from entering the tube 30 and into the patient's blood stream when the infusion bag 10 is almost empty.
- the tube 30 delivers the fluid 11 to the patient via a catheter 31 inserted into the patient's body, for example a vein in the hand 40.
- a fluid flow controller 50 is attached to the tube 30 to adjust or stop the fluid flow.
- Figure 2 illustrate a cross-sectional view of the drip chamber 20.
- the drip chamber 20 comprises a chamber 200 having an inlet channel 211 at the top 210 of the chamber 200 and an outlet channel 221 at the bottom 220 of the chamber 200.
- the chamber 200 has a cylindrical shape.
- the chamber 200 is made from a sufficiently transparent material to allow medical staff to inspect the flow rate or level of fluid in the chamber 200.
- the chamber can be made from plastic materials commonly used for medical syringes.
- the chamber 200 can be manufactured by well-known injection molding processes.
- the top 210 of the chamber 200 is attachable to the infusion bag 10.
- the top 210 has a sharp end 214 to facilitate piercing of the top 211 into the infusion bag 10 so as to enable fluid flow into the inlet channel 211.
- the top 210 is fabricated as a separate element from the chamber 200 to allow a buoyant body 240 to be inserted into the chamber 200 before attaching the top 210 to the chamber 200.
- the outlet channel 221 is attachable to the tube 30 to allow fluid flow from the chamber 200 to the tube 30.
- a buoyant body 240 is disposed within the chamber 200.
- the body 240 has a cylindrical external surface.
- the buoyant body 240 can be made from a plastic material.
- the buoyant body. 240 comprises a member 250 which is attached to the body and has a flexible tapered end 251 directed at the outlet channel 221 of the chamber 200.
- the member 250 is secured to a tubular sleeve 242 extended from the bottom of the buoyant body 240.
- the member 250 and the body 240 are fabricated as a single element.
- the member 250 is made from a flexible material selected from the group consisting of silicone or rubber.
- the flexible nature of the tapered end 251 facilitates its movement into the outlet channel 221 to block the outlet channel 221 (see briefly Figure 4C).
- the tapered end 251 has a conical shape.
- the body 240 is designed with sufficient weight so that it suspends in the fluid within the chamber 200 (see briefly Figure 4B).
- the weight and size of the body 240 can be selected according to the different viscosity of fluid, such as blood and saline, so that the body 240 is operable to suspend in the fluid.
- the body 240 may have similar density as the fluid intended to be used.
- the body 240 includes an internal cavity 244 to provide sufficient buoyancy for the body 240.
- the body 240 comprises a plurality of fin elements 260 extended outwardly or radially from the external surface of the body 240.
- the plurality of fin elements 260 serve as guides to maintain the body 240 in a relatively central position within the chamber 200.
- the plurality of fin elements 260 minimize any lateral movement of the body 240 within the chamber 200.
- the fin elements 260 should be suitable dimensioned so that the widest diameter of the body 240, including the fin elements 260, is slightly smaller than an inner diameter of the chamber 200 to allow unimpeded vertical movement of the body 240 within the chamber 200.
- the tapered end 251 is substantially aligned to the outlet channel 221 of the chamber 200.
- the body 240 comprises eight fin elements, wherein four fin elements are positioned on the upper portion of the body 240 and another four fin elements are positioned at the lower portion of the body 240.
- the fin elements 260 are positioned around the external diameter of the body 240 in substantially equal distance from each other. It can be appreciated that the position and number of fin elements 260 can be adjusted according to the viscosity of the fluid of the sizes of the body 240 and chamber 200.
- the fin elements 260 have a thickness of around 0.5mm relative to the external surface of the body 240.
- the plurality of fin elements 260 are fabricated in the same molding process of the body 240.
- the drip chamber 20 includes a pump mechanism to expel air from the chamber 200 out of the inlet channel 211 and to draw fluid 11 from the infusion bag 10 into the chamber 200.
- the pump mechanism comprises a compressible body 270 attached to the sidewall of the chamber 200.
- the compressible body 270 includes an internal cavity 271 in fluid communication with an orifice/vent 2l8 extended through the sidewall of the chamber 200.
- the pump mechanism is positioned at the upper portion of the chamber 200 to prevent fluid from being drawn into its cavity 271.
- the compressible body 270 is made of an elastic material, such as but not limited to rubber.
- the buoyant body 240 comprises a weight element 248 as shown in Figure 3.
- the weight element 248 serves as an additional load to adjust the buoyancy of the body 240 relative / according to the viscosity of the fluid.
- the weight element is disposed at the bottom portion of the body 240 to lower the center of gravity of the body 240 and facilitate the movement of the body 240 in the chamber 200.
- the weight element 248 may be made from similar materials as the body 240 or other suitable materials.
- the body 240 is drawn towards the bottom 220 of the chamber 200 by gravitational pull so that the outlet channel 221 is blocked by the tapered end 251 as shown in Figure 4A.
- the compressible body 270 is depressed or squeezed, air is expelled out of its cavity 271 and flows to the infusion bag 10 via the inlet channel 211.
- the compressible body 270 expands back to its original form, it draws air from the chamber 200 into its cavity 271, which results in a decrease in pressure within the chamber 200.
- the reduction in pressure within the chamber 200 creates a suction effect that draws the fluid 11 from the infusion bag 10 into the chamber 200 (to replace the volume of air drawn into the compressible body 270).
- the compressible body 270 is depressed repeatedly until a desired amount of fluid 11 is drawn into the chamber 200 and the buoyant body 240 suspends in the fluid 11 as shown in Figure 4B.
- the buoyancy of the body 240 can be adjusted to allow around 70 percent of the buoyant body 240 length to be submerged in fluid 11 when the body 240 is fully suspended.
- a marking or label 202 is placed on the chamber 200 to indicate the desired level of fluid to be drawn into the chamber 200.
- the marking 202 is placed below the orifice 218 of the chamber 200 to prevent fluid from being drawn into the compressible body 270.
- the marking 202 is placed at around 70% level of the chamber height relative to the bottom 220.
- the infusion bag 10 When the infusion bag 10 is almost empty of fluid 11, the amount of fluid 11 within the chamber 200 decreases.
- the gradual decrease of the fluid 11 within the chamber 200 causes the body 240 to descend along with the decreasing fluid level. In other words, as the fluid decreases it lowers the suspended body 240, by gravitational pull, towards the bottom 220 of the chamber 200.
- the body 240 is lowered until a portion of the tapered end 251 is drawn into the outlet channel 221 as shown in Figure 4C, and stops fluid from flowing through the outlet channel 221.
- the tapered end 251 prevents any air bubbles from flowing into the tube 30 and subsequently entering the patient's blood stream.
- a threshold amount of fluid 11 is retained within the chamber 200 when the outlet channel 221 is blocked by the tapered end 251.
- the retained fluid within the chamber 200 helps to further prevent any air in the chamber 200 from entering the tube 30.
- the retained fluid level has a depth of around 15 mm.
- the tapered end 251 of the member 250 serves to temporarily block the outlet channel 221 when the fluid 11 in the chamber decreases to a certain level.
- the intravenous fluid delivery process can be repeated by replacing the infusion bag 10 with a new bag, and activating the pump mechanism 270 to draw fluid 11 from the new infusion bag 10 into the chamber 200.
- the amount of fluid within chamber 200 increases, which lifts the buoyant body 240 away from the bottom 220 of the chamber 200 so that the tapered end 251 is dislodged from the outlet channel 221 and therefore does not block the outlet channel 221 (see Figure 4B).
- the drip chamber 20 includes a buoyant body 240 having a member 250 which is attached to the body 240 and has a flexible tapered end 251 that blocks the outlet channel 221 of the chamber 200 when the fluid decreases to prevent air bubbles from entering the delivery tube 30.
- the movement of the buoyant body 240 depends solely on buoyancy and gravity effect and does not require any electricity-driven devices. Since the operation of the drip chamber 200 is not dependent on electricity supply, the drip chamber 200 can be deployed anywhere on earth.
- the position of the buoyant body 240 is controlled by the fluid in the drip chamber 20, the need to closely monitor the fluid level in the infusion bag 10 and drip chamber 20 is greatly reduced as compared to convention intravenous delivery systems. Accordingly, incidence of medical negligence is greatly reduced.
- the tapered end 251 would not easily dislodge therefrom by slight agitation.
- the tapered end 251 remains engaged in the outlet channel 221 even when the drip chamber is tilted to around an inclination angle of around 30 degrees.
- the drip chamber 20 can be tilted to around 30 degrees from the vertical plane without dislodging the tapered end 251 from the outlet channel 221.
- the chamber 200 when the chamber 200 is filled with fluid, the chamber 200 can be tilted to around 30 degrees from the vertical plane without the tapered end 251 accidentally blocking the outlet channel 221.
- the drip chamber according to embodiments of the invention may be deployed even in unstable circumstances such as war time, natural disasters.
- the drip chamber is easy to manufacture by using known injection molding techniques.
- Figure 5 illustrates a cross-sectional view of a fluid flow controller 50.
- the flow controller 50 comprises a housing 510 having a groove 512 to receive the delivery tube 30, wherein the groove 512 extends along a longitudinal axis A-A of the housing.
- both ends of the groove 512 are positioned substantially at the center of the flow controller 50, which helps to maintain the flow controller 50 in a substantially upright position when attached to the tube 30.
- the housing 510 may be made from a plastic material.
- the flow controller 50 includes a wheel 520 rotatable about a lateral axis B-B of the housing 510.
- the wheel 520 is supported by a socket 514 of the housing 510.
- the wheel 520 includes a rim 521 and an external flange 522, wherein a portion of the external flange 522 is exposed outside the housing 510.
- the wheel 520 includes a threaded aperture 524 that is substantially parallel to the lateral axis B-B. In one embodiment, the thread pitch of the aperture 524 is around 0.5 mm to 1 mm.
- a threaded rod 530 is frictionally engaged to the threaded aperture 524 of the wheel 520.
- the threaded rod 530 includes a head portion 531 directed at the tube 30 inserted in the groove 512.
- the head portion 531 includes an end surface 532, and at least one side surface 533/534 extended from the end surface 532 ( Figure 6).
- the end surface 532 of the rod 530 has a convex profile (Figure 5).
- a rotation of the wheel 520 actuates the rod 530 laterally towards or away from the fluid tube 30.
- the rotation of the wheel 520 causes the side surface 533/534 of the rod 530 to contact the groove sidewall 551/552.
- the groove sidewall 551/552 exerts a counteractive force on the side surface 533/534, which acts against the rotational force of wheel 520 acting on the rod 530 so that the wheel 520 pushes the rod 530 towards the fluid tube 30.
- Rotating the wheel 520 in the other direction draws the rod away from the fluid tube 30.
- a complete rotation of the wheel 520 actuates or moves the rod by a lateral distance equivalent to a thread pitch of the threaded rod 530.
- the thread pitch may be within a range of 0.5 mm to 1 mm.
- the end surface 532 contacts the tube 30 and exerts an increasing amount of pressure (i.e. a compression force) on the tube 30.
- the compression force exerted by the end surface 532 constricts the tube 30 and as a result decreases the fluid flow rate.
- Rotating the wheel 520 in the other direction moves the rod 530 away from the tube 30, which reduces the amount of pressure exerted on the tube 30 and thus increases fluid flow rate.
- the vernier effect tuning of the flow controller 50 provides ease of use and enables persons with low dexterity or inexperienced medical staff to operate the controller 50 and yet achieve accurate flow rate settings.
- the user rotates the wheel 520 by turning the external flange 522. Since the external flange 522 has a relatively larger diameter with respect to the threaded aperture 524 of the wheel 520, it enables a vernier tuning effect that allows the user to adjust the movement of the rod 530 fractionally by rotating the wheel 520.
- the external diameter of the external flange 522 is at least five times larger than the diameter of the aperture 524 or rod 530.
- the external flange 522 has a diameter of around 15 mm and the aperture 524 has a diameter of around 3 mm.
- the wheel only comprises the rim 521 without the flange 522, and a portion of the rim 521 of the wheel 520 is exposed outside the housing 510. In this case, the user rotates the wheel 520 by turning the rim 521.
- the rim 521 has a relatively larger diameter than the aperture 524 so as to provide a vernier tuning effect.
- the diameter of the rim 521 is at least five times larger than the diameter of the aperture 524 or rod 530.
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- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Vascular Medicine (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Pulmonology (AREA)
- Emergency Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
La présente invention concerne des modes de réalisation qui décrivent une chambre compte-gouttes et un régulateur de débit de fluide pour un système d'administration de liquide intraveineux. La chambre compte-gouttes comprend un corps flottant ayant un membre avec un extrémité effilée flexible qui bloque le canal de sortie de la chambre lorsque le fluide diminue à un certain niveau de manière à empêcher les bulles d'air d'entrer dans le tube de distribution. Le régulateur de débit de fluide comprend une roue engagée avec une tige. La rotation de la roue actionne la tige d'une distance latérale équivalente à un pas de vis de la tige de manière à permettre des ajustements fins du mouvement de tige pour contrôler le débit de fluide.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/MY2010/000231 WO2012057602A1 (fr) | 2010-10-29 | 2010-10-29 | Système d'administration de liquide intraveineux |
MYPI2013001231A MY164744A (en) | 2010-10-29 | 2010-10-29 | Intravenous fluid delivery system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/MY2010/000231 WO2012057602A1 (fr) | 2010-10-29 | 2010-10-29 | Système d'administration de liquide intraveineux |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012057602A1 true WO2012057602A1 (fr) | 2012-05-03 |
Family
ID=45994133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/MY2010/000231 WO2012057602A1 (fr) | 2010-10-29 | 2010-10-29 | Système d'administration de liquide intraveineux |
Country Status (2)
Country | Link |
---|---|
MY (1) | MY164744A (fr) |
WO (1) | WO2012057602A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014034882A1 (fr) | 2012-08-30 | 2014-03-06 | 帝人株式会社 | Réseau de microaiguilles revêtu d'une composition de médicament |
JP2017520321A (ja) * | 2014-06-30 | 2017-07-27 | ケアフュージョン 303、インコーポレイテッド | 受動的再始動yサイト |
WO2021063797A1 (fr) * | 2019-09-30 | 2021-04-08 | B. Braun Melsungen Ag | Ensemble chambre de goutte-à-goutte pour un système de perfusion médical |
WO2021165352A1 (fr) * | 2020-02-19 | 2021-08-26 | B. Braun Melsungen Ag | Insert de chambre de goutte-à-goutte pour un système de perfusion médical |
Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3167085A (en) * | 1962-02-12 | 1965-01-26 | Abbott Lab | Flow regulating device |
US3460526A (en) * | 1965-08-23 | 1969-08-12 | Horizon Ind Ltd | Apparatus for flow-control and pressure measurement |
US3963024A (en) * | 1975-04-08 | 1976-06-15 | Michael Goldowsky | Fluid flow regulator |
US3989043A (en) * | 1974-12-23 | 1976-11-02 | John Dimeff | Automatic flow control and automatic shut off for intravenous feeders |
WO1984001201A1 (fr) * | 1982-09-23 | 1984-03-29 | Whitman Med Corp | Vanne en ligne amelioree pour l'administration de liquides parenteraux |
EP0284315A2 (fr) * | 1987-03-25 | 1988-09-28 | Shun-Fa Hsu | Dispositif de fermeture automatique et d'alarme pour les injections goutte-à-goutte |
FR2644545A1 (fr) * | 1989-03-14 | 1990-09-21 | Cair | Dispositif de reglage du debit d'un fluide a l'interieur d'une conduite souple |
US4959053A (en) * | 1988-01-08 | 1990-09-25 | Jang Cheng Houng | Automatic stopping device for the intravenous drip |
WO2001089608A2 (fr) * | 2000-05-25 | 2001-11-29 | Makkinktech (Pty) Limited | Perfusion de liquides dans le corps d'un etre humain ou d'un animal |
US6695004B1 (en) * | 2002-12-16 | 2004-02-24 | Alaris Medical Systems, Inc. | Magnetic automatic stop valve |
DE10349761A1 (de) * | 2003-10-24 | 2005-06-09 | Fresenius Kabi Deutschland Gmbh | Vorrichtung zur Regulierung der Strömung in Schlauchleitungen, insbesondere für enterale Überleitsysteme, und enterales Überleitsystem mit einer derartigen Vorrichtung |
CN201279319Y (zh) * | 2008-10-24 | 2009-07-29 | 蒋蔚翊 | 输液流量控制器 |
US20100225494A1 (en) * | 2009-01-24 | 2010-09-09 | Thorpe Gregory L | Fluid Flow Outage Safety and Warning Device |
-
2010
- 2010-10-29 MY MYPI2013001231A patent/MY164744A/en unknown
- 2010-10-29 WO PCT/MY2010/000231 patent/WO2012057602A1/fr active Application Filing
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3167085A (en) * | 1962-02-12 | 1965-01-26 | Abbott Lab | Flow regulating device |
US3460526A (en) * | 1965-08-23 | 1969-08-12 | Horizon Ind Ltd | Apparatus for flow-control and pressure measurement |
US3989043A (en) * | 1974-12-23 | 1976-11-02 | John Dimeff | Automatic flow control and automatic shut off for intravenous feeders |
US3963024A (en) * | 1975-04-08 | 1976-06-15 | Michael Goldowsky | Fluid flow regulator |
WO1984001201A1 (fr) * | 1982-09-23 | 1984-03-29 | Whitman Med Corp | Vanne en ligne amelioree pour l'administration de liquides parenteraux |
EP0284315A2 (fr) * | 1987-03-25 | 1988-09-28 | Shun-Fa Hsu | Dispositif de fermeture automatique et d'alarme pour les injections goutte-à-goutte |
US4959053A (en) * | 1988-01-08 | 1990-09-25 | Jang Cheng Houng | Automatic stopping device for the intravenous drip |
FR2644545A1 (fr) * | 1989-03-14 | 1990-09-21 | Cair | Dispositif de reglage du debit d'un fluide a l'interieur d'une conduite souple |
WO2001089608A2 (fr) * | 2000-05-25 | 2001-11-29 | Makkinktech (Pty) Limited | Perfusion de liquides dans le corps d'un etre humain ou d'un animal |
US6695004B1 (en) * | 2002-12-16 | 2004-02-24 | Alaris Medical Systems, Inc. | Magnetic automatic stop valve |
DE10349761A1 (de) * | 2003-10-24 | 2005-06-09 | Fresenius Kabi Deutschland Gmbh | Vorrichtung zur Regulierung der Strömung in Schlauchleitungen, insbesondere für enterale Überleitsysteme, und enterales Überleitsystem mit einer derartigen Vorrichtung |
CN201279319Y (zh) * | 2008-10-24 | 2009-07-29 | 蒋蔚翊 | 输液流量控制器 |
US20100225494A1 (en) * | 2009-01-24 | 2010-09-09 | Thorpe Gregory L | Fluid Flow Outage Safety and Warning Device |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014034882A1 (fr) | 2012-08-30 | 2014-03-06 | 帝人株式会社 | Réseau de microaiguilles revêtu d'une composition de médicament |
JP2017520321A (ja) * | 2014-06-30 | 2017-07-27 | ケアフュージョン 303、インコーポレイテッド | 受動的再始動yサイト |
US10335544B2 (en) | 2014-06-30 | 2019-07-02 | Carefusion 303, Inc. | Passive restart Y-site |
US11383033B2 (en) | 2014-06-30 | 2022-07-12 | Carefusion 303, Inc. | Passive restart Y-site |
WO2021063797A1 (fr) * | 2019-09-30 | 2021-04-08 | B. Braun Melsungen Ag | Ensemble chambre de goutte-à-goutte pour un système de perfusion médical |
WO2021165352A1 (fr) * | 2020-02-19 | 2021-08-26 | B. Braun Melsungen Ag | Insert de chambre de goutte-à-goutte pour un système de perfusion médical |
CN115151286A (zh) * | 2020-02-19 | 2022-10-04 | B·布莱恩·梅尔松根股份公司 | 用于医疗输液系统的滴注室插件 |
Also Published As
Publication number | Publication date |
---|---|
MY164744A (en) | 2018-01-30 |
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