WO2010054668A1 - Catheters with a positive pressure and continuous flow - Google Patents
Catheters with a positive pressure and continuous flow Download PDFInfo
- Publication number
- WO2010054668A1 WO2010054668A1 PCT/EG2008/000043 EG2008000043W WO2010054668A1 WO 2010054668 A1 WO2010054668 A1 WO 2010054668A1 EG 2008000043 W EG2008000043 W EG 2008000043W WO 2010054668 A1 WO2010054668 A1 WO 2010054668A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- catheter
- reservoir
- positive pressure
- continuous flow
- dialysis
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
- A61M25/0028—Multi-lumen catheters with stationary elements characterized by features relating to at least one lumen located at the proximal part of the catheter, e.g. alterations in lumen shape or valves
-
- 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/3621—Extra-corporeal blood circuits
- A61M1/3653—Interfaces between patient blood circulation and extra-corporal blood circuit
- A61M1/3659—Cannulae pertaining to extracorporeal circulation
- A61M1/3661—Cannulae pertaining to extracorporeal circulation for haemodialysis
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
- A61M25/003—Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves
- A61M2025/0031—Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the distal part of the catheter, e.g. filters, plugs or valves characterized by lumina for withdrawing or delivering, i.e. used for extracorporeal circuit treatment
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/0021—Catheters; Hollow probes characterised by the form of the tubing
- A61M25/0023—Catheters; Hollow probes characterised by the form of the tubing by the form of the lumen, e.g. cross-section, variable diameter
- A61M25/0026—Multi-lumen catheters with stationary elements
- A61M25/0029—Multi-lumen catheters with stationary elements characterized by features relating to least one lumen located at the middle part of the catheter, e.g. slots, flaps, valves, cuffs, apertures, notches, grooves or rapid exchange ports
-
- 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
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
Definitions
- This invention relates to Dialysis Catheters with a device to maintain the catheter patency.
- This device consists of a reservoir . After dialysis this reservoir is filled with Saline , and / or flush solutions ( containing an anticoagulant or an antimicrobial) and / or Medication solutions. This solution inside the reservoir and the positive pressure created inside the device due to the elasticity of its body wall ( balloon like ) ( fig 1) , exerting a pressure on the patient 's circulating blood to prevent blood filling back into the catheter and at the same time creating a continuous flow between dialysis treatment to maintain the catheter patency.
- Intraluminal thrombosis represents the major complications associated with the dialysis access catheters. This thrombosis occurs when a thrombus forms within the catheter lumen. It results from either an inadequate volume of anticoagulant solution being placed within the catheter lumen , or anticoagulant solution being lost from the catheter between dialysis treatments or , from the presence of the blood within the catheter . It is against this background that the catheter with a positive pressure and continuous flow of present invention is developed.
- Catheter with a positive pressure and continuous flow has a reservoir .
- This reservoir after dialysis is filled with a saline solution and / or flush solution ( containing an anticoagulant or antimicrobial ) and / or Medication solution .
- the solution inside the reservoir and the positive pressure created due to the elasticity of reservoir body ( balloon like ) ( fig 1) are exerting a pressure on the patient's circulating blood to prevent blood filling back into the catheter (the same action like the existing lock solution , but with less cost and with the capability to infuse a medication to the patient between dialysis sessions .
- This positive pressure inside the catheter lumen and the continuous flow between dialysis session will maintain the catheter patency and this is safe a lot of money and time . Plus in case of use only saline solution , it will be easier to get FDA approval as no drug used compare to the existing lock solution.
- the device will work as follows ; Fig ( 1) after dialysis the nurse closes clamp 2 ( 6) and keep clamp 1 ( 2) opened , on extension line ( 3) , then connects a syringe with the required solution to the luer connection ( 1) , fills the reservoir ( 5) with the solution via the small hole ( 4) . After that the nurse closes clamp 1 ( 2) and open clamp 2 ( 6) . Then the nurse remove the syringe and cover the luer connection with its cap as normal. Now The solution is ready to flow into catheter lumen from the small hole ( 4) between the reservoir and the extension line.
Abstract
Dialysis catheter with a reservoir. After dialysis treatment this reservoir is filled with ( saline/or flush solution / or Medication ) to create a positive pressure and a continuous flow inside the catheter lumina between dialysis sessions to prevent blood flowing back into catheter lumina and thrombosis formation.
Description
CATHETERS WITH A POSTIVE PRESSURE AND CONTINUOUS FLOW
Technical field :
This invention relates to Dialysis Catheters with a device to maintain the catheter patency. This device consists of a reservoir . After dialysis this reservoir is filled with Saline , and / or flush solutions ( containing an anticoagulant or an antimicrobial) and / or Medication solutions. This solution inside the reservoir and the positive pressure created inside the device due to the elasticity of its body wall ( balloon like ) ( fig 1) , exerting a pressure on the patient 's circulating blood to prevent blood filling back into the catheter and at the same time creating a continuous flow between dialysis treatment to maintain the catheter patency.
Background Art;
Intraluminal thrombosis represents the major complications associated with the dialysis access catheters. This thrombosis occurs when a thrombus forms within the catheter lumen. It results from either an inadequate volume of anticoagulant solution being placed within the catheter lumen , or anticoagulant solution being lost from the catheter between dialysis treatments or , from the presence of the blood within the catheter . It is against this background that the catheter with a positive pressure and continuous flow of present invention is developed.
Disclosure of Invention :
Catheter with a positive pressure and continuous flow has a reservoir . This reservoir after dialysis is filled with a saline solution and / or flush solution ( containing an anticoagulant or antimicrobial ) and / or Medication solution . The solution inside the reservoir and the positive pressure created due to the elasticity of reservoir body ( balloon like ) ( fig 1) are exerting a pressure on the patient's circulating blood to prevent blood filling back into the catheter ( the same action like the existing lock solution , but with less cost and with the capability to infuse a medication to the patient between dialysis sessions . This positive pressure inside the catheter lumen and the
continuous flow between dialysis session will maintain the catheter patency and this is safe a lot of money and time . Plus in case of use only saline solution , it will be easier to get FDA approval as no drug used compare to the existing lock solution.
The device will work as follows ; Fig ( 1) after dialysis the nurse closes clamp 2 ( 6) and keep clamp 1 ( 2) opened , on extension line ( 3) , then connects a syringe with the required solution to the luer connection ( 1) , fills the reservoir ( 5) with the solution via the small hole ( 4) . After that the nurse closes clamp 1 ( 2) and open clamp 2 ( 6) . Then the nurse remove the syringe and cover the luer connection with its cap as normal. Now The solution is ready to flow into catheter lumen from the small hole ( 4) between the reservoir and the extension line.
Brief Description of Drawing :-
( Fig. 1 ) shows :
1- Luer connection.
2- Clamp 1.
3- Extension line.
A- Very small hole.
5- Reservoir.
6- Clamp 2.
7- Hub with fixation.
8- Cuff.
9- Catheter Body.
10- Arterial Tip.
11 - Venous Tip.
Claims
Claims
- Catheters with an elastic reservoir ( balloon like ). - Reservoir filled with saline and / or flash solution and/ or Medications
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EG2008/000043 WO2010054668A1 (en) | 2008-11-16 | 2008-11-16 | Catheters with a positive pressure and continuous flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EG2008/000043 WO2010054668A1 (en) | 2008-11-16 | 2008-11-16 | Catheters with a positive pressure and continuous flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010054668A1 true WO2010054668A1 (en) | 2010-05-20 |
Family
ID=42169656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EG2008/000043 WO2010054668A1 (en) | 2008-11-16 | 2008-11-16 | Catheters with a positive pressure and continuous flow |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2010054668A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITBO20130338A1 (en) * | 2013-06-28 | 2014-12-29 | Raffaele Longo | CATHETER |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4437856A (en) * | 1981-02-09 | 1984-03-20 | Alberto Valli | Peritoneal catheter device for dialysis |
| US5232444A (en) * | 1988-06-25 | 1993-08-03 | Just Hansjoerg | Dilatation catheter |
| US5807329A (en) * | 1996-05-07 | 1998-09-15 | Gelman; Martin L. | Displaceable catheter device |
| US6544223B1 (en) * | 2001-01-05 | 2003-04-08 | Advanced Cardiovascular Systems, Inc. | Balloon catheter for delivering therapeutic agents |
| US20040034329A1 (en) * | 2001-07-13 | 2004-02-19 | Mankus Rita A | Devices and methods for infusing a liquid into a catheter |
-
2008
- 2008-11-16 WO PCT/EG2008/000043 patent/WO2010054668A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4437856A (en) * | 1981-02-09 | 1984-03-20 | Alberto Valli | Peritoneal catheter device for dialysis |
| US5232444A (en) * | 1988-06-25 | 1993-08-03 | Just Hansjoerg | Dilatation catheter |
| US5807329A (en) * | 1996-05-07 | 1998-09-15 | Gelman; Martin L. | Displaceable catheter device |
| US6544223B1 (en) * | 2001-01-05 | 2003-04-08 | Advanced Cardiovascular Systems, Inc. | Balloon catheter for delivering therapeutic agents |
| US20040034329A1 (en) * | 2001-07-13 | 2004-02-19 | Mankus Rita A | Devices and methods for infusing a liquid into a catheter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITBO20130338A1 (en) * | 2013-06-28 | 2014-12-29 | Raffaele Longo | CATHETER |
| EP2818197A1 (en) * | 2013-06-28 | 2014-12-31 | Raffaele Longo | Catheter |
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