WO2003028798A1 - Medizinisches gerät zum zu- oder abführen einer flüssigkeit zu oder von einem menschlichen oder tierischen körper oder zum aufnehmen einer solchen flüssigkeit - Google Patents
Medizinisches gerät zum zu- oder abführen einer flüssigkeit zu oder von einem menschlichen oder tierischen körper oder zum aufnehmen einer solchen flüssigkeit Download PDFInfo
- Publication number
- WO2003028798A1 WO2003028798A1 PCT/EP2002/010680 EP0210680W WO03028798A1 WO 2003028798 A1 WO2003028798 A1 WO 2003028798A1 EP 0210680 W EP0210680 W EP 0210680W WO 03028798 A1 WO03028798 A1 WO 03028798A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- elevations
- liquid
- medical device
- plastic
- structured
- Prior art date
Links
- 241001465754 Metazoa Species 0.000 title claims abstract description 7
- 239000012530 fluid Substances 0.000 title abstract 5
- 239000007788 liquid Substances 0.000 claims description 35
- 239000004033 plastic Substances 0.000 claims description 23
- 229920003023 plastic Polymers 0.000 claims description 23
- 239000011859 microparticle Substances 0.000 claims description 9
- 239000005871 repellent Substances 0.000 claims description 9
- 239000008280 blood Substances 0.000 claims description 5
- 210000004369 blood Anatomy 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 230000002209 hydrophobic effect Effects 0.000 claims description 5
- 239000006185 dispersion Substances 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004793 Polystyrene Substances 0.000 claims description 2
- 230000000844 anti-bacterial effect Effects 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 239000007900 aqueous suspension Substances 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 239000002966 varnish Substances 0.000 claims 2
- 238000005259 measurement Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 208000015181 infectious disease Diseases 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 102000009123 Fibrin Human genes 0.000 description 2
- 108010073385 Fibrin Proteins 0.000 description 2
- BWGVNKXGVNDBDI-UHFFFAOYSA-N Fibrin monomer Chemical compound CNC(=O)CNC(=O)CN BWGVNKXGVNDBDI-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229950003499 fibrin Drugs 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 239000008365 aqueous carrier Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000002444 silanisation Methods 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001225 therapeutic effect Effects 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
- 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
-
- 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
- A61M25/0043—Catheters; Hollow probes characterised by structural features
-
- 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
- A61M39/08—Tubes; Storage means specially adapted therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/1468—Containers characterised by specific material properties
Definitions
- Medical device for supplying or discharging a liquid to or from a human or animal body or to
- the invention relates to a medical device for supplying or discharging a liquid to or from a human or animal body or for taking up such a liquid.
- liquids are very often added or removed to the patient, for example blood, nutrient solutions and other dispersions or suspensions which are relevant for any therapeutic or other reason.
- catheters or tubing are used for this purpose, through which the liquid is guided.
- These lines are usually designed in the form of thin plastic hoses. When these lines are used, in particular over a long period of time, as is often the case after operations or the like, bacteria often settle in the line, which can lead to serious infections. Clogging or clogging of the lines with increasing time is also conceivable, for example due to agglomerated blood or the like.
- Another aspect is that the additives that are added can occasionally be washed out and in turn can lead to difficulties due to any incompatibility reactions or the like.
- the invention is therefore based on the problem of specifying a medical device in which the adhesion of microparticles, e.g. in the form of bacteria, of substances that create a favorable environment for bacteria and the like, is largely avoided, so that the risk of infection mentioned at the outset is largely eliminated, in particular when the instrument is used for a long time.
- the surface of the device facing the liquid is structured in a knob-like manner by means of elevations with dimensions in the ⁇ m range.
- the microstructured knob surface provided according to the invention particularly advantageously largely prevents the adhesion of microparticles such as bacteria or the like, so that the problems mentioned at the outset, in particular with regard to the risk of infection of the patient or the liquid removed itself, can be largely avoided.
- the invention uses the so-called "lotus effect", which was originally discovered in the field of botany.
- the surveys provided according to the invention which are only a few ⁇ m in size and closely adjacent, prevent microparticles from adhering.
- the rough surface has quasi self-cleaning properties, unlike smooth surfaces to which particles adhere relatively well.
- this self-cleaning property of a liquid line or a container or the like means a blatant improvement in terms of avoiding infections, but also in terms of patient comfort, since, for example, catheters can be used longer and an unpleasant exchange can often be avoided.
- the microstructuring already has the self-cleaning property due to the ⁇ m-sized elevations
- liquid-repellent material preferably appropriate polymers in the manufacture of the line
- hydrophobing e.g. by subsequent silanization of the plastic line, which should have a silanol group density of 1-10, preferably 2-6, in particular for this purpose.
- the elevations are expediently essentially lenticular, ie slightly convex.
- the height of the elevations should be between 5 and 50 ⁇ m, in particular 20 ⁇ m, and the width and diameter of the elevations should also be in these areas.
- the outside of the line is also structured in a knob-like manner by means of elevations with dimensions in the ⁇ m range. This is particularly advantageous in that any microparticles are prevented from adhering to the outside of the line, and simple cleaning is also possible on the outside.
- the elevations can be provided or generated directly on the surface of the inside and optionally also on the outside, ie the elevations are formed in the plastic material itself. Generation by microreplication is conceivable here, for example. As an alternative to this, it is also conceivable to apply a coating which forms the structured surface after curing to the inside and optionally the outside, a lacquer containing microparticles advantageously being used for this purpose.
- the material from which the device is made is expediently plastic.
- Polymers can be used as plastics in a wide range Depending on the application, the range of stiffness from soft-elastic to hard-tough can be used, such as silicones, polyurethanes, polyolefins, polyamides, polystyrenes, PVC and their copolymers.
- the device itself can be used as a hose-like line, e.g. as part of a catheter or as a catheter itself, as a short and possibly rigid line section, e.g. in the form of a line connector or coupling, or as a container, e.g. be designed as an infusion container or the like.
- the invention further relates to the use of a medical device of the type described above for supplying or removing a liquid to or from the human or animal body or for taking up such a liquid.
- a medical device of the type described above for supplying or removing a liquid to or from the human or animal body or for taking up such a liquid.
- Blood or an aqueous solution, suspension or dispersion can be supplied or removed or taken up as the liquid.
- the invention relates generally to a plastic for medical applications with an improved antibacterial effect when its surface comes into contact with a liquid required in the context of a medical application.
- This plastic is characterized by the fact that the surface that comes into contact with the liquid is structured in a knob-like manner by means of elevations with dimensions in the ⁇ m range. Appropriate further developments of the plastic according to the invention can be found in the dependent subclaims.
- FIG. 1 is a schematic diagram of a medical device according to the invention of a hose-like line in a sectional view
- Fig. 2 is a plan view of a processing of the line of Fig. 1 in section, and
- Fig. 3 is a partial view of a medical device according to the invention in the form of a container as a cutout.
- 1 shows an inventive medical device 1 of a first embodiment in the form of a liquid line 2.
- the liquid line 2 is tubular and made of plastic.
- nub-like elevations 4 are provided, which can be produced in any way. These nub-like elevations are provided in a regular or irregular arrangement over the entire length of the line. They are essentially lenticular, so they have a convex surface.
- Their height H should be approximately 20 ⁇ m, and the diameter D (see FIG. 2) should also be approximately 20 ⁇ m.
- the distance A between two elevations 4 should also be in the ⁇ m range; distances between 1 and 100 ⁇ m are conceivable.
- This nub-like structuring of the surface or the surface that comes into contact with the liquid has the effect that this surface has a self-cleaning property.
- This structuring prevents microparticles, e.g. Platelets or fibrin or the like or other particles contained in an aqueous carrier medium that are given in the context of a medical application.
- the convex upper side of the elevations 4 should be liquid-repellent, of course the entire surface, that is to say also the spaces between the elevations 4, can also be liquid-repellent.
- FIG. 3 shows in the form of a schematic diagram a section of a further device 5 according to the invention in the form of a container 6. Only the lower edge region is shown.
- elevations 7 are provided on the inside of the container facing the liquid, which elevations are designed in a manner corresponding to the elevations 4 with respect to the exemplary embodiment in FIGS. 1 and 2.
- the elevations are arranged either randomly or regularly in a certain pattern distributed over the inner surface of the container 6. Adhesion of microparticles that are contained in a liquid in the container 6 - whether it is originally contained therein or is collected there - is avoided, which is achieved by simply moving the liquid more often, as a result of which particles on the inner wall of the container due to the own liquid be washed off. The same naturally also applies to the liquid flowing through the line 2; here too, particles are washed off if a particle has actually become attached to the wall, for example if no liquid movement has taken place over a certain period of time.
- Any polymers can be used as plastics, depending on the rigidity of the respective application or the medical device produced. Any plastic objects are conceivable as medical devices, for example hose-like lines, containers or the like.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Pulmonology (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Materials For Medical Uses (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/490,769 US20050010169A1 (en) | 2001-09-26 | 2002-09-24 | Medical apparatus for administering or evacuating a fluid to or from a human or animal body or for receiving such a fluid |
EP02767496A EP1429836A1 (de) | 2001-09-26 | 2002-09-24 | Medizinisches gerät zum zu- oder abführen einer flüssigkeit zu oder von einem menschlichen oder tierischen körper oder zum aufnehmen einer solchen flüssigkeit |
JP2003600031U JP3110065U (ja) | 2001-09-26 | 2002-09-24 | 人間または動物の体へと液体を供給するための、もしくは人間または動物の体から液体を導出するための、もしくはこのような液体を収容するための医療機器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001147597 DE10147597B4 (de) | 2001-09-26 | 2001-09-26 | Medizinisches Gerät zum Zu- oder Abführen einer Flüssigkeit oder zum Aufnehmen einer solchen Flüssigkeit, Verwendung eines solchen Geräts, sowie Kunststoff für medizinische Anwendungen |
DE10147597.7 | 2001-09-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003028798A1 true WO2003028798A1 (de) | 2003-04-10 |
Family
ID=7700445
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/010680 WO2003028798A1 (de) | 2001-09-26 | 2002-09-24 | Medizinisches gerät zum zu- oder abführen einer flüssigkeit zu oder von einem menschlichen oder tierischen körper oder zum aufnehmen einer solchen flüssigkeit |
Country Status (5)
Country | Link |
---|---|
US (1) | US20050010169A1 (de) |
EP (1) | EP1429836A1 (de) |
JP (1) | JP3110065U (de) |
DE (1) | DE10147597B4 (de) |
WO (1) | WO2003028798A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3100758A1 (de) * | 2015-05-28 | 2016-12-07 | Philip Dye | Intermittierender harnkatheter |
US9878125B2 (en) | 2013-06-20 | 2018-01-30 | Zcath Llc | Intermittent urinary catheter |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2585841Y2 (ja) * | 1992-05-20 | 1998-11-25 | 旭光学工業株式会社 | 電子写真装置 |
GB0423422D0 (en) * | 2004-10-21 | 2004-11-24 | Bard Inc C R | Medical device for fluid flow, and method of forming such device |
DE102005032206A1 (de) * | 2004-12-21 | 2006-06-29 | Keese, Gerd, Dipl.Oek. | Beschichtung für Förderorgane, Förderorgan mit derartiger Beschichtung sowie Verfahren und Vorrichtung zur Beschichtung von Förderorganen |
US20100159195A1 (en) * | 2008-12-24 | 2010-06-24 | Quincy Iii Roger B | High repellency materials via nanotopography and post treatment |
JP2012035994A (ja) | 2010-08-10 | 2012-02-23 | Oki Data Corp | 媒体積載装置及び画像形成装置 |
EP2648797A4 (de) * | 2010-12-09 | 2016-08-24 | Oridion Medical 1987 Ltd | Knickfestes gaseinspeisungsrohr |
US20130253479A1 (en) * | 2012-03-23 | 2013-09-26 | Tsung-chow SU | Modified flow catheters and methods of use thereof |
US8556872B1 (en) * | 2012-11-12 | 2013-10-15 | James E. Hamman | Noise attenuating high-volume suction tip with automatic integral on demand vacuum release valve mechanism |
US9486603B2 (en) | 2013-06-20 | 2016-11-08 | Philip J. Dye | Intermittent urinary catheter |
US9289575B2 (en) | 2013-06-20 | 2016-03-22 | Philip J. Dye | Catheter |
MX2014004232A (es) * | 2014-04-08 | 2015-10-08 | Equipos Médicos Vizcarra S A | Sonda foley texturizada hidrofobica de baja adherencia microbiana. |
WO2017110757A1 (ja) * | 2015-12-21 | 2017-06-29 | テルモ株式会社 | バルーンカテーテル、および医療用長尺体 |
US20200238068A1 (en) * | 2017-10-04 | 2020-07-30 | Eli Lilly And Company | Tubing having visual markers for visualization of media therein |
US20210285191A1 (en) | 2019-12-16 | 2021-09-16 | Ilan Daniel Adir | Personal hydration system |
BE1029476B1 (nl) * | 2021-06-09 | 2023-01-16 | Ignore The Box | Steriliseerbare slang voor een bloedzakset of dergelijke en een afsluitmechanisme daarvoor, evenals een bloedzakset daarmee uitgerust |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0384476A1 (de) * | 1989-02-23 | 1990-08-29 | Lipac, Liebenzeller Verpackungsgesellschaft Mbh | Einmalkatheter zur Harnableitung |
WO1996004123A1 (de) * | 1994-07-29 | 1996-02-15 | Wilhelm Barthlott | Selbstreinigende oberflächen von gegenständen sowie verfahren zur herstellung derselben |
DE10004465A1 (de) * | 2000-02-02 | 2001-08-16 | Pari Gmbh | Inhalationsvernebler |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1100423A (en) * | 1964-02-24 | 1968-01-24 | American Can Co | Method and device for treating a smooth plastic sheet surface to reduce its coefficient of friction with respect to a smooth body surface |
DE3628197A1 (de) * | 1986-08-20 | 1988-02-25 | Streitenberg Hubert Dr Med | Behaelter fuer fluessige medikamente |
US4955862A (en) * | 1989-05-22 | 1990-09-11 | Target Therapeutics, Inc. | Catheter and catheter/guide wire device |
DE69232591T2 (de) * | 1991-01-23 | 2002-08-22 | Matsushita Electric Industrial Co., Ltd. | Wasser- und Ölabweisende adsorbierte Folie |
US5230864A (en) * | 1991-04-10 | 1993-07-27 | Eastman Kodak Company | Gravity assisted collection device |
DE4213545A1 (de) * | 1992-04-24 | 1993-10-28 | Bernward Oedekoven | Vorrichtung zur Einflußnahme auf den Gehalt von Radikalen insbesondere im Blut, auch in Form von blutführenden Beuteln, Schläuchen oder extrakorporalen Behandlungsgeräten |
US5505713A (en) * | 1994-04-01 | 1996-04-09 | Minimed Inc. | Indwelling catheter with stable enzyme coating |
US5996269A (en) * | 1994-04-25 | 1999-12-07 | Daiwa Seiko, Inc. | Fishing rod having a water dispersion surface to reduce drag on fishline |
JP3394327B2 (ja) * | 1994-07-11 | 2003-04-07 | テルモ株式会社 | チューブの内面処理方法 |
US5545151A (en) * | 1994-11-22 | 1996-08-13 | Schneider (Usa) Inc | Catheter having hydrophobic properties |
US5792116A (en) * | 1995-05-17 | 1998-08-11 | Scimed Life Systems, Inc. | Catheter having geometrically shaped surface and method of manufacture |
DE19900494A1 (de) * | 1999-01-08 | 2000-07-13 | Creavis Tech & Innovation Gmbh | Hydrophobierungsverfahren für polymere Substrate |
-
2001
- 2001-09-26 DE DE2001147597 patent/DE10147597B4/de not_active Expired - Fee Related
-
2002
- 2002-09-24 EP EP02767496A patent/EP1429836A1/de not_active Withdrawn
- 2002-09-24 WO PCT/EP2002/010680 patent/WO2003028798A1/de active Application Filing
- 2002-09-24 JP JP2003600031U patent/JP3110065U/ja not_active Expired - Lifetime
- 2002-09-24 US US10/490,769 patent/US20050010169A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0384476A1 (de) * | 1989-02-23 | 1990-08-29 | Lipac, Liebenzeller Verpackungsgesellschaft Mbh | Einmalkatheter zur Harnableitung |
WO1996004123A1 (de) * | 1994-07-29 | 1996-02-15 | Wilhelm Barthlott | Selbstreinigende oberflächen von gegenständen sowie verfahren zur herstellung derselben |
DE10004465A1 (de) * | 2000-02-02 | 2001-08-16 | Pari Gmbh | Inhalationsvernebler |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9878125B2 (en) | 2013-06-20 | 2018-01-30 | Zcath Llc | Intermittent urinary catheter |
EP3100758A1 (de) * | 2015-05-28 | 2016-12-07 | Philip Dye | Intermittierender harnkatheter |
Also Published As
Publication number | Publication date |
---|---|
US20050010169A1 (en) | 2005-01-13 |
DE10147597A1 (de) | 2003-04-17 |
DE10147597B4 (de) | 2004-07-15 |
EP1429836A1 (de) | 2004-06-23 |
JP3110065U (ja) | 2005-06-16 |
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