WO1985000526A1 - Draining tube - Google Patents

Draining tube Download PDF

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Publication number
WO1985000526A1
WO1985000526A1 PCT/EP1984/000220 EP8400220W WO8500526A1 WO 1985000526 A1 WO1985000526 A1 WO 1985000526A1 EP 8400220 W EP8400220 W EP 8400220W WO 8500526 A1 WO8500526 A1 WO 8500526A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
drainage
hose
perforation holes
depressions
Prior art date
Application number
PCT/EP1984/000220
Other languages
German (de)
French (fr)
Inventor
Klaus-Peter Nagorski
Original Assignee
Sterimed Gesellschaft Für Medizinischen Bedarf Mbh
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
Priority claimed from DE19833325920 external-priority patent/DE3325920C2/en
Application filed by Sterimed Gesellschaft Für Medizinischen Bedarf Mbh filed Critical Sterimed Gesellschaft Für Medizinischen Bedarf Mbh
Publication of WO1985000526A1 publication Critical patent/WO1985000526A1/en

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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
    • A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
    • 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
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0068—Static characteristics of the catheter tip, e.g. shape, atraumatic tip, curved tip or tip structure
    • A61M25/007—Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked

Definitions

  • the invention relates to a drainage tube for draining secretions from body and wound cavities.
  • DE-A-29 08952 describes a drainage hose in which the perforations lie in a helical groove.
  • FR-A-23 9575 it is proposed to cover the drainage hose with a flexible hose structure with a mesh-like structure.
  • DE-A-3034835 discloses a drainage hose which is formed from a support element covered with a hose-like screen covering.
  • the object of the invention is to design a drainage tube for draining secretions from body and wound cavities in such a way that the tendency to clog is further reduced and the ductility is improved.
  • the drainage hose consists of a base hose, the perforation holes of which are arranged in groove-like depressions on the outside, which is covered at least in its perforated part with a tight-fitting thin-walled cover hose, which in the Area of the perforated part of the base tube has sieve-like perforation holes.
  • the depressions covered by the thin-walled cover tube form a secretion flow bed which is separated from the surrounding body tissue.
  • the elasticity of the outer wall of the secretion bed formed by the thin-walled cover tube prevents the surrounding body tissue from being sucked up.
  • the drainage hose according to the invention can be pulled by using very low tensile forces with a significantly reduced risk of trauma.
  • a further advantage is that any clot that may have been attached to the secretion flow bed cannot be stripped off when the drainage tube is pulled, and can therefore be removed when the drain is pulled.
  • the pressure balance over the entire perforation section of the drainage hose is promoted by the secretion flow bed.
  • the basic hose of the drainage hose according to the invention is produced in a manner known per se.
  • the perforation holes are punched into the cut-out groove-like depressions in a known manner.
  • Preferred is the usual arrangement of the holes as cross perforation holes, i.e. the perforation holes are each
  • the basic hose is expediently produced from soft PVC, for example by extrusion from a correspondingly shaped nozzle. It has the usual length of a herkömm ⁇ union drainage tube, for example about 50 cm.
  • the diameter of the drainage hose moves in the frame usual for drainage hoses, for example career 9 to 21.
  • a preferred embodiment has a diameter of approximately career 12 (4 mm).
  • the diameter of the perforation holes and their mutual spacing can be varied within wide limits and correspond to the values customary for drainage hoses.
  • the groove-like depressions are preferably designed so that their cross section has no edges if possible.
  • perforation holes are only made in the part of the basic tube that is in use in the body or wound cavity, ie the intracorporeal part of the basic tube that has a length between about 5 cm and 20 cm can have.
  • the channel-like depressions can be limited to the intracorporeal part of the basic tube or preferably also extend into the part of the drainage tube that is outside of the body during use.
  • the thin-walled covering tube which is fitted tightly to the base tube, is made from the materials customary for thin-walled tube structures. It is advantageous to use materials with favorable biocompatibility, such as polyurethane (PUR) or polyvinylidene fluoride.
  • PUR polyurethane
  • a further advantage of the subject matter of the invention can be seen from this: with a very low use of the relatively expensive biocompatible material for the thin-walled covering tube, an excellent tissue-compatible drainage tube is obtained, because, as already mentioned above, the basic tube, which has no direct contact with the body tissue, is obtained the less compatible, less expensive, soft PVC can be produced.
  • Particularly advantageous is the application of the coating tube as ⁇ shrink tubing.
  • the thin-walled cover tube is expanded depending on the material in a ratio of approximately 1: 2 to 1: 4, preferably 1: 3, and then, for example, by means of a needle roller all the way to a length that corresponds to the perforation length of the basic hose, provided with a hole size of 0.5 to 1.5 mm, preferably 1 mm.
  • the heat shrinking shrinks back to its original size due to heat supplied from outside. This ensures a tight fit on the inner basic hose. A further fastening between the basic hose and the upper pull hose is not necessary.
  • Fig. 1 shows a large section of a longitudinal section through a drainage hose according to the invention.
  • FIG. 2 shows a perspective, partially broken, greatly enlarged cross-sectional view of the perforated part of a drainage hose according to the invention.
  • OMPI From Fig. 1 it can be seen how the basic hose 1 is provided in its longitudinal direction with groove-like depressions 2.
  • the perforation holes 3 are arranged in the groove-like depressions 2, in pairs, each offset by an angle of 90 °.
  • the basic hose 1 is tightly enclosed by an upper pull hose 4.

Abstract

Draining tube consisting of a base tube (1) whose perforations (3) are located in outside groove-like depressions (2), covered at least on its perforated part with a thin-walled tight fitting covering tube (4) having sieve-like perforations (5) in the area of the perforations of the base tube (1). It is characterized by its low tendency to clog and its atraumatic extraction capability.

Description

Drainageschlauch Drainage hose
Technisches GebietTechnical field
Die Erfindung bezieht sich auf einen Drainageschlauch zum Ableiten von Sekreten aus Körper- und Wundhöhlen.The invention relates to a drainage tube for draining secretions from body and wound cavities.
Stand der TechnikState of the art
Zum Ableiten von Wundsekreten und Körperflüssigkeiten werden in der Chirurgie Drainageschläuche gelegt, an die Unterdruck angeschlossen wird (Redon-Technik). Es besteht hierbei die Gefahr, daß Körpergewebe in die Perforationsl cher des Drainageschlauchs eingesaugt wird und damit die Ableitung be- oder verhindert wird. Weiterhin geschieht es häufig, daß im Laufe des Wundheilungsprozesses Körpergewebe in die Perforationslöcher einwächst. Abgesehen davon, daß dann das Entfernen des Drainageschlauchs für den Patienten sehr schmerzhaft ist, bilden sich beim Ziehen des Drainageschlauches im Wundgebiet neue Traumen.To drain wound secretions and body fluids, drainage tubes are placed in the surgery, to which negative pressure is connected (Redon technique). There is a risk here that body tissue is sucked into the perforation holes of the drainage hose and thus the discharge is prevented or prevented. Furthermore, it often happens that body tissue grows into the perforation holes in the course of the wound healing process. Apart from the fact that the removal of the drainage tube is then very painful for the patient, new trauma is formed in the wound area when the drainage tube is pulled.
Es gibt zahlreiche Vorschläge für die Gestaltung von Drainageschläuchen im Hinblick auf deren Sicherheit gegen Verstopfen und deren möglichst atraumatische Ziehbarkeit. Beispielsweise wurde vorgeschlagen, die Per- forationslöcher in Längsschlitzen anzuordnen (EP-A-67140). In der DE- A-29 08952 wird ein Drainageschlauch beschrieben, bei dem die Perfo¬ rationslöcher in einer schraubenförmigen Nut liegen. In der FR-A-23 9575 wird vorgeschlagen, den Drainageschlauch mit einem flexiblen Schlauch¬ gebilde von maschenartiger Struktur zu überziehen. Die DE-A-3034835 offenbart einen Drainageschlauch, der aus einem mit einem schlaucharti¬ gen Siebüberzug überzogenen Stützelement gebildet wird.There are numerous suggestions for the design of drainage hoses with regard to their security against clogging and their atraumatic pullability. For example, it has been proposed to arrange the perforation holes in longitudinal slots (EP-A-67140). DE-A-29 08952 describes a drainage hose in which the perforations lie in a helical groove. In FR-A-23 9575 it is proposed to cover the drainage hose with a flexible hose structure with a mesh-like structure. DE-A-3034835 discloses a drainage hose which is formed from a support element covered with a hose-like screen covering.
Nachteilig an diesen Drainageschläuchen nach dem Stand der Technik ist zum einen der teilweise sehr große Aufwand bei der Herstellung, zum an- deren die durch die relativ rauhe Oberflächenstruktur bedingte immer noch sehr hohe Zugkraft, die beim Ziehen der Drainagen erforderlich ist. Beschreibung der ErfindungDisadvantages of these drainage hoses according to the prior art are, on the one hand, the sometimes very great outlay in terms of manufacture, and, on the other hand, the still very high tensile force due to the relatively rough surface structure, which is required when pulling the drainage. Description of the invention
Demgemäß liegt der Erfindung die Aufgabe zugrunde, einen Drainage¬ schlauch zum Ableiten von Sekreten aus Körper- und Wundhöhlen so auszubilden, daß die Nei ung zum Verstopfen weiter verringert und die Ziehbarkeit verbessert wird.Accordingly, the object of the invention is to design a drainage tube for draining secretions from body and wound cavities in such a way that the tendency to clog is further reduced and the ductility is improved.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß der Drainage¬ schlauch aus einem Grundschlauch, dessen Perforationslöcher in außen- seitigen rinnenartigen Vertiefungen angeordnet sind, besteht, der zu¬ mindest in seinem perforierten Teil mit einem enganl egenden dünn¬ wandigen Oberzugsschlauch überzogen ist, der im Bereich des perforierten Teils des Grundschiauchs siebartige Perforationslöcher aufweist. Dadurch wird erreicht, daß der Drainageschlauch eine relativ glatte Außenoberfläche aufweist. Die von dem dünnwandigen Oberzugsschlauch überzogenen Vertiefungen bilden ein Sekretflußbett, das von dem umgebenden Körpergewebe getrennt ist. Durch die Elastizität der durch den dünnwandigen Oberzugsschlauch gebildeten Außenwand des Sekret¬ flußbettes wird ein Festsaugen des umgebenden Körpergewebes verhindert. Der erfindungsgemäße Drainageschlauch läßt sich bereits durch Anwendung sehr geringer Zugkräfte bei deutlich verringerter Gefahr von Traumen ziehen. Als weiterer Vorteil kommt hinzu, daß sich im Sekretflußbett eventuell angesetzte Koagel beim Ziehen des Drainageschlauches nicht abgestreift werden können und somit beim Ziehen mit entfernt werden. Außerdem wird durch das Sekretflußbett der Druckausgleich über die gesamte Perforationsstrecke des Drainageschlauches begünstigt.According to the invention, this object is achieved in that the drainage hose consists of a base hose, the perforation holes of which are arranged in groove-like depressions on the outside, which is covered at least in its perforated part with a tight-fitting thin-walled cover hose, which in the Area of the perforated part of the base tube has sieve-like perforation holes. This ensures that the drainage hose has a relatively smooth outer surface. The depressions covered by the thin-walled cover tube form a secretion flow bed which is separated from the surrounding body tissue. The elasticity of the outer wall of the secretion bed formed by the thin-walled cover tube prevents the surrounding body tissue from being sucked up. The drainage hose according to the invention can be pulled by using very low tensile forces with a significantly reduced risk of trauma. A further advantage is that any clot that may have been attached to the secretion flow bed cannot be stripped off when the drainage tube is pulled, and can therefore be removed when the drain is pulled. In addition, the pressure balance over the entire perforation section of the drainage hose is promoted by the secretion flow bed.
Weitere Ausgestaltungen des Erfindungsgegenstandes ergeben sich aus den Unteransprüchen.Further refinements of the subject matter of the invention result from the subclaims.
Die Herstellung des Grundschlauches des erfindungsgemäßen Drainage¬ schlauches erfolgt auf an sich bekannte Weise. In die ausgeschnittenen rinnenartigen Vertiefungen werden die Perforationslöcher in bekannter Weise eingestanzt. Bevorzugt ist die übliche Anordnung der Löcher als Kreuzperforationslöcher, d.h. die Perforationslöcher liegen sich je-The basic hose of the drainage hose according to the invention is produced in a manner known per se. The perforation holes are punched into the cut-out groove-like depressions in a known manner. Preferred is the usual arrangement of the holes as cross perforation holes, i.e. the perforation holes are each
ΪOΕΪOΕ
OMPI weils paarweise gegenüber, wobei die gedachten Verbindungslinien be¬ nachbarter Paare von Perforationslöchern jeweils einen Winkel von 90° bilden. Der Grundschlauch wird aus Kostengründen zweckmäßigerweise aus Weich-PVC beispielsweise durch Extrudieren aus einer entsprechend ge- formten Düse hergestellt. Er besitzt die übliche Länge eines herkömm¬ lichen Drainageschlauches, beispielsweise etwa 50 cm. Der Durchmesser des Drainageschlauches bewegt sich in dem für Drainageschläuche übli¬ chen Rahmen, beispielsweise Charriere 9 bis 21. Eine bevorzugte Aus¬ führungsform weist einen Durchmesser von etwa Charriere 12 (4 mm) auf. Der Durchmesser der Perforationslöcher und deren gegenseitiger Abstand sind in weiten Grenzen variierbar und entsprechen den bei Drainageschläu¬ chen üblichen Werten. Die rinnenartigen Vertiefungen werden vorzugsweise so gestaltet, daß ihr Querschnitt möglichst keine Kanten aufweist. Es ver steht sich von selbst, daß Perforationslöcher nur in dem Teil des Grund- Schlauches angebracht sind, der sich bei seiner Anwendung in der Körper- oder Wundhöhle befindet, d.h. dem intrakorporalen Teil des Grundschlauches, der eine Länge zwischen etwa 5 cm und 20 cm aufweisen kann. Die rinnenartigen Vertiefungen können auf den intrakorporalen Teil des Grundschlauches beschränkt sein oder sich vorzugsweise auch in den sich bei der Anwendung außerhalb des Körpers befindlichen Teil des Drainageschlauches erstrecken.OMPI because in pairs opposite, the imaginary connecting lines of adjacent pairs of perforation holes each forming an angle of 90 °. For reasons of cost, the basic hose is expediently produced from soft PVC, for example by extrusion from a correspondingly shaped nozzle. It has the usual length of a herkömm ¬ union drainage tube, for example about 50 cm. The diameter of the drainage hose moves in the frame usual for drainage hoses, for example career 9 to 21. A preferred embodiment has a diameter of approximately career 12 (4 mm). The diameter of the perforation holes and their mutual spacing can be varied within wide limits and correspond to the values customary for drainage hoses. The groove-like depressions are preferably designed so that their cross section has no edges if possible. It goes without saying that perforation holes are only made in the part of the basic tube that is in use in the body or wound cavity, ie the intracorporeal part of the basic tube that has a length between about 5 cm and 20 cm can have. The channel-like depressions can be limited to the intracorporeal part of the basic tube or preferably also extend into the part of the drainage tube that is outside of the body during use.
Der dünnwandige Überzugsschlauch, der auf den Grundschlauch enganliegend aufgezogen ist, wird aus den für dünnwandige Schlauchgebilde üblichen Materialien hergestellt. Vorteilhaft ist die Verwendung von Materialien mit günstiger Biokompatibilität, wie z.B. Polyurethan PUR) oder Polyvinylidenfluorid. Hieraus ist ein weiterer Vorteil des Erfindungsgegenstandes ersichtlich: Man erhält mit einem sehr geringen Einsatz des relativ teuren biokompatiblen Materials für den dünnwandigen Überzugsschlauch einen hervorragenden gewebeverträgliche Drainageschlauch, weil, wie oben bereits erwähnt, der Grundschlauch, der keinen direkten Kontakt mit dem Körpergewebe hat, aus dem weniger ver¬ träglichen kostengünstigeren Weich-PVC hergestellt werden kann. Besonders vorteilhaft ist das Aufbringen des Überzugsschlauches als ~ Schrumpfschlauch. Der dünnwandige Oberzugsschlauch, dessen ursprüng¬ licher innerer Durchmesser geringer ist als der Außendurchmesser des Grundschiauchs, wird je nach Material etwa im Verhältnis 1:2 bis 1:4, vorzugsweise 1:3 aufgeweitet, sodann beispielsweise mittels einer Nadelwalze rundum auf einer Länge, die der Perforationslänge des Grundschlauches entspricht, mit einer Lochgröße von 0,5 bis 1,5 mm, vorzugsweise 1 mm versehen. Durch von außen zugeführte Wärme schrumpft der Schrumpfschlauch auf sein Ausgangsmaß zurück. Dadurch wird ein Fest- sitz auf dem innenliegenden Grundschlauch erreicht. Eine weitere Be¬ festigung zwischen Grundschlauch und Oberzugsschlauch ist nicht er¬ forderlich.The thin-walled covering tube, which is fitted tightly to the base tube, is made from the materials customary for thin-walled tube structures. It is advantageous to use materials with favorable biocompatibility, such as polyurethane (PUR) or polyvinylidene fluoride. A further advantage of the subject matter of the invention can be seen from this: with a very low use of the relatively expensive biocompatible material for the thin-walled covering tube, an excellent tissue-compatible drainage tube is obtained, because, as already mentioned above, the basic tube, which has no direct contact with the body tissue, is obtained the less compatible, less expensive, soft PVC can be produced. Particularly advantageous is the application of the coating tube as ~ shrink tubing. The thin-walled cover tube, the original inner diameter of which is smaller than the outer diameter of the base tube, is expanded depending on the material in a ratio of approximately 1: 2 to 1: 4, preferably 1: 3, and then, for example, by means of a needle roller all the way to a length that corresponds to the perforation length of the basic hose, provided with a hole size of 0.5 to 1.5 mm, preferably 1 mm. The heat shrinking shrinks back to its original size due to heat supplied from outside. This ensures a tight fit on the inner basic hose. A further fastening between the basic hose and the upper pull hose is not necessary.
Durch das Zurückschrumpfen des Überzugsschlauches werden dessen in aufgeweitetem Zustand angebrachten Perforationslöcher weitgehend ent¬ sprechend dem Aufweitungsmaß reduziert. So reduziert sich beispiels¬ weise eine ursprüngliche Lochgröße von etwa 1 mm in einem 1:3 aufge¬ weiteten Schlauch beim Schrumpfen in der Querrichtung um etwa 2/3. Durch den Schrumpfungsprozeß nehmen die ursprünglich runden Löcher eine ovale Form an und werden ohne scharfe Kanten ausgebildet.By shrinking back of the covering tube, its perforation holes, which are provided in the expanded state, are largely reduced according to the extent of expansion. For example, an original hole size of about 1 mm in a 1: 3 widened tube is reduced by about 2/3 when shrinking in the transverse direction. Due to the shrinking process, the originally round holes take on an oval shape and are formed without sharp edges.
Nachstehend wird die Erfindung anhand der Fig. 1 und 2 erläutert.The invention is explained below with reference to FIGS. 1 and 2.
Fig. 1 zeigt in starker Vergrößerung einen Längsschnitt durch einen erfindungsgemäßen Drainageschlauch.Fig. 1 shows a large section of a longitudinal section through a drainage hose according to the invention.
Fig. 2 zeigt in perspektivischer, teilweise aufgebrochener, stark ver¬ größerter Querschnittsdarstellung den perforierten Teil eines erfin¬ dungsgemäßen Drainageschlauches.2 shows a perspective, partially broken, greatly enlarged cross-sectional view of the perforated part of a drainage hose according to the invention.
OMPI Aus Fig. 1 ist zu erkennen, wie der Grundschlauch 1 in seiner Längsrich-^ tung mit rinnenartigen Vertiefungen 2 versehen ist. In den rinnenartigen Vertiefungen 2 sind die Perforationslöcher 3 angeordnet, und zwar paar¬ weise, jeweils um einen Winkel von 90° gegeneinander versetzt. Der Grundεchlauch 1 wird von einem Oberzugsschlauch 4 enganliegend umfaßt.OMPI From Fig. 1 it can be seen how the basic hose 1 is provided in its longitudinal direction with groove-like depressions 2. The perforation holes 3 are arranged in the groove-like depressions 2, in pairs, each offset by an angle of 90 °. The basic hose 1 is tightly enclosed by an upper pull hose 4.
In Fig. 2 sind die Perforationslöcher 5 des Überzugsschiauchs 4 ebenso wie in Fig. 1 nur schematisch angedeutet. In Wirklichkeit können diese in weitaus größerer Dichte vorhanden sein und damit insgesamt eher eine siebartige Anordnung darstellen.In FIG. 2, the perforation holes 5 of the covering tube 4, as in FIG. 1, are only indicated schematically. In reality, these can be present in a much greater density and thus overall represent a sieve-like arrangement.
O P O P

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Drainageschlauch zum Ableiten von Sekreten aus Körper- und Wundhöh¬ len, dadurch gekennzeichnet, daß er aus einem Grundschlauch (1), dessen Perforationslöcher (3) in außenseitigen rinnenartigen Vertiefungen (2) an¬ geordnet sind, besteht, der zumindest in seinem perforierten Teil mit einem enganliegenden dünnwandigen Überzugsschlauch (4) überzogen ist, der im Bereich des perforierten Teils des Grundschi auchs (1) siebartige Perforations löcher (5) aufweist.1. Drainage tube for draining secretions from body and Wundhöh¬ len, characterized in that it consists of a base tube (1), the perforation holes (3) are arranged in the outside groove-like depressions (2), at least in his perforated part is covered with a tight-fitting thin-walled covering tube (4) which also has sieve-like perforation holes (5) in the region of the perforated part of the base ski (1).
2. Drainageschlauch nach Anspruch 1, dadurch gekennzeichnet, daß sich die rinnenartigen Vertiefungen (2) in der Wand des Grundschi auchs (1) parallel zu dessen Achse erstrecken.2. Drainage hose according to claim 1, characterized in that the channel-like depressions (2) in the wall of the Grundschi also (1) extend parallel to its axis.
3. Drainageschlauch nach Anspruch 2, dadurch gekennzeichnet, daß der Grundschlauch (1) vier gleichmäßig auf dessen umfang verteilte rinnenartige Vertiefungen (2) aufweist.3. Drainage hose according to claim 2, characterized in that the basic hose (1) has four evenly distributed on its circumference channel-like depressions (2).
4. Drainageschlauch nach Anspruch 3, dadurch gekennzeichnet, daß die Perforationslöcher (3) des Grundschlauches (1) sich paarweise ge¬ genüberliegen und die Verbindungslinien benachbarter Paare von Perfo¬ rationslöcher (3) jeweils einen Winkel von 90° bilden.4. Drainage hose according to claim 3, characterized in that the perforation holes (3) of the base hose (1) lie opposite each other in pairs and the connecting lines of adjacent pairs of perforation holes (3) each form an angle of 90 °.
5. Drainageschlauch nach Anspruch 1, dadurch gekennzeichnet, daß es sich bei dem siebartig perforierten Überzugsschlauch (4) um einen5. Drainage hose according to claim 1, characterized in that it is in the sieve-like perforated covering hose (4)
Schrumpfschlauch handelt.Shrink tubing is involved.
6. Drainageschlauch nach Anspruch 1, dadurch gekennzeichnet, daß die siebartig angeordneten Perforationslöcher (5) des Überzugsschlauches einen Durchmesser von 0,2 bis 0,4 mm besitzen. 6. Drainage hose according to claim 1, characterized in that the perforated holes (5) of the covering hose arranged in a sieve shape have a diameter of 0.2 to 0.4 mm.
PCT/EP1984/000220 1983-07-19 1984-07-17 Draining tube WO1985000526A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19833325920 DE3325920C2 (en) 1983-07-19 1983-07-19 Drainage tube
CH3940/83-1 1983-07-19
DEP3325920.8 1983-07-19
CH394083 1983-07-19

Publications (1)

Publication Number Publication Date
WO1985000526A1 true WO1985000526A1 (en) 1985-02-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1984/000220 WO1985000526A1 (en) 1983-07-19 1984-07-17 Draining tube

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EP (1) EP0176516A1 (en)
WO (1) WO1985000526A1 (en)

Cited By (10)

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EP0191234A1 (en) * 1984-12-19 1986-08-20 Sherwood Medical Company Method of making a grooved medical tube and apparatus for grooving the tube
US4717379A (en) * 1984-06-29 1988-01-05 Mediplast Ab Catheter, probe or similar device
US4826480A (en) * 1987-04-29 1989-05-02 Pacesetter Infusion, Ltd. Omentum diffusion catheter
US4850972A (en) * 1987-01-16 1989-07-25 Pacesetter Infusion, Ltd. Progammable multiple pump medication infusion system with printer
WO1992004071A1 (en) 1990-08-29 1992-03-19 Helmut Billino Probe designed to be inserted in cavities in the human body
US5116310A (en) * 1990-07-30 1992-05-26 Helix Medical, Inc. Multiple lumen wound drain with bypass openings
US5324276A (en) * 1991-05-01 1994-06-28 Rosenberg Paul H Device and method for inhibiting intravascular device associated infection
GB2295092A (en) * 1994-11-17 1996-05-22 Simpla Plastics Body fluid drainage apparatus
US5693011A (en) * 1995-04-27 1997-12-02 Surgical Dynamics, Inc. Surgical suction cutting instrument
FR2940914A1 (en) * 2009-01-13 2010-07-16 Georges Boussignac Medicinal fluid applying device for use during stitching of local zone e.g. injured zone, of patient, has openings bored inside longitudinal direction grooves that are rectilinear and parallel to longitudinal axis of tubular element

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2240026A1 (en) * 1973-08-06 1975-03-07 Rhone Poulenc Sa Drain for medical use - has external lengthwise groove communicating with interior passage
FR2395757A1 (en) * 1977-06-27 1979-01-26 Intermedicat Gmbh SOFT DRAINAGE HOSE TO EVACUATE WOUND SECRETIONS DURING TREATMENT AFTER SURGICAL OPERATION

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2240026A1 (en) * 1973-08-06 1975-03-07 Rhone Poulenc Sa Drain for medical use - has external lengthwise groove communicating with interior passage
FR2395757A1 (en) * 1977-06-27 1979-01-26 Intermedicat Gmbh SOFT DRAINAGE HOSE TO EVACUATE WOUND SECRETIONS DURING TREATMENT AFTER SURGICAL OPERATION

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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