EP2806937A1 - Cathéter à ballonnet - Google Patents

Cathéter à ballonnet

Info

Publication number
EP2806937A1
EP2806937A1 EP13706437.4A EP13706437A EP2806937A1 EP 2806937 A1 EP2806937 A1 EP 2806937A1 EP 13706437 A EP13706437 A EP 13706437A EP 2806937 A1 EP2806937 A1 EP 2806937A1
Authority
EP
European Patent Office
Prior art keywords
balloon
balloon catheter
groove
catheter according
outside
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13706437.4A
Other languages
German (de)
English (en)
Inventor
Martina Maria Schmitt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualimed Innovative Medizinprodukte GmbH
Original Assignee
Qualimed Innovative Medizinprodukte GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualimed Innovative Medizinprodukte GmbH filed Critical Qualimed Innovative Medizinprodukte GmbH
Publication of EP2806937A1 publication Critical patent/EP2806937A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/10—Balloon catheters
    • A61M25/1002—Balloon catheters characterised by balloon shape
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/08—Materials for coatings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L29/00—Materials for catheters, medical tubing, cannulae, or endoscopes or for coating catheters
    • A61L29/14—Materials characterised by their function or physical properties, e.g. lubricating compositions
    • A61L29/16—Biologically active materials, e.g. therapeutic substances
    • 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
    • A61M25/104—Balloon catheters used for angioplasty
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
    • A61L2300/416—Anti-neoplastic or anti-proliferative or anti-restenosis or anti-angiogenic agents, e.g. paclitaxel, sirolimus
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
    • A61L2300/60—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a special physical form
    • A61L2300/606—Coatings
    • 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
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/105—Balloon catheters with special features or adapted for special applications having a balloon suitable for drug delivery, e.g. by using holes for delivery, drug coating or membranes
    • 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
    • A61M2025/1043—Balloon catheters with special features or adapted for special applications
    • A61M2025/1086—Balloon catheters with special features or adapted for special applications having a special balloon surface topography, e.g. pores, protuberances, spikes or grooves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/04—Force
    • F04C2270/042—Force radial
    • F04C2270/0421—Controlled or regulated

Definitions

  • the invention relates to a balloon catheter having a catheter body and a balloon, wherein the balloon is arranged along part of the length of the balloon catheter and can be expanded by supplying a pressure medium via a supply line.
  • Balloon catheters are known and used in the context of angioplasty to dilate a narrowed for example by arteriosclerotic deposits blood vessel.
  • the balloon catheter is introduced into the blood vessel system and the balloon located in the distal region of the balloon catheter is brought to the constriction of the blood vessel in the relaxed state.
  • the balloon is widened by means of a pressure medium, thereby eliminating the vasoconstriction. In addition, be frequent
  • Stents implanted which are intended to ensure that the vessel remains permanently open
  • balloons are now often used, which are additionally coated with a drug that is delivered to the vessel wall in the expansion of the balloon.
  • cytostatic paclitaxel is used in particular, another useful drug is rapamycin.
  • a balloon catheter with a catheter body and a balloon wherein the balloon along a portion of the length of the balloon catheter and expandable by supplying a pressure medium via a supply line and wherein the balloon on its Au .seite a plurality of punctate or groove-shaped Has depressions.
  • the adhesion of the drug on the Balloon wseite is significantly improved if it has depressions.
  • an increased amount of drug can accumulate in the wells.
  • amounts of drug better on the balloon remain, for example, during storage or during the introduction of the balloon into the vascular system. The delivery of drug in areas of the blood vessel where no treatment is required is also minimized accordingly.
  • a well surface having balloon surface also improves the transfer of forces to the vessel wall.
  • this is due to the fact that, in the case of a structured surface, the forces are more exerted by individual projecting areas of the balloon surface.
  • pressure force per area
  • Stent expansion also enhances the effect because the balloon's structured surface "snags" to the stent's braid structure, and the stent-balloon interface counteracts the unwanted contraction of the stent by making the individual parts of the stent stronger In expansion, the stent is therefore less prone to contraction than to stretching in the braid structure located expansion elements. These effects are also achieved when the balloon is not coated with a drug.
  • any therapeutically useful drug can be used. It can also be a mixture of several active ingredients. In particular, these are those drugs that inhibit cell proliferation to prevent the expanded area of the vessel from being re-sealed by ingrowing cells.
  • the coating of balloons is basically known in the art, and the corresponding coating processes can be used. Examples of useful drugs include paclitaxel, rapamycin, everolimus, tacrolimus, zotarolimus, and related structural derivatives.
  • the drug coating may contain adjuvants.
  • adjuvants examples include polyvinylpyrrolidone (PVP), polysorbates or polyethylene glycol.
  • PVP polyvinylpyrrolidone
  • a biocompatible plasticizer such as glycerol, polyethylene glycol or propylene glycol may be included in the drug coating.
  • the balloon must be filled via a supply line with a pressure medium, in order to bring about an expansion.
  • This supply line typically passes through the interior of the catheter body, wherein the catheter body may also have a plurality of channels or concentrically arranged passages if required. For example, another longitudinal channel may serve to guide a guidewire.
  • the expansion of the balloon takes place under high pressure, which is typically between 6 and 20 bar.
  • the catheter body has an elongated shape, so that the balloon catheter can be introduced, for example via the femoral artery and advanced under X-ray control to the narrowed site.
  • the doctor-facing end, ie, the end from which the physician advances the balloon catheter, is referred to as proximal, the opposite end as the distal end.
  • Distal thus corresponds to the feed direction of the balloon catheter.
  • the balloon is located in the region of the distal end of the balloon catheter.
  • the balloon itself typically has an oblong shape, so that the dilation of the blood vessel or the application of a drug can take place over a sufficient range.
  • a balloon variant has an internal passage for the surrounding body fluid, especially blood.
  • This may be, for example, a so-called tubular balloon, in which the tube is helically wound into an expandable wall and surrounded by the drug-permeable outer membrane.
  • a wound tubular balloon is described, for example, in WO 2007/012443 A1. The use of such a peristaltic balloon with a central passageway allows the balloon to be left in a vessel for a period of time, thereby extending the period of application of the drug.
  • the depressions applied to the outside of the balloon can be designed in particular groove-shaped.
  • the recesses may be formed circumferentially on the balloon surface, wherein the recesses may be aligned orthogonal to the longitudinal axis of the balloon.
  • the groove-shaped depressions on the outside of the balloon run helically in a helical line, wherein the longitudinal axis of the helix corresponds to the longitudinal axis of the balloon.
  • the recesses or the protruding areas of the balloon located therebetween virtually form a thread.
  • a particularly dense profiling of the balloon surface is brought about.
  • the wells have a depth of 1 to 20 ⁇ , preferably from 3 to 8 ⁇ and more preferably from 4 to 6 ⁇ .
  • Such wells are on the one hand suitable to take a sufficient amount of drug and store them until the right time, on the other hand, the depth is also sized so that when expanding the balloon, the drug is effectively applied to the vessel wall. Also with regard to the application of force to the vessel wall or a stent, said area has been found to be advantageous.
  • the individual wells have a distance of 200 to 400 ⁇ , in particular of about 300 ⁇ . This is especially true in the case of groove-shaped depressions, which are arranged substantially parallel. Both in terms of drug delivery and exercise, this has proven to be the most appropriate area.
  • the exact distance between the indentations may be the same or may vary within the specified range. In the case of groove-shaped depressions, it will be easier to start from a regular distance, while the distance between punctiform depressions may vary.
  • Figure 1 is a schematic representation of a
  • Figure 2 is a schematic representation of another embodiment of the balloon catheter according to the invention.
  • FIG. 1 shows schematically an embodiment of the balloon catheter 1 according to the invention in longitudinal section.
  • the balloon catheter 1 has a balloon 2, which can be acted upon by a pressure medium for widening within a stenotic area of a blood vessel. This pressure medium is introduced via the supply line 3 in the balloon 2.
  • the Surface of the balloon 2 is provided with a coating containing a drug. This is applied with expanded balloon 2 on the vessel wall.
  • the balloon 2 On its surface, the balloon 2 has a plurality of groove-shaped depressions 4, which are arranged in a thread shape in this embodiment.
  • the arrangement of the recesses 4 ensures that a higher loading of the balloon surface with the drug is possible.
  • the adhesion of the medicament to the balloon surface and the application of force to the vessel or stent surrounding the balloon 2 are also improved.
  • FIG. 2 shows an alternative embodiment, which differs from the embodiment according to FIG. 1 in that the depressions 4 are punctiform and less regularly arranged on the surface of the balloon 2.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Pulmonology (AREA)
  • Hematology (AREA)
  • Anesthesiology (AREA)
  • Biophysics (AREA)
  • Child & Adolescent Psychology (AREA)
  • Epidemiology (AREA)
  • Vascular Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Molecular Biology (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

L'invention concerne un cathéter à ballonnet comprenant un corps de cathéter (1) et un ballonnet (2). Le ballonnet (2) est agencé sur une partie de la longueur du cathéter à ballonnet et peut être dilaté par l'amenée d'un agent de pression par l'intermédiaire d'un canal d'amenée (3). Le cathéter à ballonnet est caractérisé en ce que le ballonnet (2) comporte sur son côté extérieur une pluralité de creux (4) en forme de points ou de rainures. De cette manière, l'application de forces sur une paroi de vaisseau entourant le ballonnet (2) ou sur une endoprothèse est améliorée. En outre, si le ballonnet (2) est muni d'un médicament, l'adhérence du médicament s'en trouve améliorée.
EP13706437.4A 2012-01-24 2013-01-23 Cathéter à ballonnet Withdrawn EP2806937A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012001188A DE102012001188A1 (de) 2012-01-24 2012-01-24 Ballonkatheter
PCT/EP2013/051182 WO2013110628A1 (fr) 2012-01-24 2013-01-23 Cathéter à ballonnet

Publications (1)

Publication Number Publication Date
EP2806937A1 true EP2806937A1 (fr) 2014-12-03

Family

ID=47754432

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13706437.4A Withdrawn EP2806937A1 (fr) 2012-01-24 2013-01-23 Cathéter à ballonnet

Country Status (5)

Country Link
US (1) US20140371673A1 (fr)
EP (1) EP2806937A1 (fr)
CN (1) CN104254362A (fr)
DE (1) DE102012001188A1 (fr)
WO (1) WO2013110628A1 (fr)

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JP6668131B2 (ja) * 2016-03-23 2020-03-18 テルモ株式会社 バルーンカテーテルおよびその製造方法並びに処置方法
JP2017169738A (ja) * 2016-03-23 2017-09-28 テルモ株式会社 バルーンカテーテルおよびその製造方法並びに処置方法
CN107050625B (zh) * 2017-01-17 2023-05-23 重庆市江津区中心医院 防深插增强支撑型导引导管
CN113939324A (zh) * 2019-04-08 2022-01-14 巴德外周血管股份有限公司 在经改性装置表面上具有药物洗脱涂层的医疗装置
CN112089951A (zh) * 2019-06-18 2020-12-18 微创神通医疗科技（上海）有限公司 一种医用球囊、球囊导管及医疗装置
CN116407735A (zh) * 2021-12-29 2023-07-11 杭州矩正医疗科技有限公司 载药球囊导管及可生成血管微支架的药物的输送系统
CN116407736A (zh) * 2021-12-29 2023-07-11 杭州矩正医疗科技有限公司 载药球囊导管及其制备方法
CN117815454A (zh) * 2023-10-31 2024-04-05 北京管桥医疗科技有限公司 复合药物涂层及其制备方法和药物球囊导管
CN119680082B (zh) * 2024-12-09 2025-09-30 华中科技大学同济医学院附属同济医院 用于神经源性直肠康复训练的测压球囊导管以及训练方法

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Also Published As

Publication number Publication date
US20140371673A1 (en) 2014-12-18
WO2013110628A1 (fr) 2013-08-01
CN104254362A (zh) 2014-12-31
DE102012001188A1 (de) 2013-07-25

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