Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
  • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
  • A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
  • A61F2/958—Inflatable balloons for placing stents or stent-grafts
• • 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
  • 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
  • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
  • A61M2025/0177—Introducing, guiding, advancing, emplacing or holding catheters having external means for receiving guide wires, wires or stiffening members, e.g. loops, clamps or lateral tubes
• • 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
  • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
  • A61M25/06—Body-piercing guide needles or the like
  • A61M25/0662—Guide tubes
  • A61M2025/0681—Systems with catheter and outer tubing, e.g. sheath, sleeve or guide tube
• • 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
  • A61M2025/1081—Balloon catheters with special features or adapted for special applications having sheaths or the like for covering the balloon but not forming a permanent part of the balloon, e.g. retractable, dissolvable or tearable sheaths
• • 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
  • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
  • A61M25/06—Body-piercing guide needles or the like
  • A61M25/0662—Guide tubes
  • A61M25/0668—Guide tubes splittable, tear apart
• • 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
  • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
  • A61M25/09—Guide wires

Definitions

• the invention primarily relates to a balloon catheter, in particular a balloon catheter with stent, wherein the catheter has a protective sheath which at least partially surrounds the balloon and possibly also the stent. Furthermore, the invention also relates to a protective sheath for a balloon catheter and to a method for introducing a guide wire into the interior of a balloon catheter.
• Catheters are used in medicine for various diagnostic or therapeutic purposes. They are usually introduced into hollow organs, such as stomach, intestine, but also via the bloodstream in blood vessels or in the heart, to diagnose or treat in this way on the spot.
• So-called balloon catheters are used in particular in percutaneous transluminal angioplasty (PTA) and in percutaneous transluminal coronary angioplasty (PTCA). These terms summarize techniques for expanding a constricted or reopening of a closed (usually peripheral) blood vessel or a coronary vessel.
• a so-called guiding catheter usually proceeding via an access to the inguinal artery, is guided against the bloodstream to the heart and inserted there into the opening of the coronary artery.
• the balloon catheter is then advanced through the interior of the guide catheter.
• the balloon At the distal end of the balloon catheter is the balloon, with the aid of which the constriction of the coronary vessel in question is expanded.
• a vascular support is used to reduce the risk of reocclusion.
• These stents are thin wire mesh (called stents), which are placed on a balloon catheter in a folded state. Due to the expansion of the balloon, the stent is pressed against the vessel wall and this vessel thereby kept open.
• the vasoconstriction (under X-ray control) must be passed through a thin, flexible wire, the so-called guide wire.
• This guide wire serves as a kind of guide rail, along which the balloon catheter is later moved into the constriction.
• Such guidewires are very thin and usually have diameters far below 1 mm.
• the appropriate guide wire distal
• the guide wire must be inserted into the balloon catheter itself. Only then can the guide wire fulfill its function as a guide rail for the balloon catheter.
• balloon catheters usually have a protective cover which protects the balloon itself and any stent present from damage.
• conventional protective covers must be removed before insertion of the guide wire, so that now by the necessary handling of the balloon and possibly the stent during insertion of the guide wire can be damaged either by itself or otherwise.
• This is particularly important in balloons and stents, which are additionally coated.
• These may, for example, be so-called functional coatings which make the coated surfaces suitable for special applications, such as a hydrophilic coating, or coatings of or with active substances, in particular medicaments. In such cases, the coating may be at least partially damaged or peeled off.
• the user takes the balloon catheter in one hand in such a way that the leading end, ie the front end of the catheter or the tip of the catheter rests on the inside of the tip of a finger, in particular the index finger. Then with the other hand, the (rear) end of the guide wire is also placed on the corresponding inner side of the fingertip, as accurately as possible in the axial extension of the catheter.
• this procedure has the disadvantage, for example, that placing a possibly coated balloon catheter, in particular a balloon catheter coated with medicaments on the fingertip, inevitably leads to a partial abrasion of this coating in the area of the finger. This reduces the drug dose on the balloon catheter in an undesirable and unpredictable manner.
• the invention also includes the method described in claim 17 for inserting a guidewire into a balloon catheter. Preferred embodiments of this balloon catheter, this protective cover and this method are defined in the dependent product claims.
• the term "balloon catheter” is understood to mean a catheter which is usually made of plastic and which has a deployable balloon which is usually located at the tip of the catheter, where the balloon may also be (functionally) coated, preferably with at least one medicament or
• a balloon catheter often has at least two or more lumens extending longitudinally of the balloon catheter, with an inner lumen receiving the guidewire and a lumen further outward containing the inflation medium for the Bal ion Balloon catheters are used primarily in angioplasty, ie in dilated vessels.
• stent also in the sense of the German term “vascular support” refers to a medical implant that is introduced into hollow organs in order to keep them open.
• stents are usually constructed in the form of a lattice as tubes, which may consist of metal and / or plastic. Even such stents can be functional and in particular coated with drugs or other active ingredients.
• the term "protective sheath” is intended to encompass all objects in the manner of a sheath or sheath which at least partially surround (directly) the balloon catheter and thus shield or protect the corresponding parts of the balloon catheter from external influences Balloon catheter, and optionally also an additionally provided stent of the protective cover substantially completely, in particular completely, ie completely enclosed.
• a wire (or possibly also an object with the same function as, for example, a spring tube or the like.) Designated, which serve in the manner of a guide rail for the movement of a balloon catheter within a hollow organ, in particular within a vessel
• distal and proximal as used in this application are to be understood in the sense of a position and direction designation referring to the user of the catheter, ie for example the physician.
• proximal means - obvious - when talking about a distal end of the protective sheath or catheter, it means that, relative to the functional state of the corresponding article, the end in question is the front end of the sheath or catheter which is "removed from the user (doctor)". The user (doctor) then grips the catheter, for example, at the proximal (rear) end of the protective sleeve or the catheter.
• a protective sheath which at least partially, preferably substantially completely encloses the balloon and optionally also the stent.
• an insertion aid ie a device which facilitates the insertion of a guide wire into the balloon catheter, that is to say into the corresponding lumen of the balloon catheter, is integrated in the distal end of the protective cover.
• the insertion aid is already preassembled on the protective cover or is formed integrally with this protective cover.
• a corresponding opening must be created on the insertion aid integrated into the protective cover, or this opening can preferably already be provided on the insertion aid. In the latter case, then no further, possibly complex measures are required to create such an opening on the insertion first.
• means are provided on the insertion, which allow a formation of the opening in a simple manner. For example, predetermined breaking points or perforations or cuts in the protective cover may be present be, with the help of a guide wire, the protective cover in the appropriate place simply pierced and thus can create the necessary opening for insertion independently.
• an article or a tool may optionally be provided on the protective cover, which may either hold open a corresponding opening on the insertion aid or facilitate the creation of such an opening.
• Such means may also serve to prevent inadvertent removal of the protective sheath from the catheter (optionally in addition to the function previously described in connection with the opening at the introducer).
• said means may be a stylet-style tool which, on the one hand, can hold open or open the opening on the guidewire protective sheath and, on the other hand, unintentionally remove the protective sheath from the catheter, for example by slipping off. prevented.
• the insertion aid integrated in the protective sleeve is preferably channel-like or tubular.
• the elongated guide wire can be guided in a simple manner within the insertion aid in the direction of the interior of the catheter. It is further preferred if the insertion aid widens in a funnel-like manner in the direction of the distally provided opening, d. H. in the direction of this opening has a larger cross-sectional area than in the direction of the interior of the catheter.
• the guide wire can be more easily inserted (threaded) into the channel-like or tubular part of the insertion aid.
• the shape of the cross-sectional area of a channel-like or tubular insertion aid is not critical according to the invention, so that, for example, triangular, rectangular, square, oval or any other shaped cross-sectional areas can be realized here.
• the corresponding cross-sectional areas are circular so that they correspond to the generally circular cross-sectional area of guide wires.
• embodiments of the balloon catheter are preferred in which a depression in the manner of a trough or an open channel is formed at the distal end of the insertion. Possibly. This recess can also be formed at this end of the insertion.
• This trough-like or channel-like depression serves the introduction of the guide wire, ie the described insertion or threading into the corresponding opening, here in the Opening the insertion aid (further) to facilitate.
• the recess which is open on one side ie the recess which is generally open in use and preferably also open on one side, has the advantage that the guide wire can be inserted into this depression laterally and / or from above. As a result, the guide wire is virtually automatically positioned correctly in relation to the opening into which it is to be inserted / threaded. An axial approach of the guide wire to the corresponding opening with a precise meeting of the corresponding opening is avoided in this way.
• the depression described can basically have any cross-sectional area.
• a circular-segment-shaped, preferably semicircular, cross-sectional area or a V-shaped cross-sectional area is preferred.
• the guide wire will arrange after insertion / insertion in the recess in the lower region of the recess, and is accordingly movable with the guide thus achieved in the direction of the opening.
• the "capture surface" for the guidewire can also be increased considerably compared to cone-shaped funnels with the same amount of material, since such a depression can be flatter overall geometric offset of the recess in the axial direction (compared to the rest of the geometry of the insertion) are accepted, since such an offset does not adversely affect the insertion / threading process.
• the recess provided according to the invention facilitates the insertion / threading of the guide wire into the opening of the insertion aid. Accordingly, it is further preferred if this opening is aligned with the lowest point of the cross-sectional area of the depression, so that the guide wire introduced into the recess inevitably slides into this opening, which is supported by a corresponding configuration of the corresponding end of the recess towards the opening can. Accordingly, there is also the opening of the balloon catheter, into which the guide wire then slides out of the insertion aid. is guided, preferably at the level of this lowest point of the cross-sectional area of the recess.
• this depression is marked, in particular characterized for improving its visual recognition by the user.
• a marking is a color coding. This (color coding) makes it easier for the user to identify the depression in which he is to insert or insert the guide wire.
• this marking in particular colored marking on the inside of the recess is provided, i. at the side of the depression with which the guidewire comes into contact.
• the protective sleeve has proximally adjacent to the insertion aid at least one region which is flattened in relation to the remaining shape of the protective sleeve.
• this flattened area may be in the use state of the insertion at least on the downwardly oriented side of the protective cover, i. on the page, for example, in the manner described with the finger of the user in touch.
• the corresponding flattening can be located not only on this lower side of the insertion aid but also on its upper side, in particular due to the easier manufacture of such a flattened shape.
• the corresponding area of the insertion aid / protective cover can easily be placed on the fingertip of a user.
• the balloon catheter also does not slip off the fingertip in this way.
• the handling of the balloon catheter according to the invention is thus improved overall.
• the insertion aid may preferably be widened like a funnel. This also facilitates the reception and fixing of the catheter, which, if appropriate, takes place at this proximal end of the insertion aid.
• the shape of a cross-sectional area of the funnel-like enlargement is preferably matched to the shape of the cross-sectional area of the catheter, which in this case too is, in particular, circular cross-sectional areas.
• the removal of the protective sheath takes place (only) after insertion of the guide wire into the interior of the catheter.
• the protective cover means for removing this protective cover are provided by the catheter.
• Such means are preferably provided in the longitudinal direction of the protective cover (with respect to the longitudinal direction of the catheter and the guide wire inserted therein).
• Such longitudinal means facilitate the removal of the protective cover, as in this way the protective cover can be easily removed or peeled off the guide wire and / or the catheter. This will be clarified in connection with the drawing.
• several of said means can be provided simultaneously on the protective cover or in the protective cover.
• the protective cover can be formed of a stable, mechanically strong material which can reliably protect the balloon and its coating against damage. By using such a solid material, it is also possible to avoid or at least reduce a basically undesirable contact between the protective covering and the outer surface of the balloon. A (subsequent) opening, slicing or the like of the protective cover, for the tools such as knives, scissors and the like are required is not required.
• a type of handle for these means is additionally provided.
• this handle which may be preferably designed in the manner of a tab or a notch
• the means for removing the protective cover can be operated in a simpler manner. For example, can be attacked at the corresponding tab or notch by a user of the balloon catheter and in this way then the protective cover, for example, based on existing perforations simply split or torn.
• said protective cover may be made of different materials, preferably using plastic materials.
• the protective sheath may be visually marked or colored, for example, with conspicuous (signal) colors and / or patterns. Also, a deliberately increased diameter of the protective cover over at least part of its length can fulfill this (safety) function.
• the balloon catheter according to the invention may preferably be located within a sterile outer packaging. Accordingly, such a sterile outer packaging, in which a balloon catheter according to the invention is contained, the subject of the invention.
• the invention also includes the protective cover with integrated insertion aid, which has already been described in connection with the balloon catheter according to the invention.
• a protective sheath is intended for a balloon catheter, in particular for a balloon catheter with a stent, and encloses the balloon and possibly also the stent at least partially, preferably substantially completely.
• an insertion aid for a guide wire is integrated in the protective cover, in particular in the distal end of the protective cover.
• the protective cover can advantageously be designed as already described in connection with the preferred embodiments of the balloon catheter according to the invention.
• the invention also includes a method for introducing a guide wire into the interior of a balloon catheter, in particular a balloon catheter with stent.
• a balloon catheter or a balloon catheter with stent is provided, this balloon catheter a Protective cover which encloses the balloon and possibly also the stent at least partially, substantially completely.
• an insertion aid according to the invention is integrated into the distal end of the protective cover. Then, according to the method, the guide wire is inserted distally over the insertion aid into the protective sheath.
• a protective cover according to the invention with integrated insertion aid can be used for very different balloon catheters. These may be balloon catheters with or without a stent. Particularly preferred is the use of the protective cover according to the invention in connection with coated, in particular medicament-coated balloon catheters, wherein either the balloon or (alternatively or additionally) an optionally present stent can be coated.
• a decisive advantage of the invention is that compared to separate insertion aids, as they are known from the prior art, in the case of the invention, the balloon of the balloon catheter or optionally also an existing stent wire during the introduction of the guide wire need not be touched touched , With correct handling of the balloon catheter according to the invention or the protective cover according to the invention, it is even not possible to touch the balloon or the stent during insertion / threading of the guide wire.
• the protective cover with integrated insertion aid in particular in preferred embodiments, completely covers all other components of the balloon catheter according to the invention.
• the said advantage is particularly useful in coated / drug-coated balloon catheters (with or without a stent).
• d. H In the present case, especially in the introduction of the guide wire, be avoided at all costs. Otherwise, the applied layers, in particular the applied medicament layers would be damaged and thus at least impaired, and possibly even prevented, the function of the coating.
• the handling of the insertion of the guide wire is significantly simplified for the user of the balloon catheter according to the invention.
• no separate insertion aid has to be set up first to allow insertion at all.
• the integrated insertion aid makes it possible to start immediately with the introduction of the guide wire, especially in the versions with a trough-like or channel-like depression.
• the integration of the insertion aid in the protective cover is usually easy to implement in the production of the protective cover. Accordingly, a cost saving for the user is usually associated with the use of a separate insertion aid.
• Figure 1 is a schematic representation of a protective cover according to the invention with integrated
• FIG. 2 is a schematic representation of a further protective cover according to the invention with an integrated insertion aid in a sectional view;
• FIG. 3 is a schematic representation of a protective cover according to the invention, in which the integrated insertion aid has a trough-like / channel-like depression (side view), and
• FIG. 4 shows the schematic representation of the protective cover according to the invention according to FIG. 3
• the protective cover 1 according to FIG. 1, which is not shown in all details, has an integrated insertion aid 2.
• the reference numeral 3 is assigned to the distal end of the protective sleeve 1 on the left and the reference numeral 4 to the right to the proximal end of the protective sleeve 1.
• a guide wire is inserted from the left side of the figure (distally) into the interior of the protective cover 1.
• the actual balloon catheter (with or without stent), which is not shown in Figure 1 for reasons of clarity.
• Such a balloon catheter is introduced via the proximal end 4 of the protective cover 1 into the interior of the protective cover 1. This introduction is facilitated by the provided at the proximal end 4 extension of the cross-sectional area, which is not designated in detail in Figure 1.
• the insertion aid 2 integrated into the protective cover essentially consists of a tubular section which widens in the direction of an opening 5 provided on the distal end 3 in the manner of a funnel 6.
• the tubular portion with funnel-shaped extension has in the case of the representation of Figure 1 has a circular cross-sectional area. Via the opening 5, a guide wire, not shown in FIG. 1, can be introduced into the interior of the protective cover 1.
• the funnel-shaped extension 6 ensures a facilitated introduction / threading of the guide wire into the interior of the tubular insertion aid. 2
• the insertion aid 2 is likewise widened in the manner of a funnel 7 after the narrower tubular section.
• the balloon catheter not shown in FIG. 1 (with or without a stent) is guided from the proximal end 4 of the protective sheath 1 to this funnel-shaped enlargement 7 and fixed there.
• a guide wire after passing through the funnel-shaped extension 6, the (narrower) tubular portion of the insertion aid 2, and after passing through the funnel-shaped extension 7, slides into the inner (inner lumen) of the balloon catheter and into this interior of the balloon catheter is passed further.
• an incision 8 is provided in the longitudinal direction of the protective cover 1, which cuts longitudinally through the material of the protective cover 1 (with integrated insertion aid 2).
• this incision may extend over the entire thickness of the protective sleeve material or at least over a substantial part of this material thickness.
• the material of the protective cover is completely cut through, and is (for example) mechanically held together by the material tension of the corresponding plastic material.
• a comparable solution can also be realized by perforations in the longitudinal direction instead of incomplete incision.
• a notch 9 is provided at the proximal end 4 of the protective sheath 1. This allows the user of the balloon catheter according to the invention in a simple manner to attack the protective cover and in this way remove the open or to be opened along the incision protective sheath from the catheter and / or guide wire.
• FIG. 2 shows a further embodiment of a protective cover according to the invention with integrated insertion aid is shown in a schematic sectional view.
• the essential components of the protective cover 1 1 according to FIG. 2 are denoted by the same reference numerals as in FIG. 1, for example the integrated insertion aid 2 with its funnel-shaped extensions 6 and 7.
• the distal end 3 with the there provided opening 5 and the proximal end 4 are provided with the same reference numerals. This also applies to the incision 8 and the notch 9, by means of which the protective cover 1 1 can be easily opened in the manner already described.
• the outer contour 10 of the protective cover 1 1 shown in Figure 2 may differ from the inner contour shown therein, which corresponds to the representation of Figure 1, in any way.
• Decisive in the invention is that the inner contour of the protective cover, together with the inner contour of the protective cover integrated in the insertion is designed so that an unillustrated guide wire introduced from the distal end 3 via the insertion aid into the interior of the protective cover and then further into the can be introduced in the protective sheath fixed balloon catheter.
• the insertion aid 32 of the protective sleeve 31 has a funnel-shaped enlargement 34 on its proximal end (shown on the left), which is provided for receiving the catheter, which is not shown in FIG.
• the opening 34 is followed by a tubular channel 35 which terminates in the distal opening 36 of the insertion aid 32.
• a trough-like depression 37 which is open both upwardly and distally (ie to the right in FIG. 3).
• the guide wire can be inserted either from above or (as shown in Figure 3) of the (here right) side.
• the cross-sectional area of the recess 37 is aligned with the opening 36, so that the guide wire 33 after insertion into the recess 37 in a simple manner into the opening 36 and can slide through the channel 35 in the direction of the opening 34 therethrough.
• FIG. 3 shows how the insertion aid 32 of the protective sheath 31 proximally adjacent to the recess 37 has flattened areas (flats) 38 both at the top and at the bottom, which facilitates insertion of the guide wire 33 into the insertion aid 32 for the user already described.
• Figure 4 shows the protective cover 31 with insertion aid 32 in plan view, in the state in which the guide wire 33 is already placed by means of the insertion aid 32 in the catheter.
• the guide wire 33 is inserted into the distal end 39 of the catheter through the opening 36 and the channel 35 (not designated in detail in FIG. 4) and thus placed in the catheter.
• the starting point is a balloon catheter (with or without stent), which is located inside a protective cover 1 (with integrated insertion aid 2).
• the balloon catheter is placed with its tip on the funnel-shaped extension 7 of the insertion aid 2.
• the protective cover 1 completely surrounds the balloon catheter (not shown in FIG. 1).
• a guide wire is inserted into the interior of the insertion aid 2 via the opening 5 provided at the distal end 3 of the insertion aid 2.
• the opening 5 on the insertion aid 2 either already be present or with the help of there provided means and / or with the help of a Tool (eg Stiletto) can be opened.
• a Tool eg Stiletto
• the funnel-shaped extension 6 at the distal end 3 of the insertion aid 2 and possibly the recess 37 of the insertion aid 32 facilitates insertion of the guide wire into the interior of the insertion aid.
• the guidewire After the guidewire has passed the introducer, it is (automatically) inserted / threaded into the interior (inner lumen) of the balloon catheter located within the sheath 1 and advanced inside the balloon catheter.
• the entire insertion of the guide wire is in a state in which the protective cover 1, the balloon catheter either on the sensitive components or preferably completely covers. Contact of the balloon catheter, including the coatings provided on the balloon and / or stent, is not required or even impossible.
• the protective cover 1 can be removed from the catheter. Preferably, this is done in a state in which the balloon catheter itself is pulled out beyond the proximal end 4 of the protective sheath 1 from inside the protective sheath (in the proximal direction). In this state, then the protective cover 1 is only above the guide wire.
• the guide wire itself has a smaller diameter than the balloon catheter, so that a removal of the protective cover from the guide wire is easier due to its dimensions.
• the protective cover is then opened along the incision 8 and at least partially unfolded / fanned out. This is facilitated by the notch 9 provided on the protective cover 1. Then, the protective cover 1 can be removed via the guide wire, without the balloon catheter itself being affected by this removal.

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• Health & Medical Sciences (AREA)
• Heart & Thoracic Surgery (AREA)
• Engineering & Computer Science (AREA)
• Biomedical Technology (AREA)
• Life Sciences & Earth Sciences (AREA)
• Veterinary Medicine (AREA)
• General Health & Medical Sciences (AREA)
• Vascular Medicine (AREA)
• Public Health (AREA)
• Animal Behavior & Ethology (AREA)
• Cardiology (AREA)
• Oral & Maxillofacial Surgery (AREA)
• Transplantation (AREA)
• Child & Adolescent Psychology (AREA)
• Biophysics (AREA)
• Pulmonology (AREA)
• Anesthesiology (AREA)
• Hematology (AREA)
• Media Introduction/Drainage Providing Device (AREA)

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• 2014
  • 2014-06-06 EP EP14171435.2A patent/EP2952222A1/de not_active Withdrawn
• 2015
  • 2015-06-03 JP JP2016571346A patent/JP6876438B2/ja active Active
  • 2015-06-03 WO PCT/EP2015/062415 patent/WO2015185648A1/de not_active Ceased
  • 2015-06-03 CN CN201580042197.8A patent/CN106852116B/zh active Active
  • 2015-06-03 EP EP15725078.8A patent/EP3151903B1/de active Active
  • 2015-06-03 US US15/316,384 patent/US20180147077A1/en not_active Abandoned
  • 2015-06-03 ES ES15725078T patent/ES2924986T3/es active Active

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