EP3927242A1 - Applicateur pour une colle pour tissus à deux composants - Google Patents

Applicateur pour une colle pour tissus à deux composants

Info

Publication number
EP3927242A1
EP3927242A1 EP20704059.3A EP20704059A EP3927242A1 EP 3927242 A1 EP3927242 A1 EP 3927242A1 EP 20704059 A EP20704059 A EP 20704059A EP 3927242 A1 EP3927242 A1 EP 3927242A1
Authority
EP
European Patent Office
Prior art keywords
mixing tube
cylinder
chamber
annular gap
dosing system
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Withdrawn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
EP20704059.3A
Other languages
German (de)
English (en)
Inventor
Hayley A. LOUGH
Matthew Hayes
Ralf Dorscheid
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.)
Adhesys Medical GmbH
Original Assignee
Adhesys Medical 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 Adhesys Medical GmbH filed Critical Adhesys Medical GmbH
Publication of EP3927242A1 publication Critical patent/EP3927242A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00491—Surgical glue applicators
    • 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
    • A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
    • A61L24/04—Surgical adhesives or cements; Adhesives for colostomy devices containing macromolecular materials
    • A61L24/046—Surgical adhesives or cements; Adhesives for colostomy devices containing macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00491—Surgical glue applicators
    • A61B2017/00495—Surgical glue applicators for two-component glue
    • 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
    • A61L2430/00—Materials or treatment for tissue regeneration
    • A61L2430/34—Materials or treatment for tissue regeneration for soft tissue reconstruction

Definitions

  • the present invention relates to a dosing system with at least two chambers for a tissue adhesive system comprising at least two components.
  • the invention also relates to a kit comprising a dosing system which is filled with a tissue adhesive system comprising at least two components, and a method for closing a wound with the aid of such a kit.
  • EP 2 173 782 B1 discloses a 2-chamber metering system which is filled with a 2K tissue adhesive system, one component of which is an isocyanate-functional prepolymer made from a polyisocyanate and a polyol and the second component is an amino-functional aspartic ester .
  • Such 2-chamber dosing systems are usually designed as medical syringes with two cylinders arranged parallel to one another, which are pressed out synchronously, the two components being brought together in a line at the exit of the syringe and being applied to the desired location via an applicator equipped with a static mixer can.
  • the object of the present invention was therefore to provide a dosing system with at least two chambers for a tissue adhesive system comprising at least two components, which can also be operated by non-medically trained people, preferably with one hand, so that, for example, injuries to one's own arm or your own hand can also be treated.
  • the metering system should be mechanically more stable than the previously known syringe-like 2-chamber metering systems.
  • a dosing system with at least two chambers for a tissue adhesive system comprising at least two components, which is characterized in that the first chamber is designed as a hollow cylinder, which is closed at one end and open at its opposite end and the second chamber is designed as an annular gap in a solid cylinder and the annular gap extends from an end face facing the hollow cylinder to a mixing chamber arranged at the opposite end of the solid cylinder and the hollow cylinder is arranged on the side of its open end face in the annular gap of the solid cylinder so as to be displaceable in the longitudinal direction is, wherein at least one feed channel is formed in the solid cylinder, which extends inside the annular gap from the end face of the solid cylinder facing the hollow cylinder into the mixing chamber, a mixing tube being provided in the mixing chamber which protrudes laterally from the solid cylinder and essentially transversely for the longitudinal extension of the Vollzy cylinder is arranged displaceably and which in a first position closes the interior of the mixing tube with respect to
  • the invention is based on the knowledge that due to the displaceable arrangement and design of the chambers, the metering system can be designed to be significantly more compact than the previously known syringe-like 2-chamber metering systems.
  • the dosing system can, for example, have a rectangular geometry that is significantly more rigid than a filled 2-chamber syringe. This also makes it possible to make the dispensing system more ergonomic by hand so that it can be squeezed together in one hand even by people with little or no experience of handling it, and the 2K tissue adhesive system can be squeezed out in this way.
  • the dosing system according to the invention is preferably designed with two chambers for a tissue adhesive system comprising two components.
  • the metering system has, inter alia, a hollow cylinder and a full cylinder.
  • a cylinder is not only a simple circular cylinder but also a cylinder with an oval, (poly) angular, such as square, hexagonal or prismic cross-sectional area, ellipsoidal or trapezoidal cross-sectional area.
  • the hollow cylinder and the solid cylinder are matched to one another in such a way that they can be shifted into one another.
  • the longitudinal extent of the hollow cylinder is preferably selected such that the height of the inner wall is largely identical to the depth of the
  • the solid cylinder can be constructed monolithically or from a solid material, or else it can have cavities to save material, but which are not used for filling with components of the 2K tissue adhesive system.
  • the solid cylinder is preferably made up of two elements, which facilitates the assembly with the hollow cylinder.
  • the first element essentially accommodates the annular gap while the second element can be pushed over the hollow cylinder and, for example, can be firmly connected to the first element via a latching connection, so that the hollow and solid cylinders form a unit.
  • the solid cylinder can have closed cavities in the interior with respect to the adhesive components in order to save material. These cavities are therefore not filled with adhesive components when the annular gap of the solid cylinder is filled.
  • the hollow cylinder and the solid cylinder are preferably made of a rigid material, in particular a plastic material whose polymer matrix is preferably selected from polyolefins, preferably polyethylene and polypropylene, ABS plastic, polycarbonate, polyester, preferably polyethylene terephthalate, polymethyl (meth) acrylate, polyvinyl chloride, (2K) epoxy resins, polystyrene and mixtures and copolymers of these.
  • the manufacture of the hollow cylinder and the solid cylinder can be carried out using any of the methods known to those skilled in the art for shaping the above-mentioned materials, such as injection molding, for example.
  • a stop device can be formed in the area of the joint edge of the open end face of the hollow cylinder, which interacts with a corresponding stop device formed on the end face of the solid cylinder facing the hollow cylinder in such a way that the hollow cylinder and the solid cylinder only up to the counter lateral contact of the anchorage devices can be pulled apart. This ensures that when the dosing system is filled, the chambers are only filled until the stop is reached. In addition, the stop device prevents the dosing system from being unintentionally pulled apart.
  • the hollow cylinder and the solid cylinder can also be provided with a safety device that secures the hollow cylinder and the solid cylinder against accidentally pushing against each other.
  • a plastic nose can be provided on one of the two cylinders, which corresponds to a corresponding recess on the other cylinder and which breaks off due to increased force when used, thus releasing the cylinders so that they can be moved against each other.
  • the stop device on the hollow cylinder is formed as a circumferential annular bead which cooperates with a stop surface on the inside of the solid cylinder as a corresponding stop device.
  • a circumferential sealing element can also be provided on the annular bead, which sealing element cooperates in a sealing manner with at least one, preferably with both, of the longitudinal surfaces of the annular gap.
  • the volumes of the two chambers can be freely selected over a wide range and are expediently matched to one another so that they have the same ratio as that in which the components of the two-component tissue adhesive system must be mixed with one another.
  • the volume ratio of the chambers is preferably 1:10 to 10: 1, preferably 5: 1 to 1: 5.
  • the volume of the first chamber is greater than that of the second chamber, the volume of the first chamber and the volume of the second chamber being in a ratio of 5: 1 to 3: 1, preferably 4.5: 1 to 3.5: 1.
  • the hollow cylinder and the solid cylinder can have a circular, oval, (poly) angular, ellipsoidal or trapezoidal cross-sectional area, in particular a rectangular cross-sectional area with rounded edges, the ratio of the long to the short side preferably at least 3: 1, more preferably is at least 4: 1.
  • the hollow cylinder and / or the solid cylinder can be provided on the outside with a profile running in the longitudinal direction, in particular a corrugation.
  • mixing elements are arranged within the mixing tube, the mixing tube being designed in particular as a static mixer. This ensures that the reactants of the 2K or multi-component tissue adhesive system are sufficiently mixed until they leave the mixing tube.
  • a latching device can also be provided on the mixing tube which fixes the mixing tube in the first position against unintentional pulling out of the mixing tube.
  • a reset lock can be provided on the mixing tube, which is designed in such a way that it fixes the mixing tube after it has been moved into the second position and prevents it from being pushed back, the reset lock preferably being designed as a latching element, for example (wings or barbs).
  • the wing can for example consist of a mechanically pretensioned plastic film section which, after pulling out the mixing tube, is turned off by its preload from the mixing tube and thereby blocks it from being pushed back.
  • the mixing tube can also be provided with a removable closure on its side protruding from the full cylinder.
  • the mixing tube is guided in the mixing chamber so that it cannot rotate and is provided with one or more openings at its inwardly facing end on the side facing the feed channel through which the feed channel and / or the annular gap connected to the interior of the mixing tube who can when the mixing tube is brought into the second position.
  • a guide nose or a guide spring can be provided in the mixing chamber, which corresponds to a corresponding guide groove on the mixing tube. The reverse arrangement of the guide nose or guide spring and guide groove are also possible.
  • the mixing chamber is formed within the full cylinder. This is advantageous because in this way no additional component is required, which simplifies the manufacturing process and also reduces the risk of leaks.
  • the mixing chamber is primarily used to receive and guide the mixing tube, whereas the actual mixing of the components takes place inside the mixing tube.
  • annular gap seal is provided in the mixing chamber between the confluence of the annular gap and the outer opening of the mixing chamber, which is used to seal between the mixing chamber and the outer surface of the mixing tube in position 1 and position 2. In this way it can be prevented that the contents of the chambers can get past the mixing tube to the outside.
  • additional annular gap seals can be provided further inside, for example one between the passage of the annular gap and the feed channel in order to prevent unintentional mixing of the at least two components outside the mixing tube in the mixing chamber.
  • Another annular gap seal can be arranged on the side of the supply channel facing away from the passage of the annular gap. In this way, leakage of the component contained in the hollow cylinder into the mixing chamber can be prevented.
  • the feed channel expediently runs essentially parallel to the annular gap and is in particular at least 2 mm away from it, preferably at least 3 mm.
  • the hollow cylinder and solid cylinder can be enclosed together in a bag, the bag preferably being provided with a weakening line in the area of the protruding mixing tube, which allows the bag to be opened in a targeted manner on the mixing tube .
  • the bag is essentially characterized in that it consists of a material or a material composition which is light-tight and / or impermeable to moisture and also resistant to aging and ensures a long-term sterile barrier.
  • the bag can for example consist of a composite film, such as an aluminum foil, which is laminated on one or both sides with a polymer film, for example with a polyester film (PET) and / or a Polyethylene (PE) film.
  • PET polyester film
  • PE Polyethylene
  • the bag can also be vacuum-sealed or filled with an inert protective gas, such as nitrogen.
  • Another object of the present invention relates to a kit comprising a dosing system according to the invention and a tissue adhesive system located therein comprising two components, and optionally a method manual for closing a wound using the kit, the tissue adhesive system preferably having at least one aspartic acid ester as hardener with optionally at least comprises a filler as the first component and an isocyanate-functional prepolymer as the second component, the first component being particularly preferably located in the first chamber and the second component preferably in the second chamber of the dosing system.
  • the two-component tissue adhesive systems used are particularly preferably those as described in EP 2 173 782 B1, EP 2 182 018 B1, WO 201 1/006606 A1, WO 2010/006714 A2, A3, EP 2 699 615 B1, WO 2013/104563 A1, WO 2012/107375 A1, WO 2013/092506 A1, EP 2 699 614 B1 or WO 2013/092504 A1 are disclosed.
  • the present invention further relates to a method for closing a wound with the aid of a kit according to the invention comprising the steps: a) pulling out the mixing tube until the second position is reached; b) exertion of pressure on the hollow cylinder and the solid cylinder relative to each other in the longitudinal direction of the cylinder, whereby the two components of the tissue adhesive system are conveyed in the direction of the mixing chamber and mixed together as they flow through the mixing tube; c) Optional discarding of the at least first 10 mm exiting from the mixing tube tissue adhesive; d) application of the tissue adhesive emerging from the mixing tube with continued application of pressure to the wound; e) Allowing the tissue adhesive to harden.
  • the invention relates in particular to the following embodiments: 1.
  • Dosing system 1 with at least two chambers 2, 3 for a tissue adhesive system comprising at least two components, characterized in that the first chamber 2 is designed as a hollow cylinder H, which is closed at one end 2a and open at its opposite end 2b is and
  • the second chamber 3 is formed in a solid cylinder V as an annular gap 4 and the annular gap 4 extends from an end face 3a facing the hollow cylinder H to a mixing chamber 5 arranged at the opposite end 3b of the solid cylinder V and the hollow cylinder H on its side open end face 2b is arranged displaceably in the longitudinal direction L in the annular gap 4 of the solid cylinder V,
  • the hollow cylinder H and the solid cylinder V are made of a rigid material, in particular a plastic material whose polymer matrix is preferably selected from polyolefins, preferably polyethylene and polypropylene, ABS plastic, polycarbonate, polyester , preferably polyethylene terephthalate, polymethyl methacrylate, polyvinyl chloride, epoxy resins, polystyrene and mixtures and copolymers of these.
  • a plastic material whose polymer matrix is preferably selected from polyolefins, preferably polyethylene and polypropylene, ABS plastic, polycarbonate, polyester , preferably polyethylene terephthalate, polymethyl methacrylate, polyvinyl chloride, epoxy resins, polystyrene and mixtures and copolymers of these.
  • a stop device 8 is madebil det, which is formed with a corresponding stop device 9 formed on the end face 3a of the solid cylinder V facing the hollow cylinder H in cooperates in such a way that the hollow cylinder H and the solid cylinder V can only be pulled apart until the stop devices 8, 9 make contact.
  • a circumferential sealing element 11 is provided on the annular bead, which sealing element cooperates with at least one, preferably with both, of the longitudinal surfaces of the annular gap 4.
  • Dosing system characterized in that the dosing system has two chambers 2, 3 and the volumes of the two chambers 2, 3 are in a ratio of 1:10 to 10: 1, preferably 5: 1 to 1: 5.
  • volume of the first chamber 2 to the volume of the second chamber 3 is in a ratio of 5: 1 to 3: 1, preferably 4.5: 1 to 3.5: 1.
  • the hollow cylinder H and the solid cylinder V have a circular, oval, polygonal, ellipsoidal, trapezoidal cross-sectional area, in particular a rectangular cross-sectional area with rounded edges, the ratio of the long to short side is preferably at least 3: 1, more preferably at least 4: 1.
  • Dosing system according to one of the preceding embodiments characterized in that the hollow cylinder H and / or the solid cylinder V is provided on the outside with a longitudinally extending profile 12, in particular a corrugation.
  • Dosing system according to one of the preceding embodiments characterized in that 7 mixing elements are arranged within the mixing tube, the mixing tube 7 being designed in particular as a static mixer.
  • a locking device 12 is provided on the mixing tube 7, which fixes the mixing tube 7 in the first position to prevent the mixing tube 7 from being pulled out unintentionally.
  • a reset lock 13 is provided on the mixing tube 7, which is designed such that it fixes the mixing tube 7 after it has been moved into the second position and prevents it from being pushed back, the reset lock 13 is preferably designed as a locking element, in particular as a wing or barbed hook.
  • Dosing system characterized in that the mixing tube 7 is guided in the mixing chamber 5 so that it cannot rotate and is provided at its inwardly white end on the side facing the feed channel with one or more openings 14, 15 through which the feed channel 6 and / or the annular gap 4 can be connected to the inner Ren of the mixing tube 7 when the mixing tube 7 is placed in the second position.
  • Dosing system according to one of the preceding embodiments characterized in that the feed channel 6 runs essentially parallel to the annular gap 4 and is in particular at least 2 mm away from it, preferably at least 3 mm.
  • Dosing system according to one of the preceding embodiments characterized in that the hollow cylinder H and solid cylinder V are enclosed together in a bag 21, the bag 21 preferably being provided with a weakening line in the region of the protruding mixing tube 7, which enables the bag to be opened in a targeted manner 19 allowed on the mixing tube 7.
  • a method for closing a wound using a kit according to embodiment 21 comprising the steps: a) pulling out the mixing tube 7 until the second position is reached; b) exertion of pressure on the hollow cylinder H and the solid cylinder V relative to each other in the longitudinal direction of the cylinder H, V, whereby the two components of the tissue adhesive system are promoted in the direction of the mixing chamber 5 and mixed together as they flow through the mixing tube 7; c) Optional discarding of the at least first 10 mm from the mixing tube 7 ausre border tissue adhesive; d) application of the tissue adhesive emerging from the mixing tube 7 with further exertion of pressure to the wound; e) Allowing the tissue adhesive to harden.
  • FIG. 1 An embodiment of a device according to the invention in lateral
  • FIG. 2a Figs. 2a) and b) detailed views of the first chamber of the device from FIG. 1 obliquely from above,
  • FIG. 4 shows a sectional view of the device from FIG. 1 obliquely from above
  • FIG. 5a) and b) detailed views of the mixing tube of the device from FIG. 1 in a side plan view and a side sectional view, as well as Figs. 6a) and b) show an embodiment of a kit according to the invention before and after opening.
  • a metering system 1 according to the invention is shown in a side plan view.
  • the dosing system 1 consists of two longitudinally oval chambers 2, 3 for a two-component tissue adhesive system, for example one based on isocyanate-functional prepolymers based on aliphatic polyisocyanates and amino-functional aspartic acid esters as one component and a polyol as the second component.
  • the hollow cylinder H and the full cylinder V are made of a rigid material, in the present case of polypropylene.
  • the first chamber 2 is designed as a hollow cylinder H, which is closed on one end face 2a and open on its opposite end face 2b, whereby a cavity is formed for receiving a component of the tissue adhesive system.
  • the first chamber 2 is shown again separately in FIGS. 2a) and b).
  • the second chamber 3 is designed as an oval annular gap 4 in a solid cylinder V.
  • the second component of the tissue adhesive system can be poured into the ring gap 4.
  • the annular gap 4 extends from an end face 3a facing the hollow cylinder H to a mixing chamber 5 formed in the opposite end 3b of the solid cylinder V, the hollow cylinder H on the side of its open end face 2b in the annular gap 4 of the solid cylinder V in Is arranged displaceably in the longitudinal direction L.
  • a mixing tube 7 is provided, which in the present case is designed as a static mixer.
  • the mixing tube 7 protrudes laterally from the solid cylinder V and is arranged to be displaceable essentially transversely to the longitudinal extent of the solid cylinder V.
  • the volumes of the two chambers 2, 3 can be adapted accordingly to the mixing ratio of the adhesive system, the ratio of the first chamber 2 to the second chamber 3 in the present case being approximately 3: 1.
  • the second chamber 3 is made up of two elements 10a, 10b, which can be connected to one another in a fixed and gas-tight manner by means of a latching device after joining in the direction indicated by the dashed arrows.
  • a latching device for the purpose of sealing between the two elements 10a, 10b, one of these is equipped with a seal around it.
  • the division of the second chamber 3 into the two elements 10a, 10b serves the purpose of simpler filling of the chambers 2, 3 with the components of the tissue adhesive system. So can First the first chamber 2 is filled with one component of the tissue adhesive system and assembled with the element 10a carrying the annular gap 4 in such a way that the circumferential edge bead of the first chamber 2 is inserted into the annular gap 4. Then the oval ring-shaped second element 10b is slipped over the first chamber 2 and connected to the element 10a via the locking device described above, whereby the first chamber 2 is clamped at the same time so that it can no longer be released. Then the annular gap 4 of the second chamber 3 is filled with the other component of the tissue adhesive system. This is expediently done before inserting the mixing tube 7 through the opening of the second chamber 3 provided for the mixing tube 7. Alternatively, the bottom area of the chamber 3 below the mixing chamber 5 can be made removable, which facilitates the filling into the annular gap 4.
  • the underside of the circumferential annular bead of the first chamber 2 serves as a cylinder surface and the upper side of the annular bead in interaction with the circumferential lower edge as corresponding stop devices 8, 9 of the hollow cylinder H and the solid cylinder V, so that the hollow cylinder H and the solid cylinder V can only be pulled apart until mutual contact of the stop devices 8, 9. This prevents unintentional opening of the metering system 1.
  • the longitudinal extent of the hollow cylinder H is selected such that the height of the inner wall is largely identical to the depth of the annular gap 4. This can be seen in particular from the sectional illustration in FIG. 4.
  • At least one feed channel 6 is formed in the solid cylinder V and extends on the inside of the annular gap 4 from the end face 3a of the solid cylinder V facing the hollow cylinder H into the mixing chamber 5.
  • tissue adhesive component is conveyed in the direction of the mixing chamber 5 as soon as the chambers 2, 3 are pushed into one another by compressing the dosing system 1. So that no adhesive component can escape at the interfaces between the first and second chambers 2, 3, a circumferential sealing element 10 is provided on the outside of the annular bead, which cooperates sealingly with both of the longitudinal surfaces of the annular gap 4.
  • the mixing tube 7 closes the inside of the mixing tube 7 in a first position opposite the feed channel 6 and the annular gap 4 only releases these openings in a second position, the second position being the fully extended mixing tube 7 is defined.
  • the mixing tube 7 has two openings 14, 15 at its inwardly pointing end on the side facing the supply channel, through which the supply channel 6 and the annular gap 4 can be connected to the interior of the mixing tube 7 when the mixing tube 7 is in the second position is brought. So that the openings 14, 15 also remain in the correct position when the mixing tube 7 is pulled out, the mixing tube 7 is guided in the mixing chamber 5 so that it cannot rotate.
  • the mixing tube 7 has a reset lock 13 which is designed in such a way that it fixes the mixing tube 7 after it has been moved into the second position and prevents it from being pushed back, the reset lock 13 being a latching element in the present case is designed in the form of a barb, which turns off after pulling out the mixing tube 7 from this.
  • a locking device 12 is also embedded in the form of an annular groove, which secures the mixing tube 7 in the inserted state against accidental slipping out with a corresponding pin at the outlet of the mixing chamber 5.
  • annular gap seals 17, 18, 19 are provided between the confluence of the annular gap 4 and the outer opening of the mixing chamber 5.
  • the outer annular gap seal 17 serves to seal between the mixing chamber 5 and the outer surface of the mixing tube 7 in position 1 and position 2.
  • the middle annular gap seal 18 is arranged between the passage of the annular gap 4 and the feed channel 6 to prevent unintentional mixing of the two adhesive- To prevent components outside the mixing tube 7 in the mixing chamber 5.
  • the inner annular gap seal 19 is arranged on the side of the feed channel 6 facing away from the passage of the annular gap 4. The annular gap seal 19 can prevent the component contained in the hollow cylinder 2 from leaking into the mixing chamber 5.
  • FIGS. 6a) and b) is a kit 20 according to the invention from a metering system 1, as shown in FIGS. 1 to 5 shown.
  • the hollow cylinder H and the solid cylinder V are provided on their respective outside conditions with a longitudinally extending profile 11 in the form of a corrugation, which increase the grip and also the stability.
  • the two components of a polyurethane-urea-tissue adhesive system are filled in the chambers 2, 3.
  • the isocyanate-functional prepolymer based on aliphatic polyisocyanates and amino-functional aspartic acid esters is filled into the annular gap 4 of the second chamber 3 and the polyol into the first chamber 2.
  • the 2K tissue adhesive systems used are those as described in EP 2 173 782 B1, EP 2 182 018 B1, WO 2011/006606 A1, WO 2010/006714 A2, A3, EP 2 699 615 B1, WO 2013 / 104563 A1, WO 2012/107375 A1, WO 2013/092506 A1, EP 2 699 614 B1 or WO 2013/092504 A1 are disclosed.
  • the dosing system 1 is welded into a foil bag 21 made of aluminiumbe vaporized PET foil and the outer end of the mixing tube 7 is provided with a removable closure 16.
  • the removable closure 16 also serves to pull the mixing tube 7 out of the mixing chamber 5 during use.
  • the film bag 21 is hen in the area of the protruding mixing tube 7 with a line of weakness verses, which allows a targeted opening of the film bag 21 on the mixing tube 7.
  • the entire film bag 21 does not have to be removed; it is rather sufficient to open it in the area of the closure 16.
  • the first chamber 2 is first filled with one component of the tissue adhesive system under a dry protective gas atmosphere and with the element 10a supporting the annular gap 4 in the It is assembled in such a way that the circumferential bead of the first chamber 2 is introduced into the annular gap 4. Then the oval ring-shaped second element 10b is slipped over the first chamber 2 and connected to the element 10a via the latching device described above, whereby at the same time the first chamber 2 is jammed so that it can no longer come loose. Then the annular gap 4 of the second chamber 3 is filled with the other component of the tissue adhesive system. This is expediently done before the introduction of the mixing tube 7 through the opening of the second chamber 3 provided for the mixing tube 7.
  • the bottom area of the chamber 3 below the mixing chamber 5 can be made removable, which facilitates the filling into the annular gap 4.
  • the mixing tube 7 is inserted into the filled metering system 1 up to the locking device 12 and welded into a foil bag 21 vaporized on the inside with aluminum under dry protective gas.
  • the foil bag 21 is torn open at the weakening line by pulling on the stopper 16, the mixing tube 7 is pulled out until the end position is reached and the stopper is pulled by a slight tilting movement 16 then deducted.
  • This can also be done with the help of the teeth, for example, if the injury to the arm does not allow two-handed use.
  • the dosing system is then squeezed together with one hand so that the first and second chambers 2, 3 are pushed into one another, whereby both components are conveyed into the mixing tube 7, mixed there and discharged at the opening of the mixing tube 7.
  • the first 2 cm of the mixture can be discarded.
  • the following strand of adhesive mixture is then immediately applied to the bleeding Wound applied where the wound adhesive, accelerated by the moisture contact with the wound, hardens within 30 seconds to 3 minutes, depending on the adhesive system, thus stopping the bleeding.

Abstract

La présente invention concerne un système de dosage (1) comprenant au moins deux chambres (2, 3) pour un système de colle pour tissus comprenant au moins deux composants. Une première chambre (2) est conçue sous la forme d'un cylindre creux (H), qui est fermé à une face frontale (2a) et ouvert à sa face frontale (2b) opposée. Une deuxième chambre (3) est conçue dans un cylindre plein (V) sous la forme d'une fente annulaire (4), qui s'étend d'une face frontale (3a) faisant face au cylindre creux (H) jusqu'à une chambre de mélange (5) disposée à l'extremite (3b) opposée du cylindre plein (V). Dans le cylindre plein (V) est ménagé un canal d'alimentation (6) qui s'étend sur le côté intérieur de la fente annulaire (4) depuis la face frontale (3a) du cylindre plein (V) faisant face au cylindre creux (H) jusqu'à la chambre de mélange (5), un tube de mélange (7) faisant saillie latéralement de la chambre de mélange (5), lequel est monté mobile perpendiculairement à l'extension longitudinale du cylindre plein (V).
EP20704059.3A 2019-02-20 2020-02-17 Applicateur pour une colle pour tissus à deux composants Withdrawn EP3927242A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19158345.9A EP3698723A1 (fr) 2019-02-20 2019-02-20 Applicateur pour un adhésif tissulaire à deux composants
PCT/EP2020/054083 WO2020169522A1 (fr) 2019-02-20 2020-02-17 Applicateur pour une colle pour tissus à deux composants

Publications (1)

Publication Number Publication Date
EP3927242A1 true EP3927242A1 (fr) 2021-12-29

Family

ID=65529420

Family Applications (2)

Application Number Title Priority Date Filing Date
EP19158345.9A Withdrawn EP3698723A1 (fr) 2019-02-20 2019-02-20 Applicateur pour un adhésif tissulaire à deux composants
EP20704059.3A Withdrawn EP3927242A1 (fr) 2019-02-20 2020-02-17 Applicateur pour une colle pour tissus à deux composants

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US (1) US20220142630A1 (fr)
EP (2) EP3698723A1 (fr)
JP (1) JP2022521403A (fr)
CN (1) CN113543724A (fr)
WO (1) WO2020169522A1 (fr)

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE548210A (fr) * 1955-01-14
US5298023A (en) * 1991-03-08 1994-03-29 Habley Medical Technology Corporation Multiple pharmaceutical dispenser with accumulator
DE29920664U1 (de) * 1999-11-25 2000-01-20 Centeon Pharma Gmbh Sterilhülle für eine Injektionsspritze
EP2011808A1 (fr) 2007-07-03 2009-01-07 Bayer MaterialScience AG Colle médicale pour la chirurgie
JP2010535590A (ja) * 2007-08-06 2010-11-25 ノードソン コーポレーション ２流体小出し装置
EP2145634A1 (fr) 2008-07-17 2010-01-20 Bayer MaterialScience AG Colles médicales destinées à arrêter des saignements graves et à étanchéifier des fuites
EP2275466A1 (fr) 2009-07-16 2011-01-19 Bayer MaterialScience AG Adhésif tissulaire à base de polyurée
EP2673310B1 (fr) 2011-02-09 2014-11-19 Medical Adhesive Revolution GmbH Adhésif tissulaire à base d'aspartates modifiés par azote
ES2544935T3 (es) 2011-04-19 2015-09-07 Medical Adhesive Revolution Gmbh Adhesivo médico para detener hemorragias
DK2699614T3 (en) 2011-04-19 2015-04-27 Medical Adhesive Revolution Gmbh Tissue adhesive with accelerated hardening
CN108570140A (zh) 2011-12-20 2018-09-25 阿德希西斯医疗有限公司 用于生物可降解组织粘合剂的异氰酸酯官能的预聚物
JP5873931B2 (ja) 2011-12-20 2016-03-01 メディカル・アドヒーシブ・レボリューション・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツングＭｅｄｉｃａｌ Ａｄｈｅｓｉｖｅ Ｒｅｖｏｌｕｔｉｏｎ ＧｍｂＨ ヒドロキシアミノポリマーおよびポリ尿素／ポリウレタン組織接着剤におけるその使用
US20140357828A1 (en) 2012-01-09 2014-12-04 Medical Adhesive Revolution Gmbh Modified beta-amino acid ester (asparate) curing agents and the use thereof in polyurea tissue adhesives

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CN113543724A (zh) 2021-10-22
JP2022521403A (ja) 2022-04-07
EP3698723A1 (fr) 2020-08-26
US20220142630A1 (en) 2022-05-12
WO2020169522A1 (fr) 2020-08-27

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