EP3265026A1 - Endoprothèse et cathéter perfectionnés - Google Patents
Endoprothèse et cathéter perfectionnésInfo
- Publication number
- EP3265026A1 EP3265026A1 EP16709330.1A EP16709330A EP3265026A1 EP 3265026 A1 EP3265026 A1 EP 3265026A1 EP 16709330 A EP16709330 A EP 16709330A EP 3265026 A1 EP3265026 A1 EP 3265026A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tubular
- tubular body
- stent
- endoprosthesis
- branches
- 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.)
- Pending
Links
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
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
- A61F2/07—Stent-grafts
-
- 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
- A61F2/82—Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/856—Single tubular stent with a side portal passage
-
- 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
- A61F2/954—Instruments specially adapted for placement or removal of stents or stent-grafts for placing stents or stent-grafts in a bifurcation
-
- 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
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
- A61F2002/061—Blood vessels provided with means for allowing access to secondary lumens
-
- 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
- A61F2210/00—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2210/0076—Particular material properties of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof multilayered, e.g. laminated structures
Definitions
- the present invention relates to an improved stent and catheter. More particularly, the invention relates to a device, called a "stent", mesh and tubular, adapted to be slipped by means of a catheter into a natural human cavity (or animal) to expand and / or maintain open .
- EP2077803 discloses a stent with a lateral opening to be positioned opposite a bifurcation of blood vessel.
- this lateral opening is not adapted to receive without degrading a surgical-type instrument, nor detectable by radiography.
- such a stent allows the flow of fluid through its opening, which can be particularly dangerous if it leaves the location for which it was intended.
- the present invention proposes a self-expanding stent comprising a tubular body, said tubular body comprising
- said shutter member being arranged in the polymer layer.
- a surgeon can introduce a surgical instrument through the lateral opening and thus achieve at least one agglomeration puncture and / or cleaning of the inner wall of the stent.
- the self-expandability of the stent according to the invention allows it to adapt to different arterial diameters.
- the stent according to the invention allows endovascular treatment of a contralateral femoral artery or, via said common femoral artery, another artery such as a coronary artery, a digestive artery, the aorta or a subenguinal artery, whether by retrograde or anterograde puncture.
- the closure element comprises an orifice adapted to allow penetration into the tubular body.
- the polymer layer is internal and the alloy layer is external
- the polymer is expanded polytetrafluoroethylene and the alloy is nitinol.
- Nitinol is understood to mean an alloy of nickel and titanium, in which these two elements are present in approximately equal percentages.
- At least one radio-opaque marker is arranged at the periphery of the lateral opening.
- the location of the lateral opening can be identified by radiography and the surgeon can minimize the size of the incision needed to reach it.
- the lateral openings are staggered along the tubular body. Thanks to these provisions, despite the multiplicity of lateral openings, the stent has sufficient mechanical strength to keep open the natural cavity in which it is installed.
- each tubular branch comprises
- the location and orientation of the stent can be identified by radiography and, therefore, the surgeon can manipulate said stent with precision.
- one end of the tubular body emerges on two tubular branches each having an open end,
- the polymer layer of said tubular body and of said tubular branches is one-piece
- the alloy layer of said tubular body and said tubular branches is monobloc.
- the stent is adapted to be disposed at a natural cavity bifurcation.
- At least one radio-opaque marker is arranged at the open end of each tubular branch.
- the section of the branches and of the tubular body is circular
- the section of the tubular body has a diameter of between 7 mm and 11 mm and the length of said tubular body is between 30 and 40 mm,
- the section of one of the two tubular branches has a diameter of between 3 mm and 5 mm and the length of said small branch is between 10 mm and 15 mm
- - The section of the other of the two tabular branches, said large branch has a diameter between 5mm and 6mm and the length of said large branch is of the order of 20mm.
- the subject of the invention is also a catheter comprising a tubular body, in which
- said tabular body comprises at least four channels extending within it, and two ends each extending by two tabular branches whose end is open,
- each tabular branch of one end of the catheter comprises a bifurcation ending in a delivery device
- two of said channels each comprise a so-called guide wire coming out of said open ends
- the other two channels each comprise a so-called drop wire, one end of which is connected to the release device.
- the invention also relates to an assembly comprising such a stent and such a catheter, wherein the other end of the release son is bonded to said stent.
- the invention finally relates to the use of such an assembly.
- Figure 2 is an oblique perspective view of a second example of an improved stent according to the invention.
- FIG. 3 is a profile overview of an exemplary assembly comprising an improved stent and catheter according to the invention.
- Figure 1 shows a first embodiment of a self-expanding stent, called stent 10, according to the invention.
- the stent 10 comprises a tubular body 20 which has two open ends 11 and 12.
- the section of the tube formed by the body 20 is circular. In variants, this section is of another form, for example any.
- the section of the tubular body 20 has a diameter of between seven millimeters and eleven millimeters and its length is between thirty and forty millimeters.
- the stent 10 includes a polymer layer and an alloy layer.
- the polymer layer is internal and the alloy layer is external.
- the polymer layer is external and the alloy layer is internal.
- the polymer is expanded polytetrafluoroethylene and the alloy is nitinol.
- a lateral opening 15 called puncture is provided on the stent 10, around the middle of the tubular body 20.
- the stent according to the invention comprises several lateral openings, in which case they are staggered along the tubular body so as to maintain sufficient mechanical strength so that the stent keeps the natural cavity open within the body. which it is installed.
- the stent 10 comprises a partial closure element 19 of the opening 15.
- This closure is partial because the closure member 19 has an orifice 59 adapted to allow penetration of an instrument / tool of Surgical type in the tubular body 20.
- such an orifice is not arranged in the closure element because ePTFE has elasticity and resistance properties that allow it to be pierced several times without to tear or deteriorate.
- the lateral opening is provided in the alloy layer, at a predetermined distance 13, 14 from each of the ends 11, 12, respectively, of the tubular body 20.
- each distance 13, 14 is greater than a maximum dimension of the lateral opening 15.
- the contour of the lateral opening 15 being substantially circular, the maximum dimension of said opening is its diameter.
- the closure member 19 is arranged in the polymer layer which has an elasticity conducive to the introduction of a surgical instrument through the orifice 59.
- the contour of the opening 15 can be identified by radiography when the stent 10 is placed in a natural cavity. human.
- the use of at least one image intensifier makes it possible to increase the accuracy of the radioscopic images representing the stent according to the invention.
- radio-opaque markers 21 - 22 and 23 - 24 are arranged at each emergent end 11, 12 respectively of the tubular body 20.
- the bulk of the stent 10 can be visualized by radiography when it is arranged. in a natural human cavity.
- the number and nature of the markers are different, but they have the same function.
- Figure 2 shows a second embodiment of a self-expanding stent, called stent 30, according to the invention.
- the stent 30 comprises a tubular body 40 which has two open ends.
- the section of the tube formed by the tubular body 40 is circular. In variants, this section is of another form, for example any.
- the section of the tubular body 40 has a diameter of between seven millimeters and eleven millimeters and its length 44, shown in Figure 3, is between thirty and forty millimeters.
- the stent 30 includes a polymer layer and an alloy layer.
- the polymer layer is internal and the alloy layer is external.
- the polymer layer is external and the alloy layer is internal.
- the polymer is expanded polytetrafluoroethylene and the alloy is nitinol.
- a lateral opening 45 called puncture is provided on the stent 30, around the middle of the tubular body 40.
- the stent according to the invention comprises several lateral openings, in which case they are staggered along the tubular body so as to maintain sufficient mechanical strength so that the stent keeps the natural cavity open within the body. which it is installed.
- the stent 30 includes a partial closure element 49 of the opening 45.
- This closure is partial because the closure element 49 has an orifice 69 adapted to allow penetration of a surgical instrument in the tubular body 40.
- the lateral opening is arranged in the alloy layer, at a predefined distance from each end of the tubular body 40, preferably greater than a maximum dimension of the lateral opening 45.
- the mechanical strength previously described is ensured.
- the contour of the lateral opening 45 being substantially circular, the maximum dimension of said opening is its diameter.
- the closure element 49 is formed in the polymer layer which has an elasticity conducive to the introduction of a surgical instrument through the orifice 69.
- three radiopaque markers 46, 47 and 48 are arranged at the periphery of the lateral opening 45.
- the contour of the opening 45 can be surrounded by radiography when the stent 30 is placed in a natural cavity. human.
- two radio-opaque markers 41 and 42 are arranged at one of the two open ends of the tubular body 30.
- the other end of the tubular body 40 opens on two tubular branches 50 and 60 each having a tip end.
- a marker 43 is disposed at the end of the tubular body 40 opening on two tubular branches 50 and 60 between said branches.
- Each tabular branch 50, 60 has at least one radiopaque marker 51, 52, 61, 62 at its open end.
- the bulk of the stent 30 can be estimated by X-ray when it is disposed in a natural human cavity.
- the number and nature of the markers are different, but they have the same function.
- each tabular branch 50, 60 has at least one polymer layer and one alloy layer.
- the polymer layer of the tabular body 40 and the tabular branches 50 and 60 of the stent 30 is in one piece.
- the alloy layer of the tabular body 40 and the tabular branches 50 and 60 of the stent 30 is in one piece.
- the section of the branches 50 and 60 is circular.
- the section of one of the two tabular branches 50 and 60, said small branch 60 has a diameter of between three and five millimeters and the length 63, shown in Figure 3, of said small branch is between ten and fifteen millimeters.
- the section of the other of the two tabular branches 50 and 60, said large branch 50 has a diameter of between five and six millimeters and the length 53, shown in Figure 3, said large branch is of the order of twenty millimeters.
- FIG. 3 represents an embodiment of an assembly 120 comprising the stent 30 and a catheter 70 according to the invention.
- the catheter 70 having a tabular body 75.
- the tabular body 75 comprises at least four channels (not shown) extending therein, and two ends each extending through two tabular branches 80, 90, 100 and 110 whose end is open.
- Each tabular branch 80, 90 of one end of the catheter 70 has a bifurcation 81, 91 ending in a release device 83, 93.
- the two branches 100 and 110 of the other end of the catheter 70 are intended to be wrapped by the tabular branches 60 and 50 respectively of the stent 30 and have a length 101, 111 of between 2.5 cm and 3.5 cm.
- Two of the channels of the catheter 70 extend over the entire length of the tubular branches 80 and 90, of the tubular body 75, as well as of the tubular branches 100 and 110, so as to each receive a wire 82, 92 called guide outgoing by the open ends of said four tubular branches.
- the other two channels of the catheter 70 each comprise a so-called drop wire
- the end of the release threads is crimped around the stent 30 so that, in case of traction of said threads by means of the release devices 83 and 93, a distal part of the end of said threads comes off first.
- said stent which begins to release said stent, and
- a proximal portion of the end of said son then detaches said stent, which ends to release said stent.
- distal part is meant that part of the end of the release yarns which is the furthest away from the release devices 83 and 93. Therefore, the term “proximal portion” means that part of the end of the release that is closest to the release devices 83 and 93.
- the invention also relates to the use of such an assembly 120.
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Gastroenterology & Hepatology (AREA)
- Pulmonology (AREA)
- Prostheses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1551883A FR3033248B1 (fr) | 2015-03-05 | 2015-03-05 | Endoprothese et catheter perfectionnes |
PCT/EP2016/054811 WO2016139370A1 (fr) | 2015-03-05 | 2016-03-07 | Endoprothèse et cathéter perfectionnés |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3265026A1 true EP3265026A1 (fr) | 2018-01-10 |
Family
ID=53483948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16709330.1A Pending EP3265026A1 (fr) | 2015-03-05 | 2016-03-07 | Endoprothèse et cathéter perfectionnés |
Country Status (4)
Country | Link |
---|---|
US (1) | US20180064529A1 (fr) |
EP (1) | EP3265026A1 (fr) |
FR (1) | FR3033248B1 (fr) |
WO (1) | WO2016139370A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2017285041A1 (en) * | 2016-06-13 | 2019-01-31 | Aortica Corporation | Systems, devices, and methods for marking and/or reinforcing fenestrations in prosthetic implants |
EP3493766B1 (fr) | 2016-08-02 | 2024-03-06 | Bolton Medical, Inc. | Ensemble pour accoupler un implant prothétique à un corps fenêtré |
WO2019060816A2 (fr) | 2017-09-25 | 2019-03-28 | Aortica Corporation | Systèmes, dispositifs et procédés pour coupler un implant prothétique à un corps fenêtré |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2134997C (fr) * | 1994-11-03 | 2009-06-02 | Ian M. Penn | Stent |
EP1082947A1 (fr) * | 1999-09-09 | 2001-03-14 | Grampp, Stephan, Dr. med. | Greffon endo-luminal avec accés endo-luminal |
US20050059923A1 (en) * | 2003-09-17 | 2005-03-17 | Ricardo Gamboa | Fenestration with intrinsic means of selective closure incorporated to a tubular body and used in interventional cardiovascular procedures |
US7722665B2 (en) * | 2006-07-07 | 2010-05-25 | Graft Technologies, Inc. | System and method for providing a graft in a vascular environment |
US20080065197A1 (en) | 2006-09-12 | 2008-03-13 | Boston Scientific Scimed, Inc. | Bifurcated Stent |
US20090171451A1 (en) * | 2007-12-27 | 2009-07-02 | Cook Incorporated | Implantable device having composite weave |
US20110087318A1 (en) * | 2009-10-09 | 2011-04-14 | Daugherty John R | Bifurcated highly conformable medical device branch access |
MX2012005150A (es) * | 2009-11-03 | 2012-08-17 | Large Bore Closure L L C | Dispositivo de obturacion. |
AU2011200858B1 (en) * | 2011-02-28 | 2012-04-05 | Cook Medical Technologies Llc | Stent graft with valve arrangement |
EP3053545B1 (fr) * | 2011-04-28 | 2019-09-18 | Cook Medical Technologies LLC | Appareil destiné à faciliter le déploiement d'une prothèse endoluminale |
SG11201401358VA (en) * | 2011-10-10 | 2014-05-29 | Univ Singapore | Membrane for covering a peripheral surface of a stent |
AU2012258394B1 (en) * | 2012-11-27 | 2013-03-07 | Cook Medical Technologies Llc | Stent graft having a closeable fenestration |
US20140277347A1 (en) * | 2013-03-15 | 2014-09-18 | W. L. Gore & Associates, Inc. | Endoprosthetic device comprising a support channel capapble of receiving a branch endoprosthetic device |
-
2015
- 2015-03-05 FR FR1551883A patent/FR3033248B1/fr active Active
-
2016
- 2016-03-07 WO PCT/EP2016/054811 patent/WO2016139370A1/fr active Application Filing
- 2016-03-07 EP EP16709330.1A patent/EP3265026A1/fr active Pending
- 2016-03-07 US US15/555,410 patent/US20180064529A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20180064529A1 (en) | 2018-03-08 |
FR3033248B1 (fr) | 2019-04-26 |
WO2016139370A1 (fr) | 2016-09-09 |
FR3033248A1 (fr) | 2016-09-09 |
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