Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
  • A61B1/00131—Accessories for endoscopes
  • A61B1/00135—Oversleeves mounted on the endoscope prior to insertion
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
  • A61B1/00142—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with means for preventing contamination, e.g. by using a sanitary sheath
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
  • A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
  • A61B1/015—Control of fluid supply or evacuation
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
  • A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
  • A61B1/018—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor for receiving instruments

Definitions

• the subject of the invention is an overtube as well as a medical device using this overtube.
• the invention relates to the technical field of accessories allowing the introduction of endoscopes or any other medical device (such as an articulated gripper or a robotic arm) into a body cavity.
• the "sleeve-gastrectomy” is an invasive bariatric surgery technique aimed at reducing the size of the stomach with the aim of weight loss.
• An integral part of bariatric endoscopy, the "endo-sleeve” is an endoscopic technique that makes it possible to create folds in the gastric wall and to suture these folds in order to reduce the volume of the stomach (transoral gastric plication or transoral gastroplasty ).
• the solution proposed by the invention is an overtube comprising:
• first conduit adapted to house a first tube for inserting a first endoscope into the body, with a capacity for longitudinal movement of said first tube in said first conduit and a capacity for rotational movement of said first tube around its longitudinal axis , which first duct is arranged longitudinally inside said body and opens at the distal end of said body,
• a second conduit adapted to house a second tube for inserting a second endoscope or another medical device into the body, with a capacity for longitudinal movement of said second tube in said second conduit and a capacity for rotational movement of said second tube around its longitudinal axis, which second conduit is arranged longitudinally inside said body and opens at the distal end of said body,
• the first duct and the second duct communicate with each other, over their entire length, by a communication passage, which passage leads to the less at the level of the third orifice,
• an optical vision device is installed in the communication passage or in a third duct arranged in a wall of the body, which optical vision device opens at the distal end of said body.
• the overtube is an accessory generally used to insert a single endoscope insertion tube into a body cavity.
• the overtube is inserted into the esophagus, through the patient's mouth, to the stomach.
• the overtube according to the invention is now configured to receive two endoscopes or an endoscope and another medical device (for example a suturing forceps or a robotic device).
• the user can therefore use this new overtube with endoscopes or other conventional medical devices, to introduce into the body cavity (in particular transorally in the stomach or transanally in the rectum and the colon), two surgical instruments (one per endoscope or per medical device) to perform the surgery.
• the user no longer needs to purchase an expensive dual working channel endoscope as described in the aforementioned prior art.
• each medical device endoscope, suturing forceps, robotized device, etc.
• each medical device is generally provided with its own optical vision device.
• the overtube is itself equipped with an optical vision device, the user can observe the intervention area from three distinct points of view. By triangulating the images produced, the user can intervene with optimal gestures in three dimensions in the intervention zone.
• the first conduit, the second conduit and the communication passage are configured so that the first insertion tube of the first endoscope and the second insertion tube of the second endoscope or the other medical device do not touch each other when said tubes are housed in said ducts.
• the communication passage connecting the first conduit to the second conduit is narrower than said conduits.
• the body has a cross section in the shape of an 8, the first duct and the second duct being of identical or different shape and/or dimensions.
• a fourth orifice is provided at the level of the proximal part of the body for the introduction of the optical vision device, which fourth orifice opens into said communication passage or into the third duct.
• the third conduit communicates with the first conduit and the second conduit by the communication passage, at least in the length of the body which does not include the proximal part.
• the optical vision device is permanently installed in the third duct, without the possibility of removal, which device is integrated into the wall of the body.
• all or part of the orifices located at the level of the proximal part of the body are provided with a sealing device.
• the distal part of the body is provided with an element for maintaining position and inflatable sealing.
• the proximal part of the body comprises an orifice for the introduction of an inflation fluid; - said orifice communicates with a fourth duct arranged longitudinally in the wall of the body, which duct does not communicate with the communication passage nor with the first conduit, second conduit and third conduit; - The fourth duct has a distal end which opens into the inflatable element.
• Another aspect of the invention relates to a medical device comprising:
• first insertion tube having a first distal part equipped with a crutch, and inside which is arranged a first operating channel for the insertion of a first surgical instrument, which first channel opens at a first end distal of said first tube,
• a second endoscope or other medical device comprising:
• the first insertion tube is housed in the first duct, the first distal part and the first distal end of said first tube protruding outside of said first duct and of the body via the distal end of said body,
• the second insertion tube is housed in the second duct, the second distal part and the second distal end of said second tube protruding outside of said second duct and of the body via the distal end of said body,
• the optical vision device installed in the communication passage or in the third conduit is separate from the first optical vision device and the second optical vision device.
• FIG. 1 is a perspective view of a traditional endoscope, used in the invention, as well as an enlargement of the head of said endoscope.
• FIG. 2 is a diagram of an overtube according to the invention.
• FIG. 3a is a sectional view along A-A of the overtube of FIG. 2, according to a first embodiment.
• FIG. 3b is a sectional view along A-A of the overtube of FIG. 2, according to a second embodiment.
• FIG. 3c is a sectional view along A-A of the overtube of FIG. 2, according to a third embodiment.
• FIG. 3d is a sectional view along A-A of the overtube of FIG. 2, according to a fourth embodiment.
• FIG. 4 is a perspective view showing design details of a medical device using the overtube of Figure 2.
• FIG. 5 schematizes the positioning of the medical device of figure 4, in the body of a patient.
• FIG. 6 schematizes the formation of a fold in the gastric wall of a patient and its suturing, by means of the medical device according to the invention.
• FIG. 7 is a diagram of an overtube according to a variant embodiment of the invention.
• FIG. 8 is a sectional view along B-B of the overtube of Figure 7.
• FIG. 9 is a perspective view showing design details of a medical device using the overtube of Figure 7.
• FIG. 10 schematizes the positioning of the medical device of figure 9, in the body of a patient.
• FIG. 11 is a sectional view along C-C of the overtube of Figure 7.
• the medical device according to the invention comprises an overtube and two conventional endoscopes or a conventional endoscope and another medical device such as a suturing forceps or a robotic articulated arm, for example. It is particularly suitable for performing bariatric surgery, and more specifically bariatric endoscopy, but can be used for other endoscopic surgery such as gastric and colorectal surgery.
• Such a conventional endoscope 1 is shown in Figure 1. It is a flexible endoscope, also referred to as an endoscopic probe or fiberscope.
• It allows to explore internal cavities of the patient's body such as bronchi, esophagus, stomach, or other and to intervene surgically on a target area of that. this. It has an insertion tube 10 and a control handle 11 .
• the insertion tube 10 is a flexible tube extending along a longitudinal axis and which is intended to be inserted into the patient's body. It is generally cylindrical in shape and formed by a sheath made of a plastic material, the external diameter of which is between 3 mm and 13 mm.
• the tube 10 has a proximal end 101 secured to the control handle 11 and a distal end 102 - or head - which in use is located in the internal cavity of the patient's body.
• the length of tube 10 between the two ends 101 and 102 is between 300 mm and 1500 mm.
• the head 102 is placed at the end of a distal part 103 fitted with a lever handle controlled from the control handle 11 .
• an operating channel 104 This is a channel which extends longitudinally in the tube 10 and which opens at the level of the head 102.
• This channel 104 makes it possible to insert a surgical instrument (tweezers, stapler, scissors, brush, etc.) into tube 10 and bring out its part active (or tool) at the level of the head 102.
• the insertion of the surgical instrument is carried out from an inlet 110 located at the level of the control handle 11 and which opens into the channel 104.
• this operating channel 104 is unique.
• the tube 10 has only one operating channel 104.
• the operating channel 104 can be double, the tube 10 then having two operating channels.
• an optical vision device Inside the tube 10 is also provided a passage for an optical vision device.
• This device makes it possible to form an image of the intervention zone in the cavity. It comprises a light source 105 arranged on the head 102, for example formed of an LED or optical fibers, and to illuminate the intervention zone. It also comprises an image sensor 106 (eg: CCD camera) arranged on the head 102 to obtain an image of the illuminated intervention zone.
• a light source 105 arranged on the head 102, for example formed of an LED or optical fibers, and to illuminate the intervention zone.
• an image sensor 106 eg: CCD camera
• the tube 10 may also include, if necessary: a passage for injecting water opening out at the level of the head 102 through an injection orifice 107; a passage for insufflation of air emerging at the level of the head 102, through an insufflation orifice 108; a passage for a fluid suction opening at the level of the head 102, by a suction orifice 109.
• the control handle 11 is adapted to be connected to a connector (light, video) via a connection cord (not shown).
• a connection cord (not shown).
• FIG. 1 it comprises handles for controlling the handle of the distal part 103.
• the cables connecting the handles 111, 112 to the handle pass through the tube 10.
• the levers 111, 112 can cooperate with a brake 113 making it possible to block the kickstand in position.
• control handle 11 is also provided with a connector 114 for the water / air injection and a connector 115 for the suction of fluids.
• the two endoscopes of the medical device are similar to that described with reference to FIG. In the remainder of the description, the first endoscope is associated with the reference “A” and the second endoscope (or medical device) with the reference “B”.
• An overtube 2 according to the invention is illustrated in the appended figures. It comprises a tubular body 20 which is flexible and which extends longitudinally.
• the body 20 is for example made of silicone or polyurethane and obtained by extrusion or molding. It has a proximal part 21 and an open distal end 22.
• the length of the body 20 between the two ends 21 and 22 is for example between 50 mm and 1500 mm; its external diameter, or external dimension, is between 10 mm and 30 mm; and its thickness between 1 mm and 3 mm.
• two conduits 23A, 23B are arranged longitudinally in the body 20.
• the first conduit 23A is adapted to accommodate the first insertion tube 10A of the first endoscope 1 A.
• the second conduit 23B is suitable for housing the second insertion tube 10B of the second endoscope 1B.
• These two ducts 23A, 23B open out at the distal end 22.
• the conduits 23A, 23B are configured so that the tubes 10A, 10B can move longitudinally in the body 20.
• the tubes 10A, 10B have an up/down translation movement in the body 20.
• the internal dimensions (diameters) of the ducts 23A, 23B substantially correspond to the external dimensions (diameters) of the tubes 10A, 10B, being however slightly greater, for example from 0.5 mm to 1 mm, to facilitate the movement of said tubes along the longitudinal axis of the body 20.
• the conduits 23A, 23B also allow a rotational movement of the tubes 10A, 10B so that said tubes can pivot on themselves around their longitudinal axis, inside their conduit respectively 23A, 23B.
• the proximal part 21 of the body 20 has a general W-shape. It comprises a first orifice 231 A for the introduction of the first tube 10A into the first duct 23A and a second orifice 231 B for the intro of the second tube 10B in the second conduit 23B.
• a third orifice 233 is also arranged at the level of the proximal part 21 . This third orifice 233 serves to introduce a lubricant simultaneously into the two ducts 23A, 23B.
• This lubricant is for example paraffin oil or glycerin.
• the third orifice 233 has for example a diameter comprised between 1 mm and 10 mm.
• the lubricant used can be contained in a reservoir 239 of the flexible bulb or syringe type, optionally connected to the third orifice 233 by a conduit 235. By manually exerting pressure on the reservoir 239 or the syringe, the lubricant is dispensed into the body 20.
• the first conduit 23A and the second conduit 23B communicate with each other, at least in the length of the body 20 which does not include the proximal part 21, by a passage communication 24.
• the ducts 23A, 23B are separated and are no longer adjacent in the proximal part 21.
• the ducts 23A, 23B are adjacent over their entire length, including in the proximal part 21, and communicate with each other, over their entire length, through the passage 24.
• This passage 24 opens at the level of the third orifice 233.
• the first conduit 23A, the second conduit 23B and the passage 24 are configured such that the body 20 has a cross-section in the shape of an 8 (FIGS. 3a-3d).
• This configuration avoids any extra thickness of the wall of the body 20, which not only makes it possible to optimize its size, but also to reduce the cost of manufacture.
• the two ducts 23A and 23B are symmetrical (same dimensions and same shape).
• the two ducts 23A and 23B are asymmetrical (different dimensions and/or shape), the second duct 23B being smaller than the first duct 23A.
• This asymmetrical configuration reduces the caliber of the body 20.
• an endoscope or other device of smaller size can be installed.
• the first conduit 23A, the second conduit 23B and the passage 24 are also configured so that the two tubes 10A and 10B do not touch each other when they are housed in said conduits. This avoids any overlap and friction of the tubes 10A, 10B between them, likely to interfere with their insertion and / or movement in the body 20.
• the passage 24 is more narrow as the conduits 23A, 23B.
• the overtube 2 is also provided with its own optical vision device 25 which is distinct from the vision devices of the endoscopes or medical devices 1A and 1B.
• the optical vision device 25 is a medical camera in the form of a probe comprising a cord or flexible tube (possibly bendable) at the distal end of which is arranged the image sensor 250 possibly associated with a light source of the LED type or optical fiber(s) ).
• This medical camera makes it possible in particular to obtain another image of the intervention area, and in particular an overall view of the operating field for the organ in question (stomach, duodenum, colon, rectum, etc.).
• a medical camera in the form of a probe comprising a cord or flexible tube (possibly bendable) at the distal end of which is arranged the image sensor 250 possibly associated with a light source of the LED type or optical fiber(s) ).
• This medical camera makes it possible in particular to obtain another image of the intervention area, and in particular an overall view of the operating field for the organ in question (sto
• the camera 106A of the first endoscope 1A makes it possible to visualize the instrument pinching the gastric wall and forming the fold
• the camera 106B of the second endoscope 1B makes it possible to visualize the instrument suturing this fold
• the camera 250 allows to have a wider image of the intervention area, where these two instruments are simultaneously viewed.
• the image data from the cameras 106A, 106B and 250 contribute to making it possible to obtain a triangulation of the gestures of the operator(s) and can also be combined to obtain a 3D image of the intervention zone.
• the optical vision device 25 includes a connector 251 (for example a USB connector) allowing it to be connected to a video module of an endoscopy column. This connector 251 is placed at the proximal end of the tube of the device 25.
• the optical vision device 25 is installed in the communication passage 24. Referring to Figure 2, the optical vision device 25 is introduced into the passage 24 from a fourth port 234 provided at the level of the proximal part 21 and which opens into said passage 24.
• the fourth orifice 234 has for example a diameter of between 1 mm and 10 mm.
• the optical vision device 25 is installed in a third duct 15 arranged longitudinally in the wall of the body 20.
• This third duct 15 is closed, that is to say that it does not does not communicate with the passage 24 and with the ducts 23A, 23B, at least in the length of the body 20 which does not include the proximal part 21 .
• the ducts 23A, 23B and 15 can be separated or communicated with each other.
• the third duct 15 opens at the level of the distal end 22 of the body 20 (FIG. 2) and opens in the proximal part 21, at the level of the fourth orifice 234.
• the optical vision device 25 can be inserted into the third conduit 15, from the fourth port 234, with the possibility of removal.
• the third duct 15 is then advantageously configured so that the device 25 can move longitudinally in the body 20 (with an up/down translation movement).
• the internal dimensions (diameter) of the third duct 15 correspond substantially to the external dimensions (diameters) of the tube forming the device 25, being however slightly greater, for example from 0.5 mm to 1 mm, to facilitate the movement of said device according to the longitudinal axis of the body 20.
• the duct 15 also allows a rotational movement of the device 25 so that said device can pivot on itself about its longitudinal axis, inside said duct.
• the optical vision device 25 is permanently installed in the third conduit 15, without the possibility of removal.
• the device 25 can in particular be integrated into the wall of the body 20, for example during molding of the latter.
• the third conduit 15 is open, that is to say it communicates with the first conduit 23A and the second conduit 23B, at least in the length of the body 20 which does not include the proximal part 21, through the passage 24.
• the ducts 23A, 23B and 15 can be separated or communicated with each other.
• the third duct 15 opens here again at the level of the distal end 22 of the body 20 (FIG.
• the optical vision device 25 when the optical vision device 25 is installed in the body 20 and housed in the third duct 25, its head 250 protrudes outside of the said duct and of the said body, via the distal end 22 of the latter.
• the image sensor 250 thus protrudes from the body 20 to, in use, be positioned in the body cavity.
• the instrument 3A inserted into the operating channel 104A of the first tube 10A of the first endoscope 1A is a clamp, preferably a clamp with wide jaws (width between 3 mm and 10 mm), which is not traumatic.
• the instrument 3B inserted into the operating channel 104B of the second tube 10B of the second endoscope 1B is a surgical stapler or a mounted clip, ensuring the simultaneous placement of one or more staples or clips (for example the simultaneous placement of several rows of staples or clips).
• the staples or clips used are preferably made of titanium. As an indicative example, their width is approximately 3 mm and their length included between 3mm to 5mm.
• This type of surgical stapler is for example marketed by the companies Ethicon Endo Surgery® or Covidien®.
• the instruments 3A, 3B come out of their respective operating channel 104A, 104B, and are located outside the body 20 to be positioned in the body cavity.
• Figure 5 illustrates the placement of the medical device in the body of a patient P for a bariatric surgery operation.
• the overtube 2 is first inserted from the mouth B of the patient P, into the esophagus O, until the distal end 22 of the body 20 is located in the stomach E. This insertion can be carried out on a guidewire initially placed under gastroscopy control.
• the overtube 2 When the overtube 2 is installed, its proximal part 21 is located outside the mouth B of the patient P, so that the orifices 231 A, 231 B and 233 are accessible.
• the first tube 10A of the first endoscope 1 A is then inserted into the body 20. This insertion is carried out from the inlet port 231 A so that the first tube 10 is housed in the first conduit 23A.
• the tube 10A and/or the first duct 23A are advantageously lubricated beforehand. This insertion is finalized when the distal part 103A and the head 102A of the first tube 10A emerge from the first duct 23A and are located in the stomach E, close to the area of intervention.
• This insertion can be performed under the control of the optical vision device of the first endoscope 1A and/or of the optical vision device 25 specific to the overtube 2.
• the first instrument 3A is then inserted into the operating channel 104A of the first tube 10A through the entry port 110A. This insertion is finalized when the tool (eg: forceps) of the first instrument 3A comes out of the head 102A to be located in the stomach E.
• the second instrument 3B is inserted in the same way into the operating channel 104B of the second tube 10B of the second endoscope
• the instruments 3A, 3B can be actuated from control members 30A, 30B located outside the body of the patient P. [41] If the user needs to move the tools of the instruments 3A, 3B closer to or away from the intervention zone, he can manipulate the endoscopes 1A, 1B to slide and/or pivot the tubes 10A, 10B in their respective ducts 23A, 23B. These movements are preferably accompanied by lubrication of the conduits 23A, 23B from the third orifice 233.
• the tools of instruments 3A and 3B are positioned at the intervention zone.
• This zone is here a region of the gastric wall PG (peritoneum).
• the bending of the distal parts 103A, 103B makes it possible to specifically orient each instrument 3A, 3B, the forceps and the stapler being here oriented at 90°.
• Each instrument 3A, 3B is also viewed by its own camera 106A, 106B and by the camera 250 of the optical viewing device 25. The user therefore has a better view of the intervention zone which he can observe from three angles. different.
• the clamp 3A is positioned perpendicular to the wall PG. This forceps is actuated to pinch the PG wall and come to form a wide fold which can take away the peritoneal layers.
• the stapler or the mounted clip 3B is positioned perpendicular to the clamp 34 and in fact, perpendicular to the fold thus formed.
• the 3B mounted stapler or clip is then operated to staple the fold and hold it in position. There is no seam in the PG wall but simply support with clips or staples, which is much faster and less traumatic for said wall, with no risk of peritoneal invasion.
• a gas air or CO2
• This gas is generally blown in through an insufflation orifice 108 of the endoscope 1A or 1B.
• 231 B, 233, 234 located at the level of the proximal part 21, are advantageously provided with a sealing device.
• this sealing device is in the form of a ring 5 installed on the outer wall of the orifice 231 A, 231 B, 233, 234 and which grips said orifice so as to form a seal with the element which is introduced therein.
• the sealing device is in the form of a valve or an inflatable part cooperating with the element introduced into the orifice 231 A, 231 B, 233, 234 to form a seal against the gas.
• the distal portion 22 of the body 20 is provided with an inflatable element 26.
• This element 26 is for example in the form of a balloon or an inflatable collar fixed on the external wall of the body 20.
• the inflatable part of this balloon or of this collar 26 is for example made of silicone or polyurethane.
• the element 26 is inflated by a fluid (in particular air or water). A configuration where element 26 is inflated is shown by the dotted line in Figure 7.
• the proximal part 21 of the body 20 comprises a fifth orifice 236 for the introduction of the inflation fluid.
• the fifth orifice 236 communicates with a fourth duct 260 arranged longitudinally in the wall of the body 20.
• This fourth duct 260 is closed, that is to say it does not communicate with the passage 24 , nor with the ducts 23A, 23B, 15.
• the distal end 2600 of this fourth duct 260 opens into the inflatable element 26.
• the inflation fluid can be introduced by a pump 237 or a syringe, connected possibly to the fifth port 236 through a conduit 238. Deflation is done in the reverse manner by purging the fluid from the fifth port 236.
• This inflatable element 26 has a dual function. Firstly, it makes it possible to hold the overtube 2 in position in the cavity in which the latter is introduced, without causing trauma. In FIG. 10, when the element 26 is inflated, it acts against the esophageal wall so that the distal part 22 is perfectly maintained in position. The inflatable wall exerts pressure on the esophageal wall, without injuring it. Second, the inflatable element 26 forms a seal against the gas blown into the body cavity. In the example of figure 10, there is no loss through the esophagus O.

Landscapes

• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Surgery (AREA)
• Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
• Biomedical Technology (AREA)
• Optics & Photonics (AREA)
• Pathology (AREA)
• Radiology & Medical Imaging (AREA)
• Biophysics (AREA)
• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Heart & Thoracic Surgery (AREA)
• Medical Informatics (AREA)
• Molecular Biology (AREA)
• Animal Behavior & Ethology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Endoscopes (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=75108527

Family Applications (1)

Country Status (3)

Family Cites Families (10)

• 2020
  • 2020-12-29 FR FR2014212A patent/FR3118403B1/fr active Active
• 2021
  • 2021-12-23 WO PCT/EP2021/087510 patent/WO2022144303A1/fr unknown
  • 2021-12-23 EP EP21836585.6A patent/EP4271242A1/de active Pending

Also Published As

Similar Documents

Legal Events