EP4661732A1 - Procédé pour déterminer si le canal opérateur d'un endoscope médical a été utilisé - Google Patents
Procédé pour déterminer si le canal opérateur d'un endoscope médical a été utiliséInfo
- Publication number
- EP4661732A1 EP4661732A1 EP24709802.3A EP24709802A EP4661732A1 EP 4661732 A1 EP4661732 A1 EP 4661732A1 EP 24709802 A EP24709802 A EP 24709802A EP 4661732 A1 EP4661732 A1 EP 4661732A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheath
- operating channel
- insertion tube
- distal end
- medical endoscope
- 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- Withdrawn
Links
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
- A61B1/00002—Operational features of endoscopes
- A61B1/00057—Operational features of endoscopes provided with means for testing or calibration
-
- 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
- A61B1/00002—Operational features of endoscopes
- A61B1/00004—Operational features of endoscopes characterised by electronic signal processing
- A61B1/00009—Operational features of endoscopes characterised by electronic signal processing of image signals during a use of endoscope
-
- 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
- A61B1/00002—Operational features of endoscopes
- A61B1/00062—Operational features of endoscopes provided with means for preventing overuse
-
- 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
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
- A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
-
- 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
- A61B1/00137—End pieces at either end of the endoscope, e.g. caps, seals or forceps plugs
-
- 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 invention relates to the technical field of medical endoscopes.
- the medical endoscopes according to the invention allow access to the internal surface of a hollow organ, a cavity or a natural or artificial conduit of the human body in order to perform various operations for therapeutic, surgical or diagnostic purposes.
- the medical endoscopes according to the invention are used for the inspection of all internal parts of the human body accessible by natural or artificial routes.
- the medical endoscopes according to the invention can be used in the field of the urinary tract, the gastrointestinal tract, the respiratory system, the cardiovascular system, the trachea, the sinus cavity, the female reproductive system, the abdominal cavity or any other part of the human body to be explored by a natural or artificial route.
- a medical endoscope comprises, as described for example by patent application WO 2014/106510, a control handle to which an insertion tube is attached.
- This tube comprises a distal head equipped with an optical viewing system for illuminating and examining the organ, cavity or duct of the human body. Upstream of this distal head, the insertion tube comprises a bending structure or deflection portion for orienting the distal head using one or more actuation cables mounted inside the insertion tube.
- This tubular structure is adapted to allow one or more devices designed to perform different functions such as, for example, fluid supply, fluid suction, etc. to be brought to the distal head. the supply of instruments, the taking of samples or surgical operations.
- the distal head of the endoscope is also equipped with at least one so-called operator or working channel to allow the passage of these various devices.
- such an endoscope is provided with a multifunctional distal head configured to allow the implantation of the vision system and the passage of these various devices.
- this distal head has a passage or bulk section which is limited by the smallest width of the natural or artificial access route in which the tubular structure is engaged. Given the diversity of functionalities that an endoscope must have and the dimensional constraints imposed by the access route, it appears difficult to configure the distal head so that certain functions of the endoscope can be carried out successfully.
- the insertion tube When used by the practitioner, the insertion tube is inserted into the cavity or natural duct being inspected. After use, the medical endoscope, and in particular the insertion tube, is either discarded or cleaned and disinfected, or even sterilized, for reuse. Various means for cleaning and disinfecting the insertion tube exist, but their effectiveness is often limited, which can constitute a source of nosocomial infection for the patient.
- This sheath has a tip at its distal end, and an insulating sheet inside to limit friction of the actuation cables and the insertion tube in particular, and to ensure that they are held in position.
- US Patent 8,360,968 may also be cited, which relates to a protective sheath to isolate an endoscope from tissues during use, and thus avoid any cleaning or sterilization between patients.
- This sheath includes a window at its distal end, as well as at least one light source mounted therein.
- Document US 10,085,616 describes an endoscope comprising two detection systems in order to facilitate the manipulation of the endoscope during a medical procedure.
- the first makes it possible to detect an “out of range” state of the distal end of the endoscope tube.
- the second detection system makes it possible to detect whether a treatment tool has been inserted into the operating channel.
- the second detection system comprises a light emitter and a light detector arranged opposite each other in the operating channel, such that the tool blocks the detection of light when it is inserted into the channel up to the level of the detector.
- this alert is emitted before the tool protrudes from the distal end of the tube.
- the detection is preferably carried out in the proximal part of the tube. This document does not does not describe a system to determine whether the sheath is intact, since the detection system is located in the proximal part of the insertion tube.
- Document EP 4 119 933 describes the use of an inspection system to determine whether a medical endoscope has been properly cleaned and disinfected after use.
- the inspection system comprises an information processing device and an endoscope for inspection. More specifically, the tube of the endoscope for inspection enters the inspected endoscope via a dedicated channel at the end of the insertion tube of the inspected endoscope. The tube of the endoscope for inspection may be covered with a sheath at each inspection.
- Document WO 2020/096893 describes the use of a borescope to inspect the channel of an endoscope, and thus detect the presence of biological residue or damage in said channel. In both documents, the use of a second tool penetrating the channel of the endoscope is required.
- the invention aims to remedy the drawbacks of the state of the art, by proposing a method for determining whether an operating channel of an insertion tube of a medical endoscope has been used, comprising the following steps:
- a medical endoscope comprising a distal head equipped with a camera, an insertion tube crossed by an operating channel having a distal part and opening into the distal head, and an external sheath having a distal end, completely covering the insertion tube by matching its shape, so that the external sheath covers the distal head by its distal end, 2) acquire, using the camera, identification images of the use of the operator channel, in order to determine whether the operator channel has been used.
- the method according to the invention has the advantage of making it possible to easily determine whether the endoscope has been contaminated during its use.
- the method used has the advantage of being easily implemented, and of not requiring bulky equipment which could not be present at the distal head of the endoscope.
- no additional endoscope or borescope is required in the context of the invention.
- the method according to the invention advantageously has one or other of the following characteristics, or a combination thereof:
- the identification images of the use of the operating channel are images of the distal end of the external sheath, to determine the presence or absence of the distal end of the sheath;
- the images for identifying the use of the operating channel are images of the extension of the operating channel, in order to determine the passage of a tool or a fluid in the distal part of the operating channel;
- step 2 the identification images of the use of the operator channel are displayed on a display screen
- the method includes:
- a step 1.1) consisting of acquiring, using the camera, and recording images identifying the use of the operating channel before use of the medical endoscope, in order to acquire and record a reference image
- step 2) subsequent to step 2), consisting of comparing the reference image with the identification images of the use of the operator channel;
- an alert signal is issued when the reference image and the identification image of the use of the operator channel are different;
- the method comprises a step 3), subsequent to step 2.1), consisting in blocking the use of the medical endoscope when the reference image and the image identifying the use of the operating channel are different;
- step 3 consists of ordering the camera to prohibit image acquisition
- the method comprises a step 4), subsequent to step 3), of unlocking consisting of entering a name or a code;
- the medical endoscope in step 1) is such that the distal end of the outer sheath has a marking area capable of being viewed by the camera;
- the reference image in step 1.1) includes a marking area present on the distal end of the outer sheath
- the medical endoscope in step 1) comprises at least one internal sheath completely covering and matching the shape of the insertion tube, the at least one internal sheath having a marking area capable of being viewed by the camera, distinct from the marking area of the external sheath;
- the medical endoscope in step 1) is such that the distal end of the outer sheath is made of a plastic material having a transparency index ranging from 40% to 100%, allowing an identification image of the use of the operating channel to be visualized.
- the invention also relates to a method for preparing a medical endoscope for reuse, comprising the following steps: i) determining, according to the method according to the invention, whether the operating channel passing through an insertion tube of a medical endoscope has been used, the medical endoscope comprising a distal head equipped with a camera, an insertion tube crossed by an operating channel having a distal part and opening into the distal head, and an external sheath having a distal end, completely covering the insertion tube by matching its shape, such that the external sheath covers the distal head by its distal end, ii) completely or partially removing the external sheath if the operating channel has been used, to allow the reuse of the medical endoscope.
- the method according to the invention has the advantage of being safe for the patient and easy to implement.
- the method according to the invention advantageously has one or other of the following characteristics, or a combination thereof:
- the outer sheath surrounds at least one inner sheath covering integrally and conforming to the shape of the insertion tube, the at least one inner sheath having a distal end, and, in step ii), the at least one inner sheath is completely or partially removed if the operating channel has been used;
- the outer sheath, and the at least one inner sheath when the latter is present have a tearing system in order to partially or completely remove the outer sheath and the at least one inner sheath when the latter is present;
- the tearing system surrounds the distal end of the outer sheath and of the at least one inner sheath when the latter is present;
- the tearing system extends over all or part of the length of the insertion tube, in order to completely remove the external sheath and at least one internal sheath when the latter is present.
- Figure 1 is a side view of a medical endoscope whose insertion tube is provided with a sheath in accordance with the invention.
- Figure 2 is a sectional view of an insertion tube provided with a sheath made in a single piece, without welding or exogenous filler.
- Figure 3A is a sectional view of an insertion tube provided with a sheath produced by the assembly of a sleeve and a closing part in the form of a flat element completely covering the distal face of the distal head.
- Figure 3B is a sectional view of an insertion tube provided with a sheath produced by assembling a sleeve and a closing part in the form of a flat element having a rim.
- Figure 3C is a sectional view of an insertion tube provided with a sheath produced by assembling a closing portion and a sleeve having a return in order to hold the closing portion in position.
- Figure 4 is a sectional view of an insertion tube provided with five superimposed sheaths made in a single piece, without welding or exogenous filler.
- Figure 5 is a plan view of the distal head taken from its distal face.
- Fig. 6A is a side view of a sheath having a tearing system comprising a line of weakness surrounding the distal end of the sheath.
- Figure 6B is a side view of a sheath having a tearing system comprising a line of weakness extending along the length of the sleeve.
- Figure 7 is a side view of a sheath having a tearing system comprising a line of weakness and a notch.
- Figure 8 is a sectional view of an insertion tube provided with a sheath with the distal end of the sheath not intact.
- Figure 1 illustrates a medical endoscope 1 that can be used in the context of the invention, designed to access the interior of a body such as a cavity or a canal for example.
- a medical endoscope 1 comprises an insertion tube 2 having, on one side, a proximal part 2p connected to a housing of a control handle 3, on the opposite side, a distal part 2d which is equipped with a distal head 4.
- the distal head 4 has a distal face.
- the distal head 4 is orientable by means of actuation cables 5.
- the distal head 4 is equipped with an optical visualization system for illuminating and examining the organ, cavity or canal of the human body inspected.
- the optical viewing system comprises a camera 6.
- the optical viewing system further comprises two light sources 7.
- the endoscope 1 also comprises an operating or working channel 8 in the insertion tube 2, extending from the control handle 3 to the distal head 4 to allow the supply of various tools and/or fluids and/or the suction of fluids.
- the operating channel 8 opens into the distal head 4 via an outlet.
- the operating channel 8 has a distal portion 8d and a proximal portion 8p.
- the insertion tube 2 is completely covered with at least one sheath or sock 9, and preferably from one to five sheaths 9.
- the outermost sheath is referred to as the outer sheath, and, when these are present, the sheath(s) located between the insertion tube and the outer sheath are called inner sheaths.
- “sheath” without mention of “outer” or “inner” designates not only the outer sheath but also the inner sheath(s) when these are present.
- each sheath 9 has a distal end 9d and a proximal end 9p. Each sheath covers the distal face of the distal head by its distal end 9d. In order to be able to be used in endoscopy, the distal end 9d of the sheath 9 must be transparent to ultrasound and light waves. Also, the entire sheath 9 or only a part (therefore including at least the distal end 9d) is transparent to ultrasound and light waves. Thus, despite the presence of one or more sheaths 9, the use of the endoscope 1 is not disturbed, and in particular that of the visualization system.
- a material or an area or an element such as a sheath or a sleeve or a closure part for example
- transparent means that this material or area or element has a transparency index ranging from 40% to 100%.
- a transparency index can be determined using a UV/visible/near IR spectrophotometer, by carrying out a transmission measurement of the emitted light and the light having passed through the material. The transmission index is then determined by the percentage of light having passed through the material relative to the emitted light.
- each sheath 9 is sealed in order to preserve the insertion tube 2 (and possibly one or more internal sheath(s)) from any contamination.
- each sheath 9 must be biocompatible in order to be used in endoscopy.
- each sheath is flexible and stretchable. so as not to hinder the movements of the insertion tube, in particular at the level of the bending structure or the bending part.
- each sheath 9 comprises a tubular sleeve 10 closed at one of its ends by a closing part 11.
- This closing part 11 is either an added element or integrated so that the tubular sleeve 9 and the closing part 10 form a single piece.
- the tubular sleeve 10 is flexible and stretchable so as not to disturb the movements of the distal head of the insertion tube 2, and in order to be able to adapt and match the shape of the insertion tube 2 which it envelops.
- the sleeve 10 must be made of biocompatible material in order to be able to be used in endoscopy.
- the sleeve 10 is also sealed in the context of the invention, in order to preserve the insertion tube 2 (and possibly one or more internal sheath(s)) from any contamination.
- the sleeve 10 has a hardness ranging from 1 to 70 Shore D, and preferably from 20 to 40 Shore D, and a thickness of 10 ⁇ m to 300 ⁇ m, and preferably from 100 ⁇ m to 200 ⁇ m.
- the resistance is measured with a durometer according to the ISO 7619-1:2010 standard, and the thickness is measured using a micrometer.
- the sleeve 10 is made of a heat-shrinkable thermoplastic elastomer material, such as, for example, polyurethanes, polyamides, polyvinyl chlorides, polytetrafluoroethylenes (PTFE), or polyamide-polyether block copolymers.
- a heat-shrinkable thermoplastic elastomer material such as, for example, polyurethanes, polyamides, polyvinyl chlorides, polytetrafluoroethylenes (PTFE), or polyamide-polyether block copolymers.
- the closure portion 11 must be made of biocompatible material in order to be used in endoscopy.
- the closure portion 11 is also sealed in the context of the invention, in order to preserve the insertion tube 2 (and possibly one or more internal sheath(s)) from any contamination.
- the closure portion 11 must also have sufficient strength properties to avoid any tearing during endoscopy.
- the closing part 11 can be flexible and stretchable in order to match the shape of the distal face of the distal head 4, or on the contrary rigid.
- the sheath 9 is made in a single piece, without welding or exogenous addition. According to this embodiment, the sheath 9 then consists of the sleeve 10 and a closing part 11 of the same nature. According to this embodiment, the entire sheath 9 is transparent to ultrasonic and light waves. The entire sheath 9 is then made of the same material, which is flexible and stretchable, and has the same hardness. According to this embodiment, the entire sheath 9 can have the same thickness, or on the contrary have areas of lesser thickness in order, for example, to facilitate the bending of the insertion tube 2.
- the closing part 11 and the tubular sleeve 10 are not of the same nature, that is to say that the sheath 9 is not made in a single piece.
- the tubular sleeve 10 and the closing part 11 are then two separate elements assembled together in a non-removable and sealed manner, for example by welding or by gluing or by heating. In order to ensure sealing, it is preferable that there is an overlap between the sleeve 10 and the closing part 11.
- the sleeve 10 is as described above, and may be transparent to ultrasonic and/or light waves although this is not obligatory.
- the closing part 11 is transparent to ultrasonic and light waves, and is placed opposite the optical viewing system.
- the closing part may be made of glass; of polymethyl methacrylate (PMMA); made of polycarbonate (PC); made of thermoplastic elastomer material such as polyurethanes, polyamides, polyvinyl chlorides, polytetrafluoroethylenes (PTFE), or polyamide-polyether block copolymers.
- PMMA polymethyl methacrylate
- PC polycarbonate
- thermoplastic elastomer material such as polyurethanes, polyamides, polyvinyl chlorides, polytetrafluoroethylenes (PTFE), or polyamide-polyether block copolymers.
- the closing part 11 and the sleeve 10 are made of the same material.
- the closing portion 11 is advantageously attached to the distal face of the distal head 4.
- the closing portion 11 covers the entire distal face of the distal head 4.
- the closing portion 11 covers only part of the distal face distal of the distal head 4 including the visualization system.
- the operating channel 8 is either covered by the closing part 11 or by the sleeve 10.
- the closure portion 10 may be in the form of a flat element with or without flanges.
- the closure portion may be in the form of a curved element to adapt to the shape of the distal face of the distal head, it being understood that this element comprises a flat zone at the level of the visualization system to avoid any optical aberration.
- this element comprises a flat zone at the level of the visualization system to avoid any optical aberration.
- a curved element with a flat zone intended to be opposite the visualization system could be used instead of this flat element.
- the closing portion 11 is in the form of a flat element (without rim), of the same dimensions and same shape as the distal face of the distal head 4.
- the closing portion 11 and the distal face of the distal head 4 are intended to be placed in a superposition or coincidence position.
- the sleeve 10 covers the insertion tube 2 up to its distal portion 2d.
- the sleeve 10 is assembled to the closing portion 11 without overlap between the sleeve 10 and the closing portion 11.
- the closing portion 11 is in the form of a flat element 11a extended at right angles by a rim 11b.
- the flat element 11a of the closing portion 11 has the same dimensions and the same shape as the distal face of the distal head 4.
- the sleeve 10 covers the insertion tube 2, preferably up to its distal portion 2d.
- the rim 11b partially covers the sleeve 10, which makes it possible to guarantee the sealing of the sheath 9.
- the closing part 11 is in the form of a flat element (without rim), preferably of the same dimensions and shape as the distal face of the distal head 4, although it is possible that it is of smaller dimension than the distal face of the distal head 4.
- the sleeve 10 projects beyond the distal part 2d of the insertion tube 2 and is extended at right angles by a return 10b which presses the closing part 11 against the distal head 4.
- the operating channel 8 is then covered by the closing part 11 and/or by the return 10b of the sleeve 10.
- each tubular sleeve 10 matches the shape of the insertion tube 2.
- the sleeve 10 and the insertion tube are joined (or two sleeves between them in the case where the insertion tube 2 is covered with several sheaths), so that no space is present between the sleeve 10 and the insertion tube 2 (or two sleeves between them in the case where the insertion tube 2 is covered with several sheaths).
- the insertion tube 2 is covered with a single sheath 9.
- the insertion tube 2 is covered with several sheaths 9, and typically from two to five sheaths 9.
- sheaths 9 are advantageously substantially of the same dimensions and the same shape.
- the different sheaths are superimposed on each other and on the insertion tube 2.
- a first sheath 9 covers the insertion tube 2, called internal
- a second sheath 9 covers the first sheath 9, and any subsequent successive sheaths cover the previous sheath.
- the insertion tube 2 is covered with five sheaths 9 superimposed on each other: an external sheath and four internal sheaths. Due to the flexible and stretchable nature of the sleeves, the five sheaths fit the shape of the insertion tube 2 without disturbing the movements of the distal head 4.
- the sheath 9 comprises a marking zone 12 capable of being viewed by the camera 6.
- the marking zone 12 is typically located on a portion of the distal end 9d of the sheath 9, as illustrated in FIG. 5, and preferably in the field of vision peripheral of the camera 6 so as not to obstruct the viewing of the cavity or the inspected conduit.
- This marking area 12 does not extend over the entire distal end 9d of the sheath 9 in order to allow the practitioner to view the cavity or the inspected conduit using the viewing system.
- This marking area 12 can for example be produced by laser, by screen printing, by hot stamping or by molding.
- each sheath 9 comprises a marking area 12 on a portion of its distal end 9d.
- the marking areas 12 of the different sheaths 9 are not placed in a position of superposition or coincidence, so that it is possible to visualize each of the marking areas corresponding to each sheath 9 using the visualization system, and in particular the camera 6.
- the marking areas 12 of the sheaths 9 are in the peripheral field of the camera 6 so as not to hinder the visualization of the inspected cavity or duct.
- each sheath 9 has a tearing system 13 in order to allow the sheath(s) 9 to be removed more easily, completely or partially, after use of the medical endoscope 1.
- the tearing system 13 may consist of one or more lines of lesser strength, for example pre-cut lines or lines of lesser thickness. Alternatively, the tearing system 13 may consist of one or more lines of greater strength. Alternatively, the tearing system 13 may consist of a tearing element incorporated in the sheath or between two sheaths 9 (or between the sheath 9 and the insertion tube 2), for example a wire of greater strength than the strength of the sheath 9. Alternatively, the tearing system 13 may consist of a notch.
- the tearing system 13 is made up of:
- At least one line of lesser resistance for example pre-cut lines or lines of lesser thickness and/or at least one line of greater resistance, and/or at least one tearing element incorporated in the sheath 9 or placed between two sheaths 9 (or between a sheath 9 and the insertion tube 2) such as, for example, a wire of resistance greater than the resistance of the sheath,
- the lines of lesser resistance and the notches can be produced using a cutting member such as, for example, knives, punches or serrated blades.
- the lines of greater resistance can be produced by coextrusion of two materials of different hardnesses, the first for producing the sheath 9 and the second, having a harderness greater than that of the sheath, for producing the line of greater resistance.
- the tearing system 13 comprises at least one tearing element, the latter can be produced by inserting, in the sheath 9 or between two sheaths 9 (or between the sheath and the insertion tube), a wire having a harderness greater than that of the material constituting the sheath 9.
- the tearing system 13 surrounds the distal end 9d of the sheath 9, or of all the sheaths if the insertion tube 2 is covered by several sheaths. According to this embodiment, it is then possible to remove only the distal end of the sheath(s) to allow the passage of tools and/or fluids through the outlet of the operating channel.
- the tearing system 13 consists of a circumferential line of least resistance 13a surrounding the distal end 9d of the sheath 9.
- the tearing system 13 of each sheath 9 extends over all or part of the length of the insertion tube 2.
- the tearing system 13 consists of a longitudinal line of least resistance 13b extending over part of the length of the sleeve 10.
- the invention relates to a method for determining whether the operating channel 8 of the insertion tube 2 has been used for supplying equipment or tools, fluid or suctioning fluid.
- the method according to the invention makes it possible to determine whether the medical endoscope 1, and in particular the insertion tube 2, has been contaminated or not. More specifically, the method according to the invention comprises the following steps:
- the images identifying the use of the operating channel 8 are images, taken by the camera 6 located in the distal head 4, of the extension of the operating channel 8 and/or images of the distal end 9d of the at least one sheath covering the insertion tube 2 of the medical endoscope 1 (i.e. the external sheath and possibly the internal sheath(s)). These images are acquired using the camera 6.
- the images of the distal end 9d of the sheath 9 make it possible to determine whether the distal end 9d of the sheath 9 is present or not, and to conclude whether the sheath 9 is intact or not. Indeed, any modification of the image (for example, disappearance of the marking zone) indicates that the sheath 9 is not intact, and that, consequently, the operating channel 8 has been used. This is illustrated in FIG. 8 for the case where the insertion tube is covered with a single external sheath, but this could be the case in a similar manner when the insertion tube 2 is covered with an external sheath 9 and at least one internal sheath 9.
- the images of the extension of the operating channel 8 are taken from the distal head and make it possible to visualize whether a tool or fluid is present at the distal head, and thus to determine whether the operating channel has been used. These images are acquired using the camera 6 located in the distal head 4, and make it possible to visualize beyond the distal face of the distal head 4.
- the identification images of the use of the operator channel 8 acquired using the camera 6 are recorded in a processing unit which comprises image processing software.
- the use identification images of the operating channel 8 can be displayed on a display screen (not shown in the figures).
- the practitioner can easily view any change in the use identification image of the operating channel 8, and deduce therefrom whether the operating channel 8 has been used.
- the sheath(s) 9 comprise a marking area 12
- the latter can be viewed on the display screen.
- the image processing software is configured to enable recognition of shapes in the images in order in particular to recognize tools or the flow of fluid exiting the operating channel 8, or to recognize any modification of the distal end 9d of the sheath 9.
- This second embodiment is notably used in the absence of a display screen, but can also be used in the case where a display screen is used.
- the method according to the invention comprises a step 1.1), between step 1) and step 2), consisting in acquiring, using the camera 6, and recording images identifying the use of the operating channel 8 (i.e. images of the distal end 9d of the sheath 9 and/or images of the extension of the operating channel 8) before using the medical endoscope 1.
- This step then makes it possible to acquire a reference image and record it.
- This recording can be carried out in the unit of treatment present in the tablet, or in the handle.
- the method then comprises a step 2.1), subsequent to step 2), consisting in comparing the reference image with the image of the use of the operating channel 8.
- the image identifying the use of the operating channel 8 and the reference image cover the same area: either the image identifying the use of the operating channel 8 and the reference image are images of the distal end 9d of the sheath 9, or the image identifying the use of the operating channel 8 and the reference image are images of the extension of the operating channel 8, or the image identifying the use of the operating channel 8 and the reference image are images of the distal end 9d of the sheath 9 and of the extension of the operating channel 8.
- the distal end 9d of the sheath 9 comprises a marking area 12
- the reference image then integrates this marking zone 12 and the comparison with the identification image of the use of the operator channel 8 will preferably be carried out at the level of this marking zone 12.
- the method makes it possible to automatically determine whether the operator channel 8 has been used.
- step 2.1 it may be envisaged that an alert signal, audible or luminous, is delivered when the image identifying the use of the operator channel 8 differs from the reference image.
- the method according to the invention comprises a step 3), subsequent to step 2.1) consisting in blocking the use of the medical endoscope when the reference image and the image identifying the use of the operating channel 8 are different.
- the blocking may consist in controlling the camera 6 to prohibit image acquisition. This blocking then makes it possible to reinforce safety for the patient.
- the method may further comprise a step 4) subsequent to step 3), of unlocking to allow the use of the medical endoscope even if the reference image and the image identifying the use of the operating channel 8 are different. This unlocking may be carried out by entering a name or a code for example.
- the invention also relates to a method for preparing a medical endoscope for reuse.
- the method according to the invention comprises the following steps: i) determining, according to the method of the invention, whether the operating channel 8 passing through an insertion tube 2 of a medical endoscope 1 as described above has been used, ii) completely or partially removing the external sheath 9 if the operating channel 8 has been used, to allow the reuse of the endoscope 1.
- the insertion tube 2 is covered by several sheaths 9, that is to say by an external sheath and at least one internal sheath, the external sheath and the at least one internal sheath are removed, totally or partially, if the operating channel 8 has been used.
- the external sheath, and where appropriate the internal sheath(s), are advantageously removed using the tearing system 13 described above.
- the method according to the invention may further comprise a step iii) subsequent to step ii), consisting of placing the medical endoscope 1 in sterile packaging in order to protect it from any contamination.
- a package that can be used in the context of the invention is notably described in patent application FR 22 09870.
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- Heart & Thoracic Surgery (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2301090A FR3145470B1 (fr) | 2023-02-06 | 2023-02-06 | Procédé pour déterminer si le canal opérateur d’un endoscope médical a été utilisé |
| PCT/FR2024/050145 WO2024165814A1 (fr) | 2023-02-06 | 2024-02-05 | Procédé pour déterminer si le canal opérateur d'un endoscope médical a été utilisé |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4661732A1 true EP4661732A1 (fr) | 2025-12-17 |
Family
ID=86329919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP24709802.3A Withdrawn EP4661732A1 (fr) | 2023-02-06 | 2024-02-05 | Procédé pour déterminer si le canal opérateur d'un endoscope médical a été utilisé |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4661732A1 (fr) |
| FR (1) | FR3145470B1 (fr) |
| WO (1) | WO2024165814A1 (fr) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5827177A (en) | 1997-02-18 | 1998-10-27 | Vision-Sciences, Inc. | Endoscope sheath assembly with isolating fabric sleeve |
| GB2336540A (en) | 1998-04-21 | 1999-10-27 | Alan James Purveur | Flexible endoscope cover |
| WO2006060457A2 (fr) | 2004-12-01 | 2006-06-08 | Vision-Sciences, Inc. | Gaine endoscopique equipee d'un systeme d'eclairage |
| WO2012112755A2 (fr) * | 2011-02-16 | 2012-08-23 | The General Hospital Corporation | Coupleur optique pour un endoscope |
| WO2014106510A1 (fr) | 2013-01-07 | 2014-07-10 | Ambu A/S | Boîtier de caméra d'endoscope comprenant un évidemment de guidage |
| CN106455920B (zh) | 2014-09-05 | 2018-08-07 | 奥林巴斯株式会社 | 内窥镜系统 |
| WO2020096893A1 (fr) * | 2018-11-05 | 2020-05-14 | Medivators Inc. | Identifiants dans une lumière de dispositif médical |
| WO2020243270A1 (fr) * | 2019-05-29 | 2020-12-03 | Stryker Corporation | Systèmes et procédés de nettoyage d'endoscope chirurgical peropératoire |
| WO2021182600A1 (fr) * | 2020-03-12 | 2021-09-16 | Hoya株式会社 | Dispositif de traitement d'informations, système d'inspection, programme et procédé de traitement d'informations |
-
2023
- 2023-02-06 FR FR2301090A patent/FR3145470B1/fr active Active
-
2024
- 2024-02-05 WO PCT/FR2024/050145 patent/WO2024165814A1/fr not_active Ceased
- 2024-02-05 EP EP24709802.3A patent/EP4661732A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR3145470B1 (fr) | 2025-01-31 |
| WO2024165814A1 (fr) | 2024-08-15 |
| FR3145470A1 (fr) | 2024-08-09 |
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