WO2020120821A1 - Dispositif endoscopique d'application de fluides - Google Patents

Dispositif endoscopique d'application de fluides Download PDF

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Publication number
WO2020120821A1
WO2020120821A1 PCT/ES2019/070845 ES2019070845W WO2020120821A1 WO 2020120821 A1 WO2020120821 A1 WO 2020120821A1 ES 2019070845 W ES2019070845 W ES 2019070845W WO 2020120821 A1 WO2020120821 A1 WO 2020120821A1
Authority
WO
WIPO (PCT)
Prior art keywords
tubular body
distal
plane
distal end
flange
Prior art date
Application number
PCT/ES2019/070845
Other languages
English (en)
Spanish (es)
Inventor
Javier MÁRQUEZ RIVAS
María José MAYORGA BUIZA
Mónica RIVERO GARVIA
Emilio GÓMEZ GONZÁLEZ
Original Assignee
Servicio Andaluz De Salud
Universidad De Sevilla
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 Servicio Andaluz De Salud, Universidad De Sevilla filed Critical Servicio Andaluz De Salud
Priority to ES202190013U priority Critical patent/ES1273474Y/es
Publication of WO2020120821A1 publication Critical patent/WO2020120821A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/02—Instruments for taking cell samples or for biopsy
    • A61B10/04—Endoscopic instruments

Definitions

  • the present invention belongs to the field of medicine, and more particularly to the field of endoscopic surgery.
  • the object of the present invention is an endoscopic device particularly designed to apply a fluid in a confined area within the surgical field.
  • This procedure has the drawback that the application of the fluid is not limited to the specific point where it is needed, but is distributed over a wider area around said point.
  • This lack of precision in fluid application can be critical, for example, when bio-repair or hemostatic materials are applied fluidly to brain, central nervous system, or vascular tissues. Indeed, in those cases the presence of material "detached" from the tip of a conventional tubular applicator can cause clusters of material or filaments that, eventually, can obstruct holes or conduits and thus cause thrombosis or heart attacks.
  • document EP2939602 describes a hemostatic agent applicator formed by a tube at the end of which a cup is arranged formed by a cylindrical wall with a closed upper end.
  • a cup is supported on the point where you want to apply the hemostatic agent and introduce it through the tube, its application is confined to the surface delimited by the cup.
  • this document describes a configuration consisting of an endoscopic device in which the cup is configured to be inserted through a catheter (see Fig. 14), thus allowing the fluid application surface to be confined in endoscopic surgical procedures.
  • the present invention solves the above problems thanks to an endoscopic fluid application device that comprises a tubular element whose distal end has flexible edges that protrude laterally from it.
  • the flanges fold elastically and allow the device to move longitudinally along the catheter.
  • the ridges unfold and revert to their original shape. In this way, they can be supported around the point where the fluid is to be applied to provide an excellent seal.
  • the endoscopic device of the present invention comprises a tubular body provided with a proximal hole at its proximal end and a distal hole at its distal end. Furthermore, the edge of the distal hole is contained in a plane that limits the distal end of the tubular body.
  • the device of the invention is characterized in that, in addition, it comprises a flexible rim essentially contained in said plane and protruding out from the edge of the distal hole. In this way, the device can be inserted and slid, with the flange folded, along the catheter whose diameter is slightly greater than the diameter of the tubular body but less than the diameter of the flange when viewed in the direction of a longitudinal axis of the tubular body.
  • the flexibility of the flange is such that it folds when the endoscopic device is inside the catheter, and reverts to its original shape when the distal end of the endoscopic device exits through the distal end of the catheter.
  • the flange can be made of any suitable material, such as rubber, plastic or other synthetic materials.
  • the length of the device it can vary depending on the length of the endoscope and the needs of each application.
  • the flexible flange can take any shape as long as it can rest as tightly as possible on the surface on which the fluid in question is to be applied.
  • the flexible flange may be straight. That is, it can be a completely flat rim capable of resting perfectly on a flat surface of the patient.
  • the flexible flange may comprise a curvature to improve sealing when it rests on said surface. It may be such a curvature that the flange has a convex distal face that, by resting on the surface in question, and thanks to the very flexibility of the material from which it is made, allows the maximum possible sealing against said surface to be achieved. That is, the flange could take a shape relatively similar to that of a suction cup.
  • the plane that limits the distal end of the tubular body forms an angle of 90 ° relative to a longitudinal axis of the tubular body. That is, in this configuration the device of the invention is particularly designed to rest perpendicularly against the surface on which the fluid in question is to be applied.
  • the flexible flange is in the form of an essentially flat circular ring surrounding the edge, also circular, of the distal hole of the endoscopic device.
  • the plane limiting the distal end of the tubular body forms an angle of between 30 ° and 90 °, for example 30 °, 45 ° or 60 °, relative to the longitudinal axis of the tubular body. That is, in this configuration, the device of the invention is designed to rest so that it forms an angle of 30 ° -90 ° against the surface on which the fluid in question is to be applied.
  • the flexible flange is essentially flat elliptical ring-shaped surrounding the edge, also elliptical, of the distal hole of the endoscopic device.
  • the user can choose the most convenient configuration in each case depending on the geometry.
  • a device with a distal end "cut” at 90 ° relative to to its longitudinal axis In cases where it is possible to support the distal end of the endoscopic device of the invention perpendicularly to the wall on which the fluid in question is to be applied, a device with a distal end "cut” at 90 ° relative to to its longitudinal axis. On the contrary, when the endoscopic device of the invention is to rest against the wall on which the fluid in question is to be applied, forming a certain angle of inclination, a device with a distal end "cut” at 30 ° is chosen, 45 ° or 60 ° relative to its longitudinal axis.
  • the tubular body comprises a graduated longitudinal scale.
  • the graduated scale essentially spans from an area adjacent to the proximal end to an area adjacent to the distal end.
  • the tubular body comprises protrusions projecting outwardly in a position adjacent to the proximal end.
  • they may be two prismatic protrusions essentially perpendicular to the tubular body of the endoscopic device of the invention. These projections will allow the user to easily rotate the endoscopic device of the invention to facilitate the operation of resting on the wall in which the fluid in question is to be applied.
  • the proximal end of the tubular body comprises a thread. It can be a standard luer thread for infusion systems. This thread will allow the device to be easily connected to a suitable infusion or injection system to drive the fluid in question.
  • Fig. 1 shows a perspective view of a first example of an endoscopic device according to the invention.
  • Fig. 2 shows a side view of the first example of endoscopic device represented in Fig. 1.
  • Fig. 3 shows a perspective view of a second example of endoscopic device according to the invention.
  • Fig. 4 shows a side view of the second example of endoscopic device represented in Fig. 3.
  • Figs. 1 and 2 show a first example of the present invention designed for the application of a fluid on a patient wall when the device (1) forms an angle of approximately 30 ° with the wall.
  • the device (1) comprises a hollow cylindrical body (2) having a proximal end (EP) and a distal end (ED).
  • the proximal end (EP) is the one that is closest to the medical professional who handles the device (1)
  • the distal end (ED) is the one that is furthest from the medical professional who handles the device (1).
  • the cylindrical body (2) naturally has a proximal hole (3) at its proximal end (EP) and a distal hole (4) at its distal end (ED).
  • the proximal hole (3) is contained in a plane that forms 90 ° with the longitudinal axis (EL) of the cylindrical body (2), and therefore has a circular shape.
  • a luer thread (7) arranged at the proximal end (EP) allows the device to be connected to a fluid delivery system, such as an infusion system, a syringe, etc.
  • the device (1) of this example has two projections (6) arranged in a position adjacent to its proximal end (EP), next to the thread (7). These two projections have a square prism shape and protrude perpendicular to the longitudinal axis (EL) of the cylindrical body (2), thus allowing the medical professional to obtain a good grip on the device (1) to rotate it during the procedure in case if necessary.
  • the term "essentially contained" in the (TT) plane referring to the flat elliptical ring that constitutes the flexible flange (5), means that the flexible flange (5) may have some parts that are not strictly flat and, therefore, , are outside this plane (TT) although in any case near them. This can occur, for example, when the flexible flange (5) has a small curvature to improve the seal when it rests on the surface where the fluid in question is to be applied.
  • Figs. 3 and 4 show a second example of endoscopic device (1) according to the present invention designed for the application of a fluid on a wall of the patient when the device (1) forms approximately 90 ° with the wall.
  • the same reference numbers are used to indicate elements similar to those in the first example.
  • the distal hole (4) is contained in a plane (TT) that is perpendicular to the longitudinal axis (EL) of the cylindrical body (2) of the device (1) of the invention. Therefore, the distal hole (4) is circular. From the edges delimiting said distal hole (4) there protrudes, essentially contained in plane (TT), a flexible flange (5) that in this example takes the form of an essentially flat circular ring.
  • a flexible flange (5) which adopts a shape relatively similar to a suction cup, in which a small cavity is generated in the most distal face, is more clearly seen. This small curvature makes it possible to further improve the sealing characteristics of the endoscopic device (1) when it rests on the wall to which the fluid in question is to be applied.

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Pathology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Endoscopes (AREA)

Abstract

La présente invention concerne un dispositif (1) endoscopique d'application de fluides qui comprend un corps tubulaire (2) doté d'un orifice proximal (3) sur son extrémité proximale (EP) et un orifice distal (4) sur son extrémité distale (ED), le bord de l'orifice distal (4) étant contenu dans un plan (π) qui limite l'extrémité distale (ED) du corps tubulaire (2). Ce dispositif (1) comprend également un rebord (5) souple essentiellement contenu dans ledit plan (π) et qui dépasse vers l'extérieur du bord de l'orifice distal (4). Ainsi le dispositif (1) peut être inséré et peut glisser, avec le rebord (5) plié, le long d'un cathéter dont le diamètre est légèrement supérieur au diamètre du corps tubulaire (2) mais inférieur au diamètre du rebord (5) quand on l'observe dans la direction d'un axe lonitudinal (EL) du corps (2) tubulaire.
PCT/ES2019/070845 2018-12-14 2019-12-13 Dispositif endoscopique d'application de fluides WO2020120821A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES202190013U ES1273474Y (es) 2018-12-14 2019-12-13 Dispositivo endoscópico de aplicación de fluidos

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201831211 2018-12-14
ESP201831211 2018-12-14

Publications (1)

Publication Number Publication Date
WO2020120821A1 true WO2020120821A1 (fr) 2020-06-18

Family

ID=71075947

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2019/070845 WO2020120821A1 (fr) 2018-12-14 2019-12-13 Dispositif endoscopique d'application de fluides

Country Status (2)

Country Link
ES (1) ES1273474Y (fr)
WO (1) WO2020120821A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5554151A (en) * 1994-09-27 1996-09-10 United States Surgical Corporation Specimen retrieval container
US20040162572A1 (en) * 2003-02-13 2004-08-19 Sauer Jude S. Instrument for surgically cutting tissue and method of use

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5554151A (en) * 1994-09-27 1996-09-10 United States Surgical Corporation Specimen retrieval container
US20040162572A1 (en) * 2003-02-13 2004-08-19 Sauer Jude S. Instrument for surgically cutting tissue and method of use

Also Published As

Publication number Publication date
ES1273474Y (es) 2021-10-18
ES1273474U (es) 2021-07-09

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