WO2019075541A1 - Trocart pour l'insertion d'instruments chirurgicaux, méthode d'utilisation du trocart et kit comprenant ce trocart - Google Patents

Trocart pour l'insertion d'instruments chirurgicaux, méthode d'utilisation du trocart et kit comprenant ce trocart Download PDF

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Publication number
WO2019075541A1
WO2019075541A1 PCT/BR2018/050387 BR2018050387W WO2019075541A1 WO 2019075541 A1 WO2019075541 A1 WO 2019075541A1 BR 2018050387 W BR2018050387 W BR 2018050387W WO 2019075541 A1 WO2019075541 A1 WO 2019075541A1
Authority
WO
WIPO (PCT)
Prior art keywords
cannula
trocar
inner cannula
surgical instruments
medical devices
Prior art date
Application number
PCT/BR2018/050387
Other languages
English (en)
Portuguese (pt)
Inventor
Julio FRIAS DIAS
Laercio GOMES LOURENÇO
Paulo Roberto WALTER FERREIRA
Edison MARTINS DA SILVA JUNIOR
Ivan MIRANDA
Marcelo SARAIVA DOS SANTOS
Original Assignee
Bhio Supply Indústria E Comércio De Equipamentos Médicos Ltda
Sociedade Beneficente Israelita Brasileira Hospital Albert Einstein
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 Bhio Supply Indústria E Comércio De Equipamentos Médicos Ltda, Sociedade Beneficente Israelita Brasileira Hospital Albert Einstein filed Critical Bhio Supply Indústria E Comércio De Equipamentos Médicos Ltda
Publication of WO2019075541A1 publication Critical patent/WO2019075541A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
    • A61M1/28—Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
    • A61M1/285—Catheters therefor
    • 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
    • A61B1/313—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 for introducing through surgical openings, e.g. laparoscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites

Definitions

  • the present invention relates to a trocar for the insertion of at least one surgical instrument comprising at least one outer cannula and an inner cannula rotatable therebetween.
  • the present invention further relates to a method of using the trocar for insertion of at least one surgical instrument and also to a kit comprising at least one trocar for insertion of at least one surgical instrument.
  • patent document CN203763560 discloses a peritoneal dialysis catheter provided with a guidewire, a securing device and a camera, configured to be secured to the patient's skin through said securing device.
  • WO2015146652 discloses a device provided with a camera, a lighting system and a peritoneal dialysis catheter configured with a certain degree of curvature guiding the insertion of the device into the patient.
  • CN203935500 discloses a visual catheter guidewire for peritoneal dialysis, wherein said guidewire is configured as a camera and USB connector, wherein the image captured by the camera is directly displayed on a display. It is not revealed, therefore, the characteristic of having means for easy and efficient association and selective disassociation of instruments used in the procedure performed.
  • a trocar for at least minimally invasive procedures is not observed in the prior art, configured so that the instrumentalities used in these procedures can be easily, safely, rapidly and selectively associated with and disassociated from said trocar during said procedures.
  • the present invention further comprises a method of using said trocar comprising insertion and withdrawal of surgical instruments from the trocar without it being disassociated from the patient's body.
  • the implementation and use of a trocar and method as proposed enables surgical procedures to be performed more effectively, without the need for of disassociating said trocar several times and without, therefore, excessively injuring the patient submitted to these procedures.
  • a second object of the present invention is to provide a trocar made with moving parts relative to each other.
  • a third object of the present invention is to provide a trocar configured with at least one internal trait.
  • a fourth objective of the present invention is to provide a trocar configured with at least one internal hole.
  • a fifth aim of the present invention is to provide a trocar which allows insertion and withdrawal of at least one surgical instrument without the need to disassociate said trocar from a patient's body.
  • a trocar composed of at least one outer cannula having a first outer end, a second outer end and an outer cannula, and an inner cannula having a first inner end, a second the inner cannula is configured to receive the inner cannula therein and the trocar being configured so that the outer cannula and the inner cannula are rotatable relative to each other selectively allowing the insertion of at least one inner cannula, a surgical instrument in the inner cannula. Also discussed is a method of using the trocar for insertion of at least one surgical instrument, wherein the surgical instruments can be selectively inserted and removed from the trocar without the said trocar losing contact with the patient's skin (without to be associated).
  • kits for insertion of surgical instruments comprising at least one trocar.
  • Figure 1 is a side view of the proposed trocar
  • Figure 2 is a front view of the proposed trocar
  • FIG. 3 is a perspective view of the proposed trocar
  • Figure 4 is a front view of the proposed trocar.
  • Figure 5 is a perspective view of the proposed trocar.
  • the present invention relates to a trocar 100. More specifically, a trocar 100 for insertion of at least one of surgical instruments and medical devices, wherein the trocar 100 comprises a cannula 20 and an inner cannula 30.
  • this trocar 100 is configured to be used in intracavitary or intraperitoneal procedures, including its use in clinical diagnostics, surgical diagnostics, surgical interventions, drug therapy, among others.
  • Intraperitoneal or intraperitoneal procedures are understood to mean invasive or minimally invasive procedures performed on the body of a patient such as peritoneal dialysis, where penetration into the abdominal cavity and peritoneum region is required through a specific surgical instrument.
  • this feature is not to be understood as a limiting factor for the present invention, such that said trocar 100 may be used in other applications including, for example, a collection of material for further analysis (biopsy).
  • the trocar 100 may be comprised as a device configured for the selective insertion of at least one of surgical instruments and medical devices, wherein at least one of surgical instruments and medical devices is configured such as tubes, tubes being flexible, semi-flexible or rigid, monolumen or multi-lumens. More specifically, at least one of surgical instruments and medical devices is preferably a peritoneal dialysis catheter in the abdominal region, but other instruments may be used, such as a flexible clamp together for tissue extraction.
  • the trocar 100 is to be understood as an association between the outer cannula 20 and the inner cannula 30.
  • the outer cannula 20 preferably has to engage the inner cannula 30, partially or totally.
  • this association occurs in such a way that the outer cannula 20 and the inner cannula 30 are rotatable relative to one another, i.e., rotation of the outer and inner cannulae 30 selectively aligns and misalignes an external trait 24 of the outer cannula 20 relative to at least one inner groove 33 of the inner cannula 30.
  • the outer cannula 20 is provided with a first outer end 21, a second outer end 22 and the outer groove 24, wherein the outer groove 24 extends longitudinally from the first outer end 21 to the second outer end 22.
  • the inner cannula 30 is provided with a first inner end 31, a second inner end 32 and the at least one inner slot 33, less an inner tear 33 extends longitudinally from the first inner end 31 to the second inner end 32 and wherein the outer cannula 20 is configured to receive the inner cannula 30 therein.
  • the inner cannula 30 has at least one internal tear 33. It should be understood, therefore, that more than one internal tear 33 may be provided and thus more than one surgical instrument or medical device may be inserted in the trocar 100.
  • the insertion of at least one surgical instrument and medical devices is achieved by aligning the outer tear 24 of the outer cannula 20 with respect to at least one internal tear 33 of the inner cannula 30.
  • the configuration and confection of said trocar 100 with an outer cannula 20 provided with outer tear 24 and inner cannula 30 provided with inner tear 33 allows at least one of surgical instruments and medical devices to be selectively in- serrated and withdrawn from trochar 100 without it needing to be disengaged from a patient's body, as will be discussed below.
  • the first outer end 21 and the first inner end 31 are configured to form an incision end 41, wherein this incision end 41 is formed such as a wedge.
  • the incision edge 41 is configured with an angle in the range of 0 to 45 °. More specifically, said angle is 30 ⁇ °, however, it is to be understood that this is a constructive detail and should not be construed as a limitation of the present invention. Thus, it should also be understood that in alternative embodiments, other angles can be configured to cut said end 41, both within the range of 0 to 45 ° and beyond.
  • the second outer end 22 and the second inner end 32 are configured to form a guide end 42, wherein said guide end 42 is opposite the cutting end 41 .
  • the trocar 100 is further provided with a driver 23, as shown in Figure 5.
  • This driver 23 is disposed on at least one of the outer and inner cannulae 30 and is to be understood as a handle.
  • the driver 23 comprises a perpendicular projection of at least one of the outer and inner cannulae 30 and is fabricated with a roughened surface (rugged element) in order to facilitate the handling of the trocar 100 by an operator .
  • the driver 23 may comprise a non-perpendicular projection of at least one of the outer and inner cannulae 30, i.e. the angle formed between said driver 23 and at least one of the outer and inner cannulae 20 is alternately different from 90 ⁇ °.
  • the making of said driver 23 may be with a non-rough (smooth) surface. If necessary, the handle 23 may be provided with an additional removable cover, made of rough material so that the handling of the trocar 100 is optimized.
  • the outer cannula 20 and the inner cannula 30 are rotatable relative to one another. In a preferred embodiment, this rotation occurs by selectively activating the ie the actuation of the handle 23 causes at least one of the outer and inner cannulae 20 to move (rotate) relative to the other.
  • the inner cannula 30 of the trocar 100 is provided with at least one internal hole 34.
  • This internal hole 34 is preferably formed in a manner parallel to the feature internal 33.
  • the trocar 100 may alternatively be provided with more than one internal bore 34, parallel or not to the inner feature 33.
  • the at least one internal hole 34 is made up such as a duct.
  • the at least one internal hole 34 is configured to receive therein components and equipment which aid in the procedure in which the trocar 100 will be used.
  • the internal bore 34 is configured to receive, for example, a camera 51 configured to guide at least one of surgical instruments and medical devices.
  • components and equipment may also be inserted into the at least one internal bore 34.
  • These components and equipment are, for example, flexible, rigid and flexible biopsy, flexible, flexible, , among others.
  • alignment of the outer tear 24 of outer cannula 20 with respect to at least one inner tear 33 of inner cannula 30 is performed so that at least one of surgical instruments and medical devices is selectively inserted and removed from inner trocar 100 cannula 100.
  • the outer cannula 20 and the inner cannula 30 are rotated relative to each other to misalign said outer cannula 24 of the outer cannula 20 in relation to said at least one internal tear 33 of the inner cannula 30. This is to prevent at least one of surgical instruments and medical devices from disengaging (releasing, exiting or detaching) from the trocar 100.
  • the selective removal of at least one of surgical instruments and medical devices from the inner cannula 30 of the trocar 100 is performed.
  • the alignment of the outer tear 24 of the outer cannula 20 with respect to at least one inner tear 33 of the inner cannula 30 is performed so that at least one of the instruments and medical devices is decoupled (loose or detached) .
  • the trocar 100 is made of any rigid material, preferably at least one of metal, plastic or thermoplastic materials. More specifically, the trocar 100 is preferably made of at least one of the following materials: stainless steel, titanium, aluminum, polyphenylsulfone (PPSF, PPSU), polyphenylene sulfide (PPS), polycarbonates, polyvinylchloride (PVC) and polymeric composites preferably rigid, such as a carbon / carbon composite.
  • PPSF polyphenylsulfone
  • PPS polyphenylene sulfide
  • PVC polyvinylchloride
  • polymeric composites preferably rigid, such as a carbon / carbon composite.
  • the present invention may alternatively be made from other materials which maintain the features proposed herein for such trocar 100, such as composite polymeric, metal and / or ceramic composite materials with reinforcing materials of including organic fibers, glass, carbon, titanium, resins and also with structured nanocomposites.
  • the present invention further comprises a method of using said trocar 100, further comprising means for inserting at least one of surgical instruments and medical devices.
  • the method of using the trocar 100 for insertion of surgical instruments is initiated by the step of rotating the outer cannula 20 and the inner cannula 30 relative to one another.
  • This initial step is in order to align the outer tear 24 of the outer cannula 20 with respect to at least one internal tear 33 of the inner cannula 30, enabling the insertion of at least one of surgical instruments and / or medical devices in the trocarte 100.
  • the outer cannula 20 and the inner cannula 30 are rotated relative to each other.
  • the purpose of this step is to misalign the outer tear 24 of the outer cannula 20 relative to at least one internal tear 33 of the inner cannula 30 to prevent the at least one of surgical instruments and medical devices from disengaging (loosen, detachable) portion of the trocar 100.
  • the trocar 100 may be used in the desired procedures in such a way that it is disposed in contact with the patient's skin, associating with the epithelial tissue and, consequently, the patient's body.
  • At least one of surgical instruments and medical devices is then removed (decoupled, released, or detached) from trochar 100 without trocar 100 losing contact with the patient's skin.
  • at least one of surgical instruments and medical devices is disassociated without the need for the trocar 100 to be disassociated from the patient's body.
  • a trocar 100 is therefore contemplated for the insertion of at least one of surgical instruments and medical devices, wherein the trocar 100 comprises an outer cannula 20 and an inner cannula 30, the trocar 100 being made in such a way that it can be used in a plu- of preferential procedures, but not exclusively intracavitary and intraperitoneal procedures.
  • the present invention provides a versatile trocar 100 and which can be used in procedures such as peritoneal dialysis, clinical diagnoses, surgical diagnoses, surgical interventions, drug-using therapies, together with various instruments, such as such as tubes in general, catheters and tweezers, for example. Its configuration allows at least one of surgical instruments and medical devices to be advantageously and selectively inserted and withdrawn from said trocar 100 without it being disassociated from the patient's body.
  • a method of using said trocar 100 comprising the features of the present invention in which the insertion and withdrawal of at least one of surgical instruments and medical devices therein is performed by selective rotation of the cannula outer portion 20 and the inner cannula 30 relative to one another to align and misalign the outer tear 24 of the outer cannula 20 relative to at least one internal tear 33 of the inner cannula 30.
  • at least one of surgical instruments and medical devices is advantageously and selectively inserted and withdrawn from said trocar 100 without it being disassociated from the patient's body.

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

Abstract

La présente invention concerne un trocart (100), une méthode d'utilisation dudit trocart et un kit pour l'insertion d'instruments chirurgicaux et/ou de dispositifs médicaux comprenant au moins un trocart (100), ledit trocart (100) comportant au moins une canule extérieure (20) présentant une première extrémité extérieure (21), une seconde extrémité extérieure (22) et une ouverture extérieure (24), et une canule intérieure (30) présentant une première extrémité intérieure (31), une seconde extrémité intérieure (32) et au moins une ouverture intérieure (33), le trocart (100) étant conçu de manière que la canule extérieure (20) et la canule intérieure (30) puissent être sélectivement entraînées en rotation l'une par rapport à l'autre, alignant et désalignant l'ouverture extérieure (24) de la canule extérieure (20) par rapport à au moins une ouverture intérieure (33) de la canule intérieure (30).
PCT/BR2018/050387 2017-10-20 2018-10-19 Trocart pour l'insertion d'instruments chirurgicaux, méthode d'utilisation du trocart et kit comprenant ce trocart WO2019075541A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BRBR1020170226360 2017-10-20
BR102017022636-0A BR102017022636A2 (pt) 2017-10-20 2017-10-20 Trocarte para a inserção de instrumentais cirúrgicos, método de utilização do trocarte e kit compreendendo o trocarte

Publications (1)

Publication Number Publication Date
WO2019075541A1 true WO2019075541A1 (fr) 2019-04-25

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WO (1) WO2019075541A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5944691A (en) * 1996-11-04 1999-08-31 Cordis Corporation Catheter having an expandable shaft
JP2011104378A (ja) * 2009-11-18 2011-06-02 Tyco Healthcare Group Lp ポート固定デバイス
GB2498162A (en) * 2012-04-17 2013-07-03 Indian Wells Medical Inc Steerable transseptal punch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5944691A (en) * 1996-11-04 1999-08-31 Cordis Corporation Catheter having an expandable shaft
JP2011104378A (ja) * 2009-11-18 2011-06-02 Tyco Healthcare Group Lp ポート固定デバイス
GB2498162A (en) * 2012-04-17 2013-07-03 Indian Wells Medical Inc Steerable transseptal punch

Also Published As

Publication number Publication date
BR102017022636A2 (pt) 2019-05-07

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