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WO2013190152A1 - Laparoscopic surgical instrument - Google Patents

Laparoscopic surgical instrument Download PDF

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Publication number
WO2013190152A1
WO2013190152A1 PCT/ES2013/000139 ES2013000139W WO2013190152A1 WO 2013190152 A1 WO2013190152 A1 WO 2013190152A1 ES 2013000139 W ES2013000139 W ES 2013000139W WO 2013190152 A1 WO2013190152 A1 WO 2013190152A1
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WO
WIPO (PCT)
Prior art keywords
base body
surgical instrument
laparoscopic surgical
protective
instrument according
Prior art date
Application number
PCT/ES2013/000139
Other languages
Spanish (es)
French (fr)
Inventor
Igacio ZAPARDIEL GUTIERREZ
Javier DE SANTIAGO GARCIA
Original Assignee
Fundación Para La Investigación Biomédica Del Hospital Universitario La Paz
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 Fundación Para La Investigación Biomédica Del Hospital Universitario La Paz filed Critical Fundación Para La Investigación Biomédica Del Hospital Universitario La Paz
Publication of WO2013190152A1 publication Critical patent/WO2013190152A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
    • A61B10/02—Instruments for taking cell samples or for biopsy
    • A61B10/04—Endoscopic instruments, e.g. catheter-type instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/42—Gynaecological or obstetrical instruments or methods
    • A61B17/4241—Instruments for manoeuvring or retracting the uterus, e.g. during laparoscopic surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/00234—Surgical instruments, devices or methods for minimally invasive surgery
    • A61B2017/00349—Needle-like instruments having hook or barb-like gripping means, e.g. for grasping suture or tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B17/32—Surgical cutting instruments
    • A61B2017/320064—Surgical cutting instruments with tissue or sample retaining means

Definitions

  • the object of the present invention relates in general to a laparoscopic surgical instrument, and more particularly to a surgical instrument especially suitable as an aid in the removal of tumors, parts or pathogenic organs, such as in the practice of a hysterectomy, without ruling out other endogenous surgical operations.
  • document WO 201 1/053648 deals with a system and method for performing a biopsy of a tissue located remotely within a patient.
  • the system comprises an outer cutting member, an elongated inner member movably disposed within the outer member, and a tensile member of a tissue to be fixed in a body tissue and extracting a sample of the tissue within the outer cutting member.
  • the present invention provides a laparoscopic surgical instrument comprising an elongated base body in a longitudinal direction, a handle fixed to a proximal end of said base body, and a surgical grasping tool fixed to a distal end of the base body.
  • a protective bushing is mounted so that it can slide along an outer surface of the base body between a distal protective position, in which said protective bushing covers said surgical gripping tool, and a proximal working position, in which the protective sleeve exposes the surgical gripping tool, and an elastic element is configured and arranged so that it is deformed and stores energy when the protective sleeve is moved from said distal protection position to said proximal position of work, and that releases such stored energy to push the protective bushing back towards the distal protection position.
  • the protective cap remains in the distal protection position under the effect of the tension of the elastic element covering the surgical gripping tool and preventing it from being hooked undesirably with tissues. healthy of the patient's body.
  • the distal end of the laparoscopic surgical instrument makes contact with the tumor, part or pathogenic organ in which it is desired to perform, for example, a hysterectomy
  • the surgeon continues to push the instrument that is grasped by the grip and the surgical grasping tool penetrates in the tumor, part or pathogenic organ while the protective cap is retained by it, with the result that the protective cap moves towards the proximal working position against the force of the elastic element allowing the penetration of the surgical gripping tool.
  • the elastic element pushes the protective cap back into the distal protection position covering the surgical gripping tool and facilitating the removal of the elongated base body inside the patient.
  • Fig. 1 is a longitudinal sectional view of a laparoscopic surgical instrument according to an embodiment of the present invention, in a protective situation of the gripping tool;
  • Fig. 2 is a longitudinal sectional view of the laparoscopic surgical instrument in an operative situation
  • Fig. 3 is an enlarged enlarged view of the circled detail of Fig. 1; and Figs. 4 and 5 are schematic views illustrating an assembly sequence of the laparoscopic surgical instrument.
  • the laparoscopic surgical instrument of the present invention comprises, according to an embodiment shown in Figs. 1 and 2, a longitudinally elongated base body 1 having a proximal end 1a on which a handle 2 is fixed, and a distal end 1 b on which a surgical gripping tool 3 is fixed.
  • said surgical gripping tool 3 has a spiral configuration as a corkscrew, although other shapes are within the scope of the present invention.
  • a protective sleeve 4 installed so that it can move longitudinally on an outer surface of the distal end of said base body 1 between a distal protection position, in which The protective sleeve 4 covers the surgical grip 3 (Fig. 1) and a proximal working position, in which the protective sleeve 4 discovers and exposes the surgical grip 3 (Fig. 2).
  • said base body 1 has the peculiarity of being longitudinally open by means of a pair of longitudinal grooves 9, (although in some embodiments only one would be sufficient) which have one end open at the proximal end 1a of the base body 1 and a closed end near the distal end 1b of the base body 1.
  • the protective sleeve 4 has on its proximal face a stop 7 constituted by a circular portion concentric to the protective sleeve 4 , and of diameter substantially smaller than the inner diameter of the protective sleeve 4 and slightly smaller than an inner diameter of the base body 1, which is connected to the protective sleeve 4 by a pair of appendages 8 (or alternatively a number of appendages equivalent to the number of longitudinal grooves 9).
  • the protective sleeve 4 is formed by two or more parts that can be coupled together, at least one of which comprises the appendix 8 configured to be inserted through the longitudinal groove 8 and connected to said stop 7, which in this case is a body separated from the parts that form the bushing.
  • the protective sleeve 4 is a cylindrical body and the stop 7 is a separate body connected to the protective sleeve 4 by one or more fasteners, such as screws, rivets or stems, installed from the outside. , which constitute the aforementioned appendices 8.
  • the laparoscopic surgical instrument further comprises a rod 10 inserted in the base leather 1.
  • This rod 10 has a proximal end connected to said handle 2, and a flat distal end constituting a stop 6 that contacts an elastic element 5, such as compression coil spring 5, housed within the base body between said stop 6 formed at the distal end of the rod 10 and the other stop 6 attached to the protective sleeve 4.
  • an elastic element 5 such as compression coil spring 5 housed within the base body between said stop 6 formed at the distal end of the rod 10 and the other stop 6 attached to the protective sleeve 4.
  • the protective sleeve 4 is inserted over the proximal end 1a of the base body 1 so that the appendages 8 are inserted into the longitudinal grooves 9, and then slide the protective sleeve 4 along the base body 1 from the proximal end 1a to the distal end 1b thereof with the appendages 8 sliding along the grooves 9 to the distal protection position in which the protective sleeve 4 covers the useful 3.
  • the protective sleeve 4 is pushed by the elastic element 5 towards the distal protection position (Fig. 1) and can be moved towards the proximal working position (Fig. 2) against the force produced by the compression of the elastic element 5.
  • a detail that is illustrated enlarged in Fig. 3 has been indicated with a circle with a certain optional attachment constituted by a bushing 13 connected to the handle 2 and arranged externally around the external thread thread 12.
  • This bushing 13 serves to reinforce the threaded coupling between the base body 1 and the handle 2 preventing the proximal end 1a of the base body 1 from being radially flared because the longitudinal grooves 9 of the base body 1 are opened at this proximal end 1a.
  • the coupling of the handle 2 to the base body 1 could be carried out with some other arrangement of known type, such as a bayonet device or by the provision of a flange or pressure flange type system, such as that used in the caps of some useful writers.
  • the base body 1 of the laparoscopic surgical instrument of the present invention is introduced into the body of a patient through, for example, a previously made incision, until reaching the pathogenic element, for example a myoma (not shown) ).
  • the corkscrew surgical tool 3 in the form of a corkscrew will have been covered by the protective cap 4 in its distal protection position, thus protecting the neighboring tissues from being damaged by the sharp end of the surgical gripping tool 3.
  • the surgical grip 3 will penetrate it while the protective cap 4 will be retained and will slide towards its proximal working position in the direction of the arrow of Fig. 2, compressing the elastic element 5. Then the process of operation of the diseased element or part of the patient can begin by the surgical grip tool 3.
  • the base body 1 of the laparoscopic surgical instrument of the present invention can be removed from the interior of the patient and the protective sleeve 4 will return to its distal protection position covering the surgical gripping tool 3 being pushed by the elastic element 5.

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Gynecology & Obstetrics (AREA)
  • Pregnancy & Childbirth (AREA)
  • Reproductive Health (AREA)
  • Surgical Instruments (AREA)

Abstract

The invention relates to a laparoscopic surgical instrument comprising a base body (1) lengthened in a longitudinal direction, a handle (2) fixed to the proximal end of the base body (1), and a gripping surgical tool (3) fixed to the distal end of the base body (1). A protecting tip (4) is mounted in such a way that it can slide along an outer surface of the base body (1), between a distal protection position wherein said protecting tip (4) covers the gripping tool (3), and a proximal working position wherein the protecting tip (4) leaves the gripping tool (3) exposed. A spring (5) is configured and arranged in such a way that it is deformed and stores energy when the protecting tip (4) is moved from said distal protection position to said proximal working position, and frees said energy in order to push the protecting tip (4) back to the distal protection position.

Description

INSTRUMENTO QUIRÚRGICO LAPAROSCÓPICO  LAPAROSCOPIC SURGICAL INSTRUMENT
Campo de la invención Field of the Invention
El objeto de la presente invención se refiere en general a un instrumento quirúrgico laparoscópico, y más en particular a un instrumento quirúrgico especialmente adecuado como ayuda en la extirpación de tumores, partes u órganos patógenos, tal como en la práctica de una histerectomía, sin descartar otras operaciones quirúrgicas endógenas. Antecedentes de la invención  The object of the present invention relates in general to a laparoscopic surgical instrument, and more particularly to a surgical instrument especially suitable as an aid in the removal of tumors, parts or pathogenic organs, such as in the practice of a hysterectomy, without ruling out other endogenous surgical operations. Background of the invention
A este respecto se conoce el documento WO 201 1/053648 que trata de un sistema y método para la realización de una biopsia de un tejido de localización remota dentro de un paciente. El sistema comprende un miembro exterior de corte, un miembro interior alargado dispuesto móvilmente dentro del miembro exterior, y un miembro de tracción de un tejido para fijarse en un tejido corporal y extraer una muestra del tejido dentro del miembro exterior de corte.  In this regard, document WO 201 1/053648 is known, which deals with a system and method for performing a biopsy of a tissue located remotely within a patient. The system comprises an outer cutting member, an elongated inner member movably disposed within the outer member, and a tensile member of a tissue to be fixed in a body tissue and extracting a sample of the tissue within the outer cutting member.
Aun cuando el sistema del documento citado pueda contener determinados elementos mecánicos que, por su forma geométrica tengan un cierto parecido con el instrumento que se preconiza, hay que recalcar que la finalidad de ambos es completamente distinta: en el caso del antecedente se trata de un mecanismo para realizar una biopsia, como ya se indicó; mientras que el instrumento quirúrgico laparoscópico de la presente invención es un instrumento de ayuda para una extirpación, por lo que en éste existen, aparte de los mencionados elementos parecidos, otros elementos distintos y adecuados para el fin que se propone.  Even if the cited document system may contain certain mechanical elements that, due to their geometric shape, have a certain resemblance to the instrument that is recommended, it should be emphasized that the purpose of both is completely different: in the case of the antecedent it is a mechanism to perform a biopsy, as already indicated; while the laparoscopic surgical instrument of the present invention is an aid for removal, so that there are, apart from the aforementioned similar elements, other elements different and suitable for the intended purpose.
Breve descripción de la invención Brief Description of the Invention
La presente invención aporta un instrumento quirúrgico laparoscópico que comprende un cuerpo base alargado en una dirección longitudinal, una empuñadura fijada a un extremo proximal de dicho cuerpo base, y un útil quirúrgico de agarre fijado a un extremo distal del cuerpo base. Un casquillo protector está montado de manera que puede deslizar a lo largo de una superficie exterior del cuerpo base entre una posición distal de protección, en la que dicho casquillo protector cubre dicho útil quirúrgico de agarre, y una posición proximal de trabajo, en la que el casquillo protector deja expuesto el útil quirúrgico de agarre, y un elemento elástico está configurado y dispuesto de manera que es deformado y almacena energía cuando el casquillo protector es desplazado desde dicha posición distal de protección hacia dicha posición proximal de trabajo, y que libera dicha energía almacenada para empujar al caequillo protector de regreso hacia la posición distal de protección. The present invention provides a laparoscopic surgical instrument comprising an elongated base body in a longitudinal direction, a handle fixed to a proximal end of said base body, and a surgical grasping tool fixed to a distal end of the base body. A protective bushing is mounted so that it can slide along an outer surface of the base body between a distal protective position, in which said protective bushing covers said surgical gripping tool, and a proximal working position, in which the protective sleeve exposes the surgical gripping tool, and an elastic element is configured and arranged so that it is deformed and stores energy when the protective sleeve is moved from said distal protection position to said proximal position of work, and that releases such stored energy to push the protective bushing back towards the distal protection position.
Así, mientras el cuerpo base alargado es introducido al interior del paciente, el casquillo protector permanece en la posición distal de protección bajo el efecto de la tensión del elemento elástico cubriendo el útil quirúrgico de agarre y evitando que éste se enganche de manera indeseada con tejidos sanos del cuerpo del paciente. Cuando el extremo distal del instrumento quirúrgico laparoscópico hace contacto con el tumor, parte u órgano patógeno en el que se desea practicar, por ejemplo, una histerectomía, el cirujano sigue empujando el instrumento que tiene agarrado por la empuñadura y el útil quirúrgico de agarre penetra en el tumor, parte u órgano patógeno mientras que el casquillo protector es retenido por el mismo, con el resultado que el casquillo protector se desplaza hacia la posición proximal de trabajo contra la fuerza del elemento elástico permitiendo la penetración del útil quirúrgico de agarre.  Thus, while the elongated base body is introduced into the patient, the protective cap remains in the distal protection position under the effect of the tension of the elastic element covering the surgical gripping tool and preventing it from being hooked undesirably with tissues. healthy of the patient's body. When the distal end of the laparoscopic surgical instrument makes contact with the tumor, part or pathogenic organ in which it is desired to perform, for example, a hysterectomy, the surgeon continues to push the instrument that is grasped by the grip and the surgical grasping tool penetrates in the tumor, part or pathogenic organ while the protective cap is retained by it, with the result that the protective cap moves towards the proximal working position against the force of the elastic element allowing the penetration of the surgical gripping tool.
En cuanto el útil quirúrgico de agarre es extraído del tumor, parte u órgano patógeno en el que se ha estado operando, el elemento elástico empuja el casquillo protector de nuevo hacia la posición distal de protección cubriendo el útil quirúrgico de agarre y facilitando la extracción del cuerpo base alargado del interior del paciente.  As soon as the surgical gripping tool is removed from the tumor, part or pathogenic organ in which it has been operating, the elastic element pushes the protective cap back into the distal protection position covering the surgical gripping tool and facilitating the removal of the elongated base body inside the patient.
Breve descripción de los dibujos Brief description of the drawings
Las anteriores y otras características y ventajas resultarán más evidentes a partir de la siguiente descripción de un ejemplo de realización con referencia a los dibujos adjuntos, en los que:  The foregoing and other features and advantages will become more apparent from the following description of an exemplary embodiment with reference to the accompanying drawings, in which:
la Fig. 1 es una vista en sección longitudinal de un instrumento quirúrgico laparoscópico de acuerdo con una realización de la presente invención, en una situación de protección del útil de agarre;  Fig. 1 is a longitudinal sectional view of a laparoscopic surgical instrument according to an embodiment of the present invention, in a protective situation of the gripping tool;
la Fig. 2 es una vista en sección longitudinal del instrumento quirúrgico laparoscópico en una situación operativa;  Fig. 2 is a longitudinal sectional view of the laparoscopic surgical instrument in an operative situation;
la Fig. 3 es una vista ampliada ampliación del detalle circundado de la Fig. 1 ; y las Figs. 4 y 5 son vistas esquematizadas que ilustran una secuencia de montaje del instrumento quirúrgico laparoscópico.  Fig. 3 is an enlarged enlarged view of the circled detail of Fig. 1; and Figs. 4 and 5 are schematic views illustrating an assembly sequence of the laparoscopic surgical instrument.
Descripción detallada de una realización preferida de la invención Detailed description of a preferred embodiment of the invention
El instrumento quirúrgico laparoscópico de la presente invención comprende, según una realización mostrada en las Figs. 1 y 2, un cuerpo base 1 de configuración alargada longitudinalmente que tiene un extremo proximal 1a en el que está fijada una empuñadura 2, y un extremo distal 1 b en el que está fijado un útil quirúrgico de agarre 3. En la realización mostrada, dicho útil quirúrgico de agarre 3 tiene una configuración en espiral a modo de sacacorchos, aunque otras formas están dentro del alcance de la presente invención. The laparoscopic surgical instrument of the present invention comprises, according to an embodiment shown in Figs. 1 and 2, a longitudinally elongated base body 1 having a proximal end 1a on which a handle 2 is fixed, and a distal end 1 b on which a surgical gripping tool 3 is fixed. In the embodiment shown, said surgical gripping tool 3 has a spiral configuration as a corkscrew, although other shapes are within the scope of the present invention.
Es de destacar, en el instrumento quirúrgico laparoscópico de presente la invención, la existencia de un casquillo protector 4 instalado de manera que puede desplazarse longitudinalmente sobre una superficie exterior del extremo distal de dicho cuerpo base 1 entre una posición distal de protección, en la cual el casquillo protector 4 cubre el útil quirúrgico de agarre 3 (Fig.1 ) y una posición proximal de trabajo, en la que el casquillo protector 4 descubre y deja expuesto el útil quirúrgico de agarre 3 (Fig.2).  It should be noted, in the laparoscopic surgical instrument of the present invention, the existence of a protective sleeve 4 installed so that it can move longitudinally on an outer surface of the distal end of said base body 1 between a distal protection position, in which The protective sleeve 4 covers the surgical grip 3 (Fig. 1) and a proximal working position, in which the protective sleeve 4 discovers and exposes the surgical grip 3 (Fig. 2).
Al objeto de poder efectuar el citado desplazamiento longitudinal del casquillo protector 4, el citado cuerpo base 1 tiene la peculiaridad de estar longitudinalmente abierto mediante un par de ranuras longitudinales 9, (si bien en algunas realizaciones sólo una sería suficiente) las cuales tienen un extremo abierto en el extremo proximal 1a del cuerpo base 1 y un extremo cerrado cerca del extremo distal 1b del cuerpo base 1. Por otra parte, el casquillo protector 4 presenta en su cara proximal un tope 7 constituido por una porción circular concéntrica al casquillo protector 4, y de diámetro sustancialmente menor que el diámetro interior del casquillo protector 4 y ligeramente menor que un diámetro interior del cuerpo base 1 , el cual está conectado al casquillo protector 4 por un par de apéndices 8 (o alternativamente un número de apéndices equivalente al número de ranuras longitudinales 9).  In order to be able to effect said longitudinal displacement of the protective sleeve 4, said base body 1 has the peculiarity of being longitudinally open by means of a pair of longitudinal grooves 9, (although in some embodiments only one would be sufficient) which have one end open at the proximal end 1a of the base body 1 and a closed end near the distal end 1b of the base body 1. On the other hand, the protective sleeve 4 has on its proximal face a stop 7 constituted by a circular portion concentric to the protective sleeve 4 , and of diameter substantially smaller than the inner diameter of the protective sleeve 4 and slightly smaller than an inner diameter of the base body 1, which is connected to the protective sleeve 4 by a pair of appendages 8 (or alternatively a number of appendages equivalent to the number of longitudinal grooves 9).
En una realización alternativa (no mostrada), el casquillo protector 4 está formado por dos o más partes acoplables entre sí, al menos una de las cuales comprende el apéndice 8 configurado para ser insertado a través de la ranura longitudinal 8 y conectado al citado tope 7, el cual en este caso es un cuerpo separado de las partes que forman el casquillo. En otra realización alternativa (no mostrada), el casquillo protector 4 es un cuerpo cilindrico y el tope 7 es un cuerpo separado conectado al casquillo protector 4 por uno o más elementos de fijación, tales como tornillos, remaches o vástagos, instalados desde el exterior, los cuales constituyen los mencionados apéndices 8.  In an alternative embodiment (not shown), the protective sleeve 4 is formed by two or more parts that can be coupled together, at least one of which comprises the appendix 8 configured to be inserted through the longitudinal groove 8 and connected to said stop 7, which in this case is a body separated from the parts that form the bushing. In another alternative embodiment (not shown), the protective sleeve 4 is a cylindrical body and the stop 7 is a separate body connected to the protective sleeve 4 by one or more fasteners, such as screws, rivets or stems, installed from the outside. , which constitute the aforementioned appendices 8.
El instrumento quirúrgico laparoscópico comprende además un vástago 10 introducido en el cuero base 1. Este vástago 10 tiene un extremo proximal conectado a la citada empuñadura 2, y un extremo distal plano que constituye un tope 6 que contacta con un elemento elástico 5, tal como muelle helicoidal a compresión 5, alojado dentro del cuerpo base entre dicho tope 6 formado en el extremo distal del vástago 10 y el otro tope 6 unido al casquillo protector 4. En el montaje del instrumento quirúrgico laparoscópico de la presente invención, primeramente (Fig. 4) se inserta el manguito protector 4 sobre el extremo proximal 1a del cuerpo base 1 de manera que ios apéndices 8 se insertan en las ranuras longitudinales 9, y a continuación se hace deslizar el manguito protector 4 a lo largo del cuerpo base 1 desde el extremo proximal 1a al extremo distal 1b del mismo con los apéndices 8 deslizando a lo largo de las ranuras 9 hasta la posición distal de protección en la que el manguito protector 4 cubre el útil 3. The laparoscopic surgical instrument further comprises a rod 10 inserted in the base leather 1. This rod 10 has a proximal end connected to said handle 2, and a flat distal end constituting a stop 6 that contacts an elastic element 5, such as compression coil spring 5, housed within the base body between said stop 6 formed at the distal end of the rod 10 and the other stop 6 attached to the protective sleeve 4. In the assembly of the laparoscopic surgical instrument of the present invention, firstly (Fig. 4) the protective sleeve 4 is inserted over the proximal end 1a of the base body 1 so that the appendages 8 are inserted into the longitudinal grooves 9, and then slide the protective sleeve 4 along the base body 1 from the proximal end 1a to the distal end 1b thereof with the appendages 8 sliding along the grooves 9 to the distal protection position in which the protective sleeve 4 covers the useful 3.
Entonces (Fig. 5) el elemento elástico 5 se introduce al interior del cuerpo base 1 y seguidamente se introduce el vastago 10 hasta que su tope 6 hace contacto con el elemento elástico 5. Finalmente, se acopla la empuñadura 2 fijándola mediante el acoplamiento de un fileteado de rosca exterior 12 formado en un extremo distal de la empuñadura 2 con un fileteado de rosca interior 11 formado en el extremo proximal 1a del cuerpo base 1. Con esto, el elemento elástico 5 habrá quedado aprisionado entre el tope 6 del vástago 10 y el tope 7 del casquillo protector 4.  Then (Fig. 5) the elastic element 5 is introduced inside the base body 1 and then the rod 10 is introduced until its stop 6 makes contact with the elastic element 5. Finally, the handle 2 is attached by fixing it by means of the coupling of an external thread thread 12 formed at a distal end of the handle 2 with an internal thread thread 11 formed at the proximal end 1a of the base body 1. With this, the elastic element 5 will have been pinched between the stop 6 of the rod 10 and the stop 7 of the protective sleeve 4.
Así, el casquillo protector 4 es empujado por el elemento elástico 5 hacia la posición distal de protección (Fig. 1 ) y puede ser movido hacia la posición proximal de trabajo (Fig. 2) contra la fuerza producida por la compresión del el elemento elástico 5.  Thus, the protective sleeve 4 is pushed by the elastic element 5 towards the distal protection position (Fig. 1) and can be moved towards the proximal working position (Fig. 2) against the force produced by the compression of the elastic element 5.
En la Fig. 1 se ha señalado con un círculo un detalle que se ilustra ampliado en la Fig. 3 con un cierto aditamento optativo constituido por un casquillo 13 conectado a la empuñadura 2 y dispuesto exteriormente alrededor del fileteado de rosca exterior 12. Este casquillo 13 sirve para reforzar el acoplamiento a rosca entre el cuerpo base 1 y la empuñadura 2 evitando que el extremo proximal 1a del cuerpo base 1 se abocarde radialmente debido a que las ranuras longitudinales 9 del cuerpo base 1 son abiertas en este extremo proximal 1a.  In Fig. 1, a detail that is illustrated enlarged in Fig. 3 has been indicated with a circle with a certain optional attachment constituted by a bushing 13 connected to the handle 2 and arranged externally around the external thread thread 12. This bushing 13 serves to reinforce the threaded coupling between the base body 1 and the handle 2 preventing the proximal end 1a of the base body 1 from being radially flared because the longitudinal grooves 9 of the base body 1 are opened at this proximal end 1a.
Alternativamente, el acoplamiento de la empuñadura 2 al cuerpo base 1 podría efectuarse con alguna otra disposición de tipo conocido, como por ejemplo un dispositivo de bayoneta o mediante la provisión de un sistema tipo pestaña o reborde a presión, como el que se usa en los capuchones de algunos útiles escritores.  Alternatively, the coupling of the handle 2 to the base body 1 could be carried out with some other arrangement of known type, such as a bayonet device or by the provision of a flange or pressure flange type system, such as that used in the caps of some useful writers.
En la práctica operativa, el cuerpo base 1 del instrumento quirúrgico laparoscópico de la presente invención se introduce en el cuerpo de un paciente a través de, por ejemplo, una incisión previamente efectuada, hasta alcanzar el elemento patógeno, por ejemplo un mioma (no representado). Durante la introducción, el útil quirúrgico de agarre 3 en forma de sacacorchos habrá quedado cubierto por el casquillo protector 4 en su posición distal de protección, protegiendo así los tejidos vecinos de sufrir algún daño por el extremo punzante del útil quirúrgico de agarre 3. Una vez alcanzado el elemento patógeno, el útil quirúrgico de agarre 3 penetrará en el mismo mientras que el casquillo protector 4 será retenido y se deslizará hacia su posición proximal de trabajo en el sentido de la flecha de la Fig. 2, comprimiendo el elemento elástico 5. Entonces puede comenzar el proceso de operación del elemento o parte enferma del paciente mediante el útil quirúrgico de agarre 3. In operative practice, the base body 1 of the laparoscopic surgical instrument of the present invention is introduced into the body of a patient through, for example, a previously made incision, until reaching the pathogenic element, for example a myoma (not shown) ). During the introduction, the corkscrew surgical tool 3 in the form of a corkscrew will have been covered by the protective cap 4 in its distal protection position, thus protecting the neighboring tissues from being damaged by the sharp end of the surgical gripping tool 3. A Once the pathogenic element is reached, the surgical grip 3 will penetrate it while the protective cap 4 will be retained and will slide towards its proximal working position in the direction of the arrow of Fig. 2, compressing the elastic element 5. Then the process of operation of the diseased element or part of the patient can begin by the surgical grip tool 3.
Una vez finalizado dicho proceso de operación, el cuerpo base 1 del instrumento quirúrgico laparoscopico de la presente invención puede ser retirado del interior del paciente y el manguito protector 4 volverá a su posición distal de protección cubriendo el útil quirúrgico de agarre 3 siendo empujado por el elemento elástico 5.  Once said operation process is finished, the base body 1 of the laparoscopic surgical instrument of the present invention can be removed from the interior of the patient and the protective sleeve 4 will return to its distal protection position covering the surgical gripping tool 3 being pushed by the elastic element 5.
Un experto en la materia será capaz de introducir cambios y modificaciones en el ejemplo de realización descrito y mostrado sin salirse del alcance de la invención según está definido en las reivindicaciones adjuntas.  One skilled in the art will be able to introduce changes and modifications in the exemplary embodiment described and shown without departing from the scope of the invention as defined in the appended claims.

Claims

REI VINDICACIONES REI VINDICATIONS
1.- Instrumento quirúrgico laparoscópico, comprendiendo un cuerpo base (1) alargado en una dirección longitudinal, una empuñadura (2) fijada a un extremo proximal (1a) de dicho cuerpo base (1 ), y un útil quirúrgico de agarre (3) fijado a un extremo distal (1b) del cuerpo base (1 ), caracterizado porque comprende además un casquillo protector (4) montado de manera que puede deslizar a lo largo de una superficie exterior del cuerpo base (1 ) entre una posición distal de protección, en la que dicho casquillo protector (4) cubre dicho útil quirúrgico de agarre (3), y una posición proximal de trabajo, en la que el casquillo protector (4) deja expuesto el útil quirúrgico de agarre (3), y un elemento elástico (5) configurado y dispuesto de manera que es deformado y almacena energía cuando el casquillo protector (4) es movido desde dicha posición distal de protección hacia dicha posición proximal de trabajo y que libera dicha energía almacenada para empujar al casquillo protector (4) de regreso hacia la posición distal de protección. 1.- Laparoscopic surgical instrument, comprising a base body (1) elongated in a longitudinal direction, a handle (2) fixed to a proximal end (1a) of said base body (1), and a surgical gripping tool (3) fixed to a distal end (1b) of the base body (1), characterized in that it also comprises a protective sleeve (4) mounted so that it can slide along an outer surface of the base body (1) between a distal protective position , in which said protective sleeve (4) covers said surgical grip tool (3), and a proximal working position, in which the protective sleeve (4) exposes the surgical grip tool (3), and an element elastic (5) configured and arranged so that it is deformed and stores energy when the protective sleeve (4) is moved from said distal protection position towards said proximal working position and that releases said stored energy to push the protective sleeve (4) back to the protective distal position.
2 - Instrumento quirúrgico laparoscópico según la reivindicación 1 , caracterizado porque dicho elemento elástico (5) es un muelle helicoidal dispuesto a compresión entre un primer tope (6) fijo respecto al cuerpo base (1 ) y un segundo tope (7) fijo respecto al casquillo protector (4). 2 - Laparoscopic surgical instrument according to claim 1, characterized in that said elastic element (5) is a helical spring arranged in compression between a first stop (6) fixed with respect to the base body (1) and a second stop (7) fixed with respect to the protective bushing (4).
3.- Instrumento quirúrgico laparoscópico según la reivindicación 2, caracterizado porque el cuerpo base (1 ) es un cuerpo hueco, el elemento elástico (5) está alojado dentro del cuerpo base (1 ), y dicho segundo tope (7) está conectado al casquillo protector (4) por al menos un apéndice (8) insertado a través de una correspondiente ranura longitudinal (9) formada en el cuerpo base (1 ). 3.- Laparoscopic surgical instrument according to claim 2, characterized in that the base body (1) is a hollow body, the elastic element (5) is housed within the base body (1), and said second stop (7) is connected to the protective bushing (4) by at least one appendage (8) inserted through a corresponding longitudinal slot (9) formed in the base body (1).
4.- Instrumento quirúrgico laparoscópico según la reivindicación 3, caracterizado porque dicho primer tope (6) está formado en un extremo distal de un vástago (10) fijado a dicha empuñadura (2) e insertado al interior del cuerpo base (1 ). 4.- Laparoscopic surgical instrument according to claim 3, characterized in that said first stop (6) is formed at a distal end of a stem (10) fixed to said handle (2) and inserted inside the base body (1).
5. - Instrumento quirúrgico laparoscópico según la reivindicación 4, caracterizado porque dicho extremo proximal (1 a) del cuerpo base (1 ) comprende un fileteado de rosca interior (1 1 ) y la empuñadura (2) comprende un fileteado de rosca exterior (12) acoplado a dicho fileteado de rosca interior (11 ) del cuerpo base (1 ). 5. - Laparoscopic surgical instrument according to claim 4, characterized in that said proximal end (1 a) of the base body (1) comprises an internal thread thread (1 1) and the handle (2) comprises an external thread thread (12 ) coupled to said internal thread thread (11) of the base body (1).
6. - Instrumento quirúrgico laparoscópico según la reivindicación 3 o 5, caracterizado porque dicha ranura longitudinal (9) se extiende hasta dicho extremo proximal (1a) del cuerpo base (1 ). 6. - Laparoscopic surgical instrument according to claim 3 or 5, characterized in that said longitudinal slot (9) extends to said proximal end (1a) of the base body (1).
7. - Instrumento quirúrgico lapa roscó pico según la reivindicación 3, caracterizado porque el segundo tope (7) está conectado al casquillo protector (4) por al menos un elemento de fijación instalado desde el exterior y que constituye dicho apéndice (8). 7. - Threaded limpet surgical instrument according to claim 3, characterized in that the second stop (7) is connected to the protective sleeve (4) by at least one fixing element installed from the outside and constituting said appendix (8).
8. - Instrumento quirúrgico laparoscópico según la reivindicación 3, caracterizado porque el casquillo protector (4) está formado por al menos dos partes acoplables entre sí, al menos una de las cuales comprende dicho apéndice (8) configurado para ser insertado a través de dicha ranura longitudinal (9) y conectado al segundo tope (7). 8. - Laparoscopic surgical instrument according to claim 3, characterized in that the protective cap (4) is formed by at least two parts that can be coupled together, at least one of which comprises said appendix (8) configured to be inserted through said longitudinal slot (9) and connected to the second stop (7).
9. - Instrumento quirúrgico laparoscópico según una cualquiera de las reivindicaciones precedentes, caracterizado porque dicho útil quirúrgico de agarre (3) es un removedor en forma de sacacorchos. 9. - Laparoscopic surgical instrument according to any one of the preceding claims, characterized in that said surgical grip tool (3) is a corkscrew-shaped remover.
PCT/ES2013/000139 2012-06-18 2013-06-10 Laparoscopic surgical instrument WO2013190152A1 (en)

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ES201230950A ES2439165B1 (en) 2012-06-18 2012-06-18 LAPAROSCOPIC SURGICAL INSTRUMENT

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Citations (5)

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Publication number Priority date Publication date Assignee Title
US5358508A (en) * 1993-09-15 1994-10-25 Eric Cobb Laparoscopic device
AU672060B2 (en) * 1993-01-08 1996-09-19 Silady, Eugenia Emilia Improvements in laparoscopic instruments
EP2055245A2 (en) * 2007-10-31 2009-05-06 Ethicon Endo-Surgery, Inc. Disposable cartridge for use in a gastric volume reduction procedure
WO2010137973A1 (en) * 2009-05-25 2010-12-02 Tavigny B.V. I.O. Uterine manipulator and cutting unit
US20120143209A1 (en) * 2010-12-06 2012-06-07 Soulor Surgical Inc Apparatus for treating a portion of a reproductive system and related methods of use

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU672060B2 (en) * 1993-01-08 1996-09-19 Silady, Eugenia Emilia Improvements in laparoscopic instruments
US5358508A (en) * 1993-09-15 1994-10-25 Eric Cobb Laparoscopic device
EP2055245A2 (en) * 2007-10-31 2009-05-06 Ethicon Endo-Surgery, Inc. Disposable cartridge for use in a gastric volume reduction procedure
WO2010137973A1 (en) * 2009-05-25 2010-12-02 Tavigny B.V. I.O. Uterine manipulator and cutting unit
US20120143209A1 (en) * 2010-12-06 2012-06-07 Soulor Surgical Inc Apparatus for treating a portion of a reproductive system and related methods of use

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ES2439165B1 (en) 2015-01-27

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