WO2014083576A2 - Dispositif chirurgical ayant une protection d'élément de coupe unique - Google Patents

Dispositif chirurgical ayant une protection d'élément de coupe unique Download PDF

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Publication number
WO2014083576A2
WO2014083576A2 PCT/IN2013/000708 IN2013000708W WO2014083576A2 WO 2014083576 A2 WO2014083576 A2 WO 2014083576A2 IN 2013000708 W IN2013000708 W IN 2013000708W WO 2014083576 A2 WO2014083576 A2 WO 2014083576A2
Authority
WO
WIPO (PCT)
Prior art keywords
cutting member
shield
rotary knob
unique
sharp edge
Prior art date
Application number
PCT/IN2013/000708
Other languages
English (en)
Inventor
Sandeep Ambardekar
Salman KAPADIA
Original Assignee
Sandeep Ambardekar
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 Sandeep Ambardekar filed Critical Sandeep Ambardekar
Publication of WO2014083576A2 publication Critical patent/WO2014083576A2/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
    • A61B17/32002—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes with continuously rotating, oscillating or reciprocating cutting instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/3205—Excision instruments
    • A61B17/32053—Punch like cutting instruments, e.g. using a cylindrical or oval knife
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/320016—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes
    • A61B17/32002—Endoscopic cutting instruments, e.g. arthroscopes, resectoscopes with continuously rotating, oscillating or reciprocating cutting instruments
    • A61B2017/320024—Morcellators, e.g. having a hollow cutting tube with an annular cutter for morcellating and removing tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/08—Accessories or related features not otherwise provided for
    • A61B2090/0801—Prevention of accidental cutting or pricking
    • A61B2090/08021—Prevention of accidental cutting or pricking of the patient or his organs

Definitions

  • This invention relates generally to surgical device and particularly to a surgical tissue extractor with a dedicated feature for actuating the cutting member shield in minimally invasive, surgical procedures.
  • Automatic motorized surgical tissue extraction device are well efficient to remove even dense tissues such as partially calcified leiomyoma. Because of its sharpness, the automatic surgical tissue extraction device can cut through the vital structures as easily as it penetrates through the fibroids. It is critical that the surgeon must maintain constant visualization and that tissue be brought towards the surgical tissue extraction device and be kept away from the underlying structures.
  • Surgical tissue extraction device For a laparoscopic procedure, the abdomen is inflated with gas (carbon dioxide or nitrous oxide). The gas, which is injected with a needle, pushes the abdominal wall away from the organs so that the surgeon can see them clearly.
  • the surgical tissue extraction device is advanced towards the tissue via a trocar or a directly through the incision.
  • Surgical tissue extraction device generally includes a gyrating hollow tube with a distal cutting edge located within an external hollow tube.
  • a grasping instrument such as a tenaculum is passed through the inner hollow tube which grasps and pulls the tissue to be severed and the resected tissue fractions are then extracted out through it. Repeating the grasping and resection procedure the surgeon removes the large tissue in succession. This technique is referred to as "mutilation”.
  • the unique cutting member shield design disclosed in this invention solves the problems and shortcomings of the prior arts and thus prevents accidental injury to the tissues while the tissue extraction is carried out which allows safe method of cutting the tissue.
  • This invention further involves a method of rotating the external rotary knob of the device in a manner to operate the cutting member shield and overcome the shortcomings involved during surgery by the surgeon for manipulation of the sharp edge cutting member.
  • the present invention relates to providing a surgical tissue extraction device with an enhanced mechanism for extending and withdrawing the cutting member shield (17) that is in continuous manner and an integral part of outer elongated hollow tube.
  • the cutting member shield will help to maintain safe control of the sharp edge cutting member (21) exposure so that it does not cause unnecessary damage to tissues during laproscopic surgery.
  • This surgical tissue extraction device includes two coaxially placed hollow elongated tubes of which the inner elongated hollow tube (2) remains motor driven.
  • the inner elongated hollow tube (2) comprises of a sharp edge cutting member (21) at its distal end and its proximal end is linked to a bevel gear mechanism.
  • the bevel gear is located within the pistol-grip handle of the device.
  • the drive shaft is mounted at 90° on the cartridge of which one end when connected to a motor assembly and the other end when connected to the input pinion results in rapid spinning motion of the sharp edge cutting member.
  • the sharp edge cutting member (21) is configured to spin upon its axis by an electrically driven reusable and variable speed motor assembly.
  • the motor assembly can also be controlled using a foot pedal which is meant for better control of the cutting device.
  • the outer elongated hollow tube (1) comprises of a unique cutting member shield (17) at its distal end which is deliberately bead rolled to function as an effective anti-mutilating element that is in continuous manner and an integral part of outer elongated hollow tube to prevent damage of the surrounding vital structure.
  • the novel design of the cutting member shield (17) will prevent the accidental dive in of the sharp edge cutting member (21) in the tissue.
  • the characteristic design of the cutting member shield (17) will help safeguard against the over exposure of the sharp edge cutting member (21) and thereby prevent chance mutilation of the healthy tissue.
  • the outer elongated hollow tube (1) is designed to have inward-outward linear motion.
  • the outer elongated hollow tube (1) is linked to a manually operated dedicated bidirectional external rotary knob. This bi-directional external rotary knob (3) is designed to function using a slide collar (5) and a cam rotator (4). The bi-directional external rotary knob (3) will allow the shield design to be rotated in multiple directions according to the convenience of the surgeon. Unlike other designs, since anti-mutilating member is integral part of the outer tube, there is no chance of any loose piece falling in the abdominal space.
  • the outer shield forms the integral part of the outer elongated hollow tube and hence is safe to be used.
  • the bi-directional external rotary knob design has four sites for rotation (fig 17, 18, 19, 20) that will lead to the movement of the shield design at multiple sites as desired by the surgeon.
  • the cam rotator (4) comprises of 4 locking sites:
  • Each site is designed to provide the surgeon with operational ease of the cutting device during the severing procedure.
  • the surgeon can apply the orange peel technique by rotating the knob to the site 32 position (fig: 18).
  • the surgeon can exercise the mutilation technique by accessing the knob in the site 34 (fig: 20) position.
  • Sites 31 position (fig: 17) and 33 position (fig: 19) are designed to turn off the spinning sharp edge cutting member. Incorporating such a specialized feature makes both the severing procedure as well as the surgeon's preference more versatile.
  • FIG.01 is isometric view of the device showing the shield design at the distal end of outer tube.
  • FIG.02 is front view of the device showing the shield design at the distal end of outer tube.
  • FIG.03 is detailed view of the shield design.
  • FIG.04 is sectional view of the device.
  • FIG.06 is top view of the device.
  • FIG.07 is front view of the device.
  • FIG.08 is top view of the device.
  • FIG.13 is top view of the device.
  • FIG.14 is isometric view of the rotary knob design present in the device.
  • FIG.15 is isometric view of the rotary knob design present in the device.
  • FIG.16 is isometric view of the device showing cam rotator has 4 locking cavity sites for the slide collar protrusion to fit in.
  • FIG.17 is isometric view of the device showing no cut position on the rotary knob.
  • FIG.18 is isometric view of the device showing cut position on the rotary knob.
  • FIG.19 is isometric view of the device showing no cut position on the rotary knob.
  • FIG.20 is isometric view of the device cut plus position on the rotary knob.
  • the following invention describes the design of the cutting member shield and mechanism of operating the outer elongated hollow tube cutting member shield by manipulation of the sharp edge cutting member as per the surgeon's preference.
  • Fig: 6, 8, and 13 The superior mechanism of activating the cutting member shield (17) comprises of a bi-directional external rotary knob (3). This dedicated knob mechanism is meant to be manually operated at multiple directions.
  • the design of the cutting member shield mechanism (fig: 6, 8, 13) prevents accidental damage to the tissue due to over exposure of the sharp edge cutting member (21).
  • the outer elongated hollow tube (1) can be activated manually using the bi-directional external rotary knob (3) (fig: 6, 8, 13). This outer elongated hollow tube (1) will fail to move against any other miscellaneous force or source of energy.
  • the bi-directional external rotary knob design (fig: 14, 15, 16) forms the core of the cutting member shield actuation mechanism. It is designed to have an inbuilt slide collar (5) and a cam rotator (4).
  • the cam rotator (4) has 4 locking cavity sites for the slide collar protrusion (15) to fit in
  • the arrow marker on the device handle (19) indicates the position of the shield activation site.
  • the cam rotator (4) is attached to the bi-directional external rotary knob (3) in a way that the slide collar protrusion (15) locks in the four locking cavity sites on the cam. This action will allow the cam follower to rotate in the direction in which the bi-directional external rotary knob (3) is moved.
  • the cam follower is located on the slide collar which slides on the cam profile through 4 separate locking cavity sites (1 1 , 12, 13, and 14). This action results in linear extension and retraction of the outer elongated hollow tube (1) as desired.
  • a spiral coil (06) is attached with its one side resting inside the bi-directional external rotary knob (3) and the other end facing the slide collar (5) (fig: 09, 1 1).
  • the bi-directional external rotary knob design has four sites (fig: 17, 18, 19, 20) for rotation that will lead to the movement of the shield design at multiple sites as desired by the surgeon.
  • the bi-directional external rotary knob (3) when further advanced to 90 degrees at site 31 (fig: 17) (site 13 on cam rotator) or regressed 90 degrees back to at site 33 (fig: 19) (site 11 on cam rotator) the shield will cover the cutting member (21) by moving the outer elongated hollow tube which is in continuous manner and an integral part of outer elongated hollow tube (1) ⁇
  • the bi-directional external rotary knob (3) has to be rotated 90 degrees in the anticlockwise direction at site 34 (fig: 20) (site 14 on cam rotator). This will result in the complete exposure of the sharp edge cutting member (21) and invariably also lead to the complete retraction of the outer elongated hollow tube (1) and the cutting member shield (17).
  • the bi-directional external rotary knob (3) when further advanced to 90 degrees at site 31 (fig: 17) (site 13 on cam rotator) or regressed 90 degrees back to at site 33 (fig: 19) (site 1 1 on cam rotator) the shield will cover the cutting member (21) by moving the outer elongated hollow tube which is in continuous manner and an integral part of outer elongated hollow tube (l).
  • the spiral coil (6) will retain the follower at the designated cavity site.
  • the bi-directional external rotary knob (3) when advanced towards (site 13) or retracted back (site 11) 90 degrees will cover the cutting member (21) by moving the outer elongated hollow tube (1).
  • the sharp edge cutting member (21) is activated by a drive shaft.
  • One end of the drive shaft is attached to the motor drive and other end is inserted in the handle assembly (18) which rapidly spins the sharp edge cutting member (21).
  • Fig: 3 The novel design of the cutting member shield (17) is deliberately bead rolled to function as an effective anti -mutilating element to avert accidental excessive severing of the tissue.
  • the unique cutting member shield (17) serves to provide enhanced safety against chance mutilation of the tissue and to prevent the dive in of the sharp edge cutting member (21) within the healthy tissue. Unlike other designs, since anti -mutilating member is integral part of the outer tube, there is no chance of any loose piece falling in the abdominal space.
  • the outer shield forms the integral part of the outer elongated hollow tube and hence is safe to be used. This characteristic cutting member shield (17) by no means alters the intensity or the direction of rotational motion of the power driver sharp edge cutting member (21).

Abstract

L'invention concerne un dispositif chirurgical destiné à être utilisé dans des interventions chirurgicales laparoscopiques non effractives pour la mutilation et réduction tumorale par voie percutanée du tissu. Le dispositif comprend un tube allongé creux intérieur (2) ayant un élément de coupe à bord pointu (21) disposé à son extrémité distale. Ce tube est positionné de façon concentrique à l'intérieur de la lumière d'un tube allongé creux extérieur (1) qui présente une conception de protection d'élément de coupe unique (17) à une extrémité distale du tube creux allongé extérieur (1). La protection d'élément de coupe servira à agir comme élément anti-mutilation efficace. La protection d'élément de coupe peut être activée par un mouvement rotatif au moins bidirectionnel dédié d'un bouton tournant externe. Le bouton tournant est conçu pour avoir un mouvement rotatif au moins bidirectionnel. La protection d'élément de coupe (17) peut être activée par un mouvement dédié d'un bouton rotatif externe (3) dans de multiples positions. La rotation du bouton sur de multiples côtés permet au médecin d'avoir un réglage commode sur l'exposition de l'élément de coupe à bord pointu pendant l'intervention d'excision de tissu. Une telle caractéristique distinctive du dispositif aidera le chirurgien à avoir une manipulation facile et à limiter une lésion accidentelle du tissu par l'élément de coupe à bord pointu pendant l'intervention.
PCT/IN2013/000708 2012-11-27 2013-11-22 Dispositif chirurgical ayant une protection d'élément de coupe unique WO2014083576A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN3377/MUM2012 2012-11-27
IN3377MU2012 2012-11-27

Publications (1)

Publication Number Publication Date
WO2014083576A2 true WO2014083576A2 (fr) 2014-06-05

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ID=50828568

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2013/000708 WO2014083576A2 (fr) 2012-11-27 2013-11-22 Dispositif chirurgical ayant une protection d'élément de coupe unique

Country Status (1)

Country Link
WO (1) WO2014083576A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105310745A (zh) * 2015-03-25 2016-02-10 周军 一种医用盾构刀及其使用方法
JP2022106277A (ja) * 2021-01-06 2022-07-19 ラジス エンタープライズ カンパニー リミテッド 組織切除装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105310745A (zh) * 2015-03-25 2016-02-10 周军 一种医用盾构刀及其使用方法
JP2022106277A (ja) * 2021-01-06 2022-07-19 ラジス エンタープライズ カンパニー リミテッド 組織切除装置
ES2920748R1 (es) * 2021-01-06 2022-12-20 Lagis Entpr Co Ltd Dispositivo quirúrgico para corte de tejido en el cuerpo de un paciente
JP7226848B2 (ja) 2021-01-06 2023-02-21 ラジス エンタープライズ カンパニー リミテッド 組織切除装置

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