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WO2009150638A2 - Appareil de diathermie universel - Google Patents

Appareil de diathermie universel Download PDF

Info

Publication number
WO2009150638A2
WO2009150638A2 PCT/IB2009/053480 IB2009053480W WO2009150638A2 WO 2009150638 A2 WO2009150638 A2 WO 2009150638A2 IB 2009053480 W IB2009053480 W IB 2009053480W WO 2009150638 A2 WO2009150638 A2 WO 2009150638A2
Authority
WO
WIPO (PCT)
Prior art keywords
diathermy
sleeve
tip
suction
surgical field
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB2009/053480
Other languages
English (en)
Other versions
WO2009150638A3 (fr
Inventor
Pulathis Siriwardana
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2009150638A2 publication Critical patent/WO2009150638A2/fr
Publication of WO2009150638A3 publication Critical patent/WO2009150638A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/1402—Probes for open surgery
    • 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
    • A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
    • A61B2017/00398—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like using powered actuators, e.g. stepper motors, solenoids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00964—Features of probes
    • A61B2018/0097—Cleaning probe surfaces
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2018/00964—Features of probes
    • A61B2018/0097—Cleaning probe surfaces
    • A61B2018/00976—Cleaning probe surfaces with scraping means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B2018/1405—Electrodes having a specific shape
    • A61B2018/1412—Blade
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B2018/1475—Electrodes retractable in or deployable from a housing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
    • A61B2218/002—Irrigation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
    • A61B2218/007—Aspiration
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
    • A61B2218/007—Aspiration
    • A61B2218/008—Aspiration for smoke evacuation
    • 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
    • A61B90/70—Cleaning devices specially adapted for surgical instruments

Definitions

  • Figures 1 and 2 show the diagrammatic representation of the overall outline of the invention, which has a
  • the sleeve is the part of the diathermy which extends beyond the handle. It is made out of clear plastic so that the surgical field is least obscured. This unit is disposable.
  • Diathermy tip (1) (Figs 1, 2, 3, 4, 6)
  • Diathermy tip cleaner (2) (Fig 4)
  • Illuminator rod (5) (Figs 1, 2, 3, 5, 6)
  • the sleeve is attached to the Solenoid mechanism (6) which is situated in the handle by an interlock (7).
  • the Solenoid mechanism (6) When the Solenoid mechanism (6) is activated, the sleeve is retracted proximally towards the handle.
  • the sleeve has spaces to accommodate the diathermy tip and the Illuminator rod.
  • the Diathermy tip (1) and the Illuminator rod (5) are held by the respective units of the handle without any attachment to the solenoid mechanism (6). Therefore when the sleeve is retracted, the diathermy tip (1) and the Illuminator rod end (4.3) (Fig 1) are exposed beyond the distal end of the sleeve when it is retracted.
  • the current arch to the base plate is completed when the Diathermy Tip makes contact with patient. Due to the high temperature at the diathermy tip, tissues are incised or coagulated. Most diathermy machines have only this unit.
  • Diathermy tip cleaner (2) (Fig 4)
  • the diathermy tip cleaner is incorporated to the sleeve. This is cleaned when the sleeve is pushed forwards over the diathermy tip (1).
  • the diathermy tip cleaner (2) comprises of two sharp blades (2.1) on either side of the diathermy tip (1). The blades do not reach the distal surface of the sleeve. This is a safety feature preventing accidental injury due to the blades. These are made in such a way to have a spring action towards the diathermy tip (1) as shown in the diagram. This ensures good contact with the diathermy tip (1), which enables efficient cleaning and stability of the diathermy tip (1).
  • the movement for the spring action to take place is facilitated by the notch (2.2) and two spaces on either side of the notch.
  • a gap is maintained at all times between the blades and the sleeve to minimize damage due to heat of the diathermy tip.
  • a heat resistant alloy lines the distal part of the space for the diathermy tip (2.3).
  • the anterior end of the nozzle is protrudes beyond the rest of the sleeve and is convex for effective suction of fluid. Openings on the top of the nozzle; suction openings (3.1) (figs 3, 10) help evacuate scattered smoke as well as control the suction exerted on tissues.
  • suction Nozzle Within the Suction Nozzle is the surgical field irrigator (4).
  • the proximal end of the surgical field irrigator nozzle encloses the irrigator channel at the connection (4.1) but ensures free retraction of the sleeve
  • the sleeve has a space for the illuminator rod (5.1). This is a light transmittable, clear, plastic rod, covered by a reflecting surface (5.2). This ensures transmission of light along the rod with no scatter. It is fixed to the intermediate light source (5.5) by a screw mechanism. But it could also be fitted by any other locking mechanism. As the sleeve is retracted while the diathermy is switched on, the distal end which is not covered with the reflective surface (5.3) is exposed and illuminates the surgical field. A group of non coherent optic fibers (5.4) which wraps around the main tubing transmits light from the primary light source (5.6) to the intermediate light source (5.5).
  • the sleeve is attached to the Piston (6.1).
  • the suggested solenoid has a dual coil system.
  • a dual coil system allows a hollow piston which is necessary for the sleeve and all its contents to traverse the solenoid mechanism.
  • the proposed dual coil system gives better torque for the small size of the diathermy.
  • the coils are named as the Piston coil (6.2) and Outer coil (6.3).
  • the Outer coil (6.2) has a bidirectional power supply.
  • the current of the Piston coil (6.2) is constantly in the P- ⁇ Q direction. When the current of the outer coil is in the X- ⁇ Y direction the solenoid is locked in "push" position and when it is in the X ⁇ -Y direction it is locked in "pull" position.
  • the solenoid pulls and pushes the piston (6.1) the sleeve is retracted and protruded over the diathermy tip (1) as well as the tip of the illuminator rod (5).
  • the light generated by the Primary light source (5.6) is transmitted to the diathermy handle via Non coherent optic fibres (5.4) to the Intermediate light source (5.5).
  • the Illuminator rod (5.1) is attached to the Intermediate Light Source. Light is transferred from this to the illuminator rod (5.1).
  • Irrigation channel (8) (Fig 7, 8, 9, 10) i. Surgical field irrigator channel (8.1) ii. Suction tube irrigator channel (8.2)
  • Irrigator control Mechanism (9) (Fig 7, 8, 9, 10) i. Surgical field irrigation valve (9.1) ii. Suction tube cleaner valve (9.2)
  • the Irrigation channel (8) is wrapped around the suction tube so that minimum extra space is taken for this, reducing the bulk of the tubing.
  • the irrigation channel is divided into two.
  • the smaller channel (8.1) supplies irrigating fluid to the Surgical field irrigator.
  • the larger channel (8.2) supplies cleaning fluid to clean the blocked sucker.
  • the Irrigation channel is made out of flexible, firm plastic throughout its length.
  • the channel within the knob is aligned along the surgical field irrigator channel and the continuity of the channel is created. This opens the channel for the irrigator fluid to flow towards the surgical field irrigator.
  • sucker channel is usually kept open whist the sucker tube cleaner channel is closed.
  • the lever is pushed forwards. This creates continuity of the Sucker tube cleaner channel and also disrupts the continuity of the sucker channel. This mechanism ensures free flow of sucker tube cleaning fluid without being extracted in to the sucker.
  • the diathermy apparatus has a safety mechanism where the diathermy switch has to be pressed twice within a short period of time which is adjustable (eg. two seconds) when the diathermy is in the foot controlled mode, to activate the diathermy current.
  • the delay could be shortened or lengthened according to the need of the operator and has the option of switching off this safety mechanism. This prevents inadvertent diathermy burns due to accidental activation of the foot switch.
  • the solenoid control unit changes the direction of the current in the outer coil to X ⁇ -Y direction. This pulls the piston which retracts the attached sleeve exposing the diathermy tip (1) and the Illuminator rod (5.1).
  • the pump has two supplies. One for the Surgical field irrigator which is a low pressure system. Suction tube cleaner is connected to a high pressure system. For the two pressure modes, there are separate irrigating fluid chambers which could be refilled.
  • the sucker has two modes. These are the continuous mode and the intermittent mode.
  • the continuous mode is used for evacuation of smoke whilst the diathermy is functional and for evacuation of fluid in between sessions of diathermy.
  • Intermittent mode is used for evacuation of smoke whilst the diathermy is operational.
  • a predetermined delay is present in switching off the sucker when the diathermy is inactivated to ensure complete evacuation of smoke.

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Otolaryngology (AREA)
  • Surgical Instruments (AREA)
  • Endoscopes (AREA)

Abstract

La présente invention concerne un scalpel électrochirurgical (de diathermie), un dispositif d’aspiration pour l’évacuation de la fumée et du fluide dans différentes configurations, un nettoyeur de pointes diathermiques, un illuminateur chirurgical, un irrigateur de champ chirurgical et un nettoyeur de tube d’aspiration. Tous ces éléments sont incorporés dans un manchon en plastique jetable. Le scalpel électrochirurgical est exposé uniquement lorsqu’il est utilisé, par rétraction électrique du manchon. Lorsque le manchon est électriquement projeté vers l’avant, la pointe diathermique est mécaniquement nettoyée par le nettoyeur de pointe diathermique. Une source de lumière/source de lumière intermédiaire se couple au manchon/à la tige de l’illuminateur pour transmettre la lumière au champ chirurgical. Un canal pour l’eau est inséré dans le tube d’aspiration pour irriguer le champ chirurgical et le canal de nettoyage du tube d’aspiration aide à déloger les débris se trouvant dans ce canal commun. Une unité de contrôle principale combine et commande toutes les fonctions ci-dessus.
PCT/IB2009/053480 2008-06-12 2009-08-07 Appareil de diathermie universel Ceased WO2009150638A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LK14989 2008-06-12
LK1498908 2008-06-12

Publications (2)

Publication Number Publication Date
WO2009150638A2 true WO2009150638A2 (fr) 2009-12-17
WO2009150638A3 WO2009150638A3 (fr) 2010-05-27

Family

ID=41417202

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/053480 Ceased WO2009150638A2 (fr) 2008-06-12 2009-08-07 Appareil de diathermie universel

Country Status (1)

Country Link
WO (1) WO2009150638A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101961265A (zh) * 2010-10-14 2011-02-02 浙江大学 水导电凝止血刀

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4562838A (en) * 1981-01-23 1986-01-07 Walker William S Electrosurgery instrument
US5085657A (en) * 1983-03-14 1992-02-04 Ben Simhon Haim Electrosurgical instrument
WO1990006728A1 (fr) * 1988-12-20 1990-06-28 Ivan Grigorievich Nikolaenko Instrument electrochirurgical
US5413575A (en) * 1994-04-19 1995-05-09 Innovative Medical Technologies, Ltd. Multifunction electrocautery tool
US6032673A (en) * 1994-10-13 2000-03-07 Femrx, Inc. Methods and devices for tissue removal
US5957849A (en) * 1997-06-30 1999-09-28 The Regents Of The University Of California Endoluminal ultrasound-guided resectoscope
US20040034339A1 (en) * 2002-08-16 2004-02-19 The Regents Of The University Of California Device for improved visualization of operative sites during surgery
US20060058784A1 (en) * 2004-09-14 2006-03-16 Tewodros Gedebou Oxygen sensory system that minimizes outbreak of operating room fires

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101961265A (zh) * 2010-10-14 2011-02-02 浙江大学 水导电凝止血刀

Also Published As

Publication number Publication date
WO2009150638A3 (fr) 2010-05-27

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