WO2021033201A1 - Dispositif d'irrigation-aspiration intégré - Google Patents

Dispositif d'irrigation-aspiration intégré Download PDF

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Publication number
WO2021033201A1
WO2021033201A1 PCT/IN2020/050719 IN2020050719W WO2021033201A1 WO 2021033201 A1 WO2021033201 A1 WO 2021033201A1 IN 2020050719 W IN2020050719 W IN 2020050719W WO 2021033201 A1 WO2021033201 A1 WO 2021033201A1
Authority
WO
WIPO (PCT)
Prior art keywords
irrigation
suction
switch
integrated
suction device
Prior art date
Application number
PCT/IN2020/050719
Other languages
English (en)
Inventor
Devendra Kumar Dubey
Shashwat MISHRA
Arnab Jyoti SHARMA
Menaka SINGH
Kunal JOSHI
Original Assignee
Devendra Kumar Dubey
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 Devendra Kumar Dubey filed Critical Devendra Kumar Dubey
Publication of WO2021033201A1 publication Critical patent/WO2021033201A1/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
    • A61M3/00—Medical syringes, e.g. enemata; Irrigators
    • A61M3/02—Enemata; Irrigators
    • A61M3/0204—Physical characteristics of the irrigation fluid, e.g. conductivity or turbidity
    • A61M3/022—Volume; Flow rate
    • 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
    • A61B90/50—Supports for surgical instruments, e.g. articulated arms
    • A61B90/57—Accessory clamps
    • 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
    • A61M1/71—Suction drainage systems
    • A61M1/77—Suction-irrigation systems
    • A61M1/774—Handpieces specially adapted for providing suction as well as irrigation, either simultaneously or independently
    • 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
    • A61M3/00—Medical syringes, e.g. enemata; Irrigators
    • A61M3/02—Enemata; Irrigators
    • A61M3/0204—Physical characteristics of the irrigation fluid, e.g. conductivity or turbidity
    • A61M3/0208—Physical characteristics of the irrigation fluid, e.g. conductivity or turbidity before use
    • 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
    • A61M1/71—Suction drainage systems
    • A61M1/74—Suction control
    • A61M1/742—Suction control by changing the size of a vent
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/58—Means for facilitating use, e.g. by people with impaired vision
    • A61M2205/587—Lighting arrangements
    • 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
    • A61M2209/00—Ancillary equipment
    • A61M2209/08—Supports for equipment
    • A61M2209/082—Mounting brackets, arm supports for equipment

Definitions

  • TITLE AN INTEGRATED IRRIGATION-SUCTION DEVICE
  • the present invention relates to an integrated irrigation-suction device. More particularly, to an integrated irrigation-suction cannula with electronic control for irrigation and suction for use in microneurosurgery and similar fields of small bore sizes surgical area.
  • Microneurosurgery is an extremely complex procedure which requires proper coordination among various surgical tools being used. Irrigation and suction are two of the most frequently performed procedures during a surgery to locate bleeding points and remove excess fluid from the operating site.
  • irrigation-suction devices There are several integrated irrigation-suction devices that exist in prior art in which the irrigation flow rate is controlled by pressing a mechanical switch (present on the device) using the thumb or forefinger. This functionality is only available in endoscopes which play no significance in microneurosurgeries.
  • Delta Irrigation Sucker which is also having a mechanically operable switch needed for the activation of irrigation mechanism that further increases the musculoskeletal strain.
  • Opto Irrigator which incorporates both suction and irrigation and uses an optical switch for actuating the irrigation mechanism.
  • the optically controlled switch is a fragile and expensive option for initiating the irrigation mechanism. It raises the device cost and has a hidden consumable cost for the optical fiber. The sensitivity of the touch sensing optical mechanism cannot be adjusted by the user.
  • the irrigation mechanism involves a peristaltic pump which is also expensive.
  • another device existing in prior art is the Controlled Suction with
  • Venous Catheter Irrigation device In this existing device venous catheter is inserted into a normal Frazier Suction Tube through its suction control pore and upon pressing the thumb against the tube, irrigation stops and suction starts and vice-versa.
  • the major drawbacks of this design are: (i) the venous catheter partially blocks the suction cannula reducing the bore of the suction channel;
  • MPIS microsurgical pressure-irrigation-suction system
  • ENDOPATH Probe Plus II that facilitates tissue dissection, coagulation, irrigation, and fluid evacuation.
  • the complete system is designed to meet a wide variety of surgical needs such as one-handed use which increase surgical efficiency through less instrument exchanges but the major drawback is that it is intended only for endoscopic surgical procedures and is not suitable for surgeries performed under the operating microscope.
  • interchangeable combined irrigation suction devices are also available in prior art where the arrangement includes two tubes for irrigation and suction respectively but said both tubes form a single body and can’t be detached from each other. These devices have a very crude and primitive mechanism for controlling the irrigation, often obligating the surgeon to change the position of his/her grip around the device or involving an assistant.
  • US20150335813A1 discloses a surgical irrigation and suction apparatus including a removable tube divided into an irrigation chamber and a suction chamber and the flow of fluids in respective chamber is controlled via thumb actuation of a respective pinch valve.
  • the pinch valve is in the shape of a wheel having an axis confined within a groove and user rotates the pinch valve using her thumb to force the wheel's axis to move along the groove for opening of the corresponding tube for transporting the fluid within.
  • rotating the wheel is not a convenient control mechanism for modifying the strength of the suction and/or irrigation during surgical procedures as it needs high fine motor skills to switch between suction and irrigation modes, while simultaneously other treatments have to be completed. Hence compromising the absolute stability needed for micro surgical operations.
  • WO2012069592A1 discloses a suction and irrigation device comprising a valve body with an irrigation passage and a suction passage.
  • the valve is adjusted to different position through a push button movable by mechanical force for opening and closing of irrigation & suction.
  • the push button comprises a movable element as an elastically deformable element, which is deformable by mechanical force acted upon and in some cases when magnitude of force applied is more the switch or valve may lead to shivering of the hand and therefore of the suction and irrigation device.
  • US7540873B2 discloses a four function microsurgery instrument performing the functions of aspiration, irrigation, dilation and cauterization.
  • the instrument includes a common conduit consisting two separate conduits, co-axial conduits with two channels and side-by-side conduit strips with one delivering fluid and the other suction.
  • the function provided by the conduit is determined by an irrigation-fluid and aspiration-suction control and transmission system which consists of a plunger valve for actuation by a user for controlling both irrigation-fluid and aspiration-suction.
  • This device however is only suited for very specific microsurgical applications such as vessel anastomosis.
  • the suction channel is having insufficient caliber for replacing the suction irrigation steps needed during diverse microsurgical applications.
  • a lavage handle for facilitating an irrigation function and a suctioning function at a target zone.
  • the disclosed handle consists of a power operated actuation mechanism which includes a pressure-sensitive contact in communication with the deformably resilient material for controlling fluid displacement such as irrigation and/or suction.
  • the actuation mechanism when squeezed a first time activates the fluid-displacing mechanism and thereafter when squeezed a second time deactivates the fluid-displacing.
  • This lavage handle is not suitable for use during surgical procedures performed under the microscope.
  • the present invention provides an integrated irrigation-suction device wherein irrigation is controlled electronically via a sensor acting as a touch-activated switch. Hence much less force required to operate it making the device ergonomic, easy to use, efficient and well suited to the delicateness required during surgeries performed with the help of operating microscope .
  • the present invention is an integrated irrigation-suction device (100) comprising: a) a handpiece (10) consisting of (i) an integrated irrigation-suction cannula (11) being a cylindrical tube with a tapered end and internally partitioned to divide it asymmetrically into two halves (11 A , 11 B ), one being an irrigation halve (11 A) and another being a suction halve (11 B) (ii) a handle (21) with three openings
  • - third opening being a perforated channel connecting suction halve ( 11 B) to a suction tube (2A) of a suction pump (2) for allowing control of suction through suction halve (11 B) by partially or fully closing or opening of the perforation (23), and housed thereon with an electronic switch (22) for generating a signal proportionate to the force exerted on the switch (22), b) an irrigation controller (30) having
  • the irrigation controller (30) is a detachable unit consisting of a grip handle (35) for holding the unit while attaching, detaching and easy portability, and a pair of mounting brackets (36) for mounting the entire controller unit onto the operating table.
  • the integrated irrigation-suction device of present invention also consists a knob (32) for controlling the sensitivity of the electronic switch (22).
  • Fig. 1 illustrates the overall working assembly of the integrated irrigation- suction device (100) of the present invention
  • FIG. 2 illustrates the assembly of the integrated irrigation-suction device (100) of the present invention
  • Fig. 3 illustrates the sectional view of handpiece (10) of the integrated irrigation-suction device (100) of the present invention
  • Fig. 4 illustrates the exploded view of handpiece (10) of the integrated irrigation-suction device (100) of the present invention.
  • Fig. 5 illustrates the irrigation controller (30) of the integrated irrigation- suction device (100) of the present invention.
  • the integrated irrigation-suction device (100)of present invention comprises a handpiece (10) consisting of (i) an integrated irrigation- suction cannula (11) being a cylindrical tube with a tapered end and internally partitioned to divide it asymmetrically into two halves (11 A , 11 B ), one being an irrigation halve (11 A) and another being a suction halve (11 B) and (ii) a handle (21) with three openings in which first opening is for detachably accommodating said cannula (11) at its non-tapered end, second opening being a closed channel connecting irrigation halve (11 A) to an irrigation tube (1 A) of an IV fluid source (1), and third opening being a perforated channel connecting suction halve ( 11 B) to a suction tube (2A) of a suction pump (2) for allowing control of suction through suction halve (11 B) by partially or fully closing or opening of the perforation (23).
  • a handpiece 10
  • an electronic switch 2
  • the integrated irrigation-suction device of present invention also comprises an irrigation controller (30) having a flow control valve (31) holding the irrigation tube (1A) via slot, a PCB connected to said electronic switch (22) for receiving and processing the signal from said switch to actuate the flow control valve (31) and compress or decompress the irrigation tube (1A) to control the irrigation flow rate through the irrigation halve (11 A), and ports (33, 34) for receiving input signal from the electronic switch (22) and power supply respectively.
  • the irrigation controller (30) is a detachable unit consisting of a grip handle (35) for holding the unit while attaching and detaching, and a pair of mounting brackets (36) for mounting the entire controller unit onto the operating table.
  • the integrated irrigation-suction device (100) of present invention further consist a knob (32) for controlling the sensitivity of the electronic switch (22).
  • the handle (21) being detachable from cannula (11) has a locking mechanism for accommodating and fitting of cannula (11) into the handle (21).
  • the locking mechanism of the detachable cannula (11) can be of any type that is leak-proof and provides enough strength to resist bending during operation.
  • the electronic switch (22) is a touch responsive button or touch activated switch preferably a force sensor for controlling the irrigation flow and the perforation (23) is a tear drop shape cavity for controlling the suction rate.
  • the switch (22) can be any type of electronic switch utilizing minimum or zero activation force, unlike mechanical switches and the sensor can be a force sensor, touch sensor, ambient light sensor, etc., for controlling irrigation.
  • the force sensor (22) can be accommodated on the handle (21) of the device in a detachable tray form for enabling separate sterilization for the electronic and non-electronic parts and also for easier handling.
  • the flow control valve (31) is an electric-operated pinch valve. Further electric-operated pinch valve (31) and PCB are assembled inside the irrigation controller (30).
  • the force sensor (22) is connected to PCB via a wire which transfers the signal from force sensor (22) to PCB when it is touched.
  • the signal transferred from force sensor (22) to PCB is in the form of voltage deflection generated on touching the force sensor (22).
  • the activation force required to be exerted on sensor (22) for generation of signal by the sensor is adjusted by a knob (32) mounted on PCB.
  • the integrated irrigation-suction cannula (11) is mounted with an illumination source (12) on its outer surface by a built in casing.
  • the illumination source (12) illuminates the region that needs to be operated which enables ease of operation where adequate amount of light is not provided.
  • the Illuminating source (12) can be of any type such as but not limited to LED. Additionally, it can be placed anywhere within the cannula (11) for providing focused beam at the surgical field.
  • the integrated irrigation-suction cannula (11) of present invention can be used in any microsurgical application apart from microneurosurgery, such as micro level ENT and dental surgery, with slight or no modifications.
  • the user has to touch the electronic switch (22) to activate the irrigation through the irrigation halve (11 A) of the cannula (11), on touching switch (22) the irrigation fluid is supplied to the irrigation halve (11 A) from IV fluid source (1) via an irrigation tube (1a), the irrigation tube (1a) passes through the irrigation controller (30) which compresses and decompresses the irrigation tube (1a) to control flow rate.
  • suction halve (11 B) to activate suction at suction halve (11 B) the user has to cover the perforation (23) with the thumb.
  • Constant suction is performed by a suction pump (2), when suction is not needed the air suction is done through the perforation (23), when suction is required the user covers the perforation (23) with his thumb and suction is done from the suction halve (11 B) of cannula (11 ).
  • FIGURES 1 to 2 The overall view of the integrated irrigation-suction device (100) constructed according to one of the preferred embodiment of invention is depicted in FIGURES 1 to 2, for explaining the components of the device. Referring now to the FIGURES, more particularly to FIGURES 1 to 2, where similar reference characters denote corresponding features consistently throughout the FIGURES, preferred embodiments are shown.
  • Fig. 1 illustrates the overall working assembly of the integrated irrigation- suction device (100) constructed according to one of the preferred embodiment of invention, which consists of an IV fluid source (1) with an irrigation tube (1a), a suction pump (2) with a suction tube (2a), a handpiece (10) consisting of an integrated irrigation-suction cannula (11) being a cylindrical tube with a tapered end and a handle (21), an irrigation controller (30) having an electric-operated pinch valve (31) holding the irrigation tube (1a) via slot, and a PCB.
  • the IV fluid source (1) with an irrigation tube (1a), a suction pump (2) with a suction tube (2a) are part of prior art which are included herein only to depict the overall working assembly of the integrated irrigation- suction device (100) of present invention.
  • Fig. 2 illustrates the assembly of the integrated irrigation-suction device (100) constructed according to one of the preferred embodiment of invention, which comprises a handpiece (10) consisting of an integrated irrigation-suction cannula (11) being a cylindrical tube with a tapered end, and a handle (21), an irrigation controller (30) having an electric-operated pinch valve (31) holding the irrigation tube (1a) via slot, a PCB, and ports (33, 34) for receiving input signal from the force sensor (22) and power supply respectively, wherein the PCB also consists a knob (32) to control the sensitivity of the force sensor (22).
  • a handpiece 10 consisting of an integrated irrigation-suction cannula (11) being a cylindrical tube with a tapered end, and a handle (21), an irrigation controller (30) having an electric-operated pinch valve (31) holding the irrigation tube (1a) via slot, a PCB, and ports (33, 34) for receiving input signal from the force sensor (22) and power supply respectively, wherein the PCB also consists a
  • FIG. 3 & 4 illustrates sectional and exploded view of the handpiece (10) constructed according to one of the preferred embodiment of invention, which consists of an integrated irrigation-suction cannula (11) being a cylindrical tube with a tapered end and internally partitioned to divide it asymmetrically into two halves (11 A , 11 B ), one being an irrigation halve (11 A) and another being a suction halve (11 B), and a handle (21) with three openings, first opening detachably accommodating said cannula (11) at its non-tapered end, second opening being a closed channel connecting irrigation halve (11 A) to the irrigation tube (1A) of the IV fluid source (1), third opening being a perforated channel connecting suction halve (11 B) to the suction tube (2a) of the suction pump (2) and allowing control of suction through suction halve (11 B) by partially or fully closing or opening of the perforation (23), and housed thereon with a force sensor (22) to
  • Fig. 5 (a & b) illustrates the irrigation controller (30) of the integrated irrigation-suction device (100) constructed according to one of the preferred embodiment of invention, which consists of an electric-operated pinch valve (31) holding the irrigation tube (1a) via slot, the PCB with the knob (32) that control the sensitivity of the sensor (22), ports (33, 34) for receiving input signal from the sensor (22) and power supply respectively.
  • the irrigation controller (30) is a detachable unit which consists of a grip handle (35) for holding the unit while attaching and detaching, and a pair of mounting brackets (36) for mounting the entire controller casing onto the operating table without requirement of any additional accessory.

Abstract

La présente invention concerne un dispositif d'irrigation-aspiration intégré (100) comprenant une pièce à main (10) constituée (i) d'une canule d'irrigation-aspiration intégrée (11) et (ii) d'une poignée (21), et un contrôleur d'irrigation amovible (30). La canule d'irrigation-aspiration (11) comprend en outre un tube cylindrique conique doté d'une cloison à l'intérieur divisant le tube en deux moitiés (11A & 11B) asymétriques, l'une pour l'irrigation (11A) et l'autre pour l'aspiration (11B) et la poignée (21) reçoit un commutateur électronique de commande de flux d'irrigation (22). Le dispositif de commande d'irrigation (30) reçoit et traite un signal d'entrée provenant du commutateur (22) actionnant une vanne de commande de flux de préférence une vanne de pincement actionnée électriquement (31) pour commander un flux d'irrigation. La force d'activation exercée sur le commutateur (22) pour générer un signal par le commutateur (22) est ajustée par un bouton (32) monté sur la PCB connectée au commutateur (22). La poignée (21) est en outre constituée d'une source d'éclairage (12) pour éclairer une zone cible.
PCT/IN2020/050719 2019-08-18 2020-08-17 Dispositif d'irrigation-aspiration intégré WO2021033201A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201911033265 2019-08-18
IN201911033265 2019-08-18

Publications (1)

Publication Number Publication Date
WO2021033201A1 true WO2021033201A1 (fr) 2021-02-25

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5718668A (en) * 1993-04-19 1998-02-17 Stryker Corporation Irrigation handpiece with built in pulsing pump
US6176847B1 (en) * 1999-05-14 2001-01-23 Circon Corporation Surgical irrigation system incorporating flow sensor device
EP3011983A1 (fr) * 2013-06-21 2016-04-27 Jianmin Qian Cathéter multifonctionnel de rinçage et d'aspiration
DE202018002112U1 (de) * 2018-04-26 2018-05-25 Norbert Neubauer Wund-Spül-Saugstab

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5718668A (en) * 1993-04-19 1998-02-17 Stryker Corporation Irrigation handpiece with built in pulsing pump
US6176847B1 (en) * 1999-05-14 2001-01-23 Circon Corporation Surgical irrigation system incorporating flow sensor device
EP3011983A1 (fr) * 2013-06-21 2016-04-27 Jianmin Qian Cathéter multifonctionnel de rinçage et d'aspiration
DE202018002112U1 (de) * 2018-04-26 2018-05-25 Norbert Neubauer Wund-Spül-Saugstab

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