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WO2018191821A1 - Enceinte autoclavable destinée à un instrument minimalement invasif - Google Patents

Enceinte autoclavable destinée à un instrument minimalement invasif Download PDF

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Publication number
WO2018191821A1
WO2018191821A1 PCT/CA2018/050467 CA2018050467W WO2018191821A1 WO 2018191821 A1 WO2018191821 A1 WO 2018191821A1 CA 2018050467 W CA2018050467 W CA 2018050467W WO 2018191821 A1 WO2018191821 A1 WO 2018191821A1
Authority
WO
WIPO (PCT)
Prior art keywords
enclosure
shaft
core
shell
sealing element
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/CA2018/050467
Other languages
English (en)
Inventor
Robert Brooks
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.)
Forcen Inc
Original Assignee
Sensor Medical Laboratories Ltd
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 Sensor Medical Laboratories Ltd filed Critical Sensor Medical Laboratories Ltd
Publication of WO2018191821A1 publication Critical patent/WO2018191821A1/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
    • A61B46/00—Surgical drapes
    • A61B46/10—Surgical drapes specially adapted for instruments, e.g. microscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B50/00—Containers, covers, furniture or holders specially adapted for surgical or diagnostic appliances or instruments, e.g. sterile covers
    • A61B50/30—Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B50/00—Containers, covers, furniture or holders specially adapted for surgical or diagnostic appliances or instruments, e.g. sterile covers
    • 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

Definitions

  • the present invention relates to minimally invasive and diagnostic procedures and more particularly to an apparatus for protecting electronic devices and components associated with instruments during the procedures or during sterilization.
  • Minimally invasive surgery and diagnostic procedures are methods of accessing the internal organs of the body where instruments are inserted into the body through small incisions which also include, but is not limited to, natural orifices such as, but not limited to, the mouth, rectum, urethra, or vagina and limited access incisions such as, but not limited to, access in spinal surgery.
  • Minimally invasive instruments may be rigid, flexible, semi-rigid, or any combination thereof, and typically consist of a proximal handle, an elongated member extending from the handle, and a distal end effector.
  • the minimally invasive instruments are inserted into the body through trocars which provide a conduit for minimally invasive instruments with end effectors, such as, graspers, snares, scissors, needles, or retractors.
  • end effectors such as, graspers, snares, scissors, needles, or retractors.
  • the trocar is inserted into the body through a small incision dimensioned to fit the sharp, removable tip of the trocar, and the trocar is advanced into the body until the tip reaches the surgical site.
  • clinicians operate the proximal handle which controls the end effector inside the body through the medial shaft body, from outside the body.
  • the trocars can also act as a port for injecting a gas, such as nitrogen, oxygen, or air into the cavity to expand the cavity and create a larger working area for the minimally invasive instruments.
  • a gas such as nitrogen, oxygen, or air
  • the gap between the minimally invasive instrument and trocar is minimized to prevent the gas from escaping.
  • the minimally invasive instruments can also be operated robotically with the proximal handle being replaced by an interface to a robot. These minimally invasive instruments are typically operated with only video feedback provided by an endoscope. However, the remote operation of the minimally invasive instruments can make it more difficult to monitor and control the multitude of variables associated with a procedure. Accordingly, electronics and sensors may be incorporated into minimally invasive instruments to assist in monitoring and controlling the variables associated with a procedure.
  • the electronics and sensors may include, but not limited to, force sensors, video or image capture, bioelectric signal sensing, or any combination thereof.
  • any minimally invasive instruments that enter an already aseptic part of the body must be sterile, in order to substantially minimize or prevent patient-to-patient cross- infection.
  • One of the most common method for sterilizing instruments involves the use of an autoclave, either a steam autoclave or a chemical vapour autoclave.
  • Autoclavable minimally invasive instruments have typically been manufactured entirely from stainless steel or other metals that are substantially non-degradable in body fluids.
  • the use of autoclave presents a challenge.
  • Various approaches have been developed to protect the electronics but still allow the minimally invasive instrument to be sterilized.
  • the instrument is enveloped with a disposable cover such that the instrument is never in contact with the patient.
  • a minimally invasive instrument with an altemative sterilization method such as, but not limited to, chemical, UV, or gamma sterilization.
  • an altemative sterilization method such as, but not limited to, chemical, UV, or gamma sterilization.
  • a variation on these two approaches involves having the electronics portion of the surgical device being detachable from the rest of the minimally invasive instrument. Accordingly, the rest of the minimally invasive instrument can be autoclaved and the electronics can either have a disposable cover during the procedure to avoid sterilization all together, or the electronics may be sterilized using an alternative sterilization method.
  • the electronics are completely encased or sealed such that they do not come into contact with moisture, and the electrical components are specially selected to resist heat. The sealing is accomplished by epoxy or adhesive potting or encapsulation, welding, or a combination thereof.
  • At least one sealing element to seal the at least one cavity, such that the at least one sealing element is disposed at any interface between any of the core, the shell, and the shaft.
  • At least one sealing element to seal the at least one cavity, such that the at least one sealing element is disposed at any interface between any of the core, the shell, and the shaft;
  • the enclosure is removably attached to the instrument.
  • an enclosure for an minimally invasive instrument comprising: an autoclavable shell and an autoclavable core, the core
  • first sealing element a first sealing element, a second sealing element and a third sealing element to seal the at least one cavity, such that the first sealing element is disposed at a first interface between the shell and the core; the second sealing element is disposed at any interface between the core and the shaft; and the third sealing element is disposed at any interface between the shell and the shaft.
  • an enclosure for a minimally invasive instrument comprising:
  • an autoclavable shell and an autoclavable core the core circumferentially surrounded by the shell when disposed on a shaft of the minimally invasive instrument to form at least one cavity for housing at least one component;
  • At least one sealing element to seal the at least one cavity, such that the at least one sealing element is disposed at any interface between any of the core, the shell, and the shaft;
  • the enclosure being removably attached to the instrument; and whereby the at least one sealing element exerts a sealing force perpendicular to the shaft such that a seal between the shell and an core is maintained without additional forces or fasteners.
  • an instrument comprising:
  • an enclosure comprising:
  • At least one component housed in the at least one cavity the at least one component being communicatively coupled to at least one external device via a substrate comprising an electrical conductive medium;
  • At least one sealing element to seal the at least one cavity, such that the at least one sealing element is disposed at any interface between any of the core, the shell, and the shaft;
  • the substrate comprising the electrical conductive medium is releasably connected to the at least one component within the enclosure, and traverses any interface between any of the core, the shell, and the shaft, without affecting the integrity of the seal; and wherein the enclosure is removably attached to the instrument.
  • the enclosure allows autoclaving of the entire device, and facilitates quick, non-destructive, tool-less access to the electronics for operation such as, but not limited to, battery replacement, calibration, repair, component replacement or upgrade, and/or any combination thereof.
  • Figure la shows an exploded view of an instrument, in one exemplary implementation
  • Figure lb shows an exploded view of an enclosure on a medial portion of a shaft of the instrument of Figure la, in one exemplary implementation
  • Figures 2a to 2d show cross sectional views of an enclosure on a shaft of the instrument with various sealing configurations, in other exemplary implementations;
  • Figure 3 shows a cross sectional view of an enclosure on a shaft of the instrument with a plurality of shelled cavities, in another exemplary implementation
  • Figure 4 shows a cross sectional view of an enclosure on an end of the shaft of the instrument, in another exemplary implementation
  • Figure 5a shows a cross sectional view of an enclosure on a medial portion of a shaft of the instrument and separable from the instrument, in another exemplary implementation
  • Figure 5b shows a cross sectional view of an enclosure on a medial portion of a shaft of the instrument and separable from the instrument, in another exemplary implementation
  • Figure 6 shows a cross sectional view of an enclosure on a shaft of the instrument and is separable from the instrument, in yet another exemplary implementation.
  • FIG. 1 shows an exemplary instrument 10, such as a minimally invasive instrument for use in minimally invasive procedures.
  • elongate medial shaft body 12 having thereon enclosure 13 accommodating components, such as device module 14, and power source 16.
  • Enclosure 13 comprises core 20 on shaft body 12, and shell 22, such that core 20 is received by shell 22.
  • Core 20 further comprises first sealing channel 24 which receives first sealing element 25 to sealingly engage core 20 to shell 22, and shell 22 comprises second sealing channel 26 which receives second sealing element 27 to sealingly engage shell 22 to shaft body 12 by second sealing channel 26.
  • shell 22 sealingly engaged to core 20 cavity 28 is formed therebetween.
  • Cavity 28 may include multiple compartments 29, 30 which can accommodate components, such as device module 14, and power source 16, comprising batteries and associated circuitry.
  • Sealing elements 25, 27 may comprise any suitable element capable of providing a seal to substantially minimize or prevent ingress of fluid into cavity 28.
  • enclosure 13 comprises shell 22 and core 20, such that core 20 is circumferentially surrounded by shell 22, and both shell 22 and core 20 surround medial shaft body 12 of the minimally invasive instrument 10.
  • shell 22, core 20, and/or shaft 12 are sealingly engaged to each other by sealing elements 25, 27, such that cavity 28 is sealed.
  • the one or more seals are created by two or more sealing elements 25, 27 placed circumferentially about either or both of core 20 or shell 22.
  • sealing element 25 is pinched between shell 22 and core 20, and sealing element 27is pinched between shell 22 and shaft 12, respectively, thereby creating the seals.
  • one or more sealing elements 25, 27 is circular to evenly distribute the pinching force which creates the one or more seals.
  • the first sealing element 25 is formed by an O-ring on core 20 which is pinched by the shell 22, while the second sealing element 27 is formed by an internal O-ring on the shell 22 which is pinched by the shaft 12.
  • O-rings 25, 27 are used, the circular, circumferential interface of sealing channels 24, 26 mimics the rated configuration of O-rings 25, 27 which allows the extensive testing and technical standards of standard O-rings to be applied to the design of the enclosure 13 in order to improve reliability and robustness.
  • sealing elements 25, 27 may be implemented by a combination of fixing either or neither of core 20 or shell 22 to shaft 12 and by having the two or more sealing elements 25, 27, and 31, on either core 20 or shell 22, or both.
  • Components inside sealed cavity 28 may communicate with other systems or sensors outside of the enclosure 13 by means of, but not limited to, mechanical transmission, acoustic transmission, optical transmission, radio transmission, flexible circuit board, electrical wires, electrical spring contacts, magnetic coupling, capacitive coupling, or any combination thereof, and using sealing methods where required.
  • the method of communicating with other systems or sensors outside enclosure 13 comprises a flexible circuit board passed between one or more sealing elements 25, 27 and their respective pinching surfaces such that the thin profile of the flexible circuit board does not break the seal.
  • a component, such as device module 14 comprises a wireless transceiver, analog frontend, and battery 18, and communicates with a force sensor on the surface of enclosure 13.
  • Device module 14 or a selection thereof may or may not be additionally protected against moisture by a conformal coating, epoxy, or similar.
  • enclosure 13 may have a plurality of shells 40, 41 and core 42 sealed together by sealing element 43 received in sealing channel 44; sealing element 45 received in sealing channel 46; sealing element 47 received in sealing channel 48; and sealing element 49 received in sealing channel 50, as shown in Figure 3.
  • a sealed cavity 51 is formed between shells 40, 41 and core 42 and may include multiple compartments as desired, such as compartments 52 and 53.
  • Enclosure 13 may also include components (not shown) within the sealed cavity 51 protected with other protection methods such as, but not limited to, potting, conformal coating, shielding cans, cracked ferrite, conductive tap, or any combination thereof.
  • FIG 4 there is shown a portion of instrument 10 comprising enclosure 72 with core 74 and shell 76, at one end 78 of shaft 80 of instrument 10, in another exemplary implementation.
  • Enclosure 72 comprises a single cavity 82 sealed by a single sealing element 84 received by sealing channel 85.
  • sealing element 84 is an O-ring which is pinched by shell 76.
  • Components (not shown) in cavity 82 communicate with sensing elements associated with instrument 10 via a flexible circuit board, such as conductive sensor film 83.
  • sensor film 83 comprises a substrate with a conductive medium, such as metal traces, coupled to sensing elements (not shown), to transfer signals between the sensing elements, or other devices associated with instrument 10, such as end effectors, and the components in cavity 82.
  • sensor film 83 is placed onto elongate shaft body 80, and secured thereto by attachment means.
  • the substrate is relatively thin, and is secured onto the elongate shaft body 80 without any protrusions or flaps, such that sensor film 83 is flush with shaft 80, and such that the integrity of any seal formed between enclosure 72 and shaft 80 is not compromised.
  • enclosure 72 is pushed onto proximal end 78 of instrument 10 via an opening 86 in core 74 into core bore 88, until proximal end 78 abuts end wall 89 of core bore 88, and sensor film 83 is connected to components via a connection interface (not shown).
  • instrument 10 lacks a handle at proximal end 78, and thus enclosure 72 may be suitable for any similarly-configured instrument that are handheld or held between the thumb and one or more fingers, e.g. a pencil grip, such as dental instruments or surgical instruments.
  • enclosure 72 including components, such as device module(s) and power source, may be removably attached to proximal end 78 of shaft body 80 (as indicated by the double arrow in Figure 4). Accordingly, instrument 10 may be sterilized separately or independent of enclosure 72.
  • enclosure 72 may be a disposable, which may be discarded after a single use or after a predetermined number of uses.
  • enclosure 72 is associated with elongate shaft body 80 with proximal end 78 and a distal end with an end effector assembly operable by manipulation of actuator mechanism (not shown) at proximal end 78. Accordingly, actuator mechanism and end effector assembly are interconnected via a push rod or wire (not shown) within elongate shaft body 80.
  • Proximal end 78 comprises mechanical stop 90
  • enclosure 72 comprises cavity 92 sealed by three sealing elements 94, 96 and 98, received by sealing channels 100, 102 and 104, respectively.
  • the first seal is formed by pinching sealing element 94 between shell 76 and core 74; the second seal is formed by pinching sealing element 96 between core 74 and instrument shaft 80; and the third seal is formed by pinching sealing element 98 between shell 76 and instrument shaft 80.
  • Both shell 76 and core 74 are movable thereby allowing the entire enclosure 72 to be removably separable surgical instrument 10 (as indicated by the double arrows in Figure 5a). Accordingly, mechanical stop 90 limits lateral motion of enclosure 72 along shaft 80, and allows for proper positioning of enclosure 72.
  • enclosure 72 of Figure 5a comprises components, such as device module(s) and power source(s) in cavity 92, and components communicate with sensing elements associated with instrument 10 via a flexible circuit board, such as conductive sensor film 106.
  • sensor film 106 comprises a substrate with a conductive medium, such as metal traces, coupled to sensing elements (not shown), to transfer signals between the sensing elements, or other devices associated with instrument 10, such as end effectors, and the components in cavity 90.
  • Sensor film 106 is placed onto elongate shaft body 80, and secured thereto by attachment means.
  • the substrate is relatively thin, and is secured onto the elongate shaft body 80 without any protrusions or flaps, such that is sensor film 106 is flush with shaft 80, and such that the integrity of any seal formed between enclosure 72 and shaft 80 is not compromised.
  • Sensor film 106 comprises end 108 with a series of spaced apart, electrically isolated, metallized rings 110 wrapped around shaft body 80, and core 74 comprises a corresponding series of spaced apart, resiliently biased electrical contacts 112, such as spring loaded pogo-stick type contacts, coupled to the device module. Via electrical interface 113 formed between the spring loaded pogo-stick type contacts 112 electrical signals or power are transferred between the components and metallized rings 110 coupled to sensor film 106, which is in turn coupled to the sensing elements.
  • enclosure 72 when enclosure 72 abuts mechanical stop 90 then spring loaded pogo-stick type contacts 112 are properly aligned with metallized rings 110, and therefore an electrical connection is effected therebetween.
  • spring loaded pogo-stick type contacts 112 are caused to always make contact with metallized rings 110. Accordingly, even if enclosure 72 is rotated about shaft 80, the electrical contact between spring loaded pogo-stick type contacts 112 and metallized rings 110 is maintained, as long as enclosure 72 is properly positioned. Accordingly, enclosure 72 can be easily applied to instrument 10 and positioned for proper interface with metallized rings 110 without having to deal with alignment issues, with minimal hand-eye coordination being required.
  • Proximal end 78 comprises mechanical stop 90
  • enclosure 72 comprises cavity 92 sealed by two sealing elements 120 and 122, received by sealing channels 124 and 126, respectively.
  • the first seal is formed by pinching sealing element 120 between shell 76 and core 74; second seal is formed by pinching sealing element 122 between core 74 and shell 76.
  • Both shell 76 and core 74 are movable thereby allowing the entire enclosure 72 to be removably separable surgical instrument 10 (as indicated by the double arrows in Figure 5b). Accordingly, mechanical stop 90 limits lateral motion of enclosure 72 along shaft 80, and allows for proper positioning of enclosure 72, as described above.
  • enclosure 72 of Figure 5b comprises components, such as device module(s) and power sources in cavity 92, and the components communicate with sensing elements associated with instrument 10 via a flexible circuit board, such as conductive sensor film 130.
  • sensor film 130 comprises end 132 with a series of spaced apart, electrically isolated, metallized rings 134 wrapped around shaft body 80, and core 74 comprises a corresponding series of spaced apart, resiliently biased electrical contacts 136, such as spring loaded pogo-stick type contacts, coupled to the device module.
  • spring loaded pogo-stick type contacts 136 Via electrical interface 137 formed between spring loaded pogo-stick type contacts 136 and metallized rings 134, electrical signals or power are transferred between the components and sensor film 130 coupled to the sensing elements, or other devices associated with instrument 10.
  • the spring loaded pogo-stick type contacts 136 allow for the transfer of electrical signals or power between the device module and metallized rings 134 coupled to sensor film 130, which is in turn coupled to the sensing elements.
  • spring loaded pogo-stick type contacts 136 are properly aligned with metallized rings 134, and therefore an electrical connection is effected therebetween.
  • enclosure 72 can be easily applied to instrument 10 and positioned for proper interface with metallized rings 134 without having to deal with alignment issues, as described above.
  • Enclosure 72 comprises a single cavity 140 sealed by two sealing elements 142 and 144, received by sealing channels 146 and 148, respectively.
  • the first seal is formed by pinching sealing element 142 between core 74 and shaft 80
  • the second seal is formed by pinching sealing element 144 between core 74 and shell 76.
  • Both shell 76 and core 74 are movable thereby allowing the entire enclosure 72 to be removably separable surgical instrument 10 (as indicated by the double arrows in Figure 6).
  • components in cavity 140 communicate with sensing elements and other devices associated with instrument 10 via a flexible circuit board, such as conductive sensor film 150.
  • sensor film 150 comprises a substrate with a conductive medium, such as metal traces, coupled to sensing elements (not shown), to transfer signals between the sensing elements, or other devices associated with instrument 10, such as end effectors, and the components in cavity 140.
  • sensor film 150 is placed onto elongate shaft body 80, and secured thereto by attachment means.
  • the substrate is relatively thin, and is secured onto the elongate shaft body 80 without any protrusions or flaps, such that sensor film 150 is flush with shaft 80, and such that the integrity of any seal formed between enclosure 72 and shaft 80 is not compromised.
  • enclosure 72 is pushed onto proximal end 78 of instrument 10 via an opening 152 in core 74 into core bore 154, until proximal end 78 abuts end wall 156 of core bore 154, and sensor film 150 is connected to device module via a connection interface 158.
  • instrument 10 lacks a handle at proximal end 78, and thus removable enclosure 72 may be suitable for any similarly- configured instrument that are handheld or held between the thumb and one or more fingers, e.g. a pencil grip, such as dental instruments or surgical instruments.
  • enclosure 72 including components, such as device module(s) and a power source, may be removably attached to proximal end 78 of shaft body 80 (as indicated by the double arrow in Figure 6).
  • instrument 10 may be sterilized separately or independent of enclosure 72.
  • enclosure 72 may be a disposable, which may be discarded after a single use or after a predetermined number of uses. Similar to the exemplary embodiment shown in Figure 4 and Figures 5a and 5b, the components in cavity 140 of instrument 10 of Figure 6, communicate with sensing elements associated with instrument 10 via conductive sensor film 150 via interface 158.
  • sensor film 150 comprises one end 160 with a series of spaced apart, electrically isolated, metallized rings 162 wrapped around shaft body 80, and core 74 comprises a corresponding series of spaced apart, resiliently biased electrical contacts 164, such as spring loaded pogo-stick type contacts, coupled to the components, such as a device module in enclosure 72. Via electrical interface 158 formed between spring loaded pogo-stick type contacts 164 and metallized rings 162, electrical signals or power are transferred between the components and sensor film 150 coupled to the sensing elements, or other devices associated with instrument 10.
  • the core and the shell are composed of biocompatible material that is capable of resisting autoclaving steam, temperatures, and pressures such as, but not limited to, polyether ether ketone (PEEK), polyetherimide (PEI), polyphenylsulfone (PPSF), polysulfone, stainless steel, titanium, PTFE, FEP, silver, gold, platinum, palladium, or any combination, lamination, coating, composite, or alloy thereof.
  • PEEK polyether ether ketone
  • PEI polyetherimide
  • PPSF polyphenylsulfone
  • stainless steel titanium, PTFE, FEP, silver, gold, platinum, palladium, or any combination, lamination, coating, composite, or alloy thereof.
  • sealing material may be, but is not limited to, fluorosilicone, FEP-coated silicone, perfluoroelastomer (FFKM/FFPM), ethylene propylene diene monomer (EPDM), polytetrafluoroethylene (PTFE), or any combination, composite, or coating thereof.
  • Sealing elements 25, 27, 43, 47, 84, 94, 98, 102, 104, 120, 122, 142, and 144 may be made easily removable such that less autoclave resistant materials such as silicone can be regularly replaced.
  • enclosure 13 or enclosure 72 comprise an enclosure material selected to fulfill a variety of requirements, such as physical protection for the components, and sealing off the components from the elements during autoclave sterilization, or during a procedure, and offering resistance to alternative sterilization methods such as, but not limited to, chemical, UV, or gamma sterilization.
  • the enclosure material is radiolucent, such that the components may communicate wirelessly using radio waves to an external device through the radiolucent enclosure material.
  • the enclosure material may include association with an antenna coupled to the components.
  • the antenna may be embedded in the enclosure material, or the antenna may be affixed on the exposed surface of the enclosure material.
  • the enclosure material comprises non-magnetic and non-conductive properties.
  • Other additional requirements comprise providing electrical shielding from radiated, conductive, capacitive, or inductive/magnetic interference or noise.
  • enclosure 13 or 74 acts as a capacitive touch interface or button.
  • External devices comprise any one of input/output devices affixed on an exterior of enclosure 13, sensing elements affixed on an exterior of enclosure 13, other instruments, and diagnostic devices and computing devices.
  • external device and enclosure material comprise male and female coupling halves, respectively.
  • the male coupling half of the external device comprises magnetic means therein and fixed electrical contact means proj ecting beyond one face thereof.
  • the female coupling half of the enclosure material has magnet means therein for cooperation with the magnet means in the male coupling half for holding the coupling halves together, and electrical contact means. When the coupling halves are brought together, the magnet means holds the coupling halves together against relative displacement therebetween, the electrical contact means of the external device and the electrical contact means of the enclosure materials are in substantial alignment with each other to make electrical connection therebetween.
  • the magnetic self- aligning electrical connectors allow for quick and easy connections with only minimal hand and eye coordination required.
  • the case material is used as capacitive touch interface as aforementioned in the selection of enclosure materials.
  • the components accommodated by the enclosure 13 or 72 comprises any one of: electronic devices, electronic components, printed circuit board, electronic module, integrated chip, a Lab-on- Chip, electronic circuitry, power source, power circuitry, and a battery.
  • the enclosure material may comprises a display for relaying information to a clinician.
  • the display may include, but is not limited to, ceramic LEDs or LCD screen.
  • the display may use a sealed protective light transmitting layer comprising of, but not limited to, glass, PEI, polyimide, polycarbonate, or any combination or lamination thereof.
  • the core and the shell are fixed to the shaft by, but not limited to, sealing elements, ultrasonic welding, epoxy, cyanoacrylate, urethane adhesive, acrylic adhesive, solvent welding, set screw, mechanical interlock, or any combination thereof.
  • the core and the shell are sealed to create a cavity within the enclosure by, but not limited to, sealing elements, ultrasonic welding, epoxy, cyanoacrylate, urethane adhesive, acrylic adhesive, solvent welding, set screw, mechanical interlock, or any combination thereof.
  • the enclosure may be affixed to the shaft by ultrasonic welding, epoxy, cyanoacrylate, urethane adhesive, acrylic adhesive, solvent welding, set screw, mechanical interlock, or any combination thereof. Accordingly, the instrument and the enclosure are inseparable and may be sterilized together as one unit.
  • the core and the shell are sealed to create a cavity within enclosure by, but not limited to, sealing elements, ultrasonic welding, epoxy, cyanoacrylate, urethane adhesive, acrylic adhesive, solvent welding, set screw, mechanical interlock, or any combination thereof.
  • the minimally invasive instrument 10 described in the respective exemplary implementations of Figures 4, 5a, 5b. and 6, comprise an autoclavable enclosure with an electronics module sealed in at least one cavity and enclosure material similar to the exemplary implementation of Figures lb, 2a-2d and 3.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Pathology (AREA)
  • Electrotherapy Devices (AREA)

Abstract

La présente invention concerne une enceinte destinée à un instrument minimalement invasif, l'enceinte consistant en une coque autoclavable et un noyau autoclavable, le noyau étant entouré sur la circonférence par la coque lorsqu'il est disposé sur un arbre de l'instrument minimalement invasif pour former une cavité destinée à loger au moins un composant ; en un premier élément d'étanchéité, un deuxième élément d'étanchéité et un troisième élément d'étanchéité pour sceller la ou les cavités, de sorte que le premier élément d'étanchéité est situé au niveau d'une première interface entre la coque et le noyau ; le deuxième élément d'étanchéité est situé au niveau d'une quelconque interface entre le noyau et l'arbre ; et le troisième élément d'étanchéité est situé au niveau d'une quelconque interface entre la coque et l'arbre.
PCT/CA2018/050467 2017-04-18 2018-04-18 Enceinte autoclavable destinée à un instrument minimalement invasif Ceased WO2018191821A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762486800P 2017-04-18 2017-04-18
US62/486,800 2017-04-18

Publications (1)

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WO2018191821A1 true WO2018191821A1 (fr) 2018-10-25

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100078583A1 (en) * 2008-09-29 2010-04-01 Fujifilm Corporation Radiation image capturing system
US20140012237A1 (en) * 2012-07-09 2014-01-09 Covidien Lp Surgical adapter assemblies for use between surgical handle assembly and surgical end effectors
WO2014121116A2 (fr) * 2013-02-01 2014-08-07 Deka Products Limited Partnership Endoscope équipé d'une caméra avec fonction panoramique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100078583A1 (en) * 2008-09-29 2010-04-01 Fujifilm Corporation Radiation image capturing system
US20140012237A1 (en) * 2012-07-09 2014-01-09 Covidien Lp Surgical adapter assemblies for use between surgical handle assembly and surgical end effectors
WO2014121116A2 (fr) * 2013-02-01 2014-08-07 Deka Products Limited Partnership Endoscope équipé d'une caméra avec fonction panoramique

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