WO2014131100A1 - Dispositivo de identificação portátil, objetos cirúrgicos com marcadores magnéticos, método de identificação de objetos cirúrgicos com marcadores magnéticos e sistema de prevenção de retenção de objetos cirúrgicos com marcadores magnéticos - Google Patents
Dispositivo de identificação portátil, objetos cirúrgicos com marcadores magnéticos, método de identificação de objetos cirúrgicos com marcadores magnéticos e sistema de prevenção de retenção de objetos cirúrgicos com marcadores magnéticos Download PDFInfo
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- WO2014131100A1 WO2014131100A1 PCT/BR2014/000069 BR2014000069W WO2014131100A1 WO 2014131100 A1 WO2014131100 A1 WO 2014131100A1 BR 2014000069 W BR2014000069 W BR 2014000069W WO 2014131100 A1 WO2014131100 A1 WO 2014131100A1
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- Prior art keywords
- surgical
- portable identification
- identification device
- objects
- magnetic
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
-
- 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
- A61B90/90—Identification means for patients or instruments, e.g. tags
-
- 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
- A61B90/90—Identification means for patients or instruments, e.g. tags
- A61B90/98—Identification means for patients or instruments, e.g. tags using electromagnetic means, e.g. transponders
-
- 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
- A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/081—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices the magnetic field is produced by the objects or geological structures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10366—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
- G08B13/2451—Specific applications combined with EAS
- G08B13/2462—Asset location systems combined with EAS
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- 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
- A61B2090/0804—Counting number of instruments used; Instrument detectors
-
- 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
- A61B2090/0804—Counting number of instruments used; Instrument detectors
- A61B2090/0805—Counting number of instruments used; Instrument detectors automatically, e.g. by means of magnetic, optical or photoelectric detectors
-
- 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
- A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
- A61B2090/3954—Markers, e.g. radio-opaque or breast lesions markers magnetic, e.g. NMR or MRI
-
- 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
- A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
- A61B2090/3954—Markers, e.g. radio-opaque or breast lesions markers magnetic, e.g. NMR or MRI
- A61B2090/3958—Markers, e.g. radio-opaque or breast lesions markers magnetic, e.g. NMR or MRI emitting a signal
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V15/00—Tags attached to, or associated with, an object, in order to enable detection of the object
Definitions
- the present invention is in the field of Electronics applied to Medicine (including Veterinary Medicine), especially in the area of Medical Physics, since it refers to a portable surgical object identification device retained for use in surgical centers, with the aim of to detect objects retained in the patient due to surgeries, especially after cavitary surgeries.
- the invention further relates to surgical objects with magnetic markers and their method of identification, in addition to the surgical object prevention system with magnetic markers.
- US5902238A and US5902238A1 disclose Medical distal tubes with localized and oriented marker along the tube and apparatus for locating said marker within a patient's body to guide the passage of the distal tube to specific site in the patient's body.
- the purpose of the method is to enable distal tube placement within the patient's body where the magnetic dipole is located by a sensing apparatus which senses the static field strength gradient of the magnet located at the end of the distal tube with a fixed orientation along of the interior of the distal tube.
- This method uses a generator to trigger the detection field that is composed of two signals which are used together for the location and determination of the marker orientation.
- the present invention discloses a high sensitivity geomagnetic sensor arranged in a suitable arrangement so as to be insensitive to the orientation of the Earth's magnetic field, detects the presence of a nonuniform perturbation caused by the marker. Therefore, it does not use excitation as is the method of the cited patent.
- Our goal is to indicate the presence of the marker inside the patient's body.
- the elements are different: passive sensor in place of active sensor, identification of local field deformation absolutely, not aiming determination of specific intensity and direction.
- the document US 2007/0285249 Al-Method, apparatus and article for the detection of transponder tagged objects, for example during surgery - refers to post-surgery retained body identifiers based on the capture of information generated by tags sensitive to magnetic fields.
- the document also provides for the use of other frequencies of internal use of labels.
- the disadvantages of this document relate to the need for a prior label manufacturing system, which increases the costs of implanting the invention and obliges health establishments to constantly buy new labels scheduled; another disadvantage of the invention described in said document is that the apparatus requires a wheel table, which within a surgical and post-surgical center would be yet another apparatus to be used, transported and switched on even for a short time, which may come to cause a restriction of the use of the equipment by the team, especially in surgical centers that have limited space.
- Method for tracking surgical items eg surgical sponges involves triggering alarm to indicate surgical item is moving outside allowable zone towards area in which surgical item are not used - describe a system of capturing information generated by labels sensitive to magnetic fields. Said method is based on the capture of information generated by tags sensitive to magnetic fields. These systems are restricted because they consist of high cost materials that impact the total cost of the system.
- US6,777,623 B2- System and method of tracking surgical sponges - describes an identification system that uses radiopaque markers added to gases and / or cloths used in surgical procedures after use.
- the disadvantages of the prior art relate to the fact that the implementation of said invention increases the operating costs of surgical procedures as well as maintenance and operational control expenses.
- Another disadvantage of this invention is that it requires a wheel table, which within a surgical center would be an apparatus of difficult transportation or limiting the operational space of the surgical center.
- WO2009151946-A3 - describe a system that has an identification transponder transmitting a signal identification in which the transponder has an identification transponder response to a question mark.
- the present invention solves the problem of purchasing custom labels and also solves the problems of sterilization temperature resistance, ease of transport and rapid utilization, can be sterilized by the methods used in the medical field, meets the public health system cost needs , the materials used can be recycled, it reduces operational cost, as it does not require skilled labor, increase the quality of the procedure regarding tired labor after long surgeries, does not use previously patented device, does not require alteration and or installations in the room surgery.
- the present invention relates to a portable identification device, surgical objects with magnetic markers, method of identification of surgical objects with magnetic markers and system for preventing the retention of surgical objects with magnetic markers.
- the present invention can be used in surgical centers, with the aim of detecting surgical elements / objects retained in the patient after surgeries.
- the present invention aims to provide support instrumental in locating surgical objects retained within cavities of the body to detect oblivious artifacts after a surgical act, by means of specific device and objects and method and system for their identification.
- the present invention has been developed in view of the need to develop a cost solution relatively low as well as easy to use, that could be incorporated into the public and private surgical services, to reduce the number of objects retained after cavitary surgery.
- the present invention has been conceived with the aim of providing surgical and management teams of the health system with an easy-to-use tool, inexpensive and without the need for specialized training (basically for handling the equipment it is only sufficient to read its simplified operating manual), to detect the presence of possible surgical objects retained, whether or not ferromagnetic.
- TAG can be understood in a generic way, like any element, incorporated in a product or object, for example, that can make the function of flag or identifier of the presence of objects to be traced.
- RFID Radio Frenquency Identification Device
- TAG's can be of various types, such as ferromagnetic, optical, inductive, capacitive, radiopaque, isotope, chemical marker.
- Figure 1A is a schematic representation of the retained surgical object identification apparatus.
- Figure 1B is a schematic representation of the retained surgical object identification apparatus.
- Figure 2A is a schematic lower representation of the apparatus, showing the face of the sensing surface facing the field.
- Figure 2B is a schematic top view of the apparatus, showing the face of the sensing surface facing the user.
- Figure 3 is a schematic representation of chemical adhesion of the electromagnetic marker to the surgical object.
- Figure 4 is a schematic representation of mechanical attachment of the electromagnetic marker to the surgical object.
- Figure 5 is a schematic representation of the encapsulation of the electromagnetic marker in biocompatible resin with holes.
- Figure 6 is a schematic representation of the electromagnetic marker specifically manufactured to be sewn into surgical tissues.
- Figure 7 is a schematic perspective view of the retained surgical object identification apparatus.
- Figure 8 is a schematic representation, in top view, of the retained surgical object identification apparatus.
- Figure 9 is a schematic representation, in a lower view, of the retained surgical object identification apparatus.
- Figure 10 is a schematic side view of the retained surgical object identification apparatus.
- Figure 11 is a schematic representation, in front view, of the retained surgical object identification apparatus.
- Figure 12 is a schematic representation, in a later view, of the retained surgical object identification apparatus.
- Figure 13 is a schematic, top perspective view of the retained surgical object identification apparatus.
- Figure 14 is a schematic, bottom perspective representation of the retained surgical object identification apparatus.
- Figure 15 is a technical flow chart representative of the operation of the method of identification of the present invention.
- the present invention relates to a portable identification device, surgical objects with magnetic markers, surgical object retention prevention system with magnetic markers, and method of identifying surgical objects with magnetic markers and can be used in surgical centers with to detect surgical elements / objects (5) retained in the patient after surgeries.
- the portable identification device (1) comprises a gripper (7); source of energy (11); power on / off button (10); luminous alarms (8); circular contact pins (12); sensor surface (3); programmable logic device; sound alarms; electronic warning device (2).
- Said device (1) may additionally contain latex protective film and a sound alarm (9) on / off button.
- Said device can be visualized by means of its graphic representation shown in figures IA, 1B, 2A, 2B, 7, 8, 9, 10, 11, 12, 13 and 14.
- Said device (1) is preferably in the form of a table tennis racket and preferably has on its gripper (7) a housing for accommodating a power source (11), which may or may not be rechargeable.
- the device also requires a recharging base.
- the power source 11 may for example be a battery, a supercapacitor, an AC-DC converter, among other types of voltage sources.
- An on / off push-button (10) is preferably located under a protective film, allowing the device (1) to be switched on and off.
- the programmable logic device can be: microprocessor, microcontroller; microprocessor and / or microcontroller; CPLD (Complex Programmable Logic Device); FPGA (Field Programmable Gate Array); PAL (Programmable Array Logic) and ASIC (Application Specific Integrated Circuit)
- the luminous alarms (8) of said device (1) are preferably LEDs and are preferably located at the upper end of the gripper (7) and vary between two and three, preferably three in number, as shown in the figure 1B.
- the light alarms (8) indicate that the probe is switched on; that there is retained object (5); and / or that the power source (11) is uncharged.
- the left-hand light (8) indicates the probe switched on
- the central light (8) indicates the presence of retained object (5) in the prospecting field
- the right-hand warning light (8) indicates that the power source (11) is uncharged.
- the electronic warning device (2) is a transducer, which activates alarms which are preferably sonorous and luminous.
- a variable cadence sound stimulus indicates the need for recharging.
- outlets or plugs access the power source charging system (11), providing electrical contact to the power source charger (11).
- Said device (1) is portable and small in size, not taking up much space in the operating room. Its approximate dimensions range from 100X75x15mm to 600X400x300mm, being preferably 300X200xl50mm
- the sensor surface 3 is located in the preferably circular area of the portable identification device 1, as can be seen in Figures 1A, 1B, 2A and 2B.
- the sensor surface (3) is composed of the sensing elements, which identify the magnetic markers (4).
- the sensor surface (3) of the portable identification device (1) identifies the presence of the material by means of the perturbation generated by the magnetic field of the magnetic marker (6) on geomagnetic sensor elements, which alter the electrical characteristics of a measuring bridge providing signal to be measured by a microprocessed or microcontrolled system.
- the disturbance of the electrical signal caused by the magnetic field of the magnetic marker (6) is compared by the programmable logic device with safety levels and after repeated and confirmed measures of disparity between the programmable logic device provides sound indication by means of sound stimuli in patterns that indicate the presence and approximate location of the object.
- the presence of the object is also indicated, via luminous signaling, by means of a cadence of ignition of the light by the luminous alarms.
- Said device (1) is constructed in an airtight manner, allowing its sanitization after use with the use of cleaning products.
- Said device (1) is preferably operated by means of a power source (11) and an internal supervision system which warns when it is necessary to recharge the power source, using sound and light signaling.
- the power source (11) may or may not be rechargeable. If it is rechargeable, to recharge the power source (11), a recharge base is required which is composed of a mechanical system where the portable identification device (1) is to be inserted to receive alternating electric current from the commercial electric grid which will be used to charge the power source (11) located therein.
- the power source charging base supplies AC power to the power source charger (11) which is preferably located in the gripper (7) of the portable identification device (1).
- a converter preferably full-range AC / AC push-pull type, provides mean AC level of 5V in negative cycles as positive.
- the AC / AC converter is full range from lOOVac to 240Vac, and consumes 0, 5A.
- the handle 7 of the portable identification device 1 fits into the power source charging cradle and the metal contacts of the base are connected to the pins of the portable identification device 1 located on the handle 7, .
- Charging circuits are current limited to prevent damage to both the charger and the locating instrument (probe).
- the magnetic markers (4) are of sintered material and are coated with biocompatible acrylic resin, which protects the patient from contact with the material from which it is made.
- the magnetic markers 4 are attached to surgical members 5 such as surgical instruments and materials, fabrics, gases, clothing, bandages, plastics, rubber elements, tweezers, scalpels, scissors, spacers, Needle holders, compresses, drains, gloves, probes, catheters, and any other material used in surgical environments.
- the magnetic markers (4) do not require the power to operate.
- the magnetic markers 4 are preferably made of material called Neodymium, Iron, Boron or a mixture thereof by means of a sintering process and can be attached to the surgical elements 5 by chemical adhesion, mechanical fastening, or fabricated together with the fabrics or sewn, allowing a wide spectrum of possibilities of application.
- the magnetic markers (4) are incorporated into the surgical elements / objects (5), preferably by means of sewing.
- biocompatible adhesives are used which adhere and encapsulate the magnets, and these are attached to the surgical objects, as can be seen in figure 3, preventing them from being reworked after their purchase.
- the electromagnetic markers (4) are inserted at the time of instrument manufacture and are taken into account in the design of the instruments or after their manufacture a housing suitable for the electromagnetic marker (4), as can be seen in figure 4.
- the first possible embodiment is the encapsulation of the magnets coated with biocompatible resin with holes to be sewn, as can be seen in figure 5.
- the second possible way is by the manufacture of electromagnetic markers 4 which are preferably sewn, or embedded in the fabric at the time of manufacture.
- the electromagnetic markers 4 shown in Figure 6 may be sewn directly on the fabric, enabling preferably, sewing or embroidery machines to be used for their application to the fabrics, which also enables their application at the time of manufacture of surgical tissues and gases incorporating these in the manufacturing process on the loom, in the wardrobe of the health unit.
- Surgical Object may also be referred to as Surgical Instruments and should be considered as any material that may be employed in the operative event.
- Surgical objects may comprise two major groups: metal and bandages.
- the metal group can be, for example: Tweezers, scalpels, scissors, retractors, needle holders.
- the Penso group can be, for example: Compresses, gauzes, drains, gloves, probes, catheters.
- the surgical object retention prevention system with magnetic markers aims to provide support instruments in locating surgical objects (5) retained inside body cavities to detect forgotten artifacts after a surgical procedure.
- Said system is composed of a portable identification device (1); a recharge base; and surgical objects (5) with magnetic markers (4).
- the retained surgical object identification system (5) is intended to provide support apparatus for locating surgical objects (5) retained within cavities of the body to detect artifacts that are forgotten after surgery.
- the user of the identification system can identify the existence of surgical objects (5) retained obliquely in patients after a surgical procedure occurs as follows: the electromagnetic (4) sintered markers emit a constant magnetic field (6) over time, this magnetic field of the magnetic markers 6 is detected by the portable identification device 1 containing a sensor surface 3 with sensor elements (preferably, geomagnetic sensors).
- the portable identification device (1) identifies the variation in the magnetic field to which the sensing surface is subjected. This variation is then identified by the electronic warning device 2 housed in the gripper 7 of the portable identification device 1 which generates a visual and audible signal indicating the surgical object retained 5 within the patient.
- said device when subjected to the magnetic field of the magnetic markers (4) is unbalanced and this imbalance of the signal is detected. Then, a visual and audible signal is generated by the electronic warning device 2 which triggers the audible and audible alarms 8 indicating that there is a magnetic marker 4 and therefore there is a surgical object 5 on the spot through which the portable identification device (1) has been passed.
- Geomagnetic sensors are devices designed for use in applications linked to positioning and geolocation. Its operation is based on the variation of a resistive characteristic of a material when exposed to magnetic fields. By means of an electric circuit connected to this element we can determine the intensity of the magnetic field applied to the device. By arranging the magnetoresistive elements orthogonally we can obtain the intensity of the magnetic field applied to the object and thus determine the orientation of an object in this field.
- the geo-positioning applications use this type of device to implement the digital electronic compasses used in clocks and other motion-guidance devices in conjunction with accelerometers and other positioning elements.
- the present application patent presents an innovative use of the geomagnetic sensor for locating objects using magnetic markers in conjunction with arrangements of combined geomagnetic sensing elements.
- the presence of the marker is detected based on the presence of the non-uniform magnetic field generated by the marker.
- Geomagnetic sensors have sensitivity to pick up magnetic fields of the order of 0, luT (one tenth of micro Tesla) and can provide linear indication up to the measurement limit of +/- 1000uT (plus or minus one thousand micro Tesla) entering saturation with fields above of this value.
- Neodymium-ferroboron-based magnetic markers to be used in conjunction with the sensor equipment can generate magnetic fields in the order of up to 1.2 Tesla.
- the magnetic field undergoes a sharp drop as we move away from the magnet poles and its field is inversely proportional to the square of the distance.
- distances of up to 30cm between the localization equipment and the marker located inside patients' cavities being important the high sensitivity of the arrangement of sensors for the correct location of the marker.
- the signal processing software generated by the sensor arrangement is responsible for the treatment of the information and measurement rules to ensure the perfect operation of the equipment as well as provide the sound and visual indications of a portable equipment that is easy to use.
- neodymium-ferro-boron markers allows the sterilization of objects by means of autoclaves at temperatures above 150 degrees Celsius.
- magnetic markers can also be used in locating metallic iron objects for applications in accidents where objects may be inside a patient's body due to an explosion and scattering of shrapnel and particles from a projectile such as a grenade or projectile shot.
- the concept of prevention to which the retention prevention system refers is related to the idea that a surgical object does not remain retained in the patient's body after surgery, that is, in the postoperative period.
- the invention does not prevent objects from being inserted into the patient's body but rather that objects are forgotten in the patient's body following a surgical procedure.
- Figure 15 depicts a technical flow chart representative of the operation of the method of the present invention.
- a programmable logic device responsible for the operation of the portable identification device 1 sequentially executes instructions stored in its program memory by means of software which implement the macro operations shown in the diagram of said figure 15.
- the method of identifying surgical objects with magnetic markers comprises the following steps:
- Step 0 - Start is the starting point of the sequential execution of the program and occurs when the key that powers the handheld device is triggered.
- an oscillator with a stable operating frequency and clock for the sequential execution of the operations of the portable identification device (1) begins its operation and system components determine the start of operation in a determined condition of the program where the start of the instruction sequence that will execute the operation diagram shown in figure 1 occurs.
- the element A indicates the point of the restart program of operation that occurs in case a failure condition occurs during the device self-test (1) or by turning the key that connects the power to the portable identification device (1) (Power Switch or Power Switch).
- Step 1 - Program Initialization refers to the set of operations that are designed to organize the necessary elements for the perfect operation of the portable identification device (1), properly configuring the internal programmable components of the portable identification device (1), loading the values of variables necessary for the perfect operation of the portable identification device (1), and all the minor operations required to start the next step of the diagram.
- Step 2 - Operating parameter load refers to the set of operations that are intended to recover from the previous data storage memory the values saved after the interruption of operation to save energy from the internal power source of the portable identification device (1 ), i.e. the rechargeable power source (11) or energy storage element, for example a high capacity storage capacitor.
- the parameter loading allows the operation of the portable identification device (1) to be resumed from the point where it was interrupted when the power source was switched off or in case the device fails due to several factors, for example power condition is insufficient to operate.
- the data storage memory allows the retention of information even in the event of power failure without deterioration of its contents.
- Step 3 - Self-test refers to the set of operations that are intended to verify the perfect operating condition of the portable identification device (1) before starting or restarting the measurement step itself, and ensures that the measurements made by the (1) are within the operating specifications. During the self-test phase a number of test results are stored that will be used in the next step of deciding the self-test result.
- Step 4 - Self Test OK? Refers to the set of operations that are intended to identify the result of the self-test to decide if the portable identification device (1) is in condition to proceed to the element 5 - Indicates failure type, if it does not have condition or for element 6 - Reading the Sensors, if it is in the operating condition.
- Step 5 - Indicates failure type is the set of operations that is intended to indicate by means of the signaling elements present therein, whether they are sound, light, vibrations or combinations thereof, that the portable identification device (1) is not in operating condition and therefore should not be used until the operating condition is restored.
- One of the signaled conditions is the power failure of the internal power source of the portable identification device (1). In the event that the power is insufficient for the safe operation of the portable identification device (1), this condition will be signaled and the power source of the portable identification device (1) shall be recharged.
- Step 6 - Sensor reading is the set of operations that is intended to read the values of the various sensors present in the portable identification device (1) and that will be used to determine the presence of the magnetic marker next to the portable identification device (1). This is done by a set of geomagnetic sensors arranged in a suitable arrangement so as to be insensitive to the orientation of the Earth's magnetic field, which detects the presence of a nonuniform perturbation caused by the marker.
- auxiliary sensors such as, for example, temperature, atmospheric pressure, operating voltages and attitude are used to allow the calibration and linearization of magnetic field measurements.
- Step 7 - Values analysis is the set of operations that is intended to carry out the operations of validation of the readings performed in order to guarantee the quality of the read values of the sensors and perform the treatment thereof to compensate for environmental conditions where the device identification (1) is found.
- the process of identifying the presence of the marker is also performed based on the analysis of the readings performed and the result of the analysis is stored in the non-volatile data memory of the portable identification device (1) for the next step of the operation.
- Step 8 - Field condition signaling is the set of operations that is intended to perform signaling operations of the presence or not of the magnetic marker next to the portable identification device (1).
- the signaling is made by means of sound, light or vibrating elements or combinations between them in order to indicate the situation of the field near the portable identification device (1) and this signaling varies dynamically as the field varies in the vicinity of the portable identification device (1) .
- the signaling is done based on the results of the previous step and changes as the result of sequential analyzes changes during the 014 000069
- Step 9 - Data storage is the set of operations that is intended to preserve the content of read results during the operation of the portable identification device (1) for analyzes or any operation that requires such results, for example for transmission to remote databases, for evaluation or calibration of the devices, among other operations.
- the data is stored in order to efficiently utilize the storage capacity available in the portable identification device (1).
- Step 10 - Remote transmission is the set of operations that is intended to send to an element external to the portable identification device (1), the information during the operation or not.
- This element allows connection of the portable identification device 1 with an external management device or collector which provides new functionalities during operation by means of indicator elements not available on the portable identification device 1 such as video monitors where the field can be shown graphically with a form of where in time, among others.
- the initialization process is started with the self-test sequence.
- the identification device (1) signals (4) by means of the flashing red indicator light that is carrying out the tests.
- the portable identification device shall signal (4) by means of green light signaling and the magnetic marker identification process shall be initiated. If the operating conditions are not satisfactory after the tests, the red LED (4) will remain continuous and the portable identification device (1) must be switched off (3).
- a beep sequence (4) at 0.5s intervals will provide a sound code according to table 1. At the end of the sequence there will be a pause of 2s, restarting the sequence.
- the portable identification device (1) After the self-test, the portable identification device (1) will enter the measurement process (5), seeking to identify the presence of marker. As long as the measured magnetic field is within the threshold considered as normal, ie uniformly distributed field, the portable identification device (1) will signal (4) with beeps of 0.2s and a cadence of 2s between beeps. In addition, a green light signaling (4) will remain on. In the presence of a magnetic marker, the beeps of 0.2s will occur at lower cadences until reaching a maximum cadence of 0.4s when the field reaches maximum intensity. Additionally, the light signaling (4) from green to red will be changed by flashing the luminous signaling every 0.2s with a cadence ranging up to a maximum of 0.4s. In addition, a vibration signaling device (4) will be actuated indicating the presence of the marker.
- the purpose of the identification process is to ensure that each of the objects of the list to be used is previously identified by the portable identification device (1) before being used in the surgical procedure. Each of the utensils should be placed close to the detection area and must be positively identified.
- the identification is made by the presence signaling (4) when approaching the detector of the object to be identified.
- the identification of presence of marker is made by means of a sound signal (4) in the form of beeps with variable cadence, by means of red light signal (4) and by means of vibration. When the marker is moved away from the object of the portable identification device (1) the beep cadence decreases, the light signal changes from red to green and the vibration stops.
- the portable identification device (1) can be switched off (3) to be used at the end of the procedure.
- the identification of objects must be negative, that is, when scanning for objects, no object should be found in the patient.
- scanning if there is an indication of presence, the search must be performed until the marker that causes the indication is found.
- the field measurements made are stored in the internal Memory (2) of the portable identification device (1) and can be transmitted via wireless communication device (7) to a remote terminal where they can be stored or even used for locating the objects by the portable identification device (1) by display on a computer screen.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Surgery (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Pathology (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Molecular Biology (AREA)
- Medical Informatics (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Electromagnetism (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Oral & Maxillofacial Surgery (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Toxicology (AREA)
- Remote Sensing (AREA)
- Artificial Intelligence (AREA)
- Computer Security & Cryptography (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Theoretical Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Human Computer Interaction (AREA)
- Biophysics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Geophysics And Detection Of Objects (AREA)
- Measuring Magnetic Variables (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/771,360 US9861445B2 (en) | 2013-02-28 | 2014-02-27 | Portable device for identification of surgical items with magnetic markers, method for identifying surgical objects with magnetic markers and system for the prevention of retention of surgical items with magnetic markers |
BR112015020441-4A BR112015020441B1 (pt) | 2013-02-28 | 2014-02-27 | Dispositivo de identificação portátil de prevenção de retenção de objetos cirúrgicos com marcadores magnéticos |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRBR1020130047872 | 2013-02-28 | ||
BR102013004787A BR102013004787A2 (pt) | 2013-02-28 | 2013-02-28 | dispositivo de identificação portátil, objetos cirúrgicos com marcadores magnéticos, método de identificação de objetos cirúrgicos com marcadores magnéticos e sistema de prevenção de retenção de objetos cirúrgicos com marcadores magnéticos |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2014131100A1 true WO2014131100A1 (pt) | 2014-09-04 |
WO2014131100A9 WO2014131100A9 (pt) | 2015-01-22 |
Family
ID=51427420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR2014/000069 WO2014131100A1 (pt) | 2013-02-28 | 2014-02-27 | Dispositivo de identificação portátil, objetos cirúrgicos com marcadores magnéticos, método de identificação de objetos cirúrgicos com marcadores magnéticos e sistema de prevenção de retenção de objetos cirúrgicos com marcadores magnéticos |
Country Status (3)
Country | Link |
---|---|
US (1) | US9861445B2 (pt) |
BR (2) | BR102013004787A2 (pt) |
WO (1) | WO2014131100A1 (pt) |
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US20160166173A9 (en) * | 2012-11-16 | 2016-06-16 | Integrated Medical Technologies, Inc. | Device For The Detection Of Metallic Surgical Articles And Harmonic And RFID Tagging Markers |
US10690946B2 (en) * | 2015-08-26 | 2020-06-23 | Apple Inc. | Flexible photonic crystals with color-changing strain response |
US10054465B2 (en) * | 2016-02-22 | 2018-08-21 | Stephen U. Fedtke | Method and system for operating a mobile device using a magnetic sensor |
WO2018064288A1 (en) * | 2016-09-28 | 2018-04-05 | Stryker Corporation | Collapsible detection antenna for surgical articles |
US10341816B2 (en) * | 2017-03-07 | 2019-07-02 | Loplat Co., Ltd. | Method and apparatus of recognizing location of user device |
US10154885B1 (en) | 2017-05-26 | 2018-12-18 | Medline Industries, Inc. | Systems, apparatus and methods for continuously tracking medical items throughout a procedure |
US11234806B2 (en) | 2018-08-17 | 2022-02-01 | Cook Medical Technologies Llc | Data storage on implantable magnetizable fabric |
US11617625B2 (en) * | 2019-03-12 | 2023-04-04 | Medline Industries, Lp | Systems, apparatus and methods for properly locating items |
GB201911009D0 (en) * | 2019-08-01 | 2019-09-18 | Matrasens Ltd | Ferrmagnetic Sensing |
US12059276B2 (en) * | 2019-08-21 | 2024-08-13 | Medline Industries, Lp | Systems, apparatus and methods for automatically counting medical objects, estimating blood loss and/or communicating between medical equipment |
CN115869066A (zh) * | 2021-09-29 | 2023-03-31 | 巴德阿克塞斯系统股份有限公司 | 医疗系统、医疗设备和由医疗系统执行的识别目标医疗设备的方法 |
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- 2013-02-28 BR BR102013004787A patent/BR102013004787A2/pt not_active Application Discontinuation
-
2014
- 2014-02-27 US US14/771,360 patent/US9861445B2/en active Active
- 2014-02-27 BR BR112015020441-4A patent/BR112015020441B1/pt active IP Right Grant
- 2014-02-27 WO PCT/BR2014/000069 patent/WO2014131100A1/pt active Application Filing
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US5879297A (en) * | 1997-05-08 | 1999-03-09 | Lucent Medical Systems, Inc. | System and method to determine the location and orientation of an indwelling medical device |
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Also Published As
Publication number | Publication date |
---|---|
US9861445B2 (en) | 2018-01-09 |
BR112015020441B1 (pt) | 2019-03-06 |
BR102013004787A2 (pt) | 2015-11-24 |
BR112015020441A2 (pt) | 2016-08-23 |
US20160008091A1 (en) | 2016-01-14 |
WO2014131100A9 (pt) | 2015-01-22 |
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