JP2019168765A - Medical material recognition system - Google Patents

Abstract

To provide a medical material recognition system capable of easily and speedily recognizing a medical material to be used for accurate totalization, management and the like.SOLUTION: A medical material recognition system 10 comprises: an imaging unit 12 for imaging product identification information 102 previously applied to a surface of a packaging material of a medical material in a manufacturing stage or a shipping stage to acquire identification information image data; a medical material database 14 in which identification information image data of a plurality of medical material data and the product identification information applied to the packaging material itself of each medical material are previously associated and stored; collating means 16 for recognizing the medical material imaged by the imaging unit 12 by collating the identification information image data acquired by the imaging unit 12 with the identification information image data stored in the medical material database 14.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a medical material recognition system for recognizing medical materials when counting or managing medical materials before or after use.

  Accurately counting and inventorying disposable medical materials such as needles, threads, gauze, scalpels, intubation tubes, etc. used for medical procedures such as surgery is important for billing used patients. is there. Conventionally, as a method for managing the inventory of medical materials, for example, a barcode label is affixed to a medical material, and when the medical material is used, the barcode label is peeled off and collected. A method of reading by a code reader and inputting to a computer for management is known (for example, see the description of the prior art in Patent Document 1). In addition, when compiling medical materials used in surgery, for example, nurses or the like enter the type and number of medical materials in the medical chart by hand, or enter them manually into the computer. The patient was originally charged. In addition, in Patent Document 1, in order to manage medical materials, a peelable two-sheet data label with a barcode is affixed, and one of them is collected in a collection box for inventory management. A method is disclosed in which the other one is attached to a medical record of a patient using the medical material and used for an insurance claim for each patient.

Japanese Patent Laid-Open No. 10-10978

  There are various types of medical materials such as types, manufacturers, sizes, etc., and many medical materials may be used depending on the content of medical practice. Had a description error or omission of a claim. In addition, when managing medical materials using a bar code label or a peelable data label as in Patent Document 1 as in the past, a label with a management bar code is affixed to each medical material. The work is cumbersome and labor intensive, and the cost and labor cost of the label are high. There are many types of medical materials, and there is a risk of human error such as incorrect labeling. In addition, there are problems such as low versatility and practicality because barcode specifications and standards are often different at medical material wholesalers or hospitals.

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a medical material recognition system that can easily and speedily recognize medical materials and can be used for counting and management. .

  In order to solve the above-described problem, the present invention provides an imaging unit that captures product identification information 102 preliminarily applied to one surface of a packaging material 100 itself of medical material at a manufacturing stage or a shipping stage to acquire identification information image data. 12, a medical material database 14 in which a plurality of medical material data and identification information image data of product identification information applied to the packaging material itself of each medical material are stored in association with each other, and the identification acquired by the imaging unit 12 The medical material recognition system 10 is provided with collation means 16 for recognizing the medical material imaged by the imaging unit 12 by collating the information image data with the identification information image data stored in the medical material database 14.

  Further, the collating unit 16 collates the identification information image data based on the entire product identification information (102) formed by any one of the characters, symbols, figures, colors, codes of the medical material packaging material 100, or a combination thereof. When there are a plurality of types of medical material recognized by the whole image collating unit 44 for recognizing the medical material and the whole image collating unit 44, the medical material is supplementarily specified by an element different from the whole product identification information (102). It is good also as having auxiliary recognition means 46.

  In addition, the auxiliary recognition means 46 specifies medical materials using data of any one of characters, symbols, figures, colors, and codes obtained from a part of the identification information image data of the entire product identification information (102) as an element. It is good as well.

  Moreover, the input recognition part 46 which receives a user's input operation is included, and the auxiliary | assistant recognition means 46 is good also as specifying a medical material based on the input operation from the input part 26. FIG.

  In addition, a polarizing filter 26 is installed in front of the lens of the imaging unit 12, and the illumination for illuminating the packaging material 100 of the medical material that is arranged so as to surround the imaging unit 1 and is captured by the imaging unit 12. It is good also as the part 28, Comprising: It is good also as having the illumination part 28 by which polarizing plate 32a, 32b was installed in the irradiation side.

  The illumination unit 28 includes four straight illumination tools 30a to 30d arranged in a rectangular frame shape so as to surround the imaging unit 12, and is arranged on two opposing sides of the square frame shape. A vertical polarizing plate 32a is installed on the irradiation side of the straight illumination tools 30a and 30c, and on the irradiation side of the straight illumination tools 30b and 32d arranged on the other two opposite sides of the square frame shape. A horizontal polarizing plate 32b may be installed.

  The illumination unit 28 includes a ring-shaped illumination tool 54 provided in a circular ring shape so as to surround the imaging unit 12, and a ring-shaped illumination polarizing plate 56 is provided on the irradiation side of the ring-shaped illumination tool 54. It may be installed.

  Moreover, it is good also as having the totaling means 48 which totals the medical material recognized by the collation means 16. FIG.

  According to the medical material recognition system of the present invention, an imaging unit that captures product identification information that is preliminarily applied to one surface of the packaging material itself of the medical material at the manufacturing stage or the shipping stage, and acquires identification information image data; A medical material database in which a plurality of medical material data and identification information image data of product identification information applied to the packaging material itself of each medical material are stored in association with each other, identification information image data acquired by the imaging unit, and medical care Product identification information originally provided on the packaging material itself of the medical material, since it includes a verification means for recognizing the medical material imaged by the imaging unit by comparing the identification information image data stored in the material database By using this as it is and performing image matching based on the product identification information, there is no need to attach a management barcode label or the like separately. It applied not, the cost becomes unnecessary according to a bar code label, can be recognized easily and efficiently recognized medical material present in a large number. As a result, for example, it is possible to accurately calculate and practically use medical materials, billing for patients, inventory management, business management, and the like.

  In addition, the collating means can identify the medical material by collating the identification information image data based on the entire product identification information formed by any of a plurality of characters, symbols, figures, colors, codes of the medical material packaging material, or a combination thereof. A configuration having overall image collating means for recognizing and auxiliary recognizing means for auxiliaryly identifying medical material by an element different from the whole product identification information when there are a plurality of types of medical material recognized by the overall image collating means By recognizing the whole image collating means and the auxiliary recognizing means in two stages, for example, very similar product identification such as product identification information of a slightly different type such as size notation Even when there are a plurality of packaging materials for information medical materials, the medical materials can be recognized quickly and accurately, and the practicality can be improved.

  In addition, the auxiliary recognition means is configured to identify the medical material by using any part of data of characters, symbols, figures, colors, and codes obtained from a part of the identification information image data of the entire product identification information. Thus, since a part of the identification information image data acquired from the imaging unit can be used for auxiliary recognition, the medical material can be recognized efficiently.

  In addition, the auxiliary recognition unit includes an input unit that receives an input operation of the user, and the auxiliary recognition unit can automatically recognize the medical material to some extent by adopting a configuration that specifies the medical material based on the input operation from the input unit. In addition, since the user can determine the medical material in an auxiliary manner according to the situation, the usability of the recognition system and the recognition accuracy of the medical material can be improved.

  In addition, a polarizing filter is installed in front of the lens of the imaging unit, and the illumination unit is disposed so as to surround the imaging unit and illuminates the packaging material of the medical material to be imaged by the imaging unit, By having an illumination unit with a polarizing plate on the irradiation side, it is possible to suppress excessive reflection and reflection of light on the packaging material of medical materials while ensuring sufficient brightness that can be captured by the imaging unit. Therefore, the product identification information can be accurately imaged to obtain the identification information image data, and the medical material can be accurately recognized.

  Further, the illumination unit has four linear illumination devices arranged in a square frame shape so as to surround the imaging unit, and the linear illumination device is arranged on one opposing two sides of the square frame shape. A vertical polarizing plate is installed on the irradiation side of the rectangular frame, and a horizontal polarizing plate is installed on the irradiation side of the straight illuminating device arranged on the other two opposite sides of the square frame shape. It is possible to realize a lighting unit that can ensure sufficient brightness to illuminate the packaging material of medical materials and suppress excessive light reflection with a simple configuration, and can be manufactured at a relatively low cost. it can.

  In addition, the illumination unit has a ring-shaped illuminator provided in a circular ring shape so as to surround the imaging unit, and a ring-shaped illumination polarizing plate is installed on the irradiation side of the ring-shaped illuminator. As a result, it is possible to realize a lighting unit that can ensure sufficient brightness to illuminate the packaging material of medical materials and suppress excessive light reflection with a simple configuration, and can be manufactured at a relatively low cost. can do.

  In addition, by using a configuration that includes a counting means that counts the medical materials recognized by the matching means, it can be used effectively when, for example, a patient is charged with medical materials used in medical practice or inventory management is performed. it can.

It is a schematic explanatory drawing of the medical material recognition system which concerns on one Embodiment of this invention. It is the perspective view showing the external appearance of the medical material recognition system of FIG. It is a figure explaining the structure of the illumination part of the medical material recognition system of FIG. It is a block diagram of the medical material recognition system of FIG. It is explanatory drawing of an example of the product identification information previously given to one surface of the packaging material itself of medical material. It is a flowchart explaining operation | movement of the medical material recognition system of FIG. It is a figure explaining the other example of the illumination part of the medical material recognition system of FIG.

  Embodiments of a medical material recognition system of the present invention will be described below with reference to the accompanying drawings. The medical material recognition system according to the present invention includes, for example, packaging materials for medical materials such as needles, threads, sterilized gauze, scalpels, scissors, intubation tubes, catheters, syringes, and artificial joints used in medical practices such as surgery. A medical material recognition apparatus capable of recognizing a medical material by using product identification information previously applied to one surface at the manufacturing stage or the shipping stage. 1 to 6 show an embodiment of the medical material recognition system of the present invention. As shown in FIGS. 1, 2, and 3, in this embodiment, the medical material recognition system 10 includes an imaging unit 12 that images product identification information displayed on the packaging material itself of the medical material, and a medical material database 14. And verification means 16.

  The medical material recognized by the medical material recognition system 10 according to the present embodiment is distributed, sold, and stored in a state of being sterilized and placed in a packaging material, for example. It is taken out from the packaging material 100 and used. FIG. 5 shows an example of a packaging material 100 for medical materials. The medical material packaging material 100 is formed in various forms such as bags, boxes made of paper, synthetic resin, metal film, etc., for example, depending on the form of the medical material contained therein. In FIG. 5, the medical material packaging material 100 is formed in, for example, a bag shape, and product identification in which information for identifying a product such as a product name of the medical material contained therein is displayed on the bag surface. Information 102 is given. The product identification information 102 is, for example, a package display formed by printing or the like in advance at the manufacturing stage or shipping stage at the manufacturer on the one surface of the packaging material 100 itself of the medical material. It includes a mode in which a sticker on which characters, graphics, etc. such as trademarks are displayed, and a mode in which characters, graphics, etc., such as product names and trademarks, are directly applied to the packaging material itself by printing or the like. That is, the product identification information is originally applied as a medical material product identification display on the medical material packaging material itself, rather than a management label sticker separately attached after medical materials are shipped as in the prior art. The product identification information of the packaging itself is used as it is as a recognition element without any changes to the packaging material of the medical material. The product identification information 102 is displayed in advance on the medical material packaging material 100 itself, for example, by the manufacturer or distributor of the medical material, and the product name, standard, size, model, approval number, serial number, expiration date, manufacturer , Vendors, handling precautions, and the like are written using characters 102a and symbols. Further, the product identification information 102 is displayed with a graphic 102b explaining the handling method in an illustration, a barcode 102c for identification, etc., or a product name or the like in a designed character for package design. Alternatively, a figure may be drawn with a straight line 102d or a curve, or a part or all of the background may be colored. That is, the product identification information 102 displays information that can identify various medical materials. For example, the product identification information 102 is one of codes such as characters, symbols, figures, colors, barcodes, two-dimensional codes, or the like. It is formed by a combination display, and varies depending on the type of medical material, manufacturer, and the like.

  As shown in FIGS. 1 and 2, in this embodiment, the medical material recognition system 10 integrates most of the necessary components including the imaging unit 12, the medical material database 14, the matching unit 16, and the like into the housing 18. Are assembled. The housing 18 is, for example, on the outer surface side so as to cover the frame member 20 that supports the imaging unit 12, the lighting unit 28 described later, the computer 36 that constitutes the medical material database 14, the collating unit 16, and the like, and those members. And a cover plate 22 to be installed. FIG. 1 shows a state in which a part of the cover body 22 is cut away so that the configuration inside the housing 18 can be seen. The casing 18 has a pedestal 24 made of a horizontal plate on the lower side, and supports the imaging unit 12 and the like at a height that is spaced apart from the pedestal 24 to a certain extent, so that the casing 18 as a whole is substantially side-viewed. It is formed in a letter shape. The packaging material 100 of the medical material to be recognized is placed on the base 24 using the inside of the substantially U-shaped gap S of the housing 18, and the packaging material 100 can be imaged by the imaging unit 12. An adjuster 25 for stably placing the entire system apparatus is attached to the bottom surface of the pedestal 24. Further, a touch panel 42 described later is attached to the upper side of the housing 18 via a joint whose angle can be adjusted. On the outer surface side of the housing 12, a connection terminal 52 that can be connected to an external device such as an on / off switch 50 of a medical material recognition system or a USB (Universal Serial Bus) is installed. It is connected to the computer 36 of the body 12. Note that the form of the housing 18 is not limited to the above, and may be arbitrarily formed. In addition, the imaging unit 12, the medical material database 14, and the collation unit 16 are not limited to be integrated in a single housing, and each is covered and separated by an individual cover or body, and these are wired or wirelessly data communication. It is good also as a structure connected as possible.

  As shown in FIGS. 1 and 2, the imaging unit 12 is an imaging unit that captures product identification information 102 of a packaging material 100 itself of a medical material to be recognized to acquire identification information image data. The imaging unit 12 is composed of, for example, a digital camera to which a lens is attached. The imaging unit 12 acquires product identification information 102 of the captured medical material packaging material 100 as electronic data of a digital image, and stores the identification information image data in a computer 36 described later. send. In the present embodiment, the imaging unit 12 is set with the imaging direction facing downward so that the lens faces the pedestal 24 of the housing 18, and the product of the packaging material of the medical material disposed on the pedestal 24. It is set so that the entire product identification information 102 can be photographed in front of the identification information. For example, a polarizing filter 26 that linearly polarizes light entering the lens is installed at the tip of the lens of the imaging unit 12, and suppresses unnecessary light and reflection reflected on the surface of the packaging material 100 of medical material. The product identification information 102 of the packaging material 100 can be accurately imaged.

  As shown in FIGS. 1 and 3, an illumination unit 28 for illuminating a packaging material 100 of a medical material to be recognized is disposed around the imaging unit 12. FIG. 3 shows a simplified configuration of the imaging unit 12 and the illumination unit 28 in a state where the lens of the imaging unit 12 is viewed from the pedestal 24 in a face-to-face relationship. In FIG. 3, the vertical direction in the figure is the front-rear direction of the casing 18, and the horizontal direction in the figure is the horizontal direction of the casing 18. In the illumination unit 28, the light irradiation direction is set downward toward the photographing direction of the imaging unit 12, that is, the base unit 24 direction on which the medical material packaging material 100 is placed. More specifically, the illumination unit 28 includes four straight illuminators 30a to 30d arranged in a square frame shape so as to surround the lens of the imaging unit 12 in the center. The straight illuminators 30a to 30d are provided with, for example, a plurality of issuing diodes arranged in a straight line, and are illuminated by receiving power supply from the illumination controller 34, and are switched on / off and brightness. Can be adjusted. Furthermore, polarizing plates 32a and 32b are installed on the light irradiation side of the straight illuminators 30a to 30d. Of the four linear illuminators surrounding the lens 12a of the imaging unit 12 in a square frame shape, a vertical polarizing plate is provided on the irradiation side of the two linear illuminators 30a and 30c arranged on two sides facing in the front-rear direction. A horizontal polarizing plate 32b is installed on the two straight illuminating tools 30b and 30d arranged on the two sides facing each other in the left-right direction. Therefore, the polarization directions of the two sets of opposed straight illumination tools 30a to 30d arranged in a substantially square frame shape are adjusted to each other. As a result, the packaging material 100 of the medical material imaged by the imaging unit 12 as a recognition target is brightly illuminated, and the extra light or reflection reflected on the surface of the packaging material 100 of the medical material is suppressed to produce the product of the packaging material 100. The identification information 102 can be accurately imaged. In addition, the polarization direction of the polarizing plate of the straight illuminator and the polarization direction of the polarization filter of the imaging unit 12 may be appropriately adjusted according to excessive diffuse reflection of light on the packaging material and the brightness of light entering the lens. Moreover, you may arrange | position an illumination part intermittently in the circumference | surroundings of an imaging part continuously or with a fixed interval or an indefinite interval. The illumination unit may use a light source that spreads in a dot shape, a linear shape, or a planar shape. In addition, the illumination unit is not limited to the configuration in which the illumination tool is arranged in the above-described square frame shape, for example, around the imaging unit 12, around the imaging unit 12, a triangular shape, a pentagonal shape, a hexagonal shape, other polygonal shapes, or a circular shape, It is good also as a structure which arrange | positions an illuminating device around other imaging parts, such as the structure arrange | positioned at a star shape.

  FIG. 7 shows a simplified configuration example in which the illumination unit 28 is provided in a circular ring shape with the imaging unit 12 as the center. In the example of FIG. 7, the illuminating device 28 includes, for example, a ring-shaped illuminating device 54 in which a plurality of light emitting diodes are arranged in a circular ring shape on a circular ring-shaped substrate and accommodated in a circular ring-shaped case. Yes. A ring-shaped illumination polarizing plate 56 is installed on the irradiation side of the ring-shaped illumination tool 54. Accordingly, even in the case of the configuration of the imaging unit 12 and the illumination unit 28 as shown in FIG. 7, the medical material packaging material 100 is brightly illuminated, and extra light or reflection reflected on the surface of the medical material packaging material 100 is generated. The product identification information 102 of the packaging material 100 can be captured accurately.

  In the present embodiment, the medical material database 14 and the collation means 16 are realized by a computer 36. The computer 36 has, for example, a well-known computer configuration, has a central processing unit (not shown), a memory, and a storage unit, and operates based on a program stored in advance in the storage unit. As shown in FIG. 4, the computer 36 includes an imaging unit 12, an input unit 38 for a user to perform an input operation, and an output unit 40 that displays an image captured by the imaging unit 12 and a user interface of the system on a screen. Connected as possible. In the present embodiment, for example, the input unit 38 and the output unit 40 include a touch panel 42 as shown in FIG. The input unit 38 may be, for example, a pointing device such as a mouse or a keyboard. The output unit 40 may be, for example, a device having only a screen display function such as a display, or may be a transmission device that transmits a recognition result to another peripheral device such as another computer or printer.

  The medical material database 14 is a database in which a plurality of medical material data and identification information image data of product identification information applied to each of the medical material packaging materials are stored in association with each other. Is remembered. In the medical material database 14, for example, the product identification information displayed in characters, symbols, figures, colors, codes, etc. as described above together with the product name, standard, size, manufacturer, distributor, etc. of the medical material Image data based on the mode is stored as identification information image data corresponding to each medical material. That is, the identification information image data stored in the medical database 14 is not a partial display of the product name, code, etc., but the entire product identification information that is originally displayed on the packaging material 100 itself including characters, figures, etc. Image data is stored. For example, in the case of the packaging material 100 of medical material as shown in FIG. 5, the entire display on one surface of the packaging material in FIG. 5 is recorded as identification information image data as it is. The identification information image data may be, for example, image data obtained by converting the entire product identification information of the packaging material of the medical material into image data using a digital camera, a scanner, or the like, or image data created from electronic data when creating a package. Moreover, it is good also as storing identification information image data in a medical material database by imaging with the imaging part 12 previously before recognition work. Further, in the present embodiment, for example, in the medical database 14, for the case where a code such as a barcode or a two-dimensional code is displayed on the product identification information 102 of the packaging material of the medical material, Corresponding information data is also associated and stored.

  The collating unit 16 collates the identification information image data acquired by imaging with the imaging unit 12 and the identification information image data stored in the medical material database 14, thereby obtaining the medical material imaged by the imaging unit 12. Is a means of recognizing the type of As shown in FIG. 4, in this embodiment, the collation means 16 is provided with the whole image collation means 44 which collates the identification information image data based on the whole product identification information currently displayed on the packaging material itself of a medical material. The whole image matching means 44 uses, for example, a well-known image recognition technique such as sample-based matching, and the identification information image data in the medical material database 14 that completely or substantially matches the identification information image data from the imaging unit 12. Search for and identify medical materials. For example, the product identification information of the packaging material of the medical material may be different in only a small portion such as the size display and only the size notation. In the present embodiment, the whole image matching unit 44 is approximated to some extent. In the case where there are a plurality of types of product identification information of the packaging material of the medical material that becomes the identification information image data, the plurality of medical material candidates are set as the recognition results as the first stage.

  Furthermore, in this embodiment, when there are a plurality of medical materials recognized by the overall image matching unit 44, the matching unit 16 additionally specifies the medical material by an element different from the image data of the entire product identification information. Auxiliary recognition means 46 is provided. The auxiliary recognizing means 46 specifies a medical material using, for example, a user input operation or a barcode from the input unit 38 as a specific element. For example, the auxiliary recognition means 46 has a known barcode recognition means, and when the barcode is displayed in the product identification information of the packaging material of the medical material imaged by the imaging unit 12, the barcode is displayed. By recognizing the barcode stored in the medical material database 14 by the recognition means, the medical material including the size is specified. Further, the auxiliary recognition unit 46 displays, for example, a plurality of recognition results of the whole image matching unit 44 on the touch panel 42, and the user touches and inputs the corresponding medical material while checking the packaging material of the medical material. Thus, the medical material can be specified.

  Basically, the collating unit 16 may be configured to collate image data that is completely matched by the whole image collating unit 44. However, in the case where there is image data that is somewhat similar as described above, the whole image collating unit 44 uses the plurality of candidates in the first stage as the recognition results, and then the auxiliary recognizing unit 46 determines whether there is a user input or the like. By adopting a configuration that is supplementarily specified by the element, it is possible to expect to realize early recognition at a relatively low cost. The auxiliary recognition unit 46 may not include the barcode recognition unit, but may include only a configuration for specifying the medical material by a user input operation. In addition, the auxiliary recognition means 46 is not limited to codes such as barcodes as described above, and medical characters, symbols, and graphic data displayed in part of product identification information of packaging materials for medical materials are medically used. It is good also as specifying medical material by collating with each data of a material database. For example, the auxiliary recognition means 46 recognizes characters from the identification information image data of the product identification information of the packaging material of the medical material using the OCR technique, compares it with the character (text) data stored in the medical material database, It is good also as recognizing material.

  In the present embodiment, as shown in FIG. 4, a tabulating unit 48 that tabulates the medical material recognized by the collating unit 16 is provided. The counting means 48 counts the medical material based on the recognition result of the medical material to be recognized imaged by the imaging unit, and stores it in the storage unit of the computer 36. Data obtained by collecting medical materials can be used for, for example, billing a patient using medical materials, inventory management of medical materials, and the like.

  Next, a flow when using the medical material recognition system 10 according to the present embodiment will be described with reference to FIG. In the present embodiment, for example, a description will be given of an example in which medical materials used in a medical practice such as surgery are totaled. Medical materials such as gauze, bandages, threads, needles, scissors, and scalpels that are used in surgery, etc. are encased in a wrapping material in a sterilized state, and are opened and used for use. The empty packaging material from which the material has been removed is collected. When counting the used medical materials, the medical material recognition system 10 images the product identification information of the packaging material 100 of the medical materials with the imaging unit 12 in step S10 of the flowchart of FIG. In step S10, for example, as shown in FIG. 1 and FIG. 2, a packaging material 100 of medical material is put in the space S portion of the casing 18 formed in a substantially U shape, and the packaging material is placed on the base 24. The entire product identification information 102 of 100 is arranged under the lens of the imaging unit 12 so that the imaging unit 12 captures an image. At this time, the image captured by the imaging unit 12 may be displayed on the touch panel 42 via the computer 36. Next, in step S 12, the entire product identification information display of the packaging material 100 of the medical material acquired by the imaging unit 12 and the identification information image data stored in the medical material database 14 are collated by the collating unit 16. The In this step S12, the collation means 16 is collated by the whole image collation means 44 by comparing the identification information image data based on the entire product identification information. Next, in step S14, the collation result of step S12 is displayed on the touch panel 42, and when it is completely correctly recognized including the product name and size of the medical material to be recognized (Y), the process proceeds to step 16. In step S16, the recognized medical materials are counted up and counted by the counting means based on the recognition result, and stored in the storage unit of the computer. On the other hand, in step S14, due to slight differences in size notation or the like, the recognition result of the medical material by the whole image matching unit of the matching unit 16 is a recognition result of a plurality of candidates, for example, the same product having a plurality of sizes. If it is not completely specified (N), the process proceeds to step S18 in order to auxiliaryly specify the medical material by the auxiliary recognition unit of the verification unit 16. In step S18, when the barcode is displayed in the product identification information of the packaging material of the medical material, the barcode stored in the medical material database with respect to the acquired barcode by the barcode recognition means of the auxiliary recognition means Match. In step S20, when the size of the medical material is specified (Y), the collation result is displayed on the touch panel 42, and the process proceeds to step 16 where the medical material recognized by the counting means is counted up and totaled. And stored in the storage unit of the computer. On the other hand, for example, when the product identification information of the medical material packaging material has no barcode or cannot be recognized (N), in step S20, a plurality of medical material candidates (for example, the same product) recognized by the above collation are used. And a different size) are displayed on the touch panel 42, and the process proceeds to step S22. In step S22, the user recognizes the medical material by touching the appropriate size of the screen display by the auxiliary recognition means. Then, the process proceeds to step 16 where the medical materials recognized by the counting means based on the recognition result are counted up and totaled and stored in the storage unit of the computer. If it is necessary to recognize other medical materials after counting the medical materials in step S16, the process returns to step S10 and the above steps are repeated (step S24). When the recognition of all the used medical materials is completed, the final result of counting the medical materials is output. In this way, medical materials can be recognized easily and in a short time, and accurate counting of medical materials can be performed with low effort. In addition, the output of the counting result of the medical material may be displayed on the touch panel 42, or may be output to a storage device such as a USB memory or a portable hard disk, or may be used for an electronic medical record, a hospital server, or inventory management. It may be transmitted to another electronic terminal device such as a computer via a wired or wireless communication line, or output to paper by a printer. The counting result of the medical material can be used for, for example, management of billing for the patient, inventory management, business management, and the like.

  The medical material recognition system of the present invention described above is not limited to the configuration of the above-described embodiment alone, and can be arbitrarily modified without departing from the essence of the present invention described in the claims. Also good.

  The medical material recognition system of the present invention can be effectively used in medical scenes where it is necessary to recognize various medical materials.

DESCRIPTION OF SYMBOLS 10 Medical material recognition system 12 Image pick-up part 14 Medical material database 16 Collation means 26 Polarization filter 28 Illumination part 30a-30d Straight illumination tool 32a Vertical polarizing plate 32b Horizontal polarizing plate 38 Input part 44 Whole image collation means 46 Auxiliary recognition means 48 Counting Means 54 Ring-shaped illuminator 56 Polarizing plate for ring-shaped illumination 100 Packaging material for medical material 102 Product identification information

Claims (8)

An imaging unit that acquires identification information image data by imaging the identification information of a product that has been applied in advance at the manufacturing stage or the shipping stage on one surface of the packaging material of the medical material
A medical material database in which a plurality of medical material data and identification information image data of product identification information applied to the packaging material itself of each medical material are associated and stored in advance;
A medical material comprising: collation means for recognizing medical material imaged by the imaging unit by collating identification information image data acquired by the imaging unit and identification information image data stored in the medical material database Recognition system. The collating means recognizes the medical material by collating the identification information image data based on the entire product identification information formed by any one or a combination of a plurality of characters, symbols, figures, colors, codes of the medical material packaging material itself. Whole image matching means to
2. An auxiliary recognition means for auxiliaryly identifying a medical material by an element different from the whole product identification information when there are a plurality of types of medical material recognized by the whole image matching means. Medical material recognition system.   The auxiliary recognizing means identifies a medical material by using data of any one of characters, symbols, figures, colors, and codes obtained from a part of identification information image data of the entire product identification information as an element. Item 3. The medical material recognition system according to Item 2. Including an input unit for accepting user input operations;
The medical material recognition system according to claim 2 or 3, wherein the auxiliary recognition means identifies the medical material based on an input operation from the input unit. A polarizing filter is installed in front of the lens of the imaging unit,
An illumination unit that is arranged so as to surround the imaging unit and illuminates a packaging material of a medical material to be imaged by the imaging unit, the illumination unit having an illumination unit in which a polarizing plate is installed on the irradiation side. The medical material recognition system according to any one of claims 1 to 4. The illumination unit has four straight illuminators arranged in a square frame shape so as to surround the imaging unit at the center,
While a horizontal polarizing plate is installed on the irradiation side of the straight illuminating device arranged on one opposite two sides of the square frame shape,
6. The medical material recognition system according to claim 5, wherein a vertical polarizing plate is installed on the irradiation side of the straight illuminating device arranged on the two opposite sides of the square frame.   The illumination unit has a ring-shaped illuminator provided in a circular ring shape so as to surround the imaging unit, and a ring-shaped illumination polarizing plate is installed on the irradiation side of the ring-shaped illuminator. The medical material recognition system according to claim 5.   The medical material recognition system according to any one of claims 1 to 7, further comprising a totaling unit that totalizes the medical materials recognized by the collating unit.

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