JP5865085B2 - Wound cleaning evaluation device and wound cleaning evaluation method - Google Patents

Description

  The present invention relates to a wound cleaning evaluation apparatus and a wound cleaning evaluation method for evaluating the cleaning effect of negative pressure treatment for applying a negative pressure to a wound by a simulation test.

  Conventionally, negative pressure treatment of a wound is performed by sealing the wound with a sealing member and supplying a drug or a washing solution to the wound while keeping the inside of the wound at a negative pressure. In addition, a water-permeable material for introducing a drug or a cleaning liquid to the wound is loaded inside the sealing member. The following patent document shows an example of negative pressure treatment. In the negative pressure treatment described here, a medicine or washing liquid is supplied to the wound, while a method of sucking it from the inside of the sealing member and only exuding the wound without using the medicine, etc. Methods are included.

  As shown in FIG. 12, the water permeation with the supply tube 103 connected to the supply tank 101 and the discharge tube 107 connected to the drainage tank 105 having their respective ends 109 and 111 sealed with a film-like sealing member 113. Is inserted into the conductive material 115. While the peristaltic pump 117 supplies the cleaning liquid stored in the supply tank 101 to the inside of the sealing member 113, the suction pump 119 exhausts the air inside the drainage tank 105 to the inside of the sealing member 113. A negative pressure is generated, and the washing liquid is discharged into the drainage tank 105 together with the wound exudate. In this process, the water permeable material 115 is washed. Reference numeral 121 indicates a signal line such as a sensor for feedback control of the negative pressure.

  The most effective conditions for cleaning the wound are the flow rate of the cleaning liquid supplied to the inside of the sealing member 113, the arrangement and shape of the tips 109 and 111 of the supply tube 103 and the discharge tube 107, and the tips 109 and 111, respectively. It is influenced by the depth inserted into the water permeable material 115. It is up to the operator to determine such conditions. However, it is difficult to quantitatively determine the conditions under which the wound can be cleaned most effectively based on the shape, width, depth, etc. of the wound, and the trouble of repeating the trial by the operator is regarded as a problem. .

Special table 2008-538960 gazette JP-T-2006-503628

  The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a wound cleaning evaluation apparatus and a wound cleaning evaluation method that can support accurate implementation of negative pressure treatment of a wound.

  The present invention includes a supply tank for storing a cleaning liquid, a base formed of a light-transmitting material and having a recess imitating a wound, a water-permeable material that is loaded in the recess and penetrates water-soluble ink, and a light-transmitting material. A sealing member that closes the concave portion of the base, a supply tube that passes through the sealing member and introduces cleaning liquid from the supply tank into the concave portion of the base, and that passes through the sealing member and receives cleaning liquid from the concave portion of the base The discharge tube to be led out, the suction means for generating negative pressure through the discharge tube in the recess of the base, and the water-soluble ink that is installed outside the base and permeated through the water-permeable material is photographed. Imaging means for converting image data into image data, image recording means for recording image data, image display means for displaying image data, and image data of water-soluble ink imaged by the imaging means Is recorded in the stage, characterized in that it comprises a control means for displaying on the image display means the recorded image data of said image recording means.

  Further, according to the present invention, the control unit includes a computer that controls operations of the imaging unit, the image recording unit, and the image display unit, and a recording medium on which the computer-readable program is recorded. , Causing the computer to execute a procedure for recording the image data of the water-soluble ink imaged by the imaging unit on the image recording unit, and a procedure for displaying the image data recorded by the image recording unit on the image display unit It is characterized by that.

  Further, according to the present invention, the image pickup unit takes a still image of water-soluble ink that has been permeated through the water-permeable material every time a predetermined time elapses, and the image display unit uses the water-soluble image taken by the image pickup unit. The image data of the characteristic ink is displayed in an array according to the order of photographing by the imaging means.

  Further, according to the present invention, the imaging unit captures a moving image of water-soluble ink permeated through the water-permeable material, and the image display unit reproduces image data of the water-soluble ink captured by the imaging unit. It is characterized by being.

  The present invention is characterized by comprising at least one of elevating means for elevating the base with respect to the supply tank and the drainage tank, and tilting means for inclining the base with respect to a horizontal plane.

  Further, the present invention is characterized in that the image display means includes at least one of a display for displaying an image based on a plurality of image data and a printer for printing an image based on the plurality of image data.

  The present invention also includes a step of preparing a base made of a light-transmitting material and having a recess imitating a wound, a step of loading a water-permeable material into the recess of the base, and water-soluble ink in the water-permeable material. A step of permeable, a step of closing the concave portion of the base using a light-transmitting material, a step of introducing a cleaning liquid from a supply tube into the concave portion of the base, a step of deriving the cleaning liquid of the concave portion of the base from a discharge tube, A step of generating a negative pressure in the concave portion of the base via the discharge tube, and a plurality of times by photographing the water-soluble ink permeated through the water-permeable material from the outside of the base every time a predetermined time elapses. The method includes a step of recording an image, and a step of displaying the plurality of images in an arrangement according to the order in which each of the images was taken.

  The wound cleaning evaluation apparatus of the present invention loads a water-permeable ink-permeable water-permeable material into a concave portion of a base imitating a wound, supplies cleaning liquid from the supply tube to the concave portion, and derives the cleaning liquid from the discharge tube. Thus, the water-soluble ink that has penetrated into the water-permeable material can be washed. In this process, every time a certain period of time elapses, the image pickup means captures the water-soluble ink from the outside of the substrate, and the image recording means records a plurality of still image data indicating the degree of progress of the water-soluble ink cleaning. . Further, the plurality of image data are displayed by the image display means in an arrangement according to the order of each image.

  Alternatively, the image recording unit records the moving image data indicating the temporal change in the degree of progress of the water-soluble ink cleaning, while the imaging unit continues the above photographing for a certain period of time. Furthermore, the image data of the moving image is reproduced by the image display means.

  The above process is based on conditions such as the flow rate of the cleaning liquid supplied to the recess of the substrate, the negative pressure of the recess, the arrangement and shape of the supply tube and the discharge tube, the angle at which these are inserted into the water-permeable material, and the depth. Done below. Subsequently, the above-described steps are performed under a plurality of conditions with different factors described here, and a plurality of images indicating the progress of the water-soluble ink cleaning are displayed by the image display means.

  An operator who performs negative pressure treatment of a wound can compare a plurality of images displayed by the image display means at a glance, and can immediately determine the best condition for cleaning the wound. The effects of the wound cleaning evaluation apparatus described above are achieved by the wound cleaning evaluation method of the present invention.

  Furthermore, since the wound cleaning evaluation apparatus of the present invention can arbitrarily set the angle of inclination of the base with respect to the horizontal plane and the height of the base with respect to the supply tank and the drainage tank, under conditions including these as factors, The wound cleaning evaluation apparatus of the present invention can perform the above steps. Further, when the image display means is a display or a printer, an image showing the progress of the water-soluble ink cleaning can be displayed on the display or printed by the printer, so that the operator can contrast these images at a time. Convenient to.

Schematic explaining the principle of the wound cleaning evaluation apparatus which concerns on embodiment of this invention. The block diagram which shows the structure of the wound cleaning evaluation apparatus which concerns on embodiment of this invention. The sectional view which decomposed | disassembled the base | substrate applied to the wound cleaning evaluation apparatus which concerns on embodiment of this invention, a water-permeable material, a sealing member, a supply tube, and a discharge tube. (A)-(c) is the perspective view which showed the modification of each front-end | tip part of the supply tube applied to the wound cleaning evaluation apparatus which concerns on embodiment of this invention, and a discharge tube. (A) is a top view of the base applied to the wound cleaning evaluation apparatus which concerns on embodiment of this invention, (b) is the sectional drawing. (A) is a top view which shows one modification of the base applied to the wound cleaning evaluation apparatus which concerns on embodiment of this invention, (b) is the sectional drawing. (A) is a top view which shows the other modification of the base | substrate applied to the wound cleaning evaluation apparatus which concerns on embodiment of this invention, (b) is the sectional drawing. The side view which shows the example of arrangement | positioning of the raising / lowering means applied to the wound cleaning evaluation apparatus which concerns on embodiment of this invention, the support structure of the base | substrate which fracture | ruptured a part of tilting means, and the wound cleaning evaluation apparatus. (A) is the top view of the support structure of the base | substrate which fractured | ruptured a part of raising / lowering means and tilting means applied to the wound cleaning evaluation apparatus which concerns on embodiment of this invention, (b) is the front view. The front view which shows the usage example of the raising / lowering means applied to the wound cleaning evaluation apparatus which concerns on embodiment of this invention, and a tilting means. The example of a display of the image which shows the degree to which cleaning of water-soluble ink advances in order of (a)-(d). Schematic explaining the principle of the wound cleaning evaluation method of a prior art example.

  The drawings refer to FIGS. 1 and 2 unless otherwise specified. The wound cleaning evaluation apparatus 1 according to the embodiment of the present invention includes a supply tank 3, a base 7 on which a recess 5 simulating a wound is formed, a water-permeable material 9 through which water-soluble ink is permeated, and a recess in the base 7. 5, a sealing member 11, a supply tube 13, a discharge tube 15, a suction unit 17, an imaging unit 19 that captures water-soluble ink permeated through the water-permeable material 9 and sends out image data, and image data The image recording means 21 which records image data, the image display means 23 which displays image data, the control means 25 which mainly has a computer, for example, and the recording medium 27 which recorded the program which the control means 25 can read.

  As shown in FIG. 3, the base 7 is formed by forming an upward concave portion 5 made of a transparent material such as transparent glass or acrylic resin. Although the thickness of the sealing member 11 is represented for convenience of explanation, it is preferable that the sealing member 11 is a flexible film made of a light-transmitting material similar to that of the substrate 7 and closely attached to the upper surface 29 of the substrate 7. The water-soluble ink may be a solution containing ink, dye, or other pigment. As the water permeable material 9, an open-cell foamed resin may be loaded in the recess 5 of the base 7. The thickness of the water-permeable material 9 before being loaded into the concave portion 5 is slightly larger than the depth [y] of the concave portion 5 of the base 7, but the water-permeable material 9 has a sealing member 11 that closes the concave portion 5 of the base 7. And it has elasticity of the grade compressed between bottom face 31 of crevice 5.

  The supply tank 3 is preferably suspended to a desired height using a hanger or the like. The cleaning liquid stored in the supply tank 3 flows down through the supply tube 13. The supply tube 13 is a tube made of a flexible material that introduces the cleaning liquid from the supply tank 3 into the recess 5 of the base 7. The downstream end 33 of the supply tube 13 passes through the sealing member 11 and reaches the water permeable material 9. In the middle of the supply tube 13, a peristaltic pump 35 that sends the cleaning liquid to the downstream end 33 at a constant flow rate may be provided. In this case, the supply tank 3 may be disposed lower than the base 7.

  The discharge tube 15 is a tube made of a flexible material that guides the cleaning liquid from the recess 5 of the base 7 to the liquid discharge tank 37. The upstream end 39 of the discharge tube 15 passes through the sealing member 11 and reaches the water permeable material 9. The drainage tank 37 stores the cleaning liquid led out from the recess 5 of the base 7 through the discharge tube 15. The suction means 17 is a pump that exhausts air from the inside of the drainage tank 37, and can generate a negative pressure through the discharge tube 15 inside the recess 5 of the base 7 blocked by the sealing member 11. it can. When the supply tank 3 is disposed higher than the base 7, the height of the supply tank 3 is set to the suction means 17 so that the negative pressure in the recess 5 is not canceled by the pressure at which the cleaning liquid in the supply tank 3 flows into the recess 5. It is set in consideration of the ability.

  The imaging means 19, the image recording means 21, the image display means 23, and the recording medium 27 are connected to a control means 25 that controls these operations. The image pickup means 19 is a digital camera that optically shoots water-soluble ink permeated through the water-permeable material 9 and converts the image into image data that can be processed by the control means 25. FIG. 1 shows an example in which two digital cameras are installed as the image pickup means 19 above and below the base 7 respectively.

  The functions of the image recording unit 21 and the recording medium 27 may be assigned to a RAM, a hard disk, or the like provided in the control unit 25. In addition to the above program, a recording area for image data may be set in one RAM, one hard disk, or the like. The image display means 23 is a display 41 that displays an image based on a plurality of image data. Further, the printer 43 connected to the control means 25 may print a plurality of images displayed on the display 41.

  The downstream end 33 of the supply tube 13 is not limited to the form shown in FIGS. 4A to 4C, as the three forms 45, 47, and 49 of the downstream end 33 of the supply tube 13, a Fresnel shape, a rod shape having a plurality of water passage holes 51 opened, or a flat box shape is used. Each is shown. The upstream end 39 of the discharge tube 15 may have the same form as the downstream end 33 of the supply tube 13, but they need not have the same form. One of the illustrated forms 45, 47, 49 may be selected as the form of the downstream end 33 of the supply tube 13, and the other may be selected as the form of the upstream end 39 of the discharge tube 15.

  5A and 5B show that the lip 53 and the bottom surface 31 of the recess 5 of the base 7 are circular, and the peripheral surface 55 of the recess 5 is inclined in a cone shape. 7 is not limited to the form shown in FIG. As shown in FIGS. 6 (a) to 7 (b), the lip 53 of the recess 5 is formed into an oval shape or a fan shape so that the actual wound size or asymmetric shape can be reproduced to some extent. Alternatively, a gradient may be provided on the bottom surface 31 of the recess 5. It is preferable that the water permeable material 9 is molded so as to have an outer shape imitating the inside of the concave portion 5 described here.

  As shown in FIGS. 8 and 9A and 9B, the wound cleaning evaluation apparatus 1 further includes lifting means 57 for moving the base 7 up and down relative to the supply tank 3 and the drainage tank 37, and the base 7 on the horizontal plane. It is preferable to include tilting means 59 for tilting with respect to. The elevating means 57 is formed by engaging a carriage 65 with two guide poles 63 rising from a bottom member 61 such as a frame so as to be movable up and down. By raising and lowering the carriage 65, the base 7 can be raised and lowered together with the carriage 65, and the height from the recess 5 to the supply tank 3 can be adjusted. The carriage 65 may be raised and lowered manually, and the carriage 65 is detachably fixed to the guide pole 63 by a lock device not shown in the drawing.

  The tilting means 59 has a stay 67 that supports the base 7 connected to a horizontal shaft 69, and a bearing member 71 fixed to the carriage 65 rotatably supports the horizontal shaft 69. The rotation of the horizontal shaft 69 may be performed manually. As a result, the base 7 that tilts with the horizontal axis 69 as a fulcrum takes a posture in which the bottom surface 31 of the concave portion 5 is leveled, or a posture in which the bottom surface 31 of the concave portion 5 is tilted as shown in FIG. It is detachably fixed to the bearing member 71 by a locking device that is not provided. The dimensions in Table 1 indicate the meanings of the symbols in FIGS.

  A wound cleaning evaluation method using the wound cleaning evaluation apparatus 1 will be described below. First, the water-permeable material 9 is loaded into the concave portion 5 of the base 7 and, as shown in FIG. Reference numeral 10 indicates a region of the water-permeable material 9 colored with ink. In the figure, the positions of the downstream end 33 of the supply tube 13 and the upstream end 39 of the discharge tube 15 are indicated by circles. As shown in FIG. 8, the imaging means 19 is installed either above, below or around the base 7.

  As shown in FIG. 3, the downstream end 33 of the supply tube 13 and the upstream end 39 of the discharge tube 15 are passed through a hole 73 formed in the sealing member 11 in advance, and both are pierced into the water-permeable material 9. The gap between the supply tube 13 and the hole 73 and the gap between the discharge tube 15 and the hole 73 may be filled with a sealant or the like. The concave portion 5 of the base 7 is closed with the sealing member 11, and the sealing member 11 is fixed to the base 7 using an adhesive or a bolt. The base 7 is arranged at a desired height with respect to the supply tank 3 and the drainage tank 37, and the inclination of the base 7 with respect to the horizontal plane is adjusted.

  In the operations so far, the dimensions described in Table 1 are set to the values described in the column of the first condition in Table 2. Table 2 shows two conditions including the above dimensions as factors. The two conditions differ in the values of some of the factors.

  A simulation evaluation test based on the first condition in Table 2 is performed. The operations of the imaging unit 19, the image recording unit 21, and the image display unit 23 described below are assumed to be controlled by the control unit 25 based on the above program.

  That is, the suction means 17 and the peristaltic pump 35 are activated to supply the cleaning liquid from the supply tube 13 to the recess 5, while the cleaning liquid inside the recess 5 is led out from the discharge tube 15 to the drainage tank 37. Thus, in the process of washing the water-soluble ink that has penetrated the water-permeable material 9, for example, every time a fixed time of 10 minutes to 30 minutes elapses, the imaging unit 19 photographs the water-soluble ink from the outside of the base 7. The image recording means 21 records image data of a plurality of still images indicating the degree of progress of the water-soluble ink cleaning.

  Subsequently, as shown in FIGS. 11A to 11D, the image data of a plurality of still images is displayed by the image display means 23 in an arrangement according to the order of each image. An operator who performs negative pressure treatment of a wound can compare a plurality of images displayed by the image display means 23 at a glance, and can immediately determine the best condition for cleaning the wound. When performing the above-mentioned simulation evaluation test, the factors and values in Table 2 are applied to either the image recording means 21 or the recording medium 27, the flow rate of the cleaning liquid supplied to the recess 5 of the substrate 7, and the negative pressure of the recess 5 The shape of the recess 5 and the like may be recorded, and these data may be displayed side by side by the image display means 23 with a plurality of images shown in FIGS.

  A simulation evaluation test based on the second condition is performed. The above dimensions are revised to meet the second condition. It is the same as the process described above that the cleaning liquid is supplied from the supply tube 13 to the recess 5 and the imaging means 19 captures the water-soluble ink every time a fixed time elapses. Thereby, the image display means 23 displays a some image by the arrangement | sequence according to each imaging | photography order. If the image display means 23 is the printer 43, an image showing the degree of progress of the water-soluble ink cleaning in the simulation evaluation tests performed under the first condition and the second condition can be printed. Convenient for contrasting workers.

  Alternatively, in the process of cleaning the water-soluble ink that has penetrated the water-permeable material 9, the imaging means 19 continues the above photographing for a certain period of time, thereby showing a temporal change in the degree of progress of the water-soluble ink cleaning. The image recording means 21 may record the image data. In this case, the program causes the control unit 25 to execute a procedure for causing the display 41 to reproduce the moving image data recorded by the image recording unit 21. Regardless of the actual time when the imaging means 19 photographed the water-soluble ink, it is preferable that the reproduction time of the moving image on the display 41 is set within several minutes.

  It should be noted that the present invention can be carried out in a mode in which various improvements, modifications, or variations are added based on the knowledge of those skilled in the art without departing from the spirit of the present invention. The image display means 23 may be provided with either the display 41 or the printer 43, but the display 41 is indispensable for reproducing a moving image. The control means 25 may be a control panel that can perform sequence control by a relay, a timer, a counter, or the like, and the above computer implies a programmable controller.

  Even if one or both of the elevating means 57 and the tilting means 59 are omitted, the implementation of the present invention is not hindered. Further, the amount of movement of the lifting means 57 or the tilting means 59, that is, the height [h] from the bottom surface of the recess of the base plate to the bottom surface of the supply tank, or the angle [α] for tilting the base surface 31 of the base plate with respect to the horizontal plane. However, it may be input to the control means 25 by an encoder or the like. These values may be recorded on either the recording unit 21 or the recording medium 27. The water permeable material 9 may be transparent.

  The present invention is not limited to the medical field, but is a useful technique for verifying the process of cleaning or permeating food or any article.

  DESCRIPTION OF SYMBOLS 1 ... wound cleaning evaluation apparatus, 3,101 ... supply tank, 5 ... recessed part, 7 ... base | substrate, 9,115 ... water-permeable material, 10 ... colored area | region, 11 , 113 ... sealing member, 13, 103 ... supply tube, 15, 107 ... discharge tube, 17 ... suction means, 19 ... imaging means, 21 ... image recording means, 23 ... Image display means, 25 ... Control means, 27 ... Recording medium, 29 ... Upper surface, 31 ... Bottom face, 33 ... Downstream end, 35, 117 ... Peristaltic pump, 37 , 105 ... drainage tank, 39 ... upstream end, 41 ... display, 43 ... printer, 45, 47, 49 ... configuration, 51 ... water vent, 53 ... Rim, 55 ... peripheral surface, 57 ... elevating means, 59 ... tilting means, 61 ... bottom material, 63 ... guide pole, 65 ... carriage, 67 ... stay, 69 ... Horizontal shaft, 71 ... Bearing member, 73 ... Hole, 109, 111 ... Tip, 119 ... Suction Pump, 121 ... signal line.

Claims (7)

A supply tank for storing cleaning liquid;
A base made of a light-transmitting material and having a recess imitating a wound;
A water-permeable material that is loaded into the recess and is permeable to water-soluble ink;
A sealing member made of a translucent material and closing the concave portion of the base;
A supply tube that penetrates the sealing member and introduces a cleaning liquid from the supply tank into the recess of the base;
A discharge tube penetrating the sealing member and leading the cleaning liquid from the recess of the base;
Suction means for generating negative pressure in the recess of the base via the discharge tube;
An imaging unit installed outside the base and photographing water-soluble ink permeated through the water-permeable material and converting the image into image data;
Image recording means for recording image data;
Image display means for displaying image data;
Control means for causing the image recording means to record image data of water-soluble ink imaged by the imaging means, and displaying the image data recorded by the image recording means on the image display means;
A wound cleaning evaluation apparatus comprising: The control means includes a computer that controls operations of the imaging means, image recording means, and image display means, and a recording medium that records a computer-readable program.
The program is a procedure for causing the image recording means to record image data of water-soluble ink taken by the imaging means,
A procedure for displaying the image data recorded by the image recording means on the image display means;
The wound cleaning evaluation apparatus according to claim 1, wherein the computer is executed. The imaging means shoots a still image of water-soluble ink permeated through the water-permeable material every time a fixed time elapses,
The wound cleaning evaluation apparatus according to claim 1, wherein the image display unit displays the image data of the water-soluble ink imaged by the imaging unit in an array according to the order of imaging by the imaging unit. The imaging means shoots a moving image of water-soluble ink that has penetrated the water-permeable material,
The wound cleaning evaluation apparatus according to claim 1, wherein the image display unit is a display that reproduces image data of water-soluble ink captured by the imaging unit.   5. The apparatus according to claim 1, further comprising at least one of elevating means for elevating and lowering the base with respect to the supply tank and the drainage tank, and a tilting means for inclining the base with respect to a horizontal plane. The wound cleaning evaluation device described.   The wound cleaning according to claim 1 or 2, wherein the image display means includes at least one of a display for displaying an image based on a plurality of image data and a printer for printing an image based on the plurality of image data. Evaluation device. Preparing a base made of a light-transmitting material and having a recess imitating a wound;
Loading a water-permeable material into the recess of the base;
A step of allowing water-soluble ink to penetrate into the water-permeable material;
A step of closing the concave portion of the base with a light-transmitting material;
Introducing a cleaning liquid from a supply tube into the recess of the base;
Deriving the cleaning liquid for the recesses of the base from the discharge tube;
Generating a negative pressure through the discharge tube in the recess of the base;
A step of recording a plurality of images by photographing water-soluble ink permeated into the water-permeable material from the outside of the base each time a certain time elapses;
A wound cleaning evaluation method comprising: displaying the plurality of images in an array according to the order in which each of the images was taken.

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