Puncturing reading instrument
By designing a skin prick test reader, the operation of skin prick testing has been automated, solving the problems of long time consumption and high subjectivity in traditional skin prick testing, and improving efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LOLMO INSTRUMENT CO LTD
- Filing Date
- 2024-12-31
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional skin prick test results are time-consuming to interpret and highly subjective, with poor individual experience and accuracy.
Design a skin prick test reader, including a chassis, an arm support pad, an image acquisition mechanism, and an industrial control computer. It adopts an adjustable light blocking device and an optimized light source design, and combines image acquisition and automated analysis to realize the automated operation of skin prick tests.
It improves the efficiency and accuracy of skin prick testing, reduces interference from external light, ensures image acquisition quality and testing reliability, adapts to different arm sizes, and optimizes imaging effects.
Smart Images
Figure CN224220168U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a device for skin prick testing, specifically a prick test reader. Background Technology
[0002] A skin prick test (SPT), also known as a needle prick test or intradermal test, is a method used to detect a person's sensitivity to a specific allergen. This test involves gently injecting a small amount of a prick solution containing a trace of the allergen into the skin (usually the inner forearm) and observing whether it triggers a local allergic reaction. The principle behind this test is that if a subject is allergic to a substance, their immune system produces specific IgE antibodies against that substance. Upon re-exposure, these antibodies trigger mast cells and basophils to release inflammatory mediators such as histamine, resulting in a wheal (i.e., localized redness, swelling, or erythema) and / or rosacea at the prick site. The prick solution is a solution containing a trace amount of allergen extract, commonly used in skin prick tests. These extracts are carefully prepared to ensure safety and accuracy. Each prick solution targets one or a specific type of allergen, such as a particular pollen species, food ingredient, or insect venom. During the test, a healthcare professional gently punctures the surface of the skin with a specialized prick needle or fine needle and then drips the prick solution into the skin. A wheal is a typical manifestation of an allergic reaction in a skin prick test. It refers to temporary inflammatory hyperemia and significant fluid exudation in the blood vessels of the skin and mucous membranes caused by allergen stimulation, resulting in localized edema and swelling. The size and shape of a wheal vary depending on individual differences, the type of allergen, and the severity of the allergy. The presence of a wheal indicates that the subject has an allergic reaction to the corresponding allergen. Measuring the wheal (e.g., diameter) is an important basis for assessing the intensity of the allergic reaction and determining the positive or negative result of the test.
[0003] The skin prick test (SPT) has become the most commonly used method for allergen detection in clinical practice due to its simplicity, convenience, speed, sensitivity, and low cost. The traditional method for interpreting SPT results involves the collector tracing the outline of the wheal with a marker, transferring it to a special report sheet using transparent tape, and then measuring the wheal with a ruler. The result is then used to determine whether the allergy is positive or negative.
[0004] Although skin prick tests are relatively quick and easy to perform, the increasing variety of prick solutions used in clinical practice means that the collectors need to measure the wheals produced by each prick solution sequentially, which takes a long time and is highly subjective, with differences in individual experience and accuracy of judgment. Utility Model Content
[0005] The following provides a brief overview of one or more aspects to offer a basic understanding of them. This overview is not an exhaustive summary of all conceived aspects, nor is it intended to identify key or decisive elements of all aspects, nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form to prepare for the more detailed descriptions that follow.
[0006] The purpose of this invention is to solve the above problems and provide a skin prick test reader, which provides corresponding instruments and equipment for automating the skin prick test.
[0007] The technical solution of this utility model is as follows: This utility model discloses a dot-pricking reading device, including a chassis, an arm support pad, an image acquisition mechanism, and an industrial control computer. The front end of the chassis has an opening for inserting an arm into the chassis. The arm support pad is located in the front cavity of the chassis. The image acquisition mechanism is located above the arm support pad and includes a camera and a light source for acquiring the dot-pricking area of the skin.
[0008] According to one embodiment of the dot-printing reader of the present invention, the light source is located above and in front of the palm and the irradiation surface is parallel and facing forward.
[0009] According to one embodiment of the dot-printing reader of this utility model, the casing is opaque.
[0010] According to one embodiment of the dot-splitting reader of the present invention, a light-blocking device is provided at the opening at the front of the chassis to accommodate arms of different thicknesses.
[0011] According to one embodiment of the dot-printing reader of the present invention, the light-blocking device is made of a light-blocking cloth wrapped with soft fabric, with an opening in the middle and the opening size defined by an elastic band.
[0012] According to one embodiment of the dot-printing reader of this utility model, the light-blocking device consists of multiple interconnected light-blocking plates. The light-blocking plates are installed on the lower part of the front door of the main unit via a slide rail. The handle passes through the slide groove in the middle of the front door of the main unit and is connected to the light-blocking plate. The opening and closing state of the light-blocking plate is controlled by the handle.
[0013] According to one embodiment of the dot-splitting reader of this utility model, a spring clip provided on the front door of the main unit is used to lock the light-blocking plate when the handle is pulled to the highest point, and pulling the handle down causes the light-blocking plate to disengage from the spring clip to close the entrance.
[0014] According to one embodiment of the dot-printing reader of this utility model, a latch-type door lock is installed on the rear side of the front door of the main unit for self-locking when the front door of the main unit is pushed closed.
[0015] According to one embodiment of the dot-printing device of the present invention, the arm support pad has an upward slope to fix the arm, and the end of the arm support pad changes from a slope to a flat slope to place the wrist horizontally to increase comfort.
[0016] According to one embodiment of the dot-printing reader of the present invention, the arm support pad is detachably connected to the chassis.
[0017] According to one embodiment of the dot-printing reader of this utility model, a bumper structure is installed below the arm support pad to fix the arm support pad in the bumper structure on the bottom surface of the internal casing, so as to realize the quick installation and removal of the arm support pad.
[0018] According to one embodiment of the dot-printing reader of the present invention, a printer placement platform is also provided at the rear of the chassis for placing an additional printer.
[0019] Compared with existing technologies, this invention offers the following advantages: The prick test reader can be used in automated skin prick tests, while also considering adaptability to different arm sizes. An adjustable light-blocking device and arm support pad ensure image quality. Furthermore, the optimized light source design and light-blocking structure effectively reduce interference from external light, further improving image acquisition quality and testing reliability. Attached Figure Description
[0020] The above-described features and advantages of this invention can be better understood after reading the following detailed description of the embodiments of this disclosure in conjunction with the accompanying drawings. In the drawings, the components are not necessarily drawn to scale, and components having similar related characteristics or features may have the same or similar reference numerals.
[0021] Figures 1A to 1E These are various views of an embodiment of the dot-printing reader of this utility model.
[0022] Figure 2 yes Figures 1A to 1E The diagram shows the internal structure of an embodiment of the dot-matrix reader.
[0023] Figure label:
[0024] 1-Chassis
[0025] 2-Industrial Control Computer
[0026] 3-handle
[0027] 4-Arm entrance light shield
[0028] 5-Arm support pad
[0029] 6-Front door of the main unit
[0030] 7-Printer Placement Platform
[0031] 8-camera
[0032] 9-Light Source
[0033] 10-Lock-type door lock
[0034] 11-Spring clip Detailed Implementation
[0035] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the aspects described below with reference to the accompanying drawings and specific embodiments are merely exemplary and should not be construed as limiting the scope of protection of the present invention in any way.
[0036] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0038] Figures 1A to 1E This is a view of an embodiment of the dot-printing reading system of this utility model. Figure 2 The internal structure of this dot-matrix reader embodiment is shown. Please also refer to... Figures 1A to 1E as well as Figure 2As shown, the dot-pricking reader of this embodiment includes: a chassis 1, an arm support pad 5, an image acquisition mechanism, and an industrial control computer 2. The image acquisition mechanism is positioned above the arm support pad 5 and includes a camera 8 for acquiring images of the skin dot-pricking area and a light source 9. The light source 9 is located above and in front of the palm, with its illumination surface parallel and facing forward; therefore, the area of the arm near the palm is the near-light side. The color temperature of the light source is selected from 2000-6000K, and the power is selected from 0.5-30W. Preferably, the color temperature is 4000K and the power is 0.9W. A touchscreen is provided on the industrial control computer 2 to display to the user the real-time images captured by the image acquisition mechanism and / or images of wind clusters and their associated data.
[0039] The industrial control computer 2 is located at the upper front of the chassis 1, and the main unit front door 6 is located at the lower front of the chassis 1. Both the industrial control computer 2 and the main unit front door 6 are directly mounted on the chassis 1. The chassis 1 is opaque; preferably, the inner surface of the chassis is black to prevent internal components from affecting the photographic results. The front of the chassis 1 has an opening for inserting an arm into the chassis. A light-blocking device is provided at the opening to accommodate arms of different sizes, reducing the influence of external light on the internal photographic process. The light-blocking device can be made of a light-blocking cloth wrapped in soft fabric with an opening in the middle, the size of which is defined by an elastic band. Alternatively, it can be... Figure 1E The configuration shown consists of three interconnected light-blocking plates 4. The light-blocking plates 4 are mounted on the lower part of the main unit's front door 6 via a sliding rail. The handle 3 passes through a groove in the middle of the main unit's front door 6 and connects to the light-blocking plates 4. The handle 3 controls the opening and closing of the light-blocking plates 4; when the handle 3 is pulled upwards, the three interconnected light-blocking plates 4 move along... Figure 1E Slide the handle in the direction of the middle arrow to open the opening (i.e., the entrance for the arm to enter the instrument). The opening size is largest when the handle 3 is pulled to its highest point. Pulling the handle down reduces the opening size until the three light-blocking plates 4 contact the arm. The latch-type door lock 10 and the spring clip 11 are both installed on the rear side of the front door 6 of the main unit. The arm lift pad 5 is located in the lower front part of the inside of the housing 1, the camera 8 is located in the upper front part of the inside of the housing 1, and the light source 9 is located in the middle and rear part of the inside of the housing 1. The arm lift pad 5, the camera 8, and the light source 9 are all directly installed inside the housing 1.
[0040] The arm support pad 5, with an upward slope, is located in the front cavity of the chassis 1 to fix the arm at a comfortable angle that is conducive to taking pictures, ensuring image quality. The end of the arm support pad 5 transitions from a slope to a flat slope, allowing the wrist to be placed horizontally for increased comfort.
[0041] When placing the arm, clench the arm to be tested into a fist with the palm side facing upwards. Slowly insert the arm into the instrument along the slope of the arm support pad 5 opposite the opening until the arm reaches a suitable position, and then place the arm on the arm support pad 5. Next, pull down the handle 3 to close the entrance until the three light-blocking plates 4 contact the arm, at which point stop pulling the handle 3. When the handle 3 is at its lowest point, the opening size is at its smallest.
[0042] The arm lift pad 5 is detachably connected to the chassis 1, such as by a ball-and-socket buckle or a magnetic structure. Preferably, the arm lift pad 5 has a contact head structure at its bottom to fix the arm lift pad 5 in the contact head structure on the bottom surface inside the chassis 1, enabling quick installation and removal of the arm lift pad 5. The material of the arm lift pad 5 is not limited and can be metal, plastic, or soft material. Preferably, the arm lift pad 5 is made of ABS.
[0043] The front door 6 of the main unit is located on the front side of the chassis and is used to open the front cavity of the dot-matrix reader for installing, maintaining, or replacing the arm support pad. The front door 6 is equipped with a latch-type door lock 10, which automatically locks when the front door 6 is pushed closed. A spring-loaded latch 11 is also provided on the front door 6, which locks the light-blocking plate 4 when the handle 3 is pulled to its highest point, preventing the arm from falling and injuring the subject's hand while they are extending their arm into the chassis. After the subject has correctly positioned their arm, pulling down the handle 3 disengages the light-blocking plate 4 from the spring-loaded latch 11, thus closing the entrance.
[0044] A printer placement platform 7 is also provided at the top rear of the chassis, which can hold an additional printer for printing the puncture measurement results.
[0045] The instructions for using the dot-matrix reader are as follows.
[0046] Step 1: Mark the positioning points in the dot-punching area.
[0047] A suitable area is selected on the palmar side of the subject's forearm, and positioning points are marked using a dot-punching template as positioning markers for image acquisition. The dot-punching template can be a tattoo sticker pre-printed with positioning points and dot-punching sites, which is directly applied to the palmar side of the subject's forearm, or it can be a positioning ruler with positioning holes and dot-punching site holes, on which positioning points are drawn using a marker pen on the palmar side of the subject's arm. The positioning points can be blue dots.
[0048] Step 2: Prick test.
[0049] Perform a standard prick test within the designated area according to the pre-set prick test sites on the prick test template. In one embodiment, the prick test sites are evenly distributed among the designated points. Insert the required allergen prick test solution, positive control solution, and negative control solution into the prick test area corresponding to the prick test template, and prepare for image acquisition 15–20 minutes after prick test.
[0050] Step 3: Image acquisition.
[0051] Pull upwards the handle 3 located at the center of the front of the instrument. At this time, the three interconnected light-blocking plates 4 will move along... Figure 1E Slide the handle in the direction of the arrow to open the entrance. Open the opening to a suitable size for the arm to pass through. Make a fist with the forearm palm side up and slowly insert the arm into the instrument along the ramp of the arm support pad 5 opposite the opening until the arm is in the appropriate position. Then place the arm on the arm support pad 5. Pull the handle 3 down to close the entrance until the three light-blocking plates 4 contact the arm, at which point stop pulling the handle 3. The opening size is smallest when the handle is at its lowest point.
[0052] The subject observes the red box (the preset arm placement area) on the monitor screen and adjusts their arm position so that the positioning marks fall within the red box. The instrument automatically determines whether the arm is positioned correctly based on whether the positioning points on the arm can be clearly identified. If the requirements are met, it automatically acquires an image and provides a prompt in the software interface. The subject then extends their arm through the opening in the device. The machine then analyzes the image and automatically prints a report of the results.
[0053] The prior description of this disclosure is provided to enable any person skilled in the art to make or use this disclosure. Various modifications to this disclosure will be apparent to those skilled in the art, and the general principles defined herein may be applied to other variations without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not intended to be limited to the examples and designs described herein, but should be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A dot-printing reader, characterized in that, The device includes a chassis, an arm support pad, an image acquisition mechanism, and an industrial control computer. The chassis has an opening at the front for inserting an arm into the chassis. The arm support pad is located inside the front cavity of the chassis. The image acquisition mechanism is located above the arm support pad and includes a camera and a light source for acquiring skin puncture areas. The opening at the front of the chassis is equipped with a light-blocking device to accommodate arms of different sizes.
2. The dot-printing reader according to claim 1, characterized in that, The light source is located above and in front of the palm, with the irradiated surface parallel and facing forward.
3. The dot-printing reader according to claim 1, characterized in that, The chassis is opaque.
4. The dot-printing reader according to claim 1, characterized in that, The light-blocking device is made of a light-blocking cloth that is wrapped in soft fabric, with an opening in the middle, the size of which is defined by an elastic band.
5. The dot-printing reader according to claim 1, characterized in that, The light-blocking device consists of multiple interconnected light-blocking plates. The light-blocking plates are installed on the lower part of the front door of the main unit via a slide rail. The handle passes through the slide groove in the middle of the front door of the main unit and is connected to the light-blocking plate. The handle controls the opening and closing state of the light-blocking plate.
6. The dot-matrix reader according to claim 5, characterized in that, The spring clip on the front door of the main unit is used to lock the light-blocking plate when the handle is pulled to the highest point. Pulling the handle down will disengage the light-blocking plate from the spring clip and close the entrance.
7. The dot-printing reader according to claim 1, characterized in that, The latch-type door lock is installed on the rear side of the front door of the main unit and is used to lock itself when the front door of the main unit is pushed closed.
8. The dot-printing reader according to claim 1, characterized in that, The arm support pad has an upward slope to stabilize the arm, and the end of the arm support pad changes from a slope to a flat slope to place the wrist horizontally for increased comfort.
9. The dot-printing reader according to claim 1, characterized in that, The armrest pad is detachably connected to the chassis.
10. The dot-matrix reader according to claim 9, characterized in that, The arm lift pad is equipped with a contact structure underneath, which is used to fix the arm lift pad in the contact structure on the bottom surface of the chassis, so as to realize the quick installation and removal of the arm lift pad.
11. The dot-printing reader according to claim 1, characterized in that, A printer placement platform is also provided at the rear of the chassis to accommodate additional printers.