PPD test picometer
By designing a PPD test Pichu measuring device including a measuring arm, a transparent plate and a recording rod, the problems of low measurement accuracy and inconvenient operation in the prior art are solved, and a one-handed operation and high-precision Pichu measurement is achieved. , and simplifies the recording process.
Patent Information
- Application Number
- CN202420894929.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-04-26
AI Technical Summary
In the prior art, when performing PPD test pichu measurement, the measurement accuracy is not high and the operation is inconvenient, especially due to the irregular shape of the pichu and the need to measure and record the numerical values, resulting in cumbersome measurement and error-prone measurement.
A PPD test pichu measuring device is designed, including a first measuring arm, a second measuring arm, a transparent plate, a finger sleeve and a recording rod. The finger sleeve is inserted through the thumb and index finger and the measurement arm is opened and closed, using the transparent plate The dimension scale reads the distance at both ends of the pichu and records the measurement results through the recording rod, simplifying the measurement process and improving accuracy.
It realizes one-handed operation and convenient Pichu measurement, improves measurement accuracy, simplifies the recording process, and avoids data forgetting and recording errors.
Smart Images
Figure CN222487394U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of medical instruments, in particular to a PPD test picometre measuring device. Background Art
[0002] The tuberculin test, also known as the PPD test, is an intradermal test that diagnoses type IV hypersensitivity reactions caused by tuberculosis infection based on the skin condition at the injection site by intradermal injection of tuberculin. This test is of reference significance for diagnosing tuberculosis and measuring the body's nonspecific cellular immune function.
[0003] Observe, measure and record the test results 48 to 72 hours after the tuberculin test. Measurement refers to measuring the size of the papule (induration) produced on the skin at the injection site. A papule diameter of ≤5mm is negative; a papule diameter of 5 to 9mm is positive; a papule diameter of 10 to 14mm is moderately positive; and a papule diameter of ≥15mm is strongly positive.
[0004] Currently, an ordinary ruler is generally used to measure the size of the skin test mound. The disadvantage is that due to the raised skin test mound, the ruler cannot fit the edge of the skin test mound, but is at a distance from the edge of the skin test mound, which affects the accuracy of the measurement to a certain extent.
[0005] In addition, the PPD test mound is generally not a regular circle, and the mound diameter mentioned above is not the diameter generally understood, but the value obtained by measuring the horizontal and vertical lengths of the mound, adding the horizontal and vertical lengths of the mound and dividing by two. Therefore, the PPD test mound measurement needs to be measured twice and the values are recorded, and finally calculated. If you write down the value in your mind after one measurement, you may forget the value after the second measurement. If you write down the value with paper and pen after one measurement, you need to pause the measurement and take paper and pen to record the value, which is not convenient. Utility Model Content
[0006] The technical problem to be solved by the utility model is to provide a measuring device for measuring the PPD test picomoles, which can be operated with one hand for measurement and is conducive to improving the measurement accuracy.
[0007] The technical solution adopted to solve the above problems is: the PPD test picuma measuring instrument includes a first measuring arm, a second measuring arm, a transparent plate, a first finger sleeve and a second finger sleeve; the rear ends of the first measuring arm and the second measuring arm are hinged by a hinge shaft; the lower surface of the transparent plate is connected to the upper surface of the first measuring arm and fits with the upper surface of the second measuring arm, the shape of the front edge of the transparent plate is an arc with the hinge shaft as the center, and there are several size scales on the upper surface of the transparent plate, each size scale is arranged at intervals along the front edge direction of the transparent plate, and the size scales are used to mark the distance between the front inner end of the first measuring arm and the front inner end of the second measuring arm; the first finger sleeve and the second finger sleeve are respectively connected to the first measuring arm and the second measuring arm.
[0008] Furthermore, the PPD test picuma measuring device includes a primary measurement recording rod, and a transparent plate is provided with recording holes arranged in one-to-one correspondence with the size scales, and the primary measurement recording rod can be inserted into any recording hole.
[0009] Furthermore, the PPD test picuma measuring device includes a secondary measurement recording rod, which can be inserted into any recording hole, and the secondary measurement recording rod is different from the primary measurement recording rod in color.
[0010] Furthermore, the transparent plate is provided with two recording rod placement holes, and the primary measurement recording rod and the secondary measurement recording rod can be inserted into any of the recording rod placement holes.
[0011] Furthermore, the PPD test picuma measuring device comprises a positioning knob; the transparent plate is provided with an arc-shaped long hole centered on the hinge axis, the positioning knob passes through the arc-shaped long hole and is threadedly connected to the second measuring arm.
[0012] Furthermore, the transparent plate is provided with a recording rod placement hole, and the primary measurement recording rod can be inserted into the recording rod placement hole.
[0013] Furthermore, the first measuring arm includes a first measuring arm body and a first silicone head connected to the front end of the first measuring arm body; the second measuring arm includes a second measuring arm body and a second silicone head connected to the front end of the second measuring arm body.
[0014] The beneficial effects of the utility model are as follows: 1. When the utility model measures the PPD test skin bump, the thumb and index finger are respectively inserted into the second finger sleeve and the first finger sleeve, and the thumb and index finger can drive the first measuring arm and the second measuring arm to open and close. The front inner end of the first measuring arm and the front inner end of the second measuring arm are respectively facing the two ends of the skin bump, and then the scale value of the size scale facing the inner surface of the second measuring arm can be read to obtain the distance between the two ends of the skin bump, thereby realizing the size measurement of the skin bump of the skin test.
[0015] The utility model has a simple structure and can be operated with one hand when measuring the PPD test skin bump, which is convenient to operate. The first measuring arm and the second measuring arm can avoid the skin bump and contact the edge of the skin bump, so the front inner end of the first measuring arm and the front inner end of the second measuring arm can be aligned with the edge of the skin bump, which is conducive to improving the measurement accuracy.
[0016] 2. A recording hole and a recording rod / positioning knob are further provided. The utility model can record the measurement results of the skin test dermatome. There is no need to take paper money to record during the measurement process. After the measurement is completed, the measurement results recorded by the utility model can be written down or entered into a computer, thereby avoiding data lag and recording errors. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is the first PPD test picometre;
[0018] Figure 2 It is the second type of PPD test picuma meter;
[0019] Marked in the figure are: first measuring arm 1, first measuring arm body 11, first silicone head 12, second measuring arm 2, second measuring arm body 21, second silicone head 22, hinge shaft 3, transparent plate 4, size scale 41, recording hole 42, recording rod placement hole 43, arc-shaped long hole 44, primary measurement recording rod 5, secondary measurement recording rod 6, first finger sleeve 7, second finger sleeve 8, positioning knob 9. DETAILED DESCRIPTION
[0020] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.
[0021] like Figure 1 and Figure 2 As shown, the PPD test picuma measuring instrument includes a first measuring arm 1, a second measuring arm 2, a transparent plate 4, a first finger sleeve 7 and a second finger sleeve 8; the rear ends of the first measuring arm 1 and the second measuring arm 2 are hinged by a hinge shaft 3; the lower surface of the transparent plate 4 is connected to the upper surface of the first measuring arm 1 and fits with the upper surface of the second measuring arm 2, the front edge of the transparent plate 4 is in the shape of an arc with the hinge shaft 3 as the center, and a plurality of size scales 41 are provided on the upper surface of the transparent plate 4, each size scale 41 is arranged at intervals along the front edge direction of the transparent plate 4, and the size scales 41 are used to mark the distance between the front inner end of the first measuring arm 1 and the front inner end of the second measuring arm 2; the first finger sleeve 7 and the second finger sleeve 8 are connected to the first measuring arm 1 and the second measuring arm 2 respectively.
[0022] When measuring the PPD test skin bump, the thumb and index finger are respectively inserted into the second finger sleeve 7 and the first finger sleeve 8, and the thumb and index finger can open and close to drive the first measuring arm 1 and the second measuring arm 2. The front inner end of the first measuring arm 1 and the front inner end of the second measuring arm 2 are respectively facing the two ends of the skin bump, and then the scale value of the size scale 41 facing the inner surface of the second measuring arm 2 can be read to obtain the distance between the two ends of the skin bump, thereby realizing the size measurement of the skin bump of the skin test.
[0023] The utility model has a simple structure and can be operated with one hand when measuring the skin bump in the PPD test, which is convenient to operate. The first measuring arm 1 and the second measuring arm 2 can avoid the skin bump and contact the edge of the skin bump, so the front inner end of the first measuring arm 1 and the front inner end of the second measuring arm 2 can be aligned with the edge of the skin bump, which is conducive to improving the measurement accuracy.
[0024] Different from the existing ruler or caliper, the dimension scale 41 of the utility model is not arranged along a straight line, but along an arc, and the distance between the dimension scales 41 is reduced in proportion, and the reduction ratio is the distance between the front edge radius of the transparent plate 4 and the front inner end of the first measuring arm 1 and the center of the hinge shaft 3. In this way, the dimension scale 41 can still accurately mark the distance between the front inner end of the first measuring arm 1 and the front inner end of the second measuring arm 2 (that is, the size of the skin test skin bump). The front edge of the transparent plate 4 should be closer to the first measuring arm 1 and the second measuring arm 2, so that the reduction in the distance between the dimension scales 41 is small, which is conducive to reading.
[0025] Furthermore, the preferred PPD test picomotor of the present invention includes a primary measurement recording rod 5 , and the transparent plate 4 has recording holes 42 arranged in a one-to-one correspondence with the size scales 41 , and the primary measurement recording rod 5 can be inserted into any recording hole 42 .
[0026] As described in the background technology, the diameter of the mound is not the diameter generally understood, but the value obtained by measuring the horizontal length and the vertical length of the mound, adding the horizontal length and the vertical length of the mound and dividing by two. Through the above settings, after a measurement (for example, measuring the horizontal length of the mound), the primary measurement recording rod 5 is inserted into the recording hole 42 corresponding to the measurement value, and the primary measurement recording rod 5 records the primary measurement value, without the need to record with paper and pen, which can avoid forgetting. Then, a second measurement (measuring the vertical length of the mound) can be performed.
[0027] In order to record the secondary measurement, the following Figure 1 The PPD test picuma measuring device includes a secondary measurement recording rod 6, which can be inserted into any recording hole 42, and the secondary measurement recording rod 6 is different in color from the primary measurement recording rod 5.
[0028] In this way, the secondary measurement recording rod 6 is inserted into the recording hole 42 corresponding to the measurement value, and the secondary measurement value is also recorded. After the measurement is completed, the measurement result recorded by the utility model is recorded or input into the computer.
[0029] The primary measurement recording rod 5 and the secondary measurement recording rod 6 can be inserted into the recording hole 42 at will for storage. After measurement, the primary measurement recording rod 5 and the secondary measurement recording rod 6 are moved to the recording hole 42 corresponding to the measured value for insertion. The utility model preferably has two recording rod placement holes 43 on the transparent plate 4, and the primary measurement recording rod 5 and the secondary measurement recording rod 6 can be inserted into any recording rod placement hole 43. The primary measurement recording rod 5 and the secondary measurement recording rod 6 are inserted into the recording rod placement hole 43 for storage. The primary measurement recording rod 5 and the secondary measurement recording rod 6 can be connected to the recording hole 42 and the recording rod placement hole 43 by a small interference fit or threaded connection.
[0030] In order to be able to record the secondary measurement, the following Figure 2In this way, the PPD test picuma measuring device includes a positioning knob 9; a transparent plate 4 has an arc-shaped long hole 44 centered on the hinge shaft 3, and the positioning knob 9 passes through the arc-shaped long hole 44 and is threadedly connected to the second measuring arm 2.
[0031] By tightening the positioning knob 9 in this way, the positioning knob makes the second measuring arm 2 close to the transparent plate 4, and the movement of the second measuring arm 2 is limited by friction, and the secondary measurement value is also recorded.
[0032] The first measuring arm 1 and the second measuring arm 2 can be made of hard materials such as plastic, but the front ends of the first measuring arm 1 and the second measuring arm 2 must contact the edge of the skin test skin. In order to avoid the front ends of the first measuring arm 1 and the second measuring arm 2 from damaging the skin, the first measuring arm 1 preferably includes a first measuring arm body 11 and a first silicone head 12 connected to the front end of the first measuring arm body 11; the second measuring arm 2 includes a second measuring arm body 21 and a second silicone head 22 connected to the front end of the second measuring arm body 21.
[0033] The first silicone head 12 and the second silicone head 22 are used for reducing pressure to prevent the front ends of the first measuring arm 1 and the second measuring arm 2 from damaging the skin.
Claims
1. PPD test picuma measuring device, characterized by: The invention comprises a first measuring arm (1), a second measuring arm (2), a transparent plate (4), a first finger sleeve (7) and a second finger sleeve (8); the rear ends of the first measuring arm (1) and the second measuring arm (2) are hinged via a hinge shaft (3); the lower surface of the transparent plate (4) is connected to the upper surface of the first measuring arm (1) and is in contact with the upper surface of the second measuring arm (2); the front edge of the transparent plate (4) is in the shape of an arc with the hinge shaft (3) as the center; the upper surface of the transparent plate (4) is provided with a plurality of size scales (41); the size scales (41) are arranged at intervals along the front edge direction of the transparent plate (4); the size scales (41) are used to mark the distance between the front inner end of the first measuring arm (1) and the front inner end of the second measuring arm (2); the first finger sleeve (7) and the second finger sleeve (8) are connected to the first measuring arm (1) and the second measuring arm (2) respectively.
2. The PPD test picuma measuring device according to claim 1, characterized in that: It comprises a primary measurement recording rod (5), a transparent plate (4) having recording holes (42) arranged in one-to-one correspondence with the size scales (41), and the primary measurement recording rod (5) can be inserted into any recording hole (42).
3. The PPD test picuma measuring device according to claim 2, characterized in that: The utility model comprises a secondary measurement value recording rod (6), which can be inserted into any recording hole (42), and the secondary measurement value recording rod (6) and the primary measurement value recording rod (5) have different colors.
4. The PPD test picuma measuring device according to claim 3, characterized in that: The transparent plate (4) is provided with two recording rod placement holes (43), and the primary measurement recording rod (5) and the secondary measurement recording rod (6) can be inserted into any of the recording rod placement holes (43).
5. The PPD test picuma measuring device according to claim 2, characterized in that: It comprises a positioning knob (9); a transparent plate (4) is provided with an arc-shaped long hole (44) centered on the hinge shaft (3); the positioning knob (9) passes through the arc-shaped long hole (44) and is threadedly connected to the second measuring arm (2).
6. The PPD test picuma measuring device according to claim 5, characterized in that: The transparent plate (4) is provided with a recording rod placement hole (43), and a primary measurement recording rod (5) can be inserted into the recording rod placement hole (43).
7. The PPD test picuma measuring device according to any one of claims 1 to 6, characterized in that: The first measuring arm (1) comprises a first measuring arm body (11) and a first silicone head (12) connected to the front end of the first measuring arm body (11); the second measuring arm (2) comprises a second measuring arm body (21) and a second silicone head (22) connected to the front end of the second measuring arm body (21).