Mouth opening measuring device for forensic medicine
By designing a forensic tension measuring meter that includes the main ruler, auxiliary ruler, and braces, the problem of poor measurement accuracy, insufficient hygiene, and difficulty in the appraisal of the existing forensic tension check method have been solved. Sanitary tension measurement is particularly suitable for limited people.
Patent Information
- Application Number
- CN202420398591.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-01
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-03-01
AI Technical Summary
The existing forensic oral opening test methods have problems such as poor measurement accuracy, inadequate hygiene, and difficulty in cooperating with the examined person, especially in people with loss of auditory, visual function, upper limb injury or intellectual decline.
A forensic tension measuring meter is designed, including the main ruler, auxiliary ruler, and braces. Through the sliding coordination of the main and auxiliary ruler, it uses the braces to fit with the teeth to improve the accuracy and hygiene of the measuring mouth.
It improves the accuracy and hygiene of tensor measurement, facilitates the cooperation of the appraisal person, and is particularly suitable for people with limited functional affordables, which meets the requirements of the "Excisible Inspection Standards for Human Body Injury" and "Forensic Clinical Test Specifications".
Smart Images
Figure CN222398348U_ABST
Abstract
Description
Technical field:
[0001] The utility model relates to the technical field of forensic medicine, in particular to a measuring device for measuring the mouth opening degree of a person to be identified in forensic identification. Background technology:
[0002] In forensic identification, forensic clinical appraisers often encounter cases of oral injury. Limited mouth opening is one of the common consequences of oral injury. Measuring the degree of mouth opening of the person being identified is an indispensable task in forensic identification.
[0003] Appendix B.2.5 of the "Standards for the Assessment of the Degree of Human Injury" jointly issued by the Supreme People's Court, the Supreme People's Procuratorate, the Ministry of Public Security, the Ministry of State Security, and the Ministry of Justice stipulates that difficulty in opening the mouth degree I: when the mouth is opened wide, only the index finger and middle finger can be placed vertically; difficulty in opening the mouth degree II: when the mouth is opened wide, only the index finger can be placed vertically; difficulty in opening the mouth degree III: when the mouth is opened wide, the distance between the upper and lower incisors is smaller than the transverse diameter of the index finger.
[0004] Appendix B.17 of the "Classification of Disability Caused by Human Injury" jointly issued by the Supreme People's Court, the Supreme People's Procuratorate, the Ministry of Public Security, the Ministry of State Security, and the Ministry of Justice stipulates that: limited mouth opening I: when the mouth is opened as wide as possible, the index finger and the middle finger can only be inserted vertically and side by side between the upper and lower incisors; limited mouth opening II: when the mouth is opened as wide as possible, only the index finger can be inserted vertically between the upper and lower incisors; limited mouth opening III: when the mouth is opened as wide as possible, the distance between the upper and lower incisors is smaller than the horizontal diameter of the index finger.
[0005] The existing forensic mouth opening examination method is manual inspection, which is specifically stipulated in Article 7.5.2.5 of the "Forensic Clinical Examination Specifications" (SF / T0111-2021) issued by the Ministry of Justice.
[0006] The existing forensic mouth opening examination method requires the person being examined to lift his shoulder joint as much as possible, flex his elbow and wrist joints, put his index, middle and ring fingers into the mouth, and observe how the fingers fit between the upper and lower incisors. The existing method has the problem of poor measurement accuracy and unhygienic inspection process.
[0007] Since the forensic mouth opening examination method requires the person being examined to put his or her index, middle and ring fingers into the mouth, some people with hearing and visual function loss, upper limb injuries resulting in decreased limb movement function, as well as people with decreased intelligence and mental disorders find it difficult to cooperate with the current manual examination method, which brings difficulties to forensic identification work. Utility model content:
[0008] In view of the problems existing in the mouth opening inspection method in the above-mentioned forensic identification work, the utility model aims to solve the problems of poor measurement accuracy, lack of hygiene, and difficulty in cooperation of the person being identified mentioned in the background technology, and complies with the technical requirements for mouth opening measurement stipulated in the "Standards for the Identification of the Degree of Human Injury", "Classification of the Degree of Disability Caused by Human Injury", and "Forensic Clinical Examination Specifications" (SF / T 0111-2021) in the above-mentioned technical background.
[0009] The utility model provides a forensic mouth opening measuring device, which comprises a main ruler, a secondary ruler and a dental brace. The dental brace comprises a first dental brace and a second dental brace.
[0010] The main ruler comprises an upper beak of the main ruler, a lower beak of the main ruler, main ruler scales, and a hand-held handle.
[0011] The accessory scale includes the upper beak of the accessory scale and the lower beak of the accessory scale.
[0012] The secondary scale surrounds the main scale and can slide on the main scale.
[0013] The upper beak of the main ruler and the upper beak of the secondary ruler are equipped with braces (the single-layer wall thickness is 0.05cm), and the specifications, models, sizes, etc. of the two braces are consistent.
[0014] The width of the upper beak of the main scale is equal to that of the upper beak of the secondary scale (both are 0.4cm), and they can completely overlap. When the upper beak of the main scale completely overlaps with the upper beak of the secondary scale, the distance between the lower beak of the main scale and the lower beak of the secondary scale (0.5cm) is equal to the width of the upper beak of the main scale (0.4cm) plus the double wall thickness of the braces (0.1cm).
[0015] The scale range of the main ruler is 0 to 10.0 cm, and the 0 cm starting line is flush with the upper edge of the lower beak of the main ruler. Description of the drawings:
[0016] Figure 1 It is a front view of a forensic mouth opening measuring device provided by the utility model, when the beak on the main scale and the beak on the auxiliary scale completely overlap.
[0017] Figure 2 It is a front view of a forensic mouth opening measuring device provided by the utility model, when the beak on the main scale and the beak on the auxiliary scale are separated.
[0018] Figure 3 It is a back view of a forensic mouth opening measuring device provided by the utility model, when the beak on the main scale and the beak on the auxiliary scale completely overlap.
[0019] Figure 4 It is a back view of a forensic mouth opening measuring device provided by the utility model, when the beak on the main scale and the beak on the auxiliary scale are separated.
[0020] Figure 5The utility model provides a schematic diagram of a forensic mouth opening measuring device during measurement. The upper beak of the main ruler and the upper beak of the auxiliary ruler are equipped with braces. The upper edge of the upper beak of the auxiliary ruler fits with the lower edge of the upper incisor of the human body, and the lower edge of the upper beak of the main ruler fits with the upper edge of the lower incisor of the human body. The index, middle and ring fingers of the human body are vertically placed between the lower beak of the auxiliary ruler and the lower beak of the main ruler.
[0021] 1-main ruler, 11-upper beak of main ruler, 12-lower beak of main ruler, 13-scale of main ruler, 14-handle, 2-secondary ruler, 21-upper beak of secondary ruler, 22-lower beak of secondary ruler, 3-tooth braces, 31-first tooth braces, 32-second tooth braces. Specific implementation method:
[0022] The following describes the implementation of the present utility model in conjunction with the accompanying drawings.
[0023] like Figure 5 As shown, the utility model provides a forensic mouth opening measuring device, wherein the main ruler 1 comprises a main ruler upper beak 11, a main ruler lower beak 12, a main ruler scale 13, and a hand-held handle 14; the secondary ruler 2 comprises a secondary ruler upper beak 21, and a secondary ruler lower beak 22; the secondary ruler 2 surrounds the main ruler 1; and the secondary ruler 2 can slide on the main ruler 1.
[0024] When measuring mouth opening, Figure 5 As shown, the handle 14 of the main ruler 1 can be held by the person being identified himself or by another person; the first brace 31 is mounted on the upper beak 11 of the main ruler, and the second brace 32 is mounted on the upper beak 21 of the auxiliary ruler; the lower edge of the upper beak 11 of the main ruler fits with the upper edge of the lower incisor of the human body, and the upper edge of the upper beak 21 of the auxiliary ruler fits with the lower edge of the upper incisor of the human body, and a human finger is placed vertically and parallelly between the lower beak 22 of the auxiliary ruler and the lower beak 12 of the main ruler.
[0025] When measuring mouth opening, Figure 5 As shown, the forensic examiner can determine the degree of mouth opening restriction by observing the number of fingers of the person being examined placed between the lower beak 22 of the secondary ruler and the lower beak 12 of the main ruler, and provide more accurate measurement data by recording the measurement value shown on the main ruler scale 13.
[0026] When measuring mouth opening, Figure 1 As shown, if the person being identified has severe oral damage, only the upper beak 11 of the main ruler and the upper beak 21 of the secondary ruler can be placed between the upper and lower incisors, and it is difficult to place a human finger between the lower beak 22 of the secondary ruler and the lower beak 12 of the main ruler. The measurement value shown on the main ruler scale 13 is the sum of the double-layer wall thickness of the upper beak 11 of the main ruler and the first brace 31 (a total of 0.5 cm).
[0027] When measuring the mouth opening, if the person being assessed has extremely severe oral damage and it is difficult to place completely overlapping upper beaks of the main ruler 11 and the upper beaks of the secondary ruler 21 between the upper and lower incisors, the mouth opening can be determined to be less than 0.5 cm.
Claims
1. A forensic mouth opening measuring device, characterized in that: The forensic mouth opening measuring device comprises a main ruler (1), a secondary ruler (2), and a dental brace (3); the dental brace (3) comprises a first dental brace (31) and a second dental brace (32); the main ruler (1) comprises a main ruler upper beak (11), a main ruler lower beak (12), a main ruler scale (13), and a hand-held handle (14); the secondary ruler (2) comprises a secondary ruler upper beak (21) and a secondary ruler lower beak (22); the secondary ruler (2) surrounds the main ruler (1); and the secondary ruler (2) can slide on the main ruler (1).
2. The forensic mouth opening measuring device according to claim 1, characterized in that: The upper beak (11) of the main ruler is equipped with a first tooth sleeve (31), and the upper beak (21) of the secondary ruler is equipped with a second tooth sleeve (32). The single-layer wall thickness of the first tooth sleeve (31) and the second tooth sleeve (32) is 0.05 cm. The upper beak (11) of the main ruler and the upper beak (21) of the secondary ruler are equal in width, both of which are 0.4 cm. The upper beak (11) of the main ruler and the upper beak (21) of the secondary ruler can completely overlap.
3. The forensic mouth opening measuring device according to claim 2, characterized in that: When the upper beak (11) of the main ruler and the upper beak (21) of the secondary ruler completely overlap, the distance between the lower beak (12) of the main ruler and the lower beak (22) of the secondary ruler is equal to the width of the upper beak (11) of the main ruler plus the double wall thickness of the tooth sleeve (3).
4. The forensic mouth opening measuring device according to claim 1, characterized in that: The measuring range of the main scale (13) is 0 to 10.0 cm, and the 0 cm starting point line is flush with the upper edge of the lower beak (12) of the main scale.
5. The forensic mouth opening measuring device according to claim 1, characterized in that: When measuring the mouth opening degree, the hand grip (14) of the main ruler (1) can be hand-held, the lower edge of the upper beak (11) of the main ruler fits with the upper edge of the lower incisor of the human body, the upper edge of the upper beak (21) of the auxiliary ruler fits with the lower edge of the upper incisor of the human body, and a human finger can be inserted between the lower beak (22) of the auxiliary ruler and the lower beak (12) of the main ruler, and the mouth opening degree is judged according to the number of human fingers inserted.