Abdominal circumference measuring device

Abstract

The utility model relates to an abdominal circumference measuring device which at least comprises a penetrating assembly. The penetrating assembly comprises a penetrating ruler, a penetrating piece and a hard penetrating carrier. The penetrating ruler is flexible, and the two ends of the penetrating ruler are a penetrating ruler reference end and a penetrating ruler penetrating end respectively. The penetrating piece is fixedly connected with the penetrating end of the penetrating ruler, and the penetrating piece is detachably and fixedly connected with the penetrating carrier. The abdominal girth measuring device has the advantages that the penetrating ruler and the penetrating piece can penetrate through the lower end of the abdomen when the human body keeps a lying posture, and the abdominal girth can be measured conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of abdominal circumference measuring device, especially for pregnant women and so on abdominal circumference measuring device. BACKGROUND

[0002] In patients, measuring abdominal circumference is one of the important indicators for assessing the condition, which is usually applicable to the following situations. Pregnancy-related assessment, including fetal growth monitoring assessment: by regularly measuring abdominal circumference and uterine height, assess whether the fetal development is consistent with the gestational age (especially when there is no ultrasonic examination condition); Multiple pregnancy assessment: multiple pregnancy may cause uterine overdistension, and the abdominal circumference growth needs to be monitored; Hydramnios (oligohydramnios) assessment: abnormal amniotic fluid volume may cause significant changes in abdominal circumference; Pregnancy complication assessment: such as preeclampsia combined with ascites or placental abruption leading to hemoperitoneum, which causes changes in abdominal circumference. Ascites monitoring, including gynecological malignant tumor monitoring: advanced patients with ovarian cancer, fallopian tube cancer, etc. often have ascites, and increased abdominal circumference indicates disease progression; Liver cirrhosis or portal hypertension monitoring: although not a primary gynecological disease, but when combined with gynecological problems, abdominal circumference needs to be monitored. Pelvic / abdominal mass monitoring, including huge uterine fibroids: significant uterine enlargement causes abdominal distension; Ovarian cysts: detection when the cyst volume is large or rapidly increasing in a short period of time; Endometrial ectopic cyst: larger chocolate cysts may cause changes in abdominal circumference. Infection and inflammation, including pelvic inflammatory disease (PID): severe infection may cause pelvic abscess or inflammatory mass, accompanied by abdominal distension, which may cause significant changes in abdominal circumference; Tuberculous peritonitis: chronic inflammation may cause ascites or adhesion mass, which may cause significant changes in abdominal circumference. Postoperative complication detection, including intestinal obstruction: if intestinal paralysis or mechanical obstruction occurs after gynecological surgery, increased abdominal circumference indicates disease deterioration; Intra-abdominal hemorrhage or fluid accumulation: postoperative hemorrhage or lymphocyst formation requires monitoring of abdominal circumference, etc. Ovarian hyperstimulation syndrome (OHSS) detection: including after assisted reproductive technology, ovarian hyperstimulation leading to ascites and abdominal distension, which requires dynamic monitoring of abdominal circumference and fluid balance, etc. Functional abdominal distension: such as chronic pelvic pain syndrome combined with intractable abdominal distension, which requires exclusion of organic lesions.

[0003] As described above, abdominal circumference measurement can assist in evaluating disease progression, treatment effect and complications, but it needs to be combined with other clinical data for comprehensive analysis, so in order to obtain a sufficient amount of abdominal circumference data, it is necessary to improve the convenience of measuring abdominal circumference. The traditional method is that the patient lies on the bed, and uses an ordinary tape or ruler to surround the patient's abdomen to measure the patient's abdominal circumference. During the measurement process, the tape or ruler usually needs to pass through the waist of the patient, and since the tape or ruler is flexible and it is difficult to pass through the waist of the lying patient, the patient usually needs to turn left and right, and the measurement personnel need to cooperate with the patient to place the tape or ruler at the position corresponding to the waist of the patient after the patient turns left and right, and then take out one end of the tape or ruler to make the tape or ruler pass through the waist of the patient, which is relatively inconvenient. Utility model content

[0004] One purpose of the utility model is to solve or alleviate the above technical problems.

[0005] The utility model takes the means for, abdominal circumference measuring device, it at least includes through component;Through component includes through ruler, through piece and hard through carrier;Through ruler has flexibility and both ends are through ruler reference end, through ruler through end respectively;Through piece is fixedly connected with through ruler through end, and through piece and through carrier are detachably fixedly connected.

[0006] The utility model reaches the effect for, when the human body keeps the posture of lying, through ruler and through piece can pass through the lower end of abdomen, and it is convenient to measure abdominal circumference.

[0007] Further technical scheme, through piece is provided with carrier connecting body, through carrier is provided with connecting slot, and carrier connecting body is embedded in connecting slot;The longitudinal section of carrier connecting body and the longitudinal section of connecting slot are all gradually increased in width along the direction that through ruler reference end points to through ruler through end.

[0008] When the human body keeps the posture of lying, through ruler and through piece can pass through the lower end of abdomen, and it is convenient to measure abdominal circumference, and through carrier can also ensure that through piece and through ruler through end pass through the abdomen from the lower end of abdomen.

[0009] Further technical scheme, the transverse section of through carrier is gradually reduced in width from top to bottom.

[0010] The bottom end of through carrier can reduce the contact area with bed, and it is convenient to move through carrier at the lower end of abdomen to fine-tune the position of through carrier to the required position.

[0011] Further technical scheme, it also includes proximal end component and connecting structure;Proximal end component includes proximal end ruler and proximal end carrier, and proximal end ruler has flexibility and both ends are proximal end ruler reference end, proximal end ruler operating end respectively;Through ruler reference end is fixedly connected with one end of through carrier, and proximal end ruler reference end is fixedly connected with one end of proximal end carrier, and one end of through carrier fixedly connected with through ruler reference end, one end of proximal end carrier fixedly connected with proximal end ruler reference end are connected through connecting structure, so that through carrier can be moved to overlap with through carrier.

[0012] The overall length of abdominal circumference measuring device of the embodiment of the utility model can be shortened, the portability can be improved, and abdominal circumference can be read above or on the side of abdomen, which is more convenient.

[0013] Further technical solutions, the girth measuring device is in the unfolded state, the intersection of the through carrier and the proximal carrier corresponds to the zero scale of the ruler reference end, and also corresponds to the zero scale of the proximal ruler reference end, the through piece is provided with a through hole; the position of the through hole corresponds to the maximum scale of the through ruler passing end.

[0014] The value on the proximal ruler operating end can be conveniently and accurately read, and the abdominal girth can be obtained.

[0015] Further technical solutions, the through carrier and / or the proximal carrier are provided with a ruler slot, the thickness of the ruler slot is equal to the thickness of the through ruler and the thickness of the proximal ruler, and the ruler slot of the through carrier and the ruler slot of the proximal carrier are opposite in the folded state.

[0016] In the folded state, the flexible through ruler and the proximal ruler are all kept in the ruler slot, which can prevent the through ruler and the proximal ruler from being entangled and knotted.

[0017] Further technical solutions, the proximal assembly further comprises an operating piece fixedly connected with the proximal ruler operating end, the operating piece is made of hard material; one end of the proximal carrier is fixedly provided with a retaining piece for retaining the operating piece and is provided with a taking-out notch; the operating piece is exposed from the taking-out notch.

[0018] The proximal ruler can be ensured to be in a straight line on the proximal carrier, which can prevent the through ruler and the proximal ruler from being entangled and knotted, and also facilitates the operation of measuring the abdominal girth.

[0019] Further technical solutions, the connecting structure comprises a connecting sliding piece; one of the proximal carrier and the through carrier is provided with a sliding groove, and the other is provided with a connecting sliding groove, and the connecting sliding piece is embedded in the sliding groove and can move along the sliding groove and is embedded in the connecting sliding groove.

[0020] In the unfolded state, the through carrier and the proximal carrier can be connected while the through assembly and the proximal assembly are two separate whole bodies, and the through assembly and the proximal assembly can be used separately, so that the versatility is high.

[0021] Further technical solutions, the connecting sliding piece is fixedly provided with a pulling ear; a part of the sliding groove is extended to form an exposed groove in communication with the outside; and the pulling ear is exposed from the exposed groove.

[0022] The connecting sliding piece can be conveniently pulled, so that the connecting sliding piece can be retracted into the sliding groove to prevent the connecting sliding piece from being damaged due to accidental collision in the folded state.

[0023] Further technical solutions, the inner end of the connecting sliding groove is fixedly provided with a connecting magnetic body; and the connecting sliding piece can be adsorbed by the connecting magnetic body.

[0024] The through carrier and the proximal carrier can be connected relatively firmly in the unfolded state. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a perspective view of an embodiment of the abdominal circumference measuring device of the present application; the abdominal circumference measuring device is in an unfolded state.

[0026] Figure 2 is a perspective exploded view of an embodiment of the abdominal circumference measuring device of the present application.

[0027] Figure 3 is a perspective exploded view of the passing assembly 1 of an embodiment of the present application.

[0028] Figure 4 is a perspective exploded view of the folding assembly 2 of an embodiment of the present application Figure 1 .

[0029] Figure 5 is a perspective exploded view of the folding assembly 2 of an embodiment of the present application Figure 2 .

[0030] Figure 6 is a side view of an embodiment of the abdominal circumference measuring device of the present application in use; the abdominal circumference measuring device is in an unfolded state; arrow one ARR1 indicates the direction in which the passing assembly 1 passes through the abdominal region 8 from the lower end of the abdominal region 8 (i.e. the waist); arrow two ARR2 indicates the general direction in which the passing member 13 encircles the abdominal region 8 as the passing member 112 of the measuring tape passes through the abdominal region 8 when measuring the abdominal circumference; arrow three ARR3 indicates the general direction in which the proximal tape operating end 212 encircles the abdominal region 8 as the operating member 23 operates the tape when measuring the abdominal circumference.

[0031] Figure 7 is a perspective view of an embodiment of the abdominal circumference measuring device of the present application; the abdominal circumference measuring device is in an unfolded state.

[0032] Figure 8 is a perspective view of an embodiment of the abdominal circumference measuring device of the present application; the abdominal circumference measuring device is in an unfolded state.

[0033] Figure 9 is a schematic view of detail one DTL1.

[0034] The drawing of the present application that best illustrates the technical features of the present application is Figure 6 .

[0035] Arrow one ARR1; Arrow two ARR2; Arrow three ARR3; Detail one DTL1; Passing component 1; Passing ruler 11; Passing ruler reference end 111; Passing ruler passing end 112; Passing carrier 12; Connection slot 122; Passing piece 13; Passing hole 131; Carrier connector 132; Proximal component 2; Proximal ruler 21; Proximal ruler reference end 211; Proximal ruler operation end 212; Proximal carrier 22; Extraction notch 221; Holding piece 222; Operation piece 23; Connection structure 3; Connection sliding piece 31; Sliding slot 311; Dabbing ear 312; Exposed slot 313; Connection sliding slot 32; Connection magnetic body 321; Magnetic piece 39; Magnetic piece hole 391; Ruler slot 4; Abdomen 8; Fixing hole 9. DETAILED DESCRIPTION

[0036] The specific embodiments of the utility model will be described below with reference to the drawings of the specification.

[0037] As a specific embodiment, the abdominal circumference measuring device of the embodiment of the utility model at least comprises a passing component 1.

[0038] The passing component 1 comprises a passing ruler 11, a passing piece 13 and a hard passing carrier 12.For example, the passing carrier 12 is made of plastic, wood or the like and is hard.

[0039] The passing ruler 11 is flexible and has a passing ruler reference end 111 and a passing ruler passing end 112 at both ends.For example, the passing ruler 11 is made of artificial leather, rubber or other conventional materials and is flexible.The end with zero scale of the passing ruler 11 is the passing ruler reference end 111 and the other end is the passing ruler passing end 112.

[0040] The passing piece 13 is fixedly connected with the passing ruler passing end 112, for example, the passing piece 13 and the passing ruler passing end 112 are both provided with a fixing hole 9, and a rivet or screw passes through the fixing hole 9 to fixedly connect the passing ruler passing end 112 with the passing piece 13.

[0041] The passing piece 13 is detachably fixedly connected with the passing carrier 12, for example, the passing piece 13 is provided with a carrier connector 132, the passing carrier 12 is provided with a connection slot 122, and the carrier connector 132 is embedded in the connection slot 122 to detachably fixedly connect the passing piece 13 with the passing carrier 12.Of course, the passing piece 13 and the passing carrier 12 can also be detachably fixedly connected by means of screws or magnetic attraction. Figure 6 As shown, the abdomen 8 represents the abdomen of a lying human body, and the lower end of the abdomen 8 is the waist. Figure 6As indicated by arrow ARR1, the through-carrier 12 pushes the through-piece 13 and the through-foot end 112, causing the through-piece 13 and the through-foot end 112 to pass through the abdomen 8 from below (usually directly opposite the navel or offset vertically by a certain distance from the navel) and then... Figure 6 As shown by arrow ARR2, after separating the through piece 13 from the through carrier 12, the through carrier 12 and the through end 112 of the through ruler pass around the abdomen 8 to the zero mark on the reference end 111 of the through ruler, and the abdominal circumference can be read. It can be seen from the above that when the human body is in a supine position, the through ruler 11 and the through piece 13 can pass through the lower end of the abdomen 8, facilitating the measurement of the abdominal circumference without requiring the human body to repeatedly turn to allow the through ruler 11 and the through piece 13 to pass through the lower end of the abdomen 8. The longitudinal sections of the carrier connector 132 and the connecting slot 122 are approximately trapezoidal, T-shaped, or similar shapes whose width gradually increases as the reference end 111 of the through ruler points towards the through end 112 of the through ruler. This restricts the movement of the through piece 13 along the through carrier 12 and ensures that the through carrier 12 pushes the through piece 13 and the through end 112 of the through ruler through the lower end of the abdomen 8.

[0042] As one specific implementation, the cross-section of the carrier 12 is a shape that gradually decreases in width from top to bottom, such as a minor arc or triangle. This reduces the contact area between the bottom end of the carrier 12 and the bed or similar surface, making it easier to move the carrier 12 at the lower end of the abdomen 8 and fine-tune its position to the desired location, such as the navel directly opposite the abdomen 8. It is easy to understand that, in the embodiment with proximal component 2 described later, the cross-section of the proximal carrier 22 is exactly the same as the cross-section of the carrier 11.

[0043] As one of the specific embodiments, the abdominal circumference measuring device further comprises a proximal end assembly 2 and a connecting structure 3; the proximal end assembly 2 comprises a proximal end ruler 21 and a proximal end carrier 22, the proximal end ruler 21 is flexible and has two ends, which are a proximal end ruler reference end 211 and a proximal end ruler operation end 212; the proximal end ruler reference end 211 is fixedly connected with one end of the through carrier 12, the proximal end ruler reference end 211 is fixedly connected with one end of the proximal end carrier 22, the end of the through carrier 12 fixedly connected with the through ruler reference end 111 and the end of the proximal end carrier 22 fixedly connected with the proximal end ruler reference end 211 are connected through the connecting structure 3, so that the through carrier 12 can be moved to overlap with the through carrier 12 (i.e. the abdominal circumference measuring device is in a folded state). For example, the end of the through carrier 12 fixedly connected with the through ruler reference end 111 and the end of the proximal end carrier 22 fixedly connected with the proximal end ruler reference end 211 are rotatably connected through the connecting structure 3 which is a hinge, the proximal end carrier 22 rotates approximately one hundred and eighty degrees relative to the through carrier 12 and overlaps with the through carrier 12, which can shorten the overall length of the abdominal circumference measuring device of the embodiment of the utility model (usually, the sum of the maximum scale corresponding value of the through ruler 11 and the maximum scale corresponding value of the proximal end ruler 21 corresponds to the maximum size of the experience value required for measuring the abdominal circumference, such as 120 cm), and improves portability. It is easy to understand that the connecting structure 3 is not limited to a hinge, but can also be connected by screws, buckles, magnets, etc. The mode of the later-described embodiment can also be used. As shown in Figure 6 When the abdominal circumference needs to be measured, the proximal end carrier 22 is moved to be in a straight line with the through carrier 12 as a whole, so that the abdominal circumference measuring device of the embodiment of the utility model is in an unfolded state; as shown by an arrow one ARR1, Figure 6 The through carrier 12 is pushed by the proximal end carrier 22 to pass through the through piece 13 and the through ruler passing end 112, so that the through piece 13 and the through ruler passing end 112 pass through the abdomen 8 from below the abdomen 8 at this time. The end of the through carrier 12 fixedly connected with the through ruler reference end 111 and the end of the proximal end carrier 22 fixedly connected with the proximal end ruler operation end 212 are located at the lower end of the abdomen 8; then, as shown by an arrow two ARR2, Figure 6 The through carrier 12 and the through ruler passing end 112 are separated from the through piece 13 and pass around the abdomen 8, and Figure 6The arrow three ARR3 shows that the proximal end ruler operating end 212 is passed around the abdomen 8, so that the proximal end ruler operating end 212 is staggered with the passing through ruler passing end 112 above the abdomen 8 to read the abdominal circumference; compared with the embodiment of only the passing through assembly 1, the passing through ruler passing end 112 does not need to pass around the abdomen 8 once, and the embodiment can read the abdominal circumference above or on the side of the abdomen 8, which is more convenient. When the abdominal circumference measuring device is in the unfolded state, the interface of the passing through carrier 12 and the proximal end carrier 22 corresponds to the zero scale of the passing through ruler reference end 111, and also corresponds to the zero scale of the proximal end ruler reference end 211. The maximum scale of the passing through ruler passing end 112 or the maximum scale of the proximal end ruler operating end 212 corresponds to an integer value, such as 50 cm or 60 cm, etc. When reading the abdominal circumference, the value of the maximum scale of the passing through ruler passing end 112 or the proximal end ruler operating end 212 is added to the value read on the other one with the maximum scale, such as 60 cm corresponding to the maximum scale of the passing through ruler passing end 112 plus 35 cm read on the proximal end ruler operating end 212 with the 60 cm scale, to get the abdominal circumference of 95 cm, which is convenient for calculating the abdominal circumference. Specifically, the passing through piece 13 is provided with a passing through hole 131; the position of the passing through hole 131 corresponds to the maximum scale of the passing through ruler passing end 112. The proximal end ruler operating end 212 is passed through the passing through hole 131, which can conveniently and accurately read the value on the proximal end ruler operating end 212 and obtain the abdominal circumference.

[0044] As one of the specific embodiments, the passing through carrier 12 and / or the proximal end carrier 22 is provided with a ruler slot 4, the thickness of the ruler slot 4 is equal to the thickness of the passing through ruler 11 and equal to the thickness of the proximal end ruler 21, it is easy to understand that the thickness of the passing through ruler 11 is equal to the thickness of the proximal end ruler 21. In the folded state, the ruler slot 4 of the passing through carrier 12 and the ruler slot 4 of the proximal end carrier 22 are opposite. In the folded state, the flexible passing through ruler 11 and the proximal end ruler 21 are all kept in the ruler slot 4, which can prevent the passing through ruler 11 and the proximal end ruler 21 from being tangled and knotted.

[0045] As one of the specific embodiments, the passing through carrier 12 and / or the proximal end carrier 22 is fixedly provided with a magnetic piece 39, and the magnetic piece 39 can attract the other one of the two; usually, the passing through carrier 12 and / or the proximal end carrier 22 is provided with a magnetic piece hole 391, and the magnetic piece 39 is embedded in the magnetic piece hole 391 and adhesively fixed. For the embodiment that the passing through carrier 12 and the proximal end carrier 22 are both provided with the magnetic piece 39, the magnetic pieces 39 of the two attract each other. For the embodiment that one of the passing through carrier 12 and the proximal end carrier 22 is provided with the magnetic piece 39, the other one is made of iron or other materials and can be attracted by the magnetic piece 39. It can ensure the stability of the folded state of the abdominal circumference measuring device and facilitate use.

[0046] As one of the specific embodiments, the proximal assembly 2 further comprises an operating piece 23 fixedly connected with the proximal ruler operating end 212, and the operating piece 23 is made of hard material; one end of the proximal carrier 22 is fixedly provided with a retaining piece 222 for retaining the operating piece 23 and is provided with a taking-out gap 221; the operating piece 23 is exposed from the taking-out gap 221. For example, the retaining piece 222 is a magnet for attracting the iron operating piece 23, or the retaining piece 222 is a buckle for clamping the operating piece 23, or the retaining piece 222 is a pin for penetrating the operating piece 23 and being embedded in the proximal carrier 22, etc. The proximal ruler 21 can be ensured to be in a straight line on the proximal carrier 22, and the winding and knotting of the ruler 11 and the proximal ruler 21 can be prevented; in addition, after the operating piece 23 is taken off from the taking-out gap 221 by a finger, the operating piece 23 can be measured by penetrating the ruler hole 131, and the proximal ruler operating end 212 is not difficult to penetrate the ruler hole 131 due to the flexibility of the proximal ruler 21, so that the operation of measuring the abdominal circumference is facilitated.

[0047] As one of the specific embodiments, the connecting structure 3 comprises a connecting sliding piece 31; one of the proximal carrier 22 and the penetrating carrier 12 is provided with a sliding groove 311, and the other is provided with a connecting sliding groove 32, and the connecting sliding piece 31 is embedded in the sliding groove 311 and can move along the sliding groove 311 and is embedded in the connecting sliding groove 32. The penetrating assembly 1 and the proximal assembly 2 can be two separate whole bodies in the unfolded state, and the penetrating assembly 1 and the proximal assembly 2 can be used separately (for example, for measuring the smaller abdominal circumference of children, etc.), and the versatility is higher.

[0048] As one of the specific embodiments, the connecting sliding piece 31 is fixedly provided with a pushing ear 312; a part of the sliding groove 311 is extended to form an exposed groove 313 in communication with the outside; and the pushing ear 312 is exposed from the exposed groove 313. The connecting sliding piece 31 can be pushed, so that the connecting sliding piece 31 can be retracted into the sliding groove 311 to prevent damage due to accidental touch in the folded state.

[0049] As one of the specific embodiments, the inner end of the connecting sliding groove 32 is fixedly provided with a connecting magnetic body 321; and the connecting sliding piece 31 can be attracted by the connecting magnetic body 321, for example, the connecting sliding piece 31 is made of iron. The penetrating carrier 12 and the proximal carrier 22 can be connected more firmly in the unfolded state.

[0050] In the present application, the terms such as first, second, etc. do not represent any order, quantity or importance, but are only used for distinction.

[0051] In the present application, the terms such as one, kind, etc. do not represent the limitation of quantity, but represent the existence of at least one mentioned object.

[0052] As the terms indicating the direction or position used in the utility model: top, bottom, side, longitudinal, transverse, middle, center, outer, inner, horizontal, vertical, left, right, upper, lower, etc., mean reflecting relative position, not absolute position.

[0053] As the terms used in the utility model: approximately, overall, approximately, similar, etc., are defined terms to indicate the existence of characteristics but allow certain deviations. The amount of deviation allowed can vary depending on the specific context; for example, the deviation for the size can depend on the specific context, including but not limited to the relevant standards for dimensional tolerance.

Claims

1. An abdominal girth measuring device, characterised in that, It at least includes a passing assembly (1); the passing assembly (1) includes a passing ruler (11), a passing piece (13) and a hard passing carrier (12); the passing ruler (11) is flexible and has a passing ruler reference end (111) and a passing ruler passing end (112) at two ends respectively; the passing piece (13) is fixedly connected with the passing ruler passing end (112), and the passing piece (13) is detachably fixedly connected with the passing carrier (12).

2. The abdominal girth measuring device of claim 1, wherein, The passing piece (13) is provided with a carrier connecting body (132), the passing carrier (12) is provided with a connecting slot (122), and the carrier connecting body (132) is embedded into the connecting slot (122); the longitudinal section of the carrier connecting body (132) and the longitudinal section of the connecting slot (122) are both gradually increased in width along the direction from the passing ruler reference end (111) to the passing ruler passing end (112).

3. The abdominal girth measuring device of claim 1, wherein, The transverse section of the passing carrier (12) is gradually decreased in width from top to bottom.

4. The abdominal girth measuring device of claim 1, wherein, It also includes a proximal end assembly (2) and a connecting structure (3); the proximal end assembly (2) includes a proximal end ruler (21) and a proximal end carrier (22), the proximal end ruler (21) is flexible and has a proximal end ruler reference end (211) and a proximal end ruler operation end (212) at two ends respectively; the passing ruler reference end (111) is fixedly connected with one end of the passing carrier (12), the proximal end ruler reference end (211) is fixedly connected with one end of the proximal end carrier (22), and the one end of the passing carrier (12) fixedly connected with the passing ruler reference end (111) and the one end of the proximal end carrier (22) fixedly connected with the proximal end ruler reference end (211) are connected through the connecting structure (3), so that the proximal end carrier (22) can be moved to overlap with the passing carrier (12).

5. The abdominal girth measuring device of claim 4, wherein, The zero scale of the passing ruler reference end (111) and the zero scale of the proximal end ruler reference end (211) correspond to the interface of the passing carrier (12) and the proximal end carrier (22) in the unfolded state of the abdominal circumference measuring device, and the passing piece (13) is provided with a passing hole (131); the position of the passing hole (131) corresponds to the maximum scale of the passing ruler passing end (112).

6. The abdominal girth measuring device of claim 4, wherein, The passing carrier (12) and / or the proximal end carrier (22) are provided with a ruler slot (4), the thickness of the ruler slot (4) is equal to the thickness of the passing ruler (11) and the thickness of the proximal end ruler (21), and the ruler slot (4) of the passing carrier (12) and the ruler slot (4) of the proximal end carrier (22) are opposite in the folded state.

7. The abdominal girth measuring device of claim 5, wherein, The proximal end assembly (2) further includes an operation piece (23) fixedly connected with the proximal end ruler operation end (212), and the operation piece (23) is made of hard material; one end of the proximal end carrier (22) is fixedly provided with a retaining piece (222) for retaining the operation piece (23) and is provided with a taking-out notch (221); the operation piece (23) is exposed outside the taking-out notch (221).

8. The abdominal girth measuring device of claim 4, wherein, The connecting structure (3) includes a connecting sliding piece (31); one of the proximal end carrier (22) and the passing carrier (12) is provided with a sliding slot (311), and the other is provided with a connecting sliding slot (32); the connecting sliding piece (31) is embedded into the sliding slot (311) and can move along the sliding slot (311) and is embedded into the connecting sliding slot (32).

9. The abdominal girth measuring device of claim 8, wherein, The connecting sliding piece (31) is fixedly provided with a pushing lug (312); a part of the sliding groove (311) extends to form an exposed groove (313) in communication with the outside; the pushing lug (312) is exposed from the exposed groove (313).

10. The abdominal girth measuring device of claim 8, wherein, The inner end of the connecting sliding groove (32) is fixedly provided with a connecting magnetic body (321); the connecting sliding piece (31) can be adsorbed by the connecting magnetic body (321).

Images