CN110575167A - Flexible abdominal ruler for measuring electrode distance - Google Patents
Flexible abdominal ruler for measuring electrode distance Download PDFInfo
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- CN110575167A CN110575167A CN201910870426.5A CN201910870426A CN110575167A CN 110575167 A CN110575167 A CN 110575167A CN 201910870426 A CN201910870426 A CN 201910870426A CN 110575167 A CN110575167 A CN 110575167A
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- ruler
- fastening
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/389—Electromyography [EMG]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6823—Trunk, e.g., chest, back, abdomen, hip
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
- A61B2090/061—Measuring instruments not otherwise provided for for measuring dimensions, e.g. length
Abstract
A flexible abdominal ruler for measuring electrode distance belongs to the technical field of flexible abdominal rulers. Comprises a flexible scale panel (1), a movable electrode (2), a positioning disc (3) and an electrode fastening device (4); when the flexible abdominal ruler is used, the surface of the abdomen of a pregnant woman is covered by the flexible abdominal ruler, the fixing buckle (10) of the electrode fastening device (4) is pinched according to the size of the abdomen of the pregnant woman, the movable electrode (2) is moved to a proper position, the fixing buckle is loosened, the position of the electrode is recorded, and the electrode distance can be calculated. The invention has the advantages of convenient and fast operation, high measurement precision and accurate reading. The method provides key data support for researching conduction information of the uterine myoelectric signals.
Description
Technical Field
the invention relates to a flexible abdominal ruler, in particular to a flexible abdominal ruler for measuring the abdominal electrode distance of a pregnant woman.
background
Uterine contraction, which is the contraction of the uterus, directly promotes the fetus to discharge from the mother, and is the motive force for promoting delivery. The uterine contraction is an important basis for reflecting the childbirth state of the pregnant woman, and the monitoring of the uterine contraction has important significance for ensuring the health of the mother fetus. During labor examinations, contractions are often monitored by an Intrauterine pressure catheter (IUPC), a tocolumometer (tocolumometer, TOCO) and a physician palpating the abdomen of the pregnant woman. The IUPC method, which is an invasive measurement method in which a catheter is inserted into a uterine cavity through the vagina and intrauterine or amniotic fluid pressure is measured by using a sensor on the catheter, reflects the uterine contraction pressure value, duration, pause time, etc., may cause infection if carelessly operated, and thus cannot be used for routine monitoring. The TOCO is a non-invasive measurement method, a pressure sensor is fixed on the abdomen by an elastic band, and the intrauterine pressure is indirectly evaluated by measuring the deformation of the abdomen, so that the measured pressure is influenced by a measurement initial value and the tightness degree of belt bundling, and is also easily influenced by the body position and obesity of a lying-in woman. Some pregnant women can sense uterine contraction, and some can not. The pregnant woman feels the uterine contraction by palpating the abdomen of the pregnant woman, and the method has strong subjectivity and is inconvenient for long-term monitoring.
Uterine Electromyogram (EHG) is closely related to mechanical activity of uterus, and is expected to become a means for effectively identifying and monitoring uterine contractions of pregnant and lying-in women. Assessment of the magnitude and direction of EHG conduction velocity is a novel approach to diagnosis of preterm labor. Studies have shown that near parturition, there is a significant change in the number of uterine myocyte gap junctions, which results in an increase in EHG signaling rate, and that uterine contractions, both in the state of labor and non-labor, can be identified by estimating the rate of conduction, providing a basis for diagnosing preterm labor. The conduction velocity is obtained by using the ratio of the distance between the electrodes to the conduction time between the corresponding electrodes, so that the electrode distance needs to be measured accurately and conveniently in clinic. At present, the electrodes are placed according to the position of the uterus, the uterus is touched to find the position of the uterus, the electrodes are placed at specific positions of the uterus, and the positions and the number of the electrodes are determined according to the experimental requirements. After pregnancy, the uterus of the mother has changed significantly to adapt to the growth of the fetus. Before pregnancy the uterus was only small pears, 50 grams in weight and a volume of about 7 cm 4.5 cm 3.5 cm. Generally, when a single fetus is pregnant in a full term, the uterus weight is 1000 g, which is increased by 20 times, 5000 ml of contents such as fetus, amniotic fluid and the like can be accommodated, and the full term uterus is 35 cm long, 25 cm wide and about 22 cm thick. After pregnancy, the uterus can be gradually enlarged along with the growth and development of a fetus, so the distance between electrodes is different between people and the pregnant week, the distance between the electrodes needs to be measured by a ruler, and the problems of inaccurate measurement, inconvenience and the like exist in actual operation. Aiming at the problem, the invention provides a flexible abdominal ruler for measuring the distance between electrodes on the abdomen of a pregnant woman, and the relative position between different electrodes is calculated by recording the coordinates of each electrode.
Disclosure of Invention
aiming at the defects of the prior art, the invention provides a flexible abdominal ruler for measuring the abdominal electrode distance of a pregnant woman.
the invention discloses a flexible abdominal ruler for measuring the abdominal electrode distance of a pregnant woman, which comprises a flexible graduated scale panel (1), a movable electrode (2), a positioning disc (3) and an electrode fastening device (4).
the flexible graduated scale panel (1) is made of silica gel or Polyamide (PA), and the flexible graduated scale panel (1) is a flexible plate with the length of 70-450mm, the width of 45-350mm and the thickness of no more than 2mm according to different numbers and positions of the movable electrodes (2); the flexible graduated scale panel (1) is provided with at least two graduated scale round holes (5), and the radius of the graduated scale round holes (5) is 3.5-34.5 mm;
The movable electrode (2) comprises an electrode (6), a hard disc (7) and a cylinder (8), the electrode (6) is a common disc electrode and is in a plane circular plate structure, the electrode (6) and the hard disc (7) are the same in diameter and are coaxially and fixedly attached together, and the electrode (6) is positioned at the lowest part of the whole movable electrode (2) and is used for attaching to the abdomen; a cylinder (8) is coaxially fixed at the center of the upper surface of the hard disc (7); the diameters of the electrode (6) and the hard disc (7) are larger than the diameter of the round hole (5) of the graduated scale, and the diameter of the cylinder (8) is smaller than the diameter of the round hole (5) of the graduated scale; the cylinder (8) upwards penetrates through the round hole (5) of the graduated scale, and the electrode (6) and the hard disc (7) are positioned below the panel (1) of the flexible graduated scale;
The positioning disc (3) is a plane circular ring structure which has the same diameter as and is parallel to the hard disc (7).
The electrode fastening device (4) comprises a round tube-shaped fixed shell (9), two fastening buckles (10) and two springs (11); the fixed shell (9) is positioned on the positioning disc (3), and the positioning disc (3) and the fixed shell (9) are coaxial and fixed into a whole; a waist-shaped through hole B is formed in one side wall of the diameter surface A of the fixed shell (9), and a circular blind hole C is formed in the inner side wall opposite to the waist-shaped through hole B; similarly, a waist-shaped through hole E is formed in one side wall of the diameter surface D, and a circular blind hole F is formed in the inner side wall opposite to the waist-shaped through hole E; the round blind hole F and the waist-shaped through hole B are on the same side surface, and the round blind hole C and the waist-shaped through hole E are on the same side surface; the A-diameter surface and the D-diameter surface are spaced; the diameter of a central hole of the positioning disc (3) is not more than that of the fixed shell (9), the diameters of the central hole and the fixed shell are both larger than that of the cylinder (8), and the cylinder (8) upwards sequentially penetrates through the positioning disc (3) and the fixed shell (9); the positioning disc (3) is positioned on the flexible graduated scale panel (1); the whole fastening buckle (10) is in a shape of a flat runway, two ends of the fastening buckle are semicircular, the middle of the fastening buckle is rectangular, the semicircular diameter is equal to the width of the rectangle, a hole structure (12) consisting of a semicircular hole and a rectangular hole is arranged on a flat plate at one end of the fastening buckle (10), the hole structure (12) is formed by connecting the semicircular hole and the rectangular hole, the diameter of the semicircular hole at the connecting part is equal to the width of the rectangular hole, and the semicircular hole is positioned at the end edge relative to the rectangular hole; the end surface of the end of the fastening buckle (10) with the hole structure (12) is of a semicircular structure; the diameter of the semicircular hole in the fastening buckle (10) is not less than that of the cylinder (8); the semicircular end of a fastening buckle hole structure (12) transversely penetrates through the waist-shaped through hole B of the fixed shell, the round blind hole C is fixed with one end of a spring, and the other end of the spring is fixed with the end surface of the semicircular ring of the fastening buckle; similarly, the semicircular ring end of the other fastening buckle hole structure (12) transversely penetrates through the waist-shaped through hole E of the fixed shell, the round blind hole F is fixed with one end of the other spring, and the other end of the spring is fixed with the end surface of the semicircular ring structure of the other fastening buckle; the cylinder (8) sequentially passes through the hole structures (12) of the two fastening buckles (10), and the connected springs are always in a compressed state; the two springs are pressed simultaneously through the two fastening buckles (10), when the two springs are further compressed, the inner walls of the hole structures (12) of the fastening buckles (10) are separated from the cylinder (8), the two fastening buckles (10) are pressed along the radial direction of the cylinder and lifted upwards to move left and right, the positioning disc (3) and the flexible graduated scale panel (1) are reduced in friction when lifted upwards, the cylinder (8) is driven to move left and right by moving left and right to drive the electrode to move left and right, and the movable electrode (2) can move at various angles by adopting the method so as to adjust the distances of the abdominal electrodes of different pregnancies; after the position is determined, the fixed shell is pressed downwards, then the pressure of the two fastening buckles (10) is released, at the moment, the positioning disc and the hard disc clamp the flexible graduated scale panel (1), and the two fastening buckles (10) clamp the cylinder (8), so that the position of the movable electrode (2) is fixed;
The upper surface of flexible scale panel (1) is equipped with square scale, and the upper surface center of location disc is equipped with cross location pointer, and cross location pointer is used for instructing the square scale that movable electrode (2) central point put the correspondence.
The 0 point of the flexible graduated scale panel (1) is arranged at the lower left corner, scales are marked in the horizontal direction and the vertical direction which are connected with the 0 point, the minimum unit is 1mm (figure 3), and the scales are marked in the horizontal (X) direction and the vertical (Y) direction respectively by straight lines along the scales.
For convenience of operation, the number of the movable electrodes (2) is not more than 64.
The positioning disc (3) (fig. 6) is made of Polystyrene (PS) and is shaped like a circular ring, with an outer circle radius of 4-35mm, the same as the radius of the electrodes, and an inner circle radius of 1.5-5.5 mm.
when the flexible abdominal ruler is used, the surface of the abdomen of a pregnant woman is covered by the flexible abdominal ruler, the fixing buckle (10) of the electrode fastening device (4) is pinched according to the size of the abdomen of the pregnant woman, the movable electrode (2) is moved to a proper position, the fixing buckle is loosened, the position of the electrode is recorded, and the electrode distance can be calculated.
The invention has the advantages that the flexible abdominal ruler for measuring the distance of the movable electrode is designed, the operation is convenient and fast, the measurement precision is high, and the reading is accurate. Providing key data support for researching conducted information of the EHG.
Drawings
FIG. 1 is a partial perspective exploded view of a flexible web ruler for measuring electrode spacing according to the present invention;
FIG. 2 is a partial cross-sectional view of a flexible web for measuring electrode spacing in accordance with the present invention;
FIG. 3 is a top view of the electrode fastening device;
FIG. 4 is a view of a fastener construction;
FIG. 5 is a block diagram of the stationary housing and positioning disk;
FIG. 6 is a front view of the stationary housing and positioning disk;
FIG. 7 is a schematic view of the flexible abdominal ruler placement position for measuring the 4-electrode distance;
figure 8 is a schematic view of the flexible rule placement position for measuring 8 electrode distance.
flexible scale panel 1, portable electrode 2, location disc 3, electrode fastener 4, scale round hole 5, electrode 6, stereoplasm disc 7, cylinder 8, set casing 9, fastening is detained 10, spring 11, pore structure 12.
Detailed Description
The following detailed description and the accompanying drawings describe the present invention in detail, but the present invention is not limited to the following examples.
Example 1
In fig. 1, taking 4 electrodes as an example, a flexible abdominal ruler is covered on the abdominal surface of a pregnant woman, and 0 point of the flexible graduated ruler is placed at the hip convex point and the navel 1/3 on the left side of the pregnant woman. 4 graduated scale round holes with the radius of 25mm are respectively formed in positions (62.5, 262.5), (187.5, 262.5), (62.5, 87.5) and (187.5, 62.5) of the abdominal ruler as circle centers, and 4 movable electrodes carried on the flexible graduated scale are adjusted to proper positions within the range of the graduated scale round holes according to the specific position of the uterus of the pregnant woman, so that the 4 movable electrodes cover the whole uterus.
example 2
Referring to fig. 2, taking 8 electrodes as an example, a flexible abdominal ruler is covered on the abdominal surface of a pregnant woman, and 0 point of the flexible graduated ruler is placed at the hip convex point and the navel 1/3 on the left side of the pregnant woman. 8 graduated scale round holes with the radius of 25mm are respectively formed in the positions (31.25, 218.75), (93.75, 262.5), (156.25, 262.5), (218.75 ), (93.75, 131.25), (156.25, 131.25), (93.75, 43.75) and (156.25, 43.75) of the abdominal ruler as circle centers, and according to the specific position of the uterus of the pregnant woman, 8 movable electrodes carried on the flexible graduated scale are adjusted to proper positions within the range of the graduated scale round holes (5), so that the 8 movable electrodes cover the whole uterus.
referring to fig. 3-8, according to the size of the abdomen and uterus of the pregnant woman, the fixing button (10) of the electrode fastening device (4) is pinched, the movable electrode (2) is moved to a proper position, and the fixing button is released, so that the electrode is fixed at a required position. And (3) recording the position coordinates of the movable electrode (2) by contrasting the positioning pointer (11) on the positioning disc (3), and calculating to obtain the relative distance between every two different electrodes.
Those not described in detail in this specification are well within the knowledge of those skilled in the art.
Claims (7)
1. A flexible abdominal ruler for measuring electrode distance is characterized by comprising a flexible graduated scale panel (1), a movable electrode (2), a positioning disc (3) and an electrode fastening device (4);
The flexible graduated scale panel (1) is provided with at least two graduated scale round holes (5), and the radius of the graduated scale round holes (5) is 3.5-34.5 mm;
The movable electrode (2) comprises an electrode (6), a hard disc (7) and a cylinder (8), the electrode (6) is a common disc electrode and is in a plane circular plate structure, the electrode (6) and the hard disc (7) are the same in diameter and are coaxially and fixedly attached together, and the electrode (6) is positioned at the lowest part of the whole movable electrode (2) and is used for attaching to the abdomen; a cylinder (8) is coaxially fixed at the center of the upper surface of the hard disc (7); the diameters of the electrode (6) and the hard disc (7) are larger than the diameter of the round hole (5) of the graduated scale, and the diameter of the cylinder (8) is smaller than the diameter of the round hole (5) of the graduated scale; the cylinder (8) upwards penetrates through the round hole (5) of the graduated scale, and the electrode (6) and the hard disc (7) are positioned below the panel (1) of the flexible graduated scale;
The positioning disc (3) is a plane circular ring structure which has the same diameter as and is parallel to the hard disc (7);
the electrode fastening device (4) comprises a round tube-shaped fixed shell (9), two fastening buckles (10) and two springs (11); the fixed shell (9) is positioned on the positioning disc (3), and the positioning disc (3) and the fixed shell (9) are coaxial and fixed into a whole; a waist-shaped through hole B is formed in one side wall of the diameter surface A of the fixed shell (9), and a circular blind hole C is formed in the inner side wall opposite to the waist-shaped through hole B; similarly, a waist-shaped through hole E is formed in one side wall of the diameter surface D, and a circular blind hole F is formed in the inner side wall opposite to the waist-shaped through hole E; the round blind hole F and the waist-shaped through hole B are on the same side surface, and the round blind hole C and the waist-shaped through hole E are on the same side surface; the A-diameter surface and the D-diameter surface are spaced; the diameter of a central hole of the positioning disc (3) is not more than that of the fixed shell (9), the diameters of the central hole and the fixed shell are both larger than that of the cylinder (8), and the cylinder (8) upwards sequentially penetrates through the positioning disc (3) and the fixed shell (9); the positioning disc (3) is positioned on the flexible graduated scale panel (1); the whole fastening buckle (10) is in a shape of a flat runway, two ends of the fastening buckle are semicircular, the middle of the fastening buckle is rectangular, the semicircular diameter is equal to the width of the rectangle, a hole structure (12) consisting of a semicircular hole and a rectangular hole is arranged on a flat plate at one end of the fastening buckle (10), the hole structure (12) is formed by connecting the semicircular hole and the rectangular hole, the diameter of the semicircular hole at the connecting part is equal to the width of the rectangular hole, and the semicircular hole is positioned at the end edge relative to the rectangular hole; the end surface of the end of the fastening buckle (10) with the hole structure (12) is of a semicircular structure; the diameter of the semicircular hole in the fastening buckle (10) is not less than that of the cylinder (8); the semicircular end of a fastening buckle hole structure (12) transversely penetrates through the waist-shaped through hole B of the fixed shell, the round blind hole C is fixed with one end of a spring, and the other end of the spring is fixed with the end surface of the semicircular ring of the fastening buckle; similarly, the semicircular ring end of the other fastening buckle hole structure (12) transversely penetrates through the waist-shaped through hole E of the fixed shell, the round blind hole F is fixed with one end of the other spring, and the other end of the spring is fixed with the end surface of the semicircular ring structure of the other fastening buckle; the cylinder (8) sequentially passes through the hole structures (12) of the two fastening buckles (10), and the connected springs are always in a compressed state; the two springs are pressed simultaneously through the two fastening buckles (10), when the two springs are further compressed, the inner walls of the hole structures (12) of the fastening buckles (10) are separated from the cylinder (8), the two fastening buckles (10) are pressed along the radial direction of the cylinder and lifted upwards to move left and right, the positioning disc (3) and the flexible graduated scale panel (1) are reduced in friction when lifted upwards, the cylinder (8) is driven to move left and right by moving left and right to drive the electrode to move left and right, and the movable electrode (2) can move at various angles by adopting the method so as to adjust the distances of the abdominal electrodes of different pregnancies; after the position is determined, the fixed shell is pressed downwards, then the pressure of the two fastening buckles (10) is released, at the moment, the positioning disc and the hard disc clamp the flexible graduated scale panel (1), and the two fastening buckles (10) clamp the cylinder (8), so that the position of the movable electrode (2) is fixed;
The upper surface of flexible scale panel (1) is equipped with square scale, and the upper surface center of location disc is equipped with cross location pointer, and cross location pointer is used for instructing the square scale that movable electrode (2) central point put the correspondence.
2. A flexible abdominal ruler for measuring electrode distance according to claim 1, characterized in that the 0 point of the flexible scale panel (1) is arranged at the lower left corner and marked with a scale in the horizontal and vertical directions connecting the 0 point, the minimum unit being 1mm, along which scale straight lines are marked in the horizontal (X) and vertical (Y) directions, respectively.
3. A flexible web ruler for measuring electrode distance according to claim 1 characterized by that the flexible scale panel (1) is made of silicone or Polyamide (PA).
4. A flexible abdominal ruler for measuring electrode spacing according to claim 1, characterized in that the flexible scale panel (1) is 70-450mm long, 45-350mm wide and no more than 2mm thick.
5. A flexible web ruler for measuring electrode distance according to claim 1 characterized in that the number of movable electrodes (2) does not exceed 64.
6. A flexible abdominal ruler for measuring electrode spacing according to claim 1, characterized in that the positioning disc (3) is made of Polystyrene (PS) and is shaped as a ring with an outer circle radius of 4-35mm and the same radius as the electrodes and an inner circle radius of 1.5-5.5 mm.
7. a flexible abdominal ruler for measuring electrode distance according to claim 1, wherein the electrode distance is calculated by covering the flexible abdominal ruler on the surface of the abdomen of a pregnant woman, pinching the fixing button (10) of the electrode fastening means (4) according to the size of the abdomen of the pregnant woman, moving the movable electrode (2) to a suitable position, releasing the fixing button, and recording the position of the electrode, in use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910870426.5A CN110575167B (en) | 2019-09-16 | 2019-09-16 | Flexible abdominal ruler for measuring electrode distance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910870426.5A CN110575167B (en) | 2019-09-16 | 2019-09-16 | Flexible abdominal ruler for measuring electrode distance |
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| CN110575167B CN110575167B (en) | 2022-05-03 |
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| US20010020167A1 (en) * | 1995-06-07 | 2001-09-06 | Arthrocare Corporation | Electrosurgical systems and methods for removing and modifying tissue |
| CN2698273Y (en) * | 2003-05-29 | 2005-05-11 | 贺海龙 | Vest type electrodes for cardiogram/electrocardio monitoring |
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| CN209003993U (en) * | 2018-08-22 | 2019-06-21 | 复旦大学 | Electrode for Electrophysiological mapping |
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| Publication number | Publication date |
|---|---|
| CN110575167B (en) | 2022-05-03 |
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