CN110487222B - Measuring instrument for measuring amount of blood exposed in vitro - Google Patents
Measuring instrument for measuring amount of blood exposed in vitro Download PDFInfo
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- CN110487222B CN110487222B CN201910932047.4A CN201910932047A CN110487222B CN 110487222 B CN110487222 B CN 110487222B CN 201910932047 A CN201910932047 A CN 201910932047A CN 110487222 B CN110487222 B CN 110487222B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/28—Measuring arrangements characterised by the use of optical techniques for measuring areas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B15/00—Measuring arrangements characterised by the use of electromagnetic waves or particle radiation, e.g. by the use of microwaves, X-rays, gamma rays or electrons
Abstract
A measuring instrument for measuring the amount of blood exposed outside the body comprises a base, a supporting rod is rotatably arranged on the base, a cross rod perpendicular to the supporting rod is fixed at the top of the supporting rod, the cross rod and the supporting rod are matched to form a T-shaped rod, a blood area measuring device is fixed at one end of the cross rod, a blood thickness measuring device is arranged at the other end of the cross rod, a control box is fixed at the top of the cross rod, an A/D converter and a central processing unit are arranged in the control box, detected signals are processed by the blood area measuring device and the blood thickness measuring device through the A/D converter and then transmitted to the central processing unit, and after the signals are processed by the central processing unit, results are transmitted to a handheld instrument matched with the data transmission module through the data transmission module fixed in the control box.
Description
Technical Field
The invention belongs to the technical field of medical detection instruments, and particularly relates to a device for measuring blood volume.
Background
The measurement object is blood exposed in vitro in an emergency. Certain diseases can cause a patient to vomit, stool or hemoptysis. The blood volume in human body is about 7% -8% of body weight, when the blood loss of patient is less than 20% of total blood volume, it is in the early stage of body weight, if it can be accurately judged and the blood volume can be timely supplemented, the shock can be quickly corrected. Otherwise, the state of illness continues to develop, and the patient can enter a shock-settling period soon and needs to be rescued immediately, and if the rescue is not timely, the life can be threatened directly. The existing medical means can only estimate the amount of bleeding by the experience of medical staff, but the estimation has certain deviation, and if the deviation is serious, the state of illness is delayed, even the life is threatened.
Disclosure of Invention
The invention provides a device for measuring blood volume, which has simple design structure and convenient operation; can be quick expose the blood to patient and detect, be favorable to reaching the purpose of accurate measurement blood volume, can have corresponding treatment scheme according to this volume data, in time alleviate the deterioration of state of an illness, be favorable to the recovery of patient's health.
In order to solve the technical problems, the invention adopts the technical scheme that:
a measuring instrument for measuring the amount of blood exposed outside the body comprises a base, a supporting rod is rotatably arranged on the base, a cross rod perpendicular to the supporting rod is fixed at the top of the supporting rod, the cross rod and the supporting rod are matched to form a T-shaped rod, a blood area measuring device is fixed at one end of the cross rod, a blood thickness measuring device is arranged at the other end of the cross rod, a driven gear is fixed at the bottom of the supporting rod, a driving gear is meshed on the driven gear, a driving motor is connected on the driving gear, the driving motor is fixed in the base and drives the supporting rod to rotate through the driving motor so as to switch the blood area measuring device and the blood thickness measuring device, a control box is fixed at the top of the cross rod, an A/D converter and a central processing unit are arranged in the control box, detected signals are processed by the A/D converter and then are transmitted, after the central processing unit processes the signals, the results are transmitted to a handheld instrument matched with the data transmission module through the data transmission module fixed in the control box;
the blood area measuring device comprises a first fixed rod vertically welded on a cross rod, a first measuring frame is vertically welded on one end, far away from the cross rod, of the first fixed rod, a vertical bisector of the first measuring frame coincides with the central line of the first fixed rod, a picture collecting device is fixed at the central position of the bottom of the first measuring frame, and a pair of L-shaped spaces are further fixed at the bottom of the first measuring frame0The spot color of the spot spotlight is different from the color of blood, the image acquisition device transmits the acquired blood full-image information with the spot illuminated by the spot spotlight to the central processing unit after being processed by the A/D converter, the central processing unit matches the blood full-image with a standard grid image, and the blood image area S is calculated according to a grid area statistical method1And the distance L between the two spot spots of the spot light of the round spot spotlight in the whole blood picture1According to the formula S0=S1*L0/ L1Calculating the area S of the actual blood0The central processing unit stores the calculated result in the central processing unit;
the blood thickness measuring device comprises a second fixing rod vertically welded on the cross rod, a second measuring frame is vertically welded on one end, far away from the cross rod, of the second fixing rod, a vertical bisector of the second measuring frame coincides with the center line of the second fixing rod, an ultrasonic thickness gauge is slidably mounted at the bottom of the second measuring frame, the projection of the second measuring frame on blood coincides with one axis of the blood, a driving device for driving the ultrasonic thickness gauge to slide on the second measuring frame is mounted at the top of the second measuring frame, the ultrasonic thickness gauge transmits detected thickness information D1-DN of N different positions to the A/D converter, the information is transmitted to the central processor after the A/D converter processes the information, and the central processor calculates the thickness of the blood according to a formula D = (D1 + D2+ … … + DN)/N;
the central processing unit is according to the formula V = S0*D= （S1*L0/ L1) And calculating the blood volume by the { (D1 + D2+ … … + DN)/N } and transmitting the blood volume to the handheld meter through the data transmission module.
The spot diameter of the round spot spotlight is 1-5 mm.
The driving device adopts a stepping motor.
N is an integer, and N is more than or equal to 10.
And a storage battery for providing power for the measuring instrument is arranged on the base.
The spot color of the round spot spotlight is blue.
The projection of the second measuring frame on the blood coincides with the longest axis of the blood.
The invention has the beneficial effects that: the invention replaces an estimation mode with instrument measurement, improves the accuracy, calculates the change proportion of the photographed image through two spot spotlights so as to reduce the error of area measurement, and simultaneously reduces the thickness error according to a method of measuring a plurality of thicknesses by a super-magic wave thickness gauge to obtain a more accurate volume so as to ensure that medical personnel can carry out emergency treatment on a patient in time.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Graphic notation: 1. the base, 2, circle spot spotlight, 3, first measuring rack, 4, picture collection system, 5, first dead lever, 6, central processing unit, 7, control box, 8, data transmission module, 9, horizontal pole, 10, second dead lever, 11, drive arrangement, 12, second measuring rack, 13, ultrasonic thickness gauge, 14, bracing piece, 15, driving gear, 16, driving motor, 17, driven gear, 18, handheld instrument.
Detailed Description
As shown in fig. 1, the specific embodiment is as follows:
the utility model provides a be used for measuring external blood volume measuring apparatu that exposes, includes base 1, and base 1 is last to rotate and to install bracing piece 14, and bracing piece 14 top is fixed with bracing piece 14 vertically horizontal pole 9, and horizontal pole 9 and bracing piece 14 cooperation constitute T shape pole, and wherein one end of horizontal pole 9 is fixed with blood area measuring device, is provided with blood thickness measuring device on the other end of horizontal pole 9, 14 bottoms of bracing piece be fixed with driven gear 17, driven gear 17 goes up the meshing has driving gear 15, is connected with driving motor 16 on the driving gear 15, and driving motor 16 fixes inside base 1, drives bracing piece 14 through driving motor 16 and rotates so that blood area measuring device and blood thickness measuring device switch over, is fixed with control box 7 on the horizontal pole 9 top, is provided with AD converter and central processing unit 6 in the control box 7, and blood area measuring device and blood thickness measuring device are all with the signal that detects through AD conversion The signal is processed by the processor and then transmitted to the central processing unit 6, and after the signal is processed by the central processing unit 6, the result is transmitted to the handheld instrument 18 matched with the data transmission module 8 through the data transmission module 8 fixed in the control box.
The blood area measuring device comprises a first fixing rod 5 vertically welded on a cross rod 9, a first measuring frame 3 is vertically welded on one end, far away from the cross rod 9, of the first fixing rod 5, a perpendicular bisector of the first measuring frame 3 coincides with the central line of the first fixing rod 5, a picture collecting device 4 is fixed at the central position of the bottom of the first measuring frame 3, the picture collecting device 4 adopts a high-definition digital camera, and a pair of intervals L is further fixed at the bottom of the first measuring frame0The spot color of the spot spotlight 2 is blue, the diameter of the spot is 3mm, the picture collecting device 4 transmits the collected blood full-image information with the spot illuminated by the spot spotlight to the central processing unit 6 after being processed by the A/D converter, and the central processing unit 6 transmits the blood full-image and the standard gridMatching the images, and calculating the area S of the blood image according to a grid area statistical method1And the distance L between the two spot spots of the spot light of the round spot spotlight in the whole blood picture1According to the formula S0=S1*L0/ L1Calculating the area S of the actual blood0And the central processing unit 6 stores the calculated result in the central processing unit 6.
The blood thickness measuring device comprises a second fixing rod 10 vertically welded on a cross rod 9, a second measuring frame 12 is vertically welded on one end, far away from the cross rod 9, of the second fixing rod 10, a vertical bisector of the second measuring frame 12 coincides with a central line of the second fixing rod 10, an ultrasonic thickness gauge 13 is slidably mounted at the bottom of the second measuring frame 12, the projection of the second measuring frame 12 on blood coincides with the longest axis of the blood so as to obtain the longest detection distance, a driving device 11 for driving the ultrasonic thickness gauge 13 to slide on the second measuring frame 12 is mounted at the top of the second measuring frame 12, the driving device 11 is a stepping motor, the ultrasonic thickness gauge 13 transmits detected thickness information D1-DN at N different positions to an A/D converter, the information is transmitted to a central processor 6 after the A/D converter is processed, wherein N is 25, the central processor 6 calculates the thickness of blood according to the formula D = (D1 + D2+ … … + DN)/N.
The central processor 6 follows the formula V = S0*D= （S1*L0/ L1) The amount of blood is calculated by { (D1 + D2+ … … + DN)/N } and is transmitted to the hand-held meter 18 through the data transmission module.
The base 1 is provided with a storage battery for providing power for the measuring instrument, and the storage battery is selected by the conventional technology of the technical personnel in the field and does not belong to the key point of the application, so the storage battery is not described in detail.
In specific use, remove this device to the blood next door earlier, because blood probably is the infectious source, collect inconvenience moreover, consequently medical personnel can directly adopt this device, control driving motor rotates for blood area measurement device is located the blood top, adjusts to directly over the effect best, but according to the distance L of spot spotlight light spot in the image1And actually condensing lightDistance L of light spot0The proportion that can the accurate calculation photo changes, can reduce the error, calculates the area, then controls driving motor and rotates for blood thickness measurement device is located the blood top, and the adjustment makes the projection of second measuring rack on blood coincide with the longest axis of blood, controls step motor and constantly moves the thickness that measures different positions above, then gets the average and be blood thickness, calculates at last and obtains the volume.
The technical solutions and embodiments of the present invention are not limited, and the same solutions or effects as those of the technical solutions and embodiments of the present invention are within the scope of the present invention.
Claims (7)
1. The utility model provides a measuring apparatu for measuring external blood volume that exposes, includes the base, rotates on the base and installs the bracing piece, the bracing piece top be fixed with bracing piece vertically horizontal pole, horizontal pole and bracing piece cooperation constitute T shape pole, the wherein one end of horizontal pole is fixed with blood area measuring device, is provided with blood thickness measuring device, its characterized in that on the other end of horizontal pole: the blood area measuring device and the blood thickness measuring device both transmit detected signals to the central processing unit after being processed by the A/D converter, and the central processing unit transmits the results to a handheld instrument matched with the data transmission module through the data transmission module fixed in the control box after processing the signals;
the blood area measuring device comprises a first fixed rod vertically welded on a cross rod, a first measuring frame is vertically welded on one end, far away from the cross rod, of the first fixed rod, a vertical bisector of the first measuring frame coincides with the central line of the first fixed rod, a picture collecting device is fixed at the central position of the bottom of the first measuring frame, and the first measuring frame is used for measuring blood areaA pair of L-shaped spacing parts is fixed on the bottom of the frame0The pair of spot lamps is symmetrically arranged at two ends of the picture acquisition device, the color of a light spot of each spot lamp is different from the color of blood, the picture acquisition device transmits the acquired blood full-image information with the irradiation light spot of the spot lamps to the central processing unit after the blood full-image information is processed by the A/D converter, the central processing unit matches the blood full-image with a standard grid image, and the blood image area S is calculated according to a grid area statistical method1And the distance L between the two spot spots of the spot light of the round spot spotlight in the whole blood picture1According to the formula S0=S1*L0/ L1Calculating the area S of the actual blood0The central processing unit stores the calculated result in the central processing unit;
the blood thickness measuring device comprises a second fixing rod vertically welded on the cross rod, a second measuring frame is vertically welded on one end, far away from the cross rod, of the second fixing rod, a vertical bisector of the second measuring frame coincides with the center line of the second fixing rod, an ultrasonic thickness gauge is slidably mounted at the bottom of the second measuring frame, the projection of the second measuring frame on blood coincides with one axis of the blood, a driving device for driving the ultrasonic thickness gauge to slide on the second measuring frame is mounted at the top of the second measuring frame, the ultrasonic thickness gauge transmits detected thickness information D1-DN of N different positions to the A/D converter, the information is transmitted to the central processor after the A/D converter processes the information, and the central processor calculates the thickness of the blood according to a formula D = (D1 + D2+ … … + DN)/N;
the central processing unit is according to the formula V = S0*D= （S1*L0/ L1) The blood volume is calculated by { (D1 + D2+ … … + DN)/N } and is transmitted to the handheld meter through the data transmission module.
2. A meter for measuring the amount of blood exposed extracorporeally according to claim 1, wherein: the spot diameter of the round spot spotlight is 1-5 mm.
3. A meter for measuring the amount of blood exposed extracorporeally according to claim 1, wherein: the driving device adopts a stepping motor.
4. A meter for measuring the amount of blood exposed extracorporeally according to claim 1, wherein: n is an integer, and N is more than or equal to 10.
5. A meter for measuring the amount of blood exposed extracorporeally according to claim 1, wherein: and a storage battery for providing power for the measuring instrument is arranged on the base.
6. A meter for measuring the amount of blood exposed extracorporeally according to claim 1, wherein: the spot color of the round spot spotlight is blue.
7. A meter for measuring the amount of blood exposed extracorporeally according to claim 1, wherein: the projection of the second measuring frame on the blood coincides with the longest axis of the blood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910932047.4A CN110487222B (en) | 2019-09-29 | 2019-09-29 | Measuring instrument for measuring amount of blood exposed in vitro |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910932047.4A CN110487222B (en) | 2019-09-29 | 2019-09-29 | Measuring instrument for measuring amount of blood exposed in vitro |
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| CN110487222A CN110487222A (en) | 2019-11-22 |
| CN110487222B true CN110487222B (en) | 2020-12-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0545141A (en) * | 1991-08-12 | 1993-02-23 | Asahi Chem Ind Co Ltd | Method for measuring section area of wall thickness of hollow structure |
| CN2353314Y (en) * | 1997-08-11 | 1999-12-15 | 江门田川电子设备有限公司 | Device for measuring area and weight of raw skin and wet skin |
| JP4548912B2 (en) * | 2000-08-11 | 2010-09-22 | パナソニック株式会社 | Transparent liquid inspection apparatus, transparent liquid application apparatus, transparent liquid inspection method, and transparent liquid application method |
| CN107578408B (en) * | 2017-09-14 | 2018-08-17 | 郑州轻工业学院 | A kind of simulated measurement apparatus and method of milk cattle cultivating Ground urine area |
| CN108535174B (en) * | 2018-04-08 | 2020-11-03 | 浙江师范大学 | Chemical corrosion-based optical glass subsurface damage depth measuring method |
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