CN212347363U - Blood vessel imaging instrument - Google Patents
Blood vessel imaging instrument Download PDFInfo
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- CN212347363U CN212347363U CN202020559404.5U CN202020559404U CN212347363U CN 212347363 U CN212347363 U CN 212347363U CN 202020559404 U CN202020559404 U CN 202020559404U CN 212347363 U CN212347363 U CN 212347363U
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- gear
- connecting rod
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- rod
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- 238000003384 imaging method Methods 0.000 title claims abstract description 26
- 210000004204 blood vessel Anatomy 0.000 title description 19
- 230000002792 vascular Effects 0.000 claims abstract description 8
- 238000002583 angiography Methods 0.000 claims 9
- 238000000034 method Methods 0.000 abstract description 2
- 210000003462 vein Anatomy 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010253 intravenous injection Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003331 infrared imaging Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model relates to the field of medical appliances, in particular to a vascular imaging instrument. Including the pole setting, the gear train, connecting rod three, connecting rod four and base, the gear train includes gear one, gear two, gear three and gear four, the pole setting surface is provided with the teeth of a cogwheel, gear one and pole setting surface interlock, gear one sets gradually on connecting rod one with gear two, gear three and gear four interlock in proper order, gear four is installed on connecting rod two, the cover is equipped with the ring on connecting rod two, ring connecting rod one and ring connecting rod two have connected gradually on the ring, ring connecting rod one and ring connecting rod two are articulated each other, be provided with the camera on the ring connecting rod two, the orientation of camera and projecting apparatus is the same, the snoot faces the camera. The utility model discloses vascular video picture appearance is simple to use, the function is various, uses through the cooperation of gear train and conical gear etc. and the in-process of pulling the push rod from top to bottom makes camera and snoot syntropy rotate, and the camera is facing the snoot all the time moreover.
Description
Technical Field
The utility model relates to the field of medical appliances, in particular to a vascular imaging instrument.
Background
Venipuncture is one of the most basic and widely clinically applied nursing technical operations in the medical industry, and intravenous injection also becomes an important administration route for clinical treatment and patient rescue. However, since some special people have blood vessels that are not easily found, for example, children, fat people, old people, people who have been injected intravenously for a long time, people with dark skin color, etc. are rarely successfully injected at a time, the pain of patients and the psychological stress of nurses are increased, and medical disputes are easily caused. Therefore, the blood vessel imaging instrument is required to be used, the vein which is hidden under the skin and cannot be observed by naked eyes can be found through the infrared imaging technology, and the vein is processed through the digital chip and then input in real time, so that the vein can be imaged on the skin of a patient in real time, and a nurse can directly carry out intravenous injection. The existing blood vessel imaging instrument has the defects of complex use and operation, unadjustable visual angle and poor imaging effect.
Accordingly, there is a need for improvements in the art.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a vascular imaging instrument with simple use and various functions.
In order to solve the technical problem, the utility model provides a blood vessel imaging instrument, which comprises a vertical rod, a gear set, a third connecting rod, a fourth connecting rod and a base;
the gear set comprises a first gear, a second gear, a third gear and a fourth gear;
gear teeth are arranged on the outer surface of the vertical rod; the first gear is meshed with the outer surface of the vertical rod;
the first gear and the second gear are sequentially arranged on the first connecting rod; the second gear, the third gear and the fourth gear are meshed in sequence;
the gear four is arranged on the connecting rod two; the second connecting rod is sleeved with a circular ring, a first circular connecting rod and a second circular connecting rod are sequentially connected to the circular ring, the first circular connecting rod and the second circular connecting rod are hinged to each other, and a camera is arranged on the second circular connecting rod;
a third annular connecting rod is arranged on the second annular connecting rod, and a projector is arranged on the third annular connecting rod; the directions of the camera and the projector are the same;
the connecting rod III is vertically arranged, and a conical gear I is arranged on the connecting rod III; a third conical gear is arranged on the first connecting rod; the outer surfaces of the third connecting rod and the first connecting rod are provided with matched external threads which are meshed with each other;
the top of the base is provided with an arc-shaped placing groove, and the right middle of the bottom of the placing groove is provided with an irradiation groove; a light-gathering cover is arranged in the irradiation groove, and a light source is arranged in the light-gathering cover;
the connecting rod IV is horizontally arranged, a bevel gear IV is arranged on the connecting rod IV, and the bevel gear I is meshed with the bevel gear IV; the fourth connecting rod penetrates through the base and then extends into the irradiation groove to be fixedly connected with the light-gathering cover;
the light-gathering shade is opposite to the camera.
As to the improvement of the blood vessel imaging instrument of the utility model:
and a third ring connecting rod is arranged on the second ring connecting rod, and a projector is arranged on the third ring connecting rod.
As to the further improvement of the blood vessel imaging instrument of the utility model:
the orientation of the camera is the same as that of the projector.
As to the further improvement of the blood vessel imaging instrument of the utility model:
the camera comprises a lens, a narrow-band filter and an image sensor chip which are arranged in sequence.
As to the further improvement of the blood vessel imaging instrument of the utility model:
the center wavelength/half-wave width of the narrow-band filter is 850nm/79nm, and the light source is a high-power 850nm LED light source.
As to the further improvement of the blood vessel imaging instrument of the utility model:
the first gear, the second gear, the third gear and the fourth gear are all arranged on a connecting plate, and a push rod capable of moving up and down is fixedly arranged on the connecting plate; the first gear, the second gear, the third gear, the fourth gear and the connecting plate are all located in the shell.
As to the further improvement of the blood vessel imaging instrument of the utility model:
the opening of the irradiation groove is large and the bottom is small.
As to the further improvement of the blood vessel imaging instrument of the utility model:
the snoot is arc, and snoot central point puts and is provided with the light source.
As to the further improvement of the blood vessel imaging instrument of the utility model:
the size of the first gear is larger than that of the second gear;
the size of the gear four is larger than that of the gear two.
As to the further improvement of the blood vessel imaging instrument of the utility model:
the diameter ratio of the first gear to the second gear is 2: 1;
the diameter ratio of the gear four to the gear two is 3: 1.
The utility model discloses vascular video recorder's technical advantage does:
the utility model discloses vascular video picture appearance is simple to use, the function is various, uses through the cooperation of gear train and conical gear etc. and the in-process of pulling the push rod from top to bottom makes camera and snoot syntropy rotate, and the camera is facing the snoot all the time moreover, and the light that the light source of snoot launched is facing the camera all the time, and the operation is complicated, and visual angle and projection position etc. can adjust at will, satisfy the demand to different crowds vascular video pictures.
The center wavelength/half-wave width of the narrow-band filter is 850nm/79nm, the light source is a high-power 850nm LED light source, and when the high-power 850nm LED light source is used for irradiation, thin superficial veins of obese testers and children of 5 years old can be clearly observed without image processing. When a 850nm LED light source transmits light for imaging, the outline of the shallow main vein can be distinguished under the condition of low light source power. The Quantum Efficiency (QE) of the image sensor chip at 850nm was 17%. Compare in the specification of other narrowband optical filter and light sources, the utility model discloses a treatment effect is better, and vein development is more clear, can observe more tiny vein.
Drawings
The following describes the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic view of the whole structure of the blood vessel imaging instrument of the present invention;
fig. 2 is a schematic view of the internal structure of the blood vessel imaging instrument of the present invention;
FIG. 3 is a schematic view of the base 14 of FIG. 1;
FIG. 4 is a schematic view of the internal structure of the base 14 of FIG. 1;
fig. 5 is a schematic structural diagram of the camera head 6 in fig. 2.
Detailed Description
The invention will be further described with reference to specific examples, but the scope of the invention is not limited thereto.
The gear set includes gear one 21, gear two 22, gear three 3 and gear four 41.
The first gear 21, the second gear 22, the third gear 3 and the fourth gear 41 are all mounted on the connecting plate 11, and the push rod 12 is fixedly arranged on the connecting plate 11 and can vertically move up and down the push rod 12.
The vertical rod 1 is vertically arranged, a plurality of gear teeth are arranged on the outer surface of the vertical rod 1 in the vertical direction, the vertical rod 1 is meshed with the first gear 21, and the first gear 21 can roll up and down along the outer surface of the vertical rod 1. By pushing the push rod 12 up and down, the first gear wheel 21 can be made to roll up and down along the outer surface of the upright 1.
The first gear 21 and the second gear 22 are sequentially mounted on the first connecting rod 23, and the second gear 22, the third gear 3 and the fourth gear 41 are sequentially meshed. When the first gear 21 rotates, the second gear 22 is driven to rotate in the same direction through the first connecting rod 23, and the second gear 2 drives the fourth gear 41 to rotate together through the third gear 3.
The first gear 21, the second gear 22, the third gear 3, the fourth gear 41 and the connecting plate 11 are all located in the shell 13, the push rod 12 penetrates through the shell 13, and a movable groove for the push rod 12 to move up and down is formed in the shell 13.
The fourth gear 41 is arranged on the second connecting rod 42; a circular ring 51 is sleeved on the second connecting rod 42, and the circular ring 51 can rotate on the second connecting rod 42; the circular ring 51 is sequentially connected with a first circular ring connecting rod 52 and a second circular ring connecting rod 53, the first circular ring connecting rod 52 is hinged with the second circular ring connecting rod 53, and the second circular ring connecting rod 53 is provided with a camera 6; the second annular connecting rod 53 is also provided with a third annular connecting rod 54, the third annular connecting rod 54 is provided with the projector 7, and the directions of the camera 6 and the projector 7 are the same. When the fourth gear 41 rotates, the second connecting rod 42 and the circular ring 51 are driven to rotate together, and then the first circular connecting rod 52 and the second circular connecting rod 53 drive the camera 6 to rotate, so that the orientation of the camera 6 is changed.
The first connecting rod 23 is horizontally arranged, and a third bevel gear 24 is further sleeved on the first connecting rod 23.
Three 8 vertical settings of connecting rod, three 8 surfaces of connecting rod are provided with the external screw thread, and the partial cover is equipped with bevel gear 81 under three 8 connecting rods. The outer surface of the first connecting rod 23 is provided with an external thread, and the third connecting rod 8 is matched with the external thread of the first connecting rod 23.
The top of the base 14 is provided with an arc-shaped placement groove 141, the placement groove 141 is used for placing the limb of the patient needing the blood vessel visualization, and the arc-shaped placement groove 141 is arranged to be beneficial to fixation. The irradiation groove 142 is provided in the middle of the bottom of the placement groove 141, and the irradiation groove 142 has a shape with a large opening and a small bottom, and contributes to light collection. The snoot 10 is placed in the irradiation groove 142, the snoot 10 is arc-shaped, the light source 101 is arranged at the center of the snoot 10, and the snoot 10 can collect light rays emitted by the light source 101 to better irradiate the part of the patient to be irradiated.
The fourth connecting rod 9 is horizontally arranged, a fourth bevel gear 91 is arranged at one end of the fourth connecting rod 9, and the first bevel gear 81 is meshed with the fourth bevel gear 91 of the fourth connecting rod 9. The fourth connecting rod 9 passes through the base 14 and then extends into the irradiation groove 142 to be fixedly connected with the light-gathering cover 10. When the first connecting rod 23 rotates, the third connecting rod 8 and the first bevel gear 81 are driven to rotate, and the first bevel gear 81 drives the light-gathering cover 10 to rotate through the fourth connecting rod 9.
The sizes of the first gear 21, the second gear 22, the third gear 3 and the fourth gear 41 and the initial orientations of the snoot 10 and the camera 6 are adjusted so that the camera 6 always faces the snoot 10.
For example, when the first gear 21 rolls downward, the first gear 21 rotates clockwise to drive the second gear 22 to rotate clockwise, the size of the first gear 21 is larger than that of the second gear 22, and the diameter ratio of the first gear 21 to the second gear 22 is 2:1, so that the circumference of the rotation of the second gear 22 is smaller than the length of the rolling path of the first gear 21. Next, the gear two 22 drives the gear three 3 to rotate counterclockwise, the gear three 3 drives the gear four 41 to rotate clockwise, the size of the gear four 41 is larger than that of the gear two 22, and the diameter ratio of the gear four 41 to the gear two 22 is 3:1 in this embodiment, so that the rotation angle of the gear four 41 is smaller than that of the gear two 22. Then the gear wheel four 41 drives the camera 6 to rotate clockwise through the connecting rod two 42, the circular ring 51, the circular ring connecting rod one 52 and the circular ring connecting rod two 53.
The first gear 21 rotates clockwise to drive the first connecting rod 23 to rotate clockwise, the third connecting rod 8 drives the first bevel gear 81 to rotate counterclockwise, and the first bevel gear 81 drives the fourth bevel gear 91 to rotate clockwise, so that the fourth connecting rod 9 drives the snoot 10 to rotate clockwise. So that the rotation angle of the snoot 10 is smaller than the rotation angle of the first connecting rod 23. The rotation angle of the snoot 10 is the same as the rotation angle of the camera 6 so that the camera 6 always faces the snoot 10.
The camera 6 comprises a lens 61, a narrow-band filter 62 and an image sensor chip 63 which are arranged in sequence; the lens 61 is a 6mm focal length lens. The narrowband filter 62 can only be irradiated by the light source 101, and the other wavelength bands are filtered by the narrowband filter 62. The narrow-band filter 62 is opposite to the lens 61, light entering the lens 61 is filtered by the narrow-band filter 62 and then collected by the image sensor chip 63, the image sensor chip 63 is connected with the existing image processor, and the image sensor chip 63 sends the collected image to the image processor; the graphics processor is connected with the projector 7, and the graphics processor delivers the processed image to the limb of the patient through the projector 7.
The center wavelength/half-wave width of the narrow-band filter 62 is 850nm/79nm, the light source 101 is a high-power 850nm LED light source, and when the high-power 850nm LED light source is used for irradiation, thin superficial veins of obese testers and children of 5 years old can be clearly observed without image processing. When a 850nm LED light source transmits light for imaging, the outline of the shallow main vein can be distinguished under the condition of low light source power. The Quantum Efficiency (QE) at 850nm of the image sensor chip 63 was 17%.
Comparative example 1: the light source 101 is changed to 660nm LED light source, the central wavelength/half wave width of the narrow-band filter 62 is changed to 660nm/61.5nm, and the rest is equal to that of the embodiment 1;
when the indoor light is bright and the LED irradiation distance is short, overexposure is easy to occur, and observation is affected; in a dark room environment with a longer irradiation distance, the superficial major vein is discernible. Fine veins are not observed with 660nm reflectance imaging, mainly due to: although the skin has a high trans-reflectance at 660nm, the reflected light intensity ratio of the upper surface still exceeds 50%, and light absorption by the thinner veins is annihilated in noise. Therefore, 660nm is not suitable as the operating wavelength for reflected light imaging.
Comparative example 2: the light source 101 is changed into a 940nm LED light source, the central wavelength/half wave width of the narrow-band filter 62 is changed into 660nm/42.5nm, and the rest is equal to that of the embodiment 1;
the 940nm transmitted light forms a dark image which is obviously darker than 850nm, and the vein contour is blurred. The quantum efficiency drops to about 6% at 940 nm. In addition, the half-wave width of the 940nm filter is relatively narrow, water in muscle tissue has a higher absorption coefficient for 940nm, and the like, which also results in a darker image of transmitted light at 940 nm.
Finally, it is also noted that the above-mentioned list is only a few specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.
Claims (10)
1. Vascular imaging appearance, its characterized in that: comprises a vertical rod (1), a gear set, a third connecting rod (8), a fourth connecting rod (9) and a base (14);
the gear set comprises a first gear (21), a second gear (22), a third gear (3) and a fourth gear (41);
gear teeth are arranged on the outer surface of the upright rod (1); the first gear (21) is meshed with the outer surface of the vertical rod (1);
the first gear (21) and the second gear (22) are sequentially arranged on the first connecting rod (23); the second gear (22), the third gear (3) and the fourth gear (41) are meshed in sequence;
the fourth gear (41) is arranged on the second connecting rod (42); the second connecting rod (42) is sleeved with a circular ring (51), the circular ring (51) is sequentially connected with a first circular connecting rod (52) and a second circular connecting rod (53), the first circular connecting rod (52) is hinged with the second circular connecting rod (53), and the second circular connecting rod (53) is provided with a camera (6);
the third connecting rod (8) is vertically arranged, and a first conical gear (81) is arranged on the third connecting rod (8); a third bevel gear (24) is arranged on the first connecting rod (23); the outer surfaces of the third connecting rod (8) and the first connecting rod (23) are provided with matched external threads which are meshed with each other;
an arc-shaped placing groove (141) is formed in the top of the base (14), and an irradiation groove (142) is formed in the middle of the bottom of the placing groove (141); a light-gathering cover (10) is arranged in the irradiation groove (142), and a light source (101) is arranged in the light-gathering cover (10);
the connecting rod IV (9) is horizontally arranged, a bevel gear IV (91) is arranged on the connecting rod IV (9), and the bevel gear I (81) is meshed with the bevel gear IV (91); the fourth connecting rod (9) penetrates through the base (14) and then extends into the irradiation groove (142) to be fixedly connected with the light-gathering cover (10);
the light-gathering cover (10) is right opposite to the camera (6).
2. The angiography instrument of claim 1, wherein:
and a third annular connecting rod (54) is arranged on the second annular connecting rod (53), and a projector (7) is arranged on the third annular connecting rod (54).
3. The angiography instrument according to claim 2, wherein:
the camera (6) and the projector (7) are in the same direction.
4. The angiography instrument of claim 1, wherein:
the camera (6) comprises a lens (61), a narrow-band filter (62) and an image sensor chip (63) which are arranged in sequence.
5. The angiography instrument according to claim 4, wherein:
the center wavelength/half-wave width of the narrow-band filter (62) is 850nm/79nm, and the light source (101) is a high-power 850nm LED light source.
6. The angiography instrument of claim 1, wherein:
the first gear (21), the second gear (22), the third gear (3) and the fourth gear (41) are all arranged on a connecting plate (11), and a push rod (12) capable of moving up and down is fixedly arranged on the connecting plate (11); the first gear (21), the second gear (22), the third gear (3), the fourth gear (41) and the connecting plate (11) are all located in the shell (13).
7. The angiography instrument of claim 1, wherein:
the opening of the irradiation groove (142) is large and the bottom is small.
8. The angiography instrument of claim 1, wherein:
the light-gathering cover (10) is arc-shaped, and a light source (101) is arranged at the center of the light-gathering cover (10).
9. The angiography instrument of claim 1, wherein:
the size of the first gear (21) is larger than that of the second gear (22);
the size of the gear wheel four (41) is larger than that of the gear wheel two (22).
10. The angiography instrument of claim 9, wherein:
the diameter ratio of the first gear (21) to the second gear (22) is 2: 1;
the diameter ratio of the gear four (41) to the gear two (22) is 3: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020559404.5U CN212347363U (en) | 2020-04-15 | 2020-04-15 | Blood vessel imaging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020559404.5U CN212347363U (en) | 2020-04-15 | 2020-04-15 | Blood vessel imaging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212347363U true CN212347363U (en) | 2021-01-15 |
Family
ID=74140442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020559404.5U Active CN212347363U (en) | 2020-04-15 | 2020-04-15 | Blood vessel imaging instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212347363U (en) |
-
2020
- 2020-04-15 CN CN202020559404.5U patent/CN212347363U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240123 Address after: Hechi Third People's Hospital, 229 Nanxin East Road, Jinchengjiang District, Hechi, Guangxi 547000 Patentee after: Lan Linuan Country or region after: China Patentee after: Huang Langen Address before: Room 1212, Yifu science and technology building, School of modern science and technology, China University of metrology, Xueyuan street, Xiasha economic and Technological Development Zone, Hangzhou City, Zhejiang Province, 310018 Patentee before: HANGZHOU HANGRUI TECHNOLOGY Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right |