Blood vessel imaging instrument

Abstract

The utility model discloses a blood vessel imaging instrument, which relates to the technical field of blood vessel imaging, and is characterized in that an imaging position correction mechanism is arranged above a support of a support frame along the support direction of a support seat, an imaging tool is arranged on a lifting platform of the imaging position correction mechanism, and two groups of transmission shafts are symmetrically arranged in a support of a tool frame; a plurality of sets of fixing shaft sleeves are arranged on each set of transmission shaft in the shaft rod direction of the transmission shaft, and a near-infrared lamp opposite to the supporting base is installed in each set of fixing shaft sleeve. According to the design, the supporting seat is used as a patient limb puncture bearing seat, then the imaging tool is kept at a proper distance from a patient and is pushed to translate by utilizing the lifting, translation and propelling displacement of the imaging correction mechanism, and the limbs of the patient are scanned and imaged; the light intensity of the near-infrared lamp is regulated and controlled, so that a blood vessel trend chart projected by the blood vessel of a patient can be reflected more clearly.

Description

Technical Field

[0001] This utility model relates to the field of vascular imaging, and in particular to a vascular imaging instrument. Background Technology

[0002] As a medical device that assists medical staff in puncturing patients' veins, the vascular imaging instrument utilizes the characteristic that hemoglobin in the blood absorbs near-infrared light more strongly than other tissues. By projecting near-infrared light of a specific wavelength onto the skin surface, photosensitive components collect infrared images of the skin and process them to obtain a vascular distribution contour map. The image is then projected onto the skin surface to display the thickness, direction, distribution, and contour of the blood vessels, making it easier for medical staff to locate the blood vessels for puncture.

[0003] With the increasing demand for medical equipment, different types of imaging devices are being widely produced and used. For example, a vascular imaging device disclosed on the China Patent Network (publication announcement number CN215383972U) uses a trolley as a carrier and has a movable probe support arm on the trolley. The orientation of the near-infrared light probe can be flexibly adjusted through the movable connection of the probe support arm to better perform imaging work.

[0004] However, the aforementioned disclosed patents and existing vascular imaging devices in the market still have some shortcomings: Existing methods that use driving components to move near-infrared light probes in multiple directions for flexible scanning and imaging, while offering relatively flexible performance, typically emit a limited range of near-infrared light for patient scanning, resulting in poor adaptability to different patients. This is especially true for obese patients, where the near-infrared light reaching the blood vessels is more dispersed when projected onto the skin, leading to unclear images and increasing the difficulty of punctures for medical personnel. Therefore, those skilled in the art have provided a vascular imaging device to address the problems mentioned in the background section. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a vascular imaging device that solves the problem mentioned in the background section where the near-infrared light emitted by the near-infrared light probe is relatively dispersed, resulting in unclear images projected by the vascular imaging device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vascular imaging device, comprising a support frame and a support base mounted on the support frame; an imaging alignment mechanism is provided above the support frame along the support direction of the support base, and an imaging fixture is mounted on the lifting platform of the imaging alignment mechanism; the imaging fixture includes a fixture frame, and two sets of drive shafts are symmetrically arranged inside the fixture frame, and multiple sets of fixed bushings are arranged along the shaft direction of each set of drive shafts, and a near-infrared lamp opposite to the support base is installed inside each set of fixed bushings; an infrared camera opposite to the support base is provided on one side of the base frame of the fixture frame, and a projector opposite to the support base is provided on the other side of the base frame of the fixture frame.

[0007] As a further technical solution of this utility model: one end of each of the two sets of transmission shafts is provided with meshing gears.

[0008] As a further technical solution of this utility model: a brake motor for driving one of the transmission shafts is installed on one side of the bracket of the tooling frame.

[0009] As a further technical solution of this utility model: the imaging alignment mechanism includes a horizontal brake frame, which is horizontally installed on both sides of the support base. A horizontal lead screw and a horizontal guide rail are arranged sequentially from top to bottom on both sides of the support of the horizontal brake frame. A horizontal slide table that guides the horizontal guide rail is arranged on the outer side of the shaft of the horizontal lead screw. A lifting brake frame is installed between the two sets of horizontal slide tables. A lifting lead screw and a lifting guide rail are arranged sequentially from the inside to the outside on both sides of the support of the lifting brake frame. A lifting slide table that guides the lifting guide rail is arranged on the outer side of the shaft of the lifting lead screw. The lifting slide table is used to support the imaging fixture.

[0010] As a further technical solution of this utility model: a first transmission housing is installed at one end of the support of the horizontal brake frame, and a first transmission motor is provided in the middle of the housing of the first transmission housing. A first transmission shaft is provided at the output end of the first transmission motor, which is opposite to the horizontal lead screw. A first bevel gear A is provided symmetrically at both ends of the shaft of the first transmission shaft. A first bevel gear B that meshes with the first bevel gear A is provided at one end of the shaft of each set of the horizontal lead screws.

[0011] As a further technical solution of this utility model: the upper end of the support of the lifting brake frame is provided with a second transmission shell, the middle of the shell of the second transmission shell is provided with a second transmission motor, the output end of the second transmission motor is provided with a second transmission shaft opposite to the lifting screw, the two ends of the shaft of the second transmission shaft are provided with second bevel gears A in a symmetrical manner, and one end of the shaft of each set of lifting screws is respectively provided with a second bevel gear B that meshes with the second bevel gear A.

[0012] As a further technical solution of this utility model: the support base is a U-shaped support structure, and the U-shaped groove wall of the support base is covered with a breathable soft pad.

[0013] This invention provides a vascular imaging device, which has the following advantages compared with the prior art:

[0014] The vascular imaging device designed in this paper uses a support base as the puncture carrier for the patient's limb. Then, the imaging positioning mechanism is used to lift, move, and advance the imaging fixture to maintain a suitable distance between the imaging fixture and the patient. The imaging fixture is then moved to perform scanning imaging on the patient's limb. During the scanning imaging, the intensity of the near-infrared lamp can be adjusted according to the patient's body size to more clearly reflect the vascular trend map projected by the patient's blood vessels, thereby improving the clarity and accuracy of the puncture operation for medical staff. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a blood vessel imaging device; Figure 2 A first cross-sectional view of an imaging alignment mechanism in a vascular imaging device; Figure 3 This is a second sectional view of an imaging alignment mechanism in a vascular imaging device; Figure 4 This is a schematic diagram of the imaging fixture in a vascular imaging instrument.

[0016] In the diagram: 1. Support frame; 2. Support base; 3. Imaging fixture; 31. Fixture frame; 32. Brake motor; 33. Drive shaft; 34. Fixed bushing; 35. Near-infrared lamp; 36. Engaging gear; 37. Infrared camera; 38. Projector; 4. Horizontal brake frame; 5. Horizontal slide; 6. First transmission housing; 7. Lifting brake frame; 8. Lifting slide; 9. Second transmission housing; 10. Second transmission motor; 11. Second transmission shaft; 12. Second bevel gear A; 13. Second bevel gear B; 14. Lifting lead screw; 15. Lifting guide rail; 16. First transmission motor; 17. First transmission shaft; 18. First bevel gear A; 19. First bevel gear B; 20. Horizontal lead screw; 21. Horizontal guide rail. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4This utility model provides a vascular imaging instrument technical solution: a vascular imaging instrument includes a support frame 1 and a support seat 2 installed on the support frame 1. The support seat 2 has a U-shaped structure, and the U-shaped groove wall of the support seat 2 is covered with a breathable soft pad. By setting the support seat 2 to a U-shaped structure, it is beneficial to lay the patient's limb flat, and by setting a breathable soft pad on the support seat 2, it is beneficial to improve the patient's puncture comfort.

[0019] An image alignment mechanism is provided above the support frame 1 along the support direction of the support base 2. The image alignment mechanism includes a horizontal brake frame 4, which is horizontally installed on both sides of the support base 2. A horizontal lead screw 20 and a horizontal guide rail 21 are sequentially arranged on both sides of the support frame 4 from top to bottom. A horizontal slide 5, which guides the horizontal guide rail 21, is provided on the outer side of the shaft of the horizontal lead screw 20. A first transmission housing 6 is installed at one end of the support frame 4, and a first transmission motor 16 is provided in the middle of the housing of the first transmission housing 6. A first transmission shaft 17, which is opposite to the horizontal lead screw 20, is provided at the output end of the first transmission motor 16. The drive shaft 17 has symmetrical first bevel gears A18 at both ends. Each set of horizontal lead screws 20 has a first bevel gear B19 at one end that meshes with the first bevel gear A18. By controlling the first drive motor 16 to work, the first drive shaft 17 is driven to rotate, which in turn drives the first bevel gear A18 to rotate. The meshing transmission between the first bevel gear A18 and the first bevel gear B19 drives the horizontal lead screw 20 to rotate, which pushes the horizontal slide table 5 to slide along the track direction of the horizontal guide rail 21, and moves the imaging fixture 3 to facilitate the scanning and imaging of the vascular trend map of different parts of the patient's limb by the imaging fixture 3.

[0020] A lifting brake frame 7 is installed between two opposing sets of horizontal slides 5. A lifting screw 14 and a lifting guide rail 15 are sequentially arranged on both sides of the support of the lifting brake frame 7 from the inside out. A lifting slide 8, which guides the lifting guide rail 15, is arranged on the outer side of the shaft of the lifting screw 14. The lifting slide 8 supports the developing fixture 3. A second transmission housing 9 is provided at the upper end of the support of the lifting brake frame 7. A second transmission motor 10 is provided in the middle of the housing of the second transmission housing 9. A second transmission shaft 11, which is opposite to the lifting screw 14, is provided at the output end of the second transmission motor 10. The two ends of the shaft of the second transmission shaft 11 are opposite to each other. The device is equipped with a second bevel gear A12. Each set of lifting screws 14 has a second bevel gear B13 at one end of its shaft that meshes with the second bevel gear A12. By controlling the second transmission motor 10, the second transmission shaft 11 is driven to rotate, which in turn drives the second bevel gear A12 to rotate. The meshing transmission between the second bevel gear A12 and the second bevel gear B13 drives the lifting screw 14 to rotate, which pushes the lifting slide 8 to slide up and down along the track direction of the lifting guide rail 15. This allows for the lifting and lowering displacement of the imaging fixture 3, maintaining a suitable spacing for scanning and imaging the vascular trend of the patient's limb.

[0021] The lifting platform of the imaging calibration mechanism is equipped with an imaging fixture 3. The imaging fixture 3 includes a fixture frame 31. Two sets of drive shafts 33 are symmetrically arranged inside the support of the fixture frame 31. Each set of drive shafts 33 has multiple sets of fixed bushings 34 arranged along its shaft direction. Each set of fixed bushings 34 has a near-infrared lamp 35 installed inside, opposite to the support base 2. An infrared camera 37 is installed on one side of the base of the fixture frame 31, opposite to the support base 2, and a projector 38 is installed on the other side of the base of the fixture frame 31, opposite to the support base 2. The shafts of the two sets of drive shafts 33 are respectively provided with mutually meshing... The two sets of meshing gears 36 are connected. A brake motor 32 that drives one set of transmission shafts 33 is installed on one side of the bracket of the tooling frame 31. By controlling the operation of the brake motor 32, one set of transmission shafts 33 is driven to rotate. Then, by utilizing the symmetrical meshing of the two sets of meshing gears 36, the two horizontally corresponding sets of transmission shafts 33 are driven to rotate symmetrically. This in turn drives the two sets of near-infrared lamps 35 to rotate in opposite directions, so that the near-infrared light of the two sets of near-infrared lamps 35 is converged to increase the light intensity of the near-infrared light, so as to better irradiate and penetrate the patient's limb, clearly display the vascular trend map, and facilitate the precise puncture work of medical staff.

[0022] The working principle of this utility model is as follows: When using a vascular imaging instrument to perform puncture imaging on a patient, after the patient places their limb flat on the support base 2, the second drive motor 10 can be controlled to work, driving the second drive shaft 11 to rotate, which in turn drives the combination of the second bevel gear A12 and the second bevel gear B13 to drive the lifting screw 14 to rotate. Using the braking of the lifting screw 14, the lifting slide 8 is pushed up and down along the track direction of the lifting guide rail 15, and the imaging fixture 3 is moved up and down to maintain a suitable distance for scanning and imaging the vascular trend of the patient's limb. Then, the first drive motor 16 is controlled to work, driving the first drive shaft 17 to rotate, which in turn drives the combination of the first bevel gear A18 and the first bevel gear B19 to drive the horizontal screw 20 to rotate. While the horizontal screw 20 is braking, it pushes the horizontal slide 5 along the horizontal guide rail 21. The track is slidably moved to move the imaging fixture 3 and scan the vascular trend map of different parts of the patient's limb. Further, while scanning the blood vessels of the patient's limb, the intensity of the near-infrared light can be adjusted according to the patient's body size. During the adjustment process, the brake motor 32 is controlled to work, driving one set of transmission shafts 33 to rotate. The symmetrical meshing of two sets of meshing gears 36 drives the two sets of transmission shafts 33 to rotate symmetrically, which in turn drives the two sets of near-infrared lamps 35 to rotate in opposite directions. This causes the near-infrared light of the two sets of near-infrared lamps 35 to converge in opposite directions, thereby increasing the light intensity of the near-infrared light and better illuminating and penetrating the patient's limb to clearly display the vascular trend map. At the same time, the projection imaging of the projector 38 and the scanning imaging of the infrared camera 37 are used to scan and display the patient's vascular trend map.

[0023] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.

Claims

1. A vascular imaging device, characterized in that, Includes a support frame (1) and a support base (2) mounted on the support frame (1); An image alignment mechanism is provided above the support frame (1) along the support direction of the support seat (2), and the lifting platform of the image alignment mechanism is equipped with an image fixture (3). The imaging fixture (3) includes a fixture frame (31). The fixture frame (31) has two sets of drive shafts (33) arranged symmetrically inside the support. Each set of drive shafts (33) has multiple sets of fixed bushings (34) arranged along its shaft direction. Each set of fixed bushings (34) has a near-infrared lamp (35) installed inside, which is opposite to the support base (2). An infrared camera (37) is provided on one side of the base frame of the fixture frame (31), which is opposite to the support base (2). A projector (38) is provided on the other side of the base frame of the fixture frame (31), which is opposite to the support base (2).

2. The vascular imaging device according to claim 1, characterized in that, The two sets of transmission shafts (33) are respectively provided with meshing gears (36) at one end of the shaft.

3. The vascular imaging device according to claim 1, characterized in that, A brake motor (32) for driving one of the drive shafts (33) is installed on one side of the bracket of the tooling frame (31).

4. A vascular imaging device according to claim 1, characterized in that, The imaging alignment mechanism includes a horizontal brake frame (4), which is horizontally installed on both sides of the support base (2). The horizontal brake frame (4) is provided with a horizontal lead screw (20) and a horizontal guide rail (21) from top to bottom on both sides of the support. A horizontal slide (5) is provided on the outer side of the shaft of the horizontal lead screw (20) and guided by the horizontal guide rail (21). A lifting brake frame (7) is installed between the two sets of horizontal slides (5). A lifting lead screw (14) and a lifting guide rail (15) are provided on both sides of the support of the lifting brake frame (7) from inside to outside. A lifting slide (8) is provided on the outer side of the shaft of the lifting lead screw (14) and guided by the lifting guide rail (15). The lifting slide (8) is used to support the imaging fixture (3).

5. A vascular imaging device according to claim 4, characterized in that, The first transmission housing (6) is installed at one end of the bracket of the horizontal brake frame (4), and the first transmission motor (16) is provided in the middle of the housing of the first transmission housing (6). The output end of the first transmission motor (16) is provided with a first transmission shaft (17) opposite to the horizontal lead screw (20). The two ends of the shaft of the first transmission shaft (17) are provided with a first bevel gear A (18) in a symmetrical manner. Each set of the horizontal lead screw (20) is provided with a first bevel gear B (19) that meshes with the first bevel gear A (18) at one end of the shaft.

6. A vascular imaging device according to claim 4, characterized in that, The upper end of the support of the lifting brake frame (7) is provided with a second transmission shell (9), and the middle of the shell of the second transmission shell (9) is provided with a second transmission motor (10). The output end of the second transmission motor (10) is provided with a second transmission shaft (11) opposite to the lifting screw (14). The two ends of the shaft of the second transmission shaft (11) are provided with second bevel gears A (12) in a symmetrical manner. One end of the shaft of each set of lifting screws (14) is provided with a second bevel gear B (13) that meshes with the second bevel gear A (12).

7. A vascular imaging device according to claim 1, characterized in that, The support base (2) is a U-shaped structure, and the U-shaped groove wall of the support base (2) is covered with a breathable soft pad.

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