Auxiliary puncture device for laser-guided blood vessel development

Abstract

The utility model relates to the technical field of blood vessel puncture, in particular to a laser-guided blood vessel developing auxiliary puncture device which comprises a puncture table, the outer portion of a threaded lead screw is in threaded connection with a translation seat, the left end of a sleeve is rotationally connected with a puncture ring, and the top of the sleeve is fixedly connected with a dial. The left side of the translation seat is fixedly connected with a positioning ring, and the top of the puncture table is fixedly connected with a curved-surface soft cushion. According to the laser-guided blood vessel developing auxiliary puncture device, a palm or an arm is placed on the inner side of the curved-surface soft cushion, the blood vessel imaging instrument is started to irradiate body surface blood vessels, images are displayed on the imaging screen, then the threaded lead screw is rotated to enable the translation seat to drive the puncture ring and the positioning ring to move front and back, the body surface puncture part of the puncture needle is determined, and then the puncture needle can be punctured by rotating the fine adjusting rod. The worm gear shaft is driven by meshing of the worm to change the deflection angle of the puncture ring, and the puncture angle of the puncture needle is adjusted in cooperation with the angle pointing of the pointer piece on the dial.

Description

Technical Field

[0001] The utility model relates to the technical field of blood vessel puncture, in particular to a laser-guided blood vessel development-assisted puncture device. Background Art

[0002] The laser-guided vascular development and puncture device uses the principle that hemoglobin in the blood absorbs near-infrared light more strongly than other tissues. After the infrared light contacts the human blood vessels, it is reflected and the thickness, direction, distribution and contour of the blood vessels are displayed in real time on the display structure, thereby assisting medical staff in performing intravenous puncture, thereby accurately evaluating the accuracy of the blood vessels, reducing the risk of puncture, and ultimately increasing the success rate of puncture and improving the quality of care.

[0003] After searching, it is found that a utility model patent with Chinese patent publication number CN218128499U discloses a vascular puncture auxiliary device. The vascular puncture auxiliary device in the utility model patent also uses a vascular imager to image the surface blood vessels, and realizes the adjustability of the projection vascular imager in the x-axis direction and the z-axis direction by configuring a slide and adjusting the support. However, during the puncture process, medical staff need to pierce the patient's body surface with a puncture needle, and the vascular puncture auxiliary device cannot assist in positioning the puncture needle. Therefore, the effect of improving the success rate of puncture needs to be further improved. Therefore, a laser-guided vascular development auxiliary puncture device is proposed. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a laser-guided vascular development-assisted puncture device, which has the advantages of being able to assist in positioning during puncture, etc., and solves the problem that the vascular puncture auxiliary device in the above-mentioned background technology cannot assist in positioning during puncture, and the effect of improving the puncture success rate still needs to be improved.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laser-guided vascular development-assisted puncture device, comprising a puncture table, the top of which is fixedly connected to a support rod, the top of which is fixedly mounted with a vascular imager, the top of which is fixedly mounted with an imaging screen, and the top of which is provided with an auxiliary positioning structure;

[0006] The auxiliary positioning structure includes a slide plate, a threaded screw, a translation seat, a sleeve, a puncture ring, a dial, a worm gear shaft, a worm, a fine-adjustment rod, a positioning ring and a curved cushion. The top of the puncture table is fixedly connected to the slide plate, the interior of the slide plate is rotatably connected to the threaded screw, the external thread of the threaded screw is threadably connected to the translation seat, a sleeve is provided on the left side of the translation seat, the left end of the sleeve is rotatably connected to the puncture ring, the top of the sleeve is fixedly connected to the dial, the interior of the sleeve is rotatably connected to the worm gear shaft, the interior of the translation seat is rotatably connected to the worm, the interior of the translation seat is rotatably connected to the fine-adjustment rod, the left side of the translation seat is fixedly connected to the positioning ring, and the top of the puncture table is fixedly connected to the curved cushion.

[0007] Furthermore, the support rod includes a first support rod and a second support rod, the inner bottom wall of the first support rod is rotatably connected to a threaded conical rod, the bottom of the threaded conical rod is meshed with a conical gear rotating rod, and the bottom of the second support rod is fixedly connected to a lifting ring, the inner side of the lifting ring is connected to the outer thread of the threaded conical rod.

[0008] Furthermore, the number of the threaded screws is two, the front ends of the two threaded screws are fixedly connected to pulley rods, the two pulley rods are connected by belt transmission, the front end of one of the pulley rods is fixedly connected to a first handwheel, and the bottom of the translation seat is fixedly connected to a sliding block, and the sliding block is respectively connected to the external threads of the two threaded screws.

[0009] Furthermore, a pointer piece is fixedly connected to the top right side of the puncture ring, the dial is a semicircular structure, the left end of the worm gear shaft is fixedly connected to the right side of the puncture ring, and the right end of the worm gear shaft passes through the left side of the translation seat and engages with the outside of the worm, and the front and rear ends of the worm are fixedly connected to a No. 1 gear.

[0010] Furthermore, the front and rear ends of the fine adjustment rod are fixedly connected with a No. 2 gear, the two No. 2 gears are respectively meshed with two No. 1 gears, the ring gear diameter of each No. 1 gear is twice the ring gear diameter of each No. 2 gear, the front end of one of the No. 2 gears is fixedly connected with a second hand wheel, the top of the puncture table is fixedly connected with a square bracket, and the left side of the positioning ring is slidably connected to the inner left wall of the square bracket.

[0011] Furthermore, the positioning ring is located directly below the puncture ring, the inner side of the curved soft cushion is a latex pad structure, an infrared light source generator and an infrared camera are provided at the bottom of the vascular imager, and the left side of the vascular imager is fixedly connected to the top of the second support rod through a connecting rod, and the imaging screen is connected to the vascular imager signal.

[0012] Beneficial Effects

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] The laser-guided vascular development-assisted puncture device places the patient's palm or arm inside the curved cushion, turns on the vascular imager, uses the infrared light source generator at the bottom to irradiate the surface blood vessels, and displays the blood vessel image on the display screen. Then, the threaded screw is rotated to make the translation seat drive the puncture ring and the positioning ring to move back and forth, determine the surface insertion site of the puncture needle, and facilitate puncture positioning. Then, by rotating the fine adjustment rod, the worm gear is engaged to drive the worm gear shaft to change the deflection angle of the puncture ring, and the angular direction of the pointer on the dial is coordinated to adjust the insertion angle of the puncture needle, thereby further improving the puncture efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of the overall structure of the utility model;

[0016] Figure 2 for Figure 1 Perspective top view;

[0017] Figure 3 for Figure 2 Top view of the puncture ring structure in perspective;

[0018] Figure 4 for Figure 2 Top view of the positioning ring structure in perspective;

[0019] Figure 5 for Figure 3 A top view of the translation seat structure in the viewing angle;

[0020] Figure 6 for Figure 1 Schematic diagram of the dial structure in perspective.

[0021] In the figure: 1. puncture table; 2. support rod; 201. first support rod; 202. second support rod; 3. vascular imager; 4. image display screen; 5. auxiliary positioning structure; 501. slide plate; 502. threaded screw; 503. translation seat; 504. sleeve; 505. puncture ring; 506. dial; 507. worm gear shaft; 508. worm; 509. fine adjustment rod; 510. positioning ring; 511. curved cushion. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-6 A laser-guided vascular development-assisted puncture device comprises a puncture platform 1, a support rod 2 is fixedly connected to the top of the puncture platform 1, wherein the support rod 2 comprises a first support rod 201 and a second support rod 202, a threaded cone rod is rotatably connected to the inner bottom wall of the first support rod 201, and the threaded cone rod drives the second support rod 202 to rise by engaging the cone gear rotating rod, so that the lifting ring drives the second support rod 202 to rise, which is convenient for adjusting the distance between the blood vessel imager 3 and the body surface, a blood vessel imager 3 is fixedly installed on the top of the support rod 2, an infrared light source generator and an infrared camera are arranged at the bottom of the blood vessel imager 3, and the interior of the blood vessel imager 3 also comprises a CCD photosensitive chip and an image signal processing system module, an imaging screen 4 is fixedly installed on the right side of the top of the puncture platform 1, and the blood vessel imager 3 is connected to the imaging screen 4 through the image signal processing system module, and an auxiliary positioning structure 5 is arranged on the top of the puncture platform 1.

[0024] The auxiliary positioning structure 5 includes a carriage plate 501, a threaded screw 502, a translation seat 503, a sleeve 504, a puncture ring 505, a dial 506, a worm shaft 507, a worm 508, a fine adjustment rod 509, a positioning ring 510 and a curved cushion 511. The top of the puncture table 1 is fixedly connected with the carriage plate 501, the interior of the carriage plate 501 is rotatably connected with the threaded screw 502, and the threaded screw 502 is rotated to drive the translation seat 503 to move forward and backward. The external thread of the threaded screw 502 is connected with the translation seat 503, and the sleeve 504 is arranged on the left side of the translation seat 503. The left end of the sleeve 504 is rotatably connected with the puncture seat The puncture ring 505 and the top of the sleeve 504 are fixedly connected with a dial 506, the sleeve 504 is internally rotatably connected with a worm gear shaft 507, the rotating worm 508 drives the worm gear shaft 507 to rotate, and the worm gear shaft 507 drives the puncture ring 505 to rotate, the internal rotation of the translation seat 503 is connected with a worm gear 508, the internal rotation of the translation seat 503 is connected with a fine adjustment rod 509, the left side of the translation seat 503 is fixedly connected with a positioning ring 510, and the positioning ring 510 is used to position the puncture ring 505, and the top of the puncture table 1 is fixedly connected with a curved cushion 511, which can increase the comfort of the patient's palm or arm.

[0025] When implementing, follow these steps:

[0026] 1) First, place the palm or arm on the curved cushion 511, and use the blood vessel imager 3 and the imaging screen 4 to irradiate and image the blood vessels on the body surface;

[0027] 2) Then, the threaded screw 502 is rotated to drive the translation seat 503 to move forward and backward, and the puncture ring 505 and the positioning ring 510 are used to determine the puncture site;

[0028] 3) Rotate the fine adjustment rod 509 and drive the worm 508 through gear meshing, so that the worm 508 drives the worm wheel shaft 507 to rotate slowly;

[0029] 4) Finally, the puncture needle insertion angle is determined by observing the deflection angle of the pointer piece on the puncture ring 505 at the scale plate 506 .

[0030] according to Figure 1 As shown, the support rod 2 includes a first support rod 201 and a second support rod 202, and the second support rod 202 is slidably connected to the inside of the first support rod 201, and the threaded cone rod is driven to rotate by rotating the bevel gear rotary rod, and the threaded cone rod drives the lifting ring and the second support rod 202 to move up and down. At the same time, the inner left wall and the inner right wall of the first support rod 201 are both provided with sliding grooves, and the left and right sides of the lifting ring are respectively slidably connected to the two sliding grooves, and the sliding grooves are used to limit the moving height of the lifting ring.

[0031] according to Figure 2 and Figure 5 As shown, the front ends of the two threaded screws 502 are connected to pulley rods driven by belts. When the first hand wheel is rotated, the two pulley rods synchronously drive the two threaded screws 502. The bottom of the translation seat 503 is threadedly connected to the two threaded screws 502 through a sliding block, so that the translation seat 503 moves back and forth.

[0032] according to Figure 1 and Figure 5 As shown, a pointer piece is connected to the top right side of the puncture ring 505, and a fan-shaped angle scale is arranged on the left side of the semicircular structure dial 506. The worm gear shaft 507 is driven by the engagement of the worm 508, and the worm gear shaft 507 drives the puncture ring 505 and the pointer piece to rotate slightly. When the pointer piece swings with the puncture ring 505, the deflection angle of the puncture ring 505 can be displayed.

[0033] according to Figure 2 and Figure 3 as well as Figure 5 As shown, the front and rear ends of the fine adjustment rod 509 are respectively engaged with the front and rear ends of the worm 508 through the No. 1 gear and the No. 2 gear. Since the ring gear diameter of each No. 1 gear is twice the ring gear diameter of each No. 2 gear, the worm 508 can be ensured to rotate slowly to prevent the puncture ring 505 from deflecting too much.

[0034] according to Figure 1 and Figure 3 as well as Figure 4As shown, the positioning ring 510 is located directly below the puncture ring 505 for easy positioning. The inner side of the curved soft cushion 511 is a latex cushion structure, which can improve the comfort of the patient's palm or arm. An infrared light source generator and an infrared camera are provided at the bottom of the vascular imager 3. Combined with the principle that hemoglobin in arteries and veins has a strong ability to absorb infrared light, oxygenated hemoglobin and deoxygenated hemoglobin have a stronger ability to absorb infrared light than other tissues. Therefore, the intensity of the reflected infrared light is sensed by the infrared camera, and the emitted infrared light is processed by the image signal processing system module, so that the shape and position of the observed blood vessel can be displayed on the imaging screen 4.

[0035] In summary, the laser-guided vascular development auxiliary puncture device is to place the patient's palm or arm inside the curved soft cushion 511, turn on the vascular imager 3, use the infrared light source generator at the bottom to irradiate the surface blood vessels, and display the blood vessel image on the display screen 4, then rotate the threaded screw 502 to make the translation seat 503 drive the puncture ring 505 and the positioning ring 510 to move back and forth, determine the surface insertion site of the puncture needle, and facilitate puncture positioning, and then by rotating the fine adjustment rod 509, the worm 508 is engaged to drive the worm gear shaft 507 to change the deflection angle of the puncture ring 505, and cooperate with the angle of the pointer piece on the dial 506 to adjust the insertion angle of the puncture needle, thereby further improving the puncture efficiency, solving the problem that the auxiliary device for vascular puncture in the above-mentioned background technology cannot assist in positioning during puncture, and the effect of improving the puncture success rate needs to be improved.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser-guided vascular imaging-assisted puncture device, comprising a puncture table (1), characterized in that: The top of the puncture table (1) is fixedly connected to a support rod (2), a blood vessel imager (3) is fixedly installed on the top of the support rod (2), an imaging screen (4) is fixedly installed on the right side of the top of the puncture table (1), and an auxiliary positioning structure (5) is provided on the top of the puncture table (1); The auxiliary positioning structure (5) comprises a carriage plate (501), a threaded screw (502), a translation seat (503), a sleeve (504), a puncture ring (505), a dial (506), a worm gear shaft (507), a worm (508), a fine adjustment rod (509), a positioning ring (510) and a curved cushion (511); the top of the puncture table (1) is fixedly connected to the carriage plate (501); the interior of the carriage plate (501) is rotatably connected to the threaded screw (502); the exterior of the threaded screw (502) is threadedly connected to the translation seat (503); the translation seat (503) is 03) is provided with a sleeve (504) on the left side, the left end of the sleeve (504) is rotatably connected to a puncture ring (505), the top of the sleeve (504) is fixedly connected to a dial plate (506), the interior of the sleeve (504) is rotatably connected to a worm gear shaft (507), the interior of the translation seat (503) is rotatably connected to a worm (508), the interior of the translation seat (503) is rotatably connected to a fine adjustment rod (509), the left side of the translation seat (503) is fixedly connected to a positioning ring (510), and the top of the puncture table (1) is fixedly connected to a curved cushion (511).

2. The laser-guided vascular imaging-assisted puncture device according to claim 1, characterized in that: The support rod (2) comprises a first support rod (201) and a second support rod (202); the inner bottom wall of the first support rod (201) is rotatably connected to a threaded conical rod, the bottom of the threaded conical rod is meshed with a conical gear rotary rod, and the bottom of the second support rod (202) is fixedly connected to a lifting ring, the inner side of the lifting ring is threadably connected to the outer side of the threaded conical rod.

3. The laser-guided vascular imaging-assisted puncture device according to claim 1, characterized in that: There are two threaded screws (502), the front ends of the two threaded screws (502) are fixedly connected to pulley rods, the two pulley rods are connected via a belt drive, the front end of one of the pulley rods is fixedly connected to a first hand wheel, and the bottom of the translation seat (503) is fixedly connected to a sliding block, and the sliding block is respectively connected to the external threads of the two threaded screws (502).

4. The laser-guided vascular imaging-assisted puncture device according to claim 1, characterized in that: A pointer piece is fixedly connected to the top right side of the puncture ring (505), the dial (506) is a semicircular structure, the left end of the worm gear shaft (507) is fixedly connected to the right side of the puncture ring (505), and the right end of the worm gear shaft (507) passes through the left side of the translation seat (503) and meshes with the outside of the worm (508), and the front and rear ends of the worm (508) are fixedly connected to the first gear.

5. The laser-guided vascular imaging-assisted puncture device according to claim 4, characterized in that: The front and rear ends of the fine adjustment rod (509) are fixedly connected to a No. 2 gear, and the two No. 2 gears are respectively meshed with two No. 1 gears, and the ring diameter of each No. 1 gear is twice the ring diameter of each No. 2 gear, and the front end of one of the No. 2 gears is fixedly connected to a second hand wheel, and the top of the puncture table (1) is fixedly connected to a square bracket, and the left side of the positioning ring (510) is slidably connected to the inner left wall of the square bracket.

6. The laser-guided vascular imaging-assisted puncture device according to claim 2, characterized in that: The positioning ring (510) is located directly below the puncture ring (505), the inner side of the curved soft cushion (511) is a latex cushion structure, the bottom of the vascular imager (3) is provided with an infrared light source generator and an infrared camera, and the left side of the vascular imager (3) is fixedly connected to the top of the second support rod (202) through a connecting rod, and the imaging screen (4) is connected to the vascular imager (3) by signal.

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