Intelligent near-infrared angiography automatic blood sampling instrument

Abstract

The invention relates to the technical field of blood sampling instruments, in particular to an intelligent near-infrared angiography automatic blood sampling instrument. According to the technical scheme, the fixing device comprises a positioning part, the positioning part comprises a soft cushion fixedly installed at the top of a base, a positioning ring is fixedly installed at the top of the soft cushion, a pressurizing air bag is fixedly installed on the inner arc face of the positioning ring, an abutting air bag is fixedly installed on the inner arc face of the pressurizing air bag, and a through pipe is fixedly installed on the outer arc face of the pressurizing air bag. The pressurizing air bag is inflated with air to be expanded, the pressurizing air bag and the arm extrude the abutting air bag, the air in the abutting air bag enters the telescopic air bag after the abutting air bag is extruded, the telescopic air bag stretches out to enable the pressing type normally-open valve to stop air circulation at the through pipe, and therefore the device is suitable for patients with arms different in thickness; the problems that the compression force of the pressurizing air bag is insufficient, venous blood backflow cannot be effectively blocked, meanwhile, veins are difficult to fully expand, blood vessels can still be thin and not obvious, and puncture blood sampling is affected are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of blood sampling instruments, and particularly to an intelligent near-infrared blood vessel imaging automatic blood sampling instrument. BACKGROUND

[0002] A blood sampling instrument is a medical device for collecting human blood samples. Through specific technology or mechanical structure, it realizes safe, efficient and standardized blood sampling to provide sample support for clinical diagnosis, disease monitoring and health examination. The blood sampling instrument uses disposable consumables (such as a blood sampling needle and a blood sampling tube), and some devices are designed with structures for preventing needle sticks and blood exposure to reduce the possibility of cross-infection between operators and patients.

[0003] In the patent document with publication number CN110403616B, a blood pressure and pulse instrument is provided. The instrument is provided with a rotating shell and a fixed shell. The subject presses the non-woven fabric into the groove, and then the rotating shell is clamped on the surface of the fixed shell. The air bag in the groove is inflated, and the blood pressure and pulse count of the subject are measured by using the blood pressure and pulse count sensors inside. The air bag is used to press the vein to make it clearly exposed, which facilitates blood drawing. The use of non-woven fabric also avoids cross-infection caused by multiple people using the same pressure pulse belt. The blood drawing, blood pressure measurement and pulse counting are combined together to realize full-process automation, and the labor of medical staff is reduced.

[0004] The arms of different people have different thicknesses. If the same volume of gas is filled into the air bag, the air bag cannot effectively block the return of venous blood, and the vein cannot be fully inflated. The blood vessel may still be thin and not obvious, which affects blood sampling by puncture. SUMMARY

[0005] The present application aims to solve the problem of insufficient air bag compression force to effectively block the return of venous blood in the background art, and provides an intelligent near-infrared blood vessel imaging automatic blood sampling instrument.

[0006] The technical solution of the present application is an intelligent near-infrared blood vessel imaging automatic blood sampling instrument, which comprises a base, a vertical plate fixedly installed on the top of the base, and the following components: A positioning part comprises a soft pad fixedly installed on the top of the base, a positioning ring fixedly installed on the top of the soft pad, an air pressure bag fixedly installed on the inner arc surface of the positioning ring, a counter air bag fixedly installed at the inner arc surface of the air pressure bag, a through pipe fixedly installed at the outer arc surface of the air pressure bag, and a closure element provided between the counter air bag and the through pipe. A blood sampling part comprises an intermediate block slidingly connected to the side of the vertical plate, and a blood sampling device provided on the side of the intermediate block. An inductive pressure ring is fixedly installed on the inner arc surface of the air pressure bag and located opposite to the counter air bag.

[0007] Optionally, the positioning ring adopts an arc structure, and the resisting air bag adopts a cylindrical structure design, and the bottom of the resisting air bag is in contact with the human arm.

[0008] Optionally, the closing piece comprises a gas pipe, the gas pipe is fixedly installed on the inner wall of the positioning ring, one end of the gas pipe is in communication with the resisting air bag, and the other end of the gas pipe is in communication with the telescopic air bag.

[0009] Optionally, a press type normally open valve is fixedly installed on the pipe, one end of the telescopic air bag is fixedly installed in the positioning ring, and the other end of the telescopic air bag is fixedly connected with the pressing part of the press type normally open valve.

[0010] Optionally, the volume of the resisting air bag is larger than that of the telescopic air bag, and the press type normally open valve is internally provided with a reset spring.

[0011] Optionally, the bottom of the middle block is fixedly installed with a hydraulic telescopic rod, the bottom of the hydraulic telescopic rod is fixedly connected with the vertical plate, and the middle block and the blood collector are fixedly installed with an electric telescopic rod.

[0012] Optionally, the top of the positioning ring is fixedly installed with a hydraulic injection pipe, the hydraulic injection pipe is in communication with the hydraulic telescopic rod through a hydraulic pipe, the hydraulic injection pipe is slidably connected with a hydraulic piston in the inside, the bottom of the hydraulic piston is fixedly installed with a straight rod, the bottom of the straight rod is fixedly connected with the resisting air bag, and the diameter of the hydraulic telescopic rod is the same as that of the straight rod.

[0013] Optionally, a circular hole is formed in the top of the pressurized air bag and located at the top of the resisting air bag, the straight rod is inserted into the circular hole, the gas pipe is inserted into the straight rod, and an avoiding groove for avoiding the gas pipe is formed in the inner wall of the electric telescopic rod and located close to the straight rod.

[0014] Optionally, the side of the vertical plate is fixedly installed with a vein imaging lamp, and the light emitted by the vein imaging lamp irradiates the human arm.

[0015] Optionally, the top of the middle block is fixedly installed with an illumination sterilizer, the illumination sterilizer is obliquely arranged, and the end of the illumination sterilizer is directed to the end of the positioning ring.

[0016] Compared with the prior art, the present application has the following beneficial technical effects: The present application inflates the pressurized air bag by filling gas into the pressurized air bag, the pressurized air bag and the arm squeeze the resisting air bag, the gas in the resisting air bag enters the telescopic air bag after the resisting air bag is squeezed, the telescopic air bag is extended to cut off the gas flow at the pipe of the press type normally open valve, so that the patients with different arm thicknesses are adapted, the pressurized air bag pressure is avoided to be insufficient to effectively block the venous blood reflux, meanwhile, the vein is difficult to fully expand, the blood vessel may still be thin and not obvious, and the puncture blood collection is affected.

[0017] Further, the pressurized air bag expands, which makes the resisting air bag move downward, at the same time, the resisting air bag pulls the straight rod to make the hydraulic piston move downward to draw the hydraulic oil in the hydraulic telescopic rod into the hydraulic injection pipe, so that the hydraulic telescopic rod is contracted to reduce the height of the blood collector, thereby adjusting the height of the blood collector to be able to stably pierce the human arm to collect blood. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The overall structure schematic diagram of the present application is given; Figure 2 The soft cushion structure schematic diagram of the present application is given; Figure 3 The positioning ring structure front view schematic diagram of the present application is given; Figure 4 The A part telescopic air bag structure enlarged schematic diagram of the present application is given; Figure 3 The blood collector structure schematic diagram of the present application is given; Figure 5 The intermediate block structure separated state schematic diagram of the present application is given. Figure 6 The figure mark: 1, base; 2, vertical plate; 3, venous imaging lamp; 4, light disinfecting device; 5, positioning part; 51, soft cushion; 52, positioning ring; 53, pressurized air bag; 54, resisting air bag; 55, air pipe; 56, telescopic air bag; 57, press type normally open valve; 58, through pipe; 6, blood collecting part; 61, intermediate block; 62, electric telescopic rod; 63, blood collector; 64, hydraulic telescopic rod; 65, hydraulic injection pipe; 66, hydraulic piston; 67, straight rod; 7, inductive pressurized ring.

[0019] DETAILED DESCRIPTION

[0020] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments.

[0021] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application.

[0022] Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application.

[0023] ​In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] Example 1: This example proposes an intelligent near-infrared vascular imaging automated blood collection device, such as... Figure 1 As shown, the device includes a base 1, a vertical plate 2 fixedly mounted on the top of the base 1, and a vein imaging lamp 3 fixedly mounted on the side of the vertical plate 2. The vein imaging lamp 3 uses near-infrared light of a specific wavelength to irradiate the skin. Blood vessels absorb the light due to the presence of hemoglobin, while other tissues strongly scatter and weakly absorb the light. The near-infrared light reflected or scattered by the near-infrared imaging device is captured. The captured information is converted by photoelectric conversion and image processing to finally locate the specific position of the blood vessel and project it onto the corresponding area for clear imaging. This non-invasive detection quickly finds a vein suitable for blood collection. Based on the principle of optimizing vascular elasticity and endothelial function, multiple colors are used for imaging, and the optimal blood vessel is marked and the needle insertion point is located, which is then transmitted to the blood collection device.

[0026] In Example 5, a blood collection section 6 is provided on the side of the upright plate 2. The blood collection section 6 includes a middle block 61 slidably connected to the side of the upright plate 2, and a blood collection device 63 is provided on the side of the middle block 61. A light sterilizer 4 is fixedly installed on the top of the middle block 61. Sterilization is sprayed with a diameter of 5 cm around the blood collection point, and the sterilization amount is preset and precisely calculated. The blood collection device 63 consists of a blood collection needle, a needle holder, and a blood collection tube.

[0027] like Figure 2 and Figure 3As shown, the top of the base 1 is provided with a positioning part 5, which comprises a soft pad 51 fixedly installed on the top of the base 1, a positioning ring 52 fixedly installed on the top of the soft pad 51, a pressurized air bag 53 fixedly installed on the inner arc surface of the positioning ring 52, and an inductive pressurized ring 7 fixedly installed on the inner arc surface of the pressurized air bag 53 and opposite to the pressurized air bag 53.

[0028] The inductive pressurized ring 7 moves towards the human arm by inflating the pressurized air bag 53, and the inductive pressurized ring 7 pressurizes the patient's limb part while monitoring the blood oxygen saturation and pulse.

[0029] As shown, Figure 4 The positioning ring 52 adopts an arc structure, and the pressurized air bag 53 adopts a cylindrical structure design, the bottom of the pressurized air bag 53 is in contact with the human arm, a through pipe 58 is fixedly installed on the outer arc surface of the pressurized air bag 53, a gas pump is fixedly installed in the inside of the base 1 and communicates with the through pipe 58, a sealing element is arranged between the pressurized air bag 53 and the through pipe 58, and the sealing element comprises an air pipe 55 fixedly installed on the inner wall of the positioning ring 52, one end of the air pipe 55 communicates with the pressurized air bag 53, and the other end of the air pipe 55 communicates with a telescopic air bag 56.

[0030] A pressurized normally open valve 57 is fixedly installed on the through pipe 58, one end of the telescopic air bag 56 is fixedly installed in the inside of the positioning ring 52, and the other end of the telescopic air bag 56 is fixedly connected with the pressing part of the pressurized normally open valve 57. The pressurized normally open valve 57 is a normally open valve, and the pressurized normally open valve 57 is closed when pressed.

[0031] The pressurized air bag 53 is inflated to push the pressurized air bag 54 towards the human arm, and when the pressurized air bag 54 contacts the human arm, the pressurized air bag 54 is extruded by the pressurized air bag 53 and the arm, the gas in the pressurized air bag 54 enters the inside of the telescopic air bag 56 from the air pipe 55, the telescopic air bag 56 is extruded to extrude the pressing part of the pressurized normally open valve 57, so as to close the through pipe 58 and stop the gas from entering the pressurized air bag 53, that is, the inflation of the pressurized air bag 53 is stopped.

[0032] The arms of different people are different in thickness, the same volume of gas is filled into the air bag, the air bag cannot effectively block the venous blood return, the veins are difficult to fully expand, and the blood vessels may still be thin and not obvious, which affects the puncture blood collection.

[0033] In this embodiment, by inflating the pressurized air bag 53 with gas, the pressurized air bag 53 and the extrusion air bag 54 of the arm are in contact, and after the extrusion air bag 54 is extruded, the gas in the extrusion air bag 54 enters the telescopic air bag 56, the telescopic air bag 56 is extended to make the pressurized normally open valve 57 cut off the gas flow at the tube 58, thereby adapting to patients with different arm thicknesses, avoiding insufficient compression of the pressurized air bag 53 to effectively block the return of venous blood, and the vein is difficult to fully expand, the blood vessel may still be thin and not obvious, which affects the puncture blood collection.

[0034] In this embodiment, based on the basis of embodiment 1, an intelligent near-infrared blood vessel imaging automatic blood collection instrument is provided, as shown in Figure 5 The bottom of the middle block 61 is fixedly installed with a hydraulic telescopic rod 64, the bottom of the hydraulic telescopic rod 64 is fixedly connected with the vertical plate 2, and the middle block 61 and the blood collector 63 are fixedly installed with an electric telescopic rod 62. The height of the middle block 61 is changed by the hydraulic telescopic rod 64, and the blood collector 63 is used to collect blood from the human arm by the electric telescopic rod 62.

[0035] As shown in Figure 4 and Figure 6 The top of the positioning ring 52 is fixedly installed with a hydraulic injection pipe 65, the hydraulic injection pipe 65 is communicated with the hydraulic telescopic rod 64 through a hydraulic pipe, the hydraulic injection pipe 65 is slidably connected with a hydraulic piston 66 inside, the bottom of the hydraulic piston 66 is fixedly installed with a straight rod 67, the bottom of the straight rod 67 is fixedly connected with the extrusion air bag 54, and the diameter of the hydraulic telescopic rod 64 is the same as that of the straight rod 67. When the pressurized air bag 53 is inflated to move the extrusion air bag 54 downward, the extrusion air bag 54 pulls the straight rod 67 to move the hydraulic piston 66, and the hydraulic piston 66 moves downward to draw the hydraulic oil in the hydraulic telescopic rod 64 into the hydraulic injection pipe 65, so that the hydraulic telescopic rod 64 is retracted, and the hydraulic telescopic rod 64 moves the middle block 61 and the blood collector 63 downward.

[0036] Since the diameter of the hydraulic telescopic rod 64 is the same as that of the straight rod 67, the distance of the hydraulic telescopic rod 64 moving downward is the same as that of the extrusion air bag 54 moving downward, so that the height of the blood collector 63 is adapted to the thickness of the human arm.

[0037] In this embodiment, when the pressurized air bag 53 is inflated to move the extrusion air bag 54 downward, the extrusion air bag 54 pulls the straight rod 67 to move the hydraulic piston 66 downward to draw the hydraulic oil in the hydraulic telescopic rod 64 into the hydraulic injection pipe 65, so that the hydraulic telescopic rod 64 is retracted to lower the height of the blood collector 63, thereby adjusting the height of the blood collector 63 to stably pierce the human arm for blood collection.

[0038] The venous imaging lamp 3 irradiates the vein to show the needle entry point, the light disinfecting device 4 sprays disinfectant, the blood sampling needle of the blood sampler 63 enters the needle entry point to sample blood, after the blood sampling is completed, the needle is pulled out, the inductive press ring 7 presses to stop bleeding, and the blood sampling is ended.

[0039] The above specific embodiments are only several optional embodiments of the present application, and based on the technical solutions of the present application and the related inspirations of the above embodiments, the person skilled in the art can make various alternative improvements and combinations on the above specific embodiments.

Claims

1. An intelligent near-infrared blood vessel imaging automatic blood sampling instrument, comprising a base (1), a vertical plate (2) fixedly installed on the top of the base (1), and further comprising: a positioning part (5) comprising a soft pad (51) fixedly installed on the top of the base (1), a positioning ring (52) fixedly installed on the top of the soft pad (51), a pressurizing air bag (53) fixedly installed on the inner arc surface of the positioning ring (52), a counter air bag (54) fixedly installed at the inner arc surface of the pressurizing air bag (53), a through pipe (58) fixedly installed at the outer arc surface of the pressurizing air bag (53), and a closure element provided between the counter air bag (54) and the through pipe (58); a blood sampling part (6) comprising an intermediate block (61) slidingly connected to the side of the vertical plate (2), and a blood sampler (63) provided on the side of the intermediate block (61); an inductive pressurizing ring (7) fixedly installed on the inner arc surface of the pressurizing air bag (53) and located opposite to the counter air bag (54).

2. The smart near-infrared angiography automated phlebotomy instrument of claim 1, wherein: The positioning ring (52) adopts an arc structure, the counter air bag (54) adopts a cylindrical structure, and the bottom of the counter air bag (54) is in contact with the human arm.

3. The smart near-infrared angiography automated lancing device of claim 2, wherein: The closure element comprises an air pipe (55) fixedly installed on the inner wall of the positioning ring (52), one end of the air pipe (55) is in communication with the counter air bag (54), and the other end of the air pipe (55) is in communication with a telescopic air bag (56).

4. The smart near-infrared angiography automated lancing device of claim 3, wherein: A pressurizing normally open valve (57) is fixedly installed on the through pipe (58), one end of the telescopic air bag (56) is fixedly installed in the positioning ring (52), and the other end of the telescopic air bag (56) is fixedly connected with the pressing part of the pressurizing normally open valve (57).

5. The smart near-infrared angiography automated lancing device of claim 4, wherein: The volume of the counter air bag (54) is larger than that of the telescopic air bag (56), and the pressurizing normally open valve (57) is internally provided with a reset spring.

6. The smart near-infrared angiography automated lancing device of claim 5, wherein: A hydraulic telescopic rod (64) is fixedly installed on the bottom of the intermediate block (61), the bottom of the hydraulic telescopic rod (64) is fixedly connected with the vertical plate (2), and an electric telescopic rod (62) is fixedly installed between the intermediate block (61) and the blood sampler (63).

7. The smart near-infrared angiography automated lancing device of claim 6, wherein: A hydraulic injection pipe (65) is fixedly installed on the top of the positioning ring (52), the hydraulic injection pipe (65) is in communication with the hydraulic telescopic rod (64) through a hydraulic pipe, a hydraulic piston (66) is slidingly connected in the hydraulic injection pipe (65), a straight rod (67) is fixedly installed on the bottom of the hydraulic piston (66), the bottom of the straight rod (67) is fixedly connected with the counter air bag (54), and the diameter of the hydraulic telescopic rod (64) is the same as that of the straight rod (67).

8. The smart near-infrared angiography automated lancing device of claim 7, wherein: A circular hole is formed on the pressurizing air bag (53) and located at the top of the counter air bag (54), the straight rod (67) is inserted into the circular hole, the air pipe (55) penetrates from the straight rod (67), and an avoiding groove is formed in the inner wall of the electric telescopic rod (62) and close to the straight rod (67) to avoid the air pipe (55).

9. The smart near-infrared angiography automated lancing device of claim 8, wherein: A vein imaging lamp (3) is fixedly installed on the side of the vertical plate (2), and the light emitted by the vein imaging lamp (3) irradiates the human arm.

10. The smart near-infrared angiography automated lancing device of claim 9, wherein: The top of the intermediate block (61) is fixedly provided with an illumination sterilizer (4), the illumination sterilizer (4) is obliquely arranged, and the end of the illumination sterilizer (4) faces the end of the positioning ring (52).

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