Visual constant-speed blood transfusion apparatus

Abstract

The utility model provides a visual constant-speed blood transfusion apparatus, and belongs to the technical field of blood transfusion apparatuses. The regulator comprises an outer cylinder and an inner core; the inner core is arranged in the outer cylinder in a sliding mode, the shaft rod drives the inner core to slide, the inflow grooves with different depths and the input pipe form a channel, and therefore the blood transfusion speed is changed. The end of the shaft rod is connected with a pointer through a gear set, and the pointer can rotate synchronously to display the blood transfusion speed. The inner core can be driven to move in the outer barrel, so that the relative position of the input pipe and the inflow groove is changed, the input pipe is matched with the inflow groove sections with different depths, and the blood transfusion speed is adjusted. Meanwhile, the gear set is arranged at the end of the shaft rod, the pointer is driven by the gear set to rotate to display the blood transfusion speed, and medical staff can obtain the blood transfusion speed more clearly and visually.

Description

Technical Field

[0001] This utility model relates to the field of blood transfusion device technology, specifically to a visual constant-speed blood transfusion device. Background Technology

[0002] Currently, conventional saline infusion sets are used for clinical blood transfusions, and regulations stipulate that the transfusion rate should generally be 5–10 mL / min. In cases of acute massive blood loss requiring rapid transfusion, the rate can reach 50–100 mL / min. For the elderly, frail, infants, and those with pulmonary dysfunction, the transfusion rate should be slower, at 1–2 mL / min. The principle of starting slowly and then increasing the rate should be followed; for the first 15 minutes of transfusion, the rate should be slow (2 mL / min) and the patient's condition closely monitored. If no adverse reactions occur, the rate can be adjusted as needed. Conventional infusion sets cannot accurately control the infusion rate. Existing blood transfusion sets can adjust the transfusion rate, but the adjustment is not visually displayed, making it inconvenient for medical staff to control the transfusion rate. Therefore, this invention provides a visually controlled, rate-regulating blood transfusion set. Utility Model Content

[0003] The purpose of this invention is to provide a visual constant-rate blood transfusion device.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows:

[0005] A visual constant-rate blood transfusion device includes: an adjuster; the adjuster includes an outer cylinder and an inner core; the outer cylinder is provided with an input tube and an output tube; the input tube is located at the top of the outer cylinder and communicates with the interior of the outer cylinder; the output tube is located at the bottom of the outer cylinder, communicates with the interior of the outer cylinder, and is positioned corresponding to the input tube.

[0006] The inner core is slidably disposed inside the outer cylinder and is sealed to the outer cylinder; the inner core has an inflow groove at the top and an outflow groove at the bottom; the depth of the inflow groove gradually increases from the first end to the second end; the depth of the outflow groove remains consistent throughout; the inner core has an annular connecting groove at the second end of the inflow groove; the annular connecting groove communicates with the inflow groove and the outflow groove; the input pipe communicates with the inflow groove; the output pipe communicates with the outflow groove.

[0007] The outer cylinder is provided with a rotatable shaft; both ends of the shaft extend to the outside of the outer cylinder and the surface is provided with threads; the center hole of the inner core is threadedly connected to the shaft; a limit rod is provided inside the outer cylinder; the limit rod cooperates with a limit hole opened on the end face of the inner core to prevent the inner core from rotating relative to the outer cylinder;

[0008] The shaft has a rotating handle at its first end and a first gear at its second end; a second gear, rotatably connected to the outer cylinder, meshes with one side of the first gear; a first helical gear is concentrically arranged on one side of the second gear; the first helical gear meshes with a second helical gear rotatably arranged on the side of the outer cylinder; a third gear is concentrically arranged on one side of the second helical gear; the third gear meshes with a fourth gear rotatably arranged on the side of the outer cylinder; a pointer is concentrically arranged and rotates synchronously with the fourth gear on its side; a graduated dial is arranged on the side of the outer cylinder; the dial and the pointer are correspondingly arranged.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme, the rotating handle is circular and has anti-slip protrusions around its perimeter.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme, the depth of the outflow channel is the same as the depth of the deepest part of the inflow channel.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme, an outer cover is provided on the outer cylinder; the outer cover has a cylindrical structure, is adapted to and connected to the dial, and covers the outside of each gear.

[0012] Based on the above scheme and as a preferred embodiment of the above scheme, the outer cylinder is made of a transparent material.

[0013] The beneficial effects of this invention are as follows: By rotating the handle, the inner core and outer cylinder can be moved to change the relative position of the input tube and the inflow groove, thereby enabling the input tube to cooperate with inflow groove segments of different depths and thus adjusting the blood transfusion rate. Simultaneously, a gear set is provided at the end of the shaft, which drives the pointer to rotate, displaying the blood transfusion rate and allowing medical personnel to obtain the transfusion rate more clearly and intuitively. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the outer cylinder after it has been cut open.

[0016] Figure 3 This is a schematic diagram of the inner core structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the mating structure of the outer cylinder and inner core of this utility model.

[0018] Figure 5 This is a schematic diagram of the gear set structure of this utility model.

[0019] In the diagram: 1. Outer cylinder; 2. Inner core; 3. Input pipe; 4. Output pipe; 5. Inflow groove; 6. Outflow groove; 7. Shaft; 8. Limiting rod; 9. Annular connecting groove; 10. Rotating handle; 11. First gear; 12. Second gear; 13. First helical gear; 14. Second helical gear; 15. Third gear; 16. Fourth gear; 17. Pointer; 18. Dial; 19. Outer cover. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] like Figure 1 and Figure 2 As shown, a visual constant-rate blood transfusion device includes: an regulator, which comprises an outer cylinder 1 and an inner core 2. The outer cylinder 1 has a cylindrical structure and is provided with an input tube 3 and an output tube 4. The input tube 3 is located at the top of the outer cylinder 1 and communicates with the interior of the outer cylinder 1. The output tube 4 is located at the bottom of the outer cylinder 1, communicates with the interior of the outer cylinder 1, and is positioned corresponding to the input tube 3. Preferably, the outer cylinder 1 is made of a transparent material to facilitate observation of the interior.

[0022] The inner core 2 is slidably disposed inside the outer cylinder 1 and is sealed to the outer cylinder 1 to ensure that blood does not flow into the gap between the two.

[0023] like Figure 3 and Figure 4 As shown, the inner core 2 has an inflow groove 5 at the top and an outflow groove 6 at the bottom. The depth of the inflow groove 5 gradually increases from its first end to its second end, while the depth of the outflow groove 6 remains consistent throughout. Simultaneously, the inner core 2 has an annular connecting groove 9 at the second end of the inflow groove 5, which communicates with both the inflow groove 5 and the outflow groove 6, allowing blood to flow from the inflow groove 5 into the outflow groove 6. The input pipe 3 communicates with the inflow groove 5, and the output pipe 4 communicates with the outflow groove 6. Blood flows in through the input pipe 3, passes sequentially through the inflow groove 5, the annular connecting groove 9, and the outflow groove 6, and then flows out through the output pipe 4. Preferably, the depth of the outflow groove 6 is the same as the deepest point of the inflow groove 5 to ensure the outflow velocity.

[0024] A rotatable shaft 7 is located at the center of the outer cylinder 1, with both ends extending to the outside of the outer cylinder 1 and having threads on its surface. The inner core 2 has a central opening that threadedly engages with the shaft 7. A limiting rod 8 is located inside the outer cylinder 1, engaging with a limiting hole on the end face of the inner core 2 to prevent the inner core 2 from rotating relative to the outer cylinder 1. Rotating the shaft 7 allows the inner core 2 to slide within the outer cylinder 1, changing the relative position between the infusion tube 3 and the inflow groove 5, thereby adjusting the transfusion rate.

[0025] The shaft 7 has a rotating handle 10 at one end and a first gear 11 at the other end. The rotating handle 10 facilitates the rotation of the shaft by medical personnel. Preferably, the rotating handle 10 is circular and has anti-slip protrusions around its perimeter.

[0026] like Figure 5 As shown, a second gear 12, rotatably connected to the outer cylinder 1, meshes with one side of the first gear 11. A first helical gear 13 is concentrically arranged on the side of the second gear 12. The first helical gear 13 meshes with a second helical gear 14 rotatably arranged on the side of the outer cylinder 1. A third gear 15 is concentrically arranged on the side of the second helical gear 14. The third gear 15 meshes with a fourth gear 16 rotatably arranged on the side of the outer cylinder 1. A pointer 17, concentrically arranged and rotating synchronously with the fourth gear 16, is arranged on the side of the fourth gear 16. Simultaneously, a graduated dial 18 is arranged on the side of the outer cylinder 1, corresponding to the pointer 17. When the shaft 7 rotates, the gear set drives the pointer 17 to rotate synchronously, causing it to point to different graduations, allowing medical personnel to more clearly and intuitively obtain the transfusion rate.

[0027] An outer cover 19 is provided on the outer cylinder 1. The outer cover 19 has a cylindrical structure and is adapted to and connected to the circular dial 18. The outer cover 19 covers the outside of each gear to provide isolation and protection. The outer cover 19 and the outer cylinder 1 form a T-shaped structure, which is easier for medical staff to hold compared to a cylindrical structure. Especially when rotating the shaft 7, the grip is more convenient and secure, reducing the probability of slippage and improving work efficiency.

[0028] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A visual constant rate blood transfusion device, characterized in that, The utility model provides a kind of regulator, including: Regulator;The regulator includes outer tube (1) and inner core (2); Input pipe (3) and output pipe (4) are provided on the outer tube (1);The input pipe (3) is arranged on the top of the outer tube (1), and is communicated with the inside of the outer tube (1);The output pipe (4) is arranged on the bottom of the outer tube (1), and is communicated with the inside of the outer tube (1), and the position corresponds with the input pipe (3); The inner core (2) is slidably arranged in the inside of the outer tube (1), and is sealingly connected with the outer tube (1);The inner core (2) is provided with inflow groove (5) on top, and is provided with outflow groove (6) on bottom;The depth of the inflow groove (5) gradually increases from first end to second end;The depth of the outflow groove (6) is consistent everywhere;The inner core (2) is provided with annular connecting groove (9) at the second end of the inflow groove (5);The annular connecting groove (9) is communicated with the inflow groove (5) and the outflow groove (6);The input pipe (3) is communicated with the inflow groove (5);The output pipe (4) is communicated with the outflow groove (6); Rotatable shaft (7) is arranged in the inside of the outer tube (1);The both ends of the shaft (7) extend to the outside of the outer tube (1), and the surface is provided with screw thread;The inner core (2) center hole is threadedly connected with the shaft (7);Limiting rod (8) is arranged in the outer tube (1);The limiting rod (8) is matched with the limiting hole arranged on the end face of the inner core (2) to realize that the inner core (2) cannot rotate relative to the outer tube (1); The first end of the shaft (7) is provided with rotating handle (10), and the second end is provided with first gear (11);The first gear (11) is engaged with second gear (12) rotatably connected with the outer tube (1) on one side;The second gear (12) is concentrically provided with first helical gear (13) on one side;The first helical gear (13) is engaged with second helical gear (14) rotatably arranged on the side surface of the outer tube (1);The second helical gear (14) is concentrically provided with third gear (15) on one side;The third gear (15) is engaged with fourth gear (16) rotatably arranged on the side surface of the outer tube (1);The side surface of the fourth gear (16) is provided with pointer (17) concentrically arranged and synchronously rotated therewith;The side surface of the outer tube (1) is provided with dial (18) with scale;The dial (18) is correspondingly arranged with the pointer (17).

2. A visual constant flow blood transfusion device according to claim 1, wherein The rotating handle (10) is circular, and anti-skid protrusions are arranged on the periphery.

3. A visual constant flow blood transfusion device according to claim 1, wherein The depth of the outflow groove (6) is the same as the depth of the deepest part of the inflow groove (5).

4. The visual constant flow blood transfusion device according to claim 1, wherein The outer tube (1) is provided with outer cover (19);The outer cover (19) is in cylindrical structure, is matched with the dial (18) and is connected, and is covered outside each gear.

5. The visual constant flow blood transfusion device according to claim 1, wherein The outer tube (1) is made of transparent material.

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