Structure for preventing liquid backflow in using process of infusion pump caused by human factors

Abstract

The utility model relates to the technical field of infusion pumps, in particular to a structure for preventing liquid backflow in the using process of an infusion pump caused by human reasons, which comprises a bedroom infusion pump main body, an infusion tube arranged in the bedroom infusion pump main body and a positioning groove formed in the bedroom infusion pump main body, and further comprises a positioning component, a liquid outlet component and a liquid outlet component, the positioning assembly is located in the positioning groove and located on the outer side of the infusion tube, the positioning assembly is used for positioning the infusion tube in the bedroom infusion pump body, the positioning assembly is composed of a connecting block, an infusion tube containing groove, a rotating block, a limiting block and a compression spring, and the connecting block is located in the positioning groove and located on the outer side of the infusion tube; compared with an existing infusion pump, the infusion pump has the advantage that the overall safety of the infusion pump can be improved through the design.

Description

Technical Field

[0001] The utility model relates to the technical field of infusion pumps, in particular to a structure for preventing liquid backflow during the use of an infusion pump caused by human factors. Background Art

[0002] As a common clinical treatment method, infusion pumps are used to inject drugs or medicines into patients and have been widely used in various fields of medical practice. During the use of bedroom infusion pumps, due to the negligence of nursing staff, the infusion tube buried in the infusion pump is reversed, causing the liquid to flow back, resulting in adverse events such as the patient's blood being withdrawn. Therefore, it is particularly important to improve the existing infusion pumps and design a new structure to prevent liquid backflow during the use of the infusion pump due to human factors to solve the above-mentioned technical defects and improve the overall safety of the infusion pump. Utility Model Content

[0003] The purpose of the utility model is to provide a structure to prevent liquid backflow during the use of an infusion pump due to human factors. The structure can position the infusion tube inside the bedroom infusion pump body through a positioning component, preventing the infusion tube buried in the bedroom infusion pump body from being reversed in direction and causing liquid backflow, resulting in adverse events such as patient blood being drawn back, thereby improving the overall safety of the use of the infusion pump to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A structure for preventing liquid backflow during use of an infusion pump due to human factors, comprising a bedroom infusion pump body, an infusion tube is arranged inside the bedroom infusion pump body, and a positioning groove is opened inside the bedroom infusion pump body, and further comprising:

[0006] A positioning component, the positioning component is located inside the positioning groove and outside the infusion tube, and the positioning component is used to position the infusion tube inside the bedroom infusion pump body, the positioning component is composed of a connecting block, an infusion tube accommodating groove, a rotating block, a limit block, and a compression spring, the connecting block is located inside the positioning groove and outside the infusion tube, the infusion tube accommodating groove is opened inside the connecting block, the two groups of the rotating blocks are both rotatably connected to the middle outer side of the arrow handle of the connecting block, the two groups of the limit blocks are both rotatably connected to the inside of the connecting block, and the compression spring is located between the limit block and the rotating block and inside the connecting block.

[0007] As a preferred solution of the utility model, the external structure size of the connection block is designed to correspond to the internal structure size of the positioning groove, and the connection block is connected to the bedroom infusion pump body through the positioning groove.

[0008] As a preferred solution of the utility model, the internal structure size of the infusion tube receiving groove is designed to correspond to the external structure size of the infusion tube, and the infusion tube is connected to the connecting block through the infusion tube receiving groove.

[0009] As a preferred solution of the utility model, two groups of clamping grooves are provided inside the positioning groove and on the outside of the connecting block, and a groove is provided on the outside of the clamping groove and on the outside of the positioning groove.

[0010] As a preferred solution of the utility model, the rotating block and the limit block are both provided with a protrusion at one end close to the compression spring, the external structure size of the protrusion is designed to correspond to the internal structure size of the compression spring, the rotating block and the limit block are both connected to the compression spring through the protrusion, and two groups of resistance members are provided inside the connecting block and close to one end of the compression spring.

[0011] As a preferred solution of the utility model, a pull ring is provided on the outer side of the connecting block, and the pull ring extends to the inside of the connecting block and is rotatably connected to a driving rod, and one end of the driving rod away from the pull ring is rotatably connected to the limit block.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, through the design of the positioning component, when the bedroom infusion pump body is in use, the positioning component can position the infusion tube inside the bedroom infusion pump body, preventing the infusion tube buried in the bedroom infusion pump body from being reversed in direction and causing liquid backflow, resulting in adverse events such as the patient's blood being drawn back. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the positioning component of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the connection block of the utility model;

[0017] Figure 4 For this utility model Figure 1 A is a schematic diagram of the enlarged structure;

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the positioning groove of the utility model;

[0019] Figure 6 For this utility model Figure 3 Middle B is a magnified schematic diagram of the internal structure.

[0020] In the figure: 1. bedroom infusion pump body; 2. positioning groove; 3. positioning assembly; 4. connecting block; 5. infusion tube accommodating groove; 6. rotating block; 7. limiting block; 8. compression spring; 9. snap-in groove; 10. pull ring; 11. driving rod; 12. blocking member; 13. protrusion; 14. groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Example

[0022] See also Figure 1-Figure 6 , the utility model provides a technical solution:

[0023] The invention comprises a bedroom infusion pump body 1, an infusion tube is arranged inside the bedroom infusion pump body 1, and a positioning groove 2 is opened inside the bedroom infusion pump body 1, and further comprises:

[0024] Positioning assembly 3, the positioning assembly 3 is located inside the positioning groove 2 and outside the infusion tube, and the positioning assembly 3 is used to position the infusion tube inside the bedroom infusion pump body 1. The positioning assembly 3 consists of a connecting block 4, an infusion tube receiving groove 5, a rotating block 6, a limiting block 7, a compression spring 8, a clamping groove 9, a pull ring 10, and a driving rod 11. The connecting block 4 is located inside the positioning groove 2 and outside the infusion tube, the infusion tube receiving groove 5 is opened inside the connecting block 4, the two groups of rotating blocks 6 are both rotatably connected to the middle outer side of the arrow handle of the connecting block 4, the two groups of limiting blocks 7 are both rotatably connected to the inside of the connecting block 4, the compression spring 8 is located between the limiting block 7 and the rotating block 6 and inside the connecting block 4, and the clamping groove 9, the pull ring 10, the driving rod 11, and the blocking member 12 are designed in the 2 positioning grooves of the bedroom infusion pump body 1 to facilitate the installation, fixing and removal of the assembly. The blocking member 12 has a certain elasticity. When the rotating block 6 is installed, the elasticity of the blocking member 12 can prevent the installation of the rotating block 6 from being affected. When the bedroom infusion pump body 1 is in use, the infusion tube can be positioned inside the bedroom infusion pump body 1 through the positioning component 3 to prevent the infusion tube from being buried in the bedroom infusion pump body 1 and reversing its direction, causing the liquid to flow back, resulting in adverse events such as the patient's blood being drawn back.

[0025] Among them, the external structure size of the connecting block 4 is designed to correspond to the internal structure size of the positioning groove 2, and the connecting block 4 is connected to the bedroom infusion pump body 1 through the positioning groove 2. The connecting block 4 is an integrated structure design, and the connecting block 4 is an arrow structure design. The connecting block 4 is connected to the positioning groove 2, so that the connecting block 4 can be connected to the bedroom infusion pump body 1.

[0026] Secondly, the internal structure size of the infusion tube receiving groove 5 is designed to correspond to the external structure size of the infusion tube. The infusion tube is connected to the connecting block 4 through the infusion tube receiving groove 5. The infusion tube is connected to the infusion tube receiving groove 5 so that the infusion tube can be connected to the connecting block 4. The infusion tube can be positioned inside the positioning groove 2 through the connecting block 4.

[0027] Furthermore, two groups of clamping grooves 9 are provided inside the positioning groove 2 and outside the connecting block 4. The internal structure size of the clamping groove 9 is designed to correspond to the external structure size of the rotating block 6. A pull ring 10 is provided on the outside of the connecting block 4. The pull ring 10 extends to the inside of the connecting block 4 and is rotatably connected to a driving rod 11. The end of the driving rod 11 away from the pull ring 10 is rotatably connected to the limiting block 7. The rotating block 6 and the limiting block 7 are both provided with a protrusion 13 at one end close to the compression spring 8 to fix the compression spring 8. The rotating block 6 and the limiting block 7 are both connected to the compression spring 8 through the protrusion 13. The external structure size of the protrusion 13 is designed to correspond to the internal structure size of the compression spring 8. When the rotating block 6 is connected to the clamping groove 9, the compression spring 8 cooperates with the limiting block 7 to drive the rotating block 6 to rotate, and the rotating block 6 is limited inside the clamping groove 9, so that it can be limitedly connected with the positioning groove 2. When the rotating block 6 is taken out from the clamping groove 9 , the pull ring 10 is pulled to link the driving rod 11 , the limit block 7 , the compression spring 8 , and one end of the spring of the rotating block 6 is clamped in the component 12 and retracted into the connecting block 4 .

[0028] Finally, the rotating block 6 adopts a trapezoidal design. When in use, the positioning component 3 can be directly pressed into the positioning groove 2, or the pull ring 10 can be gently pulled to make the rotating block 6 slightly retracted into the connecting block 4 and then the component can be pressed into the positioning groove 2; when the connecting block 4 needs to be moved out of the inner position of the positioning groove 2, the pull ring 10 is pulled to drive the driving rod 11 to move, so that the limit block 7 connected to it can rotate, drive the rotating block 6 to rotate, and the connecting block 6 is successively stuck in the two gears of the blocking member 12, and the rotating block 6 is moved out of the inner position of the clamping groove 9 and moved to the inside of the connecting block 4, so that the connecting block 4 can be moved out of the inner position of the positioning groove 2. In order to facilitate the removal of the component, a humanized groove 14 is designed around the positioning groove 2, and its depth is shallower than the depth of the clamping groove 2. After the positioning component 3 is installed in the positioning groove 2, part of the body of the positioning component 3 can be seen through this recess, so as to prevent the pull ring 10 from failing and causing the component to be stuck in the positioning groove 2 and unable to be removed, affecting the use of the equipment. With this exposed body, the component 3 can be easily removed with tools.

[0029] In this embodiment, the implementation scenario is specifically as follows: in actual use, the connection block 4 is moved to the inside of the positioning groove 2, and the rotation block 6 is driven to rotate by the compression spring 8 and the limit block 7, and the rotation block 6 is limited in the inside of the clamping groove 9, so that it can be limitedly connected with the positioning groove 2, and the infusion tube is limited. The connection block 4 is designed in an arrow structure to prevent the infusion tube from being buried in the bedroom in the infusion pump body 1. The direction is reversed so that the liquid flows back, causing the patient's blood to be withdrawn. The adverse event, at present, the infusion pump on the market only has a picture mark for the infusion direction, which is easily ignored by medical staff. There is no monitoring and prompt for the flow direction of the liquid in the infusion tube being infused. If the infusion tube is inverted, it is very difficult for medical staff to find it. Finally, when the patient's blood is withdrawn, they realize that the problem causes adverse events or even medical accidents and disputes between doctors and patients. Compared with the existing infusion pump, the design of the utility model can improve the overall safety of the infusion pump, and the use of a low-cost and ingenious design can avoid the adverse events of the infusion direction being reversed due to improper operation, sloppy checking, and untimely inspection by medical staff.

[0030] 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 structure for preventing liquid backflow during use of an infusion pump due to human factors, comprising a bedroom infusion pump body (1), an infusion tube is arranged inside the bedroom infusion pump body (1), and a positioning groove (2) is opened inside the bedroom infusion pump body (1), characterized in that: Also includes: A positioning assembly (3), wherein the positioning assembly (3) is located inside the positioning groove (2) and outside the infusion tube, and the positioning assembly (3) is used to position the infusion tube inside the bedroom infusion pump body (1), and the positioning assembly (3) is composed of a connecting block (4), an infusion tube receiving groove (5), a rotating block (6), a limiting block (7), and a compression spring (8), wherein the connecting block (4) is located inside the positioning groove (2) and outside the infusion tube, the infusion tube receiving groove (5) is opened inside the connecting block (4), the two groups of the rotating blocks (6) are both rotatably connected to the middle outer side of the arrow handle of the connecting block (4), the two groups of the limiting blocks (7) are both rotatably connected to the inside of the connecting block (4), and the compression spring (8) is located between the limiting block (7) and the rotating block (6) and inside the connecting block (4).

2. A structure for preventing liquid backflow during use of an infusion pump due to human factors according to claim 1, characterized in that: The external structure size of the connection block (4) is designed to correspond to the internal structure size of the positioning groove (2), and the connection block (4) is connected to the bedroom infusion pump body (1) via the positioning groove (2).

3. The structure for preventing liquid backflow during use of an infusion pump caused by human factors according to claim 1, characterized in that: The internal structure size of the infusion tube receiving groove (5) is designed to correspond to the external structure size of the infusion tube, and the infusion tube is connected to the connection block (4) via the infusion tube receiving groove (5).

4. The structure for preventing liquid backflow during use of an infusion pump caused by human factors according to claim 1, characterized in that: Two groups of clamping grooves (9) are provided inside the positioning groove (2) and on the outside of the connecting block (4), and grooves (14) are provided on the outside of the clamping grooves (9) and on the outside of the positioning groove (2).

5. The structure for preventing liquid backflow during use of an infusion pump caused by human factors according to claim 1, characterized in that: The rotating block (6) and the limiting block (7) are both provided with a protrusion (13) at one end close to the compression spring (8); the external structure size of the protrusion (13) is designed to correspond to the internal structure size of the compression spring (8); the rotating block (6) and the limiting block (7) are both connected to the compression spring (8) via the protrusion (13); and two groups of resistance members (12) are provided inside the connecting block (4) and at one end close to the compression spring (8).

6. The structure for preventing liquid backflow during use of an infusion pump due to human factors according to claim 1, characterized in that: A pull ring (10) is provided on the outside of the connection block (4), and the pull ring (10) extends to the inside of the connection block (4) and is rotatably connected to a driving rod (11), and one end of the driving rod (11) away from the pull ring (10) is rotatably connected to a limit block (7).

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