Auxiliary tube cleaning device of infusion tube for hemodialysis instrument

By designing an auxiliary pipe cleaning device with a motor-driven movable ring and a fixed ring, the problem of difficult blood residue on the inner wall of the infusion tube is solved, and efficient cleaning of blood in the infusion tube is achieved, and the efficiency and safety of the dialyzer are improved.

CN223170076UActive Publication Date: 2025-08-01MEI HOSPITAL UNIV OF CHINESE ACAD OF SCI
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Patent Information

Application Number
CN202421539502.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-01
Publication Date
2025-08-01
Estimated Expiration
2034-07-01

AI Technical Summary

Technical Problem

In the hemodialyzer, it is difficult to clean the remaining blood on the inner wall of the infusion tube, which affects the treatment effect and increases the difficulty of cleaning.

Method used

An auxiliary pipe cleaning device including a mounting plate, a mounting ring, a movable ring and a fixed ring is designed. The movable ring is moved within the infusion tube through a motor drive transmission system, and the movable ring collides with the inner wall of the infusion tube to vibrate and remove residual blood.

Benefits of technology

Effectively reduce blood residue in the infusion tube, reduce the difficulty of cleaning, improve the success rate of dialysis, and reduce the probability of dialysis accidents.

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Abstract

The utility model discloses an auxiliary tube cleaning device of infusion tube for hemodialysis instrument, including mounting plate, mounting ring, movable ring and fixed ring, mounting ring fixed connection on mounting plate, movable ring is provided on mounting ring, fixed ring is located below mounting ring, movable ring can move in mounting ring, infusion tube passes through in movable ring and fixed ring, fixed ring is fixed in the fixed ring, fixed ring is fixed in the fixed ring, fixed ring is fixed in the fixed ring, fixed ring is fixed in the fixed ring, fixed ring is fixed in the fixed ring, fixed ring is fixed in the fixed ring, fixed ring is fixed in the fixed ring, fixed ring is fixed in the fixed ring. When the movable ring moves, the inner wall collides with the infusion tube; according to the infusion tube, blood residues in the infusion tube can be effectively reduced.
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Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and particularly relates to an auxiliary pipe cleaning device for an infusion tube of a hemodialysis instrument. Background Art

[0002] Renal dialysis is an important method for treating kidney diseases. An important step in implementing renal dialysis is to filter and purify the blood. Blood purification is also called dialysis in daily life. It is to draw the patient's blood out of the body and pass it through a purification device to remove certain pathogenic substances and purify the blood to achieve the purpose of treating diseases. Currently, patients are generally purified by a hemodialysis instrument.

[0003] When using a hemodialysis instrument to purify a patient's blood, the patient's blood and dialysis fluid flow through both sides of the dialysis membrane inside the filtration component on the hemodialysis instrument at the same time. By means of the concentration difference and pressure difference on both sides of the membrane, toxins are removed through diffusion, convection and adsorption. When the blood flows through the infusion tube, part of the blood will adhere to the inner wall of the infusion tube, and the blood cannot fully flow back, resulting in difficulties in cleaning the infusion tube and having a certain impact on the patient at the same time. Content of the Utility Model

[0004] This part of the content of the present application is used to briefly introduce the concepts, which will be described in detail in the following specific implementation part. This part of the content of the present application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0005] The utility model provides an auxiliary pipe cleaning device for an infusion tube of a hemodialysis instrument to overcome the deficiencies of the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions: an auxiliary pipe cleaning device for an infusion tube of a hemodialysis instrument, including a mounting plate, a mounting ring, a movable ring and a fixed ring. The mounting ring is fixedly connected to the mounting plate, the movable ring is arranged on the mounting ring, the fixed ring is located below the mounting ring, the movable ring can move within the mounting ring, and the infusion tube passes through the movable ring and the fixed ring. When the movable ring moves, its inner wall collides with the infusion tube.

[0007] Further, a plurality of first connection blocks are arranged on the movable ring, and corresponding connection grooves are arranged on the inner wall of the mounting ring. The first connection blocks are inserted into the connection grooves.

[0008] Further, a first movable cavity communicating with the connection groove is arranged on the mounting ring. A first rotating ring is arranged in the first movable cavity. First convex blocks are arranged on the inner wall of the first rotating ring, and a plurality of elastic arc plates are arranged on the inner wall of the mounting ring.

[0009] Further, a second connecting block is provided on the mounting ring. The second connecting block is fixedly connected to the mounting plate. A first transmission cavity is provided on the second connecting block. A transmission wheel cooperating with the first rotating ring is provided in the first transmission cavity. A motor is provided at the bottom of the second connecting block. The transmission wheel is connected to the output shaft of the motor.

[0010] Further, a groove is provided on the first connecting block. A first movable groove is provided on the side wall of the groove. A movable rod is provided in the first movable groove. The first convex block is on the same horizontal plane as the groove.

[0011] Further, a second movable cavity communicating with the first movable groove is provided on the movable ring. A second rotating ring is provided in the second movable cavity. A guide block is provided on the second rotating ring. The side wall of the guide block is inclined; A push block is provided on the second rotating ring. The push block penetrates out of the second movable cavity.

[0012] Further, a second movable groove is provided on the fixed ring. A fixing rod moving along the inner wall of the second movable groove is provided in the second movable groove.

[0013] Further, a first connecting rod is provided on the fixed ring. A third movable cavity communicating with the second movable groove is provided on the first connecting rod. A transmission rod is provided on the fixing rod. The transmission rod is in the third movable cavity; A second convex block is provided on the first connecting rod. A second transmission cavity communicating with the third movable cavity is provided on the second convex block. A transmission shaft cooperating with the transmission rod is provided through the second transmission cavity. Both ends of the transmission shaft are outside the second transmission cavity. Knobs are respectively provided at both ends of the transmission shaft.

[0014] Further, a second connecting rod is provided on the first connecting rod. A third movable groove for the second connecting rod to move is provided on the mounting plate. A slider is provided on the second connecting rod. A chute for the slider to move is provided on the inner wall of the third movable groove.

[0015] Further, a fourth movable groove is provided on the second connecting rod. A fixing block is provided in the fourth movable groove. A fourth movable cavity communicating with the fourth movable groove is provided on the second connecting rod. A third connecting rod is hinged to the fixing block. The other end of the third connecting rod is hinged to a connecting plate. A return spring and a fourth connecting rod are provided on the connecting plate. A push rod is provided on the fourth connecting rod. The push rod penetrates out of the fourth movable cavity. A push plate is provided at one end of the push rod.

[0016] The beneficial effect of the present utility model is: to provide an auxiliary pipe cleaning device for an infusion tube of a hemodialysis instrument, which can reduce the blood residue in the infusion tube and lower the difficulty of cleaning the infusion tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings forming a part of this application are used to provide a further understanding of this application, making other features, objectives, and advantages of this application more obvious. The schematic embodiments and descriptions of the drawings of this application are used to explain this application and do not constitute an improper limitation to this application.

[0018] In addition, throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic and the elements and components are not necessarily drawn to scale.

[0019] In the drawings:

[0020] Figure 1 is a schematic structural diagram of an auxiliary pipe cleaning device for an infusion tube of a hemodialysis instrument in an embodiment of the present utility model.

[0021] Figure 2 is Figure 1 an overall cross-sectional view of the auxiliary pipe cleaning device for the infusion tube of the hemodialysis instrument in the illustrated embodiment.

[0022] Figure 3 is Figure 2 an enlarged view of part A in

[0023] Figure 4 is Figure 1 a cross-sectional view of the mounting ring of the auxiliary pipe cleaning device for the infusion tube of the hemodialysis instrument in the illustrated embodiment.

[0024] Figure 5 is Figure 4 an enlarged view of part B in

[0025] Figure 6 is Figure 1 a cross-sectional view of the mounting plate of the auxiliary pipe cleaning device for the infusion tube of the hemodialysis instrument in the illustrated embodiment.

[0026] Figure 7 is Figure 6 an enlarged view of part C in

[0027] The meanings of the reference numerals in the drawings are as follows:

[0028] 101, mounting plate; 1011, chute; 102, mounting ring; 103, second connecting block; 10, movable ring; 105, first connecting block; 106, elastic arc piece; 107, push block; 108, fixed ring; 109, first connecting rod; 110, second connecting rod; 111, fixed rod; 1111, transmission plate; 112, second convex block; 113, transmission shaft; 1131, knob; 114, push rod; 1141, push plate; 115, motor; 116, transmission wheel; 117, fourth connecting rod; 118, first rotating ring; 1181, first convex block; 119, fixed block; 120, movable rod; 121, second rotating ring; 1211, guide block; 1222, third connecting rod; 123, connecting plate; 124, return spring. Detailed implementation manners

[0029] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0030] In addition, it should be noted that for the sake of convenience of description, only the parts related to the utility model are shown in the drawings. Without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0031] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependent relationships.

[0032] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly specified in the context, it should be understood as "one or more".

[0033] The names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are only for illustrative purposes and are not used to limit the scope of these messages or information.

[0034] The present disclosure will be described in detail below with reference to the drawings and in combination with the embodiments.

[0035] As Figure 1-7 shown, an auxiliary pipe cleaning device for an infusion tube of a hemodialysis instrument includes a mounting plate 101, a mounting ring 102, a movable ring 104 and a fixing ring 108. The mounting ring 102 is fixedly connected to the mounting plate 101. The movable ring 104 is arranged on the mounting ring 102. The fixing ring 108 is located below the mounting ring 102. The movable ring 104 can move within the mounting ring 102. The infusion tube passes through the movable ring 104 and the fixing ring 108. When the movable ring 104 moves, the inner wall collides with the infusion tube.

[0036] A plurality of first connection blocks 105 are provided on the movable ring 104. Corresponding connection grooves are provided on the inner wall of the mounting ring 102. The first connection blocks 105 are inserted into the connection grooves. A first movable cavity communicating with the connection grooves is provided on the mounting ring 102. A first rotating ring 118 is provided in the first movable cavity. A first convex block 1181 is provided on the inner wall of the first rotating ring 118. A plurality of elastic arc pieces 106 are provided on the inner wall of the mounting ring 102.

[0037] The mounting ring 102 is provided with a second connecting block 103. The second connecting block 103 is fixedly connected to the mounting plate 101. The mounting ring 102 is fixedly connected to the mounting plate 101 through the second connecting block 103. The second connecting block 103 is provided with a first transmission cavity. A transmission wheel 116 that cooperates with the first rotating ring 118 is arranged in the first transmission cavity. A motor 115 is arranged at the bottom of the second connecting block 103. The transmission wheel 116 is connected to the output shaft of the motor 115.

[0038] The first connecting block 105 is provided with a groove. A first movable groove is arranged on the side wall of the groove. A movable rod 120 is arranged in the first movable groove. The first convex block 1181 is on the same horizontal plane as the groove, that is, when the movable ring 104 rotates, the first convex block 1181 will pass through the groove without contacting the first connecting block 105.

[0039] The movable ring 104 is provided with a second movable cavity communicating with the first movable groove. A second rotating ring 121 is arranged in the second movable cavity. A guide block 1211 is arranged on the second rotating ring 121. The side wall of the guide block 1211 is inclined; A push block 107 is arranged on the second rotating ring 121. The push block 107 passes through the second movable cavity. The push block 107 is at the top of the movable ring 104.

[0040] The fixed ring 108 is provided with a second movable groove. A fixed rod 111 capable of moving along the inner wall of the second movable groove is arranged in the second movable groove.

[0041] The fixed ring 108 is provided with a first connecting rod 109. A third movable cavity communicating with the second movable groove is arranged on the first connecting rod 109. A transmission rod is arranged on the fixed rod 111. The transmission rod is in the third movable cavity; A second convex block 112 is arranged on the first connecting rod 109. A second transmission cavity communicating with the third movable cavity is arranged on the second convex block 112. A transmission shaft 113 that cooperates with the transmission rod is arranged in the second transmission cavity. Both ends of the transmission shaft 113 are outside the second transmission cavity. Knobs 1131 are respectively arranged at both ends of the transmission shaft 113.

[0042] A second connecting rod 110 is arranged on the first connecting rod 109. A third movable groove for the second connecting rod 110 to move is arranged on the mounting plate 101. A slider is arranged on the second connecting rod 110. A sliding groove 1011 for the slider to move is arranged on the inner wall of the third movable groove.

[0043] The second connecting rod 110 is provided with a fourth movable groove, and a fixing block 119 is arranged in the fourth movable groove. One end of the fixing block 119 is attached with a rubber film, and the rubber film abuts against the inner wall of the third movable groove to increase the friction between the second connecting rod 110 and the third movable groove, so as to achieve the purpose of fixing the second connecting rod 110; the second connecting rod 110 is provided with a fourth movable cavity communicating with the fourth movable groove, a third connecting rod 1222 is hinged on the fixing block 119, the other end of the third connecting rod 1222 is hinged with a connecting plate 123, a return spring 124 and a fourth connecting rod 117 are arranged on the connecting plate 123, a push rod 114 is arranged on the fourth connecting rod 117, the push rod 114 passes through the fourth movable cavity, and a push plate 1141 is arranged at one end of the push rod 114. The push plate 1141 is located above the first connecting rod 109.

[0044] The mounting plate 101 is connected to the side wall of the dialysis instrument in the form of a suction cup, glue or double-sided tape; the infusion tube is inserted into the movable ring 104 and the fixed ring 108. The diameters of the movable ring 104 and the fixed ring 108 are larger than the diameter of the infusion tube, and the inner wall of the movable ring 104 does not contact the infusion tube; according to the need, the push block 107 is pushed to move, the push block 107 drives the second rotating ring 121 to rotate, and when the guide block 1211 rotates, it pushes the movable rod 120 to extend into the groove to control the length of the movable rod 120 in the groove; then the push plate 1141 is pressed, the push plate 1141 drives the connecting plate 123 to move so that the fixing block 119 moves into the fourth movable groove, and the first connecting rod 109 is pushed down according to the position where the push block 107 moves, and the distance between the fixed ring 108 and the movable ring 104 is adjusted so that the infusion tube in the movable ring 104 can shake; by rotating the knob 1131, the transmission shaft 113 rotates to drive the transmission rod to move, and the fixed rod 111 moves towards one end of the second movable groove, and the infusion tube is clamped in the fixed ring 108.

[0045] When blood remains on the inner wall of the infusion tube, the motor 115 starts to drive the transmission wheel 116 to rotate. The transmission wheel 116 drives the first rotating ring 118 to rotate. The first convex block 1181 enters the groove and contacts the movable rod 120 to push the first connecting block 105 to move. The movable ring 104 moves relative to the infusion tube and collides with the infusion tube, causing the infusion tube to vibrate and shake off the blood on the inner wall of the infusion tube. After the first convex block 1181 and the movable rod 120 are misaligned, the elastic arc piece 106 pushes the movable ring 104 to reset, causing the movable ring 104 to collide with the infusion tube multiple times. Due to the arrangement of multiple first connecting blocks 105, the movable ring 104 moves in multiple directions and collides with the infusion tube from different positions, effectively shaking off the residue on the inner wall of the infusion tube. The fixed ring 108 fixes the lower end of the infusion tube to prevent the vibration of the infusion tube within the movable ring 104 from affecting the connection between the infusion tube and the patient. At the same time, through the setting of the second rotating ring 121, the moving range of the movable ring 104 is controlled, and then the vibration range of the infusion tube is controlled. Combined with the movement of the fixed ring 108, the normal vibration of the infusion tube is generated to meet various usage situations of the dialysis machine.

[0046] Since the bottom of the infusion tube is clamped and fixed within the fixed ring, when the inner wall of the movable ring collides with the side wall of the infusion tube, the infusion tube will swing around the fixed point of the bottom and the fixed ring, causing the infusion tube to perform a circular motion while vibrating, increasing the cleaning effect on the inner wall of the infusion tube.

[0047] It should be noted that the inner diameter of the movable ring in this application is much larger than the diameter of the infusion tube, enabling the infusion tube to swing within the movable ring. At the same time, this application can also be applied to dialysis machine equipment with multiple infusion tubes. Multiple infusion tubes are inserted into the movable ring at the same time, causing multiple infusion tubes to vibrate.

[0048] Through the setting of this device, the probability of dialysis accidents caused by insufficient medical staff is effectively reduced. Especially during busy medical periods, medical staff can take care of multiple dialysis machines, ensuring that blood flows back from the infusion tube and improving the success rate of dialysis.

[0049] The above description is only some preferred embodiments of the present disclosure and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above technical features. It should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the technical solutions formed by mutually replacing the above features with the (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.

Claims

1. An auxiliary tube cleaning device for an infusion tube of a hemodialysis instrument, characterized in that: It includes a mounting plate, a mounting ring, a movable ring and a fixed ring. The mounting ring is fixedly connected to the mounting plate. The movable ring is arranged on the mounting ring. The fixed ring is located below the mounting ring. The movable ring can move within the mounting ring. An infusion tube passes through the movable ring and the fixed ring. When the movable ring moves, its inner wall collides with the infusion tube.

2. The auxiliary tube cleaning device for the infusion tube of a hemodialysis machine according to claim 1, characterized in that: A plurality of first connection blocks are provided on the movable ring. Corresponding connection grooves are provided on the inner wall of the mounting ring. The first connection blocks are inserted into the connection grooves.

3. The auxiliary tube cleaning device for the infusion tube of a hemodialysis machine according to claim 2, characterized in that: A first movable cavity communicating with the connection groove is provided on the mounting ring. A first rotating ring is provided in the first movable cavity. First convex blocks are provided on the inner wall of the first rotating ring. A plurality of elastic arc-shaped pieces are provided on the inner wall of the mounting ring.

4. The auxiliary pipe cleaning device for the infusion tube of a hemodialysis machine according to claim 3, characterized in that: A second connection block is provided on the mounting ring. The second connection block is fixedly connected to the mounting plate. A first transmission cavity is provided on the second connection block. A transmission wheel cooperating with the first rotating ring is provided in the first transmission cavity. A motor is provided at the bottom of the second connection block. The transmission wheel is connected to the output shaft of the motor.

5. The auxiliary pipe cleaning device for the infusion tube of a hemodialysis machine according to claim 3, characterized in that: A groove is provided on the first connection block. A first movable groove is provided on the side wall of the groove. A movable rod is provided in the first movable groove. The first convex block and the groove are on the same horizontal plane.

6. The auxiliary tube cleaning device for the infusion tube of a hemodialysis machine according to claim 5, characterized in that: A second movable cavity communicating with the first movable groove is provided on the movable ring. A second rotating ring is provided in the second movable cavity. A guide block is provided on the second rotating ring. The side wall of the guide block is inclined. A push block is provided on the second rotating ring. The push block passes out of the second movable cavity.

7. The auxiliary pipe cleaning device for the infusion tube of a hemodialysis machine according to claim 1, characterized in that: A second movable groove is provided on the fixed ring. A fixed rod moving along the inner wall of the second movable groove is provided in the second movable groove.

8. The auxiliary tube cleaning device for the infusion tube of a hemodialysis machine according to claim 7, characterized in that: A first connecting rod is provided on the fixed ring. A third movable cavity communicating with the second movable groove is provided on the first connecting rod. A transmission rod is provided on the fixed rod. The transmission rod is located in the third movable cavity. A second convex block is provided on the first connecting rod. A second transmission cavity communicating with the third movable cavity is provided on the second convex block. A transmission shaft cooperating with the transmission rod is provided in the second transmission cavity. Both ends of the transmission shaft are outside the second transmission cavity. Knobs are respectively provided at both ends of the transmission shaft.

9. The auxiliary pipe cleaning device for the infusion tube of a hemodialysis machine according to claim 8, characterized in that: A second connecting rod is provided on the first connecting rod. A third movable groove for the second connecting rod to move is provided on the mounting plate. A slider is provided on the second connecting rod. A chute for the slider to move is provided on the inner wall of the third movable groove.

10. The auxiliary pipe cleaning device for the infusion tube of a hemodialysis machine according to claim 9, characterized in that: A fourth movable groove is provided on the second connecting rod. A fixed block is provided in the fourth movable groove. A fourth movable cavity communicating with the fourth movable groove is provided on the second connecting rod. A third connecting rod is hinged to the fixed block. The other end of the third connecting rod is hinged to a connecting plate. A return spring and a fourth connecting rod are provided on the connecting plate. A push rod is provided on the fourth connecting rod. The push rod passes out of the fourth movable cavity. A push plate is provided at one end of the push rod.