Quick pre-filling pipe

Abstract

The utility model provides a rapid pre-filling pipe which comprises a first branch pipe, a second branch pipe, a third branch pipe and a fourth branch pipe. The first end of the first branch pipe is suitable for being communicated with a rapid pre-filling liquid container. The first end of the second branch pipe is suitable for being communicated with a drip liquid container; the first end of the third branch pipe is suitable for being communicated with a membrane lung blood storage tank, and the second ends of the first branch pipe, the second branch pipe and the third branch pipe are communicated together to form a three-way node; the first end of the fourth branch pipe is connected to the third branch pipe to form a first node, the second end of the fourth branch pipe is suitable for being communicated with a rapid pre-filling opening of the membrane lung blood storage tank, and a liquid pump is arranged on the fourth branch pipe. The rapid pre-filling tube can complete rapid pre-filling and can also achieve slow drug delivery or drip drug delivery, so that the pre-filling efficiency can be guaranteed to rapidly establish an extracorporeal circulation system, the plasma concentration can not change drastically, and the safety of an operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a rapid pre-filling tube. Background Art

[0002] At present, the extracorporeal circulation technology is quite mature in China. Even so, there are still many details in the extracorporeal circulation process that are slightly different from the international level. In extracorporeal circulation surgery, wet preparation and dry preparation are usually used. Wet preparation is to pre-fill the extracorporeal circulation system before the operation. This is suitable for operations on extremely high-risk patients. Dry preparation is not to pre-fill the extracorporeal circulation system with liquid, and then pre-fill it when it is urgently needed. The above two methods have their own advantages and disadvantages. Wet preparation can ensure the stability of the operation process, but if extracorporeal circulation is not required, it will lead to waste of consumables and drugs. Dry preparation can ensure that consumables and drugs are not wasted, but it may delay the best time for surgery.

[0003] In the prior art, a special rapid priming port is provided on the membrane lung. The conventional priming operation is to use a blood transfusion device to prefill the liquid. The priming speed of this method is slow, which can easily delay the best time for emergency surgery, resulting in that the dry preparation cannot be widely used. Moreover, using this method for priming cannot control the flow rate of the liquid entering the membrane lung, and can only achieve "bolus" drug administration, which will cause drastic changes in blood drug concentration during extracorporeal circulation. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the prior art that the efficiency of pre-filling liquid in a blood transfusion device is slow and the flow rate cannot be controlled, thereby providing a fast pre-filling tube.

[0005] In order to solve the above problems, the utility model provides a rapid pre-filling tube, including: a first branch tube, a first end of which is suitable for being connected to a rapid pre-filling liquid container; a second branch tube, a first end of which is suitable for being connected to an infusion liquid container; a third branch tube, a first end of which is suitable for being connected to a membrane lung blood storage tank, and the second ends of the first branch tube, the second branch tube and the third branch tube are connected together to form a three-way node; a fourth branch tube, a first end of which is connected to the third branch tube to form a first node, and a second end of which is suitable for being connected to a rapid pre-filling port of the membrane lung blood storage tank, and a liquid pump is provided on the fourth branch tube.

[0006] Optionally, a first throttling element is provided on the first branch pipe.

[0007] Optionally, a second throttling element is provided on the second branch pipe;

[0008] Optionally, a third throttling element is provided on the third branch pipe, and the third throttling element is located between the first end of the third branch pipe and the first node.

[0009] Optionally, a fourth throttling element is provided on the fourth branch pipe, and the fourth throttling element is located between the liquid pump and the first node.

[0010] Optionally, the diameter of the fourth branch pipe is 6 mm.

[0011] Optionally, a drip pot is provided on the second branch pipe.

[0012] The utility model has the following advantages:

[0013] The rapid pre-filling tube provided by the utility model comprises a first branch tube, a second branch tube, a third branch tube and a fourth branch tube. The first end of the first branch tube is suitable for being connected to a rapid pre-filling liquid container, the first end of the second branch tube is suitable for being connected to an infusion liquid container, the first end of the third branch tube is suitable for being connected to a membrane lung blood storage tank, the second ends of the first branch tube, the second branch tube and the third branch tube are connected together to form a three-way node, the rapid pre-filling liquid and the infusion liquid can enter the third branch tube through the three-way node, the first end of the fourth branch tube is connected to the third branch tube to form a first node, the second end is suitable for being connected to a rapid pre-filling port of the membrane lung blood storage tank, and a liquid pump is arranged on the fourth branch tube. When it is necessary to establish an extracorporeal circulation system, rapid pre-filling can be performed through the fourth branch. The liquid pump on the fourth branch can control the liquid flow rate in the first branch and the second branch, and then quickly fill the liquid into the rapid pre-filling port of the membrane lung blood storage tank through the fourth branch, thereby completing the rapid pre-filling and enabling slow drug administration or drip administration. This setting can not only ensure the pre-filling efficiency to quickly establish an extracorporeal circulation system, but also ensure that the blood drug concentration does not change drastically, thereby improving the safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 The schematic diagram of the structure of the fast pre-filling tube in this embodiment is shown.

[0016] Description of reference numerals:

[0017] 11. First branch pipe; 111. First throttling element; 12. Second branch pipe; 121. Second throttling element; 122. Drip pot; 13. Third branch pipe; 131. Three-way node; 132. Third throttling element; 14. Fourth branch pipe; 141. First node; 142. Liquid pump; 143. Fourth throttling element; 2. Rapid pre-filling liquid container; 3. Drip liquid container; 4. Membrane lung blood storage tank. DETAILED DESCRIPTION

[0018] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0022] like Figure 1 As shown, this embodiment provides a rapid pre-filling tube, including a first branch 11, a second branch 12, a third branch 13 and a fourth branch 14. The first end of the first branch 11 is suitable for communicating with the rapid pre-filling liquid container 2, and the first end of the second branch 12 is suitable for communicating with the drip liquid container 3. The drip liquid container can contain drugs such as sodium bicarbonate or mannitol according to actual needs. The first end of the third branch 13 is suitable for communicating with the membrane lung blood storage tank 4. The second ends of the first branch 11, the second branch 12 and the third branch 13 are connected together to form a three-way node 131. The rapid pre-filling liquid and the drip liquid can enter the third branch 13 through the three-way node 131. One end of the fourth branch 14 is connected to the third branch 13 to form a first node 141, and the other end is suitable for communicating with the rapid pre-filling port 41 of the membrane lung blood storage tank 4. The fourth branch 14 is provided with a liquid pump 142.

[0023] When it is necessary to establish an extracorporeal circulation system, rapid pre-filling can be performed through the fourth branch tube 14. The liquid pump 142 on the fourth branch tube 14 can control the liquid flow rate in the first branch tube 11 and the second branch tube 12, and then quickly fill the liquid into the rapid pre-filling port 41 of the membrane lung blood storage tank 4 through the fourth branch tube 14, thereby completing the rapid pre-filling and also enabling slow drug administration or drip administration. Such a setting can not only ensure the pre-filling efficiency to quickly establish an extracorporeal circulation system, but also ensure that the blood drug concentration does not change drastically, thereby improving the safety of the operation.

[0024] The first branch pipe 11, the second branch pipe 12, the third branch pipe 13 and the fourth branch pipe 14 can be integrally formed, and the end of the branch pipe connected to the interface of other equipment or container is defined as the "first end", and the end of each branch pipe connected to each other is defined as the "second end". The first ends of the first branch pipe, the second branch pipe, the third branch pipe and the fourth branch pipe are provided with a connector structure corresponding to the structure of the corresponding equipment or container interface, which is used to connect to the interface of the corresponding equipment or container.

[0025] like Figure 1 As shown, in this embodiment, the second end of the third branch tube 13 is connected to the filling port 42 of the membrane lung blood storage tank 4. After the rapid filling is completed, the membrane lung blood storage tank 4 can be normally filled with liquid medicine through the third branch tube 13.

[0026] like Figure 1 As shown, in this embodiment, a first throttling element 111 is provided on the first branch pipe 11 , and the first throttling element 111 can control the on-off of the first branch pipe 11 and the flow rate of the pre-filled liquid in the first branch pipe 11 .

[0027] like Figure 1 As shown, in this embodiment, a second throttling element 121 is provided on the second branch pipe 12 , and the second throttling element 121 can control the on-off of the second branch pipe 12 and the flow rate of the medicinal liquid in the second branch pipe 12 .

[0028] like Figure 1 As shown, in this embodiment, a third throttling element 132 is provided on the third branch pipe 13, and the third throttling element 132 is located between the first end of the third branch pipe 13 and the first node 141. The third throttling element 132 is suitable for controlling the on-off of the third branch pipe 13 and the flow rate of the medicinal liquid in the third branch pipe 13.

[0029] like Figure 1 As shown, in this embodiment, a fourth throttling element 143 is provided on the fourth branch pipe 14, and the fourth throttling element 143 is located between the liquid pump 142 and the first node 141. The fourth throttling element 143 can control the on-off of the fourth branch pipe 14, and control the flow rate of the medicinal liquid in the fourth branch pipe 14.

[0030] The first throttling element 111, the second throttling element 121, the third throttling element 132 and the fourth throttling element 143 mentioned above can be throttling elements such as throttle valves and pipe clamps commonly used in medical devices, which can control the on-off of the corresponding pipelines and the flow rate of the medicinal solution in the pipelines.

[0031] like Figure 1 As shown, in this embodiment, the diameter of the fourth branch pipe 14 is 6 mm.

[0032] like Figure 1 As shown, in this embodiment, a drip pot 122 is provided on the second branch pipe 12, and the drip pot 122 can be a Murphy's drip pot, so that medical staff can easily discharge the gas in the second branch pipe 12 or add other medicines into the second branch pipe 12. In addition, during rapid priming, the flow rate of the drip pot 122 can be quickly increased by the pump body 142, which meets the requirements of rapid priming and overcomes the problem of slow liquid flow rate of the drip pot 122.

[0033] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A fast pre-filling tube, characterized in that: include: A first branch pipe (11), a first end of which is suitable for being in communication with the fast pre-filling liquid container (2), and a first throttling element (111) is provided on the first branch pipe (11); A second branch pipe (12), a first end of which is suitable for being in communication with the drip liquid container (3), and a second throttling element (121) is provided on the second branch pipe (12); A third branch pipe (13), the first end of which is suitable for being connected to the membrane lung blood storage tank (4), the second ends of the first branch pipe (11), the second branch pipe (12) and the third branch pipe (13) are connected together to form a three-way node (131), and the third branch pipe (13) is provided with a third throttling element (132); a fourth branch pipe (14), the first end of which is connected to the third branch pipe (13) to form a first node, the second end of which is suitable for communicating with the rapid pre-filling port (41) of the membrane lung blood storage tank (4), the third throttling element (132) being located between the first end of the third branch pipe (13) and the first node (141), and the fourth branch pipe (14) being provided with a liquid pump (142); The first throttling element (111), the second throttling element (121) and the third throttling element (132) are respectively used to control the on-off of the branch pipes where they are located.

2. The rapid pre-filling tube according to claim 1, characterized in that: The fourth branch pipe (14) is provided with a fourth throttling element (143), and the fourth throttling element (143) is located between the liquid pump (142) and the first node (141).

3. The rapid pre-filling tube according to claim 1, characterized in that: The diameter of the fourth branch pipe (14) is 6 mm.

4. The rapid pre-filling tube according to claim 1, characterized in that: The second branch pipe (12) is provided with a drip pot (122).

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