Disposable negative pressure drainage pipeline

Abstract

The utility model discloses a disposable negative pressure drainage pipeline which comprises a cavity groove type drainage tube, a negative pressure drainage ball, a drainage bag body and a lower through valve, the lower through valve is arranged at the bottom end of the drainage bag body, the head end of the drainage bag body is connected with the negative pressure drainage ball through a PVC tube, and the negative pressure drainage ball is connected with the cavity groove type drainage tube; the down-pass valve comprises a valve body and a valve element, the valve body is composed of a vertical pipe and a transverse pipe which are crossed and connected into a whole, the valve element is inserted into the transverse pipe, and a through hole is formed in the middle of the valve element. And the valve core can be pushed back and forth in the inner cavity of the transverse pipe, so that the opening and closing of the down-pass valve can be realized. And connecting ribs in the passage are removed, so that blood clots, tissue fragments or other substances are prevented from blocking the lower through valve. The cavity-groove type drainage tube comprises a guide needle connecting section, a cavity drainage section and a groove drainage section which are integrally formed, a cavity and a groove are integrated, and the liquid feeding and flushing functions are achieved.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, in particular to a disposable negative pressure drainage pipeline. Background Art

[0002] Negative pressure drainage is a common medical technique. By placing a drainage tube at the wound surface or surgical incision and applying negative pressure at the wound, it can promote blood circulation, increase tissue oxygenation, help remove bacteria and necrotic tissue in the wound, thereby accelerating wound healing. A disposable negative pressure drainage pipeline means it is discarded after each use, which helps reduce the risk of cross-infection, ensures sterility for each use, and is convenient for doctors and patients. Negative pressure drainage pipelines are widely used in various surgeries, including but not limited to surgical wound drainage management in departments such as plastic surgery, trauma surgery, orthopedic surgery, and thyroid and breast surgery.

[0003] The design and manufacture of disposable negative pressure drainage pipelines need to follow strict medical standards and regulations to ensure their safety, effectiveness, and reliability. A disposable negative pressure drainage pipeline usually includes several key components, including a drainage tube, a negative pressure drainage ball, a lower through valve, a negative pressure drainage bag body, etc. The design of the lower through valve helps prevent blockage of the drainage pipeline, ensuring smooth drainage. When designing, the anti-blocking ability should be considered to prevent blood clots, tissue fragments, or other substances from blocking the valve. As Figure 2 shown, when the existing drainage pipeline lower through valve is opened, there is a connecting rib in the middle of the passage, which is likely to cause blood clots, tissue fragments, or other substances to block the valve.

[0004] The existing drainage tube has a small liquid collection surface and is prone to blockage. The liquid supply cavity is mostly arranged inside the drainage tube wall, with a small space and a small liquid supply flow rate. Content of the Utility Model

[0005] To solve the deficiencies of the prior art, the utility model proposes a disposable negative pressure drainage pipeline.

[0006] The utility model adopts the following technical solutions:

[0007] A disposable negative pressure drainage pipeline, including a cavity groove type drainage tube, a negative pressure drainage ball, a drainage bag body, and a lower through valve. The lower through valve is arranged at the bottom end of the drainage bag body. The first end of the drainage bag body is connected to the negative pressure drainage ball through a PVC pipe, and the negative pressure drainage ball is connected to the cavity groove type drainage tube;

[0008] The lower through valve includes a valve body and a valve core. The valve body is composed of a vertical pipe and a horizontal pipe that intersect crosswise and are connected as a whole. The valve core is inserted into the horizontal pipe, and a through hole is opened in the middle of the valve core.

[0009] The cavity-groove type drainage tube includes an integrally formed guiding needle connection section, a cavity drainage section, and a groove drainage section. The cavity drainage section includes a liquid supply cavity and a drainage cavity that are separately and independently sealed. The groove drainage section is provided with a liquid supply cavity and an open drainage groove;

[0010] The liquid supply cavities of the cavity drainage section and the groove drainage section are communicated, and the open drainage groove is communicated with the drainage cavity.

[0011] Further, the PVC tube is threadedly connected to the liquid outlet tube of the negative pressure drainage ball.

[0012] Further, the cavity-groove type drainage tube is connected with a guiding needle.

[0013] Further, a cross-shaped partition is arranged in the groove drainage section. The cross-shaped partition divides the groove drainage section into four cavities. One of them is provided with a sealed liquid supply cavity, and the rest are grooved to form open drainage grooves.

[0014] Further, a one-way valve is installed at the liquid inlet of the drainage bag body.

[0015] Furthermore, a multi-way valve is connected between the negative pressure drainage ball and the cavity-groove type drainage tube. The multi-way valve includes a liquid supply end, a liquid supply cavity connection end, a drainage cavity connection end, and a negative pressure drainage ball connection end. The liquid supply end is internally communicated with the liquid supply cavity connection end. The liquid supply cavity connection end is connected to the liquid supply cavity. The drainage cavity connection end is connected to the drainage cavity. The negative pressure drainage ball connection end is connected to the negative pressure drainage ball through a threaded interface on the negative pressure drainage ball, so as to achieve the effect of connecting with the negative pressure drainage ball.

[0016] The beneficial technical effects obtained by adopting the above technical solutions are as follows:

[0017] The lower through valve includes a valve body and a valve core. The valve body is composed of a vertical tube and a horizontal tube that intersect crosswise and are connected as a whole. The valve core is inserted into the horizontal tube, and a through hole is opened in the middle of the valve core. The valve core can be pushed back and forth in the inner cavity of the horizontal tube. During operation, hold the upper and lower sides of the connection part of the vertical tube and the horizontal tube of the valve body with the index finger and middle finger of one hand, and push the valve core with the thumb to open and close the lower through valve. The connecting ribs in the passage are removed to prevent blood clots, tissue fragments or other substances from blocking the lower through valve.

[0018] The cavity-groove type drainage tube includes an integrally formed guiding needle connection section, a cavity drainage section, and a groove drainage section. The cavity drainage section includes a liquid supply cavity and a drainage cavity that are separately and independently sealed. The groove drainage section is provided with a liquid supply cavity and an open drainage groove. The cavity and the groove are integrated to realize the function of liquid supply and flushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a disposable negative pressure drainage pipeline.

[0020] Figure 2Schematic diagram of the structure of the drainage bag body of the prior art.

[0021] Figure 3 Schematic diagram of the opening of the drainage bag body of the present utility model.

[0022] Figure 4 Schematic diagram of the closing of the drainage bag body of the present utility model.

[0023] Figure 5 Schematic diagram of the multi-way valve structure.

[0024] Figure 6 Schematic diagram of the cross-section of the cavity drainage section and the groove drainage section.

[0025] In the figure, 1 is a negative pressure drainage ball, 2 is a PVC pipe, 3 is a drainage bag body, 4 is a lower on-off valve, 4-1 is a vertical pipe, 4-2 is a horizontal pipe, 4-3 is a valve core, 4-4 is a through hole, 5 is a one-way valve, 6 is a suspension strap, 7 is a multi-way valve, 7-1 is a liquid supply end, 7-2 is a liquid supply chamber connection end, 7-3 is a drainage chamber connection end, 7-4 is a negative pressure drainage ball connection end, 8 is a liquid supply chamber, 9 is an open drainage groove, 10 is a cross-shaped partition, 11 is a drainage chamber, 12 is a groove drainage section, and 13 is a cavity drainage section. Specific embodiments

[0026] Combined with the attached Figures 1 to 6 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] A disposable negative pressure drainage pipeline includes a cavity groove type drainage pipe, a negative pressure drainage ball 1, a drainage bag body 3, and a lower on-off valve. The lower on-off valve 4 is arranged at the bottom end of the drainage bag body. The first end of the drainage bag body is connected to the negative pressure drainage ball through a PVC pipe 2, and the negative pressure drainage ball is connected to the cavity groove type drainage pipe. The lower on-off valve includes a valve body and a valve core. The valve body is composed of a vertical pipe 4-1 and a horizontal pipe 4-2 that intersect crosswise and are connected as a whole. The valve core 4-3 is inserted into the horizontal pipe, and a through hole 4-4 is opened in the middle of the valve core 4-3.

[0028] The inner diameter of the horizontal pipe can be slightly larger than the inner diameter of the vertical pipe, which is convenient for opening a through hole adapted to the inner diameter of the vertical pipe.

[0029] Currently, there is also a design of a rotating valve core that rotates and opens and closes in the horizontal pipe. The rotating valve core is difficult to operate with one hand and is not as easy to control as the inserted type valve core.

[0030] The cavity-groove type drainage tube includes an integrally formed guiding needle connection section, a cavity drainage section 13, and a groove drainage section 12. The cavity drainage section includes a liquid supply cavity 8 and a drainage cavity 11 that are separately and independently closed. The groove drainage section is provided with a liquid supply cavity and an open drainage groove 9. The liquid supply cavities of the cavity drainage section and the groove drainage section are communicated, and the open drainage groove is communicated with the drainage cavity.

[0031] A cross-shaped partition 10 is arranged inside the groove drainage section. The cross-shaped partition divides the groove drainage section into four cavities. One of them is provided with a closed liquid supply cavity, and the other three cavities are respectively grooved to form open drainage grooves. The cross drainage is further upgraded, with the cavity and groove structure combined, and the liquid supply and flushing combined, which is applicable to various skin and soft tissue wounds.

[0032] The PVC pipe is threadedly connected with the liquid outlet pipe of the negative pressure drainage ball, and the drainage bag body can be replaced.

[0033] A one-way valve 5 is installed at the liquid inlet of the drainage bag body to prevent backflow. A sling 6 is also arranged on the drainage bag body for easy hanging.

[0034] A multi-way valve 7 is connected between the negative pressure drainage ball and the cavity-groove type drainage tube. The multi-way valve 7 includes a liquid supply end 7-1, a liquid supply cavity connection end 7-2, a drainage cavity connection end 7-3, and a negative pressure drainage ball connection end 7-4. The liquid supply end is internally communicated with the liquid supply cavity connection end. The liquid supply cavity connection end is connected to the liquid supply cavity. The drainage cavity connection end is connected to the drainage cavity. The negative pressure drainage ball connection end is connected to the negative pressure drainage ball through a threaded interface on the negative pressure drainage ball, so as to achieve the effect of connecting with the negative pressure drainage ball.

[0035] The cavity-groove type drainage tube is connected with a guiding needle. When draining a patient, the installed drainage tube is first inserted into the affected area through the guiding needle and punctured out. The entire groove drainage section and part of the cavity drainage section are placed in the area to be drained. The guiding needle and the guiding needle connection section are removed. The cavity drainage section is connected to the multi-way valve, and the negative pressure drainage ball is communicated with the drainage bag body. Under the action of gravity or negative pressure, the drainage fluid is drained out of the body. When the waste liquid in the drainage bag body needs to be emptied, hold the upper and lower sides of the connection part between the vertical pipe and the horizontal pipe of the valve body with the index finger and middle finger of one hand, and push the valve core with the thumb to open and close the lower through valve, and complete the emptying and shutting off.

[0036] Liquid is supplied and flushed through the multi-way valve to conduct targeted treatment on the internal lesions, and the generated waste can be drained out of the body through the above process at the same time. The same is true for injecting gas. Injecting gas is used to increase the pressure difference inside and outside the body to improve the drainage efficiency.

[0037] It should be noted that in this article, positional terms such as upper, lower, left, and right are only for convenience of description. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0038] Of course, the above description is only the preferred embodiment of the present utility model, and the present utility model is not limited to listing the above embodiments. It should be noted that all equivalent substitutions and obvious deformation forms made by any person skilled in the art under the guidance of this specification fall within the substantial scope of this specification and should be protected by the present utility model.

Claims

1. A disposable negative pressure drainage tube, characterized in that: It comprises a cavity-type drainage tube, a negative pressure drainage ball (1), a drainage bag body (3), and a down-through valve (4), wherein the down-through valve (4) is arranged at the liquid outlet of the drainage bag body (3), the head end of the drainage bag body (3) is connected to the negative pressure drainage ball (1) via a PVC tube (2), and the negative pressure drainage ball (1) is connected to the cavity-type drainage tube; The down-through valve (4) comprises a valve body and a valve core (4-3), wherein the valve body is composed of a vertical tube (4-1) and a horizontal tube (4-2) which intersect and are connected as a whole in a cross shape, the valve core (4-3) is inserted into the horizontal tube (4-2), and a through hole (4-4) is opened in the middle of the valve core (4-3).

2. The disposable negative pressure drainage pipeline according to claim 1, characterized in that: The cavity drainage tube comprises an integrally formed guide needle connection section, a cavity drainage section (13) and a groove drainage section (12); the cavity drainage section comprises a liquid supply cavity (8) and a drainage cavity (11) which are respectively and independently closed; and the groove drainage section is provided with a liquid supply cavity and an open drainage groove (9); The liquid supply cavity of the cavity drainage section (13) and the groove drainage section (12) are in communication, and the open drainage groove (9) is in communication with the drainage cavity (11).

3. The disposable negative pressure drainage circuit according to claim 1, characterized in that: The PVC tube (2) is threadedly connected to the liquid outlet pipe of the negative pressure drainage ball (1).

4. The disposable negative pressure drainage circuit according to claim 1, characterized in that: The cavity-type drainage tube is connected with a guide needle.

5. The disposable negative pressure drainage pipeline according to claim 1, characterized in that: A multi-way valve (7) is connected between the negative pressure drainage ball (1) and the cavity-shaped drainage tube. The multi-way valve (7) comprises a liquid supply end (7-1), a liquid supply cavity connection end (7-2), a drainage cavity connection end (7-3), and a negative pressure drainage ball connection end (7-4). The liquid supply end (7-1) is internally connected to the liquid supply cavity connection end (7-2). The liquid supply cavity connection end (7-2) is connected to the liquid supply cavity (8), the drainage cavity connection end (7-3) is connected to the drainage cavity (11), and the negative pressure drainage ball connection end (7-4) is connected to the negative pressure drainage ball via a threaded interface on the negative pressure drainage ball (1).

6. The disposable negative pressure drainage circuit according to claim 2, characterized in that: A cross-shaped partition (10) is arranged inside the groove drainage section (12), and the cross-shaped partition (10) divides the groove drainage section (12) into four chambers, one of which is provided with a closed liquid supply chamber (8), and the remaining ones are grooved to form open drainage grooves (9).

7. The disposable negative pressure drainage circuit according to claim 1, characterized in that: The liquid inlet of the drainage bag body (3) is additionally provided with a one-way valve (5).

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