Abdominal cavity continuous lavage medicine pump device

Abstract

The utility model relates to a medicine pump device for continuous lavage of an abdominal cavity. The medicine pump device comprises a connecting pipe, a balloon, a shell and a push rod, the tail end of the connecting pipe extends into the balloon and is communicated with the balloon, the balloon is located in the shell, and the push rod used for compressing the inner space of the shell is arranged on the shell. A three-way structure is arranged on the connecting pipe, and a three-way connector is provided with an injection port communicated with the outside; and a pipe clamp is arranged at the front part of the three-way joint on the connecting pipe. The lavage device can be used for lavage of the abdominal cavity continuously, and lavage is conducted continuously for 24 hours, so that peritoneal effusion such as pancreatic fistula can be discharged in time; a sensitive antibiotic solution can be prepared according to drainage liquid bacterial culture and drug sensitivity results, continuous washing of sensitive antibiotics is carried out, and the sensitive antibiotics are combined with vein antibiotics for application, so that the optimal antibacterial effect is achieved; clinical use is convenient, and instant use is achieved; a patient can carry the device conveniently, the early-stage after-operation getting-out-of-bed activity is not affected, and the postoperative rehabilitation process is accelerated.

Description

Technical Field

[0001] This utility model relates to a continuous peritoneal irrigation pump device, belonging to the field of medical supplies technology. Background Technology

[0002] Clinically, surgeons routinely place abdominal drainage tubes after abdominal surgery. This is to ensure proper drainage of surgical site fluid and to monitor the characteristics of the drainage fluid for timely detection of potential bleeding or infection. Its significance is particularly pronounced after pancreatic, biliary, gastrointestinal, and liver surgeries. However, aside from infections caused by organ-related factors (such as pancreatic fistula, bile duct fistula, and various anastomotic leaks), the placed drainage tube itself is also a potential risk factor for infection.

[0003] To improve the drainage of various fluid accumulations after abdominal surgery, Chinese patent document CN221673142U, published on September 10, 2024, discloses "an abdominal irrigation tube and assembly" capable of simultaneous internal and external circulation irrigation. However, during clinical trials, we found that although the abdominal irrigation tube can achieve effective internal and external circulation irrigation, and the assembly is also equipped with a closed drainage interface for connecting a negative pressure suction device, the application scope of the "abdominal irrigation tube and assembly" is limited when the abdominal infection is severe and continuous abdominal irrigation is required.

[0004] To address the issue of abdominal infection, there are currently only two clinical procedures: first, daily, tedious manual flushing of the drainage tube by injecting saline solution into it; second, continuous flushing of the drainage tube by connecting a negative pressure suction device to a closed drainage bottle. The former is simple and offers high flexibility, but it becomes extremely inconvenient when continuous irrigation is needed to enhance drainage. The latter achieves continuous flushing, but this method restricts patient movement, and because it involves manual splicing with non-standardized interface parameters, it can lead to various adverse events such as accidental dislodgement, backflow, and leakage. Summary of the Invention

[0005] The purpose of this invention is to provide a continuous peritoneal irrigation pump device that can be used in conjunction with a peritoneal irrigation tube and components with a closed drainage interface for connecting a negative pressure aspirator. On the one hand, it can achieve continuous irrigation, and on the other hand, it can perform continuous irrigation with sensitive antibiotics based on drug sensitivity culture results to achieve antibacterial and bacteriostatic effects.

[0006] The present invention adopts the following technical solution:

[0007] A continuous peritoneal irrigation pump device includes a connecting tube 6, a balloon 3, a housing, and a push rod 7; the tail end of the connecting tube 6 extends into and is connected to the balloon 3, the balloon 3 is located inside the housing, and the push rod 7 is provided on the housing for compressing the internal space of the housing; a three-way connector 5 is provided on the connecting tube 6, the three-way connector 5 has an injection port 501 communicating with the outside; a tube clamp 601 is provided on the connecting tube at the front of the three-way connector 5.

[0008] Preferably, it also includes an inner limiter 4, which is located outside the balloon 3 and inside the shell.

[0009] Preferably, the housing includes an upper cover 1 and a lower cover 2, which are detachably and sealed together.

[0010] Preferably, the housing is provided with scale lines 101.

[0011] Furthermore, the top of the upper cover 1 is provided with the push rod 7, and a sealing ring 8 is provided between the push rod 7 and the upper cover 1.

[0012] Furthermore, the push rod 7 is in the shape of a hollow tube, and a pressure gauge 9 is provided at its top.

[0013] Preferably, a one-way valve 502 is provided at the injection port 501.

[0014] Preferably, the connecting pipe 6 is provided with a one-way filter 602 facing the head.

[0015] Furthermore, the head end of the connecting tube 6 is provided with a connector 603 for connecting to the abdominal irrigation tube.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1) It can be used for continuous peritoneal irrigation, providing uninterrupted rinsing for 24 hours, which is conducive to the timely drainage of peritoneal fluid such as pancreatic fistula;

[0018] 2) Based on the bacterial culture and drug sensitivity results of the drainage fluid, a sensitive antibiotic solution can be prepared for continuous flushing with the sensitive antibiotic. This solution can be used in combination with intravenous antibiotics to achieve the best antibacterial effect.

[0019] 3) It is convenient to use in clinical practice, and can be used immediately after connection; it is easy for patients to carry, does not affect their early ambulation after surgery, and accelerates the postoperative recovery process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the continuous peritoneal irrigation pump device of this utility model, before the balloon injects liquid.

[0021] Figure 2This is a schematic diagram of the continuous peritoneal irrigation pump device of this utility model, after the balloon has been injected with liquid.

[0022] Figure 3 This is a schematic diagram of a continuous peritoneal irrigation pump device of this utility model, in which the push rod applies pressure to the inside of the housing, causing the liquid in the balloon to flow out through the connecting tube.

[0023] In the diagram: 1. Top cover, 101 scale line, 2. Bottom cover, 201 inlet / outlet, 202 inlet / outlet hole, 3. Balloon, 4. Inner limiter, 5. T-connector, 501 injection port, 502 one-way valve, 6. Connecting pipe, 601 pipe clamp, 602 one-way filter, 603 connector, 7. Push rod, 701 lanyard hole, 8. Sealing ring, 9. Pressure gauge. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] Based on the pressure state within the abdominal cavity, abdominal drainage methods can be divided into two types: negative pressure suction drainage and isobaric conventional drainage. This invention primarily provides a "positive pressure irrigation drainage" method, which uses a pump to pressurize and pump antibiotic solution into the drainage tube. Depending on the needs of abdominal drainage, either "internal circulation" or "external circulation" irrigation can be used to achieve unobstructed drainage and irrigation. If a negative pressure bulb is connected to the drainage tube, drainage can be further enhanced. This drainage method also avoids the use of closed drainage via water-seal bottles, greatly increasing the convenience of clinical use. Specific details are as follows:

[0026] See Figure 1-3 A continuous peritoneal irrigation pump device includes a connecting tube 6, a balloon 3, a housing, and a push rod 7; the tail end of the connecting tube 6 extends into and is connected to the balloon 3, the balloon 3 is located inside the housing, and the push rod 7 is provided on the housing for compressing the internal space of the housing; a three-way connector 5 is provided on the connecting tube 6, the three-way connector 5 has an injection port 501 communicating with the outside; a tube clamp 601 is provided on the connecting tube at the front of the three-way connector 5.

[0027] In this embodiment, see Figure 1 It also includes an inner limiter 4, which is located outside the balloon 3 and inside the shell. The function of the inner limiter 4 is to limit the extent of balloon inflation.

[0028] In this embodiment, see Figure 1 The housing includes an upper cover 1 and a lower cover 2, which are detachably and sealed together, thus facilitating the installation of internal components such as the balloon 3 and the inner limiter.

[0029] In this embodiment, see Figure 1The shell is provided with a scale line 101. The function of the scale line 101 is to monitor the degree of expansion of the balloon 3 after liquid is injected. In particular, when there is no inner limiter 4, the expansion range of the balloon 3 can also be controlled by observing the scale line.

[0030] In this embodiment, see Figure 1 The top of the upper cover 1 is provided with the push rod 7, and a sealing ring 8 is provided between the push rod 7 and the upper cover 1. The push rod 7 can be pushed forward by rotating in a threaded manner. The function of the push rod 7 is to compress the space inside the shell, thereby causing the balloon 3 to contract and push the liquid in the balloon 3 out along the connecting pipe 6.

[0031] In this embodiment, see Figure 1 The push rod 7 is a hollow tube with a pressure gauge 9 on its top, which can monitor the gas pressure inside the housing in real time.

[0032] In this embodiment, see Figure 1 The injection port 501 is provided with a one-way valve 502, which prevents liquid backflow when liquid is injected from the outside.

[0033] In this embodiment, see Figure 1 The connecting pipe 6 is provided with a one-way filter 602 facing the head.

[0034] In this embodiment, see Figure 1 The head end of the connecting tube 6 is provided with a connector 603 for connecting to the abdominal irrigation tube.

[0035] In specific operation, follow these steps: Close the clamp 601, inject the required liquid into the inlet 501, the one-way valve 502 opens with the liquid flow direction, and can simultaneously block backflow of liquid. The one-way valve has a diaphragm structure. The injected liquid enters the balloon 3 through the inlet / outlet port 201 and the inlet / outlet hole 202. You can observe the scale line 101 or when the balloon 3 expands to the inner limiter 4, it means the balloon is full. The balloon itself can generate inward contraction pressure, thereby accelerating the flow rate of the liquid and controlling the outflow time. Open the clamp 601, and it is ready for use. The connecting tube 6 is also equipped with a one-way filter 602 (a one-way valve with a filtering function, this component is a common and readily available item). The front end of the connecting tube 6 is equipped with a connector 603, which can be connected to other instruments, such as puncture devices. When it is necessary to accelerate the flow rate of the liquid inside the balloon, the push rod 7 is used. The push rod 7 is connected to the top cover 1 by a thread. Rotating it can make it move downward or upward. At the same time, due to the threaded connection, it is relatively stable and will not be bounced up. A one-way valve is provided below the thread to prevent air leakage. The push rod has a hollow structure and a pressure gauge is embedded in the top to display the pressure inside the container. When the push rod is rotated downward, the internal pressure increases. The balloon will contract faster due to the force of air compression, thereby achieving the effect of accelerating the flow rate. The hanging hole 701 can be used to pass a hanging rope or to hang it directly.

[0036] The continuous peritoneal irrigation pump device of this utility model needs to be used in conjunction with a peritoneal irrigation tube and components with a closed drainage interface that can be connected to a negative pressure suction device, such as the "peritoneal irrigation tube and components" mentioned in the background art publication number CN221673142U. The connector 603 is directly connected to the peritoneal irrigation tube to achieve the simultaneous application of positive and negative pressure, so as to achieve the purpose of drainage and continuous irrigation.

[0037] In this embodiment, the capacity of the casing is set to 250ml, and the balloon pump speed is set to 24 hours. If it is necessary to accelerate the peritoneal irrigation rate, the pump speed can be adjusted at any time via the joystick. Two bottle colors are provided: transparent and brown, with the appropriate color chosen based on the storage conditions of the antibiotic solution.

[0038] This utility model is easy to use. Simply connect the external thin tube of the drug pump device to the external interface of the abdominal drainage tube for internal and external circulation, turn on the device switch, and it will start working. The abdominal drainage tube can be the "abdominal irrigation tube and assembly" disclosed in CN221673142U.

[0039] The above are preferred embodiments of the present utility model. Those skilled in the art can make their own modifications or improvements based on this. Without departing from the overall concept of the present utility model, such modifications or improvements should fall within the scope of protection claimed by the present utility model.

Claims

1. A continuous peritoneal irrigation pump device, characterized in that: Includes connecting tube (6), balloon (3), shell, and push rod (7); The end of the connecting tube (6) extends into the balloon (3) and is connected. The balloon (3) is located inside the shell. The push rod (7) is provided on the shell for compressing the internal space of the shell. The connecting pipe (6) is provided with a three-way connector (5), which has an injection port (501) communicating with the outside; a pipe clamp (601) is provided on the connecting pipe at the front of the three-way connector (5).

2. The continuous peritoneal irrigation pump device as described in claim 1, characterized in that: It also includes an inner limiter (4), which is located outside the balloon (3) and inside the shell.

3. The continuous peritoneal irrigation pump device as described in claim 1, characterized in that: The housing includes an upper cover (1) and a lower cover (2), which are detachably and sealed together.

4. The continuous peritoneal irrigation pump device as described in claim 1, characterized in that: The housing is provided with scale lines (101).

5. The continuous peritoneal irrigation pump device as described in claim 3, characterized in that: The top of the upper cover (1) is provided with the push rod (7), and a sealing ring (8) is provided between the push rod (7) and the upper cover (1).

6. The continuous peritoneal irrigation pump device as described in claim 5, characterized in that: The push rod (7) is a hollow tube with a pressure gauge (9) on its top.

7. The continuous peritoneal irrigation pump device as described in claim 1, characterized in that: A one-way valve (502) is provided at the injection port (501).

8. The continuous peritoneal irrigation pump device as described in claim 1, characterized in that: The connecting pipe (6) is provided with a one-way filter (602) facing the head.

9. The continuous peritoneal irrigation pump device as described in claim 8, characterized in that: The head end of the connecting tube (6) is provided with a connector (603) for connecting to the abdominal irrigation tube.

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