Abdominal cavity drainage tube capable of monitoring pressure of multiple parts in abdominal cavity

By setting a fixed seat and a movable seat on the abdominal drainage tube, and utilizing the design of fixation components and data transmission lines, the problem of insufficient flexibility and adaptability of traditional drainage tubes is solved, enabling more accurate and comprehensive intra-abdominal pressure monitoring and improving the clinical application effect.

CN224193824UActive Publication Date: 2026-05-05XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV
Filing Date
2025-01-02
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Traditional drainage tubes that monitor intra-abdominal pressure have limitations in terms of flexibility and adaptability, and cannot meet diverse clinical needs.

Method used

An abdominal drainage tube capable of monitoring pressure at multiple locations within the abdominal cavity was designed. By setting a fixed seat and a movable seat on the drainage tube and equipping it with several pressure sensors, the movable seat can be flexibly adjusted and temporarily fixed using fixing components. Combined with a data transmission line and C-type card design, stable connection of the sensors and data transmission are ensured.

Benefits of technology

It improves the accuracy and comprehensiveness of monitoring intra-abdominal pressure, reduces measurement errors, enhances the flexibility and adaptability of the equipment, and improves the treatment effect and safety for patients.

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Abstract

The utility model discloses an abdominal cavity drainage tube capable of monitoring pressure of multiple parts in an abdominal cavity, which comprises a drainage tube, a fixed seat arranged at the head end of the drainage tube, a plurality of pressure sensors arranged on the fixed seat, a plurality of movable seats arranged on the drainage tube, and a plurality of pressure sensors arranged on the movable seats. A fixing piece used for enabling the movable seat to move on the drainage tube and to be temporarily fixed is arranged between the drainage tube and the movable seat, and the pressure sensor is connected with a data transmission line. The positions of the movable seats on the drainage tube are flexibly adjusted, and the movable seats are temporarily fixed through the fixing pieces, so that the device can adapt to abdominal cavity structures and monitoring requirements of different patients, more accurate and more comprehensive abdominal cavity internal pressure data can be provided for medical staff, and the treatment effect and safety of the patients can be improved. The problems that a traditional drainage tube capable of monitoring the abdominal pressure has certain limitation in the aspects of flexibility and adaptability and cannot meet diversified clinical requirements are effectively solved.
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Description

Technical Field

[0001] This utility model relates to the technical field of clinical medicine, specifically an abdominal drainage tube that can monitor pressure at multiple points within the abdominal cavity. Background Technology

[0002] Some patients undergoing abdominal surgery may experience increased intra-abdominal pressure post-surgery due to various reasons. In severe cases, this can lead to abdominal compartment syndrome, requiring emergency treatment or even repeat surgical decompression. Monitoring intra-abdominal pressure is therefore crucial. Currently, intra-bladder pressure is often monitored clinically to reflect intra-abdominal pressure. This involves injecting a certain amount of normal saline into the bladder through a catheter and measuring the bladder pressure as a substitute for intra-abdominal pressure. However, this method has drawbacks such as inaccurate measurements and high labor costs. Furthermore, intra-abdominal pressure is not entirely uniform; for example, the pressure within the omentum, enclosed cavities, and free abdominal cavities differs. Abdominal drainage tubes, as commonly used drainage devices, are primarily used to remove fluid accumulated in the patient's abdominal cavity for subsequent examination. Most abdominal surgeries involve the placement of abdominal drainage tubes. Using these tubes to measure intra-abdominal pressure allows for non-invasive, real-time, and continuous monitoring, enabling earlier identification and intervention of intra-abdominal hypertension.

[0003] Chinese patent application number CN202123412090.X discloses a drainage tube capable of monitoring abdominal pressure, comprising a main tube, a main control housing at one end of the main tube containing a controller, and a detection end at the other end of the main tube containing at least one pressure sensor. A first channel and a second channel are arranged in parallel within the main tube. The first channel penetrates the main tube and contains a data transmission line, one end of which extends into the detection end. The pressure sensor is connected to the controller via the data transmission line. A drainage tube is slidably installed within the second channel, and an insertion channel is also provided in the middle of the main tube. This drainage tube capable of monitoring abdominal pressure can monitor abdominal pressure and drain fluid from the abdominal cavity when the pressure is too high.

[0004] Regarding the aforementioned technologies, the pressure sensor at the detection end of the drainage tube that can monitor abdominal pressure is fixed, which has certain limitations in terms of flexibility and adaptability. This can lead to measurement errors and inaccurate detection results, affecting its application in complex clinical environments and failing to meet diverse clinical needs. Utility Model Content

[0005] The purpose of this invention is to provide an abdominal drainage tube that can monitor pressure at multiple points within the abdominal cavity, aiming to solve the problem that traditional drainage tubes that can monitor abdominal pressure have certain limitations in terms of flexibility and adaptability, and cannot meet diverse clinical needs.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An abdominal drainage tube capable of monitoring pressure at multiple locations within the abdominal cavity includes a drainage tube, a fixed base at the head end of the drainage tube, a plurality of pressure sensors mounted on the fixed base, a plurality of movable seats on the drainage tube, a plurality of pressure sensors mounted on the movable seats, a fixing member between the drainage tube and the movable seats for moving and temporarily fixing the movable seats on the drainage tube, and a data transmission line connected to the pressure sensors for connection to external instruments.

[0008] In one alternative: the fixing element is a silicone sleeve, the inner diameter of which is smaller than the outer diameter of the drainage tube.

[0009] In one alternative: several C-type clips for fixing the data transmission line are provided on the movable seat and the drainage tube body.

[0010] In one alternative: both ends of the C-type card along the length of the drainage tube are shaped like water droplets.

[0011] In one alternative: the pressure sensor is detachably mounted on the fixed base and the movable base.

[0012] In one alternative embodiment: both the fixed base and the movable base are provided with slots, and the pressure sensor is inserted into the fixed base and the movable base through the slots.

[0013] In one alternative: an elastic retaining strip is provided at the opening of the card slot.

[0014] In one alternative: a sealing gasket is provided at the connection between the card slot and the pressure sensor.

[0015] The advantages of this utility model compared to the prior art are:

[0016] This invention features a series of movable seats that allow for flexible adjustment of the drainage tube's position, with temporary fixation by fasteners. This allows it to adapt to different patients' abdominal structures and monitoring needs, providing medical staff with more accurate and comprehensive intra-abdominal pressure data, thus improving patient treatment outcomes and safety. It effectively solves the limitations of traditional intra-abdominal pressure monitoring drainage tubes in terms of flexibility and adaptability, failing to meet diverse clinical needs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model.

[0018] Figure 2This is a schematic diagram of the structure of the fixed seat and the movable seat, which is mainly used to demonstrate the first embodiment of this utility model.

[0019] Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle.

[0020] Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model.

[0021] Figure 5 yes Figure 4 Enlarged schematic diagram of part B.

[0022] Figure label annotations: 1. Drainage tube; 11. Fixing component; 111. C-type clip; 2. Fixed base; 3. Movable base; 4. Pressure sensor; 5. Data transmission line; 6. Slot; 7. Elastic clip; 8. Sealing gasket. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. In the drawings and description, similar or identical parts are referred to by the same reference numerals, and in practical applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in this utility model are merely illustrative and not intended to limit the scope of this utility model. Any obvious modifications or changes made to this utility model do not depart from its spirit and scope. Example

[0024] like Figure 1 and Figure 2 As shown, this utility model provides an abdominal drainage tube that can monitor pressure at multiple locations within the abdominal cavity. It includes a drainage tube 1, a fixed base 2 at the head end of the drainage tube 1, a plurality of pressure sensors 4 on the fixed base 2, a plurality of movable seats 3 on the drainage tube 1, a plurality of pressure sensors 4 on the movable seats 3, a fixing member 11 between the drainage tube 1 and the movable seats 3 for moving and temporarily fixing the movable seats 3 on the drainage tube 1, and a data transmission line 5 for connecting the pressure sensors 4 to external instruments.

[0025] First, medical staff fix the fixation seat 2 at the tip of the drainage tube 1 in an appropriate position within the abdominal cavity using suitable methods (such as surgical sutures or bio-adhesive bonding). This ensures good contact between the pressure sensor 4 on the fixation seat 2 and the abdominal wall or viscera, enabling accurate sensing of intra-abdominal pressure. Simultaneously, since intra-abdominal pressure varies from patient to patient (e.g., pressure in the omental sac, enclosed cavities, and free abdominal cavities differs), medical staff can flexibly adjust the position of the movable seat 3 on the drainage tube 1 according to the patient's abdominal structure and monitoring needs. This seat is then temporarily fixed using the fixation piece 11. This provides medical staff with more accurate and comprehensive intra-abdominal pressure data, contributing to improved treatment outcomes and safety for patients. This effectively solves the problem of limitations in flexibility and adaptability inherent in traditional drainage tubes 1 that can monitor intra-abdominal pressure, failing to meet diverse clinical needs.

[0026] Specifically, such as Figure 1 As shown, the fixing member 11 is a silicone sleeve, the inner diameter of which is smaller than the outer diameter of the drainage tube 1. As a fixing member 11, the silicone sleeve can fit tightly on the drainage tube 1, providing stable support and fixation; at the same time, the softness and elasticity of the silicone sleeve allow the movable seat 3 to move easily on the drainage tube 1 and can be temporarily fixed in different positions.

[0027] And such as Figure 1 and Figure 2 As shown, several C-shaped clips 111 are provided on the movable seat 3 and the drainage tube 1 to fix the data transmission line 5. This design can prevent the data transmission line 5 from moving or falling off during the operation of medical staff, thereby ensuring the stability and reliability of data transmission.

[0028] And as Figure 1 , Figure 2 and Figure 3 As shown, both ends of the C-type card 111 along the length of the drainage tube 1 are teardrop-shaped streamlined. The teardrop-shaped streamlined design can effectively reduce the friction between the drainage tube 1 or other medical devices and tissues when they move in the body. This helps to reduce damage to surrounding tissues, reduce the incidence of postoperative complications, and improve patient comfort. In addition, the streamlined design makes it easier to insert or withdraw the drainage tube 1 into the body cavity and reduce resistance during operation. This is especially important for medical operations that require precise positioning and frequent adjustments, which can improve surgical efficiency and reduce operation time. Example

[0029] like Figures 1-5 As shown, the difference between this embodiment and Embodiment 1 is that:

[0030] The pressure sensor 4 can be detachably installed on the fixed base 2 and the movable base 3. The pressure sensor 4 is a patch or thin film pressure sensor. The design of the pressure sensor 4 to be detachably installed on the fixed base 2 and the movable base 3 brings great convenience and flexibility to the abdominal drainage tube 1 that can monitor intra-abdominal pressure. This design not only improves the monitoring accuracy and service life of the drainage tube 1, but also reduces medical costs and maintenance difficulty.

[0031] Furthermore, such as Figures 4-5 As shown, both the fixed base 2 and the movable base 3 are provided with slots 6, through which the pressure sensor 4 is inserted into the fixed base 2 and the movable base 3. Both the fixed base 2 and the movable base 3 are provided with slots 6 specifically for inserting the pressure sensor 4. The slots 6 are designed with a contour that matches the shape and size of the pressure sensor 4 to ensure that the sensor can be stably inserted and fixed in the slots 6. This design not only simplifies the installation and removal process of the sensor and reduces the maintenance cost of the drainage tube 1, but also improves the stability and accuracy of the monitoring system.

[0032] At the same time, such as Figures 4-5 As shown, an elastic retaining strip 7 is provided at the opening of the slot 6. The elastic retaining strip 7 can ensure that the pressure sensor 4 is securely installed in the slot 6, preventing it from falling off or shifting due to external force or impact from intra-abdominal fluid during operation. This secure installation method helps to ensure the accuracy and reliability of monitoring data. At the same time, the elastic retaining strip 7 has a certain degree of elasticity and adjustability, which can adapt to pressure sensors 4 of different sizes or shapes. This means that the drainage tube 1 can be compatible with a variety of types of sensors, thereby improving the flexibility and versatility of the equipment.

[0033] In addition, such as Figures 4-5 As shown, a sealing gasket 8 is provided at the connection between the card slot 6 and the pressure sensor 4. The material of the sealing gasket 8 is usually selected to have good elasticity, wear resistance and corrosion resistance, such as silicone, rubber or polytetrafluoroethylene. It can not only prevent leakage and maintain a sterile environment, but also further enhance the connection stability between the pressure sensor 4 and the fixed seat 2 and the movable seat 3.

[0034] The specific working effects of this utility model are as follows:

[0035] First, medical staff fix the fixation seat 2 at the tip of the drainage tube 1 in an appropriate position within the abdominal cavity using suitable methods (such as surgical sutures or bio-adhesive bonding). This ensures good contact between the pressure sensor 4 on the fixation seat 2 and the abdominal wall or viscera, enabling accurate sensing of intra-abdominal pressure. Simultaneously, since intra-abdominal pressure varies from patient to patient (e.g., pressure in the omental sac, enclosed cavities, and free abdominal cavities differs), medical staff can flexibly adjust the position of the movable seat 3 on the drainage tube 1 according to the patient's abdominal structure and monitoring needs. This seat is then temporarily fixed using the fixation piece 11. This provides medical staff with more accurate and comprehensive intra-abdominal pressure data, contributing to improved treatment outcomes and safety for patients. This effectively solves the problem of limitations in flexibility and adaptability inherent in traditional drainage tubes 1 that can monitor intra-abdominal pressure, failing to meet diverse clinical needs.

[0036] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. An abdominal drainage tube capable of monitoring pressure at multiple points within the abdominal cavity, comprising a drainage tube (1), characterized in that, The drainage tube (1) is provided with a fixed seat (2) at its head end. Several pressure sensors (4) are provided on the fixed seat (2). Several movable seats (3) are provided on the drainage tube (1). Several pressure sensors (4) are provided on the movable seats (3). A fixing member (11) is provided between the drainage tube (1) and the movable seats (3) for moving and temporarily fixing the movable seats (3) on the drainage tube (1). The pressure sensors (4) are connected to a data transmission line (5) for connecting to an external instrument.

2. The abdominal drainage tube for monitoring pressure at multiple points within the abdominal cavity according to claim 1, characterized in that, The fixing member (11) is a silicone sleeve, the inner diameter of which is smaller than the outer diameter of the drainage tube (1).

3. An abdominal drainage tube capable of monitoring pressure at multiple sites within the abdominal cavity according to claim 2, characterized in that, Several C-type clips (111) for fixing the data transmission line (5) are provided on the movable seat (3) and the body of the drainage tube (1).

4. An abdominal drainage tube capable of monitoring pressure at multiple sites within the abdominal cavity according to claim 3, characterized in that, The C-type card (111) has a water droplet streamline shape on both ends along the length of the drainage tube (1).

5. An abdominal drainage tube capable of monitoring pressure at multiple sites within the abdominal cavity according to claim 1, characterized in that, The pressure sensor (4) can be detachably mounted on the fixed base (2) and the movable base (3).

6. An abdominal drainage tube capable of monitoring pressure at multiple sites within the abdominal cavity according to claim 5, characterized in that, Both the fixed base (2) and the movable base (3) are provided with slots (6), and the pressure sensor (4) is inserted into the fixed base (2) and the movable base (3) through the slots (6).

7. An abdominal drainage tube for monitoring pressure at multiple sites within the abdominal cavity according to claim 6, characterized in that, An elastic clip (7) is provided at the opening of the slot (6).

8. An abdominal drainage tube capable of monitoring pressure at multiple sites within the abdominal cavity according to claim 6, characterized in that, A sealing gasket (8) is provided at the connection between the card slot (6) and the pressure sensor (4).

Citation Information

Patent Citations

  • Drainage tube capable of monitoring abdominal pressure

    CN216934220U