A multi-functional tubing assembly for a pneumostasis machine and a pneumostasis machine system

Abstract

The utility model provides a kind of multifunctional pipeline assembly for gas abdominal distension machine and gas abdominal distension machine system, belong to medical equipment technical field, comprising: gas injection pipe, gas injection pipe is connected with filter and at least one air bag, filter and air bag are sequentially arranged along gas injection direction, air bag is set to be able to inhibit pressure fluctuation in gas abdominal distension space by the change of its internal volume;The utility model has the beneficial effect that: provide a kind of pipeline assembly with filtering function and inhibit gas abdominal distension space pressure fluctuation, this modular multifunctional pipeline assembly can be connected between gas abdominal distension machine and puncture device, can effectively eliminate the "breathing effect" in the process of small cavity laparoscopy.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, and relates to a multifunctional tubing assembly for an insufflator and an insufflator system. Background Technology

[0002] In recent years, with the increasing demand from patients for minimally invasive treatments, open surgery has been increasingly replaced by laparoscopic minimally invasive surgery. In laparoscopic minimally invasive surgery, the importance of the tubing assembly connecting the insufflator and the trocar for insufflation has become increasingly apparent.

[0003] During the process of injecting gas into the anus via the tubing assembly and trocar, existing tubing may lack filtration capabilities, potentially allowing the injected gas to carry microorganisms or particulate contaminants. This lack of filtration not only increases the risk of abdominal infection in patients but may also affect the stability of the pneumoperitoneum system.

[0004] Meanwhile, existing small-cavity laparoscopic minimally invasive surgeries, such as TaTME (transanal total mesorectal excision), require a surgical space with constant pneumatic pressure. Because the anus and similar cavities have small volumes and rigid walls, pressure fluctuations in the pneumoperitoneum machine can easily lead to instability in the surgical space within the cavity, causing a breathing-like phenomenon that severely affects the surgical procedure. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a multifunctional tubing assembly and an insufflation machine system for use in an insufflation machine.

[0006] The objective of this utility model can be achieved through the following technical solution: a multifunctional tubing assembly for an insufflator, comprising: An air injection tube is connected to a filter and at least one air bladder. The filter and the air bladder are arranged sequentially along the air injection direction. The air bladder is configured to suppress pressure fluctuations within the pneumoperitoneum space through changes in its internal volume.

[0007] Preferably, the airbag is configured as an elastic balloon structure.

[0008] Preferably, the airbag includes a sealed outer shell, a piston plate, and an elastic element. The piston plate is movably installed inside the sealed outer shell. The interior of the sealed outer shell is divided into a buffer chamber and a storage chamber via the piston plate. The elastic element is located in the storage chamber and connected to the piston plate. The elastic element applies an elastic force to the piston plate to move it toward the buffer chamber. The air inlet and air outlet of the airbag are both in communication with the buffer chamber.

[0009] Preferably, the airbag includes a sealed outer shell and an elastic diaphragm. The elastic diaphragm is located inside the sealed outer shell and divides the interior of the sealed outer shell into a first cavity and a second cavity. The edge of the elastic diaphragm is fixedly connected to the inner wall of the sealed outer shell. The air inlet and air outlet of the airbag are both connected to the first cavity or the second cavity.

[0010] Preferably, the air inlet and air outlet of the airbag are respectively provided with a first connector and a second connector, and the air injection tube includes at least two hoses, one end of the hose is connected to the outlet of the filter and the other end is connected to the air inlet of the airbag through the first connector, and one end of the other hose is connected to the air outlet of the airbag through the second connector.

[0011] Preferably, both the first connector and the second connector are configured as pagoda-shaped connectors, Luer connectors, or medical quick-connect connectors.

[0012] Preferably, the filter is configured as a standard filter or a smoke exhaust filter.

[0013] Preferably, the volume of the air bladder is greater than the volume of the pneumoperitoneum space.

[0014] Ideally, it should also include a smoke exhaust pipe.

[0015] An insufflator system includes the aforementioned multifunctional tubing assembly for the insufflator, and also includes the insufflator and a trocar, with the two ends of the insufflator tube connected to the insufflation port of the insufflator and the trocar, respectively.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. A tubing assembly with filtering function and pressure fluctuation suppression in the pneumoperitoneum space is provided. This modular, multifunctional tubing assembly can be connected between the pneumoperitoneum machine and the trocar, and can effectively eliminate the "breathing effect" during small-cavity laparoscopic surgery.

[0017] 2. Due to the principle that pressure is equal throughout the same channel space, the gas stored in the balloon is immediately replenished in the small cavity; conversely, if the operation causes overpressure in the small cavity, the excess gas will flow into the balloon. This ensures that the pressure within the small cavity remains constant. This automatic pressure adjustment between the small cavity and the balloon is based on physical properties, thus enabling a rapid response and significantly reducing pressure fluctuations within the small cavity, ensuring stability and safety during the procedure. This mechanism not only optimizes gas management but also improves surgical efficiency and patient safety.

[0018] 3. The larger volume of the air bladder than the pneumoperitoneum space means that it has sufficient "gas reserves" and "absorption capacity". It can absorb excess gas when the pressure rises and release gas when the pressure drops, thus playing a dynamic buffering role. Because the air bladder has a large volume, the total amount of gas inside is sufficient to cope with multiple pressure disturbances in a short period of time, eliminating the need for frequent start-ups of the pneumoperitoneum machine to increase pressure and improving the system response efficiency. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of Embodiment Seven of the present invention.

[0020] Figure 2 This is a structural schematic diagram of Embodiment 8 of the present invention.

[0021] Figure 3 This is a structural schematic diagram of Embodiment 8 of this utility model in conjunction with Embodiment 5.

[0022] Figure 4A This is a schematic diagram showing the combination of Embodiment 1 and Embodiment 4 of this utility model.

[0023] Figure 4B This is a schematic diagram showing the combination of Embodiment 1 and Embodiment 5 of this utility model.

[0024] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0025] Figure 6 This is a structural schematic diagram of Embodiment 3 of the present invention.

[0026] Figure 7 This is a schematic diagram of the pneumoperitoneum system with a standard filter according to this utility model.

[0027] Figure 8 This is a schematic diagram of the structure of the pneumoperitoneum machine system of this utility model, which includes a smoke exhaust filter and a smoke exhaust pipe.

[0028] Figure 9 This is a schematic diagram of the structure of Embodiment Six of this utility model.

[0029] In the diagram, 100 is the inflator tube; 110 is the hose; 200 is the filter; 300 is the air bladder; 310 is the sealed outer shell; 311 is the buffer chamber; 312 is the storage chamber; 313 is the first chamber; 314 is the second chamber; 320 is the piston plate; 330 is the elastic element; 340 is the elastic diaphragm; 350 is the first connector; 360 is the second connector; 400 is the exhaust pipe; 500 is the pneumoperitoneum machine; and 600 is the puncture device. Detailed Implementation

[0030] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0031] like Figures 1 to 9 As shown, a multifunctional tubing assembly for an insufflator includes: an air injection tube 100, the air injection tube 100 being connected to a filter 200 and at least one air bladder 300, the filter 200 and the air bladder 300 being arranged sequentially along the air injection direction, and the air bladder 300 being configured to suppress pressure fluctuations within the insufflator space through changes in its internal volume.

[0032] This multi-functional tubing assembly for insufflators is primarily designed to improve the precision and stability of intra-abdominal pressure control during surgery. The insufflator 500 is commonly used in abdominal surgery to expand the surgical operating space by injecting gas (usually carbon dioxide) into the abdominal cavity, facilitating surgical procedures. During surgery, the insufflator 500 replenishes the insufflation space with gas through the tubing assembly. Due to various reasons, the injection pressure of the insufflator 500 can fluctuate, especially in surgeries involving small cavities (such as the anus). The walls of these cavities are relatively rigid, and even slight pressure fluctuations in the insufflator 500 can lead to instability in the insufflation space, potentially causing a "breathing phenomenon."

[0033] To address the aforementioned issues, this solution specifically designs a tubing assembly capable of filtering the gas in the injection path and suppressing pressure fluctuations within the pneumoperitoneum space. The injection tube 100 serves as the channel for delivering gas from the insufflator 500 to the patient. A filter 200, connected to the injection tube 100, filters out fine particles, bacteria, or other potentially infectious substances from the gas, ensuring the cleanliness of the gas injected into the pneumoperitoneum space. The balloon 300 is designed to absorb and suppress pressure fluctuations within the pneumoperitoneum space caused by various factors by adjusting its internal volume. For example, during surgery, when pressure fluctuations occur in the insufflator 500, the balloon 300 can buffer and balance the pressure within the pneumoperitoneum space through its expansion or contraction, thereby maintaining a relatively stable pressure environment and contributing to improved surgical environment and efficiency.

[0034] In principle, during small-cavity surgery, the insufflator 500 is connected to the trocar 600 via tubing to deliver gas into the target cavity, thus establishing an insufflation space within the cavity. Since the insufflation tubing 100 is equipped with an air bladder 300, and the volume of the air bladder 300 is designed to be larger than the volume of the small cavity, gas will preferentially fill the air bladder 300 during the initial inflation phase. Thus, when it is necessary to inflate the small cavity (insufflation space), the air bladder 300 is used as a buffer to regulate the amount of gas entering the cavity, ultimately achieving pressure balance. With this configuration, if the surgeon's operation causes underpressure in the small cavity, due to the principle that pressure is equal everywhere within the same channel space, the gas stored in the air bladder 300 will immediately replenish the small cavity; conversely, if the operation causes overpressure in the small cavity, the excess gas will flow into the air bladder 300. This ensures that the pressure within the small cavity remains constant. The automatic pressure adjustment between the small cavity and the balloon 300 is based on physical properties, thus enabling an immediate response and significantly reducing pressure fluctuations within the small cavity, ensuring stability and safety during the surgical procedure. This mechanism not only optimizes gas management but also improves surgical efficiency and patient safety.

[0035] Example 1: like Figure 1 , Figure 4B , Figure 7 , Figure 8 , Figure 9 As shown, the airbag 300 is configured as an elastic balloon-type structure. Elastic balloon-type airbags 300 are typically made of medical-grade materials with good elasticity and durability, such as silicone or specific types of synthetic rubber. These materials provide sufficient flexibility to accommodate changes in gas volume while ensuring safety.

[0036] Because of its instantaneous response, the airbag 300 can react quickly to any pressure change (whether under-pressure or over-pressure) within the small cavity. For example, under-pressure conditions, the airbag 300 will contract to release the stored gas into the small cavity; while under-pressure conditions, the airbag 300 will inflate to receive the excess gas.

[0037] Example 2: like Figure 5 As shown, the airbag 300 includes a sealing shell 310, a piston plate 320, and an elastic member 330. The piston plate 320 is movably installed inside the sealing shell 310. The interior of the sealing shell 310 is divided into a buffer chamber 311 and a storage chamber 312 by the piston plate 320. The elastic member 330 is located in the storage chamber 312 and is connected to the piston plate 320. The elastic member 330 applies a spring force to the piston plate 320 to move it toward the buffer chamber 311. The air inlet and air outlet of the airbag 300 are both connected to the buffer chamber 311.

[0038] In Embodiment 2, the airbag 300 employs a piston design, mechanically altering the volume of the buffer chamber 311 to respond to and regulate changes in gas pressure. The principle of Embodiment 2 is similar to Embodiment 1, except that the overall volume of Embodiment 2 remains unchanged; that is, the airbag 300 in Embodiment 2 does not expand or contract, only the volume of the internal buffer chamber 311 changes.

[0039] Example 3: like Figure 6 As shown, the airbag 300 includes a sealed outer shell 310 and an elastic diaphragm 340. The elastic diaphragm 340 is located inside the sealed outer shell 310 and divides the interior of the sealed outer shell 310 into a first cavity 313 and a second cavity 314. The edge of the elastic diaphragm 340 is fixedly connected to the inner wall of the sealed outer shell 310. The air inlet and air outlet of the airbag 300 are both connected to the first cavity 313 or the second cavity 314.

[0040] Example 3 is similar in principle to Example 2, and there is no expansion or contraction overall. However, Example 3 uses a diaphragm structure, which utilizes the deformation characteristics of the elastic diaphragm 340 to effectively regulate and manage the gas pressure in the cavity.

[0041] The elastic diaphragm 340 is made of a soft yet strong material. The edges of the diaphragm are firmly fixed to the inner wall of the outer shell, ensuring that there is no gas leakage between the two cavities. Taking the example where both the air inlet and outlet of the airbag 300 are connected to the first cavity 313, under under-pressure conditions, the elastic diaphragm 340 deforms, and the first cavity 313 will release the gas stored inside into the smaller cavity by contraction; while under over-pressure conditions, the elastic diaphragm 340 deforms, and the first cavity 313 will expand to receive the excess gas.

[0042] like Figure 1 , Figure 4A , Figure 4B As shown, based on the above embodiment, the air inlet and outlet of the airbag 300 are respectively provided with a first connector 350 and a second connector 360. The air injection tube 100 includes at least two hoses 110. One end of one hose 110 is connected to the outlet of the filter 200 and the other end is connected to the air inlet of the airbag 300 through the first connector 350. One end of the other hose 110 is connected to the air outlet of the airbag 300 through the second connector 360.

[0043] Example 4: like Figure 1 , Figure 4AAs shown, both the first connector 350 and the second connector 360 are configured as pagoda-shaped connectors. Pagoda-shaped connectors, also known as trapezoidal snap-fit ​​connectors or conical stepped connectors, are cylindrical in shape with a stepped, descending form. The diameter decreases progressively from the base to the top, forming multiple concentric circular steps. The hose 110 can be directly connected to the airbag 300 via the pagoda-shaped connector.

[0044] Example 5: like Figure 1 , Figure 4B As shown, both the first connector 350 and the second connector 360 are configured as Luer connectors.

[0045] Example 6: like Figure 9 As shown, both the first connector 350 and the second connector 360 are configured as medical quick-connect couplings. Medical quick-connect couplings are specialized quick-connect components used in medical devices or systems, primarily for the safe and efficient transfer of liquids, gases, or medications during medical procedures. They simplify the connection process, reduce operation time, and ensure sealing and hygiene safety.

[0046] Example 7: like Figure 1 , Figure 7 As shown, the filter (200) is configured as a standard filter. A standard filter is a general-purpose filtration device used to remove specific contaminants (such as particulate matter, microorganisms, aerosols, etc.) from gas, ensuring that the injected gas meets the usage standards.

[0047] Example 8: like Figure 2 , Figure 3 , Figure 8 As shown, the filter (200) is configured as a smoke exhaust filter. A smoke exhaust filter is a device specifically designed to capture and purify smoke, harmful gases, or aerosols, capable of adsorbing toxic fumes (containing viruses, tar, etc.) generated by surgical scalpels and lasers.

[0048] It should be noted that, based on Embodiment 8, the exhaust pipe 400 is also connected to the exhaust filter.

[0049] like Figures 1 to 9 As shown, based on the above implementation method, the volume of the airbag 300 is larger than the volume of the pneumoperitoneum space. The larger volume of the airbag 300 means it has sufficient "gas reserves" and "absorption capacity," enabling it to absorb excess gas when pressure increases and release gas when pressure decreases, thus providing a dynamic buffering effect. Because the airbag 300 has a larger volume, the total amount of gas inside is sufficient to cope with multiple pressure disturbances in a short period, eliminating the need for frequent pressurization by the pneumoperitoneum machine 500 and improving system response efficiency.

[0050] Based on the above-described embodiment, a smoke exhaust pipe 400 is also included. One end of the smoke exhaust pipe 400 is connected to the trocar 600, and the other end is connected to a negative pressure source or a smoke exhaust filter. The smoke generated by electrosurgical equipment (such as electrocautery, laser, etc.) during modern minimally invasive surgery can be absorbed through the smoke exhaust pipe 400.

[0051] like Figures 1 to 9 As shown, an insufflator system includes a multifunctional tubing assembly for the insufflator, an insufflator 500, and a trocar 600. The two ends of the insufflation tubing 100 are connected to the insufflation port of the insufflator 500 and the trocar 600, respectively.

[0052] This system can achieve stable control of the pressure in the pneumoperitoneum space, gas filtration and purification, and effective management of surgical smoke. It is suitable for various minimally invasive surgeries, especially for operation scenarios in small cavity surgeries (such as anal and pelvic surgeries) where pressure fluctuations are extremely sensitive.

[0053] The pneumoperitoneum machine 500, as the core device for gas supply and pressure regulation, is responsible for continuously or intermittently injecting carbon dioxide gas into the patient's body to establish pneumoperitoneum, and monitors the gas output status in real time through built-in pressure sensors and flow regulation devices. The trocar 600 is inserted into a small cavity (such as the anus), and the inflator tube 100 serves as the main channel for gas transmission. A filter 200 and at least one air bladder 300 are connected to it in sequence. The two are arranged along the gas flow direction. The function of the filter 200 is to remove particles, bacteria and other impurities from the gas to ensure that the gas entering the body is clean and harmless; the air bladder 300 is used to buffer pressure fluctuations and maintain pressure stability within the pneumoperitoneum space.

[0054] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0055] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0056] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0057] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

Claims

1. A multifunctional tubing assembly for an insufflator, characterized in that, include: An air injection tube (100) is connected to a filter (200) and at least one air bladder (300). The filter (200) and the air bladder (300) are arranged sequentially along the air injection direction. The air bladder (300) is configured to suppress pressure fluctuations in the pneumoperitoneum space by changing its internal volume.

2. The multifunctional tubing assembly for an insufflator as described in claim 1, characterized in that: The airbag (300) is configured as an elastic balloon structure.

3. The multifunctional tubing assembly for an insufflator as described in claim 1, characterized in that: The airbag (300) includes a sealed outer shell (310), a piston plate (320), and an elastic element (330). The piston plate (320) is movably installed inside the sealed outer shell (310). The interior of the sealed outer shell (310) is divided into a buffer chamber (311) and a storage chamber (312) via the piston plate (320). The elastic element (330) is located in the storage chamber (312) and connected to the piston plate (320). The elastic element (330) applies a spring force to the piston plate (320) to move it toward the buffer chamber (311). The air inlet and air outlet of the airbag (300) are both connected to the buffer chamber (311).

4. A multifunctional tubing assembly for an insufflator as described in claim 1, characterized in that: The airbag (300) includes a sealed outer shell (310) and an elastic diaphragm (340). The elastic diaphragm (340) is located inside the sealed outer shell (310) and divides the interior of the sealed outer shell (310) into a first cavity (313) and a second cavity (314). The edge of the elastic diaphragm (340) is fixedly connected to the inner wall of the sealed outer shell (310). The air inlet and air outlet of the airbag (300) are both connected to the first cavity (313) or the second cavity (314).

5. A multifunctional tubing assembly for an insufflator as described in any one of claims 1 to 4, characterized in that: The air inlet and outlet of the airbag (300) are respectively provided with a first connector (350) and a second connector (360). The air injection tube (100) includes at least two hoses (110). One end of one hose (110) is connected to the outlet of the filter (200) and the other end is connected to the air inlet of the airbag (300) through the first connector (350). One end of the other hose (110) is connected to the air outlet of the airbag (300) through the second connector (360).

6. A multifunctional tubing assembly for an insufflator as described in claim 5, characterized in that: Both the first connector (350) and the second connector (360) are configured as pagoda-shaped connectors, Luer connectors, or medical quick connectors.

7. A multifunctional tubing assembly for an insufflator as described in claim 5, characterized in that: The filter (200) is configured as a standard filter or a smoke exhaust filter.

8. A multifunctional tubing assembly for an insufflator as described in claim 1, characterized in that: The volume of the air bladder (300) is greater than the volume of the pneumoperitoneum space.

9. A multifunctional tubing assembly for an insufflator as described in claim 1, characterized in that: It also includes a smoke exhaust pipe (400).

10. A pneumoperitoneum system, characterized in that, The invention includes a multifunctional tubing assembly for an insufflator as described in any one of claims 1 to 9, and further includes an insufflator (500) and a trocar (600), wherein the two ends of the air inlet tube (100) are respectively connected to the air inlet of the insufflator (500) and the trocar (600).

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