Disposable surgical filter

Abstract

The utility model relates to a disposable surgical filter, which belongs to the technical field of surgical filters and comprises a catheter, a flow controller and a filter. The air inlet connector and the air outlet connector are connected to the two ends of the outer filtering bin, an inner filtering bin is further arranged in the filter, and an efficient filtering medium is arranged in the inner filtering bin; a plurality of outer bin filtering layers are distributed between the inner wall of the outer filtering bin and the outer wall of the inner filtering bin at equal intervals, and a guide pipe is further arranged at the top end of the inner filtering bin in a penetrating mode; according to the design, a double-layer filtering bin structure is adopted, an efficient filtering medium is adopted for inner-layer filtering, the inner-layer filtering is composed of a plurality of glass fiber layers and activated carbon, smells in operation smoke can be adsorbed, fine smoke particles with the particle size larger than 0.3 micrometer can be effectively adsorbed, then adsorption and filtering of smoke gas can be further improved through outer-layer filtering, and the filtering quality is improved; and a multi-interface design is adopted, so that clinical requirements of different equipment can be met.

Description

Technical Field

[0001] This invention belongs to the field of surgical filter technology, specifically relating to disposable surgical filters. Background Technology

[0002] Disposable surgical filters are essential medical devices used during surgery. They are primarily used to filter harmful substances, particles, and fumes from the air to ensure air quality in the operating room and protect medical staff from harmful substances such as surgical fumes, gases, and bacteria. These filters are typically installed in surgical tubing, gas lines, or other medical devices to achieve highly efficient air filtration.

[0003] During laparoscopic surgery, filters are used in conjunction with insufflators or negative pressure suction devices to filter harmful substances in surgical smoke. However, existing disposable surgical filters have a single internal filter medium, which has limited filtering effect on harmful substances in smoke and cannot effectively adsorb harmful gases or particles in smoke. Moreover, the filter connectors are also relatively simple and cannot meet the clinical needs of different devices.

[0004] To address the aforementioned issues, this invention provides a disposable surgical filter. Utility Model Content

[0005] The purpose of this invention is to provide a disposable surgical filter that can solve the problems mentioned in the background art.

[0006] The specific technical solution adopted in this utility model is as follows:

[0007] A disposable surgical filter includes a catheter and a flow controller mounted on the catheter, with the filter connected to one end of the catheter;

[0008] The filter includes an outer filter chamber and an air inlet connector and an air outlet connector connected to both ends of the outer filter chamber. The filter also has an inner filter chamber, which contains a high-efficiency filter medium.

[0009] The inner wall of the outer filter chamber and the outer wall of the inner filter chamber are equally spaced together by multiple outer filter layers.

[0010] A guide tube is also installed at the top of the inner filter chamber.

[0011] The present invention is further configured such that the air inlet connector and the air outlet connector have the same structure, the air inlet connector extends through the outer filter chamber to the inner top of the inner filter chamber and is connected thereto, and the air outlet connector is connected to the interior of the outer filter chamber.

[0012] The present invention is further configured such that the high-efficiency filter medium comprises two layers of glass fiber installed inside the inner filter chamber, and activated carbon filled between the two layers of glass fiber.

[0013] The present invention is further configured such that: the upper end of the guide tube is located at the top of the inner filter chamber and above the uppermost outer filter layer, and the bottom end of the guide tube penetrates through the two glass fiber layers and extends to the inner bottom of the inner filter chamber.

[0014] This utility model is further configured such that the outer filter layer is made of polyester fiber.

[0015] This utility model is further configured such that: both the air inlet connector and the air outlet connector are frustum-shaped tubular structures, cylindrical tubular structures, or double-tube structures.

[0016] The technical effects achieved by this utility model are as follows:

[0017] This practical disposable surgical filter adopts a double-layer filter chamber structure. The inner layer uses a high-efficiency filter medium composed of multiple layers of glass fiber and activated carbon, which can not only adsorb the odor in surgical smoke, but also effectively adsorb fine smoke particles larger than 0.3μm. Secondly, the outer layer filter can further improve the adsorption and filtration of smoke gases, thus improving the filtration quality.

[0018] This practical disposable surgical filter features a multi-port design, allowing for the selection of connectors of appropriate shapes and sizes to meet the needs of different clinical equipment. This facilitates the connection of the filter to air injection or exhaust filtration devices, satisfying the clinical requirements of various devices. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this practical application;

[0020] Figure 2 This is a diagram of the internal structure of the filter used in this practical application;

[0021] Figure 3 This is a diagram showing the filter connector in this practical application.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Conduit; 2. Flow controller; 3. Filter; 31. Inlet connector; 32. Outer filter chamber; 33. Outer filter layer; 34. Inner filter chamber; 35. Fiberglass layer; 36. Activated carbon; 37. Guide tube; 38. Outlet connector; Detailed Implementation

[0024] To make the purpose and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific implementations of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] like Figure 1 As shown, a disposable surgical filter includes a catheter 1 and a flow controller 2 installed on the catheter 1. The flow controller 2 can adjust the air delivery volume of the catheter 1, stabilizing the surgical air pressure while facilitating smoke discharge. One end of the catheter 1 is also connected to a filter 3. The filter 3 includes an outer filter chamber 32 and an air inlet connector 31 and an air outlet connector 38 connected to both ends of the outer filter chamber 32. Both the air inlet connector 31 and the air outlet connector 38 are frustum-shaped tubular structures, cylindrical tubular structures, or double-tube structures. Figure 3 The three types of connectors shown (i.e., air inlet connector 31 and air outlet connector 38) are distributed from left to right. The connector of filter 3 can be a frustum-shaped tubular structure, i.e., the cross section is trapezoidal, or cylindrical. When connected to the air injection or exhaust filter device, the connecting air pipe is directly sleeved on the frustum-shaped or cylindrical connector.

[0026] Alternatively, there is a double-tube structure, where the inner and outer tubes are integrated. When connecting to an air injection or exhaust filter, the connecting tube can be directly sleeved between the inner and outer tubes for quick connection. It should be noted that... Figure 3 The three types of connectors shown also come in different sizes. You can choose the corresponding shape and size of connector according to the different air injection or exhaust filter devices being connected to, so as to meet the clinical needs of different devices.

[0027] like Figure 2 As shown, the filter 3 is also provided with an inner filter chamber 34. The inner filter chamber 34 is provided with a high-efficiency filter medium. The high-efficiency filter medium includes two layers of glass fiber 35 installed inside the inner filter chamber 34, and activated carbon 36 filled between the two layers of glass fiber 35. The combination of multiple layers of glass fiber 35 and activated carbon 36 can facilitate the preliminary filtration of the smoke generated during the operation. It can not only adsorb the odor in the surgical smoke, but also effectively adsorb fine smoke particles larger than 0.3μm.

[0028] like Figure 2As shown, multiple outer filter layers 33 are evenly distributed between the inner wall of the outer filter chamber 32 and the outer wall of the inner filter chamber 34. The outer filter layers 33 are made of high-efficiency polyester fiber filter material, which can effectively filter particles of 0.3μm and above. A guide tube 37 is also provided through the top of the inner filter chamber 34. The upper end of the guide tube 37 is located at the top of the inner filter chamber 34 and above the uppermost outer filter layer 33. The bottom end of the guide tube 37 passes through two layers of glass fiber 35 and extends to the inner bottom of the inner filter chamber 34. The air inlet connector 31 and the air outlet connector 38 have the same structure. The air inlet connector 31 passes through the outer filter chamber 32 and extends to the inner top of the inner filter chamber 34 and is connected to it. The air outlet connector 38 is connected to the inside of the outer filter chamber 32. The guide tube 37 can realize the communication between the inner filter chamber 34 and the outer filter chamber 32, which facilitates the guidance of the pre-filtered surgical smoke gas into the outer filter chamber 32.

[0029] The working principle of this utility is as follows: During the operation, a connector of the corresponding shape and size is selected, and the filter is connected to the air injection or exhaust filter device. The smoke generated during the operation is transported to the filter 3 through the conduit 1. The filter 3 is then transported to the top of the inner filter chamber 34 through the air inlet connector 31. The smoke is filtered by the high-efficiency filter medium, which can effectively adsorb the fine smoke particles in the smoke. The adsorbed and filtered gas enters from the bottom of the guide tube 37 and is guided to the top of the outer filter chamber 32. It then undergoes secondary filtration through multiple outer chamber filter layers 33, thereby further filtering out residual smoke particles in the smoke, thus improving the filtration and adsorption effect of the smoke during the operation. Finally, the smoke is discharged through the air outlet connector 38 at the bottom of the outer filter chamber 32.

[0030] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A disposable surgical filter, comprising a catheter (1) and a flow controller (2) mounted on the catheter (1), characterized in that: One end of the conduit (1) is also connected to a filter (3); The filter (3) includes an outer filter chamber (32) and an air inlet connector (31) and an air outlet connector (38) connected to both ends of the outer filter chamber (32). The filter (3) also has an inner filter chamber (34) inside, and the inner filter chamber (34) is provided with a high-efficiency filter medium. Multiple outer filter layers (33) are distributed at equal intervals between the inner wall of the outer filter chamber (32) and the outer wall of the inner filter chamber (34). A guide tube (37) is also provided through the top of the inner filter chamber (34).

2. The disposable surgical filter according to claim 1, characterized in that: The air inlet connector (31) and the air outlet connector (38) have the same structure. The air inlet connector (31) extends through the outer filter chamber (32) to the inner top of the inner filter chamber (34) and is connected to it. The air outlet connector (38) is connected to the interior of the outer filter chamber (32).

3. The disposable surgical filter according to claim 1, characterized in that: The high-efficiency filter medium includes two glass fiber layers (35) installed inside the inner filter chamber (34), and activated carbon (36) filled between the two glass fiber layers (35).

4. The disposable surgical filter according to claim 3, characterized in that: The upper end of the guide tube (37) is located at the top of the inner filter chamber (34) and above the uppermost outer filter layer (33). The bottom end of the guide tube (37) penetrates two glass fiber layers (35) and extends to the inner bottom of the inner filter chamber (34).

5. The disposable surgical filter according to claim 1, characterized in that: The outer filter layer (33) is made of polyester fiber.

6. The disposable surgical filter according to claim 1, characterized in that: The air inlet connector (31) and air outlet connector (38) are both frustum-shaped tubular structures, cylindrical tubular structures, or double-tube structures.

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