In-vitro drainage device applied to orthopedic surgery

By introducing segmented tubing and filter design into the external drainage device, the problem of drainage device blockage is solved, achieving continuity of surgery and long life of equipment, and improving the efficiency and safety of surgical orthopedic procedures.

CN224269823UActive Publication Date: 2026-05-26白洋
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
白洋
Filing Date
2025-04-03
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing external drainage devices are prone to blockage by solid substances during surgical or orthopedic procedures, leading to surgical interruptions, increasing surgical risks and time. Furthermore, negative pressure devices are easily clogged, affecting surgical efficiency and equipment lifespan.

Method used

An external drainage device was designed, comprising a drainage component that can enter the body, a drainage tube, and a filter device connected to a negative pressure device. Solid substances are filtered by setting a filter element in the drainage tube. The segmented pipeline design reduces the risk of blockage, and the filter element is replaceable to ensure the continuity of surgery.

Benefits of technology

It effectively reduces the risk of prolonged operation time, extends the service life of negative pressure equipment, improves surgical efficiency and safety, and reduces anxiety caused by blockage.

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Abstract

The utility model provides an in-vitro drainage device applied to a surgical orthopedic operation, which comprises a drainage assembly (1) capable of entering a human body and a drainage tube (2) connected with the drainage assembly capable of entering the human body, and the drainage tube is connected with a negative pressure device (3). The drainage tube (2) comprises a first tube section (4) and a second tube section (5), a filter device (6) is arranged between the first tube section (4) and the second tube section (5), a filter element (7) is arranged in the filter device, two ends of the first tube section (4) are provided with connectors (8) and (11), and two ends of the second tube section (5) are provided with connectors (9) and (10). The in-vitro drainage device applied to the orthopedic surgery can greatly reduce the risks of damage to negative pressure equipment, prolonged operation time and the like caused by blockage of the drainage device in the previous operation process.
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Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically to an external drainage device used in surgical orthopedic procedures. Background Technology

[0002] External drainage devices play an irreplaceable role in surgical orthopedic procedures. During surgery, doctors not only need to promptly remove waste fluids such as blood, exudate, and transudate, but also need to suction out soft tissue and bone debris to ensure a clear surgical field and the smooth progress of the operation.

[0003] In existing technologies, external drainage devices typically consist of a cleaning head that enters the body and a drainage tube connected to the cleaning head. The other end of the drainage tube is fitted with a filter and connected to a negative pressure absorption device via a nut. During surgery, in addition to fluids, there may be surgically removed diseased tissues, such as necrotic soft tissue and bone tissue. These solid materials, varying in size, often clog the filter connecting the drainage tube to the negative pressure device. To facilitate the surgery, it must be stopped during the procedure, and non-surgical personnel must clear any blockages at the end of the drainage tube. This not only slows down the surgery but also increases the risks and causes anxiety and unease for the patient due to the prolonged procedure.

[0004] To address these issues, those skilled in the art have connected a cleaning head to a thin tube, inserted it into a thicker tube, and made a hole in the thicker tube. The thicker tube is then fixed to one end of a conventional drainage tube. The purpose is to absorb liquid substances through the hole in the thicker tube while simultaneously preventing the removal of some solid tissue. However, the presence of the thinner tube increases the pressure of the cleaning fluid, often causing malfunctions in the negative pressure equipment and affecting the procedure.

[0005] CN203183845U discloses an integrated neurosurgical drainage tube that expands the drainage area by dividing the drainage tube into two drainage branches, reducing drainage obstruction caused by blood clots or blockages. However, this drainage tube can still cause blockage, and it can also cause blockage of the negative pressure device connected to the drainage tube, reducing its service life. Utility Model Content

[0006] This utility model provides a brief overview of the chosen inventive concepts, which are further described in the detailed description section below. This utility model summary is not intended to identify key or essential features of the claimed subject matter, nor to help define the scope of the claimed subject matter.

[0007] The purpose of this invention is to overcome the various defects of the external drainage tube in the existing technology, which may lead to temporary interruption during the operation, bring unnecessary risks to the operation, and increase the anxiety and unease of patients caused by the long operation time.

[0008] To achieve the above objectives, this utility model provides an external drainage device for surgical orthopedic procedures, employing the following technical solution: An external drainage device for surgical procedures includes a drainage component (1) that can enter the body, a drainage tube (2) connected to the drainage component, and a drainage tube connected to a negative pressure device (3). The drainage tube (2) includes a first tube segment (4) and a second tube segment (5). A filter device (6) is installed between the first tube segment (4) and the second tube segment (5). The filter device is equipped with a filter element (7). The first tube segment (4) has a first connector (8) and a second connector (11) at both ends, and the second tube segment (5) has a third connector (9) and a fourth connector (10) at both ends.

[0009] Beneficial effects of this utility model

[0010] 1. This utility model is applied to an external drainage device for surgical orthopedic procedures, which can greatly reduce the risk of prolonged operation time due to blockage of negative pressure equipment during previous surgeries.

[0011] 2. The filter device (6) of this utility model can extend the service life of the negative pressure equipment, and at the same time, it can improve the efficiency of surgery and reduce the treatment risk caused by pipe blockage by conveniently updating the filter. Attached Figure Description

[0012] Figure 1 Schematic diagram of the external drainage device of the present invention

[0013] Explanation of reference numerals in the attached figures

[0014] 1-Entering body drainage component, 2-Drainage tube, 4-First tube segment, 5-Second tube segment, 6-Filter device, 7-Filter element, 8-First connector, 9-Third connector, 10-Fourth connector, 11-Second connector. Detailed Implementation

[0015] The following detailed descriptions are provided to help readers gain a comprehensive understanding of the flushing and drainage tube described in this utility model. However, after understanding this disclosure, various changes, modifications, and equivalents of the flushing and drainage tube described herein will be apparent. Furthermore, for clarity and brevity, descriptions of functions and structures known in the art may be omitted.

[0016] The features described in this invention may be implemented in different forms and should not be construed as limited to the examples described in this invention. Rather, the examples described in this invention are provided merely to illustrate some of the many feasible ways of implementing the flushing and drainage device described in this invention, which will be apparent upon understanding this disclosure.

[0017] It should be noted that in this invention, the term "may" is used in relation to examples or embodiments. For example, regarding what an example or embodiment may include or implement, it means that there exists at least one example or embodiment that includes or implements such a feature, but all examples and embodiments are not limited thereto.

[0018] As used in this invention, the term “and / or” includes any one of the associated listed items and any combination of any two or more items; similarly, “at least one of…” includes any one of the associated listed items and any combination of any two or more items.

[0019] The terminology used in this invention is for describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, "a," "an," and "the" are intended to include the plural forms as well. The terms "comprising," "including," and "having" indicate the presence of the stated features, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, components, elements, and / or combinations thereof.

[0020] In this utility model, "one end" and "the other end" are used for ease of description and are relative spatial concepts.

[0021] "Drainage components that can enter the body" refer to those that can enter the lesion inside the patient's body to absorb accumulated fluid and other pollutants, such as commonly used medical guide needles, but are not limited to these.

[0022] Due to variations in manufacturing processes and / or tolerances, variations in the shape shown in the accompanying drawings may occur. Therefore, the examples described in this invention are not limited to the specific shapes shown in the drawings, but include shape variations that may occur during manufacturing.

[0023] The features of the examples described in this invention can be combined in various ways that will become apparent upon understanding this disclosure. Furthermore, although the examples described in this invention have multiple shapes, other shapes will also be possible upon understanding this disclosure.

[0024] It is understood that the accompanying drawings are for the purpose of clearly describing the present invention, and some dimensions differ from the actual dimensions in order to clearly describe the present invention, rather than representing actual proportions.

[0025] In the following, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0026] See attached document Figure 1 This utility model provides an external drainage device for surgical orthopedic procedures, comprising a drainage component (1) that can enter the body, a drainage tube (2) connected to the drainage component, and a drainage tube connected to a negative pressure device (3). The drainage tube (2) includes a first tube segment (4) and a second tube segment (5). A filter device (6) is installed between the first tube segment (4) and the second tube segment (5). The filter device is equipped with a filter element (7). The first tube segment (4) has a first connector (8) and a second connector (11) at both ends, and the second tube segment (5) has a third connector (9) and a fourth connector (10) at both ends.

[0027] Preferably, the drainage tube can be made of metal or plastic, with PVC being the most preferred material.

[0028] Preferably, the filter device (6) and the first pipe section (4) and the second pipe section (5) in the drainage pipe adopt movable connection, snap-fit, fixed sleeve, internal thread and external thread fit, etc., but are not limited to this.

[0029] Preferably, the filter device (6) can be elliptical, conical, square, cylindrical, etc., but is not limited thereto.

[0030] Preferably, the filter element (7) in the filter device can be a mesh structure, and the filter element can be one or more layers.

[0031] The working process of this utility model is as follows: Example 1

[0032] Example 1

[0033] During the surgery, the drainage component (1) is inserted into the wound working area, and the negative pressure device (3) is activated. The blood, exudate, leakage, and some soft tissue or bone debris drawn out by the drainage component (1) enter the first tube section (4). After being filtered by the filter device (6), the solid part is adsorbed by the filter element (7), and the filtrate is drained into the negative pressure device through the second tube section (5). When the solid blockage on the filter element (7) causes the drainage effect to decrease, the filter element (7) is replaced, thus ensuring the smooth progress of the surgery.

[0034] While exemplary embodiments have been shown and described above, it will be apparent to those skilled in the art that modifications and variations can be made without departing from the scope of the present invention as defined by the appended claims. Therefore, various types of substitutions, modifications, and alterations can be made by those skilled in the art without departing from the spirit and scope of this disclosure as defined by the claims, and such substitutions, modifications, and alterations will be considered to fall within the scope of this disclosure.

Claims

1. An extracorporeal drainage device for use in surgical orthopedic procedures, comprising a drainage assembly (1) which can be introduced into the body, a drainage tube (2) connected to the drainage assembly introduced into the body, and a drainage tube connected to a negative pressure device (3), characterized in that The drainage tube (2) includes a first tube section (4) and a second tube section (5). A filter device (6) is installed between the first tube section (4) and the second tube section (5). A filter element (7) is installed in the filter device (6). A first connector (8) and a second connector (11) are provided at both ends of the first tube section (4). A third connector (9) and a fourth connector (10) are provided at both ends of the second tube section (5).

2. The in-vitro drainage device for use in surgical orthopedic procedures according to claim 1, characterized in that, The drainage tube (2) is made of metal or plastic.

3. The external drainage device for use in surgical orthopedic procedures of claim 1, wherein, The drainage tube (2) is made of PVC material.

4. The external drainage device for use in surgical orthopedic procedures of claim 1, wherein, The filter device (6) and the first pipe section (4) and the second pipe section (5) in the drainage pipe are connected by movable connection, snap-fit, fixed sleeve or internal and external thread.

5. An external drainage device for use in orthopedic surgery according to claim 1, characterized in that, The filter device (6) can be elliptical, conical, square or cylindrical.

6. The in-vitro drainage device for use in surgical orthopedic procedures as claimed in claim 1, wherein, The filter element (7) can be a mesh structure, and can be one or more layers.