Single hole multi-channel obturator

Abstract

The utility model relates to the field of medical apparatus and instruments, especially a single-hole multi-channel airtight device, the single-hole multi-channel airtight device of the utility model includes the cover of circular, be equipped with a plurality of vertical through instrument channel on the cover, the wall surface of instrument channel extends protrude to the cover one side, every instrument channel all is equipped with the seal structure that can extrude through, the cover is connected with the seal plug that corresponds to every instrument channel one to one, the advantage: simple and reasonable structure design, can effectively block the port of incision protection sleeve, simultaneously, utilize seal structure can keep the sealability of instrument channel in the process of instrument in and out, will not cause gas leakage, simultaneously, utilize seal plug can further seal instrument channel, achieve better sealability when no instrument in and out.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a single-hole multi-channel sealing device. Background Technology

[0002] Laparoscopic surgery is a minimally invasive surgical procedure that uses a laparoscope (a small camera) and specialized instruments to perform surgical operations through a small incision in the abdominal wall. Compared to traditional open surgery, laparoscopic surgery has advantages such as less trauma, faster recovery, and fewer complications, and therefore has been widely used in modern surgery. During laparoscopic surgery, it is usually necessary to maintain gas in the abdominal cavity to facilitate the surgical procedure.

[0003] Clinically, during surgery, a protective incision sheath is placed at the abdominal wall incision site. A single-port multi-channel trocar is then inserted into the outer port of the sheath. Various instruments are inserted through multiple instrument channels on the single-port multi-channel trocar, and the airtightness of these channels is used to maintain pneumoperitoneum. However, in clinical practice, the instrument channels of conventional single-port multi-channel trocars are located at the upper part of the trocar body, appearing as multiple upward-extending or inclined tubular channels. Because the height of the channel openings is higher than the trocar body, the instruments are actually inserted above the trocar body. Often, multiple instruments, after entering through different channels, will "interfere" with each other at the plane of the trocar body, which reduces the surgical space. In addition, the instrument channels of existing trocars are designed with a cross-shaped valve distribution for sealing. After frequent insertion and removal of instruments, gaps between the valves may not be effectively sealed, leading to gas leakage. This affects the gas state in the abdominal cavity (i.e., affects the maintenance of pneumoperitoneum) and has an adverse impact on subsequent surgeries.

[0004] Therefore, it is necessary to develop a single-hole multi-channel sealing device to overcome the above-mentioned technical problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a single-hole multi-channel sealing device, which effectively overcomes the defects of the prior art.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] A single-hole multi-channel sealing device includes a circular cover with multiple vertically penetrating instrument channels. The walls of the instrument channels extend and protrude from the cover. Each instrument channel has a squeeze-through sealing structure. A sealing plug corresponding to each instrument channel is connected to the cover.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the edge of the cover has an annular fitting portion protruding downwards on its side.

[0010] Furthermore, the outer surface of the aforementioned fitting portion is provided with an annular sealing groove, the cross-section of which is arc-shaped.

[0011] Furthermore, the aforementioned sealing structure includes six fan-shaped sealing valves, which are distributed circumferentially and connected to the inner wall of the aforementioned instrument channel.

[0012] Furthermore, the aforementioned sealing valve is a silicone component.

[0013] Furthermore, a flexible connecting strip is connected to the edge of the cover near each of the aforementioned instrument channels, and one end of the sealing plug is connected to the connecting strip.

[0014] Furthermore, the aforementioned sealing plug is a silicone soft plug.

[0015] Furthermore, the aforementioned sealing structure is disposed inside one end port of the instrument channel extension.

[0016] Furthermore, a force application point is provided on the other edge of the aforementioned cover.

[0017] Furthermore, a pull ring is provided on each of the opposite sides of one edge of the cover, and the pull rings respectively constitute the force application point.

[0018] The beneficial effects of this utility model are: the structural design is simple and reasonable, which can effectively block the port of the incision protective sleeve. At the same time, the sealing structure can maintain the sealing of the instrument channel during the instrument entry and exit process, and will not cause gas leakage. In addition, the sealing plug can further seal the instrument channel, achieving good sealing when no instrument is entering or exiting. Attached Figure Description

[0019] Figure 1 This is a top view of the structure of the single-hole multi-channel sealing device of this utility model;

[0020] Figure 2 for Figure 1 Structural cross-sectional view of the AA surface.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Cover; 11. Instrument passage; 12. Sealing structure; 13. Sealing plug; 14. Fitting part; 15. Force application point; 111. Connecting strip; 121. Sealing valve; 141. Sealing groove. Detailed Implementation

[0023] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0024] Example

[0025] like Figure 1 and 2 As shown, the single-hole multi-channel closure device of this embodiment includes a circular cover 1. The cover 1 is provided with a plurality of vertically penetrating instrument channels 11. The wall of the instrument channel 11 extends and protrudes from the side of the cover 1. Each instrument channel 11 is provided with a sealing structure 12 that can be squeezed through. The cover 1 is connected with a sealing plug 13 corresponding to each instrument channel 11.

[0026] The main body of the single-port multi-channel closure device in this embodiment is a flat cover 1. During use, it is sealed at the port of the incision protection sleeve placed at the small abdominal incision. Its plane is almost flush with the abdominal wall. Therefore, the inlet of the instrument channel 11 is also located almost flush with the abdominal wall. During the insertion of instruments through the instrument channel 11, especially when multiple instruments are inserted through multiple instrument channels 11, the "interference and interference" of instruments occurs below the abdominal wall. Compared to traditional single-port multi-channel trocars, this effectively reduces the location of instrument "interference and interference," significantly increasing the surgical space when multiple instruments are used simultaneously. This indirectly shortens the operation time, promotes a smoother operation, and reduces surgical risks to some extent. Furthermore, the sealing plug 13 is designed to block the instrument channel 11 during periods when no instruments are inserted. Even if the performance of the sealing structure 12 decreases due to frequent instrument insertion and removal, the sealing plug 13 maintains good sealing of the instrument channel 11, thereby maintaining pneumoperitoneum conditions within the abdominal cavity. Overall, the structural design is relatively simple and reasonable, and compared with the existing single-port multi-channel trocars, it has a more positive effect on promoting laparoscopic surgery.

[0027] In a preferred embodiment, the edge of the cover 1 is provided with an annular fitting portion 14 protruding toward one side.

[0028] In the above implementation, the design of the fitting part 14 facilitates the sealed assembly of the cover 1 and the port of the cut-out protective sleeve.

[0029] In this embodiment, the cover 1 and the fitting part 14 are made of the same material and are integrally formed.

[0030] In this embodiment, the cover 1 can be designed to "sink" relative to the fitting part 14, that is, the height of the other side of the cover 1 can be lower than the height of the same side of the fitting part 14.

[0031] In a preferred embodiment, the outer surface of the fitting part 14 is provided with an annular sealing groove 141, and the cross-section of the sealing groove 141 is arc-shaped.

[0032] In the above implementation scheme, the shape of the sealing groove 141 is adapted to the shape of the ring in the port of the cut protective sleeve, so as to achieve a tighter fit between the two and improve the sealing performance.

[0033] In a preferred embodiment, the sealing structure 12 includes at least six fan-shaped sealing valves 121, which are distributed circumferentially and connected to the inner wall of the instrument channel 11.

[0034] In the above implementation scheme, the design of six fan-shaped sealing valves 121 improves the sealing performance of traditional cross-shaped valves, and enhances the sealing performance at the edges of each other. At the same time, compared with the instrument channel of a conventional puncture device, the design of this sealing structure 12 does not increase the resistance when the instrument passes through, that is, the passage of the instrument is almost unaffected.

[0035] In this embodiment, the sealing valve 121 is a silicone component.

[0036] In this embodiment, a flexible connecting strip 111 is connected to the edge of the cover 1 at a position close to each of the instrument channels 11, and one end of the sealing plug 13 is connected to the connecting strip 111. The connecting strip 111 can be made of flexible silicone strip, which can be flexibly bent and deformed according to usage requirements.

[0037] In this embodiment, the sealing plug 13 is a silicone soft plug. When sealing is required, the sealing plug 13 is inserted into the port of the instrument channel 11 by compression, achieving close contact with the inner wall of the instrument channel 11 port, resulting in good sealing performance.

[0038] In this embodiment, one end of the sealing plug 13 can be designed as a cone shape, which facilitates the entry of one end of the sealing plug 13 into the instrument channel 11. The other end edge of the sealing plug 13 is connected to the connecting strip 111. At the same time, a flat pinching part is provided at the other end edge of the sealing plug 13, which makes it easy to pinch the pinching part with your fingers, thereby pulling the sealing plug 13 out of the instrument channel 11.

[0039] In this embodiment, the sealing structure 12 is disposed inside one end port of the instrument channel 11.

[0040] As a preferred embodiment, a force application point 15 is provided at the other edge of the cover 1.

[0041] In the above implementation scheme, when the instruments need to be removed after the operation, external force can be applied through the force application point 15 to remove the cover 1 from the incision protective sleeve, which is relatively convenient.

[0042] In a preferred embodiment, a pull ring is provided on each of the opposite sides of one edge of the cover 1, and the pull rings respectively constitute the force application point 15.

[0043] In the above implementation scheme, medical staff can use their fingers to pinch the pull rings on both sides and then apply torque and pulling force to make the cover 1 quickly detach from the incision protective sleeve, making the operation more convenient.

[0044] It should be noted that, in this embodiment, the dimensions of the multiple instrument channels 11 can be designed to be inconsistent to facilitate the entry and exit of instruments of different sizes. The shapes of the instrument channels 11 can also be designed to be different, as long as they are suitable for the entry and exit of instruments; these will not be elaborated upon here.

[0045] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, 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, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to 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.

[0048] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0049] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0050] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A single-hole multi-channel sealing device, characterized in that: The device includes a circular cover (1) with multiple vertically penetrating instrument channels (11) on the cover (1). The wall of each instrument channel (11) extends and protrudes towards the cover (1). Each instrument channel (11) is provided with a squeeze-through sealing structure (12). A sealing plug (13) corresponding to each instrument channel (11) is connected to the cover (1).

2. The single-hole multi-channel sealing device according to claim 1, characterized in that: The edge of the cover (1) is provided with an annular fitting part (14) protruding towards one side.

3. A single-hole multi-channel sealing device according to claim 2, characterized in that: The outer surface of the fitting part (14) is provided with an annular sealing groove (141), and the cross-section of the sealing groove (141) is arc-shaped.

4. A single-hole multi-channel sealing device according to claim 1, characterized in that: The sealing structure (12) includes six fan-shaped sealing valves (121) distributed circumferentially and connected to the inner wall of the instrument channel (11).

5. A single-hole multi-channel sealing device according to claim 4, characterized in that: The sealing valve (121) is a silicone component.

6. A single-hole multi-channel sealing device according to claim 1, characterized in that: The edge of the cover (1) is connected to a flexible connecting strip (111) at a position close to each of the instrument channels (11), and one end of the sealing plug (13) is connected to the connecting strip (111).

7. A single-hole multi-channel sealing device according to claim 1, characterized in that: The sealing plug (13) is a silicone soft plug.

8. A single-hole multi-channel sealing device according to any one of claims 1 to 7, characterized in that: The sealing structure (12) is located inside one end of the extension port of the instrument channel (11).

9. A single-hole multi-channel sealing device according to any one of claims 1 to 7, characterized in that: A force application point (15) is provided on the other edge of the cover (1).

10. A single-hole multi-channel sealing device according to claim 9, characterized in that: A pull ring is provided on each of the opposite sides of one edge of the cover (1), and the pull rings respectively constitute the force application point (15).

Images