Aspirator for single-port thoracoscopic surgery

Abstract

The aspirator for the single-hole thoracoscopic surgery comprises an aspiration head and a catheter, the aspiration head comprises a first aspiration portion and a second aspiration portion which are sequentially communicated in the aspiration direction, the inner diameter of the first aspiration portion is gradually increased in the aspiration direction, and the first aspiration portion is formed by jointly enclosing a closed face and a hole opening face. Three suction holes are formed in the perforated surface, and are arranged at intervals in the circumferential direction of the perforated surface; the inner diameter of the second suction part is gradually reduced in the suction direction, and the second suction part is communicated with the negative pressure device through a catheter. According to the utility model, the layout of the suction head is optimized, the first suction part is enclosed by the closed surface and the perforated surface, and the perforated surface is provided with the suction holes which are simple in number and reasonable in layout, so that an enough suction area is ensured, unnecessary air leakage channels are reduced, and the air leakage risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a suction device for single-port thoracoscopic surgery. Background Technology

[0002] Single-port thoracoscopic surgery involves fewer incisions; the entire procedure requires only a small 3-4cm incision, resulting in less damage and faster recovery. Surgical instruments are inserted into the thoracic cavity through this small incision.

[0003] During single-port thoracoscopic surgery, a suction device is required to remove effusion. Existing suction devices consist of a negative pressure device and a suction catheter, which are connected. The suction catheter is a cylindrical structure with an opening only at its tip. When connected to the negative pressure device, the effusion is suctioned away through the opening and the catheter. However, during effusion removal, tissue debris and other debris can easily clog the opening, leading to low suction efficiency and affecting the surgical progress.

[0004] Furthermore, application number CN220025725U discloses a suction catheter and a suction device for single-port thoracoscopic surgery. Although multiple holes are made on the side wall of the suction head to improve the continuity and reliability of fluid suction, the problem of suction interruption caused by end-hole blockage of the suction head is alleviated to some extent.

[0005] However, the following technical problems still exist: the design of the port ring being set on the entire side wall of the suction head is unreasonable. The excessive number of ports makes the suction head prone to air leakage during operation, which may cause air or liquid from non-target areas to be sucked in through the ports, reducing the suction efficiency of the target fluid and affecting the accuracy of the surgical operation.

[0006] In view of the above, this utility model is hereby proposed. Utility Model Content

[0007] The purpose of this invention is to provide a suction device for single-port thoracoscopic surgery, addressing the design flaws of existing suction devices. Excessive number of ports in the design makes the suction head prone to air leakage during operation, allowing air or liquid from non-target areas to be drawn in, reducing the suction efficiency of the target fluid and affecting the precision of the surgical procedure. The preferred technical solutions provided by this invention offer numerous technical advantages, which are detailed below.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] This utility model provides a suction device for single-port thoracoscopic surgery, comprising a suction head and a catheter. The suction head includes a first suction section and a second suction section connected sequentially along the suction direction. The inner diameter of the first suction section gradually increases along the suction direction. The first suction section is formed by a closed surface and an open surface, and the open surface has three suction holes, which are arranged circumferentially along the open surface. The inner diameter of the second suction section gradually decreases along the suction direction and is connected to a negative pressure device through the catheter.

[0010] Preferably, the suction hole includes a first suction hole, a second suction hole, and a third suction hole, the first suction hole, the second suction hole, and the third suction hole are arranged circumferentially at intervals along the opening surface, and the width of the second suction hole is greater than the width of the first suction hole and the third suction hole.

[0011] Preferably, the first suction hole, the second suction hole, and the third suction hole all extend along the suction direction.

[0012] Preferably, the first suction hole, the second suction hole, and the third suction hole are all elongated holes with rounded edges at their ends.

[0013] Preferably, the opening surface and the closing surface are symmetrically arranged.

[0014] Preferably, the suction head is integrally formed with the catheter, and the outside of the catheter is provided with an insulating layer.

[0015] Preferably, the connection between the second suction part and the first suction part is smoothly transitioned.

[0016] Preferably, the inner walls of the first suction hole, the second suction hole, and the third suction hole are all provided with protrusions, and there are multiple protrusions, which are arranged continuously or at intervals along their inner walls.

[0017] Preferably, the protrusion includes a hemispherical protrusion or a conical protrusion.

[0018] Preferably, the suction port end face of the suction head is curved.

[0019] The preferred technical solution of this utility model can also produce at least the following technical effects:

[0020] This invention effectively avoids the design flaws of existing suction devices. Excessive holes in the design make the suction head prone to air leakage during operation, allowing air or liquid from non-target areas to be drawn in, reducing the suction efficiency of the target fluid and affecting the precision of the surgical procedure. This invention provides a suction device for single-port thoracoscopic surgery, including a suction head and a catheter. The suction head includes a first suction section and a second suction section connected sequentially along the suction direction. The inner diameter of the first suction section gradually increases along the suction direction and is formed by a closed surface and an open surface. Three suction holes are provided on the open surface and are spaced circumferentially along the open surface. The inner diameter of the second suction section gradually decreases along the suction direction and is connected to a negative pressure device via a catheter. This invention optimizes the layout of the suction head. The first suction section is formed by a closed surface and an open surface, and the open surface has a simplified and rationally arranged number of suction holes, ensuring sufficient suction area while reducing unnecessary air leakage channels and lowering the risk of leakage. Furthermore, the inner diameter of the first suction section gradually increases along the suction direction, creating a large negative pressure area at the suction head's inlet end face, quickly capturing and guiding the accumulated liquid in. The inner diameter of the second suction section gradually decreases to accelerate the liquid before it enters the conduit, improving suction efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the first suction device for single-port thoracoscopic surgery provided by this utility model;

[0023] Figure 2 This is a schematic diagram of the closed surface of the first suction device for single-port thoracoscopic surgery provided by this utility model;

[0024] Figure 3 This is a schematic diagram of the opening surface of the first type of suction device for single-port thoracoscopic surgery provided by this utility model;

[0025] Figure 4 This is a cross-sectional view of the first suction device for single-port thoracoscopic surgery provided by this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the second type of suction device for single-port thoracoscopic surgery provided by this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the third type of suction device for single-port thoracoscopic surgery provided by this utility model.

[0028] In the picture:

[0029] 1. Suction head;

[0030] 11. First suction part; 111. Suction port end face; 112. Closed surface; 113. Opening surface; 1131. First suction hole; 1132. Second suction hole; 1133. Third suction hole; 1134. Rounded edge;

[0031] 12. Second attraction section;

[0032] 2. Conduit; 3. Insulation layer; 4. Hemispherical protrusion; 5. Conical protrusion. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] This utility model provides a suction device for single-port thoracoscopic surgery, including a suction head and a catheter. The suction head includes a first suction part and a second suction part connected sequentially along the suction direction. The inner diameter of the first suction part gradually increases along the suction direction. The first suction part is formed by a closed surface and an open surface, and a suction hole is provided on the open surface. The number of suction holes is three, and they are arranged at intervals along the circumference of the open surface. The inner diameter of the second suction part gradually decreases along the suction direction, and it is connected to a negative pressure device through a catheter.

[0035] By optimizing the layout of the suction head, the first suction section is formed by a closed surface and an open surface, with a streamlined and rationally arranged number of suction holes on the open surface. This ensures sufficient suction area while reducing unnecessary leakage channels and lowering the risk of leakage. Furthermore, the inner diameter of the first suction section gradually increases along the suction direction, creating a large negative pressure area at the suction port end face of the suction head, quickly capturing and guiding the accumulated liquid in. The inner diameter of the second suction section gradually decreases to accelerate the liquid before it enters the conduit, improving suction efficiency.

[0036] As an optional implementation, the suction hole includes a first suction hole, a second suction hole, and a third suction hole, which are arranged circumferentially at intervals along the opening surface, and the width of the second suction hole is greater than the width of the first and third suction holes.

[0037] With this configuration, the suction coverage of the second suction hole is greater than that of the first and third suction holes, thus optimizing the suction distribution and improving suction efficiency while ensuring a sufficient suction area.

[0038] As an optional implementation, the first suction hole, the second suction hole, and the third suction hole all extend along the suction direction.

[0039] With this configuration, during suction operation, the accumulated fluid will be smoothly drawn into the suction head along the orifice shapes of the first, second, and third suction holes.

[0040] As an optional implementation, the first suction hole, the second suction hole, and the third suction hole are all elongated holes with rounded edges at their ends.

[0041] Furthermore, the first and third suction holes are located on both sides of the second suction hole, and both have the same specifications: a length of 3mm, a width of 1mm, and an end edge with a radius of 0.5mm.

[0042] The second suction hole is 3mm long and 1.5mm wide, with a rounded edge of 0.75mm radius at the end to increase the suction coverage area.

[0043] The rounded edges of the first, second, and third suction holes reduce damage to surrounding tissues and improve the safety of the surgical procedure.

[0044] As an optional implementation, the opening surface and the closing surface are arranged symmetrically.

[0045] This design reduces unnecessary air leakage channels and prevents air leakage due to uneven pressure during the suction process. At the same time, three suction holes are opened on the opening surface to ensure sufficient suction area while reducing the risk of air leakage.

[0046] As an alternative implementation, the suction head and the catheter are integrally formed, and the outside of the catheter is provided with an insulating layer.

[0047] Furthermore, the insulation layer is made of silicone, which improves safety and comfort during use.

[0048] The suction head and the catheter are integrally molded, which improves the structural strength of the suction head.

[0049] As an optional implementation, the connection between the second suction part and the first suction part is smoothly transitioned to reduce the stimulation and damage to the surrounding tissues at the connection point.

[0050] As an optional implementation, the inner walls of the first suction hole, the second suction hole, and the third suction hole are all provided with protrusions, and the number of protrusions is multiple, and they are arranged continuously or at intervals along their inner walls.

[0051] When large pieces of tissue or viscous fluid pass through the first, second, and third suction holes, the protrusions can play a certain role in blocking and dispersing them, preventing them from directly clogging the first, second, and third suction holes, and further reducing the risk of blockage.

[0052] The specifications and number of protrusions can be designed according to usage requirements.

[0053] As an alternative implementation, the protrusion includes a hemispherical protrusion or a conical protrusion.

[0054] As an optional implementation, the suction head has a curved end face without sharp edges, reducing damage to tissues.

[0055] Example 1:

[0056] like Figures 1-4 As shown, the utility model provides a suction device for single-port thoracoscopic surgery, including a suction head 1 and a catheter 2. The suction head 1 includes a first suction part 11 and a second suction part 12 connected sequentially along the suction direction. The inner diameter of the first suction part 11 gradually increases along the suction direction. The first suction part 11 is formed by a closed surface 112 and an open surface 113. The open surface 113 is provided with three suction holes, which are arranged at intervals along the circumference of the open surface 113. The inner diameter of the second suction part 12 gradually decreases along the suction direction and is connected to a negative pressure device through the catheter 2.

[0057] By optimizing the layout of the suction head 1, the first suction section 11 is formed by the closed surface 112 and the open surface 113. A simplified number of suction holes are provided on the open surface 113 in a reasonable layout, ensuring sufficient suction area while reducing unnecessary leakage channels and lowering the risk of leakage. Furthermore, the inner diameter of the first suction section 11 gradually increases along the suction direction, creating a large negative pressure area at the suction port end face 111 of the suction head 1, quickly capturing and guiding the accumulated liquid in. The inner diameter of the second suction section 12 gradually decreases to accelerate the liquid before it enters the conduit 2, improving suction efficiency.

[0058] As an optional implementation, the suction hole includes a first suction hole 1131, a second suction hole 1132 and a third suction hole 1133. The first suction hole 1131, the second suction hole 1132 and the third suction hole 1133 are arranged circumferentially at intervals along the opening surface 113, and the width of the second suction hole 1132 is greater than the width of the first suction hole 1131 and the third suction hole 1133.

[0059] With this configuration, the suction coverage of the second suction hole 1132 is greater than that of the first suction hole 1131 and the third suction hole 1133. While ensuring a sufficient suction area, it optimizes the suction distribution and improves the suction efficiency.

[0060] As an optional implementation, the first suction hole 1131, the second suction hole 1132 and the third suction hole 1133 all extend along the suction direction.

[0061] With this configuration, during the suction operation, the accumulated liquid will be smoothly drawn into the suction head 1 along the orifice shape of the first suction hole 1131, the second suction hole 1132, and the third suction hole 1133.

[0062] As an optional implementation, the first suction hole 1131, the second suction hole 1132 and the third suction hole 1133 are all elongated holes, and their ends are rounded edges 1134.

[0063] Furthermore, the first suction hole 1131 and the third suction hole 1133 are located on both sides of the second suction hole 1132, and both have the same specifications, with a length of 3mm, a width of 1mm, and an end edge of 1134 with a radius of 0.5mm.

[0064] The second suction hole 1132 is 3mm long, 1.5mm wide, and has an arc edge 1134 with a radius of 0.75mm at the end to increase the suction coverage area.

[0065] The rounded edges 1134 of the first suction hole 1131, the second suction hole 1132 and the third suction hole 1133 can reduce damage to surrounding tissues and improve the safety of surgical procedures.

[0066] As an optional implementation, the opening surface 113 and the closing surface 112 are symmetrically arranged.

[0067] This design reduces unnecessary air leakage channels and prevents air leakage due to uneven pressure during the suction process. At the same time, three suction holes are opened on the opening surface 113 to ensure sufficient suction area while reducing the risk of air leakage.

[0068] As an optional implementation, the suction head 1 is integrally formed with the conduit 2, and the conduit 2 is provided with an insulating layer 3 on its exterior.

[0069] Furthermore, the insulation layer 3 is a silicone insulation layer 3, which improves the safety and comfort of use.

[0070] The suction head 1 and the catheter 2 are integrally formed, which improves the structural strength of the suction head 1.

[0071] As an optional implementation, the connection between the second suction part 12 and the first suction part 11 is smoothly transitioned to reduce the stimulation and damage to the surrounding tissues at the connection point.

[0072] As an optional implementation, the suction head 1 has a curved end face with no sharp edges or corners, reducing damage to the tissue.

[0073] Example 2:

[0074] The difference between this embodiment and Embodiment 1 is that: Figure 5 As shown, protrusions are provided on the inner wall surfaces of the first suction hole 1131, the second suction hole 1132 and the third suction hole 1133. There are multiple protrusions, which are arranged at intervals along their inner wall surfaces.

[0075] When large pieces of tissue or viscous fluid pass through the first suction hole 1131, the second suction hole 1132, and the third suction hole 1133, the protrusions can play a certain role in blocking and dispersing them, so that they will not directly block the first suction hole 1131, the second suction hole 1132, and the third suction hole 1133, further reducing the risk of blockage.

[0076] The specifications and number of protrusions can be designed according to usage requirements.

[0077] As an alternative implementation, the protrusion is a hemispherical protrusion 4 with a smooth arc surface and a large surface area, which can more effectively disperse and block large pieces of tissue or viscous fluid.

[0078] Example 3:

[0079] The difference between this embodiment and embodiment 2 is that: Figure 6 As shown, the protrusion is a conical protrusion 5 with a pointed tip, which can effectively block the direct passage of large pieces of tissue or viscous fluid, reducing the risk of blockage.

[0080] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0081] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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 do not 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. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0082] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0083] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "a particular example," 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 this application. 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.

[0084] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A suction device for single-port thoracoscopic surgery, characterized in that, The device includes a suction head and a conduit. The suction head includes a first suction section and a second suction section that are sequentially connected along the suction direction. The inner diameter of the first suction section gradually increases along the suction direction. The first suction section is formed by a closed surface and an open surface. The open surface has three suction holes, which are spaced apart circumferentially along the open surface. The inner diameter of the second suction section gradually decreases along the suction direction and is connected to a negative pressure device through the conduit. The suction hole includes a first suction hole, a second suction hole, and a third suction hole. The first suction hole, the second suction hole, and the third suction hole are arranged circumferentially at intervals along the opening surface, and the width of the second suction hole is greater than the width of the first suction hole and the third suction hole. The inner wall surfaces of the first suction hole, the second suction hole, and the third suction hole are all provided with protrusions. There are multiple protrusions, which are arranged continuously or at intervals along their inner wall surfaces. The protrusions include hemispherical protrusions or conical protrusions.

2. The suction device for single-port thoracoscopic surgery according to claim 1, characterized in that, The first suction hole, the second suction hole, and the third suction hole are all elongated holes with rounded edges at their ends, extending along the suction direction.

3. The suction device for single-port thoracoscopic surgery according to claim 2, characterized in that, The opening surface and the closing surface are symmetrically arranged.

4. The suction device for single-port thoracoscopic surgery according to claim 1, characterized in that, The suction head is integrally formed with the catheter, and the outside of the catheter is provided with an insulating layer.

5. The suction device for single-port thoracoscopic surgery according to claim 4, characterized in that, The connection between the second suction part and the first suction part is smoothly transitioned.

6. The suction device for single-port thoracoscopic surgery according to claim 1, characterized in that, The suction head has a curved suction port end face.

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