Surgical aspirator

Abstract

The utility model discloses a surgical aspirator, the surgical aspirator includes: the suction head, connecting rod and liquid collecting component, the suction head includes convex body and hemispheroid, and the convex body and hemispheroid are detachably connected to constitute the suction head that is generally spherical, a plurality of drainage holes are equipped on the convex surface of convex body, and the hemispheroid has drainage cavity that communicates with the drainage hole, and the drainage cavity has drainage hole, and the connecting rod is connected with the hemispheroid, and the connecting rod has drainage channel that communicates with the drainage hole in, and the connecting rod can be bent, and the liquid collecting component includes the suction pipe, vacuum pump and collection bottle, and the connecting rod is connected with the collection bottle through the suction pipe, and the vacuum pump is established on the suction pipe. The utility model discloses a surgical aspirator, and the convex surface of convex body can better adhere to the tumor recessed section, thereby more accurately sucking the liquid and the fragment in the recess, and keeping the clear surgical field. Moreover, the convex surface and the recess adhesion can also reduce the contact and the damage to the normal tissue around the tumor.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a surgical suction device. Background Technology

[0002] Currently, some tumors (such as mediastinal tumors) leave relatively depressed wounds after surgical resection, making suction ineffective with conventional suction devices. Furthermore, the suction devices used in robotic surgery are often too sharp, failing to effectively remove blood and easily puncturing blood vessels. Clinically, most common suction devices have straight or slightly curved tubular heads, primarily designed for easy removal of fluids, blood, and tissue debris from the surgical field. These traditional suction devices are effective for cleaning planar or conventionally curved surgical areas. However, commonly used tubular suction devices struggle with depressed wounds. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of this utility model propose a surgical suction device that offers precise suction and high safety.

[0005] The surgical suction device according to this utility model embodiment includes:

[0006] The suction head includes a convex body and a hemisphere, which are detachably connected to form a generally spherical suction head. The convex body has a plurality of drainage holes on its convex surface, and the hemisphere has a drainage cavity communicating with the drainage holes. The drainage cavity has a drain hole.

[0007] A connecting rod is connected to the hemisphere, and the connecting rod has a drainage channel communicating with the drain hole. The connecting rod is bendable.

[0008] A liquid collection assembly includes a pipette, a vacuum pump, and a collection bottle. The connecting rod is connected to the collection bottle via the pipette, and the vacuum pump is mounted on the pipette.

[0009] The surgical suction device of this invention features a convex surface that better conforms to the indented cut surface of the tumor, thereby more accurately removing fluid and debris from the indentation and maintaining a clear surgical field. Furthermore, the conformity between the convex surface and the indentation reduces contact and damage to surrounding normal tissues.

[0010] In some embodiments, the end face of the convex body is provided with a plurality of liquid inlet holes, the diameter of the liquid inlet holes is larger than the diameter of the drainage holes, and at least two of the drainage holes are connected to the drainage cavity through one of the liquid inlet holes.

[0011] In some embodiments, the wall of the drainage cavity is arc-shaped, and the center of the hemisphere is located on the central axis of the drainage hole.

[0012] In some embodiments, the hemisphere has a mounting groove, and the convex body has a mounting portion mounted within the mounting groove.

[0013] In some embodiments, the suction tip is made of medical-grade stainless steel or medical-grade plastic.

[0014] In some embodiments, a hydrophilic coating is provided on the convex surface of the convex body.

[0015] In some embodiments, the connecting rod is tubular, and the cavity of the connecting rod serves as the drainage channel.

[0016] In some embodiments, the size of the port of the drainage channel that communicates with the drain hole is larger than the size of the drain hole.

[0017] In some embodiments, the connecting rod has a connecting portion connected to the hemisphere, and the cross-sectional area of ​​the portion of the drainage channel located within the connecting portion gradually decreases in a direction from near the hemisphere toward away from the hemisphere.

[0018] In some embodiments, the connecting rod has a bent portion, which is a corrugated tube, and an elastic element is provided inside the bent portion. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the surgical suction device according to an embodiment of the present invention.

[0020] Figure 2 This is a partial schematic diagram of the surgical suction device according to an embodiment of the present invention.

[0021] Figure label:

[0022] 1-Suction tip, 11-Convex body, 111-Drainage hole, 112-Liquid inlet hole, 113-Assembly part, 12-Hemisphere, 121-Drainage cavity, 122-Drainage hole, 123-Assembly groove,

[0023] 2-Connecting rod, 201-Drainage channel, 21-Connecting part, 22-Bending part, 221-Elastic element,

[0024] 3-Liquid collection assembly, 31-Pipette, 32-Vacuum pump, 33-Collection bottle. Detailed Implementation

[0025] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] The surgical suction device of this utility model is described below with reference to the accompanying drawings.

[0027] like Figure 1 and Figure 2 As shown, the surgical aspirator of this utility model embodiment includes a suction head 1, a connecting rod 2, and a liquid collection assembly 3.

[0028] The suction head 1 includes a convex body 11 and a hemisphere 12, which are detachably connected to form a generally spherical suction head 1. The convex body 11 has multiple drainage holes 111 on its convex surface. The hemisphere 12 has a drainage cavity 121 communicating with the drainage holes 111, and the drainage cavity 121 has a drain hole 122. A connecting rod 2 is connected to the hemisphere 12, and the connecting rod 2 has a drainage channel 201 communicating with the drain hole 122. The connecting rod 2 is bendable. The liquid collection assembly 3 includes a pipette 31, a vacuum pump 32, and a collection bottle 33. The connecting rod 2 is connected to the collection bottle 33 via the pipette 31, and the vacuum pump 32 is mounted on the pipette 31.

[0029] During the surgery, the convex body 11 of the suction head 1 is fitted to the concave cut surface of the tumor. Through the suction action of the vacuum pump 32, the multiple drainage holes 111 on the convex body 11 draw in the blood, exudate and tissue fragments accumulated in the concave tumor. The fluid flows into the drainage cavity 121 through the drainage holes 111, and then into the suction tube 31 through the drainage hole 122 and the drainage channel 201. Finally, the drained fluid is collected into the collection bottle 33, thereby maintaining a clear surgical field.

[0030] The suction head (convex body 11) is designed with a convex shape to match the shape of the tumor depression. Several convex surfaces with different curvatures and sizes, such as hemispherical or parabolic convex surfaces, can be designed based on research into common tumor depression shapes to meet the needs of different degrees of tumor depression. Furthermore, the edge connecting the convex body 11 and the hemisphere 12 is smoothly transitioned to avoid damage to surrounding tissues during operation.

[0031] Connecting rod 2 needs to have a suitable length and angle to facilitate the doctor's operation and allow the convex head to accurately fit the tumor depression. Therefore, connecting rod 2 can be bent, making its angle adjustable to adapt to different surgical positions and tumor locations.

[0032] The suction tip 1 is made of a material with good biocompatibility, avoiding allergic reactions or other adverse reactions in patients. For example, the suction tip 1 can be made of medical-grade stainless steel or high-polymer medical plastic, which are not only biocompatible but also easy to clean and sterilize.

[0033] Furthermore, the part of the convex body 11 that comes into contact with human tissue is treated with a special coating, such as a hydrophilic coating, so that the suction device can function better when in contact with tissue and liquid, while reducing tissue adhesion.

[0034] The vacuum pump 32 is equipped with adjustable suction strength devices, allowing doctors to adjust it according to actual conditions (such as fluid viscosity, flow rate, etc.). Optionally, suction adjustment can be achieved through electronic control or a mechanical knob, and the suction level is clearly marked on the suction device.

[0035] Additionally, consider installing a small lighting device on the suction device or using it in conjunction with visualization equipment such as an external surgical microscope to ensure a clear view of the tumor's interior during surgery, facilitating precise manipulation. Tiny markers or sensors can also be placed on the edge of the convex tip to help doctors better determine the degree and position of the suction device against the tumor's interior.

[0036] In summary, the surgical suction device of this embodiment features a convex body 11 that better conforms to the tumor depression cut surface. During surgery, blood, exudate, and tissue debris often accumulate in the tumor depression. Traditional cylindrical suction devices struggle to fully reach the bottom and edges of the depression, while the convex suction device of this embodiment can penetrate deep into the depression, closely conforming to its shape, much like a custom-made tool. This allows for more precise removal of these fluids and debris, maintaining a clear surgical field.

[0037] By effectively removing fluid from the depression, the surgical field of view is reduced due to fluid residue. For example, in brain tumor surgery, a clear field of view is crucial for protecting surrounding nerve tissue. The suction device of this invention can help doctors more accurately distinguish tumor tissue from normal tissue, reducing surgical risks.

[0038] The convex shape of the convex body 11 conforms to the concave area, allowing the suction process to be primarily concentrated within the tumor concave region. Compared to traditional suction devices that may accidentally aspirate surrounding normal tissue, the convex shape reduces contact and damage to surrounding normal tissue. For example, in breast tumor surgery, it can avoid damaging surrounding mammary ducts and normal glandular tissue.

[0039] The convex design can disperse the force generated during suction to a certain extent. When the suction function is turned on, the suction force of the surgical suction device of this utility model embodiment will not be concentrated on a point or a small area like the traditional suction device. Instead, it will play a drainage role by using multiple evenly distributed drainage holes 111 through the convex head design, thereby reducing the pressure damage to the surrounding tissue caused by excessive local pressure.

[0040] In some embodiments, such as Figure 2 As shown, a plurality of liquid inlet holes 112 are provided on the end face of the convex body 11. The diameter of the liquid inlet hole 112 is larger than the diameter of the drainage hole 111. At least two drainage holes 111 are connected to the drainage cavity 121 through one liquid inlet hole 112.

[0041] It is understandable that the convex body 11 is a solid structure, with the liquid inlet hole 112 as the main hole and the drainage hole 111 as the branch hole. Each liquid inlet hole 112 is connected to multiple drainage holes 111. The flow channel inside the convex body 11 is similar to a tree structure, which can effectively concentrate the fluid drawn from multiple directions into the drainage cavity 121, thereby improving the absorption efficiency.

[0042] The design of the inlet hole 112 and the outlet hole 111 allows the fluid to be dispersed and reconcentrated when it enters the interior of the convex body 11. This helps to reduce turbulence and eddies in the fluid during the flow process, thereby reducing fluid resistance and improving the smoothness of the flow.

[0043] In some embodiments, such as Figure 2 As shown, the wall of the drainage cavity 121 is arc-shaped, and the center of the hemisphere 12 is located on the central axis of the drain hole 122.

[0044] Understandably, the arc-shaped design of the drainage cavity 121 can reduce the rebound of liquid when entering the drainage cavity 121. The liquid tends to transition more smoothly on the arc-shaped surface, which helps the fluid flow more smoothly in the drainage cavity 121 and reduces flow resistance.

[0045] Furthermore, the center of the hemisphere 12 is located on the central axis of the drain hole 122, which helps to ensure that the fluid flows quickly and directly to the drain hole 122 along the central axis, reducing the residence time of the fluid in the drainage cavity 121 and improving the drainage efficiency.

[0046] In some embodiments, such as Figure 2 As shown, the hemisphere 12 has an assembly groove 123, and the convex body 11 has an assembly part 113 installed in the assembly groove 123.

[0047] Optionally, the assembly slot 123 is a snap-fit ​​slot, and there are multiple assembly slots 123. The multiple assembly slots 123 are evenly arranged at intervals along the axial direction of the hemisphere 12, and the assembly part 113 is a snap-fit, so that the convex body 11 and the hemisphere 12 are connected by a snap-fit.

[0048] Optionally, the mounting groove 123 is an annular threaded groove, and the mounting part 113 is an annular protrusion with threads that match the threaded groove, so that the convex body 11 and the hemisphere 12 are detachably connected by a threaded connection.

[0049] Therefore, by detachably connecting the hemisphere 12 and the convex body 11, it is not only convenient to replace the convex body 11 with different convex shapes to meet the needs of different tumor depressions and improve the adaptability of the surgical suction device of this utility model embodiment, but also convenient for cleaning and maintenance.

[0050] In some embodiments, such as Figure 2 As shown, the connecting rod 2 is tubular, and the lumen of the connecting rod 2 serves as a drainage channel 201. That is, the entire inner lumen of the connecting rod 2 serves as a drainage channel 201, improving the reliability of fluid drainage and enabling rapid and effective drainage of blood, exudate, and tissue debris from the tumor depression.

[0051] Optionally, such as Figure 2 As shown, the size of the port of the drainage channel 201 that communicates with the drain hole 122 is larger than the size of the drain hole 122, which reduces the resistance of liquid flowing from the drainage cavity 121 to the drainage channel 201, thereby reducing the risk of blockage at the connection 21.

[0052] In some embodiments, such as Figure 2 As shown, the connecting rod 2 has a connecting part 21, which is connected to the hemisphere 12. The cross-sectional area of ​​the portion of the drainage channel 201 located inside the connecting part 21 gradually decreases in the direction from near the hemisphere 12 to away from the hemisphere 12.

[0053] Understandably, the connecting rod 2, being the part held by the doctor, needs to be sized for ease of use. Therefore, while ensuring convenience, the part of the connecting rod 2 that connects to the hemisphere 12 is flared to ensure the reliability of drainage.

[0054] In some embodiments, such as Figure 2 As shown, the connecting rod 2 has a bent portion 22, which is a corrugated pipe.

[0055] The connecting rod 2 is divided into two sections by the bending portion 22. To adapt to different surgical positions and tumor locations, one section of the connecting rod 2 connected to the suction head 1 can be bent, thus facilitating the doctor's operation. In other words, the corrugated tube design allows the connecting rod 2 to bend flexibly within a certain range, adapting to the needs of different surgical sites and angles, improving the convenience and flexibility of operation. Furthermore, the elastic properties of the corrugated tube help prevent blockage of the drainage channel 201 due to bending, ensuring the unobstructed flow of the drainage channel 201.

[0056] Furthermore, such as Figure 2 As shown, the bending part 22 is provided with an elastic element 221. The setting of the elastic element 221 enables the connecting rod 2 to maintain a certain elasticity and recovery force when bending, so as to adapt to various complex movements during the operation.

[0057] Optionally, the elastic element 221 is a spring, which is pressed into the circumferential wall of the bellows to increase the elasticity of the bent part 22 and give the bent part 22 a reset function.

[0058] 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.

[0059] 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.

[0060] 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, an electrical connection, or a connection that allows communication between them; 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.

[0061] 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.

[0062] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. 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.

[0063] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A surgical suction device, characterized in that, include: The suction head includes a convex body and a hemisphere, which are detachably connected to form a generally spherical suction head. The convex body has a plurality of drainage holes on its convex surface, and the hemisphere has a drainage cavity communicating with the drainage holes. The drainage cavity has a drain hole. A connecting rod is connected to the hemisphere, and the connecting rod has a drainage channel communicating with the drain hole. The connecting rod is bendable. A liquid collection assembly includes a pipette, a vacuum pump, and a collection bottle. The connecting rod is connected to the collection bottle via the pipette, and the vacuum pump is mounted on the pipette.

2. The surgical suction device according to claim 1, characterized in that, The end face of the convex body is provided with a plurality of liquid inlet holes, the diameter of the liquid inlet holes being larger than the diameter of the drainage holes, and at least two of the drainage holes communicating with the drainage cavity through one of the liquid inlet holes.

3. The surgical suction device according to claim 2, characterized in that, The wall of the drainage cavity is arc-shaped, and the center of the hemisphere is located on the central axis of the drainage hole.

4. The surgical suction device according to claim 1, characterized in that, The hemisphere has an assembly groove, and the convex body has an assembly part installed in the assembly groove.

5. The surgical suction device according to claim 1, characterized in that, The suction tip is made of medical-grade stainless steel or medical-grade plastic.

6. The surgical suction device according to claim 5, characterized in that, The convex surface of the convex body is provided with a hydrophilic coating.

7. The surgical suction device according to any one of claims 1-6, characterized in that, The connecting rod is tubular, and the cavity of the connecting rod serves as the drainage channel.

8. The surgical suction device according to claim 7, characterized in that, The size of the port of the drainage channel that communicates with the drain hole is larger than the size of the drain hole.

9. The surgical suction device according to claim 8, characterized in that, The connecting rod has a connecting portion that is connected to the hemisphere, and the cross-sectional area of ​​the portion of the drainage channel located within the connecting portion gradually decreases in the direction from the hemisphere toward the direction away from the hemisphere.

10. The surgical suction device according to claim 7, characterized in that, The connecting rod has a bent portion, which is a corrugated tube, and an elastic element is provided inside the bent portion.

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