Anti-clogging tissue collection suction device and usage method

Abstract

Disclosed are an anti-clogging tissue collection suction device and a usage method. The present disclosure relates to the technical field of medical devices. The anti-clogging tissue collection suction device comprises a suction main tube. The suction main tube comprises a suction inlet end and is provided with a spiral sleeve. By means of applying external force to rotate the spiral sleeve or the suction main tube, relative movement occurs between the spiral sleeve and the suction main tube. During this relative movement, the suction inlet end is positioned outside the spiral sleeve, or the suction inlet end is positioned inside the spiral sleeve and a storage space is formed by utilizing the spiral sleeve. The suction device can form different suction structures by means of rotating the spiral sleeve. This facilitates targeted suction of tissue debris and fluid, enables one-time removal of adsorbed large-particle debris, effectively prevents clogging, and also allows for the collection and retention of the suctioned large-particle tissue debris. The suction device solves the technical problems of existing suction devices affecting surgical progress, such as the inability to remove large-particle debris, susceptibility to clogging by large-particle debris, the need for manual disassembly and cleaning of the suction tube during clogging, and the inconvenience of finger pressure adjustment for negative pressure suction.

Description

Anti-clogging tissue collection aspirator and use method Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an anti-clogging tissue collection aspirator and a use method thereof. Background Art

[0002] Aspirators are essential medical devices used in surgical procedures. Connected to a negative pressure device, they use negative pressure to remove debris, such as tissue debris, fat, and bone fragments, as well as tissue fluid, blood, and flushing fluids from the surgical wound. This cleans the wound, provides a clear surgical field of view, reduces infection, and promotes healing. Aspirators are typically circular tubes of a certain length, but these devices are prone to internal blockages when attracting debris, which can affect the surgical process. Furthermore, the attracted debris is completely sucked into the negative pressure bottle and cannot be effectively and promptly utilized.

[0003] To prevent internal clogging in suction devices, existing technologies have designed anti-clogging structures for suction devices. For example, patent document CN219558229U proposes an anti-clogging detachable suction tube. This technology has a first suction hole and a second suction hole on the suction tube head. The first suction hole and the second suction hole are both configured as through holes with an outer contour smaller than the inner contour to prevent clogging. The original suction tube is also divided into several sections to facilitate cleaning of internal debris. Although this technology can effectively prevent internal clogging in the suction tube, a careful analysis revealed that it still has the following technical problems:

[0004] 1. When the outer diameter of the debris is larger than the inner diameter of the outer contour of the suction hole, these large particles of debris will be blocked outside the suction hole under the action of negative pressure, causing external blockage of the suction hole and preventing effective suction of large particles of debris. At the same time, these large particles of debris need to be manually removed by the doctor, which not only affects the surgical process but also increases the difficulty of the operation. Conversely, to effectively suction large particles of debris, the outer diameter of the tube head needs to be increased. However, the increased outer diameter of the tube head makes it unsuitable for suctioning debris tissue and accumulated fluid in narrow wound spaces.

[0005] 2. When large particles of debris are sucked into the suction tube and cause blockage, the negative pressure needs to be stopped and the suction tube needs to be manually disassembled and cleaned to remove the blockage. This process is complicated and also affects the smooth progress of the operation.

[0006] 3. This technology uses a method of pressing the second suction hole on the side wall with fingers to adjust the negative pressure suction force, which is inconvenient to operate and has poor practicality.

[0007] 4. This technology requires the removal of the suction tube after the operation is completed or when the suction tube is blocked in order to obtain part of the sucked tissue.

[0008] Therefore, it is necessary to provide a new technology to solve the above technical problems. Summary of the Invention

[0009] The purpose of the present invention is to overcome the above-mentioned technical problems existing in the prior art, and to provide an anti-clogging tissue collection aspirator and a method of use. The aspirator is provided with a spiral sleeve on the suction main pipe that is controlled to rotate relative to the suction main pipe. By controlling the relative rotation of the spiral sleeve and the suction main pipe, on the one hand, the negative pressure suction force can be conveniently and steplessly adjusted to ensure a faster and more effective suction effect; on the other hand, the suction end of the suction main pipe can be extended out of the spiral sleeve or retracted into the spiral sleeve to form different suction structures, which is convenient for targeted suction of debris tissue and accumulated fluid, and can remove adsorbed large particles of debris at one time and effectively prevent blockage, and is also convenient for collecting and retaining the absorbed large particles of debris tissue; thereby solving the technical problems that affect the surgical process, such as the inability of existing aspirators to effectively absorb large particles of debris, the easy clogging of the suction holes and the inside of the suction tube by large particles of debris, the need to manually disassemble and clean the suction tube when blocked, and the inconvenience of adjusting the negative pressure suction force by finger pressing.

[0010] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0011] In the first aspect, the present invention provides an anti-clogging tissue collection aspirator, including a suction main pipe, the suction main pipe including a negative pressure connection end and a suction end, the end face of the suction end is provided with a main suction hole, and the side wall of the suction end is provided with a side suction hole; a spiral sleeve is provided on the suction main pipe, and an external force rotates the spiral sleeve or the suction main pipe, and relative movement occurs between the spiral sleeve and the suction main pipe, and during the relative movement, the suction end is located outside the spiral sleeve, or the suction end is located inside the spiral sleeve and a storage space is formed using the spiral sleeve.

[0012] The outer surface of the suction main pipe is provided with a spiral slide rail, and the inner surface of the spiral sleeve is provided with a corresponding spiral slide groove, or the outer surface of the suction main pipe is provided with a spiral slide groove, and the inner surface of the spiral sleeve is provided with a corresponding spiral slide rail.

[0013] The spiral slide rail or spiral slide groove on the suction main pipe is located between the middle part of the suction main pipe and the suction end, and the spiral sleeve is inserted into the suction main pipe from the suction end, or separated from the suction main pipe from the suction end.

[0014] A partition is provided in the middle of the main suction hole to separate the main suction hole. There are multiple side suction holes, and the multiple side suction holes are distributed along the axial direction of the suction main pipe.

[0015] The spiral sleeve is provided with anti-slip grooves.

[0016] In a second aspect, the present invention also provides another anti-clogging tissue collection aspirator, comprising a suction main tube, wherein:

[0017] The suction main pipe includes a negative pressure connection end and a suction end, the end surface of the suction end is provided with a main suction hole, and the side wall of the suction end is provided with a side suction hole; it also includes a handheld section, an external thread section and a polished rod section arranged in sequence, the negative pressure connection end is located at the left end of the handheld section, and the suction end is located at the right end of the polished rod section;

[0018] The suction main pipe is provided with a spiral sleeve, which includes a spiral section and a storage section. The spiral section is threadedly connected to the external thread section, and the storage section is sleeved on the polished rod section, and the outer diameter of the storage section is smaller than the outer diameter of the spiral section. When the spiral sleeve is rotated by external force, the spiral sleeve and the suction main pipe move relative to each other, and during the relative movement, the suction end is located outside the storage section, or the suction end is located inside the storage section and a storage space is formed by using the storage section.

[0019] The gap between the storage section and the polished rod section is 0-1 mm.

[0020] The outer surface of the spiral section and the outer surface of the storage section are transitioned through a frustum or an inclined surface.

[0021] A limiting step for limiting the position of the spiral sleeve is provided between the handheld section and the external thread section.

[0022] The suction main pipe is provided with a vent hole and a matching plug for sealing the vent hole.

[0023] An annular groove is provided on the hand-held section near the limiting step, a sealing clamp curled into a ring is clamped in the annular groove, the vent hole is located at the bottom of the annular groove, and the plug is integrally formed on the sealing clamp.

[0024] The negative pressure connection end is provided with a fastening ring protruding from the outer surface.

[0025] The spiral sleeve is inserted into the suction main pipe from the suction end, or is separated from the suction main pipe from the suction end.

[0026] A partition is provided in the middle of the main suction hole to separate the main suction hole. There are multiple side suction holes, and the multiple side suction holes are distributed along the axial direction of the suction main pipe.

[0027] The hand-held section and the spiral section are both provided with anti-slip grooves.

[0028] In a third aspect, the present invention further provides a method for using the aforementioned anti-clogging tissue collection aspirator, comprising the following steps:

[0029] S1: The spiral sleeve is rotated by an external force, causing the spiral sleeve and the suction main pipe to rotate relative to each other, and the suction end of the suction main pipe is controlled to extend outside the spiral sleeve, forming a suction structure in which the main suction hole and the side suction hole are both located outside the spiral sleeve; or the suction end of the suction main pipe is controlled to be flush with the right end of the spiral sleeve, forming a suction structure with only the main suction hole; or the suction end of the suction main pipe is controlled to be located inside the spiral sleeve, and the spiral sleeve is used to form a suction structure with a storage space outside the suction end;

[0030] S2: When the tissue to be aspirated in the body cavity is small particles of debris and effusion, use a suction structure with both the main suction hole and the side suction hole located outside the spiral cannula for aspiration, or use a suction structure with only the main suction hole for aspiration; when the tissue to be aspirated in the body cavity is large particles of debris, use a suction structure with a storage space for aspiration;

[0031] S3: When there are many large particles of debris sucked into the storage space and the main suction hole is blocked, first move the entire suction device aside, then control the relative movement between the spiral sleeve and the suction main pipe, so that the side suction hole on the side wall of the suction end extends out of the spiral sleeve, so that the storage space formed between the spiral sleeve and the suction main pipe disappears, and the stacked large particles of debris are pushed out of the storage space. Then, the negative pressure is turned off and the negative pressure state is released by using the side suction hole, so that the large particles of debris at the main suction hole automatically fall and are collected.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. The key innovation of the anti-clogging tissue collection aspirator provided in the first aspect of the present invention is that a spirally movable spiral sleeve is provided on the suction main pipe. When the spiral sleeve or the suction main pipe is rotated by an external force, the spiral sleeve and the suction main pipe can undergo relative rotational movement. During the relative rotational movement, the suction end can be located outside the spiral sleeve, or the suction end can be located inside the spiral sleeve and a storage space can be formed outside the suction end by using the spiral sleeve. In this way, the aspirator can be adjusted to different suction structures. At the same time, the friction between the spiral sleeve and the suction main pipe prevents the spiral sleeve from sliding when subjected to axial pressure, thereby maintaining stability in different suctions. Based on this key innovation, its advantages are as follows:

[0034] First, the structure in which the spiral sleeve is spirally connected to the suction main pipe ensures that the spiral sleeve and the suction main pipe will not move relative to each other when not rotated by external force, and will only move relative to each other steplessly when rotated by external force. This allows the spiral sleeve and the suction main pipe to be well fixed and stopped at any required relative position, and there is no axial movement between the two during movement, thereby making the attractor more stable and reliable when performing suction work.

[0035] Secondly, when small particles of debris and fluid need to be aspirated without causing blockage, the spiral cannula can be rotated so that the main suction hole is flush with the right end of the spiral cannula, or the main suction hole is extended outside the spiral cannula, or the main suction hole and the side suction hole are extended outside the spiral cannula at the same time. By rotating the spiral cannula, the negative pressure suction force can be adjusted steplessly, so that small particles of debris and fluid can be aspirated through the main suction hole or through the main suction hole and the side suction hole, which is conducive to improving the aspiration speed.

[0036] When it is necessary to absorb tissue containing large particles of debris, the spiral sleeve can be rotated so that the suction end (main suction hole and side suction hole) is located inside the spiral sleeve. At this time, the suction main pipe can use the spiral sleeve to form a storage space for large particles of debris outside the suction end. In this state, large particles of debris will be adsorbed in the storage space, which realizes the effective absorption of large particles of debris in the body cavity and can effectively prevent large particles of debris from clogging the main suction hole and the inside of the suction main pipe.

[0037] Furthermore, when there are a lot of large particles of debris absorbed into the storage space and they clog the main suction hole, the entire aspirator can be moved aside first, and then by controlling the relative movement between the spiral sleeve and the suction main pipe, the side suction hole on the side wall of the suction end is extended out of the spiral sleeve, so that the storage space formed between the spiral sleeve and the suction main pipe disappears. In this way, on the one hand, the stacked large particles of debris can be pushed out of the storage space, and on the other hand, by closing the negative pressure and using the side suction hole to release the negative pressure state, the large particles of debris at the main suction hole can be automatically dropped and collected. In actual application, through the aforementioned repeated operations, the effective absorption and collection of large particles of debris can be achieved more quickly, and the external blockage of the main suction hole can be better released, thereby ensuring the smooth progress of the operation.

[0038] In summary, the present invention controls the relative movement of the spiral sleeve and the suction main pipe so that the suction end is located inside the spiral sleeve or extends outside the spiral sleeve. It can be used for the effective absorption of different tissues (including small-particle debris tissue, large-particle debris tissue and effusion), which is convenient for the targeted absorption of debris tissue and effusion, and can remove the adsorbed large-particle debris at one time and effectively prevent blockage. It is also convenient for collecting and retaining the absorbed large-particle debris. It has the technical effect of being able to adjust the negative pressure suction force as needed, effectively absorb large-particle debris, prevent the suction main pipe from being blocked, quickly unblock when the storage space is blocked, facilitate timely acquisition of the absorbed tissue, and effectively ensure the progress of the operation.

[0039] 2. On the basis of the aspirator provided in the first aspect, the key innovation of the anti-clogging tissue collection aspirator provided in the second aspect of the present invention is that a light rod section is provided on the spiral sleeve, and the outer diameter of the storage section on the spiral sleeve is correspondingly reduced. When the aspirator is actually used, the right end and the suction end of the spiral sleeve are mainly extended into the body cavity for tissue suction. Based on this, by reducing the outer diameter of the storage section, the aspirator can not only use the spiral section to ensure that the spiral sleeve has a stable and reliable structural strength, but also help to reduce the outer diameter of the suction end on the suction main pipe as a whole while ensuring that the above-mentioned suction function remains unchanged and without reducing the inner diameter of the suction main pipe, so that the aspirator can be used in a smaller space for effective tissue suction and is easy to operate.

[0040] In addition, the method for using the suction device provided in the third aspect of the present invention has the same technical effects as described above and will not be described in detail.

[0041] 3. The present invention sets the gap between the storage section and the polished rod section to 0-1mm, so that the gap between the storage section and the polished rod section is very small. Under the limitation of the small spacing, when the side suction hole is located in the storage section, the side suction hole can be basically blocked without affecting the negative pressure of the main suction hole, which is conducive to improving the suction effect when only the main suction hole is used to suck materials.

[0042] 4. The present invention uses a truncated cone or inclined surface as a transition between the outer surface of the spiral section and the outer surface of the storage section, which can avoid the formation of sharp corners or edges between the spiral section and the storage section, thereby preventing scratches on patients or users during use.

[0043] 5. The present invention can limit the spiral sleeve when it moves toward the negative pressure connection end through the limiting step, so that the spiral sleeve cannot move further when it moves to the limiting step, preventing the spiral sleeve from affecting the use effect due to excessive movement.

[0044] 6. The present invention provides a vent hole and a matching plug for blocking the vent hole on the suction main pipe. In extreme cases, when the suction device is completely blocked, a negative pressure state is formed in the suction main pipe, and there is no channel connecting to the outside world, the suction device cannot be opened. At this time, turn off the negative pressure device and remove the plug to allow the inner cavity of the suction main pipe to connect with the outside world, thereby releasing the negative pressure state.

[0045] 7. The present invention facilitates the sealed connection between the suction main pipe and the negative pressure equipment through the fastening ring.

[0046] 8. The spiral sleeve of the present invention is connected to the suction main pipe by a spiral slide rail and a spiral slide groove, which has the advantages of no sliding between the spiral sleeve and the suction main pipe after connection, simple connection structure, and easy operation and control.

[0047] 9. The spiral sleeve of the present invention can be inserted into the suction main pipe from the suction end, or detached from the suction main pipe from the suction end, which has the advantage of simple and convenient assembly or disassembly.

[0048] 10. The present invention can separate the main suction holes into different shapes and sizes by means of partitions, thereby preventing large particles of debris from entering the suction main pipe, and effectively preventing blockage inside the suction main pipe.

[0049] 11. The present invention can increase the friction between the finger and the suction device through the anti-slip pattern, which is anti-slip and convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] FIG1 is a schematic cross-sectional view of the first type of absorber of the present invention in its initial state;

[0051] FIG2 is a schematic diagram of the three-dimensional structure of FIG1 ;

[0052] FIG3 is a schematic diagram of the three-dimensional structure of the suction main pipe in the first type of suction device;

[0053] FIG4 is a schematic diagram of the three-dimensional structure of the spiral sleeve in the first aspirator;

[0054] FIG5 is a schematic cross-sectional view of the first aspirator when the suction end is located within the spiral sleeve;

[0055] FIG6 is a schematic diagram of the three-dimensional structure of FIG5;

[0056] FIG7 is a schematic cross-sectional view of the first aspirator when in use, with the suction end located outside the spiral sleeve;

[0057] FIG8 is a schematic diagram of the three-dimensional structure of FIG7;

[0058] FIG9 is a schematic diagram of the planar structure of the second attractor of the present invention in the initial state;

[0059] FIG10 is a schematic cross-sectional view of the structure of FIG1 ;

[0060] FIG11 is a schematic diagram of the three-dimensional structure of FIG1 ;

[0061] FIG12 is a schematic diagram of the planar structure of the suction main tube in the second type of suction device;

[0062] FIG13 is a schematic cross-sectional view of the suction main pipe in the second type of suction device;

[0063] FIG14 is a schematic diagram of the three-dimensional structure of the suction main tube in the second type of suction device;

[0064] FIG15 is a schematic cross-sectional view of the spiral sleeve in the second aspirator;

[0065] FIG16 is a schematic diagram of the three-dimensional structure of the spiral sleeve in the second aspirator;

[0066] FIG17 is a schematic diagram of the planar structure of the second aspirator when the suction end is located within the storage section when in use;

[0067] FIG18 is a cross-sectional view of the second aspirator when the suction end is located within the storage section;

[0068] FIG19 is a schematic diagram of the three-dimensional structure of FIG17;

[0069] FIG20 is a schematic diagram of the planar structure of the second aspirator when the suction end is located outside the storage section;

[0070] FIG21 is a cross-sectional view of the second aspirator when in use, with the suction end located outside the storage section;

[0071] FIG22 is a schematic diagram of the three-dimensional structure of FIG20;

[0072] FIG23 is a schematic diagram of the three-dimensional structure of the sealing clamp.

[0073] The markings in the figure are: 1. Suction main pipe, 2. Negative pressure connection end, 3. Hand-held section, 4. External thread section, 5. Polished rod section, 6. Suction end, 7. Main suction hole, 8. Side suction hole, 9. Spiral sleeve, 10. Spiral section, 11. Storage section, 12. Storage space, 13. Limiting step, 14. Vent, 15. Sealing clamp, 16. Plug, 17. Fastening ring, 18. Anti-slip groove. DETAILED DESCRIPTION

[0074] Example 1

[0075] As shown in Figures 1-4, this embodiment provides a first anti-clogging tissue collection aspirator, which includes a suction main pipe 1 that can be integrally formed by injection molding or 3D printing. The suction main pipe 1 includes a negative pressure connection end 2 located at the left end and a suction end 6 located at the right end. The negative pressure connection end 2 is used to connect to a negative pressure device. The suction end 6 includes an end face and an end portion close to the end face. The end face of the suction end 6 is provided with a main suction hole 7, and the side wall of the suction end 6 is provided with a side suction hole 8. In actual use, the suction main pipe 1 extends into the body cavity through the suction end 6, and uses the main suction hole 7 or simultaneously uses the main suction hole 7 and the side suction hole 8 to absorb debris tissue and effusion tissue.

[0076] The above-mentioned suction device also includes a spiral sleeve 9, which can also be made by injection molding or 3D printing. The spiral sleeve 9 is a cylindrical structure with a uniform outer diameter, so that the spiral sleeve 9 has a stable and reliable structural strength. The spiral sleeve 9 is sheathed on the suction main pipe 1 with a spiral structure.

[0077] When the spiral sleeve 9 or the suction main pipe 1 is not subjected to external rotational control, the spiral sleeve 9 is positioned on the suction main pipe 1, and no relative movement occurs between the spiral sleeve 9 and the suction main pipe 1. When the spiral sleeve 9 or the suction main pipe 1 is subjected to external rotational control, relative movement occurs between the spiral sleeve 9 and the suction main pipe 1. This relative movement can position the suction end 6 outside the spiral sleeve 9, or position the suction end 6 inside the spiral sleeve 9 and utilize the spiral sleeve 9 to form a storage space 12 outside the suction end 6. By controlling the spiral sleeve 9 to rotate to different positions, the aspirator can form different suction structures, thereby facilitating the targeted suction of different tissues and achieving better suction results.

[0078] It should be noted that the aforementioned external force rotation control enabling relative movement between the suction main pipe 1 and the spiral sleeve 9 means: the suction main pipe 1 is controlled to be stationary, and the spiral sleeve 9 is rotated by an external force, so that the spiral sleeve 9 can rotate and move relative to the suction main pipe 1, thereby achieving position adjustment between the spiral sleeve 9 and the suction main pipe 1. Alternatively, the spiral sleeve 9 can be controlled to be stationary, and the external force is used to rotate the suction main pipe 1, so that the suction main pipe 1 can rotate and move relative to the spiral sleeve 9, thereby achieving position adjustment between the suction main pipe 1 and the spiral sleeve 9.

[0079] The spiral sleeve 9 is helically mounted on the suction main pipe 1. This means that: the outer surface of the suction main pipe 1 is provided with a spiral guide rail, and the inner surface of the spiral sleeve 9 is provided with a corresponding spiral groove; or alternatively, the outer surface of the suction main pipe 1 is provided with a spiral groove, and the inner surface of the spiral sleeve 9 is provided with a corresponding spiral guide rail. The spiral guide rail and the spiral groove form a spiral connection structure between the spiral sleeve 9 and the suction main pipe 1. In actual application, by controlling the rotation of the spiral sleeve 9 or the suction main pipe 1, the spiral sleeve 9 and the suction main pipe 1 can achieve stepless relative movement, effectively preventing movement during adjustment.

[0080] Furthermore, the spiral slide rail or spiral groove on the suction main pipe 1 is located between the middle part of the suction main pipe 1 and the suction end, and the spiral sleeve 9 can be inserted into the suction main pipe 1 from the suction end 6, or detached from the suction main pipe 1 from the suction end 6, making the installation and disassembly of the spiral sleeve 9 and the suction main pipe 1 simpler and more convenient.

[0081] It should be noted that the spiral guide rail or spiral chute on the suction main pipe 1 is preferably distributed from the middle of the suction main pipe 1 to the suction end 6, and the side suction hole 8 is located at the bottom of the spiral guide rail or spiral chute. Since the distance between the spiral sleeve 9 and the suction main pipe 1 is small, and the spiral guide rail or spiral chute can also block the side suction hole 8, when the side suction hole 8 is inside the spiral sleeve 9, the suction main pipe 1 and the spiral sleeve 9 can basically prevent the side suction hole 8 from communicating with the outside world, and its impact on the negative pressure in the main suction hole 7 is basically negligible.

[0082] Depending on the type of tissue to be aspirated, the aspirator provided in this embodiment has two states during use. The specific implementation process is as follows:

[0083] 1. As shown in Figures 5 and 6, when it is necessary to aspirate tissue containing large particles of debris, the spiral cannula 9 is first controlled to move relative to the main suction pipe 1, so that the suction end 6 of the main suction pipe 1 is located within the spiral cannula 9. At this time, the side suction hole 8 is also located within the spiral cannula 9, forming a storage space 12 outside the end of the suction end 6 (specifically, the cavity between the right end of the main suction pipe 1 and the spiral cannula 9 in Figure 5). The negative pressure device is then turned on, and suction begins under the action of negative pressure. Large particles of debris are aspirated and stored in the storage space 12, achieving effective aspiration of large particles of debris from the body cavity.

[0084] When there are a lot of debris stacked in the storage space 12 and the main suction hole 7 is blocked, the suction effect (amount) of the suction main pipe 1 is reduced. At this time, the entire suction device can be moved aside first, and then the relative rotation between the spiral sleeve 9 and the suction main pipe 1 is controlled to make the side suction hole 8 on the side wall of the suction end 6 extend out of the spiral sleeve 9, and at the same time, the storage space 12 formed between the spiral sleeve 9 and the suction main pipe 1 disappears. In this way, on the one hand, the stacked large-particle debris can be pushed out of the storage space 12, and on the other hand, the negative pressure can be turned off and the negative pressure state of the suction main pipe 1 can be released by using the side suction hole 8, so that the large-particle debris at the main suction hole 7 will automatically fall off without the need to disassemble and clean the suction main pipe 1. In actual application, through the above-mentioned repeated operations, the effective absorption, removal and collection of large-particle debris can be achieved more quickly, thereby ensuring the smooth progress of the operation.

[0085] 2. As shown in Figures 7 and 8, when it is necessary to absorb liquid and small particles that will not cause blockage, the suction end 6 can be made flush with the right end of the spiral sleeve 9, or the suction end 6 and the side suction hole 8 can be located outside the spiral sleeve 9. At this time, the main suction hole 7 can be used to absorb liquid and small particles, or the main suction hole 7 and the side suction hole 8 can be used to absorb liquid and small particles at the same time, thereby increasing the suction speed.

[0086] It can be seen from the above specific implementation process that the suction device provided in this embodiment has the ability to steplessly adjust the size of the negative pressure suction force according to needs when sucking different materials, effectively suck large particles of debris, prevent the inside of the suction main pipe 1 from being blocked, and quickly unblock the storage space 12 when it is blocked, making it easy to obtain the sucked tissue in time, and effectively ensuring the technical effect of the surgical process.

[0087] Example 2

[0088] As shown in Figures 1-3, based on Example 1, this example further optimizes the structure of the suction end.

[0089] Specifically, the number of main suction holes 7 can be one or more (including two). When there is only one main suction hole 7, the diameter of the main suction hole 7 is smaller than the inner diameter of the main suction pipe 1, thereby preventing large particles of debris from entering the main suction pipe 1 and causing blockage. When there are multiple main suction holes 7, the multiple main suction holes 7 can be separated by partitions to selectively prevent debris of different sizes from entering the main suction pipe 1 and prevent blockage.

[0090] In this embodiment, as shown in Figure 3, multiple side suction holes 8 are provided, distributed axially along the main suction pipe 11. For example, there may be four side suction holes 8, which may be arranged in a straight line or in a spiral pattern along the main suction pipe 1. The multiple side suction holes 8 allow for stepless adjustment of the negative pressure suction force of the main suction pipe 1, thereby enhancing tissue aspiration.

[0091] The present embodiment does not limit the shapes and sizes of the main suction hole 7 and the side suction hole 8, which can be set to be circular, square, etc. according to needs.

[0092] Example 3

[0093] As shown in FIG. 1 , FIG. 2 and FIG. 4 , based on Example 1, the structure of the spiral sleeve 9 is further optimized in this embodiment.

[0094] Specifically, since the right end of the spiral sleeve 9 usually needs to enter the body cavity along with the suction end, and the spiral sleeve 9 has a smooth structure that is not convenient for rotation control, for this reason, this embodiment provides an anti-slip pattern 18 on the end of the spiral sleeve 9 close to the negative pressure connection end 2. The anti-slip pattern 18 can be a striped structure or a raised structure, thereby increasing the anti-slip friction between the finger and the spiral sleeve 9, making the rotation control of the spiral sleeve 9 more stable and reliable.

[0095] Example 4

[0096] As shown in Figures 9-16, this embodiment also provides a second anti-clogging tissue collection aspirator, which includes a suction main pipe 1 that can be made in one piece by injection molding or 3D printing. The suction main pipe 1 includes a negative pressure connection end 2 and a suction end 6, and also includes a handheld section 3, an external thread section 4 and a light rod section 5 arranged in sequence from left to right. The negative pressure connection end 2 is located at the left end of the handheld section 3 (equivalent to the left end of the handheld section 3 being the negative pressure connection end 2). The negative pressure connection end 2 is provided with a fastening ring 17 protruding from the outer surface. The number of fastening rings 17 can be 1, 2 or 3, etc. The negative pressure connection end 2 can be sealed and fixedly connected to the negative pressure equipment through the fastening ring 17. The outer surface of the external thread section 4 is provided with a spiral slide rail or a spiral slide groove. The suction end 6 is located at the right end of the light rod section 5 (equivalent to the right end of the light rod section 5 being the suction end 6). The suction end 6 includes an end face and an end head near the end face. The end face of the suction end 6 is provided with a main suction hole 7, and the side wall of the suction end 6 is provided with a side suction hole 8. During actual use, the suction main tube 1 is extended into the body cavity through the suction end 6 , and the main suction hole 7 and the side suction hole 8 are used to suck debris tissue and accumulated fluid.

[0097] The above-mentioned suction main pipe 1 is also provided with a spiral sleeve 9, which can also be made of an integral body by injection molding or 3D printing. The spiral sleeve 9 includes a spiral section 10 and a storage section 11. The inner surface of the spiral section 10 is provided with a spiral groove or a spiral slide rail. The spiral section 10 is connected to the external threaded section 4 through the threaded structure of the spiral groove and the spiral slide rail. The spiral sleeve 9 can be inserted into the suction main pipe 1 from the suction end 6, or detached from the suction main pipe 1 from the suction end 6, making the installation and disassembly of the spiral sleeve 9 and the suction main pipe 1 simpler and more convenient. Under the premise that the spiral sleeve 9 is not subject to external force rotation control, the spiral sleeve 9 will be positioned on the suction main pipe 1 and cannot move; when the spiral sleeve 9 is subject to external force rotation control, the spiral sleeve 9 can move spirally on the suction main pipe 1. The storage section 11 is sleeved onto the polished rod section 5, and the outer diameter of the storage section 11 is smaller than that of the spiral section 10. This allows the outer diameter of the suction end of the aspirator to be reduced while maintaining the inner diameter of the suction main tube 1, thereby facilitating effective tissue aspiration in even narrower spaces. Typically, the length of the spiral section 10 can be slightly longer than that of the externally threaded section 4, and preferably shorter than that of the polished rod section 5.

[0098] When the spiral sleeve 9 is rotated by an external force, relative movement can occur between the spiral sleeve 9 and the suction main pipe 1. During the relative movement, the suction end 6 can be located outside the storage section 11 of the spiral sleeve 9, or the suction end 6 can be located inside the storage section 11 of the spiral sleeve 9 and the storage section 11 is used to form a storage space 12. In this way, the suction device can be adjusted to different suction structures, thereby facilitating effective suction of different tissues (including small-particle debris tissue, large-particle debris tissue and effusion).

[0099] Those skilled in the art will appreciate that, in this embodiment, the relative movement between the spiral sleeve 9 and the main suction pipe 1 can also be achieved by rotating the main suction pipe 1 .

[0100] Compared with the first type of suction device provided in Example 1, the second type of suction device provided in this embodiment reduces the outer diameter of the right end of the spiral sleeve 9 while ensuring that the outer diameter of the left end remains unchanged, so that the spiral sleeve 9 has both stable and reliable structural strength and can reduce the outer diameter of the suction end of the suction device while ensuring that the inner diameter of the suction main pipe 1 remains unchanged, thereby facilitating its application in a smaller space for effective tissue absorption. It should be noted here that those skilled in the art can also achieve the function of effective tissue absorption in a smaller space by reducing the outer diameter of the spiral sleeve 9 in the first type of suction device. However, this will result in poor structural strength of the spiral sleeve 9, which cannot meet product quality requirements. At the same time, the spiral sleeve 9 will be inconvenient to operate due to its smaller outer diameter.

[0101] In this embodiment, the thread structure on the external thread segment 4 can be continuous, discontinuous, or a partial thread structure. In this embodiment, the thread structure preferably covers the entire external thread segment 4 .

[0102] This embodiment further defines the suction main pipe 1 and the spiral sleeve 9. As shown in FIG12 , the minor diameter of the thread of the external thread section 4 on the suction main pipe 1 is set to D1, the major diameter of the thread is set to D2, and the diameter of the suction end of the suction main pipe 1 is set to D3. Then, D2>D3, and D2>D1. Normally, D1≥D3, but in some cases, D1<D3 can also implement this solution. As shown in FIG15 , the minor diameter of the internal thread on the spiral section 10 is set to d1, the major diameter of the thread is set to d2, and the diameter of the storage section 11 is set to d3. Then, d2>d3, and d2>d1. Normally, d1≥d3, but in some cases, d1<d3 can also implement this solution.

[0103] In this embodiment, as shown in Figures 9-11 and 15-16, the outer surface of the spiral segment 10 and the outer surface of the storage segment 11 are transitioned through a cone or a bevel, so that the spiral segment 10 and the storage segment 11 are smoothly connected, thereby avoiding the formation of sharp corners or edges between the two, and preventing scratches on patients or users.

[0104] Figures 17-19 of this embodiment illustrate the structure of the aspirator forming a storage space 12. In this case, the aspirator can be used to aspirate tissue including large particles of debris. Figures 20-22 illustrate the structure of the aspirator with the suction end positioned outside the storage section 11. In this case, the aspirator can aspirate accumulated fluid and small particles of debris using the main suction hole 7 and the side suction hole 8. As can be seen from Figures 20-22, in this embodiment, the inner diameter of the suction main pipe 1 remains unchanged, while the outer diameter of the storage section 11 on the spiral sleeve 9 is reduced. This ensures that the aspirator has both stable and reliable aspiration capabilities and can be used to effectively aspirate tissue in confined spaces.

[0105] Depending on the type of tissue to be aspirated, the aspirator provided in this embodiment has two states during use. The specific implementation process is as follows:

[0106] 1. As shown in Figures 17-19, when tissue containing large debris needs to be aspirated, the spiral cannula 9 and the main suction pipe 1 are first controlled to move relative to each other, so that the suction end 6 of the main suction pipe 1 is located within the storage section 11 of the spiral cannula 9. At this time, the side suction hole 8 is also located within the storage section 11 of the spiral cannula 9, so that the right side of the suction end 6 passes through the storage section 11 to form an external storage space 12. The negative pressure device is then turned on, and suction begins under the action of negative pressure. Large debris is aspirated and stored in the storage space 12, achieving effective aspiration of large debris from the body cavity.

[0107] When there is a lot of debris stacked in the storage space 12 and it blocks the main suction hole 7, the suction effect (amount) of the suction main pipe 1 is reduced. At this time, the entire suction device can be moved aside first, and then the relative rotation between the spiral sleeve 9 and the suction main pipe 1 is controlled to make the side suction hole 8 on the side wall of the suction end 6 extend out of the storage section 11, and at the same time, the storage space 12 formed between the storage section 11 and the suction main pipe 1 disappears. In this way, on the one hand, the stacked large-particle debris can be pushed out of the storage space 12, and on the other hand, the negative pressure can be turned off and the negative pressure state of the suction main pipe 1 can be released by using the side suction hole 8, so that the large-particle debris at the main suction hole 7 automatically falls and is collected. In actual application, through the aforementioned repeated operations, the effective absorption and collection of large-particle debris can be achieved more quickly, thereby ensuring the smooth progress of the operation.

[0108] 2. As shown in Figures 20-22, when it is necessary to absorb accumulated liquid and small particles of debris, the suction end 6 can be made flush with the right end of the storage section 11, or the suction end 6 and the side suction hole 8 can be located outside the storage section 11. At this time, the main suction hole 7 can be used to absorb liquid and small particles of debris, or the main suction hole 7 and the side suction hole 8 can be used to absorb liquid and small particles of debris at the same time, thereby increasing the suction speed.

[0109] It can be seen from the above specific implementation process that the suction device provided in this embodiment adopts the combination of the suction main pipe 1 and the spiral sleeve 9, and reduces the outer diameter of the storage section 11 on the spiral sleeve 9. Therefore, it has the technical effects of steplessly adjusting the negative pressure suction force according to needs, effectively absorbing large particles of debris, preventing blockage inside the suction main pipe 1, and being able to quickly unblock the storage space 12 when it is blocked, being suitable for suction in smaller spaces, facilitating timely acquisition of the sucked tissue, and effectively ensuring the progress of the operation.

[0110] Example 5

[0111] Based on Example 4, this example further optimizes the distance between the storage section and the polished rod section.

[0112] Specifically, the gap between the storage section 11 and the polished rod section 5 is preferably 0-1 mm. For example, the gap can be 0.2 mm, 0.4 mm, 0.6 mm, etc., which makes the gap between the storage section 11 and the polished rod section 5 smaller. In actual use, the inner surface of the storage section 11 can be used to play a certain role in blocking the side suction hole 8, avoiding affecting the suction effect of the main suction hole 7 when only the main suction hole 7 is used.

[0113] Example 6

[0114] As shown in Figures 9-14, based on Example 4, this example further optimizes the structure of the attractor.

[0115] Specifically, a limiting step 13 for limiting the spiral sleeve 9 is provided between the hand-held section 3 and the external threaded section 4. The position of the limiting step 13 is such that when the spiral sleeve 9 moves to abut the limiting step 13, all the side suction holes 8 are located outside the spiral sleeve 9, thereby facilitating quick and accurate exposure of all the side suction holes 8, and making operation simpler and more convenient.

[0116] Example 7

[0117] In some extreme cases, the suction device may be completely blocked, forming a negative pressure state in the suction main tube 1, and there is no channel connecting to the outside world, making the suction device unable to be opened. Based on this, this embodiment designs a negative pressure release structure based on Example 4.

[0118] Specifically, as shown in Figures 9-14, the suction main pipe 1 is provided with a vent hole 14 and a matching plug 16 for blocking the vent hole 14. The number of the vent hole 14 is at least one, and the plug 16 is inserted into the vent hole 14 to block the vent hole 14.

[0119] Furthermore, as shown in Figures 9-14 and 23, an annular groove is provided on the handle section 3 near the stop step 13. A sealing ring 15 curled into an annular shape is fixed in the annular groove. The two ends of the sealing ring 15 are at least slightly spaced apart to facilitate removal of the sealing ring 15 from the annular groove. The aforementioned vent hole 14 is located at the bottom of the annular groove, and the plug 16 is integrally formed with the sealing ring 15, thereby facilitating quick installation and removal of the plug 16.

[0120] In this embodiment, when the suction device is in an extreme situation and cannot be opened, the negative pressure state of the suction device can be released by turning off the negative pressure device and removing the plug 16, which is simple and convenient to operate.

[0121] Example 8

[0122] As shown in Figures 9-12 and 14-16, based on Example 4, this example further optimizes the structure of the attractor.

[0123] Specifically, the hand-held section 3 and the spiral section 10 are both provided with anti-slip grooves 18. The anti-slip grooves 18 can be either a striped structure or a raised structure, thereby increasing the anti-slip friction between the fingers and the suction device, facilitating the accurate gripping operation of the suction device, and making the rotation control of the spiral sleeve 9 more stable and reliable.

[0124] Example 9

[0125] As shown in Figures 10 and 12-14, based on Example 1, this embodiment further optimizes the structure of the suction end.

[0126] Specifically, the number of main suction holes 7 can be one or more (including two). When there is only one main suction hole 7, the diameter of the main suction hole 7 is smaller than the inner diameter of the main suction pipe 1, thereby preventing large particles of debris from entering the main suction pipe 1 and causing internal blockage. When there are multiple main suction holes 7, the multiple main suction holes 7 can be separated by partitions to selectively prevent debris of different sizes from entering the main suction pipe 1 and prevent internal blockage.

[0127] In this embodiment, as shown in Figures 10, 12-14, multiple side suction holes 8 are provided, distributed axially along the main suction pipe 11. For example, there may be four side suction holes 8, which may be arranged in a straight line or in a spiral pattern along the main suction pipe 1. The multiple side suction holes 8 allow for stepless adjustment of the negative pressure suction force of the main suction pipe 1, thereby enhancing tissue aspiration.

[0128] The present embodiment does not limit the shapes and sizes of the main suction hole 7 and the side suction hole 8, which can be set to be circular, square, etc. according to needs.

[0129] Example 10

[0130] This embodiment also provides a method for using the anti-clogging tissue collection aspirator, which includes the following steps:

[0131] S1: The spiral sleeve is rotated by an external force, causing the spiral sleeve and the suction main pipe to rotate relative to each other, and the suction end of the suction main pipe is controlled to extend outside the spiral sleeve, forming a suction structure in which the main suction hole and the side suction hole are both located outside the spiral sleeve; or the suction end of the suction main pipe is controlled to be flush with the right end of the spiral sleeve, forming a suction structure with only the main suction hole; or the suction end of the suction main pipe is controlled to be located inside the spiral sleeve, and the spiral sleeve is used to form a suction structure with a storage space outside the suction end;

[0132] S2: When the tissue to be aspirated in the body cavity is small particles of debris and effusion, use a suction structure with both the main suction hole and the side suction hole located outside the spiral cannula for aspiration, or use a suction structure with only the main suction hole for aspiration; when the tissue to be aspirated in the body cavity is large particles of debris, use a suction structure with a storage space for aspiration;

[0133] S3: When there are many large particles of debris sucked into the storage space and the main suction hole is blocked, first move the entire suction device aside, then control the relative movement between the spiral sleeve and the suction main pipe, so that the side suction hole on the side wall of the suction end extends out of the spiral sleeve, so that the storage space formed between the spiral sleeve and the suction main pipe disappears, and the stacked large particles of debris are pushed out of the storage space. Then, the negative pressure is turned off and the negative pressure state is released by using the side suction hole, so that the large particles of debris at the main suction hole automatically fall and are collected.

[0134] In detail, this embodiment adopts the same technical means as any of the above embodiments when used and can produce the same technical effects, which will not be repeated here.

Claims

1. An anti-clogging tissue collection aspirator, characterized by: The invention comprises a suction main pipe (1), the suction main pipe (1) comprising a negative pressure connection end (2) and a suction end (6), the end surface of the suction end (6) being provided with a main suction hole (7), and the side wall of the suction end (6) being provided with a side suction hole (8); a spiral sleeve (9) being provided on the suction main pipe (1), and when an external force rotates the spiral sleeve (9) or the suction main pipe (1), relative movement occurs between the spiral sleeve (9) and the suction main pipe (1), and during the relative movement, the suction end (6) is located outside the spiral sleeve (9), or the suction end (6) is located inside the spiral sleeve (9) and a storage space (12) is formed by utilizing the spiral sleeve (9).

2. The anti-clogging tissue collection aspirator according to claim 1, characterized in that: The outer surface of the suction main pipe (1) is provided with a spiral slide rail, and the inner surface of the spiral sleeve (9) is provided with a corresponding spiral slide groove, or the outer surface of the suction main pipe (1) is provided with a spiral slide groove, and the inner surface of the spiral sleeve (9) is provided with a corresponding spiral slide rail.

3. The anti-clogging tissue collection aspirator according to claim 2, characterized in that: The spiral slide rail or spiral slide groove on the suction main pipe (1) is located between the middle of the suction main pipe (1) and the suction end (6), and the spiral sleeve (9) is inserted into the suction main pipe (1) from the suction end (6) or detached from the suction main pipe (1) from the suction end (6).

4. The anti-clogging tissue collection aspirator according to claim 1, characterized in that: A partition is provided in the middle of the main suction hole (7) to separate the main suction hole (7), and there are multiple side suction holes (8), and the multiple side suction holes (8) are distributed axially along the suction main pipe (1).

5. The anti-clogging tissue collection aspirator according to claim 1, characterized in that: The spiral sleeve (9) is provided with anti-slip grooves (18).

6. An anti-clogging tissue collection aspirator, comprising a suction main tube (1), characterized in that: The suction main pipe (1) comprises a negative pressure connection end (2) and a suction end (6), the end surface of the suction end (6) is provided with a main suction hole (7), and the side wall of the suction end (6) is provided with a side suction hole (8); it also comprises a handheld section (3), an external thread section (4) and a polished rod section (5) arranged in sequence, the negative pressure connection end (2) is located at the left end of the handheld section (3), and the suction end (6) is located at the right end of the polished rod section (5); The suction main pipe (1) is provided with a spiral sleeve (9), the spiral sleeve (9) comprising a spiral section (10) and a storage section (11), the spiral section (10) being threadedly connected to the external thread section (4), the storage section (11) being sleeved on the light rod section (5), and the outer diameter of the storage section (11) being smaller than the outer diameter of the spiral section (10); when the spiral sleeve (9) is rotated by an external force, relative movement occurs between the spiral sleeve (9) and the suction main pipe (1), and during the relative movement, the suction end (6) is located outside the storage section (11), or the suction end (6) is located inside the storage section (11) and a storage space (12) is formed by utilizing the storage section (11).

7. The anti-clogging tissue collection and suction device according to claim 6, characterized in that: The gap between the storage section (11) and the polished rod section (5) is 0-1 mm.

8. The anti-clogging tissue collection and suction device according to claim 6, characterized in that: The outer surface of the spiral section (10) and the outer surface of the storage section (11) are transitioned via a frustum or an inclined surface.

9. The anti-clogging tissue collection and suction device according to claim 6, characterized in that: A limiting step (13) for limiting the position of the spiral sleeve (9) is provided between the handheld section (3) and the external thread section (4).

10. The anti-clogging tissue collection aspirator according to claim 6, characterized in that: The suction main pipe (1) is provided with a vent hole (14) and a matching plug (16) for sealing the vent hole (14).

11. The anti-clogging tissue collection and suction device according to claim 10, characterized in that: An annular groove is provided on the hand-held section (3) near the limiting step (13), a sealing clamp (15) curled into a ring shape is clamped in the annular groove, the vent hole (14) is located at the bottom of the annular groove, and the plug (16) is integrally formed on the sealing clamp (15).

12. The anti-clogging tissue collection and suction device according to claim 6, characterized in that: The negative pressure connection end (2) is provided with a fastening ring (17) protruding from the outer surface.

13. The anti-clogging tissue collection and suction device according to claim 6, characterized in that: The spiral sleeve (9) is inserted into the suction main pipe (1) from the suction end (6), or is separated from the suction main pipe (1) from the suction end (6).

14. The anti-clogging tissue collection aspirator according to claim 6, characterized in that: A partition is provided in the middle of the main suction hole (7) to separate the main suction hole (7), and there are multiple side suction holes (8), and the multiple side suction holes (8) are distributed axially along the suction main pipe (1).

15. The anti-clogging tissue collection and suction device according to claim 6, characterized in that: The handheld section (3) and the spiral section (10) are both provided with anti-slip grooves (18).

16. A method for using the anti-clogging tissue collection aspirator according to any one of claims 1 to 15, characterized in that: The steps include: S1: external force is applied to rotate the spiral sleeve (9), so that the spiral sleeve (9) and the suction main pipe (1) rotate relative to each other, and the suction end (6) of the suction main pipe (1) is controlled to extend outside the spiral sleeve (9), thereby forming a suction structure in which the main suction hole (7) and the side suction hole (8) are both located outside the spiral sleeve (9); or the suction end (6) of the suction main pipe (1) is controlled to be flush with the right end of the spiral sleeve (9), thereby forming a suction structure with only the main suction hole (7); or the suction end (6) of the suction main pipe (1) is controlled to be located inside the spiral sleeve (9), and the spiral sleeve (9) is used to form a suction structure with a storage space (12) outside the suction end (6); S2: When the tissue to be sucked in the body cavity is small particles of debris and effusion, suction is performed using a suction structure in which both the main suction hole (7) and the side suction hole (8) are located outside the spiral sleeve (9), or suction is performed using a suction structure with only the main suction hole (7); when the tissue to be sucked in the body cavity is large particles of debris, suction is performed using a suction structure with a storage space (12); S3: When the large particles of debris sucked into the storage space (12) are too many and block the main suction hole (7), the entire suction device is first moved aside, and then the spiral sleeve (9) and the suction main pipe (1) are controlled to move relative to each other, so that the side suction hole (8) on the side wall of the suction end (6) extends out of the spiral sleeve (9), so that the storage space (12) formed between the spiral sleeve (9) and the suction main pipe (1) disappears, and the stacked large particles of debris are pushed out of the storage space (12), the negative pressure is closed, and the negative pressure state is released by using the side suction hole (8), so that the large particles of debris at the main suction hole (7) automatically fall and are collected.

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