Anti-blocking aspirator with double-suction structure

Abstract

The utility model discloses an anti-blocking aspirator with a double-aspiration structure, which relates to the technical field of medical instruments and comprises an aspiration tube, an aspiration tube, an aspiration tube, an aspiration tube and an aspiration tube. The sleeve is movably arranged on the suction tube, and a first suction structure and a second suction structure which are provided with disintegrating slag containing spaces can be formed by moving the sleeve; and the static friction piece can keep the sleeve fixed after the sleeve stops moving. According to the utility model, the sleeve which can move under the action force and can be kept fixed after the action force is lost is additionally arranged on the conventional suction tube, and the sleeve is controlled to move, so that on one hand, the suction device can be simultaneously provided with a suction structure suitable for sucking disintegrating slag materials which are easy to cause blockage and a suction structure suitable for sucking liquid materials which cannot cause blockage; on the other hand, when many disintegrating slag materials are sucked and blockage occurs, the blocked disintegrating slag materials can be removed at a time, and therefore the technical problem that when an existing suction device is blocked, the disintegrating slag materials are inconvenient to clean is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to an anti-blocking aspirator with a double suction structure. Background Art

[0002] During a surgical operation, an aspirator is one of the essential surgical instruments. It can suck out the bleeding, debris, blood clots, and other liquids during the operation to keep the surgical field clear. However, after the debris materials are sucked, the aspirator is often blocked, for example, blocked inside the tube body of the aspirator or at the suction port, which then causes the surgical operation to be unable to proceed normally and affects the surgical process.

[0003] To solve the technical problem that the aspirator is easily blocked, the patent document with the publication number CN2834450Y discloses an anti-blocking aspirator, which prevents blockage by arranging an anti-blocking net at the front end of the inner cavity of the aspirator tube. Although this aspirator has a good anti-blocking effect, after careful analysis by the inventor, it is found that it still has the following technical problems:

[0004] 1. When the anti-blocking net is blocked by relatively large debris materials, on the one hand, tools are needed to clamp out the debris materials for cleaning, and on the other hand, there is negative pressure inside the tube body, resulting in a complex and inefficient cleaning process.

[0005] 2. This aspirator cannot adjust the magnitude of the negative pressure accordingly according to the amount of liquid materials to be aspirated. For example, when there is more liquid material to be aspirated, the aspiration speed cannot be increased, resulting in a slow aspiration speed, which is likely to affect the surgical process and effect. Summary of the Utility Model

[0006] The purpose of the utility model is to overcome the above-mentioned technical problems existing in the prior art, and provides an anti-blocking aspirator with a double suction structure. The key innovation point of the utility model is to add a sleeve on the existing suction tube that can move under the action of force and remain fixed when the force is lost. By controlling the different positions of the sleeve on the suction tube, on the one hand, the aspirator can have a suction structure suitable for sucking debris materials that are likely to cause blockage and a suction structure suitable for sucking liquid materials that do not cause blockage; on the other hand, when a large amount of debris materials are sucked and blocked, the blocked debris materials can be cleared at one time, thus solving the technical problem that it is inconvenient to clean the debris materials when the existing aspirator is blocked.

[0007] To achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0008] An anti-blocking aspirator with a double suction structure, comprising:

[0009] A suction tube, and a suction port is arranged at the right end of the suction tube;

[0010] A sleeve, movably arranged on the suction tube, and by moving the sleeve to the right, a first suction structure with a slag-containing space can be formed when the suction port is inside the sleeve; by moving the sleeve to the left, a second suction structure can be formed when the suction port is outside the sleeve.

[0011] A static friction member that can keep the sleeve fixed after the sleeve stops moving.

[0012] The depth of the slag-containing space is greater than 0.

[0013] The static friction member is an elastic retaining ring fixed between the sleeve and the suction tube.

[0014] A ring groove is provided on the inner surface of the sleeve / the outer surface of the suction tube, and the elastic retaining ring is fixed on the inner surface of the sleeve / the outer surface of the suction tube through the ring groove.

[0015] The static friction member includes an axial slot and a silicone rubber sleeve. The axial slot is opened on the sleeve, and the silicone rubber sleeve is fixedly wrapped around the axial slot through the sleeve, and the silicone rubber sleeve keeps the sleeve fixed through the axial slot.

[0016] The suction port includes a main suction port provided on the end face of the suction tube and a side suction port provided on the side of the suction tube.

[0017] A partition that divides the main suction port into at least two parts is provided inside the main suction port.

[0018] The number of the side suction ports is multiple, and the multiple side suction ports are arranged in a spiral shape in the axial direction of the suction tube.

[0019] Anti-slip patterns are provided on the sleeve.

[0020] The advantages of adopting the present utility model are as follows:

[0021] 1. The key innovation point of the present utility model is that a sleeve that can move under the action of force and keep fixed when the force is lost is added to the existing suction tube. In actual application, by moving the sleeve to the right, a first suction structure with a slag-containing space can be formed when the suction port is inside the sleeve. Since the first suction structure has a slag-containing space, it is suitable for sucking slag materials that are likely to cause blockage. By moving the sleeve to the left, a second suction structure can be formed when the suction port is outside the sleeve. Since the second suction structure makes the suction port extend out, it is suitable for sucking liquid materials that will not cause blockage.

[0022] Further, when the first attracting structure sucks a large amount of materials in the slag accommodating space, resulting in the blockage of the suction port, it can be switched to the second attracting structure, and the right end of the suction pipe is used to push the blocked slag materials out of the slag accommodating space to quickly remove the blockage (at this time, the slag accommodating space will disappear). For example, after pushing the slag materials out of the slag accommodating space, the blockage can be removed by turning off the negative pressure to make the slag materials fall automatically. Through the above repeated operations, the effective suction of the slag materials can be achieved more quickly, and the blockage of the suction port can be better removed. At the same time, it is not necessary to disassemble and clean the suction pipe, ensuring the smooth progress of the operation.

[0023] In addition, the static friction member can generate a certain frictional force between the sleeve and the suction pipe, which makes the sleeve and the suction pipe not move relative to each other when no external force is applied. It can fix and stop the suction pipe and the sleeve at any required relative position well, and there is no axial play between the two when moving, so that the suction device is more stable and reliable during the suction operation.

[0024] Generally speaking, the utility model can form a double suction structure by controlling the position of the sleeve on the suction pipe, so as to realize the suction of different materials. It can not only enable the suction device to have the suction function of sucking slag materials that are easy to cause blockage and liquid materials that will not cause blockage, but also can remove the slag materials at one time by adjusting the position of the sleeve on the suction pipe when blockage occurs to remove the blockage, with the advantages of better anti-blocking effect, faster blockage removal speed and stronger practicability.

[0025] 2. The static friction members adopted by the utility model mainly include the structure of an elastic retaining ring and the structure of the cooperation between the axial slot and the silicone rubber sleeve. Among them, the elastic retaining ring is mainly used to keep the sleeve fixed by increasing the static frictional force between the sleeve and the suction pipe, while the damping structure of the cooperation between the axial slot and the silicone rubber sleeve mainly uses the silicone rubber sleeve to compress the sleeve slightly through the axial slot and the inner surface of the silicone rubber sleeve to generate static frictional force on the outer surface of the suction pipe to keep the sleeve fixed. Both of these two structures of static friction members have good braking effects. In actual use, as long as the applied force is greater than the static frictional force between the two, the sleeve can be moved, and when the sleeve is released, it can be kept fixed, with the advantage of convenient operation.

[0026] 3. The structure of the present utility model, which respectively sets a main suction port and a side suction port at the right end of the suction tube, on the one hand, when unclogging the main suction port and the slag accommodation space, only need to push the slag material out of the slag accommodation space to expose the side suction holes, then the negative pressure state of the suction tube can be relieved by using the side suction holes, so as to quickly eliminate the blockage without shutting off the negative pressure, further improving the unclogging efficiency. On the other hand, when sucking liquid materials that will not cause blockage, the magnitude of the negative pressure suction can be adjusted by controlling the number of exposed side suction holes, so as to achieve the best sucking speed and effect. In addition, the partition can prevent large particle slag materials from entering the suction tube, having the technical effect of preventing the suction tube from being blocked.

[0027] 4. The anti-slip pattern of the present utility model can increase the friction between the human finger and the sleeve, facilitating anti-slip and operation. Description of the Drawings

[0028] Figure 1 Cross-sectional structural schematic diagram of the aspirator forming the first suction structure in Embodiment 1;

[0029] Figure 2 Cross-sectional structural schematic diagram of the aspirator forming the second suction structure in Embodiment 1;

[0030] Figure 3 Cross-sectional structural schematic diagram of the aspirator forming the first suction structure in Embodiment 2;

[0031] Figure 4 For Figure 3 Planar structural schematic diagram;

[0032] Figure 5 For Figure 3 Right-view structural schematic diagram;

[0033] Figure 6 For Figure 3 Stereoscopic structural schematic diagram;

[0034] Figure 7 Cross-sectional structural schematic diagram of the aspirator forming the second suction structure in Embodiment 2;

[0035] Figure 8 For Figure 7 Planar structural schematic diagram;

[0036] Figure 9 For Figure 7 Stereoscopic structural schematic diagram;

[0037] Figure 10 Cross-sectional structural schematic diagram of the aspirator forming the first suction structure in Embodiment 3;

[0038] Figure 11 For Figure 10 Planar structural schematic diagram;

[0039] Figure 12 is Figure 10 a three-dimensional structure schematic diagram;

[0040] Figure 13 is Figure 10 a three-dimensional structure schematic diagram of the sleeve in

[0041] Figure 14 is Figure 10 a three-dimensional structure schematic diagram of the silicone rubber sleeve in

[0042] Figure 15 is a cross-sectional structure schematic diagram of the aspirator forming a second suction structure in Embodiment 3;

[0043] Figure 16 is Figure 15 a planar structure schematic diagram;

[0044] Figure 17 is Figure 15 a three-dimensional structure schematic diagram.

[0045] In the figure, the markings are: 1. suction tube, 2. sleeve, 3. slag accommodation space, 4. negative pressure connector, 5. elastic retaining ring, 6. axial slot, 7. silicone rubber sleeve, 8. main suction port, 9. side suction port, 10. anti-slip pattern. Detailed implementation mode

[0046] It should be noted that the product described in the present utility model is one of the products actually developed by the applicant at the present stage. At present, samples of this product have been prepared and are in the trial process. Since this product involves different specifications and models, on the one hand, due to different product structures, a single patent cannot fully cover multiple structures, and on the other hand, it is also to enable the product to be better protected. Therefore, the applicant has applied for patents for multiple structures simultaneously, and the following will be described in conjunction with specific embodiments.

[0047] Embodiment 1

[0048] As Figure 1-2 shown, a clogging-proof aspirator with a double suction structure includes:

[0049] A suction tube 1, a negative pressure connector 4 for connecting to a negative pressure machine is fixed at the left end of the suction tube 1, and a suction port for sucking materials is provided at the right end. Among them, the suction port includes a main suction port 8 provided on the end face of the suction tube 1 and a plurality of side suction ports 9 provided on the side of the suction tube 1. To reduce blockage caused by slag in the suction tube 1, it is preferable to provide a partition in the main suction port 8 that divides the main suction port 8 into at least two parts. To facilitate more effective suction of liquid materials, it is preferable that the plurality of side suction ports 9 are arranged in a spiral shape along the axial direction of the suction tube 1. In addition, the shapes and sizes of the main suction port 8 and the side suction ports 9 in this embodiment are not limited, and they can be set accordingly according to requirements.

[0050] The sleeve 2 is movably arranged on the suction tube 1 and can move left and right on the sleeve 2 when subjected to an external force. And by moving the sleeve 2 to the right, a first suction structure with a slag accommodation space 3 can be formed when the suction port is located inside the sleeve 2. Since the first suction structure has the slag accommodation space 3, it is suitable for sucking slag materials that are prone to clogging. By moving the sleeve 2 to the left, a second suction structure can be formed when the suction port is located outside the sleeve 2. Since the second suction structure extends the suction port, it is suitable for sucking liquid materials that will not cause clogging.

[0051] In addition, for the first suction structure, the depth of the slag accommodation space 3 is greater than 0, and its specific depth can be adjusted accordingly according to the amount of slag materials to be sucked. For the second suction structure, when sucking liquid materials that will not cause clogging, the magnitude of the negative pressure suction can also be adjusted by controlling the exposed number of the side suction ports 9, so as to achieve the best suction speed and effect.

[0052] The static friction member is installed on the suction tube 1, on the sleeve 2, or between the sleeve 2 and the suction tube 1, etc. It can generate a certain static friction force between the sleeve 2 and the suction tube 1, so as to keep the sleeve 2 fixed after the sleeve 2 stops moving. In this embodiment, the specific structure and installation position of the static friction member are not limited, and any relevant structural member with the above functions can be used. For example, the static friction member can be an elastic rubber sleeve with a stepped hole. Its small-diameter section is sleeved on the suction tube 1, and its large-diameter section is fixedly sleeved on the left end of the sleeve 2, so as to generate a certain static friction force between the sleeve 2 and the suction tube 1. In addition, the sleeve 2 can also be designed as a two-piece structure. For example, its right section can be an elastic rubber cylinder, and its left section can be a hard tube structure, which can also generate a certain static friction force between the sleeve 2 and the suction tube 1. In addition, the sleeve 2 can also be designed as an elastic rubber cylinder structure as a whole. This elastic rubber cylinder simultaneously combines the functions of the sleeve 2 and the static friction member, which is equivalent to combining the sleeve 2 and the static friction member into one and equivalent to the elastic rubber cylinder, and can also generate the corresponding static friction force between the sleeve 2 and the suction tube 1.

[0053] It should be noted that both the above-mentioned sleeve 2 and the suction tube 1 are made of medical materials, and the distance between them is small. When the side suction holes are inside the sleeve 2, the cooperation between the suction tube 1 and the sleeve 2 can basically prevent the side suction holes from communicating with the outside, and its influence on the negative pressure in the main suction port 8 can be basically ignored.

[0054] According to an optional implementation manner of this embodiment, the left end of the sleeve 2 is provided with an anti-slip pattern 10. The anti-slip pattern 10 can be a stripe structure or a convex structure, etc., so as to increase the anti-slip friction force between the finger and the sleeve 2.

[0055] The working principle of this embodiment is:

[0056] As Figure 1 shown, when it is necessary to suck the slag materials that are likely to cause blockage, first move the sleeve 2 to the right to make the suction device form a first suction structure with a slag accommodation space 3, and then turn on the negative pressure machine. Use the slag accommodation space 3 to suck the slag materials. At this time, the slag materials smaller than the inner diameter of the main suction port 8 (including the partitioned main suction port 8) are sucked away, while the slag materials larger than the inner diameter of the main suction port 8 are sucked and stored in the slag accommodation space 3. This not only realizes the effective suction of the slag materials in the body cavity but also prevents the slag materials from blocking the suction pipe 1.

[0057] As Figure 2 shown, when it is necessary to suck the liquid materials that will not cause blockage, first move the sleeve 2 to the left to make the suction device form a second suction structure, and then turn on the negative pressure machine. Use the main suction port 8 and the side suction port 9 extending out of the sleeve 2 to suck the slag materials. During this suction process, the number of side suction ports 9 used for suction can be adjusted accordingly according to the amount of liquid materials to ensure the best suction effect.

[0058] In addition, when the first suction structure sucks a large amount of materials in the slag accommodation space 3 and causes the suction port to be blocked, it can be switched to the second suction structure. Use the right end of the suction pipe 1 to push the blocked slag materials out of the slag accommodation space 3 (at this time, the slag accommodation space 3 will disappear), and expose the side suction port 9 to relieve the negative pressure state of the suction pipe 1, so as to quickly remove the blockage without shutting off the negative pressure. Through the above repeated operations, the effective suction of the slag materials can be achieved more quickly, and the blockage of the suction port can be better relieved. At the same time, there is no need to disassemble and clean the suction pipe 1, ensuring the smooth progress of the operation.

[0059] Embodiment 2

[0060] On the basis of Embodiment 1, the structure of the static friction member is further improved in this embodiment.

[0061] As Figure 3-9 shown, the static friction member is an elastic retaining ring 5, which is fixed between the sleeve 2 and the suction pipe 1. Specifically, a ring groove can be opened on the inner surface of the sleeve 2 / the outer surface of the suction pipe 1, and the elastic retaining ring 5 is fixed on the inner surface of the sleeve 2 / the outer surface of the suction pipe 1 through the ring groove. In actual application, since the elastic retaining ring 5 itself has a certain deformation force, it can generate a certain static friction force between the sleeve 2 and the suction pipe 1 to keep the sleeve 2 fixed in place after losing the external force.

[0062] It should be noted that the number of the above elastic retaining rings 5 is one, preferably arranged at the left end of the sleeve 2, but it can also be arranged at any other position. According to needs, the number of the elastic retaining rings 5 can also be multiple, and they are respectively arranged at different positions of the sleeve 2. This embodiment is not limited to the structure of the above elastic retaining ring 5, and any similar structure such as a stop block that can play an equivalent role is equivalent to the elastic retaining ring 5.

[0063] In addition, Figure 3-6 shows a schematic diagram of the aspirator forming the first suction structure, Figure 7-9 shows a schematic diagram of forming the second suction structure. In actual use of this embodiment, only by applying a force greater than the static friction force generated by the elastic retaining ring 5 to the sleeve 2 can the movement of the sleeve 2 be controlled. After releasing the sleeve 2, the sleeve 2 will be fixed on the suction tube 1 under the action of the elastic retaining ring 5, so that the product is more stable and reliable during the suction operation.

[0064] Embodiment 3

[0065] On the basis of Embodiment 1, this embodiment further improves the structure of the static friction member.

[0066] As Figure 10-17 shown, the static friction member includes an axial slot 6 and a silicone rubber sleeve 7. The axial slot 6 is opened on the sleeve 2 and penetrates the tube wall of the sleeve 2. The silicone rubber sleeve 7 is fixedly wrapped on the axial slot 6 through the sleeve 2. Since the silicone rubber sleeve 7 is an elastic material, on the one hand, the silicone rubber sleeve 7 can compress the sleeve 2 through the axial slot 6, so as to cause slight deformation of the sleeve 2, thereby increasing the static friction force between the sleeve 2 and the suction tube 1. On the other hand, the silicone rubber sleeve 7 can generate a squeezing force on the suction tube 1 through the axial slot 6, that is, the inner surface of the silicone rubber sleeve 7 can generate a static friction force on the outer surface of the suction tube 1 through the axial slot 6. By combining the above two aspects, the sleeve 2 can be kept stationary on the suction tube 1 after losing the external force.

[0067] It should be noted that the axial slot 6 can be arranged at any position of the sleeve. The length of the silicone rubber sleeve 7 can be greater than, less than or equal to the length of the axial slot 6. The silicone rubber sleeve 7 can also be made of other soft materials.

[0068] In addition, Figure 10-12 shows a schematic diagram of the aspirator forming the first suction structure, Figure 13-14 respectively show schematic diagrams of the structure of the sleeve 2 and the silicone rubber sleeve 7, Figure 15-17 shows a schematic diagram of forming the second suction structure. In actual use of this embodiment, only by applying a force greater than the static friction force generated by the silicone rubber sleeve 7 to the sleeve 2 can the movement of the sleeve 2 be controlled. After releasing the sleeve 2, the sleeve 2 will be fixed on the suction tube 1 under the action of the silicone rubber sleeve 7, so that the product is more stable and reliable during the suction operation.

[0069] The above are only specific embodiments of the present utility model. Any feature disclosed in this specification, unless specifically described, can be replaced by other equivalent or similar-purpose alternative features; all the disclosed features, or all the steps in any method or process, except for mutually exclusive features and / or steps, can be combined in any manner.

Claims

1. A double suction structure anti-blocking suction device, characterized in that include: A suction tube (1), wherein a suction port is provided at the right end of the suction tube (1); A sleeve (2) is movably arranged on the suction pipe (1), and by moving the sleeve (2) to the right, a first suction structure having a slag accommodating space (3) can be formed when the suction port is located inside the sleeve (2); and by moving the sleeve (2) to the left, a second suction structure can be formed when the suction port is located outside the sleeve (2); The static friction member can keep the sleeve (2) fixed after the sleeve (2) stops moving.

2. The anti-blocking suction device with a double suction structure according to claim 1, characterized in that: The depth of the slag accommodating space (3) is greater than 0.

3. The anti-blocking suction device with a double suction structure according to claim 1, characterized in that: The static friction member is an elastic retaining ring (5) fixed between the sleeve (2) and the suction tube (1).

4. The anti-blocking suction device with a double suction structure according to claim 3, characterized in that: An annular groove is provided on the inner surface of the sleeve (2) / the outer surface of the suction tube (1), and the elastic retaining ring (5) is fixed to the inner surface of the sleeve (2) / the outer surface of the suction tube (1) through the annular groove.

5. The anti-blocking suction device with a double suction structure according to claim 1, characterized in that: The static friction member comprises an axial slotted hole (6) and a silicone rubber sleeve (7); the axial slotted hole (6) is formed on the sleeve (2); the silicone rubber sleeve (7) is fixedly wrapped around the axial slotted hole (6) through the sleeve (2); the silicone rubber sleeve (7) keeps the sleeve (2) fixed through the axial slotted hole (6).

6. An anti-blocking suction device with a dual suction structure according to any one of claims 1 to 5, characterized in that: The suction port comprises a main suction port (8) arranged on the end surface of the suction tube (1) and a side suction port (9) arranged on the side surface of the suction tube (1).

7. The anti-blocking suction device with a double suction structure according to claim 6, characterized in that: A partition is provided in the main suction port (8) for dividing the main suction port (8) into at least two.

8. The anti-blocking suction device with a double suction structure according to claim 6, characterized in that: The number of the side suction ports (9) is multiple, and the multiple side suction ports (9) are arranged in a spiral manner in the axial direction of the suction tube (1).

9. The anti-blocking suction device with a double suction structure according to claim 1, characterized in that: The sleeve (2) is provided with anti-slip grooves (10).

Images