Medical flushing device

Abstract

The invention provides a medical flushing device which comprises a pipe mechanism and a balloon, and the pipe mechanism comprises a flushing pipe, a backflow pipe and a pressurizing pipe; the backflow pipe is partially arranged in the flushing pipe in a penetrating manner, and the far end of the backflow pipe and the far end of the flushing pipe are kept relatively static; a cavity is formed between the outer circumferential face of the part, located in the flushing pipe, of the backflow pipe and the inner circumferential face of the flushing pipe. A flushing hole communicated with the cavity is formed in the side wall of the far end of the flushing pipe; the balloon is connected to the far end of the pressurizing tube and is communicated with the pressurizing tube; when the medical flushing device is used, the full balloon is fixed in the cavity and located on the far-end side of a focus, flushing liquid is introduced into the near-end side of the balloon through the cavity between the flushing pipe and the recycling pipe to flush the focus, and therefore the situation that waste liquid is difficult to recycle due to the fact that the waste liquid enters the deeper position of the cavity can be avoided, the waste liquid recycling effect is improved, and the medical flushing device is convenient to use. Particularly, the waste liquid is pumped back through the suction pump connected to the near end of the backflow pipe, the waste liquid recycling effect can be further improved, and waste liquid residues are reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a medical flushing device. Background Art

[0002] ENT diseases are classified according to the site of onset, such as rhinitis and nasal polyps in the nose, pharyngitis and tonsillitis in the throat, and otitis media in the ear. For most ENT diseases, minimally invasive treatment can be used. In the process of minimally invasive treatment, flushing the lesion is an essential step.

[0003] When flushing the diseased area of ​​the ear, nose and throat, the waste liquid in the cavity needs to be recovered to avoid the waste liquid concentrating in the cavity and causing secondary infection and other problems. Summary of the invention

[0004] The object of the present invention is to provide a medical flushing device, which aims to improve the flushing effect when flushing lesions in a cavity and effectively recover waste liquid in the cavity.

[0005] To achieve the above-mentioned object, the present invention provides a medical flushing device, comprising: a tube mechanism and a balloon; wherein:

[0006] The pipe mechanism includes a flushing pipe, a return pipe and a pressure-charging pipe; the return pipe is partially inserted into the flushing pipe, and the distal end of the return pipe and the distal end of the flushing pipe remain relatively stationary; a cavity is formed between the outer peripheral surface of the portion of the return pipe located in the flushing pipe and the inner peripheral surface of the flushing pipe; a flushing hole communicating with the cavity is provided on the distal side wall of the flushing pipe;

[0007] The balloon is connected to the distal end of the inflation tube and communicated with the inflation tube.

[0008] Optionally, the medical flushing device further comprises a coupling mechanism; the coupling mechanism is arranged on the flushing tube, and the coupling mechanism is connected to the charging tube;

[0009] The coupling mechanism selectively locks the charging tube or unlocks the charging tube; when the coupling mechanism locks the charging tube, the coupling mechanism and the charging tube are prevented from making relative movement along the axial direction of the charging tube, so that the length of the portion of the charging tube located between the coupling mechanism and the balloon remains unchanged; when the coupling mechanism unlocks the charging tube, the coupling mechanism and the charging tube are allowed to make relative movement along the axial direction of the charging tube, so as to change the length of the portion of the charging tube located between the coupling structure and the balloon.

[0010] Optionally, the coupling mechanism comprises a frame and a movable support portion, the frame is connected to the flushing pipe; the movable support portion is connected to the frame, and a first gap can be formed between the movable support portion and the frame; the movable support portion can also at least partially move relative to the frame along a preset direction to change the width of the first gap; the width of the first gap refers to the size of the first gap in the preset direction;

[0011] The pressure charging pipe is partially inserted into the first gap;

[0012] When the width of the first gap is smaller than the natural outer diameter of the charging tube, the movable support part and the frame together clamp the charging tube to lock the charging tube; when the width of the first gap is larger than the natural outer diameter of the charging tube, the coupling mechanism releases the lock on the charging tube.

[0013] Optionally, a receiving groove is formed on the frame; the movable supporting portion is arranged in the receiving groove and includes a movable stopper and an elastic element; the movable stopper is movably connected to the frame and can move along the preset direction; the elastic element is arranged between the movable stopper and the frame, and the opposite ends of the elastic element in the preset direction are respectively abutted against the movable stopper and the frame; the first gap is formed on the side of the movable stopper away from the elastic element.

[0014] Optionally, the preset direction intersects or is out of plane with the radial direction of the flushing pipe at the junction of the flushing pipe and the frame;

[0015] The joint mechanism further comprises a fixed support portion, which is disposed in the receiving groove and connected to the frame; the fixed support portion is located on a side of the elastic element away from the movable stopper;

[0016] The pressure charging tube presses against the surface of the fixed support portion facing away from the movable stopper, and also presses against the movable stopper.

[0017] Optionally, the frame includes a guide rod, which is disposed in the accommodating groove and extends along the preset direction; the movable stopper is sleeved on the guide rod, and the elastic element is disposed around a portion of the outer circumference of the guide rod.

[0018] Optionally, the movable support portion is at least partially located on a side of the fixed support portion close to the proximal end of the flushing tube, and the movable support portion is closer to the distal end of the charging tube than the fixed support portion; or,

[0019] The movable support portion is at least partially located on a side of the fixed support portion close to the distal end of the flushing tube, and the fixed support portion is closer to the distal end of the charging tube than the movable support portion.

[0020] Optionally, the distal end of the flushing tube is connected to the distal end of the reflux tube via an end wall; a flushing hole communicating with the cavity is formed on the end wall; and / or,

[0021] The balloon is an annular structure with an inner hole; and / or,

[0022] A through hole, a first connecting through hole and a second connecting through hole are provided on the proximal side wall of the flushing tube. The first connecting through hole and the second connecting through hole are coaxially arranged, and the axis of the first connecting through hole is inclined relative to the axis of the flushing tube; the through hole is located on the distal side of the first connecting through hole and the second connecting through hole; the proximal end of the charging tube is connected to the first connecting through hole; the tube mechanism also includes an air supply pipe, and the distal end of the air supply pipe is connected to the second connecting through hole; the proximal end of the reflux pipe passes through the through hole and extends to the outside of the flushing tube.

[0023] Optionally, the balloon is detachably and sealingly connected to the inflation tube; the flushing tube includes a first flushing tube segment and a second flushing tube segment, and the second flushing tube segment is detachably and sealingly connected to the distal end of the first flushing tube segment; the reflux tube includes a first reflux tube segment and a second reflux tube segment, the first reflux tube segment is partially inserted into the first flushing tube segment, the second reflux tube segment is detachably connected to the distal end of the first reflux tube segment, and the second reflux tube segment is inserted into the second flushing tube segment.

[0024] Optionally, the medical flushing device also includes a rib portion, which includes a rib body and a support member, wherein the rib body extends along the axial direction of the second flushing pipe segment and connects the inner circumferential surface of the second flushing pipe segment and the outer circumferential surface of the second reflux pipe segment; the support member is configured to be elastic, extends along the axial direction of the second flushing pipe segment, and is buried in the rib body.

[0025] Compared with the prior art, the medical flushing device of the present invention has the following advantages:

[0026] The aforementioned medical flushing device comprises a tube mechanism and a balloon, wherein the tube mechanism comprises a flushing tube, a reflux tube, and a pressure-charging tube; the reflux tube is partially inserted into the flushing tube, and the distal end of the reflux tube and the distal end of the flushing tube remain relatively stationary; a cavity is formed between the outer peripheral surface of the portion of the reflux tube located in the flushing tube and the inner peripheral surface of the flushing tube; a flushing hole communicating with the cavity is provided on the distal side wall of the flushing tube; the balloon is connected to the distal end of the pressure-charging tube and communicated with the pressure-charging tube; When the medical flushing device is used, the balloon in a filled state is fixed in the cavity and located at the distal side of the lesion. The flushing liquid is introduced into the proximal side of the balloon through the cavity between the flushing tube and the recovery tube to flush the lesion. In this way, the waste liquid can be prevented from entering deeper into the cavity, which makes it difficult to recover the waste liquid, thereby improving the waste liquid recovery effect. In particular, by connecting the proximal end of the reflux tube to a suction pump so as to use the suction pump to draw back the waste liquid, the waste liquid recovery effect can be further improved and the waste liquid residue can be reduced.

[0027] Further, the medical flushing device also includes a coupling mechanism, which is arranged on the flushing tube and connected to the charging tube; the coupling mechanism selectively locks the charging tube or unlocks the charging tube; when the coupling mechanism locks the charging tube, the coupling mechanism and the charging tube are prevented from making relative movement along the axial direction of the charging tube, so that the length of the portion of the charging tube located between the coupling mechanism and the balloon remains unchanged; when the coupling mechanism unlocks the charging tube, the coupling mechanism and the charging tube are allowed to make relative movement along the axial direction of the charging tube to change the length of the portion of the charging tube located between the coupling mechanism and the balloon. The arrangement of the coupling mechanism, on the one hand, can keep the portion of the pressure-charging tube located in the cavity in a taut state without stacking or kinking, thereby avoiding interference with the movement of the flushing tube in the cavity and hindering the withdrawal of waste liquid, thereby further improving the waste liquid recovery effect; on the other hand, the length of the portion of the pressure-charging tube located between the coupling mechanism and the balloon can be automatically adjusted during the process of the flushing tube exiting the cavity, thereby avoiding displacement of the balloon due to excessive force.

[0028] Furthermore, the balloon is an annular structure, and the axis of the balloon in a filled state is parallel to the axis of the pressure tube. The advantage of such a configuration is that the deeper part of the cavity can be connected to the outside through the inner hole of the balloon, avoiding the formation of negative pressure in the deeper part of the cavity during the flushing process and causing discomfort to the patient. In particular, in the case where the cavity is the ear canal, the annular balloon can also help protect the eardrum and avoid the problem of negative pressure on the distal side of the balloon causing damage to the eardrum. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to better understand the present invention and do not constitute an improper limitation of the present invention.

[0030] Figure 1 is a schematic structural diagram of a medical flushing device provided according to an embodiment of the present invention;

[0031] Figure 2 is a partial cross-sectional view of a medical flushing device provided according to an embodiment of the present invention;

[0032] Figure 3 It is a partial structural schematic diagram of a part of a medical flushing device provided according to an embodiment of the present invention;

[0033] Figure 4 yes Figure 3 A schematic longitudinal section view of a medical flushing device shown;

[0034] Figure 5 yes Figure 4 An enlarged schematic diagram of point B of the medical flushing device;

[0035] Figure 6 yes Figure 3 An enlarged schematic diagram of point A of the medical flushing device shown;

[0036] Figure 7 is a partial structural schematic diagram of another part of a medical flushing device provided according to an embodiment of the present invention;

[0037] Figure 8 yes Figure 7 An enlarged schematic diagram of point C of the medical flushing device shown;

[0038] Fig. 9 is a partial structural schematic diagram of another part of a medical flushing device provided according to an embodiment of the present invention, Fig. 9 and Figure 7 The observation direction is different;

[0039] Fig.10 yes Fig. 9 An enlarged schematic diagram of point D of the medical device is shown.

[0040] [Description of reference numerals is as follows]:

[0041] 100-pipe mechanism, 110-flushing pipe, 111-first flushing pipe section, 1111-card groove, 112-second flushing pipe section, 120-return pipe, 121-first return pipe section, 122-second return pipe section, 130-charge pipe, 140-end wall, 150-elastic clamp, 160-sealing ring, 170-rib, 171-rib body, 172-support, 180-slat, 190-gas pipe, 101-cavity, 102 -flushing hole, 200-balloon, 210-inner hole, 310-connecting tube, 320-fixed head, 400-joining mechanism, 410-frame, 411-main plate, 4111-first sub-plate body, 4112-second sub-plate body, 412-docking plate, 413-guide rod, 420-movable support part, 421-movable stopper, 422-elastic element, 430-fixed support part, 401-first gap, 10-suction pump, 20-air pump. DETAILED DESCRIPTION

[0042] The following is an explanation of the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the present embodiment only illustrate the basic concept of the present invention in a schematic manner, and only the components related to the present invention are shown in the figure instead of being drawn according to the number, shape and size of the components in the actual implementation. The type, quantity and proportion of each component in the actual implementation can be a random change, and the component layout type may also be more complicated.

[0043] In addition, each embodiment of the following description has one or more technical features, but this does not mean that the user of the present invention must implement all the technical features in any embodiment at the same time, or can only implement part or all of the technical features in different embodiments separately. In other words, under the premise that implementation is possible, those skilled in the art can selectively implement part or all of the technical features in any embodiment according to the disclosure of the present invention and according to the design specifications or implementation requirements, or selectively implement a combination of part or all of the technical features in multiple embodiments, thereby increasing the flexibility of the implementation of the present invention.

[0044] As used in this specification, the singular forms "one", "an", and "the" include plural objects, and the plural form "a plurality" includes more than two objects, unless the content clearly indicates otherwise. As used in this specification, the term "or" is generally used in a sense that includes "and / or", unless the content clearly indicates otherwise, and the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, and it can be a connection between two elements or an interactive relationship between two elements. Relational terms such as the terms "first", "second", etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations, nor do they indicate or imply relative importance or implicitly indicate the number of technical features indicated. It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] The terms "proximal end" and "distal end" used herein are based on the relative positions and orientations of the various components and parts of the medical device. Although non-limiting, the "proximal end" is the end of the medical device that is closer to the operation during normal use, and the "distal end" is the end that is closer to the patient.

[0046] In order to make the purpose, advantages and features of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings. It should be noted that the drawings are all in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. The same or similar reference numerals in the drawings represent the same or similar components.

[0047] Figure 1 is a schematic diagram of the structure of a medical flushing device provided by some embodiments of the present invention, Figure 2 is a partial cross-sectional view of the medical flushing device, Figure 3 is a partial structural schematic diagram of the medical flushing device, Figure 4 yes Figure 3Schematic diagram of the longitudinal section. Figures 1 to 4 As shown, the medical flushing device includes a tube mechanism 100 and a balloon 200. The tube mechanism 100 includes a flushing tube 110, a reflux tube 120 and a pressure-charging tube 130. The reflux tube 120 is partially inserted into the flushing tube 110, and the distal end of the reflux tube 120 remains relatively stationary with the distal end of the flushing tube 110. The outer diameter of the portion of the reflux tube 120 located in the flushing tube 110 is smaller than the inner diameter of the portion of the flushing tube 110 containing the reflux tube 120, so that a cavity 101 is formed between the outer circumference of the portion of the reflux tube 120 located in the flushing tube 110 and the inner circumference of the flushing tube 110. A flushing hole 102 communicating with the cavity 101 is formed on the distal side wall of the flushing tube 110. The balloon 200 is connected to the distal end of the pressure-charging tube 130 and is also communicated with the pressure-charging tube 130.

[0048] The medical flushing device can be used to flush the lesion site in the human body cavity, such as the nasal cavity, ear canal, throat, etc. For the convenience of description, the following text will take the use of the medical flushing device to flush the lesion site in the ear canal as an example, but those skilled in the art can modify the following description to adapt to the situation of using the medical flushing device to flush the lesion in other cavities.

[0049] The use process of the medical flushing device is as follows:

[0050] First, the balloon 200 in a decompressed state is sent into the ear canal and reaches a first target position, which is at the distal end of the lesion.

[0051] Next, the filling agent is poured into the balloon 200 by using the inflation tube 130 to fill the balloon 200 until the balloon 200 abuts against the wall of the ear canal, so as to position the balloon 200 at the first target position.

[0052] Next, the distal end of the flushing tube 110 is sent into the ear canal and reaches the second target position. The second target position is near the lesion and is on the proximal side of the first target position. It should be understood that when the distal end of the flushing tube 110 reaches the second target position, the distal end of the return tube 120 also reaches the second target position.

[0053] Next, the flushing liquid is poured into the flushing tube 110 , so that the flushing liquid reaches the ear canal through the cavity 101 between the flushing tube 110 and the return tube 120 , and can be sprayed out from the flushing hole 102 to clean the lesion site.

[0054] The used flushing liquid becomes waste liquid, and the waste liquid can be discharged from the return pipe 120. Further preferably, Figure 1 As shown, the proximal end of the return pipe 120 is connected to a suction pump 10, and the waste liquid is sucked back by the suction pump 10 to fully recycle the waste liquid, reduce or even avoid the waste liquid remaining in the ear canal, thereby reducing or even avoiding the adverse effects of the residual waste liquid on the ear canal. It can be understood that by adjusting the power of the suction pump 10, the speed of sucking the waste liquid can be adjusted to change the residence time of the flushing liquid in the ear canal.

[0055] Positioning the balloon 200 at the first target position on the distal side of the lesion site can separate the ear canal to prevent waste fluid from entering deeper into the ear canal on the distal side of the first target position, making it difficult to recover the waste fluid.

[0056] Preferably, the proximal end of the return pipe 120 is located outside the flushing pipe 110 to facilitate the discharge of waste liquid. Figure 2 As shown, a through hole (not marked in the figure) is provided on the proximal side wall of the flushing tube 110, and the proximal end of the reflux tube 120 passes through the through hole and extends to the outside of the flushing tube 110. In addition, the medical flushing device may also include the suction pump 10.

[0057] A plurality of flushing holes 102 are provided on the distal side wall of the flushing tube 110. Figure 4 and Figure 5 As shown, the plurality of flushing holes 102 located on the distal side wall of the flushing tube 110 are divided into a plurality of hole groups (not marked in the figure), each of the hole groups includes a plurality of flushing holes 102, and the plurality of flushing holes 102 of the same hole group are arranged at intervals along the circumference of the flushing tube 110, and different hole groups are arranged at intervals along the axial direction of the flushing tube 110.

[0058] Continue to refer Figure 4 and Figure 5 The distal end of the return pipe 120 and the distal end of the flushing pipe 110 can be connected through an end wall 140. The end wall 140 can be integrally formed with one of the return pipe 120 and the flushing pipe 110, or the end wall 140, the return pipe 120, and the flushing pipe 110 can be separately formed and then connected as one. In addition, the distal end of the return pipe 120 is an open end, so that waste liquid can enter the lumen of the return pipe 120 from the distal end of the return pipe 120 and be discharged from the body.

[0059] Furthermore, the end wall 140 is also provided with a plurality of flushing holes 102 in communication with the cavity 101, and the plurality of flushing holes on the end wall 140 are at least spaced apart along the circumference of the end wall 140. In this way, the flushing liquid can also be sprayed out from the flushing holes 102 on the end wall 140 to flush the balloon 200 located at the distal side of the lesion site to avoid cleaning residues.

[0060] Alternatively, if Figure 1 As shown, the flushing pipe 110 includes a first flushing pipe section 111 and a second flushing pipe section 112, and the second flushing pipe section 112 is detachably connected to the distal end of the first flushing pipe section 111. Figures 2 to 9 As shown, the reflux pipe 120 includes a first reflux pipe section 121 and a second reflux pipe section 122, and the second reflux pipe section 122 is detachably connected to the distal end of the first reflux pipe section 121. The first reflux pipe section 121 is partially inserted into the first flushing pipe section 111, specifically, the distal end of the first reflux pipe section 121 is inserted into the first flushing pipe section 111, and the proximal end of the first reflux pipe section 121 passes through the through hole on the proximal side wall of the first flushing pipe section 121 and extends to the outside of the flushing pipe 110. The second reflux pipe section 122 is inserted into the second flushing pipe section 112. The distal end of the second reflux pipe section 122 is connected to the distal end of the second flushing pipe section 112 through the end wall 140.

[0061] For the convenience of description, a treatment head is defined, and the treatment head includes the second flushing tube segment 112, the second return tube segment 122, and the end wall 140. In this way, the treatment head is detachably connected to the first flushing tube segment 111 and the first return tube segment 121. The reason for this arrangement is that during the use of the medical flushing device, the first flushing tube segment 111 and the first return tube segment 121 are located outside the patient's body, and the treatment head at least partially extends into the ear canal. For different patients, or for other cavities other than the ear canal, the treatment heads of different specifications can be replaced. The specifications here include at least the outer diameter of the treatment head, and may also include the axial length of the treatment head. In addition, the treatment head can also be used as a consumable. It can be understood that the distal end of the treatment head is the distal end of the flushing tube 110 and the distal end of the return tube 120.

[0062] The embodiment of the present invention does not limit the connection method between the treatment head and the first flushing pipe section 111 and the first return pipe section 121, as long as the two are detachable and sealed.

[0063] In a specific example, Figure 6As shown, an elastic snap ring 150 is disposed on the outer peripheral surface of the proximal end of the second flushing pipe section 112. The elastic snap ring 150 extends along the circumference of the second flushing pipe section 112 and can be formed into a C-shape or a ring. Figure 8 As shown, a groove 1111 is formed on the inner circumferential surface of the distal end of the first flushing pipe section 111, and the groove 1111 extends along the circumferential direction of the first flushing pipe section 111, and can be formed in a C-shape or a circular shape, which can be determined according to the shape of the elastic clamp 150. A sealing ring 160 is also sleeved on the inner circumferential surface of the distal end of the first flushing pipe section 111, and the sealing ring 160 is located on the proximal side of the groove 1111. A docking portion 211 is formed at the distal end of the first reflux pipe section 121, and the outer diameter of the docking portion 211 gradually decreases from the proximal end to the distal end. When assembling the treatment head and the first flushing pipe segment 111 and the first return pipe segment 121, the docking portion 211 of the first return pipe segment 121 is inserted into the proximal tube cavity of the second return pipe segment 122, and the proximal end of the second flushing pipe segment 112 is inserted into the distal tube cavity of the first flushing pipe segment 111, so that the elastic retaining ring 150 is squeezed and deformed first, and then restores its deformation after entering the groove 1111 to fill the groove 1111, and at the same time, the proximal end face of the second flushing pipe segment 112 also abuts against the sealing ring 160.

[0064] like Figure 5 and Figure 6 As shown, the second flushing pipe section 112 and the second return pipe section 122 are also connected by a rib 170. The rib 170 includes a rib body 171 and a support member 172. The rib body 171 extends along the axial direction of the second flushing pipe section 111, and one side wall of the rib body 171 is connected to the inner circumference of the second flushing pipe section 112, and the other side wall of the rib body 171 is connected to the outer surface of the second return pipe section 122. The support member 172 is an elastic member, extends along the axial direction of the second flushing pipe section 111, and is buried in the rib body 171. The treatment head bends in accordance with the direction of the ear canal during the process of entering the ear canal, and the support member 172 is conducive to keeping the treatment head in a shape adapted to the direction of the ear canal.

[0065] The support member 172 may be a slender structure made of metal, such as iron.

[0066] In addition, if Figure 8As shown, the first flushing pipe section 111 and the first return pipe section 121 can be connected by a plate strip 180. The plate strip 180 extends along the axial direction of the flushing pipe 110 and is located in the flushing pipe 110, and one side wall of the plate strip 180 is connected to the inner peripheral surface of the first flushing pipe 110, and the other side wall of the plate strip 180 is connected to the outer peripheral surface of the first return pipe section 122.

[0067] The balloon 200 has a filling cavity (not shown in the figure), which is connected to the pressure-charging tube 130. When the filling agent is poured into the filling cavity through the pressure-charging tube 130, the balloon 200 is filled. Figure 7 and Fig. 9 As shown, in an embodiment of the present invention, the balloon 200 is preferably an annular structure having an inner hole 210, and the inner hole 210 is isolated from the filling cavity. The advantage of such a configuration is that the deeper part of the ear canal can be connected to the outside through the inner hole 210 without generating negative pressure, so as to avoid tinnitus of the patient, and can further avoid the problem of eardrum damage caused by negative pressure. In addition, the filling agent can be a gas. And, for the balloon 200 in the filled state and the charging tube 130 in the straightened state, it is preferred that the axis of the balloon 200 is parallel to the axis of the charging tube 130.

[0068] The size of the inner hole 210 should be as small as possible to prevent the airflow exchange on both sides of the axial direction of the balloon 200, which causes the flushing liquid and waste liquid to pass through the inner hole 210 and enter the deeper part of the ear canal located at the distal side of the balloon 200. Preferably, the inner hole 210 is also coaxially arranged with the balloon 200, so that the flushing liquid sprayed from the flushing hole 102 of the end wall 140 can be effectively prevented from impacting the inner hole 210 and causing the inner hole 210 to become larger.

[0069] Preferably, the balloon 200 is detachably connected to the charging tube 130, so as to facilitate replacement of the balloon 200 of different specifications according to actual needs. Of course, the balloon 200 can also be used as a consumable.

[0070] Alternatively, if Fig. 9 As shown, the balloon 200 is provided with a connecting tube 310, preferably the connecting tube 310 is integrally formed with the balloon 200, and preferably the extending direction of the connecting tube 310 is parallel to the axis of the balloon 200. The connecting tube 310 can be sealed and detachably connected to the distal end of the charging tube 130 through a fixing head 320.

[0071] Optionally, a first connecting through hole (not shown in the figure) and a second connecting through hole (not shown in the figure) are provided on the proximal side wall of the flushing tube 110, and the first connecting through hole and the second connecting through hole are both located on the proximal side of the through hole. The first connecting through hole and the second connecting through hole are opposite and coaxial, and the axis of the first connecting through hole is also inclined relative to the axis of the flushing tube 110. Figure 1 As shown, the proximal end of the charging tube 130 is connected to the first connecting through hole, so that the charging tube 130 is connected to the flushing tube 110 through the first connecting through hole. The tube mechanism 100 also includes an air delivery tube 190, the distal end of which is connected to the second connecting through hole, and the air delivery tube 190 is connected to the flushing tube 110 through the second connecting through hole.

[0072] Continue to refer Figure 1 The proximal end of the gas delivery tube 190 is used to connect with an air pump 20. In addition, the proximal end of the flushing tube 110 is connected with a flushing liquid source (not shown in the figure). During the operation of the medical flushing device, the air pump 20 operates and provides gas, and the gas enters the intersection of the flushing tube 110 and the gas delivery tube 190 through the gas delivery tube 190, wherein a part of the gas enters the charging tube 130 and then enters the balloon 200 to fill the balloon 200, and the other part of the gas circulates in the charging tube 130 and forms a high-speed airflow to reduce the pressure in the flushing tube 110, so that the flushing liquid in the flushing liquid source can be sucked into the flushing tube 110.

[0073] Furthermore, the medical flushing device includes the air pump 20 .

[0074] In practice, when flushing the ear canal, as the flushing continues, the operator can move the flushing tube 110 from the distal end to the proximal end, so that the distal end of the flushing tube 110 gradually exits the ear canal, and the ear canal is cleaned from the inside to the outside. It can be understood that when the flushing tube 110 exits the ear canal, the distal end of the return tube 120 also exits the ear canal. However, during the entire cleaning process, it is expected that the portion of the charging tube 130 located in the ear canal is always in a taut state, and it is expected that the balloon 200 does not move when the treatment head gradually exits the ear canal.

[0075] Here, the reason why the portion of the charging tube 130 located in the ear canal is expected to be tightened is that the charging tube 130 can be prevented from stacking or twisting in the ear canal, thereby interfering with the flushing of the flushing liquid and the recovery of the waste liquid. On the other hand, the reason is that the portion of the charging tube 130 located in the ear canal cannot move at will, thereby preventing the moving charging tube 130 from causing unnecessary damage to the wall of the ear canal and also preventing the moving charging tube 130 from interfering with the movement of the treatment head. The reason why the balloon 200 is expected not to move during the process of the distal end of the flushing tube exiting the ear canal is that if the balloon 200 moves with the movement of the treatment head, the balloon 200 may be at least partially separated from the wall of the ear canal. In this way, the balloon 200 cannot effectively isolate the ear canal, and the flushing liquid and waste liquid may enter the deeper part of the ear canal from the gap between the balloon 200 and the wall of the ear canal, making it difficult to recover.

[0076] In view of this, if Figure 1 , Figures 7 to 10 As shown, the medical flushing device further includes a coupling mechanism 400, and the coupling mechanism 400 is respectively connected to the flushing tube 110 and the charging tube 130. In the embodiment of the present invention, the coupling mechanism 400 can lock the charging tube 130 or unlock the charging tube 130. When the coupling mechanism 400 locks the charging tube 130, the coupling mechanism 400 and the charging tube 130 cannot generate relative movement along the axial direction of the charging tube 130, so that the length of the portion of the charging tube 130 between the coupling mechanism 400 and the balloon 200 remains unchanged. After the coupling mechanism 400 unlocks the punching tube 130, the coupling mechanism 400 and the charging tube 130 can generate relative movement along the axial direction of the charging tube 130, so as to change the length of the portion of the charging tube 130 between the coupling mechanism 400 and the balloon 200.

[0077] By providing the coupling mechanism 400, it is possible to achieve the purpose that the portion of the charging tube 130 located in the ear canal is always kept taut during the entire cleaning process, and the balloon 200 does not move during the process of the treatment head gradually withdrawing from the ear canal.

[0078] The specific operations are:

[0079] After the balloon 200 is initially delivered into the ear canal and filled to be positioned at the first target position, and the distal ends of the flushing tube 110 and the return tube 120 are delivered into the ear canal and reach the second target position, the coupling mechanism 400 is first controlled to unlock the charging tube 130, and then the length of the portion of the charging tube 130 between the coupling mechanism 400 and the balloon 200 is adjusted to tighten the portion of the charging tube 130 between the coupling mechanism 400 and the balloon 200, and then the coupling mechanism 400 is controlled to lock the punching tube 130. Then, flushing can be started. During the flushing process, as long as the distal end of the flushing tube 110 does not move axially, the portion of the charging tube 130 located in the ear canal can be kept in a tightened state, and the balloon 200 does not move.

[0080] In the process of gradually withdrawing the distal ends of the flushing tube 110 and the return tube 120 from the ear canal, the coupling mechanism 400 is controlled to release the lock on the charging tube 130, so that the coupling mechanism 400 can move along the axial direction of the charging tube 130 and the length of the portion of the charging tube 130 located between the coupling mechanism 400 and the balloon 200 is increased accordingly according to the moving distance of the treatment head, thereby ensuring that the balloon 200 does not move.

[0081] In an optional embodiment, the joint mechanism 400 includes a frame 410 and a movable support portion 420. The frame 410 is connected to the flushing pipe 110, and the movable support portion 420 is connected to the frame 410, and a first gap 401 can be formed between the movable support portion 420 and the frame 410. The movable support portion 420 can also at least partially move relative to the frame 410 along a preset direction to change the width of the first gap 401. The width here refers to the size of the first gap 401 in the preset direction. The charging pipe 130 is partially inserted into the first gap 401. When the width of the first gap 401 is smaller than the natural outer diameter of the charging tube 130, the movable support part 420 and the frame 410 together clamp the charging tube 130, so that the coupling mechanism 400 locks the charging tube 130. When the movable support part 420 at least partially moves along the preset direction until the width of the first gap 401 is larger than the natural outer diameter of the charging tube 130, the movable support part 420 cannot clamp the charging tube 130 together with the frame 410, so that the coupling mechanism 400 releases the locking of the charging tube 130. The natural outer diameter of the charging tube 130 refers to the outer diameter of the charging tube 130 when it is not subjected to radial force.

[0082] Further, a receiving groove (not marked in the figure) is formed on the frame 410. The movable support part 420 is arranged in the receiving groove and includes a movable stopper 421 and an elastic element 422. The movable stopper 421 is movably connected to the frame 410 and can move along the preset direction. The elastic element 422 is arranged between the movable stopper 421 and the frame 410, and the opposite ends of the elastic element 422 in the preset direction are respectively in contact with the movable stopper 411 and the frame 410. The first gap 401 is formed between the surface of the movable stopper 421 away from the elastic element 422 and the surface of the frame 410 facing the elastic element 422. In the embodiment of the present invention, the natural width of the first gap 401 is greater than or equal to zero and less than the natural outer diameter of the charging tube 130. The natural width of the first gap 401 refers to the width of the first gap 401 when the movable stopper 421 is not subjected to the force directed to the elastic element 422 by itself. In this way, when the charging tube 130 is partially inserted into the first gap 401, and the force acting on the movable stopper 421 directed toward the elastic element 422 is not sufficient to overcome the elastic potential energy stored in the elastic element 321, the movable stopper 421 and the frame 410 clamp the charging tube 130 together; and when the force acting on the movable stopper 421 directed toward the elastic element 422 is sufficient to overcome the elastic potential energy stored in the elastic element 422, the movable stopper 421 moves in the direction of the movable stopper 421 directed toward the elastic element 422, and the width of the first gap 401 is increased to be greater than the natural outer diameter of the charging tube 130.

[0083] Further, the preset direction intersects or is not in the same plane as the radial direction of the flushing tube 110 at the junction of the flushing tube 110 and the frame 410. The coupling mechanism 400 further includes a fixed support portion 430, which is disposed in the receiving groove and connected to the frame 410. From the preset direction, the fixed support portion 430 is located on the side of the elastic element 422 away from the movable stopper 421. The charging tube 130 presses against the surface of the fixed support portion 430 away from the movable stopper 421, and the charging tube 130 also always presses against the surface of the movable stopper 421 away from the elastic element 422. The advantage of such a configuration is that, under the premise that the portion of the charging tube 130 located between the coupling mechanism 400 and the balloon 200 is in a taut state, when the distal ends of the flushing tube 110 and the reflux tube 120 exit the ear canal, the flushing tube 110 pulls the charging tube 130 so that the portion of the charging tube 130 located at the coupling mechanism 400 is subjected to an axial force directed from the distal end to the proximal end, which increases the pressure applied by the charging tube 130 on the movable stopper 421 to a level sufficient to overcome the elastic potential energy stored in the elastic element 422, thereby causing the movable stopper 421 to move in the direction from the movable stopper 421 to the elastic element 422 until the width of the first gap 401 is greater than the natural outer diameter of the charging tube 130. At this time, the joint mechanism 400 can generate relative movement with the pressure tube 130 along the axial direction of the pressure tube 130, so that the length of the portion of the pressure tube 130 located between the joint mechanism 400 and the balloon 200 increases with the movement of the treatment head. In other words, the length of the portion of the pressure tube 130 located between the joint mechanism 400 and the balloon 200 can be adaptively increased during the process in which the distal ends of the flushing tube 110 and the reflux tube 120 exit the ear canal.

[0084] In a preferred embodiment, the preset direction is the axial direction of the flushing tube 110 in the straightened state. Of course, the preset direction may also be inclined relative to the axial direction of the flushing tube 110 in the straightened state.

[0085] Optionally, the frame 410 includes two main board bodies 411 and a docking plate 412. The two main board bodies 411 are arranged at intervals along the circumference of the flushing tube 110, and the two main board bodies 411 are connected to the outer peripheral surface of the flushing tube 110. The docking plate 412 connects the two main board plates 411. The accommodating groove includes a space defined by the outer peripheral surface of the flushing tube 110, the two main board plates 411 and the docking plate 412. The movable stopper 421 is movably connected to the two main board bodies 411, and the first gap 401 can be formed between the movable stopper 421 and the docking plate 412. The elastic element 422 is arranged on the side of the movable stopper 421 away from the docking plate 412. The fixed support portion 430 is connected to the two main board plates 411.

[0086] Preferably, the main plate 411 is an L-shaped structure, and includes a first sub-plate 4111 and a second sub-plate 4112 connected to each other. The first sub-plate 4111 preferably extends along the radial direction of the flushing tube 110 and is connected to the outer peripheral surface of the flushing tube 110. The second sub-plate 4112 is connected to the end of the first sub-plate 4111 away from the flushing tube 110, and the second sub-plate 4112 extends along the preset direction. The docking plate 412 is respectively connected to the second sub-plates 4112 of the two main plates 411, and preferably, the docking plate 412 is connected to the end of the second sub-plate 4112 away from the first sub-plate 4111. The movable stopper 421 is movably connected to the second sub-plate body 4112 of the two main plate bodies 411, the fixed support portion 430 is connected to the first sub-plate body 4111 of the two main plate bodies 411, and a second gap (not marked in the figure) is provided between the fixed support portion 430 and the outer peripheral surface of the flushing tube 110.

[0087] In some examples, the second sub-plate 4112 extends from the junction with the first sub-plate 4111 toward the proximal end of the irrigation tube 110. In this case, the movable stopper 421 is closer to the proximal end of the irrigation tube 110 than the fixed support portion 430, and the distal end of the charging tube 130 first passes through the second gap to bypass the surface of the fixed support portion 430 close to the distal end of the irrigation tube 110, and then turns back and passes through the first gap 401 to bypass the sliding stopper 421 and connects to the balloon 200. In this way, the movable stopper 421 is closer to the distal end of the charging tube 130 than the fixed support portion 430.

[0088] In other examples, the second sub-plate 4112 extends from the junction with the first sub-plate 4111 toward the direction close to the distal end of the flushing tube 110. In this case, the movable stopper 421 is closer to the distal end of the flushing tube 110 than the fixed support portion 430, and the distal end of the charging tube 130 first passes through the first gap 401 and bypasses the surface of the movable stopper 421 close to the distal end of the flushing tube 110, and then turns back and passes through the second gap to bypass the fixed support portion 430 and connects to the balloon 200. In this way, the fixed support portion 430 is closer to the distal end of the charging tube 130 than the movable stopper 421.

[0089] It should be noted that the movable stopper 421 can be directly or indirectly connected to the second sub-plate 4112. For example, the second sub-plate 4112 is also provided with a through groove extending through the arrangement direction of the two main plates 411. The accommodating groove also includes the through groove, and a guide groove is provided on the groove wall of the through groove. A slider is formed on the surface of the groove wall of the movable stopper 421 facing the through groove, and the slider is slidably connected in the guide groove. For another example, the frame 410 also includes a guide rod 413, which is connected to the second sub-plate body 4112 and extends along the preset direction. The movable stopper 421 is sleeved on the guide rod 413 and can move along the guide rod 413. At this time, the elastic element 422 can be arranged around a part of the outer circumference of the guide rod 413. Optionally, the elastic element 422 includes a spring, and the spring is sleeved on a part of the outer circumference of the guide rod 413. In addition, when the through groove is formed on the second sub-plate body 4112 , the guide rod 413 can be disposed in the through groove.

[0090] Preferably, the portion of the movable stopper 421 on the surface of the side close to the docking plate 412 for contacting the charging tube 130 is a portion of a circumferential surface. In some examples, the movable stopper 421 is a block structure, and the surface of the block structure facing the docking plate 412 is a portion of a circumferential surface. In other examples, the movable stopper 421 includes a first connecting member and a first pulley, the first connecting member is movably connected to the second sub-plate 4112, and the first pulley is sleeved on the first connecting member.

[0091] In addition, the surface of the fixed support part 430 on the side away from the movable support part 420 in the axial direction of the flushing tube 110 is also preferably a part of the circumferential surface. For example, the fixed support part 430 is a block structure, and the surface of one end of the block structure away from the movable end of the movable support part 420 is a part of the circumferential surface. For another example, the fixed support part 430 includes a second connecting member and a second pulley, the first connecting member is connected to the frame 410, and the second pulley is sleeved on the first contact member.

[0092] It should be noted that, in the case where the flushing pipe 110 includes the first flushing pipe section 111 and the second flushing pipe section 112 that are detachably connected, the coupling mechanism 400 is connected to the first flushing pipe section 111 .

[0093] Although the present invention is disclosed as above, it is not limited thereto. Those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A medical flushing device, characterized in that: include: A tube mechanism and a balloon; wherein: The pipe mechanism includes a flushing pipe, a return pipe and a pressure-charging pipe; the return pipe is partially inserted into the flushing pipe, and the distal end of the return pipe and the distal end of the flushing pipe remain relatively stationary; a cavity is formed between the outer peripheral surface of the portion of the return pipe located in the flushing pipe and the inner peripheral surface of the flushing pipe; a flushing hole communicating with the cavity is provided on the distal side wall of the flushing pipe; The balloon is connected to the distal end of the inflation tube and communicated with the inflation tube.

2. The medical flushing device according to claim 1, characterized in that: The medical flushing device further comprises a coupling mechanism; the coupling mechanism is arranged on the flushing tube, and the coupling mechanism is connected to the pressure charging tube; The coupling mechanism selectively locks or unlocks the charging tube; when the coupling mechanism locks the charging tube, the coupling mechanism and the charging tube are prevented from making relative movement along the axial direction of the charging tube, so that the length of the portion of the charging tube located between the coupling mechanism and the balloon remains unchanged; when the coupling mechanism unlocks the charging tube, the coupling mechanism and the charging tube are allowed to make relative movement along the axial direction of the charging tube, so as to change the length of the portion of the charging tube located between the coupling structure and the balloon.

3. The medical flushing device according to claim 2, characterized in that: The joint mechanism comprises a frame and a movable support part, wherein the frame is connected to the flushing pipe; the movable support part is connected to the frame, and a first gap can be formed between the movable support part and the frame; The movable support portion is also capable of at least partially moving relative to the frame along a preset direction to change the width of the first gap; The width of the first gap refers to the size of the first gap in the preset direction; The pressure charging pipe is partially inserted into the first gap; When the width of the first gap is smaller than the natural outer diameter of the charging tube, the movable support part and the frame together clamp the charging tube to lock the charging tube; when the width of the first gap is larger than the natural outer diameter of the charging tube, the coupling mechanism releases the lock on the charging tube.

4. The medical flushing device according to claim 3, characterized in that: The frame is formed with a receiving groove; the movable support portion is arranged in the receiving groove and includes a movable stopper and an elastic element; the movable stopper is movably connected to the frame and can move along the preset direction; The elastic element is arranged between the movable stopper and the frame, and two opposite ends of the elastic element in the preset direction are respectively in contact with the movable stopper and the frame; The first gap is formed on a side of the movable stopper away from the elastic element.

5. The medical flushing device according to claim 4, characterized in that: The preset direction intersects or is out of plane with the radial direction of the flushing pipe at the junction of the flushing pipe and the frame; The joint mechanism further comprises a fixed support portion, which is disposed in the receiving groove and connected to the frame; the fixed support portion is located on a side of the elastic element away from the movable stopper; The pressure charging tube presses against the surface of the fixed support portion facing away from the movable stopper, and also presses against the movable stopper.

6. The medical flushing device according to claim 4 or 5, characterized in that: The frame comprises a guide rod, which is arranged in the receiving groove and extends along the preset direction; the movable stopper is sleeved on the guide rod, and the elastic element is arranged around a part of the outer circumference of the guide rod.

7. The medical flushing device according to claim 5, characterized in that: The movable support portion is at least partially located on a side of the fixed support portion close to the proximal end of the flushing tube, and the movable support portion is closer to the distal end of the charging tube than the fixed support portion; or, The movable support portion is at least partially located on a side of the fixed support portion close to the distal end of the flushing tube, and the fixed support portion is closer to the distal end of the charging tube than the movable support portion.

8. The medical flushing device according to claim 1, characterized in that: The distal end of the flushing tube is connected to the distal end of the return tube via an end wall; a flushing hole communicating with the cavity is formed on the end wall; and / or, The balloon is a ring-shaped structure with an inner hole; and / or, A through hole, a first connecting through hole and a second connecting through hole are provided on the proximal side wall of the flushing tube. The first connecting through hole and the second connecting through hole are coaxially arranged, and the axis of the first connecting through hole is inclined relative to the axis of the flushing tube; the through hole is located on the distal side of the first connecting through hole and the second connecting through hole; the proximal end of the charging tube is connected to the first connecting through hole; the tube mechanism also includes an air supply pipe, and the distal end of the air supply pipe is connected to the second connecting through hole; the proximal end of the reflux pipe passes through the through hole and extends to the outside of the flushing tube.

9. The medical flushing device according to claim 1, characterized in that: The balloon is detachably and sealingly connected to the inflation tube; the flushing tube includes a first flushing tube segment and a second flushing tube segment, and the second flushing tube segment is detachably and sealingly connected to the distal end of the first flushing tube segment; the reflux tube includes a first reflux tube segment and a second reflux tube segment, the first reflux tube segment is partially inserted into the first flushing tube segment, the second reflux tube segment is detachably connected to the distal end of the first reflux tube segment, and the second reflux tube segment is inserted into the second flushing tube segment.

10. The medical flushing device according to claim 9, characterized in that: The medical flushing device further comprises a rib, wherein the rib comprises a rib body and a support member, wherein the rib body extends along the axial direction of the second flushing pipe segment and connects the inner circumference of the second flushing pipe segment and the outer circumference of the second return pipe segment; The support member is configured to have elasticity, extends along the axial direction of the second flushing pipe section, and is buried in the rib body.

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