Irrigation and drainage catheter for Eustachian tube
By designing a multi-directional irrigation and drainage structure for the Eustachian tube irrigation and drainage catheter, the problem of circumferential irrigation of axial fluid in existing technologies has been solved, achieving efficient irrigation and drainage of the Eustachian tube and tympanic cavity.
Patent Information
- Application Number
- CN202422803717.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-11-18
AI Technical Summary
Existing eustachian tube irrigation and drainage catheters can only drain fluid along the axial direction, making it difficult to effectively irrigate the circumferential wall, resulting in low irrigation efficiency and quality.
A eustachian tube irrigation and drainage catheter was designed, which has an axial irrigation cavity and a circumferential drainage cavity. The guide head is provided with a radial irrigation port and an axial fluid outlet channel. The irrigation direction can be adjusted by rotating the guide head, and combined with negative pressure suction, the axial and circumferential walls can be simultaneously irrigated and drained.
It improves the efficiency and quality of irrigating the Eustachian tube and tympanic cavity, reduces irrigation dead zones, and enhances the efficiency and stability of irrigation and drainage.
Smart Images
Figure CN223668402U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical equipment technical field especially, relate to a eustachian tube flushing drainage catheter. BACKGROUND
[0002] The eustachian tube is the pipeline connecting the tympanic cavity and the nasopharyngeal opening, and the secretory otitis media is caused by the blockage of the eustachian tube by secretions, and is usually treated by using the eustachian tube flushing drainage catheter, which uses the flushing liquid to flush the secretions adhering to the wall surface of the eustachian tube and the tympanic cavity, and drains the mixture of the flushing liquid and the secretions, the liquid outlet direction of the existing eustachian tube flushing drainage catheter is single, and only the axial flushing of the eustachian tube flushing drainage catheter can be used for liquid outlet flushing, it is difficult to flush the circumferential wall surface, and the flushing dead angle is prone to occur, resulting in low flushing efficiency and quality, thereby affecting the flushing and drainage efficiency. SUMMARY
[0003] The utility model aims at at least one of the technical problems in the related art to some extent. To this end, the utility model provides a eustachian tube flushing drainage catheter, which can conveniently flush and drain the wall surface of the eustachian tube and the tympanic cavity from multiple directions to improve the flushing and drainage efficiency and quality.
[0004] According to the utility model embodiment, a kind of eustachian tube flushing drainage catheter is provided, including tube body and guide head, the tube body is opened with flushing cavity and drainage cavity along the axial direction, the flushing cavity penetrates the tube body, the drainage cavity is arranged around the flushing cavity, and the drainage cavity is used to drain and discharge the secretions in tympanic cavity and eustachian tube;The guide head is sleeved on one end of the tube body, the guide head is opened with liquid outlet passage along the axial direction, the liquid outlet passage penetrates the guide head, the side wall of the guide head is opened with flushing port along the radial direction of the guide head, the flushing port is communicated with the liquid outlet passage, the liquid outlet passage is communicated with the flushing cavity, the side wall of the tube body is opened with drainage port near the guide head, and the drainage port is communicated with the drainage cavity.
[0005] The utility model discloses an eustachian tube flushing drainage catheter, at least has following beneficial effect: when using, the one end of pipe body is equipped with the guide head is from nasopharyngeal cavity and is inserted into eustachian tube and tympanic cavity, makes the guide head to place in the eustachian tube and the position of tympanic cavity to be flushed, and the physiological saline of flushing cavity channel is transported to the liquid outlet channel with flushing liquid such as sodium chloride, and the liquid outlet end of liquid outlet channel sprays, and the wall surface in axial direction is flushed, simultaneously, the flushing liquid in liquid outlet channel sprays from the flushing port of guide head side wall, and the pipe body is rotated around the shaft, and the guide head is rotated, and the liquid outlet direction of flushing port can be adjusted, and the wall surface in circumferential direction is flushed, can reduce the flushing dead angle, to improve the flushing efficiency and quality, and at the same time of flushing, the mixed solution of flushing liquid and secretion is flowed into drainage cavity channel from the drainage port of pipe body side wall by negative pressure suction force, and is discharged from drainage cavity channel to outside, so that flushing and drainage can be carried out simultaneously, to improve the flushing drainage efficiency.
[0006] According to some embodiments of the utility model, the flushing port is opened with multiple, multiple flushing ports are evenly arranged along the circumference of the guide head.
[0007] According to some embodiments of the utility model, the drainage port is opened with multiple, multiple drainage ports are evenly arranged along the circumference of the pipe body.
[0008] According to some embodiments of the utility model, the drainage port is arranged as a long strip, and the drainage port extends along the axial direction of the pipe body.
[0009] According to some embodiments of the utility model, the end of the guide head away from the pipe body is provided with a hemispherical end face.
[0010] According to some embodiments of the utility model, the guide head is opened with a slot, the liquid outlet channel is communicated with the slot, one end of the pipe body can be inserted into the slot, so that the liquid outlet channel is communicated with the flushing cavity channel, and the pipe body and the guide head are in interference fit.
[0011] According to some embodiments of the utility model, the side wall of the slot is provided with a positioning block, the positioning block extends along the axial direction of the guide head to the end face of the guide head, the outer side wall of the pipe body is opened with a positioning slot, the positioning slot extends along the axial direction of the pipe body to the end face of the pipe body, and the positioning block can be clamped into the positioning slot to position the circumferential position of the guide head.
[0012] According to some embodiments of the utility model, the inner wall of the drainage cavity channel is connected with a cross-shaped reinforcing rib, the cross-shaped reinforcing rib extends along the axial direction of the pipe body, and part of the flushing cavity channel is opened at the central position of the cross-shaped reinforcing rib.
[0013] According to some embodiments of the utility model, the guide head is an X-ray developing part.
[0014] According to some embodiments of the present application, the outer sidewall of the tube body is provided with a scale line in the axial direction.
[0015] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be understood by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0016] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
[0017] Figure 1 is a cross-sectional view of the Eustachian tube flushing and drainage catheter of the present application embodiment;
[0018] Figure 2 is Figure 1 is a local enlarged view of A in the figure;
[0019] Figure 3 is Figure 1 is a M-M cross-sectional view of the figure;
[0020] Figure 4 is a local structure schematic view of the Eustachian tube flushing and drainage catheter of the present application embodiment;
[0021] Figure 5 is a rotating cross-sectional view of the Eustachian tube flushing and drainage catheter of the present application embodiment;
[0022] Figure 6 is a local structure schematic view of the tube body of the Eustachian tube flushing and drainage catheter of the present application embodiment;
[0023] Figure 7 is a structure schematic view of the guide head of the Eustachian tube flushing and drainage catheter of the present application embodiment.
[0024] BRIEF DESCRIPTION OF DRAWINGS
[0025] Tube body 100, flushing cavity 110, drainage cavity 120, drainage port 130, positioning groove 140, cross-shaped reinforcing rib 150, scale line 160, guide head 200, liquid outlet channel 210, flushing port 220, hemispherical end face 230, insertion slot 240, positioning block 241, connecting piece 300. DETAILED DESCRIPTION
[0026] The embodiments of the present application are described below in detail, examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.
[0027] In the description of the present application, it should be understood that, if the orientation description, such as up, down, front, back, left, right and other indications of the orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.
[0028] In the description of the present application, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than and the like are not included in the number, above, below, within and the like are included in the number. If the first, second is described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.
[0029] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting and the like should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical scheme.
[0030] It can be understood that, with reference to Figures 1 to 7 The present application relates to a kind of Eustachian tube flushing drainage catheter, including tube body 100 and guide head 200, tube body 100 is along axial and is set with flushing cavity 110 and drainage cavity 120, flushing cavity 110 penetrates tube body 100, drainage cavity 120 is set around flushing cavity 110, drainage cavity 120 is used to drain the secretion in tympanic cavity and Eustachian tube;Guide head 200 is sleeved in one end of tube body 100, guide head 200 is along axial and is set with liquid outlet passage 210, liquid outlet passage 210 penetrates guide head 200, the side wall of guide head 200 is along the radial direction of guide head 200 and is set with flushing port 220, flushing port 220 is connected with liquid outlet passage 210, liquid outlet passage 210 is connected with flushing cavity 110, the side wall of one end of tube body 100 close to guide head 200 is set with drainage port 130, drainage port 130 is connected with drainage cavity 120.
[0031] In use, the tube body 100 is sleeved with the guide head 200 at one end, and the guide head 200 is placed in the eustachian tube and the tympanic cavity to be flushed. The physiological saline and other flushing liquid is delivered to the liquid outlet channel 210 through the flushing cavity 110, and the flushing liquid is sprayed from the liquid outlet end of the liquid outlet channel 210 to flush the wall surface in the axial direction. At the same time, the flushing liquid in the liquid outlet channel 210 is sprayed from the flushing port 220 of the side wall of the guide head 200. By rotating the tube body 100 around the shaft and driving the guide head 200 to rotate, the liquid outlet direction of the flushing port 220 can be adjusted to flush the wall surface in the circumferential direction. The flushing dead angle is reduced to improve the flushing efficiency and quality. At the same time of flushing, the mixed liquid of the flushing liquid and the secretion is flowed into the drainage cavity 120 from the drainage port 130 of the side wall of the tube body 100 by the negative pressure suction force, and is discharged from the drainage cavity 120 to the outside of the body, so that the flushing and drainage can be simultaneously performed to improve the flushing and drainage efficiency.
[0032] In addition, since the liquid outlet channel 210 penetrates the guide head 200 in the axial direction, the flushing port 220 is arranged in the radial direction of the guide head 200, and the drainage port 130 is arranged on the side wall of the end of the tube body 100 close to the guide head 200. The flushing liquid sprayed from the flushing port 220 and the liquid outlet channel 210 can be timely flowed back to the drainage cavity 120 from the drainage port 130 together with the secretion after being flushed by the wall surface to form a circulation, thereby improving the flushing and drainage quality.
[0033] It should be noted that the end of the drainage cavity 120 close to the guide head 200 is closed, and the end of the flushing cavity 110 close to the guide head 200 is opened, so that the flushing cavity 110 and the drainage cavity 120 form independent cavities to avoid the liquid in the flushing cavity 110 and the drainage cavity 120 from mixing with each other.
[0034] In use, the end of the drainage cavity 120 away from the drainage port 130 is connected to a negative pressure source such as a negative pressure ball or a negative pressure pump to form a negative pressure suction force in the drainage cavity 120, so as to suck out the accumulated liquid in the eustachian tube and the tympanic cavity. The end of the flushing cavity 110 away from the guide head 200 is connected to a syringe to inject the physiological saline and other flushing liquid into the flushing cavity 110.
[0035] The connecting piece 300 can be arranged at the end of the tube body 100 away from the guide head 200. The connecting piece 300 is provided with two connectors arranged in a V shape between the two connectors. The two connectors are respectively connected to the flushing cavity 110 and the drainage cavity 120. The two connectors can be conveniently connected to the negative pressure ball and the syringe.
[0036] It can be understood that, with reference to Figure 4 and Figure 7The plurality of flush ports 220 are arranged along the circumference of the guide head 200. The flush liquid is sprayed through the plurality of flush ports 220 arranged along the circumference of the guide head 200 to flush the circumferential wall surface, which can improve the flushing efficiency and reduce the angle required for the rotation of the tube body 100, thereby improving the convenience of flushing.
[0037] It can be understood that, referring to Figure 1 and Figure 6 , the plurality of drainage ports 130 are arranged along the circumference of the tube body 100. The secretions and effusions on the circumferential wall surface are simultaneously sucked through the plurality of drainage ports 130 arranged along the circumference of the tube body 100, which can improve the drainage efficiency and reduce the possibility of the drainage lumen 120 being blocked due to the adhesion of the lumen wall to the drainage port 130, thereby improving the stability of drainage.
[0038] It can be understood that, referring to Figure 4 and Figure 6 , the drainage port 130 is arranged in a strip shape and extends along the axis of the tube body 100. Since the drainage port 130 is arranged in a strip shape and extends along the axis of the tube body 100, the secretions and effusions on the axial wall surface can be sucked, and the drainage area of the drainage port 130 is increased to improve the drainage efficiency.
[0039] It can be understood that, referring to Figure 4 and Figure 5 , the guide head 200 is provided with a hemispherical end face 230 at the end away from the tube body 100. When the tube body 100 is placed in the body, the hemispherical end face 230 of the guide head 200 abuts against the wall surface of the eustachian tube, which can reduce the frictional resistance between the guide head 200 and the wall surface, reduce the impact and wear of the guide head 200 on the wall surface of the eustachian tube, and guide the smooth sliding of the guide head 200 into the corresponding position in the eustachian tube and the tympanic cavity, thereby improving the convenience and smoothness of tube placement.
[0040] It can be understood that, referring to Figure 2 , Figure 5 , Figure 6 and Figure 7 , the guide head 200 is provided with a slot 240, the liquid outlet channel 210 communicates with the slot 240, one end of the tube body 100 can be inserted into the slot 240 to make the liquid outlet channel 210 communicate with the flushing lumen 110, and the tube body 100 and the guide head 200 are in interference fit. The tube body 100 is inserted into the slot 240 in the interference fit mode, which can complete the assembly between the guide head 200 and the tube body 100, facilitate the disassembly and replacement of the guide head 200, and reduce the overall replacement cost of the eustachian tube flushing and drainage catheter.
[0041] Specifically, referring to Figure 6 andFigure 7 The side wall of the insertion slot 240 is provided with a positioning block 241 extending along the axial direction of the guide head 200 to the end surface of the guide head 200, and the outer side wall of the pipe body 100 is provided with a positioning groove 140 extending along the axial direction of the pipe body 100 to the end surface of the pipe body 100, and the positioning block 241 can be clamped into the positioning groove 140 to position the circumferential position of the guide head 200. Since the side wall of the insertion slot 240 is provided with the positioning block 241 extending along the axial direction of the guide head 200 to the end surface of the guide head 200, and the outer side wall of the pipe body 100 is provided with the positioning groove 140 extending along the axial direction of the pipe body 100 to the end surface of the pipe body 100, when one end of the pipe body 100 is inserted into the insertion slot 240, the positioning block 241 can be clamped into the positioning groove 140 to position the circumferential position of the guide head 200, which can reduce the possibility of loosening due to relative rotation between the guide head 200 and the pipe body 100, thereby improving the stability of the connection.
[0042] It can be understood that, referring to Figure 1 , Figure 3 and Figure 4 , the inner wall of the drainage channel 120 is connected with a cross-shaped reinforcing rib 150 extending along the axial direction of the pipe body 100, and part of the flushing channel 110 is provided at the central position of the cross-shaped reinforcing rib 150. By connecting the inner wall of the drainage channel 120 with the cross-shaped reinforcing rib 150, the deformation resistance of the cavity wall of the drainage channel 120 can be improved, so as to reduce the possibility of the drainage channel 120 being blocked due to the folding deformation of the cavity wall, thereby improving the stability of the drainage. Similarly, by providing part of the flushing channel 110 at the central position of the cross-shaped reinforcing rib 150, the deformation resistance of the cavity wall of the flushing channel 110 can be improved, so as to reduce the possibility of the flushing channel 110 being blocked due to the folding deformation of the cavity wall, thereby improving the stability of the flushing.
[0043] It can be understood that, referring to Figure 7 , the guide head 200 is an X-ray developing part. Since the guide head 200 is an X-ray developing part, it can produce a clear image under X-ray, so that the operator can judge the insertion position of the guide head 200 through X-ray, thereby improving the accuracy of the insertion position of the guide head 200 and reducing the possibility of injuring the eardrum due to excessive insertion.
[0044] It should be noted that the guide head 200 can be made of medical polymer materials such as barium sulfate, basic bismuth carbonate, and silicate metal compounds that can develop under X-ray.
[0045] It can be understood that, referring to Figure 6The outer side wall of the pipe body 100 is provided with a scale line 160 in the axial direction. The scale line 160 provided on the outer side wall of the pipe body 100 in the axial direction can intuitively determine the insertion depth of the catheter, so as to facilitate the determination of the placement position of the guide head 200, and can reduce the possibility of eardrum injury due to excessive insertion.
[0046] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.
Claims
1. A Eustachian tube flushing and drainage catheter, characterized in that, The utility model relates to a kind of ear-nose-throat flushing and drainage device, including: Pipe body, flushing cavity and drainage cavity are opened in axial direction, flushing cavity penetrates pipe body, drainage cavity is arranged around flushing cavity, and drainage cavity is used to drain secretion in tympanic cavity and eustachian tube; Guide head, sleeve is installed in one end of pipe body, outlet channel is opened in axial direction, outlet channel penetrates guide head, flushing port is opened in the radial direction of guide head in the side wall of guide head, flushing port is communicated with outlet channel, outlet channel is communicated with flushing cavity, and the side wall of one end of pipe body is opened in drainage port, and drainage port is communicated with drainage cavity.
2. The Eustachian tube washout drainage catheter of claim 1, wherein, The flushing port is opened in multiple, and multiple flushing ports are arranged uniformly along the circumferential direction of guide head.
3. The Eustachian tube washout drainage catheter of claim 1, wherein, The drainage port is opened in multiple, and multiple drainage ports are arranged uniformly along the circumferential direction of pipe body.
4. The Eustachian tube washout drainage catheter of claim 1, wherein, The drainage port is arranged as long strip, and the drainage port is arranged along the axial extension of pipe body.
5. The Eustachian tube washout drainage catheter of claim 1, wherein, The end of guide head away from pipe body is provided with hemispherical end face.
6. The Eustachian tube washout drainage catheter of claim 1, wherein, The guide head is opened in insertion slot, the outlet channel is communicated with insertion slot, one end of pipe body can be inserted into insertion slot, so that the outlet channel is communicated with flushing cavity, and pipe body and guide head are interference fit.
7. The Eustachian tube washout drainage catheter of claim 6, wherein, The side wall of insertion slot is protruded and provided with positioning block, the positioning block extends to the end face of guide head along the axial direction of guide head, the outer side wall of pipe body is opened in positioning slot, the positioning slot extends to the end face of pipe body along the axial direction of pipe body, the positioning block can be clamped into positioning slot, to position the circumferential position of guide head.
8. The Eustachian tube washout drainage catheter of claim 1, wherein, The inner wall of drainage cavity is connected with cross-shaped reinforcing rib, the cross-shaped reinforcing rib extends along the axial direction of pipe body, and part of flushing cavity is opened in the center position of cross-shaped reinforcing rib.
9. The Eustachian tube washout drainage catheter of claim 1, wherein, The guide head is X-ray developing article.
10. The Eustachian tube washout drainage catheter of claim 1, wherein, The outer side wall of pipe body is provided with scale line in axial direction.