Urethral catheter device easy to replace

Abstract

The utility model discloses a catheter device with a catheter easy to replace. The catheter device comprises a double-cavity catheter body and a catheter replacing guide wire. A first channel and a second channel are arranged inside the double-cavity tube body, a first tube head communicated with the first channel and a second tube head communicated with the second channel are formed at the upper end of the double-cavity tube body, a urination hole communicated to the first channel is formed in the outer wall close to the lower end of the double-cavity tube body, and a guide wire passing hole is formed in the bottom of the double-cavity tube body. The lower part of the outer wall is provided with an air guide hole for communicating the second channel with the inflating balloon; hemispherical soft heads are arranged at the upper end and the lower end of the tube replacement guide wire, and the outer diameter of the soft heads is equal to the outer diameter of the tube replacement guide wire. The double-cavity catheter has the advantages that under the guidance of the catheter replacement guide wire, the lower end of the double-cavity catheter body can be driven to be smoothly pushed into the bladder of a patient through the urethral orifice of the patient, catheter indwelling blocking caused by urethral bending and the like in the catheter indwelling process is not likely to happen, and in other words, the catheter indwelling speed and efficiency of the double-cavity catheter body can be greatly improved by arranging the catheter replacement guide wire.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical nursing supplies technical field especially, relate to an easy -to -replace tube catheterization tube device. BACKGROUND

[0002] Catheter is a pipeline made of natural rubber, silicone rubber or polyvinyl chloride (PVC), which can be inserted into the bladder through the urethra to drain urine out. The catheter is generally double-lumen structure, and a gas bag is arranged at a certain distance from the outer wall of the front end of the catheter after being inserted into the bladder of a patient. The gas bag is inflated to fix the front end of the catheter in the bladder and prevent it from being pulled out. The outer wall of the front end of the catheter is provided with a urine discharge hole.

[0003] For the catheter with the above structure, it needs to be replaced after a certain period of use or blockage. The traditional replacement method is to deflate the gas bag and slowly pull it out of the patient's urethra. Then, when replacing the new catheter, the medical staff holds it and slowly inserts it into the patient's urethra until the front end of the gas bag enters the patient's bladder. Then, the gas bag is inflated to a certain extent to fix the front end of the catheter in the patient's bladder to facilitate external urine drainage.

[0004] For the above replacement method, especially for inserting the catheter into the patient's bladder, the medical staff directly pushes it in, which not only causes pain and discomfort to the patient, but also makes the operation time-consuming and laborious. At the same time, when the catheter is inserted into the patient's bladder to a certain depth, the outer end is easily shaken to cause friction to the patient's urethral orifice, resulting in ulceration and inflammation of the patient's urethral orifice. Moreover, there is no reference part for the insertion depth, so the controllability of the insertion depth is not good.

[0005] To solve the above problems, the present patent inventors have combined with clinical experience, thought about the problems encountered in clinical work, read a large number of scientific research data and literature, and searched through retrieval to gradually conceive and design the present application. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at solving one of the technical problems in the related art to some extent. Therefore, the purpose of the utility model is to provide an easy-to-replace tube catheterization tube device.

[0007] To achieve one of the above purposes, the easy-to-replace tube catheterization tube device according to the utility model embodiment comprises a double-lumen tube body and a tube replacement guide wire for assisting replacement of the double-lumen tube body.

[0008] The double-cavity tube body is internally provided with a first channel and a second channel in parallel; a first tube head communicating with the first channel and a second tube head communicating with the second channel are formed at the upper end of the double-cavity tube body; at least one urination hole communicating with the first channel is formed on the outer wall of the double-cavity tube body close to the lower end thereof, and a guide wire through hole suitable for the tube-changing guide wire to pass through is formed on the bottom of the double-cavity tube body; a gas inflation balloon is arranged on the outer wall of the double-cavity tube body and surrounds the urination hole, and a gas guide hole is formed on the lower part of the outer wall of the double-cavity tube body to make the second channel communicate with the gas inflation balloon.

[0009] The length of the tube-changing guide wire is at least twice the length of the double-cavity tube body, and soft heads connected with the tube-changing guide wire are arranged at the upper and lower ends of the tube-changing guide wire, and the soft heads are shaped as hemispherical structures with an outer diameter equal to the outer diameter of the tube-changing guide wire.

[0010] In addition, the easy-to-change tube urinary catheter device according to the above-mentioned embodiments of the utility model can further have the following additional technical features.

[0011] According to one embodiment of the utility model, a circular annular inflation ring is further included.

[0012] The circular annular inflation ring is sleeved on the outer wall of the double-cavity tube body and can slide up and down, and a gas inlet and outlet control valve is arranged on the surface of the circular annular inflation ring.

[0013] According to one embodiment of the utility model, female safety depth marking rings and male safety depth marking rings are arranged on the outer wall of the double-cavity tube body.

[0014] The distance between the female safety depth marking ring and the lower end of the double-cavity tube body is L1, the distance between the male safety depth marking ring and the lower end of the double-cavity tube body is L2, L1 is 5.0cm-8.0cm, and L2 is 19.0cm-22.0cm.

[0015] According to one embodiment of the utility model, a circular annular groove is cut on the outer wall of the lower end of the double-cavity tube body close to the gas inflation balloon, and a developing ring that can be developed under X-ray perspective is embedded in the annular groove.

[0016] According to one embodiment of the utility model, the guide wire through hole is shaped as a horn-shaped structure with a gradually decreasing inner diameter from bottom to top, so that the longitudinal section of the inner wall is formed as an eight-character shape.

[0017] According to one embodiment of the utility model, a first soft rubber strip is connected with a first sealing plug that seals the first tube head, and a second soft rubber strip is connected with a second sealing plug that seals the second tube head.

[0018] According to one embodiment of the utility model, the lower end of the double-lumen tube body protrudes downward to form a smooth lower protrusion, and an indication scale for indicating the insertion depth is arranged on the outer wall of the double-lumen tube body from bottom to top.

[0019] According to one embodiment of the utility model, the tube-changing guide wire comprises an inner core and a polytetrafluoroethylene coating layer coated on the surface of the inner core.

[0020] According to one embodiment of the utility model, the length of the tube-changing guide wire is at least 90.0 cm, the outer diameter is 0.89 mm, and the model is THSF-35-90-AUS1.

[0021] The utility model has the advantages of:

[0022] Firstly, the easy-to-change tube urinary catheter device provided by the application can smoothly push the lower end of the double-lumen tube body into the patient's bladder under the guidance of the tube-changing guide wire, so that the catheterization is not easily blocked due to the curvature of the urethra during the catheterization process, that is, the tube-changing guide wire can greatly improve the catheterization speed and efficiency of the double-lumen tube body, and the patient's urethral wall is not easily touched to cause pain and discomfort.

[0023] Secondly, since the length of the tube-changing guide wire is at least twice the length of the double-lumen tube body, the use length is sufficient, the application is reliable to use, and since the soft head is integrally connected to the upper and lower ends of the tube-changing guide wire, the upper and lower ends can be used as insertion ends, so that the application has strong adaptability and strong flexibility, and when the soft head contacts the patient's urethral orifice, urethral wall, etc., the tube-changing guide wire is not easily touched to cause pain and discomfort, so that the application has good comfort in use.

[0024] Thirdly, in the specific implementation, the annular inflatable ring is slid upward to the upper part of the double-lumen tube body in advance, and then the annular inflatable ring is slid downward to make it close to the patient's urethral orifice after the catheterization of the double-lumen tube body, so that the part of the double-lumen tube body exposed to the patient's urethral orifice is not easily shaken to cause friction with the patient's urethral orifice and cause inflammation such as ulceration of the patient's urethral orifice, that is, the annular inflatable ring can protect the patient's urethral orifice, and can assist in positioning the insertion depth of the double-lumen tube body, so as to avoid the double-lumen tube body from being pulled out and displaced inward as much as possible, and the insertion depth of the double-lumen tube body is controllable.

[0025] Fourthly, when the female safety depth identification ring and the male safety depth identification ring are arranged in the application, a certain reference is given, so that the medical staff can have a reference for the catheterization depth when performing catheterization on the patient, so that the catheterization depth is not too deep or too shallow, and the use reliability of the application is better.

[0026] Fifthly, in the process that the lower end of the double-lumen tube body is inserted into the bladder of the patient, the position of the developing ring can be viewed in real time under X-ray perspective development, so that whether the part including the inflatable balloon of the lower end of the double-lumen tube body is inserted into the bladder of the patient can be determined according to the position of the developing ring, so that the application is more reliable to use.

[0027] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the structure shown in the drawings.

[0029] Figure 1 is a schematic diagram of the overall structure of the easy-to-change tube catheterization device of the present application;

[0030] Figure 2 is an exploded view of the easy-to-change tube catheterization device of the present application;

[0031] Figure 3 is a longitudinal partial cross-sectional view of the easy-to-change tube catheterization device of the present application;

[0032] Figure 4 is an exploded view of Figure 3 ;

[0033] Figure 5 is an enlarged view of E in Figure 4 ;

[0034] Reference signs:

[0035] Easy-to-change tube catheterization device 1000;

[0036] Double-lumen tube body 10;

[0037] First channel 101;

[0038] Second channel 102;

[0039] First tube head 103;

[0040] Second tube head 104;

[0041] Drainage hole 105;

[0042] Wire through hole 106;

[0043] Inflatable balloon 107;

[0044] Air guide hole 108;

[0045] Female safety depth identification ring 109;

[0046] Male safety depth identification ring 110;

[0047] Annular groove 111;

[0048] Developing ring 112;

[0049] First soft rubber strip 113;

[0050] First sealing plug 114;

[0051] Second soft rubber strip 115;

[0052] Second sealing plug 116;

[0053] Smooth lower convex part 117;

[0054] Tube changing guide wire 20;

[0055] Soft head 201;

[0056] Annular inflatable ring 30;

[0057] Gas inlet and outlet control valve 301;

[0058] The implementation, functional features and advantages of the utility model will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0059] The embodiments of the utility model will be described in detail below, and the examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0060] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like is based on the orientation or positional relationship shown in the drawings of the specification, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0061] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0062] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0063] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical direction of the first feature above and oblique above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the vertical direction of the first feature below and oblique below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0064] The easy tube catheterization catheter device 100 of the utility model embodiment is described in detail below with reference to the drawings.

[0065] Referring to Figures 1 to 5 As shown in the drawings, according to the easy tube catheterization catheter device 100 provided by the utility model embodiment, it comprises a double-lumen tube body 10 and a tube replacement guide wire 20 for assisting in replacing the double-lumen tube body 10;

[0066] The double-cavity tube body 10 is internally provided with a first channel 101 and a second channel 102 in parallel; the upper end of the double-cavity tube body 10 is formed with a first tube head 103 communicating with the first channel 101 and a second tube head 104 communicating with the second channel 102; the outer wall of the double-cavity tube body 10 is provided with at least one urine discharge hole 105 communicating with the first channel 101 near the lower end thereof, and a guide wire through hole 106 is formed in the bottom of the double-cavity tube body 10 for the guide wire 20 to pass through; a balloon 107 is arranged around the urine discharge hole 105 near the upper part of the urine discharge hole 105 on the outer wall of the double-cavity tube body 10; a gas guide hole 108 is formed in the lower part of the outer wall of the double-cavity tube body 10 to communicate the second channel 102 with the balloon 107;

[0067] The length of the guide wire 20 is at least twice the length of the double-cavity tube body 10, and soft heads 201 are arranged at both ends of the guide wire 20.

[0068] Based on the above, it can be clearly seen that the present application is mainly used as an easy-to-change tube urinary catheter device 100 in specific implementation.

[0069] Specifically, when the double-cavity tube body 10 needs to be inserted into the patient's bladder with the lower end thereof entering the patient's urethral orifice, the lower end of the guide wire 20 can be pushed into the patient's bladder from the patient's urethral orifice in advance, then the lower end of the double-cavity tube body 10 is sleeved onto the guide wire 20 outside the guide wire 20 and slides down along the guide wire 20, and under the guidance of the guide wire 20, the lower end of the double-cavity tube body 10 can be smoothly pushed into the patient's bladder. When the balloon 107 also enters the patient's bladder, the guide wire 20 is pulled out, and an inflation member is connected to the second tube head 104 to inflate the balloon 107 to a certain extent, so that the balloon 107 is clamped in the patient's bladder and is not easy to come out. At this time, the insertion of the double-cavity tube body 10 is completed.

[0070] The use of the present application will have the following technical effects:

[0071] On the one hand, under the guidance of the guide wire 20, the lower end of the double-cavity tube body 10 can be smoothly pushed into the patient's bladder, so that the insertion is not easily blocked due to the curvature of the urethra during the insertion process. That is, by arranging the guide wire 20, the insertion speed and efficiency of the double-cavity tube body 10 can be greatly improved, and the patient is not easily caused to feel pain due to the hard insertion causing the urethral wall to be pressed.

[0072] On the other hand, since the length of the tube-changing guide wire 20 is at least twice the length of the double-lumen tube body 10, even if the length of use is sufficient, the application can be used reliably, and since the upper and lower ends of the tube-changing guide wire 20 are provided with soft heads 201 connected thereto to form an integral whole, the upper and lower ends can both serve as insertion ends, so that the adaptability and flexibility of use are strong, and when the soft heads 201 contact the patient's urethral orifice, the urethral wall, or the like, the tube-changing guide wire 20 is not easy to top the patient's urethral orifice and the urethral wall, or the like, to cause the patient to feel pain and other discomfort, so that the comfort of use is good.

[0073] Furthermore, through the above-mentioned optimization design, the whole constituted by the application is strong in practicality and good in use effect.

[0074] Further, in specific implementation, referring to Figures 1-4 As shown in the figure, according to an embodiment of the present application, further comprising a circular annular inflatable ring 30;

[0075] Among them, the circular annular inflatable ring 30 can be slidably sleeved on the outer wall of the double-lumen tube body 10 with sliding damping, and the surface of the circular annular inflatable ring 30 is provided with a gas inlet and outlet control valve 301.

[0076] Therefore, the circular annular inflatable ring 30 is slid upward to the upper part of the double-lumen tube body 10 in advance, and then the circular annular inflatable ring 30 is slid downward after the double-lumen tube body 10 is placed on the wall, so that it is close to the patient's urethral orifice. In this way, under the action of fixation and restraint, the part of the double-lumen tube body 10 exposed to the patient's urethral orifice is not easy to swing and cause friction to the patient's urethral orifice, so as to cause inflammation such as ulceration of the patient's urethral orifice. That is, by providing the circular annular inflatable ring 30, the protection effect of the patient's urethral orifice is good, and the double-lumen tube body 10 can be used to assist in positioning the insertion depth, so as to avoid the double-lumen tube body 10 from being pulled out and displaced inward as much as possible, so that the insertion depth of the double-lumen tube body 10 is good in controllability.

[0077] Further, in specific implementation, referring to Figures 1-4 As shown in the figure, according to an embodiment of the present application, the outer wall of the double-lumen tube body 10 is provided with a female safety depth marking ring 109 and a male safety depth marking ring 110;

[0078] Among them, the distance between the female safety depth marking ring 109 and the lower end of the double-lumen tube body 10 is L1; the distance between the male safety depth marking ring 110 and the lower end of the double-lumen tube body 10 is L2; the L1 = 5.0cm-8.0cm; the L2 = 19.0cm-22.0cm.

[0079] Preferably, in this technical solution, L1 is set to four specifications of 5.0cm, 6.0cm, 7.0cm and 8.0cm, and correspondingly, L2 is set to four specifications of 19.0cm, 20.0cm, 21.0cm and 22.0cm, so that the specifications of this application can be flexibly selected and used in combination with the actual patient's age and the depth of the urethra.

[0080] When the female safety depth marking ring 109 and the male safety depth marking ring 110 are provided, a certain reference can be given so that medical staff can refer to the insertion depth when inserting the catheter into the patient, making it less likely that the insertion depth is too deep or too shallow, thus making the reliability of the application better.

[0081] Furthermore, in this technical solution, according to one embodiment of the present utility model, the lower end of the outer wall of the dual-lumen tube 10 is cut with an annular groove 111 near the upper part of the inflatable balloon 107, and a developing ring 112 that can be developed under X-ray fluoroscopy is embedded in the annular groove 111.

[0082] Therefore, during the process of inserting the lower end of the double-lumen tube 10 into the patient's bladder, the position of the imaging ring 112 can be viewed in real time under X-ray fluoroscopy, so as to determine whether the lower end of the double-lumen tube 10, including the inflatable balloon 107, has been inserted into the patient's bladder based on the position of the imaging ring 112, making the use of this application more reliable.

[0083] Furthermore, in specific implementation, it is necessary to refer to... Figure 3 , Figure 4 and Figure 5 As shown, according to one embodiment of the present invention, the guide wire through hole 106 is formed into a trumpet-shaped structure, with its inner diameter gradually decreasing from bottom to top, so that its inner wall longitudinal section is formed into a figure-eight shape.

[0084] Therefore, when the lower end of the double-lumen tube 10 is sleeved from the upper end of the tube-changing guide wire 20 to the outside of the tube-changing guide wire 20, and the double-lumen tube 10 is slid downward along the tube-changing guide wire 20, the inner wall of the guide wire through hole 106 with the funnel-shaped structure can play a good guiding role, so that the lower end of the double-lumen tube 10 can be sleeved from the upper end of the tube-changing guide wire 20 to the outside of the tube-changing guide wire 20 more smoothly, making the use of this application faster and more convenient.

[0085] Furthermore, in specific implementation, in accordance with... Figures 1-4As shown, according to one embodiment of the present application, the first pipe head 103 is connected with a first sealing plug 114 sealing the first pipe head 103 by a first soft rubber strip 113; the second pipe head 104 is connected with a second sealing plug 116 sealing the second pipe head 104 by a second soft rubber strip 115.

[0086] Therefore, when not using the present application, the first sealing plug 114 can be inserted into the first pipe head 103 to seal the first pipe head 103, and the second sealing plug 116 can be inserted into the second pipe head 104 to seal the second pipe head 104.

[0087] Again, in the present technical solution, the first sealing plug 114 is connected with the first pipe head 103 by the first soft rubber strip 113, and the second sealing plug 116 is connected with the second pipe head 104 by the second soft rubber strip 115. Figure 4 and Figure 5 As shown, according to one embodiment of the present application, the lower end of the double-lumen tube body 10 protrudes downward to form a smooth lower convex portion 117, and the outer wall of the double-lumen tube body 10 is provided with an indication scale for indicating the insertion depth from bottom to top, and the bottom of the smooth lower convex portion 117 is provided with the guide wire through hole 106.

[0088] Therefore, during the process of inserting the lower end of the double-lumen tube body 10 into the patient's bladder through the patient's urethral orifice, the smooth lower convex portion 117 is not easy to damage the patient's urethral orifice and the mucosa of the urethral wall, so that the application has better comfort.

[0089] In addition, in the specific implementation, according to one embodiment of the present application, the tube-changing guide wire 20 comprises an inner core and a polytetrafluoroethylene coating layer coated on the surface of the inner core.

[0090] The inner core is preferably made of 304 stainless steel and sterilized by ethylene oxide, and the polytetrafluoroethylene coating layer is mainly a high molecular compound formed by polymerization of tetrafluoroethylene, which has excellent chemical stability, corrosion resistance, sealing property, high lubricity, non-stickiness and good aging resistance.

[0091] Therefore, after isolation and protection, the tube-changing guide wire 20 of the present application has good safety.

[0092] It should be noted that, in the specific implementation, according to one embodiment of the present application, the length of the tube-changing guide wire 20 is at least 90.0 cm, the outer diameter is 0.89 mm, and the model is THSF-35-90-AUS1.

[0093] Other embodiments and the like are not illustrated here.

[0094] In summary, the easy tube replacement catheter device 100 provided by the present application can drive the lower end of the double-lumen tube body 10 to be smoothly pushed into the patient's bladder under the guidance of the tube replacement guide wire 20, so that the catheterization is not easily blocked due to the curvature of the urethra during the catheterization process. In other words, by providing the tube replacement guide wire 20, the catheterization speed and efficiency of the double-lumen tube body 10 can be greatly improved, and the patient is not easily caused to have a painful feeling due to the hard catheterization causing the urethral wall to be touched.

[0095] Moreover, since the length of the tube replacement guide wire 20 is at least twice the length of the double-lumen tube body 10, the use length is sufficient, so that the present application is reliable to use, and since the upper and lower ends of the tube replacement guide wire 20 are provided with soft heads 201 connected therewith to form an integral whole, the upper and lower ends can be used as insertion ends, so that the adaptability and flexibility of use are strong. When the soft head 201 contacts the patient's urethral orifice, the urethral wall, or the like, the tube replacement guide wire 20 is not easily caused to touch the patient's urethral orifice and the urethral wall, or the like, to cause the patient to have a painful feeling or the like, so that the present application has good comfort in use.

[0096] In addition, the circular annular inflatable ring 30 is pre-slid upward to the upper part outside the double-lumen tube body 10, and after the double-lumen tube body 10 is catheterized, the circular annular inflatable ring 30 is slid downward to be close to the patient's urethral orifice. In this way, under the fixing and restraining action, the part of the double-lumen tube body 10 exposed outside the patient's urethral orifice is not easily swung to cause friction to the patient's urethral orifice to cause ulceration or inflammation of the patient's urethral orifice. In other words, by providing the circular annular inflatable ring 30, the patient's urethral orifice is well protected, and the double-lumen tube body 10 can be used to assist in positioning the insertion depth, so as to avoid the double-lumen tube body 10 from being outwardly detached and inwardly displaced as much as possible, so that the insertion depth of the double-lumen tube body 10 is well controllable.

[0097] Furthermore, by providing the female safety depth marking ring 109 and the male safety depth marking ring 110, a certain reference is provided, so that the medical staff can have a reference for the catheterization depth when catheterizing the patient with the present application, so that the catheterization depth is not easily too deep or too shallow, so that the present application has better reliability in use.

[0098] Again, during the process of inserting the lower end of the double-lumen tube body 10 into the patient's bladder, the position of the developing ring 112 can also be viewed in real time under X-ray fluoroscopy, so as to determine whether the part of the double-lumen tube body 10 including the inflatable balloon 107 is inserted into the patient's bladder according to the position of the developing ring 112, so that the present application is more reliable to use.

[0099] Further, the easy-to-replace tube catheter device 100 provided by the application is extremely practical and has excellent use effect, so that the application will certainly have good market promotion value, and the application will certainly be very popular and effectively popularized.

[0100] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0101] The above only describes the preferred embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A replaceable tube catheter device, characterized in that The double-lumen tube body and a tube replacement guide wire for assisting replacement of the double-lumen tube body; The double-lumen tube body is internally provided with a first channel and a second channel in parallel; the upper end of the double-lumen tube body is formed with a first tube head communicating with the first channel and a second tube head communicating with the second channel; the outer wall of the double-lumen tube body is provided with at least one urine discharge hole near the lower end thereof and communicating with the first channel, and the bottom of the double-lumen tube body is provided with a guide wire through hole suitable for the tube replacement guide wire to pass through; the outer wall of the double-lumen tube body is provided with an inflatable balloon around the upper part of the urine discharge hole and near the urine discharge hole; and the lower part of the outer wall of the double-lumen tube body is provided with a gas guide hole for the second channel to communicate with the inflatable balloon. The length of the tube replacement guide wire is at least twice the length of the double-lumen tube body, and the upper and lower ends of the tube replacement guide wire are provided with soft heads connected therewith to form an integral whole; the soft heads are shaped as hemispherical structures with an outer diameter equal to the outer diameter of the tube replacement guide wire.

2. The disposable male catheter urinary catheter device according to claim 1, wherein, Further comprising a circular annular inflatable ring; The circular annular inflatable ring is slidably sleeved on the outside of the double-lumen tube body, and the surface of the circular annular inflatable ring is provided with a gas inlet and outlet control valve.

3. The disposable male catheter urinary catheter device of claim 1, wherein, The outer wall of the double-lumen tube body is provided with a female safety depth identification ring and a male safety depth identification ring; The distance between the female safety depth identification ring and the lower end of the double-lumen tube body is L1; the distance between the male safety depth identification ring and the lower end of the double-lumen tube body is L2; L1=5.0cm-8.0cm; and L2=19.0cm-22.0cm.

4. The disposable male catheter urinary catheter device of claim 1, wherein, The outer wall of the lower end of the double-lumen tube body is cut with a circular annular groove near the upper part of the inflatable balloon, and the annular groove is embedded with a developing ring which can be developed under X-ray perspective.

5. The disposable male catheter urinary catheter device of claim 1, wherein, The guide wire through hole is shaped as a horn structure with a gradually decreasing inner diameter from bottom to top, so that the longitudinal section of the inner wall is formed as an eight-character shape.

6. The disposable male catheter urinary catheter device of claim 1, wherein, The outer wall of the first tube head is connected with a first sealing plug sealingly covering the first tube head through a first soft rubber strip; and the outer wall of the second tube head is connected with a second sealing plug sealingly covering the second tube head through a second soft rubber strip.

7. The disposable male catheter urinary catheter device of claim 1, wherein, The lower end of the double-lumen tube body protrudes downward to form a smooth lower convex part, and the outer wall of the double-lumen tube body is provided with an insertion depth indication scale from bottom to top; and the bottom of the smooth lower convex part is provided with the guide wire through hole.

8. The disposable male catheter urinary catheter device of claim 1, wherein, The tube replacement guide wire comprises an inner core and a polytetrafluoroethylene coating layer coated on the surface of the inner core.

9. The disposable tube catheter device of claim 1, wherein, The length of the tube replacement guide wire is at least 90.0cm, the outer diameter is 0.89mm, and the model is THSF-35-90-AUS1.

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