Prostate dilation catheter

Abstract

The prostate dilation catheter comprises a main catheter body, the dilation end of the main catheter body is provided with a dilation assembly, the end, away from the dilation assembly, of the main catheter body is provided with a connecting assembly used for flushing and stamping towards the dilation assembly, and the dilation assembly comprises a front bag and a rear bag. The front bag and the rear bag are both five flap bags which are spirally wound at the dilation end of the main tube body, and the main tube body is provided with a front bag filling cavity and a rear bag filling cavity which are respectively communicated with the front bag and the rear bag. The utility model discloses simple structure, reasonable in design, the anterior balloon and posterior balloon structure adopt the flap spiral structure, compared with the current air bag on the market, the whole outline of catheter is greatly reduced, easy reach the diseased region, and the noninvasive to human tissue, and stamping pipeline connection is more stable, prevents curing position aging to influence the connection strength, prolongs the life.

Description

Technical Field

[0001] The utility model relates to the technical field of medical catheters, in particular to a prostate dilation catheter. Background Art

[0002] Prostatic hyperplasia is a common disease in middle-aged and elderly men. The so-called prostatic hyperplasia is mainly due to the proliferation of prostate tissue, which causes its volume to increase, and then squeezes the surrounding organs, causing the urinary tract to become smaller and narrower, resulting in symptoms such as difficulty urinating, frequent urination, and long urination time. The traditional treatment method is to cut the prostate tissue, but the operation is a big blow to the patient, and the elderly have a poor physical and psychological tolerance for surgery and are unwilling to undergo surgery. The more advanced treatment method is prostate dilation surgery. This treatment surgery is to insert a prostate dilation catheter into the patient's prostate urethra and use a balloon to fill it with water for treatment. This surgery has little trauma, short operation time, and high safety factor. It is the best choice for prostate patients.

[0003] Insufficient existing technology:

[0004] At present, the two balloons at the dilation end of the dilation catheter are set on the outside of the main body by stretching. The stretching method cannot make the balloon fit regularly on the main body. The overall profile of the catheter is large, and it is difficult to enter the human body and pass through stenotic lesions, causing great damage to the patient. It is difficult to restore the negative pressure to the original state after dilation, and the patient is harmed again when the catheter is pulled out. At the same time, the stretching structure will affect the tensile deformation of the balloon. After filling, the surface of the balloon is prone to anisotropic deformation, which affects the dilation effect. Utility Model Content

[0005] The utility model aims to provide a prostate fissure dilation catheter to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a prostate fissure dilation catheter, comprising a main body, the fissure dilation end of the main body is provided with a fissure dilation component, the end of the main body away from the fissure dilation component is provided with a connecting component for flushing and punching the fissure dilation component, the fissure dilation component comprises a front capsule and a rear capsule, the front capsule and the rear capsule are both five-petal folded-wing capsules spirally rolled up at the fissure dilation end of the main body, and the main body is provided with a front capsule filling cavity and a rear capsule filling cavity respectively connected to the front capsule and the rear capsule.

[0007] Preferably, the connection assembly comprises:

[0008] A front capsule filling tube, one end of which is arranged on the main body and communicated with the front capsule filling cavity;

[0009] A posterior capsule filling tube, one end of which is disposed on the main body and communicated with the posterior capsule filling cavity;

[0010] A flushing pipe, one end of which is arranged on the main pipe body, and a flushing cavity and a flushing port which are connected with the flushing pipe are arranged inside the main pipe body;

[0011] A connecting sleeve is arranged outside the connection between the front balloon filling tube, the rear balloon filling tube and the flushing tube and the main pipe body.

[0012] Preferably, a guide wire is arranged at one end of the main body, a catheter cavity matching the guide wire and used for catheterization is arranged on the main body, and a catheter and a catheter port communicating with the catheter cavity are arranged on both sides of the main body.

[0013] Preferably, a protective cover is provided on the outside of the front capsule and the rear capsule of the main pipe body.

[0014] Preferably, a soft head is provided at the front end of the expansion portion of the main pipe body, the front end of the soft head is hemispherical, and the rear end of the soft head is conical.

[0015] Preferably, a positioning protrusion is provided on the main tube at a side of the rear capsule away from the front capsule.

[0016] Preferably, a connector is provided at one end of the front and rear balloon filling tubes away from the main pipe body.

[0017] Preferably, the surfaces of the anterior capsule and the posterior capsule are coated with a coating containing the active drug paclitaxel.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The prostate dilation catheter is provided with a front capsule and a rear capsule, both of which are five-petal folded-wing capsules spirally rolled up at the dilation end of the main body. The front capsule and the rear capsule structure adopt a folded-wing spiral structure. Compared with the airbag with a stretching structure, the overall profile of the catheter is greatly reduced, the lesion site is easy to reach, and there is no trauma to human tissue. At the same time, the stamped pipeline connection is more stable, which prevents the aging of the solidified position from affecting the connection strength and increases the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is the overall front view of the utility model;

[0022] Figure 3 It is a schematic diagram of the front and rear capsules of the utility model being rolled up;

[0023] Figure 4 It is a schematic diagram of filling the anterior capsule and the posterior capsule of the utility model;

[0024] Figure 5It is a schematic cross-sectional view of the front capsule of the present invention.

[0025] In the figure: 1. main body; 101. anterior capsule filling cavity; 102. posterior capsule filling cavity; 103. flushing cavity; 104. flushing port; 105. catheter cavity; 2. expansion component; 21. anterior capsule; 22. posterior capsule; 3. connecting component; 31. anterior capsule filling tube; 32. posterior capsule filling tube; 33. flushing tube; 34. connecting sleeve; 4. guide wire; 5. catheter; 6. protective sleeve; 7. soft head; 8. positioning convex; 9. connecting head. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, it can be fixed connection, setting, or detachable connection, setting, or integrated connection, setting. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0030] Example

[0031] See also Figure 1-5The utility model provides a technical solution for a prostate fissure dilation catheter: a prostate fissure dilation catheter, comprising a main body 1, a fissure dilation component 2 is installed at the dilation end of the main body 1, and a connecting component 3 for flushing and punching the dilation component 2 is connected to the end of the main body 1 away from the dilation component 2, and the dilation component 2 comprises a front capsule 21 and a rear capsule 22, and the front capsule 21 and the rear capsule 22 are both five-petal folded-wing capsules spirally rolled at the dilation end of the main body 1, and the main body 1 is provided with a front capsule filling cavity 101 and a rear capsule filling cavity 102 respectively connected to the front capsule 21 and the rear capsule 22. Before the front capsule 21 and the rear capsule 22 are filled, the five-petal folded-wing spiral rolling method is adopted. Compared with the existing method of stretching before filling the capsule body, the deformation of the front capsule 21 and the rear capsule 22 after filling is more stable and reliable, which prevents the airbag from deforming irregularly after deformation due to stretching, thereby affecting the fissure dilation effect.

[0032] The connecting assembly 3 includes a front capsule filling tube 31, a rear capsule filling tube 32, a flushing tube 33 and a connecting sleeve 34. One end of the front capsule filling tube 31 is integrally molded on the main body 1 and communicates with the front capsule filling cavity 101. One end of the rear capsule filling tube 32 is integrally molded on the main body 1 and communicates with the rear capsule filling cavity 102. One end of the flushing tube 33 is integrally molded on the main body 1. A flushing cavity 103 and a flushing port 104 connected to the flushing tube 33 are provided inside the main body 1. The connecting sleeve 34 is arranged on the outside of the connection between the front capsule filling tube 31, the rear capsule filling tube 32 and the flushing tube 33 and the main body 1, and is respectively connected to the pressure pump through the front capsule filling tube 31 and the rear capsule filling tube 32, and the filling liquid is injected into the front capsule 21 and the rear capsule 22 through the front capsule filling cavity 101 and the rear capsule filling cavity 102, so that the front capsule 21 and the rear capsule 22 are filled respectively.

[0033] A guide wire 4 is inserted into one end of the main body 1, and a catheter cavity 105 matching the guide wire 4 and used for catheterization is opened on the main body 1. A catheter 5 connected to the catheter cavity 105 is integrally formed on one side of the main body 1 by injection molding, and a catheter port connected to the catheter cavity 105 is opened at the other end of the main body 1.

[0034] A protective cover 6 is provided on the outside of the front capsule 21 and the rear capsule 22 on the main tube body 1 to ensure that the front capsule 21 and the rear capsule 22 are effectively spirally rolled up on the main tube body 1 before use.

[0035] The front end of the expansion of the main body 1 is solidified and connected with a soft head 7 to prevent damage to the internal tissues of the human body and improve the comfort during the insertion process. The front end of the soft head 7 is hemispherical, which can better reduce friction and facilitate turning during insertion. The rear end of the soft head 7 is conical, which is convenient for better reducing the friction of the soft head 7 when the main body is pulled out, and is non-traumatic to the human tissue.

[0036] A positioning protrusion 8 is solidified and installed on the main body 1 at the side of the rear capsule 22 away from the front capsule 21, so that medical staff can determine the insertion positions of the front capsule 21 and the rear capsule 22 through the positioning protrusion 8 during the operation.

[0037] The ends of the front and rear bladder filling tubes 31 and 32 that are away from the main tube body 1 are connected with connectors 9 for connection with a pressure pump to inject filling liquid.

[0038] The surfaces of the anterior capsule 21 and the posterior capsule 22 are coated with a coating containing the active drug paclitaxel, which can effectively prevent tissue endothelial hyperplasia.

[0039] When the device is in use, before inserting it into the body, the protective cover 6 is first removed. After the main body 1 is inserted into the body, the medical staff determines whether the front capsule 21 and the rear capsule 22 are inserted into the appropriate position by touching the positioning protrusion 8 in the body, and then connects the front capsule filling tube 31 and the rear capsule filling tube 32 to the pressure pump through the connector 9 respectively, and injects filling liquid through the pressure pump to make the front capsule 21 and the rear capsule 22 unfold respectively. The front capsule 21 and the rear capsule 22 of the device adopt a folded-wing spiral structure. Compared with the airbag with a stretched structure, the overall profile of the catheter is greatly reduced, which is easy to reach the lesion site and is non-traumatic to human tissue. At the same time, the stamping pipeline connection is more stable, which prevents the aging of the solidified position from affecting the connection strength and increases the service life. At the same time, the soft head 7 is non-traumatic to human tissue.

[0040] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A prostate dilation catheter, comprising a main body (1), characterized in that: The expansion end of the main pipe (1) is provided with a expansion component (2), and the end of the main pipe (1) away from the expansion component (2) is provided with a connection component (3) for flushing and punching the expansion component (2). The expansion component (2) comprises a front capsule (21) and a rear capsule (22), and both the front capsule (21) and the rear capsule (22) are five-petal folded-wing capsules spirally rolled up at the expansion end of the main pipe (1). The main pipe (1) is provided with a front capsule filling cavity (101) and a rear capsule filling cavity (102) which are respectively connected to the front capsule (21) and the rear capsule (22).

2. The prostate dilation catheter according to claim 1, characterized in that: The connection component (3) comprises: A front bladder filling tube (31), one end of which is arranged on the main body (1) and communicates with the front bladder filling cavity (101); A posterior capsule filling tube (32), one end of which is arranged on the main body (1) and communicates with the posterior capsule filling cavity (102); A flushing tube (33), one end of which is arranged on the main pipe body (1), and a flushing cavity (103) and a flushing port (104) which are in communication with the flushing tube (33) are arranged inside the main pipe body (1); A connecting sleeve (34) is arranged on the outside of the connection between the front bladder filling tube (31), the rear bladder filling tube (32) and the flushing tube (33) and the main body (1).

3. The prostate dilation catheter according to claim 1, characterized in that: A guide wire (4) is arranged at one end of the main body (1), a catheter cavity (105) matching the guide wire (4) and used for urinary catheterization is arranged on the main body (1), and a urinary catheter (5) and a urinary catheter port connected to the urinary catheter cavity (105) are arranged on both sides of the main body (1).

4. The prostate dilation catheter according to claim 1, characterized in that: A protective cover (6) is provided on the outside of the front bag (21) and the rear bag (22) on the main pipe body (1).

5. The prostate dilation catheter according to claim 1, characterized in that: The expansion front end of the main pipe (1) is provided with a soft head (7), the front end of the soft head (7) is hemispherical, and the rear end of the soft head (7) is conical.

6. The prostate fissure dilation catheter according to claim 2, characterized in that: A positioning protrusion (8) is provided on the main tube (1) at a side of the rear capsule (22) away from the front capsule (21).

7. The prostate dilation catheter according to claim 2, characterized in that: A connector (9) is provided at one end of the front bladder filling tube (31) and the rear bladder filling tube (32) away from the main tube (1).

8. The prostate dilation catheter according to claim 1, characterized in that: The surfaces of the anterior capsule (21) and the posterior capsule (22) are both coated with a coating containing the active drug paclitaxel.

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