Bladder fistulization puncture needle capable of preventing urine from overflowing

Abstract

The cystostomy puncture needle capable of preventing the urine from overflowing comprises two half-wall sleeves which are of a symmetrical structure, the surface of the wall of each half-wall sleeve is provided with two arc-shaped rectangular holes which are equal in size and are in mirror symmetry, valve structures are installed in the arc-shaped rectangular holes, and the valve structures are connected with the half-wall sleeves. The valve structure is composed of four chordae tendineae structures with the same size; a plurality of rectangular grooves are formed in the two sides of the long axis edge of the half-wall sleeve on one side at equal intervals, and comb-tooth-shaped structures are arranged on the two sides of the long axis edge of the half-wall sleeve on the other side. The disposable puncture needle is simple in structure and convenient to use, solves the problem that a large amount of urine overflows when the puncture needle core is pulled out by arranging the valve structure similar to a one-way valve, and is worthy of use and popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of urology surgery, in particular to a cystostomy puncture needle for preventing urine overflow. Background Art

[0002] In urology clinic, due to obstructive bladder emptying disorders, such as prostatic hyperplasia, urethral stenosis, urethral stones, neurogenic bladder dysfunction, urethral stenosis and rupture after trauma, urethral tumors, and the need for electrosurgical resection of the prostate, urine retention in the bladder and the inability to insert a catheter or repeated inflammation caused by indwelling catheters require drainage. Once urinary retention is formed, it is easy to cause urination difficulties, and in severe cases it can cause bladder rupture, bilateral hydronephrosis, and even renal failure.

[0003] Cystostomy is a common method for treating urinary retention, but there are certain problems in the traditional cystostomy operation. For example, a large amount of urine overflows when the puncture needle core is pulled out, which increases the patient's postoperative care problems and the risk of postoperative infection. At the same time, the traditional cystostomy needle is a three-piece iron product that needs to be strictly disinfected before use. The operation is cumbersome and often requires guidance from an ultrasound doctor. Utility Model Content

[0004] In order to solve the problem of a large amount of urine overflowing when the doctor pulls out the puncture needle core and the indwelling catheter, and reduce the risk of postoperative infection in patients, the utility model proposes a cystostomy puncture needle that prevents urine overflow, comprising:

[0005] A half-wall sleeve, wherein the number of the half-wall sleeves is two and the structure is symmetrical, and the surface of the tube wall of each half-wall sleeve is provided with two equal-sized and mirror-symmetrical arc rectangular holes, and a valve structure is installed inside the arc rectangular holes, and the valve structure is composed of four equal-sized tendon chord structures;

[0006] A plurality of rectangular grooves with equal spacing are arranged on both sides of the long axis edge of the half-wall sleeve on one side, and a comb-tooth structure is arranged on both sides of the long axis edge of the half-wall sleeve on the other side.

[0007] Furthermore, a puncture needle core head is provided at the bottom of the half-wall casing on one side.

[0008] Furthermore, the half-wall sleeve is made of transparent acrylic.

[0009] Furthermore, sealing gaskets are provided on the long axis edge surfaces of the two half-wall sleeves.

[0010] Furthermore, the sealing gasket is made of silicone.

[0011] Furthermore, the comb-tooth structure is correspondingly engaged with the rectangular groove.

[0012] Compared with the prior art, the advantages of the utility model are:

[0013] 1. A valve structure similar to a one-way valve is installed in the cannula. The operator can insert the catheter into the bladder from the outside of the puncture cannula along the direction of the opening of the valve structure. At the same time, under the impact of urine, the valve structure tends to be perpendicular to the puncture cannula, the valve structure is closed, the tendon chordae are pulled to the longest length, the valve structure cannot be turned out, and urine cannot flow out of the puncture cannula, which solves the problem of a large amount of urine overflowing when the puncture needle core is pulled out;

[0014] 2. The sleeve of the utility model adopts a comb-tooth structure to be connected with the rectangular groove. When the catheter is pulled out, in order to avoid excessive friction between the catheter and the valve structure, the operator can apply pressure to the puncture sleeve to break the sleeve into two pieces, and the sleeve can be directly pulled out. It is simple and convenient to use and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 is Figure 1 Based on the enlarged schematic diagram of the valve structure,

[0018] Figure 3 is Figure 2 Based on the diagram, an enlarged schematic diagram of the chord structure is shown.

[0019] The reference numerals are as follows:

[0020] Arc rectangular hole 1, rectangular groove 2, comb-tooth structure 3, puncture needle core head 4, valve structure 5, tendon structure 6, half-wall sleeve 7. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0023] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0024] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Please refer to Figures 1 to 3 The utility model provides a cystostomy puncture needle for preventing urine overflow, comprising a half-wall sleeve 7, wherein:

[0027] like Figures 1 to 3 , there are two half-wall sleeves 7 in number and in a symmetrical structure, and the wall surface of each half-wall sleeve 7 is provided with two equal-sized and mirror-symmetrical arc rectangular holes 1, and a valve structure 5 is installed inside the arc rectangular hole 1, and the valve structure 5 is composed of four equal-sized tendon chord structures 6. Preferably, the half-wall sleeve 7 is made of transparent acrylic, which is a colorless and transparent organic glass with a light transmittance of more than 92%, and has excellent weather resistance, which can improve the hygienic safety of medical equipment. Compared with the traditional puncture sleeve, which can only determine whether the bladder is punctured by observing the side channel, the puncture sleeve of the utility model can directly observe the puncture situation with the naked eye;

[0028] A plurality of rectangular grooves 2 with equal spacing are arranged on both sides of the long axis edge of the half-wall sleeve 7 on one side, and a comb-tooth structure 3 is arranged on both sides of the long axis edge of the half-wall sleeve 7 on the other side. Preferably, the comb-tooth structure 3 is correspondingly engaged with the rectangular groove 2. When the catheter is pulled out, in order to avoid excessive friction between the catheter and the valve structure 5, the operator can apply pressure to the puncture sleeve to break the sleeve into two pieces, and the sleeve can be directly pulled out, which is simple and convenient to use;

[0029] In order to improve the tightness of the connection between the two half-wall sleeves 7, sealing pads are provided on the long axis edge surfaces of the two half-wall sleeves 7. The sealing pads are made of silicone. Silicone is non-toxic and odorless, has good sealing effect, and is suitable for use in the medical field.

[0030] In order to use the cannula directly for puncture, a puncture needle core head 4 is provided at the bottom of the half-wall cannula 7 on one side. The cannula can be used directly for puncture, and the operator no longer needs to perform the surgical operation process of pulling out the puncture needle core, which is simple and convenient to use.

[0031] Working principle: insert four tendon chord structures 6 into the puncture cannula through the arc rectangular hole 1, and at the same time combine two half-wall cannulae 7 into a complete tube-like structure through the comb-tooth structure 3 and the rectangular groove 2. Make good preparations for preoperative instruments. After the patient's bladder is filled, he or she takes a supine position. The skin around the position of two horizontal fingers above the pubic symphysis is disinfected. After local anesthesia with lidocaine, the needle is inserted vertically with a syringe to extract the liquid in the bladder to determine the position of the bladder. A longitudinal incision of about 0.5 to 1.0 cm is made. The skin is punctured vertically directly using the new puncture cannula device. When the puncture cannula enters the bladder, urine can be seen filling under the valve structure 5 through the disposable transparent cannula. (Due to the impact of urine, the valve structure 5 tends to be perpendicular to the tube wall, the valve is closed, and the tendon chord structure 6 is pulled to the maximum.) Long length, valve structure 5 cannot be turned out, urine cannot overflow from the puncture sleeve), it can be determined that the bladder has been punctured, and the double-chamber airbag catheter is passed through the valve structure 5 along the opening direction of the valve structure 5 from the outside of the sleeve, and inserted into the patient's bladder from the center of the valve structure 5 (the central opening of the edge of the valve structure 5 is close to the catheter, and urine still cannot overflow), and the urine bag is connected (because the pressure in the bladder is greater than the external pressure, urine flows from the bladder through the catheter into the urine bag, and when the pressure in the bladder is reduced to a certain extent, the urine between the puncture sleeve and the catheter flows back to the bladder under the action of gravity), after all the urine between the puncture sleeve and the catheter flows back to the bladder, the operator slightly presses to split the puncture sleeve into two halves, pinches the catheter, and then pulls out the puncture sleeve, and finally sutures the surgical incision and fixes the catheter. The double-chamber airbag catheter and urine bag in the utility model are both mature technologies in the existing field.

[0032] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A cystostomy puncture needle for preventing urine overflow, characterized in that: include: A half-wall sleeve (7), wherein the number of the half-wall sleeves (7) is two and the structure is symmetrical, and the wall surface of each half-wall sleeve (7) is provided with two arc-shaped rectangular holes (1) of equal size and mirror-symmetrical, and a valve structure (5) is installed inside the arc-shaped rectangular holes (1), and the valve structure (5) is composed of four tendon chord structures (6) of equal size; A plurality of rectangular grooves (2) with equal spacing are arranged on both sides of the long axis edge of the half-wall sleeve (7) on one side, and a comb-tooth structure (3) is arranged on both sides of the long axis edge of the half-wall sleeve (7) on the other side.

2. A cystostomy puncture needle for preventing urine overflow according to claim 1, characterized in that: A puncture needle core head (4) is arranged at the bottom of the half-wall casing on one side.

3. A cystostomy puncture needle for preventing urine overflow according to claim 1, characterized in that: The half-wall sleeve (7) is made of transparent acrylic.

4. A cystostomy puncture needle for preventing urine overflow according to claim 3, characterized in that: The long axis edge surfaces of the two half-wall sleeves (7) are both provided with sealing pads.

5. A cystostomy puncture needle for preventing urine overflow according to claim 4, characterized in that: The sealing gasket is made of silicone.

6. A cystostomy puncture needle for preventing urine overflow according to claim 1, characterized in that: The comb-tooth structure (3) is correspondingly engaged with the rectangular groove (2).

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