Simple and convenient disposable bladder puncture fistulization kit
By designing a sheath and enlarged sheath kit, the problem that existing bladder puncturers cannot accurately control depth and aperture is solved, and convenient and safe cystostomy operation is achieved, suitable for single-person completion.
Patent Information
- Application Number
- CN202421845675.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-07-31
AI Technical Summary
Existing bladder puncturers cannot accurately grasp the puncture depth, have fixed puncture apertures, poor sealing, easy displacement, and difficult to meet the needs of urinary catheters of different sizes, affecting the efficiency and safety of cystostomy.
A kit consisting of a sheath, a puncture core and an enlarged sheath is designed with a small channel in the sheath to judge the success of the puncture. The enlarged sheath can adjust the aperture, and facilitate operation through inverted triangle notch and handheld parts. The material is selected for medical plastic to reduce displacement and damage.
It achieves precise control of the puncture depth and aperture, reduces bladder damage, improves the convenience and safety of operation, and is suitable for single-person cystostomy.
Smart Images
Figure CN223158412U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices for bladder puncture, and specifically relates to a simple disposable bladder puncture fistula kit. Background Art
[0002] Bladder fistulation is caused by urethral obstruction, resulting in urinary retention due to the inability of urine in the bladder to be discharged. A bladder fistulation operation is performed in the lower abdominal area above the pubic symphysis to drain urine to the outside of the body, which is divided into temporary or permanent solutions to the patient's difficulty in urination. Before performing bladder fistulation, a puncture needle needs to be used to puncture the filled bladder to form a fistulation opening, and then the fistulation operation is carried out.
[0003] However, during the process of bladder fistulation, the following problems will occur: 1. The traditional bladder puncture needle is just a single needle, which is only used to drain part of the urine after puncturing into the bladder. During the puncture process, the insertion depth cannot be observed. Sometimes, the puncture needle is too deep, which will damage the bladder mucosa and penetrate the posterior wall of the bladder, resulting in bladder perforation with bleeding. 2. Currently, the traditional bladder puncture device used in the market is mainly a three-piece stainless steel puncture device. The urine discharge channel is closed, partially opened, and fully opened by rotating three parts. Its advantages are that it can be repeatedly disinfected and used and is not easily damaged; its disadvantages are as follows: a. The puncture depth cannot be determined clearly; b. The three parts cannot be completely fixed, resulting in an increase in puncture force; c. The sealing performance between the three parts is poor, resulting in urine overflow; d. When partially opened, a urinary catheter needs to be inserted in a timely manner. The hole is too large, and too much urine flows out before the urinary catheter is inserted, which may cause the bladder to contract and the puncture instrument to shift; e. The size of the puncture hole punctured is fixed, and the puncture hole size cannot be changed. The size is too small and is easy to block. When a medical device with a larger diameter needs to be indwelled, it may cause secondary damage to the puncture opening; f. The urology department usually has 2 - 4 sets of puncture devices. The cleaning and disinfection time after use is too long. When there are many patients, it may cause the puncture device to not be effectively rotated, and the bladder puncture fistula operation cannot be performed on the patient in a timely manner. Based on this, a simple disposable bladder puncture fistula kit is designed, which can control the puncture depth, change the puncture diameter, and it is not easy for the sheath, puncture inner core, and dilating sheath to shift. After the fine channel on the inner wall of the sheath penetrates into the bladder, it can be determined that the puncture inner core (also called the bladder puncture fistula needle) has entered the bladder when a thin stream of urine flows out. After the puncture is successful, first withdraw the puncture inner core, insert the urinary catheter, then withdraw the sheath and the dilating sheath, and then tear the sheath and the dilating sheath, which is more convenient to use. Content of the Utility Model
[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a simple disposable bladder puncture fistula kit, which can control the puncture depth, change the puncture diameter, and it is not easy for the sheath, puncture inner core, and dilating sheath to shift. After the fine channel on the inner wall of the sheath penetrates into the bladder, it can be determined that the puncture inner core (also called the bladder puncture fistula needle) has entered the bladder when a thin stream of urine flows out. After the puncture is successful, first withdraw the puncture inner core, insert the urinary catheter, then withdraw the sheath and the dilating sheath, and then tear the sheath and the dilating sheath, which is more convenient to use.
[0005] The purpose of the present utility model is achieved through the following technical solutions: A simple disposable bladder puncture and fistula kit, the kit includes a sheath, a puncture inner core, and an expanding sheath for expanding the puncture diameter. The sheath is sleeved outside the puncture inner core, the expanding sheath is sleeved outside the sheath, and a fine channel of the inner wall of the sheath, that is, a urine outflow channel, is provided inside the sheath. This channel is relatively thin, and the flowing urine can be used as a sign of having punctured into the bladder, and at the same time, it will not cause excessive bladder contraction due to too fast urine outflow. A penetrating first opening is provided at the upper part of the sheath, a penetrating second opening is provided on the expanding sheath, and the position of the second opening corresponds to the position of the first opening. The fine channel of the inner wall of the sheath is communicated with the first opening, and the first opening and the second opening can be pinched with fingers to prevent urine from flowing out. The outer side of the puncture inner core is partially recessed inward, and the shape of the recessed part is the same as the shape of the fine channel of the inner wall of the sheath.
[0006] Further, a sheath hand-held part and a triangular notch on the sheath are provided at the top of the sheath. An inverted triangular protrusion is provided on the outer surface of the top of the puncture inner core. An expanding sheath hand-held part and a triangular notch on the expanding sheath are provided at the top of the expanding sheath. The inverted triangular protrusion is respectively matched with the triangular notch on the sheath and the triangular notch on the expanding sheath.
[0007] Further, the size of the triangular notch on the expanding sheath is not less than the size of the triangular notch on the sheath.
[0008] Further, the sheath hand-held part includes a first hand-held part and a second hand-held part. The expanding sheath hand-held part includes a third hand-held part and a fourth hand-held part. The triangular notch on the sheath includes a first triangular notch and a second triangular notch. The first triangular notch and the second triangular notch are respectively provided between the first hand-held part and the second hand-held part, and the position of the first triangular notch corresponds to the position of the second triangular notch. The triangular notch on the expanding sheath includes a third triangular notch and a fourth triangular notch, and the position of the third triangular notch corresponds to the position of the fourth triangular notch. The inverted triangular protrusion includes a first inverted triangular protrusion and a second inverted triangular protrusion. The first inverted triangular protrusion is respectively matched with the first triangular notch and the third triangular notch. The second inverted triangular protrusion is matched with the second triangular notch and the fourth triangular notch. After the puncture of this kit is successful and the urinary catheter is inserted, the sheath and the expanding sheath are withdrawn from the puncture hole, and the sheath hand-held part and the expanding sheath hand-held part are held and pulled forcefully to both sides, so that the sheath and the expanding sheath are respectively torn from the positions of the triangular notch on the sheath and the triangular notch on the expanding sheath, and the sheath and the expanding sheath can be easily detached. Therefore, this kit is for one-time use.
[0009] Furthermore, the top of the sheath is provided with a thickened part, and the thickness of the thickened part is greater than that of the rest of the sheath. The thickening may not be applied at the inverted triangular notch of the sheath to facilitate tearing the sheath from the tip of the inverted triangular notch of the sheath.
[0010] Furthermore, the head of the puncture inner core is set as a triangular pyramid or a quadrangular pyramid, not overly sharp, and the material can be made of medical steel or medical rigid plastic.
[0011] Furthermore, the puncture inner core is made of plastic material.
[0012] Furthermore, both the sheath and the dilating sheath are provided with scales for facilitating the control of the puncture depth.
[0013] The beneficial effects of the present utility model are as follows:
[0014] 1. The present utility model can control the puncture depth and change the puncture diameter, and it is not easy for the sheath, the puncture inner core, and the dilating sheath to shift. After the small channel on the inner wall of the sheath penetrates into the bladder, it can be determined that the puncture inner core (which can also be called the bladder puncture and fistula needle) has entered the bladder when urine flows out in a thin stream. After successful puncture, first withdraw the puncture inner core, insert the urinary catheter, then withdraw the sheath and the dilating sheath from the puncture hole, and then tear the sheath and the dilating sheath to both sides, which is more convenient to use.
[0015] 2. For this bladder puncture and fistula kit, after the user is slightly more skilled, the bladder fistula operation can be completed independently by one person. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic structural view when the sheath, the puncture inner core, and the dilating sheath of the present utility model are punctured into the bladder together;
[0017] Figure 2 It is a schematic structural view after first withdrawing the puncture inner core, retaining the sheath and the dilating sheath, and inserting the urinary catheter along the sheath into the bladder;
[0018] Figure 3 It is a schematic structural view after withdrawing the sheath and the dilating sheath from the puncture hole after inserting the urinary catheter into the bladder, and then tearing the sheath and the dilating sheath to both sides;
[0019] Figure 4 It is a schematic structural view of the puncture inner core;
[0020] Figure 5 It is a schematic structural view of the sheath;
[0021] Figure 6 It is a schematic structural view of the dilating sheath;
[0022] Figure 7 It is a schematic structural view of the inverted triangular protrusion of the puncture inner core and the inverted triangular notch of the sheath;
[0023] In the figure: 1-small channel on the inner wall of the sheath, 2-top outlet, 4-thickened part, 5-inverted triangular notch on the sheath, 6-first opening, 7-inverted triangular protrusion, 8-head, 9-recess, 11-second opening, 21-first hand-held part, 22-second hand-held part, 23-inverted triangular notch on the expanded sheath, 24-third hand-held part, 25-fourth hand-held part. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents selected embodiments of the present invention. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0026] Example 1:
[0027] like Figures 1 to 7As shown in the figure, a simple disposable bladder puncture and fistula creation kit includes a sheath, a puncture inner core, and an expansion sheath for enlarging the puncture diameter. The sheath is sleeved outside the puncture inner core, and the expansion sheath is sleeved outside the sheath. A small channel 1 is provided on the inner wall of the sheath, and a through first opening 6 is provided at the upper part of the sheath. The expansion sheath is provided with a through second opening 11, and the position of the second opening 11 corresponds to the position of the first opening 6. The small channel 1 on the inner wall of the sheath communicates with the first opening 6. The outer part of the puncture inner core is partially recessed inward, and the shape of the recess 9 is the same as the shape of the small channel 1 on the inner wall of the sheath. The small channel 1 on the inner wall of the sheath fits with the recess 9 on the surface of the puncture inner core, so that the puncture inner core and the sheath are relatively fixed and do not rotate. After the puncture inner core is inserted into the sheath, the two are highly sealed and urine will not flow out. First, insert the puncture inner core into the sheath, then put the expansion sheath outside the sheath, and then use a method similar to holding a syringe, block the first opening 6 and the second opening 11 with the inner side of the middle finger or index finger, and press the thumb on the top outlet 2 of the puncture inner core to prevent urine from flowing out. Then, the sheath, the puncture inner core, and the expansion sheath are punctured into the patient's bladder together. After puncture, release the middle finger or index finger blocking the first opening 6 and the second opening 11. The urine in the bladder enters the small channel 1 on the inner wall of the sheath and flows out from the first opening 6 and the second opening 11. Whether there is urine flowing out from the first opening 6 and the second opening 11 can be used to judge whether the bladder puncture and fistula creation kit is inserted in place. After puncture (as Figure 1 shown), first draw out the puncture inner core, retain the sheath and the expansion sheath, immediately insert a urinary catheter into the sheath and inflate the balloon of the urinary catheter (before inserting the urinary catheter, the thumb can be pressed on the top outlet of the sheath to reduce or even avoid urine outflow). After checking that the urinary catheter is in place (as Figure 2 shown), draw out the sheath and the expansion sheath outward (as Figure 3 shown). The expansion sheath can make the aperture of the wound caused by puncturing the patient's bladder larger (that is, the puncture aperture is larger), and can meet the need to insert a larger-sized urinary catheter. When a larger-sized urinary catheter needs to be inserted, after puncture and before inserting the urinary catheter, change to first draw out the puncture inner core and the sheath, retain the expansion sheath, and immediately insert a urinary catheter into the expansion sheath and inflate the balloon of the urinary catheter. The expansion sheath and the sheath are made of the same material, and medical plastics can be selected. Compared with steel materials, it is less likely to cause additional damage to the patient's bladder.
[0028] Example 2:
[0029] Based on Embodiment 1, this embodiment makes improvements to the sheath, the puncture inner core, and the dilation sheath. At the top of the sheath, there are a sheath hand-held component and an inverted triangular notch 5 on the sheath part. On the outer surface of the top of the puncture inner core, there is an inverted triangular protrusion 7. At the top of the dilation sheath, there are a dilation sheath hand-held component and an inverted triangular notch 23 on the dilation sheath part. The inverted triangular protrusion 7 cooperates with the inverted triangular notch 5 on the sheath part and the inverted triangular notch 23 on the dilation sheath part respectively. The inverted triangular protrusion 7 can be engaged and locked with the inverted triangular notch 5 on the sheath part and the inverted triangular notch 23 on the dilation sheath part, making it difficult for the three to be misaligned. At the same time, the sheath hand-held component and the dilation sheath hand-held component are convenient for the index finger and middle finger to grip, facilitating the application of force during the puncture process and also allowing the component to be held to tear open the sheath and the dilation sheath. The tips of the inverted triangular notch 5 on the sheath part and the inverted triangular notch 23 on the dilation sheath part face downward, making it more labor-saving and convenient for the sheath hand-held component to tear open the sheath and the dilation sheath hand-held component to tear open the dilation sheath respectively.
[0030] The size of the inverted triangular notch 23 on the dilation sheath part is not less than the size of the inverted triangular notch 5 on the sheath part.
[0031] The sheath hand-held component includes a first hand-held part 21 and a second hand-held part 22. The dilation sheath hand-held component includes a third hand-held part 24 and a fourth hand-held part 25. The inverted triangular notch 5 on the sheath part includes a first inverted triangular notch and a second inverted triangular notch. The first inverted triangular notch and the second inverted triangular notch are respectively arranged between the first hand-held part 21 and the second hand-held part 22, and the positions of the first inverted triangular notch and the second inverted triangular notch correspond to each other. The inverted triangular notch 23 on the dilation sheath part includes a third inverted triangular notch and a fourth inverted triangular notch, and the positions of the third inverted triangular notch and the fourth inverted triangular notch correspond to each other. The inverted triangular protrusion 7 includes a first inverted triangular protrusion and a second inverted triangular protrusion. The first inverted triangular protrusion cooperates with the first inverted triangular notch and the third inverted triangular notch respectively, and the second inverted triangular protrusion cooperates with the second inverted triangular notch and the fourth inverted triangular notch. The sheath is designed for single use. After the sheath, the puncture inner core, and the dilation sheath are inserted into the urinary catheter, first withdraw the sheath and the dilation sheath from the puncture hole, then hold the first hand-held part 21 and the third hand-held part 24 with the left hand, hold the second hand-held part 22 and the fourth hand-held part 25 with the right hand, and tear them apart to separate the sheath and the dilation sheath.
[0032] Embodiment 3:
[0033] Based on Embodiment 1 or 2, this embodiment makes improvements to the sheath. The top of the sheath is provided with a thickened part 4 for reinforcement, and the thickness of the thickened part 4 is greater than the thickness of the rest of the sheath to prevent deformation during the operation.
[0034] Embodiment 4:
[0035] Based on Embodiments 1-3, in this embodiment, the puncture inner core is improved. The head 8 of the puncture inner core is set as a triangular pyramid or a quadrangular pyramid shape and does not need to be too sharp. During the puncture process, the head 8 of the puncture inner core first penetrates into the bladder.
[0036] The puncture inner core is made of plastic material, and medical steel or medical rigid plastic material can be selected.
[0037] Both the sheath and the dilating sheath are provided with scales for facilitating the control of the puncture depth.
[0038] The above are only the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the concept described herein through the above teachings or the technology or knowledge in related fields. And any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention shall fall within the protection scope of the appended claims of the present invention.
Claims
1. A simple disposable bladder puncture and fistula formation kit, characterized in that: It includes a sheath, a puncture inner core, and an expanding sheath for expanding the puncture diameter. The sheath is sleeved outside the puncture inner core, the expanding sheath is sleeved outside the sheath. A small channel (1) of the inner wall of the sheath is arranged inside the sheath. A through first opening (6) is arranged at the upper part of the sheath. The expanding sheath is provided with a through second opening (11), and the position of the second opening (11) corresponds to the position of the first opening (6). The small channel (1) of the inner wall of the sheath communicates with the first opening (6). The outer part of the puncture inner core is locally recessed inward, and the shape of the recess (9) where the outer part of the puncture inner core is locally recessed inward is the same as the shape of the small channel (1) of the inner wall of the sheath.
2. The simple disposable bladder puncture and fistula creation kit according to claim 1, wherein: A sheath hand-held component and a triangular notch (5) at the sheath part are arranged at the top of the sheath. An inverted triangular protrusion (7) is arranged on the outer surface of the top of the puncture inner core. An expanding sheath hand-held component and an expanding sheath triangular notch (23) are arranged at the top of the expanding sheath. The inverted triangular protrusion (7) is respectively matched with the triangular notch (5) at the sheath part and the expanding sheath triangular notch (23).
3. A simple disposable bladder puncture and fistula creation kit according to claim 2, characterized in that: The notch size of the expanding sheath triangular notch (23) is not less than the notch size of the triangular notch (5) at the sheath part.
4. A simple disposable bladder puncture and fistula kit according to any one of claims 2-3, characterized in that: The sheath hand-held component includes a first hand-held part (21) and a second hand-held part (22). The expanding sheath hand-held component includes a third hand-held part (24) and a fourth hand-held part (25). The triangular notch (5) at the sheath part includes a first triangular notch and a second triangular notch. The first triangular notch and the second triangular notch are respectively arranged between the first hand-held part (21) and the second hand-held part (22), and the position of the first triangular notch corresponds to the position of the second triangular notch. The expanding sheath triangular notch (23) includes a third triangular notch and a fourth triangular notch, and the position of the third triangular notch corresponds to the position of the fourth triangular notch. The inverted triangular protrusion (7) includes a first inverted triangular protrusion and a second inverted triangular protrusion. The first inverted triangular protrusion is respectively matched with the first triangular notch and the third triangular notch. The second inverted triangular protrusion is matched with the second triangular notch and the fourth triangular notch.
5. A simple disposable bladder puncture and fistula creation kit according to claim 1, characterized in that: The top of the sheath is set as a thickened part (4), and the thickness of the thickened part (4) is greater than the thickness of the rest of the sheath.
6. A simple disposable bladder puncture and fistula kit according to claim 1, characterized in that: The head (8) of the puncture inner core is set as a triangular pyramid or a quadrangular pyramid.
7. A simple disposable bladder puncture and fistula creation kit according to claim 6, characterized in that: The puncture inner core is made of a plastic material.
8. A simple disposable bladder puncture and fistula creation kit according to claim 1, characterized in that: Both the sheath and the expanding sheath are provided with scales.