Male urethra protective sleeve
By designing a male urethral protective cover, the combined structure of the membrane cover and the inner core is used to solve the damage caused by the endoscopic direct contact with the urethra, and urine is drained through the hollow duct, double protection of the urethra and bladder is achieved, improving operational safety.
Patent Information
- Application Number
- CN202421119309.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-05-22
AI Technical Summary
In the prior art, the endoscope directly contacts the urethral mucosa during urethral operation, which can easily lead to urethral mucosa damage, cavernosal damage, bleeding, infection and urethral stenosis, and the accumulation of urine and irrigation fluid in the bladder leads to excessive bladder filling.
A male urethral protective cover is designed, including a membrane sleeve and an inner core. The membrane sleeve is inserted into the urethra through the inner core to form a protective layer to prevent the lens from directly contacting the urethra. The inner core has a bent structure for easy insertion. The membrane sleeve is equipped with a hollow pipe to drain urine and rinse liquid.
It effectively reduces the damage to the urethra by the endoscopy, prevents damage to the urethra mucosa and cavernosum and related complications, and avoids excessive bladder filling, improving the safety and comfort of urethra operation.
Smart Images
Figure CN222640605U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of urology, in particular to a male urethra protective sleeve. Background Art
[0002] At present, when performing ureteroscopy, cystoscopy, percutaneous nephrolithotomy and other endoscopic transurethral operations, the scope is directly inserted, and the scope will directly contact the urethra. The end of the lens may scrape the urethra, which will cause damage to the urethral mucosa. In severe cases, it will cause damage to the corpus spongiosum of the urethra, bleeding and infection, and even urethral stenosis in the future. In particular, the male urethra has two physiological bends. Each time the scope is inserted, the angle of the scope needs to be adjusted to avoid the lens from damaging the urethral mucosa. However, it is difficult to keep the end of the lens in the middle of the urethra when withdrawing the scope. Therefore, the lens is easy to scratch the urethra. In particular, operations that require repeated insertion and withdrawal of the scope will basically damage the urethral mucosa and even the corpus spongiosum of the urethra, causing bleeding, infection, and postoperative urethral scar stenosis, requiring repeated urine dilation treatment in the future. In addition, continuous urethral operations without a flow-out channel lead to the accumulation of urine and flushing fluid in the bladder, resulting in overfilling of the bladder. Summary of the invention
[0003] In view of the defects existing in the prior art, the purpose of the utility model is to provide a male urethra protective sleeve to solve the problem that the existing mirror body may cause damage to the urethra mucosa due to direct contact with the urethra.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0005] The present application provides a male urethra protective sleeve, which includes a film sleeve and an inner core. The film sleeve includes a protective film tail end for facilitating the insertion of the inner core and a protective film head end for the inner core to extend outward. The outer diameter of the protective film head end is smaller than the outer diameter of the insertion end corresponding to the inner core, so that when the inner core is inserted into the urethra and bladder, the protective film head end is pressed and pushed into the urethra and bladder through the insertion front end.
[0006] Furthermore, the inner core includes a straight rod-shaped inner core body, an inner core front end formed at one end of the inner core body, and an inner core tail end formed at the other end of the inner core body, a first bending angle is formed between the inner core front end and the inner core body, a second bending angle is formed between the inner core tail end and the inner core body, and the bending directions of the inner core front end and the inner core tail end are in the same direction.
[0007] Furthermore, the front end of the inner core is a smooth insertion end appearance structure with an outer diameter gradually decreasing toward the front end.
[0008] Furthermore, the inner diameter of the opening at the head end of the protective film is larger than the outer dimensions of the operating mirror used in conjunction with the film sleeve, so as to form a gap channel for the circulation of bladder urine or flushing fluid between the inner wall of the film sleeve and the outer wall of the operating mirror.
[0009] Furthermore, a mesh support layer is formed on the outer surface of the membrane sleeve to enhance its toughness.
[0010] Furthermore, a fiber strip-shaped reinforcing rib is arranged along the axial direction on one side of the inner wall of the membrane sleeve to prevent the membrane sleeve from forming wrinkles.
[0011] Furthermore, the inner cavity of the membrane sleeve is provided with a hollow pipe along its axial direction for draining urine or flushing fluid in the bladder.
[0012] Furthermore, the rear end of the protective film is formed with a trumpet-shaped insertion opening for facilitating the insertion of the inner core, and the insertion opening is provided with a support ring for maintaining its circular shape.
[0013] The beneficial effects of the utility model are:
[0014] 1. By placing a membrane sleeve between the urethra and the operating instrument, the transurethral operating instrument is prevented from directly contacting the urethral mucosa, thereby reducing the damage to the urethra caused by the operating instrument;
[0015] 2. By adding a hollow tube in the inner cavity of the membrane sleeve, the urine and flushing fluid in the bladder can be effectively drained to avoid over-distension of the bladder and excessive pressure. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the male urethra protective sleeve structure in an embodiment of the present application.
[0017] Figure 2 This is a schematic diagram of the inner core structure in an embodiment of the present application.
[0018] Figure 3 Schematic diagram of the membrane sleeve structure in the embodiment of the present application.
[0019] Figure 4 This is a schematic diagram of the structural state of the embodiment of the present application when the inner core is placed into the urethra under the guidance of a guide wire.
[0020] Figure 5 This is a schematic diagram of the structural state of the guidewire after it is successfully placed into the urethra according to an embodiment of the present application.
[0021] Figure 6 This is a schematic diagram of the structural state of the embodiment of the present application when the urethroscope is used for operation after successfully entering the urethra.
[0022] In the figure:
[0023] 100-male urethra protective sleeve, 10-inner core, 11-inner core rod, 12-front end of inner core, 13-rear end of inner core, 14-smooth insertion end shape structure, 15-first angle, 16-second angle, 20-membrane sleeve, 21-side hole, 22-head end of protective membrane, 23-rear end of protective membrane, 24-mesh support layer, 25-hollow tube, 26-support ring, 300-guide wire. DETAILED DESCRIPTION
[0024] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0025] See attached Figure 1 As shown, this embodiment provides a male urethra protection sleeve 100, which includes a film sleeve 20 and an inner core 10. The inner core 10 is installed in the inner cavity of the film sleeve 20 to guide the film sleeve 20 into the patient's urethra; and the film sleeve 20 is used to provide a protective film between the operating instrument entering the patient's urethra and the urethra to prevent the operating instrument from directly contacting the urethra and causing urethral damage.
[0026] See attached Figure 2 As shown, the inner core 10 as a whole adopts a core body with a smooth surface and hard texture. Specifically, the inner core 10 includes a straight rod-shaped inner core rod body 11, an inner core front end 12 formed at one end of the inner core rod body 11, and an inner core tail end 13 formed at the other end of the inner core rod body 11. When the operator operates the inner core to enter the inner cavity of the film sleeve 20, the operator first enters the inner core front end 12 into the inner cavity of the film sleeve 20 by holding and operating the inner core tail end 13, and continuously pushes the inner core tail end 13 forward to drive the inner core front end 12 to slide forward in the inner cavity of the film sleeve 20 until the film sleeve 20 is introduced into the patient's urethra and placed in place. It can be understood that in order to avoid damage to the film sleeve 20 during the installation process of the guiding film sleeve 20 in the patient's urethra, the entire outer surface of the inner core is a smooth outer surface.
[0027] Continue to refer to the attached Figure 2 As shown, in order to match the physiological structure of the male urethra (the male urethra has two physiological bends) and facilitate better placement of the inner core, a first angle 15 is formed between the front end 12 of the inner core and the inner core rod body 11, that is, a curved portion is formed between the front end 12 of the inner core and the inner core rod body 11. At the same time, since the operator operates the inner core rod body 11 by operating the rear end 13 of the inner core during use, in order to facilitate holding and timely determine the bending direction of the front end 12 of the inner core during operation, a second angle 16 is formed between the rear end 13 of the inner core and the inner core rod body 11, and the bending direction of the rear end 13 of the inner core is the same as the bending direction of the front end 12 of the inner core relative to the inner core rod body 11, so that the operator can intuitively and quickly know the bending direction of the front end 12 of the inner core when operating the inner core.
[0028] See attached Figure 3 As shown, the membrane cover 20 is a transparent membrane cover with a certain toughness to adapt to the changes in the curvature of the male urethra and will not cause compression damage to the urethra. For example, a plastic material can be used. Specifically, the membrane cover 20 includes a protective membrane tail end 23 for facilitating the insertion of the inner core and a protective membrane head end 22 for the inner core to extend outward. The outer diameter of the protective membrane head end 22 is smaller than the outer diameter of the inner core front end 12, and is used to press and push the protective membrane head end 22 into the urethra bladder through the inner core front end 12 when the inner core is inserted into the urethra bladder.
[0029] See attached Figure 1 and attached Figure 2 As shown, in order to facilitate insertion into the urethra and clamping the protective film tip 22, the inner core front end 12 is a smooth insertion end shape structure 14 whose outer diameter gradually decreases toward the front end, that is, the inner core front end 12 is formed with a gradually tapering smooth tip.
[0030] See attached Figure 3 As shown, the inner diameter of the opening at the head end 22 of the protective film is larger than the outer dimensions of the operating mirror used in conjunction with the film sleeve 20, so as to form a gap channel for the circulation of bladder urine or flushing fluid between the inner wall of the film sleeve 20 and the outer wall of the operating mirror.
[0031] Continue to refer to the attached Figure 3 As shown, in order to maintain the softness of the film sleeve 20 while giving it a certain toughness, a mesh support layer 24 for enhancing its toughness may be formed on the outer surface of the film sleeve 20. The mesh support layer 24 may be composed of fiber support strips with different orientations.
[0032] Continue to refer to the attached Figure 3 As shown, in addition, in order to prevent the film sleeve 20 from wrinkling easily during the process of being placed in the urethra, a fiber strip reinforcement rib for preventing the film sleeve 20 from wrinkling can be arranged along the axial direction on one side of the inner wall of the film sleeve 20. A hollow pipe 25 for draining urine or flushing fluid in the bladder can also be arranged along the axial direction in the inner cavity of the film sleeve 20. In addition, a side hole 21 is arranged at the head end 22 of the protective film for draining urine or flushing fluid in the bladder.
[0033] See attached Figure 1 and attached Figure 3 As shown, the rear end 23 of the protective film is formed with a trumpet-shaped insertion port for easy insertion of the inner core, and the insertion port is provided with a support ring 26 for maintaining its circular shape to prevent the film sleeve 20 from completely entering the urethra during the insertion process. At the same time, the enlarged diameter of the rear end can facilitate each entry of the endoscope into the film sleeve 20 (i.e., insertion into the urethra).
[0034] See attached Figure 4 To Attachment Figure 6 As shown, in order to better understand the male urethra protective sleeve in this embodiment, the working process thereof is briefly described below:
[0035] The first step: insert the inner core into the membrane sleeve 20; the second step: directly use the feel to insert the protective membrane head end 22 into the bladder (or first insert the guide wire 300 into the bladder through the endoscope, and then use the guide wire 300 to pass through the channel of the inner core and insert it into the bladder under the guidance of the guide wire 300); or use a cystoscope together with a cystoscope sheath, directly insert it into the membrane sleeve 20, and insert it into the bladder under direct vision; the third step: withdraw the inner core or the cystoscope and the outer sheath to complete the insertion.
[0036] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include these modifications and variations.
Claims
1. A male urethral protective sleeve, characterized in that: The male urethra protective sleeve includes a film sleeve and an inner core. The film sleeve includes a protective film tail end for facilitating the insertion of the inner core and a protective film head end for the inner core to extend outward. The outer diameter of the protective film head end is smaller than the outer diameter of the corresponding insertion end of the inner core. When the inner core is inserted into the urethra and bladder, the protective film head end is pressed and pushed into the urethra and bladder through the insertion front end.
2. A male urethra protective sleeve according to claim 1, characterized in that: The inner core includes a straight rod-shaped inner core body, an inner core front end formed at one end of the inner core body, and an inner core tail end formed at the other end of the inner core body, a first bending angle is formed between the inner core front end and the inner core body, a second bending angle is formed between the inner core tail end and the inner core body, and the bending directions of the inner core front end and the inner core tail end are in the same direction.
3. A male urethral protective sleeve according to claim 2, characterized in that: The front end of the inner core is a smooth insertion end appearance structure with an outer diameter gradually decreasing toward the front end.
4. A male urethra protective sleeve according to claim 1 or 2, characterized in that: The inner diameter of the opening at the head end of the protective film is larger than the outer dimensions of the operating mirror used in conjunction with the film sleeve, so as to form a gap channel for the circulation of bladder urine or flushing fluid between the inner wall of the film sleeve and the outer wall of the operating mirror.
5. The male urethra protective sheath according to claim 1, characterized in that: A mesh support layer is formed on the outer surface of the film sleeve to enhance its toughness.
6. A male urethral protective sleeve according to claim 1 or 5, characterized in that: One side of the inner wall of the film sleeve is provided with fiber strip-shaped reinforcing ribs along its axial direction for preventing the film sleeve from forming wrinkles.
7. A male urethra protective sleeve according to claim 1 or 5, characterized in that: The inner cavity of the membrane sleeve is provided with a hollow pipe along its axial direction for draining urine or flushing liquid in the bladder.
8. The male urethra protective sleeve according to claim 1, characterized in that: The rear end of the protective film is formed with a trumpet-shaped insertion opening for facilitating the insertion of the inner core, and the insertion opening is provided with a supporting ring for maintaining its circular shape.