A bladder pressure tube fixing device

Abstract

The present application relates to the technical field of medical devices, in particular to a bladder pressure measuring tube fixing device, comprising a positioning collar, which is fixed on the coronal sulcus of a male patient's penis, and a fitting capsule provided on the positioning collar; a shape-following capsule strip is connected to the fitting capsule, one end of the shape-following capsule strip is provided with a tube calibration element, and a pressure measuring catheter is arranged in the tube calibration element; a guide fixing element is provided on one side of the tube calibration element, which limits the tube body direction of the pressure measuring catheter and limits the axial distance between the pressure measuring catheter and the patient's urethral orifice, thereby achieving the fixation of the pressure measuring catheter; a gas guiding capsule strip is also connected to the fitting capsule, one end of the gas guiding capsule strip is connected with an anti-falling driving element, which drives the adjustment of the relative distance between the pressure measuring catheter and the patient's urethral orifice according to the pressure change of the fitting capsule; the present application realizes the positioning of the shape-following capsule strip through the flexible fitting of the gas capsule, so that the pressure measuring catheter always maintains coaxial compliance with the urethra, thereby reducing the pain of the patient and the risk of urethral mucosa injury.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a bladder pressure monitoring tube fixation device. Background Technology

[0002] A cystometry catheter is a precision medical catheter used to measure changes in pressure within the bladder. It is one of the core tools for diagnosing and treating voiding dysfunction. It is mainly used in urodynamic testing, where pressure changes are measured simultaneously by slowly instilling physiological saline into the bladder to assess bladder capacity, sensation, compliance, and contractile function.

[0003] In the prior art, patent document CN211534459U discloses a bladder pressure tube fixing device for urodynamic testing. It uses a clamp with an elastic pad to hold the pressure tube and uses a strap to form a ring around the penis for fixation, aiming to reduce local compression of the urethra.

[0004] However, these penile surface fixation methods only focus on preventing the pressure-measuring tube from slipping, neglecting the relative movement between the tube and the urethra during penile curvature. When the penis bends, the rigidly fixed tube cannot adapt to the natural curvature of the urethra, leading to radial displacement and compression friction between the tube and the urethral wall, causing pain and, in severe cases, urethral mucosal damage. Therefore, it is necessary to provide a bladder pressure-measuring tube fixation device that can adapt to penile curvature to solve the above-mentioned technical problems. Summary of the Invention

[0005] To address the aforementioned issues, this invention provides a bladder pressure monitoring catheter fixation device. Through a flexible, air-filled fit and a conformal balloon strip for positioning, the pressure monitoring catheter is kept coaxially aligned with the urethra, reducing patient pain and the risk of urethral mucosal damage.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: a bladder pressure measuring tube fixing device, comprising an annular positioning collar, the positioning collar being fixed to the coronal sulcus of the penis of a male patient, and a fitting sac being provided on the inner sidewall of the positioning collar, the fitting sac being flexibly fitted and fixed to the patient's penis through gas exchange, the fitting sac being able to deform in accordance with the morphological changes of the corpora cavernosa of the penis.

[0007] The fitting is connected to a conformal balloon strip. A tube calibration element is provided at the end of the conformal balloon strip away from the fitting. A pressure-measuring catheter is inserted inside the tube calibration element. The tube calibration element is used to limit and calibrate the position of the pressure-measuring catheter relative to the patient's urethral opening.

[0008] A guide fixing component is provided on one side of the calibration component. The guide fixing component is sleeved on the tube body of the pressure measuring catheter. The guide fixing component restricts the direction of the tube body of the pressure measuring catheter and restricts the axial distance between the pressure measuring catheter and the patient's urethral opening, thereby fixing the pressure measuring catheter.

[0009] The fitting bag is also connected to an air guide strip. The end of the air guide strip away from the fitting bag is connected to an anti-dislodgement drive component. The anti-dislodgement drive component adjusts the relative distance between the pressure measuring catheter and the patient's urethral opening according to the air pressure change of the fitting bag.

[0010] The technical principle of the above solution is as follows: This solution uses a positioning ring fixed at the coronal sulcus as the overall fixation base, and utilizes the fitting balloon on its inner wall to achieve flexible fitting with penile tissue through gas exchange. The fitting balloon can adaptively deform according to the changes in the shape of the patient's corpus cavernosum. The conformal balloon strip connected to the fitting balloon extends the fixation reference to the vicinity of the urethral orifice. The tube calibration component at the end of the conformal balloon strip calibrates and limits the position of the inserted pressure-measuring catheter. At the same time, the fitting balloon also transmits air pressure changes to the anti-dislodgement drive component through the air-conducting balloon strip, so that the anti-dislodgement drive component can dynamically adjust the relative distance between the pressure-measuring catheter and the urethral orifice according to the degree of penile erection, thereby achieving the adaptive compensation of the pressure-measuring catheter to changes in penile shape while maintaining fixation effectiveness.

[0011] The above approach has the following beneficial effects:

[0012] 1. To address the problem of radial displacement and compression friction between the pressure measuring catheter and the urethra caused by penile curvature during erection in existing fixation methods, a flexible balloon-type fitting and conformal balloon strip positioning method is used to ensure that the pressure measuring catheter always remains coaxially aligned with the urethra, reducing patient pain and the risk of urethral mucosal damage.

[0013] 2. To address the shortcomings of traditional rigid fixation that cannot adapt to changes in penile shape, the pressure transmission of the fitting sleeve and the linkage compensation of the anti-dislodgement drive component are used to enable the pressure-measuring catheter to automatically maintain the insertion depth when the penis is elongated or bent, avoiding tissue traction or catheter dislodgement caused by relative displacement.

[0014] 3. Compared to existing technologies that only focus on preventing slippage, this solution simultaneously achieves flexible fixation, position calibration, and dynamic compensation, providing a safer and more comfortable pressure tube fixation solution for urodynamic testing.

[0015] Furthermore, the fitting element includes symmetrical fitting airbags, each of which is fixedly connected to the inner wall of the positioning collar.

[0016] Beneficial effects: By replacing the continuous annular contact surface with symmetrically arranged airbags, the compressibility and uniform gas distribution of the airbags change the fixing pressure of the positioning ring on the coronal sulcus from uniform pressure around the whole circumference to symmetrical dot matrix contact. Under the premise of ensuring the stability of the fixation, the overall radial pressure on the corpora cavernosa and urethra is reduced, and the local ischemia or nerve compression caused by excessive fixation is reduced.

[0017] Furthermore, the calibration component includes an arc-shaped follower ring, which is connected to and fixed to the end of the fitting airbag away from the positioning collar, and the inner wall of the follower ring slides in conjunction with the pressure measuring catheter.

[0018] Beneficial effects: The follower ring conforms to the outer wall of the pressure-measuring catheter with its arc surface. Taking advantage of the anatomical characteristic that the relative position of the glans penis and the urethral opening at the coronal sulcus changes very little in the erect and flaccid states, the follower ring always follows the spatial position of the urethral opening. This achieves dynamic calibration of the urethral opening, avoids relative movement between the pressure-measuring tube and the urethral opening caused by the displacement of the external fixation device, and provides radial constraint and axial guidance for the pressure-measuring tube.

[0019] Furthermore, the conformal bladder includes a connecting bladder, and symmetrical conforming air bladders are all connected to the connecting bladder. The connecting bladder has an inflation port, and the connecting bladder also has an arc-shaped bladder and several knuckle bladders. The conforming air bladders are all connected to one end of the arc-shaped bladder, and the several knuckle bladders are all arranged on the outer side wall of the arc-shaped bladder. The several knuckle bladders are evenly arranged along the length of the arc-shaped bladder and are interconnected with each other. The knuckle bladders are also all connected to the arc-shaped bladder.

[0020] Beneficial effects: When the fitting airbag deforms due to the expansion of the corpus cavernosum, the internal air pressure is transmitted through the connecting airbag to the arc-shaped airbag and the knuckle airbag, causing the knuckle airbags to expand synchronously. This causes the arc-shaped airbag to bend adaptively along its length, and the adjacent knuckle airbags form a continuous relay-style expansion support. This ensures that the arc-shaped airbag can maintain the overall wrapping and conformal fit of the glans penis in both cross-section and circumference, improves the circumferential adaptation to the urethral orifice, and reduces the compressive damage caused by traditional catheter fixation structures.

[0021] Furthermore, the guide fixing component includes a guide tube fixedly connected to the side of the follower ring away from the airbag. The guide tube is telescopically connected to the follower ring through a folding connector. A limiting groove is opened inside the guide tube, and a hollow ball-slider slides in the limiting groove. The hollow part of the ball-slider is provided with an adhesive layer. The body of the pressure measuring catheter is fixedly connected to the ball-slider through the adhesive layer.

[0022] Beneficial effects: The guide tube is telescopically connected to the follower ring via a foldable connector. The ball-slider slides within the limiting groove. The distal stop of the limiting groove limits the minimum insertion depth of the pressure-measuring catheter, while the proximal sliding of the ball-slider corresponds to the coverage compensation when the urethra elongates. This achieves dynamic limiting of the indwelling depth of the pressure-measuring catheter, preventing accidental retraction and detachment from the bladder, and allowing the catheter to automatically adjust with urethral elongation during erection, maintaining a constant insertion depth.

[0023] Furthermore, the inner diameter of the guide tube is larger than the inner diameter of the follower ring.

[0024] Beneficial effects: The stepped transition structure formed by the inner diameter difference allows the pressure-measuring catheter to obtain more radial space after it passes through the guide tube from the follower ring; it avoids the pressure-measuring catheter getting stuck or excessively rubbed against the tube wall during bending or sliding, ensuring that the ball and slider move smoothly in the limiting groove, while reducing scratch damage to the outer wall of the catheter.

[0025] Furthermore, the anti-detachment drive component includes a folded tube, which is installed in the limiting slide groove. The bottom of the folded tube can fit and contact the ball slider. One end of the folded tube is connected to an air chamber, which is fixedly connected to the guide tube and is connected to the air bladder strip.

[0026] Beneficial effects: The balloon strip transmits the pressure changes of the balloon to the air chamber, which in turn causes the folded tube to expand and contract; during normal erection, the folded tube passively compresses or extends with the ball and slider, while when the pressure measuring catheter slips abnormally, the active thrust of the folded tube conflicts with the stroke of the ball and slider, applying an auxiliary thrust to the ball and slider; when the friction between the pressure measuring tube and the urethra increases abnormally and there is a risk of dislodgement, it actively compensates for the displacement of the tube position, effectively reducing the probability of bladder pressure measuring catheter dislodgement.

[0027] Furthermore, a peristaltic pump is also connected to the connecting bag. The end of the peristaltic pump away from the connecting bag is connected to the air guide bag strip. The peristaltic pump signal is connected to a controller. Each air bag is equipped with a pressure sensor, which is connected to the controller signal. The controller is used for medical staff to input a preset fitting threshold according to the individual differences of different male patients.

[0028] The air pressure sensor monitors the real-time pressure inside the airbag, and the controller compares the preset fitting threshold with the real-time pressure to issue an adjustment command to the peristaltic pump to inflate or deflate.

[0029] Beneficial effects: The air pressure sensor monitors the pressure inside the airbag in real time, and the controller sends inflation and deflation commands to the peristaltic pump according to the preset threshold, forming a closed-loop pressure regulation system; it realizes intelligent dynamic adjustment of the fixation force, so that the fixation pressure is always maintained within a safe range that is both stable and does not cause excessive pressure, without the need for manual intervention, reducing the patient's psychological stress and physiological discomfort.

[0030] Furthermore, an elastic telescopic component is provided on the side of the guide tube away from the follower ring. The end of the elastic telescopic component away from the guide tube is fixed to the patient's pants or waist. The elastic telescopic component is used to elastically suspend the guide tube on the patient's body. The elastic telescopic component, combined with the foldable connector, allows the guide tube to adapt to changes in penile shape.

[0031] Beneficial effects: The elastic telescopic component provides a flexible suspension connection for the guide tube, while the foldable connector provides axial telescopic support. Together, they form a flexible, adaptive connection between the guide tube and the patient's body. When the length, circumference, and curvature of the penis change, the traction force and displacement are dynamically absorbed and compensated, eliminating the pain caused by friction between the urethral opening and penile skin due to the traction of the fixing component, avoiding axial tightening and compression of the coronal sulcus, and preventing the tube from dislodging due to excessive pulling.

[0032] Furthermore, each airbag comprises several integrally molded and interconnected unit airbags.

[0033] Beneficial effects: The traditional continuous strip-shaped fitting surface is decomposed into multiple independent unit capsules, which are interconnected to ensure air pressure balance; the full-circumference strip compression is dispersed into multiple local point contacts, which further reduces the overall radial compression on the corpora cavernosa and urethra while ensuring the stability of the coronal sulcus sheath. It is especially suitable for large deformations when the corpora cavernosa expands, improving the comfort of patients wearing it for a long time.

[0034] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the bladder pressure tube fixing device of the present invention;

[0036] Figure 2 This is an isometric view of the connection between the positioning collar and the conformal bladder strip in an embodiment of the bladder pressure tube fixing device of the present invention;

[0037] Figure 3 This is an axonometric sectional view of the guide tube in an embodiment of the bladder pressure tube fixing device of the present invention;

[0038] Figure 4 for Figure 3 A partial sectional view of the ball-slider structure at point A in the middle;

[0039] Figure 5 This is a front sectional view of the overall structure of an embodiment of the bladder pressure tube fixation device of the present invention;

[0040] Figure 6 This is an isometric view of the peristaltic pump after connection in an embodiment of the bladder pressure tube fixing device of the present invention.

[0041] The reference numerals in the accompanying drawings of the instruction manual include: 1. Positioning collar; 101. Ring bottom; 102. Adjustment strap; 103. Velcro; 2. Fitting airbag; 201. Unit airbag body; 3. Conformal airbag strip; 4. Follow-up ring; 5. Pressure-measuring catheter; 6. Connecting airbag; 7. Inflation port; 8. Arc-shaped airbag; 9. Knuckle airbag; 10. Guide tube; 11. Limiting groove; 12. Ball-slider; 13. Adhesive layer; 14. Airbag strip; 15. Folding tube; 16. Air chamber; 17. Peristaltic pump; 18. Elastic telescopic component. Detailed Implementation

[0042] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0045] The following detailed description illustrates the specific implementation methods:

[0046] Example 1:

[0047] This embodiment provides a bladder pressure monitoring tube fixing device, specifically as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the device includes an annular positioning collar 1, which includes an elastic ring base 101. One end of the ring base 101 is provided with an adjustment band 102, and the adjustment band 102 is provided with Velcro 103. The hook side of the Velcro 103 is sewn and fixed to the end of the adjustment band 102, and the rough side of the Velcro 103 is located at the other end of the ring base 101 away from the adjustment band 102. The ring base 101 is wrapped around the coronal sulcus of the patient's penis, and the hook side of the Velcro 103 is glued to the rough side of the Velcro 103 by stretching the adjustment band 102, thereby locking the ring diameter to fix the positioning collar 1 to the coronal sulcus, adapting to the personalized differences in the radial size of the penis of different patients.

[0048] The inner wall of the ring base 101 is provided with a fitting element, which includes fitting airbags 2 symmetrically arranged along the central axis of the ring base 101. Each fitting airbag 2 is fixedly connected to the ring base 101. A conforming airbag 3 is connected to the fitting airbag 2. The conforming airbag 3 is used to fit the patient's glans penis and deforms according to the changes in the glans penis. A tube calibration element is provided at the end of the conforming airbag 3 away from the fitting airbag 2. The tube calibration element includes an arc-shaped follower ring 4. A pressure-measuring catheter 5 is inserted inside the follower ring 4. The inner wall of the follower ring 4 slides in conjunction with the pressure-measuring catheter 5. Based on this, the fitting calibration of the follower ring 4 and the pressure-measuring catheter 5 is... The spatial position of the patient's urethral opening is determined, and taking advantage of the anatomical characteristic that the relative position between the glans penis and the urethral opening at the coronal sulcus changes very little between the erect and flaccid states, the follower ring 4 can maintain its relative positioning with the urethral opening when the penis undergoes morphological changes. This reduces the relative movement between the pressure-measuring catheter 5 and the urethral opening caused by the displacement of the external fixation device relative to the penis, thereby reducing the patient's pain caused by this. At the same time, the follower ring 4 can provide radial constraint and axial guidance limit for the pressure-measuring catheter 5 inserted within it, laying the foundation for the subsequent guidance of the pressure-measuring catheter 5.

[0049] The conformal sac strip 3 includes a connecting sac 6, and symmetrical conforming airbags 2 are all connected to the connecting sac 6. The connecting sac 6 has an inflation port 7. The connecting sac 6 also has an arc-shaped sac 8 and several knuckle sacs 9. Each conforming airbag 2 is connected to one end of the arc-shaped sac 8. Several knuckle sacs 9 are evenly distributed on the outer wall of the arc-shaped sac 8, and each knuckle sac 9 is connected to the arc-shaped sac 8, similar to the structure of a flexible airbag gripper. When the conforming airbag 2 deforms due to the expansion of the corpora cavernosa and the internal air pressure signal changes, the air pressure inside the arc-shaped sac 8 is released through… The connecting channel conducts evenly to several phalangeal sacs 9, causing each phalangeal sac 9 to expand synchronously, so that the arc-shaped sac 8 produces an adaptive curvature along the shape of the glans penis in the length direction; at the same time, adjacent phalangeal sacs 9 form a continuous relay expansion support through flexible walls, ensuring that the arc-shaped sac 8 can maintain overall wrapping and conformal fit to the glans penis in both the cross-sectional direction and along the circumference of the penis; this not only improves the circumferential adaptation of the calibrated patient's urethral orifice, but also reduces the risk of compressive damage caused by traditional catheter fixation structures.

[0050] The follower ring 4 is provided with a guide fixing component on the side away from the fitting airbag 2. The guide fixing component includes a guide tube 10 fixedly connected to the side of the follower ring 4 away from the fitting airbag 2. The guide tube 10 is telescopically connected to the follower ring 4 through a foldable connector (preferably a telescopic foldable connector). The inner diameter of the guide tube 10 is larger than the inner diameter of the follower ring 4. A limiting groove 11 is opened in the guide tube 10. A hollow ball-slider 12 is slidably fitted in the limiting groove 11. The hollow part of the ball-slider 12 is provided with an adhesive layer 13. After the medical staff inserts the pressure measuring catheter 5, they fix the ball-slider 12 onto the pressure measuring catheter 5 through the adhesive layer 13 according to the different penile sizes of different patients.

[0051] In this embodiment, the sliding cooperation between the ball-slider 12 and the limiting groove 11 enables dynamic limiting of the indwelling depth of the pressure-measuring catheter 5 in the patient's body. Specifically: the bottom of the limiting groove 11 on the side away from the balloon 2 forms the distal stop of the ball-slider 12. The distal stop limits the minimum insertion depth of the pressure-measuring catheter 5 in the patient's body, ensuring that the pressure-measuring catheter 5 will not be dislodged from the bladder due to accidental retraction under any circumstances. When the patient's corpus cavernosum expands, causing the urethra to elongate, the elongated urethra exerts a relative covering effect on the pressure-measuring catheter 5 proximally (i.e. towards the balloon 2). The ball-slider 12 is allowed to slide along the limiting groove 11 towards the side closer to the balloon 2, thereby allowing the guide tube 10 and the follower ring 4 to crawl proximally along the pressure-measuring catheter 5 to compensate for the increased coverage distance due to urethral elongation and maintain a constant insertion depth of the pressure-measuring catheter 5 relative to the patient's bladder. The foldable connecting tube extends and retracts synchronously during this sliding process, maintaining the airtightness and guiding continuity between the follower ring 4 and the guide tube 10.

[0052] The airbag 2 is also connected to an air guide strip 14. The end of the air guide strip 14 away from the airbag 2 is connected to an anti-detachment drive component. The anti-detachment drive component includes a folding tube 15. The folding tube 15 is installed in the limiting slide groove 11. One end of the folding tube 15 is connected to an air guide chamber 16. The air guide chamber 16 is fixedly connected to the guide tube 10 and is connected to the air guide strip 14.

[0053] Under normal conditions, when the patient's corpora cavernosa expands, causing urethral elongation and increasing the distance the penis covers the pressure-measuring catheter 5, the folded tube 15 will receive gas transmitted from the balloon 2 and thus elongate, allowing the ball-slider 12 to slide closer to the balloon 2 within the limiting groove 11 (the ball-slider 12 slides passively under the effect of the patient's urethral elongation). However, when the friction between the pressure-measuring catheter 5 and the patient's urethra is abnormal (i.e., when the pressure-measuring catheter 5 slips distally relative to the urethra and there is a risk of detachment from the bladder), the pressure change transmitted by the balloon strip 14 (causing the elongation of the folded tube 15) will conflict with the sliding process of the ball-slider 12. At this time, the elongation of the folded tube 15 will apply an auxiliary propulsive force to the ball-slider 12, driving the ball-slider 12 to continue to move towards the balloon 2 along the limiting groove 11, compensating for the undesirable displacement of the pressure-measuring catheter 5 and reducing the risk of the pressure-measuring catheter 5 dislodging from the bladder.

[0054] Example 2:

[0055] As attached Figure 6 As shown, the difference from Embodiment 1 is that a peristaltic pump 17 is also connected to the connecting pouch 6. The end of the peristaltic pump 17 away from the connecting pouch 6 is connected to the air guide strip 14. The peristaltic pump 17 is signal-connected to a controller. Each of the fitting airbags 2 is equipped with a pressure sensor, and the pressure sensor is signal-connected to the controller. The pressure sensor monitors the pressure change in the fitting airbag 2 in real time and feeds the pressure signal back to the controller. The controller issues inflation or deflation commands to the peristaltic pump 17 according to the preset pressure threshold and the patient's actual erection cycle, thereby realizing intelligent dynamic adjustment of the penile sheathing force.

[0056] Specifically, when the patient's penis expands due to erection of the corpora cavernosa, the air pressure inside the airbag 2 increases accordingly. When the air pressure sensor detects that the air pressure rises beyond the preset comfort upper limit, the controller instructs the peristaltic pump 17 to pump part of the gas connected to the airbag into the air guide strip 14 to reduce the pressure used for securing the penis. When the penis retracts and the airbag pressure falls below the preset lower limit, the controller instructs the peristaltic pump 17 to inflate the airbag to restore the appropriate securing force. This cycle repeats, ensuring that the securing force is always maintained within a safe range that is both stable and secure without causing excessive pressure.

[0057] Example 3:

[0058] As attached Figure 1 and Figure 5As shown, the difference from Embodiment 2 is that an elastic telescopic member 18 (preferably a helical spring strip) is provided on the side of the guide tube 10 away from the follower ring 4. The end of the elastic telescopic member 18 away from the guide tube 10 is fixed to the patient's pants or waist. The elastic telescopic member 18 is used to elastically suspend the guide tube 10 to the patient's body. The elastic telescopic member 18, combined with the folding connector, allows the guide tube 10 to adapt to changes in penile shape. Through the synergistic effect of the elastic suspension of the elastic telescopic member 18 and the telescopic folding of the folding connector, a flexible follower connection is formed between the guide tube 10 and the patient's body (pants or waist), so that the penis in a normal state... When changes in length, circumference, and curvature occur between the erect and erect states, the resulting traction and displacement can be dynamically absorbed and compensated by the stretching and retraction of the elastic telescopic member 18 and the axial expansion and contraction of the folding connector. Compared to the forced relative displacement between the fixing device and the penis in traditional rigid fixing structures, the solution proposed in this embodiment allows the guide tube 10 to always float and follow the natural movement of the penis. This eliminates the pain caused by friction between the urethral opening and penile skin due to the pulling of the fixing member, avoids axial tightening and compression of the coronal sulcus by the guide tube 10 as the penis elongates, and also prevents the connecting pipe from accidentally dislodging from the pressure measuring system due to excessive pulling.

[0059] Example 4:

[0060] As attached Figure 2 As shown, the difference from Embodiment 3 is that the fitting airbag 2 includes several integrally formed and interconnected unit airbags 201; compared with the existing and conventional penile fixation technology (with a continuous strip-shaped fitting surface), this embodiment uses a symmetrical fitting fixation composed of several unit airbags 201 to disperse the full-circumference strip pressure into multiple local point contacts, which reduces the overall radial pressure on the corpora cavernosa and urethra while ensuring the stability of the coronal sulcus fixation, and is especially suitable for the deformation of the corpora cavernosa when the patient's corpora cavernosa expands.

[0061] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A bladder pressure monitoring tube fixing device, comprising an annular positioning collar (1), the positioning collar (1) being capable of being secured to the coronal sulcus of a male patient's penis, characterized in that, The inner wall of the positioning collar (1) is provided with a fitting pouch. The fitting pouch achieves flexible fitting and fixation with the patient's penis through gas exchange. The fitting pouch can deform in accordance with the shape changes of the corpus cavernosum. The fitting is connected to a conformal balloon strip (3). A tube calibration element is provided at the end of the conformal balloon strip (3) away from the fitting. A pressure-measuring catheter (5) is inserted inside the tube calibration element. The tube calibration element is used to limit and calibrate the position of the pressure-measuring catheter (5) relative to the patient's urethral opening. A guide fixing component is provided on one side of the tube calibration component. The guide fixing component is sleeved on the tube body of the pressure measuring catheter (5). The guide fixing component restricts the direction of the tube body of the pressure measuring catheter (5) and restricts the axial distance between the pressure measuring catheter (5) and the patient's urethral opening, thereby fixing the pressure measuring catheter (5). The fitting bag is also connected to an air guide strip (14). The end of the air guide strip (14) away from the fitting bag (2) is connected to an anti-detachment drive. The anti-detachment drive adjusts the relative distance between the pressure measuring catheter (5) and the patient's urethral opening according to the air pressure change of the fitting bag.

2. The bladder pressure monitoring tube fixing device according to claim 1, characterized in that, The fitting element includes symmetrical fitting airbags (2), and the fitting airbags (2) are fixedly connected to the inner wall of the positioning collar (1).

3. The bladder pressure monitoring tube fixing device according to claim 2, characterized in that, The calibration component includes an arc-shaped follower ring (4), which is connected to and fixed to the end of the fitting airbag (2) away from the positioning sleeve (1). The inner wall of the follower ring (4) slides with the pressure measuring catheter (5).

4. The bladder pressure monitoring tube fixing device according to claim 3, characterized in that, The conformal bladder strip (3) includes a connecting bladder (6), and symmetrical fitting air bladders (2) are all connected to the connecting bladder (6). An inflation port (7) is provided on the connecting bladder (6). The connecting bladder (6) is also provided with an arc-shaped bladder (8) and several knuckle bladders (9). The fitting air bladders (2) are all connected to one end of the arc-shaped bladder (8). Several knuckle bladders (9) are all arranged on the outer side wall of the arc-shaped bladder (8), and several knuckle bladders (9) are evenly arranged along the length direction of the arc-shaped bladder (8) and are connected to each other. The knuckle bladders (9) are also connected to the arc-shaped bladder (8).

5. The bladder pressure monitoring tube fixing device according to claim 4, characterized in that, The guide fixing component includes a guide tube (10) fixedly connected to the side of the follower ring (4) away from the airbag (2). The guide tube (10) is telescopically connected to the follower ring (4) through a folding connector. A limiting groove (11) is opened in the guide tube (10). A hollow ball-slider (12) is slidably fitted in the limiting groove (11). The hollow part of the ball-slider (12) is provided with an adhesive layer (13). The tube body of the pressure measuring catheter (5) is fixedly connected to the ball-slider (12) through the adhesive layer (13).

6. The bladder pressure monitoring tube fixing device according to claim 5, characterized in that, The inner diameter of the guide tube (10) is larger than the inner diameter of the follower ring (4).

7. The bladder pressure monitoring tube fixing device according to claim 6, characterized in that, The anti-detachment drive component includes a folded tube (15), which is installed in the limiting slide groove (11). The bottom of the folded tube (15) can fit and contact the ball slider (12). One end of the folded tube (15) is connected to an air chamber (16), which is fixedly connected to the guide tube (10). The air chamber (16) is connected to the air bag strip (14).

8. The bladder pressure monitoring tube fixing device according to claim 7, characterized in that, A peristaltic pump (17) is also connected to the connecting bag (6). The end of the peristaltic pump (17) away from the connecting bag (6) is connected to the air guide bag strip (14). The peristaltic pump (17) is connected to the controller. Each of the fitting air bags (2) is equipped with a pressure sensor. The pressure sensor is connected to the controller. The controller is used for medical staff to input a preset fitting threshold according to the individual differences of different patients. The air pressure sensor monitors the real-time pressure inside the fitting airbag (2) and the controller compares the preset fitting threshold with the real-time pressure to transmit an inflation or deflation adjustment command to the peristaltic pump (17).

9. The bladder pressure monitoring tube fixing device according to claim 8, characterized in that, An elastic telescopic member (18) is provided on the side of the guide tube (10) away from the follower ring (4). The end of the elastic telescopic member (18) away from the guide tube (10) is fixed to the patient's pants or waist. The elastic telescopic member (18) is used to elastically suspend the guide tube (10) on the patient's body. The elastic telescopic member (18) combined with the folding connector allows the guide tube (10) to undergo adaptive displacement as the shape of the penis changes.

10. The bladder pressure monitoring tube fixing device according to claim 9, characterized in that, Each of the fitted airbags (2) includes several integrally formed and interconnected unit airbags (201).

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