Female urinary catheter and structural member thereof

Abstract

A female urinary catheter and a structural member thereof. The female urinary catheter comprises a urinary catheter body (1), a petal-type fixing member (2), an obstruction-plate-type fixing member (3), a tube body sealing member (4) and a urinary catheter valve (5), wherein a urine guide channel (11) is provided in the urinary catheter body (1) in a penetrating manner, an annular groove (12) is formed in the inner wall of the tube body of the urinary catheter body (1) in the circumferential direction, the tube body sealing member (4) and the petal-type fixing member (2) are both made of an elastic material, and the tube body sealing member (4) is arranged on the outer wall of the tube body of the urinary catheter body (1) and corresponds to the annular groove (12) in terms of position; the petal-type fixing member (2) is fixed around the end portion of an insertion end of the urinary catheter body (1) in the circumferential direction of the urinary catheter body (1); the obstruction-plate-type fixing member (3) is sleeved on the end portion of a urine discharge end of the urinary catheter body (1); and the urinary catheter valve (5) is fixedly arranged at the end portion of the urine discharge end of the urinary catheter body (1), so as to control the connection and disconnection of the urine guide channel (11) in the urinary catheter body (1) by means of manually operating the urinary catheter valve (5). The structural member comprises the urinary catheter valve (5), and further comprises the petal-type fixing member (2) or an umbrella-shaped anti-detachment member (7).

Description

A female urinary catheter and its structural components Technical Field

[0001] This utility model relates to the field of medical technology, and in particular to a female urinary catheter and its structural components. Background Technology

[0002] Female urinary catheters are widely used in clinical practice, mainly for patients with urethral sphincter relaxation or urinary nerve damage, enabling them to control and expel urinary fluid. However, current catheters typically require the patient to wear a urine bag, causing inconvenience; the catheter's adhesion to the urethral wall is unstable, easily leading to leakage; and the shorter female urethra makes it difficult to secure and prone to slippage.

[0003] In other words, how to provide a new female urinary catheter and its structural components for insertion into the female urethra to achieve controllable urination, so as to achieve the technical effect of simple structure and convenient operation, is a technical problem that urgently needs to be solved by those skilled in the art.

[0004] Utility Model Content

[0005] In view of the above-mentioned problems, the present invention aims to provide a female urinary catheter and its structural components, thereby solving at least one of the above-mentioned technical problems.

[0006] In a first aspect, this utility model provides a female urinary catheter, the female urinary catheter comprising:

[0007] The catheter body has a catheter channel running through it, and an annular groove is formed on the inner side wall of the catheter body along the circumferential direction.

[0008] A petal-shaped fixing member is fixed around the insertion end of the catheter body in the circumferential direction.

[0009] A baffle-type fixing component is sleeved on the urination end of the catheter body;

[0010] A tube body seal is disposed on the outer wall of the catheter body and corresponds to the position of the annular groove;

[0011] A urinary catheter valve is fixedly disposed at the end of the urination end of the urinary catheter body, and a baffle-type fixing member is located between the urinary catheter valve and the urinary catheter body. The urinary catheter valve is used to control the opening and closing of the urinary catheter channel within the urinary catheter body.

[0012] Both the tube body seal and the petal-shaped fastener are made of elastic material.

[0013] Preferably, the baffle-type fixing member has an elliptical structure, and a fixing hole is provided through the center of the elliptical structure. The inner diameter of the fixing hole is adapted to the outer diameter of the catheter body. The elliptical structure is sleeved on the periphery of the urination end of the catheter body through the fixing hole.

[0014] Preferably, the petal-shaped fixing member includes a plurality of fan-shaped blades, which are spaced apart along the circumferential direction of the catheter body at the insertion end of the catheter body.

[0015] Preferably, the tube body seal is an annular protrusion structure, the outer diameter of which is larger than the outer diameter of the catheter body, and the size of which is adapted to the dilation size of the female urethra.

[0016] Preferably, the inner wall of the insertion end of the catheter body is provided with a plurality of strip-shaped grooves of a predetermined length, the strip-shaped grooves being formed by extending a predetermined length from the end of the insertion end toward the urination end.

[0017] Preferably, in one aspect, the urinary catheter valve includes:

[0018] The elastic valve body has one end fixedly connected to the end of the urination end of the catheter body. The elastic valve body is provided with a spherical cavity. The side wall of the elastic valve body is provided with a hemispherical groove. The spherical cavity and the hemispherical groove are connected. The elastic valve body is also provided with an opening and closing channel along its length, which is connected to the urination channel. The opening and closing channel is provided through the spherical cavity.

[0019] A spherical bead, wherein the spherical bead is movably disposed within the spherical cavity;

[0020] An elastic sleeve is sleeved around the periphery of the elastic valve body;

[0021] The spherical cavity is adapted to the size of the bead, and the outer diameter of the opening and closing channel is smaller than the outer diameter of the spherical cavity.

[0022] Preferably, the beads are made of biosafety compliant materials.

[0023] Preferably, the inner sidewalls at both ends of the elastic sleeve are provided with a limiting protrusion along the circumferential direction of the elastic sleeve, and the outer sidewalls of the elastic valve body are provided with a limiting groove at both ends along the circumferential direction, and the limiting protrusions are engaged with the limiting grooves.

[0024] Preferably, the catheter body, the petal-shaped fixation member, the baffle-shaped fixation member, the tube body seal, and the elastic valve body are integrally formed and all are made of elastic materials that meet biosafety standards.

[0025] Preferably, on the other hand, the urinary catheter valve includes:

[0026] The control valve body has one end fixedly connected to the end of the urination end of the catheter body. The control valve body is provided with a spherical groove. The side wall of the control valve body extends outward to form a spherical cavity. The spherical cavity and the spherical groove are connected. The control valve body is also provided with a urination channel connected to the catheter channel along its length. The urination channel passes through the spherical cavity.

[0027] A movable ball, which is movably disposed within the spherical groove;

[0028] The spherical groove is adapted to the size of the moving ball, and the outer diameter of the urination channel is smaller than the outer diameter of the spherical groove.

[0029] Secondly, this utility model also provides a female urinary catheter, which includes:

[0030] The catheter body has a catheter channel extending through it along its length.

[0031] An umbrella-shaped anti-dislodgement device has a guide wire contact end at the top and a guide wire holding cavity inside. The opening end of the guide wire holding cavity is fixedly connected to the insertion end of the catheter body. A urine inlet is provided on the side wall of the umbrella-shaped anti-dislodgement device.

[0032] A baffle-type fixing component is sleeved around the urination end of the catheter body;

[0033] A urinary catheter valve is fixedly disposed at the end of the urination end of the urinary catheter body, and the baffle-type fixing member is located between the urinary catheter valve and the urinary catheter body;

[0034] A traction guide wire is provided independently of the catheter body. One end of the traction guide wire passes through the catheter channel in sequence, and after the guide wire abuts against the cavity, it abuts against the end of the guide wire.

[0035] The umbrella-shaped anti-dislodgement component is made of elastic material, and the guide wire abutment cavity, the urinary catheter channel and the urinary inlet are connected; the outer diameter of the umbrella-shaped anti-dislodgement component in its natural state is larger than the outer diameter of the urinary catheter body, and the outer diameter of the umbrella-shaped anti-dislodgement component in its deformed state is equivalent to the outer diameter of the urinary catheter body.

[0036] Preferably, the baffle-type fixing member has an elliptical structure, and a fixing hole is provided through the center of the elliptical structure. The inner diameter of the fixing hole is adapted to the outer diameter of the catheter body. The elliptical structure is sleeved on the periphery of the urination end of the catheter body through the fixing hole.

[0037] The inner wall of the catheter body has an annular groove along its circumferential direction; a tube seal is provided on the outer wall of the catheter body, the tube seal is positioned corresponding to the annular groove, the tube seal is an annular protrusion structure, the outer diameter of the annular protrusion structure is larger than the outer diameter of the catheter body, and the size of the annular protrusion structure is adapted to the dilation size of the female urethra.

[0038] Preferably, the urinary catheter valve comprises:

[0039] The control valve body has one end fixedly connected to the urination end of the catheter body. The control valve body is provided with a spherical groove. The side wall of the control valve body extends outward to form a spherical cavity. The spherical cavity and the spherical groove are connected. The control valve body is provided with a urination channel that is connected to the catheter channel along its length. The urination channel passes through the spherical groove.

[0040] A movable ball, which is movably disposed within the spherical groove;

[0041] The spherical groove is in interference contact with the moving ball, and the outer diameter of the urination channel is smaller than the outer diameter of the spherical groove.

[0042] Preferably, the catheter body, the umbrella-shaped anti-dislodgement component, the baffle-type fixing component, the tube body sealing component, and the control valve body are integrally formed and are all made of elastic materials that meet biosafety standards.

[0043] Thirdly, this utility model also provides a structural component for a female urinary catheter, the female urinary catheter including a catheter body, the catheter body being provided with a urinary channel, the structural component including: a urinary valve, the urinary valve being disposed at the urination end of the catheter body; the structural component further including:

[0044] A petal-shaped fixing member is provided around the insertion end of the catheter body in the circumferential direction.

[0045] or,

[0046] An umbrella-shaped anti-dislodgement device has a guidewire contact end and a guidewire holding cavity inside. The opening end of the guidewire holding cavity is connected to the insertion end of the catheter body. A urine inlet is provided on the umbrella-shaped anti-dislodgement device. The guidewire holding cavity, the catheter channel, and the urine inlet are connected.

[0047] Compared with the prior art, the beneficial effects of this utility model are:

[0048] Specifically, this utility model provides a female urinary catheter, including a catheter body, a petal-shaped fixing component, a baffle-shaped fixing component, a tube body seal, and a urinary valve. A urinary channel is provided through the catheter body. An annular groove is formed on the inner wall of the catheter body along its circumferential direction. Both the tube body seal and the petal-shaped fixing component are made of elastic material. The tube body seal is located on the outer wall of the catheter body and corresponds to the position of the annular groove, allowing it to fit snugly against the urethral wall for a sealing effect. Simultaneously, the annular groove provides compression space for the tube body seal, preventing continuous pressure injury to the urethral wall. The petal-shaped fixing member is fixed around the insertion end of the catheter body in the circumferential direction, so as to lock the catheter to the patient's bladder orifice and prevent the catheter from slipping out; the baffle-shaped fixing member is sleeved on the urination end of the catheter body, so as to lock the catheter to the urethral orifice and prevent the catheter from retracting inward and slipping into the bladder; the catheter valve is fixedly set at the urination end of the catheter body, and the baffle-shaped fixing member is located between the catheter valve and the catheter body. The catheter valve is placed outside the patient's body and can be hidden inside the female labia. The opening and closing of the catheter channel inside the catheter body can be controlled by manually operating the catheter valve. This application has a simple structure and is easy to operate.

[0049] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0050] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0051] Figure 1 is a schematic diagram of the female urinary catheter during urination in Embodiment 1 of this application;

[0052] Figure 2 is a schematic diagram of the structure of the female catheter for controlling urination in Embodiment 1 of this application;

[0053] Figure 3 is a three-dimensional structural diagram of the female urinary catheter in Embodiment 1 of this application;

[0054] Figure 4 is a schematic diagram of another type of urinary catheter valve in Embodiment 1 of this application during urination;

[0055] Figure 5 is a schematic diagram of another type of urinary catheter valve used for urination control in Embodiment 1 of this application;

[0056] Figure 6 is a schematic diagram of the combined structure of the female urinary catheter and guidewire in Embodiment 2 of this application;

[0057] Figure 7 is a schematic diagram of the deformation of the female urinary catheter during delivery in Embodiment 2 of this application;

[0058] Figure 8 is a schematic diagram of the female urinary catheter in Embodiment 2 of this application;

[0059] Figure 9 is a cross-sectional view of the female urinary catheter in Embodiment 2 of this application;

[0060] Figure 10 is a schematic diagram of the structure of the guide wire in Embodiment 2 of this application.

[0061] Reference numerals: 1. Catheter body; 11. Catheter channel; 12. Annular groove; 13. Strip groove; 2. Petal-shaped fixation element; 21. Fan-shaped blade; 3. Baffle-type fixation element; 4. Tube body seal; 5. Catheter valve; 51. Elastic valve body; 511. Spherical cavity; 512. Hemispherical groove; 513. Opening and closing channel; 514. Limiting groove; 52. Ball; 53. Elastic sleeve; 531. Limiting protrusion; 61. Control valve body; 611. Spherical groove; 612. Spherical cavity; 613. Drainage channel; 62. Moving ball; 7. Umbrella-shaped anti-dislodgement element; 71. Guidewire contact end; 72. Guidewire holding cavity; 73. Urine inlet; 8. Guidewire pull. Detailed Implementation

[0062] The technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this specification, and not all of the embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art are within the scope of protection of this utility model; wherein the keyword "and / or" involved in this embodiment indicates two situations, and or. In other words, A and / or B mentioned in the embodiments of this specification indicates two situations, A and B, and A or B, describing three states of A and B. For example, A and / or B means: only A is included and not B; only B is included and not A; and A and B are included.

[0063] Furthermore, in the embodiments of this specification, when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component present. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component present.

[0064] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0065] Example 1

[0066] Please refer to Figures 1-3. Specifically, in this embodiment of the female urinary catheter, the female urinary catheter provided in this application is used to insert into the female urethra to achieve controllable urination. The female urinary catheter specifically includes a catheter body 1, a petal-shaped fixing member 2, a baffle-shaped fixing member 3, a tube body sealing member 4, and a urinary catheter valve 5. A urinary catheter channel 11 is provided through the catheter body 1. An annular groove 12 is formed on the inner side wall of the catheter body 1 along the circumferential direction of the catheter body 1. The petal-shaped fixing member 2 surrounds the catheter body 1 along the circumferential direction. The catheter body 1 is fixed at the insertion end; the baffle-type fixing member 3 is sleeved on the urination end of the catheter body 1; the tube body sealing member 4 is disposed on the outer wall of the tube body of the catheter body 1 and corresponds to the position of the annular groove 12; the catheter valve 5 is fixedly disposed at the urination end of the catheter body 1, the baffle-type fixing member 3 is located between the catheter valve 5 and the catheter body 1, and the catheter valve 5 is used to control the opening and closing of the catheter channel 11 in the catheter body 1. The tube body sealing member 4 and the petal-type fixing member 2 are both made of elastic material.

[0067] Specifically, this utility model embodiment provides a female urinary catheter, including a catheter body 1, a petal-shaped fixing member 2, a baffle-shaped fixing member 3, a tube body sealing member 4, and a urinary catheter valve 5. A urinary catheter channel 11 is provided through the catheter body 1. An annular groove 12 is formed on the inner side wall of the catheter body 1 along the circumferential direction. The tube body sealing member 4 and the petal-shaped fixing member 2 are both made of elastic material to facilitate their retraction under external force, thus facilitating insertion into the female urethra. The tube body sealing member 4 is disposed on the outer side wall of the catheter body 1 and corresponds to the position of the annular groove 12, so that the tube body sealing member 4 fits against the urethral wall to achieve a sealing effect. Simultaneously, the annular groove 12 provides compression space for the tube body sealing member 4, which can prevent… The non-continuous pressure injury to the urethral wall caused by the tube body seal 4 is prevented; the petal-shaped fixation 2 is fixed around the insertion end of the catheter body 1 in the circumferential direction, so as to lock the catheter to the patient's bladder orifice through the petal-shaped fixation 2, thus preventing the catheter from slipping out; the baffle-shaped fixation 3 is sleeved on the urination end of the catheter body 1, so as to lock the catheter to the urethral orifice through the baffle-shaped fixation 3, thereby preventing the catheter from retracting inward and slipping into the bladder; the catheter valve 5 is fixedly set at the urination end of the catheter body 1, and the baffle-shaped fixation 3 is located between the catheter valve 5 and the catheter body 1. The catheter valve 5 is left outside the patient's body and can be hidden inside the female labia, so as to control the opening and closing of the catheter channel 11 in the catheter body 1 by manually operating the catheter valve 5. This application has a simple structure and is easy to operate.

[0068] The female urinary catheter of this application can be compressed and loaded into a tear-away sheath. Therefore, both the tube body seal 4 and the petal-shaped fixing member 2 of this application need to be designed as elastic structures to facilitate compression and loading into the tear-away sheath. In use, the tear-away sheath is inserted through the urethral opening into the bladder opening, and the catheter is pushed using a push rod. Simultaneously, the tear-away sheath is torn open and retracted, allowing the petal-shaped fixing member 2 to be released at the bladder opening. The position is adjusted appropriately, and the sheath is continued to be retracted until the baffle is anchored at the urethral opening. The position of the catheter is thus fixed by the petal-shaped fixing member 2 and the baffle fixing member 3.

[0069] In one possible implementation, the baffle-type fixing member 3 can be configured as an elliptical structure with a fixing hole through the center of the elliptical structure. The inner diameter of the fixing hole is adapted to the outer diameter of the catheter body 1. The elliptical structure is fitted around the end of the urination end of the catheter body 1 through the fixing hole, so as to be locked at the urethral opening by the elliptical structure to prevent the catheter from retracting inward and slipping into the bladder. The elliptical structure can reduce the width of the left and right sides of the baffle-type fixing member 3, so as to hide the baffle-type fixing member 3 inside the labia, thereby reducing the compression of the labia from the left and right sides. At the same time, the narrow and long shape of the elliptical structure is more in line with the physiological structure of the female vulva, can be covered by tissue, reduce the feeling of foreign body, and can also be axially positioned without arbitrary rotation angle.

[0070] In one possible implementation, the petal-shaped fixing member 2 includes a plurality of fan-shaped blades 21, which are spaced apart at the insertion end of the catheter body 1 along the circumferential direction.

[0071] Furthermore, the inner wall of the insertion end of the catheter body 1 is provided with several strip-shaped grooves 13 of a preset length, which are formed by extending the insertion end to the urination end by a preset length.

[0072] Specifically, the petal-shaped fixing member 2 is configured to include several fan-shaped blades 21, with the fan-shaped blades 21 spaced apart, leaving gaps between adjacent fan-shaped blades 21 to facilitate folding under external force. Under external force, the petal-shaped fixing member 2 is in a contracted state, with a diameter smaller than the diameter of the urethra. In its natural state, it is in an open state, with a diameter larger than the diameter of the urethra and bladder opening. Several pre-defined grooves 13 of a predetermined length are formed on the inner wall of the insertion end of the catheter body 1 to facilitate the contraction of the petal-shaped fixing member 2. The predetermined length is much smaller than the length of the catheter body 1. By setting the grooves, sufficient deformation space is provided for the petal-shaped fixing member to fold and overlap during delivery. Furthermore, the connection strength between the petals and the main body can be adjusted by the width of the grooves, thereby adjusting the fixing strength of the petals within the body.

[0073] In one possible implementation, the tube body seal 4 is an annular protrusion structure. The outer diameter of the annular protrusion structure is larger than the outer diameter of the catheter body 1. The size of the annular protrusion structure is adapted to the dilation size of the female urethra so that it can fit tightly against the urethral wall and play a sealing role to prevent urine leakage.

[0074] In one possible implementation, the urinary catheter valve 5 includes an elastic valve body 51, a ball 52, and an elastic sleeve 53. One end of the elastic valve body 51 is fixedly connected to the end of the urination end of the catheter body 1. A spherical cavity 511 is provided inside the elastic valve body 51. A hemispherical groove 512 is formed inward on the side wall of the elastic valve body 51. The spherical cavity 511 and the hemispherical groove 512 are connected. An opening and closing channel 513 communicating with the urinary catheter channel 11 is also provided through the elastic valve body 51 along its length. The opening and closing channel 513 is provided through the spherical cavity 511. The ball 52 is movably disposed inside the spherical cavity 511. The elastic sleeve 53 is sleeved on the periphery of the elastic valve body 51. The spherical cavity 511 and the ball 52 are adapted to each other in size. The outer diameter of the opening and closing channel 513 is smaller than the outer diameter of the spherical cavity 511.

[0075] Specifically, when the elastic valve body 51 is subjected to pressure on both sides or the opposite side of the hemispherical groove 512, the ball 52 enters the hemispherical groove 512 from the spherical cavity 511 and pushes up the elastic sleeve 53. At the same time, the opening and closing channel 513 in the elastic valve body 51 opens to achieve the urination function. When urination is completed, the protruding position of the elastic sleeve 53 is squeezed, and the ball 52 is pressed back into the spherical cavity 511 in the elastic valve body 51. The ball 52 adheres to the side wall of the spherical cavity 511 and blocks and closes the opening and closing channel 513 in the middle to achieve the urination control effect.

[0076] In one possible implementation, each end of the inner wall of the elastic sleeve 53 has a limiting protrusion 531 along the circumferential direction, and each end of the outer wall of the elastic valve body 51 has a limiting groove 514 along the circumferential direction. The limiting protrusions 531 and the limiting grooves 514 are engaged. The engagement between the limiting protrusions 531 and the limiting grooves 514 limits the elastic sleeve 53, preventing displacement or detachment of the elastic sleeve 53 when the ball 52 is squeezed from the spherical cavity 511 into the hemispherical groove 512, causing deformation of the elastic sleeve 53.

[0077] In one possible implementation, the surface of the ball 52 is smooth and can be made of a biosafety compliant material, such as polytetrafluoroethylene, quartz glass, polyethylene, or stainless steel. The body of the ball can be made of silicone, latex, or elastic materials such as TPU or TPE to ensure safety while reducing the weight of the ball 52 and improving the comfort of use.

[0078] In one possible implementation, the catheter body 1, the petal-shaped fixation member 2, the baffle-shaped fixation member 3, the tube body seal member 4, and the elastic valve body 51 are integrally molded and all made of a biosafety compliant elastic material, specifically silicone, to simplify the overall structure while improving the comfort of use.

[0079] As an alternative, this application provides another structural design for the catheter valve, as shown in Figures 4-5. The catheter valve is configured to include a control valve body 61 and a movable ball 62. One end of the control valve body 61 is fixedly connected to the end of the urination end of the catheter body 1. A spherical groove 611 is provided inside the control valve body 61. The side wall of the control valve body 61 extends outward to form a spherical cavity 612. The spherical cavity 612 and the spherical groove 611 are connected. A urination channel 613, which is connected to the catheter channel 11, is also provided through the control valve body 61 along its length. The urination channel 613 is provided through the spherical cavity 511. The movable ball 62 is movably disposed in the spherical groove 611. The spherical groove 611 and the movable ball 62 are adapted to each other in size. The outer diameter of the urination channel 613 is smaller than the outer diameter of the spherical groove 611.

[0080] Specifically, when the opposite side of the spherical cavity 612 of the control valve body 61 is subjected to compressive force, the moving ball 62 enters the spherical cavity 612 from the spherical groove 611, thereby opening the urination channel 613 in the control valve body 61 and achieving the urination function. A specific structural example is shown in Figure 5. When urination is completed, the moving ball 62 in the spherical cavity 612 is squeezed and pushed back into the spherical groove 611 in the control valve body 61. The moving ball 62 adheres to the side wall of the spherical groove 611, blocking and closing the urination channel 613 in the middle, thereby achieving the urination control effect. A specific structural example is shown in Figure 4.

[0081] Among them, the catheter body 1, petal-shaped fixation component 2, baffle-shaped fixation component 3, tube body sealing component 4, and control valve body 61 are integrally molded and all made of elastic materials that meet biosafety standards, specifically silicone, to simplify the overall structure while improving the comfort of use.

[0082] Example 2

[0083] This embodiment also provides a female urinary catheter, as shown in Figures 6-10. The female urinary catheter provided in this embodiment includes: a catheter body 1, an umbrella-shaped anti-dislodgement component 7, a baffle-type fixing component 3, a catheter valve, and a guide wire 8; the catheter body 1 has a catheter channel 11 extending through it along its length; the top of the umbrella-shaped anti-dislodgement component 7 has a guide wire contact end 71, and the interior of the umbrella-shaped anti-dislodgement component 7 has a guide wire holding cavity 72. The opening end of the guide wire holding cavity 72 is fixedly connected to the end of the insertion end of the catheter body 1. A urine inlet 73 is provided on the side wall of the umbrella-shaped anti-dislodgement component 7, and multiple urine inlets 73 can be evenly spaced along the circumference of the umbrella-shaped anti-dislodgement component 7; the baffle-type fixing component... Three sets are installed around the urination end of the catheter body 1; the catheter valve is fixedly installed at the end of the urination end of the catheter body 1, and the baffle-type fixing member 3 is located between the catheter valve and the catheter body 1; the traction guide wire 8 is set independently from the catheter body 1, and one end of the traction guide wire 8 passes through the catheter channel 11 and the guide wire holding cavity 72 in sequence and then abuts against the guide wire contact end 71; wherein, the umbrella-shaped anti-dislodgement member 7 is made of elastic material, and the guide wire holding cavity 72, the catheter channel 11 and the urination port 73 are connected; the outer diameter of the umbrella-shaped anti-dislodgement member 7 in the natural state is larger than the outer diameter of the catheter body 1, and the outer diameter of the umbrella-shaped anti-dislodgement member 7 in the deformed state is equivalent to the outer diameter of the catheter body 1.

[0084] Specifically, through the structural cooperation of the guide wire 8 and the umbrella-shaped anti-dislodgement component 7, the catheter body 1 is delivered from the patient's urethral opening into the patient's urethra via the guide wire 8. Specifically, one end of the guide wire 8 is sequentially passed through the catheter channel 11, the guide wire holding cavity 72, and then abutted against the guide wire contact end 71. Under the contact action of the guide wire 8, the umbrella-shaped anti-dislodgement component 7 undergoes axial deformation, making its outer diameter equivalent to the outer diameter of the catheter body 1. This allows the umbrella-shaped anti-dislodgement component 7 and a portion of the catheter body 1 to be directly pushed into the female patient's urethra via the guide wire 8. The guide wire 8 is released and removed when the umbrella-shaped anti-dislodgement component 7 reaches the bladder opening. The anti-dislodgement component 7 restores its deformation and locks at the bladder opening to limit the catheter body 1. The baffle-type fixation component 3 and the catheter valve are located outside the patient's urethral opening, that is, outside the patient's body. The umbrella-shaped anti-dislodgement component 7 and the baffle-type fixation component 3 limit both ends of the catheter body 1 to prevent the catheter from slipping out. The catheter valve is located outside the patient's body so that the patient can manually operate the opening and closing of the catheter valve to control the opening and closing of the catheter channel 11 inside the catheter body 1 to achieve urination and urinary control. This application has a simple structure and is easy to operate.

[0085] The guide wire 8 is longer than the deformed length of the catheter, and one end of the guide wire 8 has a grip for easy hand handling. The guide wire 8 can be made of nickel-titanium alloy or medical-grade stainless steel to meet the requirements of biocompatibility and mechanical strength. By stretching the umbrella-shaped fixation member with the guide wire, the umbrella-shaped fixation member is deformed and reduced in size, and the whole can be delivered to the target location through the natural cavity.

[0086] In one possible implementation, as shown in Figure 8, the umbrella-shaped anti-detachment component 7 is formed by several arc-shaped umbrella petals circumferentially connected. The circumferential area between the arc-shaped umbrella petals forms a guide wire holding cavity 72. One end of each arc-shaped umbrella petal is connected to form a guide wire contact end 71, and the other end of each arc-shaped umbrella petal is connected to form an opening end of the guide wire holding cavity 72. A urine inlet 73 is provided between every two arc-shaped umbrella petals, and the urine inlet 73 is connected to the guide wire holding cavity 72. The fixation strength of the umbrella-shaped anti-detachment component in the body can be adjusted by setting the opening size of the urine inlet 73, which can be specifically set according to actual needs.

[0087] In one possible implementation, the baffle-type fixing member 3 has an elliptical structure. A fixing hole is provided through the center of the elliptical structure. The inner diameter of the fixing hole is adapted to the outer diameter of the catheter body 1. The elliptical structure is sleeved on the outer periphery of the urination end of the catheter body 1 through the fixing hole, so as to be locked at the urethral opening by the elliptical structure to prevent the catheter from retracting inward and slipping into the bladder. At the same time, the elliptical structure is designed to reduce the width of the left and right sides of the baffle-type fixing member 3, so as to hide the baffle-type fixing member 3 inside the labia, thereby reducing the compression of the labia by the left and right sides.

[0088] In one possible implementation, an annular groove 12 is formed on the inner side wall of the catheter body 1 along the circumferential direction of the catheter body 1; a tube body seal 4 is provided on the outer side wall of the catheter body 1, the position of the tube body seal 4 corresponds to the annular groove 12, the tube body seal 4 is an annular protrusion structure, the outer diameter of the annular protrusion structure is larger than the outer diameter of the catheter body 1, and the size of the annular protrusion structure is adapted to the dilation size of the female urethra.

[0089] Specifically, the tube body seal 4 is disposed on the outer wall of the catheter body 1 and corresponds to the position of the annular groove 12, so that the tube body seal 4 fits against the urethral wall to achieve a sealing effect. At the same time, by setting the annular groove 12, the tube body seal 4 has a compression space, which can prevent the tube body seal 4 from causing continuous pressure injury to the urethral wall. The tube body seal 4 is an annular protrusion structure. The outer diameter of the annular protrusion structure is larger than the outer diameter of the catheter body 1. The size of the annular protrusion structure is adapted to the dilation size of the female urethra, so that the annular protrusion structure fits tightly against the urethral wall to achieve a sealing effect and prevent urine leakage.

[0090] In one possible implementation, the catheter valve includes a control valve body 61 and a movable ball 62; one end of the control valve body 61 is fixedly connected to the urination end of the catheter body 1; a spherical groove 611 is provided inside the control valve body 61; the side wall of the control valve body 61 extends outward to form a spherical cavity 612; the spherical cavity 612 and the spherical groove 611 are connected; a urination channel 613 communicating with the catheter channel 11 is provided through the control valve body 61 along its length direction; the urination channel 613 is provided through the spherical groove 611; the movable ball 62 is movably disposed within the spherical groove 611; wherein the spherical groove 611 and the movable ball 62 are press-fitted together; and the outer diameter of the urination channel 613 is smaller than the outer diameter of the spherical groove 611.

[0091] Furthermore, the catheter body 1, umbrella-shaped anti-dislodgement component 7, baffle-type fixing component 3, tube body sealing component 4, and control valve body 61 are integrally molded and all made of elastic materials that meet biosafety standards, specifically silicone, to simplify the overall structure while improving the comfort of use.

[0092] Specifically, when the opposite side of the spherical cavity 612 of the control valve body 61 is subjected to compressive force, the moving ball 62 enters the spherical cavity 612 from the spherical groove 611, thereby opening the urination channel 613 in the control valve body 61 and achieving the urination function. A specific structural example is shown in Figures 6-9. When urination is completed, the moving ball 62 in the spherical cavity 612 is squeezed and pushed back into the spherical groove 611 in the control valve body 61. The moving ball 62 adheres to the side wall of the spherical groove 611, blocking and closing the urination channel 613 in the middle, thereby achieving the urination control effect.

[0093] In practical use, firstly in the natural state, the guide wire 8 is inserted sequentially into the guide wire holding cavity 72 through the urination channel 613 and the catheterization channel 11, and then against the guide wire contact end 71 to deform the umbrella-shaped anti-dislodgement member 7, as shown in Figure 7. After deformation, the outer diameter of the umbrella-shaped anti-dislodgement member 7 gradually decreases until it is the same as the outer diameter of the catheter body 1. At this time, one end of the umbrella-shaped anti-dislodgement member 7 is first inserted from the female patient's urethral opening to the bladder opening, and then the umbrella-shaped anti-dislodgement member 7 is released to allow it to return to its natural state and lock into place at the bladder opening. At this time, the baffle-type fixing member 3 is locked into the patient's urethral opening, thus anchoring the position of the catheter of this application. At this time, the catheter valve of the catheter is outside the patient's urethral opening, and the patient can control urination by squeezing the catheter valve.

[0094] In one possible implementation, taking the axial direction of the catheter body 1 as a reference, the straight line between the center of the spherical cavity 612 and the center of the spherical groove 611 has a preset deflection angle with the axial direction of the catheter body 1, as shown in Figures 6, 7, and 9. The spherical cavity 612 and the spherical groove 611 can be partially overlapping, as long as it does not affect the urinary control function. The accommodating diameter of the spherical cavity 612 can be slightly larger than the diameter of the movable ball 62, and the accommodating diameter of the spherical groove 611 can be slightly smaller than the diameter of the movable ball 62, to facilitate an interference fit with the movable ball 62, thereby improving the stability of urinary control.

[0095] Example 3

[0096] The embodiment also provides a structural component for a female urinary catheter, the female urinary catheter including a catheter body with a urinary channel, the structural component including: a urinary valve disposed at the urination end of the catheter body; the structural component further including: a petal-shaped fixing component, the petal-shaped fixing component being disposed around the insertion end of the catheter body in the circumferential direction; or, an umbrella-shaped anti-dislodgement component, the umbrella-shaped anti-dislodgement component having a guide wire contact end, the interior of the umbrella-shaped anti-dislodgement component having a guide wire holding cavity, the opening end of the guide wire holding cavity being connected to the insertion end of the catheter body, the umbrella-shaped anti-dislodgement component having a urine inlet, the guide wire holding cavity, the urinary channel and the urine inlet being interconnected.

[0097] Specifically, one end of the catheter body is the insertion end, and the other end is the drainage end. A drainage valve for controlling urination is fixedly installed at the drainage end, allowing the valve to remain at the patient's urethral opening after catheter insertion. This allows the patient to manually operate the valve to control the flow of urine within the catheter body, thus achieving urination and bladder control. A petal-shaped fixation element or an umbrella-shaped anti-dislodgement element is installed at the insertion end of the catheter body to secure it to the patient's bladder opening. The device comprises a petal-shaped fixing member that is circumferentially fixed to the insertion end of the catheter body; an umbrella-shaped anti-dislodgement member with a guidewire contact end at its top and a guidewire holding cavity inside, the opening of which is fixedly connected to the insertion end of the catheter body; and multiple urine inlets evenly spaced circumferentially on the side wall of the umbrella-shaped anti-dislodgement member. The guidewire holding cavity, the catheter channel, and the urine inlets are interconnected. The umbrella-shaped anti-dislodgement member is made of an elastic material. In its natural state, the outer diameter of the umbrella-shaped anti-dislodgement member is larger than the outer diameter of the catheter body; in its deformed state, the outer diameter is approximately equal to the outer diameter of the catheter body.

[0098] Among them, the outer diameter of the umbrella-shaped anti-detachment component in its natural state is larger than the outer diameter of the catheter body, while the outer diameter of the umbrella-shaped anti-detachment component in its deformed state is comparable to the outer diameter of the catheter body.

[0099] In this embodiment, an annular groove can be formed on the inner wall of the catheter body along the circumferential direction, and a tube body seal can be provided on the outer wall of the catheter body along the circumferential direction. The tube body seal is positioned corresponding to the annular groove so that the tube body seal fits against the urethral wall to achieve a sealing effect. At the same time, by setting the annular groove, the tube body seal has a compression space, which can prevent the tube body seal from causing continuous pressure injury to the urethral wall.

[0100] The specific structure of the catheter valve can be set as described in Embodiment 1 or Embodiment 2. The outer diameter of the catheter body is adapted to the size of the urethra, and the size of the catheter valve can be set to be slightly larger than the size of the urethra. In order to further increase the anti-slip property, an elliptical baffle-type fixing member can be set on the periphery of the end of the catheter body near the external urination control part, so as to be locked into the urethral opening by the baffle-type fixing member to further prevent slippage.

[0101] As described in Embodiments 1 and 2, in one possible implementation, the catheter valve may be configured to include a control valve body and a movable ball; one end of the control valve body is fixedly connected to the urination end of the catheter body, a spherical groove is provided inside the control valve body, and the sidewall of the control valve body extends outward to form a spherical cavity, the spherical cavity and the spherical groove are connected, and a urination channel communicating with the catheter channel is provided through the control valve body along its length, the urination channel passing through the spherical groove; the movable ball is movably disposed within the spherical groove; wherein, the spherical groove and the movable ball are press-fitted, and the outer diameter of the urination channel is smaller than the outer diameter of the spherical groove. Further, the catheter body, the umbrella-shaped anti-dislodgement component, the baffle-type fixing component, the tube body seal, and the control valve body are integrally molded and all made of a biocompatible elastic material, specifically silicone, to simplify the overall structure while improving user comfort. When the opposite side of the spherical cavity of the control valve body is subjected to squeezing force, the moving ball enters the spherical cavity from the spherical groove, opening the urination channel in the control valve body and achieving the urination function; when urination is completed, the moving ball in the spherical cavity is squeezed and pushed back into the spherical groove in the control valve body. The moving ball adheres to the side wall of the spherical groove, blocking and closing the urination channel in the middle, achieving the urination control effect.

[0102] In one possible implementation, taking the axial direction of the catheter body as a reference, the straight line between the center of the spherical cavity and the center of the spherical groove has a preset deflection angle with the axial direction of the catheter body. This means the spherical cavity can be positioned close to the baffle-type fixing member. The spherical cavity and the spherical groove can partially overlap, as long as it does not affect the urinary control function. The accommodating diameter of the spherical cavity can be slightly larger than the diameter of the moving ball, and the accommodating diameter of the spherical groove can be slightly smaller than the diameter of the moving ball, to facilitate an interference fit with the moving ball and thus improve the stability of urinary control.

[0103] The baffle-type fixing component can be configured as an elliptical structure with a fixing hole through the center of the elliptical structure. The inner diameter of the fixing hole is adapted to the outer diameter of the catheter body. The elliptical structure is fitted around the urination end of the catheter body through the fixing hole, so as to lock the urethral opening through the elliptical structure to prevent the catheter from retracting inward and slipping into the bladder. At the same time, the elliptical structure reduces the width of the left and right sides of the baffle-type fixing component, so as to hide the baffle-type fixing component inside the labia, thereby reducing the compression of the labia from the left and right sides.

[0104] When the insertion end of the catheter body is configured with a petal-shaped fixing member: the structure of this petal-shaped fixing member has been described in detail in Embodiment 1, and can be configured here with reference to the structure in Embodiment 1. Correspondingly, several strip-shaped grooves of a predetermined length can be opened axially at intervals on the inner wall of the other end of the catheter part. By configuring the petal-shaped fixing member to include several fan-shaped blades, and the fan-shaped blades are arranged at intervals, a gap is left between two adjacent fan-shaped blades, which facilitates its retraction under external force. The petal-shaped fixing member is in a contracted state under external force, and its diameter in the contracted state is smaller than the diameter of the urethra. In the natural state, it is in an open state, and its diameter in the open state is larger than the diameter of the urethra and bladder orifice. By opening several strip-shaped grooves of a predetermined length on the inner wall of the insertion end of the catheter body, the petal-shaped fixing member can be retracted, and the predetermined length is much smaller than the length of the catheter body.

[0105] At this point, the structural components and the catheter body can be compressed and loaded into the tear-away sheath. Therefore, the tube body seal 4 and the petal-shaped fixing member 2 of this application must both be designed as elastic structures to facilitate compression and loading into the tear-away sheath. In use, the tear-away sheath is inserted through the urethral opening into the bladder opening, and the catheter is pushed using a push rod. Simultaneously, the tear-away sheath is torn open and retracted, allowing the petal-shaped fixing member 2 to be released at the bladder opening. The position is adjusted appropriately, and the sheath is continued to be retracted until the baffle is anchored at the urethral opening. The position of the catheter is thus fixed by the petal-shaped fixing member 2.

[0106] When the insertion end of the catheter body is designed with an umbrella-shaped anti-dislodgement feature:

[0107] Correspondingly, a guide wire can be used to simultaneously secure the catheter and directly guide it from the patient's urethra into the urethra. For details, please refer to Example 2.

[0108] The umbrella-shaped anti-detachment component can be configured to be formed by several arc-shaped umbrella petals circumferentially connected, the circumferential area between the several arc-shaped umbrella petals forming a guide wire abutment cavity, one end of the several arc-shaped umbrella petals being connected to form a guide wire abutment end, the other end of the several arc-shaped umbrella petals being connected to form an opening end of the guide wire abutment cavity, and a urine inlet being provided between every two arc-shaped umbrella petals, with the urine inlet and the guide wire abutment cavity being connected.

[0109] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0110] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the content of the present utility model's technical solution shall still fall within the scope of the present utility model's technical solution.

Claims

1. A female urinary catheter, characterized in that, The female urinary catheter includes: The catheter body has a catheter channel running through it, and an annular groove is formed on the inner side wall of the catheter body along the circumferential direction. A petal-shaped fixing member is fixed around the insertion end of the catheter body in the circumferential direction. A baffle-type fixing component is sleeved on the urination end of the catheter body; A tube body seal is disposed on the outer wall of the catheter body and corresponds to the position of the annular groove; A urinary catheter valve is fixedly disposed at the end of the urination end of the urinary catheter body, and the baffle-type fixing member is located between the urinary catheter valve and the urinary catheter body; Both the tube body seal and the petal-shaped fastener are made of elastic material.

2. The female urinary catheter as described in claim 1, characterized in that: A fixing hole is provided through the center of the baffle-type fixing member. The inner diameter of the fixing hole is adapted to the outer diameter of the catheter body. The baffle-type fixing member is sleeved around the end of the urination end of the catheter body through the fixing hole. The tube body seal is an annular protrusion structure, the outer diameter of which is larger than the outer diameter of the catheter body, and the size of which is adapted to the dilation size of the female urethra. The petal-shaped fixing member includes several fan-shaped blades, which are spaced apart along the circumferential direction of the catheter body at the insertion end of the catheter body.

3. The female urinary catheter as described in claim 2, characterized in that: The inner wall of the insertion end of the catheter body is provided with a plurality of strip-shaped grooves of a predetermined length, which are formed by extending the insertion end toward the urination end by a predetermined length.

4. The female urinary catheter as described in claim 3, characterized in that, The urinary catheter valve includes: The elastic valve body has one end fixedly connected to the end of the urination end of the catheter body. The elastic valve body is provided with a spherical cavity. The side wall of the elastic valve body is provided with a hemispherical groove. The spherical cavity and the hemispherical groove are connected. The elastic valve body is also provided with an opening and closing channel along its length, which is connected to the urination channel. The opening and closing channel is provided through the spherical cavity. A spherical bead, wherein the spherical bead is movably disposed within the spherical cavity; An elastic sleeve is sleeved around the periphery of the elastic valve body; The spherical cavity is adapted to the size of the bead, and the outer diameter of the opening and closing channel is smaller than the outer diameter of the spherical cavity; the bead is made of a biosafety compliant material; each end of the elastic sleeve has a limiting protrusion along the circumferential direction of the elastic sleeve, and each end of the outer wall of the elastic valve body has a limiting groove along the circumferential direction of the elastic valve body, with the limiting protrusion engaging with the limiting groove.

5. The female urinary catheter as described in claim 4, characterized in that: The catheter body, the petal-shaped fixation component, the baffle-shaped fixation component, the tube body seal, and the elastic valve body are integrally molded and all made of elastic materials that meet biosafety standards.

6. The female urinary catheter as described in claim 3, characterized in that, The urinary catheter valve includes: The control valve body has one end fixedly connected to the end of the urination end of the catheter body. The control valve body is provided with a spherical groove. The side wall of the control valve body extends outward to form a spherical cavity. The spherical cavity and the spherical groove are connected. The control valve body is also provided with a urination channel connected to the catheter channel along its length. The urination channel passes through the spherical cavity. A movable ball, which is movably disposed within the spherical groove; The spherical groove is adapted to the size of the moving ball, and the outer diameter of the urination channel is smaller than the outer diameter of the spherical groove.

7. A female urinary catheter, characterized in that, The female urinary catheter includes: The catheter body has a catheter channel extending through it along its length. An umbrella-shaped anti-dislodgement device has a guide wire contact end at the top and a guide wire holding cavity inside. The opening end of the guide wire holding cavity is fixedly connected to the insertion end of the catheter body. A urine inlet is provided on the side wall of the umbrella-shaped anti-dislodgement device. A baffle-type fixing component is sleeved around the urination end of the catheter body; A urinary catheter valve is fixedly disposed at the end of the urination end of the urinary catheter body, and the baffle-type fixing member is located between the urinary catheter valve and the urinary catheter body; A traction guide wire is provided independently of the catheter body. One end of the traction guide wire passes through the catheter channel in sequence, and after the guide wire abuts against the cavity, it abuts against the end of the guide wire. The umbrella-shaped anti-dislodgement component is made of elastic material, and the guide wire abutment cavity, the urinary catheter channel and the urinary inlet are connected; the outer diameter of the umbrella-shaped anti-dislodgement component in its natural state is larger than the outer diameter of the urinary catheter body, and the outer diameter of the umbrella-shaped anti-dislodgement component in its deformed state is equivalent to the outer diameter of the urinary catheter body.

8. The female urinary catheter as described in claim 7, characterized in that: The baffle-type fixing component has an elliptical structure, and a fixing hole is provided through the center of the elliptical structure. The inner diameter of the fixing hole is adapted to the outer diameter of the catheter body. The elliptical structure is sleeved on the periphery of the urination end of the catheter body through the fixing hole. The inner wall of the catheter body has an annular groove along its circumferential direction; a tube seal is provided on the outer wall of the catheter body, the tube seal is positioned corresponding to the annular groove, the tube seal is an annular protrusion structure, the outer diameter of the annular protrusion structure is larger than the outer diameter of the catheter body, and the size of the annular protrusion structure is adapted to the dilation size of the female urethra.

9. The female urinary catheter as described in claim 8, characterized in that, The urinary catheter valve includes: The control valve body has one end fixedly connected to the urination end of the catheter body. The control valve body is provided with a spherical groove. The side wall of the control valve body extends outward to form a spherical cavity. The spherical cavity and the spherical groove are connected. The control valve body is provided with a urination channel that is connected to the catheter channel along its length. The urination channel passes through the spherical groove. A movable ball, which is movably disposed within the spherical groove; The spherical groove is in interference fit with the moving ball, and the outer diameter of the urination channel is smaller than the outer diameter of the spherical groove; the catheter body, the umbrella-shaped anti-dislodgement component, the baffle-type fixing component, the tube body sealing component, and the control valve body are integrally formed and are all made of elastic materials that meet biosafety standards.

10. A structural component for a female urinary catheter, the female urinary catheter comprising a catheter body, the catheter body having a urinary catheter channel, characterized in that, The structural component includes: a urinary catheter valve, which is disposed at the urination end of the urinary catheter body; the structural component further includes: A petal-shaped fixing member is provided around the insertion end of the catheter body in the circumferential direction. or, An umbrella-shaped anti-dislodgement device has a guidewire contact end and a guidewire holding cavity inside. The opening end of the guidewire holding cavity is connected to the insertion end of the catheter body. A urine inlet is provided on the umbrella-shaped anti-dislodgement device. The guidewire holding cavity, the catheter channel, and the urine inlet are connected.

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