Male urethra administration device

Abstract

The male urethra drug delivery device comprises a first supporting rod, a second supporting rod and a drug delivery assembly, first semi-arc pieces are arranged at the front ends of the first supporting rod and the second supporting rod, and semi-through grooves are formed in the inner side faces of the first supporting rod, the second supporting rod, the first semi-arc pieces and the second semi-arc pieces; the upper and lower semi-through grooves are folded to form a round through groove, and the rear ends of the first and second supporting rods are hinged through a hinge spring piece; the medicine conveying assembly is arranged at the rear end of the first supporting rod and the rear end of the second supporting rod. The medicine conveying assembly comprises a medicine conveying pipe, a driving piece and an extruding piece. According to the drug delivery device, the first semi-arc piece and the second semi-arc piece are inserted into the urethra, a channel is provided for entering of the drug delivery pipe, the driving piece drives the front end of the drug delivery pipe to enter the urethra, meanwhile, the extruding piece extrudes the drug bag, so that drug liquid in the drug bag enters the drug delivery pipe and flows into the urethra, and the drug delivery pipe is driven to enter the urethra. The front end of the medicine conveying pipe advances in the urethra while medicine liquid flows out, and therefore the medicine liquid flows to the depth in the urethra for treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary equipment, and in particular to a male urethral medication device. Background Art

[0002] Male urethral diseases have become a growing concern. Currently, most clinical treatments are to treat these urethral diseases through oral medication or subcutaneous injection of drugs. There are many methods for treating male urinary tract infections, such as oral medication, topical medication, and rectal administration. However, no matter which method is used, the drug cannot be delivered directly to the lesion site because of transmission and absorption barriers. The efficacy of the drug at the lesion site is minimal, and even a large amount of medication cannot achieve the corresponding therapeutic effect.

[0003] At present, physical therapy is mainly used for clinical treatment. Since the male urethra is difficult to expose, it is difficult to administer the medicine. Usually, the male urethral opening is expanded with surgical forceps or hands, and then the medicine is injected. Since the male urethral opening is narrow, it is impossible for surgical forceps or hands to enter it to fully expand it, so the injected medicine mostly stays in the urethral opening, and very little medicine enters the urethra, so the recurrence rate of the disease is high and the cure rate is low. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention proposes a male urethral drug delivery device to solve the problem that due to the narrow male urethral opening, surgical forceps or hands cannot enter it to fully expand it, so most of the injected drugs stay in the urethral opening, and very little drugs enter the urethra.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A male urethral drug delivery device, comprising:

[0007] A first support rod, wherein a first semi-arc piece is provided at the front end of the first support rod, a cavity is provided inside the first support rod and the first semi-arc piece, and a semi-through groove is provided on the inner side surfaces of the first support rod and the first semi-arc piece;

[0008] A second support rod, wherein a second semi-arc piece is provided at the front end of the second support rod, a cavity is also provided inside the first support rod and the first semi-arc piece, a semi-through groove is provided on the inner side of the second support rod and the second semi-arc piece, and the upper and lower semi-through grooves are closed to form a round through groove, and the rear ends of the first support rod and the second support rod are hingedly connected by a hinged spring member, and the elastic force of the hinged spring member is used to close the first support rod and the second support rod together to form an elliptical rod body; and

[0009] A drug delivery component is arranged at the rear ends of the first strut and the second strut, and includes a drug delivery tube, a driving member and an extruding member. The front end of the drug delivery tube slides through the round groove and is inserted into the urethra. The driving member is arranged at the rear ends of the first strut and the second strut. A medicine bag is arranged on the outer side of the rear end of the drug delivery tube, and an extruding member is arranged on the medicine bag for delivering liquid medicine to the inside of the drug delivery tube.

[0010] The above-mentioned male urethral drug delivery device inserts the first semi-arc piece and the second semi-arc piece into the urethra, thereby expanding the urethral opening, providing a channel for the entry of the drug delivery tube, and reducing the friction between the drug delivery tube and the inner wall of the urethra; the front end of the drug delivery tube is driven into the urethra by the driving member, and at the same time, the movement of the drug delivery tube causes the extrusion member to squeeze the medicine bag, so that the medicine liquid in the medicine bag enters the drug delivery tube and flows into the urethra, so that the front end of the drug delivery tube moves in the urethra and the medicine liquid flows out, so that the medicine liquid can flow to the depth of the urethra for treatment.

[0011] Furthermore, the hinged spring component includes a hinge shaft and a torsion spring. The hinge shaft rotates and passes through the rear ends of the first support rod and the second support rod. The hinge shaft is sleeved with a torsion spring. One end of the torsion spring is fixedly connected to the outer wall of the first support rod, and the other end is fixedly connected to the outer wall of the second support rod.

[0012] Furthermore, the outer sides of the first semi-arc piece and the second semi-arc piece are provided with multiple leakage holes, which are connected to the corresponding cavities. The outer sides of the first support rod and the second support rod are provided with lubrication tubes connected to the interior. The other ends of the two lubrication tubes are connected to the same lubrication sac ball, and the lubrication sac ball is filled with lubricating liquid.

[0013] Furthermore, the driving member includes a driving ring, a rotating ring, a fixed ring and a connecting frame. A fixed ring is sleeved on the outer side of the rear end of the first support rod and the second support rod, and both ends of the hinge shaft are fixedly connected to the inner side surface of the fixed ring. The front ends of the two connecting frames are symmetrically fixedly connected to the outer side surface of the fixed ring, the outer side surface of the rotating ring is rotatably connected to the inner side surfaces of the front ends of the two connecting frames, the front ends of the two connecting frames are fixedly connected to the rear side surface of the driving ring, and the inner sides of the two connecting frames are fixedly connected to the limiting rods. The rotating ring is fixedly sleeved on the outer side of the drug delivery tube, and the ends of the two limiting rods close to each other are respectively limited and slidably connected to the outer side surface of the rotating ring. The inner side surface of the driving ring is provided with an internal thread, and the outer side surface of the rotating ring is provided with an external thread. The driving ring is sleeved on the outer side thread of the rotating ring and connected.

[0014] Furthermore, two symmetrical limiting grooves are provided on the outer side surface of the rotating ring, and the ends of the two limiting rods close to each other are respectively inserted into the two limiting grooves for sliding connection.

[0015] Furthermore, the extrusion member includes an extrusion ring, an extrusion block and a spring. The rear end of the drug delivery tube is inserted into the inside of the medicine bag and sealed. The outer side surface of the extrusion ring is fixedly connected between the inner sides of the rear ends of the two support frames. The inner side surface of the extrusion ring is provided with a plurality of extrusion grooves. An extrusion block is slidably connected in each extrusion groove. The plurality of extrusion blocks are evenly distributed around the drug delivery tube. A spring is provided in each extrusion groove. One end of the spring is fixedly connected to the inner wall of the extrusion groove, and the other end is fixedly connected to the end face of the extrusion block. The outer end of the extrusion block extends to the outside of the extrusion groove and can be pressed against the outer wall of the medicine bag.

[0016] Furthermore, the rear inner side surface of the extrusion ring is set as an inclined surface, and the rear inner end surface of the extrusion block is set as an inclined surface.

[0017] Furthermore, the middle and rear ends of the drug delivery tube are both hard tubes, and the front end of the drug delivery tube is a soft tube.

[0018] Furthermore, the front end of the drug delivery tube is a closed end and is a hemispherical surface, and a drug outlet hole is opened on the hemispherical surface of the drug delivery tube.

[0019] Beneficial effects of the present invention: the male urethral drug delivery device inserts the first semi-arc piece and the second semi-arc piece into the urethra to open the urethral opening, thereby providing a channel for the entry of the drug delivery tube and reducing the friction between the drug delivery tube and the inner wall of the urethra; the front end of the drug delivery tube is driven to enter the urethra by rotating the driving ring, and at the same time, the movement of the drug delivery tube drives the front side of the medicine bag to enter between the squeezing block and the drug delivery tube, thereby squeezing the medicine bag, so that the medicine liquid in the medicine bag enters the drug delivery tube and flows into the urethra, and the front end of the drug delivery tube moves in the urethra while flowing out the medicine liquid, so that the medicine liquid can flow to the depth of the urethra for treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation of the present invention, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0021] Figure 1 It is a front view of the present invention;

[0022] Figure 2 is a cross-sectional view of a first brace and a second brace;

[0023] Figure 3 is a right side cross-sectional view of the hinged spring member;

[0024] Figure 4 a cross-sectional view of a drug delivery assembly;

[0025] Reference numerals:

[0026] 11-first support rod, 12-second support rod, 13-semi-through groove, 14-cavity, 15-lubricating tube, 16-lubricating sac ball, 171-hinge shaft, 172-torsion spring, 18-blocking semi-arc plate, 181-groove;

[0027] 21-first half arc plate, 22-second half arc plate, 23-leakage hole;

[0028] 30-drug delivery assembly, 31-drug delivery tube, 311-drug outlet hole 32-driving member, 321-driving ring, 322-rotating ring, 323-fixing ring, 324-connecting frame, 325-limiting rod, 326-limiting groove, 33-extrusion member, 331-extrusion ring, 332-extrusion block, 333-spring, 334-extrusion groove, 34-medicine bag, 35-connecting ring. DETAILED DESCRIPTION

[0029] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions and positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred position or element must have a specific direction, be constructed and operated in a specific way, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] See also Figure 1 to Figure 2The present invention provides a male urethral drug delivery device, comprising a first support rod 11, a second support rod 12 and a drug delivery assembly 30, wherein a first semi-arc piece 21 is provided at the front end of the first support rod 11, a cavity 14 is provided inside the first support rod 11 and the first semi-arc piece 21, a semi-through groove 13 is provided on the inner side surface of the first support rod 11 and the first semi-arc piece 21, a second semi-arc piece 22 is provided at the front end of the second support rod 12, a cavity 14 is also provided inside the first support rod 11 and the first semi-arc piece 21, a semi-through groove 13 is provided on the inner side surface of the second support rod 12 and the second semi-arc piece 22, and the upper and lower semi-through grooves 13 are closed to form a round through groove, and the rear ends of the first support rod 11 and the second support rod 12 are hinged The spring member is hingedly connected, and the elastic force of the hinged spring member is used to close the first support rod 11 and the second support rod 12 together to form an elliptical rod body; the drug delivery component 30 is arranged at the rear end of the first support rod 11 and the second support rod 12, and is used to deliver liquid medicine to the inside of the urethra. The drug delivery component 30 includes a drug delivery tube 31, a driving member 32 and an extruding member 33. The front end of the drug delivery tube 31 slides through the round groove and is inserted into the inside of the urethra. The driving member 32 is arranged at the rear end of the first support rod 11 and the second support rod 12. A medicine bag 34 is provided on the outer side of the rear end of the drug delivery tube 31, and the medicine bag 34 contains liquid medicine. The extruding member 33 is connected to the driving member 32, and is used to deliver liquid medicine to the inside of the drug delivery tube 31.

[0033] When in use, the front ends of the first support rod 11 and the second support rod 12 are in a closed state under the elastic force of the hinged spring member in an initial state. When medication needs to be administered to the patient's urethra, the front ends of the first semi-arc sheet 21 and the second semi-arc sheet 22 are aligned with the urethral opening and slowly inserted, and finally the first semi-arc sheet 21 and the second semi-arc sheet 22 are inserted into the urethra together for a short distance. At this time, the patient's urethral opening is opened by the first semi-arc sheet 21 and the second semi-arc sheet 22; then the front end of the medication delivery tube 31 is driven by the driving member 32 to After the end passes through the circular groove, it enters the urethra. Since the urethral opening is stretched at this time, the friction between the drug delivery tube 31 and the inner wall of the urethra is reduced. The front end of the drug delivery tube 31 is driven by the driving member 32 to slowly move inside the urethra. At the same time, the driving member 32 drives the extruding member 33 to squeeze the medicine bag 34, so that the medicine liquid in the medicine bag 34 flows into the drug delivery tube 31 and is transported to the inside of the urethra, so that the drug delivery tube 31 moves while the medicine liquid flows out, and finally the deep inside of the urethra will also be fully treated by the medicine liquid.

[0034] Please also read Figure 3In this embodiment, the hinge spring member includes a hinge shaft 171 and a torsion spring 172. The hinge shaft 171 rotates and penetrates the rear ends of the first support rod 11 and the second support rod 12. The hinge shaft 171 is sleeved with a torsion spring 172. One end of the torsion spring 172 is fixedly connected to the outer wall of the first support rod 11, and the other end is fixedly connected to the outer wall of the second support rod 12. In the initial state, the torsion spring 172 is in a contracted state, and the restoring elastic force of the torsion spring 172 is used to drive the first semi-arc piece 21 and the second semi-arc piece 22 to close together, so as to prevent the first semi-arc piece 21 and the second semi-arc piece 22 from opening after being inserted into the urethra and causing damage to the urethra. At the same time, the medicine delivery tube 31 in the round groove can be limited and guided, so that the medicine delivery tube 31 can smoothly enter the urethra.

[0035] Preferably, the outer side surfaces of the first semi-arc sheet 21 and the second semi-arc sheet 22 are both provided with a plurality of leakage holes 23, the leakage holes 23 are connected to the corresponding cavities 14, and the outer side surfaces of the first strut 11 and the second strut 12 are both provided with lubricating tubes 15 connected to the inside, and the other ends of the two lubricating tubes 15 are both connected to the same lubricating sac ball 16, and the lubricating sac ball 16 is filled with lubricating liquid. When the first semi-arc sheet 21 and the second semi-arc sheet 22 are inserted into the urethra, the lubricating liquid enters the cavity 14 through the lubricating tube 15 by squeezing the lubricating sac ball 16, and then the lubricating liquid flows out from the leakage holes 23 on the first semi-arc sheet 21 and the second semi-arc sheet 22, so that the outer side surfaces of the first semi-arc sheet 21 and the second semi-arc sheet 22 are fully coated, so that when the first semi-arc sheet 21 and the second semi-arc sheet 22 are inserted into the urethra, the friction between the first semi-arc sheet 21 and the second semi-arc sheet 22 and the inner wall of the urethra is reduced, thereby alleviating the discomfort of the patient.

[0036] Please also read Figure 4 The cam 324 is provided with a plurality of locking plates 326, 327 and 328, wherein the locking plates 326 are provided with a plurality of locking plates 328. The locking plates 326 are provided with a plurality of locking plates 328. A connecting ring 35 is connected between the rear end surfaces of the two connecting frames 324 .

[0037] After the first semi-arc piece 21 and the second semi-arc piece 22 are inserted into the urethra, the rotating driving ring 321 drives the rotating ring 322 to rotate, and then the rotating ring 322 drives the drug delivery tube 31 to move in the circular groove until the front end of the drug delivery tube 31 enters the urethra. At the same time, the driving ring 321 drives the extrusion piece 33 to squeeze the medicine bag 34, so that the medicine liquid in the medicine bag 34 flows along the drug delivery tube 31 into the urethra, thereby treating the inside of the urethra; by continuing to rotate the driving ring 321, the front end of the drug delivery tube 31 is driven to move in the urethra while the medicine liquid flows out, so that the medicine liquid can fully flow into the urethra, and the medicine liquid can also be sent to the depth of the urethra for treatment.

[0038] The outer side of the rotating ring 322 is provided with two symmetrical limiting grooves 326, and the ends of the two limiting rods 325 close to each other are respectively inserted into the two limiting grooves 326 for sliding connection. The limiting rods 325 slide in the limiting grooves 326, so that the driving ring 321 can be rotated to drive the rotating ring 322 to move toward the urethra, so that the rotating ring 322 drives the drug delivery tube 31 to slowly move into the urethra.

[0039] In this embodiment, the extrusion member 33 includes an extrusion ring 331, an extrusion block 332 and a spring 333. The rear end of the drug delivery tube 31 is inserted into the medicine bag 34 and sealed. The outer side of the extrusion ring 331 is fixedly connected between the inner side surfaces of the rear ends of the two support frames. The inner side of the extrusion ring 331 is provided with a plurality of extrusion grooves 334. Each extrusion groove 334 is slidably connected with an extrusion block 332. The plurality of extrusion blocks 332 are evenly distributed around the drug delivery tube 31. Each extrusion groove 334 is provided with a spring 333. One end of the spring 333 is fixedly connected to the inner wall of the extrusion groove 334, and the other end is fixedly connected to the end face of the extrusion block 332. The outer end of the extrusion block 332 extends to the outer side of the extrusion groove 334 and can press against the outer wall of the medicine bag 34. The medicine bag 34 is elastic and can be pressed by the extrusion block 332 to fit on the outer wall of the drug delivery tube 31.

[0040] When the driving ring 321 drives the front end of the drug delivery tube 31 to move inside the urethra, the front side of the drug capsule 34 at the rear end of the drug delivery tube 31 enters the space between the multiple extrusion blocks 332, and the extrusion blocks 332 and the outer wall of the drug delivery tube 31 squeeze the drug capsule 34, so that the liquid medicine inside the drug capsule 34 enters the inside of the drug delivery tube 31. At this time, the extrusion block 332 partially slides into the extrusion groove 334, so that the spring 333 is compressed. Then, as the driving ring 321 continues to rotate, the front end of the drug capsule 34 continues to penetrate into the space between the multiple extrusion blocks 332. At this time, the area of ​​the drug capsule 34 that is squeezed and deformed is increasing, so that the liquid medicine in the drug capsule 34 continues to enter the drug delivery tube 31 and flow into the urethra, so as to achieve the effect that the front end of the drug delivery tube 31 moves inside the urethra while the liquid medicine flows out. In addition, the setting of the spring 333 has a buffering effect to prevent the squeezing force of the squeezing block 332 on the drug capsule 34 from being too large.

[0041] Preferably, the rear inner side surface of the extrusion ring 331 is set as an inclined surface, and the rear inner end surface of the extrusion block 332 is set as an inclined surface. The inclined surface and the plane inside the extrusion ring 331 are smoothly transitioned, so that the medicine capsule 34 is squeezed and deformed into the space between the extrusion block 332 and the outer wall of the drug delivery tube 31. The setting of the inclined surface on the extrusion ring 331 and the inclined surface on the extrusion block 332 has a guiding effect, making it easier for the medicine capsule 34 to enter the space between the extrusion block 332 and the drug delivery tube 31, and at the same time, it can also prevent the excessive extrusion force of the extrusion block 332 on the medicine capsule 34 from causing too much and too fast drug liquid to enter the urethra.

[0042] Preferably, the middle and rear ends of the drug delivery tube 31 are hard tubes, which can prevent the drug bag 34 from flattening the drug delivery tube 31, and the front end of the drug delivery tube 31 is a soft tube, which can reduce the discomfort caused by friction on the inner wall of the urethra.

[0043] like Figure 1 As shown, further, the front end of the drug delivery tube 31 is a closed end and a hemispherical surface, and a drug outlet hole 311 is opened on the hemispherical surface of the drug delivery tube 31, so that the contact surface between the hemispherical surface of the front end of the drug delivery tube 31 and the inner wall of the urethra is very smooth, avoiding scratching the inner wall of the urethra.

[0044] like Figure 1 As shown, in this embodiment, the front outer side surfaces of the first support rod 11 and the second support rod 12 are fixed with a blocking semi-arc plate 18, and the front side surfaces of the two blocking semi-arc plates 18 are provided with a groove 181. The setting of the blocking semi-arc plate 18 can block the urethral opening, prevent the first semi-arc sheet 21 and the second semi-arc sheet 22 from being further inserted into the urethra, and the urethral opening can enter the groove 181 for position limiting.

[0045] The working principle of the present invention is as follows: when in use, in the initial state, the front ends of the first support rod 11 and the second support rod 12 are in a closed state under the elastic force of the hinged spring member, and the lubricating sac ball 16 is squeezed to allow the lubricating liquid to enter the cavity 14 through the lubricating tube 15, and then the lubricating liquid flows out from the leakage holes 23 on the first semi-arc sheet 21 and the second semi-arc sheet 22, so that the outer side surfaces of the first semi-arc sheet 21 and the second semi-arc sheet 22 are coated; then the front ends of the first semi-arc sheet 21 and the second semi-arc sheet 22 are aligned with the urethral opening and slowly inserted, and finally the first semi-arc sheet 21 and the second semi-arc sheet 22 are The second semi-arc piece 22 is inserted into the urethra for a short distance, at which time the patient's urethral opening is opened by the first semi-arc piece 21 and the second semi-arc piece 22; then the driving ring 321 is rotated to drive the rotating ring 322 to rotate, so that the rotating ring 322 drives the drug delivery tube 31 to move in the circular groove until the front end of the drug delivery tube 31 enters the urethra. At the same time, the front side of the medicine bag 34 enters between the extrusion block 332 and the drug delivery tube 31, so that the front end of the drug delivery tube 31 moves in the urethra while the drug solution flows out, so that the drug solution can flow to the depth of the urethra for treatment.

[0046] Beneficial effects of the present invention: The male urethral drug delivery device inserts the first semi-arc piece 21 and the second semi-arc piece 22 into the urethra, thereby expanding the urethral opening, providing a channel for the entry of the drug delivery tube 31, and reducing the friction between the drug delivery tube 31 and the inner wall of the urethra; the front end of the drug delivery tube 31 is driven to enter the urethra by rotating the drive ring 321, and at the same time, the movement of the drug delivery tube 31 drives the front side of the medicine bag 34 to enter between the squeezing block 332 and the drug delivery tube 31, thereby squeezing the medicine bag 34, so that the medicine liquid in the medicine bag 34 enters the drug delivery tube 31 and flows into the urethra, so that the front end of the drug delivery tube 31 moves in the urethra and flows out the medicine liquid, so that the medicine liquid can flow to the depth of the urethra for treatment.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A male urethral drug delivery device, characterized in that: include: A first support rod, wherein a first semi-arc piece is provided at the front end of the first support rod, a cavity is provided inside the first support rod and the first semi-arc piece, and a semi-through groove is provided on the inner side surfaces of the first support rod and the first semi-arc piece; A second support rod, wherein a second semi-arc piece is provided at the front end of the second support rod, a cavity is also provided inside the first support rod and the first semi-arc piece, a semi-through groove is provided on the inner side of the second support rod and the second semi-arc piece, and the upper and lower semi-through grooves are closed to form a round through groove, and the rear ends of the first support rod and the second support rod are hingedly connected by a hinged spring member, and the elastic force of the hinged spring member is used to close the first support rod and the second support rod together to form an elliptical rod body; and A drug delivery component is arranged at the rear ends of the first strut and the second strut, and includes a drug delivery tube, a driving member and an extruding member. The front end of the drug delivery tube slides through the round groove and is inserted into the urethra. The driving member is arranged at the rear ends of the first strut and the second strut. A medicine bag is arranged on the outer side of the rear end of the drug delivery tube, and an extruding member is arranged on the medicine bag for delivering liquid medicine to the inside of the drug delivery tube.

2. A male urethral drug delivery device according to claim 1, characterized in that: The hinged spring component includes a hinge shaft and a torsion spring. The hinge shaft rotates and passes through the rear ends of the first support rod and the second support rod. The hinge shaft is sleeved with a torsion spring. One end of the torsion spring is fixedly connected to the outer wall of the first support rod, and the other end is fixedly connected to the outer wall of the second support rod.

3. A male urethral drug delivery device according to claim 2, characterized in that: The outer sides of the first semi-arc sheet and the second semi-arc sheet are both provided with a plurality of leakage holes, which are connected to the corresponding cavities. The outer sides of the first support rod and the second support rod are both provided with lubrication tubes connected to the interior, and the other ends of the two lubrication tubes are connected to the same lubrication sac ball, which is filled with lubricating liquid.

4. A male urethral drug delivery device according to claim 2, characterized in that: The driving member includes a driving ring, a rotating ring, a fixed ring and a connecting frame. A fixed ring is sleeved on the outer side of the rear end of the first support rod and the second support rod. Both ends of the hinge shaft are fixedly connected to the inner side surface of the fixed ring. The front ends of the two connecting frames are symmetrically fixedly connected to the outer side surface of the fixed ring. The outer side surface of the rotating ring is rotatably connected to the inner side surfaces of the front ends of the two connecting frames. The front ends of the two connecting frames are fixedly connected to the rear side surface of the driving ring, and the inner sides of the two connecting frames are fixedly connected to the limiting rod. The rotating ring is fixedly sleeved on the outer side of the drug delivery tube, and the ends of the two limiting rods close to each other are respectively limited and slidably connected to the outer side surface of the rotating ring. The inner side surface of the driving ring is provided with an internal thread, and the outer side surface of the rotating ring is provided with an external thread. The driving ring is sleeved on the outer side thread of the rotating ring for connection.

5. A male urethral drug delivery device according to claim 4, characterized in that: The outer side surface of the rotating ring is provided with two symmetrical limiting grooves, and the ends of the two limiting rods close to each other are respectively inserted into the two limiting grooves for sliding connection.

6. A male urethral drug delivery device according to claim 4, characterized in that: The extrusion piece includes an extrusion ring, an extrusion block and a spring. The rear end of the drug delivery tube is inserted into the medicine bag and sealed. The outer side surface of the extrusion ring is fixedly connected between the inner sides of the rear ends of the two support frames. The inner side surface of the extrusion ring is provided with a plurality of extrusion grooves. An extrusion block is slidably connected in each extrusion groove. The plurality of extrusion blocks are evenly distributed around the drug delivery tube. A spring is provided in each extrusion groove. One end of the spring is fixedly connected to the inner wall of the extrusion groove, and the other end is fixedly connected to the end face of the extrusion block. The outer end of the extrusion block extends to the outside of the extrusion groove and can be pressed against the outer wall of the medicine bag.

7. A male urethral drug delivery device according to claim 6, characterized in that: The rear inner side surface of the extrusion ring is set as an inclined surface, and the rear inner end surface of the extrusion block is set as an inclined surface.

8. A male urethral drug delivery device according to claim 7, characterized in that: The middle part and the rear end of the drug delivery tube are both hard tubes, and the front end of the drug delivery tube is a soft tube.

9. A male urethral drug delivery device according to claim 7, characterized in that: The front end of the drug delivery tube is a closed end and is a hemispherical surface, and a drug outlet hole is opened on the hemispherical surface of the drug delivery tube.

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