Urethral catheter with independent dosing cavity

Abstract

The invention relates to the technical field of urethral catheters, in particular to a urethral catheter with an independent dosing cavity, which comprises a urethral catheter body component, and an air bag component is mounted at the upper end of the urethral catheter body component. The three cavities are formed in the catheter body assembly so that multiple functions can be effectively achieved, the position of the catheter body assembly can be fully limited so that catheterization can be conducted, meanwhile, comprehensive dosing can be conducted on the inner wall of the urethra, the risk that medicine and urine are mixed can be reduced, direct dosing can be conveniently conducted, and meanwhile in the actual production and preparation process, the cost is reduced. The thickness of the flexible arc-shaped sealing piece is larger than that of the elastic pipe piece, the first fixing semicircular plate, the second fixing semicircular plate and the abutting plate piece can be separated easily during pressure applying, medicine can flow out conveniently, when the flexible arc-shaped sealing piece is not used, the first fixing semicircular plate, the second fixing semicircular plate and the abutting plate piece effectively avoid and reduce the seepage condition, and the using effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of urinary catheters, in particular to a urinary catheter with an independent drug delivery cavity. Background Art

[0002] Urinary tract infection (UTI) is an inflammation caused by pathogens that grow and multiply in the urinary tract and invade the urinary tract mucosa or tissues. It is the most common bacterial infection and is divided into upper and lower UTIs. Lower UTIs include urethritis and cystitis. Clinically, upper and lower UTIs are primarily treated with antibiotics administered by injection, oral administration, and catheterization.

[0003] In existing urinary catheters, drugs can generally be delivered to the inside of the bladder through a drug delivery cavity provided in the catheter. However, since the catheter is in close contact with the inner wall of the urethra, when drugs need to be delivered to the urethra, it is difficult for the drugs that enter the bladder to act on the urethra through the gap between the catheter and the urethra, making urethral drug delivery difficult. Since cystitis usually originates from ascending infection of urethral pathogens, the difficulty of urethral drug delivery makes it impossible to treat urethral infections simultaneously with bladder infections, resulting in repeated infections or drug resistance. At present, for external urethral anti-infection, no other form of drug delivery has been found except for catheter delivery, and it is still a major pain point in clinical practice.

[0004] Publication number CN111991680A discloses a urinary catheter with a drug-guiding function, comprising: a body having a catheter cavity for urinary catheterization and a drug-drug cavity for drug administration; a fixing portion provided at one end of the body; a catheter port provided on the body and connected to the catheter cavity; a drug-drug port provided on the body for drug administration to the bladder cavity; a catheter hole provided at a position of the body away from the fixing portion, the catheter hole being able to connect the catheter cavity and the inner wall of the urethra; the urinary catheter with a drug-guiding function of the present invention enables drugs to act more directly on the inner wall of the urethra and simultaneously on the bladder, thereby allowing the entire lower urinary tract infection to be treated simultaneously. The present invention can effectively avoid the risk of persistent urinary tract infection due to difficulty in urethral drug administration, thereby avoiding the risk of cystitis caused by ascending infection; and can reduce the dosage of antibiotics used in the system and the development of drug resistance.

[0005] The above technical solution cannot fully achieve drug administration to the inner wall of the urethra, because urine will appear on the top, causing it to mix with the medicine and affecting the drug administration effect. At the same time, in clinical practice, there is a lack of catheters with lower urethral drug administration function, so improvement is needed. Summary of the Invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a urinary catheter with an independent drug delivery cavity.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: A urinary catheter with an independent drug delivery cavity comprises a urinary catheter body assembly, an air bag assembly being mounted on the upper end of the urinary catheter body assembly, a high-pressure air delivery tube and a drug delivery connection tube being respectively passed through both sides of the urinary catheter body assembly, and a drug delivery assembly being detachably connected to the end of the drug delivery connection tube remote from the urinary catheter body assembly; The urinary catheter body assembly includes an elastic tube, and high-pressure air pipes and flexible arc-shaped seals are respectively sealed on opposite side walls of the elastic tube. The elastic tube is divided into an air flow chamber, a urinary catheter chamber, and a medicine chamber by the high-pressure air pipe and the flexible arc-shaped seal. One end of the drug administration connecting tube extends into the medicine chamber, and one end of the high-pressure air delivery tube extends into the air flow chamber. A vent is provided on one side of the upper end of the air flow chamber, and the vent is connected to the airbag assembly. A plurality of drug administration holes are provided at equal intervals on a side of the medicine chamber away from the urinary catheter chamber. A first fixed semicircular plate and a second fixed semicircular plate are respectively fixed on the opposite side walls in the dosing hole. The first fixed semicircular plate is provided with an arc-shaped opening on the side close to the second fixed semicircular plate. The first fixed semicircular plate and the second fixed semicircular plate are in conflict with each other. A conflicting plate is fixed on the side of the second fixed semicircular plate close to the medicine cavity, and the conflicting plate is in conflict with the first fixed semicircular plate.

[0008] Compared with the prior art, the present application opens three cavities in the catheter body assembly to effectively realize multiple functions. While fully limiting the position of the catheter body assembly for catheterization, it can achieve comprehensive drug administration to the inner wall of the urethra and reduce the risk of mixing of medicine and urine, so as to facilitate direct drug administration. At the same time, during actual production and preparation, the thickness of the flexible arc-shaped seal is greater than that of the elastic tube, which helps to separate the first fixed semicircular plate, the second fixed semicircular plate and the resistance plate when pressure is applied, thereby facilitating the outflow of medicine. When not in use, the first fixed semicircular plate, the second fixed semicircular plate and the resistance plate are effectively avoided, reducing seepage and improving the use effect.

[0009] Preferably, a liquid outlet tube is fixed to the lower end of the catheter body assembly, drainage ports are opened on both sides of the upper end of the elastic tube, the drainage ports and the liquid outlet tube are both connected to the catheter cavity, and the end of the high-pressure air supply tube away from the catheter body assembly is connected to a valve tube.

[0010] Furthermore, the liquid outlet tube can be effectively sealed to facilitate the control of gas flow and release of gas, and the expansion or contraction of the airbag assembly can be controlled. When expanded, the catheter body assembly can be restricted to facilitate catheterization. The drainage port is provided at the top of the catheter body assembly to facilitate the entry of urine into the catheter cavity. Moreover, the device can be connected to supporting components through a liquid outlet tube so as to collect urine in a centralized manner.

[0011] Preferably, the medication assembly includes a medication can and a fixing tube, one end of the fixing tube extends through the medication can, and the end of the fixing tube away from the medication can and the end of the medication connecting tube away from the catheter body assembly are both fixed with a connecting ring assembly; The fixing tube is provided with a clamping mechanism, and the clamping mechanism is connected to two connecting annular components.

[0012] Furthermore, the connection and fixation between the two connecting annular components can be achieved through the action of the clamping mechanism. During actual production and preparation, the clamping mechanism can be set as needed. If the component is a disposable structure, considering its economy, a simple plug-in can be adopted and a simple extrusion sealing component can be set on the drug delivery connecting tube. After the drug delivery is completed, the drug delivery component is removed and the drug delivery connecting tube is sealed. If multiple drug delivery is required, the drug delivery component should be replaced, and its detachability and sealing effect after disassembly should be considered to avoid leakage between the drug delivery connecting tube and the drug delivery component.

[0013] Preferably, the clamping mechanism comprises a screw member fixed on the fixed tube, a sliding sleeve is slidably mounted on the screw member, an opening is formed on the sliding sleeve, an adjusting nut member is threadedly sleeved on the screw member, and the adjusting nut member is located in the opening; Vertical plates are slidably installed on both sides of the connecting ring component connected to the fixed tube, and arc-shaped pressure plates are fixed on opposite sides of the two vertical plates. The lower ends of the two arc-shaped pressure plates respectively abut against one side of the connecting ring component connected to the drug delivery connecting tube.

[0014] Furthermore, by rotating the adjusting nut and controlling the rotation direction of the adjusting nut, the movement of the sleeve can be controlled. When the sleeve moves toward the direction of the medication tank, the inclined rod can drive the vertical plate to move toward the direction of the connecting ring assembly, which can make the arc-shaped pressure plate contact one side of the connecting ring assembly connected to the medication connecting tube, and can achieve close contact between the two connecting ring assemblies. During actual production and preparation, medical-grade sealing gaskets are set on the opposite sides of the two connecting ring assemblies to ensure the sealing effect.

[0015] Preferably, one side of the lower end of the arc-shaped pressing plate is arranged in an arc shape, and the arc-shaped end of the arc-shaped pressing plate conflicts with a side of the connecting ring component connected to the drug administration connecting tube that is close to the drug administration connecting tube.

[0016] Furthermore, the arc-shaped setting of the arc-shaped pressure plate can achieve smooth squeezing of the connecting ring component connected to the drug administration connecting tube, thereby achieving close contact between the two connecting ring components.

[0017] Preferably, the connecting annular assembly includes a sealing annular member, a fixing ring is fixed in the sealing annular member, a plurality of mounting tubes are fixed on the fixing ring at equal intervals, a movable shaft is passed through the mounting tube, and a reset mechanism is provided at one end of the movable shaft located in the mounting tube; A resisting circular plate is fixed to one end of the movable shaft close to the other connecting annular component; An interference sealing plate is commonly fixed on one end of the plurality of moving shafts away from another connecting annular component.

[0018] Furthermore, the resetting mechanism can achieve that when there is no external force, the conflicting sealing plate and the fixed ring conflict with each other, so as to effectively seal and reduce leakage. When in use, the connecting ring component on the dosing component corresponds to the connecting ring component on the dosing connecting tube, and the conflicting circular plates conflict with each other. As the two connecting ring components conflict, the moving shaft can push the conflicting sealing plate and the fixed ring to separate, which can facilitate the flow of the medicine in the dosing component and facilitate the direct application of the medicine to the inner wall of the urethra through the dosing hole.

[0019] Preferably, the reset mechanism comprises a sealing circular plate fixed on the movable shaft, a lower end of the sealing circular plate is fixed with an abutting seal, and a high-pressure airbag assembly is fixed between the sealing circular plate and the mounting cylinder.

[0020] Furthermore, the high-pressure airbag can shrink when subjected to force, increase the internal air pressure, and return to its original shape when there is no external force, so that the fixing ring and the contact sealing plate can be sealed.

[0021] Preferably, a sealing lifting plate is slidably installed in the medication tank, a pressing adjustment mechanism is provided at the bottom of the medication tank, an external screw nut is provided on the pressing screw mechanism, a lifting connecting frame is slidably installed on one end side wall of the medication tank, a double gear transmission assembly is installed in the lifting connecting frame, and two rocker members are connected to the double gear transmission assembly; One end of one of the rocker members is rotatably connected to one side of the outer lead screw nut member; One end of the other rocker member is slidably mounted on the lower end of the sealing lifting plate.

[0022] Furthermore, by pressing the spiral mechanism, the rocker member at the lower end can be moved and moved toward a vertical state, which will push the lifting connecting frame to rise in the medication tank. At the same time, because the movement of the rocker member can make the gear connected to it in the double-gear transmission assembly rotate, the rotation of the gear will cause the other gear to rotate in the opposite direction, and the other gear can drive the rocker member connected to it to operate toward a vertical state, so as to quickly push the sealing lifting plate up, complete the pressurization of the medicine in the medication tank, so as to quickly administer the medicine.

[0023] Preferably, the pressing screw mechanism includes a screw nut member rotatably connected to a side wall at one end of the medication canister, a screw member is screwed inside the screw nut member, and the outer screw nut member is screwed onto the screw nut member.

[0024] Furthermore, during actual production and preparation, the interior of the lead screw nut member and the lead screw member can form a lead screw nut and lead screw structure, so that when the lead screw member moves, the lead screw nut member can rotate. A collar is provided at the end of the lead screw member away from the lead screw nut member, and the medical staff's fingers can be placed in the collar for pressing. Other extrusion components can also be provided as needed. At the same time, the outer side of the screw nut part and the outer screw nut part also form a screw and screw nut structure, and the outer screw nut part can be moved toward the lifting connecting frame by rotating the screw nut part; That is, during actual operation, the movement of the screw member into the screw nut member can cause the screw nut member to rotate to drive the outer screw nut member to move toward the lifting connecting frame, which can provide a force for the rocker member at the lower end to move.

[0025] Preferably, the upper end of the other rocker member is rotatably sleeved with a connecting shaft, and one end of the connecting shaft is slidably mounted on the lower end of the sealing lifting plate.

[0026] Furthermore, it can ensure that the swing rod at the upper end can swing.

[0027] The beneficial effects of the present invention are: 1. When the medicine in the medication tank is pressurized to enter the medicine cavity through the medication connecting tube, the thickness of the flexible arc-shaped sealing member will be greater than that of the elastic tube member during actual preparation. This will cause the elastic tube member on one side of the medication cavity to deform more greatly, causing the medication hole to be stretched. As the medication hole is stretched, its diameter will increase, causing the first fixed semicircular plate and the second fixed semicircular plate to separate. The second fixed semicircular plate can drive the resistance plate member away from the first fixed semicircular plate, thus allowing the medicine to penetrate between the first and second fixed semicircular plates and be directly applied to the inner wall of the urethra. When the medication is completed, the second fixed semicircular plate drives the resistance plate member to resist the first fixed semicircular plate again to seal the medication and reduce the possibility of penetration. 2. The medicine in the drug delivery assembly can be introduced into the drug delivery connecting tube through the drug delivery assembly and the pressure-applying component installed thereon. In actual production and preparation, if the component is a disposable structure, it can be economical to adopt a simple plug-in and set a simple extrusion sealing component on the drug delivery connecting tube. After the drug delivery is completed, the drug delivery assembly can be removed and the drug delivery connecting tube can be sealed. If multiple drug delivery is required, the drug delivery assembly should be replaced, and the detachable and sealing effect after detachment should be considered to avoid leakage between the drug delivery connecting tube and the drug delivery assembly. 3. The liquid outlet tube can be effectively sealed to facilitate the control of gas flow and release of gas, and can control the expansion or contraction of the airbag assembly. When expanded, it can limit the catheter body assembly to facilitate catheterization. The drainage port at the top of the catheter body assembly facilitates the entry of urine into the catheter cavity. The liquid outlet tube can also be connected to supporting components to collect urine in a centralized manner. 4. By rotating the adjusting nut and controlling the rotation direction of the adjusting nut, the movement of the sliding sleeve can be controlled. When the sliding sleeve moves toward the medication can, it can drive the inclined rod to drive the vertical plate to move toward the direction of the connecting ring assembly, so that the arc-shaped pressure plate can contact one side of the connecting ring assembly connected to the medication connecting tube, and the two connecting ring assemblies can be tightly contacted. In actual production and preparation, medical-grade sealing gaskets are set on the opposite sides of the two connecting ring assemblies to ensure the sealing effect; 5. The reset mechanism can achieve the effect of causing the conflicting sealing plate and the fixing ring to conflict when there is no external force, so as to effectively seal and reduce leakage. When in use, the connecting ring assembly on the dosing assembly corresponds to the connecting ring assembly on the dosing connecting tube, and the conflicting circular plates conflict with each other. As the two connecting ring assemblies conflict, the moving shaft can push the conflicting sealing plate and the fixing ring to separate, which can facilitate the flow of the medicine in the dosing assembly and facilitate the direct application of the medicine to the inner wall of the urethra through the dosing hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of the present invention; Figure 2 is a cross-sectional view of the urinary catheter body assembly of the present invention; Figure 3 This is a structural diagram of the urinary catheter body assembly of the present invention; Figure 4 1 is a structural diagram of the second fixed semicircular plate and the first fixed semicircular plate in the present invention; Figure 5 This is a diagram showing the installation structure of the components on the fixed pipe in the present invention; Figure 6 This is a diagram showing the connection structure of the medication connection tube, high-pressure gas transmission tube, liquid outlet tube and urinary catheter body assembly in the present invention; Figure 7 The present invention is attached Figure 6 A magnified view of point A; Figure 8 is a cross-sectional view of the sealing ring in the present invention; Figure 9 This is a diagram showing the internal structure of the installation cylinder in the present invention; Figure 10 This is a diagram showing the internal structure of the medication container of the present invention; In the figure: 1 catheter body assembly, 11 high pressure air pipe, 12 flexible arc seal, 13 drug delivery hole, 14 elastic pipe, 15 first fixed semicircular plate, 16 arc opening, 17 second fixed semicircular plate, 18 contact plate, 19 drainage port, 2 air bag assembly, 3 drug delivery connecting pipe, 4 high pressure air pipe, 5 liquid outlet pipe, 6 valve pipe, 7 drug delivery assembly, 71 connecting ring assembly, 711 sealing ring, 712 high pressure air bag assembly, 713 movable shaft, 714 contact seal Sealing plate, 715 fixing ring, 716 conflicting circular plate, 717 mounting cylinder, 718 sealing circular plate, 719 conflicting sealing member, 72 adjusting nut, 73 sliding sleeve, 74 screw member, 75 fixing tube, 76 arc pressure plate, 77 vertical plate, 78 inclined rod, 79 dosing tank member, 791 sealing lifting plate, 792 connecting shaft, 793 screw member, 794 double gear transmission assembly, 795 lifting connecting frame, 796 screw nut member, 797 rocker member, 798 outer screw nut member. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Reference Figures 1-10 A urinary catheter with an independent drug delivery cavity includes a urinary catheter body component 1, a liquid outlet tube 5 is fixed at the lower end of the urinary catheter body component 1, and drainage ports 19 are opened on both sides of the upper end of the elastic tube 14. The drainage ports 19 and the liquid outlet tube 5 are both connected to the urinary catheter cavity. The urinary catheter body component 1 is a urinary catheter component. The drainage port 19 set at the upper end of the urinary catheter body component 1 can allow urine to enter the urinary catheter cavity, making it easy for urine to be discharged through the urinary catheter cavity and the liquid outlet tube 5. The liquid outlet tube 5 can be connected to the matching components for centralized collection. The upper end of the urinary catheter body component 1 is equipped with an airbag component 2. Both sides of the urinary catheter body component 1 are connected. A high-pressure air supply pipe 4 and a medication connecting pipe 3 are respectively provided through the high-pressure air supply pipe 4. The end of the high-pressure air supply pipe 4 away from the catheter body assembly 1 is connected to the valve pipe fitting 6. The end of the medication connecting pipe 3 away from the catheter body assembly 1 is detachably connected to the medication assembly 7. The valve pipe fitting 6 can be connected to the air supply mechanism, so that high-pressure gas can enter the airbag assembly 2 through the high-pressure air supply pipe 4 and the airflow cavity to expand the airbag assembly 2. When the airbag assembly 2 is expanded, it helps to limit the position of the catheter body assembly 1 to prevent it from slipping out. At the same time, the valve pipe fitting 6 can ensure that the high-pressure air supply pipe 4 is closed and the expansion state of the airbag assembly 2 is determined.

[0031] Reference Figure 1-Figure 4The catheter body assembly 1 includes an elastic tube 14, a medical-grade tube structure inside the elastic tube 14, one end of which is arc-shaped and closed for easy insertion into the urethra, but drainage ports 19 are provided on both sides of the arc-shaped end to facilitate urine entry into the catheter cavity inside the elastic tube 14, and a high-pressure air pipe 11 and a flexible arc-shaped seal 12 are respectively sealed and connected on opposite side walls inside the elastic tube 14. The high-pressure air pipe 11 and the flexible arc-shaped seal 12 are fixed inside the elastic tube 14, and the thickness of the high-pressure air pipe 11 and the flexible arc-shaped seal 12 are both greater than the thickness of the elastic tube 14, so that when in use, the high-pressure air pipe 11 and the flexible arc-shaped seal 12 can be prevented from deforming and squeezing the catheter cavity. Space; the elastic tube 14 is divided into an air flow chamber, a urinary catheter chamber and a medicine chamber by the high-pressure air pipe 11 and the flexible arc-shaped seal 12. One end of the drug administration connecting tube 3 extends into the medicine chamber, and one end of the high-pressure air supply pipe 4 extends into the air flow chamber. A vent is provided on one side of the upper end of the air flow chamber. The air flow enters the airbag assembly 2 through the vent, causing the airbag assembly 2 to expand, so as to limit the connection between the elastic tube 14 and the body. The vent is connected to the airbag assembly 2. A plurality of drug administration holes 13 are provided at equal intervals on the side of the medicine chamber away from the urinary catheter chamber. The drug administration holes 13 can facilitate the direct application of the medicine on the inner wall of the urethra, reduce the amount of the medicine mixed with urine, and better carry out treatment.

[0032] Reference Figure 3-Figure 4 , a first fixed semicircular plate 15 and a second fixed semicircular plate 17 are fixed on the opposite side walls in the dosing hole 13 respectively, and the first fixed semicircular plate 15 is provided with an arc-shaped opening 16 on the side close to the second fixed semicircular plate 17, and the first fixed semicircular plate 15 and the second fixed semicircular plate 17 are in conflict with each other, and a conflicting plate 18 is fixed on the side of the second fixed semicircular plate 17 close to the medicine cavity, and the conflicting plate 18 conflicts with the first fixed semicircular plate 15; under normal circumstances, the first fixed semicircular plate 15 and the second fixed semicircular plate 17 conflict, and the conflicting plate 18 can be used to seal to avoid leakage. When medicine enters the medicine cavity, the elastic tube 14 in the medicine cavity will be expanded, causing the medicine hole 13 to deform and increase, so that the second fixed semicircular plate 17 and the conflicting plate 18 are separated from the first fixed semicircular plate 15, which can facilitate the outflow of medicine to be applied to the inner wall of the urethra.

[0033] Reference Figure 1 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10The dosing assembly 7 includes a dosing tank 79 and a fixing tube 75. One end of the fixing tube 75 extends through the dosing tank 79. The end of the fixing tube 75 away from the dosing tank 79 and the end of the dosing connecting tube 3 away from the catheter body assembly 1 are both fixed with a connecting ring assembly 71; a clamping mechanism is provided on the fixing tube 75, which is connected to the two connecting ring assemblies 71; the connection and fixation between the two connecting ring assemblies 71 can be achieved through the action of the clamping mechanism. During actual production and preparation, the clamping mechanism can be set as needed. If the component is a disposable structure, considering its economy, a simple plug-in and a simple extrusion sealing component can be used, and the dosing connecting tube 3 can be set. After the drug application is completed, the dosing assembly 7 is removed and the dosing connecting tube 3 is sealed. If multiple drug applications are required and the dosing assembly 7 is replaced, its detachability and the sealing effect after disassembly are considered to avoid leakage between the dosing connecting tube 3 and the dosing assembly 7.

[0034] Reference Figure 5-Figure 7 The clamping mechanism includes a screw member 74 fixed to the fixed tube 75, a sliding sleeve 73 is slidably mounted on the screw member 74, the sliding sleeve 73 is provided with an opening, an adjusting nut member is threadedly sleeved on the screw member 74, and the adjusting nut member is located in the opening; vertical plates 77 are slidably mounted on both sides of the connecting ring component 71 connected to the fixed tube 75, and arc-shaped pressure plates 76 are fixed on the opposite sides of the two vertical plates 77, and the lower ends of the two arc-shaped pressure plates 76 respectively contact one side of the connecting ring component 71 connected to the drug delivery connecting tube 3; by rotating the adjusting The section nut 72 and the rotation direction of the control adjusting nut 72 can control the movement of the sleeve 73. When the sleeve 73 moves toward the direction of the medication tank 79, it can drive the inclined rod 78 to drive the vertical plate 77 to move toward the direction of the connecting ring component 71, so that the arc pressure plate 76 can contact one side of the connecting ring component 71 connected to the medication connecting tube 3, and can achieve close contact between the two connecting ring components 71. During actual production and preparation, medical-grade sealing gaskets are set on the opposite sides of the two connecting ring components 71 to ensure the sealing effect.

[0035] Reference Figure 7 The lower end of the arc-shaped pressure plate 76 is arranged in an arc shape, and the arc-shaped end of the arc-shaped pressure plate 76 conflicts with the side of the connecting ring component 71 connected to the medication connecting tube 3 close to the medication connecting tube 3; the arc-shaped setting of the arc-shaped pressure plate 76 can achieve smooth squeezing of the connecting ring component 71 connected to the medication connecting tube 3, and achieve close conflict between the two connecting ring components 71.

[0036] Reference Figure 1 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10The connecting ring assembly 71 includes a sealing ring member 711, a fixing ring 715 is fixed in the sealing ring member 711, and a plurality of mounting cylinders 717 are fixed on the fixing ring 715 at equal intervals. A moving shaft 713 is passed through the mounting cylinder 717, and a reset mechanism is provided at one end of the moving shaft 713 located in the mounting cylinder 717; a contact circular plate 716 is fixed at one end of the moving shaft 713 close to another connecting ring assembly 71; a contact sealing plate 714 is fixed at one end of the multiple moving shafts 713 away from another connecting ring assembly 71; the reset mechanism can realize When there is no external force, the contact sealing plate 714 and the fixed ring 715 are in conflict with each other to effectively seal and reduce leakage. When in use, the connecting ring component 71 on the dosing component 7 corresponds to the connecting ring component 71 on the dosing connecting tube 3, and the contact circular plate 716 is in conflict with each other. As the two connecting ring components 71 are in conflict, the movable shaft 713 can push the contact sealing plate 714 and the fixed ring 715 to separate, which can facilitate the flow of the medicine in the dosing component 7 and facilitate the direct application of the medicine to the inner wall of the urethra through the dosing hole 13.

[0037] Reference Figure 1 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 The reset mechanism includes a sealing circular plate 718 fixed on the movable shaft 713, and a resistance seal 719 is fixed to the lower end of the sealing circular plate 718. A high-pressure airbag assembly 712 is fixed between the sealing circular plate 718 and the mounting tube 717. The high-pressure airbag can shrink when subjected to force, and the internal air pressure increases. When there is no external force, it returns to its original state, so that the fixing ring 715 and the resistance sealing plate 714 can be resisted and sealed.

[0038] Reference Figure 1 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10A sealed lifting plate 791 is slidably installed in the medication tank 79, a pressing adjustment mechanism is provided at the bottom of the medication tank 79, an external screw nut 798 is provided on the pressing screw mechanism, a lifting connecting frame 795 is slidably installed on the side wall of one end of the medication tank 79, a double gear transmission component 794 is installed in the lifting connecting frame 795, and two rocker components 797 are connected to the double gear transmission component 794; one end of one rocker component 797 is rotatably connected to one side of the external screw nut 798; one end of the other rocker component 797 is slidably installed on the sealed lifting plate 7 91; by pressing the screw mechanism, the rocker member 797 at the lower end can be moved and moved toward the vertical state, which will push the lifting connecting frame 795 to rise in the medication tank 79, and at the same time, because the movement of the rocker member 797 can make the gear connected to it in the double-gear transmission assembly 794 rotate, the rotation of the gear will make the other gear rotate in the opposite direction, and the other gear can drive the rocker member 797 connected to it to operate toward the vertical state, so as to quickly push the sealing lifting plate 791 to rise, complete the pressurization of the medicine in the medication tank 79, so as to quickly apply the medicine.

[0039] Reference Figure 1 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 , the pressing screw mechanism includes a screw nut member 796 that is rotatably connected to the side wall of one end of the medication tank member 79, the screw member 793 is screwed into the screw nut member 796, and the outer screw nut member 798 is screwed into the screw nut member 796; during actual production and preparation, the interior of the screw nut member 796 and the screw member 793 can form a screw nut and screw structure, so that when the screw member 793 moves, the screw nut member 796 can be rotated, and a ring is provided at the end of the screw member 793 away from the screw nut member 796, and the medical staff's fingers can be placed in the ring for pressing, and other extrusion components can also be provided as needed; At the same time, the outer side of the screw nut member 796 and the outer screw nut member 798 also form a screw and screw nut structure, and the outer screw nut member 798 can be moved toward the lifting connecting frame 795 by rotating the screw nut member 796; That is, during actual operation, the movement of the screw member 793 toward the screw nut member 796 can cause the screw nut member 796 to rotate to drive the outer screw nut member 798 to move toward the lifting connecting frame 795, which can provide force for the rocker member 797 at the lower end to move.

[0040] Reference Figure 1 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 The upper end of another rocker member 797 is rotatably sleeved with a connecting shaft 792, and one end of the connecting shaft 792 is slidably mounted on the lower end of the sealing lifting plate 791; this can ensure that the rocker member 797 at the upper end can swing.

[0041] In the present invention, one end of the catheter body assembly 1 with the airbag assembly 2 is inserted into the urethra and connected to the air supply component via the valve pipe 6, which can inflate the airbag assembly 2 and fix the catheter body assembly 1. If there is urine, it can enter the catheter cavity through the front end of the catheter body assembly 1 and then be discharged through the liquid outlet tube 5. In actual use, the liquid outlet tube 5 can be connected to a matching urine bag or other components for collection; When administering the medicine, pressing the screw member 793 causes the screw nut member 796 to drive the outer screw nut member 798 to move, which enables the two rocker members 797 to rise the sealing lifting plate 791 under the action of the lifting connecting frame 795 and the double-gear transmission assembly 794, so as to squeeze the medicine in the medication tank member 79 into the medicine cavity through the medication connecting tube 3, which can cause the medication hole 13 to be stretched open, and the resistance plate 18 and the second fixed semicircular plate 17 to separate from the first fixed semicircular plate 15, so that the medicine can directly act on the inner wall of the urethra.

[0042] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A urinary catheter with an independent drug delivery cavity, comprising a urinary catheter body component (1), characterized in that: An air bag assembly (2) is installed at the upper end of the catheter body assembly (1), and a high-pressure air supply pipe (4) and a drug administration connecting pipe (3) are respectively provided on both sides of the catheter body assembly (1). The drug administration connecting pipe (3) is detachably connected to a drug administration assembly (7) at one end away from the catheter body assembly (1); The catheter body assembly (1) includes an elastic tube (14), and high-pressure air pipes (11) and flexible arc-shaped seals (12) are respectively sealed on opposite side walls of the elastic tube (14). The elastic tube (14) is divided into an air flow cavity, a urinary catheter cavity, and a medicine cavity by the high-pressure air pipe (11) and the flexible arc-shaped seal (12). One end of the drug administration connecting tube (3) extends into the medicine cavity, and one end of the high-pressure air delivery tube (4) extends into the air flow cavity. A vent is provided on one side of the upper end of the air flow cavity, and the vent is connected to the airbag assembly (2). A plurality of drug administration holes (13) are provided at equal intervals on a side of the medicine cavity away from the urinary catheter cavity. A first fixed semicircular plate (15) and a second fixed semicircular plate (17) are fixed on opposite side walls of the drug delivery hole (13), respectively. An arc-shaped opening (16) is provided on a side of the first fixed semicircular plate (15) close to the second fixed semicircular plate (17), and the first fixed semicircular plate (15) and the second fixed semicircular plate (17) are in conflict with each other. A conflicting plate (18) is fixed on a side of the second fixed semicircular plate (17) close to the medicine cavity, and the conflicting plate (18) is in conflict with the first fixed semicircular plate (15).

2. A urinary catheter with an independent drug delivery cavity according to claim 1, characterized in that: A liquid outlet pipe (5) is fixed to the lower end of the catheter body assembly (1), drainage ports (19) are provided on both sides of the upper end of the elastic tube (14), and the drainage ports (19) and the liquid outlet pipe (5) are both connected to the urinary catheter cavity. The end of the high-pressure gas pipe (4) away from the catheter body assembly (1) is connected to a valve pipe (6).

3. The urinary catheter with an independent drug delivery cavity according to claim 1, characterized in that: The medication assembly (7) comprises a medication tank (79) and a fixing tube (75), one end of the fixing tube (75) extends through the medication tank (79), and the end of the fixing tube (75) away from the medication tank (79) and the end of the medication connecting tube (3) away from the catheter body assembly (1) are both fixed with a connecting ring assembly (71); The fixed tube (75) is provided with a clamping mechanism, and the clamping mechanism is connected to the two connecting annular components (71).

4. A urinary catheter with an independent drug delivery cavity according to claim 3, characterized in that: The clamping mechanism comprises a screw member (74) fixed on a fixed tube (75), a sliding sleeve (73) being slidably mounted on the screw member (74), an opening being formed on the sliding sleeve (73), an adjusting nut being threadedly sleeved on the screw member (74), and the adjusting nut being located in the opening; Vertical plates (77) are slidably mounted on both sides of the connecting ring assembly (71) connected to the fixed tube (75), and arc-shaped pressing plates (76) are fixed on opposite sides of the two vertical plates (77). The lower ends of the two arc-shaped pressing plates (76) respectively contact one side of the connecting ring assembly (71) connected to the drug administration connecting tube (3).

5. The urinary catheter with an independent drug delivery cavity according to claim 4, characterized in that: One side of the lower end of the arc-shaped pressing plate (76) is arranged in an arc shape, and the arc-shaped end of the arc-shaped pressing plate (76) is in conflict with a side of the connecting ring component (71) connected to the drug administration connecting tube (3) close to the drug administration connecting tube (3).

6. The urinary catheter with an independent drug delivery cavity according to claim 3, characterized in that: The connecting annular assembly (71) comprises a sealing annular member (711), a fixing ring (715) is fixed in the sealing annular member (711), a plurality of mounting tubes (717) are fixed on the fixing ring (715) at equal intervals, a movable shaft (713) is provided through the mounting tube (717), and a reset mechanism is provided at one end of the movable shaft (713) located in the mounting tube (717); A resisting circular plate (716) is fixed to one end of the movable shaft (713) close to the other connecting annular component (71); A resisting sealing plate (714) is commonly fixed to one end of the plurality of movable shafts (713) away from another connecting annular component (71).

7. The urinary catheter with an independent drug delivery cavity according to claim 6, characterized in that: The reset mechanism comprises a sealing circular plate (718) fixed on the movable shaft (713), a resisting seal (719) being fixed at the lower end of the sealing circular plate (718), and a high-pressure airbag assembly (712) being fixed between the sealing circular plate (718) and the mounting cylinder (717).

8. The urinary catheter with an independent drug delivery cavity according to claim 1, characterized in that: A sealing lifting plate (791) is slidably mounted in the medication tank (79), a pressing adjustment mechanism is provided at the bottom of the medication tank (79), an external screw nut (798) is provided on the pressing screw mechanism, a lifting connecting frame (795) is slidably mounted on one end side wall of the medication tank (79), a double gear transmission assembly (794) is installed in the lifting connecting frame (795), and two rocker members (797) are connected to the double gear transmission assembly (794); One end of one of the rocker members (797) is rotatably connected to one side of the outer screw nut member (798); One end of another rocker member (797) is slidably mounted on the lower end of the sealing lifting plate (791).

9. The urinary catheter with an independent drug delivery cavity according to claim 8, characterized in that: The pressing screw mechanism includes a screw nut member (796) rotatably connected to a side wall of one end of the medication tank member (79), a screw member (793) is screwed into the screw nut member (796), and the outer screw nut member (798) is screwed into the screw nut member (796).

10. The urinary catheter with an independent drug delivery cavity according to claim 8, characterized in that: The upper end of the other rocker member (797) is rotatably sleeved with a connecting shaft (792), and one end of the connecting shaft (792) is slidably mounted on the lower end of the sealing lifting plate (791).

Images