CN112245785A - Transurethral implanted type catheter medicine injection flushing device - Google Patents

Abstract

The invention discloses a transurethral implanted type catheter medicine injection flushing device which comprises an accommodating part, an outer cover, a handle, a shunting chamber, a composite tube, a supporting tube, a flexible catheter and the like. The accommodating part comprises a temporary urine storage chamber, a circulating chamber and a liquid medicine bottle, wherein the temporary urine storage chamber is used for temporarily storing urine, an urine inlet is formed in the upper end of the temporary urine storage chamber, a urine discharge port and a valve are formed in the lower end of the temporary urine storage chamber, and a backflow port and a suction port are formed in the upper end of the circulating chamber. The invention realizes the circular cleaning, and realizes the circular cleaning after removing serous secretion or bacterial derivatives on the surface of the mucosa. Can further go deep into the bladder to clean the bladder and ureter with the medicine. A flexible guide catheter capable of stretching and retracting can controllably stretch and controllably swing. When the urethra, the bladder and the ureter need to be loaded and cleaned simultaneously, the circulating liquid medicine, the cleaning pipeline or the replacement rod head are needed to be replaced.

Description

Transurethral implanted type catheter medicine injection flushing device

Technical Field

The invention belongs to the technical field of urinary system appliances, and particularly relates to a device for injecting and flushing a catheter by transurethral implantation.

Background

Urinary system infection includes ascending infection and descending infection, and most of urine infections are caused by ascending infection. Normally, inflammation of the urethral meatus and its surrounding urethra is bacterial parasitic, but generally does not cause infection. When the body resistance is reduced or the urethral mucosa is slightly damaged, or the toxicity of bacteria is high, the capability of adhering to the urethral mucosa and ascending is strong, and the urinary bladder, the ureter and the kidney are easy to invade, so that the infection is caused. The affected urinary bladder part and the mucous membrane surface of the inner wall of the ureter are always adhered by serous or purulent secretion, even scab films are generated after the secretion is dried, at present, the washing type disinfection can only wash the mucous membrane surface of the urethra limitedly, liquid or vapor medicine liquid is difficult to directly permeate into epidermal tissues, and at present, a washing and disinfecting tool for effectively washing and disinfecting the urinary bladder and the ureter is lacked.

The lower end of the ureter is positioned at the urine outlet of the bladder, is positioned at the upper parts of the left side and the right side of the bladder and does not directly correspond to the urethra, so that the problem of difficult guiding exists when the medicine injection pipe is guided into the ureter by crossing the bladder through the urethra. At present, a puncture tool is adopted to inject liquid medicine into a ureter through a bladder, the puncture part needs disinfection treatment and a recovery period, and a patient has many cautions in the recovery period and inconvenience is brought. Some instruments with guiding function, such as holmium laser lithotripsy under endoscope, are introduced into ureteroscope and flexible uretero-renoscope via urethra, pass through bladder to ureter, and reach the position of ureter calculus on one side, and the implantation section with bending function adopts optical fiber material for transmitting signal and energy, and the guiding part is not suitable for being arranged as infusion tube structure, and can not be used for infusion anti-inflammation or litholytic application. In addition, when the medicine is injected into the ureter for transfusion, a circulating transfusion mode is not adopted at present, so that the problems of insufficient transfusion coverage and depth and no slow release function of liquid medicine are caused, and the treatment effect is influenced.

Disclosure of Invention

Aiming at the current situation that a flushing and disinfecting tool for effectively flushing and disinfecting the bladder and the ureter is absent in the prior art, the invention provides a transurethral implanted type catheter medicine injection flushing device which is used for implanted type circulating flushing and disinfecting treatment.

The technical scheme adopted by the invention for solving the technical problems is as follows: a transurethral implantable drug-injection flushing device for a catheter comprises an accommodating part, an outer cover, a handle, a shunting chamber, a composite tube, a supporting tube, a flexible catheter and the like. The accommodating part comprises a temporary urine storage chamber, a circulating chamber and a liquid medicine bottle, wherein the temporary urine storage chamber is used for temporarily storing urine, an urine inlet is formed in the upper end of the temporary urine storage chamber, a urine discharge port and a valve are formed in the lower end of the temporary urine storage chamber, and a backflow port and a suction port are formed in the upper end of the circulating chamber.

The outer cover is used for being sleeved on the top of the accommodating part and covering all the pipelines.

One end of the handle is connected with the confluence part, and the other end of the handle is connected with the outer cover through an outer wrapping pipe.

The inner wall of the composite tube is radially distributed with a plurality of radial ribs, the flexible catheterization cannula is sleeved at the axis position of the composite tube in a matching way and can slide in the composite tube, a catheterization cavity is formed between the adjacent radial ribs, the outer side of the upper end part of the composite tube is provided with an air bag, and the air bag is led out of the shunting chamber through an inflation and deflation tube.

The supporting tube is fixedly connected to the upper end of the composite tube, the front end of the supporting tube is connected with a pull rope through a fixing sleeve, the pull rope is led out from one of the urine guide cavities, and an expansion joint is further arranged on one side, close to the pull rope, of the side wall of the supporting tube, so that the supporting tube can bend directionally along one side of the expansion joint under the action of pull force of the pull rope.

The flexible catheterization intubation is sleeved in the composite tube and the supporting tube at the same time, and the exposed end part is provided with a transfusion hole.

The shunting chamber comprises a closed shell, the lower end of the composite tube is sleeved in the shell, the flexible catheterization intubation positioned at the inner side of the composite tube is led out from the rear end port of the composite tube, and the lower end part of the composite tube is also led out outwards to form a urine tube which is communicated with the catheterization cavity.

Still include a negative pressure pump, its entry linkage the urine pipe, export through connecting the discharge tube and connecting controllable three-way valve, controllable three-way valve's export one is through the urinary catheterism connection the urine entry, export two-way through the back flow connection the backward flow mouth.

The lower end of the flexible catheterization intubation is connected with the outlet of the three-way joint, and two inlets of the three-way joint are respectively connected with the suction port and the inlet of the liquid medicine bottle.

The urinary catheter, the return pipe and the wiring harness are hermetically wrapped by the wrapping pipe; the input end of the controller is connected with the keys, the output end of the controller controls the corresponding pump, and the pump is driven to start and stop by pressing the corresponding keys.

And a proportion regulating valve is also connected between the outlet of the liquid medicine bottle and the inlet of the three-way joint.

And a positive pressure pump is further connected between the flexible catheterization intubation and the outlet of the three-way joint, the inlet of the positive pressure pump is connected with the outlet of the three-way structure through a suction pipe, and the outlet of the positive pressure pump is connected with the flexible catheterization intubation.

The positive pressure pump or the negative pressure pump is fixedly arranged in the inner cavity of the handle.

A liquid level sensor is arranged at the port of a urethral catheterization cavity positioned at the upper end of the coincidence tube, the liquid level sensor is connected with the signal input end of a controller through a signal wire, the adopted three-way joint is an electromagnetic three-way valve, and the output end of the controller is connected with the control end of the electromagnetic three-way valve.

The lateral surface of the upper part of the urine temporary storage chamber is also provided with an overflow pipe joint which is connected with the urine belt.

The invention has the beneficial effects that: realizing circular cleaning, and realizing circular cleaning after removing serous secretion or bacterial derivatives on the surface of the mucosa. Can further go deep into the bladder to clean the bladder and ureter with the medicine. A flexible guide catheter capable of stretching and retracting can controllably stretch and controllably swing. When the urethra, the bladder and the ureter need to be loaded and cleaned simultaneously, the circulating liquid medicine, the cleaning pipeline or the replacement rod head are needed to be replaced.

The invention has simple operation and convenient use, the composite tube is used for being implanted into urethra by hand operation, the shunting chamber is positioned outside the body and guides the flexible catheterization cannula to be positioned in bladder, a small amount of residual urine (the tool needs to be used after catheterization before use) enters the urine temporary storage chamber through the upper port of the composite tube under the action of the negative pressure pump, the three-way valve is switched after the residual urine is cleared, and the liquid medicine circulation is realized by the negative pressure pump or the positive pressure pump. The dosage of the medicine is controlled by a proportional valve, the proportional valve is closed in the early stage and is only used for circular flushing, then the proportion is gradually increased for adding the medicine, the medicine is circularly flushed, and the medicine liquid can be continuously injected when the dosage is insufficient.

The flexible urethral catheterization tool can be applied to liquid medicine flushing of the ureter, the supporting tube is arranged in the bladder and used for controlling the flexible urethral catheterization cannula to change the direction and the bending angle, the flexible urethral catheterization cannula is pushed to enable the front end of the flexible urethral catheterization cannula to firstly enter the ureter, the flexible urethral catheterization cannula is continuously pushed to enter the ureter at different depths, and the tool is operated under the B-ultrasonic or fluoroscopy condition when being inserted into the ureter. The flexible catheterization intubation is provided with a liquid outlet hole at least at the front end position for outputting liquid medicine. In the process of circular irrigation, liquid medicine output from the flexible catheterization cannula enters the corresponding depth position of the ureter, then flows into the bladder along with the ureter, enters the composite tube at the bottom of the bladder, and the composite tube guides collected liquid medicine into a circulating chamber through the suction effect of a negative pressure pump to form circulation, and the dosage is adjusted by controlling a proportional valve in the period.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a sectional view of B-B in fig. 1.

Fig. 3 is an enlarged structural view of a portion a in fig. 1.

Fig. 4 is a schematic view of the structure of the part C in fig. 1.

Fig. 5 is a view showing the internal structure of the driving handle of fig. 1.

Fig. 6 is a diagram showing a connection relationship between the accommodating section and the multiple pipes in fig. 1.

Fig. 7 is a schematic structural diagram of another embodiment of the present invention.

Fig. 8 is a diagram showing a connection relationship between the accommodating section and the multiple pipes in fig. 7.

Fig. 9 is an enlarged structural view of the accommodating member in fig. 8.

Fig. 10 is a schematic view of a flexible catheterization cannula pushing mechanism (portion D in fig. 7).

FIG. 11 is a schematic view of another flexible urinary catheter pushing mechanism.

Fig. 12 is a schematic view of the cross-sectional structure E-E of fig. 11.

Reference numbers in the figures: the holding part 1, the outer cover 2, the handle 3, the confluence chamber 4, the diversion chamber 5, the composite tube 6, the support tube 7, the flexible catheterization tube 8, the air bag 9, the direction-adjusting driving mechanism 10, the urine temporary storage chamber 11, the circulation chamber 12, the urine inlet 13, the urine discharge port 14, the overflow pipe joint 15, the liquid medicine bottle 16, the liquid medicine inlet 17, the suction pipe 18, the liquid medicine outlet 19, the medicine adding port 20, the inner piston body 21, the clamping groove 22, the return port 23, the suction port 24, the urination pipe 25, the return pipe 26, the proportion regulating valve 27, the three-way joint 28, the suction pipe 29, the outer envelope 30, the negative pressure pump 31, the positive pressure pump 32, the controllable three-way valve 33, the regulating rod 34, the urination pipe 35, the circuit board 36, the wiring harness 37, the fixing sleeve 38, the pull rope 39, the expansion joint 40, the radial rib 41, the urination cavity 42, the liquid level sensor 43, the axial outer chute 44, air pipe connector 49, liquid discharge pipe 50, confluence connector 51 and rubber cover 52.

Detailed Description

Example 1: a drug injection flushing device for a catheter as shown in figure 1 is used for spraying drugs in a bladder for diminishing inflammation after being implanted into the bladder through a urethra, guiding a flexible catheterization cannula 8 into the ureter after a supporting tube 7 is controlled to be turned backwards, realizing a cyclic drug injection process through a pump and a pipeline system, and placing the flexible catheterization cannula 8 at different depths of the ureter by pushing the flexible catheterization cannula 8. The liquid medicine enters the bladder or the ureter and then converges on the composite tube, and then enters the circulatory system.

Specifically, as can be seen from fig. 1, the device mainly comprises a containing part 1, a housing 2, a handle 3, a shunt chamber 5, a composite tube 6, a support tube 7, a flexible catheterization cannula 8 and the like, and the functions and the connection relations of the components are as follows.

The containing part 1 includes a urine temporary storage chamber 11, a circulation chamber 12, and a liquid medicine bottle 16. As can be seen from fig. 6, the urine temporary storage chamber 11 of the containing member 1 is used for temporarily storing urine, and since the tool needs to be used after the urine is introduced before use, the amount of urine entering the containing member 1 is not so large. However, if the quantity of urine entering the receiving member 1 exceeds its receiving limit, it can be discharged to the urine bag through an overflow pipe connector 15 provided at the upper side of the urine temporary storage chamber 11, and the device is discharged for cleaning and disinfection through a urine discharge port 14 and a valve at the bottom of the urine temporary storage chamber 11. The urine temporary storage chamber 11 is provided at its upper end with a urine inlet 13. The urine temporary storage chamber 11 is not a member mainly used for urinary catheterization, but is used for early urination during the circulation of the medicine so as to minimize the urine from entering the medicine circulation system.

The circulation chamber 12 is used for containing normal saline or purified water as a circulation medium and is used for containers for early-stage circulation washing and later-stage circulation medicine feeding. Figure 6 shows that a return port 23 and a suction port 24 are provided at the upper end of the circulation chamber.

Meanwhile, the liquid medicine bottle 16 adopted in the present embodiment is a special structure, the lower end of the liquid medicine bottle is provided with a liquid medicine inlet 17 and is inserted into the bottom of the circulation chamber 12 through a suction pipe 18, the upper end of the liquid medicine bottle 16 is provided with a liquid medicine outlet 19, and one side of the upper part of the liquid medicine bottle 16 is provided with a liquid medicine adding port 20 and a mounting rubber seal cover 52. The liquid medicine bottle 16 is arranged in a clamping groove 22 at one side of the circulating chamber 12, and a through hole is formed at the bottom of the clamping groove and used for penetrating and installing the suction pipe. As can be seen in the figure, the outlet at the upper end of the liquid medicine bottle is connected with a proportional valve, and the pressurizing proportion and the medicine adding time can be manually controlled. The above provides the structure of the liquid medicine bottle participating in the circulation system, and further, the inner piston body 21 is installed in the liquid medicine bottle 16, which can be referred to fig. 9, for isolating the liquid medicine bottle from the circulation liquid. In addition, a common liquid medicine bottle can be adopted, and the bottle mouth of the liquid medicine bottle can be directly connected with the proportional valve through a corresponding pipeline. A medicine feeding port 20 and a rubber sealing cover 52 are arranged at one side of the upper part of the medicine liquid bottle 16, and the medicine liquid can be temporarily filled after the syringe needle passes through the rubber sealing cover 52.

In the left part of the figure 1, a flexible catheterization cannula 8, a supporting tube 7, a composite tube 6 and a shunting chamber 5 are arranged in sequence from top to bottom, the flexible catheterization cannula 8 is sleeved on the composite tube 6 and the supporting tube 7 at the same time, and the exposed end part is provided with an infusion hole. The cross section of the composite tube 6 is shown in fig. 2, it can be seen that a plurality of radial ribs 41 are distributed on the inner wall of the composite tube 6 along the radial direction, the flexible catheterization cannula 8 is sleeved at the axial center position of the composite tube 6 in a matching manner, and the flexible catheterization cannula 8 can slide in the composite tube because the flexible catheterization cannula and the flexible catheterization cannula are not fixed. The adjacent radial ribs 41 form a urethral catheterization cavity 42, and the upper end of part of the urethral catheterization cavity 42 is open and is implanted in the inner side of the bladder for collecting urine or circulating liquid.

The system needs to ensure a closed space in the bladder when in operation, so the air bag 9 is arranged on the outer side of the upper end part of the composite tube 6, the air bag 9 is led out of the shunting chamber through the inflation and deflation tube 48, and the air tube joint 49 is led out from the shunting chamber 5 side as shown in figure 1. The air bag 9 is positioned at the root part in the urethra, and the air bag 9 is inflated through the inflation and deflation pipe 48 to seal the urethra.

The support tube 7 is used for supporting and bending guiding the flexible catheterization cannula 8, and the function is mainly applied to ureteral intubation. As can be seen in the figure, the supporting tube 7 is directly and fixedly connected with the upper end of the composite tube, namely, is fixedly sleeved at the axial position of the composite tube 6.

As can be seen from fig. 3, a pull cord 39 is connected to the front end of the support tube 7 via a fixing sleeve 38, and after the pull cord has been led out of one of the urine guide chambers 8, its outer end is connected to the direction-adjusting drive 10. As can be seen from the figure, in the embodiment, the support is arranged on one side of the shunting chamber 5 and is hinged with the bent swing rod, the pull rope 39 is connected to the swing rod, the handle is held by hand and the swing rod is shifted by the forefinger, so that the degree of pulling the pull rope 39 can be controlled, and the bending direction and the bending degree of the supporting tube 7 positioned in the bladder can be known under the visible or B-ultrasonic condition. The integral rotating handle and the shunting chamber 5 can drive the supporting tube 7 to rotate so as to change the bending direction of the supporting tube.

As can also be seen in fig. 3, the side wall of the support tube 7 adjacent to the pull cord 39 is also provided with an expansion joint 40, so that the support tube can be bent in an oriented manner along the expansion joint 40 under the pull of the pull cord.

The diversion chamber 5 comprises a closed housing, and a part of the structure is as shown in fig. 4, namely, the lower end of the composite tube is sleeved in the housing, the flexible catheterization cannula 8 positioned at the inner side of the composite tube is led out from the rear end port of the composite tube, the lower end part of the composite tube is also led out to the outside to form a urinary tube 35, and the urinary tube 35 is communicated with the catheterization cavity 42.

One end of the handle 3 is connected with the confluence part, and the other end is connected with the outer cover 2 through an outer wrapping tube 30. In the present embodiment, a negative pressure pump 31 and a positive pressure pump 32 are provided, and as can be seen from fig. 5, the micro negative pressure pump 31 and the positive pressure pump 32 are fixed in the handle cavity in an aligned manner. The circuit board 36 carrying the microprocessor is also disposed in the inner cavity of the handle 3, and corresponding keys disposed on the circuit board 36 are exposed outside the handle 3 for easy operation. The urinary catheter 25 and the return tube 26 as well as the wiring harness are hermetically wrapped by the sheathing tube; the input end of the controller is connected with the keys, the output end of the controller controls the corresponding pump, and the pump is driven to start and stop by pressing the corresponding keys.

The inlet of the negative pressure pump 31 is connected with the urine tube 35, the outlet is connected with the controllable three-way valve 33 through the connecting liquid discharge tube 50, the outlet of the controllable three-way valve 33 is connected with the urine inlet 13 through the urine discharge tube 25, and the outlet is connected with the return port 23 through the return tube 26. An adjusting lever 34 for switching the output of the controllable three-way valve 33 is exposed out of the handle for easy operation. The inlet of the positive pressure pump 32 is connected with the outlet of the three-way structure 28 through the suction pipe 29, and the outlet of the positive pressure pump 32 is connected with the flexible catheterization cannula 8.

The diversion chamber 5 and the handle are sleeved together through a confluence part, such as a confluence chamber 4 shown in fig. 5, which can be flexibly sleeved at one end of the handle, and can butt the two ends of the flexible catheterization cannula 8 and the two ends of the urine tube 35 before being sleeved. The flexibly installed converging chamber 4 can ensure the repeated use of the electric elements at the rear side of the handle, and only the front side shunting chamber 5 and the accessory parts thereof need to be replaced.

As can be seen from fig. 6, the end of the flexible catheter 8, which is located in the lumen of the handle, is connected to the outlet of the three-way connector 28, and the two inlets of the three-way connector 28 are respectively connected to the suction port 24 and the inlet of the liquid medicine bottle 16. Specifically, a positive pressure pump 32 is connected between the flexible catheterization cannula 8 and the outlet of the three-way joint 28, the inlet of the positive pressure pump 32 is connected with the outlet of the three-way structure 28 through a suction pipe 29, and the outlet of the positive pressure pump 32 is connected with the flexible catheterization cannula 8. A proportion regulating valve 27 is also connected between the outlet of the liquid medicine bottle 16 and the inlet of the three-way joint 28. And the outer cover 2 is sleeved on the top of the accommodating part 1 and covers all pipelines, and the power supply can be a storage battery arranged on the inner side of the outer cover or a power supply connector led out of the outer shell.

When the device is used, urine is drained through a common urethral catheterization tool, the urethral orifice is simply eliminated, the composite tube is implanted into the urethra by disassembling the packaging handheld handle, the shunting chamber is positioned outside the body, the flexible urethral catheterization cannula is guided to be positioned in the bladder, a small amount of residual urine (or no urine) in the early period enters the urine temporary storage chamber through the upper end opening of the composite tube under the action of the negative pressure pump, the residual urine is cleared away (the condition of urine drainage is judged by observing one section of urine tube 35, the window is opened at the handle or the confluence chamber so as to be convenient to observe at the moment), or the three-way valve is switched (the three-way valve can be directly started for a short period of time so as to ensure the urine drainage, and the liquid medicine circulation is realized by the negative. The dosage of the medicine is controlled by a proportional valve, the proportional valve is closed in the early stage and is only used for circular flushing, then the proportion is gradually increased for adding the medicine, the medicine is circularly flushed, and the medicine liquid can be continuously injected when the dosage is insufficient.

The flexible catheterization intubation is pushed to enable the front end of the flexible catheterization intubation to firstly enter the ureter, the flexible catheterization intubation is continuously pushed to enter the ureter to different depths, and the tool is operated under the B-mode or fluoroscopy condition when being inserted into the ureter. The flexible catheterization intubation is provided with a liquid outlet hole at least at the front end position for outputting liquid medicine. In the circulating flushing process, liquid medicine output from the flexible catheterization cannula enters the corresponding depth position of the ureter, then flows into the bladder along with the ureter, enters the composite tube at the bottom of the bladder, and the composite tube guides collected liquid medicine into the circulating chamber through the suction effect of the negative pressure pump to form circulation, and the dosage is adjusted by controlling the proportional valve in the period.

Example 2: on the basis of embodiment 1, a liquid level sensor 43 is further installed at a port of the urethral catheterization cavity located at the upper end of the coincidence tube 6, the liquid level sensor 43 is connected with the signal input end of the controller through a signal line, the three-way joint 28 is an electromagnetic three-way valve, and the output end of the controller is connected with the control end of the electromagnetic three-way valve.

Example 3: another transurethral implantable drug-injection flushing device for the catheter is shown in figure 7 and mainly comprises a containing part 1, an outer cover 2, a handle 3, a shunting chamber 5, a composite tube 6, a supporting tube 7, a flexible catheter 8 and other structural parts.

As shown in fig. 8 and 9, the accommodating member 1 includes a urine temporary storage chamber 11 and a circulation chamber 12, and a liquid medicine bottle 16, wherein the urine temporary storage chamber 11 is used for temporarily storing urine, the upper end thereof is provided with a urine inlet 13, the lower end thereof is provided with a urine discharge port 14 and a valve, and the upper end of the circulation chamber 12 is provided with a return port 23 and a suction port 24. The lateral surface of the upper part of the urine temporary storage chamber 11 is also provided with an overflow pipe joint 15, and the overflow pipe joint 15 is connected with a urine belt. The outer cover 2 is used for being sleeved on the top of the accommodating part 1 and covering all pipelines. One end of the handle 3 is connected with the confluence part, and the other end is connected with the outer cover 2 through an outer wrapping tube 30.

The inner wall of the composite tube 6 is radially distributed with a plurality of radial ribs 41, the flexible catheterization intubation tube 8 is sleeved at the axis position of the composite tube 6 in a matching way and can slide in the composite tube, a catheterization cavity 42 is formed between the adjacent radial ribs 41, the outer side of the upper end part of the composite tube 6 is provided with an air bag 9, and the air bag 9 is led out of the shunting chamber through an inflation and deflation tube 48.

The support tube 7 is fixedly connected to the upper end of the composite tube, the front end of the support tube is connected with a pull rope 39 through a fixing sleeve 38, the pull rope is led out from one of the urethral catheterization cavities 8, and an expansion joint 40 is further arranged on one side wall of the support tube 7 close to the pull rope 39, so that the support tube can be directionally bent along one side of the expansion joint 40 under the action of pull force of the pull rope.

The flexible catheterization intubation tube 8 is sleeved in the composite tube 6 and the supporting tube 7 at the same time, and the exposed end part is provided with a transfusion hole.

The diversion chamber 5 comprises a closed shell, the lower end of the composite tube is sleeved in the shell, the flexible catheterization intubation tube 8 positioned at the inner side of the composite tube is led out from the rear end port of the composite tube, the lower end part of the composite tube is also led out outwards to form a urine tube 35, and the urine tube 35 is communicated with the catheterization cavity 42. In the present embodiment, a pushing mechanism for the flexible catheterization cannula 8 is further provided as shown in fig. 10. As can be seen in the figure, a strip-shaped hole is axially arranged on the side wall of the shunting chamber 5, axial outer chutes 44 are arranged on the two side walls of the strip-shaped hole, and a shaft sleeve of a rotating shaft part of a clamp 45 protrudes outwards and is sleeved in the axial outer chutes 44 in a matching manner, so that the clamp 45 is pushed to move forwards and backwards. The portion of the clip 45 inside the diversion chamber is used to grip the flexible urinary catheter 8, and the inner surface of the clip may be coated with a rubber layer to provide cushioning and grip resistance. After the clamp and the flexible catheterization cannula 8 are clamped, the pushing clamp can carry the flexible catheterization cannula 8 to move forwards along the axial direction, the clamp is loosened to pull backwards to clamp the flexible catheterization cannula 8 again, and the flexible catheterization cannula 8 can be pushed or pulled out through repeated operation. Thereby changing the position of the flexible catheterization cannula 8 in the ureter.

As can be seen from FIG. 7, the confluence part adopted by the present embodiment is that a confluence joint 51 is connected to the middle part of the envelope tube 6, and the flexible catheterization cannula 8 is led into the envelope tube and then into the outer cover 2 from the confluence joint 51.

The present embodiment further comprises a negative pressure pump 31 disposed in the housing 2 (or in the inner cavity of the handle), as shown in fig. 8, the inlet of which is connected to the urine tube 35, the outlet of which is connected to the controllable three-way valve 33 via a connecting liquid discharge tube 50, the first outlet of the controllable three-way valve 33 is connected to the urine inlet 13 via a urine discharge tube 25, and the second outlet is connected to the return port 23 via a return tube 26. The lower end of the flexible catheterization intubation 8 is connected with the outlet of a three-way joint 28, and two inlets of the three-way joint 28 are respectively connected with the suction port 24 and the inlet of the liquid medicine bottle 16; the urinary catheter 25 and the return tube 26 as well as the wiring harness are hermetically wrapped by the sheathing tube; the input end of the controller is connected with the keys, the output end of the controller controls the corresponding pump, and the pump is driven to start and stop by pressing the corresponding keys. Further, a proportion regulating valve 27 is connected between the outlet of the liquid medicine bottle 16 and the inlet of the three-way joint 28.

Example 4: in addition to the embodiment 3, a positive pressure pump 32 is further added in the outer cover, the positive pressure pump 32 is connected between the flexible catheterization cannula 8 and the outlet of the three-way joint 28, the inlet of the positive pressure pump 32 is connected with the outlet of the three-way joint 28 through the suction pipe 29, and the outlet of the positive pressure pump 32 is connected with the flexible catheterization cannula 8. A liquid level sensor 43 is arranged at one end of the urethral catheterization cavity positioned at the upper end of the coincidence pipe 6, the liquid level sensor 43 is connected with the signal input end of the controller through a signal line, the adopted three-way joint 28 is an electromagnetic three-way valve, and the output end of the controller is connected with the control end of the electromagnetic three-way valve.

Example 5: on the basis of example 3, a pushing mechanism for the flexible catheterization cannula 8 is provided as shown in fig. 11 and 12. The pushing mechanism is different from the embodiment 3, the pushing mechanism comprises a driven concave wheel 46 and a manual concave wheel 47, the middle parts of the two wheels are inwards concave, the two wheels respectively press the flexible catheterization cannula 8 from two sides, the manual concave wheel 47 is partially exposed out of the shunting chamber 5, and the flexible catheterization cannula 8 can be driven to advance or retreat by fluctuating the manual concave wheel 47.

On the basis of the above embodiments, the corresponding components and structural positions are configured as required, and still fall within the scope covered by the technical solution of the present invention. For example, the installation positions of the positive pressure pump and the negative pressure pump are changed, the positions of the joints of the pipelines are changed, the corresponding forms of the composite pipes are changed, and the like. And when only the negative pressure pump is adopted on the basis of the embodiment 1, the negative pressure pump causes moderate negative pressure in the bladder and the ureter, and the circulating chamber becomes moderate positive pressure, so that the liquid or the liquid medicine in the circulating chamber is promoted to directly enter the bladder or the ureter, and the application mode of the scheme is also included when the positive pressure pump is not needed. And, connecting the individual lines directly to the receiving part instead of via the handle should also be subject to simple changes in the respective parts and structural position.

Claims (6)

1. A transurethral implantable urethral catheter medicine injection flushing device is characterized by comprising an accommodating part (1), an outer cover (2), a handle (3), a flow dividing chamber (5), a composite tube (6), a support tube (7) and a flexible urethral catheterization cannula (8), wherein the accommodating part (1) comprises a temporary urine storage chamber (11), a circulation chamber (12) and a liquid medicine bottle (16), the temporary urine storage chamber (11) is used for temporarily storing urine, the upper end of the temporary urine storage chamber is provided with a urine inlet (13), the lower end of the temporary urine storage chamber is provided with a urine discharge port (14) and a valve, the upper end of the circulation chamber (12) is provided with a return port (23) and a suction port (24), and the outer cover (2) is used for being sleeved on the top of the accommodating part (1) and covering pipelines; one end of the handle (3) is connected with the confluence part, the other end of the handle is connected with the outer cover (2) through an outer wrapping tube (30), a plurality of radial ribs (41) are radially distributed on the inner wall of the composite tube (6), the flexible catheterization cannula (8) is sleeved at the axis position of the composite tube (6) in a matching way and can slide in the composite tube, a catheterization cavity (42) is formed between every two adjacent radial ribs (41), an air bag (9) is arranged on the outer side of the upper end part of the composite tube (6), and the air bag (9) is led out of the shunt chamber through an inflation and deflation tube (48); the supporting tube (7) is fixedly connected to the upper end of the composite tube, the front end of the supporting tube is connected with a pull rope (39) through a fixing sleeve (38), the pull rope is led out from one of the urethral catheterization cavities (8), and an expansion joint (40) is further arranged on one side, close to the pull rope (39), of the side wall of the supporting tube (7), so that the supporting tube can be directionally bent along one side of the expansion joint (40) under the action of pull force of the pull rope; the flexible catheterization intubation tube (8) is sleeved in the composite tube (6) and the supporting tube (7) at the same time, the exposed end part is provided with a transfusion hole, the shunting chamber (5) comprises a closed shell, the lower end of the composite tube is sleeved in the shell, the flexible catheterization intubation tube (8) positioned at the inner side of the composite tube is led out from the rear port of the composite tube, the lower end part of the composite tube is also led out outwards to form a urine tube (35), and the urine tube (35) is communicated with the catheterization cavity (42); the device also comprises a negative pressure pump (31), the inlet of the negative pressure pump is connected with the urine tube (35), the outlet of the negative pressure pump is connected with a controllable three-way valve (33) through a liquid discharge tube (50), the first outlet of the controllable three-way valve (33) is connected with the urine inlet (13) through a urine discharge tube (25), the second outlet of the controllable three-way valve is connected with the return port (23) through a return tube (26), the lower end of the flexible urethral catheterization cannula (8) is connected with the outlet of a three-way joint (28), and the two inlets of the three-way joint (28) are respectively connected with the suction port (24) and the inlet; the urinary catheter (25), the return pipe (26) and the wiring harness are hermetically wrapped by the wrapper; the input end of the controller is connected with the keys, the output end of the controller controls the corresponding motor, and the motor is driven to start and stop by pressing the corresponding keys.

2. The transurethral implantable catheter drug-injection flushing device according to claim 1, characterized in that a proportional control valve (27) is connected between the outlet of the drug liquid bottle (16) and the inlet of the three-way joint (28).

3. The transurethral implantable catheter drug injection flushing device according to claim 1, characterized in that a positive pressure pump (32) is further connected between the flexible catheterization cannula (8) and the outlet of the three-way joint (28), the inlet of the positive pressure pump (32) is connected with the outlet of the three-way joint (28) through a suction pipe (29), and the outlet of the positive pressure pump (32) is connected with the flexible catheterization cannula (8).

4. The transurethral implantable catheter drug-injection and irrigation device as claimed in claim 1 or 3, wherein the positive pressure pump (31) or the negative pressure pump (32) is fixedly installed in the inner cavity of the handle.

5. A transurethral implantable urethral catheter drug-injection flushing device according to claim 1, characterized in that a urethral catheterization cavity port at the upper end of the coincidence tube (6) is provided with a liquid level sensor (43), the liquid level sensor (43) is connected with the signal input end of a controller through a signal line, the three-way joint (28) is an electromagnetic three-way valve, and the output end of the controller is connected with the control end of the electromagnetic three-way valve.

6. The transurethral implantable urinary catheter drug injection flushing device according to claim 1, wherein the lateral surface of the upper part of the urine temporary storage chamber (11) is further provided with an overflow pipe joint (15), and the overflow pipe joint (15) is connected with a urine belt.

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