CN215961697U - Urethral stricture administration ureter - Google Patents
Urethral stricture administration ureter Download PDFInfo
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- CN215961697U CN215961697U CN202121157519.2U CN202121157519U CN215961697U CN 215961697 U CN215961697 U CN 215961697U CN 202121157519 U CN202121157519 U CN 202121157519U CN 215961697 U CN215961697 U CN 215961697U
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Abstract
The utility model discloses a drug delivery ureter for urethral stricture, which comprises a visible urethral stricture sacculus dilator and a ureter, wherein a ureter fixing mechanism, a urethral stricture anastomosis position limiting mechanism and a drug delivery mechanism are arranged on a ureter cavity; the visual urethral stricture balloon dilator is used for dilating the urethral stricture part and guiding a urinary catheter to smoothly pass through the urethral stricture part; the urinary catheter fixing mechanism is used for fixing a urinary catheter when the urinary catheter is indwelling, the position limiting mechanism at the urethral stricture anastomosis opening is used for fixing the position of the urethral stricture drug delivery urinary catheter and the position of the urethral stricture anastomosis opening relatively, and the drug delivery mechanism is used for delivering drugs to the adsorption sponge; when the urethral canal is used, 5-fluorouracil and glucocorticoid are led into the urethral stricture repair wound through the urethral stricture drug delivery urethral canal, and the mesh silica gel capsule on the surface of the drug delivery air bag is utilized to press the urethral stricture repair wound for treating the urethral stricture and preventing the recurrence of scars, so that the pain and the economic burden of a patient are relieved, and the urethral canal has the characteristic of good support drug delivery effect.
Description
Technical Field
The utility model relates to the technical field of medical and health instruments, in particular to a drug delivery urinary catheter for urethral stricture.
Background
Urethral stricture is a common lower urinary tract disease of men, and causes thereof include perineal injury, iatrogenic injury, chronic inflammation and the like; the natural course of urethral stricture usually begins with an injury and inflammatory reaction of the urethral mucosa, followed by abnormal proliferation of extracellular matrix accompanying the injury site, scarring leading to reduction of the urethral lumen and difficulty in urination; the difficulty in treating the disease lies in the rather high postoperative stenosis recurrence rate, so how to prevent the recurrence after urethral stricture surgery becomes the research focus in the field of lower urinary tract reconstruction; to date, there have been few studies on prevention of recurrence of urethral stricture by drugs, and there has been no consensus on efficacy and safety, so that the method has not been widely used clinically;
5 Fluorouracil (5-fluorouracil,5-FU) in combination with glucocorticoids is one of the most recent advances in scar treatment, and in addition, scar treatment can also be treated by silica gel compression; at present, the situation that medicines are difficult to retain in the urethra can occur when the medicines are injected at the anastomotic site or sprayed on the surface of the urinary catheter after the urethral stricture operation, the medicines can not continuously soak the anastomotic site at a certain concentration for an effective time, and in addition, the silica gel material on the surface of the urinary catheter can not provide proper pressure for the wound surface of the urethral stricture repair, so that the cicatricial repair of the anastomotic site is caused, and the urethral stricture recurs;
therefore, a urethral catheter for urethral stricture administration is urgently needed, 5-fluorouracil (5-fluorouricil, 5-FU) and glucocorticoid are introduced into a urethral stricture repair wound, and a silica gel material is utilized to press urethral stricture repair wound to treat urethral stricture and prevent scar recurrence.
SUMMERY OF THE UTILITY MODEL
Aiming at the existing problems, the utility model aims to provide a urethral stricture drug delivery catheter, 5 fluorouracil and glucocorticoid are introduced into a urethral stricture repair wound through the urethral stricture drug delivery catheter, and a reticular silica gel capsule on the surface of a drug delivery air bag is utilized to press the urethral stricture repair wound, so that the urethral stricture treatment catheter is used for treating urethral stricture and preventing scar recurrence, and good curative effect is ensured, thereby relieving the pain and economic burden of patients, and having the characteristics of good drug delivery supporting effect and simple and convenient use.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
a drug delivery urinary catheter for urethral stricture comprises a urinary catheter, a urinary catheter fixing mechanism, a urethral stricture anastomosis position limiting mechanism, a drug delivery mechanism and a urethral stricture visual balloon dilator, wherein the urinary catheter fixing mechanism, the urethral stricture anastomosis position limiting mechanism, the drug delivery mechanism and the urethral stricture visual balloon dilator are arranged on a urinary catheter cavity;
the urinary catheter fixing mechanism comprises a urinary catheter air bag, a urinary catheter air bag air inlet pipe and a urinary catheter air bag inlet, the urinary catheter air bag is arranged on a urinary catheter, one end of the urinary catheter air bag air inlet pipe is connected with the urinary catheter air bag, and the other end of the urinary catheter air bag air inlet pipe is provided with the urinary catheter air bag inlet;
the limiting mechanism at the urethral stricture anastomosis site comprises a dosing air bag, an adsorption sponge, a dosing air bag air inlet pipe, a dosing air bag pressure display and a dosing air bag air inlet, wherein the dosing air bag is arranged at the outer side part of the right end of the ureter air bag, the adsorption sponge is arranged on the dosing air bag, a mesh silica gel capsule on the surface of the dosing air bag covers the urethral contact surface of the adsorption sponge, one end of the dosing air bag air inlet pipe is connected with the dosing air bag, and the other end of the dosing air bag air inlet pipe is provided with the dosing air bag air inlet and the pressure display;
the drug delivery mechanism comprises a drug sampling tube and a constant-pressure infusion pump, wherein one end of the drug sampling tube is connected with the adsorption sponge, the other end of the drug sampling tube is connected with the constant-pressure infusion pump, and drugs are filled in the constant-pressure infusion pump;
the visual sacculus expander for urethral stricture is arranged in an inner cavity of a ureter and comprises a urethral stricture mirror body, a urethral stricture visual system arranged on the urethral stricture mirror body, and a urethral stricture expanding mechanism and a guiding system which are arranged in a working channel of the urethral stricture mirror body.
Preferably, the ureter be hollow tubulose, and be provided with the side opening on the left end lumen lateral wall of ureter, the ureter gasbag sets up the right side at the side opening.
Preferably, the position of the drug delivery balloon on the urinary catheter comprises a posterior urethra, an anterior urethra and a full urethra according to the position of the urethral stricture part of the patient.
Preferably, the urethral stricture dilation mechanism comprises a stricture dilation balloon and a stricture dilation balloon air inlet pipe, the stricture dilation balloon is arranged on the outer side of the safety guide wire and is communicated with one end of the stricture dilation balloon air inlet pipe, and a stricture dilation pressure display is further arranged at a stricture dilation air inlet at the other end of the stricture dilation balloon air inlet pipe; the guiding system comprises a safe guide wire working channel and a safe guide wire, the safe guide wire working channel is arranged in the urethral stricture endoscope body, and the safe guide wire is movably connected in the safe guide wire working channel in a penetrating mode.
Preferably, the guiding system comprises a visible light source optical fiber and a camera data line, a visible light source is arranged at the tail end of the visible light source optical fiber, a camera is arranged at the tail end of the camera data line, and the other tail ends of the visible light source optical fiber and the camera data line are both connected with the display screen.
Preferably, the end part of the tube opening of the inlet of the ureteral air bag is provided with a ureteral air bag air inlet valve, and the end part of the tube opening of the air inlet of the drug administration air bag is provided with a drug administration air bag air inlet valve; and the end part of the pipe orifice of the narrow expansion air bag air inlet pipe is provided with a narrow expansion air bag air inlet valve.
Preferably, the outer diameter of the ureter is 8mm, the inner diameter of the ureter is 5mm, and the length of the ureter is 30 cm; the length of the drug delivery air bag is 4-8cm, the maximum outer diameter is 8mm, and the outer diameter reaches 10mm after inflation; the thickness of the adsorption sponge is 0.25 cm; the external diameter of the body of the visual saccule dilator for urethral stricture is 5mm, and the length is 70 cm.
Preferably, the administration air bag both sides be provided with protruding circle, form the draw-in groove between two protruding circles that the symmetry set up, the absorption sponge block is in the draw-in groove.
A method of using a urethral catheter for administering a urethral stricture, comprising the steps of:
s1, determining a urethral stricture part according to a preoperative urethrography result, selecting a corresponding urethral stricture drug delivery ureter model, and ensuring that an absorption sponge covers a urethral stricture anastomosis opening;
s2, passing the visual balloon dilator for urethral stricture through a urethral catheterization lumen of a drug delivery catheter for urethral stricture before use; the visual sacculus dilator for the urethral stricture is placed from the urethral orifice, the visual sacculus dilator for the urethral stricture reaches the urethral stricture part under the guidance of a display of the visual sacculus dilator for the urethral stricture, the safety guide wire passes through the urethral stricture part under direct vision, the visual sacculus dilator for the urethral stricture passes through the urethral stricture part under the guidance of the safety guide wire and continues to enter the bladder, the indwelling safety guide wire slowly retreats from the scope to the far end of the urethral stricture, the safety guide wire is adjusted under direct vision to position the dilation air sac for the urethral stricture at the urethral stricture part, and the urethral stricture dilation air sac dilates the urethral stricture part;
s3, continuing to enter the endoscope to reach the bladder after successfully dilating the urethral stricture part, pushing the ureter into the bladder along the urethral stricture visual balloon dilator body, and withdrawing the urethral stricture visual balloon dilator;
s4, slowly inflating 10-15ml of the ureter air bag to fix the ureter so as to prevent the ureter from falling off, connecting a drainage bag, and draining urine;
s5, slightly drawing the ureter outwards, slowly inflating the air inlet of the drug delivery air bag, driving the adsorption sponge to expand along with the drug delivery air bag, and observing the reading of the pressure display;
s6, stopping inflating until the adsorption sponge is properly contacted with the urethral stricture anastomotic stoma after inflation, and maintaining the pressure of the administration air bag so that the medicine filled in the adsorption sponge can be contacted with the urethral stricture anastomotic stoma;
s7, after inflation, 5-10ml of medicine is infused into the adsorption sponge through a constant pressure infusion pump every day, and the ureter is pulled out after the ureter is indwelling for 2-4 weeks;
wherein: the medicine of step S7 includes a medicine for inhibiting scar growth, and the medicine for inhibiting scar growth is 5-fluorouracil or glucocorticoid.
The utility model has the beneficial effects that: the utility model discloses a drug delivery catheter for urethral stricture, which is improved in that:
(1) the utility model designs a drug delivery urinary catheter for urethral stricture, which comprises a urethral stricture expansion mechanism, a urinary catheter fixing mechanism, a urethral stricture anastomosis position limiting mechanism and a drug delivery mechanism, wherein when the drug delivery urinary catheter is used, the urethral stricture position is safely expanded under direct vision, drugs are continuously supplemented on an adsorption sponge through the drug delivery mechanism, and the adsorption sponge can continuously retain 5 fluorouracil combined glucocorticoid liquid at the anastomosis position to the maximum extent through a drug delivery air bag and continuously soak the anastomosis position at a certain concentration, so that the recovery and healing of wounds are facilitated;
(2) meanwhile, the reticular silica gel capsule covered by the contact surface of the adsorption sponge urethra can continuously apply proper pressure to the urethral stricture repair wound surface, and reduce the recurrence of urethral stricture; thereby relieving the pain and economic burden of the patients;
(3) the visual sacculus expander for urethral stricture is arranged in a ureter, when the visual sacculus expander for urethral stricture is used, the ureter 1 is guided into a patient by using a guide system, the visual system for urethral stricture is used for observing the position of the patient at which the ureter is guided into the patient, so that the position of the ureter guided into the patient is accurately positioned, later treatment is performed, the ureter continues to enter a lens to reach a bladder after the urethral stricture is successfully expanded, the ureter is pushed into the bladder along the visual sacculus expander for urethral stricture, and the visual sacculus expander for urethral stricture exits.
Drawings
Fig. 1 is a schematic structural view of a urethral catheter for administering drug to urethral stricture according to the present invention.
Fig. 2 is a sectional view of a urethral catheter for administering urethral stricture in accordance with the present invention.
Fig. 3 is a structural schematic diagram of the visual balloon dilator for urethral stricture.
Wherein: 1. a ureter, 2 side holes, 3 a ureter air sac, 4 a ureter air sac air inlet pipe, 5 a ureter air sac air inlet valve, 6 a ureter air sac inlet, 7 a drug delivery air sac, 71 a clamping groove, 72 a convex ring, 8 a drug delivery air sac surface reticular silica gel capsule, 9 an adsorption sponge, 10 a drug sample inlet pipe, 11 a drug delivery air sac air inlet pipe, 12 a constant pressure perfusion pump, 13 a drug, 14 a drug delivery air sac pressure display, 15 a drug delivery air sac air inlet valve, 16 a drug delivery air sac air inlet, 17 a visible light source, 18 a camera, 19 a stenosis expansion air sac, 20 a stenosis expansion air sac air inlet pipe, 21 a stenosis expansion pressure display, 22 a stenosis expansion air inlet, 23 a stenosis expansion air sac air inlet valve, 24 a display screen, 25 a visible light source optical fiber, 26 a camera data line, 27 a hydrophilic guide wire working channel, 28. urethral stricture endoscope body, 29. hydrophilic guide wire.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following further describes the technical solution of the present invention with reference to the drawings and the embodiments.
1-3, the drug delivery urinary catheter for urethral stricture comprises a urinary catheter 1, a urinary catheter fixing mechanism, a urethral stricture anastomosis position limiting mechanism, a drug delivery mechanism and a urethral stricture visual balloon dilator, wherein the urinary catheter fixing mechanism, the urethral stricture anastomosis position limiting mechanism, the drug delivery mechanism and the urethral stricture visual balloon dilator are arranged on a lumen of the urinary catheter 1;
the ureter fixing mechanism is used for fixing the urethra when a ureter 1 is left after a urethral stricture operation, and specifically comprises a ureter air bag 3, a ureter air bag air inlet pipe 4 and a ureter air bag inlet 6, wherein the ureter air bag 3 is arranged on the outer side wall of the ureter 1, one end of the ureter air bag air inlet pipe 4 is connected with the ureter air bag 3, the other end of the ureter air bag air inlet pipe 4 is provided with the ureter air bag inlet 6, and slow inflation is performed through the ureter air bag inlet 6, so that the ureter air bag 3 gradually expands in the bladder to fix the urethra;
urethra stenosis coincide department stop gear is used for dosing the position of ureter and urethra stenosis coincide mouth relatively with urethra stenosis to fix for 5 fluorouracil unites glucocorticoid liquid by furthest's reservation in coincide department, promotes wound healing, prevents scar formation simultaneously, urethra stenosis coincide department stop gear specifically includes dosing gasbag 7, dosing gasbag surface mesh silica gel capsule 8, adsorbs sponge 9, dosing gasbag intake pipe 11, dosing gasbag pressure display 14 and dosing gasbag air inlet 16, dosing gasbag 7 sets up the right-hand member outside portion at ureter gasbag 3, adsorb sponge 9 sets up on dosing gasbag 7, the urethra contact surface of adsorbing sponge 9 coats and is stamped dosing gasbag surface mesh silica gel capsule 8, the one end of dosing gasbag intake pipe 11 links to each other with dosing gasbag 7, the other end of dosing gasbag intake pipe 11 is provided with dosing gasbag air inlet 16 and pressure display 14, namely, when in use, the drug administration air bag air inlet 16 is inflated to ensure that the adsorption sponge 9 expands under the action of the drug administration air bag 7, and the inflation is stopped when the adsorption sponge 9 is inflated to be properly contacted with the urethral stricture anastomotic stoma by observing the indication number of the pressure display 14, and the pressure of the drug administration air bag 7 is maintained, so that the drug 13 poured on the adsorption sponge 9 can be contacted with the urethral stricture anastomotic stoma, and the proper pressure is maintained to promote the urethral stricture anastomotic stoma to heal and prevent the scar from forming;
the administration mechanism is used for uninterruptedly supplying medicine to the adsorption sponge 9 and comprises a medicine sampling tube 10 and a constant-pressure perfusion pump 12, one end of the medicine sampling tube 10 is connected with the adsorption sponge 9, the other end of the medicine sampling tube 10 is connected with the constant-pressure perfusion pump 12, the constant-pressure perfusion pump 12 is filled with medicine 13, and when the administration mechanism is used, the constant-pressure perfusion pump 12 continuously injects the medicine 13 into the adsorption sponge 9 through the medicine sampling tube 10 to promote the healing of a urethral stricture anastomotic stoma and prevent the formation of scars;
the visual sacculus expander of urethral stricture sets up in the inner chamber of ureter 1, including the urethral stricture mirror body 28 to and the urethral stricture expanding mechanism, the bootstrap system in the visual system of urethra and the working channel of urethra setting on the urethral stricture mirror body 28, when using, will ureter 1 is internal to the patient through utilizing bootstrap system, utilizes the visual system of urethra to teach narrow department to observe and accurate expansion to the patient simultaneously, so that the treatment.
Preferably, for making ureter 1 play the water conservancy diversion effect, will ureter 1 designs for the cavity tubulose, and is provided with side opening 2 on the left end lumen lateral wall of ureter 1, and side opening 2 plays the water conservancy diversion effect, comes with the urine drainage of bladder the inside, ureter gasbag 3 sets up the right side at side opening 2.
Preferably, in a specific operation, the position of the administration balloon 7 on the urinary catheter 1 includes a posterior urethra, an anterior urethra and a full urethra according to the position of the urethral stricture site of a patient.
Preferably, still be provided with visual working channel in the narrow mirror body 28 of urethra, be provided with visual light source optic fibre 25 and camera data line 26 in the visual working channel, the end of visual light source optic fibre 25 is provided with visual light source 17, and the end of camera data line 26 is provided with camera 18, just another end of visual light source optic fibre 25 and camera data line 26 all is connected with display screen 24, during the use, uses through display screen 24 and visual light source 17 and camera 18 cooperation, observes the narrow position of patient's urethra.
Preferably, in order to ensure the guiding effect of the urethral stricture dilating mechanism, the urethral stricture dilating mechanism precisely dilates the urethral stricture part, the urethral stricture dilating mechanism comprises a stricture dilating balloon 19 and a stricture dilating balloon air inlet tube 20, the stricture dilating balloon 19 is arranged outside the safety guide wire 29 and is communicated with one end of the stricture dilating balloon air inlet tube 20, and a stricture dilating pressure display 21 is further arranged at a stricture dilating air inlet 22 at the other end of the stricture dilating balloon air inlet tube 20; the guiding system comprises a safe guide wire working channel 27 and a safe guide wire 29, the safe guide wire working channel 27 is arranged in a urethral stricture endoscope body 28, the safe guide wire 29 is movably connected in the safe guide wire working channel 27 in a penetrating way, namely, when in use, the urethrostenosis mirror body 28 reaches the urethrostenosis part under the guidance of the display screen 24 of the visual saccule dilator for the urethrostenosis, the safety guide wire 29 is passed through the urethrostenosis part under direct vision, the visual balloon dilator body 28 for urethral stricture is guided by the hydrophilic guide wire 29 to pass through the urethral stricture part and reach the bladder, the position of the safe guide wire is adjusted under direct vision by the display screen 24 after the indwelling safe guide wire is withdrawn to the far end of the urethral stricture, so that the urethral stricture expansion air sac is positioned at the urethral stricture part to inflate the stricture expansion air inlet 22, the stricture expanding balloon 19 is expanded, and the urethral stricture portion is expanded by the urethral stricture expanding balloon 19.
Preferably, in order to prevent the air flow in the ureteral air sac inlet 6 and the administration air sac air inlet 16 from flowing back during and after the inflation, which affects the use effect, a ureteral air sac air inlet valve 5 is arranged at the end part of the tube orifice of the ureteral air sac inlet 6, and an administration air sac air inlet valve 15 is arranged at the end part of the tube orifice of the administration air sac air inlet 16; a stenotic and dilatant balloon intake flap 23 is provided at the end of the nozzle of the stenotic and dilatant balloon intake tube 20.
Preferably, in the urinary catheter for urethral stricture drug delivery, the urinary catheter 1, the urinary catheter air bag 3, the urinary catheter air bag air inlet pipe 4, the urinary catheter air bag inlet 6, the drug delivery air bag 7, the drug delivery air bag surface mesh-shaped silica gel capsule 8, the adsorption sponge 9, the drug sampling pipe 10, the drug delivery air bag air inlet pipe 11, the drug delivery air bag air inlet 16 and the like are all made of silica gel materials.
Preferably, the urinary catheter 1 is designed to have an outer diameter of 8mm, an inner diameter of 5mm and a length of 30cm for easy use.
Preferably, the length of the administration balloon 7 is 4-8cm, the maximum outer diameter is 8mm, and the outer diameter reaches 10mm after inflation.
Preferably, for fixing the reticular silica gel capsule 8 and the adsorption sponge 9 on the surface of the administration air bag and ensuring the supporting and administration effects, the two sides of the administration air bag 7 are provided with convex rings 72, a clamping groove 71 is formed between the two symmetrically arranged convex rings 72, and the adsorption sponge 9 is clamped in the clamping groove 71.
Preferably, the thickness of the adsorption sponge 9 is 0.25 cm.
Preferably, the visual balloon dilator for urethral stricture has an outer diameter of 5mm and a length of 70 cm.
The utility model discloses a using method of a urethral canal for urethral stricture drug delivery, which comprises the following steps:
s1, determining a urethral stricture part according to a preoperative urethrography result, selecting a corresponding urethral stricture drug delivery ureter model, and ensuring that an absorption sponge covers a urethral stricture anastomosis opening;
s2, passing the visual balloon dilator for urethral stricture through a urethral catheterization lumen of a drug delivery catheter for urethral stricture before use; the visual sacculus dilator for the urethral stricture is placed from the urethral orifice, the visual sacculus dilator for the urethral stricture reaches the urethral stricture part under the guidance of a display of the visual sacculus dilator for the urethral stricture, the safety guide wire passes through the urethral stricture part under direct vision, the visual sacculus dilator for the urethral stricture passes through the urethral stricture part under the guidance of the safety guide wire and continues to enter the bladder, the indwelling safety guide wire slowly retreats from the scope to the far end of the urethral stricture, the safety guide wire is adjusted under direct vision to position the dilation air sac for the urethral stricture at the urethral stricture part, and the urethral stricture dilation air sac dilates the urethral stricture part;
s3, continuing to enter the endoscope to reach the bladder after successfully dilating the urethral stricture part, pushing the ureter into the bladder along the urethral stricture visual balloon dilator body, and withdrawing the urethral stricture visual balloon dilator;
s4, slowly inflating 10-15ml of the ureter air bag to fix the ureter so as to prevent the ureter from falling off, connecting a drainage bag, and draining urine;
s5, slightly drawing the ureter outwards, slowly inflating the air inlet of the drug delivery air bag, driving the adsorption sponge to expand along with the drug delivery air bag, and observing the reading of the pressure display;
s6, stopping inflating until the adsorption sponge is properly contacted with the urethral stricture anastomotic stoma after inflation, and maintaining the pressure of the administration air bag so that the medicine filled in the adsorption sponge can be contacted with the urethral stricture anastomotic stoma;
s7, after inflation, 5-10ml of medicine is infused into the adsorption sponge through a constant pressure infusion pump every day, and the ureter is pulled out after indwelling the ureter for 2-4 weeks.
Preferably, the medicine in step S7 includes a medicine for inhibiting scar growth, and the medicine for inhibiting scar growth is 5-fluorouracil or glucocorticoid.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. A urethral tube for administering drug to urethral stricture, characterized in that: the urethral stricture drug administration ureter comprises a ureter (1), a ureter fixing mechanism, a urethral stricture anastomosis position limiting mechanism, a drug administration mechanism and a urethral stricture visible balloon dilator, wherein the ureter fixing mechanism, the urethral stricture anastomosis position limiting mechanism, the drug administration mechanism and the urethral stricture visible balloon dilator are arranged on a lumen of the ureter (1);
the ureter fixing mechanism comprises a ureter air bag (3), a ureter air bag air inlet pipe (4) and a ureter air bag inlet (6), the ureter air bag (3) is arranged on the ureter (1), one end of the ureter air bag air inlet pipe (4) is connected with the ureter air bag (3), and the other end of the ureter air bag air inlet pipe (4) is provided with the ureter air bag inlet (6);
the limiting mechanism at the narrow anastomosis of urethra comprises a drug administration air bag (7), an adsorption sponge (9), a drug administration air bag air inlet pipe (11), a drug administration air bag pressure display (14) and a drug administration air bag air inlet (16), wherein the drug administration air bag (7) is arranged at the outer side part of the right end of the urinary catheter air bag (3), the adsorption sponge (9) is arranged on the drug administration air bag (7), a drug administration air bag surface reticular silica gel capsule (8) covers the urethral contact surface of the adsorption sponge (9), one end of the drug administration air bag air inlet pipe (11) is connected with the drug administration air bag (7), and the other end of the drug administration air bag air inlet pipe (11) is provided with the drug administration air bag air inlet (16) and the pressure display (14);
the drug delivery mechanism comprises a drug sampling tube (10) and a constant-pressure infusion pump (12), one end of the drug sampling tube (10) is connected with the adsorption sponge (9), the other end of the drug sampling tube (10) is connected with the constant-pressure infusion pump (12), and a drug (13) is filled in the constant-pressure infusion pump (12);
the visual sacculus dilator for urethral stricture is arranged in an inner cavity of a ureter (1) and comprises a urethral stricture mirror body (28), a urethral visual system arranged on the urethral stricture mirror body (28), and a urethral stricture dilating mechanism and a guiding system arranged in a working channel of the urethral stricture mirror body.
2. The urethral stricture drug delivery catheter as set forth in claim 1, wherein: ureter (1) be cavity tubulose, and be provided with side opening (2) on the left end lumen lateral wall of ureter (1), ureter gasbag (3) set up the right side at side opening (2).
3. The urethral stricture drug delivery catheter as set forth in claim 1, wherein: the positions of the drug delivery air bag (7) on the urinary catheter (1) comprise a posterior urethra, an anterior urethra and a full urethra according to the position of the urethral stricture part of a patient.
4. The urethral stricture drug delivery catheter as set forth in claim 1, wherein: the urethral stricture expanding mechanism comprises a stricture expanding air bag (19) and a stricture expanding air bag air inlet pipe (20), the stricture expanding air bag (19) is arranged on the outer side of the safety guide wire (29) and is communicated with one end of the stricture expanding air bag air inlet pipe (20), and a stricture expanding pressure display (21) is further arranged at a stricture expanding air inlet (22) at the other end of the stricture expanding air bag air inlet pipe (20); the guiding system comprises a safety guide wire working channel (27) and a safety guide wire (29), wherein the safety guide wire working channel (27) is arranged in a urethral stricture endoscope body (28), and the safety guide wire (29) is movably connected in the safety guide wire working channel (27) in a penetrating mode.
5. The urethral stricture drug delivery catheter as set forth in claim 4, wherein: the guiding system comprises a visible light source optical fiber (25) and a camera data line (26), a visible light source (17) is arranged at the tail end of the visible light source optical fiber (25), a camera (18) is arranged at the tail end of the camera data line (26), and the other tail ends of the visible light source optical fiber (25) and the camera data line (26) are connected with a display screen (24).
6. The urethral stricture drug delivery catheter as set forth in claim 4, wherein: a ureter air bag air inlet valve (5) is arranged at the end part of the tube opening of the ureter air bag inlet (6), and a drug administration air bag air inlet valve (15) is arranged at the end part of the tube opening of the drug administration air bag air inlet (16); the end part of the pipe orifice of the narrow expansion air bag air inlet pipe (20) is provided with a narrow expansion air bag air inlet valve (23).
7. The urethral stricture drug delivery catheter as set forth in claim 1, wherein: the outer diameter of the ureter (1) is 8mm, the inner diameter is 5mm, and the length is 30 cm; the length of the administration air bag (7) is 4-8cm, the maximum outer diameter is 8mm, and the outer diameter reaches 10mm after inflation; the thickness of the adsorption sponge (9) is 0.25 cm; the external diameter of the body of the visual saccule dilator for urethral stricture is 5mm, and the length is 70 cm.
8. The urethral stricture drug delivery catheter as set forth in claim 1, wherein: protruding rings (72) are arranged on two sides of the administration air bag (7), a clamping groove (71) is formed between the two symmetrically-arranged protruding rings (72), and the adsorption sponge (9) is clamped in the clamping groove (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121157519.2U CN215961697U (en) | 2021-05-27 | 2021-05-27 | Urethral stricture administration ureter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121157519.2U CN215961697U (en) | 2021-05-27 | 2021-05-27 | Urethral stricture administration ureter |
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| Publication Number | Publication Date |
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| CN215961697U true CN215961697U (en) | 2022-03-08 |
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| CN202121157519.2U Active CN215961697U (en) | 2021-05-27 | 2021-05-27 | Urethral stricture administration ureter |
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2021
- 2021-05-27 CN CN202121157519.2U patent/CN215961697U/en active Active
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