CN110860025A - Urethral dilatation catheter for urethral stricture and using method thereof - Google Patents
Urethral dilatation catheter for urethral stricture and using method thereof Download PDFInfo
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- CN110860025A CN110860025A CN201911190743.9A CN201911190743A CN110860025A CN 110860025 A CN110860025 A CN 110860025A CN 201911190743 A CN201911190743 A CN 201911190743A CN 110860025 A CN110860025 A CN 110860025A
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- water injection
- injection tube
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- 201000001988 urethral stricture Diseases 0.000 title claims abstract description 36
- 206010065584 Urethral stenosis Diseases 0.000 title claims abstract description 29
- 206010046442 Urethral dilatation Diseases 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 59
- 238000002347 injection Methods 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 23
- 230000010339 dilation Effects 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 14
- 210000003899 penis Anatomy 0.000 claims description 12
- 210000002640 perineum Anatomy 0.000 claims description 11
- 210000002700 urine Anatomy 0.000 claims description 11
- 239000011780 sodium chloride Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 9
- 239000002504 physiological saline solution Substances 0.000 claims description 6
- 230000001954 sterilising effect Effects 0.000 claims description 6
- 238000002504 lithotomy Methods 0.000 claims description 5
- 210000000664 rectum Anatomy 0.000 claims description 5
- 230000000717 retained effect Effects 0.000 claims description 5
- 210000003708 urethra Anatomy 0.000 claims description 5
- 210000003815 abdominal wall Anatomy 0.000 claims description 4
- 210000004712 air sac Anatomy 0.000 claims description 3
- 210000001217 buttock Anatomy 0.000 claims description 3
- 230000000249 desinfective effect Effects 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 210000002414 leg Anatomy 0.000 claims description 3
- 210000004877 mucosa Anatomy 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 210000002307 prostate Anatomy 0.000 claims description 3
- 210000005077 saccule Anatomy 0.000 claims description 3
- 210000004706 scrotum Anatomy 0.000 claims description 3
- 210000003905 vulva Anatomy 0.000 claims description 3
- 210000001015 abdomen Anatomy 0.000 claims description 2
- 208000015181 infectious disease Diseases 0.000 abstract description 7
- 208000002193 Pain Diseases 0.000 abstract description 5
- 208000032843 Hemorrhage Diseases 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000000916 dilatatory effect Effects 0.000 description 3
- 230000027939 micturition Effects 0.000 description 3
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- 208000034158 bleeding Diseases 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 230000002008 hemorrhagic effect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 208000024891 symptom Diseases 0.000 description 2
- 230000002485 urinary effect Effects 0.000 description 2
- 208000032544 Cicatrix Diseases 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 208000012931 Urologic disease Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 206010013990 dysuria Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 230000037387 scars Effects 0.000 description 1
- 230000002966 stenotic effect Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 208000014001 urinary system disease Diseases 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1011—Multiple balloon catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1018—Balloon inflating or inflation-control devices
- A61M25/10181—Means for forcing inflation fluid into the balloon
- A61M25/10182—Injector syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M29/00—Dilators with or without means for introducing media, e.g. remedies
- A61M29/02—Dilators made of swellable material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1011—Multiple balloon catheters
- A61M2025/1013—Multiple balloon catheters with concentrically mounted balloons, e.g. being independently inflatable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/10—Trunk
- A61M2210/1078—Urinary tract
- A61M2210/1089—Urethra
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Pulmonology (AREA)
- Child & Adolescent Psychology (AREA)
- Vascular Medicine (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a urethral dilatation catheter for urethral stricture and a using method thereof, belonging to the technical field of medical instruments. A urethral dilatation catheter aiming at urethral stricture comprises a catheter, wherein a conical block is connected onto the catheter, a drainage tube, a first water injection tube, a second water injection tube, a third water injection tube, a fourth water injection tube and a fifth water injection tube are connected onto the catheter, a valve is connected onto the fifth water injection tube, a balloon, a first balloon, a second balloon, a third balloon and a fourth balloon are sequentially connected onto the outer wall of the catheter, the first water injection tube is connected with the first balloon, the second water injection tube is connected with the second balloon, the third water injection tube is connected with the third balloon, the fourth water injection tube is connected with the fourth balloon, the fifth water injection tube is connected with the balloon, and a sixth through hole is formed in the drainage tube through the outer wall of the catheter; the invention uses split type transverse expansion to relieve the pain of the patient, prevents infection, hemorrhage and false tract, utilizes the independently controlled air bag to perform targeted expansion, relieves the pain of the patient and improves the medical compliance of the patient.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a urethral dilatation catheter aiming at urethral stricture and a using method thereof.
Background
Urethral stricture is a common urological disease in clinic, and is more common in male patients; in recent years, the incidence of urethral stricture caused by traffic accidents, intracavity surgery, urinary system infection and the like is increasing, and the normal life of patients is seriously influenced; the urethral stricture is mainly manifested by unsmooth urination, difficult urination, thin urine flow and the like, and with the progress of medical science, a plurality of new methods for treating the urethral stricture emerge, with the development and maturity of medical technology, the trauma to a patient in the intracavity surgical treatment process is small, the complication occurrence rate is lower, the urethral stricture has great advantages in clinical treatment, and the application range is gradually expanded.
The method is widely applied to intracavitary urethral stricture internal incision operation at present, urethral dilatation is performed regularly after operation, the urethral dilatation is clinically used for a metal dilator at present, potential safety hazards exist on sensitive parts of patients, and complications such as bleeding, pain, infection, false tract formation and the like during operation, on one hand, once bleeding and infection happen, new scars can be formed by urine stimulation wound surfaces, the curative effect of urethral stricture can be influenced, on the other hand, due to the fact that most patients with pain have poor medical acceptance, urination difficulty can be better tolerated and the urethral dilatation is unwilling, the recurrence rate of urethral stricture is high, the cure rate is poor, and most patients finally have to accept the reality of urinary flow diversion; there is therefore a need for a urethral dilation catheter that avoids infection and helps to relieve pain for the patient.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a urethral dilating catheter aiming at urethral stricture and a using method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a urethral dilatation catheter aiming at urethral stricture comprises a catheter, wherein a positioning block is connected to the catheter, a conical block is connected to the catheter, a column groove is formed in the conical block, the catheter is connected with a drainage tube, a first water injection tube, a second water injection tube, a third water injection tube, a fourth water injection tube and a fifth water injection tube, a valve is connected to the fifth water injection tube, a balloon, a first balloon, a second balloon, a third balloon and a fourth balloon are sequentially connected to the outer wall of the catheter, the first water injection tube is connected with the first balloon through a first through hole, the second water injection tube is connected with the second balloon through a second through hole, the third water injection tube is connected with the third balloon through a third through hole, the fourth water injection tube is connected with the fourth balloon through a fourth through hole, a fifth water injection tube penetrates through the outer wall of the catheter and is provided with a fifth through hole, and the fifth water injection tube is connected with the balloon through the fifth through hole, the drainage tube penetrates through the outer wall of the guide tube and is provided with a sixth through hole.
Preferably, the length of the first balloon is 3mm or less.
Preferably, the lengths of the second balloon, the third balloon and the fourth balloon are 5mm or less.
Preferably, the distance between the balloon and the first balloon is 20 mm.
Preferably, the diameter of the conduit is less than 5 mm.
Preferably, the valve comprises a valve body, a valve core, a spring and a sealing ring, the valve core is connected with a stop block and integrally formed with the valve core, the valve core is slidably connected in the valve body, two ends of the spring respectively abut against the valve body and the stop block, and two side faces of the sealing ring respectively abut against the valve body and the stop block.
A method of using a urethral dilation catheter for urethral strictures, comprising the steps of:
s1: the patient lies on the medical bed, the body is in the lithotomy position, the opposite trouser legs are taken off, and the perineum is exposed;
s2: the doctor wears the sterile gloves and lays a hole towel;
s3: a rubber sheet or a treatment towel is padded under the buttocks of the patient;
s3: sterilizing vulva by lifting penis and scrotum, exposing coronary sulcus, and sequentially sterilizing from urethral orifice, glans penis and coronary sulcus;
s4: checking whether the catheter is smooth, and checking the air bag to ensure no air leakage for the catheter needing to be indwelling;
s5: disinfecting the urethral orifice, the glans penis and the coronary sulcus again;
s7: a medical metal wire is used for penetrating into the drainage tube until the medical metal wire is propped against the bottom of the column groove in the conical block;
s6: lifting the penis to form an angle of 60 degrees with the abdominal wall, inserting the catheter into the abdomen for 160-220 mm, inserting the index finger of the right hand into the rectum for performing finger examination, touching the positioning block at the tip of the prostate, inserting the catheter for 10-20 mm after urine appears, and keeping the catheter fixed;
s7: injecting 15ml of normal saline from the inlet of the valve body by using an injector, so that the balloon is expanded to fix the catheter and is left in the bladder, the catheter is not easy to fall off, and the drainage tube is connected with a urine bag to collect urine;
s8: tensioning the catheter, and respectively injecting a corresponding amount of physiological saline into the air bags corresponding to the stenotic urethra to be dilated;
s9: the normal saline of the expansion air sac is pumped out after the expansion is carried out for 15 to 30 minutes,
s10: pushing the pudendum back by about 10mm, tightly binding the catheter by using gauze strips, and pulling out the medical metal wire;
s10: after the expansion is finished, the catheter is retained, the expansion is carried out again after 3 to 7 days, and the urethral mucosa is kept for 3 to 4 weeks until the narrow wound surface is fully repaired;
s11: the injector is used for pressing the valve core inwards to discharge the normal saline in the saccule and take out the catheter.
Preferably, the amount of saline injected into the first balloon in S8 is 2.7 ml.
Preferably, the amount of saline injected into the second balloon, the third balloon and the fourth balloon in S8 is 4.5 ml.
Preferably, the insertion amount of the catheter in S6 is 200-220 mm.
Compared with the prior art, the invention provides a urethral dilatation catheter aiming at urethral stricture and a using method thereof, and the urethral dilatation catheter has the following beneficial effects:
1. the urethral dilation catheter aiming at urethral stricture and the using method thereof, a patient lies on a medical bed, the body is in a lithotomy position, after a doctor sterilizes the perineum of the patient, a medical metal wire penetrates into the drainage tube, as the drainage tube penetrates through the inside of the catheter and extends to the conical block, and a sixth through hole is arranged on the outer wall of the through catheter at the position of the conical block, when the medical metal wire is continuously inserted until the medical metal wire is propped against a column groove, the doctor inserts the catheter by holding the perineum of the patient at 60 degrees by hands, and extends into the rectum of the patient with the other hand to touch a positioning block so as to determine the extending depth of a balloon, when the catheter is inserted into the bladder of the patient, the liquid in the bladder flows out of the body along the drainage tube through the sixth through hole, the doctor can conveniently confirm that the catheter is inserted in place, then fix the catheter, inject physiological saline from, when pressure is applied to the valve core, the valve core extrudes the spring inwards, the spring is contracted, the valve body is conducted, normal saline can be injected into the ball bag through the fifth through hole along the fifth water injection pipe, the ball bag is enabled to be protruded and fixed in the bladder of a patient, a catheter needs to be retained in the patient for subsequent fixing, urination of the patient is assisted, after water injection is finished, the spring rebounds the valve core, two sides of the sealing ring are abutted, the normal saline is prevented from flowing back, a doctor injects the normal saline into the corresponding water injection pipe according to the urethra part needing to be expanded of the patient for expansion, here, the first air bag, the second air bag, the third air bag and the fourth air bag respectively correspond to the parts from inside to outside of the perineum part of the patient, the normal saline is directly injected into the air bags for expansion, the transverse expansion and the traditional longitudinal expansion can effectively avoid secondary damage caused by false tracts, and in the, need the pressurize about 15 to 30 minutes, make the sufficient expansion of perineum, after the expansion is accomplished, use the gauze to tie up the pipe and take out medical wire, be detained the pipe in the patient is internal to in carrying out the later stage and continuing the treatment, the material of pipe all adopts non-metallic flexible material, for example: natural latex; prevent that the patient from appearing infection, hemorrhagic symptom, carry out the pertinence expansion to the required expansion position of patient through using the gasbag, avoid the patient to produce unnecessary misery, promote patient's doctor's nature of following, after 3 to 4 weeks's treatment, take out the pipe, specifically do, inwards press the case, make the valve body switch on, take out the normal saline in the sacculus, make the sacculus shrink, be convenient for take out the pipe.
Drawings
Fig. 1 is a first schematic structural view of a urethral dilating catheter for urethral stricture according to the present invention;
fig. 2 is a schematic structural view of a urethral dilation catheter for urethral stricture according to the present invention;
fig. 3 is a schematic structural view three of a urethral dilation catheter for urethral stricture according to the present invention;
fig. 4 is a schematic view of a portion a of fig. 1 of a urethral dilating catheter for urethral stricture according to the present invention;
FIG. 5 is a schematic view of a urethral dilation catheter of the type set forth in FIG. 3 for urethral stricture according to the present invention, section B of the catheter being shown;
fig. 6 is a fourth structural schematic view of a urethral dilation catheter for urethral stricture according to the present invention.
In the figure: 1. a conduit; 101. a drainage tube; 1011. a sixth through hole; 1021. a first water injection pipe; 1022. a second water injection pipe; 1023. a third water injection pipe; 1024. a fourth water injection pipe; 103. a fifth water injection pipe; 1031. a fifth through hole; 104. a valve body; 1041. a valve core; 1042. a spring; 1043. a stopper; 1044. a seal ring; 105. positioning blocks; 106. a conical block; 1061. a column groove; 2. a balloon; 201. a first air bag; 2011. a first through hole; 202. a second air bag; 2021. a second through hole; 203. a third air cell; 2031. a third through hole; 204. a fourth air bag; 2041. and a fourth via.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example (b):
referring to fig. 1-6, a urethral dilatation catheter for urethral stricture, comprising a catheter 1, a positioning block 105 connected to the catheter 1, a tapered block 106 connected to the catheter 1, a cylindrical groove 1061 formed in the tapered block 106, a drainage tube 101 connected to the catheter 1, a first water injection tube 1021, a second water injection tube 1022, a third water injection tube 1023, a fourth water injection tube 1024 and a fifth water injection tube 103 connected to the fifth water injection tube 103, a valve connected to the fifth water injection tube 103, a balloon 2, a first balloon 201, a second balloon 202, a third balloon 203 and a fourth balloon 204 sequentially connected to the outer wall of the catheter 1, the first water injection tube 1023 connected to the first balloon 201 through a first through hole 2011, the second water injection tube 1023 connected to the second balloon 202 through a second through hole 2021, the third water injection tube connected to the third balloon 203 through a third through hole 2031, the fourth water injection tube 1024 connected to the fourth balloon 204 through a fourth through hole 2041, and a fifth through hole 1031 formed in the outer wall of the fifth water injection tube 103, the fifth water injection tube 103 is connected with the balloon 2 through a fifth through hole 1031, and the drainage tube 101 penetrates through the outer wall of the catheter 1 to be provided with a sixth through hole 1011.
The length of the first balloon 201 is 3mm or less.
The lengths of the second balloon 202, the third balloon 203 and the fourth balloon 204 are 5mm or less.
The distance between the balloon 2 and the first balloon 201 is 20 mm.
The diameter of the catheter 1 is 5mm or less.
The valve comprises a valve body 104, a valve core 1041, a spring 1042 and a sealing ring 1044, wherein the valve core 1041 is connected with a stop block 1043 and is integrally formed with the valve core 1041, the valve core 1041 is slidably connected in the valve body 104, two ends of the spring 1042 respectively abut against the valve body 104 and the stop block 1043, and two side faces of the sealing ring 1044 respectively abut against the valve body 104 and the stop block 1043.
A method of using a urethral dilation catheter for urethral strictures, comprising the steps of:
s1: the patient lies on the medical bed, the body is in the lithotomy position, the opposite trouser legs are taken off, and the perineum is exposed;
s2: the doctor wears the sterile gloves and lays a hole towel;
s3: a rubber sheet or a treatment towel is padded under the buttocks of the patient;
s3: sterilizing vulva by lifting penis and scrotum, exposing coronary sulcus, and sequentially sterilizing from urethral orifice, glans penis and coronary sulcus;
s4: checking whether the catheter 1 is smooth, and checking the air bag to ensure no air leakage for the catheter 1 to be indwelling;
s5: disinfecting the urethral orifice, the glans penis and the coronary sulcus again;
s7: a medical wire is used to penetrate into the drainage tube 101 until the medical wire is pressed against the bottom of the column groove 1061 in the conical block 106;
s6: lifting the penis to form an angle of 60 degrees with the abdominal wall, inserting the catheter 1 into the abdominal wall for 160-220 mm, inserting the index finger of the right hand into the rectum for performing finger examination, touching the positioning block 105 at the tip of the prostate, inserting the catheter 10-20 mm after urine appears, and keeping the catheter fixed;
s7: 15ml of normal saline is injected from the inlet of the valve body 104 by using an injector, so that the balloon 2 is expanded to fix the catheter 1 and is left in the bladder, the catheter is not easy to fall off, and the drainage tube 101 is connected with a urine bag to collect urine;
s8: tensioning the catheter 1, and respectively injecting a corresponding amount of physiological saline into the air bags corresponding to the narrow urethra to be expanded;
s9: the normal saline of the expansion air sac is pumped out after the expansion is carried out for 15 to 30 minutes,
s10: pushing the pudendum back by about 10mm, tightly binding the catheter 1 by using gauze strips, and pulling out the medical metal wire;
s10: after the expansion is finished, the catheter 1 is retained, the expansion is carried out again after 3 to 7 days, and the urethral mucosa is kept for 3 to 4 weeks until the narrow wound surface is fully repaired;
s11: the syringe is used to press the valve core 1041 inwards to discharge the physiological saline in the balloon 2, and the catheter 1 is taken out.
The amount of saline injected into the first balloon 201 in S8 was 2.7 ml.
The amount of saline injected into the second balloon 202, the third balloon 203 and the fourth balloon 204 in S8 was 4.5 ml.
The insertion amount of the catheter 1 in S6 is artificially 200-220 mm.
The working principle is as follows: in the invention, a patient lies on a medical bed, the body of the patient is in a lithotomy position, after a doctor sterilizes the perineum of the patient, a medical metal wire is used for penetrating into the drainage tube 101, the drainage tube 101 penetrates through the inside of the catheter 1 and extends to the conical block 106, and a sixth through hole 1011 is formed in the position of the conical block 106 and penetrates through the outer wall of the catheter 1, when the medical metal wire is continuously inserted until the medical metal wire is propped against the column groove 1061, the doctor inserts the catheter 1 by holding the perineum of the patient at 60 degrees by hands, and extends into the rectum of the patient with the other hand to touch the positioning block 105 so as to determine the extending depth of the balloon 2, when the catheter 1 is inserted into the bladder of the patient, bladder liquid in the bladder flows out of the drainage tube 101 through the sixth through hole 1011, so that the doctor can confirm that the catheter 1 is inserted in place, then the catheter 1 is fixed, when pressure is applied to the valve core 1041, the valve core 1041 presses the spring 1042 inwards, so that the spring 1042 contracts, the valve body 104 is conducted, the saline can be injected into the balloon 2 through the fifth through hole 1031 along the fifth water injection pipe 103, the balloon 2 is enabled to be fixed in the bladder of the patient in a bulging mode, the catheter 1 needs to be retained in the body of the patient later to play a role in fixing, the patient urinates, after the water injection is finished, the spring 1042 rebounds the valve core 1041 to enable the two sides of the sealing ring 1044 to abut against the two sides of the sealing ring 1044, the saline is prevented from flowing back, a doctor injects the saline into the corresponding water injection pipe according to the urethra part of the patient to be dilated, here, the first air bag 201, the second air bag 202, the third air bag 203 and the fourth air bag 204 respectively correspond to the perineum part of the patient from inside to outside, the saline is directly injected into the air bags for dilation, the transverse dilation belongs to the traditional longitudinal dilation, in the expansion process, need the pressurize about 15 to 30 minutes, make the sufficient expansion of perineum, after the expansion is accomplished, use the gauze to tie up pipe 1 and take out medical wire, detain pipe 1 in the patient internally to in carrying out the later stage and continuing the treatment, pipe 1's material all adopts non-metallic flexible material, for example: natural latex; prevent that the patient from appearing infection, hemorrhagic symptom, carry out the pertinence expansion to the required expansion position of patient through using the gasbag, avoid the patient to produce unnecessary misery, promote patient's doctor's nature of following, after 3 to 4 weeks's treatment, take out pipe 1, specifically do, inwards press case 1041, make valve body 104 switch on, take out the normal saline in the sacculus 2, make sacculus 2 shrink, be convenient for take out pipe 1.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The urethral dilatation catheter for urethral stricture comprises a catheter (1) and is characterized in that a positioning block (105) is connected onto the catheter (1), a conical block (106) is connected onto the catheter (1), a column groove (1061) is formed in the conical block (106), a drainage tube (101), a first water injection tube (1021), a second water injection tube (1022), a third water injection tube (1023), a fourth water injection tube (1024) and a fifth water injection tube (103) are connected onto the catheter (1), a valve is connected onto the fifth water injection tube (103), a balloon (2), a first balloon (201), a second balloon (202), a third balloon (203) and a fourth balloon (204) are sequentially connected onto the outer wall of the catheter (1), the first water injection tube (1021) is connected with the first balloon (201) through a first through hole (2011), and the second water injection tube (1022) is connected with the second balloon (202) through a second through hole (2021), third water injection pipe (1023) link to each other with third gasbag (203) through third through-hole (2031), fourth water injection pipe (1024) link to each other with fourth gasbag (204) through fourth through-hole (2041), fifth water injection pipe (103) run through pipe (1) outer wall and seted up fifth through-hole (1031), fifth water injection pipe (103) link to each other with sacculus (2) through fifth through-hole (1031), drainage tube (101) run through pipe (1) outer wall and seted up sixth through-hole (1011).
2. A urethral dilatation catheter for urethral strictures according to claim 1 characterized in that the length of the first balloon (201) is below 3 mm.
3. A urethral dilatation catheter for urethral strictures according to claim 2 characterized in that the length of the second balloon (202), the third balloon (203) and the fourth balloon (204) is below 5 mm.
4. A urethral dilatation catheter for urethral strictures according to claim 3 characterized in that the distance between said balloon (2) and the first balloon (201) is 20 mm.
5. A urethral dilatation catheter for urethral strictures according to claim 4 characterized in that the diameter of the catheter (1) is below 5 mm.
6. The urethral dilation catheter for urethral stricture according to claim 1, wherein the valve comprises a valve body (104), a valve core (1041), a spring (1042) and a sealing ring (1044), the valve core (1041) is connected with a stopper (1043) and integrally formed with the valve core (1041), the valve core (1041) is slidably connected in the valve body (104), two ends of the spring (1042) respectively abut against the valve body (104) and the stopper (1043), and two side faces of the sealing ring (1044) respectively abut against the valve body (104) and the stopper (1043).
7. A method of using a urethral dilation catheter for urethral strictures, using the catheter of claim 1, comprising the steps of:
s1: the patient lies on the medical bed, the body is in the lithotomy position, the opposite trouser legs are taken off, and the perineum is exposed;
s2: the doctor wears the sterile gloves and lays a hole towel;
s3: a rubber sheet or a treatment towel is padded under the buttocks of the patient;
s3: sterilizing vulva by lifting penis and scrotum, exposing coronary sulcus, and sequentially sterilizing from urethral orifice, glans penis and coronary sulcus;
s4: checking whether the catheter (1) is smooth, and checking an air bag to ensure no air leakage for the catheter (1) to be indwelling;
s5: disinfecting the urethral orifice, the glans penis and the coronary sulcus again;
s7: a medical metal wire is used for penetrating into the drainage tube (101) until the medical metal wire is pressed against the bottom of the inner column groove (1061) of the conical block (106);
s6: lifting the penis to form an angle of 60 degrees with the abdominal wall, inserting the catheter (1) into the abdomen for 220mm, inserting the index finger of the right hand into the rectum for performing finger examination, touching the positioning block (105) at the tip of the prostate, inserting the catheter for 10-20 mm after urine appears, and keeping the catheter still;
s7: 15ml of normal saline is injected from the inlet of the valve body (104) by using an injector, so that the saccule (2) is expanded to fix the catheter (1) and is left in the bladder, the catheter is not easy to fall off, and the drainage tube (101) is connected with a urine bag to collect urine;
s8: tensioning catheters (1) for respectively injecting a corresponding amount of physiological saline into air bags corresponding to the narrow urethra to be dilated;
s9: the normal saline of the expansion air sac is pumped out after the expansion is carried out for 15 to 30 minutes,
s10: pushing the pudendum back by about 10mm, tightly binding the catheter (1) by using gauze strips, and pulling out the medical metal wire;
s10: after the expansion is finished, the catheter (1) is retained, the expansion is carried out again after 3 to 7 days, and the urethral mucosa is kept for 3 to 4 weeks until the narrow wound surface is fully repaired;
s11: the valve core (1041) is pressed inwards by using the injector, the physiological saline in the saccule (2) is discharged, and the catheter (1) is taken out.
8. The use of the urethral dilation catheter for urethral stricture according to claim 7, wherein the amount of the saline injected into the first balloon (201) in S8 is 2.7 ml.
9. The use of the urethral dilation catheter for urethral stricture according to claim 8, wherein the amount of the saline injected into the second balloon (202), the third balloon (203) and the fourth balloon (204) in S8 is 4.5 ml.
10. The use of the urethral dilation catheter for urethral stricture according to claim 7, wherein the amount of the catheter (1) inserted in the S6 is artificially 200 and 220 mm.
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| CN201911190743.9A CN110860025A (en) | 2019-11-28 | 2019-11-28 | Urethral dilatation catheter for urethral stricture and using method thereof |
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| CN113679930A (en) * | 2021-07-05 | 2021-11-23 | 高玉亮 | Dilating self-lubricating catheter |
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