CN114617682A

CN114617682A - Comfortable ureteral stent kit capable of being controlled to be taken out in operation-free mode

Info

Publication number: CN114617682A
Application number: CN202011456495.0A
Authority: CN
Inventors: 金卫; 秦晓鹏; 魏先锋
Original assignee: Jiangsu Yikai Medical Equipment Co ltd
Current assignee: Jiangsu Yikai Medical Equipment Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2022-06-14

Abstract

The invention discloses a comfortable ureteral stent suite capable of being controlled to be taken out without operation, which relates to the technical field of ureteral stents and comprises a stent body, wherein one end of the stent body is provided with a J-shaped tube, the other end of the stent body is connected with a silk thread, and the other end of the silk thread is connected with an exhaust body, and the comfortable ureteral stent suite is characterized in that: the drainage body is a magnetic ball, the ureteral stent kit further comprises a magnetic attraction piece, and the magnetic attraction piece and the magnetic ball can attract each other across human tissues. When a patient urinates, the magnetic sucking piece sucks the magnetic small ball with the hole in the bladder to prevent the small ball from being discharged along with urine; after urination, the magnetic attraction piece is removed or the magnetic field of the magnetic attraction piece disappears, so that the human body is prevented from being damaged by the strong magnetic field; if the magnetic small ball reaches the preset time for placing, the magnetic small ball in the bladder is released out of the body under the influence of gravity and the impact force of urine, and a patient pulls the silk thread connected with the magnetic small ball with the hole to pull the J-shaped pipe out of the body, so that the secondary cystoscopy operation is avoided, the pain of the patient is relieved, and the use comfort is improved.

Description

Comfortable ureteral stent kit capable of being controlled to be taken out in operation-free mode

Technical Field

The invention relates to the technical field of ureteral stents, in particular to a comfortable ureteral stent suite capable of being controlled to be taken out in a surgery-free mode.

Background

The ureteral stent is commonly used for placing a ureter in urinary surgery, one end of the ureteral stent is placed into a renal pelvis, and the other end of the ureteral stent is placed into a bladder, so that the ureteral stent has the advantages of relieving ureteral obstruction, expanding the ureter, preventing ureteral stenosis, facilitating stone discharge, promoting postoperative recovery of the ureter and the like, and is clinically used; 1. obstruction of the ureter; 2. ureteral stenosis; 3. after calculus lithotripsy; 4. ureteral trauma; 5. after ureteral surgery and after adjacent tissue surgery; 6. preparing to pre-arrange a stent tube before a ureteral endoscope operation; 7. hydronephrosis and renal dysfunction of patients with retroperitoneal fibrosis; 8. malignant tumor compresses ureter. The ureter is connected with the renal pelvis and the bladder at the lower part, is a pair of slender pipelines, is in an oblate column shape, has the average pipe diameter of 0.5-0.7 cm, has the overall length of 25-35 cm of the adult ureter, is positioned behind the peritoneum, and vertically descends along the front part of the inner side of the psoas major to enter the pelvis. Generally, for many urological surgeries, ureteral stents are used, which have the advantages of relieving ureteral obstruction, dilating ureters, preventing ureteral stenosis, facilitating stone discharge, promoting ureteral postoperative recovery, and the like, and are widely used in hospitals.

The utility model discloses a be improved on the basis of the utility model patent of patent number ZL201921377413.6, the patent name "a novel ureter support of being convenient for take out exempt from the operation", the last generation patent technology has solved among the prior art ureter support and has had to take out through the cystoscope operation through the mode that the line ball combines, can not discharge by oneself and bring very big painful technical problem for patient, nevertheless because the time that the bobble was discharged is uncontrollable during micturition, the event discharge time brings the uncertainty. If the small ball is discharged too early, the small ball can be fixed outside the body through the adhesive plaster, but the small ball brings discomfort to a patient, even the ureteral stent is pulled to be displaced, so that the ureteral stent has to be pulled out too early, and therefore, if the discharging time of the small ball cannot be controlled artificially, certain hidden trouble exists.

However, with the wide development of minimally invasive operations such as ureter softening, hard mirror, percutaneous nephroscope, laparoscope, robot laparoscope and the like in urinary surgery, the postoperative recovery of patients is faster and faster, so that the requirements of patients are higher and higher, and after the double J-tube is placed, hematuria, abdominal discomfort, frequent micturition, urgent micturition, urodynia and urinary tract irritation can occur, the placing time is too long, and calculus is formed on the tube wall. Although the temperature-controlled stent, the Fishtail ureteral stent, the hydrophilic coating enhance histocompatibility and the like, patients still have certain discomfort after the ureteral stent is placed.

Disclosure of Invention

The invention aims to provide a novel comfortable ureteral stent which is free of operation, controllable and convenient to take out, on the basis of ensuring that a doctor can conveniently place the ureteral stent in an operation mode, a J-shaped end in a renal pelvis is hard, can easily pass through an opening of the ureteral, is not easy to deform, guarantees the fixing effect in the renal pelvis, and guarantees the maximum comfort level of a patient after placement, the ureteral stent is sequentially softened from top to bottom, even the bladder end of the J-shaped tube is designed into a horn mouth, the horn mouth at the tail end is most flexible, the comfort of the horn mouth in the bladder is improved, the horn mouth is not easy to shrink and shift upwards, the discomfort of the ureteral stent after placement can be obviously relieved, and meanwhile, magnetic small balls in the bladder can be sucked by a magnetic suction piece outside the body of the patient, and can be prevented from being discharged along with urine. After urination, the magnetic attraction piece is removed or the magnetic field of the magnetic attraction piece disappears, so that the human body is prevented from being damaged by the strong magnetic field; if the magnetic small ball reaches the preset time for placing, the magnetic suction piece is not needed, so that the magnetic small ball in the bladder is released out of the body under the influence of gravity and the impact force of urine, and a patient pulls the silk thread connected with the magnetic small ball with the hole to pull the J-shaped pipe out of the body, thereby avoiding secondary cystoscopy operation, relieving the pain of the patient, improving the comfort of placing the ureteral stent into the body and solving the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a comfortable type ureteral stent external member of steerable taking out of operation of exempting from, includes the support body, the one end of support body is provided with J type pipe, and the other end of support body is connected with the silk thread, the silk thread other end is connected with eduction body, its characterized in that: the discharging body is a magnetic ball, the ureteral stent external member further comprises a magnetic sucking piece, and the magnetic sucking piece and the magnetic ball can attract each other across human tissues.

As a further scheme of the invention: the other end of the bracket body (corresponding to the bladder end) is provided with a reverse J-shaped pipe or a bell mouth, and the silk thread is fixed on the reverse J-shaped pipe or the bell mouth at the other end of the bracket body, or the silk thread is fixed at the joint of the reverse J-shaped pipe or the bell mouth at the other end of the bracket body and the bracket body.

As a further scheme of the invention: the hardness of the J-shaped pipe at one end of the support body to the support body and then to the reverse J-shaped pipe or the bell mouth at the other end of the support body gradually becomes soft.

As a still further scheme of the invention: the discharging body is a magnetic ball provided with a through hole, and the silk thread penetrates through the through hole to fix the magnetic ball.

As a still further scheme of the invention: the magnetic attraction piece is a permanent magnet or an electromagnet, and a power supply and a switch are connected to the electromagnet.

As a further scheme of the invention: and an indication mark is arranged at the joint of the bracket body and the reverse J-shaped pipe or the bell mouth at the other end of the bracket body.

As a still further scheme of the invention: and hydrophilic layers are coated on the outer surfaces of the bracket body, the J-shaped pipe and the reverse J-shaped pipe or the bell mouth.

Compared with the prior art, the invention has the beneficial effects that:

1. the magnetic small balls and the silk threads are matched for use, so that the whole ureteral stent can be conveniently taken out of the body of a patient, secondary bladder operation is avoided, and the pain of the patient is relieved;

2. according to the invention, the magnetic attraction piece is placed on the skin of the pubis, so that when a patient urinates, the magnetic attraction piece attracts the magnetic small ball with the hole in the bladder to prevent the magnetic small ball from being discharged along with the urine. After urination, the magnetic attraction piece is removed or the magnetic field of the magnetic attraction piece disappears, so that the human body is prevented from being damaged by the strong magnetic field. If the magnetic small ball reaches the preset time for placing, the magnetic suction piece is not needed, so that the magnetic small ball in the bladder is released out of the body under the influence of gravity and the impact force of urine, and a patient pulls the silk thread connected with the magnetic small ball with the hole to pull the J-shaped pipe out of the body, thereby avoiding secondary cystoscopy operation. Meanwhile, the ureteral stent can be taken out according to the time preset by a doctor, so that the controllability of the extraction time of the ureteral stent is achieved.

3. According to the invention, the ureteral stent is prevented from moving upwards into a ureter in a patient body to cause a drainage effect, the firmness of the ureteral stent is increased, and meanwhile, by adopting the design of the gradually decreased hardness, the hardness of the ureteral stent gradually becomes soft in sequence, and the J-shaped tube at the horn mouth or the bladder end placed in the bladder is the most soft. The uncomfortable feelings of frequent urination, urgent urination, waist discomfort and the like after the ureteral stent is placed are reduced as much as possible.

4. According to the invention, the indication mark is arranged at the joint of the bracket body and the reverse J-shaped pipe or the bell mouth at the other end of the bracket body, so that a ureteral bracket is conveniently placed at a preset ideal position during operation of a doctor, and the operation is convenient.

Drawings

Fig. 1 is a schematic structural diagram of a comfortable ureteral stent set with controllable removal without surgery.

Fig. 2 is a schematic structural view of another embodiment of a comfortable ureteral stent set with controlled removal without surgery.

The labels in the figure are: 1. a stent body; 2. a J-shaped pipe; 3. a bell mouth; 4. a circular hole; 5. a reverse J-shaped tube; 6. an indication mark; 8. a silk thread; 9. an exhaust body; 10. magnetic attraction pieces.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, in an embodiment of the present invention, a comfortable ureteral stent set capable of being controlled and taken out without operation includes a stent body 1, one end of the stent body 1 is provided with a J-shaped tube 2, the other end of the stent body 1 is connected with a silk thread 8, the other end of the silk thread 8 is connected with an ejector 9, and the comfortable ureteral stent set is characterized in that: the discharging body 9 is a magnetic ball, the ureteral stent kit further comprises a magnetic attraction piece 10, and the magnetic attraction piece 10 and the magnetic ball can attract each other across human tissues.

In some embodiments of the present invention, an inverted J-shaped tube 5 or a bell 3 is also disposed at the other end of the stent body 1, and the silk thread 8 is fixed on the inverted J-shaped tube 5 or the bell 3 at the other end of the stent body 1, or the silk thread 8 is fixed at a connection position of the inverted J-shaped tube 5 or the bell 3 at the other end of the stent body 1 and the stent body 1.

In this embodiment, the ureteral stent body 1 is made of relatively soft polyurethane or silica gel, so that the double J-shaped tube is not wrinkled when placed through the guide wire, and the placement is difficult. Meanwhile, the tube body of the bracket body 1 is soft, the tissue compatibility is good, the discomfort such as lumbago and waist distending pain of a patient after the ureteral bracket is placed can be obviously relieved, in addition, round holes 4 are uniformly formed in the outer surfaces of the bracket body 1, the J-shaped tube 2 and the reverse J-shaped tube 5, and the drainage dredging effect is improved.

In this embodiment, the J-shaped tube 2 is made of polyurethane with hardness of 95, the hardness of the J-shaped tube 2 at the starting end is sequentially greater than the hardness of the stent body 1 and the reverse J-shaped tube 5 or the bell mouth 3 at the tail end (i.e., placed at the bladder), the J-shaped tube 2 at the starting end is relatively hard to ensure that the ureteral stent can smoothly pass through the entrance of the ureteral bladder by being pushed by a guide wire, and after the push guide wire is withdrawn, the bending degree of the J-shaped tube 2 in the renal pelvis is ensured, so that the J-shaped tube can be finally clamped at the renal pelvis end, the stent body 1 is not easy to shift, and the upper end of the stent body 1 is prevented from moving downwards and falling into the bladder due to the activity of a patient and gravity factors.

The bracket body 1 has the functions of supporting and draining the ureter, so that one section of the bracket body must be placed in a renal pelvis to ensure that the bracket body does not shift and fall off, the other section of the bracket body must be placed in a bladder to ensure smooth drainage, the bracket body 1 is pushed by the harder end of the J-shaped pipe 2 at the starting end, when the bracket body is placed upwards from the bladder, the bracket body easily passes through the opening of the vesicoureteral canal, the reverse J-shaped pipe 5 or the bell mouth 3 at the tail end is clamped in the bladder to prevent the lower end of the bracket body 1 from retracting upwards and moving due to the reflux and peristalsis of the vesicoureteral canal or the contraction of the vesicoureteral so that the bracket body is not easy to move upwards into the ureter, and the reverse J-shaped pipe 5 or the bell mouth 3 placed in the bladder is made of extremely soft material, such as silica gel or latex, so that the contact comfort of the bracket body is further improved when the existing J-shaped or bell mouth-shaped position is limited; meanwhile, the hydrophilic coating is arranged on the whole outer surface of the ureteral stent, and even if the reverse J-shaped tube 5 or the bell mouth 3 contacts the bladder wall, obvious phenomena of frequent micturition, urgent micturition, pain in micturition and hematurition can not be generated.

In this embodiment, the magnetic attraction member 10 is a permanent magnet or an electromagnet, and the electromagnet is connected with a power supply and a switch. When a permanent magnet, such as a neodymium magnet is used, which is small and convenient to carry, is used, when a patient urinates, the permanent magnet is attached to the skin outside the pubic bone, and the magnetic globule with holes in the bladder is attracted to prevent the magnetic globule from being discharged along with the urine. After urination, the permanent magnet is removed to prevent the strong magnetic field from damaging the human body. If the magnetic small ball reaches the preset time for placing, the magnetic small ball in the bladder without the permanent magnet can be released out of the body by the gravity and the impact force of urine, in addition, the patient can also use the permanent magnet to place in the perineum (the back side of the bulbourethral urethra) to accelerate and attract the magnetic small ball to discharge, and the silk thread connected with the magnetic small ball with holes is pulled out of the J-shaped pipe by the patient, so that the secondary cystoscope operation is avoided.

When the electromagnet is used, the electromagnet is electrically connected with the power supply and the switch, when a patient urinates, the electromagnet is fixed on the pubis by hand, the electromagnet is electrified to generate a magnetic field through controlling the switch, and the magnetic small ball with the hole in the bladder is sucked to prevent the urine from being discharged along with the urine. After urination is finished, the switch is controlled to cut off the power of the electromagnet to enable the magnetic field of the magnetic attraction piece to disappear, the human body is prevented from being damaged by the strong magnetic field, and meanwhile, the electromagnet is removed. If the magnetic small ball reaches the preset time for placing, the magnetic small ball in the bladder can be released out of the body under the impact force of gravity and urine without using an electromagnet, and a patient pulls the silk thread connected with the magnetic small ball with the hole to pull the J-shaped pipe out of the body, so that the secondary cystoscope operation is avoided.

In this embodiment, the J-shaped tube 2, the stent body 1, and the reversed J-shaped tube 5 or the flare 3 may be welded or integrally formed. The discharging body 9 is a magnetic ball with holes, the whole body is smooth and easy to discharge out of the body, and no obvious foreign body sensation exists in the body.

The magnetic small ball with the hole and the silk thread 8 are used for being placed into the bladder, the magnetic small ball with the hole can pass through an 038/150 loach guide wire, the length of the silk thread 8 exceeds the length of a male urethra, if the discharger 9 and the silk thread 8 are discharged out of the body too early, the silk thread 8 is fixed out of the body by using an adhesive tape, and the ureter stent tube in the body is pulled out automatically at a proper time; and the discharging body 9 is discharged through the urine of the patient, and the whole ureteral stent can be taken out from the body of the patient through the silk thread 8, so that the secondary bladder operation is avoided, and the pain of the patient is relieved.

In this embodiment, the discharger 9 is a magnetic pellet provided with a through hole for passing through a loach or zebra guide wire, and the silk thread 8 passes through the through hole to fix the magnetic pellet; the through holes are arranged for facilitating the thread 8 to pass through and bind the magnetic small balls, and for enabling the discharger 9 to pass through the guide wire along with the ureteral stent to be pushed in during the operation process, and the ureteral stent and the magnetic small balls with holes are placed in the ureter and the bladder at the same time, so that the operation placement is extremely simple and convenient.

In this embodiment, the magnetic pellet is used for facilitating the doctor to put the magnetic pellet and the silk thread into the bladder through the guide wire, and the magnetic pellet can be discharged out of the body along with urine due to the gravity relationship. The patient can pull out the ureteral stent out of the body through the magnetic small balls and the silk threads discharged out of the body, so that the pain of taking out the double J-shaped tube in a secondary cystoscope operation is avoided, and the economic burden of the patient is relieved.

In some embodiments of the invention, the junction of the stent body 1 and the inverted J-tube 5 or the flare 3 is provided with an indicator 6 to facilitate positioning and placement of the ureteral stent at the ureteral bladder opening.

The indication mark 6 can distinguish the renal pelvis and the bladder corresponding to the J-shaped tube 2 at the starting end and the reverse J-shaped tube 5 or the bell mouth 3 at the tail end respectively, so that the use is prevented from being reversed, the use convenience is improved, and the doctor operation is facilitated.

The working principle of the invention is as follows:

in the installation process, the J-shaped pipe 2 at the starting end is placed at the renal pelvis of a patient, and then the reverse J-shaped pipe 5 or the bell mouth 3 at the tail end is placed at the bladder of the patient and clamped on the bladder;

in the using process, when a patient urinates, the magnetic suction piece 10 sucks the magnetic small balls with holes in the bladder to prevent the small balls from being discharged along with urine, and the magnetic suction piece 10 is removed or the magnetic field of the magnetic suction piece 10 disappears after the urination is finished, so that the human body is prevented from being damaged by the strong magnetic field; if the magnetic small balls reach the preset time for placing, the magnetic small balls in the bladder can be released out of the body under the impact force of gravity and urine without using the magnetic attraction piece 10, and the patient pulls the silk thread 8 connected with the magnetic small balls with holes to pull the J-shaped pipe 2 out of the body, so that the secondary cystoscopy operation is avoided, and the pain of the patient is relieved;

in the protective measure, through adopting this degressive hardness design and soft and hard section combination in proper order, the harder assurance J type head shape of renal pelvis end is difficult for droing, the ureter support body is softer, adopt this degressive hardness design in proper order, the terminal softer material of ureter body links to each other with the extremely soft horn type silica gel material of putting into the bladder, the material welding and the fixed approach of two kinds of different hardnesses, can guarantee to avoid the operation steerable novel ureter support of taking out and place smoothly through the seal wire and can not corrugate the condition under, guarantee the compliance in ureter support implantation body, hydrophilic coating guarantees the compatibility of tissue simultaneously, can alleviate the uncomfortable sense after patient ureter support implantation to a certain extent.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a comfortable type ureteral stent external member of steerable removal of exempting from operation, includes support body (1), the one end of support body (1) is provided with J type pipe (2), and the other end of support body (1) is connected with silk thread (8), silk thread (8) other end is connected with eduction body (9), its characterized in that: the discharging body (9) is a magnetic small ball, the ureteral stent kit further comprises a magnetic sucking piece (10), and the magnetic sucking piece (10) and the magnetic small ball can attract each other across human tissues.

2. A surgically-free, controllably removable, conformable ureteral stent kit, according to claim 1, wherein: the other end of the support body (1) is provided with a reverse J-shaped pipe (5) or a bell mouth (3), the silk thread (8) is fixed on the reverse J-shaped pipe (5) or the bell mouth (3) at the other end of the support body (1), or the silk thread (8) is fixed at the joint of the reverse J-shaped pipe (5) or the bell mouth (3) at the other end of the support body (1) and the support body (1).

3. A surgically-free, controllably removable, conformable ureteral stent kit, according to claim 1, wherein: the hardness of the J-shaped pipe (2) at one end of the support body (1) to the support body (1) and then to the reverse J-shaped pipe (5) or the bell mouth (3) at the other end of the support body (1) is gradually softened.

4. A surgically-free, controllably removable, conformable ureteral stent kit, according to claim 1, wherein: the discharging body (9) is a magnetic ball provided with a through hole, and the silk thread (8) penetrates through the through hole to fix the magnetic ball.

5. A surgically-free, controllably removable, conformable ureteral stent kit, according to claim 1, wherein: the magnetic attraction piece (10) is a permanent magnet or an electromagnet, and a power supply and a switch are connected to the electromagnet.

6. Comfortable ureteral stent kit for hands-free controlled removal a comfortable ureteral stent kit for hands-free controlled removal according to claim 1, wherein: and an indication mark (6) is arranged at the joint of the bracket body (1) and the reverse J-shaped pipe (5) or the bell mouth (3) at the other end of the bracket body.

7. A surgically-free, controllably-removable, conformable ureteral stent kit, according to claim 1, wherein: the outer surfaces of the support body (1), the J-shaped pipe (2) and the reverse J-shaped pipe (5) or the bell mouth (3) are coated with hydrophilic layers.