CN210582766U

CN210582766U - Anti-slip prostate stent

Info

Publication number: CN210582766U
Application number: CN201921067627.3U
Authority: CN
Inventors: 李昭辉
Original assignee: First Peoples Hospital of Yibin
Current assignee: First Peoples Hospital of Yibin
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-05-22
Anticipated expiration: 2029-07-09

Abstract

The anti-slip prostate stent comprises a prostate stent body, a catheter, a clamping plate, a connecting rod and a first connecting rod, one end of the connecting rod is connected with the outer side wall of the clamping plate, the other end of the connecting rod is connected with a connecting column, the axis of the connecting column is parallel to the axis of the prostate support body, the end face of one end of the prostate support body is connected with a bearing block, the two ends of the first connecting rod are respectively connected with the bearing block and the connecting column, when in an initial state, the prostate stent body is sleeved on the catheter, the axis of the connecting column is parallel to the axis of the prostate stent body, when in use, the prostate stent body is released, the prostate stent body expands outwards along the axis of the catheter to drive the first connecting rod and the connecting column to move, the clamping plate is driven to move until the connecting column is coaxial with the prostate stent body, and the clamping plate is attached to the inner wall of the bladder at the moment; by using the device, the prostate stent can be fixed at the initial placement position, and the prostate stent is prevented from sliding off.

Description

Anti-slip prostate stent

Technical Field

The utility model relates to a prostate support technical field specifically is an antiskid prostate support that falls.

Background

The prostate stent is a metal device placed in the urethra of the prostate part, can relieve lower urinary tract symptoms caused by benign prostatic hyperplasia, is only suitable for high-risk patients who have repeated urine retention and cannot accept surgical operations, and is used as a substitute treatment method for urethral catheterization, the existing prostate stent adopts a net-shaped stent made of nickel-titanium alloy, the nickel-titanium memory alloy expanding prostate stent has excellent biocompatibility and corrosion resistance, has peculiar memory characteristics and superelasticity, is in a softened state under 0-10 ℃ (ice water), can change the shape within a certain range, is sent into a narrow area in a body through a catheter, can be immediately restored to the original shape under the body temperature, generates continuous radial expansion force, acts on the urethral wall, enables the narrow area to be restored to be unobstructed, is tightly attached to the inner wall of the urethra, enables mucous membranes to be embedded, and promotes epithelial cell coverage, can prevent generation of calculus.

In the prior art, a bracket is placed through a catheter, the catheter is firstly inserted into a prostate along a urethra when the bracket is placed, the position of prostatic hyperplasia is found through endoscopic radiography, then the bracket is released and taken out, and the catheter is taken out after the bracket is released. After the prostate stent is placed, the prostate stent is fixed by means of the pressure of the prostate at two ends, when a patient urinates, the impact of urine can cause the prostate stent to fall downwards and enter the urethra below, in addition, the prostate hyperplasia condition of the patient is gradually recovered in the treatment process, the pressure on the prostate stent is reduced, and the prostate stent can also fall.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that the prostate support can fall in the lower part of the urethra in the urination process after being placed into the patient in the prior art, and provides an anti-slip prostate support.

The utility model discloses a following technical scheme realizes:

the anti-slip prostate stent comprises a prostate stent body, wherein the prostate stent body is a reticular stent made of nickel-titanium memory alloy, the prostate stent body is sleeved on a catheter, the prostate stent further comprises a clamping plate, a connecting rod and a first connecting rod, the clamping plate is an arc-shaped plate, the inner side wall of the clamping plate is matched with the inner wall of a bladder of a human body, one end of the connecting rod is connected with the outer side wall of the clamping plate, the other end of the connecting rod is connected with the connecting column, the axis of the connecting column is parallel to the axis of the prostate stent body, a bearing block is connected onto the end face of one end of the prostate stent body, the two ends of the first connecting rod are respectively connected with the bearing block and the connecting column, the prostate stent body is sleeved on the catheter in an initial state, the axis of the connecting column is, the first connecting rod and the connecting column are driven to move, and then the clamping plate is driven to move until the connecting column is coaxial with the prostate stent body, and the clamping plate is attached to the inner wall of the bladder at the moment.

Prostate hyperplasia's patient, its prostate increase oppresses the urethra, makes the urethra block, forms urine and reserves, when the patient adopts to put into the prostate support and treats, after the prostate support puts into, relies on the pressure of urethra both ends prostate to fix, and when the patient urinated, the impulsive force of urine probably caused the prostate support to drop downwards, gets into the urethra of below. In response to this problem, the inventors conducted detailed studies and designed the present device. The prostate is located in the lower part of the bladder, at the bladder orifice, around the bladder neck and at the upper end of the prostate, with an internal sphincter that controls the discharge of urine. Patient has obtained the length of prostate hyperplasia position distance bladder mouth in clinical examination, according to this data, selects the prostate support that corresponds the size, the utility model discloses in establish prostate support body cover and set up the cardboard that fits the bladder inner wall on the prostate support body simultaneously on the pipe, because the cardboard needs advance to go into in the bladder then remove and just can laminate in bladder inner wall, the utility model discloses in be equipped with the carrier block on prostate support body one end terminal surface, be connected with the head rod on the carrier block, the head rod is connected with the spliced pole, the spliced pole axis is on a parallel with the prostate support body, still is connected with the connecting rod on the spliced pole, the connecting rod is connected with the cardboard lateral wall, cardboard inside wall and bladder inner wall match. When putting in, at the cystoscope, X line or the observation of person's B ultrasonic down, utilize the pipe to transport the prostate support body appointed position, at this moment, the cardboard passes through inside the entrance to the bladder, release prostate support body, drive head rod and spliced pole motion, and then drive the cardboard motion, it is coaxial with prostate support body until the spliced pole, the cardboard is laminated in bladder inner wall this moment, prostate support body is complete to be expanded, the spliced pole moves the urethra middle part, so realize putting into of prostate support and the laminating of cardboard, and simultaneously, the spliced pole is located the urethra middle part, do not influence opening and shutting of internal sphincter control entrance, the cardboard is laminated in bladder inner wall, prostate extrusion prostate support body, effectively prevent that prostate support body landing in the urethra lower part. The utility model discloses the lateral wall of well cardboard indent is the cardboard inside wall, the lateral wall of cardboard evagination is the lateral wall of cardboard, the prostate support body is along the outside expansion of axis at the release in-process, its length can not change, the cooperation of prostate support body and pipe and release are present more mature technique, do not do unnecessary repeated description here, when needing further to point out, the both ends of cardboard are the transition face of rounding off curved surface, do not have sharp-pointed part to prevent to get into in-process cardboard and cause the damage to human urethra.

Further, the connecting column is a cylinder. Human urethra is cylindrical, and after the release of prostate support body, opening and shutting of internal sphincter control bladder mouth, the spliced pole has the edges and corners, and when the internal sphincter was in nervous state messenger bladder mouth closed, the edges and corners caused the damage of patient's urethra mucous membrane easily, the utility model discloses well spliced pole is cylindrical, prevents that spliced pole and urethra contact from stabbing the urethra mucous membrane and causing the patient discomfort, the utility model discloses well spliced pole diameter is less, is less than the diameter of human urethra mouth.

Furthermore, the bearing block and the clamping plate are respectively arranged in two, the connecting rod and the first connecting rod are respectively arranged in two, the connecting column comprises two half-connecting columns, two ends of the first connecting rod are respectively connected with the bearing block and the half-connecting columns, two ends of the connecting rod are respectively connected with the clamping plate and the half-connecting columns, the bearing block, the first connecting rod, the half-connecting columns and the clamping plate form clamping units, the two clamping units are rotationally and symmetrically arranged along the axis of the prostate stent body, the connecting rod and the first connecting rod in any one clamping unit movably penetrate through the half-connecting column in the other clamping unit, when in use, the prostate stent body is released, the prostate stent body outwards expands along the axis of the catheter to drive the two clamping units to move in opposite directions until the two half-connecting columns are tightly attached to form a connecting column which is coaxially arranged with the, at the moment, the two clamping plates are attached to the inner wall of the bladder.

One clamping plate is fixedly unstable by being attached to the inner wall of the bladder, the connecting rod and the first connecting rod in the utility model are both arranged into two, the bearing block and the clamping plate are both arranged into two, the connecting rod comprises two half-connecting columns, the bearing block is fixed on the end surface of one end of the prostate stent body, the two ends of the first connecting rod are respectively connected with the bearing block and the half-connecting columns, the two ends of the connecting rod are respectively connected with the clamping plate and the half-connecting columns, the bearing block, the first connecting rod, the half-connecting columns and the clamping plate form clamping units, the connecting rod and the first connecting rod in any one clamping unit movably penetrate through the half-connecting column in the other clamping unit, when in use, the prostate stent body is released, the prostate stent body outwards expands along the axis of the catheter, the two clamping units are driven to move in opposite, two cardboard all laminate in bladder inner wall this moment, and the cardboard of relative setting laminates in bladder inner wall and the cooperation of prostate support body in two directions, further strengthens the fixed stability of prostate support.

Furthermore, the two semi-connecting columns are semi-cylinders, and the connecting columns formed after the semi-connecting columns are attached together are cylinders. Human urethra is cylindrical, and after the release of prostate support body, opening and shutting of internal sphincter control bladder mouth, the spliced pole has the edges and corners, and when the internal sphincter was in nervous state messenger bladder mouth closed, the edges and corners caused the damage of patient's urethra mucous membrane easily, the utility model discloses well two the spliced pole be the semicolumn, form complete cylinder after the laminating together, prevent that spliced pole and urethra contact from stabbing the urethra mucous membrane and causing the patient discomfort, the utility model discloses well spliced pole is very thin.

Furthermore, the clamping plate, the connecting column, the connecting rod, the first connecting rod and the bearing block are made of corrosion-resistant metal materials. Because cardboard, spliced pole, connecting rod, head rod and carrier block all contact with the urine for a long time, corrosion-resistant material, it corrodes and causes the patient to be uncomfortable easily to contact the material for a long time. The utility model discloses in cardboard, spliced pole, connecting rod, head rod and carrier block all adopt anticorrosive metal material, cause the patient discomfort after preventing that each part from corroding.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

1. the utility model discloses in be equipped with the carrier block on prostate support body one end terminal surface, be connected with the head rod on the carrier block, the head rod is connected with the spliced pole, the spliced pole axis is on a parallel with the prostate support body, still be connected with the connecting rod on the spliced pole, the connecting rod is connected with the cardboard lateral wall, the cardboard inside wall matches with the bladder inner wall, in use, utilize the pipe to transport the assigned position with the prostate support body, inside the cardboard passes through the bladder mouth and gets into the bladder, release prostate support body, the expansion of prostate support body, drive head rod and spliced pole motion, and then drive the cardboard motion, make the cardboard laminate in bladder inner wall, prostate extrusion prostate support body, effectively prevent that the prostate support body from landing in the urethra lower part.

2. In the utility model, the connecting rod and the first connecting rod are both arranged into two, the bearing block and the clamping plate are both arranged into two, the connecting column comprises two half-connecting columns, the bearing block is fixed on one end face of the prostate stent body, the two ends of the first connecting rod are respectively connected with the bearing block and the half-connecting columns, the two ends of the connecting rod are respectively connected with the clamping plate and the half-connecting columns, the bearing block, the first connecting rod, the half-connecting columns and the clamping plate form a clamping unit, the connecting rod and the first connecting rod in any one clamping unit can movably penetrate through the half-connecting column in the other clamping unit, when in use, the prostate stent body is released, the prostate stent body expands outwards along the axis of the guide tube to drive the two clamping units to move in opposite directions until the two half-connecting columns are tightly jointed, the connecting column which, cardboard that sets up relatively laminates in bladder inner wall and the cooperation of prostate support body in two directions, further strengthens the fixed stability of prostate support.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the prostatic stent body of the present invention when not released;

fig. 2 is a schematic view of the overall structure of the prostate stent body according to the present invention when released;

FIG. 3 is a map of the location of the bladder, prostate and internal sphincter of a human.

Reference numbers and corresponding part names in the drawings:

1. the prostate stent comprises a prostate stent body, 2, a clamping plate, 3, connecting columns, 4, connecting rods, 5, first connecting rods, 6, a bearing block, 7, a catheter, 8, a bladder, 9, an internal sphincter, 10, a prostate, 31 and half connecting columns.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1

As shown in fig. 1 to 3, the prostate stent comprises a prostate stent body 1, the prostate stent body 1 is a mesh stent made of nickel-titanium memory alloy, the prostate stent body 1 is sleeved on a catheter 7, and the prostate stent is characterized by further comprising a clamping plate 2, a connecting rod 4 and a first connecting rod 5, the clamping plate 2 is an arc-shaped plate, the inner side wall of the clamping plate 2 is matched with the inner wall of a human bladder 8, one end of the connecting rod 4 is connected with the outer side wall of the clamping plate 2, the other end of the connecting rod 4 is connected with a connecting column 3, the axis of the connecting column 3 is parallel to the axis of the prostate stent body 1, a bearing block 6 is connected on the end face of one end of the prostate stent body 1, the two ends of the first connecting rod 5 are respectively connected with the bearing block 6 and the connecting column 3, when in an initial state, during the use, release prostate support body 1, outside expansion of prostate support body 1 along pipe 7 axis drives head rod 5 and spliced pole 3 motion, and then drives cardboard 2 motion, and is coaxial with prostate support body 1 up to spliced pole 3, and cardboard 2 laminates in bladder 8 inner wall this moment. The prostate 10 is located in the lower part of the bladder 8, at the bladder orifice, around the bladder neck and at the upper end of the prostate 10, there is an internal sphincter 9, the internal sphincter 9 controlling the discharge of urine. When the prostate stent body 1 is placed in the process, the clamping plate 2 needs to enter the bladder 8 from the bladder opening firstly, then the clamping plate is moved and attached to the inner wall of the bladder 8, when the prostate stent body 1 is used, a patient obtains the length of the hyperplasia position of the prostate 10 from the bladder opening in clinical examination, the prostate stent with the corresponding size is selected according to the information, the prostate stent body 1 is conveyed to a specified position by the catheter 7, at the moment, the clamping plate 2 enters the bladder 8 through the bladder opening, the prostate stent body 1 is released, the prostate stent body 1 expands towards the periphery along the axis of the catheter 7 to drive the first connecting rod 5 and the connecting column 3 to move, and then the clamping plate 2 is driven to move, so that the clamping plate 2 is attached to the inner wall of the bladder 8, the connecting column 3 is coaxial with the prostate stent body 1, at the moment, the connecting column 3 is coaxial with the urethra at the position, when the internal sphincter 9 is tensed, the bladder orifice closes. The connecting column 3 in this embodiment is a cylinder of smaller diameter. In this embodiment, two ends of the prostate stent body 1 are respectively connected with metal plates which are opaque to X-rays.

Example 2

To further enhance the stability of the fixation of the prostatic stent, this embodiment is further explained on the basis of embodiment 1: the bearing block 6 and the clamping plate 2 are arranged in two, the connecting rod 4 and the first connecting rod 5 are arranged in two, the connecting rod 3 comprises two semi-connecting columns 31, two ends of the first connecting rod 5 are respectively connected with the bearing block 6 and the semi-connecting columns 31, two ends of the connecting rod 4 are respectively connected with the clamping plate 2 and the semi-connecting columns 31, the bearing block 6, the first connecting rod 5, the connecting rod 4, the semi-connecting columns 31 and the clamping plate 2 form clamping units, the two clamping units are rotationally and symmetrically arranged along the axis of the prostate stent body 1, the connecting rod 4 and the first connecting rod 5 in any one clamping unit movably penetrate through the semi-connecting column 31 in the other clamping unit, when in use, the prostate stent body 1 is released, the prostate stent body 1 expands outwards along the axis of the guide pipe 7 to drive the two clamping units to move in opposite directions until the two semi-connecting columns 31 are, form the spliced pole 3 with the coaxial setting of prostate support body 1, two cardboard 2 all laminate in 8 inner walls of bladder this moment. In this embodiment, the two connecting columns 3 are both semi-cylinders, the connecting columns 3 formed after being attached together are cylinders, and the diameter of the connecting columns 3 is smaller and is coaxial with the prostate stent body 1. In order to prevent the parts from being corroded by urine, the clamping plate 2, the connecting column 3, the connecting rod 4, the first connecting rod 5 and the bearing block 6 are made of corrosion-resistant metal materials, and stainless steel materials are adopted in the embodiment.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The anti-slip prostate stent comprises a prostate stent body (1), wherein the prostate stent body (1) is a net-shaped stent made of nickel-titanium memory alloy, the prostate stent body (1) is sleeved on a catheter (7), and the anti-slip prostate stent is characterized by further comprising a clamping plate (2), a connecting rod (4) and a first connecting rod (5), the clamping plate (2) is an arc-shaped plate, the inner side wall of the clamping plate (2) is matched with the inner wall of a human bladder (8), one end of the connecting rod (4) is connected with the outer side wall of the clamping plate (2), the other end of the connecting rod (4) is connected with a connecting column (3), the axis of the connecting column (3) is parallel to the axis of the prostate stent body (1), a bearing block (6) is connected onto the end face of one end of the prostate stent body (1), the two ends of the first connecting rod (, during initial state, the pipe (7) is established to prostate support body (1) cover, spliced pole (3) axis is parallel with prostate support body (1) axis, during the use, release prostate support body (1), outside expansion of pipe (7) axis is followed in prostate support body (1), drive head rod (5) and spliced pole (3) motion, and then drive cardboard (2) motion, until spliced pole (3) and prostate support body (1) are coaxial, cardboard (2) laminate in bladder (8) inner wall this moment.

2. Anti-slip prostate stent according to claim 1, characterized in that the connecting column (3) is a cylinder.

3. The prostate stent with anti-slipping function according to claim 1, wherein the carrier block (6) and the clamping plate (2) are provided in two, the connecting rod (4) and the first connecting rod (5) are provided in two, the connecting rod (3) comprises two half-connecting rods (31), two ends of the first connecting rod (5) are respectively connected with the carrier block (6) and the half-connecting rods (31), two ends of the connecting rod (4) are respectively connected with the clamping plate (2) and the half-connecting rods (31), the carrier block (6), the first connecting rod (5), the connecting rod (4), the half-connecting rods (31) and the clamping plate (2) form clamping units, the two clamping units are rotationally and symmetrically arranged along the axis of the prostate stent body (1), and the connecting rod (4) and the first connecting rod (5) in any one clamping unit movably penetrate through the half-connecting rod (31) in the other clamping unit, during the use, release prostate support body (1), outside expansion of catheter (7) axis is followed in prostate support body (1), drives two block units toward opposite direction motion, closely laminates until two semi-joint post (31), forms spliced pole (3) with the coaxial setting of prostate support body (1), and two cardboard (2) all laminate in bladder (8) inner wall this moment.

4. Anti-slipping prostate stent according to claim 3, characterized in that both half-connecting columns (31) are semi-cylindrical, and the connecting column (3) formed after being attached together is cylindrical.

5. Anti-slipping prostate support according to any one of claims 1 to 4, characterized in that the clamping plate (2), the connecting column (3), the connecting rod (4), the first connecting rod (5) and the bearing block (6) are made of corrosion-resistant metal material.