Plastic support for recyclable particle bin of bile and pancreatic duct for endoscope
By designing a plastic stent for recyclable particle chamber for bile-pancreatic ducts for endoscopy, the problem of ineffective combination of particle therapy and stent recovery in the prior art is solved, the effectiveness of particle therapy and stent recovery are achieved, and the recovery of stents is improved. Treatment effect and clinical efficacy.
Patent Information
- Application Number
- CN202420465237.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-03-11
AI Technical Summary
When the existing bile-pancreatic duct stent is treated with unresectable hilar cholangiocarcinoma, it is impossible to achieve effective binding of particle therapy and recovery of stents, resulting in poor particle contamination and treatment effect.
A plastic bracket for recyclable particle chamber for bile-pancreatic ducts for endoscopy is designed, including a shell, particle chamber, front wing of anti-particle fallout and back wing of anti-particle fallout. A drainage channel is formed in the shell, and an exhaust hole is provided in the particle chamber and The opening and front and rear wings are respectively used to prevent particles from falling off.
It realizes the placement of particles while placing the stent and is recovered with the stent after the particles fail, reducing particle contamination and improving the effectiveness of tumor treatment and long-term clinical efficacy.
Smart Images
Figure CN222427011U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gallbladder stents, in particular to an endoscopic gallbladder and pancreatic duct recyclable particle bin plastic stent. Background Art
[0002] Cholangiocarcinoma refers to a malignant tumor that occurs in the epithelium lining the bile duct system. It can be divided into intrahepatic cholangiocarcinoma (ICC) and extrahepatic cholangiocarcinoma (ECC) according to its location. ECC can be further divided into hilar cholangiocarcinoma (HCCA) and distal cholangiocarcinoma, of which HCCA is the most common cholangiocarcinoma in clinical practice, accounting for more than 50% of cholangiocarcinoma. Currently, the preferred treatment is radical surgical resection, but it often has an insidious onset and often has no special clinical features in the early stages. It is often discovered during physical examinations or imaging examinations, and is often in the late stage when seeking medical treatment, losing the opportunity for surgical resection. Therefore, for unresectable HCCA, palliative treatment becomes the key to treatment.
[0003] In recent years, the implantation of metal stents and plastic stents has become a common means of palliative treatment. Simple stent implantation under ERCP can only solve the clinical effect of decompressing the bile and pancreatic duct and alleviating jaundice. Puncture implantation of seeds under color Doppler ultrasound positioning is one of the effective ways to treat liver malignancies, but the puncture particles cannot be recovered after implantation. If ERCP technology is used to place bile and pancreatic duct stents and particles at the same time, the tumor treatment effect and long-term clinical efficacy can be greatly improved. After the particles fail, the stent is recovered and the particles are recovered at the same time, which reduces particle contamination and facilitates the replacement of new stents and the placement of new particles.
[0004] Currently, only plastic stents, metal stents, and coated metal stents are used clinically, and their design and technology cannot meet clinical needs. Utility Model Content
[0005] The main purpose of the embodiment of the utility model is to provide an endoscopic bile and pancreatic duct recyclable particle bin plastic stent, aiming to design a stent that can meet the needs of particle therapy.
[0006] The utility model provides a technical solution to solve the above technical problems, which is to provide a plastic bracket for a recyclable particle bin of a bile and pancreatic duct for endoscopy, comprising: a shell, a particle bin, a front wing for preventing particle shedding and a rear wing for preventing particle shedding, wherein a drainage channel is formed in the shell; the particle bin is attached to the inner wall of the shell; and a cavity is formed in the particle bin, and an exhaust hole is provided at the front end of the particle bin, and the exhaust hole penetrates the inner wall of the shell; an opening is provided at the rear end of the particle bin; the front wing for preventing particle shedding is fixed at the front end of the particle bin, one end of the front wing for preventing particle shedding is connected to the cavity wall of the particle bin, and the other end is provided with a gap with the cavity wall of the particle bin; the rear wing for preventing particle shedding is fixed at the rear end of the particle bin, one end of the rear wing for preventing particle shedding is connected to the cavity wall of the particle bin, and the other end is provided with a gap with the cavity wall of the particle bin.
[0007] Furthermore, it also includes a particle anti-falling ridge, which is arranged on the inner wall of the particle bin, and the particle anti-falling ridge is located on the side of the anti-particle shedding rear wing away from the anti-particle shedding front wing, and the particle anti-falling ridge is located on the side of the gap between the anti-particle shedding rear wing and the cavity wall of the particle bin.
[0008] Furthermore, it also includes an anti-falling side wing, which is obliquely arranged on the shell.
[0009] Furthermore, the front end of the shell is configured to be in a bullet shape.
[0010] Furthermore, a plurality of inner drainage side holes are arranged on the side of the shell.
[0011] Furthermore, the outer diameter of the shell is 6Fr to 10Fr, and the length of the bracket is 8 to 16 cm.
[0012] The technical solution of the utility model is as follows: a particle bin is arranged on the inner wall of a shell, the particle bin is provided with an exhaust hole and an opening for loading particles, and a front wing for preventing particles from falling off is arranged at the position of the exhaust hole, the front wing for preventing particles from falling off is arranged to be tilted backward (tilted in the direction of backward), so that particles are conveniently put into the particle bin from the exhaust hole and can well prevent particles from falling off from the bin; a rear wing for preventing particles from falling off is arranged at the opening position, the rear wing for preventing particles from falling off is arranged to be tilted forward (tilted in the direction of forward), so that particles are conveniently put into the particle bin from the opening and can prevent particles from falling off from the bin; during implementation, particles are placed at the same time as the bracket is placed, and after the particles fail, they are recovered together with the bracket, so that the bracket can simultaneously meet the effect of particle therapy. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0014] Figure 1 This is a schematic diagram of the structure of the plastic stent with recyclable particle bin for endoscopic bile and pancreatic duct according to the utility model;
[0015] Figure 2 The utility model discloses a plastic support for the bile and pancreatic duct with recyclable particles for endoscopy.
[0016] Description of Figure Numbers:
[0017] Label name Label name 10 case 30 Anti-particle shedding front wing 11 Drainage channel 40 Anti-particle shedding rear wing 20 Particle Bin 50 Particles prevent shedding and bulge 21 Cavity 60 Anti-drop side wings 22 Exhaust Hole 70 Internal drainage hole 23 Opening DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the utility model specification to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0020] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "several" or "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0021] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0022] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0023] The utility model provides a plastic stent with a recyclable particle bin for the bile and pancreatic duct used in an endoscope, aiming to design a stent that can simultaneously meet the requirements of particle therapy.
[0024] The following will describe the plastic stent for the endoscopic bile and pancreatic duct with recyclable particles provided by the utility model in a specific embodiment:
[0025] In the technical solution of this embodiment, Figure 1 , Figure 2 As shown, a plastic bracket for a recyclable particle bin of a bile and pancreatic duct for endoscopy comprises: a shell 10, a particle bin 20, a front wing 30 to prevent particle shedding, and a rear wing 40 to prevent particle shedding, wherein a drainage channel 11 is formed in the shell 10; the particle bin 20 is attached to the inner wall of the shell 10; and a cavity 21 is formed in the particle bin 20, and an exhaust hole 22 is provided at the front end of the particle bin 20, and the exhaust hole 22 penetrates the inner wall of the shell 10; an opening 23 is provided at the rear end of the particle bin 20; the front wing 30 to prevent particle shedding is fixed at the front end of the particle bin 20, one end of the front wing 30 to prevent particle shedding is connected to the cavity wall of the particle bin 20, and the other end is provided with a gap in the cavity wall of the particle bin 20; the rear wing 40 to prevent particle shedding is fixed at the rear end of the particle bin 20, one end of the rear wing 40 to prevent particle shedding is connected to the cavity wall of the particle bin 20, and the other end is provided with a gap in the cavity wall of the particle bin 20.
[0026] It can be understood that by setting a particle bin 20 on the inner wall of the shell 10, the particle bin 20 is provided with an exhaust hole 22 and an opening 23 for filling particles, and a front wing 30 for preventing particles from falling off is set at the position of the exhaust hole 22, and the front wing 30 for preventing particles from falling off is tilted backward (tilted in the direction of backward), which is convenient for particles to be placed into the particle bin 20 from the exhaust hole 22, and can well prevent particles from falling off from the bin; a rear wing 40 for preventing particles from falling off is set at the position of the opening 23, and the rear wing 40 for preventing particles from falling off is tilted forward (tilted in the direction of forward), which is convenient for particles to be placed into the particle bin 20 from the opening 23, and prevent particles from falling off from the bin; during implementation, the particles are placed at the same time as the stent is placed, and after the particles fail, they are recovered together with the stent, so that the stent can simultaneously meet the effect of particle therapy.
[0027] Preferably, the diameter of the particle bin 20 is 1.0 mm, and the diameter of the particles is generally 0.8 mm, which is sufficient for particle placement.
[0028] Specifically, the exhaust hole 22 of the particle bin 20 is also used to facilitate flushing and lubrication of the particle bin 20 and grain loading. Two anti-particle falling wings 40 are set on the cavity wall of the particle bin 20. The drainage channel 11>0.035 inch is convenient for the common clinical guide wire placement.
[0029] Furthermore, it also includes a particle anti-falling protrusion 50, which is arranged on the inner wall of the particle bin 20, and the particle anti-falling protrusion 50 is located on the side of the anti-particle-falling rear wing 40 away from the anti-particle-falling front wing 30, and the particle anti-falling protrusion 50 is located on the side of the gap between the anti-particle-falling rear wing 40 and the cavity wall of the particle bin 20.
[0030] It can be understood that in order to prevent particles from falling out of the particle bin 20, a particle anti-falling protrusion 50 is provided on the side of the anti-particle falling rear wing 40 away from the anti-particle falling front wing 30, thereby preventing particles from flowing out of the gap between the anti-particle falling rear wing 40 and the cavity wall of the particle bin 20 to the outside of the opening 23. The particle anti-falling protrusion 50 adds an anti-slip and anti-falling design on the basis of the anti-particle falling side wing.
[0031] Furthermore, it also includes an anti-falling side wing 60 , which is obliquely arranged on the housing 10 .
[0032] It can be understood that both opposite ends of the housing 10 are provided with anti-fall-off side wings 60 for preventing the bracket from shifting.
[0033] Furthermore, the front end of the housing 10 is configured to be in a bullet shape.
[0034] It can be understood that the front end of the shell 10 is set to be in a bullet shape to facilitate the shell 10 to pass through the narrow section of the tumor.
[0035] Furthermore, a plurality of inner drainage side holes 70 are provided on the side of the shell 10 .
[0036] It can be understood that the bullet head of the shell 10 and the inner drainage side hole 70 can maximize the drainage effect at the distal end of the stenosis segment.
[0037] Furthermore, the outer diameter of the housing 10 is 6Fr to 10Fr, and the length of the stent is 8 to 16 cm.
[0038] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A plastic stent for endoscopic bile and pancreatic duct with recyclable particles, characterized in that: include: a housing, wherein a drainage channel is formed in the housing; A particle bin, the particle bin is attached to the inner wall of the shell; a cavity is formed in the particle bin, an exhaust hole is opened at the front end of the particle bin, and the exhaust hole penetrates the inner wall of the shell; an opening is opened at the rear end of the particle bin; An anti-particle-shedding front wing, wherein the anti-particle-shedding front wing is fixed at the front end of the particle bin, one end of the anti-particle-shedding front wing is connected to the cavity wall of the particle bin, and the other end is provided with a gap with the cavity wall of the particle bin; and The particle-preventing rear wing is fixed to the rear end of the particle bin, one end of the particle-preventing rear wing is connected to the cavity wall of the particle bin, and the other end is provided with a gap with the cavity wall of the particle bin.
2. The endoscopic bile and pancreatic duct recyclable particle bin plastic stent according to claim 1, characterized in that: It also includes a particle anti-falling ridge, which is arranged on the inner wall of the particle bin, and is located on the side of the anti-particle-falling rear wing away from the anti-particle-falling front wing, and the particle anti-falling ridge is located on the side of the gap between the anti-particle-falling rear wing and the cavity wall of the particle bin.
3. The endoscopic bile and pancreatic duct recyclable particle bin plastic stent according to claim 1, characterized in that: It also includes an anti-falling side wing, which is obliquely arranged on the shell.
4. The endoscopic bile and pancreatic duct recyclable particle bin plastic stent according to claim 1, characterized in that: The front end of the shell is arranged in a bullet shape.
5. The endoscopic bile and pancreatic duct recyclable particle bin plastic stent according to claim 1, characterized in that: A plurality of inner drainage side holes are arranged on the side of the shell.
6. The endoscopic bile and pancreatic duct recyclable particle bin plastic stent according to claim 1, characterized in that: The outer diameter of the shell is 6Fr to 10Fr, and the length of the bracket is 8 to 16cm.