Guiding tube with light guiding function

Abstract

The utility model discloses a guide tube with a light guide function and belongs to the technical field of medical instruments. The guiding tube with a light guiding function is developed, the guiding tube is firstly introduced, and the light-emitting position of the head can emit light in the bile duct or the pancreatic duct, so that the position of the end of the guiding tube can be clearly known, the direction of the guiding tube is controlled, and the success rate of intubation is increased; the three reflective rings at different positions can increase the identification degree of the end part of the catheter, so that the direction of the end part can be known clearly; due to the arrangement of the built-in battery, long-time standby can be achieved in the operation period, meanwhile, the integrity of the exterior of the light-emitting sleeve can be improved, and disinfection after use is facilitated; the brightness of the light-emitting lamp ring can be controlled through the switch, the brightness can be adjusted according to different thicknesses of bile ducts or pancreatic ducts of patients, and doctors can observe conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a guiding tube with a light guiding function. Background Art

[0002] Endoscopic Retrograde Cholangiopancreatography (ERCP) is currently one of the main minimally invasive treatments for biliary and pancreatic diseases. A duodenoscope is inserted orally into the descending duodenum. ERCP instruments are then passed through the duodenoscope's instrument channel through the duodenal papilla into the bile or pancreatic duct. Under X-ray fluoroscopy, contrast agent injection, lithotomy and dilation balloons, bile and pancreatic duct cell brushes, oral choledochoscopy, intraluminal ultrasound of the bile and pancreatic ducts, metal and plastic stents, nasobiliary and nasopancreatic ducts, and other instruments are used to diagnose and treat biliary and pancreatic diseases. In addition to ERCP, minimally invasive procedures such as sphincterotomy, bile and pancreatic duct lithotomy, and bile and pancreatic duct tumor stent placement and drainage can be performed. Because it requires no surgery and minimizes trauma, hospitalization time is significantly shortened, making it a popular choice among patients.

[0003] During ERCP, selective bile duct or pancreatic duct cannulation is crucial for success and also a key technical challenge. If cannulation is unsuccessful, subsequent diagnosis and treatment cannot be performed. The ERCP cannulation failure rate is high due to various reasons, reaching 5% to 10% even among experienced operators. Furthermore, repeated cannulation attempts significantly increase the incidence of postoperative complications. Improving the success rate of ERCP cannulation, particularly difficult cannulations, is currently a hot topic in the medical community. Summary of the Invention

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a guiding tube with a light guiding function.

[0005] The above technical problems of the present utility model are mainly solved by the following technical solutions: a guiding tube with a light guiding function, comprising a luminous sleeve and a catheter, the luminous sleeve being sleeved on one end of the catheter, an annular clamping ring being provided on the outer wall surface of the end where the catheter is connected to the luminous sleeve, a feedback part being provided at the end of the catheter away from the luminous sleeve, the feedback part comprising three reflecting rings provided in the catheter wall, the luminous sleeve comprising a battery, a push switch and an internal extrusion cavity, the battery and the push switch being provided on the outer tube wall of the luminous sleeve, and a silicone covering layer being provided on the surfaces of both, a conical guide hole being provided coaxially on the top of the internal extrusion cavity, a luminous light ring being provided on the top of the internal extrusion cavity, the end of the catheter being against the luminous light ring, and an annular clamping groove cooperating with the annular clamping ring being provided at the bottom of the internal extrusion cavity.

[0006] Preferably, the distance between the three reflective rings is 10 mm.

[0007] Preferably, the diameters of the three reflective rings increase sequentially from bottom to top.

[0008] Preferably, the internal extrusion cavity is a tapered cavity that is smaller at the top and larger at the bottom.

[0009] Preferably, the end face of one end of the conduit connected to the light ring is completely perpendicular to the axis of the conduit, and the end face fits tightly with the light ring.

[0010] Preferably, the catheter is made of silicone rubber or polyurethane.

[0011] Preferably, the reflective ring comprises a reflective coating with polypropylene resin as a base material.

[0012] The utility model has the beneficial effects:

[0013] By developing a guide tube with a light-guiding function, the guide tube is first inserted. The light on the head can illuminate the bile duct or pancreatic duct, so that the position of the guide tube end can be clearly determined, thereby controlling the direction of the guide tube and increasing the success rate of intubation. The reflective rings in three different positions can increase the recognition of the catheter end and clearly understand the end direction.

[0014] The built-in battery allows for long-term standby time during surgery, while also increasing the integrity of the exterior of the luminous cannula, making it easier to disinfect after use.

[0015] The switch setting can control the brightness of the light ring and adjust the brightness according to the different thickness of the patient's bile duct or pancreatic duct to facilitate doctor's observation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 This is a structural diagram of the utility model light-emitting sleeve;

[0018] Figure 3 It is a structural diagram of the feedback part of the utility model.

[0019] In the figure: 1. Luminous sleeve; 2. Conduit; 3. Annular clamp; 4. Feedback part; 5. Reflective ring; 6. Battery; 7. Push switch; 8. Internal extrusion cavity; 9. Silicone covering layer; 10. Conical guide hole; 11. Luminous light ring; 12. Annular clamping groove. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be further specifically described below with reference to embodiments and in conjunction with the accompanying drawings.

[0021] Example: A guide tube with light guidance function, such as Figure 1-Figure 3 As shown, it includes a luminous sleeve 1 and a catheter 2, the luminous sleeve 1 is sleeved on one end of the catheter 2, and an annular clamp 3 is provided on the outer wall surface of the end where the catheter 2 and the luminous sleeve 1 are connected. The end of the catheter 2 away from the luminous sleeve 1 is provided with a feedback part 4, and the feedback part 4 includes three reflective rings 5 ​​provided in the wall of the catheter 2. The luminous sleeve 1 includes a battery 6, a push switch 7 and an internal extrusion cavity 8. The battery 6 and the push switch 7 are provided on the outer wall of the luminous sleeve 1, and the surfaces of both are provided with a silicone covering layer 9. The inner A conical guide hole 10 is coaxially provided at the top of the internal extrusion cavity 8, a luminous light ring 11 is provided at the top of the internal extrusion cavity 8, the end of the conduit 2 is against the luminous light ring 11, and the bottom of the internal extrusion cavity 8 is provided with an annular groove 12 that cooperates with the annular clamping ring 3. The end face of the conduit 2 connected to the luminous light ring 11 is completely perpendicular to the axis of the conduit 2, and the end face is tightly fitted with the luminous light ring 11; the conduit 2 is made of one of silicone rubber or polyurethane; and the reflective ring 5 includes a reflective coating based on polypropylene resin.

[0022] The distance between the three reflective rings 5 ​​is 10 mm; the diameters of the three reflective rings 5 ​​increase from bottom to top; and the internal extrusion cavity 8 is a conical cavity that is smaller at the top and larger at the bottom.

[0023] The principle of the present invention is as follows: when the guide tube 2 is in use, the switch 7 is first pressed to light up the light ring 11. The light generated by the light ring 11 is transmitted to the other end through the inner wall of the tube 2. The principle is similar to that of an optical fiber. Due to the setting of the reflective ring 5, the transmitted light will be reflected to the outside of the tube 2 under the refraction of the reflective ring 5, so that the three reflective rings 5 ​​can be seen to be shining. The light passes through the nasal cavity or throat into the stomach, and the shining end shines inside. The position of the tube 2 can be clearly observed through the laparoscope, so that the tube 2 can be smoothly guided to the required position. After being guided into place, the ERCP special instrument enters the tube 2 through the tapered guide hole and is sent into the bile duct or pancreatic duct through the duodenal papilla for operation.

[0024] At the same time, the guide tube 2 can also be used for nasobiliary guidance. During gastroscopy, when the catheter 2 is passed through the nose and into the throat for traction, the position of the end of the catheter 2 can be clearly observed, thereby facilitating traction of the ventilation tube.

[0025] Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments and is susceptible to numerous variations. Any simple modifications, equivalent variations, and modifications to the above embodiments based on the technical essence of the present invention shall be deemed to fall within the scope of protection of the present invention.

Claims

1. A guiding tube with light guiding function, comprising a luminous sleeve (1) and a guide tube (2), characterized in that: The luminous sleeve (1) is sleeved on one end of the catheter (2); an annular clamping ring (3) is provided on the outer wall surface of the end of the catheter (2) connected to the luminous sleeve (1); a feedback part (4) is provided on the end of the catheter (2) away from the luminous sleeve (1); the feedback part (4) includes three reflective rings (5) arranged in the tube wall of the catheter (2); the luminous sleeve (1) includes a battery (6), a push switch (7) and an internal extrusion cavity (8); the battery (6) and the push switch (7) are arranged on the outer tube wall of the luminous sleeve (1), and a silicone covering layer (9) is provided on the surface of both; a conical guide hole (10) is coaxially provided on the top of the internal extrusion cavity (8); a luminous light ring (11) is provided on the top of the internal extrusion cavity (8); the end of the catheter (2) abuts against the luminous light ring (11); and the bottom of the internal extrusion cavity (8) is provided with an annular groove (12) matched with the annular clamping ring (3).

2. The guide tube with light guidance function according to claim 1, characterized in that: The distances between the three reflective rings (5) are all 10 mm.

3. The guiding tube with light guiding function according to claim 1, characterized in that: The diameters of the three reflective rings (5) increase sequentially from bottom to top.

4. The guiding tube with light guiding function according to claim 1, characterized in that: The internal extrusion cavity (8) is a tapered cavity that is smaller at the top and larger at the bottom.

5. The guiding tube with light guiding function according to claim 1, characterized in that: The end face of one end of the conduit (2) connected to the light-emitting ring (11) is completely perpendicular to the axis of the conduit (2), and the end face is tightly fitted to the light-emitting ring (11).

6. The guiding tube with light guiding function according to claim 1, characterized in that: The catheter (2) is made of silicone rubber or polyurethane.

7. The guiding tube with light guiding function according to claim 1, characterized in that: The reflective ring (5) comprises a reflective coating with polypropylene resin as a base material.

Images