Snakelike hard endoscope sheathing canal

Abstract

The utility model discloses a snakelike hard endoscope sheathing canal which comprises a main endoscope sheathing canal, an outer tube, an inner tube, a connecting tube, an air bag, an inflation tube and an inflation nozzle, the main endoscope sheathing canal is a double-wall snakelike stainless steel tube which is formed by sleeving the outer tube outside the inner tube and fusing the tube walls of the outer tube and the inner tube at two ends, the main endoscope sheathing canal can be freely bent, and the connecting tube is a single-layer solid-wall stainless steel straight tube. The inflating tube is arranged in the wall of the connecting tube, one end of the inflating tube is communicated with the air bag, the other end of the inflating tube is communicated with the inflating nozzle, and the inflating nozzle is a self-closing switch device arranged on the connecting tube and can be connected with an inflating and deflating device to pressurize and inflate the air bag through the inflating tube. The main endoscope sheathing canal is in a straight pipe shape under the pressure action of the air bag; the snakelike hard endoscope sheathing canal further comprises a treatment channel opening, a breathing machine connector and a front tongue. The flexible endoscope sheath tube has the advantages that the main endoscope sheath tube adopts the snakelike design, the air bag can be guided by the flexible endoscope to be freely bent and easily inserted into an air passage when not inflated, and the air bag is pressurized and inflated to be straight after being inserted, so that the flexible endoscope and instruments can conveniently pass through.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially relates to a serpentine hard mirror sheath. BACKGROUND

[0002] The hard mirror sheath is a kind of medical instrument in hard bronchoscope system, is inserted into air passage through the hard bronchoscope guidance in the mouth of patient in clinic, provides a kind of channel of examination, treatment and ventilation, the modern value of hard mirror sheath is in as respiratory endoscope intervention channel allows soft mirror and other medical instruments to enter, is observed positioning by soft mirror, is released or taken out under direct vision, laser ablation, take foreign matter, refrigeration, electrocision and electrocoagulation etc.

[0003] But in actual clinical operation, the above-mentioned device has the following problems: the device is a hard stainless steel straight pipe and cannot be bent, and the mouth of the patient and the glottis need to be kept in a straight line when being inserted into the air passage, so that the operation can be carried out, and the insertion technique is required to be higher, because of the development, obesity, abnormal anatomical structure of the patient, or because of the difficulty of the patient's position to reach the target requirement, or because of insufficient anesthesia, unskilled operator and other reasons, often difficult operation leads to insertion into the air passage failure. SUMMARY

[0004] In order to solve the above-mentioned problems existing in the prior art, the utility model provides a serpentine hard mirror sheath, which is convenient to operate and adopts a serpentine hard mirror sheath design that can be freely bent, and is easy to insert into the air passage.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a serpentine rigid endoscope sheath tube, including a main endoscope sheath tube, an outer tube, an inner tube, a connecting tube, an air bladder, an inflation tube, and an inflation nozzle. The main endoscope sheath tube is a double-walled serpentine stainless steel tube formed by the outer tube sleeved over the inner tube and the walls of the two tubes fused at both ends, which can be freely bent. Both the outer tube and the inner tube are serpentine stainless steel tubes that can be freely bent. The connecting tube is a single-layer solid-walled stainless steel straight tube connected to one end of the main endoscope sheath tube. The air bladder is a high-pressure air bladder and is placed in the double-walled structure of the main endoscope sheath tube. The inflation tube is placed in the wall of the connecting tube, with one end communicating with the air bladder and the other end communicating with the inflation nozzle. The inflation nozzle is a self-closing switch device, placed on the connecting tube, and can be connected to an inflation / deflation device. The inflation / deflation device is in the open state when connected and in the closed state when disconnected. The inflation nozzle connected to the inflation device inflates or deflates the airbag through the inflation tube, increasing or decreasing the pressure inside the airbag. When the pressure inside the airbag increases, the main endoscope sheath remains straight under the pressure of the airbag; when the pressure inside the airbag decreases, the main endoscope sheath returns to a flexible shape. The serpentine rigid endoscope sheath also includes a treatment channel, a ventilator interface, and a front tongue. The treatment channel is the end of the connecting tube, serving as a channel for instrument examination and treatment. The ventilator interface is located on the side wall of the connecting tube, serving as a ventilator connection port. The front tongue is the other end of the main endoscope sheath extending forward into a single-layer solid-walled, beveled opening, facilitating airway insertion and reducing damage during insertion.

[0006] Compared with the prior art, the advantages of this utility model are as follows: the serpentine design of the main endoscope sheath allows it to bend freely when inserted into the airway by a flexible endoscope in the uninflated state of the airbag, expanding the operating field of view and operating space and facilitating airway insertion. After airway insertion, the airbag is pressurized and inflated, and the main endoscope sheath changes from a curved shape to a straight tube under the pressure of the airbag, facilitating the passage of the flexible endoscope and instruments. When the gas in the airbag is expelled and the pressure inside the airbag is reduced, the main endoscope sheath returns to a flexible shape from a straight tube. The operation is simple and convenient, avoiding difficulties and insertion failures caused by various factors when inserting into the airway. Attached Figure Description

[0007] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0008] Figure 2 This is a three-dimensional structural diagram of the disassembled state of this utility model. Detailed Implementation

[0009] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, but this is not intended to limit the present invention.

[0010] Example 1: As shown in the figure, a serpentine rigid endoscope sheath includes a main endoscope sheath 1, an outer tube 4, an inner tube 5, a connecting tube 2, an air bladder 3, an inflation tube 8, and an inflation nozzle 7. The main endoscope sheath 1 is a double-walled serpentine stainless steel tube formed by the outer tube 4 being fitted over the inner tube 5 and the walls of the two tubes being fused at both ends. It can be freely bent. Both the outer tube 4 and the inner tube 5 are serpentine stainless steel tubes that can be freely bent. The connecting tube 2 is a single-layer solid-walled stainless steel straight tube connected to one end of the main endoscope sheath 1. The air bladder 3 is a high-pressure air bladder placed in the double-walled structure of the main endoscope sheath 1. The inflation tube 8 is placed in the wall of the connecting tube 2, with one end connected to the air bladder 3. One end is connected to the inflation nozzle 7, which is a self-closing switch device. It is installed on the connecting tube 2 and can be connected to the inflation / deflation device. When connected to the inflation / deflation device, it is in the open state, and when disconnected, it is in the closed state. The serpentine rigid endoscope sheath also includes a treatment channel port 9, a ventilator interface 10, and a front tongue 6. The treatment channel port 9 is the port at the top of the connecting tube 2 and serves as the instrument examination and treatment channel. The ventilator interface 10 is located on the side wall of the connecting tube 2 and serves as the ventilator connection port. The front tongue 6 extends forward from the other end of the main endoscope sheath 1 into a single-layer solid wall sloping mouth-shaped front end, which facilitates insertion into the airway and reduces damage during insertion.

[0011] Example 2: As shown in the figure, the other structures are the same as in Example 1. The difference is that when the serpentine rigid endoscope sheath is inserted into the airway by the flexible endoscope in the uninflated state of the airbag 3, the main endoscope sheath 1 can be freely bent for easy insertion. After insertion into the airway, the airbag 3 is pressurized by the inflation nozzle 7 connected to the inflation device through the inflation tube 8, which increases the pressure inside the airbag 3. Under the pressure of the airbag 3, the main endoscope sheath 1 changes from a bent shape to a straight tube shape, which facilitates the passage of the flexible endoscope and instruments. The gas inside the airbag 3 is discharged, which reduces the pressure inside the airbag, and the main endoscope sheath 1 returns to a bendable shape from a straight tube shape.

[0012] It is worth noting that the above description is only a preferred embodiment of this utility model and does not limit the scope of patent protection of this utility model. This utility model can also improve the materials and structure of the above-mentioned components, or replace them with technical equivalents. Therefore, all equivalent structural changes made based on the description and drawings of this utility model, or direct or indirect applications to other related technical fields, are similarly included within the scope of this utility model.

Claims

1. A rigid snake mirror sheath, characterized by: The main mirror sheath pipe, the outer pipe, the inner pipe, the connecting pipe, the air bag, the inflation pipe and the inflation nozzle, the main mirror sheath pipe is the double wall serpentine stainless steel pipe that the outer pipe is covered the inner pipe outside and the pipe wall is fused at both ends, the outer pipe and the inner pipe are serpentine stainless steel pipe, the connecting pipe is single layer solid wall stainless steel straight pipe, is connected in the main mirror sheath pipe one end, the air bag is high pressure air bag, is arranged in the main mirror sheath pipe double wall, the inflation pipe is arranged in the connecting pipe pipe wall, one end with the air bag is communicated, the other end with the inflation nozzle is connected, the inflation nozzle is arranged on the connecting pipe, the serpentine hard mirror sheath pipe still includes treatment channel mouth, breathing machine interface and front tongue, the treatment channel mouth is the port of the connecting pipe top end, the breathing machine interface is established on the connecting pipe side wall, the front tongue is the other end of the main mirror sheath pipe and is extended as single layer solid wall inclined plane mouth shape front end.

2. A rigid snake mirror sheath according to claim 1, wherein: The inflation nozzle is self-closing switch device, can be connected with inflation and deflation device, is opened state when being connected with inflation and deflation device, is closed state when being disconnected, through the inflation nozzle through the inflation pipe can be inflated or extracted gas to the air bag.

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