CN212547196U

CN212547196U - Water-gas button of endoscope

Info

Publication number: CN212547196U
Application number: CN202021549763.9U
Authority: CN
Inventors: 雷达; 钱畅; 韩贯通
Original assignee: Anrei Medical HZ Co Ltd
Current assignee: Anrei Medical HZ Co Ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-02-19
Anticipated expiration: 2030-07-30

Abstract

The utility model relates to the technical field of medical devices and discloses an endoscope water-gas button, which comprises a main shaft, wherein a main shaft middle hole is formed on the main shaft, one end of the main shaft is a head end, the other end of the main shaft is fixedly connected with a main shaft narrow section, and a main shaft side hole communicated with the main shaft middle hole is formed at the joint of the main shaft and the main shaft narrow section; the main shaft is provided with a main shaft step and a main shaft limit, the main shaft is sleeved with a guide piece, the guide piece comprises a guide piece base, the guide piece base is abutted to the main shaft limit and is fixedly connected with the main shaft limit, a soft rubber sleeve is sleeved outside the guide piece, a rubber sleeve hole is formed in the soft rubber sleeve, the inner wall of the soft rubber sleeve is provided with a limit groove, and the guide piece is clamped in the limit groove; an elastic piece is sleeved on the main shaft, one end of the elastic piece is fixed with the head end, and the other end of the elastic piece is abutted against the guide piece base; sealing structures are arranged on the main shaft at the two sides of the main shaft side hole and the narrow surface section of the main shaft. The utility model discloses it is simple and convenient to use, and the operator is difficult to obscure and makes mistakes, can reduce the operation risk.

Description

Water-gas button of endoscope

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an endoscope aqueous vapor button.

Background

The most direct benefit brought to patients by the rapid development of modern medical science and technology is that the operation is simpler and simpler, the wound is smaller and smaller, and the effect is better and better through the advanced technology. The surgery is one of the subjects with the smallest difference between the medical field and the advanced level of the world in China, and particularly with the progress of related technologies such as imaging, computers, materials science, electronics and the like and the improvement of the operation level of doctors, the modern minimally invasive surgical technology without opening a knife can replace the traditional operation more and is changing with the difference of the new and the different purposes, wherein the application of the endoscope technology has more important significance. In endoscopic surgery, it is necessary to deliver gases and liquids (typically saline) within the body of a patient. The conveying gas is used for expanding the body cavity, so that the operation of an operator is facilitated; the liquid is conveyed to clean the endoscope lens to keep the visual field clear. Thus, there is a need for a water and gas switchable button that is mounted on a water and gas button mount of an endoscope to control the opening and closing of water or gas.

Patent publication No. CN202335846U discloses a switching valve assembly for an endoscope, which includes a cylinder, a piston unit, a button device, a flow channel in the piston unit, and a plurality of flow openings. The piston unit switches the flow line between communication and interruption by changing the combination of the flow opening and the flow passage for communication. The switching valve assembly includes a cylinder head device and a cup-shaped slide device. The end ring retaining slide assembly is received in the cylinder head assembly. A first coil spring is disposed between the slider and the cylinder head assembly for biasing the slider in an upward direction away from the cylinder. The second coil spring is disposed between the button device and the slide device for biasing the button device in an upward direction with a smaller biasing force than the first coil spring.

The diverter valve subassembly of this patent adopts two kinds of springs that the elastic coefficient is different for the depth control that control button pressed intakes or admits air, and in actual operation, it is uncontrollable to appear pressing the depth easily like this, has into water or admits air and confuses the risk, thereby influences medical staff's operation, and medical staff uses also inconvenient.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an endoscope aqueous vapor button, it is simple and convenient to use, and the operator is difficult to obscure and makes mistakes, can reduce the operation risk.

The utility model discloses an above-mentioned technical problem is solved to following technical means:

an endoscope water-gas button comprises a main shaft, wherein a main shaft center hole is formed in the main shaft, one end of the main shaft is a head end, the other end of the main shaft is fixedly connected with a main shaft narrow surface section, the diameter of the main shaft narrow surface section is smaller than that of the main shaft, and a main shaft side hole communicated with the main shaft center hole is formed in the joint of the main shaft and the main shaft narrow surface section; the spindle is provided with spindle steps and spindle limiting, the spindle is sleeved with a guide part, the guide part comprises a guide part base, the guide part base is abutted against and fixedly connected with the spindle limiting, a soft rubber sleeve is sleeved outside the guide part, a rubber sleeve hole is formed in the soft rubber sleeve, the inner wall of the soft rubber sleeve is provided with a limiting groove, and the guide part is clamped in the limiting groove; an elastic piece is sleeved on the main shaft, one end of the elastic piece is fixed with the head end, and the other end of the elastic piece is abutted against the guide piece base; and sealing structures are arranged on the main shaft at the two sides of the main shaft side hole and the narrow surface section of the main shaft.

Further, fixedly connected with skull on the head end of main shaft, set up the skull through-hole with main shaft mesopore intercommunication on the skull, the one end that the guide base was kept away from to the elastic component offsets with the skull, skull and main shaft step offset. The end of the elastic piece can be abutted and fixed by arranging the head cover, and the operation is more convenient when the hole opening of the hole in the main shaft is pressed by hands.

Further, the sealing structure comprises a first clamping position, a second clamping position and a third clamping position, the first clamping position is located on the main shaft, the second clamping position and the third clamping position are located on the narrow surface section of the main shaft, a first sealing ring is sleeved on the first clamping position, and a second sealing ring is sleeved on the second clamping position; and a third sealing ring is sleeved on the third clamping position. When the button is installed on an external water-gas button seat, the annular space between the main shaft and the water-gas button seat can be blocked by the sealing rings to form sealing.

Furthermore, a fourth clamping position is arranged on the main shaft between the main shaft limiting position and the first sealing ring, and a fourth sealing ring is sleeved on the fourth clamping position. The setting of fourth screens and fourth sealing washer, the annular space that can be further between main shaft and the aqueous vapor button seat seals, avoids the gas leakage when conveying gas.

Further, the first sealing ring is conical, and the diameter of one end, close to the narrow surface section of the main shaft, of the first sealing ring is smaller than that of one end, far away from the narrow surface section of the main shaft. So, conical first sealing washer, when needs intake, press the skull, the elastic component is compressed, and the main shaft moves down the back, and first sealing washer can be better plug up the annular space between main shaft and the aqueous vapor button seat, and sealed effect is better.

Further, the diameter of the rubber sleeve hole is larger than that of the head cover. So, when pressing the skull during downstream, the skull can enter into the gum cover of flexible glue cover downthehole, and then shortens the total length size of button.

Further, the elastic member is a spring. The spring has good elasticity and restoring force, is simple and easy to obtain and has low cost.

The utility model has the advantages that:

1. after the utility model is arranged on the water-gas button seat, when air needs to be fed, the fingers are pressed against the hole opening of the central hole of the main shaft, the head cover does not need to be pressed, and the air flows out from the air outlet; when water needs to be fed, the pressure head cover is pressed by fingers, the spring is compressed in a pressed state, the head cover and the spindle move downwards, the first sealing ring abuts against the channel cone to form a sealing surface, gas is prevented from being introduced into the gas outlet, the third sealing ring moves downwards to be below the water inlet, water is introduced into the water outlet through an annular space between the water inlet and the narrow surface section of the spindle, and the water cannot leak upwards from the water-gas channel due to the existence of the second sealing ring; in the whole water-gas conversion process, the opening of the hole in the main shaft is plugged by fingers or the head cover is pressed, so that the operation is very simple and convenient, an operator is not easy to confuse and mistake, and the operation risk is reduced.

2. The utility model discloses an each part can adopt medical plastics and silicon rubber production, low in production cost, and the product can be once only, need not sterilization before the use, makes things convenient for medical personnel to use.

Drawings

Fig. 1 is a schematic structural view of an endoscope water-gas button in a natural state;

fig. 2 is a schematic structural view of the endoscope in a water-gas button pressing state;

fig. 3 is a schematic sectional view of the endoscope in a natural state of the water-gas button;

fig. 4 is a schematic sectional view of an endoscope in a water-gas button pressing state;

fig. 5 is a schematic sectional view of the water-air button seat of the present invention in a natural state;

fig. 6 is a schematic sectional view of the assembled water/gas button seat of the present invention in a pressing state.

The water-gas button comprises a water-gas button 1, a head cover 11, a soft rubber sleeve 12, a main shaft 13, a first sealing ring 14, a second sealing ring 15, a third sealing ring 16, a fourth sealing ring 17, a guide part 18, a spring 19, a main shaft step 131, a main shaft middle hole 132, a main shaft narrow surface section 133, a main shaft side hole 134, a main shaft limiting 135, a first clamping position 136, a second clamping position 137, a third clamping position 138, a fourth clamping position 139, a guide part base 181, a water-gas button seat 2, a water inlet 21, a water inlet 22, a water outlet 23, a gas outlet 24, a water-gas button seat boss 25 and a water-gas button inner wall 26.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings:

as shown in fig. 1-6:

an endoscope water-gas button 1 comprises a main shaft 13, wherein a main shaft center hole 132 is formed in the main shaft 13, a head cover 11 is bonded to the upper end of the main shaft 13, a head cover through hole communicated with the main shaft center hole 132 is formed in the head cover 11, a main shaft narrow face section 133 is integrally formed at the other end of the main shaft 13, the diameter of the main shaft narrow face section 133 is smaller than that of the main shaft 13, and a main shaft side hole 134 communicated with the main shaft center hole 132 is formed at the joint of the main shaft 13 and the main shaft narrow face section 133; the main shaft 13 is provided with a main shaft step 131 and a main shaft limit 135, the end part of the head cover 11 is abutted against the main shaft step 131, the main shaft 13 is sleeved with a guide part 18, the guide part 18 comprises a guide part base 181, the guide part base 181 is abutted against and fixedly connected with the main shaft limit 135, a soft rubber sleeve 12 is sleeved outside the guide part 18, a rubber sleeve hole is formed in the soft rubber sleeve 12, the diameter of the rubber sleeve hole is larger than that of the head cover 11, the inner wall of the soft rubber sleeve 12 is provided with a limit groove, and the guide part 18 is clamped in the limit groove; a spring 19 is sleeved on the main shaft 13, one end of the spring 19 is abutted against the head cover 11, and the other end of the spring 19 is abutted against the guide base 181; the spindle 13 and the spindle narrow face section 133 on two sides of the spindle side hole 134 are both provided with a sealing structure, the sealing structure comprises a first clamping position 136, a second clamping position 137, a third clamping position 138 and a fourth clamping position 139, the first clamping position 136 and the fourth clamping position 139 are positioned on the spindle 13, the second clamping position 137 and the third clamping position 138 are positioned on the spindle narrow face section 133, the first clamping position 136 is sleeved with a first sealing ring 14, and the second clamping position 137 is sleeved with a second sealing ring 15; the third stopper 138 is sleeved with a third sealing ring 16, the fourth stopper 139 is sleeved with a fourth sealing ring 17, wherein the first sealing ring 14 is conical, and the diameter of the end of the first sealing ring 14 close to the spindle narrow face section 133 is smaller than the diameter of the end far away from the spindle narrow face section 133.

This aqueous vapor button 1 is used for aqueous vapor button seat 2, as shown in fig. 5 and 6, aqueous vapor button seat 2 contains air inlet 22, water inlet 21, gas outlet 24, delivery port 23, aqueous vapor button seat 2 boss, during the installation, inserts the main shaft 13 and the narrow face section 133 of main shaft of this aqueous vapor button 1 on aqueous vapor button seat 2 to make the guide base 181 of guide 18 offset with aqueous vapor button seat 2 boss.

In a natural state of the water-gas button 1, the spring 19 is in a natural extension state, the head cover 11 is ejected out from the head end of the spring 19 to drive the main shaft 13 to move upwards, so that the main shaft side hole 134 is opposite to the water inlet 21 of the water-gas button seat 2, and gas flows out from the main shaft center hole 132; due to the existence of the second sealing ring 15 and the third sealing ring 16, gas cannot leak upwards from the water-gas channel, and the second sealing ring 15 is positioned between the water inlet 21 and the water outlet 23 to isolate water.

When in use, when air needs to be fed, an operator uses fingers to abut against the opening of the central hole 132 of the main shaft, the head cover 11 does not need to be pressed, and air flows out of the air outlet 24; when water needs to be fed, the pressure head cover 11 is pressed by fingers, the spring 19 is compressed in a pressed state, the head cover 11 and the spindle 13 move downwards, the first sealing ring 14 abuts against the cone part of the channel to form a sealing surface, gas is prevented from flowing into the gas outlet 24, the third sealing ring 16 moves downwards below the water inlet 21, water flows into the water outlet 23 through an annular space between the water inlet 21 and the spindle 13 and the spindle narrow surface section 133, and water cannot leak upwards from a water-gas channel due to the existence of the second sealing ring 15; in the whole water-gas conversion process, only the hole of the main shaft middle hole 132 needs to be plugged by fingers or the head cover 11 needs to be pressed, the use is very simple and convenient, and operators are not easy to confuse and mistake, so that the operation risk is reduced.

Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims. The technology, shape and construction parts which are not described in detail in the present invention are all known technology.

Claims

1. An endoscope aqueous vapor button which characterized in that: the spindle is provided with a spindle center hole, one end of the spindle is a head end, the other end of the spindle is fixedly connected with a spindle narrow-face section, the diameter of the spindle narrow-face section is smaller than that of the spindle, and a spindle side hole communicated with the spindle center hole is formed in the joint of the spindle and the spindle narrow-face section; the spindle is provided with spindle steps and spindle limiting, the spindle is sleeved with a guide part, the guide part comprises a guide part base, the guide part base is abutted against and fixedly connected with the spindle limiting, a soft rubber sleeve is sleeved outside the guide part, a rubber sleeve hole is formed in the soft rubber sleeve, the inner wall of the soft rubber sleeve is provided with a limiting groove, and the guide part is clamped in the limiting groove; an elastic piece is sleeved on the main shaft, one end of the elastic piece is fixed with the head end, and the other end of the elastic piece is abutted against the guide piece base; and sealing structures are arranged on the main shaft at the two sides of the main shaft side hole and the narrow surface section of the main shaft.

2. The water-gas button of an endoscope according to claim 1, wherein: fixedly connected with skull on the head end of main shaft, set up the skull through-hole with main shaft mesopore intercommunication on the skull, the one end that the guide base was kept away from to the elastic component offsets with the skull, skull and main shaft step offset.

3. The water-gas button of an endoscope according to claim 2, wherein: the sealing structure comprises a first clamping position, a second clamping position and a third clamping position, the first clamping position is positioned on the main shaft, the second clamping position and the third clamping position are positioned on the narrow surface section of the main shaft, a first sealing ring is sleeved on the first clamping position, and a second sealing ring is sleeved on the second clamping position; and a third sealing ring is sleeved on the third clamping position.

4. The water-gas button of an endoscope according to claim 3, wherein: and a fourth clamping position is arranged on the main shaft between the main shaft limiting position and the first sealing ring, and a fourth sealing ring is sleeved on the fourth clamping position.

5. The water-gas button of endoscope according to claim 4, characterized in that: the first sealing ring is conical, and the diameter of one end, close to the narrow surface section of the main shaft, of the first sealing ring is smaller than that of one end, far away from the narrow surface section of the main shaft.

6. The water-gas button of endoscope according to claim 5, characterized in that: the diameter of the rubber sleeve hole is larger than that of the head cover.

7. An endoscope water-gas button according to any one of claims 1-6, characterized in that: the elastic piece is a spring.