Endoscope suction button

Abstract

The application relates to the technical field of medical equipment accessories, and discloses an endoscope suction button, which comprises a main shaft, a main shaft middle hole and a side hole are arranged in the main shaft, one end of the main shaft is provided with a main shaft step, a head cover is sleeved on the main shaft step, the head cover comprises a head cover inner cover and a head cover outer cover, and the head cover inner cover is fixedly connected with the main shaft step; a main shaft limiting part is arranged in the middle of the main shaft, a guide part is sleeved on the main shaft between the head cover inner cover and the main shaft limiting part, the guide part comprises a guide part base, the outer wall of the guide part base is in abutment with the main shaft limiting part, a soft rubber sleeve is sleeved on the outside of the guide part, a soft rubber sleeve hole is arranged at the head end of the soft rubber sleeve, the diameter of the soft rubber sleeve hole is larger than the outer diameter of the head cover outer cover; a spring is sleeved on the main shaft and the head cover inner cover, one end of the spring is in abutment with the head cover outer cover, and the other end of the spring is in abutment with the inner wall of the guide part. The endoscope suction button can solve the problems of uncontrollable rebound, jamming or failure of rebound in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical equipment accessories, in particular to an endoscope suction button. BACKGROUND

[0002] The rapid development of modern medical science and technology brings the most direct benefit to patients, that is, through advanced technology, surgery is becoming simpler and simpler, incision is becoming smaller and smaller, and effect is becoming better and better. Surgery is one of the subjects with the smallest gap between China's medical community and the world's advanced level, especially with the progress of imaging, computer, material science, electronics and other related technologies and the improvement of surgeons' operation level, modern minimally invasive surgery technology without cutting will replace traditional surgery more and more, and is undergoing rapid changes, among which the application of endoscope technology has more important significance. In endoscopic surgery, it is necessary to suck gas and body fluid in the patient's body to keep the cavity clean and the visual field clear to facilitate the operator to operate, in this process, an endoscope suction device is needed, which comprises a suction button seat, and a suction button is needed to be installed on the suction button seat to control the opening and closing of the suction device.

[0003] The patent with application number CN201110303858.1 discloses an endoscope suction button, which is arranged between a suction passage and a discharge passage, and controls suction from a suction port formed in a front end of an endoscope. The suction button has a cylinder formed with a cylinder passage, and a connecting plunger which is slidably fitted in the cylinder passage. The connecting plunger has a valve body portion and a press operation portion. The valve body portion is inserted into the cylinder passage from a first cylinder opening. The press operation portion is connected to the valve body portion from a second cylinder opening side, and protrudes from the cylinder body in a pressable manner.

[0004] The above-mentioned patent technology mainly relies on taper surface cooperation to realize product sealing, and relies on the inherent resilience of soft material to realize the resilience of the button, but such a structure is prone to risks such as uncontrollable resilience, jamming or inability to rebound at the rebounding position, and if the above risks occur during surgery, it will have a great impact on the smooth progress of the surgery. SUMMARY

[0005] Therefore, the purpose of the present application is to provide an endoscope suction button, which solves the problem that the endoscope suction button in the prior art is prone to risks such as uncontrollable resilience, jamming or inability to rebound at the rebounding position.

[0006] The present application solves the above technical problems through the following technical means:

[0007] The utility model provides an endoscope suction button, including the main shaft, the main shaft is provided with the main shaft hole in the main shaft, the main shaft is provided with the side hole with the main shaft hole intercommunication on the main shaft, the one end of main shaft is provided with the main shaft step, the main shaft step is provided with the head cover of sleeve, the head cover includes head cover inner cover and head cover outer cover, head cover inner cover is fixedly connected with the main shaft step,

[0008] The middle part of the main shaft is provided with a main shaft limit, a guide is sleeved on the main shaft between the head cover inner cover and the main shaft limit, the guide includes a guide base, the outer wall of the guide base abuts against the main shaft limit, a soft rubber sleeve is sleeved on the outside of the guide, the soft rubber sleeve includes a soft rubber sleeve head end and a soft rubber sleeve tail end, the soft rubber sleeve head end is provided with a soft rubber sleeve hole, the diameter of the soft rubber sleeve hole is greater than the outer diameter of the head cover outer cover, a spring is sleeved on the main shaft and the head cover inner cover, one end of the spring abuts against the head cover outer cover, and the other end of the spring abuts against the inner wall of the guide.

[0009] Further, the outer wall of the main shaft near the main shaft step is provided with a main shaft slot, the head cover inner cover is provided with a head cover clamping groove, and the head cover clamping groove is clamped in the main shaft slot. In this way, the fixed connection of the head cover and the main shaft step can be realized.

[0010] Further, the inner wall of the guide is provided with a sealing piece, and the end of the head cover outer cover is on a straight line with the sealing piece. When the head cover is pressed downward, the end of the head cover outer cover can abut against the sealing piece, thereby forming a seal.

[0011] Further, the soft rubber sleeve tail end is provided with a soft rubber sleeve sealing surface. The soft rubber sleeve sealing surface can press the external suction button platform to form a seal.

[0012] Further, the end of the main shaft away from the head cover is provided with an annular sealing clamping groove, and a lower sealing ring is arranged on the sealing clamping groove. The lower sealing ring can seal the annular space between the main shaft and the suction button seat, preventing air leakage during suction.

[0013] Further, a side sealing ring is arranged on the side hole. The side sealing ring can seal the connection between the side hole and the liquid / gas inlet on the suction button seat, preventing air leakage or liquid leakage.

[0014] Further, the outer wall of the guide is fixedly connected with the inner wall of the soft rubber sleeve. The fixed connection of the soft rubber sleeve and the guide can prevent the soft rubber sleeve from falling off when the user plugs or unplugs the suction button in the suction button seat.

[0015] Further, the middle part of the main shaft is provided with a main shaft boss. When the suction button is used in cooperation with the external suction button seat, the main shaft boss is inserted into the positioning groove on the suction button seat, so that the side hole on the suction button can be aligned with the liquid / gas inlet on the suction button seat, and the suction button can be limited to prevent rotation during use.

[0016] Advantages of the present application:

[0017] 1. In the natural state of the endoscope suction button, the spring pushes the head cover out, drives the main shaft upward through the head cover slot and the main shaft slot, and makes the side hole away from the liquid / gas inlet of the external suction button seat. At this time, the suction channel is blocked. When the suction button is pressed, the spring is compressed, and the head cover pushes the main shaft downward. At this time, the side sealing ring on the main shaft is opposite to the liquid / gas inlet, so that the liquid / gas inlet is aligned with the main shaft hole for forming a suction channel. After use, the spring rebounds the head cover, drives the main shaft upward, so that the side hole is away from the liquid / gas inlet of the suction button seat. During the whole process, the spring provides the product rebound force, and the rebound force is controllable.

[0018] 2. The head cover outer cover of the present application compresses the sealing piece, the soft rubber sleeve sealing surface presses the suction button seat, and the side sealing ring and the lower sealing ring form a seal with the inner wall of the suction button seat to prevent external air from being sucked in, which can avoid the problem of reduced suction amount at the liquid / gas inlet, and the overall performance is reliable. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structure diagram of an endoscope suction button of the present application;

[0020] Figure 2 is a cross-sectional structure diagram of the endoscope suction button in a natural state of the present application;

[0021] Figure 3 is a cross-sectional structure diagram of the endoscope suction button in a pressed state of the present application;

[0022] Figure 4 is a cross-sectional structure diagram of the endoscope suction button in a natural state of the present application;

[0023] Figure 5 is a cross-sectional structure diagram of the endoscope suction button in a pressed state of the present application.

[0024] The suction button 1, the head cover 11, the soft rubber sleeve 12, the main shaft 13, the spring 14, the guide 15, the sealing sheet 16, the side sealing ring 17, the lower sealing ring 18, the head cover inner cover 111, the head cover outer cover 112, the head cover slot 113, the soft rubber sleeve head end 121, the soft rubber sleeve tail end 122, the soft rubber sleeve sealing surface 123, the soft rubber sleeve hole 124, the main shaft step 131, the main shaft slot 132, the side hole 133, the sealing slot 134, the main shaft hole 135, the main shaft boss 136, the main shaft limit 137, the guide base 151, the suction button base 2, the liquid / gas inlet 21, the negative pressure source interface 22, the positioning groove 23, the suction button seat platform 24, the suction button seat boss 25, and the suction button seat inner wall 26. DETAILED DESCRIPTION

[0025] The application will be described in detail below with reference to the drawings:

[0026] As shown in the drawings: Figures 1-5

[0027] An endoscope suction button 1, comprising a main shaft 13, the main shaft 13 is provided with a main shaft hole 135 which is in communication with the right end face of the main shaft 13, the middle part of the main shaft 13 is provided with a side hole 133 which is in communication with the main shaft hole 135, the side hole 133 is sleeved with a side sealing ring 17, the left end of the main shaft 13 is integrally formed with a main shaft step 131, the main shaft step 131 is sleeved with a head cover 11, the head cover 11 comprises a head cover inner cover 111 and a head cover outer cover 112, the outer wall of the side of the main shaft 13 close to the main shaft step 131 is provided with a main shaft slot 132, the head cover inner cover 111 is provided with a head cover slot 134, the head cover slot 134 is clamped in the main shaft slot 132, so as to realize the fixed connection of the head cover 11 and the main shaft 13.

[0028] The middle part of the main shaft 13 is integrally formed with a main shaft limit 137 and a main shaft boss 136, the main shaft 13 between the head cover inner cover 111 and the main shaft limit 137 is sleeved with a guide 15, the guide 15 comprises a guide base 151, the outer wall of the guide base 151 abuts against the main shaft limit 137, the inner wall of the guide 15 is bonded with a sealing sheet 16, the end of the head cover outer cover 112 is in a straight line with the sealing sheet 16, when the head cover 11 is pressed downward, the end of the head cover outer cover 112 can abut against the sealing sheet 16, so as to form a seal.

[0029] The end of the main shaft 13 away from the head cover 11 is provided with an annular sealing slot 134, the sealing slot 134 is sleeved with a lower sealing ring 18.

[0030] ​The outer sleeve of the guide 15 is sleeved with a soft rubber sleeve 12, in order to ensure that the soft rubber sleeve 12 will not fall off in use, the outer wall of the guide 15 is bonded with the inner wall of the soft rubber sleeve 12, the soft rubber sleeve 12 comprises a soft rubber sleeve head end 121 and a soft rubber sleeve tail end 122, the soft rubber sleeve head end 121 is provided with a soft rubber sleeve hole 124, the diameter of the soft rubber sleeve hole 124 is greater than the outer diameter of the head cover outer cover 112, the bottom of the soft rubber sleeve tail end 122 is bonded with a soft rubber sleeve sealing surface 123; the main shaft 13 is sleeved with a spring 14 on the head cover inner cover 111, one end of the spring 14 is in abutment with the head cover outer cover 112, the other end of the spring 14 is in abutment with the inner wall of the guide 15.

[0031] The use method of the present application is as follows:

[0032] The present application is used in cooperation with the suction button 1 seat, as shown in Figure 4 and 5 The suction button 1 seat comprises a structure liquid / gas inlet 21, a negative pressure source interface 22, a positioning groove 23, a suction button seat platform 24, a suction button seat boss 25 and a suction button seat inner wall 26.

[0033] Before use, the present suction button 1 is inserted into the suction button seat 2, the main shaft boss 136 is inserted into the positioning groove 23 on the suction button seat 2, so that the side hole 133 on the present suction button 1 can be in a straight line with the liquid / gas inlet 21 on the suction button seat 2.

[0034] As shown in Figure 2 , in the natural state, the spring 14 pushes the head cover 11 out, drives the main shaft 13 to move upwards through the head cover clamping groove 134 and the main shaft slot 132, so that the side hole 133 is away from the liquid / gas inlet 21 of the external suction button 1 seat, at this time, the suction passage is blocked.

[0035] As shown in Figure 3 , when the suction button 1 is in the pressed state, the spring 14 is compressed, the head cover 11 pushes the main shaft 13 to move downwards, at this time, the side sealing ring 17 on the main shaft 13 is opposite to the liquid / gas inlet 21, so that the liquid / gas inlet 21 is aligned and communicated with the main shaft hole 135, the suction passage is formed through the main shaft hole 135; after use, the spring 14 rebounds the head cover 11, drives the main shaft 13 to move upwards, so that the side hole 133 is away from the liquid / gas inlet 21 of the suction button 1 seat, in the whole process, the spring 14 provides the product rebound force, and the rebound force is controllable.

[0036] In the use process, the head cover outer cover 112 presses the sealing piece 16, the soft rubber sleeve sealing surface 123 presses the suction button 1 seat, the side sealing ring 17 and the lower sealing ring 18 form a seal with the inner wall of the suction button 1 seat, so that the external air is prevented from being sucked in, and the problem that the suction amount at the liquid / gas inlet 21 is reduced can be avoided.

[0037] In addition, the raw material of the present application can adopt medical plastic and silicone rubber, the product is disposable, does not need to be sterilized, and is cheap, convenient for patients and medical staff to use.

[0038] The above examples are only used to illustrate the technical solutions of the present application but not limit the present application, although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the technical solutions of the present application, which should be covered in the scope of claims of the present application. The technical, shape and structure parts not described in detail in the present application are all known technologies.

Claims

1. An endoscope suction button, characterized in that: The cam is provided with a plurality of holes, the holes being connected to the inner wall of the cam and the outer wall of the cam, and the inner wall of the cam is fixed with the outer cover of the cam.

2. The endoscope suction button according to claim 1, characterized in that: A main shaft slot is provided on the outer wall of the main shaft near the main shaft step, and a head cover clamping slot is provided on the head cover inner cover, and the head cover clamping slot is clamped in the main shaft slot.

3. The endoscope suction button according to claim 2, characterized in that: The inner wall of the guide member is provided with a sealing sheet, and the end of the head cover outer cover and the sealing sheet are in a straight line.

4. The endoscope suction button according to claim 3, characterized in that: A soft rubber sleeve sealing surface is provided at the end of the soft rubber sleeve.

5. The endoscope suction button according to claim 4, characterized in that: An annular sealing groove is provided at one end of the main shaft away from the head cover, and a lower sealing ring is provided on the sealing groove.

6. The endoscope suction button according to claim 5, characterized in that: A side sealing ring is provided on the side hole.

7. The endoscope suction button according to claim 6, characterized in that: The outer wall of the guide member is fixedly connected to the inner wall of the soft rubber sleeve.

8. The endoscope suction button according to any one of claims 1 to 7, characterized in that: A main shaft boss is arranged in the middle of the main shaft.

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