Anti-drop, anti-leak, anti-backflow, fixing and protection device for endoscope

Abstract

The present invention discloses an anti-slip, anti-leak, anti-backflow, fixing and protective device for endoscope, comprising a support cylinder, the outside of the support cylinder is provided with a shrinkable and expandable arc-shaped support, the inside of the support cylinder is provided with a shrinkable and expandable endoscope fixing part, and the two ends of the inside of the support cylinder are provided with elastic sealing parts, and the middle part of the elastic sealing part is provided for the endoscope to pass through and is closely matched with the endoscope. The anti-slip, anti-leak, anti-backflow, fixing and protective device for endoscope of the present invention can prevent the endoscope from being dislodged from the intestine due to the peristalsis of the gastrointestinal tract, ensure the operation efficiency, and also avoid the risk of suffocation caused by the backflow of gastric contents in the digestive tract into the airway, and also avoid the serious abdominal infection caused by the gastrointestinal contents flowing into the outside of the gastrointestinal cavity from the defect of the gastrointestinal wall, which endangers the life safety of the patient, and ensures the smooth progress of the operation.

Description

Technical Field

[0001] The invention relates to the field of medical supplies, and in particular to an anti-dropping, anti-leakage, anti-backflow, fixing and protecting device for an endoscope. Background Art

[0002] At present, there are the following limitations in the use of flexible gastroenteroscopy. During the diagnosis and treatment of the gastrointestinal tract by gastroenteroscopy, due to the peristalsis, looping and spasm of the gastrointestinal tract, the gastroenteroscope is easy to slip out of the gastrointestinal tract, affecting the efficiency of the operation; during the diagnosis and treatment of the upper gastrointestinal tract by gastroscopy under intravenous anesthesia, there is a risk of suffocation caused by the reflux of gastric contents in the upper gastrointestinal tract into the airway; during operations such as natural orifice endoscopic surgery (NOTES) and endoscopic full-thickness resection (EFR), gastrointestinal contents flow from the gastrointestinal wall defects into the outside of the gastrointestinal cavity (thoracic and abdominal cavities), affecting the smooth progress of the operation and causing serious chest or abdominal infections, thus endangering the patient's life. Based on the above reasons, endoscope anti-slip, anti-leakage, anti-reflux, fixation and protection devices can solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide an anti-slip, anti-leakage, anti-backflow, fixation and protection device for an endoscope, which can prevent the endoscope from slipping out of the intestine due to the peristalsis of the gastrointestinal tract, ensure the operation efficiency, and also avoid the risk of suffocation caused by the backflow of gastric contents in the digestive tract into the airway. It can also avoid the serious abdominal infection caused by the gastrointestinal contents flowing into the outside of the gastrointestinal cavity from the defects in the gastrointestinal wall, which endangers the patient's life safety, and ensure the smooth progress of the operation.

[0004] To achieve the above-mentioned purpose, the present invention provides an anti-detachment and anti-leakage device for an endoscope, comprising a supporting cylinder, the outside of the supporting cylinder is provided with a shrinkable and expandable arc-shaped support, the inside of the supporting cylinder is provided with a shrinkable and expandable endoscope fixing portion, and the inner ends of the supporting cylinder are provided with elastic sealing members, and the middle part of the elastic sealing member is for the endoscope to pass through and is tightly fitted with the endoscope.

[0005] As a further improvement of the present invention, the shrinkable and expandable arc-shaped support is a cylindrical balloon.

[0006] As a further improvement of the present invention, the shrinkable and expandable arc-shaped support is a waist-shaped balloon.

[0007] As a further improvement of the present invention, the waist-shaped balloon is an integrated balloon or a split balloon consisting of a middle narrowed portion and expanded portions at both ends, and the expanded portions at both ends are symmetrical on both sides of the middle narrowed portion.

[0008] As a further improvement of the present invention, the elastic sealing member is a single-layer elastic rubber sheet, a hole is opened in the center of the single-layer elastic rubber sheet for the endoscope to pass through and tightly fit with the endoscope, and the hole diameter is smaller than the outer diameter of the endoscope.

[0009] As a further improvement of the present invention, the elastic sealing member is a double-layer elastic rubber sheet, both of which are provided with cracks, and the cracks on the double-layer elastic rubber sheet are cross-staggered.

[0010] As a further improvement of the present invention, the cracks on the double-layer elastic rubber sheet are all I-shaped cracks, and the I-shaped cracks on the double-layer elastic rubber sheet are perpendicular to each other.

[0011] As a further improvement of the present invention, the cracks on the double-layer elastic rubber sheet are all Y-shaped cracks, and the Y-shaped cracks of the double-layer elastic rubber sheet are staggered.

[0012] As a further improvement of the present invention, one end of the support cylinder is further connected to an outer sleeve.

[0013] As a further improvement of the present invention, the outer sleeve is provided with at least one side hole on the tube wall close to the supporting cylinder, and an elastic valve through which the endoscope can pass is fixed at the side hole.

[0014] As a further improvement of the present invention, the elastic valve is a double-layer diaphragm, both of which are provided with cracks, and the cracks on the double-layer diaphragm are cross-staggered.

[0015] As a further improvement of the present invention, the cracks on the double-layer diaphragm are all I-shaped cracks, and the I-shaped cracks of the double-layer diaphragm are perpendicular to each other.

[0016] As a further improvement of the present invention, the cracks on the double-layer diaphragm are all Y-shaped cracks, and the Y-shaped cracks of the double-layer diaphragm are staggered.

[0017] As a further improvement of the present invention, the arc-shaped support and the endoscope fixing part are respectively connected to a ventilation duct. The ventilation duct connected to the endoscope fixing part is fixed along the inner wall of the support cylinder and extends out of one end of the support cylinder. The ventilation duct connected to the arc-shaped support is fixed along the outer wall of the support cylinder and extends out of one end of the support cylinder.

[0018] Compared with the prior art, the endoscope anti-dropout and anti-leakage device of the present invention has the following beneficial effects:

[0019] (1) The support cylinder of the device has an expandable and contractible endoscope fixing portion inside. When expanded, it can be tightly fixed to the endoscope body, so that the device can be inserted into a suitable part of the digestive tract lumen through the gastrointestinal endoscope during gastrointestinal endoscopic diagnosis and treatment. When it contracts, the device is separated from the endoscope body, so that the gastrointestinal endoscope can move through the device, which can prevent the gastrointestinal endoscope from falling out of the intestine due to gastrointestinal peristalsis, thereby ensuring the efficiency of endoscopic operation.

[0020] The elastic sealing parts at both ends of the supporting cylinder allow the endoscope to pass through and fit tightly with the endoscope, so that the gastroenteroscope is not easy to fall out of the gastrointestinal cavity, and plays a role in fixing the endoscope body well.

[0021] (2) After the device is placed in a suitable working position in the above manner, the shrinkable and expandable arc-shaped columnar support on the outside of the support cylinder of the device can be stuck on the inner wall of the digestive tract when expanded, and the elastic sealing parts at both ends of the support cylinder can allow the endoscope to pass through and fit tightly with the endoscope, so that the gastroenteroscope is not easy to fall out of the gastrointestinal cavity when moving, and plays a good role in fixing the endoscope body; at the same time, the arc-shaped support on the outside of the support cylinder plays a blocking role after expansion, and also prevents the backflow of digestive tract contents, such as gastric juice backflow into the airway causing suffocation.

[0022] (3) The device supports a unique design of a retractable and inflatable waist-shaped balloon on the outside of the tube. For endoscopic surgeries involving gastrointestinal wall defects, such as natural orifice endoscopic surgery (NOTES) and endoscopic full-thickness resection (EFR), the inflated waist-shaped balloon can block the gastrointestinal wall defects, such as perforations, to prevent gastrointestinal contents, especially feces, from flowing out of the gastrointestinal lumen, thereby avoiding serious infection, ensuring the patient's life safety, and ensuring the smooth progress of the operation.

[0023] (4) The proximal end of the supporting cylinder of the device is provided with a relatively flexible outer sleeve, through which the gastroenteroscope is passed, thereby protecting the body of the gastroenteroscope and reducing the contamination of the body of the gastroenteroscope by gastrointestinal contents, such as feces.

[0024] (5) An elastic valve is provided near the support cylinder of the outer sleeve, which allows the gastroenteroscope to pass through the outer sleeve to perform relevant endoscopic operations, such as observing whether the arc-shaped support outside the support cylinder is fixed in a suitable position, etc., and at the same time prevents the gastrointestinal contents from penetrating into the outer sleeve.

[0025] The present invention will become more apparent from the following description taken in conjunction with the accompanying drawings, which are used to illustrate embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The present invention is a schematic diagram of an exploded view of a first embodiment of an anti-dropping, anti-leakage, anti-backflow, fixing and protecting device for an endoscope.

[0027] Figure 2 The present invention is a combined schematic diagram of a first embodiment of an anti-dropping, anti-leakage, anti-backflow, fixing and protecting device for an endoscope.

[0028] Figure 3 The present invention is a schematic diagram of an exploded view of a second embodiment of an anti-dropping, anti-leakage, anti-backflow, fixing and protecting device for an endoscope.

[0029] Figure 4 The present invention is a combined schematic diagram of a second embodiment of an anti-dropping, anti-leakage, anti-backflow, fixing and protecting device for an endoscope.

[0030] Figure 5 The present invention is a schematic diagram of the exploded view of the third embodiment of the anti-dropping, anti-leakage, anti-backflow, fixing and protection device for endoscope.

[0031] Figure 6 The present invention is a combined schematic diagram of the third embodiment of the anti-dropping, anti-leakage, anti-backflow, fixing and protecting device for endoscope.

[0032] Figure 7 The present invention is a schematic diagram of the combination of a fourth embodiment of an anti-dropping, anti-leakage, anti-backflow, fixing and protecting device for an endoscope.

[0033] Figure 8 for Figure 7 Schematic diagram of the structure of the outer sleeve.

[0034] Fig. 9 Schematic diagram of a double-layer elastic rubber sheet Figure 1 .

[0035] Fig.10 Schematic diagram of a double-layer elastic rubber sheet Figure 2 .

[0036] Fig.11 Schematic diagram of the sixth embodiment of the device for preventing slippage, leakage, backflow, fixation and protection for endoscope Figure 1 , which shows an integrated balloon structure.

[0037] Fig.12 A schematic diagram of the combination of the sixth embodiment of the anti-drop, anti-leak, anti-backflow, fixing and protection device for endoscopes Figure 1 , which shows an integrated balloon structure.

[0038] Fig.13 Schematic diagram of the sixth embodiment of the device for preventing slippage, leakage, backflow, fixation and protection for endoscope Figure 2 , which shows a split balloon structure.

[0039] Fig.14 Schematic diagram of the sixth embodiment of the device for preventing slippage, leakage, backflow, fixation and protection for endoscope Figure 2 , which shows a split balloon structure.

[0040] Fig.15 The present invention is a combined schematic diagram of the seventh embodiment of the anti-dropping, anti-leakage, anti-backflow, fixing and protecting device for endoscope.

[0041] Fig.16 The present invention is a usage status diagram of the first embodiment of the anti-dropping, anti-leakage, anti-backflow, fixing and protection device for endoscope.

[0042] Fig.17 The present invention is a usage status diagram of the seventh embodiment of the anti-dropping, anti-leakage, anti-backflow, fixing and protection device for endoscope.

[0043] Description of the accompanying drawings for the specific implementation:

[0044] Support cylinder 1, arc-shaped support 2, middle narrowed portion 2a, expanded portion 2b, endoscope fixing portion 3, elastic sealing member 4, hole 41, ventilation pipe 5, outer sleeve 6, side hole 6a, elastic valve 7. DETAILED DESCRIPTION

[0045] Embodiments of the present invention will now be described with reference to the accompanying drawings, wherein like reference numerals represent like elements throughout the several views.

[0046] Embodiment 1

[0047] Please refer to Figure 1-2 and Fig.16 The endoscope anti-dropping, anti-leakage, anti-backflow, fixing and protection device comprises a supporting cylinder 1, the outside of the supporting cylinder 1 is provided with a shrinkable and expandable arc-shaped support 2, the inside of the supporting cylinder 1 is provided with a shrinkable and expandable endoscope fixing part 3, and the two ends of the inside of the supporting cylinder 1 are provided with elastic sealing members 4, the endoscope fixing part 3 is located in the middle of the elastic sealing members 4 at the two ends of the supporting cylinder 1, and the middle part of the elastic sealing member 4 is for the endoscope to pass through and is tightly fitted with the endoscope.

[0048] The support cylinder 1 is a rubber tube body with certain elasticity and hardness, and its edges are rounded and smooth to reduce the risk of scratching the mucous membrane.

[0049] The shrinkable and expandable arc-shaped support 2 is a cylindrical balloon, which is wrapped and fixed on the outer wall of the support cylinder 1 and sealed to each other. The endoscope fixing part 3 is also a cylindrical balloon, and the outer wall of the endoscope fixing part 3 is fixed on the inner wall of the support cylinder 1 and sealed to each other.

[0050] The elastic seal 4 is a single-layer elastic rubber sheet, and a hole 41 is provided in the center of the single-layer elastic rubber sheet for the endoscope to pass through and fits tightly with the endoscope. The hole 41 in the middle of the single-layer elastic rubber sheet 4 for the endoscope to pass through has a diameter smaller than the outer diameter of the endoscope, so that the elastic seal 4 can be tightly wrapped around the outer wall of the endoscope, and the endoscope can also pass freely.

[0051] The arc-shaped support 2 and the endoscope fixing part 3 are respectively connected to a ventilation duct 5. The ventilation duct 5 connected to the endoscope fixing part 3 is fixed along the inner wall of the support cylinder 1 and extends out of one end of the support cylinder 1. The ventilation duct 5 connected to the arc-shaped support 2 is fixed along the outer wall of the support cylinder 1 and extends out of one end of the support cylinder 1.

[0052] The endoscope anti-drop, anti-leak, anti-backflow, fixation and protection device of this embodiment can be used to fix a gastroenteroscopy, and the use steps are as follows:

[0053] The first step is to insert the endoscope 100 into the support cylinder 1 and the endoscope fixing part 3 when in use, and first inflate the endoscope fixing part 3 inside the support cylinder 1, so that when it expands, it can be tightly sheathed on the front end of the endoscope body, so that the device can be placed into a suitable digestive tract lumen 200 through the endoscope during gastrointestinal endoscopic diagnosis and treatment. During the placement of the device, the arc-shaped support 2 outside the support cylinder 1 needs to be deflated to shrink and deflate.

[0054] The second step is to place the device in a suitable position by the above method, and then inject air to expand the "arc-shaped support 2 outside the support cylinder 1". When it expands, it is fixed to the inner wall of the digestive tract lumen. Next, the endoscope fixing part 3 inside the support cylinder 1 is evacuated to shrink and deflate, so that the endoscope fixing part 3 is separated from the endoscope, and the endoscope can move independently to facilitate endoscopic operation. Since the elastic sealing parts 4 at both ends of the support cylinder 1 can allow the endoscope to pass through and fit tightly with the endoscope, the endoscope is not easy to fall out of the gastrointestinal cavity, which plays a role in fixing the mirror body well. At the same time, the arc-shaped support 2 outside the support cylinder 1 plays a blocking role after expansion, and also prevents the backflow of digestive tract contents, such as gastric juice backflow into the airway to cause suffocation.

[0055] In the third step, after the device is fixed to the lumen of the digestive tract, the endoscope can freely shuttle "inside and outside the device" to perform endoscopic surgery.

[0056] In the fourth step, at the end of the endoscopic surgery, air is injected into the endoscope fixing part 3 inside the support cylinder 1, so that the endoscope fixing part 3 is re-fixed to the endoscope body, and then the air in the arc-shaped support 2 outside the support cylinder 1 is evacuated to shrink and deflate it. Finally, the device is removed from the gastrointestinal lumen along with the endoscope.

[0057] Embodiment 2

[0058] Please refer to Figure 3-4 The difference between this embodiment and the above-mentioned embodiment 1 is that the elastic sealing member 4 is a double-layer elastic rubber sheet, and cracks are formed on the double-layer elastic rubber sheet, and the cracks on the double-layer elastic rubber sheet are cross-displaced. The cross-displaced form of the double-layer elastic rubber sheet is that the cracks on the double-layer elastic rubber sheet are all straight-line cracks, and the straight-line cracks on the double-layer elastic rubber sheet are perpendicular to each other. The double-layer elastic rubber sheet of this embodiment can also be tightly wrapped around the outer wall of the endoscope, and the endoscope can also shuttle freely.

[0059] Embodiment 3

[0060] Please refer to Figure 5-6The difference between this embodiment and the first embodiment is that the cross-dislocation form of the double-layer elastic rubber sheet is that the cracks on the double-layer elastic rubber sheet are all Y-shaped cracks, and the Y-shaped cracks of the double-layer elastic rubber sheet are dislocated. The double-layer elastic rubber sheet of this embodiment can also be tightly wrapped around the outer wall of the endoscope, and the endoscope can also shuttle freely.

[0061] Embodiment 4

[0062] Please refer to Figure 7-9 , the difference between this embodiment and the above-mentioned embodiment 1 is only that: one end of the support cylinder 1 is also connected to an outer sleeve 6, the support cylinder 1 and the outer sleeve 6 are integrally connected, and the two ventilation pipes 5 are shaped along the inner and outer walls of the outer sleeve 6. The outer sleeve 6 is also a rubber tube body, which has a certain elasticity and is relatively soft, reducing the risk of scratching the mucosa. The outer sleeve 6 is provided with a side hole 6a on the tube wall close to the support cylinder 1. The side hole 6a can be one or two. When there are two side holes 6a, the positions of the two side holes 6a are relative. An elastic valve 7 through which an endoscope can pass is fixed at the side hole 6a. The elastic valve 7 is a double-layer diaphragm, and cracks are provided on the double-layer diaphragm, and the cracks on the double-layer diaphragm are cross-displaced. The form of the cross-displacement of the double-layer diaphragm is that the cracks on the double-layer diaphragm are all straight-line cracks, and the straight-line cracks of the double-layer diaphragm are perpendicular to each other.

[0063] The endoscope anti-drop, anti-leak, anti-backflow, fixation and protection device of this embodiment can be used to fix a gastroenteroscopy, and the use steps are as follows:

[0064] The first step is to insert the endoscope 100 into the outer sleeve 6, the support cylinder 1 and the endoscope fixing part 3 when in use. First, the endoscope fixing part 3 inside the support cylinder 1 is inflated. When expanded, it can be tightly sheathed on the front end of the gastroenteroscope body, so that the device can be placed into a suitable digestive tract lumen 200 through the gastroenteroscope during gastroenteroscope diagnosis and treatment. During the placement of the device, the arc-shaped support 2 outside the support cylinder 1 needs to be deflated to shrink and deflate.

[0065] The second step is to place the device in a suitable position by the above method, and then inject air to expand the "arc-shaped support 2 outside the support cylinder 1". When it expands, it is fixed to the inner wall of the digestive tract lumen. Next, the endoscope fixing part 3 inside the support cylinder 1 is evacuated to shrink and deflate, so that the endoscope fixing part 3 is separated from the gastroenteroscope, and the gastroenteroscope can move independently to facilitate the operation of the gastroenteroscope. Since the elastic sealing parts 4 at both ends of the support cylinder 1 can allow the endoscope to pass through and fit tightly with the endoscope, the gastroenteroscope is not easy to fall out of the gastrointestinal cavity, which plays a role in fixing the mirror body well. At the same time, the arc-shaped support 2 outside the support cylinder 1 plays a blocking role after expansion, and also prevents the backflow of the contents of the digestive tract, such as the backflow of gastric juice into the airway to cause suffocation.

[0066] In the third step, after the device is fixed to the lumen of the digestive tract, the gastroenteroscope can freely shuttle "inside and outside the device" to perform endoscopic surgery. During the operation of the endoscopic surgery, the gastroenteroscope can also pass through the elastic valve 7 of the outer sleeve of the device to pass out of the outer sleeve 6 to perform related endoscopic operations, such as observing whether the arc support 2 outside the support cylinder 1 is fixed in a suitable position, etc.

[0067] In the fourth step, at the end of the endoscopic surgery, air is injected into the endoscope fixing part 3 inside the support cylinder 1, so that the endoscope fixing part 3 is re-fixed to the gastrointestinal endoscope body, and then the air in the arc-shaped support 2 outside the support cylinder 1 is evacuated to shrink and deflate it. Finally, the device is removed from the gastrointestinal lumen along with the gastrointestinal endoscope.

[0068] The single-layer elastic rubber sheet in this embodiment may also be replaced by the double-layer elastic rubber sheet in the above-mentioned second and third embodiments.

[0069] Embodiment 5

[0070] Please refer to Fig.10 The difference between this embodiment and the fourth embodiment is that the cross-dislocation of the double-layer diaphragms is in the form of Y-shaped cracks on the double-layer diaphragms, and the Y-shaped cracks of the double-layer diaphragms are dislocated.

[0071] Embodiment 6

[0072] Please refer to Figure 11-14 The difference between this embodiment and the first embodiment is that the shrinkable and expandable arc-shaped support 2 is a waist-shaped balloon. The waist-shaped balloon is an integrated balloon or a split balloon consisting of a middle narrowing portion 2a and two end bulging portions 2b, and the two end bulging portions 2b are symmetrical on both sides of the middle narrowing portion (such as Figure 11-12 The split balloons are all connected to the same ventilation pipe 5 and the ventilation pipe 5 runs along the outer wall of the support cylinder 1 and is fixed on the outer wall of the support cylinder 1 (as shown in FIG. Figure 13-14 shown).

[0073] The single-layer elastic rubber sheet in this embodiment may also be replaced by the double-layer elastic rubber sheet in the above-mentioned second and third embodiments.

[0074] The endoscope anti-drop, anti-leak, anti-backflow, fixation and protection device of this embodiment can be used to fix a gastroenteroscopy, and has a unique usage for the "waist-shaped support outside the support cylinder 1", for example, in natural orifice endoscopic surgery (NOTES) and endoscopic full-thickness resection (EFR) and other surgical procedures, the use steps are as follows:

[0075] The first step is to insert the endoscope 100 into the support cylinder 1 and the endoscope fixing part 3 when in use, and first inflate the endoscope fixing part 3 inside the support cylinder 1, so that when it expands, it can be tightly sheathed on the front end of the gastroenteroscope body, so that the device can be placed into a suitable digestive tract lumen 200 through the gastroenteroscope during gastroenteroscope diagnosis and treatment. During the placement of the device, the arc-shaped support 2 outside the support cylinder 1 needs to be deflated to shrink and deflate.

[0076] The second step is to place the device in a suitable position by the above method, and then inject air to expand the "arc-shaped support 2 outside the support cylinder 1". When it expands, it blocks the defective part of the wall of the digestive tract, such as the perforation, and plays a blocking role to prevent the contents of the gastrointestinal tract, especially feces, from flowing out of the digestive tract lumen to avoid serious infection. Next, the endoscope fixing part 3 inside the support cylinder 1 is evacuated to shrink and deflate, so that the endoscope fixing part 3 is separated from the gastroenteroscope, and the gastroenteroscope can move independently to facilitate the operation of the gastroenteroscope. Since the elastic sealing parts 4 at both ends of the support cylinder 1 can allow the endoscope to pass through and fit tightly with the endoscope, the gastroenteroscope is not easy to fall out of the gastrointestinal cavity, which plays a good role in fixing the mirror body.

[0077] In the third step, after the device is blocked in the defect of the digestive tract wall, the gastroenteroscope can freely shuttle in and out of the device to perform endoscopic surgery.

[0078] In the fourth step, at the end of the endoscopic surgery, air is injected into the endoscope fixing part 3 inside the support cylinder 1, so that the endoscope fixing part 3 is re-fixed to the gastrointestinal endoscope body, and then the air in the arc-shaped support 2 outside the support cylinder 1 is evacuated to shrink and deflate it. Finally, the device is removed from the gastrointestinal lumen along with the gastrointestinal endoscope.

[0079] Embodiment 7

[0080] Please refer to Fig. 9 , Fig.15 and Fig.17 The difference between this embodiment and the above-mentioned embodiment 6 is that: one end of the support cylinder 1 is also connected to an outer sleeve 6, the support cylinder 1 and the outer sleeve 6 are connected as one piece, and the ventilation pipe 5 connected to the endoscope fixing part 3 and the arc support 2 runs along the inner and outer walls of the outer sleeve 6 respectively. The outer sleeve 6 has a side hole 6a on the tube wall close to the support cylinder 1. The side hole 6a can be one or two. When there are two side holes 6a, the positions of the two side holes 6a are opposite. An elastic valve 7 through which the endoscope can pass is fixed at the side hole 6a. The elastic valve 7 is a double-layer diaphragm, which is connected to the outer sleeve 6. Fig. 9The double-layer elastic rubber sheet shown in the figure has the same structure, and cracks are opened on the double-layer diaphragm, and the cracks on the double-layer diaphragm are cross-displaced. The cross-displacement of the double-layer diaphragm is in the form of a straight-line crack, and the straight-line cracks of the double-layer diaphragm are perpendicular to each other. The perpendicular straight-line cracks can allow the endoscope to pass through and prevent leakage.

[0081] The endoscope anti-drop, anti-leak, anti-backflow, fixation and protection device of this embodiment can be used to fix a gastroenteroscopy, and has a unique usage for the "waist-shaped support outside the support cylinder 1", for example, in natural orifice endoscopic surgery (NOTES) and endoscopic full-thickness resection (EFR) and other surgical procedures, the use steps are as follows:

[0082] The first step is to insert the endoscope 100 into the outer sleeve 6, the support cylinder 1 and the endoscope fixing part 3 when using it. First, the endoscope fixing part 3 inside the support cylinder 1 is inflated. When it expands, it can be tightly sheathed on the front end of the gastroenteroscope body, so that the device can be placed in a suitable digestive tract lumen through the gastroenteroscope during gastroenteroscope diagnosis and treatment. During the placement of the device, the arc-shaped support 2 outside the support cylinder 1 needs to be deflated to shrink and deflate.

[0083] The second step is to place the device in a suitable position by the above method, and then inject air to expand the "arc-shaped support 2 outside the support cylinder 1". When it expands, it blocks the defective part of the wall of the digestive tract lumen 200, such as the perforation, to play a blocking role, preventing the gastrointestinal contents, especially feces, from flowing out of the digestive tract lumen to avoid serious infection. Next, the endoscope fixing part 3 inside the support cylinder 1 is evacuated to shrink and deflate, so that the endoscope fixing part 3 is separated from the gastroenteroscope, and the gastroenteroscope can move independently to facilitate the operation of the gastroenteroscope. Since the elastic sealing parts 4 at both ends of the support cylinder 1 can allow the endoscope to pass through and fit tightly with the endoscope, the gastroenteroscope is not easy to fall out of the gastrointestinal cavity, which plays a good role in fixing the mirror body.

[0084] In the third step, after the device is fixed to the lumen of the digestive tract, the gastroenteroscope can freely shuttle "inside and outside the device" to perform endoscopic surgery. During the operation of the endoscopic surgery, the gastroenteroscope can also pass through the elastic valve 7 of the outer sleeve of the device to pass out of the outer sleeve 6 to perform related endoscopic operations, such as observing whether the arc support 2 outside the support cylinder 1 is fixed in a suitable position, etc.

[0085] In the fourth step, at the end of the endoscopic surgery, air is injected into the endoscope fixing part 3 inside the support cylinder 1, so that the endoscope fixing part 3 is re-fixed to the gastrointestinal endoscope body, and then the air in the arc-shaped support 2 outside the support cylinder 1 is evacuated to shrink and deflate it. Finally, the device is removed from the gastrointestinal lumen along with the gastrointestinal endoscope.

[0086] Embodiment 8

[0087] Please refer to Fig.10 The difference between this embodiment and the fourth embodiment is that the double-layer diaphragm is cross-displaced in the form of Y-shaped cracks, and the Y-shaped cracks of the double-layer diaphragm are displaced. The displaced Y-shaped cracks can allow the endoscope to pass through and prevent leakage.

[0088] The present invention has been described above in conjunction with the best embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. An anti-drop, anti-leak, anti-backflow, fixing and protective device for endoscope, characterized in that: include: A support cylinder, the outside of the support cylinder is provided with a shrinkable and expandable arc-shaped support, the inside of the support cylinder is provided with a shrinkable and expandable endoscope fixing part, both ends of the inside of the support cylinder are provided with elastic sealing parts, the middle part of the elastic sealing part is for the endoscope to pass through and is tightly fitted with the endoscope, the shrinkable and expandable arc-shaped support is a cylindrical balloon, or the shrinkable and expandable arc-shaped support is a waist-shaped balloon, the proximal end of the support cylinder is also connected to an outer sleeve, the outer sleeve is provided with at least one side hole on the tube wall close to the support cylinder, and an elastic valve through which the endoscope can pass is fixed at the side hole, the elastic sealing part is a double-layer elastic rubber sheet, the double-layer elastic rubber sheet is provided with cracks, and the cracks on the double-layer elastic rubber sheet are cross-staggered, the arc-shaped support and the endoscope fixing part are respectively connected with a ventilation pipe, the ventilation pipe connected to the endoscope fixing part is fixed along the inner wall of the support cylinder and extends out of one end of the support cylinder, and the ventilation pipe connected to the arc support is fixed along the outer wall of the support cylinder and extends out of one end of the support cylinder.

2. The endoscope anti-drop, anti-leak, anti-backflow, fixing and protective device as claimed in claim 1, characterized in that: The waist-shaped balloon is an integrated balloon or a split balloon consisting of a middle narrowed portion and two end bulging portions, and the two end bulging portions are symmetrical on both sides of the middle narrowed portion.

3. The endoscope anti-drop, anti-leak, anti-backflow, fixing and protective device as claimed in claim 1, characterized in that: The elastic sealing member is a single-layer elastic rubber sheet, the center of which is provided with a hole for the endoscope to pass through and which fits tightly with the endoscope, and the diameter of the hole is smaller than the outer diameter of the endoscope.

4. The endoscope anti-drop, anti-leak, anti-backflow, fixing and protective device as claimed in claim 1, characterized in that: The cracks on the double-layer elastic rubber sheet are all I-shaped cracks, and the I-shaped cracks on the double-layer elastic rubber sheet are perpendicular to each other.

5. The endoscope anti-drop, anti-leak, anti-backflow, fixing and protective device as claimed in claim 1, characterized in that: The cracks on the double-layer elastic rubber sheet are all Y-shaped cracks, and the Y-shaped cracks of the double-layer elastic rubber sheet are staggered.

6. The endoscope anti-drop, anti-leak, anti-backflow, fixing and protective device as claimed in claim 1, characterized in that: The elastic valve is a double-layer diaphragm, both of which are provided with cracks, and the cracks on the double-layer diaphragm are cross-displaced.

7. The endoscope anti-drop, anti-leak, anti-backflow, fixing and protective device according to claim 6, characterized in that: The cracks on the double-layer diaphragm are all I-shaped cracks, and the I-shaped cracks on the double-layer diaphragm are perpendicular to each other.

8. The endoscope anti-drop, anti-leak, anti-backflow, fixing and protective device according to claim 6, characterized in that: The cracks on the double-layer diaphragm are all Y-shaped cracks, and the Y-shaped cracks of the double-layer diaphragm are staggered.

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