Disposable soft endoscope outer sleeve and endoscope system

Abstract

The disposable soft endoscope outer sleeve comprises a soft catheter, an endoscope insertion cavity and a first balloon ventilation cavity are formed in the soft catheter, the two ends of the endoscope insertion cavity are open, an endoscope can move back and forth in the endoscope insertion cavity, the two ends of the first balloon ventilation cavity are closed, and the first balloon ventilation cavity is communicated with the endoscope insertion cavity. The first balloon ventilation cavity is provided with a first valve port and a first balloon air outlet. The first balloon is arranged outside the soft catheter in a sleeving manner, and the air outlet of the first balloon is surrounded by the first balloon; the guide interface is connected with one end of the flexible catheter, and the endoscope can be inserted into the endoscope insertion cavity through the guide interface; and the first three-way valve is connected with the first valve port.

Description

Technical Field

[0001] The invention relates to the technical field of endoscopes, and in particular to a disposable soft endoscope outer sleeve and an endoscope system. Background Art

[0002] Esophageal and gastric varicose bleeding is an acute and critical disease that threatens people's health, especially in China. In recent years, endoscopic interventional therapy has greatly improved the success rate of varicose bleeding treatment, and hemostasis is mainly based on medical treatment. During the operation, a sclerosant or tissue glue is injected into the varicose veins through an endoscope to form a thrombus to block the bleeding blood vessels. However, sclerosant or tissue glue injection therapy can cause venous reflux, and there is a risk of corresponding ectopic embolism such as pulmonary embolism. In addition, blood and gastric juice may reflux into the esophagus and then enter the trachea, causing secondary medical risks. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a disposable soft endoscope outer sleeve and an endoscope system, which can effectively prevent the backflow of blood or other liquids.

[0004] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0005] A disposable soft endoscope outer sleeve comprises: a soft catheter, an endoscope insertion cavity and a first balloon ventilation cavity are formed inside the soft catheter, the two ends of the endoscope insertion cavity are open and can allow the endoscope to move forward and backward therein, the two ends of the first balloon ventilation cavity are closed, and the first balloon ventilation cavity is respectively provided with a first valve port and a first balloon air outlet; a first balloon, which is sleeved on the outside of the soft catheter and surrounds the first balloon air outlet therein; a guide interface, which is connected to one end of the soft catheter, and the endoscope can be inserted into the endoscope insertion cavity through the guide interface; a first three-way valve, which is connected to the first valve port.

[0006] Preferably, a second balloon ventilation cavity is formed inside the soft catheter, both ends of the second balloon cavity are closed, and the second balloon ventilation cavity is respectively provided with a second valve port and a second balloon air outlet; the disposable soft endoscope outer sleeve also includes a second balloon and a second three-way valve, the second balloon is sleeved on the outside of the soft sleeve and surrounds the second balloon air outlet therein; the second three-way valve is connected to the second valve port.

[0007] Preferably, the first balloon ventilation cavity and the second balloon ventilation cavity are respectively arranged on both sides of the endoscope insertion cavity.

[0008] Preferably, the first three-way valve is connected to the first valve port via a first balloon joint, and the second three-way valve is connected to the second valve port via a second balloon joint.

[0009] Preferably, the soft catheter, the first balloon joint, the second balloon joint and the guide interface are all formed by injection molding of polymer materials.

[0010] Preferably, the first balloon joint and the second balloon joint are respectively bonded to the first valve port and the second valve port by glue; the first balloon and the second balloon are respectively bonded by glue to be sleeved on the outside of the soft catheter.

[0011] Preferably, it also includes a transparent cap, which is sleeved on the other end of the soft catheter.

[0012] Preferably, the transparent cap is formed by injection molding of a polymer material.

[0013] Preferably, the soft catheter, the guide interface and the transparent cap are all bonded with glue.

[0014] In order to achieve the above-mentioned object of the invention, the present invention also provides the following technical solutions:

[0015] An endoscope system comprises an endoscope and the disposable soft endoscope outer sleeve mentioned above. The endoscope can be inserted into the soft catheter of the disposable soft endoscope outer sleeve and drive the disposable soft endoscope outer sleeve into the human body.

[0016] The disposable soft endoscope outer sleeve provided by the present invention can be used with an endoscope, inserted into the human body with the endoscope, and can be conveniently removed from the outside of the endoscope after diagnosis and treatment. The disposable soft endoscope outer sleeve combines a multi-lumen soft catheter with a balloon, so that the balloon can prevent blood or other liquids such as gastric juice from flowing back after being inflated. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 Schematic diagram of the overall cross-sectional structure of a disposable flexible endoscope outer sleeve in an embodiment of the present invention.

[0019] Figure 2 The figure is a schematic diagram of the cross-sectional structure of the outer sleeve of a disposable flexible endoscope outer sleeve in an embodiment of the present invention.

[0020] Figure 3 Schematic diagram of a three-way valve of a disposable flexible endoscope outer cannula in an embodiment of the present invention.

[0021] Figure 4Schematic diagram of a balloon of a disposable soft endoscope outer sleeve in an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further specifically described below by examples and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation of the present invention.

[0023] In addition, in the detailed description below, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments may be implemented without these specific details. In other cases, known structures and devices are embodied in a schematic manner to simplify the accompanying drawings.

[0024] like Figures 1 to 4 As shown, the disposable soft endoscope outer sleeve 100 of the embodiment of the present invention can be sleeved on the outside of the insertion part of the endoscope. The disposable soft endoscope outer sleeve 100 includes a soft catheter 110, a first balloon 120, a guide interface 130 and a first three-way valve 140.

[0025] The soft catheter 110 has an endoscope insertion cavity 111 and a first balloon ventilation cavity 112 formed therein. Both ends of the endoscope insertion cavity 111 are open and can allow the endoscope to move forward and backward therein, that is, the endoscope can be inserted from one end opening of the endoscope insertion cavity 111 and moved to extend from the other end opening. After the endoscope extends from the endoscope insertion cavity 111, diagnostic and treatment operations can be performed inside the human body. The soft catheter 110 as a whole is a structure that is sleeved on the outside of the endoscope, especially sleeved on the outside of the insertion part of the endoscope. After sleeved, the soft catheter 110 or the disposable soft endoscope outer sleeve 100 of the embodiment of the present invention can enter the human body as the endoscope is inserted into the human body.

[0026] The first balloon vent cavity 112 is different from the soft catheter 120 in that both ends are closed and are respectively provided with a first valve port 1121 and a first balloon outlet port 1122. That is, the first balloon vent cavity 112 is provided with two openings as a whole. The first opening is the first valve port 1121, which can be connected to the first three-way valve 140 and can receive the gas injected through the first three-way valve 140 after the connection; the second opening is the first balloon outlet port 1122, which is provided inside the first balloon 120 and the injected gas can fill the first balloon 120 through the outlet port to make it bulge.

[0027] The first balloon 120 is made of a polymer material and can be inflated under gas pressure to swell. The first balloon 120 is sleeved on the outside of the soft catheter 120 and surrounds the first balloon outlet 1122 therein.

[0028] The guide interface 130 is connected to one end of the soft catheter 120 , and the endoscope can be inserted into the endoscope insertion cavity through the guide interface, that is, the guide interface 130 can play a guiding role in the insertion of the endoscope.

[0029] The first three-way valve 140 is connected to the first valve port 1121 . After the connection, an external gas injection device can inject gas into the interior of the first balloon 120 through the three-way valve.

[0030] In some preferred embodiments, the valve port and the balloon outlet port can be formed by physically opening an incision in the wall of the soft catheter 120 .

[0031] In some preferred embodiments, a second balloon ventilation cavity 113 is further formed inside the soft catheter 110. The second balloon ventilation cavity 113 is the same as the first balloon ventilation cavity 112, and is closed at both ends as a whole, and is respectively provided with a second valve port 1131 and a second balloon air outlet 1132. The functions of the second valve port 1131 and the second balloon air outlet 1132 are the same as those of the first valve port 1121 and the first balloon air outlet 1122. That is, the second balloon ventilation cavity 113 is provided with two openings as a whole, the first opening is the second valve port 1131, which can be connected to the second three-way valve 160, and after connection, it can receive the gas injected through the second three-way valve 160; the second opening is the second balloon air outlet 1132, which is provided inside the second balloon 150, and the injected gas can fill the second balloon 150 through the air outlet to bulge.

[0032] Correspondingly, the disposable soft endoscope outer sleeve further includes a second balloon 150 and a second three-way valve 160 . The second balloon 150 is sleeved on the outside of the soft sleeve 110 and surrounds the second balloon outlet 1132 . The second three-way valve 160 is connected to the second valve port 1131 .

[0033] In some preferred embodiments, the first balloon ventilation cavity 112 and the second balloon ventilation cavity 113 are respectively disposed on both sides of the endoscope insertion cavity 111 .

[0034] In some preferred embodiments, the first balloon 120 and the second balloon 150 are both made of polymer materials.

[0035] In some preferred embodiments, the first three-way valve 140 is connected to the first valve port 1121 via a first balloon joint 141 , and the second three-way valve 160 is connected to the second valve port 1131 via a second balloon joint 161 .

[0036] In some more preferred embodiments, the soft catheter 120 , the first balloon joint 141 , the second balloon joint 161 , and the guide interface 130 are all made of injection-molded polymer materials.

[0037] In some preferred embodiments, the first balloon joint 141 and the second balloon joint 161 are respectively bonded with the first valve port 1121 and the second valve port 1131 by glue. The first balloon 120 and the second balloon 150 are bonded with glue to be sleeved on the outside of the soft catheter 120.

[0038] In some preferred embodiments, the disposable soft endoscope outer sleeve 100 further includes a transparent cap 170, which is sleeved on the other end of the soft catheter 110, that is, the two ends of the soft catheter 110 are respectively connected to the guide interface 130 and the transparent cap 170. As an example, the transparent cap 170 is made of polymer material injection molding.

[0039] In some preferred embodiments, the soft catheter 110, the guide interface 130 and the transparent cap are all bonded with glue.

[0040] The embodiment of the present invention further provides an endoscope system, which includes an endoscope and the aforementioned disposable soft endoscope outer tube 100. The endoscope can be inserted into the soft catheter 110 of the disposable soft endoscope outer tube 100, and drive the disposable soft endoscope outer tube 100 into the human body.

[0041] The disposable soft endoscope outer sleeve provided by the present invention can be used with an endoscope, inserted into the human body with the endoscope, and can be conveniently removed from the outside of the endoscope after diagnosis and treatment. The disposable soft endoscope outer sleeve combines a multi-lumen soft catheter with a balloon, so that the balloon can prevent blood or other liquids such as gastric juice from flowing back after being inflated.

[0042] When inflated, the balloon can swell to reduce venous return blood flow, thereby reducing complications of ectopic embolism. As the balloon is inflated, it can compress the proximal blood vessels, making the corresponding filling of the distal blood vessels more obvious, facilitating more accurate intravenous injection. In addition, when blood and gastric juice in the stomach reflux into the esophagus, the compression of a single or double balloon can effectively block the esophagus, preventing liquid from entering the trachea and causing secondary medical risks to the patient.

[0043] Those skilled in the art can understand that the embodiments described above are exemplary and can be improved by those skilled in the art. The structures described in various embodiments can be freely combined without causing conflicts in structure or principle.

[0044] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to exemplify the preferred implementations of the present invention and should not be construed as limiting the present invention.

[0045] Although some embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the present general inventive concept, the scope of which is defined by the claims and their equivalents.

[0046] It should be noted that the word "comprising" does not exclude other elements or steps, and the word "one" or "an" does not exclude a plurality; "upper", "lower", "left", "right", "front", "rear", "top", "bottom" are only used to indicate the orientation of the components in the illustrated structure, rather than to limit their absolute orientation; "first" and "second" are used to distinguish the names of different components rather than to sort or indicate importance or primary and secondary distinction. In addition, any element number in the claims should not be understood as limiting the scope of the present disclosure.

Claims

1. A disposable soft endoscope outer sleeve, characterized in that include: A soft catheter, wherein an endoscope insertion cavity and a first balloon ventilation cavity are formed inside the catheter, wherein both ends of the endoscope insertion cavity are open and the endoscope can be moved forward and backward therein, and both ends of the first balloon ventilation cavity are closed, and the first balloon ventilation cavity is respectively provided with a first valve port and a first balloon air outlet; A first balloon, which is sleeved on the outside of the soft catheter and surrounds the first balloon air outlet; A guide interface connected to one end of the soft catheter, through which the endoscope can be inserted into the endoscope insertion cavity; A first three-way valve is connected to the first valve port.

2. The disposable soft endoscope outer sleeve according to claim 1, characterized in that: A second balloon ventilation cavity is also formed inside the soft catheter, the two ends of the second balloon air cavity are closed, and the second balloon ventilation cavity is respectively provided with a second valve port and a second balloon air outlet; The disposable soft endoscope outer sleeve also includes a second balloon and a second three-way valve. The second balloon is sleeved on the outside of the soft sleeve and surrounds the second balloon air outlet therein. The second three-way valve is connected to the second valve port.

3. The disposable soft endoscope outer sleeve according to claim 2, characterized in that: The first balloon ventilation cavity and the second balloon ventilation cavity are respectively arranged on both sides of the endoscope insertion cavity.

4. The disposable soft endoscope outer sleeve according to claim 2 or 3, characterized in that: The first three-way valve is connected to the first valve port through a first balloon joint, and the second three-way valve is connected to the second valve port through a second balloon joint.

5. The disposable soft endoscope outer sleeve according to claim 4, characterized in that: The soft catheter, the first balloon joint, the second balloon joint and the guide interface are all formed by injection molding of polymer materials.

6. The disposable soft endoscope outer sleeve according to claim 4 or 5, characterized in that: The first balloon joint and the second balloon joint are respectively bonded to the first valve port and the second valve port by glue; the first balloon and the second balloon are respectively bonded to the outside of the soft catheter by glue.

7. The disposable soft endoscope outer sleeve according to any one of claims 1 to 6, characterized in that It also includes a transparent cap, which is sleeved on the other end of the soft catheter.

8. The disposable soft endoscope outer sleeve according to claim 7, characterized in that: The transparent cap is formed by injection molding of polymer material.

9. The disposable soft endoscope outer sleeve according to claim 7, characterized in that: The soft catheter, the guide interface and the transparent cap are all bonded with glue.

10. An endoscope system, characterized in that It comprises an endoscope and the disposable soft endoscope outer tube as claimed in any one of claims 1 to 9, wherein the endoscope can be inserted into the soft catheter of the disposable soft endoscope outer tube and drive the disposable soft endoscope outer tube into the human body.

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