Distal device and endoscope

Abstract

The utility model relates to the technical field of endoscopes, and provides a far-end device and an endoscope, and the far-end device comprises a mounting base, and a lens and a nozzle which are arranged on the mounting base; the nozzle is provided with a direct nozzle used for spraying liquid and / or gas towards a first direction, and a side nozzle used for spraying liquid and / or gas towards a second direction to the lens. The first direction and the second direction form an included angle. The endoscope comprises a connecting pipe, a handheld part arranged at the near end of the connecting pipe and a far-end device arranged at the far end of the connecting pipe. A catheter is arranged in the connecting pipe, and the far end of the catheter is communicated with the sprayer. The far-end device of the endoscope is provided with one spray head, so that two modes of direct spraying and side spraying can be compatible, the structure of the endoscope is simplified, the size of the far-end device is reduced, and the cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of endoscopes, and in particular provides a distal device and an endoscope. Background Art

[0002] An endoscope is a special instrument used to peek into objects or the human body. It is often used as a medical device in the medical field. It can be used to peek into the internal conditions of the human body, providing great convenience for the work process of medical staff.

[0003] Existing medical endoscopes often have a straight nozzle that can spray liquid and / or gas forward to clean the mucus inside the human body, making it easier for the lens to observe the lesion more clearly. However, during the use of endoscopes, there is still a common disadvantage that the lens is easily dirty and easily covered by various liquids, which affects the use; therefore, existing endoscopes are also equipped with a separate side nozzle for washing the lens, resulting in the need to set up two nozzles for the endoscope, and two sets of independent water and gas channels need to be set up inside, which is complex in structure and increases costs. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a remote device and an endoscope, aiming to solve the problem that the existing endoscope needs to be equipped with two nozzles, which has a complex structure and increases costs.

[0005] To achieve the above purpose, the technical solution adopted in this application is:

[0006] In a first aspect, an embodiment of the present application provides a distal device for an endoscope, the distal device comprising a mounting base and a lens and a nozzle arranged on the mounting base; the nozzle is formed with a straight nozzle for spraying liquid and / or gas in a first direction, and a side nozzle for spraying liquid and / or gas in a second direction toward the lens; the first direction is at an angle to the second direction.

[0007] In a possible design, a base surface is formed at the distal end of the mounting base, and the lens has a mirror surface exposed from the base surface; the nozzle includes a head protruding outward from the base surface, and the head is formed with the straight nozzle and the side nozzle.

[0008] In a possible design, the nozzle includes a main body located in the mounting base and a head portion provided on the main body portion and protruding outwardly beyond the base surface; a first water vapor channel is formed in the main body portion, and a second water vapor channel is formed in the head portion, and the second water vapor channel is connected to the first water vapor channel; the first water vapor channel is connected to the straight nozzle, and the second water vapor channel is connected to the side nozzle.

[0009] In a possible design, the mirror surface and the base surface are located on the same plane, and the second direction is parallel to the base surface.

[0010] In a possible design, the head has a contact wall surface in contact with the base surface, and an opening is provided on the contact wall surface so that the base surface forms an enclosing surface on one side of the second water vapor channel.

[0011] In a possible design, the first direction is perpendicular to the second direction.

[0012] In a possible design, the mounting base is provided with a first mounting groove and a second mounting groove which are spaced apart from each other; the lens is mounted in the first mounting groove, and the nozzle is mounted in the second mounting groove.

[0013] In a possible design, the mounting base is provided with at least a third mounting groove for mounting the lighting lamp.

[0014] In a second aspect, the present application provides an endoscope, comprising a connecting tube, a hand-held portion arranged at the proximal end of the connecting tube, and the distal device arranged at the distal end of the connecting tube; a catheter is arranged in the connecting tube, and the distal end of the catheter is connected to the nozzle.

[0015] In a possible design, the handheld portion includes a handle body and a water-gas connector provided on the handle body, and the proximal end of the catheter is connected to the water-gas connector.

[0016] The beneficial effects of the remote device and the atomization device provided in the embodiments of the present application are: by simultaneously arranging a straight nozzle and a side nozzle on one nozzle, the nozzle can spray fluid in a first direction through the straight nozzle to flush local mucus in the human body or expand the inner cavity; and the nozzle can also spray fluid in a second direction to the lens through the side nozzle, thereby cleaning the lens and ensuring the shooting effect of the lens; then, only one nozzle needs to be equipped on the remote device of the endoscope to be compatible with both direct spraying and side spraying, thereby simplifying the structure of the endoscope, and helping to reduce the volume of the remote device and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, 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 application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of an endoscope provided in one embodiment of the present application;

[0019] Figure 2 A schematic diagram of a three-dimensional structure of an endoscope without a connecting tube provided in an embodiment of the present application;

[0020] Figure 3 A schematic diagram of the three-dimensional structure of a remote device provided in one embodiment of the present application;

[0021] Figure 4 A schematic diagram of the three-dimensional structure of a nozzle of a remote device provided in one embodiment of the present application;

[0022] Figure 5 A schematic diagram of the three-dimensional structure of the head of the nozzle of the remote device provided in one embodiment of the present application.

[0023] Among them, the reference numerals in the figure are:

[0024] 1000. Endoscope;

[0025] 2000, Remote Device;

[0026] 1. Connecting pipe; 2. Hand-held part; 3. Mounting base; 301. Base surface;

[0027] 4. Lens; 401. Mirror; 5. Nozzle; 501. Direct nozzle; 502. Side nozzle;

[0028] 6. conduit; 7. water and gas joint; 8. head; 801. contact wall surface; 9. main body;

[0029] 10. First water vapor channel; 11. Second water vapor channel;

[0030] 12. First mounting slot; 13. Second mounting slot; 14. Opening; 15. Third mounting slot.

[0031] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0032] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0033] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0037] An endoscope is a special instrument used to peek into an object or the inside of the human body. It is often used as a medical device in the medical field and can be used to peek into the internal conditions of the human body, providing great convenience for the work process of medical staff. Existing medical endoscopes often have a straight nozzle that can spray liquid and / or gas forward to clean the mucus inside the human body, making it easier for the lens to observe the lesion more clearly. However, during the use of endoscopes, there is still a common disadvantage that the lens is easily dirty and easily covered by various liquids, which affects its use; therefore, the existing endoscopes are also equipped with a separate side nozzle for flushing the lens, resulting in the need to set up two nozzles for the endoscope, and two sets of independent water and gas channels need to be set up inside, which is complex in structure and increases costs.

[0038] Based on this, in order to solve the above problems, the present application designs a remote device, by simultaneously arranging a straight nozzle and a side nozzle on one nozzle, so that the nozzle can spray fluid in a first direction through the straight nozzle to flush the local mucus in the human body or expand the inner cavity; and the nozzle can also spray fluid in a second direction to the lens through the side nozzle, thereby cleaning the lens and ensuring the shooting effect of the lens; then, only one nozzle needs to be equipped on the remote device of the endoscope to be compatible with both direct spraying and side spraying, thereby simplifying the structure of the endoscope, and helping to reduce the volume of the remote device and reduce costs.

[0039] refer to Figure 1 , Figure 2 , Figure 3 An embodiment of the present application provides an endoscope 1000 , which includes a connecting tube 1 , a hand-held portion 2 disposed at the proximal end of the connecting tube 1 , and a distal device 2000 disposed at the distal end of the connecting tube 1 .

[0040] In some embodiments, the remote device 2000 includes a mounting base 3 and a lens 4 and a nozzle 5 disposed on the mounting base 3; the nozzle 5 is formed with a straight nozzle 501 for spraying liquid and / or gas in a first direction X, and a side nozzle 502 for spraying liquid and / or gas in a second direction Y to the lens 4; the first direction X and the second direction Y form an angle.

[0041] It can be understood that the endoscope 1000 is often used as a medical device. During operation, the operator holds the handheld part 2, extends the remote device 2000 and the connecting tube 1 into the human body, and the lens 4 is used to collect video images of the human body. A display screen can be set on the handheld part 2 or connected to an external display screen device, and the lens 4 transmits the video image signal to the display screen to clearly and intuitively observe the image condition inside the human body.

[0042] In the field of interventional medical device technology, the position close to the operator is generally defined as the proximal end, and the position far from the operator is defined as the distal end.

[0043] In some embodiments, the endoscope 1000 includes a catheter 6 arranged in the connecting tube 1, and the distal end of the catheter 6 is connected to the nozzle 5; a water-gas connector 7 is provided at the bottom of the hand-held part 2, and the proximal end of the catheter 6 is connected to the water-gas connector 7, and the water-gas connector 7 is used to connect to an external water-gas device to provide liquid and / or gas, and transport the liquid and / or gas to the nozzle 5 through the catheter 6; liquid and gas are both fluids, and the expressions such as liquid and / or gas are collectively referred to as fluids hereinafter.

[0044] Specifically, the nozzle 5 sprays liquid through the straight nozzle 501 toward the first direction X to the far end to clean local mucus in the human body, or sprays gas to expand the human body cavity, so as to facilitate the lens 4 to clearly observe the lesion. In addition, during the use of the endoscope 1000, the lens 4 is easily dirty, such as being covered by various liquids, which affects the shooting effect; the nozzle 5 sprays fluid to the lens 4 through the side nozzle 502, thereby achieving the effect of cleaning the lens 4, so that the lens 4 can shoot clearly without blur.

[0045] Here, the specific directions of the first direction X and the second direction Y are not limited, as long as the straight nozzle 501 and the side nozzle 502 can spray fluid in different directions respectively.

[0046] In some embodiments, reference Figure 3 The first direction X is the direction from the proximal end to the distal end of the mounting base 3, which is the X direction shown in the figure, and can effectively clean the front of the mounting base 3; the second direction Y is at an angle to the first direction X, and the angle is sufficient to ensure that the fluid sprayed from the side nozzle 502 can reach the lens 4 to clean the lens 4.

[0047] The remote device 2000 of the present application is provided with a straight nozzle 501 and a side nozzle 502 on a nozzle 5 at the same time, so that the nozzle 5 can spray fluid in a first direction X through the straight nozzle 501 to wash local mucus in the human body or expand the inner cavity; and the nozzle 5 can also spray fluid in a second direction Y to the lens 4 through the side nozzle 502, so as to clean the lens and ensure the shooting effect of the lens; then, only one nozzle 5 is needed to be equipped on the remote device 2000 of the endoscope 1000 to be compatible with both direct spraying and side spraying, thereby simplifying the structure of the endoscope 1000, and helping to reduce the volume of the remote device 2000 and reduce costs.

[0048] In some embodiments, a base surface 301 is formed at the distal end of the mounting base 3, and the lens 4 has a mirror surface 401 exposed from the base surface 301; the nozzle 5 includes a head 8 protruding outward from the base surface 301, and the head 8 is formed with a straight nozzle 501 and a side nozzle 502.

[0049] Specifically, the mounting base 3 is a cylindrical structure, the distal end of the mounting base 3 forms a base surface 301 , the lens 4 is mounted in the mounting base 3 , the distal end of the lens 4 has a mirror surface 401 , and the mirror surface 401 is exposed from the base surface 301 .

[0050] For example, the mirror surface 401 may be located in the same plane as the base surface 301 ; or, the mirror surface 401 may protrude outward from the base surface 301 ; or, the mirror surface 401 may be located in the mounting base 3 , and a window is formed on the base surface 301 to expose the mirror surface 401 .

[0051] refer to Figure 3 The head 8 of the nozzle 5 protrudes out of the base surface 301, a straight nozzle 501 is opened on the wall surface at the far end of the nozzle 5, and a side nozzle 502 is opened on the side wall of the nozzle 5; so that the straight nozzle 501 and the side nozzle 502 of the nozzle 5 can spray fluid from different directions respectively.

[0052] refer to Figure 3 , Figure 4 In some embodiments, the nozzle 5 includes a main body 9 located in the mounting base 3 and a head 8 provided on the main body 9 and protruding outwardly beyond the base surface 301; a first water vapor channel 10 is formed in the main body 9, and a second water vapor channel 11 is formed in the head 8, and the second water vapor channel 11 is connected to the first water vapor channel 10; the first water vapor channel 10 is connected to the straight nozzle 501, and the second water vapor channel 11 is connected to the side nozzle 502.

[0053] It can be understood that the main body 9 is arranged in the mounting base 3, the distal end of the conduit 6 is connected to the main body 9, and the fluid in the conduit 6 can be transported to the first water vapor channel 10; the second water vapor 11 is connected to the first water vapor channel 10, and the second water vapor channel 11 and the first water vapor channel 10 extend in different directions, that is, the fluid in the first water vapor channel 10 turns and flows into the second water vapor channel 11.

[0054] In some embodiments, the first water vapor channel 10 extends along the first direction X, and the first water vapor channel 10 is connected to the straight spray port 501 in the first direction X, and the fluid in the first water vapor channel 10 is sprayed toward the first direction X through the straight spray port 501 .

[0055] In other embodiments, the second water vapor channel 11 extends along the second direction Y, and the second water vapor channel 11 is connected to the side nozzle 502 in the second direction Y, and the fluid in the second water vapor 11 is sprayed toward the second direction Y through the side nozzle 502 .

[0056] By adopting the above technical features, the first water-gas channel 10 and the second water-gas channel 11 are provided to change the flow direction of the fluid in the nozzle 5, so that the liquid fluid can be sprayed in different directions, and the structure is simple and reliable.

[0057] refer to Figure 3 , Figure 5 In some embodiments, the mirror surface 401 and the base surface 301 are located on the same plane, and the second direction Y is parallel to the base surface 301 .

[0058] The mounting base 3 is provided with a first mounting groove 12 and a second mounting groove 13 which are spaced apart from each other; the lens 4 is mounted in the first mounting groove 12 , and the nozzle 5 is mounted in the second mounting groove 13 .

[0059] It can be understood that the first mounting groove 12 is formed with a groove on the base surface 301 that matches the contour of the mirror surface 401. After the lens 4 is installed in the first mounting groove 12, the mirror surface 401 of the lens 4 can cover the groove, and the mirror surface 401 and the base surface 301 are located on the same plane, making the structure flat; the installation structure of the lens 4 is stable, will not deviate or shake, and can clearly capture pictures or videos.

[0060] The second direction Y is parallel to the base surface 301 , that is, the fluid ejected from the side nozzle 502 flows along the base surface 301 to the mirror surface 401 to flush and clean the mirror surface 401 ; and the lens 4 is located in the mounting base 3 , with only the mirror surface 401 exposed, thereby reducing the damage caused by the fluid to the lens 4 .

[0061] In some embodiments, the first direction X is perpendicular to the second direction Y, and the second direction Y is parallel to the base surface 301, that is, the first direction X is perpendicular to the base surface 301, and the fluid ejected from the straight nozzle 501 will be ejected toward the distal end in a direction perpendicular to the base surface 301; it can effectively clean the mucus inside the human body, making it easier for the lens 4 to observe the lesion more clearly.

[0062] refer to Figure 3 , Figure 4 In some embodiments, the head 8 has a contact wall 801 in contact with the base surface 301 , and an opening 14 is provided on the contact wall 801 so that the base surface 301 forms an enclosing surface on one side of the second water vapor channel 11 .

[0063] Specifically, refer to Figure 4 The contact wall surface 801 of the head 8 and the base surface 301 are in contact with each other, and an opening 14 connected to the second water vapor channel 11 is pre-opened on the contact wall surface 801, so that the second water vapor channel 11 will be formed between the head 8 and the base surface 301, and the base surface 301 forms an enclosure surface on one side of the second water vapor channel 11. Then, the fluid in the second water vapor channel 11 will directly contact the base surface 301, and the fluid will flow along the base surface 301 toward the mirror surface 401, so that the fluid is closer to the mirror surface 401, and the mirror surface 401 can be better flushed and cleaned.

[0064] In some embodiments, the side nozzle 502 is a waist hole, which can increase the cross-sectional area of ​​the fluid sprayed from the side nozzle 502 and can play a flushing and cleaning role on the entire area of ​​the mirror surface 401 as much as possible.

[0065] refer to Figure 5 In some embodiments, the mounting base 3 is provided with at least a third mounting groove 15 for mounting the lighting lamp.

[0066] It can be understood that a lighting lamp is installed on the mounting base 3. The light inside the human body is relatively dark, and the lighting lamp is used for illumination, so that the lens 4 can collect photos or videos more clearly. An electrical connection line for electrically connecting to the lighting lamp is provided in the connecting tube 1 to power the lighting lamp.

[0067] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A distal device for an endoscope, characterized in that: The remote device comprises a mounting base, a lens and a nozzle arranged on the mounting base; the nozzle is formed with a straight nozzle for spraying liquid and / or gas in a first direction, and a side nozzle for spraying liquid and / or gas in a second direction to the lens; The first direction and the second direction form an angle.

2. The remote device according to claim 1, characterized in that: A base surface is formed at the distal end of the mounting base, and the lens has a mirror surface exposed from the base surface; the nozzle includes a head protruding outwardly beyond the base surface, and the head is formed with the straight nozzle and the side nozzle.

3. The remote device according to claim 2, characterized in that: The nozzle includes a main body located in the mounting base and a head portion provided on the main body portion and protruding outwardly beyond the base surface; a first water vapor channel is formed in the main body portion, and a second water vapor channel is formed in the head portion, and the second water vapor channel is connected to the first water vapor channel; the first water vapor channel is connected to the straight nozzle, and the second water vapor channel is connected to the side nozzle.

4. The remote device according to claim 2, characterized in that: The mirror surface and the base surface are located on the same plane, and the second direction is parallel to the base surface.

5. The remote device according to claim 3, characterized in that: The head has a contact wall surface in contact with the base surface, and an opening is provided on the contact wall surface so that the base surface forms an enclosed surface on one side of the second water vapor channel.

6. The remote device according to any one of claims 1 to 5, characterized in that: The first direction is perpendicular to the second direction.

7. The remote device according to any one of claims 1 to 5, characterized in that: The mounting base is provided with a first mounting groove and a second mounting groove which are spaced apart from each other; the lens is mounted in the first mounting groove, and the nozzle is mounted in the second mounting groove.

8. The remote device according to claim 7, characterized in that: The mounting base is also provided with at least a third mounting groove for mounting the lighting lamp.

9. An endoscope, characterized in that: A distal device as claimed in any one of claims 1 to 8, comprising a connecting tube, a hand-held portion arranged at the proximal end of the connecting tube, and a distal device arranged at the distal end of the connecting tube; a catheter is arranged in the connecting tube, and the distal end of the catheter is connected to the nozzle.

10. The endoscope according to claim 9, characterized in that The handheld part comprises a handle body and a water-gas joint arranged on the handle body, and the proximal end of the catheter is connected to the water-gas joint.

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