Novel water and gas conveying connector for endoscope

Abstract

A novel water and gas conveying connector for an endoscope relates to the field of water and gas conveying of endoscopes and comprises an outer shell, an upper connector is fixedly mounted in an inner cavity of the outer shell, the upper end of the upper connector is communicated with an output pipe, the lower end of the upper connector is fixedly connected with a connecting cylinder, and an inner cavity of the connecting cylinder is communicated with an inner cavity of the upper connector. The lower end face of the connecting cylinder is rotationally connected with a switching disc, a circular flow channel is formed in the switching disc, and the circular flow channel is communicated with an inner cavity of the connecting cylinder. According to the endoscope switching device, switching of steam input is completed by rotating the handle part, steam can be conveyed to a human body conveniently when a doctor uses an endoscope to operate, and the endoscope switching device is convenient to use and high in practicability. And when air supply and water supply are not needed, the handle part can be rotated by 90 degrees, so that the circular flow channel is not communicated with the two through holes, sealing is formed, and double-layer protection is formed between the circular flow channel and a main switch of the endoscope.

Description

Technical Field

[0001] The utility model relates to the field of water-gas transportation of endoscopes, in particular to a novel water-gas transportation joint for endoscopes. Background Art

[0002] An endoscope is a precision medical and industrial testing device that enters the body or a closed space through a natural orifice or artificial incision in order to observe, diagnose and treat lesions of various organs or structures. In order to better perform the operation and observation, it is often necessary to deliver liquid or gas into the working channel of the endoscope.

[0003] However, most of the current endoscopes often need to switch the water and gas pipes for use. Each unplugging and installation is very troublesome, which greatly affects the work efficiency and is prone to certain impurity contamination. Utility Model Content

[0004] The purpose of the utility model is to provide a novel water-gas delivery joint for an endoscope to solve the problems raised in the above-mentioned background technology.

[0005] The utility model solves the technical problem by adopting the following technical solutions:

[0006] A novel water-gas delivery joint for an endoscope comprises an outer shell, an upper joint is fixedly installed in the inner cavity of the outer shell, the upper end of the upper joint is connected with an output pipe, the lower end of the upper joint is fixedly connected with a connecting tube, the inner cavity of the connecting tube is connected with the inner cavity of the upper joint, the lower end surface of the connecting tube is rotatably connected with a switching disk, a circular flow channel is arranged in the switching disk, the circular flow channel and the inner cavity of the connecting tube are connected with each other, the lower end surface of the switching disk is rotatably connected with a lower joint, the lower joint is fixed on the side wall of the inner cavity of the outer shell, two through holes are arranged in the lower joint, the two through holes are symmetrically distributed about the center of the lower joint, a connecting input pipe 1 is installed at the position of one of the through holes on the lower end surface of the lower joint, and a connecting input pipe 2 is installed at the position of the other through hole, a handle portion is fixedly connected to the outer end surface of the switching disk, an arc-shaped opening is arranged on the outer end surface of the outer shell, and the handle portion passes through the arc-shaped opening.

[0007] Preferably, an opening is provided through the cylindrical portion of the connecting cylinder, and an activated carbon filter is slidably connected in the opening, a smooth ball is fixedly provided on the connecting frame at the right end of the activated carbon filter, a support plate is fixedly connected to the upper end face of the switching disc, an arc plate is fixedly connected to the upper end face of the support plate, the inner end face of the arc plate abuts against the smooth ball, and a reset spring is connected between the inner side of the connecting frame on the right end face of the activated carbon filter and the outer end face of the cylindrical portion.

[0008] Preferably, a countersunk cavity is provided at the bottom of the upper joint, an annular protrusion is provided at the edge of the inner cavity of the upper joint in the countersunk cavity, an annular groove is provided on the upper end surface of the connecting tube, the connecting tube is embedded in the countersunk cavity, and the annular protrusion is embedded in the annular groove.

[0009] Preferably, an annular protrusion 2 is provided at the edge of the bottom end of the switching disc, a rotating protrusion is provided at the center of the bottom end of the switching disc, an annular groove 2 is provided on the upper end surface of the lower joint, the annular protrusion 2 is slidably embedded in the annular groove 2, and the rotating protrusion is rotatably connected to the center hole at the top end of the lower joint.

[0010] Preferably, the inner side of the arc surface of the left half of the arc plate is arranged in an undulating corrugated shape.

[0011] Preferably, a round ball is arranged on the outer end surface of the handle portion.

[0012] The advantages and positive effects of the utility model are:

[0013] 1. The utility model completes the switching of water and gas input by rotating the handle part, which greatly facilitates the doctor to deliver water and gas to the human body when using the endoscope. When air and water delivery is not needed, the handle part can be rotated 90 degrees, so that the circular flow channel and the two through holes are not connected, thereby forming a seal and forming a double layer of protection between the main switch of the endoscope;

[0014] 2. At the same time, the activated carbon filter can also be used to filter the transported water and gas. When the water and gas are switched, the activated carbon filter is also switched, so that cross contamination will not occur, which is very safe and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the overall structure of a new type of water-gas delivery joint for an endoscope of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal development structure of a new type of water-gas delivery joint for endoscopes of the utility model;

[0018] Figure 3 This is a schematic diagram of the main cross-sectional structure of a new type of water-gas delivery joint for an endoscope of the utility model;

[0019] Figure 4 This is a schematic diagram of the upper joint structure of a new type of water and gas delivery joint for an endoscope in the utility model;

[0020] Figure 5This is a schematic diagram of the structure of a connecting tube of a new type of water-gas delivery joint for an endoscope according to the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the lower joint of the middle component of a new type of water and gas delivery joint for an endoscope according to the utility model;

[0022] Figure 7 This is a schematic diagram of the structure of a switching disc and a connecting tube in a new type of water-gas delivery joint for an endoscope of the utility model;

[0023] Figure 8 This is a structural schematic diagram from another perspective of a switching disc and a connecting tube in a novel water-gas delivery joint for an endoscope of the utility model.

[0024] The symbols in the accompanying drawings are described as follows: outer shell 10; output pipe 11; input pipe one 12; input pipe two 13; arc-shaped mouth 14; upper joint 15; countersunk cavity 16; annular protrusion one 17; connecting tube 18; annular groove one 19; cylindrical part 20; arc-shaped plate 21; support plate 22; activated carbon filter 23; smooth ball 24; switching disk 25; handle part 26; 27; rotating protrusion 28; circular flow channel 29; annular protrusion two 30; annular groove two 31; lower joint 32; through hole 33. DETAILED DESCRIPTION

[0025] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0026] Combine the following Figure 1-8 The utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are the same as Figure 1 The view direction is consistent in front, back, left, right, up and down directions. Figure 1 The directions shown are consistent with the front, back, left, right, up and down directions of the device of the utility model when viewed from the front.

[0027] In the present invention, unless otherwise clearly defined and specified, 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, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of at least two elements or the interaction relationship between at least two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0029] See also Figure 1-8 The utility model provides an embodiment: a new type of water-gas delivery joint for an endoscope, comprising an outer shell 10, an output tube 11 at the upper end of the outer shell 10 is used as an output connection tube of the endoscope, and an input tube 12 and an input tube 2 13 at the bottom can be used as connections for a water delivery pipe and an air delivery pipe, respectively, and an upper joint 15 is fixedly installed in the inner cavity of the outer shell 10 at the top area, the output tube 11 and the inner cavity of the upper joint 15 are communicated with each other, and a connecting tube 18 is fixedly connected to the bottom of the upper joint 15, and the inner cavity of the connecting tube 18 is connected to the upper joint 1 5 are interconnected, the switching disc 25 is rotatably connected to the lower end of the connecting tube 18, and the circular flow channel 29 provided in the switching disc 25 is interconnected with the inner cavity of the connecting tube 18, and the lower end surface of the switching disc 25 is rotatably connected to a lower joint 32, the lower joint 32 is fixed on the inner cavity side wall of the outer shell 10, and two through holes 33 are provided in the lower joint 32, and the two through holes 33 are symmetrically distributed about the center of the lower joint 32, and the input pipe 1 12 and the input pipe 2 13 are respectively connected to the corresponding through holes 33;

[0030] By rotating the handle portion 26 fixed on the switching disc 25, holding the ball on the handle portion 26, sliding along the arc-shaped opening 14 set on the outer shell 10, and rotating one hundred and eighty degrees, the circular flow channel 29 is moved to the position of the through hole 33 on the right, and the through hole 33 on the left contacts with the bottom of the switching disc 25 to form a seal, thereby completing the switching, and when air and water supply are not required, the handle portion 26 can be rotated ninety degrees, so that the circular flow channel 29 and the two through holes 33 are not connected, thereby forming a seal, and forming a double layer of protection between the main switch of the endoscope.

[0031] In addition, in one embodiment, the difference from the above embodiment is that an opening is provided through the cylindrical portion 20 of the above-mentioned connecting cylinder 18, and an activated carbon filter 23 is slidably connected in the opening, a smooth ball 24 is fixedly provided on the connection frame at the right end of the activated carbon filter 23, a support plate 22 is fixedly connected to the upper end surface of the switching disc 25, an arc plate 21 is fixedly connected to the upper end surface of the support plate 22, the inner cavity end surface of the arc plate 21 abuts against the smooth ball 24, and a reset spring is connected between the inner side of the connection frame on the right end surface of the activated carbon filter 23 and the outer end surface of the cylindrical portion 20;

[0032] In this way, not only can the transported water and gas be filtered to a certain extent through the activated carbon filter 23, but also when the handle part 26 is rotated for switching, the arc plate 21 follows the switching disk 25 to rotate, so that the inner end surface of the arc plate 21 abuts against the smooth sphere 24 for rotation, thereby pushing the activated carbon filter 23 to slide to the left, pushing in the part of the activated carbon filter 23 exposed on the outside, and pushing out the part originally in the cylindrical part 20, which has completed the filtration, so that when the water gas is switched, the activated carbon filter 23 is also switched, so that no cross contamination will be formed, which is very safe and convenient.

[0033] In addition, in one embodiment, different from the above embodiment, the inner side of the arc surface of the left half of the arc plate 21 is set to be undulating corrugated, so that when the rear half of the arc plate 21 abuts against the smooth sphere 24 for sliding, the activated carbon filter 23 will form a reciprocating left and right shaking on the corrugation of the arc plate 21, thereby being able to push out some impurities on the left part of the activated carbon filter 23 and shake off.

[0034] It should be noted that in order to make the connection between the connecting tube 18 and the upper joint 15 more sealed, in the present embodiment, a countersunk cavity 16 is provided at the bottom of the upper joint 15, and an annular protrusion 17 is provided at the edge of the inner cavity position of the upper joint 15 in the countersunk cavity 16, and an annular groove 19 is provided on the upper end surface of the connecting tube 18, and the connecting tube 18 is embedded in the countersunk cavity 16, and the annular protrusion 17 is embedded in the annular groove 19.

[0035] It should also be noted that in order to make the rotation of the switching disc 25 on the lower joint 32 more stable, in the present embodiment, an annular protrusion 230 is provided at the edge of the bottom end of the switching disc 25, a rotating protrusion 28 is provided at the center of the bottom end of the switching disc 25, and an annular groove 231 is provided on the upper end surface of the lower joint 32, the annular protrusion 230 is slidably embedded in the annular groove 231, and the rotating protrusion 28 is rotatably connected to the center hole at the top end of the lower joint 32.

[0036] In the specific implementation, the output tube 11 is first connected to the water and gas output tube of the endoscope, while the input tube 12 is connected to the output tube of the water supply device, and the input tube 2 13 is connected to the output tube of the gas supply device. When the water and gas switch is required, the handle 26 fixed on the switching disk 25 is rotated, the ball on the handle 26 is held, and the ball is slid along the arc-shaped opening 14 provided on the outer shell 10, thereby rotating 180 degrees, and the circular flow channel 29 is moved to the position of the through hole 33 on the right side, and the through hole 33 on the left side is aligned with the through hole 33 on the right side. The bottom of the switching disc 25 contacts to form a seal. At the same time, the arc plate 21 rotates following the switching disc 25, so that the inner end surface of the arc plate 21 abuts against the smooth sphere 24 to rotate, thereby pushing the activated carbon filter 23 to slide to the left, pushing in a part of the activated carbon filter 23 exposed on the outside, and pushing out a part originally in the cylindrical part 20. This part has completed the filtration, so when the water gas is switched, the activated carbon filter 23 is also switched, so that no cross contamination will be formed, which is very safe and convenient.

[0037] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A novel water-gas delivery joint for an endoscope, comprising an outer shell (10), characterized in that: An upper joint (15) is fixedly installed in the inner cavity of the outer shell (10), the upper end of the upper joint (15) is connected to the output pipe (11), the lower end of the upper joint (15) is fixedly connected to a connecting tube (18), the inner cavity of the connecting tube (18) and the inner cavity of the upper joint (15) are connected to each other, the lower end surface of the connecting tube (18) is rotatably connected to a switching disk (25), a circular flow channel (29) is provided in the switching disk (25), the circular flow channel (29) and the inner cavity of the connecting tube (18) are connected to each other, the lower end surface of the switching disk (25) is rotatably connected to a lower joint (32), the lower joint (32) ) is fixed on the side wall of the inner cavity of the outer shell (10), two through holes (33) are arranged in the lower joint (32), and the two through holes (33) are symmetrically distributed about the center of the lower joint (32), and a connecting input pipe (12) is installed at the position of one of the through holes (33) on the lower end surface of the lower joint (32), and a connecting input pipe (13) is installed at the position of the other through hole (33), and a handle (26) is fixedly connected to the outer end surface of the switching disk (25), and an arc-shaped opening (14) is arranged on the outer end surface of the outer shell (10), and the handle (26) passes through the arc-shaped opening (14).

2. The novel water-gas delivery joint for endoscope according to claim 1, characterized in that: An opening is provided through the cylindrical portion (20) of the connecting cylinder (18), and an activated carbon filter (23) is slidably connected in the opening; a smooth ball (24) is fixedly provided on a connection frame at the right end of the activated carbon filter (23); a support plate (22) is fixedly connected to the upper end surface of the switching disc (25); an arc plate (21) is fixedly connected to the upper end surface of the support plate (22); an inner cavity end surface of the arc plate (21) abuts against the smooth ball (24); and a return spring is connected between the inner side of the connection frame at the right end surface of the activated carbon filter (23) and the outer end surface of the cylindrical portion (20).

3. The novel water-gas delivery joint for endoscope according to claim 1, characterized in that: The bottom of the upper joint (15) is provided with a countersunk cavity (16), and an annular protrusion (17) is provided at the edge of the inner cavity of the upper joint (15) in the countersunk cavity (16). The upper end surface of the connecting tube (18) is provided with an annular groove (19), and the connecting tube (18) is embedded in the countersunk cavity (16), and the annular protrusion (17) is embedded in the annular groove (19).

4. The novel water-gas delivery joint for endoscope according to claim 1, characterized in that: A second annular protrusion (30) is provided at the edge of the bottom end of the switching disc (25), a rotating protrusion (28) is provided at the center of the bottom end of the switching disc (25), and a second annular groove (31) is provided on the upper end surface of the lower joint (32), the second annular protrusion (30) is slidably embedded in the second annular groove (31), and the rotating protrusion (28) is rotatably connected to the center hole at the top end of the lower joint (32).

5. The novel water-gas delivery joint for endoscope according to claim 2, characterized in that: The inner side of the left half of the arc surface of the arc-shaped plate (21) is arranged in an undulating corrugated shape.

6. The novel water-gas delivery joint for endoscope according to claim 1, characterized in that: A round ball is arranged on the outer end surface of the handle portion (26).

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