CN205548502U - Endoscope send water installation pincers way to connect - Google Patents

Abstract

The utility model discloses a clamp channel joint of an endoscope water delivery device, which comprises a main joint, a compression screw sleeve, a clamp channel opening and a water delivery interface. The compression screw sleeve is installed outside one end of the main joint for connecting the endoscope. A sealing sleeve is installed inside one end of the main joint connected to the compression screw sleeve, and the other end of the main joint is equipped with a pliers gate for connecting pliers accessories. The water delivery interface is installed on the middle side wall of the main joint. The end of the main joint connected to the clamp channel is equipped with a first valve core seat, and a duckbill check valve and a clamp channel joint sealing gasket are installed in sequence in the first valve core seat, and are locked on the first valve core by a lock nut. In the inner cavity of the seat, the diameter of the inner hole of the clamp channel joint gasket is smaller than the diameter of the connecting clamp accessories; the water delivery interface is installed on the middle side wall of the main joint through the second valve core seat, and the second valve core A duckbill check valve is installed in the inner cavity of the seat. Prevents leaks from the jaws when the pump delivers water, and backflow of gastric and intestinal fluid into the delivery tube when the patient is inflated.

Description

Endoscope water delivery device clamp channel connector

technical field

The utility model relates to the technical field of electronic endoscope, in particular to a joint structure of an electronic endoscope clamp crossing and an endoscope water delivery device.

Background technique

Existing endoscope water delivery device clamp channel joint is a three-way pipe form, mainly is made up of main joint, compression screw sleeve, clamp channel mouth and water supply interface. The compression screw sleeve is installed outside one end of the main joint for connecting the endoscope, and a sealing gasket is installed in the end connected with the compression screw sleeve of the main joint to realize the sealing of the clamp channel joint and the operating handle of the endoscope. The other end of the main connector is equipped with a pliers port for connecting tong accessories, such as biopsy forceps. The pliers accessories are inserted from the pliers port, and then enter the pliers channel of the endoscope operating handle after passing through the main connector. The water delivery interface is installed on the middle side wall of the main joint, and water is delivered to the endoscope through the water delivery interface. The three-way tube realizes simultaneous water delivery and biopsy forceps insertion, which saves the examination time of the patient and improves the examination efficiency of the doctor.

However, during use, the following problems occurred:

(1) When the water pump is sending water, the pincer opening of the plug-in accessory is blocked by a rubber plug to prevent water from leaking from the pinch opening, but the pressure is high when the water pump is sending water, and the rubber plug is easily washed away by the pressure generated during water delivery, resulting in water delivery. Failed, affecting the doctor's operation.

(2) When the doctor inflates the patient's body, the air pressure in the human body will be high after inflation. At this time, the mucus and digested matter in the stomach will be back-pressed into the water supply pipe through the clamp joint, polluting the water supply pipe and affecting the doctor's use.

Utility model content

The utility model aims to provide a clamp channel joint of an endoscope water delivery device, which can prevent the leakage of the clamp channel when the water pump sends water, and prevent the liquid from the stomach and intestinal tract from flowing back into the water delivery pipe when the patient's body is inflated.

For this reason, the technical solution adopted by the utility model is: a clamp channel joint of an endoscope water delivery device, including a main joint, a compression screw sleeve, a clamp channel mouth and a water supply interface, and the compression screw sleeve is installed on the main joint One end is used to connect the endoscope, and a sealing sleeve is installed on the end of the main joint connected to the compression screw sleeve. The other end of the main joint is equipped with a pliers gate for connecting pliers accessories. The water supply interface is installed on the main joint On the side wall of the middle part of the main joint, the first valve core seat is installed in the end of the main joint connected to the pincer channel mouth, and the duckbill type check valve and the pincer channel joint sealing gasket are sequentially installed in the first valve core seat, and are locked by locking The nut is locked in the inner cavity of the first valve core seat, and the diameter of the inner hole of the clamp channel joint sealing gasket is smaller than the diameter of the connecting clamp accessories; the water delivery interface is installed on the middle side of the main joint through the second valve core seat On the wall, a duckbill check valve is installed in the cavity of the second valve core seat.

As a preference of the above scheme, the compression screw sleeve and the main joint are tightened by double-ended threads, and the outer end of the compression screw sleeve and the outer end of the gasket are extruded and bonded; the first valve core seat is placed In the main joint, the outer end of the first valve core seat is blocked by the pincer crossing, and a sealing ring is arranged between the first valve core seat and the main joint to prevent water from overflowing from the place where the first valve core seat matches the main joint; The main joint and the pincer crossing, the main joint and the second valve core seat, and the second valve core seat and the water delivery interface are threaded or buckled by viscose or plastic ultrasonic welding. Optimize the structure layout to make the overall structure compact and ensure sealing.

Further, the water delivery interface is a luer conical joint. Correspondingly, one end of the water delivery pipe is an outer conical joint, which is connected through a Luer joint to ensure a sealed connection at the water delivery interface.

The beneficial effects of the utility model:

(1) A second valve core seat is added to the water supply interface to install a duckbill one-way valve. When the doctor inflates the body, the duckbill one-way valve is used to control the backflow of liquid from the stomach and intestinal tract into the water supply pipe ;

(2) The first valve core seat is added to the end where the main joint is connected to the clamp channel to install the duckbill check valve and the clamp channel joint gasket, and it is locked by the lock nut. When the water is pumped and no accessories are used , the duckbill one-way valve in the main joint plays the role of blocking water leakage from the jaws; when the water is pumped and an accessory is inserted into the jaws, the accessories will open the duckbill one-way valve in the main joint, at this time The sealing function is sealed by the gasket of the clamp channel joint. The diameter of the inner hole is smaller than the diameter of the connecting clamp accessory.

Description of drawings

Fig. 1 is a sectional view of the utility model.

Fig. 2 is a perspective view of the utility model.

Fig. 3 is an exploded schematic view of the utility model.

Fig. 4 is the use status diagram of the utility model.

detailed description

Below by embodiment and in conjunction with accompanying drawing, the utility model is further described:

As shown in Fig. 1-Fig. 3, an endoscope water delivery device clamp channel joint mainly consists of a main joint 1, a compression screw sleeve 2, a clamp channel opening 3, a water supply interface 4, a sealing sleeve 5, and a first valve core seat 6 , Duckbill type one-way valve 7, pliers channel joint gasket 8, lock nut 9, second valve core seat 10 and sealing ring 11 are composed.

The compression screw sleeve 2 is installed outside an end of the main joint 1 for connecting the endoscope 12 (shown in conjunction with FIG. 4 ), and a sealing sleeve 5 is housed in the end where the main joint 1 connects the compression screw sleeve 2 . The other end of the main connector 1 is equipped with a pincer opening 3 for connecting pincer accessories, such as biopsy forceps. The water delivery interface 4 is installed on the middle part side wall of the main joint 1, and the clamp channel joint of the whole endoscope water delivery device is similar to the form of a three-way pipe. The above description is the same as the existing structure, and will not be repeated here.

The end of the main joint 1 connected to the pincer channel 3 is equipped with a first valve core seat 6, and a duckbill check valve 7 and a pincer channel joint sealing gasket 8 are installed in the first valve core seat 6 in sequence, and through the lock nut 9 Locked in the inner cavity of the first valve core seat 6, the diameter of the inner hole of the clamp channel joint sealing gasket 8 is smaller than the diameter of the connecting clamp accessories, and the water delivery interface 4 is installed on the middle side of the main joint 1 through the second valve core seat 10 On the wall, a duckbill check valve 7 is installed in the cavity of the second valve core seat 10 . The purpose of setting the first valve core seat 6 and the lock nut 9 is to install the duckbill check valve 7 and the seal gasket 8 of the pincer joint. The purpose of setting the second valve core seat 10 is to install the duckbill check valve 7 .

Preferably, the compression screw sleeve 2 and the main joint 1 are tightened by double-ended threads, and the outer end of the compression screw sleeve 2 is provided with a closing part, and the closing part is squeezed and fitted with the outer end of the sealing sleeve 5 to achieve the pincer channel. The sealing effect of the joint and the operating handle of the endoscope 1. The first valve core seat 6 is placed in the main joint 1, and the outer end of the first valve core seat 6 is blocked by the pincer channel opening 3, and a sealing ring 11 is arranged between the first valve core seat 6 and the main joint 1, and the sealing ring 11 There are two in total, which are arranged at intervals along the axis of the main joint 1 to play a double sealing effect and prevent water from overflowing from the place where the first valve core seat 6 cooperates with the main joint 1 . The main joint 1 and the pincer crossing 3, the main joint 1 and the second valve core seat 10, the second valve core seat 10 and the water supply interface 4 are all connected by threads, and can also be connected by buckle glue or plastic ultrasonic welding. The buckle glue means that the buckle is connected and then fixed by glue.

In addition, the water delivery interface 4 is a Luer conical joint. Correspondingly, one end of the water delivery pipe is an outer conical joint, and the connection through the Luer joint ensures a sealed connection at the water delivery interface.

Claims (3)

1. A clamp channel joint of an endoscope water delivery device, comprising a main joint (1), a compression screw sleeve (2), a clamp channel opening (3) and a water delivery interface (4), and the compression screw sleeve (2) is installed One end of the main joint (1) is used to connect the endoscope, and a sealing sleeve (5) is installed in one end of the main joint (1) connected to the compression screw sleeve (2), and the other end of the main joint (1) There is a pincer crossing (3) on the outside for connecting pincer accessories, and the water supply interface (4) is installed on the middle side wall of the main joint (1), and it is characterized in that: the main joint (1) is connected to the pincer crossing (3 ) is equipped with a first spool seat (6), and a duckbill check valve (7) and a pincer joint gasket (8) are installed in sequence in the first spool seat (6). The nut (9) is locked in the inner cavity of the first valve core seat (6), the diameter of the inner hole of the clamp channel joint gasket (8) is smaller than the diameter of the connecting clamp accessories, and the water delivery interface (4) passes through The second valve core seat (10) is installed on the middle part side wall of the main joint (1), and a duckbill type check valve (7) is installed in the inner chamber of the second valve core seat (10). 2. According to the clamp channel joint of the endoscope water delivery device according to claim 1, it is characterized in that: the compression screw sleeve (2) and the main joint (1) are tightened by a double thread, and the compression screw sleeve (2) The outer end closing portion of the sealing sleeve (5) is extruded and bonded; the first valve core seat (6) is placed in the main joint (1), and the outer end of the first valve core seat (6) passes through The jaw opening (3) is blocked, and a sealing ring (11) is arranged between the first valve core seat (6) and the main joint (1); the main joint (1) is connected with the jaw opening (3), the main joint (1) ) and the second valve core seat (10), and the second valve core seat (10) and the water supply interface (4) are threaded or buckled by viscose or plastic ultrasonic welding. 3. The channel joint of the endoscope water delivery device according to claim 1 or 2, characterized in that: the water delivery interface (4) is a luer conical joint.