Auxiliary water supply structure of endoscope and endoscope

Abstract

The utility model discloses an endoscope pair water supply structure and an endoscope, relates to the technical field of medical instruments, and solves the technical problems that when an existing endoscope pair supplies water, cross infection of a patient is caused by backflow easily, and installation and cleaning are inconvenient due to the fact that an auxiliary water supply pipe is added. Comprising an endoscope operation part shell, an interface seat is arranged on the endoscope operation part shell, and an interface assembly is installed on the interface seat; the connector assembly comprises an auxiliary water supply connector, an auxiliary water supply nut and a one-way valve, the auxiliary water supply connector is movably sleeved with the auxiliary water supply nut, the one-way valve is fixedly arranged at the bottom end of the auxiliary water supply connector, the auxiliary water supply nut is in threaded connection with the top end of the connector base, and after connection, the lower end of the auxiliary water supply connector and the one-way valve are inserted into the connector base. According to the utility model, backflow of the endoscope can be prevented, cross infection of a patient is not easy to occur, the device is convenient to install and clean, and the flow of supplied water can be controlled according to needs.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, in particular to an endoscope auxiliary water supply structure and an endoscope. Background Art

[0002] Endoscopes have been widely used in the medical field for a long time. By inserting a slender insertion portion into the body cavity, the endoscope can observe the internal organs in the body cavity, and can also perform various treatments on the treatment tools inserted into the insertion channel as needed. A bending portion is provided at the front end of the insertion portion, and the observation direction of the observation window at the front end portion can be changed by operating the operating portion of the endoscope.

[0003] In order to avoid bleeding and unclear wounds, the endoscope will use a water pump to send water to the auxiliary water supply port at the front end of the endoscope to clean the wound. However, when the water pump stops running, due to the presence of liquid in the body and the air pressure in the body being greater than the external air pressure, the liquid will flow back to the water pump through the auxiliary water supply port, causing cross infection or transmission of the patient. In order to avoid the backflow phenomenon, an additional auxiliary water supply pipe is usually used on the market, but this is inconvenient to install and clean. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an endoscope auxiliary water supply structure, which solves the problems that the existing endoscope auxiliary water supply is prone to cross infection of patients due to backflow, and the addition of an auxiliary water supply pipe will cause inconvenience in installation and cleaning.

[0005] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the utility model, an endoscope auxiliary water supply structure is proposed, comprising an endoscope operating unit housing, an interface seat is provided on the endoscope operating unit housing, and an interface assembly is installed on the interface seat;

[0006] The interface assembly includes a secondary water supply interface, a secondary water supply nut and a one-way valve. The secondary water supply nut is movably mounted on the secondary water supply interface, and the one-way valve is fixedly arranged at the bottom end of the secondary water supply interface. The secondary water supply nut is threadedly connected to the top end of the interface seat. After connection, the lower end of the secondary water supply interface and the one-way valve are inserted into the interface seat.

[0007] As a further technical solution of the utility model, the interface assembly further includes a water guide valve and a valve knob, the water guide valve is arranged in the auxiliary water supply interface, the valve knob is sleeved on the auxiliary water supply interface, and a connecting assembly for driving the water guide valve to rotate is arranged between the valve knob and the water guide valve;

[0008] A first through hole is arranged near the bottom end of the water guide valve, a second through hole corresponding to the first through hole is arranged in the auxiliary water supply interface, and the bottom end of the interface seat is connected with an auxiliary water supply pipe.

[0009] As a further technical solution of the utility model, the connecting assembly includes an arc-shaped through groove opened on the auxiliary water supply interface, and a connecting piece installed between the valve knob and the water guide valve, and the connecting piece is inserted into the arc-shaped through groove.

[0010] As a further technical solution of the utility model, a countersunk groove matching the interface seat is provided on the outer shell of the endoscope operating part, the bottom end of the interface seat passes through the countersunk groove and extends to the inner cavity of the outer shell of the endoscope operating part, and the bottom end of the interface seat is fixedly connected to the interface seat nut.

[0011] As a further technical solution of the utility model, a key slot is provided on the slot wall of the counterbore slot, and a limit key that matches the key slot is provided on the interface seat.

[0012] As a further technical solution of the present invention, an auxiliary water supply cap is sleeved on the upper end of the interface seat, and the auxiliary water supply cap can rotate in the circumferential direction of the interface seat.

[0013] As a further technical solution of the present utility model, the interface assembly also includes an interface positioning member, which is fixedly arranged at the lower end position of the auxiliary water supply interface and limits the auxiliary water supply nut from escaping from the lower end of the auxiliary water supply interface, and the interface positioning member is inserted in the interface seat.

[0014] As a further technical solution of the utility model, a protrusion is arranged on the bottom end of the interface positioning member, a notch matching the protrusion is opened on the top end of the interface seat, and the protrusion is engaged with the notch.

[0015] As a further technical solution of the utility model, a sealing member is provided between the valve knob and the auxiliary water supply interface.

[0016] In an embodiment of a second aspect, the utility model provides an endoscope, which applies the endoscope auxiliary water supply structure described in the embodiment of the first aspect.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. In the present invention, a one-way valve is arranged in the auxiliary water supply interface, so that when the water pump delivers water to the auxiliary water supply port at the front end of the endoscope, the liquid can be prevented from flowing back, thereby reducing cross infection or transmission of patients.

[0019] 2. In the utility model, the interface assembly facilitates the installation and docking of the auxiliary water supply interface and the interface seat. When the valve knob is turned, the connecting assembly facilitates the synchronous rotation of the water guide valve in the auxiliary water supply interface, thereby facilitating the control of the overlap between the first through hole and the second through hole, thereby achieving the control of the water flow size. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the auxiliary water supply structure of the endoscope of the utility model;

[0021] Figure 2 This is a front view of the interface assembly in the auxiliary water supply structure of the endoscope of the utility model;

[0022] Figure 3 It is a cross-sectional view of the interface assembly in the auxiliary water supply structure of the endoscope of the utility model;

[0023] Figure 4 A partial stereoscopic view of the interface assembly in the auxiliary water supply structure of the endoscope of the utility model

[0024] Figure 5 It is a partially exploded schematic diagram of the interface assembly in the auxiliary water supply structure of the endoscope of the utility model;

[0025] Figure 6 It is a structural schematic diagram of the cleaning of the interface component in the auxiliary water supply structure of the endoscope of the utility model.

[0026] In the figure: 1. endoscope operating part housing; 2. interface seat; 3. interface assembly; 301. auxiliary water supply interface; 302. auxiliary water supply nut; 303. interface positioning member; 304. one-way valve; 305. water guide valve; 306. valve knob; 4. first through hole; 5. second through hole; 6. auxiliary water supply pipe; 7. arc-shaped through groove; 8. connecting member; 9. countersunk groove; 10. interface seat nut; 11. keyway; 12. auxiliary water supply cap; 13. bump; 14. notch. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1-6As shown, the endoscope auxiliary water supply structure includes an endoscope operating part shell 1, an interface seat 2 is arranged on the endoscope operating part shell 1, a countersunk groove 9 matching the interface seat 2 is opened on the endoscope operating part shell 1, the bottom end of the interface seat 2 passes through the countersunk groove 9 and extends to the inner cavity of the endoscope operating part shell 1, and the bottom end of the interface seat 2 is screwed with an interface seat nut 10, and the interface seat 2 can be installed by rotating the interface seat nut 10 to make it fit with the inner surface of the endoscope operating part shell 1, a key groove 11 is opened on the groove wall of the countersunk groove 9, and a limit key matching the key groove 11 is provided on the interface seat 2 to facilitate limiting, so that the interface seat 2 will not be driven to rotate when the interface seat nut 10 is rotated.

[0029] An interface assembly 3 is installed on the interface seat 2, and the interface assembly 3 includes an auxiliary water supply interface 301, an auxiliary water supply nut 302, an interface positioning member 303, a one-way valve 304, a water guide valve 305 and a valve knob 306. The water guide valve 305 is arranged in the auxiliary water supply interface 301, and the valve knob 306 is sleeved on the auxiliary water supply interface 301. A connecting assembly for driving the water guide valve 305 to rotate is arranged between the valve knob 306 and the water guide valve 305. In order to ensure the sealing performance, a sealing member is arranged between the valve knob 306 and the auxiliary water supply interface 301. In this embodiment, the sealing member is two sealing rings sleeved in the gap between the valve knob 306 and the auxiliary water supply interface 301.

[0030] The connecting component includes an arc-shaped groove 7 provided on the auxiliary water supply interface 301, and a connecting piece 8 installed between the valve knob 306 and the water guide valve 305, and the connecting piece 8 is inserted into the arc-shaped groove 7. In the present embodiment, there are two arc-shaped grooves 7. A first through hole 4 is provided at a position near the bottom end of the water guide valve 305. A second through hole 5 corresponding to the first through hole 4 is provided in the auxiliary water supply interface 301. The valve knob 306 is rotated to drive the water guide valve 305 to rotate synchronously, thereby adjusting the position of the first through hole 4, controlling the overlap between the first through hole 4 and the second through hole 5, and realizing the control of the water flow. The first through hole 4 and the second through hole 5 are respectively set to two. The bottom end of the interface seat 2 is connected to one end of the auxiliary water supply pipe 6, and the other end of the auxiliary water supply pipe 6 is connected to the lens of the endoscope.

[0031] Preferably, the connecting member 8 is a screw, the big head of the screw is fixed on the valve knob 306 by threads, and the small head of the screw is screwed / clamped to the water guide valve 305. Of course, other connecting members 8 that can achieve connection can also be selected by technical personnel in this field.

[0032] The auxiliary water supply nut 302 is movably mounted on the auxiliary water supply interface 301, and the interface positioning member 303 is fixedly arranged at the lower end position of the auxiliary water supply interface 301 to limit the auxiliary water supply nut 302 from escaping from the lower end of the auxiliary water supply interface 301. A protrusion 13 is arranged on the bottom end of the interface positioning member 303, and a notch 14 matching the protrusion 13 is opened on the top end of the interface seat 2, and the protrusion 13 is engaged with the notch 14 to realize the limitation of the rotational freedom of the auxiliary water supply interface 301, and the auxiliary water supply nut 302 can be threadedly connected with the top end of the interface seat 2, and it can move longitudinally on the auxiliary water supply interface 301 when the auxiliary water supply nut 302 is not tightened, ensuring that there is no need to find an additional nut during installation, which is beneficial to improving installation efficiency.

[0033] The one-way valve 304 is fixedly arranged at the bottom end of the auxiliary water supply interface 301. After the water supply nut 302 is threadedly connected with the top end of the interface seat 2, the lower end of the auxiliary water supply interface 301, the interface positioning member 303 and the one-way valve 304 are inserted into the interface seat 2. In this embodiment, the one-way valve 304 is made of silicone. The one-way valve 304 and the auxiliary water supply interface 301 are bonded together by glue. The one-way valve 304 is provided with a gap. When the water pump delivers water, the external pressure is greater than the lens of the endoscope. Internal pressure, so the gap will open to let the liquid pass smoothly. When the water pump is not used to deliver water, the internal pressure is greater than the external pressure, which will squeeze the gap to prevent the liquid from flowing back. An auxiliary water supply cap 12 is sleeved on the upper end of the interface seat 2, and the auxiliary water supply cap 12 can rotate in the circumferential direction of the interface seat 2. When the endoscope needs to be cleaned, the interface component 3 can be removed from the interface seat 2 to expose the auxiliary water supply port for cleaning with tools such as a brush. The removed interface component 3 is hung on the endoscope through the auxiliary water supply cap 12.

[0034] The working principle of the utility model is as follows: the water guide valve 305 is installed in the channel of the auxiliary water supply interface 301, the valve knob 306 is sleeved on the outer side of the auxiliary water supply interface 301, and the water guide valve 305 and the valve knob 306 are connected together by a connecting piece 8. Since the auxiliary water supply interface 301 is provided with an arc-shaped through groove 7, the valve knob 306 can drive the water guide valve 305 to rotate within the range of the arc-shaped through groove 7. When the water guide valve 305 rotates, the position between the first through hole 4 and the second through hole 5 will be changed. By controlling the overlap between the first through hole 4 and the second through hole 5, a large water flow can be achieved. With a small control, after the auxiliary water supply nut 302 is sleeved onto the auxiliary water supply interface 301, the interface positioning piece 303 is fixed to the lower end of the auxiliary water supply interface 301 to limit the auxiliary water supply nut 302 from coming out of the lower end of the auxiliary water supply interface 301, and the one-way valve 304 is fixedly installed to the bottom through hole position of the auxiliary water supply interface 301 with glue. The one-way valve 304 is made of silicone material, and the one-way valve 304 can prevent the liquid from flowing back. Finally, the lower end of the interface assembly 3 is inserted into the interface seat 2, and the auxiliary water supply nut 302 is rotated to make it threadedly connected with the top end of the interface seat 2 to complete the installation.

[0035] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. An endoscope auxiliary water supply structure, comprising an endoscope operating unit housing (1), characterized in that: An interface seat (2) is provided on the endoscope operating unit housing (1), and an interface assembly (3) is installed on the interface seat (2); The interface assembly (3) comprises an auxiliary water supply interface (301), an auxiliary water supply nut (302) and a one-way valve (304); the auxiliary water supply nut (302) is movably sleeved on the auxiliary water supply interface (301); the one-way valve (304) is fixedly arranged at the bottom end of the auxiliary water supply interface (301); the auxiliary water supply nut (302) is threadedly connected to the top end of the interface seat (2); after the connection, the lower end of the auxiliary water supply interface (301) and the one-way valve (304) are inserted into the interface seat (2).

2. The endoscope auxiliary water supply structure according to claim 1, characterized in that: The interface assembly (3) further comprises a water guide valve (305) and a valve knob (306); the water guide valve (305) is arranged in the auxiliary water supply interface (301); the valve knob (306) is sleeved on the auxiliary water supply interface (301); and a connecting assembly for driving the water guide valve (305) to rotate is arranged between the valve knob (306) and the water guide valve (305); The water guide valve (305) is provided with a first through hole (4) near the bottom end, the auxiliary water supply interface (301) is provided with a second through hole (5) corresponding to the first through hole (4), and the bottom end of the interface seat (2) is connected to an auxiliary water supply pipe (6).

3. The endoscope auxiliary water supply structure according to claim 2, characterized in that: The connection assembly comprises an arc-shaped through groove (7) provided on the auxiliary water supply interface (301), and a connecting member (8) installed between the valve knob (306) and the water guide valve (305), and the connecting member (8) is inserted into the arc-shaped through groove (7).

4. The auxiliary water supply structure for endoscope according to claim 1, characterized in that: The endoscope operating part housing (1) is provided with a countersunk groove (9) matching the interface seat (2); the bottom end of the interface seat (2) passes through the countersunk groove (9) and extends to the inner cavity of the endoscope operating part housing (1); and the bottom end of the interface seat (2) is fixedly connected to the interface seat nut (10).

5. The auxiliary water supply structure for endoscope according to claim 4, characterized in that: A key groove (11) is provided on the groove wall of the counterbore groove (9), and a limit key that matches the key groove (11) is provided on the interface seat (2).

6. The auxiliary water supply structure for endoscope according to claim 1, characterized in that: An auxiliary water supply cap (12) is sleeved on the upper end of the interface seat (2), and the auxiliary water supply cap (12) can rotate in the circumferential direction of the interface seat (2).

7. The auxiliary water supply structure for an endoscope according to claim 1, characterized in that: The interface assembly (3) further comprises an interface positioning member (303), wherein the interface positioning member (303) is fixedly arranged at the lower end of the secondary water supply interface (301) and restricts the secondary water supply nut (302) from escaping from the lower end of the secondary water supply interface (301), and the interface positioning member (303) is inserted into the interface seat (2).

8. The auxiliary water supply structure for an endoscope according to claim 7, characterized in that: A protrusion (13) is arranged on the bottom end of the interface positioning member (303), a notch (14) matching the protrusion (13) is opened on the top end of the interface seat (2), and the protrusion (13) is engaged with the notch (14).

9. The auxiliary water supply structure for endoscope according to claim 3, characterized in that: A sealing member is provided between the valve knob (306) and the secondary water supply interface (301).

10. An endoscope, characterized in that: The endoscope auxiliary water supply structure according to any one of claims 1 to 9 is applied.

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