CN212394867U

CN212394867U - Optical fiber locking mechanism of electrotomy endoscope

Info

Publication number: CN212394867U
Application number: CN202020237553.XU
Authority: CN
Inventors: 包国华; 张蔚飞; 孔晓晶
Original assignee: HANGZHOU HAWK OPTICAL ELECTRONIC INSTRUMENTS CO Ltd
Current assignee: HANGZHOU HAWK OPTICAL ELECTRONIC INSTRUMENTS CO Ltd
Priority date: 2020-03-02
Filing date: 2020-03-02
Publication date: 2021-01-26
Anticipated expiration: 2030-03-02

Abstract

The utility model relates to a medical endoscope especially relates to a lock optical fiber mechanism of electricity cutting endoscope. The utility model provides an electrotomy endoscope's lock optical fiber mechanism, includes endoscope seat and sheath tube seat, endoscope seat and sheath tube seat connect through being responsible for, cup jointed the slider on being responsible for, the slider on be equipped with sliding structure, be equipped with the pipe in the below of being responsible for, the sheath tube seat is stretched out to the one end of pipe, the other end of pipe is connected with through locking structure and supplies optical fiber male switching pipe, the axis coincidence of pipe and switching pipe. The utility model provides a fiber locking mechanism of an electrotomy endoscope, which has simple structure, the optical fiber is positioned outside the endoscope, the influence on the structure of the endoscope is small, and the mechanism can be independently operated; the technical problems that in the prior art, an optical fiber channel needs to be arranged in an endoscope tube, an optical fiber inlet needs to be designed at the handle end of the endoscope, and the optical fiber and the endoscope need to be synchronous are solved.

Description

Optical fiber locking mechanism of electrotomy endoscope

Technical Field

The utility model relates to a medical endoscope especially relates to a lock optical fiber mechanism of electricity cutting endoscope.

Background

At present, in the medical field, the examination, diagnosis and treatment of minimally invasive surgery are highly determined by the industry, wherein a medical endoscope is used as one of minimally invasive surgical instruments, can go deep into the body of a patient, can observe a focus part more intuitively, has accurate diagnosis result, has small damage to the human body, relieves the pain of the patient, and enables the patient to recover better and faster. The endoscope is mainly used in natural cavity and especially complex cavity surgery, such as bladder or biliary calculus surgery.

The electric cutting mirror is composed of a sheath tube, a plasma electrode arranged in the sheath tube, an endoscope arranged at the front end of the sheath tube, a working hand piece arranged at the rear end of the sheath tube and the like, and is a diagnosis and treatment device which is commonly used in clinic, especially in urinary surgery. After the resectoscope enters the operation area of a human body, the flexible handle on the operation hand piece is operated to push the plasma electrode inside the sheath tube to move back and forth, and the resectoscope ring at the top end of the plasma electrode performs operations such as cutting on a focus.

As in the Chinese patent: "an electrotomy mirror (CN 201620088375.2) that can protect endoscope camera lens", includes sheath pipe, plasma electrode, endoscope, work hand spare, be equipped with the elasticity handle that is used for back-and-forth movement plasma electrode on the work hand spare, the elasticity handle is the V-arrangement, the inboard of elasticity handle is equipped with apart from the inductor, the apart from the inductor passes through the wire and is connected with the host computer. When the electric cutting ring moves towards the endoscope, if the distance between the two sides of the elastic handle is too close, the electric cutting ring can automatically control the host machine through the lead, so that the plasma electrode is powered off, the temperature is rapidly reduced, and the risk that the lens of the endoscope is burnt is effectively avoided. However, there is no disclosure of a structure for attaching an optical fiber for illuminating an endoscope.

Disclosure of Invention

The utility model provides a fiber locking mechanism of an electrotomy endoscope, which has simple structure, the optical fiber is positioned outside the endoscope, the influence on the structure of the endoscope is small, and the mechanism can be independently operated; the technical problems that in the prior art, an optical fiber channel needs to be arranged in an endoscope tube, an optical fiber inlet needs to be designed at the handle end of the endoscope, and the optical fiber and the endoscope need to be synchronous are solved.

The above technical problem of the present invention is solved by the following technical solutions: the utility model provides an electrotomy endoscope's lock optical fiber mechanism, includes endoscope seat and sheath tube seat, endoscope seat and sheath tube seat connect through being responsible for, cup jointed the slider on being responsible for, the slider on be equipped with sliding structure, be equipped with the pipe in the below of being responsible for, the sheath tube seat is stretched out to the one end of pipe, the other end of pipe is connected with through locking structure and supplies optical fiber male switching pipe, the axis coincidence of pipe and switching pipe. The main tube is internally connected with an endoscope in a penetrating way, the tube is internally connected with an optical fiber in a penetrating way, and the optical fiber is led in by the adapter tube and then extends out from the end part of the tube. The sliding block is driven to axially move on the main pipe through the sliding structure, so that the optical fiber is driven to move. One end of the optical fiber is fixed through a locking structure, so that the optical fiber is prevented from moving.

Preferably, the locking structure comprises a connecting seat fixed with the sliding block, a conduction channel is arranged in the connecting seat and is perpendicular to the pipe, a rear cover is arranged at one end of the conduction channel, an end cover is arranged at the other end of the conduction channel, a pressing rod is arranged in the conduction channel, a communication hole is formed in the pressing rod, one end of the pressing rod is connected with the button, an elastic component is arranged at the other end of the pressing rod, and the elastic component is located between the pressing rod and the rear cover. The button is pressed to enable the communicating hole to connect the tube with the adapter tube, so that the optical fiber is guided into the tube through the adapter tube, after the guide is completed, the button is loosened, the elastic component in the conduction channel pushes the button outwards to the conduction channel by means of elasticity, the communicating hole, the tube and the adapter tube are staggered, and the optical fiber is clamped and fixed.

More preferably, a silicone tube is provided in the communicating hole. The silica gel tube has a large friction coefficient and a certain resistance to the optical fiber, so that the optical fiber is prevented from being loosened relative to the sliding block after being fixed, the purpose of locking is achieved, meanwhile, due to the soft characteristic of the silica gel tube, the surface of the optical fiber is prevented from being damaged by clamping, the elasticity is suitable, and the optical fiber is prevented from being broken.

Preferably, the part of the pipe, which is positioned outside the sliding block, is parallel to the main pipe, and the part of the pipe, which is positioned inside the sliding block, is connected with the adapter pipe in a downward inclination mode. The tube outside the sliding block is parallel to the main tube, so that the optical fiber is convenient to be matched with the endoscope tube of the endoscope, and the part inside the sliding block is inclined downwards, so that the sliding block is convenient to be connected with the adapter tube, and a sufficient operation space is reserved for inserting the optical fiber.

Preferably, the main tube is fixed with a catheter, the main tube is sequentially provided with an endoscope seat, a slide block, a sheath tube seat and a catheter, wherein the slide block can move along the main tube, the endoscope seat, the sheath tube seat and the catheter are fixed on the main tube, and a tube is inserted in the catheter. The pipe is supported and fixed by the guide pipe, and the structure is simple.

Preferably, the sheath tube seat is provided with a main tube through hole and a tube through hole, and an O-shaped sealing ring is arranged in the tube through hole. The pipe is inserted into the connector hole with the O-shaped ring and the nut, can slide, and the O-shaped ring and the nut act to ensure that the pipe is sealed when sliding.

Preferably, a supporting plate is arranged on one side of the sliding block, the pipe penetrates through the supporting plate and enters the sliding block, and the pipe is welded with the supporting plate. The main pipe is provided with a sliding block between the connector and the endoscope seat, the left end of the sliding block fixes the supporting plate on the sliding block through four screws, and the pipe is welded with the supporting plate to ensure that the pipe is fixed with the sliding block.

Preferably, the sliding structure comprises an inner rotating plate and an outer rotating plate which are hinged with each other, a torsion spring is arranged at the hinged position of the inner rotating plate and the outer rotating plate, the inner rotating plate is connected with the sliding block, and the outer rotating plate is connected with the endoscope seat. The automatic reset can be realized through the torsion of the torsion spring. Simple structure and convenient operation.

Preferably, the sheath tube seat is connected with a front handle, and the sliding block is connected with a rear handle.

Preferably, the end part of the adapter tube is provided with a sealing rubber cap seat, the sealing rubber cap seat is provided with an optical fiber inlet, a sealing rubber cap is sleeved outside the sealing rubber cap seat, and the sealing rubber cap is provided with an optical fiber hole. When the optical fiber is inserted, the sealing rubber cap can realize automatic sealing due to elasticity.

Therefore, the utility model discloses a lock optical fiber mechanism of electrotomy endoscope possesses following advantage: the structure is simple, the optical fiber is convenient to fix and stretch, and the silica gel tube can fix the optical fiber while ensuring that the optical fiber is not lost; the locking structure controls the fixation of the optical fiber, and the sliding block drives the optical fiber to move, so that the operation of the optical fiber is facilitated, and the illumination is provided for the endoscope.

Drawings

Fig. 1 is a front view of a fiber locking mechanism of an electrotomy endoscope of the present invention.

Fig. 2 is a sectional view of fig. 1.

Fig. 3 is an enlarged sectional view taken at a-a in fig. 1.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b):

as shown in fig. 1, 2 and 3, an optical fiber locking mechanism of an electrotomy endoscope comprises a main tube 2, an endoscope holder 12 fixed to one end of the main tube 2, and a sheath holder 4 fixed to the other end of the main tube 2. An endoscope lock 9 is fixed to the endoscope base 12 via a lock pin 11, and a front handle 5 is fixed to the sheath base 4. A slide block 6 is sleeved on the main pipe 2 between the endoscope seat 12 and the sheath tube seat 4, and the slide block 6 can slide on the main pipe 2 through a sliding structure. A rear handle 10 is fixed to the slider 6.

The sliding structure comprises an inner rotating plate 7 and an outer rotating plate 8 which are hinged with each other, a torsion spring 13 is arranged at the hinged position of the inner rotating plate 7 and the outer rotating plate 8, wherein the inner rotating plate 7 is connected with the sliding block 6, and the outer rotating plate 8 is connected with the endoscope seat 12.

A tube 1 is installed below a main tube 2, one end of the tube 1 is inserted into a guide tube 3 in front of a sheath tube base 4, and the guide tube 3 is welded below the main tube 2. An O-shaped ring 16 and a nut are arranged in a through hole of the sheath tube seat 4 which is connected with the tube 1 in a penetrating way, and the O-shaped ring 16 and the nut ensure that the tube is sealed when sliding. The other end of the tube 1 is fixed in the slide block 6, a support plate 15 is fixed at the front end of the slide block 6 through a screw, and the tube 1 is welded on the support plate 15. The part of the tube 1 located outside the slide 6 is parallel to the main tube 2, and the part of the tube 1 located inside the slide 6 is inclined. An adapter tube 14 is installed in the sliding block 6, one end of the adapter tube 14 is connected with the tube 1 through a locking structure, the other end of the adapter tube 14 is connected with a sealing rubber cap seat 17, a sealing rubber cap is installed on the sealing rubber cap seat 17, and the optical fiber is inserted into the tube 1 through a small hole in the sealing rubber cap and extends into a part needing illumination through the adapter tube 14.

The locking structure comprises a connecting seat 20 fixed with the sliding block 6, a conduction channel 22 is arranged in the connecting seat 20, the conduction channel 22 is perpendicular to the tube 1, a rear cover 21 is arranged at one end of the conduction channel 22, an end cover 19 is arranged at the other end of the conduction channel 22, a pressure lever 26 is arranged in the conduction channel 22, a communicating hole 24 is formed in the pressure lever 26, and a cylindrical silicone tube 25 is arranged in the communicating hole 24. One end of the plunger 26 is connected to the button 18, the button 18 is located in the end cap 19, and the outer surface of the button 18 in contact with the end cap 19 is sealed by an O-ring. The other end of the pressing rod 26 is provided with a spring 23, and the spring 23 is positioned between the pressing rod 26 and the rear cover 21. The press rod 26 is arranged in the connecting seat 20 through the end cover 19, the button 18 with the O-shaped ring (sealing) is screwed into the press rod 26, and after the press button 18 is pressed to the bottom, the communication hole 24 is aligned with the holes of the tube 1 and the adapter tube 14, so that the optical fiber can be inserted. The button 18 is loosened, the optical fiber is clamped by the elastic silicone tube 25 of the spring 23, the friction coefficient of the silicone tube 25 is large, the optical fiber has certain resistance, the rear handle is pushed to drive the optical fiber to move forward, and the optical fiber is not loosened relative to the sliding block. The purpose of locking is achieved, the characteristic of softness of the silicone tube is that the surface of the optical fiber is not damaged by clamping, the elasticity is suitable, and the optical fiber cannot be broken.

During operation, the front handle 5 and the rear handle 10 are held by hands, force is applied to pull the rear handle, the sliding block 6 is driven to move on the main pipe 2, the pipe 1 is driven to move, the optical fibers in the pipe 1 are fixed by the locking structure and move along with the pipe, and the part needing to be observed is reached.

Claims

1. The utility model provides a lock fiber mechanism of electrotomy endoscope, includes endoscope seat and sheath tube socket, its characterized in that: the endoscope seat is connected with the sheath tube seat through a main tube, a sliding block is sleeved on the main tube, a sliding structure is arranged on the sliding block, a tube is arranged below the main tube, one end of the tube extends out of the sheath tube seat, the other end of the tube is connected with a switching tube for inserting an optical fiber through a locking structure, and the axes of the tube and the switching tube are superposed; the main pipe is fixed with a catheter, the main pipe is sequentially provided with an endoscope seat, a sliding block, a sheath tube seat and a catheter, wherein the sliding block can move along the main pipe, the endoscope seat, the sheath tube seat and the catheter are fixed on the main pipe, and a catheter tube is inserted in the catheter.

2. The optical fiber locking mechanism of an resectoscope according to claim 1, wherein: the locking structure comprises a connecting seat fixed with the sliding block, a conduction channel is arranged in the connecting seat and is perpendicular to the pipe, a rear cover is arranged at one end of the conduction channel, an end cover is arranged at the other end of the conduction channel, a pressing rod is arranged in the conduction channel, a communication hole is formed in the pressing rod, one end of the pressing rod is connected with a button, an elastic part is arranged at the other end of the pressing rod, and the elastic part is located between the pressing rod and the rear cover.

3. The optical fiber locking mechanism of an resectoscope according to claim 2, wherein: and a silicone tube is arranged in the communicating hole.

4. The optical fiber locking mechanism of an resectoscope according to claim 1, 2 or 3, wherein: the part of the pipe, which is positioned outside the sliding block, is parallel to the main pipe, and the part of the pipe, which is positioned inside the sliding block, is downwards inclined and connected with the adapter pipe.

5. The optical fiber locking mechanism of an resectoscope according to claim 1, 2 or 3, wherein: the sheath tube seat is provided with a main tube through hole and a tube through hole, and an O-shaped sealing ring is arranged in the tube through hole.

6. The optical fiber locking mechanism of an resectoscope according to claim 1, 2 or 3, wherein: and a supporting plate is arranged on one side of the sliding block, the pipe penetrates through the supporting plate and enters the sliding block, and the pipe is welded with the supporting plate.

7. The optical fiber locking mechanism of an resectoscope according to claim 1, 2 or 3, wherein: the sliding structure comprises an inner rotating plate and an outer rotating plate which are hinged with each other, a torsional spring is arranged at the hinged position of the inner rotating plate and the outer rotating plate, the inner rotating plate is connected with the sliding block, and the outer rotating plate is connected with the endoscope seat.

8. The optical fiber locking mechanism of an resectoscope according to claim 1, 2 or 3, wherein: the sheath tube seat is connected with a front handle, and the sliding block is connected with a rear handle.

9. The optical fiber locking mechanism of an resectoscope according to claim 1, 2 or 3, wherein: the end of the adapter tube is provided with a sealing rubber cap seat, the sealing rubber cap seat is provided with an optical fiber inlet, a sealing rubber cap is sleeved outside the sealing rubber cap seat, and the sealing rubber cap is provided with an optical fiber hole.