CN213488726U

CN213488726U - Integrated uretero-nephroscope

Info

Publication number: CN213488726U
Application number: CN202021239959.8U
Authority: CN
Inventors: 俞国良; 刘春晓; 华立芳; 王磊; 蔺海
Original assignee: HANGZHOU HAWK OPTICAL ELECTRONIC INSTRUMENTS CO Ltd
Current assignee: HANGZHOU HAWK OPTICAL ELECTRONIC INSTRUMENTS CO Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-06-22
Anticipated expiration: 2030-06-30

Abstract

The utility model relates to an endoscope. Integral type uretero-renoscope, including head flexible main part mirror, hard mirror sheath has been cup jointed to detachable outside the main part mirror, be equipped with soft mirror sheath connecting piece and main part mirror connecting piece on hard mirror sheath, soft mirror sheath has been cup jointed through soft mirror sheath connecting piece detachable outside hard mirror sheath, be equipped with the mounting on the soft mirror sheath, the mounting is connected with the cooperation of soft mirror sheath connecting piece, soft mirror sheath can also select to be connected with negative pressure mirror sheath through the mounting, be equipped with on the negative pressure mirror sheath with mounting complex soft mirror sheath connecting piece, the other end of negative pressure mirror sheath is equipped with the connector with main part mirror connecting piece complex. The utility model provides an integrated uretero-renoscope which has the advantages of convenient conversion between a soft lens and a hard lens, large selection space, good universality and integration of the soft lens and the hard lens; the ureteroscope solves the technical problems that a soft endoscope and a hard endoscope of the ureteroscope in the prior art cannot be converted for use, are poor in universality and can only be selectively used.

Description

Integrated uretero-nephroscope

Technical Field

The utility model relates to an endoscope especially relates to integral type uretero-nephroscope.

Background

In recent years, water pollution is becoming more serious, and urinary system diseases are increasing. Among the various diseases in urinary surgery, urinary calculi are common and frequently encountered diseases, especially upper urinary calculi (renal and ureteral calculi). The upper urinary tract calculus is mostly calcium oxalate calculus, and is better developed in adult groups of 20-50 years old. After the disease occurs, the patient can have symptoms of hematuria and pain, the daily life and the work can be affected to different degrees, and the physical health of the patient is seriously threatened. Statistics show that urinary calculus disease patients account for about 5% -15% of the world population.

At present, percutaneous nephrolithotomy (PCNL), External Shock Wave Lithotripsy (ESWL) and flexible ureteroscopy (FLEX-URS) jointly form three modern treatment methods in the aspect of treating upper urinary tract calculus, so that open surgery which is extremely harmful to human bodies is avoided for more than 90% of nephrolithotomy patients. In the above-mentioned operation, an electronic endoscope is generally used for the auxiliary operation, and an endoscope used in the urinary system is classified into a rigid ureteroscope and a flexible ureteroscope according to the condition of a tube. The flexible ureteroscope and the rigid ureteroscope have the advantages that the flexible ureteroscope can be bent, the adaptability to complicated urethra is good, but a bending rubber is easy to damage, and the thin plastic forceps tube is burnt by holmium laser and poked by a guide wire and a stone sleeve; due to the structural limitations of ultra-fine and ultra-long, the bending traction system design approaches the mechanical strength limit. When the device works, the operation is slightly improper, and the steel wire is damaged quickly. The hard ureteroscope is convenient to insert and simple to operate. The rigid ureteroscope generally adopts an optical imaging system, such as a glass rod system or an image transmission bundle made of glass wires, and is easy to break and damage in use because the ureteroscope body inserted by the rigid ureteroscope is too thin and long, has poor rigidity and is easy to bend.

Disclosure of Invention

The utility model provides an integrated uretero-renoscope which has the advantages of convenient conversion between a soft lens and a hard lens, large selection space, good universality and integration of the soft lens and the hard lens; the ureteroscope solves the technical problems that a soft endoscope and a hard endoscope of the ureteroscope in the prior art cannot be converted for use, are poor in universality and can only be selectively used.

The above technical problem of the present invention is solved by the following technical solutions: integral type uretero-renoscope, including head flexible main part mirror, hard mirror sheath has been cup jointed to detachable outside the main part mirror, be equipped with soft mirror sheath connecting piece and main part mirror connecting piece on hard mirror sheath, soft mirror sheath has been cup jointed through soft mirror sheath connecting piece detachable outside hard mirror sheath, be equipped with the mounting on the soft mirror sheath, the mounting is connected with the cooperation of soft mirror sheath connecting piece, soft mirror sheath can also select to be connected with negative pressure mirror sheath through the mounting, be equipped with on the negative pressure mirror sheath with mounting complex soft mirror sheath connecting piece, the other end of negative pressure mirror sheath is equipped with the connector with main part mirror connecting piece complex. The main endoscope, the rigid endoscope sheath, the soft endoscope sheath and the negative pressure endoscope sheath can all realize different connection modes according to selection. When the endoscope is inserted into a human body, the rigid sheath is inserted into the soft sheath to be matched; then the main body endoscope is inserted into the matched rigid endoscope sheath; after the matching body is inserted into the human body cavity, the soft endoscope sheath connecting piece on the hard endoscope sheath is loosened, the hard endoscope sheath and the main body endoscope are drawn out together, the soft endoscope sheath is left in the human body cavity, then the negative pressure endoscope sheath is matched with the soft endoscope sheath, and the main body endoscope is inserted into the connector; the bending examination of the main body mirror and the soft mirror sheath in the renal calyx is realized by operating the handle; the instrument is inserted from the instrument channel of the main body scope to realize the purpose of operation or lithotripsy; and the flushing and the stone suction collection after the crushed stones are realized through the connection of the negative pressure endoscope sheath and the negative pressure equipment and the back-and-forth insertion of the main body endoscope. A water flow and lithotripsy channel is provided in the soft lens sheath. The uretero-renoscope of the utility model has the advantages of both soft and hard scopes, and can be quickly inserted and positioned by the hard scope sheath when being inserted, so as to be used as a hard scope; then the hard endoscope sheath is taken down, the soft endoscope characteristic of the soft sheath body is utilized, the endoscope can be deeply inserted into the calyx of the kidney for multi-angle observation, the endoscope is suitable for complex channels in the calyx of the kidney, and the stone and the gravels are convenient to find.

Preferably, the flexible sheath connecting piece is a nut, and the fixing piece is a screw rod matched with the nut. Simple structure and convenient matching.

Preferably, the main body mirror connecting piece comprises a clamping groove and an elastic locking buckle. The connection is convenient, and the assembly and disassembly are convenient.

Preferably, the main body mirror comprises a front end part, a bending part, an insertion part and an operation part which are sequentially connected, an instrument channel is arranged in the main body mirror, and the operation part drives the bending part to bend through an operation handle. The instrument channel can be used for operating instruments to realize the operations of lithotripsy of the uretero-nephroscope and the like.

Preferably, the negative pressure sheath is T-shaped, one end of the horizontal section of the negative pressure sheath is provided with a flexible sheath connecting piece, the other end of the horizontal section is provided with a connector, and the vertical section of the negative pressure sheath is provided with a negative pressure pressing opening. The structure of the negative pressure endoscope sheath is similar to a three-way structure. The horizontal section is used for connecting the soft endoscope sheath and the main endoscope, and the vertical section is used for connecting the negative pressure equipment to complete flushing and suction and collection after lithotripsy.

Preferably, the connector is an elastic rubber cap, the bending part of the main endoscope is inserted into the connector and penetrates through the negative pressure endoscope sheath to be connected in the soft endoscope sheath in a penetrating manner. The elastic rubber cap can realize the positioning of the main body mirror, so that the main body mirror is conveniently connected with the negative pressure mirror sheath.

Preferably, the length of the main body endoscope is larger than that of the hard endoscope sheath, and the length of the hard endoscope sheath is larger than that of the soft endoscope sheath. The main body endoscope is inserted into the hard endoscope sheath, the length of the main body endoscope is basically the same as that of the hard endoscope sheath, the hard endoscope sheath can completely cover the main body endoscope when the main body endoscope is inserted, so that the whole main body endoscope can be stretched into a human body, the soft endoscope sheath is positioned outside the hard endoscope sheath, the main body endoscope can be directly brought into the human body through the support of the hard endoscope sheath, the soft endoscope sheath is shorter, the hard endoscope sheath is convenient to leave an operation space, the soft endoscope sheath and the hard endoscope sheath are detached, and then the negative pressure endoscope sheath is installed.

Therefore, the utility model discloses an integral type uretero-nephroscope possesses following advantage: simple structure through setting up soft mirror sheath and rigid mirror sheath, selects different mirror sheath cooperations in different stages, can have the advantage of soft mirror and rigid mirror concurrently, selects the space big, and the insertibility chamber is looked for stone, rubble convenience, and the negative pressure is got the stone and is effectual.

Drawings

FIG. 1 is a schematic drawing of an integrated uretero-nephroscope with parts disassembled.

Fig. 2 is an enlarged view of the negative pressure sheath of fig. 1.

Fig. 3 is a schematic view of the body mirror 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, the integrated uretero-nephroscope includes a main body scope including a distal end portion 13, a bending portion 14, an insertion portion 16, and an operation portion 7 connected in this order. The distal end portion 13, the bending portion 14, and the insertion portion 16 constitute a portion of the scope tube 3, an instrument channel 15 is disposed in the scope tube 3, and an entrance of the instrument channel 15 is opened in the insertion portion 16. The curved portion 14 is formed of a serpentine structure, and a lens or the like is attached to the distal end portion 13. The handle 8 on the rotary operation part 7 drives the bending part 14 to bend through the steel wire 17 (as shown in fig. 3). A connecting member 6 is provided at the junction of the insertion portion 16 and the bent portion 14. The outer of the tube 3 of the main body endoscope can be sleeved with a rigid endoscope sheath 2, and the length of the rigid endoscope sheath 2 is the same as that of the endoscope body 3. The end part of the rigid endoscope sheath 2 is provided with a main endoscope connecting piece 5 matched with the connecting piece, and the connecting structure of the main endoscope connecting piece 5 and the connecting piece 6 is as the Chinese patent applied by the applicant: the structure of the inner and outer sheath locking mechanism (CN 201220406150.9) for the electric excision mirror surgical instrument is the same, and the detailed description is omitted. A nut is fixed on the rigid sheath 2 to be used as a soft sheath connecting piece 4. The end part of the soft endoscope sheath is provided with a fixing part 9, the fixing part 9 is a screw rod matched with the nut, and the screw rod is inserted into the nut and locked to complete the connection of the hard endoscope sheath 2 and the soft endoscope sheath 1.

As shown in fig. 2, a negative pressure sheath 10 is arranged outside the soft sheath 1, and the negative pressure sheath 10 is T-shaped. One end of the horizontal section of the negative pressure sheath is provided with a soft sheath connecting piece 4, namely a nut structure, the other end of the horizontal section of the negative pressure sheath 10 is provided with an elastic rubber cap 11, and a through hole in the middle of the elastic rubber cap 11 can be used for the body of the main body endoscope to penetrate. The vertical section of the negative pressure sheath 10 is provided with a negative pressure pressing port 12.

When in use, the hard sheath is inserted into the soft sheath and is locked by the nut on the hard sheath; then the main body endoscope 1 with the bendable head end is inserted into the matched hard endoscope sheath to be locked for standby; after the matching body is inserted into a human body cavity, the nut on the rigid endoscope sheath is loosened, the rigid endoscope sheath and the head end bendable main body endoscope are drawn out together, the soft endoscope sheath is left in the human body cavity, then the negative pressure endoscope sheath is matched with the soft endoscope sheath, and after the negative pressure endoscope sheath is locked by the nut on the negative pressure endoscope sheath, the head end bendable main body endoscope is inserted into the elastic rubber cap hole; the bending examination in the calyx of the kidney is realized by operating a handle; the instrument is inserted from the instrument channel of the main body scope to realize the purpose of operation or lithotripsy; and the flushing and the stone suction collection after the crushed stones are realized through the connection of the negative pressure endoscope sheath and the negative pressure equipment and the back-and-forth insertion of the main body endoscope.

Claims

1. Integral type uretero-nephroscope, its characterized in that: including the flexible main part mirror of head, the rigid mirror sheath has been cup jointed to detachable outside the main part mirror, be equipped with soft mirror sheath connecting piece and main part mirror connecting piece on rigid mirror sheath, soft mirror sheath has been cup jointed through soft mirror sheath connecting piece detachable outside rigid mirror sheath, be equipped with the mounting on the soft mirror sheath, the mounting is connected with the cooperation of soft mirror sheath connecting piece, soft mirror sheath can also select to be connected with negative pressure mirror sheath through the mounting, be equipped with on the negative pressure mirror sheath with the soft mirror sheath connecting piece of mounting complex, the other end of negative pressure mirror sheath be equipped with main part mirror connecting piece complex connector.

2. The integrated uretero-nephroscope of claim 1, wherein: the flexible sheath connecting piece is a nut, and the fixing piece is a screw rod matched with the nut.

3. The integrated uretero-nephroscope according to claim 1 or 2, wherein: the main body mirror connecting piece comprises a clamping groove and an elastic locking buckle.

4. The integrated uretero-nephroscope according to claim 1 or 2, wherein: the main body mirror comprises a front end part, a bending part, an inserting part and an operating part which are sequentially connected, an instrument channel is arranged in the main body mirror, and the operating part drives the bending part to be bent through an operating handle.

5. The integrated uretero-nephroscope according to claim 1 or 2, wherein: the negative pressure sheath is T-shaped, one end of the horizontal section of the negative pressure sheath is provided with a flexible sheath connecting piece, the other end of the horizontal section is provided with a connector, and the vertical section of the negative pressure sheath is provided with a negative pressure pressing opening.

6. The integrated uretero-nephroscope according to claim 1 or 2, wherein: the connector is an elastic rubber cap, the bending part of the main body endoscope is inserted into the connector and penetrates through the negative pressure endoscope sheath to be connected in the soft endoscope sheath in a penetrating mode.

7. The integrated uretero-nephroscope according to claim 1 or 2, wherein: the length of the main body endoscope is larger than that of the hard endoscope sheath, and the length of the hard endoscope sheath is larger than that of the soft endoscope sheath.