CN209596368U

CN209596368U - A kind of endoscope structure

Info

Publication number: CN209596368U
Application number: CN201821838644.8U
Authority: CN
Inventors: 张一�; 陈劲松
Original assignee: Suzhou Xinguang Medical Technology Co Ltd
Current assignee: Xinguangwei Medical Technology Suzhou Co ltd
Priority date: 2018-11-09
Filing date: 2018-11-09
Publication date: 2019-11-08
Anticipated expiration: 2028-11-09

Abstract

The utility model discloses a kind of endoscope structures, apply the inner tube structure field in medical instruments, solves the technical issues of conducting wire abrasion of inner tube, its key points of the technical solution are that a kind of endoscope structure, including catheter body, the catheter body includes the woven tube mutually accepted, swan-neck and plastic catheter head；Traction fiber is equipped in the catheter body, which includes bunch section and protection section；The buckle passed through for the bunch section of traction fiber is equipped in the swan-neck；Bourdon tube is arranged at the protection section of the traction fiber.The technical effect having is the reduction of abrasion in pipe.

Description

A kind of endoscope structure

Technical field

The utility model relates to the inner tube structure technical fields in medical instruments, more particularly, to a kind of endoscope structure.

Background technique

At present ureteroscope be it is a kind of carried out in urinary tract in urinary system by special instrument diagnosis and disease treatment Endoscope, it is not required to make big notch in human body again, hence it is evident that and the damage to tissue is reduced, to accelerate body recovery, shortens the course for the treatment of, Curative effect is improved, is the important development on endoscopy, its application clinically changes ureter, renal plevis for a long time Kidney calices position be difficult to carry out macroscopic examination and upper urinary tract illness must the treatment of row open surgery traditional concept.That applies at present is defeated Urinary catheter mirror has two class of rigid ureteroscope and flexible ureteroscope, rigid ureteroscope have good directionality and convenient for operation, The advantages of inserting, there are the visuals field and operation blind area, although flexible ureteroscope can eliminate the visual field and operation blind area, still Mirror body is soft, and poor controllability, operating difficulties, learning cycle is long, and expensive, is easily damaged.

The Chinese patent of existing Publication No. CN1543907A discloses a kind of for upper urinary tract disease diagnosing and treating Minimally invasive scope, be by flexible mirror body end and hardness mirror body and its rear operation handle on control mirror body end bend The novel ureteroscope that the operation key of movement collectively forms.

Existing notification number is that the Chinese patent of CN105358038B discloses a kind of endoscope swan-neck.

Above-mentioned prior art, which has the following deficiencies: in swan-neck used by the endoscope, is provided with bending line, Bending line is metal wire, more sharp, thus bending line and light guide, as connecting touching when be easy to cause light guide or the conducting wire as leading Abrasion is isolated, to destroy internal structure.

Utility model content

The purpose of the utility model is to provide a kind of endoscope structures, its advantage is that reducing the conducting wire relative wear in pipe Amount.

The above-mentioned technical purpose of the utility model has the technical scheme that a kind of endoscope structure, Including catheter body, the catheter body includes the woven tube mutually accepted, swan-neck and plastic catheter head；The catheter body Interior to be equipped with traction fiber, which includes bunch section and protection section；

The buckle passed through for the bunch section of traction fiber is equipped in the swan-neck；

Bourdon tube is arranged at the protection section of the traction fiber.

Through the above technical solutions, catheter body is spliced using three parts assembling, wherein swan-neck is as main Warp architecture, when swan-neck bending, the bunch effect for being primarily due to buckle will be so that traction fiber can not significantly be swung, traction The swing of silk has obtained constraint and then for internal other light guide line or as the relative friction reduction of conducting wire, which is beam Line segment, by the immediate constraint of buckle, so that traction fiber is not easy to swing；In addition, the traction fiber at woven tube passes through spring Pipe wraps up, and the traction fiber outer wall sharpness after package reduces, for internal other light guide lines or as the relative friction of conducting wire subtracts It is few；Two ways combines, and reduces the relative wear amount of intraductal wire.

The utility model is further arranged to: the mounting groove for buckle insertion is equipped in the swan-neck, the buckle Two sides are extended with limit wing plate, and the swan-neck is wrapped with heat-shrinkable T bush.

Through the above technical solutions, mounting groove, for buckle insertion, the buckle after insertion is protruded from bending inside pipe wall, for Traction fiber is worn, and the heat-shrinkable T bush of outer wall package can compress buckle, and the traction fiber thus worn is relatively stable.

The utility model is further arranged to: the buckle is provided with several along the length direction of swan-neck.

Through the above technical solutions, multiple buckles thereby reduce traction so that the multistage position of traction fiber is limited The slack of the centre of silk, traction fiber have obtained preferable constraint.

The utility model is further arranged to: the inner and outer wall surface of the buckle is arcwall face.

Through the above technical solutions, buckle is projecting inward from swan-neck, but its inner and outer wall is still arcwall face, arcwall face For other light guide lines or as the relative friction of conducting wire is less.

The utility model is further arranged to: the inner wall of the swan-neck is provided with several retraction slots.

Through the above technical solutions, retraction slot may make that the bending property of swan-neck is further promoted, bending effect More preferably.

The utility model is further arranged to: the arc-shaped structure of retraction slot at the plastic catheter head, far from institute The retraction slot of plastic catheter head is stated in several font structures.

Through the above technical solutions, on the one hand the zigzag shape structure of protrusion can contact on heat-shrinkable T bush, work as swan-neck When bending, by the elastic shrinkage of heat-shrinkable T bush, enable to that there is very strong elasticity far from the swan-neck at plastic catheter head Restoring force, so that the state that the fast quick-recovery of swan-neck herein stretches, operability are higher.

The utility model is further arranged to: it is several right that retraction slot is uniformly arranged along the length direction of swan-neck, Mei Duishou Axial line central symmetry of the contracting slot about swan-neck.

Through the above technical solutions, the retraction slot of center symmetric setting makes each angle bending force of swan-neck more flat Weighing apparatus, swan-neck are more durable.

The utility model is further arranged to: being fixed between the woven tube, swan-neck and plastic catheter head using UV glue Connection.

Through the above technical solutions, good reliability high using fastness of the UV glue after fixed.

In conclusion the advantageous effects of the utility model are as follows:

1. having multi-segment structure, reduces traction fiber and contacted with the direct of interior other conducting wires is managed, reduce the relative wear of conducting wire Amount；

2. using buckle threading lead, multiple buckles constrain traction fiber, reduce the oscillating quantity of traction fiber.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the present embodiment；

Fig. 2 is the schematic diagram of internal structure of the present embodiment；

Fig. 3 is enlarged drawing at A in Fig. 2；

Fig. 4 is enlarged drawing at B in Fig. 2；

Fig. 5 is enlarged drawing at C in Fig. 2；

Fig. 6 is the structural schematic diagram of the buckle of the present embodiment.

Detailed description of the invention, 1, catheter body；2, woven tube；3, swan-neck；31, mounting groove；32, retraction slot；4, plastic catheter Head；5, traction fiber；51, bunch section；52, section is protected；6, it buckles；61, wing plate is limited；7, bourdon tube；8, heat-shrinkable T bush.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

It referring to Fig.1, is a kind of endoscope structure disclosed by the utility model, including catheter body 1, catheter body 1 include Mutually woven tube 2, swan-neck 3 and the plastic catheter head 4 successively accepted are fixedly connected between three by UV glue.

With reference to Fig. 2, Fig. 3, it is provided with traction fiber 5 in catheter body 1, is equipped with mounting groove 31 in swan-neck 3, in mounting groove 31 It is embedded with buckle 6, buckle 6 is arcwall face along the length direction inner and outer wall of swan-neck 3.Structure such as Fig. 6 of buckle 6, card The two sides of button 6 are extended with limit wing plate 61, and the limit wing plate 61 of two sides is pressed in the outer wall of swan-neck 3, and buckles 6 central structure It is embedded in mounting groove 31.Swan-neck 3 is wrapped with heat-shrinkable T bush 8, will buckle 6 compactings by heat-shrinkable T bush 8.Traction fiber 5 is from card It is passed through in button 6, to fit in the inner wall of swan-neck 3, the traction fiber 5 in the part swan-neck 3 is bunch section 51 (with reference to figure 5).The outer wall and inner wall of buckle 6 are arc.

With reference to Fig. 5, traction fiber 5 extends to woven tube 2 from swan-neck 3, and the traction fiber 5 in the part woven tube 2 is to protect Section 52 is protected, traction fiber 5 is wrapped with bourdon tube 7.The opposite outside diameter of bourdon tube 7 is thicker, while bourdon tube 7 has certain stretch Elasticity.When traction fiber 5 when pulled, on the one hand by 6 constraint of buckle, on the other hand protected by bourdon tube 7, traction fiber 5 with Other light guide lines or as the contact of conducting wire is less, the relative wear amount of generation is less, other light guide lines or as conducting wire is not easy to be cut It splits.

With reference to Fig. 3 and Fig. 4, several retraction slots 32 are equipped in swan-neck 3, wherein the retraction slot at plastic catheter head 4 32 arc-shaped structures, the retraction slot 32 far from plastic catheter head 4 are in several font structures；The effect of retraction slot 32 is to provide certain Bending Deformation space, so that the bending ability of swan-neck 3 is stronger.The retraction slot 32 of zigzag shape, corresponds to the zigzag shape of swan-neck 3 The zigzag shape structure of structure, protrusion can contact on heat-shrinkable T bush 8, when swan-neck 3 is bent, pass through the bullet of heat-shrinkable T bush 8 Property shrink, enable to that there is very strong elastic-restoring force far from the swan-neck 3 at plastic catheter head 4, so that bending herein The state that the fast quick-recovery of pipe 3 stretches.

In order to enable each side position of swan-neck 3 uniform force, such as Fig. 3, the length of retraction slot 32 along swan-neck 3 in bending It is several right that degree direction is uniformly arranged, and every a pair of retraction slot 32 is about the axial line central symmetry of swan-neck 3.

The embodiment of present embodiment is the preferred embodiment of the utility model, and not limitation is originally practical new according to this The protection scope of type, therefore: the equivalence changes that all structures, shape, principle according to the utility model are done should all be covered by practical Within novel protection scope.

Claims

1. a kind of endoscope structure, which is characterized in that including catheter body (1), the catheter body (1) includes mutually accepting Woven tube (2), swan-neck (3) and plastic catheter head (4)；Traction fiber (5) are equipped in the catheter body (1), the traction fiber (5) Including bunch section (51) and protection section (52)；

The buckle (6) passed through for the bunch section (51) of traction fiber (5) is equipped in the swan-neck (3)；

Bourdon tube (7) are arranged at the protection section (52) of the traction fiber (5).

2. a kind of endoscope structure according to claim 1, which is characterized in that be equipped in the swan-neck (3) for buckle (6) two sides of the mounting groove (31) being embedded in, the buckle (6) are extended with limit wing plate (61), and the swan-neck (3) is wrapped with Heat-shrinkable T bush (8).

3. a kind of endoscope structure according to claim 2, which is characterized in that length of the buckle (6) along swan-neck (3) Degree direction is provided with several.

4. a kind of endoscope structure according to claim 3, which is characterized in that the inner and outer wall table of the buckle (6) Face is arcwall face.

5. a kind of endoscope structure according to claim 1, which is characterized in that the inner wall of the swan-neck (3) is provided with Several retraction slots (32).

6. a kind of endoscope structure according to claim 5, which is characterized in that at the plastic catheter head (4) Retraction slot (32) arc-shaped structure, the retraction slot (32) far from the plastic catheter head (4) are in several font structures.

7. a kind of endoscope structure according to claim 6, which is characterized in that length of the retraction slot (32) along swan-neck (3) Degree direction is uniformly arranged several right, axial line central symmetry of each pair of retraction slot (32) about swan-neck (3).

8. a kind of endoscope structure according to claim 1, which is characterized in that the woven tube (2), swan-neck (3) and It is fixedly connected between plastic catheter head (4) using UV glue.