CN214157254U - One-way elastic deflection pipe - Google Patents
One-way elastic deflection pipe Download PDFInfo
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- CN214157254U CN214157254U CN202022264456.2U CN202022264456U CN214157254U CN 214157254 U CN214157254 U CN 214157254U CN 202022264456 U CN202022264456 U CN 202022264456U CN 214157254 U CN214157254 U CN 214157254U
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Abstract
The utility model discloses an one-way elasticity deflection pipe, it includes one-way elasticity pipe, one side surface of one-way elasticity pipe is equipped with a plurality of spiral elastic groove along its axial evenly spaced apart, spiral elastic groove is the narrow, the middle wide groove structure of the left and right sides. The flexible endoscope sheath is assisted to deflect by the elastic deflection pipe which deflects in one direction, so that the consistency of all positions of the flexible endoscope sheath in the deflection direction is improved, and the accuracy of controlling the deflection direction of the plastic flexible catheter is improved.
Description
Technical Field
The utility model relates to an endoscope technical field specifically indicates an one-way elasticity deflection pipe.
Background
With the development of minimally invasive treatment technology, endoscope technology has become an indispensable diagnosis and treatment means in some hospital departments due to the fact that accurate and intuitive diagnosis and a minimally invasive treatment method without opening a knife are more and more favored by doctors and patients. When a fiberscope or an electronic scope in an endoscope is used for observing in a human body, in order to realize the inspection in a larger range, the head of the catheter is generally allowed to deflect in a range allowed by a human organ, and the micro fiber or the lens of the electronic scope at the head of the catheter is driven to deflect, so that the shooting range of images in the body is enlarged. The guide tube of the endoscope is generally formed by plastic extrusion, the current guide tube bending adopts steel wire rope traction, and the guide tube bending driving mode comprises the following steps: an elastic plastic soft sheath and a steel wire rope; flexible steel snake bones and steel wire ropes, etc. The bending of the catheter in all directions is realized, but the arrangement of the cavity holes in the catheter is not uniform and standard due to the design requirement, when the catheter is driven to deflect by adopting a long flexible steel wire or other flexible parts, the catheter can generate deviation in other directions in the preset deflection direction, so that the deviation in the deflection direction, which is referred to as deviation in the industry, is caused, and the endoscope catheter cannot enter a corresponding organ to be observed when the deviation is too large or touches the organ inside a human body when the deviation is deflected, so that the adverse effect is caused to the operation process. At present, the control of the deflection of the catheter is generally to set a limit value in production, and if the deflection is out of tolerance in product inspection, rework processing is carried out as required until an endoscope product which can meet the requirement of the deflection limit value is processed. However, due to the material properties of the flexible guide tube, deviations of different degrees almost inevitably occur, which results in a decrease in the yield of the endoscope guide tube, a large number of rework situations, and even an uncorrectable situation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above-mentioned background art not enough, provide a can effectively rectify endoscope pipe the direction of deflecting, realize the radial 360 bending within ranges of pipe, and do not occupy the pipe inner chamber, the pipe effectively utilizes the sectional area big, is favorable to the one-way elasticity deflection pipe that the passageway was arranged.
In order to realize the purpose, the utility model discloses an one-way elasticity deflection pipe, its characterized in that: the elastic pipe comprises a one-way elastic pipe, wherein a plurality of spiral elastic grooves are uniformly arranged on the surface of one side of the one-way elastic pipe at intervals along the axial direction of the one-way elastic pipe, and each spiral elastic groove is of a groove structure with narrow left and right sides and wide middle.
Furthermore, the spiral elastic groove is enclosed by two spiral groove walls which are positioned at the front side and the rear side of the unidirectional elastic pipe in the axial direction and respectively comprises a first spiral groove wall and a second spiral groove wall.
Furthermore, the left end and the right end of the first spiral groove wall have length difference in the axial direction of the one-way elastic pipe; the left end and the right end of the second spiral groove wall have length difference in the axial direction of the one-way elastic pipe.
Furthermore, the left end and the right end of the first spiral groove wall are respectively connected with the left end and the right end of the second spiral groove wall, and the middle part of the first spiral groove wall and the middle part of the spiral groove wall are respectively arranged towards the front side and the rear side of the unidirectional elastic pipe in the axial direction.
Furthermore, in order to make the surface of the unidirectional elastic tube and the spiral elastic groove smooth, the surface of the unidirectional elastic tube is coated with a protective coating or a protective sleeve is coaxially fixed on the unidirectional elastic tube, and the outer surface of the unidirectional elastic tube is fixedly attached to the inner surface of the protective sleeve.
The utility model has the advantages that:
1. the flexible endoscope sheath is assisted to deflect by the elastic deflection pipe which deflects in one direction, so that the consistency of all positions of the flexible endoscope sheath in the deflection direction is improved, and the accuracy of controlling the deflection direction of the plastic flexible catheter is improved;
2. by utilizing the structure and material characteristics of the elastic deflection tube, the soft sheath of the endoscope can accurately reset after the deflection traction force is cancelled, so that the self-resetting capability of the flexible catheter is improved;
3. the phenomena of offset reworking and scrapping of the endoscope soft sheath are reduced, the yield of products is improved, and the production cost is saved.
4. The endoscope soft sheath with the elastic deflection tube is simple in structure, easy to process and convenient to popularize.
Drawings
FIG. 1 is a perspective view of a unidirectional elastic deflection tube of the present invention;
FIG. 2 is a front view of the unidirectional elastic deflection tube of the present invention;
FIG. 3 is a right side view of the unidirectional elastic deflection tube of the present invention;
FIG. 4 is a rear view of the unidirectional elastic deflection tube of the present invention;
FIG. 5 is a perspective view of the flexible sheath of the endoscope with the unidirectional elastic deflection tube coaxially sleeved on the steering steel wire of the present invention;
FIG. 6 is a perspective view of the flexible sheath of the endoscope with the unidirectional elastic deflection tube coaxially disposed in the channel hole;
FIG. 7 is a front view of the unidirectional elastic deflection tube of the present invention coaxially disposed on the flexible sheath of the endoscope;
the endoscope comprises 1-a one-way elastic tube (1.1-a spiral elastic groove), 2-a first spiral groove wall, 3-a second spiral groove wall, 4-an endoscope soft sheath, 5-a steering steel wire and 6-an end cover.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
The unidirectional elastic deflection pipe shown in fig. 1 to 4 comprises a unidirectional elastic pipe 1, wherein a plurality of spiral elastic grooves 1.1 are uniformly arranged on one side surface of the unidirectional elastic pipe 1 along the axial direction at intervals, and the spiral elastic grooves 1.1 are groove structures with narrow left and right sides and wide middle parts: the one-way elastic pipe is characterized by being formed by two spiral groove walls which are positioned at the front side and the rear side of the one-way elastic pipe 1 in the axial direction and are respectively a first spiral groove wall 2 and a second spiral groove wall 3, wherein the left end and the right end of the first spiral groove wall 2 have length difference in the axial direction of the one-way elastic pipe 1; the left and right ends of the second spiral groove wall 3 have length difference in the axial direction of the unidirectional elastic tube 1. The two ends of the first spiral groove wall 2 are respectively connected with the two ends of the second spiral groove wall 3, and the middle part of the first spiral groove wall 2 and the middle part of the second spiral groove wall 3 are respectively arranged towards the axial front side and the axial rear side of the unidirectional elastic tube 1.
The surface of the unidirectional elastic tube 1 is coated with a protective coating or is coaxially fixed with a plastic protective sleeve, the outer surface of the unidirectional elastic tube 1 is fixedly attached to the inner surface of the plastic protective sleeve, and the plastic protective sleeve is provided with a corresponding groove at the spiral elastic groove 1.1. To ensure the opening part of the one-way elastic deflection pipe to be smooth.
As shown in fig. 5, the steering steel wire 5 is coaxially sleeved with the unidirectional elastic tube 1, and when the steering steel wire 5 deflects, the unidirectional accurate deflection of the endoscope soft sheath 4 can be realized.
As shown in fig. 6, the one-way elastic tube 1 is coaxially arranged in the channel hole, and when the steering steel wire 5 deflects, the one-way accurate deflection of the endoscope soft sheath 4 can be realized.
As shown in fig. 7, the flexible sheath 4 of the endoscope is coaxially sleeved with the unidirectional elastic tube 1, and when the steering steel wire 5 deflects, the unidirectional accurate deflection of the flexible sheath 4 of the endoscope can be realized.
The utility model discloses can be under the prerequisite that does not change original endoscope catheter structure, increase the directional elasticity deflection pipe of a control catheter direction of deflection on original catheter structure's basis, elasticity deflection pipe can be that elastic plastic or metal make, elasticity deflection pipe is more easily taken place crooked or warp towards open-ended one side, do not open one side difficult deformation, spiral elasticity recess 1.1 has very strong answer ability, and elasticity deflection pipe has elasticity, thereby this elasticity can make this device reset drive catheter and reset.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the structure of the present invention in any way. Any simple modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention all still fall within the scope of the technical solution of the present invention.
Claims (6)
1. A unidirectional resilient deflection tube, characterized by: the elastic pipe comprises a one-way elastic pipe (1), wherein a plurality of spiral elastic grooves (1.1) are uniformly arranged on one side surface of the one-way elastic pipe (1) at intervals along the axial direction of the one-way elastic pipe, and the spiral elastic grooves (1.1) are of a groove structure with narrow left and right sides and wide middle.
2. A unidirectional resilient deflection tube as set forth in claim 1, wherein: the spiral elastic groove (1.1) is formed by two spiral groove walls which are positioned at the front side and the rear side of the unidirectional elastic pipe (1) in the axial direction and are respectively a first spiral groove wall (2) and a second spiral groove wall (3).
3. A unidirectional resilient deflection tube as set forth in claim 2, wherein: the left end and the right end of the first spiral groove wall (2) have length difference in the axial direction of the unidirectional elastic pipe (1); the left end and the right end of the second spiral groove wall (3) have length difference in the axial direction of the unidirectional elastic pipe (1).
4. A unidirectional resilient deflection tube as set forth in claim 3, wherein: the left end and the right end of the first spiral groove wall (2) are respectively connected with the left end and the right end of the second spiral groove wall (3), and the middle part of the first spiral groove wall (2) and the middle part of the second spiral groove wall (3) are respectively arranged towards the axial front side and the axial rear side of the one-way elastic pipe (1).
5. A unidirectional resilient deflection tube as set forth in claim 1, wherein: the surface of the one-way elastic tube (1) is coated with a protective coating.
6. A unidirectional resilient deflection tube as set forth in claim 1, wherein: a protective sleeve is coaxially fixed on the unidirectional elastic tube (1), and the outer surface of the unidirectional elastic tube (1) is fixedly attached to the inner surface of the protective sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022264456.2U CN214157254U (en) | 2020-10-12 | 2020-10-12 | One-way elastic deflection pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022264456.2U CN214157254U (en) | 2020-10-12 | 2020-10-12 | One-way elastic deflection pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214157254U true CN214157254U (en) | 2021-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022264456.2U Active CN214157254U (en) | 2020-10-12 | 2020-10-12 | One-way elastic deflection pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214157254U (en) |
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2020
- 2020-10-12 CN CN202022264456.2U patent/CN214157254U/en active Active
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