CN207341741U - A kind of gradual change soft tube and insertion tube and endoscope with the pipe - Google Patents
A kind of gradual change soft tube and insertion tube and endoscope with the pipe Download PDFInfo
- Publication number
- CN207341741U CN207341741U CN201720043085.0U CN201720043085U CN207341741U CN 207341741 U CN207341741 U CN 207341741U CN 201720043085 U CN201720043085 U CN 201720043085U CN 207341741 U CN207341741 U CN 207341741U
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- Prior art keywords
- tube
- gradual change
- endoscope
- slit
- insertion tube
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Abstract
The utility model provides a kind of gradual change soft tube and insertion tube and endoscope with the pipe, which is metal tube, has spiral helicine slit on metal tube, the pitch of slit increases step by step from insertion end to non-intrusive end.By the spiral helicine slit of upper setting in metal tube, metal tube is set to bend.Further by the change of slit pitch, the hardness of the pipe is set in axial direction to change step by step.And the gradual change soft tube is simple in structure, shape is light and handy, easy to use, of low cost, can especially apply in disposable endoscope, should be widely promoted use.By insertion tube made from the gradual change soft tube, due to smaller in insertion end slit pitch, the softer flexible of insertion tube is preferable, and good guidance quality is provided for insertion tube；The pitch of non-intrusive end slit is larger, and insertion tube is harder, and good insertion can be provided for insertion tube.
Description
Technical field
The field of medical instrument technology is the utility model is related to, specifically, is a kind of gradual change soft tube and there is the pipe
Insertion tube and endoscope.
Background technology
With the development of science and technology, endoscope has been widely used in medical field, it is used in scrutineer's body
One of important tool of portion's organ.Found from 1806 so far, the development experience of endoscope following four stage：Hard pipe type is peeped
Mirror, half can bend the stages such as formula endoscope, fibrescope, ultrasound and fujinon electronic video endoscope.Now, the species of endoscope is broadly divided into
Hard pipe type endoscope and hose type endoscope.Hard pipe type endoscope intensity is high, and insertion property is good, but easily stabs inner wall, and
Since camera lens can not rotate, thus the relatively unambiguous operation of some lesions positions can only be done.It is indefinite for some lesions positions
Operation, it is necessary to constantly adjustment direction observation, therefore, it is necessary to use soft endoscope.However, this soft endoscope due to
Material is softer, it is difficult to provides enough insertions and radial dilatation for the insertion section of endoscope.The advantages of for both synthesis,
There are a variety of improved endoscopes at present.
For the insertion tube of endoscope, according to the needs used, it is necessary to which insertion end is softer, flexible is good, to be inserted into
When good guidance quality is provided, and avoid prick into human body's cavity wall；It is harder to also need to non-intrusive end, to provide preferable insertion
Property.Mostly in the prior art is that required flexible is provided by the crust of insertion tube.But if for a long time or repeatedly
Using the pipe portion, then crust is influenced easily to deteriorate with time change or by the medicament in cleaning, sterilizing.When crust with
When time change and deteriorating, in insertion end side (bending section side) and non-intrusive end side (hard portion side), the hardness of crust
All it is gradually reduced with intensity from original state.Hardness is lower, and insertion tube is more soft, has ultimately caused endoscope to body cavity interpolation
The insertion entered reduces.
Based on problems of the prior art, a kind of endoscope insertion is disclosed in documents 1 (CN1723835A)
The bendable portion and its manufacture method of pipe, the bendable portion are arranged in the far-end of the insertion tube of endoscope, including：It is multiple
Tube coupling, each tube coupling in the tube coupling have attachment device, which is engaged with the attachment device of adjacent tube coupling；With
And control line, the bending of bendable portion can be controlled using the control line；Each attachment device of wherein tube coupling is arranged to make
They from its face (being respectively 12 and 13) axially extended and be positioned in the shell of tube coupling, and it is outer make it that they are no more than
The thickness of shell, is provided with each face of adjacent tube coupling (being respectively 12 and 13) and is positioned to attachment device relative to each other
It is complimentary to one another in the mode that hinge type connects.Although the insert tube of endoscope obtained in such scheme can provide preferable radial direction
Dilatancy and flexible, but it is made of the linked set on multiple tube couplings and tube coupling, complicated, manufacture and installation
Difficulty, and the hardness and strength of insert tube of endoscope can not be made to realize gradual change, it is impossible to meet insertion tube while preferably
Insertion property and guidance quality.
A kind of alimentary canal novel endoscope is disclosed in documents 2 (CN202699097U), including shank, shank are divided into
Leading end portion and insertion section, the front end of leading end portion are equipped with scope, and the leading end portion is thinner, and outer wall surface undulate, can bend,
The thick section of grade that insertion section includes the transition of front end and is connected with transition, transition is from front to back by thin thicker；The shank
Crust be made of rubber.The utility model additionally provides a kind of alimentary canal novel endoscope, can be used as in upper digestive tract use
Mirror is checked, can also be used as lower digestive tract endoscopy, simple in structure, easy to use, is disappeared automatically additionally by existing
Malicious machine can be sterilized thoroughly, without worrying its sanitary condition；And leading end portion is designed as it is thin and soft, insertion section it is thick and
Firmly, the sense of discomfort of patient can be mitigated and improve success rate.Although hardness of the shank in the technical solution with gradual change is used
In the good guidance quality of offer and insertion property, but since the insertion section of insertion tube is except there is the instrument channel for supplying apparatus to pass through
Outside, camera and light source etc. are typically provided, it is necessary to larger diameter.Pass through the diameter of such a gradual change in the technical solution
To realize that the hardness of gradual change can cause the insertion pipe diameter at non-intrusive end excessive, it is unfavorable for being inserted into.
A kind of flexible tube of endoscope portion is also disclosed that in documents 3 (CN102958418A) and there is the flexibility pipe portion
Endoscope.The flexible pipe portion (25) of endoscope (12) has：Metallic coil (51)；Netted pipe (53), it covers above-mentioned gold
Belong to helix tube (51), and knitted by wire rod beam (533) obtained from forming beam to multiple wire rods (531) to be formed；Outside
Skin (55), it covers above-mentioned netted pipe (53)；And limiting unit (61), it limits the above-mentioned wire rod of above-mentioned netted pipe (53)
(531) movement.In the axial direction of above-mentioned netted pipe (53), the surface area of above-mentioned limiting unit (61) is relative to above-mentioned netted pipe
(53) ratio of surface area is different.The flexibility pipe portion can for a long time or Reusability, maintain independent of crust
Represent the flexible amplitude of variation of the characteristic of flexible pipe portion.But netted pipe wire rod as obtained from multiple wire rods form beam
Shu Jinhang is knitted and formed, its is complicated, makes difficult, production cost height.
Therefore it provides a kind of simple in structure, cost is low, and stability is good, guidance quality and insertion property it is all excellent gradual change it is soft
Manage and have the insertion tube of the pipe and endoscope to become this medical field technical problem urgently to be resolved hurrily.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of simple in structure, cost is low, and stability is good, guidance quality and
The all excellent gradual change soft tube of insertion property and insertion tube and endoscope with the pipe.
In order to solve the above technical problems, the utility model provides a kind of gradual change soft tube, which is metal tube, metal tube
Upper to have spiral helicine slit, the pitch of slit increases step by step from insertion end to non-intrusive end.
Further, there are one or more fins, fin extends along metal tube axial direction, in fin also in metal tube
Equipped with through hole, through hole can be used for wearing traction fiber.
Further, the quantity of fin is two or four.
Further, fin is symmetrically disposed in gradual change soft tube.
The utility model additionally provides a kind of endoscope-use insertion tube, including：
Above-mentioned gradual change soft tube；
The protective case being coated on gradual change soft tube.
Further, protective case is by one in polyvinyl chloride, polyurethane, block polyetheramides elastomer or polyamide
Kind or different materials are made.
The utility model additionally provides a kind of endoscope, including：
Above-mentioned insertion tube, control device and handle；
One or more traction fiber is equipped with insertion tube, traction fiber one end is fixedly connected with the insertion end of insertion tube, another
Hold and be connected with the control device being arranged on handle, for controlling insertion tube to bend.
In conclusion gradual change soft tube provided by the utility model, simple in structure, simple for production, shape is light and handy, user
Just it is, of low cost, it can especially apply in disposable endoscope, should be widely promoted use.It passes through in the upper of metal tube
Spiral helicine slit is set, metal tube is bent.Further by the change of slit pitch, make the hardness edge of the pipe
Axial direction changes step by step.It is slotting due to smaller in insertion end slit pitch by insertion tube made from the gradual change soft tube
It is preferable to enter the softer flexible of pipe, good guidance quality is provided for insertion tube；The pitch of non-intrusive end slit is larger, insertion tube
It is harder, good insertion can be provided for insertion tube.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description：
Fig. 1 is a kind of structure diagram of gradual change soft tube provided by the utility model；
Fig. 2 is the partial enlargement structural representation of the gradual change soft tube insertion end end face of Fig. 1；
Fig. 3 is the cross-sectional view of endoscope-use insertion tube provided by the utility model；
Fig. 4 is the structure diagram of endoscope provided by the utility model.
Element numbers are as follows：
1- insertion tubes
11- metal tubes
12- protective cases
13- slits
14- fins
15- through holes
2- handles
21- control devices
Embodiment
Presently in connection with attached drawing, the better embodiment of the utility model is discussed in detail.Although the description of the utility model will
Introduced together with reference to each embodiment, but this feature for not representing this utility model is only limitted to the several embodiments.Just
Just on the contrary, with reference to the purpose that embodiment makees utility model introduction being had to cover based on the claim of the utility model
The other selections or transformation that may extend.It will include and be permitted in order to provide the depth understanding to the utility model, in being described below
More concrete details.The utility model can not also be implemented using these details.In addition, in order to avoid this chaotic or fuzzy practicality
New emphasis, some details will be omitted in the de-scription.
" on ", " under ", "left", "right", " top ", " bottom ", are in order to preferably in addition, used in the following description
Describe the better embodiment of the utility model and set, should not be construed as the limitation to the utility model.
Close to sufferer in insertion end, that is, use described in the utility model, one end away from operating personnel, non-intrusive end is
Away from sufferer in use, close to one end of operating personnel.
As shown in Figure 1, the utility model provides a kind of gradual change soft tube, which is metal tube 11, is had on metal tube 11
There is spiral helicine slit 13, the pitch of slit 13 increases step by step from insertion end to non-intrusive end.By being set on metal tube 11
Spiral helicine slit 13, allows metal tube 11 to bend.Further by the change of 13 pitch of slit, make the hardness of the pipe
In axial direction change step by step.By insertion tube 1 made from the gradual change soft tube, due to smaller in 13 pitch of insertion end slit,
Therefore the softer flexible of insertion end of insertion tube 1 is preferable, and good guidance quality is provided for insertion tube 1；Non-intrusive end slit
13 pitch is larger, and the non-intrusive end of insertion tube 1 is harder, can be that insertion tube 1 provides good insertion.
Further, the pitch of slit 13 increases step by step from insertion end to non-intrusive end, can be between each screw thread
Pitch is different from, and pitch gradually increases from insertion end to non-intrusive end；Can also be that several adjacent screw threads are one group, they
Between pitch it is identical, the pitch between every group gradually increases from insertion end to non-intrusive end.
Although it is increased narrow step by step except through the pitch in the utility model that metal tube 11 is made gradual change soft tube
Seam 13, can also be by adjusting the width of helical form slit 13.Such as the slit 13 of 11 insertion end of metal tube is wider, non-intrusive end
Slit 13 it is relatively narrow, but this preparation method difficulty of processing is larger, can increase manufacture cost, and 13 width of insertion end slit
It is excessive, it may not be possible to which that preferable radial dilatation is provided.
Gradual change soft tube in the utility model can pass through industrial common cutting side in actual manufacturing process
Method, the spiral helicine slit 13 for penetrating tube wall, cutting process are cut out on intact 11 surface of metal tube by cutting tool
In can be that cutting tool remains stationary as, metal tube 11 is at the uniform velocity rotated and advanced；Either cutting tool at the uniform velocity advances, metal tube
11 the methods of at the uniform velocity rotating, it can cut out spiral helicine slit 13 on metal.Preparation process is simple, and cost is low, suitably
In large-scale commercial Application.
Further, 11 insertion end end view drawing of metal tube as shown in Figure 2, metal tube 11 is interior to have one or more fins
14, fin 14 extends along 11 axial direction of metal tube, and through hole 15 is additionally provided with fin 14, not special for the shape of through hole 15
Restriction, as long as through hole 15 can be used for wearing traction fiber, such as can be circular or ellipse.In journey is manufactured, have
The fin 14 of through hole 15 is integrally formed with metal tube 11, and then same cut out using cutting tool penetrates the spiral helicine narrow of tube wall
Seam 13, which also needs to penetrate fin 14, to ensure the flexible of metal tube 11.So place traction fiber when
The hole of multiple placement traction fibers need not additionally be rushed on the surface of metal tube 11 by waiting, and traction fiber can be directly placed to through hole 15
It is interior, simplify production technology.
Further, it is preferable to which the quantity of fin 14 is two, metal tube 11 towards two can be controlled when being equipped with traction fiber
A direction bending；Further preferably the quantity of fin 14 is four, by the cooperation between the tractive force of multiple directions, can make metal
Pipe 11 is bent towards multiple angles.
Further, it is preferable to fin 14 is symmetrically disposed in gradual change soft tube, i.e., with metal tube 11 in metal tube 11
Center line is axis, and the quantity of fin 14 corresponds to the quantity of the traction fiber wherein worn.When fin 14 is two, i.e., traction fiber is
Two, the insertion end of endoscope can be controlled to bend in the two directions, then pass through switching endoscope, it is ensured that observation
To all angles；When fin 14 is four, the insertion end of endoscope can be controlled to bend in any direction, without rotation
In the case of turning endoscope, any angle in cavity can also be observed that.
Further, in the preferred embodiment, traction fiber is preferably steel wire, but the utility model is not limited to
This, traction fiber can also be any filamentous structure, and filamentary structure can also select any metal or non-metallic material.
As shown in figure 3, the utility model additionally provides a kind of endoscope-use insertion tube 1, including：Above-mentioned gradual change is soft
Pipe；The protective case 12 being coated on gradual change soft tube.
There is no special restriction for the material of protective case 12, needed i.e. as long as disclosure satisfy that the use of endoscope insertion end
Can, it is preferably high molecular polymer, there is no particular limitation for specific type of polymer, can be selected from polyethylene, polypropylene etc.
It is polyolefin, polyvinyl chloride, polyester (PET, PBT etc.), polyamide, polyimides, polyurethane, polystyrene, makrolon, organic
Silicones, the composite material of fluoropolymer (PTFE, ETFE, PFA etc.) or these materials, latex rubber, silicone rubber, Buddhist nun
One or more in the various elastomeric materials such as imperial elastomer.
Further, protective case 12 is by preferably by selected from polyvinyl chloride, polyurethane, block polyetheramides elastomer or polyamides
One or more of materials in amine are made.
Pvc material biocompatibility is general, intensity and dilatancy are slightly good, but its hardness is higher, flexible compared with
Difference, it is impossible to need to curve according to cavity under human body temperature, having in insertion process or during later stage use can
Inner wall can be stabbed, the complication such as inflammation, hyperplasia may be triggered；Its biocompatibility of polyamide is preferable, but its water imbibition
Larger, under the interior environment of human body complexity, dimensional stability can be subject to a degree of influence；Its biocompatibility, intensity and
Radial dilatation is slightly worse than polyurethane.But both the cost of material is low, industrial application is wide, while also disclosure satisfy that endoscope
The use of insertion end needs.
Relative to other biological compatibility material, polyurethane has good warping property, Ke Yigen when running into human body temperature
Bent according to cavity situation, without stabbing injected organism tissue；Polyurethane is nontoxic, can be with Preserving time in human body, with injected organism tissue
With good compatibility, inflammation will not be triggered；Most of all, it is with good intensity and radial dilatation, there is provided
Preferable insertion intensity.Block polyetheramides elastomer (PEBAX), is free from the thermoplastic elastomer (TPE) of plasticizer, bio-compatible
Property is good, is extremely applicable in human body.It also has quite extensive hardness range and a good resilience, the performance of easy processing and
The property of polyamide product, has significant processing performance and biocompatibility, while has excellent compliance/soft (model
Enclose extensively, feel, sense of touch are good), good guidance quality and insertion intensity can be provided for insertion end；Block polyetheramides elastomer is steady
Qualitative good, change of properties very little, low temperature is non-sclerous；Corrosion-resistant and ageing-resistant ability is strong, though with this manufactured endoscope it is long when
Between place, structure will not change.
Gradual change soft tube is chiefly used in medical science, and the preferred embodiment of the utility model also provides one kind and contains this gradually
Become the endoscope of soft tube, the gradual change soft tube of the utility model can be applied to various need insertion property, guidance quality and radial direction
In expansionary warp architecture, it is applicable to need to carry out the tiny position in object or person body comprehensive observe and detection
Various endoscopes, such as industrial endoscope, medical endoscopes.
As shown in figure 4, the utility model provides a kind of endoscope, including：Above-mentioned insertion tube 1,21 and of control device
Handle 2；One or more traction fiber is equipped with insertion tube 1, traction fiber one end is fixedly connected with the insertion end of insertion tube 1, another
Hold and be connected with the control device 21 being arranged on handle 2, for controlling insertion tube 1 to bend.The insertion end of insertion tube 1, which is additionally provided with, to be taken the photograph
As conventional structures such as head and light sources, when applying external force in traction fiber by control device 21, the insertion of insertion tube 1 can be driven
End bending, so that insertion end can need to bend to required angle according to user, with the human body inner ring to the angle
Border is imaged, detected and is observed.
In conclusion gradual change soft tube provided by the utility model, simple in structure, it is simple for production.It passes through in metal tube
The spiral helicine slit of upper setting, metal tube is bent.Further by the change of slit pitch, make the hard of the pipe
Degree in axial direction changes step by step.And the gradual change soft tube is simple in structure, shape is light and handy, easy to use, of low cost, especially
Suitable for disposable endoscope, should be widely promoted use.And by insertion tube made from the gradual change soft tube, due to inserting
Enter to hold slit pitch smaller, therefore the softer flexible of insertion tube is preferable, and good guidance quality is provided for insertion tube；It is non-intrusive
The pitch of end slit is larger, and insertion tube hardness is higher, and good insertion can be provided for insertion tube.With this obtained endoscope
Also there is above-mentioned excellent technique effect.
Above-mentioned explanation is the embodiment of embodiment in the utility model, for being illustrated more clearly that this practicality is new
The utility model design of type, but it is not the restriction for the right to the utility model.It is new according to this practicality
The utility model design of type, those skilled in the art can easy variants and modifications the above embodiments, these belong to this practicality
Variants and modifications in new utility model design are all contained within the scope of the utility model appended claims.
Claims (7)
1. a kind of gradual change soft tube, it is characterised in that the pipe is metal tube, has spiral helicine slit, institute on the metal tube
The pitch for stating slit increases step by step from insertion end to non-intrusive end.
2. a kind of gradual change soft tube according to claim 1, it is characterised in that there is one or more in the metal tube
Fin, the fin extend along the metal tube axial direction, and through hole is additionally provided with the fin, and the through hole can be used for wearing
Traction fiber.
3. a kind of gradual change soft tube according to claim 2, it is characterised in that the quantity of the fin is two or four
It is a.
4. a kind of gradual change soft tube according to claim 3, it is characterised in that the fin is symmetrically disposed on the gradual change
In soft tube.
A kind of 5. insertion tube, it is characterised in that including：
Gradual change soft tube any one of claim 1-4；
The protective case being coated on the gradual change soft tube.
6. a kind of insertion tube according to claim 5, it is characterised in that the protective case is by selected from polyvinyl chloride, poly- ammonia
One or more of materials in ester, block polyetheramides elastomer or polyamide are made.
A kind of 7. endoscope, it is characterised in that including：
Insertion tube, control device and handle any one of claim 5-6；
One or more traction fiber is equipped with the insertion tube, described traction fiber one end is fixedly connected with the insertion end of insertion tube,
The other end is connected with the control device being arranged on the handle, for controlling the insertion tube to bend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720043085.0U CN207341741U (en) | 2017-01-13 | 2017-01-13 | A kind of gradual change soft tube and insertion tube and endoscope with the pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720043085.0U CN207341741U (en) | 2017-01-13 | 2017-01-13 | A kind of gradual change soft tube and insertion tube and endoscope with the pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207341741U true CN207341741U (en) | 2018-05-11 |
Family
ID=62361335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720043085.0U Expired - Fee Related CN207341741U (en) | 2017-01-13 | 2017-01-13 | A kind of gradual change soft tube and insertion tube and endoscope with the pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207341741U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110859587A (en) * | 2019-12-18 | 2020-03-06 | 上海澳华光电内窥镜有限公司 | Snake bone device for endoscope and endoscope |
| CN111359077A (en) * | 2020-03-16 | 2020-07-03 | 巴特勒生物科技(苏州)有限公司 | Sheath core with quick guide function used in blood vessel interventional operation |
| CN112367894A (en) * | 2018-05-15 | 2021-02-12 | 深圳市亚泰光电技术有限公司 | Endoscope steering adjusting method and endoscope |
-
2017
- 2017-01-13 CN CN201720043085.0U patent/CN207341741U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112367894A (en) * | 2018-05-15 | 2021-02-12 | 深圳市亚泰光电技术有限公司 | Endoscope steering adjusting method and endoscope |
| CN112367894B (en) * | 2018-05-15 | 2023-07-14 | 深圳市亚泰光电技术有限公司 | Endoscope steering adjustment method and endoscope |
| CN110859587A (en) * | 2019-12-18 | 2020-03-06 | 上海澳华光电内窥镜有限公司 | Snake bone device for endoscope and endoscope |
| CN110859587B (en) * | 2019-12-18 | 2022-03-11 | 上海澳华光电内窥镜有限公司 | Snake bone device for endoscope and endoscope |
| CN111359077A (en) * | 2020-03-16 | 2020-07-03 | 巴特勒生物科技(苏州)有限公司 | Sheath core with quick guide function used in blood vessel interventional operation |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180511 Termination date: 20210113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |