CN109349984A - A kind of flexible gradual change formula endoscopic catheters with braided wires structure - Google Patents
A kind of flexible gradual change formula endoscopic catheters with braided wires structure Download PDFInfo
- Publication number
- CN109349984A CN109349984A CN201811329053.2A CN201811329053A CN109349984A CN 109349984 A CN109349984 A CN 109349984A CN 201811329053 A CN201811329053 A CN 201811329053A CN 109349984 A CN109349984 A CN 109349984A
- Authority
- CN
- China
- Prior art keywords
- tube body
- tube
- gradual change
- braided wires
- bottom tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/005—Flexible endoscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/0011—Manufacturing of endoscope parts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/307—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the urinary organs, e.g. urethroscopes, cystoscopes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
Abstract
The flexible gradual change formula endoscopic catheters with braided wires structure that the invention discloses a kind of, belong to medical instruments field, it includes tube body, the tube body is set as proximal end by one end of proximal operator, one end that the tube body protrudes into inside of human body is set as distal end, the tube body includes the braiding wrapping layer that bottom tube is set on the outside of the bottom tube with fitting, the tube body includes at least two segments with different hardness, and the bottom tube is integrally formed and the bottom tube of each segment is made of identical flexible deformable material.The present invention, which has, is not only able to satisfy rigidity requirement, but also has preferable flexibility, to avoid operation blind area, while also having preferable controllability, and the effect being not easily broken.
Description
Technical field
The present invention relates to the technical field of medical instrument, in particular in a kind of flexible gradual change formula with braided wires structure
Sight glass conduit.
Background technique
Ureteroscope is a kind of inner cavity for carrying out diagnosis and disease treatment in urinary tract in urinary system by special instrument
Mirror, it is not required to make big notch in human body again, hence it is evident that reduces the damage to tissue, to accelerate body recovery, shortens the course for the treatment of, mention
High curative effect is the important development on endoscopy.Its application clinically, changes ureter, renal plevis kidney for a long time
Small cup position is difficult to carry out macroscopic examination and upper urinary tract illness that the traditional concept of open surgery treatment must be carried out.
The ureteroscope applied at present has two class of rigid ureteroscope and flexible ureteroscope, and rigid ureteroscope has well
Directionality and the advantages of convenient for operating, inserting, but rigid conduit can not be bent, and there are the visuals field and operation blind area.It is soft
Although property ureteroscope can eliminate the visual field and operation blind area, conduit is soft, poor controllability, operating difficulties, and price is high
It is expensive, it is easily damaged.
Summary of the invention
The flexible gradual change formula endoscopic catheters with braided wires structure that the purpose of the present invention is to provide a kind of have both
The advantages of having both rigid conduit and soft conduit, while can be avoided the advantage of the two disadvantage again.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of flexible gradual change formula endoscopic catheters with braided wires structure, including tube body, the tube body depend on the one of proximal operator
End is set as proximal end, and one end that the tube body protrudes into inside of human body is set as distal end, and the tube body includes that bottom tube and fitting are set to institute
State the braiding wrapping layer on the outside of bottom tube, the tube body includes at least two segments with different hardness, the bottom tube one at
The type and bottom tube of each segment is made of identical flexible deformable material；
The hardness setting of multiple segments is in diminishing trend from tube body proximal end to body distal end.
By using above-mentioned technical proposal, it is biggish hard that the entire tube body of improvement is neutralized using the flexibility of braiding wrapping layer
Degree, so that tube body can either avoid the visual field and operation blind area, together convenient for being bent according to the construction of inside of human body diseased region
When be not susceptible to fracture again, controllability also with higher.Body distal end hardness is smaller simultaneously, can adapt to tube body and is located at human body
Successive bending deformation sequence when internal improves the tracing property of entire tube body and turns round control property, ensure that bending precision.
The present invention is further arranged to: the tube body further includes the casing made of nylon elastomer material, described sleeve pipe
Fitting is set to the outside of the braiding wrapping layer.
By using above-mentioned technical proposal, since nylon elastic material has good impact property under low-density low temperature,
Hardness and bending property can change in a big way, can effectively improve the mechanics transmitting stationarity of tube body.
The present invention is further arranged to: the braiding wrapping layer on multiple segments is compiled using identical or different litzendraht wire
It knits.
By using above-mentioned technical proposal, using conditions such as the strength of materials of braiding, the mode of braiding, the density of braiding
The toughness of control braiding wrapping layer, so that each segment has different hardness on tube body.
The present invention is further arranged to: the flexible deformable material is PTFE.
By using above-mentioned technical proposal, PTEF has excellent corrosion resistance and heat resistance, is typically used as serving as a contrast
In, then cooperate casing so that entire tube body backing layer both can anti-corrosion, high-low temperature resistant, shell again can pressure resistance, have enough strong
Degree and rigidity.
The present invention is further arranged to: positioned at the bottom tube end of the body distal end integrally formed with top guide, the top guide
On offer installation gap for connecting contrast apparatus；
Be arranged with reinforced joint identical with its shape outside the top guide, the reinforced joint towards tube body one end side wall along it
Axisymmetrical is provided with the traction fiber of control tube body bending degree.
By using above-mentioned technical proposal, contrast apparatus is installed in the installation gap of top guide, adjusts traction fiber
The bending degree of tube body is adjusted, it is convenient and efficient.
The present invention is further arranged to: described sleeve pipe is equipped with strengthening segment, the reinforced joint close to one end of reinforced joint
Part is embedded to strengthening segment, and the one end of the traction fiber far from reinforced joint is pierced by tube body from the wall thickness part of bottom tube, described
The length direction of traction fiber and the axis direction of bottom tube are parallel.
By using above-mentioned technical proposal, strengthening segment is able to ascend stability when body distal end connection contrast apparatus.
The present invention is further arranged to: the junction of the top guide and bottom tube is formed with positioning step, the reinforced joint
It is abutted against towards one end of tube body with the positioning step.
By using above-mentioned technical proposal, positioning step can facilitate installation reinforced joint, improve its installation effectiveness with
Precision.
The present invention is further arranged to: the distance between the upper surface of the traction fiber and the upper surface of the bottom tube are
0.02mm-0.04mm。
By using above-mentioned technical proposal, when involving traction fiber, since it can drive tube body to be bent at the first time,
So that the contrast apparatus of top guide end can quickly reach specified detecting location, efficiency is improved.It is drawn simultaneously in installation
When silk, it need to only slot on the surface of bottom tube, both facilitate processing, while bottom tube will not integrally be caused biggish broken
It is bad.
In conclusion the invention has the following advantages:
1. combining the toughness of braiding wrapping layer and the hardness of casing, tube body is enabled to be formed not from body distal end to tube body proximal end
With the segment of hardness, so that it avoids the visual field and operation blind area when carrying out operation observation into inside of human body, meet each
A segment is deformed according to different bending sequences and is not susceptible to the requirement to fracture, so that entire tube body is with preferable soft
Toughness, tracing property and torsion control property, and accurately it is bent precision；
2. by the setting of traction fiber the bending degree for changing tube body can be facilitated, to adapt to the structure of inside of human body diseased region
It makes；
3. can facilitate installation reinforced joint by the setting of positioning step, improve installation effectiveness.
Detailed description of the invention
Fig. 1 is in the present invention for embodying whole structural schematic diagram；
Fig. 2 is in the present invention for embodying whole cross-sectional view；
Fig. 3 is the portion the A enlarged drawing in Fig. 2, is closed for embodying the connection between reinforced joint, top guide, braiding wrapping layer and casing
It is schematic diagram；
Fig. 4 is along the schematic diagram of the section structure in the direction B-B in Fig. 2, and the connection relationship for embodying between traction fiber and bottom tube is shown
It is intended to;
Fig. 5 is in the present invention for embodying the structural schematic diagram after tube body is bent；
Fig. 6 is the minimum constituent unit schematic diagram of twill-weave " two lower rights are oblique on one " in the prior art；
Fig. 7 is the minimum constituent unit schematic diagram of twill-weave " lower right is oblique on three " in the prior art.
In figure, 1, tube body；11, soft section；12, changeover portion；13, handling section；2, tube body proximal end；3, wrapping layer is woven；4,
Casing；41, strengthening segment；5, bottom tube；51, top guide；511, installation gap；52, positioning step；53, crossed beam trunking；6, reinforced joint；
7, traction fiber；8, body distal end.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment:
As shown in Figure 1, being a kind of flexible gradual change formula endoscopic catheters with braided wires structure disclosed by the invention, including tube body
1, tube body 1 is defined as tube body proximal end 2 by one end of proximal operator, it is remote that one end that tube body 1 protrudes into inside of human body is defined as tube body
End 8.
As shown in Figures 2 and 3, tube body 1 is disposed with bottom tube 5, braiding wrapping layer 3 and casing 4 from the inside to the outside.Tube body 1 wraps
At least two segments with different hardness are included, each segment is made of identical flexible deformable material, and multiple segments
Hardness be sequentially reduced from tube body proximal end 2 to body distal end 8.
Wherein, bottom tube 5 is made of flexible deformable material, and in the present embodiment, which is polytetrafluoroethyl-ne
Suspension polymerisation polyflon can be selected in the tubular structure of alkene (PTFE), bottom tube 5, squeezes out and is integrally formed through extruder, bottom
Pipe 5 is with a thickness of 0.12mm-0.18mm, aperture 2.52cm-2.55cm.
The braid that identical or different material can be used in braiding wrapping layer 3 on multiple segments is entwined, and is utilized
The material of braiding, the mode of braiding, the condition of braiding thread count this three aspect, can control the toughness of corresponding braiding wrapping layer 3,
Weave wrapping layer 3 with a thickness of 0.025mm-0.03mm.Weave wrapping layer 3 braided wires can for SS304, SS304V, SS304L,
One or more of SS316, SS316L, preferably SS304V.1/2 ↗ can be used in weaving manner, and (two lower rights are oblique on i.e. one, ginseng
See Fig. 6) or the twill-weave structures such as 3/1 ↗ (lower right is oblique on three, referring to Fig. 7) type of weave, braiding thread count can be by
Pick glass is directly measured and is obtained, braiding thread count is bigger, then the flexibility for weaving wrapping layer 3 is better.
The casing 4 used in the present embodiment is made of nylon elastomer material, and internal diameter is along body distal end 8 towards tube body
The direction of proximal end 2 is gradually expanded, and inside diameter ranges, between 2.9cm-3.2cm, the pipe thickness of casing 4 is 0.1mm-
0.15mm。
As shown in figure 5, the segment quantity in the present embodiment is set as 3, along tube body proximal end 2 to the direction of body distal end 8
It is followed successively by handling section 13, changeover portion 12 and soft section 11.Soft section 11, changeover portion 12 and the triangular braiding longitude and latitude of handling section 13
Density is 6333 SA01 of Pebax, hardness range 35HSD- in 4 material of casing that trend is located at soft section 11 is gradually expanded
55HSD；4 material of casing at changeover portion 12 is 7233 SA01 of Pebax, hardness range 55HSD-82HSD；Positioned at hand
Holding 4 material of casing at section 13 is PA12, hardness range 82HSD-85HSD.Wherein, 6333 SA01, Pebax of Pebax
7233 SA01 materials are all made of the Pebax series of products manufactured by French A Kema, PA12 model PA12 EMS TR-
90。
As shown in Figures 2 and 3, it is equipped in casing 4 far from one end of tube body proximal end 2 and equally reinforces made of nylon elastomer
Section 41, the hardness of strengthening segment 41 are located between soft section 11 and changeover portion 12, and the material of strengthening segment 41 is Pebax in the present embodiment
5533 SA01, hardness 55HSD, and equally manufactured by French A Kema.Positioned at 5 end of bottom tube also one of body distal end 8
It is body formed have the identical top guide 51 of material is made with it, the installation gap 511 for connecting contrast apparatus is offered on top guide 51
(referring to Fig. 1), the contrast apparatus in the present embodiment are cmos image sensor.The outer diameter of top guide 51 is less than bottom tube connected to it
Internal diameter at 5 ports is formed with therebetween positioning step 52.Reinforcement identical with its shape is arranged with outside top guide 51 to connect
First 6, i.e., installation gap 511 is equally offered on reinforced joint 6, one end part of reinforced joint 6 is embedded in strengthening segment 41.By
It being frequently necessary to carry out replacement disassembly in contrast apparatus, reinforced joint 6 is made of stainless steel material, and preferably SS304V material,
To reinforce its rigidity, to be not susceptible to damage.
Since body distal end 8 gos deep into inside of human body, then when need to change 1 bending degree of tube body with change cmos image sensing
When the radiography angle of device, always to be bent in advance at body distal end 8.Therefore combine the casing 4 and difference flexibility of different hardness
Braiding wrapping layer 3, finally may make the hardness range of 13 three of soft section 11, changeover portion 12 and handling section to change from small to big, into
And meet tube body 1 by body distal end 8 to tube body proximal end 2 successively curved sequence requirement so that entire tube body 1 have it is preferable soft
Toughness, tracing property and torsion control property, and accurately it is bent precision.Entire tube body 1 is also not susceptible to roll in bending deformation simultaneously
It is disconnected, controllability with higher.
The hardness measuring method of each segment of tube body 1 is as follows:
Step 1: the test of equal length is successively intercepted from the segment of tube body 1 along tube body proximal end 2 to the direction of body distal end 8
Sample；
Step 2: the both ends of test sample are fixed, and the middle section of test sample is pulled using tensiometer, read value of thrust,
The more big hardness number for then corresponding to segment of value of thrust is bigger；
Step 3: the braiding material of 4 material of casing, braiding wrapping layer 3 that the size according to each segment value of thrust is included to it
Material, weaving method, braiding thread count are adjusted, so that the hardness of segment is along body distal end 8 to the direction of tube body proximal end 2
In diminishing trend；
Step 4: according to human organ simulation model, the simulation bend test of tube body 1 is carried out, according to the bending journey of different segment
Whether degree, which hinders human organ model and whether meet normal operation, requires, and finally obtains the optimal hardness value of each segment.
As shown in Fig. 2, reinforced joint 6 close to tube body 1 one end side wall along its axisymmetrical be provided with control tube body 1 it is curved
The traction fiber 7 of Qu Chengdu.When being performed the operation, tube body 1 and contrast apparatus can be held on machine, due to reinforced joint 6 and bottom
5 position of pipe is relatively fixed, pulls traction fiber 7 to the direction far from body distal end 8, can adjust to the bending degree of tube body 1
Section, it is convenient and efficient.Since traction fiber 7 need to be involved and be bent for a long time, therefore it is made material and equally selects stainless steel, and preferably
For SS304.If traction fiber 7 is connected with casing 4, since casing 4 is made of nylon elastomer material, and pullling traction fiber 7 makes pipe
Body 1 needs to drive by traction fiber 7 by means of power first when being bent, and traction fiber 7 can not reliably be connect with 4 surface of casing, be easy to happen
It falls off；If traction fiber 7 and the inner sidewall of bottom tube 5 (referring to Fig. 3) are fixed, equally existing can not be reliably connected with PTFE material realization
The shortcomings that, while can also be contacted with the signal wire of contrast apparatus, be easy to cause during 7 pull of traction fiber contrast apparatus with
Signal wire poor contact.
Therefore, traction fiber 7 can only be fixed with the lateral wall of reinforced joint 6, but traction fiber 7 again cannot be with braiding wrapping layer 3
It directly contacts, casing 4 is otherwise easily made to generate uneven phenomenon when forming, therefore as shown in figure 4, in bottom tube 5 along its length
Direction offers crossed beam trunking 53, and traction fiber 7 is embedded in crossed beam trunking 53, and one end extends tube body 1.And due to traction fiber 7
It is stainless steel with reinforced joint 6, in order to guarantee connection dependability, the two is fixed by way of welding.Finally recycle
Casing 4 is hidden, and contact it but also will not will not only with signal wire with human contact.The shape of traction fiber 7 be flat filament or by
The circle silk of several silk thread process uses flat filament in the present embodiment, and cross sectional dimensions specification is 0.08mm × 0.3mm, and traction fiber 7 is right
The hardness of entire tube body 1 influences negligible.
As shown in figure 4, when involving traction fiber 7, still needing to bottom tube 5 if crossed beam trunking 53 is opened in the wall thickness part of bottom tube 5
Upper surface and traction fiber 7 between part borrow power, tube body 1 can be driven to be bent, this just extend tube body 1 bending and lead
Draw silk 7 and involve the response time between acting, difficulty of processing is also larger.To avoid this problem, table of the crossed beam trunking 53 from bottom tube 5
Face starts to be recessed inwardly, while the upper surface of traction fiber 7 being set as flushing with the upper surface of bottom tube 5, to shorten above-mentioned sound
Between seasonable.Crossed beam trunking 53 can be milled by machine, can be also integrally formed when squeezing out with bottom tube 5, not only be facilitated processing, while also not
Whole to relatively thin bottom tube 5 it can cause biggish destruction.
When installing reinforced joint 6, traction fiber 7 is first fused to its side wall, then coats AB glue on its surface, be aligned its with
Reinforced joint 6 is inserted in leading by the position of installation gap 511 on top guide 51, while being directed at the position of traction fiber 7 Yu crossed beam trunking 53
First 51 outside.It is installed when reinforced joint 6 is abutted with positioning step 52, then traction fiber 7 is placed in crossed beam trunking 53.
Later again on the outside of the bottom tube 5 using braided material at the body distal end 8 establishment braiding wrapping layer 3, and while braiding
The bottom tube 5 for being covered with braiding wrapping layer 3 is input in extruder, is squeezed out nylon elastomer material using extruder, forms set
Pipe 4, and it is tightly coated on 3 outside of bottom tube 5 and braiding wrapping layer, it will finally be located at the nylon elastomer material at reinforced joint 6 again
Material excision.Compared to first traction fiber 7 is embedded to bottom tube 5, reprocessing braiding wrapping layer 3 and casing 4, welding is finally carried out again
For technique, the time of more than 1 installation and removal from mold, tooling of tube body has been saved, therefore has also simplified procedure of processing.
The open surgery that endoscopic catheters in the present invention can be used for ureter, renal plevis kidney calices position and upper urinary tract illness is controlled
It treats.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (8)
1. a kind of flexible gradual change formula endoscopic catheters with braided wires structure, including tube body (1), the tube body (1) is close to behaviour
One end of author is set as tube body proximal end (2), and one end that the tube body (1) protrudes into inside of human body is set as body distal end (8), feature
Be: the tube body (1) includes bottom tube (5) and fitting is set to braiding wrapping layer (3) on the outside of the bottom tube (5), the pipe
Body (1) includes at least two segments with different hardness, and the bottom tube (5) is integrally formed and the bottom tube of each segment
(5) it is made of identical flexible deformable material；
The hardness setting of multiple segments is in diminishing trend from tube body proximal end (2) to body distal end (8).
2. a kind of flexible gradual change formula endoscopic catheters with braided wires structure according to claim 1, it is characterised in that:
The tube body (1) further includes the casing made of nylon elastomer material (4), and described sleeve pipe (4) fitting is set to the braiding
The outside of wrapping layer (3).
3. a kind of flexible gradual change formula endoscopic catheters with braided wires structure according to claim 1, it is characterised in that:
Braiding wrapping layer (3) on multiple segments is formed using identical or different braid.
4. a kind of flexible gradual change formula endoscopic catheters with braided wires structure according to claim 1, it is characterised in that:
The flexible deformable material is PTFE.
5. a kind of flexible gradual change formula endoscopic catheters with braided wires structure according to claim 1, it is characterised in that:
Bottom tube (5) end positioned at the tube body (1) distal end is offered for connecting on the top guide (51) integrally formed with top guide (51)
Connect the installation gap (511) of contrast apparatus；
It is arranged with reinforced joint (6) identical with its shape outside the top guide (51), the reinforced joint (6) is towards tube body (1)
One end side wall along its axisymmetrical be provided with control tube body (1) bending degree traction fiber (7).
6. a kind of flexible gradual change formula endoscopic catheters with braided wires structure according to claim 5, it is characterised in that:
Described sleeve pipe (4) is equipped with strengthening segment (41) close to the one end of reinforced joint (6), and the reinforced joint (6) is partially embedded to reinforcement
In section (41), the traction fiber (7) is pierced by tube body (1), institute from the wall thickness part of bottom tube (5) far from the one end of reinforced joint (6)
The length direction for stating traction fiber (7) is parallel with the axis direction of bottom tube (5).
7. a kind of flexible gradual change formula endoscopic catheters with braided wires structure according to claim 5, it is characterised in that:
The junction of the top guide (51) and bottom tube (5) is formed with positioning step (52), and the reinforced joint (6) is towards tube body (1)
One end is abutted against with the positioning step (52).
8. a kind of flexible gradual change formula endoscopic catheters with braided wires structure according to claim 5, it is characterised in that:
The distance between upper surface and the upper surface of the bottom tube (5) of the traction fiber (7) are 0.02mm-0.04mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811329053.2A CN109349984A (en) | 2018-11-09 | 2018-11-09 | A kind of flexible gradual change formula endoscopic catheters with braided wires structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811329053.2A CN109349984A (en) | 2018-11-09 | 2018-11-09 | A kind of flexible gradual change formula endoscopic catheters with braided wires structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109349984A true CN109349984A (en) | 2019-02-19 |
Family
ID=65344532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811329053.2A Pending CN109349984A (en) | 2018-11-09 | 2018-11-09 | A kind of flexible gradual change formula endoscopic catheters with braided wires structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109349984A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110584744A (en) * | 2019-09-25 | 2019-12-20 | 广州迈景医学科技发展有限公司 | Suction catheter device |
| WO2021068421A1 (en) * | 2019-10-09 | 2021-04-15 | 上海加奇生物科技苏州有限公司 | Special catheter for thrombus aspiration from distal cerebral vessel |
| WO2021092781A1 (en) * | 2019-11-13 | 2021-05-20 | 苏州新光维医疗科技有限公司 | Endoscope structure |
| WO2021136289A1 (en) * | 2019-12-30 | 2021-07-08 | 湖南省华芯医疗器械有限公司 | Integrated composite pipe |
| WO2021175094A1 (en) * | 2020-03-04 | 2021-09-10 | 南微医学科技股份有限公司 | Catheter and endoscopic device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110251519A1 (en) * | 2010-04-09 | 2011-10-13 | Alexandre Romoscanu | Variable stiffness steering mechanism for catheters |
| CN102264428A (en) * | 2008-12-26 | 2011-11-30 | 住友电木株式会社 | Catheter |
| CN104548313A (en) * | 2013-10-09 | 2015-04-29 | 韦伯斯特生物官能(以色列)有限公司 | Catheter with cross-braided proximal section and helical-coiled distal end |
-
2018
- 2018-11-09 CN CN201811329053.2A patent/CN109349984A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102264428A (en) * | 2008-12-26 | 2011-11-30 | 住友电木株式会社 | Catheter |
| US20110251519A1 (en) * | 2010-04-09 | 2011-10-13 | Alexandre Romoscanu | Variable stiffness steering mechanism for catheters |
| CN104548313A (en) * | 2013-10-09 | 2015-04-29 | 韦伯斯特生物官能(以色列)有限公司 | Catheter with cross-braided proximal section and helical-coiled distal end |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110584744A (en) * | 2019-09-25 | 2019-12-20 | 广州迈景医学科技发展有限公司 | Suction catheter device |
| WO2021068421A1 (en) * | 2019-10-09 | 2021-04-15 | 上海加奇生物科技苏州有限公司 | Special catheter for thrombus aspiration from distal cerebral vessel |
| WO2021092781A1 (en) * | 2019-11-13 | 2021-05-20 | 苏州新光维医疗科技有限公司 | Endoscope structure |
| GB2605709A (en) * | 2019-11-13 | 2022-10-12 | Scivita Med Tech Co Ltd | Endoscope structure |
| WO2021136289A1 (en) * | 2019-12-30 | 2021-07-08 | 湖南省华芯医疗器械有限公司 | Integrated composite pipe |
| WO2021175094A1 (en) * | 2020-03-04 | 2021-09-10 | 南微医学科技股份有限公司 | Catheter and endoscopic device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109349984A (en) | A kind of flexible gradual change formula endoscopic catheters with braided wires structure | |
| US6398776B1 (en) | Tubular medical device | |
| US10058235B2 (en) | Steerable catheter | |
| US6814728B2 (en) | Endoscope having an operation wire | |
| US7311659B2 (en) | Endoscope shaft | |
| JP3775831B2 (en) | Catheter tube | |
| CN105559834A (en) | Diagnosis and treatment sheathing canal for endoscope | |
| WO2021232570A1 (en) | Guide sheath and method for using same | |
| CN212879241U (en) | Insertion tube and endoscope | |
| US20220047854A1 (en) | Balloon dilation device | |
| Tsukagoshi et al. | A self-propelled catheter capable of generating travelling waves with steering function by mono-line drive | |
| WO2019239545A1 (en) | Endoscope system and insertion part propulsion method | |
| JPH0928664A (en) | Catheter tube | |
| JPH10328306A (en) | Medical tube | |
| CN109938679B (en) | Endoscope with protective sleeve | |
| KR20090087464A (en) | New bending neck for transesophageal echocardiography (tee) probe | |
| CN218684314U (en) | Visual catheter | |
| CN114904121B (en) | Medical ingress pipe, guiding catheter device thereof and radial artery access catheter system | |
| CN112672671A (en) | Tube for endoscope and endoscope | |
| WO2021092781A1 (en) | Endoscope structure | |
| CN116035767A (en) | Medical instrument conveying sheath tube and conveying system for human body | |
| CN115089217A (en) | Water sac sheath tube for small ultrasonic probe and preparation method thereof | |
| WO2021075230A1 (en) | Medical instrument set and usage of same | |
| CN101803904A (en) | Integrated rigid ultrasonic cystoscope system | |
| WO2021075229A1 (en) | Bronchoscope and method for using same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Yi Inventor before: Zhang Yi Inventor before: Chen Jinsong |
|
| CB03 | Change of inventor or designer information | ||
| CB02 | Change of applicant information |
Address after: 215021 No. 8, Zhongtian lane, Suzhou Industrial Park, Jiangsu Province Applicant after: Xinguangwei medical technology (Suzhou) Co.,Ltd. Address before: 215021 No. 8, Zhongtian lane, Suzhou Industrial Park, Jiangsu Province Applicant before: SUZHOU XINGUANGWEI MEDICAL TECHNOLOGY Co.,Ltd. |
|
| CB02 | Change of applicant information |