CN208741034U - Medical tube structure and corresponding endoscope - Google Patents
Medical tube structure and corresponding endoscope Download PDFInfo
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- CN208741034U CN208741034U CN201721624643.9U CN201721624643U CN208741034U CN 208741034 U CN208741034 U CN 208741034U CN 201721624643 U CN201721624643 U CN 201721624643U CN 208741034 U CN208741034 U CN 208741034U
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Abstract
The utility model relates to a kind of medical tube structures, including outer tube and the inner tube being sheathed in the outer tube, the cross-sectional configuration of at least part of inner tube is at the first circular arc, the second circular arc, the both ends of first circular arc and the second circular arc pass through the first special-shaped section respectively and are connected with the second special-shaped section, so that the cross section of at least part of inner tube has special-shaped closed channel.The utility model additionally provides a kind of endoscope.Using the medical tube structure and endoscope of the utility model, since the abnormity designs, outer tube can be set to the caliber of microchannel, realize that wound is small, few intercurrent disease；And the special-shaped section of inner tube makes tube body integrally and has biggish perfusion channel, perfusion rate is fast, and flushing liquor drainage is unobstructed, keeps endoscopic visual clear.
Description
Technical field
The utility model relates to medical instruments field, in particular to a kind of medical tube structure and corresponding endoscopes.
Background technique
In clinical operation, it is often necessary to pipe structure, such as endoscope or other situations for needing pipe structure.With
Some adjuvant treatments are carried out in insertion human body, application is extremely wide.It is illustrated, passes through by taking the endoscope that medicine kidney section uses as an example
Skin renal plevis mirror all brings the preferable treatment method of minimally invasive lithotripsy in treatment into urethra renal plevis mirror.Various developments in science and technology simultaneously
The matched rubble instrument of bring, if ultrasound lithotripter, laser fiber conduction thermal energy rubble are all the calculus exclusion in renal plevis kidney
Mode provides the minimally invasive therapeutic scheme of advanced multiple choices.The widely applied medical product hard pipe type of domestic and foreign current is percutaneous
The basic outer diameter of renal plevis mirror 24~30Fr, service aisle be 12Fr specification it is more universal, match 12Fr as ultrasound it is broken
Shi Yi, purpose are that the click explosion to calculus in kidney crushes, and exclude or attract by 12Fr pipeline to exclude along natural cavity.With
The raising of the experience of the progress of medicine and clinic, the openings of sizes and postoperative healing of the outer diameter thickness of percutaneous renal plevis mirror to body
There is close relationship, since the percutaneous renal plevis mirror of hard enters in renal plevis to by body surface opening, generates the big of postoperative wound
The small recovery for influencing wound, it is contemplated that infection of the openings of sizes to controlling the intracorporal pressure of renal plevis, reducing wound to the greatest extent.According to
The experience of many years of clinician and ultrasonic rubble bar are meeting output power, it is desirable to which the outer diameter of the percutaneous renal plevis mirror of hard meets 13
~15Fr outer diameter, service aisle meet again 2.8~3.3mm simultaneously, when ultrasonic horn enters channels operation, again can have it is reserved
The continuous perfusion of space progress physiological saline.
The biography image space formula of existing percutaneous renal plevis mirror has continued to use the mode that the continuous cylindrical mirror of rigid optical passes picture, each optical column
Metal spacer ring is needed to ensure that the spacing of optics cylindrical mirror reaches the requirement of the not core shift of image between mirror.Such design method is to optics
The central axis requirement of transmitting is very high, ensures the image of optics cylindrical mirror using the lumen of the optics cylindrical mirror of relative wall thickness in design
Transmitting, the design for the caliber for meeting service aisle again as built in internal optics mirror tube chamber are difficult to thin mirror.Furthermore optics
The design of cylindrical mirror is inevitably because the twisting or bending of the lumen of hard mirror, which be easy to cause the side of optics cylindrical mirror in lumen to split, causes art
The fuzzy or water inlet of middle image makes image that blooming occur.
Therefore, in addition to percutaneous renal plevis mirror, other endoscopes, such as endoscope body, hysteroscope, thoracoscope, thoracoscope,
Arthroscope, laparoscope or other types of hard mirror, also face above-mentioned technical problem.
Therefore it needs one kind can satisfy reduce patient trauma, restore that fast, the small quick healing of opening, to reduce operation concurrent
Disease such as bleeding, damage surrounding organ desirable product.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts provides a kind of big channel, draining or row
Calculus speed is fast, reduces the medical tube structure of postoperative complication and corresponding endoscope.
To achieve the goals above, the medical tube structure of the utility model and corresponding endoscope have following constitute:
The medical tube structure includes outer tube and the inner tube that is sheathed in the outer tube, at least part
Inner tube cross-sectional configuration at having the first circular arc, the second circular arc, the both ends point of first circular arc and the second circular arc
It is not connected by the first special-shaped section with the second special-shaped section, so that the cross section of at least part of inner tube has abnormity closing
Channel.
Preferably, the special-shaped closed channel includes instrument channel, close to the device of the described first special-shaped section
The edge in tool channel and the described first special-shaped section form the first perfusion channel, close to the device of the described second special-shaped section
The edge in tool channel and the described second special-shaped section form the second perfusion channel.
Preferably, first perfusion channel and the second perfusion channel is equal in magnitude.
Preferably, at least part of first circular arc and at least part of second circular arc are respectively adjacent to
The edge of the instrument channel is arranged, and first perfusion channel and the second perfusion channel is symmetrically disposed on the device
The two sides in tool channel.
Preferably, the area of the cross section of first perfusion channel and the second perfusion channel is set greater than respectively
1.13mm2；The diameter of the instrument channel between 2.8mm~3.3mm, the diameter of the outer tube between 4.29mm~
4.95mm。
Preferably, the diameter of the instrument channel is arranged to match the diameter of ultrasonic horn.
Preferably, the first special-shaped section and the second special-shaped section is respectively provided with the curve to the convex change of outer tube,
So that the size of the first perfusion channel and the second perfusion channel described in convex change extent control by the curve.
Preferably, the outer tube is additionally provided with light-guide fiber image bundles and light guide glass fibre except the inside of inner tube
Dimension.
Preferably, having the length of pipe section of the cross section of special-shaped closed channel to account for the inner tube in the inner tube
The 85%~90% of total length of pipe section, the inner tube further include the pipeline section with circular cross section.
The utility model additionally provides a kind of endoscope, and the endoscope includes the medical tube structure.
Preferably, the endoscope be endoscope body, hysteroscope, thoracoscope, renal plevis mirror, colonoscopy, nasal cavity ventriculoscope,
Bronchoscope or gastroscope.
Medical tube structure and corresponding endoscope using the utility model, since the abnormity designs, outer tube can
It is arranged to the caliber of microchannel, realizes that wound is small, few intercurrent disease；And the special-shaped section of inner tube makes tube body integrally have it is biggish
Perfusion channel, perfusion rate is fast, and flushing liquor drainage is unobstructed, keeps endoscopic visual clear.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the medical tube structure of the utility model.
Appended drawing reference:
1 outer tube
2 inner tubes
3 light guide glass fibers
4 light-guide fiber image bundles
5 instrument channels
6 first perfusion channels
7 second perfusion channels
8 first circular arcs
9 second circular arcs
10 first special-shaped sections
11 second special-shaped sections
Specific embodiment
In order to more clearly describe the technology contents of the utility model, carry out combined with specific embodiments below into one
The description of step.
As shown in Figure 1, the specific embodiment of the medical tube structure for the utility model, the medical tube structure packet
The inner tube 2 for including outer tube 1 and being sheathed in the outer tube 1, the cross-sectional configuration of at least part of inner tube 2 is at tool
There are the first circular arc 8, the second circular arc 9, the both ends of first circular arc 8 and the second circular arc 9 pass through the first 10 He of special-shaped section respectively
Second special-shaped section 11 is connected, so that the cross section of at least part of inner tube has special-shaped closed channel.
In a kind of preferable embodiment, the special-shaped closed channel includes instrument channel 5, close to described first
The edge of the instrument channel 5 of special-shaped section 10 and the described first special-shaped section form the first perfusion channel 6, close to described
The edge of the instrument channel 5 of second special-shaped section 11 and the described second special-shaped section 11 form the second perfusion channel 7.
In a kind of preferable embodiment, first perfusion channel 6 and the second perfusion channel 7 are equal in magnitude.
In a kind of preferable embodiment, at least part of first circular arc 8 and second circular arc 9
At least part is respectively adjacent to the edge setting of the instrument channel 5, and first perfusion channel 6 and the second perfusion is logical
Road 7 is symmetrically disposed on the two sides of the instrument channel 5.
In a kind of preferable embodiment, the area of the cross section of first perfusion channel and the second perfusion channel
It is arranged respectively to be greater than 1.13mm2；The diameter of the instrument channel is between 2.8mm~3.3mm, the diameter of the outer tube
Between 4.29mm~4.95mm.
In a kind of preferable embodiment, the diameter of the instrument channel 5 is arranged to match the diameter of ultrasonic horn.
The diameter of outer tube is arranged to 4.29mm~4.95mm, i.e. 13Fr~15Fr.
The diameter of the diameter matches ultrasonic horn of instrument channel and inner tube, the first perfusion channel and the second perfusion channel to the greatest extent may be used
The big setting of energy can pass through the size that the convex varied curve of special-shaped section controls the first perfusion channel and the second perfusion channel.
When the outer diameter of outer tube is designed to 15Fr, internal diameter is designed to 4.8mm, the proportionally inner tube of size design
After instrument channel is inserted into the ultrasonic horn of 3mm, two perfusion channels in left and right are naturally isolated, wherein
The area ≈ π (4.8/2) of the cross section of outer layer bore2≈18.1mm2；
The area ≈ 11.426mm of the cross section of inner tube2；
Sectional area=π (3/2) of ultrasonic horn2≈7.07mm2；
Residue controls two perfusion channels after being then inserted into ultrasonic horn
Approximate area=11.426-7.07 ≈ 4.356mm2；
And (1.2/2) 2 ≈ 1.13mm of π2<4.356/2mm2；
Therefore, it can show that the area of two perfusion channels in left and right will be respectively greater than internal diameter for 1.2mm circular hollow section product, relatively
There is biggish perfusion channel in the prior art.
In a kind of preferable embodiment, the described first special-shaped section 10 and the second special-shaped section 11 are respectively provided with to described
The convex change of outer tube 1 curve so that the first perfusion channel and second described in convex change extent control by the curve
The size of perfusion channel.
In a kind of preferable embodiment, the outer tube passes picture except the inside of inner tube is additionally provided with optical fiber
Beam 4 and light guide glass fiber 3.
Light-guide fiber image bundles (or the miniature biography that is internally provided with ultra dense degree of the outer tube of the utility model except inner tube
Sensor), space is saved and releases, while also solving the problems, such as that prior art image is unclear.
For example, the eyepiece portion of light-guide fiber image bundles percutaneous nephrolithy and telephotography buckle are closely chained, by light
On the light guide glass fiber in source and the guide-lighting interface rotary link of percutaneous nephrolithy.Light source switch and television camera are opened, is being passed through
The light beam inside pipe of the light guide bundles through kidney mirror that the front end of skin kidney mirror has enough light to pass through link is irradiated in front end, light guide
The image that the light irradiation of front end is received at the object lens of fiber video beam front end, is transferred to mesh by internal light-guide fiber image bundles
On sensor end face in the camera shooting buckle of mirror end link, the signal of sensor by electronic processors after photoelectric conversion,
The image of the objective end intake of percutaneous nephrolithy is shown on the video screen of link.Doctor, which passes through, on the tv screen to be shown
Image confirms that various conditions carry out the disposition of relevant minimally invasive medical.
For example, the rear end relay contacts mouth of electronic type percutaneous nephrolithy is closely linked with the data line for linking electron process
It above, will be on the light guide glass fiber of light source and the guide-lighting interface rotary link of percutaneous nephrolithy.Open the main switch and electricity of cold light source
The main switch of sub-processor has inside pipe of the light guide bundles through kidney mirror of the enough light by link in the front end of percutaneous nephrolithy
Light beam is irradiated in front end, is received front end signal at the object lens of microsensor front end, is received by internal sensor
Digital signal is reached electronic processors through data line through internal cable, the photoelectric conversion through electronic processors by optical signal
Afterwards, the image of the objective end intake of percutaneous nephrolithy is shown on the video screen of link.Doctor by showing on the tv screen
The image shown confirms that various conditions carry out the disposition of relevant minimally invasive medical.
Have the pipeline section of the cross section of special-shaped closed channel long in a kind of preferable embodiment, in the inner tube
Degree accounts for the 85%~90% of the total length of pipe section of the inner tube, and the inner tube further includes the pipe with circular cross section
Section.
For example, most (accounting 89%) of inner tube has the structure of abnormity；Inner tube rear end sub-fraction (accounting
About 11%) cross section is circular.
The medical tube structure of the utility model can be applied to endoscope, wherein endoscope can for endoscope body,
Thoracoscope, renal plevis mirror, nasal cavity ventriculoscope, hard anal intestine mirror or visual hysteroscope.
A kind of embodiment endoscope of the utility model when in use, by taking percutaneous nephrolithy as an example, illustrates to use step.
Wherein, the content about anesthesia and relevant medical Preoperative Method work is omitted.
According to the structure feature of human body, using B ultrasound or X-ray C arm machine, check that the position of calculus and kidney cavity are empty in kidney
Between imaged image；
In confirmed kidney behind the space of calculus and kidney cavity, in the imaged image shown using B ultrasound or X-ray C arm machine
The re-entrant portion of renal plevis is reached under guidance, using the puncture needle with Puncture needle sleeve；
Puncture needle is taken out, is detained the outer tube of puncture needle, forms renal plevis inner chamber body and external spatial channel；
Puncture needle outer tube through being detained penetrates the guidance seal wire of zebra label size to renal plevis inside cavity；
The outer tube for taking out puncture needle, set stay the guidance seal wire for having zebra label size penetrated, be created as one with it is outer
The smooth channel in portion；
By there is the guidance seal wire of zebra label size to penetrate the expander of different-diameter thickness, to the percutaneous of subsequent entrance
Kidney mirror does the musculus cutaneus meat duct for extending and being created as with external linkage；
After the extension for completing musculus cutaneus meat duct, by there is the merging of the guidance seal wire of zebra label size to have the warp of perfusion channel
The outer tube of skin kidney mirror；
(electronics or light-guide fiber image bundles formula) percutaneous nephrolithy is entered in renal plevis by the inner hole of outer tube, is observed
Behind the position of calculus, implements diagnosis and need the Minimally Invasive Surgery of rubble.
When selecting ultrasound lithotripter, rubble ultrasonic horn is entered in renal pelvic cavity body by the instrument channel of percutaneous nephrolithy,
Ultrasound Instrument is opened, ultrasonic horn is aimed to the calculus that kidney to be treated is intracavitary on the tv screen, in the intracavitary implementation rubble of kidney
The continuous perfusion of sterile physiological water is remained in the process；The stone smashed that pumps in rubble constantly is allowed to be not left in kidney chamber
It is interior, reach the rehabilitation of stone.
Content about postoperative relevant curative activity is omitted.
The medical tube structure of the utility model uses the design of rotary double-layer lumen, and outer layer pipe outside diameter can choose 13
~15Fr guarantees that it is micro-channel type that the open surface of a wound is needed on patient skin, and inner tube uses the bent design become of abnormity,
Inner tube includes matching the instrument channel (meeting 2.8~3.3mm/8.4Fr~9.9Fr) of instrumentation diameters, and have biggish
Perfusion channel.Both it ensures passing through using such as instrument of 3mm ultrasonic horn, is inserted into the inner tube of ultrasonic rubble bar, it is natural
Segmentation forms area and is all larger than internal diameter 1.2mm (area about 1.13mm2) circular channel two perfusion channels, ensure that
During using ultrasonic rubble, when the water-filling perfusion being used below under 30mm mercury column air pressure, the unimpeded and quick-fried of perfusion has been obtained
The discharge of rubble after broken along the lumen divided naturally.
Using the light-guide fiber image bundles of high image quality, the housing of traditional stainless steel tube is eliminated, simultaneous transmission light is led
The quantity of light glass fibre can also meet the built-in of quantity significantly, ensure that the transmission of light can satisfy clinical observation and minimal invasive procedures
In illumination.
Therefore the design of two-tube cavity increases the space of inner tube, and the outer diameter of outer tube reduces.
It needs to turn when in view of renal plevis mirror percutaneous using hard in art or provokes processing crushed stone using mirror body, due to
The long longitudinal bent change for easily causing caliber of caliber, causes the variation of the central axis of optics cylindrical mirror, image fuzzy phenomenon occurs, leads
The unintelligible of the visual field is caused, the observation in art is influenced.The special-shaped bent design become changes the flexibility of typical circular pipe fitting, by different
The concave-convex straight line in 4 processed of shape not only increases the rigid of caliber also while increasing the elasticity of caliber, and makes
Powerful rigidity is also able to maintain with meeting to provoking for lump.
The design of water inlet draining in inner tube is the separation by ultrasonic horn, therefore is changed to protect at anisotropic rear end
Circular state is held, the entrance of such steam is also naturally separated and kept as fine optical fiber with the video beam of high image quality and Optic transmission fiber
Leakproofness, the appearance of the blooming in the visual field will not be caused because of water inlet.
Using the medical tube structure of the utility model, since the abnormity designs, outer tube can be set to microchannel
Caliber realizes that wound is small, few intercurrent disease；And the special-shaped section of inner tube makes tube body integrally and has biggish perfusion channel, perfusion
Speed is fast, and flushing liquor drainage is unobstructed, keeps endoscopic visual clear.
In this description, the utility model is described with reference to its specific embodiment.But it is clear that still can be with
The spirit and scope that various modification can be adapted and converts without departing from the utility model.Therefore, the description and the appended drawings should be considered as
It is illustrative and not restrictive.
Claims (11)
1. a kind of medical tube structure, which is characterized in that the medical tube structure includes outer tube and is sheathed on described
Inner tube in outer tube, the cross-sectional configuration of at least part of inner tube are described at having the first circular arc, the second circular arc
The both ends of first circular arc and the second circular arc pass through the first special-shaped section respectively and are connected with the second special-shaped section, so that at least part of
The cross section of inner tube has special-shaped closed channel.
2. medical tube structure according to claim 1, which is characterized in that the special-shaped closed channel includes that instrument is logical
It is logical to form the first perfusion close to the edge of the instrument channel of the described first special-shaped section and the described first special-shaped section for road
It is logical to form the second perfusion close to the edge of the instrument channel of the described second special-shaped section and the described second special-shaped section for road
Road.
3. medical tube structure according to claim 2, which is characterized in that first perfusion channel and the second perfusion
Channel sized is equal.
4. medical tube structure according to claim 2, which is characterized in that at least part of first circular arc with
At least part of second circular arc is respectively adjacent to the edge setting of the instrument channel, and first perfusion is logical
Road and the second perfusion channel are symmetrically disposed on the two sides of the instrument channel.
5. medical tube structure according to claim 2 or 4, which is characterized in that first perfusion channel and second
The area of the cross section of perfusion channel is set greater than 1.13mm respectively2；The diameter of the instrument channel between 2.8mm~
3.3mm, the outer diameter of the outer tube is between 4.29mm~4.95mm.
6. medical tube structure according to claim 2 or 4, which is characterized in that the diameter of the instrument channel is arranged
At the diameter of matching ultrasonic horn.
7. medical tube structure according to claim 1, which is characterized in that the special-shaped section of described first and the second special-shaped section
It is respectively provided with the curve to the convex change of outer tube, so that convex the first perfusion channel of change extent control for passing through the curve
With the size of the second perfusion channel.
8. medical tube structure according to claim 1, which is characterized in that the outer tube removes the inside of inner tube also
It is provided with light-guide fiber image bundles and light guide glass fiber.
9. medical tube structure according to claim 1, which is characterized in that have abnormity closing logical in the inner tube
The length of pipe section of the cross section in road accounts for the 85%~90% of the total length of pipe section of the inner tube, and the inner tube further includes
Pipeline section with circular cross section.
10. a kind of endoscope, which is characterized in that the endoscope includes medical tube described in any one of claims 1 to 9
Body structure.
11. endoscope according to claim 10, which is characterized in that the endoscope be endoscope body, hysteroscope,
Thoracoscope, renal plevis mirror, colonoscopy, nasal cavity ventriculoscope, bronchoscope or gastroscope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721624643.9U CN208741034U (en) | 2017-11-29 | 2017-11-29 | Medical tube structure and corresponding endoscope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721624643.9U CN208741034U (en) | 2017-11-29 | 2017-11-29 | Medical tube structure and corresponding endoscope |
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| Publication Number | Publication Date |
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| CN208741034U true CN208741034U (en) | 2019-04-16 |
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ID=66051499
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107811660A (en) * | 2017-11-29 | 2018-03-20 | 上海欧太医疗器械有限公司 | Medical tube structure and corresponding endoscope |
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2017
- 2017-11-29 CN CN201721624643.9U patent/CN208741034U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107811660A (en) * | 2017-11-29 | 2018-03-20 | 上海欧太医疗器械有限公司 | Medical tube structure and corresponding endoscope |
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