CN208287318U - A kind of ureter importing sheath - Google Patents
A kind of ureter importing sheath Download PDFInfo
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- CN208287318U CN208287318U CN201721150242.4U CN201721150242U CN208287318U CN 208287318 U CN208287318 U CN 208287318U CN 201721150242 U CN201721150242 U CN 201721150242U CN 208287318 U CN208287318 U CN 208287318U
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- sheath
- pressure
- expansion pipe
- pipe fitting
- inner tube
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Abstract
The utility model discloses a kind of ureter importing sheath, including guide sheath ontology and expansion pipe, and guide sheath ontology includes pallet, sheath pipe fitting and hollow sheath, and one end of sheath is connect by sheath pipe fitting with pallet；Expansion pipe is located at guide sheath body interior, and expansion pipe is coaxially disposed with guide sheath ontology, a pressure sensitive channel is opened up in sheath side wall, pressure detecting connector is connected on the pressure sensitive channel of sheath pipe fitting side, pressure sensor is arranged in pressure sensitive channel end, the coupling pressure hole communicated with pressure sensitive channel is opened up in sheath pipe end simultaneously, the sensor line for connecting pressure sensor is located in pressure sensitive channel, and the signal of pressure sensor acquisition is delivered to host through sensor line.The utility model has the function of real-time pressure detection, using fluid coupling pressure measuring principle, measures pressure with common invasive blood pressure sensor or other universal fluid pressure sensors, compared with the existing technology, practical, easy to implement.
Description
Technical field
The utility model relates to the field of medical instrument technology, and in particular to a kind of ureter importing sheath.
Background technique
The ureter of human body is typically more narrow, adhesion need to pass through operation and grasp when its obstruction, obstruction or generation calculus
It is treated, and needs to establish operation path during operation, endoscope, laser fiber, stone dislodger are imported by operation path
Tool or operation cable etc., are operated with facilitating.
In the prior art, it establishes above-mentioned operation path and is usually that direct transdermal punctures, and by endoscope, laser fiber etc.
Medical instrument is introduced directly into the urinary tract one by one.However, there are following disadvantages for the prior art: first is that repeatedly change of equipment when
Ureter easily damages, so that importing traumatic larger；Second is that precision instrument and thinner flexible endoscope are easy when importing
Damage, and the high cost that will correspondingly increase operation of maintenance cost；Third is that ureter, which imports sheath, haves the defects that universal is exactly nothing
Method measures pressure, is easy to lead to septicopyemia etc. because cavity pressure is excessive, therefore have further improved necessity；Fourth is that current institute
Having that such product active length is immutable (men's type 450mm, lady's type 350mm), ureterscopy active length is 430mm,
The two cannot be used cooperatively, cannot reach the lower requirement being placed in of direct-view；It is both needed in art along seal wire with patient's feel and the blind view of experience
It is placed under lower merging or x-ray fluoroscopy, may cause accidental injury in this way；Also one-stage operation rubble can be abandoned because being placed in difficulty to control
It treats；Fifth is that existing ureter does not have pre-washing function, calculus can not be cleaned out from expansion pipe.
Utility model content
The purpose of this utility model is to provide a kind of ureters to import sheath, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the utility model provides the following technical solutions: a kind of ureter importing sheath, including guide sheath
Ontology and expansion pipe, the guide sheath ontology includes pallet, sheath pipe fitting and hollow sheath, and one end of the sheath passes through sheath
Pipe fitting is connect with pallet；The expansion pipe is located at guide sheath body interior, and expands pipe and be coaxially disposed with guide sheath ontology,
Innovative point is: the sheath is segmentation structure, including inner and outer tubes, and the length of said inner tube is greater than the length of outer tube,
Said inner tube is socketed in outer tube, and inner tube can do stretching motion in outer tube, and a pressure is opened up in said inner tube side wall
Induction channels, are connected with pressure detecting connector on the pressure sensitive channel of sheath pipe fitting side, before the pressure sensitive channel
End setting pressure sensor, while the coupling pressure hole communicated with pressure sensitive channel is opened up in sheath front end, connect the pressure
The sensor line of force snesor is located in pressure sensitive channel, and the signal of the pressure sensor acquisition is defeated through sensor line
It send to host；The step of ring structure is set inside the pallet, becket is fixedly installed on the step；The expansion pipe packet
Expansion pipe fitting, handle and expansion pipe tube body are included, the expansion pipe fitting is connected to the end of expansion pipe tube body, and the handle is set
It sets on expansion pipe fitting, magnetic is fixedly installed in the convex block around several convex blocks are arranged in the external rings of the expansion pipe fitting
The internal-and external diameter of stone, the circle becket of the convex block surrounded is all equal, and the convex block can be filled up completely the step of ring structure.
Further, the external middle position of said inner tube is also fixedly installed with an irrigation channel.
Further, said inner tube is located at the limited block of the end fixed setting frustum cone structure of outer tube, the outer tube
Front end be horn mouth, the limited block and horn mouth are interference fit, and limit is fixed to inner tube.
Further, the sheath inner tube layer and sheath outer tube layer are coated with hydrophilic coating.
Further, the sheath outer tube layer uses PEBAX material, and sheath inner tube layer uses PTFE material.
Further, the expansion pipe tube body has taper far from one end of expansion pipe fitting.
Further, the lower end volume of the expansion pipe fitting is equal with the hollow volume profiles in pallet.
Compared with prior art, the utility model has the beneficial effects that
1. ureter guide sheath provided by the utility model is simple in sturcture, ingenious in design, production cost is low；The utility model
Has the function of real-time pressure detection, using fluid coupling pressure measuring principle, with common invasive blood pressure sensor or other general
Fluid pressure sensor measures pressure, compared with the existing technology, practical, easy to implement；Thus, in the same of sheath pipeline work
When, by pressure sensitive channel can real-time pressure in moment sense organ, prevent cavity pressure is excessive from damaging to patient,
Especially control septicopyemia, wherein the route of pressure sensor is external, on the normal work of sheath without influence；
2. the utility model is structurally reasonable to have good pushability, supportive, fold resistance etc., buffers and tissue has been rushed
It hits or stimulates, carry out Ureteroscopy, treatment again after ureterectasia, avoid and medical instrument etc. is directly entered into urethra
Importing and output repeatedly uses, and significantly reduces injury of ureter, improves ureteroscope success rate, the ureter guide sheath
It is smaller to ureter wound risk, it does not need repeatedly to puncture, patient suffering and infection risk can be effectively reduced；
3. the outer sheath of the utility model is designed using two segment, can voluntarily adjusting for sheath length of tube, Neng Goushi are realized
It is existing unisex, expand use scope；
4. the utility model by being provided with an irrigation channel in sheath, enters convenient for liquid from irrigation channel, then
Calculus is carry to clean out from expansion pipe；
5. the utility model can effectively reduce operative process by being provided with hydrophilic coating in outer sheath outer surface
The frictional force of mesotheca tube wall and urine output inside pipe wall.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of guide sheath ontology in the utility model；
Fig. 3 is the structural schematic diagram of guide sheath ontology front end in the utility model；
Fig. 4 is the sectional view of pallet in the utility model；
Fig. 5 is the structural schematic diagram that pipe is expanded in the utility model；
Fig. 6 is the structural schematic diagram that pipe fitting is expanded in the utility model.
In figure: 1 guide sheath ontology, 11 pallets, 111 steps, 112 beckets, 12 sheath pipe fittings, 13 sheaths, 131 inner tubes,
132 outer tubes, 14 pressure sensitive channels, 15 pressure detecting connectors, 16 pressure sensors, 17 coupling pressure holes, 2 expansion pipes, 21 are expanded
Open pipe fitting, 22 handles, 23 expansion pipe tube bodies, 24 convex blocks, 25 magnetites, 3 irrigation channels.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please referring to Fig. 1-6, a kind of ureter importing sheath, including guide sheath ontology 1 and expansion pipe 2, guide sheath ontology 1 includes
One end of pallet 11, sheath pipe fitting 12 and hollow sheath 13, sheath 13 is connect by sheath pipe fitting 12 with pallet 11；Expansion pipe
2 are located inside guide sheath ontology 1, and expand pipe 2 and the coaxial arrangement of guide sheath ontology 1, and sheath 13 is segmentation structure, including interior
Pipe 131 and outer tube 132, the length of inner tube 131 are greater than the length of outer tube 132, and inner tube 131 is socketed in outer tube 132, and inner tube
131 can do stretching motion in outer tube 132, a pressure sensitive channel 14 be opened up in 131 side wall of inner tube, in sheath pipe fitting 12 1
It is connected with pressure detecting connector 15 on the pressure sensitive channel 14 of side, while being opened up and pressure sensitive channel 14 in 13 end of sheath
The sensor line in the coupling pressure hole 17 communicated, connection pressure sensor 16 is located in pressure sensitive channel 14, pressure sensing
The signal that device 16 acquires is delivered to host through sensor line；The step 111 of ring structure, step 111 are set inside pallet 11
Upper fixed setting becket 112；Expanding pipe 2 includes expansion pipe fitting 21, handle 22 and expansion pipe tube body 23, expands pipe fitting 21
It is connected to the end of expansion pipe tube body 23, the setting of handle 22 expands the external rings winding of pipe fitting 21 on expansion pipe fitting 21
Several convex blocks 24 are set, magnetite 25, the internal-and external diameter all phases for the circle becket 112 of convex block 25 surrounded is fixedly installed in convex block 24
Deng convex block 24 can be filled up completely the step 111 of ring structure.The sheath 13 of the utility model is designed using two segment, is realized
Can voluntarily the adjusting of 13 length of sheath, can be realized unisex, expand use scope；The quantity of convex block 24 and magnetite 25
It can in the light of actual conditions be configured, magnetic size can not influence actual operation.
In the present embodiment, the external middle position of inner tube 131 is also fixedly installed with an irrigation channel 3.When use,
By pouring water flow in irrigation channel 3, the hydrops of the calculus that will be smashed, patient's body is rinsed out from expansion pipe 2.
Inner tube 131 is located at the limited block 133 of the fixed setting of the end inside outer tube 132 frustum cone structure, the front end of outer tube 132
For horn mouth 134, limited block 133 and horn mouth 134 are interference fit, and limit is fixed to inner tube 131.By by inner tube
131 stretch forward, fix limited block 133 with horn mouth 134, prevent from shifting during use.
In the present embodiment, sheath inner tube layer and sheath outer tube layer are coated with hydrophilic coating.The hydrophilic coating be by with human body
The polyvinylpyrrolidone material of good, nontoxic, the non-stimulated sensitization of histocompatbility is made, it can greatly enhance sheath inner tube layer and sheath
The lubricity on outer tube layer surface can be reduced the damage of mucous membrane, mitigate the pain of patient in being placed in or extracting out body cavities and tissue
Hardship, while can effectively avoid the damage of the accurate Medical Instruments such as endoscope, laser fiber.
In the present embodiment, sheath outer tube layer uses PEBAX material, and sheath inner tube layer uses PTFE material.
In the present embodiment, expansion pipe tube body 23 has taper far from one end of expansion pipe fitting, which is preferably 3-
It is 5 °, more convenient in this way to expand protruding into and taking out for pipe.
In the present embodiment, the lower end volume for expanding pipe fitting 21 is equal with the hollow volume profiles in pallet 11.
Working principle of the utility model is:
The hand-holdable handle of medical staff will expand pipe tube body and be extended ureter through the smooth sheath inner tube layer of sheath, extend
After the completion, by expansion pipe extraction, the channel that then stretched pipe is formed is imported or is exported Medical Devices (such as endoscope)
Or drug etc..In use, it expands becket in magnetite and pallet on pipe to be fixed, to make guide sheath ontology
It will not fall off with expansion pipe.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of ureter imports sheath, including guide sheath ontology and expansion pipe, the guide sheath ontology includes pallet, sheath pipe fitting
It is connect by sheath pipe fitting with pallet with one end of hollow sheath, the sheath；The expansion pipe is located in guide sheath ontology
Portion, and expand pipe and be coaxially disposed with guide sheath ontology, it is characterised in that: the sheath is segmentation structure, including inner tube and outer
Pipe, the length of said inner tube are greater than the length of outer tube, and said inner tube is socketed in outer tube, and inner tube can be done in outer tube and stretch
Contracting moves, and opens up a pressure sensitive channel in said inner tube side wall, is connected on the pressure sensitive channel of sheath pipe fitting side
Pressure detecting connector, the pressure sensitive Channel front end are arranged pressure sensor, while opening up and pressure sensitive in sheath front end
The coupling pressure hole that channel communicates, the sensor line for connecting the pressure sensor are located in pressure sensitive channel, the pressure
The signal of force snesor acquisition is delivered to host through sensor line；The step of setting ring structure, described inside the pallet
Becket is fixedly installed on step；The expansion pipe includes expansion pipe fitting, handle and expansion pipe tube body, the expansion pipe fitting
It is connected to the end of expansion pipe tube body, the handle setting is on expansion pipe fitting, the external rings winding of the expansion pipe fitting
Several convex blocks are set, magnetite are fixedly installed in the convex block, the internal-and external diameter for the circle becket of the convex block surrounded is all equal, institute
State the step that convex block can be filled up completely ring structure.
2. a kind of ureter according to claim 1 imports sheath, it is characterised in that: the external middle position of said inner tube
Also it is fixedly installed with an irrigation channel.
3. a kind of ureter according to claim 1 imports sheath, it is characterised in that: said inner tube is located at the end of outer tube
The limited block of end fixed setting frustum cone structure, the front end of the outer tube is horn mouth, and the limited block and horn mouth are matched for interference
It closes, limit is fixed to inner tube.
4. a kind of ureter according to claim 1 imports sheath, it is characterised in that: the sheath inner tube layer and sheath outer tube layer are equal
Coated with hydrophilic coating.
5. a kind of ureter according to claim 1 imports sheath, it is characterised in that: the sheath outer tube layer uses PEBAX material
Material, sheath inner tube layer use PTFE material.
6. a kind of ureter according to claim 1 imports sheath, it is characterised in that: the expansion pipe tube body is far from expansion pipe
One end of connector has taper.
7. a kind of ureter according to claim 1 imports sheath, it is characterised in that: the lower end body of the expansion pipe fitting
Product is equal with the hollow volume profiles in pallet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721150242.4U CN208287318U (en) | 2017-09-08 | 2017-09-08 | A kind of ureter importing sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721150242.4U CN208287318U (en) | 2017-09-08 | 2017-09-08 | A kind of ureter importing sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208287318U true CN208287318U (en) | 2018-12-28 |
Family
ID=64696561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721150242.4U Active CN208287318U (en) | 2017-09-08 | 2017-09-08 | A kind of ureter importing sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208287318U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110558922A (en) * | 2019-09-02 | 2019-12-13 | 西安交通大学医学院第一附属医院 | Neuroendoscopy with suction device and use method thereof |
| CN112717269A (en) * | 2021-01-07 | 2021-04-30 | 上海翰凌医疗器械有限公司 | Vascular sheath device, vascular sheath device and cooperation structure of expander in advance |
-
2017
- 2017-09-08 CN CN201721150242.4U patent/CN208287318U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110558922A (en) * | 2019-09-02 | 2019-12-13 | 西安交通大学医学院第一附属医院 | Neuroendoscopy with suction device and use method thereof |
| CN110558922B (en) * | 2019-09-02 | 2021-11-23 | 西安交通大学医学院第一附属医院 | Neuroendoscopy with suction device and use method thereof |
| CN112717269A (en) * | 2021-01-07 | 2021-04-30 | 上海翰凌医疗器械有限公司 | Vascular sheath device, vascular sheath device and cooperation structure of expander in advance |
| CN112717269B (en) * | 2021-01-07 | 2021-11-12 | 上海翰凌医疗器械有限公司 | Vascular sheath device, vascular sheath device and cooperation structure of expander in advance |
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