CN204637260U - A kind of ureter guiding sheath - Google Patents
A kind of ureter guiding sheath Download PDFInfo
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- CN204637260U CN204637260U CN201520292674.3U CN201520292674U CN204637260U CN 204637260 U CN204637260 U CN 204637260U CN 201520292674 U CN201520292674 U CN 201520292674U CN 204637260 U CN204637260 U CN 204637260U
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- guiding sheath
- macromolecular material
- lubricity
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- internal layer
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Abstract
A kind of ureter guiding sheath that this utility model relates to, comprise dilator conduit (1), guide wire joint (2), dilator joint (3) and guiding sheath pipe (4), guiding sheath pipe (4) is wherein made up of macromolecular material elastomeric layer (4.3), metal material spiral coil intermediate layer and lubricity macromolecular material internal layer (4.4) three layers of compound, it is characterized in that: described guiding sheath pipe (4) guides sheath (4.1) by the rear portion of integration and anterior guiding sheath (4.2) forms, the tubular body of metal material spiral coil (4.4) in tight ordered arrangement in described rear portion guiding sheath (4.1) is coated between high polymer elastic volume surrounding (4.3) and lubricity macromolecular material internal layer (4.5), the tubular body of metal material spiral coil (4.4) then in sparse shape ordered arrangement be coated in anterior guiding sheath (4.2) is coated between high polymer elastic volume surrounding (4.3) and lubricity macromolecular material internal layer (4.5), form front end thus and there is certain flexibility, rear end has the ureter guiding sheath of certain rigidity.
Description
Technical field
This utility model relates to a kind of urinary system can obtain operating theater instruments, and especially a kind of ureter guiding sheath, is applicable to the use of ureteroscope lithotomy.
Background technology
Ureteroscope lithotomy per urethram enters in ureter through bladder by ureteroscope, utilize cover stone basket or lithotomy forceps that calculus is taken out subsequently, or with rock crushing plants such as pneumatic ballistic lithotriptor, laser lithotripsy machine, ultrasonic trajectories under ureteroscope, guide at ureteroscope and spy on lower accurate rubble, take out again after calculus is smashed.
Conventional ureteroscope divides rigid ureteroscope and flexible ureteroscope two type, and in operation, flexible ureteroscope can arrive proximal ureteral even kidney, and the calculus for the treatment of epimere urinary system, need not operate on and can easily complete.Rigid ureteroscope, for lower ureteral calculi process.Tool noinvasive easy and simple to handle, safe, can significantly reduce the misery of patient, decrease the generation of complication, get stone thorough.
Use ureteroscope get stone operation time, ureteroscope must and ureter guiding sheath with the use of.Ureter guiding sheath, in ureteroscope lithotomy, is first advanced in patient body, under X-ray development, directly pass into lesions position adnexa, for entering of follow-up endoscope provides great convenience.In addition, get stone Post operation completing, the passage that guiding sheath pipe can flow out as rubble directly flow out outside human body, considerably reduces the misery of patient, decreases the generation of complication.
In Clinical practice, doctor wishes that desirable guiding sheath pipe had not only had certain degree of hardness simultaneously but also have certain pliability.Have that the guiding sheath of certain degree of hardness is effective send apparatus to facilitate to insert, there is certain flexibility and can effectively prevent from progradation, causing the damage to patient's internal organs.But usually see the three-decker pipe that guiding sheath pipe is made up of enhancement Layer and lubricity macromolecular material internal layer in the middle of macromolecular material elastomeric layer, metal material spiral coil.Its hardness of the composite pipe of this structure and softness, have homogeneity feature along on the length direction of body, and same homogenizing body can not both have certain rigidity, has again certain flexibility simultaneously.If do not improved its composition structure, be to reach the requirement that clinician uses.
Utility model content
The purpose of the present utility model: be intended to propose a kind of not only to have there is suitable hardness, simultaneously but also there is the novel ureter guiding sheath of certain flexibility, solved during clinician uses the difficult problem run into.
This ureter guiding sheath, comprise dilator conduit 1, guide wire joint 2, dilator joint 3 and guiding sheath pipe 4, guiding sheath pipe 4 is wherein made up of macromolecular material elastomeric layer 4.3, metal material spiral ring layer 4.4 and lubricity macromolecular material internal layer 4.5 3 layers of compound; It is characterized in that: described guiding sheath pipe 4 guides sheath 4.1 by the rear portion of integration and anterior guiding sheath 4.2 forms; The tubular body of metal material spiral ring layer 4.4 in tight ordered arrangement in described rear portion guiding sheath 4.1 is coated between high polymer elastic volume surrounding 4.3 and lubricity macromolecular material internal layer 4.5, the tubular body of metal material spiral ring layer 4.4 then in sparse shape ordered arrangement be coated in anterior guiding sheath 4.2 is coated between high polymer elastic volume surrounding 4.3 and lubricity macromolecular material internal layer 4.5, forms the ureter guiding sheath that front end has certain flexibility, rear end has certain rigidity thus.
According to this ureter guiding sheath that above technical scheme proposes, due to the metal material spiral coil forming guiding sheath pipe is designed to: hindfoot portion is in closely shape arrangement in order, front section are sparse shape ordered arrangement, therefore make this ureter guiding sheath present rear portion on the whole and there is certain rigidity, and front portion has certain pliability.
Accompanying drawing explanation
Fig. 1 is this utility model overall structure schematic diagram;
Fig. 2 is the structural representation of guiding sheath pipe;
Fig. 3 is that the AA of Fig. 2 is to profile.
In figure: 1-dilating catheter 2-guide wire joint 3-dilator joint 4-guides sheath pipe 4.1-rear portion guiding sheath 4.2-front portion guiding sheath 4.3-macromolecular material elastomeric layer 4.4-metal material spiral ring layer 4.5-lubricity macromolecular material internal layer.
Detailed description of the invention
Further describe this utility model below in conjunction with Figure of description, and provide embodiment of the present utility model.
This ureter guiding sheath, it is the improvement to the existing congenerous ureter guiding sheath generally used.
This ureter guiding sheath, comprise dilator conduit 1, guide wire joint 2, dilator joint 3 and guiding sheath pipe 4, guiding sheath pipe 4 is wherein made up of macromolecular material elastomeric layer 4.3, metal material spiral ring layer 4.4 and lubricity macromolecular material internal layer 4.4 3 layers of compound; It is characterized in that: described guiding sheath pipe 4 guides sheath 4.1 by the rear portion of integration and anterior guiding sheath 4.2 forms; The tubular body of metal material spiral ring layer 4.4 in tight ordered arrangement in described rear portion guiding sheath 4.1 is coated between high polymer elastic volume surrounding 4.3 and lubricity macromolecular material internal layer 4.5, the tubular body of metal material spiral ring layer 4.4 then in sparse shape ordered arrangement be coated in anterior guiding sheath 4.2 is coated between high polymer elastic volume surrounding 4.3 and lubricity macromolecular material internal layer 4.5, forms the ureter guiding sheath that front end has certain flexibility, rear end has certain rigidity thus.
Through this improvement, the overall metal material spiral ring layer due to rear portion of this guiding sheath pipe is made to be compact state arrangement, coatedly be arranged between high polymer elastic volume surrounding and lubricity macromolecular material internal layer, the guiding sheath at rear portion is presented there is certain rigidity, and the anterior coated metal material spiral ring layer be arranged between high polymer elastic volume surrounding and lubricity macromolecular material internal layer, because the distance between circle silk has been pulled open, therefore be the performance that whole guiding sheath more can embody high polymer elastic volume surrounding and lubricity macromolecular material internal layer, the front portion of guiding sheath is made to have certain pliability.Doctor can be reached and in use wish that guiding sheath has certain degree of hardness and send apparatus to facilitate to insert; The flexibility that simultaneously front portion can be utilized again to have, prevents from causing damage to patient's internal organs in propelling movement process.
Claims (1)
1. a ureter guiding sheath, comprise dilator conduit (1), guide wire joint (2), dilator joint (3) and guiding sheath pipe (4), guiding sheath pipe (4) is wherein made up of macromolecular material elastomeric layer (4.3), metal material spiral coil intermediate layer and lubricity macromolecular material internal layer (4.4) three layers of compound, it is characterized in that: described guiding sheath pipe (4) guides sheath (4.1) by the rear portion of integration and anterior guiding sheath (4.2) forms, the tubular body of metal material spiral coil (4.4) in tight ordered arrangement in described rear portion guiding sheath (4.1) is coated between high polymer elastic volume surrounding (4.3) and lubricity macromolecular material internal layer (4.5), the tubular body of metal material spiral coil (4.4) then in sparse shape ordered arrangement be coated in anterior guiding sheath (4.2) is coated between high polymer elastic volume surrounding (4.3) and lubricity macromolecular material internal layer (4.5), form front end thus and there is certain flexibility, rear end has the ureter guiding sheath of certain rigidity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520292674.3U CN204637260U (en) | 2015-05-07 | 2015-05-07 | A kind of ureter guiding sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520292674.3U CN204637260U (en) | 2015-05-07 | 2015-05-07 | A kind of ureter guiding sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204637260U true CN204637260U (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520292674.3U Active CN204637260U (en) | 2015-05-07 | 2015-05-07 | A kind of ureter guiding sheath |
Country Status (1)
| Country | Link |
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| CN (1) | CN204637260U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113041478A (en) * | 2021-04-16 | 2021-06-29 | 深圳麦普奇医疗科技有限公司 | Ureter guide sheath |
| WO2022116664A1 (en) * | 2020-12-04 | 2022-06-09 | 匡仁锐 | Bendable ureter guide sheath |
| CN115944830A (en) * | 2023-03-10 | 2023-04-11 | 桐庐精锐医疗器械有限公司 | Bendable double-cavity sheath tube and manufacturing method thereof |
-
2015
- 2015-05-07 CN CN201520292674.3U patent/CN204637260U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022116664A1 (en) * | 2020-12-04 | 2022-06-09 | 匡仁锐 | Bendable ureter guide sheath |
| CN113041478A (en) * | 2021-04-16 | 2021-06-29 | 深圳麦普奇医疗科技有限公司 | Ureter guide sheath |
| CN115944830A (en) * | 2023-03-10 | 2023-04-11 | 桐庐精锐医疗器械有限公司 | Bendable double-cavity sheath tube and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201203 room 101-1, No. 330 Edison Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai Patentee after: Shanghai innova Medical Instrument Co.,Ltd. Address before: 201203 room 101-1, No. 330 Edison Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai Patentee before: INNOVEX MEDICAL Co.,Ltd. |