CN206687756U - Not damaged second phase percutaneous nephrolithy expanding channel sheath - Google Patents
Not damaged second phase percutaneous nephrolithy expanding channel sheath Download PDFInfo
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- CN206687756U CN206687756U CN201621465411.9U CN201621465411U CN206687756U CN 206687756 U CN206687756 U CN 206687756U CN 201621465411 U CN201621465411 U CN 201621465411U CN 206687756 U CN206687756 U CN 206687756U
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- expander
- sheath
- shape head
- catheter sheath
- expanding channel
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Abstract
The utility model discloses not damaged second phase percutaneous nephrolithy expanding channel sheath, including expander and catheter sheath, the catheter sheath includes tubular conduit and the base positioned at tubular conduit tail end, the expander includes round blunt shape head end, body and tail end, when carrying out secondary operation, the round blunt shape head end of the expander inserts and stretches out the catheter sheath, and the tail end of the expander abuts with the base of the catheter sheath.The characteristics of for the second stage of percutaneous nephrolithy, design the expanding channel sheath of round end non-invasi, expander round blunt shape head end will not damage offside and passage adjoins mucous membrane of renal pelvis, solve the problems, such as to expand bleeding due to trauma in secondary operation, improve surgical field of view, shorten operating time, reduce the complication of operation, improve operation safety.
Description
Technical field
Medicine equipment is the utility model is related to, more particularly, is related to not damaged second phase percutaneous nephrolithy expanding channel sheath.
Background technology
Percutaneous nephroscope lithotripsy stone-extraction operation (PCNL) be treat calculi in urinary system a kind of Minimally Invasive Surgery, suitable for 2cm with
On kidney stone, external stone crushing is invalid or below 2cm with obvious uronephrosis kidney stone and part proximal ureteral knot
Stone.Percutaneous renal puncture establishes first step that passage is operation, and most important step, the success or not of Path Setup be straight
Connect the success or failure for determining operation.Expanding channel sheath is one of main apparatus used in puncturing.
For Infective calculus, Calculus, volume compared with maximum size, PCNL usually needs completion of performing the operation at twice, middle
Interval 2-4 weeks, second of operation can utilize the operation path established in performing the operation first time.A current phase and secondary operation all should
With the expanding channel sheath of routine, this channel sheath front end is sharper, advantageous in one-stage operation puncture.But in secondary operation
The passage of one-stage operation can be utilized, so not needing the sharper expanding channel sheath in front end just to puncture into renal plevis.Moreover,
Certain risk can be caused to patient on the contrary using regular channels sheath in secondary operation, sharper front end often withstands on offside renal plevis
Mucous membrane, bleeding is caused, influence surgical field of view, serious meeting causes renal plevis to perforate, and causes massive haemorrhage to jeopardize patient vitals.
The content of the invention
Technical problem to be solved in the utility model is to provide one kind and is applied to percutaneous nephroscope lithotripsy stone-extraction operation second phase hand
The round end non-invasi expanding channel sheath of art.
In order to solve the above problems, the utility model provides not damaged second phase percutaneous nephrolithy expanding channel sheath, including expansion
Device and catheter sheath, it is characterised in that the catheter sheath includes tubular conduit and the base positioned at tubular conduit tail end, the expansion
Device includes round blunt shape head end, body and tail end, and when carrying out secondary operation, the round blunt shape head end of the expander is inserted and stretched out
The catheter sheath, the tail end of the expander abut with the base of the catheter sheath.
As a preferred scheme, the round blunt shape head end is arc surface or elliptical arc surface.
The utility model has the advantage of the characteristics of for the second stage of percutaneous nephrolithy, the expansion of design round end non-invasi is led to
Road sheath, expander round blunt shape head end will not damage offside and passage adjoins mucous membrane of renal pelvis, solve to puncture expansion damage in secondary operation
The problem of hindering bleeding, improve surgical field of view, shorten operating time, reduce the complication of operation, improve operation safety and benefit trouble
Person.
Brief description of the drawings
Fig. 1 is the utility model not damaged second phase percutaneous nephrolithy expanding channel sheath structural representation.
Fig. 2 is the utility model expander schematic diagram.
In diagram marked as：1 --- expander；11 --- round blunt shape head end；12 --- body；13 --- tail end；
2 --- catheter sheath；21 --- tubular conduit；22 --- base.
Embodiment
The utility model is elaborated below in conjunction with the accompanying drawings, the purposes of embodiment is only that the explanation present invention rather than limit
Determine technical scheme.
Embodiment
Fig. 1 and Fig. 2 are referred to, not damaged second phase percutaneous nephrolithy expanding channel sheath includes expander 1 and catheter sheath 2, conduit
Sheath 2 includes tubular conduit 21 and the base 22 positioned at the tail end of tubular conduit 21, and the expander 1 includes round blunt shape head end 11, sheet
Body 12 and tail end 13, when carrying out secondary operation, the round blunt shape head end 11 of the expander 1 inserts and stretches out the catheter sheath 2,
The tail end 13 of the expander 1 abuts with the base 22 of the catheter sheath 2.
The present invention is in the design basis that tradition punctures expansion sheath, and it is round blunt shape head end that the tip of expander, which is improved, institute
It is arc surface or elliptical arc surface to state round blunt shape head end, and offside renal plevis mucosa injury can be substantially reduced in the second stage of PCNL and is gone out
Blood, improve surgical field of view, shorten operating time, reduce complication.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
Art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as the scope of protection of the utility model.
Claims (3)
1. not damaged second phase percutaneous nephrolithy expanding channel sheath, including expander and catheter sheath, it is characterised in that the catheter sheath bag
Tubular conduit and the base positioned at tubular conduit tail end are included, the expander includes round blunt shape head end, body and tail end, works as progress
During secondary operation, the round blunt shape head end of the expander inserts and stretches out the catheter sheath, the tail end of the expander with it is described
The base of catheter sheath abuts.
2. not damaged second phase percutaneous nephrolithy expanding channel sheath according to claim 1, it is characterised in that the round blunt shape head
Hold as arc surface.
3. not damaged second phase percutaneous nephrolithy expanding channel sheath according to claim 1, it is characterised in that the round blunt shape head
Hold as elliptical arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621465411.9U CN206687756U (en) | 2016-12-29 | 2016-12-29 | Not damaged second phase percutaneous nephrolithy expanding channel sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621465411.9U CN206687756U (en) | 2016-12-29 | 2016-12-29 | Not damaged second phase percutaneous nephrolithy expanding channel sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206687756U true CN206687756U (en) | 2017-12-01 |
Family
ID=60439135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621465411.9U Active CN206687756U (en) | 2016-12-29 | 2016-12-29 | Not damaged second phase percutaneous nephrolithy expanding channel sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206687756U (en) |
-
2016
- 2016-12-29 CN CN201621465411.9U patent/CN206687756U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai Changshi Trading Firm Assignor: SHANGHAI NINTH PEOPLE'S HOSPITAL SHANGHAI JIAOTONG University SCHOOL OF MEDICINE Contract record no.: X2022310000057 Denomination of utility model: Non-invasive secondary percutaneous nephroscopic dilatation of the channel sheath Granted publication date: 20171201 License type: Common License Record date: 20220809 |