CN202751428U - Mini-percutaneous nephrolithotomy (PCNL) broken stone discharging device - Google Patents
Mini-percutaneous nephrolithotomy (PCNL) broken stone discharging device Download PDFInfo
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- CN202751428U CN202751428U CN 201220308804 CN201220308804U CN202751428U CN 202751428 U CN202751428 U CN 202751428U CN 201220308804 CN201220308804 CN 201220308804 CN 201220308804 U CN201220308804 U CN 201220308804U CN 202751428 U CN202751428 U CN 202751428U
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Abstract
The utility model discloses a safe mini-percutaneous nephrolithotomy (PCNL) broken stone discharging device. The mini-PCNL broken stone discharging device mainly comprises a sealing cap, an upper cover, a sealing ring, a safety valve, a sheathing canal, a device body and a water valve, and is characterized in adoption of the safety valve, and therefore operation safety is guaranteed and water intoxication in the process of mini-PCNL stone breaking and stone cleaning can be avoided. By adopting an adjusting knob, the maximum water pressure value of the safety valve can be adjusted according to actual situations. The design that the inner diameter of the water valve is larger than that of the sheathing canal avoids possible blockage in the process of stone discharge.
Description
Technical field
The present invention relates to technical field of medical instruments, particularly relate to a kind of remover of renal calculus.
Background technology
The treatment Developing of renal calculus is take intracavitary therapy as main path.The clear stone art of percutaneous kidney rubble is the effective ways for the treatment of renal calculus.The clear stone art of percutaneous kidney rubble is divided again the clear stone art of standard percutaneous nephroscope lithotripsy and the clear stone art of little fistulation percutaneous nephroscope lithotripsy.
The technical scheme of the clear stone art of little fistulation percutaneous nephroscope lithotripsy mainly is to attract the clear stone sheath of rubble as core take the little fistulation of percutaneous kidney, cooperate holmium laser to come rubble and clear stone (referring to utility model patent, the little fistulation of percutaneous kidney attracts the clear stone sheath of rubble, the patent No.: ZL200820137434.6).
The little fistulation of percutaneous kidney attracts the clear stone sheath of rubble to comprise sealing device, suction device and metal sheath.
Main working process is as follows: at first do percutaneous renal puncture.Then enlarge puncturing hole, until can insert the metal sheath.The metal sheath has just been set up operation path after inserting human body.Then endoscope is inserted in the sheath pipe by sealing device.Under the supervision of endoscope, the instrument channel by endoscope is inserted the holmium laser probe, and water under high pressure also is that the instrument channel by endoscope is injected in vivo.The small stone that holmium laser smashes is along with current are got rid of from suction device.Finding in the practice that this method has two major defects, also is the problem to be solved in the present invention: 1) unmatched problem can occur when the pressure of the pressure of regulating water under high pressure and attraction negative pressure.If hydraulic pressure is too small in the body, just can not form so the operation chamber in the body, observation and operation all can't be carried out; If hydraulic pressure is excessive, water can enter in the body by blood vessel, causes water intoxication.In order to address this problem, the present invention has increased a relief valve.Under the protection of relief valve, the doctor needn't worry that hydraulic pressure is too high.Both safety made again operation become simple, greatly accelerated the operation process.2) front utility model patent, the little fistulation of percutaneous kidney attracts the clear stone sheath of rubble, requires the internal diameter of side draught skirt consistent with the internal diameter of metal sheath.Find larger stone in irregular shape in the practice, if the length of its longest direction greater than the internal diameter of suction catheter, so relatively is difficult to pass through suction catheter.In order to address this problem, the internal diameter that the present invention proposes the side draught skirt is greater than the internal diameter of metal sheath.
Summary of the invention
The object of the invention is to disclose a kind of technical scheme of the safe little fistulation rubble of percutaneous kidney remover.
Technical solution of the present invention:
The little fistulation rubble of the percutaneous kidney remover of safety comprise apparatus main body, loam cake, sealing cap, sealing ring, water valve,
Relief valve and sheath pipe.By screw thread loam cake is installed on the apparatus main body.Seal with sealing ring between apparatus main body and the loam cake.A surface cover sealing cap on the loam cake is used for sealing the slit between loam cake and the endoscope.The sheath pipe is installed below the apparatus main body.Several apertures are arranged below the sheath pipe.Water valve and relief valve are equipped with in the side of apparatus main body.Spanner on the rotation water valve can open and close water valve.
Relief valve has two kinds of designs, and a kind of is one-way valve designs, and a kind of is the pressure-control valve design.It is a movable rubber " tongue " in the middle of the check valve; It is a steel ball spring structure in the middle of the pressure-control valve.The parameters such as wire diameter of adjusting spring can change out the force value of valve.This force value is used for guaranteeing that the patient can not form water intoxication.Also be provided with in addition vernier knob, the doctor can also finely tune according to practical situation.
Description of drawings
Fig. 1: the little fistulation rubble of the percutaneous kidney remover overall plan sketch map of safety.Among the figure 1: sealing cap; 2: loam cake; 3: sealing ring; 4: relief valve; 5: the sheath pipe; 6: apparatus main body; 7: water valve.
Fig. 2: according to the relief valve sketch map of one-way valve designs.Among the figure 8: the relief valve main body; 9: there is the rubber blanket of C shape otch the centre; 10: safety valve cap.
Fig. 3: according to the relief valve generalized section of one-way valve designs.
Fig. 4: according to the pressure adjustable safe valve sketch map of pressure-control valve design.Among the figure 11: the relief valve main body; 12: steel ball; 13: steel ball spring; 14: pressure adjustment knob; 15: hoodle; 16: the hoodle spring; 17: safety valve cap; 18: water pipe.
Fig. 5: according to the pressure adjustable safe valve sketch map of pressure-control valve design.
Fig. 6: according to the pressure adjustable safe valve generalized section of pressure-control valve design.
Fig. 7: percutaneous kidney little fistulation rubble remover and the endoscope of safety are used sketch map.Among the figure 19: endoscope; 20: the instrument channel of endoscope.
Fig. 8: percutaneous kidney little fistulation rubble remover and the endoscope of safety are used the end enlarged diagram.Among the figure 20: the instrument channel of endoscope.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail:
The little fistulation rubble of the percutaneous kidney remover overall schematic of safety is seen Fig. 1. sealing cap 1, use the silicone rubber manufacturing, and middle aperture is more smaller than the mirror pipe diameter of endoscope, seals.Loam cake 2 is used the rustless steel manufacturing, in cavity is arranged.Sealing ring 3 is made with rubber.Relief valve 4 has two kinds of design: A, and according to the relief valve of one-way valve designs, its sketch map is such as Fig. 2 and Fig. 3.Relief valve main body 8 is made with rustless steel.Rubber blanket 9 is used the rubber manufacturing, and there is C shape otch the centre.The part of C shape the inside can freely swing.Safety valve cap 10 is made with rustless steel.Safety valve cap is only pushed down the outer side of the C shape otch of rubber blanket.The endoporus of relief valve main body is less than the inside part of the C shape otch of rubber blanket.Like this, the C shaped part is just divided and can only outwards be opened, and has just formed check valve; B is according to the pressure adjustable safe valve of pressure-control valve design, its sketch map such as Fig. 4, Fig. 5 and Fig. 6. relief valve main body 11, make with rustless steel.Steel ball 12 under the pressure of steel ball spring 13, is blocked the endoporus of relief valve main body 11.The current only export but no import.When the pressure of current surpassed the pressure of steel ball spring 13, steel ball 12 was outwards mobile, and current flow out from the gap, thus the maximum pressure of control the inside current.Safety valve cap 17 is connected with relief valve main body 11 with screw thread, and seals with glue.Pressure adjustment knob 14 usefulness screw threads cooperate with safety valve cap 17.Manual rotation pressure adjustment knob 14 can be regulated the pressure of 13 pairs of steel balls 12 of steel ball spring, thereby regulates the maximum of the inside current.Water pipe 18 is enclosed within on the safety valve cap 17, and the water that flows out is introduced waste liquid recovery apparatus.Hoodle 15 and hoodle spring 16 safety valve cap 17 the insides of packing into are such as Fig. 5.There is counterbore to cooperate with hoodle 15 on the pressure adjustment knob 14.A plurality of counterbores on the pressure adjustment knob 14 have just formed pressure controlled a plurality of gear.On pressure adjustment knob 14 and the safety valve cap 17 corresponding labelling is arranged, guide the doctor to do the pressure fine setting.Sheath pipe 5 is used the rustless steel manufacturing, and the centre is through hole, near the bottom several side openings is arranged.Apparatus main body 6 is used the rustless steel manufacturing, in cavity is arranged.Water valve 7, its internal diameter of leaking water is greater than the internal diameter of sheath pipe 4.
During operation,
The first step is at first done percutaneous renal puncture.Then enlarge puncturing hole, then sheath pipe 5 is inserted human body, and set up operation path.
Second step inserts endoscope, such as Fig. 7 and Fig. 8.
The 3rd step, open water valve 7, adjust negative pressure, simultaneously from the instrument channel 20 of endoscope to body in water filling, and adjust hydraulic pressure.The purpose of adjusting is to make the hydraulic pressure in the body remain on an appropriate value.If hydraulic pressure is too little, kidney operation chamber of can not expanding so can't be observed and carries out the hands art; If hydraulic pressure is too large, a large amount of intravasations of water meeting cause water intoxication so.Concrete size is controlled by the doctor.Relief valve 4 can be controlled the maximum of hydraulic pressure.In order to accelerate operative speed, sometimes need to strengthen water injection pressure, certainly need simultaneously intensified negative pressure.If there is not relief valve 4, there is risk in operation.
In the 4th step, the optical fiber of holmium laser inserts the intracavity that expands and from the instrument channel 20 of endoscope, under the supervision of endoscope, aims at the stone Emission Lasers, and stone is smashed into small stone.Small stone is along with current are flowed out by water valve.
The 5th step is after stone is all got rid of.Alternately reduce water injection pressure and the negative pressure of drawing water, turn off at last water filling and draw water.
In the 6th step, take out endoscope and sheath pipe.
The 7th step, handle wound well, finish operation.
Claims (3)
1. the little fistulation rubble of percutaneous kidney remover mainly comprises sealing cap (1), loam cake (2), sealing ring (3), relief valve (4), sheath pipe (5), apparatus main body (6) and water valve (7); It is characterized in that described water valve (7) minimum leakes water internal diameter greater than the minimum of sheath pipe (5) internal diameter of leaking water.
2. the little fistulation rubble of percutaneous kidney according to claim 1 remover, it is characterized in that relief valve (4) has the structure of check valve, comprise that there is rubber blanket (9) and the safety valve cap (10) of C shape otch relief valve main body (8), centre.
3. the little fistulation rubble of percutaneous kidney according to claim 1 remover, it is characterized in that relief valve (4) has the structure of pressure-control valve, comprise relief valve main body (11), steel ball (12), steel ball spring (13), pressure adjustment knob (14), hoodle (15), hoodle spring (16), safety valve cap (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308804 CN202751428U (en) | 2012-06-29 | 2012-06-29 | Mini-percutaneous nephrolithotomy (PCNL) broken stone discharging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308804 CN202751428U (en) | 2012-06-29 | 2012-06-29 | Mini-percutaneous nephrolithotomy (PCNL) broken stone discharging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202751428U true CN202751428U (en) | 2013-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220308804 Expired - Fee Related CN202751428U (en) | 2012-06-29 | 2012-06-29 | Mini-percutaneous nephrolithotomy (PCNL) broken stone discharging device |
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| CN (1) | CN202751428U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106539610A (en) * | 2016-09-30 | 2017-03-29 | 广西医科大学第附属医院 | Damage-free type bladder and calculus of urethra stone taking device |
-
2012
- 2012-06-29 CN CN 201220308804 patent/CN202751428U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106539610A (en) * | 2016-09-30 | 2017-03-29 | 广西医科大学第附属医院 | Damage-free type bladder and calculus of urethra stone taking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20200629 |