CN201675985U - Expansion sheath for efficiently eliminating stones during percutaneous nephrolithotomy - Google Patents
Expansion sheath for efficiently eliminating stones during percutaneous nephrolithotomy Download PDFInfo
- Publication number
- CN201675985U CN201675985U CN2010201426831U CN201020142683U CN201675985U CN 201675985 U CN201675985 U CN 201675985U CN 2010201426831 U CN2010201426831 U CN 2010201426831U CN 201020142683 U CN201020142683 U CN 201020142683U CN 201675985 U CN201675985 U CN 201675985U
- Authority
- CN
- China
- Prior art keywords
- eccentric
- solenoid
- expansion sheath
- sheath
- expansion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000004575 stone Substances 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229920001169 thermoplastic Polymers 0.000 claims abstract 2
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract 2
- 210000000244 kidney pelvis Anatomy 0.000 claims description 9
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 6
- 238000001356 surgical procedure Methods 0.000 claims description 5
- 230000000295 complement effect Effects 0.000 claims description 3
- 210000003195 fascia Anatomy 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims 1
- 230000008030 elimination Effects 0.000 claims 1
- 238000003379 elimination reaction Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract 3
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 210000004197 pelvis Anatomy 0.000 abstract 1
- 238000002504 lithotomy Methods 0.000 description 4
- 208000035965 Postoperative Complications Diseases 0.000 description 3
- 210000003734 kidney Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002324 minimally invasive surgery Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 206010058046 Post procedural complication Diseases 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 208000000913 Kidney Calculi Diseases 0.000 description 1
- 206010029148 Nephrolithiasis Diseases 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000013010 irrigating solution Substances 0.000 description 1
- 238000002686 lithotriptor Methods 0.000 description 1
- 238000011369 optimal treatment Methods 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 210000000626 ureter Anatomy 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
Images
Landscapes
- Surgical Instruments (AREA)
- Endoscopes (AREA)
Abstract
The utility model relates to the field of medical instruments and discloses an expansion sheath for efficiently eliminating stones during percutaneous nephrolithotomy. The expansion sheath is composed of a sealing cap (1), an eccentric solenoid (2), an expansion sheath (3) and the inner core (4) of the expansion sheath, and is characterized in that the sealing cap (1) is made of a thermoplastic elastic body and has the advantages of excellent elasticity and leak tightness; and an endoscope passage (2.2) is internally tangent to an eccentric solenoid water inlet (2.5), and the inner tangent relation between the endoscope and the eccentric solenoid water inlet (2.5) is always ensured. Therefore, a maximal space used for discharging stones is ensured; the application of a right-angled bend (2.3) of an increasing coupling not only ensures that the stone is prevented from blockage at the bend part, but also can reduce the occurring rates of the phenomenon that stones are too large to pass the peak of the passage of a stone discharging sheath and fall back to pelvis due to the oversize of the stone, and the stone discharging efficiency is improved; and the eccentric solenoid (2) can be detached from the expansion sheath (3), so that the use is convenient. In short, the application of the utility model ensures safer and more efficient percutaneous nephrolithotomy.
Description
Technical field
This utility model relates to medical instruments field, is that a kind of PCN rubble that is used for is got the efficient expansion sheath of removing calculus of stone operation.
Background technology
Urinary system calculus is the modal disease of Urology Surgery, and most of needs of patients endoscope-assistant surgery is treated, and diameter is a PCN rubble lithotomy greater than the kidney stone of 2cm and the optimal treatment method of ureter epimere calculus.That knapper under the PCN has is ultrasonic, air pressure trajectory and laser, and rock breaking tool has only and ultrasonicly has rubble simultaneously and get the stone function in these three kinds of bodies, but ultrasonic rubble feeler lever fractures easily, and use cost is higher.And air pressure trajectory and laser are efficient rock breaking tools in the body that is most widely used at present, but they have only the rubble function, can not get stone, need pressurized impulse current or lithotomy forceps rubble could be taken out, this has just prolonged operating time and has increased renal pelvis intrinsic pressure, and then has increased the probability of postoperative complications such as postoperative generation severe infections and residual stones.
Present PCN expansion sheath is a normal straight tube, only be that a skin is to the artificial channel between the kidney aggregation system, only for various apparatus turnover kidneys and the usefulness of keeping the backflow of irrigating solution, it is intrinsic pressure to regulate renal pelvis, can not get stone automatically, be applied to the air pressure trajectory and laser PCN rubble lithotomy has bigger limitation, therefore there is the people to attempt at terminal calculus circle round chamber and the vacuum aspiration port of increasing of common expansion sheath, though improved the renal pelvis internal pressure to a certain extent, reduced the danger that the renal pelvis high pressure may bring, but because of structural design unreasonable, can not solve the clinical practice problem, as: advancing Jing Kou and sheath pipe is concentric circular---unreasonable structure, and when endoscope enters and carries out rubble when operation in the sheath pipe by advancing Jing Kou, endoscope is not concentric with the sheath pipe, thereby reduced the effective calculus space in the sheath, so that need be broken into the littler fragment of volume to calculus could take out, and perhaps causes rubble to be stuck between shank and the sheath inwall in the calculus process easily, has prolonged operating time; Be connected with the calculus chamber of circling round between sheath and the vacuum aspiration port---unreasonable structure, in operation process, suck calculus simultaneously when circling round the chamber as the bigger crushed stone more than two, the possibility of blocking vacuum aspiration port is arranged, in case and vacuum aspiration port is blocked, then can cause vacuum suction to lose efficacy, the renal pelvis internal pressure increases, and has potential danger, and the influence operation is carried out smoothly.Still do not have a kind of simple in structurely, easy to use at present, promptly can high efficiency get rid of calculus, the expansion sheath that can effectively reduce postoperative complication again emerges.
Summary of the invention
In order to shorten the time of PCN air pressure trajectory and laser lithotripsy lithotomy, improve and get stone efficient, reduce postoperative complication, this utility model provides a kind of can regulate the high-efficiency calculus-removing expansion sheath of percutaneous nephroscope that the intrinsic pressure and rubble of renal pelvis can be got stone simultaneously automatically.
This utility model is by sealing cap, eccentric solenoid, expansion sheath and expansion sheath inner core are formed, sealing cap is made by the thermoplastic elastomer (TPE) with splendid elasticity and sealing, sealing cap is fixed on the eccentric solenoidal sealing cap support, endoscope inserts in the endoscope path way by the sealing medicated cap, the internal diameter of endoscope path way and selected endoscope external diameter are complementary, because of tangent in endoscope path way and the eccentric solenoid water inlet (both when expansion sheath and eccentric solenoid install the back endoscope path way and expand sheath tangent in also), and the length of endoscope path way is much larger than its internal diameter, when both in endoscope inserts eccentric solenoid, having undergone surgery operation, be always interior tangent relation between endoscope and the eccentric solenoid water inlet, therefore guaranteed that great space is used for calculus; Eccentric solenoidal side design is useful on and connects the calculus receiving flask negative pressure interface of (connecting the foot-control type vacuum extractor on the bottle), it is downward-sloping that the axis of this interface and horizontal direction are 15 ° of angles, being parameter with eccentric solenoid water inlet internal diameter by one between negative pressure interface and the eccentric solenoid water inlet, increaser right angle bend is connected, the application of this increaser bend can prevent that not only calculus from stopping up at the bend place, and (according to the bernoulli principle) can reduce the incidence rate in the renal pelvis that falls back again because of calculus is excessive, raising calculus efficient after arriving calculus sheath passage peak; Off-centre solenoid lower end has one section to be used for and to expand the linkage section that the sheath frictionally is connected, this linkage section inner surface is handled through texturing, can make frictional force between itself and the terminal outer wall of expansion sheath between 5-6N, convenient eccentric solenoid and the dismounting of expanding between the sheath, and can guarantee sealing; After expansion sheath and eccentric solenoid were in place, the internal diameter of expansion sheath equated with the internal diameter of eccentric solenoid water inlet, but the two slitless connection; The expansion sheath for long, straight, etc. the wall thickness hollow pipe, terminal for putting down mouth, the tip is 45 ° of angles, expansion sheath inner core is the hollow columnar straight tube, and the center is a silk guide passage, and front end has mellow and full tip, its external diameter is identical with the internal diameter of expansion sheath, expansion sheath inner core is formed the expansion external member with the expansion sheath, can carry out the flexibility expansion to fascia and muscle under the guiding of seal wire, thereby reduce the wound damage.
This utility model is simple in structure, and is easy to use, and its application can make percutaneous kidney Minimally Invasive Surgery safer, efficient.
Description of drawings
Fig. 1 PCN Minimally Invasive Surgery calculus sheath decomposes isometry side sketch map;
Fig. 2 PCN Minimally Invasive Surgery calculus sheath internal structure half sectional view;
The eccentric solenoid internal structure of Fig. 3 half sectional view;
View under the eccentric solenoid of Fig. 4;
Fig. 5 expands sheath and inner core combinative structure sketch map;
Fig. 6 expands sheath and inner core combination half sectional view.
The specific embodiment
Now in conjunction with the accompanying drawings this utility model is done detailed description.
This utility model is by sealing cap 1, eccentric solenoid 2, expansion sheath 3 and expansion sheath inner core 4 are formed, sealing cap 1 is made by the thermoplastic elastomer (TPE) with splendid elasticity and sealing, sealing cap 1 is fixed on the sealing cap support 2.1 of eccentric solenoid 2, endoscope inserts in the endoscope path way 2.2 by the sealing medicated cap, the internal diameter of endoscope path way 2.2 and selected endoscope external diameter are complementary, because of tangent in endoscope path way 2.2 and the eccentric solenoid water inlet 2.5 (both after the expansion sheath installs with eccentric solenoid endoscope path way and to expand sheath tangent in also), and the length of endoscope path way 2.2 is much larger than its internal diameter, when both in endoscope inserts eccentric solenoid 2, having undergone surgery operation, be always interior tangent relation between endoscope and the eccentric solenoid water inlet 2.5, therefore guaranteed that great space is used for calculus; The one side design of eccentric solenoid 2 is useful on and connects the calculus receiving flask negative pressure interface 2.4 of (connecting the foot-control type vacuum extractor on the bottle), it is downward-sloping that the axis of this interface and horizontal direction are 15 ° of angles, being parameter with eccentric solenoid water inlet internal diameter by one between negative pressure interface 2.4 and the eccentric solenoid water inlet 2.5, increaser right angle bend 2.3 is connected, the application of this increaser bend can prevent that not only calculus from stopping up at the bend place, and (according to the bernoulli principle) can reduce the incidence rate in the renal pelvis that falls back again because of calculus is excessive, raising calculus efficient after arriving calculus sheath passage peak; Off-centre solenoid 2 lower ends have one section to be used for and to expand the linkage section 2.6 that sheath 3 frictionallies are connected, this linkage section inner surface is handled through texturing, can make frictional force between itself and terminal 3.1 outer walls of expansion sheath between 5-6N, dismounting between convenient eccentric solenoid 2 and the expansion sheath 3, and can guarantee sealing; After expansion sheath 3 was in place with eccentric solenoid 2, the internal diameter of expansion sheath 3 equated with the internal diameter of eccentric solenoid water inlet 2.5, but the two slitless connection; Expansion sheath 3 for long, straight, etc. the wall thickness hollow pipe, terminal 3.1 are flat mouthful, most advanced and sophisticated 3.2 is 45 ° of angles, expansion sheath inner core 4 is the hollow columnar straight tube, and the center is a silk guide passage 4.1, and front end has mellow and full tip 4.2, its external diameter is identical with the internal diameter of expansion sheath 3, expansion sheath inner core 4 is formed the expansion external member with expansion sheath 3, can carry out the flexibility expansion to fascia and muscle under the guiding of seal wire, thereby reduce the wound damage.
During use, earlier under B ultrasonic or X-ray orientation direction, find the calculus position accurately, do percutaneous renal puncture to the target renal calices, keep somewhere seal wire, and be expanded to the diameter of selected expansion sheath gradually, slowly be pushed in the renal calices with the combination set of expanding sheath inner core 4 along seal wire this utility model expansion sheath 3 of corresponding size, withdraw from expansion sheath inner core 4 gently, keep somewhere expansion sheath 3, the eccentric solenoid 2 of supporting the present invention slowly is connected on the expansion sheath end 3.1, on negative pressure interface 2.4, connect rubble receiving flask (connecting the foot-control type vacuum extractor on the bottle), insert endoscope by sealing cap, introduce laser, rock breaking tools such as pneumatic ballistic lithotriptor carry out the rubble operation, and step on negative pressure control according to the calculus-smashing situation and ride, and cooperate calculus, calculus withdraws from this utility model together with endoscope after getting only.
Annotate: this utility model can be made the size of different series according to the size of selected expansion sheath.
Claims (6)
1. this utility model relates to medical instruments field, it is a kind of efficient clear stone expansion sheath that the PCN rubble is got the stone operation that is used for, by sealing cap (1), eccentric solenoid (2), expansion sheath (3) and expansion sheath inner core (4) are formed, it is characterized in that sealing cap (1) made by the thermoplastic elastomer (TPE) with splendid elasticity and sealing, sealing cap (1) is fixed on the sealing cap support (2.1) of eccentric solenoid (2), endoscope inserts in the endoscope path way (2.2) by the sealing medicated cap, the internal diameter of endoscope path way (2.2) and selected endoscope external diameter are complementary, because of tangent in endoscope path way (2.2) and the eccentric solenoid water inlet (2.5), both installed the back endoscope path way and expanded sheath tangent in also when expansion sheath and eccentric solenoid, and the length of endoscope path way (2.2) is much larger than its internal diameter, when both in endoscope inserts eccentric solenoid (2), having undergone surgery operation, be always interior tangent relation between endoscope and the eccentric solenoid water inlet (2.5), therefore guaranteed that great space is used for calculus; The one side design of eccentric solenoid (2) is useful on the negative pressure interface (2.4) that connects the calculus receiving flask, it is downward-sloping that the axis of this interface and horizontal direction are 15 ° of angles, being parameter with eccentric solenoid water inlet internal diameter by one between negative pressure interface (2.4) and the eccentric solenoid water inlet (2.5), increaser right angle bend (2.3) is connected, the application of this increaser bend can prevent that not only calculus from stopping up at the bend place, and can reduce incidence rate in the renal pelvis that after arriving calculus sheath passage peak, falls back again because of calculus is excessive, raising calculus efficient; Off-centre solenoid (2) lower end has one section to be used for and to expand the linkage section (2.6) that sheath (3) frictionally is connected, this linkage section inner surface is handled through texturing, can make frictional force between itself and expansion sheath end (3.1) outer wall between 5-6N, dismounting between convenient eccentric solenoid (2) and the expansion sheath (3), and can guarantee sealing; After expansion sheath 3 was in place with eccentric solenoid 2, the internal diameter of expansion sheath (3) equated with the internal diameter of eccentric solenoid water inlet (2.5), but the two slitless connection; Expansion sheath (3) for long, straight, etc. the wall thickness hollow pipe, terminal (3.1) are flat mouthful, most advanced and sophisticated (3.2) are 45 ° of angles, expansion sheath inner core (4) is the hollow columnar straight tube, and the center is silk guide passage (4.1), and front end has mellow and full tip (4.2), its external diameter is identical with the internal diameter of expansion sheath (3), expansion sheath inner core (4) is formed the expansion external member with expansion sheath (3), can carry out the flexibility expansion to fascia and muscle under the guiding of seal wire, thereby reduce the wound damage.
2. efficient clear stone expansion sheath according to claim 1 is characterized in that sealing cap (1) adopts thermoplastic elastic material to make, and has splendid elasticity and sealing.
3. efficient clear stone expansion sheath according to claim 1 is characterized in that in the side design of eccentric solenoid (2) negative pressure interface (2.4) being arranged, and is used to connect the rubble receiving flask that has vacuum suction.
4. efficient clear stone expansion sheath according to claim 1 is characterized in that endoscope path way (2.2) and eccentric solenoid water inlet (2.5) are interior tangent, has great space to be used for calculus when having guaranteed operation, improves calculus efficient.
5. efficient clear stone expansion sheath according to claim 1, to it is characterized in that between negative pressure interface (2.4) and the eccentric solenoid water inlet (2.5) by one be parameter with eccentric solenoid water inlet internal diameter, and increaser right angle bend (2.3) is connected, the application of this right angle bend can prevent that rubble from stopping up in pipe bent position, according to the bernoulli principle, can improve the elimination factor of bulk rubble simultaneously.
6. efficient clear stone expansion sheath according to claim 1, it is characterized in that eccentric solenoid (2) lower end has one section to be used for and linkage section (2.6) that expansion sheath (3) frictionally is connected, this linkage section inner surface is handled through texturing, can make frictional force between itself and expansion sheath end (3.1) outer wall between 5-6N, dismounting between convenient eccentric solenoid (2) and the expansion sheath (3), and can guarantee sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201426831U CN201675985U (en) | 2010-03-26 | 2010-03-26 | Expansion sheath for efficiently eliminating stones during percutaneous nephrolithotomy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201426831U CN201675985U (en) | 2010-03-26 | 2010-03-26 | Expansion sheath for efficiently eliminating stones during percutaneous nephrolithotomy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201675985U true CN201675985U (en) | 2010-12-22 |
Family
ID=43341049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201426831U Expired - Lifetime CN201675985U (en) | 2010-03-26 | 2010-03-26 | Expansion sheath for efficiently eliminating stones during percutaneous nephrolithotomy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201675985U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101803954A (en) * | 2010-03-26 | 2010-08-18 | 孙颖浩 | High-efficiency calculus-removing expansion sheath of percutaneous nephroscope |
| CN102835990A (en) * | 2012-09-18 | 2012-12-26 | 吴锦昌 | Cholelithotomy sheath with air bag |
-
2010
- 2010-03-26 CN CN2010201426831U patent/CN201675985U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101803954A (en) * | 2010-03-26 | 2010-08-18 | 孙颖浩 | High-efficiency calculus-removing expansion sheath of percutaneous nephroscope |
| CN102835990A (en) * | 2012-09-18 | 2012-12-26 | 吴锦昌 | Cholelithotomy sheath with air bag |
| CN102835990B (en) * | 2012-09-18 | 2014-08-27 | 吴锦昌 | Cholelithotomy sheath with air bag |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101803954A (en) | High-efficiency calculus-removing expansion sheath of percutaneous nephroscope | |
| US11013522B2 (en) | Kidney stone suction device | |
| CN109091176B (en) | Biliary tract endoscope sheath tube for protecting gall bladder and taking stone/polyp | |
| CN108498134A (en) | Sustainable perfusion and the combined type Flexible ureteroscope sheath external member attracted | |
| CN208838088U (en) | Sustainable perfusion and the combined type Flexible ureteroscope sheath external member attracted | |
| CN202113127U (en) | Ultrasonic lithotripsy apparatus | |
| CN201675985U (en) | Expansion sheath for efficiently eliminating stones during percutaneous nephrolithotomy | |
| CN101972169B (en) | The ureteroscope of semi-circular shank front end scalable camber | |
| CN206950200U (en) | A kind of percutaneous nephrolithy negative pressure, quick clear stone sheath | |
| CN108888851B (en) | Balloon sheath tube for common bile duct exploration | |
| CN109124700B (en) | Common bile duct exploration sheath tube | |
| CN203724173U (en) | Negative pressure calculus removing sheath for percutaneous nephrolithotomy | |
| CN210903225U (en) | Perfusion aspirator | |
| CN201239178Y (en) | Ultrasonic probe for breaking urinary stone in cavity and eliminating stone | |
| CN209595842U (en) | Calculi in urinary system flusher | |
| CN201370574Y (en) | Flushing suction apparatus for anti-block laparoscope | |
| CN204072203U (en) | A kind of spring-like nature tract foreign body plugging device | |
| CN208864418U (en) | A kind of kidney stone therapeutic equipment | |
| CN208551944U (en) | Brain tumor draws resectoscope | |
| CN213129617U (en) | Biliary tract mirror flushing drainage tube | |
| CN207666651U (en) | A kind of ureteral calculi extractor | |
| CN205598308U (en) | Aspirator for laparoscopic surgery | |
| CN203710529U (en) | Double-bushing drainage catheter | |
| CN210472761U (en) | Ureteroscope operation negative pressure drainage tube | |
| CN217090688U (en) | Visible and expandable ureteroscope sheath assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ARMY MEDICAL UNIV. NO.2, CHINESE PLA Free format text: FORMER OWNER: SUN YINGHAO Effective date: 20120522 Free format text: FORMER OWNER: XIAO LIANG Effective date: 20120522 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120522 Address after: 200433 Yangpu District Xiang Yin Road, No. 800, Shanghai Patentee after: Army Medical Univ. No.2, Chinese PLA Address before: 200433, 168 floor, No. 5, Changhai Road, Shanghai, Yangpu District, 2 floor office Co-patentee before: Xiao Liang Patentee before: Sun Yinghao |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101222 |