CN103815864A - Double-cavity work sheath of flexible ureteroscope - Google Patents
Double-cavity work sheath of flexible ureteroscope Download PDFInfo
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- CN103815864A CN103815864A CN201410095970.4A CN201410095970A CN103815864A CN 103815864 A CN103815864 A CN 103815864A CN 201410095970 A CN201410095970 A CN 201410095970A CN 103815864 A CN103815864 A CN 103815864A
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Abstract
A double-cavity work sheath of a flexible ureteroscope comprises a double-cavity sheath pipe and a trumpet-shaped apparatus acceptance portion. The double-cavity sheath pipe is a flexible pipe with the length ranging from 300 mm to 500 mm, and the double-cavity sheath pipe is provided with two passageway holes, wherein one of the passageway holes serves as a main work passageway with the hole circumference ranging from 13 mm to 15 mm, and the other hole serves as a water injecting passageway with the hole circumference ranging from 3 mm to 5 mm. A far-end hole of the main work passageway of the double-cavity sheath pipe and a far-end hole of the water injecting passageway are both formed in an axial end surface of the double-cavity pipe. The small-opening end of the trumpet-shaped apparatus acceptance portion is fixedly connected with the double-cavity sheath pipe, and the trumpet-shaped apparatus acceptance portion is provided with a trumpet-shaped opening which is communicated with the main work passageway and a water hose connector which is communicated with the water injection passageway, wherein the water hose connector is arranged at the outer side wall of the apparatus acceptance portion, and the water hose connector extends out of the big-opening end of the trumpet-shaped opening. The double-cavity work sheath of the flexible ureteroscope has the advantages that the structure is simple, the price is low, the calculus removing rate is improved and medical burdens and pains of patients are reduced.
Description
Technical field
The present invention relates to urological surgery field, particularly a kind of two-chamber working sheath of ureter soft lens.
Background technology
Ureter soft lens operation is a kind of Minimally Invasive Surgery for upper lithangiuria, compared with or percutaneous kidney approach operation open with tradition, the operation of ureter soft lens have wound little, recover the advantage such as fast, be widely used at present in urological surgery.But upper Renal Ureteral Stones is carried out after ureter soft lens operation crushed stone, the calculus fragment shattering in art remains in patient's renal pelvis, be difficult to rapid discharge, the apparatus collections such as the calculus catching net-like means that wherein the relatively large calculus fragment of minority can configure by soft lens are taken out, the use cost of calculus catching net-like means is higher, the efficiency that gathers taking-up calculus crispy slice is lower, the cost of getting stone is increased, and the urine of remaining most of tiny calculus particle can only rely on patient self to urinate time taking out of is gradually external, long by the urine calculus cycle, efficiency is low, be difficult to thorough calculus, the calculus particle remaining in renal pelvis easily forms new calculus, make some patients were may occur thoroughly need to again not be in hospital operative treatment or cause that in calculus process hematuria appears in patient of calculus, urinary tract infection, the complication such as renal colic, patient's medical burden and pain are increased.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, a kind of two-chamber working sheath of ureter soft lens is provided, it is simple in structure, uses cheaply, improves ureter soft lens operation lithagogue rate, alleviates patient's medical burden and pain.
Technical scheme of the present invention is: two-chamber working sheath comprises for stretching into the two-chamber sheath pipe and the horn-like apparatus receptacle of being located at two-chamber sheath pipe near-end in body, described two-chamber sheath pipe is the flexible pipe of length 300～500mm, described two-chamber sheath pipe is provided with two access openings that axially run through, one of them is main service aisle, the hole girth of this main service aisle is 13～15mm, another is waterflood path, the hole girth of this waterflood path is 3～5mm, the main service aisle of two-chamber sheath pipe and the distal port of waterflood path are all positioned at the same axial end of two-chamber sheath pipe, the osculum end of described horn-like apparatus receptacle is fixedly connected with two-chamber sheath pipe, horn-like apparatus receptacle has the horn mouth being communicated with main service aisle and the water-supply-pipe interface being communicated with waterflood path, described water-supply-pipe interface is positioned at the lateral wall of apparatus receptacle, water-supply-pipe interface extends bell-mouthed big opening end.
Described two-chamber sheath pipe adopts vinyon to make.
On the outer peripheral face of described two-chamber sheath pipe, apply politef lubricant coating.
Described horn-like apparatus receptacle adopts the molding of ABS hard plastic injection molding.
The near-end of the osculum end of described horn-like apparatus receptacle and two-chamber sheath pipe is fixed by bonding or heat seal.
The elongated end of described water-supply-pipe interface is provided with screw thread.
Adopt technique scheme: a kind of two-chamber working sheath of ureter soft lens, described two-chamber working sheath comprises for stretching into the two-chamber sheath pipe and the horn-like apparatus receptacle of being located at two-chamber sheath pipe near-end in body, as long as by after the big opening end of the head end insertion instrument receptacle of soft lens, the head end of soft lens will insert smoothly two-chamber sheath pipe and enter patient's renal pelvis, the horn mouth of horn-like apparatus receptacle can play guide effect to entering of soft lens, is conducive to operator and efficiently soft lens is inserted in sheath pipe.Described two-chamber sheath pipe is the flexible pipe of length 300～500mm, and the flexible pipe that length is 300～500mm inserts after urethra, can arrive renal pelvis along patient's urethra, and flexible pipe, along urethra bending, can not damage patient's urethra.Described two-chamber sheath pipe is provided with two access openings that axially run through, one of them is main service aisle, and the hole girth of this main service aisle is 13～15mm, and soft lens can be from main service aisle by entering patient's renal pelvis, another is waterflood path, and the hole girth of this waterflood path is 3～5mm.Because the aperture of the aperture ratio waterflood path of main service aisle is large, when soft lens rubble finishes, soft lens can be larger rubble take out from main service aisle, the tiny particle that cannot take out for the soft lens remaining in renal pelvis, inject low-pressure water by waterflood path to patient's renal pelvis, low-pressure water forms eddy current and washes away remaining particle in patient's renal pelvis, makes current flow out and excrete from main service aisle with particle.After flushing finishes, also can again insert soft lens from main service aisle, observe the flushing situation of calculus particle, until calculus particle is flushed out to patient's renal pelvis completely.The main service aisle of two-chamber sheath pipe and the distal port of waterflood path are all positioned at two-chamber sheath tubular axis end face, the distal port of main service aisle and waterflood path is positioned at same axial end, two passwaies are all positioned at renal pelvis mouth simultaneously, the distal port that can make the particle being flushed away enter as soon as possible main service aisle, avoids particle to remain in renal pelvis.The osculum end of described horn-like apparatus receptacle is fixedly connected with two-chamber sheath pipe, horn-like apparatus receptacle has the horn mouth being communicated with main service aisle and the water-supply-pipe interface being communicated with waterflood path, described water-supply-pipe interface is positioned at the lateral wall of apparatus receptacle, water-supply-pipe interface extends bell-mouthed big opening end, water-supply-pipe extends bell-mouthed big opening end, in the time patient being implemented to soft lens operation, the apparatus receptacle of the hand-holdable two-chamber sheath of doctor pipe, convenient operation.
On the outer peripheral face of described two-chamber sheath pipe, apply politef lubricant coating, two-chamber sheath pipe is little at resistance in the time that patient's urethra inserts renal pelvis, few to the stimulation of patient's urethra, is convenient to insert.
Be further described below in conjunction with the drawings and specific embodiments.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the B of Fig. 1 is to schematic diagram;
Fig. 3 is the cutaway view of Fig. 1;
Fig. 4 is that the A-A of Fig. 3 is to cutaway view.
In accompanying drawing, 1 is two-chamber sheath pipe, and 11 is main service aisle, and 12 is waterflood path, and 2 is apparatus receptacle, and 21 is horn mouth, and 3 is water-supply-pipe interface.
The specific embodiment
Referring to Fig. 1 to Fig. 4, a kind of two-chamber working sheath of ureter soft lens, described two-chamber working sheath comprises for stretching into the two-chamber sheath pipe 1 and the horn-like apparatus receptacle 2 of being located at two-chamber sheath pipe near-end in body.Described two-chamber sheath pipe 1 is the flexible pipe of length 300～500mm, two-chamber sheath Guan Yichang 350mm for women is good, is good, due to the architectural difference of human body for male's two-chamber sheath Guan Yichang 450mm, the length minimum of this two-chamber sheath pipe can not be shorter than 300mm, no longer than 500mm.The two-chamber sheath pipe 1 of the present embodiment adopts vinyon to make, and the two-chamber sheath pipe that vinyon is made can arrive renal pelvis along patient's urethra, and flexible pipe, along urethra bending, can not damage patient's urethra.On the outer peripheral face of two-chamber sheath pipe 1, apply politef lubricant coating, politef lubricant coating makes two-chamber sheath pipe little at resistance in the time that patient's urethra inserts renal pelvis, few to the stimulation of patient's urethra, is convenient to insert.Described two-chamber sheath pipe 1 is provided with two access openings that axially run through, one of them is main service aisle 11, and the hole girth of this main service aisle 11 is 13～15mm, and soft lens can be inserted from main service aisle 11, carry out rubble, also can make calculus take out from main service aisle 11 simultaneously.Another is waterflood path 12, the hole girth of this waterflood path 12 is 3～5mm, the low-pressure water of injecting forms thread and washes away residual calculus particle, due to the architectural difference of human body, the hole girth minimum of main service aisle 11 can not be shorter than 13mm, no longer than 15mm, the hole girth minimum of waterflood path 12 can not be shorter than 3mm, no longer than 5mm, the hole girth of described main service aisle 11 is take 14mm as good, and the hole girth of waterflood path 12 is take 4mm as good.The main service aisle 11 of two-chamber sheath pipe 1 and the distal port of waterflood path 12 are all positioned at two-chamber sheath pipe 1 same axial end, make two passwaies all be positioned at renal pelvis mouth simultaneously, the distal port that can make the particle being flushed away enter as soon as possible main service aisle, avoids particle to remain in renal pelvis.The osculum end of described horn-like apparatus receptacle 2 is fixedly connected with two-chamber sheath pipe 1, the near-end of the osculum end of horn-like apparatus receptacle 2 and two-chamber sheath pipe 1 is fixed by bonding or heat seal, the present embodiment, horn-like apparatus receives the osculum end of mouth 2 and the near-end of two-chamber sheath pipe 1 to fix by heat seal.Horn-like apparatus receptacle 2 has the horn mouth 21 being communicated with main service aisle 11 and the water-supply-pipe interface 3 being communicated with waterflood path 12, described water-supply-pipe interface 3 is positioned at the lateral wall of apparatus receptacle 2, water-supply-pipe interface 3 extends the big opening end of horn mouth 21, horn-like apparatus receptacle 2 adopts the molding of ABS hard plastic injection molding, the elongated end of water-supply-pipe interface 3 is provided with screw thread, the present embodiment, screw thread on water-supply-pipe interface 3 elongated ends is external screw thread, and the distance of extending bell-mouthed big opening end is 50mm.
When use, this two-chamber sheath pipe is inserted to ureter via patient's urethra, set up the operating walk way that far-end is positioned at renal pelvis, near-end and is positioned at external orifice of urethra, ureter soft lens enters patient's renal pelvis via main service aisle and carries out rubble operation, water-supply-pipe interface can connect water injection pipe by external screw thread, in art, can assist and rinse and pour into, also can be by waterflood path to patient's renal pelvis injection water soluble drug.After rubble has operated, ureter soft lens exits main service aisle, doctor continues to inject low-pressure water by waterflood path to patient's renal pelvis, renal pelvis is rinsed to perfusion, in renal pelvis, form and carry calculus particle after low pressure eddy current and flow into main service aisle and flow out, calculus particle is discharged in patient body, reduce postoperative residual stones complication, this two-chamber sheath pipe can be used as disposable use.
Claims (6)
1. the two-chamber working sheath of a ureter soft lens, it is characterized in that: described two-chamber working sheath comprises for stretching into the two-chamber sheath pipe (1) in body and being located at the horn-like apparatus receptacle (2) of two-chamber sheath pipe near-end, described two-chamber sheath pipe (1) is the flexible pipe of length 300～500mm, described two-chamber sheath pipe (1) is provided with two access openings that axially run through, one of them is main service aisle (11), the hole girth of this main service aisle (11) is 13～15mm, another is waterflood path (12), the hole girth of this waterflood path (12) is 3～5mm, the main service aisle (11) of two-chamber sheath pipe (1) and the distal port of waterflood path (12) are all positioned at the same axial end of two-chamber sheath pipe (1), the osculum end of described horn-like apparatus receptacle (2) is fixedly connected with two-chamber sheath pipe (1), horn-like apparatus receptacle (2) has the horn mouth (21) being communicated with main service aisle (11) and the water-supply-pipe interface (3) being communicated with waterflood path (12), described water-supply-pipe interface (3) is positioned at the lateral wall of apparatus receptacle (2), water-supply-pipe interface (3) extends the big opening end of horn mouth (21).
2. the two-chamber working sheath of ureter soft lens according to claim 1, is characterized in that: described two-chamber sheath pipe (1) adopts vinyon to make.
3. the two-chamber working sheath of ureter soft lens according to claim 1 and 2, is characterized in that: on the outer peripheral face of described two-chamber sheath pipe (1), apply politef lubricant coating.
4. the two-chamber working sheath of ureter soft lens according to claim 1, is characterized in that: described horn-like apparatus receptacle (2) adopts the molding of ABS hard plastic injection molding.
5. the two-chamber working sheath of ureter soft lens according to claim 1, is characterized in that: the near-end of the osculum end of described horn-like apparatus receptacle (2) and two-chamber sheath pipe (1) is fixed by bonding or heat seal.
6. the two-chamber working sheath of ureter soft lens according to claim 1, is characterized in that: the elongated end of described water-supply-pipe interface (3) is provided with screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410095970.4A CN103815864A (en) | 2014-03-17 | 2014-03-17 | Double-cavity work sheath of flexible ureteroscope |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410095970.4A CN103815864A (en) | 2014-03-17 | 2014-03-17 | Double-cavity work sheath of flexible ureteroscope |
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| CN103815864A true CN103815864A (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410095970.4A Pending CN103815864A (en) | 2014-03-17 | 2014-03-17 | Double-cavity work sheath of flexible ureteroscope |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104490428A (en) * | 2014-12-24 | 2015-04-08 | 王军 | Urethra extension tube used for electrocision for external urethral orifice |
| CN105708406A (en) * | 2016-03-28 | 2016-06-29 | 刘彬 | Visible ureter soft endoscopic sheath |
| CN115005927A (en) * | 2022-07-14 | 2022-09-06 | 攀钢集团总医院 | Calculus grabber for urology department |
| WO2024045715A1 (en) * | 2022-08-31 | 2024-03-07 | 湖南省华芯医疗器械有限公司 | Ureter sheath and device for inserting same in human ureter |
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| US20040097881A1 (en) * | 2002-11-15 | 2004-05-20 | Applied Medical Resources Corporation | Kink-resistant access sheath and method of making same |
| US20040204629A1 (en) * | 2003-04-08 | 2004-10-14 | Knapp Tracey E. | Ureteral access sheath |
| US20050222581A1 (en) * | 2004-03-30 | 2005-10-06 | Vance Products Incorporated, D/B/A | Multiple lumen access sheath |
| CN2768659Y (en) * | 2005-02-07 | 2006-04-05 | 大连医科大学附属第二医院 | Ureteroscope passage sheath |
| CN201643344U (en) * | 2010-04-29 | 2010-11-24 | 陈彤 | Conveniently washed catheter |
| CN202161353U (en) * | 2011-06-22 | 2012-03-14 | 武洪林 | Ureteroscope outer sheath with operation duct |
-
2014
- 2014-03-17 CN CN201410095970.4A patent/CN103815864A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040097881A1 (en) * | 2002-11-15 | 2004-05-20 | Applied Medical Resources Corporation | Kink-resistant access sheath and method of making same |
| US20040204629A1 (en) * | 2003-04-08 | 2004-10-14 | Knapp Tracey E. | Ureteral access sheath |
| US20050222581A1 (en) * | 2004-03-30 | 2005-10-06 | Vance Products Incorporated, D/B/A | Multiple lumen access sheath |
| CN2768659Y (en) * | 2005-02-07 | 2006-04-05 | 大连医科大学附属第二医院 | Ureteroscope passage sheath |
| CN201643344U (en) * | 2010-04-29 | 2010-11-24 | 陈彤 | Conveniently washed catheter |
| CN202161353U (en) * | 2011-06-22 | 2012-03-14 | 武洪林 | Ureteroscope outer sheath with operation duct |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104490428A (en) * | 2014-12-24 | 2015-04-08 | 王军 | Urethra extension tube used for electrocision for external urethral orifice |
| CN105708406A (en) * | 2016-03-28 | 2016-06-29 | 刘彬 | Visible ureter soft endoscopic sheath |
| CN115005927A (en) * | 2022-07-14 | 2022-09-06 | 攀钢集团总医院 | Calculus grabber for urology department |
| WO2024045715A1 (en) * | 2022-08-31 | 2024-03-07 | 湖南省华芯医疗器械有限公司 | Ureter sheath and device for inserting same in human ureter |
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Application publication date: 20140528 |