CN112842459B - Clear stone pipe structure - Google Patents
Clear stone pipe structure Download PDFInfo
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- CN112842459B CN112842459B CN202011615970.4A CN202011615970A CN112842459B CN 112842459 B CN112842459 B CN 112842459B CN 202011615970 A CN202011615970 A CN 202011615970A CN 112842459 B CN112842459 B CN 112842459B
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- Prior art keywords
- conduit
- hole
- spiral groove
- sleeve
- rotational flow
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22038—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with a guide wire
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22079—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with suction of debris
Abstract
The invention discloses a stone removing conduit structure, which comprises a rotational flow sleeve and a handle, wherein a conduit is connected between the rotational flow sleeve and the handle, the conduit comprises an inner conduit and an outer conduit, one end of the inner conduit is coaxially fixed in a central hole of the rotational flow sleeve, the other end of the inner conduit is fixed in the handle, one end of the outer conduit is coaxially fixed on the outer surface of the front end of the rotational flow sleeve, the other end of the outer conduit is fixed in the handle, an outer spiral groove is formed in the outer surface of the rotational flow sleeve, a water outlet hole communicated with the outer spiral groove is formed in the front end of the outer conduit, a gap between the outer conduit and the inner conduit is a water injection channel, and a suction pipe joint communicated with the inner conduit and a water injection pipe joint communicated with the water injection channel are arranged on the handle. The front end of the water injection channel can output spiral water flow through the outer spiral groove, and a suction vortex of a central hole can be formed by matching with the suction of the central hole of the spiral sleeve, so that the discharge of crushed stones and water liquid is accelerated; the stone removing catheter structure can be used as an independent instrument to be matched with a ureteral sheath for use, and can discharge large-size stones.
Description
Technical Field
The invention relates to the technical field of stone operation equipment, in particular to a stone removing catheter structure.
Background
At present, in percutaneous nephrolithotripsy and ureter-based soft-mirror lithotripsy operations, after stone in kidney is broken into powder or fine particles by holmium laser, one part of stone can be washed and discharged in the operation, more general stone is discharged together with urine after passing through the kidney, ureter, bladder and urethra of human body after the operation, if the residual stone can not be discharged in time, the stone is easy to form in vivo again, and more serious, the stone operation needs to be carried out again, therefore, if the stone operation can be carried out while the stone operation is carried out, the operation effect can be greatly improved, the risk that the residual stone can not be discharged is reduced, and the pain and worry of patients are relieved. Based on this, the prior art improves the endoscope catheter front end cap, two rear water outlet holes with angles are added on the outer circular surface of the side of the front end cap and are communicated with the water injection channel, when the water injection channel injects water into the kidney, the water flow is divided into the two rear water outlet holes by the pressure of water generated by the aperture tapering of the tail end of the water injection channel to form backward water flow, after the front end cap enters the renal calyx for holmium laser lithotripsy in an operation, the lithotripsy can be disturbed by the forward water injection channel, and then the lithotripsy is discharged by backward water discharge, so the method has a great contribution to the discharge of the residual stone, but still has the defects that: 1. the rear water outlet needs to be divided by the pressure of front water injection, so that the control problem of water pressure exists, and the insufficient water pressure of water injection can cause the insufficient rear water outlet amount and weaken the stone discharging effect; the excessive water pressure of water injection can cause the pressure in the kidney to rise, and brings risks to the operation. 2. The crushed stone discharged backwards needs to be discharged through a gap between the endoscope catheter and the ureteral sheath, so that the crushed stone with large size is difficult to discharge, and the existing equipment size is taken as an example for explanation: the average size of the inner hole 12Fr of the ureteral sheath, the outer diameter of the endoscope catheter 8.4Fr and the unilateral clearance is 1.8Fr, namely 0.6mm, so the maximum width of the gravel which can be reliably discharged is 0.6mm, and the gravel exceeding the size is difficult to discharge.
Disclosure of Invention
The invention aims to solve the defects of the background technology and provide a calculus removing catheter structure which can effectively control water injection pressure, ensure calculus removing effect and operation safety and can effectively remove large-size calculus.
In order to achieve the purpose, the invention designs a stone removing conduit structure, which is characterized in that: it includes whirl sleeve and handle, be connected with the pipe between whirl sleeve and the handle, the pipe include outer pipe and coaxial set up in interior pipe in the outer pipe, the axial tube hole of interior pipe is the negative pressure suction passageway, outer pipe with clearance between the interior pipe is the water injection passageway, the coaxial ring platform that is fixed with in front end of whirl sleeve, the one end of interior pipe is fixed in the handle, the other end coaxial fixation in the telescopic centre bore of whirl, the one end of outer pipe is fixed in the handle, the other end coaxial fixation in the ring platform, the inner wall of outer pipe with there is the clearance between the telescopic outer wall of whirl, outer spiral groove has been seted up on the telescopic surface of whirl, set up on the front end lateral wall of outer pipe with the apopore of outer spiral groove intercommunication, be provided with on the handle with the suction pipe joint of negative pressure suction passageway intercommunication and with the water injection pipe joint of water injection passageway intercommunication.
Furthermore, the front end face of the outer guide pipe is coaxially fixed on the rear end face of the annular table.
Furthermore, the front end of outer spiral groove is located the rear of loop platform, outer spiral groove's front end is provided with can make through outer spiral groove's water to outer spiral groove's rear flow guide structure.
Furthermore, the flow guide structure is a flow guide plate fixed on the groove wall at the top of the front end of the outer spiral groove, the flow guide plate and the groove wall of the outer spiral groove enclose a water return cavity with a closed front end and a water outlet at the rear end, and the side wall at the front end of the outer conduit is provided with the water outlet hole communicated with the water outlet at the rear end of the water return cavity.
Furthermore, the circumference of the rotational flow sleeve is provided with a plurality of outer spiral grooves at intervals, and the circumference pipe wall of the front end of the outer conduit is provided with a plurality of water outlet holes corresponding to the outer spiral grooves.
Furthermore, the central hole of the rotational flow sleeve comprises a tapered hole positioned in the front end of the rotational flow sleeve and a suction tube fixing hole positioned in the rear end of the rotational flow sleeve, the inner guide tube is coaxially fixed in the suction tube fixing hole, and the aperture of the front end of the tapered hole is larger than that of the rear end of the tapered hole.
Furthermore, a transition straight hole is connected between the suction tube fixing hole and the tapered hole, the aperture of the rear end of the tapered hole is the same as that of the transition straight hole, and the aperture of the transition straight hole is the same as the inner diameter of the inner conduit.
Furthermore, an inner spiral groove is formed in the hole wall of the central hole of the spiral flow sleeve.
Furthermore, a plurality of inner spiral grooves are formed in the central hole of the spiral flow sleeve at intervals along the circumferential hole wall.
The invention has the beneficial effects that:
1. the front end of the water injection channel can output spiral water flow through the spiral groove, and a suction vortex of a central hole can be formed by matching with the suction of the central hole of the rotational flow sleeve, so that the discharge of crushed stones and water liquid is accelerated;
2. the stone removing catheter structure can be used as an independent instrument to be matched with a ureteral sheath, broken stones are discharged by the suction of the inner catheter, the diameter of the inner catheter can be increased, and large-size stones can be discharged;
3. by controlling the pressure of water injection and suction, the balance of water injection and suction can be ensured, no extra pressure can be generated on the kidney, and the risk of intra-renal pressure change in the operation is reduced;
4. the stone removing catheter structure can be combined with a snake bone, a traction steel wire rope, an operation handle and other catheter bending devices to carry out implantation design to realize bending of the head end, the corresponding calyx can be conveniently entered by means of the fiber scope, the fiber scope is withdrawn after the corresponding calyx is reached, and the stone removing process of the corresponding calyx is carried out.
Drawings
FIG. 1 is a first perspective view of a stone removing conduit according to the present invention;
FIG. 2 is a second perspective view of the stone removing duct structure of the present invention;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is a top view of the stone removing duct structure of the present invention;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;
FIG. 6 is an enlarged view at C of FIG. 5;
FIG. 7 is an enlarged view of FIG. 5 at D;
FIG. 8 is a perspective view of a swirl sleeve having an outer helical groove of the present invention;
FIG. 9 is a front view of a swirl sleeve having an outer helical groove of the present invention;
FIG. 10 is a cross-sectional view E-E of FIG. 9;
FIG. 11 is a perspective view of a swirl sleeve having inner and outer helical grooves according to the present invention;
FIG. 12 is a second perspective view of a swirl sleeve having inner and outer helical grooves according to the present invention;
FIG. 13 is a front view of a swirl sleeve having inner and outer helical grooves according to the present invention;
FIG. 14 is a cross-sectional view F-F of FIG. 13;
the device comprises a cyclone sleeve, a conduit (2.1-inner conduit, 2.2-outer conduit), a handle (3), an outer spiral groove (4), a water outlet (5), a water injection channel (6), a suction pipe joint (7), a water injection pipe joint (8), a circular platform (9), a guide plate (10), a tapered hole (11), a transition straight hole (12), a suction pipe fixing hole (13), an inner spiral groove (14) and a negative pressure suction channel (15).
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
The stone removing catheter structure shown in fig. 1-14 comprises a rotational flow sleeve 1 and a handle 3, and a catheter 2 is connected between the rotational flow sleeve 1 and the handle 3.
The front end of the rotational flow sleeve 1 is coaxially provided with a circular platform 9, a plurality of outer spiral grooves 4 are arranged on the circumferential surface of the rotational flow sleeve 1 at intervals, the front ends of the outer spiral grooves 4 are positioned behind the circular platform 9, a guide plate 10 is fixed on the top groove wall of the front end of each outer spiral groove 4, and the guide plate 10 and the groove wall of each outer spiral groove 4 form a water return cavity with a closed front end and water outlet at the rear end. The centre bore of whirl sleeve 1 is including lieing in the inside bell mouth 11 of whirl sleeve 1 front end and lieing in the inside pipe fixed orifices 13 that attracts of 1 rear end of whirl sleeve, attracts to be connected with transition straight hole 12 between pipe fixed orifices 13 and the bell mouth 11, and the front end aperture of bell mouth 11 is greater than the rear end aperture of bell mouth 11, and the rear end aperture of bell mouth 11 is the same with the aperture of transition straight hole 12, and the aperture of transition straight hole 12 is the same with inner catheter 2.1's internal diameter. A plurality of inner spiral grooves 14 (forming water absorption vortex and accelerating the discharge of broken stones and water liquid) are arranged in the central hole of the rotational flow sleeve 1 at intervals along the circumferential hole wall, the front ends of the inner spiral grooves 14 are connected with the rear end hole wall of the tapered hole 11, and the rear ends of the inner spiral grooves 14 are connected with the rear end hole wall of the transition straight hole 12.
The catheter 2 comprises an inner catheter 2.1 and an outer catheter 2.2, one end of the inner catheter 2.1 is coaxially fixed in the suction tube fixing hole 13, the other end of the inner catheter is fixed in the handle 3, the front end face of the outer catheter 2.2 is fixed on the rear end face of the annular table 9, and the other end of the outer catheter is fixed in the handle 3. The front end of the outer conduit 2.2 is provided with a plurality of water outlet holes 5 communicated with the water outlet at the rear end of the backwater cavity. A gap between the outer catheter 2.2 and the inner catheter 2.1 is a water injection channel 6, an axial pipe hole of the inner catheter 2.1 is a negative pressure suction channel 15, and the handle 3 is provided with a suction pipe joint 7 communicated with the negative pressure suction channel 15 and a water injection pipe joint 8 communicated with the water injection channel 6.
The working process of the invention is as follows: the suction pipe joint 7 is connected with a water suction pump, the water injection pipe joint 8 is connected with a water injection pump, the flow of water suction and water injection is kept the same, so as to balance the pressure in the kidney, the inner conduit 2.1 is connected with the central hole of the rotational flow sleeve 1, the broken stone can be sucked out through the tapered hole 11 at the front end of the rotational flow sleeve 1, the water with the same flow can be injected through the water injection pipe joint 8 and is connected with the outer spiral groove 4 through the water injection channel 6, the injected water is sprayed out after passing through the outer spiral groove 4 to form spiral water flow, the water in the kidney is disturbed, vortex can be formed under the matching of the water suction effect of the tapered hole 11 at the front end of the rotational flow sleeve 1, the discharge of the broken stone and the water liquid is accelerated, and the purpose of quickly cleaning the stone is achieved. The stone removing catheter structure can be used as an independent instrument to be matched with a ureteral sheath, the diameter of a center hole of the rotational flow sleeve 1 can be increased, large-size stones can be discharged, meanwhile, the stone removing catheter structure can be combined with catheter bending devices such as a snake bone, a traction steel wire rope and an operation handle to be implanted to realize bending of the head end, corresponding renal calyx can be conveniently entered by means of a fiberscope, the fiberscope is withdrawn after the stone removing catheter structure reaches the position, and the stone removing process of the corresponding renal calyx is carried out.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the structure of the present invention in any way. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.
Claims (8)
1. A stone removing conduit structure is characterized in that: it comprises a rotational flow sleeve (1) and a handle (3), a conduit (2) is connected between the rotational flow sleeve (1) and the handle (3), the conduit (2) comprises an outer conduit (2.2) and an inner conduit (2.1) coaxially arranged in the outer conduit (2.2), the axial pipe hole of the inner conduit (2.1) is a negative pressure suction channel (15), a gap between the outer conduit (2.2) and the inner conduit (2.1) is a water injection channel (6), a ring platform (9) is coaxially fixed at the front end of the rotational flow sleeve (1), one end of the inner conduit (2.1) is fixed in the handle (3), the other end is coaxially fixed in the central hole of the rotational flow sleeve (1), one end of the outer catheter (2.2) is fixed in the handle (3), the other end is coaxially fixed on the annular table (9), a gap is arranged between the inner wall of the outer conduit (2.2) and the outer wall of the rotational flow sleeve (1), the outer surface of the rotational flow sleeve (1) is provided with an outer rotational flow groove (4), the side wall of the front end of the outer conduit (2.2) is provided with a water outlet hole (5) communicated with the outer spiral groove (4), the handle (3) is provided with a suction pipe joint (7) communicated with the negative pressure suction channel (15) and a water injection pipe joint (8) communicated with the water injection channel (6);
the front end of the outer spiral groove (4) is provided with a flow guide structure which can enable water passing through the outer spiral groove (4) to flow towards the rear part of the outer spiral groove (4); the flow guide structure is a flow guide plate (10) fixed on the groove wall of the top of the front end of the outer spiral groove (4), the flow guide plate (10) and the groove wall of the outer spiral groove (4) enclose a water return cavity with a closed front end and a water outlet at the rear end, and the side wall of the front end of the outer conduit (2.2) is provided with the water outlet hole (5) communicated with the water outlet at the rear end of the water return cavity.
2. A stone removing duct structure as claimed in claim 1, wherein: the front end face of the outer conduit (2.2) is coaxially fixed on the rear end face of the annular table (9).
3. A stone removing duct structure as claimed in claim 2, wherein: the front end of the outer spiral groove (4) is positioned behind the circular table (9).
4. A stone removing duct structure as claimed in claim 1, wherein: the circumference of whirl sleeve (1) is gone up to separate to be equipped with many outer spiral groove (4), seted up on the front end circumference pipe wall of outer pipe (2.2) with many a plurality of that outer spiral groove (4) correspond apopore (5).
5. A stone removing duct structure as claimed in claim 1, wherein: the center hole of whirl sleeve (1) is including being located inside bell mouth (11) of whirl sleeve (1) front end and being located inside suction pipe fixed orifices (13) of whirl sleeve (1) rear end, interior pipe (2.1) coaxial fixation is in attract in pipe fixed orifices (13), the front end aperture of bell mouth (11) is greater than the rear end aperture of bell mouth (11).
6. The stone removing duct structure of claim 5, wherein: the suction tube fixing hole (13) is connected with a transition straight hole (12) between the conical holes (11), the aperture of the rear end of each conical hole (11) is the same as that of the transition straight hole (12), and the aperture of the transition straight hole (12) is the same as that of the inner diameter of the inner catheter (2.1).
7. The stone removing duct structure of claim 6, wherein: an inner spiral groove (14) is formed in the hole wall of the central hole of the spiral flow sleeve (1).
8. The stone removing duct structure of claim 7, wherein: a plurality of inner spiral grooves (14) are arranged in the central hole of the rotational flow sleeve (1) at intervals along the circumferential hole wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011615970.4A CN112842459B (en) | 2020-12-30 | 2020-12-30 | Clear stone pipe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011615970.4A CN112842459B (en) | 2020-12-30 | 2020-12-30 | Clear stone pipe structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112842459A CN112842459A (en) | 2021-05-28 |
| CN112842459B true CN112842459B (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011615970.4A Active CN112842459B (en) | 2020-12-30 | 2020-12-30 | Clear stone pipe structure |
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| CN (1) | CN112842459B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113768618B (en) * | 2021-09-17 | 2023-06-06 | 南充市中心医院 | Urinary system rubble adsorption equipment |
Citations (3)
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|---|---|---|---|---|
| US6830563B1 (en) * | 2001-08-24 | 2004-12-14 | Scott Singer | Syringe tip providing nonlaminar spiral flow and method of use for flushing catheters |
| JP2005147350A (en) * | 2003-11-19 | 2005-06-09 | Nikkiso Co Ltd | Micro-jet generator and thrombus dissolving device |
| CN111031943A (en) * | 2017-04-10 | 2020-04-17 | 密歇根大学董事会 | Hydrodynamic vortex suction duct |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US5634897A (en) * | 1993-10-08 | 1997-06-03 | Lake Region Manufacturing, Inc. | Rheolytic occlusion removal catheter system and method |
| GB9828696D0 (en) * | 1998-12-29 | 1999-02-17 | Houston J G | Blood-flow tubing |
| US20050085769A1 (en) * | 2001-07-17 | 2005-04-21 | Kerberos Proximal Solutions | Fluid exchange system for controlled and localized irrigation and aspiration |
| GB2369797B (en) * | 2001-11-20 | 2002-11-06 | Tayside Flow Technologies Ltd | Helical formations in tubes |
| US7959608B2 (en) * | 2004-04-27 | 2011-06-14 | The Spectranetics Corporation | Thrombectomy and soft debris removal device |
| CN203591513U (en) * | 2013-10-09 | 2014-05-14 | 株洲市瑞邦医疗器材制品有限责任公司 | Spiral type ureter balloon tube |
| WO2015164455A1 (en) * | 2014-04-23 | 2015-10-29 | Gyrus Acmi, Inc. (D.B.A Olympus Surgical Technologies America) | Stone fragment suction device |
| CN110711013A (en) * | 2019-09-27 | 2020-01-21 | 南华大学附属第一医院 | Percutaneous nephrolithotomy calculus removing device and method |
| CN211270665U (en) * | 2019-12-05 | 2020-08-18 | 成都市新都区人民医院 | Ureter soft lens sheath inner core |
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2020
- 2020-12-30 CN CN202011615970.4A patent/CN112842459B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6830563B1 (en) * | 2001-08-24 | 2004-12-14 | Scott Singer | Syringe tip providing nonlaminar spiral flow and method of use for flushing catheters |
| JP2005147350A (en) * | 2003-11-19 | 2005-06-09 | Nikkiso Co Ltd | Micro-jet generator and thrombus dissolving device |
| CN111031943A (en) * | 2017-04-10 | 2020-04-17 | 密歇根大学董事会 | Hydrodynamic vortex suction duct |
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| CN112842459A (en) | 2021-05-28 |
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