CN111202560B - Disposable stone-taking basket - Google Patents

Disposable stone-taking basket Download PDF

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Publication number
CN111202560B
CN111202560B CN202010123951.3A CN202010123951A CN111202560B CN 111202560 B CN111202560 B CN 111202560B CN 202010123951 A CN202010123951 A CN 202010123951A CN 111202560 B CN111202560 B CN 111202560B
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basket
tube
push rod
operation handle
push
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CN111202560A (en
Inventor
侯俊清
李松
赵振华
张建华
王震
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/22Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/221Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods
    • A61B17/22Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
    • A61B17/221Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
    • A61B2017/2212Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions having a closed distal end, e.g. a loop

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  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

A disposable stone removal basket, comprising: basket operation subassembly, basket subassembly and basket conveying assembly, basket conveying assembly is including carrying outer tube and inner tube, its characterized in that: the basket operation assembly comprises a first spring, a pulley, push-pull buttons, a push rod, a sheath tube and an operation handle, wherein the sheath tube is arranged on one side of the operation handle, the sheath tube is fixedly connected with the operation handle, the push rod is arranged between the sheath tube and the operation handle, the push-pull buttons are fixedly connected with the upper ends of the push rod, clamping grooves are formed in one side of the operation handle, fixing buttons are arranged in the clamping grooves and used for enabling the basket assembly to be completely contracted in the conveying outer tube, the operation handle is of a hollow structure, the pulley is arranged in the operation handle, one end of the push rod is embedded in the pulley, and the other end of the push rod is inserted with the sheath tube. The stone taking basket can not only be used for taking out larger stones, but also avoid the occurrence of the incarceration phenomenon, and can effectively avoid the incarceration phenomenon.

Description

Disposable stone-taking basket
Technical Field
The invention relates to the technical field of medical instruments, in particular to a disposable stone-taking basket.
Background
Currently, with the development of endoscope technology and other related technologies, various endoscope technologies are widely applied to urinary calculi and digestive tract calculi, and their minimally invasive technology has become an important technology in the medical industry. The treatment of urinary calculi (kidney calculi and ureteral calculi) and biliary calculi generally employs a minimally invasive lithotomy method. Under the assistance of an endoscope, stones or foreign bodies at corresponding positions are taken out by adopting a stone taking basket, and the stones at the corresponding positions are fixed for stone breaking, so that the technology belongs to a safe, economical and convenient treatment method with less pain.
The currently commonly used stone-taking basket is shown in figure 11 of the specification, and the device consists of a basket assembly, a conveying assembly and an operating handle. The basket assembly comprises a stone taking basket and a second head end cap, the front section of the basket is connected with the second head end cap, the rear end of the basket is connected with a traction rope, and the basket is composed of memory metal wires; the conveying assembly comprises a conveying guide pipe and a traction rope, and the traction rope is inserted into the conveying guide pipe; the operating handle includes a sliding rail and a sliding assembly.
As shown in fig. 12 of the drawings of the specification, a stone removal basket is inserted into a stone position through a ureteroscope, so that the head end of the basket contracted in a conveying catheter is aligned with the gap direction of the edge of the stone, and the stone removal basket passes through the stone.
As shown in fig. 13 of the drawings of the specification, when the finger collar of the operating handle is folded, the stone removing basket is fully opened.
As shown in figure 14 of the drawings in the specification, the operating handle is pushed, and stones completely enter the stone-taking basket through the gap of the stone-taking basket, and at the moment, the operating handle is withdrawn to bring out the stones.
At present, the stone taking basket commonly adopted in the prior art is shown as the attached drawing 11 of the specification, the stone taking basket is composed of a plurality of elliptic or spiral memory metal wires, when a stone is taken in a sleeved mode, the basket is opened in one step and is completely pulled by mechanical thrust, the stone is taken in through the wire spacing between adjacent wires of the basket (shown as the attached drawing 10, the attached drawing 11 and the attached drawing 12 of the specification), the biggest defect is that the stone with the diameter larger than the wire spacing is difficult to take in a sleeved mode, repeated taking is often needed, in addition, when a larger stone is taken in, if the stone cannot pass through a narrow ureter or a pipeline, the phenomenon of incarceration occurs, the basket and the stone are enabled to be blocked in the narrow ureter or the narrow pipeline together, and at the moment, the phenomenon of tearing or perforation and the like can be possibly caused by the hard pulling basket, so that dangerous complications are caused.
There is a need for a disposable stone removal basket that solves the above-described problems.
Disclosure of Invention
Aiming at the problems, the invention aims to provide the stone taking basket which can not only sleeve larger stones, but also avoid the phenomenon of incarceration, the stones of a patient can be taken out along with the retraction of the basket operating handle, if the stones cannot be taken out due to the reasons such as stones or ureters, the incarceration is caused, and at the moment, the push-pull button can be pushed to separate the inner tube to collect the basket wires, and the basket is closed, so that the incarceration can be effectively avoided.
The technical scheme adopted by the invention for solving the technical problems is as follows: a disposable stone removal basket, comprising: basket operation subassembly, basket subassembly and basket conveying assembly, basket conveying assembly is including carrying outer tube and inner tube, its characterized in that: the utility model provides a net basket operation subassembly is including first spring, coaster, push-and-pull button, push rod, sheath pipe and operating handle, the sheath pipe sets up in one side of operating handle, the sheath pipe with mutual fixed connection between the operating handle, the push rod sets up between sheath pipe and operating handle, the upper end fixedly connected with push-and-pull button at the push rod the draw-in groove has been seted up to one side of operating handle, is provided with fixed button in the draw-in groove, fixed button is used for making net basket subassembly shrink completely in carrying the outer tube, operating handle is hollow structure, the coaster sets up operating handle's inside, the one end of push rod inlays the card in the inside of coaster, the other end of push rod with the sheath pipe alternates mutually, carry the outer tube to be established in the outside of inner tube, net basket subassembly fixed connection is in carrying the one end of outer tube, net basket subassembly can shrink completely in carrying the outer tube.
Further, the basket assembly comprises two separation inner pipes and a basket formed by a plurality of basket wires, the two separation inner pipes pass through the inner part of the conveying outer pipe, the two separation inner pipes are made of memory metal materials and are in an everting state, the two separation inner pipes move into a single inner pipe in the conveying outer pipe, and the push-pull button can push the separation inner pipes from right to left, so that the separation inner pipes are opened, the basket is in a semi-open state, and stones are located in the center of the basket.
Further, 8-16 mesh basket wires are arranged, the mesh basket wires are memory metal wires with circular, elliptic or spiral memory metal wires, and the mesh basket wires are respectively arranged in the two separation inner pipes.
Further, the front end of the basket is provided with a first head cap, and the front end of the basket is fixedly connected with the first head cap.
Further, the inside of coaster is provided with first spring, the one end of first spring with the bottom of coaster is fixed connection each other, the other end of first spring with the bottom of push rod is fixed connection each other.
Further, a traction wire sliding channel is formed in the pushing rod, a traction wire is arranged in the traction wire sliding channel, the traction wire is arranged in the inner tube, one end of the traction wire penetrates through the pushing rod and the first spring, and the traction wire is fixedly connected with the tail end of the pulley.
Further, a second spring is arranged between the pulley and the operating handle, and the tail end of the outer side of the pulley is connected with the bottom end inside the operating handle through the second spring.
Further, the operating handle and the sheath tube are integrally injection molded.
Further, the push-pull button can be pulled back left to right, so that the separation inner tube is retracted into the outer tube, and the basket is opened.
The invention has the advantages that: the invention provides a disposable stone-taking basket, which is opened in two steps when a stone is taken in a sleeving way, wherein the stone-taking basket is inserted into a stone position through a ureter in the first step, so that the head end of the basket contracted in a conveying catheter is aligned to the clearance direction of the edge of the stone, the basket penetrates through the stone, a push-pull button is pushed from right to left to open a separation inner tube, and the basket is in a semi-open state and is positioned in the center of the basket; and secondly, pulling the push-pull button back from left to right to enable the separation inner tube to retract into the outer tube, and enabling the basket to be in a 360-degree open state at the moment so as to take out stones. The calculus can be taken out along with the retraction of the basket operating handle, if the calculus cannot be taken out due to the calculus or ureter and the like, the incarceration phenomenon is generated, the push-pull button can be pushed at the moment, so that the separation inner tube is used for gathering the basket wires, and the basket is closed, thereby effectively avoiding the incarceration phenomenon.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of the invention for fully opening the basket to extract stones.
FIG. 2 is a schematic cross-sectional view of the present invention with the basket half open.
FIG. 3 is a schematic cross-sectional view of the present invention with the basket fully open.
Fig. 4 is a schematic diagram of the structure of the basket for taking stones when the basket is fully opened.
Fig. 5 is a schematic diagram of the structure of the basket for taking stones when the basket is half-opened.
FIG. 6 is a schematic diagram of the basket structure of the present invention when the basket is fully closed.
FIG. 7 is a schematic view of the present invention in partial cross-sectional configuration with the basket retracted into the outer tube.
Fig. 8 is an enlarged schematic view of the partial anatomy of the delivery assembly of the present invention.
Fig. 9 is a schematic perspective view of the basket of the present invention when the basket is half opened.
Fig. 10 is a schematic perspective view of the basket according to the present invention when the basket is fully closed.
Fig. 11 is a schematic view of the overall structure of a stone removal basket according to the prior art.
Figures 12-14 are schematic views of the continuous dynamic function of a prior art stone removal basket sheath for removing stones.
Wherein:
100. a basket operating assembly; 101. A clamping groove; 102. A fixed button;
103. a first spring; 104. A second spring; 105. A pulley;
106. traction wire; 107. Pushing and pulling a button; 108. A push rod;
109. A sheath; 110. An operation handle; 200. A basket delivery assembly;
201. conveying the outer tube; 202. An inner tube; 300. A basket assembly;
301. a basket; 302. A first cap; 303. Separating the inner tube;
304. basket wires; 401. A second head cap; 402. A stone-taking basket;
403. a delivery catheter; 404. A sliding guide rail; 405. finger collar
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that unless explicitly stated and limited otherwise, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, but rather the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1:
Fig. 1 is a perspective view of a basket for fully opening and extracting stones according to the present invention, fig. 2 is a cross-sectional view of a basket for fully opening, fig. 3 is a cross-sectional view of a basket for fully opening, fig. 4 is a basket for fully opening, fig. 5 is a basket for fully opening, fig. 6 is a basket for fully closing, fig. 7 is a partial cross-sectional view of a conveying assembly, fig. 8 is an enlarged partial structure of a conveying assembly, fig. 9 is a perspective view of a basket for half opening, Fig. 10 is a schematic view of a three-dimensional structure of the present invention when the basket is fully closed, as shown in fig. 1,2, 3, 4, 5, 6, 7, 8, 9 and 10, comprising: basket operation assembly 100, basket 301 assembly 300 and basket delivery assembly 200, basket delivery assembly 200 comprises outer tube 201 and inner tube 202, and is characterized in that: the basket operation assembly 100 comprises a first spring 103, a pulley 105, a push-pull button 107, a push rod 108, a sheath 109 and an operation handle 110, wherein the sheath 109 is arranged on one side of the operation handle 110, The sheath tube 109 is fixedly connected with the operation handle 110, the pushing rod 108 is arranged between the sheath tube 109 and the operation handle 110, the push button 107 is fixedly connected with the upper end of the pushing rod 108, the clamping groove 101 is arranged on one side of the operation handle 110, the fixing button 102 is arranged in the clamping groove 101, the fixing button 102 is used for completely shrinking the basket 301 assembly 300 in the conveying outer tube 201, the operation handle 110 is of a hollow structure, the pulley 105 is arranged in the operation handle 110, one end of the pushing rod 108 is embedded and clamped in the pulley 105, The other end of the pushing rod 108 is inserted into the sheath tube 109, the outer conveying tube 201 is sleeved outside the inner conveying tube 202, the basket 301 assembly 300 is fixedly connected to one end of the outer conveying tube 201, the basket 301 assembly 300 can be completely contracted in the outer conveying tube 201, the basket 301 assembly 300 comprises two inner separating tubes 303 and a basket 301 formed by a plurality of basket 301 wires, the two inner separating tubes 303 pass through the inner conveying tube 201, the two inner separating tubes 303 are made of memory metal materials and are in an everting state, the two inner separating tubes 303 move in the outer conveying tube 201 as a single inner tube 202, The push-pull button 107 can push from right to left, so as to open the separation inner tubes 303, make the basket 301 in a semi-open state, and make stones located in the center of the basket 301, the wires of the basket 301 are 8-16 memory wires with round, oval or spiral memory wires, the wires of the basket 301 are respectively arranged in the two separation inner tubes 303, the front end of the basket 301 is provided with a first head cap 302, the front end of the basket 301 and the first head cap 302 are fixedly connected with each other, the inside of the pulley 105 is provided with a first spring 103, One end of the first spring 103 is fixedly connected with the bottom of the pulley 105, the other end of the first spring 103 is fixedly connected with the bottom of the pushing rod 108, a traction wire 106 sliding channel is arranged in the pushing rod 108, a traction wire 106 is arranged in the traction wire 106 sliding channel, the traction wire 106 is arranged in the inner tube 202, one end of the traction wire 106 penetrates through the pushing rod 108 and the inside of the first spring 103 and is fixedly connected with the tail end of the pulley 105, a second spring 104 is arranged between the pulley 105 and the operating handle 110, The tail end of the outer side of the pulley 105 is connected with the bottom end inside the operating handle 110 through the second spring 104, the operating handle 110 and the sheath tube 109 are integrally injection molded, and the push-pull button 107 can be pulled back from left to right, so that the separation inner tube 303 is retracted into the outer tube, and the basket 301 is in an open state.
The working mode is as follows: the invention provides a disposable stone-taking basket, which comprises the following steps:
1. Firstly, an operator presses a fixing button in the clamping groove to enable the basket assembly to be completely contracted in the conveying outer tube (shown in an attached drawing figure 3, an attached drawing figure 6 and an attached drawing figure 10).
2. The operating personnel inserts the stone taking basket into the position of the patient stone through the ureteroscope, and pushes the push-pull button (shown in the specification drawing figure 2 and the specification drawing figure 9) on the operating handle from right to left, at the moment, the fixing button is fixed in the clamping groove, and the basket is in a half-open state (shown in the specification drawing figure 5) because the inner pipe and the basket are separated and delivered out of the outer pipe together.
3. When stones completely enter the center of the semi-opened basket, an operator pulls the push-pull button from left to right (as shown in the attached drawing figure 1 and the attached drawing figure 3 of the specification), at the moment, the separation inner tube is retracted into the conveying outer tube along with the inner tube, and the basket is completely opened due to the tension of the separation inner tube, so that the stones are completely sleeved into the net (as shown in the attached drawing figure 4 of the specification)
4. The operator slowly pulls out the ureteroscope and the operating handle until the calculus is carried out of the body.
5. Repeating the steps 1-2-3-4 until the calculus in the ureter is completely removed.
6. If the incarceration phenomenon occurs in the process of taking out the stones, an operator can push the push-pull button to enable the basket to be in a half-open state again, and incarceration can be effectively avoided (as shown in figure 6 of the specification and the attached drawing).
It should be emphasized that the above description is merely illustrative of the ureteroscope of the present invention using the novel structure, and not limiting the field of application of the present invention, and the present invention is equally applicable to the matched devices of endoscopes such as choledochoscope, duodenoscope, gastroscope, cystoscope, and nephroscope.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (8)

1. A disposable stone removal basket, comprising: basket operation subassembly, basket subassembly and basket conveying assembly, basket conveying assembly is including carrying outer tube and inner tube, its characterized in that: the basket operation assembly comprises a first spring, a pulley, a push-pull button, a push rod, a sheath tube and an operation handle, wherein the sheath tube is arranged on one side of the operation handle, the sheath tube is fixedly connected with the operation handle, the push rod is arranged between the sheath tube and the operation handle, the push-pull button is fixedly connected with the upper end of the push rod, a clamping groove is formed in one side of the operation handle, a fixing button is arranged in the clamping groove and used for enabling the basket assembly to be completely contracted in a conveying outer tube, the operation handle is of a hollow structure, the pulley is arranged in the operation handle, one end of the push rod is embedded and clamped in the pulley, the other end of the push rod is inserted into the sheath tube, the conveying outer tube is sleeved outside the inner tube, the basket assembly is fixedly connected with one end of the conveying outer tube, and the basket assembly can be completely contracted in the conveying outer tube;
The basket assembly comprises two separation inner pipes and a basket formed by a plurality of basket wires, wherein the two separation inner pipes pass through the inner part of the conveying outer pipe, the two separation inner pipes are made of memory metal materials and are in an everting state, the two separation inner pipes move into a single inner pipe in the conveying outer pipe, and the push-pull button can push the separation inner pipes from right to left, so that the separation inner pipes are opened, the basket is in a semi-open state, and stones are positioned in the center of the basket.
2. A disposable stone removal basket according to claim 1, wherein: the basket wires are 8-16, are memory metal wires with circular, elliptic or spiral memory metal wires, and are respectively arranged in the two separated inner pipes.
3. A disposable stone removal basket according to claim 1, wherein: the front end of the basket is provided with a first head end cap, and the front end of the basket is fixedly connected with the first head end cap.
4. A disposable stone removal basket according to claim 1, wherein: the inside of coaster is provided with first spring, the one end of first spring with the bottom of coaster is fixed connection each other, the other end of first spring with the bottom of push rod is fixed connection each other.
5. A disposable stone removal basket according to claim 4 wherein: the inside of push rod is provided with the traction wire and slides the passageway, is provided with the traction wire in traction wire and slides the inside of passageway, and the traction wire sets up in the inside of inner tube, and the one end of traction wire passes push rod and the inside of first spring, and with the mutual fixed connection of tail end of coaster.
6. A disposable stone removal basket according to claim 1, wherein: the second spring is arranged between the pulley and the operating handle, and the tail end of the outer side of the pulley is connected with the bottom end inside the operating handle through the second spring.
7. A disposable stone removal basket according to claim 1, wherein: the operating handle and the sheath tube are integrally injection molded.
8. A disposable stone removal basket according to claim 1, wherein: the push-pull button can be pulled back from left to right, so that the separation inner tube is retracted into the outer tube, and the separation inner tube is retracted into the outer tube, so that the basket is in an open state.
CN202010123951.3A 2020-02-27 2020-02-27 Disposable stone-taking basket Active CN111202560B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111467001A (en) * 2020-06-05 2020-07-31 成都安捷畅医疗科技有限公司 basket
CN112790829B (en) * 2021-01-22 2022-04-26 苏州法兰克曼医疗器械有限公司 High-stability basket for taking out calculus
CN115040198B (en) * 2022-06-27 2025-06-06 广东斐尔医疗科技有限公司 Rotating stone basket
CN117338374B (en) * 2023-10-07 2024-09-27 上海威高医疗技术发展有限公司 Basket stone taking device
CN222426139U (en) * 2024-04-28 2025-02-07 湖南省华芯医疗器械有限公司 Driving and controlling handle and stone taking basket

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JP2013000219A (en) * 2011-06-14 2013-01-07 Nippon Zeon Co Ltd Medical basket type treatment instrument
CN204446016U (en) * 2015-01-05 2015-07-08 安瑞医疗器械(杭州)有限公司 A kind of Microendoscopic stone extraction basket
CN106510795B (en) * 2016-12-05 2019-08-09 温州市人民医院 Releasable choledochoscope stone extraction basket

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