CN219230031U - Stone-taking basket assembly and stone-taking basket using same - Google Patents

Abstract

The utility model provides a stone taking basket assembly and a stone taking basket using the same, wherein the stone taking basket assembly adopts a limiting pipe with an opening on the side wall to carry out threading of basket wires, the movable end of the basket wires is fixedly connected with a guy cable, the guy cable can further drive the basket wires to extend or retract, compared with the prior art, the guy cable or an outer sleeve does not drive the limiting pipe to move, the difficulty of the basket wires thinner than the limiting pipe is not easy to occur when the basket wires pass through a curve, the possibility of failure of extending of the basket is reduced, the success rate of urinary stone taking operation is improved, and the risk of operation failure is reduced.

Description

Stone-taking basket assembly and stone-taking basket using same

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a stone-taking basket assembly and a stone-taking basket using the same.

Background

Kidney stones are one of the common diseases of urinary systems, and along with technological development, ureteral soft endoscope lithotripsy and stone extraction are also mature, so that the kidney stones and ureteral upper-segment stones are the main treatment methods.

However, the channel of the urinary system of the human body is not a straight channel, some curves are unavoidable, the end parts of the basket wires of the urinary basket in the prior art are usually fixed in the butt joint pipes, the butt joint pipes are welded and fixed with the stay wires, and the stay wires move back and forth under the control of the handles, so that the expansion or retraction of the basket wires into the outer tube can be controlled, when the curved road is met, the butt joint pipes are clamped in the curved road easily, and the expansion failure of the basket is caused. For example, chinese patent CN112842465a discloses a stone removing basket, where a basket wire needs to pass through a fixed sliding block and finally be connected with a connecting pipe, the connecting pipe is connected with a steel wire rope, and in the process that the steel wire rope moves forward, the steel wire rope needs to drive the connecting pipe, the fixed sliding block and a retainer ring to move forward, so when encountering a narrower curve, the fixed sliding block, the retainer ring and the connecting pipe all become obstacles for the basket wire to pass through the curve, and the pushing of the basket wire is blocked easily, which results in failure to complete the stone removing operation.

Disclosure of Invention

The utility model provides a stone-taking basket assembly and a stone-taking basket using the same, which aim to solve the technical problems.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the stone taking basket assembly comprises at least three basket wires, a limiting pipe and a guide pipe, wherein the guide pipe comprises a fixed end and a plurality of free ends which radiate outwards from the fixed end, each free end is communicated with the fixed end and forms threading pipelines which are mutually independent, and the number of the free ends is the same as that of the basket wires;

the front end of the limiting tube is open, and the side wall of the limiting tube is provided with an opening;

each basket wire comprises a movable end and a limiting end, the movable ends of the basket wires are fixedly connected with the inhaul cables, the limiting ends of the basket wires are fixed at the rear ends of the limiting pipes, the movable ends penetrate out from the free ends of one of the threading pipes, penetrate into the limiting pipes from the free ends of the adjacent threading pipes and are led out from the side wall openings of the limiting pipes.

Further, the basket wires are three, and the guide tube is provided with three free ends.

Further, the limiting end of the basket wires is fixed in the rear end of the limiting tube in a crimping mode, and a groove is formed in the side wall of the rear end of the limiting tube.

Further, the movable ends of the basket wires are partially received in the grooves.

According to another aspect of the utility model, there is also provided a stone removal basket comprising a handle assembly and a stone removal basket assembly connected to the handle assembly, wherein the stone removal basket assembly is any one of the stone removal basket assemblies described above.

Further, the handle assembly comprises an outer sleeve, a handle seat, a pull rope and a push key, the pull rope is arranged in the outer sleeve in a penetrating mode, the outer sleeve extends outwards from one end of the handle seat, the stone taking basket assembly is arranged at the front end of the outer sleeve, and the push key drives the pull rope to move back and forth so that basket wires extend out of or retract back from the guide tube.

Further, the fixed end of the guide tube is fixedly bonded with the outer sleeve, the movable end of the basket wire is fixedly bonded with the inhaul cable, and the limiting tube is suspended in the outer sleeve.

Further, a spring tube or a coated plastic tube is wound on the outer side of the inhaul cable.

Further, the handle subassembly includes outer tube, handle seat, cable and push button, and the cable wears to establish in the outer tube, and the outer tube is outwards extended from the one end of handle seat, gets stone basket subassembly and sets up the front end at the outer tube, and the tail end of handle seat is provided with the fixing base, and the rear end of cable is fixed to be set up on the fixing base, and the front end slidable of handle seat is provided with the slide bar, and the front end and the outer tube of slide bar are fixed relatively, and push button and slide bar are fixed relatively, and operation push button reciprocates, can drive the outer tube and reciprocate, makes basket silk stretch out or withdraw from the guide tube.

Further, the front end of the sliding rod is provided with a sheath pipe, and the rear end of the outer sleeve pipe is fixedly connected with the sheath pipe.

Compared with the prior art, the technical scheme of the utility model has the beneficial effects that:

the utility model provides a stone extraction basket assembly, which adopts a limiting pipe with an opening on the side wall to carry out threading of basket wires, the movable end of the basket wires is fixedly connected with a guy rope, and the guy rope or an outer sleeve can drive the basket wires to extend or retract.

Drawings

FIG. 1 is a schematic view of a prior art stone removal basket assembly;

FIG. 2 is a schematic perspective view of the stone removal basket assembly of the present utility model;

FIG. 3 is a schematic view of another angular stone removal basket assembly (assembled with a cable) according to the present utility model;

FIG. 4 is a schematic view of the structure of the stone removal basket assembly (assembled with the guy cable and the outer sleeve) of the present utility model;

fig. 5 is a perspective view of the stone removal basket of the present utility model.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the present patent; for the purpose of better illustrating the embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and that "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features being referred to; nor does it represent the importance of the components and therefore should not be construed as limiting the utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific dimensions adopted in the present embodiment are only for illustrating the technical solution, and do not limit the protection scope of the present utility model.

The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.

Referring to fig. 1, fig. 1 is a scheme of a stone removing basket assembly in the prior art, in the scheme, one end 2011A of a basket wire 201A is adhered and fixed to an inner wall of an outer sleeve 300A, the other end is fixed in a limiting tube 203A, a rear end of the limiting tube 203A is fixedly connected with a guy cable, when the basket wire 201A needs to be pushed out to grab crushed stone, the limiting tube 203A needs to be pushed forward by the guy cable, and when a narrow or curved road is met, the limiting tube 203A is pushed to be extremely easy to encounter resistance, and the situation that the extending of the basket wire 201A fails easily occurs.

Referring to fig. 2-4, the stone removing basket assembly according to the present embodiment includes at least three basket wires 201, a limiting tube 203 and a guide tube 202, the guide tube 202 includes a fixed end 2021 and a plurality of free ends 2022 radially extending outward from the fixed end 2021, so that the guide tube 202 is similar to a crotch, the plurality of free ends 2022 are respectively communicated with a single fixed end 2021 to form mutually independent threading pipes 2023, but the respective threading pipes 2023 are finally converged at the fixed end 2021, specifically, the number of the free ends 2021 is the same as that of the basket wires 201, 3 basket wires are shown in fig. 2, and correspondingly, the number of the free ends 2021 and the threading pipes 2023 formed by the same are 3.

Referring to fig. 2 and 3, the front end 2032 of the spacing tube 203 is open, and the side wall is provided with an opening, each basket wire includes a movable end 2011 and a spacing end 2012, the spacing end 201 of each basket wire 201 is fixed at the rear end 2031 of the spacing tube 203, the movable end 2011 passes out from the free end of one of the threading pipes 2023, then passes into the spacing tube 203 from the free end of the adjacent threading pipe 2023 and is led out from the side wall opening of the spacing tube 203, and then the movable end 2011 of each basket wire 201 finally converges from the side wall opening of the spacing tube 203 and is fixedly connected with the inhaul cable for pushing or pulling the inhaul cable.

The free end 2011 of the basket wire 201 is fixedly connected with the guy cable, in this embodiment, the basket wire 201 may be glued and fixed by glue, and then pushed out or retracted from the guide tube 202 by the guy cable, for example, the basket wire 201 is made of a wire with a shape memory function, for example, a nickel-titanium alloy wire, after the wire is prefabricated, a threading wire is threaded on the guide tube 202, finally, the limiting end 2012 is fixed at the rear end 2031 of the limiting tube 203, while the free end 2011 of the basket wire 201 may be pushed out or retracted by the guy cable 301, when pushed, the basket wire 201 may be pushed out of the threading tube 2023, so as to recover the prefabricated shape for catching broken stone, after the catching work is completed, the guy cable 301 is operated again for recovery, the basket wire 201 is gradually recovered to the threading tube 2023 by applying a pulling force to the free end 2011, and the space between the basket wires 201 is gradually reduced, so that broken stone is stably caught for retrieval.

According to another aspect of the present embodiment, there is also provided a stone removal basket, including a handle assembly 100 and a stone removal basket assembly 200 connected to the handle assembly, wherein the stone removal basket assembly 200 is the stone removal basket assembly of the foregoing embodiment.

Referring to fig. 4 and 5, the handle assembly 100 includes an outer sleeve 300, a handle seat 102, a pull cable 301 and a push button 101, wherein the pull cable 301 is inserted into the outer sleeve 300, the outer sleeve 300 extends outwards from one end of the handle seat 102, the stone removal basket assembly 200 is disposed at the front end of the outer sleeve 300, and the push button 101 drives the pull cable to move back and forth so as to extend or retract the basket wires 201 from the guide tube 202. In order to facilitate the operation and the holding of the operator, the handle seat 102 is further provided with a holding part 103, the holding part 103 is arranged on the other side of the handle seat 102 opposite to the push key 101, the push key 101 can be operated by the thumb of the operator, and the index finger or the ring finger can be placed on the holding part 103, so that the ergonomic principle is met.

Referring to fig. 3 and 4, the fixed end 2021 of the guide tube 202 is fixed to the outer sleeve 300 by bonding, the movable end 2011 of the basket wire 201 is fixed to the cable 301 by bonding, and the limiting tube 203 is suspended in the outer sleeve 300. Therefore, the pull cable 301 can directly apply the acting force to the basket wire 201 which is thinner than the limiting tube 203, and the thinner basket wire 201 is not limited by the size and the space when encountering a curve, and can be freely and smoothly pushed out of the threading pipeline 2023. In order to increase the strength and the anti-twisting performance, the outer side of the guy cable 301 may be wound with a spring tube or a coated plastic tube.

The limiting end 2012 of the basket wire 201 is fixed in the rear end 2031 of the limiting tube 203 in a crimping manner, the limiting tube 203 accommodating the limiting end 2012 can be easily crimped by tooling equipment, and after the limiting tube 203 is crimped, a groove 20311 is formed in the side wall of the rear end 2031 of the limiting tube 203. Thus, the free ends 2011 of the basket wires 201 may be partially received within the recess 20311. So when the movable end 2011 of the basket wire 201 is fixedly connected with the stay cable 301 and is assembled into the outer sleeve 300, the groove 20311 can give the movable end 2011 and the stay cable 301 a larger movable space, so that the pushing or the pull-back resistance of the stay cable 301 is reduced. Further reducing the risk of the basket wires 201 being stretched out or being snagged.

In another embodiment, referring to fig. 5, the handle assembly 100 further includes a fixing seat 106 fixed at the tail end of the handle seat 101 and a sliding rod 104 slidably disposed on the handle seat 101, the sliding rod 104 is fixedly connected with the pushing key 101, pushing the pushing key 101 can drive the sliding rod 104 to perform synchronous movement, such as forward or backward, the front end of the sliding rod is fixedly connected with the sheath 105, the rear end of the outer sleeve 300 is adhered to the sheath 105, in this embodiment, the fixing seat 106, the guy cable 301 and the movable end 2011 of the basket wire 201 do not move, and it is the pushing key 101, the sliding rod 104, the sheath 105 and the outer sleeve 300 that actually move, because the fixed end 2021 of the guide tube 202 on the stone retrieving basket assembly 200 is adhered to the outer sleeve 300, therefore, when the pushing key 101 moves backward, as the outer sleeve 300 is pulled by the sliding rod 104 and the sheath 105, the fixed end 2021 of the guide tube 202 is also pulled backward, thereby exposing the basket wire 201 from the guide tube 202 to grasp stone. In this embodiment, the outer sleeve 300 is pulled, and one end of the guide tube 202 of the stone removal basket assembly 200 is fixed to the outer sleeve 300, so that the extension of the basket wires 201 only needs to overcome the resistance in the threading tube 2023, and the limiting tube 203 itself does not need to move relative to the outer sleeve 300, but moves along with the outer sleeve 300, so that the curve resistance does not need to be considered.

As can be seen from the above description, according to the stone removal basket assembly and the stone removal basket using the same provided by the utility model, when encountering a narrow or curved road, the stay cable 301 drives the basket wires 201 which are thinner than the limiting tube 203, so that the basket wires 201 are not limited by space and diameter, and the extension failure or retraction failure of the basket wires 201 is caused, thereby effectively improving the success rate of the stone removal operation and relieving the pain of a patient. In another way of driving the basket wires 201 open, the stop tube 203 is moved together with the outer sleeve 300, and no curve resistance is considered. In the driving opening modes of the two basket wires 201, the limiting tube 203 and the outer sleeve 300 are kept relatively static, so long as the outer sleeve 300 can enter a curve, broken stones can be grabbed, and the situation that the extension of the basket wires 201 is blocked is not considered.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. A stone removal basket assembly, characterized in that: the stone-taking basket assembly comprises at least three basket wires, a limiting pipe and a guide pipe, wherein the guide pipe comprises a fixed end and a plurality of free ends which extend outwards in a radiating mode from the fixed end, each free end is communicated with the fixed end and forms threading pipelines which are independent of each other, and the number of the free ends is the same as that of the basket wires;

the front end of the limiting pipe is open, and the side wall of the limiting pipe is provided with an opening;

each basket wire comprises a movable end and a limiting end, the movable ends of the basket wires are fixedly connected with the inhaul cables, the limiting ends of the basket wires are fixed at the rear ends of the limiting pipes, the movable ends penetrate out of the free ends of one threading pipeline and penetrate into the limiting pipes from the free ends of the adjacent threading pipelines and are led out from the side wall openings of the limiting pipes.

2. A stone removal basket assembly according to claim 1 wherein: the basket wires are three, and the guide tube is provided with three free ends.

3. A stone removal basket assembly according to claim 1 wherein: the limiting ends of the basket wires are fixed in the rear end of the limiting pipe in a crimping mode, and grooves are formed in the side walls of the rear end of the limiting pipe.

4. A stone removal basket assembly according to claim 3 wherein: the movable ends of the basket wires are partially accommodated in the grooves.

5. The utility model provides a get stone basket, includes handle subassembly and with the stone basket subassembly of getting that handle subassembly is connected, its characterized in that: the stone removal basket assembly is according to any one of claims 1 to 4.

6. A stone removal basket according to claim 5 wherein: the handle assembly comprises an outer sleeve, a handle seat, a pull rope and a push key, wherein the pull rope is arranged in the outer sleeve in a penetrating mode, the outer sleeve extends outwards from one end of the handle seat, the stone removing basket assembly is arranged at the front end of the outer sleeve, and the push key drives the pull rope to move forwards and backwards so that the basket wires extend out of or retract back from the guide tube.

7. A stone removal basket according to claim 6 wherein: the fixed end of the guide tube is fixedly bonded with the outer sleeve, the movable end of the basket wire is fixedly bonded with the inhaul cable, and the limiting tube is suspended in the outer sleeve.

8. A stone removal basket according to claim 7 wherein: the outside winding of cable sets up spring pipe or cladding plastic pipe.

9. The stone removal basket according to claim 5, wherein the handle assembly comprises an outer sleeve, a handle seat, a pull rope and a push button, the pull rope is arranged in the outer sleeve in a penetrating manner, the outer sleeve extends outwards from one end of the handle seat, the stone removal basket assembly is arranged at the front end of the outer sleeve, a fixing seat is arranged at the tail end of the handle seat, the rear end of the pull rope is fixedly arranged on the fixing seat, a sliding rod is slidably arranged at the front end of the handle seat, the front end of the sliding rod is relatively fixed with the outer sleeve, the push button is relatively fixed with the sliding rod, the push button is operated to move forwards and backwards, and the outer sleeve can be driven to move forwards and backwards, so that the basket wire extends out of or retracts from the guide tube.

10. The stone removal basket according to claim 9, wherein a sheath tube is provided at a front end of the sliding rod, and a rear end of the outer sleeve tube is fixedly connected with the sheath tube.

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