CN116115297A

CN116115297A - Stone-taking basket

Info

Publication number: CN116115297A
Application number: CN202211246186.XA
Authority: CN
Inventors: 文德意
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-05-16

Abstract

The invention relates to a novel stone-taking basket, which comprises a basket, an inner core, a sleeve and a handle. The basket of the stone-taking basket comprises a head part, a middle part and a tail part, the basket is formed by weaving filaments of a shape memory material, each filament is folded in half to form the basket, the middle bending part of the filament forms the head part of the basket, and blind ends of two ends of each filament form a basket tail part connecting handle. The inner core of the stone-taking basket comprises a head part, a middle part and a tail part, wherein the head part of the inner core is provided with a track for restraining basket filaments, the track of the inner core is a variable spiral track, basket filaments pass through the track, the distribution of the basket filaments can be controlled, and the tail part of the inner core is connected with a handle. The sleeve of the stone-taking basket wraps the basket and the inner core, and the tail part of the sleeve is connected with the handle. The handle of the stone-taking basket is similar to a phi shape, and comprises the handle and 3 control elements, and the head and the inner core of the basket are telescopic through the 3 control elements, so that stones can be rapidly, accurately and conveniently captured, and meanwhile, the stones are not easy to slide down.

Description

Stone-taking basket

Technical Field

The invention mainly relates to the field of medical instruments, in particular to a novel stone-taking basket.

Background

Urinary system calculus is a very common clinical disease, the traditional treatment mode mainly comprises surgery, and along with the progress of technology, various minimally invasive treatment modes such as ureteroscope laser lithotripsy and ureteroscope laser lithotripsy are continuously emerging in recent years. The clinical stone-taking basket is widely applied to the minimally invasive operation treatment of the urinary system stones, can directly take stones and can assist laser stone breaking. The main purpose of the stone taking basket is to cover the stones and prevent the ureteral stones from moving upwards, so that the clinical operation is more convenient; simultaneously fix the calculus position, laser location more easily avoids causing ureter wall damage. However, the traditional stone-taking basket is of a three-wire or four-wire structure, and two problems may be encountered in the stone-taking process; firstly, stones are not easy to capture, particularly stones with larger diameters are not easy to slide in from the gaps of three wires or four wires; secondly, the stone is easy to slide down after being captured, and particularly the stone is more difficult to capture after being smashed and reduced. Therefore, how to ensure that stones slide into the basket smoothly and are not easy to slide after being broken is a problem to be solved urgently.

Disclosure of Invention

In order to solve the problems, the invention provides the novel stone-taking basket which can quickly, accurately and conveniently capture stones and simultaneously ensure that the stones are not easy to slide off.

The stone removing basket comprises a basket body, an inner core, a sleeve and a handle.

The basket of the stone removing basket comprises a head part, a middle part and a tail part. The basket is formed by weaving a plurality of filaments, and the filaments are made of shape memory materials and can stretch and rebound; the total number of the filaments is an even number of 4 to 64; each filament is folded in half to form a basket, the middle folded part of the filament is positioned at the head of the basket to form the head of the basket, and the blind ends of the two ends of the filament are positioned at the tail of the basket to form a basket tail connecting handle; the number of the filaments is 1, the filaments penetrate through the inner core of the basket and the sleeve, under the constraint of the head track of the inner core and the sleeve, the arch structures of the filament bending parts are crossed to form claw-shaped basket heads, and the number of the claws is equal to that of the filaments; each 1 filament penetrates out from one side rail of the head of the inner core and penetrates into the opposite side rail, so that the bending part forms an arch structure; the arch structures of each adjacent filaments are mutually crossed and woven into a net shape at the top end of the head part of the claw-shaped basket; the arch structures of the adjacent filaments can be intersected with each other for 1 time or intersected with each other for multiple times, for example, each of 2 groups of 4 filaments is intersected with each other for 1 time to be woven into an 'An' -shaped net shape, and if the filaments are intersected with each other for multiple times, the filaments are woven into a dense net shape; the claw-shaped head of the basket is arranged in the retractable sleeve, stretches out of the sleeve and rebounds, and maintains the original arched net structure of the head of the basket; the middle part of the basket is a filament, and the filament passes through the sleeve and the inner core; the tail part of the basket is provided with blind ends at two ends of each filament, and each blind end is connected with a control element on the handle so as to control the head part of the basket to stretch out and draw back.

The inner core of the stone removing basket comprises a head part, a middle part and a tail part. The inner core is made of flexible and bendable materials, such as plastics, PEEK materials, synthetic materials, weaving materials, metals, alloys and the like, is positioned in the stone-taking basket sleeve and can stretch along with the basket; the head of the inner core is provided with a track for restraining the basket filaments, the basket filaments walk in the track, and the track can enable the basket filaments to be arranged according to track distribution; the inner core track is a variable spiral track and comprises an upper section track and a lower section track, the number of the tracks is equal to the number of the 'claws' of the head part of the basket, and the 'claws' of the head part of the basket are distributed and arranged around under the constraint of the upper section track; the upper section track is positioned at the top end of the variable spiral track and distributed at the periphery of the inner core, track holes can be uniformly distributed around the track holes, and the track holes can also be uniformly distributed around the track holes, so that the 'claws' of the head of the basket are required to be distributed around the track holes; the lower section of the track is positioned at the lower section of the variable spiral track, the tracks are distributed outside the deflection side of the inner core, the number of the tracks is the same as that of the upper section of the track, and each track is communicated with the upper section of the track in a connecting way, so that filaments of the claw at the head part of the basket are distributed at one side; the middle part of the inner core is positioned in the sleeve, the middle part of the inner core can be free of rails, the diameter of the inner core is slightly smaller than that of the sleeve, and the mesh basket filaments are distributed around the inner core; the middle part of the inner core can be provided with one rail or a plurality of rails, the rails can be consistent with the rails of the head part of the inner core or inconsistent with the rails, and basket filaments pass through the rails; the tail of the inner core is connected with a control element on the handle, so that the inner core can be controlled to stretch out and draw back.

The sleeve of the stone taking basket wraps the basket and the inner core, and the tail part of the sleeve is connected with the handle; the sleeve is a flexible and bendable material such as plastic, PEEK material, synthetic material, braided material, etc.

The handle of the stone-taking basket is similar to a phi shape and is attached to a hand; the handle comprises a handle and 3 control elements, wherein the 3 control elements are respectively positioned at the middle vertical part and the two side arc parts of the handle similar to the phi, the middle vertical part of the handle similar to the phi is provided with a 1 vertical track, the middle control element is accommodated in the track, the two side arc parts of the handle similar to the phi are respectively provided with a 1 arc track, and the two side control elements are accommodated in the track; the middle vertical track of the phi-shaped handle is a sliding track, the track is positioned in the middle vertical part, the surface part of the track is a vertical smooth track, and the deep part of the track is a vertical gear track; the middle control element of the handle is indirectly connected in the sliding track of the middle vertical part of the phi-shaped handle; the middle control element is of a cylinder structure perpendicular to the middle vertical track and comprises a bottom part, a middle part and a top part; the bottom of the column structure is a column or square body, and is directly connected with the tail parts of the net basket filaments and the tail parts of the inner cores, so that the net basket and the inner cores can be simultaneously telescopic; the middle part of the cylinder structure is a cylinder, a rolling gear is sleeved on the cylinder, the rolling gear is meshed with a middle vertical gear track, and the rolling gear can slide up and down along with the track; the top of the column structure is a square body, and the square body can be pressed down to be embedded into a gear track fixed gear so as to prevent sliding; the side surfaces of the arc-shaped parts on two sides of the phi-shaped handle are respectively provided with 1 arc-shaped track, and the track is internally and indirectly connected with control elements on two sides; the control elements on the two sides are all column structures perpendicular to the arc-shaped track, one side column structure is connected with the upper section of the tail part of the mesh basket filament, and the other side column structure is connected with the upper section of the tail part of the inner core of the mesh basket; the elastic element 1 is arranged in the middle vertical track of the phi-shaped handle, so that the head of the basket can be kept in a telescopic state, and the excessive stretching of the basket can be prevented; the elastic element arranged in the middle vertical track can be arranged at the upper part of the middle control element, can also be arranged at the lower part of the middle control element, or is respectively arranged at the upper part and the lower part of the middle control element with 1 elastic element; the arc-shaped rails on the two sides of the phi-shaped handle are respectively provided with 1 elastic element, so that the contraction length of the basket and the inner core can be regulated and controlled in an auxiliary manner, the inner core returns to a proper position, and the claw-shaped distribution is controlled.

Drawings

FIG. 1 is a schematic view of a stone removal basket of the present invention;

FIG. 2 is a schematic illustration of the stone removal basket of the present invention;

FIG. 3 is a schematic view showing the internal construction of the stone removing basket of the present invention;

FIG. 4a and FIG. 4b are cut-away views of the stone removal basket of the present invention;

FIG. 5 is a top view of the head of the stone removal basket of the present invention;

Detailed Description

The invention will be further described with reference to the accompanying drawings. These examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.

A novel stone-taking basket figure 1 comprises a basket, an inner core, a sleeve and a handle.

The basket of the stone removal basket in fig. 3 comprises a head part 1, a middle part 5 and a tail part 6. The basket is formed by weaving a plurality of filaments, and the filaments are made of shape memory materials, such as nickel-titanium alloy and the like, and can stretch and rebound; the total number of the filaments is an even number of 4 to 64; each thin wire is folded in half to form a basket, the middle bent part of the thin wire is positioned at the head of the basket to form a basket head 1, the blind ends of the two ends of the thin wire are positioned at the tail 6 of the basket to form a basket tail connecting handle; the number of the filaments is 1 group 2, the filaments penetrate through the inner core of the basket and the sleeve, under the constraint of the head track of the inner core and the sleeve, the arch structures of the filament bending parts are crossed to form a claw-shaped 3 basket head, and the number of the claws is equal to that of the filaments; each 1 filament penetrates out of one side rail of the head of the inner core and penetrates into the opposite side rail, so that the bending part forms an arch structure 4; the arch structures of each adjacent filaments are mutually crossed and woven into a net shape at the top end of the head part of the claw-shaped basket; the arch structures of the adjacent filaments can be intersected with each other for 1 time or intersected with each other for multiple times, for example, each of 2 groups of 4 filaments is intersected with each other for 1 time to be woven into an' -shaped net shape as shown in figure 5, and if the filaments are intersected with each other for multiple times to be woven into a dense net shape; the claw-shaped head of the basket is arranged in the retractable sleeve, stretches out of the sleeve and rebounds, and maintains the original arched net structure of the head of the basket; the middle part 5 of the basket is a filament, and the filament passes through the sleeve and the inner core; the tail part 6 of the basket is a blind end at two ends of each filament, and each blind end is connected with a control element on the handle so as to control the head part of the basket to stretch out and draw back.

The core of the stone removal basket fig. 3 comprises a head portion 7, a middle portion 11 and a tail portion 12. The inner core is made of flexible and bendable materials, such as plastics, PEEK materials, synthetic materials, weaving materials, metals, alloys and the like, is positioned in the stone-taking basket sleeve and can stretch along with the basket; the head of the inner core is provided with a track for restraining the basket filaments, the basket filaments walk in the track, and the track can enable the basket filaments to be arranged according to track distribution; the inner core track is a variable spiral track and comprises an upper section track 8 and a lower section track 10, the number of the tracks is equal to the number of the 'claws' of the head part of the basket, and the 'claws' of the head part of the basket are distributed and arranged around the constraint of the upper section track; the upper section track 8 is positioned at the top end of the variable spiral track and distributed on the periphery of the inner core as shown in fig. 4a, track holes can be uniformly distributed around the track holes, and the track holes can also be uniformly distributed around the track holes, so that the 'claws' of the head of the basket are required to be distributed around the track holes in a dispersed manner as shown in fig. 1; the lower section of the track 10 is positioned at the lower section of the variable spiral track, the tracks are distributed outside the deflection side of the inner core as shown in fig. 4b, the number of the tracks is the same as that of the upper section of track, and each track is communicated with the upper section of track in a connecting way 9, so that the filaments of the 'claw' at the head of the basket are deflected to one side of the distribution map 2; the middle part 11 of the inner core is positioned in the sleeve, the middle part of the inner core can be free of rails, the diameter of the inner core is slightly smaller than that of the sleeve, and the net basket filaments are distributed around the inner core; the middle part of the inner core can be provided with one rail or a plurality of rails, the rails can be consistent with the rails of the head part of the inner core or inconsistent with the rails, and basket filaments pass through the rails; the tail 12 of the inner core is connected with a control element on the handle, and the inner core can be controlled to stretch and retract.

The sleeve 13 of the stone taking basket wraps the basket and the inner core, and the tail part of the sleeve is connected with the handle; the sleeve is a flexible and bendable material such as plastic, PEEK material, synthetic material, braided material, metal, alloy, etc.

The handle of the stone-taking basket is in a similar phi shape 14 and is attached to a hand; the similar-phi-shaped handle comprises a handle and 3 control elements, wherein the 3 control elements are respectively positioned at the middle vertical part and the two side arc parts of the similar-phi-shaped handle, the middle vertical part of the similar-phi-shaped handle is provided with a 1 vertical track 15, a middle control element 16 is accommodated in the track, the two side arc parts of the similar-phi-shaped handle are respectively provided with a 1

arc track

17a and 17b, and two

side control elements

18a and 18b are accommodated in the tracks; the middle vertical track of the phi-shaped handle is a sliding track, the track is positioned in the middle vertical part, the surface part of the track is a vertical smooth track, and the deep part of the track is a vertical gear track 19; the middle control element of the handle is indirectly connected in the sliding track of the middle vertical part of the phi-shaped handle; the middle control element is of a column structure perpendicular to the middle vertical rail and comprises a bottom 20, a middle 21 and a top 22; the bottom 20 of the column structure is a column or square body, and is directly connected with the net basket filament tail 6 and the inner core tail 12, so that the net basket and the inner core can be simultaneously telescopic; the middle part 21 of the cylinder structure is a cylinder, a rolling gear 24 is sleeved on the cylinder, the rolling gear 24 is meshed with the middle vertical gear track 19, and the rolling gear can slide up and down along with the track; the top 22 of the column structure is a square body, and the square body can be embedded into a gear track fixed gear to prevent sliding; the side surfaces of the arc parts at two sides of the phi-shaped handle are respectively provided with 1 arc-

shaped rails

17a and 17b, and the two

side control elements

18a and 18b are indirectly connected in the rails; the control elements on the two sides are all column structures perpendicular to the arc-shaped track, one side column structure is connected with the upper section of the tail part of the mesh basket filament, and the other side column structure is connected with the upper section of the tail part of the inner core of the mesh basket; the elastic element 23 is arranged in the middle vertical track of the phi-shaped handle, can be arranged at the upper part of the middle control element, can be arranged at the lower part of the middle control element, or is respectively arranged at the upper part and the lower part of the middle control element, so that the head of the basket is kept in a telescopic state, and the excessive stretching of the basket can be prevented; the arc-shaped tracks on the two sides of the phi-shaped handle are respectively provided with 1 elastic element, so that the contraction length of the basket and the inner core can be regulated and controlled in an auxiliary manner, the claw-shaped distribution is controlled, the inner core returns to a proper position, and the periphery of the basket filaments is distributed.

The using method comprises the following steps:

in the operation process, the basket head of the stone taking basket is contracted into the sleeve, the basket penetrates through the ureteroscope pore canal, the basket penetrates through a gap between the ureter and the stone under the guidance of the lens, the basket head reaches the upper part of the stone, the middle control element of the handle is used for pushing out the basket head and the inner core, the thin wire of the pushed basket head deviates to one side, so that the stone easily slides into the net pit of the basket, the inner core is pulled back through the inner core control element at one side of the handle, the basket head completely covers the stone, and the basket head is retracted through the basket control element at the other side of the handle, so that the stone is tightly covered; through the operation, the position of the stone is relatively fixed, and laser is penetrated through a ureteroscope duct to carry out laser stone breaking; the broken stones are accumulated on the head of the basket, the stones are taken out along with the ureteroscope and the stone-taking basket which are withdrawn, and the ureteral stent is placed, so that the operation is completed. For stones with smaller diameters, the stones can be directly taken out through the basket. The stone-taking basket is not only suitable for ureteral calculus, but also can be applied to minimally invasive operations of other calculus such as biliary tract calculus.

Claims

1. The utility model provides a novel get stone basket, includes basket, inner core, sleeve pipe and handle, characterized by: the basket of the stone removing basket comprises a head part, a middle part and a tail part. The basket is formed by weaving a plurality of filaments, and the filaments are made of shape memory materials and can stretch and rebound; the total number of the filaments is an even number of 4 to 64; each filament is folded in half to form a basket, the middle folded part of the filament is positioned at the head of the basket to form the head of the basket, and the blind ends of the two ends of the filament are positioned at the tail of the basket to form a basket tail connecting handle; the number of the filaments is 1, the filaments penetrate through the inner core of the basket and the sleeve, under the constraint of the head track of the inner core and the sleeve, the arch structures of the filament bending parts are crossed to form claw-shaped basket heads, and the number of the claws is equal to that of the filaments; each 1 filament penetrates out from one side rail of the head of the inner core and penetrates into the opposite side rail, so that the bending part forms an arch structure; the arch structures of each adjacent filaments are mutually crossed and woven into a net shape at the top end of the head part of the claw-shaped basket; the arch structures of the adjacent filaments can be intersected with each other for 1 time, for example, each of 2 groups of 4 filaments is intersected with each other for 1 time and is woven into an 'An' -shaped net; the arch structures of the adjacent filaments can be crossed with each other for a plurality of times, for example, a plurality of groups of filaments are crossed with each other for a plurality of times and are woven into a dense net shape; the claw-shaped head of the basket is arranged in the retractable sleeve, stretches out of the sleeve and rebounds, and maintains the original arched net structure of the head of the basket; the middle part of the basket is a filament, and the filament passes through the sleeve and the inner core; the tail part of the basket is provided with blind ends at two ends of each filament, and each blind end is connected with a control element on the handle so as to control the head part of the basket to stretch out and draw back.

2. The novel stone removal basket according to claim 1, characterized in that: the inner core of the stone removing basket comprises a head part, a middle part and a tail part. The inner core is made of flexible and bendable materials, is positioned in the stone-taking basket sleeve and can stretch and retract along with the basket; the head of the inner core is provided with a track for restraining the basket filaments, the basket filaments walk in the track, and the track can enable the basket filaments to be arranged according to track distribution; the inner core track is a variable spiral track and comprises an upper section track and a lower section track, and the number of the tracks is equal to the number of the 'claws' of the head of the basket; the upper section track is positioned at the top end of the variable spiral track, track holes are distributed at the periphery of the inner core, the track holes can be uniformly distributed and arranged around the inner core, and the track holes can also be uniformly distributed and arranged around the inner core; the lower section of the track is positioned at the lower section of the variable spiral track, track holes are distributed outside the deflection side of the inner core, the number of the tracks is the same as that of the upper section of the track, and each track is communicated with the upper section of the track, so that filaments of the 'claw' at the head of the basket are distributed at one side; the middle part of the inner core is positioned in the sleeve, the middle part of the inner core can be free of rails, the diameter of the inner core is smaller than that of the sleeve, and the mesh basket filaments are distributed around the inner core; the middle part of the inner core can be provided with a track, and basket filaments pass through the track; the middle part of the inner core can be provided with a plurality of tracks which are consistent with the tracks of the head part, and basket filaments pass through the tracks; the middle part of the inner core can be provided with a plurality of tracks which are inconsistent with the tracks of the head part, and basket filaments pass through the tracks; the tail of the inner core is connected with a control element on the handle, so that the inner core can be controlled to stretch out and draw back.

3. The novel stone removal basket according to claim 1, characterized in that: the sleeve of the stone-taking basket is made of flexible and bendable materials, wraps the basket and the inner core, and the tail part of the sleeve is connected with the handle.

4. The novel stone removal basket according to claim 1, characterized in that: the handle of the stone-taking basket is similar to a phi shape and is attached to a hand. The handle comprises a handle and 3 control elements, wherein the 3 control elements are respectively positioned at the middle vertical part and the two side arc parts of the handle similar to the phi, the middle vertical part of the handle similar to the phi is provided with a 1 vertical track, the middle control element is accommodated in the track, the two side arc parts of the handle similar to the phi are respectively provided with a 1 arc track, and the two side control elements are accommodated in the track; the middle vertical track of the phi-shaped handle is a sliding track, the track is positioned in the middle vertical part, the surface part of the track is a vertical smooth track, and the deep part of the track is a vertical gear track; the middle control element of the handle is indirectly connected in the sliding track of the middle vertical part of the phi-shaped handle; the middle control element is of a cylinder structure perpendicular to the middle vertical track and comprises a bottom part, a middle part and a top part; the bottom of the column structure is a column or square body, and is directly connected with the tail parts of the net basket filaments and the tail parts of the inner cores, so that the net basket and the inner cores can be simultaneously telescopic; the middle part of the cylinder structure is a cylinder, a rolling gear is sleeved on the cylinder, the rolling gear is meshed with a middle vertical gear track, and the rolling gear can slide up and down along with the track; the top of the column structure is a square body, and the square body can be pressed down to be embedded into a gear track fixed gear so as to prevent sliding; the side surfaces of the arc-shaped parts on two sides of the phi-shaped handle are respectively provided with 1 arc-shaped track, and the track is internally and indirectly connected with control elements on two sides; the control elements on the two sides are all column structures perpendicular to the arc-shaped track, one side column structure is connected with the upper section of the tail part of the mesh basket filament, and the other side column structure is connected with the upper section of the tail part of the inner core of the mesh basket; the elastic element 1 is arranged in the middle vertical track of the phi-shaped handle, so that the head of the basket can be kept in a telescopic state, and the excessive stretching of the basket can be prevented; the elastic element arranged in the middle vertical track can be arranged at the upper part of the middle control element; the elastic element arranged in the middle vertical track can be arranged at the lower part of the middle control element; the arc-shaped rails on the two sides of the phi-shaped handle are respectively provided with 1 elastic element, so that the contraction length of the basket and the inner core can be regulated and controlled in an auxiliary manner, the inner core returns to a proper position, and the claw-shaped distribution is controlled.