CN215688244U - Front end cap assembly and choledochoscope lower calculus taking basket - Google Patents

Abstract

The utility model provides a front end cap assembly and a choledochoscope lower calculus removing basket, and relates to the technical field of medical devices, wherein the front end cap assembly comprises an end cap body and a limiting connecting piece sleeved on the end cap body; the part of the end cap body extending into the limiting connecting piece is provided with a plurality of through holes for the basket wire to penetrate through, and each through hole is arranged on the side surface of the end cap body; a limiting cavity for limiting the position of the basket wire is formed between the limiting connecting piece and the end cap body. The front end cap assembly provided by the utility model can enlarge the opening area, reduce the opening difficulty and improve the product percent of pass, and meanwhile, the outer diameter of the end cap body can be reduced to 1mm or smaller than 1mm during processing, so that even if the number of the basket wires is increased, the outer diameter of the end cap body does not need to be greatly increased or even increased, and the popularization of a choledochoscope lithotomy technique is facilitated.

Description

Front end cap assembly and choledochoscope lower calculus taking basket

Technical Field

The utility model relates to the technical field of medical devices, in particular to a front end cap assembly and a choledochoscope lower calculus-taking basket.

Background

The choledocholithiasis through duodenoscope is a main means for treating the choledocholithiasis, and the choledocholithiasis needs to contrast bile ducts, so that the choledocholithiasis cannot be performed in a direct viewing state. The calculus develops into a plane under the radiation, and the operator cannot accurately judge the size of the calculus. The traditional stone-taking basket cannot enter the choledochoscope to take stones in a direct-view state due to the large size. Along with the development and popularization of the choledochoscope, the lithotomy instrument under the choledochoscope is gradually popularized, so that doctors do not need to assist in lithotomy under the help of X-rays, and doctors, nurses and patients cannot be injured by the radiation of the X-rays.

As shown in fig. 1 and 2, fig. 1 is a schematic three-dimensional structure diagram of a front end cap of a prior art stone basket adopting a four-hole scheme; fig. 2 is a longitudinal sectional view of a prior art stone basket with a four hole front end cap. Four break-throughholes 1 have been seted up on the terminal surface of front end cap among the prior art, can be used to wear basket silk to compile, because the basket will be through the endoscope pincers way that the internal diameter is littleer, so front end cap external diameter need design very little, and when basket strand silk number is more, 1 numbers of break-through holes that correspond need increase, and this just need open more break-throughholes 1 at the very little front end cap terminal surface of area, is showing and has improved processing cost, reduces the qualification rate.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a front end cap assembly and a choledochoscope lower calculus-taking basket, which can enlarge the opening area, reduce the opening difficulty and improve the product percent of pass, and the outer diameter of an end cap body can be reduced to 1mm or less than 1mm during processing.

In order to achieve the purpose, the utility model provides the following technical scheme:

in a first aspect, the utility model provides a front end cap assembly, which comprises an end cap body and a limit connecting piece sleeved on the end cap body;

the part of the end cap body extending into the limiting connecting piece is provided with a plurality of through holes for the basket wire to penetrate through, and each through hole is formed in the side face of the end cap body;

a limiting cavity used for limiting the position of the basket wire is formed between the limiting connecting piece and the end cap body.

Further, each of the through holes is distributed at different heights of the end cap body.

Further, the through holes comprise at least one first through hole and at least one second through hole, and an included angle is formed between the axis of the first through hole and the axis of the second through hole; and the first through holes and the second through holes are distributed at intervals along the height direction of the end cap body.

Further, the first through holes are arranged in two, and the second through holes are arranged in one.

Further, the axes of any two through holes form an included angle.

Further, along the height direction of the end cap body, the included angle between the axes of the two adjacent through holes is the same.

Further, the part of the end cap body extending into the limit connecting piece comprises a polygonal column structure, the polygonal column structure is provided with an even number of side faces, and each through hole penetrates through a pair of side faces of the polygonal column, wherein the side faces are oppositely arranged.

Furthermore, the part of the end cap body extending into the limiting connecting piece and/or the inner wall of the limiting connecting piece are/is provided with a limiting groove, and the limiting groove is used for accommodating the basket wire.

In a second aspect, the utility model further provides a choledochoscope undersize calculus-taking basket, which comprises a basket wire, a storage assembly, a handle, a guy cable mechanism and the front end cap assembly, wherein the basket wire penetrates through the end cap body, the storage assembly is connected with the handle, and the guy cable mechanism penetrates through the handle and the storage assembly and is connected with one end, away from the end cap body, of the basket wire.

Further, the storage assembly comprises a capacity-increasing pipe and an elastic pipe, one end of the elastic pipe is connected with the handle, the other end of the elastic pipe is connected with the capacity-increasing pipe, and the inner diameter of the capacity-increasing pipe is larger than that of the elastic pipe.

The front end cap assembly and the choledochoscope lower calculus removing basket provided by the utility model have the following beneficial effects:

compared with the prior art, the front end cap assembly provided by the first aspect of the utility model gets rid of the traditional mode of arranging the through holes on the end face of the front end cap to weave the basket wire, namely arranging the plurality of through holes on the side face of the end cap body, limiting the position of the basket wire through the limiting cavity between the limiting connecting piece and the end cap body, enlarging the opening area, reducing the opening difficulty and improving the product qualification rate, and meanwhile, the outer diameter of the end cap body can be reduced to 1mm or smaller than 1mm during processing, even if the number of the basket wires is increased, the outer diameter of the end cap body does not need to be greatly increased or even increased, and the popularization of the lithotomy technique is facilitated.

Compared with the prior art, the choledochoscope lithotomy basket provided by the second aspect of the utility model can smoothly perform lithotomy in a direct-view state through the choledochoscope clamping channel, does not need to inject contrast medium, reduces operation time, and is safe and reliable in structure and lower in cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic three-dimensional structure of a front end cap of a prior art stone basket using a four-hole solution;

FIG. 2 is a longitudinal cross-sectional view of a prior art stone basket front end cap utilizing a four hole arrangement;

fig. 3 is an exploded view of a front end cap assembly according to an embodiment of the first aspect of the present invention;

fig. 4 is a longitudinal cross-sectional view of a front end cap assembly provided in accordance with an embodiment of the first aspect of the present invention;

FIG. 5 is an exploded view of a front end cap assembly in accordance with one embodiment of the present invention in engagement with a basketball goal;

FIG. 6 is a schematic structural view of an end cap body engaged with a basket wire according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an end cap body according to a second embodiment of the present invention;

fig. 8 is an exploded view of another front end cap assembly provided in accordance with an embodiment of the first aspect of the present invention;

fig. 9 is a schematic three-dimensional structure diagram of a choledochoscope lithotomy basket according to an embodiment of the second aspect of the present invention.

Icon: 1-a through hole; 2-an end cap body; 21-a plurality of through holes; 211 — a first via; 212-a second via; 213-third via; 214-fourth via; 215-fifth via; 22-a first limit groove; 3-a limit connector; 31-a second limiting groove; 4-basket silk; 5-a limit cavity; 6-a receiving assembly; 61-compatibilized tube; 62-an elastic tube; 7-a handle; 71-liquid injection port; 8-a cable mechanism; 81-a cable assembly; 82-Cable handle.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that 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, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

The embodiment of the first aspect of the utility model provides a front end cap assembly, as shown in fig. 3 and 4, comprising anend cap body 2 and alimit connecting piece 3 sleeved on theend cap body 2; the part of theend cap body 2 extending into the limiting connectingpiece 3 is provided with a plurality of throughholes 21 for thebasket wires 4 to penetrate through, and each through hole is arranged on the side surface of theend cap body 2; alimiting cavity 5 for limiting the position of thebasket wire 4 is formed between the limiting connectingpiece 3 and theend cap body 2.

When the assembly is carried out, a plurality of through holes can be penetrated and arranged by the plurality ofbasket wires 4 in a one-to-one correspondence mode to be woven, and then the limiting connectingpiece 3 is connected with theend cap body 2 to limit the position of eachbasket wire 4 relative to the end cap body. Therefore, during the assembly process, onebasket wire 4 only needs to pass through one through hole, and compared with the prior art that onebasket wire 4 needs to pass through two throughholes 1, the assembly process is simpler. In addition, the through hole in the above-mentioned front end cap subassembly is seted up in the side ofend cap body 2, has enlarged the trompil area, reduces the trompil degree of difficulty, effectively improves the product percent of pass, and the external diameter size of adding the end cap body simultaneously can dwindle to 1mm or its external diameter size is less than 1mm, and front end cap subassembly can get into cholangioscope pincers way smoothly, gets the stone under the direct-view state through the cholangioscope.

Wherein, as shown in fig. 3 and 4, thelimit connector 3 is of a cylindrical structure, and thelimit connector 3 and theend cap body 2 can be connected by adopting connection modes such as threaded connection, clamping connection, welding and the like.

Of course, thelimit connector 3 is not limited to the above structure, and any structure capable of forming thelimit cavity 5 for limiting the position of thebasket wire 4 with theend cap body 2 may be used.

The distribution of the plurality of throughholes 21 is specifically described below:

in some embodiments, as shown in fig. 3-4, the through holes are distributed at different heights of theend cap body 2.

The above-mentioned setting can avoid appearing the condition that the through-hole concentrates the distribution on a certain cross section ofend cap body 2, is convenient for trompil to endcap body 2 in the course of working, and can effectively avoid having the interference between eachbasket silk 4.

On the basis of the above embodiment, as shown in fig. 4, the axial direction of each through hole is parallel to the cross section of theend cap body 2, and independent arrangement of each through hole is realized.

According to the arrangement type of the plurality of throughholes 21, the following two embodiments can be specifically classified:

the first embodiment is as follows:

in the first embodiment, as shown in fig. 5 and fig. 6, the plurality of throughholes 21 include at least one first throughhole 211 and at least one second throughhole 212, and an axis of the first throughhole 211 forms an included angle with an axis of the second throughhole 212; and the first throughholes 211 and the second throughholes 212 are spaced apart along the height direction of theend cap body 2.

As will be described in detail with reference to fig. 5, the first throughholes 211 are configured as one through hole for passing through thefirst basket wire 4; the second throughholes 212 are configured as one, and the second throughholes 212 are located below the first throughholes 211, and the second throughholes 212 are used for penetrating thesecond basket wire 4.

As will be described in detail with reference to fig. 6, the first throughholes 211 are two, two first throughholes 211 are distributed vertically, and twobasket wires 4 are correspondingly penetrated through the two first throughholes 211 one by one; the number of the second throughholes 212 is one, and along the height direction of theend cap body 2, the second throughholes 212 are located between the two first throughholes 211, and the second throughholes 212 are used for passing through thethird basket wire 4.

Specifically, in fig. 5 and 6, the axes of the first throughhole 211 and the second throughhole 212 are both parallel to the cross section of theend cap body 2, and the angle between the axis of the first throughhole 211 and the axis of the second throughhole 212 is 90 °.

In this embodiment one, along with the increase of the number of the first throughholes 211 and the second throughholes 212, the height of theend cap body 2 can be continuously increased by a processing person, so as to provide a larger opening area, without enlarging the outer diameter of theend cap body 2, and the outer diameter of theend cap body 2 can allow onebasket wire 4 to cross, andother basket wires 4 sequentially cross the through holes below the basket wires, and the outer diameter of theend cap body 2 can be reduced to 1mm or smaller than 1 mm.

Example two:

in the second embodiment, as shown in fig. 7, the axes of any two through holes have an included angle.

The axis of two arbitrary through-holes is avoided to above-mentioned structure simultaneously on the longitudinal section ofend cap body 2, and behind eachbasket silk 4 establishment formation basket, along the circumference of basket, eachbasket silk 4 distributes more evenly, and eachbasket silk 4 does not have the phenomenon that the extension path overlaps mutually.

In this embodiment two, along the direction of height ofend cap body 2, the contained angle between the axis of two adjacent through-holes is the same for after the assembly is accomplished, eachbasket silk 4 along the circumference evenly distributed of basket.

The number of the through holes can be two, three, four, five and the like, and the included angles between the axes of two adjacent through holes are respectively 90 degrees, 60 degrees, 45 degrees, 36 degrees and the like.

As shown in fig. 7, the number of the through holes is three, which are respectively a third throughhole 213, a fourth throughhole 214 and a fifth throughhole 215, the third throughhole 213, the fourth throughhole 214 and the fifth throughhole 215 are spirally arranged, an included angle between axes of two adjacent through holes is 60 °, and each through hole correspondingly penetrates through onebasket wire 4.

The structure of theend cap body 2 is explained in detail below:

in some embodiments, to facilitate alignment of the through holes, the portion of theend cap body 2 extending into thespacing link 3 comprises a polygonal prism having an even number of sides, each through hole extending through an opposing pair of sides of the polygonal prism.

As shown in fig. 6, the part of theend cap body 2 extending into thespacing connector 3 comprises a quadrangular prism structure, each first throughhole 211 penetrates through one pair of opposite side surfaces of the quadrangular prism structure, and each second throughhole 212 penetrates through the other pair of opposite side surfaces of the quadrangular prism structure; as shown in fig. 7, the portion of theend cap body 2 extending into the position-limitingconnection member 3 includes a hexagonal prism structure, a third throughhole 213 penetrates through a pair of opposite side surfaces of the hexagonal prism structure, a fourth throughhole 214 penetrates through another pair of opposite side surfaces of the hexagonal prism structure, and a fifth throughhole 215 penetrates through the last pair of opposite side surfaces of the hexagonal prism structure.

In some embodiments, theend cap body 2 further comprises a head portion and a connecting portion, two ends of the connecting portion are respectively connected with the head portion and the polygonal column structure, and the limiting connectingmember 3 is sleeved outside the connecting portion and the polygonal column structure.

The shape of the head can be various, for example, the shape of the head can be cone, semicircle, etc.

In at least one embodiment, as shown in FIG. 6, the head is tapered in shape and the ends are rounded.

A preferred embodiment of the front end cap assembly is described in detail below:

in some embodiments, the part of theend cap body 2 extending into thespacing connector 3 and/or the inner wall of thespacing connector 3 is provided with a spacing groove, and the spacing groove is used for accommodating thebasket wire 4, so as to ensure the stability of thebasket wire 4 relative to the position of the end cap assembly.

Specifically, only the portion of theend cap body 2 extending into thespacing connector 3 may have afirst spacing groove 22, and the cross section of thefirst spacing groove 22 may be semicircular, rectangular, or the like.

Only the inner wall of thelimit connector 3 may have asecond limit groove 31, and the cross section of thesecond limit groove 31 may be semicircular, rectangular, etc.

Of course, in at least one embodiment, as shown in fig. 8, the portion of theend cap body 2 extending into the position-limiting connectingmember 3 has a first position-limitinggroove 22, and the inner wall of the position-limiting connectingmember 3 has a second position-limitinggroove 31, and the second position-limitinggroove 31 is engaged with the first position-limitinggroove 22 to limit thebasket wire 4.

As shown in fig. 8, the first limitinggroove 22 extends from the end of the through hole to the bottom end of theend cap body 2, and the second limitinggroove 31 is opposite to the first limitinggroove 22. Each through hole corresponds to two first limitinggrooves 22 and two second limitinggrooves 31, namely, themesh basket wire 4 extending out of one end of the through hole is limited by the pair of first limitinggrooves 22 and the pair of second limitinggrooves 31 which are buckled with each other.

An embodiment of the second aspect of the present invention provides a choledochoscope lithotomy basket, as shown in fig. 9, the choledochoscope lithotomy basket provided in the embodiment of the second aspect of the present invention includes abasket wire 4, a receivingassembly 6, ahandle 7, aguy cable mechanism 8 and the front end cap assembly, thebasket wire 4 is inserted into theend cap body 2, the receivingassembly 6 is connected with thehandle 7, and theguy cable mechanism 8 is inserted into thehandle 7 and the receivingassembly 6 is connected with one end of thebasket wire 4 away from theend cap body 2.

In the process of removing stones from the biliary tract, firstly, the duodenal papilla is incised, so that a choledochoscope can enter the biliary tract conveniently, the choledochoscope explores the bile duct to determine the position of stones, then the stones are placed into the biliary tract endoscope, thehandle 7 is held by hand, thehandle 7 is provided with theliquid injection port 71, under the direct vision of the choledochoscope, the basket formed by thebasket wires 4 is pushed out from the containingcomponent 6 through theinhaul cable mechanism 8, the basket is opened, after the basket completely surrounds the stones, the basket is closed through theinhaul cable mechanism 8, stones are grasped, the stones are slowly taken out of the bile duct, and the step of removing stones is completed.

As shown in fig. 9, thestorage unit 6 includes a volume-increasingtube 61 and anelastic tube 62, one end of theelastic tube 62 is connected to thehandle 7, the other end of theelastic tube 62 is connected to the volume-increasingtube 61, and the inner diameter of the volume-increasingtube 61 is larger than the inner diameter of theelastic tube 62. Because the inner diameter of theelastic tube 62 is smaller, the arrangement of thecapacity increasing tube 61 can increase the retracting space of the net basket, and the difficulty in the net basket retraction is avoided.

The capacitance-increasingtube 61 may be a hypotube, a spring tube, a braided tube, or the like.

Specifically, thecompatibilizing tube 61 and theelastic tube 62 are welded.

In some embodiments, the outer surface of thebulk head 61 is coated or overmolded with a low coefficient of friction material to allow the leading end of the stone extraction basket to pass smoothly through the endoscopic forceps channel.

Wherein, the material with low friction coefficient can be resin, high molecular coating material or lubricating grease material.

In at least one embodiment, the low coefficient of friction material is PTFE (polytetrafluoroethylene).

In addition, as shown in fig. 9, thecable mechanism 8 includes acable assembly 81 and acable handle 82, one end of thecable assembly 81 is connected to the basket formed by the plurality ofbasket wires 4 through a connecting member, and the other end is connected to thecable handle 82.

In summary, the front end cap assembly and the choledochoscope lithotomy basket provided in the embodiments of the first and second aspects of the present invention have the following advantages:

1. the side surface of theend cap body 2 is provided with a plurality of through holes, the position of thebasket wire 4 is limited through a limitingcavity 5 between the limiting connectingpiece 3 and theend cap body 2, the opening area is enlarged, the opening difficulty is reduced, and the product percent of pass is improved;

2. when in processing, the outer diameter of the end cap body can be reduced to 1mm or the outer diameter is smaller than 1mm, even if the number of the basket wires is increased, the outer diameter of the end cap body does not need to be increased greatly or even increased, and the popularization of a choledochoscope lithotomy technique is facilitated;

3. during assembly, only one through hole is needed to be penetrated by onebasket wire 4, so that the assembly process is simpler;

4. the part of thecap body 2 extending into thelimit connecting piece 3 and/or the inner wall of thelimit connecting piece 3 are/is provided with limit grooves, so that the basket is ensured to have good stability;

5. the end part of theelastic pipe 62 is welded with thecapacity increasing pipe 61, so that the withdrawing space of the net basket can be increased, and the difficulty in the withdrawing of the net basket is avoided.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

Translated fromChinese

1.一种前端帽组件，其特征在于，包括端帽本体(2)以及套装于所述端帽本体(2)上的限位连接件(3)；1. A front end cap assembly, characterized in that it comprises an end cap body (2) and a limit connector (3) sleeved on the end cap body (2);所述端帽本体(2)伸入所述限位连接件(3)的部分具有用于穿设网篮丝(4)的多个通孔(21)，各个所述通孔开设于所述端帽本体(2)的侧面；The part of the end cap body (2) extending into the limit connecting piece (3) has a plurality of through holes (21) for passing the basket wire (4), each of the through holes is opened in the the side of the end cap body (2);所述限位连接件(3)与所述端帽本体(2)之间形成用于限定所述网篮丝(4)位置的限位腔(5)。A limiting cavity (5) for limiting the position of the basket wire (4) is formed between the limiting connecting piece (3) and the end cap body (2).2.根据权利要求1所述的前端帽组件，其特征在于，各个所述通孔分布于所述端帽本体(2)的不同高度。2 . The front end cap assembly according to claim 1 , wherein each of the through holes is distributed at different heights of the end cap body ( 2 ). 3 .3.根据权利要求2所述的前端帽组件，其特征在于，所述多个通孔(21)包括至少一个第一通孔(211)和至少一个第二通孔(212)，所述第一通孔(211)的轴线与所述第二通孔(212)的轴线具有夹角；且所述第一通孔(211)和所述第二通孔(212)沿着所述端帽本体(2)的高度方向间隔分布。3. The front end cap assembly according to claim 2, wherein the plurality of through holes (21) comprise at least one first through hole (211) and at least one second through hole (212), the first through hole (212) The axis of a through hole (211) has an included angle with the axis of the second through hole (212); and the first through hole (211) and the second through hole (212) are along the end cap The body (2) is distributed at intervals in the height direction.4.根据权利要求3所述的前端帽组件，其特征在于，所述第一通孔(211)配置为两个，所述第二通孔(212)配置为一个。4. The front end cap assembly according to claim 3, wherein the first through holes (211) are configured as two, and the second through holes (212) are configured as one.5.根据权利要求2所述的前端帽组件，其特征在于，任意两个所述通孔的轴线具有夹角。5 . The front end cap assembly according to claim 2 , wherein the axes of any two through holes have an included angle. 6 .6.根据权利要求5所述的前端帽组件，其特征在于，沿着所述端帽本体(2)的高度方向，相邻的两个所述通孔的轴线间的夹角相同。6. The front end cap assembly according to claim 5, characterized in that, along the height direction of the end cap body (2), the included angle between the axes of two adjacent through holes is the same.7.根据权利要求1－6任一项所述的前端帽组件，其特征在于，所述端帽本体(2)伸入所述限位连接件(3)的部分包括多棱柱结构，所述多棱柱结构具有偶数个侧面，每一个通孔贯穿所述多棱柱相对设置的一对侧面。7. The front end cap assembly according to any one of claims 1 to 6, characterized in that, the part of the end cap body (2) extending into the limit connecting piece (3) comprises a polygonal prism structure, and the The polygonal prism structure has an even number of side surfaces, and each through hole penetrates a pair of opposite sides of the polygonal prism.8.根据权利要求1－6任一项所述的前端帽组件，其特征在于，所述端帽本体(2)伸入所述限位连接件(3)的部分和/或所述限位连接件(3)的内壁具有限位槽，所述限位槽用于安置所述网篮丝(4)。8. The front end cap assembly according to any one of claims 1-6, characterized in that the end cap body (2) extends into the part of the limit connecting piece (3) and/or the limit The inner wall of the connecting piece (3) is provided with a limiting groove, and the limiting groove is used for placing the basket wire (4).9.一种胆道镜下取石网篮，其特征在于，包括网篮丝(4)、收纳组件(6)、手柄(7)、拉索机构(8)以及如权利要求1－8任一项所述的前端帽组件，所述网篮丝(4)穿设于所述端帽本体(2)上，所述收纳组件(6)与所述手柄(7)连接，所述拉索机构(8)贯穿所述手柄(7)以及所述收纳组件(6)与所述网篮丝(4)背离所述端帽本体(2)的一端连接。9. A mesh basket for stone removal under choledochoscopy, characterized in that it comprises a mesh basket wire (4), a storage assembly (6), a handle (7), a cable mechanism (8) and any one of claims 1-8 In the front end cap assembly, the basket wire (4) is worn on the end cap body (2), the receiving assembly (6) is connected with the handle (7), and the cable mechanism ( 8) The handle (7) and the receiving assembly (6) are connected to the end of the basket wire (4) facing away from the end cap body (2).10.根据权利要求9所述的胆道镜下取石网篮，其特征在于，所述收纳组件(6)包括增容管(61)和弹性管(62)，所述弹性管(62)的一端与所述手柄(7)连接，所述弹性管(62)的另一端与所述增容管(61)连接，所述增容管(61)的内径大于所述弹性管(62)的内径。10. The basket for stone removal under choledochoscopy according to claim 9, characterized in that, the receiving assembly (6) comprises a capacity expansion tube (61) and an elastic tube (62), one end of the elastic tube (62) Connected to the handle (7), the other end of the elastic tube (62) is connected to the expansion tube (61), and the inner diameter of the expansion tube (61) is larger than the inner diameter of the elastic tube (62) .

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