CN217285963U

CN217285963U - Two-section type three-wire variable-range stone-taking basket device

Info

Publication number: CN217285963U
Application number: CN202122988566.8U
Authority: CN
Inventors: 王宝; 杨加朋; 严韧; 陈兴鹏; 常健
Original assignee: Suzhou Beiyong Medical Technology Co ltd
Current assignee: Suzhou Beiyong Medical Technology Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-08-26
Anticipated expiration: 2031-12-01

Abstract

The utility model discloses a two-section type three-wire variable-range stone-taking basket device, which comprises a core bar, a push rod arranged outside the core bar and a shell arranged outside the push rod, wherein the front end of the core bar is provided with a convex guide block, the middle rear part of the core bar is provided with a convex first baffle, the inner side of the push rod is also provided with a guide groove, the guide block extends into the guide groove, and the tail ends of the core bar and the shell are provided with tail end screw caps for fixing the core bar and the shell; still include secondary push rod subassembly and get stone basket subassembly, secondary push rod subassembly set up in the push rod and with push rod sliding connection, get stone basket subassembly include three silk screen baskets and cover and establish the outside basket sheath pipe in three silk screen baskets, three silk screen basket tail ends are fixed at the core bar tail end, basket sheath pipe tail end is fixed at secondary push rod subassembly front end, and two segmentation controls can be realized to the degree of opening of three silk screen baskets front end to this structure makes three silk screen baskets front end open bigger, thereby makes this structure application range wider.

Description

Two-section type three-wire variable-range stone-taking basket device

Technical Field

The utility model relates to the field of medical equipment, in particular to stone basket device of getting of three variable ranges of two segmentations.

Background

Get stone basket and generally be the product that urinary system calculus and common bile duct calculus need be used, when generally starting the rubble, the stone is unable fixed, just needs to get the fixed rubble of stone basket, if get the stone outward moreover, also need use and get stone basket. The existing calculus removing basket is single in structure and can only achieve one-section calculus removing, the opening range of the front end of the basket is small, when a large calculus is encountered, the one-section calculus removing basket needs to be put down at another position after grabbing, the opening range of the one-section calculus removing basket is small, and therefore the calculus cannot be completely put down, and the follow-up treatment process is influenced.

For example, chinese patent 201911135242.0 discloses a three-thread variable-distance stone-taking basket device and a method for using the same, wherein the device comprises: the mesh basket is unfolded or contracted through the operation of the control handle, wherein when the mesh basket is unfolded, the mesh basket is in a triangular cone shape, and the bottom surface of the mesh basket is in an open shape; when the net basket is contracted, the whole stone-taking net basket is contracted into the sheath tube. Compared with a four-wire basket, the three-wire variable-range stone-taking basket device can more conveniently and accurately grab stones in a body and cannot damage blood vessels.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide an expand basket opening scope, can realize the stone basket device of getting of three silk variable ranges of two segmentation types of two-section control.

The utility model provides a technical scheme that its technical problem adopted is: the two-section three-wire variable-range stone taking basket device comprises a core bar, a push rod arranged outside the core bar and a shell arranged outside the push rod, wherein a protruding guide block is arranged at the front end of the core bar, a protruding first baffle plate is arranged at the middle rear part of the core bar, a guide groove is further formed in the inner side of the push rod, the guide block extends into the guide groove, so that the core bar and the push rod can slide relatively, and tail end screw caps for fixing the core bar and the shell are arranged at the tail ends of the core bar and the shell;

still include secondary push rod subassembly and get stone basket subassembly, secondary push rod subassembly set up in the push rod and with push rod sliding connection, get stone basket subassembly include three silk screen baskets and cover establish the outside basket sheath pipe in three silk screen baskets, three silk screen basket tail ends are fixed at the core bar tail end, basket sheath pipe tail end is fixed at secondary push rod subassembly front end for when pushing away after push rod and secondary push rod, three silk screen baskets front end are the state of opening, when push rod and secondary push rod forward push, three silk screen basket front ends are the shrink state.

Further, the method comprises the following steps: the secondary push rod assembly comprises a push rod head, a boosting pipe is arranged in the push rod head in a penetrating mode, one end of the boosting pipe is fixedly connected with the push rod head, a second baffle is arranged in the middle of the inner side of the push rod, a spring is sleeved on the boosting pipe and located between the second baffle and the push rod head, and a protruding block in side face contact with the front end of the push rod is arranged at the tail end of the push rod head.

Further, the method comprises the following steps: the push rod head is characterized in that the tail end of the push rod head is of a buckle structure, the lug is arranged on the buckle structure, the outer side face of the lug is of an inclined face structure and inclines from one side close to the front end of the push rod head to the other side.

Further, the method comprises the following steps: the push rod head front end still is provided with stress dispersion pipe, stress dispersion pipe one end and push rod head fixed connection, basket sheath pipe tail end and stress dispersion pipe fixed connection.

Further, the method comprises the following steps: the push rod is characterized in that one side of the push rod is provided with a protruding push-pull block, a notch is formed in the shell in a penetrating mode, the push-pull block can extend out of the notch, the tail end of the core rod is provided with a clamping block, the clamping block comprises a left clamping block and a right clamping block, a gap is formed between the left clamping block and the right clamping block, the tail end of the shell is provided with a threaded structure, and the tail end nut is in threaded connection with the tail end of the shell.

Further, the method comprises the following steps: and the tail end of the three-wire mesh basket is sequentially crimped with a protection tube.

Further, the method comprises the following steps: the opposite surfaces of the left clamping block and the right clamping block are provided with arc-shaped grooves matched with the tails of the three wire mesh baskets, so that when the left clamping block and the right clamping block are clamped by external force, the tails of the three wire mesh baskets can be fixed between the left clamping block and the right clamping block.

Further, the method comprises the following steps: the surface of the push-pull block is provided with a concave-convex anti-slip groove.

Further, the method comprises the following steps: and a push block is vertically arranged on the surface of the secondary push rod assembly.

The utility model has the advantages that:

1 this structure can realize realizing two segmentation controls to the degree of opening of three wire basket front ends to it is bigger to make three wire basket front ends open, thereby makes this structure application range wider.

2 the setting through stress dispersion pipe can play the supporting role in this structure, can prevent that the silk pipe of three wire mesh baskets from bending.

And 3, the three wires of the three wire mesh baskets can play a supporting and protecting role due to the arrangement of the external protection tubes of the three wire mesh baskets.

Drawings

Fig. 1 is a schematic structural view of a two-section three-wire variable-range calculus removing basket device according to an embodiment of the present application.

Fig. 2 is a cross-sectional view of a two-section three-wire variable range calculus removing basket device according to an embodiment of the present application.

Fig. 3 is a schematic structural view of a core rod of the two-segment three-wire variable-range stone extraction basket device according to the embodiment of the present application.

Fig. 4 is a schematic structural view of a push rod of the two-stage three-wire variable-range stone-taking basket device according to the embodiment of the present application.

Fig. 5 is a schematic view of a putter head structure of a two-stage three-wire variable range stone extraction basket device according to an embodiment of the present application.

Fig. 6 is a schematic view of a three-wire basket structure of a two-stage three-wire variable range calculus removing basket device according to an embodiment of the present application.

Fig. 7 is a schematic view of another perspective view of a three-wire basket structure of a two-stage three-wire variable range calculus removing basket device according to an embodiment of the present application.

Labeled as: 1. a secondary push rod assembly; 11. a putter head; 12. a bump; 13. a push block; 2. a push rod; 21. a guide groove; 22. a second baffle; 23. a push-pull block; 3. a core bar; 31. a guide block; 32. a first baffle plate; 33. a left clamping block; 34. A right clamping block; 35. an arc-shaped slot; 4. a tail end nut; 5. a stress dispersion tube; 6. a boosting pipe; 7. a spring; 8. a housing; 9. Protecting the tube; 10. a basket sheath tube; 110. three-wire net basket.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 4, the embodiment of the present application discloses a two-section three-wire variable range stone-taking basket device, which comprises a core rod 3, a push rod 2 mounted outside the core rod 3, and a shell 8 mounted outside the push rod 2. The front end of the core rod 3 is provided with a convex guide block 31, and the middle rear part of the core rod 3 is provided with a convex first baffle 32. The inner side of the push rod 2 is further provided with a guide groove 21, and the guide block 31 extends into the guide groove 21, so that the core rod 3 and the push rod 2 can slide relatively. And tail end screw caps 4 for fixing the core rod 3 and the shell 8 are arranged at the tail ends of the core rod 3 and the shell 8.

Still include secondary push rod subassembly 1 and get stone basket subassembly, secondary push rod subassembly 1 sets up in push rod 2 and with push rod 2 sliding connection, it includes three wire baskets 110 and the basket sheath pipe 10 of establishing at three wire baskets 110 outsides to get stone basket subassembly. The tail end of the three-wire basket 110 is fixed at the tail end of the core rod 3, and the tail end of the basket sheath tube 10 is fixed at the front end of the secondary push rod assembly 1, so that when the push rod 2 and the secondary push rod 2 push backwards, the front end of the three-wire basket 110 is in an open state, and when the push rod 2 and the secondary push rod 2 push forwards, the front end of the three-wire basket 110 is in a contracted state.

Specifically, as shown in fig. 6 and 7, the three-wire basket 110 is made of a titanium-nickel wire, the basket sheath tube 10 is made of a braided tube, the basket is a three-petal flower-shaped endless basket, each petal of the three-petal flower is formed by bending an independent basket wire 7, and the top of the petal is arc-shaped.

At the initial position, the push rod 2 is in an extending state relative to the core rod 3, the front end of the three-wire basket 110 is contracted in the basket sheath tube 10 at the moment, when the calculus needs to be grabbed, the push rod 2 is pushed to move backwards to the first baffle 32, the push rod 2 drives the basket sheath tube 10 to move backwards synchronously, because the three-wire basket 110 does not move, the basket end at the front end of the three-wire basket 110 can extend out of the basket sheath tube 10 to be in an opening state, so that the calculus can be grabbed, the push rod 2 is pushed forwards to grasp the calculus, when the calculus needs to be put down, and the calculus is overlarge at the moment, even if the push rod 2 is pushed backwards to the tail end, the push rod secondary push rod component 1 is pulled backwards, so that the secondary push rod component 1 moves backwards relative to the push rod 2, namely, the basket sheath tube 10 is further driven to move backwards, and the extending length of the front end of the three-wire basket 110 is increased, the opening degree of the three-wire basket 110 is higher, so that the calculus can be smoothly put down.

The design of above-mentioned structure can realize realizing two segmentation controls to the degree of opening of three wire basket 110 front ends to it is bigger to make three wire basket 110 front ends open, thereby makes this structure application range wider.

In this embodiment, as shown in fig. 2, secondary push rod subassembly 1 includes push rod head 11, push rod head 11 is inside to wear to be equipped with boosting pipe 6, 6 one end of boosting pipe and push rod head 11 fixed connection, 2 inboard middle parts of push rod are provided with second baffle 22, spring 7 has been cup jointed on boosting pipe 6, spring 7 is located between second baffle 22 and the push rod head 11, push rod head 11 tail end is provided with 2 front end medial surface contact's of push rod lug 12.

When specifically carrying out two-stage stroke operation, draw the putter head 11 back, the putter head 11 can drive basket sheath pipe 10 and continue backward movement this moment to the extension length of three wire net baskets 110 front ends has been increaseed, makes three wire net baskets 110 open degree higher, thereby can be smooth put down the calculus, spring 7 this moment is compression state simultaneously, and after the calculus was accomplished and is put down the action, spring 7 drive putter head 11 reseed, resumes to one section stroke.

The arrangement of the structure can realize the increase of the backward stroke of the basket sheath tube 10 through the design of the secondary push rod component 1 under the condition that the length of the device is not increased, thereby increasing the expansion degree of the front end of the three-wire basket 110.

In this embodiment, as shown in fig. 5, the rear end of the putter head 11 is provided with a buckle structure, the protrusion 12 is provided on the buckle structure, and the outer side surface of the protrusion 12 is an inclined surface structure and inclines from one side close to the front end of the putter head 11 to the other side.

When installing putter head 11, can directly snap putter head 11 into putter 2 to the installation of putter head 11 and putter 2 is realized.

The structure is characterized in that the outer side surface of the projection 12 is designed to be an inclined surface structure, so that the push rod head 11 can be conveniently mounted and dismounted, and the use is convenient.

In this embodiment, as shown in fig. 1, the front end of the putter head 11 is further provided with a stress dispersion tube 5, one end of the stress dispersion tube 5 is fixedly connected with the putter head 11, and the tail end of the basket sheath tube 10 is fixedly connected with the stress dispersion tube 5.

The stress dispersion tube 5 is used to support the wire tube of the three-wire basket 110 and prevent the wire tube from being bent.

In this embodiment, as shown in fig. 2, a protruding push-pull block 23 is arranged on one side of the push rod 2, a notch is formed in the outer shell in a penetrating manner, the push-pull block 23 can extend out of the notch, a clamping block is arranged at the tail end of the core rod 3, the clamping block comprises a left clamping block 33 and a right clamping block 34, a gap is formed between the left clamping block 33 and the right clamping block 34, a thread structure is arranged at the tail end of the outer shell, the tail end nut 4 is in threaded connection with the tail end of the outer shell, and an arc-shaped groove 35 matched with the tail of the three-wire basket 110 is formed in the opposite surface of the left clamping block 33 and the right clamping block 34, so that when the left clamping block 33 and the right clamping block 34 are clamped by external force, the tail of the three-wire basket 110 can be fixed between the left clamping block 33 and the right clamping block 34.

When the three-wire basket displacement control device is used, human fingers can be placed at the push-pull block 23 to perform displacement control on the push rod 2, the clamping block is located in the threaded structure at the tail end of the shell, the tail portion of the three-wire basket 110 extends into the clamping block, when the tail end nut 4 is screwed with the threaded structure, the left clamping block 33 is in contact with the right clamping block 34, the tail portion of the three-wire basket 110 is clamped, and meanwhile the shell and the core rod 3 are fixed through the tail end nut 4.

The push rod 2 can be conveniently controlled through the arrangement of the push-pull block 23, and meanwhile, the shell and the core rod 3 can be conveniently fixed and detached through the arrangement of the rear clamping mechanism, the tail end screw cap 4 and other structures.

In this embodiment, the tail end of the three-wire basket 110 is sequentially crimped with the protection tube 9, the protection tube 9 may be a single layer or a plurality of layers, and is set to 2 layers in this application, and the protection tube 9 is made of metal.

The three wires at the rear of the three-wire basket 110 can be supported and prevented from bending by the protective tube 9.

In this embodiment, the surface of the push-pull block 23 is provided with a concave-convex anti-slip groove, and the surface of the secondary push rod assembly 1 is vertically provided with the push block 13.

The friction between the fingers and the push-pull block 23 can be increased by the arrangement of the anti-skid grooves in the structure, the surface of the push-pull block 23 slides by the reverse hand, and the push block 13 can be supported by the hand, so that the secondary push rod assembly 1 can be conveniently used.

The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Two-section type stone-taking net basket device with three variable ranges is characterized in that: the novel push rod comprises a core rod (3), a push rod (2) installed outside the core rod (3) and a shell (8) installed outside the push rod (2), wherein a protruding guide block (31) is arranged at the front end of the core rod (3), a protruding first baffle (32) is arranged at the middle rear part of the core rod (3), a guide groove (21) is further formed in the inner side of the push rod (2), the guide block (31) extends into the guide groove (21) to enable the core rod (3) and the push rod (2) to slide relatively, and tail end nuts (4) used for fixing the core rod (3) and the shell (8) are arranged at the tail ends of the core rod (3) and the shell (8);

still include secondary push rod subassembly (1) and get stone basket subassembly, secondary push rod subassembly (1) set up in push rod (2) and with push rod (2) sliding connection, get stone basket subassembly include three wire basket (110) and cover establish basket sheath pipe (10) at three wire basket (110) outsides, three wire basket (110) tail ends are fixed at core bar (3) tail end, basket sheath pipe (10) tail end is fixed at secondary push rod subassembly (1) front end for when push rod (2) and secondary push rod (2) back-push, three wire basket (110) front end is the state of opening, when push rod (2) and secondary push rod (2) forward-push, three wire basket (110) front ends are the shrink state.

2. The two-segment three-wire variable-range stone-taking basket device according to claim 1, wherein: secondary push rod subassembly (1) includes push rod head (11), push rod head (11) is inside to wear to be equipped with boosting pipe (6), boosting pipe (6) one end and push rod head (11) fixed connection, push rod (2) inboard middle part is provided with second baffle (22), spring (7) have been cup jointed on boosting pipe (6), spring (7) are located between second baffle (22) and push rod head (11), push rod head (11) tail end is provided with lug (12) of push rod (2) front end medial surface contact.

3. The two-stage three-wire variable-range stone-taking basket device according to claim 2, characterized in that: the tail end of the push rod head (11) is arranged to be of a buckle structure, the bump (12) is arranged on the buckle structure, the outer side face of the bump (12) is of an inclined face structure, and the bump is inclined towards the other side from one side close to the front end of the push rod head (11).

4. The two-segment three-wire variable-range stone-taking basket device according to claim 2, wherein: push rod head (11) front end still is provided with stress dispersion pipe (5), stress dispersion pipe (5) one end and push rod head (11) fixed connection, basket sheath pipe (10) tail end and stress dispersion pipe (5) fixed connection.

5. The two-stage three-wire variable-range stone-taking basket device according to claim 1, characterized in that: the push rod (2) one side is provided with outstanding push-pull piece (23), it is provided with the notch to run through on the shell, push-pull piece (23) can be followed the notch and stretched out, core bar (3) tail end is provided with presss from both sides tight piece, press from both sides tight piece including left clamp tight piece (33) and right clamp tight piece (34), it is provided with the clearance to press from both sides between tight piece (33) and the right clamp tight piece (34) to press from both sides on a left side, the shell tail end is provided with helicitic texture, tail end nut (4) and shell tail end threaded connection.

6. The two-stage three-wire variable-range stone-taking basket device according to claim 5, wherein: the tail end of the three-wire basket (110) is sequentially connected with a protection pipe (9) in a crimping mode.

7. The two-segment three-wire variable-range stone-taking basket device according to claim 6, wherein: the opposite surfaces of the left clamping block (33) and the right clamping block (34) are provided with arc-shaped grooves (35) matched with the tail parts of the three-wire net baskets (110), so that when the left clamping block (33) and the right clamping block (34) are clamped by external force, the tail parts of the three-wire net baskets (110) can be fixed between the left clamping block (33) and the right clamping block (34).

8. The two-segment three-wire variable-range stone-taking basket device according to claim 5, wherein: the surface of the push-pull block (23) is provided with a concave-convex anti-slip groove.

9. The two-stage three-wire variable-range stone-taking basket device according to claim 1, characterized in that: and a push block (13) is vertically arranged on the surface of the secondary push rod assembly (1).