CN211749881U

CN211749881U - Mechanical stone breaking device

Info

Publication number: CN211749881U
Application number: CN202020105828.4U
Authority: CN
Inventors: 于永涛; 姚春根; 程沅琪; 郑兴荣; 张子扬; 李辰晨; 李芳柄; 李雪影; 邱继阳
Original assignee: Zhejiang Medical Technology Co ltd
Current assignee: Zhejiang Medical Technology Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-10-27
Anticipated expiration: 2030-01-17

Abstract

The utility model provides a mechanical type rubble device, the device: a sheath defining a central channel and having an inlet and an outlet; the basket is arranged on the outer side of the sheath tube and is connected with the sheath tube, and the basket defines an accommodating space for accommodating the calculus; the positioning piece is telescopically arranged through the central channel of the sheath tube, and the distal end of the positioning piece is used for abutting against the calculus contained in the basket so as to limit the displacement of the calculus; the drill bit is arranged on the positioning piece and used for crushing stones.

Description

Mechanical stone breaking device

Technical Field

The utility model relates to a smash the calculus field, concretely relates to mechanical type rubble device.

Background

Intracorporeal Lithotripsy (IL) refers to a procedure for lithotripsy inside the human body with special instruments, including mechanical, hydroelectrical, ultrasound, laser, and pneumatic lithotripsy. IL has been a long-standing development over the last 20 years with improvements in urological intraluminal devices and procedures. Although External Shock Wave Lithotripsy (ESWL) has become the first treatment of upper urinary tract stones, IL remains an indispensable treatment for lower urinary tract stones, ureteral incarceration stones, giant kidney stones, etc., stones that are difficult to target or treat by ESWL, and severe stone streets following shock wave lithotripsy. For more than 10 years, mechanical, hydroelectric, ultrasonic and pneumatic ballistic lithotripters are adopted to treat urinary calculi;

in the extracorporeal shock wave lithotripsy, a liquid-electricity or electromagnetic shock wave generator is used for emitting high-energy shock waves to penetrate through a human body and focus on urinary tract stones in the body, the energy is released to smash the stones, stone fragments are naturally discharged, and less pain is caused; when large stones are encountered, the stones are broken first and then taken out; holmium laser lithotripsy is commonly used in urinary surgery at present, and the lithotripsy method causes the risks of stone displacement and large-area injury of mucous membranes.

SUMMERY OF THE UTILITY MODEL

To above problem, the utility model provides a mechanical type rubble device, the device:

a sheath defining a central channel and having an inlet and an outlet;

the basket is arranged on the outer side of the sheath tube and is connected with the sheath tube, and the basket defines an accommodating space for accommodating the calculus;

the positioning piece is telescopically arranged through the central channel of the sheath tube, and the distal end of the positioning piece is used for abutting against the calculus contained in the basket so as to limit the displacement of the calculus;

the drill bit is arranged on the positioning piece and used for crushing stones.

Preferably, the positioning member is a positioning tube through which the drill bit is pivotally disposed.

Preferably, the basket comprises a plurality of connecting wires, one ends of the connecting wires are gathered together to form an accommodating space, and the other ends of the connecting wires are respectively pivoted through the inner walls of the sheath tubes to realize axial movement of the connecting wires.

Preferably, the positioning tube has an axially extending tube body section and a flared section formed with the distal end of the tube body for positioning stones.

Preferably, the drill bit is pivoted through the tubular body and its active end is located at the flared section.

Preferably, the inner wall of the sheath tube is formed with a plurality of pivot holes which are uniformly distributed at circumferential intervals for a plurality of connecting lines to pivot through.

Preferably, said flared section forms a jaw.

Preferably, the connecting wire is a metal wire.

Preferably, the basket further comprises a positioning part for positioning the stones, and the positioning part is positioned at the gathering end of the connecting line.

Preferably, the positioning part and the positioning part are arranged in front and back opposite to each other so as to position the calculus therebetween.

Through the utility model discloses a target calculus can be fixed a position fast with setting element structure to the basket, avoids the displacement of calculus, and the setting of drill bit then realizes accurate physics on the basis that can fix a position and smashes the calculus.

Drawings

Fig. 1 is a schematic structural view of a mechanical crushing device provided by the present invention;

FIG. 2 is an enlarged view of portion a of FIG. 1;

fig. 3 is a transverse cross-sectional view of the sheath according to the present invention.

Detailed Description

The technical solution of the present invention or utility model will be further specifically described below by means of specific embodiments and with reference to the drawings of the specification;

in the description of the present invention, it is to be understood that the terms "front", "back", "upper", "lower", "far", "near", "axial" and "radial" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, and 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.

Referring to fig. 1 and 2, the present invention provides a mechanical stone breaking device, which includes a sheath tube 2, a basket 1, a positioning member 3 and a drill 4;

the sheath 2 defines a central channel and is provided with an inlet and an outlet so as to realize that various functional instruments enter the body through the sheath;

the basket 1 is arranged on the outer side of the sheath tube 2 and connected with the sheath tube 2, and the basket 1 defines an accommodating space for accommodating the calculus;

the positioning piece 3 is telescopically arranged through the central passage of the sheath tube, and the distal end of the positioning piece is used for abutting against the calculus contained in the basket 1 so as to limit the displacement of the calculus;

the drill bit 4 is arranged on the positioning piece 3, and the drill bit 4 is used for crushing stones;

through the utility model discloses a

basket

1 and 3 structures of setting element can fix a position target calculus fast, avoid the displacement of calculus, and the setting of drill bit realizes accurate physics on the basis that then can fix a position and smashes the calculus, the basket can realize directly taking out kibbling calculus from internal.

In some embodiments, the positioning member 3 is a positioning tube through which the drill bit 4 is pivotally disposed; therefore, the drill bit 4 can freely rotate in the positioning tube 3 to realize the rotary breaking of the calculus and the smooth taking out of the calculus after the calculus is collected by the basket 1, thereby reducing the burden of calculus discharging; specifically, the tail end of the drill is provided with a driving member for driving the drill to rotate, and the driving member includes, but is not limited to, a motor or a manual drive, so as to realize circumferential rotation of the drill;

in some embodiments, referring to fig. 2, the positioning tube 3 has an axially extending tube body section and a flared section formed with the distal end of the tube body to position stones; therefore, the pipe body is axially pivoted through by the drill bit, and the positioning area of the flaring section at the far end can be increased compared with that of the straight section, so that the positioning effect is better; the specific structure of the flaring section can be a clamping jaw structure, and the displacement of the calculus can be prevented to the maximum extent.

As a preferred embodiment, the basket 1 includes a plurality of connecting wires, one ends of the connecting wires are gathered together to form an accommodating space, and the other ends of the connecting wires are respectively pivoted through the inner walls of the sheath tubes 2 to realize axial movement of the connecting wires; therefore, the relative movement of the sheath tube and the basket 1 is realized under the condition of not occupying the space of the central channel in the sheath tube 2, so as to better position the calculus and limit the displacement of the calculus; the axial movement of the connecting wire enables the basket to move towards or away from the sheath tube, so that the calculus can be conveniently captured, and the phenomenon that the basket is fixed and is difficult to flexibly work is avoided; in this embodiment, please refer to fig. 3, a plurality of pivot holes are formed in the inner wall of the sheath tube, and are uniformly distributed at intervals in the circumferential direction, so that a plurality of connecting wires can be pivoted through the pivot holes, and thus, the axial movement of the basket is more uniform, and the stones are not easily positioned in the basket due to the uneven connection of the connecting wires and the inclination of the basket;

further preferably, the basket also comprises a positioning part 12 which is formed at the inner side of the basket and used for positioning the calculus, and the calculus can be stably positioned in the basket through the matching of the positioning part 12 and the flaring section; in the embodiment, the positioning part and the positioning part are arranged in front and back opposite to each other so as to position the calculus therebetween; the positioning part can be in the form of a positioning claw.

In this embodiment, the drill 4 is pivoted through the tube body of the positioning tube 3 and its working end (i.e. head end) is positioned at the flared section; when the inner wall of the flaring segment is abutted against the calculus, the drill bit can directly hit the calculus.

Optionally, the connecting wire is a metal wire, so that the structure is firmer and is not easy to damage.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A mechanical rock breaking device, characterized in that the device comprises:

a sheath (2) defining a central channel and having an inlet and an outlet;

the basket (1) is arranged on the outer side of the sheath tube (2) and connected with the sheath tube, and defines an accommodating space for accommodating stones;

the positioning piece (3) is telescopically arranged through the central channel of the sheath tube (2), and the distal end of the positioning piece is used for abutting against the calculus contained in the basket so as to limit the displacement of the calculus;

the drill bit (4) is arranged on the positioning piece (3), and the drill bit (4) is used for crushing stones.

2. The mechanical rock breaking apparatus of claim 1, wherein the positioning member is a positioning tube through which the drill bit is pivotally disposed.

3. The mechanical lithotripter of claim 1, wherein the basket comprises a plurality of connecting wires, one ends of the connecting wires are gathered together to form the accommodating space, and the other ends of the connecting wires are respectively pivoted through the inner walls of the sheaths to realize the axial movement of the connecting wires.

4. The mechanical lithotripter of claim 2, wherein the positioning tube has an axially extending tube body section and a flared section formed at a distal end of the tube body to position the stone.

5. The mechanical rock breaking apparatus of claim 4, wherein said drill bit is pivoted through said tube and has its active end positioned at said flared section.

6. The mechanical lithotripter of claim 3, wherein the sheath inner wall is formed with a plurality of circumferentially spaced evenly distributed pivot holes for a plurality of connecting wires to pivot through.

7. The mechanical rock breaking apparatus of claim 4, wherein the flared section forms a jaw.

8. The mechanical rock breaking apparatus of claim 3, wherein the connecting wire is a wire.

9. Mechanical lithotripter device according to claim 3, wherein the basket further comprises a positioning portion (12) for positioning stones, the positioning portion being positioned at the converging end of the connecting wire.

10. The mechanical lithotripter of claim 9, wherein the positioning portion is positioned in front of and behind the positioning member to position the stone therebetween.