CN219538435U

CN219538435U - Stone taking mechanism

Info

Publication number: CN219538435U
Application number: CN202222642951.1U
Authority: CN
Inventors: 李芳柄; 彭守强; 李雪影; 韩杨斌; 刘建
Original assignee: Zhejiang Medical Technology Co ltd
Current assignee: Zhejiang Medical Technology Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2023-08-18
Anticipated expiration: 2032-09-29

Abstract

The utility model provides a stone removing mechanism, which comprises a handle, a trigger key, a rotating seat, a basket sheath tube and a basket hauling rope, wherein the handle defines a channel A extending from a proximal end to a distal end, the trigger key can be axially and slidably arranged on the handle, the rotating seat 5 is rotatably arranged on the handle, the rotating seat defines a channel B, the basket sheath tube extends from the proximal end to the distal end, the basket sheath tube 3 penetrates through the rotating seat and is fixedly connected with the handle, the basket sheath tube 3 defines a containing channel C, the containing channel C is communicated with the channel A and the channel B to form a through cavity extending from the proximal end to the distal end so as to provide an axial channel for axial hauling of the hauling rope 100, and the hauling rope 100 penetrates through the axial channel.

Description

Stone taking mechanism

Technical Field

The utility model relates to a stone removing mechanism.

Background

At present, when a stone taking basket is used for taking large stones, the stone taking basket cannot be directly taken out, the stones are blocked by a plugging device and are broken by laser, and then the stone taking basket is used for taking out. The process needs to insert the plugging device first, withdraw the plugging device after the calculus is broken, and insert the calculus removing basket to remove the calculus. Because calculus scatters in the human body after smashing, calculus size is different, and the calculus removal basket can't once take out calculus, need take over many times, and some calculus distribution is wider, and doctor only can receive the calculus into Dan Wanglan after need rotating whole handle messenger basket rotation to and traditional basket size is single, can't take over the calculus of equidimension, consequently need change the calculus removal basket of equidimension not, leads to operation time extension, increases patient's operation risk and discomfort.

Disclosure of Invention

The utility model provides a stone removing mechanism, which comprises a basket, and further comprises:

a handle defining a channel a extending distally from a proximal end thereof;

a trigger key axially slidably mounted on the handle;

a rotatable seat rotatably mounted on the handle, said rotatable seat defining a channel B,

the basket sheath tube penetrates through the rotating seat and is fixedly connected with the handle, the basket sheath tube defines a containing channel C, the containing channel C is communicated with the channel A and the channel B, the proximal end of the basket is intensively bound in the bundling tube, and the bundling tube is in sliding fit with the basket sheath tube;

the haulage rope penetrates through the accommodating channel C, the channel A and the channel B, one end of the haulage rope is connected with the far end of the basket, the other end of the haulage rope is connected with the trigger key, the axial sliding of the trigger key drives the basket to be accommodated in the basket sheath tube through the haulage rope, the haulage rope is in axial sliding fit with the rotating seat, and the rotation of the rotating seat drives the basket to rotate together through the haulage rope.

Preferably, the mechanism further comprises a connecting pipe, a limiting cavity which is circumferentially limited with the outer wall of the connecting pipe is formed in the rotating seat, and at least part of the traction rope is fixed in the connecting pipe.

Preferably, the handle is provided with an axially extending chute, and the trigger key is slidably matched with the chute.

Preferably, the traction rope is nickel titanium wire.

Preferably, the rotating seat is a rotating disc rotatably arranged at the far end of the handle, and the basket sheath tube penetrates through the rotating disc and is fixedly connected with the inner side of the handle.

Preferably, the cross section outline of the connecting pipe and the limiting cavity is square.

Preferably, the exposed section of the basket sheath tube is provided with a soft sleeve.

Preferably, the connecting pipe is a square pipe, and the limiting cavity is a square cavity.

Preferably, the rotating disc is provided with a pressing concave surface which is convenient for poking the finger belly.

Preferably, the proximal side of the rotating disc is formed with a circumferentially extending rotating protruding strip, the distal side of the inner wall of the handle is concavely formed with a circumferential annular groove, and the rotating protruding strip is rotatably clamped into the circumferential annular groove to realize rotatable connection of the handle and the rotating disc.

Through the basket provided by the utility model, the whole stone is wrapped by the large net opening at the near end. Then carries out the stone breaking operation, in the stone breaking process, because the far-end close net mouth is very small, the small stones generated by the stone breaking means can be more effectively collected, the stones are more effectively blocked, the operation time of the operation is reduced, and the operation of doctors is convenient.

The basket provided by the utility model can integrally rotate, so that the angle of the basket is converted in operation, the technical problem that some stones cannot be caught due to the limitation of the angle of the basket is avoided, and the operation efficiency is greatly improved.

Drawings

Fig. 1-2 are schematic structural views of a stone removing mechanism provided by the utility model;

fig. 3 is a structural cross-sectional view of the stone removing mechanism provided by the utility model.

Description of the embodiments

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "near," "far," "top," "bottom," "circumferential," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the mechanisms or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, directly connected, indirectly connected through an intermediary, or communicating between two members. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 3, the utility model provides a stone removal basket mechanism, which comprises a handle 6, a trigger key 7, a rotating seat 5, a basket sheath tube 3, a basket 2 and a hauling rope 100, wherein the handle 6 defines a channel a extending from a proximal end to a distal end, the trigger key 7 is axially slidably mounted on the handle 6, the rotating seat 5 is rotatably mounted on the handle 6, the rotating seat 5 defines a channel B, the basket sheath tube 3 extends from the proximal end to the distal end, the basket sheath tube 3 penetrates through the rotating seat 5 and is fixedly connected with the handle, the basket sheath tube 3 defines a containing channel C, the containing channel C is communicated with the channel a and the channel B to form a through cavity extending from the proximal end to the distal end so as to provide an axial channel for axial hauling of the hauling rope 100, and the hauling rope 100 penetrates through the axial channel.

The basket 2 provided in this embodiment is a four-wire basket, that is, the basket is composed of four nickel titanium wires, the distal end of the basket 2 is connected integrally, the proximal end of the basket is intensively bound to the bundling tube 1, the basket nickel titanium wires are intensively bound and fixed through the bundling tube, and the bundling tube 1 is in sliding fit with the basket sheath tube.

One end of the hauling cable 100 is connected with the basket 2, specifically, one end of the hauling cable 100 is connected with the far end of the basket 2, the other end of the hauling cable is connected with the trigger key 7, the axial sliding of the trigger key 7 drives the basket 2 to be accommodated in the basket sheath tube 3 through the hauling cable 100, and the hauling cable 100 is axially slidably matched with the rotating seat 5, so that the rotating seat 5 can drive the hauling cable to rotate together, when a user rotates the rotating seat 5, the hauling cable 100 penetrating through the accommodating channel C, the channel A and the channel B and slidably matched with the rotating seat also rotates together, the rotation of the hauling cable made of nickel titanium wires drives the fixed basket 2 to rotate together at the same time, synchronous rotation of the hauling cable 100 and the basket sheath tube 3 is realized, and the user can conveniently rotate the basket to an ideal angle to cover stones at a specific position.

Through the stone removing mechanism provided by the utility model, the hauling rope 100 moves axially under the drive of the trigger key 7, so that the deployment and folding of the basket 2 in the basket sheath tube 3 can be realized. Meanwhile, the traction rope 100 is designed to rotate along with the rotating seat 5, so that the rotatable stone removing operation of the basket is realized. Based on this, the present utility model makes the following structural design for the traction rope 100 and the swivel base: the part of the traction rope 100 is fixed in the connecting pipe 8. In this embodiment, the traction rope is clamped in the connecting pipe 8 by the clamping of the connecting pipe 8, a limiting cavity 50 that is circumferentially limited with the outer wall of the connecting pipe 8 is formed in the rotating seat 5, and the "circumferentially limiting" herein means that the limiting cavity allows the connecting pipe 8 to axially displace relative to the rotating seat, and in the circumferential direction, the connecting pipe rotates together with the rotating seat. In some embodiments, the cross section of the spacing cavity and the connecting pipe is non-circular. The connection pipe 8 is a square pipe, and the limiting cavity 50 is a square cavity, so that the square pipe 8 connected with the traction rope 100 drives the square pipe 8 to axially displace along the limiting cavity 50 under the driving of the trigger key 7; and when the rotating seat 5 rotates, the rotating seat 5 limited with the circumference of the square tube 8 drives the square tube 8 to synchronously rotate in the circumferential direction, and then drives the traction rope 100 to rotate in the circumferential direction, so that the axial movement and the circumferential rotation of the traction rope 100 are finally realized.

Optionally, an axially extending chute is formed on the handle, the trigger key is slidably matched with the chute, the trigger key penetrates through the handle to form a limiting seat, and the proximal end of the traction rope is fixedly connected with the limiting seat.

In this embodiment, the rotating seat 5 is a rotating disc 5 rotatably mounted at the distal end of the handle, and the basket sheath tube is rotatably connected to the rotating disc and then fixedly connected to the handle. Thus, the handle and basket sheath remain stationary as the rotatable disk rotates. Optionally, a pressing concave surface convenient for finger belly poking is designed on the rotating disc.

In the embodiment, a part of the exposed section of the basket sheath tube 3 is provided with a soft sleeve 4; specifically, the proximal side of the illustrated rotating disk 5 forms a circumferentially extending rotating rib, the distal side of the inner wall of the illustrated handle 6 is recessed to form a circumferential ring groove into which the illustrated rotating rib is rotatably snapped to achieve rotatable connection of the handle to the rotating disk.

The structural design of the basket sheath and the rotating disc and handle can be varied by a person skilled in the art through the principles described above. Optionally, the rolling disc 5 be connected with the rotation of basket sheath pipe 3, handle and rolling disc normal running fit and its inboard extension of orientation rolling disc simultaneously form the extension, the extension is connected with the basket sheath pipe that stretches into the rolling disc, the proximal outer wall of basket sheath pipe form a plurality of bulge loops, the spacing draw-in groove that forms in these a plurality of bulge loops spacing complex from near side to distal side on the hose, so, the rolling disc can compare the rotation of handle and basket sheath pipe, when realizing that the basket rotates and pulls, make things convenient for the part equipment.

Specifically, the trigger key is a push key, the push key 7 is mounted on the handle, and the push key 7 can be along the handle. 6, the sliding groove on the handle 6 moves linearly and drives the traction rope to move back and forth, and the basket sheath tube 3 is fixed on the handle 6 through the soft head 4. When the push button is pulled backwards, the stone removal basket 2 is retracted backwards into the basket sheath 3. Similarly, when the pushing key is pushed forwards, the stone taking basket 2 is pushed out of the basket sheath tube 3, so that the stone can be cleaned, and the position of the stone taking basket 2 can be adjusted by rotating the rotary table 5 to remove stones more effectively.

The utility model further provides a use method of the stone removal basket mechanism, which comprises the following steps: the rotating seat is rotated, the rotating seat drives the basket and the traction rope to rotate together, the trigger key is pushed, and the traction rope drives the basket to retract.

According to the stone extraction method provided by the utility model, the stone extraction basket is not required to be used for extracting broken stone, redundant actions are not required, and the risk that the broken stone cannot be extracted in time and the tissue falls is eliminated. The utility model realizes the rotation of the basket, has simple and convenient operation and can more timely and effectively take out the stones.

In the description herein, reference to the term "embodiment," "example," etc., means 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 utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. 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 utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A stone retrieval mechanism comprising a basket, the mechanism further comprising:

a handle defining a channel a extending distally from a proximal end thereof;

a trigger key axially slidably mounted on the handle;

2. The stone removal mechanism as claimed in claim 1, further comprising a connecting tube, wherein a limiting cavity is formed in the rotating seat and is circumferentially limited to the outer wall of the connecting tube, and the traction rope is at least partially fixed in the connecting tube.

3. The stone removal mechanism of claim 1, wherein the handle is provided with an axially extending chute, and the trigger key is slidably engaged with the chute.

4. The stone removal mechanism of claim 1, wherein the pull cord is a nickel titanium wire.

5. The stone removal mechanism of claim 1, wherein the rotating base is a rotating disc rotatably mounted at the distal end of the handle, and the basket sheath is fixedly connected to the inner side of the handle after penetrating through the rotating disc.

6. The stone removal mechanism of claim 2, wherein the connecting tube and the spacing cavity have square cross-sectional outer contours.

7. The stone retrieval mechanism of claim 5, wherein the partially exposed section of the basket sheath is provided with a soft sleeve.

8. The stone removal mechanism of claim 2, wherein the connecting tube is a square tube and the spacing cavity is a square cavity.

9. The stone removing mechanism as claimed in claim 7, wherein the rotating disc is provided with a pressing concave surface which is convenient for pulling the finger belly.

10. The stone removal mechanism of claim 9, wherein the proximal side of the rotatable disk defines a circumferentially extending rotational tab, the distal recess of the inner wall of the handle defining a circumferential groove, the rotational tab rotatably engaging the circumferential groove to effect rotatable connection of the handle to the rotatable disk.