CN110179524B

CN110179524B - Stone-taking basket with changeable basket wire number

Info

Publication number: CN110179524B
Application number: CN201910547488.2A
Authority: CN
Inventors: 黄建钊; 庄亮; 戴冶君
Original assignee: CHANGZHOU JIUHONG MEDICAL INSTRUMENT CO LTD
Current assignee: CHANGZHOU JIUHONG MEDICAL INSTRUMENT CO LTD
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2024-02-09
Anticipated expiration: 2039-06-24
Also published as: CN110179524A

Abstract

The invention relates to the technical field of medical appliances, in particular to a stone taking basket with a variable basket wire number, which is provided with a three-way pipe and a coil, wherein coils are sleeved on two adjacent basket wires or a plurality of continuous basket wires, and the basket wires of a basket assembly can be mutually combined or opened by controlling the forward and backward movement of the coils, so that the number of the basket wires of the basket assembly can be changed or switched, smaller stones can be sleeved, larger stones can also be sleeved, the stone taking basket is simple and reasonable in structure, low in production cost and convenient and quick to operate.

Description

Stone-taking basket with changeable basket wire number

Technical Field

The invention relates to the technical field of medical instruments, in particular to a stone removing basket with a variable basket wire number.

Background

The stone taking basket is widely applied to the treatment of the symptoms of stones in different operation fields such as urology surgery, biliary tract and the like, is a surgical instrument frequently used in the hard-lens gallbladder-protecting stone taking operation, and is required to be sleeved in the basket when small stones are taken out when being used, and then contracted to limit the stones in the basket and then taken out. The invention patent with publication number of CN 206995303U discloses a stone-taking basket, which can only be used for taking smaller stones, and larger stones cannot enter the basket. The invention patent with publication number of CN207755332U discloses an asymmetric stone-taking basket, which can take larger and smaller stones, but has complex structure and high production cost.

Disclosure of Invention

The invention aims to solve the technical problems that: the invention provides a stone-taking basket with variable basket wires, which aims to solve the technical problems that in the prior art, a stone-taking basket can only generally take smaller stones, larger stones cannot be taken, or simultaneously, the stone-taking basket capable of taking larger stones and smaller stones is complex in structure, high in cost and inconvenient to operate.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a stone-taking basket of variable basket silk number, includes basket subassembly, push wire drawing, outer tube, three-way pipe, guide head, core bar, sliding ring and cable, the guide head is fixed to be set up in the front end of basket subassembly, the end of basket subassembly is connected with the front end of push wire, the end and the sliding ring fixed connection of sliding ring, sliding sleeve dress is on the core bar, outer tube, core bar and three-way pipe all suit are on push wire drawing, the rear end and the three-way pipe front end fixed connection of outer tube, the rear end and the core bar fixed connection of three-way pipe, the side of three-way pipe still has the third mouth of pipe, the last many basket silk that has of basket subassembly, the cover is equipped with the coil on two adjacent basket silk or the many basket silk in succession, the total number of basket silk is m on the basket subassembly, m-n is not less than 2, coil and the front end fixed connection of cable run through outer tube and three-way pipe, the end of cable wears out the third mouth of pipe and is connected with operating handle.

Preferably, the total number of the basket wires on the basket assembly is 4, and coils are sleeved on two adjacent basket wires.

In order to facilitate drawing of the stay cable, a first pipe orifice of the three-way pipe is forwards, a second pipe orifice of the three-way pipe is backwards, and a third pipe orifice is backwards inclined.

Further, specifically, the included angle α between the central axis of the third nozzle and the horizontal line is 30 ° -70 °.

In order to facilitate guiding and protecting the push-pull wire and the inhaul cable, a protective sleeve is further arranged between the outer tube and the three-way tube, and the protective sleeve is sleeved on the push-pull wire and the inhaul cable.

In order to facilitate the operation of doctors, a slip ring locking mechanism is arranged on the slip ring.

In order to facilitate the operation of doctors, an operating handle locking mechanism is arranged on the operating handle.

The stone taking basket with the variable basket wire number has the advantages that through controlling the forward and backward movement of the coil, the basket wires of the basket assembly can be mutually combined or opened, so that the number of the basket wires of the basket assembly can be changed or switched, smaller stones can be sleeved, larger stones can be sleeved, the stone taking basket is simple and reasonable in structure, low in production cost and convenient and rapid to operate.

Drawings

The invention will be further described with reference to the drawings and examples.

FIG. 1 is a schematic view of the structure of the variable wire number stone removal basket of the present invention.

Fig. 2 is a schematic view of the structure of the variable wire number stone removal basket of the present invention for removing larger stones.

Fig. 3 is a schematic view of the structure of the variable wire number stone removal basket of the present invention for removing larger stones.

Fig. 4 is a view showing the structure of basket wires in the direction a in fig. 1.

Fig. 5 is a structural view of the basket wires of fig. 4 after being combined by a coil.

In the figure: 1. basket subassembly 2, operating handle, 3, outer tube, 4, three-way pipe, 41, third mouth of pipe, 5, guide head, 6, core bar, 7, slip ring, 8, coil, 9, cable, 10, sheath pipe, 11, basket silk, 12, great calculus, the arrow is the pulling direction of operating handle.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.

As shown in fig. 1, the stone removing basket with the variable basket wire number comprises a basket assembly 1, a push wire drawing, an outer tube 3, a three-way tube 4, a guide head 5, a core bar 6, a slip ring 7 and a pull rope 9, wherein the guide head 5 is fixedly arranged at the front end of the basket assembly 1, the tail end of the basket assembly 1 is connected with the front end of the push wire drawing, the tail end of the push wire drawing is fixedly connected with the slip ring 7, the slip ring 7 is slidably sleeved on the core bar 6, the outer tube 3, the core bar 6 and the three-way tube 4 are sleeved on the push wire drawing, the rear end of the outer tube 3 is fixedly connected with the front end of the three-way tube 4, the rear end of the three-way tube 4 is fixedly connected with the core bar 6, a third tube orifice 41 is further arranged on the side surface of the three-way tube 4, the first tube orifice of the three-way tube 4 faces forwards, the second tube orifice of the three-way tube 4 backwards, and the third tube orifice 41 backwards inclines. The angle alpha between the central axis of the third nozzle 41 and the horizontal is 30 deg. -70 deg.. The basket assembly 1 is provided with a plurality of basket wires 11, two adjacent basket wires 11 or a plurality of continuous basket wires 11 are sleeved with coils 8, the number of the continuous basket wires 11 is n, the total number of the basket wires on the basket assembly 1 is m, m-n is more than or equal to 2, the coils 8 are fixedly connected with the front ends of the stay ropes 9, the stay ropes 9 penetrate through the outer tube 3 and the three-way tube 4, and the tail ends of the stay ropes 9 penetrate out of the third tube orifice 41 to be connected with an operating handle 2. The slip ring 7 is provided with a slip ring locking mechanism. The operating handle 2 is provided with an operating handle locking mechanism.

In the embodiment, the total number of the basket wires on the basket assembly 1 is 4, and the coils 8 are sleeved on two adjacent basket wires 11. The angle α between the central axis of the third nozzle 41 and the horizontal is 45 °.

A protective sleeve 10 is also arranged between the outer tube 3 and the three-way tube 4, and the protective sleeve 10 is sleeved on the push-pull wire and the inhaul cable 9.

The working process comprises the following steps: in the operation process of taking out the larger stones, as shown in fig. 1-3, the operating handle 2 pulls the coil 8 backwards to the front end of the outer tube 3, at this time, the total number of basket wires 11 on the basket assembly 1 is 4, at this time, the position of the operating handle 2 is locked by the operating handle locking mechanism, and the smaller stones can be taken out by pushing and pulling the sliding ring 7. When the basket wires 11 on the basket assembly 1 are opened, the operation handle 2 pushes the stay rope 9 to advance, so that the coil 8 advances, two adjacent basket wires 11 are close to each other and are basically combined into one wire, the distance between the basket wires 11 is increased, larger stones 12 are conveniently taken out (as shown in fig. 2 and 5), finally, the operation handle 2 is pulled again, the basket is restored to 4 wires, the slip of the stones is prevented (as shown in fig. 3), and therefore the slip ring 7 is pulled, the stones are tightened, and the stones are taken out. The basket wires 11 can be switched between 4 and 3 wires by pushing and pulling the operating handle 2. In clinical use, when a larger stone 12 is encountered, the stone cannot enter the basket through the gaps due to the smaller gaps between the 4 basket wires 11 (as shown in fig. 1 and 4).

With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.

Claims

1. The utility model provides a stone basket is got to changeable basket silk number which characterized in that: including basket assembly (1), push-and-pull wire, outer tube (3), three-way pipe (4), guide head (5), core bar (6), sliding ring (7) and cable (9), guide head (5) are fixed to be set up in the front end of basket assembly (1), the end of basket assembly (1) is connected with the front end of push-and-pull wire, the end and the sliding ring (7) fixed connection of push-and-pull wire, sliding ring (7) slip suit is on core bar (6), outer tube (3), core bar (6) and three-way pipe (4) all suit are on push-and-pull wire, the rear end of outer tube (3) and three-way pipe (4) front end fixed connection, the rear end of three-way pipe (4) and core bar (6) fixed connection, the side of three-way pipe (4) still has third mouth (41), the cover is equipped with coil (8) on basket assembly (1), the quantity of continuous many basket (11) is n, the total number of wire (1) is more than or equal to the coil (8), the total number of wire (3) is more than or equal to the total number of wire (3) and the cable (9), the tail end of the inhaul cable (9) penetrates out of the third pipe orifice (41) and is connected with an operating handle (2).

2. The variable wire count stone removal basket of claim 1, wherein: the total number of the basket wires on the basket assembly (1) is 4, and the coils (8) are sleeved on two adjacent basket wires (11).

3. The variable wire count stone removal basket of claim 1, wherein: the first pipe orifice of the three-way pipe (4) is forward, the second pipe orifice of the three-way pipe (4) is backward, and the third pipe orifice (41) is backward inclined.

4. A variable wire count stone removal basket as in claim 3 wherein: the included angle alpha between the central axis of the third pipe orifice (41) and the horizontal line is 30-70 degrees.

5. The variable wire count stone removal basket of claim 1, wherein: a protective sleeve (10) is further arranged between the outer tube (3) and the three-way tube (4), and the protective sleeve (10) is sleeved on the push-pull wire and the inhaul cable (9).

6. The variable wire count stone removal basket of claim 1, wherein: and a slip ring locking mechanism is arranged on the slip ring (7).

7. The variable wire count stone removal basket of claim 1, wherein: an operating handle locking mechanism is arranged on the operating handle (2).