CN112842465A - Flower-shaped stone-taking net basket for flexible endoscope - Google Patents

Abstract

The invention provides a flower-shaped stone-taking net basket for a soft endoscope, which is characterized by comprising the following components: get the stone handle, get the last wave wire casing that has of stone handle, the push rod, metal shrapnel has in the push rod, metal shrapnel's both ends card is in the wave wire casing, prevent rolling over the protective sheath, install the front end before getting the stone handle, the sheath pipe, one end fixed mounting is in preventing rolling over the protective sheath, basket steel wire group, basket steel wire including three or four petal form ranges, decide the slider, set up in the tube sheath, decide three groups or four groups diplopore of evenly distributed on the slider, diplopore supplies basket steel wire to pass, the retaining ring, set up in the tube sheath, be located the preceding position of deciding the slider, control wire rope, one end and push rod fixed connection, the terminal fixed connection of the other end and basket steel wire group. According to the flower-shaped stone-taking basket for the flexible endoscope, the handle can firmly fix the stone after the stone is grabbed, and the grabbed stone can not fall off due to the sliding of the handle.

Description

Flower-shaped stone-taking net basket for flexible endoscope

Technical Field

The invention relates to a flower-shaped stone-taking net basket for a flexible endoscope, and belongs to the field of medical instruments.

Background

The handle that stone basket used in the market at present can only pass through axial motion push-and-pull handle for the basket head is opened and is closed, but can't lock. When the calculus is slippery and hard, the head of the basket can not fix the calculus, so that the calculus falls off. And because of the problem of the structure of the stone-taking basket, the basket head is formed by intersecting and combining a plurality of stainless steel wires, so that the diameter is large, and the stone-taking basket cannot be used in a urinary system.

Disclosure of Invention

The invention aims to provide a flower-shaped stone-taking net basket for a flexible endoscope, which solves the problems.

The invention adopts the following technical scheme:

the invention provides a flower-shaped stone-taking net basket for a soft endoscope, which is characterized by comprising the following components:

get the stone handle, get the last wave wire casing that has of stone handle, the push rod, metal shrapnel has in the push rod, the front end card of metal shrapnel is in the wave wire casing, the anti-roll over protective sleeve, install the front end before getting the stone handle, the sheath pipe, one end fixed mounting is in the anti-roll over protective sleeve, basket steel wire group, basket steel wire including three or four petal form ranges, decide the slider, set up in the tube sheath, decide three groups or four groups diplopore of evenly distributed on the slider, diplopore supplies basket steel wire to pass, the retaining ring, set up in the tube sheath, be located the position in front of the slider, control wire rope, one end and push rod fixed connection, the terminal fixed connection of the other end and basket steel wire group.

Further, the flower-shaped stone-taking net basket for the soft endoscope also has the following characteristics: the metal elastic sheet is V-shaped, and two ends of the metal elastic sheet are respectively clamped in the front wavy wire grooves and the rear wavy wire grooves.

Further, the flower-shaped stone-taking net basket for the soft endoscope also has the following characteristics: the basket steel wires are preformed.

Further, the flower-shaped stone-taking net basket for the soft endoscope also has the following characteristics: the device also comprises a connecting pipe which is used for connecting the control steel wire rope and the basket steel wire.

Further, the flower-shaped stone-taking net basket for the soft endoscope also has the following characteristics: the sheath tube is matched with the endoscope channel.

Further, the flower-shaped stone-taking net basket for the soft endoscope also has the following characteristics: the shape and size of the circular arc expansion of the basket steel wire are controlled by the mutual distance among the connecting pipe, the fixed sliding block, the retainer ring and the head of the sheath pipe and the pre-forming of the steel wire.

Further, the flower-shaped stone-taking net basket for the soft endoscope also has the following characteristics: three groups or four groups of double holes are uniformly distributed on the fixed sliding block, one hole of each group of double holes is used for fixing one end of one steel wire, and the other hole is used for the tail part of the other steel wire to pass through.

The invention has the beneficial effects that: according to the flower-shaped stone-taking basket for the flexible endoscope, the handle can firmly fix the stone after the stone is grabbed, and the grabbed stone cannot fall off due to the sliding of the handle.

The flower-shaped basket steel wire group of the flower-shaped stone-taking basket for the flexible endoscope can present three or four petals when being opened, and is particularly suitable for being matched with the endoscope to grab stones with various shapes in the urinary system.

Drawings

Fig. 1 is a schematic overall structure diagram of a flower-shaped stone-taking basket for a soft endoscope.

Fig. 2 is a schematic view showing a flower shape of the basket wire assembly after being opened.

Fig. 3 is a schematic view of the internal structure of the sheath.

Fig. 4 is a back structure diagram of the push rod.

Fig. 5 is a schematic diagram of the distribution mode of double-hole persons on the fixed sliding block.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1 to 4, the flower-shaped calculus removing basket for a soft endoscope according to the present embodiment includes: the stone taking handle 1 is provided with awave line groove 13.

Thepush rod 11 is provided with a metalelastic sheet 12 in thepush rod 11, and the front end of the metalelastic sheet 12 is clamped in the wavy wire groove.

The anti-foldingprotective sleeve 2 is arranged at the front end of the stone taking handle 1.

One end of thesheath tube 3 is fixedly arranged with the front end of the stone taking handle 1 through theanti-folding sheath tube 2, and thesheath tube 3 is matched with an endoscope clamp channel.

As shown in fig. 2, thebasket wire group 4 in the present embodiment includes threebasket wires 41 arranged in a petal shape. In other embodiments, four petal-shaped arranged basket wires may be used as required. The basket wires are preformed to further assist in forming the predetermined shape of thebasket wire assembly 4 after opening.

The shape and size of the three groups of circular arcs are controlled by the mutual distance among the four parts of the connecting pipe, the fixed slide block, the retainer ring and the front end opening of thesheath pipe 3 and the preforming of the steel wire.

As shown in fig. 3, the fixed slidingblocks 7 are arranged in thetube sheath 3, and three or four groups of double holes are uniformly distributed on the fixedsliding blocks 7. As shown in fig. 5, three sets of double holes are uniformly distributed in the present embodiment, wherein one hole fixes one end of one steel wire, and the other hole is used for the tail of the other steel wire to pass through, and the two holes correspond to the three sets respectively. In fig. 5, the hole from which the arrow starts is a hole for fixing a steel wire, the hole to which the arrow points is a hole through which the steel wire passes, and the steel wire passes through the hole and then is fixedly connected with the rear control steel wire rope 5.

And theretaining ring 8 is arranged in the pipe sheath and is positioned in front of the fixed sliding block.

Control wire rope 5, one end and push rod fixed connection, the other end passes through the steel wire end fixed connection oftakeover 6 and basketsteel silk group 4, specifically, the one end of every basket steel wire is fixed in one of a set of diplopore of fixed slidingblock 7, and the other end of every basket steel wire passes behind a hole and fixes on controlling wire rope 5.

As shown in fig. 4, in the present embodiment, the metal elastic sheet is fixedly installed in thepush rod 11, and the body of thepush rod 11 is slidably installed in the wavy line groove. The metal elastic sheet is a whole piece and is in a V shape, and two sharp ends are respectively clamped on the teeth of the front and rearwavy wire grooves 13. Thereby preventing thebasket wire group 4 at the front end from loosening forwards after the calculus is sleeved by the basket wire group.

Because the metal shrapnel has elasticity, consequently can allowpush rod 11 to promote back and forth inwave wire casing 13, simultaneously because the elasticity of metal shrapnel, behind the calculus is entangled tobasket wire group 4 at the front end,push rod 11 can be pulled and is controlled wire rope 5 and thebasket wire group 4 at the front end forbasket wire group 4 can not loosen owing to some resistance effect of the process of taking out.

When the device is used, thepush rod 11 on the handle is pushed forwards to drive the control steel wire rope 5 to move thebasket steel wire 4 and thefixed slide block 7 forwards synchronously. After the fixed slidingblock 7 touches theretainer ring 8, part of the basket steel wires extend out of thetube sheath 3, the basket steel wire end fixed on the fixed slidingblock 7 does not move any more, thepush rod 11 continues to be pushed, the unfixed basket steel wire end penetrating in the fixed slidingblock 7 continues to move forwards, the steel wires extending out of thetube sheath 3 are unfolded in a circular arc shape under the action of elasticity, and the three groups of steel wires are opened in three circular arcs to form a petal shape. In other embodiments, when four groups of steel wires are used, the working principle is the same as that of the three groups of steel wires, and the description is omitted here. Finally, theadapter tube 6 is moved to thefixed slide block 7 to stop. The calculus can be grabbed by using the basket steel wire group.

Claims (7)

1. The utility model provides a stone basket is got to flower shape for soft scope which characterized in that includes:

a stone taking handle which is provided with a wave wire groove,

a push rod, wherein the push rod is provided with a metal elastic sheet, the front end of the metal elastic sheet is clamped in the wavy wire slot,

an anti-folding protective sleeve is arranged at the front end of the stone taking handle,

one end of the sheath tube is fixedly arranged at the front end of the stone taking handle through the anti-folding sheath tube,

the basket steel wire group comprises three or four basket steel wires arranged in a petal shape,

the fixed sliding block is arranged in the tube sheath, three groups or four groups of double holes are uniformly distributed on the fixed sliding block, the double holes are used for the basket steel wires to pass through,

a retainer ring arranged in the tube sheath and positioned in front of the fixed slide block,

and one end of the control steel wire rope is fixedly connected with the push rod, and the other end of the control steel wire rope is fixedly connected with the tail end of the basket steel wire group.

2. The flower-shaped stone-taking net basket for the soft endoscope as recited in claim 1, wherein:

the metal elastic sheet is V-shaped, and two ends of the metal elastic sheet are respectively clamped in the front wavy wire grooves and the rear wavy wire grooves.

3. The flower-shaped stone-taking net basket for the soft endoscope as recited in claim 1, wherein:

the basket steel wires are preformed.

4. The flower-shaped stone-taking net basket for the soft endoscope as recited in claim 1, wherein:

the device also comprises a connecting pipe which is used for connecting the control steel wire rope and the basket steel wire.

5. The flower-shaped stone-taking net basket for the soft endoscope as recited in claim 1, wherein:

the sheath pipe is matched with the endoscope clamping passage.

6. The flower-shaped stone-taking net basket for the soft endoscope as recited in claim 1, wherein:

the shape and size of the circular arc expansion of the basket steel wire are controlled by the mutual distance among the connecting pipe, the fixed slide block, the retainer ring and the head part of the sheath pipe and the preforming of the steel wire.

7. The flower-shaped stone-taking net basket for the soft endoscope as recited in claim 1, wherein:

three groups or four groups of double holes are uniformly distributed on the fixed sliding block, one hole of each group of double holes is used for fixing one end of one steel wire, and the other hole is used for the tail part of the other steel wire to pass through.

Images