CN217366001U - Stone-taking net basket - Google Patents

Abstract

The utility model discloses a stone-taking net basket, which comprises an outer sleeve, a stretching sleeve and a net basket head part, wherein one end of the stretching sleeve is connected with the outer sleeve, a net basket guide wire is arranged inside the stretching sleeve, the net basket head part is a net basket structure which is folded and formed by a plurality of circumferentially arranged net basket wires, the folded end of the net basket head part is connected with the net basket guide wire, and a switch button connected with the net basket guide wire is arranged on the outer sleeve; the net basket comprises a net basket head, a sleeve pipe is arranged in the net basket head, a plurality of guide grooves which correspond to the net basket wires of the net basket head one to one are formed in the inner side wall of the end portion of the net basket, the guide grooves extend towards the inner side of the end portion of the sleeve pipe is provided with the end portion of the net basket and the end portion of the net basket and the net basket. The utility model discloses a calculus extraction basket mainly is applied to the choledochoscope, and its basket all can guarantee the stability of structure when opening and drawing in, simultaneously, can be firm entangle calculus or foreign matter, and calculus extraction is efficient.

Description

Stone-taking net basket

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a calculus removal basket.

Background

At present, when treating hepatobiliary calculus, the choledochoscope calculus removing technology is basically needed, however, after calculus or foreign matter is removed, the removed calculus or foreign matter is easy to drop, and in addition, after the basket is folded, the basket is deformed in the rotating direction due to the fact that the basket line is located in a narrow space in the sleeve pipe, the basket line is easy to clamp mutually, so that the basket cannot be opened, and the use is affected.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model provides a calculus-taking basket mainly is applied to the choledochoscope, and its basket all can guarantee the stability of structure when opening and drawing in, simultaneously, can be firm entangle calculus or foreign matter, it is efficient to get the calculus.

The technical scheme of the utility model as follows:

a stone-taking basket comprises an outer sleeve, an extension sleeve and a basket head, wherein one end of the extension sleeve is connected with the outer sleeve, the other end of the outer sleeve is provided with a handle part, a basket guide wire is arranged inside the extension sleeve, the basket head is of a furled basket structure consisting of a plurality of circumferentially arranged basket wires, the furled end of the basket head is connected with the basket guide wire, the outer sleeve is provided with a switch button connected with the basket guide wire, and the opening or furling state of the basket head is controlled by pushing the switch button forwards or backwards; the net basket comprises a net basket head, a sleeve pipe is arranged in the net basket head, a plurality of guide grooves which correspond to the net basket wires of the net basket head one to one are formed in the inner side wall of the end portion of the net basket, the guide grooves extend towards the inner side of the end portion of the sleeve pipe is provided with the end portion of the net basket and the end portion of the net basket and the net basket.

The working principle of the technical scheme is as follows:

the utility model discloses set up the guide way on stretching into sheathed tube inner wall, every basket silk of basket head is in a guide way respectively, resume tension card through self in the guide way, the front end spiral of guide way coils on stretching into sheathed tube inner wall, when drawing in the basket head in, the basket silk of basket head draws in inwards along the guide way, at first have a rotatory action, can be better snatch calculus or foreign matter, prevent that calculus or foreign matter from droing, furthermore, because every basket silk is restricted in a guide way respectively, during the draw-in state, contact between the reducible basket silk, prevent to block each other between the basket silk, the condition that leads to the basket head not to open takes place.

In further technical scheme, the basket head still includes the stock ring, a plurality of the one end and the stock ring of basket silk are connected, and the other end draws in and collects the back and is connected with the basket seal wire, stretch into and be equipped with the holding tank that can hold the stock ring on the sheathed tube terminal surface, when the basket head draws in, the stock ring inlays in the sheathed tube mouth of pipe terminal surface department of stretching into, and when the basket head was in the open mode, the structural stability of basket can be kept in setting up of stock ring, prevents that the basket structure from warping.

In a further technical scheme, the groove wall of the guide groove protrudes out of the inner wall of the sleeve, so that the basket wire can be further limited in the guide groove.

In a further technical scheme, the outer wall of the extension sleeve is provided with scale marks, so that the extension length of the extension sleeve can be conveniently observed.

In a further technical scheme, the basket wire is made of a memory alloy material, and can recover and keep a stable structural shape after being deformed.

In a further technical scheme, the end part of the head part of the net basket drawn in by the extending sleeve is a fillet end, and the damage to a patient can be reduced in the process of extending the extending sleeve into a human body.

The utility model has the advantages that:

1. the utility model discloses a get stone basket sets up the guide way that the front end spiral extends on stretching into the sheathed tube inner wall, when drawing in the basket head, the basket silk of basket head draws in inwards along the guide way, has a rotatory action at first, can be better snatch calculus or foreign matter, prevents that calculus or foreign matter from droing;

2. the utility model discloses a stone-taking basket, each basket wire is limited in a guide groove, when in a furled state, the contact between the basket wires can be reduced, the basket wires are prevented from being mutually clamped, and the condition that the basket head can not be opened is avoided;

3. the utility model discloses a stone-taking net basket is provided with a shaping ring on the head part of the net basket, when the head part of the net basket is in an opening state, the setting ring can keep the structural stability of the net basket and prevent the structural deformation of the net basket;

4. the scale marks are arranged on the outer wall of the extension sleeve, so that the extension length of the extension sleeve can be conveniently observed;

5. the end part extending into the sleeve is designed to be a round-angle end, so that the damage to a patient can be reduced in the process of extending into the sleeve into a human body.

Drawings

Fig. 1 is a schematic structural view of a stone-taking basket according to an embodiment of the present invention;

FIG. 2 is a cross-sectional end view of an embodiment of the present invention shown extending into a casing;

fig. 3 is a schematic structural view of a basket head according to an embodiment of the present invention.

Description of reference numerals:

10. an outer sleeve; 11. a switch button; 20. extending into the sleeve; 21. scale marks; 22. a guide groove; 23. accommodating grooves; 30. a basket head; 31. basket net wires; 32. shaping rings; 40. a handle portion.

Detailed Description

The embodiments of the present invention will be further explained with reference to the drawings.

Example (b):

a kind of stone-taking basket, as shown in figure 1, including the outer thimble 10, stretch into thimble 20 and basket head 30, stretch into one end of thimble 20 and connect with outer thimble 10, another end of the outer thimble 10 has handle 40, stretch into the inside of thimble 20 and have basket guide wires, the basket head 30 is the basket structure that is folded and formed by several basket wires 31 that are arranged circumferentially, the basket wire 31 is made of memory alloy material, still recoverable, keep the stable structural shape after deforming, the folding end of the basket head 30 is connected with basket guide wire, there is switch button 11 connected with basket guide wire on the outer thimble 10, through pushing the switch button 11 forward or backward, to control the open or folding state of the basket head 30; as shown in fig. 2, a plurality of guide grooves 22 corresponding to the basket wires 31 of the basket head 30 one to one are formed in the inner side wall of the end portion of the retractable sleeve 20 that retracts the basket head 30, the guide grooves 22 extend from the end surface of the retractable sleeve 20 to the inside thereof, and the groove walls of the guide grooves 22 protrude out of the inner wall of the retractable sleeve 20, so that the basket wires 31 can be further guaranteed to be limited in the guide grooves 22, and the front end of the guide grooves 22 is spiral.

The utility model discloses set up guide way 22 on stretching into sleeve pipe 20's inner wall, every basket silk 31 of basket head 30 is in a guide way 22 respectively, resume the tension card through self in guide way 22, the front end spiral of guide way 22 coils on stretching into sleeve pipe 20's inner wall, when drawing in basket head 30 in, basket silk 31 of basket head 30 inwards draws in along guide way 22, at first have a rotatory action, can be better snatch calculus or foreign matter, prevent that calculus or foreign matter from droing, furthermore, because every basket silk 31 is restricted in a guide way 22 respectively, during the draw in state, contact between the reducible basket silk 31, prevent blocking each other between the basket silk 31, the condition that leads to basket head 30 not to open takes place.

In another embodiment, as shown in fig. 3, the basket head 30 further includes a sizing ring 32, one end of each of the basket wires 31 is connected to the sizing ring 32, the other end of each of the basket wires 31 is connected to a basket guide wire after being collected, an accommodating groove 23 capable of accommodating the sizing ring 32 is formed in the end surface of the extending sleeve 20, when the basket head 30 is collected, the sizing ring 32 is embedded in the end surface of the nozzle of the extending sleeve 20, and when the basket head 30 is in an open state, the sizing ring 32 is arranged to maintain the structural stability of the basket and prevent the structural deformation of the basket.

In another embodiment, as shown in fig. 1, the outer wall of the extension sleeve 20 is provided with a scale mark 21 to facilitate observation of the extension length of the extension sleeve 20.

In another embodiment, as shown in fig. 2, the end of the sleeve 20 that folds the basket head 30 is a rounded end, which reduces the trauma to the patient during the insertion of the sleeve 20 into the body.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention.

Claims (6)

1. A stone-taking basket comprises an outer sleeve, a stretching sleeve and a basket head, and is characterized in that one end of the stretching sleeve is connected with the outer sleeve, a basket guide wire is arranged inside the stretching sleeve, the basket head is of a furled basket structure consisting of a plurality of circumferentially arranged basket wires, the furled end of the basket head is connected with the basket guide wire, and a switch button connected with the basket guide wire is arranged on the outer sleeve; the net basket comprises a net basket head, a sleeve pipe is arranged in the net basket head, a plurality of guide grooves which correspond to the net basket wires of the net basket head one to one are formed in the inner side wall of the end portion of the net basket, the guide grooves extend towards the inner side of the end portion of the sleeve pipe is provided with the end portion of the net basket and the end portion of the net basket and the net basket.

2. The stone-removing basket as recited in claim 1, wherein said basket head further comprises a sizing ring, a plurality of said basket wires are connected to said sizing ring at one end and to said basket guide wire at the other end, and said end surface of said sleeve is provided with a receiving groove for receiving said sizing ring.

3. The stone extraction basket of claim 1, wherein the walls of the guide slots project from the inner wall of the casing.

4. The stone extraction basket of claim 1 wherein the outer wall of the access sleeve is provided with graduated markings.

5. The stone extraction basket of claim 1, wherein the basket wires are a memory alloy material.

6. The stone extraction basket of claim 1 wherein the end of the run-in sleeve converging basket head is a rounded end.

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