CN202699229U

CN202699229U - Calculus removing reticular basket

Info

Publication number: CN202699229U
Application number: CN 201220250694
Authority: CN
Inventors: 张婵娟
Original assignee: HANGZHOU AGS MEDICAL TECHNOLOGY Co Ltd
Current assignee: Anrei Medical HZ Co Ltd
Priority date: 2012-05-28
Filing date: 2012-05-28
Publication date: 2013-01-30
Anticipated expiration: 2022-05-28

Abstract

A calculus removing reticular basket comprises a push-pull handle, an injection handle, a sheath tube and a reticular basket. The reticular basket comprises reticular basket wires, an end cap, an intermediate connecting tube and a traction mechanism, wherein the head ends of the reticular basket wires are fixedly bundled by the end cap, the rear ends of the reticular basket wires are fixedly bundled by the intermediate connecting tube, and the traction mechanism is connected with the push-pull handle to drive the reticular basket to move back and forth. The end cap is provided with a wire guide cavity allowing guide wires to penetrate through. The calculus removing reticular basket has the advantage of convenience in use since the guide wires do not need to penetrate through the sheath tube of the reticular basket.

Description

A kind of stone extraction basket

Technical field

This utility model relates to a kind of stone extraction basket.

Background technology

The incidence rate of calculus of bile duct accounts for 10% ~ 20% of world population, and increase with advancing age, the incidence rate of old man's cholelithiasis is about 23% ~ 45% more than 80 years old, and cholelithiasis can cause a series of complication, such as cholangitis, pancreatitis, obstructive jaundice etc., thereby general opinion should be got stone.Calculus of bile duct is the abdominal methods that adopt previously more.Development along with the therapeutic endoscopy technology, the progress of endoscopic technic, calculus of bile duct is used minimally-invasive treatment more and more, adopt endoscopic retrograde ERCP (endoscopic retrograde cholangio panecreatography, ERCP) go simultaneously sphincterotomy (endoscopic sphincterotomy, EST) lithotomy treatment calculus of bile duct is a kind of Minimally Invasive Surgery of practicality, and success rate is high.For the calculus of non-silt shape, adopt stone extraction basket to get stone more, be a kind of safe and effective, economic convenience, need be in hospital the therapeutic modality that misery is little, recovery is fast.

When stone extraction basket is expert at cystic duct cannula, when meeting not up time of intubate, during such as 12 rectal papilla diverticulum, often need to enter bile duct by the guiding of seal wire, need to use the stone extraction basket with the seal wire function this moment, this common on market class stone extraction basket mostly is double lumen, namely a chamber is that basket uses the chamber, one chamber is that seal wire uses the chamber, during clinical use, first tiny seal wire is inserted in the bile duct, another end of seal wire is trapped in outside the human body, this moment this end of seal wire is inserted in the guidewire lumen of sheath pipe of stone extraction basket, the sheath pipe of stone extraction basket is proceeded to bile duct along seal wire, finish the intubate action, such operation requirements guidewire length is very long, requirement adds active length in the body cavities more than or equal to the entire length of stone extraction basket, generally reach more than 4 meters, whole seal wire guide nearly 2 meters how long, need a little seal wire is clamp-oned in the guidewire lumen of stone extraction basket of medical personnel, closely spaced cooperation and long stroke cause whole bootup process frictional force excessive, guiding is effort relatively, comparatively loses time, in addition because seal wire is oversize, in importing the process of seal wire into, also need independent medical care personnel to hold up seal wire, avoid kiss the earth or other pollutant, generally, this process wastes time and energy, and medical personnel have complaint by chance.

The utility model content

For overcoming existing stone extraction basket when using seal wire, seal wire inserts in the sheath pipe, uses inconvenient shortcoming, and this utility model provides a kind of seal wire to need not to pass basket sheath pipe, stone extraction basket easy to use.

A kind of stone extraction basket, comprise drawing handle, injection handle, sheath pipe and basket, basket comprises the basket silk, the head end medicated cap that the head end bunchy of basket silk is fixing, the intermediate connection tube that the tail end bunchy of basket silk is fixing is with the draw-off mechanism that is connected drawing handle and seesaws with the drive basket;

It is characterized in that: the head end medicated cap is provided with the guidewire lumen that allows seal wire to pass.

Further, the head end medicated cap comprises that permission basket silk inserts basket chamber and the guidewire lumen in it, and the axis of guidewire lumen is parallel with the axis in basket chamber, and the basket silk is fixed in the basket intracavity; The basket silk forms the basket body.Thereby the basket chamber becomes a branch of head end with the basket silk to fix on the basket tow.

Further, the head end medicated cap comprises columniform body and the fixing connection tube of basket with netting on top silk, and the basket chamber is arranged on the connection tube; The side of body is provided with outward extending extension block, and guidewire lumen is located on the extension block.

Further, the end face of body is provided with positioning boss, and connection tube inserts in the positioning boss.

Technical conceive of the present utility model is: when using seal wire guiding stone extraction basket to insert digestive tract, first seal wire is inserted in patient's digestive tract.After the head end of seal wire arrived the precalculated position, in the guidewire lumen with the tail end insert head end cap of seal wire, basket was finished the intubate action in seal wire enters digestive tract.

In this utility model, seal wire need not to insert in the sheath pipe, and the guidewire lumen length on the head end medicated cap is short, and seal wire is the insert head end cap easily, and it is convenient that basket inserts along seal wire.

The utlity model has seal wire and need not to pass basket sheath pipe, advantage easy to use.

Description of drawings

Fig. 1 is the sketch map before the stone extraction basket seal wire guiding of the present utility model.

Fig. 2 is the sketch map in the stone extraction basket seal wire bootup process of the present utility model.

Fig. 3 is the structural representation of stone extraction basket of the present utility model.

Fig. 4 is the first head end medicated cap of stone extraction basket of the present utility model.

Fig. 5 is the second head end medicated cap of stone extraction basket of the present utility model.

The specific embodiment

With reference to Fig. 1-5, further specify this utility model:

A kind of stone extraction basket, comprise drawing handle 1, injection handle 2, sheath pipe 3 and basket, basket comprises basket silk 4, the head end medicated cap 5 that the head end bunchy of basket silk 4 is fixing, the intermediate connection tube that the tail end bunchy of basket silk 4 is fixing is with the draw-off mechanism that is connected drawing handle 1 and seesaws with the drive basket;

Head end medicated cap 5 is provided with the guidewire lumen 51 that allows seal wire 100 to pass.

Head end medicated cap 5 comprises basket chamber 52 and the guidewire lumen 51 that allows basket silk 4 to insert in it, and the axis of guidewire lumen 51 is parallel with the axis in basket chamber 52, and basket silk 4 is fixed in the basket chamber 52; 4 braidings of basket silk form the basket body.Thereby basket chamber 52 is restrainted into a branch of head end with basket silk 4 with basket silk 4 and is fixed.Basket silk 4 forms net bag-shaped through pre-stamped molding.

Head end medicated cap 5 comprises columniform body 5A and the fixing connection tube 5B of basket with netting on top silk, and basket chamber 52 is arranged on the connection tube 5B; The side of body 5A is provided with outward extending extension block 5C, and guidewire lumen 51 is located on the extension block 5C, as shown in Figure 4.Certainly, the end face of body 5A is provided with positioning boss, and connection tube 5B inserts in the positioning boss, as shown in Figure 5.

Intermediate connection tube connects pull rope, and pull rope is fixedly connected with the push-and-pull conduit, and push-and-pull conduit and drawing handle are fixed.

Technical conceive of the present utility model is: when using seal wire 100 guiding stone extraction baskets to insert digestive tract, first seal wire 100 is inserted in patient's digestive tract.After the head end 101 of seal wire 100 arrived precalculated positions, in the guidewire lumen 51 with the tail end 102 insert head end caps 5 of seal wire 100, basket entered in the digestive tract along seal wire 100, finishes the intubate action.

In this utility model, seal wire 100 need not to insert in the sheath pipe 3, and guidewire lumen 51 length on the head end medicated cap 5 are short, and seal wire 100 is insert head end cap 5 easily, and it is convenient that basket inserts along seal wire.

The described content of this description embodiment only is enumerating the way of realization of utility model design; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also reaches the equivalent technologies means that design can be expected according to this utility model in those skilled in the art.

Claims

1. stone extraction basket, comprise drawing handle, injection handle, sheath pipe and basket, basket comprises the basket silk, and the head end of basket silk is fixed into a branch of head end medicated cap, the tail end of basket silk is fixed into a branch of intermediate connection tube, with the draw-off mechanism that is connected drawing handle and seesaws to drive basket;

2. a kind of stone extraction basket as claimed in claim 1 is characterized in that: the head end medicated cap comprises and allows the basket silk to insert basket chamber and guidewire lumen in it, and the axis of guidewire lumen is parallel with the axis in basket chamber, and the basket silk is fixed in the basket intracavity; The basket silk forms the basket body.

3. a kind of stone extraction basket as claimed in claim 2, it is characterized in that: the head end medicated cap comprises columniform body, and body is provided with boss near the rear end face of basket, and the basket chamber is arranged on the boss; This side is provided with outward extending extension block, and guidewire lumen is located on the extension block.

4. a kind of stone extraction basket as claimed in claim 3, it is characterized in that: boss is comprised of two sections ladders.