CN213641090U

CN213641090U - Umbrella-shaped biliary tract stone grabbing and dragging balloon integrated device

Info

Publication number: CN213641090U
Application number: CN202021396145.5U
Authority: CN
Inventors: 肖斌; 陈国胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-07-09
Anticipated expiration: 2030-07-15

Abstract

The utility model provides a biliary tract umbrella type grabs stone and drags integrative device of stone sacculus, including outer tube and inner tube, the outer tube tail end is connected with the outer tube handle, run through to have a thread guide chamber and annotate the liquid chamber in the inner tube, the inner tube tail end is connected with the inner tube handle, the inner tube is connected with thread guide chamber and thread guide respectively through the inner tube handle, will annotate the liquid chamber and be connected with annotating the liquid pipe, thread guide pipe tail end has the thread guide hole, annotate the liquid pipe tail end and have annotate the liquid hole, still open the gas injection chamber in the inner tube, the stone taking sacculus has been overcoat on the outer wall of inner tube front end, the stone taking sacculus is communicated with gas injection chamber pipeline, the inner tube passes through the; an umbrella-shaped claw which can grab the calculus is fixed on the circumferential outer wall of the inner tube corresponding to the rear side of the calculus removing saccule above sea. The utility model has the advantages of reasonable design, effectively solved ERCP and got the stone in-process, the calculus is difficult to the set and gets, set and get the position of back easy slippage, the difficult stone of getting to kettle belly etc. realizes easily grabbing the stone and utilizes the function of getting the stone sacculus clearance biliary tract.

Description

Umbrella-shaped biliary tract stone grabbing and dragging balloon integrated device

Technical Field

The utility model relates to the technical field of medical equipment, in particular to endoscope equipment, and particularly relates to an umbrella-shaped biliary tract stone grabbing and dragging integrated balloon device.

Background

The Endoscopic Retrograde Cholangiopancreatography (ERCP) was born in the later 60 s, and doctors inserted a duodenoscope into the descending part of the duodenum to find the duodenal papilla, inserted a contrast catheter into the biopsy channel to the papilla opening, and imaged by x-ray after injecting a contrast agent to display the cholangiopancreatography. The first report in 1968 shows that the cholangiopancreatography can be successfully used for diagnosing choledocholithiasis, benign and malignant obstruction of biliary tract, pancreatic occupation and other diseases of the cholangiolithiasis. The ERCP can be used for placing a nasal biliary drainage tube (ENBD) under an endoscope to treat acute suppurative obstructive cholangitis, bile duct stent drainage, choledocholithiasis, etc.

At present, the conventional ERCP biliary calculus removal is carried out by using a calculus removal basket, a calculus removal balloon and two instruments. The shapes of the stone-taking net baskets are various, but the basic structures of the baskets cannot be separated, so that due to individual differences of biliary tract structures, changes of biliary tract structures and other conditions, some biliary tract stones need to be collected for many times, and some patients cannot be successfully collected after repeated attempts.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to overcome the deficiency of the prior art, the utility model provides a structural design is reasonable, gets the stone in-process at ERCP, can effectively overlap and get the stone, overlaps and gets the difficult slippage of back stone, to the difficult position of getting the stone such as kettle abdomen simultaneously, can easily grab a biliary tract umbrella type that stone grabbed drags stone sacculus integrative device of stone.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a biliary tract umbrella type grabs stone and drags integrative device of stone sacculus, includes outer tube and run-through connection at the intraductal inner tube of outer tube, and outer tube end connection has an outer tube handle, the inner tube in run-through have a thread guide chamber and annotate the liquid chamber, the inner tube end connection have an inner tube handle, the inner tube through the inner tube handle respectively with thread guide chamber and thread guide union coupling, will annotate the liquid chamber and annotate the liquid union coupling, thread guide pipe tail end have a thread guide hole, annotate the liquid pipe tail end and have annotate the liquid hole, the inner tube in still opened the gas injection chamber, the inner tube front end outer wall on the overcoat have a stone extraction sacculus, stone extraction sacculus and gas injection chamber pipeline intercommunication, the inner tube through the inner tube handle with the gas injection chamber with gas injection union coupling, the gas injection; an umbrella-shaped claw which can grab the calculus is fixed on the circumferential outer wall of the inner tube corresponding to the rear side of the calculus removing saccule above sea.

In the above scheme, will get the stone sacculus ingeniously and get on the stone basket is integrated to same device, contrast medium and other medicaments are injected into to the accessible, get the calculus through umbrella type claw cover, and aerify getting the stone sacculus according to the demand, the stone sacculus of getting after aerifing can play effectual clearance function to the biliary tract, get the calculus and carry the calculus to take out when in-process calculus slippage at umbrella type claw cover, the stone sacculus of getting after aerifing can block up at the calculus front end, and at the backward recovery in-process, carry and promote the calculus in step, effectively clear up out the biliary tract with the calculus.

Preferably, the umbrella-shaped claw comprises a plurality of claw bodies, the claw bodies are in claw-shaped structures which are gradually opened relative to the outer wall of the inner pipe from front to back, and the plurality of claw bodies surround the inner pipe to form an umbrella-shaped structure; the claw body from the past to the back including the hard section and the soft section that connect gradually, hard section front end is fixed with inner tube outer wall, the claw body open for inner tube outer wall from hard section to soft section tail end gradually, the soft or hard degree of soft section be greater than hard section. The design of the claw with hard front section and soft rear section can effectively prevent the head of the claw from damaging the biliary tract when the umbrella-shaped claw grabs the stone backwards.

In order to further avoid the damage of the biliary tract caused by the claw head during stone grabbing, the tail end of the soft segment is fixed with a round head, and a gap for sleeving the stone is arranged between the round head and the outer wall of the inner tube.

In order to further avoid the damage of the biliary tract caused by the claw head during stone grabbing, the tail end of the soft segment can also be made of soft materials.

Preferably, the silk guide chamber be located inner tube central point and put, notes liquid chamber and gas injection chamber then the symmetry divide establish in silk guide chamber both sides.

The beneficial effects of the utility model are that, the utility model provides a pair of biliary tract umbrella type is grabbed stone and is dragged integrative device of stone sacculus, structural design is reasonable, has effectively solved ERCP and has got the stone in-process, and the stone is difficult to the set and gets, set and get back easy slippage, to the difficult position of getting the stone such as kettle belly, realizes easily grabbing the stone and utilizes the function of getting stone sacculus clearance biliary tract.

Drawings

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

Fig. 1 is a schematic structural diagram of the preferred embodiment of the present invention.

Fig. 2 is the structure diagram of the utility model with the stone-taking saccule and the umbrella-shaped claw extending out of the outer tube according to the best embodiment.

Fig. 3 is a cross-sectional view a-a of fig. 1.

In the figure 1, a stone removal balloon 2, an umbrella-shaped claw 3, an outer tube 4, an inner tube 5, an outer tube handle 6, an inner tube handle 7, a liquid injection hole 8, a thread guide hole 9, a gas injection hole 10, a hard section 11, a soft section 12, a round head 13, a liquid injection cavity 14, a thread guide cavity 15 and a gas injection cavity.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

Fig. 1 to 3 show an umbrella-shaped stone-grabbing and stone-dragging balloon integrated device for biliary tract, which is a preferred embodiment of the present invention. The device comprises an outer tube 3 and an inner tube 4 which is connected in the outer tube 3 in a penetrating way, and the tail end of the outer tube 3 is connected with an outer tube handle 5. Run through to open in inner tube 4 and have seal wire chamber 14 and annotate

liquid chamber

13, 4 trailing end connection of inner tube have inner tube handle 6, inner tube 4 be connected with seal wire chamber 14 and seal wire pipe, will annotate liquid chamber 13 and annotate the liquid pipe respectively through inner tube handle 6 and be connected, seal wire pipe tail end guide wire hole 8 has, annotate liquid pipe tail end notes liquid hole 7 has.

Still open in the inner tube 4 and annotate the gas cavity 15, the outer wall of inner tube 4 front end go up the overcoat and have got stone sacculus 1, get stone sacculus 1 and gas injection chamber 15 pipeline intercommunication, inner tube 4 through inner tube handle 6 with gas injection chamber 15 and gas injection union coupling, the gas injection pipe tail end has gas injection hole 9. The inner tube adopts a multi-cavity design, and when the chambers are distributed, the guide wire cavity 14 can be arranged at the central position of the inner tube 4, so that the positioning and the guiding of the guide wire are convenient. The infusion chamber 13 and the air injection chamber 15 are symmetrically arranged on two sides of the guide wire chamber 14.

An umbrella-shaped claw 2 which can grab the calculus is fixed on the circumferential outer wall of the inner tube 4 corresponding to the rear side of the calculus taking saccule 1. The umbrella-shaped claw 2 comprises a plurality of claw bodies, the claw bodies are in claw-shaped structures which are gradually opened relative to the outer wall of the inner tube 4 from front to back, and the plurality of claw bodies surround the inner tube 4 to form an umbrella-shaped structure; the claw body from the past to the back including hard section 10 and soft section 11 that connect gradually, hard section 10 front end is fixed with inner tube 4 outer wall, the claw body open for inner tube 4 outer wall from hard section 10 to soft section 11 tail end gradually, soft or hard degree of soft section 11 be greater than hard section 10. The claw-shaped design with hard front section and soft rear section can effectively prevent the head of the claw from damaging the biliary tract when the umbrella-shaped claw 2 grabs the stone backwards.

In practical design, in order to further avoid the injury of the biliary tract caused by the claw head during stone grabbing, the tail end of the soft segment 11 can be designed by a round head 12 or made of soft materials. A gap for the stone to be sleeved is arranged between the round head 12 and the outer wall of the inner tube 4.

The umbrella type of biliary tract of such design grabs stone and drags integrative device of stone sacculus will get stone sacculus 1 and get on the stone basket is integrated to same device, has effectively solved ERCP and has got the stone in-process, and the stone is difficult to the suit and gets, the suit is got the back and is easily slipped, to the difficult position of getting the stone of kettle belly etc. the realization is light to grab the stone and utilizes the function of getting 1 clearance biliary tract of stone sacculus.

The device adopts a multi-cavity design, and the inner tube handle 6 is a multi-cavity handle. In use, the liquid injection device can be connected with the liquid injection hole 7 through the inner tube handle 6, so that the contrast medium and other medicaments can be conveniently injected inwards through the liquid injection cavity 13. The guide wire hole 8 is used for the guide wire to penetrate and position. The umbrella-shaped claw 2 and the calculus removing sacculus are sleeved inside by the outer tube 3 before entering the forceps channel hole, and the outer tube 3 and the inner tube 4 are controlled to generate relative displacement through the outer tube handle 5 and extend out of the outer tube 3.

In the process of stone removal, the umbrella-shaped claws 2 or the stone removal sacculus 1 can be selected as required to remove stones. When the calculus is removed through the calculus removing balloon 1, the inflation and deflation of the calculus removing balloon 1 are controlled through the air injection hole 9. When the umbrella-shaped claws 2 are used for fetching calculus, whether the calculus fetching saccule 1 is used or not can be synchronously selected according to requirements. In the ordinary stone taking occasion, when the stone taking saccule 1 is not needed, the stone taking saccule 1 is not inflated, the umbrella-shaped claws 2 extend out along with the inner tube 4 to normally take stones, and the uninflated stone taking saccule 1 can not interfere with the umbrella-shaped claws 2 to take stones. And the umbrella-shaped claw 2 can select to synchronously use the calculus removing saccule 1 in the occasions that calculus slippage is easy to occur in the calculus removing process when the calculus is taken out by being sleeved with the calculus. The calculus removing saccule 1 is inflated according to the requirement, and the inflated calculus removing saccule 1 can play an effective cleaning function for the biliary tract. The front end of the umbrella-shaped claw 2 carrying the calculus, namely the front end of the calculus, can be blocked after the calculus removing saccule 1 is inflated, and in the process of backwards recovering the umbrella-shaped claw 2, if the calculus falls off from the umbrella-shaped claw 2, the calculus removing saccule 1 can be synchronously carried and pushed, so that the calculus is effectively cleaned out of the biliary tract.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides an integrative device of stone dragging sacculus is grabbed to biliary tract umbrella type, includes outer tube (3) and inner tube (4) of through connection in outer tube (3), outer tube (3) trailing end connection has outer tube handle (5), inner tube (4) in run through and to have seal wire chamber (14) and annotate liquid chamber (13), inner tube (4) trailing end connection have inner tube handle (6), inner tube (4) be connected with seal wire chamber (14) and seal wire pipe respectively, will annotate liquid chamber (13) and annotate liquid union coupling through inner tube handle (6), seal wire pipe tail end guide hole (8) have, notes liquid pipe tail end liquid hole (7), its characterized in that have: an air injection cavity (15) is further formed in the inner tube (4), a stone removal balloon (1) is sleeved on the outer wall of the front end of the inner tube (4), the stone removal balloon (1) is communicated with the air injection cavity (15) through a pipeline, the inner tube (4) connects the air injection cavity (15) with an air injection tube through an inner tube handle (6), and an air injection hole (9) is formed in the tail end of the air injection tube; an umbrella-shaped claw (2) capable of grabbing stones is fixed on the circumferential outer wall of the inner tube (4) corresponding to the rear side of the stone taking saccule (1) above sea.

2. The biliary tract umbrella type stone-grabbing and stone-dragging balloon integrated device as claimed in claim 1, wherein: the umbrella-shaped claw (2) comprises a plurality of claw bodies, the claw bodies are of claw-shaped structures which are gradually opened relative to the outer wall of the inner pipe (4) from front to back, and the plurality of claw bodies surround the inner pipe (4) to form an umbrella-shaped structure; the claw body from the past to the back including hard section (10) and soft section (11) that connect gradually, hard section (10) front end is fixed with inner tube (4) outer wall, the claw body open for inner tube (4) outer wall from hard section (10) to soft section (11) tail end gradually, the soft or hard degree of soft section (11) be greater than hard section (10).

3. The biliary umbrella type stone-grabbing and stone-dragging balloon integrated device as claimed in claim 2, wherein: the tail end of the soft segment (11) is fixed with a round head (12), and a gap for sleeving the calculus is arranged between the round head (12) and the outer wall of the inner tube (4).

4. The biliary umbrella type stone-grabbing and stone-dragging balloon integrated device as claimed in claim 2, wherein: the tail end of the soft segment (11) is made of soft material.

5. The biliary tract umbrella type stone-grabbing and stone-dragging balloon integrated device as claimed in claim 1, wherein: wire chamber (14) be located inner tube (4) central point and put, notes liquid chamber (13) and gas injection chamber (15) then the symmetry is divided and is established in wire chamber (14) both sides.