CN2348781Y

CN2348781Y - Hydraulic bag driving type solitary loop-ligation device

Info

Publication number: CN2348781Y
Application number: CN 98222362
Authority: CN
Inventors: 刘明; 王磊
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-11
Filing date: 1998-09-11
Publication date: 1999-11-17
Anticipated expiration: 2008-09-11

Abstract

The utility model relates to a hydraulic bag driving type solitary loop ligation device for an endoscope. The utility model is composed of a loop ligation tube, a loop ligation ring, an elastic bag, a connecting guide tube and a spherical liquid bag. The hydraulic bag driving type solitary loop ligation device which is directly arranged at the front end of an endoscope can be led into the oesophagus and the stomach by the endoscope through an outer sleeve tube. When the spherical liquid bag is extruded so as to inject liquid into the elastic bag arranged at the front end of the connecting guide tube, or when a syringe is used for injecting liquid into the elastic bag through the connecting guide tube, the sealed type elastic bag is passively dilated and expanded, and the highly elastic O-shaped loop ligation ring which is sheathed at the front of the outer side of the elastic bag continuously moves forwards and upwards under the action force of the elastic bag, thereby, the highly elastic O-shaped loop ligation ring rolls towards the direction of the front end of the loop ligation tube. Finally, the loop ligation ring falls off at the front end of the loop ligation tube, the loop ligation ring elastically retracts into the root part of the varicose vein in a loop ligation way, blood flow in the vein is blocked, thereby, the process of one-shot loop ligation is completed. The root part of the varicose vein is sucked into the front half part of the loop ligation tube by negative pressure in advance, and the inner side of the root part of the varicose vein is protuberant. Because the connecting guide tube is a soft guide tube, the connecting guide tube can be freely bent and a biopsy path of the endoscope is not occupied. Under the direct vision of the endoscope, the utility model has the advantages of visual and convenient operation, simple and quick assembly and strong flexibility.

Description

Hydraulic pressure capsule driving single-shot looping and binding device

A kind of hydraulic pressure capsule driving single-shot looping and binding device that uses at direct view under endoscope belongs to medical apparatus and instruments.

Use early stage product (as U.S.'s crust medical Development Co., Ltd product and sky, domestic Tianjin doctor's medical grade silicon rubber products factory product) that esophageal variceal vein is carried out the direct view under endoscope ligation treatment, though it is simple in structure, but need to change repeatedly the new cover of assembling prick in pipe and cover prick ring and just can do treatment operation once more, program is more numerous and diverse, and efficient is lower.And need to use a thick draught line to pass through endoscopic biopsy channel, negative pressure suction force and therapeutic effect when having influenced treatment, in addition, this kind line traction looping and binding device is still needed firmly, and tractive just can make the interior pipe of cover bundle in the place ahead retreat, cover is pricked and is encircled, and draught line is slippage sometimes, is under the rollover states and can not uses at the scope front end, so can not be in order to the treatment of varices of fundus of stomach, therapeutic domain is restricted.Make flowing mode though the pneumatic type single-shot looping and binding device of SUMITOMO CHEMICAL Co., Ltd. Development and Production has improved, improved efficient, its structure is complicated, generally need 's cooperation ability complete operation, and price is more expensive.Multiple continuity looping and binding device produced in USA (such as the speedband five rings looping and binding device of Boston Science ﹠ Technology Ltd. and become six-shooter six ring loop ligature apparatus of your scholar's cock company) but one-time continuous discharges a plurality of ligation rings, but structure and packaging technology complexity, the cost height.In addition, its ligation ring quantity is fixed, clinically can not be according to the actual conditions flexible Application.

In view of the foregoing, the purpose of this invention is to provide a kind of easy and simple to handle at direct view under endoscope, the efficient height, simple in structure, be easy to processing, cheap, the single-shot looping and binding device of operation principle novelty.

The scope hydraulic bag driving type solitary loop-ligation device is made up of ligation tube, ligation ring, elastomeric bladder, connecting duct and liquid capsule.

Scope hydraulic pressure capsule driving single-shot looping and binding device directly is placed in the scope front end and imports esophagus by scope by the trocar sheath that is positioned over the esophagus epimere in advance, enter gastric, intuitively easy in the direct view under endoscope operation, can according to how much cirsoid, arbitrarily focus is carried out multiple-point ligation treatment by the process of assembling a plurality of covers bundle rings repeatedly, motility is strong.Owing to adopted the new start principle of not using draught line, this hydraulic bag driving type solitary loop-ligation device does not produce the functional status of scope when finishing cover and prick action and disturbs, the big spherical liquid capsule that the doctor places the patient body to be connected with the connecting duct rear end outward with the hand extruding can be to the little elastomeric bladder generation effect of front end, continue and promotion ligation ring disengaging ligation tube, the elastical retraction cover is tied on the cirso-, thereby finish and once overlap the bundle program, withdrawing from scope only need to fast and simply assemble a new ligation ring via the ligation ring assembler again and can carry out treatment second time and operate, so clinical application is very easy, a people can finish whole operating process.

Ligation tube first half inboard is hard tube, and the outside attaches an enclosed elastic capsule, normally is the contraction hollow state, links to each other in the spherical liquid capsule of a self expandable or a syringe by a long connecting duct.Latter half of is an elastic rubber tube, connects so that ligation tube is connected with the scope front end.With the high resiliency of expansion state common O shape ligation ring or with a lesser tubercle after processing is processed twist the special O shape ligation ring cover that changes of shape be put in outside the enclosed elastic capsule in the ligation tube first half outside.When by the spherical liquid capsule of extruding or use syringe via connecting duct during to the elastomeric bladder filling liquid of its front end, this enclosed elastic capsule expands passive expansion, the high resiliency O shape ligation ring that cover is put in its outside is subjected to its active force and produces the continuous motion upwards that reaches forward, thereby extreme direction rolls before the ligation tube, come off from the ligation tube front end at last, the elastical retraction cover is tied in and is entered ligation tube first half inboard and the cirso-root of protuberance by vacuum suction in advance, block venous blood flow, once overlapped the bundle process thereby finish.Because connecting duct is soft conduit, can be attached at the shank outside with scope free bend, do not affect the motion of scope, do not take the biopsy channel of scope, therefore can give full play to the vacuum suction effect of endoscopic biopsy channel.

Product according to above-mentioned principle manufacturing is compared with existing domestic and international single-shot looping and binding device, one owing to adopted the method for novel promotion ligation ring, thereby so that ligation ring is in ligation tube generation skid effect forward, be different from the simple slip effect of traditional product fully, be easier to coming off of ligation ring, operation is more easily simple; Two since connecting duct be attached at shank and draw the biopsy channel that does not take scope outward, so can farthest bring into play its function, such as vacuum suction, flushing and insertion puncture needle injection of sclerosing agent etc.; Three because connecting duct is that soft conduit can be with any crooked function that does not affect its free transmit fluid power of scope, so especially be applicable under the state of various complexity and use; Four prick the ligation ring that inner tube only need more renew and can carry out the retreatment operation because there not being cover, so use simple and convenient.Compare with the pneumatic type single-shot looping and binding device of Japan, structure is more simple and practical, and processing and manufacturing is easier, and operation is more easily quick.

Description of drawings:

Fig. 1: the vertical section structural map of hydraulic pressure capsule driving single-shot looping and binding device first embodiment

Fig. 2: the vertical section structural map of hydraulic pressure capsule driving single-shot looping and binding device second embodiment

Fig. 3: the vertical section structural map of hydraulic pressure capsule driving single-shot looping and binding device the 3rd embodiment

1. elastomeric bladder, 2. connecting ducts, 3. liquid capsules, 4. ligation rings, 5. ligation tubes among the figure

Most preferred embodiment of the present invention is, it is that rigid cover is pricked pipe that cover is pricked pipe (5) first half inboard, the outside attaches a closed elastomeric bladder (1), connect with spherical liquid capsule (3) of self expandable or syringe (6) order by even pressing conduit (2), high resiliency O shape cover bundle ring (4) cover is put in outside the closed elastomeric bladder.Ligation tube is latter half of to be an elastic rubber tube.

The ligation tube first half is processed by non-toxic rigid plastic, and ligation tube is latter half of, the spherical liquid capsule of dilatancy and connecting duct be by the silicon rubber manufacturing, and elastomeric bladder is made by nontoxic transparent rubber, and ligation ring is made by the high resiliency nontoxic rubber.

Claims

1 one kinds of scope hydraulic bag driving type solitary loop-ligation devices, mainly formed by ligation tube, ligation ring, elastomeric bladder, connecting duct and liquid capsule, it is characterized in that: the ligation tube first half is inboard to be hard tube, the outside attaches an elastomeric bladder, be connected with liquid capsule or the syringe of rear end by connecting duct, high resiliency O shape ligation ring cover is put in outside the elastomeric bladder, and ligation tube is latter half of to be elastic rubber tube.

2. a kind of scope hydraulic bag driving type solitary loop-ligation device according to claim 1 is characterized in that: the all-round or local tight attaching one in the outside of ligation tube first half hard tube is the closed hollow elasticity capsule of elastical retraction state.

3. a kind of scope hydraulic pressure capsule driving single-shot looping and binding device according to claim 1 is characterized in that: the connecting duct front end is connected with the elastomeric bladder that cover is pricked the pipe first half outside, and its rear end is connected with liquid capsule or is a syringe interface.

4. a kind of scope hydraulic pressure capsule driving single-shot looping and binding device according to claim 1 is characterized in that: the liquid capsule that the connecting duct rear end is communicated with is self expandable sphere or garden cylindricality rubber bag tank.

5. a kind of scope hydraulic bag driving type solitary loop-ligation device according to claim 1 is characterized in that: ligation ring can be general common O shape ring, also can be the special O shape ring with a tubercle.