阅读说明：本技术 一种ercp术后残余胆管结石用取石器 (Stone extractor for residual bile duct stones after ERCP (endoscopic retrograde cholangiopancreatography) operation ) 是由 张继军 于 2021-08-24 设计创作，主要内容包括：本发明专利公开了一种ERCP术后残余胆管结石用取石器,具体涉及医疗器械的技术领域。一种ERCP术后残余胆管结石用取石器,包括外管和螺纹连接在外管一端的旋柄,所述旋柄上设有滑动连接在外管内的传动丝,所述传动丝外还包覆有与外管可拆卸连接的透明管,所述传动丝的自由端还连接有钢丝和位于钢丝自由端的密封头,所述钢丝上包覆有海绵,所述钢丝的两端周向等距分布有多根弧形导丝,所述密封头与透明管相卡合；所述外管上还设有鲁尔接头。采用本发明技术方案解决了现有的ERCP取石而无法将患者胆管结石清除干净的问题,可用于胆管结石的取出。(The invention discloses a stone extractor for residual bile duct stones after ERCP (percutaneous transluminal coronary angioplasty), and particularly relates to the technical field of medical instruments. A stone extractor for residual bile duct stones after ERCP (anterior coronary artery disease) operation comprises an outer tube and a rotary handle in threaded connection with one end of the outer tube, wherein a transmission wire in sliding connection with the outer tube is arranged on the rotary handle, a transparent tube detachably connected with the outer tube is further coated outside the transmission wire, the free end of the transmission wire is further connected with a steel wire and a sealing head located at the free end of the steel wire, a sponge is coated on the steel wire, a plurality of arc-shaped guide wires are distributed at equal intervals in the circumferential direction of two ends of the steel wire, and the sealing head is clamped with the transparent tube; the outer tube is also provided with a luer connector. The technical scheme of the invention solves the problem that the bile duct stones of the patient cannot be removed completely due to the existing ERCP stone removal, and can be used for removing the bile duct stones.)

1. A stone extractor for residual bile duct stones after ERCP (anterior coronary artery disease) operation is characterized in that: the device comprises an outer pipe and a rotary handle which is in threaded connection with one end of the outer pipe, wherein the rotary handle is provided with a transmission wire which is connected in the outer pipe in a sliding manner, the transmission wire is further wrapped with a transparent pipe which is detachably connected with the outer pipe, the free end of the transmission wire is further connected with a steel wire and a sealing head which is positioned at the free end of the steel wire, the steel wire is wrapped with sponge, a plurality of arc-shaped guide wires are distributed at the circumferential direction of two ends of the steel wire at equal intervals, and the sealing head is clamped with the transparent pipe; the outer tube is also provided with a luer connector.

2. The lithotomy device for residual bile duct stones after ERCP (percutaneous transluminal coronary angioplasty) according to claim 1, wherein: each guide wire is made of memory alloy.

Technical Field

The invention relates to the technical field of medical instruments, in particular to a stone extractor for residual bile duct stones after ERCP (anterior coronary artery disease).

Background

Biliary calculi are common diseases in surgery, and calculi in common bile duct can cause secondary jaundice of biliary obstruction, cholangitis and pancreatitis to endanger life. Calculus of bile duct may also be complicated by biliary cirrhosis, hepatic atrophy, liver abscess, etc. The clinical symptoms of bile duct stones are mainly manifested as epigastric pain. The only treatment method for bile duct stones is surgical treatment, i.e. stones in the bile duct are taken out or broken out in a surgical mode. Common treatment methods are: firstly, exploring and fetching stone along the direction of a bile duct by using metal hard stone fetching forceps; secondly, a rubber catheter is inserted into each bile duct and then is washed; and taking out the stone by using a choledochoscope.

In clinic, after a patient takes calculus through ERCP, balloon pressurization radiography prompts the patient to clean the calculus in the bile duct, but the patient adopts a way of embedding a Spyglass in the bile duct for observation, a large amount of residual silt-like calculus or floccule can still be observed under direct vision, and A shows that 4 mm of calculus remains in the common bile duct; b shows that there is a large amount of debris, bile sludge and/or flocs in the common bile duct; c, a small amount of broken stones, bile sludge and floccules are contained in the common bile duct; d, displaying that flocculate exists in the common bile duct; e shows common bile duct cleaning. The residual bile duct stones gradually develop and become large, and finally, even secondary operations are possibly needed to remove the stones, so that the body and mind of the patient are injured.

Disclosure of Invention

The invention aims to provide a stone extractor for residual bile duct stones after an ERCP (percutaneous transluminal coronary angioplasty) operation, which solves the problem that the bile duct stones of a patient cannot be removed completely by the conventional ERCP stone extraction.

In order to achieve the purpose, the technical scheme of the invention is as follows: a stone extractor for residual bile duct stones after ERCP (anterior coronary artery disease) operation comprises an outer tube and a rotary handle in threaded connection with one end of the outer tube, wherein a transmission wire in sliding connection with the outer tube is arranged on the rotary handle, a transparent tube detachably connected with the outer tube is further coated outside the transmission wire, the free end of the transmission wire is further connected with a steel wire and a sealing head located at the free end of the steel wire, a sponge is coated on the steel wire, a plurality of arc-shaped guide wires are distributed at equal intervals in the circumferential direction of two ends of the steel wire, and the sealing head is clamped with the transparent tube; the outer tube is also provided with a luer connector.

Furthermore, each guide wire is made of memory alloy.

Through the arrangement, the guide wire can keep the same arc shape when moving out of the transparent tube, the efficiency of the scheme is improved, and meanwhile, the condition that the guide wire damages the bile duct of a patient is avoided.

Compared with the prior art, the beneficial effect of this scheme:

1. the scheme can non-invasively take out small blocky stones or quicksand-shaped broken stones in the bile duct of the patient, and cannot damage the bile duct wall of the patient;

2. the scheme can also completely take out silt-shaped or flocculent stones adhered to the bile duct, so as to prevent tiny stones from remaining in the bile duct and continuing to grow to cause the recurrence of stones and influence the health of patients;

3. the scheme can reduce the diameter of the outer tube entering the patient body under the condition of not influencing the stone removing range and efficiency, and is favorable for the operation of a doctor and the simplification of the stone removing difficulty.

Drawings

FIG. 1 is a front view of a stone extractor for residual bile duct stones after ERCP surgery according to the invention.

Detailed Description

The present invention will be described in further detail below by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises an outer tube 1, a rotating handle 2, a luer connector 3, a transmission wire 4, a transparent tube 5, a steel wire 6, a sponge 7 and a guide wire 8.

Examples

As shown in figure 1: the utility model provides a remaining bile duct stone extractor for calculus of ERCP postoperative, including outer tube 1 and threaded connection at the swing handle 2 of outer tube 1 left end, one side that is close to swing handle 2 on outer tube 1 still is equipped with luer joint 3, the center fixedly connected with sliding connection of swing handle 2 is at the driving wire 4 of outer tube 1, the free end of driving wire 4 still the cladding have with the hyaline tube 5 that the outer tube 1 free end bonded, the free end of driving wire 4 still is connected with steel wire 6 and the sealed head that is located the 6 free ends of steel wire, the mouth of pipe looks block of sealed head and hyaline tube 5 free end, the diameter of sealed head is less than the external diameter of hyaline tube 5 simultaneously, the cladding has sponge 7 on the steel wire 6, the both ends circumference equidistance of steel wire distributes has many arc seal wires 8, the quantity of seal wire 8 adopts four in this embodiment, every seal wire 8 all adopts memory alloy to make.

The working process of the scheme is as follows: the transparent tube 5 is placed in a bile duct of a patient, then the rotating handle 2 is rotated to enable the transmission wire 4 to drive the steel wire 6, the guide wire 8 coated outside the steel wire 6 and the sealing head to move out of the transparent tube 5, at the moment, the guide wire 8 returns to be in an arc shape to form a lantern similar to a hollow lantern in an enclosing mode, meanwhile, the sponge 7 on the steel wire 6 extends out of the transparent tube 5 to expand, and the sponge 7 is used for adsorbing and removing flocculent and silt-shaped stones; the guide wire 8 can better restrict the expansion degree of the sponge 7 and can protect the bile duct of the patient. The guide wire 8 is made of a memory alloy material, and can effectively maintain a stable shape in the using process.

The foregoing are merely examples of the present invention and common general knowledge of known specific structures and/or features of the schemes has not been described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.