Single-balloon pushing device for calculus incarceration under ERCP

Abstract

The utility model discloses a single-balloon pushing device for calculus incarceration under ERCP, which comprises a rubber inner core, and a zebra guide wire is arranged on the rubber inner core in a penetrating manner; the balloon is fixedly connected to the front end of the rubber inner core in a sleeving manner; a first channel is further formed in the rubber inner core, a connecting opening is formed in the side wall of the front end of the first channel, and the connecting opening is communicated with the interior of the balloon; a front end inner core is integrally arranged at the front end of the rubber inner core. An existing calculus removing balloon is improved, the front-end inner core with certain hardness is additionally arranged, and the balloon is matched with the expansion function of the balloon, so that incarcerated calculus of a patient can be pushed into the wide position of the upper section of the bile duct again, the calculus can be conveniently fished out by a net basket again, surgical operation is not needed, and pain and economic pressure of the patient are relieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, especially a single ball sac pusher for the stone impacted under ERCP. BACKGROUND

[0002] Extrahepatic bile duct stone is a common and frequently-occurring disease in China, with the continuous development of endoscopic technology and the continuous improvement of its accessories, extrahepatic bile duct stones are mostly taken by endoscopic retrograde cholangiopancreatography (ERCP) lithotomy. Compared with traditional open or modern laparoscopic bile duct exploration and stone surgery, ERCP has the advantages of small trauma, high safety factor and rapid recovery.

[0003] Currently, the consumables used for ERCP stone extraction are mainly stone extraction balloon and stone extraction basket. Small stones are often extracted by balloon, and stones with a diameter of more than 1 cm are mostly extracted by basket. In the process of ERCP removing bile duct stones, when the stones fall off from the basket, they are easy to be impacted in the lower segment of the common bile duct. Since the size of the lower segment of the common bile duct is small, it is difficult to fish again with the basket at this time, which affects the normal progress of the stone extraction surgery, and only surgical stone extraction can be performed, increasing the pain and economic pressure of the patient. UTILITY MODEL CONTENT

[0004] The utility model aims at the problem that in the process of ERCP removing bile duct stones, when the stones fall off from the basket, they are easy to be impacted in the lower segment of the common bile duct, since the size of the lower segment of the common bile duct is small, it is difficult to fish again with the basket at this time, which affects the normal progress of the stone extraction surgery, and provides a single balloon pusher for the stone impacted under ERCP.

[0005] A single balloon pusher for the stone impacted under ERCP, comprising

[0006] A rubber inner core is provided with a zebra guide wire penetrating through it;

[0007] A balloon is fixedly sleeved at the front end of the rubber inner core; a first channel is further provided on the rubber inner core, and a connecting port is provided on the front end side wall of the first channel, which is in communication with the interior of the balloon;

[0008] The front end of the rubber inner core is integrally provided with a front end inner core.

[0009] Further, the diameter of the front end of the front end inner core gradually increases towards the rear end.

[0010] Further, a sheath tube is further slidably provided on the inner core, and the sheath tube is located at the rear side of the balloon.

[0011] Further, a three-way valve is provided at the inlet end of the first channel.

[0012] Further, the balloon is provided with fixed rubber at the front and rear ends.

[0013] The utility model discloses the beneficial effect is: through the improvement of the existing stone taking balloon, add the inner core of a certain hardness front end, cooperate the expansion function of balloon, can again push the patient's impacted calculus into the upper segment of bile duct wider, the stone is conveniently fished again in net basket, need not carry out surgical operation, alleviate the patient's distress and economic pressure. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the structural schematic diagram of the device;

[0015] Fig. 2 It is the internal structure schematic diagram of the device;

[0016] In the drawing, 1 - zebra guide wire, 2 - rubber inner core, 20 - front end inner core, 21 - second channel, 22 - first channel, 3 - balloon, 30 - connecting port, 31 - fixed rubber, 4 - sheath tube, 5 - three-way valve. DETAILED DESCRIPTION

[0017] The embodiments of the utility model will be described below through specific examples, and the person skilled in the art can easily understand other advantages and effects of the utility model from the disclosure of the specification. The utility model can also be implemented or applied through other different specific embodiments, and various modifications or changes can be made based on different viewpoints and applications without departing from the spirit of the utility model. It should be noted that the following examples and features in the examples can be combined with each other without conflict.

[0018] It should be noted that the drawings provided in the following examples only illustrate the basic concept of the utility model in a schematic manner, and the drawings only show the components related to the utility model without drawing the number, shape and size of the components during actual implementation. The shape, number and proportion of each component during actual implementation can be changed arbitrarily, and the component layout pattern can be more complex.

[0019] Example 1

[0020] As Figs. 1-2 shown, a single-balloon pushing device for impacted calculus under ERCP includes a rubber inner core 2, and a first channel 22 for water or gas injection and a second channel 21 for zebra guide wire 1 are provided on the rubber inner core 2 along the length direction. Wherein, the second channel 21 is provided through, and the most front end of the first channel 22 is located at the balloon 3.

[0021] The balloon 3 is fixedly sleeved at the front end of the rubber inner core 2; in order to ensure the sealing of the balloon 3 during use and prevent the balloon 3 from sliding, the front and rear ends of the balloon 3 are respectively provided with fixed rubbers 31. On the other hand, in order to realize the communication of the balloon 3 with the first channel 22, the front end side wall of the first channel 22 is provided with a connecting port 30 which is in communication with the inside of the balloon 3;

[0022] The front end of the rubber inner core 2 is integrally provided with a front end inner core 20. The diameter of the front end inner core 20 gradually increases from the front end to the rear end. By adopting the front end inner core 20 which is the thinnest at the front end and gradually thickens, it can be ensured that the front end inner core 20 can smoothly pass through the stone impacted site, and in combination with the zebra guide wire 1, the moving track of the balloon 3 can be ensured, so as to facilitate the pushing of the stone back to the upper segment of the bile duct for re-stone extraction.

[0023] In order to realize the pushing of the balloon 3, the sheath tube 4 is also slidably arranged on the inner core 2, and the sheath tube 4 is located at the rear side of the balloon 3.

[0024] In order to realize the water or gas injection to the balloon 3, the inlet end of the first channel 22 is provided with a three-way valve 5, one connecting port of which is connected with the first channel 22, and the other two connecting ports are respectively connected with the gas supply pipe and the water supply pipe.

[0025] The use mode of the device is as follows: firstly, the zebra guide wire 1 is inserted into the inner core 2, the inner core 2 with the zebra guide wire 1 passes through the impacted stone, and then the balloon 3 and the sheath tube 4 are inserted along the inner core 2, the balloon 3 is injected with appropriate amount of gas or water to make the balloon expand, and then the stone is pushed into the upper segment of the bile duct by pushing the sheath tube 4.

[0026] The above-described embodiments only express the specific implementation manners of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A single balloon delivery device for stone impaction during ERCP, characterized in that: Comprising A rubber inner core (2) is provided with a zebra guide wire (1) through it; A balloon (3) is fixedly sleeved on the front end of the rubber inner core (2); a first channel (22) is further provided on the rubber inner core (2), and the front end side wall of the first channel (22) is provided with a connecting port (30) in communication with the inside of the balloon (3); The front end of the rubber inner core (2) is integrally provided with a front end inner core (20).

2. A single balloon push device for stone impaction under ERCP as claimed in claim 1, wherein: The diameter of the front end of the front end inner core (20) gradually increases from the front end to the rear end.

3. A single balloon push device for stone impaction under ERCP as claimed in claim 1, wherein: A sheath tube (4) is further slidably provided on the inner core (2) and located at the rear side of the balloon (3).

4. A single balloon push device for stone impaction under ERCP as claimed in claim 1, wherein: The inlet end of the first channel (22) is provided with a three-way valve (5).

5. A single balloon push device for stone impaction under ERCP as claimed in claim 1, wherein: The front and rear ends of the balloon (3) are respectively provided with fixed rubbers (31).

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