CN213665567U

CN213665567U - Stone-fetching gravel basket

Info

Publication number: CN213665567U
Application number: CN202022174510.4U
Authority: CN
Inventors: 杨亮; 王红霞; 罗守军; 戴光立; 孙陈磊; 徐琴鸿; 谢浩芬; 朱红; 汪洁; 姜建帅
Original assignee: Ningbo First Hospital
Current assignee: Ningbo First Hospital
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-07-13
Anticipated expiration: 2030-09-28

Abstract

The utility model relates to a get stone rubble basket, including base member, handle, connecting rod, pull wire and basket, the connecting rod is worn to establish in the base member and is connected with the handle that is provided with the base member rear, and the pull wire is worn to establish in the base member and is connected with the connecting rod, and the basket is connected at the front end of pull wire, and the basket includes three at least basket lines that can draw in and expand outward, and the fixed component that is provided with the stereoplasm of front end of base member. Each basket wire in the basket extends forwards spirally along the axial direction, and the spiral direction of each basket wire is consistent. The utility model provides a get stone rubble basket can utilize the basket to realize on the effect basis that calculus picked up in bile duct, the gall-bladder, can also reach the effect of rubble, and then reaches the purpose that reduces each calculus volume, has avoided blocking the condition in the biliary tract when being taken out because of the calculus is too big. In addition, the calculus removing and breaking basket is strong in calculus wrapping performance, and the probability that broken stones fall is reduced.

Description

Stone-fetching gravel basket

Technical Field

The utility model relates to the technical field of medical equipment, in particular to get stone rubble basket.

Background

With the occurrence of cholelithiasis, which is also called as cholelithiasis, the incidence rate of the cholelithiasis accounts for 10-20% of the world population, and the cholelithiasis can cause complications such as cholangitis, pancreatitis, obstructive jaundice and the like, doctors generally advocate to remove the cholelithiasis, and the open surgery method is adopted in the past. With the development of endoscopic treatment technology and the progress of endoscopic technology, bile duct stones increasingly begin to adopt Endoscopic Retrograde Cholangiopancreatography (ERCP), and the method has high clinical success rate. ERCP has the advantages of no operation, small wound, short operation time and less complication compared with the surgical operation, thus being deeply welcomed by the patients.

Chinese utility model patent "multifunctional intrahepatic and extrahepatic bile duct of authorizing publication number CN201790861U (application number 200920065877.3) gets basket" and chinese utility model patent "gallstone device is got to gall-bladder stone" of authorizing publication number CN201572139U (application number 200920351076.3), among these current stone devices of getting, the basket of front end all follows axial direction extension and radially outwards expands when opening each net basket line, have great space between each net basket line, during the operation, the condition that the easy emergence calculus dropped, especially meet the condition that the calculus of thin and broken, can get unclean. When the calculus is large, and when the calculus is large, the calculus is easy to block in the biliary tract when being taken out, and under the severe condition, the calculus is required to be taken out by an operation, so that the minimally invasive operation loses the original meaning and can cause harm to the body and mind of a patient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem that a stone can enough be got to the above-mentioned prior art provides one kind, can carry out the rubble again, and simple structure's stone and rubble basket.

The utility model aims to solve the second technical problem that provide one kind to above-mentioned prior art can strengthen the parcel nature to the calculus, improve the calculus and get rubble basket of calculus success rate.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: the utility model provides a get stone rubble basket, includes base member, handle, connecting rod, pull wire and basket, the connecting rod is worn to establish in the base member and is connected with the handle that is provided with the base member rear, the pull wire is worn to establish in the base member and is connected with the connecting rod, the basket is connected at the front end of pull wire, its characterized in that: the net basket comprises at least three net basket wires capable of being folded and expanded, and a hard member is fixedly arranged at the front end of the base body.

The utility model provides a technical scheme that above-mentioned second technical problem adopted does: each basket wire in the basket extends forwards spirally along the axial direction, and the spiral direction of each basket wire is consistent.

For convenient operation, the base body comprises a tube sheath and a catheter connected with the tube sheath.

In order to increase the strength of the structural elements, the base body also comprises a rigid telescopic tube connected to the front end of the guide tube, and the structural elements are fixed at the front end of the telescopic tube.

The structure is simple, the traction wire and the net basket are integrated;

the net basket comprises a connecting rod, at least three metal wires, a first fixing piece, a second fixing piece, a traction wire and a basket body, wherein the at least three metal wires are spirally wound to form a wire body, the rear end of the wire body is connected to the connecting rod, the foremost end of the wire body is provided with the first fixing piece for fixing the metal wires, the position, close to the fixing piece, of the wire body is sleeved with the second fixing piece, the part, located at the rear part of the second fixing piece, of the wire body forms the traction wire, and.

Compared with the prior art, the utility model has the advantages of: the utility model provides a get stone rubble basket can utilize the basket to realize on the effect basis that calculus picked up in bile duct, the gall-bladder, can also be when drawing in the basket in through the handle, under the pulling effect of handle for calculus extrusion in the basket reaches the effect of rubble on the stereoplasm component of base member front end, and then reaches the purpose that reduces each calculus volume, has avoided blocking the condition in the biliary tract when being taken out because of the calculus is too big.

In addition on the basis that can realize getting of calculus and rubble work in bile duct, the gall-bladder, each basket line in the basket extends forward and the spiral direction of each basket line is unanimous along the axial spiral, and the basket that so forms the parcel effect in circumference, has promoted the parcel nature to the calculus of picking up, even on the basis of accomplishing the rubble, also can be fine under the pulling effect of handle realize the parcel to the rubble, avoid appearing the condition that the calculus dropped.

The stone and gravel basket in the embodiment has a simple structure, does not need other extra special stone breaking devices such as laser fibers and the like, and is low in cost.

Drawings

Fig. 1 is a perspective view of the gravel-removing basket in the embodiment of the present invention when the basket is opened.

Fig. 2 is a cross-sectional view of fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 and 2, the stone-picking gravel basket in the embodiment comprises a base 1, a handle 2, a connecting rod 3, a traction wire 4 and a basket 5.

The base body 1 comprises a tube sheath 11 and a catheter 12 connected with the tube sheath 11, and the tube sheath 11 and the catheter 12 can be connected through sleeving a heat-shrinkable tube for heat-shrinkable processing. The sheath 11 can adopt some sheath 11 structures commonly used in the existing medical equipment, and the sheath 11 structure is a hard structure, so that a user can hold the sheath conveniently for operation. The catheter 12 can be a flexible tube with certain hardness, so as to conveniently extend into a stone removing position in the gall bladder and the bile duct, and the catheter 12 can be ensured to smoothly advance and also be deformed to move to an operation position.

Connecting rod 3 wears to establish in base member 1 and is connected with handle 2 that is provided with base member 1 rear, so through the back-and-forth movement operation to handle 2 for base member 1, can drive connecting rod 3 for base member 1 back-and-forth movement along the axial of base member 1.

The pull wire 4 is arranged in the base body 1 in a penetrating mode and connected with the connecting rod 3, and then can move back and forth in the guide pipe 12 along the axial direction of the base body 1 under the driving of the connecting rod 3. The basket 5 is connected with the front end of the traction wire 4, and the basket 5 comprises at least three basket wires which can be folded and expanded. When the handle 2 is pulled backwards, the basket 5 can be folded into the conduit 12 by the pull wire 4. When the handle 2 is pushed forward, the basket 5 can be extended out of the front end of the catheter 12 to be expanded.

The pull wire 4 and the basket 5 are in this embodiment in one piece. At least three metal wire spiral twists to be a line body, and the rear end of the line body is connected on connecting rod 3, and the foremost end of the line body is provided with the first mounting 7 of fixed each metal wire, and the position cover that is close to the mounting on the line body is equipped with second mounting 8, and the part that the line body is located 8 rear portions of second mounting constitutes pull wire 4, and pull wire 4 of this kind of structure has certain intensity, conveniently drives basket 5 and moves. The part of the wire body between the first fixing piece 7 and the second fixing piece 8 forms the net basket 5. During production, the metal wires forming the basket 5 are shaped, so that the basket wires in the basket 5 spirally extend forwards along the axial direction and the spiral directions of the basket wires are consistent. The basket 5 that so forms the parcel effect in circumference, has promoted the parcel nature to the calculus of picking up, even on the basis of accomplishing the rubble, also can be fine under the pulling effect of handle 2 parcel to the rubble, avoid appearing the condition that the calculus dropped.

A hard member 6 is fixedly provided at the front end of the base 1. In order to increase the strength of the member 6, the base body 1 further comprises a rigid telescopic tube 13 connected to the front end of the guide tube 12, for example, a stainless steel telescopic tube 13 may be used. In this embodiment, the heat-shrinkable tube is sleeved outside the rigid telescopic tube 13 and the connecting portion between the rigid telescopic tube 13 and the catheter 12, so as to perform heat-shrinkable processing connection, thereby realizing connection between the rigid telescopic tube 13 and the catheter 12, and the processed outer surface of the structure is smoother, so that the injury to the patient during the operation is less. The member 6 is fixed to the front end of the bellows 13 and the member 6 is exposed outside the front end of the heat shrink tube. During storage, the guide pipe 12 and the traction wire 4 in the guide pipe can be processed to be placed together in a circular disc shape, so that the storage volume is very small, and the transportation and the storage are convenient.

When the operation begins, basket 5 draws in the flexible pipe 13 of the rigidity of base member 1 front end, calculus position in with the front end propelling movement of base member 1 to gall-bladder or bile duct, then promote handle 2 forward, at connecting rod 3, under the effect of pull wire 4, make basket 5 expand and go out in the flexible pipe 13 of rigidity, operation base member 1, make the calculus enter into basket 5 through the space between the basket line in, at this moment, pull handle 2 backward, then each basket line draws in, the heliciform basket line makes the parcel nature to the calculus very good, avoid the condition that the calculus dropped. If the size of the stone is small, the substrate 1 can be pulled directly outwards to complete the stone extraction operation. If the calculus size is great, when having the risk of card in the biliary tract, then realize the basis to the parcel of calculus at basket 5, continue pulling handle 2 backward for the calculus extrudees on to component 6, realizes the rubble under the effect of stereoplasm component 6 as far as, makes the calculus size after the rubble satisfy and takes out the requirement.

The utility model provides a get stone rubble basket can utilize basket 5 to realize on the effect basis that calculus picked up in bile duct, the gall-bladder, can also reach the effect of rubble, and then reaches the purpose that reduces each calculus volume, has avoided blocking the condition in the biliary tract when being taken out because of the calculus is too big. In addition, the calculus removing and breaking basket is strong in calculus wrapping performance, and the probability that broken stones fall is reduced. And the stone-taking and stone-breaking basket in the embodiment has a simple structure, does not need other extra special stone-breaking devices such as laser fibers and the like, and is low in cost.

Claims

1. The utility model provides a get stone rubble basket, includes base member (1), handle (2), connecting rod (3), pull wire (4) and basket (5), connecting rod (3) are worn to establish in base member (1) and are connected with handle (2) that are provided with base member (1) rear, pull wire (4) are worn to establish in base member (1) and are connected with connecting rod (3), the front end at pull wire (4), its characterized in that are connected in basket (5): the net basket (5) comprises at least three net basket wires capable of being folded and expanded, and a hard member (6) is fixedly arranged at the front end of the base body (1).

2. The stone and gravel basket of claim 1, wherein: each basket wire in the basket (5) spirally extends forwards along the axial direction, and the spiral directions of the basket wires are consistent.

3. The stone and gravel basket of claim 1 or 2, wherein: the base body (1) comprises a tube sheath (11) and a conduit (12) connected with the tube sheath (11).

4. The stone and gravel basket of claim 3, wherein: the base body (1) further comprises a rigid telescopic pipe (13) connected to the front end of the guide pipe (12), and the member (6) is fixed to the front end of the telescopic pipe (13).

5. The stone and gravel basket of claim 1 or 2, wherein: the traction wire (4) and the net basket (5) are integrated;

at least three metal wires are spirally wound to form a wire body, the rear end of the wire body is connected to the connecting rod (3), a first fixing piece (7) for fixing each metal wire is arranged at the foremost end of the wire body, a second fixing piece (8) is sleeved at a position, close to the fixing piece, on the wire body, the part, located at the rear part of the second fixing piece (8), of the wire body forms the traction wire (4), and the part, located between the first fixing piece (7) and the second fixing piece (8), of the wire body forms the basket (5).