CN210903228U - Self-locking disposable ureter calculus-taking basket - Google Patents

Abstract

The utility model provides a self-locking disposable ureter calculus removing basket, which comprises a handle, a sheath tube and a basket part which are connected in sequence, wherein the handle is provided with a chute along the length direction of the handle, and the handle is also provided with a sliding key and a self-locking mechanism; the sliding key is arranged in the sliding groove in a sliding manner; the self-locking mechanism is arranged on the opposite side of the sliding key and used for preventing the sliding key from sliding in the sliding groove; one end of the basket part penetrates through the sheath pipe and is connected with the sliding key. The utility model discloses on current disposable ureter calculus extraction basket basis, add self-locking mechanism, after calculus extraction basket cover gets the calculus, prevent the slip key through self-locking mechanism and drive basket portion slip for the entangle calculus that basket portion can be better does not drop, thereby has avoided the doctor to need long-time accurate hold the position of getting the calculus basket in the operation, has reduced the hand action, labour saving and time saving improves work efficiency.

Description

Self-locking disposable ureter calculus-taking basket

Technical Field

The utility model belongs to the technical field of medical instrument, in particular to disposable ureter calculus extraction basket of can auto-lock.

Background

In recent years, the operation of calculus removing under ureteroscope is more and more, and the calculus removing basket is the most widely applied medical instrument in ureteroscope calculus removing. Chinese patent CN201520989260.6 discloses a disposable ureter calculus removing basket, and this calculus removing basket pulls back the basket body through control push-pull handle and releases the basket for the calculus can be caught to the basket, then controls push-pull handle again and releases the basket body in order to tighten up the basket, makes the basket can fix the calculus and take out the calculus, can reduce the calculus drift, effectively removes and snatchs the calculus.

However, when the stone-taking basket is used, especially when some small stones are taken, the stone-taking basket cannot be locked after the stones are taken, the stones are limited in the basket only by manually holding the stone-taking basket, the stones are easily caused to fall out of the basket, the stone-taking basket needs to be taken repeatedly, time and labor are wasted, and the work efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a but auto-lock disposable ureter calculus extraction basket aims at solving among the prior art and gets unable locking behind the calculus of basket cover, leads to the technical problem that the calculus easily drops out the basket.

In order to solve the technical problem, the utility model discloses take following technical scheme:

a self-locking disposable ureter calculus removal basket comprises a handle, a sheath tube and a basket part which are sequentially connected, wherein a sliding groove is formed in the handle along the length direction of the handle, and a sliding key and a self-locking mechanism are further arranged on the handle; the sliding key is arranged in the sliding groove in a sliding manner; the self-locking mechanism is arranged on the opposite side of the sliding key and used for preventing the sliding key from sliding in the sliding groove; one end of the basket part penetrates through the sheath pipe and is connected with the sliding key.

Furthermore, a through hole is formed in one side, opposite to the sliding groove, of the handle, and the self-locking mechanism is matched with the through hole.

Furthermore, the self-locking mechanism comprises a key, a swing arm and an elastic element, and the key is rotatably arranged in the through hole; one end of the swing arm is rotatably connected with the key, and the other end of the swing arm is contacted with the elastic element; the elastic element is arranged opposite to the sliding key.

Further, the handle comprises a first shell and a second shell, and the first shell and the second shell are connected to form the handle with a containing cavity.

In order to better fix the first shell and the second shell together, furthermore, a plurality of cylinders are uniformly arranged in the first shell, a plurality of cylinder holes are uniformly arranged in the second shell, and the positions of the cylinders and the positions of the cylinder holes are in one-to-one correspondence.

Furthermore, the basket part is a three-petal flower or four-petal flower-shaped basket, each petal of the three-petal flower or the four-petal flower is formed by bending an independent basket wire, and the top of the petal is arc-shaped.

Furthermore, the basket wire is made of nickel-titanium alloy wires.

Further, each of the "petals" of the basket portion are identical in shape and size.

The utility model provides a but self-locking disposable ureter calculus extraction basket's beneficial effect lies in:

the utility model discloses on current disposable ureter calculus extraction basket basis, add self-locking mechanism, after calculus extraction basket cover gets the calculus, prevent the slip key through self-locking mechanism and drive basket portion slip for the entangle calculus that basket portion can be better does not drop, thereby has avoided the doctor to need long-time accurate hold the position of getting the calculus basket in the operation, has reduced the hand action, labour saving and time saving improves work efficiency.

When the utility model is used, the sliding key is controlled to control the basket part to contract or extend out of the sheath tube, so that the basket part can be conveniently controlled to sleeve and take the stone; the basket part is made of nickel-titanium alloy wires, so that the basket part has super elasticity and memory while certain hardness is ensured, and can be freely stretched in the sheath tube according to needs, so that the basket part can smoothly pass through the ureter and an external working channel, and the basket part is effectively prevented from being damaged due to friction and touch with a ureter; the basket part is in the shape of a three-petal flower or a four-petal flower after extending out of the sheath tube, and can effectively catch and fix the calculus.

The utility model discloses simple structure, convenient to use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of the self-locking disposable ureteral calculus removal basket of the present invention.

Fig. 2 is a schematic view of the handle structure of the self-locking disposable ureteral calculus removal basket of the present invention.

Fig. 3 is the structural schematic diagram of the self-lockable disposable ureter calculus removing basket in the unlocked state.

Fig. 4 is a schematic structural view of the locking state of the self-locking disposable ureteral calculus removal basket of the present invention.

The designations in the figures mean:

1-handle, 11-first shell, 12-second shell, 2-sheath tube, 3-basket part, 4-chute, 5-sliding key, 6-self-locking mechanism, 61-key, 62-swinging arm, 63-elastic element, 7-through hole, 100-cylinder and 200-cylinder hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It is to be understood that the terms "upper", "lower", "left", "right", and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, which is for convenience of description only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting of this patent. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise. Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may for example be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In order to explain the technical solution of the present invention, the following detailed description is made with reference to the specific drawings and examples.

Referring to fig. 1-4, an embodiment of the present invention provides a self-locking disposable ureteral calculus extraction basket, which includes a handle 1, a sheath tube 2 and a basket portion 3 connected in sequence, wherein the handle 1 is provided with a chute 4 along a length direction thereof, and the handle 1 is further provided with a sliding key 5 and a self-locking mechanism 6; the sliding key 5 is arranged in the sliding groove 4 in a sliding manner; the self-locking mechanism 6 is arranged on the opposite side of the sliding key 5 and used for preventing the sliding key 5 from sliding in the sliding groove 4; one end of the basket part 3 passes through the sheath pipe 2 and is connected with the sliding key 5.

It should be noted that one end of the basket part 3 passes through the sheath tube 2 and is arranged on the sliding key 5, the sliding key 5 can freely slide in the chute 4, and the basket part 3 can be controlled to contract or extend out of the sheath tube 2 by controlling the sliding key 5, so that the basket part 3 can be conveniently controlled to collect the concretes.

This embodiment is on present disposable ureter gets stone basket basis, adds self-locking mechanism 6, and after getting the stone basket cover and getting the calculus, prevent slide key 5 through self-locking mechanism 6 and drive 3 slips of basket portion for the entangling calculus that basket portion 3 can be better does not drop, thereby has avoided the doctor to need the position of long-time accurate grasp getting the stone basket in the operation, has reduced the hand action, and labour saving and time saving improves work efficiency.

As a further preference of the present embodiment, the handle 1 includes a first housing 11 and a second housing 12, and the first housing 11 and the second housing 12 form the handle 1 having a receiving cavity.

As shown in fig. 2, in an embodiment of the present invention, a plurality of cylinders 100 are uniformly disposed in the first housing 11, a plurality of cylinder holes 200 are uniformly disposed in the second housing 12, and the positions of the cylinders 100 and the cylinder holes 200 correspond to each other one by one. When the first shell 11 and the second shell 12 of the handle 1 are combined, the raised cylinder 100 on the first shell 11 is correspondingly inserted into the cylinder hole 200 on the second shell 12, so that the two shells are tightly combined together to achieve the fixing function; when disassembling, the cylinder 100 will break, preventing the repeated use from causing the cross infection of the patient.

As a further preferred embodiment, a through hole 7 is further formed in one side of the handle 1 opposite to the sliding chute 4, and the self-locking mechanism 6 is matched with the through hole 7.

In a specific embodiment of the present invention, the self-locking mechanism 6 includes a button 61, a swing arm 62 and an elastic element 63, and the button 61 is rotatably disposed in the through hole 7; one end of the swing arm 62 is rotatably connected with the key 61, and the other end of the swing arm is contacted with the elastic element 63; the elastic member 63 is disposed opposite to the slide key 5.

It should be noted that, the utility model discloses a disposable ureteroscope calculus extraction basket of auto-lock can prevent sliding key 5 to slide in spout 4 through mutually supporting of button 61, swing arm 62 and elastic element 63 to the locking calculus extraction basket. As shown in fig. 3 to 4, a hole through which the protruding cylindrical portion of the cylindrical hole 200 can pass is formed in the key 61, the key 61 can be fixed in the through hole 7 and can rotate around the cylindrical portion 100 by the mutual fit between the cylindrical portion 100 of the first housing 11 and the cylindrical portion 200 of the second housing 12, when the key 61 does not work, the swing arm 62 is in an inclined state without applying pressure to the elastic element 63, a certain distance exists between the elastic element 63 and the sliding key 5, the sliding key 5 can freely slide in the sliding groove 4, and the contraction or extension state of the basket portion 3 can be adjusted arbitrarily; when the key 61 is pressed, the key 61 applies pressure to the swing arm 62, the swing arm 62 is in a vertical state, and at the same time, downward pressure is applied to the elastic element 63, and the elastic element 63 contacts the sliding key 5 and transmits the pressure to the sliding key 5, so that the sliding key 5 cannot slide and reaches a locking state. In this embodiment, the elastic element 63 may preferably be a spring plate, and the spring plate is fixedly disposed in the second housing 12.

As a further preferred embodiment of the present invention, the basket portion 3 is a basket in the shape of a "three-petal flower" or a "four-petal flower", each "petal" of the "three-petal flower" or the "four-petal flower" is formed by bending an independent basket wire, and the top portion thereof is in the shape of an arc. The basket part 3 of the utility model is in the shape of three-petal flower or four-petal flower after extending out of the sheath tube 2, which is convenient for catching and fixing the calculus.

In one embodiment of the present invention, the basket wire is made of nitinol. The utility model discloses a basket portion 3 adopts nickel titanium alloy silk material, can still have superstrong elasticity, memory when guaranteeing certain hardness, can freely stretch out and draw back in sheath pipe 2 as required, makes basket portion 3 more smoothly pass through ureter and external working channel, has effectively avoided basket portion 3 to take place to damage because of rubbing the touching with the ureter pipeline.

In one embodiment of the present invention, each of the petals of the basket portion 3 is identical in shape and size.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to assist in understanding the methods and their core concepts. It should be noted that there are infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that various improvements, decorations or changes can be made without departing from the principles of the present invention, and the technical features can be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other contexts without modification may be viewed as within the scope of the invention.

Claims (7)

1. A disposable ureter calculus removing basket capable of self-locking comprises a handle, a sheath tube and a basket part which are sequentially connected, and is characterized in that a sliding groove is formed in the handle along the length direction of the handle, and a sliding key and a self-locking mechanism are further arranged on the handle; the sliding key is arranged in the sliding groove in a sliding manner; the self-locking mechanism is arranged on the opposite side of the sliding key and used for preventing the sliding key from sliding in the sliding groove; one end of the basket part penetrates through the sheath pipe and is connected with the sliding key.

2. The self-locking disposable ureteral calculus removal basket according to claim 1, wherein a through hole is further formed in one side of the handle opposite to the sliding groove, and the self-locking mechanism is matched with the through hole.

3. The self-lockable disposable ureteral calculus removal basket according to claim 2, wherein the self-locking mechanism comprises a key, a swing arm and an elastic element, the key is rotatably disposed in the through hole; one end of the swing arm is rotatably connected with the key, and the other end of the swing arm is contacted with the elastic element; the elastic element is arranged opposite to the sliding key.

4. The self-lockable disposable ureteral stone extraction basket according to claim 1, wherein the handle comprises a first shell and a second shell, and the first shell and the second shell are connected to form a handle with a receiving cavity.

5. The self-locking disposable ureteral calculus extraction basket according to claim 4, wherein a plurality of cylinders are uniformly arranged in the first shell, a plurality of cylinder holes are uniformly arranged in the second shell, and the positions of the cylinders and the positions of the cylinder holes are in one-to-one correspondence.

6. The self-locking disposable ureteral calculus-removing basket as claimed in claim 1, wherein the basket part is a basket in the shape of a "three-petal flower" or a "four-petal flower", each "petal" of the "three-petal flower" or the "four-petal flower" is formed by bending an independent basket wire, and the top of the basket wire is arc-shaped.

7. The self-lockable disposable ureteral calculus removal basket according to claim 6, wherein each "petal" of the basket section has the same shape and size.

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