CN216495561U

CN216495561U - Manual controllable capture device

Info

Publication number: CN216495561U
Application number: CN202123017405.0U
Authority: CN
Inventors: 安涛; 阮娜
Original assignee: Zhuhai Peoples Hospital
Current assignee: Zhuhai Peoples Hospital
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-05-13
Anticipated expiration: 2031-12-03

Abstract

The utility model relates to the technical field of medical instruments, in particular to a manually controllable catcher which comprises an outer sleeve, an inner sleeve and a steel wire rope, wherein the outer sleeve and a sliding end cap are both in a hollow tubular shape, the diameter of the inner sleeve is smaller than that of the outer sleeve, the inner sleeve is arranged inside the outer sleeve, the right side end part of the outer sleeve is also provided with the sliding end cap, and the right side end part of the sliding end cap is provided with a guide rod. When the device is used, the sliding end cap is pinched and slightly rotated, the sliding end cap can drive the inner sleeve to rotate in the outer sleeve under the limiting rotation matching of the limiting ring sleeve and the annular limiting groove and the action of the bearing, and simultaneously, the steel wire rope with the pear-shaped left side of the outer sleeve can be driven to change the angle under the limiting action of the mounting end, so that the angle adjustment of the steel wire rope can be effectively realized, the device can be conveniently caught at the optimal position, the inner wall of a blood vessel of a patient is effectively prevented from being damaged, and the safety during operation is improved.

Description

Manual controllable capture device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a manually controllable catcher.

Background

With the continuous popularization and promotion of interventional diagnosis and treatment technologies and the wide application of intravascular implant technologies such as central venous catheters, venous transfusion ports, picc and the like, the breakage of interventional instruments and the falling of catheters occur sometimes, or foreign matters are generated in blood vessels after trauma of patients, and then the foreign matters need to be taken out.

At present, a conventional gooseneck catcher and a three-ring-shaped foreign body snare are used for catching a head end of a foreign body and taking out the foreign body by using a snare device, but if the head end of the foreign body is embedded into a tiny blood vessel, thrombus or is close to a blood vessel wall, the conventional snare device cannot catch the foreign body at the optimal position, great difficulty is caused to operation, and even the blood vessel is damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a manually controllable catcher, which solves the problems that the conventional snare device cannot catch at the optimal position when the head end of a foreign body proposed in the background technology is embedded into a tiny blood vessel, thrombus or is close to the blood vessel wall, so that great difficulty is caused to the operation, and even the blood vessel is damaged.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a manual controllable ware of arresting, includes outer tube, interior sleeve pipe and wire rope, outer tube and slip end cap all are hollow tubulose, and interior sheathed tube diameter is less than the diameter of outer tube, and interior sleeve pipe sets up in the inside of outer tube, outer tube right side tip still is provided with the slip end cap, the right side tip of slip end cap is provided with the guide arm, interior sheathed tube inside is provided with wire rope, and wire rope extends to the left end outside of outer tube.

Preferably, two sets of bearings are symmetrically fixed on two sides of the inner wall surface of the outer sleeve, the inner sleeve is fixed on the inner wall surfaces of the two sets of bearings, the inner sleeve is rotatably connected with the inner wall surface of the outer sleeve through the two sets of bearings, and the end part of the right side of the inner sleeve extends out of the outer sleeve.

Preferably, the end part of the left side of the inner sleeve is fixed with a mounting end, one side of the mounting end is opened with a sliding hole communicated with the inside of the inner sleeve, one end of the steel wire rope is fixed on the left surface of the mounting end, the other end of the steel wire rope penetrates through the sliding hole in a sliding manner and extends to the right end of the inner sleeve, and part of the steel wire rope exposed from the left side of the outer sleeve is in a pear-shaped ring shape.

Preferably, the end hole has been seted up to slip end cap left side tip surface, outer tube right side tip block is inside the end hole, interior sleeve pipe right side tip fixed connection is in end hole inside wall surface, the outer tube is located the surface in the end hole and has seted up annular spacing groove, end hole inner wall surface and annular spacing groove corresponding position department are fixed with spacing ring cover, and spacing slip block of spacing ring cover is in annular spacing inslot portion.

Preferably, the surface of the right end of the sliding end cap is provided with a guide hole, the cross section of the inner part of the guide hole is in a step shape, the guide rod is inserted into the guide hole in a sliding manner, the other end of the guide rod extends to the right side of the sliding end cap, a limiting disc in limiting sliding connection with the surface of the inner wall of the guide hole is fixed at the end part of the guide rod in the guide hole, the right end of the steel wire rope is fixedly connected with the side surface of the limiting disc, and the outer end part of the guide rod is fixed with a handle.

Compared with the prior art, the utility model has the beneficial effects that:

1. when the device is used, the sliding end cap is held and slightly rotated, the sliding end cap can drive the inner sleeve to rotate in the outer sleeve under the limiting rotation matching of the limiting ring sleeve and the annular limiting groove and the action of the bearing, and simultaneously, the steel wire rope with the pear-shaped left side of the outer sleeve can be driven to change the angle under the limiting action of the mounting end, so that the angle adjustment of the steel wire rope can be effectively realized, the device can be conveniently grabbed at the optimal position, the inner wall of a blood vessel of a patient is effectively prevented from being damaged, and the safety during operation is improved;

2. this device will be by the pyriform ring cover that wire rope formed when using on the foreign matter surface, hold between the fingers the handle of holding between the fingers afterwards and stimulate the guide arm, the guide arm can slide to the outside along the guide hole, and then traction wire rope takes place to slide for the sliding hole, form the pyriform annular dimension by wire rope this moment and reduce, and then can firmly entangle the foreign matter and snatch, the condition of avoiding appearing droing, at this in-process, because spacing effect of spacing dish, can effectively prevent to appear the in-process of pulling the guide arm and appear excessively removing the condition of deviating from the guide hole port.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the outer sleeve according to the present invention;

FIG. 3 is a schematic view of the installation tip structure of the present invention;

fig. 4 is a schematic view of the installation of the sliding end cap structure of the present invention.

In the figure: 1. an outer sleeve; 101. a bearing; 102. an annular limiting groove; 2. an inner sleeve; 201. installing an end head; 202. a slide hole; 3. a sliding end cap; 301. an end hole; 302. a spacing ring sleeve; 303. a guide hole; 4. a guide bar; 401. a limiting disc; 402. a handle knob; 5. a steel cord.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention is shown:

a manual controllable catcher comprises an outer sleeve 1, an inner sleeve 2 and a steel wire rope 5, wherein the outer sleeve 1 and a sliding end cap 3 are both in a hollow tubular shape, the diameter of the inner sleeve 2 is smaller than that of the outer sleeve 1, the inner sleeve 2 is arranged inside the outer sleeve 1, the sliding end cap 3 is further arranged at the right side end of the outer sleeve 1, a guide rod 4 is arranged at the right side end of the sliding end cap 3, the steel wire rope 5 is arranged inside the inner sleeve 2, and the steel wire rope 5 extends to the outside of the left end of the outer sleeve 1;

furthermore, two groups of bearings 101 are symmetrically fixed on two sides of the inner wall surface of the outer sleeve 1, the inner sleeve 2 is fixed on the inner wall surfaces of the two groups of bearings 101, the inner sleeve 2 is rotatably connected with the inner wall surface of the outer sleeve 1 through the two groups of bearings 101, the right end part of the inner sleeve 2 extends out of the outer sleeve 1, the arrangement of the bearings 101 facilitates the relative rotation of the inner sleeve 2 and the outer sleeve 1, and meanwhile, the angle adjustment of the steel wire rope 5 is facilitated;

furthermore, an installation end 201 is fixed at the left end of the inner sleeve 2, a sliding hole 202 communicated with the inside of the inner sleeve 2 is formed in one side of the installation end 201, one end of a steel wire rope 5 is fixed on the left surface of the installation end 201, the other end of the steel wire rope 5 penetrates through the sliding hole 202 in a sliding mode and extends to the right end of the inner sleeve 2, the steel wire rope 5 exposed out of the left side of the outer sleeve 1 is in a pear-shaped ring shape, one end of the steel wire rope 5 is fixed on the surface of the sliding hole 202, the other end of the steel wire rope 5 penetrates through the sliding hole 202 and can slide relatively, and the size of the pear-shaped ring formed by the steel wire rope 5 can be adjusted, so that foreign matters can be conveniently grabbed;

furthermore, an end hole 301 is formed in the surface of the left end of the sliding end cap 3, the right end of the outer sleeve 1 is clamped in the end hole 301, the right end of the inner sleeve 2 is fixedly connected to the surface of the inner side wall of the end hole 301, an annular limiting groove 102 is formed in the outer surface of the outer sleeve 1 in the end hole 301, a limiting ring sleeve 302 is fixed on the position, corresponding to the annular limiting groove 102, of the surface of the inner wall of the end hole 301, the limiting ring sleeve 302 is in limiting sliding clamping in the annular limiting groove 102, and under the limiting sliding matching effect of the annular limiting groove 102 and the limiting ring sleeve 302, the sliding end cap 3 can be more stable in rotation;

furthermore, a guide hole 303 is formed in the surface of the right side end of the sliding end cap 3, the cross section of the inside of the guide hole 303 is stepped, the guide rod 4 is slidably inserted into the guide hole 303, the other end of the guide rod 4 extends to the right side of the sliding end cap 3, a limiting disc 401 which is in limiting sliding connection with the surface of the inner wall of the guide hole 303 is fixed at the end of the guide rod 4 located in the guide hole 303, the right side end of the steel wire rope 5 is fixedly connected with the side surface of the limiting disc 401, and a knob 402 is fixed at the outer end of the guide rod 4, so that when the guide rod 4 is pulled through the knob 402, due to the limiting effect of the limiting disc 401, the situation that excessive movement is separated from the port of the guide hole 303 in the process of pulling the guide rod 4 can be effectively prevented;

further, the outer fixed surface of the sliding end cap 3 is sleeved with a rubber pad, anti-slip lines are arranged on the surface of the rubber pad, friction force between the sliding end cap 3 and fingers is increased due to the arrangement of the rubber pad and the anti-slip lines, and therefore the situation that slipping occurs when the sliding end cap 3 rotates can be effectively avoided.

The working principle is as follows: when the device is used, the left end of the device is led into a blood vessel, the device is slowly inserted into a required sleeving object, then the sliding end cap 3 is pinched and slightly rotated, under the limiting rotation fit of the limiting ring sleeve 302 and the annular limiting groove 102 and the action of the bearing 101, the sliding end cap 3 can drive the inner sleeve 2 to rotate in the outer sleeve 1, meanwhile, under the limiting action of the mounting end 201, the steel wire rope 5 in a pear shape at the left side of the outer sleeve 1 can be driven to change the angle, further, the angle adjustment of the steel wire rope 5 can be effectively realized, after the foreign object is aligned, the pear-shaped ring formed by the steel wire rope 5 is sleeved on the surface of the foreign object, then the pinch handle 402 is pinched and the guide rod 4 is pulled, the guide rod 4 can slide outwards along the guide hole 303, further, the steel wire rope 5 is pulled to slide relative to the sliding hole 202, at the moment, the pear-shaped annular size formed by the steel wire rope 5 is reduced, and the foreign object can be caught, in the process, due to the limiting effect of the limiting disc 401, the situation that excessive movement is separated from the port of the guide hole 303 in the process of pulling the guide rod 4 can be effectively prevented.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a manual controllable ware of arresting, includes outer tube (1), interior sleeve pipe (2) and wire rope (5), its characterized in that: outer tube (1) and slip end cap (3) all are hollow tubulose, and the diameter of interior sleeve pipe (2) is less than the diameter of outer tube (1), and interior sleeve pipe (2) sets up in the inside of outer tube (1), outer tube (1) right side tip still is provided with slip end cap (3), the right side tip of slip end cap (3) is provided with guide arm (4), the inside of interior sleeve pipe (2) is provided with wire rope (5), and wire rope (5) extend to the left end outside of outer tube (1).

2. A manually controllable grabber as claimed in claim 1, characterized in that: two sets of bearings (101) are symmetrically fixed on two sides of the inner wall surface of the outer sleeve (1), the inner sleeve (2) is fixed on the inner wall surfaces of the two sets of bearings (101), the inner sleeve (2) is rotatably connected with the inner wall surface of the outer sleeve (1) through the two sets of bearings (101), and the end part of the right side of the inner sleeve (2) extends out of the outer sleeve (1).

3. A manually controllable grabber as claimed in claim 2, characterized in that: interior sleeve pipe (2) left side tip is fixed with installation end (201), installation end (201) one side is opened and is had and interior communicating slide opening (202) of sleeve pipe (2) inside, wire rope (5) one end is fixed in installation end (201) left side surface, and wire rope (5) other end slides and runs through behind slide opening (202) and extend to the right-hand member of interior sleeve pipe (2), and partial wire rope (5) that expose from outer tube (1) left side are the pear shape circle.

4. A manually controllable grabber as claimed in claim 3, characterized in that: end hole (301) have been seted up to slip end cap (3) left side tip surface, outer tube (1) right side tip block is inside end hole (301), interior sleeve pipe (2) right side tip fixed connection is in end hole (301) inside wall surface, annular spacing groove (102) have been seted up to the surface that outer tube (1) is located end hole (301), end hole (301) inner wall surface is fixed with spacing ring cover (302) with annular spacing groove (102) corresponding position department, and spacing slip block of spacing ring cover (302) is inside annular spacing groove (102).

5. A manually controllable grabber as claimed in claim 4, characterized in that: guide hole (303) have been seted up on the right side tip surface of slip end cap (3), and guide hole (303) internal cross section is the echelonment, guide arm (4) slide insert locate inside guide hole (303), and the other end of guide arm (4) extends and establishes to the right side of slip end cap (3), the tip that guide arm (4) are located guide hole (303) is fixed with spacing dish (401) with guide hole (303) inner wall surface spacing sliding connection, and the right side tip of wire rope (5) and spacing dish (401) side surface fixed connection, the outer tip of guide arm (4) is fixed with holds between the fingers handle (402).

6. A manually controllable grabber as claimed in claim 5, characterized in that: the outer surface of the sliding end cap (3) is fixedly sleeved with a rubber pad, and anti-skidding lines are formed in the surface of the rubber pad.