CN112790828B

CN112790828B - Thrombus taking device for preventing thrombus from falling off

Info

Publication number: CN112790828B
Application number: CN202011625361.7A
Authority: CN
Inventors: 袁冰; 王茂强; 张金龙; 管阳; 孙学栋
Original assignee: First Medical Center of PLA General Hospital
Current assignee: First Medical Center of PLA General Hospital
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-09-30
Anticipated expiration: 2040-12-31
Also published as: CN112790828A

Abstract

The invention provides a thrombus removal device for preventing thrombus from falling off, which relates to the technical field of medical instruments and comprises a conveying pipe and a guide wire arranged in the conveying pipe; the top end of the conveying pipe is fixedly provided with a spherical picking net, the top end of the conveying pipe is inwards sunken to be provided with a conical cover, and the spherical picking net is positioned in the conical cover at an initial position; the middle of the conical cover is provided with a hole for a guide wire to pass through, and the top of the guide wire is fixedly connected with the spherical pickup net. The invention is simple in operation, can prevent thrombus from sliding, can completely take out thrombus, and effectively improves the working efficiency of medical personnel.

Description

Thrombus taking device for preventing thrombus from falling off

Technical Field

The invention relates to the technical field of medical instruments, in particular to a thrombus taking device for preventing thrombus from falling off.

Background

Thrombi are solid masses formed by coagulation of blood or aggregation of certain constituents in blood in the heart and blood vessels of a living body. In the variable fluid-dependent type, thrombus is composed of insoluble fibrin, deposited platelets, accumulated leukocytes and entrapped erythrocytes, and thrombus formation is a multifactorial process of change in which a set of genetic and environmental factors interact and interact. The clinical common thrombus patients are mainly characterized by familial inheritance, recurrent attacks, symptom severity, abnormality of thrombus formation sites and younger onset time.

Therefore, in order to prevent serious harm caused by thrombus falling, the thrombus should be taken out in time, the existing thrombus taking device has low efficiency, and thrombus falling and incomplete thrombus taking are easily caused during thrombus taking.

Disclosure of Invention

The invention aims to solve the problem that thrombus cannot be efficiently and completely taken out due to the defects in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: a thrombus removal device for preventing thrombus from falling off comprises a conveying pipe and a guide wire arranged in the conveying pipe; the top end of the conveying pipe is fixedly provided with a spherical picking net, the top end of the conveying pipe is inwards sunken to be provided with a conical cover, and the spherical picking net is positioned in the conical cover at an initial position; the middle of the conical cover is provided with a hole for a guide wire to pass through, and the top of the guide wire is fixedly connected with the spherical pickup net.

The operation that the picking net extends out and retracts under the action of the guide wire under the combined action of the conical cover can be realized through the spherical picking net and the conical cover, so that the thrombus is timely sealed in the conical cover.

In a preferred embodiment of the present invention, an end of the guide wire is fixedly connected to the push rod mechanism, and an outer wall of an end of the delivery tube is provided with a grip portion.

The operation of the bolt taking device can be conveniently realized through the push rod mechanism and the holding part, and the operation is simple.

The invention further comprises an operating handle, wherein the push rod mechanism is arranged in the operating handle, and a tension adjusting mechanism is arranged in the push rod mechanism; the push rod mechanism pushes the guide wire to feed, and the tension adjusting mechanism provides reverse elastic force for the push rod mechanism.

The push rod can be automatically reset through the combined action of the tension adjusting mechanism and the push rod mechanism, and medical workers can repeatedly stretch and retract to pick up the net only by pressing the tail end of the push rod.

In a preferred embodiment of the invention, the first connecting rod of the operating handle extends out of the operating handle, and the front end of the connecting rod is fixed with the tail end of the guide wire; the first connecting rod is connected with a spring of the tension adjusting mechanism in the operating handle; the operating handle further comprises a push handle, and the push handle is fixedly connected with the first connecting rod in the operating interior.

According to a preferred embodiment of the invention, the tension adjusting mechanism comprises a spring, a rubber sleeve is sleeved on the outer surface of the spring, a first connecting block is fixed at the bottom of the spring, a lead screw penetrates through the outer surface of one side of the first connecting block in a sliding manner, two ends of the lead screw extend to the outside of an annular fixing plate, an annular connecting plate is arranged on the outer surface of the operating handle, four first sliding grooves are formed in the outer surface of the annular connecting plate at equal intervals along the circumferential direction, an annular fixing plate slides on the outer surface of the annular connecting plate, four second connecting blocks are fixed on the inner surface wall of the annular fixing plate at equal intervals along the circumferential direction, the outer surface of one side of each of the four second connecting blocks is embedded in the four first sliding grooves in a sliding manner, and hollow cylinders are connected to the outer surface of the lead screw close to the edges of the two ends in a threaded manner.

Can realize tensile size through tension adjustment mechanism's design and adjust, also can realize the regulation of the dynamics that resets simultaneously, when tension is adjusted great, can reset very fast, resets to initial position simultaneously, when tension is adjusted less, can reset slowly, resets to half simultaneously, 2/3 wait position department, can carry out reasonable regulation as required.

In a preferred embodiment of the present invention, the push rod mechanism comprises: the bottom end of the first connecting rod extends into the connecting cylinder, rectangular holes are formed in the peripheral outer surface of the connecting cylinder, and third connecting blocks are fixed on the outer surfaces of the two sides of the first connecting rod, close to the edges of the bottom end; the tops and the bottoms of the two third connecting blocks slide in the two rectangular holes, and the outer surfaces of one sides of the two third connecting blocks extend to the outsides of the two rectangular holes;

the outer surfaces of one side of each of the two third connecting blocks are welded with a fixed block, the inner surface walls of the two sides of the operating handle are provided with second sliding grooves, and the outer surfaces of the two fixed blocks are embedded in the two second sliding grooves in a sliding manner;

the outer surface of the bottom of each third connecting block, which is close to one side, is fixedly provided with a second connecting rod, the bottoms of the second connecting rods extend to the outside of the operating handle, and the top end of each spring is fixed at the bottom of the corresponding first connecting rod.

In a preferred embodiment of the present invention, the push handle includes: a first fixing plate is fixed between the bottoms of the two third connecting blocks, an arc connecting block is fixed at the bottom of the first fixing plate, and a second fixing plate is fixed at the bottom of the arc connecting block.

Compared with the prior art, the invention has the advantages and positive effects that,

1. according to the invention, the push handle is pulled up and down to drive the first connecting rod to move, the first connecting rod can drive the spherical picking net to move, the bottom of the spherical picking net is placed in front of thrombus, and the push handle is pulled to make the spherical picking net stretch and contract, so that the thrombus is fixed into the conical cover, the purpose of taking out the thrombus is achieved, the operation is simple and rapid, the thrombus can be prevented from sliding, the thrombus can be completely taken out, and the working efficiency of medical personnel is effectively improved.

2. According to the medical nursing staff, the spring is fixed at the bottom end of the first connecting rod and can provide a certain damping force when the thrombus is taken, the elastic force of the spring can be adjusted by moving the first connecting block fixed at the bottom of the spring, the elastic force can be adjusted according to different conditions, and the working efficiency of the medical nursing staff can be effectively improved.

Drawings

FIG. 1 is a schematic sectional front view of an embolectomy device for preventing thrombus from falling off according to the present invention;

FIG. 2 is an enlarged schematic view of the invention at A;

FIG. 3 is a schematic top view of the thrombus removal device for preventing thrombus from falling off according to the present invention;

FIG. 4 is a schematic structural diagram of an embolectomy device for preventing thrombus from falling off according to the present invention.

Illustration of the drawings:

1. a conical cover; 2. an operating handle; 3. a push rod mechanism; 301. a spherical pickup net; 302. a first connecting rod; 305. a second chute; 306. a rectangular hole; 307. a third connecting block; 308. a fixed block; 309. A connecting cylinder; 310. a second connecting rod; 311. a first fixing plate; 312. a circular arc connecting block; 313. a second fixing plate; 4. a tension adjusting mechanism; 401. a rubber sleeve; 402. a spring; 403. an annular connecting plate; 404. an annular fixed plate; 405. a screw rod; 406. a first connection block; 407. a hollow cylinder; 408. a first chute; 409. a second connecting block; 5. a guide wire; 6. a delivery pipe.

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. 1-3, the present invention provides a technical solution: a thrombus removal device for preventing thrombus from falling off comprises an operating handle 2, wherein a push rod mechanism 3 is arranged inside the operating handle 2, and a tension adjusting mechanism 4 is arranged inside the push rod mechanism 3;

a first connecting rod 302 of the operating handle 2 extends out of the operating handle, and the front end of the connecting rod is fixed with the tail end of the guide wire 5; the first connecting rod 302 is connected to a spring 402 of the tension adjusting mechanism 4 inside the operating handle; the operating handle 2 further comprises a push handle which is fixedly connected with the first connecting rod 302 in the operating interior;

the guide wire 5 is inserted into the delivery pipe 6, the top end of the delivery pipe 6 is fixed with a spherical pickup net 301, and the interior of the spherical pickup net 301 is fixedly connected with the top end of the guide wire; the top end of the conveying pipe is inwards sunken to be provided with a conical cover 1, and the spherical pickup net 301 is positioned inside the conical cover 1 at the initial position.

Tension adjustment mechanism 4 includes spring 402, the outer surface cover of spring 402 is equipped with rubber sleeve 401, the bottom of spring 402 is fixed with first connecting block 406, one side surface of first connecting block 406 slides and runs through there is the lead screw 405, and the both ends of lead screw 405 all extend to the outside of annular fixed plate 404, the surface of operating handle 2 is provided with annular connecting plate 403, four first spouts 408 have been seted up along the circumferencial direction equidistance to the surface of annular connecting plate 403, annular fixed plate 404 is slided to the surface of annular connecting plate 403, the interior table wall of annular fixed plate 404 is fixed with four second connecting blocks 409 along the circumferencial direction equidistance, one side surface of four second connecting blocks 409 slides and inlays and establish in the inside at four first spouts 408, the surface of lead screw 405 is close to the equal threaded connection of both ends edge and has hollow cylinder 407.

The bottom of first connecting rod 302 extends to the inside of connecting cylinder 309, and rectangular hole 306 has all been seted up to the surface all around of connecting cylinder 309, and the both sides surface of first connecting rod 302 all is fixed with third connecting block 307 near the bottom edge, and the length of rectangular hole 306 can restrict the movement distance of third connecting block 307.

The top and the bottom of the two third connecting blocks 307 slide in the two rectangular holes 306, and the outer surface of one side of the two third connecting blocks 307 extends to the outside of the two rectangular holes 306, because the two third connecting blocks 307 slide in the two rectangular holes 306, the smoothness during operation can be improved, and therefore the working efficiency is improved.

Fixed block 308 has all been welded to one side surface of two third connecting blocks 307, and second spout 305 has all been seted up to the table wall in the both sides of operating handle 2, and the surface of two fixed blocks 308 all slides and inlays the inside of establishing at two second spouts 305, can strengthen the steadiness of device, reaches laborsaving effect.

The bottom of two third connecting blocks 307 is close to one side surface and all is fixed with second connecting rod 310, and the bottom of two second connecting rods 310 all extends to operating handle 2's outside, and the top of spring 402 is fixed in the bottom of head rod 302, through installation spring 402, can carry out automatic the retrieving to spherical pickup net 301, great improvement work efficiency.

Be fixed with first fixed plate 311 between the bottom of two third connecting blocks 307, the bottom of first fixed plate 311 is fixed with circular arc connecting block 312, and the bottom of circular arc connecting block 312 is fixed with second fixed plate 313, can be very convenient let medical personnel press from both sides and get circular arc connecting block 312, get the work of tying, the effectual work efficiency that has improved medical personnel.

The working principle of the embodiment is as follows: when using this thrombectomy device, at first according to shown in fig. 1, fig. 2 and fig. 3, when taking the thrombectomy, remove lead screw 405 earlier, because lead screw 405 runs through inside first connecting block 406, can drive first connecting block 406 and remove when removing lead screw 405, first connecting block 406 can stretch spring 402, and the top of spring 402 is fixed in the bottom of first connecting rod 302, thereby can make the elasticity of spring 402 increase, make first connecting rod 302 can be faster pulled back by spring 402, through the damping force of screwing up hollow cylinder 407 locking spring.

Then, be fixed with the seal wire 5 on the top of head rod 302, seal wire 5 is connected with spherical pick-up net 301 through conveyer pipe 6, spherical pick-up net 301 can be collected the thrombus, the thrombus of collecting is fixed to be pullback in the effect through spring 402, because the bottom that the spherical pick-up net 301 was fixed with toper cover 1, can close the processing to the bottom that the spherical pick-up net 301, thereby accomplish and get the work of tying, not only simple swift in the operation, can also prevent that the thrombus from sliding, can be complete take out the thrombus, medical personnel's work efficiency has been improved effectively.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. The utility model provides a prevent thrombectomy device that thrombus drops which characterized in that: comprises a delivery pipe (6) and a guide wire (5) arranged in the delivery pipe; a spherical pickup net (301) is fixed at the top end of the conveying pipe (6), a conical cover (1) is arranged at the top end of the conveying pipe in an inwards-concave mode, and the spherical pickup net (301) is located inside the conical cover (1) at the initial position; a hole for a guide wire (5) to pass through is formed in the middle of the conical cover (1), and the top of the guide wire is fixedly connected with the spherical pickup net (301);

the end part of the guide wire (5) is fixedly connected with the push rod mechanism (3), and the outer wall of the end part of the conveying pipe (6) is provided with a holding part;

the tension adjusting mechanism is characterized by further comprising an operating handle (2), the push rod mechanism (3) is arranged inside the operating handle (2), and the tension adjusting mechanism (4) is arranged inside the push rod mechanism (3); the push rod mechanism (3) pushes the guide wire (5) to feed, and the tension adjusting mechanism (4) provides reverse elastic force for the push rod mechanism (3);

a first connecting rod (302) of the operating handle (2) extends out of the operating handle, and the front end of the first connecting rod is fixed with the tail end of the guide wire (5); the first connecting rod (302) is connected with a spring (402) of the tension adjusting mechanism (4) in the operating handle; the operating handle (2) further comprises a push handle, and the push handle is fixedly connected with the first connecting rod (302) in the operating handle (2);

the tension adjusting mechanism (4) comprises a spring (402), a rubber sleeve (401) is sleeved on the outer surface of the spring (402), a first connecting block (406) is fixed at the bottom of the spring (402), a screw rod (405) penetrates through the outer surface of one side of the first connecting block (406) in a sliding manner, two ends of the screw rod (405) extend to the outside of an annular fixing plate (404), an annular connecting plate (403) is arranged on the outer surface of the operating handle (2), four first sliding grooves (408) are formed in the outer surface of the annular connecting plate (403) at equal intervals along the circumferential direction, the annular fixing plate (404) slides on the outer surface of the annular connecting plate (403), four second connecting blocks (409) are fixed on the inner surface wall of the annular fixing plate (404) at equal intervals along the circumferential direction, and the outer surfaces of one sides of the four second connecting blocks (409) are embedded in the four first sliding grooves (408) in a sliding manner, the outer surface of the screw rod (405) is connected with hollow cylinders (407) close to the edges of the two ends in a threaded manner.

2. The thrombus removal device according to claim 1, wherein: the push rod mechanism is as follows: the bottom end of the first connecting rod (302) extends into the connecting cylinder (309), rectangular holes (306) are formed in the peripheral outer surface of the connecting cylinder (309), and third connecting blocks (307) are fixed on the outer surfaces of the two sides of the first connecting rod (302) close to the bottom end edges; the top and the bottom of the two third connecting blocks (307) slide inside the two rectangular holes (306), and one side outer surfaces of the two third connecting blocks (307) extend to the outside of the two rectangular holes (306);

the outer surfaces of one side of each of the two third connecting blocks (307) are welded with a fixing block (308), the inner surface walls of the two sides of the operating handle (2) are provided with second sliding grooves (305), and the outer surfaces of the two fixing blocks (308) are embedded in the two second sliding grooves (305) in a sliding manner;

and second connecting rods (310) are fixed on the outer surfaces of the bottoms of the two third connecting blocks (307) close to one side, the bottoms of the two second connecting rods (310) extend to the outside of the operating handle (2), and the top ends of the springs (402) are fixed at the bottom of the first connecting rod (302).

3. The thrombus removal device according to claim 2, wherein: the push handle is as follows: a first fixing plate (311) is fixed between the bottoms of the two third connecting blocks (307), an arc connecting block (312) is fixed at the bottom of the first fixing plate (311), and a second fixing plate (313) is fixed at the bottom of the arc connecting block (312).