CN217311353U

CN217311353U - Novel VA-ECMO collateral branch arterial sheath

Info

Publication number: CN217311353U
Application number: CN202221050527.1U
Authority: CN
Inventors: 曾帆; 黎嘉嘉; 刘蓉安; 雷雨; 兰蕴平
Original assignee: Sichuan Peoples Hospital of Sichuan Academy of Medical Sciences
Current assignee: Sichuan Peoples Hospital of Sichuan Academy of Medical Sciences
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-08-30
Anticipated expiration: 2032-04-20

Abstract

The utility model relates to a collateral branch artery sheath technical field just discloses a novel VA-ECMO collateral branch artery sheath, including unable adjustment base, the auxiliary hole has been seted up to unable adjustment base's inside, the bottom of auxiliary hole is fixed respectively and is equipped with spacing spring and dead lever, sliding connection has movable footstock on the dead lever, unable adjustment base's tip and activity footstock fixed connection are kept away from to spacing spring. This novel VA-ECMO collateral branch arterial sheath, through setting up unable adjustment base and movable footstock structure with the inside that the two was wrapped up into to arterial sheath stiff end, set up the position that second standing groove and first standing groove are restricting the arterial sheath stiff end simultaneously, establish spacing spring again and dead lever structure make above-mentioned step repeatedly executable, and then make the integrated device more stable, convenient in-service use, and because unable adjustment base's existence, just do benefit to going on of fixed subassembly loading work, above-mentioned structure mutually supports simultaneously, can prevent that arterial sheath pipe from discounting and influencing the blood flow.

Description

Novel VA-ECMO collateral branch arterial sheath

Technical Field

The utility model relates to a collateral branch artery sheath technical field specifically is a novel VA-ECMO collateral branch artery sheath.

Background

Modern medicine mostly adopts a collateral arterial sheath to establish collateral circulation, which is the most effective way for preventing artery ischemia and vein intubation extracorporeal membrane lung (VA-ECMO) lower limb arterial ischemia and is a conventional treatment way in VA-ECMO operation.

The traditional VA-ECMO collateral branch arterial sheath assembly still has a few defects in actual use, and firstly, the existing VA-ECMO collateral branch arterial sheath is mostly formed by assembling a plurality of sections of tube bodies for the treatment effect, but the tube body ports are connected and a limit structure is not arranged, so that the tube bodies are easy to fall off when the assembly is used, the whole assembly cannot meet the requirements of a user, and the recovery effect of a patient is influenced; secondly, when the existing collateral artery sheath is actually operated, the collateral artery sheath can only be simply placed on a surgical disinfection drape due to the limitation of the structure of the collateral artery sheath, and along with the operation, the position of the collateral artery sheath is easy to change, so that the stable implantation in the artery of a patient is influenced, the whole collateral artery sheath cannot play a due role, and a novel VA-ECMO collateral artery sheath is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel VA-ECMO collateral branch artery sheath possesses simple structure, convenient operation, overall structure stabilize, be convenient for fixed and the wholeness can be excellent advantage, has solved a series of problems that propose in the above-mentioned background art.

The utility model provides a following technical scheme: a novel VA-ECMO collateral branch arterial sheath comprises a fixed base, wherein auxiliary holes are formed in the fixed base, the bottoms of the auxiliary holes are respectively and fixedly provided with a limiting spring and a fixed rod, the fixed rod is connected with a movable footstock in a sliding manner, the end part, far away from the fixed base, of the limiting spring is fixedly connected with the movable footstock, the bottom of the fixed base is provided with an auxiliary chute, the inside of the auxiliary chute is respectively connected with two limiting clamp plates in a sliding manner, the inside of the fixed base is connected with a threaded rod in a rotating manner, the threaded rod is respectively provided with two sections of threads with opposite rotating directions, the two sections of threads with opposite rotating directions are respectively in threaded connection with the two limiting clamp plates, the fixed base is provided with a first placing groove close to the top of the movable footstock, the movable footstock is provided with a second placing groove close to the bottom of the fixed base, the inside of first standing groove is provided with artery sheath stiff end, fixed being equipped with first artery sheath pipe and second artery sheath pipe respectively on the artery sheath stiff end.

As a preferred technical scheme of the utility model, the threaded rod is located the inside of supplementary spout, and the end fixing of threaded rod is equipped with manual knob, the last fixed friction muscle that is equipped with of manual knob.

As an optimal technical scheme of the utility model, the end fixing of keeping away from unable adjustment base of dead lever is equipped with the stopper, the cross sectional area of dead lever is four fifths of stopper cross sectional area.

As a preferred technical scheme of the utility model, the stopper is located the inside of activity footstock, and stopper and activity footstock sliding connection.

As a preferred technical scheme of the utility model, the shape size of first standing groove is unanimous with the shape size of second standing groove.

As an optimized technical scheme of the utility model, the end fixing that artery sheath stiff end was kept away from to first artery sheath pipe is equipped with single public lu's joint.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this novel VA-ECMO collateral branch arterial sheath, through setting up unable adjustment base and movable footstock structure with the inside that the two was wrapped up into to arterial sheath stiff end, set up the position that second standing groove and first standing groove are restricting the arterial sheath stiff end simultaneously, establish spacing spring again and dead lever structure make above-mentioned step repeatedly executable, and then make the integrated device more stable, convenient in-service use, and because unable adjustment base's existence, just do benefit to going on of fixed subassembly loading work, above-mentioned structure mutually supports simultaneously, can prevent that arterial sheath pipe from discounting and influencing the blood flow.

2. This novel VA-ECMO collateral branch arterial sheath, bottom through at unable adjustment base sets up spacing splint and threaded rod structure, two spacing splint simultaneously respectively with the threaded rod on two sections screw thread connections that the direction of rotation is imitative mutually, and spacing splint still slide in the inside of supplementary spout, so far, user alright rotation threaded rod, utilize above-mentioned structure to fix whole unable adjustment base's position restriction, still make arterial sheath stiff end simultaneously, first artery sheath pipe and second artery sheath pipe structure are the position fixed state, thereby when having avoided whole collateral branch arterial sheath operation to go on, the phenomenon of skew takes place for the integrated device position, can stably go on in order to ensure whole operation, the benefit that this operation brought for the patient has also been ensured simultaneously.

Drawings

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

FIG. 2 is another view of the overall structure of the present invention;

FIG. 3 is a schematic view of the structure of the limiting spring of the present invention;

FIG. 4 is a schematic view of another state of the structure of the limiting spring of the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

fig. 6 is a schematic structural view of the first placing groove of the present invention.

In the figure: 1. a fixed base; 101. an auxiliary hole; 102. a first placing groove; 103. an auxiliary chute; 2. a movable top seat; 201. a second placing groove; 3. a first arterial sheath; 4. a second arterial sheath; 5. a single male luer connector; 6. a limiting spring; 7. fixing the rod; 701. a limiting block; 8. an arterial sheath fixation end; 9. a limiting clamp plate; 10. a manual knob; 11. a threaded rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in figures 1 to 5, the utility model provides a novel VA-ECMO collateral artery sheath, which comprises a fixed base 1, wherein an auxiliary hole 101 is arranged inside the fixed base 1, the bottom of the auxiliary hole 101 is respectively and fixedly provided with a limit spring 6 and a fixed rod 7, a movable footstock 2 is slidably connected on the fixed rod 7, the end part of the limit spring 6 far away from the fixed base 1 is fixedly connected with the movable footstock 2, the bottom of the fixed base 1 is provided with an auxiliary chute 103, the inside of the auxiliary chute 103 is respectively and slidably connected with two limit splints 9, the inside of the fixed base 1 is rotatably connected with a threaded rod 11, two sections of threads with opposite rotating directions are respectively arranged on the threaded rod 11, the two sections of threads with opposite rotating directions are respectively in threaded connection with the two limit splints 9, the fixed base 1 is provided with a first placing groove 102 near the top of the movable footstock 2, the movable footstock 2 is provided with a second placing groove 201 near the bottom of the fixed base 1, the inside of first standing groove 102 is provided with artery sheath stiff end 8, it is equipped with first artery sheath pipe 3 and second artery sheath pipe 4 to fix respectively on artery sheath stiff end 8, use spacing spring 6 structure to couple together unable adjustment base 1 and activity footstock 2, the fixed dead lever 7 that is setting up in the inside of auxiliary hole 101 simultaneously, improve the stability of integrated device, above-mentioned structure is mutually supported and is used, make whole VA-ECMO collateral branch artery sheath structure can be stable reasonable carry out relevant work, set up threaded rod 11 again in unable adjustment base 1's bottom, spacing splint 9 and supplementary spout 103 isotructure, make that the user can be quick fix whole unable adjustment base 1 and artery sheath stiff end 8, the VA-ECMO collateral branch artery sheath structure that first artery sheath pipe 3 and second artery sheath pipe 4 are constituteed, and then improve the practicality of integrated device.

Wherein, threaded rod 11 is located the inside of supplementary spout 103, and the end fixing of threaded rod 11 is equipped with manual knob 10, and the fixed friction muscle that is equipped with on the manual knob 10 increases the frictional force between this structure and the user, and then makes the state of the manual knob 10 of control that the user can be more stable, does benefit to going on of follow-up monolithic stationary work.

Wherein, the end fixing of keeping away from unable adjustment base 1 of dead lever 7 is equipped with stopper 701, and the cross sectional area of dead lever 7 is four fifths of stopper 701 cross sectional area, provides a stop device for overall structure, not only makes overall structure more stable, has still avoided spacing spring 6 phenomenon that serious deformation appears, and then guarantee holistic life.

The limit block 701 is located inside the movable top seat 2, and the limit block 701 is connected with the movable top seat 2 in a sliding mode, so that the set device can run stably and reasonably, and further the overall structure can be stable to provide substantial help for a user.

The shape and size of the first placing groove 102 are the same as those of the second placing groove 201, so that the position of the artery sheath fixing end 8 structure is limited between the fixed base 1 and the movable footstock 2, and the stability of the whole structure is ensured.

Wherein, the end fixing that first artery sheath pipe 3 kept away from artery sheath stiff end 8 is equipped with single public luer 5, and this structure can make artery sheath group directly be connected with ECMO artery intubate end first, has reduced and has used the extension pipe to lead to the pipeline overlength thrombus and infection risk to appear.

The working principle is that whether the whole structure is intact is checked, after the intact structure is confirmed, the manual knob 10 is rotated, the threaded rod 11 synchronously rotates, two limiting clamp plates 9 with opposite thread rotating directions on the threaded rod 11 start to slide towards the central part of the fixed base 1 in the auxiliary chute 103 until the threaded rod contacts with the fixed structure, at the moment, the fixed base 1 and the structure above the fixed base are fixed under the mutual cooperation of the two limiting clamp plates 9, the movable top seat 2 is pulled, the fixed rod 7 connecting the movable top seat 2 and the fixed base 1 starts to deform, the movable top seat 2 slides on the fixed rod 7 until the second placing groove 201 and the first placing groove 102 are exposed, the shape formed by the movable top seat 2 and the first placing groove is consistent with the shape of the fixed end 8 of the arterial sheath, the fixed end 8 of the arterial sheath can be placed in the first placing groove 102, the movable top seat 2 is loosened, and under the elastic force of the fixed rod 7, contact with unable adjustment base 1, and then second standing groove 201 and first standing groove 102 mutually support, not only fix the position of artery sheath stiff end 8, still restricted the position of first artery sheath 3 and second artery sheath 4, at this moment, the user alright carry out the operation of VA-ECMO collateral branch artery sheath to whole device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A novel VA-ECMO collateral branch arterial sheath comprises a fixed base (1), and is characterized in that: the inner part of the fixed base (1) is provided with an auxiliary hole (101), the bottom of the auxiliary hole (101) is respectively and fixedly provided with a limit spring (6) and a fixed rod (7), the fixed rod (7) is connected with a movable top seat (2) in a sliding way, the end part of the limit spring (6) far away from the fixed base (1) is fixedly connected with the movable top seat (2), the bottom of the fixed base (1) is provided with an auxiliary sliding groove (103), the inner part of the auxiliary sliding groove (103) is respectively connected with two limit clamping plates (9) in a sliding way, the inner part of the fixed base (1) is rotatably connected with a threaded rod (11), the threaded rod (11) is respectively provided with two sections of threads with opposite rotating directions, the two sections of threads with opposite rotating directions are respectively in threaded connection with the two limit clamping plates (9), the fixed base (1) is provided with a first placing groove (102) close to the top of the movable top seat (2), the arterial sheath catheter is characterized in that a second placing groove (201) is formed in the bottom, close to the fixed base (1), of the movable top seat (2), an arterial sheath fixing end (8) is arranged inside the first placing groove (102), and a first arterial sheath catheter (3) and a second arterial sheath catheter (4) are fixedly arranged on the arterial sheath fixing end (8) respectively.

2. The novel VA-ECMO collateral arterial sheath of claim 1, wherein: threaded rod (11) are located the inside of supplementary spout (103), and the end fixing of threaded rod (11) is equipped with manual knob (10), the fixed friction muscle that is equipped with on manual knob (10).

3. The novel VA-ECMO collateral arterial sheath of claim 1, wherein: the end part of the fixing rod (7) far away from the fixing base (1) is fixedly provided with a limiting block (701), and the cross section area of the fixing rod (7) is four fifths of that of the limiting block (701).

4. The novel VA-ECMO collateral arterial sheath of claim 3, wherein: the limiting block (701) is located inside the movable top seat (2), and the limiting block (701) is connected with the movable top seat (2) in a sliding mode.

5. The novel VA-ECMO collateral arterial sheath of claim 1, wherein: the shape and size of the first placing groove (102) are consistent with the shape and size of the second placing groove (201).

6. The novel VA-ECMO collateral arterial sheath of claim 1, wherein: the end part of the first artery sheath tube (3) far away from the artery sheath fixed end (8) is fixedly provided with a single-metric Luur joint (5).