CN110917426B

CN110917426B - Double-pipeline switching type extracorporeal circulation device

Info

Publication number: CN110917426B
Application number: CN201911272509.0A
Authority: CN
Inventors: 卢金峰; 何君梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2022-05-03
Anticipated expiration: 2039-12-12
Also published as: CN110917426A

Abstract

The invention relates to the technical field of double-pipeline switching type extracorporeal circulation devices, and discloses a double-pipeline switching type extracorporeal circulation device which comprises a base, wherein a T-shaped groove is formed in the upper wall surface of the base, the T-shaped groove penetrates through the left and right side wall surfaces of the base, a sleeve pipe connected to a straight pipe is rotated, then the sleeve pipe is gradually withdrawn from the interior of the straight pipe, then the sleeve pipe moves backwards on a connecting pipe, then the connecting pipe connected with the straight pipe slides to one side far away from the straight pipe, then the other connecting pipe is slid to enable the other connecting pipe to move to the position aligned with the straight pipe, then the sleeve pipe is rotated to enable the sleeve pipe to move forwards on the connecting pipe corresponding to the straight pipe, then the sleeve pipe moves to the interior of the straight pipe and is connected with the straight pipe through threads, and the arrangement is convenient for replacing pipelines and switching, and avoids the problem that the existing double-pipeline extracorporeal circulation devices are welded, therefore, the valve needs to be switched continuously during replacement, which wastes time and labor.

Description

Double-pipeline switching type extracorporeal circulation device

Technical Field

The invention relates to the technical field of double-pipeline switching type extracorporeal circulation devices, in particular to a double-pipeline switching type extracorporeal circulation device.

Background

Extracorporeal circulation is a life support technique in which cardiovenous blood is drained to the outside of the body by a series of special artificial devices, and is returned to the arterial system in the body after gas exchange, temperature regulation and filtration by an artificial method. In the process of extracorporeal circulation, the artificial device replaces the function of the human body, so the cardiopulmonary bypass is called, and the extracorporeal circulation machine is also called as an artificial heart-lung machine. The purpose of extracorporeal circulation is to maintain the blood supply to the tissues and organs of the whole body while performing open-heart surgery. With the development of clinical medicine, the application range of extracorporeal circulation is expanding, and extracorporeal circulation has been applied not only to large vessel surgery such as heart, liver, kidney, lung, etc., but also to life support of patients with tumor treatment and cardiopulmonary failure, and has become an important technology in clinical medicine.

The pipeline of the existing double-pipeline extracorporeal circulation equipment is welded, so that the valve needs to be switched ceaselessly during replacement, and time and labor are wasted.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a double-pipeline switching type extracorporeal circulation device.

(II) technical scheme

The invention provides the following technical scheme: a double-pipeline switching type extracorporeal circulation device comprises a base, wherein the base is a rectangular block, a T-shaped groove is formed in the upper wall surface of the base, the T-shaped groove penetrates through the left side wall surface and the right side wall surface of the base, two connecting pipes are arranged above the base, a T-shaped block is arranged on the lower wall surface of each connecting pipe, an arc-shaped groove is formed in the upper wall surface of the T-shaped block, the arc-shaped grooves penetrate through the front side wall surface and the rear side wall surface of the T-shaped block, the bottom inner wall of each arc-shaped groove is fixedly connected with the bottom inner wall of each connecting pipe, the T-shaped block is matched with the T-shaped grooves, the T-shaped blocks are movably connected with the T-shaped grooves, the T-shaped blocks can slide left and right inside the T-shaped grooves, sleeves are arranged at the front ends and the rear ends of the connecting pipes, internal threads are formed in the inner walls of the sleeves, external threads are formed in the outer walls of the connecting pipes, and the connecting pipes are connected with the sleeves in a threaded manner, the inner wall of the sleeve pipe is fixedly connected with a pipeline, the pipeline is communicated with external equipment, a fixing ring is fixedly installed on the upper wall surface of the base, the fixing ring is a circular ring-shaped block, a straight pipe is fixedly installed inside the fixing ring, an internal thread is formed on the inner wall of the straight pipe, an external thread is formed on the outer wall of the sleeve pipe at the front end, the sleeve pipe at the front end of one of the two connecting pipes is in threaded connection with the straight pipe, when the connecting pipe needs to be replaced, the sleeve pipe is rotatably connected to the straight pipe, then the sleeve pipe gradually withdraws from the inside of the straight pipe, then the sleeve pipe moves backwards on the connecting pipe, then the connecting pipe connected with the straight pipe slides towards one side far away from the straight pipe, then the other connecting pipe slides to enable the other connecting pipe to move to the position aligned with the straight pipe, then the sleeve pipe is rotated to enable the sleeve pipe to move forwards on the connecting pipe corresponding to the straight pipe, then the sleeve is moved into the straight pipe and is connected with the straight pipe in a threaded manner to achieve the purpose of replacing the pipe, a vertical groove is formed in the wall face above the straight pipe, the vertical groove is a rectangular groove and is communicated with the inside of the straight pipe, connecting grooves are formed in the front inner wall and the rear inner wall of the vertical groove respectively, the connecting grooves are rectangular grooves, the width of each connecting groove is the same as that of the inner wall of the vertical groove, a movable plate capable of sliding forwards and backwards is movably mounted in the vertical groove, the movable plate is a rectangular block and is attached to the inner walls of the left side and the right side of the movable plate respectively, the movable plate extends forwards from the connecting groove in the rear direction to the inside of the connecting groove in the front direction, one sixth of the movable plate is located in the connecting groove, a vertical block is fixedly mounted on the wall face above the vertical groove area, and is a rectangular block, and the vertical block extends upwards to the upper part of the straight pipe, a circular groove is formed in the front wall surface of the vertical block, and a bearing is fixedly arranged in the circular groove of the vertical block.

Preferably, the bearing is current structure, does not do here and give unnecessary details, fixed mounting has the rectangular block on the upside wall of straight tube, the rectangular block corresponds around with the upright block, set up the screw hole that has run through the two side wall surfaces around the rectangular block on the rectangular block.

Preferably, the threaded hole is internally and threadedly connected with a threaded column, the threaded column extends all the way to the rear, and the threaded column is fixedly connected with the inner shaft of the bearing.

Preferably, the movable plate is located on the lower wall surface of the vertical groove area and is fixedly provided with a connecting block, the connecting block is arc-shaped, the bottom wall surface of the connecting block is flush with the inner wall of the straight pipe, and a ball is fixedly arranged on the lower wall surface of the connecting block.

Preferably, the inner wall in front of the straight pipe is fixedly provided with a convex block, the rear end of the convex block is in an inwards concave arc shape, and the rear end of the convex block is matched with the ball.

(III) advantageous effects

Compared with the prior art, the invention provides a double-pipeline switching type extracorporeal circulation device, which has the following beneficial effects:

1. this two pipeline switch formula extrinsic cycle device, swivelling joint is the sleeve pipe on the straight tube, then the sleeve pipe withdraws from the inside of straight tube gradually, then the sleeve pipe moves backward on the connecting pipe, then the connecting pipe that will connect the straight tube slides to one side of keeping away from the straight tube, then another connecting pipe slides, make another connecting pipe move the position of aliging with the straight tube, then swivel sleeve pipe, make the sleeve pipe move forward on the connecting pipe that corresponds with the straight tube, then the sleeve pipe moves the inside of straight tube, together with straight tube threaded connection, play the purpose of changing the pipe, such setting, conveniently change the pipeline, convenient switching, avoided current two pipeline extrinsic cycle equipment because its pipeline is welded, so leaded to when changing, switching valve that need not stop, waste time and energy.

2. This two pipeline switch formula extracorporeal circulation device, when needs are changed, swivelling joint is the sleeve pipe on the straight tube, then the sleeve pipe withdraws from the inside of straight tube gradually, then the sleeve pipe moves backward on the connecting pipe, and such setting is convenient closed with the straight tube, has made things convenient for subsequent operation.

3. This two pipeline switch formula extracorporeal circulation device, both ends all are provided with the sleeve pipe around the connecting pipe, have seted up the internal thread on the sheathed tube inner wall, have seted up the external screw thread on the outer wall of connecting pipe, and the connecting pipe is in the same place with sleeve pipe threaded connection, has seted up the external screw thread on the sheathed tube outer wall, and the sleeve pipe and the straight tube threaded connection of front end are in the same place, and this device all adopts threaded mode to connect, easy to assemble, and the maintenance and the change in the later stage of being convenient for.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic diagram of the connection tube and the sleeve tube;

FIG. 3 is a schematic cross-sectional view of a straight tube;

fig. 4 is a partially enlarged view of a portion a in fig. 1.

In the figure: the device comprises a base 1, a fixing ring 2, a T-shaped groove 3, a T-shaped block 4, an arc-shaped groove 5, a connecting pipe 6, a sleeve 7, a pipeline 8, a straight pipe 9, a vertical groove 10, a vertical block 11, a bearing 12, a rectangular block 13, a threaded hole 14, a threaded column 15, a convex block 16, a movable plate 17, a connecting groove 18, a connecting block 19 and a round ball 20.

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, a double-pipeline switching extracorporeal circulation device comprises a base 1, wherein the base 1 is a rectangular block, a T-shaped groove 3 is formed in the upper wall surface of the base 1, the T-shaped groove 3 penetrates through the left and right side wall surfaces of the base 1, two connecting pipes 6 are arranged above the base 1, a T-shaped block 4 is arranged on the lower wall surface of each connecting pipe 6, an arc-shaped groove 5 is formed in the upper wall surface of each T-shaped block 4, the arc-shaped grooves 5 penetrate through the front and rear side wall surfaces of each T-shaped block 4, the bottom inner wall of each arc-shaped groove 5 is fixedly connected with the bottom inner wall of each connecting pipe 6, the T-shaped blocks 4 are matched with the T-shaped grooves 3, the T-shaped blocks 4 are movably connected with the T-shaped grooves 3, the T-shaped blocks 4 can slide left and right inside the T-shaped grooves 3, sleeves 7 are arranged at the front and rear ends of the connecting pipes 6, an internal thread is arranged on the inner wall of the sleeve 7, an external thread is arranged on the outer wall of the connecting pipe 6, the connecting pipe 6 is in threaded connection with the sleeve 7, a pipeline 8 is fixedly connected to the inner wall of the sleeve 7 at the rear part, the pipeline 8 is communicated with external equipment, a fixing ring 2 is fixedly mounted on the upper wall surface of the base 1, the fixing ring 2 is a circular ring-shaped block, a straight pipe 9 is fixedly mounted inside the fixing ring 2, an internal thread is arranged on the inner wall of the straight pipe 9, an external thread is arranged on the outer wall of the sleeve 7 at the front end, the sleeve 7 at the front end of one of the two connecting pipes 6 is in threaded connection with the straight pipe 9, when the sleeve 7 is required to be replaced, the sleeve 7 is rotatably connected to the straight pipe 9, then the sleeve 7 gradually withdraws from the inside of the straight pipe 9, and then the sleeve 7 moves backwards on the connecting pipe 6, then sliding the connecting pipe 6 connected with the straight pipe 9 to the side far away from the straight pipe 9, then sliding the other connecting pipe 6 to move the other connecting pipe 6 to the position aligned with the straight pipe 9, then rotating the sleeve 7 to move the sleeve 7 forwards on the connecting pipe 6 corresponding to the straight pipe 9, then moving the sleeve 7 to the inside of the straight pipe 9 to be connected with the straight pipe 9 by screw thread, so as to achieve the purpose of replacing the pipe, wherein the upper wall surface of the straight pipe 9 is provided with a vertical groove 10, the vertical groove 10 is a rectangular groove, the vertical groove 10 is communicated with the inside of the straight pipe 9, the front and back inner walls of the vertical groove 10 are respectively provided with a connecting groove 18, the connecting groove 18 is a rectangular groove, the width of the connecting groove 18 is the same as that of the inner wall of the vertical groove 10, a movable plate 17 capable of sliding forwards and backwards is movably installed inside the vertical groove 10, and the movable plate 17 is a rectangular block, and the left and right side wall surfaces of the movable plate 17 are respectively attached to the left and right side inner walls of the vertical groove 10, the movable plate 17 extends forward from the connecting groove 18 at the rear to the inside of the connecting groove 18 at the front, one sixth of the movable plate 17 is located inside the connecting groove 18, the movable plate 17 is located on the upper wall surface of the vertical groove 10 region and is fixedly provided with a vertical block 11, the vertical block 11 is a rectangular block, the vertical block 11 extends upward to the upper side of the straight pipe 9, the front wall surface of the vertical block 11 is provided with a circular groove, a bearing 12 is fixedly arranged in the circular groove of the vertical block 11, the bearing 12 is an existing structure and is not described herein, the upper side wall surface of the straight pipe 9 is fixedly provided with a rectangular block 13, the rectangular block 13 corresponds to the vertical block 11 in the front and rear directions, the rectangular block 13 is provided with a threaded hole 14 penetrating through the front and rear side wall surfaces of the rectangular block 13, and the threaded hole 14 is internally and is connected with a threaded post 15, the utility model discloses a bearing, including threaded column 15, fly leaf 17, straight tube 9, convex piece 16, the rear end of convex piece 16 is the arc of indent, and the rear end of convex piece 16 and ball 20 looks adaptation are just protruding, and threaded column 15 is in the same place with the interior axle fixed connection of bearing 12, fixed mounting has connecting block 19 on the below wall that fly leaf 17 is located vertical groove 10 region, connecting block 19 is curved, and the bottom wall of connecting block 19 keeps flushing with the inner wall of straight tube 9, fixed mounting has ball 20 on the below wall of connecting block 19, fixed mounting has convex piece 16 on the place ahead inner wall of straight tube 9, the rear end of convex piece 16 is the arc of indent, and the rear end and the ball 20 looks adaptation of convex piece 16.

When in use, the utility model is used,

the first step is as follows: the straight pipe 9 is closed, the threaded column 15 is firstly rotated, then the threaded column 15 moves forwards, then the movable plate 17 is driven to move forwards, then the round ball 20 is driven to move forwards, and then the round ball 20 is attached to the arc-shaped inner wall of the rear end of the protruding block 20 to block the protruding block, so that the effect of closing the straight pipe 9 is achieved.

The second step is that: when the pipe needs to be replaced, the sleeve 7 connected to the straight pipe 9 is rotated, then the sleeve 7 gradually withdraws from the inside of the straight pipe 9, then the sleeve 7 moves backwards on the connecting pipe 6, then the connecting pipe 6 connected with the straight pipe 9 slides to one side far away from the straight pipe 9, then the other connecting pipe 6 slides, so that the other connecting pipe 6 moves to the position aligned with the straight pipe 9, then the sleeve 7 is rotated, so that the sleeve 7 moves forwards on the connecting pipe 6 corresponding to the straight pipe 9, then the sleeve 7 moves to the inside of the straight pipe 9 and is in threaded connection with the straight pipe 9, and the purpose of replacing the pipe is achieved.

The third step: the straight pipe 9 is opened, firstly the threaded column 15 is rotated, then the threaded column 15 moves backwards, then the movable plate 17 is driven to move backwards, then the round ball 20 is far away from the arc-shaped inner wall of the rear end of the convex block 20, and then the straight pipe 9 is opened.

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. The utility model provides a two pipeline switch formula extracorporeal circulation device, includes base (1), its characterized in that: the improved structure of the water-cooled water heater is characterized in that two connecting pipes (6) are arranged above the base (1), sleeves (7) are arranged at the front end and the rear end of each connecting pipe (6), a pipeline (8) is fixedly connected to the inner wall of each sleeve (7) at the rear end, a fixing ring (2) is fixedly arranged on the upper wall of the base (1), a straight pipe (9) is fixedly arranged inside the fixing ring (2), a vertical groove (10) is formed in the upper wall of the straight pipe (9), connecting grooves (18) are formed in the front inner wall and the rear inner wall of the vertical groove (10) respectively, a movable plate (17) capable of sliding back and forth is movably arranged inside the vertical groove (10), a vertical block (11) is fixedly arranged on the upper wall of the movable plate (17) located in the vertical groove (10) region, a circular groove is formed in the front wall of the vertical block (11), and a bearing (12) is fixedly arranged in the circular groove of the vertical block (11), a rectangular block (13) is fixedly mounted on the upper side wall surface of the straight pipe (9), threaded holes (14) penetrating through the front side wall surface and the rear side wall surface of the rectangular block (13) are formed in the rectangular block (13), threaded columns (15) are connected to the inner threads of the threaded holes (14), the threaded columns (15) are fixedly connected with the inner shaft of the bearing (12), a connecting block (19) is fixedly mounted on the lower wall surface of the movable plate (17) in the vertical groove (10) area, balls (20) are fixedly mounted on the lower wall surface of the connecting block (19), and a protruding block (16) is fixedly mounted on the front inner wall of the straight pipe (9);

the base (1) is a rectangular block, a T-shaped groove (3) is formed in the upper wall surface of the base (1), and the T-shaped groove (3) penetrates through the left side wall surface and the right side wall surface of the base (1);

the lower wall surface of the connecting pipe (6) is provided with a T-shaped block (4), the upper wall surface of the T-shaped block (4) is provided with an arc-shaped groove (5), the arc-shaped groove (5) penetrates through the front side wall surface and the rear side wall surface of the T-shaped block (4), and the bottom inner wall of the arc-shaped groove (5) is fixedly connected with the bottom inner wall of the connecting pipe (6);

the T-shaped block (4) is matched with the T-shaped groove (3), and the T-shaped block (4) is movably connected with the T-shaped groove (3);

an internal thread is formed on the inner wall of the sleeve (7), an external thread is formed on the outer wall of the connecting pipe (6), and the connecting pipe (6) is in threaded connection with the sleeve (7);

an internal thread is formed on the inner wall of the straight pipe (9), an external thread is formed on the outer wall of the sleeve (7) at the front end, and the sleeve (7) at the front end of one of the two connecting pipes (6) is in threaded connection with the straight pipe (9).

2. The dual-conduit switched extracorporeal circulation device of claim 1, wherein: the vertical groove (10) is a rectangular groove, the vertical groove (10) is communicated with the inside of the straight pipe (9), and the movable plate (17) is a rectangular block;

the left and right side wall surfaces of the movable plate (17) are attached to the inner walls of the left and right sides of the vertical groove (10) respectively, the movable plate (17) extends forwards from the connecting groove (18) at the rear to the inside of the connecting groove (18) in the front, and one sixth of the movable plate (17) is located inside the connecting groove (18).

3. The dual-conduit switched extracorporeal circulation device of claim 1, wherein: the connecting groove (18) is a rectangular groove, the width of the connecting groove (18) is the same as that of the inner wall of the vertical groove (10), the vertical block (11) is a rectangular block, and the vertical block (11) extends up to the upper part of the straight pipe (9).

4. The dual-conduit switched extracorporeal circulation device of claim 1, wherein: the rectangular block (13) corresponds to the vertical block (11) in the front-back direction, the connecting block (19) is arc-shaped, and the bottom wall surface of the connecting block (19) is flush with the inner wall of the straight pipe (9).

5. The dual-conduit switched extracorporeal circulation device of claim 1, wherein: the rear end of the convex block (16) is in an inwards concave arc shape, and the rear end of the convex block (16) is matched with the round ball (20).