Extracorporeal circulation pipeline bending corrector

Abstract

The utility model discloses an extracorporeal circulation pipeline bending corrector which is characterized by comprising a circulation pipeline and a correcting mechanism, the correcting mechanism comprises a correcting spring connected to the outer side of the circulation pipeline in a sleeved mode, a fixing base is arranged on one side of the correcting spring, and an adjusting base is arranged on the other side of the correcting spring. A pull wire is fixedly mounted on one side of the fixed seat, an adjusting bolt is rotatably mounted on one side of the adjusting seat, the other end of the pull wire is fixedly mounted on the adjusting bolt, a worm is rotatably mounted in the adjusting seat, connectors are arranged on one side of the fixed seat and one side of the adjusting seat respectively, and connecting nuts are in threaded connection with the outer sides of the connectors. By arranging the correcting mechanism, automatic recovery of the circulating pipeline is driven through the self-recovery effect of the correcting spring, meanwhile, the correcting spring is bent by contracting the pull wire, then the circulating pipeline is driven to be bent through the correcting spring, and the situation that when the bending angle of the circulating pipeline is too large, the circulating pipeline is blocked after being bent is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to clinical medical instrument technical field, concretely relates to a kind of extracorporeal circulation pipeline bending corrector. BACKGROUND

[0002] In extracorporeal circulation surgery, the correct layout and smooth running of pipeline are crucial, and the traditional method usually adopts the way of manually adjusting pipeline to solve the problem of flow obstruction caused by pipeline bending, however, this method has certain deficiencies, such as time-consuming and laborious adjustment process, and easy to cause pipeline damage or local excessive pressure, thereby affecting the surgical effect and patient safety.

[0003] Prior art, for example, the Chinese utility model patent with the announcement number CN221692501U discloses "a kind of extracorporeal circulation pipeline bending corrector", pipeline is placed into the opening of corrector body, then the two sides of corrector body are connected together by connecting piece, then the two ends of corrector are driven close by winding connecting rope through forward rotation fixing mechanism, i.e. bending, the shape of corrector body can be adjusted according to the winding state of connecting rope, so that single corrector can adapt to more shapes, but the structure has defects, i.e. the structure is difficult to automatically correct pipeline, and the ratchet pawl mechanism used in the structure makes the corrector only one-way limit pipeline, and when recovering in reverse direction, the pipeline correction cannot be assisted by ratchet jaw mechanism. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of extracorporeal circulation pipeline bending corrector, which can automatically correct pipeline, limit pipeline bending, prevent blocked pipeline when bending, and improve the stability of surgery.

[0005] In order to achieve the above technical effects, the utility model is realized by the following technical scheme: a kind of extracorporeal circulation pipeline bending corrector, characterized by comprising circulation pipeline and correction mechanism, the correction mechanism includes correction spring sleeved on the outside of circulation pipeline, the one side of correction spring is provided with fixed seat, the other side of correction spring is provided with adjusting seat, the one side of fixed seat is fixedly installed with traction line, the one side of adjusting seat is rotatably installed with adjusting peg, the other end of traction line is fixedly installed on adjusting peg, the inside of adjusting seat is rotatably installed with worm, the one side of fixed seat and adjusting seat is respectively provided with connecting head, the outside of connecting head is screw-connected with connecting nut.

[0006] Preferably, the correction spring has multiple models, and the elastic coefficient of the correction spring is greater than the elastic coefficient of the circulation pipeline.

[0007] Preferably, a through hole is formed in the middle of the fixing seat, the through hole is concentric with the correction spring, a protrusion is arranged on one side of the fixing seat, and one end of a traction line is fixedly installed on the protrusion.

[0008] Preferably, a through hole is formed in the middle of the adjusting seat, an adjusting block is arranged on one side of the adjusting seat, an adjusting groove is formed in the adjusting block, and a worm is rotatably installed in the adjusting groove.

[0009] Preferably, the diameter of the adjusting bolt on the outer side is smaller than the diameter of the adjusting bolt on the inner side, a baffle is arranged on the outer side of the adjusting bolt, a worm wheel is fixedly installed on one side of the adjusting bolt, the worm wheel is rotatably installed in the adjusting groove, and the worm wheel is matched with the worm.

[0010] Preferably, the connecting head has multiple types, the front end of the connecting head is in a conical structure, the inner diameter of the front end of the connecting head is smaller than the outer diameter of the circulating pipeline, and connecting grooves are equidistantly formed on the connecting head.

[0011] Compared with the related art, the extracorporeal circulation pipeline bending corrector has the following beneficial effects:

[0012] 1. The correction mechanism is arranged, the self-recovery effect of the correction spring is utilized to drive the automatic recovery of the circulating pipeline, the traction line is retracted to make the correction spring bend, the circulating pipeline is driven to bend by the correction spring, and the circulating pipeline is prevented from being blocked after bending when the bending angle is too large.

[0013] 2. The worm wheel and the worm are arranged, the self-locking function of the worm wheel and the worm is utilized, the traction line can fix the bending of the correction spring, and the worm wheel and the worm are more accurate in retracting and adjusting the traction line. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Figure 1 is a schematic diagram of the overall structure of the present application;

[0016] Figure 2 is a schematic diagram of the overall structure of the correction mechanism of the present application;

[0017] Figure 3 is a sectional view of the adjusting seat of the present application;

[0018] Figure 4 is a schematic diagram of the connection relationship of the worm wheel and the worm of the present application;

[0019] Figure 5 is the working schematic view of the correction mechanism.

[0020] In the drawings, the component list represented by each reference numeral is as follows:

[0021] 1, circulation pipeline; 2, correction mechanism; 21, correction spring; 22, fixed seat; 221, through hole; 222, protruding block; 23, adjusting seat; 231, adjusting block; 232, adjusting groove; 24, traction line; 25, adjusting bolt; 251, baffle; 252, worm gear; 26, worm; 27, connecting head; 271, connecting groove; 28, connecting cap. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0023] Embodiment 1

[0024] Referring to Figures 1 to 5 The body outside circulation pipeline bending corrector, characterized in that, including circulation pipeline 1 and correction mechanism 2, the correction mechanism 2 including the correction spring 21 of the sleeve joint in circulation pipeline 1 outside, one side of the correction spring 21 is provided with fixed seat 22, the other side of correction spring 21 is provided with adjusting seat 23, one side of the fixed seat 22 is fixedly installed with traction line 24, one side of the adjusting seat 23 is rotatably installed with adjusting bolt 25, the other end of the traction line 24 is fixedly installed on adjusting bolt 25, the worm 26 is rotatably installed in adjusting seat 23, the fixed seat 22 and adjusting seat 23 one side are provided with connecting head 27 respectively, the connecting head 27 outside is screwed with connecting nut. The correction spring 21 corrects the circulation pipeline 1 through the elastic potential energy of itself, and also can fix the correction spring 21 and the circulation pipeline 1 through the connecting head 27 on both sides of the correction spring 21, when the circulation pipeline 1 twists, the circulation pipeline 1 can also be restored through the elastic potential energy of the correction spring 21 itself, and the traction line 24 can also be retracted through the rotation of the adjusting bolt 25, so that the correction spring 21 bends, and then drives the circulation pipeline 1 to bend.

[0025] The correction spring 21 has multiple models, and the elastic coefficient of the correction spring 21 is greater than the elastic coefficient of the circulation pipeline 1. The elastic coefficient of the correction spring 21 is greater than the elastic coefficient of the circulation pipeline 1, so that the correction spring 21 can actively drive the circulation pipeline 1 to change shape.

[0026] The fixed seat 22 is provided with a through hole 221 in the middle, the through hole 221 is concentric with the correction spring 21, the fixed seat 22 is provided with a lug 222 on one side, and one end of the traction line 24 is fixedly installed on the lug 222. The through hole 221 is concentric with the correction spring 21, so that the correction spring 21 can make the circulating pipeline 1 straight when the correction cycle pipeline 1 is corrected.

[0027] The adjusting seat 23 is provided with a through hole 221 in the middle, the adjusting seat 23 is provided with an adjusting block 231 on one side, the adjusting block 231 is provided with an adjusting groove 232 in the inside, and the worm 26 is rotatably installed in the adjusting groove 232. The adjusting groove 232 provides a rotating space for the worm 26.

[0028] The diameter of the adjusting plug 25 outside is smaller than the diameter of the adjusting plug 25 inside, the adjusting plug 25 outside is provided with a baffle 251, the adjusting plug 25 is fixedly installed on one side and is provided with a worm wheel 252, the worm wheel 252 is rotatably installed in the adjusting groove 232, and the worm wheel 252 is matched with the worm 26. When the adjusting plug 25 rotates, the traction line 24 collected by the adjusting plug 25 moves to the outside of the adjusting plug 25, so that more traction lines 24 can be accommodated, and the worm 26 drives the worm 26 to rotate, and the worm wheel 252 drives the adjusting plug 25 to rotate to collect the traction line 24, so that the correction spring 21 is bent, and the bent correction spring 21 is locked.

[0029] The connecting head 27 has various models, the front end of the connecting head 27 is in a tapered structure, the inner diameter of the front end of the connecting head 27 is smaller than the outer diameter of the circulating pipeline 1, and the connecting grooves 271 are equidistantly formed on the connecting head 27. When the connecting head 27 is connected with the connecting cap 28, the front end of the connecting head 27 is extruded and shrunk to fix the circulating pipeline 1.

[0030] Embodiment 2

[0031] When the connecting head 27 and the connecting cap 28 of the utility model are connected, the connecting cap 28 extrudes the connecting head 27, so that the connecting head 27 is shrunk to fix the circulating pipeline 1;

[0032] The traction line 24 of the utility model can withstand the bending strength of the correction spring 21;

[0033] The worm 26 is provided with a wrench at the top, so that the rotation of the worm 26 is facilitated;

[0034] The correction spring 21 has various models, and the correction spring 21 is matched with the circulating pipeline 1.

[0035] Embodiment 3

[0036] Working principle: when installing the extracorporeal circulation pipeline 1, the user first removes the connecting cap 28 on the connecting head 27, then the user inserts the circulation pipeline 1 through the through hole 221 and penetrates the correction spring 21, and then inserts the connecting cap 28 through the circulation pipeline 1 and is fixedly connected with the connecting head 27, so as to fix the correction mechanism 2 on the circulation pipeline 1, the circulation pipeline 1 becomes straight under the action of the correction spring 21, when the bending degree of the circulation pipeline 1 is to be adjusted, the user rotates the worm 26, the worm 26 drives the worm wheel 252 to rotate after rotating, and the worm wheel 252 drives the adjusting bolt 25 to rotate after rotating, when the adjusting bolt 25 rotates, the adjusting bolt 25 drives the traction line 24 to contract, the traction line 24 pulls the correction spring 21 to bend after contracting, and the more the traction line 24 contracts, the greater the bending degree of the correction spring 21, the correction spring 21 bends at the same time, and the circulation pipeline 1 bends, so that the winding of the circulation pipeline 1 in the complex pipeline can be avoided, and the blockage of the circulation pipeline 1 after bending to affect the operation effect can also be avoided.

Claims

1. An extracorporeal circulation tubing bend corrector, characterized in that, The device includes a circulation pipe (1) and a correction mechanism (2). The correction mechanism (2) includes a correction spring (21) sleeved on the outside of the circulation pipe (1). A fixed seat (22) is provided on one side of the correction spring (21), and an adjusting seat (23) is provided on the other side of the correction spring (21). A traction line (24) is fixedly installed on one side of the fixed seat (22), and an adjusting bolt (25) is rotatably installed on one side of the adjusting seat (23). The other end of the traction line (24) is fixedly installed on the adjusting bolt (25). A worm gear (26) is rotatably installed inside the adjusting seat (23). A connector (27) is provided on one side of the fixed seat (22) and the adjusting seat (23), and a connecting nut is threaded on the outside of the connector (27).

2. The extracorporeal circulation tubing bend corrector according to claim 1, characterized in that, The corrective spring (21) comes in various models, and the elastic coefficient of the corrective spring (21) is greater than that of the circulation pipe (1).

3. The extracorporeal circulation tubing bend corrector according to claim 1, characterized in that, The fixing seat (22) has a through hole (221) in the middle, and the through hole (221) is concentric with the corrective spring (21). A protrusion (222) is provided on one side of the fixing seat (22), and one end of the traction line (24) is fixedly installed on the protrusion (222).

4. The extracorporeal circulation tubing bend corrector according to claim 1, characterized in that, The adjusting seat (23) has a through hole (221) in the middle, and an adjusting block (231) is provided on one side of the adjusting seat (23). An adjusting groove (232) is provided inside the adjusting block (231), and a worm gear (26) is rotatably installed in the adjusting groove (232).

5. The extracorporeal circulation tubing bend corrector according to claim 1, characterized in that, The outer diameter of the adjusting bolt (25) is smaller than the inner diameter of the adjusting bolt (25). A baffle (251) is provided on the outer side of the adjusting bolt (25). A worm wheel (252) is fixedly installed on one side of the adjusting bolt (25). The worm wheel (252) is rotatably installed in the adjusting groove (232). The worm wheel (252) is adapted to the worm (26).

6. The extracorporeal circulation tubing bend corrector according to claim 1, characterized in that, The connector (27) has various models. The front end of the connector (27) is tapered. The inner diameter of the front end of the connector (27) is smaller than the outer diameter of the circulation pipe (1). Connecting grooves (271) are provided at equal intervals on the connector (27).

Images