CN110179565B

CN110179565B - Device for winding artificial blood vessel woven by blending PHBV and PLA

Info

Publication number: CN110179565B
Application number: CN201910478242.4A
Authority: CN
Inventors: 解见业; 张雪娟; 尹海峡
Original assignee: Affiliated Hospital of University of Qingdao
Current assignee: Affiliated Hospital of University of Qingdao
Priority date: 2019-06-03
Filing date: 2019-06-03
Publication date: 2021-02-23
Anticipated expiration: 2039-06-03
Also published as: CN110179565A

Abstract

The invention discloses a device for winding an artificial blood vessel co-woven by PHBV and PLA, which comprises a device main body and an artificial blood vessel reciprocating winding device fixedly arranged on the device main body, wherein the artificial blood vessel reciprocating winding device comprises a main shaft rotating device and a reel pressing device, the main shaft rotating device comprises a first working cavity fixedly arranged in the device main body, a first motor is fixedly arranged in the inner wall of the left side of the first working cavity, and an output shaft at the right end of the first motor is in power fit connection with a first rotating shaft which extends rightwards into the first working cavity; this device simple structure, the design is exquisite, it has promoted around establishing the aesthetic property of artifical blood vessel after accomplishing and the quantity that can hold artifical blood vessel in the winding groove has satisfied the demand of mill's high efficiency, high efficiency production simultaneously.

Description

Device for winding artificial blood vessel woven by blending PHBV and PLA

Technical Field

The invention relates to the technical field of artificial blood vessels, in particular to a device for winding an artificial blood vessel woven by blending PHBV and PLA.

Background

The artificial blood vessel woven by blending PHBV and PLA is made of a novel material, and needs to be wound in the production and processing process of the artificial blood vessel woven by blending PHBV and PLA, so that the quality of the artificial blood vessel woven by blending PHBV and PLA is reduced due to the winding disorder, density and impurity phenomena in the winding process.

Disclosure of Invention

The invention aims to provide a device for winding an artificial blood vessel co-woven by PHBV and PLA, which is used for overcoming the defects in the prior art.

The device for winding the artificial blood vessel co-woven by PHBV and PLA comprises a device body and an artificial blood vessel reciprocating winding device fixedly arranged on the device body, wherein the artificial blood vessel reciprocating winding device comprises a main shaft rotating device and a reel pressing device, the main shaft rotating device comprises a first working cavity fixedly arranged in the device body, a first motor is fixedly arranged in the inner wall of the left side of the first working cavity, an output shaft at the right end of the first motor is in power fit connection with a first rotating shaft which extends rightwards into the first working cavity, a first bevel gear is fixedly arranged on the first rotating shaft, a second bevel gear is meshed at the lower end of the first bevel gear, a rotatable second rotating shaft is fixedly arranged at the center of the second bevel gear, a first working block capable of sliding left and right is arranged in the first working cavity, a rotatable third rotating shaft is fixedly arranged in the left end of the first working block, a third bevel gear meshed with the right end of the second bevel gear is fixedly arranged on the third rotating shaft, a fourth bevel gear is meshed with the upper end of the third bevel gear, a rotatable fourth rotating shaft is fixedly arranged at the axle center of the fourth bevel gear, a first fixed block is fixedly arranged at the position of the left side of the upper end of the device body, a second working chamber is fixedly arranged in the first fixed block, a fifth bevel gear is fixedly arranged in the second working chamber in a manner of extending the upper end of the fourth rotating shaft into the second working chamber, a sixth bevel gear is meshed with the right end of the fifth bevel gear, a rotatable fifth rotating shaft is fixedly arranged at the axle center of the sixth bevel gear, a first straight gear is fixedly arranged at the position of the fifth rotating shaft on the right side of the sixth bevel gear, a second straight gear is meshed with the front end of the first straight gear, a rotatable sixth rotating shaft is fixedly arranged at the axle center of the second straight gear, and a worm is fixedly arranged at the position of the sixth rotating, a worm is meshed with a worm wheel, a rotatable seventh rotating shaft is fixedly arranged at the axis of the worm wheel, supporting blocks with bottoms fixedly connected to the upper end of the device body are symmetrically and fixedly arranged at the left end and the right end of the first fixed block, a second fixed block is fixedly arranged at the upper end of the first fixed block, a third working cavity is fixedly arranged in the second fixed block, a seventh bevel gear is fixedly arranged at the upper end of the seventh rotating shaft and extends into the third working cavity, an eighth bevel gear is meshed with the left end of the seventh bevel gear, a rotatable eighth rotating shaft is fixedly arranged at the axis of the eighth bevel gear, the eighth rotating shaft extends into the outside and is in rotating fit connection with the supporting blocks, a first shaft shoulder is fixedly arranged at the right extending part of the eighth rotating shaft, a spring with the left end fixedly connected with the right end of the first shaft shoulder is fixedly arranged at the right side position of the first shaft shoulder, and a square shaft sleeve is fixedly arranged at the right side, the winding device is characterized in that a winding wheel capable of sliding left and right is fixedly arranged on the square shaft sleeve, a winding groove is fixedly arranged on the winding wheel, and an artificial blood vessel is wound on the winding groove.

According to a further technical scheme, the reel pressing device comprises annular grooves which are fixedly arranged in the winding wheel and have different depths, a first groove with an upward opening is fixedly arranged at the position on the right side in the device main body, a second motor is fixedly arranged in the inner wall on the right side of the first groove, the left end of the second motor is in power fit connection with a lead screw which extends leftwards and enters the first groove, a second working block with the lower end in sliding fit connection with the bottom surface on the lower side of the first groove is in threaded fit connection with the lead screw, the left end of the lead screw continues to extend leftwards and enters the first working cavity to be in threaded fit connection with the first working block, a third motor is fixedly arranged in the upper end of the second working block, a ninth rotating shaft is fixedly arranged on the third rotating shaft, and is in rotating fit connection with the upper end of the second working block, the through-hole that runs through about set firmly in the swivel block, set firmly in the through-hole with the paired slide bearing of eighth pivot right-hand member, be located in the swivel block slide bearing downside position department sets firmly the extrusion stem that extends left, the extrusion stem left end extends the entering the ring channel is internal to set firmly the pulley base, running fit is connected with the tenth pivot on the pulley base, set firmly in the tenth pivot with the pulley that the inner wall was hugged closely on the ring channel left side.

According to the technical scheme, the artificial blood vessel reciprocating winding device and the reel pressing device are interlocked, so that the main shaft of the artificial blood vessel reciprocating winding device cannot rotate when the artificial blood vessel reciprocating winding device is not pressed, and the overall safety performance of the artificial blood vessel reciprocating winding device is improved.

According to the further technical scheme, the main shaft of the device has a self-locking function through the design of the worm and the worm wheel, and the situation that when power is cut off suddenly, the winding wheel rotates reversely under the action of the gravity of the artificial blood vessel to cause the artificial blood vessel wound in the front to be in a relaxed state again and do useless work is avoided.

The invention has the beneficial effects that: the invention has simple structure and convenient operation, when the winding process of the artificial blood vessel is carried out by the device, an operator fixedly connects one end of the artificial blood vessel to a winding wheel, a first motor is started to drive a first bevel gear to rotate through a first rotating shaft, the first bevel gear drives a second rotating shaft to rotate through a second bevel gear, the second bevel gear drives a fourth bevel gear to rotate through a third bevel gear, the fourth bevel gear drives a fifth bevel gear to rotate through a fourth rotating shaft, the fifth bevel gear drives a fifth rotating shaft to rotate through a sixth bevel gear, the fifth rotating shaft drives a second straight gear to rotate through a first straight gear, the second straight gear drives a worm to rotate through a sixth rotating shaft, the worm drives a seventh rotating shaft to rotate through a worm gear, the seventh rotating shaft drives an eighth bevel gear to rotate through a seventh bevel gear, the eighth bevel gear drives the winding wheel to rotate through an eighth rotating shaft, the winding wheel rotates along with, the extrusion rod is pushed into the annular grooves with different depths, the winding wheel rotates along with the eighth rotating shaft on the square shaft sleeve and reciprocates left and right under the action of the spring, the artificial blood vessel is wound on the winding wheel in order, when the artificial blood vessel on the winding wheel is fully wound, the second motor is started to drive the screw rod to rotate, the right movement of the second working block and the first working block is realized, the second working block drives the extrusion rod on the rotating block to leave the annular groove, meanwhile, the first working block drives the third bevel gear on the third rotating shaft to be disengaged from the engagement of the second bevel gear and the fourth bevel gear, the interlocking protection is realized, when the second working block moves to the rightmost position, the second motor stops, the third motor is started to drive the rotating block to rotate for one hundred eighty degrees through the ninth rotating shaft, and then an operator takes off the winding wheel and replaces a new winding wheel to finish the winding process of the artificial blood vessel, this device simple structure, the design is exquisite, it has promoted around establishing the aesthetic property of artifical blood vessel after accomplishing and the quantity that can hold artifical blood vessel in the winding groove has satisfied the demand of mill's high efficiency, high efficiency production simultaneously.

Drawings

FIG. 1 is a schematic view of the internal overall structure of a device for winding a PHBV and PLA co-woven artificial blood vessel of the invention;

FIG. 2 is a sectional view taken in the direction "A-A" of FIG. 1;

fig. 3 is a partially enlarged schematic view of "B" in fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-3, for the sake of convenience, the orientations described hereinafter being defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

Referring to fig. 1-3, the device for winding an artificial blood vessel co-woven by PHBV and PLA according to an embodiment of the present invention includes a device body 10, and an artificial blood vessel reciprocating winding device fixed on the device body 10, the artificial blood vessel reciprocating winding device includes a main shaft rotating device and a reel pressing device, the main shaft rotating device includes a first working chamber 11 fixed in the device body 10, a first motor 19 is fixed in the inner wall of the left side of the first working chamber 11, a first rotating shaft 12 extending rightward into the first working chamber 11 is connected to an output shaft of the right end of the first motor 19 in a power fit manner, a first bevel gear 13 is fixed on the first rotating shaft 12, a second bevel gear 14 is engaged at the lower end of the first bevel gear 13, a rotatable second rotating shaft 15 is fixed at the axis of the second bevel gear 14, a first working block 18 capable of sliding left and right is arranged in the first working chamber 11, a rotatable third rotating shaft 17 is fixedly arranged in the left end of the first working block 18, a third bevel gear 16 meshed with the right end of the second bevel gear 14 is fixedly arranged on the third rotating shaft 17, a fourth bevel gear 20 is meshed with the upper end of the third bevel gear 16, a rotatable fourth rotating shaft 21 is fixedly arranged at the axis of the fourth bevel gear 20, a first fixing block 22 is fixedly arranged at the position of the upper end of the device main body 10, which is on the left side, a second working chamber 23 is fixedly arranged in the first fixing block 22, a fifth bevel gear 24 is fixedly arranged at the upper end of the fourth rotating shaft 21, which extends into the second working chamber 23, a sixth bevel gear 25 is meshed with the right end of the fifth bevel gear 24, a rotatable fifth rotating shaft 26 is fixedly arranged at the axis of the sixth bevel gear 25, a first straight gear 27 is fixedly arranged at the position of the fifth rotating shaft 26, which is located on the right side 25 of the sixth bevel gear, and a second straight gear 28 is meshed with the front end of, the axle center of the second spur gear 28 is fixedly provided with a rotatable sixth rotating shaft 29, the sixth rotating shaft 29 is positioned at the left side position of the second spur gear 28 and is fixedly provided with a worm 30, the worm 30 is meshed with a worm wheel 31, the axle center of the worm wheel 31 is fixedly provided with a rotatable seventh rotating shaft 32, the left end and the right end of the first fixing block 22 are symmetrically and fixedly provided with supporting blocks 33 of which the bottoms are fixedly connected with the upper end of the device main body 10, the upper end of the first fixing block 22 is fixedly provided with a second fixing block 34, a third working chamber 35 is fixedly provided in the second fixing block 34, the upper end of the seventh rotating shaft 32 extends into the third working chamber 35 and is fixedly provided with a seventh bevel gear 36, the left end of the seventh bevel gear 36 is meshed with an eighth bevel gear 37, the axle center of the eighth bevel gear 37 is fixedly provided with a rotatable eighth rotating shaft 38, the eighth rotating shaft 38 extends into the outside and is connected, eighth pivot 38 extends right and has set firmly first shaft shoulder 39, lie in on the eighth pivot 38 first shaft shoulder 39 right side position department set firmly the left end with first shaft shoulder 39 right-hand member fixed connection's spring 40, lie in on the eighth pivot 38 spring 40 right side position department set firmly square axle sleeve 41, but set firmly winding wheel 42 of horizontal slip on the square axle sleeve 41, winding wheel 42 is last to set firmly winding groove 43, around being equipped with artificial blood vessel 44 on winding groove 43.

Advantageously or exemplarily, the reel pressing device comprises annular grooves 45 with different depths and fixed in the spool 42, a first groove 46 with an upward opening is fixed in the device body 10 at a position on the right side, a second motor 47 is fixed in the inner wall of the right side of the first groove 46, a lead screw 48 extending leftwards into the first groove 46 is connected with the left end of the second motor 47 in a power fit manner, a second working block 49 with a lower end connected with the bottom surface of the lower side of the first groove 46 in a sliding fit manner is connected with the lead screw 48 in a threaded fit manner, the left end of the lead screw 48 continuously extends leftwards into the first working chamber 11 to be connected with the first working block 18 in a threaded fit manner, a third motor 50 is fixed in the upper end of the second working block 49, a ninth rotating block 52 connected with the upper end of the second working block 49 in a rotating fit manner is connected with the upper end of the third motor 50 in a power fit manner, and a ninth rotating block 51 is fixed on the ninth rotating shaft 51, a through hole 53 penetrating left and right is fixedly arranged in the rotating block 52, a sliding bearing 54 paired with the right end of the eighth rotating shaft 38 is fixedly arranged in the through hole 53, a squeezing rod 55 extending leftwards is fixedly arranged at the position of the lower side of the sliding bearing 54 in the rotating block 52, the left end of the squeezing rod 55 extends into the annular groove 45 and is fixedly provided with a pulley base 56, the pulley base 56 is connected with a tenth rotating shaft 58 in a rotating matching manner, and a pulley 59 tightly attached to the inner wall of the left side of the annular groove 45 is fixedly arranged on the tenth rotating shaft 58.

Advantageously or exemplarily, the device interlocks the artificial blood vessel reciprocating winding device and the reel compressing device, so that the main shaft of the device cannot rotate when the device is not compressed, and the overall safety performance of the device is increased.

Advantageously or exemplarily, the main shaft of the device has a self-locking function through the design of the worm and the worm gear, and the wire winding wheel 42 is prevented from being reversed under the action of the gravity of the artificial blood vessel 44 when the power is suddenly cut off, so that the artificial blood vessel wound in the front is changed into a relaxed state again to do useless work.

When the device is used for winding an artificial blood vessel, an operator fixedly connects one end of the artificial blood vessel to a winding wheel 42, starts a first motor 19 to drive a first bevel gear 13 to rotate through a first rotating shaft 12, the first bevel gear 13 drives a second rotating shaft 15 to rotate through a second bevel gear 14, the second bevel gear 14 drives a fourth bevel gear 20 to rotate through a third bevel gear 16, the fourth bevel gear 20 drives a fifth bevel gear 24 to rotate through a fourth rotating shaft 21, the fifth bevel gear 24 drives a fifth rotating shaft 26 to rotate through a sixth bevel gear 25, the fifth rotating shaft 26 drives a second spur gear 28 to rotate through a first spur gear 27, the second spur gear 28 drives a worm 30 to rotate through a sixth rotating shaft 29, the worm 30 drives a seventh rotating shaft 32 to rotate through a worm wheel 31, the seventh rotating shaft 32 drives an eighth bevel gear 37 to rotate through a seventh bevel gear 36, the eighth bevel gear 37 drives the winding wheel 42 to rotate through an eighth rotating shaft 38, with the rotation of the winding wheel 42, the extrusion rod 55 is pushed into the annular grooves 45 with different depths, under the action of the spring 40, the winding wheel 42 rotates on the square shaft sleeve 41 along with the rotation of the eighth rotating shaft 38 and reciprocates left and right, so that the artificial blood vessel 44 is neatly wound on the winding wheel 42, when the artificial blood vessel 44 on the winding wheel 42 is fully wound, the second motor 47 is started to drive the screw 48 to rotate, the right movement of the second working block 49 and the first working block 18 is realized, the second working block 49 drives the extrusion rod 55 on the rotating block 52 to leave the annular groove 45, meanwhile, the first working block 18 drives the third bevel gear 16 on the third rotating shaft 17 to be disengaged from the second bevel gear 14 and the fourth bevel gear 20, so that the interlocking protection is realized, when the second working block 49 moves to the rightmost position, the second motor 47 stops, the third motor 50 is started to drive the rotating block 52 to rotate by one hundred eighty degrees through the ninth rotating shaft 51, the operator then removes the reel 42 and replaces it with a new reel 42 to complete the winding process of the vascular prosthesis.

It will be apparent to those skilled in the art that various modifications may be made to the above embodiments without departing from the general spirit and concept of the invention. All falling within the scope of protection of the present invention. The protection scheme of the invention is subject to the appended claims.

Claims

1. A device for winding artificial blood vessels woven by blending PHBV and PLA is characterized in that: the artificial blood vessel reciprocating winding device comprises a device main body and an artificial blood vessel reciprocating winding device fixedly arranged on the device main body, wherein the artificial blood vessel reciprocating winding device comprises a main shaft rotating device and a reel pressing device, the main shaft rotating device comprises a first working chamber fixedly arranged in the device main body, a first motor is fixedly arranged in the inner wall of the left side of the first working chamber, an output shaft at the right end of the first motor is in power fit connection with a first rotating shaft which extends rightwards into the first working chamber, a first bevel gear is fixedly arranged on the first rotating shaft, the lower end of the first bevel gear is meshed with a second bevel gear, a rotatable second rotating shaft is fixedly arranged at the center of the second bevel gear, a first working block capable of sliding leftwards and rightwards is arranged in the first working chamber, a rotatable third rotating shaft is fixedly arranged in the left end of the first working block, a third bevel gear meshed with the right end of the second bevel gear is fixedly, the third bevel gear upper end meshing has the fourth bevel gear, fourth bevel gear axle center department has set firmly rotatable fourth pivot, device main part upper end left side position department has set firmly first fixed block, the first fixed block has set firmly the second working chamber, fourth pivot upper end extends to get into the second working chamber has set firmly fifth bevel gear, fifth bevel gear right-hand member meshing has the sixth bevel gear, sixth bevel gear axle center department has set firmly rotatable fifth pivot, it is located to lie in on the fifth pivot the sixth bevel gear right side position department has set firmly first straight gear, first straight gear front end meshing has the second straight-tooth gear, second straight-tooth gear axle center department has set firmly rotatable sixth pivot, lie in on the sixth pivot the second straight-tooth gear left side position department has set firmly the worm, the worm meshing has the worm wheel, worm wheel axle center department has set firmly rotatable seventh pivot, the left end and the right end of the first fixed block are symmetrically and fixedly provided with supporting blocks, the bottoms of the supporting blocks are fixedly connected to the upper end of the device main body, the upper end of the first fixed block is fixedly provided with a second fixed block, the second fixed block is fixedly provided with a third working cavity, the upper end of a seventh rotating shaft extends into the third working cavity and is fixedly provided with a seventh bevel gear, the left end of the seventh bevel gear is meshed with an eighth bevel gear, the axle center of the eighth bevel gear is fixedly provided with a rotatable eighth rotating shaft, the eighth rotating shaft extends into the outside and is in rotating fit connection with the supporting blocks, the eighth rotating shaft extends rightwards and is fixedly provided with a first shaft shoulder, the position of the eighth rotating shaft, on the right side of the first shaft shoulder, is fixedly provided with a spring, on the right side of the spring, is fixedly provided with a square shaft sleeve, and on the square shaft sleeve, a winding wheel capable of sliding leftwards and, a wire winding groove is fixedly arranged on the wire winding wheel, and an artificial blood vessel is wound on the wire winding groove;

the reel pressing device comprises annular grooves with different depths of all positions fixedly arranged in the winding wheel, a first groove with an upward opening is fixedly arranged at the position on the right side in the device main body, a second motor is fixedly arranged in the inner wall on the right side of the first groove, the left end of the second motor is in power fit connection with a lead screw extending leftwards into the first groove, a second working block with the lower end in sliding fit connection with the bottom surface on the lower side of the first groove is in threaded fit connection with the lead screw, the left end of the lead screw continuously extends leftwards into the first working cavity to be in threaded fit connection with the first working block, a third motor is fixedly arranged in the upper end of the second working block, a ninth rotating shaft is fixedly connected with the upper end of the third motor in power fit connection, a rotating block in rotating fit connection with the upper end of the second working block is fixedly arranged on the ninth rotating shaft, and a through hole penetrating leftwards and rightwards is fixedly arranged in the rotating block, a sliding bearing matched with the right end of the eighth rotating shaft is fixedly arranged in the through hole, an extrusion rod extending leftwards is fixedly arranged at the position, located on the lower side of the sliding bearing, in the rotating block, the left end of the extrusion rod extends into the annular groove, a pulley base is fixedly arranged in the annular groove, a tenth rotating shaft is connected onto the pulley base in a rotating matching mode, and a pulley tightly attached to the inner wall of the left side of the annular groove is fixedly arranged on the tenth rotating shaft;

the device interlocks the artificial blood vessel reciprocating winding device and the reel compressing device, realizes that the main shaft of the device can not rotate when not compressed, and increases the overall safety performance of the device;

the main shaft of the device has a self-locking function through the design of the worm and the worm wheel, and the situation that when power is cut off suddenly, the winding wheel rotates reversely under the action of the gravity of the artificial blood vessel, so that the artificial blood vessel wound in front is changed into a loose state again to do useless work is avoided.