CN111571954A

CN111571954A - Preparation cardiovascular support mould

Info

Publication number: CN111571954A
Application number: CN202010309314.5A
Authority: CN
Inventors: 吴学忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-08-25
Anticipated expiration: 2040-04-20
Also published as: CN111571954B

Abstract

The invention discloses a cardiovascular stent preparation mold which comprises a first tube, wherein a second tube is arranged in the first tube, a third tube is arranged in the second tube, a separation mechanism is fixedly connected to the surface of the first tube and comprises a separation bin, a first rack is connected to the inner wall of the separation bin in a sliding mode, a first transmission plate is fixedly connected to the bottom of the first rack, the upper surface of the first transmission plate is fixedly connected with the bottom of the second tube, a first gear is meshed with teeth on the first rack, two ends of a positioning shaft are fixedly connected with the inner wall of the separation bin, and a second rack is meshed with one side, far away from the first rack, of the first gear. According to the invention, through the matching use of the structures, the problems that in the actual use process, after the first pipe and the second pipe are injection-molded along with the vascular stent, the first pipe and the second pipe are inconvenient to separate from the vascular stent, the vascular stent is easy to damage during separation, and the working efficiency is reduced are solved.

Description

Preparation cardiovascular support mould

Technical Field

The invention relates to the technical field of medical equipment, in particular to a mould for preparing a cardiovascular stent.

Background

The aorta is the most bulky artery in the human body, and is sent out from the left ventricle of the heart, slightly arched upwards, rightwards and downwards, and descends along the spine, so that a plurality of smaller arteries are separated in the thoracic cavity and the abdominal cavity. The aorta is the main conduit for blood transport to all parts of the body. Also called the aorta; the vascular structure of the human body comprises three layers, namely, an intima, a media and an adventitia. Each layer is composed of different cells. An ideal vascular stent should have a similar hierarchical composition structure as a human blood vessel; the conventional process for preparing vascular stents has drawbacks, and therefore, as a method for producing vascular stents, an injection molding method is proposed, for example, as disclosed in chinese patent CN107738406A, a mold for preparing cardiovascular stents comprises a first hollow YG8 cemented carbide tube, a second hollow YG8 cemented carbide tube, a third hollow YG8 cemented carbide tube, and a base, wherein a chromium layer is plated in a mold hole of the mold, and the thickness of the chromium layer is 0.03-0.04 mm. The die for preparing the cardiovascular stent has the advantages of ingenious and concise structure, high dimensional precision of the produced product, good surface quality, long service life of the die, capability of preparing the cardiovascular stent with a three-layer structure and strong practicability;

however, in the actual production process, after the first tube and the second tube are injection molded along with the vascular stent, the first tube and the second tube are inconvenient to separate from the vascular stent, the vascular stent is easy to damage during separation, and the working efficiency is reduced.

Disclosure of Invention

The invention aims to provide a mould for preparing a cardiovascular stent, which improves the traditional device and solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a preparation cardiovascular support mould, includes pipe one, be equipped with pipe two in the pipe one, be equipped with pipe three in the pipe two, the fixed surface of pipe one is connected with separating mechanism.

The separating mechanism comprises a separating bin, supporting legs are fixedly connected to the side face of the separating bin, a first rack is slidably connected to the inner wall of the separating bin, a first transmission plate is fixedly connected to the bottom of the first rack, the upper surface of the first transmission plate is fixedly connected with the bottom of a second pipe, a first gear is meshed with teeth on the first rack, a positioning shaft is arranged on the inner wall of the first gear in a limiting and rotating mode, two ends of the positioning shaft are fixedly connected with the inner wall of the separating bin, a second rack is meshed with one side, far away from the first rack, of the first gear, a connecting plate is fixedly connected to the side face of the second rack, one end, far away from the second rack, of the connecting plate is fixedly connected with the side face of the first pipe, a second transmission plate is fixedly connected to the bottom of the second rack, a threaded hole is formed in the center of the circle of the upper surface of the second, the surface of the transmission shaft penetrates through the separation bin and is limited and rotated on the separation bin, and the surface of the transmission shaft is fixedly connected with a power adjusting mechanism.

Preferably, the power adjusting mechanism includes two gears two, two the inner wall of gear two is connected with the fixed surface of transmission shaft, the lower fixed surface of disengagement bin is connected with fixed cover, the inner wall fixedly connected with motor of fixed cover, the left end fixedly connected with connecting axle of output shaft on the motor, the left end fixedly connected with carousel of connecting axle, the left side fixedly connected with arc pinion rack of carousel, tooth on the arc pinion rack and the surface engagement of gear two.

Preferably, the bottom of the inner wall of the separation bin is fixedly connected with a limiting rod, and the surface of the limiting rod penetrates through the transmission plate and is connected with the transmission plate in a sliding mode.

Preferably, the number of the limiting rods is two, and the two limiting rods are symmetrically arranged by using the vertical central line of the screw rod.

Preferably, the side surface of the first transmission plate is an arc-shaped surface, and the first transmission plate is connected with the inner wall of the separation bin in a sliding mode through the arc-shaped surface on the first transmission plate.

Preferably, the number of the connecting plates is two, and the two connecting plates are symmetrically arranged by a vertical central line of the first pipe.

Preferably, the top of the screw is fixedly connected with an anti-dropping plate.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, through the arrangement of the separation mechanism, the first tube and the second tube are separated from the vascular stent more conveniently and rapidly, the working efficiency is improved, and the use is more stable and safe.

The screw rod synchronously performs limiting rotation in the separation bin by driving the transmission shaft to rotate, and after the screw rod rotates, the threaded hole in the second transmission plate and the surface of the screw rod rotate relatively, so that the second transmission plate ascends or descends;

when the second transmission plate rises, the second transmission plate is driven by the second rack to enable the connecting plate to rise synchronously; meanwhile, the rack drives the transmission plate to move downwards for a moment through the transmission of the first gear, and the second tube on the transmission plate also moves downwards synchronously, so that the first tube moves upwards, the second tube moves downwards, and the separation of the first tube and the second tube from the surface of the blood vessel stent is accelerated by carrying out deviation movement; in the same way, the screw rod is reversely driven to rotate, the first pipe and the second pipe move oppositely through transmission, and the first pipe and the second pipe can be further separated from the blood vessel support;

through the setting of power adjustment mechanism, can make the screw rod carry out continuous reciprocating rotation, through the transmission, also make pipe one and pipe two carry out continuous relative motion and the motion that deviates from each other, through the motion that relapses, accelerated with vascular support's separation.

Thirdly, the invention solves the problems that in the actual use process, after the first pipe and the second pipe are injection molded along with the vascular stent, the first pipe and the second pipe are inconvenient to separate from the vascular stent, the vascular stent is easy to damage during separation, and the working efficiency is reduced.

Drawings

FIG. 1 is a front cross-sectional view of a separation chamber according to the present invention;

fig. 2 is a left side view of the turntable of the present invention.

In the figure: the device comprises a 1-pipe I, a 2-pipe II, a 3-pipe III, a 4-separating mechanism, a 5-separating bin, a 51-supporting leg, a 6-rack I, a 7-transmission plate I, an 8-gear I, a 9-positioning shaft, a 10-rack II, a 11-connecting plate, a 12-transmission plate II, a 13-threaded hole, a 131-screw rod, a 132-transmission shaft, a 14-power adjusting mechanism, a 15-gear II, a 16-fixed sleeve, a 17-motor, an 18-connecting shaft, a 19-rotating disc, a 20-arc-shaped toothed plate, a 21-limiting rod and a 22-anti-falling plate.

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 to 2, the present invention provides a technical solution: the utility model provides a preparation cardiovascular support mould, including a pipe 1, be equipped with two 2 in the pipe 1, be equipped with three 3 in the pipe two 2, a pipe 1, two 2, three 3 are cavity YG8 carbide pipe, downthehole chromium layer that has plated, the chromium coating thickness is 0.03-0.04mm, through a pipe 1, two 2 and three 3 cooperation of pipe, can prepare three layer construction's cardiovascular support, therefore, the clothes hanger is strong in practicability, the fixed surface of a pipe 1 is connected with separating mechanism 4, through separating mechanism 4's setting, make the separation of a pipe 1 and two 2 and vascular support convenient and fast more, the work efficiency is improved, it is more stable safe to use.

The separating mechanism 4 comprises a separating bin 5, a supporting leg 51 is fixedly connected to the side face of the separating bin 5, a first rack 6 is connected to the inner wall of the separating bin 5 in a sliding mode, a first transmission plate 7 is fixedly connected to the bottom of the first rack 6, a limiting rod 21 is fixedly connected to the bottom of the inner wall of the separating bin 5, the surface of the limiting rod 21 penetrates through the first transmission plate 7 and is connected with the first transmission plate 7 in a sliding mode, after the first transmission plate 7 is penetrated through by the limiting rod 21, the movement track of the first transmission plate 7 is limited, and therefore the first transmission plate 7 can further perform stable lifting movement in the separating bin 5; the number of the limiting rods 21 is two, the two limiting rods 21 are symmetrically arranged along the vertical central line of the screw 131, and the left and right stress of the first transmission plate 7 is more balanced and the lifting is more stable through the arrangement of the two limiting rods 21; the side surface of the first transmission plate 7 is an arc-shaped surface, the first transmission plate 7 is in sliding connection with the inner wall of the separation bin 5 through the arc-shaped surface on the first transmission plate, and the friction resistance between the first transmission plate 7 and the inner wall of the separation bin 5 is reduced through the arrangement of the arc-shaped surface on the side surface of the first transmission plate 7, so that the movement is smoother; the upper surface of a transmission plate I7 is fixedly connected with the bottom of a pipe II 2, teeth on a rack I6 are meshed with a gear I8, the inner wall of the gear I8 is limited to rotate and provided with a positioning shaft 9, two ends of the positioning shaft 9 are fixedly connected with the inner wall of a separation bin 5, one side, far away from the rack I6, of the gear I8 is meshed with a rack II 10, the side face of the rack II 10 is fixedly connected with a connecting plate 11, one end, far away from the rack II 10, of the connecting plate 11 is fixedly connected with the side face of the pipe I1, the number of the connecting plates 11 is two, the two connecting plates 11 are symmetrically arranged with the vertical central line of the pipe I1, the pipe I1 is clamped and fixed oppositely through the two connecting plates 11, the pipe I1 can be driven to lift more stably, and meanwhile, the; the bottom of the second rack 10 is fixedly connected with a second transmission plate 12, and when the second transmission plate 12 ascends, the second transmission plate is transmitted by the second rack 10, so that the connecting plate 11 also ascends synchronously; meanwhile, the rack I6 drives the transmission plate I7 to move downwards through the transmission of the gear I8, the tube II 2 on the transmission plate I7 also moves downwards synchronously, and therefore the tube I1 moves upwards, the tube II 2 moves downwards, and the separation of the tube I1 and the tube II 2 from the surface of the blood vessel support is accelerated through the deviation movement; in the same way, the screw 131 is reversely driven to rotate, the first tube 1 and the second tube 2 move oppositely through transmission, and the first tube 1 and the second tube 2 can be further separated from the vascular stent; a threaded hole 13 is formed in the center of the circle of the upper surface of the second transmission plate 12, a screw 131 is screwed on the inner wall of the threaded hole 13, the screw 131 synchronously performs limiting rotation in the separation bin 5 by driving the transmission shaft 132 to rotate, and after the screw 131 rotates, the threaded hole 13 in the second transmission plate 12 and the surface of the screw 131 rotate relatively, so that the second transmission plate 12 rises or falls; the top of the screw 131 is fixedly connected with the anti-falling plate 22, and through the arrangement of the anti-falling plate 22, the screw 131 can be prevented from excessively separating from the second transmission plate 12 due to the fact that the screw 131 excessively rotates up and down on the second transmission plate 12, so that use faults are caused; the bottom of the screw 131 is fixedly connected with a transmission shaft 132, the surface of the transmission shaft 132 penetrates through the separation bin 5 and rotates in a limiting manner on the separation bin 5, the surface of the transmission shaft 132 is fixedly connected with a power adjusting mechanism 14, the screw 131 can continuously rotate in a reciprocating manner through the arrangement of the power adjusting mechanism 14, the first pipe 1 and the second pipe 2 can continuously move in opposite directions and move away from each other through transmission, and the separation from the vascular stent is accelerated through repeated movement; the power adjusting mechanism 14 comprises two gears 15, the inner walls of the two gears 15 are fixedly connected with the surface of the transmission shaft 132, the lower surface of the separation bin 5 is fixedly connected with a fixed sleeve 16, the inner wall of the fixed sleeve 16 is fixedly connected with a motor 17, the left end of an output shaft on the motor 17 is fixedly connected with a connecting shaft 18, the left end of the connecting shaft 18 is fixedly connected with a turntable 19, the left side of the turntable 19 is fixedly connected with an arc-shaped toothed plate 20, teeth on the arc-shaped toothed plate 20 are meshed with the surface of the gears 15, when the power adjusting mechanism is used, the motor 17 is connected with an external power supply and turns on a switch, the output shaft on the motor 17 drives the connecting shaft 18 to synchronously rotate, the turntable 19 and the arc-shaped toothed plate 20 rotate along with the same, when the teeth on the arc-shaped toothed plate 20 are sequentially meshed with the two gears 15, the, make two gears 15 can carry out opposite direction's rotation when receiving arc pinion rack 20 drive to rotate, and rotation amplitude equals, make transmission shaft 132 can carry out reciprocating rotation from this, the last screw 131 of transmission shaft 132 also carries out reciprocating rotation thereupon, through the continuous change direction of rotation of screw 131, make two driving plate 12 can carry out reciprocating elevating movement under the cooperation of screw hole 13, through the transmission, finally realize the motion of moving towards each other and back to each other between pipe 1 and the pipe 2, through repeated relative motion, progressively realize with the separation of vascular support.

The working principle is as follows: when the cardiovascular stent preparation mold is used, the separation of the first tube 1 and the second tube 2 from the vascular stent is more convenient and quicker through the arrangement of the separation mechanism 4, the working efficiency is improved, and the use is more stable and safer; the screw 131 synchronously performs limit rotation in the separation bin 5 by driving the rotation of the transmission shaft 132, and after the screw 131 rotates, the threaded hole 13 on the second transmission plate 12 and the surface of the screw 131 relatively rotate, so that the second transmission plate 12 ascends or descends; when the second transmission plate 12 ascends, the second transmission plate is transmitted by the second rack 10, so that the connecting plate 11 also ascends synchronously; meanwhile, the rack I6 drives the transmission plate I7 to move downwards through the transmission of the gear I8, the tube II 2 on the transmission plate I7 also moves downwards synchronously, and therefore the tube I1 moves upwards, the tube II 2 moves downwards, and the separation of the tube I1 and the tube II 2 from the surface of the blood vessel support is accelerated through the deviation movement; in the same way, the screw 131 is reversely driven to rotate, the first tube 1 and the second tube 2 move oppositely through transmission, and the first tube 1 and the second tube 2 can be further separated from the vascular stent; through the arrangement of the power adjusting mechanism 14, the screw 131 can continuously rotate in a reciprocating manner, the first tube 1 and the second tube 2 can continuously move in the opposite direction and move away from each other through transmission, and the separation from the intravascular stent is accelerated through repeated movement; through the cooperation use between the above-mentioned structure, solved in the in-service use process, because pipe one 1 and pipe two 2 are along with the intravascular stent injection moulding back, pipe one 1 and pipe two 2 are comparatively inconvenient with intravascular stent's separation, still lead to intravascular stent impaired when the separation easily, have reduced work efficiency's problem.

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 preparation cardiovascular support mould, includes pipe one (1), be equipped with in pipe one (1) and manage two (2), be equipped with in pipe two (2) and manage three (3), its characterized in that: the surface of the first pipe (1) is fixedly connected with a separating mechanism (4);

the separating mechanism (4) comprises a separating bin (5), supporting legs (51) are fixedly connected to the side face of the separating bin (5), a rack I (6) is connected to the inner wall of the separating bin (5) in a sliding mode, a transmission plate I (7) is fixedly connected to the bottom of the rack I (6), the upper surface of the transmission plate I (7) is fixedly connected with the bottom of a pipe II (2), a gear I (8) is meshed with teeth on the rack I (6), a positioning shaft (9) is arranged on the inner wall of the gear I (8) in a limiting and rotating mode, two ends of the positioning shaft (9) are fixedly connected with the inner wall of the separating bin (5), a rack II (10) is meshed with one side of the gear I (8) far away from the rack I (6), a connecting plate (11) is fixedly connected to the side face of the rack II (10), one end of the connecting plate (11) far away from the rack II (10) is fixedly connected with the side face of the pipe, the bottom fixedly connected with driving plate two (12) of rack two (10), screw hole (13) have been seted up to the centre of a circle department of driving plate two (12) upper surface, the inner wall spiro union of screw hole (13) has screw rod (131), the bottom fixedly connected with transmission shaft (132) of screw rod (131), the surface of transmission shaft (132) runs through separation storehouse (5) and spacing rotation on separation storehouse (5), the fixed surface of transmission shaft (132) is connected with power adjustment mechanism (14).

2. The mold for preparing cardiovascular stents according to claim 1, wherein: power adjustment mechanism (14) include two gears two (15), two the inner wall of gear two (15) is connected with the fixed surface of transmission shaft (132), the fixed cover (16) of lower fixed surface of separating bin (5) is connected with, the inner wall fixedly connected with motor (17) of fixed cover (16), the left end fixedly connected with connecting axle (18) of output shaft is gone up in motor (17), the left end fixedly connected with carousel (19) of connecting axle (18), the left side fixedly connected with arc pinion rack (20) of carousel (19), tooth and the surface toothing of gear two (15) on arc pinion rack (20).

3. The mold for preparing cardiovascular stents according to claim 1, wherein: the bottom fixedly connected with gag lever post (21) of separation storehouse (5) inner wall, the surface of gag lever post (21) runs through driving plate (7) and with driving plate (7) sliding connection.

4. A mold for making a cardiovascular stent according to claim 3, wherein: the number of the limiting rods (21) is two, and the two limiting rods (21) are symmetrically arranged by using the vertical central line of the screw rod (131).

5. The mold for preparing cardiovascular stents according to claim 1, wherein: the side surface of the first transmission plate (7) is an arc-shaped surface, and the first transmission plate (7) is connected with the inner wall of the separation bin (5) in a sliding mode through the arc-shaped surface on the first transmission plate.

6. The mold for preparing cardiovascular stents according to claim 1, wherein: the number of the connecting plates (11) is two, and the two connecting plates (11) are symmetrically arranged by using the vertical central line of the first pipe (1).

7. The mold for preparing cardiovascular stents according to claim 1, wherein: the top of the screw (131) is fixedly connected with an anti-drop plate (22).