An artificial blood vessel texturing and shaping apparatus

Abstract

The application discloses a kind of artificial blood vessel texturing shaping equipment, the equipment under the extrusion of inner and outer mould, make artificial blood vessel blank pipe realize stable, uniform, continuous texturing process, after the heating of outer mould buckling, make artificial blood vessel realize shaping.This equipment can avoid the occurrence of artificial blood vessel in texturing process twist phenomenon, improve the compliance and appearance consistency of blood vessel, ensure the stability of artificial blood vessel production quality, and heat shaping in texturing process, one-time realization of the texturing and shaping process of blood vessel, save time and effort, improve artificial blood vessel production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of artificial blood vessel repair, and particularly relates to an artificial blood vessel texturing and shaping device. BACKGROUND

[0002] In the medical field, the manufacturing of artificial blood vessels is very important. In the prior art, the processing and production of artificial blood vessels is mainly realized by formulating corresponding processing procedures and methods. However, in the manufacturing process of artificial blood vessels, the phenomenon of uneven twisting and pulling of the texture often occurs, thereby affecting the stability of the artificial blood vessel product. SUMMARY

[0003] The present application solves the problems in the prior art. An artificial blood vessel texturing and shaping device is provided, in which a blank pipe of artificial blood vessel is assembled to a core mold, the blank pipe of artificial blood vessel is extruded by an outer mold and the core mold, the process of the blank pipe of artificial blood vessel in the outer mold and the core mold is formed, after the formation of the corrugated texture, the blank pipe after texturing is shaped by heating of the outer mold, and the uniformity of the corrugated texture of the texturing mold is ensured by machining, so as to solve the phenomenon of uneven twisting and pulling of the texture in the texturing process, and to ensure the production quality stability of the artificial blood vessel. Only one clamping is required in the texturing process, the two processes of texturing and shaping can be realized, time and labor are saved, and the production efficiency is improved.

[0004] To achieve the above object, the present application provides the following technical scheme: the present application comprises a mounting plate, a positioning cylinder clamp mounting plate, a hollow cylinder clamp, a texturing outer mold one, a texturing outer mold two, a texturing core mold, a chuck, a chuck fixing plate, a guide mold group one, an opening clamp air cylinder, and a guide mold group two.

[0005] The texturing core mold comprises a magnetic positioning rod, a core mold one, a core mold two, and a core mold three. The magnetic positioning rod is a magnetic rod, and the clamping parts of the two shaft ends of the core mold of different specifications are of a unified specification, so as to realize the universality of the equipment and process the texturing and shaping of artificial blood vessels of different specifications.

[0006] The texturing core mold has a positioning step at one end of the core mold mounting shaft of the magnetic positioning rod, so as to realize the positioning when the core mold one, the core mold two, and the core mold three are installed, and to ensure the consistency of the corrugated texture. The shaft diameter of the other end of the core mold mounting shaft is smaller than that of the core mold mounting shaft, so as to facilitate rapid demolding.

[0007] The included angle between the two edges of the core mold three of the texturing core mold and the symmetry axis is between 0° and 45°. After the artificial blood vessel is shaped, the corrugated texture of the artificial blood vessel is embedded in the corrugated texture of the texturing core mold. When demolding, the core mold three is slid to the center of the shaft after the magnetic positioning rod is pulled out, and then the core mold one, the core mold two, and the core mold three are all pulled out. Sliding to the center of the shaft during demolding can realize rapid demolding.

[0008] The two parts of the corrugated outer mold one and the corrugated outer mold two are consistent, and the corrugations of the two outer molds are semicircles, and the corrugations can form complete circles after the two outer molds are buckled, and the corrugation grooves are completely matched with the corrugation grooves of the corrugated core mold, thereby ensuring the consistency of the corrugation of the artificial blood vessel blank pipe.

[0009] The corrugated outer mold one comprises an outer mold and a heating rod, and the two ends of the outer mold are provided with positioning steps and are completely matched with the two side dimensions of the core mold one, the core mold two and the core mold three.

[0010] The heating rod of the corrugated outer mold one is electrified and heated after the outer mold is buckled to realize the heat setting of the artificial blood vessel, and two processes of corrugation setting and setting are realized at one time.

[0011] The front end of the corrugated core mold is installed on the hollow cylinder clamp, and the rear end is installed on the chuck, and when the corrugated core mold is assembled, the assembly shaft of the corrugated core mold is inserted into the hollow cylinder clamp until the positioning end face of the corrugated core mold cooperates with the end face of the hollow cylinder clamp to play a role of quick installation and positioning.

[0012] The hollow cylinder clamp and the chuck need to ensure concentricity when installed, and the inner holes of the corrugated outer mold one and the corrugated outer mold two are concentric with the hollow cylinder clamp and the chuck.

[0013] The preferred guide module one and the guide module two adopt high-precision guide modules to improve the installation and movement precision of the equipment and ensure that the corrugations of the corrugated outer mold one and the corrugated outer mold two are completely engaged with the corrugations of the corrugated core mold.

[0014] The preferred material of the core mold one, the core mold two and the core mold three is austenitic stainless steel, which can effectively prevent rust and meet the adsorption positioning of the magnet of the magnetic positioning rod.

[0015] The preferred corrugation of the core mold one, the core mold two, the core mold three, the corrugated outer mold one and the corrugated outer mold two is coated with polytetrafluoroethylene smooth coating to reduce the friction of the corrugation, so that the axial tension of the artificial blood vessel blank pipe can be reduced during the corrugation process.

[0016] The preferred diameter of the corrugated core mold is 8mm-32mm, and the inner diameter of the corrugated outer mold one and the corrugated outer mold two after buckling matches the diameter of the corrugated core mold.

[0017] The beneficial effects of the present application

[0018] The artificial blood vessel texturing and shaping device of the present application adopts the fixed mold pressing engagement method to texture, so that the external artificial blood vessel is consistent with the texture depth of the clamping mold, which can make the texture uniformity of the artificial blood vessel consistent, and improve the quality of the product.

[0019] During the texturing process, only one installation is needed, which can realize the two processes of texturing and heat setting, saving time and effort, and improving the efficiency.

[0020] The texturing core mold is a detachable structure, which can realize rapid demolding of the artificial blood vessel after texturing and shaping, simple operation, and improved efficiency.

[0021] The texturing core mold has multiple positioning surfaces during installation and texturing, which can ensure the accuracy of the device during production and reduce the production of defective products.

[0022] It is suitable for various artificial blood vessels of different diameters, improving the applicability and flexibility of the device.

[0023] The cost is relatively low, and batch production can be realized, which is conducive to promoting large-scale manufacturing and application of artificial blood vessels. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structural schematic diagram of the present application;

[0025] Figure 2 is a structural schematic diagram of the texturing core mold of the present application;

[0026] Figure 3 is a structural schematic diagram of the texturing outer mold of the present application;

[0027] Figure 4 is an angle diagram of the three sides of the core mold of the present application;

[0028] In the figure, 1. mounting plate, 2. positioning cylinder clamp mounting plate, 3. hollow cylinder clamp, 4. texturing outer mold one, 5. texturing outer mold two, 6. texturing core mold, 7. chuck, 8. chuck fixing plate, 9. guide module one, 10. opening clamp air cylinder, 11. guide module two, 61. magnetic positioning rod, 611. positioning step, 612 core mold installation shaft, 62. core mold one, 63. core mold two, 64. core mold three, 41. outer mold, 42. heating rod. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described examples are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0030] Embodiment 1

[0031] The hollow collet 3 is installed on the positioning collet mounting plate 2, the positioning collet mounting plate 2 is fixed on the mounting plate 1 by bolts, the collet chuck 7 is installed on the collet chuck fixing plate 8, the collet chuck fixing plate 8 is fixed on the mounting plate 1 by bolts, and the coaxiality of the hollow collet 3 and the collet chuck 7 is adjusted during installation; the 10 mm caliber texturing outer die one 4 and the 10 mm caliber texturing outer die two 5 are respectively installed on the two clamping jaws of the opening clamping cylinder 10, the opening clamping cylinder 10 is fixed on the mounting plate 1 by bolts, the two sides of the φ10 mm caliber texturing outer die one 4 and the φ10 mm caliber texturing outer die two 5 are provided with mounting holes and are respectively installed on the linear bearings of the guide die set one 9 and the guide die set two 11, the guide rail fixing seat of the guide die set one 9 and the guide die set two 11 is installed on the mounting plate 1 by bolts, the hole centers of the φ10 mm caliber texturing outer die one 4 and the φ10 mm caliber texturing outer die two 5 are adjusted to be coaxial with the coaxiality of the hollow collet 3 and the collet chuck 7, and the opening clamping cylinder 10 controls the φ10 mm caliber texturing outer die one 4 and the φ10 mm caliber texturing outer die two 5 to realize the opening and closing process of texturing during the opening and closing process.

[0032] First, install the φ10mm caliber core mold 6, core mold one 62, core mold two 63 and two edge with the angle of 20° of the core mold three 64 installed in the core mold installation shaft 612 of the magnetic positioning rod 61, and the end face of the core mold one 62, the core mold two 63 and the core mold three 64 is clamped in the positioning step 611 end face of the magnetic positioning rod 61, to ensure the consistency of the corrugated pattern of the core mold one 62, the core mold two 63 and the core mold three 64, the φ10mm artificial blood vessel blank pipe is sleeved on the φ10mm caliber core mold 6, the assembly shaft at the front end of the φ10mm caliber core mold 6 is inserted into the hollow collet 3, until the positioning end face of the φ10mm caliber core mold 6 is matched and positioned with the end face of the hollow collet 3, the assembly shaft at the rear end of the φ10mm caliber core mold 6 is installed and clamped on the chuck 7, the opening clamp cylinder 10 is started, the opening clamp cylinder 10 controls the φ10mm caliber core mold one 4 and the φ10mm caliber core mold two 5 to close, until the φ10mm caliber core mold one 4 and the φ10mm caliber core mold two 5 are completely buckled, the corrugated pattern of the φ10mm caliber core mold one 4 and the φ10mm caliber core mold two 5 is completely engaged with the corrugated pattern of the φ10mm caliber core mold 6, the φ10mm artificial blood vessel blank pipe is extruded out of the mold corrugated pattern, the heating rod 42 is started to make the outer mold 41 rise to the temperature required for the blank pipe shaping, the artificial blood vessel is shaped, after the shaping is completed, the opening clamp cylinder 10 is started to control the core mold one 4 and the core mold two 5 to open and demold, the chuck 7 is loosened, the hollow collet 3 is opened and slid, and the φ10mm caliber core mold 6 is taken down, the magnetic positioning rod 61 is pulled out, the core mold three 64 is slid to the center hole, and the core mold one 62, the core mold two 63 and the core mold three 64 are pulled out, the corrugated shaping of the φ10mm artificial blood vessel blank pipe is completed.

[0033] Example 2

[0034] The hollow collet 3 is installed on the positioning collet mounting plate 2 which is fixed on the mounting plate 1 by bolts, the collet chuck 7 is installed on the collet chuck fixing plate 8 which is fixed on the mounting plate 1 by bolts, the coaxiality of the hollow collet 3 and the collet chuck 7 is adjusted during installation; the φ30mm caliber texturing outer mold one 4 and the φ30mm caliber texturing outer mold two 5 are respectively installed on the two clamping jaws of the opening clamping cylinder 10 which is fixed on the mounting plate 1 by bolts, the two sides of the φ30mm caliber texturing outer mold one 4 and the φ30mm caliber texturing outer mold two 5 are provided with mounting holes and are respectively installed on the linear bearings of the guide mold set one 9 and the guide mold set two 11, the guide rail fixing seat of the guide mold set one 9 and the guide mold set two 11 is installed on the mounting plate 1 by bolts, the coaxiality of the hole centers of the φ30mm caliber texturing outer mold one 4 and the φ30mm caliber texturing outer mold two 5 and the coaxiality of the hollow collet 3 and the collet chuck 7 are adjusted, the opening clamping cylinder 10 controls the φ30mm caliber texturing outer mold one 4 and the φ30mm caliber texturing outer mold two 5 to realize the opening and closing process of texturing during the opening and closing process.

[0035] First, the φ30mm caliber texturing core mold 6 is installed, the core mold one 62, the core mold two 63 and the two edges of the core mold three 64 are respectively installed at the core mold installation shaft 612 of the magnetic positioning rod 61, and one end face of the core mold one 62, the core mold two 63 and the core mold three 64 is clamped on the end face of the positioning step 611 of the magnetic positioning rod 61, so as to ensure the consistency of the corrugated patterns of the core mold one 62, the core mold two 63 and the core mold three 64, the φ30mm artificial blood vessel blank pipe is sleeved on the φ30mm caliber texturing core mold 6, the assembly shaft at the front end of the φ30mm caliber texturing core mold 6 is inserted into the hollow collet 3 until the positioning end face of the φ30mm caliber texturing core mold 6 is matched and positioned with the end face of the hollow collet 3, the assembly shaft at the rear end of the φ30mm caliber texturing core mold 6 is installed on the collet chuck 7 and is rotated and clamped, the opening clamping cylinder 10 is started, the opening clamping cylinder 10 controls the φ30mm caliber texturing outer mold one 4 and the φ30mm caliber texturing outer mold two 5 to close until the φ30mm caliber texturing outer mold one 4 and the φ30mm caliber texturing outer mold two 5 are completely buckled, the corrugated patterns of the φ30mm caliber texturing outer mold one 4 and the φ30mm caliber texturing outer mold two 5 are completely meshed with the texturing patterns of the φ30mm caliber texturing core mold 6, the φ30mm artificial blood vessel blank pipe is extruded out of the mold corrugated patterns, the heating rod 42 is started to make the outer mold 41 rise to the temperature required for the blank pipe to be shaped, the artificial blood vessel is shaped, after the shaping is completed, the opening clamping cylinder 10 is started to control the φ30mm caliber texturing outer mold one 4 and the φ30mm caliber texturing outer mold two 5 to open and demold, the collet chuck 7 is rotated and loosened, the hollow collet 3 is slid and opened, and the φ30mm caliber texturing core mold 6 is taken down, the magnetic positioning rod 61 is pulled out, the core mold three 64 is slid to the center hole, and the core mold one 62, the core mold two 63 and the core mold three 64 are pulled out, and the texturing and shaping of the φ30mm artificial blood vessel blank pipe are completed.

Claims

1. A prosthesis texturing and shaping apparatus, characterized by, The utility model relates to a kind of moulding core moulding device, including: Mounting plate (1), positioning cylinder clamp mounting plate (2), hollow cylinder clamp (3), texturing outer die one (4), texturing outer die two (5), texturing core die (6), chuck (7), chuck fixed plate (8), guide module one (9), open clamp air cylinder (10), guide module two (11);Hollow cylinder clamp (3) is installed on positioning cylinder clamp mounting plate (2), positioning cylinder clamp mounting plate (2) is fixed on mounting plate (1) by bolt, chuck (7) is installed on chuck fixed plate (8), chuck fixed plate (8) is fixed on mounting plate (1) by bolt;Texturing core die (6) front end is installed on hollow cylinder clamp (3), rear end is installed on chuck (7);Texturing outer die one (4) and texturing outer die two (5) are respectively installed on the two clamping jaws of open clamp air cylinder (10), open clamp air cylinder (10) is fixed on mounting plate (1) by bolt, texturing outer die one (4) and texturing outer die two (5) both sides have mounting hole, respectively installed on the linear bearing of guide module one (9) and guide module two (11), the guide rail fixed seat of guide module one (9) and guide module two (11) is installed on mounting plate (1) by bolt;The inner hole of the hollow cylinder clamp (3) and chuck (7) concentric, texturing outer die one (4) and texturing outer die two (5) are concentric with the inner hole of the hollow cylinder clamp (3) and chuck (7), texturing outer die one (4) and texturing outer die two (5) are engaged with texturing core die (6) after being buckled;The texturing core die (6) includes magnetic force positioning rod (61), core die one (62), core die two (63), core die three (64), the magnetic force positioning rod (61) is magnetic bar processing, the core die installation shaft (612) outer diameter of the magnetic force positioning rod (61) is consistent with the inner diameter of core die one (62), core die two (63), core die three (64), and the core die installation shaft (612) one end has positioning step (611), and the other end's axle diameter is less than the core die installation shaft (612) axle diameter;The material of core die one (62), core die two (63), core die three (64) is ferromagnetic metal, and the inner diameter of core die one (62), core die two (63) and core die three (64) can be assembled into a complete shaft hole, core die one (62), core die two (63) and core die three (64) are installed on the core die installation shaft (612) of magnetic force positioning rod (61) respectively, and core die one (62), core die two (63) and core die three (64) are fixed by the magnetic force of magnetic force positioning rod (61), and in the installation process, one end of core die one (62), core die two (63) and core die three (64) is respectively close to the positioning step (611) of magnetic force positioning rod (61);The angle between the two side edges of core die three (64) of texturing core die (6) and symmetry axis is between 0 ° and 45 °, after extracting magnetic force positioning rod (61), core die three (64) is slid towards the center of the shaft, core die one (62), core die two (63) and core die three (64) can be extracted, and fast demoulding is realized; The corrugated outer mold one (4) and the corrugated outer mold two (5) are provided with corrugations on the inner side, and can form a complete circular corrugation after buckling, which matches the corrugation pattern of the corrugated core mold (6); the corrugated outer mold one (4) comprises an outer mold (41) and a heating rod (42), both ends of the outer mold (41) are provided with positioning steps, and the length dimensions of the core mold one (62), the core mold two (63) and the core mold three (64) are consistent, and the positioning steps at both ends of the outer mold fix the two ends of the core mold one (62), the core mold two (63) and the core mold three (64) during the buckling driven by the opening air cylinder (10); The diameter of the corrugated core mold (6) ranges from 8mm to 32mm, and the inner diameter of the corrugated outer mold one (4) and the corrugated outer mold two (5) after buckling matches the diameter of the corrugated core mold (6).

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