CN210880632U

CN210880632U - Tibia intramedullary nail mould

Info

Publication number: CN210880632U
Application number: CN201921550323.2U
Authority: CN
Inventors: 连华; 徐宏生
Original assignee: Suzhou Jikuang Intelligent Technology Co ltd
Current assignee: Suzhou Jikuang Intelligent Technology Co ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-06-30
Anticipated expiration: 2029-09-16

Abstract

The utility model discloses a shin bone intramedullary nail mould, which comprises a fixed plate and an upper module, wherein the fixed plate is arranged on the outer wall of the upper end of the upper module, the inner part of the outer wall of the upper end of the fixed plate is provided with a mounting hole, the outer wall of the lower end of the upper module is provided with a lower module, the outer wall of the lower end of the lower module is provided with a bottom plate, the inner part of the outer wall of the front end of the upper module is provided with a fixed block, the outer wall of the upper end of the fixed block is provided with a clamping device, a fixed pipe on the clamping device can be fixed at the front end of the fixed block, the fixed pipe can be rapidly arranged in a screw hole on the fixed block through an external thread on the fixed pipe and can be arranged or disassembled at any time, the inner part of the fixed pipe is provided with a movable pipe, the movable, the intramedullary nail block is convenient to take away, and the external loss of the intramedullary nail block is reduced.

Description

Tibia intramedullary nail mould

Technical Field

The utility model belongs to the technical field of medical instrument is relevant, concretely relates to shin bone intramedullary nail mould.

Background

An intramedullary nail belongs to an orthopedic internal fixation instrument in medical instruments, and has a structure of an intramedullary nail rod, a near end locking screw hole is arranged at the near end of the intramedullary nail rod, the surface of the intramedullary nail rod is provided with a decompression plane, the surface of the intramedullary nail rod is provided with more than one strip-shaped decompression plane, the decompression plane can extend from the proximal end of the intramedullary nail rod to the distal end of the intramedullary nail rod, the proximal end of the intramedullary nail rod is provided with a locking screw rod positioning screw hole, a connecting sleeve positioning groove and a mould, and various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production, in short, the mould is a tool for manufacturing molded articles, the tool is composed of various parts, different moulds are composed of different parts, and the tool is mainly used for processing the appearance of an article through the change of the physical state of a formed material and is called as an industrial mother.

The existing intramedullary nail mold technology has the following problems: the length of the existing intramedullary nail is longer in the process of using an intramedullary nail mold, the existing intramedullary nail is easy to clamp on a module, and the problem that the intramedullary nail cannot be used due to the loss of the intramedullary nail is easily caused in the production process of the intramedullary nail.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a shin bone intramedullary nail mould to solve the easy card problem in the module of interior nail mould in-process intramedullary nail that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a tibia intramedullary nail mould comprises a fixing plate and an upper module, wherein the fixing plate is arranged on the outer wall of the upper end of the upper module, a mounting hole is formed in the outer wall of the upper end of the fixing plate, a lower module is arranged on the outer wall of the lower end of the upper module, a bottom plate is arranged on the outer wall of the lower end of the lower module, a fixing block is arranged in the outer wall of the front end of the upper module, a fixing groove is formed in the outer wall of the upper end of the fixing block, a clamping device is arranged on the outer wall of the front end of the fixing block, an upper positioning hole is formed in the outer wall of the left end of the lower side of the upper module, a lower positioning hole is formed in the lower module right below the upper positioning hole, a screw hole is formed in the outer wall of the front end of the fixing block, an intramedullary nail, the movable pipe is characterized in that a rear check ring is arranged on the outer circumferential wall of the rear side of the movable pipe, a front check ring is arranged on the inner circumferential wall of the front side of the fixed pipe, a fixing device is arranged on the outer circumferential wall of the front side of the movable pipe, a fixing hole is formed in the fixing device, the fixing hole is formed in the inner circumferential wall of the movable pipe, a through hole is formed in the inner wall of the lower end of the fixing hole, a fixing ring is arranged on the right lower side of the through hole, a pressing handle is arranged on the right upper side of the fixing hole, the fixing hole and the pressing handle are fixedly connected through a spring, a fixing column is arranged on the outer wall of the lower end of the pressing handle, and the lowest end of the.

Preferably, the length of the fixing plate is the same as that of the upper module, and the width of the fixing plate is greater than that of the upper module.

Preferably, the cross-sectional area of the upper module is the same as that of the lower module, and the diameters of the upper positioning hole and the lower positioning hole are the same.

Preferably, the width of the fixing groove is larger than the diameter of the intramedullary nail block, and the diameter of the screw hole is larger than the width of the fixing groove.

Preferably, the diameter of the fixed tube is larger than the diameter of the moving tube, and the diameter of the moving tube is larger than the diameter of the intramedullary nail block.

Preferably, the diameter of the fixing hole is larger than that of the through hole, and the diameter of the fixing ring is larger than that of the intramedullary nail block.

Compared with the prior intramedullary nail mold technology, the utility model provides a shin bone intramedullary nail mold possesses following beneficial effect:

the utility model discloses a shin bone intramedullary nail mould is through having installed a clamp and getting the device at the front end of last module, so make after accomplishing the intramedullary nail piece and accomplish the injection moulding, form the finished product, conveniently take off this product fast from the module, the intramedullary nail piece is because length is longer, and easily glue on the module, take the intramedullary nail piece fast with the clamp and get the device like this, prevented that the intramedullary nail piece from causing certain damage to it in the course of taking off, there is fixed pipe on the clamp and get the device, fixed pipe can fix the front end at the fixed block, through the external screw thread on the fixed pipe, so can install it in the screw on the fixed block fast, can install or dismantle at any time, there is the removal pipe in the fixed pipe, and there is fixing device on the removal pipe, can fix the intramedullary nail piece through this fixing device, so make the removal pipe drive the intramedullary nail piece and outwards move together, the intramedullary nail block is convenient to take away, the external loss of the intramedullary nail block is reduced, and the yield is increased;

when the tibial intramedullary nail mold is used for injection molding, the upper mold block is arranged on the fixed plate, the lower mold block is arranged on the bottom plate, the fixed plate and the bottom plate are respectively arranged on an injection molding machine, the clamping device can be arranged on the outer wall of the front end of the fixed block, then the rear end of the fixed pipe is aligned to the screw hole, then the fixed pipe is rotated to ensure that the external thread on the fixed pipe is completely inserted into the screw hole, then the injection molding machine is switched on an external power supply to start the injection molding machine, the injection molding is to utilize the thermophysical property of plastics to add materials into the charging barrel from the hopper, the outside of the charging barrel is heated by the heating ring to melt the materials, when the screw rotates, the melted materials are pushed to the head of the screw under the action of the falling groove friction force and the shearing force, then the screw injects the melted materials in the storage chamber into a cavity of the mold at high speed and high pressure under the, melt in the die cavity is subjected to pressure maintaining, cooling and solidification shaping, the die is opened under the action of a die closing mechanism, a shaped product is ejected out of the die through an ejection device, the intramedullary nail block is produced like this, one end of the intramedullary nail block appears in a movable tube, the pressing handle is held by a hand, the two pressing handles are pressed in a small mode, a fixing ring at the lower end of the pressing handle is fixed, the movable tube and the intramedullary nail block are pulled outwards together, and the intramedullary nail block can be taken out quickly.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic view of a three-dimensional structure of a tibial intramedullary nail mold provided by the present invention;

FIG. 2 is a schematic view of the three-dimensional structure of the intramedullary nail mold of the present invention;

fig. 3 is a schematic plan view of the clamping device of the present invention;

fig. 4 is a schematic plan view of the fixing device of the present invention;

in the figure: 1. a fixing plate; 2. mounting holes; 3. an upper module; 4. a lower module; 5. a base plate; 6. a fixed block; 7. fixing grooves; 8. a gripping device; 9. an upper positioning hole; 10. a lower positioning hole; 11. an intramedullary nail block; 12. a screw hole; 13. an external thread; 14. a fixed tube; 15. a rear retainer ring; 16. moving the tube; 17. a front retainer ring; 18. a fixing device; 19. pressing the handle; 20. a spring; 21. fixing a column; 22. a through hole; 23. a stationary ring; 24. and (7) fixing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a tibia intramedullary nail mould comprises a fixing plate 1 and an upper module 3, wherein the fixing plate 1 is arranged on the outer wall of the upper end of the upper module 3, a mounting hole 2 is arranged inside the outer wall of the upper end of the fixing plate 1, a lower module 4 is arranged on the outer wall of the lower end of the upper module 3, a bottom plate 5 is arranged on the outer wall of the lower end of the lower module 4, a fixing block 6 is arranged inside the outer wall of the front end of the upper module 3, a fixing groove 7 is arranged on the outer wall of the upper end of the fixing block 6, a clamping device 8 is arranged on the outer wall of the front end of the fixing block 6, an upper positioning hole 9 is arranged inside the outer wall of the left end of the lower side of the upper module 3, a lower positioning hole 10 is arranged on the lower module 4 right below the upper positioning hole 9, a screw hole 12 is arranged on the, the inside removal pipe 16 that has cup jointed of fixed tube 14 circumference, be provided with back retaining ring 15 on the circumference outer wall of removal pipe 16 rear side, be provided with preceding retaining ring 17 on the circumference inner wall of fixed tube 14 front side, it is provided with fixing device 18 to remove to be provided with fixing device 18 on the circumference outer wall of pipe 16 near the front side, be provided with fixed orifices 24 on the fixing device 18, fixed orifices 24 set up inside the circumference outer wall that removes pipe 16, the inside through-hole 22 that is provided with of fixed orifices 24 lower extreme inner wall, be provided with retainer plate 23 under the through-hole 22, the upside is provided with pressing handle 19 under the fixed orifices 24, fixed orifices 24 and pressing handle 19 pass through spring 20 fixed connection, be provided with fixed column 21 on the outer wall of pressing handle 19 lower extreme, fixed column 21 passes fixed orifices 24 and through-hole 22 and sets up on.

A tibia intramedullary nail mould comprises a fixing plate 1 and an upper module 3, wherein the length of the fixing plate 1 is the same as that of the upper module 3, the width of the fixing plate 1 is larger than that of the upper module 3, so that the upper module 3 can be installed on the fixing plate 1, the upper module 3 and the lower module 4 are matched under the action of the fixing plate 1, the sectional area of the upper module 3 is the same as that of the lower module 4, the diameters of an upper positioning hole 9 and a lower positioning hole 10 are the same, the upper module 3 and the lower module 4 are matched under the action of the fixing plate 1 and a bottom plate 5, then the intramedullary nail block 11 is produced by injection molding, the width of a fixing groove 7 is larger than that of the intramedullary nail block 11, the diameter of a screw hole 12 is larger than that of the fixing groove 7, so that the intramedullary nail block 11 can pass through the fixing groove 7, the fixing groove 7 fixes the intramedullary nail block 11, it is the diameter of the moving tube 16 that is larger than the diameter of the intramedullary nail piece 11 so that the moving tube 16 can be fitted over the outside of the intramedullary nail piece 11 and the moving tube 16 is fitted over the inside of the fixing tube 14, the diameter of the fixing hole 24 is larger than the diameter of the through hole 22, and the diameter of the fixing ring 23 is larger than the diameter of the intramedullary nail piece 11 so that one end of the spring 20 is mounted on the inner wall of the fixing hole 24 and the fixing ring 23 can press against the intramedullary nail piece 11.

The utility model discloses a theory of operation and use flow: after the utility model is installed, the tibia intramedullary nail mould is provided with a clamping device 8 at the front end of the upper module 3, so that a finished product is formed after the injection molding of the intramedullary nail block 11 is completed, the product can be conveniently and quickly taken off from the module, the intramedullary nail block 11 is longer in length and is easy to be stuck on the module, the intramedullary nail block 11 can be quickly taken by the clamping device 8, the intramedullary nail block 11 is prevented from being damaged in the taking-off process, the clamping device 8 is provided with a fixed tube 14, the fixed tube 14 can be fixed at the front end of the fixed block 6, the intramedullary nail block 11 can be quickly installed in a screw hole 12 on the fixed block 6 through an external thread 13 on the fixed tube 14 and can be installed or detached at any time, a movable tube 16 is arranged inside the fixed tube 14, a fixing device 18 is arranged on the movable tube 16, the intramedullary nail block 11 can be fixed through the fixing device 18, thus, the movable tube 16 drives the intramedullary nail block 11 to move outwards together, the intramedullary nail block 11 is convenient to take away, the loss of the intramedullary nail block 11 to the outside is reduced, the yield is increased, when the tibia intramedullary nail mould is used for injection moulding, the upper module 3 is arranged on the fixed plate 1, the lower module 4 is arranged on the bottom plate 5, the fixed plate 1 and the bottom plate 5 are respectively arranged on an injection moulding machine, at the moment, the clamping device 8 can be arranged on the outer wall of the front end of the fixed block 6, then the rear end of the fixed tube 14 is aligned with the screw hole 12, then the fixed tube 14 is rotated, the external thread 13 on the fixed tube 14 is completely inserted into the screw hole 12, then the injection moulding machine is switched on an external power supply, the injection moulding machine is started, the injection moulding utilizes the thermal and physical properties of plastics, the materials are added into the charging barrel from the hopper, the outside of the charging barrel is, the melted material is pushed to the head of a screw rod under the action of the friction force and the shearing force of a drop groove, then the screw rod injects the melted material in a storage chamber into a cavity of a mold through a nozzle under the action of reasoning of an injection oil cylinder piston at high speed and high pressure, after pressure maintaining, cooling and solidification shaping are carried out on the melted material in the cavity, the mold is opened under the action of a mold clamping mechanism, a shaped product is ejected out of the mold and dropped through an ejection device, the intramedullary nail block 11 is produced, then one end of the intramedullary nail block 11 appears in a moving pipe 16, the two pressing handles 19 are pressed by hands to enable a fixing ring 23 at the lower end of the pressing handle 19 to be fixed, then the moving pipe 16 and the intramedullary nail block 11 are pulled outwards together, and the intramedullary nail block 11 can be rapidly held.

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. Shin bone intramedullary nail mould, including fixed plate (1) and last module (3), its characterized in that: the fixing plate (1) is arranged on the outer wall of the upper end of the upper module (3), a mounting hole (2) is formed in the outer wall of the upper end of the fixing plate (1), a lower module (4) is arranged on the outer wall of the lower end of the upper module (3), a bottom plate (5) is arranged on the outer wall of the lower end of the lower module (4), a fixing block (6) is arranged in the outer wall of the front end of the upper module (3), a fixing groove (7) is formed in the outer wall of the upper end of the fixing block (6), a clamping device (8) is arranged on the outer wall of the front end of the fixing block (6), an upper positioning hole (9) is formed in the outer wall of the left end of the lower side of the upper module (3), a lower positioning hole (10) is formed in the lower module (4) under the upper positioning hole (9), a screw hole (12) is formed, the clamping device (8) is provided with a fixed pipe (14), the outer circumferential wall of the rear side of the fixed pipe (14) is provided with external threads (13), the inner circumferential wall of the fixed pipe (14) is sleeved with a movable pipe (16), the outer circumferential wall of the rear side of the movable pipe (16) is provided with a rear check ring (15), the inner circumferential wall of the front side of the fixed pipe (14) is provided with a front check ring (17), the outer circumferential wall of the movable pipe (16) close to the front side is provided with a fixing device (18), the fixing device (18) is provided with a fixing hole (24), the fixing hole (24) is arranged inside the outer circumferential wall of the movable pipe (16), the inner wall of the lower end of the fixing hole (24) is internally provided with a through hole (22), the lower side of the through hole (22) is provided with a fixing ring (23), the upper side of the fixing hole (24) is provided with a pressing handle (19), and the fixing hole (24) and the pressing handle (19), a fixing column (21) is arranged on the outer wall of the lower end of the pressing handle (19), and the lowest end of the fixing column (21) penetrates through a fixing hole (24) and a through hole (22) and is arranged on the circumferential outer wall of the upper end of the fixing ring (23).

2. The tibial intramedullary nail mold of claim 1, wherein: the length of the fixing plate (1) is the same as that of the upper module (3), and the width of the fixing plate (1) is larger than that of the upper module (3).

3. The tibial intramedullary nail mold of claim 1, wherein: the cross-sectional area of the upper module (3) is the same as that of the lower module (4), and the diameters of the upper positioning hole (9) and the lower positioning hole (10) are the same.

4. The tibial intramedullary nail mold of claim 1, wherein: the width of the fixing groove (7) is larger than the diameter of the intramedullary nail block (11), and the diameter of the screw hole (12) is larger than the width of the fixing groove (7).

5. The tibial intramedullary nail mold of claim 1, wherein: the diameter of the fixed tube (14) is larger than that of the moving tube (16), and the diameter of the moving tube (16) is larger than that of the intramedullary nail block (11).

6. The tibial intramedullary nail mold of claim 1, wherein: the diameter of the fixing hole (24) is larger than that of the through hole (22), and the diameter of the fixing ring (23) is larger than that of the intramedullary nail block (11).