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Manufacturing tool for calcium phosphate bone cement round rod and manufacturing method for bone cement round rod manufacturing

A technique for making calcium phosphate bone cement and tools, which is applied in the field of medical devices, and can solve problems such as overflow, bone cement collapsing in case of blood, and false filling

Pending Publication Date: 2021-05-18
苏彬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, the present invention provides a calcium phosphate bone cement round rod manufacturing tool and a method for making a bone cement round rod to solve the problem of bone cement collapsing when encountering blood and spontaneously smearing calcium phosphate bone cement caused by syringe injection or freehand smearing in the prior art. Spill hole inlet or outlet overflow, false filling, etc.

Method used

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  • Manufacturing tool for calcium phosphate bone cement round rod and manufacturing method for bone cement round rod manufacturing

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Experimental program
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Effect test

Embodiment 1

[0023] The present embodiment provides a calcium phosphate bone cement round rod manufacturing tool, such as figure 1 As shown, the calcium phosphate bone cement round rod manufacturing tool includes a bone cement syringe 1 and a forming nozzle 2; the bone cement syringe 1 includes a bone cement injection cylinder 3, a syringe head 4, a sliding plug 5, a push rod 6 and a handle 7. The front end of the bone cement injection cylinder 3 is provided with an opening for injecting calcium phosphate bone cement, the syringe head 4 is detachably connected to the front opening of the bone cement injection cylinder 3, and the push rod 6 is connected to the Between the sliding plug 5 and the handle 7, the sliding plug 5 can slide back and forth and fit on the inner wall of the bone cement injection cylinder 3; the forming nozzle 2 is detachably connected to the syringe head 4, The forming nozzle 2, the injector head 4 and the bone cement injection cylinder 3 are in communication.

[002...

Embodiment 2

[0026] Calcium phosphate bone cement round rod making tool as described in embodiment 1, such as figure 1 As shown, the syringe head 4 includes a syringe head front 8 and a syringe head rear 11, the syringe head front 8 is in the shape of a cylinder with both ends open, and the syringe head rear 11 is in the shape of a circular truncated cone with both ends open , the front part 8 of the syringe head is connected to the smaller end of the rear part 11 of the syringe head.

[0027] In the calcium phosphate bone cement round rod manufacturing tool of this embodiment, the calcium phosphate bone cement in the bone cement injection cylinder 3 flows out through the rear part 11 of the syringe head, the front part 8 of the syringe head and the forming nozzle 2 in sequence to form the calcium phosphate bone cement The back part 11 of the syringe head is in the shape of a truncated cone with openings at both ends, and the diameter decreases successively from back to front, so that the ...

Embodiment 3

[0029] Calcium phosphate bone cement round rod making tool as described in embodiment 2, such as figure 1 As shown, the rear part 11 of the syringe head is provided with an internal thread, and the front end of the bone cement injection cylinder 3 is provided with an external thread, and the rear part 11 of the syringe head is threadedly connected with the front end of the bone cement injection cylinder 3 . In this way, the rear part 11 of the syringe head and the front end of the bone cement injection cylinder 3 are not only conveniently connected and easy to operate, but also can be sealed and connected, so that the calcium phosphate bone cement in the bone cement injection cylinder 3 can be completely formed. The nozzle 2 sprays out to form a calcium phosphate bone cement round rod, which has better utility.

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Abstract

The invention discloses a manufacturing tool for a calcium phosphate bone cement round rod and a manufacturing method for a bone cement round rod. The manufacturing tool for a calcium phosphate bone cement round rod comprises a bone cement injector and a forming spray head, wherein the bone cement injector comprises a bone cement injection cylinder, an injector head, a sliding plug, a push rod and a handle, an opening used for injecting calcium phosphate bone cement is formed in the front end of the bone cement injection cylinder, the injector head is detachably connected to the opening in the front end of the bone cement injection cylinder, and the push rod is connected between the sliding plug and the handle. The manufacturing tool for the calcium phosphate bone cement round rod is provided with the bone cement injector and the forming spray head, wherein the calcium phosphate bone cement injected into the bone cement injector can form the calcium phosphate bone cement round rod after being sprayed out through the forming spray head, the calcium phosphate bone cement round rod can be conveniently and effectively implanted into a screw hole after being solidified, and the manufacturing tool for the calcium phosphate bone cement round rod is ingenious in structural design and high in practicability, has good stability and durability and is used for manufacturing the bone cement round rod on an operating table on site.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a calcium phosphate bone cement round rod manufacturing tool and a method for manufacturing the bone cement round rod. Background technique [0002] Fracture internal fixation device removal is a common operation in orthopedic surgery. Implanting absorbable calcium phosphate bone cement in the screw hole left after screw removal can accelerate the induction of osteogenesis, which can significantly accelerate the speed of bone recovery to normal strength. At present, there are no special instruments and products for nail hole bone grafting. Usually, a syringe is used to inject or wipe in by hand. These methods have defects such as bone cement collapsing when it encounters blood, overflowing from the entrance or exit of the nail hole, and improper filling. How to design a tool to conveniently make absorbable calcium phosphate bone cement round rods matching the diameter of...

Claims

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Application Information

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IPC IPC(8): A61B17/88
CPCA61B17/8805A61B17/8833
Inventor 苏彬田啟俊滕栋张国英
Owner 苏彬
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