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Intramedullary nail

An intramedullary nail and nail rod technology, applied in the field of intramedullary nails, can solve problems such as unstable fixation, and achieve the effects of easy healing and strong adaptability

Active Publication Date: 2021-11-05
江苏艾为康医疗器械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

b class="d_n">[0006] The present invention provides an intramedullary nail, which solves the problem of unstable fixation by expansion sheet

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0046] The intramedullary nail nickel titanium alloy material having a memory function and made of superelastic nitinol when low temperature become soft and will harden when high temperatures, such as attachment Figure 10 The shape of the intramedullary nail of the toe portion may be two corners, three corners, the four corners, the pitch, the width of each can be changed, while it can be used as the fixing spring;

[0047] Meanwhile applicability, by providing different shapes for use in different parts of the body, wherein the shape of the corresponding part are conventional intramedullary nail, such as the toes, the femur, the clavicle, the arm and the like;

[0048] After the nickel-titanium alloy, superelastic since the tightening of the two fracture together, there is no gap, the easier the fracture to heal.

[0049] Compared with the related art, the present invention provides an intramedullary nail has the following advantages:

[0050] By using intramedullary nail made of...

no. 2 example

[0052] Please refer to figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 with Image 6 , Based on the first embodiment of the present disclosure provides embodiments of an intramedullary nail, a second embodiment of the present application proposed another nail. The second embodiment is only a preferred embodiment of the first embodiment, the second embodiment of the embodiment of the individual embodiment of the first embodiment will not be affected.

[0053]Specifically, different from the second embodiment of the intramedullary nail of the present application provides the advantage that the intramedullary nail, an intramedullary nail comprising a femoral shaft fractures, the intramedullary nail comprises a shank having a larger diameter and a fixing portion smaller diameter shank expandable portion 2, wherein the entire interior of the intramedullary nail strip defines a chamber 4, the chamber 4 through the strip portion 1 and the shank fixing shank expandable portion 2, which...

no. 3 example

[0060] Please refer to Figure 7 , Figure 8 with Figure 9 , Based on the first embodiment of the present disclosure provides an intramedullary nail, a third embodiment of the present disclosure provides another nail. The third embodiment of the second embodiment are merely the preferred embodiment, the third embodiment of the embodiment of the individual embodiment of the first embodiment will not be affected.

[0061] Specifically, different from the embodiment of the intramedullary nail providing a third embodiment of the present application is characterized in that the end portion of the intramedullary nail, the shank portion 1 through a fixing assembly 12 is connected with a keyhole lock-up mechanism 11;

[0062] The lock-up mechanism 11 includes a connecting shaft 111, the shaft 111 is connected to the upper side defines a second annular groove 116, the connection surface of the shaft 111 and located inside the second annular groove 116 is provided with an annular jacket sleev...

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Abstract

The invention provides an intramedullary nail. The intramedullary nail is made of a nickel-titanium alloy material with a memory function and superelasticity, the intramedullary nail is made into an intramedullary nail with a current corresponding shape according to a use part, the intramedullary nail comprises an intramedullary nail for femoral shaft fracture, the intramedullary nail comprises a nail rod fixing part and a nail rod expandable part, the nail rod expandable part is connected to one end of the nail rod fixing part, strip-shaped cavities are formed in the nail rod expandable part and the nail rod fixing part, and the strip-shaped cavities located in the nail rod fixing part and the nail rod expandable part are connected. According to the intramedullary nail provided by the invention, the intramedullary nail made of the nickel-titanium alloy has a memory function, superelasticity and strong adaptability, can be correspondingly arranged as an intramedullary nail for corresponding body parts, can be fixed by utilizing the elasticity of the intramedullary nail, and can be used for eliminating a gap by aligning two fracture parts together due to the contracted superelasticity, and the fracture parts are healed more easily.

Description

Technical field [0001] The present invention relates to an intramedullary nail, and in particular, to a nail. Background technique [0002] Intramedullary nail in the case of medical devices orthopedic fixation devices. Nail structure having a shaft with a proximal end locking screw holes is provided with a nail under reduced pressure to a plane surface of the rod, it is provided with an elongated strip above the surface of the shank of the intramedullary nail in the proximal lever Save pressure plane, the plane can be reduced up to the distal end of the intramedullary nail shank rod proximal end, a locking screw is provided with holes at the proximal end of the intramedullary nail shank, the positioning groove connecting sleeve. [0003] Currently intramedullary nail intramedullary nails generally fixed by the screw in the bone, troublesome disassembly; [0004] To solve the problem of disassembly, conventional intramedullary nail Publication No. CN110301969A by expanded sheet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/72
CPCA61B17/7258A61B17/7266
Inventor 蒋惠江聂丰
Owner 江苏艾为康医疗器械科技有限公司
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