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Bone puncture needle launching device

A technology for launching devices and puncture needles, which is applied in the direction of puncture needles and trocars, and can solve problems such as high cost, inconvenient operation, and misfiring

Active Publication Date: 2021-08-31
卫飞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing bone puncture needle launching device may cause false firing after the puncture needle is loaded, which poses a safety risk. Although there are also special safety devices for the firing device to prevent the false firing of the puncture needle, the structure is complicated, it is not easy to operate, and the cost is high

Method used

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  • Bone puncture needle launching device
  • Bone puncture needle launching device
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Examples

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Embodiment Construction

[0028] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.

[0029] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which the present invention belongs.

[0030] Such as Figure 1-Figure 7 As shown, the embodiment of the present invention provides a bone puncture needle firing device, which includes an outer sleeve 100 , a firing shaft 200 and an operating shaft 300 .

[0031] An annular clamping platform 110 is provided on the inner peripheral surface of the outer sleeve 100 .

[0032] The launching shaft 200 is adapted in the outer...

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Abstract

The invention discloses a bone puncture needle launching device, and the bone puncture needle launching device comprises an outer sleeve, a launching shaft and an operating shaft; an annular clamping table is arranged on the inner circumferential surface of the outer sleeve; the launching shaft is arranged in the outer sleeve in a matched mode, a force storage spring for storing force for launching of the launching shaft is arranged in the outer sleeve, the lower end of the launching shaft is provided with a connecting part connected to the head of the puncture needle, and the upper end of the launching shaft is provided with an elastic clamping jaw clamped to the annular clamping table; the operating shaft is arranged above the launching shaft, a pressing part is arranged at the lower end of the operating shaft, and the pressing part extrudes the elastic clamping jaw towards the inner side when the operating shaft is pressed; and a sub-rod is arranged at the lower end of the operating shaft, convex columns are arranged on the two sides of the lower end of the sub-rod, a connecting hole is formed in the center of the upper end of the launching shaft, guide grooves are formed in the inner wall of the connecting hole, the sub-rod penetrates into the connecting hole, each convex column is adapted to each guide groove one by one, and an annular groove is formed in the inner wall of the connecting hole. According to the invention, the situation that the puncture needle is mistakenly launched after being loaded can be avoided, and the device is simple in structure, convenient in operation and good for cost reduction.

Description

technical field [0001] The invention relates to the technical field of bone puncture medical supplies, in particular to a bone puncture needle launching device. Background technique [0002] Bone puncture needles are used to infuse fluid into the bone marrow cavity, which can quickly exert the drug effect and save the lives of patients. Due to the high hardness of bones, it is difficult for medical staff to puncture the puncture needle into the target position with bare hands, so they often need to use a launcher. The existing bone puncture needle launching device may cause false firing after the puncture needle is loaded, which poses a safety risk. Although there are also special safety devices for the firing device to prevent the false firing of the puncture needle, the structure is complicated, it is not easy to operate, and the cost is high. Contents of the invention [0003] Aiming at the defects in the prior art, the present invention provides a bone puncture needle ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34
CPCA61B17/3472
Inventor 卫飞
Owner 卫飞
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