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Bone cement stirring injector

A technology of syringe and bone cement, applied in the field of medical devices, can solve the problems of time-consuming and labor-intensive, the risk of contamination of bone cement, affecting the operation effect, etc., so as to shorten the operation time, reduce the risk of contamination, and facilitate the operation. Effect

Active Publication Date: 2015-11-18
GUANGZHOU ARNOLD MEDICAL DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This has great disadvantages. Due to the viscosity characteristics of the bone cement itself, the process of infusing the bone cement from the mixer into the syringe is time-consuming and labor-intensive, and the risk of bone cement contamination increases.
In addition, the bone cement will solidify after a certain period of time after mixing, which often causes the doctor to solidify before the bone cement is completely injected into the body, affecting the surgical effect

Method used

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  • Bone cement stirring injector
  • Bone cement stirring injector
  • Bone cement stirring injector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The bone cement injector includes a premix cylinder, an injection head, a stirring device, and an injection device.

[0041] Such as figure 1 , 2As shown, the premixing cylinder 100 is provided with a premixing chamber 110, the first end of the premixing cylinder 100 is provided with a first opening 120 communicating with the premixing chamber 110, and the second end of the premixing cylinder is provided with a first opening 120 communicating with the premixing chamber 110. Connected limit holes. The injection device includes an injection cover 300 , an injection rod 410 , and an injection cylinder 425 . The injection tube 425 is provided with an injection channel 423 , the first end of the injection tube 425 is provided with an injection plate 420 , and the injection plate 420 is provided with an injection hole 424 which communicates with the injection channel 423 . The first end of the injection rod 410 is provided with an injection head 411 , the second end of the...

Embodiment 2

[0049] The difference between embodiment two and embodiment one is:

[0050] Such as Figure 10 , 11 As shown, the stirring shaft 520 is provided with a gear 522 , and the stirring cover 530 is also provided with a rack 550 and two rack holes. The rack 550 passes through the two rack holes in turn, and the rack 550 meshes with the gear 522 . When stirring the bone cement, move the rack 550 back and forth in the rack hole, so that the rack 550 drives the gear 522 to rotate, thereby driving the stirring head 510 to rotate for stirring.

Embodiment 3

[0052] The difference between embodiment three and embodiment one is:

[0053] refer to Figures 1 to 9 , there is no limit hole in the premixing cylinder, the second opening communicated with the premixing chamber is provided on the premixing cylinder, the second opening is opposite to the first opening, the injection cap 210 is set at the first opening 122, the second The two openings are compatible with the stirring cap 530 and the injection cap 300, the stirring cap 530 can be set on the second opening, and the injection cap 300 can also be set on the second opening. When in use, first cover the injection cap 210 on the first opening, and set the stirring cap 530 on the second opening. At this time, the stirring head 510 is inserted into the premixing cavity 110, and the bone cement is stirred by using the stirring head 510. After stirring, remove the stirring cover 530, and set the injection cover 300 on the second opening. At this time, the injection plate and the injec...

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PUM

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Abstract

The invention relates to a bone cement stirring injector. The bone cement stirring injector comprises a premixing barrel, a push injection device, an injection head and a stirring device. A premixing cavity is formed in the premixing barrel. A first opening communicated with the premixing cavity is formed in the first end of the premixing barrel, and a second opening communicated with the premixing cavity is formed in the second end of the premixing barrel. The push injection device comprises a push injection rod. The first end of the push injection rod is arranged in the premixing barrel and extends into the premixing cavity through the second opening. The injection head comprises an injection cover and an injection nozzle which are connected. An injection hole is formed in the injection nozzle, and an injection through hole communicated with the injection hole is formed in the injection cover. The stirring device comprises a stirring cover, a stirring shaft and a stirring head. The stirring shaft is installed on the stirring cover in a rotary mode, and the stirring head is connected to one end of the stirring shaft. When the stirring cover is installed at the first opening of the premixing barrel, the stirring head extends into the premixing cavity through the first opening; when the injection cover is installed at the first opening of the premixing barrel, the injection hole is communicated with the premixing cavity. Use is convenient, and the operation linkage is good.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to a bone cement stirring syringe. Background technique [0002] In vertebroplasty, it is necessary to infuse bone cement into the vertebral body, and the medical technology of filling bone seams and gaps through bone cement flow can play a role in stabilizing the vertebral body. The existing method is to first pour the bone cement powder into a mixer similar to a bowl, add water (or other liquid) and stir to form the bone cement, after mixing the bone cement, pour the bone cement from the mixer into the syringe, use the syringe Bone cement is injected into the body. This has great disadvantages. Due to the viscosity characteristics of the bone cement itself, the process of infusing the bone cement from the mixer into the syringe is time-consuming and labor-intensive, and the risk of bone cement contamination increases. In addition, the bone cement will solidify after a certain peri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/88B01F13/00
CPCA61B17/00234A61B17/8802A61B17/8805A61B2017/564B01F33/50112B01F33/836B01F2101/20
Inventor 赵汝琛
Owner GUANGZHOU ARNOLD MEDICAL DEVICE CO LTD
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