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Puncturing instrument

A device and puncture needle technology, applied in the field of medical puncture devices, can solve problems such as retrograde infection, drainage failure, and drainage tube cutting, and achieve the effect of reducing injury and pain, less headache and low back pain, and less possibility

Active Publication Date: 2014-07-30
江苏省华星医疗器械实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

2. After the indwelling drainage system restricts the patient's activities, it is not conducive to treatment, because patients with severe craniocerebral disease need to turn over frequently, pat their backs or carry for inspection
3. The drainage tube may be accidentally pulled out, resulting in drainage failure
4. Improper maintenance of the drainage system may cause retrograde infection
5. Due to the continuous opening of the subarachnoid space of the lumbar spinal cord, when the patient has a sudden attack of intracranial hypertension, it may cause brain herniation
6. If the operation of puncture and tube placement is improper, the drainage tube may be cut off by the puncture needle, and the broken end will remain in the body
7. Expensive

Method used

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Examples

Experimental program
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Effect test

Embodiment 1）

[0032] See Figure 1 to Figure 4 The puncture device of this embodiment includes a puncture needle 1 for puncturing the human body and forming a puncture channel in the body, a puncture needle core 2 for puncturing the human body when punctured in the puncture needle 1, and is suitable for The needle tube of the puncture needle 1 is sent into the human body and is left in the puncture channel after the puncture needle 1 is pulled out. The part of the guide wire 3 exposed to the body surface is covered and fixed with a sterile dressing 4 .

[0033] The puncture needle 1 is a No. 9 lumbar puncture needle commonly used in clinical practice (the outer diameter of the needle tube is 0.9mm), and the tip of the front part of the needle tube of the puncture needle 1 is in a spoon-shaped bevel. The tip of the needle core front portion of the puncture needle core 2 is a spoon-shaped slope. The guide wire 3 is a slightly curved medical guide wire at the front end (conforming to the ind...

Embodiment 2）

[0038] See Figure 1 to Figure 5 , the rest of the puncture device of this embodiment is the same as that of Embodiment 1, the difference is that the puncture needle 1 is a No. 7 lumbar puncture needle commonly used in clinical practice (the outer diameter of the needle tube is 0.7mm, mainly used or pediatric patients). The puncture device also includes a spacer 5 arranged between the exposed part of the guide wire 3 and the body surface of the human body after the puncture needle 1 is pulled out of the human body. The spacer 5 is a medical cotton pad, and the spacer 5 is provided with a notch 51 , and when in use, the bottom of the part of the guide wire 3 exposed outside the body is clamped and fixed in the notch 51 .

[0039] See Figure 6 and Figure 7 , when using the puncture instrument of this embodiment for lumbar puncture, the rest of the steps are the same as in Example 1, the difference is that step ④ is to keep the guide wire 3 still, pull out the puncture needl...

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Abstract

The invention relates to a puncturing instrument, which comprises a puncturing needle and a guide wire, wherein the puncturing needle is used for puncturing the human body and forming a puncturing channel in the human body; the guide wire is suitable to be sent into the human body along the needle tubing of the puncturing needle and is left in the puncturing channel to serve as a puncturing guide piece for the next time after the puncturing needle is pulled out. The use method for the puncturing instrument comprises the following steps: putting the core of the puncturing needle into the puncturing needle to form into a whole; puncturing a patient; after the puncturing needle reaches a proper position, pulling out the core of the puncturing needle for drainage; after the drainage is finished, sending the front part of the guide wire into the human body along the tail end of the needle tubing of the puncturing needle; pulling out the puncturing needle, covering and fixing the guide wire on the body surface of the human body by aseptic dressing; during secondary puncturing, causing the puncturing needle to reach the puncturing position along the guide wire. The puncturing instrument disclosed by the invention is suitable for patients who need to receive paracentesis for multiple times, one-time success of the subsequent puncturing is guaranteed when the puncturing instrument is used, somatic damage and psychological burden caused by multi-time puncturing to the patient can be avoided, and complications, such as headache, lumbago and the like, are greatly reduced.

Description

[0001] This application is a divisional application. The filing date of the original application is May 3, 2012, the application number is 201210134280.6, and the title of the invention is a puncture device and its method of use. technical field [0002] The invention relates to a medical puncture instrument and a method for using the instrument. Background technique [0003] Puncture is an effective means of clinical diagnosis and clinical treatment, including lumbar puncture, thoracentesis, paracentesis and so on. Among them, lumbar puncture is a commonly used diagnosis and treatment technique in neurology and surgery. It uses a lumbar puncture needle to puncture the subarachnoid space of the lumbar spinal cord. In the middle of the back, a lumbar puncture needle with a core is used to penetrate about 5cm, puncture the dura mater, pull out the needle core, and the cerebrospinal fluid flows from the hollow puncture needle. Drain out. It can be used to measure intracrania...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34
CPCA61B17/34
Inventor 徐舒王明磊
Owner 江苏省华星医疗器械实业有限公司
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