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Arterial puncture indwelling needle with pressing device

A technique of arterial puncture and indwelling needle, which is applied in the direction of needles and instruments introduced into the body, etc., to achieve the effects of reducing workload, making medical treatment more comfortable, and reducing pollution

Pending Publication Date: 2020-04-28
THE SECOND AFFILIATED HOSPITAL TO NANCHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above-mentioned technical problems are common in clinical practice, and because of the specificity and possible anatomical variation of blood vessels in different patients, it is difficult to effectively solve them solely by relying on the existing arterial puncture needle and the technical training of clinicians

Method used

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  • Arterial puncture indwelling needle with pressing device
  • Arterial puncture indwelling needle with pressing device
  • Arterial puncture indwelling needle with pressing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0043] The operator holds the inner tube needle seat part 4 in one hand to puncture the artery. When the steel needle core inner tube needle tube 3 successfully punctures the artery and sees blood return, the other hand holds the arterial indwelling needle indwelling needle seat 6 to insert the indwelling needle tube part 5 into the artery, and then Press the pressing bar 11, make the hook teeth 13 at the far end of the pressing bar engage with the hook teeth 14 at the far end of the notch, seal the rubber tube 8, and finally withdraw the inner tube needle core 3 from the outer tube of the indwelling needle completely. At this time, blood and arteries If the needle seat of the indwelling needle is blocked, the arterial sensor connecting tube and the thread 7 on the outside of the top end of the indwelling needle seat 6 can be rotated and connected calmly. After successfully squeezing the pressing bar toward the proximal end, the rubber pad 15 can be retracted according to its ela...

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Abstract

The invention belongs to the technical field of medical instruments, and discloses an arterial puncture indwelling needle with a pressing device, which comprises a steel needle core inner tube and anarterial indwelling needle outer tube sleeved outside the steel needle core, the steel needle core inner tube consists of an inner tube needle tube part and an inner tube needle seat part; the inner tube needle tube part is inserted into the inner tube needle seat part; the arterial indwelling needle outer tube comprises an indwelling needle tube and an indwelling needle base, and the indwelling needle tube is inserted into the indwelling needle base. The pressing strip block can seal the rubber pipe when being extruded by external force, and the hook tooth structures are arranged at the far end of the pressing strip block and the far end of the notch, so that the far end of the pressing strip block is engaged with the far end of the notch to fix the position of the pressing strip block. Arubber pad is arranged at the near end of the notch and can extrude the pressing strip block to prevent the occlusion position from loosening, deformation is generated when the occlusion position isextruded by external force, the occlusion opening is loosened, and the rubber pipe in the notch recovers to the natural shape. According to the invention, extra workload is not increased; design is simple, and practicability is high.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to an arterial puncture indwelling needle with a pressing device. Background technique [0002] At present, the commonly used prior art in the industry is as follows: arterial puncture catheterization is widely used clinically because it can rapidly and continuously monitor the patient's ambulatory blood pressure and conveniently collect the patient's blood sample. The arterial puncture needle currently used clinically is generally composed of an inner tube (steel needle core) and an outer tube (indwelling needle). Connect the catheter to the arterial sensor. Before withdrawing the steel needle core from this operation, it is often necessary to pre-estimate the approximate position of the front end of the indwelling needle in the artery and effectively compress the front end of the indwelling needle to prevent blood from overflowing from the indwelling needle seat, and then...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/158
CPCA61M5/158
Inventor 华福洲魏根王羲凤
Owner THE SECOND AFFILIATED HOSPITAL TO NANCHANG UNIV
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