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Novel remaining needle

An indwelling needle and a new type of technology, applied in the field of medical devices, can solve problems such as pressure wounds in patients, and achieve the effects of reducing the feeling of pressure, reducing the risk of sliding displacement, and reducing the risk of pressure ulcers

Pending Publication Date: 2021-07-27
SICHUAN PROVINCIAL PEOPLES HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a new type of indwelling needle, which can reduce the patient's local pressure and improve the comfort of use, in view of the current problem that the indwelling needle joint is easy to crush the skin of the patient's infusion site

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Example 1, see Figure 1-Figure 7 ,

[0051] A new type of indwelling needle, including an adapter assembly, the adapter assembly includes a first joint 1 and a sleeve arranged on the first joint 1, a needle core 14 is sleeved in the sleeve, and the needle core One end of 14 is a sharp part, and the sharp part protrudes from the sleeve. The other end of the needle core 14 is connected with a needle plug 13. When the needle plug 13 drives the needle core 14 to pull out the first joint 1, The first joint 1 is used to connect the sleeve with the infusion tube 8 and fix the sleeve on the patient's body. The joint part is a flat surface or a curved surface matched with the patient's skin contact position. In this solution, the needle core 14 is punctured into the patient's blood vessel with the cannula. After the cannula is put in place, the needle plug 13 drives the needle core 14 to pull out the first joint 1, and then connect the first joint 1 with the infusion tube 8. ...

Embodiment 2

[0086] The difference from Embodiment 1 is that, as Figure 8 As shown, the positioning member 6 is Y-shaped. In this way, after the two ends of the positioning member 6 are attached to the skin, there is still a certain distance between the two ends of the positioning member 6 and the two first positioning pieces 3 . Therefore when using film or adhesive tape to fix the positions of the first positioning piece 3 and the positioning piece 6, the film or adhesive tape can also be stuck between the skin between the positioning piece 6 and the first positioning piece 3 at the same time, thereby the film or adhesive tape can be enlarged. The total bonding area between the tape and the skin improves the positional stability of the film or tape, and also improves the positional stability of the positioning member 6 , the first positioning piece 3 and the first joint 1 .

[0087] Of course, the first positioning piece 3 can also be set to a smaller area, so that there is skin availa...

Embodiment 3

[0089] The difference from Embodiment 1 and Embodiment 2 is that the sleeve 12 is connected at the axial center of the first joint 1 (that is, the indwelling part of the conventional indwelling needle), so when in use, the needle core 14 It is in a straight line state, which can facilitate pulling out the needle core 14 from the first joint 1 and the sleeve 12 . At the same time, the arched degree of the positioning member 6 is higher, so that the position of the positioning member 6 can be fixed after first fixing the position of the first joint 1 .

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Abstract

The invention relates to the field of medical instruments, and in particular relates to a novel remaining needle which comprises an adapter assembly, the adapter assembly comprises a first connector and a sleeve arranged on the first connector, a needle core is arranged in the sleeve in a sleeved mode, one end of the needle core is a sharp part, the sharp part extends out of the sleeve, the other end of the needle core is connected with a needle plug, when the needle plug drives the needle core to be pulled out of the first connector, the first connector is used for communicating the sleeve with an infusion tube and fixing the sleeve to the body of a patient, the side, attached to the skin of the body surface of the patient, of the first connector is a press-fit part, the press-fit part is a flat surface, or a curved surface which matches the skin contact position of the patient. According to the novel remaining needle, the risk of sliding displacement of a connecting base in the infusion process is greatly reduced, the infusion safety is improved, and meanwhile the risk that the skin of the patient is injured due to back-and-forth sliding friction of the skin of the first connecting base is further reduced.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a novel indwelling needle. Background technique [0002] The indwelling needle needs to be indwelled on the patient's body for a long time. The current structure of the indwelling needle mainly includes a soft catheter / cannula that can be indwelled in the blood vessel, and a puncture guiding needle core. The core is soft and elastically deformable to some extent, while being stiffer relative to the catheter / cannula and capable of guiding the catheter / cannula through the skin and blood vessels. [0003] When in use, the catheter / cannula and needle core are punctured into the blood vessel together. When the catheter / cannula enters the proper position of the blood vessel, the needle core is withdrawn, and only the soft catheter / cannula is left in the blood vessel for infusion therapy ; Wherein the catheter / sleeve is connected to a joint, the inner cavity of the joint has a rubber sto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/158
CPCA61M5/158A61M2005/1586A61M2005/1587
Inventor 王剑吴娟彭玉娇
Owner SICHUAN PROVINCIAL PEOPLES HOSPITAL
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