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Novel simple puncture outfit

A puncture device and simple technology, applied in the field of new simple puncture devices, can solve problems such as unfavorable recovery, large puncture wound, and large patient injury, and achieve the effect of facilitating recovery and reducing injuries

Pending Publication Date: 2019-10-29
VHMED NANTONG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cutting edges of the blades in the prior art are all corner cutting edges. Although this sharp corner cutting edge helps to reduce the puncture resistance, the resulting puncture wound is very large, which makes the operation cause great harm to the patient. Good for postoperative recovery

Method used

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  • Novel simple puncture outfit
  • Novel simple puncture outfit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] like Figure 2 to Figure 9 As shown, the novel simple puncture device of the present embodiment includes a puncture needle 1 and a puncture tube 2;

[0070] The puncture needle 1 includes a needle shaft 11 and a needle cover 10;

[0071] The needle bar 11 comprises a needle base 111, a needle body 112 and a needle head 113 positioned at the end of the needle body 112, one end of the needle body 112 is connected with the needle base 111, and the needle cover 10 is buckled on the needle base 111; the needle base 111 is provided with The positioning boss 110, the needle cover 10 is provided with a positioning hole 100, the positioning boss 110 corresponds to the position of the positioning hole 100, the positioning boss 110 is closely matched with the positioning hole 100, the friction between the positioning boss 110 and the positioning hole 100 The force helps the needle cover 10 to be tightly fastened on the needle seat 111, so that it is not easy to slip off;

[0072...

Embodiment 2

[0076] The difference between this embodiment and Embodiment 1 is only the needle 113, Figure 12 with Figure 13 It is a front view and a top view of the needle head 113 of this embodiment. The needle head 113 used in the trocar of this embodiment includes a positioning head 1130, a blade edge 1131, a guide body 1132 and a positioning guide body 1133. The positioning head 1130 is located at the front end of the needle head 113. , the blade edge 1131 and the guide body 1132 are along the length direction of the needle bar 11, the positioning guide body 1133 connects the positioning head 1130 and the guide body 1132, and the number of blade edges 1131 is four, arranged in a cross shape; the cutting edges of all blade edges 1131 Both are round cutting edge 11310.

Embodiment 3

[0078] Figure 14 with Figure 15 It is a front view and a top view of the needle 113 of this embodiment. The difference between this embodiment and Embodiment 2 is only the layout of the blades 1131 on the needle 113. The four blades 1131 on the needle 113 of this embodiment are oblique Cross arrangement.

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Abstract

The invention discloses a novel simple puncture outfit. The novel simple puncture outfit comprises a puncture needle and a puncture tube, a needle head of a needle bar of the puncture needle comprisesa positioning head, blade edges and a guiding body, the positioning head is located at the foremost end of the needle head, and the blade edges and the guiding body are in the length direction of theneedle bar, wherein a cutting edge of at least one of the blade edges is a round cutting edge, and the round cutting edges are less sharp than a corner cutting edge so that the size of a puncture wound can be reduced while reducing the puncture resistance, harm to a patient is reduced, and postoperative recovery is facilitated.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a novel simple puncture device. Background technique [0002] The trocar is a medical consumable, which is widely used in various minimally invasive surgeries. The puncture device of prior art comprises puncture needle and puncture tube, as figure 1 As shown, the needle head of the puncture needle includes a positioning head, a guide body and a blade. Furthermore, the blade edges are distributed symmetrically around the central axis of the puncture needle. The function of the blade edge is to assist in cutting the skin and tissue of the human body, so that the puncture device can enter the human body. The cutting edges of the blades in the prior art are all corner cutting edges. Although this sharp corner cutting edge helps to reduce the puncture resistance, the resulting puncture wound is very large, which makes the operation cause great harm to the patient. Conducive to p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34A61B90/00
CPCA61B17/3415A61B17/3417A61B17/3421A61B90/08A61B2017/3454A61B2017/3419A61B2090/08021
Inventor 王海鹰李韬梁小军谭庭甲
Owner VHMED NANTONG CO LTD
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