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single-use trocar

A trocar, a disposable technology, applied in puncture needles, puncture needles, medical science, etc., can solve the problems of difficult to control the size of the incision, inconvenient operation, obvious pain, etc., to reduce bleeding and postoperative infection, use Safe and reliable, the effect of shortening the operation time

Active Publication Date: 2017-12-26
无锡市瑞源普斯医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the puncture cone does not have a blade, the operation process is more complicated, which prolongs the operation time, and it is difficult to control the size of the incision. If the incision is too large, it will affect the sealing of the abdominal cavity. In addition, there is a threaded structure in the middle of the puncture sleeve, which needs to be rotated when entering the abdominal wall. At the same time, it needs to be rotated to dial out, which is inconvenient to operate
The serrated anti-slip ring on the surface of the puncture cannula is relatively sharp, which sometimes leads to bleeding in the puncture tunnel. The friction between the puncture cannula with the threaded structure and the abdominal wall tissue is relatively large, which increases tissue trauma, causes obvious postoperative pain, and prolongs the healing time

Method used

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Examples

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Embodiment Construction

[0061] Refer to attached Figure 1-23 , the disposable puncture device includes a puncture sleeve 1, a valve body 2, an air injection valve 17, an air injection switch 16, a one-way sealing valve 19, a flat sealing pad 20, a self-adjusting sealing cap 4, a locking and fixing cover 3, a guide Sealing cap 5, hemispherical sealing ring 21, locking and fixing ring 6, positioning guide cover 7, puncture cone assembly.

[0062] The front part of the puncture cannula 1 is provided with a tapered beveled surface 1-1, and the outer surface of the puncture cannula is covered with granular protrusions 1-2 to increase friction and effectively prevent the puncture cannula from sliding on the abdominal wall. The granular protrusions on the outer surface of the puncture cannula are flat and smooth, with little tissue damage and non-slip.

[0063] The rear portion of the puncture sleeve 1 is provided with a puncture sleeve installation seat 1-3, and a puncture sleeve installation positioning...

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Abstract

The invention relates to a disposable puncture outfit which is a laparoscope supporting surgical instrument suitable for establishing a working channel for an abdominal surgery during laparoscopy and surgery. The disposable puncture outfit comprises a puncture sleeve, a valve body, a gas injection valve, a gas injection switch, a one-way sealing valve, a sealing flat gasket, a self-adjusting sealing cap, a locking fixing cover, a guide sealing cap, a semispherical sealing ring, a locking fixing ring, a positioning guide cover and a puncture cone component, wherein a diagonal plane with taper is arranged on the front part of the puncture sleeve; the outer surface of the puncture sleeve is full of granular bulges; and the puncture cone component comprises a puncture knife, a puncture knife handle, a puncture cone head, a puncture cone lower sleeve, a puncture cone upper sleeve, a puncture cone handle, a trigger safety button and a puncture cone handle cover cap.

Description

technical field [0001] The invention relates to a disposable puncture device, which is a laparoscopic matching surgical instrument suitable for establishing a working channel for abdominal surgery during laparoscopic examination and operation. Background technique [0002] At present, the puncture cone of the disposable puncture device usually does not have a blade. During abdominal surgery, a small incision is first made in the patient's abdominal soft tissue, and then the olecranon-shaped puncture cone at the front end of the puncture cone of the disposable puncture device is inserted into the small incision in the patient's abdominal soft tissue. In the middle, as the puncture cone pierces the lower layer of soft tissue, it enters the soft tissue with the tapered oblique surface at the lower part of the puncture sleeve, and the puncture cone passes through the patient's abdominal soft tissue until the abdominal cavity, and the puncture sleeve is inserted into the abdominal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/34A61B17/00
CPCA61B17/00234A61B17/3417A61B17/3474A61B17/3494A61B2017/0034A61B2017/3419A61B2017/3454
Inventor 许祖年李君久许晓年
Owner 无锡市瑞源普斯医疗器械有限公司
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