Trocar, sealing assembly and sealing film for sealing assembly

A technology of sealing components and sealing membranes, which is applied in the field of medical devices to achieve the effect of increasing the circumferential circumference, taking into account the convenience of switching, and reducing the wrapping area

Active Publication Date: 2022-02-18
FENGH MEDICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the existing sealing membrane design, it is difficult to take into account the sealing reliability, switching convenience and operating comfort at the same time. Therefore, it is urgent to make improvements on the basis of the existing design in order to achieve a more ideal effect

Method used

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  • Trocar, sealing assembly and sealing film for sealing assembly
  • Trocar, sealing assembly and sealing film for sealing assembly
  • Trocar, sealing assembly and sealing film for sealing assembly

Examples

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Embodiment Construction

[0035] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. In describing the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial direction", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the desc...

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PUM

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Abstract

The invention discloses a sealing membrane for a trocar, comprising a proximal opening, a distal hole and a sealing wall extending from the distal hole to the proximal opening, the distal hole is formed by a sealing lip for accommodating insertion and form an airtight seal; the sealing wall includes a plurality of folded regions, each of which includes several folded units, each of which extends laterally from the distal hole, and each of the folded units The wrinkle unit includes a wrinkle peak and a wrinkle valley; in the extended length, the vertical distances from the wrinkle peak to the wrinkle valley of each of the wrinkle units are equal. The pleats provided at the distal hole can increase the circumference in the circumferential direction, which can not only provide sealing for laparoscopic instruments with different diameters, but also facilitate demoulding during manufacturing, and facilitate processing and manufacturing.

Description

technical field [0001] The invention relates to a surgical instrument, in particular to a trocar and a sealing assembly thereof, belonging to the field of medical instruments. Background technique [0002] The use of endoscopic procedures in surgery has been widely accepted and offers many advantages over traditional open surgery, including less trauma, faster healing, and a reduced risk of infection. A trocar is a surgical instrument used to establish an artificial channel into a body cavity in endoscopic surgery, and usually consists of a cannula assembly and a puncture core assembly. Its general clinical use method is: first cut a small opening on the patient's skin, then pass the puncture core assembly through the cannula assembly, and then drive the cannula assembly to penetrate the abdominal wall through the skin opening and enter the body cavity. Once in the body cavity, the puncture core assembly can be removed, leaving the cannula assembly as a passage for the inst...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/00
CPCA61B17/00234A61B2017/0034
Inventor 孙宝峰马猛
Owner FENGH MEDICAL CO LTD
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