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Cannula puncture device for laparoscopic surgery

A laparoscopic technology for surgery, applied in the field of medical devices, can solve the problems of increasing the operation steps of laparoscopic surgery, reducing the use effect of a cannula puncture device, etc., to achieve the effect of increasing the scope of application and reducing the operating burden

Inactive Publication Date: 2021-03-26
XIANGYA HOSPITAL CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Existing cannula puncture devices usually adopt the structure of a single inner diameter of the cannula, so that the cannula can only meet the puncture operation of a puncture needle with a specific diameter. When the puncture needle needs to be replaced, the puncture cannula needs to be replaced at the same time, thereby Increased the operation steps of laparoscopic surgery and reduced the effect of using the cannula puncture device

Method used

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  • Cannula puncture device for laparoscopic surgery
  • Cannula puncture device for laparoscopic surgery
  • Cannula puncture device for laparoscopic surgery

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0035] like Figure 1-Figure 4 As shown, a sleeve puncture device for laparoscopic surgery includes a puncture sleeve 1, and a puncture needle 2 that runs through the puncture sleeve 1:

[0036] The top of the puncture cannula 1 is provided with a head cover 12, and the head cover 12 is provided with a positioning groove 13;

[0037] The top of the puncture needle 2 is provided with a contact 21, and the bottom of the contact 21 is provided with a positioning rod 22;

[0038] Connect the contact 21 with the head cover 12 through the corresponding insertion of the positioning rod 22 and the positioning groove 13;

[0039] The inner wall of the opening end of the pun...

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Abstract

The invention discloses a cannula puncture device for laparoscopic surgery. The cannula puncture device comprises a puncture cannula and a puncture needle arranged in the puncture cannula in a penetrating mode; a cannula head cover is arranged at the top of the puncture cannula, and a positioning groove is formed in the cannula head cover; a contact is arranged at the top of the puncture needle, and a positioning rod is arranged at the bottom of the contact; the contact is connected with the cannula head cover through corresponding insertion of the positioning rod and the positioning groove; and an internal thread is arranged on the inner wall of the open end of the puncture cannula and is in threaded rotating connection with the outer wall of an adjusting pipe to adjust the inner diameterof the puncture cannula. According to the cannula puncture device, the adjusting pipe connected into the puncture cannula is adopted, the adjusting pipes with different inner diameters can be freelyrotated to be connected with the puncture cannula according to the aperture of skin needing to be punctured in an actual surgery, on the basis that the puncture cannula is not replaced, the puncture effect of the puncture needles with different diameters is achieved, and the operation burden of the laparoscopic surgery is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a sleeve puncture device for laparoscopic surgery. Background technique [0002] Laparoscopic surgery is a newly developed minimally invasive method, and it is an inevitable trend in the development of future surgical methods. The traditional method of laparoscopic surgery is to make three small 1 cm incisions on the patient's waist, and insert a trocar into each. Pipeline-shaped working channel, all operations will be carried out through these three pipes in the future; and then use special lengthened surgical instruments to complete the same steps as open surgery under TV monitoring to achieve the same surgical effect, so it is necessary to use a cannula puncture device to perform Auxiliary operation to meet surgical requirements. [0003] Existing cannula puncture devices usually adopt the structure of a single inner diameter of the cannula, so that the cannula ca...

Claims

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Application Information

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IPC IPC(8): A61B17/34
CPCA61B17/3439A61B2017/3433
Inventor 肖瑶朱剑熹刘诗晴龚连生陈子华刘国栋李嘉荣欧阳锡武
Owner XIANGYA HOSPITAL CENT SOUTH UNIV
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