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Sealing element for puncture device and puncture device

A trocar and seal technology, which is applied in the field of medical equipment and can solve the problem of no effective sealing of the vent of the trocar.

Inactive Publication Date: 2019-02-22
FENGH MEDICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the present invention aims to provide a sealing member and a trocar for a trocar, which solves the problem that there is no trocar not equipped with an air injection valve in the prior art, and there is no realization of a trocar vent. The problem of effective sealing to ensure the airtightness of the trocar when the insufflation valve is not configured

Method used

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  • Sealing element for puncture device and puncture device
  • Sealing element for puncture device and puncture device
  • Sealing element for puncture device and puncture device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] In this embodiment, the positioning member 11 and the sealing body 40 are independent components separated from each other.

[0056] The positioning member 11 is circular and has a certain circular width, which is beneficial for positioning in the casing magazine 20 . The annular positioning member 11 is more convenient to be set in the casing bin 20, and at the same time, it is more closely connected with other parts in the casing bin 20, and its position is also more stable. Of course, the positioning member 11 in the present invention can also be in other shapes, for example, it can also be a fan ring, as long as it meets the tight connection with other components in the casing magazine 20 .

[0057] In this embodiment, according to the connection structure between the connecting rod 121 and the positioning member 11, the sealing member is divided into two types:

[0058] The first type of seal 10

[0059] Please refer to Figure 5 and Figure 6 , the connecting ...

Embodiment 2

[0066] Please refer to Figures 12 to 13 , a sealing body 40 is also provided in the casing bin 20 . The sealing body 40 includes the first sealing body ( Figures 12 to 13 Not shown in ) and the second sealing body 42, the first sealing body and the second sealing body 42 play a role respectively, and realize sealing in the cannula storehouse 20 of the trocar. Cooperating with the form of the cannula chamber of the trocar in the prior art, the upper part of the second sealing body 42 is circular. The positioning member 11 is a positioning skirt 111 , and the positioning skirt 111 is disposed on the upper outer wall of the second sealing body 42 around the central axis of the second sealing body 42 . In order to facilitate the accommodating and positioning of the positioning member 11 in the casing magazine 20 , the upper end surface of the second sealing body 42 protrudes from the positioning skirt 111 . The second sealing body 42 in the present invention is not limited to...

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Abstract

The invention discloses a sealing element for a puncture device and the puncture device. The puncture device comprises a sleeve bin. The sleeve bin comprises a vent hole running through the wall of the sleeve bin. The sealing element comprises a positioning piece and a plug body. The positioning piece is fixed into the sleeve bin. At least part of the plug body is contained in the vent hole so asto seal the vent hole. The sealing element of the puncture device comprises the positioning piece on the sleeve bin and the plug body connected with the positioning piece. At least part of the plug body is movably arranged in the vent hole of the puncture device, and therefore effective sealing is formed in the puncture device and the pneumoperitoneum stability is facilitated when the puncture device is not equipped with a gas injection valve in the initial state. Since the gas injection valve only needs to be arranged on the puncture device needing gas injection, the manufacturing cost of thepuncture device is saved, the surgery occupied space of the puncture device is reduced in the surgery process, and the operation of a doctor is facilitated.

Description

technical field [0001] The invention relates to a surgical instrument, in particular to a sealing element and a puncturer for a puncturer, and belongs to the field of medical equipment. Background technique [0002] A trocar is a surgical instrument used to establish a passage into the abdominal cavity of a human body, including a puncture core and a puncture sleeve. In the specific operation process, the doctor generally opens a small opening in the patient's abdomen, and then aligns the puncture core of the puncture device with the small incision and moves downward while reciprocating and rotating, thereby driving one end of the puncture sleeve into the patient's abdominal cavity. After the puncture is completed, the puncture core is pulled out from the puncture sleeve, and the puncture sleeve forms a passage for other surgical instruments to enter and exit. In order to expand the space of the abdominal cavity and increase the distance between the various tissues, which i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/34
CPCA61B17/3421A61B17/34A61B2017/3419
Inventor 孙宝峰马占虎戴霞红
Owner FENGH MEDICAL CO LTD
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