CN211511989U - Puncture outfit - Google Patents

Abstract

The utility model discloses a puncture device, which comprises a cannula, one end of the cannula is provided with a puncture needle, the interior of the puncture needle is a hollow structure connecting the inside and the outside of the cannula, the puncture needle A suture needle is arranged inside, and the suture needle is connected with a pulling wire arranged in the sleeve, and the end of the pulling wire extends out of the sleeve. The use of the trocar can realize the pulling of the lungs, which is convenient for performing lung surgery operations on patients suffering from lung diseases, thereby avoiding large incisions on the skin and reducing the pain of the patients. The trocar of the utility model has the advantages of simple structure, convenient operation, and small surgical trauma, so it is suitable for the general application of pulmonary surgical operation.

Description

a puncture device

technical field

The utility model belongs to the technical field of medical instruments, in particular to a puncture device.

Background technique

When performing lung surgery on a person with lung disease, it is necessary to remove the gas inside the alveoli first. At this time, the lung will collapse. In order to facilitate the operation, the lung needs to be pulled up to expose the internal organs. At present, the lungs are pulled with forceps, which requires a large incision on the skin, which increases the difficulty and trauma of the operation.

Utility model content

In order to solve the above problems existing in the prior art, the purpose of the present invention is to provide a trocar, which is convenient to operate and greatly reduces the trauma of surgery.

In order to achieve the above object, the utility model provides the following technical solutions:

A puncture device comprising a cannula, one end of the cannula is provided with a puncture needle, the interior of the puncture needle is a hollow structure connecting the inside and the outside of the cannula, and a suture needle is arranged in the puncture needle , the suture needle is connected with a pulling wire arranged in the sleeve, and the end of the pulling wire extends out of the sleeve.

Further, a stopper is provided between the puncture needle and the cannula.

Further, the cross-section of the stop device is larger than the cross-section of the puncture needle and the cannula.

Further, the end of the puller wire is provided with a positioning device for fixing the puller wire.

Preferably, the puncture needle is made of stainless steel.

Preferably, the suture needle is made of stainless steel.

Preferably, the pulling wire adopts nylon thread or metal wire.

Beneficial effects: The utility model provides a puncture device, which can be used to enter the thoracic cavity through a puncture route, realize the pulling and exposure of the lungs, and facilitate the minimally invasive surgery on patients suffering from lung diseases, thereby avoiding opening on the skin. Larger incision, reducing patient pain. The trocar of the utility model has the advantages of simple structure, convenient operation, and small surgical trauma, so it is suitable for the general application of pulmonary surgical operation.

Description of drawings

FIG. 1 is a schematic structural diagram of the trocar according to the present invention.

In the figure: 1, cannula; 2, puncture needle; 3, suture needle; 4, pulling wire; 5, stop device; 6, positioning device.

Detailed ways

The present invention will be further described below in conjunction with specific embodiments, but the embodiments are only exemplary and do not constitute any limitation to the scope of the present invention. It should be understood by those skilled in the art that the details and forms of the technical solutions of the present invention can be modified or replaced without departing from the spirit and scope of the present invention, but these modifications and replacements all fall within the protection scope of the present invention .

A trocar, as shown in FIG. 1 , the trocar includes a cannula 1, one end of the cannula 1 is provided with a puncture needle 2, and the interior of the puncture needle 2 is a hollow connecting the inside and the outside of the cannula 1 Structure, the puncture needle 2 is provided with a suture needle 3 , the suture needle 3 is connected with a puller wire 4 arranged in the cannula 1 , and the end of the puller wire 4 protrudes out of the cannula 1 .

When performing lung surgery, the puncture needle 2 penetrates the skin first, the suture needle 3 penetrates the lung, and the suture needle 3 is used to connect the retractor thread 4 to the lung, cut off the suture needle 3, and pull the retractor thread in vitro. 4, thereby driving the suture needle 3 to pull the lung apart for surgery. The puncture device is very convenient to operate, and the puncture needle 2 only penetrates a small hole on the skin, so that minimally invasive surgery can be performed and the trauma of the surgery is greatly reduced.

A stopper 5 is provided between the puncture needle 2 and the cannula 1 . When the puncture needle 2 penetrates the skin, the blocking device 5 is used to stop the cannula 1, thereby preventing the cannula 1 from piercing the skin.

The stop device 5 can stop a step, and the cross section of the stop step is larger than the cross section of the puncture needle 2 . Further, the cross section of the stop step is larger than the cross section of the sleeve 1 .

In addition, one end of the puller wire 4 protruding from the sleeve 1 is provided with a positioning device 6 to fix the puller wire 4 at different positions relative to the sleeve 1 . Therefore, when performing operations on different patients, according to different needs, the pulling wire 4 can be pulled out to different lengths and fixed.

In this preferred embodiment, both the puncture needle 2 and the suture needle 3 are made of stainless steel. Of course, the puncture needle 2 and the suture needle 3 can also be made of other materials, as long as they are harmless to the human body and have a certain penetrating power.

Preferably, the pulling wire 4 is a nylon thread. The nylon thread is soft, easy to bend, and has a certain strength, so it is not easy to break when pulled. Of course, the pulling wire 4 can also be made of other materials such as metal wire.

Claims (7)

1. A puncture device, characterized in that: the puncture device comprises a cannula, one end of the cannula is provided with a puncture needle, and the interior of the puncture needle is a hollow structure that communicates the inside and the outside of the cannula, and the puncture needle is provided with a puncture needle. A suture needle is arranged in the needle, and the suture needle is connected with a pulling wire arranged in the sleeve, and the end of the pulling wire extends out of the sleeve. 2 . The trocar according to claim 1 , wherein a stopper is provided between the puncture needle and the cannula. 3 . 3 . The trocar according to claim 2 , wherein the cross-section of the stopper device is larger than the cross-section of the puncture needle and the cannula. 4 . 4. The trocar according to claim 1, wherein the end of the puller wire is provided with a positioning device for fixing the puller wire. 5 . The trocar according to claim 1 , wherein the puncture needle is made of stainless steel. 6 . 6. The trocar according to claim 1, wherein the suture needle is made of stainless steel. 7 . The trocar according to claim 1 , wherein the pulling wire is a nylon thread or a metal wire. 8 .

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