Subcutaneous emphysema prevention cannula puncture device

Abstract

The application provides a subcutaneous emphysema-preventing cannula puncture device, which comprises a puncture device and a sealing pipe sleeve arranged at a needle tube of the puncture device, characterized in that the sealing pipe sleeve is connected with an external air source through a connecting pipe, the sealing pipe sleeve comprises extrusion sleeve capsules at two ends and a connecting sleeve at a middle part, and the extrusion sleeve capsules are flat; and the application can seal the puncture area and prevent leakage and the like.

Description

Technical Field

[0001] This invention relates primarily to the field of medical devices, and more particularly to a subcutaneous emphysema-preventing cannula puncture device. Background Technology

[0002] A puncture device is a surgical instrument that punctures the abdominal wall and provides a passage for other surgical instruments to enter the body cavity; it is a type of minimally invasive surgical instrument.

[0003] However, leakage may occur in the puncture area during the puncture process, especially when there is peritoneal fluid, which may easily lead to overflow. Summary of the Invention

[0004] To address the aforementioned deficiencies in the prior art, the present invention provides a subcutaneous emphysema-preventing cannula puncture device, comprising a puncture device and a sealing sleeve 1 fitted over the needle tube of the puncture device. The sealing sleeve 1 is characterized in that it is connected to an external air source via a connecting tube 10, and the sealing sleeve 1 comprises compression sleeves 11 at both ends and a connecting sleeve located in the middle, wherein the compression sleeves 11 are flat.

[0005] Preferably, the connecting sleeve is a rigid component with an inner diameter larger than the outer diameter of the puncture needle tube.

[0006] Preferably, a one-way valve is provided at the end of the connecting pipe 10 away from the sealing sleeve 1.

[0007] Preferably, the compression sleeve 11 includes a limiting bottom 111 and a sealing sidewall 112, wherein the coefficient of thermal expansion of the limiting bottom 111 is smaller than the coefficient of thermal expansion of the sealing sidewall 112.

[0008] Preferably, the wall thickness of the sealing sleeve 1 is less than 1 mm.

[0009] Preferably, the sealing sleeve 1 is made of transparent material.

[0010] Preferably, the gas volume of the sealing sleeve 1 is less than 15 ml.

[0011] Preferably, the distance between the sealing sleeve 1 and the tip of the puncture needle tube is less than 5 cm.

[0012] The beneficial effects of this invention are:

[0013] 1. It can seal the puncture area to prevent leakage and other issues. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the sealing sleeve of the present invention;

[0015] Figure 2 This is a structural diagram of the sealing sleeve of the present invention after use;

[0016] In the picture,

[0017] 1. Sealing sleeve; 10. Connecting pipe; 11. Compression sleeve; 111. Limiting bottom; 112. Sealing sidewall. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of the present invention and to make the above-mentioned features, objectives, and advantages of the present invention clearer and easier to understand, the present invention will be further described below with reference to embodiments. These embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0019] refer to Figure 1-2 As shown, the present invention includes: a puncture device and a sealing sleeve 1 fitted over the needle tube of the puncture device. The sealing sleeve 1 is characterized in that it is connected to an external air source through a connecting tube 10. The sealing sleeve 1 includes compression sleeves 11 at both ends and a connecting sleeve located in the middle. The compression sleeves 11 are flat.

[0020] The sealing sleeve 1 is less than 5 cm from the tip of the trocar needle. The connecting sleeve is a rigid component with an inner diameter larger than the outer diameter of the trocar needle. A one-way valve is installed at the end of the connecting tube 10 furthest from the sealing sleeve 1. The compression sleeve 11 includes a limiting base 111 and a sealing sidewall 112, with the coefficient of thermal expansion of the limiting base 111 being smaller than that of the sealing sidewall 112. The wall thickness of the sealing sleeve 1 is less than 1 mm. The sealing sleeve 1 is made of transparent material. The gas volume of the sealing sleeve 1 is less than 15 ml.

[0021] After the puncture is completed, the sealing sleeve 1 is inflated, and the connecting sleeve is fixed at the puncture position to perform initial sealing. The compression sleeves 11 at both ends will compress the puncture area to complete further sealing.

[0022] The above embodiments are merely illustrative of the principles and effects of this patent application and are not intended to limit this patent application. Any person skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this patent application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this patent application shall still be covered by the claims of this patent application.

Claims

1. A subcutaneous emphysema-preventing trocar, comprising: The trocar and the sealing sleeve (1) fitted over the trocar needle tube are characterized in that the sealing sleeve (1) is connected to an external air source via a connecting tube (10), and the sealing sleeve (1) includes compression sleeves (11) at both ends and a connecting sleeve located in the middle, wherein the compression sleeves (11) are flat. The connecting sleeve is a rigid component with an inner diameter larger than the outer diameter of the puncture needle tube. The compression sleeve (11) includes a limiting bottom (111) and a sealing sidewall (112), wherein the coefficient of expansion of the limiting bottom (111) is smaller than the coefficient of expansion of the sealing sidewall (112).

2. A subcutaneous emphysema-preventing trocar puncture device according to claim 1, characterized in that: A one-way valve is installed at the end of the connecting pipe (10) away from the sealing sleeve (1).

3. The subcutaneous emphysema-preventing trocar puncture device according to claim 1, characterized in that: The wall thickness of the sealing sleeve (1) is less than 1 mm.

4. The subcutaneous emphysema-preventing trocar puncture device according to claim 1, characterized in that: The sealing sleeve (1) is made of transparent material.

5. The subcutaneous emphysema-preventing trocar puncture device according to claim 1, characterized in that: The gas volume of the sealing sleeve (1) is less than 15 ml.

6. The subcutaneous emphysema-preventing trocar puncture device according to claim 1, characterized in that: The sealing sleeve (1) is less than 5 cm away from the tip of the puncture needle.

Images