Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A water-cooled, electromagnetic technology, applied in medical science, catheters, surgery, etc., can solve problems such as water-cooled circulation systems, and achieve fast thermal response time, small size, and definite curative effect
Active Publication Date: 2018-05-29
WEST CHINA HOSPITAL SICHUAN UNIV
View PDF12 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0006] The present invention aims to provide a water-cooled electromagnetic hemostatic needle, which has a delicate structure. While solving the problem of the water cooling circulation system of the electromagnetic hemostatic needle, it can effectively reduce the size of the electromagnetic hemostatic needle, and can also adjust the position of the metal sleeve so that Through the principle of electromagnetic shielding, the number of effective gaps can be freely adjusted to one or more, thereby changing the range and effect shape of electromagnetic waves
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0039] Such as Figure 1-4 As shown, the present invention includes an outer conductor 1, an inner conductor 2, a dielectric layer 3, and a water conduit 5. The outer conductor 1 is a hollow cylinder, the inner conductor 2 is arranged in the outer conductor 1, and the space between the inner conductor 2 and the outer conductor 1 is filled. There is a dielectric layer 3, the inner conductor 2 is a hollow cylinder, the water guide pipe 5 is arranged in the inner conductor 2, the water guide pipe 5 is placed along the axial direction of the inner conductor 2, there is a gap between the water guide pipe 5 and the inner conductor 2, and the water guide pipe 5 The length is 14cm, the width is 0.8mm, the radius of the outer conductor 1 is 1.8mm, the thickness of the dielectric layer 3 is 0.9mm, and the radius of the inner conductor 2 is 0.9mm.
[0040] Preferably, the outer conductor 1, the inner conductor 2 and the water conduit 5 are coaxial.
[0041] Preferably, the outer conduct...
Embodiment 2
[0049] Such as Figure 5 As shown, the metal sleeve 10 whose length is greater than the distance between the farthest two slits 4 in Embodiment 1 is replaced with a metal sleeve 10 whose length is greater than the width of the slit 4, and the number of metal sleeves 10 is equal to the number of slits 4, That is, each slit 4 is equipped with a corresponding metal sleeve 10 .
[0050] Image 6 In order to add the temperature field contour distribution of the metal sleeve 10 in the first gap 41, it can be seen that the temperature field distribution is in a nearly cylindrical shape.
[0051] Figure 7 Adding the temperature field contour distribution of the metal sleeve 10 to the first gap 41 and the third gap 43, it can be seen that the temperature field distribution is a shape similar to "8", and Image 6 In combination, two heating shapes have been realized.
[0052] Figure 8 The result value of the reflection coefficient when adding the sleeve for the first slot 41 and ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention discloses a water-cooled electromagnetic bleeding-stopping needle, belonging to the field of medical devices. The water-cooled electromagnetic bleeding-stopping needle comprises an outer conductor (1), an inner conductor (2), a medium layer (3) and a water guide pipe (5), wherein the outer conductor (1) is a hollow cylinder, the inner conductor (2) is arranged in the outer conductor (1), the space between the inner conductor (2) and the outer conductor (1) is filled with the medium layer (3), the inner conductor (2) is a hollow cylinder, the water guide pipe (5) is arranged in the inner conductor (2), and placed along the axial direction of the inner conductor (2), and a gap is reserved between the water guide pipe (5) and the inner conductor (2). The water-cooled electromagnetic bleeding-stopping needle is ingenious in structure, while the problems existing in the water-cooling circulating systems of the traditional electromagnetic bleeding-stopping needles are solved, the size of the water-cooled electromagnetic bleeding-stopping needle provided by the invention is effectively reduced, further, by adjusting the position of a metal sleeve, the number of effective gaps is randomly regulated from one to more according to the electromagnetic shielding principle, so that the actuating range and effect shape of electromagnetic waves are changed.
Description
technical field [0001] The invention relates to a medical device, in particular to a water-cooled electromagnetic hemostatic needle. Background technique [0002] For liver neoplastic diseases, the best treatment option is recognized surgical resection. However, surgical resection of liver tumors is not suitable for every patient. If the primary or metastatic tumor of the liver metastasizes intrahepatically or extrahepatically, surgical resection at this time has no obvious significance; in addition, most patients with liver tumors in my country are often accompanied by severe liver cirrhosis due to long-term damage of hepatitis virus However, the reduced liver reserve function cannot tolerate surgical resection; in the above cases, only ablation of local tumor lesions to kill tumor cells has been widely approved. Before the operation, the surgeon will formulate a treatment plan according to the specific condition of the patient, and plan to perform surgical resection or lo...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more