Device for posting prostate bracket made from nickel titanium

A prostate and implanter technology, applied in dilators, catheters, surgery, etc., can solve the problems of sudden cold and hot operating conditions, achieve mild operating conditions, protect tissues and organs, and shorten the time

Inactive Publication Date: 2008-08-06
陈鹏宏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the shortcomings of nickel-titanium prostate stent implanters in the prior art, which are prone to complications and operating conditions are suddenly cold and hot, the present invention provides a device that will not cause complications due to perfusion of ice saline or warm water. mild nickel-titanium prostate stent

Method used

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  • Device for posting prostate bracket made from nickel titanium
  • Device for posting prostate bracket made from nickel titanium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] refer to figure 1 , a nickel-titanium prostate stent implanter, the main body is a catheter 1 with a diameter of 12Fr, the chamber of the catheter is provided with a microwave transmitting antenna connected to a microwave transmitter, and the rear portion of the microwave transmitting antenna is a microwave shielding part 2, The front part is the microwave emitting part 3. The meshed nickel-titanium prostate stent 4 is deformed and shrunk at low temperature to be sleeved on the catheter 1, and the position of the junction point between the microwave shielding part 2 and the microwave emitting part 3 corresponds to the center point position of the nickel-titanium prostate stent 4, And the transition temperature of the nickel-titanium prostate stent 4 is 40°C.

[0019] First, at 0-10°C, the nickel-titanium prostate stent 4 whose diameter is larger than the outer diameter of the catheter 1 in the initial state is sleeved on the catheter 1, so that the position of the junc...

Embodiment 2

[0023] refer to figure 2 The front part of the catheter 1 is provided with a balloon 5 , the balloon 5 is located in front of the stent 4 , and the tube wall of the catheter 1 is provided with a balloon lumen 6 communicating with the balloon 5 . When in use, the stent 4 is sent to the prostate through the catheter 1 through the urethra, and after reaching the position, the balloon lumen 6 is used to inflate the balloon 5, and the inflated balloon 5 can help the catheter to be positioned so that it does not deviate during the operation. The rest of the structure and implementation are the same as in Embodiment 1.

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Abstract

An implanter for the NiTi scaffold of prostate is composed of a catheter for sleeving the scaffold whose transition temp is higher than normal body temp, and a microwave emitting antenna arranged in the internal cavity of said catheter and consisting of front emitting part and rear microwave shielding part. Said scaffold is positioned in the action range of microwave for heating it. Its advantages are simple structure, short operation time, and high effect to protect tissue and organ.

Description

(1) Technical field [0001] The invention relates to a nickel-titanium prostate stent inserter. (2) Background technology [0002] Prostatic hyperplasia is one of the common diseases of elderly men. The incidence rate is 50% to 70% for those over 50 years old, and as high as 90% for those over 80 years old. 25% of patients need surgical treatment. At present, surgical treatment is still mainly open and transurethral, ​​but open surgery causes too much trauma to patients. Since the 1990s, scholars have proposed the use of nickel-titanium alloys to make prostate stents, and place the prostate stents in the prostatic urethra to relieve prostate cancer. Urethral obstruction and stricture caused by hypertrophy. [0003] Nickel-titanium alloy is an alloy with temperature memory function. It deforms and shrinks at low temperature (generally 0-10°C), and can return to its original shape at a specific temperature. Currently, knitted and mesh nickel-titanium prostate stents are gener...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M25/08A61M29/04
Inventor 陈鹏宏
Owner 陈鹏宏
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