CN1759898A - Device for posting prostate bracket made from nickel titanium - Google Patents
Device for posting prostate bracket made from nickel titanium Download PDFInfo
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- CN1759898A CN1759898A CN 200510061385 CN200510061385A CN1759898A CN 1759898 A CN1759898 A CN 1759898A CN 200510061385 CN200510061385 CN 200510061385 CN 200510061385 A CN200510061385 A CN 200510061385A CN 1759898 A CN1759898 A CN 1759898A
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- nickel titanium
- posting
- bracket made
- conduit
- microwave
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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
The present invention relates to a kind of device for posting prostate bracket made from nickel titanium.
(2) background technology
Hyperplasia of prostate is one of common disease of elderly men, and the sickness rate more than 50 years old is 50%～70%, and the sickness rate more than 80 years old is treated surgically up to 90%, 25% needs of patients.Operative treatment is still based on open and per urethra at present, but open surgery is excessive to the wound that patient causes, the scholar has proposed the use Nitinol and has made prostate bracket since the nineties, prostate branches is placed in the prostate-urethra, to remove because of the caused urethral obstruction of prostate hyperplasia, narrow.
Nitinol is the alloy with temperature memory function, and it shrinks in (being generally 0～10 ℃) distortion at low temperature, can restore to the original state again under specified temp.At present, generally use knitting shape and netted prostate bracket made from nickel titanium.
Application number is that the Chinese utility model patent of 90226379.X has been mentioned a kind of treatment hyperplasia of prostate memory alloy stent, prostate bracket made from nickel titanium just, it is connected on support casing on the conduit of front end band side opening in use at low temperatures, after intravesical perfusion brine ice makes bladder and urethra cooling, by conduit support is sent into prostate through urethra, and then in bladder and urethra, pour into warm water by conduit, warm water flows out from the side opening of catheter proximal end, the temperature of a frame peripheral is raise, until the transition temperature that reaches support, support expands and restores to the original state, and conduit is extracted out promptly finished implantation.Application number provides a kind of prostate memory metal scaffold tube inserter for 92239771.6 Chinese utility model patent, this inserter is a conduit, though the guide-tube structure that the structure of this conduit and aforementioned patent are mentioned is used to insert support is distinguished to some extent, but operation principle is the same, it all is elder generation's socket support at low temperatures, send into support behind cooling bladder and the urethra, then by catheter perfusion warm water, warm water flows out from the side opening of catheter proximal end, the temperature of a frame peripheral is raise, until the transition temperature that reaches support, support expands and restores to the original state.
By the introduction of front, can summarize that the existing shortcoming of device for posting prostate bracket made from nickel titanium is in the prior art: 1. be filled into intravital brine ice of people and warm water temperature and differ very big, organ sustains damage under the condition of suddenly cold and hot easily.2. need perfusion brine ice and warm water in human body when using inserter, easily cause some unpredictalbe complication.
(3) summary of the invention
In order to overcome the deficiency that easily produces complication, operating condition suddenly cold and hot when device for posting prostate bracket made from nickel titanium uses in the prior art, can not cause the device for posting prostate bracket made from nickel titanium of complication, operating condition gentleness when the invention provides a kind of the use because of perfusion brine ice, warm water.
The technical scheme that the present invention solves its technical problem is: device for posting prostate bracket made from nickel titanium, comprise and be used for the conduit that the socket transition temperature is higher than the support of normal body temperature, be provided with the microwave transmitting antenna that is connected with the microwave transmitter in the chamber of described conduit, the rear portion of described transmitting antenna is the micro-wave screening part, the front portion is the microwave radiating portion, and described support is positioned at the sphere of action of described microwave radiating portion.
Further, the front portion of described conduit is provided with air bag, and described air bag is positioned at the place ahead of described support, is provided with the inflation tube chamber that is communicated with described air bag in the tube wall of described conduit.
Further, the position of described microwave radiating portion is corresponding with the position of described support.
Further, the center position of the point of interface position of described micro-wave screening part and described microwave radiating portion and described support is corresponding.
Further, the diameter of described conduit is 12Fr, perhaps is 14Fr, perhaps is 16Fr.
Using method of the present invention is: under low temperature (0～10 ℃) prostate bracket made from nickel titanium of diameter under the original state greater than the conduit external diameter is socketed on the conduit earlier, makes support be positioned at the microwave radiating portion sphere of action of microwave antenna.Because Nitinol at low temperatures can contraction distortion, so support can closely be enclosed within on the conduit.By conduit support is sent into prostate through urethra, reach startup microwave emission instrument behind the position, the microwave generation heat by microwave transmission antennas transmit characteristic frequency makes the support position reach the transition temperature of support.After treating that support restores to the original state, conduit can be extracted, thereby finish the process of inserting.
Beneficial effect of the present invention is: 1. do not need in human body perfusion brine ice and warm water, avoid pouring into brine ice and warm water and cause some unpredictalbe complication, as muscle spasm etc.2. the operating condition gentleness has been avoided the operating condition of suddenly cold and hot in the prior art, has protected histoorgan effectively.3. by carry out microwave radiation heating, diabatic process is fast, and the whole surgery process time is shortened greatly, has alleviated patient's misery.4. structure is very simple.5. use very easy.
(4) description of drawings
Fig. 1 is the cutaway view of embodiment one described device for posting prostate bracket made from nickel titanium.
Fig. 2 is the cutaway view of embodiment two described device for posting prostate bracket made from nickel titanium.
(5) specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Embodiment one
With reference to Fig. 1, device for posting prostate bracket made from nickel titanium, main body are that diameter is the conduit 1 of 12Fr, are provided with the microwave transmitting antenna that is connected with the microwave transmitter in the chamber of described conduit, the rear portion of described microwave transmitting antenna is a micro-wave screening part 2, and the front portion is a microwave radiating portion 3.Netted prostate bracket made from nickel titanium 4 is out of shape contraction at low temperatures and is socketed on the conduit 1, the point of interface position of described micro-wave screening part 2 and described microwave radiating portion 3 and the center position of prostate bracket made from nickel titanium 4 are corresponding, and the transition temperature of prostate bracket made from nickel titanium 4 is 40 ℃.
Under 0～10 ℃ the prostate bracket made from nickel titanium 4 of diameter under the original state greater than conduit 1 external diameter is being socketed on the conduit 1 earlier, make micro-wave screening part 2 corresponding with the point midway of prostate bracket made from nickel titanium 4 with the point of interface position of microwave radiating portion 3, because the main launch point of microwave transmitting antenna is a micro-wave screening part 2 and the point of interface of microwave radiating portion 3, prostate bracket made from nickel titanium 4 is fixed on such position can makes support 4 the easiest being heated when the microwave transmission antennas transmit microwave.Because Nitinol at low temperatures can contraction distortion, so support 4 can closely be enclosed within on the conduit 1.By conduit 1 support 4 is sent into prostate through urethra, reach startup microwave emission instrument behind the position, the microwave generation heat by microwave transmission antennas transmit characteristic frequency makes support 4 positions reach 40 ℃.Because the efficient of carry out microwave radiation heating is very high,, treat that support 4 restores to the original state, and can extract conduit 1, thereby finish the process of inserting so support just can restore to the original state at short notice.
Certainly can change the diameter of conduit 1 according to different demands, as common 16Fr and 14Fr.The actual transition temperature of prostate bracket made from nickel titanium 4 is specifically to set according to clinical requirement man-hour adding, and might not be as present embodiment said 40 ℃, but its transition temperature must be higher than normal body temperature.
Need to prove micro-wave screening part 2 and the point of interface of microwave radiating portion 3 and the relative position problem of support 4 more in addition, the point of interface of micro-wave screening part 2 and microwave radiating portion 4 can think that support is positioned at the radiation effects scope of microwave radiating portion preferably between the rising of support 4, initial point.
Embodiment two
With reference to Fig. 2, the front portion of described conduit 1 is provided with air bag 5, and described air bag 5 is positioned at the place ahead of described support 4, is provided with the air bag tube chamber 6 that is communicated with described air bag 5 in the tube wall of described conduit 1.In use, by conduit 1 support 4 is sent into prostate through urethras, inflate to air bag 5 in by air bag tube chamber 6 after reaching the position, the air bag 5 of tympanites can help catheter positioning, is unlikely to that generation is offset in operation process.All the other structures are identical with embodiment one with embodiment.
Claims (7)
1. device for posting prostate bracket made from nickel titanium, comprise and be used for the conduit that the socket transition temperature is higher than the support of normal body temperature, it is characterized in that: be provided with the microwave transmitting antenna that is connected with the microwave transmitter in the chamber of described conduit, the rear portion of described transmitting antenna is the micro-wave screening part, the front portion is the microwave radiating portion, and described support is positioned at the sphere of action of described microwave radiating portion.
2. device for posting prostate bracket made from nickel titanium as claimed in claim 1 is characterized in that: the front portion of described conduit is provided with air bag, and described air bag is positioned at the place ahead of described support, is provided with the inflation tube chamber that is communicated with described air bag in the tube wall of described conduit.
3. device for posting prostate bracket made from nickel titanium as claimed in claim 1 or 2 is characterized in that: the position of described microwave radiating portion is corresponding with the position of described support.
4. device for posting prostate bracket made from nickel titanium as claimed in claim 3 is characterized in that: the point of interface position of described micro-wave screening part and described microwave radiating portion and the center position of described support are corresponding.
5. device for posting prostate bracket made from nickel titanium as claimed in claim 4 is characterized in that: the diameter of described conduit is 12Fr.
6. device for posting prostate bracket made from nickel titanium as claimed in claim 4 is characterized in that: the diameter of described conduit is 14Fr.
7. device for posting prostate bracket made from nickel titanium as claimed in claim 4 is characterized in that: the diameter of described conduit is 16Fr.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100613853A CN100408122C (en) | 2005-11-02 | 2005-11-02 | Device for posting prostate bracket made from nickel titanium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100613853A CN100408122C (en) | 2005-11-02 | 2005-11-02 | Device for posting prostate bracket made from nickel titanium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1759898A true CN1759898A (en) | 2006-04-19 |
| CN100408122C CN100408122C (en) | 2008-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100613853A Expired - Fee Related CN100408122C (en) | 2005-11-02 | 2005-11-02 | Device for posting prostate bracket made from nickel titanium |
Country Status (1)
| Country | Link |
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| CN (1) | CN100408122C (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6579305B1 (en) * | 1995-12-07 | 2003-06-17 | Medtronic Ave, Inc. | Method and apparatus for delivery deployment and retrieval of a stent comprising shape-memory material |
| US6033413A (en) * | 1998-04-20 | 2000-03-07 | Endocare, Inc. | Stent delivery system |
| US5992419A (en) * | 1998-08-20 | 1999-11-30 | Mmtc, Inc. | Method employing a tissue-heating balloon catheter to produce a "biological stent" in an orifice or vessel of a patient's body |
| US6936065B2 (en) * | 1999-11-22 | 2005-08-30 | Cordis Corporation | Stent delivery system having a fixed guidewire |
| CN2401150Y (en) * | 1999-12-30 | 2000-10-18 | 毛和平 | Prostatic net shape support setting device |
| JP2001297585A (en) * | 2000-04-18 | 2001-10-26 | Mitsubishi Electric Corp | Clock generating circuit, and semiconductor memory provided with it |
| US7869957B2 (en) * | 2002-10-15 | 2011-01-11 | The Regents Of The University Of California | Methods and systems to identify operational reaction pathways |
| CN2850561Y (en) * | 2005-11-02 | 2006-12-27 | 陈鹏宏 | Apparatus for implanting Ni-Ti prostate scaffold |
-
2005
- 2005-11-02 CN CNB2005100613853A patent/CN100408122C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN100408122C (en) | 2008-08-06 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |