CN201996549U - Self-controlled composite fistula - Google Patents
Self-controlled composite fistula Download PDFInfo
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- CN201996549U CN201996549U CN2011200142589U CN201120014258U CN201996549U CN 201996549 U CN201996549 U CN 201996549U CN 2011200142589 U CN2011200142589 U CN 2011200142589U CN 201120014258 U CN201120014258 U CN 201120014258U CN 201996549 U CN201996549 U CN 201996549U
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- control valve
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Abstract
The utility model discloses a self-controlled composite fistula, which comprises a tube body to be inserted into a blood vessel in during operation; a blood inlet hole is formed on the outer wall of the front end of the tube body; an elastic spherical cell for controlling the opening and closing of the blood inlet hole is arranged in the tube body; a clamping mechanism for clamping a blood vessel wall is arranged on the outer wall of the tube body; the clamping mechanism comprises an anti-separation elastic spherical cell and a thrust elastic spherical cell; an anti-separation control tube communicated with the anti-separation elastic spherical cell is arranged in the tube body; the anti-separation control tube extends out of the tube body and is communicated with the anti-separation elastic valve cell; the thrust elastic spherical cell is positioned behind the anti-separation elastic spherical cell; a gap for clamping the blood vessel wall is arranged between the anti-separation elastic spherical cell and the thrust elastic spherical cell; a thrust control pipe is also arranged in the pipe body; and one end of the thrust control pipe is communicated with the thrust elastic spherical cell, and the other end of the thrust control pipe is communicated with a thrust control valve cell. After blood is collected by the fistula, the times the tester pulls the fistula out of the body of an animal easily can be reduced.
Description
Technical field
This utility model relates to a kind of automatic control composite vascular fistula, belongs to experiment apparatus technical field.
Background technology
Need the long period repeatedly to gather blood analysis at the liver of zoologizeing to the metabolism of nutrient substance with when distributing rule in hepatic portal vein and hepatic vein director time.Way in the past is, the blood taking tube of reserving single wall siphunculus form is laid in operation in animal body, and blood taking tube one end is fixed in the hepatic portal vein regulating liver-QI vein blood vessel by purse string suture, and the abdominal cavity that the other end penetrates animal extends in outside the animal body.Vascular fistula is stretched in the outer end of animal body is controlled blood taking tube by three-way valve break-make.When needs are taken a blood sample, open threeway, extract hepatic portal vein regulating liver-QI venous blood with syringe, the blood that needs in pipe a certain amount of anticoagulant of injection to retain in pipe after blood sampling finishes is annotated back vein blood vessel (chamber), be full of anticoagulant in the blood taking tube, prevent that blood from solidifying in blood taking tube, and must prevent to solidify once more by the interior anticoagulant of certain interval of time renewal blood taking tube, keep the unimpeded of blood taking tube with this, certainly will increase the labor intensity of testing crew like this.If twice more the interval of acenocoumarolum is longer, the phenomenon of blood coagulation appears in the blood taking tube possibly, can not get rid of other reasons fully and cause the blood taking tube blocking problem even regularly upgrade anticoagulant in the blood taking tube.After blood taking tube stops up, not only influence blood collection, and influence the experiment process.More acenocoumarolum not only increases the burden of testing crew excessively continually, also may be owing to the part anticoagulant enters the normal physicochemical property that blood influences blood.
Application number is that 200910309775.6 Chinese patent discloses a kind of vascular fistula, this vascular fistula comprises body, sealing is provided with partition in the body, this partition will be managed intravital cavity and will be divided into former and later two chambeies, wherein ante-chamber is gone into the blood control chamber for insertion is endovascular, described chamber wall of going into the blood control chamber is provided with into the blood hole, described outer wall sealing of going into the blood control chamber is provided with the anticreep resilient bladder, describedly go into the front side that the blood hole is positioned at the anticreep resilient bladder, retaining is coated with the holder of retaining cover on the body section of anticreep resilient bladder rear side, be provided with the flexible gap that is used for the clamping blood vessel wall between this retaining cover holder and the resilient bladder, be equipped with the anticreep control valve in the back cavity of described body, valve keyholed back plate and blood taking tube, described anticreep control valve one end is communicated with the anticreep resilient bladder, it is outer and be communicated with anticreep control valve capsule that the other end is overhung at the back cavity of body; Described valve keyholed back plate one end is positioned at the blood control chamber other end and is overhung at outside the back cavity of body, and the end that the valve keyholed back plate is positioned at into the blood control chamber is communicated with resilient bladder, and the other end of valve keyholed back plate is communicated with blood sampling on-off control valve capsule, and resilient bladder is over against going into the blood hole; One end of described blood taking tube with go into the blood control chamber and be communicated with outside the back cavity that the other end is overhung at outer tube, blood taking tube is overhung at the outer end of body and is provided with on-off control valve; All be perfused with close up control liquid in described blood sampling on-off control valve capsule and the anticreep control valve capsule.After this vascular fistula inserts the hepatic portal vein blood vessel wall, in the flexible gap of blood vessel wall between holder of retaining cover and resilient bladder, their combined effect is fixed on the hepatic portal vein blood vessel wall vascular fistula, need not to carry out purse string suture and fix, but this vascular fistula needs when installing to install under the open surgery condition, causes bigger damage to animal, vascular fistula was difficult to withdraw from after blood sampling finished, animal is carried throughout one's life, and is unhealthful, also makes troubles to test.
The utility model content
The purpose of this utility model provides a kind of can Wicresoft the installation, extracts, makes things convenient for the automatic control composite vascular fistula of testing crew use after blood sampling finishes easily.
For achieving the above object, this utility model adopts following technical scheme: a kind of automatic control composite vascular fistula, this vascular fistula comprises the body that is used for inserting blood vessel when work, the outer wall of described body front end is provided with into the blood hole, be provided with in the body and be used to control the resilient bladder that opens or closes into the blood hole, also be provided with the clamping device that is used for the clamping blood vessel wall on the outer wall of described body, described clamping device comprises the anticreep resilient bladder and is positioned at the anticreep control valve that body is communicated with the anticreep resilient bladder, the external anticreep control valve capsule that is communicated with of described anticreep control valve protruded tube, described body also seals and is provided with the thrust resilient bladder near being positioned at anticreep resilient bladder back on the outer wall of front end, be provided with the gap that is used for the clamping blood vessel wall between anticreep resilient bladder and the thrust resilient bladder, one thrust control valve is arranged in the described body, one end of thrust control valve is communicated with the thrust resilient bladder, and the other end is communicated with thrust control valve capsule.
Described thrust control valve capsule and thrust control valve junction are equipped with the thrust on-off control valve.
Be perfused with close up control liquid in the described thrust control valve capsule.
Also be provided with valve keyholed back plate and blood taking tube in the described body, the external end of described valve keyholed back plate protruded tube is communicated with the on-off control valve capsule, body one end that stretches out of described blood taking tube is communicated with the control blood sampling and injects the alternative medical three-way valve of normal saline, is equipped with seal cover on two syringe interfaces of described medical three-way valve.
End in described on-off control valve capsule, anticreep control valve capsule and the thrust control valve capsule is provided with syringe interface, and syringe interface is provided with seal cover.
Adopt the automatic control composite vascular fistula of said structure, adopt Minimally Invasive Surgery when the animal liver portal vein is installed vascular fistula, on the hepatic portal vein blood vessel wall, pricking an aperture by Wicresoft's needle forceps with pin under the monitored state of laparoscope, another long handle operating forceps of reuse is clamped the vascular fistula front end and is inserted aperture rapidly, when treating anticreep resilient bladder intravasation wall, open the anticreep on-off control valve, squeeze the anticreep control valve capsule of pressing on the body, the anticreep resilient bladder is filled to rise, close the anticreep on-off control valve, prevent that the control liquid in the anticreep control valve capsule from flowing backwards, open the thrust on-off control valve then, squeeze the thrust control valve capsule of pressing on the body, the thrust resilient bladder is filled rise, close the thrust on-off control valve then, prevent that the control liquid in the thrust control valve capsule from flowing backwards, under the combined effect of anticreep resilient bladder and thrust resilient bladder, vascular fistula is fixed on the hepatic portal vein blood vessel wall easily, reduces wound greatly, recovery time after the desmopyknosis animal.When the test blood sampling finishes, when vascular fistula does not re-use, open anticreep on-off control valve and thrust on-off control valve, the state that rises that fills of anticreep resilient bladder and thrust resilient bladder disappears, and can easily this vascular fistula be extracted in animal body.
In addition, the blood sampling on-off control valve of stretching out the connection of body one end at blood taking tube is medical three-way valve 21, medical three-way valve 21 is provided with two syringe interfaces, two syringe interfaces are respectively syringe interface that is used for injecting normal saline and the syringe interface that is used to take a blood sample, can avoid using same syringe interface antibacterial in the alternation procedure of blood sampling and injecting normal saline to enter blood taking tube, can realize the sterile working.
Description of drawings
Fig. 1 is the structural representation of vascular fistula specific embodiment of the present utility model.
The specific embodiment
The specific embodiment of automatic control composite vascular fistula of the present utility model as shown in Figure 1, vascular fistula of the present utility model comprises body 1, the front end of body 1 is the cecum 6 of arc-shaped structure, this cecum 6 is for being used to insert the blood inlet end in the blood vessel wall (hole film), the other end is to be exposed to the outer blood sampling end of animal body, sealing is provided with into blood control chamber 7 in the cecum 6, is provided with into blood hole 5 on the sidewall of going into blood control chamber 7.Be provided with blood taking tube 19 in the body 1, one end of blood taking tube 19 with go into that blood control chamber 7 is communicated with, the other end is communicated with the control blood sampling and injects the alternative medical three-way valve 21 of normal saline, described medical three-way valve 21 comprises interface and two syringe interfaces that join with syringe that join with blood taking tube 19, described two syringe interfaces are respectively syringe interface 22 that is used for injecting normal saline and the syringe interface 20 that is used to take a blood sample, medical three-way valve 21 can switch between distinct interface, controls the opening of each interface.Go into and be provided with the elasticity Plugging brusa 8 that is used to seal into blood hole 5 in the blood control chamber 7, in the present embodiment, enter in order to guarantee that blood is smooth and easy, going into blood hole 5 is arranged on the sidewall of blood control chamber 7, elasticity Plugging brusa 8 front ends are fixed on cecum 6 inwalls of blood control chamber 7, elasticity Plugging brusa 8 rear ends are communicated with valve keyholed back plate 11, valve keyholed back plate 11 other ends are communicated with on-off control valve capsule 15, on-off control valve capsule 15 ends are provided with the syringe interface 25 of with closure, be equipped with on-off control valve 16 on the valve keyholed back plate 11 between on-off control valve capsule 15 and the elasticity Plugging brusa 8, like this during 8 inflations of elasticity Plugging brusa, the normal saline that to go in the blood control chamber 7 is extruded, take the whole blood control chamber 7 of going into, sealed into blood hole 5.For preventing to deviate from after vascular fistula from inserting blood vessel, on the tube wall of body 1, be positioned at into blood hole 5 rear sides and be provided with anticreep resilient bladder 4, and be provided with anticreep control valve 2 in the body 1, one end of anticreep control valve 2 is communicated with anticreep resilient bladder 4, the other end is communicated with anticreep control valve capsule 18, anticreep control valve capsule 18 ends are provided with the syringe interface 26 of with closure, are equipped with anticreep on-off control valve 17 on the anticreep control valve 2 between anticreep resilient bladder 4 and the anticreep control valve capsule 18.In order to prevent body 1 excessive intravasation, be provided with thrust resilient bladder 3 at anticreep resilient bladder 4 rear sides, and be provided with thrust control valve 12 in the body 1, one end of thrust control valve 12 is communicated with thrust resilient bladder 3, the other end is communicated with thrust control valve capsule 14, thrust control valve capsule 14 is equipped with thrust on-off control valve 13 with thrust control valve 12 junctions, and thrust control valve capsule 14 ends are provided with the syringe interface 27 of with closure.The material of anticreep control valve 2, thrust control valve 12, valve keyholed back plate 11 and blood taking tube 19 is a silica gel, and going into blood control chamber 7 internal layers is silica gel, and handle through Teflon on the surface.Go into to have between blood control chamber 7 and the back segment body and cut off 23, cutting off on 23 has blood taking tube opening 24, and elasticity Plugging brusa 8 is connected to originate in and cuts off 23.All be perfused with close up control liquid 10 in described vent control valve capsule 15, anticreep control valve capsule 18 and the thrust control valve capsule 14, all be with seal cover on above-mentioned all syringe interfaces, seal cover can prevent intravasation fistulas such as antibacterial.
When using this vascular fistula, at first insert in the hepatic portal vein blood vessel wall of Wicresoft's opening by the front end of Minimally Invasive Surgery with this vascular fistula, and guarantee anticreep resilient bladder 4 to be positioned at blood vessel wall and thrust elastic ball 3 capsules are positioned at outside the blood vessel wall, open anticreep on-off control valve 17 and thrust on-off control valve 13 then respectively, extruding anticreep control valve capsule 18 and thrust control valve capsule 14, close up control liquid 10 in the valve capsule is entered into respectively in anticreep resilient bladder 4 and the thrust resilient bladder 3, make inflation, anticreep resilient bladder 4 concurs with thrust resilient bladder 3 and clamps blood vessel wall, prevent that this vascular fistula from deviating from the blood vessel wall or excessively in the intravasation, close anticreep on-off control valve 17 and thrust on-off control valve 13 then and prevent that the close up control liquid 10 in anticreep resilient bladder 4 and the thrust resilient bladder 3 from flowing backwards, the clamp position that keeps anticreep resilient bladder 4 and thrust resilient bladder 3, the slippage of vascular fistula can be prevented like this, the excessive intravasation of vascular fistula can be prevented again.When not taking a blood sample, extruding on-off control valve capsule 15 makes close up control liquid 10 flow into elasticity Plugging brusa 8, and with 8 inflations of elasticity Plugging brusa, blood hole 5 is gone in sealing.During blood sampling, open on-off control valve 16, close up control liquid 10 in the elasticity Plugging brusa 8 is back to on-off control valve capsule 15 voluntarily, elasticity Plugging brusa 8 shrinks, it is open to go into blood hole 5, blood enters into blood control chamber 7, the knob that rotates medical three-way valve 21 then communicates syringe interface 20 and blood taking tube 19, this moment, syringe interface 22 was obstructed with blood taking tube 19, open the seal cover at syringe interface 20 places, insert syringe interface 20 places with the blood sampling syringe, suction, blood is in blood taking tube 19 enters the blood sampling syringe; In blood collection procedure, the close up control liquid 10 in the elasticity Plugging brusa 8 refluxes not enough, and available syringe forces close up control liquid 10 to reflux in the suction of syringe interface 25 places of on-off control valve capsule 15 ends, and elasticity Plugging brusa 8 is shunk, and opens into blood hole 5; After blood sampling finishes, the knob that rotates medical three-way valve 21 is connected and syringe interface 20 and blood taking tube 19 disconnections syringe interface 22 and blood taking tube 19, extract the blood sampling syringe, cover the seal cover of syringe interface 20, open the seal cover of syringe interface 22 again, syringe with another dress physiological saline solution injects normal saline from syringe interface 22 in blood taking tube 19, the blood that retains in the blood taking tube 19 is pushed back in the blood vessel, the knob that rotates medical three-way valve 21 is at last all closed each passage, covers the seal cover of syringe interface 22.Then under the situation of syringe interface 25 sealing of on-off control valve capsule 15 ends, open on-off control valve 16, extruding on-off control valve capsule 15, make 8 inflations of elasticity Plugging brusa, the normal saline of going in the blood control chamber 7 is squeezed in the blood vessel, goes into blood hole 5 and is closed, and closes on-off control valve 16, keep the inflation state of elasticity Plugging brusa 8, blood can not enter into blood control chamber 7 and blood taking tube 19.When not taking a blood sample, there be not the problem of blood at the blood taking tube intravascular coagulation, also just need not in blood taking tube, to fill anticoagulant.When taking a blood sample next time, need earlier the normal saline that retains in the blood taking tube 19 to be extracted out with syringe earlier, and then blood drawing, other operations are identical with above-mentioned blood collection procedure.
As off-test, no longer blood sampling, can close up control liquid 10 in the capsule be extracted out from the syringe interface 26 and the thrust control valve capsule 14 terminal syringe interfaces 27 of anticreep control valve capsule 18 ends, to go into blood control chamber 7 extracts out in blood vessel, regain vascular fistula, after processing was stopped blooding at blood vessel wall pin mouth place, animal recovered normal condition with the micro-traumatic electro coagulation operating forceps.
Claims (5)
1. automatic control composite vascular fistula, this vascular fistula comprises the body that is used for inserting blood vessel when work, the outer wall of described body front end is provided with into the blood hole, be provided with in the body and be used to control the resilient bladder that opens or closes into the blood hole, also be provided with the clamping device that is used for the clamping blood vessel wall on the outer wall of described body, described clamping device comprises the anticreep resilient bladder and is positioned at the anticreep control valve that body is communicated with the anticreep resilient bladder, the external anticreep control valve capsule that is communicated with of described anticreep control valve protruded tube, it is characterized in that: described body also seals and is provided with the thrust resilient bladder near being positioned at anticreep resilient bladder back on the outer wall of front end, be provided with the gap that is used for the clamping blood vessel wall between anticreep resilient bladder and the thrust resilient bladder, one thrust control valve is arranged in the described body, one end of thrust control valve is communicated with the thrust resilient bladder, and the other end is communicated with thrust control valve capsule.
2. automatic control composite vascular fistula according to claim 1 is characterized in that: described thrust control valve capsule and thrust control valve junction are equipped with the thrust on-off control valve.
3. automatic control composite vascular fistula according to claim 1 is characterized in that: be perfused with close up control liquid in the described thrust control valve capsule.
4. according to any described automatic control composite vascular fistula of claim 1-3, it is characterized in that: also be provided with valve keyholed back plate and blood taking tube in the described body, the external end of described valve keyholed back plate protruded tube is communicated with the on-off control valve capsule, body one end that stretches out of described blood taking tube is communicated with the control blood sampling and injects the alternative medical three-way valve of normal saline, is equipped with seal cover on two syringe interfaces of described medical three-way valve.
5. automatic control composite vascular fistula according to claim 4 is characterized in that: the end in described on-off control valve capsule, anticreep control valve capsule and the thrust control valve capsule is provided with syringe interface, and syringe interface is provided with seal cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200142589U CN201996549U (en) | 2011-01-18 | 2011-01-18 | Self-controlled composite fistula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200142589U CN201996549U (en) | 2011-01-18 | 2011-01-18 | Self-controlled composite fistula |
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| Publication Number | Publication Date |
|---|---|
| CN201996549U true CN201996549U (en) | 2011-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200142589U Expired - Fee Related CN201996549U (en) | 2011-01-18 | 2011-01-18 | Self-controlled composite fistula |
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| CN (1) | CN201996549U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103876752A (en) * | 2014-04-09 | 2014-06-25 | 苏州大学 | Venous indwelling channel hemostix |
| CN104224271A (en) * | 2014-09-11 | 2014-12-24 | 中国人民解放军第三军医大学第二附属医院 | Hemostatic balloon cannula for fiberoptic bronchoscopic biopsy |
-
2011
- 2011-01-18 CN CN2011200142589U patent/CN201996549U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103876752A (en) * | 2014-04-09 | 2014-06-25 | 苏州大学 | Venous indwelling channel hemostix |
| CN104224271A (en) * | 2014-09-11 | 2014-12-24 | 中国人民解放军第三军医大学第二附属医院 | Hemostatic balloon cannula for fiberoptic bronchoscopic biopsy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20140118 |