CN101856279A - Blood vessel blocking device - Google Patents
Blood vessel blocking device Download PDFInfo
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- CN101856279A CN101856279A CN201010105545A CN201010105545A CN101856279A CN 101856279 A CN101856279 A CN 101856279A CN 201010105545 A CN201010105545 A CN 201010105545A CN 201010105545 A CN201010105545 A CN 201010105545A CN 101856279 A CN101856279 A CN 101856279A
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- tampon
- blood vessel
- hemostatic
- cover
- hemostatic cover
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Abstract
The invention discloses a blood vessel wound blocking device, which is mainly used for blocking femoral artery interventional wounds and can also be used for blocking other blood vessel wounds. The blood vessel blocking device comprises a catheter, a push tube, a biodegradable pull element, a hemostasis cover and a hemostasis plug, wherein the pull element, the hemostasis cover and the hemostasis plug are arranged in the catheter in advance. When in use, the blood vessel blocking device is inserted into a guide sheath, then, the hemostasis cover and the hemostasis plug are pushed into the blood vessel through the push tube, next, the pull element is pulled, at the same time, a push element is pulled, so that the hemostasis plug enters and supports the hemostasis cover to block the blood vessel wound.
Description
Technical field
The present invention is a kind of vascular wound plugging device, is mainly used in the shutoff of femoral artery wound.Stopper of the present invention comes the shutoff blood vessel wound by biodegradable hemostatic cover and tampon.
Background technology
During the interventional therapy cardiovascular disease, normal earlier lead sheath is inserted femoral artery through epidermis, insert access device such as the foley's tube pulsation frame of coming of age through this lead sheath then, when operation finishes lead sheath and withdraws from, must carry out shutoff wound.After getting involved other blood vessel, also often need the shutoff blood vessel wound.
The frequent device that uses of shutoff femoral artery wound has two kinds clinically at present: a kind of is the artery stitch device, uses degradable surgical thread or nitinol alloy wire.There is following shortcoming in this device: 1. complicated operation; 2. when sewing up, can make patient's pain; 3. sew up not tight sometimes.When using nitinol alloy wire, the tinsel non-degradable also can be left in vivo behind the wound healing.Another kind is a sponge formula tremulous pulse stopper, during use an elongated degradable sponge is fastened and send into tremulous pulse on cord, outwards spurs cord then and makes degradable sponge shutoff artery wound.Its shortcoming is: 1. complicated operation; 2. the degradation material of Shi Yonging is more, and is bigger to the pressure of wound, more easily makes the wound inflammation.
In patent application " vascular wound plugging device " (application number 200910067448.4), described and the umbrella more than 2 and 2 is supported the umbrella that will stop blooding when drawing in wound simultaneously pushed the also method of shutoff wound.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of easy and simple to handle, vascular wound plugging device rapidly that stops blooding, and this stopper is little to blood vessel wound compressing power and wound, and all degradeds gradually, does not stay residue in the patient body.
Vascular wound plugging device of the present invention comprises: conduit, ejector sleeve, biodegradable draw piece, hemostatic cover, and tampon.Draw piece is connected on the tampon, and passes hemostatic cover and ejector sleeve successively, is exposed at the stopper outside then.Ejector sleeve, hemostatic cover and tampon are put in the conduit in advance together with draw piece.During use conduit is inserted the lead sheath in blood vessel together with the part of the inside, with ejector sleeve hemostatic cover and tampon are pushed blood vessel, then draw piece simultaneously push piece tampon is entered and struts hemostatic cover, then extract conduit and ejector sleeve out, then to returning draw piece and lead sheath simultaneously, clog wound together up to tampon and hemostatic cover, extract lead sheath subsequently out.Behind staunch blood, cut off draw piece.
Draw piece can be degradable operation rope.
The effect of hemostatic cover be filled between tampon and the wound the gap with the hemostasis.This is because tampon and hemostatic cover all need to push in the blood vessel via lead sheath, so both are all little than lead sheath internal diameter and blood vessel wound diameter.After both push blood vessel respectively successively, tampon drawn in the hemostatic cover will support big hemostatic cover.If the hemostatic cover external diameter after support at this moment is big just can be sealed wound greater than the blood vessel wound diameter.So hemostatic cover thick more plugging effect under the prerequisite that can easily fill in lead sheath is good more.Hemostatic cover also should be able to easily be strutted by tampon simultaneously.
For these three requirements satisfying hemostatic cover (promptly easily fill in lead sheath, enough thickness arranged, and easily strutted) by tampon, with degradable sponge or net, or cloth to do hemostatic cover relatively good.Because these several structures all have certain scalability, easily be pressed into lead sheath, easily in blood vessel, open, strut and simultaneously can also keep certain thickness.Space in these several structures can be drawn in the tampon at hemostatic cover center and the wound wall of hemostatic cover outside and be pushed and closure, thereby can be stopped blooding.Also can on hemostatic cover, coat or put degradable hemostatic layer to guarantee hemostasis.
Also can make hemostatic cover with the elasticity degradation material of densification.The elasticity hemostatic cover can strut with tampon, also can compress the conduit of packing in advance, opens voluntarily after being pushed blood vessel by ejector sleeve.When the elasticity of hemostatic cover is fine just can open voluntarily without tampon the time, the effect of tampon mainly is supporting role, to improve pressure and the sealing of hemostatic cover to blood vessel wound.
In blood vessel, hemostatic cover generally should be hollow, so that insert tampon, the outside cross section is generally round, so that push and seal blood vessel wound.In the axial direction, the front end of hemostatic cover is littler than the rear end, is easy to insert blood vessel wound.The rear end slightly then helps the shutoff blood vessel wound.
Plugging effect was good when equally, the cross section of tampon was circular.An end then is easy to insert hemostatic cover and blood vessel wound than the other end is little in the axial direction, and a thick end then is used to strut and support hemostatic cover and comes the shutoff blood vessel wound.
Tampon then helps compression and advances lead sheath and stifled in intravasation posttension Kaifeng when leaning on the elastic telescopic of self.Can accomplish this point with elastic degradation material pipe or sponge.
Also can use two or more tampons, each is all successively put into the conduit bunchiness in order and arranges, thereby can be pushed blood vessel by ejector sleeve one by one, draw in hemostatic cover and blood vessel wound together side by side with draw piece then, reach radially shutoff pressure to increase the shutoff area.
For each tampon can be drawn in simultaneously, degradable rope that can length is identical links up each tampon and draw piece front end.Also can earlier draw piece and a tampon be linked up, other tampon then is enclosed within on the draw piece by degradable with holes (as the ring made from operation rope or other method).So simultaneously, can stop earlier when being moved to hemostatic cover with the tampon of with holes connection and drawn in hemostatic cover side by side when the tampon arrival that directly links to each other with draw piece by draw piece at ejector sleeve.
Degradable hemostatic cover among the present invention, hemostatic layer, tampon can be chosen from following material:
A. polyester (Polyester is as PLA, PLLA, PLGA, PGA, PDLA etc.); B. polyesteramide (Polyesteramide); C. polyester acid anhydride (Polyanhydride); D. polycarbonate (PC); E. collagen protein (Collagen).
Description of drawings
Fig. 1 is the structural representation of blood vessel blocking device of the present invention.
Fig. 2 is blood vessel blocking device of the present invention inserts blood vessel by lead sheath a sketch map.
Fig. 3 is the sketch map of stopper shutoff blood vessel wound of the present invention.
Fig. 4 is several shapes of hemostatic cover.
Fig. 5～6 show the situation with a plurality of tampon shutoff.
Specifying of accompanying drawing
Fig. 1 shows the structure of stopper of the present invention.Stopper is made up of conduit 1, ejector sleeve 2, biodegradable draw piece 3, hemostatic cover 6 and tampon 4.Draw piece 3 can be softish biodegradable operation rope.The center that draw piece 3 passes hemostatic cover 6 links to each other with the tampon 4 of back then.
Fig. 2 shows hemostatic cover 6 and tampon 4 are advanced blood vessels through lead sheaths 11 and blood vessel wound 12 by ejector sleeve 2 situation.
Fig. 3 shows tampon 4 and is drawn in the hemostatic cover 6 by draw piece 3 and drawn in together then and the situation of shutoff blood vessel wound 12.Fine and close hemostatic layer 61 can increase haemostatic effect.Can on hemostatic cover 6, coat hemostatic layer 61, also can carry out hemostatic layer 61 earlier and be enclosed within then on the hemostatic cover 6.
Fig. 4 shows the hemostatic cover 6 of several shapes, comprises tubulose, funnel-form, and the auger hopper shape, ring-type, and discoid.The discoid umbrella that need be folded into is in advance wherein filled in the conduit 1.Hemostatic cover 6 is pushed into behind the blood vessel by self elasticity and tampon 4 and struts in use.
Fig. 5 is that 3 tampons 4 and hemostatic cover 6 are pushed into the situation in the blood vessel.Wherein first tampon 4 is directly connected on the draw piece 3.Intermediary 2 tampons 4 are then linked degradable with holes 5 earlier and are enclosed within then on the draw piece 3.Can be tied to form by degradable operation rope for holes 5, also can be by the degradation material injection mo(u)lding.When draw piece 3 pushes away ejector sleeve 2 simultaneously, can run into hemostatic cover 6 earlier with holes 5 tampon that is connected 4 and also stop earlier, when arriving, the tampons 4 that directly link to each other with draw piece 3 drawn in hemostatic cover 6 side by side.
Fig. 6 is that 3 tampons 4 and hemostatic cover 6 are drawn in the situation in the blood vessel wound 12, and lead sheath is drawn out of.
Claims (13)
1. a vascular wound plugging device comprises: conduit, ejector sleeve, biodegradable draw piece, hemostatic cover, and tampon; Described draw piece, hemostatic cover and tampon are pre-installed in the conduit, insert lead sheath during use, with ejector sleeve hemostatic cover and tampon are pushed blood vessel, thus then draw piece simultaneously push piece tampon is entered and struts hemostatic cover shutoff blood vessel wound.
2. the hemostatic cover described in the claim 1 is discoid, funnel-form, auger hopper shape, tubulose or ring-type.
3. the hemostatic cover described in the claim 1 is biodegradable net, cloth or sponge.
4. on the hemostatic cover described in the claim 1 biodegradable hemostatic layer is arranged.
5. the hemostatic cover described in the claim 1 is to be compressed when packing conduit into by open of self elasticity, opens after being pushed blood vessel by ejector sleeve.
6. the external diameter of the hemostatic cover described in the claim 1 after tampon enters is greater than the diameter of blood vessel wound.
7. one end of tampon described in the claim 1 is thinner than the other end, and a thin end is linked on the described draw piece and drawn in blood vessel wound earlier.
8. the tampon described in the claim 1 is to be compressed when packing conduit into by open of self elasticity, opens after being pushed blood vessel by ejector sleeve.
9. the tampon described in the claim 1 is a sponge member.
10. the tampon of stopper described in the claim 1 is two or more, and each is all successively put into the conduit bunchiness in order and arranges, thereby can insert tremulous pulse through conduit one by one, draws in and strut hemostatic cover together side by side with draw piece then.
11. the biodegradable material described in the claim 1 can be selected from following material: a. polyester (Polyester is as PLA, PLLA, PLGA, PGA, PDLA etc.); B. polyesteramide (Polyesteramide); C. polyester acid anhydride (Polyanhydride); D. polycarbonate (PC); E. collagen protein (Collagen).
12. the draw piece described in the claim 1 is biodegradable operation rope.
13. a vascular wound plugging device comprises: conduit, ejector sleeve, biodegradable draw piece, hemostatic cover, and tampon; Described draw piece, hemostatic cover and tampon are pre-installed in the conduit, insert lead sheath during use, with ejector sleeve hemostatic cover and tampon are pushed blood vessel, thus then draw piece simultaneously push piece tampon is entered and supports hemostatic cover shutoff blood vessel wound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010105545A CN101856279A (en) | 2010-02-04 | 2010-02-04 | Blood vessel blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010105545A CN101856279A (en) | 2010-02-04 | 2010-02-04 | Blood vessel blocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101856279A true CN101856279A (en) | 2010-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010105545A Pending CN101856279A (en) | 2010-02-04 | 2010-02-04 | Blood vessel blocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101856279A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104586455A (en) * | 2014-12-31 | 2015-05-06 | 上海形状记忆合金材料有限公司 | Intervention-type blood vessel hemostasis device |
| CN105496480A (en) * | 2016-01-21 | 2016-04-20 | 深圳麦普奇医疗科技有限公司 | Blood vessel puncture site closer and operation method thereof |
| CN106725695A (en) * | 2017-02-04 | 2017-05-31 | 成都鼎信致远科技有限公司 | A kind of blood vessel plugging device |
-
2010
- 2010-02-04 CN CN201010105545A patent/CN101856279A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104586455A (en) * | 2014-12-31 | 2015-05-06 | 上海形状记忆合金材料有限公司 | Intervention-type blood vessel hemostasis device |
| CN105496480A (en) * | 2016-01-21 | 2016-04-20 | 深圳麦普奇医疗科技有限公司 | Blood vessel puncture site closer and operation method thereof |
| CN106725695A (en) * | 2017-02-04 | 2017-05-31 | 成都鼎信致远科技有限公司 | A kind of blood vessel plugging device |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20101013 |