A kind of human pathology or doctor source tract locking deviceTechnical field
The invention belongs to technical field of medical instruments, be specifically related to a kind of human pathology or doctor source tract locking device.
Background technology
In puncturing operation, can puncture blood vessel wall, operation finally needs to close certain pathologic or the tract due to medical measure generation itself.As various atrial ventricle wall defect; Endoscopic surgery and intravascular intervention operation set up by external to the passage in body.
Current existing closed mode has:
1. the plugging device of dumbbell structure, can form diameter and is greater than the plug of lumen of vessels road bore by spreading after this device gos deep into blood vessel, and then is returned by plug to drag and can block blood vessel tract.
2. deep stitching devices, the similar sewing principle of this device, complicated in mechanical structure is accurate, and whole operating process is loaded down with trivial details, needs to judge vessel position, is then sewed up by pin, knotting, trimming.
3. hemostasis gel close etc. method.
The ubiquitous problem of these measures has: structure and complicated operation, and user needs training, and the foreign body that also tract internal memory may be caused to leave more amount causes other complication.
Summary of the invention
For the problems referred to above, it is simple that the present invention aims to provide a kind of structure, and plugging effect is good, the pathology of processing ease or doctor source tract locking device.
The technical scheme that the present invention deals with problems is: a kind of human pathology or doctor source tract locking device, comprise sheath pipe and push rod, push rod front end is connected with elasticity grasp, described elasticity grasp comprise the anchorage that is connected with push rod front end and be connected with anchorage multiple there is elastic pierce arm, described pierce arm tail end is acupuncture portion;
Elasticity grasp is pressed and be placed in sheath pipe together with push rod;
After elasticity grasp departs from from sheath pipe, pierce arm resilience is opened, and forms claw type grasp.
For preventing being come off by elasticity grasp rollback after blood vessel cut, described pierce arm outer surface is provided with agnail.
Concrete, described pierce arm is provided with three, equidistantly arranges.
Preferably, described push rod is releasable push rod, is provided with kickoff mechanism between push rod and anchorage.
Described kickoff mechanism is electric kickoff mechanism or mechanical kickoff mechanism.
Described push rod and elasticity grasp are that material absorbed by the body is made.
Elasticity grasp pressure held together in advance and be placed in sheath pipe together with push rod, sheath pipe is crossed along path the tract needing to close and is inserted blood vessel; Then slowly exit sheath pipe, pierce arm resilience under natural resiliency effect of elasticity grasp is opened, and forms claw type grasp.Afterwards, by push rod rollback, pierce arm enters the surrounding tissue needing closed tract, and comes together tissue in anchorage in the process retreated.Because pierce arm has agnail, make this device deeper can only penetrate tissue, thus when organize come together in anchorage completely after complete tract close; Finally cut off push rod, if or push rod itself with kickoff mechanism, releasable also exits push rod, complete operation.
Remarkable result of the present invention is:
1. the operation of this device is identical with instrumentation in common tract, and operate simple and easy, plugging effect is good.
2. device residue in tract is only the junction point of anchoring, few foreign, causes the risk of other complication little.
3. adopt the absorbable material of specific absorption time to make according to the difference of destination organization, can not be detrimental to health.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is that inventive closure device compresses view in sheath pipe.
Fig. 2 is the state diagram after inventive closure device exits sheath pipe intravasation.
Fig. 3 is that inventive closure device pierce arm thrusts the state diagram of blood vessel cut surrounding tissue.
Fig. 4 is that the locking device pierce arm of embodiment 1 enters tissue completely, blood vessel cut closure state figure.
Fig. 5 is the locking device unfolding state figure of embodiment 1.
Fig. 6 is the locking device unfolding state figure of embodiment 2.
Fig. 7 is that after push rod freed by the locking device of embodiment 2, pierce arm enters tissue completely, the state diagram that blood vessel cut is closed.
In figure: 1-push rod, 2-elasticity grasp, 3-pierce arm, 4-agnail, 5-anchorage, 6-sheath pipe, 7-blood vessel, 8-kickoff mechanism, 31-acupuncture portion.
Detailed description of the invention
Embodiment 1
As shown in Fig. 1 ~ 5, a kind of human pathology or doctor source tract locking device, comprise sheath pipe 6 and push rod 1, push rod 1 front end is connected with elasticity grasp 2, what described elasticity grasp 2 comprised that the anchorage 5 be connected with push rod 1 front end and three that are connected with anchorage 5 equidistantly arrange has elastic pierce arm 3, and described pierce arm 3 tail end is acupuncture portion 31.Pierce arm 3 outer surface is provided with agnail 4.
Elasticity grasp 2 is held together by pressure and be placed in sheath pipe 6 together with push rod 1.After elasticity grasp 2 departs from from sheath pipe 3, pierce arm 3 resilience is opened, and forms claw type grasp.
Described push rod 1 and elasticity grasp 2 are made for material absorbed by the body.
Pressed by elasticity grasp 2 in advance and be placed in sheath pipe 6 together with push rod, sheath pipe 6 is crossed along path the tract needing to close and is inserted blood vessel 7; Then slowly exit sheath pipe 6, pierce arm 3 resilience under natural resiliency effect of elasticity grasp 2 is opened, and forms claw type grasp.Afterwards, by push rod 1 rollback, pierce arm 3 enters the surrounding tissue needing closed tract, and comes together tissue in anchorage 5 in the process retreated.Because pierce arm 3 has agnail 4, make this device deeper can only penetrate tissue, thus when organize come together in anchorage 5 completely after complete tract close; Finally cut off push rod 1, complete operation.
Embodiment 2
As shown in figs. 6-7, repeat embodiment 1, difference is: described push rod 1 is set to releasable push rod, is provided with kickoff mechanism 8 between push rod 1 and anchorage 5, and described kickoff mechanism 8 is electric kickoff mechanism or mechanical kickoff mechanism.
During operation, when organize come together in anchorage 5 completely after complete tract close; Finally free and exit push rod 1, complete operation.