CN106308986B - A kind of modular catheter for implantation material transport system - Google Patents
A kind of modular catheter for implantation material transport system Download PDFInfo
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- CN106308986B CN106308986B CN201510378688.1A CN201510378688A CN106308986B CN 106308986 B CN106308986 B CN 106308986B CN 201510378688 A CN201510378688 A CN 201510378688A CN 106308986 B CN106308986 B CN 106308986B
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Abstract
The invention discloses a kind of modular catheters for implantation material transport system, and including slide-bar, the slide-bar is the hollow tubular member for being provided at least one axial slots, and the slide-bar has proximally and distally；Front-slider and rear slider, the front-slider and rear slider are arranged in the slide-bar and are connected with slide-bar slip, the front-slider is close to the distal end of the slide-bar, be both provided in the front-slider and rear slider for push pipe through mesoporous, elastomeric element is provided between the front-slider and rear slider, is passed through on the rear slider at the axial slots and is provided with the first transmission mechanism；Back handle, the back handle are rotatably arranged in the outside of the slide-bar, and be internally provided with and the first transmission mechanism on the rear slider of the back handle match the second transmission mechanism engaged.Under the control provided by the present invention for the modular catheter of implantation material transport system, the implantation materials such as stent can be accurately discharged in lesions position；It avoids the risk for concealing dirt simultaneously and improves holding comfort level, and can effectively avoid the formation of air thrombus.
Description
Technical field
Field more particularly to a kind of leading for implantation material transport system the present invention relates to Micro trauma interventional medical device
Pipe handle.
Background technology
Micro trauma intervention operation refers in the case where various image documentation equipments guide, using intervention apparatus such as conduit, stent, seal wires,
Complete the treatment to lesion in blood vessel or cavity.Implementing Micro trauma interventional treatment depends on various Micro trauma implantation materials, including branch
Frame, plugging device, artificial valve etc..Stent in Micro trauma implantation material generally includes two kinds of balloon-expandable and self-expanding,
Self-expanding stent is applied to the intravascular disease such as hemadostewnosis, hemangioma more and more since its non-deformability is strong
Interventional treatment, the particularly treatment to frequent moving part vascular lesion, such as neck, leg；Self-expanded stent has shape
Shape memory capability, at normal body temperature, it can expand to be restored to automatically is sized, and strong with certain radial support
Degree, Self-expanded stent is the sheath that transport system leading portion is packed by compressing in advance, and after reaching lesion, recession sheath carries out stent
It discharges and completes intervention operation.
The transport system for conveying Self-expanded stent into intracavitary or blood vessel in the market has two kinds of coaxial-type and fast-swap
Structure.With very strong radial support power, either coaxial-type transport system when being compressed to small diameter due to Self-expanded stent
Or fast-swap transport system has larger unlocking resistance when dropping back sheath release stent.It is and traditional coaxial
Formula and fast-swap transport system are under the guide of guiding wire, and Self-expanded stent is transported to angiosis by transport system
Stove position by fixed push rod position, pulls recession sheath and discharges stent.Rate of release is difficult to control under this delivery mode
System, is extremely susceptible to stent front jumping and causes stent position inaccurate, is i.e. the effect due to Self-expanded stent its own resilient,
During release, pop-up is a part of rapidly forward for stent leading portion.
Be born in recent years it is a kind of by way of mechanical movement come control rate of release so as to fulfill accurately discharge from
The modular catheter of expandable stent transport system.One kind as involved in Chinese patent application CN201180023910.6 is passed for prosthese
The modular catheter of system is sent, which allows to operate the delivery system with a hand, meanwhile, in body intraluminal delivery and exhibition
Accuracy is kept during spending frame.But the modular catheter in the patent has the slide-bar of thread outer surface, and outer surface is with the presence of screw thread
The problem of easily concealing dirt and uncomfortable feel；Meanwhile the modular catheter patent do not show its have can for liquid by with
The device of transport system inner air is discharged, and if the air inside transport system is not arranged before transport system enters human body
Go out, there is the risk to form air thrombus.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of modular catheter for implantation material transport system, especially
For the transport system of Self-expanded stent, modular catheter can control the accurate release of stent, and avoid the formation of air thrombus, also
It can avoid concealing the risk of dirt and promote holding comfort level.
The present invention is to solve above-mentioned technical problem and the technical solution adopted is that provide a kind of for implantation material transport system
Modular catheter, wherein, including slide-bar, the slide-bar is the hollow tubular member for being provided at least one axial slots, described
Slide-bar has proximally and distally；Front-slider and rear slider, the front-slider and rear slider be arranged in the slide-bar and with it is described
Slide-bar, which slides, to be connected, and the front-slider is both provided in the distal end of the slide-bar, the front-slider and rear slider for push
Pipe through mesoporous, be provided with elastomeric element between the front-slider and rear slider, it is narrow through the axial direction on the rear slider
The first transmission mechanism is provided at slot；Back handle, the back handle are rotatably arranged in the outside of the slide-bar, the defensive position
Be internally provided with and the first transmission mechanism on the rear slider of handle match the second transmission mechanism engaged.
Further, the inner surface of the slide-bar is provided at least row's chisel teeth, consolidates on the front-slider and rear slider
Surely shrapnel, the front-slider and rear slider is provided with by the shrapnel with the chisel teeth in the slide-bar to be connected.
Further, snap ring is provided on the outside of the slide-bar, the snap ring is rotatablely connected with the back handle, the card
Ring is axially moveable with the rotation and/or axial movement of the back handle, and the snap ring is connected with the front-slider.
Further, the front-slider is additionally provided with side opening, and the side opening is connected with the mesoporous of the front-slider；The side
Hole is communicated by the axial slots with the outside of the slide-bar.
Further, the snap ring is provided with snap ring hole, and the snap ring hole is connected with the side opening of the front-slider.
Further, woven hose is further included, one end of the woven hose passes through the snap ring hole and the side of the front-slider
Hole is connected, the other end connection infusion device of the woven hose.
Further, it is provided with check valve between the woven hose and the infusion device.
Further, first transmission mechanism is the external screw thread being arranged on rear slider；The external screw thread passes through described
Axial slots extend out to the outside of the slide-bar；Second transmission mechanism is the internal thread being meshed with the external screw thread.
Further, threaded fasteners are fixedly installed on the inside of the back handle, the threaded fasteners are with interior spiral shell
The hollow member of line, the slide-bar are engaged through the threaded fasteners and the internal thread with the external screw thread.
Further, it is axially disposed between the internal thread of the threaded fasteners to have a non-threaded band, the outer spiral shell
Line is disengaged from the non-threaded band with the internal thread.
Further, the elastomeric element is spring.
Further, front hand grip is further included, the front hand grip is mounted on the distal end of the slide-bar.
Further, the near-end of the slide-bar is provided with boss, and tail end sleeve is additionally provided with outside the near-end of the slide-bar,
The tail end sleeve is provided with press device, and the position of the press device and the boss are corresponding.
Further, safety lock is additionally provided on the modular catheter, the safety lock is pacified by the lock on back handle
At the lockhole of the slide-bar, the buckle to match with the lockhole, the buckle tight fit are provided on the safety lock
On the lockhole.
Further, being unlocked by pressing device is provided on the safety lock, the being unlocked by pressing device is used for the peace
It is taken out described in Quan Suocong on modular catheter.
Further, the smooth outer surface of the slide-bar is smooth.
The present invention comparison prior art has following advantageous effect：Provided by the present invention for leading for implantation material transport system
Pipe handle is rear sliding by the way that slide-bar is arranged to outer surface smoother structure, and ingenious setting front-slider and rear slider in back handle
Internal thread matching engagement on external screw thread and back handle internal thread fixing piece on block, during release, front-slider is in defensive position
It is progressively moved under the pulling of handle to slide-bar near-end, at the same time, front-slider pulls outer sheath to be moved to slide-bar near-end, and stent etc.
Implantation material remains stationary under the action of pipe is pushed；After the outer sheath for being coated on stent outer gradually disengages, stent expansion is opened
To be bonded with vascular wall.Stent discharges initial stage, and rotation back handle can accurately control stent rate of release, it is ensured that stent discharges
Position is accurate；After stent is released certain length, back handle is quickly pulled to slide-bar near-end, stent is rapidly complete
Full release, shortens operating time.Therefore, under the control provided by the present invention for the modular catheter of implantation material transport system,
The implantation materials such as stent can be accurately discharged in lesions position；It is smooth outside modular catheter simultaneously, avoid the risk for concealing dirt
And improve holding comfort level；Modular catheter particularly provided by the invention is provided with can be for liquid by discharging transport system
The device of inner air can discharge inner air, effectively avoid the formation of air thrombus before transport system use.
Description of the drawings
Fig. 1 is the structure diagram of stent delivery system in the embodiment of the present invention；
Fig. 2 is the structure diagram that front hand grip is connected with slide-bar in the embodiment of the present invention；
Fig. 3 is the structure diagram in the embodiment of the present invention；Wherein Fig. 3 (a) is the schematic cross section of front-slider；Fig. 3
(b) it is the overall structure diagram of front-slider；
Fig. 4 is the structure diagram of air displacement unit in the embodiment of the present invention；
Fig. 5 is the structure diagram of shrapnel in the embodiment of the present invention；
Fig. 6 is the structure diagram of threaded fasteners in the embodiment of the present invention；
Fig. 7 is handle inner attachment structure schematic diagram in the embodiment of the present invention；
Fig. 8 is the structure diagram of threaded fasteners and back handle in the embodiment of the present invention；
Fig. 9 is the attachment structure schematic diagram of snap ring and back handle in the embodiment of the present invention；
Figure 10 is modular catheter internal structure schematic diagram in the embodiment of the present invention；
Figure 11 is tail end sleeve fastening structure schematic diagram in the embodiment of the present invention；Wherein Figure 11 (a) is slide-bar end construction
Schematic diagram；Figure 11 (b) is tail end tube-in-tube structure schematic diagram；
Figure 12 is that the secure latch in another embodiment of the present invention on modular catheter installs decomposition diagram；
Figure 13 is the structure diagram of stent delivery system in another embodiment of the present invention.
In figure：
1000 modular catheter, 1010 front hand grip, 1020 snap ring
1021 snap ring hole, 1030 woven hose, 1040 check valve
1050 back handle, 1051 back handle bearing 1052 latches
1060 threaded fasteners, 1061 threaded fasteners bearing, 1062 internal thread
1063 non-threaded band, 1070 front-slider, 1071 mesoporous
1072 side opening, 1073 shrapnel bearing, 1080 rear slider
1081 rear slider external screw thread, 1090 shrapnel, 1100 spring
1110 slide-bar, 1111 slit, 1112 chisel teeth
1113 slide-bars distal end, 1114 slide-bar near-end, 1115 boss
1116 lockhole, 1120 tail end sleeve, 1121 press device
1130 safety locks 1131,1132 being unlocked by pressing devices of buckle
1140 tail end fixing piece, 1160 stress spread pipe, 2000 stent
3000 outer sheaths 6000 push 6010 boost tube of pipe
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Refer to Fig. 1 and Figure 10, the modular catheter 1000 provided in an embodiment of the present invention for implantation material transport system by
Front hand grip 1010, snap ring 1020, woven hose 1030, check valve 1040, back handle 1050, threaded fasteners 1060, front-slider
1070th, rear slider 1080, shrapnel 1090, spring 1100, slide-bar 1110 and tail end sleeve 1120 form.Slide-bar 1110 is outer surface
Hollow tubular member that is smooth and carrying an axial slots 1111, the inner surface of slide-bar 1110 have at least row's chisel teeth
1112。
Fig. 2 is referred to, slide-bar has near-end 1114 and distal end 1113, and front hand grip 1010 is mounted on slide-bar distal end 1113, uses
Modular catheter 1000 is gripped when operation.
Fig. 3, Fig. 5 and Fig. 7 are referred to, shrapnel 1090 is fixed on the both sides of front-slider 1070.Front-slider 1070, which is mounted on, to be slided
The inside of axis 1110 simultaneously passes through shrapnel 1090 and is connected with the chisel teeth 1112 in slide-bar 1110, front-slider 1070 close to slide-bar distally
1113.It is preferred that front-slider 1070 carries mesoporous 1071 and side opening 1072, mesoporous 1071 is connected with side opening 1072；Side opening 1072
It being extend out to by the axial slots 1111 of slide-bar 1110 outside slide-bar 1110, one end of mesoporous 1071 is penetrated for push pipe 6000,
Outer sheath 3000 is fixedly connected in the other end of mesoporous 1071.
Fig. 3, Fig. 4, Fig. 9 and Figure 10 are referred to, snap ring 1020 is mounted on 1110 outside of slide-bar and is connected with front-slider 1070.
Snap ring 1020 is provided with snap ring hole 1021, and snap ring hole 1021 is connected with the side opening 1072 of front-slider 1070.Woven hose 1030 has
Both ends, one end are connected through snap ring hole 1021 with the side opening 1072 of front-slider 1070, and the other end is connected with check valve 1040.
Refer to Fig. 7 and Fig. 9, the rear slider 1080 in the present embodiment is provided with as front-slider 1070 for push pipe
6000 mesoporous passed through, rear slider 1080 are mounted on 1110 inside of slide-bar and pass through shrapnel 1090 and the chisel teeth in slide-bar 1110
1112 are connected, and rear slider 1080 is provided with elastomeric element between slide-bar near-end 1114, front-slider 1070 and rear slider 1080
Such as spring 1100, rear slider 1080 carries external screw thread 1081；External screw thread 1081 is stretched out by the axial slots 1111 of slide-bar 1110
To slide-bar 1110.
Refer to Fig. 6, threaded fasteners 1060 are the hollow member with internal thread 1062, along axis between internal thread 1062
To being provided with a non-threaded band 1063.
Fig. 7 and Fig. 9 are referred to, threaded fasteners 1060 are mounted on 1110 outside of slide-bar and pass through internal thread 1062 and slided with rear
The external screw thread 1081 of block 1080 engages.
Fig. 8 and Fig. 9 are referred to, back handle 1050 is mounted on 1061 outside of threaded fasteners, threaded fasteners bearing
1061 and back handle bearing 1051 correspond to be fixedly linked, the rotational movement threaded fasteners that back handle 1050 passes through itself
1061 rotation.It is preferred that snap ring 1020 is rotatablely connected with back handle 1050, and when back handle 1050 rotates, snap ring
1020 without rotary motion.Snap ring 1020 can be in the rotation of back handle 1050 and/or vertically under the action of pulling vertically
It is mobile.
Fig. 1 and Figure 11 are referred to, slide-bar near-end 1114 is provided with tail end sleeve 1120, and tail end sleeve 1120 is provided with pressing
Device 1121；Slide-bar near-end 1114 is provided with boss 1115, and the position of boss 1115 and press device 1121 is corresponding.By pressing
Pressure device 1121 is pressed, tail end sleeve 1120 is disengaged with slide-bar near-end 1114.
Figure 12 and Figure 13 are referred to, it is safe to use for modular catheter, safety lock can be further set on modular catheter
1130, safety lock 1130 is mounted on by the lock 1052 on back handle 1050 at the lockhole 1116 of slide-bar 1110, safety lock
The buckle 1131 to match with lockhole 1052 is provided on 1130,1131 tight fits of buckle are mounted on lockhole 1052.Safety lock
Being unlocked by pressing device 1132 is provided on 1130, being unlocked by pressing device 1132 is used to take safety lock 1130 from modular catheter
Go out, before modular catheter, pressing after being unlocked by pressing device 1132 takes out safety lock 1130 from modular catheter can carry out
Subsequent operation.
Embodiment 1
Stress spread pipe 1160, front hand grip 1010, snap ring 1020, back handle 1050, screw thread are produced by injection molding
Fixing piece 1060, front-slider 1070, rear slider 1080, slide-bar 1110, tail end sleeve 1130 and check valve 1040；
Shrapnel 1090 and spring 1100 are produced by mechanical processing；
Woven hose 1030, outer sheath 3000 and push pipe 6000 are produced by extrusion molding；
By being cut by laser, being heat-treated and electrochemical polish produces Nitinol Self-expanded stent 2000；
1030 one end of woven hose is be bonded with check valve 1040 using glue, and the other end passes through the snap ring hole of snap ring 1020
1021 (Fig. 9) are be bonded with front-slider 1070 using glue afterwards；One end of outer sheath 3000 is glued using glue and front-slider 1070
It connects, the compression in advance of Self-expanded stent 2000 is packed into the other end of outer sheath；Mesoporous of the pipe 6000 mounted on front-slider will be pushed
In 1071 (Fig. 4)；
Shrapnel 1090 (Fig. 5) is fixed on to the both sides of front-slider 1070, rear slider 1080 using screw, and by spring
1100 penetrate push pipe 6000 (Fig. 7) successively with the rear slider 1080 for installing shrapnel；
Threaded fasteners 1060 and back handle 1050 are threadably secured part bearing 1061, back handle bearing 1051
It is fixed together (Fig. 8)；
Slide-bar 1110, threaded fasteners 1060, snap ring 1020, back handle 1050 are mounted on the outer of front-slider 1070 successively
Side, and shrapnel 1090 is connected with the chisel teeth 1112 of slide-bar, will be at front-slider side opening 1072 and the external screw thread of rear slider
1081 by the slit 1111 of slide-bar to slide-bar on the outside of, be wherein connected at side opening 1072 with snap ring 1020, the external screw thread of rear slider
1081 engage (Figure 10) with the internal thread 1062 of threaded fasteners；
Front hand grip 1010 is mounted on 1110 distal end (Fig. 2) of slide-bar, stress spread pipe 1160 is pacified by outer sheath 3000
In front hand grip 1010, it is bonded in using glue by pipe is pushed on tail end fixing piece 1140, tail end fixing piece 1140 is fixed on
In tail end sleeve 1120, tail end sleeve 1120 is mounted on slide-bar distal end 1114 and ensures press device 1121 and slide-bar boss
1115 include the stent delivery system (Fig. 1) of Self-expanded stent in same position (Figure 11), formation；
Before operation starts, the syringe that will be filled with physiological saline is connected with check valve 1040, by the physiology salt in syringe
Water by check valve 1040, woven hose 1030, front-slider 1070, push pipe 6000 and outer sheath 3000 between gap, stent
2000, it is finally flowed out from rack far end, the air inside transport system is completely exhausted out, avoids the formation of air thrombus；
In surgical procedure, after stent is delivered to lesions position by transport system, a hand grip front hand grip 1010 is fixed,
Another hand can rotate back handle 1050 and carry out release operation.When back handle 1050 rotates firm beginning, rear slider 1080 by
Power remains stationary between 1,090 two components of threaded fasteners 1060 and shrapnel are subject to, back handle 1050 pass through 1020 band of snap ring
Dynamic front-slider 1070 is moved to slide-bar near-end 1114, and during movement, spring 1100 is compressed；When back handle 1050 rotates
During to certain position, the external screw thread 1081 of rear slider 1080 is moved to the non-threaded band 1063 of threaded fasteners 1060 thus and spiral shell
Line fixing piece 1060 disengages, at this time the instantaneous remains stationary under the double action of shrapnel 1090 and spring 1100 of front-slider 1070,
Rear slider 1080 is instantaneously moved to initial position under the action of spring 1100 to slide-bar near-end 1114, completes a movement and follows
Ring.In the case where 1050 rotation angle of back handle is certain, the distance that front-slider 1070 is moved to slide-bar near-end 1114 is in
The screw pitch of screw thread 1082 sets different and different, specifically, the screw pitch of internal thread 1082 is bigger, front-slider 1070 is to slide-bar near-end
The distance of 1114 movements is bigger.It is above-mentioned with the rotation of back handle 1050 according to the setting of external screw thread 1081 and internal thread 1082
Motion cycle can make progressively proximally 1114 movement of back handle 1050 with repeated several times.During release, front-slider 1070 exists
Constantly moved under the pulling of back handle 1050 to slide-bar near-end 1114, at the same time, front-slider 1070 pull outer sheath 3000 to
Slide-bar near-end 1114 moves, and the remains stationary under the action of pipe 6000 is pushed of stent 2000；When being coated on the outer of stent outer
After sheath 3000 gradually disengages, 2000 automatic expansion of stent comes to be bonded with vascular wall.Stent discharges the initial stage of process, after rotation
Handle 1050 can accurately control stent rate of release, it is ensured that stent releasing position is accurate；When stent is released centainly
After length, back handle 1050 is quickly pulled to slide-bar near-end 1114, stent is rapidly completely released, and shortens operating time.
After stent discharges, the press device 1121 on pressing tail end sleeve 1120 makes tail end sleeve 1120 and slide-bar
Near-end 1114 disengages and tail end sleeve 1120 of dropping back, and push pipe 6000 is entirely enclosed in outer sheath 3000；Finally, by all devices
Human body is withdrawn from together.
Embodiment 2
Stress spread pipe 1160, front hand grip 1010, snap ring 1020, back handle 1050, screw thread are produced by injection molding
Fixing piece 1060, front-slider 1070, rear slider 1080, slide-bar 1110, tail end sleeve 1120, check valve 1040；
Shrapnel 1090, spring 1100 are produced by mechanical processing；
Woven hose 1030, outer sheath 3000 are produced by extrusion molding, push pipe 6000；
By being cut by laser, being heat-treated and electrochemical polish produces Nitinol Self-expanded stent 2000；
1030 one end of woven hose is be bonded with check valve 1040 using glue, and the other end passes through the snap ring hole of snap ring 1020
1021 (Fig. 9) are be bonded with front-slider 1070 using glue afterwards；One end of outer sheath 3000 is glued using glue and front-slider 1070
It connects, the compression in advance of Self-expanded stent 2000 is packed into the other end of outer sheath 3000；Pipe 6000 will be pushed and be mounted on front-slider
In mesoporous 1071 (Fig. 4)；
Shrapnel 1090 (Fig. 5) is fixed on using screw in the both sides of front-slider 1070, rear slider 1080, and by bullet
Spring 1100 penetrates push pipe 6000 (Fig. 7) successively with the rear slider 1080 for installing shrapnel；
Threaded fasteners 1060 and back handle 1050 are threadably secured part bearing 1061, back handle bearing 1051
It is fixed together (Fig. 8)；
Slide-bar 1110, threaded fasteners 1060, snap ring 1120, back handle 1060 are mounted on the outer of front-slider 1070 successively
Side, and shrapnel 1090 is connected with the chisel teeth 1112 of slide-bar, will be at front-slider side opening 1072 and the external screw thread of rear slider
1081 by the slit 1111 of slide-bar to slide-bar on the outside of, be wherein connected at side opening with snap ring 1120, external screw thread and threaded fasteners
Internal thread 1062 engage (Figure 10)；
Front hand grip 1010 is mounted on 1110 distal end (Fig. 2) of slide-bar, pipe 4000 will be stablized, stress expansion is bonded in by glue
It is mounted in separate tube 1160 and by stress spread pipe by outer sheath 3000 in front hand grip, tail is bonded in by pipe is pushed using glue
It holds on fixing piece 1140, tail end fixing piece is fixed in tail end sleeve, and tail end sleeve 1120 is mounted on slide-bar distal end 1114 simultaneously
Ensure press device 1121 with slide-bar boss 1115 at same position (Figure 11)；
Safety lock 1150 is mounted on by lock 1052 at the lockhole 1153 of slide-bar, 1151 tight fits of buckle, which are mounted on, to be slided
On axis lockhole (Figure 12), the stent delivery system (Figure 13) for including Self-expanded stent is formed.
Before operation starts, the syringe that will be filled with physiological saline is connected with check valve 1040, by the physiology salt in syringe
Water by check valve 1040, woven hose 1030, front-slider 1070, push pipe 6000 and outer sheath 3000 between gap, stent
2000, it is finally flowed out from rack far end, the air inside transport system is completely exhausted out, avoids the formation of air thrombus.
Being unlocked by pressing device 1132 takes out safety lock 1150 from modular catheter 1000.
In surgical procedure, after stent is delivered to lesions position by transport system, a hand grip front hand grip 1010 is fixed,
Another hand can rotate back handle 1050 and carry out release operation.When back handle 1050 rotates firm beginning, rear slider 1080 by
In the power remains stationary for being subject to 1,090 two components of threaded fasteners 1060 and shrapnel, back handle 1050 is driven by snap ring 1020
Front-slider 1070 is moved to slide-bar near-end 1114, and during movement, spring 1100 is compressed；When back handle 1050 rotates to
During certain position, the external screw thread 1081 of rear slider 1080 is moved to the non-threaded band 1063 of threaded fasteners 1060 thus and screw thread
Fixing piece 1060 disengages, at this time the instantaneous remains stationary under the double action of shrapnel 1090 and spring 1100 of front-slider 1070, after
Sliding block 1080 is instantaneously moved to initial position under the action of spring 1100 to slide-bar near-end 1114, completes a motion cycle.
During release, front-slider 1070 constantly moves under the pulling of back handle 1050 to slide-bar near-end 1114, at the same time, preceding
Sliding block 1070 pulls outer sheath 3000 to be moved to slide-bar near-end 1114, and stent 2000 keeps quiet under the action of pipe 6000 is pushed
Only；After the outer sheath 3000 for being coated on stent outer gradually disengages, 2000 automatic expansion of stent comes to be bonded with vascular wall.Branch
Frame discharges initial stage, and rotation back handle 1050 can accurately control stent rate of release, it is ensured that stent releasing position is accurate；Work as branch
After frame is released certain length, back handle 1050 is quickly pulled to slide-bar near-end 1114, stent is rapidly released completely
It puts, shortens operating time.
After stent discharges, the press device 1121 on pressing tail end sleeve 1120 makes tail end sleeve 1120 and slide-bar
Near-end 1114 disengages and tail end sleeve 1120 of dropping back, and push pipe 6000 is entirely enclosed in outer sheath 3000；Finally, by all devices
Human body is withdrawn from together.
To sum up, had the advantages that provided by the present invention for the modular catheter of stent delivery system：(1) in conduit
Under the control of handle, stent can be accurately discharged in lesions position；(2) inner air can be discharged before transport system use, had
Effect avoids the formation of air thrombus；(3) modular catheter integral outer is smooth, avoids the risk for concealing dirt and improves holding
Comfort level.
Although the present invention is disclosed as above with preferred embodiment, however, it is not to limit the invention, any this field skill
Art personnel, without departing from the spirit and scope of the present invention, when can make a little modification and it is perfect, therefore the present invention protection model
It encloses to work as and is subject to what claims were defined.
Claims (15)
1. a kind of modular catheter for implantation material transport system, which is characterized in that including
Slide-bar, the slide-bar are the hollow tubular member for being provided at least one axial slots, and the slide-bar is with near-end and far
End；
Front-slider and rear slider, the front-slider and rear slider are arranged in the slide-bar and are connected with slide-bar slip, institute
State front-slider be both provided in the distal end of the slide-bar, the front-slider and rear slider for push pipe through mesoporous, institute
It states and elastomeric element is provided between front-slider and rear slider, passed through on the rear slider and be provided with the first biography at the axial slots
Motivation structure；
Back handle, the back handle are rotatably arranged in the outside of the slide-bar, the back handle be internally provided with and institute
The first transmission mechanism on rear slider is stated to match the second transmission mechanism of engagement；
Snap ring is provided on the outside of the slide-bar, the snap ring is rotatablely connected with the back handle, and the snap ring is with the defensive position
The rotation and/or axial movement of handle and be axially moveable, and the snap ring is connected with the front-slider.
2. the modular catheter of implantation material transport system to be used for as described in claim 1, which is characterized in that the interior table of the slide-bar
Face is provided at least row's chisel teeth, and shrapnel, the front-slider and rear slider are fixedly installed on the front-slider and rear slider
It is connected by the shrapnel with the chisel teeth in the slide-bar.
3. the modular catheter of implantation material transport system to be used for as described in claim 1, which is characterized in that the front-slider is also set
Side opening is equipped with, the side opening is connected with the mesoporous of the front-slider；The side opening passes through the axial slots and the slide-bar
Outside communicates.
4. the modular catheter of implantation material transport system to be used for as claimed in claim 3, which is characterized in that the snap ring is provided with
Snap ring hole, the snap ring hole are connected with the side opening of the front-slider.
5. the modular catheter of implantation material transport system is used for as claimed in claim 4, which is characterized in that woven hose is further included,
One end of the woven hose is connected through the snap ring hole with the side opening of the front-slider, and the other end connection of the woven hose is defeated
Liquid device.
6. the modular catheter of implantation material transport system to be used for as claimed in claim 5, which is characterized in that the woven hose and institute
It states and is provided with check valve between infusion device.
7. the modular catheter of implantation material transport system to be used for as described in claim 1, which is characterized in that first driver
Structure is the external screw thread being arranged on rear slider；The external screw thread extend out to the outside of the slide-bar by the axial slots；Institute
It is the internal thread being meshed with the external screw thread to state the second transmission mechanism.
8. the modular catheter of implantation material transport system to be used for as claimed in claim 7, which is characterized in that on the inside of the back handle
Threaded fasteners are fixedly installed, the threaded fasteners are with female hollow member, and the slide-bar passes through the spiral shell
The line fixing piece and internal thread is engaged with the external screw thread.
9. the modular catheter of implantation material transport system to be used for as claimed in claim 8, which is characterized in that the threaded fasteners
Internal thread between it is axially disposed have a non-threaded band, the external screw thread takes off at the non-threaded band with the internal thread
From engagement.
10. the modular catheter of implantation material transport system to be used for as described in claim 1, which is characterized in that the elastomeric element
For spring.
11. the modular catheter of implantation material transport system is used for as described in claim 1, which is characterized in that front hand grip is further included,
The front hand grip is mounted on the distal end of the slide-bar.
12. as described in claim 1 be used for implantation material transport system modular catheter, which is characterized in that the slide-bar it is near
End is provided with boss, tail end sleeve is additionally provided with outside the near-end of the slide-bar, the tail end sleeve is provided with press device, institute
Position and the boss for stating press device are corresponding.
13. the modular catheter of implantation material transport system to be used for as described in claim 1, which is characterized in that the modular catheter
On be additionally provided with safety lock, the safety lock passes through lock on back handle at the lockhole of the slide-bar, the safety
The buckle for being provided with and matching with the lockhole is locked, the buckle tight fit is mounted on the lockhole.
14. the modular catheter of implantation material transport system to be used for as claimed in claim 13, which is characterized in that on the safety lock
Being unlocked by pressing device is provided with, the being unlocked by pressing device is used to take out the safety lock from the modular catheter.
15. the modular catheter of implantation material transport system to be used for as described in claim 1, which is characterized in that outside the slide-bar
Surface is smooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510378688.1A CN106308986B (en) | 2015-07-01 | 2015-07-01 | A kind of modular catheter for implantation material transport system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510378688.1A CN106308986B (en) | 2015-07-01 | 2015-07-01 | A kind of modular catheter for implantation material transport system |
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| CN106308986A CN106308986A (en) | 2017-01-11 |
| CN106308986B true CN106308986B (en) | 2018-06-01 |
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| CN201510378688.1A Active CN106308986B (en) | 2015-07-01 | 2015-07-01 | A kind of modular catheter for implantation material transport system |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106963529B (en) * | 2017-03-27 | 2019-07-19 | 南京微创医学科技股份有限公司 | A kind of rapid exchange stent imbedding system |
| CN108403269A (en) * | 2018-03-07 | 2018-08-17 | 普霖医疗科技(广州)有限公司 | Integrated bracket conveyer |
| CN110664523B (en) * | 2018-07-03 | 2022-06-21 | 先健科技(深圳)有限公司 | Conveyor for conveying interventional medical instruments |
| CN110786973B (en) * | 2018-08-03 | 2022-11-08 | 先健科技(深圳)有限公司 | Assembly, conveyor and system for controlling release of an implantation instrument |
| CN109199659B (en) * | 2018-09-12 | 2020-04-21 | 湖南埃普特医疗器械有限公司 | Support conveying system |
| CN111067682B (en) * | 2018-10-22 | 2022-06-07 | 东莞市先健医疗有限公司 | Assembly and system for controlling release of implantable device |
| CN112315638B (en) * | 2020-11-03 | 2023-09-01 | 湖南埃普特医疗器械有限公司 | Support conveying system |
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| CN106308986A (en) | 2017-01-11 |
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Address after: Room 101, No.1 Lane 3399, Kangxin Road, Pudong New Area, Shanghai, 201318 Patentee after: Shanghai Hongmai Medical Technology Co.,Ltd. Address before: No. 3399 Lane 1, Kangxin Highway, Pudong New District, Shanghai, 201318 Patentee before: Shanghai minimally invasive heart pulse medical technology (Group) Co.,Ltd. |