CN105943212A - Stent delivering system and handle assembly thereof - Google Patents
Stent delivering system and handle assembly thereof Download PDFInfo
- Publication number
- CN105943212A CN105943212A CN201510977060.3A CN201510977060A CN105943212A CN 105943212 A CN105943212 A CN 105943212A CN 201510977060 A CN201510977060 A CN 201510977060A CN 105943212 A CN105943212 A CN 105943212A
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- CN
- China
- Prior art keywords
- handleset
- outer tube
- stent delivery
- handle
- delivery system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/962—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve
- A61F2/966—Instruments specially adapted for placement or removal of stents or stent-grafts having an outer sleeve with relative longitudinal movement between outer sleeve and prosthesis, e.g. using a push rod
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B17/12099—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder
- A61B17/12109—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel
- A61B17/12113—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm
- A61B17/12118—Occluding by internal devices, e.g. balloons or releasable wires characterised by the location of the occluder in a blood vessel within an aneurysm for positioning in conjunction with a stent
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/95—Instruments specially adapted for placement or removal of stents or stent-grafts
- A61F2/9517—Instruments specially adapted for placement or removal of stents or stent-grafts handle assemblies therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12022—Occluding by internal devices, e.g. balloons or releasable wires
- A61B2017/1205—Introduction devices
Abstract
The invention provides a stent delivering system and a handle assembly thereof. Through the internal structure of the handle assembly, and connection structures between the handle assembly and other parts of the stent delivering system, and the stent releasing structure and the whole support delivering system are more reliable; and the handle assembly controls an external tube, a covered cannula assembly and a back releasing assembly to successively perform releasing motions, and then a gradual releasing process of covered cannula releasing-stent primary releasing-stent complete releasing can be achieved. The stent releasing accuracy of the stent delivering system can be improved, and medical accidents can be reduced.
Description
Technical field
The present invention relates to medical operation apparatus field, particularly relate to a kind of stent delivery system and Handleset thereof.
Background technology
Overlay film frame is a transplantable device, is made up of cast transplantation surgeries sheath and self-expansion type framework.
Overlay film frame is placed in Ink vessel transfusing, can block aneurysm, rebuilds blood stream access, so that hemodynamic pressure
Vascular lesion position can not be arrived.
Overlay film frame is released in the vessel segment needing to repair and then needs the cooperation of induction system.A remarkably
Induction system, from the point of view of now needs possess accurately be easily guided into, accurate safe release and easily easily withdrawing
Performance.Because either true aneurysm, false aneurysm or dissecting aneurysm are all because blood vessel and send out
Having given birth to damage in various degree and pathological changes, the form of this life of blood vessel may be irregular, and this is accomplished by induction system
There is good importing performance；The implantation of overlay film frame is required for by intact vessel segment (tumor neck) as riveting
Nail district, often the length in the region of tumor neck is limited, therefore support needs to be implanted in essence by carrier
Level puts closure pathological changes；Withdrawing of safety is also a critically important step, it is necessary to assure graft can not be driven to move
Then position is withdrawn from external.According to requirements above, by using the technology such as low cost, overlay film sleeve pipe and rear release,
Solve an above-mentioned difficult problem to a certain extent, but have also been introduced new difficult point: owing to using low-cost technologies,
Causing outer tube to withdraw resistance and become big, release is difficult and is unfavorable for induction system and support location；Owing to have employed
Overlay film sleeve pipe and rear relieving mechanism, need increase on the Handleset of induction system corresponding operating mechanism with
Realize corresponding function.Thus, need a kind of novel Handleset of design badly, resistance during release can be reduced,
The control structure of correspondence can be provided for corresponding release operating procedure simultaneously.
Summary of the invention
The present invention provides a kind of stent delivery system and Handleset thereof, to increase its reliability of structure, carries
The release precision of high trestle, and reduce the generation of malpractice.
In order to achieve the above object, the present invention provides the Handleset of a kind of stent delivery system, after it includes
Handle, slide block, guide rod and outer tube, described back handle is threaded connection with described slide block, described slide block with
Described guide rod is slidably connected, and described guide rod is arranged in an axially parallel mode with described outer tube, described slide block and described outer tube
Axially connecting, described outer tube is used for accommodating support.
Further, the outer surface of described slide block and the inner surface of described back handle are respectively arranged with and work in coordination
External screw thread and female thread, when described back handle rotates, described slide block slides along described guide rod and described in driving
Outer tube is axially moveable.
Further, two described guide rods are arranged relative to the axisymmetrical of described slide block.
Further, described Handleset also includes outer pipe connections and anti-reversing buckle, and described outer tube connects
The two ends of part connect described outer tube and described slide block respectively, and described anti-reversing buckle is arranged at described outer tube and connects
On part, described anti-reversing buckle is along described guide rod single-way moving.
Further, described anti-reversing buckle has anti-reversing shell fragment, and described guide rod is near described anti-reversing bullet
The side of sheet is provided with unidirectional teeth groove, and the described anti-reversing shell fragment shape near described unidirectional teeth groove one end is with described
The mating shapes of unidirectional teeth groove, when described anti-reversing buckle moves towards far-end, described anti-reversing shell fragment
Touch described unidirectional teeth groove and upspring, make described outer tube move smoothly, when described anti-reversing buckle has towards closely
When holding the trend of movement, described anti-reversing shell fragment is spacing by described unidirectional teeth groove institute, stops described outer tube to closely
End is mobile.
Further, also to include that attachment structure, described anti-reversing shell fragment are arranged at described for described anti-reversing buckle
In attachment structure, described attachment structure is circulus, and it is socketed on the outside of described outer pipe connections.
Further, described circulus has along the axially arranged breach of described outer tube, and described outer tube connects
Part is provided with I-shaped boss, and the middle vertical section of described I-shaped boss is along described outer tube
Axially arranged, described circulus is placed on the outside of described outer pipe connections, and described circulus is positioned at institute
State the both sides that the part of breach both sides is respectively embedded into the middle vertical section of described I-shaped boss, make institute
State circulus to be fixed on described outer pipe connections.
Further, described circulus has " L " shape groove, the vertical section edge of described " L " shape groove
Described outer tube axially arranged, its lateral part is radially arranged along described outer tube, on described outer pipe connections
Being provided with a projection, described circulus is placed on the outside of described outer pipe connections, and described projection is first along outside described
The vertical section axially into described " L " shape groove of pipe, then embedded described by the rotation of described circulus
The lateral part of " L " shape groove, thus limit the axial shifting relative to described outer pipe connections of the described circulus
Move and the rotation on a circumferencial direction.
Further, described Handleset also includes front hand grip, and described front hand grip and described back handle are along described
The axial connection of outer tube, and realize relative movement between described slide block and described back handle by locking structure
Locking and release.
Further, described locking structure is to be positioned in described front hand grip the switch near described back handle one end,
Described switch is when described back handle moves, and the described switch of part inserts lock groove corresponding in described back handle
In, limit the rotation relative to described front hand grip of the described back handle, it is achieved described slide block and described back handle it
Between the locking of relative movement.
Further, being additionally provided with overlay film sleeve pipe between described support and described outer tube, described Handleset is also
Including the first draw ring, described first draw ring is axially connecting with described overlay film sleeve pipe by overlay film release seal wire,
Pull described first draw ring, make described overlay film sleeve pipe withdraw vertically, discharge support.Under this state,
The near-end of frame is the most in bond.
Further, the near-end of described support is fettered by rear release assembly, and described Handleset also includes second
Draw ring, described second draw ring is axially connecting with described rear release assembly by rear release seal wire, pulls described
Second draw ring, makes described rear release assembly withdraw vertically, the near-end of release support.Now, support is complete
Full release.
Further, described Handleset also includes handle tail end, control dish and end cap, described handle tail end
Being connected with the far-end of described back handle, described control dish is circular ring structure, and described control dish is socketed on described hands
The outside of handle tail end, and be rotationally connected with it, described end cap is arranged at the far-end of described handle tail end, is used for
Limit described control dish along the axial movement of described outer tube.
Further, described handle tail end is axially arranged with two near described control Pan Chu along described outer tube
Cross section is semicircular groove, and the tab lever of described first, second draw ring is divided through the hole on described end cap
Cha Ru be in said two groove, away from the described control dish center of circle in the tab lever of described first, second draw ring
Side be equipped with positive stop lug boss, it is axial along described outer tube that the internal diameter of described control dish limits described positive stop lug boss
Movement so that described tab lever cannot be extracted from described groove, the internal diameter of described control dish also sets
Have the release breach of one and described positive stop lug boss mating shapes, when described release breach rotate to an institute
When stating groove same position, described tab lever can be from the described groove of same position and described release breach
Extract.
Further, the inner side of described control dish is circumferentially additionally provided with a unidirectional gear ring of circle, described handle tail end
Outside be provided with unidirectional shell fragment, the described unidirectional shell fragment shape near described unidirectional gear ring one end is unidirectional with described
The mating shapes of teeth groove in gear ring, when described control dish rotates towards a direction, described unidirectional shell fragment touches
Described unidirectional gear ring and upspring, make described control dish smooth rotation, turn towards other direction when described control dish has
During the trend moved, described unidirectional shell fragment is spacing by described unidirectional gear ring institute, stops described control dish to rotate.
Further, described handle tail end includes left semi-handle tail end and right semi-handle tail end, described left half hands
Handle tail end is provided with two along the axially arranged left semicircle groove of described outer tube, right in described right semi-handle tail end
Answer position be provided with two along the axially arranged right semi-circle groove of described outer tube, described left semicircle groove radially sets
Having fastening pin, the correspondence position in described right semi-circle groove is radially provided with fastening pin-and-hole, by by described button
Dowel pin inserts and completes described left semi-handle tail end and the assembling of right semi-handle tail end in described fastening pin-and-hole, two
Described left semicircle groove and two described right semi-circle grooves are combined into two matched moulds holes, are respectively used to lead through overlay film release
Silk and rear release seal wire, the fastening pin being positioned in described matched moulds hole embeds described left semi-handle for preventing seal wire
In matched moulds seam between tail end and right semi-handle tail end.
Further, described first draw ring and described second draw ring the most also include draw ring handle and position limiting structure,
Described draw ring handle connects with corresponding described tab lever respectively, and described tab lever is fixing respectively is arranged in correspondence
Described position limiting structure in, the described position limiting structure corresponding with described first draw ring is for limiting with described second
The described position limiting structure that draw ring is corresponding moves to far-end.
Further, the position limiting structure in described first, second draw ring has in the projection upwards of described outer axial tube
Lap, in the position limiting structure in described second draw ring, corresponding described projection has lap to be positioned at described
In position limiting structure in one draw ring, corresponding described projection has the near-end of lap.
The embodiment of the present invention also provides for a kind of stent delivery system, and it includes above-mentioned Handleset.
Further, support is delivered to arterial disease position along guiding wire and releases by described stent delivery system
Put, described handle tail end, control dish and end cap are equipped with the path passed for described guiding wire, described
Guiding wire sequentially passes through described path.
Compared with prior art, the method have the advantages that
The stent delivery system of present invention offer and Handleset thereof, it is set by the internal structure of Handleset
Count, and Handleset designs with the attachment structure of other parts in stent delivery system so that support discharges
Structure and stent delivery system entirety are the most reliable, and by Handleset control outer tube, overlay film sleeve pipe and
Rear release assembly successively carries out release movement, it is achieved that and overlay film sleeve pipe release-support tentatively discharges-and support releases completely
The progressively release process put, improves the precision of induction system release support, and decreases sending out of malpractice
Raw.
Accompanying drawing explanation
The invention will be further described below in conjunction with the accompanying drawings:
The structural representation of the stent delivery system that Fig. 1 provides for the embodiment of the present invention；
The enlarged diagram within stent delivery system middle external tube that Fig. 2 provides for the embodiment of the present invention；
The Handleset middle external tube of the stent delivery system that Fig. 3 provides for the embodiment of the present invention and the company of back handle
Connect structural representation；
Anti-reversing buckle and outer tube in the Handleset of the stent delivery system that Fig. 4 provides for the embodiment of the present invention
The fractionation structure chart of the first connected mode；
Anti-reversing buckle and outer tube in the Handleset of the stent delivery system that Fig. 5 provides for the embodiment of the present invention
The attachment structure figure of the first connected mode；
Anti-reversing buckle and outer tube in the Handleset of the stent delivery system that Fig. 6 provides for the embodiment of the present invention
The fractionation structure chart of the second connected mode；
Anti-reversing buckle and outer tube in the Handleset of the stent delivery system that Fig. 7 provides for the embodiment of the present invention
The attachment structure figure of the second connected mode；
The distal colorectal of Handleset in the Handleset of the stent delivery system that Fig. 8 provides for the embodiment of the present invention
Structure schematic diagram；
The plane assembling of control dish in the Handleset of the stent delivery system that Fig. 9 provides for the embodiment of the present invention
Figure；
In the Handleset of the stent delivery system that Figure 10 provides for the embodiment of the present invention, the far-end of Handleset cuts open
Face schematic diagram；
The knot of left semi-handle tail end in the Handleset of the stent delivery system that Figure 11 provides for the embodiment of the present invention
Structure schematic diagram；
In the Handleset of the stent delivery system that Figure 12 provides for the embodiment of the present invention, handle tail end is assembling
Floor map after one-tenth；
The structural representation of control dish in the Handleset of the stent delivery system that Figure 13 provides for the embodiment of the present invention
Figure；
In the Handleset of the stent delivery system that Figure 14 provides for the embodiment of the present invention, the structure of handle tail end is shown
It is intended to.
In Fig. 1 is to 14,
2: support；21: mount proximal end；100: outer tube；200: discharge assembly afterwards；205: rear release is led
Silk；301: overlay film sleeve pipe；303: overlay film release seal wire；400: Handleset；401: back handle；402:
Outer pipe connections；4021: I-shaped boss；4022: projection；403: slide block；404: guide rod；4041:
Unidirectional teeth groove；405: anti-reversing buckle；4051: anti-reversing shell fragment；4052: attachment structure；4053: lack
Mouthful；4054: " L " shape groove；406: front hand grip；4061: locking structure；407: handle tail end；4071:
Semi-circular recesses；4072: left semi-handle tail end；4073: right semi-handle tail end；4074: matched moulds hole；4075:
Fasten pin；4076: matched moulds stitches；4077: unidirectional shell fragment；408: control dish；4081: release breach；4082:
Unidirectional gear ring；409: end cap；4091: fixed mechanism；410: the first draw rings；4101: tab lever；4102:
Positive stop lug boss；4103: draw ring handle；4104: position limiting structure；411: the second draw rings；4111: tab lever；
4112: positive stop lug boss；4113: draw ring handle；4114: position limiting structure.
Detailed description of the invention
The stent delivery system proposed the present invention below in conjunction with the drawings and specific embodiments and Handleset thereof are made
Further describe.According to following explanation and claims, advantages and features of the invention will be apparent from.
It should be noted that, accompanying drawing all uses the form simplified very much and all uses non-ratio accurately, only in order to convenient,
Aid in illustrating the purpose of the embodiment of the present invention lucidly.
The core concept of the present invention is, it is provided that a kind of stent delivery system and Handleset thereof, it passes through hands
The attachment structure of other parts in the internal structure design of handle assembly, and Handleset and stent delivery system
Design so that support release structure and stent delivery system entirety are the most reliable, and by Handleset control
Outer tube processed, overlay film sleeve pipe and rear release assembly successively carry out release movement, it is achieved that overlay film sleeve pipe release-support
The progressively release process that preliminary release-support discharges completely, improves the precision of induction system release support, and
Decrease the generation of malpractice.
Refer to Fig. 1 to 14, the structural representation of the stent delivery system that Fig. 1 provides for the embodiment of the present invention；
The enlarged diagram within stent delivery system middle external tube that Fig. 2 provides for the embodiment of the present invention；Fig. 3 is this
The Handleset middle external tube of the stent delivery system that inventive embodiments provides is illustrated with the attachment structure of back handle
Figure；Anti-reversing buckle and outer tube in the Handleset of the stent delivery system that Fig. 4 provides for the embodiment of the present invention
The fractionation structure chart of the first connected mode；The stent delivery system that Fig. 5 provides for the embodiment of the present invention
The attachment structure figure of the first connected mode of anti-reversing buckle and outer tube in Handleset；Fig. 6 is the present invention
Anti-reversing buckle and the second connected mode of outer tube in the Handleset of the stent delivery system that embodiment provides
Fractionation structure chart；Anti-reversing in the Handleset of the stent delivery system that Fig. 7 provides for the embodiment of the present invention
The attachment structure figure of the second connected mode of buckle and outer tube；The support that Fig. 8 provides for the embodiment of the present invention
The distal structure schematic diagram of Handleset in the Handleset of induction system；Fig. 9 provides for the embodiment of the present invention
Stent delivery system Handleset in the setting plan of control dish；Figure 10 provides for the embodiment of the present invention
Stent delivery system Handleset in the far-end generalized section of Handleset；Figure 11 is that the present invention implements
The structural representation of left semi-handle tail end in the Handleset of the stent delivery system that example provides；Figure 12 is this
Handle tail end plane signal after having assembled in the Handleset of the stent delivery system that bright embodiment provides
Figure；The structural representation of control dish in the Handleset of the stent delivery system that Figure 13 provides for the embodiment of the present invention
Figure；In the Handleset of the stent delivery system that Figure 14 provides for the embodiment of the present invention, the structure of handle tail end is shown
It is intended to.For purposes of illustration only, the near-end described in the embodiment of the present invention is the front end that stent delivery system advances,
I.e. away from one end of operator, described far-end is the one end near operator.
Please emphasis referring to figs. 1 to 3, as shown in Figures 1 to 3, the embodiment of the present invention provides a kind of support delivery system
The Handleset of system, described Handleset 400 includes back handle 401, slide block 403, guide rod 404 and outer tube
100, described back handle 401 is threaded connection with described slide block 403, described slide block 403 and described guide rod
404 are slidably connected, and described guide rod 404 is arranged in an axially parallel mode with described outer tube 100, described slide block 403 and institute
Stating outer tube 100 axially connecting, described outer tube 100 is used for accommodating support.Described stent delivery system includes
Rear release assembly 200, overlay film thimble assembly and described Handleset 400, described overlay film thimble assembly has one
Overlay film sleeve pipe 301, described overlay film sleeve pipe 301 is placed in described outer tube 100, and support 2 is placed in institute by compression
State in overlay film sleeve pipe 301 (the most described overlay film sleeve pipe 301 is between described outer tube 100 and described support 2),
Described support 2 near-end 21 is fettered by described rear release assembly 200.Described back handle 401 is by rotarily driving
Described slide block 403 and described outer tube 100 reclaim along described guide rod 404, it is achieved described overlay film sleeve pipe 301
Discharging completely, under this state, support 2 still film sleeve pipe 301 fetters；Seal wire 303 is discharged again by overlay film
Control described overlay film thimble assembly to be reclaimed by overlay film sleeve pipe 301, it is achieved the preliminary release of described support 2, this
Under state, the near-end of support 2 is still fettered by rear release assembly 200；Control finally by rear release seal wire 205
Make described rear release assembly 200 and discharge the near-end 21 of described support 2, it is achieved the release completely of described support 2.
Further, the outer surface of described slide block 403 and the inner surface of described back handle 401 are respectively arranged with
The external screw thread worked in coordination and female thread, when described back handle 401 rotates, described slide block 403 is led along described
Bar 404 slides and drives described outer tube 100 to be axially moveable, so that the overlay film set in described outer tube 100
Pipe 301 is discharged completely, and the support 2 in overlay film sleeve pipe 301 also can distending slightly.
Further, the quantity of described guide rod 404 is two, and two described guide rods 404 are relative to described cunning
The axisymmetrical of block 403 is arranged, and what the setting of two guide rods 404 made slide block 403 moves axially reliability
Higher, improve the precision of release overlay film sleeve pipe 301.
Further, described Handleset 400 also includes outer pipe connections 402 and anti-reversing buckle 405, institute
The two ends stating outer pipe connections 402 connect described outer tube 100 and described slide block 403, described anti-reversing card respectively
Button 405 is arranged on described outer pipe connections 402, and described anti-reversing buckle 405 is single along described guide rod 404
To movement.
Further, described anti-reversing buckle 405 has anti-reversing shell fragment 4051, and described guide rod 404 is close
The side of described anti-reversing shell fragment 4051 is provided with unidirectional teeth groove 4041, and described anti-reversing shell fragment 4051 is near institute
State the shape of unidirectional teeth groove 4041 one end and the mating shapes of described unidirectional teeth groove 4041, when described anti-down
Turn buckle 405 towards far-end move time, described anti-reversing shell fragment 4051 touch described unidirectional teeth groove 4041 and
Upspring, make described outer tube 100 move smoothly, when described anti-reversing buckle 405 has becoming of proximally facing movement
During gesture, described anti-reversing shell fragment 4051 is spacing by described unidirectional teeth groove 4041 institute, stops described outer tube 100
Move proximally to, thus play the malpractice preventing operator's maloperation and cause.
In the present embodiment, the quantity of described anti-reversing shell fragment 4051 is two, and it is led with described two respectively
Bar 404 contact is arranged, and collectively constitutes anti-reversing design, can with increase this anti-reversing buckle 405 structure
By property.
In the first embodiment of the present invention, as shown in Figure 4 and Figure 5, described anti-reversing buckle 405 is also
Including attachment structure 4052, described anti-reversing shell fragment 4051 is arranged in described attachment structure 4052, described
Attachment structure 4052 is circulus, and described circulus has along the axially arranged breach of described outer tube 100
4053, described outer pipe connections 402 is provided with I-shaped boss 4021, described I-shaped boss
The middle vertical section of 4021 is axially arranged along described outer tube 100, and described circulus is with described outer tube even
Fitting 402 slight interference fit, slightly breaks into two with one's hands at its breach 4053, can be placed on described outer tube and connect
The outside of part 402, the part that described circulus is positioned at described breach 4053 both sides is respectively embedded into described
The both sides of the middle vertical section of I-shaped boss 4021, described circulus is by described I-shaped
The middle vertical section of boss 4021 limits it and rotates, and upper by described I-shaped boss 4021
Lower lateral part limits it and moves axially, and makes described circulus be fixed on described outer pipe connections 402.
In the second of the present invention in embodiment, as shown in Figure 6 and Figure 7, described anti-reversing buckle 405 is also
Including attachment structure 4052, described anti-reversing shell fragment 4051 is arranged in described attachment structure 4052, described
Attachment structure 4052 is circulus, and described circulus has one " L " shape groove 4054, described " L "
The vertical section of shape groove 4054 is axially arranged along described outer tube 100, and its lateral part is along described outer tube 100
Be radially arranged, described outer pipe connections 402 is provided with a projection 4022, described circulus with described outside
Pipe connections 402 slight interference fit, and it is placed on the outside of described outer pipe connections 402, described projection 4022
First along the vertical section axially into described " L " shape groove 4054 of described outer tube 100, then by described ring
The rotation of shape structure embeds the lateral part end of described " L " shape groove 4054, thus limits described ring-type knot
Structure moving axially and the rotation on a circumferencial direction relative to described outer pipe connections 402.Owing to using
Time, anti-reversing buckle 405 not by the active force on circumferencial direction, the therefore mobile use glue on circumferencial direction
Projection 4022 and outer pipe connections 402 are fixed by water with attachment structure 4052.
Further, described Handleset 400 also includes front hand grip 406, described front hand grip 406 with described after
Handle 401 is along the axial connection of described outer tube 100, and realizes described slide block 403 by locking structure 4061
And the locking of relative movement and release between described back handle 406, to prevent the maloperation of operator.?
In the present embodiment, described locking structure 4061 is for being positioned in described front hand grip 406 near described back handle 401
The switch of one end, described switch is when described back handle 401 moves, and the described switch of part inserts described defensive position
In lock groove corresponding in handle 401, limit the rotation relative to described front hand grip 406 of the described back handle 401,
Realize locking (closing) and the release (opening) of relative movement between described slide block 403 and described back handle 406.
Further, described Handleset 400 also includes that the first draw ring 410, described first draw ring 410 pass through
Overlay film release seal wire 303 is axially connecting with described overlay film sleeve pipe 301, pulls described first draw ring 410, makes
Described overlay film sleeve pipe 301 withdraws vertically, discharges support 2.Under this state, the near-end of support 2 is still restrainted
Tie up.
Further, described Handleset 400 also includes that the second draw ring 411, described second draw ring 411 pass through
Rear release seal wire 205 is axially connecting with described rear release assembly 200, pulls described second draw ring 411, makes
After described, release assembly 200 withdraws vertically, the near-end of release support 2.Now, support 2 is released completely
Put.
Further, as shown in Figure 8 and Figure 9, described Handleset 400 also includes handle tail end 407, control
Dish 408 processed and end cap 409, described handle tail end 407 is connected with the far-end of described back handle 401, described control
Dish 408 processed is circular ring structure, and described control dish 408 is socketed on the outside of described handle tail end 407, and with
It is rotationally connected, and described end cap 409 is arranged at the far-end of described handle tail end 407, is used for limiting described control
Dish 408 processed is along the axial movement of described outer tube 100.
Further, on described handle tail end 407 near described control Pan408Chu along described outer tube 100
Being axially arranged with two cross sections is semicircular groove 4071, drawing of described first, second draw ring 410,411
Ring bar 4101,4111 inserts the semicircular groove of said two 4071 respectively through the hole on described end cap 409
In, away from described control dish 408 in the tab lever 4101,4111 of described first, second draw ring 410,411
The side in the center of circle is equipped with positive stop lug boss 4102,4112, when extracting described tab lever 4101,4111, and institute
State the internal diameter of control dish 408 and limit described positive stop lug boss 4102,4112 along the axial movement of described outer tube 100,
So that described tab lever 4101,4111 cannot be extracted from described groove 4071, described control dish 408
Internal diameter on be additionally provided with the release breach 4081 of one and described positive stop lug boss 4102,4112 mating shapes, when
When described release breach 4081 rotates extremely with described groove 4071 same position, described tab lever 4101,
4111 just can extract from the described groove 4071 of same position and described release breach 4081.
Further, the outside of described handle tail end 407 is provided with an arrow, the week of described control dish 408
Side is provided with two numerals " 1 " and " 2 ".Rotate control dish 408, when numeral " 1 " is alignd with described arrow,
Represent release breach 4081 just with the semi-circular recesses 4071 at tab lever 4101 place in the first draw ring 410
Being in same position, the tab lever 4101 of the first draw ring 410 just can be drawn from described semi-circular recesses 4071
Go out, thus pull overlay film to discharge seal wire 303, it is achieved the preliminary release of support 2；When numeral " 2 " is with described
Arrow alignment time, represent release breach 4081 just with the semicircle at tab lever 4111 place in the second draw ring 411
Connected in star 4071 is in same position, and the tab lever 4111 of the second draw ring 411 just can be from described semi-circular recesses
Pull out in 4071, thus after pulling, discharge seal wire 205, it is achieved the release completely of support 2.This counter structure
Be designed to be effectively prevented from discharge mistake, improve support 2 release precision.
Further, described first draw ring 410 and described second draw ring 411 the most also include draw ring handle 4103,
4113 and position limiting structure 4104,4114, described draw ring handle 4103,4113 respectively with corresponding described draw ring
Bar 4101,4111 connects, and fixes in the described position limiting structure 4104,4114 being arranged in correspondence respectively, with
The described position limiting structure 4104 of described first draw ring 410 correspondence is corresponding with described second draw ring 411 for limiting
Described position limiting structure 4114 move to far-end.
Further, the position limiting structure 4104,4114 in described first, second draw ring 410,411 is in institute
State outer tube 100 axially on projection have lap, in the position limiting structure 4114 in described second draw ring 411
Corresponding described projection has lap to be positioned in the position limiting structure 4104 in described first draw ring 410 correspondence
Described projection has the near-end of lap, does not pulls out when described first draw ring 410 and draws the second draw ring 411 by force
Time, the structure design of described position limiting structure 4104,4114 just makes the tab lever 4111 in the second draw ring 411
Semi-circular recesses 4071 cannot be pulled out, further enhance the safety of release process.
Further, as Figure 10 is to shown in 12, and described handle tail end 407 includes left semi-handle tail end 4072
With right semi-handle tail end 4073, described left semi-handle tail end 4072 is provided with two axial along described outer tube 100
The left semicircle groove arranged, the correspondence position in described right semi-handle tail end 4073 is provided with two along described outer tube 100
Axially arranged right semi-circle groove, is radially provided with fastening pin 4075, described right semi-circle in described left semicircle groove
Correspondence position in groove is radially provided with fastening pin-and-hole, by described fastening pin 4075 is inserted described fastening
Pin-and-hole completes described left semi-handle tail end 4072 and the assembling of right semi-handle tail end 4073, after having assembled,
Two described left semicircle grooves and two described right semi-circle grooves are combined into two matched moulds holes 4074, are respectively used to through covering
Film release seal wire 303 and rear release seal wire 205, the fastening pin 4075 being positioned in described matched moulds hole 4074 for
Prevent overlay film release seal wire 303 and rear release seal wire 205 from embedding described left semi-handle tail end 4072 and right half hands
Between handle tail end 4073 matched moulds seam 4076 in, thus avoid pull overlay film release seal wire 303 or after
During release seal wire 205, it is blocked the situation causing support 2 release failure by matched moulds seam 4076.
Further, such as Figure 13, shown in 14, the inner side of described control dish 408 is circumferentially additionally provided with a circle list
To gear ring 4082, the outside of described handle tail end 407 is provided with unidirectional shell fragment 4077, described unidirectional shell fragment 4077
Shape near described unidirectional gear ring 4082 one end and the mating shapes of teeth groove in described unidirectional gear ring 4082,
When described control dish 408 rotates towards a direction, described unidirectional shell fragment 4077 touches described unidirectional gear ring 4082
And upspring, make described control dish 408 smooth rotation, when described control dish 408 rotates towards other direction,
Described unidirectional shell fragment 4077 is spacing by described unidirectional gear ring 4082 institute, stops described control dish 408 to rotate,
This structure is designed to provide for control dish 408 operate damping accordingly, lifting operation accuracy, and prevents
The maloperation of operator.In the present embodiment, described control dish 408 only can rotate clockwise, in order to
Operator operate.
The embodiment of the present invention also provides for a kind of stent delivery system, and it includes above-mentioned Handleset 400.
Further, support 2 is delivered to arterial disease position also along guiding wire by described stent delivery system
Release, is equipped with in described handle tail end 407, control dish 408 and end cap 409 and passes for described guiding wire
Path, described guiding wire sequentially passes through these paths.
In sum, the embodiment of the present invention provide stent delivery system and Handleset by outer tube 100,
The attachment structure design of rear release assembly 200 and these parts of overlay film thimble assembly and Handleset 400, makes
Support release structure and stent delivery system entirety the most reliable, and pass through outside Handleset 400 controls
Pipe 100, overlay film thimble assembly and rear release assembly 200 successively carry out release movement, it is achieved that overlay film sleeve pipe
301 release-support 2 progressively release the processes that tentatively release-support 2 discharges completely, improve induction system and release
Put the precision of support 2, and decrease the generation of malpractice.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention
Bright spirit and scope.So, if the present invention these change and modification belong to the claims in the present invention and
Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.
Claims (20)
1. the Handleset of a stent delivery system, it is characterised in that include back handle, slide block, guide rod
With outer tube, described back handle is threaded connection with described slide block, and described slide block is slidably connected with described guide rod,
Described guide rod is arranged in an axially parallel mode with described outer tube, and described slide block is axially connecting with described outer tube, described outside
Pipe is used for accommodating support.
The Handleset of stent delivery system the most according to claim 1, it is characterised in that described cunning
The outer surface of block and the inner surface of described back handle are respectively arranged with the external screw thread and female thread worked in coordination, institute
When stating back handle rotation, described slide block slides along described guide rod and drives described outer tube to be axially moveable.
The Handleset of stent delivery system the most according to claim 1, it is characterised in that two institutes
State guide rod to arrange relative to the axisymmetrical of described slide block.
The Handleset of stent delivery system the most according to claim 1, it is characterised in that also include
Outer pipe connections and anti-reversing buckle, the two ends of described outer pipe connections connect described outer tube and described cunning respectively
Block, described anti-reversing buckle is arranged on described outer pipe connections, and described anti-reversing buckle is along described guide rod list
To movement.
The Handleset of stent delivery system the most according to claim 4, it is characterised in that described anti-
Reversing buckle has anti-reversing shell fragment, and described guide rod is provided with unidirectional teeth groove near the side of described anti-reversing shell fragment,
The described anti-reversing shell fragment shape near described unidirectional teeth groove one end and the mating shapes of described unidirectional teeth groove,
When described anti-reversing buckle moves towards far-end, described anti-reversing shell fragment touches described unidirectional teeth groove and upsprings,
Described outer tube is made to move smoothly, when described anti-reversing buckle has the trend of proximally facing movement, described anti-down
Turn shell fragment spacing by described unidirectional teeth groove institute, stop described outer tube to move proximally to.
The Handleset of stent delivery system the most according to claim 5, it is characterised in that described anti-
Reversing buckle also includes that attachment structure, described anti-reversing shell fragment are arranged in described attachment structure, described connection
Structure is circulus, and it is socketed on the outside of described outer pipe connections.
The Handleset of stent delivery system the most according to claim 6, it is characterised in that described ring
Shape structure has along the axially arranged breach of described outer tube, and it is convex that described outer pipe connections is provided with I-shaped
Platform, axially arranged along described outer tube of the middle vertical section of described I-shaped boss, described ring-type knot
Structure is placed on the outside of described outer pipe connections, described circulus is positioned at the part of described breach both sides respectively
Embed the both sides of the middle vertical section of described I-shaped boss, make described circulus be fixed on described
On outer pipe connections.
The Handleset of stent delivery system the most according to claim 6, it is characterised in that described ring
There is in shape structure " L " shape groove, axially arranged along described outer tube of the vertical section of described " L " shape groove,
Its lateral part is radially arranged along described outer tube, and described outer pipe connections is provided with a projection, described ring-type
Structure is placed on the outside of described outer pipe connections, described projection first along described outer tube axially into described " L "
The vertical section of shape groove, then the lateral part of described " L " shape groove is embedded by the rotation of described circulus,
Thus limit described circulus relative to described outer pipe connections move axially with on a circumferencial direction
Rotate.
9., according to the Handleset of the stent delivery system described in any one of claim 1 to 8, its feature exists
In, also include front hand grip, described front hand grip and described back handle being axially connected along described outer tube, and pass through
Locking structure realizes locking and the release of relative movement between described slide block and described back handle.
The Handleset of stent delivery system the most according to claim 9, it is characterised in that described
Locking structure is to be positioned in described front hand grip the switch near described back handle one end, and described switch is after described
When handle moves, the described switch of part inserts in lock groove corresponding in described back handle, limits described defensive position
Handle is relative to the rotation of described front hand grip, it is achieved the locking of relative movement between described slide block and described back handle.
The Handleset of 11. stent delivery systems according to claim 1, it is characterised in that described
Being additionally provided with overlay film sleeve pipe between support and described outer tube, described Handleset also includes the first draw ring, described
First draw ring is axially connecting with described overlay film sleeve pipe by overlay film release seal wire.
The Handleset of 12. stent delivery systems according to claim 11, it is characterised in that described
The near-end of support is fettered by rear release assembly, and described Handleset also includes the second draw ring, described second draw ring
Axially connecting with described rear release assembly by rear release seal wire.
The Handleset of 13. stent delivery systems according to claim 12, it is characterised in that also wrap
Including handle tail end, control dish and end cap, described handle tail end is connected with the far-end of described back handle, described control
Dish processed is circular ring structure, and described control dish is socketed on the outside of described handle tail end, and is rotationally connected with it,
Described end cap is arranged at the far-end of described handle tail end, axial along described outer tube for limiting described control dish
Mobile.
The Handleset of 14. stent delivery systems according to claim 13, it is characterised in that described
On handle tail end, close described control Pan Chu is semicircular recessed along two cross sections that are axially arranged with of described outer tube
Groove, the tab lever of described first, second draw ring inserts said two groove respectively through the hole on described end cap
In, in the tab lever of described first, second draw ring, the side away from the described control dish center of circle is equipped with limit convex
Platform, the internal diameter of described control dish limits described positive stop lug boss along the axial movement of described outer tube, so that described
Tab lever cannot be extracted from described groove, the internal diameter of described control dish is additionally provided with one with described positive stop lug boss
The release breach of mating shapes, when described release breach rotates extremely with a described groove same position,
Described tab lever can be extracted from the described groove of same position and described release breach.
15. according to the Handleset of the stent delivery system described in claim 13 or 14, it is characterised in that
The inner side of described control dish is circumferentially additionally provided with a unidirectional gear ring of circle, and the outside of described handle tail end is provided with unidirectional
Shell fragment, the described unidirectional shell fragment shape near described unidirectional gear ring one end and the shape of teeth groove in described unidirectional gear ring
Shape matches, when described control dish rotates towards a direction, described unidirectional shell fragment touch described unidirectional gear ring and
Upspring, make described control dish smooth rotation, when described control dish has the trend towards other direction rotation, institute
State unidirectional shell fragment spacing by described unidirectional gear ring institute, stop described control dish to rotate.
16. according to the Handleset of the stent delivery system described in claim 13 or 14, it is characterised in that
Described handle tail end includes left semi-handle tail end and right semi-handle tail end, is provided with two in described left semi-handle tail end
The individual left semicircle groove axially arranged along described outer tube, the correspondence position in described right semi-handle tail end is provided with two
Along the right semi-circle groove that described outer tube is axially arranged, described left semicircle groove is radially provided with fastening pin, described
Correspondence position in right semi-circle groove is radially provided with fastening pin-and-hole, by the described pin that fastens is inserted described button
Dowel pin hole completes described left semi-handle tail end and the assembling of right semi-handle tail end, two described left semicircle grooves and
Two described right semi-circle grooves are combined into two matched moulds holes, are respectively used to through overlay film release seal wire and rear release seal wire,
The fastening pin being positioned in described matched moulds hole embeds described left semi-handle tail end and right semi-handle tail for preventing seal wire
In matched moulds seam between end.
17. according to the Handleset of the stent delivery system described in claim 13 or 14, it is characterised in that
Described first draw ring and described second draw ring the most also include that draw ring handle and position limiting structure, described draw ring handle divide
Do not connect with corresponding described tab lever, the described tab lever fixing described position limiting structure being arranged in correspondence respectively
In, the described position limiting structure corresponding with described first draw ring for limit corresponding with described second draw ring described in
Position limiting structure moves to far-end.
The Handleset of 18. stent delivery systems according to claim 17, it is characterised in that described
Position limiting structure in first, second draw ring has a lap in the projection upwards of described outer axial tube, and described second
In position limiting structure in draw ring, corresponding described projection has the position limiting structure that lap is positioned in described first draw ring
The described projection of middle correspondence has the near-end of lap.
19. 1 kinds of stent delivery systems, it is characterised in that described stent delivery system includes wanting according to right
Seek the Handleset described in any one of 1-18.
20. stent delivery systems according to claim 19, it is characterised in that described support delivery system
Unite and along guiding wire, support be delivered to arterial disease position and discharge, described handle tail end, control dish and end
Being equipped with the path passed for described guiding wire in lid, described guiding wire sequentially passes through described path.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977060.3A CN105943212B (en) | 2015-12-23 | 2015-12-23 | Stent delivery system and its Handleset |
| ES16877800T ES2919233T3 (en) | 2015-12-23 | 2016-12-23 | Stent delivery system and its assemblies |
| EP16877800.9A EP3395301B8 (en) | 2015-12-23 | 2016-12-23 | Stent delivery system and assemblies thereof |
| PT168778009T PT3395301T (en) | 2015-12-23 | 2016-12-23 | Stent delivery system and assemblies thereof |
| PCT/CN2016/111812 WO2017107990A1 (en) | 2015-12-23 | 2016-12-23 | Stent delivery system, assemblies thereof and use method therefor |
| JP2018552108A JP6602491B2 (en) | 2015-12-23 | 2016-12-23 | Stent delivery system, assembly thereof, and method of use thereof |
| PL16877800.9T PL3395301T3 (en) | 2015-12-23 | 2016-12-23 | Tent delivery system and assemblies thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977060.3A CN105943212B (en) | 2015-12-23 | 2015-12-23 | Stent delivery system and its Handleset |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105943212A true CN105943212A (en) | 2016-09-21 |
| CN105943212B CN105943212B (en) | 2018-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510977060.3A Active CN105943212B (en) | 2015-12-23 | 2015-12-23 | Stent delivery system and its Handleset |
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| CN (1) | CN105943212B (en) |
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| AU2019203004B1 (en) * | 2019-04-30 | 2019-09-12 | Cook Medical Technologies Llc | A line pull assembly for a prosthetic delivery device |
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| WO2022001171A1 (en) * | 2020-06-30 | 2022-01-06 | 上海微创心脉医疗科技(集团)股份有限公司 | Delivery device |
| CN116549194A (en) * | 2023-07-07 | 2023-08-08 | 浙江归创医疗科技有限公司 | Conveying system support beam-contracting mechanism and abdominal aortic tectorial membrane support conveying system |
| CN116549194B (en) * | 2023-07-07 | 2024-03-01 | 浙江归创医疗科技有限公司 | Conveying system support beam-contracting mechanism and abdominal aortic tectorial membrane support conveying system |
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Address after: No. 3399 Lane 1, Kangxin Highway, Pudong New District, Shanghai, 201318 Patentee after: Shanghai Minimally Invasive Heart Vein Medical Technology Co., Ltd. Address before: No. 3399 Lane 1, Kangxin Highway, Pudong New District, Shanghai, 201318 Patentee before: Minimally invasive medical technology (Shanghai) Co., Ltd. |
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