CN114948089A - Separable bolt taking support device - Google Patents
Separable bolt taking support device Download PDFInfo
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- CN114948089A CN114948089A CN202210575542.6A CN202210575542A CN114948089A CN 114948089 A CN114948089 A CN 114948089A CN 202210575542 A CN202210575542 A CN 202210575542A CN 114948089 A CN114948089 A CN 114948089A
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- Prior art keywords
- support
- wire
- adjusting
- embolectomy
- silk
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- 238000005452 bending Methods 0.000 claims abstract description 41
- 208000007536 Thrombosis Diseases 0.000 claims abstract description 38
- 238000013156 embolectomy Methods 0.000 claims description 50
- 238000013151 thrombectomy Methods 0.000 claims description 28
- 230000005540 biological transmission Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 8
- 238000012546 transfer Methods 0.000 claims description 8
- WAIPAZQMEIHHTJ-UHFFFAOYSA-N [Cr].[Co] Chemical class [Cr].[Co] WAIPAZQMEIHHTJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 229910000566 Platinum-iridium alloy Inorganic materials 0.000 claims description 2
- 229910001080 W alloy Inorganic materials 0.000 claims description 2
- 238000013461 design Methods 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- ZONODCCBXBRQEZ-UHFFFAOYSA-N platinum tungsten Chemical compound [W].[Pt] ZONODCCBXBRQEZ-UHFFFAOYSA-N 0.000 claims description 2
- HWLDNSXPUQTBOD-UHFFFAOYSA-N platinum-iridium alloy Chemical class [Ir].[Pt] HWLDNSXPUQTBOD-UHFFFAOYSA-N 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 229910052715 tantalum Inorganic materials 0.000 claims description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 2
- 230000008602 contraction Effects 0.000 abstract description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000003902 lesion Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 208000006011 Stroke Diseases 0.000 description 1
- 208000026106 cerebrovascular disease Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004064 dysfunction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B17/221—Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22001—Angioplasty, e.g. PCTA
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22038—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with a guide wire
Abstract
The invention relates to the field of medical instruments, and provides a separable thrombus removal support device which comprises a handheld part, a thrombus removal support and a hollow part, wherein the left side of the hollow part is connected with the handheld part, the right side of the hollow part is connected with the thrombus removal support, and the handheld part and the thrombus removal support can be detached from the hollow part; the handheld part is provided with a knob to enable the bolt taking support to be retracted, meanwhile, the handheld part is provided with a pushing block, the pushing block is provided with a gear, an adjusting wire of the bolt taking support is adjusted through adjusting the gear, and the adjusting wire pulls the bolt taking support to deform so as to adjust the bending angle and the bending outer diameter of the bolt taking support; the sectional expansion and contraction of the bolt taking support can be realized through gear adjustment.
Description
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to a separable thrombus removal support device.
Background
In recent years, the prevalence of cerebrovascular diseases has increased year by year, and it has been reported that 80% of stroke patients suffer from various degrees of dysfunction, and 43.7% of them cannot take care of life. The thrombus removal device in the prior art has the advantages that the thrombus removal support cannot be withdrawn from a microcatheter after being delivered to a lesion part due to the integration of the handheld part and the delivery system, and the inner cavity of the suction catheter is occupied by the microcatheter, so that the thrombus removal effect can be influenced to a certain extent; meanwhile, thrombus is easy to remain because the thrombus block is often in an irregular structure and the thrombus removal stent is in a regular structure, so that the thrombus removal stent capable of being expanded by directional pressure relief is needed.
Chinese patents CN201420743450, CN201910672524, and CN201810925455 disclose adjustable thrombectomy devices, and the adjustment mechanism of such devices only consists of a single telescopic component, and still has the technical problem that the external diameter of the thrombectomy support cannot be effectively adjusted in multiple sections, so that the devices cannot adapt to different clinical scenes.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide a detachable thrombectomy support device.
A separable thrombus removal support device comprises a handheld part, a thrombus removal support and a hollow part, wherein the handheld part and the thrombus removal support are connected through the hollow part; be equipped with withdrawal mechanism and adjustment mechanism on the handheld portion, withdrawal mechanism links to each other with the one end of withdrawal silk, the other end of withdrawal silk with the support of tieing of getting link to each other, adjustment mechanism links to each other with the one end of adjusting the silk, the other end of adjusting the silk with it links to each other to get the support of tieing, withdrawal silk and adjusting the silk all pass the cavity spare when withdrawal mechanism withdraws and ties the device, adjustment mechanism with withdrawal mechanism synchronous motion to the appearance of guaranteeing to get the support of tieing is unchangeable, withdrawal mechanism is used for withdrawing and ties the support, adjustment mechanism is used for adjusting the appearance of getting the support of tieing.
The retracting mechanism includes:
the rear locking part comprises a knob, an adjusting screw rod and a front round shaft;
the rear lock is connected with a withdrawing wire, the rear lock is arranged on one side of the adjusting screw rod and is fixedly connected with the adjusting screw rod, the knob is sleeved on the adjusting screw rod and is in threaded connection with the adjusting screw rod, and the knob is rotationally connected with the handheld part; the adjusting screw rod is internally provided with a first long-strip-shaped through hole for the withdrawing wire to pass through, the front circular shaft is internally provided with a second long-strip-shaped through hole for the withdrawing wire and the adjusting wire to pass through, and the first long-strip-shaped through hole and the second long-strip-shaped through hole form a through cavity.
The adjusting screw rod comprises a transmission rod, a thread rotating groove is formed in the outer surface of the adjusting screw rod, one end of the transmission rod is connected with the knob, and the other end of the transmission rod is in spiral fit with the thread rotating groove.
The adjustment mechanism includes:
a pushing module and a pushing block;
the improved adjustable lifting mechanism is characterized in that a pushing clamping groove is formed in the pushing module, an intercepting block is arranged at the front end of the pushing block, the lower end of the pushing block is connected with the pushing module in a sliding mode, the left side of the pushing module is fixedly connected with the adjusting screw rod, a cavity is formed in the pushing block, the right side of the pushing module is fixedly connected with the front circular shaft, and the intercepting block is connected with the clamping groove in a clamping mode.
The hand-held portion includes a housing and a front lock; a long-strip-shaped notch is formed above the shell; the strip-shaped cut is connected with the pushing block in a sliding way
The front lock connects the housing and the hollow member;
the through cavity penetrates through the knob, the adjusting screw rod, the pushing module and the front round shaft, extends to the rear lock and is communicated with the hollow part;
the shell accommodates the adjusting screw rod, the pushing module and the front circular shaft.
The cavity can be an arc-shaped cavity, the lower end of the arc-shaped cavity is communicated with the front circular shaft, and the upper end of the arc-shaped cavity extends to the outer side of the pushing block.
The thrombus removal support comprises a braided double-spiral-structure support, a support near-end mark and a support far-end mark, the right side of the hollow part is connected with the support near-end mark, and the braided double-spiral-structure support is formed between the support near-end mark and the support far-end mark.
The woven double-spiral structure support comprises a shaping wire, a developing wire, a withdrawing wire and an adjusting wire;
the withdrawing wire penetrates through the hollow part and the front lock, extends from the through cavity to the rear lock, and is hinged with the rear lock;
the adjusting wire is connected with the bracket near-end mark and the bracket far-end mark, extends to the hollow piece from the bracket near-end mark, extends to the front round shaft and the cavity in the pushing block from the front lock, and is exposed from the cavity.
The woven double-spiral structure further comprises a bending adjusting ring, the adjusting wire is a bending adjusting wire, the withdrawing wire and the bending adjusting wire penetrate through the bending adjusting ring and are connected with the support far-end mark, and the bending adjusting wire is used for adjusting the bending degree of the support.
The number of the bending adjusting rings is more than 1.
Woven double helix structure is still including transferring the return bend, adjust the silk for No. two accent curved silks, the withdrawal silk with No. two accent curved silks run through transfer the return bend, and with support distal end sign link to each other, one side or both sides of transferring the return bend are equipped with cutting structures such as rectangle, triangle-shaped, arc, the material of transferring the return bend is one of stainless steel, nickel titanium alloy, the high elastic state material of cobalt chromium alloy.
The adjusting wire is a first stretching wire, the right end of the first stretching wire is connected with the far-end mark of the thrombus removal support, and the first stretching wire is used for adjusting the outer diameter of the support.
The adjusting wire is the tensile silk of second, weave type double helix structure still includes tensile pipe and second withdrawal silk, and the position that needs the adjustment on getting the bolt support is drawn back silk right side end-to-end connection to the second, and the position that needs the adjustment is the design silk of weaving type double helix structure support, development silk intersection position, and the second withdrawal silk is through lining up preceding locking, preceding round axle, accommodate the lead screw, the knob of cavity passing in proper order, finally stretches out in the left side of knob, with the second withdrawal silk fixed back locking on, the second withdrawal silk is used for the location to get the length scope that the bolt support needs the adjustment external diameter.
The second stretching wire penetrates through the stretching pipe, the right end of the second stretching wire is connected with the far-end mark of the embolectomy support, the second stretching wire sequentially penetrates through the hollow part, the front locking part, the front circular shaft and the arc-shaped cavity of the pushing block from the near-end mark on the left side of the embolectomy support, the second stretching wire is exposed from the upper end part of the pushing block and used for adjusting the outer diameter of the position of the embolectomy support, which needs to be adjusted, meanwhile, the fact that the non-stretching area of the embolectomy support is not deformed is guaranteed, and the outer diameter of the embolectomy support is adjusted in a segmented mode.
The tensile pipe has the multistage, and looks interval setting, the tensile silk of second withdrawal silk and second has many.
The withdrawing wire, the second withdrawing wire and the adjusting wire penetrate through the bracket near-end mark and the bracket far-end mark, and the bracket near-end mark and the bracket far-end mark are made of any developing material of platinum iridium alloy, platinum tungsten alloy, tantalum and gold.
The invention provides a separable embolectomy support device, which has the following beneficial effects:
1) the front lock is arranged at the right end of the handheld part and fixes the bolt taking support through the hollow part, so that the handheld part and the bolt taking support can be detachably assembled;
2) the withdrawing wire of the thrombectomy support is connected to the knob of the handheld part through the through cavity and locked afterwards, so that the displacement action of the thrombectomy support is realized, the bending adjusting wire or the stretching wire of the thrombectomy support is connected with the pushing block of the handheld part, the gear of the pushing block is adjusted, the bending adjusting wire or the stretching wire generates stretching action, the weaving type double-helix structure of the thrombectomy support can be stretched, and the outer diameter of the thrombectomy support can be changed;
3) the deflection angle of the braided double-spiral structure can be adjusted by adding a bending wire to the braided double-spiral structure of the thrombus removal support; the multi-section stretching pipe is added to the woven double-spiral structure of the embolectomy support, so that the expansion and contraction positions of the woven double-spiral structure can be adjusted in sections.
Drawings
FIG. 1 is a cross-sectional view of a hand grip and its internal structure;
FIG. 2 is a top view of the hand grip;
FIG. 3 is a front view of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3;
FIG. 5 is a schematic diagram of the first embodiment;
FIG. 6 is a schematic view of a bolt-removing holder in use according to one embodiment;
FIG. 7 is another view of the first embodiment of a thrombectomy stent in use;
FIG. 8 is a schematic view of the second embodiment;
FIG. 9 is a schematic view of a third embodiment;
fig. 10 is a partially enlarged view of fig. 9.
An icon: the device comprises a shell 1, a front lock 2, a front circular shaft 3, a push clamping groove 4, a push block 5, an arc-shaped cavity 51, a through cavity 52, an interception block 6, an adjusting screw rod 7, a transmission rod 71, a thread rotating groove 72, a knob 8, a rear lock 9, a bolt taking support 10, an adjusting wire 11, a first bending adjusting wire 1001, a withdrawing wire 1002, a bending adjusting ring 1003, a setting wire 1004, a developing wire 1005, a first stretching wire 1201, a bending adjusting pipe 1301, a second bending adjusting wire 1302, a hollow part 14, a non-stretching area 15, a stretching pipe 1601, a second stretching wire 1602 and a second withdrawing wire 1603.
Detailed Description
The following examples are given to illustrate the present invention in detail, and the following examples are given to illustrate the detailed embodiments and specific procedures of the present invention, but the scope of the present invention is not limited to the following examples.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concept. Therefore, the technical solutions that can be obtained by a person skilled in the art through logical analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection determined by the claims.
The invention provides a separable embolectomy support device, wherein a handheld part can be detached from a embolectomy support, a withdrawing wire and an adjusting wire of the embolectomy support device are arranged at different positions on the handheld part, the bending angle and the expansion and contraction outer diameter of the embolectomy support can be freely adjusted, and the outer diameter of the embolectomy support can be adjusted in sections by arranging stretching pipes in sections.
Example one
The bending angle adjustment of the bolt taking bracket can be realized in the embodiment:
fig. 1 and 2 are a cross-sectional view and a top view of a hand-held portion of the present invention.
A separable embolectomy support device comprises a handheld part, an embolectomy support 10 and a hollow part 14, wherein the handheld part and the embolectomy support 10 are connected through the hollow part 14, and both the handheld part and the embolectomy support 10 are detachably connected with the hollow part 14; the handheld portion is provided with a withdrawing mechanism and an adjusting mechanism, the withdrawing mechanism is connected with one end of a withdrawing wire 1002, the other end of the withdrawing wire 1002 is connected with the bolt taking support 10, the adjusting mechanism is connected with one end of an adjusting wire 11, the other end of the adjusting wire 11 is connected with the bolt taking support 10, the withdrawing wire 1002 and the adjusting wire 11 penetrate through the hollow part 14, when the withdrawing mechanism withdraws the bolt taking device 10, the adjusting mechanism synchronously moves with the withdrawing mechanism to ensure that the shape of the bolt taking support 10 is unchanged, the withdrawing mechanism is used for withdrawing the bolt taking support 10, and the adjusting mechanism is used for adjusting the shape of the bolt taking support 10.
The retraction mechanism comprises:
a rear lock 9, a knob 8, an adjusting screw rod 7 and a front round shaft 3;
the rear lock 9 is connected with a withdrawing wire 1002, the rear lock 9 is arranged on one side of the adjusting screw rod 7 and is fixedly connected with the adjusting screw rod 7, the knob 8 is sleeved on the adjusting screw rod 7 and is in threaded connection with the adjusting screw rod 7, and the knob 8 is rotatably connected with the handheld part; the adjusting screw rod 7 is internally provided with a first long-strip-shaped through hole for the withdrawing wire 1002 to pass through, the front round shaft 3 is internally provided with a second long-strip-shaped through hole for the withdrawing wire 1002 and the adjusting wire 11 to pass through, and the first long-strip-shaped through hole and the second long-strip-shaped through hole form a through cavity 52.
The adjusting screw rod 7 comprises a transmission rod 71, a thread rotating groove 72 is formed in the outer surface of the adjusting screw rod, one end of the transmission rod 71 is connected with the knob 8, and the other end of the transmission rod 71 is in threaded fit with the thread rotating groove 72. The other end of the transfer rod 71 is provided with a chuck engaged with the screw rotation groove 72.
The adjustment mechanism includes:
a pushing module and a pushing block 5;
be equipped with on the promotion module and promote draw-in groove 4, the front end that promotes piece 5 is equipped with the interception piece 6, the lower extreme that promotes piece 5 with promote module sliding connection, the left side that promotes the module with accommodate the lead screw 7 fixed connection, it is provided with cavity 51 in the piece 5 to promote, the right side that promotes the module with preceding round axle 3 fixed connection, interception piece 6 and draw-in groove 4 joint. The cavity 51 is an arc-shaped cavity, the lower end of the arc-shaped cavity is communicated with the front circular shaft 3, and the upper end of the arc-shaped cavity extends to the outer side of the pushing block 5.
The hand-held part comprises a shell 1 and a front lock 2; a long-strip-shaped notch is formed above the shell 1; the long-strip-shaped cut is in sliding connection with the pushing block 5
Promote to be provided with a plurality of gears on the piece 5, promote the piece 5 with 6 fixed connection of interception piece is equipped with the latch of a plurality of equidistant range on the draw-in groove 4, is equipped with on the interception piece 6 with latch assorted arch, when exerting horizontal thrust to promoting the piece 5, the arch on the interception piece 6 can remove between the latch, when stopping carrying out horizontal propulsion to promoting the piece 5, the arch on the interception piece 6 can with the latch joint.
The front lock 2 connects the housing 1 with the hollow member 14;
the through cavity 52 penetrates through the knob 8, the adjusting screw rod 7, the pushing module and the front circular shaft 3, extends to the rear lock 9, and penetrates through the hollow part 14;
the housing 1 accommodates the adjusting screw 7, the push module and the front circular shaft 3.
The hand-held part is provided with a locking component, a knob 8, an adjusting screw rod 7, a pushing module, a front round shaft 3, a shell 1 and a through cavity 52, the locking component comprises a front lock 2 and a rear lock 9, and the front lock 2 is connected with the shell 1 and the hollow part 14; a long-strip-shaped notch is formed above the shell 1; the long-strip-shaped cut is connected with the pushing block 5 in a sliding mode, and the knob 8 is connected with the shell 1 in a rotating mode.
Fig. 3 and 4 are front views of a detachable thrombus removal support device according to the present invention.
The embolectomy support 10 comprises a woven double-spiral structure support, a support near-end mark (not shown in the figure) and a support far-end mark (not shown in the figure), wherein the support near-end mark is connected to the right side of the hollow part 14, and the woven double-spiral structure support is formed between the support near-end mark and the support far-end mark.
Woven double helix structure support includes stock silk 1004, development silk 1005, withdrawal silk 1002 and adjusting wire 11, and stock silk 1004 and development silk 1005 twist knot forms woven double helix structure support structure of support, the one end of withdrawal silk 1002 passes hollow member 14, preceding locking 2 in proper order, by lining up cavity 52 and extending to back locking 9 to it is articulated with back locking 9, adjusting wire 11 connects support near-end sign and support distal end sign, and extends to hollow member 14 by support near-end sign, by preceding locking 2 extend to preceding round axle 3 and the arc cavity in the promotion piece 5, and expose from the arc cavity.
Before the thrombus removal device is used, a conveying system consisting of the handheld part, the hollow part 14 and the thrombus removal support 10 is in a separated state, after the thrombus removal support 10 is conveyed to a lesion part along the microcatheter, the microcatheter can be withdrawn if needed, and then the handheld part is connected for thrombus removal operation.
As shown in fig. 5, 6 and 7, a first bending adjusting wire 1001 and a withdrawing wire 1002 extend from the thrombus removal support 10, when the handle and the thrombus removal support 10 are assembled, the withdrawing wire 1002 sequentially passes through the front lock 2, the front round shaft 3, the adjusting screw rod 7 and the knob 8 through the through cavity 52, and finally extends out from the left side of the knob 8, so that the withdrawing wire 1002 is hinged with the rear lock 9; the first bending adjusting wire 1001 penetrates through the bending adjusting ring 1003, the right end of the first bending adjusting wire 1001 is connected with a far-end mark of the bolt taking support 10, and the first bending adjusting wire 1001 sequentially penetrates through the hollow part 14, the front lock 2, the front round shaft 3 and the cavity 51 of the pushing block 5 from a near-end mark on the left side of the bolt taking support 10, finally penetrates through the pushing block 5, is exposed out of the upper end of the pushing block 5 and is fixed on the pushing block 5, and the bending degree of the support is adjusted.
The number of the bending adjusting rings 1003 can be adjusted according to the requirement of the bending angle;
in addition, an adjusting bend pipe 1301 and a second adjusting bend wire 1302 can be arranged in the bolt taking support 10, the second adjusting bend wire 1302 penetrates through the adjusting bend pipe 1301, one side or two sides of the adjusting bend pipe 1301 are provided with cutting structures such as rectangles, triangles and arcs, the material composition is one of stainless steel, nickel-titanium alloy and cobalt-chromium alloy high-elasticity materials, 100% torque transmission is achieved, the bending direction can be controlled, and the bolt taking pressure direction can be controlled;
the cavity 51 of the pusher block 5 may preferably be an arc-shaped cavity in an embodiment, the arc angle being 1/4 arcs of a circle.
After the thrombus taking support 10 is moved to a diseased region, the pushing block 5 is moved (the stopping block 6 is also moved along with the pushing block) to the position 5-2, and the first bending wire 1001 is pulled to control the support to bend (the state of the thrombus taking support 10 is changed to the state of 10-2 bending, and the position is kept unchanged); then, the stopping block 6 is slid to the 6-2 position, so that the stopping block stays on the pushing clamping groove 4 and is clamped with the pushing clamping groove 4; (if the bending angle is not appropriate, the pushing block 5 can be moved continuously for adjustment). Then the knob 8 is rotated to pull the bolt taking support 10 to retract, the bolt taking support 10 is pulled to slide, at the moment, the rear locking 9 position moves to 9-2, and the bolt taking support 10 is driven to move to 10-2.
Example two
The outer diameter of the thrombectomy support can be realized by the embodiment.
A separable thrombus removal support device comprises a handheld part, a thrombus removal support 10 and a hollow part 14, wherein the handheld part and the thrombus removal support 10 are connected through the hollow part 14, and the handheld part and the thrombus removal support 10 are both detachably connected with the hollow part 14; the handheld portion is provided with a withdrawing mechanism and an adjusting mechanism, the withdrawing mechanism is connected with one end of a withdrawing wire 1002, the other end of the withdrawing wire 1002 is connected with the bolt taking support 10, the adjusting mechanism is connected with one end of an adjusting wire 11, the other end of the adjusting wire 11 is connected with the bolt taking support 10, the withdrawing wire 1002 and the adjusting wire 11 penetrate through the hollow part 14, when the withdrawing mechanism withdraws the bolt taking device 10, the adjusting mechanism synchronously moves with the withdrawing mechanism to ensure that the shape of the bolt taking support 10 is unchanged, the withdrawing mechanism is used for withdrawing the bolt taking support 10, and the adjusting mechanism is used for adjusting the shape of the bolt taking support 10.
The retracting mechanism includes:
a rear lock 9, a knob 8, an adjusting screw rod 7 and a front round shaft 3;
the rear lock 9 is connected with a withdrawing wire 1002, the rear lock 9 is arranged on one side of the adjusting screw rod 7 and is fixedly connected with the adjusting screw rod 7, the knob 8 is sleeved on the adjusting screw rod 7 and is in threaded connection with the adjusting screw rod 7, and the knob 8 is rotatably connected with the handheld part; the adjusting screw rod 7 is internally provided with a first long-strip-shaped through hole for the withdrawing wire 1002 to pass through, the front round shaft 3 is internally provided with a second long-strip-shaped through hole for the withdrawing wire 1002 and the adjusting wire 11 to pass through, and the first long-strip-shaped through hole and the second long-strip-shaped through hole form a through cavity 52.
The adjusting screw rod 7 comprises a transmission rod 71, a thread rotating groove 72 is formed in the outer surface of the adjusting screw rod, one end of the transmission rod 71 is connected with the knob 8, and the other end of the transmission rod 71 is in threaded fit with the thread rotating groove 72.
The adjustment mechanism includes:
a pushing module and a pushing block 5;
be equipped with on the promotion module and promote draw-in groove 4, the front end that promotes piece 5 is equipped with the interception piece 6, the lower extreme that promotes piece 5 with promote module sliding connection, the left side that promotes the module with accommodate the lead screw 7 fixed connection, it is provided with cavity 51 in the piece 5 to promote, the right side that promotes the module with preceding round axle 3 fixed connection, interception piece 6 and draw-in groove 4 joint.
The hand-held part comprises a shell 1 and a front lock 2; a long-strip-shaped notch is formed above the shell 1; the long-strip-shaped cut is in sliding connection with the pushing block
The front lock 2 connects the housing 1 with the hollow member 14;
the through cavity 52 penetrates through the knob 8, the adjusting screw rod 7, the pushing module and the front round shaft 3, extends to the rear lock 9 and penetrates through the hollow part 14;
the housing 1 accommodates the adjusting screw 7, the push module and the front circular shaft 3.
As shown in fig. 8, a first tensile wire 1201 and a withdrawing wire 1002 extend out of the thrombectomy support 10, when the hand-held part and the thrombectomy support 10 are assembled, the withdrawing wire 1002 sequentially passes through the front lock 2, the front round shaft 3, the adjusting screw rod 7 and the knob 8 through the through cavity 52, and finally extends out of the left side of the knob 8, and the withdrawing wire 1002 is fixed on the rear lock 9 by the rear lock 9; meanwhile, the right end of the first tensile wire 1201 is connected with a far-end mark of the embolectomy support 10, the first tensile wire 1201 sequentially penetrates through the hollow part 14, the front lock 2, the front round shaft 3 and the arc-shaped cavity 51 of the pushing block 5 from the near-end mark on the left side of the embolectomy support 10, finally penetrates through the pushing block 5, is exposed out of the upper end part of the pushing block 5 and is fixed, and the outer diameter of the support is adjusted.
After the thrombus removal support 10 is moved to a diseased region, the pushing block 5 is moved (the stopping block 6 is also moved along with the pushing block) to 5-3 positions, and the first stretching wire 1201 is pulled to control the thrombus removal support 10 to expand and contract (the state of the thrombus removal support 10 is changed into a 12-3 bending deformation state, and the position is kept unchanged); then, the stopping block 6 is slid to the 6-3 position, the stopping block 6 pushes the clamping groove 4 to be clamped, and the stopping block 6 and the moving block 5 cannot move under the condition of no external force; (if the adjusted diameter is not appropriate, the pushing block 5 can be pushed to adjust continuously). Then the knob 8 is rotated to pull the bolt taking support 10 to retract, the bolt taking support 10 is pulled to slide, at the moment, the rear locking 9 position moves to 9-3, and the bolt taking support 10 is driven to move.
EXAMPLE III
The embodiment can realize the sectional adjustment of the bolt taking bracket.
A separable embolectomy support device comprises a handheld part, an embolectomy support 10 and a hollow part 14, wherein the handheld part and the embolectomy support 10 are connected through the hollow part 14, and both the handheld part and the embolectomy support 10 are detachably connected with the hollow part 14; the handheld portion is provided with a withdrawing mechanism and an adjusting mechanism, the withdrawing mechanism is connected with one end of a withdrawing wire 1002, the other end of the withdrawing wire 1002 is connected with the bolt taking support 10, the adjusting mechanism is connected with one end of an adjusting wire 11, the other end of the adjusting wire 11 is connected with the bolt taking support 10, the withdrawing wire 1002 and the adjusting wire 11 penetrate through the hollow part 14, when the withdrawing mechanism withdraws the bolt taking device 10, the adjusting mechanism synchronously moves with the withdrawing mechanism to ensure that the shape of the bolt taking support 10 is unchanged, the withdrawing mechanism is used for withdrawing the bolt taking support 10, and the adjusting mechanism is used for adjusting the shape of the bolt taking support 10.
The retracting mechanism includes:
a rear lock 9, a knob 8, an adjusting screw rod 7 and a front round shaft 3;
the rear lock 9 is connected with a withdrawing wire 1002, the rear lock 9 is arranged on one side of the adjusting screw rod 7 and is fixedly connected with the adjusting screw rod 7, the knob 8 is sleeved on the adjusting screw rod 7 and is in threaded connection with the adjusting screw rod 7, and the knob 8 is rotatably connected with the handheld part; the adjusting screw rod 7 is internally provided with a first long-strip-shaped through hole for the withdrawing wire 1002 to pass through, the front round shaft 3 is internally provided with a second long-strip-shaped through hole for the withdrawing wire 1002 and the adjusting wire 11 to pass through, and the first long-strip-shaped through hole and the second long-strip-shaped through hole form a through cavity 52.
The adjusting screw rod 7 comprises a transmission rod 71, a thread rotating groove 72 is formed in the outer surface of the adjusting screw rod, one end of the transmission rod 71 is connected with the knob 8, and the other end of the transmission rod 71 is in threaded fit with the thread rotating groove 72.
The adjustment mechanism includes:
a pushing module and a pushing block 5;
be equipped with on the promotion module and promote draw-in groove 4, the front end that promotes piece 5 is equipped with the interception piece 6, the lower extreme that promotes piece 5 with promote module sliding connection, the left side that promotes the module with accommodate the lead screw 7 fixed connection, it is provided with cavity 51 in the piece 5 to promote, the right side that promotes the module with preceding round axle 3 fixed connection, interception piece 6 and draw-in groove 4 joint.
The hand-held part comprises a shell 1 and a front lock 2; a long-strip-shaped notch is formed above the shell 1; the long-strip-shaped cut is in sliding connection with the pushing block
The front lock 2 connects the housing 1 with the hollow member 14;
the through cavity 52 penetrates through the knob 8, the adjusting screw rod 7, the pushing module and the front round shaft 3, extends to the rear lock 9 and penetrates through the hollow part 14;
the housing 1 accommodates the adjusting screw 7, the push module and the front circular shaft 3.
As shown in fig. 9 and 10, the embolectomy stent 10 includes a stretching tube 1601, a second stretching wire 1602 and a second withdrawing wire 1603, the right end of the second withdrawing wire 1603 is connected to positions 16 and 17 of the embolectomy stent 10 to be adjusted, the positions 16 and 17 are intersecting positions of the shaping wire 1004 and the developing wire 1005 of the woven double-spiral stent, when the hand-held part and the embolectomy stent 10 are assembled, the second withdrawing wire 1603 passes through the front lock 2, the front circular shaft 3, the adjusting screw 7 and the knob 8 in sequence through the through cavity 52 and finally extends out to the left side of the knob 8, the second withdrawing wire 1603 is fixed on the rear lock 9, the second withdrawing wire 1603 can support the embolectomy stent, and the second withdrawing wire 1603 is used for positioning the length range of the outer diameter of the embolectomy stent 10 to be adjusted.
The second tensile silk 1602 passes through the tensile pipe 1601, and the second tensile silk 1602 right-hand member connects the distal end sign of thrombectomy support 10, and the second tensile silk 1602 passes hollow part 14, preceding locking 2, preceding circle axle 3, the arc cavity 51 of promotion piece 5 from the left near-end sign of thrombectomy support 10 in proper order, passes the promotion piece 5 at last, exposes and fixes from the upper end that promotes piece 5 for the external diameter of the position that the regulation of thrombectomy support 10 needs, guarantees simultaneously that the not tensile region 15 of thrombectomy support 10 does not take place deformation, realizes the external diameter of subsection adjustment thrombectomy support 10.
The drawing tube 1601 has a plurality of segments arranged at intervals, the second withdrawal filament 1603 and the second drawing filament 1602 have a plurality of segments, the front end of the second drawing filament 1602 in fig. 10 is connected with the tail of the previous drawing tube 1601, when the second drawing filament 1602 in fig. 10 is drawn, the distance between the two drawing tubes 1601 is reduced, so that the diameter of the embolectomy stent 10 between the two drawing tubes can be adjusted.
After the thrombectomy stent 10 is moved to a lesion part, the pushing block 5 is moved (the stopping block 6 is also moved) to a position 5-4, the second stretching wire 1602 is pulled to control the thrombectomy stent 10 to expand and contract (the position 16 state of the thrombectomy stent 10 is changed into a 16-4 bending deformation state, and the position is kept unchanged), and of course, if the second stretching wire 1602 at the position 17 is adjusted, the state at the position 17 can be changed into a position 17-4; then, the stopping block 6 is slid to the 6-4 position, so that the stopping block is clamped with the pushing clamping groove 4; if the adjusted diameter is not appropriate, the pushing block 5 can be continuously pushed to adjust. Then the knob 8 is rotated to pull the bolt taking bracket 10 to retract, the bolt taking bracket 10 is pulled to slide, and the rear locking 9 position is moved to 9-4.
The invention provides a handheld part and a separable embolectomy support device, which have the working principle that a component for bending and adjusting the outer diameter of a embolectomy support and a component for horizontally withdrawing the embolectomy support after embolectomy are separately connected to different positions of the handheld part and are respectively adjusted; through separation adjustment mechanism and withdrawal mechanism, transfer the return bend or transfer curved ring, can realize adjusting the crooked external diameter of thrombectomy support, the diameter of sectionally adjusting thrombectomy support realizes taking out simultaneously the thrombus piece segmentation of difference.
The invention has the following technical beneficial effects: 1) the detachable assembly of the handheld part and the bolt taking bracket can be realized; 2) the bending angle of the thrombus taking bracket can be adjusted, and the size of the outer diameter can be changed; 3) the sectional adjustment of the outer diameter can be realized, and different thrombus blocks can be taken out simultaneously in a sectional manner.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. The protection scope of the present invention should be subject to the appended claims.
Claims (14)
1. A detachable thrombectomy support device comprising a handle, a thrombectomy support (10) and a hollow member (14), wherein: the hand-held part and the embolectomy support (10) are connected through the hollow part (14), and both the hand-held part and the embolectomy support (10) are detachably connected with the hollow part (14); the utility model discloses a bolt taking device, including handheld portion, be equipped with withdrawal mechanism and adjustment mechanism on the handheld portion, withdrawal mechanism links to each other with the one end of withdrawal silk (1002), the other end of withdrawal silk (1002) with get bolt support (10) and link to each other, adjustment mechanism links to each other with the one end of adjusting wire (11), the other end of adjusting wire (11) with get bolt support (10) and link to each other, withdrawal silk (1002) and adjusting wire (11) all pass hollow member (14), when withdrawal mechanism withdraws and gets bolt device (10), adjustment mechanism with withdrawal mechanism synchronous motion to the appearance of guaranteeing to get bolt support (10) is unchangeable, withdrawal mechanism is used for withdrawing and gets bolt support (10), adjustment mechanism is used for adjusting the appearance of getting bolt support (10).
2. The detachable thrombectomy support apparatus of claim 1, wherein the retraction mechanism comprises:
a rear lock (9), a knob (8), an adjusting screw rod (7) and a front round shaft (3);
the rear lock (9) is connected with a withdrawing wire (1002), the rear lock (9) is arranged on one side of the adjusting screw rod (7) and is fixedly connected with the adjusting screw rod (7), the knob (8) is sleeved on the adjusting screw rod (7) and is in threaded connection with the adjusting screw rod (7), and the knob (8) is rotatably connected with the handheld part; a first long-strip-shaped through hole for the withdrawing wire (1002) to pass through is formed in the adjusting screw rod (7), a second long-strip-shaped through hole for the withdrawing wire (1002) and the adjusting wire (11) to pass through is formed in the front circular shaft (3), and the first long-strip-shaped through hole and the second long-strip-shaped through hole form a through cavity (52).
3. A detachable embolectomy stent device as defined in claim 2, wherein: the adjusting screw rod (7) comprises a transmission rod (71), a thread rotating groove (72) is formed in the outer surface of the adjusting screw rod, one end of the transmission rod (71) is fixedly connected with the knob (8), and the other end of the transmission rod (71) is in threaded fit with the thread rotating groove (72).
4. A detachable embolectomy support device as claimed in claim 3 wherein the adjustment mechanism comprises:
the pushing module and the pushing block (5);
be equipped with on the promotion module and promote draw-in groove (4), the front end that promotes piece (5) is equipped with interception piece (6), the lower extreme that promotes piece (5) with promote module sliding connection, the left side that promotes the module with accommodate the lead screw (7) fixed connection, be provided with cavity (51) in promoting piece (5), the right side that promotes the module with preceding round axle (3) fixed connection, interception piece (6) and draw-in groove (4) joint.
5. A detachable thrombectomy support apparatus according to claim 4, wherein:
the hand-held part comprises a housing (1) and a front lock (2); a strip-shaped notch is formed above the shell (1); the long-strip-shaped cut is in sliding connection with the pushing block (5); the front lock (2) connects the housing (1) with the hollow element (14);
the through cavity (52) penetrates through the knob (8), the adjusting screw rod (7), the pushing module and the front round shaft (3), extends to the rear lock (9), and is communicated with the hollow part (14);
the shell (1) contains the adjusting screw rod (7), the pushing module and the front round shaft (3).
6. A detachable embolectomy stent device as defined in claim 5, wherein: the cavity (51) is an arc-shaped cavity, the lower end of the arc-shaped cavity is communicated with the front circular shaft (3), and the upper end of the arc-shaped cavity extends to the outer side of the pushing block (5).
7. The detachable embolectomy support device of claim 6, wherein: the thrombus removal support (10) comprises a woven double-spiral structure support, a support near-end mark and a support far-end mark, the right side of the hollow part (14) is connected with the support near-end mark, and the woven double-spiral structure support is formed between the support near-end mark and the support far-end mark.
8. A detachable thrombectomy support apparatus according to claim 7, wherein: the woven double-spiral-structure support comprises a shaping wire (1004), a developing wire (1005), a withdrawing wire (1002) and an adjusting wire (11);
the withdrawal wire (1002) penetrates the hollow part (14) and the front lock (2), extends from the through cavity (52) to the rear lock (9), and is hinged with the rear lock (9);
the adjusting wire (11) is connected with the bracket near-end mark and the bracket far-end mark, extends to the hollow part (14) from the bracket near-end mark, extends to the front round shaft (3) and the cavity (51) in the pushing block (5) from the front lock (2), and is exposed from the cavity (51).
9. A detachable embolectomy stent device as defined in claim 8, wherein: the woven double-spiral structure further comprises a bending adjusting ring (1003), the adjusting wire (11) is a first bending adjusting wire (1001), the withdrawing wire (1002) and the first bending adjusting wire (1001) penetrate through the bending adjusting ring (1003) and are connected with the far-end mark of the support, and the first bending adjusting wire (1001) is used for adjusting the bending degree of the support (10).
10. A detachable embolectomy stent device as defined in claim 9, wherein: the number of the bending adjusting rings (1003) is more than 1.
11. A detachable thrombectomy support apparatus according to claim 8, wherein: woven double helix structure still includes transfers return bend (1301), it transfers curved silk (1302) to adjust silk (11) for No. two, withdrawal silk (1002) with No. two transfer curved silk (1302) run through transfer return bend (1301), and with support distal end sign link to each other, one side or both sides of transferring return bend (1301) are equipped with cutting structures such as rectangle, triangle-shaped, arc, the material of transferring return bend (1301) is one of materials such as stainless steel, nickel titanium alloy, cobalt chromium alloy.
12. A detachable embolectomy stent device as defined in claim 8, wherein: the adjusting wire (11) is a first stretching wire (1201), the right end of the first stretching wire (1201) is connected with the far-end mark of the embolectomy support (10), and the first stretching wire (1201) is used for adjusting the size of the outer diameter of the support.
13. A detachable embolectomy stent device as defined in claim 8, wherein: adjusting wire (11) are tensile silk (1602) of second, woven type double helix structure still includes tensile pipe (1601) and second withdrawal silk (1603), position (16, 17) that need adjust on getting bolt support (10) are withdrawn to second withdrawal silk (1603) right side end connection, position (16, 17) are the design silk (1004) of woven type double helix structure support, developer silk (1005) crossing position, second withdrawal silk (1603) is through lining up cavity (52) and pass preceding locking (2) in proper order, preceding round shaft (3), accommodate the screw pole (7), knob (8), finally stretch out in the left side of knob (8), on locking (9) after fixing second withdrawal silk (1603), the second withdrawal silk is used for the length range that the location got bolt support (10) need adjust the external diameter.
The second tensile wire (1602) penetrates through the tensile pipe (1601), the right end of the second tensile wire (1602) is connected with a far-end mark of the embolectomy support (10), the second tensile wire (1602) sequentially penetrates through the hollow part (14), the front lock (2), the front circular shaft (3) and the arc-shaped cavity (51) of the pushing block (5) from a near-end mark on the left side of the embolectomy support (10) and is exposed out of the upper end part of the pushing block (5), the second tensile wire (1602) is used for adjusting the outer diameter of a position (16) of the embolectomy support (10) which needs to be adjusted, meanwhile, the fact that the non-tensile area (15) of the embolectomy support (10) does not deform is guaranteed, and the outer diameter of the embolectomy support (10) is adjusted in a segmented mode;
the stretching tube (1601) has a plurality of sections arranged at intervals, and the second withdrawing wire (1603) and the second stretching wire (1602) have a plurality of sections.
14. A detachable embolectomy support device as claimed in any of claims 8-12, wherein: the withdrawing wire (1002) and the adjusting wire (11) penetrate through the stent near-end mark and the stent far-end mark, and the stent near-end mark and the stent far-end mark are made of any developing material of platinum iridium alloy, platinum tungsten alloy, tantalum and gold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210575542.6A CN114948089A (en) | 2022-05-25 | 2022-05-25 | Separable bolt taking support device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210575542.6A CN114948089A (en) | 2022-05-25 | 2022-05-25 | Separable bolt taking support device |
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| CN114948089A true CN114948089A (en) | 2022-08-30 |
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| CN202210575542.6A Pending CN114948089A (en) | 2022-05-25 | 2022-05-25 | Separable bolt taking support device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108904008A (en) * | 2018-08-14 | 2018-11-30 | 上海微密医疗科技有限公司 | A kind of controllable cerebrovascular takes bolt bracket and transport control system |
| WO2022022223A1 (en) * | 2020-07-29 | 2022-02-03 | 山东维心医疗器械有限公司 | Blood vessel dredging and cleaning device |
| CN114191035A (en) * | 2021-09-18 | 2022-03-18 | 上海暖阳医疗器械有限公司 | Three-dimensional intracranial thrombus removal support and thrombus removal system |
| CN114391917A (en) * | 2022-01-07 | 2022-04-26 | 无锡天广泰医疗科技有限公司 | Variable-diameter thrombus removal device and use method thereof |
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2022
- 2022-05-25 CN CN202210575542.6A patent/CN114948089A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108904008A (en) * | 2018-08-14 | 2018-11-30 | 上海微密医疗科技有限公司 | A kind of controllable cerebrovascular takes bolt bracket and transport control system |
| WO2022022223A1 (en) * | 2020-07-29 | 2022-02-03 | 山东维心医疗器械有限公司 | Blood vessel dredging and cleaning device |
| CN114191035A (en) * | 2021-09-18 | 2022-03-18 | 上海暖阳医疗器械有限公司 | Three-dimensional intracranial thrombus removal support and thrombus removal system |
| CN114391917A (en) * | 2022-01-07 | 2022-04-26 | 无锡天广泰医疗科技有限公司 | Variable-diameter thrombus removal device and use method thereof |
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