CN203506934U - Sheath core for conveying interventional instrument and conveying system with same - Google Patents
Sheath core for conveying interventional instrument and conveying system with same Download PDFInfo
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- CN203506934U CN203506934U CN201320547438.2U CN201320547438U CN203506934U CN 203506934 U CN203506934 U CN 203506934U CN 201320547438 U CN201320547438 U CN 201320547438U CN 203506934 U CN203506934 U CN 203506934U
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Abstract
The utility model discloses a sheath core for conveying an interventional instrument and a conveying system with the sheath core. The sheath core comprises a core tube, wherein a guiding head and an implanted instrument fixing head are fixed to the far end of the core tube, the portion, arranged between the guiding head and the implanted instrument fixing head, of the core tube serves as an installing section used for placement of an implanted instrument, and a tube wall thickening layer is arranged at the periphery of the installing section. The conveying system comprises the sheath tube and the sheath core, wherein the sheath core is arranged in the sheath tube, and is used for conveying the interventional instrument. According to the sheath core for an interventional operation, the phenomenon that a conveying system is bent in the advancing process can be avoided, and safety is high. According to the conveying system, controllability of the bending direction of the far end of the sheath tube is improved, a doctor can conveniently bend and move the far end of the sheath tube to the target direction or the target position through a traction fiber, and difficulty of the operation is reduced.
Description
Technical field
This utility model belongs to technical field of medical instruments, relates in particular to a kind of sheath core of carrying for intervention apparatus and has the induction system of this sheath core.
Background technology
The wound that intervene operation causes human body is little, and invasive is few, is the medical skill of rising and promoting rapidly in recent years, conventionally needs special induction system that medical instruments, implantation instrument etc. is delivered to diseased region.Induction system mainly consists of sheath pipe, the sheath core that is positioned at sheath pipe and the operating grip in near-end, during conveying, implantation instrument is installed in the far-end of sheath core, sheath pipe box is the outside of sheath core and implantation instrument is compressed, by the seal wire track of setting up in advance, in the far-end puncture intravasation of induction system, doctor controls it by operating grip and marches to diseased region by releases such as medical instruments, implantation instruments along the seal wire track establishing in advance.
Based on the tortuous roundabout characteristic of human blood circulatory system, this just requires induction system must have good fold resistance, once induction system bends, directly causes operative failure.In order to improve the fold resistance of induction system, current most research concentrates on the improvement to sheath tubular construction, and the Chinese patent literature that is CN101933821A, CN102847220A as publication number has all related to improvement such as the layer structure of conduit (sheath pipe) and materials to improve its fold resistance.And in traveling process, the fold resistance at induction system carrying implantation instrument position rarely has research, conventionally the structure of implantation instrument is not complete and homogeneous symmetry, therefore, when it is compressed while being installed in induction system, there is larger gap often and between sheath core in some position of implantation instrument, and the existence in gap has increased the bending risk at these positions.
As take artificial Cardiac Valve Replacement as example, Figure 12 has shown the structure of existing a kind of aortic valve replacement device, by support and the prosthetic valve (not shown) being fixed in support, formed, support serve as reasons the successively aortic stents 401, the valve bracket 402 that connect and flow to the netted tubular construction that support 403 forms, flow to support 403 with overlay film, prosthetic valve is made at valve bracket 402 places, the top of aortic stents 401 along be provided with for fixing three latch fittings 404 of sheath core.Be not difficult to find out, when it is loaded into after induction system, with overlay film lobe leaf, flow to support 403 positions than aortic stents 401, valve bracket 402 consolidations, relatively between aortic stents 401 positions and sheath core present more loose rare space, wherein the bar portion 4041 of three latch fittings 404 at aortic stents 401 positions is more sparse, unsettled between sheath pipe and sheath core (as shown in figure 13), there is larger space 600.
Equally, the Chinese patent literature that and for example publication number is CN102258402A has related to a kind of heart valve delivery system and conveyer device thereof, Figure 20 has shown the state when cardiac valve (being Prosthetic valve replacement device) of a kind of structure in this patent starts to load, the wire rod density degree at visible cardiac valve 300 two ends is obviously different, when it is loaded into after conveyer device completely, as shown in figure 21, although visible cardiac valve 300 is in a tubular form compressed, but between its latch fitting bar portion and sheath core 500, there is very large gap 601, unsettled obvious
Therefore, when induction system is being carried implantation instrument turning, the interior loading of sheath pipe is more sparse, more easily produces bending, and particularly the unsettled place of bar portion of latch fitting very easily bends, and causes the release failure of implantation instrument, threatens patient's life security.
Utility model content
This utility model provides a kind of sheath core for intervene operation, can prevent that discounting phenomenon from appearring in induction system in traveling process, safe.
A kind of sheath core of carrying for intervention apparatus, comprise core pipe, the far-end of described core pipe is fixed with seeker and intervention apparatus fixing head, the position of described core pipe between seeker and implantation instrument fixing head is that the periphery of described construction section is provided with tube wall thickening layer for placing the construction section of implantation instrument.
By tube wall thickening layer is set, can fill the gap between implantation instrument and construction section, overcome the unsettled phenomenon existing between some position of implantation instrument and construction section, avoided induction system when turning because the existence compared with large space bends.
Architectural difference due to different implantation instruments, the position that between itself and construction section, gap exists, size etc. are difference to some extent also, therefore, the position of tube wall thickening layer, shape, thickness etc. can arrange according to the structure of concrete implantation instrument, and itself and corresponding gap are adapted.For guaranteeing the compliance of induction system, described tube wall thickening layer can adopt the good materials of elasticity such as organosilicon, polyurethane to make.
For the not strict restriction of the mounting means of tube wall thickening layer, described tube wall thickening layer and construction section is one-body molded or fixed cover is located at the outside of construction section.
At least one end of described tube wall thickening layer is the taper that external diameter reduces gradually.Pyramidal structure makes the external diameter transition gradually of tube wall thickening layer, can better fill the overhead positions between implantation instrument and construction section, and can avoid damaging implantation instrument, does not also affect the release of implantation instrument simultaneously.
Implantation instrument is before being released, state in being compressed by sheath pipe always, owing to pushing implantation instrument to the process of implantation site, need pull, rotation sheath pipe, especially induction system frequently when turning, to operate more frequent, during additional turning, sheath pipe will experience the process of deformation, the distal end of implantation instrument is very easily deviate to expose, and for avoiding its damage tissue, the periphery of described seeker is provided with for stopping the radial convex loop of sheath end surfaces.
The height of described radial convex loop is 1.5～2.5mm.In induction system, radial convex loop is than the high 1.5～2.5mm of the outer wall of sheath pipe, within the scope of this, can be when sheath pipe bends, in direction of advance, bulge loop height, higher than sheath pipe remote port, makes the seeker of following that sheath pipe still can be level and smooth pass through narrow or obstacle place, and effectively prevents that the end of implantation instrument far-end from exposing in-vivo tissues such as scratching blood vessel simultaneously.Preferably, the height of described radial convex loop is 2～2.5mm.
Described implantation instrument is Prosthetic valve replacement device.Obvious, described implantation instrument is not limited in Prosthetic valve replacement device.
This utility model also provides a kind of induction system, comprises sheath pipe, is placed in the described sheath core of carrying for intervention apparatus in described sheath pipe.
Described sheath pipe comprises the body with far-end and near-end, is provided with vertically reinforcement and traction fiber in the tube wall of described body, and described traction fiber can slide in body, and the far-end of this traction fiber is fixed on the far-end of described body.
Reinforcement the wrap direction of having located body is set, in reinforcement and body axis line direction radially, sheath pipe is difficult for bending, when sheath pipe is when along seal wire, in blood vessel, bending is advanced, sheath pipe completes BENDING PROCESS by the adaptive side with the easiest bending, in the vertical line direction bending of reinforcement and body axis line, to comply with the vascular system of human body, advance, when sheath pipe tracking passes through after the crooked position of blood vessel, sheath pipe can be adaptive by flexible direction towards vasotropic center, now pull traction fiber, can make the vasotropic center curvature of far-end of sheath pipe, mobile.
The position that body is connected with expansion arc is weak link, while turning for fear of induction system, this place kills folding, affect the release of implantation instrument, described sheath pipe also comprises the expansion arc being connected with described body far-end, between described expansion arc and body, by the changeover portion thickening, be connected, and the outer wall of this changeover portion and described expansion arc and body all seamlessly transit, the far-end of described reinforcement and the remote extension of traction fiber are fixed in this changeover portion.
The number of reinforcement is too much unsuitable, can arrange one or two.
When reinforcement is one, as a kind of selection mode wherein, described traction fiber is one, and described reinforcement is one, and on the arbitrary section of body, the center angle of reinforcement and traction fiber is 30～150 °.It is curved that traction fiber is merely able to realize unidirectional tune, when sheath pipe being adjusted when curved to the opposing direction in traction fiber, sheath pipe can be rotated after approximately 180 °, then pull traction fiber.When traction fiber is set, traction fiber should be avoided excessively near reinforcement, otherwise need apply the far-end bending that larger pulling force can affect sheath pipe to traction fiber, operation easier is larger, so the center angle of reinforcement and traction fiber can overcome this problem in above-mentioned scope.Preferably, the center angle of reinforcement and traction fiber is 80～100 °.
The cross section that it will be understood by those in the art that above-mentioned body refers to the radial section of body, and the center angle of reinforcement and traction fiber is the angle of reinforcement, traction fiber and kernel of section.
As another kind of selection mode, described reinforcement is one, and described traction fiber is two, and two traction fibers are distributed in the both sides of reinforcement and body axis line radially, on the arbitrary section of body, the center angle of reinforcement and any traction fiber is 30～150 °.Preferably, the center angle of reinforcement and traction fiber is 80～100 °.
A reinforcement may cause sheath pipe ceaselessly to reverse in traveling process, and for overcoming this defect, reinforcement can be set to two, and in addition, two reinforcements also can be stricter to the restriction of sheath pipe bending direction.
When reinforcement is two, as a kind of selection mode wherein, described traction fiber is one, described reinforcement is two, article two, reinforcement is in the axle center offside of described body, and on the arbitrary section of body, the center angle of any reinforcement and traction fiber is 30～150 °.Preferably, the center angle of reinforcement and traction fiber is 80～100 °.
As another kind of selection mode, described traction fiber is two, described reinforcement is two, described traction fiber and reinforcement are upwards spaced apart in the week of body, article two, reinforcement is in the axle center offside of described body, on the arbitrary section of body, any reinforcement and wherein the center angle of a traction fiber are 30～150 °.Article two, the axle center offside that reinforcement is in described body i.e. two reinforcements is in the two opposite sides of described body, like this, sheath pipe is difficult for bending in two reinforcements line direction radially, can only be in the perpendicular bisector direction bending of two reinforcement lines, while pulling traction fiber, the far-end of sheath pipe certainty and the most flexible direction of easier court (direction of traction fiber) bending.Preferably, the center angle of reinforcement and traction fiber is 80～100 °.
It will be understood by those in the art that the far-end at the pipe of sheath described in this utility model, core pipe etc. refers in induction system, away from one end of operating grip, the near-ends such as described sheath pipe, core pipe refer in induction system, near one end of operating grip.
Compared with prior art, the beneficial effects of the utility model are:
(1) this utility model arranges tube wall thickening layer by the construction section at sheath core, can effectively prevent that induction system from giving a discount at implantation instrument position, thereby avoid implantation instrument release to be obstructed, and has improved the safety of operation, has reduced operation risk.
(2) this utility model, by seeker is carried out to particular design, has reduced induction system and in traveling process, has scratched the risk of the in-vivo tissues such as blood vessel, has guaranteed induction system operation smoothly in body vessels system, safe.
(3) in induction system of the present utility model, sheath pipe can utilize reinforcement to bring into play the curved effect of self-align tune, and traction fiber and reinforcement are rationally arranged, improved the controllability of sheath pipe far-end bending direction, doctor is can be easily crooked by sheath pipe far-end by traction fiber, move to target direction or site, reduced operating difficulty.
Accompanying drawing explanation
Fig. 1 is that this utility model is for the structural representation of the sheath core of intervention apparatus conveying.
Fig. 2 is the state diagram at this utility model sheath core and the sheath pipe seeker position while being used in conjunction with.
Fig. 3 is the structural representation of this utility model tube wall thickening layer sheath core while arranging near seeker.
Fig. 4 is the structural representation that this utility model tube wall thickening layer is arranged on construction section when middle part sheath core.
Fig. 5 is the structural representation that this utility model tube wall thickening layer is arranged on construction section another kind of sheath core of when middle part.
Fig. 6 is the structural representation of this utility model induction system.
Fig. 7 is the structural representation of the induction system mesotheca pipe shown in Fig. 6;
Fig. 8 is that the induction system mesotheca pipe shown in Fig. 6 is along the cutaway view of A-A direction;
Fig. 9 is the structural representation that this utility model is provided with the sheath pipe of a reinforcement and two traction fibers;
Figure 10 is the structural representation that this utility model is provided with the sheath pipe of a reinforcement and a traction fiber;
Figure 11 is the structural representation that this utility model is provided with the sheath pipe of two reinforcements and a traction fiber;
Figure 12 is the structure of aortic valve replacement device in prior art.
Figure 13 is in prior art, the structural representation when aortic valve replacement device shown in Figure 12 is loaded into induction system.
Figure 14 is the structural representation of the aortic valve replacement device shown in Figure 12 while being loaded into induction system of the present utility model.
Figure 15 is the structural representation that induction system of the present utility model is passed through aortic arch;
Figure 16 is the enlarged drawing at aortic arch position in Figure 15;
Figure 17 is that Figure 16 is along the cutaway view of B-B direction;
Figure 18 is that induction system of the present utility model is passed through after aortic arch, the structural representation that the far-end of sheath pipe moves to blood vessel center;
Figure 19 is that induction system of the present utility model marches to the structural representation that discharges aortic valve replacement device after implantation site.
Figure 20 is the structural representation of the cardiac valve of another kind of structure in prior art while starting to install toward induction system.
Figure 21 is the structural representation that the cardiac valve shown in Figure 20 is loaded into conveyer device completely.
The specific embodiment
Below in conjunction with specific embodiment, this utility model is further explained.
Fig. 1 shows this utility model for the structure of the sheath core of intervention apparatus conveying, comprises core pipe 101, seeker 102 and implantation instrument fixing head 103.
Implantation instrument fixing head 103 is with through hole and locating slot 109, be positioned at the far-end of core pipe 101, specifically can adopt conventional structure, as can be CN101953724A with reference to publication number, the Chinese patent literature that denomination of invention is " for loading the bracket fixing head of valvular prosthetic replacement's device ".
Tube wall thickening layer 108 is for filling the hanging part between implantation instrument and construction section, due to the difference existing between implantation instrument, hanging part between implantation instrument and construction section, unsettled size, shape etc. also can be different thus, therefore, the shape of tube wall thickening layer, the size of the position of setting and tube wall thickening layer all can arrange according to specific implantation instrument.As, tube wall thickening layer 108 can fixed cover be located at the position of contiguous implantation instrument fixing head 103, one end of this tube wall thickening layer 108 is near implantation instrument fixing head 103, and the other end is the taper (Fig. 1) that external diameter reduces gradually.Arranging of tube wall thickening layer can also be as shown in Figure 3, and one end of tube wall thickening layer 108 is near seeker, and the other end is the taper that external diameter reduces gradually.Referring to Fig. 4 and Fig. 5, tube wall thickening layer 108 also can fixed cover be located at the middle part of construction section, and the two ends of tube wall thickening layer are the taper that external diameter reduces gradually, and the concrete shape of tube wall thickening layer also can change.
For guaranteeing the compliance at induction system implantation instrument position, tube wall thickening layer 108 can adopt the good material of elasticity to make, as organosilicon, polyurethane etc.
In addition, tube wall thickening layer and construction section are except adopting the mounting means of fixing suit, and tube wall thickening layer and construction section also can adopt integrated mode to process.
This utility model also provides a kind of induction system, referring to Fig. 6, comprise sheath pipe 200, sheath core 100 and with the near-end of sheath pipe, the joystick (not shown) that the near-end of sheath core fixes, wherein, sheath core can adopt structure as above.
As shown in Figure 8, in the tube wall of body 203, in axial direction offer two passages 209, in each passage 209, be equipped with a traction fiber 204, traction fiber 204 can be in the interior slip of passage 209, the remote extension of these two traction fibers 204 is fixed in changeover portion 202, and the near-end of traction fiber 204 extends body 203 along passage separately and is connected with joystick.
In the tube wall of body 203, be in axial direction also provided with the reinforcement 205 of two bar shapeds, these two reinforcements 205 are in the two opposite sides in body 203 axle center, and from the remote extension of body 203 to proximal end, the distal end of these two reinforcements 205 is fixed in changeover portion 202.Conventionally, radially, body 203 comprises internal layer 206, enhancement Layer 207 and outer 208 from the inside to the outside successively.Internal layer 206 and outer 208 can adopt identical or different macromolecular lubricating materials to make, and as internal layer 206 can adopt polytetrafluoroethylmaterial material, outer 208 can adopt the materials such as polyethylene, polyurethane.The spring tube structure that enhancement Layer 207 is braided steel wire, spring tube structure not only makes sheath pipe for certain axial support power, simultaneously, its crooked flexility is good, make sheath caliber to compliance better, in this utility model, reinforcement 205 can be close to enhancement Layer 207 setting.
Week at body 203 makes progress, and reinforcement 205 is spaced apart with traction fiber 204.
Article two, reinforcement has not only strengthened the tensile strength of body, improve the axial support intensity of body, guaranteed the propelling movement of sheath pipe, simultaneously, also located the wrap direction of body, sheath pipe is difficult for bending in two reinforcements line direction (being the z direction of principal axis shown in Fig. 7) radially, when sheath pipe is traveling in along blood vessel wall in the body vessels system of winding complex, the bending of the sheath pipe meeting adaptive vertical line direction at two reinforcement lines (being the y direction of principal axis shown in Fig. 7), when sheath pipe tracking passes through after the crooked position of blood vessel, sheath pipe can be adaptive by flexible direction towards vasotropic center, and traction fiber and reinforcement are upwards spaced apart in the week of body, direct pull traction fiber now, can make the vasotropic center curvature of far-end of sheath pipe.
When traction fiber is set, traction fiber should be avoided excessively close reinforcement, otherwise need apply the far-end bending that larger pulling force can affect sheath pipe to traction fiber, and operation easier is larger.Conventionally, on the arbitrary section of body, wherein a traction fiber 204 is not less than 30 ° with any reinforcement 205 center included angle A, when the center angle of any traction fiber and an arbitrary reinforcement is 90 °, pulling force required when now traction fiber pulls the bending of sheath pipe far-end is minimum, very easily controls.
It should be noted that, in this utility model, the number of reinforcement is not limited in two, as shown in 9, in the tube wall of body 203, in axial direction offer two passages 209, in each passage 209, be equipped with a traction fiber 204, in the tube wall of body 203, be in axial direction provided with a reinforcement 205, sheath pipe is still difficult for occurring bending in the direction of reinforcement, still can reach the curved object of self-align tune, but in order to obtain better effect, in the situation that a reinforcement 205 is only set, the overstriking of these reinforcement 205 adaptabilities (comparing with the situation that two reinforcements are set).
In addition, traction fiber also can only be set to one, Figure 10 and Figure 11 show the structure of body when a traction fiber is set, as shown in figure 10, in the tube wall of body 203, in axial direction offer a passage 209, in passage 209, be provided with a traction fiber 204, in the tube wall of body 203, be in axial direction provided with a reinforcement 205.Structure and the Figure 10 of body shown in Figure 11 are similar, difference is, is in axial direction provided with two reinforcements 205 in the tube wall of body 203, these two reinforcements two opposite sides in body axle center, on the arbitrary section of body, two reinforcement 205 center angles are 180 °.
Now in conjunction with aortic valve replacement, further explain this utility model, wherein still to take the aortic valve replacement device shown in Figure 12 be example to implantation instrument.
During art, first aortic valve replacement device is loaded in induction system, first make the implantation instrument fixing head of sheath core stretch out sheath pipe, seeker is through after the aortic valve replacement device of tubulose, the latch fitting of aortic valve replacement device is fixed in the locating slot of implantation instrument fixing head outer wall, then sheath pipe is wrapped to aortic valve replacement device completely.
Figure 14 shows induction system of the present utility model and is loaded into the state after aortic valve replacement device, now, the expansion arc 201 of sheath pipe 200 is enclosed within the afterbody 105 of the seeker 102 of sheath core 100, the outside of construction section 107 and implantation instrument fixing head 103, aortic valve replacement device 400 is sleeved on the construction section 207 of sheath core, whole aortic valve replacement device 400 section of being inflated 201 compressions, and tube wall thickening layer 108 is roughly positioned at the prosthetic valve of aortic valve replacement device with upper part, compare (Figure 13) with the existing induction system that is not provided with tube wall thickening layer, owing to not being provided with tube wall thickening layer, between aortic stents 401 positions and sheath core 500, present more loose rare space, unsettled 600 obvious between the bar portion 4041 of the latch fitting 404 of support and sheath core 500, when crooked, easily from hanging part or sparse position, produce bending, many times can cause that discounting appears killing in sheath pipe distortion resembles.And tube wall thickening layer of the present utility model has just in time been filled above-mentioned gap, between implantation instrument 400 and sheath core, closely cooperate, effectively prevented that induction system from occurring discounting phenomenon in this position when turning, greatly reduce after sheath pipe gives a discount and cause apparatus discharge/to reclaim unsuccessfully, the fracture of sheath pipe enhancement Layer is stung out and is waited the risk that patient is caused to life danger.
After aortic valve replacement device has loaded, by induction system together with aortic valve replacement device along the seal wire track having established, be delivered to valve implantation site.General first from femoral artery puncture, through ventral aorta, descending aorta, then through aortic arch, drive in the wrong direction and to the aortic valve position of aortic root, carry out the displacement of valve.In whole process, doctor makes it along seal wire, advance by joystick pushing sheath tube and sheath core, although the vascular system winding complex of human body, but sheath pipe self has good compliance, can adaptive adjustment bending direction, to comply with the vascular system of human body, advance forward, because the crooked tension force of sheath pipe is outside, sheath pipe nestles up all the time blood vessel wall and advances (as Figure 15, shown in Figure 16), aortic arch is that sheath pipe far-end arrives implantation site by last macrobending of going through, in body due to sheath pipe, be provided with reinforcement, located the wrap direction of body, when the far-end process aortic arch of sheath pipe, the adaptive vertical line direction bending at two reinforcement lines of sheath pipe meeting, after passing aortic arch, the far-end of sheath pipe (is provided with two traction fibers and two reinforcements with body as shown in figure 17 at endovascular state, on body cross section, it is illustration meaning that the center angle of any traction fiber and reinforcement is 90 °), visible sheath pipe 200 is near blood vessel wall 301, and traction fiber 209 is over against the center of blood vessel, be that the flexible direction of sheath pipe is over against the center of blood vessel, now, directly affect traction fiber 209, as shown in figure 18, sheath pipe is just easy to vasotropic center and moves (M direction), continue to promote sheath pipe and sheath core, just can make it pass the valve center O of aortic valve 302, now, sheath pipe is moved to the direction away from seeker, aortic valve replacement device can be discharged to (as shown in figure 19), after aortic valve replacement device discharges completely, reclaim sheath core, sheath pipe, the aortic valve replacement device spreading under body temperature effect discharging, be fixed on implantation site, substitute autologous valve functionating.
Claims (12)
1. a sheath core of carrying for intervention apparatus, comprise core pipe, the far-end of described core pipe is fixed with seeker and intervention apparatus fixing head, the position of described core pipe between seeker and implantation instrument fixing head is for placing the construction section of implantation instrument, it is characterized in that, the periphery of described construction section is provided with tube wall thickening layer.
2. the sheath core of carrying for intervention apparatus as claimed in claim 1, is characterized in that, described tube wall thickening layer and construction section is one-body molded or fixed cover is located at the outside of construction section.
3. the sheath core of carrying for intervention apparatus as claimed in claim 1, is characterized in that, at least one end of described tube wall thickening layer is the taper that external diameter reduces gradually.
4. the sheath core of carrying for intervention apparatus as described in claim 1～3 any one, is characterized in that, the periphery of described seeker is provided with for stopping the radial convex loop of sheath end surfaces.
5. the sheath core of carrying for intervention apparatus as claimed in claim 4, is characterized in that, the height of described radial convex loop is 1.5～2.5mm.
6. an induction system, is characterized in that, comprises sheath pipe, is placed in the sheath core of carrying for intervention apparatus as described in claim 1～5 any one in described sheath pipe.
7. induction system as claimed in claim 6, it is characterized in that, described sheath pipe comprises the body with far-end and near-end, in the tube wall of described body, be provided with vertically reinforcement and traction fiber, described traction fiber can slide in body, and the far-end of this traction fiber is fixed on the far-end of described body.
8. induction system as claimed in claim 7, it is characterized in that, described sheath pipe also comprises the expansion arc being connected with described body far-end, between described expansion arc and body, by the changeover portion thickening, be connected, and the outer wall of this changeover portion and described expansion arc and body all seamlessly transit, the far-end of described reinforcement and the remote extension of traction fiber are fixed in this changeover portion.
9. induction system as claimed in claim 7 or 8, is characterized in that, described traction fiber is one, and described reinforcement is one, and on the arbitrary section of body, the center angle of reinforcement and traction fiber is 30～150 °.
10. induction system as claimed in claim 7 or 8, it is characterized in that, described reinforcement is one, described traction fiber is two, two traction fibers are distributed in the both sides of reinforcement and body axis line radially, on the arbitrary section of body, the center angle of reinforcement and any traction fiber is 30～150 °.
11. induction systems as claimed in claim 7 or 8, is characterized in that, described traction fiber is one, described reinforcement is two, article two, reinforcement is in the axle center offside of described body, and on the arbitrary section of body, the center angle of any reinforcement and traction fiber is 30～150 °.
12. induction systems as claimed in claim 7 or 8, it is characterized in that, described traction fiber is two, described reinforcement is two, described traction fiber and reinforcement are upwards spaced apart in the week of body, article two, reinforcement is in the axle center offside of described body, and on the arbitrary section of body, any reinforcement and wherein the center angle of a traction fiber are 30～150 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320547438.2U CN203506934U (en) | 2013-09-04 | 2013-09-04 | Sheath core for conveying interventional instrument and conveying system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320547438.2U CN203506934U (en) | 2013-09-04 | 2013-09-04 | Sheath core for conveying interventional instrument and conveying system with same |
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| Publication Number | Publication Date |
|---|---|
| CN203506934U true CN203506934U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320547438.2U Withdrawn - After Issue CN203506934U (en) | 2013-09-04 | 2013-09-04 | Sheath core for conveying interventional instrument and conveying system with same |
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| CN (1) | CN203506934U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103431926A (en) * | 2013-09-04 | 2013-12-11 | 杭州启明医疗器械有限公司 | Sheath-core for conveying interventional device and conveying system with sheath-core |
| CN110151357A (en) * | 2019-06-27 | 2019-08-23 | 深圳市创心医疗科技有限公司 | Support system and intravascular stent |
| CN110799130A (en) * | 2017-05-04 | 2020-02-14 | 杭州安杰思医学科技股份有限公司 | End effector, transport device, and mounting box |
-
2013
- 2013-09-04 CN CN201320547438.2U patent/CN203506934U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103431926A (en) * | 2013-09-04 | 2013-12-11 | 杭州启明医疗器械有限公司 | Sheath-core for conveying interventional device and conveying system with sheath-core |
| WO2015032292A1 (en) * | 2013-09-04 | 2015-03-12 | 杭州启明医疗器械有限公司 | Sheath-core for delivering interventional device and delivery system comprising same |
| CN103431926B (en) * | 2013-09-04 | 2015-09-30 | 杭州启明医疗器械有限公司 | For intervention apparatus conveying sheath core and there is the induction system of this sheath core |
| CN110799130A (en) * | 2017-05-04 | 2020-02-14 | 杭州安杰思医学科技股份有限公司 | End effector, transport device, and mounting box |
| CN110799130B (en) * | 2017-05-04 | 2023-09-15 | 杭州安杰思医学科技股份有限公司 | End effector, delivery device, and cartridge |
| CN110151357A (en) * | 2019-06-27 | 2019-08-23 | 深圳市创心医疗科技有限公司 | Support system and intravascular stent |
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