CN109771112B - Connector for conveying system - Google Patents
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- CN109771112B CN109771112B CN201811497816.4A CN201811497816A CN109771112B CN 109771112 B CN109771112 B CN 109771112B CN 201811497816 A CN201811497816 A CN 201811497816A CN 109771112 B CN109771112 B CN 109771112B
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- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 238000002513 implantation Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 14
- 238000003466 welding Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 5
- 230000002792 vascular Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 210000003484 anatomy Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 208000028831 congenital heart disease Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 210000003709 heart valve Anatomy 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a connector of a conveying system, which comprises a conveying pipe, a plurality of connecting pipes and a positioning disk, wherein a first hole and a plurality of second holes are respectively formed in the positioning disk, the distal end of the conveying pipe is fixedly connected in the first hole, the proximal ends of the connecting pipes are respectively fixedly connected in the second holes, the first hole is a central hole of the positioning disk, the second holes are arranged around the first hole, a limiting structure is arranged in the second hole, and the connecting pipes are provided with positioning structures which are matched with the limiting structures when fixedly connected with the positioning disk so as to maintain the installation positions of the connecting pipes. The connector has high strength and good directivity, ensures the identity of each connecting pipe, ensures the implantation precision of the expansion bracket, and reduces the pain and the economic burden of patients.
Description
Technical Field
The invention relates to the field of conveying systems, in particular to a conveying system of an interventional medical instrument, and particularly relates to a connector of the conveying system.
Background
Along with the continuous progress of technology, percutaneous interventional technology is widely applied in the field of disease treatment, and is to interpose a catheter into a human body and place interventional medical devices (such as a vascular stent, a heart valve, a heart defect occluder, a vascular plug, a vascular filter and the like) or medicines at focus positions of the human body, so that the treatment of the disease is realized. When the interventional medical device is implanted into the heart and the arteriovenous vessels of a human body, the conveying device is required to be utilized in order to ensure that the interventional medical device accurately reaches a preset position due to the complex anatomical structure of the heart and the arteriovenous vessels of the human body.
In the prior art, the conveying device comprises a catheter, a guide wire and a pusher, wherein the catheter is guided by the guide wire, firstly reaches a preset position, after the catheter reaches the preset position, the guide wire is removed, the interventional medical instrument is taken into the catheter, the pusher is utilized to guide the interventional medical instrument to the tail end of the catheter through a channel established by the catheter, when the interventional medical instrument reaches the tail end of the catheter, the interventional medical instrument is released from the catheter, in the releasing process, if the placement position of the interventional medical instrument is poor, the interventional medical instrument needs to be recovered back into the catheter again to be released again, and finally the interventional medical instrument needs to be disconnected from the pusher.
Self-expanding stents during implantation, when an operator begins to push the stent out of the open end of the delivery sheath, the stent tends to "jump" out of the distal end of the sheath very quickly, and the outward biasing force of the stent frame tends to cause the stent to pop out of the distal end of the delivery sheath very quickly, making it difficult to deliver the stent in an accurate and controlled manner, increasing the likelihood of trauma to the patient.
To solve the above problems, referring to fig. 1, in the improvement of the conveying device, the conveying device 100 comprises a hook mechanism 10, a retracting mechanism 30 and a handle mechanism 50, the handle mechanism 50 is connected with the retracting mechanism 30, the retracting mechanism 30 is driven by the handle mechanism 50 to realize radial limit on the self-expanding stent 200, the self-expanding stent 200 is controllable in the releasing process, the hook mechanism 10 comprises a plurality of connecting pipes 101, the distal ends of the connecting pipes 101 are provided with a switch, in use, the distal ends of the connecting pipes 101 are connected with the expanding stent 200, and after the expanding stent 200 is placed, each connecting pipe 101 is separated from the expanding stent 200, so that the implantation of the expanding stent 200 is completed.
The interventional medical device needs to keep better directivity in the implantation process, but because the interventional device generally needs smaller size, the thickness of the connecting tube generally needs to be below 0.05mm, the directivity of each connecting tube is difficult to ensure under the existing process condition, and the situation of inaccurate positioning is easy to occur in the implantation process of the expansion bracket, so that secondary operation is caused, and the pain and the economic burden of a patient are increased.
Disclosure of Invention
The present invention aims to solve at least one of the problems of the prior art, and the purpose is achieved by the following technical scheme:
The invention provides a connector of a conveying system, which comprises a conveying pipe, a plurality of connecting pipes and a positioning disk, wherein a first hole and a plurality of second holes are respectively formed in the positioning disk, the distal end of the conveying pipe is fixedly connected in the first hole, and the proximal end of each connecting pipe is fixedly connected in each second hole, and the connector is characterized in that: the first holes are central holes of the positioning disc, each second hole surrounds the first holes, limiting structures are arranged in the second holes, positioning structures are arranged on the connecting pipes, and when the connecting pipes are fixedly connected with the positioning disc, the positioning structures are matched with the limiting structures so as to keep the installation positions of the connecting pipes.
The connector of the conveying system is matched with the positioning structure on the positioning disc and the positioning structure on the connecting pipe to realize circumferential limitation of the connecting pipe, so that the directivity of each connecting pipe after being fixed is effectively ensured, the implantation precision of the expansion bracket is ensured, and the pain and the economic burden of a patient are reduced.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a schematic view of a prior art implantable expandable stent for a delivery vehicle;
Fig. 2 is a schematic structural diagram of a connector according to a specific application of the present invention;
FIG. 3 is a schematic view of a connector (connecting tube bent state, excluding a fixing plate) according to the present invention;
FIG. 4 is a schematic view of a conveyor according to the present invention (with the connecting tube in a vertical position, excluding the fixed plate);
FIG. 5 is an exploded view of the conveyor shown in FIG. 4 (excluding the stationary plate);
FIG. 6 is a partial cross-sectional view of the conveyor shown in FIG. 4 (excluding the stationary plate);
FIG. 7 is an exploded view of the conveyor provided by the present invention (first embodiment, the puck is partially cut away);
FIG. 8 is a radial cross-sectional view of the carrier of the present invention with the connecting tube and the second bore separated (first embodiment having a flat surface and the cut-out communicating with the interior of the connecting tube);
FIG. 9 is a radial cross-sectional view of the carrier of the present invention with the connecting tube and the second bore separated (first embodiment having two connecting planes and the cut-out communicating with the interior of the connecting tube);
FIG. 10 is a radial cross-sectional view of the carrier of the present invention with the connecting tube and the second bore separated (first embodiment having two disconnected planes and the cut-out communicating with the interior of the connecting tube);
FIG. 11 is a radial cross-sectional view of the carrier of the present invention with the connecting tube and the second bore separated (first embodiment, having a flat surface and the cut-out not communicating with the interior of the connecting tube);
FIG. 12 is a radial cross-sectional view of the carrier of the present invention with the connecting tube and the second bore separated (first embodiment, having two connecting planes and the cut-out not communicating with the interior of the connecting tube);
FIG. 13 is a radial cross-sectional view of a carrier according to the present invention with a connecting tube and a second bore separated (first embodiment having two non-connecting planes and a cut-out not communicating with the interior of the connecting tube);
FIG. 14 is a radial cross-sectional view of the conveyor of the present invention with the connecting tube and the second bore separated (third embodiment, having two slides and two runners in communication with the interior of the connecting tube, respectively);
FIG. 15 is a radial cross-sectional view of the conveyor of the present invention with the connecting tube and the second bore separated (third embodiment, with four slides and four runners in communication with the interior of the connecting tube, respectively);
FIG. 16 is a radial cross-sectional view of the carrier of the present invention with the connecting tube and the second bore separated (third embodiment, having an elongated slot and two protrusions not communicating with the interior of the connecting tube);
FIG. 17 is a schematic view of a conveyor according to the present invention (fourth embodiment, the distal end of the connecting tube is bent, including the fixed disk);
FIG. 18 is an exploded view of the conveyor shown in FIG. 17;
FIG. 19 is a schematic view of the conveyor shown in FIG. 17 (with the connecting tube and retaining ring separated, and the retaining disk and retaining disk partially in section);
FIG. 20 is a schematic view of the conveyor shown in FIG. 17 (positioning plate and stationary plate are partially cut away)
Fig. 21 is a schematic structural view of the conveyor shown in fig. 17 (the fixed tray is partially cut away, the conveying pipe is not shown).
Reference numerals
In fig. 1: 100 is a conveying device, 10 is a hook mechanism, 101 is a connecting pipe, 30 is a retracting mechanism, 50 is a handle mechanism, and 200 is an expansion bracket;
in fig. 2 to 20:
300 is a connector and 400 is a bracket;
1 is a connecting pipe, 11 is a notch, 12 is a chute, and 13 is a bump;
2 is a positioning disk, 21 is a first hole, 22 is a second hole, 221 is a plane, 222 is a sliding block, 223 is a long groove;
3 is a conveying pipe;
4 is a fixed disk, 41 is a third hole, and 42 is a fourth hole;
And 5 is a positioning ring.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
To more clearly describe the structure of the connector, the terms "distal" and "proximal" are defined herein as commonly used in the field of interventional medical devices. Specifically, "distal" refers to the end of the procedure that is distal to the operator, and "proximal" refers to the end of the procedure that is proximal to the operator.
First embodiment:
referring to fig. 2 to 6, the present invention provides a connector 300 for an interventional medical device delivery system, which comprises a delivery tube 3, a plurality of connection tubes 1 and a positioning plate 2, wherein a first hole 21 and a plurality of second holes 22 are respectively formed in the positioning plate 2, the distal end of the delivery tube 3 is fixedly connected in the first hole 21, the proximal ends of the connection tubes 1 are respectively fixedly connected in the second holes 22, the first hole 21 is a central hole of the positioning plate 2, and the second holes 22 are arranged around the first hole 21. Specifically, the circumference formed by the centers of the second holes 22 is concentric with the first hole 21, and the delivery pipe 3 is concentrically fixed in the first hole 21. In the illustrated embodiment, the distal end of the delivery tube 3 does not protrude beyond the distal end of the puck 2, each of the connection tubes 1 is fixedly secured within each of the second apertures 22 concentrically, and the proximal end of each of the connection tubes 1 does not protrude beyond the proximal end of the puck 2.
Specifically, the positioning disk 2 is in a circular plate-shaped structure, the first hole 21 is formed in the center of the positioning disk 2, the hole center of the first hole 21 coincides with the center of the positioning disk 2, the aperture of the first hole 21 is slightly larger than the outer diameter of the conveying pipe 3, during installation, the distal end of the conveying pipe 3 is inserted through the orifice at the proximal end of the first hole 21 until the distal end of the conveying pipe 3 is flush with the orifice at the distal end of the first hole 21, the conveying pipe 3 and the first hole 21 are kept coaxially arranged, and the conveying pipe 3 is fixed inside the first hole 21; the second holes 22 are circumferentially arranged around the first hole 21, the circumference formed by the hole centers of the second holes 22 coincides with the hole center of the first hole 21, that is, the distances between the second holes 22 and the first hole 21 are equal, the aperture of each second hole 22 is slightly larger than the outer diameter of the connecting pipe 1, and when the connecting pipe is installed, the proximal ends of the connecting pipes 1 are respectively inserted through the apertures at the distal ends of the second holes 22 until the proximal ends of the connecting pipes 1 are flush with the proximal ends of the positioning disks 2, and the connecting pipes 1 are coaxially arranged with the second holes 22, so that the connecting pipes 1 are respectively fixed in the second holes 22. After the delivery tube 3 and each connecting tube 1 are connected with the positioning disc 2 respectively, the delivery tube 3 and each connecting tube 1 are arranged on two sides of the positioning disc 2 respectively, the delivery tube 3 extends towards the proximal end, and each connecting tube 1 extends towards the distal end respectively.
It should be understood that, before the above-mentioned connection pipes 1 are fixed, the direction of each connection pipe 1 needs to be adjusted to be in a direction satisfying the use direction, so that each connection pipe 1 after the fixation is completed can maintain good directionality, thereby ensuring the implantation accuracy of the stent 400.
It should be noted that, the connection manner of the conveying pipe 3 and the positioning disc 2 may be a clamping connection, a threaded connection, or a welding connection, and the preferred connection manner of this embodiment is a welding connection, and after the conveying pipe 3 is inserted into the first hole 21, the conveying pipe 3 is kept coaxial with the first hole 21, and the connection positions of the conveying pipe 3 and the positioning disc are respectively welded at the distal end and the proximal end of the first hole 21; the connection mode of the connection pipe 1 and the positioning disk 2 may be a clamping connection, a threaded connection or a welding, etc., and the preferred connection mode of this embodiment is a welding, after the connection pipe 1 is inserted into the second hole 22, the connection pipe 1 and the second hole 22 are kept coaxial, and the connection positions of the two are respectively welded at the distal end and the proximal end of the second hole 22. Through foretell connected mode, can effectively improve hookup location's intensity and stability, on the one hand can effectively guarantee each connecting pipe 1 after fixed directionality for the implantation precision of support 400 is effectively guaranteed, on the other hand avoids conveyer pipe 3 or connecting pipe 1 and positioning disk 2 separation in the use, improves the security in the use.
In addition, the connecting pipe 1 is a bendable tubular structure, and the material of the connecting pipe 1 can be nickel-titanium alloy, high polymer material or stainless steel, so that the use requirement is effectively met, the material of the conveying pipe 3 is preferably stainless steel, and the use effect and the safety in the use process can be effectively ensured through the selection of the material.
It is further understood that the second holes 22 are equally spaced around the circumference of the first hole 21. After each connecting pipe 1 is connected with each second hole 22 respectively, the stress of the positioning disc 2 is uniform, the phenomenon of stress concentration caused by unbalanced load is avoided, the stability of each connecting position is ensured, and the safety in the use process is further improved.
It should be understood that the number of the second holes 22 may be greater than the number of the connection pipes 1 or may be equal to the number of the connection pipes 1. When the number of the second holes 22 is greater than that of the connecting pipes 1, each connecting pipe 1 is fixedly connected with each second hole 22 respectively, and after the fixedly connection is completed, each connecting pipe 1 is arranged at equal intervals around the circumference of the first hole 21, so that the stress of the positioning disc 2 is ensured to be uniform, and the stability of each connecting part is ensured. When the number of the second holes 22 is equal to that of the connecting pipes 1, each connecting pipe 1 is arranged in one-to-one correspondence with each second hole 22, so that the positioning disc 2 is ensured to be stressed uniformly, and the stability and strength of connection are improved.
Further, a limiting structure is respectively arranged in the second holes 22, and a positioning structure is respectively arranged on the connecting pipe 1, so that when the connecting pipe 1 is fixedly connected with the positioning disc 2, the positioning structure is matched with the limiting structure so as to maintain the installation position of the connecting pipe 1. When the connecting pipe 1 and the positioning plate 2 are fixed, the proximal end of the connecting pipe 1 is inserted into the second hole 22, and the position of the connecting pipe 1 in the second hole 22 is kept through the cooperation of the positioning structure and the limiting structure, so that the directivity of the connecting pipe 1 can be ensured after the connecting pipe 1 and the positioning plate 2 are fixed.
It should be understood that the above-mentioned limit structure is arranged according to the direction of the connecting pipe 1 after the fixing is completed, that is, the connecting pipe 1 is inserted into the second hole 22, the limit structure and the positioning structure cooperate to position the direction of the connecting pipe 1, and the direction of the connecting pipe 1 is not required to be adjusted, so that the directivity of the connecting pipe 1 after the fixing is ensured, and meanwhile, the efficiency of the connecting pipe 1 when the positioning disc 2 is assembled can be improved.
Referring to fig. 7, further, the second hole 22 is a circular hole, at least one plane 221 penetrating through the hole opening at the distal end of the second hole 22 is disposed on the wall of the second hole 22 so as to form a limiting structure, the outer surface of the proximal end of the connecting tube 1 is provided with notches 11 with the same number as the planes 221 so as to form a positioning structure, when the connecting tube 1 is connected with the positioning disc 2, the proximal end of the connecting tube 1 is inserted into the second hole 22, and the notches 11 are matched with the planes 221 so as to limit the rotation of the connecting tube 1. Specifically, the connecting pipe 1 is of a circular pipe structure, the second hole 22 is a circular hole, after at least one plane 221 is arranged on the hole wall of the second hole 22, the radial section of the second hole 22 is a straight line and an arc line to form a closed structure, at this moment, at least one notch 11 is arranged on the outer circumferential surface of the proximal end of the connecting pipe 1, radial sectioning is carried out at the position of the notch 11 of the connecting pipe 1, the section shape of the connecting pipe 1 is consistent with the section shape of the second hole 22, when the connecting pipe 1 is connected with the positioning disk 2, the proximal end of the connecting pipe 1 is inserted into the second hole 22, the notch 11 is matched with the plane 221, so that the limit of the circumference of the connecting pipe 1 is realized, and the directivity of the fixed connecting pipe 1 is further ensured.
It should be understood that referring to fig. 8 to 13, the number of the slits 11 on the connecting tube 1 is identical to the number of the planes 221, and the stability of the connecting tube 1 after being limited by the second hole 22 is improved by limiting the connecting tube 1 in multiple positions, so that the rotation of the connecting tube 1 relative to the second hole is avoided, the positioning accuracy of the connecting tube 1 is improved, and the implantation accuracy of the bracket 400 is further effectively improved.
It should be noted that, one end of the plane 221 is communicated with the proximal end of the second hole 22, and the other end of the plane 221 is communicated with the distal end of the second hole 22, that is, the length of the plane 221 is identical to the depth of the second hole 22, and by this structure, the contact area between the notch 11 on the connecting pipe 1 and the plane 221 can be increased, so that the limiting strength of the notch 11 by the plane 221 can be improved, the rotation of the connecting pipe 1 relative to the second hole 22 is avoided, and the limiting precision of the second hole 22 to the connecting pipe 1 is improved.
Specifically, with continued reference to fig. 8 to 13, since the connection pipe 1 has a tubular structure, the notch 11 may be connected to the inside of the connection pipe 1, or the notch 11 may not be connected to the inside of the connection pipe 1. When the notch 11 is communicated with the inside of the connecting pipe 1, after the connecting pipe 1 is inserted into the second hole 22, the plane 221 in the second hole 22 supplements materials for the notch 11 position of the connecting pipe 1, so that the connecting pipe 1 forms a closed structure again, the circumferential positioning of the connecting pipe 1 is realized through the matching of the plane 221 and the notch 11, the fixing precision of the connecting pipe 1 is effectively ensured, and the directivity of the connecting pipe 1 is ensured. When the notch 11 is not communicated with the inside of the connecting pipe 1, the notch 11 is formed on the side wall body of the connecting pipe 1, the structure of the inside of the connecting pipe 1 is not affected, the influence of external factors on the inside of the connecting pipe 1 is avoided, and the trafficability of the connecting pipe 1 is ensured.
Second embodiment:
the differences between the second embodiment and the first embodiment will be described below, and the second embodiment is the same as or similar to the first embodiment and will not be described here.
Referring to fig. 16, in one embodiment, the hole wall of the second hole 22 is provided with at least one slot 223 penetrating through the hole opening at the distal end of the second hole 22 so as to form a limiting structure, the outer surface of the proximal end of the connecting tube 1 is provided with protrusions 13 with the same number as the slots 223 so as to form a positioning structure, when the connecting tube 1 is connected with the positioning disc 2, the proximal end of the connecting tube 1 is inserted into the second hole 22, and the protrusions 13 are clamped in the slots 223 so as to limit the rotation of the connecting tube 1. The length direction of the long groove 223 is consistent with the depth direction of the second hole 22, the shape of the outer surface of the bump 13 is matched with the shape of the long groove 223, when the connecting pipe 1 is fixed, the proximal end of the connecting pipe 1 is inserted into the second hole 22, so that the bump 13 slides along the long groove 223, and when the connecting pipe 1 is installed in place, the connecting pipe 1 and the second hole 22 are fixed. The limit of the connecting pipe 1 in the circumferential direction is realized through the matching of the convex blocks 13 and the long grooves 223, so that the positioning precision of the connecting pipe 1 is improved, the directivity of the fixed connecting pipe 1 is further ensured, and the requirement of actual use is met.
Referring to fig. 14 and 15, in another embodiment, a sliding block 222 is disposed on a wall of the second hole 22 so as to form a limiting structure, the outer surface of the proximal end of the connecting tube 1 is provided with sliding grooves 12 with the same number as the sliding blocks 222 so as to form a positioning structure, one end of the sliding groove 12 is communicated with the proximal end of the connecting tube 1, when the connecting tube 1 is connected with the positioning disc 2, the proximal end of the connecting tube 1 is inserted into the second hole 22, and the sliding block 222 is clamped in the sliding groove 12 so as to limit the rotation of the connecting tube 1. The length direction of the sliding block 222 is consistent with the depth direction of the second hole 22, the shape of the sliding groove 12 is matched with the shape of the sliding block 222, when the connecting pipe 1 is fixed, the proximal end of the connecting pipe 1 is inserted into the second hole 22, so that the sliding groove 12 moves relative to the sliding block 222, and when the connecting pipe 1 is installed in place, the connecting pipe 1 and the second hole 22 are fixed. The limit on the circumference of the connecting pipe 1 is realized through the matching of the sliding block 222 and the sliding groove 12, so that the positioning precision of the connecting pipe 1 is improved, the directivity of the fixed connecting pipe 1 is further ensured, and the requirement of actual use is met.
It should be noted that, since the connecting tube 1 has a tubular structure, the sliding groove 12 may be connected to the inside of the connecting tube 1, or the sliding groove 12 may not be connected to the inside of the connecting tube 1. When the sliding groove 12 is communicated with the inside of the connecting pipe 1, after the connecting pipe 1 is inserted into the second hole 22, the sliding block 222 in the second hole 22 supplements materials for the sliding groove 12 of the connecting pipe 1, the supplemented sliding block 222 enables the connecting pipe 1 to form a closed structure again, circumferential positioning of the connecting pipe 1 is achieved through cooperation of the sliding block 222 and the sliding groove 12, and therefore fixing accuracy of the connecting pipe 1 is effectively guaranteed, and directionality of the connecting pipe 1 is guaranteed. When the chute 12 is not communicated with the inside of the connecting pipe 1, the chute 12 is formed on the side wall body of the connecting pipe 1, and by the structure, on one hand, the effective positioning of the connecting pipe 1 can be realized, and the directivity of the fixed connecting pipe 1 is ensured.
Third embodiment:
The differences between the third embodiment and the first embodiment will be described below, and the third embodiment is the same as or similar to the first embodiment and will not be described here.
Specifically, referring to fig. 17 to 21, the connector 300 further includes a positioning ring 5 and a fixing plate 4 disposed at a proximal end of the positioning plate 2, wherein a third hole 41 and a plurality of fourth holes 42 are formed in the fixing plate 4, the position of the third hole 41 is disposed corresponding to the position of the first hole 21, the shape and size of the third hole 41 are consistent with those of the first hole 21, the number of the fourth holes 42 is consistent with that of the second holes 22, and each fourth hole 42 is disposed corresponding to each second hole 22; the positioning ring 5 is arranged in the fourth hole 42, the proximal end of the connecting pipe 1 passes through the second hole 22, and the proximal end of the connecting pipe 1 is fixedly connected in the positioning ring 5.
In the above structure, the fixing plate 4 is attached to the proximal end of the positioning plate 2, the third hole 41 is coaxially arranged with the first hole 21, the fourth holes 42 are coaxially arranged with the second holes 22, the positioning rings 5 are fixedly connected in the fourth holes 42, the inner diameter of the positioning rings 5 is identical to the inner diameter of the second holes 22, when the connecting pipe 1 is installed, the proximal end of the connecting pipe 1 is inserted into the second holes 22, the plane 221 on the second holes 22 is matched with the notch 11 of the connecting pipe 1, and the connecting pipe 1 is continuously inserted, so that the proximal end of the connecting pipe 1 enters the positioning rings 5, after the connecting pipe 1 is sleeved with the positioning rings 5, the positioning rings 5 are fixed with the connecting pipe 1 by welding on the side wall of the positioning rings 1 (as shown in fig. 20, the black points on the outer sides of the positioning rings 5 are welding points), and then the positioning rings 5 are inserted into the fourth holes 42 of the fixing plate 4, when the connecting pipe 1 is installed, as shown in fig. 21, the black points on the end parts of the positioning rings 5 are welding points), the inner diameter of the connecting pipe 1 is easy to be caused to be small when the wall thickness of the connecting pipe 1 is small, the connecting pipe 1 is easy to cause the inner diameter of the connecting pipe 1 to be poor, and the passing performance of the connecting pipe 1 can not be effectively guaranteed, and the passing performance of the connecting pipe 1 can not be guaranteed, and the passing performance of the connecting pipe 1 can be guaranteed, and the passing through the structure can not be effectively guaranteed. In addition, by adding the positioning ring 1, the number of welding spots can be increased, so that the connection reliability and stability of the connecting pipe 1 are improved.
Specifically, the length of the slit 11 is greater than the thickness of the fixed disk 4, and the length of the slit 11 is less than or equal to the sum of the thickness of the fixed disk 4 and the thickness of the positioning disk 2. After the connecting pipe 1 is connected and fixed through the structure, the notch 11 is completely sealed inside the positioning disc 2 and the fixing disc 4, so that the influence of the external environment on the inside of the connecting pipe 1 is effectively ensured, and the effective use of the connecting pipe 1 is further ensured.
Specifically, the height of the retainer ring 5 is less than or equal to the thickness of the fixed disk 4, and the end face of the distal end of the retainer ring 5 is flush with the end face of the distal end of the fixed disk 4. After the positioning ring 5 is installed, the far end of the positioning ring is arranged between the positioning disc 2 and the fixed disc 4, and the end face of the far end of the positioning ring 5 is flush with the end face of the far end of the fixed disc 4, so that the fitting degree between the positioning disc 2 and the fixed disc 4 can be effectively ensured, the strength of connection between the fixed disc 4 and the positioning disc 2 is further improved, meanwhile, the height of the positioning ring 5 is smaller than or equal to the thickness of the fixed disc 4, that is, the end face of the near end of the positioning ring 5 is flush with the end face of the near end of the fixed disc 4 or is concave in the fourth hole 42, the positioning ring 5 can be effectively prevented from protruding out of the positioning ring 4 through the structure, the damage of the positioning ring 5 to other working parts or human blood vessels in the implantation process of the bracket 400 is avoided, and the safety in the use process is ensured.
Compared with the prior art, the connector of the conveying system provided by the embodiment has the following beneficial effects:
1. The circumferential limit of the connecting pipe is realized through the cooperation of the limit structure on the locating disc and the locating structure on the connecting pipe, meanwhile, the axial limit of the connecting pipe is realized through the cooperation of the locating ring and the locating structure of the connecting pipe, the fixing precision of the connecting pipe is improved through the axial and circumferential limit of the connecting pipe, the directivity of each connecting pipe after fixing is effectively ensured, the implantation precision of the expansion bracket is ensured, and the pain and the economic burden of a patient are reduced.
2. The number of welding spots can be effectively increased through the positioning ring, so that the fixing strength and stability of the connecting pipe are ensured, and the influence of welding fixation on the connecting pipe is avoided through the positioning ring, so that the trafficability of the connecting pipe is ensured.
3. The structure of the connector is smooth by arranging the fixing disc, and the situation that the connector scratches tissues in the moving process due to the fact that the connector is formed with the protrusions is avoided.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a conveying system's connector, includes conveyer pipe, a plurality of connecting pipe and positioning disk, first hole and a plurality of second hole have been seted up respectively on the positioning disk, the distal end rigid coupling of conveyer pipe is in the first hole, each the proximal end of connecting pipe is rigid coupling respectively in each in the second hole, its characterized in that: the first holes are central holes of the positioning disc, each second hole surrounds the first holes, limiting structures are arranged in the second holes, positioning structures are arranged on the connecting pipes, and when the connecting pipes are fixedly connected with the positioning disc, the positioning structures are matched with the limiting structures so as to keep the installation positions of the connecting pipes.
2. The connector of a conveyor system as in claim 1 wherein: the second hole is a round hole, at least one plane communicated with the hole opening at the far end of the second hole is arranged on the hole wall of the second hole so as to form the limiting structure, the outer surface of the near end of the connecting pipe is provided with notches with the same number as the planes so as to form the positioning structure, when the connecting pipe is connected with the positioning disc, the near end of the connecting pipe is inserted into the second hole, and the notches are matched with the planes so as to limit the rotation of the connecting pipe.
3. The connector of a conveyor system as in claim 1 wherein: the hole wall of the second hole is provided with at least one long groove which is communicated with the hole opening at the far end of the second hole so as to form the limiting structure, the outer surface of the near end of the connecting pipe is provided with convex blocks with the same number as the long grooves so as to form the positioning structure, when the connecting pipe is connected with the positioning disc, the near end of the connecting pipe is inserted into the second hole, and the convex blocks are clamped in the long groove so as to limit the rotation of the connecting pipe.
4. The connector of a conveyor system as in claim 1 wherein: the wall of the second hole is provided with sliding blocks so as to form the limiting structure, the outer surface of the proximal end of the connecting pipe is provided with sliding grooves with the same number as the sliding blocks so as to form the positioning structure, one end of each sliding groove is communicated with the proximal end of the connecting pipe, when the connecting pipe is connected with the positioning disc, the proximal end of the connecting pipe is inserted into the second hole, and the sliding blocks are clamped in the sliding grooves so as to limit the rotation of the connecting pipe.
5. The connector of a conveyor system as in claim 1 wherein: the connector further comprises a positioning ring and a fixing disc arranged at the proximal end of the positioning disc, wherein a third hole and a plurality of fourth holes are formed in the fixing disc, the positions of the third holes are corresponding to those of the first holes, the shapes and the sizes of the third holes are consistent with those of the first holes, the number of the fourth holes is consistent with that of the second holes, and the fourth holes are respectively corresponding to the second holes;
the positioning ring is arranged in the fourth hole, the proximal end of the connecting pipe penetrates through the second hole, and the proximal end of the connecting pipe is fixedly connected in the positioning ring.
6. The connector of the conveyor system of claim 5, wherein: the length of the positioning structure is greater than the thickness of the fixed disc, and the length of the positioning structure is less than or equal to the sum of the thickness of the fixed disc and the thickness of the positioning disc.
7. The connector of the conveyor system of claim 5, wherein: the height of the locating ring is smaller than or equal to the thickness of the fixed disc, and the end face of the distal end of the locating ring is flush with the end face of the distal end of the fixed disc.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811497816.4A CN109771112B (en) | 2018-12-07 | 2018-12-07 | Connector for conveying system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811497816.4A CN109771112B (en) | 2018-12-07 | 2018-12-07 | Connector for conveying system |
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| CN109771112A CN109771112A (en) | 2019-05-21 |
| CN109771112B true CN109771112B (en) | 2024-05-17 |
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| US20230338175A1 (en) * | 2022-04-26 | 2023-10-26 | Accumedical Beijing Ltd. | Repositionable intracranial stent with retrieval mechanism |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102144940A (en) * | 2010-02-04 | 2011-08-10 | 微创医疗器械(上海)有限公司 | Conveying device |
| CN104116552A (en) * | 2014-08-04 | 2014-10-29 | 上海三友医疗器械有限公司 | Intervertebral fusion device and installation tool thereof |
| CN104546242A (en) * | 2014-12-02 | 2015-04-29 | 先健科技(深圳)有限公司 | Transporting device of implanting body and implanting medical instrument |
| CN104706449A (en) * | 2013-12-17 | 2015-06-17 | 微创心脉医疗科技（上海）有限公司 | Stent delivery system and later releasing assembly thereof |
| CN106264808A (en) * | 2016-08-29 | 2017-01-04 | 有研医疗器械（北京）有限公司 | One is accurately positioned esophageal stents appear induction system |
| CN106580530A (en) * | 2016-12-20 | 2017-04-26 | 有研医疗器械（北京）有限公司 | Accurate-positioning far and near-end back release film-coated support conveying system and method |
| CN106913408A (en) * | 2015-12-28 | 2017-07-04 | 先健科技(深圳)有限公司 | Induction system and intraluminal stent system |
| CN106983582A (en) * | 2011-10-21 | 2017-07-28 | 爱德华兹生命科学卡迪尔克有限责任公司 | Can active control support, stent graft, cardiac valves and its control method |
| DK2528553T3 (en) * | 2010-01-29 | 2018-01-22 | Cook Medical Technologies Llc | MECHANICAL EXPANDABLE INTRODUCTION AND DILATION SYSTEMS |
| CN108245292A (en) * | 2016-12-29 | 2018-07-06 | 先健科技(深圳)有限公司 | Conveying device and transport system |
| CN108245293A (en) * | 2018-01-22 | 2018-07-06 | 苏州恒瑞迪生医疗科技有限公司 | A kind of long size intravascular stent transport system |
-
2018
- 2018-12-07 CN CN201811497816.4A patent/CN109771112B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK2528553T3 (en) * | 2010-01-29 | 2018-01-22 | Cook Medical Technologies Llc | MECHANICAL EXPANDABLE INTRODUCTION AND DILATION SYSTEMS |
| CN102144940A (en) * | 2010-02-04 | 2011-08-10 | 微创医疗器械(上海)有限公司 | Conveying device |
| CN106983582A (en) * | 2011-10-21 | 2017-07-28 | 爱德华兹生命科学卡迪尔克有限责任公司 | Can active control support, stent graft, cardiac valves and its control method |
| CN104706449A (en) * | 2013-12-17 | 2015-06-17 | 微创心脉医疗科技（上海）有限公司 | Stent delivery system and later releasing assembly thereof |
| CN104116552A (en) * | 2014-08-04 | 2014-10-29 | 上海三友医疗器械有限公司 | Intervertebral fusion device and installation tool thereof |
| CN104546242A (en) * | 2014-12-02 | 2015-04-29 | 先健科技(深圳)有限公司 | Transporting device of implanting body and implanting medical instrument |
| CN106913408A (en) * | 2015-12-28 | 2017-07-04 | 先健科技(深圳)有限公司 | Induction system and intraluminal stent system |
| CN106264808A (en) * | 2016-08-29 | 2017-01-04 | 有研医疗器械（北京）有限公司 | One is accurately positioned esophageal stents appear induction system |
| CN106580530A (en) * | 2016-12-20 | 2017-04-26 | 有研医疗器械（北京）有限公司 | Accurate-positioning far and near-end back release film-coated support conveying system and method |
| CN108245292A (en) * | 2016-12-29 | 2018-07-06 | 先健科技(深圳)有限公司 | Conveying device and transport system |
| CN108245293A (en) * | 2018-01-22 | 2018-07-06 | 苏州恒瑞迪生医疗科技有限公司 | A kind of long size intravascular stent transport system |
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Effective date of registration: 20231228 Address after: 518000 1604, Xianjian technology building, No. 22, Keji South 12th Road, gaoxinyuan community, Yuehai street, Nanshan District, Shenzhen, Guangdong Province Applicant after: Shenzhen Jianxin Medical Technology Co.,Ltd. Address before: 518000 1st-5th Floor of Saiba Research Building, Langshan Second Road, North District of Nanshan High-tech Industrial Park, Shenzhen City, Guangdong Province Applicant before: LIFETECH SCIENTIFIC (SHENZHEN) Co.,Ltd. |
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