CN202777423U - Dilator and conveying mechanism thereof - Google Patents
Dilator and conveying mechanism thereof Download PDFInfo
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- CN202777423U CN202777423U CN 201220359492 CN201220359492U CN202777423U CN 202777423 U CN202777423 U CN 202777423U CN 201220359492 CN201220359492 CN 201220359492 CN 201220359492 U CN201220359492 U CN 201220359492U CN 202777423 U CN202777423 U CN 202777423U
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- dilator
- conveying mechanism
- pipe
- core pipe
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Abstract
The utility model relates to a dilator and a conveying mechanism thereof. The dilator is mounted on the conveying mechanism, the conveying mechanism comprises a guiding head, a central tube, a core tube, an outer sheath and a loading mechanism, the dilator is sleeved on the core tube and comprises a plurality of strip-shaped supports, the dilator is loaded via the loading mechanism, deforms and can be in a folded state or a dispersion dilation state, the supports of the dilator form an approximately half ring extending outwards on one radial side of the core tube in a direction perpendicular to a blood flowing direction of a patient when the dilator is in the dispersion dilation state, and the dilator can be stored in the outer sheath in the folded state. The dilator and the conveying mechanism thereof have the advantages that the dilator can be dilated under the condition that blood flow is not stopped, risks caused by stoppage of blood flow during surgery are reduced, and the dilator has different adjustable dilation degrees; and the dilator can be conveyed conveniently and simply.
Description
Technical field
This utility model relates to the medical apparatus and instruments that a kind of Wicresoft gets involved, and refers to especially a kind of dilator for blood vessel dilating and conveying mechanism thereof.
Background technology
So-called dilator refers to narrow or occlusion site be expanded the medical instruments of placing there for keeping its lumen size in order to treat the various sufferers that caused by luminal stenosis in blood vessel or the other biological body or obturation.Dilator is implemented vasodilation by the appointed part that conveying mechanism is transported to blood vessel.
The mode that distends the blood vessels that adopts at present is that dilator is fixed on the fold spheroid of a balloon catheter, then insert together dilator and conduit in the blood vessel, arrive the position of regulation when dilator after, thereby the effect that makes the spheroid expansion reach the dilator expansion and engage with blood vessel wall, yet in the above-mentioned embodiment, spheroid is in expansion and with in the dilator expansion, also blocked blood flow, therefore need to carry out in the preoperative reduced pressure operation, if not only prolonged operating time but also blood pressure lowering smoothly can be to patient's cause danger.
The utility model content
In view of this, main purpose of the present utility model is to provide a kind of dilator and conveying mechanism thereof, expands under non-blocking blood flow condition to realize dilator, need not blood pressure lowering.
The dilator that this utility model provides and conveying mechanism thereof, described dilator is installed on the described conveying mechanism, described conveying mechanism comprises seeker, middle pipe, core pipe and epitheca pipe, described seeker is fixed on the described core pipe, described epitheca pipe box is contained on the described middle pipe and can axially moves with respect to middle pipe, described middle pipe box is contained on the described core pipe and can axially moves with respect to the core pipe, described dilator is socketed on the described core pipe in the mode that can move with respect to described core pipe, described dilator comprises many bar shaped supports that extend along the axial direction of described core pipe, described conveying mechanism also comprises the load maintainer of described dilator being implemented loading, by described load maintainer described dilator is loaded, make described dilator distortion and have the state of closing up and the dispersion expansion state, the described state that closes up refers to, on the axial direction of described core pipe, the described bar shaped support of described dilator is with described core pipe and closes up the circular tube shaped that is integrated, described dispersion expansion state refers to, on the axial direction of described core pipe, the described bar shaped support of described dilator is to be put centered by the core pipe to the rectangular dispersion shape of scattering all around, in described dispersion expansion state, the described support of described dilator is roughly half annular of stretching out to a side in the radial direction described core pipe, close up in the state described, described dilator can be contained in the described epitheca pipe by receipts.
In said structure, dilator adopts the strip-shaped bracket structure, basically can not cause obstruction to blood flow, thereby dilator is expanded under the non-blocking-up condition to blood flow, namely need not blood pressure lowering, has reduced the risk that causes because of blocking blood flow in the operation.Because dilator is contained in by receipts in the epitheca pipe of conveying mechanism carries out carrying in the blood vessel, make more convenient to operate simple again.
This utility model is preferred, described dilator is between described seeker and described middle pipe, described load maintainer comprises the spring that is positioned at described dilator two ends and makes described spring produce the drawing silk of distortion, described spring is 2 places, lay respectively between the side end of described seeker and described dilator and between the end side and described middle pipe of described dilator, one end of described drawing silk is fixed on the described conveying mechanism, and the other end connects described dilator.
The two ends of described dilator are by the effect of described spring and described drawing silk, can relative to or opposing to direction do move each other and dilator produced and be out of shape.
This utility model is preferred, described drawing silk is 1, be provided with the through hole that slides through for described drawing silk at the end near the described dilator of described seeker, one end of described drawing silk is fixed on the described epitheca pipe, the other end passes described through hole, is fixedly connected with the other end of described dilator.
Under the effect of described drawing silk, the two ends of described dilator can be made synchronous and same swing amplitude in the opposite direction.
This utility model is preferred, and the described bar shaped support of described dilator is 8, in disperseing expansion state, is semiorbicular described support and has each other the gap.
This utility model is preferred, the described support of described dilator, and the polygon of the perpendicular direction of the direction that flows to blood flow in disperseing expansion state for consisting of more than at least by three limits, and be connected in mode in relative rotation between limit and the limit.
This utility model is preferred, and being connected between described limit and the limit is hinged.
This utility model is preferred, the described support of described dilator, and the perpendicular direction of the direction with the blood flow flow direction in disperseing expansion state is trapezoidal shape, comprises the brace summer at top and the support column of both sides.
Because the support column of both sides is with respect to brace summer synchronous and same swing amplitude in the opposite direction.When dilator was expanded in blood vessel, the brace summer that can make the top was expanded under the corner dimension prerequisite about equally that remains with the support column of both sides, all the time blood vessel wall was implemented effectively to support guaranteeing.Thereby make this dilator have adjustable different degrees of expansion.
This utility model is preferred, and described brace summer has the supporting surface wider than support column.
This utility model is preferred, and described conveying mechanism also comprises the dispersion expansion that keeps dilator and the locking mechanism that closes up state.
This utility model is preferred, and described locking mechanism is used for keeping the dispersion expansion state in various degree of described dilator for realizing the continuous locking mechanism to the drawing silk.
By at conveying mechanism locking device being set, the different expanded position of dilator can being locked, thereby guaranteed the stable of dilator expansion effect.
Dilator of the present utility model and conveying mechanism thereof, be set to structure and the increase load maintainer of the polygon support of strip by dilator, dilator can be expanded under the non-blocking-up condition to blood flow, namely need not in the preoperative blood vessel to be carried out blood pressure lowering, reduced the risk that causes because of blocking blood flow in the operation, made again dilator have adjustable different degrees of expansion simultaneously.In addition, carry by dilator is received in the epitheca pipe that is contained in conveying mechanism again, make the conveying operations of dilator convenient simple.
Description of drawings
Fig. 1 represents to be in the dilator of expansion state and the structural representation of conveying mechanism thereof;
Fig. 2 represents to be in the perspective view of the dilator of expansion state;
The master that Fig. 3 represents to be in the dilator of expansion state looks sketch map;
Fig. 4 represents to be in the schematic side view of the dilator of expansion state;
The load maintainer enlarged drawing of dilator left end in Fig. 5 presentation graphs 1;
The load maintainer enlarged drawing of dilator right-hand member in Fig. 6 presentation graphs 1.
[description of symbols among the figure]
10: dilator; 11: support; 111: brace summer; 111a: supporting surface; 112: support column; 12: the end pipe; 121: through hole; 13: the end pipe; 20: conveying mechanism; 21: seeker; 211: groove; 22: middle pipe; 23: the core pipe; 24: the epitheca pipe; 25: load maintainer; 251: spring; 252: spring; 253: the drawing silk.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is elaborated.Fig. 1 is the structural representation of dilator of the present utility model and conveying mechanism thereof.For convenience of explanation, stipulate that the left side is the distal side of dilator and conveying mechanism thereof among the figure, the right side is the proximal lateral of dilator and conveying mechanism thereof among the figure.
Load maintainer 25 comprises spring 251,252 and drawing silk 253.Described spring 251,252 is 2 places, lays respectively between the end of distal side of seeker 21 and dilator 10 and between the end and middle pipe 22 of the proximal lateral of dilator 10.Concrete is: the proximal face that is positioned at dilator 10 sides at seeker 21 is provided with for the groove 211 of receiving shock mount 251, the distal side of this spring 251 is fixed on the bottom surface of groove 211, the proximal lateral of spring 251 is connected with the distal side of dilator 10, another place's spring 252 is received to be contained in the epitheca pipe 24, the distal side of this spring 252 is connected with the proximal lateral of dilator 10, and the proximal lateral of spring 252 is fixed on the distal side end face of middle pipe 22.
One end of drawing silk 253 is fixed on the near-end of epitheca pipe 24, convenient operation the person operate, end pipe 12 at the far-end of dilator 10 is provided with smooth through hole 121, and the other end of drawing silk 253 passes this through hole 121, is fixedly connected with the end pipe 13 of the near-end of dilator 10.
Dilator 10 is socketed on the core pipe 23 and with respect to the core pipe and can moves, dilator 10 (for example can comprise many, article 6 ~ 12, the bar shaped support 11 that) extends along the axial direction of core pipe 23, in the present embodiment, this bar shaped support 11 is set to 8, be provided with end pipe 12,13 in a tubular form at the two ends of 8 supports 11, this end pipe 12,13 internal diameter equate with the external diameter of middle pipe 22 roughly that greater than the external diameter of core pipe 23 and the size of its external diameter the end of support 11 is fixed on the circumferential end surfaces of end pipe 12,13.
In original state, dilator 10 is in bar shaped support 11 and concentrates the state that closes up that is close in core pipe 23 peripheries, namely, in such cases, the bar shaped support 11 that closes up and the end pipe 12,13 at these bar shaped support 11 two ends form roughly same tubulose with diameter, the dilator 10 of this moment is received to be contained in the epitheca pipe 24 of conveying mechanism 20, and to be implemented in the conveying in the blood vessel, the spring 251,252 under this kind state is in the natural length state that is not stretched.
When needing to discharge dilator 10 when conveying mechanism 20 arrival assigned addresses, remove down first the length (roughly being slightly larger than dilator 10 at the axial length that closes up under the state) of epitheca pipe 24 regulations, dilator 10 is exposed in the blood vessel, then operates drawing silk 253 and discharge dilator.
In the drawing process, the end pipe 12 of the far-end of 253 pairs of dilators 10 of drawing silk applies one towards the power of proximal lateral, because the end pipe 13 of the near-end of dilator 10 is connected with this drawing silk 253 by the end pipe 12 of far-end, therefore simultaneously the end pipe 13 of the near-end of dilator 10 has been applied the power towards the distal side, because this moment, two ends were managed 12,13 suffered power equal and opposite in directions, opposite direction, therefore under this drawing operation, the end pipe 12,13 that can make the two ends of dilator 10 simultaneously and with amplitude relatively to motion.
The end pipe 12 at two ends, 13 relatively to motor process in, bar shaped support 11 is to away from direction (the radially outer direction of the core pipe 23) expansion of core pipe 23 peripheries and form the support shape, thereby finishes the dispersion expansion of dilator 10.By the locking mechanism of operation setting at epitheca pipe 24 near-ends drawing silk 253 is locked again, make dilator 10 remain on the dispersion expansion state.The spring 251,252 that is arranged on dilator 10 two ends this moment is extended state.Because locking mechanism can be realized the continuous locking to drawing silk 253, therefore, by the drawing distance of control drawing silk 253, can control the degrees of expansion of this dilator 10, with the expansion demand in various degree of corresponding different blood vessel again.
In the dispersion expansion state of dilator 10, on the direction that antegrade blood flow flows to, owing to being the outside dispersion shape of circumferencial direction, bar shaped support 11 make bar shaped support 11 produce each other larger gap, so that blood flow can pass through smoothly, realized when carrying out the vasodilation operation, not needing to carry out in advance reduced pressure operation, thereby shortened operating time, reduced the risk of operation.On the direction perpendicular to the blood flow flow direction in this kind state, the support 11 of dilator 10 forms the trapezoidal shape support 11 that is made of three limits, two lateral support posts 112 that comprise top margin brace summer 111 and equal length, the trapezoidal shape support 11 of this trapezoidal shape support 11 and the opposite side relative with it has consisted of the hexagon support in the vertical direction that flows to blood flow together, adopt hinged between brace summer 111 and the support column 112, can relatively rotate, therefore at the two ends of dilator 10 simultaneously and with amplitude during relatively to motion, can guarantee brace summer 111 respectively and between the support column 112 of its both sides, have all the time the angle of formed objects.Again because brace summer 111 has the supporting surface 111a that be roughly parallel to blood vessel wider than support column 112, therefore can guarantee that supporting surface 111a remains the position that roughly parallels with blood vessel wall in process of expansion, to play the effect of effective support blood vessels wall.
In addition, the support column 112 of dilator 10 and brace summer 111 can adopt Ultimum Ti or elastomeric stainless steel alloy etc.
The above only is preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
For example, in the present embodiment, the bar shaped support 11 of core pipe 23 1 sides is for to have the trapezoidal of 3 limits, but is not limited to this, also can only have a limit, perhaps is set to the polygon greater than 3 limits, and the mode that increases reinforcement between limit and limit.
Have again, in the present embodiment, 10 of dilators are used for blood vessel is expanded, but are not limited to this, also can expand the overlay film frame in the blood vessel, also can be applicable to overlay film frame is carried out fenestration procedure.
Also have, in the present embodiment, drawing silk 253 is one, 2 springs 251,252 all is extension spring, one end of this drawing silk 253 is fixed on the epitheca pipe 24, the other end passes the through hole 121 of dilator 10 1 ends, be fixedly connected with the other end of described dilator 10, but be not limited to this, the drawing silk also can be 2, one in 2 springs can be Compress Spring, that is, 1 drawing silk connects an end of conveying mechanism and dilator, and other 1 drawing silk connects the other end of conveying mechanism and dilator, it is Compress Spring that 1 spring is set simultaneously, and another root spring is extension spring.
Claims (10)
1. a dilator and conveying mechanism thereof, described dilator (10) is installed on the described conveying mechanism (20), described conveying mechanism (20) comprises seeker (21), middle pipe (22), core pipe (23) and epitheca pipe (24), described seeker (21) is fixed on the described core pipe (23), described epitheca pipe (24) is sleeved on described middle pipe (22) upward and can moves axially with respect to middle pipe (22), described middle pipe (22) is sleeved on described core pipe (23) upward and can moves axially with respect to core pipe (23), it is characterized in that
Described dilator (10) is socketed on the described core pipe (23) in the mode that can move with respect to described core pipe (23),
Described dilator (10) comprises many bar shaped supports (11) that extend along the axial direction of described core pipe (23),
Described conveying mechanism (20) also comprises the load maintainer (25) of described dilator (10) being implemented loading, by described load maintainer (25) described dilator (10) is loaded, make described dilator (10) distortion and have the state of closing up and the dispersion expansion state
The described state that closes up refers to that on the axial direction of described core pipe, the described bar shaped support (11) of described dilator (10) is with described core pipe (23) and closes up the circular tube shaped that is integrated,
Described dispersion expansion state refers to that on the axial direction of described core pipe, the described bar shaped support (11) of described dilator (10) is to be put to the rectangular dispersion shape of scattering all around centered by core pipe (23),
In described dispersion expansion state, the described support (11) of described dilator (10) is roughly half annular of stretching out to a side in the radial direction described core pipe (23),
Close up in the state described, described dilator (10) can be contained in the described epitheca pipe (24) by receipts.
2. dilator according to claim 1 and conveying mechanism thereof is characterized in that,
Described dilator (10) is arranged between described seeker (21) and the described pipe (22),
The drawing silk (253) that described load maintainer (25) comprises the spring (251,252) that is positioned at described dilator (10) two ends and described spring (251,252) generation is out of shape,
Described spring (251,252) is 2 places, lays respectively between the side end of described seeker (21) and described dilator (10) and between the end side and described middle pipe (22) of described dilator (10),
One end of described drawing silk (253) is fixed on the described conveying mechanism (20), and the other end connects described dilator (10).
3. dilator according to claim 2 and conveying mechanism thereof is characterized in that,
Described drawing silk (253) is 1,
Be provided with the through hole (121) that slides through for described drawing silk (253) at the end near the described dilator (10) of described seeker (21), one end of described drawing silk (253) is fixed on the described epitheca pipe (24), the other end passes described through hole (121), is fixedly connected with the other end of described dilator (10).
4. dilator according to claim 1 and conveying mechanism thereof is characterized in that,
The described bar shaped support (11) of described dilator (10) is 8, in disperseing expansion state, is semiorbicular described support (11) and has each other the gap.
5. dilator according to claim 1 and conveying mechanism thereof is characterized in that,
The described support (11) of described dilator (10), the polygon of the perpendicular direction of the direction that flows to blood flow in disperseing expansion state for consisting of more than at least by three limits, and be connected in mode in relative rotation between limit and the limit.
6. dilator according to claim 5 and conveying mechanism thereof is characterized in that,
Being connected between described limit and the limit is hinged.
7. dilator according to claim 1 and conveying mechanism thereof is characterized in that,
The described support (11) of described dilator (10), the perpendicular direction of the direction with the blood flow flow direction in disperseing expansion state is trapezoidal shape, comprises the brace summer (111) at top and the support column (112) of both sides.
8. the described dilator of any one and conveying mechanism thereof is characterized in that according to claim 1～7,
Described brace summer (111) has the wider supporting surface (111a) of more described support column (112).
9. dilator according to claim 2 and conveying mechanism thereof is characterized in that,
Described conveying mechanism (20) also comprises the dispersion expansion that keeps described dilator (10) and the locking mechanism that closes up state.
10. dilator according to claim 9 and conveying mechanism thereof is characterized in that,
Described locking mechanism is used for keeping the dispersion expansion state in various degree of described dilator (10) for realizing the continuous locking mechanism to described drawing silk (253).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220359492 CN202777423U (en) | 2012-07-23 | 2012-07-23 | Dilator and conveying mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220359492 CN202777423U (en) | 2012-07-23 | 2012-07-23 | Dilator and conveying mechanism thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202777423U true CN202777423U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220359492 Expired - Lifetime CN202777423U (en) | 2012-07-23 | 2012-07-23 | Dilator and conveying mechanism thereof |
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| Country | Link |
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| CN (1) | CN202777423U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102895054A (en) * | 2012-07-23 | 2013-01-30 | 张学民 | Dilator and conveying mechanism thereof |
| CN103340679A (en) * | 2013-07-16 | 2013-10-09 | 东南大学 | Novel gynecological operation auxiliary system |
| CN104127211A (en) * | 2014-08-11 | 2014-11-05 | 东南大学 | Flexible human organ expander |
| CN111632255A (en) * | 2020-04-28 | 2020-09-08 | 贵州省人民医院 | Vasodilator for cardiovascular internal medicine and preparation method thereof |
| CN115317769A (en) * | 2022-09-19 | 2022-11-11 | 李冬冬 | Cardiovascular dilator |
-
2012
- 2012-07-23 CN CN 201220359492 patent/CN202777423U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102895054A (en) * | 2012-07-23 | 2013-01-30 | 张学民 | Dilator and conveying mechanism thereof |
| CN102895054B (en) * | 2012-07-23 | 2015-01-07 | 张学民 | Dilator and conveying mechanism thereof |
| CN103340679A (en) * | 2013-07-16 | 2013-10-09 | 东南大学 | Novel gynecological operation auxiliary system |
| CN103340679B (en) * | 2013-07-16 | 2015-07-08 | 东南大学 | Novel gynecological operation auxiliary system |
| CN104127211A (en) * | 2014-08-11 | 2014-11-05 | 东南大学 | Flexible human organ expander |
| CN104127211B (en) * | 2014-08-11 | 2016-02-03 | 东南大学 | Flexible human organ dilator |
| CN111632255A (en) * | 2020-04-28 | 2020-09-08 | 贵州省人民医院 | Vasodilator for cardiovascular internal medicine and preparation method thereof |
| CN111632255B (en) * | 2020-04-28 | 2022-04-29 | 贵州省人民医院 | Vasodilator for cardiovascular internal medicine and preparation method thereof |
| CN115317769A (en) * | 2022-09-19 | 2022-11-11 | 李冬冬 | Cardiovascular dilator |
| CN115317769B (en) * | 2022-09-19 | 2024-03-12 | 李冬冬 | Cardiovascular expander |
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| GR01 | Patent grant | ||
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Granted publication date: 20130313 |