CN208582455U - Delivery sheath and transportation system - Google Patents
Delivery sheath and transportation system Download PDFInfo
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- CN208582455U CN208582455U CN201720802310.4U CN201720802310U CN208582455U CN 208582455 U CN208582455 U CN 208582455U CN 201720802310 U CN201720802310 U CN 201720802310U CN 208582455 U CN208582455 U CN 208582455U
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- sheath
- delivery sheath
- diaphragm seal
- proximal end
- pedestal
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Abstract
Transportation system disclosed by the utility model includes delivery sheath, expander and driving means with delivery sheath cooperation, in which: delivery sheath proximal end is provided with sheath pedestal, and diaphragm seal is provided in sheath pedestal, and sheath pedestal proximal end is provided with first fixed structure；Expander is provided with the first tight locking button, and the first tight locking button is provided with the second fixed structure with first fixed structure cooperation, and the first tight locking button and sheath base engagement make expander be locked in sheath pedestal proximal end.Driving means includes loader and push wirerope, and loader is provided with the second tight locking button, and the second tight locking button is provided with the second fixed structure with first fixed structure cooperation, and the second tight locking button and sheath base engagement make loader lock onto sheath pedestal proximal end.Compared with the prior art, it is connected firmly between the utility model component, and sealing effect is good.
Description
Technical field
The utility model relates to medical instruments fields, more particularly, to a kind of delivery sheath and transportation system.
Background technique
Atrial fibrillation is one of most common arrhythmia cordis, almost sees all organic heart diseasies.The incidence of atrial fibrillation exists
It is 0.4%~2.0% in general population, age every increase by 10 years old, disease incidence increases by 1.4 times, atrial fibrillation in 75 years old or more crowd
Account about 6%~10%.Studies have shown that atrial fibrillation is the independent hazard factor that apoplexy occurs, 15% or more cerebral apoplexy is by atrial fibrillation
Cause, 90% or more the embolus of non-valvular atrial fibrillation occurs at left auricle of heart (LAA).Therefore it is directed to the research of atrial fibrillation embolic complications
It is increasingly valued by people, the generation for how preventing atrial fibrillation cerebral apoplexy has important clinical meaning.For atrial fibrillation embolism
Complication, main treatment method are that atrial fibrillation anticoagulant therapy and surgical intervention prevent embolism.Although Anticoagulation of Warfarin prevents
The curative effect affirmative that atrial fibrillation cerebral apoplexy occurs, but the clinical application rate of warfarin is low, only 1/3 have the patients with atrial fibrillation of anticoagulant indication by
When take warfarin according to quantity.Anticoagulant therapy is for quite a few patient especially highest the elderly of atrial fibrillation disease incidence, often
Because can not therefrom benefit there are hemorrhagic tendency and there are the anticoagulant contraindication such as bleeding, and surgical intervention prevention embolism is straight
It sees lower progress surgical operation and repairs defect.This surgical effect is bad and wound is big, there is certain disability rate and the death rate.2001
Year, u s company has developed a kind of occluder for left auricle, is put into left auricle of heart by 12F conveyer and 14F outer sheath.Both devices
The conveying device of tool is to puncture atrial septum by inferior caval vein, reach left auricle of heart.
Delivery sheath and other portions of the conveying device in the prior art when conveying occluder for left auricle, in conveying device
Part is not connected firmly；Such as: expander, loader etc..When expander and delivery sheath percutaneous access blood vessel together, expander
Movement may be retreated, causes delivery sheath end to damage vascular wall, doctor need to use hand fixed expander at this time；And loader
It is inserted into delivery sheath, when pushing plugging device, loader may also be retired dynamic after the meeting, and cause plugging device to block or push difficulty,
Doctor also needs to fix loader with hand at this time.Doctor is connected between fixation member with hand, and operation is not convenient enough.In addition to this, existing
Have the delivery sheath in technology, in most of sealing device be silica gel material diaphragm seal, used diaphragm seal is most
Number be it is circular, central incision has cross or linear type；This sealing device can have leakage blood in varying degrees when in use
Situation.
Utility model content
The technical problem to be solved by the present invention is in view of the drawbacks of the prior art, provide and connect between a kind of component
Securely, and the good transportation system of sealing effect.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of delivery sheath is provided, the conveying
Sheath proximal end is provided with sheath pedestal, and diaphragm seal is provided in the sheath pedestal, and sheath pedestal proximal end is provided with first
Fixed structure.
The first fixed structure is external screw thread in one of the embodiments,.
The sheath pedestal includes base body and the envelope that be located in base body proximal end in one of the embodiments,
Lid, the external screw thread are set on the proximal end outer wall of the capping.
The diaphragm seal is set between the base body and the capping in one of the embodiments,.
Two prominent sides of the diaphragm seal and the capping inner wall Interference contact in one of the embodiments,；It is described close
There is gap between two parallel sides of mounting and the capping inner wall.
The maximum distance of the prominent side of the diaphragm seal two is 10 to 11 millimeters in one of the embodiments,；The sealing
The maximum distance of two parallel sides of piece is 9.2 to 9.6 millimeters.
The "-" type incision length is 2 to 4 millimeters in one of the embodiments,.
The utility model additionally provides a kind of transportation system, comprising: the expansion of delivery sheath and delivery sheath cooperation
Device and driving means, wherein the expander is provided with the first tight locking button, and first tight locking button is provided with and described first
Second fixed structure of fixed structure cooperation, the dilator distal end may pass through the delivery sheath, first tight locking button with
The sheath base engagement makes the expander be locked in sheath pedestal proximal end；
The driving means includes that loader and push wirerope, the loader are provided with the second tight locking button, and described the
Two tight locking buttons are provided with the second fixed structure, and the push wirerope may pass through the loader and delivery sheath, and described second
Tight locking button and the sheath base engagement make the loader be locked in sheath pedestal proximal end.
Delivery sheath proximal end is provided with sheath pedestal, and diaphragm seal is provided in the sheath pedestal, and the sheath pedestal is close
End is provided with first fixed structure.
Second fixed structure is internal screw thread in one of the embodiments,.
The dilator distal end is tip in one of the embodiments,.
Transportation system provided by the utility model includes delivery sheath, the expander cooperated with the delivery sheath and pushes away
Device is sent, wherein delivery sheath proximal end is provided with sheath pedestal, and diaphragm seal, the sheath pedestal are provided in the sheath pedestal
Proximal end is provided with first fixed structure, and expander is provided with the first tight locking button, and the first tight locking button is set to and first fixed structure
Second fixed structure of cooperation, the driving means include that loader and push wirerope, the loader are provided with the second lock
It links closely.Compared with the prior art, when in use, expander and loader can pass through tight locking button to the utility model transportation system
It is fastenedly connected, is prevented in surgical procedure with delivery sheath, the movement of each component of transportation system, doctor need not use hand in operation
Fixed entire transportation system, improves the convenience and safety of operation, while diaphragm seal is provided in delivery sheath, can
It is effectively prevent gas leakage in surgical procedure, leaks the generation of blood.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the structural schematic diagram of the delivery sheath for the transportation system that an embodiment of the present invention provides；
Fig. 2 is the partially enlarged cross-sectional view at the A in Fig. 1；
Fig. 3 is the structural schematic diagram of the diaphragm seal of the delivery sheath in Fig. 1；
Fig. 4 is the structural schematic diagram of the expander for the transportation system that an embodiment of the present invention provides；
Fig. 5 is the structural schematic diagram of the loader for the transportation system that an embodiment of the present invention provides；
Fig. 6 is the structural schematic diagram of the push wirerope for the transportation system that an embodiment of the present invention provides；
Fig. 7 is the assembled state schematic diagram of an embodiment of the present invention loader and delivery sheath；
Fig. 8 is the structural schematic diagram of the driving means for the transportation system that an embodiment of the present invention provides；
Fig. 9 is the assembled state signal of the transportation system driving means that an embodiment of the present invention provides and delivery sheath
Figure.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed
Illustrate specific embodiment of the present utility model.
In order to clearly describe the structure of the utility model, the noun of locality, the orientation are used as using " distal end ", " proximal end "
Word is interventional medical device field common terminology, wherein " distal end " indicates one end in surgical procedure far from operator, " proximal end "
Indicate one end that proximal operator is depended in surgical procedure.The axial direction refers to that being parallel to medical instrument distal center and proximal hub connects
The direction of line；The radial direction refers to perpendicular to above-mentioned axially direction.
Also referring to Fig. 1 to Fig. 9, the transportation system that an embodiment of the present invention provides includes delivery sheath 10, with
The expander 20 and driving means 50 that delivery sheath 10 matches, driving means 50 include loader 30 and push wirerope
40。
Delivery sheath 10 includes lumen 11, sheath pedestal 12, connection hose 17, triple valve 18.11 proximal end of lumen and sheath
12 distal end of pedestal is connected, and connection hose 17 connects triple valve 18 and sheath pedestal 12, is provided with sealing in sheath pedestal 12
Piece 16.Sheath pedestal 12 includes base body 13 and the capping 14 that be located in 13 proximal end of base body, the setting of 14 proximal ends of capping
There is cylindrical connector 141, the proximal end of 141 outer wall of connector is provided with external screw thread.
Expander 20 is matched with delivery sheath 10, is used for subcutaneous puncture, when in use, expander 20 and delivery sheath 10
It is connected, the first tight locking button 22 on expander 20 positioned at proximal end is connected to the sheath pedestal 12 positioned at 10 proximal end of delivery sheath,
There is internal screw thread on first tight locking button 22.The sheath 21 of expander 20 is inserted into the lumen of delivery sheath 10 by sheath pedestal 12
In 11, while by screwing the first tight locking button 22 on expander 20, so that the first tight locking button 22 is fixed on 14 proximal ends of capping
With on externally threaded connector 141, expander 20 can be realized and be fixedly connected with delivery sheath 10, the distal end of expander 20 is worn
Enter the lumen 11 of delivery sheath 10, and is pierced by from the distal end of delivery sheath 10.
It is understood that in other embodiments, connection between the first tight locking button 22 and sheath pedestal 12 can also be with
It is not the relationship being threadedly coupled, it can also be using a variety of connection types such as buckle, interference.
After the completion of subcutaneous puncture, the first tight locking button 22 is screwed, can be released between expander 20 and delivery sheath 10
Locking, so that expander 20 be withdrawn from from delivery sheath 10.
Further, also referring to Fig. 8 and Fig. 9, by 50 distal end of implantation material (not shown) and driving means to be implanted
Connection, and driving means 50 is connected with delivery sheath 10.Driving means 50 includes loader 30 and push wirerope 40, pushes steel
40 distal end of cable passes through loader 30.Please again together refering to Fig. 5 and Fig. 6, wherein loader 30 includes sheath 32 and is set to
Second tight locking button 31 of 32 distal end of sheath and the first in command 33 and second handle 34,30 proximal end of loader are additionally provided with outer spiral shell
Line 35.Push wirerope 40 includes pipe sleeve 43 and the knob that the pedestal 41 of 43 proximal end of pipe sleeve is arranged in and is arranged on pedestal 41
42, current location can be locked in for pipe sleeve 43 by screwing knob 42.
Also referring to Fig. 5 to Fig. 8, when completion subcutaneous puncture, and by expander 20 after being withdrawn from delivery sheath 10,
Loader 30 is connected with delivery sheath 10, and implantation material to be implanted is fixed on push wirerope 40, pushes wirerope
40 may pass through the loader 30 and delivery sheath 10, and similar with 22 structure of the first tight locking button is provided on loader 30
Two tight locking buttons 31 are again provided with internal screw thread on second tight locking button 31, by screwing the second tight locking button 31, by loader 30 with it is defeated
It send the connector 141 of the proximal end of the capping 14 in sheath 10 to be fastenedly connected, so that loader 30 is lock onto the sheath pedestal 12 close
End, to complete the implantation to implantation material by push wirerope 40.
In the utility model embodiment, loader 30 or expander 20 enter human body blood after being connected with delivery sheath 10
Guan Zhonghou can be fastenedly connected, therefore due to being provided with tight locking button on loader 30 and expander 20 with delivery sheath 10
It can be avoided expander 20 or loader 30 move, so that doctor does not need to be mentioned with hand come the connection between fixation member
The high safety of operation.
Further, also referring to Fig. 1 to Fig. 3, sheath pedestal 12 is internally provided with the diaphragm seal 16 for sealing, close
The proximal face of base body 13 is arranged in mounting 16, and when capping 14 is buckled in base body 13, diaphragm seal 16 can
Pad is between capping 14 and base body 13.In the present embodiment, diaphragm seal 16 uses elastic material, such as silica gel etc..
It is interference fit radially between diaphragm seal 16 and capping 14 in the utility model embodiment, when capping 14
When being buckled in base body 13,14 inner walls of capping can squeeze diaphragm seal 16.Since 14 sections of capping are circle, work as capping
After 14 pairs of diaphragm seals 16 squeeze, it can generate more uniformly towards the pressure in the center of circle, so that diaphragm seal 16 cuts button sealing.
In transportation system provided in this embodiment, diaphragm seal 16 is provided with "-" type notch 161, the length of notch in the center point
Degree is 2-4 millimeters, it is preferred that in the present embodiment, 161 Design of length of notch is 3 millimeters.In the present embodiment, diaphragm seal 16 has
Opposite parallel sides 163 and opposite protrusion side 162, in the present embodiment, prominent side 162 is designed arc-shaped appearance.It, can in production
Diaphragm seal 16 symmetrically to be cut at circle in the opposite two sides of circular diaphragm seal 16 by Mold Making first,
To form shape as shown in Figure 3, thus two parallel sides 163 of two parts being cut as diaphragm seal 16.Other two
Two prominent sides 162 of a part not being cut as diaphragm seal 16, wherein the prominent side 162 of two of diaphragm seal 16 is most
It is greater than the maximum distance of two parallel sides 163 at a distance.
In the present embodiment, the maximum distance of the prominent side 162 of two of diaphragm seal 16 is 10-11 millimeters, most long distance here
From referring to, the linear distance between the point of contact of two prominent sides 162, further, two parallel sides 163 of diaphragm seal 16 are most
Refer to vertical range between two parallel sides 163 at a distance, in the present embodiment, two parallel sides 163 of diaphragm seal 16 are most
Remote is 9.2-9.6 millimeters.
The prominent side 162 of the two of the diaphragm seal 16 and 14 inner wall Interference contacts of the capping；The two of the diaphragm seal 16 are flat
There is gap between 14 inner walls of row side 163 and the capping.Specifically, after capping 14 be located in base body 13, sealing
Interference contact between piece 16 and capping 14, Interference contact here refers to, after capping 14 be located in base body 13, capping
14 inner wall squeezes 16 edge of diaphragm seal.
By in this present embodiment, since diaphragm seal 16 has the opposite farther away prominent side 162 of distance and is closer
Parallel sides 163, after capping 14 be located in base body 13, cover 14 inner wall can squeeze the distance of diaphragm seal 16 compared with
Remote two prominent sides 162, and since two parallel sides, 163 distance of diaphragm seal 16 is closer, the inner wall of capping 14 with
There is a fixed gap between two parallel sides 163.16 the center point of diaphragm seal offers "-" type notch, after thering is component to pass through, with
Capping 14 be located in base body 13,14 inner walls of capping can squeeze two prominent sides 162 of diaphragm seal 16, thus diaphragm seal
16 receive squeeze after can generate centripetal force, to guarantee the airtightness of a word notch, at this time the two of diaphragm seal 16 parallel sides
163 with capping 14 due to not contacting directly, and there are gaps between 14 inner walls of diaphragm seal 16 and capping, since diaphragm seal 16 is
Elastic material has certain elasticity, when two prominent sides 162 of diaphragm seal 16 are by the extruding for covering 14 inner walls, diaphragm seal 16
Can stress deformation, thus whole mobile towards the gap between 14 inner walls of two parallel sides 163 and capping, thus dispersed extruding force into
One step ensure that airtightness.
Further, in the utility model embodiment, since diaphragm seal 16 includes two opposite parallel sides 163 and two-phase
Pair protrusion side 162, and cover 14 with base body 13 when fastening, two prominent sides of 14 inner walls of capping and diaphragm seal 16
162 interference fits, two parallel sides, 163 clearance fit with diaphragm seal 16, therefore when two prominent 162 stress of side, diaphragm seal 16
Whole to generate deformation, two parallel sides 163 are expanded between gap, are squeezed power so as to disperse entire diaphragm seal 16, prevent
When diaphragm seal 16 is squeezed power, "-" type notch 161 thereon is squeezed the effect of power, is extruded through the device of notch
Part makes "-" type notch 161 turn up so as to cause incision with the device excessive contact passed through, and then when device withdraws from a word
After type notch 161, the "-" type notch 161 of diaphragm seal 16 is difficult to restore shape, so that airtightness is poor, and then causing ought be again
When being inserted into driving means 50, transportation system airtightness is poor, and there are security risks for operation.
Further, as shown in figure 4, in the utility model embodiment, as long as expander 20 is used for human body subcutaneous puncture,
Distal end is tip, and when in use, 20 distal end of expander is pierced by from the distal end of delivery sheath 10, and tip is used for subcutaneous puncture, more
Add convenient and efficient.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (9)
1. a kind of delivery sheath, it is characterised in that: the delivery sheath proximal end is provided with sheath pedestal, sets in the sheath pedestal
It is equipped with diaphragm seal, "-" type notch is provided on the diaphragm seal, the diaphragm seal is with two opposite parallel sides and relatively
Two prominent sides, the sheath pedestal includes capping, the inner wall Interference contact of the two of the diaphragm seal prominent sides and the capping；
There is gap between two parallel sides of the diaphragm seal and the inner wall of the capping.
2. delivery sheath according to claim 1, which is characterized in that sheath pedestal proximal end is provided with external screw thread.
3. delivery sheath according to claim 2, which is characterized in that the sheath pedestal further includes base body, described
Capping be located in the base body proximal end, and the external screw thread is set on the proximal end outer wall of the capping.
4. delivery sheath according to claim 3, which is characterized in that the diaphragm seal is set to the base body and institute
It states between capping.
5. delivery sheath according to claim 3, which is characterized in that the maximum distance of the prominent side of the diaphragm seal two is 10
To 11 millimeters；The maximum distance of two parallel sides of the diaphragm seal is 9.2 to 9.6 millimeters.
6. delivery sheath according to claim 1, which is characterized in that the "-" type incision length is 2 to 4 millimeters.
7. a kind of transportation system, it is characterised in that: including delivery sheath described in the claims 1 and the delivery sheath
The expander and driving means of cooperation, sheath pedestal proximal end are provided with external screw thread, wherein the expander is provided with
One tight locking button, first tight locking button are provided with the second fixed structure with external screw thread cooperation, and the dilator distal end can
Across the delivery sheath, first tight locking button and the sheath base engagement make the expander be locked in the sheath
Tube bottom seat proximal end；
The driving means includes loader and push wirerope, and the loader is provided with the second tight locking button, second lock
It links closely and is provided with the second fixed structure, the push wirerope may pass through the loader and delivery sheath, second locking
Button makes the loader be locked in sheath pedestal proximal end with the sheath base engagement.
8. transportation system according to claim 7, which is characterized in that second fixed structure is internal screw thread.
9. transportation system according to claim 7, which is characterized in that the dilator distal end is tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720802310.4U CN208582455U (en) | 2017-07-04 | 2017-07-04 | Delivery sheath and transportation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720802310.4U CN208582455U (en) | 2017-07-04 | 2017-07-04 | Delivery sheath and transportation system |
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| Publication Number | Publication Date |
|---|---|
| CN208582455U true CN208582455U (en) | 2019-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720802310.4U Active CN208582455U (en) | 2017-07-04 | 2017-07-04 | Delivery sheath and transportation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109199501A (en) * | 2017-07-04 | 2019-01-15 | 先健科技(深圳)有限公司 | Delivery sheath and transportation system |
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2017
- 2017-07-04 CN CN201720802310.4U patent/CN208582455U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109199501A (en) * | 2017-07-04 | 2019-01-15 | 先健科技(深圳)有限公司 | Delivery sheath and transportation system |
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