CN208876907U - A kind of double release sheath vena cava filter release devices - Google Patents
A kind of double release sheath vena cava filter release devices Download PDFInfo
- Publication number
- CN208876907U CN208876907U CN201721084018.XU CN201721084018U CN208876907U CN 208876907 U CN208876907 U CN 208876907U CN 201721084018 U CN201721084018 U CN 201721084018U CN 208876907 U CN208876907 U CN 208876907U
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- China
- Prior art keywords
- release
- push rod
- sheath
- filter
- epitheca
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Abstract
The utility model discloses double release sheath vena cava filter release devices, including release sheath and guide push rod, the release sheath includes sheath in discharging, the release epitheca being socketed with it, the guide push rod includes the putter grip set gradually, first push rod, second push rod, moving tube is socketed on first push rod, first push rod is provided with the first elastic slice for limiting the moving tube close to one end of the putter grip, the moving tube compresses or discharges first elastic slice along its axial-movement, first push rod is provided with several the second elastic slices being circumferentially arranged along first push rod far from one end of the putter grip, the both ends of second elastic slice are respectively fixedly connected with first push rod and the moving tube.The utility model at least have the advantage that be applicable in it is all it is double put double umbrella filters when type filter, both sides being taken singly type to be taken to discharge through stock, can be realized filter releasing position mistake or it is undesirable when recycling and secondary release.
Description
Technical field
The utility model relates to the field of medical instrument technology more particularly to a kind of double release sheath vena cava filter release dresses
It sets.
Background technique
With.Pulmonary embolism (abbreviation pulmonary embolism pulmonary embolism, PE) is due to around deep vein thrombosis
Or the thrombus breaks loose of right cardiac cavity enters pulmonary circulation, blocks pulmonary artery or its branch, and then cause a series of with pulmonary circulatory function
Clinical pathology physiological change based on obstacle, it is serious to cause to die suddenly.Studies have shown that the embolus main source for causing PE to occur
In the thrombus that limbs Deep venou or pelvic veins fall off, the 60%~90% of the source Zhan Shuanzi.It is possible thereby to be open in renal vein
A filter device is placed at place below horizontal, is intercepted the free embolus in blood, can effectively be prevented the generation of pulmonary embolism, mesh
The preceding technology is just constantly being applied to clinical treatment and is achieving very good effect.
It can be divided into according to the difference of thrombus filter retention time in vivo: permanent filter and recyclable filter.Permanently
Property filter can only be placed permanently, can not take out.But the type filter is for a long time it is possible that corresponding complication, as moved
Position, vena cave perforation, local thrombus are formed, inferior vena cava obstruction etc..Patient need to take anticoagulant for a long time simultaneously, this is to practical
Using bringing significant limitation.Recyclable filter is to start to promote and apply in the past in 10 years, can be within a certain period of time
(generally 3 months) take out from internal, the shortcomings that so as to avoid Permanent implantation filter.
Existing more than ten kinds of vena cava filter products are widely used in clinic both at home and abroad at present.But its release system is all phase
Similar single release sheath discharges system, once filter discharges and finds to need to be filled with special recycling after releasing position is undesirable
It sets and is discharged again after being reloaded into release system after being recycled, process is cumbersome and with high costs.
Utility model content
The utility model technical issues that need to address are to provide a kind of double release sheath vena cava filter release devices, are applicable in
It is all it is double put it is double take type filter, it is double put umbrella filter when singly type being taken to discharge through stock, can be realized above-mentioned filter in releasing position mistake
Recycling immediately and secondary release immediately when accidentally or undesirable.
A kind of double release sheath vena cava filter release devices of the utility model, including discharge sheath and be threaded through the release
Guide push rod in sheath, the release sheath include discharge interior sheath, with the release in sheath socket and can be with respect to its axial-movement
Epitheca is discharged, the guide push rod includes the putter grip set gradually, the first push rod for pushing the filter, is arranged in
The filter and the second push rod playing the guiding role to the filter, being socketed on first push rod can be along its axial-movement
Moving tube, first push rod is provided with close to one end of the putter grip to limit institute along the first push rod radial motion
The first elastic slice of moving tube is stated, the moving tube compresses or discharge first elastic slice, first push rod along its axial-movement
One end far from the putter grip is provided with several the second elastic slices being circumferentially arranged along first push rod, second bullet
The both ends of piece are respectively fixedly connected with first push rod and the moving tube, and the moving tube is straightened along its axial-movement or edge
Second elastic slice described in its radially outward bending.
Further, it is provided on the lateral wall of the release epitheca for the orientation and dimension measurement to the filter
Mapping ring.
Further, the one end of the release epitheca is provided with coaxial epitheca connector, the epitheca connector packet
Axially extending connecting cavity is included, is radially extended and is penetrated through the threaded connection hole of the epitheca connector surfaces externally and internally.
It further, further include that one end extends in the connecting cavity and coaxial connecting tube, the connecting tube
The clamping slot with threaded connection hole cooperation is provided on outer wall.
It further, further include locking stud, the locking stud includes that the holding set gradually adjusts circle handle, screw thread connects
Connect the threaded post of the threaded connection hole and extends to the clamping end in the clamping slot.
It further, further include the three-way connector coaxial with the connecting tube, threeway described in sheath housing in the release
Connector, the internal diameter whorl of the connecting tube are connected with three-way connector to compress sheath in the release.
According to the above aspect of the present invention, being released in filter the utility model at least has the following advantages: the utility model is double release chambers
When putting undesirable position or releasing position mistake, the secondary adjustment and secondary release of filter can be carried out immediately, without logical
Filter recyclable device discharged after recycling completely, shortens the operating time of doctor, reduces the pain sensation of patient,
Expense is also greatly lowered simultaneously；By being provided with the first elastic slice and the second elastic slice, by moving tube and the cooperation of push rod is guided to transport
Dynamic, for the first elastic slice to its position-limiting action of the moving tube, the second elastic slice is in straight condition to push the filter, bending to lock
Tight filter, recycling and adjustment position convenient for filter.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the overall structure cross-sectional view of the utility model；
Fig. 3 is that pushing away for the utility model draws finger rod structure schematic diagram；
Fig. 4 is the partial enlarged view in the utility model at Fig. 3 A；
Fig. 5 is the locking bolt structure schematic diagram of the utility model；
Fig. 6 is the connecting pipe structure cross-sectional view of the utility model；
Fig. 7 is the connection schematic diagram of the utility model release epitheca and outer pin connector.
In the figures above: 1, sheath in discharging；2, epitheca is discharged；3, putter grip；4, the first push rod；5, the second push rod；6,
Moving tube；7, the first elastic slice；8, the second elastic slice；9, mapping ring；10, epitheca connector；11, connecting cavity；12, threaded connection hole；13,
Connecting tube；14, clamping slot；15, circle handle is adjusted；16, threaded post；17, clamping end；18, three-way connector；19, two-port valve；
20, gland；21, loader.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
In conjunction with shown in Fig. 1 to Fig. 7, the utility model discloses a kind of double release sheath vena cava filter release devices, including
Release sheath and the guide push rod being threaded through in the release sheath.The release sheath includes discharging sheath 1 in interior sheath 1 and the release
Socket simultaneously can be with respect to the release epitheca 2 of its axial-movement.In the utility model, sheath 1 and the release epitheca 2 are adopted in the release
With linear-movable manner, release epitheca 2 can be greatly reduced and when moving patient incision is caused to damage.The guide push rod includes
The putter grip 3 set gradually, the first push rod 4 for pushing the filter are arranged in the filter and rise to the filter
Second push rod 5 of guiding role.Being socketed on first push rod 4 can be along the moving tube 6 of its axial-movement, first push rod
4 are provided with close to one end of the putter grip 3 and can limit the first of the moving tube 6 along 4 radial motion of the first push rod
Elastic slice 7, the moving tube 6 compress or discharge first elastic slice 7 along its axial-movement；First push rod 4 is pushed away far from described
One end of bar handle 3 is provided with several the second elastic slices 8 being circumferentially arranged along first push rod 4, second elastic slice 8
Both ends are respectively fixedly connected with first push rod 4 and the moving tube 6, and the moving tube 6 is straightened along its axial-movement or edge
Second elastic slice 8 described in its radially outward bending.At releasing position: the moving tube 6 compresses first elastic slice 7, and described
Two elastic slices 8 are straightened.By being provided with the first elastic slice 7 and second elastic slice 8, the first elastic slice 7 is to its limit of the moving tube 6
Position effect, the second elastic slice 8 are in straight condition to push the filter, bending state to lock filter, convenient for the recycling of filter
With adjustment position.
The mapping ring 9 for orientation and dimension measurement to the filter is provided on the lateral wall of the release epitheca 2,
By being provided with mapping ring 9, ideal implantation position is preferably found when being implanted into filter convenient for doctor.The release epitheca 2
One end be provided with coaxial epitheca connector 10, the epitheca connector 10 includes axially extending connecting cavity 11, radial
Extend and penetrate through the threaded connection hole 12 of 10 surfaces externally and internally of epitheca connector, the release epitheca 2 and the epitheca connector 10
Be integrally formed setting.
Described device further includes that one end extends in the connecting cavity 11 and coaxial connecting tube 13, the connecting tube
The clamping slot 14 with the threaded connection hole 12 cooperation is provided on 13 outer wall.Described device further includes locking stud, described
Locking stud includes that the holding set gradually adjusts circle handle 15, the screw thread threaded post 16 of the threaded connection hole 12 and extension in succession
Clamping end 17 in the clamping slot 14.Described device further includes the three-way connector 18 coaxial with the connecting tube 13,
Three-way connector 18 described in 1 housing of sheath in the release, the internal diameter whorl of the connecting tube 13 be connected with three-way connector 18 with
Compress sheath 1 in the release.The three-way connector 18 is also communicated with two-port valve 19 and coaxial with the three-way connector 18
Gland 20, the gland 20 are connected with the loader 21 for coaxially and being used to load the filter.The two-port valve 19 passes through
PU pipe is connect with 18 interference of three-way connector, during filter implantation, plays physiological saline injection and contrast agent injection
Effect.The guide push rod successively wears the loader 21, gland 20, three-way connector 18, connecting tube 13, epitheca connector
10, sheath 1 and release epitheca 2 in discharging.
The above is only the preferred embodiment of the utility model, is not intended to limit the utility model, it is noted that
For those skilled in the art, without deviating from the technical principle of the utility model, it can also do
Several improvements and modifications out, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (6)
1. a kind of double release sheath vena cava filter release devices are pushed away including release sheath and the guide being threaded through in the release sheath
Bar, it is characterised in that: the release sheath include discharge interior sheath, with sheath socket in the release and can be released with respect to its axial-movement
Epitheca is put, the guide push rod includes the putter grip set gradually, the first push rod for pushing the filter, is arranged in institute
The second push rod stating filter and playing the guiding role to the filter, being socketed on first push rod can be along the shifting of its axial-movement
Dynamic pipe, first push rod is provided with close to one end of the putter grip can be along described in the first push rod radial motion limit
First elastic slice of moving tube, the moving tube are compressed along its axial-movement or discharge first elastic slice, and first push rod is remote
One end from the putter grip is provided with several the second elastic slices being circumferentially arranged along first push rod, second elastic slice
Both ends be respectively fixedly connected with first push rod and the moving tube, the moving tube is straightened along its axial-movement or along it
Radially outward the second elastic slice described in bending.
2. double release sheath vena cava filter release devices according to claim 1, it is characterised in that: the release epitheca
The mapping ring for orientation and dimension measurement to the filter is provided on lateral wall.
3. double release sheath vena cava filter release devices according to claim 1, it is characterised in that: the release epitheca
One end is provided with coaxial epitheca connector, and the epitheca connector includes axially extending connecting cavity, radially extends and pass through
Lead to the threaded connection hole of the epitheca connector surfaces externally and internally.
4. double release sheath vena cava filter release devices according to claim 3, it is characterised in that: further include that one end extends
To in the connecting cavity and coaxial connecting tube, it is provided on the outer wall of the connecting tube and the threaded connection hole cooperates
Clamping slot.
5. double release sheath vena cava filter release devices according to claim 4, it is characterised in that: further include locking screw
Column, the locking stud include that holdings that sets gradually adjusts and justify handle, screw thread and the threaded post of the threaded connection hole and prolong in succession
Extend to the clamping end in the clamping slot.
6. double release sheath vena cava filter release devices according to claim 4, it is characterised in that: further include and the company
Coaxial three-way connector is taken over, three-way connector described in sheath housing in the release, the internal diameter whorl connection of the connecting tube
There is three-way connector to compress sheath in the release.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721084018.XU CN208876907U (en) | 2017-08-28 | 2017-08-28 | A kind of double release sheath vena cava filter release devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721084018.XU CN208876907U (en) | 2017-08-28 | 2017-08-28 | A kind of double release sheath vena cava filter release devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208876907U true CN208876907U (en) | 2019-05-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721084018.XU Active CN208876907U (en) | 2017-08-28 | 2017-08-28 | A kind of double release sheath vena cava filter release devices |
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| CN (1) | CN208876907U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107468373A (en) * | 2017-08-28 | 2017-12-15 | 科塞尔医疗科技（苏州）有限公司 | A kind of double release sheath vena cava filter release devices and release recovery method |
-
2017
- 2017-08-28 CN CN201721084018.XU patent/CN208876907U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107468373A (en) * | 2017-08-28 | 2017-12-15 | 科塞尔医疗科技（苏州）有限公司 | A kind of double release sheath vena cava filter release devices and release recovery method |
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