CN210384112U - Three-jaw recovery device for taking out vena cava filter - Google Patents
Three-jaw recovery device for taking out vena cava filter Download PDFInfo
- Publication number
- CN210384112U CN210384112U CN201920431689.1U CN201920431689U CN210384112U CN 210384112 U CN210384112 U CN 210384112U CN 201920431689 U CN201920431689 U CN 201920431689U CN 210384112 U CN210384112 U CN 210384112U
- Authority
- CN
- China
- Prior art keywords
- wire rope
- vena cava
- steel wire
- elastic steel
- cava filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
A three-jaw recovery device for taking out a vena cava filter comprises three catching hooks, an elastic steel wire rope, a catheter, a tearable sheath and a torsion control device; one end of the elastic steel wire rope is a free end, and the other end of the elastic steel wire rope is connected with the torsion control device; the free end of the elastic steel wire rope is divided into the three catching hooks; the guide pipe is sleeved on the elastic steel wire rope, and the tearable sheath is sleeved on the guide pipe. The end part of the catheter is provided with an expansion part for accommodating the three catching hooks; the diameter of the dilating portion is greater than the diameter of the catheter. The utility model discloses in utilizing elastic wire rope's rotation and withdrawal to go into the pipe, the contraction three-jaw can be caught the slope of inferior vena cava filter smoothly and lead to retrieving the hook adherence, or by the vena cava filter of retrieving hook thrombus parcel, has shortened the time that the vena cava filter took out, has improved the vena cava filter and has taken out the success rate. The utility model discloses simple structure, simple operation.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to three-jaw recovery unit for taking out vena cava filter.
Background
The use of vena cava filters can minimize the occurrence of fatal pulmonary embolism. The best choice for patients of a minor age, who have stabilized thrombi, is a removable filter, which is now well recognized by most experts and scholars. The existing vena cava filter is taken out after a recovery hook on the vena cava filter is snared by a basket guide wire ring. The filter in the middle can be smoothly taken out, but the vena cava filter is difficult to take out even can not be taken out due to the fact that the filter inclines to the wall of the recovery hook or the filter recovery hook is wrapped by thrombus after the vena cava filter is implanted, and the complications related to the vena cava filter are greatly increased because the vena cava filter is permanently placed in a human body.
At present, the clinical urgent need can be from the vena cava smoothly take out the vena cava filter of implantation, improve the vena cava filter and take out recovery unit of taking out of rate, the technical problem who also needs to solve in this technical field clinical work urgently.
Disclosure of Invention
The utility model aims to solve the technical problem that a simple structure, simple operation's three-jaw recovery unit is provided, adjustable slope filter to balanced position makes recovery hook position placed in the middle, conveniently snatchs, takes out the vena cava filter safely smoothly.
The utility model discloses a realize like this:
a three-jaw recovery device for taking out a vena cava filter comprises three catching hooks, an elastic steel wire rope, a catheter, a tearable sheath and a torsion control device; one end of the elastic steel wire rope is a free end, and the other end of the elastic steel wire rope is connected with the torsion control device; the free end of the elastic steel wire rope is divided into the three catching hooks; the guide pipe is sleeved on the elastic steel wire rope, and the tearable sheath is sleeved on the guide pipe.
Further, the end of the catheter is a flared portion for accommodating the three catching hooks; the diameter of the dilating portion is greater than the diameter of the catheter.
Further, the torsion control device comprises a base, a clamping piece and a cover cap; the elastic steel wire rope sequentially penetrates through the cover cap and the clamping piece and is fixedly connected with the base; the top of the base is provided with an external thread; the top of the clamping piece is provided with a wedge-shaped raised head, the center of the clamping piece is provided with a hole, and the clamping piece is also provided with one or more than one longitudinal slot; the inside of block is wedge cavity structure, and this cavity structure is inside to set up the internal thread, the block top is opened to be equipped with and is worn to establish the hole.
Furthermore, an anti-skid sleeve is sleeved outside the tearable sheath.
The utility model has the advantages that: under the control of the twisting control device, the wire rope is manually pulled and rotated to extend or retract the three claws, so that the vena cava filter in the vena cava is caught, and after the hook tip of any catching hook hooks the recovery hook on the filter, the wire rope can be pulled to take the vena cava filter out of the vena cava. Additionally, the utility model discloses utilize elastic wire rope's rotation, can use the three-jaw smoothly to grab the wire of catching slope, adherence, or by the vena cava filter constitution filter screen of thrombus parcel, adjustment filter position that can be convenient makes and retrieves the hook placed in the middle, has shortened the time that the vena cava filter took out, has improved the vena cava filter and has taken out the success rate. The utility model discloses more be favorable to adjusting the angle of filter, with the capture hook grasp the filter after, the angle of adjustment filter (let the hook of filter ajust), then take out with the direct capture ware that joins in marriage of filter. The utility model discloses simple structure, simple operation.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of a local structure of the present invention.
Detailed Description
As shown in fig. 1 and 2, the three-jaw recovery device for taking out the vena cava filter comprises three catching hooks 1, an elastic steel wire rope 2, a catheter 3, a tearable sheath 4 and a twisting device 5.
One end of the elastic steel wire rope 2 is a free end, and the other end is connected with the torsion control device 5. The free end of the elastic steel wire rope 5 is divided into three catching hooks 1; the elastic steel wire rope 5 is sleeved with the conduit 3, and the conduit 3 is sleeved with the tearable sheath 4; the end of the catheter 3 is flared 31 for accommodating three catching hooks 1; the diameter of the expanded portion 31 is slightly larger than the diameter of the catheter 3. The head ends of the three catching hooks 1 are hook-shaped and are scattered into claw-shaped, the tail ends of the three catching hooks are combined into one metal wire, and the three catching hooks can enter the guide pipe and are concentrated towards the center when being withdrawn, so that catching is realized. The internal diameter of expansion portion 31 is greater than the pipe other positions, forms the space that holds the capture hook, plays the limiting displacement when the capture hook withdraws.
The tearable sheath 4 is also sleeved with an anti-skid sleeve 6.
The torsion control device 5 comprises a base 51, a clamping piece 52 and a cover cap 53. The elastic steel wire rope 2 sequentially penetrates through the cap 53 and the clamping piece 52 and is fixedly connected with the base 51; the top of the base 51 is provided with an external thread 511; the top of the clamping piece 52 is provided with a wedge-shaped protruding head 521, the center of the clamping piece 52 is provided with a hole, and the clamping piece 52 is also provided with one or more than one longitudinal slot 521; the inside of the cap 53 is a wedge-shaped cavity structure, internal threads are arranged in the cavity structure, and a hole is formed in the top of the cap 53 in a penetrating mode.
The wedge-shaped raised head 521 is compressed and folded by a cavity in the cap 53, so that the elastic steel wire rope 2 is fixed, and the cap 53 is screwed with the base 51 through threads, so that the elastic steel wire rope 2 can be conveniently controlled.
Under the control of the twisting control device, the wire rope is manually pulled and rotated to capture the vena cava filter in the vena cava, and when the hook tip of any capture hook hooks the recovery hook on the filter, the wire rope can be pulled to take the vena cava filter out of the vena cava. The product can be divided into different types, and the diameter of three-paw when dispersed is suitable for inferior vena cava, and is divided into 1cm, 1.5cm, 2cm, and 2.5 cm. The utility model discloses utilize elastic wire rope's rotation, can arrest the vena cava filter of slope, adherence, or by thrombus parcel smoothly, shortened the time that the vena cava filter took out, improved the vena cava filter rate of taking out. The utility model discloses more be favorable to adjusting the angle of filter, with the capture hook grasp the filter after, the angle of adjustment filter (let the hook of filter ajust), then take out with the direct capture ware that joins in marriage of filter. The utility model discloses simple structure, simple operation.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should not be construed as departing from the scope of the present invention.
Claims (4)
1. A three-jaw retrieval device for use in removing a vena cava filter, comprising: comprises three catching hooks, an elastic steel wire rope, a catheter, a tearable sheath and a twisting control device; one end of the elastic steel wire rope is a free end, and the other end of the elastic steel wire rope is connected with the torsion control device; the free end of the elastic steel wire rope is divided into the three catching hooks; the guide pipe is sleeved on the elastic steel wire rope, and the tearable sheath is sleeved on the guide pipe.
2. A three-jaw retrieval device for use in removing a vena cava filter, according to claim 1, wherein: the end part of the catheter is provided with an expansion part for accommodating the three catching hooks; the diameter of the dilating portion is greater than the diameter of the catheter.
3. A three-jaw retrieval device for use in removing a vena cava filter, according to claim 1, wherein: the torsion control device comprises a base, a clamping piece and a cover cap; the elastic steel wire rope sequentially penetrates through the cover cap and the clamping piece and is fixedly connected with the base; the top of the base is provided with an external thread; the top of the clamping piece is provided with a wedge-shaped raised head, the center of the clamping piece is provided with a hole, and the clamping piece is also provided with one or more than one longitudinal slot; the inside of block is wedge cavity structure, and this cavity structure is inside to set up the internal thread, the block top is opened to be equipped with and is worn to establish the hole.
4. A three-jaw retrieval device for use in removing a vena cava filter, according to claim 1, wherein: an anti-skid sleeve is sleeved outside the tearable sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920431689.1U CN210384112U (en) | 2019-03-26 | 2019-03-26 | Three-jaw recovery device for taking out vena cava filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920431689.1U CN210384112U (en) | 2019-03-26 | 2019-03-26 | Three-jaw recovery device for taking out vena cava filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210384112U true CN210384112U (en) | 2020-04-24 |
Family
ID=70337139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920431689.1U Expired - Fee Related CN210384112U (en) | 2019-03-26 | 2019-03-26 | Three-jaw recovery device for taking out vena cava filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210384112U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113662704A (en) * | 2021-10-25 | 2021-11-19 | 深圳麦普奇医疗科技有限公司 | Vena cava filter catcher |
-
2019
- 2019-03-26 CN CN201920431689.1U patent/CN210384112U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113662704A (en) * | 2021-10-25 | 2021-11-19 | 深圳麦普奇医疗科技有限公司 | Vena cava filter catcher |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5329942A (en) | Method for filtering blood in a blood vessel of a patient | |
| CN103385770B (en) | temporary filter with thrombus collector | |
| CN103385744B (en) | Temporary filter with distal protector | |
| JP2003501203A (en) | Blood vessel filter drawer kit | |
| CN210384112U (en) | Three-jaw recovery device for taking out vena cava filter | |
| CN207024072U (en) | Clinical Surgery's retractor for operation | |
| WO2021089064A2 (en) | Thrombus extraction device and thrombus extraction system for aorta and branch arteries thereof | |
| CN206151498U (en) | Muscle retraction device for general surgery operations | |
| CN208464203U (en) | One kind is intravascular to take pin device | |
| CN210871883U (en) | Improved TREVO intracranial arterial thrombus and thrombus extraction integrated device | |
| CN214128630U (en) | Novel NOSES specimen extractor | |
| CN104041472A (en) | Miniature automatic fishing device | |
| CN209332374U (en) | A kind of recyclable device of intravascular filter | |
| CN112932730A (en) | Recoverable venous thrombus filter | |
| CN207755336U (en) | A kind of forceps | |
| CN213189936U (en) | Choledochoscope calculus removing device | |
| CN215130868U (en) | Recoverable venous thrombus filter | |
| CN209107345U (en) | A kind of cardiac monitoring instrument special circuit storage box device | |
| CN215228144U (en) | Thrombus taking device | |
| CN213697137U (en) | Be used for microscler foreign matter antiskid of alimentary canal to go out foreign matter pincers | |
| CN209033332U (en) | A kind of gastroenterology instrument for defecation | |
| CN216603181U (en) | Novel inferior vena cava filter taking-out device | |
| CN215384919U (en) | Sheath tube for blood flow guide bracket system | |
| CN213076091U (en) | Auxiliary device is retrieved to vena cava filter | |
| CN209284067U (en) | A kind of fish hook |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200424 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |