CN206333934U - A kind of duplicate protection push rod - Google Patents
A kind of duplicate protection push rod Download PDFInfo
- Publication number
- CN206333934U CN206333934U CN201620483743.3U CN201620483743U CN206333934U CN 206333934 U CN206333934 U CN 206333934U CN 201620483743 U CN201620483743 U CN 201620483743U CN 206333934 U CN206333934 U CN 206333934U
- Authority
- CN
- China
- Prior art keywords
- thread
- plugging device
- screw thread
- push rod
- core filaments
- 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.)
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The utility model, which provides a kind of duplicate protection push rod, includes interior core filaments; spring wrapping wire is looped around outside interior core filaments; the rear end of spring wrapping wire is connected with handle; spring wrapping wire has thread head with interior core filaments front end sleeve, and welds together, and thread head includes the circle external screw thread positioned at middle part; external screw thread is engaged with the internal thread on plugging device steel bushing; characterized in that, thread head is also included around externally threaded one circle internal thread, internal thread is engaged with the internal thread on plugging device steel bushing.The utility model is in addition to existing screw thread, also one layer outer layer protection screw thread, it is possible to achieve the dual connection with plugging device so that plugging device is stably connected in push rod.
Description
Technical field
The utility model is related to a kind of push rod for being used to convey plugging device, belongs to technical field of medical instruments.
Background technology
Existing polytype plugging device is used to treat congenital heart disease at present, and these plugging devices are all by push rod
It is transported to the ad-hoc location of patient's heart.
The push rod structure used in the operation of plugging device intervention in the market is fixed, as shown in Figure 1 including interior core filaments 2,
The spring wrapping wire 3 of the interior outside of core filaments 2 is looped around, the rear end of spring wrapping wire 3 is connected with handle 5, spring wrapping wire 3 by firm screw 4
Thread head 1 is cased with the interior front end of core filaments 2, and is welded together, during use, thread head 1 and the screw thread on plugging device steel bushing
It is screwed together.
But, in occluder, the lesion locations bending of some patients is larger, and existing thread head 1
Structure is as shown in Fig. 2 only 0.9mm thicknesses, it is possible to can be broken, and now, plugging device is not positioned over lesion safely
Position, then in this case, patient is abnormally dangerous, if not taking out the plugging device come off in time, may jeopardize patients ' lives.
The content of the invention
The technical problems to be solved in the utility model is：Plugging device is set stably to be connected in push rod.
In order to solve the above-mentioned technical problem, the technical solution of the utility model there is provided a kind of duplicate protection push rod bag
Interior core filaments are included, spring wrapping wire is looped around outside interior core filaments, the rear end of spring wrapping wire is connected with before handle, spring wrapping wire and interior core filaments
End is cased with thread head, and welds together, and thread head is included on the circle external screw thread positioned at middle part, external screw thread and plugging device steel bushing
Internal thread be engaged, it is characterised in that thread head is also included around externally threaded one circle internal thread, internal thread and plugging device steel
The external screw thread put is engaged.
The utility model is in addition to existing screw thread, also one layer outer layer protection screw thread, it is possible to achieve double with plugging device
Reconnect so that plugging device is stably connected in push rod.
Brief description of the drawings
Fig. 1 is the general structure schematic diagram of push rod；
Fig. 2 is the enlarged diagram of existing thread head in push rod；
Fig. 3 is the enlarged diagram of thread head of the present utility model in push rod；
Fig. 4 is the schematic diagram of the plugging device with steel bushing；
Fig. 5 is the schematic diagram of steel bushing.
Embodiment
To become apparent the utility model, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
As shown in figure 1, a kind of push rod structure on the whole and existing push rod that the utility model is provided are similar
Seemingly, including interior core filaments 2, the spring wrapping wire 3 of the interior outside of core filaments 2 is looped around, the rear end of spring wrapping wire 3 is connected with by firm screw 4
Handle 5, spring wrapping wire 3 is cased with thread head 1 with the interior front end of core filaments 2, and welds together.
As shown in figure 3, in the utility model, thread head 1 is included positioned at a circle external screw thread at middle part and around external screw thread
One circle internal thread.
The structure for the steel bushing on plugging device being used in combination with the utility model is interior in the middle part of steel bushing referring to Fig. 4 and Fig. 5
Screw thread is engaged with the external screw thread of thread head 1, and the external screw thread of steel bushing is engaged with the internal thread of thread head 1.
Claims (1)
1. a kind of duplicate protection push rod, including interior core filaments（2）, spring wrapping wire（3）It is looped around interior core filaments（2）Outside, spring around
Silk（3）Rear end be connected with handle（5）, spring wrapping wire（3）With interior core filaments（2）Front end is cased with thread head（1）, and it is welded on one
Rise, thread head（1）Including enclosing external screw thread positioned at the one of middle part, external screw thread is engaged with the internal thread on plugging device steel bushing, and it is special
Levy and be, thread head（1）Also include around externally threaded one circle internal thread, internal thread matches with the external screw thread on plugging device steel bushing
Close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620483743.3U CN206333934U (en) | 2016-05-25 | 2016-05-25 | A kind of duplicate protection push rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620483743.3U CN206333934U (en) | 2016-05-25 | 2016-05-25 | A kind of duplicate protection push rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206333934U true CN206333934U (en) | 2017-07-18 |
Family
ID=59298721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620483743.3U Active CN206333934U (en) | 2016-05-25 | 2016-05-25 | A kind of duplicate protection push rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206333934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113116444A (en) * | 2019-12-31 | 2021-07-16 | 先健科技(深圳)有限公司 | Embolization system |
-
2016
- 2016-05-25 CN CN201620483743.3U patent/CN206333934U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113116444A (en) * | 2019-12-31 | 2021-07-16 | 先健科技(深圳)有限公司 | Embolization system |
| CN113116444B (en) * | 2019-12-31 | 2023-01-03 | 先健科技(深圳)有限公司 | Embolization system |
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