CN209392082U - A kind of telescopic bone guide of double end is to nail-fetching device - Google Patents
A kind of telescopic bone guide of double end is to nail-fetching device Download PDFInfo
- Publication number
- CN209392082U CN209392082U CN201821601624.9U CN201821601624U CN209392082U CN 209392082 U CN209392082 U CN 209392082U CN 201821601624 U CN201821601624 U CN 201821601624U CN 209392082 U CN209392082 U CN 209392082U
- Authority
- CN
- China
- Prior art keywords
- nail
- sleeve
- fetching device
- double end
- connecting rod
- 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
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- Surgical Instruments (AREA)
Abstract
The utility model belongs to medical instruments field, and in particular to a kind of telescopic bone guide of double end is to nail-fetching device.The guiding nail-fetching device includes: a connecting rod, and the both ends of connecting rod are respectively provided with a sleeve；The sleeve is hollow structure, and the forward tip of sleeve is serrated, and rear portion is connect with connecting rod；Straight annular knurl line is had on the outer wall of sleeve front.To nail-fetching device, small volume and less weight is not limited the telescopic bone guide of the double end by visual area.It can not only be used for drill guides when screw placement, also can be used as device when broken nail takes out, all provide protection to surrounding soft tissue when the two is applied.And simple process and low cost, high reliablity are practical.
Description
Technical field
The utility model belongs to medical instruments field, and in particular to a kind of telescopic bone guide of double end is to nail-fetching device.
Background technique
It is still the main way of bone surgery using the interior fixed implantation of screw.However, the bone repair time is longer,
The problems such as period growth stress, metal fatigue and cold welding, often results in screw thread feather plucking, screw deformation even fracture, makes spiral shell
Nail takes difficulty.Such case occurs frequently in the brothers position more using tiny screw, and operation will appear fracture by force, bone lacks
Damage and broken nail residual can not be taken out, and cause patient by unexpected injury, and operative failure increases conflict between doctors and patients.
The method of traditional taking-up is need in addition to use special trepan, along screw long axis direction drill, then with bottle opener,
The tools such as pliers take out screw.Traditional-handwork punches high stability, but the operating time is longer.Since trepan and nut are not
Matching, caused by duct it is very big, or even occur second fracture situations such as, secondary injury is caused to patient.
In existing follow-on nail-fetching device, one kind is after clamping screw using the assist of special designing by it
It extracts.Have a disadvantage in that: one side device bulky, discomfort are installed and used at the lesser brothers position in visual area；On the other hand
Withdrawal process necessarily destroys screw thread, and required dynamics greatly easily causes second fracture.Another kind of is to take nail to cover using special designing
Cylinder, has a disadvantage in that: needing individually or complete production is otherwise low with nut size matching degree.Both of the above is in actual use process
In, it still needs to first with similar trepan aperture, clamp screws.Therefore, it is difficult to promote.
Utility model content
The purpose of this utility model is to provide a kind of telescopic bone guides of double end to nail-fetching device, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the utility model provides the following technical solutions: a kind of telescopic bone guide of double end is to taking nail
Device includes: a connecting rod, and the both ends of connecting rod are respectively provided with a sleeve；The sleeve is hollow structure, and the forward tip of sleeve is in
Zigzag, rear portion are connect with connecting rod；Screw thread is had on the outer wall of sleeve front.
For the telescopic bone guide of double end described in the utility model to nail-fetching device, the internal diameter of the sleeve of connecting rod two end is different.Institute
It is suitable with the head diameter of bone nail to state sleeve diameter.The outer diameter at sleeve rear portion is greater than front outer diameter.
The telescopic bone guide of double end described in the utility model is to nail-fetching device, preferably length sleeve 2-5cm, length of connecting rod 8-
15cm, sleeve diameter 1.5-4.0mm.
Compared with prior art, the utility model has the beneficial effects that
(1) the telescopic bone guide of the double end is to nail-fetching device, still with manual punching, high stability when taking nail.Sleeve diameter
For head diameter, when aperture, can get maximum matching degree, protect sclerotin to greatest extent.
(2) to nail-fetching device, small volume and less weight is not limited the telescopic bone guide of the double end by visual area.It can not only be used for screw placement
When drill guides, also can be used as broken nail take out when device, the two apply when all give surrounding soft tissue provide protection.And
Simple process and low cost, high reliablity are practical.It brings great convenience to surgical, gives vast bone fracture disease patient
It brings glad tidings.
Detailed description of the invention
Fig. 1 is the telescopic bone guide of the utility model double end to nail-fetching device schematic diagram.
Fig. 2 is one end enlarged drawing of the telescopic bone guide of double end to nail-fetching device.
Specific embodiment
The telescopic bone guide of the utility model double end is to nail-fetching device as shown in 1,2, including a connecting rod 1, the both ends of connecting rod are each
Equipped with a sleeve 2；The sleeve is hollow structure, and the forward tip of sleeve is serrated, and rear portion is connect with connecting rod；Before sleeve
Screw thread is had on the outer wall in portion.
It can be fabricated to different size according to screw size, recommend:
1, length of connecting rod 8cm length sleeve 2cm sleeve diameter 1.5mm/2.2mm
2, length of connecting rod 10cm length sleeve 3.5cm sleeve diameter 2.5mm/3.2mm
3, length of connecting rod 12cm length sleeve 5cm sleeve diameter 3.5mm/4.0mm
The usage mode of the utility model double end telescopic bone guide to nail-fetching device is as follows:
It, can be directly as bit guide when setting nail.So that barrel tip is compressed bone face, holds the fixed boring direction of connecting rod.
When taking nail, need to select suitable sleeve according to head diameter first.Hand-held connecting rod makes barrel tip complete packet around spiral shell
Cap, and it is close to bone face.Hand-held connecting rod moderately pressurizes and rotates, and using tip sawtooth and surrounding Design of Screw Thread, makes sleeve front edge
Screw long axis direction smoothly shoots cortical bone around.Small-sized needle holder clamping nut is selected, screw is back-outed in rotation.It can not such as clamp
Or rotation is difficult, repeats above-mentioned steps.Until screw smoothly takes out.
Claims (5)
1. a kind of telescopic bone guide of double end is to nail-fetching device, which is characterized in that include: the both ends of a connecting rod, connecting rod are respectively provided with
One sleeve；The sleeve is hollow structure, and the forward tip of sleeve is serrated, and rear portion is connect with connecting rod；Sleeve front
Screw thread is had on outer wall.
2. the telescopic bone guide of double end according to claim 1 is to nail-fetching device, which is characterized in that the internal diameter of two sleeves is not
Together.
3. the telescopic bone guide of double end according to claim 1 is to nail-fetching device, which is characterized in that the internal diameter of the sleeve with
The head diameter of bone nail is suitable.
4. the telescopic bone guide of double end according to claim 1 is to nail-fetching device, which is characterized in that the outer diameter at sleeve rear portion is big
In front outer diameter.
5. the telescopic bone guide of double end according to claim 1 is to nail-fetching device, which is characterized in that length sleeve 2-5cm, even
Pole length 8-15cm, sleeve diameter 1.5-4.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821601624.9U CN209392082U (en) | 2018-09-29 | 2018-09-29 | A kind of telescopic bone guide of double end is to nail-fetching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821601624.9U CN209392082U (en) | 2018-09-29 | 2018-09-29 | A kind of telescopic bone guide of double end is to nail-fetching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209392082U true CN209392082U (en) | 2019-09-17 |
Family
ID=67878043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821601624.9U Expired - Fee Related CN209392082U (en) | 2018-09-29 | 2018-09-29 | A kind of telescopic bone guide of double end is to nail-fetching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209392082U (en) |
-
2018
- 2018-09-29 CN CN201821601624.9U patent/CN209392082U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190917 Termination date: 20200929 |