CN204542334U - A kind of fracture fixation device - Google Patents
A kind of fracture fixation device Download PDFInfo
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- CN204542334U CN204542334U CN201520189283.9U CN201520189283U CN204542334U CN 204542334 U CN204542334 U CN 204542334U CN 201520189283 U CN201520189283 U CN 201520189283U CN 204542334 U CN204542334 U CN 204542334U
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- bundling belt
- snap close
- groove
- draw
- pressurization
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Abstract
This utility model relates to technical field of medical instruments, a specifically fracture fixation device, comprises pressurization dop and interconnective snap close, bundling belt, and described snap close horizontal direction runs through and is provided with opening, the end face of described snap close offers draw-in groove, this draw-in groove and opening through; After the free end of described bundling belt runs through the opening of snap close horizontal direction, pressurization dop to be connected in draw-in groove and to abut against with bundling belt, makes bundling belt form loop configuration.The beneficial effects of the utility model are, after the free end of bundling belt being run through the opening of snap close horizontal direction and after being adjusted to correct position, the mode of directly knocking pressurization is adopted to snap in snap close by pressurization dop, the sawtooth teeth groove coupling complementation of the sawtooth of pressurization dop side surface and draw-in groove side, the pawl of bundling belt and the pawl teeth groove of draw-in groove bottom surface is made to mate complementary, so that in the further engagement of bundling belt and snap close, improve the stability of fixture, bundling belt is not easily deviate from, is conducive to the early functional exercise of patient.
Description
Technical field
This utility model relates to technical field of medical instruments, specifically a kind of fracture fixation device.
Background technology
Clinically, it is fixing that fracture fixation belt is usually used in fracture site binding, and fixing band conventional is at present made up of metal material, usually as the tension band etc. made by steel wire or wirerope.No matter metal material is in rigidity, intensity, or fatigue resistance aspect is all more satisfactory, but because of long-term implant cause deteriorate, metal allergy reaction, the stress effect of blocking and the osteoporosis that causes likely causes postoperative second fracture again, need to carry out second operation after adding union of fracture and take out steel nail or clamping plate, this also just means that patient not only will bear second time misery, too increase financial burden simultaneously, moreover, metal material carries out the inspections such as CT or MRI after affecting operation in patients, thus likely affects surgical quality.
Desirable bone material should be safely, reliably, easily use and can degrade and do not need to take out.Its intrinsic initial strength of Biodegradable material adopting the materials such as PGA, polylactide, polylactic acid to make can play the effect of conventional steel bonesetting material, and As time goes on and fracture healing gradually, Biodegradable material is absorbed by tissue gradually, do not accumulate in vivo, almost there is no toxic action, its original space can be substituted by osseous tissue, the misery that patient also need not perform the operation again; In addition because the elastic modelling quantity of absorbable material is similar to spongy bone elastic modelling quantity, allow fracture end local to produce small activity, be conducive to union of fracture, after not affecting operation in patients, carry out the inspections such as CT or MRI any time.
The internal fixation device that traditional employing Biodegradable material is made mostly is spike or bar-shaped, the pressurization being mainly used in the fracture around joint broken ends of fractured bone is fixed, but bones of limbs comminuted is fractured, spike or bar-shaped inner fixer cannot to bone block effective pressurizations, fixing easily inefficacy, therefore conventional spike or bar-shaped internal fixation device are fixed in conjunction with steel plate.
Application number is " 201020514147.X ", Authorization Notice No. is " CN 201743760 U ", name is called that the Chinese utility model patent of " a kind of belt type absorbable fracture fixation strap " discloses a kind of belt type absorbable fracture fixation strap, be made up of snap close, bundling belt and compression screw, snap close is hollow cuboid, left and right end face opening, the rectangle end face of top is provided with a screw, this screw is provided with female thread, it mates with the external screw thread of the compression screw be threaded onto in this screw, the bottom surface of snap close inner chamber is laterally provided with and arranges pawl more; One end of bundling belt and the bottom surface of snap close rear end are connected, curved angle, junction, so that bundle along the flexibility bending of fracture site, the one side that bundling belt is affixed on surface of bone is laterally provided with pawl, this pawl mates complementation with the pawl on snap close inner chamber bottom surface, is tightened compression screw to be inserted by bundling belt tail end after snap close tightens up and is fixed by the mutual occlusion between pawl and pawl.The defect of this utility model is: 1, compression screw is screwed in process in rotation and easily occurs stripped thread, and then causes loosening, and causing cannot effective fixation binding band; 2, in compression screw rundown process may there is stripped thread in its tail cap portion, causes the bundling belt that cannot pressurize.Therefore when using compression screw fixation binding band, along with the fine motion of fracture site, easily occurring that bundling belt is fixed not firm and causes loosening, causing fracture fixation to lose efficacy further.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of and improves fixture stability and the fracture fixation device that bundling belt is not easily deviate from.
In order to achieve the above object, this utility model provides a kind of fracture fixation device, comprises pressurization dop and interconnective snap close, bundling belt, and described snap close horizontal direction runs through and is provided with opening, the end face of described snap close offers draw-in groove, this draw-in groove and opening through;
After the free end of described bundling belt runs through the opening of snap close horizontal direction, pressurization dop to be connected in draw-in groove and to abut against with bundling belt, makes bundling belt form loop configuration.
Preferably, the side surface of described pressurization dop is provided with at least one gang saw tooth;
The side of described draw-in groove is provided with the sawtooth teeth groove matched with this sawtooth.
Preferably, the surface of described bundling belt is provided with at least one row's pawl;
The bottom surface of described draw-in groove is provided with the pawl teeth groove matched with this pawl.The pawl of described bundling belt and the pawl teeth groove coupling complementation of draw-in groove bottom surface, to a certain degree engage each other afterwards to insert latch openings at bundling belt free end and to be tightened to, bundling belt be connected with snap close.
Preferably, described snap close and the junction of bundling belt are provided with arc angle, and the angle of this arc angle is 90 ~ 150 °.Described arc angle is convenient to bundling belt and is carried out bending binding along the flexibility of fracture site.
Preferably, the length of described snap close is 5 ~ 10mm, and width is 5 ~ 8mm, is highly 5 ~ 10mm;
The length of described snap close inner opening is 5 ~ 10mm, and width is 3 ~ 5mm, is highly 3 ~ 5mm;
The length of described draw-in groove is 3 ~ 5mm, and width is 2 ~ 4mm, is highly 2 ~ 4mm.
Preferably, the length of described bundling belt is 150 ~ 200mm, and width is 3 ~ 10mm, and thickness is 1.5 ~ 2mm.
Preferably, described pressurization dop comprises cap body section and body section, described sawtooth be horizontally installed on body section on side, wherein the length of cap body section is 1 ~ 1.5mm, and the length of body section is 3 ~ 5.5mm;
A nearlyer step, the length of described snap close is 10mm, and width is 8mm, is highly 8mm;
The length of described snap close inner opening is 10mm, and width is 5mm, is highly 5mm;
The length of described draw-in groove is 4mm, and width is 3mm, is highly 2mm;
The length of the cap body section of described pressurization dop is 1.3mm, and the length of the body section of pressurization dop is 5.2mm;
The length of described bundling belt is 200mm, and width is 5mm, and thickness is 1.5mm.
Preferably, the row of the pawl of described draw-in groove bottom surface is 4 ~ 6 rows, and the height of described pawl is 0.5 ~ 0.8mm.
The beneficial effects of the utility model are, after the free end of bundling belt being run through the opening of snap close horizontal direction and after being adjusted to correct position, the mode of directly knocking pressurization is adopted to snap in snap close by pressurization dop, the sawtooth teeth groove coupling complementation of the sawtooth of pressurization dop side surface and draw-in groove side, the pawl of bundling belt and the pawl teeth groove of draw-in groove bottom surface is made to mate complementary, so that in the further engagement of bundling belt and snap close, improve the stability of fixture, bundling belt is not easily deviate from, be conducive to the early functional exercise of patient, operation technique is simple, easy to use.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of dop of pressurizeing in this utility model;
Fig. 3 is the sectional view of lock catch part in this utility model;
Fig. 4 is that this utility model is for humeral fracture fixed model schematic diagram.
Wherein:
1-snap close 2-bundling belt 3-pressurizes dop
31-cap body section 32-body section 4-draw-in groove
5-sawtooth 6-sawtooth teeth groove 7-pawl
8-pawl teeth groove 9-arc angle
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described further.
Embodiment 1:
A kind of fracture fixation device as shown in Figure 1 to 4, comprises pressurization dop 3 and interconnective snap close 1, bundling belt 2, and described snap close 1 horizontal direction runs through and is provided with opening, and the end face of described snap close offers draw-in groove 4;
The free end of described bundling belt 2 runs through the opening of snap close 1 horizontal direction along direction A after, pressurization dop 3 to be connected in draw-in groove 4 and to abut against with bundling belt 2, makes bundling belt 2 form loop configuration.
The side surface of described pressurization dop 3 is provided with at least one gang saw tooth 5;
The side surface of described draw-in groove 4 is laterally provided with the sawtooth teeth groove 6 matched with this sawtooth 5.
The surface of described bundling belt 2 is provided with at least one row's pawl 7;
The bottom surface of described draw-in groove 4 is provided with the pawl teeth groove 8 matched with this pawl 7.The pawl 7 of described bundling belt 2 and the pawl teeth groove 8 of draw-in groove 4 bottom surface mate complementation, to a certain degree engage each other afterwards, bundling belt 2 is connected with snap close 1 to insert snap close 1 opening at bundling belt 2 free end and to be tightened to.
The junction of described snap close 1 and bundling belt 2 is provided with arc angle 9, and the angle of this arc angle is 90 ~ 150 °, and arc angle 9 is convenient to bundling belt and is carried out bending binding along the flexibility of fracture site.
The length of described snap close 1 is 5 ~ 10mm, and width is 5 ~ 8mm, is highly 5 ~ 10mm;
The length of described snap close 1 inner opening is 5 ~ 10mm, and width is 3 ~ 5mm, is highly 3 ~ 5mm;
The length of described draw-in groove 4 is 3 ~ 5mm, and width is 3 ~ 5mm, is highly 3 ~ 5mm;
Described pressurization dop 3 comprises cap body section 31 and body section 32, described sawtooth 5 be horizontally installed on body section 32 on side, wherein the length of cap body section 31 is 1 ~ 1.5mm, and the length of body section 32 is 3 ~ 5.5mm.
The length of described bundling belt 2 is 150 ~ 200mm, and width is 3 ~ 10mm, and thickness is 1.5 ~ 2mm.
This utility model can make different specifications and models as required, for the simple oblique fracture of humerus, the absorbable fracture fixation strap of usual needs 2 ~ 3 identical or different models, for comminuted fracture, then according to the size of sclerite and the absorbable fracture fixation strap of many identical or different models how much can be selected to fix.
Embodiment 2:
A kind of fracture fixation device, adopt self enhanced type polylactic acid (Self-reinforcedpolyactide, SR-PLA) to make, all the other are with embodiment 1, and wherein the length of snap close 1 is 10mm, and width is 8mm, are highly 8mm;
The length of described snap close 1 inner opening is 10mm, and width is 5mm, is highly 5mm;
The length of described draw-in groove 4 is 4mm, and width is 3mm, is highly 2mm;
The length of the cap body section 31 of described pressurization dop 3 is 1.3mm, and the length of the body section 32 of pressurization dop 3 is 5.2mm;
The length of described bundling belt 2 is 200mm, and width is 5mm, and thickness is 1.5mm;
The angle of the arc angle 9 that the junction of described snap close 1 and bundling belt 2 is provided with is 135 °.
Below the preferred embodiment that this utility model is created is illustrated, but this utility model is created and is not limited to described embodiment, those of ordinary skill in the art can also make all equivalent modification or replacement under the prerequisite without prejudice to this utility model creative spirit, and these equivalent modifications or replacement are all included in the application's claim limited range.
Claims (8)
1. a fracture fixation device, comprise pressurization dop (3) and interconnective snap close (1), bundling belt (2), described snap close (1) horizontal direction runs through and is provided with opening, it is characterized in that: the end face of described snap close (1) offers draw-in groove (4), this draw-in groove (4) is through with opening;
After the free end of described bundling belt (2) runs through the opening of snap close (1) horizontal direction, pressurization dop (3) to be connected in draw-in groove (4) and to abut against with bundling belt (2), makes bundling belt (2) form loop configuration.
2. a kind of fracture fixation device according to claim 1, is characterized in that: the side surface of described pressurization dop (3) is provided with at least one gang saw tooth (5);
The side of described draw-in groove (4) is provided with the sawtooth teeth groove (6) matched with this sawtooth (5).
3. a kind of fracture fixation device according to claim 1, is characterized in that: the surface of described bundling belt (2) is provided with at least one row's pawl (7);
The bottom surface of described draw-in groove (4) is provided with the pawl teeth groove (8) matched with this pawl (7).
4. a kind of fracture fixation device according to claim 1, it is characterized in that: described snap close (1) and the junction of bundling belt (2) are provided with arc angle (9), and the angle of this arc angle (9) is 90 ~ 150 °.
5. a kind of fracture fixation device according to claim 1, is characterized in that: the length of described snap close (1) is 5 ~ 10mm, and width is 5 ~ 8mm, is highly 5 ~ 10mm;
The length of described snap close (1) inner opening is 5 ~ 10mm, and width is 3 ~ 5mm, is highly 3 ~ 5mm;
The length of described draw-in groove (4) is 3 ~ 5mm, and width is 2 ~ 4mm, is highly 2 ~ 4mm.
6. a kind of fracture fixation device according to claim 1, is characterized in that: the length of described bundling belt (2) is 150 ~ 200mm, and width is 3 ~ 10mm, and thickness is 1.5 ~ 2mm.
7. a kind of fracture fixation device according to claim 2, it is characterized in that: described pressurization dop (3) comprises cap body section (31) and body section (32), described sawtooth (5) be horizontally installed on body section (32) on side, wherein the length of cap body section (31) is 1 ~ 1.5mm, and the length of body section (32) is 3 ~ 5.5mm.
8. a kind of fracture fixation device according to claim 3, is characterized in that: the row of the pawl (4) of described draw-in groove (4) bottom surface is 4 ~ 6 rows, and the height of described pawl (4) is 0.5 ~ 0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520189283.9U CN204542334U (en) | 2015-03-31 | 2015-03-31 | A kind of fracture fixation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520189283.9U CN204542334U (en) | 2015-03-31 | 2015-03-31 | A kind of fracture fixation device |
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| Publication Number | Publication Date |
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| CN204542334U true CN204542334U (en) | 2015-08-12 |
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| CN201520189283.9U Active CN204542334U (en) | 2015-03-31 | 2015-03-31 | A kind of fracture fixation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114767945A (en) * | 2022-03-14 | 2022-07-22 | 上海浩渤医疗科技有限公司 | Ribbon for fixing comminuted fracture block and preparation method thereof |
-
2015
- 2015-03-31 CN CN201520189283.9U patent/CN204542334U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114767945A (en) * | 2022-03-14 | 2022-07-22 | 上海浩渤医疗科技有限公司 | Ribbon for fixing comminuted fracture block and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200907 Address after: Room 2512, Building 1088 A, Xinjinqiao Road, China (Shanghai) Free Trade Pilot Area, Pudong New Area, Shanghai, 2003 Patentee after: Shanghai Haobo Medical Technology Co.,Ltd. Address before: Pudong New Area town of Shanghai city in 201399 Arch Road No. 2800 Patentee before: Yu Baoqing |