CN209734113U - Internal fixing threaded needle capable of being screwed manually - Google Patents
Internal fixing threaded needle capable of being screwed manually Download PDFInfo
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- CN209734113U CN209734113U CN201920183330.7U CN201920183330U CN209734113U CN 209734113 U CN209734113 U CN 209734113U CN 201920183330 U CN201920183330 U CN 201920183330U CN 209734113 U CN209734113 U CN 209734113U
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Abstract
The utility model discloses a manually screwed-in internal fixation threaded needle, which comprises a needle body and a cap body, wherein the cap body comprises a movable section and a fixed section, the surface of the movable section close to the fixed section is connected with a buckle through a connecting section, and is provided with a first clamping groove, and the surface of the fixed section close to the movable section is provided with a second clamping groove matched with the buckle; the movable section is made of elastic material; the surface of the cap body is provided with anti-skid lines; the diameter of the cap body is 0.8-1.5 cm; the width of the connecting section is larger than the diameter of the needle body; one end of the needle body is a tip end, the other end penetrates through the movable section and is fixedly connected with the fixed section, so that the connecting position of the connecting section and the movable section and the first clamping groove are positioned on two sides of the needle body, and the movable section is fixed on the needle body in a clamping manner; the surface of the needle body is provided with unequal-distance threads, and the thread pitch is reduced along the direction far away from the tip. The internal fixing threaded needle is particularly suitable for fixing the fracture part of the children distal phalanx and the torn small bone block.
Description
Technical Field
The utility model particularly relates to a can screw into internal fixation thread needle by hand.
Background
At present, common fixing methods for phalangeal fracture and avulsion of small bone pieces include common kirschner wires, single-thread kirschner wires, small screws and the like. The commonly used fixing method is to use an electric drill to drill a fixing needle/nail into the fractured phalanx or to fix the torn small bone pieces. When the distal phalanx of the child is broken or fractured, a thin Kirschner wire (0.4-1mm) is often adopted for fixing, on one hand, the Kirschner wire is thin, the rotating speed of an electric drill is not easy to control, and the torsion is easy to generate under the high-speed driving of the electric drill, so that the phalanx fixing failure is caused; on the other hand, the texture of the distal phalanx of a child is soft, and a relatively high-speed drilling motion is likely to cause large damage, which is detrimental to the recovery of a fracture or tear.
in addition, the traditional method adopts an electric drill to fix the fracture part or the torn bone block by fixing pins/nails such as a kirschner wire and the like, and needs to see the drilling depth of the fixing pins in a perspective way, if the drilling depth is shallow, the fixing pins need to be drilled repeatedly, so that the fixing effect is ensured, and the operation is complicated. After the fixation is completed, the fixing needle is generally directly cut off, and a certain margin is usually left for subsequently pulling out the fixing needle. And the exposed fixing needle of the part is easy to cause potential safety hazard.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem existing in the prior art, the utility model aims at providing a but manual screw-in internal fixation screw thread needle. The internal fixation threaded needle is particularly suitable for fixing the fracture part of the children distal phalanx and the torn small bone block, and has higher safety.
in order to solve the technical problem, the technical scheme of the utility model is that:
A hand-screwed-in internal fixation threaded needle, which comprises a needle body and a cap body, wherein,
The cap body comprises a movable section and a fixed section, wherein the surface of the movable section, which is close to the fixed section, is connected with a buckle through a connecting section, the surface is provided with a first clamping groove, and the surface of the fixed section, which is close to the movable section, is provided with a second clamping groove matched with the buckle; the movable section is made of elastic material; the surface of the cap body is provided with anti-skid lines; the diameter of the cap body is 0.8-1.5 cm;
The width of the connecting section is larger than the diameter of the needle body;
One end of the needle body is a tip end, the other end penetrates through the movable section and is fixedly connected with the fixed section, so that the connecting position of the connecting section and the movable section and the first clamping groove are positioned on two sides of the needle body, and the movable section is fixed on the needle body in a clamping manner;
The surface of the needle body is provided with unequal-distance threads, and the thread pitch is reduced along the direction far away from the tip.
The depth of the screwed-in internal fixed thread needle can be influenced by factors such as the fracture position of the tail phalanx of the child, the volume of the torn small bone block and the like, and in order to avoid the long length of the exposed thread needle, the redundant part needs to be cut off. When using, the operator is the cap body of holding, aim at the most advanced of needle body the position of wanting to fix, twist the cap body, twist the needle body and fix, fixed completion back, separate the activity section from the canned paragraph, remove to the affected part that is close to the patient along the needle body, cut the needle body, make as far as possible the shear plane flush with the surface that is close to the canned paragraph of activity section, then with the buckle block in first draw-in groove, because the hookup location and the first draw-in groove of linkage segment and activity section are located the both sides of needle body, the width of linkage segment is greater than the diameter of needle body, at this moment, the linkage segment lid fits on the shear plane of needle body, the direct exposure of effectively having avoided the needle body causes the stab to children, the security of using has been improved.
the movable section is made of elastic materials, and the movable section is fixed on the needle body in a clamping mode, so that the movable section and the needle body can be firmly fixed, and the movable section can be further fixed in a mode of winding a cloth piece or gauze. After the fracture is healed, the movable section is taken down from the needle body, and then the needle body is pulled out.
The cap body is provided with anti-slip lines, so that slipping during operation can be prevented, and the continuity of screwing the fixing needle is ensured.
The surface of the needle body is provided with the unequally spaced screw thread, and when the needle body was fixed to the bone piece, the unequally spaced screw thread had the fixed effect of pressurization to guarantee fixed fastness.
Further, the cap body is of a hyperbolic rotating body structure, and the needle body is fixed along the axis of the hyperbolic rotating body structure.
The middle position of the hyperbolic rotating body structure is concave, so that the hand can be conveniently positioned when the hyperbolic rotating body structure is screwed in, and the slippage preventing effect is achieved.
Furthermore, the thickness of the movable section along the axial direction of the needle body is 1.5-2 mm.
further, the diameter of the needle body is 0.4-1 cm. Is suitable for fixing the distal phalanx and the torn small bone blocks of the children.
Furthermore, 2 or 3 sections of unequal threads are uniformly distributed on the surface of the needle body. The screwed depth can be judged by observing the positions of the unequal threads corresponding to the screwed positions, and the screwed depth can be observed without adopting a perspective mode, so that the operation is simpler and more convenient.
Furthermore, the end of the needle body is provided with an expansion structure, and the expansion structure is embedded in the fixed section. To improve the reliability of the fixation.
Furthermore, the needle body comprises a first section, a second section and a third section which are sequentially connected end to end, the diameters of the first section, the second section and the third section are sequentially increased, and the third section is connected with the fixed section.
The needle body with the reducing structure can effectively prevent the needle body from being twisted in the screwing process, ensures the success rate and can reduce the damage to bones.
Furthermore, the first section, the second section and the third section are all provided with unequal-distance threads.
The utility model has the advantages that:
the connection position of linkage segment and movable segment and first draw-in groove are located the both sides of needle body, and the width of linkage segment is greater than the diameter of needle body, and during buckle block and first draw-in groove, the linkage segment lid fits on the shear plane of needle body, has effectively avoided the direct exposure of needle body to cause the puncture to children, has improved the security of using.
The movable section is made of elastic materials, and the movable section is fixed on the needle body in a clamping mode, so that the movable section and the needle body can be firmly fixed, and the movable section can be further fixed in a mode of winding a cloth piece or gauze. After the fracture is healed, the movable section is taken down from the needle body, and then the needle body is pulled out.
The cap body is provided with anti-slip lines, so that slipping during operation can be prevented, and the continuity of screwing the fixing needle is ensured.
the surface of the needle body is provided with the unequally spaced screw thread, and when the needle body was fixed to the bone piece, the unequally spaced screw thread had the fixed effect of pressurization to guarantee fixed fastness.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic structural view of example 1;
FIG. 2 is a schematic sectional view showing the structure of the cap of embodiment 1;
FIG. 3 is a view showing a state in which the internally fixed threaded needle of embodiment 1 is used;
fig. 4 is a schematic structural view of the screw needle of embodiment 2.
The thread comprises 1 equidistant thread, 2 needle body, 3 unequal thread, 4 movable section, 5 fixed section, 6 buckle, 7 expanding structure, 8 first clamping groove, 9 connecting section, 10 first section, 11 second section, 12 third section.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Example 1
As shown in fig. 1 and 2, a manually screwed-in internal fixation threaded needle comprises a needle body 2 and a cap body, wherein the cap body comprises a movable section 4 and a fixed section 5, the surface of the movable section 4, which is close to the fixed section 5, is connected with a buckle 6 through a connecting section 9, and is provided with a first clamping groove 8, the surface of the fixed section 5, which is close to the movable section, is provided with a second clamping groove matched with the buckle 6, when the needle is not in use, the movable section 4 and the fixed section 5 are tightly attached, the surface of the movable section 4 is provided with a groove body for placing the connecting section 9, and the buckle 6 is clamped and fixed in the second clamping groove of the fixed section 5 for connecting the movable section 4 and the fixed section 5.
The movable section 4 is made of elastic materials, and the movable section 4 is fixed on the needle body 2 in a clamping mode, so that the movable section 4 and the needle body 2 can be firmly fixed, and the movable section can be further fixed in a mode of winding a cloth piece or gauze. After the fracture is healed, the movable section 4 is taken down from the needle body, and then the needle body 2 is pulled out. The material of the connecting section 9 is the same as that of the movable section 4, and the connecting section and the movable section can be integrally formed to ensure the connecting strength between the two. The two parts can also be in a split structure, and the two parts are welded by heating and melting the two parts and then bonding the two parts together.
The surface of the cap body is provided with anti-skidding lines which can prevent the cap body from skidding during operation, and the continuity of screwing the fixing needle is ensured.
The diameter of the cap body is 0.8-1.5cm, so that manual operation is convenient, and when the size is too large, the fixing effect is influenced; the width of the connecting section 9 is larger than the diameter of the needle body 2, so that the needle body can be completely covered; the cap body is a hyperbolic rotating body structure, and the needle body is fixed along the axis of the hyperbolic rotating body structure. The hyperbola rotary structure is a solid structure formed by hyperbolas and surfaces between the hyperbolas rotating around a central axis, the middle position of the hyperbola rotary structure is concave, the positioning of a hand is convenient when the hyperbola rotary structure is screwed in, and the slipping prevention effect is achieved.
And the colloid distribution form of equidistant screw threads and unequal screw threads can also be arranged. To accommodate different screw-in depths.
The thickness of the movable section 4 along the axial direction of the needle body 2 is 1.5-2 mm.
The diameter of the needle body 2 is 0.4-1 cm. Is suitable for fixing the distal phalanx and the torn small bone blocks of the children. One end of the needle body 2 is a tip end, the other end penetrates through the movable section 4 and is fixedly connected with the fixed section 5, so that the connecting position of the connecting section 9 and the movable section 4 and the first clamping groove 8 are positioned at two sides of the needle body 2, and the movable section 4 is fixed on the needle body 2 in a clamping manner; the surface of the needle body 2 is provided with unequal-pitch threads, and the thread pitch is reduced along the direction far away from the tip. The surface of the needle body is provided with the unequally spaced screw thread, and when the needle body was fixed to the bone piece, the unequally spaced screw thread had the fixed effect of pressurization to guarantee fixed fastness. 2 or 3 sections of non-equidistant threads 3 can be uniformly distributed on the surface of the needle body 2. The screwed depth can be judged by observing the positions of the unequal threads corresponding to the screwed positions, and the screwed depth can be observed without adopting a perspective mode, so that the operation is simpler and more convenient.
furthermore, an expansion structure 7 is arranged at the end part of the needle body 2, and the expansion structure 7 is embedded in the fixed section 5. To improve the reliability of the fixation. The expanded structure 7 may be a cubic structure or a prismatic structure or other irregular three-dimensional structure.
The depth of the screwed-in internal fixed thread needle can be influenced by factors such as the fracture position of the tail phalanx of the child, the volume of the torn small bone block and the like, and in order to avoid the long length of the exposed thread needle, the redundant part needs to be cut off. When using, the operator holds the cap body, aim at the most advanced of needle body the position that will fix, twist the cap body, twist the needle body and fix, after fixed the completion, separate the movable segment from the canned paragraph, move to the affected part that is close to the patient along the needle body, cut the needle body, make the shear plane flush with the surface that is close to the canned paragraph of movable segment as far as possible, then with the buckle block in first draw-in groove, because the hookup location of linkage segment and movable segment and first draw-in groove are located the both sides of needle body, the width of linkage segment is greater than the diameter of needle body, at this moment, the linkage segment lid fits on the shear plane of needle body, as shown in fig. 3, the direct exposure of effectively having avoided the needle body causes the puncture to children, the security of using has been improved, in order to guarantee the leakproofness of closing, when buckle 6 blocks in first draw-in groove 8, linkage segment 9 just in time is in the state. The connecting section 9 is of a wide and flat structure so as to be beneficial to covering.
Example 2
As shown in fig. 4, the needle body 2 comprises a first section 10, a second section 11 and a third section 12 which are connected end to end in sequence, the diameters of the first section 10, the second section 11 and the third section 12 are sequentially increased, the third section 12 is connected with the fixed section 5, and if the diameter of the first section 10 is 0.4mm, the diameter of the second section 11 is 0.6mm, and the diameter of the third section 12 is 0.8 mm. The needle body with the reducing structure can effectively prevent the needle body from being twisted in the screwing process, ensures the success rate and can reduce the damage to bones. The first section 10, the second section 11 and the third section 12 are all provided with non-equidistant threads 3.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (7)
1. A can screw into internal fixation whorl needle by hand, characterized by that: comprises a needle body and a cap body, wherein,
the cap body comprises a movable section and a fixed section, wherein the surface of the movable section, which is close to the fixed section, is connected with a buckle through a connecting section, the surface is provided with a first clamping groove, and the surface of the fixed section, which is close to the movable section, is provided with a second clamping groove matched with the buckle; the movable section is made of elastic material; the surface of the cap body is provided with anti-skid lines; the diameter of the cap body is 0.8-1.5 cm;
The width of the connecting section is larger than the diameter of the needle body;
One end of the needle body is a tip end, the other end penetrates through the movable section and is fixedly connected with the fixed section, so that the connecting position of the connecting section and the movable section and the first clamping groove are positioned on two sides of the needle body, and the movable section is fixed on the needle body in a clamping manner;
the surface of the needle body is provided with unequal-distance threads, and the thread pitch is reduced along the direction far away from the tip.
2. the manually screwable internally fixed threaded needle of claim 1, wherein: the cap body is a hyperbolic rotating body structure, and the needle body is fixed along the axis of the hyperbolic rotating body structure.
3. The manually screwable internally fixed threaded needle of claim 1, wherein: the thickness of the movable section along the axial direction of the needle body is 1.5-2 mm.
4. The manually screwable internally fixed threaded needle of claim 1, wherein: the diameter of the needle body is 0.4-1 cm.
5. The manually screwable internally fixed threaded needle of claim 1, wherein: the end of the needle body is provided with an expansion structure which is embedded in the fixed section.
6. The manually screwable internally fixed threaded needle of claim 1, wherein: the needle body comprises a first section, a second section and a third section which are sequentially connected end to end, the diameters of the first section, the second section and the third section are sequentially increased, and the third section is connected with the fixed section.
7. The manually screwable internally fixed threaded needle of claim 6, wherein: the first section, the second section and the third section are all provided with unequal-distance threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920183330.7U CN209734113U (en) | 2019-02-01 | 2019-02-01 | Internal fixing threaded needle capable of being screwed manually |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920183330.7U CN209734113U (en) | 2019-02-01 | 2019-02-01 | Internal fixing threaded needle capable of being screwed manually |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209734113U true CN209734113U (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920183330.7U Active CN209734113U (en) | 2019-02-01 | 2019-02-01 | Internal fixing threaded needle capable of being screwed manually |
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| Country | Link |
|---|---|
| CN (1) | CN209734113U (en) |
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2019
- 2019-02-01 CN CN201920183330.7U patent/CN209734113U/en active Active
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