阅读说明：本技术 异形锁针槽及锁针器及其制作方法 (Special-shaped needle locking groove, needle locking device and manufacturing method of needle locking device ) 是由 杨清华 唐佩福 章耀华 *** 黄晓宇 彭爱民 郑学建 夏雨 金圣爱 吴鸿鹰 唐 于 2020-08-03 设计创作，主要内容包括：本发明公开了一种异形锁针槽,异形锁针槽由位于槽底的第一弧形面和两侧各一的两个第二弧形面所围成,第一弧形面匹配第一直径骨穿针上的一段曲面,两个第二弧形面对称设置且弧形内凹方向均沿远离异形锁针槽的中心的方向向外,两个第二弧形面分别匹配第二直径骨穿针上的相对的两段曲面,第一直径骨穿针抵接第一弧形面和外固定器的表面能够固定于异形锁针槽内或者第二直径骨穿针抵接两个第二弧形面和外固定器的表面能够固定于异形锁针槽内。该异形锁针槽能够容纳两种直径规格的骨穿针,且槽的规格可根据实际应用场合来确定。如此一来,在更换所需的另一种骨穿针时,无需再拆卸锁针器,简化了操作流程,提高了效果。(The invention discloses a special-shaped lock pin groove which is formed by a first arc-shaped surface positioned at the bottom of a groove and two second arc-shaped surfaces respectively arranged at two sides, wherein the first arc-shaped surface is matched with one section of curved surface on a first diameter bone penetrating pin, the two second arc-shaped surfaces are symmetrically arranged, the inward concave direction of the arc is outward along the direction far away from the center of the special-shaped lock pin groove, the two second arc-shaped surfaces are respectively matched with two opposite sections of curved surfaces on the second diameter bone penetrating pin, the first diameter bone penetrating pin is abutted against the first arc-shaped surface and the surface of an external fixator can be fixed in the special-shaped lock pin groove, or the second diameter bone penetrating pin is abutted against the two second arc-shaped surfaces and the surface of the external fixator can be fixed in the special-shaped lock pin groove. The special-shaped needle locking groove can accommodate bone puncture needles with two diameter specifications, and the specification of the groove can be determined according to practical application occasions. Therefore, when another kind of bone-penetrating needle required by replacement is replaced, the needle locking device does not need to be detached, the operation process is simplified, and the effect is improved.)

1. The special-shaped lock pin groove is characterized by being formed by a first arc-shaped surface located at the bottom of a groove and two second arc-shaped surfaces located on two sides of the groove, the first arc-shaped surface is matched with one section of curved surface on a first diameter bone penetrating pin, the two second arc-shaped surfaces are symmetrically arranged, the arc concave direction is towards the outside along the direction far away from the center of the special-shaped lock pin groove, the two second arc-shaped surfaces are respectively matched with two sections of opposite curved surfaces on a second diameter bone penetrating pin, the first diameter bone penetrating pin is abutted to the surfaces of the first arc-shaped surface and an external fixator, and the surfaces of the first arc-shaped surface and the external fixator are fixed in the special-shaped lock pin groove or the surfaces of the second arc-shaped surface and the external fixator are fixed in the special-shaped lock pin groove.

2. The contoured pin tumbler slot of claim 1, wherein the first diameter bone penetrating pin has a diameter that is less than a diameter of the second diameter bone penetrating pin by 0.5 cm.

3. The manufacturing method of the special-shaped lock pin groove is characterized in that a first arc-shaped surface and two second arc-shaped surfaces are prepared, the first arc-shaped surface is located at the bottom of a groove, the first arc-shaped surface is matched with one section of curved surface on a first diameter bone penetrating pin, the two second arc-shaped surfaces are connected to two sides of the first arc-shaped surface, the first arc-shaped surface and the two second arc-shaped surfaces form the special-shaped lock pin groove in a surrounding mode, the two second arc-shaped surfaces are symmetrically arranged, the arc concave direction is outward along the direction far away from the center of the special-shaped lock pin groove, and the two second arc-shaped surfaces are respectively matched with two sections of opposite curved surfaces on the second diameter bone penetrating pin.

4. A needle locking device is characterized by comprising a main body part, wherein the main body part is provided with an upper surface and a lower surface which are respectively positioned at two opposite sides of the main body part, when the needle locking device is connected with an external fixator, the lower surface faces the surface of the external fixator, a bone-penetrating needle fixing groove is formed in the lower surface, the bone-penetrating needle fixing groove is the special-shaped needle locking groove in any one of claims 1-2, the lower surface extends in the direction away from the upper surface to form a protrusion to form a connecting part, and a connecting part thread corresponding to a threaded hole in the external fixator is arranged on the connecting part.

5. The needle locking device according to claim 4, wherein the main body further has a first upright side and a second upright side opposite to each other, the first upright side and the second upright side are arranged in parallel and perpendicular to the upper surface and the lower surface, corresponding ends of the first upright side and the second upright side are connected by a curved side, and the needle-threading fixing groove is formed as a through groove extending in a direction from the first upright side to the second upright side.

6. The needle locking device according to claim 5, characterized in that the upper surface is provided with a disassembly mounting groove which matches a corresponding wrench.

7. The needle locking device according to claim 6, characterized in that the disassembly mounting groove is an inner hexagonal groove type or a straight groove type or an inner triangular groove type or an inner angle square groove type or a cross groove type or a meter groove type or a flower groove type or a quincunx groove type.

8. A manufacturing method of a needle locking device is characterized in that a main body part and a connecting part which are connected are prepared, the main body part is provided with an upper surface and a lower surface which correspond to each other, the connecting part is connected to the lower surface, a bone puncture needle fixing groove is formed in the lower surface by the manufacturing method of the special-shaped needle locking groove according to claim 3, connecting part threads are arranged on the connecting part, and the connecting part threads correspond to threaded holes in an external fixing device.

9. The manufacturing method of the needle locking device according to claim 8, wherein a disassembly mounting groove is formed on the upper surface and matched with a corresponding wrench.

Technical Field

The invention relates to the technical field of medical instruments, in particular to a special-shaped needle locking groove, a needle locking device and a manufacturing method of the needle locking device.

Background

In the medical field, after the bone is broken, a needle locker is often needed for bone fixation treatment, and if the needle locker is needed to lock a bone-penetrating needle with an external fixator or an extracorporeal traction device, the normal use is ensured; the needle locking device and the external fixator are usually detachably connected, and the connection is generally realized by arranging a threaded hole on the external fixator and arranging a threaded bolt matched with the threaded hole on the needle locking device. For the fixation of the bone-penetrating needle, a needle locking groove for accommodating the bone-penetrating needle is arranged on the needle locking device, and after the needle locking device is connected with the external fixator, an opening of the needle locking groove is attached to the external fixator, so that the bone-penetrating needle can be fixed.

The bone puncture needle has more specifications, namely the diameter has more specifications; the needle locking groove on the existing needle locking device is usually only suitable for a bone puncture needle with one diameter specification, and therefore the following disadvantages exist:

when the bone-penetrating needle with other specifications needs to be replaced at the fracture part, the original needle locker needs to be detached and replaced by the needle locker suitable for the bone-penetrating needle. Thus, the operation is complicated.

Therefore, how to provide a needle locking groove capable of facilitating the replacement of a bone puncture needle becomes a technical problem which needs to be solved by the technical personnel in the field.

Disclosure of Invention

In order to achieve the above purpose, the technical scheme adopted by the invention comprises the following steps:

the utility model provides a dysmorphism lock needle groove, dysmorphism lock needle groove is enclosed by the first arcwall face that is located the tank bottom and two second arcwall faces of each one in both sides, first arcwall face matches one section curved surface on the first diameter bone puncture needle, two second arcwall face symmetry sets up and the arc indent direction all outwards along the direction of keeping away from the center of dysmorphism lock needle groove, two the second arcwall face matches two sections curved surfaces relative on the second diameter bone puncture needle respectively, first diameter bone puncture needle butt first arcwall face and the surface of external fixator can be fixed in the dysmorphism lock needle inslot or second diameter bone puncture needle butt two the surface of second arcwall face and external fixator can be fixed in the dysmorphism lock needle groove.

Preferably, the first diameter bone penetrating needle has a diameter less than the diameter of the second diameter bone penetrating needle by 0.5 cm.

The special-shaped lock pin groove provided by the invention has the following technical effects:

the special-shaped lock pin groove is formed by a first arc-shaped surface and two second arc-shaped surfaces in a surrounding mode, wherein the first arc-shaped surface can be matched with one section of curved surface on the first-diameter bone puncture pin, and the two second arc-shaped surfaces can be respectively matched with two sections of opposite curved surfaces on the second-diameter bone puncture pin. Therefore, when the first-diameter bone puncture needle needs to be used, the first-diameter bone puncture needle can be abutted against the first arc-shaped surface and the surface of the outer fixer to be fixed in the special-shaped lock needle groove, and when the second-diameter bone puncture needle needs to be used, the second-diameter bone puncture needle can be abutted against the two second arc-shaped surfaces and the surface of the outer fixer to be fixed in the special-shaped lock needle groove. The special-shaped needle locking groove can accommodate bone puncture needles with two diameter specifications, and the specification of the groove can be determined according to practical application occasions. Therefore, when another kind of bone-penetrating needle required by replacement is replaced, the needle locking device does not need to be detached, the operation process is simplified, and the effect is improved.

Furthermore, the special-shaped lock needle groove can be used for bone puncture needles with the diameter difference of 0.5cm, and can meet the requirements of more fracture treatment use occasions.

The invention also provides a manufacturing method of the special-shaped lock pin groove, which comprises the steps of preparing a first arc-shaped surface and two second arc-shaped surfaces, wherein the first arc-shaped surface and the two second arc-shaped surfaces are positioned at the bottom of the groove, the first arc-shaped surface is matched with one section of curved surface on the first diameter bone penetrating pin, the two second arc-shaped surfaces are connected to two sides of the first arc-shaped surface, the first arc-shaped surface and the two second arc-shaped surfaces form the special-shaped lock pin groove in a surrounding mode, the two second arc-shaped surfaces are symmetrically arranged, the arc concave direction is outward along the direction far away from the center of the special-shaped lock pin groove, and the two second arc-shaped surfaces are respectively matched with two sections of opposite curved.

It has the same technical effects.

The invention also provides a needle locking device, which comprises a main body part, wherein the main body part is provided with an upper surface and a lower surface which are respectively positioned at two opposite sides of the main body part, when the needle locking device is connected with an external fixator, the lower surface faces the surface of the external fixator, the lower surface is provided with a bone-puncture needle fixing groove, the bone-puncture needle fixing groove is the special-shaped needle locking groove, the lower surface extends along the direction far away from the upper surface to form a bulge to form a connecting part, and the connecting part is provided with a connecting part thread corresponding to a threaded hole on the external fixator.

Preferably, the main body further has a first upright side and a second upright side opposite to each other, the first upright side and the second upright side are parallel to each other and perpendicular to the upper surface and the lower surface, corresponding ends of the first upright side and the second upright side are connected by a curved side, and the puncture needle fixing groove is extended in a direction from the first upright side to the second upright side to form a through groove.

Preferably, the upper surface is provided with a disassembly installation groove matched with a corresponding wrench.

Preferably, the disassembly mounting groove is an inner hexagonal groove type, a straight groove type, an inner triangular groove type, an inner angle square groove type, a cross groove type, a meter groove type, a flower groove type or a quincunx groove type.

The needle locking device provided by the invention comprises the special-shaped needle locking groove and has the technical effects as above.

The invention also provides a manufacturing method of the needle locking device, which comprises the steps of preparing a main body part and a connecting part which are connected, wherein the main body part is provided with an upper surface and a lower surface which correspond to each other, the connecting part is connected to the lower surface, a bone puncture needle fixing groove is formed in the lower surface by adopting the manufacturing method of the special-shaped needle locking groove, connecting part threads are arranged on the connecting part, and the connecting part threads correspond to threaded holes in an external fixator.

Preferably, the upper surface is provided with a disassembly installation groove matched with a corresponding wrench.

It has the same technical effects.

Furthermore, the upper surface is provided with the dismounting installation groove, so that when the spanner is used for operation, the operation space of the spanner cannot be limited due to the adjacent needle locking device, and the operability is improved.

Drawings

Fig. 1 is a schematic structural view of a specific embodiment of a needle lock provided in the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1.

The reference numerals in fig. 1-2 are as follows:

the special-shaped lock pin groove comprises a special-shaped lock pin groove body 1, a first arc-shaped surface 11, a second arc-shaped surface 12, a vertical surface 13, a main body part 2, an upper surface 21, a lower surface 22, a connecting part 3 and a disassembly installation groove 4.

Detailed Description

For a clearer understanding of the contents of the present invention, reference will be made to the accompanying drawings and detailed description.

As shown in fig. 1-2, fig. 1 is a schematic structural view of a specific embodiment of a needle lock provided in the present invention; fig. 2 is an enlarged view of a portion a in fig. 1.

With reference to fig. 1 and 2, the invention provides a special-shaped pin locking groove 1, the special-shaped pin locking groove 1 is surrounded by a first arc-shaped surface 11 located at the bottom of the groove and two second arc-shaped surfaces 12 located at two sides of the groove, the first arc-shaped surface 11 is matched with a section of curved surface on a first diameter bone penetrating pin, the two second arc-shaped surfaces 12 are symmetrically arranged, the arc concave direction is outward along the direction far away from the center of the special-shaped pin locking groove 1, the two second arc-shaped surfaces 12 are respectively matched with two opposite sections of curved surfaces on a second diameter bone penetrating pin, the surfaces of the first diameter bone penetrating pin, which is abutted against the first arc-shaped surface 11, and an external fixator can be fixed in the special-shaped pin locking groove 1, or the surfaces of the second diameter bone penetrating pin, which is abutted against the two second arc-shaped surfaces 12, and the external fixator can be fixed in the special-shaped pin.

The special-shaped lock pin groove 1 is formed by a first arc-shaped surface 11 and two second arc-shaped surfaces 12 in a surrounding mode, wherein the first arc-shaped surface 11 can be matched with one section of curved surface on the first-diameter bone puncture pin, and the two second arc-shaped surfaces 12 can be respectively matched with two sections of opposite curved surfaces on the second-diameter bone puncture pin. Therefore, when the first diameter bone puncture needle needs to be used, the first diameter bone puncture needle can be abutted against the first arc-shaped surface 11 and the surface of the external fixator to be fixed in the special-shaped needle locking groove 1, and when the second diameter bone puncture needle needs to be used, the second diameter bone puncture needle can be abutted against the two second arc-shaped surfaces 12 and the surface of the external fixator to be fixed in the special-shaped needle locking groove 1. The special-shaped needle locking groove 1 can accommodate bone puncture needles with two diameter specifications, and the specification of the groove can be determined according to practical application occasions. Therefore, when another kind of bone-penetrating needle required by replacement is replaced, the needle locking device does not need to be detached, the operation process is simplified, and the effect is improved.

In one embodiment, the first diameter bone penetrating needle has a diameter less than the diameter of the second diameter bone penetrating needle by 0.5 cm.

Without being limited thereto, the specifications of the first and second arc-shaped faces may be defined according to the diameter of a commonly used bone-piercing needle. Thereby meeting the requirements of more fracture treatment and use occasions

Further, one side of each of the two second arc-shaped surfaces 12, which is far away from the first arc-shaped surface 11, extends to form a vertical surface 13, and the two vertical surfaces 13 have the same shape.

With reference to fig. 1 and 2, the present invention further provides a method for manufacturing the special-shaped pin locking groove 1, which comprises the following steps:

the preparation is located first arcwall face 11 and two second arcwall faces 12 of tank bottom, first arcwall face 11 matches one section curved surface on the first diameter bone puncture needle, and with two second arcwall face 12 connect in the both sides of first arcwall face 11, first arcwall face 11 and two second arcwall face 12 enclose into dysmorphism lock needle groove 1, and two second arcwall face 12 symmetry sets up and the arc indent direction all outwards along the direction of keeping away from the center of dysmorphism lock needle groove 1, two second arcwall face 12 matches two sections relative curved surfaces on the second diameter bone puncture needle respectively.

The manufacturing method of the special-shaped lock pin groove 1 has the same technical effects.

As shown in fig. 1, the invention further provides a needle locking device, which includes a main body 2, the main body 2 has an upper surface 21 and a lower surface 22, which are respectively located at two opposite sides of the main body 2, when the needle locking device is connected to an external fixator, the lower surface 22 faces the surface of the external fixator, the lower surface 22 is provided with a bone-penetrating needle fixing groove, the bone-penetrating needle fixing groove is the above-mentioned special-shaped needle locking groove 1, the lower surface 22 extends in a direction away from the upper surface to form a protrusion, so as to form a connecting portion 3, and the connecting portion 3 is provided with a connecting portion thread corresponding to a threaded hole on the external fixator.

Further, the main body 2 further has a first vertical side and a second vertical side opposite to each other, the first vertical side and the second vertical side are parallel to each other and perpendicular to the upper surface 21 and the lower surface 22, one ends of the first vertical side and the second vertical side corresponding to each other are connected by a curved side, and the bone-piercing pin fixing groove is extended in a direction from the first vertical side to the second vertical side to form a through groove.

In this embodiment, as shown in fig. 1, a dismounting installation groove 4 is formed on the upper surface, and the dismounting installation groove 4 is matched with a corresponding wrench.

Further, the dismounting mounting groove 4 is an inner hexagonal groove type, a straight groove type, an inner triangular groove type, an inner corner square groove type, a cross groove type, a meter groove type, a flower groove type or a quincunx groove type.

The needle locking device comprises the special-shaped needle locking groove 1 and has the technical effects as above.

The invention also provides a manufacturing method of the needle locking device, which comprises the steps of preparing a main body part 2 and a connecting part 3 which are connected, wherein the main body part 2 is provided with an upper surface 21 and a lower surface 22 which correspond to each other, the connecting part 3 is connected to the lower surface 22, a bone puncture needle fixing groove is formed in the lower surface 22 by adopting the manufacturing method of the special-shaped needle locking groove 1, a connecting part thread is arranged on the connecting part 3, and the connecting part thread corresponds to a threaded hole in an external fixator.

Furthermore, the upper surface 21 is provided with the dismounting mounting groove 4, so that when a wrench is used for operation, the operation space of the wrench cannot be limited by an adjacent needle locking device, and the operability is improved.

The manufacturing method of the needle locking device provided by the invention has the same technical effects.