CN214342563U

CN214342563U - Fixed nail adapter

Info

Publication number: CN214342563U
Application number: CN202022741486.8U
Authority: CN
Inventors: 孙延东; 黄欢欢; 王巍; 付长帅
Original assignee: Suzhou Microport Orthorecon Co Ltd
Current assignee: Suzhou Microport Orthorecon Co Ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-10-08
Anticipated expiration: 2030-11-24

Abstract

The utility model provides a staple adapter for connect the orthopedics staple that has the centre gripping head, the staple adapter includes: a clamping head and a rod body; the clamping head is provided with a first inner hole which is communicated along the axial direction of the clamping head, and the first inner hole is used for being matched with the clamping head part of the orthopedic fixing nail; the far end of the rod body is provided with an accommodating cavity, the shape of the accommodating cavity is matched with the shape of the outer contour of the clamping head, and the clamping head is used for being arranged in the accommodating cavity; the rod body is provided with a second inner hole arranged along the axial direction of the rod body, the far end of the second inner hole is communicated with the accommodating cavity, and when the clamping head is arranged in the accommodating cavity, the second inner hole envelops the extending track of the first inner hole towards the near end; the fixing nail adapter is used for attracting the fixing nail for orthopedics through magnetism. In this way, it can be adapted to clamping heads of different lengths. Can effectively prevent the falling off of the fixing nail for orthopedics.

Description

Fixed nail adapter

Technical Field

The utility model relates to an orthopedics instrument technical field, in particular to staple adapter.

Background

Screw fixation is the commonly used fixed mode in orthopedic surgery apparatus and the implant, and generally, the length of the centre gripping head of the staple for orthopedics differs, and the staple for orthopedics that centre gripping head is longer links through adapter and operating means (like electric tool or hand tool etc.) usually, but the adapter structure of commonly using is complicated, does not have the function of preventing the staple for orthopedics from droing under the condition that mechanical fastening became invalid. The orthopedic fixing nail with a short clamping head can not be matched with the adapter for use, so that inconvenience is brought to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a staple adapter to solve present adapter and be difficult to deal with the centre gripping head and the complicated scheduling problem of structure of different lengths.

In order to solve the technical problem, the utility model provides a staple adapter for connect the orthopedics that has the centre gripping head with the staple, the staple adapter includes: a clamping head and a rod body;

the clamping head is provided with a first inner hole which is communicated along the axial direction of the clamping head, and the first inner hole is used for being matched with the clamping head part of the orthopedic fixing nail;

the far end of the rod body is provided with an accommodating cavity, the shape of the accommodating cavity is matched with the shape of the outer contour of the clamping head, and the clamping head is used for being arranged in the accommodating cavity;

the rod body is provided with a second inner hole arranged along the axial direction of the rod body, the far end of the second inner hole is communicated with the accommodating cavity, and when the clamping head is arranged in the accommodating cavity, the second inner hole envelops the extending track of the first inner hole towards the near end;

the fixing nail adapter is used for attracting the fixing nail for orthopedics through magnetism.

Optionally, the gripping head is magnetic, or

The rod body is magnetic, and the clamping head is made of ferromagnetic materials.

Optionally, the staple adapter still includes magnet, the outline shape of magnet with the shape looks adaptation that holds the chamber, magnet be used for install in hold in the chamber, in order to provide the staple adapter actuation the magnetism of staple for orthopedics.

Optionally, the magnet is disposed at the proximal end of the clamping head, the magnet has a third inner hole penetrating along the axial direction of the magnet, and the third inner hole envelops an extending track of the first inner hole toward the proximal end.

Optionally, after the clamping head and the magnet are respectively installed in the accommodating cavity, the first inner hole, the second inner hole and the third inner hole are coaxially arranged.

Optionally, the cross-sectional shapes of the first, second and third bores are the same, or

The cross-sectional shape of the second bore and the cross-sectional shape of the third bore envelope the cross-sectional shape of the first bore.

Optionally, the first inner hole is a polygonal inner hole, and the second inner hole and the third inner hole are round holes.

Optionally, the staple adapter still includes connecting portion, connecting portion with the near-end of the body of rod is connected for with outside auxiliary instrument adaptation connection.

Optionally, the thickness of the clamping head in the axial direction of the clamping head is not more than 5 mm.

Optionally, the outer periphery of the rod body is cylindrical, and the diameter of the rod body ranges from 6mm to 12 mm.

To sum up, the utility model provides a staple adapter includes: a clamping head and a rod body; the clamping head is provided with a first inner hole which is communicated along the axial direction of the clamping head, and the first inner hole is used for being matched with the clamping head part of the orthopedic fixing nail; the far end of the rod body is provided with an accommodating cavity, the shape of the accommodating cavity is matched with the shape of the outer contour of the clamping head, and the clamping head is used for being arranged in the accommodating cavity; the rod body is provided with a second inner hole arranged along the axial direction of the rod body, the far end of the second inner hole is communicated with the accommodating cavity, and when the clamping head is arranged in the accommodating cavity, the second inner hole envelops the extending track of the first inner hole towards the near end; the fixing nail adapter is used for attracting the fixing nail for orthopedics through magnetism.

So the configuration, regardless of length, the centre gripping head of orthopedic fixation nail can insert first hole, if the centre gripping head is longer, then can further extend into the second hole, consequently the fixation nail adapter can adapt to the centre gripping head of different length. In addition, because the fixing nail adapter is used for attracting the fixing nail for orthopedics through magnetism, the falling-off of the fixing nail for orthopedics can be effectively prevented, thereby saving the operation time and improving the satisfaction degree of a user.

Drawings

Those skilled in the art will appreciate that the drawings are provided for a better understanding of the invention and do not constitute any limitation on the scope of the invention. Wherein:

fig. 1 is a schematic view of a staple adapter according to an embodiment of the present invention;

fig. 2 is a schematic longitudinal cross-sectional view of an orthopedic fixation nail adapter according to an embodiment of the present invention, used for connecting a short clamping head;

fig. 3 is a schematic longitudinal cross-sectional view of an orthopedic fixation nail adapter according to an embodiment of the present invention, used for connecting a long clamping head;

FIG. 4 is a schematic view of a gripping head according to an embodiment of the present invention;

fig. 5 is a schematic view of a rod body according to an embodiment of the present invention;

fig. 6a to 6c are schematic views of a preferred example of the first inner hole according to an embodiment of the present invention.

In the drawings:

1-a clamping head; 1 a-a first bore; 2-a magnet; 2 a-a third bore; 3-a rod body; 3 a-an accommodating cavity; 3 b-a linker; 3 c-a second bore; 4-orthopedic fixation nails; 4 a-clamping head.

Detailed Description

To make the objects, advantages and features of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be noted that the drawings are in simplified form and are not to scale, but rather are provided for the purpose of facilitating and distinctly claiming the embodiments of the present invention. Further, the structures illustrated in the drawings are often part of actual structures. In particular, the drawings may have different emphasis points and may sometimes be scaled differently.

As used in this application, the singular forms "a", "an" and "the" include plural referents, the term "or" is generally employed in a sense including "and/or," the terms "a", "an" and "the" are generally employed in a sense including "at least one", the terms "at least two" and "two or more" are generally employed in a sense including "two or more", and moreover, the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or imply that there is a number of technical features being indicated. Thus, a feature defined as "first", "second" or "third" may explicitly or implicitly include one or at least two of such features, with "one end" and "the other end" generally referring to the corresponding two parts, which include not only the end points, the term "proximal" generally being the end near the operator, and the term "distal" generally being the end near the orthopaedic staple, unless the context clearly indicates otherwise.

The utility model discloses a core thought lies in providing a staple adapter to solve current adapter and be difficult to deal with the centre gripping head and the complicated scheduling problem of structure of different lengths.

The following description refers to the accompanying drawings.

Please refer to fig. 1 to 6c, wherein fig. 1 is a schematic view of a fastening nail adapter according to an embodiment of the present invention; fig. 2 is a schematic longitudinal cross-sectional view of an orthopedic fixation nail adapter according to an embodiment of the present invention, used for connecting a short clamping head; fig. 3 is a schematic longitudinal cross-sectional view of an orthopedic fixation nail adapter according to an embodiment of the present invention, used for connecting a long clamping head; FIG. 4 is a schematic view of a gripping head according to an embodiment of the present invention; fig. 5 is a schematic view of a rod body according to an embodiment of the present invention; fig. 6a to 6c are schematic views of a preferred example of the first inner hole according to an embodiment of the present invention.

As shown in fig. 1, an embodiment of the present invention provides a fastening nail adapter for connecting an orthopedic fastening nail having a clamping head, the fastening nail adapter includes: a clamping head 1 and a rod body 3; the clamping head 1 is provided with a first inner hole 1a which penetrates through along the axial direction of the clamping head 1, and the first inner hole 1a is used for being matched with the clamping head part of the orthopedic fixing nail; the far end of the rod body 3 is provided with an accommodating cavity 3a, the shape of the accommodating cavity 3a is matched with the shape of the outer contour of the clamping head 1, and the clamping head 1 is used for being arranged in the accommodating cavity 3 a; the rod body 3 is provided with a second inner hole arranged along the axial direction of the rod body, the far end of the second inner hole is communicated with the accommodating cavity 3a, and when the clamping head 1 is arranged in the accommodating cavity 3a, the second inner hole envelopes the extending track of the first inner hole 1a towards the near end; the fixing nail adapter is used for attracting the fixing nail for orthopedics through magnetism. Preferably, the staple adapter further comprises a connecting portion 3b, wherein the connecting portion 3b is connected with the proximal end of the rod body 3 and is used for being adaptively connected with an external auxiliary device (such as an electric tool or a handle). The cross section of the connecting part 3b may be polygonal, for example, to facilitate torque transmission after connection with an auxiliary device. The shape of the connecting portion 3b can be adapted by those skilled in the art according to the existing auxiliary instruments.

The fastening nail adapter provided in the present embodiment will be further described with reference to fig. 2 and 3. In one embodiment, as shown in fig. 2, the orthopaedic staple 4 has a short clamping head 4a, which clamping head 4a can be inserted into the first inner bore 1a of the clamping head 1. In another embodiment, as shown in fig. 3, the orthopaedic staple 4 has a longer holding head 4a, which holding head 4a can be inserted, after insertion into the first bore 1a of the holding head 1, also extending proximally into the second bore 3 c. Here, the second inner hole 3c envelops the proximal extension track of the first inner hole 1a, which means that the extension track formed by the profile of the first inner hole 1a extending towards the proximal end along the axial direction of the first inner hole 1a is enveloped by the second inner hole 3c, that is, the profile of the second inner hole 3c is greater than or equal to the profile of the first inner hole 1 a. After passing through the first bore 1a, the longer clamping head 4a enters the second bore 3c without being obstructed by the inner wall of the rod 3. From this, the staple adapter has realized the adaptation to the centre gripping head 4a of different lengths, is applicable in the orthopedics of various centre gripping head 4a that have different lengths and uses staple 4. The fixing nail adaptor can effectively prevent the falling off of the fixing nail 4 for orthopedics through magnetically attracting the fixing nail 4 for orthopedics.

In some embodiments, the clamping head 1 and/or the rod 3 itself have magnetism, and when the clamping head 1 has magnetism, it can directly attract the orthopaedic fixation nail 4, and when the rod 3 itself has magnetism and the clamping head 1 has no magnetism, the rod 3 can indirectly attract the orthopaedic fixation nail 4 through magnetism. For example, the clamping head 1 may be made of a ferromagnetic material, which means that the material exhibits ferromagnetism below the curie temperature, and exhibits paramagnetism above the curie temperature, and the ferromagnetic material can be attracted by a magnetic field, such as iron or nickel and its alloy, below the curie temperature, and the clamping head 1 can conduct magnetism from the rod 3 to indirectly achieve attraction to the orthopedic fixation nail 4.

Preferably, the staple adapter still includes magnet 2, magnet 2 the outline shape with the shape looks adaptation that holds chamber 3a, magnet 2 be used for install in hold in the chamber 3a, in order to provide the staple adapter actuation the magnetism of staple 4 for orthopedics. In a preferred embodiment, the clamping head 1 and/or the rod 3 may be non-magnetic, and the additional magnet 2 is used to generate magnetism for attracting the orthopaedic fixation nail 4. Alternatively, the gripping head 1 is made of ferromagnetic material to facilitate magnetic conduction. In an exemplary embodiment, as shown in fig. 1 to 3, the magnet 2 is disposed at the proximal end of the clamping head 1, the magnet 2 has a third inner hole 2a penetrating along its axial direction, and the third inner hole 2a envelops the extending track of the first inner hole 1a towards the proximal end. Optionally, the magnet 2 is a ring-shaped cylinder, and the contour of the third inner hole 2a is greater than or equal to the contour of the first inner hole 1a, so that the longer holding head 4a can enter or pass through the third inner hole 2a after passing through the first inner hole 1a without being obstructed by the inner wall of the magnet 2. Preferably, after the clamping head 1 and the magnet 2 are respectively installed in the accommodating cavity 3a, the first inner hole 1a, the second inner hole 3c and the third inner hole 2a are coaxially arranged.

It should be noted that the configuration of the magnet 2 in the above embodiment is only an example and not a limitation on the shape of the magnet 2, and a person skilled in the art may also configure the magnet 2 in other shapes according to practical applications, for example, a bar shape attached in the accommodating cavity 3a, and the present embodiment does not limit this. In other embodiments, the magnet 2 may be disposed at other positions, and the attraction of the orthopedic fixation nail 4 may be achieved by using the ferromagnetic rod 3 or the ferromagnetic clamping head 1 to conduct magnetism. For example, the magnet 2 may be fitted around the rod 3.

Optionally, in some embodiments, the cross-sectional shapes of the first bore 1a, the second bore 3c, and the third bore 2a are the same. In yet other embodiments, the cross-sectional shape of the second bore 3c and the cross-sectional shape of the third bore 2a can envelope the cross-sectional shape of the first bore 1a, for example, the first bore 1a is a polygonal bore and the second bore 3c and the third bore 2a are round bores. Referring to fig. 6a to 6c, three first inner holes 1a are respectively shown, and the first inner holes 1a can respectively correspond to the outer contour shape of the clamping head 4a of the conventional orthopedic fixation nail 4, so that the clamping head 1 and the orthopedic fixation nail 4 can be matched with each other to transmit torque. It is understood that when the second inner hole 3c and the third inner hole 2a are circular holes, the diameter thereof is not smaller than the diameter of the polygonal circumscribed circle of the first inner hole 1 a. It should be noted that the first inner hole 1a shown in fig. 6a to 6c is only an example and not a limitation of the first inner hole 1a, and those skilled in the art can select other shapes for the first inner hole 1a according to different shapes of the clamping head 4 a.

Referring to fig. 4, optionally, the thickness t of the clamping head 1 along the axial direction thereof is not greater than 5 mm. When the thickness t of the clamping head 1 is too large, the attraction force of the magnet 2 to the orthopedic fixing nail 4 is relatively weak, and the attraction force to the orthopedic fixing nail 4 can be influenced. If the thickness t of the chuck head 1 is too small, the torque transmission performance of the chuck head 1 to the chuck head 4a is deteriorated. The gripping head 1 should therefore be chosen with a reasonable thickness t.

Preferably, referring to fig. 5, the outer circumference of the rod body 3 is cylindrical, and the diameter phi of the rod body 3 ranges from 6mm to 12mm, so as to facilitate the use in the actual operation.

Optionally, after the clamping head 1 is installed in the accommodating cavity 3a, the clamping head 1 is limited to rotate circumferentially relative to the rod 3. In some embodiments, the clamping head 1 may be installed in the accommodating cavity 3a by gluing, clamping, or welding, so that the clamping head 1 is fixedly connected to the rod 3. In other embodiments, the circumference of the gripping head 1 may also have a protruding limiting portion, and after the limiting portion is engaged with the accommodating cavity 3a, the limiting portion is limited by the accommodating cavity 3a, so that the gripping head 1 cannot rotate. For example, if the outer periphery of the gripping head 1 has a hexagonal shape, six corners of the hexagonal shape are configured as stopper portions; suitably, the cross section of the accommodating cavity 3a is hexagonal. So the configuration, holding head 1 is for dismantling the replacement for the body of rod 3, and a plurality of different holding heads 1 can be replaced to same body of rod 3 to the staple 4 for the orthopedics of the multiple difference of adaptation.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.

Claims

1. The utility model provides a staple adapter for connect the orthopedics that has centre gripping head and use staple, its characterized in that includes: a clamping head and a rod body;

2. The staple adapter of claim 1, wherein said clamping head is magnetic, or

3. The staple adapter of claim 1, further comprising a magnet, wherein the magnet has an outer shape adapted to the shape of the accommodating cavity, and the magnet is disposed in the accommodating cavity to provide magnetism for attracting the staple adapter to the orthopedic staple.

4. The staple adapter of claim 3, wherein said magnet is disposed at a proximal end of said gripping head, said magnet having a third bore therethrough in an axial direction thereof, said third bore enveloping a proximal extent of said first bore.

5. The fastener adapter of claim 4, wherein said first bore, said second bore, and said third bore are coaxially disposed when said clamp head and said magnet are respectively disposed in said receiving cavity.

6. The staple adapter of claim 4, wherein said first bore, said second bore, and said third bore are identical in cross-sectional shape, or

7. The fastener adapter of claim 6, wherein said first bore is a polygonal bore, and said second and third bores are circular bores.

8. The staple adapter of claim 1, further comprising a connector coupled to the proximal end of the shaft for mating with an external accessory.

9. The fastener adapter of claim 1, wherein the thickness of the clamp head in the axial direction of the clamp head is no greater than 5 mm.

10. The staple adapter of claim 1, wherein said shank has a cylindrical outer perimeter and a diameter in the range of 6mm to 12 mm.