CN219557521U

CN219557521U - Special bone nail of orthopedics of easily taking out

Info

Publication number: CN219557521U
Application number: CN202320614922.6U
Authority: CN
Inventors: 刘正
Original assignee: Suzhou Zhengfeng Weina Technology Co ltd
Current assignee: Suzhou Zhengfeng Weina Technology Co ltd
Priority date: 2023-03-27
Filing date: 2023-03-27
Publication date: 2023-08-22
Anticipated expiration: 2033-03-27

Abstract

The utility model belongs to the technical field of medical appliances, in particular to an easy-to-take-out bone nail special for orthopaedics, which comprises a bone nail main body, wherein the upper end of the bone nail main body is fixedly connected with a nail cap.

Description

Special bone nail of orthopedics of easily taking out

Technical Field

The utility model belongs to the technical field of medical treatment, and particularly relates to an easy-to-take-out bone nail special for orthopaedics.

Background

Along with the development of science and technology, the improvement of medical level, in order to conveniently treat patient, various medical instruments appear, wherein in orthopedics field, often can use the bone nail to carry out traction treatment to patient's fracture department, the bone nail is the non-active surgical metal implant for the bone joint, belongs to an orthopedics internal fixation instrument, because the skeleton is grown in the use, is blocked by the skeleton easily, is unfavorable for taking out, takes out the broken condition of bone nail easily by force, probably causes the secondary injury of skeleton to the patient.

Patent document CN213758508U discloses a medical orthopedics special bone nail of taking out easily, including screwing up the pin head, the fixed connecting pipe that is provided with in lower extreme of screwing up the pin head, the fixed screw head that is provided with in lower extreme of connecting pipe, the inside activity joint of connecting pipe has the spliced pole, the upper end central authorities department of screwing up the pin head runs through and has seted up the through-hole, the top and the through-hole joint of spliced pole, the equal vertical direction of symmetry both ends lateral wall of connecting pipe runs through and has seted up logical groove, two logical inslot portion equal joint has the connecting plate. Through setting up screw pin head, connecting pipe, screw pin head, plug-in pole, through-hole, logical groove, connecting plate, limiting plate and fixed plate's cooperation use, solved current special bone nail of medical orthopedics, because install on human skeleton when taking out, the skeleton is grown, is blocked by the skeleton easily, is unfavorable for taking out, takes out to take place the cracked condition of bone nail by force easily, also probably causes the problem of the secondary injury of skeleton.

The special bone nail of orthopedics in above-mentioned document still exists the place that can improve in the use, and it is when taking out, needs to take out the plug rod from the connecting pipe in earlier, and then makes the fixed plate shrink, realizes that the bone nail diameter diminishes, reaches the purpose of being convenient for take out, because the skeleton is grown, and the skeleton of growth can extrude the fixed plate and make limiting plate closely laminate with the plug tube, leads to the plug tube to be difficult to take out, causes the hindrance to taking out the bone nail.

Based on the above, the utility model designs an easy-to-take-out bone nail special for orthopaedics, so as to solve the problems.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides the special bone nail for orthopaedics, which is easy to take out and has the characteristics of convenience for taking out the bone nail and stronger practicability.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a special bone nail of orthopedics of easy taking out, includes the bone nail main part, the upper end fixedly connected with nail cap of bone nail main part, set up flutedly on the nail cap, the inside movable mounting of bone nail main part has adjustment mechanism, adjustment mechanism includes positive and negative lead screw, positive and negative lead screw sets up the inside at the bone nail main part, the top fixedly connected with of positive and negative lead screw is twisted the head soon, it sets up in the nail cap to twist the head soon, the lower extreme movable mounting of positive and negative lead screw is in the nail head, screwed connection has two linkage blocks on the positive and negative lead screw, annular distribution has four first mount pads on the linkage block, equal movable mounting has the connecting rod in the first mount pad, the one end of connecting rod movable mounting respectively on the inside wall of backup pad.

As a preferable technical scheme of the utility model, the bone nail main body comprises a cylinder body, four strip-shaped grooves are formed in the side face of the cylinder body, and the connecting rods are respectively arranged in the strip-shaped grooves and are movably connected with the supporting plate.

As a preferable technical scheme of the utility model, the supporting plate comprises a plate body, threads are arranged on the outer side of the plate body, two second mounting seats are fixedly connected to the inner side wall of the plate body, and the second mounting seats are movably connected with the connecting rod.

As a preferable technical scheme of the utility model, the nail cap comprises a cap body, a round groove is formed in the cap body, and the screwing head is arranged in the round groove.

As a preferable technical scheme of the utility model, the nail head comprises a head body, a mounting groove is formed in the head body, and the bottom ends of the forward and reverse lead screws are movably connected in the mounting groove.

As an optimized technical scheme of the utility model, the two linkage blocks which are spirally connected on the forward and reverse lead screws can perform forward and reverse movement on the forward and reverse lead screws, and a limiting ring is arranged at the center of the forward and reverse lead screws.

As a preferable technical scheme of the utility model, the bone screw main body, the screw cap, the screw head and the supporting plate are all made of titanium alloy, and the adjusting mechanism is made of stainless steel.

Compared with the prior art, the utility model has the beneficial effects that:

1. when the bone nail is used, the screw nail is required to be taken out, the screwing head arranged in the circular groove is screwed clockwise to drive the forward and reverse screw rod to rotate in the bone nail main body, and the two linkage blocks on the forward and reverse screw rod are moved in the opposite direction on the forward and reverse screw rod through the rotation of the forward and reverse screw rod, so that the four support plates are driven to be folded and separated from bones, the bone nail can be easily taken out from the bones, the aim of easy taking out of the bone nail is achieved, and when the bone nail is required to be supported, the four support plates can be supported by only rotating the screwing head anticlockwise to enable the two linkage blocks on the forward and reverse screw rod to move in the opposite direction;

2. when the screw nail adjusting device is used, the bone nail can be conveniently installed into the bone of a patient through the rotation of the screw thread on the plate body through the supporting plate, the plate body can be installed on the two linkage blocks on the forward and reverse screw rods under the action of the two second installation seats on the inner side wall of the plate body, and the supporting plate can be conveniently contracted or expanded through the adjusting mechanism, so that the purpose of adjusting the diameter of the bone nail is achieved, and the purpose of conveniently taking out the bone nail is achieved.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic overall sectional view of the present utility model;

FIG. 3 is a schematic view of the overall explosive structure of the present utility model;

FIG. 4 is a schematic cross-sectional view of the main body of the bone screw of the present utility model;

FIG. 5 is a schematic view of a support plate structure according to the present utility model;

fig. 6 is a schematic structural view of an adjusting mechanism of the present utility model.

In the figure: 1. a bone screw body; 101. a cylinder; 102. a bar-shaped groove; 2. a nail cap; 201. a cap body; 202. a circular groove; 3. a pin head; 301. a head body; 302. a mounting groove; 4. an adjusting mechanism; 401. forward and reverse lead screws; 402. screwing the head; 403. a linkage block; 404. a first mount; 405. a connecting rod; 5. a support plate; 501. a plate body; 502. a thread; 503. a second mounting base; 6. a groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-6, the present utility model provides the following technical solutions: the utility model provides an easy special bone nail of orthopedics that takes out, including bone nail main part 1, the upper end fixedly connected with nail cap 2 of bone nail main part 1, set up fluted 6 on the nail cap 2, the inside movable mounting of bone nail main part 1 has adjustment mechanism 4, adjustment mechanism 4 includes positive and negative lead screw 401, positive and negative lead screw 401 sets up the inside at bone nail main part 1, the top fixedly connected with of positive and negative lead screw 401 is screwed first 402, it sets up in the nail cap 2 to screw first 402, the lower extreme movable mounting of positive and negative lead screw 401 is in the pin head 3, screw connection has two linkage piece 403 on the positive and negative lead screw 401, annular distribution has four first mount pad 404 on the linkage piece 403, equal movable mounting has connecting rod 405 in the first mount pad 404, the one end of connecting rod 405 is movable mounting respectively on the inside wall of backup pad 5.

Referring to fig. 1 and 6, in specific use, under the action of the forward and reverse lead screws 401, the two linkage blocks 403 can have opposite or reverse movement capability, so as to achieve the effect of driving the four support plates 5 to fold or open.

The bone screw main body 1 comprises a cylinder 101, four strip-shaped grooves 102 are formed in the side face of the cylinder 101, and connecting rods 405 are respectively arranged in the strip-shaped grooves 102 and are movably connected with the supporting plate 5.

Referring to fig. 2 and 4, in particular, the screwing head 402 is enabled to move up and down in the bone screw main body 1 under the action of the strip-shaped groove 102.

The backup pad 5 includes plate body 501, and the outside of plate body 501 all is provided with screw thread 502, and fixedly connected with two second mount pad 503 on the inside wall of plate body 501, second mount pad 503 carries out swing joint with connecting rod 405.

Referring to fig. 5, in specific use, the bone nail is conveniently installed under the action of the screw thread 502, and the bone can be supported and fixed under the action of the plate 501, so as to achieve the fixing effect.

The nail cap 2 comprises a cap body 201, a round groove 202 is formed in the cap body 201, and a screwing head 402 is arranged in the round groove 202.

Referring to fig. 4, in specific use, the screwing head 402 at the upper end of the forward and reverse screw 401 can be limited and fixed under the action of the circular groove 202.

The nail head 3 comprises a head body 301, a mounting groove 302 is formed in the head body 301, and the bottom end of the forward and reverse screw rod 401 is movably connected in the mounting groove 302.

Referring to fig. 4, in specific use, the lower end of the forward and reverse screw 401 can be fixed under the action of the mounting groove 302.

The two linkage blocks 403 which are spirally connected on the forward and reverse lead screws 401 can perform forward and reverse movement on the forward and reverse lead screws 401, and a limiting ring is arranged at the center of the forward and reverse lead screws 401.

Referring to fig. 6, in specific use, the movement of the two linkage blocks 403 can be limited by the limiting rings provided on the forward and reverse screws 401.

The bone screw main body 1, the screw cap 2, the screw head 3 and the supporting plate 5 are all made of titanium alloy, and the adjusting mechanism 4 is made of stainless steel.

The working principle and the using flow of the utility model are as follows: in the use process of the utility model, when the screw nail needs to be taken out, the screwing head 402 is rotated clockwise by using a tool, so that the screwing head 402 drives the forward and reverse screw rods 401 to rotate clockwise, the clockwise rotation of the forward and reverse screw rods 401 can lead two linkage blocks 403 which are spirally connected on the forward and reverse screw rods 401 to move in opposite directions on the forward and reverse screw rods 401, the opposite movement of the two forward and reverse screw rods 401 can respectively drive the four support plates 5 to fold by the connecting rods 405, the folding movement of the four support plates 5 can lead the support plates 5 to be separated from contact with bones, and then the bone nail can be taken out from the bones by the nail extractor, thereby achieving the aim of easy taking out, avoiding the phenomenon of blocking and improving the practicability of the bone nail.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides an orthopedics special bone nail of easily taking out, includes bone nail main part (1), its characterized in that: the bone screw comprises a bone screw main body (1), wherein the upper end of the bone screw main body (1) is fixedly connected with a screw cap (2), a groove (6) is formed in the screw cap (2), an adjusting mechanism (4) is movably arranged in the bone screw main body (1), the adjusting mechanism (4) comprises a forward and reverse screw (401), the forward and reverse screw (401) is arranged in the bone screw main body (1), the top end of the forward and reverse screw (401) is fixedly connected with a screwing head (402), the screwing head (402) is arranged in the screw cap (2), the lower end of the forward and reverse screw (401) is movably arranged in a screw head (3), two linkage blocks (403) are spirally connected to the forward and reverse screw (401), connecting rods (405) are movably arranged in the first mounting seats (404), and one ends of the connecting rods (405) are movably arranged on the inner side walls of a supporting plate (5) respectively;

the bone screw main body (1) comprises a cylinder body (101), four strip-shaped grooves (102) are formed in the side face of the cylinder body (101), and connecting rods (405) are respectively arranged in the strip-shaped grooves (102) and are movably connected with a supporting plate (5).

2. The bone screw for orthopaedics special for easy taking out according to claim 1, wherein: the support plate (5) comprises a plate body (501), threads (502) are arranged on the outer side of the plate body (501), two second installation seats (503) are fixedly connected to the inner side wall of the plate body (501), and the second installation seats (503) are movably connected with the connecting rod (405).

3. The bone screw for orthopaedics special for easy taking out according to claim 1, wherein: the nail cap (2) comprises a cap body (201), a round groove (202) is formed in the cap body (201), and the screwing head (402) is arranged in the round groove (202).

4. The bone screw for orthopaedics special for easy taking out according to claim 1, wherein: the nail head (3) comprises a head body (301), a mounting groove (302) is formed in the head body (301), and the bottom end of the forward and reverse screw rod (401) is movably connected in the mounting groove (302).

5. The bone screw for orthopaedics special for easy taking out according to claim 1, wherein: the two linkage blocks (403) which are spirally connected on the forward and reverse lead screws (401) can perform forward and reverse movement on the forward and reverse lead screws (401), and a limiting ring is arranged at the center of the forward and reverse lead screws (401).

6. The bone screw for orthopaedics special for easy taking out according to claim 1, wherein: the bone screw comprises a bone screw main body (1), a screw cap (2), a screw head (3) and a supporting plate (5), wherein the bone screw main body, the screw cap and the screw head are made of titanium alloy, and the adjusting mechanism (4) is made of stainless steel.