Medical bone fixing nail

Abstract

The utility model discloses a medical skeleton fixing nail, and relates to the field of medical instruments. The bone fixing nail comprises a bone fixing nail, a thread lapping seat, a thread clamping pile and a dismounting seat, the thread lapping seat comprises a sleeve seat, a spring groove is formed in the inner wall of the sleeve seat, and through the arrangement of the thread lapping seat, the spring groove, a spring, a clamping ball and the thread clamping pile, when bone fixing nail operation is carried out on a patient, firstly, a plurality of nail heads need to penetrate into the sleeve seat; then, it is ensured that the fixing block and the sleeve base are in a clamped connection state, then a plurality of nail heads need to be driven into a fracture position or a position where bone correction needs to be conducted, then a wire needs to be pulled to be placed into a wiring groove according to the situation, then a wire pressing column needs to be arranged in the sleeve base, and a clamping ball can be clamped into a clamping groove under the pushing effect of a spring; therefore, it is ensured that the wire pressing column can be effectively locked and fixed to the sleeve base, the wire pressing column is prevented from falling off due to operation, and meanwhile the installation difficulty of the wire pressing column can be lowered.

Description

Technical Field

[0001] The utility model relates to the field of medical appliances, in particular to a medical bone fixation nail. Background Art

[0002] Bone nails are a commonly used surgical instrument in orthopedics. Bone nail insertion can also be called bone puncture, bone traction or internal fixation surgery. Usually in the case of limb fractures, because the displacement of the fracture ends is relatively obvious, bone traction is usually performed before the operation. That is, Kirschner wires are inserted at both ends or one end of the fracture, and then heavy objects are used to pull the affected limb to achieve the purpose of reducing local pain and bleeding and resetting the fracture. Bone nails are also suitable for internal fixation surgery for bone degenerative diseases. They are often used in spinal surgery in clinical practice, such as lumbar disc herniation, cervical spondylosis, etc.

[0003] During the use of existing medical bone fixation nails, the bone-penetrating nail and the wire mount are first installed and then installed on the damaged bone. After that, the traction wire needs to be placed in the wire mount and fixed with a wire post. During this process, the doctor needs to use his clinical experience to effectively determine that the wire post is completely against the traction wire through the placement of the threaded rotation. Moreover, some novices may even fail to tighten the wire post or it may be biased upward due to lack of experience when performing this operation. Therefore, it is necessary to provide a novel wire mount and wire post, which only need to be rotated during use. When the rotation is appropriate, the doctor will be reminded by locking. At the same time, it can avoid the wire post from falling off due to failure to tighten. Medical accidents and other problems. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a medical bone fixation nail to solve the technical problem that the wire pile may not be tightened when the traditional bone fixation nail is used by an inexperienced doctor.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a medical bone fixation nail, comprising a bone-penetrating nail, a wire-taking seat, a wire-holding pile and a disassembly seat, the wire-taking seat comprising a sleeve seat, the inner wall of the sleeve seat is provided with a spring groove, a spring is arranged inside the spring groove, one side of the spring is abutted with a clamping bead, the wire-holding pile comprises a wire pressing column, the outer side of the wire pressing column is provided with a clamping groove, the inner wall of the wire-holding pile is rotatably connected with a movable baffle, and the clamping bead is engaged with the clamping groove.

[0006] By adopting the above technical solution, the wire mounting seat includes a sleeve, the inner wall of the sleeve is provided with a spring groove, a spring is arranged inside the spring groove, one side of the spring is abutted with a card bead, the spring can support the card bead, and at the same time can ensure that the card bead will not hinder the entry of the wire holding pile, and can ensure that the card bead can enter the interior of the card slot.

[0007] Furthermore, the disassembly seat includes a threaded block, a rotation hole is provided on the top of the threaded block, and a threaded groove is provided on the top of the wire-holding pile.

[0008] By adopting the above technical solution, the disassembly seat includes a threaded block, and a rotation hole is opened on the top of the threaded block, and the threaded block can be tightened or disassembled through the rotation hole.

[0009] Furthermore, the thread groove is meshed with the thread block, and the thread block is abutted against the movable baffle.

[0010] By adopting the above technical solution, the thread groove is meshed with the thread block, so the thread block can be effectively installed inside the thread groove.

[0011] Furthermore, a wedge-shaped surface is provided at the bottom of the sleeve, and a thread is provided on the wedge-shaped surface.

[0012] By adopting the above technical solution, a wedge-shaped surface is provided at the bottom of the sleeve, and the wedge-shaped surface can ensure that the sleeve can effectively contact the bone and ensure the firmness of the sleeve and the bone.

[0013] Furthermore, the bone-penetrating screw comprises a fixing block, a nail head is arranged at the bottom of the fixing block, and the nail head is connected with the bottom of the sleeve, and the fixing block is engaged with the sleeve.

[0014] By adopting the above technical solution, the bone-penetrating nail includes a fixing block, and a nail head is arranged at the bottom of the fixing block, and the nail head can be effectively rotated into the inside of the bone.

[0015] Furthermore, wiring grooves are provided on both sides of the sleeve, through holes are provided at both ends of the sleeve, and traction wires are placed inside the wiring grooves.

[0016] By adopting the above technical solution, since wiring grooves are provided on both sides of the sleeve, the traction wires can be placed economically and effectively through the wiring grooves.

[0017] Furthermore, the wire pressing post is engaged with the sleeve through a thread, and the wire pressing post is in contact with the traction wire.

[0018] By adopting the above technical solution, since the crimping post is engaged with the sleeve through the thread, the sleeve can effectively ensure that the crimping post can be installed normally.

[0019] Furthermore, the bone-penetrating screw, the wire-engaging seat, the wire-holding pile and the disassembly seat are all made of titanium alloy, and the rotating hole is compatible with an external disassembly tool.

[0020] By adopting the above technical solution, since the bone-penetrating screws, the wire-taking seats, the wire-holding piles and the removal seats are all made of titanium alloy, the bone-penetrating screws, the wire-taking seats, the wire-holding piles and the removal seats will not have an immune rejection reaction with the skeleton muscles.

[0021] In summary, the utility model mainly has the following beneficial effects:

[0022] 1. The utility model is provided with a wire mounting seat, a spring groove, a spring, a clamping bead, and a wire clamping pile. When performing bone fixation nailing operation on a patient, it is first necessary to insert multiple nail heads into the interior of the sleeve, and then ensure that the fixing block and the sleeve are in a clamping state, and then it is necessary to drive multiple nail heads into the fracture or the position where bone correction is required, and then it is necessary to put the traction wire into the wiring groove according to the situation, and then it is necessary to put the wire pressing column into the interior of the sleeve, and after the wire pressing column rotates to a certain extent, the clamping bead will be clamped into the interior of the clamping groove under the action of the spring, ensuring that the wire pressing column can be effectively locked and fixed with the sleeve, avoiding the wire pressing column from falling off due to operational reasons, and at the same time reducing the difficulty of installing the wire pressing column;

[0023] 2. The utility model provides a disassembly seat. When the bone fixation nail needs to be disassembled, the thread block can be rotated into the interior of the thread groove. Since the inner wall of the thread groove is provided with a movable baffle, the card bead will not be hindered after entering the card groove. At this time, the movable baffle is blocked by the thread block to ensure that the card bead can be squeezed out from the interior of the card groove. After that, the locked state of the sleeve and the wire pressing column can be quickly unlocked to facilitate the disassembly of the bone fixation nail. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 It is a side view stereoscopic structural schematic diagram of the utility model;

[0026] Figure 3 It is a side view cross-sectional three-dimensional structure schematic diagram of the utility model;

[0027] Figure 4 For this utility model Figure 3 Schematic diagram of the structure enlarged at point A in the middle.

[0028] In the figure: 1. bone nail; 101. nail head; 102. fixing block; 2. wire mounting seat; 201. sleeve seat; 202. wire routing groove; 203. through hole; 204. spring groove; 205. spring; 206. clamping bead; 207. wedge-shaped surface; 3. clamping pile; 301. wire pressing column; 302. clamping groove; 303. movable baffle; 304. threaded groove; 4. disassembly seat; 401. threaded block; 402. rotating hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0030] The following describes an embodiment of the utility model based on its overall structure.

[0031] Embodiment 1:

[0032] A medical bone fixation nail, such as Figure 1-Figure 4 As shown, it includes a bone screw 1, a wire mounting seat 2, a wire clamping post 3 and a disassembly seat 4. The wire mounting seat 2 includes a sleeve 201. The inner wall of the sleeve 201 is provided with a spring groove 204. A spring 205 is arranged inside the spring groove 204. A clamping bead 206 abuts against one side of the spring 205. The wire clamping post 3 includes a wire pressing column 301. A clamping groove 302 is arranged on the outer side of the wire pressing column 301. A movable baffle 303 is rotatably connected to the inner wall of the wire clamping post 3. The clamping bead 206 is clamped with the clamping groove 302. The clamping bead 206 can be supported by the spring 205. At the same time, it can be ensured that the clamping bead 206 will not hinder the entry of the wire mounting post 3, and it can be ensured that the clamping bead 206 can enter the interior of the clamping groove 302, and the clamping bead 206 can well enter the interior of the clamping groove 302 and be clamped and locked.

[0033] See also Figure 1 , Figure 2 The disassembly seat 4 includes a threaded block 401, a rotation hole 402 is opened on the top of the threaded block 401, and a threaded groove 304 is opened on the top of the wire clamping pile 3. The threaded block 401 can be tightened or disassembled through the rotation hole 402, and the threaded block 401 can be effectively installed through the threaded groove 304, so as to facilitate the subsequent removal of the wire clamping pile 3.

[0034] See also Figure 1 , Figure 3 The thread groove 304 is meshed with the thread block 401, and the thread block 401 is in contact with the movable baffle 303, so the thread block 401 can be effectively installed inside the thread groove 304, and the thread block 401 can effectively block the movable baffle 303 to prevent the movable baffle 303 from moving.

[0035] See also Figure 1 , Figure 2 , Figure 4 A wedge-shaped surface 207 is provided at the bottom of the sleeve 201, and a thread is provided on the wedge-shaped surface 207. The wedge-shaped surface 207 can ensure that the sleeve 201 can effectively contact the bone and ensure the firmness of the sleeve 201 and the bone, and the wedge-shaped surface 207 can also enter the interior of the bone.

[0036] Embodiment 2:

[0037] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The bone-penetrating screw 1 includes a fixing block 102, a screw head 101 is provided at the bottom of the fixing block 102, and the screw head 101 is connected with the bottom of the sleeve 201, the fixing block 102 is engaged with the sleeve 201, and the screw head 101 can be effectively rotated into the bone, and the sleeve 201 can be effectively installed and fixed through the fixing block 102.

[0038] See also Figure 1 , Figure 4 , wiring grooves 202 are opened on both sides of the sleeve 201, and through holes 203 are opened at both ends of the sleeve 201. The traction line is placed inside the wiring grooves 202. The wiring grooves 202 can save and effectively place the traction line, and the through holes 203 can ensure the installation comfort of the sleeve 201.

[0039] See also Figure 1 , Figure 4 The wire pressing post 301 is meshed with the sleeve 201 through a thread, and the wire pressing post 301 is in contact with the traction line, so the sleeve 201 can effectively ensure that the wire pressing post 301 can be installed normally, and the traction line will be clamped and fixed by the wire pressing post 301.

[0040] See also Figure 1 , Figure 4 The bone screw 1, the wire mounting seat 2, the wire retaining post 3 and the disassembly seat 4 are all made of titanium alloy, and the rotating hole 402 is compatible with the external disassembly tool. Therefore, the bone screw 1, the wire mounting seat 2, the wire retaining post 3 and the disassembly seat 4 will not have an immune reaction with the bone muscles, and the entire bone fixation screw can be disassembled through the rotating hole 402.

[0041] The implementation principle of the utility model is as follows: first, multiple nail heads 101 need to be inserted into the interior of the sleeve 201, and then ensure that the fixing block 102 and the sleeve 201 are in a clamping state, and then multiple nail heads 101 need to be driven into the fracture or the position where the bone correction is required, and then the traction line needs to be put into the wiring groove 202 according to the situation, and then the pressing post 301 needs to be placed in the interior of the sleeve 201. After the pressing post 301 rotates to a certain extent, the card bead 206 will be inserted into the interior of the card groove 302 under the action of the spring 205, ensuring that the pressing post 301 can be effectively locked and fixed with the sleeve 201, avoiding the pressing post 301 from falling off due to operational reasons, and at the same time reducing the difficulty of installing the pressing post 301:

[0042] Afterwards, when the bone fixing nail needs to be removed, the threaded block 401 can be rotated into the interior of the threaded groove 304. Since the inner wall of the threaded groove 304 is provided with a movable baffle 303, the card bead 206 will not be hindered after entering the card groove 302. At this time, the movable baffle 303 is blocked by the threaded block 401 to ensure that the card bead 206 can be squeezed out from the inside of the card groove 302. After that, the locked state of the sleeve 201 and the wire pressing column 301 can be quickly unlocked to facilitate the removal of the bone fixing nail.

[0043] Parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here.

[0044] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A medical bone fixation nail, characterized in that: The invention comprises a bone-penetrating screw (1), a wire-laying seat (2), a wire-locking pile (3) and a disassembly seat (4); the wire-laying seat (2) comprises a sleeve seat (201); a spring groove (204) is provided on the inner wall of the sleeve seat (201); a spring (205) is arranged inside the spring groove (204); a clamping bead (206) is abutted against one side of the spring (205); the wire-locking pile (3) comprises a wire-pressing column (301); a clamping groove (302) is provided on the outer side of the wire-pressing column (301); a movable baffle (303) is rotatably connected to the inner wall of the wire-locking pile (3); and the clamping bead (206) is clamped with the clamping groove (302).

2. The medical bone fixation nail according to claim 1, characterized in that: The disassembly seat (4) comprises a threaded block (401), a rotation hole (402) is provided at the top of the threaded block (401), and a threaded groove (304) is provided at the top of the wire-holding pile (3).

3. The medical bone fixation nail according to claim 2, characterized in that: The thread groove (304) is meshed with the thread block (401), and the thread block (401) is in contact with the movable baffle (303).

4. The medical bone fixation nail according to claim 1, characterized in that: The bottom of the sleeve (201) is provided with a wedge-shaped surface (207), and a thread is provided on the wedge-shaped surface (207).

5. The medical bone fixation nail according to claim 1, characterized in that: The bone-penetrating nail (1) comprises a fixing block (102), a nail head (101) is arranged at the bottom of the fixing block (102), and the nail head (101) is connected with the bottom of the sleeve (201), and the fixing block (102) and the sleeve (201) are engaged.

6. The medical bone fixation nail according to claim 1, characterized in that: The sleeve (201) is provided with wiring grooves (202) on both sides, and through holes (203) are provided at both ends of the sleeve (201). A traction line is placed inside the wiring groove (202).

7. The medical bone fixation nail according to claim 1, characterized in that: The wire pressing post (301) is meshed with the sleeve (201) via a thread, and the wire pressing post (301) is in contact with the traction line.

8. The medical bone fixation nail according to claim 2, characterized in that: The bone-penetrating screw (1), the wire-engaging seat (2), the wire-holding pile (3) and the disassembly seat (4) are all made of titanium alloy, and the rotating hole (402) is compatible with an external disassembly tool.

Images