Metacarpal bone, radius, and external fixation bracket for metacarpal bone and radius

Abstract

The present invention discloses a metacarpal bone, a radius, and an external fixation bracket for the metacarpal bone and the radius, wherein the metacarpal bone external fixation bracket comprises a first bracket and a first clamping needle seat and a first pressurized clamping needle seat movably arranged on the first bracket along the length direction of the first bracket; the first bracket is movably connected to a second clamping needle seat at one end away from the first pressurized clamping needle seat; the other end of the first bracket and both sides of the first bracket are provided with a connecting slot. The present invention provides a metacarpal bone external fixation bracket and a radius external fixation bracket, and the metacarpal bone external fixation bracket and the radius external fixation bracket are connected through a connecting slot and a universal connecting plug to form a metacarpal bone and radius external fixation bracket, which can provide targeted treatment for metacarpal bone fractures, radius fractures, and simultaneous fractures of the metacarpal bone and the radius, while ensuring a stable fixation effect, improving the patient's comfort and promoting rapid recovery of the fracture site.

Description

Technical Field

[0001] The invention relates to the technical field of orthopedic medical devices, and in particular to a metacarpal bone, a radius, and a metacarpal bone and radius external fixation bracket. Background Art

[0002] When a person falls while riding a bicycle, the human body's subconscious reaction is to use the hands to support, and the hands are often the most seriously injured part. Hand injuries mainly include metacarpal fractures, radius fractures, and fractures of both the metacarpal and radius bones. The above fractures are generally treated with external fixators. However, existing external fixators are unable to fix the above-mentioned fracture sites in a targeted manner, resulting in limited fixation effects, and are difficult to adapt to the personalized needs of different patients. At the same time, there are very few external fixators for the treatment of simultaneous fractures of the metacarpal and radius bones, which to a certain extent limits the effect of fracture treatment and the patient's recovery speed. In addition, existing external fixators have the defects of inflexible structure and inconvenient adjustment, which increases the operation time and increases the patient's pain.

[0003] Therefore, it is necessary to design a metacarpal bone, a radius, and a metacarpal bone and radius external fixation bracket to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the deficiencies of the prior art and to provide a metacarpal bone, a radius and an external fixation bracket for the metacarpal bone and the radius.

[0005] The technical solution of the present invention is: a metacarpal external fixation bracket, comprising a first bracket and a first needle clamp seat and a first pressurized needle clamp seat movably arranged on the first bracket along the length direction of the first bracket; the first bracket is movably connected to the second needle clamp seat at one end away from the first pressurized needle clamp seat; the other end of the first bracket and both sides of the first bracket are provided with a connecting slot.

[0006] A first through groove is provided in the middle of the first bracket; a first screw rod with an outer end extending out of the first bracket is rotatably connected in the first through groove, and an inner hexagonal groove is provided at the outer end of the first screw rod; the first clamping needle seat and the first pressurized clamping needle seat can both be slidably connected in the first through groove in a locking manner; the first screw rod passes through the first pressurized clamping needle seat and the first clamping needle seat in sequence, and the first screw rod is threadedly connected to the first pressurized clamping needle seat.

[0007] A connecting portion is provided at the end of the first bracket; the second needle clamp seat is rotatably connected to the connecting portion through a bolt.

[0008] A radial external fixation bracket comprises a second bracket and a third bracket; the second bracket is connected to the third bracket via a universal adjustment mechanism; a third clamping needle seat and a second pressurized clamping needle seat are movably provided on the second bracket; the third bracket is provided with two fourth clamping needle seats that can move along the length direction of the third bracket; the third bracket is provided with a universal connecting plug that can cooperate with a connecting slot at one end away from the third bracket connected to the second bracket.

[0009] A second through groove is provided in the middle of the second bracket; a second screw rod with an outer end extending out of the second bracket is rotatably connected in the second through groove, and an inner hexagonal groove is provided at the outer end of the second screw rod; the third clamping needle seat and the second pressurized clamping needle seat can be slidably connected in the second through groove in a locking manner; the first screw rod passes through the second pressurized clamping needle seat and the third clamping needle seat in sequence, and the second pressurized clamping needle seat is threadedly connected to the second screw rod.

[0010] A third through slot is provided in the middle of the third bracket; the two fourth needle clamping seats can be locked and slidably connected in the third through slot.

[0011] The universal adjustment mechanism includes a first connecting ball head and a second connecting ball head; the first connecting ball head is provided with a first connecting column fixed to the second connecting ball head; the first connecting ball head and the second connecting ball head are respectively connected to the ends of the second bracket and the third bracket through threaded sleeves; the ends of the second bracket and the third bracket are respectively provided with positioning holes for the first connecting ball head end and the second connecting ball head end to extend into, and the two positioning holes are respectively provided with a first concave ball pad and a second concave ball pad matching the first connecting ball head end and the second connecting ball head end; the end of the second bracket is provided with a first locking column that drives the first concave ball pad to lock the first connecting ball head by rotation; the end of the third bracket is provided with a second locking column that drives the second concave ball pad to lock the second connecting ball head by rotation.

[0012] The universal connecting plug includes a third connecting ball head; the third connecting ball head is connected to an insert block matching the connecting slot through a second connecting column; the third connecting ball head is connected to the end of the third bracket away from the connection with the second bracket through a threaded sleeve; and the end of the third bracket away from the connection with the second bracket is provided with a positioning hole for the end of the third connecting ball head to extend into; a third concave ball pad matching the end of the third connecting ball head is provided in the positioning hole; the end of the third bracket away from the connection with the second bracket is also provided with a third locking column that drives the third concave ball pad to lock the third connecting ball head by rotation.

[0013] The third needle clamping seat, the second pressurized needle clamping seat and the two fourth needle clamping seats can all be adjusted 360° in the circumferential direction.

[0014] A metacarpal and radius external fixation bracket comprises a metacarpal external fixation bracket and a plurality of radius external fixation brackets; the plurality of radius external fixation brackets are connected to a connection slot on the metacarpal external fixation bracket through a universal connection plug on the radius external fixation bracket.

[0015] By adopting the above technical scheme, the present invention has the following beneficial effects: the present invention provides a metacarpal external fixator and a radius external fixator, and the metacarpal external fixator and the radius external fixator are connected through a connecting slot and a universal connecting plug to form a metacarpal and radius external fixator, which can treat metacarpal fractures, radius fractures and simultaneous fractures of the metacarpal and radius in a targeted manner, while ensuring a stable fixation effect, improving the patient's comfort and promoting rapid recovery of the fracture site. In addition, the present invention connects the radius external fixator to the metacarpal external fixator through a universal connecting plug, and connects the second bracket and the third bracket through a universal adjusting mechanism. This connection method can ensure that the metacarpal and radius external fixators have the advantages of flexible structure and convenient adjustment during treatment, saving operation time and reducing the pain of patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic structural diagram of the metacarpal bone external fixation bracket of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the radius external fixator of the present invention.

[0019] Figure 3 It is a cross-sectional view of the radius external fixator of the present invention.

[0020] Figure 4 It is a schematic diagram of the matching structure of a metacarpal bone external fixation bracket and a radius external fixation bracket of the present invention.

[0021] Figure 5 for Figure 4 Side view of.

[0022] Figure 6 It is a schematic diagram of the matching structure of the metacarpal bone external fixation bracket and three radius external fixation brackets of the present invention.

[0023] The reference numerals in the accompanying drawings are:

[0024] A first bracket 1, a first clamping needle seat 2, a first pressurized clamping needle seat 3, a second clamping needle seat 4, a connecting slot 5, a connecting part 6, and a bolt 7;

[0025] The second bracket 8, the third bracket 9, the universal adjustment mechanism 10, the first connecting ball head 10-1, the second connecting ball head 10-2, the first connecting column 10-3, the first concave ball pad 10-4, the second concave ball pad 10-5, the first locking column 10-6, the second locking column 10-7, the third clamping needle seat 11, the second pressurized clamping needle seat 12, the fourth clamping needle seat 13, the universal connecting plug 14, the third connecting ball head 14-1, the second connecting column 14-2, the insert block 14-3, the third locking column 14-4, the mounting seat 15, the fixing block 16, the lower clamping block 17, the locking screw 18, the upper clamping block 19, and the threaded sleeve 20. DETAILED DESCRIPTION

[0026] (Example)

[0027] See Figure 1 A metacarpal external fixation bracket of the present embodiment includes a first bracket 1 and a first needle clamp seat 2 and a first pressurized needle clamp seat 3 which are movably arranged on the first bracket 1 along the length direction of the first bracket 1; the first bracket 1 is movably connected to the second needle clamp seat 4 at one end away from the first pressurized needle clamp seat 3; the other end of the first bracket 1 and both sides of the first bracket 1 are provided with a connecting slot 5.

[0028] Furthermore, a first through groove is provided in the middle of the first bracket 1; a first screw rod with an outer end extending out of the first bracket 1 is rotatably connected in the first through groove, and an inner hexagonal groove is provided at the outer end of the first screw rod; the first clamping needle seat 2 and the first pressurized clamping needle seat 3 can both be slidably connected in the first through groove in a locking manner; the first screw rod passes through the first pressurized clamping needle seat 3 and the first clamping needle seat 2 in sequence, and the first screw rod is threadedly connected to the first pressurized clamping needle seat 3.

[0029] Furthermore, a connecting portion 6 is provided at the end of the first bracket 1; the second needle holder 4 is rotatably connected to the connecting portion 6 by a bolt 7, and the rotation angle of the second needle holder 4 can be adjusted by tightening the bolt 7, thereby facilitating the improvement of the fixation effect in the treatment of the metacarpal bones and improving the comfort of the patient.

[0030] See Figure 2 and Figure 3 A radial external fixation bracket comprises a second bracket 8 and a third bracket 9; the second bracket 8 and the third bracket 9 are connected via a universal adjustment mechanism 10; a third clamping needle seat 11 and a second pressurized clamping needle seat 12 are movably provided on the second bracket 8; the third bracket 9 is provided with two fourth clamping needle seats 13 which can move along the length direction of the third bracket 9; the end of the third bracket 9 away from the connection with the second bracket 8 is provided with a universal connection plug 14 which can cooperate with the connection slot 5.

[0031] Furthermore, a second through groove is provided in the middle of the second bracket 8; a second screw rod with an outer end extending out of the second bracket 8 is rotatably connected in the second through groove, and an inner hexagonal groove is provided at the outer end of the second screw rod; the third clamping needle seat 11 and the second pressurized clamping needle seat 12 can both be locked and slidably connected in the second through groove; the first screw rod sequentially passes through the second pressurized clamping needle seat 12 and the third clamping needle seat 11, and the second pressurized clamping needle seat 12 is threadedly connected to the second screw rod.

[0032] Furthermore, a third through slot is provided in the middle of the third bracket 9 ; the two fourth needle clamping seats 13 can be slidably connected in the third through slot in a locking manner, so as to facilitate the flexible adjustment of the two fourth needle clamping seats 13 .

[0033] Furthermore, the universal adjustment mechanism 10 includes a first connecting ball head 10-1 and a second connecting ball head 10-2; the first connecting ball head 10-1 is provided with a first connecting column 10-3 fixed to the second connecting ball head 10-2; the first connecting ball head 10-1 and the second connecting ball head 10-2 are respectively connected to the ends of the second bracket 8 and the third bracket 9 through threaded sleeves 20; the ends of the second bracket 8 and the third bracket 9 are respectively provided with a first connecting ball head 10-1 end and a second connecting ball head 10-2 end. 2 ends extend into the positioning holes, and the two positioning holes are respectively provided with a first concave ball pad 10-4 and a second concave ball pad 10-5 matching with the ends of the first connecting ball head 10-1 and the ends of the second connecting ball head 10-2; the end of the second bracket 8 is provided with a first locking column 10-6 that drives the first concave ball pad 10-4 to lock the first connecting ball head 10-1 by rotation; the end of the third bracket 9 is provided with a second locking column 10-7 that drives the second concave ball pad 10-5 to lock the second connecting ball head 10-2 by rotation. In this embodiment, the second bracket 8 is connected to the third bracket 9 through the universal adjustment mechanism 10, so that the angle adjustment between the second bracket 8 and the third bracket 9 is more flexible and convenient.

[0034] Furthermore, the universal connecting plug 14 includes a third connecting ball head 14-1; the third connecting ball head 14-1 is connected to an insert block 14-3 that cooperates with the connecting slot 5 through a second connecting column 14-2; the third connecting ball head 14-1 is connected to the end of the third bracket 9 away from the connection with the second bracket 8 through a threaded sleeve 20; and the end of the third bracket 9 away from the connection with the second bracket 8 is provided with a positioning hole for the end of the third connecting ball head 14-1 to extend into; a third concave ball pad that matches the end of the third connecting ball head 14-1 is provided in the positioning hole; the end of the third bracket 9 away from the connection with the second bracket 8 is also provided with a third locking column 14-4 that drives the third concave ball pad to lock the third connecting ball head 14-1 by rotation.

[0035] Furthermore, the third needle holder 11, the second pressurized needle holder 12 and the two fourth needle holders 13 can all be adjusted 360° in the circumferential direction. Preferably, the third needle holder 11, the second pressurized needle holder 12 and the fourth needle holder 13 have the same structure, and the third needle holder 11, the second pressurized needle holder 12 and the fourth needle holder 13 all include a mounting seat 15; a fixing block 16 is sleeved on the mounting seat 15; a lower clamping block 17 is provided on the fixing block 16, and the lower clamping block 17 and the fixing block 16 are in contact through the tooth surface; an upper clamping block 19 is installed above the lower clamping block 17 through a locking screw 18; the locking screw 18 passes through the upper clamping block 19, the lower clamping block 17 and the mounting seat 15 in sequence, and the position adjustment and rotation angle adjustment of the third needle holder 11, the second pressurized needle holder 12 and the fourth needle holder 13 can be achieved by loosening and tightening the screw.

[0036] A metacarpal and radius external fixator comprises a metacarpal external fixator and a plurality of radius external fixators; the plurality of radius external fixators are connected to a connection slot 5 on the metacarpal external fixator via a universal connection plug 14 on the radius external fixator.

[0037] Specifically, see Figure 4 and Figure 5 There is one radius external fixator, which is connected to the end of the metacarpal bone external fixator.

[0038] See Figure 6 Furthermore, the number of the radius external fixator can be three, and the three radius external fixators are respectively connected to the end of the metacarpal bone external fixator and the two sides of the end of the metacarpal bone external fixator.

[0039] Furthermore, scale lines are set on both sides of the metacarpal external fixator and the radius external fixator, which is convenient for distinguishing the range of observation and adjustment during the operation. The doctor can avoid unnecessary trouble during the operation. This reflects the humanity, diversity and operability of the product, and also reflects the new design concept.

[0040] The present embodiment provides a metacarpal external fixer and a radius external fixer, and the metacarpal external fixer and the radius external fixer are connected through a connecting slot and a universal connecting plug to form a metacarpal and radius external fixer, which can treat metacarpal fractures, radius fractures, and simultaneous fractures of the metacarpal and radius in a targeted manner, while ensuring a stable fixation effect, improving the patient's comfort and promoting rapid recovery of the fracture site. In addition, the present embodiment connects the radius external fixer to the metacarpal external fixer through a universal connecting plug, and connects the second bracket and the third bracket through a universal adjusting mechanism. This connection method can ensure that the metacarpal and radius external fixers have the advantages of flexible structure and convenient adjustment during treatment, saving operation time and reducing the pain of the patient.

[0041] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A metacarpal and radius external fixator, characterized in that: The invention comprises a metacarpal external fixation bracket and a plurality of radial external fixation brackets; the plurality of radial external fixation brackets are connected to a connection slot (5) on the metacarpal external fixation bracket via a universal connection plug (14) on the radial external fixation bracket; the metacarpal external fixation bracket comprises a first bracket (1) and a first clamping needle seat (2) and a first pressurizing clamping needle seat (3) movably arranged on the first bracket (1) along the length direction of the first bracket (1); the second clamping needle seat (4) is movably connected to one end of the first bracket (1) away from the first pressurizing clamping needle seat (3); the first bracket (1) The other end and both sides of the first bracket (1) are provided with a connecting slot (5); the middle part of the first bracket (1) is provided with a first through slot; a first screw rod with an outer end extending outside the first bracket (1) is rotatably connected in the first through slot, and the outer end of the first screw rod is provided with an inner hexagonal groove; the first clamping needle seat (2) and the first pressurized clamping needle seat (3) can both be locked and slidably connected in the first through slot; the first screw rod passes through the first pressurized clamping needle seat (3) and the first clamping needle seat (2) in sequence, and the first screw rod is threadedly connected to the first pressurized clamping needle seat (3); the end of the first bracket (1) A connecting portion (6) is provided; the second clamping needle seat (4) is rotatably connected to the connecting portion (6) by means of a bolt (7); the radial external fixation bracket comprises a second bracket (8) and a third bracket (9); the second bracket (8) and the third bracket (9) are connected by means of a universal adjustment mechanism (10); a third clamping needle seat (11) and a second pressurized clamping needle seat (12) are movably provided on the second bracket (8); the third bracket (9) is provided with two fourth clamping needle seats (13) which can move along the length direction of the third bracket (9); the third bracket (9) is away from the second bracket (8) One end of the connection is provided with a universal connecting plug (14) which can cooperate with the connecting slot (5); a second through slot is provided in the middle of the second bracket (8); a second screw rod with an outer end extending outside the second bracket (8) is rotatably connected in the second through slot, and the outer end of the second screw rod is provided with a hexagonal groove; the third clamping needle seat (11) and the second pressurized clamping needle seat (12) can both be locked and slidably connected in the second through slot; the first screw rod passes through the second pressurized clamping needle seat (12) and the third clamping needle seat (11) in sequence, and the second pressurized clamping needle seat (12) is threadedly connected to the second screw rod.

2. The metacarpal and radius external fixator according to claim 1, characterized in that: A third through slot is provided in the middle of the third bracket (9); the two fourth needle clamping seats (13) can be slidably connected in the third through slot in a locking manner.

3. The metacarpal and radius external fixator according to claim 1, characterized in that: The universal adjustment mechanism (10) comprises a first connecting ball head (10-1) and a second connecting ball head (10-2); the first connecting ball head (10-1) is provided with a first connecting column (10-3) fixed to the second connecting ball head (10-2); the first connecting ball head (10-1) and the second connecting ball head (10-2) are respectively connected to the ends of the second bracket (8) and the third bracket (9) through threaded sleeves (20); the ends of the second bracket (8) and the third bracket (9) are respectively provided with a first connecting ball head (10-1) and a second connecting ball head (10-2) for connecting the first connecting ball head (10-1) and the second connecting ball head (10-2) ) ends thereof extend into a positioning hole, and a first concave ball pad (10-4) and a second concave ball pad (10-5) are respectively provided in the two positioning holes to match the ends of the first connecting ball head (10-1) and the second connecting ball head (10-2); a first locking column (10-6) is provided at the end of the second bracket (8) to drive the first concave ball pad (10-4) to lock the first connecting ball head (10-1) by rotation; and a second locking column (10-7) is provided at the end of the third bracket (9) to drive the second concave ball pad (10-5) to lock the second connecting ball head (10-2) by rotation.

4. The metacarpal and radius external fixator according to claim 1, characterized in that: The universal connection plug (14) comprises a third connection ball head (14-1); the third connection ball head (14-1) is connected to an insert block (14-3) matched with a connection slot (5) via a second connection column (14-2); the third connection ball head (14-1) is connected to an end of a third bracket (9) away from its connection with the second bracket (8) via a threaded sleeve (20); and a positioning hole for the end of the third connection ball head (14-1) to extend into is provided at the end of the third bracket (9) away from its connection with the second bracket (8); a third concave ball pad matching with the end of the third connection ball head (14-1) is provided in the positioning hole; and a third locking column (14-4) is provided at the end of the third bracket (9) away from its connection with the second bracket (8) to drive the third concave ball pad to lock the third connection ball head (14-1) by rotation.

5. The metacarpal and radius external fixator according to claim 1, characterized in that: The third needle clamping seat (11), the second pressurized needle clamping seat (12) and the two fourth needle clamping seats (13) can all be adjusted 360 degrees in the circumferential direction.

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