External fixation support with tip protection structure

Abstract

The utility model relates to the field of medical apparatus and instruments, and discloses an external fixation support with a tip protection structure, the external fixation support comprises two fixation rings, a plurality of adjusting boxes and eight rubber protection sleeves, the front end, the rear end and the two sides of the inner wall of each fixation ring are all provided with clamping mechanisms in a threaded mode, and each clamping mechanism comprises a threaded rod and an arc-shaped plate. Rotating rings are rotationally arranged on the opposite sides of the two fixing rings, four bone needle sleeves are fixedly arranged at the centers of the outer walls of the two fixing rings, and the eight rubber protection sleeves are movably connected to the outer walls of the eight bone needle sleeves in a sleeving mode. According to the utility model, the support is fixed on affected limbs of patients with different figures through the clamping mechanism, the affected limbs can also be fixed to prevent the affected limbs from frequently moving to delay the rehabilitation progress, and the rotation angle of the fixing frame is adjusted through the adjusting mechanism, so that the spicule sleeve can directly face the affected part; and the force wasted by rotating the whole bracket is reduced.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to an external fixing bracket with a tip protection structure. Background Art

[0002] A fixation brace is a brace used in orthopedics to treat fractures and osteotomy healing. Usually, a single-arm external fixation brace is used clinically. This type of brace is mainly suitable for fractures of long tubular bones, such as femoral fractures, and is particularly used for tibia fractures, as well as fractures of the humerus or forearm bones.

[0003] In the existing external fixator, when it is necessary to treat patients of different sizes, it is usually necessary to replace external fixators of different specifications, and when installing the external fixator to the patient's affected part, it is usually necessary to rotate the external fixator as a whole so that the bone needle can accurately pierce the position of the patient's affected part along the bone needle sleeve to be fixed, and it is necessary to hold the external fixator by hand during rotation, which is quite laborious. Therefore, the utility model provides an external fixator with a tip protection structure to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art and to propose an external fixation bracket with a tip protection structure. The device clamps the patient's leg through a clamping mechanism, which is convenient for clamping and fixing the affected part of patients with different body shapes, and controls the rotation angle of the fixing ring through an adjustment mechanism, so that the bone needle can be embedded along the bone needle sleeve into the position where the affected part needs to be fixed, and at the same time, the tip of the bone needle on the outside can be protected by a rubber protective sleeve and a rubber head.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: comprising two fixing rings, a plurality of adjustment boxes and eight rubber protective sleeves, the inner walls of the two fixing rings are provided with clamping mechanisms threadedly at both ends and both sides, the eight clamping mechanisms each comprise a threaded rod and an arc-shaped plate, the two fixing rings are provided with a rotating ring rotatably on one side opposite to the other, and four bone needle sleeves are fixedly provided at the center of the outer walls of the two fixing rings;

[0006] The eight rubber protective sleeves are respectively movably sleeved on the outer walls of the eight bone needle sleeves, and the eight rubber protective sleeves are all movably sleeved with rubber heads, and the inner walls of the plurality of adjustment boxes are all fixedly provided with adjustment mechanisms at the upper end and the lower end, and the plurality of adjustment mechanisms include a screw, a positioning ring, a threaded sleeve and a second bevel gear;

[0007] Through the above technical scheme, the design of the fixing ring facilitates the fixation of the position of the clamping mechanism and the bone needle sleeve, the design of the clamping mechanism facilitates the clamping and fixation of the affected part of patients with different body shapes, the design of the bone needle sleeve facilitates the insertion of the bone needle and the fixation of the rubber protective sleeve, the tip of the bone needle can be protected by the rubber protective sleeve and the rubber head to prevent the bone needle from scratching the patient, the design of the adjustment box facilitates the fixation of the adjustment mechanism, and the adjustment mechanism can fix the rotation angle of the fixing ring, so that the bone needle can be accurately inserted into the position where the patient needs to be fixed through the bone needle sleeve.

[0008] Furthermore, four of the eight threaded rods located on the same fixing ring are respectively threadedly penetrated at the front and rear ends and both sides of the center of the inner wall of the fixing ring, a telescopic rod is fixedly arranged at one end of the eight threaded rods close to the center of the fixing ring, a No. 2 spring is fixedly sleeved on the outer walls of the eight telescopic rods, a fixing block is fixedly arranged at one end of the eight telescopic rods, one end of the eight No. 2 springs is respectively fixedly arranged on the eight threaded rods, and the other ends of the eight No. 2 springs are respectively fixedly arranged on the eight fixing blocks, a bearing is embedded at the center of one side of the eight arc-shaped plates away from the center of the fixing ring, and the eight fixing blocks are fixedly arranged on the inner walls of the eight bearings;

[0009] Through the above technical solution, the design of the threaded rod can adjust the distance between the clamping mechanism and the center of the fixing ring, so as to achieve clamping and fixation of the affected part of patients with different body shapes. The design of the combination of the spring and the telescopic rod can give the patient's fixed part a certain amount of room for movement, preventing the clamping mechanism from clamping and compressing the affected part for a long time, causing blood circulation in the affected part and affecting the recovery progress. The fixing block can be embedded in the bearing so that when the threaded rod rotates to push the arc plate to clamp the affected part, the angle of the arc plate can always remain straight.

[0010] Further, two positioning rings in the same adjustment box among the plurality of positioning rings are respectively fixedly arranged at the center of the inner wall of the adjustment box near the upper and lower ends, the plurality of threaded sleeves are respectively rotatably sleeved and arranged on the inner walls of the plurality of positioning rings, two threaded sleeves in the same adjustment box among the plurality of threaded sleeves are respectively fixedly arranged with a second bevel gear on the opposite side, the plurality of screws are respectively threadedly arranged in the plurality of threaded sleeves, and the two screws in the same adjustment box among the plurality of screws are respectively threadedly penetrated through the center of the upper and lower end surfaces of the inner wall of the adjustment box;

[0011] Through the above technical solution, the positioning ring can fix the vertical position of the threaded sleeve. The threaded sleeve can be rotated through the second bevel gear. The vertical position of the screw can be adjusted in the vertical direction through the rotation of the threaded sleeve.

[0012] Further, a rotating shaft is rotatably provided at the center of one side of the plurality of adjusting boxes, and the plurality of rotating shafts respectively penetrate the center of one side of the plurality of adjusting boxes, a No. 2 knob is fixedly provided at one side of the plurality of rotating shafts, and a No. 1 bevel gear is fixedly provided at the other side of the plurality of rotating shafts, and the plurality of No. 1 bevel gears are respectively meshed and connected with two No. 2 bevel gears located in the same adjusting box among the plurality of No. 2 bevel gears;

[0013] Through the above technical solution, the No. 2 knob facilitates the rotation of the rotating shaft. By rotating the rotating shaft, the rotating shaft drives the two No. 2 bevel gears meshing with it to rotate through the No. 1 bevel gear.

[0014] Furthermore, a plurality of embedding holes are provided on opposite sides of the two fixed rings, and the plurality of screw rods are respectively slidably engaged in the two rotating rings and embedded in the plurality of embedding holes;

[0015] Through the above technical solution, the design of the screw slidingly clamped in the rotating ring can connect and fix the two rotating rings through the screw, and the screw can be embedded in the embedding hole through the adjustment mechanism to fix the rotation angle of the fixed ring.

[0016] Furthermore, tightening grooves are provided at the lower ends of the outer walls of the eight rubber protective sleeves, fixing plates are fixedly provided at the centers of the inner walls of the eight rubber protective sleeves, No. 1 springs are fixedly provided at both sides of the centers of the upper ends of the eight fixing plates, one ends of the plurality of No. 1 springs are respectively fixedly provided at the lower ends of the eight rubber heads, and ejector grooves are provided at the centers of the lower ends of the eight fixing plates and the eight rubber heads;

[0017] Through the above technical scheme, a draw rope can be used to further fix the rubber protective cover and the bone needle cover through the tightening groove to improve the fixing strength of the rubber protective cover and prevent the rubber protective cover from slipping during use. The design of the ejector groove is convenient for fixing the position of the bone needle. The design of the No. 1 spring is convenient for wrapping the bone needle with the rubber head through elastic force, and the rubber head can wrap bone needles of different lengths through the expansion and contraction of the No. 1 spring.

[0018] Furthermore, a number 1 knob is fixedly provided on one end of each of the eight threaded rods away from the center of the fixing ring;

[0019] Through the above technical solution, the design of knob No. 1 facilitates controlling the rotation angle of the threaded rod, and by adjusting the rotation angle of the threaded rod, the arc plate can fit the patient's limb to fix the patient's limb.

[0020] The utility model has the following beneficial effects:

[0021] 1. The utility model proposes an external fixation bracket with a tip protection structure. The threaded rod is rotated by button No. 1. The threaded rod drives the arc plate to move toward the center of the fixing ring under the action of the thread. During the movement, the force in the rotation direction of the threaded rod is offset by the design of the bearing, so that the arc plate can move straight. When clamped for a long time, the patient can slightly move his limbs. At this time, the telescopic rod is contracted, and the No. 2 spring is used to apply an expanding force to the telescopic rod to avoid affecting the fixing effect of the device.

[0022] 2. The utility model proposes an external fixation bracket with a tip protection structure. By rotating the No. 2 knob to one side, the No. 2 knob drives the No. 1 bevel gear to rotate through the rotating shaft, and the No. 1 bevel gear drives the two No. 2 bevel gears meshing with it to rotate. The rotation of the No. 2 bevel gear and the threaded sleeve allows the screw to move in the vertical direction through the threads in the threaded sleeve and the upper and lower end surfaces of the adjustment box, which facilitates the screw to be embedded in or out of the embedding hole, thereby playing a role in adjusting and fixing the rotation angle of the fixing ring, so that the bone needle can be accurately inserted into the position where the patient's affected part needs to be fixed along the bone needle sleeve, while avoiding the need to rotate the entire bracket as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an axonometric schematic diagram of the utility model;

[0024] Figure 2 It is a half-section schematic diagram of the regulating box of the utility model;

[0025] Figure 3 It is a half-section schematic diagram of the fixing ring of the utility model;

[0026] Figure 4 For the utility model Figure 3 The enlarged schematic diagram at A in the middle;

[0027] Figure 5 It is a top view schematic diagram of the fixing ring of the utility model;

[0028] Figure 6 It is a schematic diagram of the combination of the rotating ring and the adjusting box of the utility model;

[0029] Figure 7 The utility model is a schematic diagram of the rubber protective sleeve and the rubber head combination.

[0030] Legend:

[0031] 1. Fixed ring; 2. Adjustment box; 3. Clamping mechanism; 4. Bone needle sleeve; 5. Knob No. 1; 6. Rotating ring; 7. Adjustment mechanism; 8. Bevel gear No. 1; 9. Rotating shaft; 10. Knob No. 2; 11. Embedded hole; 12. Rubber protective cover; 13. Tightening groove; 14. Fixed plate; 15. Spring No. 1; 16. Rubber head; 17. Ejector groove; 301. Threaded rod; 302. Spring No. 2; 303. Telescopic rod; 304. Fixed block; 305. Bearing; 306. Arc plate; 701. Screw; 702. Positioning ring; 703. Threaded sleeve; 704. Bevel gear No. 2. DETAILED DESCRIPTION

[0032] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Example

[0034] Reference Figure 1-7 The utility model provides an embodiment: comprising two fixing rings 1, a plurality of adjustment boxes 2 and eight rubber protective sleeves 12. The design of the fixing rings 1 is convenient for fixing the positions of the clamping mechanism 3 and the bone needle sleeve 4. The front and rear ends and both sides of the inner walls of the two fixing rings 1 are threadedly provided with the clamping mechanism 3. The design of the clamping mechanism 3 is convenient for clamping and fixing the affected parts of patients with different body shapes. The eight clamping mechanisms 3 all include a threaded rod 301 and an arc plate 306. The two fixing rings 1 are rotatably provided with a rotating ring 6 on one side opposite to the other. Four bone needle sleeves 4 are fixedly provided at the center of the outer walls of the two fixing rings 1. The design of the bone needle sleeve 4 is convenient for the bone needle to penetrate and for fixing the rubber protective sleeve 12.

[0035] Eight rubber protective sleeves 12 are movably sleeved on the outer walls of eight bone needle sleeves 4 respectively, and rubber heads 16 are movably sleeved in the eight rubber protective sleeves 12. The tips of the bone needles can be protected by the rubber protective sleeves 12 and the rubber heads 16 to prevent the bone needles from scratching the patients. Adjustment mechanisms 7 are fixedly arranged at the upper and lower ends of the inner walls of the multiple adjustment boxes 2. The adjustment mechanisms 7 can fix the rotation angle of the fixing ring 1, so that the bone needles can be accurately inserted into the positions where the patients need to be fixed through the bone needle sleeves 4. The multiple adjustment mechanisms 7 include a screw 701, a positioning ring 702, a threaded sleeve 703 and a No. 2 bevel gear 704.

[0036] When in use, the patient's affected limb is first passed through the two fixing rings 1, and then the two fixing rings 1 are adjusted to a suitable position, and the No. 1 knob 5 is rotated to one side, so that the No. 1 knob 5 drives the threaded rod 301 to rotate, and the threaded rod 301 drives the arc plate 306 to move toward the center of the fixing ring 1 under the action of the thread. During the movement, the fixing block 304 is embedded in the bearing 305, and the rotation of the bearing 305 offsets the force in the rotation direction of the threaded rod 301, so that the arc plate 306 can move straight. When clamped for a long time, the threaded rod 301 can be slightly moved outward so that the patient can slightly move the limb. At this time, the telescopic rod 303 is contracted, and the No. 2 spring 302 applies an expanding force to the telescopic rod 303, so that the arc plate 306 can always compress and clamp the patient's affected limb to improve the fixation effect of the patient's limb.

[0037] After the fixation is completed, the No. 2 knob 10 is rotated to one side, so that the No. 2 knob 10 drives the No. 1 bevel gear 8 to rotate through the rotating shaft 9, and drives the two No. 2 bevel gears 704 meshing therewith to rotate through the No. 1 bevel gear 8, and the No. 2 bevel gear 704 and the threaded sleeve 703 rotate, so that the screw rod 701 moves in the vertical direction through the threads in the threaded sleeve 703 and the upper and lower end surfaces of the adjustment box 2, so that the screw rod 701 escapes from the embedding hole 11, and then the angle of the fixing ring 1 is adjusted by rotating the ring 6, so that the bone needle can accurately penetrate the position where the patient's affected part needs to be fixed along the bone needle sleeve 4, and after the adjustment is completed, the No. 2 knob 10 is rotated to the other side, so that the screw rod 701 is embedded in the embedding hole 11 to fix the rotation angle of the fixing ring 1, thereby avoiding the need to rotate the entire bracket as a whole, and the position of the bracket can be fixed by the clamping mechanism 3 before rotation, avoiding the problem of needing to support the bracket by manpower during the installation and fixing of the bracket;

[0038] After fixation, the rubber protective sleeve 12 is sleeved on the outer wall of the bone needle sleeve 4, and then the rubber protective sleeve 12 is tied to the outer wall of the bone needle sleeve 4 along the tightening groove 13 with a tie rope, and the rubber protective sleeve 12 is further fixed to prevent the rubber protective sleeve 12 from rotating and slipping, and then the outer side of the bone needle is wrapped through the ejector groove 17. At the same time, the elastic force of the No. 1 spring 15 at the upper end of the fixing plate 14 allows the rubber head 16 to fit tightly with bone needles of different lengths to prevent the tip of the bone needle from scratching the patient.

[0039] Working principle: The clamping mechanism 3 is convenient for clamping and fixing the limbs of patients of different body shapes, and it is convenient for subsequently inserting the bone needle into the position of the patient's affected limb that needs to be fixed through the bone needle sleeve 4. At the same time, after the fixation is completed, the rotation angle of the fixing ring 1 can be adjusted through the adjustment mechanism 7, so that the bone needle sleeve 4 on the fixing ring 1 can be directly facing the position on the patient's limb that needs to be fixed, avoiding the effort caused by rotating the entire bracket.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An external fixing bracket with a tip protection structure, comprising two fixing rings (1), a plurality of adjustment boxes (2) and eight rubber protective sleeves (12), characterized in that: The inner walls of the two fixing rings (1) are provided with clamping mechanisms (3) in a threaded manner at both ends and both sides thereof, and the eight clamping mechanisms (3) each comprise a threaded rod (301) and an arc-shaped plate (306). The two fixing rings (1) are provided with a rotating ring (6) on one side thereof so as to be rotatable, and four bone needle sleeves (4) are fixedly provided at the center of the outer walls of the two fixing rings (1); The eight rubber protective sleeves (12) are movably sleeved on the outer walls of the eight bone needle sleeves (4), and the eight rubber protective sleeves (12) are movably sleeved with rubber heads (16). The inner walls of the plurality of adjustment boxes (2) are fixedly provided with adjustment mechanisms (7) at the upper and lower ends, and the plurality of adjustment mechanisms (7) include a screw (701), a positioning ring (702), a threaded sleeve (703) and a second bevel gear (704).

2. The external fixation bracket with a tip protection structure according to claim 1, characterized in that: Four of the eight threaded rods (301) located on the same fixing ring (1) are respectively threadedly penetrated at the front and rear ends and both sides of the center of the inner wall of the fixing ring (1); a telescopic rod (303) is fixedly arranged at one end of the eight threaded rods (301) close to the center of the fixing ring (1); a No. 2 spring (302) is fixedly sleeved on the outer wall of the eight telescopic rods (303); a fixing block (304) is fixedly arranged at one end of the eight telescopic rods (303); one end of the eight No. 2 springs (302) is respectively fixedly arranged on the eight threaded rods (301); the other ends of the eight No. 2 springs (302) are respectively fixedly arranged on the eight fixing blocks (304); a bearing (305) is embedded at the center of one side of the eight arc-shaped plates (306) away from the center of the fixing ring (1); and the eight fixing blocks (304) are fixedly arranged on the inner walls of the eight bearings (305).

3. The external fixation bracket with a tip protection structure according to claim 1, characterized in that: Two positioning rings (702) located in the same regulating box (2) among the plurality of positioning rings (702) are respectively fixedly arranged at the center of the inner wall of the regulating box (2) near the upper and lower ends; the plurality of threaded sleeves (703) are respectively rotatably sleeved and arranged on the inner walls of the plurality of positioning rings (702); two threaded sleeves (703) located in the same regulating box (2) among the plurality of threaded sleeves (703) are respectively fixedly arranged with a second bevel gear (704) on opposite sides; the plurality of screw rods (701) are respectively threadedly arranged in the plurality of threaded sleeves (703); and two screw rods (701) located in the same regulating box (2) are respectively threadedly penetrated through the center of the upper and lower end surfaces of the inner wall of the regulating box (2).

4. The external fixation bracket with a tip protection structure according to claim 1, characterized in that: A rotating shaft (9) is rotatably arranged at the center of one side of the plurality of adjustment boxes (2), and the plurality of rotating shafts (9) respectively penetrate the center of one side of the plurality of adjustment boxes (2). A No. 2 knob (10) is fixedly arranged on one side of the plurality of rotating shafts (9), and a No. 1 bevel gear (8) is fixedly arranged on the other side of the plurality of rotating shafts (9). The plurality of No. 1 bevel gears (8) are respectively meshed and connected with two No. 2 bevel gears (704) located in the same adjustment box (2) among the plurality of No. 2 bevel gears (704).

5. The external fixation bracket with a tip protection structure according to claim 1, characterized in that: A plurality of embedding holes (11) are provided on opposite sides of the two fixed rings (1), and the plurality of screw rods (701) are respectively slidably engaged in the two rotating rings (6) and embedded in the plurality of embedding holes (11).

6. The external fixation bracket with a tip protection structure according to claim 1, characterized in that: The outer walls of the eight rubber protective sleeves (12) are each provided with a tightening groove (13) at the lower end thereof, the inner walls of the eight rubber protective sleeves (12) are each fixedly provided with a fixing plate (14) at the center thereof, the upper end surfaces of the eight fixing plates (14) are each fixedly provided with a No. 1 spring (15) at both sides of the center thereof, one end of each of the No. 1 springs (15) is respectively fixedly provided on the lower end surfaces of the eight rubber heads (16), and the lower end surfaces of the eight fixing plates (14) and the eight rubber heads (16) are each provided with an ejector groove (17) at the center thereof.

7. The external fixation bracket with a tip protection structure according to claim 1, characterized in that: A number 1 knob (5) is fixedly provided on one end of the eight threaded rods (301) away from the center of the fixing ring (1).

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