Adjustable ulna olecranon tension band kirschner wire implantation guider

Abstract

The invention discloses an adjustable ulna olecranon tension band kirschner wire implantation guider, and relates to the field of medical instruments. The adjustable ulna olecranon tension band kirschner wire implantation guiding device comprises a handheld part and a guiding mechanism, the guiding mechanism comprises a rotating seat, two tubular guiding parts, a self-locking adjusting part and a linear groove, and the rotating seat is rotationally arranged in the handheld part. According to the adjustable ulna olecranon tension band kirschner wire imbedding guider, guiding pipes move along linear grooves, the positions of the two sets of guiding pipes and the distance between the two sets of guiding pipes are adjusted, then a nut is tightened for fixing, a rotary knob is rotated, a worm drives a worm gear to rotate, a rotating base drives the two sets of guiding pipes to conduct inclination angle adjustment, and the guiding pipes are fixed. The arc-shaped attaching groove in the carrier is attached to the outer wall of the olecranon of the ulna of a patient, a kirschner wire is guided to be placed through the guiding pipe, the guiding process is more stable, and meanwhile the inclination angle can be adjusted according to the actual fracture section depth.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to an adjustable ulna olecranon tension band Kirschner wire insertion guide. Background Art

[0002] The ulna olecranon tension band Kirschner wire is an auxiliary instrument for fixing the fracture site after the fracture of the olecranon part at the end of the ulna. The Kirschner wire penetrates through the ulna olecranon and anchors it to the end of the ulna, so as to assist in positioning during the growth of the broken bone. It is an internal auxiliary instrument. When the Kirschner wire is inserted, a guide is required.

[0003] The traditional guide has a simple structure and usually includes a handheld part and a guiding part. The guiding part can be adjusted in distance inside the handheld part and then fixed with a nut. However, in actual application, it is found that on the one hand, due to the different depths of the fracture sections of the olecranon, the angles of the Kirschner wire during insertion are different, usually between 0 and 25 degrees. For the traditional guide, the guiding part and the handheld part are perpendicular to each other, and the surface of the handheld part is horizontal, while the ulna section is usually arc-shaped. This makes it impossible to ensure the angle during insertion and is not convenient for stability. Therefore, an adjustable ulna olecranon tension band Kirschner wire insertion guide is provided to solve the above problems. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides an adjustable ulna olecranon tension band Kirschner wire insertion guide, which solves the problems that in the traditional ulna olecranon tension band Kirschner wire insertion guide, the guiding part and the handheld part are perpendicular to each other, the surface of the handheld part is horizontal, while the ulna section is usually arc-shaped, making it impossible to ensure the angle during insertion and not convenient for stability.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: An adjustable ulna olecranon tension band Kirschner wire insertion guide includes a handheld part and a guiding mechanism, and the guiding mechanism includes:

[0006] A rotating seat, which is rotatably arranged in the handheld part;

[0007] A linear groove, which is opened in the middle of the rotating seat;

[0008] Two groups of tubular guiding parts, which can be selectively fixed at any position in the linear groove;

[0009] A self-locking adjusting part, which is installed between the rotating seat and the handheld part for stopping the rotation of the rotating seat.

[0010] Preferably, the handheld part includes;

[0011] A carrier;

[0012] A long handle integrally formed at one end of the carrier;

[0013] An arc-shaped fitting groove formed at the bottom of the carrier.

[0014] Preferably, a vertically penetrating movable chamber is formed in the middle of the carrier, the rotating seat is rotatably connected in the movable chamber, and the self-locking adjusting member is arranged at one end of the movable chamber.

[0015] Preferably, the self-locking adjusting member includes;

[0016] A knob rotatably connected to the side wall of the carrier;

[0017] A worm fixed at the bottom end of the knob;

[0018] A worm gear fixed at one end of the rotating seat, and the worm gear meshes with the worm.

[0019] Preferably, the tubular guiding member includes;

[0020] A guiding tube slidably arranged in the linear groove;

[0021] A penetrating tube integrally formed at the top end of the guiding tube;

[0022] A clamping and fixing portion arranged at the top end of the guiding tube, and the clamping and fixing portion clamps and fixes the upper and lower sides of the linear groove.

[0023] Preferably, the clamping and fixing portion includes;

[0024] A fixing ring fixedly sleeved outside the guiding tube and abutted against the bottom of the linear groove;

[0025] A movable ring movably sleeved outside the guiding tube and abutted against the top of the linear groove;

[0026] A threaded tube integrally formed between the guiding tube and the penetrating tube, and the outer diameter of the threaded tube is larger than the outer diameter of the penetrating tube;

[0027] A nut threadedly connected to the outer surface of the threaded tube for pushing the movable ring to move downward along the guiding tube to form a clamp with the fixing ring.

[0028] The present invention discloses an adjustable Kirschner wire insertion guide for the olecranon ulna, and its beneficial effects are as follows: By loosening the nuts at the tops of the two guide tubes, and then moving the guide tubes along the linear grooves, the positions of the two guide tubes and the distance between them are adjusted. Then, the nuts are tightened for fixation. By rotating the knob, the worm drives the worm gear to rotate, causing the rotating seat to drive the two guide tubes to adjust the inclination angle. At this time, the arc-shaped fitting groove on the carrier is used to fit the outer wall of the patient's olecranon ulna, and the Kirschner wire is inserted through the guide tube, making the guiding process more stable. At the same time, the inclination angle can be adjusted according to the actual depth of the fracture section. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0030] Figure 1 Schematic diagram of the overall outer surface structure of the present invention;

[0031] Figure 2 Schematic diagram of the overall bottom structure of the present invention;

[0032] Figure 3 Schematic diagram of the outer surface structure of the carrier of the present invention;

[0033] Figure 4 Exploded view of the internal structure of the rotating seat of the present invention.

[0034] In the figure: 1. Handheld part; 11. Carrier; 12. Long handle; 13. Arc-shaped fitting groove; 14. Activity chamber; 2. Guiding mechanism; 21. Rotating seat; 22. Tubular guiding member; 221. Guide tube; 222. Fixed ring; 223. Threaded tube; 224. Movable ring; 225. Nut; 226. Penetrating tube; 23. Self-locking adjustment member; 231. Knob; 232. Worm; 233. Worm gear; 24. Linear groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0036] In an embodiment of the present application, by providing an adjustable ulnar olecranon tension band Kirschner wire insertion guide, the problem of the traditional ulnar olecranon tension band Kirschner wire insertion guide is solved. Its guiding member and the handheld member are perpendicular to each other, and the surface of the handheld member is a horizontal plane, while the cross-section of the ulna is usually arc-shaped, which makes it impossible to ensure the angle during insertion and is not convenient for stability.

[0037] To better understand the above technical solution, the following will describe the above technical solution in detail in conjunction with the specification drawings and specific implementation manners.

[0038] An embodiment of the present invention discloses an adjustable ulnar olecranon tension band Kirschner wire insertion guide.

[0039] Embodiment 1

[0040] According to the attached Figures 1-4 As shown, it includes a handheld member 1 and a guiding mechanism 2. The guiding mechanism 2 includes a rotating seat 21, two groups of tubular guiding members 22, a self-locking adjusting member 23, and a linear groove 24. The rotating seat 21 is rotatably arranged in the handheld member 1; the linear groove 24 is opened in the middle of the rotating seat 21; the two groups of tubular guiding members 22 can be selectively fixed at any position in the linear groove 24; the self-locking adjusting member 23 is installed between the rotating seat 21 and the handheld member 1 for stopping the rotation of the rotating seat 21.

[0041] The handheld member 1 includes a carrier 11, a long handle 12, an arc-shaped fitting groove 13, and a movable chamber 14. The long handle 12 is integrally formed at one end of the carrier 11. The arc-shaped fitting groove 13 is opened at the bottom of the carrier 11. A vertically penetrating movable chamber 14 is opened in the middle of the carrier 11. The rotating seat 21 is rotatably connected in the movable chamber 14, and the self-locking adjusting member 23 is arranged at one end of the movable chamber 14.

[0042] The self-locking adjusting member 23 includes a knob 231, a worm 232, and a worm gear 233. The knob 231 is rotatably connected to the side wall of the carrier 11; the worm 232 is fixedly arranged at the bottom end of the knob 231; the worm gear 233 is fixedly arranged at one end of the rotating seat 21, and the worm gear 233 meshes with the worm 232. By rotating the knob 231, the worm 232 drives the worm gear 233 to rotate, so that the rotating seat 21 rotates in the carrier 11 for inclination adjustment. At the same time, by using the self-locking property of the worm gear 233 and the worm 232, the adjusted rotating seat 21 cannot rotate independently.

[0043] The tubular guiding member 22 includes a guiding tube 221, a penetrating tube 226, and a clamping and fixing part. The guiding tube 221 is slidably arranged in the linear groove 24; the penetrating tube 226 is integrally formed at the top end of the guiding tube 221. The clamping and fixing part is arranged at the top end of the guiding tube 221, and the clamping and fixing part clamps and fixes the upper and lower sides of the linear groove 24.

[0044] The clamping and fixing part includes a fixing ring 222, a threaded tube 223, a movable ring 224 and a nut 225. The fixing ring 222 is fixedly sleeved outside the guiding tube 221 and abuts against the bottom of the linear groove 24; the movable ring 224 is movably sleeved outside the guiding tube 221 and abuts against the top of the linear groove 24; the threaded tube 223 is integrally formed between the guiding tube 221 and the penetrating tube 226, and the outer diameter of the threaded tube 223 is larger than the outer diameter of the penetrating tube 226; the nut 225 is threadedly connected to the outer surface of the threaded tube 223 and is used to push the movable ring 224 to move downward along the guiding tube 221 to form a clamp with the fixing ring 222. The inner diameters of the guiding tube 221, the threaded tube 223 and the penetrating tube 226 are the same.

[0045] Working principle: When the device is in use, first loosen the nuts 225 at the tops of the two guiding tubes 221, then move the guiding tubes 221 along the linear groove 24 to adjust the positions and the distance between the two guiding tubes 221, and then tighten the nuts 225 for fixation. Then, by rotating the knob 231, the worm 232 drives the worm wheel 233 to rotate, so that the rotating seat 21 drives the two guiding tubes 221 to adjust the inclination angle. At this time, the arc-shaped fitting groove 13 on the carrier 11 is fitted with the outer wall of the olecranon of the patient. At this time, the bottom end of the guiding tube 221 does not contact the olecranon. The guiding Kirschner wire is inserted through the penetrating tube 226 at the top end of the guiding tube 221, making the guiding process more stable, and the inclination angle can be adjusted according to the actual depth of the fracture section.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable olecranon tension band Kirschner wire insertion guide, comprising a handheld part (1) and a guiding mechanism (2), characterized in that, The guiding mechanism (2) includes: A rotating base (21) rotatably arranged in the handheld part (1); A linear groove (24) opened in the middle of the rotating base (21); Two groups of tubular guiding members (22) selectively fixed at any position in the linear groove (24); A self-locking adjusting member (23) installed between the rotating base (21) and the handheld part (1) for stopping the rotation of the rotating base (21).

2. The adjustable olecranon tension band Kirschner wire insertion guide according to claim 1, characterized in that: The handheld part (1) includes; A carrier (11); A long handle (12) integrally formed at one end of the carrier (11); An arc-shaped fitting groove (13) opened at the bottom of the carrier (11).

3. An adjustable ulna olecranon tension band Kirschner wire insertion guide according to claim 2, characterized in that: A vertically penetrating movable chamber (14) is opened in the middle of the carrier (11), the rotating base (21) is rotatably connected in the movable chamber (14), and the self-locking adjusting member (23) is arranged at one end of the movable chamber (14).

4. An adjustable ulnar olecranon tension band Kirschner wire insertion guide according to claim 3, characterized in that: The self-locking adjusting member (23) includes; A knob (231) rotatably connected to the side wall of the carrier (11); A worm (232) fixedly arranged at the bottom end of the knob (231); A worm gear (233) fixedly arranged at one end of the rotating base (21), and the worm gear (233) meshes with the worm (232).

5. An adjustable ulnar olecranon tension band Kirschner wire insertion guide according to claim 1, characterized in that: The tubular guiding member (22) includes; A guiding tube (221) slidably arranged in the linear groove (24); A penetrating tube (226) integrally formed at the top end of the guiding tube (221); A clamping and fixing part arranged at the top end of the guiding tube (221), and the clamping and fixing part clamps and fixes the upper and lower sides of the linear groove (24).

6. The adjustable olecranon tension band Kirschner wire insertion guide according to claim 5, characterized in that: The clamping and fixing part includes; A fixing ring (222) fixedly sleeved outside the guiding tube (221) and abutted against the bottom of the linear groove (24); A movable ring (224) movably sleeved outside the guiding tube (221) and abutted against the top of the linear groove (24); A threaded tube (223) integrally formed between the guiding tube (221) and the penetrating tube (226), and the outer diameter of the threaded tube (223) is larger than the outer diameter of the penetrating tube (226); A nut (225) threadedly connected to the outer surface of the threaded tube (223) for pushing the movable ring (224) to move downward along the guiding tube (221) to form a clamp with the fixing ring (222).

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