Traction repositor for fracture of metacarpal bone

Abstract

The utility model provides a metacarpal bone fracture traction repositor which comprises a T-shaped frame, a ratchet wheel tightener, a traction fingerstall and a bandage, the T-shaped frame comprises a cross rod and a vertical rod, and the cross rod is arranged at one end of the vertical rod and protrudes out of the horizontal plane of the vertical rod; the ratchet tightener is fixed at the other end of the vertical rod; the traction fingerstall is provided with an open end and a closed end, and the closed end is connected to the rotating shaft of the ratchet tightener through a fixing rope; the vertical rod of the T-shaped frame is fixed to the wrist portion through a bandage. The metacarpal bone fracture traction repositor is simple in structure, convenient to operate and capable of effectively conducting traction and stabilization on the metacarpal bone fracture position, reduces pushing and squeezing of an operator on the fracture end, does not need continuous traction of the operator to maintain reposition, and can save time, labor and manpower.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a metacarpal fracture traction and reduction device. Background Art

[0002] The current mainstream technology for metacarpal fractures is closed Kirschner wire fixation. During the operation, traction and stabilization of the metacarpal fracture site are required. In the existing surgical process, medical staff help to longitudinally push and squeeze the fracture site and continuously apply force to hold it. If the time is long, the hands of medical staff will become sore, resulting in instability of the fracture end, which affects the doctor in inserting the Kirschner wire. In order to achieve better fixation and traction effects, it is necessary to fix and traction the metacarpal fracture site to ensure good treatment effects. Therefore, for effective traction and fixation during the operation and completing an operation with time-saving, labor-saving and less manpower, it is a technical problem that needs to be solved currently. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a metacarpal fracture traction and reduction device with a simple structure, convenient operation, which can effectively traction and stabilize the metacarpal fracture site, and can save time, labor and manpower.

[0004] The utility model is realized as follows: A metacarpal fracture traction and reduction device, comprising

[0005] A T-shaped frame, comprising a cross bar and a vertical bar, the cross bar and the vertical bar are of an integral molding structure, the cross bar is arranged at one end of the vertical bar and protrudes from the horizontal plane of the vertical bar;

[0006] A ratchet tightener, fixed at the other end of the vertical bar;

[0007] A traction finger sleeve, having an open end and a closed end, the closed end is connected to the rotating shaft of the ratchet tightener through a fixing rope;

[0008] A binding band, fixing the vertical bar of the T-shaped frame to the wrist.

[0009] Further, the vertical bar of the T-shaped frame is of a square structure, the outer side surface of the end connected to the cross bar is of an arc structure, the longitudinal section of the cross bar is of a fan-shaped structure, and the inner side surface at the connection of the cross bar and the vertical bar has an arc transition block, the arc transition block is integrally formed with the cross bar and protrudes from both side surfaces of the vertical bar at both ends.

[0010] Further, the traction finger sleeve is of a mesh structure, and its main body is woven with nylon material.

[0011] Further, one end of the binding band is fixed on the vertical bar, and the other end is provided with a magic tape for connection and fixation.

[0012] Further, the T-shaped frame is made of polycarbonate material.

[0013] The advantages of the present utility model are as follows: By setting the T-shaped frame and fixing it on the wrist and palm of the patient, and the patient holds the cross bar, it is used to reduce the fracture of the patient; by setting the ratchet tightener and the traction finger sleeve, the traction finger sleeve can be sleeved on the finger of the patient with a metacarpal fracture, and the traction finger sleeve is gradually tightened by the rotation of the ratchet tightener. The traction finger sleeve can be gradually tightened during the traction process and will not loosen, achieving the purpose of effective traction; by setting the strap, the vertical rod of the T-shaped frame can be fixed on the wrist of the patient to prevent wrist joint flexion during traction. The present utility model provides a metacarpal fracture traction and reduction device with a simple structure, convenient operation, which can effectively perform effective traction and stabilization on the metacarpal fracture, reduce the pusher of the operator on the fracture end, and does not require the operator to continuously maintain the reduction by traction, saving time, effort and manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following further describes the present utility model with reference to the accompanying drawings in conjunction with embodiments.

[0015] Figure 1 It is a schematic structural diagram of the T-shaped frame of the present utility model.

[0016] Figure 2 It is a schematic structural diagram of the T-shaped frame and the strap of the present utility model.

[0017] Figure 3 It is a schematic structural diagram of the ratchet tightener and the traction finger sleeve of the present utility model.

[0018] Figure 4 It is a schematic structural diagram of the use of a metacarpal fracture traction and reduction device of the present utility model.

[0019] Explanation of the reference numerals in the drawings: Traction and reduction device 100, T-shaped frame 1, cross bar 11, vertical rod 12, arc structure 121, arc transition block 13, ratchet tightener 2, frame 21, handle 22, ratchet 23, rotating shaft 231, pawl 24, spring 25, traction finger sleeve 3, open end 31, closed end 32, fixing rope 33, strap 4, magic tape 41, wrist 5. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] As Figures 1 to 4As shown in the figure, a metacarpal fracture traction reduction device 100 includes a T-shaped frame 1, a ratchet tightener 2, a traction finger sleeve 3, and a strap 4.

[0022] The T-shaped frame 1 is made of polycarbonate material and includes a cross bar 11 and a vertical bar 12. The cross bar 11 and the vertical bar 12 are of an integrally formed structure. The cross bar 11 is arranged at one end of the vertical bar 12 and protrudes from the horizontal plane of the vertical bar 12. The vertical bar 12 is of a square structure, and the outer side surface of the end connected to the cross bar 11 is an arc structure 121. The arc structure 121 on the outer side surface of one end of the vertical bar 12 can facilitate the reduction of friction and resistance during traction of the traction finger sleeve 3. The longitudinal section of the cross bar 11 is a fan-shaped structure, and an arc-shaped transition block 13 is provided on the inner side surface at the connection between the cross bar 11 and the vertical bar 12. The arc-shaped transition block 13 is integrally formed with the cross bar 11 and protrudes from both side surfaces of the vertical bar 12 at both ends. An arc-shaped transition block 13 is provided at the connection of the inner side surfaces of the cross bar 11 and the vertical bar 12. When the patient holds the cross bar 11 of the T-shaped frame 1, according to the key points of metacarpal reduction, the arc-shaped transition block 13 can lift the metacarpal head during traction, and the reduction purpose can be achieved through the extensor tendon of the finger and the remaining fascia chain.

[0023] The ratchet tightener 2 is fixed to the other end of the vertical bar 12 by bolts or fixing glue. The ratchet tightener 2 is a prior art and includes a frame 21, a handle 22, a ratchet 23, a pawl 24, and a spring 25. The two ratchets 23 are rotatably arranged on the frame 21, and a rotating shaft 231 is arranged between the two ratchets 23. The rotation of the ratchet 23 can achieve one-way intermittent movement. The pawl 24 is matched with the ratchet 23, and when the pawl swings, it is embedded between the teeth of the ratchet 23 to drive the ratchet 23 to rotate. The check pawl prevents the ratchet from rotating in the reverse direction. The spring 25 is used to maintain the contact between the pawl 24 and the ratchet 23 to ensure that the pawl 24 can correctly push or prevent the rotation of the ratchet 23. The ratchet tightener 2 is operated through the handle 22 to achieve the one-way locking or movement of the ratchet 23.

[0024] The traction finger sleeve 3 is of a mesh structure, and its main body is woven with nylon material. It has an open end 31 and a closed end 32. The closed end 32 is connected to the rotating shaft 231 of the ratchet tightener 2 through a fixing rope 33. By rotating the rotating shaft 231, the fixing rope 33 can be wound around the rotating shaft 231, gradually stretching the traction finger sleeve 3. One end of the strap 4 is fixed to the vertical bar 12, and the other end is provided with a magic tape 41. The strap 4 winds and fixes the vertical bar 12 of the T-shaped frame 1 to the wrist and is fixed by the magic tape 41.

[0025] When in use, the patient first holds the cross bar 11 of the T-frame 1, and the cross bar 11 is stuck in the base of the patient's hand to prevent dislocation during traction. Then, the patient's wrist 5 and the vertical bar 12 are wrapped and fixed with the strap 4 to fix the patient's wrist and the vertical bar 12 to prevent wrist flexion during traction. Then, the finger with metacarpal fracture is put into the open end 31 of the traction finger sleeve 3, and finally, the handle 22 of the ratchet tightener 2 is operated to gradually tighten the fixing rope 33. The traction finger sleeve 3 can be gradually tightened during traction by the gathering of the nylon line without loosening, so as to achieve the purpose of effective traction. When the traction reaches the desired effect, the ratchet tightener 2 is locked to rotate to achieve traction and stabilization, which can facilitate the subsequent Kirschner wire insertion by medical staff. When it is necessary to loosen the fixing rope 33, the ratchet pawl can be manually withdrawn from the ratchet 23 to pull the fixing rope 33 out of the rotating shaft 231.

[0026] The utility model is provided with a T-shaped frame 1, which is fixed on the patient's wrist and palm, and the patient holds the horizontal bar 11 to reset the patient's fracture. The outer side surface of one end of the vertical bar 12 is an arc-shaped structure, which can facilitate the traction finger sleeve to reduce friction and resistance during traction; by providing a ratchet tightener 2 and a traction finger sleeve 3, the traction finger sleeve 3 can be sleeved on the patient's metacarpal fracture finger, and the traction finger sleeve 3 can be gradually tightened by rotating the ratchet tightener 2. The traction finger sleeve 3 can be gradually tightened during the traction process without loosening, thereby achieving the purpose of effective traction; by providing a strap 4, the vertical bar 12 of the T-shaped frame 1 can be fixed on the patient's wrist to prevent the wrist joint from flexing during the traction process. The utility model provides a metacarpal fracture traction reducer 100 with a simple structure and convenient operation, which can effectively pull and stabilize the metacarpal fracture, reduce the operator's pushing on the fracture end, and does not require the operator to continuously pull to maintain the reduction, thereby saving time, labor and manpower.

[0027] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A metacarpal fracture traction reduction device, characterized in that: Comprising a T-shaped frame, including a cross bar and a vertical bar, the cross bar and the vertical bar being of an integrally formed structure, the cross bar being disposed at one end of the vertical bar and protruding from the horizontal plane of the vertical bar; a ratchet tightener fixed to the other end of the vertical bar; a traction finger sleeve having an open end and a closed end, the closed end being connected to the rotating shaft of the ratchet tightener by a fixing rope; a strap for fixing the vertical bar of the T-shaped frame to the wrist.

2. The metacarpal fracture traction and reduction device according to claim 1, wherein: The vertical bar of the T-shaped frame is of a square structure, the outer side surface of the end thereof connected to the cross bar being of an arc-shaped structure, the longitudinal section of the cross bar being of a fan-shaped structure, and an arc-shaped transition block being provided on the inner side surface at the connection between the cross bar and the vertical bar, the arc-shaped transition block being integrally formed with the cross bar and protruding from both side surfaces of the vertical bar at both ends.

3. The metacarpal fracture traction and reduction device according to claim 1, characterized in that: The traction finger sleeve is of a mesh structure and its main body is woven from nylon material.

4. The metacarpal fracture traction and reduction device according to claim 1, wherein: One end of the strap is fixed to the vertical bar and the other end is provided with a magic tape for connection and fixation.

5. The metacarpal fracture traction and reduction device according to claim 1, wherein: The T-shaped frame is made of polycarbonate material.

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