Fracture repositor

Abstract

The utility model relates to the technical field of medical instruments, in particular to a fracture reduction device which is fixedly installed on a main screw through a supporting rod, a first positioning ring is fixedly installed on the supporting rod, a plurality of sets of first positioning holes are formed in the first positioning ring, a plurality of sets of second positioning holes are formed in a second positioning ring, a first steel needle is further arranged on the first positioning ring, and a second steel needle is further arranged on the second positioning ring. A second steel needle is further arranged on the second positioning ring, the fixing rod is installed on the main screw rod through the connecting assembly, the clamping block is fixedly installed on the fixing rod, the inner threaded barrel penetrates through the fixing rod and is located between the main screw rod and the clamping block, the connecting screw rod is in threaded connection with the inner threaded barrel, and the second positioning ring is fixedly connected with the connecting screw rod. The connecting assembly drives an internal thread barrel to be aligned with a connecting screw rod through a fixing rod, and the connecting screw rod and a second positioning ring drive the limb fracture position of the patient to be reset by moving and rotating the internal thread barrel, so that the fine adjustment effect during fracture reduction of the patient is achieved, and the patient is prevented from being subjected to secondary injury.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a fracture reducer. Background Art

[0002] Conventional fracture reducers are inconvenient to install and disassemble, and are mostly in one piece, which is not easy to store and carry, causing inconvenience to medical staff. In addition, the existing reducer clamps have no protective function and are clamped on the patient's limbs for a long time, causing bruises on the skin of the patient's limbs.

[0003] The existing patent CN213910752U limb fracture reducer, when in use, put the patient's leg or arm fracture into the first clamp, then merge the second clamp with the first clamp, and clamp the first clamp and the second clamp together through the first wedge block and the second wedge block, and the soft cushion is beneficial to protect the patient's body, then pass the threaded connecting rod through the mounting hole, fix the threaded connecting rod on the second clamp through the fixing ring, and then adjust the two sets of connecting rings to the patient's limb fracture, insert two steel needles into the patient's limb fracture respectively, and then adjust the distance between the two sets of steel needles according to the limiting ring to achieve the reduction of the patient's fracture, and then fix the limiting ring at the current position through the fixing bolt. After the steel needle is inserted into the patient's limb and the distance is adjusted, the steel needle cannot be moved at will and is firmly fixed at the current position.

[0004] However, in the process of using the existing patented limb fracture reducer, after the two sets of clamps are respectively installed on the patient's limb fracture, the fracture needs to be manually reduced preliminarily before the threaded connecting rod can be passed through the clamps on both sides for positioning. However, manual manipulation is not convenient for fine-tuning, which may easily cause secondary injuries to the patient during the reduction process. Utility Model Content

[0005] The purpose of the utility model is to provide a fracture reducer, which solves the problem that after two sets of clamps are respectively installed on the fractured parts of the patient's limbs, the fracture needs to be initially reduced manually before the threaded connecting rod can be passed through the clamps on both sides for positioning, but the manual technique is not convenient for fine-tuning, which makes it easy for the patient to suffer secondary injuries during the reduction process.

[0006] To achieve the above-mentioned objectives, the utility model provides a fracture reducer, comprising a first positioning ring, a second positioning ring, a support rod and a main screw, the support rod being fixedly mounted on the main screw, the first positioning ring being fixedly mounted on the support rod, the first positioning ring being provided with multiple groups of first positioning holes, the second positioning ring being provided with multiple groups of second positioning holes, the first positioning ring being further provided with a first steel needle, the second positioning ring being further provided with a second steel needle, and also comprising a fine-tuning device, the fine-tuning device comprising a connecting screw, a fixing rod, a block, an internally threaded barrel and a connecting assembly, the fixing rod being slidably mounted on the main screw through the connecting assembly, the block being fixedly mounted on the fixing rod and being located at an end of the fixing rod away from the main screw, the internally threaded barrel penetrating the fixing rod and being located between the main screw and the block, the connecting screw being threadedly connected to the internally threaded barrel, and the second positioning ring being fixedly connected to the connecting screw.

[0007] Wherein, the connecting assembly includes a collar and a locking assembly, and the collar is slidably mounted on the main screw through the locking assembly and is fixedly connected to the fixing rod.

[0008] Wherein, the locking assembly includes a first locking nut and a second locking nut, the first locking nut and the second locking nut are respectively threadedly connected to the main screw, and the first locking nut and the second locking nut are respectively located on both sides of the ring.

[0009] Wherein, the fine-tuning device also includes a positioning assembly, and the positioning assembly includes a positioning screw and a third locking nut. The positioning screw passes through the first positioning hole and the second positioning hole respectively; the third locking nut is threadedly connected to the positioning screw.

[0010] Wherein, the internally threaded barrel is also provided with a protrusion, and the protrusion is fixedly mounted on the outer surface of the internally threaded barrel.

[0011] The utility model provides a fracture reducer. When in use, the first positioning ring is passed through the fracture of a patient's limb so that the first positioning ring is located on one side of the fracture. The first steel needle is then inserted into the patient's limb. The second positioning ring is then passed through the patient's limb so that the second positioning ring is located on the other side of the fracture of the limb. The second steel needle is then inserted into the patient's limb. The first locking nut and the second locking nut are then respectively rotated so that the collar drives the fixing rod fixedly connected to the collar to move to the position of the second positioning ring. The collar is then rotated so that the collar drives the internal threaded tube to align with the connecting screw through the fixing rod. The collar is then rotated again. Move the first locking nut and the second locking nut to lock the collar, then move the internal threaded cylinder outward along the fixing rod so that the connecting screw enters the internal threaded cylinder, and then slowly rotate the internal threaded cylinder so that the connecting screw drives the patient's limb fracture to be reset through the second positioning ring. At this time, the first positioning ring and the second positioning ring are aligned, the positioning screw is passed through the first positioning hole and the second positioning hole respectively, and the third locking nut on the positioning screw is tightened to maintain the positions of the first positioning ring and the second positioning ring, thereby achieving a fine-tuning effect when resetting the patient's fracture and avoiding secondary injury to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 It is a schematic diagram of the overall structure of a fracture reducer according to the first embodiment of the utility model.

[0014] Figure 2 It is a schematic diagram of the connection between the internal threaded cylinder and the fixing rod in the first embodiment of the utility model.

[0015] Figure 3 It is a schematic diagram of the overall structure of a fracture reducer according to the second embodiment of the utility model.

[0016] In the figure: 101-first positioning ring, 102-second positioning ring, 103-main screw, 104-first positioning hole, 105-second positioning hole, 106-connecting screw, 107-fixing rod, 108-block, 109-inner threaded tube, 110-ring, 111-first locking nut, 112-second locking nut, 113-positioning screw, 114-third locking nut, 115-first steel needle, 116-second steel needle, 117-support rod, 201-protrusion. DETAILED DESCRIPTION

[0017] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0018] The first embodiment of the present application is:

[0019] See also Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the overall structure of a fracture reducer according to the first embodiment of the utility model. Figure 2 It is a schematic diagram of the connection between the internal threaded cylinder and the fixing rod in the first embodiment of the utility model.

[0020] The utility model provides a fracture reducer: comprising a first positioning ring 101, a second positioning ring 102, a support rod 117 and a main screw 103, and also comprising a fine-tuning device, wherein the fine-tuning device comprises a connecting screw 106, a fixing rod 107, a block 108, an internal threaded tube 109 and a connecting assembly, wherein the connecting assembly comprises a collar 110 and a locking assembly, wherein the locking assembly comprises a first locking nut 111 and a second locking nut 112, and the fine-tuning device also comprises a positioning assembly, wherein the positioning assembly comprises a positioning screw 113 and a third locking nut 114. The above-mentioned scheme solves the problem that after the two sets of clamps are respectively installed on the fracture of the patient's limb, the fracture needs to be manually reset first before the threaded connecting rod can be passed through the clamps on both sides for positioning, but the manual technique is not convenient for fine-tuning, which makes it easy for the patient to suffer secondary injury during the reduction process. It can be understood that the present scheme can also be used to solve the problem that it is not convenient to drive the internal threaded tube to rotate.

[0021] In this embodiment, the connecting assembly drives the internal threaded tube 109 to align with the connecting screw 106 through the fixing rod 107, and by moving and rotating the internal threaded tube 109, the connecting screw 106 and the second positioning ring 102 drive the patient's limb fracture to be reduced, thereby achieving a fine-tuning effect when reducing the patient's fracture and avoiding secondary injury to the patient.

[0022] The fixing rod 107 is slidably mounted on the main screw 103 through the connecting assembly, the block 108 is fixedly mounted on the fixing rod 107 and is located at the end of the fixing rod 107 away from the main screw 103, the internal threaded barrel 109 passes through the fixing rod 107 and is located between the main screw 103 and the block 108, the connecting screw 106 is threadedly connected to the internal threaded barrel 109, the second positioning ring 102 is fixedly connected to the connecting screw 106, and the connecting screw 106 is welded to the outer wall of the second positioning ring 102, the fixing rod 107 is a round rod structure, the block 108 is a disc structure, and the block 108 is welded to the fixing rod 107 The internal threaded barrel 109 is provided with an internal thread inside, and the inner wall diameter of the internal threaded barrel 109 is the same as the diameter of the block 108. The connecting component enables the fixing rod 107 to have a better adjustment effect. The position of the fixing rod 107 is adjusted by the connecting component so that the internal threaded barrel 109 is aligned with the connecting screw 106, and the internal threaded barrel 109 is moved so that the connecting screw 106 enters the internal threaded barrel 109, and then the internal threaded barrel 109 is slowly rotated again, so that the connecting screw 106 and the second positioning ring 102 drive the patient's limb fracture to be reset, thereby achieving a fine-tuning effect on the patient's fracture reduction and avoiding secondary injury to the patient.

[0023] Secondly, the ring 110 is slidably installed on the main screw 103 through the locking assembly and is fixedly connected to the fixing rod 107. The ring 110 is annular in structure, and the inner wall diameter of the ring 110 is slightly larger than the diameter of the main screw 103. The locking assembly enables the ring 110 to have a better fixing effect. By moving and rotating the ring 110 along the main screw 103, the ring 110 drives the fixing rod 107 to move and rotate, thereby achieving an adjustment effect on the fixing rod 107.

[0024] Again, the first locking nut 111 and the second locking nut 112 are respectively threadedly connected to the main screw 103, and the first locking nut 111 and the second locking nut 112 are respectively located on both sides of the ring 110, and the first locking nut 111 and the second locking nut 112 both adopt hexagonal nuts, and by rotating the first locking nut 111 and the second locking nut 112 respectively, the first locking nut 111 and the second locking nut 112 are respectively abutted against the two sides of the ring 110, so that the ring 110 cannot move, thereby achieving the fixing effect of the ring 110.

[0025] Finally, the positioning screw 113 passes through the first positioning hole 104 and the second positioning hole 105 respectively; the third locking nut 114 is threadedly connected to the positioning screw 113, the length of the positioning screw 113 is the same as the length of the main screw 103, the diameter of the positioning screw 113 is slightly smaller than the diameter of the first positioning hole 104 and the second positioning hole 105, and the third locking nut 114 adopts a hexagonal nut. Through the locking effect of the positioning screw 113 and the third locking nut 114, the positioning effect of the first positioning ring 101 and the second positioning ring 102 is achieved.

[0026] In this embodiment, when in use, the first positioning ring 101 is passed through the fracture of the patient's limb so that the first positioning ring 101 is located on one side of the fracture, and then the first steel needle 115 is driven into the patient's limb, and then the second positioning ring 102 is passed through the patient's limb so that the second positioning ring 102 is located on the other side of the fracture of the limb, and the second steel needle 116 is driven into the patient's limb, and then the first locking nut 111 and the second locking nut 112 are rotated respectively, so that the collar 110 drives the fixing rod 107 fixedly connected to the collar 110 to move to the position of the second positioning ring 102, and the collar 110 is rotated so that the collar 110 drives the internal threaded tube 109 to align with the connecting screw 106 through the fixing rod 107, and then the first locking nut is rotated again. The nut 111 and the second locking nut 112 lock the ring 110, and then move the internal threaded tube 109 outward along the fixing rod 107 so that the connecting screw 106 enters the internal threaded tube 109, and then slowly rotate the internal threaded tube 109 so that the connecting screw 106 drives the patient's limb fracture to be reset through the second positioning ring 102. At this time, the first positioning ring 101 and the second positioning ring 102 are aligned, and the positioning screw 113 is respectively passed through the first positioning hole 104 and the second positioning hole 105, and the third locking nut 114 on the positioning screw 113 is tightened to maintain the positions of the first positioning ring 101 and the second positioning ring 102, thereby achieving a fine-tuning effect when resetting the patient's fracture and avoiding secondary injury to the patient.

[0027] The second embodiment of the present application is:

[0028] See also Figure 3 ,in Figure 3 20 is a schematic diagram of the overall structure of a fracture reducer according to the second embodiment of the utility model. On the basis of the first embodiment, the fracture reducer according to this embodiment further includes a protrusion 201 .

[0029] In this embodiment, the protrusion 201 is provided so that when the internal thread barrel 109 is rotated, the internal thread barrel 109 can be driven to rotate better.

[0030] Among them, the protrusion 201 is fixedly installed on the outer surface of the internal threaded barrel 109, the protrusion 201 is in the shape of a long strip, the number of the protrusions 201 is multiple groups, and they are distributed in a ring along the axis of the internal threaded barrel 109. Through the setting of the protrusion 201, when the internal threaded barrel 109 is rotated, the internal threaded barrel 109 can be better driven to rotate.

[0031] In this embodiment, the protrusion 201 is provided so that when the internal thread barrel 109 is rotated, the internal thread barrel 109 can be driven to rotate better.

[0032] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A fracture reducer, comprising a first positioning ring, a second positioning ring, a support rod and a main screw, wherein the support rod is fixedly mounted on the main screw, the first positioning ring is fixedly mounted on the support rod, the first positioning ring is provided with a plurality of first positioning holes, the second positioning ring is provided with a plurality of second positioning holes, the first positioning ring is further provided with a first steel needle, and the second positioning ring is further provided with a second steel needle, characterized in that: Also includes fine-tuning device; The fine-tuning device includes a connecting screw, a fixed rod, a block, an internally threaded barrel and a connecting assembly. The fixed rod is slidably mounted on the main screw through the connecting assembly. The block is fixedly mounted on the fixed rod and is located at an end of the fixed rod away from the main screw. The internally threaded barrel penetrates the fixed rod and is located between the main screw and the block. The connecting screw is threadedly connected to the internally threaded barrel, and the second positioning ring is fixedly connected to the connecting screw.

2. The fracture reducer according to claim 1, characterized in that: The connecting assembly comprises a collar and a locking assembly. The collar is slidably mounted on the main screw through the locking assembly and is fixedly connected to the fixing rod.

3. The fracture reducer according to claim 2, characterized in that: The locking assembly includes a first locking nut and a second locking nut, the first locking nut and the second locking nut are respectively threadedly connected to the main screw, and the first locking nut and the second locking nut are respectively located on both sides of the collar.

4. The fracture reducer according to claim 1, characterized in that: The fine-tuning device also includes a positioning assembly, which includes a positioning screw and a third locking nut. The positioning screw passes through the first positioning hole and the second positioning hole respectively; the third locking nut is threadedly connected to the positioning screw.

5. The fracture reducer according to claim 1, characterized in that: The inner threaded barrel is also provided with a protrusion, and the protrusion is fixedly mounted on the outer surface of the inner threaded barrel.

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