Limb fracture reduction tensioner

Abstract

The utility model relates to the technical field of medical instruments, in particular to a limb fracture reduction tensioner which comprises a spreader main body and spreading plates, the spreading plates are symmetrically arranged at the bottom of the spreader main body, a rotating assembly is arranged between the spreader main body and the spreading plates, and the rotating assembly is connected with the spreader main body. The spreader body drives the spreading plate to rotate through the rotating assembly, and a telescopic assembly is arranged at the bottom of the spreading plate. Through the arranged rotating assembly, a rotating rod rotates in a fixing base, a connecting block drives an opening plate to rotate from a longitudinal state to a transverse state, then a connecting rod is pushed by using the restoring force of a spring to drive an inserting rod to rotate into an inserting groove, and therefore the purpose of containing the opening plate is achieved, medical staff can conveniently contain the opening plate, and the medical staff can conveniently use the opening plate. Therefore, medical staff can conveniently carry the dilator main body.

Description

Technical Field

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

[0002] The limb fracture reduction and distraction device consists of a distraction screw, a positioning fixture, and a positioning pin. It is used to treat intra-articular fractures of the limbs and shortening and displacement of diaphyseal fractures. The positioning pins are driven into the diaphyseal shaft on both sides of the limb fracture ends. The positioning pins are then secured using the positioning fixture. The distraction screw and the positioning fixture then expand and secure the pins, thereby distracting and securing the limb fracture ends. This limb fracture reduction and distraction device can replace manual traction and effectively improve reduction results. The distraction device can stabilize the fracture site, prevent further dislocation, and promote proper bone healing.

[0003] During use of existing spreaders, the spreader body is generally fixedly connected to the spreader plate. Since the spreader plate occupies a large external space, it is inconvenient for medical staff to store the spreader plate and it is also inconvenient to carry. Therefore, we propose a limb fracture reduction tensioner. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the utility model provides a limb fracture reduction tensioner, which is provided with a rotating assembly and a rotating rod that rotates in a fixed seat, so that the connecting block drives the expansion plate to rotate from a longitudinal state to a transverse state, and then the restoring force of the spring is used to push the connecting rod to drive the insertion rod into the slot, thereby achieving the purpose of storing the expansion plate, making it convenient for medical staff to store the expansion plate and to carry the expander body.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a limb fracture reduction tensioner, comprising a spreader body and a spreader plate, the spreader plate being symmetrically arranged at the bottom of the spreader body, a rotating assembly being arranged between the spreader body and the spreader plate, the spreader body driving the spreader plate to rotate through the rotating assembly, and a telescopic assembly being provided at the bottom of the spreader plate.

[0006] As an optimal technical solution of the present invention, the rotating assembly includes a fixed seat arranged on the bottom end surface of the spreader body, a rotating rod is rotated in the fixed seat, a spring groove is provided on the rotating rod and the right end surface of the fixed seat, a sliding groove is provided on the inner wall of the spring groove, a slider slides in the sliding groove, a connecting rod is provided on the outer wall of the slider, a spring is provided between the connecting rod and the spring groove, one end of the spring is fixed on the inner wall of the connecting rod, and the other end of the spring is fixed on the inner wall of the spring groove, two groups of plug rods are provided on the outer wall of the connecting rod, and a connecting block is provided on the bottom end surface of the rotating rod, the bottom end of the connecting block is connected to the top of the spreader plate, and slots are provided on the connecting block surfaces corresponding to the outer end surfaces of the plug rod.

[0007] As a preferred technical solution of the present invention, the insertion rods are designed to be L-shaped, and the angle between the two groups of insertion rods is 90°.

[0008] As a preferred technical solution of the present invention, the slider is designed to be semicircular, and the sliding groove is provided as a through hole adapted to the slider.

[0009] As an optimal technical solution of the present invention, the telescopic component includes a storage groove provided on the bottom end surface of the support plate, an auxiliary plate is slid in the storage groove, a guide groove is provided on the side end surface of the support plate, a threaded rod is provided on the surface of the auxiliary plate in the guide groove, a nut is threadedly connected to the threaded rod, and multiple sets of limit grooves are provided on the surface of the support plate corresponding to the inner end surface of the nut.

[0010] As a preferred technical solution of the present invention, four groups of limit grooves are provided, and the four groups of limit grooves are designed with equal spacing.

[0011] As a preferred technical solution of the present invention, the outer wall of the nut is provided with anti-slip lines, and the depth of the limiting groove is half of the thickness of the nut.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The rotating assembly is provided, and the rotating rod rotates in the fixed seat, so that the connecting block drives the expansion plate to rotate from the longitudinal state to the transverse state. Then, the restoring force of the spring is used to push the connecting rod to drive the insertion rod to rotate into the slot, thereby achieving the purpose of storing the expansion plate, making it convenient for medical staff to store the expansion plate and carry the expansion device body;

[0014] 2. By setting up a telescopic component, by adding an auxiliary plate inside the expanded plate, and then by rotating the nut on the threaded rod, the nut is driven by the auxiliary plate and rotated into different limit slots, the purpose of adjusting the length of the auxiliary plate can be achieved, so that medical staff can adjust the length of the auxiliary plate according to the length they need. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the first three-dimensional cross-sectional structure of the present invention;

[0017] Figure 3 This is a schematic diagram of a second three-dimensional cross-sectional structure of the present invention;

[0018] Figure 4 For the utility model Figure 2 A schematic diagram of the enlarged structure at point A in the middle;

[0019] Figure 5 For the utility model Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0020] Among them: 1. Opener body; 2. Opening plate; 3. Rotating assembly; 31. Fixed seat; 32. Rotating rod; 33. Spring slot; 34. Slide; 35. Slider; 36. Connecting rod; 37. Spring; 38. Insert rod; 39. Connecting block; 310. Slot; 4. Telescopic assembly; 41. Storage slot; 42. Auxiliary plate; 43. Guide slot; 44. Threaded rod; 45. Nut; 46. Limiting slot. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, purpose and efficacy of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without making creative work are all within the scope of protection of the present invention. The experimental methods in the following embodiments are all conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0022] Example:

[0023] See also Figure 1 - Figure 5 A limb fracture reduction tensioner includes a spreader body 1 and a spreader plate 2. The spreader plate 2 is symmetrically arranged at the bottom of the spreader body 1. A rotating component 3 is arranged between the spreader body 1 and the spreader plate 2. The spreader body 1 drives the spreader plate 2 to rotate through the rotating component 3. A telescopic component 4 is provided at the bottom of the spreader plate 2.

[0024] By setting up the rotating assembly 3, the rotating rod 32 rotates in the fixed seat 31, so that the connecting block 39 drives the expansion plate 2 to rotate from the longitudinal state to the transverse state, and then the restoring force of the spring 37 is used to push the connecting rod 36 to drive the insertion rod 38 to rotate into the slot 310, thereby achieving the purpose of storing the expansion plate 2, making it convenient for medical staff to store the expansion plate 2, so that medical staff can carry the expander body 1.

[0025] In other embodiments, the rotating assembly 3 includes a fixing seat 31 provided on the bottom end surface of the spreader body 1, a rotating rod 32 is rotated in the fixing seat 31, a spring groove 33 is provided on the right end surface of the rotating rod 32 and the fixing seat 31, a sliding groove 34 is provided on the inner wall of the spring groove 33, a slider 35 slides in the sliding groove 34, a connecting rod 36 is provided on the outer wall of the slider 35, a spring 37 is provided between the connecting rod 36 and the spring groove 33, one end of the spring 37 is fixed on the inner wall of the connecting rod 36, and the other end of the spring 37 is fixed on the inner wall of the spring groove 33, two groups of insertion rods 38 are provided on the outer wall of the connecting rod 36, a connecting block 39 is provided on the bottom end surface of the rotating rod 32, the bottom end of the connecting block 39 is connected to the top end of the spreader plate 2, and a slot 310 is provided on the surface of the connecting block 39 corresponding to the outer end surface of the insertion rod 38;

[0026] When in use, first pull the insertion rod 38 in the direction away from the fixing seat 31, so that the insertion rod 38 drives the slider 35 to slide in the sliding groove 34 through the connecting rod 36, and at the same time the connecting rod 36 continuously stretches the spring 37 until the insertion rod 38 slides out of the slot 310, and then rotate the expansion plate 2, so that the expansion plate 2 drives the rotating rod 32 to slide in the fixing seat 31 through the connecting block 39, and the expansion plate 2 is rotated from the longitudinal state to the transverse state. Then release the insertion rod 38, use the restoring force of the spring 37 to drive the connecting rod 36 to reset and slide in the spring groove 33, and make the connecting rod 36 synchronously drive the insertion rod 38 to slide into the slot 310 and abut against the slot 310, thereby achieving the purpose of storing the expansion plate 2, making it convenient for medical staff to store the expansion plate 2, so that medical staff can carry the expander body 1.

[0027] In other embodiments, the insertion rods 38 are designed in an L-shape, and the angle between the two sets of insertion rods 38 is 90°;

[0028] This design can prevent medical staff from slipping when pulling the insertion rod 38. At the same time, by rotating the connecting block 39 to align with the two sets of slots 310, the expansion plate 2 can be switched between the use and storage states.

[0029] In other embodiments, the slider 35 is designed to be semicircular, and the slide groove 34 is provided as a through hole adapted to the slider 35 ;

[0030] This design can increase the friction between the slider 35 and the slide groove 34 , thereby ensuring that the slider 35 is more stable when sliding back and forth in the slide groove 34 .

[0031] In other embodiments, the telescopic assembly 4 includes a receiving groove 41 formed on the bottom surface of the expansion plate 2, an auxiliary plate 42 slides in the receiving groove 41, a guide groove 43 is formed on the side surface of the expansion plate 2, a threaded rod 44 is formed on the surface of the auxiliary plate 42 in the guide groove 43, a nut 45 is threadedly connected to the threaded rod 44, and a plurality of limit grooves 46 are formed on the surface of the expansion plate 2 corresponding to the inner end surface of the nut 45;

[0032] When in use, first turn the nut 45 so that the nut 45 is threaded on the threaded rod 44 and the nut 45 is rotated out of the limit groove 46. Then, push the nut 45 toward the bottom of the support plate 2 so that the nut 45 drives the auxiliary plate 42 to slide in the receiving groove 41 through the threaded rod 44 and the auxiliary plate 42 slides out of the receiving groove 41. Then, turn the nut 45 again so that the nut 45 is rotated on the threaded rod 44 and rotated into another set of limit grooves 46. This can achieve the purpose of limiting the sliding of the auxiliary plate 42, allowing medical staff to adjust the length of the auxiliary plate 42 according to the length they need.

[0033] In other embodiments, four groups of limiting grooves 46 are provided, and the four groups of limiting grooves 46 are designed with equal spacing;

[0034] Through this design, the auxiliary plate 42 can slide in the storage groove 41, and the auxiliary plate 42 can drive the nut 45 to slide to align with different limit grooves 46. Then, by rotating the nut 45 on the threaded rod 44, the nut 45 is turned into the limit groove 46, thereby achieving the purpose of adjusting the length of the auxiliary plate 42.

[0035] In other embodiments, the outer wall of the nut 45 is provided with anti-slip textures, and the depth of the limiting groove 46 is half of the thickness of the nut 45;

[0036] This design makes it easier for medical staff to rotate the nut 45 and prevents the hand from slipping when rotating the nut 45, which makes it difficult for medical staff to adjust the length of the auxiliary plate 42.

[0037] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0038] 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 to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A limb fracture reduction tensioner, comprising a spreader body (1) and a spreader plate (2), wherein the spreader body (1) is symmetrically provided with the spreader plate (2) at the bottom, characterized in that: A rotating assembly (3) is provided between the expander body (1) and the expander plate (2); the expander body (1) drives the expander plate (2) to rotate via the rotating assembly (3); and a telescopic assembly (4) is provided at the bottom of the expander plate (2).

2. The limb fracture reduction tensioner according to claim 1, characterized in that: The rotating assembly (3) includes a fixed seat (31) arranged on the bottom end surface of the spreader body (1), a rotating rod (32) is rotated in the fixed seat (31), a spring groove (33) is provided on the right end surface of the rotating rod (32) and the fixed seat (31), a sliding groove (34) is provided on the inner wall of the spring groove (33), a slider (35) slides in the sliding groove (34), a connecting rod (36) is provided on the outer wall of the slider (35), and the connecting rod (36) and the spring groove (33) are connected. A spring (37) is provided between the connecting rod (36), one end of the spring (37) is fixed on the inner wall of the connecting rod (36), and the other end of the spring (37) is fixed on the inner wall of the spring groove (33). Two groups of plug rods (38) are provided on the outer wall of the connecting rod (36). A connecting block (39) is provided on the bottom surface of the rotating rod (32). The bottom end of the connecting block (39) is connected to the top of the support plate (2). A slot (310) is provided on the surface of the connecting block (39) corresponding to the outer end surface of the plug rod (38).

3. The limb fracture reduction tensioner according to claim 2, characterized in that: The insertion rods (38) are designed to be L-shaped, and the angle between the two groups of the insertion rods (38) is 90°.

4. The limb fracture reduction tensioner according to claim 2, characterized in that: The slider (35) is designed to be semicircular, and the slide groove (34) is provided as a through hole adapted to the slider (35).

5. The limb fracture reduction tensioner according to claim 1, characterized in that: The telescopic assembly (4) includes a receiving groove (41) provided on the bottom surface of the expansion plate (2), an auxiliary plate (42) is slidably arranged in the receiving groove (41), a guide groove (43) is provided on the side surface of the expansion plate (2), a threaded rod (44) is provided on the surface of the auxiliary plate (42) in the guide groove (43), a nut (45) is threadedly connected to the threaded rod (44), and a plurality of limit grooves (46) are provided on the surface of the expansion plate (2) corresponding to the inner end surface of the nut (45).

6. The limb fracture reduction tensioner according to claim 5, characterized in that: The limiting grooves (46) are provided in four groups, and the four groups of limiting grooves (46) are all designed with equal spacing.

7. The limb fracture reduction tensioner according to claim 5, characterized in that: The outer wall of the nut (45) is provided with anti-slip lines, and the depth of the limiting groove (46) is half of the thickness of the nut (45).

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