Auxiliary fixing device for tendon rupture

Abstract

The invention discloses a tendon rupture auxiliary fixing device, and relates to the technical field of tendon repair, the tendon rupture auxiliary fixing device comprises a fixing nail and two fixing assemblies, each fixing assembly comprises a braided wire belt and two fixing parts, and the two fixing parts are connected through the braided wire belt; the fixing parts in one fixing assembly and the fixing parts in the other fixing assembly are arranged in a one-to-one correspondence mode, and the corresponding fixing parts are connected through the fixing nails; the two fixing assemblies are used for being arranged on the two sides of the tendon fracture position respectively, the fixing nails are used for penetrating through the tendon, the two ends of each fixing nail are connected with the two corresponding fixing parts respectively, and the braided wire belts are used for corresponding to the tendon fracture position. The auxiliary fixing device can perform auxiliary fixing on a fracture part after tendon suture, effectively prevents secondary fracture, and promotes functional recovery of a patient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tendon repair, in particular to a tendon rupture auxiliary fixing device. BACKGROUND

[0002] Tendon is a fibrous cord of connective tissue that attaches muscle to bone or other structures, playing a key role in transmitting muscle contraction force and enabling movement. When tendon rupture occurs due to trauma or overuse, its structural integrity is damaged, and timely repair is needed to avoid dysfunction. Currently, tendon rupture suture surgery generally uses various suture lines, such as nylon lines or absorbable suture lines, through specific suture techniques, such as the modified Kessler method or the Bunnell method, to firmly connect the rupture ends and promote healing. However, after the tendon rupture ends are sutured, the rupture connection is prone to secondary rupture due to external stress during the rehabilitation process, resulting in repair failure. In view of this, we propose a tendon rupture auxiliary fixing device to solve the above-mentioned problem of secondary rupture. SUMMARY

[0003] The purpose of the present application is to provide a tendon rupture auxiliary fixing device to solve the above-mentioned problems of the prior art, which can assist in fixing the rupture site after tendon suture, effectively prevent secondary rupture, and promote functional recovery of patients.

[0004] To achieve the above-mentioned purpose, the present application provides the following scheme: The present application provides a tendon rupture auxiliary fixing device, which comprises a fixing nail and two fixing assemblies. The fixing assembly comprises a woven line belt and two fixing parts, and the two fixing parts are connected by the woven line belt. The fixing parts in one fixing assembly are respectively arranged one by one corresponding to the fixing parts in the other fixing assembly, and the corresponding fixing parts are connected by the fixing nail. The two fixing assemblies are used to be arranged on both sides of the tendon rupture site, the fixing nail is used to penetrate the tendon and connect two corresponding fixing parts at both ends, and the woven line belt is used to correspond to the tendon rupture site.

[0005] In an embodiment, the fixing part comprises a crossbar and two connecting arms arranged on the same side of the crossbar, the connecting arms comprise a first connecting arm and a second connecting arm rotatably connected by a connecting sleeve, one end of the first connecting arm is rotatably connected to one end of the crossbar by a connecting sleeve, the other end of the first connecting arm is rotatably connected to the other end of the crossbar by a connecting sleeve, and the two second connecting arms are rotatably connected by a connecting sleeve at a position away from the first connecting arm; the connecting sleeves of the two fixing parts are provided with the fixing nails; and the two crossbars of the two fixing parts are connected by the braided wire.

[0006] In an embodiment, the second connecting arm comprises a middle arm segment and two end arm segments, and the two end arm segments are respectively slidably connected to the two ends of the middle arm segment; and the middle arm segments of the two second connecting arms of the fixing part are rotatably connected by the connecting sleeves.

[0007] In an embodiment, a sliding groove is arranged on the end arm segment, the middle arm segment is slidably arranged in the sliding groove, a plurality of positioning holes are arranged on the two sides of the sliding groove along the length direction, the positioning holes on the two sides are arranged one by one in correspondence, and a positioning column is fixed to the two sides of the middle arm segment, and the positioning column can be elastically clamped into any two corresponding positioning holes.

[0008] In an embodiment, a limiting baffle is fixedly arranged at the opening of the sliding groove, and used for blocking the middle arm segment from being taken out of the opening of the sliding groove.

[0009] In an embodiment, for the connecting sleeve connecting the first connecting arm and the second connecting arm, a plurality of fixing holes are arranged on the outer side of the first connecting arm and the second connecting arm around the axis of the connecting sleeve; for the connecting sleeve connecting the first connecting arm and the crossbar, a plurality of fixing holes are arranged on the outer side of the first connecting arm and the crossbar around the axis of the connecting sleeve; for the connecting sleeve connecting the two second connecting arms, a plurality of fixing holes are arranged on the outer side of the two second connecting arms around the axis of the connecting sleeve; a fixing column is fixed on the nail cap of the fixing nail, the fixing column can be inserted into the corresponding two fixing holes on the first connecting arm and the second connecting arm, the fixing column can be inserted into the corresponding two fixing holes on the first connecting arm and the crossbar, and the fixing column can be inserted into the corresponding two fixing holes on the two second connecting arms.

[0010] In an embodiment, an elastic retaining ring is fixedly arranged on the outer circumferential surface of the end of the fixing nail away from the nail cap, and the elastic retaining ring can elastically pass through the connecting sleeve.

[0011] In an embodiment, the free end of the end arm segment of the second connecting arm away from the first connecting arm is provided with a peg connecting hole, and a connecting peg is arranged in each of the two corresponding peg connecting holes in the two fixing parts; the end arm segment outside the peg connecting hole is provided with a plurality of fixing holes uniformly distributed around the axis of the peg connecting hole, and a fixing column is fixed on the peg cap of the peg, and the fixing column can be inserted into the fixing hole on the end arm segment.

[0012] In an embodiment, the peg is provided with an elastic retaining ring fixed on the outer peripheral surface of the end away from the peg cap, and the elastic retaining ring can elastically pass through the peg connecting hole.

[0013] In an embodiment, the connecting sleeve comprises a connecting sleeve body and an everted edge fixed at both ends of the connecting sleeve body.

[0014] The present application has the following technical effects relative to the prior art: The present application provides a tendon rupture auxiliary fixing device, which can assist in fixing the tendon rupture site by cooperating the peg with the two fixing assemblies, and can transmit the pulling force on the tendon rupture site to the peg through the braided wire belt and then to the tendon, so as to provide a pulling force to prevent the tendon rupture site from separating, thereby effectively preventing secondary rupture and promoting functional recovery of the patient. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0016] Figure 1 FIG. 1 is a structural schematic diagram of a tendon rupture auxiliary fixing device in an embodiment of the present application; Figure 2 FIG. 2 is a connection structure schematic diagram of the upper fixing assembly and the peg in an embodiment of the present application; Figure 3 FIG. 3 is a connection structure schematic diagram of one fixing part and the peg in an embodiment of the present application; Figure 4 FIG. 4 is an exploded view of the fixing part in an embodiment of the present application; Figure 5 FIG. 5 is a structural schematic diagram of a cross rod in an embodiment of the present application; Figure 6 FIG. 6 is a structural schematic diagram of a first connecting arm in an embodiment of the present application; Figure 7 FIG. 7 is a structural schematic diagram of a second connecting arm in an embodiment of the present application; Figure 8 For Figure 7 The enlarged structural schematic view of the middle A part; Figure 9 The structural schematic view of the fixed nail in the embodiment of the application; Figure 10 The structural schematic view of the connecting sleeve in the embodiment of the application.

[0017] In the figure: 1-fixed nail, 2-fixed assembly, 3-woven wire belt, 4-fixed part, 5-crossbar, 6-connecting arm, 7-connecting sleeve, 8-first connecting arm, 9-second connecting arm, 10-middle arm segment, 11-end arm segment, 12-sliding groove, 13-positioning hole, 14-positioning column, 15-limiting baffle, 16-fixing hole, 17-nail cap, 18-fixing column, 19-elastic baffle ring, 20-fixed nail connecting hole, 21-connecting sleeve main body, 22-flanging. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0019] The object of the application is to provide a tendon rupture auxiliary fixing device to solve the problems in the prior art, which can implement auxiliary fixing on the rupture site after tendon suture, effectively prevent secondary rupture, and promote patient functional recovery.

[0020] In order to make the above object, characteristics and advantages of the application more apparent, the application will be further described in detail below with reference to the drawings and specific embodiments.

[0021] As Figures 1-10 shown, the embodiment provides a tendon rupture auxiliary fixing device, which comprises a fixed nail 1 and two fixed assemblies 2, the fixed assembly 2 comprises a woven wire belt 3 and two fixed parts 4, the two fixed parts 4 are connected through the woven wire belt 3; the fixed parts 4 in one fixed assembly 2 are respectively arranged one by one with the fixed parts 4 in the other fixed assembly 2, and the corresponding fixed parts 4 are connected through the fixed nail 1; the two fixed assemblies 2 are used for being arranged on the two sides of the tendon rupture site respectively, the fixed nail 1 is used for penetrating the tendon, and the two ends are connected with the two corresponding fixed parts 4 respectively, and the woven wire belt 3 is used for corresponding to the tendon rupture site.

[0022] By using fixation pin 1 in conjunction with two fixation components 2, the fixation of the tendon rupture site can be assisted. The traction force on the tendon rupture site is transmitted to the fixation pin 1 and then to the tendon through the braided suture 3, providing a pulling force to prevent the tendon from separating at the rupture site, thereby effectively preventing secondary rupture and promoting the patient's functional recovery.

[0023] In this embodiment, the fixing part 4 includes a crossbar 5 and two connecting arms 6. The two connecting arms 6 are disposed on the same side of the crossbar 5. The connecting arms 6 include a first connecting arm 8 and a second connecting arm 9, one end of which is rotatably connected to a connecting sleeve 7. The other end of one first connecting arm 8 is rotatably connected to one end of the crossbar 5 through the connecting sleeve 7. The other end of the other first connecting arm 8 is rotatably connected to the other end of the crossbar 5 through the connecting sleeve 7. The two second connecting arms 9 are rotatably connected through the connecting sleeve 7 at the part away from the first connecting arm 8. A connecting fixing nail 1 is inserted through the two corresponding connecting sleeves 7 in the two fixing parts 4. The two crossbars 5 of the two fixing parts 4 are connected by a braided cable 3.

[0024] In this embodiment, the second connecting arm 9 includes a middle arm segment 10 and two end arm segments 11, which are slidably connected to the two ends of the middle arm segment 10. The middle arm segments 10 of the two second connecting arms 9 in the fixing part 4 are rotatably connected by a connecting sleeve 7. By setting the slidably connected middle arm segment 10 and two end arm segments 11, the angle between the first connecting arm 8 and the second connecting arm 9 can be adjusted, and the length of the fixing part 4 can also be adjusted so that the fixing part 4 can adapt to the tendon shape for better auxiliary fixation.

[0025] In this embodiment, the end arm segment 11 is provided with a sliding groove 12, and the middle arm segment 10 is slidably disposed in the sliding groove 12. Multiple positioning holes 13 are provided along the length direction on both sides of the sliding groove 12, with each positioning hole 13 corresponding to the previous one. Positioning posts 14 are fixed on both sides of the middle arm segment 10, and the positioning posts 14 can be elastically engaged with any two corresponding positioning holes 13. The length of both ends of the second connecting arm 9 can be adjusted by engaging the positioning posts 14 with different positioning holes 13. In use, the angle between the first connecting arm 8 and the second connecting arm 9 can be changed to adjust the length of the second connecting arm 9 to adapt to the tendon shape, so that each fixing pin 1 can penetrate the tendon for auxiliary fixation. The middle arm segment 10 has triangular notches 23 on both sides at its end. When the positioning post 14 is pressed inward, the triangular notches 23 allow the positioning post 14 to retract inward and disengage from the positioning hole 13. After releasing the pressure on the positioning post 14, the positioning post 14 returns to its original position and can then be engaged with the positioning hole 13. Alternatively, the positioning post 14 can be set as an elastic post, which moves in and out of the positioning hole 13 through its own elastic deformation.

[0026] In this embodiment, the slot of the chute 12 is fixedly provided with a limiting baffle 15 for blocking the middle arm segment 10 from being pulled out of the slot of the chute 12, so that the middle arm segment 10 can be stably moved in the chute 12.

[0027] In this embodiment, for the connecting sleeve 7 connecting the first connecting arm 8 and the second connecting arm 9, a plurality of fixing holes 16 are uniformly distributed around the axis of the connecting sleeve 7 on the outer side of the first connecting arm 8 and the second connecting arm 9; for the connecting sleeve 7 connecting the first connecting arm 8 and the crossbar 5, a plurality of fixing holes 16 are uniformly distributed around the axis of the connecting sleeve 7 on the outer side of the first connecting arm 8 and the crossbar 5; for the connecting sleeve 7 connecting the two second connecting arms 9, a plurality of fixing holes 16 are uniformly distributed around the axis of the connecting sleeve 7 on the outer side of the two second connecting arms 9; the peg cap 17 of the fixing peg 1 is fixedly provided with a fixing column 18, the fixing column 18 can be inserted into the corresponding two fixing holes 16 on the first connecting arm 8 and the second connecting arm 9, the fixing column 18 can be inserted into the corresponding two fixing holes 16 on the first connecting arm 8 and the crossbar 5, and the fixing column 18 can be inserted into the corresponding two fixing holes 16 on the two second connecting arms 9. When the included angle between the first connecting arm 8 and the second connecting arm 9 is adjusted in place, the fixing peg 1 is inserted through each pair of corresponding two connecting sleeves 7, and the fixing column 18 on the peg cap 17 is inserted into the corresponding two fixing holes 16 on the first connecting arm 8 and the second connecting arm 9, the corresponding two fixing holes 16 on the first connecting arm 8 and the crossbar 5, and the corresponding two fixing holes 16 on the two second connecting arms 9, thereby fixing the positions of the crossbar 5, the first connecting arm 8 and the second connecting arm 9, and fixing the position of the fixing peg 1.

[0028] In this embodiment, the outer circumferential surface of the end of the fixing peg 1 away from the peg cap 17 is fixedly provided with an elastic retaining ring 19, the elastic retaining ring 19 can elastically pass through the connecting sleeve 7, and after the fixing peg 1 passes through the connecting sleeve 7 on one fixing assembly 2, the fixing peg 1 passes through the connecting sleeve 7 on the other fixing assembly 2, the elastic retaining ring 19 and the peg cap 17 of the fixing peg 1 limit the two fixing assemblies 2 in the middle, and the two fixing assemblies 2 are connected to each other by the fixing peg 1, so that the two fixing assemblies 2 cannot be separated from the fixing peg 1.

[0029] In this embodiment, the free end of the end arm segment 11 of the second connecting arm 9 away from the first connecting arm 8 is provided with a fixing peg connecting hole 20, and the corresponding two fixing peg connecting holes 20 in the two fixing parts 4 are both provided with a connecting fixing peg 1; the end arm segment 11 outside the fixing peg connecting hole 20 is provided with a plurality of fixing holes 16 uniformly distributed around the axis of the fixing peg connecting hole 20, and the fixing column 18 on the peg cap 17 of the fixing peg 1 can be inserted into the fixing holes 16 on the end arm segment 11, so that the circumferential freedom of the fixing peg 1 is constrained.

[0030] In this embodiment, the elastic retaining ring 19 on the fixing nail 1 can elastically pass through the fixing nail connecting hole 20, and the end arm segment 11 of the upper and lower two fixing assemblies 2 is limited in the middle by the elastic retaining ring 19 and the nail cap 17 of the fixing nail 1, so that the stability of the structure is improved, and the fixing nail 1 and the end arm segment 11 at this position can be prevented from being separated.

[0031] In this embodiment, the connecting sleeve 7 includes a connecting sleeve body 21 and an outward turning edge 22 fixed at both ends of the connecting sleeve body 21. The first connecting arm 8 and the second connecting arm 9 are limited in the middle by the outward turning edge 22, the first connecting arm 8 and the horizontal rod 5 are limited in the middle, and the two middle arm segments 10 are limited in the middle, so that the upper and lower looseness of the structure does not occur, and the structural stability of the fixing part 4 is ensured.

[0032] In use, the damaged tendon is first sutured. After the suturing is completed, the angle between the first connecting arm 8 and the second connecting arm 9 of the fixing part 4 and the length of the second connecting arm 9 are first adjusted to adapt to the tendon shape, then one of the fixing assemblies 2 is placed above the tendon, and the area of the woven wire belt 3 is accurately aligned with the tendon fracture. The doctor respectively passes the fixing nails 1 through the connecting sleeves 7 in the fixing assembly 2 above, and the fixing nail connecting holes 20 on the end arm segment 11 are also provided with the fixing nails 1, then the fixing nails 1 are penetrated through the tendon, and then the other fixing assembly 2 is placed below the tendon, and the area of the woven wire belt 3 is also accurately overlapped with the fracture area. Finally, the elastic retaining ring 19 at the bottom of each fixing nail 1 is respectively passed through the corresponding connecting sleeve 7 on the fixing assembly 2 below, the fixing nail 1 in the fixing nail connecting hole 20 on the end arm segment 11 is passed through the fixing nail connecting hole 20 on the end arm segment 11 below, and the fixing column 18 on the nail cap 17 of each fixing nail 1 is inserted into the fixing hole 16 at the corresponding position, so that the upper and lower two fixing assemblies 2 are connected by the fixing nails 1, the tendon is uniformly distributed by the fixing nails 1, the overall tendon is uniformly distributed, and the force is uniformly distributed.

[0033] The tendon fracture auxiliary fixing device provided in the embodiment can be used for auxiliary fixing of the fracture part after the tendon is sutured, and can effectively prevent secondary fracture. By means of the cooperation of the connecting arm with adjustable angle and the fixing nail, the device is suitable for various tendon fracture patients, is convenient to operate and has high practicability. The device can significantly improve the operation quality, promote the functional recovery of the patient, reduce the postoperative complications, reduce the medical cost, and then improve the life quality of the patient.

[0034] In the present application, specific examples are applied to illustrate the principles and implementation modes of the present application. The above examples are only used to help understand the method and core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation mode and application range can be changed. In view of the above, the content of the specification should not be understood as the limitation of the present application.

Claims

1. A tendon rupture assisted fixation device, characterized by: The application relates to a fixing nail and two fixing assemblies, the fixing assembly comprising a woven wire belt and two fixing parts connected by the woven wire belt; the fixing parts in one fixing assembly are arranged one by one with the fixing parts in the other fixing assembly, and the corresponding fixing parts are connected by the fixing nail; the two fixing assemblies are arranged on the two sides of a tendon rupture respectively, the fixing nail is arranged through the tendon and connected with the two corresponding fixing parts at two ends, and the woven wire belt is arranged corresponding to the tendon rupture.

2. The tendon rupture assisted fixation device of claim 1, wherein: The fixing part comprises a crossbar and two connecting arms arranged on the same side of the crossbar, the connecting arm comprises a first connecting arm and a second connecting arm rotatably connected by a connecting sleeve at one end, the other end of one first connecting arm is rotatably connected with one end of the crossbar by a connecting sleeve, the other end of the other first connecting arm is rotatably connected with the other end of the crossbar by a connecting sleeve, and the two second connecting arms are rotatably connected by a connecting sleeve at a position away from the first connecting arm; the connecting sleeves in the corresponding two connecting arms of the two fixing parts are connected with the fixing nail; and the two crossbars of the two fixing parts are connected by the woven wire belt.

3. The tendon rupture assist fixation device of claim 2, wherein: The second connecting arm comprises a middle arm segment and two end arm segments, and the two end arm segments are slidably connected at both ends of the middle arm segment; and the middle arm segments of the two second connecting arms in the fixing part are rotatably connected by the connecting sleeve.

4. The tendon rupture assist fixation device of claim 3, wherein: A sliding groove is arranged on the end arm segment, the middle arm segment is slidably arranged in the sliding groove, a plurality of positioning holes are arranged on both sides of the sliding groove along the length direction, the positioning holes on both sides are arranged one by one, a positioning column is fixed on both sides of the middle arm segment, and the positioning column can be elastically clamped into any two corresponding positioning holes.

5. The tendon rupture assist fixation device of claim 4, wherein: A limiting baffle is fixedly arranged on the slot of the sliding groove and used for blocking the middle arm segment from being taken out of the slot of the sliding groove.

6. The tendon rupture assist fixation device of claim 2, wherein: For the connecting sleeve connecting the first connecting arm and the second connecting arm, a plurality of fixing holes are uniformly distributed around the axis of the connecting sleeve on the outer sides of the first connecting arm and the second connecting arm; for the connecting sleeve connecting the first connecting arm and the crossbar, a plurality of fixing holes are uniformly distributed around the axis of the connecting sleeve on the outer sides of the first connecting arm and the crossbar; for the connecting sleeve connecting the two second connecting arms, a plurality of fixing holes are uniformly distributed around the axis of the connecting sleeve on the outer sides of the two second connecting arms; a fixing column is fixed on the nail cap of the fixing nail, the fixing column can be inserted into the corresponding two fixing holes on the first connecting arm and the second connecting arm, the fixing column can be inserted into the corresponding two fixing holes on the first connecting arm and the crossbar, and the fixing column can be inserted into the corresponding two fixing holes on the two second connecting arms.

7. The tendon rupture assist fixation device of claim 2, wherein: An elastic blocking ring is fixedly arranged on the outer circumferential surface of the end of the fixing nail away from the nail cap, and the elastic blocking ring can elastically pass through the connecting sleeve.

8. The tendon rupture assist fixation device of claim 3, wherein: The free end of the end arm segment of the second connecting arm away from the first connecting arm is provided with a fixed nail connecting hole, and two fixed nails are connected in the corresponding two fixed nail connecting holes in the two fixed parts; the end arm segment outside the fixed nail connecting hole is provided with a plurality of fixed holes uniformly distributed around the axis of the fixed nail connecting hole, a fixed column is fixed on the nail cap of the fixed nail, and the fixed column can be inserted into the fixed hole on the end arm segment.

9. The tendon rupture assist fixation device of claim 8, wherein: An elastic retaining ring is fixedly arranged on the outer circumferential surface of one end of the fixed nail away from the nail cap, and the elastic retaining ring can elastically pass through the fixed nail connecting hole.

10. The tendon rupture assist fixation device of claim 2, wherein: The connecting sleeve comprises a connecting sleeve main body and an everted edge fixed to both ends of the connecting sleeve main body.

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