Tendon suturing assist device for surgical operation

Abstract

The invention relates to the technical field of medical instruments, in particular to a surgical tendon suture assist device which comprises a base and a placement table, a plurality of groups of symmetrical propelling mechanisms are arranged on the base, each propelling mechanism is connected with a clamp, and each clamp is connected with a clamping surface. The device is ingenious in structure and convenient to use, can adapt to tendons with different curvatures through the clamp and the clamping face which can be flexibly rotated and adjusted, ensures uniform distribution of clamping force, avoids tissue damage possibly caused by too large local pressure, and is high in safety, high in universality and worthy of popularization.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a tendon suturing assist device for surgical operation. BACKGROUND

[0002] Tendon suturing operation is a common operation in surgery, orthopedics and other operations, and the suturing quality directly affects the healing and functional recovery of the tendon after operation. At present, the commonly used tendon suturing methods in clinical practice mainly include manual suturing and the use of traditional suturing instruments. Manual suturing requires the surgeon to operate based on experience, and if the tendon is not well matched, it will greatly affect the healing effect. The existing suturing instruments are mostly of general design, lack of adaptability to the special structure of the tendon, and are easy to cause secondary damage to the tendon during operation, especially for small diameter tendons or multiple beam suturing, the existing instruments are difficult to achieve precise control and uniform tension distribution, in addition, the operation steps of traditional suturing instruments are complicated, and the instruments need to be frequently replaced, which prolongs the operation time and increases the risk of infection of the patient. The root cause of these problems lies in the lack of targeted design of the existing instruments for the diameter and curvature of different tendons. In view of the problems of complex operation, inability to adapt to tendons of different diameters and curvatures, and easy to cause tissue damage in the prior art, the present application provides a tendon suturing assist device for surgical operation. SUMMARY

[0003] In order to solve the problems of complex operation, inability to adapt to tendons of different diameters and curvatures, and easy to cause tissue damage in the prior art, the present application provides a tendon suturing assist device for surgical operation with strong applicability.

[0004] The present application provides the following solutions to solve the above-mentioned problems: a tendon suturing assist device for surgical operation, comprising a base and a placement table, the base is provided with a propulsion mechanism, the propulsion mechanism and the base are connected through a slide rail, the propulsion mechanism is provided with multiple groups and is symmetrically arranged on both sides of the placement table, the propulsion mechanism is connected with a movable clamp of V-shaped on the side facing the placement table, and the opening of the clamp is further connected with a clamping surface. The clamp comprises a fixed clamp arm and a movable clamp arm connected with the fixed clamp arm through a rotating shaft, and the clamping surface comprises an elastic contact surface, a fixed pressing rod and a movable pressing rod, the fixed pressing rod and the movable pressing rod are respectively connected with the fixed clamp arm and the movable clamp arm through a rotatable ball shaft structure.

[0005] As a preferred scheme of the present application, the ball shaft structure comprises a ball shaft fixed on the clamping surface and a ball shell fixed on the end of the clamp, the ball shaft is embedded in the ball shell, and the ball shaft can rotate flexibly with the ball shell, the ball shell is a split structure, and an outer thread is arranged on the periphery of the ball shell, and a tightening screw cap is further arranged on the fixed clamping arm and the movable clamping arm, the tightening screw cap can be sleeved on the periphery of the ball shell, and the inner thread of the tightening screw cap can be matched with the outer thread of the ball shell.

[0006] As a preferred scheme of the present application, the fixed clamping arm is horizontally connected to the longitudinal driving device, the middle part of the movable clamping arm is provided with a sliding groove, the middle part of the fixed clamping arm is connected to an adjusting rod through a rotating shaft, and the end of the adjusting rod can be embedded and fixed in the sliding groove and can move forward and backward in the sliding groove.

[0007] As a preferred scheme of the present application, the advancing mechanism comprises a transverse driving device and a longitudinal driving device, the transverse driving device can be matched with the sliding rail to realize left-right movement on the base, a support is arranged on the transverse driving device, and the longitudinal driving device is sleeved on the support and can move up and down on the support.

[0008] As a preferred scheme of the present application, the fixed pressing rod is fixedly connected with the elastic contact surface, the movable pressing rod is arranged in the sliding track arranged on the two sides of the elastic contact surface, and buckles are further connected to the two ends of the movable pressing rod through rotating shafts, and the buckles can be buckled on the outer side of the sliding track.

[0009] As a preferred scheme of the present application, a limiting ring is sleeved on the movable clamping arm, the limiting ring can move forward and backward on the movable clamping arm, and a knob penetrating through the limiting ring is arranged on the limiting ring.

[0010] As a preferred scheme of the present application, the placement table is a long strip-shaped convex structure, and the top of the placement table is a concave surface.

[0011] As a preferred scheme of the present application, the material of the elastic contact surface is a shape memory alloy such as nickel-titanium alloy.

[0012] As a preferred scheme of the present application, the transverse driving device and the longitudinal driving device are both high-precision low-speed motors.

[0013] The present application has the following beneficial effects: 1、The tendon suture assist device for surgical operation can adapt to tendons with different curvatures through the clamp and the clamping surface which can rotate and adjust flexibly, ensures uniform distribution of clamping force, avoids tissue damage caused by excessive local pressure, and has strong universality.

[0014] 2. The tendon suturing aid for surgery has the pushing mechanism, high-precision low-speed motor is used to realize accurate control of the clamp position, so that the size and shape of different tendons can be adapted, tissue damage caused by the pushing mechanism can be avoided, the safety is high, and the pushing mechanism is worth promoting. BRIEF DESCRIPTION OF DRAWINGS

[0015] The application will be described by examples and with reference to the accompanying drawings, in which: Figure 1 is a structural schematic diagram of an embodiment of the application; Figure 2 is a structural schematic diagram of another angle of an embodiment of the application; Figure 3 is a side view structural schematic diagram of an embodiment of the application; Figure 4 is an enlarged view of A in the embodiment of the application; Figure 1 Figure 5 is an enlarged view of B in the embodiment of the application; Figure 1 Figure 6 is an enlarged view of C in the embodiment of the application; Figure 4 Figure 7 is an enlarged view of D in the embodiment of the application; Figure 2 Figure 8 is a sectional view of the ball shaft structure in the embodiment of the application; Figure 9 is a movement structure schematic diagram of the clamp in the embodiment of the application.

[0016] BRIEF DESCRIPTION OF DRAWINGS 1, base; 2, placing table; 3, pushing mechanism; 301, transverse driving device; 302, longitudinal driving device; 303, support column; 4, slide rail; 5, clamp; 501, fixed clamp arm; 502, movable clamp arm; 503, adjusting rod; 6, clamping surface; 601, elastic contact surface; 602, fixed pressing rod; 603, movable pressing rod; 604, buckle; 7, limiting ring; 8, knob; 9, ball shaft structure; 901, ball shaft; 902, ball shell; 903, tightening screw cover. DETAILED DESCRIPTION

[0017] All features disclosed in this specification, or all steps of any methods or processes disclosed, may be combined in any combination, except combinations where at least some of the features and / or steps are mutually exclusive.

[0018] ​​​​Any feature in the foregoing specification that can be added to any claim is meant to be in the scope of that claim, to the extent allowed by the application's patent office. Likewise, any addition of one feature to any existing claim is also meant to be within the scope of that claim, to the extent allowed by the application's patent office. Likewise, any feature in the foregoing specification that can be added to any claim is meant to be in the scope of that claim, to the extent allowed by the application's patent office. Likewise, any addition of one feature to any existing claim is also meant to be within the scope of that claim, to the extent allowed by the application's patent office.

[0019] Referring to Figure 1 Figure 9 A surgical tendon suture aid, comprising a base 1 and a placement table 2, the base 1 is provided with a plurality of sets of advancing mechanisms 3, the advancing mechanisms 3 are connected to the base 1 through a slide rail 4, the advancing mechanisms 3 are symmetrically arranged on both sides of the placement table 2, and each of the advancing mechanisms 3 is connected with a movable V-shaped clamp 5 on the side facing the placement table 2, and a clamping surface 6 is further connected to the opening of the clamp 5. The clamp 5 comprises a fixed clamp arm 501 and a movable clamp arm 502 connected to the fixed clamp arm 501 through a rotating shaft, and the clamping surface 6 comprises an elastic contact surface 601, a fixed pressing rod 602 and a movable pressing rod 603, the fixed pressing rod 602 and the movable pressing rod 603 are respectively connected to the fixed clamp arm 501 and the movable clamp arm 502 through a rotatable ball shaft structure 9.

[0020] In the embodiment, the ball shaft structure 9 comprises a ball shaft 901 fixed on the clamping surface 6 and a ball shell 902 fixed on the end of the clamp 5, the ball shaft 901 is embedded in the ball shell 902, and the ball shaft 901 can be matched with the ball shell 902 to realize flexible rotation, the ball shell 902 has a structure that is split in half, and an outer periphery of the ball shell 902 is provided with external threads, and the fixed clamp arm 501 and the movable clamp arm 502 are further provided with a tightening screw cap 903, the tightening screw cap 903 can be sleeved on the outer periphery of the ball shell 902, and the internal threads of the tightening screw cap 903 can be matched with the external threads of the ball shell 902.

[0021] Specifically, a gap is left between the ball shell 902 and the ball shaft 901 for the rotation of the ball shaft 901, the split ball shell 902 itself has an outward angle, when the tightening screw cap 903 is not tightened, the ball shaft 901 inside can be flexibly adjusted, and the rotation of the ball shaft 901 is not affected, by gradually tightening the tightening screw cap 903, the split ball shell 902 is pressed tightly inside, which can fix the ball shaft 901, so as to realize flexible change and fixation of the angle and curvature of the clamping surface 6.

[0022] In the embodiment, the fixed clamp arm 501 is horizontally connected to the longitudinal driving device 302, the middle part of the movable clamp arm 502 is provided with a sliding groove, the middle part of the fixed clamp arm 501 is connected to an adjusting rod 503 through a rotating shaft, the end of the adjusting rod 503 can be embedded and fixed in the sliding groove, and can move forward and backward in the sliding groove.

[0023] Specifically, as Figure 9 ​As shown, when the end of the adjusting rod 503 moves back and forth in the recess on the movable clamping arm 502, the movable clamping arm 502 is driven to perform opening and closing movement relative to the fixed clamping arm 501, thereby driving the movable pressing rod 603 to cooperate with tendons of different diameters.

[0024] In the embodiment, the advancing mechanism 3 comprises a transverse driving device 301 and a longitudinal driving device 302, the transverse driving device 301 is capable of cooperating with the slide rail 4 to realize left and right movement on the base 1, and the transverse driving device 301 is provided with a support column 303, and the longitudinal driving device 302 is sleeved on the support column 303 and is capable of realizing up and down movement on the support column 303.

[0025] Specifically, the transverse advancing mechanism 3 is used for accurate adjustment in the transverse direction, the longitudinal driving device 302 is used for accurate adjustment in the longitudinal direction, and the same group of transverse driving device 301 and longitudinal driving device 302 are controlled by the same control switch to realize synchronous starting and adjustment.

[0026] In the embodiment, the fixed pressing rod 602 is fixedly connected with the elastic contact surface 601, the movable pressing rod 603 is sleeved in the sliding track provided on the two sides of the elastic contact surface 601, and the two ends of the movable pressing rod 603 are further connected with buckles 604 through shafts, and the buckles 604 can be buckled on the outside of the sliding track.

[0027] The movable clamping arm 502 is sleeved with a limiting ring 7, the limiting ring 7 is capable of moving back and forth on the movable clamping arm 502, and the limiting ring 7 is provided with a knob 8 penetrating through the limiting ring 7.

[0028] Specifically, the limiting ring 7 is used for fixing the angle of the opening of the fixed clamp 5, when the movable clamping arm 502 reaches a specified angle, the limiting ring 7 is moved to abut against the adjusting rod 503, and the knob 8 is screwed, so that the knob 8 is pressed on the movable clamping arm 502, the function of fixing the movable clamping arm 502 is realized, the buckles 604 are used for limiting the angle and curvature of the clamping surface 6, after the elastic contact surface 601 is adjusted to the corresponding angle and curvature matched with the tendon, the buckles 604 on the two sides are buckled on the outside of the sliding track, so that the function of limiting the clamping surface 6 is realized.

[0029] In the embodiment, the placement table 2 is a long strip-shaped protruding structure, and the top thereof is a concave surface.

[0030] Specifically, the placement table 2 is used for preliminary fixation of the part of the patient to be operated, and is more convenient for the doctor to perform the operation.

[0031] In the embodiment, the material of the elastic contact surface 601 is a shape memory alloy such as nickel-titanium alloy.

[0032] In the embodiment, the transverse driving device 301 and the longitudinal driving device 302 are both high-precision low-speed motors.

[0033] Working principle: when using the application, firstly open the lateral driving devices 301 on both sides, and make them away from the placement table 2 to leave space for the operation area, then place the part to be operated on the placement table 2 for preliminary fixation, let the tendon section to be sutured be located at the center of the placement table 2, then drive the lateral driving devices 301 on both sides, drive the clamps 5 to slowly move towards the inner placement table 2, in the process, by synchronously adjusting the longitudinal driving devices 302 to drive the clamps 5 to move up and down, make the fixed pressing rods 602 on both sides reach the same horizontal height as the tendon, when the fixed pressing rods 602 approach the tendon, stop the lateral driving devices 301, adjust the clamping surfaces 6, firstly move the adjusting rods 503 to change the angle between the fixed clamping arms 501 and the movable clamping arms 502, the movable clamping arms 502 drive the moving pressing rods 603 to move in the sliding groove on the back of the elastic contact surfaces 601, make the clamping surfaces 6 match the diameter of the tendon, through moving the limiting rings 7 to make the limiting rings 7 abut against the adjusting rods 503, and tighten the knobs 8 to fix the angle of the clamps 5, then finely adjust the curvature of the clamping surfaces 6, firstly through adjusting and rotating the ball shafts 901 in the ball shaft structures 9, drive the elastic contact surfaces 601 to reach an angle more suitable for the surface of the tendon, through tightening the screw caps 903 to compress the ball shells 902 to fix the moving pressing rods 603, then buckle the buckles 604 on both sides of the moving pressing rods 603 on the outside of the sliding rails, so as to fix the angle and curvature of the clamping surfaces 6 at this time, finally start the lateral driving devices 301, press the clamping surfaces 6 on both sides on the tendon at the same time, slowly press and observe the compression condition, when the clamping surfaces 6 reach the ideal fixing effect and do not injure the tendon, stop the lateral driving devices 301, at this time, the broken tendons on both sides can be fixed in the state of not being stretched; when the operation is finished, loosen the limiting rings 7, open the clamps 5, and drive the elastic contact surfaces 601 to leave the surface of the tendon by starting the lateral driving devices 301.

[0034] The application is not limited to the foregoing specific embodiments. The application extends to any novel one, or any novel combination, of the characteristics disclosed in this specification and to any novel method or process disclosed, or any novel combination of steps of any novel method or process.

Claims

1. A surgical tendon suturing aid comprising a base (1) and a resting platform (2), characterized in that, The base (1) is provided with a propulsion mechanism (3), the propulsion mechanism (3) and the base (1) are connected through a slide rail (4), the propulsion mechanism (3) is provided with multiple groups, and is symmetrically arranged on the two sides of the placing table (2), the side of the propulsion mechanism (3) towards the placing table (2) is connected with a movable v-shaped clamp (5), and the opening of the clamp (5) is also connected with a clamping surface (6). The clamp (5) comprises a fixed clamping arm (501) and a movable clamping arm (502) connected with the rotating shaft of the fixed clamping arm (501), the clamping surface (6) comprises an elastic contact surface (601), a fixed pressing rod (602) and a movable pressing rod (603), and the fixed pressing rod (602) and the movable pressing rod (603) are respectively connected with the fixed clamping arm (501) and the movable clamping arm (502) through a rotatable ball shaft structure (9).

2. A surgical tendon suturing aid as claimed in claim 1, wherein, The ball shaft structure (9) comprises a ball shaft (901) fixed on the clamping surface (6) and a spherical shell (902) fixed on the end of the clamp (5), the ball shaft (901) is embedded in the spherical shell (902), and the ball shaft (901) can be flexibly rotated in cooperation with the spherical shell (902), the spherical shell (902) is a half-split structure, an outer thread is arranged on the periphery of the spherical shell (902), and a tightening screw cap (903) is further arranged on the fixed clamping arm (501) and the movable clamping arm (502), the tightening screw cap (903) can be sleeved on the periphery of the spherical shell (902), and the internal thread of the tightening screw cap (903) can cooperate with the outer thread of the spherical shell (902).

3. A surgical tendon suturing aid as claimed in claim 1, wherein, The fixed clamping arm (501) is horizontally connected to the longitudinal driving device (302), the middle part of the movable clamping arm (502) is provided with a sliding groove, the middle part of the fixed clamping arm (501) is connected with an adjusting rod (503) through a rotating shaft, and the end of the adjusting rod (503) can be embedded and fixed in the sliding groove and can move forward and backward in the sliding groove.

4. A surgical tendon suturing aid as claimed in claim 1, wherein, The propulsion mechanism (3) comprises a transverse driving device (301) and a longitudinal driving device (302), the transverse driving device (301) can cooperate with the slide rail (4) to realize left and right movement on the base (1), the transverse driving device (301) is provided with a support column (303), and the longitudinal driving device (302) is sleeved on the support column (303) and can move up and down on the support column (303).

5. A surgical tendon suturing aid as claimed in claim 1, wherein, The fixed pressing rod (602) and the elastic contact surface (601) are fixedly connected, the movable pressing rod (603) is arranged in the sliding track arranged on the two sides of the elastic contact surface (601), and the two ends of the movable pressing rod (603) are further connected with buckles (604) through rotating shafts, and the buckles (604) can be buckled on the outer side of the sliding track.

6. A surgical tendon suturing aid as claimed in claim 1, wherein, The movable clamping arm (502) is sleeved with a limiting ring (7), the limiting ring (7) can move forward and backward on the movable clamping arm (502), and a knob (8) penetrating through the limiting ring (7) is arranged on the limiting ring (7).

7. A surgical tendon suturing aid as claimed in claim 1, wherein, The placing table (2) is a long strip-shaped convex structure, and the top is a concave surface.

8. A surgical tendon suturing aid as claimed in claim 1, wherein, The material of the elastic contact surface (601) is a shape memory alloy such as nickel-titanium alloy.

9. A surgical tendon suturing aid as claimed in claim 1, wherein, The lateral driving device (301) and the longitudinal driving device (302) are both high-precision low-speed motors.

Images