Round closed tendon taking device

Abstract

The utility model discloses a round closed tendon taking device, which belongs to the technical field of medical instruments and equipment, and comprises a round tendon taking device which is used for taking autologous quadriceps femoris tendon as a cylindrical ligament graft in a knee joint cruciate ligament reconstruction operation, and the round tendon taking device comprises an operating handle, a connecting rod and a tendon taking head, the tendon taking head is formed by sleeving a tendon graft with a cutting part, the head end of the tendon taking head is obliquely sharp, and a tendon taking hole is formed in the head end of the tendon taking head; the device is specially designed for conveniently cutting and cutting a cylindrical cruciate ligament transplantation plant from an autologous quadriceps femoris tendon, in the taking-out process, a medical worker holds the operating handle by hand to sleeve the tendon taking hole in the head end of the tendon taking head at the head end of the tendon taking head, and the tendon is cut and separated through the inclined sharp head end of the tendon taking head, so that the medical worker can take out the tendon conveniently and quickly. The whole taking-out process is convenient and labor-saving to operate, the edge of the taken-out graft is flat and not coarse, the size of the graft can be accurately determined according to different requirements, and the graft taking-out device is simple in structure and convenient to widely use.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a circular closed-end tendon remover. Background Art

[0002] During sports injuries or violent car accidents, the knee joint experiences severe twisting, generating enormous shear and tensile forces, which can lead to single or multiple ligament injuries, such as those of the anterior and posterior cruciate ligaments (ACLs) and the medial and lateral collateral ligaments. ACL injuries are very common. Because the ACL is a crucial structure for maintaining knee stability and normal function, and lacks adequate self-repair capabilities after injury, severe damage can lead to loss of biomechanical properties or even complete rupture, necessitating surgical restoration of continuity and mechanical properties. Currently, the most commonly used ACL reconstruction technique is to use a tendon graft from elsewhere in the patient's body as a graft. Previously, autologous hamstring tendons were often used as ligament grafts for ACL reconstruction, with good results. However, recent studies have shown that ACL reconstruction using hamstring tendons is associated with significantly lower knee stability and resistance to rotational forces than reconstruction using quadriceps tendons. Currently, there are few tendon harvesters for the quadriceps tendon on the market. Existing tendon harvesters are laborious and cumbersome, resulting in rough edges and an inability to precisely define the graft size. These deficiencies can severely impact the efficacy of anterior cruciate ligament reconstruction surgery. To address these shortcomings, we designed a circular closed-end tendon harvester. Utility Model Content

[0003] The purpose of the present invention is to provide a circular closed-end tendon remover to address the deficiencies of the prior art and to solve the above-mentioned technical problems.

[0004] The embodiment of the utility model adopts the following technical solution: it includes a circular tendon harvester used for harvesting part of the quadriceps femoris tendon from the body as a cylindrical graft in knee cruciate ligament reconstruction surgery, the circular tendon harvester includes an operating handle, a connecting rod and a tendon harvesting head, the operating handle is connected to the connecting rod, the tendon harvesting head is connected to the connecting rod, the tendon harvesting head is provided with a cutting component for the tendon graft, the head end of the tendon harvesting head is inclined and sharp, the head end of the tendon harvesting head is provided with a tendon harvesting hole, and the tendon harvesting hole is circular;

[0005] This device is specially designed for conveniently cutting and intercepting cylindrical cruciate ligament grafts from autologous quadriceps tendons. During the removal process, medical staff hold the operating handle to set the tendon hole at the head end of the tendon head on the head end of the tendon, and cut and separate the tendon through the inclined and sharp head end of the tendon head. The entire removal process is convenient and effortless, the edges of the removed graft are smooth and not rough, the graft size can be accurately determined according to different needs, and the structure is simple and convenient for wide use.

[0006] Furthermore, the operating handle is provided with anti-slip threads, and the operating handle is cylindrical in shape.

[0007] Furthermore, the outer surface of the connecting rod is provided with scale values.

[0008] Furthermore, the position of the first end of the tendon head is taken as the reference starting scale, the maximum scale value of the outer surface of the connecting rod is 9 cm, and the length of the connecting rod is 10 cm.

[0009] Furthermore, the head end of the tendon removal head has an inclination angle of 15°.

[0010] Furthermore, the diameter of the head end of the connecting rod is smaller than the width of the tail end of the tendon removal head, and the width of the tendon removal head gradually decreases from the head end to the tail end.

[0011] Furthermore, both sides of the middle portion of the tendon removal head toward the end are arc-shaped.

[0012] Furthermore, the diameter of the circular closed opening at the first end of the tendon head is selected into two specifications: 8 mm and 9 mm.

[0013] At least one of the above technical solutions adopted in the embodiment of the present utility model can achieve the following beneficial effects:

[0014] When removing a tendon graft from a patient, the medical staff first holds the circular tendon remover and grasps it at the anti-slip groove position on the operating handle. Then, the head end of the tendon that has been separated and exposed to the outside is placed through the head end of the tendon removal head. The medical staff then pushes the tendon removal head forward to cut the tendon graft. During the cutting process, the tendon graft can be cut to the required size according to the scale value on the connecting rod. Finally, the tendon graft that has been cut can be cut and peeled off with tools such as scissors to complete the process.

[0015] This device is specially designed for conveniently cutting and intercepting cylindrical cruciate ligament grafts from autologous quadriceps tendons. During the removal process, medical staff hold the operating handle to set the tendon hole at the head end of the tendon head on the head end of the tendon, and cut and detach the tendon through the inclined and sharp head end of the tendon head. The entire removal process is convenient and effortless, the edges of the removed graft are smooth and not rough, the graft size can be accurately determined according to different needs, and the structure is simple and convenient for wide use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model Figure 3 .

[0020] Reference numerals

[0021] A circular tendon removal device 1, an operating handle 11, an anti-slip thread 111, a connecting rod 12, a scale value 121, a tendon removal head 13, and a tendon removal hole 131. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will provide a clear and complete description of the technical solutions of the present invention in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0023] The technical solutions provided by various embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0024] The present invention provides a circular closed tendon harvester, including a circular tendon harvester 1 used to harvest part of the quadriceps femoris tendon from the body as a circular graft during knee cruciate ligament reconstruction surgery. The circular tendon harvester 1 includes an operating handle 11, a connecting rod 12, and a tendon harvesting head 13. The operating handle 11 is connected to the connecting rod 12, and the tendon harvesting head 13 is connected to the connecting rod 12. The tendon harvesting head 13 is a cutting component for the tendon graft. The head end of the tendon harvesting head 13 is inclined and sharp, and the head end of the tendon harvesting head 13 is provided with a tendon harvesting hole 131. The tendon harvesting hole 131 is circular.

[0025] This device is specially designed for the convenient removal of round tendons. During the removal process, the medical staff holds the operating handle 11 to put the tendon removal hole 131 at the head end of the tendon removal head 13 on the head end of the tendon, and cuts and separates the tendon through the inclined and sharp head end of the tendon removal head 13. The entire removal process is convenient and effortless, and the cutting size is precise. It also has a simple structure and is easy to use.

[0026] When medical staff remove the patient's tendon graft, they first hold the circular tendon remover 1 and grasp it at the anti-slip thread 111 of the operating handle 11 with their hands. Then, they put the head end of the tendon that has been separated and exposed to the outside through the head end of the tendon removal head 13, and then push the tendon removal head 13 forward to cut the tendon graft. During the cutting process, the tendon graft can be cut to the required size according to the scale value 121 on the connecting rod 12. Finally, the tendon graft that has been cut can be cut and peeled off with tools such as scissors.

[0027] In a further preferred embodiment of the present invention, the operating handle 11 is provided with an anti-slip thread 111 , and the operating handle 11 is cylindrical in shape;

[0028] Since medical staff wear gloves during surgery, there is a great risk of slipping. Therefore, the operating handle 11 is cylindrical in shape, which makes it convenient for medical staff to operate it by hand. The operating handle 11 is provided with an anti-slip thread 111, which can prevent medical staff from slipping during operation, thereby improving the quality of treatment.

[0029] In a further preferred embodiment of the present invention, the outer surface of the connecting rod 12 is provided with scale values ​​121;

[0030] The outer surface of the connecting rod 12 is provided with a scale value 121 , and when the medical staff is cutting and peeling the cut tendon graft, they can cut it to the required accurate size according to the scale value 121 .

[0031] In a further preferred embodiment of the present invention, the position of the head end of the tendon removal head 13 is a reference starting scale, the maximum value of the outer surface scale value 121 of the connecting rod 12 is 9 cm, and the length of the connecting rod 12 is 10 cm;

[0032] The maximum value of the outer surface scale value 121 of the connecting rod 12 is 9 cm and the length of the connecting rod 12 is 10 cm, so that the length of the device is not long and is within the required standard cutting size range. At the same time, the force required by medical staff when cutting tendon grafts will be reduced, which not only reduces costs but also reduces labor.

[0033] In a further preferred embodiment of the present invention, the head end of the tendon removal head 13 is inclined at an angle of 15°;

[0034] By setting the head end of the tendon removal head 13 at an inclined angle of 15°, the tendon can be cut quickly, conveniently and effortlessly after the head end of the tendon removal head 13 is placed on the end of the tendon.

[0035] In a further preferred embodiment of the present invention, the diameter of the head end of the connecting rod 12 is smaller than the width of the end of the tendon removal head 13, and the width of the tendon removal head 13 gradually decreases from the head end to the end;

[0036] Because the diameter of the front end of the connecting rod 12 is smaller than the width of the end of the tendon removal head 13, it is convenient for medical staff to perform the picking operation, and when the tendon is cut and removed through the tendon removal head 13, the connecting rod 12 will not cause any obstruction to the tendon removal. The width of the tendon removal head 13 gradually decreases from the front end to the end, so that when medical staff hold the wipe handle and operate it with force, the force will be transmitted to the front end of the tendon removal head 13 to the maximum extent, thereby quickly and conveniently cutting the tendon.

[0037] In a further preferred embodiment of the present invention, the tendon removal head 13 is arranged in an arc shape from the middle to the end on both sides;

[0038] Since both sides of the middle portion of the tendon removal head 13 are arranged in an arc shape toward the end, the tendon can be easily removed after the head end of the tendon removal head 13 is sleeved on the end portion of the tendon and the tendon is cut.

[0039] In a further preferred embodiment of the present invention, the diameter of the circular closed opening at the head end of the tendon head 13 is 8 mm and 9 mm, so that the diameter of the graft taken is 8 mm and 9 mm.

[0040] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A circular closed-end tendon remover, characterized in that: include; A circular tendon harvester (1) for use in an autologous quadriceps tendon harvested as a cylindrical graft during cruciate ligament reconstruction surgery of the knee; The circular tendon removal device (1) comprises an operating handle (11), a connecting rod (12) and a tendon removal head (13); The operating handle (11) is connected to the connecting rod (12), and the tendon removal head (13) is connected to the connecting rod (12). The tendon removal head (13) is a cutting component for a tendon graft sleeve. The head end of the tendon removal head (13) is inclined and sharp. The head end of the tendon removal head (13) is provided with a tendon removal hole (131), and the tendon removal hole (131) is circular.

2. A circular closed-end tendon remover as claimed in claim 1, characterized in that: The operating handle (11) is provided with an anti-slip thread (111), and the operating handle (11) is cylindrical.

3. A circular closed-end tendon remover as claimed in claim 2, characterized in that: The outer surface of the connecting rod (12) is provided with scale values ​​(121).

4. A circular closed-end tendon remover as claimed in claim 3, characterized in that: The position of the head end of the tendon removal head (13) is a reference starting scale, the maximum value of the outer surface scale value (121) of the connecting rod (12) is 9 cm, and the length of the connecting rod (12) is 10 cm.

5. A circular closed-end tendon remover as claimed in claim 1, characterized in that: The head end of the tendon removal head (13) has an inclination angle of 15°.

6. A circular closed-end tendon remover as claimed in claim 1, characterized in that: The diameter of the head end of the connecting rod (12) is smaller than the width of the tail end of the tendon removal head (13), and the width of the tendon removal head (13) gradually decreases from the head end to the tail end.

7. A circular closed-end tendon remover as claimed in claim 1, characterized in that: Both sides of the middle portion of the tendon removal head (13) toward the end are arranged in an arc shape.

8. A circular closed-end tendon remover as claimed in claim 1, characterized in that: The diameter of the circular closed opening at the head end of the tendon removal head (13) is of two specifications: 8 mm and 9 mm.

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