Clinical drag hook assembly for mammary gland and thyroid gland

Abstract

The invention relates to the technical field of medical instruments, and discloses a clinical drag hook assembly for mammary gland and thyroid gland, which comprises a sealed drag hook mechanism, the device structurally comprises two movable magnetic fixing convex blocks, a drag hook capable of being installed on one sides of the magnetic fixing convex blocks in a magnetic adsorption mode, a limiting insertion head capable of positioning the angle of the drag hook and an elastic rubber sleeve embedded between the two magnetic fixing convex blocks and having a sealing function. According to the clinical drag hook assembly for the mammary gland and the thyroid gland, the traction length of the drag hook assembly can be adjusted according to the condition of a patient, so that the applicability of equipment is improved, the balance point of the equipment and the axis of the equipment are in a parallel state, and therefore a doctor can master the balance degree conveniently; the device isolates the periphery of the mechanical gap in a rubber wrapping manner, so that the equipment cleaning difficulty is reduced.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a retractor assembly for clinical use in breast and thyroid glands. Background Technology

[0002] Existing retractor assemblies for clinical use in breast and thyroid glands have been found to have several drawbacks during use. Because most of these retractor assemblies are fixed in structure, the traction length cannot be adjusted. This necessitates the preparation of various sizes of retractor assemblies when performing traction procedures on patients. However, it is difficult to quickly select the appropriate length based on the patient's condition. Furthermore, when retractor assemblies of the same length are required, a shortage of medical devices occurs.

[0003] To this end, Chinese Patent Publication No. CN213883329U discloses a "Breast and Thyroid Retractor Assembly for Clinical Use". Its main structure includes an adjustment box, with a pull plate at the center of the front of the adjustment box. The pull plate drives symmetrically movable claws on both sides of the adjustment box to move towards or away from each other. The pull plate has a locking mechanism connected to the adjustment box. When the pull plate moves away from the adjustment box, the locking mechanism is released. When the force applied to the pull plate is removed, the pull plate automatically resets and the locking mechanism remains locked. This breast and thyroid retractor assembly allows medical personnel to adjust the position between the two claws when adjusting the traction length according to the patient's condition, and keeps the pull plate locked after the adjustment is complete.

[0004] However, the aforementioned regulating box is designed with symmetrical gears and misaligned pawls, which causes its center of gravity to shift during use. Therefore, it is difficult for the device to maintain balance during use, which can easily lead to medical accidents. At the same time, tissue fluid during surgery can easily enter the regulating box through the gaps in the device's movement, and the tissue fluid inside is difficult to clean, making cleaning quite difficult. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a retractor assembly for clinical use in breast and thyroid glands. The retractor assembly's pulling length can be adjusted according to the patient's condition, thereby improving the device's applicability. Furthermore, the device's balance point and axis are parallel, making it easier for doctors to control its balance. Additionally, the device uses rubber wrapping to isolate the mechanical gaps, reducing the difficulty of cleaning the device and solving the aforementioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a retractor assembly for clinical use in breast and thyroid glands, comprising a sealed retractor mechanism, the structure of which includes two movable magnetic fixing protrusions, a retractor that can be magnetically attached to one side of the magnetic fixing protrusions, a limiting insertion head that can position the angle of the retractor, and an elastic rubber sleeve embedded between the two magnetic fixing protrusions and providing a sealing function; and a rotating length adjustment mechanism, the structure of which includes a first external thread rod and a second external thread rod fixedly connected to the two magnetic fixing protrusions, a horizontal threaded sleeve that is threadedly connected to the first and second external thread rods and can change the distance between the first and second external thread rods when rotating, and a polygonal limiting rod that can prevent the first and second external thread rods from rotating relative to each other.

[0007] Preferably, the sealed hook mechanism further includes an insertion cavity disposed at one end of the magnetic fixing protrusion, the two annular open ends of the elastic rubber sleeve are embedded in the inner circumferential walls of the two magnetic fixing protrusions, the center of the elastic rubber sleeve forms a sealing area, the magnetic fixing protrusion is provided with a limiting groove on the inner side of the insertion cavity, one end of the hook and the axial connecting rod is provided with a locking block integrally formed with it and capable of being inserted into the insertion cavity, one end of the locking block is provided with a limiting insertion head integrally formed with it and capable of being inserted into the limiting groove, one end of the axial connecting rod is equipped with a piercing needle through a pull rope, and a locking cap is sleeved on the needle tip of the piercing needle.

[0008] Preferably, both the magnetic fixing protrusion and the snap-in block are made of magnetic material.

[0009] Preferably, the attraction generated by the magnetic fixing protrusion and the locking block after they come into contact with each other is sufficient to keep the retractor stable during the operation.

[0010] Preferably, the elastic rubber sleeve is made of a rubber material with elastic extensibility.

[0011] Preferably, the cross-sectional shape of the limiting groove is consistent with the cross-sectional shape of the limiting insertion head, both being polygonal structures, and the structural dimensions of the cross-sectional shape of the limiting groove match the structural dimensions of the cross-sectional shape of the limiting insertion head.

[0012] Preferably, the rotary length adjustment mechanism includes a horizontal threaded sleeve, a first external threaded rod, and a second external threaded rod. One end of the horizontal threaded sleeve has a first internal threaded cavity with a concave structure, and the other end of the horizontal threaded sleeve has a second internal threaded cavity with a concave structure. The rod body of the first external threaded rod is installed inside the first internal threaded cavity through the first thread structure, and the rod body of the second external threaded rod is installed inside the second internal threaded cavity through the second thread structure. The first and second external threaded rods have concave polygonal limiting cavities at their opposite ends. A polygonal limiting rod inserted into the polygonal limiting cavity is fixedly installed at the center of the horizontal threaded sleeve. One end of the first external threaded rod has a first connecting plate integrally formed with it and fixedly connected to one of the magnetic fixing protrusions. One end of the second external threaded rod has a second connecting plate integrally formed with it and fixedly connected to the other magnetic fixing protrusion.

[0013] Preferably, the cross-sectional shape of the polygonal limiting cavity is consistent with the cross-sectional shape of the polygonal limiting rod, both being polygonal structures, and the structural dimensions of the cross-sectional shape of the polygonal limiting cavity match the structural dimensions of the cross-sectional shape of the polygonal limiting rod.

[0014] Preferably, the first thread structure includes an internal thread structure disposed inside the first internal thread cavity and an external thread structure disposed on the first external thread rod body, and the second thread structure includes an internal thread structure disposed inside the second internal thread cavity and an external thread structure disposed on the second external thread rod body, and the helical direction of the first thread structure is opposite to the helical direction of the second thread structure.

[0015] Compared with the prior art, the present invention provides a retractor assembly for clinical use in breast and thyroid glands, which has the following beneficial effects: The pull length of the hook assembly can be adjusted according to the patient's condition, thereby improving the applicability of the device. Furthermore, the device's balance point and axis are parallel, making it easier for doctors to control its balance. In addition, the device uses rubber wrapping to isolate the mechanical gaps, thereby reducing the difficulty of cleaning the device. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the present invention; Figure 3 This is a perspective view of the sealed hook mechanism in this invention; Figure 4 This is a three-dimensional cross-sectional view of the sealed hook mechanism in this invention; Figure 5 This is a perspective view of the rotary length adjustment mechanism in this invention; Figure 6 This is a three-dimensional cross-sectional view of the rotary length adjustment mechanism in this invention.

[0017] Among them: 1. Sealed hook mechanism; 11. Magnetic fixing protrusion; 12. Elastic rubber sleeve; 13. Sealed area; 14. Insertion cavity; 15. Limiting groove; 16. Snap-in block; 17. Limiting insertion head; 18. Hook; 19. Axial connecting rod; 110. Pull rope; 111. Piercing needle; 112. Locking cap; 2. Rotary length adjustment mechanism; 21. Horizontal threaded sleeve; 22. No. 1 internal thread cavity; 23. No. 2 internal thread cavity; 24. No. 1 thread structure; 25. No. 2 thread structure; 26. No. 1 external thread rod; 27. No. 2 external thread rod; 28. No. 1 connecting plate; 29. ​​No. 2 connecting plate; 210. Polygonal limiting cavity; 211. Polygonal limiting rod. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1 and Figure 2 A retractor assembly for clinical use in breast and thyroid glands. The materials used to manufacture this device must all be medical-grade to ensure safety during use.

[0020] For resilient sealing and detachable connection, please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 and Figure 4 A sealed hook mechanism 1 is required, which includes two movable magnetic fixing protrusions 11, a hook 18 that can be magnetically attached to one side of the magnetic fixing protrusions 11, a limiting insertion head 17 that can position the angle of the hook 18, and an elastic rubber sleeve 12 embedded between the two magnetic fixing protrusions 11 and providing a sealing function. During operation, the elastic rubber sleeve 12 will contract, preventing external tissue fluid from entering its interior to ensure the sealing of the rotary length adjustment mechanism 2. At the same time, the contraction of the elastic rubber sleeve 12 can also pre-tighten the first external thread rod 26 and the second external thread rod 27, thereby ensuring the compactness of the structure. When a new hook 18 needs to be replaced, the corresponding snap-fit ​​block 16 can be pulled out from the magnetic fixing protrusions 11, thus achieving elastic sealing and detachable connection.

[0021] For details regarding the specific structure of the sealed hook mechanism 1, please refer to [link / reference]. Figure 3 and Figure 4 It also includes an insertion cavity 14 disposed at one end of the magnetic fixing protrusion 11. The two annular open ends of the elastic rubber sleeve 12 are embedded in the inner circumferential walls of the two magnetic fixing protrusions 11. The center of the elastic rubber sleeve 12 forms a sealing section 13. The magnetic fixing protrusion 11 is provided with a limiting groove 15 on the inner side of the insertion cavity 14. One end of the hook 18 and the axial connecting rod 19 is provided with a snap-fit ​​block 16 integral with it and capable of being inserted into the insertion cavity 14. One end of the snap-fit ​​block 16 is provided with a limiting insertion head 17 integral with it and capable of being inserted into the limiting groove 15. One end of the axial connecting rod 19 is connected by a pull rope 1. 10 is equipped with a puncture needle 111, and a locking cap 112 is fitted at the tip of the puncture needle 111. The magnetic fixing protrusion 11 and the locking block 16 are both made of magnetic material. The attraction generated by the magnetic fixing protrusion 11 and the locking block 16 after they come into contact with each other is sufficient to keep the retractor 18 in a stable state during the operation. The elastic rubber sleeve 12 is made of rubber material with elastic extension function. The cross-sectional shape of the limiting groove 15 is consistent with the cross-sectional shape of the limiting insertion head 17, both of which are polygonal structures, and the cross-sectional dimensions of the limiting groove 15 match the cross-sectional dimensions of the limiting insertion head 17.

[0022] To enable the length adjustment function of hook 18, please refer to [link / reference]. Figure 1 , Figure 2 , Figure 5 and Figure 6 A rotating length adjustment mechanism 2 needs to be installed. Its structure includes a first external threaded rod 26 and a second external threaded rod 27 fixedly connected to two magnetic fixing protrusions 11; a horizontal threaded sleeve 21 threadedly connected to the first external threaded rod 26 and the second external threaded rod 27, capable of changing the distance between them during rotation; and a polygonal limiting rod 211 preventing relative rotation between the first external threaded rod 26 and the second external threaded rod 27. The horizontal threaded sleeve 21 is rotated in a directional manner. Due to the threaded connection and the opposite threaded structure, it can simultaneously adjust the distance between the first external threaded rod 26 and the second external threaded rod 27. Under the action of the lateral limiting rod 211, the distance between the first external thread rod 26 and the second external thread rod 27 will change, thereby changing the distance between the two hooks 18. During the rotation of the horizontal threaded sleeve 21, the doctor applies gripping force to the elastic rubber sleeve 12 and then rotates it. Since the elastic rubber sleeve 12 has elastic extension function, the elastic rubber sleeve 12 will rotate at a certain angle. After a single rotation, the elastic rubber sleeve 12 will reset under its own elastic contraction capacity. Then, by rotating the elastic rubber sleeve 12, the length adjustment function of the hook 18 can be achieved.

[0023] For details regarding the specific structure of the rotary length adjustment mechanism 2, please refer to [link / reference]. Figure 5 and Figure 6 The system includes a horizontal threaded sleeve 21, a first external threaded rod 26, and a second external threaded rod 27. One end of the horizontal threaded sleeve 21 has a first internal threaded cavity 22 with a concave structure, and the other end has a second internal threaded cavity 23 with a concave structure. The rod of the first external threaded rod 26 is installed inside the first internal threaded cavity 22 via a first thread structure 24, and the rod of the second external threaded rod 27 is installed inside the second internal threaded cavity 23 via a second thread structure 25. The first and second external threaded rods 26 and 27 have concave polygonal limiting cavities 210 at their opposite ends. A polygonal limiting rod 211, inserted into the polygonal limiting cavity 210, is fixedly installed at the center of the horizontal threaded sleeve 21. One end of the first external threaded rod 26 has an integral structure and is fixed to one of the magnetic fixing protrusions 11. The first connecting plate 28 is connected to the second external thread rod 27. One end of the second external thread rod 27 is provided with a second connecting plate 29 that is integral with it and fixedly connected to another magnetic fixing protrusion 11. The cross-sectional shape of the polygonal limiting cavity 210 is consistent with the cross-sectional shape of the polygonal limiting rod 211, both being polygonal structures. The cross-sectional dimensions of the polygonal limiting cavity 210 match the cross-sectional dimensions of the polygonal limiting rod 211. The first thread structure 24 includes an internal thread structure disposed inside the first internal thread cavity 22 and an external thread structure disposed on the first external thread rod 26. The second thread structure 25 includes an internal thread structure disposed inside the second internal thread cavity 23 and an external thread structure disposed on the second external thread rod 27. The helical direction of the first thread structure 24 is opposite to the helical direction of the second thread structure 25.

[0024] In use, the puncture needle 111 is used to puncture the surgical incision using non-woven fabric. Then, the locking cap 112 is placed over the needle body of the puncture needle 111, trapping the non-woven fabric between the locking cap 112 and the annular end face of the puncture needle 111. Next, another hook 18 is inserted into the patient's incision. The horizontal threaded sleeve 21 is rotated in a directional manner. Due to the reversed thread structure and the action of the polygonal limiting rod 211, the distance between the first external thread rod 26 and the second external thread rod 27 changes, thereby altering the distance between the two hooks 18. During the rotation of the horizontal threaded sleeve 21, the doctor applies gripping force to the elastic rubber sleeve 12 and then rotates it. Because the elastic rubber sleeve 12 has elastic extension function, the elastic rubber sleeve 12 will rotate at a certain angle. After a single rotation, the elastic rubber sleeve 12 returns to its original position under its own elastic contraction capacity. The length of the hook 18 can be adjusted by rotating the elastic rubber sleeve 12. When a new hook 18 needs to be replaced, the corresponding snap-fit ​​block 16 can be pulled out from the magnetic fixing protrusion 11, thereby achieving elastic sealing and detachable connection.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A retractor assembly for clinical use in breast and thyroid glands, characterized in that: include, The sealed hook mechanism (1) includes two movable magnetic fixing protrusions (11), a hook (18) that can be magnetically attached to one side of the magnetic fixing protrusions (11), an axial connecting rod (19), a limiting insert head (17) that can position the angle of the hook (18), and an elastic rubber sleeve (12) that is embedded between the two magnetic fixing protrusions (11) and has a sealing function. And a rotating length adjustment mechanism (2), the structure of which includes a first external thread rod (26) and a second external thread rod (27) fixedly connected to two magnetic fixing protrusions (11), a horizontal threaded sleeve (21) threadedly connected to the first external thread rod (26) and the second external thread rod (27) and capable of changing the distance between the first external thread rod (26) and the second external thread rod (27) when rotating, and a polygonal limiting rod (211) capable of preventing relative rotation between the first external thread rod (26) and the second external thread rod (27).

2. The retractor assembly for clinical use in breast and thyroid glands according to claim 1, characterized in that: The sealed hook mechanism (1) further includes an insertion cavity (14) located at one end of the magnetic fixing protrusion (11). The two annular open ends of the elastic rubber sleeve (12) are embedded in the inner circumferential wall of the two magnetic fixing protrusions (11). The center of the elastic rubber sleeve (12) forms a sealing area (13). The magnetic fixing protrusion (11) is provided with a limiting groove (15) on the inner side of the insertion cavity (14). One end of the hook (18) and the axial connecting rod (19) is provided with a snap-fit ​​block (16) that is integral with it and can be inserted into the insertion cavity (14). One end of the snap-fit ​​block (16) is provided with a limiting insertion head (17) that is integral with it and can be inserted into the limiting groove (15). One end of the axial connecting rod (19) is equipped with a piercing needle (111) through a pull rope (110). The needle tip of the piercing needle (111) is fitted with a locking cap (112).

3. The retractor assembly for clinical use in breast and thyroid glands according to claim 2, characterized in that: Both the magnetic fixing protrusion (11) and the snap-in block (16) are made of magnetic material.

4. The retractor assembly for clinical use in breast and thyroid glands according to claim 3, characterized in that: The attraction generated by the magnetic fixing protrusion (11) and the snap-in block (16) after they come into contact with each other is sufficient to keep the hook (18) stable during the operation.

5. A retractor assembly for clinical use in breast and thyroid glands according to claim 4, characterized in that: The elastic rubber sleeve (12) is made of rubber material with elastic extension function.

6. The retractor assembly for clinical use in breast and thyroid glands according to claim 5, characterized in that: The cross-sectional shape of the limiting groove (15) is consistent with the cross-sectional shape of the limiting insertion head (17), both being polygonal structures, and the structural dimensions of the cross-section of the limiting groove (15) match the structural dimensions of the cross-section of the limiting insertion head (17).

7. A retractor assembly for clinical use in breast and thyroid glands according to claim 6, characterized in that: The rotary length adjustment mechanism (2) includes a horizontal threaded sleeve (21), a first external threaded rod (26), and a second external threaded rod (27). One end of the horizontal threaded sleeve (21) is provided with a first internal threaded cavity (22) with a concave structure, and the other end of the horizontal threaded sleeve (21) is provided with a second internal threaded cavity (23) with a concave structure. The rod body of the first external threaded rod (26) is installed inside the first internal threaded cavity (22) through a first threaded structure (24), and the rod body of the second external threaded rod (27) is installed inside the second internal threaded cavity (23) through a second threaded structure (25). The first external thread rod (26) and the second external thread rod (27) are provided with a concave polygonal limiting cavity (210) at their opposite ends. A polygonal limiting rod (211) inserted into the polygonal limiting cavity (210) is fixedly installed at the center of the horizontal threaded sleeve (21). One end of the first external thread rod (26) is provided with a first connecting plate (28) that is integral with it and fixedly connected to one of the magnetic fixing protrusions (11). One end of the second external thread rod (27) is provided with a second connecting plate (29) that is integral with it and fixedly connected to the other magnetic fixing protrusion (11).

8. A retractor assembly for clinical use in breast and thyroid glands according to claim 7, characterized in that: The cross-sectional shape of the polygonal limiting cavity (210) is consistent with the cross-sectional shape of the polygonal limiting rod (211), both being polygonal structures, and the structural dimensions of the cross-section of the polygonal limiting cavity (210) match the structural dimensions of the cross-section of the polygonal limiting rod (211).

9. A retractor assembly for clinical use in breast and thyroid glands according to claim 8, characterized in that: The first thread structure (24) includes an internal thread structure disposed inside the first internal thread cavity (22) and an external thread structure disposed on the first external thread rod (26). The second thread structure (25) includes an internal thread structure disposed inside the second internal thread cavity (23) and an external thread structure disposed on the second external thread rod (27). The helical direction of the first thread structure (24) is opposite to the helical direction of the second thread structure (25).

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