A sleeve and drag hook integrated structure

Abstract

The application relates to the technical field of medical devices, in particular to a cannula and drag hook integrated structure which comprises a drag hook handle, a drag hook main body arranged on one side of the drag hook handle and a cannula main body, the front end of the drag hook handle is provided with a universal ball seat, the universal ball seat is provided with a mounting cavity, the cannula main body is provided with a connecting arm, and the connecting arm is fixedly connected with a universal ball head which rotates in the mounting cavity. The universal ball head is rotated in the mounting cavity by moving the connecting arm, so that the horizontal position and the angle of the cannula main body relative to the drag hook main body are flexibly adjusted, and the use is more convenient.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to an integrated structure of a cannula and hook. Background Technology

[0002] In surgical procedures, access cannulas and retractors are commonly used auxiliary instruments. Access cannulas are used to establish a surgical channel, facilitating the entry and exit of surgical instruments; retractors are used to retract tissue and expose the surgical field. In traditional surgical procedures, these two instruments are usually used separately, which increases the complexity and time cost of the surgical procedure.

[0003] In recent years, some integrated cannula and retractor designs have emerged in the market. These designs aim to simplify surgical procedures, reduce the number of instrument changes, and thus improve surgical efficiency. However, existing integrated structures mainly fix the retractor and cannula together, and their positions and angles cannot be adjusted. This makes it difficult to flexibly adjust the cannula's position according to actual needs during surgery, which is very inconvenient. Therefore, further improvements are needed. Utility Model Content

[0004] To facilitate adjustment of the sleeve position, this application provides an integrated sleeve hook structure.

[0005] The integrated sleeve hook structure provided in this application adopts the following technical solution: An integrated sleeve hook structure includes a hook handle, a hook body disposed on one side of the hook handle, and a sleeve body. The front end of the hook handle is provided with a universal ball seat, which has an installation cavity. The sleeve body is provided with a connecting arm, and the connecting arm is fixedly connected to a universal ball head that rotates in the installation cavity.

[0006] By adopting the above technical solution, the universal ball head can be rotated in the installation cavity by turning the connecting arm, thereby flexibly adjusting the horizontal position and angle of the sleeve body relative to the hook body, making it more convenient to use.

[0007] Preferably, the universal ball joint includes a base fixedly connected to the upper front surface of the hook handle and an anti-disengagement sleeve threaded onto the base. The upper end face of the base has a groove adapted to the ball head. The upper opening size of the anti-disengagement sleeve is smaller than the diameter of the universal ball head. The inner cavity of the anti-disengagement sleeve and the groove form an installation cavity for the universal ball head to rotate and assemble.

[0008] By adopting the above technical solution, the threaded connection between the anti-disengagement sleeve and the base facilitates installation and disassembly. The upper opening size of the anti-disengagement sleeve is smaller than the diameter of the universal ball head, which can prevent the universal ball head from coming out and allow the universal ball head to rotate stably in the installation cavity. In addition, after the universal ball head has finished rotating, tightening the anti-disengagement sleeve will cause the inner wall of the anti-disengagement sleeve to press against the outer wall of the universal ball head, thereby restricting the rotation of the universal ball head and maintaining the stability of the position and angle of the sleeve body.

[0009] Preferably, the universal ball joint is provided with an elastic ball sleeve, which abuts against the inner wall of the mounting cavity.

[0010] By adopting the above technical solution, the elastic ball sleeve of the universal ball head is pressed against the inner wall of the mounting cavity. After the universal ball head is rotated by turning the connecting arm to adjust the position and angle of the sleeve body, the position and angle of the sleeve body are kept stable by relying on the friction between the elastic ball sleeve and the inner wall of the mounting cavity.

[0011] Preferably, the connecting arm is detachably connected to a connecting sleeve, the sleeve body slides through the connecting sleeve, and the connecting sleeve is provided with a limiting member to restrict the sliding of the sleeve body.

[0012] By adopting the above technical solution, the main body of the sleeve slides through the connecting sleeve, adjusting the height position of the main body of the sleeve relative to the hook body; the connecting sleeve is equipped with a limiting component to restrict the sliding of the main body of the sleeve, so that the main body of the sleeve can maintain a stable position after adjustment.

[0013] Preferably, the outer wall of the connecting sleeve is provided with a deformation groove along the axial direction. The deformation groove is connected to the inner cavity of the connecting sleeve. The two ends of the deformation groove extend to the two ends of the connecting sleeve. The outer wall of the connecting sleeve protrudes and is fixed with an installation part. There are two installation parts, which are respectively located on both sides of the deformation groove. The limiting member includes a screw and a knob. The screw passes through one of the installation parts and is threadedly connected to the other installation part. The knob is fixedly connected to the screw and abuts against the outer wall of the installation part.

[0014] By adopting the above technical solution, the screw is moved by rotating the knob, and the inner diameter of the connecting sleeve is changed, thereby achieving the slip restriction of the sleeve body.

[0015] Preferably, the limiting member is a set screw threaded through the connecting sleeve, with the end of the set screw abutting against the outer wall of the sleeve body.

[0016] By adopting the above technical solution, the set screw thread passes through the connecting sleeve and its end abuts against the outer wall of the sleeve body, which can restrict the sliding of the sleeve body in the connecting sleeve and facilitate fixing after the position of the sleeve body is adjusted.

[0017] Preferably, a sleeve cover is fixedly fitted onto the upper end of the sleeve body, a sleeve handle is fixedly connected to the outer wall of the sleeve cover, and a through hole communicating with the inner cavity of the sleeve body is opened on the upper surface of the sleeve cover.

[0018] By adopting the above technical solution, the cap at the upper end of the cannula body facilitates the installation of the cannula handle, the cannula handle facilitates the operation of the cannula body by medical staff, and the through hole on the upper end of the cap connects to the inner cavity of the cannula body, facilitating the entry and exit of surgical instruments through the inner cavity of the cannula body.

[0019] In summary, this utility model has the following beneficial effects: 1. By turning the connecting arm, the universal ball head can be rotated within the mounting cavity, thereby flexibly adjusting the horizontal position and angle of the sleeve body relative to the hook body, making it more convenient to use; 2. The main body of the sleeve slides through the connecting sleeve to adjust the height of the main body of the sleeve relative to the hook body; the connecting sleeve is equipped with a limiting device to restrict the sliding of the main body of the sleeve, so that the main body of the sleeve can maintain a stable position after adjustment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an integrated sleeve hook structure in Embodiment 1; Figure 2 This is a schematic diagram of the universal ball joint structure in Example 1; Figure 3 yes Figure 2 A magnified view of a portion at point A; Figure 4 This is a schematic diagram of the limiting component in Embodiment 1; Figure 5 This is a schematic diagram of the universal ball joint structure in Example 2; Figure 6 This is a schematic diagram of the limiting component in Example 3.

[0021] In the diagram, 1. Hook handle; 11. Mounting hole; 2. Hook body; 21. Bending part; 3. Sleeve body; 31. Sleeve cover; 32. Sleeve handle; 33. Through hole; 4. Universal ball seat; 41. Support column; 42. Base; 43. Anti-disengagement sleeve; 44. Force application part; 5. Universal ball head; 51. Connecting arm; 52. Limiting hole; 53. Elastic ball sleeve; 6. Connecting sleeve; 61. Insertion hole; 62. Screw; 63. Deformation groove; 64. Mounting part; 7. Limiting component; 71. Screw; 72. Knob. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0023] Example 1: This application discloses an integrated sleeve hook structure, referring to... Figure 1 , Figure 2 It includes a hook handle 1, a hook body 2 and a sleeve body 3. The hook handle 1 has a mounting hole 11 at the front end. The upper part of the hook body 2 has a bent part 21, which is fixedly inserted into the mounting hole 11.

[0024] A universal ball seat 4 is provided on the upper front surface of the hook handle 1. Specifically, the universal ball seat 4 includes a support column 41 fixedly connected to the upper front surface of the hook handle 1, a base 42 fixedly connected to the upper end face of the support column 41, and an anti-disengagement sleeve 43 threaded onto the base 42. A force-applying part 44 protrudes from the outer wall of the anti-disengagement sleeve 43. The upper end face of the base 42 has a groove, and the inner cavity of the anti-disengagement sleeve 43 and the groove form an installation cavity. A universal ball head 5 rotates within the installation cavity, and the upper opening size of the anti-disengagement sleeve 43 is smaller than the diameter of the universal ball head 5.

[0025] Reference Figure 2 , Figure 3 The universal ball joint 5 is fixedly connected to a connecting arm 51 externally placed on the anti-detachment sleeve 43. The other end of the connecting arm 51 is detachably connected to a connecting sleeve 6. Specifically, the outer side wall of the connecting sleeve 6 is provided with an insertion hole 61 in the radial direction. The end of the connecting arm 51 away from the universal ball joint 5 is inserted into the insertion hole 61. The end side wall of the connecting arm 51 inserted into the insertion hole 61 is provided with a limiting hole 52. The lower end face of the connecting sleeve 6 is threaded with a screw 62, which is inserted into the limiting hole 52.

[0026] Reference Figure 4 The sleeve body 3 slides through the connecting sleeve 6, and the connecting sleeve 6 is provided with a limiting member 7 to restrict the sliding of the sleeve body 3. In this embodiment, the outer wall of the connecting sleeve 6 is provided with a deformation groove 63 along the axial direction. The deformation groove 63 communicates with the inner cavity of the connecting sleeve 6, and the two ends of the deformation groove 63 extend to the two ends of the connecting sleeve 6. The outer wall of the connecting sleeve 6 is provided with a protruding mounting part 64. There are two mounting parts 64, which are respectively located on both sides of the deformation groove 63. The limiting member 7 includes a screw 71 and a knob 72. The screw 71 passes through one of the mounting parts 64 and is threadedly connected to the other mounting part 64. The knob 72 is fixedly connected to the screw 71 and abuts against the outer wall of the mounting part 64.

[0027] A sleeve cover 31 is fixedly fitted on the upper end of the sleeve body 3. A sleeve handle 32 is fixedly connected to the outer wall of the sleeve cover 31. A through hole 33 communicating with the inner cavity of the sleeve body 3 is opened on the upper surface of the sleeve cover 31.

[0028] The implementation principle of the integrated sleeve and hook structure in this application embodiment is as follows: By bending the connecting arm 51, the universal ball head 5 rotates within the mounting cavity, thereby flexibly adjusting the horizontal position and angle of the sleeve body 3 relative to the hook body 2. After adjustment, the anti-disengagement sleeve 43 is tightened, so that the inner wall of the anti-disengagement sleeve 43 abuts against the outer wall of the universal ball head 5, thereby restricting the rotation of the universal ball head 5 and maintaining the stability of the position and angle of the sleeve body 3. Furthermore, the sleeve body 3 slides through the connecting sleeve 6, allowing adjustment of the height position of the sleeve body 3 relative to the hook body 2. After adjustment, the screw 71 is moved by rotating the knob 72, changing the inner diameter of the connecting sleeve 6, thus restricting the sliding of the sleeve body 3.

[0029] Example 2: The difference from Example 1 is that, referring to Figure 5 The universal ball joint 5 is fitted with an elastic ball sleeve 53. In this embodiment, the elastic ball sleeve 53 can be a rubber sleeve or a silicone sleeve, and the elastic ball sleeve 53 is pressed against the inner wall of the mounting cavity. After the universal ball joint 5 is rotated by turning the connecting arm 51 to adjust the position and angle of the sleeve body 3, the position and angle of the sleeve body 3 are kept stable by the friction between the elastic ball sleeve 53 and the inner wall of the mounting cavity.

[0030] Example 3: The difference from Example 1 is that, referring to Figure 6 The limiting member 7 is a set screw threaded through the connecting sleeve 6. The end of the set screw abuts against the outer wall of the sleeve body 3, which can limit the sliding of the sleeve body 3 in the connecting sleeve 6 and facilitate fixing after the position of the sleeve body 3 is adjusted.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An integrated sleeve hook structure, characterized in that: It includes a hook handle (1), a hook body (2) disposed on one side of the hook handle (1), and a sleeve body (3). The front end of the hook handle (1) is provided with a universal ball seat (4), the universal ball seat (4) has an installation cavity, and the sleeve body (3) is provided with a connecting arm (51). The connecting arm (51) is fixedly connected to a universal ball head (5) that rotates in the installation cavity.

2. The integrated sleeve hook structure according to claim 1, characterized in that: The universal ball joint (4) includes a base (42) fixedly connected to the upper front surface of the hook handle (1) and an anti-disengagement sleeve (43) threaded onto the base (42). The upper surface of the base (42) has a groove adapted to the ball head. The upper opening size of the anti-disengagement sleeve (43) is smaller than the diameter of the universal ball head (5). The inner cavity of the anti-disengagement sleeve (43) and the groove form an installation cavity for the universal ball head (5) to rotate and assemble.

3. The integrated sleeve hook structure according to claim 1, characterized in that: The universal ball joint (5) is fitted with an elastic ball sleeve (53), which is pressed against the inner wall of the mounting cavity.

4. The integrated sleeve hook structure according to claim 1, characterized in that: The connecting arm (51) is detachably connected to a connecting sleeve (6), and the sleeve body (3) slides through the connecting sleeve (6). The connecting sleeve (6) is provided with a limiting member (7) to restrict the sliding of the sleeve body (3).

5. The integrated sleeve hook structure according to claim 4, characterized in that: The outer wall of the connecting sleeve (6) is provided with a deformation groove (63) along the axial direction. The deformation groove (63) is connected to the inner cavity of the connecting sleeve (6). The two ends of the deformation groove (63) extend to the two ends of the connecting sleeve (6). The outer wall of the connecting sleeve (6) is provided with a mounting part (64). There are two mounting parts (64) and they are located on both sides of the deformation groove (63). The limiting member (7) includes a screw (71) and a knob (72). The screw (71) passes through one of the mounting parts (64) and is threaded to the other mounting part (64). The knob (72) is fixedly connected to the screw (71) and abuts against the outer wall of the mounting part (64).

6. The integrated sleeve hook structure according to claim 4, characterized in that: The limiting member (7) is a set screw threaded through the connecting sleeve (6), and the end of the set screw abuts against the outer wall of the sleeve body (3).

7. The integrated sleeve hook structure according to claim 1, characterized in that: The upper end of the sleeve body (3) is fixedly fitted with a sleeve cover (31), and the outer wall of the sleeve cover (31) is fixedly connected with a sleeve handle (32). The upper end face of the sleeve cover (31) is provided with a through hole (33) that communicates with the inner cavity of the sleeve body (3).

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