Double-end protection drag hook for knee joint operation
By designing knee joint surgery double -headed protection pull hooks, the problem of hook head fixation in the existing technology is difficult to adapt to the depth of different body types and surgery, achieve higher grip comfort and stability, reduce damage to ligaments and soft tissues, Essence
Patent Information
- Application Number
- CN202420060755.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-10
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-01-10
AI Technical Summary
The existing knee surgery hooks usually have only one hook head and the hook head is fixed in the form, making it difficult to adapt to patients of different body types and surgeries of different depths or opening sizes, easily damage ligaments and soft tissues, and medical staff hold the straight handle for a long time. Poor comfort leads to unstable grip and fatigue.
A knee joint surgery double -headed protective hook is designed, two hook boards and two hook heads are set. The design of the hook board and hook head uses a curved and cone structure. , Applicable to different depths and opening surgery, respectively.
Through the double -headed design, medical staff can choose appropriate hook boards and hook heads as needed to improve the comfort and stability of the grip, reduce the position of the hook head due to fatigue, and reduce the risk of damage to the ligament and soft tissue.
Smart Images
Figure CN222398501U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to a double-head protective retractor for knee joint surgery. Background Art
[0002] During knee surgery, multiple medical staff are required to use retractors for auxiliary operations. Existing retractors usually have only one hook head and the hook head is fixed. Patients of different body shapes and surgeries of different depths or opening sizes all use the same hook head, which can easily damage ligaments and soft tissues. During surgery, medical staff hold the straight handle for a long time, which is uncomfortable and causes unstable grip, fatigue, and unstable position of the hook head, affecting the surgical effect. Utility Model Content
[0003] The utility model aims to provide a double-head protection retractor for knee joint surgery.
[0004] A double-headed protective retractor for knee joint surgery comprises a connecting plate, wherein an arc-shaped bending portion 1 and an arc-shaped bending portion 2 are respectively arranged on the left and right sides of both ends of the connecting plate, wherein the arc-shaped bending portion 1 and the arc-shaped bending portion 2 are respectively fixedly connected to a hook plate 1 and a hook plate 2 on the side away from the connecting plate, wherein the hook plate 1 and the hook plate 2 are respectively fixedly connected to a hook head 1 and a hook head 2 on the side away from the connecting plate, wherein the extended line angle between the connecting plate and the hook plate 1 is 40°, and the extended line angle between the connecting plate and the hook plate 2 is 40°, the front part of the hook head 1 is a semicircular tip, the front part of the hook head 2 is a conical tip, and the extended line angle of the conical tip of the hook head 2 is 30°.
[0005] Furthermore, the hook plate 1 and the hook plate 2 are both arc-shaped structures.
[0006] Furthermore, the edges of the connecting plate, hook plate 1, hook plate 2, hook head 1 and hook head 2 are all rounded transitions.
[0007] Furthermore, the length of the connecting plate is 100 mm, and the width of the connecting plate is 15.2 mm.
[0008] Furthermore, the width of the hook plate 1 is 12 mm, the joint between the hook plate 1 and the arc-shaped bending part 1 is a gradually tapered rounded transition, and the straight-line distance between the semicircular tip of the hook head 1 and the protrusion of the arc-shaped bending part 1 is 27 mm.
[0009] Furthermore, the width of the hook plate 2 is 12 mm, the joining portion between the hook plate 2 and the hook head 2 is a gradually tapered rounded transition, the straight-line distance between the conical tip of the hook head 2 and the protrusion of the arc-shaped bending portion 2 is 27 mm, and the straight-line distance between the conical tip of the hook head 2 and the connecting plate is 64 mm.
[0010] In summary, the utility model has the following beneficial effects:
[0011] The utility model is provided with two hook plates and hook heads. Medical staff can choose to use hook plate one or hook plate two as the surgical hook head according to the patient's body shape, the depth of the operation or the size of the opening. The other hook head is the hand-held part of the medical staff. When the medical staff holds hook plate one or hook plate two which is set at a certain angle to the connecting plate, the grip is more comfortable and stable, and it is not easy to cause the position of the hook head to be unstable due to fatigue, thereby affecting the surgical effect. The hook plate one and hook plate two with arc structures are not easy to damage ligaments and soft tissues, and can protect the damaged ligaments and soft tissues. The conical tip is easy to insert into the affected area with a smaller opening, reducing the tissue damage caused by the insertion of the hook head. The semicircular tip is more rounded, which can reduce the tissue damage caused by the hook head during the operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments:
[0013] Figure 1 This is a three-dimensional structural schematic diagram of a double-headed protective retractor for knee joint surgery according to the utility model;
[0014] Figure 2 This is a schematic diagram of the planar structure of a double-headed protective retractor for knee joint surgery according to the utility model;
[0015] Figure 3 The utility model is a top view of a double-head protective retractor for knee joint surgery.
[0016] In the figure: 1 connecting plate, 2 arc-shaped bending portion 1, 3 arc-shaped bending portion 2, 4 hook head 1, 5 arc-shaped bending portion 2, 6 hook plate 2, 7 hook head 2. DETAILED DESCRIPTION
[0017] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] The following is combined with Figure 1-3 The utility model is further described as follows:
[0019] A double-headed protective retractor for knee joint surgery comprises a connecting plate 1, wherein an arc-shaped bending portion 2 and an arc-shaped bending portion 2 5 are respectively arranged on the left and right sides of both ends of the connecting plate 1, the arc-shaped bending portion 2 and the arc-shaped bending portion 2 5 are respectively fixedly connected to a hook plate 1 3 and a hook plate 2 6 on the side away from the connecting plate 1, the hook plate 1 3 and the hook plate 2 6 are respectively fixedly connected to a hook head 1 4 and a hook head 2 7 on the side away from the connecting plate 1, the hook plate 1 3 and the hook plate 2 6 are both arc-shaped structures, and the edges of the connecting plate 1, the hook plate 1 3, the hook plate 2 6, the hook head 1 4 and the hook head 2 7 are all rounded transitions.
[0020] In this embodiment, the two ends of the connecting plate 1 are connected to the hook plate 1 3 and the hook plate 2 6 respectively through the arc-shaped bending part 1 2 and the arc-shaped bending part 2 5. When performing knee joint surgery, medical staff can choose to use hook plate 1 3 or hook plate 2 6 as the surgical hook head according to the patient's body shape, the depth of the operation or the size of the opening. The other hook head is the hand-held part of the medical staff. When the medical staff holds the hook plate 1 3 or the hook plate 2 6 set at a certain angle to the connecting plate 1, the grip is more comfortable and stable, and it is not easy to cause the position of the hook head to be unstable due to fatigue, which affects the surgical effect. The arc-shaped structure of the hook plate 1 and the hook plate 2 6 has a large contact area with the affected part, and because the hook plate 1 3 and the hook plate 2 6 have a certain curvature, it is not easy to damage the ligaments and soft tissues, and can protect the damaged ligaments and soft tissues. The excessive rounded corners on the edges of the connecting plate 1, hook plate 1 3, hook plate 2 6, hook head 1 4 and hook head 2 7 may play a role in protecting the ligaments and soft tissues.
[0021] The length of the connecting plate 1 is 100 mm, and the width of the connecting plate 1 is 15.2 mm.
[0022] In this embodiment, preferably, the connection plate 1 with a width of 15.2 mm can ensure the strength of the connection plate 1 during surgery without bending or deformation, and the connection plate 1 with a length of 100 mm can be suitable for most knee joint surgeries.
[0023] The extended line angle between the connecting plate 1 and the hook plate 1 3 is 40°, the extended line angle between the connecting plate 1 and the hook plate 2 6 is 40°, the front part of the hook head 1 4 is a semicircular tip, the front part of the hook head 2 7 is a conical tip, and the extended line angle of the conical tip of the hook head 2 7 is 30°.
[0024] In this embodiment, preferably, the angle between the extension line of the connecting plate 1 and the hook plate 1 3 and the angle between the extension line of the connecting plate 1 and the hook plate 2 6 are both 40°, which is convenient for hospital staff to operate, and the hook plate 1 3 and the hook plate 2 6 have better contact with the tissue and do not affect the field of view of the operation. The front part of the hook head 1 4 is a semicircular tip, and the front part of the hook head 2 7 is a 30° conical tip. Medical staff can choose different tips to use according to the size of the incision after the operation. The 30° conical tip is convenient for inserting into the affected area with a smaller opening, reducing tissue damage caused by the insertion of the hook head. The semicircular tip is more rounded, which can reduce tissue damage caused by the hook head during the operation.
[0025] The width of the hook plate 3 is 12 mm, the joint between the hook plate 3 and the arc-shaped bending part 2 is a gradually tapered rounded transition, and the straight-line distance between the semicircular tip of the hook head 4 and the protrusion of the arc-shaped bending part 2 is 27 mm.
[0026] The width of the hook plate 6 is 12 mm, the joint between the hook plate 6 and the hook head 7 is a gradually tapered rounded transition, the straight-line distance between the conical tip of the hook head 7 and the protrusion of the arc-shaped bending part 5 is 27 mm, and the straight-line distance between the conical tip of the hook head 7 and the connecting plate 1 is 64 mm.
[0027] In this embodiment, preferably, the width of hook plate 1 3 and hook plate 2 6 are both 12 mm, which can ensure the strength of hook plate 1 3 and hook plate 2 6 during surgery without bending or deformation. At the same time, the width of hook plate 1 3 and hook plate 2 6 is smaller than that of connecting plate 1, and the joint of hook plate 1 3 and arc-shaped bending portion 1 2 and the joint of hook plate 2 6 and hook head 2 7 are both gradually tapered and rounded, which facilitates the insertion of hook plate 1 3 and hook plate 2 6 into the surgical opening and reduces tissue damage.
[0028] The straight-line distance between the semicircular tip of hook head 1 4 and the conical tip of hook head 2 7 and the bulges of arc-shaped bending part 1 2 and arc-shaped bending part 2 5 is 27 mm, so that the bulges of hook plate 1 3 and hook plate 2 6 of the arc-shaped structure can be tilted toward the connecting plate 1, which is convenient for hospital staff to operate during surgery, ensures that the surgical field of view is not affected, and is more comfortable and stable to hold. Hook plate 1 3 and hook plate 2 6 have better contact with the affected area, which can protect damaged ligaments and soft tissues.
[0029] In this embodiment, preferably, the linear distance between the conical tip of the hook head 2 7 and the connecting plate 1 is 64 mm, and the linear distance between the semicircular tip of the hook head 1 4 and the connecting plate 1 is less than 64 mm, preferably 40-50 mm, and two different lengths are set to increase the scope of surgical application.
[0030] In summary, the present invention is not limited to the above specific embodiments. Those skilled in the art may make several changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to the claims of the present invention.
[0031] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.
[0032] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.
Claims
1. A double-headed protective retractor for knee joint surgery, characterized in that: The invention comprises a connecting plate (1), wherein the left and right sides of both ends of the connecting plate (1) are respectively provided with an arc-shaped bending portion 1 (2) and an arc-shaped bending portion 2 (5), the sides of the arc-shaped bending portion 1 (2) and the arc-shaped bending portion 2 (5) away from the connecting plate (1) are respectively fixedly connected to a hook plate 1 (3) and a hook plate 2 (6), the sides of the hook plate 1 (3) and the hook plate 2 (6) away from the connecting plate (1) are respectively fixedly connected to a hook head 1 (4) and a hook head 2 (7), the extended line angle of the connecting plate (1) and the hook plate 1 (3) is 40°, the extended line angle of the connecting plate (1) and the hook plate 2 (6) is 40°, the front part of the hook head 1 (4) is a semicircular tip, the front part of the hook head 2 (7) is a conical tip, and the extended line angle of the conical tip of the hook head 2 (7) is 30°.
2. A double-headed protective retractor for knee joint surgery as claimed in claim 1, characterized in that: The hook plate 1 (3) and the hook plate 2 (6) are both arc-shaped structures.
3. A double-headed protective retractor for knee joint surgery as claimed in claim 2, characterized in that: The edges of the connecting plate (1), hook plate one (3), hook plate two (6), hook head one (4) and hook head two (7) are all rounded transitions.
4. A double-headed protective retractor for knee joint surgery as claimed in claim 3, characterized in that: The length of the connecting plate (1) is 100 mm, and the width of the connecting plate (1) is 15.2 mm.
5. A double-headed protective retractor for knee joint surgery as claimed in claim 4, characterized in that: The width of the hook plate 1 (3) is 12 mm, the joint between the hook plate 1 (3) and the arc-shaped bending portion 1 (2) is a gradually tapered rounded transition, and the straight-line distance between the semicircular tip of the hook head 1 (4) and the protrusion of the arc-shaped bending portion 1 (2) is 27 mm.
6. A double-headed protective retractor for knee joint surgery as claimed in claim 5, characterized in that: The width of the hook plate 2 (6) is 12 mm, the joint between the hook plate 2 (6) and the hook head 2 (7) is a gradually tapered rounded transition, the straight-line distance between the conical tip of the hook head 2 (7) and the protrusion of the arc-shaped bending portion 2 (5) is 27 mm, and the straight-line distance between the conical tip of the hook head 2 (7) and the connecting plate (1) is 64 mm.