Medical drag hook

Abstract

The invention discloses a medical drag hook, and belongs to the technical field of medical equipment. One end of the connecting rod is connected with the grab handle, the other end of the connecting rod is a mounting end, and the mounting end is of a bent rod structure; the retractor head is arranged at the mounting end and is of a plate type structure, one side face of the retractor head is a contact face used for making contact with human tissue, an expanded outer edge is arranged on the outer edge of the contact face and used for increasing the contact area between the contact face and the human tissue, and the other side face of the retractor head is a reflecting face. And a main reflector is arranged on the reflecting surface. Compared with the prior art, the retractor can hook and pull human tissues, so that the visual range is expanded, meanwhile, the head of the retractor is further provided with the reflecting mirror, the main reflecting mirror can reflect the affected part of the human body or some parts difficult to observe directly according to the control of medical personnel, and the visual range is further expanded. The problems that a traditional medical drag hook is single in function, low in applicability and the like are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and more specifically, to a medical retractor suitable for use in stomatology. Background Art

[0002] Apical surgery is a type of endodontic surgery, and its main purpose is to further treat teeth that still have persistent periapical lesions after conventional endodontic treatment. Retractors are often used during apical surgery to expand the visual area during the operation.

[0003] In the prior art, a typical retractor structure is as follows: it includes a retractor body, one end of which is a curved structure for contacting human tissue and pulling apart some human body components to a certain extent, and the other end of the retractor body is a handle for medical personnel to manipulate the retractor. Although the traditional retractor has achieved the effect of expanding the surgical visual area, it still has some defects, such as: 1. It has a single function and can only expand the front area of ​​medical staff. Some back areas or grooves of human tissue still require the use of a variety of medical tools (such as medical reflectors); 2. The curved structure part used to contact human tissue (lip area) is relatively small in width, which can easily cause greater pressure on human tissue; 3. The handle part cannot be replaced and cannot meet the use requirements of different hand shapes. Summary of the invention

[0004] 1. Technical issues:

[0005] In summary, how to solve the problems of single function and low applicability of traditional medical retractors has become an urgent problem to be solved by those skilled in the art.

[0006] (II) Technical solution:

[0007] To achieve the above object, the present invention provides a medical retractor. In the present invention, the medical retractor comprises:

[0008] Handle;

[0009] A connecting rod connected to the handle, one end of the connecting rod is connected to the handle, the other end of the connecting rod is a mounting end, and the mounting end is a bent rod structure;

[0010] A hook head, wherein the hook head is arranged at the mounting end, the hook head is a plate structure, one side of the hook head is a contact surface for contacting human tissue, an extended outer edge is arranged on the outer edge of the contact surface, and the contact area between the contact surface and the human tissue is increased, and the other side of the hook head is a reflection surface, and a main reflector is arranged on the reflection surface.

[0011] Preferably, in the medical retractor provided by the present invention, the connecting rod and the handle are detachably connected, and the retractor head and the handle are an integrated structure; or, the connecting rod and the handle are detachably connected, and the retractor head and the handle are detachably connected.

[0012] Preferably, in the medical retractor provided by the present invention, the main reflector is fixedly arranged on the reflective surface; or, the main reflector is detachably arranged on the reflective surface.

[0013] Preferably, in the medical retractor provided by the present invention, both end surfaces of the retractor head are auxiliary surfaces, and auxiliary reflectors are arranged on the auxiliary surfaces.

[0014] Preferably, in the medical retractor provided by the present invention, the main reflector includes a mirror body and a mirror frame, and the mirror body is arranged on the mirror frame; the mirror frame is fixedly arranged on the reflecting surface, or the mirror frame is detachably arranged on the reflecting surface.

[0015] Preferably, in the medical retractor provided by the present invention, the mirror body is a plane mirror, a convex mirror or a concave mirror.

[0016] Preferably, in the medical retractor provided by the present invention, the connecting rod is threadedly connected to the handle; or, the connecting rod is clamped on the handle.

[0017] Preferably, in the medical retractor provided by the present invention, the handles include a plurality of handles, and the lengths, diameters and outer contours of the plurality of handles are different.

[0018] Preferably, in the medical retractor provided by the present invention, a contact plate is provided on the back of the retractor head, the contact plate is detachably connected to the retractor head, the back of the contact plate is the contact surface, and the contact surface is a smooth curved surface structure; the extended outer edge is provided on the contact plate and is an integrated structure with the contact plate.

[0019] Preferably, in the medical retractor provided by the present invention, the handle and the connecting rod are coaxially arranged, and the normal of the plane where the main reflector is located and the plane where the axis of the handle is located are the reference plane; the axis of the handle is located in the reference plane; or, the handle and the connecting rod are inclined to one side relative to the main reflector and form an angle of 15° to 30° with the reference plane.

[0020] (III) Beneficial effects:

[0021] As can be seen from the above, the present invention provides a medical retractor. In the present invention, the medical retractor includes: a handle; a connecting rod connected to the handle, one end of the connecting rod is connected to the handle, and the other end of the connecting rod is a mounting end, and the mounting end is a bent rod structure; a retractor head, the retractor head is arranged at the mounting end, the retractor head is a plate structure, one side of the retractor head is a contact surface for contacting human tissue, and an expansion outer edge is arranged on the outer edge of the contact surface to increase the contact area between the contact surface and the human tissue, and the other side of the retractor head is a reflection surface, and a main reflector is arranged on the reflection surface. Through the above structural design, the present invention can not only hook and pull human tissue, thereby expanding the visible range, but also the present invention is also provided with a reflector on the retractor head, and the main reflector can reflect and reflect the human body's diseased part or some parts that are difficult to directly observe according to the manipulation of medical personnel, further expanding the visible range. In addition, the present invention is also provided with an expansion outer edge, which is used to increase the contact area between the contact surface and human tissue, reduce the unit area pressure of the retractor head on human tissue, and improve the comfort of the present invention. The present invention solves the problems of single function and low applicability of traditional medical retractors. In the further structural optimization of the present invention, the handle is tilted to one side relative to the main reflector and forms an angle of 15° to 30°. This optimized design facilitates the use of deep tissue areas such as the posterior teeth area, further expanding the scope of use of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present application are used to provide a further understanding 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. Among them:

[0023] Figure 1a This is a schematic diagram of the overall structure of a medical retractor in an embodiment of the present invention;

[0024] Figure 1b This is a schematic diagram of the overall structure of a medical retractor in another embodiment of the present invention;

[0025] Figure 1c This is a schematic diagram of the overall structure of a medical retractor in another embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall structure of the medical retractor handle and the connecting rod after being separated in an embodiment of the present invention;

[0027] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at the center circle A;

[0028] Figures 4a to 4e All of them are schematic diagrams of the structure of the retractor head;

[0029] Figure 5This is a schematic structural diagram of the embodiment of the present invention when the mirror frame and the reflective surface of the hook head are connected by a ball head;

[0030] Figure 6 This is a schematic structural diagram of a hook head provided with an auxiliary reflector in an embodiment of the present invention.

[0031] exist Figure 1a In the figure, the dotted line shown in a is the normal line of the plane where the main reflector is located, and the dotted line shown in b is the axis of the handle; Figure 1b Based on Figure 1a The schematic diagram of the structure after the handle and the connecting rod are tilted to the left; Figure 1c Based on Figure 1a Schematic diagram of the structure after the handle and connecting rod are tilted to the right.

[0032] In Figure 4, Figure 4a , Figure 4b as well as Figure 4c The contact plate has undergone structural changes. Figure 4d as well as Figure 4e The main reflector has undergone structural changes.

[0033] In Figures 1 to Figure 6 In the figure, the corresponding relationship between the component names and the reference numerals is as follows:

[0034] Handle 1, connecting rod 2, hook head 3, extended outer edge 4, auxiliary reflector 5, mirror body 6, mirror frame 7, contact plate 8. DETAILED DESCRIPTION

[0035] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present invention and does not limit the present invention. In fact, it will be clear to those skilled in the art that modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as a part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desired that the present invention encompasses such modifications and variations within the scope of the appended claims and their equivalents.

[0036] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0037] Please refer to Figures 1 to Figure 6 ,in, Figure 1a This is a schematic diagram of the overall structure of a medical retractor in an embodiment of the present invention; Figure 1b This is a schematic diagram of the overall structure of a medical retractor in another embodiment of the present invention; Figure 1c This is a schematic diagram of the overall structure of a medical retractor in another embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure of the medical retractor handle and the connecting rod after being separated in an embodiment of the present invention; Figure 3 for Figure 2 A schematic diagram of the enlarged structure at the center circle A; Figures 4a to 4e All of them are schematic diagrams of the structure of the retractor head; Figure 5 This is a schematic structural diagram of the embodiment of the present invention when the mirror frame and the reflective surface of the hook head are connected by a ball head; Figure 6 This is a schematic structural diagram of a hook head provided with an auxiliary reflector in an embodiment of the present invention.

[0038] The present invention provides a medical retractor, in the present invention, the medical retractor includes the following three parts: 1. a handle 1, medical personnel can hold the handle part with their hands to operate the retractor; 2. a connecting rod 2, the connecting rod 2 is connected to the handle 1, the handle 1 and the connecting rod 2 form a structure, the connecting rod 2 is a connecting transition component, and is used to realize the connection between the retractor head 3 and the handle 1, one end of the connecting rod 2 is connected to the handle 1, and the other end of the connecting rod 2 is a mounting end, and the mounting end is a bent rod structure, and the diameter of the connecting rod 2 is relatively small (commonly known as thin), so that the influence of the connecting rod 2 on the field of vision can be reduced during use; 3. a retractor head 3, the retractor head 3 is used to contact with the human body (lip part), so as to pull the local tissue of the human body apart to expand the field of vision, and pull The hook head 3 is arranged at the mounting end of the connecting rod 2. The hook head 3 is a component, and its overall plate structure design is adopted. One side of the hook head 3 (which can be understood as the rear side of the hook head 3, that is, the side facing the handle) is a contact surface for contacting human tissue, and an extended outer edge 4 is arranged on the outer edge of the contact surface to increase the contact area between the contact surface and the human tissue. The other side of the hook head 3 (which can be understood as the front side of the hook head 3, that is, the side facing away from the handle, and during operation, the side can be made to face the diseased part of the human body through the operation of medical personnel) is a reflecting surface, and a main reflecting mirror is arranged on the reflecting surface. The main reflecting mirror can reflect the diseased part of the human body or some parts that are difficult to directly observe according to the operation of the medical personnel.

[0039] In the present invention, there are two connection forms between the connecting rod 2 and the handle 1: 1. The connecting rod 2 and the handle 1 are detachably connected, and the hook head 3 and the handle 1 are an integrated structure; 2. The connecting rod 2 and the handle 1 are detachably connected, and the hook head 3 and the handle 1 are detachably connected.

[0040] In the first embodiment, the connecting rod 2 and the handle 1 are made of medical-grade metal materials, and the connecting rod 2 and the handle 1 are an integrated structure, which can ensure the overall structural strength. In this embodiment, the connecting rod 2 and the handle 1 are relatively thin, and the cross-sectional size ranges from 0.6 cm to 1.0 cm. In order to better hold the handle 1, a rubber sleeve is provided on the handle 1. The rubber sleeve can improve the anti-slip property of the handle 1 and increase the diameter of the handle 1. For example, the cross-sectional diameter of the handle 1 is increased by 2.5 cm-3.0 cm, thereby improving the gripping feeling of the handle 1.

[0041] In the second embodiment, the connecting rod 2 and the handle 1 are of split structure design, and the handle 1 includes multiple handles 1, and the length, diameter and shape of the multiple handles 1 are different. Specifically, the connecting rod 2 and the handle 1 are two independent structures, and the end of the connecting rod 2 used for connecting with the handle 1 is a cylindrical structure, and an external thread is arranged on the outer side thereof, and a threaded hole is arranged on the handle 1, and the connecting rod 2 and the handle 1 are connected by a threaded connection. In addition, the end of the connecting rod 2 used for connecting with the handle 1 can also be a regular polygonal prism structure, and an elastic card ball is arranged on the connecting rod 2, and a socket with a shape matching the end of the connecting rod 2 is arranged on the handle 1, and a card slot is arranged in the socket. After the end of the connecting rod 2 is inserted into the socket, the card ball can be stuck in the card slot, so that the detachable installation between the connecting rod 2 and the handle 1 can also be achieved. In this embodiment, the present invention is also provided with a rubber sleeve on the handle 1 to improve the anti-slip property and the feel of use.

[0042] After the connecting rod 2 and the handle 1 are assembled into one, the overall length range is 15 cm to 20 cm (preferably 18 cm). In order to facilitate length adjustment, the present invention has made structural improvements to the connecting rod 2: the connecting rod 2 is provided with at least two connecting rod units, among all the connecting rod units, one of the connecting rod units is a head end connecting rod unit, which adopts a bent rod structure design to form a mounting end, and the other connecting rod units are long cylindrical structures. The connecting rod units are threadedly connected. After being assembled together, the overall structural strength of the connecting rod 2 can be guaranteed.

[0043] The hook head 3 is the most important structural part of the medical hook provided by the present invention, which is arranged at the mounting end of the connecting rod 2. The hook head 3 contacts the human tissue and stretches the human tissue by pulling. Therefore, the hook head 3 is preferably fixedly connected to the mounting end, so that the hook head 3 and the connecting rod 2 can be kept unchanged during the whole use process. The mounting end of the connecting rod 2 is a curved rod structure, and the hook head 3 is arranged at the mounting end. The front side of the hook head 3 and the axis of the connecting rod 2 have an angle of 130° to 140° (preferably an angle of 135°). The hook head 3 has an internal metal frame, and a medical silicone layer is arranged on its outer side, which can not only improve its comfort in use, but also avoid the sharp structure from causing harm to the human body.

[0044] The back side (i.e., the rear side) of the hook head 3 is used to directly contact the human tissue (lip area), and it has a variety of different structural forms: Structure 1, the back side of the hook head 3 is a planar structure, provided with a medical silicone layer, which is a rectangular plane with a width dimension between 0.8cm and 1.2cm, preferably 1.0cm, and a length dimension between 1.4cm and 1.6cm, preferably 1.5cm. The back side edges and corners of the hook head 3 are all rounded; 2. Structure 2. Based on Structure 1, the present invention provides an extended outer edge 4 on the outer edge of the contact surface, and the extended outer edge 4 is a flexible lip structure (made of medical silicone). The extended outer edge 4 can be set on the wide side of the back side of the hook head 3, or on the long side of the back side of the hook head 3, or set in a circle around the entire hook head 3, through the extended outer edge 4. The outer edge 4 increases the basic area between the contact surface and the human tissue, thereby reducing the unit area pressure on the human tissue; 3. Structure three, the back side of the hook head 3, that is, the contact surface adopts a smooth curved surface structure design, which can be smoothly convex outward, smoothly concave inward, or wavy, and the appropriate "surface" structure can be selected according to different usage scenarios; 4. Structure four, Structure four is mainly optimized and improved based on Structure three, that is, a mounting groove structure is set on the back side of the hook head 3. The present invention is provided with a contact plate 8 on the mounting groove structure on the back side of the hook head 3. The contact plate 8 is made of a harder material, such as a metal plate or a plastic plate, or a harder medical rubber. The contact plate 8 and the mounting groove can be snap-fitted or fixed by bolts (countersunk bolts are selected). The contact plate 8 is detachably connected to the hook head 3, and the back side of the contact plate 8 is the contact surface, which is a smooth curved surface structure. There are multiple contact plates 8, and the contact surface shape of each contact plate 8 is different, so that a suitable contact plate 8 can be selected for use according to different usage scenarios; 5. Structure five. Structure five is improved based on structure four, and an extended outer edge 4 is provided on the contact plate 8, and the extended outer edge 4 covers the entire back side of the hook head 3.

[0045] The thickness of the hook head 3 ranges from 0.4 cm to 0.5 cm, with 0.5 cm being the preferred size. The two end faces of the hook head 3 (the left and right ends and the upper and lower ends, which can also be understood as the four sides of the hook head 3) are auxiliary faces, and an auxiliary reflector 5 is arranged on the auxiliary face. Specifically, the side of the hook head 3 has two structural forms: 1. An arc structure is adopted; 2. A groove structure is arranged, and a metal strip is arranged in the groove structure (the metal strip can be installed in the groove structure by interference fitting, or can be fixed and glued in the groove structure by glue), and the outer side of the metal strip is mirror-treated to form an auxiliary reflector 5 structure, and the outer side of the metal strip is preferably a plane (the plane is mirror-treated), or it can be an arc surface (the arc surface is mirror-treated). In the above second embodiment, a metal strip is arranged on the hook head 3, and the visual range provided by the hook head 3 can be further increased by the mirror treatment of the metal strip. Of course, the present invention can also directly arrange a small mirror in the groove structure as an auxiliary reflector 5.

[0046] For the front side of the hook head 3, the present invention is provided with a main reflector to expand the field of view. Regarding the setting structure of the main reflector, the present invention proposes the following multiple schemes: Scheme 1: a groove structure is provided on the front side of the hook head 3, and the main reflector is directly installed in the groove structure. The main reflector can be clamped in the groove structure (the main reflector is detachably provided on the reflecting surface), or it can be directly fixed in the groove structure (the main reflector is fixedly provided on the reflecting surface), or a piece of metal is provided on the back side of the main reflector, and a strong magnet is provided in the groove structure to achieve magnetic fixation. Please refer to Figure 4d, Scheme 2, the main reflector is provided with a plurality of mirror bodies 6 units, the bottom of the groove structure is designed as a regular multi-ribbed concave structure (equivalent to a part of the structure of a regular multi-ribbed prism hole), and the mirror body 6 units are arranged on each plane of the regular multi-ribbed concave structure. Scheme 3, the main reflector is designed as a component structure, the main reflector includes a mirror body 6 and a frame 7, the mirror body 6 is arranged on the frame 7, the frame 7 is fixedly arranged on the reflecting surface, or the frame 7 is detachably arranged on the reflecting surface. Among them, there is a detachable connection structure or a fixed connection structure between the mirror body 6 and the frame 7. In Scheme 3, the frame 7 is made of medical rubber, and the frame 7 is an integrated structure, which can be arranged on the reflecting surface of the hook head 3 by means of clamping, bolt installation, glue fixing, etc. The frame 7 is molded and manufactured according to customer requirements, so as to change the angle between the mirror body 6 and the reflecting surface. Of course, the present invention can set a layer of clay structure on the back of the frame 7, and medical staff can install and adjust the angle of the mirror body 6 on site. In the embodiment in which the glue structure is provided, the frame 7 needs to be fixed in advance, and the gap between the frame 7 and the hook head 3 is filled with medical glue to avoid leakage of the glue structure. Alternatively, the present invention can provide a ball head structure on the reflective surface of the hook head 3, and a ball head hole is provided on the frame 7, and the ball head hole and the ball head structure are interference fit, so that the frame 7 can be installed on the hook head 3, and the angle of the frame 7 can be adjusted. The present invention can provide one mirror body 6 on the frame 7, or multiple mirror bodies 6. When one mirror body 6 is provided, the mirror body 6 can be provided on the frame 7 by a clamping method, or it can be fixed on the frame 7 by gluing. When multiple mirror bodies 6 are provided, the mirror body 6 is preferably provided on the frame 7 by gluing. When the ball head structure is used for connection, if a groove structure is provided on the hook head 3, the back of the frame 7 is a spherical structure, and the groove structure is a spherical groove, so that the frame 7 can be adjusted at multiple angles around the ball head.

[0047] Furthermore, in the present invention, the mirror body 6 is a plane mirror, a convex mirror or a concave mirror, which can be selected according to the use requirements and the use habits of medical personnel.

[0048] In addition, in one embodiment of the present invention, the handle 1 can be tilted to the left or to the right relative to the main reflector. For the convenience of structural description, it is defined in this embodiment that: the handle 1 and the connecting rod 2 are coaxially arranged, the handle 1 has an axis (such as the dotted line b in Figure 1), and the plane where the main reflector is located has a normal (such as the dotted line a in Figure 1). In the conventional structure, the axis of the handle 1 and the normal of the plane where the main reflector is located are located in the same plane, and the plane is the reference plane (such as the plane where the dotted line a and the dotted line b in Figure 1 intersect). The handle 1 and the connecting rod 2 can be tilted to one side (tilted to the left or right) relative to the main reflector and form an angle of 15° to 30° with the reference plane. The advantage of this improvement is that it is convenient for use in deep tissue areas such as the posterior tooth area. In addition to the above-mentioned tilted setting of the handle 1, when the handle 1 and the connecting rod 2 are coaxially arranged, the axis of the handle 1 can also be set in the reference plane, that is, the handle 1 is not tilted relative to the main reflector.

[0049] As can be seen from the above, the present invention provides a medical retractor. In the present invention, the medical retractor includes: a handle 1; a connecting rod 2 connected to the handle 1, one end of the connecting rod 2 is connected to the handle 1, and the other end of the connecting rod 2 is a mounting end, and the mounting end is a bent rod structure; a retractor head 3, the retractor head 3 is arranged at the mounting end, the retractor head 3 is a plate structure, one side of the retractor head 3 is a contact surface for contacting human tissue, and an extended outer edge 4 is arranged on the outer edge of the contact surface to increase the contact area between the contact surface and the human tissue, and the other side of the retractor head 3 is a reflection surface, and a main reflector is arranged on the reflection surface.

[0050] Through the above structural design, the present invention can not only hook and pull human tissue (lip area), thereby expanding the visible range, but also, the present invention is also provided with a reflector on the hook head 3, and the main reflector can reflect the diseased part of the human body or some parts that are difficult to directly observe according to the manipulation of medical personnel, further expanding the visible range. In addition, the present invention is also provided with an extended outer edge 4, which is used to increase the contact area between the contact surface and the human tissue, reduce the unit area pressure of the hook head 3 on the human tissue, and improve the comfort of the present invention. The present invention solves the problems of single function and low applicability existing in traditional medical retractors.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A medical retractor, characterized in that: include: Handle (1); A connecting rod (2) connected to the handle, one end of the connecting rod is connected to the handle, the other end of the connecting rod is a mounting end, and the mounting end is a bent rod structure; A hook head (3), the hook head is arranged at the mounting end, the hook head is a plate structure, one side of the hook head is a contact surface for contacting human tissue, an extended outer edge (4) is arranged on the outer edge of the contact surface for increasing the contact area between the contact surface and human tissue, and the other side of the hook head is a reflection surface, and a main reflector is arranged on the reflection surface.

2. The medical retractor according to claim 1, characterized in that: The connecting rod and the handle are detachably connected, and the hook head and the handle are an integrated structure; Alternatively, the connecting rod is detachably connected to the handle, and the hook head is detachably connected to the handle.

3. The medical retractor according to claim 1, characterized in that: The main reflector is fixedly arranged on the reflective surface; Alternatively, the main reflector is detachably disposed on the reflective surface.

4. The medical retractor according to claim 1, characterized in that: The two end surfaces of the hook head are auxiliary surfaces, and auxiliary reflectors (5) are arranged on the auxiliary surfaces.

5. The medical retractor according to claim 3, characterized in that: The main reflector comprises a mirror body (6) and a mirror frame (7), wherein the mirror body is arranged on the mirror frame; The frame is fixedly arranged on the reflecting surface, or the frame is detachably arranged on the reflecting surface.

6. The medical retractor according to claim 5, characterized in that: The mirror body is a plane mirror, a convex mirror or a concave mirror.

7. The medical retractor according to claim 2, characterized in that: The connecting rod is threadedly connected to the handle; Alternatively, the connecting rod is clamped on the handle.

8. The medical retractor according to claim 1, characterized in that: The handles include a plurality of handles, and the lengths, diameters and outer shapes of the plurality of handles are different from each other.

9. The medical retractor according to any one of claims 1 to 8, characterized in that: A contact plate (8) is arranged on the back of the hook head, the contact plate is detachably connected to the hook head, the back of the contact plate is the contact surface, and the contact surface is a smooth curved surface structure; The extended outer edge is arranged on the contact plate and is an integral structure with the contact plate.

10. The medical retractor according to claim 1, characterized in that: The handle is coaxially arranged with the connecting rod, and the normal line of the plane where the main reflector is located and the plane where the axis of the handle is located are reference planes; The axis of the handle is located within the reference plane; Alternatively, the handle and the connecting rod are inclined to one side relative to the main reflector and form an angle of 15° to 30° with the reference plane.

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