Combined surgical retractor

Abstract

The utility model provides a combined surgical retractor, which relates to the field of medical instruments and comprises a fixing frame, a retractor component and a bandage component. The drag hook assembly is detachably fixed on the fixed frame; the bandage assembly is detachably fixed to the bottom of the fixed frame. A penetrating opening is formed in the center of the fixing frame. The combined type operation drag hook can solve the problems that in the prior art, a stable relative position relation between the drag hook and a patient cannot be kept, if shaking is generated in the operation process, the drag hook part is separated from a knife edge, the knife edge is shrunk, and therefore the operation process can be affected, and the purpose that the drag hook can stably drag the knife edge is achieved.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a combined surgical retractor. Background Technology

[0002] Combination surgical retractors are commonly used in surgical procedures to adjust the width and angle of the incision retraction.

[0003] For example, Chinese patent application number 201621422026.6 discloses a surgical retractor for hepatobiliary surgery, including a circular support frame. A retractor assembly is provided on the upper part of the circular support frame, and a circular support plate is provided below it. The circular support plate is connected and fixed to the circular support frame through a connecting column. The retractor assembly includes a connecting rod. One end of the connecting rod, which is inside the circular support frame, is provided with a retractor part, and the other end is provided with a micro air pressure pump. A vacuum suction cup is provided below the micro air pressure pump, and a fixing tube is provided between the vacuum suction cup and the micro air pressure pump. The surgical retractor provided by the above patent, by setting up a vacuum suction cup and a micro air pressure pump, can change the angle and position of the retractor part by moving the vacuum suction cup, and generate negative pressure through the micro air pressure pump to fix the suction cup, thereby fixing the retractor part, and thus realizing the adjustment of the incision retraction width and retraction angle.

[0004] However, when using the surgical retractor provided by the aforementioned patent, the circular support frame cannot maintain a stable relative position with the patient. If shaking occurs during surgery, the retractor part will detach from the incision, causing the incision to contract, which will affect the surgical process. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a combined surgical retractor that solves the problem that existing technologies cannot maintain a stable relative position with the patient, and that if shaking occurs during surgery, the retractor may detach from the incision, causing the incision to contract and thus affecting the surgical process. This invention enables the retractor to stably pull open the incision.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] This utility model provides a combined surgical retractor, including a fixing frame, a retractor assembly, and a strap assembly; the retractor assembly is detachably fixed to the fixing frame; the strap assembly is detachably fixed to the bottom of the fixing frame; and a through opening is provided at the center of the fixing frame.

[0008] The combined surgical retractor provided by this utility model preferably includes a fixing frame comprising several fixing rods; the fixing rods are horizontally arranged; all the fixing rods are detachable and fixed at both ends, forming a closed fixing frame; all the fixing rods surround the through opening.

[0009] The combined surgical retractor provided by this utility model is preferably a retractor assembly comprising a plurality of orienters and a plurality of retractors; one orienter and one retractor are detachably fixed together.

[0010] The directional device includes an upper sleeve and a lower sleeve; both the upper sleeve and the lower sleeve are horizontally arranged; the vertical cross-section of both the upper sleeve and the lower sleeve is annular; the bottom sidewall of the upper sleeve is fixed to the top sidewall of the lower sleeve; the top sidewall of the upper sleeve has a first cut-off opening along the extending direction of the upper sleeve; the bottom sidewall of the lower sleeve has a second cut-off opening along the extending direction of the lower sleeve.

[0011] The pull hook includes a pull rod and a hook; the top of the pull rod is fixed to the bottom of the hook; the hook bends downward; the hook is located above the through opening;

[0012] The upper sleeve is fitted onto the pull rod; the upper sleeve and the pull rod form an interference fit; the lower sleeve is fitted onto the fixed rod; the lower sleeve and the fixed rod form an interference fit; the axis of the pull rod is parallel to the plane of the fixed frame.

[0013] The combined surgical retractor provided by this utility model preferably has a square fixing frame.

[0014] When the axis of the upper sleeve forms a 30° angle with the axis of the lower sleeve, the upper sleeve and the lower sleeve constitute a 30° orienter; when the axis of the upper sleeve forms a 45° angle with the axis of the lower sleeve, the upper sleeve and the lower sleeve constitute a 45° orienter; when the axis of the upper sleeve forms a 90° angle with the axis of the lower sleeve, the upper sleeve and the lower sleeve constitute a 90° orienter.

[0015] The hook and the fixing frame can be fixed together by the 30° guide; the hook and the fixing frame can be fixed together by the 45° guide; the hook and the fixing frame can be fixed together by the 90° guide.

[0016] The two fixing rods are fixed together by the 90° orienter.

[0017] The combined surgical retractor provided by this utility model preferably includes a binding assembly comprising several fixing members and several binding straps; one fixing member is detachably fixed to one binding strap; the fixing member includes a fixing sleeve and a fixing plate; the fixing sleeve is horizontally arranged; the vertical cross-section of the fixing sleeve is annular; the top sidewall of the fixing sleeve has a truncated third opening along the extension direction of the fixing sleeve; the bottom sidewall of the fixing sleeve is fixed to the upper surface of the fixing plate; the upper surface of the fixing plate is parallel to the plane of the fixing frame; the lower surface of the fixing plate is detachably fixed to the binding straps; the fixing rod is sleeved inside the fixing sleeve; the fixing rod and the fixing sleeve form an interference fit; the fixing member is offset from the directional device.

[0018] The combined surgical retractor provided by this utility model preferably has Velcro straps on the lower surface of the fixing plate and the upper surface of the strap.

[0019] The combined surgical retractor provided by this utility model preferably has a magnet inside the fixing plate and several iron pieces inside the strap.

[0020] The combined surgical retractor provided by this utility model preferably has two first screw holes on the side wall of the upper sleeve; the two first screw holes are symmetrically arranged according to a vertical plane passing through the axis of the upper sleeve; the height of the center of the first screw hole is the same as the height of the axis of the upper sleeve; a first bolt is fitted in the first screw hole; when the first bolt is tightened in the first screw hole, the guide part of the first bolt is in close contact with the retractor.

[0021] Two second screw holes are provided on the side wall of the lower sleeve; the two second screw holes are symmetrically arranged according to a vertical plane passing through the axis of the lower sleeve; the height of the center of the second screw hole is the same as the height of the axis of the lower sleeve; a second bolt is fitted in the second screw hole; when the second bolt is tightened in the second screw hole, the guide part of the second bolt is in close contact with the fixing rod.

[0022] Two third screw holes are provided on the side wall of the fixed sleeve; the two third screw holes are symmetrically arranged according to a vertical plane passing through the axis of the fixed sleeve; the height of the center of the third screw hole is the same as the height of the axis of the fixed sleeve; a third bolt is fitted in the third screw hole; when the third bolt is tightened in the third screw hole, the guide part of the third bolt is in close contact with the fixed rod.

[0023] The above technical solution has the following advantages or beneficial effects:

[0024] The present invention provides a combined surgical retractor, comprising a fixing frame, a retractor assembly, and a strap assembly; the strap assembly is detachably fixed to the bottom of the fixing frame. When the patient's limbs or torso are bound by the strap assembly, the fixing frame maintains a stable relative position with the patient's surgical site through the strap assembly; furthermore, the strap assembly can be disassembled and replaced, which helps to keep the surgical retractor clean and avoid infection during the operation.

[0025] The fixed frame has a through-hole at the center and is located above the patient's surgical site. Doctors can perform surgery on the patient's surgical site through the through-hole of the fixed frame.

[0026] The retractor assembly is detachably fixed to the fixation frame, and the retractor assembly and the fixation frame can maintain a stable relative position. Because the fixation frame and the patient maintain a stable relative position, the retractor assembly can stably retract the patient's incision site, thereby preventing the patient from shaking during surgery and causing the retractor to detach from the incision site, thus achieving stable retraction of the incision. Furthermore, the retractor assembly can be disassembled and its fixing position changed, thereby adjusting the retraction angle of the incision, thus avoiding multiple adjustments to the position of the fixation frame, making the surgery more convenient for the doctor.

[0027] Since existing technology can only maintain the relative position of the hook part and the circular support frame, but cannot guarantee that the patient and the circular support frame will maintain the relative position, the addition of a strap assembly can maintain the relative position of the patient and the circular support frame, thereby maintaining the relative position of the hook part and the patient's incision. This can prevent the hook part from detaching from the incision and allow the hook part to stably pull the incision open. Attached Figure Description

[0028] The present invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not intentionally drawn to scale; the focus is on illustrating the gist of the invention.

[0029] Figure 1 This is a top view schematic diagram of the combined surgical retractor provided in Embodiment 1 of this utility model.

[0030] Figure 2 This is a three-dimensional structural diagram of the combined surgical retractor provided in Embodiment 1 of this utility model.

[0031] Figure 3 This is a schematic diagram of the 90° directional device in the combined surgical retractor provided in Embodiment 1 of this utility model.

[0032] Figure 4This is a schematic diagram of the structure of the fixing component in the combined surgical retractor provided in Embodiment 1 of this utility model.

[0033] Figure 5 This is a schematic diagram of the structure of the combined surgical hook provided in Embodiment 1 of this utility model, in which the fixing component and the strap are fixed by Velcro.

[0034] Figure 6 This is a schematic diagram of the structure of the combined surgical hook provided in Embodiment 2 of this utility model, in which the fixing component and the strap are fixed by magnetic attraction.

[0035] Figure 7 yes Figure 6 Enlarged diagram of the circled area. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0037] Example 1:

[0038] like Figures 1-2 As shown, Embodiment 1 of this utility model provides a combined surgical retractor, including a fixing frame 1, a retractor assembly 2, and a strap assembly 3; the retractor assembly 2 is detachably fixed to the fixing frame 1; the strap assembly 3 is detachably fixed to the bottom of the fixing frame 1; a through-hole 11 is provided at the center of the fixing frame 1.

[0039] When using the combined surgical retractor provided in Embodiment 1 of this utility model, the patient's surgical site is determined, and the through-hole 11 of the fixing frame 1 is matched with the patient's surgical site. The patient's limbs or torso are bound by the strap assembly 3. For example, if the patient's surgical site is the right arm, the fixing frame 1 is tied to the right arm to keep the fixing frame 1 and the patient's surgical site in a stable relative position. Furthermore, the incision at the through-hole 11 is pulled open by the retractor assembly 2, and the doctor performs the next stage of the surgical procedure from the pulled-open incision at the through-hole 11.

[0040] The combined surgical retractor provided in Embodiment 1 of this utility model includes a fixing frame 1, a retractor assembly 2, and a strap assembly 3. The strap assembly 3 is detachably fixed to the bottom of the fixing frame 1. When the patient's limbs or torso are bound by the strap assembly 3, the fixing frame 1 maintains a stable relative position with the patient's surgical site through the strap assembly 3. Furthermore, the strap assembly 3 can be disassembled and replaced, which helps to keep the surgical retractor clean and avoid infection during the operation.

[0041] The fixed frame 1 has a through-hole 11 at its center. The fixed frame 1 is located above the patient's surgical site, and the doctor can perform surgery on the patient's surgical site through the through-hole 11 of the fixed frame 1.

[0042] The retractor assembly 2 is detachably fixed to the fixation frame 1. The retractor assembly 2 and the fixation frame 1 can maintain a stable relative position. Since the fixation frame 1 and the patient maintain a stable relative position, the retractor assembly 2 can stably pull open the patient's incision site, thereby preventing the patient from shaking during surgery and causing the retractor to detach from the incision site, thus achieving stable retraction of the incision. Furthermore, the retractor assembly 2 can be disassembled and its fixed position changed, thereby adjusting the retraction angle of the incision, thus avoiding multiple adjustments to the position of the fixation frame and making the surgery more convenient for the doctor.

[0043] Since existing technology can only keep the hook part and the circular support frame in a relative position, but cannot guarantee that the patient and the circular support frame are in a relative position, the addition of the strap assembly 3 can keep the patient and the circular support frame in a relative position, thereby keeping the hook part and the patient's incision in a relative position, thus preventing the hook part from detaching from the incision and allowing the hook part to stably pull the incision open.

[0044] like Figures 1-2 As shown, the combined surgical retractor provided in Embodiment 1 of this utility model is preferably designed to be portable, requiring the fixation frame 1 to be combinable. Therefore, the fixation frame 1 includes several fixing rods 12. When the fixing rods 12 are horizontally positioned, all fixing rods 12 are detachable and fixed end-to-end, forming a closed fixation frame 1. The fixation frame 1 composed of the fixing rods 12 is also horizontal. If the strap assembly 3 is tied to the patient's limbs or torso, the fixation frame 1 can be close to the patient's body, facilitating the retractor assembly 2 to open the incision. Furthermore, all the fixing rods 12 form a through-hole 11. The size of the through-hole 11 can be adjusted by moving closer to or further away from the center of the through-hole 11, thus adapting to the size of the patient's surgical site.

[0045] like Figure 2 As shown, the combined surgical retractor provided in Embodiment 1 of this utility model is preferably configured such that, in order to fix the retractor assembly 2 to the fixed frame 1, the retractor assembly 2 includes a plurality of guides 21 and a plurality of retractors 22. The retractors 22 are fixed to the fixed frame 1 by the guides 21, and one guide 21 is detachably fixed to one retractor 22. The retractor 22 includes a pull rod 221 and a hook 222. The top of the pull rod 221 is fixed to the bottom of the hook 222, and the extension and retraction position of the hook 222 is adjusted by pulling the pull rod 221.

[0046] In order to connect the fixing rod 12 and the hook 22 respectively, the orienter 21 includes an upper sleeve 211 and a lower sleeve 212. The upper sleeve 211 and the lower sleeve 212 are both set horizontally, so as to avoid the fixing rod 12 and the hook 22 occupying each other's space after being fixed by the orienter 21, so that the hook 22 can be displaced in the horizontal direction. Furthermore, parallel force application makes it easier to control the force point and the magnitude of the pulling force of the hook 22 to pull open the blade, thereby effectively controlling the size and angle of the blade opening.

[0047] Both the upper sleeve 211 and the lower sleeve 212 have annular vertical sections, allowing the hook 22 to be fitted inside the upper sleeve 211 and the fixing rod 12 to be fitted inside the lower sleeve 212. Furthermore, the bottom sidewall of the upper sleeve 211 is fixed to the top sidewall of the lower sleeve 212, at which point the fixing rod 12 can be fixed relative to the hook 22, i.e., the hook 22 is fixed relative to the fixing frame 1. Even further, the top sidewall of the upper sleeve 211 has a first truncated opening 211 along its extending direction. 1. The upper sleeve 211 is elastic. When the pull rod 221 is sleeved in the upper sleeve 211, the inner wall of the upper sleeve 211 contacts and is squeezed with the outer wall of the pull rod 221. At this time, the first opening 2111 can provide the upper sleeve 211 with an outward expansion tolerance space, so that the pull rod 221 and the upper sleeve 211 can fit tightly together. Similarly, the bottom side wall of the lower sleeve 212 is provided with a cut-off second opening 2121 along the extension direction of the lower sleeve 212, so that the lower sleeve 212 can fit tightly with the fixed rod 12.

[0048] Furthermore, the hook 222 bends downward and is located above the through opening 11, so that the hook 222 can contact the cutting edge.

[0049] More specifically, the upper sleeve 211 is fitted onto the pull rod 221, forming an interference fit. The lower sleeve 212 is fitted onto the fixed rod 12, also forming an interference fit. This allows the fixed rod 12 and the pull rod 221 to maintain a relative position, which in turn allows the fixed frame 1 and the hook 22 to maintain a relative position. When the strap assembly 3 is used to bind the patient's surgical site, the fixed frame 1 maintains a relative position with the patient, at which point the hook 22 can stably pull... The incision is made on the patient's body; furthermore, the axis of the pull rod 221 is parallel to the plane where the fixed frame 1 is located, so that the hook 22 can extend and retract horizontally within the upper sleeve 211, avoiding the fixed rod 12 and the hook 22 from occupying each other's space after being fixed by the orienter 21, and preventing the application of the fixed rod 12 and the hook 22 from being affected; by applying horizontal force to the hook 22, the force point and the magnitude of the pulling force of the hook 22 to open the incision can be controlled, thereby effectively controlling the size and angle of the incision opening.

[0050] like Figure 2As shown, in the combined surgical retractor provided in Embodiment 1 of this utility model, preferably, the fixing frame 1 is square;

[0051] To accommodate the shape of the fixed frame 1 and to adjust the angle at which the hook 22 pulls open the blade on the fixed frame 1, multiple orienters 21 with different angles are required. When the axis of the upper sleeve 211 forms a 30° angle with the axis of the lower sleeve 212, the upper sleeve 211 and the lower sleeve 212 constitute a 30° orienter 41. When the fixing rod 12 is fitted inside the lower sleeve 212 and the pull rod 221 is fitted inside the upper sleeve 211, the angle between the pull rod 221 and the fixing rod 12 it is fixed to is 30°. Similarly, when the axis of the upper sleeve 211 forms a 45° angle with the axis of the lower sleeve 212, the upper sleeve 211 and the lower sleeve 212 constitute a 45° orienter 42. When the axis of the upper sleeve 211 forms a 90° angle with the axis of the lower sleeve 212, the upper sleeve 211 and the lower sleeve 212 constitute a 90° orienter 43.

[0052] The hook 22 can be fixed to the fixation frame 1 by a 30° orienter 41, the hook 22 can be fixed to the fixation frame 1 by a 45° orienter 42, and the hook 22 can be fixed to the fixation frame 1 by a 90° orienter 43. More specifically, by using a combination of orienters 21 at different angles on the square fixation frame 1, the incision on the patient's body can be pulled open from multiple angles, making it easier for doctors to control the direction and position of the incision.

[0053] To construct a square fixed frame 1, two fixed rods 12 can be fixed together by 90° orienters 43. Two sets of fixed rods 12 are set up, each set of fixed rods 12 including two parallel fixed rods 12. The two sets of fixed rods 12 are perpendicular to each other and are stacked on top of each other. The through opening 11 formed by the two sets of fixed rods 12 is also square. Four 90° orienters 43 are used. The two ends of the upper fixed rod 12 are respectively fitted into the upper sleeve 211 of the 90° orienter 43, and the two ends of the lower fixed rod 12 are respectively fitted into the lower sleeve 212 of the 90° orienter 43, thereby realizing the construction of a square fixed frame 1.

[0054] like Figure 2 As shown, the combined surgical retractor provided in Embodiment 1 of this utility model preferably includes a strap assembly 3 comprising a plurality of fixing members 31 and a plurality of straps 32, wherein one fixing member 31 is detachably fixed to one strap 32, and the strap 32 is fixed to the fixing frame 1 through the fixing member 31; further, in order to fix the strap 32 to the fixing frame 1, the fixing member 31 includes a fixing sleeve 311 and a fixing plate 312;

[0055] Similar to the upper sleeve 211, the fixing sleeve 311 is horizontally arranged to facilitate the fixing rod 12 being fitted inside the fixing sleeve 311. The vertical cross-section of the fixing sleeve 311 is annular. When the inner wall of the fixing sleeve 311 contacts the outer wall of the fixing rod 12, the fixing sleeve 311 can be tightly attached to the fixing rod 12, thereby achieving stable fixation between the fixing sleeve 311 and the fixing rod 12. Similar to the upper sleeve 211, the top side wall of the fixing sleeve 311 has a truncated third opening 3111 along the extension direction of the fixing sleeve 311. The fixing sleeve 311 is elastic. When the fixing rod 12 is fitted inside the fixing sleeve 311, the inner wall of the fixing sleeve 311 contacts and is pressed against the outer wall of the fixing rod 12. At this time, the third opening 3111 can provide the fixing sleeve 311 with an outward expansion tolerance space, thereby allowing the fixing rod 12 and the fixing sleeve 311 to fit tightly together.

[0056] The bottom side wall of the fixing sleeve 311 is fixed to the upper plate surface of the fixing plate 312, and the lower plate surface of the fixing plate 312 is detachably fixed to the strap 32. At this time, the strap 32 and the fixing frame 1 can maintain a relative position. When the strap 32 is used to bind the patient's limbs or torso, the patient's body can maintain a relative position with the fixing frame 1, and the hook 22 can maintain a relative position with the fixing frame 1. That is, the hook 22 can stably pull open the patient's incision and prevent the hook 22 from coming off the incision site.

[0057] Furthermore, the upper surface of the fixation plate 312 is parallel to the plane of the fixation frame 1. When the strap 32 is tied to the patient's body, the patient's body is in contact with the lower surface of the fixation plate 312, thereby keeping the patient's body plane relatively parallel to the fixation frame 1, and thus keeping the axis of the pull hook 22 relatively parallel to the patient's body plane. If the axis of the pull hook 22 has a large angle with the patient's body plane, it will increase the difficulty of adjusting the retraction width and retraction angle of the patient's incision by controlling the pull hook 22, and the pull hook 22 will damage the patient's incision area when retracting the incision.

[0058] More specifically, when the fastener 31 is assembled onto the fixed frame 1, the fixing rod 12 is fitted into the fixing sleeve 311, so that the fixing rod 12 and the fixing sleeve 311 form an interference fit, thereby making it impossible for the fastener 31 to easily detach from the fixed frame 1. At this time, the strap 32 is fixed to the fastener 31, which can achieve the effect of fixing the strap 32 to the fixed frame 1.

[0059] Since both the hook 22 and the strap 32 are fixed to the fixed frame 1, in order for both to be fixed to the fixed frame 1, the fastener 31 and the guide 21 need to be staggered.

[0060] Furthermore, since the fixation component 31 is detachably fixed to the fixation frame 1, in order to achieve a better fixation effect between the patient's body and the fixation frame 1, the fixation component 31 can be symmetrically installed on both sides of the square fixation frame 1. The parts of the patient that need to be bound are bound by two straps 32, thereby improving the fixation effect between the patient's body and the fixation frame 1, and thus improving the stability of the pull hook 22 in pulling open the patient's incision.

[0061] like Figure 2 and Figure 5 As shown in Embodiment 1 of this utility model, the combined surgical hook is preferably provided on the lower surface of the fixing plate 312 and the upper surface of the strap 32 when the patient's surgical site is the limbs. Velcro 33 can be provided on the lower surface of the fixing plate 312 and the upper surface of the strap 32. The lower surface of the fixing plate 312 and the strap 32 are fixed together by the Velcro 33. When performing surgery on the patient's limbs, it is necessary to ensure that the patient's limbs are in a sterile environment. For this purpose, a sterile drape needs to be laid on the operating table first, and the strap 32 is a sterile strap 32. The patient's limbs are placed on the sterile drape, so that the patient's limbs can be operated on in a sterile environment.

[0062] like Figures 2-4 As shown, in the combined surgical retractor provided in Embodiment 1 of this utility model, preferably, to further improve the fixing ability of the directional device 21 and the pull rod 22, two first screw holes 2112 are opened on the side wall of the upper sleeve 211; a first bolt is fitted in the first screw hole 2112. When the first bolt is tightened in the first screw hole 2112, the guide part of the first bolt is in close contact with the pull rod 221, and friction is generated between the first bolt and the pull rod 221, preventing the pull rod 221 from displacing along the upper sleeve 211, keeping the hook 222 in a downward bent state, and preventing the hook 222 from being pulled. 2. The tilting effect affects the opening of the blade. Furthermore, the two first screw holes 2112 are symmetrically arranged according to the vertical plane passing through the axis of the upper sleeve 211, so that the pull rod 221 can be fully stressed in the horizontal direction, avoiding the inability to be stably fixed in the upper sleeve 211 due to uneven stress on the pull rod 221. Furthermore, the height of the center of the first screw hole 2112 is the same as the height of the axis of the upper sleeve 211, so that the contact area between the lead-in part of the first bolt and the side wall of the pull rod 221 is maximized, which can make the pull rod 221 more stably fixed in the upper sleeve 211.

[0063] To further improve the fixing ability of the orienter 21 and the fixing rod 12, two second screw holes 2122 are opened on the side wall of the lower sleeve 212. Second bolts are fitted into the second screw holes 2122. When the second bolts are tightened into the second screw holes 2122, the guide portion of the second bolt is in close contact with the fixing rod 12, generating friction between the second bolt and the fixing rod 12. This prevents displacement between the fixing rod 12 and the lower sleeve 212, and also avoids tilting of the orienter 21, which would affect the effectiveness of the hook 22 in pulling open the blade. Furthermore, the two second screw holes 2122 are symmetrically arranged according to the vertical plane passing through the axis of the lower sleeve 212, so that the lower sleeve 212 and the fixing rod 12 are fully stressed in the horizontal direction, thereby improving the fixing effect between the lower sleeve 212 and the fixing rod 12. Furthermore, the height of the center of the second screw hole 2122 is the same as the height of the axis of the lower sleeve 212, thereby maximizing the contact area between the guide part of the second bolt and the side wall of the fixing rod 12, which can make the fixing rod 12 more stably fixed in the lower sleeve 212.

[0064] To further enhance the fixing ability of the fixation member 31 and the fixing rod 12, two third screw holes 3112 are provided on the side wall of the fixing sleeve 311. A third bolt is fitted into each of the third screw holes 3112. When the third bolt is tightened into the third screw hole 3112, the lead-in part of the third bolt is in close contact with the fixing rod 12, generating friction between the third bolt and the fixing rod 12. This prevents the fixing rod 12 from shifting along the fixing sleeve 311, and also avoids the fixation member 31 from tilting, which would affect the fixing effect between the strap 32 and the patient's body. This prevents the fixing frame 1 from interfering with the patient's surgical site. The tilting of the screw hole 3112 affects its ability to open the patient's incision. Furthermore, the two third screw holes 3112 are symmetrically arranged according to the vertical plane passing through the axis of the fixing sleeve 311, so that the fixing sleeve 311 and the fixing rod 12 are fully stressed in the horizontal direction, improving the fixing effect between the fixing sleeve 311 and the fixing rod 12. Furthermore, the height of the center of the third screw hole 3112 is the same as the height of the axis of the fixing sleeve 311, so that the contact area between the lead-in part of the third bolt and the side wall of the fixing rod 12 is maximized, which can make the fixing rod 12 more stably fixed in the fixing sleeve 311.

[0065] Example 2:

[0066] The present invention provides a combined surgical retractor according to embodiment 2, comprising a fixing frame 1, a retractor assembly 2, and a strap assembly 3; the retractor assembly 2 is detachably fixed to the fixing frame 1; the strap assembly 3 is detachably fixed to the bottom of the fixing frame 1; and a through opening 11 is provided at the center of the fixing frame 1.

[0067] When using the combined surgical retractor provided in Embodiment 2 of this utility model, the patient's surgical site is determined, and the through-hole 11 of the fixing frame 1 is matched with the patient's surgical site. The patient's limbs or torso are bound by the strap assembly 3. If the patient's surgical site is the torso, the fixing frame 1 is tied to the torso to keep the fixing frame 1 and the patient's surgical site in a stable relative position. Furthermore, the incision at the through-hole 11 is pulled open by the retractor assembly 2, and the doctor performs the next stage of the surgical procedure from the pulled-open incision at the through-hole 11.

[0068] The combined surgical retractor provided in Embodiment 2 of this utility model includes a fixing frame 1, a retractor assembly 2, and a strap assembly 3. The strap assembly 3 is detachably fixed to the bottom of the fixing frame 1. When the patient's limbs or torso are bound by the strap assembly 3, the fixing frame 1 maintains a stable relative position with the patient's surgical site through the strap assembly 3. Furthermore, the strap assembly 3 can be disassembled and replaced, which helps to keep the surgical retractor clean and avoid infection during the operation.

[0069] The fixed frame 1 has a through-hole 11 at its center. The fixed frame 1 is located above the patient's surgical site, and the doctor can perform surgery on the patient's surgical site through the through-hole 11 of the fixed frame 1.

[0070] The retractor assembly 2 is detachably fixed to the fixation frame 1. The retractor assembly 2 and the fixation frame 1 can maintain a stable relative position. Since the fixation frame 1 and the patient maintain a stable relative position, the retractor assembly 2 can stably pull open the patient's incision site, thereby preventing the patient from shaking during surgery and causing the retractor to detach from the incision site, thus achieving stable retraction of the incision. Furthermore, the retractor assembly 2 can be disassembled and its fixed position changed, thereby adjusting the retraction angle of the incision, thus avoiding multiple adjustments to the position of the fixation frame and making the surgery more convenient for the doctor.

[0071] Since existing technology can only keep the hook part and the circular support frame in a relative position, but cannot guarantee that the patient and the circular support frame are in a relative position, the addition of the strap assembly 3 can keep the patient and the circular support frame in a relative position, thereby keeping the hook part and the patient's incision in a relative position, thus preventing the hook part from detaching from the incision and allowing the hook part to stably pull the incision open.

[0072] The combined surgical retractor provided in Embodiment 2 of this utility model is preferably designed to be portable, requiring the fixation frame 1 to be modular. Therefore, the fixation frame 1 includes several fixing rods 12. When the fixing rods 12 are horizontally positioned, all fixing rods 12 are detachable and fixed end-to-end, forming a closed fixation frame 1. The fixation frame 1 formed by the fixing rods 12 is also horizontal. If the strap assembly 3 is tied to the patient's limbs or torso, the fixation frame 1 can be close to the patient's body, facilitating the retractor assembly 2 to open the incision. Furthermore, all the fixing rods 12 form a through-hole 11. The size of the through-hole 11 can be adjusted by moving closer to or further away from the center of the through-hole 11, thus adapting to the size of the patient's surgical site.

[0073] The combined surgical retractor provided in Embodiment 2 of this utility model is preferably configured such that, in order to fix the retractor assembly 2 to the fixed frame 1, the retractor assembly 2 includes a plurality of guides 21 and a plurality of retractors 22. The retractors 22 are fixed to the fixed frame 1 by the guides 21, and one guide 21 is detachably fixed to one retractor 22. The retractor 22 includes a pull rod 221 and a hook 222. The top of the pull rod 221 is fixed to the bottom of the hook 222, and the extension and retraction position of the hook 222 is adjusted by pulling the pull rod 221.

[0074] In order to connect the fixing rod 12 and the hook 22 respectively, the orienter 21 includes an upper sleeve 211 and a lower sleeve 212. The upper sleeve 211 and the lower sleeve 212 are both set horizontally, so as to avoid the fixing rod 12 and the hook 22 occupying each other's space after being fixed by the orienter 21, so that the hook 22 can be displaced in the horizontal direction. Furthermore, parallel force application makes it easier to control the force point and the magnitude of the pulling force of the hook 22 to pull open the blade, thereby effectively controlling the size and angle of the blade opening.

[0075] Both the upper sleeve 211 and the lower sleeve 212 have annular vertical sections, allowing the hook 22 to be fitted inside the upper sleeve 211 and the fixing rod 12 to be fitted inside the lower sleeve 212. Furthermore, the bottom sidewall of the upper sleeve 211 is fixed to the top sidewall of the lower sleeve 212, at which point the fixing rod 12 can be fixed relative to the hook 22, i.e., the hook 22 is fixed relative to the fixing frame 1. Even further, the top sidewall of the upper sleeve 211 has a first truncated opening 211 along its extending direction. 1. The upper sleeve 211 is elastic. When the pull rod 221 is sleeved in the upper sleeve 211, the inner wall of the upper sleeve 211 contacts and is squeezed with the outer wall of the pull rod 221. At this time, the first opening 2111 can provide the upper sleeve 211 with an outward expansion tolerance space, so that the pull rod 221 and the upper sleeve 211 can fit tightly together. Similarly, the bottom side wall of the lower sleeve 212 is provided with a cut-off second opening 2121 along the extension direction of the lower sleeve 212, so that the lower sleeve 212 can fit tightly with the fixed rod 12.

[0076] Furthermore, the hook 222 bends downward and is located above the through opening 11, so that the hook 222 can contact the cutting edge.

[0077] More specifically, the upper sleeve 211 is fitted onto the pull rod 221, forming an interference fit. The lower sleeve 212 is fitted onto the fixed rod 12, also forming an interference fit. This allows the fixed rod 12 and the pull rod 221 to maintain a relative position, which in turn allows the fixed frame 1 and the hook 22 to maintain a relative position. When the strap assembly 3 is used to bind the patient's surgical site, the fixed frame 1 maintains a relative position with the patient, at which point the hook 22 can stably pull... The incision is made on the patient's body; furthermore, the axis of the pull rod 221 is parallel to the plane where the fixed frame 1 is located, so that the hook 22 can extend and retract horizontally within the upper sleeve 211, avoiding the fixed rod 12 and the hook 22 from occupying each other's space after being fixed by the orienter 21, and preventing the application of the fixed rod 12 and the hook 22 from being affected; by applying horizontal force to the hook 22, the force point and the magnitude of the pulling force of the hook 22 to open the incision can be controlled, thereby effectively controlling the size and angle of the incision opening.

[0078] The combined surgical retractor provided in Embodiment 2 of this utility model preferably has a square fixing frame 1.

[0079] To accommodate the shape of the fixed frame 1 and to adjust the angle at which the hook 22 pulls open the blade on the fixed frame 1, multiple orienters 21 with different angles are required. When the axis of the upper sleeve 211 forms a 30° angle with the axis of the lower sleeve 212, the upper sleeve 211 and the lower sleeve 212 constitute a 30° orienter 41. When the fixing rod 12 is fitted inside the lower sleeve 212 and the pull rod 221 is fitted inside the upper sleeve 211, the angle between the pull rod 221 and the fixing rod 12 it is fixed to is 30°. Similarly, when the axis of the upper sleeve 211 forms a 45° angle with the axis of the lower sleeve 212, the upper sleeve 211 and the lower sleeve 212 constitute a 45° orienter 42. When the axis of the upper sleeve 211 forms a 90° angle with the axis of the lower sleeve 212, the upper sleeve 211 and the lower sleeve 212 constitute a 90° orienter 43.

[0080] The hook 22 can be fixed to the fixation frame 1 by a 30° orienter 41, the hook 22 can be fixed to the fixation frame 1 by a 45° orienter 42, and the hook 22 can be fixed to the fixation frame 1 by a 90° orienter 43. More specifically, by using a combination of orienters 21 at different angles on the square fixation frame 1, the incision on the patient's body can be pulled open from multiple angles, making it easier for doctors to control the direction and position of the incision.

[0081] To construct a square fixed frame 1, two fixed rods 12 can be fixed together by 90° orienters 43. Two sets of fixed rods 12 are set up, each set of fixed rods 12 including two parallel fixed rods 12. The two sets of fixed rods 12 are perpendicular to each other and are stacked on top of each other. The through opening 11 formed by the two sets of fixed rods 12 is also square. Four 90° orienters 43 are used. The two ends of the upper fixed rod 12 are respectively fitted into the upper sleeve 211 of the 90° orienter 43, and the two ends of the lower fixed rod 12 are respectively fitted into the lower sleeve 212 of the 90° orienter 43, thereby realizing the construction of a square fixed frame 1.

[0082] The combined surgical retractor provided in Embodiment 2 of this utility model preferably includes a strap assembly 3 comprising a plurality of fixing members 31 and a plurality of straps 32, wherein one fixing member 31 is detachably fixed to one strap 32, and the strap 32 is fixed to the fixing frame 1 through the fixing member 31; further, in order to fix the strap 32 to the fixing frame 1, the fixing member 31 includes a fixing sleeve 311 and a fixing plate 312;

[0083] Similar to the upper sleeve 211, the fixing sleeve 311 is horizontally arranged to facilitate the fixing rod 12 being fitted inside the fixing sleeve 311. The vertical cross-section of the fixing sleeve 311 is annular. When the inner wall of the fixing sleeve 311 contacts the outer wall of the fixing rod 12, the fixing sleeve 311 can be tightly attached to the fixing rod 12, thereby achieving stable fixation between the fixing sleeve 311 and the fixing rod 12. Similar to the upper sleeve 211, the top side wall of the fixing sleeve 311 has a truncated third opening 3111 along the extension direction of the fixing sleeve 311. The fixing sleeve 311 is elastic. When the fixing rod 12 is fitted inside the fixing sleeve 311, the inner wall of the fixing sleeve 311 contacts and is pressed against the outer wall of the fixing rod 12. At this time, the third opening 3111 can provide the fixing sleeve 311 with an outward expansion tolerance space, thereby allowing the fixing rod 12 and the fixing sleeve 311 to fit tightly together.

[0084] The bottom side wall of the fixing sleeve 311 is fixed to the upper plate surface of the fixing plate 312, and the lower plate surface of the fixing plate 312 is detachably fixed to the strap 32. At this time, the strap 32 and the fixing frame 1 can maintain a relative position. When the strap 32 is used to bind the patient's limbs or torso, the patient's body can maintain a relative position with the fixing frame 1, and the hook 22 can maintain a relative position with the fixing frame 1. That is, the hook 22 can stably pull open the patient's incision and prevent the hook 22 from coming off the incision site.

[0085] Furthermore, the upper surface of the fixation plate 312 is parallel to the plane of the fixation frame 1. When the strap 32 is tied to the patient's body, the patient's body is in contact with the lower surface of the fixation plate 312, thereby keeping the patient's body plane relatively parallel to the fixation frame 1, and thus keeping the axis of the pull hook 22 relatively parallel to the patient's body plane. If the axis of the pull hook 22 has a large angle with the patient's body plane, it will increase the difficulty of adjusting the retraction width and retraction angle of the patient's incision by controlling the pull hook 22, and the pull hook 22 will damage the patient's incision area when retracting the incision.

[0086] More specifically, when the fastener 31 is assembled onto the fixed frame 1, the fixing rod 12 is fitted into the fixing sleeve 311, so that the fixing rod 12 and the fixing sleeve 311 form an interference fit, thereby making it impossible for the fastener 31 to easily detach from the fixed frame 1. At this time, the strap 32 is fixed to the fastener 31, which can achieve the effect of fixing the strap 32 to the fixed frame 1.

[0087] Since both the hook 22 and the strap 32 are fixed to the fixed frame 1, in order for both to be fixed to the fixed frame 1, the fastener 31 and the guide 21 need to be staggered.

[0088] Furthermore, since the fixation component 31 is detachably fixed to the fixation frame 1, in order to achieve a better fixation effect between the patient's body and the fixation frame 1, the fixation component 31 can be symmetrically installed on both sides of the square fixation frame 1. The parts of the patient that need to be bound are bound by two straps 32, thereby improving the fixation effect between the patient's body and the fixation frame 1, and thus improving the stability of the pull hook 22 in pulling open the patient's incision.

[0089] like Figures 6-7 As shown, the combined surgical hook provided in Embodiment 2 of this utility model is preferably provided with a magnet 3121 inside the fixing plate 312 when the patient's surgical site is the torso; a plurality of iron plates 321 are provided inside the strap 32. The lower surface of the fixing plate 312 and the strap 32 are fixed together by magnetic attraction between the magnet 3121 and the iron plates 321. When performing surgery on the patient's torso (such as the abdomen or chest), a sterile surgical drape needs to be laid on the patient's body to ensure that the surgical site on the patient's torso is in a sterile environment, and the binding position of the strap 32 to the patient's torso cannot affect the surgical site. Therefore, the strap 32 will be below the sterile surgical drape. For this reason, the method of using Velcro to fix the strap 32 and the fixing plate 312 as in Embodiment 1 cannot be used. By embedding the magnet 3121 inside the fixing plate 312 and the iron plates 321 inside the strap 32, the strap 32 and the fixing plate 312 can achieve a fixing effect with the sterile surgical drape between them, so that the patient's surgical site can be operated on in a sterile environment.

[0090] The combined surgical retractor provided in Embodiment 2 of this utility model preferably has two first screw holes 2112 on the side wall of the upper sleeve 211 to further improve the fixing ability of the directional device 21 and the pull rod 22. A first bolt is fitted into each first screw hole 2112. When the first bolt is tightened into the first screw hole 2112, the guide portion of the first bolt is in close contact with the pull rod 221, and friction is generated between the first bolt and the pull rod 221, preventing the pull rod 221 from displacing along the upper sleeve 211, keeping the hook 222 in a downward bent state, and preventing the hook 222 from producing friction. The tilting of the screw holes affects the effectiveness of the blade opening. Furthermore, the two first screw holes 2112 are symmetrically arranged according to the vertical plane passing through the axis of the upper sleeve 211, so that the pull rod 221 can be fully stressed in the horizontal direction, avoiding the inability to be stably fixed in the upper sleeve 211 due to uneven stress on the pull rod 221. Furthermore, the height of the center of the first screw hole 2112 is the same as the height of the axis of the upper sleeve 211, so as to maximize the contact area between the lead-in part of the first bolt and the side wall of the pull rod 221, and can fix the pull rod 221 more stably in the upper sleeve 211.

[0091] To further improve the fixing ability of the orienter 21 and the fixing rod 12, two second screw holes 2122 are opened on the side wall of the lower sleeve 212. Second bolts are fitted into the second screw holes 2122. When the second bolts are tightened into the second screw holes 2122, the guide portion of the second bolt is in close contact with the fixing rod 12, generating friction between the second bolt and the fixing rod 12. This prevents displacement between the fixing rod 12 and the lower sleeve 212, and also avoids tilting of the orienter 21, which would affect the effectiveness of the hook 22 in pulling open the blade. Furthermore, the two second screw holes 2122 are symmetrically arranged according to the vertical plane passing through the axis of the lower sleeve 212, so that the lower sleeve 212 and the fixing rod 12 are fully stressed in the horizontal direction, thereby improving the fixing effect between the lower sleeve 212 and the fixing rod 12. Furthermore, the height of the center of the second screw hole 2122 is the same as the height of the axis of the lower sleeve 212, thereby maximizing the contact area between the guide part of the second bolt and the side wall of the fixing rod 12, which can make the fixing rod 12 more stably fixed in the lower sleeve 212.

[0092] To further enhance the fixing ability of the fixation member 31 and the fixing rod 12, two third screw holes 3112 are provided on the side wall of the fixing sleeve 311. A third bolt is fitted into each of the third screw holes 3112. When the third bolt is tightened into the third screw hole 3112, the lead-in part of the third bolt is in close contact with the fixing rod 12, generating friction between the third bolt and the fixing rod 12. This prevents the fixing rod 12 from shifting along the fixing sleeve 311, and also avoids the fixation member 31 from tilting, which would affect the fixing effect between the strap 32 and the patient's body. This prevents the fixing frame 1 from interfering with the patient's surgical site. The tilting of the screw hole 3112 affects its ability to open the patient's incision. Furthermore, the two third screw holes 3112 are symmetrically arranged according to the vertical plane passing through the axis of the fixing sleeve 311, so that the fixing sleeve 311 and the fixing rod 12 are fully stressed in the horizontal direction, improving the fixing effect between the fixing sleeve 311 and the fixing rod 12. Furthermore, the height of the center of the third screw hole 3112 is the same as the height of the axis of the fixing sleeve 311, so that the contact area between the lead-in part of the third bolt and the side wall of the fixing rod 12 is maximized, which can make the fixing rod 12 more stably fixed in the fixing sleeve 311.

[0093] In summary, the combined surgical retractor provided by this utility model can solve the problem that existing technologies cannot maintain a stable relative position with the patient, and that if shaking occurs during surgery, the retractor will detach from the incision, causing the incision to contract and thus affecting the surgical process. This invention enables the retractor to stably pull open the incision.

[0094] Those skilled in the art should understand that variations can be implemented by combining existing technology and the above embodiments, and will not be elaborated here. Such variations do not affect the substantive content of this utility model, and will not be elaborated here.

[0095] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a conventional manner in the art; any possible variations and modifications made by those skilled in the art without departing from the technical solution of this utility model, or equivalent embodiments with equivalent changes, do not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the content of the technical solution of this utility model, shall still fall within the protection scope of the technical solution of this utility model.

Claims

1. A combined surgical retractor, characterized in that, It includes a fixed frame, a hook assembly, and a strap assembly; the hook assembly is detachably fixed to the fixed frame; the strap assembly is detachably fixed to the bottom of the fixed frame; and a through opening is provided at the center of the fixed frame. The fixed frame includes several fixed rods; the fixed rods are horizontally arranged; all the fixed rods are detachable and fixed at both ends, forming a closed fixed frame; all the fixed rods surround the through opening.

2. The combined surgical retractor as described in claim 1, characterized in that, The hook assembly includes a plurality of guides and a plurality of hooks; one guide and one hook are detachably fixed together. The directional device includes an upper sleeve and a lower sleeve; both the upper sleeve and the lower sleeve are horizontally arranged; the vertical cross-section of both the upper sleeve and the lower sleeve is annular. The bottom sidewall of the upper sleeve is fixed to the top sidewall of the lower sleeve; the top sidewall of the upper sleeve has a first cut-off opening along the extending direction of the upper sleeve. The bottom sidewall of the lower sleeve has a cut-off second opening along the extending direction of the lower sleeve; The pull hook includes a pull rod and a hook; the top of the pull rod is fixed to the bottom of the hook; the hook bends downward; the hook is located above the through opening; The upper sleeve is fitted onto the pull rod; the upper sleeve and the pull rod form an interference fit; the lower sleeve is fitted onto the fixed rod; the lower sleeve and the fixed rod form an interference fit; the axis of the pull rod is parallel to the plane of the fixed frame.

3. The combined surgical retractor as described in claim 2, characterized in that, The fixed frame is square; When the axis of the upper sleeve forms a 30° angle with the axis of the lower sleeve, the upper sleeve and the lower sleeve constitute a 30° orienter; when the axis of the upper sleeve forms a 45° angle with the axis of the lower sleeve, the upper sleeve and the lower sleeve constitute a 45° orienter; when the axis of the upper sleeve forms a 90° angle with the axis of the lower sleeve, the upper sleeve and the lower sleeve constitute a 90° orienter. The hook and the fixing frame can be fixed together by the 30° guide; the hook and the fixing frame can be fixed together by the 45° guide; the hook and the fixing frame can be fixed together by the 90° guide. The two fixing rods are fixed together by the 90° orienter.

4. The combined surgical retractor as described in claim 2, characterized in that, The strap assembly includes several fasteners and several straps; one fastener is detachably fixed to one strap; the fastener includes a fixing sleeve and a fixing plate; the fixing sleeve is horizontally positioned; the vertical cross-section of the fixing sleeve is annular; the top sidewall of the fixing sleeve has a truncated third opening along its extension direction; the bottom sidewall of the fixing sleeve is fixed to the upper surface of the fixing plate; the upper surface of the fixing plate is parallel to the plane of the fixing frame; the lower surface of the fixing plate is detachably fixed to the straps; the fixing rod is sleeved inside the fixing sleeve; the fixing rod and the fixing sleeve form an interference fit; the fastener is offset from the directional device.

5. The combined surgical retractor as described in claim 4, characterized in that, Velcro is provided on the lower surface of the fixing plate and the upper surface of the strap.

6. The combined surgical retractor as described in claim 4, characterized in that, The fixing plate contains a magnet; the strap contains several iron pieces.

7. The combined surgical retractor as described in claim 4, characterized in that, Two first screw holes are provided on the side wall of the upper sleeve; the two first screw holes are symmetrically arranged according to a vertical plane passing through the axis of the upper sleeve; the height of the center of the first screw hole is the same as the height of the axis of the upper sleeve; a first bolt is fitted in the first screw hole; when the first bolt is tightened in the first screw hole, the guide part of the first bolt is in close contact with the pull rod. The lower sleeve has two second threaded holes on its side wall; the two second threaded holes are symmetrically arranged according to a vertical plane passing through the axis of the lower sleeve; the height of the center of the second threaded hole is the same as the height of the axis of the lower sleeve; a second bolt is fitted into the second threaded hole; when the second bolt is tightened into the second threaded hole, the lead-in part of the second bolt is in close contact with the fixing rod; the fixed sleeve has two third threaded holes on its side wall; the two third threaded holes are symmetrically arranged according to a vertical plane passing through the axis of the fixed sleeve; the height of the center of the third threaded hole is the same as the height of the axis of the fixed sleeve; a third bolt is fitted into the third threaded hole; when the third bolt is tightened into the third threaded hole, the lead-in part of the third bolt is in close contact with the fixing rod.

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