Spinal surgery retractor

Abstract

We provide a device for retracting incisions for spinal surgery. [Solution] The retractor for spinal surgery includes a retractor mechanism mounting frame 1, a first retractor mechanism 2, a second retractor mechanism 3, a third retractor mechanism 4, and a fourth retractor mechanism 5. Both ends of the retractor mechanism mounting frame are attached to positioning seats on both sides of the operating table via a first-stage connecting frame 6 and a second-stage connecting frame 7, respectively. The first and second retractor mechanisms have the same structure. By configuring the retractor mechanism mounting frame to consist of a first arc-shaped frame body, a second arc-shaped frame body, a first hinge connecting member, and a second hinge connecting member, it becomes possible to bend the retractor mechanism mounting frame within a certain angle range, and it becomes possible to bring the retractor mechanism mounting frame into better contact with the patient's back, thus avoiding the retractor mechanism being too high, which would make surgery difficult for doctors and nurses.

Description

Technical Field

[0001] The invention of the present application relates to the related technical field of medical devices, specifically to a surgical device for spinal surgery.

Background Art

[0002] During spinal surgery, usually, it is necessary to use a retractor or a surgical device to perform the exposure step in the surgery. As the basic process of exposure in the surgery, the surface skin of the human back is incised, and a retractor or a surgical device is used in the incision to expand the human tissues below the incision, so that the spinal part in the body is in an ideal exposed state, facilitating the surgery by medical staff.

[0003] Chinese Patent with Publication No. CN108201453B discloses a multi-directional surgical device for spinal surgery. According to the solution, it includes a fixed ring and a plurality of surgical assemblies. The surgical assembly includes a surgical flat hook, a vertebral body fixing hook, and a connecting member. The surgical flat hook is in a long strip shape, and a position limiting hole penetrating the surgical flat hook is formed in the length direction. The vertebral body fixing hook includes a threaded head at the front end and an engaging block at the rear end. The vertebral body fixing hook is inserted into the position limiting hole, the engaging block is engaged and abutted against the surgical flat hook, the threaded head protrudes through the positioning hole, the connecting member and the fixed ring are fitted and connected, and the surgical flat hook is connected to the connecting member through a pull rod.

[0004] However, since the fixed ring in the above solution is integral and the back of the human body is non-planar, it cannot fit well and adhere to the back of the human body, so the fixed ring may interfere with the operation of medical staff to a certain extent. In addition, since the fixed ring is of an open type, the positioning stability of the formed fixed ring is likely to have insufficient problems. Therefore, in order to solve the above problems, the present application proposes a surgical device for spinal surgery.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The object of the present invention is to provide a surgical retraction device for spinal surgery that solves the problems raised in the background art described above. [Means for solving the problem]

[0006] To achieve the above objective, the present invention proposes the following technical solution: A retraction device for spinal surgery is Both ends 1 Connection frame and 2nd A retraction mechanism mounting frame is attached to positioning seats on both sides of the operating table via a connecting frame and positioned on the upper side of the patient's back, and a first retraction mechanism is attached to the retraction mechanism mounting frame. A second retractable mechanism is attached to the retractable mechanism mounting frame and has the same structure as the first retractable mechanism, A third opening mechanism is positioned symmetrically to the first opening mechanism, It includes a second opening mechanism and a fourth opening mechanism arranged symmetrically with it, The muscle tissue near the surgical wound on the patient's back is spread outward by the first, second, third, and fourth retraction mechanisms.

[0007] Preferably, the opening mechanism mounting frame includes a first arc-shaped frame body, a second arc-shaped frame body, a first hinge connecting member, and a second hinge connecting member, wherein the first arc-shaped frame body and the second arc-shaped frame body have the same structure, and the first arc-shaped frame body and the second arc-shaped frame body are connected via a first hinge connecting member and a second hinge connecting member, wherein the first hinge connecting member and the second hinge connecting member have the same structure, and both the first hinge connecting member and the second hinge connecting member are made up of a first connecting portion and a second connecting portion, and the first connecting portion and the second connecting portion are rotatably connected via a first hinge connecting shaft.

[0008] Preferably, both the first hinge connecting member and the second hinge connecting member have multiple model numbers, and the length of the first hinge connecting member and the second hinge connecting member with different model numbers is set to gradually increase.

[0009] Preferably, both ends of the first arc-shaped frame body, both ends of the second arc-shaped frame body, and the first connecting portion It is connected to the first arc-shaped frame body or the second arc-shaped frame body. Outer end and second connection part It is connected to the first arc-shaped frame body or the second arc-shaped frame body. The outer edges are all stepped. A difference is made, One end of the first arc-shaped frame body, one end of the second arc-shaped frame body, and the first connecting part It is connected to the first arc-shaped frame body or the second arc-shaped frame body. At the outer end, For connection A slot is formed, For connection The slot is a U-shaped slot, For connection Counterbore bolt holes are formed at the base of the slot, and the other end of the first arc-shaped frame body, the other end of the second arc-shaped frame body, and the second connecting part It is connected to the first arc-shaped frame body or the second arc-shaped frame body. The outer ends of each have a first screw hole formed therein, and the edge positions of the first arc-shaped frame body, the second arc-shaped frame body, and the second connecting part are all aligned with the alignment column. melt The diameter of the counterbore hole is For connection The width of the slot is greater than the width of the first arc-shaped frame body, the second arc-shaped frame body, the first hinge connecting member, and the second hinge connecting member in actual Connected In this case, the alignment column is adjacent to For connection The bolts are secured within the slot, and the adjacent counterbore bolt holes and the first screw holes are positioned to overlap. The adjacent counterbore bolt holes and the first screw holes are aligned and connected via positioning bolts.

[0010] Preferably, the first opening mechanism, the second opening mechanism, the third opening mechanism, and the fourth opening mechanism all include a mounting member, an adjustment rod, 1 The fastening member and the opening portion are combined, and the mounting member comprises a mounting ferrule and 1 The positioning seat and 2nd The positioning seat and the 1 positioning seat and 2nd The positioning seats are all 1 Positioning holes are formed, and the adjusting rod is 1 disposed within the positioning holes, and a tension ring is formed by bending at the outer end.

[0011] Preferably, the mounting ferrule includes a lower ferrule body, an upper ferrule body, and an elastic connection part. The lower ferrule body, the upper ferrule body, and the elastic connection part are integrally formed. At the end openings of the lower ferrule body and the upper ferrule body, 1 a lug plate of 2nd and 1 a lug plate of are integrally formed. On the 2nd lug plate, 2nd threaded holes of are formed. On the 2nd lug plate, 1 mounting holes of are formed. The 1 positioning seat of melt abuts against the side edge of the 2nd lug plate of 2nd and is integrally formed with the side surface of the

[0012] Preferably, the 1 clamping member 1 includes a 1 screw of , a 1 nut of , and a 1 knob of . The 1 screw of , the 1 nut of , and the 1 knob of are integrally formed. When the 1 screw of 2nd actually mounts, the 2nd [[ID=S5]]screw passes through the 1 mounting hole and is screwed into the 1 threaded hole. When the 2nd clamping member is actually tightened, the lower ferrule body and the upper ferrule body embrace the innovation mechanism mounting frame, and the

[0013] Preferably, the innovation part includes a mounting seat, a 1 clamp seat of , and a 2ndThe fastening member and 2nd The clamp base and Third It includes a clamp seat and a flat hook for opening wounds, the mounting seat being welded to the inner end of the adjustment rod, and the mounting seat having a hinge connection seat. melt In contact with, the above 1 The clamp seat is rotatably connected to the hinge connection seat via a second hinge connection shaft, and the mounting seat has 2nd A screw hole is formed, 1 The clamp base 2nd Bolt holes are formed, 2nd The bolt holes are semi-frustoconical holes, and the mounting base and 1 The clamp bases of all 2nd The positioning holes are formed, 2nd On the side wall of the clamp seat 2nd The connecting shaft is integrally molded, 2nd The connecting shaft is 2nd It is placed in the positioning hole, 2nd The connecting shaft 1 The limit ring and 2nd The limit ring is integrally molded, 1 The limit ring and 2nd The distance from the limit ring is 2nd The depth of the positioning hole is the same as the above 2nd The fastening member is, 2nd The screw and 2nd The nut and 2nd Including the knob and the aforementioned 2nd The screw and 2nd The nut and 2nd The knob is molded integrally with the aforementioned 2nd When the fastening member is actually installed, 2nd The screw is 2nd Through the bolt hole 2nd It is screwed into the screw hole, and the 2nd The diameter of the bolt hole is 2nd Larger than the diameter of the screw and 2nd It is smaller than the bottom diameter of the nut.

[0014] Preferably, the above 2nd At the end of the clamp seat 2ndThe hinge connection seat is integrally molded, Third At the end of the clamp seat Third The hinge connection seat is integrally molded, 2nd The hinge connection seat and Third The hinge connection seat is rotatably connected via a third hinge connection shaft, and the retractor hook is provided in an inverted L shape, with the upper end of the retractor hook having Third The connecting shaft is integrally molded, Third At the upper end of the connecting shaft Third The limit ring is integrally molded, 2nd The clamp seat and Third The clamp bases of all Third The positioning holes are formed, Third The connecting shaft is Third It is placed in the positioning hole, 2nd When the fastening member is actually tightened, the mounting seat and 1 The clamp base and 2nd The connecting shaft is sandwiched, and in this case, the 2nd The side wall of the nut is Third It functions to abut against the side surface of the clamp seat, and in this case, 2nd The clamp base and Third The clamp base and Third It clamps onto the connecting shaft.

[0015] Preferably, the above 1 The side wall of the positioning hole 1 The anti-slip pattern is integrally molded, and the side wall of the adjustment rod 2nd The anti-slip pattern is integrally molded, 1 The anti-slip pattern has a semicircular cross-section, and the above 2nd The anti-slip pattern has an annular projection structure with a semicircular cross-section, 1 The anti-slip pattern and 2nd The anti-slip pattern is designed to interlock with the surface. 1 positioning seat and 2nd When the positioning seat and the adjustment rod are sandwiched together, 1 The anti-slip pattern and 2nd The anti-slip pattern interlocks with the aforementioned 2nd The side wall of the positioning hole Third The anti-slip pattern is formed, 2nd On the side wall of the connecting shaft 4th The anti-slip pattern is formed, Third Anti-slip pattern and 4th The anti-slip patterns are all rod-shaped protrusions with a semicircular cross-section. Third Anti-slip pattern and 4th The anti-slip patterns are all provided at equal intervals around the circumference, Third The anti-slip pattern and 4th The anti-slip pattern is designed to fit in with the mounting base and 1 The clamp base and 2nd When the connecting shaft is sandwiched, Third The anti-slip pattern and 4th The anti-slip pattern interlocks with the aforementioned Third The side wall of the positioning hole Fifth The anti-slip pattern is formed, Third On the side wall of the connecting shaft 6th The anti-slip pattern is formed, Fifth Anti-slip pattern and 6th The anti-slip patterns are all rod-shaped protrusions with a semicircular cross-section. Fifth Anti-slip pattern and 6th The anti-slip patterns are all provided at equal intervals around the circumference, Fifth The anti-slip pattern and 6th The anti-slip pattern is designed to interlock with the surface. 2nd The clamp base and Third The clamp base and Third When the connecting shaft is sandwiched, Fifth The anti-slip pattern and 6th The anti-slip pattern interlocks with it.

[0016] Compared to the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. By arranging a spinal surgery retraction device comprising a retraction mechanism mounting frame, a first retraction mechanism, a second retraction mechanism, a third retraction mechanism, and a fourth retraction mechanism, and configuring the retraction mechanism mounting frame to consist of a first arc-shaped frame body, a second arc-shaped frame body, a first hinge connecting member, and a second hinge connecting member, it becomes possible to bend the retraction mechanism mounting frame within a certain angle range, and it becomes possible to bring the retraction mechanism mounting frame more closely into contact with the patient's back, thereby avoiding the retraction mechanism being too high, which would make surgery difficult for doctors and nurses.

[0018] 2. All of these are mounting members, adjustment rods, 1 The fastening member and the opening portion are combined to form a first opening mechanism, a second opening mechanism, a third opening mechanism, and a fourth opening mechanism, and the mounting ferrule and, 1 The positioning seat and 2nd The mounting member is configured to be combined with the positioning seat, and the mounting ferrule is configured to be combined with the lower ferrule body, the upper ferrule body, and the elastic connecting part, 1 By tightening the fastening member, the mounting ferrule can be fixed to the retraction mechanism mounting frame, and the adjustment rod can be positioned, thereby effectively improving the convenience of the retraction device during actual use. [Brief explanation of the drawing]

[0019] [Figure 1] This is a schematic diagram of the structure of the present invention. [Figure 2] This is a schematic diagram of the structure of the mounting frame for the wound retraction mechanism of the present invention. [Figure 3] This is an enlarged schematic diagram showing the structure of part A in Figure 2. [Figure 4] These are schematic diagrams illustrating the structure of the first and second arc-shaped frame bodies of the present invention. [Figure 5] This is a schematic diagram of the first opening mechanism of the present invention. [Figure 6] This is an enlarged schematic diagram showing the structure of part B in Figure 2. [Figure 7] This is a schematic diagram of the internal structure of the mounting member of the present invention. [Figure 8] This is a schematic diagram of the outer structure of the mounting member of the present invention. [Figure 9] This is a schematic diagram of the structure of the first fastening member of the present invention. [Figure 10] This is a schematic diagram of the structure of the adjustment rod of the present invention. [Figure 11] This is an enlarged schematic diagram showing the structure of section C in Figure 10. [Figure 12] This is a schematic diagram of the structure of the first clamp seat of the present invention. [Figure 13] This is a schematic diagram of the structure of the second fastening member of the present invention. [Figure 14] This is a schematic diagram of the structure of the second clamp seat of the present invention. [Figure 15] This is a schematic diagram of the structure of the third clamp seat of the present invention. [Figure 16] This is a schematic diagram of the structure of the flat hook used for wound retraction in this invention. [Figure 17] This is a schematic diagram of the structure of the first hinge connecting member of the present invention. [Figure 18] This is a schematic diagram of the structure of the first connection part of the present invention. [Figure 19] This is a schematic diagram of the structure of the second connection part of the present invention. [Modes for carrying out the invention]

[0020] The following describes the technical proposal in the embodiments of this application clearly and completely, in combination with the accompanying drawings. It is clear that the embodiments described are not all embodiments of this application, but only a selection. All other embodiments that a person skilled in the art could obtain without creative work based on the embodiments of this application are within the scope of protection of this application.

[0021] Referring to Figures 1 to 19, the present invention provides embodiments relating to the following five preferred designs.

[0022] In Example 1, referring to Figures 1 to 4 and Figures 17 to 19, the retraction device for spinal surgery includes a retraction mechanism mounting frame 1, a first retraction mechanism 2, a second retraction mechanism 3, a third retraction mechanism 4, and a fourth retraction mechanism 5, with both ends of the retraction mechanism mounting frame 1 being 1 Connection frame 6 and 2nd The opening mechanism mounting frame 1 is positioned on the upper side of the patient's back and is attached to positioning seats on both sides of the operating table via a connecting frame 7. The first opening mechanism 2 is attached to the opening mechanism mounting frame 1, and the second opening mechanism 3 is attached to the opening mechanism mounting frame 1. The second opening mechanism 3 and the first opening mechanism 2 have the same structure. The third opening mechanism 4 and the first opening mechanism 2 are positioned symmetrically, and the fourth opening mechanism 5 and the second opening mechanism 3 are positioned symmetrically. The muscle tissue near the surgical wound on the patient's back is spread outward by the first opening mechanism 2, the second opening mechanism 3, the third opening mechanism 4, and the fourth opening mechanism 5.

[0023] The wound retraction mechanism mounting frame 1 includes a first arc-shaped frame body 8, a second arc-shaped frame body 9, a first hinge connecting member 10, and a second hinge connecting member 11. The first arc-shaped frame body 8 and the second arc-shaped frame body 9 have the same structure, and are connected via the first hinge connecting member 10 and the second hinge connecting member 11. The first hinge connecting member 10 and the second hinge connecting member 11 both consist of a first connecting portion 12 and a second connecting portion 13, and the first connecting portion 12 and the second connecting portion 13 are connected by a first hinge connection. A spinal surgery retractor is arranged, comprising a retractor mounting frame 1, a first retractor 2, a second retractor 3, a third retractor 4, and a fourth retractor 5, all rotatably connected via an axis 14. By configuring the retractor mounting frame 1 to consist of a first arc-shaped frame body 8, a second arc-shaped frame body 9, a first hinge connecting member 10, and a second hinge connecting member 11, the retractor mounting frame 1 can be bent within a certain angular range, allowing it to be brought into better contact with the patient's back. This avoids the retractor mechanism being too high, which would make surgery difficult for doctors and nurses.

[0024] In Example 2, referring to Figures 3-4 and 17-19, based on Example 1, both the first hinge connecting member 10 and the second hinge connecting member 11 have multiple model numbers, and the length of the first hinge connecting member 10 and the second hinge connecting member 11 of different model numbers is set to gradually increase, making it possible to better fit patients of different body types by using the first hinge connecting member 10 and the second hinge connecting member 11 of different model numbers.

[0025] Both ends of the first arc-shaped frame body 8, both ends of the second arc-shaped frame body 9, and the first connecting portion 12 It is connected to the first arc-shaped frame body 8 or the second arc-shaped frame body 9. Outer end and second connecting portion 13 It is connected to the first arc-shaped frame body 8 or the second arc-shaped frame body 9. The outer edges are all stepped. A difference is created, one end of the first arc-shaped frame body 8, one end of the second arc-shaped frame body 9, and the first connecting portion 12 It is connected to the first arc-shaped frame body 8 or the second arc-shaped frame body 9. At the outer end, For connection Slot 15 is formed, For connection Slot 15 is a U-shaped slot, For connection Counterbore bolt holes 16 are formed at the base of slot 15, and the other end of the first arc-shaped frame body 8, the other end of the second arc-shaped frame body 9, and the second connecting portion 13 It is connected to the first arc-shaped frame body 8 or the second arc-shaped frame body 9. First screw holes 17 are formed at the outer ends of each, and the edge positions of the first arc-shaped frame body 8, the second arc-shaped frame body 9, and the second connecting part 13 are all aligned with the alignment column 18. melt The diameter of the countersunk bolt hole 16 is For connection The width of the slot 15 is greater than the width of the first arc-shaped frame body 8, the second arc-shaped frame body 9, the first hinge connecting member 10, and the second hinge connecting member 11 are actually larger. Connect In that case, the alignment column 18 is adjacent For connection It is engaged within slot 15, and the adjacent counterbore bolt hole 16 and the first screw hole 17 are provided to overlap, and the adjacent counterbore bolt hole 16 and the first screw hole 17 are aligned and connected via positioning bolt 19. For connection A slot 15, a countersunk bolt hole 16, a first screw hole 17, and an alignment column 18 are provided, and the diameter of the countersunk bolt hole 16 is For connection By making it larger than the width of slot 15, connection This ensures stability between structures. connection Furthermore, installation can be made easier.

[0026] In Example 3, referring to Figures 5 to 10, based on Example 2, the first wound opening mechanism 2, the second wound opening mechanism 3, the third wound opening mechanism 4, and the fourth wound opening mechanism 5 all consist of a mounting member 20, an adjustment rod 21, 1 The fastening member 22 and the opening portion 23 are combined, and the mounting member 20 consists of a mounting ferrule 25 and 1 The positioning seat 26 and 2nd Includes a positioning seat 27, 1 positioning seat 26 and 2nd The positioning seat 27 is 1 A positioning hole 34 is formed, and the adjustment rod 21 is 1 The mounting ferrule 25 is positioned within the positioning hole 34, and a tension ring 24 is formed at the outer end by bending. The mounting ferrule 25 includes a lower ferrule body 28, an upper ferrule body 29, and an elastic connecting portion 30. The lower ferrule body 28, the upper ferrule body 29, and the elastic connecting portion 30 are integrally molded, and the end openings of the lower ferrule body 28 and the upper ferrule body 29 are respectively 1 Rug board 3 1 and 2nd The lug plate 32 is integrally molded, 1 The lug board 31 2nd A screw hole 33 is formed, 2nd The lug board 32 2nd Mounting holes are formed, 1 The positioning seat 26 1 On the side edge of the lug board 31 melt They were touched, 2nd positioning seat 27 and 2nd It is integrally molded with the side of the lug plate 32.

[0027] 1 The fastening member 22 is 1 Screw 35 and 1 Nut 36 and 1 Includes 37 snacks, 1 Screw 35 and 1 Nut 36 and 1 The knob 37 is molded as one piece, 1 When the fastening member 22 is actually installed, 1 The screw 35 is 2nd Through the mounting hole 2nd It is screwed into the screw hole 33, 1 When the tightening member 22 is actually tightened, the lower ferrule body 28 and the upper ferrule body 29 embrace the opening mechanism mounting frame 1. 1 positioning seat 26 and 2nd The positioning seat 27 and the adjustment rod 21 are sandwiched together, and both the mounting member 20 and the adjustment rod 21 1The first opening mechanism 2, the second opening mechanism 3, the third opening mechanism 4, and the fourth opening mechanism 5 are configured by combining the fastening member 22 and the opening portion 23, and the mounting ferrule 25, 1 The positioning seat 26 and 2nd The mounting member 20 is configured to be combined with the positioning seat 27, and the mounting ferrule 25 is configured to be combined with the lower ferrule body 28, the upper ferrule body 29, and the elastic connecting part 30, 1 By tightening the fastening member 22, the mounting ferrule 25 can be fixed to the retraction mechanism mounting frame 1, and the adjustment rod 21 can be positioned, thereby effectively improving the convenience of the retraction device during actual use.

[0028] In Example 4, referring to Figures 5-6 and 11-16, based on Example 3, the opening portion 23 is connected to the mounting seat 38, 1 The clamp seat 39 and 2nd The fastening member 40 and 2nd The clamp seat 41 and Third It includes a clamp seat 42 and an open-wound flat hook 43, the mounting seat 38 is welded to the inner end of the adjustment rod 21 and the mounting seat 38 has a hinge connection seat 44 melt They were touched, 1 The clamp seat 39 is rotatably connected to the hinge connection seat 44 via a second hinge connection shaft 45, and the mounting seat 38 has 2nd A screw hole 46 is formed, 1 The clamp seat 39 2nd A bolt hole 47 is formed. 2nd The bolt hole 47 is a semi-frustoconical hole, and the mounting seat 38 and 1 The clamp seat 39 is 2nd A positioning hole 48 is formed, 2nd On the side wall of the clamp seat 41 2nd The connecting shaft 52 is integrally molded, 2nd The connecting shaft 52 is 2nd It is positioned within the positioning hole 48, 2nd The connecting shaft 52 1 Limit ring 54 and 2nd The limit ring 55 is integrally molded, 1 Limit ring 54 and 2nd The distance between the limit ring 55 is 2nd The depth is the same as that of the positioning hole 48. 2nd The fastening member 40 is 2nd Screw 49 and 2nd Nut 50 and 2nd Includes 51 snacks, 2nd Screw 49 and 2nd Nut 50 and 2nd The knob 51 is molded as one piece. 2nd When the fastening member 40 is actually installed, 2nd Screw 49 is 2nd Through bolt hole 47 2nd It is screwed into the screw hole 46, 2nd The diameter of bolt hole 47 is 2nd Larger than the diameter of screw 49 and 2nd It is smaller than the bottom diameter of the nut 50.

[0029] 2nd At the end of the clamp seat 41 2nd The hinge connection seat 56 is integrally molded, Third The end of the clamp seat 42 Third The hinge connection seat 57 is integrally molded, 2nd The hinge connection seat 56 and Third The hinge connection seat 57 is rotatably connected via a third hinge connection shaft 64, and the retractor flat hook 43 is provided in an inverted L shape, and the upper end of the retractor flat hook 43 is Third The connecting shaft 59 is integrally molded, Third At the upper end of the connecting shaft 59 Third The limit ring 60 is integrally molded, 2nd The clamp seat 41 and Third The clamp seat 42 is Third A positioning hole 58 is formed, Third The connecting shaft 59 is Third It is positioned within the positioning hole 58, 2nd When the fastening member 40 is actually tightened, the mounting seat 38 and 1 The clamp seat 39 and 2nd The connecting shaft 52 is sandwiched, and in this case, 2nd The side wall of the nut 50 is Third It functions to abut against the side of the clamp seat 42, and in this case, 2nd The clamp seat 41 and Third The clamp seat 42 and Third The connecting shaft 59 is sandwiched between the mounting base 38 and 1 The clamp seat 39 and 2nd The fastening member 40 and 2nd The clamp seat 41 and Third By configuring the opening portion 23 to consist of a clamp seat 42 and an opening flat hook 43, 2nd This makes it easy to tighten and adjust the fastening member 40 on its own, and to adjust the open-wound flat hook 43 in two axial directions, thereby making the open-wound portion 23 easy and flexible to adjust.

[0030] In Example 5, referring to Figures 10-12 and 14-16, based on Example 4, 1 The side wall of the positioning hole 34 1 The anti-slip pattern is integrally molded, and the side wall of the adjustment rod 21 2nd The anti-slip pattern 61 is integrally molded, 1 The anti-slip pattern has a semicircular cross-section, forming a semi-circular ring structure. 2nd The anti-slip pattern 61 has a semicircular cross-section and annular projection structure. 1 The anti-slip pattern and 2nd The anti-slip pattern 61 is designed to fit in with it. 1 positioning seat 26 and 2nd When the positioning seat 27 and the adjustment rod 21 are sandwiched together, 1 The anti-slip pattern and 2nd The anti-slip pattern 61 interlocks with it, 2nd The side wall of the positioning hole 48 Third The anti-slip pattern is molded into it. 2nd On the side wall of the connecting shaft 52 4th The anti-slip pattern 62 is formed, Third Anti-slip pattern and 4th The anti-slip patterns 62 are all rod-shaped projection structures with a semicircular cross-section. Third Anti-slip pattern and 4thThe anti-slip pattern 62 is provided at equal intervals around the circumference, Third The anti-slip pattern and 4th The anti-slip pattern 62 is designed to fit with the mounting base 38. 1 The clamp seat 39 and 2nd When the connecting shaft 52 is sandwiched, Third The anti-slip pattern and 4th The anti-slip pattern 62 interlocks with it, Third The side wall of the positioning hole 58 Fifth The anti-slip pattern is molded into it. Third On the side wall of the connecting shaft 59 6th The anti-slip pattern 63 is formed, Fifth Anti-slip pattern and 6th The anti-slip patterns 63 are all rod-shaped projection structures with a semicircular cross-section. Fifth Anti-slip pattern and 6th The anti-slip patterns 63 are all provided at equal intervals around the circumference. Fifth The anti-slip pattern and 6th The anti-slip pattern 63 is designed to fit in with it. 2nd The clamp seat 41 and Third The clamp seat 42 and Third When the connecting shaft 59 is sandwiched, Fifth The anti-slip pattern and 6th The anti-slip pattern 63 interlocks with it, 1 Anti-slip pattern, 2nd Anti-slip pattern 61, Third Anti-slip pattern, 4th Anti-slip pattern 62, Fifth The anti-slip pattern, and 6th By providing an anti-slip pattern, the stability of positioning between structures can be effectively improved, thereby enhancing the reliability of the surgery.

[0031] While exemplary specific embodiments of the present application have been described above so that those skilled in the art may understand it, the present application is not limited to these specific embodiments. Any creation utilizing the concept of the present application is protected, insofar as any modifications are limited and determined by the spirit and scope of the present application as described in the appended claims. [Explanation of Symbols]

[0032] 1. Frame for mounting opening mechanism 2. The first opening mechanism 3. The second opening mechanism 4. The third opening mechanism 5. The fourth opening mechanism 6 1 Connection frame 7 2nd Connection frame 8. First arc-shaped frame body 9. Second arc-shaped frame body 10 First hinge connecting member 11. Second hinge connecting member 12 First connection part 13. Second connection section 14. First hinge connection axis 15 For connection slot 16 Counterbore Bolt Holes 17 First screw hole 18 Alignment Posts 19 Positioning bolts 20 Mounting components 21 Adjustable Rod twenty two 1 fastening member 23 Retraction Department 24 Pulling ring 25 Mounting ferrules 26 1 Positioning seat 27 2nd Positioning seat 28 Lower ferrule body 29 Upper ferrule body 30 Elastic connection part 31 1 Rug board 32 2nd Rug board 33 2nd screw holes 34 1 Positioning holes 35 1 screw 36 1 nuts 37 1 snacks 38 Mounting base 39 1 clamp seat 40 2nd fastening member 41 2nd clamp seat 42 Third clamp seat 43. Open wound flat hook 44 Hinge connection seat 45 Second hinge connection axis 46 2nd screw holes 47 2nd bolt holes 48 2nd Positioning holes 49 2nd screw 50 2nd nuts 51 2nd snacks 52 2nd Connection shaft 54 1st limit ring 55 2nd limit ring 56 2nd hinge connection seat 57 3rd hinge connection seat 58 3rd Positioning holes 59 3rd Connection shaft 60 3rd limit ring 61 2nd Anti-slip pattern 62 4th Anti-slip pattern 63 6th Anti-slip pattern 64 Third hinge connection axis

Claims

1. The opening mechanism mounting frame (1) is positioned on the upper side of the patient's back, with both ends attached to positioning seats on both sides of the operating table via the first-stage connecting frame (6) and the second-stage connecting frame (7), respectively. A first retraction mechanism (2) is attached to the retraction mechanism mounting frame (1), A second retraction mechanism (3) is attached to the retraction mechanism mounting frame (1) and has the same structure as the first retraction mechanism (2), A third opening mechanism (4) is arranged symmetrically to the first opening mechanism (2), It includes a second opening mechanism (3) and a fourth opening mechanism (5) arranged symmetrically with respect to the second opening mechanism (3), The muscle tissue near the surgical wound on the patient's back is spread outward by the first retraction mechanism (2), the second retraction mechanism (3), the third retraction mechanism (4), and the fourth retraction mechanism (5). A retractor for spinal surgery characterized by the following features.

2. The opening mechanism mounting frame (1) includes a first arc-shaped frame body (8), a second arc-shaped frame body (9), a first hinge connecting member (10), and a second hinge connecting member (11), wherein the first arc-shaped frame body (8) and the second arc-shaped frame body (9) have the same structure, and the first arc-shaped frame body (8) and the second arc-shaped frame body (9) are connected by the first hinge connecting member (10) and the second hinge The first hinge connecting member (10) and the second hinge connecting member (11) are connected via a hinge connecting member (11), and both the first hinge connecting member (10) and the second hinge connecting member (11) are made up of a combination of a first connecting portion (12) and a second connecting portion (13), and the first connecting portion (12) and the second connecting portion (13) are rotatably connected via a first hinge connecting shaft (14). The surgical retractor for spinal surgery according to feature 1.

3. The first hinge connecting member (10) and the second hinge connecting member (11) each have multiple model numbers, and the length of the first hinge connecting member (10) and the second hinge connecting member (11) with different model numbers is set to gradually increase. The retraction device for spinal surgery according to feature 2.

4. Both ends of the first arc-shaped frame body (8), both ends of the second arc-shaped frame body (9), the outer end of the first connecting part (12), and the outer end of the second connecting part (13) are all configured in a stepped shape, and butt slots (15) are formed at one end of the first arc-shaped frame body (8), one end of the second arc-shaped frame body (9), and the outer end of the first connecting part (12), and the butt slots (15) are U-shaped slots, and countersunk bolt holes (16) are formed at the base of the butt slots (15), and first screw holes (17) are formed at the other end of the first arc-shaped frame body (8), the other end of the second arc-shaped frame body (9), and the outer end of the second connecting part (13), and the first arc-shaped frame The edges of the frame body (8), the second arc-shaped frame body (9), and the second connecting portion (13) are all fixed and welded to the alignment column (18). The diameter of the counterbore bolt hole (16) is larger than the width of the butt slot (15). When the first arc-shaped frame body (8), the second arc-shaped frame body (9), the first hinge connecting member (10), and the second hinge connecting member (11) are actually butted together, the alignment column (18) is engaged within the adjacent butt slot (15). The adjacent counterbore bolt hole (16) and the first screw hole (17) are provided to overlap, and the adjacent counterbore bolt hole (16) and the first screw hole (17) are aligned and connected via a positioning bolt (19). The retraction device for spinal surgery according to feature 3.

5. The first wound opening mechanism (2), the second wound opening mechanism (3), the third wound opening mechanism (4), and the fourth wound opening mechanism (5) are all composed of a mounting member (20), an adjustment rod (21), a first-stage fastening member (22), and a wound opening section (23). The mounting member (20) includes a mounting ferrule (25), a first-stage positioning seat (26), and a second-stage positioning seat (27). Both the first-stage positioning seat (26) and the second-stage positioning seat (27) have a first-stage positioning hole (34) formed therein. The adjustment rod (21) is positioned within the first-stage positioning hole (34), and a tension ring (24) is formed at its outer end by bending. The surgical retractor for spinal surgery according to feature 1.

6. The mounting ferrule (25) includes a lower ferrule body (28), an upper ferrule body (28), and an elastic connecting portion (30). The lower ferrule body (28), the upper ferrule body (29), and the elastic connecting portion (30) are integrally molded. A first-stage lug plate (31) and a second-stage lug plate (32) are integrally molded at the end openings of the lower ferrule body (28) and the upper ferrule body (29), respectively. A second-stage screw hole (33) is formed in the first-stage lug plate (31), and a second-stage mounting hole is formed in the second-stage lug plate (32). The first-stage positioning seat (26) is fixed and welded to the side edge of the first-stage lug plate (31), and the second-stage positioning seat (27) is integrally molded with the side surface of the second-stage lug plate (32). The retractor for spinal surgery according to feature 5.

7. The first-stage fastening member (22) includes a first-stage screw (35), a first-stage nut (36), and a first-stage knob (37), the first-stage screw (35), the first-stage nut (36), and the first-stage knob (37) are integrally molded, and when the first-stage fastening member (22) is actually installed, the first-stage screw (35) passes through the second-stage mounting hole and is screwed into the second-stage screw hole (33), and when the first-stage fastening member (22) is actually tightened, the lower ferrule body (28) and the upper ferrule body (29) embrace the opening mechanism mounting frame (1), and the first-stage positioning seat (26) and the second-stage positioning seat (27) sandwich the adjustment rod (21). The surgical retractor for spinal surgery according to feature 6.

8. The opening portion (23) includes a mounting seat (38), a first-stage clamp seat (39), a second-stage fastening member (40), a second-stage clamp seat (41), a third-stage clamp seat (42), and an opening flat hook (43). The mounting seat (38) is welded to the inner end of the adjustment rod (21), and a hinge connection seat (44) is fixedly welded to the mounting seat (38). The first-stage clamp seat (39) is connected to the hinge connection seat (4) via a second hinge connection shaft (45). 4) is rotatably connected, the mounting seat (38) has a second screw hole (46), the first clamp seat (39) has a second bolt hole (47), the second bolt hole (47) is a semi-frustoconical hole, the mounting seat (38) and the first clamp seat (39) both have a second positioning hole (48), the second connecting shaft (52) is integrally molded into the side wall of the second clamp seat (41), and the second connecting The connecting shaft (52) is positioned in the second positioning hole (48), and the first limit ring (54) and the second limit ring (55) are integrally molded on the second connecting shaft (52), the distance between the first limit ring (54) and the second limit ring (55) is the same as the depth of the second positioning hole (48), and the second fastening member (40) consists of a second screw (49), a second nut (50), and a second knob (51). The second stage screw (49), the second stage nut (50), and the second stage knob (51) are integrally molded, and when the second stage fastening member (40) is actually installed, the second stage screw (49) passes through the second stage bolt hole (47) and is screwed into the second stage threaded hole (46), and the diameter of the second stage bolt hole (47) is larger than the diameter of the second stage screw (49) and smaller than the bottom diameter of the second stage nut (50). The retractor for spinal surgery according to feature 7.

9. A second hinge connection seat (56) is integrally molded to the end of the second clamp seat (41), a third hinge connection seat (57) is integrally molded to the end of the third clamp seat (42), the second hinge connection seat (56) and the third hinge connection seat (57) are rotatably connected via a third hinge connection shaft (64), the opening flat hook (43) is provided in an inverted L shape, a third connection shaft (59) is integrally molded to the upper end of the opening flat hook (43), a third limit ring (60) is integrally molded to the upper end of the third connection shaft (59), and the second clamp seat (41) and the third-stage clamp seat (42) both have a third-stage positioning hole (58) formed therein, and the third-stage connecting shaft (59) is positioned within the third-stage positioning hole (58). When the second-stage fastening member (40) is actually tightened, the mounting seat (38) and the first-stage clamp seat (39) sandwich the second-stage connecting shaft (52), and in this case, the side wall of the second-stage nut (50) functions to abut against the side surface of the third-stage clamp seat (42), and in this case, the second-stage clamp seat (41) and the third-stage clamp seat (42) sandwich the third-stage connecting shaft (59). The retractor for spinal surgery according to feature 8.

10. The side wall of the first-stage positioning hole (34) is integrally molded with a first-stage anti-slip pattern, and the side wall of the adjustment rod (21) is integrally molded with a second-stage anti-slip pattern (61). The first-stage anti-slip pattern has a semicircular cross-section and a semi-circular ring structure, and the second-stage anti-slip pattern (61) has a semicircular cross-section and an annular projection structure. The first-stage anti-slip pattern and the second-stage anti-slip pattern (61) are arranged to fit together, and the first-stage positioning seat (26) and the second-stage positioning seat (27) are connected to the adjustment rod When the rod (21) is inserted, the first anti-slip pattern and the second anti-slip pattern (61) interlock, the third anti-slip pattern is formed on the side wall of the second positioning hole (48), and the fourth anti-slip pattern (62) is formed on the side wall of the second connecting shaft (52). Both the third anti-slip pattern and the fourth anti-slip pattern (62) are rod-shaped projection structures with a semicircular cross-section, and both the third anti-slip pattern and the fourth anti-slip pattern (62) are equally spaced in the circumferential direction. A layer is provided around the edge, and the third and fourth anti-slip patterns (62) are fitted together. When the mounting seat (38) and the first clamp seat (39) sandwich the second connecting shaft (52), the third and fourth anti-slip patterns (62) interlock, and the fifth anti-slip pattern is formed on the side wall of the third positioning hole (58), and the sixth anti-slip pattern (63) is formed on the side wall of the third connecting shaft (59), and the fifth anti-slip pattern Both the pattern and the sixth anti-slip pattern (63) are rod-shaped projection structures with a semicircular cross-section. Both the fifth anti-slip pattern and the sixth anti-slip pattern (63) are provided at equal intervals around the circumference. The fifth anti-slip pattern and the sixth anti-slip pattern (63) are designed to fit together, and when the second clamp seat (41) and the third clamp seat (42) clamp the third connecting shaft (59), the fifth anti-slip pattern and the sixth anti-slip pattern (63) interlock. The retraction device for spinal surgery according to feature 9.

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