Auxiliary retractor device for orthopaedic endoscope

Abstract

The invention relates to the field of surgical operating instruments, and discloses an orthopaedic surgery endoscope auxiliary retractor device which comprises a shell and an inner rod and further comprises a cavity supporting mechanism and a traction mechanism. The cavity supporting mechanism comprises a limiting assembly arranged on the left side of the inner rod, a reset spring a is arranged in the center of the right end of the inner rod, and a plurality of cavity supporting strips are evenly arranged on the peripheral side. The traction mechanism comprises a control assembly arranged on the right side of the inner rod, a motor b is fixedly installed in the right side of the inner rod, multiple telescopic rods b are evenly arranged on the peripheral side of the motor b, and drag hooks are arranged at the outer ends of the telescopic rods b. According to the auxiliary retractor device for the orthopaedic endoscope, a combined working mechanism of the cavity supporting mechanism and the traction mechanism is designed, a stable operation cavity can be formed subcutaneously, multi-point traction and fixation can be carried out on an operation part, the risk of damage to tissues in an operation is effectively reduced, the problem of backward movement of skin is avoided, and the operation efficiency is improved. The cavity building efficiency is improved, and the operation process is optimized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of surgical instruments, in particular to a plastic surgery endoscope-assisted retractor device. BACKGROUND

[0002] In plastic surgery, in order to better expose the surgical site, it is usually necessary to establish a cavity under the skin; this process requires surgical instruments to be able to ensure the operation space while avoiding damage to the surrounding tissue. However, there are some problems in the prior art: Firstly, the prior art often uses a retractor to directly pull the tissue to establish a cavity, which can easily cause local tissue compression damage. In addition, relying solely on the retractor to establish a cavity often requires high stability and precision of the operating space, which can easily lead to difficulty in operation for the surgeon.

[0003] Secondly, the existing retractor design cannot effectively form a uniform cavity structure, increasing the complexity of intraoperative operation, and due to the lack of skin fixation function, the skin is prone to move backward when establishing a cavity, further affecting the efficiency and effectiveness of the operation.

[0004] Therefore, there is an urgent need to design a plastic surgery endoscope-assisted retractor device that can solve the above technical problems. SUMMARY

[0005] In view of the problems mentioned in the background art, the purpose of the present application is to provide a plastic surgery endoscope-assisted retractor device to solve the problems mentioned in the background art.

[0006] In order to achieve the above-mentioned purpose, the present application mainly provides the following technical solutions: A plastic surgery endoscope-assisted retractor device, comprising a shell and an inner rod, further comprising: a cavity supporting mechanism and a traction mechanism; wherein: The cavity supporting mechanism comprises a limiting component arranged on the left side of the inner rod, a reset spring a is arranged at the center of the right end of the inner rod, and a plurality of cavity supporting bars are uniformly arranged on the circumference of the inner rod; The traction mechanism comprises a control component arranged on the right side of the inner rod, a motor b is fixedly installed inside the right side of the inner rod, a plurality of telescopic rods b are uniformly arranged on the circumference of the motor b, and a retractor is arranged at the outer end of the telescopic rod b.

[0007] Further, the limiting component comprises a pressing component arranged on the left side of the inner rod; The pressing component comprises a button a on the outer wall, a supporting spring a is arranged at the lower end of the button a, the other end of the supporting spring a is fixedly connected with a pressing switch a, and the pressing switch a is electrically connected with the driving component.

[0008] Further, the driving assembly comprises a motor a arranged in the inner rod, and telescopic rods a arranged at the upper and lower ends of the motor a, and the telescopic rods a at the two ends of the motor a are fixedly connected with the engaging assembly.

[0009] Further, the engaging assembly comprises a limiting slot b arranged on the outer side wall of the middle section of the inner rod 4, a limiting rod a movably arranged in the limiting slot b, a reverse tooth groove arranged on the outer side wall surface of the limiting rod a, a rod slot arranged in the middle section of the limiting slot b and penetrating through the inner rod, the telescopic rods a at the two ends penetrating through the rod slot and fixedly connected with the outer bottom wall of the limiting rod a, and supporting springs b arranged on the left and right sides and fixedly connected with the limiting rod a and the limiting slot b at the upper and lower ends.

[0010] Further, the limiting block is arranged in the shell and corresponds to the position of the limiting rod a, and a forward clamping tooth is arranged on the outer side wall of the limiting block, and the limiting block is connected with the limiting rod a through the forward clamping tooth and the reverse tooth groove.

[0011] Further, the shell is provided with a button slot and a pull hook slot penetrating through the surface of the shell along the length direction of the shell and corresponding to the positions of the button a and the pull hook, and the shell is uniformly provided with support cavity slots corresponding to the positions of the five support cavity strips on the right outer wall, and the support cavity slots are provided with support cavity holes penetrating through the surface of the shell at the left and right ends.

[0012] Further, the other end of the reset spring a is fixedly connected with the inner side wall of the right end of the shell. The other end of the support cavity strip is extended out of the left end support cavity hole, laid in the support cavity slot, and then inserted into the right end support cavity hole and fixedly connected with the inner side wall of the right end of the shell.

[0013] Further, the control assembly comprises a button b arranged on the right outer wall of the inner rod, a supporting spring c arranged at the lower end of the button b, and a press switch b fixedly connected with the other end of the supporting spring c, and the press switch b is electrically connected with the motor b. The inner wall of the inner rod is provided with a pull hook hole penetrating through the motor b and corresponding to the position of the pull hook, and the telescopic rod b and the pull hook are movably arranged in the pull hook hole.

[0014] Further, three limiting slots a are uniformly arranged on the outer wall of the inner rod along the length direction, and a limiting clamping piece is arranged on the inner wall of the shell and corresponds to the position of the limiting slot a. The left end of the inner rod is provided with a battery.

[0015] Further, the support cavity strip and the pull hook are made of medical stainless steel, and the shell and the inner rod are made of metal materials with high strength, good wear resistance and light weight.

[0016] Compared with the prior art, the present application has the following advantages: Firstly, compared with the existing direct hook pulling method for establishing a cavity, it is easy to cause local tissue compression, which may cause tissue damage or blood circulation disorder. To solve this problem, the orthopedic endoscopic auxiliary retractor device of the application adopts a cavity supporting mechanism, which can form a stable and uniform cavity structure through the uniform expansion of multiple cavity supporting bars, avoiding excessive compression of the tissue by single point pulling, effectively reducing the risk of tissue damage during the operation, and improving the exposure effect of the operation site.

[0017] Secondly, compared with the existing retractor design, most of which are fixed and lack control of skin stability, which can easily cause the skin to move backward during the establishment of the cavity. To solve this problem, the orthopedic endoscopic auxiliary retractor device of the application adopts a traction mechanism, which can accurately fix the skin position through the telescopic retractor structure, effectively avoiding the problem of skin backward movement, thereby improving the efficiency of cavity establishment and further optimizing the operation process.

[0018] The above description is only a summary of the technical solutions of the application. In order to clearly understand the technical means of the application, and to implement the content of the specification, the preferred embodiments of the application are described in detail as follows. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings. Figure 1 It is a perspective view of the orthopedic endoscopic auxiliary retractor device of the application; Figure 2 It is a structural view of the orthopedic endoscopic auxiliary retractor device of the application; Figure 3 It is a structure of the orthopedic endoscopic auxiliary retractor device of the application Figure 2 It is a cavity establishment state); Figure 4 It is a sectional view of the traction mechanism of the application; Figure 5 It is a structural view of the shell inside the application; Figure 6 It is a sectional view of the orthopedic endoscopic auxiliary retractor device of the application (limiting component structure part); Figure 7 It is a perspective view of the orthopedic endoscopic auxiliary retractor device of the application; Figure 6 It is an enlarged view of part A of the application; Figure 8A cross-section of a laparoscopic-assisted retractor device for orthopedic surgery according to the present invention. Figure 2 (Button structure part); Figure 9 For the present invention Figure 8 Enlarged view of section B; Explanation of reference numerals in the attached figures: 1. Housing; 2. Supporting cavity mechanism; 3. Traction mechanism; 4. Inner rod; 5. Pressing assembly; 6. Engaging assembly; 7. Drive assembly; 11. Button slot; 12. Hook slot; 13. Support cavity slot; 14. Limiting clip; 21. Limiting component; 22. Return spring a; 23. Support bar; 31. Control component; 32. Motor b; 33. Telescopic rod b; 34. Hook; 41. Limiting groove a; 42. Limiting groove b; 43. Hook hole; 44. Battery; 131. Support cavity hole; 311. Button b; 312. Support spring c; 313. Press switch b; 211. Button a; 212. Support spring a; 213. Press switch a; 214. Motor a; 215. Telescopic rod a; 216. Rod groove; 217. Limit rod a; 218. Support spring b; 219. Limit block; 2171, Reverse tooth groove; 2191, Forward tooth clamping; Detailed Implementation The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0020] like Figures 1-5 As shown, a laparoscopic-assisted retractor device for orthopedic surgery according to the present invention includes a housing 1 and an inner rod 4, and further includes: The cavity support mechanism 2 and the traction mechanism 3; wherein: The cavity support mechanism 2 includes a limiting component 21 located on the left side of the inner rod 4. The limiting component 21 ensures that the cavity support strip 23 can build and lock the cavity of the required size as needed during use. A return spring a22 is provided at the center of the right end of the inner rod 4. The return spring a22 can provide an outward pushing force to quickly reset the cavity support strip 23 after the operation, reducing the time for removing the device after the operation. Multiple cavity support strips 23 are evenly arranged around the periphery. The traction mechanism 3 comprises a control assembly 31 arranged on the right side of the inner rod 4, which can accurately control the extension and retraction of the hooks 34 through the button b311, so as to quickly fix the skin and avoid skin sliding during the establishment of the cavity. The motor b32 is fixedly arranged inside the right side of the inner rod 4, and a plurality of telescopic rods b33 are uniformly arranged on the periphery of the motor b32. The outer end of the telescopic rod b33 is provided with the hook 34. Under the action of the motor b32, the telescopic rod can quickly extend and retract and uniformly apply force, thereby ensuring the accuracy of the action of the hook 34.

[0021] As a preferred embodiment, the number of cavity supporting strips 23 is 5, and this distribution mode provides stable support force distribution through multi-point support, effectively reduces the compression of the surrounding tissue by single-point support, and improves the establishment effect of the cavity.

[0022] As a preferred embodiment, the number of telescopic rods b33 is 5, and this distribution mode realizes multi-directional fixation of the skin and tissue through multi-point traction, which can effectively prevent the skin and tissue from shifting or retracting during the operation.

[0023] As shown in Figure 8 、 9 in the embodiment, the limiting assembly 21 comprises a pressing assembly 5 arranged on the left side of the inner rod 4. The pressing assembly 5 comprises a button a211 on the outer wall, the surface of the button a211 is designed with anti-slip lines to increase the reliability of operation, and the lower end of the button a211 is provided with a supporting spring a212, and the other end of the supporting spring a212 is fixedly connected with a pressing switch a213. This connection mode can ensure that the assembly is quickly reset when the button a211 is released. The pressing switch a213 is electrically connected with the driving assembly 6, and this connection realizes the start and stop of the motor a214 through the driving assembly 6.

[0024] As shown in Figure 7 in the embodiment, the driving assembly 6 comprises a motor a214 arranged inside the inner rod 4, and telescopic rods a215 are arranged at the upper and lower ends of the motor a214. The telescopic rods a215 at the two ends of the motor a214 are fixedly connected with the meshing assembly 7, and the telescopic rods a215 at the two ends of the motor a214 realize the extension and retraction function of the meshing assembly 7 through the rod groove 216.

[0025] As shown in Figure 6As shown, in this embodiment, the engagement assembly 7 includes a limiting slot b42 on the upper and lower outer side walls of the middle section of the inner rod 4. The limiting slot b42 ensures that the limiting rod a217 can move inwards and outwards, providing a fixed space for the placement of the limiting rod a217. The limiting rod a217 is movably installed in the limiting slot b42, and the outer side wall surface of the limiting rod a217 is provided with a reverse tooth groove 2171, which realizes the engagement function of the limiting rod a217. A rod groove 216 is provided in the middle of the limiting slot b42 and penetrates the inner rod 4. The rod groove 216 provides a space for the placement of the telescopic rod a215. The two ends of the telescopic rod a215 are fixedly connected with the outer bottom wall of the limiting rod a217 through the rod groove 216. The telescopic rod a215 realizes the telescopic function of the limiting rod a217 controlled by the motor a214 through the rod groove 216. The left and right sides are provided with supporting springs b218, which are fixedly connected with the limiting rod a217 and the limiting slot b42 at the upper and lower ends, respectively. The supporting spring b218 ensures that the limiting rod a217 can reset to the initial position when released, further realizing the engagement function with the limiting block 219.

[0026] As shown in Figure 5 , 7 , in this embodiment, the limiting block 219 is provided inside the shell 1 corresponding to the position of the limiting rod a217. The outer side wall of the limiting block 219 is provided with a forward clamping tooth 2191. The limiting block 219 is engagedly connected with the limiting rod a217 through the forward clamping tooth 2191 and the reverse tooth groove 2171. The limiting block 219 provided with the forward clamping tooth 2191 is fixedly installed on the inner side wall of the shell 1, ensuring that it can be engaged with the limiting rod a217 in real time.

[0027] As shown in Figure 1 , 2 , in this embodiment, the shell 1 penetrates the surface of the shell 1 along the length direction of the shell 1 to form a button slot 11 and a pull hook slot 12 corresponding to the positions of the button a211 and the pull hook 34, respectively. The button slot 11 provides sufficient space for the movement of the button, and ensures the stability of the button during movement. The pull hook slot 12 ensures that the pull hook 34 can smoothly extend out of the shell 1 to fix the skin. The shell 1 is uniformly provided with a support cavity slot 13 on the right outer wall corresponding to the positions of the five support cavity strips 23. The support cavity slot 13 is provided with support cavity holes 131 penetrating the surface of the shell 1 at the left and right ends. The support cavity holes 131 enable the support cavity strips 23 to flexibly slide in the support cavity slot 13, and ensure that they can be stably fixed at the target position during use.

[0028] As shown in Figure 2 , 3 , in this embodiment, the other end of the reset spring a22 is fixedly connected with the inner side wall of the right end of the shell 1, ensuring that the inner rod 4 can smoothly reset to the initial position after the button a211 is released after the operation, and then the support cavity strips 23 are retracted into the interior of the shell 1. The other end of the cavity supporting strip 23 is extended by the left end cavity supporting hole 131 and laid in the cavity supporting groove 13, and then the right end cavity supporting hole 131 penetrates and is fixedly connected with the inner side wall of the right end of the shell 1. This connection mode ensures that the cavity supporting strip 23 is placed in a reasonable position before operation, and the cavity supporting strip 23 can be smoothly extruded during use, so as to form a stable cavity structure.

[0029] As shown in Figure 4 , 8 In the embodiment, the control assembly 31 includes a button b311 arranged on the right outer wall of the inner rod 4. The button b311 enables the operator to conveniently control the extension and retraction of the retractor 34. The lower end of the button b311 is provided with a supporting spring c312 for providing a reset function of the button. The other end of the supporting spring c312 is fixedly connected with a press switch b313, which is electrically connected with the motor b32. This connection mode realizes the start and stop of the motor b32 through the control assembly 31, and the supporting spring c312 can quickly reset after the button b311 is released, avoiding the failure of the skin traction operation caused by accidental touch. The inner rod 4 is provided with a retractor hole 43 corresponding to the position of the retractor 34. The retractor hole 43 is designed as a long strip-shaped hole penetrating the outer wall of the inner rod 4, and the telescopic rod b33 and the retractor 34 are movably arranged in the hole. The motor b32 drives the telescopic rod b33 to extend or retract through linear driving, so as to drive the retractor 34 to realize precise fixing and releasing operation.

[0030] As shown in Figure 2 , 5 , 6, in the embodiment, three limiting grooves a41 are uniformly arranged along the length direction of the outer wall of the inner rod 4. The limiting grooves a41 are uniformly arranged along the circumference of the outer wall of the inner rod 4. The inner wall of the shell 1 is provided with a limiting clamping piece 14 corresponding to the position of the limiting grooves a41. The limiting clamping piece 14 can be accommodated and will not interfere with the movement of the inner rod 4, so as to ensure that the inner rod 4 will not deviate during the extension and retraction process, and improve the overall precision of the mechanism. The inner rod 4 is provided with a battery 44 at the left end. The battery 44 provides power support for the motor a214 and the motor b32, and its position is also convenient for quick replacement or maintenance, improving the practicability and convenience of the equipment.

[0031] In the embodiment, the supporting cavity strip 23 and the pull hook 34 are made of medical stainless steel, which has high corrosion resistance and can be in contact with body fluid for a long time during the operation without oxidation reaction, thereby ensuring the safety of the device in the medical environment. The shell 1 and the inner rod 4 are made of metal material with high strength and light weight, the high strength ensures that the device can work stably for a long time under frequent use and friction, and is not easy to wear or age, and at the same time, the light weight makes the whole device more portable, thereby reducing the hand burden of the doctor during the operation.

[0032] The working principle and use process of the technical solution are as follows: in the use process, the doctor first places the orthopedic surgical endoscope auxiliary pull hook 34 device in the surgical incision, adjusts the angle and depth thereof, and makes the device keep appropriate contact with the target tissue, presses the button a211, the supporting spring a212 is compressed under stress, the pressing switch a213 is pushed to start the motor a214, the motor a214 retracts the telescopic rod a215 through the linear driving mechanism, further separates the limiting rod a217 in the limiting assembly 21 and the limiting block 219 in the shell 1, and moves the button a211 to the right end in the button groove 11, under the action of the limiting groove a41 and the limiting clamping piece 14, the inner rod 4 moves to the right stably, the supporting cavity strip 23 is extruded, and is evenly expanded along the supporting cavity groove 13, extends from the supporting cavity hole 131, and supports the operation area, thereby forming a stable operation cavity, the multi-point distribution design of the five supporting cavity strips 23 ensures that the supporting force in the cavity is evenly distributed, thereby avoiding tissue compression damage caused by single-point traction, and after the appropriate cavity size is reached, the button a211 is released, the limiting rod a217 and the limiting block 219 are connected under the action of the forward clamping teeth 2191 and the reverse tooth groove 2171, thereby stabilizing the cavity at a fixed size. Then, the button b311 is pressed to start the control assembly 31, the supporting spring c312 is compressed under stress, the pressing switch b313 is pushed to start the motor b32, the motor b32 drives the telescopic rod b33 to extend outward through the linear driving mechanism, and then drives the pull hook 34 fixedly connected thereto to clamp into the skin to realize traction, thereby effectively avoiding the backward movement of the skin. After the operation is completed, the doctor presses the button b311 to control the motor b32 to move reversely, and the telescopic rod b33 and the pull hook 34 are retracted into the inner rod 4; then, the button a211 is pressed to release the locking of the limiting assembly 21, and the supporting cavity strip 23 is automatically retracted into the inner rod 4 under the action of the reset spring a22 and manual pulling, and after reset, the device can be smoothly removed, and finally, the device is cleaned and disinfected in an all-round way to prepare for the next operation.

[0033] The above describes the application in combination with the embodiments, but the application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the application.

Claims

1. A laparoscopic-assisted retractor device for orthopedic surgery, comprising a housing (1) and an inner rod (4), characterized in that: Also includes: The cavity support mechanism (2) and the traction mechanism (3); wherein: The cavity support mechanism (2) includes a limiting component (21) located on the left side of the inner rod (4), a return spring a (22) located at the center of the right end of the inner rod (4), and multiple cavity support strips (23) evenly arranged around the periphery; The traction mechanism (3) includes a control component (31) located on the right side of the inner rod (4). A motor b (32) is fixedly installed inside the right side of the inner rod (4). Multiple telescopic rods b (33) are evenly arranged around the motor b (32). A hook (34) is provided at the outer end of the telescopic rod b (33).

2. The endoscopic retractor device for orthopedic surgery according to claim 1, characterized in that: The limiting component (21) includes a pressing component (5) located on the left side of the inner rod (4); The pressing component (5) includes a button a (211) on the outer wall. A support spring a (212) is provided at the lower end of the button a (211). The other end of the support spring a (212) is fixedly connected to a pressing switch a (213). The pressing switch a (213) is electrically connected to the driving component (6).

3. The endoscopic retractor device for orthopedic surgery according to claim 2, characterized in that: The drive assembly (6) includes an inner rod (4) with a motor a (214) inside. The motor a (214) has telescopic rods a (215) at both the upper and lower ends. The telescopic rods a (215) at both ends of the motor a (214) are fixedly connected to the engagement assembly (7).

4. The laparoscopic retractor device for orthopedic surgery according to claim 3, characterized in that: The meshing assembly (7) includes a limiting groove b (42) on the upper and lower outer walls of the middle section of the inner rod (4). A limiting rod a (217) is movably installed in the limiting groove b (42). The outer wall surface of the limiting rod a (2171) is provided with a reverse tooth groove. A rod groove (216) is opened through the inner rod (4) in the middle of the limiting groove b (42). The telescopic rods a (215) at both ends pass through the rod groove (216) and are fixedly connected to the outer bottom wall of the limiting rod a (217). Support springs b (218) are provided on the left and right sides. The upper and lower ends of the support springs b (218) are fixedly connected to the limiting rod a (217) and the limiting groove b (42).

5. The endoscopic retractor device for orthopedic surgery according to claim 1, characterized in that: The housing (1) is provided with a limiting block (219) at the position corresponding to the limiting rod a (217). The outer wall of the limiting block (219) is provided with a forward locking tooth (2191). The limiting block (219) is engaged with the limiting rod a (217) through the forward locking tooth (2191) and the reverse tooth groove (2171).

6. The laparoscopic retractor device for orthopedic surgery according to claim 1, characterized in that: The housing (1) is provided with button groove (11) and hook groove (12) along the length of the housing (1) corresponding to the positions of button a (211) and hook (34). On the right side of the outer wall of the housing (1), support grooves (13) are evenly provided corresponding to the positions of the five support strips (23). Support holes (131) are provided at the left and right ends of the support grooves (13) along the surface of the housing (1).

7. The endoscopic retractor device for orthopedic surgery according to claim 1, characterized in that: The other end of the reset spring a (22) is fixedly connected to the inner wall of the right end of the housing (1); The other end of the support strip (23) extends out from the left end support hole (131) and lies flat in the support groove (13), and then passes through the right end support hole (131) and is fixedly connected to the inner wall of the right end of the shell (1).

8. The laparoscopic retractor device for orthopedic surgery according to claim 1, characterized in that: The control component (31) includes a button b (311) located on the outer wall of the right side of the inner rod (4). The lower end of the button b (311) is provided with a support spring c (312). The other end of the support spring c (312) is fixedly connected to a push switch b (313). The push switch b (313) is electrically connected to the motor b (32). The inner rod (4) extends through the outer wall corresponding to the hook (34) to the motor b (32) to form a hook hole (43), and the telescopic rod b (33) and the hook (34) are movably placed inside it.

9. The endoscopic retractor device for orthopedic surgery according to claim 1, characterized in that: The inner rod (4) has three limiting grooves a (41) evenly opened on the outer wall along the length direction, and the inner wall of the shell (1) is provided with a limiting clip (14) corresponding to the limiting groove a (41); A battery (44) is located at the center of the left end of the inner rod (4).

10. The endoscopic retractor device for orthopedic surgery according to claim 1, characterized in that: The cavity support strip (23) and the hook (34) are both made of medical stainless steel, and the shell (1) and the inner rod (4) are both made of metal materials with high strength, good wear resistance and light weight.

Images