A surgical retractor assembly

Abstract

The present invention belongs to the technical field of surgical instruments, and provides a surgical retractor assembly. The present invention includes an operating handle portion, a hook body connecting portion, and a retractor working portion. The surgical retractor assembly includes a fixing bracket, the hook body connecting portion includes a first connecting section, the first connecting section is connected to the operating handle portion, the first connecting section and the retractor working portion have an angle, a bracket guide rail is provided in the center of the first connecting section, the fixing bracket can slide in the bracket guide rail, the fixing bracket includes a fixed end close to the retractor working portion, and the fixed end is provided with at least one fixing hole. Instead of additionally setting up interference with surgical operations and replacing retractors to prolong the surgical time, and retracting the surgical area multiple times may cause additional damage to the muscles and nerves in the surgical area; a light source group is provided in the hook body connecting section to provide auxiliary lighting for the area below the fixing bracket, so as to avoid the shadows produced by the fixing bracket and temporary screws from affecting the operator.

Description

Technical Field

[0001] The invention relates to the technical field of surgical instruments, and in particular provides a surgical retractor assembly. Background Art

[0002] Spinal fusion is one of the important ways to treat functional disorders caused by intervertebral disc herniation or spinal stenosis without spondylolisthesis spinal degeneration, that is, to make the original spinal active segment no longer active and grow into a whole. It is usually applied when the stability of the spine is destroyed or correction is required, and internal fixation is required. For example, when the spine undergoes slippage, fracture, functional disorder, deformation, spinal tumor and pseudoarthrosis, pedicle screws are often required to be implanted. Prior art JP5462187B2 A sternal retractor for minimally invasive surgery, the sternal retractor having a blade portion, the blade portion having a first surface with an adapted width for lifting the sternum and a second surface combined with a plurality of selectively controllable individual lighting devices, the blade portion including an incision, the blade portion having a tapered tip for easy insertion through a neck, the neck being configured to stand upright from the blade portion and configured to be attached to one end of the elevator, the retractor, wherein the plurality of individual lighting devices are configured to selectively provide individual lighting to a plurality of areas within a surgical field in a body cavity according to a predetermined surgical sequence. The existing surgical retractor assembly cannot be used for both surgical area muscle retraction fixation and temporary screw fixation during spinal fusion. Replacing the surgical retractor to readjust the retraction position greatly increases the duration of the operation. Multiple retractors during the operation affect postoperative recovery and pose a risk of nerve damage. Setting multiple retractors at the same time affects surgical operations and surgical lighting. The inventor believes that there is much room for improvement in the existing technology. Summary of the invention

[0003] The object of the present invention is to provide a surgical hook assembly that can simultaneously and sequentially complete the functions of muscle retraction fixation and temporary screw fixation in the surgical area. Secondly, the surgical hook assembly can provide auxiliary lighting for new shadows generated in the surgical area due to the fixing bracket and temporary screws; the surgical hook assembly can clean up the blood and a small amount of debris generated in the surgical area. To this end, the present invention provides a surgical hook assembly, including a hook body, the hook body including an operating handle portion, a hook body connecting portion and a hook working portion, the surgical hook assembly also includes a fixing bracket, the hook body connecting portion includes a first connecting section, the first connecting section is connected to the operating handle portion, the first connecting section and the hook working portion have an angle, a bracket guide rail is provided in the center of the first connecting section, the fixing bracket can slide in the bracket guide rail, the fixing bracket includes a fixed end close to the hook working portion, and the fixed end is provided with at least one fixing hole. A fixing bracket is provided on the retractor to avoid setting temporary screws to add or replace the retractor during the operation, instead of additional settings interfering with the surgical operation and replacing the retractor to prolong the operation time. At the same time, multiple retractions of the surgical area may cause additional damage to the muscles and nerves in the surgical area, which is not conducive to postoperative recovery and may even increase the risk of postoperative neurological symptoms; the fixing bracket is connected to the hook body connecting part, and the surgeon can determine the angle and position of the hook body connecting part by adjusting the angle and position of the fixing bracket, so as to avoid the assistant being unable to adjust the retractor position in time due to lack of vision of the surgical area; the fixing bracket is connected to the hook body connecting part by a guide rail, and the fixing bracket is connected to the fixing, and is not affected by blood and debris generated in the surgical area and subsequent surgical operations, so as to avoid displacement or skew of the front fixing due to subsequent surgical operations; the fixing bracket is a detachable sliding structure, and when the fixing bracket is not used during the operation, the retractor assembly will not cast a shadow in the surgical area. At the same time, the fixing bracket can be detached after the operation, which is convenient for cleaning the surgical retractor assembly after the operation.

[0004] Preferably, the retractor working part includes a retracting working section, which is an arc-shaped sheet, and the protrusion of the arc-shaped sheet is located on the side away from the operating handle part, and the thickness of the retracting working section decreases as the distance from the retracting working section to the hook body connection increases. The retracting working section is in direct contact with the muscles in the surgical area, and the use of the arc-shaped sheet can reduce the stimulation of the muscles caused by the retracting work; the thickness of the retracting working section decreases as the distance from the retracting working section to the hook body connection increases, which is conducive to the insertion of the retracting working section into the wound. At the same time, the retracting working section is an arc-shaped sheet, and the thickness and length of the retracting working section inserted into the wound are gradually increased, which can reduce the stimulation of the muscles during insertion, is conducive to postoperative recovery, and reduces the risk of nerve damage that may be caused when the retracting working section reaches the surgical area.

[0005] Preferably, the fixing bracket includes a pushing end away from the working part of the retractor, the operating handle part is provided with a holding part, the pushing end passes through the operating handle part, and the holding part and the pushing end cooperate with each other. Due to the difference in the retraction distance of the retractor, the surgical requirements and the physique of the patient, the surgeon needs to insert temporary screws at different positions away from the retractor, and the assistant can push the fixing bracket while holding the operating handle.

[0006] Preferably, the hook body connection portion further includes a second connection segment, the second connection segment and the first connection segment have an included angle, and the second connection segment and the extension direction of the hook working portion are the same. The second connection segment having an included angle with the first connection segment is used to keep the operating handle away from the surgical area, thereby preventing the assistant operating the hook from interfering with the surgeon's operation.

[0007] Preferably, the hook body connection part is provided with an auxiliary device, which includes a limiting structure and at least one symmetrical light source group, the limiting structure is located in the first connection section, and the light source group is located in the second connection section. Since the bracket guide rail is arranged in the center of the hook body connection part to reduce the connection strength of the hook body connection part, the auxiliary device is arranged on both sides of the hook body connection part to strengthen the structural strength of the hook body connection part; since the use of a fixing bracket to assist in fixing the temporary screw will produce a shadow in the surgical area, the light source group is arranged in the second connection section to provide auxiliary lighting for the area below the fixing bracket to avoid the shadows produced by the fixing bracket and the temporary screws from affecting the operator; since the fixing bracket is located between the symmetrical light source group and the operator, when the operator uses the fixing bracket to assist in fixing the temporary screw, it can avoid being affected by the auxiliary light source below.

[0008] Preferably, the auxiliary device further comprises a suction channel, the inlet of which is located at the second connection section, and the outlet of which is located at the first connection section. The suction channel is provided to clean blood and debris in the surgical area, keep the surgical field clear, and facilitate the operation of the surgeon; the pipelines of the suction channel and the light source group are fixed to the first connection section by a limiting structure to prevent the pipelines of the suction channel and the light source group from interfering with the operation of the surgeon.

[0009] Preferably, the auxiliary device is located on both sides of the fixing bracket, and the auxiliary device is a curved pipe that fits the shape of the hook body connection part. The auxiliary device is located on both sides of the fixing bracket to avoid the fixing bracket, and at the same time, the auxiliary device forms a three-dimensional light source on both sides of the fixing bracket to reduce the shadow area of ​​the surgical area; the auxiliary device fits the hook body connection part, and the pipelines of the suction channel and the light source group are led out from the first connection section of the hook body connection part, which can prevent the pipelines of the suction channel and the light source group from interfering with the surgeon's operation.

[0010] Preferably, the retracting working section is provided with a drainage structure, which is located on the surface of the retracting working section away from the operating handle, and the surface of the retracting working section is provided with at least one capillary groove. The drainage structure is used to autonomously attract blood and debris in the surgical area to the surroundings to avoid stagnation in the surgical area, which can keep the visual field of the surgical area clear in time, and at the same time, avoid the suction channel being too close to the surgical area, which will cause negative pressure to stimulate the surgical area and cause discomfort after surgery.

[0011] The present invention provides a surgical retractor assembly that can simultaneously and sequentially complete the functions of muscle retraction and fixation of the surgical area and temporary screw fixation; the surgical retractor assembly can perform auxiliary lighting and suction cleaning work on the surgical area, and has the following beneficial effects: it avoids the newly added retractor blocking the surgical field and the replacement of the retractor prolonging the operation time, and at the same time, multiple retractions of the surgical area may cause additional damage to the muscles and nerves in the surgical area, which is not conducive to postoperative recovery and even increases the risk of postoperative neurological symptoms; a light source group is arranged in the second connecting section to perform auxiliary lighting on the area below the fixing bracket, so as to avoid the shadows generated by the fixing bracket and the temporary screws affecting the operator; an auxiliary device is arranged at the connecting part of the hook body to strengthen the structural strength of the connecting part of the hook body which is reduced due to the arrangement of the movable fixing bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0013] Figure 1 It is a structural schematic diagram of the present invention;

[0014] Figure 2 It is a structural schematic diagram of the drag hook body of the present invention;

[0015] Figure 3 It is a structural schematic diagram of the fixing bracket of the present invention;

[0016] Figure 4 It is a structural schematic diagram of the operating handle portion of the present invention;

[0017] Figure 5 It is a structural schematic diagram of the hook body connecting portion of the present invention;

[0018] Figure 6 It is a structural schematic diagram of the present invention and the working part of the hook.

[0019] Explanation of the reference numerals: 1 operating handle portion; 101 hook portion; 102 gripping portion; 2 hook body connecting portion; 201 first connecting section; 202 second connecting section; 203 auxiliary device; 204 light source group; 205 bracket guide; 206 suction channel; 3 retractor working portion; 301 drainage structure; 302 pulling working section; 4 fixing bracket; 401 pushing end; 402 fixing end; 403 fixing hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Embodiment 1

[0022] like Figure 1 As shown, a surgical retractor assembly includes an operating handle portion 1, a hook body connecting portion 2 and a retractor working portion 3, the surgical retractor assembly includes a fixing member bracket 4, one end of the hook body connecting portion 2 is connected to the operating handle portion 1, and the other end of the hook body connecting portion 2 is connected to the retractor working portion 3, the hook body connecting portion 2 includes a first connecting segment 201, the first connecting segment 201 is connected to the operating handle portion 1, the first connecting segment 201 and the retractor working portion 3 have an angle, a bracket guide rail 205 is provided in the center of the first connecting segment 201, the fixing member bracket 4 can slide in the bracket guide rail 205, the fixing member bracket 4 includes a fixed end 402 close to the retractor working portion 3, and the fixed end 402 is provided with five fixing holes 403.

[0023] With the above arrangement, a fixing bracket 4 is arranged on the retractor, so as to avoid setting temporary screws to increase or replace the retractor during the operation, avoid the newly added retractor blocking the surgical field of view and prolong the operation time by replacing the retractor, and at the same time, multiple retractions of the surgical area may cause additional damage to the muscles and nerves in the surgical area, which is not conducive to postoperative recovery and even increases the risk of postoperative neurological symptoms; the fixing bracket 4 is connected to the hook body connecting part 2, and the surgeon can determine the angle and position of the hook body connecting part 2 by adjusting the angle and position of the fixing bracket 4, so as to avoid the assistant being unable to adjust the retractor position in time due to lack of surgical field of view; the fixing bracket 4 is connected to the hook body connecting part 2 by a guide rail, and the fixing bracket 4 and the hook body connecting part 2 are ensured to be parallel, and the fixing bracket 4 and the hook body connecting part 2 can be uniformly adjusted to ensure that the fixing bracket 4 is parallel to the surgical area, and the temporary screw can be vertically nailed in; during the temporary screw fixing process, it is necessary to open and expand the hole, and the blood and debris generated at any time during the opening and expanding process will accumulate at the wound to block the surgeon's field of view, and the fixing bracket can keep the opening and expanding process and the subsequent temporary screw position unchanged.

[0024] Combination Figure 2 and Figure 6 As shown, the retractor working portion 3 includes a retraction working segment 302, which is connected to the second connecting segment 292. The retraction working segment 302 is an arc-shaped sheet, and the protrusion of the arc-shaped sheet is located on the side away from the operating handle portion 1. The thickness of the retraction working segment 302 decreases as the distance from the retraction working segment 302 to the hook body connecting portion 2 increases.

[0025] Since the side of the retraction working section 302 close to the operating handle is in direct contact with the muscles in the surgical area, the arc-shaped sheet body is used to reduce the stress when the retraction working section 302 compresses the muscles in the surgical area, and the arc-shaped working section reserves deformation space for the muscles, which can reduce the stimulation and compression of the muscles by the retraction work; the thickness of the retraction working section 302 decreases as the distance from the retraction working section 302 to the hook body connecting part 2 increases, which is conducive to the insertion of the retraction working section 302 into the wound. At the same time, the retraction working section 302 is an arc-shaped sheet body, and the thickness and length of the retraction working section 302 inserted into the wound are gradually increased, so that the wound is gradually expanded to adapt to the insertion of the retraction working section 302 to the specified depth, which can reduce the stimulation of the muscles during insertion and is conducive to postoperative recovery. In addition, the volume of the end of the retraction working section 302 is small, which can facilitate avoiding the nerve roots in the surgical area during insertion, reducing the risk of nerve damage caused by the large volume of the end of the retraction working section 302 when the retraction working section 302 reaches the specified depth. The retraction working section 302 is provided with a drainage structure 301 , which is located on the surface of the retraction working section 302 away from the operating handle portion 1 , and the surface of the retraction working section 302 is provided with at least one capillary groove.

[0026] Through the above-mentioned arrangement, the drainage structure 301 is used to autonomously attract blood and debris in the surgical area to the surroundings to avoid accumulation in the surgical area, which can keep the field of vision in the surgical area clear in time. At the same time, it is prevented that the suction channel 206 is too close to the surgical area, and the negative pressure suction force stimulates the nerve roots in the surgical area, causing postoperative discomfort.

[0027] In this embodiment, the drainage structure is provided with twelve drainage grooves, and the drainage structure also includes a glass slide. Trapezoidal slots are provided on both sides of the capillary grooves, and the upper width of the slots is greater than the lower width of the slots. The glass slides are installed inside the slots and form capillaries with the drainage. Before the operation, the glass slides are inserted into the slots so that the drainage grooves and the glass slides form a capillary structure, which can autonomously attract blood and debris generated during the operation, and avoid the influence of external suction forces such as negative pressure suction on the nerve roots near the operation area. After the operation, the glass slides in the slots are removed, and the drainage grooves can be scrubbed, which is convenient for cleaning the retractor assembly after the operation.

[0028] Combination Figure 1 , Figure 3 and Figure 4As shown, the fixing bracket 4 includes a pushing end 401 away from the retractor working part 3, the operating handle part 1 is provided with a gripping portion 102, the pushing end 401 passes through the operating handle part 1, and the gripping portion 102 cooperates with the pushing end 401. Due to the different retraction distances of the retractors, surgical requirements, and patient physiques, the surgeon needs to insert temporary screws at different positions away from the retractors, and the assistant can push the fixing bracket 4 while holding the operating handle with one hand.

[0029] Combination Figure 1 , Figure 2 and Figure 5 As shown, the hook body connecting portion 2 also includes a second connecting segment 202, which has an angle with the first connecting segment 201, and the second connecting segment 202 extends in the same direction as the retractor working portion 3. The second connecting segment 202 having an angle with the first connecting segment 201 is used to keep the operating handle portion 1 away from the surgical area, thereby preventing the assistant operating the retractor from interfering with the surgeon's operation.

[0030] like Figure 2 As shown, the hook body connection part 2 is provided with an auxiliary device 203, and the auxiliary device 203 includes a limiting structure and at least one symmetrical light source group 204, the limiting structure is located in the first connection section 201, and the light source group 204 is located in the second connection section 202. Since the bracket guide rail 205 is set in the center of the hook body connection part 2 to reduce the connection strength of the hook body connection part 2, the auxiliary device 203 is set in the hook body connection part 2 to strengthen the structural strength of the hook body connection part 2; since the use of the fixing bracket 4 to assist in fixing the temporary screw will produce a shadow in the surgical area, the light source group is set in the second connection section 202 to assist in lighting the area below the fixing bracket 4, so as to avoid the shadow of the fixing bracket 4 and the temporary screw from affecting the operator. Since the fixing bracket itself can slide and is provided with multiple fixing holes, when different fixing holes are used, the projection position and projection range of the fixing bracket 4 and the fixing in the surgical area will change. The use of the light source group 204 that can irradiate at multiple angles can control the position and range of the shadow produced by the fixing bracket 4 and the fixing, so as to avoid the shadow of the fixing bracket 4 and the fixing from affecting the surgical process.

[0031] like Figure 6 As shown, the auxiliary device 203 also includes a suction channel 206, the inlet of the suction channel 206 is located at the second connecting section 202, and the outlet of the suction channel 206 is located at the first connecting section 201. The suction channel 206 is provided to clean the blood and debris in the surgical area, keep the surgical field clear, and facilitate the operation of the operator; the pipelines of the suction channel 206 and the light source group are fixed to the first connecting section 201 by a limiting structure to prevent the pipelines of the suction channel 206 and the light source group from interfering with the operation of the operator.

[0032] like Figure 6As shown, the auxiliary device 203 is located on both sides of the fixing bracket 4, and the auxiliary device 203 is a curved pipe that fits the shape of the hook body connecting part 2. The auxiliary device 203 is located on both sides of the fixing bracket 4 to avoid the fixing bracket 4, and at the same time, the auxiliary device 203 forms a three-dimensional light source on both sides of the fixing bracket 4 to reduce the shadow area of ​​the surgical area; the auxiliary device 203 fits the hook body connecting part 2, and the pipelines of the suction channel 206 and the light source group are led out from the first connecting section 201 of the hook body connecting part 2, which can prevent the pipelines of the suction channel 206 and the light source group from interfering with the operator's operation.

[0033] The working principle of the present invention is: after the operation begins, a small incision is first established in the target area, and the retracting working section 302 is inserted into the incision, and the operating handle part 1 is used to pull apart the soft tissue at the incision, thereby exposing the fixing point of the fixing part, and the fixing part bracket 4 is pushed to the fixing point, and the fixing hole is aligned with the fixing point, which is convenient for subsequent hole opening and hole expansion. During the hole opening and hole expansion process, the blood and debris generated are sucked out by the drainage structure 301 of the retracting working section 302 and the suction channel 206 of the second connecting section 202, so as to avoid soft tissue damage in the surgical area and block the operator's field of vision. In the process of spinal fusion, the fixing part usually used is a pedicle screw. During the fixing process of the fixing part, since the fixing part bracket 4 is connected to the fixing part, the operator of the present invention does not need to pull the operating handle part 1 for a long time, and the fixing part bracket 4 can assist in keeping the fixing part stable, so as to avoid displacement or skew of the front fixing part caused by subsequent surgical operations, which affects the surgical effect and postoperative recovery. In addition, during and after the fixing process of the fixing part, the fixing part, the fixing part bracket 4 and the retractor body will cast shadows in the surgical area. The present invention sets a symmetrical light source group 204 in the second connecting section 202 to illuminate the area below the fixing part bracket 4 at multiple angles, so as to avoid the shadows cast by the fixing part, the fixing part bracket 4 and the retractor body in the surgical area interfering with subsequent surgical operations.

[0034] The present invention provides a surgical retractor assembly that can simultaneously and sequentially complete the functions of muscle retraction and fixation of the surgical area and temporary screw fixation; the surgical retractor assembly can perform auxiliary lighting and suction cleaning work on the surgical area, and has the following beneficial effects: it avoids the newly added retractor blocking the surgical field and the replacement of the retractor prolonging the operation time, and at the same time, multiple retractions of the surgical area may cause additional damage to the muscles and nerves in the surgical area, which is not conducive to postoperative recovery and even increases the risk of postoperative neurological symptoms; a light source group is set in the second connecting section 202 to perform auxiliary lighting on the area below the fixing member bracket 4, so as to avoid the shadows generated by the fixing member bracket 4 and the temporary screws affecting the operator; an auxiliary device 203 is set at the hook body connecting part 2 to strengthen the structural strength of the hook body connecting part 2 which is reduced due to the setting of the movable fixing member bracket 4.

[0035] The above embodiments and / or implementation methods are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any form. Any technical personnel in this field may make slight changes to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as technologies or embodiments that are essentially the same as the present invention.

Claims

1. A surgical retractor assembly, comprising a retractor body, wherein the retractor body comprises an operating handle portion (1), a hook body connecting portion (2) and a retractor working portion (3), characterized in that: The surgical retractor assembly further comprises a fixing member bracket (4), the hook body connecting portion (2) comprising a first connecting section (201), the first connecting section (201) being connected to the operating handle portion (1), the hook body connecting portion (2) being connected to the retractor working portion (3), the first connecting section (201) and the retractor working portion (3) having an included angle, a bracket guide rail being provided at the center of the first connecting section (201), the fixing member bracket (4) being able to slide within the bracket guide rail, the fixing member bracket (4) comprising a fixing end (402) close to the retractor working portion (3), the fixing end (402) being provided with at least one fixing hole (403); The fixing member bracket (4) comprises a pushing end (401) away from the hook working part (3), the operating handle part (1) is provided with a holding part (102), the pushing end (401) passes through the operating handle part (1), and the holding part (102) and the pushing end (401) cooperate with each other.

2. A surgical retractor assembly according to claim 1, characterized in that: The retractor working portion (3) comprises a retraction working section (302), the retraction working section (302) being an arc-shaped sheet, the protrusion of the arc-shaped sheet being located on a side away from the operating handle portion (1), and the thickness of the retraction working section (302) decreasing as the distance from the retraction working section (302) to the hook body connecting portion (2) increases.

3. A surgical retractor assembly according to claim 2, characterized in that: The hook body connecting portion (2) further comprises a second connecting section (202), the second connecting section (202) and the first connecting section (201) having an included angle, and the second connecting section (202) and the hook working portion (3) extending in the same direction.

4. A surgical retractor assembly according to claim 3, characterized in that: The hook body connecting portion (2) is provided with an auxiliary device (203), the auxiliary device (203) comprising a limiting structure and a symmetrical light source group (204), the limiting structure being located in the first connecting section (201), and the light source group (204) being located in the second connecting section (202).

5. A surgical retractor assembly according to claim 4, characterized in that: The auxiliary device (203) further comprises a suction channel (206), wherein the inlet of the suction channel (206) is located at the second connecting section (202), and the outlet of the suction channel (206) is located at the first connecting section (201).

6. A surgical retractor assembly according to claim 4, characterized in that: The auxiliary device (203) is located on both sides of the fixing member bracket (4), and the auxiliary device (203) is a curved pipe that fits the shape of the hook body connecting portion (2).

7. A surgical retractor assembly according to claim 4, characterized in that: The retraction working section (302) is provided with a drainage structure (301), the drainage structure (301) is located on the surface of the retraction working section (302) on a side away from the operating handle portion (1), and the drainage structure (301) comprises at least one drainage groove.

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