A cranial retractor

Abstract

The utility model relates to the technical field of surgical operation especially relates to a brain retractor, including, two fixed mechanism, including fixed ring, be located on the sliding part of fixed ring, two connecting mechanisms, including the connecting plate between two fixed rings, be located on the connecting plate, and with the two connecting parts of fixed ring cooperation, pulling mechanism, including the pulling block of fixed ring side wall, be located on the pulling part of pulling block, retraction mechanism, including the retraction block of fixed ring outside wall, be located on the fixed part and retraction part of retraction block, this brain retractor, through the position determination of operation the angle between two fixed rings, rotates one fixed ring and tight first nut, through the good fixed ring of external device fixation, sliding pulling block and retraction block to appropriate position, when operating, scalp pull hook fixed scalp after opening, will its other end rubber band hang on the bent hook screw, again by pulling rod and brain pressure plate operation.

Description

Technical Field

[0001] This application relates to the technical field of surgical procedures, and more particularly to a cranial retractor. Background Technology

[0002] With the continuous progress and innovation in the field of neurosurgery, the design of surgical incisions in current neurosurgical procedures is becoming increasingly sophisticated in order to more accurately and effectively expose lesions, often employing curved or straight incisions. Especially in surgical procedures involving frontotemporal-parietal incisions and brow bone approaches, scalp retraction plays an irreplaceable and crucial role, significantly impacting the full exposure of the surgical field and the smooth execution of the surgery.

[0003] Currently, the most common method for scalp retraction in neurosurgery is the traditional scalp retractor, which has a spring and a metal clip at the end with a loop. When using it, one end of the hook is pulled back to the scalp, and the other end of the clip is fixed to the tray to expose the surgical field. Alternatively, a rubber band retractor can be used to directly clamp and fix it to the surgical drape.

[0004] This type of cranial retractor has a limited traction angle, and its effectiveness may decrease as the surgical drape shifts, leading to insufficient exposure of the surgical field and even tearing of the drape, resulting in contamination of the sterile operating table. Therefore, establishing a safe and effective surgical retraction method is crucial. Utility Model Content

[0005] In view of the aforementioned problems that existing cranial retractors are not efficient and stable enough during traction and are difficult to fully expose the surgical field, this application is proposed.

[0006] Therefore, the purpose of this invention is to provide a cranial retractor that improves the stability of scalp traction and fully exposes the surgical field.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: including,

[0008] Two fixing mechanisms, including a fixing ring and a sliding part disposed on the fixing ring;

[0009] Two connecting mechanisms, including a connecting plate disposed between the two fixed rings, and two connecting portions disposed on the connecting plate and cooperating with the fixed rings;

[0010] The traction mechanism includes a plurality of traction blocks slidably disposed on the side wall of the fixed ring, and traction parts disposed on the traction blocks;

[0011] The pulling mechanism includes a plurality of pulling blocks slidably disposed on the outer side wall of the fixed ring, a fixing part disposed on the pulling blocks, and a pulling part disposed on the pulling blocks;

[0012] The two fixed rings are detachably connected by the connecting mechanism, and the pulling block and the pulling open block are slidably connected to the fixed rings through the sliding part.

[0013] In a preferred embodiment of the cranial retractor of this utility model, the sliding part includes a traction groove disposed on the side wall of the fixing ring and a retraction groove disposed on the outer side wall of the fixing ring, wherein the longitudinal section of both the traction groove and the retraction groove is "T" shaped.

[0014] In a preferred embodiment of the cranial retractor of this utility model, the connecting part includes a first screw fixedly disposed on the side wall of the fixing ring, and a first nut disposed on the first screw and threadedly connected thereto.

[0015] In a preferred embodiment of the cranial retractor of this utility model, one end of the connecting plate is fixedly connected to one of the first screws, and the other end is connected to another first screw through and rotatably.

[0016] In a preferred embodiment of the cranial retractor of this utility model, the two fixing rings form a circle, and the two connecting mechanisms are respectively disposed on the inner and outer sides of the circle.

[0017] In a preferred embodiment of the cranial retractor of this utility model, the traction part includes a second screw rod that is threadedly disposed on the traction block and connected thereto, and a hook screw that is fixedly disposed on the traction block, wherein the second screw rod cooperates with the traction groove.

[0018] In a preferred embodiment of the cranial retractor of this utility model, the traction part further includes a second nut fixedly disposed on the second screw, and the traction block is slidably disposed in the traction groove.

[0019] In a preferred embodiment of the cranial retractor of this utility model, the fixing part includes a third screw rod that is threadedly disposed on the retractor block and connected thereto, a third nut that is fixedly disposed on the third screw rod, the retractor block being slidably disposed in the retractor groove, and the third screw rod cooperating with the retractor groove.

[0020] In a preferred embodiment of the cranial retractor of this utility model, the retractor part includes a traction rod fixedly disposed on the retractor block and a brain pressure plate fixedly disposed on the traction rod.

[0021] In a preferred embodiment of the cranial retractor of this utility model, the longitudinal section of both the traction block and the retractor block is "T" shaped, and the traction groove is disposed on the outer or inner side wall of the fixing ring.

[0022] The beneficial effects of this invention are as follows: the angle between the two fixing rings is determined by the surgical position, one fixing ring is rotated and the first nut is tightened to fix the angle between the fixing rings, and the fixing rings are fixed by an external device; the traction block and the retraction block are slid to the appropriate position, and during the operation, after the scalp retractor fixes the lifted scalp, the rubber band at the other end is wrapped around the hook screw, and then the surgical operation is performed by the traction rod and the brain pressure plate. Compared with the traditional traction method, this device can efficiently and stably fix the lifted scalp and ensure full exposure of the surgical field. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0024] Figure 1 This is a schematic diagram of the overall structure of the cranial retractor of this utility model.

[0025] Figure 2 This is a schematic diagram showing the cooperation between the sliding part and the connecting part of the cranial retractor of this utility model.

[0026] Figure 3 This is a schematic diagram of the longitudinal section of the fixing ring of the cranial retractor of this utility model.

[0027] Figure 4 This is a schematic diagram of the traction mechanism of the cranial retractor of this utility model.

[0028] Figure 5 This is a schematic diagram of the retraction mechanism of the cranial retraction device of this utility model. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0032] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0033] Example 1, referring to 1-5, provides a cranial retractor, which includes,

[0034] Two fixation mechanisms 1 include a fixation ring 11 and a sliding part 12 disposed on the fixation ring 11. The sliding part 12 includes a traction groove 121 disposed on the side wall of the fixation ring 11 and a retraction groove 122 disposed on the outer side wall of the fixation ring 11. The longitudinal section of both the traction groove 121 and the retraction groove 122 is "T" shaped. The traction groove 121 is disposed on the outer side wall or the inner side wall of the fixation ring 11, as long as it does not affect the subsequent surgical operation.

[0035] Two fixing rings 11 form a circle, and a connecting mechanism 2 is provided on the inner and outer sides of the circle. The two fixing rings 11 are detachably connected by the connecting mechanism 2. The connecting mechanism 2 is provided on the inner and outer sides of the circle, which facilitates the installation and disassembly of the components that slide in the pulling groove 121 and the pulling opening groove 122.

[0036] The connecting mechanism 2 includes a connecting plate 21 disposed between two fixed rings 11, and two connecting parts 22 disposed on the connecting plate 21 and cooperating with the fixed rings 11. The connecting part 22 includes a first screw 221 fixedly disposed on the side wall of the fixed ring 11, and a first nut 222 disposed on the first screw 221 and threadedly connected thereto. One end of the connecting plate 21 is fixedly connected to one of the first screws 221, and the other end is connected through and rotatably connected to the other first screw 221.

[0037] The included angle of the fixed ring 11 can be adjusted by rotating the fixed ring 11 according to the surgical position. The first nut 222 is tightened, and the tightening effect of the first nut 222 restricts the rotation of the fixed ring 11.

[0038] The traction mechanism 3 includes a plurality of traction blocks 31 slidably disposed on the side wall of the fixed ring 11, and a traction part 32 disposed on the traction block 31. The traction part 32 includes a second screw 321 that is disposed through the traction block 31 and threadedly connected thereto, and a hook screw 322 that is fixedly disposed on the traction block 31. The second screw 321 cooperates with the traction groove 121. Tightening the second screw 321 until it abuts against the inner wall of the traction groove 121 limits the movement of the traction block 31.

[0039] The pulling part 32 also includes a second nut 323 fixedly mounted on the second screw 321, and the pulling block 31 is slidably mounted in the pulling groove 121. The second nut 323 facilitates the turning of the second screw 321.

[0040] The pulling mechanism 4 includes a plurality of pulling blocks 41 slidably disposed on the outer wall of the fixed ring 11, and a fixing part 42 disposed on the pulling blocks 41. The fixing part 42 includes a third screw 421 that passes through the pulling block 41 and is threadedly connected thereto, and a third nut 423 that is fixedly disposed on the third screw 421. The third screw 421 cooperates with the pulling groove 122. Tightening the third screw 421 until it abuts against the inner wall of the pulling groove 122 limits the movement of the pulling blocks 41.

[0041] Both the pull block 41 and the pull block 31 have a "T" shaped longitudinal section. They cooperate with the pull groove 121 and the pull groove 122 respectively, so that the pull block 41 and the pull block 31 can slide smoothly.

[0042] The traction block 41 is provided with a traction part 43, which includes a traction rod 431 fixedly installed on the traction block 41 and a brain pressure plate 432 fixedly installed on the traction rod 431.

[0043] During use, first determine the angle between the two fixing rings 11 according to the surgical location, rotate one fixing ring 11 and tighten the first nut 222 to fix the angle between the fixing rings 111, and fix the fixing ring 11 by external device;

[0044] Slide the traction block 31 and the retraction block 41 to the appropriate position, and rotate the second screw 321 and the third screw 421 respectively to fix the traction block 31 and the retraction block 41. During the operation, after the scalp hook fixes the lifted scalp, the rubber band at the other end of it is wrapped around the hook screw 322. Then, the traction rod 431 and the brain depressor 432 are used to perform the surgical operation. This device can efficiently and stably fix the lifted scalp and ensure full exposure of the surgical field.

[0045] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0046] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to the implementation of the present invention) may be omitted.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A cranial retractor, characterized in that: include, Two fixing mechanisms (1) include a fixing ring (11) and a sliding part (12) disposed on the fixing ring (11); Two connecting mechanisms (2) include a connecting plate (21) disposed between the two fixed rings (11), and two connecting parts (22) disposed on the connecting plate (21) and cooperating with the fixed rings (11); The traction mechanism (3) includes a plurality of traction blocks (31) slidably disposed on the side wall of the fixed ring (11), and a traction part (32) disposed on the traction block (31); The pulling mechanism (4) includes a plurality of pulling blocks (41) slidably disposed on the outer side wall of the fixed ring (11), a fixing part (42) disposed on the pulling block (41), and a pulling part (43) disposed on the pulling block (41). The two fixing rings (11) are detachably connected by the connecting mechanism (2), and the pulling block (31) and the pulling block (41) are slidably connected to the fixing rings (11) through the sliding part (12).

2. The cranial retractor according to claim 1, characterized in that: The sliding part (12) includes a pulling groove (121) disposed on the side wall of the fixed ring (11) and a pulling groove (122) disposed on the outer side wall of the fixed ring (11). The longitudinal section of both the pulling groove (121) and the pulling groove (122) is "T" shaped.

3. The cranial retractor according to claim 2, characterized in that: The connecting part (22) includes a first screw (221) fixedly disposed on the side wall of the fixing ring (11), and a first nut (222) disposed on the first screw (221) and threadedly connected thereto.

4. The cranial retractor according to claim 3, characterized in that: One end of the connecting plate (21) is fixedly connected to one of the first screws (221), and the other end is connected to another first screw (221) through and rotatably connected.

5. The cranial retractor according to any one of claims 1 to 4, characterized in that: The two fixed rings (11) form a circle, and the two connecting mechanisms (2) are respectively located on the inner and outer sides of the circle.

6. The cranial retractor according to claim 2, characterized in that: The pulling part (32) includes a second screw (321) that is threadedly disposed on the pulling block (31) and threadedly connected thereto, and a hook screw (322) that is fixedly disposed on the pulling block (31). The second screw (321) cooperates with the pulling groove (121).

7. The cranial retractor according to claim 6, characterized in that: The pulling part (32) further includes a second nut (323) fixedly disposed on the second screw (321), and the pulling block (31) is slidably disposed in the pulling groove (121).

8. The cranial retractor according to claim 2, characterized in that: The fixing part (42) includes a third screw (421) that is threadedly disposed on the pulling block (41) and connected to it, and a third nut (423) that is fixedly disposed on the third screw (421). The pulling block (41) is slidably disposed in the pulling groove (122), and the third screw (421) cooperates with the pulling groove (122).

9. The cranial retractor according to claim 1, characterized in that: The retraction part (43) includes a traction rod (431) fixedly mounted on the retraction block (41) and a brain pressure plate (432) fixedly mounted on the traction rod (431).

10. The cranial retractor according to claim 2, characterized in that: The longitudinal section of both the pulling block (31) and the pulling block (41) is "T" shaped, and the pulling groove (121) is provided on the outer or inner side wall of the fixing ring (11).

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