Brain spatula for neurosurgery

Abstract

The present invention relates to the technical field of medical devices, and specifically to a brain pressure plate for neurosurgery, comprising: a shell, a handle fixedly installed on the outer side of one end of the shell, a mounting groove opened at the other end of the shell, gears one and two being rotatably connected in the mounting grooves through rotating shafts, before starting the operation, airbag two is sleeved on the outer side of the pressure plate, and trachea one and trachea two are fixedly connected to an external inflation tube, airbag one is first inflated through trachea one, airbag one expands and contacts the inner wall of airbag two, and airbag two is fixed, and then medical staff pulls brain tissue by using the pressure plate to place one end with airbag two into the brain tissue, and brings airbag two into a suitable position in the brain tissue as the pressure plate is inserted, and after being inserted into the suitable position, airbag two is inflated, airbag two expands outwards, and airbag one is deflated at the same time, and the pressure plate is pulled out, at which time the surgical site can be stretched open, making the surgical operation convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and specifically to a brain spatula for neurosurgical operations. Background Art

[0002] A brain spatula is one of the commonly used instruments in neurosurgical operations. It is mainly used to retract the brain tissue, expose deep lesions, and provide a good view for deep microsurgery. The intraoperative retraction of the brain spatula is mainly divided into two types: continuous and intermittent retraction. Continuous retraction usually refers to continuously retracting the brain tissue during the operation, and intermittent retraction refers to repeatedly retracting and relaxing the brain tissue multiple times. The brain spatula has a rigid structure and a sharp edge. Coupled with the pulsatility of the brain tissue, excessive or inappropriate retraction of the brain tissue can cause various degrees of brain damage such as cerebral edema, cerebral contusion, cerebral infarction, and cerebral hemorrhage, which is the most common iatrogenic damage in neurosurgical operations.

[0003] When the traditional brain spatula retracts the brain tissue during the operation, there is still a risk of contact between surgical instruments and the brain tissue, which may cause damage to the brain tissue. Moreover, when using a brain spatula with a rigid structure, it is easy to cause damage to the brain tissue during use. When using a brain spatula with a soft structure, the soft structure cannot effectively support the brain tissue, resulting in an incomplete exposure of the surgical field, thereby affecting the surgical process. Therefore, the traditional brain spatula has certain limitations in use. Summary of the Invention

[0004] The purpose of the present invention is to provide a brain spatula for neurosurgical operations to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A brain spatula for neurosurgical operations, comprising: a housing, a handle is fixedly installed on the outer side of one end of the housing, an installation groove is opened at the other end of the housing, a first gear and a second gear are respectively rotatably connected in the installation groove through a rotating shaft, the second gear is located at the outer port of the installation groove, the outer walls of the second gear and the first gear are meshed and connected, a fixing member is provided at one end of the first gear, and a pressing plate is installed at the outer end of the second gear through a rotating plate and a bolt;

[0006] Air bags one are fixedly installed on the outer walls of the upper and lower ends of the pressing plate, a first connecting pipe is fixedly installed between the two air bags one, a first trachea is fixedly installed at one end of one of the air bags one, an air bag two can be sleeved on the outer end of the pressing plate, the air bag two has two parts, and the two parts are connected through a second connecting pipe, and a second trachea is fixedly installed at one end of the air bag two.

[0007] Preferably, the fixing component includes a sliding hole, an arc rack and a round rod. The arc rack is located on one side of the first gear. One end of the arc rack is fixedly installed with a moving plate. The rear end of the moving plate is fixedly installed with a telescopic rod. The other end of the telescopic rod is fixedly installed on the inner wall of the installation groove. A spring is sleeved on the outer wall of the telescopic rod. One end of the spring is fixedly installed on the inner wall of the installation groove, and the other end is fixedly installed on the outer wall of the moving plate. When the spring is in a balanced state, the outer walls of the arc rack and the first gear are meshed and connected.

[0008] Preferably, the sliding hole is opened on the side wall of one end of the housing and communicates with the inner end of the installation groove. The diameter of the round rod is smaller than the inner diameter of the sliding hole. One end of the round rod slides through the sliding hole and is fixedly connected to one end of the moving plate. The other end of the round rod is located outside the housing and is fixedly installed with an arc plate.

[0009] Preferably, one end of the rotating plate is fixedly installed on one end of the second gear. The other end of the rotating plate extends out of the outer end of the installation groove and is fixedly installed with a fixing plate. The left and right ends of the fixing plate are both located outside the rotating plate, and fixing holes are opened at the left and right ends of the fixing plate.

[0010] Preferably, threaded holes corresponding to the fixing holes are opened on the left and right sides of the front end of the pressing plate. One end of the bolt passes through the fixing hole and is threadedly connected to the inner wall of the threaded hole.

[0011] Preferably, grooves are symmetrically opened at the upper and lower ends of the pressing plate. A strip-shaped groove is opened at the middle of the front end of the pressing plate. The inner end of the strip-shaped groove communicates the two grooves, and a limiting groove is opened at the inner end of the strip-shaped groove.

[0012] Preferably, the two first air bags are respectively fixed in the two grooves. At the same time, the connecting pipe one passes through the strip-shaped groove and is located in the limiting groove. The upper and lower ends of the connecting pipe one are respectively communicated with the interiors of the two first air bags.

[0013] Preferably, a relief groove is opened on the upper side of the front end of the pressing plate. The relief groove is located on one side of the groove, and the inner end of the relief groove communicates with the groove. The air pipe one is located in the relief groove.

[0014] Preferably, a plurality of connecting pipes two are arranged in the middle of the left and right sides of the second air bag. The connecting pipes two are located outside the pressing plate, and both ends of the connecting pipes two are communicated with the interior of the second air bag.

[0015] Preferably, the air pipe one is communicated with the interior of the first air bag, and the air pipe two is communicated with the interior of the second air bag, and both the air pipe one and the air pipe two can be externally connected to an air charging pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] Before starting the operation, airbag 2 is sleeved on the outside of the pressure plate, and trachea 1 and trachea 2 are fixedly connected to the external inflation tube. Airbag 1 is first inflated through trachea 1, and airbag 1 expands and contacts the inner wall of airbag 2 to fix airbag 2. Then the medical staff uses the pressure plate to pull the brain tissue and insert the end with airbag 2 into the brain tissue. As the pressure plate is inserted, airbag 2 is brought to the appropriate position in the brain tissue. After being inserted into the appropriate position, airbag 2 is inflated and expanded outward. At the same time, airbag 1 is deflated and the pressure plate is pulled out. At this time, the surgical site can be stretched open to facilitate the surgical operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a left view of the overall structure of the present invention;

[0019] Figure 2 It is a right view of the overall structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the connection between the fixing plate and the pressing plate of the present invention;

[0021] Figure 4 This is a schematic diagram of the inner end structure of the housing of the present invention;

[0022] Figure 5 This is a schematic diagram of the unfolding of the pressure plate and the air bag of the present invention;

[0023] Figure 6 It is a schematic diagram of the pressing plate structure of the present invention.

[0024] In the figure: 1. shell; 2. handle; 3. mounting groove; 4. sliding hole; 5. rotating plate; 6. fixed plate; 7. telescopic rod; 8. movable plate; 9. spring; 10. arc-shaped rack; 11. round rod; 12. arc-shaped plate; 13. pressure plate; 14. groove; 15. strip groove; 16. limit groove; 17. give way groove; 18. gear one; 19. gear two; 20. fixing hole; 21. threaded hole; 22. airbag one; 23. connecting pipe one; 24. trachea one; 25. airbag two; 26. connecting pipe two; 27. trachea two. DETAILED DESCRIPTION

[0025] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figures 1 to 6, the present invention provides a technical solution: a brain retractor for neurosurgery, comprising: a housing 1, a handle 2 is fixedly installed on the outer side of one end of the housing 1, an installation groove 3 is opened at the other end of the housing 1, a first gear 18 and a second gear 19 are respectively rotatably connected in the installation groove 3 through a rotating shaft, the second gear 19 is located at the outer port of the installation groove 3, the outer walls of the second gear 19 and the first gear 18 are meshed and connected, a pressing plate 13 is installed at the outer end of the second gear 19 through a rotating plate 5 and a bolt, one end of the rotating plate 5 is fixedly installed at one end of the second gear 19, the other end of the rotating plate 5 extends out of the outer end of the installation groove 3 and is fixedly installed with a fixing plate 6, both the left and right ends of the fixing plate 6 are located outside the rotating plate 5, fixing holes 20 are opened at both the left and right ends of the fixing plate 6, threaded holes 21 corresponding to the fixing holes 20 are opened at both the left and right sides of the front end of the pressing plate 13, one end of the bolt passes through the fixing hole 20 and is threadedly connected with the inner wall of the threaded hole 21, fixing the fixing plate 6 and the pressing plate 13 together, which facilitates the disassembly and assembly of the pressing plate 13, and at the same time enables the pressing plate 13 to rotate on one side of the housing 1 through the fixing plate 6, the rotating plate 5 and the second gear 19, and the housing 1 and the pressing plate 13 can be held up by holding the handle 2 with the hand.

[0027] A fixing component is arranged at one end of the first gear 18, the fixing component includes a sliding hole 4, an arc-shaped rack 10 and a round rod 11, the arc-shaped rack 10 is located on one side of the first gear 18, a moving plate 8 is fixedly installed at one end of the arc-shaped rack 10, a telescopic rod 7 is fixedly installed at the rear end of the moving plate 8, the other end of the telescopic rod 7 is fixedly installed on the inner wall of the installation groove 3, a spring 9 is sleeved on the outer wall of the telescopic rod 7, one end of the spring 9 is fixedly installed on the inner wall of the installation groove 3, and the other end is fixedly installed on the outer wall of the moving plate 8. When the spring 9 is in a balanced state, the outer walls of the arc-shaped rack 10 and the first gear 18 are meshed and connected, the arc-shaped rack 10 fixes the first gear 18, and at the same time also fixes the second gear 19, preventing the pressing plate 13 from rotating. The arc-shaped rack 10 can move on one side of the first gear 18 by pressing the spring 9 and separate from the first gear 18, and then the second gear 19 and the first gear 18 can rotate, which is convenient for adjusting the angle of the pressing plate 13 and makes it more convenient to use.

[0028] The sliding hole 4 is opened on the side wall of one end of the housing 1 and is communicated with the inner end of the installation groove 3. The diameter of the round rod 11 is smaller than the inner diameter of the sliding hole 4. One end of the round rod 11 slidably passes through the sliding hole 4 and is fixedly connected with one end of the moving plate 8. The other end of the round rod 11 is located outside the housing 1 and is fixedly installed with an arc-shaped plate 12. By pushing the arc-shaped plate 12 inward, the arc-shaped plate 12 drives the round rod 11 to move inward. The round rod 11 transmits the force to the moving plate 8, and the moving plate 8 drives the arc-shaped rack 10 to move synchronously by compressing the spring 9, so that the arc-shaped rack 10 separates from the first gear 18. After removing the pressure applied to the arc-shaped plate 12, under the reaction force of the spring 9, the arc-shaped rack 10 resets and meshes with the first gear 18 again.

[0029] Airbags 22 are fixedly installed on the outer walls of the upper and lower ends of the pressing plate 13, a connecting pipe 23 is fixedly installed between the two airbags 22, and a trachea 24 is fixedly installed at one end of one of the airbags 22. Grooves 14 are symmetrically provided at the upper and lower ends of the pressing plate 13, a strip groove 15 is provided at the middle of the front end of the pressing plate 13, the inner end of the strip groove 15 connects the two grooves 14, and a limiting groove 16 is provided at the inner end of the strip groove 15. A clearance groove 17 is provided on the upper side of the front end of the pressing plate 13, and the two airbags 22 are respectively fixed in the two grooves 14 and connected at the same time. Tube 1 23 passes through the strip groove 15 and is located in the limiting groove 16. The upper and lower ends of the connecting tube 23 are respectively connected to the interior of the two airbags 22. The clearance groove 17 is located on one side of the groove 14. The inner end of the clearance groove 17 is connected to the groove 14. The air pipe 24 is located in the clearance groove 17. The airbag 22 is fixed to the upper and lower ends of the pressure plate 13. The air pipe 24 is connected to the interior of the airbag 22, and the air pipe 24 can be connected to an external inflation tube. When in use, it is fixedly connected to the external inflation tube, and the airbag 22 is inflated through the inflation tube to expand the airbag 22 outward.

[0030] The outer end of the pressure plate 13 can be sleeved with an airbag 25. The airbag 25 has two parts, and the two parts are connected by a connecting tube 26. An air pipe 27 is fixedly installed at one end of the airbag 25. A plurality of connecting tubes 26 are arranged in the middle of the left and right sides of the airbag 25. The connecting tube 26 is located on the outer side of the pressure plate 13. Both ends of the connecting tube 26 are connected to the interior of the airbag 25. The air pipe 27 is connected to the interior of the airbag 25, and the air pipe 27 can be externally connected to an inflation tube. When in use, it is fixedly connected to an external inflation tube, and the airbag 25 is inflated through the inflation tube. Under the action of the connecting tube 26, the airbag 25 is expanded outward.

[0031] When the device is working, before starting the operation, the airbag 25 is sleeved on the outside of the pressure plate 13, and the trachea 1 24 and the trachea 27 are fixedly connected to the external inflation tube. The airbag 22 is first inflated through the trachea 24, and the airbag 22 expands and contacts the inner wall of the airbag 25 to fix the airbag 25. Then the medical staff uses the pressure plate 13 to pull the brain tissue and insert the end with the airbag 25 into the brain tissue. As the pressure plate 13 is inserted, the airbag 25 is brought to the appropriate position in the brain tissue. After being inserted into the appropriate position, the airbag 25 is inflated and the airbag 25 expands outward. At the same time, the airbag 1 22 is deflated and the pressure plate 13 is pulled out. At this time, the surgical site can be stretched open to facilitate the surgical operation.

[0032] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Brain pressure board for neurosurgery, including: A housing (1), a handle (2) is fixedly mounted on the outer side of one end of the housing (1), characterized in that: a mounting groove (3) is formed at the other end of the housing (1), a gear 1 (18) and a gear 2 (19) are rotatably connected in the mounting groove (3) via a rotating shaft, the gear 2 (19) is located at an outer end of the mounting groove (3), the gear 2 (19) is meshedly connected with the outer wall of the gear 1 (18), a fixing component is provided at one end of the gear 1 (18), and a pressure plate (13) is mounted on the outer end of the gear 2 (19) via a rotating plate (5) and bolts; Airbags (22) are fixedly mounted on the outer walls of the upper and lower ends of the pressure plate (13), a connecting pipe (23) is fixedly mounted between the two airbags (22), an air pipe (24) is fixedly mounted on one end of one of the airbags (22), an airbag (25) is sleeved on the outer end of the pressure plate (13), the airbag (25) is provided with two parts, and the two parts are connected by a connecting pipe (26), and an air pipe (27) is fixedly mounted on one end of the airbag (25); First, air is inflated into airbag 1 (22) through trachea 1 (24), and airbag 1 (22) expands and contacts the inner wall of airbag 2 (25), thereby fixing airbag 2 (25). Then, the medical staff uses a pressure plate (13) to pull the brain tissue and insert one end of airbag 2 (25) into the brain tissue. As the pressure plate (13) is inserted, airbag 2 (25) is brought to a suitable position in the brain tissue. After being inserted into the suitable position, airbag 2 (25) is inflated and expands outward. At the same time, airbag 1 (22) is deflated and the pressure plate (13) is withdrawn, thereby playing the role of expanding the surgical site.

2. The brain pressure plate for neurosurgery according to claim 1, characterized in that: The fixed component comprises a sliding hole (4), an arc-shaped rack (10) and a round rod (11); the arc-shaped rack (10) is located on one side of the gear one (18); a moving plate (8) is fixedly mounted on one end of the arc-shaped rack (10); a telescopic rod (7) is fixedly mounted on the rear end of the moving plate (8); the other end of the telescopic rod (7) is fixedly mounted on the inner wall of the mounting groove (3); a spring (9) is sleeved on the outer wall of the telescopic rod (7); one end of the spring (9) is fixedly mounted on the inner wall of the mounting groove (3); and the other end of the spring (9) is fixedly mounted on the outer wall of the moving plate (8); when the spring (9) is in a balanced state, the arc-shaped rack (10) and the outer wall of the gear one (18) are meshed and connected.

3. The brain pressure plate for neurosurgery according to claim 2, characterized in that: The sliding hole (4) is formed on a side wall at one end of the housing (1) and is connected to the inner end of the mounting groove (3). The diameter of the round rod (11) is smaller than the inner diameter of the sliding hole (4). One end of the round rod (11) slides through the sliding hole (4) and is fixedly connected to one end of the movable plate (8). The other end of the round rod (11) is located outside the housing (1) and is fixedly mounted with an arc plate (12).

4. The brain pressure plate for neurosurgery according to claim 1, characterized in that: One end of the rotating plate (5) is fixedly mounted on one end of the second gear (19), and the other end of the rotating plate (5) extends out of the outer end of the mounting groove (3) and is fixedly mounted with a fixed plate (6). The left and right ends of the fixed plate (6) are both located outside the rotating plate (5), and the left and right ends of the fixed plate (6) are both provided with fixing holes (20).

5. The brain pressure plate for neurosurgery according to claim 4, characterized in that: The front end of the pressing plate (13) is provided with threaded holes (21) corresponding to the fixing hole (20) on both left and right sides, and one end of the bolt passes through the fixing hole (20) and is threadedly connected to the inner wall of the threaded hole (21).

6. The brain pressure plate for neurosurgery according to claim 1, characterized in that: The upper and lower ends of the pressing plate (13) are symmetrically provided with grooves (14), the middle of the front end of the pressing plate (13) is provided with a strip groove (15), the inner end of the strip groove (15) connects the two grooves (14), and the inner end of the strip groove (15) is provided with a limiting groove (16).

7. The brain pressure plate for neurosurgery according to claim 6, characterized in that: The two airbags (22) are fixed in the two grooves (14) respectively, and the connecting pipe (23) passes through the strip groove (15) and is located in the limiting groove (16), and the upper and lower ends of the connecting pipe (23) are respectively connected to the interior of the two airbags (22).

8. The brain pressure plate for neurosurgery according to claim 6, characterized in that: A clearance groove (17) is provided on the upper side of the front end of the pressure plate (13). The clearance groove (17) is located on one side of the groove (14). The inner end of the clearance groove (17) is connected to the groove (14). The air pipe 1 (24) is located in the clearance groove (17).

9. The brain pressure plate for neurosurgery according to claim 1, characterized in that: A plurality of second connecting pipes (26) are provided in the middle of the left and right sides of the second airbag (25). The second connecting pipe (26) is located outside the pressure plate (13), and both ends of the second connecting pipe (26) are connected to the inside of the second airbag (25).

10. The brain pressure plate for neurosurgery according to claim 1, characterized in that: The interior of the trachea 1 (24) is connected to the interior of the airbag 1 (22), the interior of the trachea 2 (27) is connected to the interior of the airbag 2 (25), and both the trachea 1 (24) and the trachea 2 (27) are externally connected to an inflation tube.

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