A positioning device for cranial surgery

Abstract

The present invention relates to the technical field of medical devices, and discloses a cranial surgery positioning device, comprising a base and a mounting seat movably arranged on the upper side of the base, a housing slidably arranged on the side of the mounting seat, a screw rod rotatably arranged inside the housing, a threaded sleeve threadedly connected to the middle of the screw rod, a clamping rod installed on the outside of the sleeve, a clamping piece for clamping a muscle flap slidably arranged at the end of the clamping rod, a second gear installed at the end of the screw rod, a second rack installed on the side of the mounting seat, the second rack intermittently meshing with the second gear, a clamping block installed at the bottom of the housing, and a limited block movably arranged inside the mounting seat. Pull the housing backward, the meshing of the second gear and the second rack drives the screw rod to rotate, and then the screw rod and the sleeve are used in conjunction, so that the clamping rod drives the clamping piece to clamp the muscle flap, then the second gear and the second rack are separated, and the position of the housing is fixed by the use of the clamping block and the limit block, so as to quickly position the muscle flap.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, in particular to a positioning device for cranial and brain surgery. Background Art

[0002] Craniosacral surgery is a complex medical procedure used to treat a variety of problems affecting the brain, meninges, skull, or central nervous system.

[0003] The process of cranial surgery generally includes the following steps: Preoperative preparation: including detailed imaging examinations (such as MRI, CT scans), blood tests, and discussion of surgical risks and expected results; Anesthesia: General anesthesia is usually used; Incisions and cranial fenestrations: The surgeon will make an incision on the head and use special tools to open the skull; Manipulation of meninges and brain tissue: Under a microscope, the surgeon will carefully manipulate the meninges and brain tissue to perform tumor removal, aneurysm repair, etc.; Closure: After the operation is completed, the skull will be repositioned and fixed, and the skin incision will be sutured; Postoperative care: including monitoring vital signs, preventing infection, managing pain, and preventing complications. During the operation, a positioning device is needed to locate the patient's head or intracranial lesions to facilitate the smooth progress of the operation.

[0004] When making an incision on the patient's scalp and opening a window in the skull, it is necessary to first lay a towel on the patient's surgical section, use a scalpel to incise the scalp to expose the temporalis muscle, then place the lower edge of the surgical towel clamp on the temporalis muscle, and use the surgical towel clamp to retract the muscle flap for positioning, so as to fully expose the skull, thereby facilitating craniotomy and brain tissue manipulation.

[0005] At present, during cranial surgery, the existing technology usually uses a surgical towel clamp to clamp the muscle flap, a gauze loop is passed through the handle ring of the surgical towel clamp, the handle is clamped tightly, and then the loose end of the gauze is fixed to the drape using the surgical towel clamp to position the muscle flap. However, the doctor needs to operate manually throughout the process, which is time-consuming, labor-intensive, and inefficient. Therefore, it does not meet the existing needs. In this regard, we propose a cranial surgery positioning device. Summary of the invention

[0006] The present invention provides a cranial surgery positioning device, which has the beneficial effect of improving the efficiency of positioning the myocutaneous flap, and solves the problem that in the cranial surgery process mentioned in the above background technology, the prior art usually uses a surgical towel clamp to clamp the myocutaneous flap, the gauze loop is passed through the handle ring of the surgical towel clamp, the handle is clamped tightly, and then the surgical towel clamp is used to fix the loose end of the gauze to the drape, so as to position the myocutaneous flap, but the doctor needs to operate manually throughout the process, which is time-consuming, labor-intensive and inefficient.

[0007] The present invention provides the following technical solution: a cranial surgery positioning device, comprising a base and a support seat slidably inserted on the inner side of the base, the upper end of the support seat is located outside the base, the top of the support seat is connected to a mounting seat, a shell is slidably arranged on the side of the mounting seat, a screw rod is rotatably arranged inside the shell, a silk sleeve is threadedly connected to the middle part of the screw rod, a clamping rod is installed on the outside of the silk sleeve, the end of the clamping rod is arranged outside the shell, a clamping piece is slidably arranged on the end of the clamping rod, the clamping piece is used to clamp and position the muscle flap, a second gear is installed on the end of the screw rod, a second rack is installed on the side of the mounting seat, the second rack is intermittently meshed with the second gear, a clamping block is installed on the bottom of the shell, a limit block is movably arranged on the inner side of the mounting seat, and the clamping block is used in conjunction with the limit block to fix the position of the shell.

[0008] As an optional solution of the cranial surgery positioning device described in the present invention, the support seat is slidably inserted into the upper end of the base, a movable block is slidably inserted into the inner side of the base, a bolt is rotatably inserted into the side of the movable block, the bolt is threadedly connected to the side of the base, and the end of the bolt is arranged on the outside of the base.

[0009] As an optional solution of the cranial brain surgery positioning device described in the present invention, wherein: a one-way bearing is installed on the inner side of the movable block, a shaft is inserted into the one-way bearing, the shaft fits with the inner ring of the one-way bearing, the inner wall of the movable block fits with the outer ring of the one-way bearing, and both ends of the shaft are arranged outside the movable block;

[0010] A rotating wheel is installed at one end of the shaft rod, and a pedal is installed outside the rotating wheel. The number of the pedals is set to be several, and the several pedals are evenly installed on the outside of the rotating wheel in a circumferential direction. A notch is opened on the side wall of the base, and the pedal close to the notch is arranged outside the base through the notch;

[0011] A first gear is installed at the other end of the shaft, and a first rack is installed at the bottom of the support seat, and the first rack is intermittently meshed with the first gear.

[0012] As an optional solution of the cranial surgery positioning device described in the present invention, wherein: a trachea is installed on the inner side of the base, the trachea is configured as a hose, the trachea is filled with gas, a diaphragm is provided inside the trachea, the diaphragm is configured as a soft disc, the outer side of the diaphragm is connected to the inside of the trachea, the number of the diaphragms is set to be several, and several of the diaphragms are vertically and evenly arranged inside the trachea, the middle part of the diaphragms are all provided with air holes, and a protrusion is installed on the outer side of the first rack, and the protrusion is squeezed on the outer side of the trachea.

[0013] As an optional solution of a cranial surgery positioning device described in the present invention, a sliding bar is installed on the outside of the shell, a groove body used in conjunction with the sliding bar is opened on the side of the mounting seat, the sliding bar is slidably inserted in the groove body of the mounting seat, and a handle is also installed on the outside of the shell.

[0014] As an optional solution of the cranial surgery positioning device described in the present invention, wherein: both ends of the screw rod are sleeved with damping bearings, and the two damping bearings are respectively inserted on the upper and lower sides of the housing;

[0015] The screw rod is arranged as a bidirectional screw rod, the number of the thread sleeves is arranged as two, the two thread sleeves are respectively threadedly connected to the reverse threads of the screw rod, the number of the clamping rod and the clamping plate are both arranged as two, the side wall of the shell is provided with a socket, the end of the clamping rod is arranged outside the shell through the socket, the two clamping plates are respectively arranged at the two ends of the clamping rod relative to each other, the end of the clamping rod is provided with a groove, the clamping plate is slidably inserted in the groove at the end of the clamping rod, a first spring is installed on the outside of the clamping plate, and the two ends of the first spring are respectively connected to the clamping plate and the inner wall of the clamping rod.

[0016] As an optional solution of the cranial surgery positioning device described in the present invention, wherein: the locking block and the limit block are both provided with trapezoidal blocks, and a number of the limit blocks are evenly arranged laterally; a mounting plate is slidably provided on the inner side of the mounting seat, a groove is provided on the upper side of the mounting plate, and the limit block is slidably inserted in the groove; a second spring is installed at the bottom of the limit block, and the two ends of the second spring are respectively connected to the limit block and the inner wall of the mounting plate; a limit plate is installed on the outer side of the limit block, and a slide groove used in conjunction with the limit plate is provided on the inner side of the mounting plate, and the limit plate is slidably inserted in the slide groove on the inner side of the mounting plate.

[0017] As an optional solution of a cranial surgery positioning device described in the present invention, a third spring is installed at the bottom of the mounting plate, and two ends of the third spring are respectively connected to the bottom of the mounting plate and the inner wall of the mounting seat.

[0018] As an optional solution of the cranial surgery positioning device described in the present invention, a first wedge block is also installed on the outer side of the mounting plate, a second wedge block is slidably arranged on the inner side of the mounting seat, the first wedge block is used in conjunction with the second wedge block, a button is installed on the outer side of the second wedge block, and the middle part of the button is slidably inserted into the side wall of the mounting seat.

[0019] As an optional solution of the cranial surgery positioning device described in the present invention, a connecting block is installed on the inclined surface of the first wedge-shaped block, a connecting groove for use with the connecting block is opened on the inclined surface of the second wedge-shaped block, and the connecting block is slidably inserted into the inner side of the connecting groove.

[0020] The present invention has the following beneficial effects:

[0021] 1. The cranial surgery positioning device adjusts the height of the mounting seat and the housing by adjusting the height of the support seat, so that the clamping rod is close to the patient's myocutaneous flap, and the two clamping rods are respectively placed on the upper and lower sides of the myocutaneous flap. The handle is held and the housing is pulled backward. The second gear is engaged with the second rack, so that the second gear drives the screw rod to rotate, and then the screw rod and the threaded sleeve cooperate to drive the two clamping rods to approach each other, so that the two clamping pieces are in contact with the myocutaneous flap, so that the first spring is compressed, so that the clamping piece clamps the myocutaneous flap;

[0022] Continue to pull the shell backward to separate the second gear from the second rack. At the same time, the shell drives the clamping rod to move backward, thereby pulling the myocutaneous flap backward to expose the patient's skull. Not only that, the shell drives the clamping block to move, so that the inclined surface of the clamping block presses the limit block downward by squeezing with the inclined surface of the limit block, and squeezes the second spring to make the clamping block pass over the limit block. Then the limit block moves up and resets under the action of the rebound force of the second spring, so that the vertical surface of the clamping block conflicts with the vertical surface of the limit block, and the clamping block is positioned, so that the myocutaneous flap is quickly positioned by the clamping piece, thereby improving the efficiency of myocutaneous flap positioning during cranial surgery.

[0023] 2. In the cranial surgery positioning device, when the foot steps down on the pedal, the inner ring and the outer ring of the one-way bearing rotate relatively, so that the rotating wheel drives the first gear to rotate synchronously through the shaft rod, and the first gear is meshed with the first rack, so that the first rack drives the support seat to move up, and the support seat drives the mounting seat to move up; when the foot releases the pedal, the inner ring and the outer ring of the one-way bearing are relatively still, so that the first gear remains still, and the height of the mounting seat is maintained through the clamping between the first gear and the first rack, so that the clamping rod is moved to a suitable position, so as to facilitate the clamping and positioning of the patient's muscle flap;

[0024] Moreover, by turning the bolt, the movable block drives the first gear away from the first rack, thereby disengaging from the first rack, causing the support seat and the mounting seat to descend under the action of gravity. At the same time, the protrusion squeezes the air pipe, causing the gas in the air pipe to flow slowly through the air holes, thereby causing the mounting seat to descend slowly and steadily.

[0025] 3. The cranial surgery positioning device, by pressing the button inward, the button drives the second wedge block to move, and through the cooperation of the first wedge block and the second wedge block, the first wedge block drives the mounting plate to move downward, and the third spring is squeezed, so that the mounting plate drives the limit block to move downward and separate from the card block, so as to release the limit effect of the limit block on the card block, thereby facilitating the forward pushing of the housing to reset the housing;

[0026] After the housing is reset, the button is released, and under the action of the rebound force of the third spring, the mounting plate drives the limit block to move upward and reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0028] Figure 2 It is a schematic diagram of the cutaway structure of the present invention.

[0029] Figure 3 It is a schematic diagram of the three-dimensional structure of the first gear of the present invention.

[0030] Figure 4 It is a schematic diagram of the local three-dimensional structure of the present invention.

[0031] Figure 5 It is a schematic diagram of the three-dimensional structure of the shell of the present invention.

[0032] Figure 6 It is a schematic diagram of the internal three-dimensional structure of the shell of the present invention.

[0033] Figure 7 It is a schematic diagram of the explosion structure of the limiting block of the present invention.

[0034] Figure 8 For the present invention Figure 2 Enlarged structural diagram at A in the middle.

[0035] In the figure: 100, base; 110, support seat; 111, movable block; 112, bolt; 113, one-way bearing; 114, shaft; 115, rotating wheel; 116, pedal; 117, first gear; 118, first rack; 119, air pipe; 1191, spacer; 1192, air hole; 1193, bump; 120, mounting seat; 130, housing; 131, slide bar; 132, handle; 140, screw rod; 1 41. Damping bearing; 150. Thread sleeve; 160. Clamping rod; 170. Clamping plate; 171. First spring; 180. Second gear; 190. Second rack; 200. Block; 210. Limit block; 220. Mounting plate; 221. Second spring; 222. Limit plate; 230. Third spring; 240. First wedge block; 241. Second wedge block; 242. Button; 250. Connecting block; 251. Connecting groove. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on 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.

[0037] Embodiment 1: This embodiment aims to solve the problem that in the process of cranial surgery, the prior art usually uses a surgical towel clamp to clamp the muscle flap, the gauze loop is passed through the handle ring of the surgical towel clamp, the handle is clamped tightly, and then the surgical towel clamp is used to fix the loose end of the gauze to the drape, so as to position the muscle flap. However, the doctor needs to operate manually throughout the process, which is time-consuming, labor-intensive and inefficient. Please refer to Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 8 A cranial surgery positioning device includes a base 100 and a support seat 110 slidably inserted inside the base 100 , the upper end of the support seat 110 is located outside the base 100 , and the top of the support seat 110 is fixedly connected to a mounting seat 120 .

[0038] A shell 130 is slidably arranged on the side of the mounting seat 120, and a slide bar 131 is fixedly arranged on the outer side of the shell 130. A groove body used in conjunction with the slide bar 131 is opened on the side of the mounting seat 120, and the slide bar 131 is slidably inserted in the groove body of the mounting seat 120. A handle 132 is also installed on the outer side of the shell 130, which is convenient for holding the handle 132 to pull the shell 130. A screw rod 140 is rotatably arranged inside the shell 130, and a silk sleeve 150 is threadedly connected to the middle part of the screw rod 140. A clamping rod 160 is fixedly arranged on the outer side of the silk sleeve 150, and the end of the clamping rod 160 is arranged outside the shell 130. A clamping piece 170 is slidably arranged on the end of the clamping rod 160, and the clamping piece 170 is used to clamp and position the muscle flap.

[0039] Both ends of the screw rod 140 are provided with damping bearings 141 through interference sleeves, and the two damping bearings 141 are respectively inserted in the upper and lower sides of the shell 130 through interference. The screw rod 140 is set as a bidirectional screw, and the number of the wire sleeves 150 is set to two. The two wire sleeves 150 are respectively threadedly connected to the reverse threads of the screw rod 140. The number of the clamping rods 160 and the clamping plates 170 are both set to two. A socket is provided on the side wall of the shell 130, and the ends of the clamping rods 160 are arranged on the outside of the shell 130 through the socket. The two clamping plates 170 are respectively arranged at the ends of the two clamping rods 160. A groove is provided at the end of the clamping rod 160, and the clamping plate 170 is slidably inserted in the groove at the end of the clamping rod 160. A first spring 171 is fixedly installed on the outside of the clamping plate 170, and the two ends of the first spring 171 are respectively fixedly connected to the inner walls of the clamping plate 170 and the clamping rod 160.

[0040] A second gear 180 is fixedly installed at the end of the screw rod 140, and a second rack 190 is fixedly installed on the side of the mounting seat 120. The moving distance of the second gear 180 is greater than the length of the second rack 190, so that the second gear 180 can be moved away from the second rack 190 through the end of the second rack 190, so that the second rack 190 and the second gear 180 are intermittently meshed. A clamping block 200 is fixedly installed at the bottom of the shell 130, and a limit block 210 is movably provided on the inner side of the mounting seat 120.

[0041] Both the card block 200 and the limit block 210 are provided with trapezoidal blocks, and a number of limit blocks 210 are evenly arranged horizontally. A mounting plate 220 is slidably provided on the inner side of the mounting seat 120, and a number of grooves are provided on the upper side of the mounting plate 220. The limit blocks 210 are slidably inserted in the grooves respectively. A second spring 221 is fixedly installed at the bottom of the limit block 210, and the two ends of the second spring 221 are respectively fixedly connected to the limit block 210 and the inner wall of the mounting plate 220. A limit piece 222 is fixedly installed on the outer side of the limit block 210, and a slide groove used in conjunction with the limit piece 222 is provided on the inner side of the mounting plate 220. The limit piece 222 is slidably inserted in the slide groove on the inner side of the mounting plate 220 to prevent the limit block 210 from detaching from the mounting plate 220. The card block 200 and the limit block 210 are used in conjunction with each other to fix the position of the shell 130.

[0042] In this embodiment: by adjusting the height of the support seat 110, the height of the mounting seat 120 and the housing 130 are adjusted, so that the clamping rod 160 is close to the patient's myocutaneous flap, and the two clamping rods 160 are respectively placed on the upper and lower sides of the myocutaneous flap, the handle 132 is held, and the housing 130 is pulled backward, and the second gear 180 is engaged with the second rack 190, so that the second gear 180 drives the screw rod 140 to rotate, and then the screw rod 140 and the threaded fitting of the silk sleeve 150 drive the two clamping rods 160 to approach each other, so that the two clamping pieces 170 are in conflict with the myocutaneous flap, so that the first spring 171 is compressed, so that the clamping piece 170 clamps the myocutaneous flap;

[0043] The housing 130 is further pulled back to separate the second gear 180 from the second rack 190. At the same time, the housing 130 drives the clamping rod 160 to move backward, thereby pulling the muscle flap backward to expose the patient's skull. Moreover, the housing 130 drives the block 200 to move, so that the inclined surface of the block 200 presses the limiting block 210 downward by being squeezed with the inclined surface of the limiting block 210, and squeezes the second spring 221, so that the block 200 passes over the limiting block 210, and then the limiting block 210 moves up and resets under the action of the rebound force of the second spring 221, so that the block 200 The vertical surface of block 200 conflicts with the vertical surface of limit block 210, and the block 200 is positioned, so that the muscle flap is quickly positioned through the clamping piece 170, thereby improving the efficiency of positioning the muscle flap during cranial surgery and solving the problem as much as possible that during cranial surgery, the prior art usually uses a surgical towel clamp to clamp the muscle flap, the gauze loop is passed through the handle ring of the surgical towel clamp, the handle is clamped tightly, and then the surgical towel clamp is used to fix the loose end of the gauze to the drape, so as to position the muscle flap, but the doctor needs to operate manually throughout the process, which is time-consuming, labor-intensive and inefficient.

[0044] Embodiment 2: This embodiment is intended to solve the problem that it is inconvenient to adjust the height of the support seat 110, which makes it inconvenient to move the clamping rod 160 to a suitable position, and thus it is inconvenient to clamp and position the patient's muscle flap. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 The support seat 110 is slidably inserted into the upper end of the base 100, and a movable block 111 is slidably inserted into the inner side of the base 100. A bolt 112 is rotatably inserted into the side of the movable block 111. The bolt 112 is threadedly connected to the side of the base 100, and the end of the bolt 112 is arranged on the outside of the base 100.

[0045] A one-way bearing 113 is installed on the inner side of the movable block 111, and a shaft 114 is inserted in the one-way bearing 113 through interference fit. The shaft 114 is fixedly fitted with the inner ring of the one-way bearing 113, and the inner wall of the movable block 111 is fixedly fitted with the outer ring of the one-way bearing 113. Both ends of the shaft 114 are arranged on the outside of the movable block 111, and a rotating wheel 115 is fixedly installed on one end of the shaft 114. A pedal 116 is fixedly installed on the outside of the rotating wheel 115. The number of pedals 116 is set to be several, and several pedals 116 are evenly installed on the outside of the rotating wheel 115 in a circumferential direction. A notch is opened on the side wall of the base 100, and the pedal 116 close to the notch is arranged on the outside of the base 100 through the notch.

[0046] A first gear 117 is fixedly installed at the other end of the shaft 114, and a first rack 118 is fixedly installed at the bottom of the support seat 110. The first rack 118 is intermittently meshed with the first gear 117. A ratchet structure is arranged between the inner ring and the outer ring of the one-way bearing 113. When the foot steps down on the pedal 116, the inner ring and the outer ring of the one-way bearing 113 rotate relative to each other, so that the rotating wheel 115 drives the first gear 117 to rotate synchronously through the shaft 114; when the foot releases the pedal 116, the inner ring and the outer ring of the one-way bearing 113 are relatively stationary, so that the first gear 117 remains stationary.

[0047] An air pipe 119 is installed on the inner side of the base 100. The air pipe 119 is configured as a hose and is filled with air or argon, wherein argon is a rare gas with stable chemical properties. A diaphragm 1191 is arranged inside the air pipe 119. The diaphragm 1191 is configured as a soft disc. The outer side of the diaphragm 1191 is fixedly connected to the inside of the air pipe 119. The number of diaphragms 1191 is set to be several, and several diaphragms 1191 are vertically and evenly arranged inside the air pipe 119 to divide the internal space of the air pipe 119. Air holes 1192 are opened in the middle of the diaphragms 1191. A protrusion 1193 is fixedly installed on the outer side of the first rack 118, and the protrusion 1193 is squeezed on the outer side of the air pipe 119.

[0048] In this embodiment: when the foot steps on the pedal 116 downward, the inner ring and the outer ring of the one-way bearing 113 rotate relatively, so that the rotating wheel 115 drives the first gear 117 to rotate synchronously through the shaft 114, and the first gear 117 is meshed with the first rack 118, so that the first rack 118 drives the support seat 110 to move upward, so that the support seat 110 drives the mounting seat 120 to move upward; when the foot releases the pedal 116, the inner ring and the outer ring of the one-way bearing 113 are relatively still, so that the first gear 117 remains still, and the height of the mounting seat 120 is maintained through the engagement between the first gear 117 and the first rack 118, so that the clamping rod 160 is moved to a suitable position, so as to facilitate the clamping and positioning of the patient's muscle flap;

[0049] Furthermore, by tightening the bolt 112, the movable block 111 drives the first gear 117 away from the first rack 118, thereby disengaging from the first rack 118, causing the support seat 110 and the mounting seat 120 to descend under the action of gravity. At the same time, the protrusion 1193 squeezes the air pipe 119, causing the gas in the air pipe 119 to flow slowly through the air hole 1192, thereby causing the mounting seat 120 to descend slowly and steadily.

[0050] Embodiment 3: This embodiment is intended to promote the solution of the problem that it is inconvenient to release the limiting effect of the limiting block 210 on the card block 200, thereby making it inconvenient to reset the housing 130. This embodiment is an improvement made on the basis of Embodiment 1. For details, please refer to Figure 1 , Figure 2 , Figure 7 and Figure 8 A third spring 230 is fixedly installed at the bottom of the mounting plate 220, and the two ends of the third spring 230 are fixedly connected to the bottom of the mounting plate 220 and the inner wall of the mounting seat 120 respectively. A first wedge block 240 is also fixedly installed on the outer side of the mounting plate 220, and a second wedge block 241 is slidably provided on the inner side of the mounting seat 120. The inclined surface of the first wedge block 240 and the inclined surface of the second wedge block 241 slide relative to each other, so that the first wedge block 240 and the second wedge block 241 are used in conjunction with each other, and a button 242 is fixedly installed on the outer side of the second wedge block 241, and the middle part of the button 242 is slidably inserted into the side wall of the mounting seat 120.

[0051] A connecting block 250 is fixedly installed on the inclined surface of the first wedge block 240, and the connecting block 250 is set to be a sphere. A connecting groove 251 used in conjunction with the connecting block 250 is opened on the inclined surface of the second wedge block 241, and the connecting block 250 is slidably inserted into the inner side of the connecting groove 251, thereby preventing the first wedge block 240 and the second wedge block 241 from separating.

[0052] In this embodiment, the button 242 is pressed inward, so that the button 242 drives the second wedge block 241 to move. Through the cooperation of the first wedge block 240 and the second wedge block 241, the first wedge block 240 drives the mounting plate 220 to move downward, and the third spring 230 is squeezed, so that the mounting plate 220 drives the limit block 210 to move downward and separate from the block 200, so as to release the limit effect of the limit block 210 on the block 200, thereby facilitating the forward pushing of the housing 130 and resetting the housing 130.

[0053] After the housing 130 is reset, the button 242 is released, and under the action of the rebound force of the third spring 230, the mounting plate 220 drives the limiting block 210 to move upward and reset.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A cranial surgery positioning device, comprising a base (100) and a support seat (110) slidably inserted inside the base (100), characterized in that: The upper end of the support seat (110) is located outside the base (100), and the top end of the support seat (110) is connected to the mounting seat (120), and a shell (130) is slidably arranged on the side of the mounting seat (120), and a screw rod (140) is rotatably arranged inside the shell (130), and a threaded sleeve (150) is threadedly connected to the middle of the screw rod (140), and a clamping rod (160) is installed on the outside of the threaded sleeve (150), and the end of the clamping rod (160) is arranged outside the shell (130), and a clamping sheet (170) is slidably arranged on the end of the clamping rod (160). 0), the clamping piece (170) is used to clamp and position the muscle flap, a second gear (180) is installed at the end of the screw rod (140), a second rack (190) is installed on the side of the mounting seat (120), the second rack (190) and the second gear (180) are intermittently meshed, a clamping block (200) is installed at the bottom of the shell (130), a limit block (210) is movably provided inside the mounting seat (120), and the clamping block (200) and the limit block (210) are used in conjunction with each other to fix the position of the shell (130); A slide bar (131) is installed on the outside of the shell (130), a groove body for use with the slide bar (131) is opened on the side of the mounting seat (120), and the slide bar (131) is slidably inserted in the groove body of the mounting seat (120). A handle (132) is also installed on the outside of the shell (130), and damping bearings (141) are sleeved on both ends of the screw rod (140), and the two damping bearings (141) are respectively inserted on the upper and lower sides of the shell (130); the screw rod (140) is configured as a bidirectional screw. The number of the thread sleeves (150) is set to two, and the two thread sleeves (150) are respectively threadedly connected to the reverse threads of the threaded rod (140). The number of the clamping rods (160) and the clamping plates (170) are both set to two. A socket is provided on the side wall of the housing (130), and the end of the clamping rod (160) passes through the socket and is arranged outside the housing (130). The two clamping plates (170) are respectively arranged at the ends of the two clamping rods (160) opposite to each other. A groove is provided at the end of the clamping rod (160). The clamping piece (170) is slidably inserted into the groove at the end of the clamping rod (160), and a first spring (171) is installed on the outside of the clamping piece (170), and the two ends of the first spring (171) are respectively connected to the inner wall of the clamping piece (170) and the clamping rod (160); the clamping block (200) and the limit block (210) are both provided with trapezoidal blocks, and a plurality of limit blocks (210) are evenly arranged in the horizontal direction; a mounting plate (220) is slidably arranged on the inside of the mounting seat (120), and the mounting plate (220) is provided with a plurality of A groove is provided on the side, the limit block (210) is slidably inserted in the groove, a second spring (221) is installed at the bottom of the limit block (210), two ends of the second spring (221) are respectively connected to the limit block (210) and the inner wall of the mounting plate (220), a limit plate (222) is installed on the outer side of the limit block (210), and a sliding groove for use with the limit plate (222) is provided on the inner side of the mounting plate (220), and the limit plate (222) is slidably inserted in the sliding groove on the inner side of the mounting plate (220).

2. A cranial surgery positioning device according to claim 1, characterized in that: The support seat (110) is slidably inserted into the upper end of the base (100); a movable block (111) is slidably inserted into the inner side of the base (100); a bolt (112) is rotatably inserted into the side of the movable block (111); the bolt (112) is threadedly connected to the side of the base (100), and the end of the bolt (112) is arranged outside the base (100).

3. A cranial surgery positioning device according to claim 2, characterized in that: A one-way bearing (113) is installed inside the movable block (111), a shaft (114) is inserted inside the one-way bearing (113), the shaft (114) is in contact with the inner ring of the one-way bearing (113), the inner wall of the movable block (111) is in contact with the outer ring of the one-way bearing (113), and both ends of the shaft (114) are arranged outside the movable block (111); A rotating wheel (115) is mounted on one end of the shaft (114), a pedal (116) is mounted on the outside of the rotating wheel (115), the number of the pedals (116) is set to be a plurality, and the plurality of pedals (116) are evenly mounted on the outside of the rotating wheel (115) in a circumferential direction, a notch is opened on the side wall of the base (100), and the pedal (116) close to the notch is arranged on the outside of the base (100) through the notch; A first gear (117) is mounted on the other end of the shaft (114), and a first rack (118) is mounted on the bottom of the support seat (110), wherein the first rack (118) is intermittently meshed with the first gear (117).

4. A cranial surgery positioning device according to claim 3, characterized in that: An air pipe (119) is installed on the inner side of the base (100), the air pipe (119) is configured as a hose, the air pipe (119) is filled with gas, a spacer (1191) is arranged inside the air pipe (119), the spacer (1191) is configured as a soft disc, the outer side of the spacer (1191) is connected to the inside of the air pipe (119), the number of the spacers (1191) is set to be a plurality, and the plurality of spacers (1191) are evenly arranged vertically inside the air pipe (119), the middle part of each spacer (1191) is provided with an air hole (1192), and a protrusion (1193) is installed on the outer side of the first rack (118), the protrusion (1193) is pressed against the outer side of the air pipe (119).

5. A cranial surgery positioning device according to claim 1, characterized in that: A third spring (230) is installed at the bottom of the mounting plate (220), and two ends of the third spring (230) are respectively connected to the bottom of the mounting plate (220) and the inner wall of the mounting seat (120).

6. A cranial surgery positioning device according to claim 1, characterized in that: A first wedge block (240) is also installed on the outside of the mounting plate (220), and a second wedge block (241) is slidably arranged on the inside of the mounting seat (120). The first wedge block (240) and the second wedge block (241) are used in conjunction with each other, and a button (242) is installed on the outside of the second wedge block (241). The middle part of the button (242) is slidably inserted into the side wall of the mounting seat (120).

7. A cranial surgery positioning device according to claim 6, characterized in that: A connecting block (250) is mounted on the inclined surface of the first wedge-shaped block (240), a connecting groove (251) for use with the connecting block (250) is provided on the inclined surface of the second wedge-shaped block (241), and the connecting block (250) is slidably inserted inside the connecting groove (251).

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