A neurosurgical hand stabilizer

Abstract

This invention discloses a hand stabilizer for neurosurgery, belonging to the field of surgical aids technology. It includes: a disc; a carrier plate rotatably mounted on the disc; an arm support plate mounted on the carrier plate, the arm support plate comprising an arc-shaped plate, a front side plate, and a rear side plate. The front end of the arc-shaped plate has a slot, and the rear end of the arc-shaped plate has a first sliding groove. A pressure plate slides longitudinally within the first sliding groove, and the pressure plate is elastically connected to the carrier plate; an outer cylinder located on the arm support plate, with a locking block hinged to its lower front end, the locking block engaging with the slot; an inner cylinder sliding coaxially inside the outer cylinder, and a locking assembly between the inner and outer cylinders; a locking plate located below the front end of the arc-shaped plate, sliding on the carrier plate, with a protrusion on its front side and a slot on its rear side; a transmission assembly located between the locking plate and the pressure plate; and an adjustment bracket. By setting the arm support plate and the outer cylinder as a separate structure, the surgeon's arm can move freely after wearing the inner cylinder.

Description

Technical Field

[0001] This invention belongs to the field of surgical aids technology, and particularly relates to a hand stabilizer for neurosurgery. Background Technology

[0002] Neurosurgery, generally referring to neurosurgery, is a comprehensive treatment and evaluation discipline that utilizes neurosurgery, primarily through examination and secondarily through surgery. It is one of the youngest, most complex, and fastest-growing branches of medicine. Previously, due to technological limitations, brain surgery was considered a forbidden zone. However, with advancements in technology, various microsurgical neurosurgical procedures can now be performed using advanced microsurgical equipment. Due to the delicate and complex nature of neurosurgery, the surgeon's prolonged suspension of the forearm during surgery can easily lead to fatigue, soreness, and tremors, affecting the stability of the procedure.

[0003] For example, Chinese Patent Publication No. CN113855277B discloses a hand stabilizer for neurosurgery, including a movable tube placed at the bottom of the forearm, a forearm sleeve that can slide along its length connected to the front end of the movable tube, a stabilizing rod rotatably connected near the rear end of the movable tube, an upper arm sleeve for clamping the upper arm at the top of the stabilizing rod, and a stabilizing device hinged between the rear end of the movable tube and the upper half of the stabilizing rod. This invention stabilizes and fixes the angle of the forearm and upper arm through the movable tube, the forearm sleeve, and the upper arm sleeve located above the rear end of the movable tube, providing mechanical support and facilitating stable surgery. The stabilizing device between the movable tube and the stabilizing rod utilizes the viscosity of the hydraulic oil in the reservoir and the flow resistance of the small orifice of the oil outlet to create a damping effect, eliminating forearm tremors and further ensuring stable surgery for the surgeon.

[0004] However, the existing technology still has the following problems: When doctors wear forearm and upper arm sleeves during surgery, this situation will restrict the range of motion of the doctor's arm, affecting the normal progress of the surgery. If the hand stabilizer is used after the doctor's arm becomes sore, it will take a lot of time and affect the normal progress of the surgery. In addition, the doctor's arm soreness mainly comes from the long-term suspension during surgery. In the above solution, the doctor's arm will not have obvious soreness in the early stage of surgery. At this time, due to the restriction of the forearm and upper arm sleeves, it may further increase the burden on the doctor's arm. Summary of the Invention

[0005] This invention provides a hand stabilizer for neurosurgery to address the problems in the prior art.

[0006] The present invention adopts the following technical solution: a neurosurgical hand stabilizer, comprising: a disc; a carrier plate rotatably disposed on the disc; an arm support plate disposed on the carrier plate, the arm support plate comprising a transversely arranged arc-shaped plate and a front side plate and a rear side plate extending downward from the front and rear ends of the arc-shaped plate, the front side plate and the rear side plate being fixedly connected to the carrier plate, the front end of the arc-shaped plate being provided with a slot, the rear end of the arc-shaped plate being provided with a first sliding groove, a pressure plate being longitudinally slidably disposed in the first sliding groove, the pressure plate being elastically connected to the carrier plate; an outer cylinder located on the arm support plate, the lower front end of the outer cylinder being hinged with a locking block, the locking block being inserted into the slot, an inner cylinder being coaxially slidably disposed inside the outer cylinder, a locking assembly being provided between the inner cylinder and the outer cylinder, the locking assembly being used to adjust the position of the inner cylinder within the outer cylinder, and both ends of the inner cylinder being connected to a magic... The system includes: a cuff; a locking plate located below the front end of the curved plate, the locking plate being slidably mounted on the carrier plate, the sliding direction of the locking plate being consistent with the length direction of the curved plate, a protrusion on the front side of the locking plate, and a slot on the rear side of the locking plate that engages with the protrusion; a transmission assembly located between the locking plate and the pressure plate, which, when the pressure plate descends, drives the locking plate to move towards the rear end of the curved plate; and an adjusting bracket for supporting the disc, the adjusting bracket allowing for multi-degree-of-freedom adjustment of the disc's position; by setting the arm support plate and the outer cylinder as a separate structure, and connecting them together via locking blocks and slots, the doctor can wear the outer and inner cylinders on their forearm before surgery, allowing the doctor's arm to move freely. During surgery, the outer and inner cylinders can move with the doctor's arm without restricting the doctor's movement space, facilitating the surgery.

[0007] Furthermore, the transmission assembly includes: a first connecting rod hinged to the lower end of the front side of the pressure plate; a first slider disposed on the rear side of the clamping plate, wherein the rear end of the clamping plate is provided with a longitudinal linear groove, the first slider is slidably disposed in the linear groove, a second connecting rod is hinged to the first slider, the other end of the second connecting rod is provided with a limiting groove extending along its length direction, the first connecting rod is slidably disposed in the limiting groove; and a hinge seat mounted on the carrier plate, wherein the middle part of the second connecting rod is hinged to the hinge seat; under the action of the first connecting rod, the second connecting rod, and the first slider, the clamping plate can be moved forward or backward, thereby achieving the locking effect of the clamping block. The doctor's arm can be stably placed on the arc plate with a simple elbow movement, which facilitates the doctor's operation and ensures the stability of the doctor's arm during surgery, avoiding affecting the progress of the surgery.

[0008] Furthermore, the top of the outer cylinder is connected to a strip-shaped cover that runs parallel to its length. The strip-shaped cover is connected to the interior of the outer cylinder. Two strip-shaped plates extending along the length direction are provided on both sides of the bottom of the strip-shaped cover. The top outer wall of the inner cylinder is set as a plane, and the two strip-shaped plates abut against the plane and are slidably connected to the plane.

[0009] Furthermore, the locking assembly includes: a rectangular plate slidably disposed longitudinally within the strip cover, the length direction of the rectangular plate being consistent with the length direction of the strip cover, the rectangular plate being elastically connected to the two strip plates, a plurality of first wedges being equidistantly distributed at the lower end of the rectangular plate, the inclined surface of the first wedges being inclined upward from their lower end to their front end, a pull rod being provided at the top of the rectangular plate, and a clearance hole being provided on the strip cover, the pull rod passing through the clearance hole to the top of the strip cover; and a plurality of second wedges fixedly connected to the plane, the plurality of second wedges being equidistantly distributed along the axial direction of the inner cylinder, the inclined surface of the second wedges being inclined downward from their top end to their rear end, the distance between adjacent second wedges being equal to the distance between adjacent first wedges; under the action of the plurality of first wedges and the plurality of second wedges, when there is no extra operation, the inner cylinder can only move the doctor's arm backward, restricting the doctor's arm from moving forward, thus relieving the doctor's arm from soreness while ensuring the safety of the doctor's surgical procedure.

[0010] Furthermore, each strip plate is provided with two guide posts extending longitudinally to the top of the strip cover. The rectangular plate is provided with multiple guide holes that slide and engage with the multiple guide posts respectively. Each guide post is fitted with a first spring, which is located between the strip cover and the corresponding rectangular plate.

[0011] Furthermore, a push block is slidably connected to the rear top end of the arc-shaped plate. The sliding direction of the push block is consistent with the length direction of the arc-shaped plate. The rear end of the push block is provided with an inner inclined surface extending downward towards its lower end. The top of the pressure plate is provided with an outer inclined surface extending downward towards its front end. The inner and outer inclined surfaces slide in cooperation. With the push block, the doctor's elbow can be moved backward or forward to achieve the engagement or separation between the outer cylinder and the arc-shaped plate, further simplifying the doctor's elbow operation and making the surgery more convenient.

[0012] Furthermore, the bottom of the pressure plate is provided with two longitudinally extending guide holes, and the carrier plate is provided with two longitudinally extending guide rods. The two guide rods are slidably disposed in the two guide holes, and a second spring is sleeved on each guide rod. The second spring is located between the pressure plate and the carrier plate.

[0013] Furthermore, the carrier plate is provided with two linear guide rails in the same direction as the arc plate, and the lower end of the clamping plate is provided with guide grooves that slide in cooperation with the two linear guide rails respectively.

[0014] Furthermore, the adjusting bracket includes: a base plate located below the disc; two first electric telescopic rods hinged to the upper part of the base plate, the two first electric telescopic rods being arranged in parallel, and the actuating ends of the two first electric telescopic rods being hinged to the lower end of the disc; and a second electric telescopic rod hinged to the base plate, the actuating end of the second electric telescopic rod being hinged to an annular sleeve, the annular sleeve being fixedly fitted onto the outer shell of one of the first electric telescopic rods.

[0015] Furthermore, both ends of the carrier plate are provided with a first arc-shaped block extending longitudinally downward, and both first arc-shaped blocks are rotatably engaged with the disk. The bottom of both first arc-shaped blocks is provided with a second arc-shaped block extending laterally inward. The outer peripheral wall of the disk is provided with an annular groove coaxial with it, and both second arc-shaped blocks are rotatably engaged with the annular groove.

[0016] The above-described at least one technical solution adopted in the embodiments of the present invention can achieve the following beneficial effects:

[0017] Firstly, this invention features a separate structure for the arm support plate and the outer cylinder, which can be engaged with each other via locking blocks and slots. Before surgery, the doctor can wear the outer and inner cylinders on their forearm, allowing for free movement of the arm. During surgery, the outer and inner cylinders move with the doctor's arm without restricting their movement, facilitating the procedure. By moving the doctor's elbow backward and pressing down on the pressure plate, the outer cylinder can be stably engaged with the curved plate via the transmission components and the movement of the locking plate. The doctor can adjust the engagement or disengagement of the outer cylinder and the curved plate based on their own arm pain sensation, thus relieving arm pain without affecting the surgical procedure.

[0018] Secondly, considering the somewhat cumbersome operation of the doctor moving their elbow backward and pressing down to lower the pressure plate, a sliding pusher block is provided on the curved plate as an alternative implementation method. In this case, the doctor only needs to push the pusher block backward, and the pressure plate will descend under the sliding action of the inner and outer inclined surfaces. Similarly, when the doctor moves their elbow forward, the pressure plate and pusher block will self-reset under the action of the second spring. Thus, the engagement or disengagement between the outer cylinder and the curved plate can be achieved simply by moving the doctor's elbow backward and forward, further simplifying the doctor's elbow operation and making the surgery more convenient. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0020] Figure 1This is the front view of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 3 This is a partial three-dimensional structural diagram of the present invention;

[0023] Figure 4 This is a partial three-dimensional structural cross-sectional view of the present invention;

[0024] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0025] Figure 6 This is a partial structural cross-sectional view of the carrier plate, arm support plate, and pressure plate of the present invention;

[0026] Figure 7 This is an exploded view of the arm support plate, pressure plate, push block, outer cylinder, and locking block of the present invention;

[0027] Figure 8 for Figure 7 Enlarged view of point B in the middle;

[0028] Figure 9 This is a cross-sectional view of the inner cylinder, outer cylinder, and locking assembly of the present invention. Figure 1 ;

[0029] Figure 10 This is a partial exploded view of the inner cylinder, outer cylinder, and locking assembly of the present invention;

[0030] Figure 11 This is a cross-sectional view of the inner cylinder, outer cylinder, and locking assembly of the present invention. Figure 2 ;

[0031] Figure 12 This is an exploded sectional view of the carrier plate and disk of the present invention;

[0032] Figure Labels

[0033] 1-Disc; 11-Annular groove; 2-Carrier plate; 21-Guide rod; 22-Second spring; 23-Linear guide rail; 24-First arc-shaped block; 25-Second arc-shaped block; 3-Arm support plate; 31-Arch-shaped plate; 311-Slot; 312-First slide groove; 313-Second slide groove; 32-Front side plate; 33-Rear side plate; 34-Pressure plate; 341-Outer bevel; 342-Guide hole; 35-Clamping plate; 351-Protrusion; 352-Linear slide groove; 353-Guide groove; 4-Outer cylinder; 41-Clamping block; 411-Slot; 42-Inner cylinder; 421-Hook and loop cuff; 422-Plane; 43-Strip cover; 431-Strip plate; 432-Allowing hole; 5-Locking assembly; 51-Rectangular plate; 511-First wedge; 512-Guide hole; 52-Pull rod; 53-Second wedge; 54-Guide post; 55-First spring; 6-Transmission assembly; 61-First connecting rod; 62-First slider; 63-Second connecting rod; 631-Limiting groove; 64-Hinge seat; 7-Adjusting bracket; 71-Base plate; 72-First electric telescopic rod; 73-Second electric telescopic rod; 74-Annular sleeve; 8-Push block; 81-Inner inclined surface; 82-Second slider. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0035] The technical solutions provided by the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0036] Reference Figures 1 to 12 As shown, this embodiment of the invention provides a hand stabilizer for neurosurgery, comprising: a disc 1; a carrier plate 2 rotatably disposed on the disc 1, wherein both ends of the carrier plate 2 are provided with longitudinally downward extending first arc-shaped blocks 24, both first arc-shaped blocks 24 are rotatably engaged with the disc 1, and the bottom of both first arc-shaped blocks 24 are provided with second arc-shaped blocks 25 extending laterally inward, and the outer peripheral wall of the disc 1 is provided with an annular groove 11 coaxial with it, both second arc-shaped blocks 25 are rotatably engaged with the annular groove 11. It should be noted that the carrier plate 2 can rotate on the disc 1 through the two second arc-shaped blocks 25 and the two first arc-shaped blocks 24, and this rotation should have a certain degree of damping to avoid the carrier plate 2 being too flexible;

[0037] An arm support plate 3 is mounted on a carrier plate 2. The arm support plate 3 includes a laterally arranged arc-shaped plate 31 and a front side plate 32 and a rear side plate 33 extending downward from the front and rear ends of the arc-shaped plate 31, respectively. The front side plate 32 and the rear side plate 33 are both fixedly connected to the carrier plate 2. The front end of the arc-shaped plate 31 is provided with a slot 311, and the rear end of the arc-shaped plate 31 is provided with a first sliding groove 312. A pressure plate 34 is longitudinally slidably disposed in the first sliding groove 312. The pressure plate 34 is elastically connected to the carrier plate 2. By providing two longitudinally extending guide holes 342 at the bottom of the pressure plate 34, and providing two longitudinally extending guide rods 21 on the carrier plate 2, the two guide rods 21 are slidably disposed in the two guide holes 342, and each guide rod 21 is fitted with a second spring 22. The second spring 22 is located between the pressure plate 34 and the carrier plate 2, so that the carrier plate 2 can always elastically support the pressure plate 34 under the elastic force of the two second springs 22, and the pressure plate 34 will always be in the upper limit position when there is no force.

[0038] An outer cylinder 4 is located on the arm support plate 3. A locking block 41 is hinged to the lower front end of the outer cylinder 4, and the locking block 41 engages with a locking groove 311. An inner cylinder 42 is slidably disposed coaxially inside the outer cylinder 4. A locking assembly 5 is provided between the inner cylinder 42 and the outer cylinder 4. The locking assembly 5 is used to adjust the position of the inner cylinder 42 within the outer cylinder 4. Velcro cuffs 421 are connected to both ends of the inner cylinder 42. A locking plate 35 is located below the front end of the curved plate 31 and is slidably disposed on the carrier plate 2. The sliding direction of the card plate 35 is consistent with the length direction of the arc plate 31. By providing two linear guide rails 23 in the same direction as the arc plate 31 on the carrier plate 2, and the lower end of the card plate 35 is provided with guide grooves 353 that slide and cooperate with the two linear guide rails 23 respectively, the technical effect of the card plate 35 slidingly disposed on the carrier plate 2 along the length direction of the arc plate 31 is achieved. The front side of the card plate 35 is provided with a protrusion 351, and the rear side of the card block 41 is provided with a slot 411 that is inserted and cooperates with the protrusion 351.

[0039] A transmission assembly 6 is provided between the clamping plate 35 and the pressure plate 34. When the pressure plate 34 descends, the transmission assembly 6 can drive the clamping plate 35 to move towards the rear end of the arc plate 31; and an adjustment bracket 7 is used to support the disc 1. The adjustment bracket 7 can adjust the position of the disc 1 with multiple degrees of freedom.

[0040] In this embodiment, the locking block 41 and the outer cylinder 4 should be connected by a damping pivot shaft to achieve the technical effect of the locking block 41 being hinged to the outer cylinder 4. Simultaneously, the locking block 41 also possesses a certain degree of damping during rotation, thus preventing the locking block 41 from rotating and affecting the doctor's operation and concentration when the doctor's arm moves the inner cylinder 42 and outer cylinder 4 with large amplitude movements. In actual use of the neurosurgical hand stabilizer: during the surgical preparation stage, the adjusting bracket 7 is placed beside the operating table. The doctor needs to first adjust the position of the disc 1 using the adjusting bracket 7 to move the disc 1 to a position suitable for the doctor's surgical approach. During the procedure, if a temporary rest is needed, and the position of the disc 1 is not to affect the doctor's surgical operation, the doctor can remove the outer tube 4, inner tube 42, and clip 41 from the arm support plate 3. The doctor inserts their forearm into the inner tube 42 and pulls and attaches it through the Velcro cuffs 421 at both ends of the inner tube 42. This ensures that the inner tube 42 is stable on the doctor's forearm. During the operation, since the outer tube 4 and inner tube 42 can move with the doctor's arm, the doctor's arm can move normally to perform the operation without soreness, without restricting the doctor's arm movement space, ensuring the operation proceeds normally.

[0041] After brain surgery, the surgeon's arm may feel sore. At this time, the surgeon can move their arm directly above the curved plate 31 and insert the locking block 41 on the lower side of the outer cylinder 4 into the locking slot 311. Since the pressure plate 34 is in its upper limit position without force, and the locking plate 35 is also in its front limit position under the action of the transmission component 6, the locking block 41 cannot descend further under the action of the protrusion 351 on the locking plate 35. Then, the surgeon moves their elbow backward and presses down on the pressure plate 34, which moves the pressure plate 34 to its lower limit position. Under the action of the transmission component 6, the locking plate 35 will move backward and be in its rear limit position. As the doctor's arm continues to descend, the locking block 41 can be fully inserted into the slot 311. Then, the locking assembly 5 adjusts the position of the inner cylinder 42 within the outer cylinder 4, causing the inner cylinder 42 to move forward. When the doctor's elbow moves forward with the inner cylinder 42 and disengages from the pressure plate 34, the pressure plate 34, under elastic action, will move back to its upper limit. At this time, the locking plate 35 will also move to its front limit, and the protrusion 351 on the locking plate 35 will insert into the slot 411 on the locking block 41, thus securing the outer cylinder 4 onto the arc-shaped plate 31. The doctor's arm can then rest briefly on the arm support plate 3, relieving the doctor's discomfort. The surgeon experiences arm pain. In this situation, the surgeon can adjust the direction of their hand by rotating the carrier plate 2. Through the hinge between the locking block 41 and the outer cylinder 4, the surgeon's arm can tilt forward at a certain angle. This allows the surgeon to adjust the angle of their arm to continue the surgical procedure while relieving arm pain. The surgeon's hand can move within a certain range to continue the surgical procedure. The surgeon's arm is immobilized by the inner cylinder 42, ensuring the stability of the surgeon's arm and preventing the surgeon from unconsciously moving their arm forward due to arm pain, which could cause the scalpel to accidentally strike the surgeon. The surgical site is further damaged. After the doctor's arm pain is relieved, the doctor can choose to detach the outer cylinder 4 from the arc plate 31 by adjusting the position of the inner cylinder 42 through the locking component 5, so that the inner cylinder 42 moves to the rear side, thereby allowing the doctor's elbow to move to the pressure plate 34 again. Under the action of the latch 41 and the outer cylinder 4 hinge, the doctor's arm can tilt forward and the doctor's elbow is raised above the pressure plate 34. By pressing down with the elbow, the pressure plate 34 can be moved downward, thereby detaching the protrusion 351 from the slot 411. Thus, the doctor's arm can be moved directly upward to detach the outer cylinder 4 from the arc plate 31.

[0042] By setting the arm support plate 3 and the outer cylinder 4 as a separate structure, and the two can be connected together by the locking block 41 and the locking slot 311, the doctor can wear the outer cylinder 4 and the inner cylinder 42 on his forearm before surgery. At this time, the doctor's arm can move freely. During the operation, the outer cylinder 4 and the inner cylinder 42 can move with the doctor's arm. The outer cylinder 4 and the inner cylinder 42 will not restrict the doctor's space of movement, which facilitates the operation. By moving the doctor's elbow backward and pressing down the pressure plate 34, the movement of the transmission component 6 and the locking plate 35 can realize the stable locking of the outer cylinder 4 on the arc plate 31. The doctor can adjust the locking or separation between the outer cylinder 4 and the arc plate 31 on his arm by the doctor's own pain sensation. This can relieve the doctor's own arm pain in a timely manner without affecting the doctor's surgical operation.

[0043] Specifically, the transmission assembly 6 includes: a first connecting rod 61 hinged to the lower end of the front side of the pressure plate 34; a first slider 62 disposed on the rear side of the clamping plate 35, wherein the rear end of the clamping plate 35 is provided with a longitudinal linear groove 352, the first slider 62 is slidably disposed in the linear groove 352, a second connecting rod 63 is hinged to the first slider 62, the other end of the second connecting rod 63 is provided with a limiting groove 631 extending along its length direction, the first connecting rod 61 is slidably disposed in the limiting groove 631; and a hinge seat 64 mounted on the carrier plate 2, wherein the middle position of the second connecting rod 63 is hinged to the hinge seat 64.

[0044] In this embodiment, the pressure plate 34 is in its upper limit position when there is no force. At this time, the first connecting rod 61 and the second connecting rod 63 are on the same straight line and tilt upward from the pressure plate 34 toward the clamping plate 35. The clamping plate 35 is in its front limit position, that is, the protrusion 351 on the clamping plate 35 extends into the clamping groove 311. In this case, the clamping block 41 on the outer cylinder 4 cannot descend smoothly in the clamping groove 311. When the doctor's elbow drives the pressure plate 34 to descend, the upward tilting angle of the first connecting rod 61 and the second connecting rod 63 will further increase. This will drive the first slider 62 to move upward along the straight slide groove 352. At the same time, under the dragging action of the first connecting rod 61 and the second connecting rod 63, the clamping plate 35 can move backward along the length direction of the arc plate 31, thereby making the protrusion on the clamping plate 35... 351 disengages from the slot 311, allowing the locking block 41 to smoothly insert into the slot 311. Then, as the doctor's elbow releases the pressure plate 34, the pressure plate 34 resets, and the protrusion 351 on the locking plate 35 can be inserted laterally into the slot 411, thus locking the arm support plate 3 and the outer cylinder 4. At this time, the doctor's arm can be relieved of soreness under the support of the arc plate 31. Through the downward and upward movement of the pressure plate 34, the locking plate 35 can be moved forward or backward under the action of the first connecting rod 61, the second connecting rod 63, and the first slider 62, thereby achieving the locking effect of the locking block 41. With a simple movement of the doctor's elbow, the arm can be stably placed on the arc plate 31, facilitating the doctor's operation and ensuring the stability of the doctor's arm during surgery, avoiding affecting the progress of the surgery.

[0045] Specifically, the top of the outer cylinder 4 is connected to a strip cover 43 that runs parallel to its length. The strip cover 43 is connected to the interior of the outer cylinder 4. Two strip plates 431 extending along their length are provided on both sides of the bottom of the strip cover 43. The top outer wall of the inner cylinder 42 is set as a plane 422. The two strip plates 431 abut against the plane 422 and are slidably connected to the plane 422. In this way, the inner cylinder 42 can not only slide along the axial direction of the outer cylinder 4, but also avoid relative rotation between the inner cylinder 42 and the outer cylinder 4 under the limitation of the strip plates 431 and the plane 422 on the inner cylinder 42.

[0046] The locking assembly 5 includes: a rectangular plate 51 that is longitudinally slidably disposed within the strip cover 43, the length direction of the rectangular plate 51 being consistent with the length direction of the strip cover 43, and the rectangular plate 51 being elastically connected to the two strip plates 431; by providing two guide posts 54 that extend longitudinally to the top of the strip cover 43 on each strip plate 431, and providing multiple guide holes 512 that slidably engage with the multiple guide posts 54 respectively, the rectangular plate 51 can slide up and down within the strip cover 43 under the guidance of the multiple guide posts 54, and a first spring 55 is sleeved on each guide post 54, the first spring 55 being located between the strip cover 43 and the corresponding rectangular plate 51, so that under the action of the first spring 55, the rectangular plate 51 will have a thrust pointing towards the inner cylinder 42;

[0047] The rectangular plate 51 has a plurality of first wedges 511 evenly distributed at its lower end. The inclined surface of the first wedge 511 is inclined upward from its lower end to its front end. The top of the rectangular plate 51 is also provided with a pull rod 52. The strip cover 43 is provided with a clearance hole 432. The pull rod 52 passes through the clearance hole 432 to the top of the strip cover 43. The rectangular plate 51 also has a plurality of second wedges 53 fixedly connected to the plane 422. The plurality of second wedges 53 are evenly distributed along the axial direction of the inner cylinder 42. The inclined surface of the second wedge 53 is inclined downward from its top end to its rear end. The distance between adjacent second wedges 53 is equal to the distance between adjacent first wedges 511.

[0048] In this embodiment, in the initial state, the rectangular plate 51 is pressed down by the first spring 55. Under the action of multiple first wedges 511 and second wedges 53, the inner cylinder 42 cannot move forward along the outer cylinder 4. Thus, when the doctor's arm is stabilized on the arc plate 31 to relieve soreness, the doctor can still perform surgery normally by relying on the space of hand movement. The inner cylinder 42 is unidirectionally limited, which can prevent the doctor's arm from moving forward unconsciously and causing the surgical instruments to damage the patient's surgical site. In this case, when the doctor's arm moves backward, it can drive the inner cylinder 42 to move backward together. Under the action of the inclined surfaces on the first wedges 511 and second wedges 53, the rectangular plate 51 can move up and down, so that the inner cylinder 42 can move smoothly to the rear. This means that when there are no other extra operations, the doctor's arm can only move backward, while forward movement is restricted, further ensuring the safety of the doctor during the operation. If the doctor needs to move the arm forward, the other arm or a nurse can assist in pulling the lever 52. When the rectangular plate 51 rises until the first wedge 511 is completely disengaged from the second wedge 53, the inner cylinder 42 can slide freely within the outer cylinder 4, allowing the doctor's arm to move freely forward or backward. With the action of multiple first wedges 511 and multiple second wedges 53, when there are no extra operations, the inner cylinder 42 can only move the doctor's arm backward, restricting the doctor's arm from moving forward. This can relieve the doctor's arm pain while ensuring the safety of the operation.

[0049] Specifically, a push block 8 is slidably connected to the rear top end of the arc plate 31. The sliding direction of the push block 8 is consistent with the length direction of the arc plate 31. The rear end of the push block 8 is provided with an inner inclined surface 81 extending downward towards its lower end. The top of the pressure plate 34 is provided with an outer inclined surface 341 extending downward towards its front end. The inner inclined surface 81 and the outer inclined surface 341 are slidably engaged. The push block 8 has a hollow structure, which can reduce the weight of the push block 8. A second slider 82 is also fixedly provided at the bottom of the push block 8. The arc plate 31 has a second sliding groove 313 extending forward at its sliding groove. The second slider 82 is slidably disposed in the second sliding groove 313. Through the sliding engagement of the second slider 82 and the second sliding groove 313, the sliding connection between the push block 8 and the arc plate 31 can be achieved.

[0050] In this embodiment, considering that the operation of moving the doctor's elbow backward and pressing down to move the pressure plate 34 downward is somewhat cumbersome, a sliding push block 8 is provided on the arc plate 31 as another possible implementation method. In this case, the doctor only needs to push the push block 8 backward with his elbow. Under the sliding cooperation of the inner inclined surface 81 and the outer inclined surface 341, the pressure plate 34 can be moved down. Similarly, when the doctor's elbow moves forward, the pressure plate 34 and the push block 8 can be reset by the action of the second spring 22. Thus, the engagement or separation between the outer cylinder 4 and the arc plate 31 can be achieved simply by moving the doctor's elbow backward and forward, further simplifying the doctor's elbow operation and making the operation more convenient.

[0051] Specifically, the adjusting bracket 7 includes: a base plate 71 located below the disc 1; two first electric telescopic rods 72 hinged to the upper end of the base plate 71, the two first electric telescopic rods 72 being arranged in parallel, and the actuating ends of both first electric telescopic rods 72 being hinged to the lower end of the disc 1; and a second electric telescopic rod 73 hinged to the base plate 71, the actuating end of the second electric telescopic rod 73 being hinged to an annular sleeve 74, the annular sleeve 74 being fixedly fitted onto the outer shell of one of the first electric telescopic rods 72; the operation of the second electric telescopic rod 73 and the first electric telescopic rod 72 should... All are controlled by a remote control device. The operation of the second electric telescopic rod 73 can drive one of the first electric telescopic rods 72 to tilt to one side. Since the two first electric telescopic rods 72 are set in parallel, they will tilt to the same side, ensuring that the disc 1 is always in a horizontal state. Then, by operating the two first electric telescopic rods 72, the extension position of the disc 1 can be changed. Thus, through the doctor's preoperative preparation, the disc 1 and the arm support plate 3 can be moved to a suitable position, which is conducive to subsequent operations during the operation.

[0052] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A hand stabilizer for neurosurgery, characterized in that, include: Disk (1); Rotate the carrier plate (2) set on the disk (1); An arm support plate (3) is provided on the carrier plate (2). The arm support plate (3) includes a horizontally arranged arc-shaped plate (31) and a front side plate (32) and a rear side plate (33) extending downward from the front and rear ends of the arc-shaped plate (31), respectively. The front side plate (32) and the rear side plate (33) are fixedly connected to the carrier plate (2). The front end of the arc-shaped plate (31) is provided with a slot (311), and the rear end of the arc-shaped plate (31) is provided with a first sliding groove (312). A pressure plate (34) is longitudinally slidably provided in the first sliding groove (312). The pressure plate (34) is elastically connected to the carrier plate (2). An outer tube (4) is located on the arm support plate (3). A locking block (41) is hinged to the lower front end of the outer tube (4). The locking block (41) is inserted into the slot (311). An inner tube (42) is slidably provided inside the outer tube (4). A locking component (5) is provided between the inner tube (42) and the outer tube (4). The locking component (5) is used to adjust the position of the inner tube (42) inside the outer tube (4). Both ends of the inner tube (42) are connected to Velcro cuffs (421). A card plate (35) is located below the front end of the arc plate (31). The card plate (35) is slidably disposed on the carrier plate (2). The sliding direction of the card plate (35) is consistent with the length direction of the arc plate (31). A protrusion (351) is provided on the front side of the card plate (35), and a slot (411) is provided on the rear side of the card block (41) to engage with the protrusion (351). A transmission assembly (6) is provided between the card plate (35) and the pressure plate (34). When the pressure plate (34) descends, the transmission assembly (6) can drive the card plate (35) to move towards the rear end of the arc plate (31). And an adjustment bracket (7) for supporting the disk (1), the adjustment bracket (7) being able to adjust the position of the disk (1) with multiple degrees of freedom; The transmission assembly (6) includes: The first connecting rod (61) is hinged to the lower end of the front side of the pressure plate (34). A first slider (62) is provided on the rear side of the card plate (35). The rear end of the card plate (35) is provided with a linear groove (352) in the longitudinal direction. The first slider (62) is slidably disposed in the linear groove (352). A second connecting rod (63) is hinged on the first slider (62). The other end of the second connecting rod (63) is provided with a limiting groove (631) extending along its length direction. The first connecting rod (61) is slidably disposed in the limiting groove (631). And a hinge seat (64) mounted on the carrier plate (2), wherein the middle part of the second link (63) is hinged to the hinge seat (64).

2. The neurosurgical hand stabilizer according to claim 1, characterized in that, The top of the outer cylinder (4) is connected to a strip cover (43) that is in the same direction as its length. The strip cover (43) is in communication with the interior of the outer cylinder (4). Two strip plates (431) extending along its length are provided on both sides of the bottom of the strip cover (43). The top outer wall of the inner cylinder (42) is set as a plane (422), and the two strip plates (431) abut against the plane (422) and are slidably connected to the plane (422).

3. A hand stabilizer for neurosurgery according to claim 2, characterized in that, The locking component (5) includes: A rectangular plate (51) is longitudinally slidably disposed inside the strip cover (43). The length direction of the rectangular plate (51) is consistent with the length direction of the strip cover (43). The rectangular plate (51) and the two strip plates (431) are elastically connected. Multiple first wedges (511) are evenly distributed at the lower end of the rectangular plate (51). The inclined surface of the first wedge (511) is inclined upward from its lower end to its front end. A pull rod (52) is also provided at the top of the rectangular plate (51). A clearance hole (432) is provided on the strip cover (43). The pull rod (52) passes through the clearance hole (432) to the top of the strip cover (43). And a plurality of second wedges (53) fixedly connected to the plane (422), the plurality of second wedges (53) are equidistantly distributed along the axial direction of the inner cylinder (42), the inclined surface of the second wedge (53) is inclined downward from its top to its rear end, and the distance between adjacent second wedges (53) is equal to the distance between adjacent first wedges (511).

4. A neurosurgical hand stabilizer according to claim 3, characterized in that, Each strip plate (431) is provided with two guide posts (54) extending longitudinally to the top of the inner side of the strip cover (43). The rectangular plate (51) is provided with multiple guide holes (512) that slide and cooperate with the multiple guide posts (54). Each guide post (54) is fitted with a first spring (55), which is located between the strip cover (43) and the corresponding rectangular plate (51).

5. A hand stabilizer for neurosurgery according to claim 1, characterized in that, The top rear end of the arc plate (31) is slidably connected to a push block (8). The sliding direction of the push block (8) is consistent with the length direction of the arc plate (31). The rear end of the push block (8) is provided with an inner inclined surface (81) that extends downward towards its lower end. The top of the pressure plate (34) is provided with an outer inclined surface (341) that extends downward towards its front end. The inner inclined surface (81) and the outer inclined surface (341) are slidably engaged.

6. A hand stabilizer for neurosurgery according to claim 1, characterized in that, The bottom of the pressure plate (34) is provided with two longitudinally extending guide holes (342), and the carrier plate (2) is provided with two longitudinally extending guide rods (21). The two guide rods (21) are slidably disposed in the two guide holes (342). Each guide rod (21) is fitted with a second spring (22), which is located between the pressure plate (34) and the carrier plate (2).

7. A neurosurgical hand stabilizer according to claim 1, characterized in that, The carrier plate (2) is provided with two linear guide rails (23) in the same direction as the arc plate (31), and the lower end of the clamping plate (35) is provided with guide grooves (353) that slide with the two linear guide rails (23) respectively.

8. A hand stabilizer for neurosurgery according to claim 1, characterized in that, The adjusting bracket (7) includes: A base plate (71) is located below the disk (1); Two first electric telescopic rods (72) are hinged to the upper end of the base plate (71). The two first electric telescopic rods (72) are arranged in parallel, and the execution ends of the two first electric telescopic rods (72) are hinged to the lower end of the disc (1). And a second electric telescopic rod (73) hinged to the base plate (71), the actuating end of the second electric telescopic rod (73) is hinged with an annular sleeve (74), the annular sleeve (74) is fixedly sleeved on the outer shell of one of the first electric telescopic rods (72).

9. A neurosurgical hand stabilizer according to claim 1, characterized in that, Both ends of the carrier plate (2) are provided with a first arc-shaped block (24) extending longitudinally downward. Both first arc-shaped blocks (24) are rotatably engaged with the disk (1). The bottom of both first arc-shaped blocks (24) is provided with a second arc-shaped block (25) extending laterally inward. The outer peripheral wall of the disk (1) is provided with an annular groove (11) coaxial with it. Both second arc-shaped blocks (25) are rotatably engaged with the annular groove (11).

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