Interventional puncture positioning device

Abstract

The present invention provides an interventional puncture positioning device, comprising a bottom ring, a binding strap, a rotating plate assembly, a slide, a rotating mechanism, a driving mechanism, and a guide sleeve; the binding strap is arranged on the bottom ring, and the rotating plate assembly is rotatably arranged on the bottom ring; the slide is slidably connected to the rotating mechanism, and the rotating plate assembly can limit the sliding of the slide; the rotating mechanism is rotatably arranged on the slide, the rotating mechanism can self-lock, and the guide sleeve is arranged on the rotating mechanism; the driving mechanism is arranged on the slide, and the two ends of the driving mechanism can rotate respectively, and the two ends of the driving assembly can respectively allow the rotating assembly to rotate and the slide to slide, and after the driving mechanism rotates one circle, the rotating mechanism and the slide are locked. The above-mentioned interventional puncture positioning device can ensure that each longitudinal movement and lateral rotation of the guide sleeve can be locked after each rotation.

Description

Technical Field

[0001] The present invention relates to the technical field of cerebral vascular intervention, and in particular to an interventional puncture positioning device. Background Art

[0002] Cerebrovascular interventional puncture is a surgical procedure of whole-brain angiography. During the puncture process, the puncture site needs to be positioned to ensure that the puncture needle can stably deliver anesthetics or other drugs in the appropriate position.

[0003] Although the existing puncture positioning device can meet the needs of adjusting the puncture angle, direction, etc. during the puncture positioning process of cerebral blood vessels, its adjustment method is inconvenient, or it lacks a mechanism to keep the position unchanged after adjustment, or it is necessary to operate the positioning device separately to keep the position unchanged after adjustment, which is too inconvenient. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention proposes an interventional puncture positioning device to solve the technical problem mentioned in the above background technology that the common interventional puncture positioning device needs to be repositioned after changing its position.

[0005] In order to solve this technical problem, the technical solution adopted by the present invention is:

[0006] An interventional puncture positioning device comprises a bottom ring, a binding belt, a rotating plate assembly, a slide plate, a rotating mechanism, a driving mechanism and a guide sleeve;

[0007] The binding strap is provided on the bottom ring, and the rotating plate assembly is rotatably provided on the bottom ring;

[0008] The slide plate is slidably connected to the rotating mechanism, and the rotating plate assembly can limit the sliding of the slide plate;

[0009] The rotating mechanism is rotatably mounted on the slide, the rotating mechanism is self-locking, and the guide sleeve is mounted on the rotating mechanism;

[0010] The driving mechanism is arranged on the slide, and both ends of the driving mechanism can rotate respectively. The two ends of the driving component can respectively allow the rotating component to rotate and the slide to slide, and after the driving mechanism rotates one circle, the rotating mechanism and the slide are locked.

[0011] Furthermore, the driving mechanism includes a connecting rod, a rotating drive assembly and a sliding drive assembly; one end of the connecting rod is connected to the rotating drive assembly, and the other end is connected to the slide; the rotating drive assembly can drive the rotating mechanism to rotate, and after the rotating drive assembly rotates one circle, the rotating mechanism self-locks; the sliding drive assembly is slidably and rotatably arranged on the rotating drive assembly, and the sliding drive assembly is pulled outward, and the rotation of the sliding drive assembly can drive the slide to slide, and after the sliding drive assembly rotates one circle, the slide is locked by the rotating plate assembly.

[0012] Furthermore, the rotation drive assembly includes a driving shaft, a first notched wheel and a first incomplete gear; the driving shaft is rotatably connected to the connecting rod, and the driving shaft is connected to the sliding drive assembly at one end away from the rotation mechanism, and the other end of the driving shaft is coaxially fixed with the first notched wheel and the first incomplete gear; the non-notched part of the first notched wheel can squeeze the rotation mechanism, and the self-locking state of the rotation mechanism is released. During the self-locking release period, the first incomplete gear can contact the rotation mechanism and drive it to rotate.

[0013] Furthermore, the sliding drive assembly includes a drive sleeve, a second notched wheel and a second incomplete gear; the drive sleeve can be slidably mounted on the drive shaft at one end away from the rotating mechanism, and the second notched wheel and the second incomplete gear are respectively coaxially fixed on the drive sleeve; when the drive sleeve is pulled outward, the non-notched part of the second notched wheel can squeeze the turn plate assembly, so that the turn plate assembly releases the lock on the slide, and during the lock release period, the second incomplete gear can contact the turn plate assembly by rotating and slide together with the slide.

[0014] Furthermore, the drive sleeve is provided with an internal spline, and the drive shaft is provided with an external spline. When the drive sleeve is pulled outward, the internal spline is inserted into the external spline, and the second notched wheel can squeeze the turn plate assembly; when the drive sleeve is continued to be pulled outward, the external spline is disengaged from the internal spline, and the second notched wheel can squeeze the turn plate assembly.

[0015] Furthermore, the rotation mechanism includes an angle control component and an angle locking component; the guide sleeve is arranged on the angle control component, and the angle control component is rotatably arranged on the slide; the angle locking component is telescopically arranged on the slide and limits the rotation of the angle control component; the rotation of the first notched wheel can make the angle locking component move away from the angle control component, during which time, the first incomplete gear can make the angle control component rotate.

[0016] Furthermore, the angle control assembly includes a rotating shaft, a ratchet and a rotating gear; the rotating shaft is rotatably connected to the sliding plate, the ratchet is provided in plurality, the plurality of ratchets are respectively distributed in opposite directions, and the rotating gear and the plurality of ratchets are respectively coaxially fixed on the rotating shaft; the angle locking assembly can respectively abut against the plurality of ratchets and limit their rotation; the rotation of the first notched wheel can make the angle locking assembly move away from the ratchet, during which time the first incomplete gear can engage with the rotating gear and drive the rotating gear to rotate.

[0017] Furthermore, the angle locking assembly includes a first spring, a first support plate, a first pressing block, a fixing rod, a torsion spring, a pawl and a pull rope; a groove is provided on the slide plate, the first support plate is slidably connected to the groove of the slide plate, and is connected to the bottom surface of the groove of the slide plate through the first spring, and the first pressing block is provided on the top surface of the first support plate; the fixing rod is provided on the slide plate, the pawl is rotatably connected to the fixing rod, and is connected to the fixing rod through the torsion spring, the pawl is also connected to the first support plate through the pull rope, the pawl abuts and limits the rotation of the ratchet, and the pawl at least limits the rotation of a pair of ratchet wheels set in opposite directions; the rotation of the first notched wheel can press the first pressing block, so that the pawl moves away from the ratchet.

[0018] Furthermore, the rotating plate assembly includes a rotating plate body, a second spring, a second support plate, a second pressing block, a limit block and a rack; the rotating plate body is rotatably connected to the bottom ring, and the slide plate is slidably connected to the rotating plate body; the rotating plate body is provided with a groove, the second support plate is slidably connected to the groove of the rotating plate body, and is connected to the bottom surface of the groove of the rotating plate body through the second spring; a plurality of limit grooves are provided on the bottom surface of the slide body, and a plurality of limit blocks are provided and are arranged on the top surface of the second support plate, and the limit block can be inserted into the plurality of limit grooves; the second pressing block is arranged on the second support plate, and the rack is arranged on the rotating plate body; when the driving sleeve is rotated, the second notched wheel can squeeze the second pressing block so that the limit block moves away from the limit groove. During this period, the second incomplete gear meshes with the rack to drive the slide plate to slide.

[0019] Furthermore, a plurality of anti-rotation grooves are provided on the side of the rotating plate body, a fixing block is provided on the bottom ring, a sliding rod is slidably connected to the fixing block, and the sliding rod can be inserted into the anti-rotation groove.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] First, the angle locking assembly restricts the guide sleeve from rotating on the slide. Each rotation of the rotation drive assembly can release its restriction and drive the guide sleeve to rotate a certain angle. After one rotation, the angle locking assembly re-restricts the rotation of the guide sleeve on the slide.

[0022] Secondly, the rotating plate assembly limits the sliding of the skateboard, that is, limits the translation of the guide sleeve. Each rotation of the sliding drive assembly can release its restriction and make the sliding drive assembly slide with the skateboard. After one rotation, the rotating plate assembly limits the sliding of the skateboard again.

[0023] Third, by pulling the drive sleeve to insert the inner spline into the outer spline, the guide sleeve can be rotated and slid simultaneously from a state where rotation and sliding are restricted, and after the drive mechanism rotates one circle, the guide sleeve is restricted from rotating and sliding again. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0025] Figure 1 A schematic diagram of an interventional puncture positioning device provided by one embodiment of the present invention;

[0026] Figure 2 for Figure 1 A schematic diagram of the drive mechanism shown;

[0027] Figure 3 for Figure 1 A partial cross-sectional schematic diagram of the rotating plate assembly, the sliding plate and the driving mechanism shown;

[0028] Figure 4 for Figure 1 A partial cross-sectional schematic diagram of the base plate, rotating mechanism and driving mechanism shown.

[0029] Reference numerals:

[0030] 1- bottom ring;

[0031] 2- straps;

[0032] 3-rotating plate assembly; 31-rotating plate body; 311-rotation stop groove; 32-second spring; 33-second support plate; 34-second pressing block; 35-limiting block; 36-rack;

[0033] 4-slide plate; 41-limiting slot;

[0034] 5-Rotation mechanism;

[0035] 51-angle control assembly; 511-rotation shaft; 512-ratchet; 513-rotation gear;

[0036] 52 - angle locking assembly; 521 - first spring; 522 - first support plate; 523 - first pressing block; 524 - fixing rod; 525 - torsion spring; 526 - ratchet; 527 - pull rope;

[0037] 6-driving mechanism; 61-connecting rod;

[0038] 62-rotation drive assembly; 621-drive shaft; 622-first notched wheel; 623-first incomplete gear;

[0039] 63-sliding drive assembly; 631-drive sleeve; 632-second notched wheel; 633-second incomplete gear;

[0040] 7-guide sleeve;

[0041] 8-Fixed block; 9-Sliding rod. DETAILED DESCRIPTION

[0042] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0043] Please also refer to Figure 1-Figure 4 This embodiment provides an interventional puncture positioning device, including a bottom ring 1, a binding belt 2, a rotating plate assembly 3, a slide plate 4, a rotating mechanism 5, a driving mechanism 6 and a guide sleeve 7.

[0044] The straps 2 are mounted on the base ring 1, and the rotating plate assembly 3 is rotatably mounted on the base ring 1. It should be understood that the base ring 1 is placed on the body and secured to the body via the straps 2, and that the guide sleeve 7 mounted on the slide 4 is vertically rotated by rotating the rotating plate assembly 3. In this embodiment, two straps 2 are provided, which can be connected to form a loop and secured to the body.

[0045] The slide plate 4 is slidably connected to the rotating mechanism 5 , and the rotating plate assembly 3 can limit the sliding of the slide plate 4 .

[0046] A rotating mechanism 5 is rotatably mounted on the slide 4 and is self-locking. A guide sleeve 7 is mounted on the rotating mechanism 5. It should be understood that the guide sleeve 7 rotates as the rotating mechanism 5 rotates. Furthermore, the slide 4 has vertical baffles on one or both sides. In this embodiment, the slide 4 is a concave plate with an oblong hole on its bottom surface to allow the guide sleeve 7 and the object contained therein to pass through. The rotatable portion of the rotating mechanism 5 is located on the inner side of the slide 4, which also has a hole to allow the drive mechanism 6 to pass through.

[0047] The driving mechanism 6 is provided on the slide 4. The two ends of the driving mechanism 6 can rotate respectively. The two ends of the driving assembly can respectively allow the rotating assembly to rotate and the slide 4 to slide. After the driving mechanism 6 rotates one circle, the rotating mechanism 5 and the slide 4 are locked.

[0048] In other embodiments, the drive mechanism 6 includes a connecting rod 61, a rotation drive assembly 62, and a sliding drive assembly 63. One end of the connecting rod 61 is connected to the rotation drive assembly 62, and the other end is connected to the slide 4. The rotation drive assembly 62 drives the rotation mechanism 5 to rotate, and after the rotation drive assembly 62 rotates one full revolution, the rotation mechanism 5 self-locks. The sliding drive assembly 63 is slidably and rotatably mounted on the rotation drive assembly 62. When the sliding drive assembly 63 is pulled outward, the rotation of the sliding drive assembly 63 drives the slide 4 to slide, and after the sliding drive assembly 63 rotates one full revolution, the slide 4 is locked by the rotating plate assembly 3. It should be understood that when the rotation drive assembly 62 and the sliding drive assembly 63 are in their initial positions and when they return to their initial positions after one full revolution, the rotation mechanism 5 self-locks to restrict its own rotation, thereby limiting the rotation of the guide sleeve 7. The rotating plate assembly 3 restricts the sliding of the slide 4, thereby limiting the translation of the guide sleeve 7. It should also be understood that the sliding drive assembly 63 and the rotation drive assembly 62 can rotate independently of each other, and before the sliding drive assembly 63 is pulled outward, its rotation does not cause the slide 4 to slide.

[0049] In other embodiments, the rotation drive assembly 62 includes a drive shaft 621, a first notched wheel 622, and a first incomplete gear 623. The drive shaft 621 is rotatably connected to the connecting rod 61. The end of the drive shaft 621 away from the rotation mechanism 5 is connected to the sliding drive assembly 63. The other end of the drive shaft 621 is coaxially fixed with the first notched wheel 622 and the first incomplete gear 623. The non-notched portion of the first notched wheel 622 can press the rotation mechanism 5, releasing the self-locking state of the rotation mechanism 5. During the self-locking release period, the first incomplete gear 623 can contact the rotation mechanism 5 and drive it to rotate. It should be understood that the first notched wheel 622 can also be replaced with a cam or a cam-like object, as long as a portion of it presses the rotation mechanism 5 during rotation and the other portion does not. The unlocking and driving process of the rotation drive assembly 62 is as follows: the contact portion between the first notched wheel 622 and the rotating mechanism 5 changes from a notched portion, i.e., no contact, to a complete portion that contacts and squeezes the rotating mechanism 5, thereby releasing the self-locking state of the rotating mechanism 5; the first incomplete gear 623 rotates synchronously with the first notched wheel 622, and after the first notched wheel 622 releases the self-locking state of the rotating mechanism 5, it contacts the rotating mechanism 5 and drives it to rotate a certain angle. After the rotating mechanism 5 rotates, the first notched wheel 622 can still maintain the self-locking state of the rotating mechanism 5 for a period of time. In the initial state, the notch of the first notched wheel 622 faces the rotating mechanism 5. In this embodiment, the first incomplete gear 623 has three teeth, but it can be set to one as preferred, or additional teeth can be provided as needed.

[0050] In other embodiments, the sliding drive assembly 63 includes a drive sleeve 631, a second notched wheel 632, and a second incomplete gear 633. The drive sleeve 631 is slidably mounted on the end of the drive shaft 621 away from the rotating mechanism 5, and the second notched wheel 632 and the second incomplete gear 633 are respectively coaxially fixed to the drive sleeve 631. When the drive sleeve 631 is pulled outward, the non-notched portion of the second notched wheel 632 can press the rotating plate assembly 3, causing the rotating plate assembly 3 to release the lock on the slide 4. During the unlocking period, the second incomplete gear 633 can rotate to contact the rotating plate assembly 3 and slide with the slide 4. It should be understood that the drive sleeve 631 can rotate and slide on the drive shaft 621, and the second notched wheel 632 can also be replaced with a cam or a cam-like object, as long as a portion of the notched wheel presses the rotating plate assembly 3 during rotation and the other portion does not. The unlocking and driving process of the sliding drive assembly 63 is as follows: the contact portion of the second notched wheel 632 with the rotating mechanism 5 changes from the notched portion, i.e., non-contact, to the complete portion, which contacts and squeezes the rotating plate, thereby releasing the restriction of the rotating plate assembly 3 on the slide 4; the second incomplete gear 633 rotates synchronously with the second notched wheel 632, and after the restriction of the rotating plate assembly 3 on the slide 4 is released, the second incomplete gear 633 contacts the rotating plate assembly 3 and slides a certain distance with the slide 4, and after the slide 4 finishes sliding, the second notched wheel 632 can still maintain the state of the rotating plate assembly 3 not restricting the slide 4 for a period of time. In this embodiment, the second incomplete gear 633 has three teeth, which can be set as one as preferred, or set separately according to needs. It should also be understood that the second notched wheel 632 is in sliding contact with the slide 4 during the sliding of the slide 4. Furthermore, in the initial state, the second notched wheel 632 and the second incomplete gear 633 are both away from the turn plate assembly 3, and their rotation does not contact the turn plate assembly 3. The notch of the second notched wheel 632 faces toward and is higher than the turn plate assembly 3. Only after being pulled outward can the second notched wheel 632 and the second incomplete gear 633 contact the turn plate assembly 3. It should be noted that the rotation of the sliding drive assembly 63 can cause the guide sleeve 7 to move in the longitudinal direction.

[0051] In other embodiments, the drive sleeve 631 is provided with an internal spline, and the drive shaft 621 is provided with an external spline, and the internal spline is inserted into the external spline; the internal spline is kept inserted into the external spline and the drive sleeve 631 is pulled outward, so that the second notched wheel 632 can squeeze the turn plate assembly 3; the drive sleeve 631 is continued to be pulled outward, the external spline is disengaged from the internal spline, and the second notched wheel 632 can squeeze the turn plate assembly 3. When the drive sleeve 631 is not pulled outward, the drive sleeve 631 and the drive shaft 621 are spline-connected. Since the second notched wheel 632 and the second incomplete gear 633 are not in contact with the turn plate assembly 3 at this time, rotating the drive sleeve 631 drives the drive shaft 621 to rotate without causing the slide plate 4 to slide; the drive sleeve 631 and the drive shaft 621 are kept spline-connected, and the drive sleeve 631 is pulled outward, so that the second notched wheel 632 and the second incomplete gear 633 are located at the contact point with the turn plate assembly 3. At this time, the drive sleeve 631 is rotated, and the drive sleeve 631 and the drive shaft 621 rotate synchronously, driving the guide sleeve 7 to rotate, and at the same time driving the slide plate 4 to slide; keep the second notched wheel 632 and the second incomplete gear 633 at the contact point with the rotating plate assembly 3, continue to pull the drive sleeve 631 outward, so that the spline connection between the drive sleeve 631 and the drive shaft 621 is disconnected, and at this time, the drive sleeve 631 is rotated, the drive shaft 621 does not rotate, and the drive sleeve 631 rotates, driving the slide plate 4 to slide.

[0052] In other embodiments, the rotation mechanism 5 includes an angle control assembly 51 and an angle locking assembly 52; the guide sleeve 7 is disposed on the angle control assembly 51, which is rotatably disposed on the slide 4; the angle locking assembly 52 is telescopically disposed on the slide 4 and limits the rotation of the angle control assembly 51; the rotation of the first notched wheel 622 can cause the angle locking assembly 52 to move away from the angle control assembly 51, during which time the first incomplete gear 623 can cause the angle control assembly 51 to rotate. It should be understood that the guide sleeve 7 and the angle control assembly 51 rotate together, and after the angle locking assembly 52 moves away from the angle control assembly 51, the angle control assembly 51 can rotate.

[0053] In other embodiments, the angle control assembly 51 includes a rotating shaft 511, a ratchet 512, and a rotating gear 513; the rotating shaft 511 is rotatably connected to the sliding plate, the ratchet 512 is provided in a plurality, and the plurality of ratchet wheels 512 are respectively distributed in opposite directions, and the rotating gear 513 and the plurality of ratchet wheels 512 are respectively coaxially fixed on the rotating shaft 511; the angle locking assembly 52 can respectively abut the plurality of ratchet wheels 512 and restrict their rotation; the rotation of the first notched wheel 622 can move the angle locking assembly 52 away from the ratchet wheels 512, during which time the first incomplete gear 623 can engage with the rotating gear 513 and drive the rotating gear 513 to rotate. It should be understood that the reverse distribution of the plurality of ratchet wheels 512 means that the ratchet teeth of the plurality of ratchet wheels 512 have opposite rotation directions. It should also be understood that the rotation of the rotating shaft 511 drives the guide sleeve 7 to rotate in the lateral direction.

[0054] In other schemes, the angle locking assembly 52 includes a first spring 521, a first support plate 522, a first pressing block 523, a fixing rod 524, a torsion spring 525, a pawl 526 and a pull rope 527; a groove is provided on the slide plate 4, the first support plate 522 is slidably connected to the groove of the slide plate 4, and is connected to the bottom surface of the groove of the slide plate 4 through the first spring 521, and the first pressing block 523 is provided on the top surface of the first support plate 522; the fixing rod 524 is provided on the slide plate 4, the pawl 526 is rotatably connected to the fixing rod 524, and is connected to the fixing rod 524 through the torsion spring 525, the pawl 526 is also connected to the first support plate 522 through a pull rope 527, the pawl 526 abuts and limits the rotation of the ratchet 512, and the pawl 526 at least limits the rotation of a pair of oppositely arranged ratchet wheels 512; the rotation of the first notched wheel 622 can press the first pressing block 523, so that the pawl 526 moves away from the ratchet 512. It should be understood that the fixing rod 524, torsion spring 525, pawl 526, and pull rope 527 correspond to each other, and at least one pawl 526 restricts forward rotation of one ratchet 512, while another pawl 526 restricts reverse rotation of the other ratchet 512. Furthermore, the first pressing block 523 is squeezed downward by the first notched wheel 622, causing the pull rope 527 to drive the pawl 526 away from the ratchet 512.

[0055] In other embodiments, the rotating plate assembly 3 includes a rotating plate body 31, a second spring 32, a second support plate 33, a second pressing block 34, a limit block 35 and a rack 36; the rotating plate body 31 is rotatably connected to the bottom ring 1, and the slide plate 4 is slidably connected to the rotating plate body 31; a groove is provided on the rotating plate body 31, and the second support plate 33 is slidably connected to the groove of the rotating plate body 31, and is connected to the bottom surface of the groove of the rotating plate body 31 through the second spring 32; on the bottom surface of the slide plate 4 body A plurality of limiting slots 41 are provided, and a plurality of limiting blocks 35 are provided and disposed on the top surface of the second support plate 33. The limiting blocks 35 can be inserted into the plurality of limiting slots 41. A second pressing block 34 is disposed on the second support plate 33, and a rack 36 is disposed on the rotating plate body 31. By rotating the drive sleeve 631, the second notched wheel 632 can squeeze the second pressing block 34, causing the limiting block 35 to move away from the limiting slots 41. During this period, the second incomplete gear 633 engages with the rack 36, driving the slide 4 to slide. It should be understood that the second pressing block 34 is an elongated block, and the second notched wheel 632 can roll on the second pressing block 34 while the second incomplete gear 633 rolls on the rack 36. The rotating plate body 31 is also provided with an elongated hole to allow the guide sleeve 7 and the medical items within the guide sleeve 7 to pass through.

[0056] In other solutions, a plurality of anti-rotation grooves 311 are further provided on the side of the rotating plate body 31 , and a fixing block 8 is further provided on the bottom ring 1 . A sliding rod 9 is slidably connected to the fixing block 8 , and the sliding rod 9 can be inserted into the anti-rotation groove 311 .

[0057] During use of the above-mentioned interventional puncture positioning device, when it is necessary to rotate the guide sleeve 7 laterally alone, the spline connection between the drive shaft 621 and the drive sleeve 631 is maintained, and the drive sleeve 631 is rotated for multiple cycles until the desired angle is reached; when it is necessary to rotate the guide sleeve 7 laterally and move the guide sleeve 7 longitudinally at the same time, the spline connection between the drive shaft 621 and the drive sleeve 631 is maintained, so that the second notched wheel 632 is placed above the second pressing block 34, and the second incomplete gear 633 is placed above the rack 36, and the drive sleeve 631 is rotated for multiple cycles until the desired angle and position are reached; when it is necessary to adjust the longitudinal position of the guide sleeve 7 separately, the drive sleeve 631 is pulled outward to disconnect the spline connection with the drive shaft 621, and the drive sleeve 631 is rotated for multiple cycles until the desired position is reached; when it is necessary to adjust the angle of the guide sleeve 7 vertically, the slide bar 9 is slid out of the anti-rotation groove 311, the turn plate body 31 is rotated, and then the slide bar 9 is reinserted into the anti-rotation groove 311. It should be noted that the driving sleeve 631 should rotate in units of circles.

[0058] The above-mentioned interventional puncture positioning device restricts the rotation of the guide sleeve 7 on the slide 4 through the angle locking assembly 52. Each rotation of the rotation drive assembly 62 releases the restriction and drives the guide sleeve 7 to rotate a certain angle. After one rotation, the angle locking assembly 52 re-restricts the rotation of the guide sleeve 7 on the slide 4. In addition, the rotating plate assembly 3 restricts the sliding of the slide 4, that is, restricts the translation of the guide sleeve 7. Each rotation of the sliding drive assembly 63 releases the restriction and causes the sliding drive assembly 63 to slide along with the slide 4. After one rotation, the rotating plate assembly 3 re-restricts the sliding of the slide 4. In addition, by pulling the drive sleeve 631, the internal spline is inserted into the external spline, which can simultaneously rotate and slide the guide sleeve 7 from the restricted rotation and sliding state. After the drive mechanism 6 rotates one rotation, the guide sleeve 7 is re-restricted from rotating and sliding. This operation can reduce the complexity of the operation, so that each longitudinal movement and lateral rotation of the guide sleeve 7 can be locked after each rotation.

[0059] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. An interventional puncture positioning device, characterized in that: It includes a bottom ring, a strap, a rotating plate assembly, a slide plate, a rotating mechanism, a driving mechanism and a guide sleeve; The binding strap is provided on the bottom ring, and the rotating plate assembly is rotatably provided on the bottom ring; The slide plate is slidably connected to the rotating mechanism, and the rotating plate assembly can limit the sliding of the slide plate; The rotating mechanism is rotatably mounted on the slide, the rotating mechanism is self-locking, and the guide sleeve is mounted on the rotating mechanism; The driving mechanism is provided on the slide, and both ends of the driving mechanism can rotate respectively. The two ends of the driving mechanism can respectively allow the rotating mechanism to rotate and the slide to slide, and after the driving mechanism rotates one circle, the rotating mechanism and the slide are locked; The driving mechanism includes a connecting rod, a rotation driving assembly and a sliding driving assembly; one end of the connecting rod is connected to the rotation driving assembly, and the other end is connected to the slide; the rotation driving assembly can drive the rotation mechanism to rotate, and after the rotation driving assembly rotates one circle, the rotation mechanism self-locks; the sliding driving assembly is slidably and rotatably arranged on the rotation driving assembly, and the sliding driving assembly is pulled outward, and the rotation of the sliding driving assembly can drive the slide to slide, and after the sliding driving assembly rotates one circle, the slide is locked by the rotating plate assembly; The rotation drive assembly includes a driving shaft, a first notched wheel and a first incomplete gear; the driving shaft is rotatably connected to the connecting rod, and one end of the driving shaft away from the rotation mechanism is connected to the sliding drive assembly, and the other end of the driving shaft is coaxially fixed with the first notched wheel and the first incomplete gear; the non-notched portion of the first notched wheel can squeeze the rotation mechanism, and the self-locking state of the rotation mechanism is released. During the self-locking release period, the first incomplete gear can contact the rotation mechanism and drive it to rotate; The rotation mechanism includes an angle control component and an angle locking component; the guide sleeve is arranged on the angle control component, and the angle control component is rotatably arranged on the slide; the angle locking component is telescopically arranged on the slide and limits the rotation of the angle control component; the rotation of the first notched wheel can make the angle locking component move away from the angle control component, during which time the first incomplete gear can make the angle control component rotate.

2. The interventional puncture positioning device according to claim 1, characterized in that: The sliding drive assembly includes a drive sleeve, a second notched wheel and a second incomplete gear; the drive sleeve can be slidably mounted on the drive shaft at one end away from the rotating mechanism, and the second notched wheel and the second incomplete gear are respectively coaxially fixed on the drive sleeve; when the drive sleeve is pulled outward, the non-notched portion of the second notched wheel can squeeze the rotating plate assembly, so that the rotating plate assembly releases the lock on the slide, and during the unlocking period, the second incomplete gear can contact the rotating plate assembly by rotating and slide together with the slide.

3. The interventional puncture positioning device according to claim 2, characterized in that: The drive sleeve is provided with an internal spline, and the drive shaft is provided with an external spline. When the drive sleeve is pulled outward, the internal spline is inserted into the external spline, and the second notched wheel can squeeze the turn plate assembly; when the drive sleeve is continued to be pulled outward, the external spline is disengaged from the internal spline, and the second notched wheel can squeeze the turn plate assembly.

4. The interventional puncture positioning device according to claim 3, characterized in that: The angle control assembly includes a rotating shaft, a ratchet and a rotating gear; the rotating shaft is rotatably connected to the skateboard, and the ratchet is provided in plurality, and the plurality of ratchets are respectively distributed in opposite directions, and the rotating gear and the plurality of ratchets are respectively coaxially fixed on the rotating shaft; the angle locking assembly can respectively abut against the plurality of ratchets and limit their rotation; the rotation of the first notched wheel can make the angle locking assembly move away from the ratchet, during which time the first incomplete gear can engage with the rotating gear and drive the rotating gear to rotate.

5. The interventional puncture positioning device according to claim 4, characterized in that: The angle locking assembly includes a first spring, a first support plate, a first pressing block, a fixing rod, a torsion spring, a pawl and a pull rope; a groove is provided on the slide, the first support plate is slidably connected to the groove of the slide, and is connected to the bottom surface of the groove of the slide through the first spring, and the first pressing block is provided on the top surface of the first support plate; the fixing rod is provided on the slide, the pawl is rotatably connected to the fixing rod, and is connected to the fixing rod through the torsion spring, and the pawl is also connected to the first support plate through the pull rope, the pawl abuts and limits the rotation of the ratchet, and the pawl at least limits the rotation of a pair of ratchet wheels set in opposite directions; the rotation of the first notched wheel can press the first pressing block, so that the pawl moves away from the ratchet.

6. The interventional puncture positioning device according to claim 4, characterized in that: The rotating plate assembly includes a rotating plate body, a second spring, a second support plate, a second pressing block, a limit block and a rack; the rotating plate body is rotatably connected to the bottom ring, and the slide plate is slidably connected to the rotating plate body; the rotating plate body is provided with a groove, the second support plate is slidably connected to the groove of the rotating plate body, and is connected to the bottom surface of the groove of the rotating plate body through the second spring; the bottom surface of the slide plate body is provided with a plurality of limit grooves, and the limit blocks are provided with a plurality of and are arranged on the top surface of the second support plate, and the limit blocks can be inserted into the plurality of limit grooves; the second pressing block is arranged on the second support plate, and the rack is arranged on the rotating plate body; when the driving sleeve is rotated, the second notched wheel can squeeze the second pressing block so that the limit block moves away from the limit groove, during which time, the second incomplete gear meshes with the rack to drive the slide plate to slide.

7. The interventional puncture positioning device according to claim 6, characterized in that: The side surface of the rotating plate body is also provided with a plurality of anti-rotation grooves, and the bottom ring is also provided with a fixing block, and the fixing block is also slidably connected to a sliding rod, and the sliding rod can be inserted into the anti-rotation groove.

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