Cerebrovascular intervention puncture positioning device

Abstract

The invention discloses a cerebrovascular intervention puncture positioning device, and relates to the technical field of medical instruments. The device comprises a headrest, mounting mechanisms are fixedly connected to the two sides of the headrest, a base is fixedly connected to the side wall of the headrest, a driving wheel is rotatably connected to the interior of the base, a driven wheel is connected to the upper portion of the driving wheel in an engaged mode, and a rotating part is fixedly connected to the top of the driven wheel. Through the arrangement of the supporting ring, the driving wheel, the driven wheel, the headrest and other structures, a puncture needle can be driven to conduct vertical position adjustment, so that different positions of the head can be punctured conveniently, through the arrangement of the limiting ring, the pull rod, the clamping block, the clamping groove and other structures, the position of the puncture needle can be transversely adjusted on the supporting ring, and the puncture effect is improved. Meanwhile, through the arrangement of the worm gear, the worm, the transmission shaft and other structures, the puncture angle of the puncture needle can be adjusted according to the actual situation, and after the angle is adjusted, the puncture needle can be prevented from deviating through the self-locking performance of the worm gear and the worm.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a cerebrovascular interventional puncture positioning device. Background Art

[0002] Cerebrovascular disease is a common disease among the elderly. It brings great mental stress and heavy economic burden to individuals, families and society due to its high incidence, disability rate and mortality rate. With the extension of life expectancy and the acceleration of population aging in my country, the incidence and prevalence of cerebrovascular disease have a tendency to increase year by year. Intravascular intervention technology is a newly developed method for the prevention and treatment of cerebrovascular disease. Compared with traditional cerebrovascular disease treatment methods, it has certain advantages. When performing puncture treatment on patients with cardiovascular and cerebrovascular diseases, people generally use a puncture needle to directly pierce the blood vessel, and then insert a catheter into the blood vessel for treatment.

[0003] Most existing puncture methods use doctors to perform puncture by hand, which has low accuracy, is prone to puncture deviation, cannot accurately position the puncture needle, and is difficult to control the depth of puncture. The risk of puncture is high. For this reason, we propose a cerebrovascular interventional puncture positioning device. Summary of the invention

[0004] The purpose of the present invention is to provide a cerebrovascular interventional puncture positioning device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cerebrovascular interventional puncture positioning device, comprising a headrest, both sides of the headrest are fixedly connected with a mounting mechanism, a base is fixedly connected to the side wall of the headrest, a driving wheel is rotatably connected to the inside of the base, a driven wheel is meshingly connected to the top of the driving wheel, a rotating member is fixedly connected to the top of the driven wheel, a supporting ring is fixedly connected to the top of the rotating member, a limiting ring is sleeved on the outer surface of the supporting ring, a pull rod is slidably connected to the top of the limiting ring, a clamping block is fixedly connected to the bottom end of the pull rod, and a clamping groove adapted to the clamping block is provided on the top side wall of the limiting ring;

[0006] A support seat is fixedly connected to the side wall of the limiting ring, a transmission shaft is rotatably connected to the inner wall of the support seat, a worm wheel is fixedly connected to the center of the transmission shaft, a worm is meshedly connected to one side of the worm wheel, and the worm is rotatably connected to the inner wall of the support seat;

[0007] A positioning seat is fixedly connected to the transmission shaft, a first elastic rod is fixedly connected to the inner wall of the positioning seat, and a positioning ring is fixedly connected to the end of the first elastic rod;

[0008] A locking structure is installed on the side wall of the base, and the locking mechanism acts on the driving wheel to realize the release and locking of the driving wheel.

[0009] Furthermore, the mounting mechanism includes a fixing rod fixedly connected to the side wall of the headrest, the bottom end of the fixing rod is threadedly connected to a threaded rod, the top end of the threaded rod is rotatably connected to a clamping plate, and the bottom end of the threaded rod is fixedly connected to a first knob.

[0010] Furthermore, one end of the driving wheel is rotatably connected to the inner wall of the base through a bearing, and the other end passes through the base and is fixedly connected to a turning handle.

[0011] Furthermore, the driven wheel is arranged in an arc shape, and the rotating member is rotatably connected to the base via a pin shaft.

[0012] Furthermore, the support ring is configured to be in an arc shape, and the support ring moves with the rotating member as a rotation center.

[0013] Furthermore, the pull rod is arranged through the limiting ring, and an elastic member is sleeved on the outer surface of the pull rod. One end of the elastic member is connected to the limiting ring, and the other end is connected to the clamping block.

[0014] Furthermore, one end of the worm is rotatably connected to the inner wall of the support seat through a bearing, and the other end passes through the support seat and is fixedly connected to a second knob.

[0015] Furthermore, there are two positioning rings, and protective pads are provided on the inner walls of the two positioning rings, and the two positioning rings are both arranged in an arc shape.

[0016] Furthermore, the locking mechanism comprises a second elastic rod fixedly connected to the inner wall of the base, a locking block is fixedly connected to the free end of the second elastic rod, and a connecting rod is fixedly connected to the side wall of the locking block.

[0017] Furthermore, the locking block and the driving wheel are meshed with each other.

[0018] The present invention has at least the following beneficial effects:

[0019] 1. The present invention can drive the puncture needle to adjust its vertical position through the cooperation of the support ring, driving wheel, driven wheel, headrest and other structures, so as to facilitate puncturing at different positions of the head, and can also adjust the puncture needle horizontally on the support ring through the cooperation of the limit ring, pull rod, clamping block, clamping slot and other structures, thereby further improving the practicality of the device.

[0020] 2. The present invention can deflect the puncture needle fixed on the positioning ring during use through the mutual cooperation of the worm wheel, worm, transmission shaft and other structures, so as to facilitate the adjustment of the most suitable puncture angle according to actual conditions. After the angle is adjusted, the self-locking property between the worm wheel and the worm can be used to avoid the puncture needle from being offset, thereby further enhancing the stability during puncture.

[0021] 3. The present invention can quickly install the entire device on the bed through the cooperation of the fixed rods, threaded rods, clamps and other structures, and can also adapt to beds of different sizes. After use, it can also be quickly disassembled to avoid occupying bed space.

[0022] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a three-dimensional schematic diagram of the support ring structure of the present invention;

[0025] Figure 3 It is a three-dimensional schematic diagram of the limiting ring structure of the present invention;

[0026] Figure 4 It is a three-dimensional schematic diagram of the worm structure of the present invention;

[0027] Figure 5 It is a three-dimensional schematic diagram of the positioning ring structure of the present invention;

[0028] Figure 6 It is a three-dimensional schematic diagram of the driving wheel structure of the present invention;

[0029] Figure 7 For the present invention Figure 6 A magnified view of the structure in the middle.

[0030] Reference numerals:

[0031] 1. Headrest; 2. Mounting mechanism; 201. Fixed rod; 202. Threaded rod; 203. Clamp; 204. First knob; 3. Base; 4. Driving wheel; 5. Driven wheel; 6. Rotating member; 7. Support ring; 8. Limiting ring; 9. Pull rod; 10. Block; 11. Slot; 12. Support seat; 13. Transmission shaft; 14. Worm gear; 15. Worm; 16. Positioning seat; 17. First elastic rod; 18. Positioning ring; 19. Locking structure; 191. Second elastic rod; 192. Locking block; 193. Connecting rod; 20. Turn handle; 21. Elastic member; 22. Second knob. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0033] See also Figure 1-Figure 7 The present invention provides a technical solution: a cerebrovascular interventional puncture positioning device, comprising a headrest 1, both sides of the headrest 1 are fixedly connected with a mounting mechanism 2, a base 3 is fixedly connected to the side wall of the headrest 1, a driving wheel 4 is rotatably connected inside the base 3, a driven wheel 5 is meshingly connected above the driving wheel 4, a rotating member 6 is fixedly connected to the top of the driven wheel 5, a supporting ring 7 is fixedly connected to the top of the rotating member 6, a limiting ring 8 is sleeved on the outer surface of the supporting ring 7, a pull rod 9 is slidably connected to the top of the limiting ring 8, a clamping block 10 is fixedly connected to the bottom end of the pull rod 9, and a clamping groove 11 adapted to the clamping block 10 is opened on the top side wall of the limiting ring 8;

[0034] A support seat 12 is fixedly connected to the side wall of the limiting ring 8, a transmission shaft 13 is rotatably connected to the inner wall of the support seat 12, a worm gear 14 is fixedly connected to the center of the transmission shaft 13, a worm 15 is meshedly connected to one side of the worm gear 14, and the worm 15 is rotatably connected to the inner wall of the support seat 12;

[0035] A positioning seat 16 is fixedly connected to the transmission shaft 13, a first elastic rod 17 is fixedly connected to the inner wall of the positioning seat 16, and a positioning ring 18 is fixedly connected to the end of the first elastic rod 17;

[0036] A locking structure 19 is installed on the side wall of the base 3 , and the locking mechanism acts on the driving wheel 4 to achieve the release and locking of the driving wheel 4 .

[0037] According to the technical solution of this embodiment, the mounting mechanism 2 includes a fixing rod 201 fixedly connected to the side wall of the headrest 1, the bottom end of the fixing rod 201 is threadedly connected to a threaded rod 202, the top end of the threaded rod 202 is rotatably connected to a clamping plate 203, and the bottom end of the threaded rod 202 is fixedly connected to a first knob 204. When it is needed, the fixing rod 201 and the headrest 1 are first placed on the operating bed so that their bottom surface fits on the bed body, and the fixing rod 201 is designed as a telescopic rod, which is convenient for adjusting the use length of the fixing rod 201, so as to adapt to different operating beds, and then the first knob 204 is turned to drive the threaded rod 202 to rotate. When the threaded rod 202 rotates, the threaded rod 202 drives the clamping plate 203 to move upward by utilizing its meshing action with the bottom end of the fixing rod 201, thereby pressing the bottom of the bed body from below, thereby fixing the complete device, which is convenient for enhancing the stability during puncture.

[0038] According to the technical solution of this embodiment, one end of the driving wheel 4 is rotatably connected to the inner wall of the base 3 through a bearing, and the other end passes through the base 3 and is fixedly connected to a turning handle 20. The driven wheel 5 is arranged in an arc shape, and the rotating member 6 is rotatably connected to the base 3 through a pin shaft. Rotating the turning handle 20 can drive the driving wheel 4 to rotate. When the driving wheel 4 rotates, it will drive the driven wheel 5 to rotate. The rotation center of the driven wheel 5 is consistent with the rotation center of the rotating member 6, and the support ring 7 is arranged in an arc shape. Therefore, when the driven wheel 5 drives the rotating member 6 to rotate, it will drive the support ring 7 to rotate around the rotating member 6, thereby facilitating the vertical position adjustment of the puncture needle, thereby facilitating puncture of different positions of the head.

[0039] According to the technical solution of this embodiment, the pull rod 9 is arranged through the limiting ring 8, and the outer surface of the pull rod 9 is sleeved with an elastic member 21. One end of the elastic member 21 is connected to the limiting ring 8, and the other end is connected to the clamping block 10. Pulling the pull rod 9 drives the clamping block 10 to move, and squeezing the elastic member 21 can drive the clamping block 10 to disengage from the clamping slot 11. At this time, the limiting ring 8 can be unlocked, so that the puncture needle can be laterally adjusted on the support ring 7, thereby further improving the practicality of the device side.

[0040] According to the technical solution of this embodiment, one end of the worm 15 is rotatably connected to the inner wall of the support seat 12 through a bearing, and the other end passes through the support seat 12 and is fixedly connected to a second knob 22. Rotating the second knob 22 drives the worm 15 to rotate, which can drive the worm wheel 14 to rotate accordingly. When the worm wheel 14 rotates, it drives the transmission shaft 13 to rotate, thereby driving the positioning seat 16 to deflect, so that the angle adjustment of the puncture needle is realized, which is convenient for adjusting the appropriate puncture angle.

[0041] According to the technical solution of this embodiment, there are two positioning rings 18, and protective pads are provided on the inner walls of the two positioning rings 18, and the two positioning rings 18 are both arranged in an arc shape. The two positioning rings 18 are mainly used to fix the puncture device, and the protective pads are provided to protect the puncture device and avoid damage caused by hard contact.

[0042] According to the technical solution of this embodiment, the locking mechanism includes a second elastic rod 191 fixedly connected to the inner wall of the base 3, the free end of the second elastic rod 191 is fixedly connected to a locking block 192, and the side wall of the locking block 192 is fixedly connected to a connecting rod 193, and the locking block 192 is meshed with the driving wheel 4. When adjusting the driving wheel 4, it is necessary to first pull the connecting rod 193 to drive the locking block 192 to disengage from the tooth gap of the driving wheel 4, so that the driving wheel 4 can be unlocked and released. After adjusting the driving wheel 4, the connecting rod 193 is released, and the elastic potential energy of the second elastic rod 191 can be used to drive the locking block 192 to reset, so that it can be re-stuck in the tooth gap of the driving wheel 4, and the driving wheel 4 can be locked again.

[0043] The use principle and process of the present invention are as follows: when a patient needs to undergo cerebrovascular puncture, firstly, the fixing rod 201 and the headrest 1 are placed on the operating bed, and the use length of the fixing rod 201 is adjusted so that the bottom surface of the headrest 1 fits against the bed, and then the first knob 204 is turned to drive the threaded rod 202 to rotate. When the threaded rod 202 rotates, the threaded rod 202 drives the clamping plate 203 to move upward by virtue of its meshing action with the bottom end of the fixing rod 201, thereby tightening the bottom of the bed from below, thereby completing the fixing of the device. The patient's head is then placed on the headrest 1, and the connecting rod 193 is pulled to drive the locking block 192 to disengage from the tooth gap of the driving wheel 4, so that the driving wheel 4 can be unlocked and released, and then the turning handle 20 is turned to drive the driving wheel 4 to rotate. When the driving wheel 4 rotates, the driven wheel 5 is driven to rotate, and the rotation center of the driven wheel 5 is consistent with the rotation center of the rotating member 6. Therefore, when the driven wheel 5 drives the rotating member 6 to rotate, it drives the supporting ring 7 to rotate around the rotating member 6, thereby facilitating the driving The puncture needle is adjusted in the vertical position. When it moves to the appropriate position in the vertical direction, the connecting rod 193 is loosened, and the elastic potential energy of the second elastic rod 191 is used to drive the locking block 192 to reset, so that the locking block 192 can be re-engaged in the tooth gap of the driving wheel 4 to fix the current position of the support ring 7. Then, the pull rod 9 is pulled to drive the clamping block 10 to move, so that the clamping block 10 squeezes the elastic member 21 and disengages from the clamping groove 11. At this time, the limiting ring 8 can be unlocked, and the limiting ring 8 can be moved to the support ring 7. The puncture needle can be adjusted laterally by adjusting the position on the puncture needle. When the adjustment is completed, loosen the pull rod 9, and under the elastic force of the elastic member 21, move the card block 10 to re-insert it into the corresponding card slot 11, and then fix the puncture needle in the puncture device on the positioning ring 18 to perform puncture. It should be noted that the protective pad on the positioning ring 18 can slide with the puncture needle. When the medical staff pushes the puncture needle to move, the puncture needle can slide relative to the positioning ring 18, thereby realizing the puncture operation.

[0044] 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.

[0045] For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. When an element is referred to as being "assembled on", "installed on", "fixed on" or "set on" another element, it can be directly on the other element or there can also be a centered element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a centered element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and are not intended to be the only implementation method.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A cerebrovascular interventional puncture positioning device, comprising a headrest (1), characterized in that: Both sides of the headrest (1) are fixedly connected with a mounting mechanism (2); a side wall of the headrest (1) is fixedly connected with a base (3); a driving wheel (4) is rotatably connected inside the base (3); a driven wheel (5) is meshingly connected above the driving wheel (4); a rotating member (6) is fixedly connected to the top of the driven wheel (5); a supporting ring (7) is fixedly connected to the top of the rotating member (6); a limiting ring (8) is sleeved on the outer surface of the supporting ring (7); a pull rod (9) is slidably connected to the top of the limiting ring (8); a clamping block (10) is fixedly connected to the bottom end of the pull rod (9); and a clamping groove (11) adapted to the clamping block (10) is provided on the top side wall of the limiting ring (8); A support seat (12) is fixedly connected to the side wall of the limiting ring (8), a transmission shaft (13) is rotatably connected to the inner wall of the support seat (12), a worm wheel (14) is fixedly connected to the center of the transmission shaft (13), a worm (15) is meshingly connected to one side of the worm wheel (14), and the worm (15) is rotatably connected to the inner wall of the support seat (12); A positioning seat (16) is fixedly connected to the transmission shaft (13), a first elastic rod (17) is fixedly connected to the inner wall of the positioning seat (16), and a positioning ring (18) is fixedly connected to the end of the first elastic rod (17); A locking structure (19) is installed on the side wall of the base (3), and the locking mechanism acts on the driving wheel (4) to achieve the release and locking of the driving wheel (4).

2. The cerebrovascular interventional puncture positioning device according to claim 1, characterized in that: The mounting mechanism (2) comprises a fixing rod (201) fixedly connected to the side wall of the headrest (1); the bottom end of the fixing rod (201) is threadedly connected to a threaded rod (202); the top end of the threaded rod (202) is rotatably connected to a clamping plate (203); and the bottom end of the threaded rod (202) is fixedly connected to a first knob (204).

3. The cerebrovascular interventional puncture positioning device according to claim 2, characterized in that: One end of the driving wheel (4) is rotatably connected to the inner wall of the base (3) via a bearing, and the other end passes through the base (3) and is fixedly connected to a turning handle (20).

4. The cerebrovascular interventional puncture positioning device according to claim 2, characterized in that: The driven wheel (5) is arranged in an arc shape, and the rotating member (6) is rotatably connected to the base (3) via a pin shaft.

5. The cerebrovascular interventional puncture positioning device according to claim 4, characterized in that: The support ring (7) is configured to be in an arc shape, and the support ring (7) moves with the rotating member (6) as the rotation center.

6. The cerebrovascular interventional puncture positioning device according to claim 5, characterized in that: The pull rod (9) is arranged to penetrate the limiting ring (8), and an elastic member (21) is sleeved on the outer surface of the pull rod (9). One end of the elastic member (21) is connected to the limiting ring (8), and the other end is connected to the clamping block (10).

7. The cerebrovascular interventional puncture positioning device according to claim 6, characterized in that: One end of the worm (15) is rotatably connected to the inner wall of the support seat (12) via a bearing, and the other end passes through the support seat (12) and is fixedly connected to a second knob (22).

8. The cerebrovascular interventional puncture positioning device according to claim 7, characterized in that: There are two positioning rings (18), the inner walls of the two positioning rings (18) are both provided with protective pads, and the two positioning rings (18) are both arranged in an arc shape.

9. The cerebrovascular interventional puncture positioning device according to claim 8, characterized in that: The locking mechanism comprises a second elastic rod (191) fixedly connected to the inner wall of the base (3); the free end of the second elastic rod (191) is fixedly connected to a locking block (192); and the side wall of the locking block (192) is fixedly connected to a connecting rod (193).

10. The cerebrovascular interventional puncture positioning device according to claim 9, characterized in that: The locking block (192) and the driving wheel (4) are meshed with each other.

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