WO2022258018A1 - Slave end guide wire/catheter twisting apparatus for interventional surgical robot - Google Patents
Slave end guide wire/catheter twisting apparatus for interventional surgical robot Download PDFInfo
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- WO2022258018A1 WO2022258018A1 PCT/CN2022/097916 CN2022097916W WO2022258018A1 WO 2022258018 A1 WO2022258018 A1 WO 2022258018A1 CN 2022097916 W CN2022097916 W CN 2022097916W WO 2022258018 A1 WO2022258018 A1 WO 2022258018A1
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- Prior art keywords
- rubbing
- catheter
- guide wire
- groups
- clamping
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/30—Surgical robots
- A61B34/35—Surgical robots for telesurgery
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/70—Manipulators specially adapted for use in surgery
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/0105—Steering means as part of the catheter or advancing means; Markers for positioning
- A61M25/0116—Steering means as part of the catheter or advancing means; Markers for positioning self-propelled, e.g. autonomous robots
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
- A61M25/09041—Mechanisms for insertion of guide wires
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/30—Surgical robots
- A61B2034/303—Surgical robots specifically adapted for manipulations within body lumens, e.g. within lumen of gut, spine, or blood vessels
Definitions
- the invention relates to a device in the field of medical equipment robots, in particular to a device for rubbing a guide wire/catheter from the end of an interventional surgery robot.
- Intervention therapy is a kind of minimally invasive treatment using modern high-tech means—that is, under the guidance of medical imaging equipment, special catheters, guide wires and other precision instruments are introduced into the human body to diagnose and locally treat pathological conditions in the body.
- Intervention therapy uses digital technology to expand the doctor's field of vision. With the help of the catheter, the guide wire extends the doctor's hands. Its incision (puncture point) is only the size of a grain of rice. It can treat many diseases that could not be treated in the past without cutting human tissue. Diseases that require surgical treatment or medical treatment are not effective, such as tumors, hemangiomas, various hemorrhages, etc. Interventional therapy has the characteristics of no surgery, less trauma, quick recovery and good effect. It is the development trend of future medicine.
- vascular interventional surgery doctors need to receive X-ray radiation for a long time. For this reason, a master-slave vascular interventional surgery robot with remote operation has been developed.
- the master-slave vascular interventional surgery robot can work in the environment of strong radiation, and the doctor controls it outside the radiation environment.
- the surgical robot In the process of advancing, retreating and rotating the guide wire (or catheter), the surgical robot needs to be driven by a corresponding transmission mechanism.
- the transmission mechanism of the existing surgical robot due to the unreasonable structural design, the transmission effect of the entire transmission mechanism is not good.
- the structure is relatively complicated, which increases the use cost of the product, which is not conducive to reducing medical costs and increasing the economic burden of patients.
- the overall volume of the transmission mechanism is too large, which is not conducive to the spatial layout of the surgical robot. In the actual use process, it also brings Come various inconveniences, affect the flexibility of use.
- a rubbing device for the guide wire/catheter at the slave end of an interventional surgery robot which is installed on the slave end of the interventional surgery robot for clamping and rotating the guide wire/catheter.
- the guide wire/catheter at the slave end of the interventional surgery robot includes a frame and a rubbing mechanism, and the rubbing mechanism includes two oppositely arranged clamping groups, a first driving assembly that drives the two clamping groups to approach along the first direction to clamp the guide wire/catheter, and drives the two clamping groups.
- the clamping group moves away in a second direction different from the first direction to actuate a second drive assembly for rotating the guidewire/catheter.
- the first driving assembly includes a first opener for driving the two clamping groups to clamp or release.
- the first switch is an electromagnetic switch.
- the first driving assembly includes a first driving motor for driving the two clamping groups to perform clamping or loosening.
- first direction and the second direction are perpendicular to each other.
- the two clamping groups include a first base frame, a first guide rod mounted on the first base frame, a rubbing block mounted on the first guide rod and capable of sliding along the first guide rod .
- first bottom frames of the two clamping groups are arranged opposite to each other, and the first driving assembly further includes a structure that is placed between the first bottom frames of the two clamping groups and allows the first bottom frames of the two clamping groups to The frame synchronizes the first linkage wheels approaching or moving away from each other along the first direction.
- first underframes of the two clamping groups are provided with locking teeth
- outer surface of the first linkage wheel is provided with locking teeth
- first linkage wheels are simultaneously engaged on the two sides through the locking teeth. on the first chassis of the clamping group.
- the second drive assembly includes a second drive motor that drives the two clamping groups to move away from each other along the second direction to rub the guide wire/catheter to rotate.
- the second drive assembly also includes two sliding seats, two first connecting rods respectively connecting the two sliding seats and the two rubbing blocks, and placing between the two sliding seats and allowing the two sliding seats to move synchronously along the The second interlocking wheels that are separated from each other in the second direction.
- the inner surfaces of the two sliding seats of the second driving assembly are provided with locking teeth, and the outer peripheral surface of the second linkage wheel is provided with locking teeth, and the two sliding seats of the second driving assembly are engaged in the On the second interlocking wheel, the second interlocking wheel is driven by the second driving motor.
- the frame is provided with two guide rails, and the two sliding seats of the second driving assembly are respectively slidably installed on the two guide rails.
- the guide wire/catheter rubbing device at the slave end of the interventional surgery robot includes two rubbing mechanisms, and the two rubbing mechanisms grip and rub the guide wire/catheter synchronously.
- the guide wire/catheter rubbing device at the slave end of the interventional surgery robot includes two rubbing mechanisms, and the two rubbing mechanisms alternately clamp and rub the guide wire/catheter.
- the rubbing device for the guide wire/catheter from the interventional surgery robot includes two rubbing mechanisms, one of which grips and rubs the guide wire/catheter, and the other rubbing mechanism One of the rubbing mechanisms loosens the guide wire/catheter and clamps the guide wire/catheter during the reset process.
- the guide wire/catheter rubbing device at the slave end of the interventional surgery robot also includes a support device, and the support device fixes the guide wire/catheter during the process of releasing the guide wire/catheter and resetting by the rubbing mechanism.
- the support device includes two support groups arranged opposite to each other, and a third drive assembly that drives the two support groups to approach along the first direction to clamp the guide wire/catheter.
- the two support groups include a second base frame, a second guide rod installed on the second base frame, a support block mounted on the second guide rod, and the second bases of the two support groups
- the racks are set relative to each other.
- the third driving assembly includes a third linkage wheel placed between the second chassis of the two supporting groups and allowing the second chassis of the two supporting groups to approach or move away from each other synchronously along the first direction , the inner side of the second underframe of the two support groups is provided with locking teeth, the outer surface of the third linkage wheel is provided with locking teeth, and the third linkage wheel is engaged with the two support groups through the locking teeth at the same time. on the second chassis.
- the third driving assembly includes a third driving motor for driving the two clamping groups to perform clamping or loosening.
- the third drive assembly includes a second shutter that drives the two support groups to clamp or release.
- the second switch is an electromagnetic switch.
- the frame includes a bottom plate and a shell mounted on the bottom plate, the shell is arranged in a hollow box structure, an opening is provided at the upper end of the shell, the rubbing mechanism is built in the shell, and the two The clamping group clamps the guidewire/catheter through the opening.
- two opposite guide grooves are provided at the edge positions on both sides of the opening, the guide grooves are arranged in a V shape, and the size of the opening gradually decreases from top to bottom.
- movable grooves are provided on the outer surfaces of the front and rear sides of the frame, and the groove shape of the movable grooves is V-shaped, and the movable grooves and guide grooves are aligned with each other.
- the frame also includes a cover installed on the top of the casing and can rotate around the casing, the cover includes a cover body and limit plates connected to both sides of the cover body, the limit plates are pivotally connected to On the groove wall of the movable groove, the face cover can rotate around the shell.
- a threading hole is formed between the limiting plate and the guide groove to allow the guide wire/catheter to pass through.
- the bottom plate is provided with a first chute and a second chute, the horizontal extension direction of the first chute and the second chute is consistent with the first direction, and the space in the first chute is The inside is wide and the outside is narrow, and the space inside the groove of the second chute is also wide inside and narrow outside.
- the wire introduction device for interventional surgery of the present invention is provided with a rubbing mechanism, and the rubbing mechanism includes two opposite clamping groups, a first driving assembly, and a second driving assembly, wherein the first driving assembly drives two The clamping groups approach each other along the first direction to clamp the guide wire/catheter, and the second drive assembly drives the two clamping groups to move away from each other along the second direction different from the first direction to rub the guide wire/catheter to rotate.
- the transmission effect is good, the structure is relatively simple, the use cost of the product is effectively reduced, and the economic burden of patients is reduced.
- the structure is compact, the space occupied is small, the practicability is strong, and it has strong promotional significance.
- Fig. 1 is the schematic structural view of the guide wire/catheter rubbing device from the end of the interventional surgery robot of the present invention
- Fig. 2 is an exploded view of the guide wire/catheter rubbing device from the end of the interventional surgery robot shown in Fig. 1;
- Fig. 3 is an exploded view from another angle of the end guide wire/catheter rubbing device of the interventional surgery robot shown in Fig. 2 .
- the present invention provides a guide wire/catheter rubbing device at the slave end of an interventional surgery robot, which is installed on the slave end of an interventional surgery robot to push a slender medical device (guide wire or catheter) 100 performs clamping, forward, backward, forward rotation, and reverse operations, and pushes the slender medical device 100, that is, the forward direction of the guide wire or catheter to allow the guide wire or catheter to move into the direction of the surgical patient's body, and the backward direction to allow the guide wire Or the direction in which the catheter enters and moves out of the patient's body, forward rotation refers to the direction in which the guide wire or catheter rotates into the patient's body, and reverse refers to the direction in which the guide wire or catheter rotates out of the patient's body.
- the rubbing device for the slave end guide wire/catheter of the interventional surgery robot includes a frame 10 and a rubbing mechanism 20.
- the rubbing mechanism 20 includes two oppositely arranged clamping groups 21, and drives the two clamping groups 21 to approach along the first direction.
- the first drive assembly for clamping the guide wire/catheter, the second drive assembly 23 for driving the two clamping groups 21 to leave along the second direction different from the first direction to rub the guide wire/catheter to rotate, the first direction and The second directions are perpendicular to each other.
- Both clamping groups 21 include a first base frame 211, a first guide rod 212 mounted on the first base frame 211, a first guide rod 212 mounted on the first guide rod 212 and capable of sliding along the first guide rod 212.
- the first chassis 211 of the two clamping groups 21 are arranged opposite to each other.
- the first drive assembly includes a first linkage that is placed between the first chassis 211 of the two clamping groups 21 and allows the first chassis 211 of the two clamping groups 21 to approach or move away from each other synchronously along the first direction. Wheel 222.
- the inner sides of the first underframes 211 of the two clamping groups 21 are provided with locking teeth, and the outer surface of the first linkage wheel 222 is provided with locking teeth, and the first linkage wheel 222 is engaged on both sides through the locking teeth.
- the first drive assembly is connected to the clamping group 21, and the first drive assembly includes a first switch 221 that drives the two clamping groups 21 to clamp or loosen.
- the first switch 221 is an electromagnetic clutch.
- the first drive assembly uses the first opener 221 to drive the two clamping groups 21 to perform clamping or loosening actions.
- the first drive assembly includes A first driving motor that drives the two clamping groups 21 to clamp or release, and the first driving motor is directly connected to the first linkage wheel 222 .
- the second drive assembly 23 includes a second drive motor 234 that drives the two clamping groups 21 to move away from each other along the second direction to rub the guide wire/catheter to rotate, two slide seats 232, and connect the two slide seats 232 and the two rub seats respectively.
- the two first connecting rods 231 of the block 213 and the second linkage wheel 233 placed between the two sliding seats 232 and allowing the two sliding seats 232 to move away from each other along the second direction synchronously.
- the inner surfaces of the two sliding seats 232 of the second driving assembly 23 are provided with locking teeth, and the outer peripheral surface of the second linkage wheel 233 is provided with locking teeth, and the two sliding seats 232 of the second driving assembly 23 are simultaneously Engaged with the second linkage wheel 233 , the second linkage wheel 233 is driven to rotate by the second drive motor 234 , and under the action of the second linkage wheel 233 , the sliding seat 232 is driven to move in reverse.
- the frame 10 is also provided with two guide rails 15, and the two slide seats 232 of the second driving assembly 23 are respectively slidably installed on the two guide rails 15, and the guide rails 15 guide the slide seats 232, thereby The slider 232 is moved in the second direction.
- the guide wire/catheter rubbing device at the slave end of the interventional surgery robot can also use two sets of rubbing mechanisms 20.
- the two rubbing mechanisms 20 clamp and rub the guide wire/catheter synchronously or alternately.
- one of the rubbing mechanisms 20 clamps and rubs the guide wire/catheter, and the other rubbing mechanism 20 loosens the guide wire/catheter in one of the rubbing mechanisms 20 And hold the guidewire/catheter during reduction.
- the two rubbing mechanisms 20 synchronously release or clamp and rub the guide wire/catheter.
- the guide wire/catheter rubbing device at the slave end of the interventional robot further includes a support device 30, which fixes the guide wire/catheter during the process of the rubbing mechanism 20 releasing the guide wire/catheter and resetting.
- the support device 30 includes two support groups 31 disposed opposite to each other, and a third driving assembly that drives the two support groups 31 to approach each other along a first direction to clamp the guide wire/catheter.
- the two support groups 31 each include two second base frames 311 , a second guide rod 312 mounted on the second base frame 311 , and a support block 313 mounted on the second guide rod 312 .
- the second underframes 311 of the two support groups 31 are arranged oppositely, and the third drive assembly also includes a second underframe 311 placed between the two support groups 31 and allowing the second underframes 31 of the two support groups 31 to 311 to synchronize the third linkage wheels 33 approaching or moving away from each other along the first direction.
- the inner sides of the second underframes 311 of the two supporting groups 31 are provided with locking teeth, and the outer surface of the third linkage wheel 33 is provided with locking teeth, and the third linkage wheel 33 is engaged with the two gears at the same time through the locking teeth.
- the third drive assembly is connected to the support group 31, and the third drive assembly includes a second opener 32 that drives the two support sets 31 to clamp or release.
- the second opener 32 32 is an electromagnetic switch.
- the third drive assembly uses the second shutter 32 to drive the two support groups 31 to perform clamping or loosening actions.
- the third drive assembly includes a drive The third driving motor for clamping or loosening by the two clamping groups 21, the third driving motor is directly connected to the second linkage wheel 233, and the third driving motor drives the two supporting groups 31 to perform the clamping or loosening action .
- the frame 10 includes a base plate 11, a housing 12 mounted on the base plate 11, a mounting plate 14 mounted on the base plate 11 and passing through the housing 12, a mounting plate 14 mounted on the top of the housing 12 and capable of rotating around the housing 12.
- Cover 13 the shell 12 is set in a hollow box structure, the upper end of the shell 12 is provided with an opening 121, and the edge positions on both sides of the opening 121 are provided with two guide grooves 122 oppositely arranged, and the guide grooves 122 are set in a V shape , the size of the opening 121 gradually decreases from top to bottom.
- the guide wire/catheter can be installed more conveniently, and when the rubbing mechanism 20 and the supporting device 30 release the guide wire/catheter, the V-shaped The guide groove can support the guide wire/catheter, and the outer sides of the front and rear sides of the frame 10 are provided with movable grooves 123, and the groove shape of the movable groove 123 is also V-shaped. 122 are aligned with each other.
- the face cover 13 includes a cover body and limit plates 131 connected to both sides of the cover body.
- the limit plate 131 is pivotally connected to the groove wall of the movable groove 123.
- the face cover 13 can rotate around the shell 12.
- a threading hole is formed between the limiting plate 131 and the guide groove 122 .
- the bottom plate 11 is provided with a first chute 111 and a second chute 112, and the first chute 111 and the second chute 112 are respectively arranged on both sides of the mounting plate 14, and the first chute 111 and the second chute 112 are arranged on both sides of the mounting plate 14 respectively.
- the horizontal extension direction of the second chute 112 is parallel to each other, and the horizontal extension direction of the first chute 111 is consistent with the first direction, the space in the groove of the first chute 111 is wide inside and narrow outside, and the second chute 111 is narrow in the outside.
- the space in the groove of 112 is also wide inside and narrow outside.
- the second chassis 311 of the support group 31 is installed on the second chute 112 and can slide along the second chute 112.
- the first frame of the clamping group 21 The base frame 211 is installed on the first sliding slot 111 and can slide along the first sliding slot 111 .
- the first driving assembly of the rubbing mechanism 20 separates the clamping group 21, and the third driving assembly of the supporting device 30 separates the two supporting groups 31, and then separates the two supporting groups 31.
- the wire passes through the two guide grooves 122, the support blocks 313 of the two support groups 31, and the rubbing blocks 213 of the two clamping groups 21.
- the guide grooves 122 can support the wire rod in the vertical direction and cover the top cover 13.
- the two rubbing mechanisms 20 clamp and rub the guide wire/catheter synchronously or alternately.
- the structure of alternate rubbing is adopted, there is no need to use the supporting device 30.
- the other rubbing mechanism 20 rubs in one of the rubbing mechanisms.
- Mechanism 20 releases the guidewire/catheter and clamps the guidewire/catheter during reset.
- the first drive assembly drives the rubbing blocks 213 of the two clamping groups 21 to approach each other along the first direction to clamp the guide wire/catheter
- the second drive motor 234 of the second drive assembly 23 drives the second linkage wheel 233 to rotate , when the second linkage wheel 233 rotates, it drives the two sliding seats 232 to move in reverse, and the two sliding seats 232 drive the rubbing blocks 213 of the two clamping groups 21 to leave each other along the second direction to rub the guide wire through the first connecting rod 231
- another rubbing mechanism 20 or the supporting device 30 clamps the guide wire/catheter, and drives the clamping group 21 after the guide wire/catheter is rubbed to perform reset, so that it reciprocates alternately.
- the support device 30 does not clamp the guide wire/catheter, when the two clamping groups 21 of the rubbing mechanism 20 clamp the guide wire/catheter, it can be directly driven by the rubbing mechanism 20 Wire/catheter forward or
- the first driving assembly of the rubbing mechanism 20 can directly drive one clamping group 21 to move to the other clamping group 21 to clamp the guide wire/catheter, while the other clamping group 21 remains unchanged.
- one of the rubbing blocks 213 moves closer to the other rubbing block 213 to clamp the guide wire/catheter.
- the first drive assembly may not include the first linkage wheel 222 .
- the third drive assembly of the support device 30 can also directly drive one of the support groups 31 to move to the other support group 31 to clamp the guide wire/catheter, while the other support group 31 remains stationary, that is, one of the support blocks 313 is close to another support block 313 to clamp the guide wire/catheter, at this time, the third drive assembly may not include the third linkage wheel 33 .
- the second driving assembly 23 can only drive one clamping group 21 away from the other clamping group 21 in the second direction to rotate the guide wire/catheter. At this time, the second driving assembly 23 only includes a second driving motor 234 , a sliding seat 232 and a first connecting rod 231 connecting the sliding seat 232 and the rubbing block 213 .
- the wire introduction device for interventional surgery of the present invention is provided with a rubbing mechanism 20, and the rubbing mechanism 20 includes two opposite clamping groups 21, a first drive assembly, and a second drive assembly 23, wherein the first The driving assembly drives the two clamping groups 21 to approach each other along a first direction to clamp the guide wire/catheter, and the second drive assembly drives the two clamping groups 21 to move away from each other along a second direction different from the first direction to rub the guide wire / catheter rotation, the invention has good transmission effect, relatively simple structure, effectively reduces the use cost of the product, reduces the economic burden of the patient, and has a compact structure, takes up less space, has strong practicability, and has strong promotional significance.
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Abstract
Description
本申请要求申请日为2021年06月10日、申请号为202110649938.6、发明名称为“一种介入手术机器人从端导丝/导管搓动装置”的中国专利申请,以及申请日为2021年08月31日、申请号为202111010071.6、发明名称为“一种介入手术机器人从端导丝/导管搓动装置”的中国专利申请的优先权,此两件中国专利申请的全部内容通过引用结合在本申请中。This application requires a Chinese patent application with an application date of June 10, 2021, an application number of 202110649938.6, and an invention titled "A Device for Interventional Surgery Robot From the End Guidewire/Catheter Rubbing", and an application date of August 2021 On the 31st, the priority of the Chinese patent application with the application number 202111010071.6 and the title of the invention "a device for guiding wire/catheter rubbing from the end of an interventional surgery robot", the entire contents of these two Chinese patent applications are incorporated by reference in this application middle.
本发明涉及一种医疗器械机器人领域装置,尤其涉及一种介入手术机器人从端导丝/导管搓动装置。The invention relates to a device in the field of medical equipment robots, in particular to a device for rubbing a guide wire/catheter from the end of an interventional surgery robot.
介入治疗是利用现代高科技手段进行的一种微创性治疗--就是在医学影像设备的引导下,将特制的导管,导丝等精密器械,引入人体,对体内病态进行诊断和局部治疗。Intervention therapy is a kind of minimally invasive treatment using modern high-tech means—that is, under the guidance of medical imaging equipment, special catheters, guide wires and other precision instruments are introduced into the human body to diagnose and locally treat pathological conditions in the body.
介入治疗应用数字技术,扩大了医生的视野,借助导管,导丝延长了医生的双手,它的切口(穿刺点),仅有米粒大小,不用切开人体组织,就可治疗许多过去无法治疗,必须手术治疗或内科治疗疗效欠佳的疾病,如肿瘤,血管瘤,各种出血等。介入治疗具有不开刀,创伤小,恢复快,效果好的特点。是未来医学的发展趋势。Intervention therapy uses digital technology to expand the doctor's field of vision. With the help of the catheter, the guide wire extends the doctor's hands. Its incision (puncture point) is only the size of a grain of rice. It can treat many diseases that could not be treated in the past without cutting human tissue. Diseases that require surgical treatment or medical treatment are not effective, such as tumors, hemangiomas, various hemorrhages, etc. Interventional therapy has the characteristics of no surgery, less trauma, quick recovery and good effect. It is the development trend of future medicine.
血管介入手术中医生需要长期接收X射线的辐射,为此工程上开发了远隔操作的主从式血管介入手术机器人。主从式血管介入手术机器人可以在强烈辐射的环境下工作,医生则在射线环境之外对其控制。In vascular interventional surgery, doctors need to receive X-ray radiation for a long time. For this reason, a master-slave vascular interventional surgery robot with remote operation has been developed. The master-slave vascular interventional surgery robot can work in the environment of strong radiation, and the doctor controls it outside the radiation environment.
手术机器人在执行导丝(或导管)的进退、转动的过程中,需要相应的传动机构带动,然而,对于现有手术机器人的传动机构,由于结构设计不合理,整个传动机构的传动效果不佳,结构相对复杂,增大产品的使用成本,进而不利于降低医疗成本,增大患者的经济负担,而且传动机构整体体积过大,不利 于手术机器人空间布局,在实际中使用过程中,同样带来各种不便,影响使用的灵活性。In the process of advancing, retreating and rotating the guide wire (or catheter), the surgical robot needs to be driven by a corresponding transmission mechanism. However, for the transmission mechanism of the existing surgical robot, due to the unreasonable structural design, the transmission effect of the entire transmission mechanism is not good. , the structure is relatively complicated, which increases the use cost of the product, which is not conducive to reducing medical costs and increasing the economic burden of patients. Moreover, the overall volume of the transmission mechanism is too large, which is not conducive to the spatial layout of the surgical robot. In the actual use process, it also brings Come various inconveniences, affect the flexibility of use.
发明内容Contents of the invention
基于此,有必要针对现有技术中的不足,提供一种新型的介入手术机器人从端导丝/导管搓动装置。Based on this, it is necessary to address the deficiencies in the prior art and provide a novel device for rubbing the guide wire/catheter from the end of the interventional surgery robot.
一种介入手术机器人从端导丝/导管搓动装置,其装设于介入手术机器人从端上,用于实现导丝/导管的夹持、转动,所述介入手术机器人从端导丝/导管搓动装置包括机架及搓动机构,所述搓动机构包括相对设置的两夹持组、驱动两夹持组沿第一方向靠近以夹持导丝/导管的第一驱动组件、驱动两夹持组沿不同于第一方向的第二方向离开以搓动导丝/导管转动的第二驱动组件。A rubbing device for the guide wire/catheter at the slave end of an interventional surgery robot, which is installed on the slave end of the interventional surgery robot for clamping and rotating the guide wire/catheter. The guide wire/catheter at the slave end of the interventional surgery robot The rubbing device includes a frame and a rubbing mechanism, and the rubbing mechanism includes two oppositely arranged clamping groups, a first driving assembly that drives the two clamping groups to approach along the first direction to clamp the guide wire/catheter, and drives the two clamping groups. The clamping group moves away in a second direction different from the first direction to actuate a second drive assembly for rotating the guidewire/catheter.
进一步地,所述第一驱动组件包括驱动两夹持组进行夹持或松开的第一开合器。Further, the first driving assembly includes a first opener for driving the two clamping groups to clamp or release.
进一步地,所述第一开合器是电磁开合器。Further, the first switch is an electromagnetic switch.
进一步地,所述第一驱动组件包括驱动两夹持组进行夹持或松开的第一驱动电机。Further, the first driving assembly includes a first driving motor for driving the two clamping groups to perform clamping or loosening.
进一步地,所述第一方向和所述第二方向相互垂直。Further, the first direction and the second direction are perpendicular to each other.
进一步地,两所述夹持组均包括第一底架、装设于第一底架上的第一导杆、装设于第一导杆上并可沿第一导杆滑动的搓动块。Further, the two clamping groups include a first base frame, a first guide rod mounted on the first base frame, a rubbing block mounted on the first guide rod and capable of sliding along the first guide rod .
进一步地,两所述夹持组的第一底架相对设置,第一驱动组件还包括置于所述两夹持组的第一底架之间并让所述两夹持组的第一底架同步沿第一方向相互靠近或离开的第一联动轮。Further, the first bottom frames of the two clamping groups are arranged opposite to each other, and the first driving assembly further includes a structure that is placed between the first bottom frames of the two clamping groups and allows the first bottom frames of the two clamping groups to The frame synchronizes the first linkage wheels approaching or moving away from each other along the first direction.
进一步地,两所述夹持组的第一底架的内侧均设有卡齿,所述第一联动轮的外表面设有卡齿,所述第一联动轮通过卡齿同时啮合在两所述夹持组的第一底架上。Further, the inner sides of the first underframes of the two clamping groups are provided with locking teeth, and the outer surface of the first linkage wheel is provided with locking teeth, and the first linkage wheels are simultaneously engaged on the two sides through the locking teeth. on the first chassis of the clamping group.
进一步地,所述第二驱动组件包括驱动两夹持组沿第二方向相互离开以搓动导丝/导管转动的第二驱动电机。Further, the second drive assembly includes a second drive motor that drives the two clamping groups to move away from each other along the second direction to rub the guide wire/catheter to rotate.
进一步地,所述第二驱动组件还包括两滑座、分别连接两滑座与两搓动块 的两第一连杆及置于所述两滑座之间并让所述两滑座同步沿第二方向相互离开的第二联动轮,。Further, the second drive assembly also includes two sliding seats, two first connecting rods respectively connecting the two sliding seats and the two rubbing blocks, and placing between the two sliding seats and allowing the two sliding seats to move synchronously along the The second interlocking wheels that are separated from each other in the second direction.
进一步地,所述第二驱动组件的两滑座的内侧面均设有卡齿,所述第二联动轮的外圆周表面设有卡齿,所述第二驱动组件的两滑座同时啮合在第二联动轮上,由第二驱动电机驱动第二联动轮。Further, the inner surfaces of the two sliding seats of the second driving assembly are provided with locking teeth, and the outer peripheral surface of the second linkage wheel is provided with locking teeth, and the two sliding seats of the second driving assembly are engaged in the On the second interlocking wheel, the second interlocking wheel is driven by the second driving motor.
进一步地,所述机架上设有两导轨,所述第二驱动组件的两滑座分别滑动地装设于两导轨上。Further, the frame is provided with two guide rails, and the two sliding seats of the second driving assembly are respectively slidably installed on the two guide rails.
进一步地,所述介入手术机器人从端导丝/导管搓动装置包括两所述搓动机构,两所述搓动机构同步夹持并搓动导丝/导管。Further, the guide wire/catheter rubbing device at the slave end of the interventional surgery robot includes two rubbing mechanisms, and the two rubbing mechanisms grip and rub the guide wire/catheter synchronously.
进一步地,所述介入手术机器人从端导丝/导管搓动装置包括两所述搓动机构,两所述搓动机构交替夹持并搓动导丝/导管。Further, the guide wire/catheter rubbing device at the slave end of the interventional surgery robot includes two rubbing mechanisms, and the two rubbing mechanisms alternately clamp and rub the guide wire/catheter.
进一步地,所述介入手术机器人从端导丝/导管搓动装置包括两所述搓动机构,其中一所述搓动机构夹持并搓动导丝/导管,另一所述搓动机构在其一所述搓动机构松开导丝/导管并复位过程中夹持导丝/导管。Further, the rubbing device for the guide wire/catheter from the interventional surgery robot includes two rubbing mechanisms, one of which grips and rubs the guide wire/catheter, and the other rubbing mechanism One of the rubbing mechanisms loosens the guide wire/catheter and clamps the guide wire/catheter during the reset process.
进一步地,所述介入手术机器人从端导丝/导管搓动装置还包括支撑装置,在所述搓动机构松开导丝/导管并复位过程中,所述支撑装置固定导丝/导管。Further, the guide wire/catheter rubbing device at the slave end of the interventional surgery robot also includes a support device, and the support device fixes the guide wire/catheter during the process of releasing the guide wire/catheter and resetting by the rubbing mechanism.
进一步地,所述支撑装置包括相对设置的两支撑组、驱动两支撑组沿第一方向靠近以夹持导丝/导管的第三驱动组件。Further, the support device includes two support groups arranged opposite to each other, and a third drive assembly that drives the two support groups to approach along the first direction to clamp the guide wire/catheter.
进一步地,两所述支撑组均包括第二底架、装设于第二底架上的第二导杆、装设于第二导杆上的支撑块,两所述支撑组的第二底架相对设置。Further, the two support groups include a second base frame, a second guide rod installed on the second base frame, a support block mounted on the second guide rod, and the second bases of the two support groups The racks are set relative to each other.
进一步地,所述第三驱动组件包括置于两所述支撑组的第二底架之间并让两所述支撑组的第二底架同步沿第一方向相互靠近或离开的第三联动轮,两所述支撑组的第二底架的内侧均设有卡齿,所述第三联动轮的外表面设有卡齿,所述第三联动轮通过卡齿同时啮合在两所述支撑组的第二底架上。Further, the third driving assembly includes a third linkage wheel placed between the second chassis of the two supporting groups and allowing the second chassis of the two supporting groups to approach or move away from each other synchronously along the first direction , the inner side of the second underframe of the two support groups is provided with locking teeth, the outer surface of the third linkage wheel is provided with locking teeth, and the third linkage wheel is engaged with the two support groups through the locking teeth at the same time. on the second chassis.
进一步地,所述第三驱动组件包括驱动两夹持组进行夹持或松开的第三驱动电机。Further, the third driving assembly includes a third driving motor for driving the two clamping groups to perform clamping or loosening.
进一步地,所述第三驱动组件包括驱动两支撑组进行夹持或松开的第二开合器。Further, the third drive assembly includes a second shutter that drives the two support groups to clamp or release.
进一步地,所述第二开合器为电磁开合器。Further, the second switch is an electromagnetic switch.
进一步地,所述机架包括底板、装设于底板上的外壳,所述外壳呈中空的箱体结构设置,外壳上端设有一开口,所述搓动机构内置于所述外壳内,两所述夹持组通过该开口夹持导丝/导管。Further, the frame includes a bottom plate and a shell mounted on the bottom plate, the shell is arranged in a hollow box structure, an opening is provided at the upper end of the shell, the rubbing mechanism is built in the shell, and the two The clamping group clamps the guidewire/catheter through the opening.
进一步地,所述开口两侧的边缘位置设有相对设置的两导槽,所述导槽呈V形设置,其开口大小自上而下逐渐缩小。Further, two opposite guide grooves are provided at the edge positions on both sides of the opening, the guide grooves are arranged in a V shape, and the size of the opening gradually decreases from top to bottom.
进一步地,所述机架前后两侧的外侧面设有活动槽,所述活动槽的槽形呈V形设置,所述活动槽与导槽相互对齐。Further, movable grooves are provided on the outer surfaces of the front and rear sides of the frame, and the groove shape of the movable grooves is V-shaped, and the movable grooves and guide grooves are aligned with each other.
进一步地,所述机架还包括装设于外壳顶部并可以绕外壳转动的面盖,所述面盖包括盖体及连接于盖体两侧的限位板,所述限位板枢接于活动槽的槽壁上,面盖可以绕外壳转动,当面盖完全盖在开口上时,所述限位板与导槽之间形成一穿线孔让导丝/导管通过。Further, the frame also includes a cover installed on the top of the casing and can rotate around the casing, the cover includes a cover body and limit plates connected to both sides of the cover body, the limit plates are pivotally connected to On the groove wall of the movable groove, the face cover can rotate around the shell. When the face cover is completely covered on the opening, a threading hole is formed between the limiting plate and the guide groove to allow the guide wire/catheter to pass through.
进一步地,所述底板上设有第一滑槽及第二滑槽,所述第一滑槽与第二滑槽的水平延伸方向与第一方向一致,所述第一滑槽的槽内空间内宽外窄,所述第二滑槽的槽内空间同样内宽外窄。Further, the bottom plate is provided with a first chute and a second chute, the horizontal extension direction of the first chute and the second chute is consistent with the first direction, and the space in the first chute is The inside is wide and the outside is narrow, and the space inside the groove of the second chute is also wide inside and narrow outside.
综上所述,本发明介入手术线材导入装置通过设置搓动机构,所述搓动机构包括相对设置的两夹持组、第一驱动组件、第二驱动组件,其中,第一驱动组件驱动两夹持组沿第一方向相互靠近以夹持导丝/导管,第二会驱动组件驱动两夹持组沿不同于第一方向的第二方向相互离开以搓动导丝/导管转动,本发明传动效果好,结构相对简单,有效缩减产品的使用成本,减轻患者的经济负担,而且结构紧凑,占用空间较小,实用性强,具有较强的推广意义。To sum up, the wire introduction device for interventional surgery of the present invention is provided with a rubbing mechanism, and the rubbing mechanism includes two opposite clamping groups, a first driving assembly, and a second driving assembly, wherein the first driving assembly drives two The clamping groups approach each other along the first direction to clamp the guide wire/catheter, and the second drive assembly drives the two clamping groups to move away from each other along the second direction different from the first direction to rub the guide wire/catheter to rotate. The transmission effect is good, the structure is relatively simple, the use cost of the product is effectively reduced, and the economic burden of patients is reduced. Moreover, the structure is compact, the space occupied is small, the practicability is strong, and it has strong promotional significance.
图1为本发明介入手术机器人从端导丝/导管搓动装置的结构示意图;Fig. 1 is the schematic structural view of the guide wire/catheter rubbing device from the end of the interventional surgery robot of the present invention;
图2为图1所示介入手术机器人从端导丝/导管搓动装置的分解图;Fig. 2 is an exploded view of the guide wire/catheter rubbing device from the end of the interventional surgery robot shown in Fig. 1;
图3为图2所示介入手术机器人从端导丝/导管搓动装置另一角度的分解图。Fig. 3 is an exploded view from another angle of the end guide wire/catheter rubbing device of the interventional surgery robot shown in Fig. 2 .
为了使发明的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅用以解释发明,并不用于限定发明。In order to make the purpose, technical solution and advantages of the invention clearer, the invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the invention, not to limit the invention.
如图1至图3所示,本发明提供一种介入手术机器人从端导丝/导管搓动装置,其装设于介入手术机器人从端上,推动细长型医疗器械(导丝或导管)100执行夹持、前进、后退、正转、反转的操作,推动细长型医疗器械100即导丝或导管的前进指让导丝或导管位移进入手术病人身体的方向、后退指让导丝或导管进入位移退出手术病人身体的方向、正转指让导丝或导管旋转进入手术病人身体的方向、反转指让导丝或导管旋转退出手术病人身体的方向。As shown in Figures 1 to 3, the present invention provides a guide wire/catheter rubbing device at the slave end of an interventional surgery robot, which is installed on the slave end of an interventional surgery robot to push a slender medical device (guide wire or catheter) 100 performs clamping, forward, backward, forward rotation, and reverse operations, and pushes the slender
介入手术机器人从端导丝/导管搓动装置包括机架10及搓动机构20,所述搓动机构20包括相对设置的两夹持组21、驱动两夹持组21沿第一方向靠近以夹持导丝/导管的第一驱动组件、驱动两夹持组21沿不同于第一方向的第二方向离开以搓动导丝/导管转动的第二驱动组件23,所述第一方向和所述第二方向相互垂直。The rubbing device for the slave end guide wire/catheter of the interventional surgery robot includes a
两所述夹持组21均包括第一底架211、装设于第一底架211上的第一导杆212、装设于第一导杆212上并可沿第一导杆212滑动的搓动块213。两所述夹持组21的第一底架211相对设置。第一驱动组件包括置于所述两夹持组21的第一底架211之间并让所述两夹持组21的第一底架211同步沿第一方向相互靠近或离开的第一联动轮222。两所述夹持组21的第一底架211的内侧均设有卡齿,所述第一联动轮222的外表面设有卡齿,所述第一联动轮222通过卡齿同时啮合在两所述夹持组21的第一底架211上。所述第一驱动组件与夹持组21连接,所述第一驱动组件包括驱动两夹持组21进行夹持或松开的第一开合器221,本实施例中,所述第一开合器221是电磁开合器。Both clamping
可以在理解地,在本实施例中,第一驱动组件采用第一开合器221带动两夹持组21执行夹持或松开的动作,在其它实施例中,所述第一驱动组件包括驱动两夹持组21进行夹持或松开的第一驱动电机,所述第一驱动电机直接与第一联动轮222连接。It can be understood that in this embodiment, the first drive assembly uses the
所述第二驱动组件23包括驱动两夹持组21沿第二方向相互离开以搓动导 丝/导管转动的第二驱动电机234、两滑座232、分别连接两滑座232与两搓动块213的两第一连杆231及置于所述两滑座232之间并让所述两滑座232同步沿第二方向相互离开的第二联动轮233。所述第二驱动组件23的两滑座232的内侧面均设有卡齿,所述第二联动轮233的外圆周表面设有卡齿,所述第二驱动组件23的两滑座232同时啮合在第二联动轮233上,由第二驱动电机234驱动第二联动轮233转动,在第二联动轮233的作用下,带动滑座232反向运动。更优地,所述机架10上还设有两导轨15,所述第二驱动组件23的两滑座232分别滑动地装设于两导轨15上,导轨15对滑座232进行导向,从而使滑座232沿第二方向运动。The
所述介入手术机器人从端导丝/导管搓动装置也可以采用两组所述搓动机构20,工作时,两所述搓动机构20同步或交替夹持并搓动导丝/导管。当采用交替搓动的结构时,其中一所述搓动机构20夹持并搓动导丝/导管,另一所述搓动机构20在其一所述搓动机构20松开导丝/导管并复位过程中夹持导丝/导管。当采用同步搓动的结构时,两所述搓动机构20同步松开或夹持并搓动导丝/导管。The guide wire/catheter rubbing device at the slave end of the interventional surgery robot can also use two sets of rubbing
所述介入手术机器人从端导丝/导管搓动装置还包括支撑装置30,在所述搓动机构20松开导丝/导管并复位过程中,所述支撑装置30固定导丝/导管。The guide wire/catheter rubbing device at the slave end of the interventional robot further includes a
所述支撑装置30包括相对设置的两支撑组31、驱动两支撑组31沿第一方向相互靠近以夹持导丝/导管的第三驱动组件。两所述支撑组31均包括两第二底架311、装设于第二底架311上的第二导杆312、装设于第二导杆312上的支撑块313。The
两所述支撑组31的第二底架311相对设置,第三驱动组件还包括置于两所述支撑组31的第二底架311之间并让两所述支撑组31的第二底架311同步沿第一方向相互靠近或离开的第三联动轮33。两所述支撑组31的第二底架311的内侧均设有卡齿,所述第三联动轮33的外表面设有卡齿,所述第三联动轮33通过卡齿同时啮合在两所述支撑组31的第二底架311上。所述第三驱动组件与支撑组31连接,所述第三驱动组件包括驱动两支撑组31进行夹持或松开的第二开合器32,本实施例中,所述第二开合器32是电磁开合器。The
可以在理解地,在本实施例中,第三驱动组件采用第二开合器32带动两支撑组31执行夹持或松开的动作,在其它实施例中,所述第三驱动组件包括驱动两夹持组21进行夹持或松开的第三驱动电机,所述第三驱动电机直接与第二联动轮233连接,由第三驱动电机带动两支撑组31执行夹持或松开的动作。It can be understood that in this embodiment, the third drive assembly uses the
所述机架10包括底板11、装设于底板11上的外壳12、装设于底板11上并从外壳12内穿过的安装板14、装设于外壳12顶部并可以绕外壳12转动的面盖13,所述外壳12呈中空的箱体结构设置,外壳12上端设有一开口121,开口121两侧的边缘位置设有相对设置的两导槽122,所述导槽122呈V形设置,其开口121大小自上而下逐渐缩小,通过设置V形导槽122,可以更方便地将安装导丝/导管,并且搓动机构20和支撑装置30松开导丝/导管时,V形导槽可以对导丝/导管进行支撑,所述机架10前后两侧的外侧面设有活动槽123,所述活动槽123的槽形同样呈V形设置,所述活动槽123与导槽122相互对齐。The
所述面盖13包括盖体及连接于盖体两侧的限位板131,所述限位板131枢接于活动槽123的槽壁上,面盖13可以绕外壳12转动,当面盖13完全盖在开口121上时,所述限位板131与导槽122之间形成一穿线孔。The
所述底板11上设有第一滑槽111及第二滑槽112,所述第一滑槽111、第二滑槽112分别设于安装板14的两侧,所述第一滑槽111与第二滑槽112的水平延伸方向相互平行,并且第一滑槽111的水平延伸方向与第一方向一致,所述第一滑槽111的槽内空间内宽外窄,所述第二滑槽112的槽内空间同样内宽外窄,所述支撑组31的第二底架311装设于第二滑槽112上并可沿第二滑槽112滑动,所述夹持组21的第一底架211装设于第一滑槽111上并可沿第一滑槽111滑动。The
初始时,先打开机架10的面盖13,所述搓动机构20的第一驱动组件将夹持组21分开,所述支撑装置30的第三驱动组件将两支撑组31分开,再将线材从两导槽122、两支撑组31的支撑块313、两夹持组21的搓动块213穿过,导槽122可以在竖直方向对线材进行支撑,盖上面盖13。Initially, first open the
两所述搓动机构20同步或交替夹持并搓动导丝/导管。当采用交替搓动的结构时,则无需使用支撑装置30,当其中一所述搓动机构20夹持并搓动导丝/导管,另一所述搓动机构20在其一所述搓动机构20松开导丝/导管并复位过程 中夹持导丝/导管。The two rubbing
具体地,第一驱动组件驱动两夹持组21的搓动块213沿第一方向相互靠近以夹持导丝/导管,第二驱动组件23的第二驱动电机234带动第二联动轮233转动,第二联动轮233转动时,带动两滑座232反向运动,两滑座232通过第一连杆231带动两夹持组21的搓动块213沿第二方向相互离开以搓动导丝/导管转动,复位时,另一搓动机构20或支撑装置30夹紧导丝/导管,带动导丝/导管搓动后的夹持组21执行复位,如此交替往复。若开始时,所述支撑装置30没有夹紧导丝/导管,在所述搓动机构20的两夹持组21夹紧导丝/导管的情况下,可直接由所述搓动机构20带动导丝/导管正转或反转。Specifically, the first drive assembly drives the rubbing
在其它实施例中,可由搓动机构20的第一驱动组件直接驱动一所述夹持组21向另一夹持组21运动以夹持导丝/导管,而另一夹持组21保持不动,即其中一搓动块213相对于另一搓动块213靠近来夹持导丝/导管,这时,所述第一驱动组件可不包括第一联动轮222。所述支撑装置30的第三驱动组件也可直接驱动一所述支撑组31向另一支撑组31运动以夹持导丝/导管,而另一支撑组31保持不动,即其中一支持块313相对于另一支持块313靠近来夹持导丝/导管,这时,所述第三驱动组件可不包括第三联动轮33。同理,在其它实施例中,所述第二驱动组件23可仅驱动其中一夹持组21相对另一夹持组21沿第二方向离开以搓动导丝/导管转动。这时,所述第二驱动组件23仅包括第二驱动电机234、一滑座232和连接滑座232与搓动块213的一第一连杆231。In other embodiments, the first driving assembly of the rubbing
综上所述,本发明介入手术线材导入装置通过设置搓动机构20,所述搓动机构20包括相对设置的两夹持组21、第一驱动组件、第二驱动组件23,其中,第一驱动组件驱动两夹持组21沿第一方向相互靠近以夹持导丝/导管,第二会驱动组件驱动两夹持组21沿不同于第一方向的第二方向相互离开以搓动导丝/导管转动,本发明传动效果好,结构相对简单,有效缩减产品的使用成本,减轻患者的经济负担,而且结构紧凑,占用空间较小,实用性强,具有较强的推广意义。To sum up, the wire introduction device for interventional surgery of the present invention is provided with a rubbing
以上所述实施例仅表达了发明的一种实施方式,其描述较为具体和详细,但并不能因此而理解为对发明专利范围的限制。应当指出的是,对于本领域的 普通技术人员来说,在不脱离发明构思的前提下,还可以做出若干变形和改进,这些都属于发明的保护范围。因此,发明专利的保护范围应以所附权利要求为准。The above-mentioned embodiment only expresses an implementation mode of the invention, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the invention. It should be noted that for those skilled in the art, without departing from the concept of the invention, some modifications and improvements can be made, and these all belong to the protection scope of the invention. Therefore, the scope of protection of the invention patent shall be subject to the appended claims.
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| CN202111010071.6A CN113633389B (en) | 2021-06-10 | 2021-08-31 | Auxiliary end guide wire/catheter twisting device of interventional operation robot |
| CN202111010071.6 | 2021-08-31 |
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| CN113633389B (en) * | 2021-06-10 | 2022-08-09 | 深圳市爱博医疗机器人有限公司 | Auxiliary end guide wire/catheter twisting device of interventional operation robot |
| CN113749780B (en) * | 2021-08-10 | 2023-06-16 | 深圳市爱博医疗机器人有限公司 | Follow-on intervention operation robot is rubbed with hands from end seal wire pipe and is moved device |
| CN115517767A (en) * | 2022-01-29 | 2022-12-27 | 深圳市爱博医疗机器人有限公司 | Intervene medical instrument auxiliary device |
| CN114587604B (en) * | 2022-03-02 | 2024-05-28 | 深圳爱博合创医疗机器人有限公司 | Interventional operation robot driving base |
| CN114534069A (en) * | 2022-03-08 | 2022-05-27 | 何献春 | Guide wire tractor for coronary heart disease interventional therapy |
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