CN109157325B - Catheter driving mechanism for glaucoma visco-angioplasty - Google Patents
Catheter driving mechanism for glaucoma visco-angioplasty Download PDFInfo
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- CN109157325B CN109157325B CN201811032812.9A CN201811032812A CN109157325B CN 109157325 B CN109157325 B CN 109157325B CN 201811032812 A CN201811032812 A CN 201811032812A CN 109157325 B CN109157325 B CN 109157325B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 31
- 208000010412 Glaucoma Diseases 0.000 title claims abstract description 18
- 238000002399 angioplasty Methods 0.000 title abstract description 10
- 238000000034 method Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 210000004204 blood vessel Anatomy 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000013013 elastic material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 210000003786 sclera Anatomy 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 210000001585 trabecular meshwork Anatomy 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/0008—Introducing ophthalmic products into the ocular cavity or retaining products therein
- A61F9/0017—Introducing ophthalmic products into the ocular cavity or retaining products therein implantable in, or in contact with, the eye, e.g. ocular inserts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/00781—Apparatus for modifying intraocular pressure, e.g. for glaucoma treatment
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- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Surgery (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention provides a catheter driving mechanism for glaucoma visco-angioplasty, and relates to the technical field of medical instruments. The method comprises the following steps: the gearbox is provided with an input shaft, a first output shaft and a second output shaft, the first output shaft is connected with the driving wheel, the second output shaft is connected with the swing assembly, and the input shaft extends out of the shell. When the pipe clamping device is used, the driving wheel and the driven wheel can be matched with each other to clamp the pipe between the driving wheel and the driven wheel. When the catheter is delivered, the driving wheel rotates to drive the driven wheel to rotate together, and the catheter is clamped between the driving wheel and the driven wheel, so that the catheter can axially move along with the rotation of the driving wheel and the driven wheel, and the delivery of the catheter is realized.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to a catheter driving mechanism for glaucoma visco-angioplasty.
Background
Glaucoma visco-angioplasty is based on an external Schlemm's canal (Schlemm's canal) incision, laser-guided light-conducting fiber into the Schlemm's canal, a 360 ° Schlemm's canal incision or dilatoplasty, to enhance the physiological drainage of the trabecular meshwork. Glaucoma viscoangioplasty catheter pushing: the physician inserts the microcatheter into the severed end of the Schlemm's canal and walks along the Schlemm's canal until it exits the contralateral severed end. If resistance is met during the advancing process of the catheter, the catheter is retreated and then advanced repeatedly. If the catheter is adducted into the sclera, the teeth and the temples are used for pressurizing the head end of the catheter in the sclera side direction at the starting position of the catheter adducting so as to lead the catheter to be positioned in Schlemm's canal, and then the catheter is advanced continuously. If the catheter cannot be penetrated all the time, the catheter is removed, and the operation is repeated from the other broken end of the Schlemm's tube.
At present, the delivery of the glaucoma visco-angioplasty catheter is mainly manually completed by a doctor, and the ophthalmic surgery has the clinical difficulties of fine operation, long learning curve, limited operation field and operation posture under a microscope and the like. These disadvantages have prevented widespread use of glaucoma viscoangioplasty.
Accordingly, there is a need to provide a catheter drive mechanism for glaucoma viscoangioplasty.
Disclosure of Invention
The present invention provides a catheter drive mechanism for glaucoma mucoangioplasty, which aims to ameliorate the problem that the delivery of glaucoma mucoangioplasty catheters today is mainly done manually by the physician.
The invention is realized by the following steps:
a catheter drive mechanism for glaucoma viscoangioplasty, comprising: the device comprises a shell, a driving wheel, a driven wheel, a swinging assembly and a gear box, wherein the driving wheel, the driven wheel, the swinging assembly and the gear box are arranged in the shell, the driving wheel and the driven wheel can be matched with each other to clamp a guide pipe, the swinging assembly is arranged on the driven wheel and used for enabling the driven wheel to move along the axial direction, the gear box is provided with an input shaft, a first output shaft and a second output shaft, the first output shaft is connected with the driving wheel, the second output shaft is connected with the swinging assembly, and the input shaft extends out of the shell.
Further, in a preferred embodiment of the present invention, an axis of the first output shaft is parallel to an axis of the input shaft, and the driving wheel is connected to the first output shaft through a driving shaft.
Further, in a preferred embodiment of the present invention, the axis of the second output shaft is perpendicular to the axis of the input shaft, the swing assembly includes a sliding frame and a cam assembly, the driven wheel is rotatably disposed on the sliding frame, the cam assembly can drive the sliding frame to reciprocate along the axial direction of the driven wheel, and the second output shaft is connected to the cam assembly for driving the cam assembly.
Further, in a preferred embodiment of the present invention, a guide assembly is disposed at the bottom of the sliding frame, a guide direction of the guide assembly is parallel to an axis of the driven wheel, the guide assembly includes a slide way and a slide block, the slide way is disposed on an inner wall of the housing, the slide block is disposed on the slide way and is fixedly connected to the bottom of the sliding frame, and a sliding direction of the slide block is parallel to the axis of the driven wheel.
Further, in a preferred embodiment of the present invention, a top pillar abutting against the cam assembly is disposed on one side of the sliding frame close to the cam assembly, and an elastic member is disposed on one side of the sliding frame far from the cam assembly.
Further, in a preferred embodiment of the present invention, a roller is disposed at one end of the top pillar near the cam assembly, and the roller abuts against the cam assembly.
Further, in a preferred embodiment of the present invention, the cam assembly includes a cam and a support seat, and the cam is rotatably disposed on the support seat.
Further, in a preferred embodiment of the present invention, an elastic clamping assembly is disposed on the sliding frame, and the driven wheel is rotatably disposed on the elastic clamping assembly, and the elastic clamping assembly is configured to enable the driven wheel and the driving wheel to elastically clamp the conduit.
Further, in a preferred embodiment of the present invention, the elastic clamping assembly includes guide posts, guide blocks, and elastic members, the guide posts are disposed on both sides of the driven wheel, each guide post is sleeved with the guide block and the elastic member, the guide blocks are located between the driven wheel and the elastic members, and the driven wheel is rotatably disposed between the two guide blocks.
Further, in a preferred embodiment of the present invention, the driven wheel is connected to the guide block through a bearing bracket.
The invention has the beneficial effects that: when the catheter driving mechanism is used, the driving wheel and the driven wheel can be matched with each other to clamp the catheter between the driving wheel and the driven wheel. When the catheter is delivered, the driving wheel rotates to drive the driven wheel to rotate together, and the catheter is clamped between the driving wheel and the driven wheel, so that the catheter can axially move along with the rotation of the driving wheel and the driven wheel, and the delivery of the catheter is realized. The invention provides a catheter driving mechanism, wherein a driving device such as a motor is not arranged in a shell, but an input shaft of a gear box extends out of the shell and is connected with the motor arranged outside. So, at the postoperative, only need with the casing handle can. The motor does not need to be discarded together, the operation cost is reduced, and the waste is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of the internal structure of a catheter drive mechanism for glaucoma visco-angioplasty, in accordance with an embodiment of the present invention;
FIG. 2 is a schematic external view of a catheter drive mechanism for glaucoma visco-angioplasty, in accordance with an embodiment of the present invention;
FIG. 3 is a side view of a catheter drive mechanism for glaucoma viscoangioplasty, in accordance with an embodiment of the present invention.
Icon: a housing 1; a driving wheel 2; a driven wheel 3; a bearing frame 4; a drive shaft 5; a first output shaft 6; a gear case 7; a second output shaft 8; a support base 9; a cam 10; a top pillar 11; a slideway 12; a slider 13; a carriage 14; a guide post 15; a guide block 16; a spring 17; a roller plunger 18; a rotating frame 19; a positioning plate 20; a positioning post 21; a catheter holder 22.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
When in use, the driving wheel 2 and the driven wheel 3 can be mutually matched to clamp the conduit between the driving wheel 2 and the driven wheel 3. When the catheter is delivered, the driving wheel 2 rotates to drive the driven wheel 3 to rotate together, and the catheter is clamped between the driving wheel 2 and the driven wheel 3, so that the catheter can move along the axial direction along with the rotation of the driving wheel 2 and the driven wheel 3, and the delivery of the catheter is realized.
Further, in the present embodiment, the driving wheel 2 is fixedly connected with the inner wall of the housing 1 through the bearing bracket 4. The driving shaft can not shake when rotating, and the driving wheel 2 is more stable when working. Specifically, the bearing frame 4 is disposed on two sides of the driving wheel 2, and the driving wheel 2 can rotate along the axis relative to the bearing frame 4.
Further, in the present embodiment, the driving pulley 2 and the driven pulley 3 are both made of an elastic material. When the driving wheel 2 and the driven wheel 3 which are made of elastic materials are used for clamping the motor, the damage to the conduit can be reduced. Preferably, in the present embodiment, the driving pulley 2 and the driven pulley 3 are made of a rubber material.
Further, in this embodiment, the catheter driving mechanism further includes a guiding assembly, the guiding assembly includes two catheter brackets 22, and the two catheter brackets 22 are respectively disposed on two opposite side surfaces of the housing 1 and have corresponding positions. Specifically, the conduit support 22 includes a conduit pipe and a connecting piece, the connecting piece is sleeved on the conduit pipe and is fixedly connected with the conduit pipe, one end of the conduit pipe is located inside the casing 1 and extends to the joint of the driving wheel 2 and the driven wheel 3, the other end of the conduit pipe is located outside the casing 1, and the connecting piece is fixedly connected with the casing 1. When a catheter is installed, the catheter is inserted into the catheter tube of the catheter holder 22 on one side and extends out of the catheter tube of the catheter holder 22 on the other side. The catheter bracket 22 can guide the catheter and prevent the catheter from moving radially when moving axially to affect the delivery effect of the catheter.
Further, in this embodiment, a swing assembly and a gear box 7 are further disposed inside the housing 1, the swing assembly is disposed on the driven wheel 3 and is used for enabling the driven wheel 3 to move along the axial direction, the gear box 7 has an input shaft, a first output shaft 6 and a second output shaft 8, and the first output shaft 6 is connected with the driving wheel 2 and is used for driving the driving wheel 2 to rotate. The second output shaft 8 is connected with the swing assembly for driving the swing assembly. The input shaft extends outside the housing 1 for connection with an external drive such as a motor. The gear box 7 can drive the driving wheel 2 and the swinging component to work simultaneously under the condition of using one motor.
The catheter driving mechanism provided by the embodiment is mainly used in the field of medical operation. In performing surgery, medical instruments are required to meet adequate sterilization standards. The existing conduit driving mechanism has more parts in the shell 1, can not be thoroughly sterilized, and thus belongs to a disposable product. And the motors of the existing catheter driving mechanisms are all installed inside the housing 1. Therefore, the operation cost is high and great waste is caused.
In the catheter driving mechanism according to the present embodiment, the housing 1 is not provided with a driving device such as a motor, but the input shaft of the gear box 7 is extended to the outside of the housing 1 to connect the motor provided outside. So, at the postoperative, only need with casing 1 handle can. The motor does not need to be discarded together, the operation cost is reduced, and the waste is reduced.
Meanwhile, because the precision requirement of glaucoma visco-angioplasty on the operation is extremely high, and because the motor is arranged in the shell 1 and the parameters of the motors in different batches of devices are different, the motor is recalibrated before each operation so as to ensure the requirement on the precision of the operation. The catheter driving mechanism provided by the present embodiment uses an external motor instead of a motor inside the housing 1. It is possible to operate using the same motor each time. Therefore, the problem that the motor needs to be calibrated before operation every time is solved. Greatly increasing the efficiency of the operation.
Further, in the present embodiment, the axis of the first output shaft 6 is parallel to the axis of the input shaft. The first output shaft 6 and the input shaft may be the same shaft, which is called as a main shaft in this embodiment, one end of the main shaft close to the driving wheel 2 is the first input shaft, and the end extending out of the housing 1 is the input shaft, so that the first output shaft 6 and the input shaft can rotate synchronously. In particular, the driving wheel 2 is connected with the first output shaft 6 through the driving shaft 5.
The axis of the second output shaft 8 is perpendicular to the axis of the input shaft. The second output shaft 8 and the main shaft are two separated shafts which are perpendicular to each other, and a bevel gear structure is arranged between the two shafts, so that the main shaft can drive the second output shaft 8 to rotate when rotating. The bevel gear structure comprises two bevel gears which are matched with each other, wherein one bevel gear is sleeved on the main shaft, and the other bevel gear is arranged at the end part of one end, close to the main shaft, of the second output shaft 8. The structure of the gear box 7 enables the gear box 7 to simultaneously drive the driving wheel 2 and the swinging component to work under the condition of using one motor.
Further, in the present embodiment, the swing assembly includes a sliding frame 14 and a cam assembly which are arranged inside the housing 1, and the driven wheel 3 is rotatably arranged on the sliding frame 14 and can move along with the sliding frame 14. The second output shaft 8 is connected to the cam assembly for driving the cam assembly, which is capable of driving the carriage 14 to reciprocate in the axial direction of the driven wheel 3.
Further, in the present embodiment, the bottom of the carriage 14 is provided with a guide assembly, the guide direction of which is parallel to the axis of the driven wheel 3. Specifically, the guide assembly comprises a slide way 12 and a slide block 13, the slide way 12 is arranged on the inner wall of the shell 1, the slide block 13 is arranged on the slide way 12 and is fixedly connected with the bottom of the sliding frame 14, and the sliding direction of the slide block 13 is parallel to the axis of the driven wheel 3. The sliding rail 12 and the sliding block 13 can guide the sliding frame 14, and prevent the sliding frame 14 from deviating from a preset track when swinging, which affects the delivery effect of the catheter.
Further, in the present embodiment, the cam assembly includes a cam 10 and a support seat 9, and the cam 10 is rotatably disposed on the support seat 9. The second output shaft 8 is connected with the axis of the cam 10, and when the second output shaft 8 rotates, the cam 10 is driven to rotate together. The sliding frame 14 is provided with a top pillar 11 abutting against the cam assembly at one side close to the cam assembly, and the end of the top pillar 11 abuts against the curved surface of the cam 10, so that the cam 10 can be jacked to drive the sliding frame 14 to move when rotating. And one side far away from the cam component is provided with an elastic component. One end of the elastic member is connected to the carriage 14, and the other end abuts against the inner wall of the housing 1. When the cam 10 is pushed to the top, the resilient member will exert a resilient force on the carriage 14 in the direction of the cam 10, so that the carriage 14 will not be able to return to its position when it is moved to the far end.
Further, in the present embodiment, a roller is disposed at one end of the top pillar 11 near the cam assembly, and the roller abuts against the cam assembly. The cam 10 can be more smoothly pushed against the top column 11, and the smoothness of the swing of the driven wheel 3 is improved.
Further, in the present embodiment, the elastic member is a spring 17 or a roller plunger 18. In this embodiment, the roller plunger 18 is used as the elastic member, and one end of the roller plunger 18 having the roller is abutted against the inner wall of the housing 1.
Further, in this embodiment, an elastic clamping assembly is further disposed inside the housing 1, the elastic clamping assembly is disposed on the sliding frame 14, and the driven wheel 3 is rotatably disposed on the elastic clamping assembly. The elastic clamping assembly is used for enabling the driven wheel 3 and the driving wheel 2 to elastically clamp the conduit. Compared with rigid clamping of a fixed position and a clamping force, elastic clamping can guarantee the clamping effect on the conduit, can reduce the damage to the conduit, and avoids the damage to the conduit caused by overlarge clamping force and the influence on the operation effect.
Further, in this embodiment, the elastic clamping assembly includes a guide post 15, a guide block 16 and an elastic member, the guide post 15 is disposed on both sides of the driven wheel 3, and the guide post 15 is disposed on the sliding frame 14. Of course, if the embodiment is implemented without the carriage 14, the guide column 15 can also be directly connected to the housing 1. The guiding direction, i.e. the length direction, of the guiding post 15 is perpendicular to the catheter delivery direction.
All the cover is equipped with guide block 16 and elastic component on each guide post 15, follows driving wheel 3 and rotates and set up between two guide blocks 16, and is concrete, follows driving wheel 3 and is connected with guide block 16 through bearing frame 4. And the guide block 16 is located between the driven wheel 3 and the elastic element, and the elastic element can apply an elastic force towards the driving wheel 2 to the guide block 16, so that the driven wheel 3 can be matched with the driving wheel 2 to elastically clamp the catheter. In this embodiment, the elastic member is a spring 17.
Meanwhile, in the present embodiment, the elastic member may be provided on the carriage 14 and abut against the driven pulley 3. The elastic member directly applies elastic force to the driven pulley 3 without moving the driven pulley 3 through the guide block 16. When the arrangement is adopted, the elastic piece can use the roller plunger 18, and the roller of the roller plunger 18 is abutted to the driven wheel 3.
Further, in this embodiment, the conduit driving mechanism further includes a connecting assembly, the connecting assembly is sleeved on the input shaft of the gear box 7, and the connecting assembly is used for connecting the input shaft with an external driving device such as a motor. The connecting assembly can be connected with an external driving device, so that the connection between the conduit driving mechanism and the external driving device is more stable.
Further, in this embodiment, the connection assembly includes a positioning plate 20 and a rotating frame 19, the positioning plate 20 is sleeved on the input shaft and is fixedly connected with the housing 1, the rotating frame 19 is sleeved on the positioning plate 20, and an internal thread is provided on the rotating frame 19. The rotary frame 19 is rotatable about the axis of the input shaft. In specific application, the motor or other external driving device is provided with an external thread matched with the internal thread on the rotating frame 19. When the pipe driving mechanism is connected, the motor is connected with the input shaft, meanwhile, the internal thread of the rotating disc is in contact with the external thread on the motor, and the rotating disc is rotated to enable the internal thread and the external thread to be matched with each other, so that the connection of the motor and the pipe driving mechanism is realized.
Further, in the present embodiment, a positioning column 21 is disposed on a side of the positioning plate 20 away from the housing 1. Be equipped with the locating hole that matches with reference column 21 on the motor, reference column 21 inserts in the locating hole when connecting, prevents motor installation angle mistake, and the angle mistake that so can place the motor and the parameter when leading to the operation changes and influences the operation precision.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A catheter drive mechanism for glaucoma viscoangioplasty, comprising: the guide pipe clamping device comprises a shell, a driving wheel, a driven wheel, a swinging assembly and a gear box, wherein the driving wheel, the driven wheel, the swinging assembly and the gear box are arranged in the shell, the driving wheel and the driven wheel can be matched with each other to clamp a guide pipe, the swinging assembly is arranged on the driven wheel and used for enabling the driven wheel to move along the axial direction, the gear box is provided with an input shaft, a first output shaft and a second output shaft, the first output shaft is connected with the driving wheel, the second output shaft is connected with the swinging assembly, and the input shaft extends out; the axis of the second output shaft is perpendicular to the axis of the input shaft, the swing assembly comprises a sliding frame and a cam assembly, the driven wheel is rotatably arranged on the sliding frame, the cam assembly can drive the sliding frame to reciprocate along the axial direction of the driven wheel, and the second output shaft is connected with the cam assembly and used for driving the cam assembly; the sliding frame is provided with an elastic clamping assembly, the driven wheel is rotatably arranged on the elastic clamping assembly, and the elastic clamping assembly is used for enabling the driven wheel to be capable of elastically clamping the guide pipe with the driving wheel.
2. The catheter drive mechanism of claim 1, wherein the axis of the first output shaft is parallel to the axis of the input shaft, and the drive wheel is connected to the first output shaft by a drive shaft.
3. The catheter driving mechanism according to claim 1, wherein a guiding assembly is disposed at the bottom of the sliding frame, a guiding direction of the guiding assembly is parallel to an axis of the driven wheel, the guiding assembly comprises a sliding way and a sliding block, the sliding way is disposed on an inner wall of the housing, the sliding block is disposed on the sliding way and is fixedly connected with the bottom of the sliding frame, and a sliding direction of the sliding block is parallel to the axis of the driven wheel.
4. The catheter drive mechanism of claim 1, wherein the carriage is provided with a top post for abutment with the cam assembly on a side thereof adjacent the cam assembly and a resilient member on a side thereof remote from the cam assembly.
5. The catheter drive mechanism of claim 4, wherein the top post has a roller adjacent one end of the cam assembly, the roller abutting the cam assembly.
6. The catheter drive mechanism of claim 1, wherein the cam assembly includes a cam and a bearing, the cam being rotatably disposed on the bearing.
7. The catheter driving mechanism according to claim 1, wherein the elastic clamping assembly comprises guide posts, guide blocks and elastic members, the guide posts are arranged on both sides of the driven wheel, the guide blocks and the elastic members are sleeved on each guide post, the guide blocks are located between the driven wheel and the elastic members, and the driven wheel is rotatably arranged between the two guide blocks.
8. The catheter drive mechanism of claim 7, wherein the driven wheel is coupled to the guide block by a bearing bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811032812.9A CN109157325B (en) | 2018-09-05 | 2018-09-05 | Catheter driving mechanism for glaucoma visco-angioplasty |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811032812.9A CN109157325B (en) | 2018-09-05 | 2018-09-05 | Catheter driving mechanism for glaucoma visco-angioplasty |
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| CN109157325A CN109157325A (en) | 2019-01-08 |
| CN109157325B true CN109157325B (en) | 2020-01-14 |
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| CN109821138B (en) * | 2019-01-29 | 2020-07-03 | 燕山大学 | Minimally invasive vascular intervention surgical robot catheter and guide wire propulsion mechanism |
| CN111939433A (en) * | 2020-08-19 | 2020-11-17 | 深圳海医达高分子科技有限公司 | Medical catheter device |
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| ES2842454T3 (en) * | 2012-03-20 | 2021-07-14 | Sight Sciences Inc | Eye delivery systems |
| CN202776978U (en) * | 2012-09-06 | 2013-03-13 | 叶开升 | Electronic Chinese medicine acupuncture point massage bandage system |
| US11129962B2 (en) * | 2013-11-26 | 2021-09-28 | Biosense Webster (Israel) Ltd. | Robotic assister for catheter insertion |
| CN204484299U (en) * | 2015-01-30 | 2015-07-22 | 乐普（北京）医疗器械股份有限公司 | A kind of magnetic navigation ablation catheter pusher |
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