CN115414123A - Roller separation structure and consumable box - Google Patents
Roller separation structure and consumable box Download PDFInfo
- Publication number
- CN115414123A CN115414123A CN202211002708.1A CN202211002708A CN115414123A CN 115414123 A CN115414123 A CN 115414123A CN 202211002708 A CN202211002708 A CN 202211002708A CN 115414123 A CN115414123 A CN 115414123A
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- roller
- guide shaft
- guide
- biasing member
- biasing
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- 238000000926 separation method Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 230000009471 action Effects 0.000 claims abstract description 20
- 238000005381 potential energy Methods 0.000 claims abstract description 16
- 230000004044 response Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003073 embolic effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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Classifications
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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
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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
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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
- A61B2034/301—Surgical robots for introducing or steering flexible instruments inserted into the body, e.g. catheters or endoscopes
Abstract
This specification discloses a gyro wheel isolating construction and consumptive material box, the structure includes: the first roller and the second roller are rotationally arranged, and the first roller is provided with a joint; a first biasing member that provides a biasing force to the first roller toward the second roller; a guide mechanism comprising: a guide shaft engaged with the engaging member; a second biasing member for providing a biasing force to the guide shaft away from the second roller; a linkage mechanism configured to move the guide shaft from the first position toward the second position based on the pressing action; when the guide shaft moves from the first position to the second position, the first biasing member can push the first roller to move, and the clamping gap is reduced; when the second biasing member releases elastic potential energy, the guide shaft resets from the second position to the first position, the guide shaft can drive the first roller to move through the joint member, and the clamping gap is increased. The application provides a gyro wheel isolating construction and consumptive material box be convenient for doctor's operation, can reach and realize gyro wheel separation and closed effect fast.
Description
Technical Field
The application relates to the technical field of medical equipment, in particular to a roller separating structure and a consumable box.
Background
Some mechanisms for delivering catheters or guidewires in current surgical robots typically take the form of a pair of rollers that are pressed against each other. The mechanism comprises: the driving wheel is usually connected with a driving meshing gear, the driven wheel is connected with a driven meshing gear, and the driving meshing gear and the driven meshing gear are meshed with each other. During operation, the motor is started, the motor drives the driving meshing gear to rotate, and then the driven meshing gear is driven to rotate, so that the driving wheel and the driven wheel can rotate clockwise and anticlockwise respectively, and friction force is generated to drive the catheter or the guide wire to move forward or retreat.
Since the guide wire or the catheter has different specifications, in order to be capable of adapting to catheters or guide wires with different sizes, the mechanism is often provided with a spring at one side of the driven wheel or the driving wheel. Meanwhile, when the catheter or the guide wire is placed or taken out, the driving wheel and the driven wheel need to be separated, and after the catheter or the guide wire is taken out or placed, the driving wheel and the driven wheel are closed.
At present, two main ways of separating and closing the driving wheel and the driven wheel are provided, one is that a doctor manually controls a motion driving module linked with the spring through a control to control the opening and closing of the roller; the other is that the doctor pulls the driving wheel and the driven wheel apart manually, and then utilizes the thrust of the spring to close the driving wheel and the driven wheel. However, both of the above methods are inconvenient for the surgeon to operate during the operation.
Disclosure of Invention
In order to solve at least one technical problem that exists among the prior art, this application provides a gyro wheel isolating construction and consumptive material box, and the doctor's operation of being convenient for can reach quick gyro wheel separation and closed effect of realizing.
In order to achieve the above purpose, the technical solution provided by the present application is as follows:
a roller detaching structure comprising:
the roller device comprises a first roller and a second roller which are rotatably arranged, wherein a clamping gap is formed between the first roller and the second roller, and the first roller is provided with a joint;
a first biasing member providing a biasing force to the first roller toward the second roller;
a guide mechanism comprising: a guide shaft engaged with the engagement member, the guide shaft being movable between a first position and a second position; a second biasing member for providing a biasing force to the guide shaft away from the second roller;
a linkage mechanism configured to move the guide shaft from a first position toward a second position based on a pressing action;
when the guide shaft moves from a first position to a second position, the first biasing member can push the first roller wheel to move, the second biasing member accumulates elastic potential energy, and the clamping gap is reduced; when the second biasing member releases elastic potential energy, the guide shaft is reset from the second position to the first position, the guide shaft can drive the first roller to move through the joint, and the clamping gap is increased.
As a preferred embodiment, a snap unit is formed between the guide shaft and the joint, the snap unit having an engaged state and a disengaged state;
when the guide shaft moves from the first position to the second position, the buckling unit is changed from the buckling state to the disengagement state, and the first biasing member can push the first roller and the joint member to move towards the second roller; when the guide shaft is reset from the second position to the first position, the buckling unit is changed from a disengagement state to a buckling state, and the guide shaft can drive the joint and the first roller to move away from the second roller.
As a preferred embodiment, the snap unit includes: a guide portion provided on the guide shaft, and an end portion of the engaging piece, the end portion of the engaging piece protruding into the guide portion, the guide portion being configured to allow the end portion of the engaging piece to rotate along an axis of the first roller in a disengaged state.
As a preferred embodiment, the guide portion is a long hole provided on the guide shaft, and the long hole has a first end and a second end opposite to each other in the extending direction of the long hole; when the buckle unit is in a disengagement state, the joint is positioned between the first end and the second end, and when the buckle unit is in a clamping state, the joint is abutted against the second end.
As a preferred embodiment, the structure comprises: the guide shaft moves between a first position and a second position along the extending direction of the groove, one end of the guide shaft extends into the groove, the other end of the guide shaft extends out of the fixing seat through the through hole, the second biasing part is sleeved on the guide shaft, the guide shaft is provided with an expanding section, one end of the second biasing part abuts against the expanding section, and the other end of the second biasing part abuts against the inner wall of the groove of the fixing seat.
As a preferred embodiment, the linkage mechanism includes: the pressing block is arranged in the groove, and when the guide shaft is located at the first position, the pressing block protrudes out of the surface of the fixed seat and can move downwards relative to the groove when pressing action is applied; the pressing shaft is arranged on the pressing block, the end part of the guide shaft extending into the groove is provided with an inclined plane, and the pressing shaft is abutted to the inclined plane.
As a preferred embodiment, the linkage mechanism further includes: the stop block is arranged in the fixed seat and used for limiting the position of the pressing shaft on the inclined surface.
As a preferred embodiment, the structure comprises: slide rail, slide and spring fixing base, the slide with the spring fixing base sets up on the slide rail, the slide can along the slide rail removes, first biasing piece sets up the spring fixing base with between the slide, be provided with first axis of rotation on the slide, first gyro wheel sets up on the first axis of rotation.
As a preferred embodiment, the engaging member is connected to an upper end of the first rotating shaft, and the engaging member is disposed coaxially with the first rotating shaft.
In a preferred embodiment, when the guide shaft is in the first position, the biasing force applied to the first roller by the first biasing member is equal to the biasing force applied to the first roller by the second biasing member.
As a preferred embodiment, the length of the guide portion satisfies the following formula:
W＝2(H×tanθ)-2S+D
wherein H × tan θ = Δ L;
wherein H represents the distance of downward movement of the briquette and is in mm; θ is expressed as the angle of the bevel in °; d is expressed as the diameter of the joint in mm; Δ L is expressed as a distance difference between the first position and the second position in mm; s represents the roller movement in mm determined from the nip gap and the guide wire size.
A consumable cartridge comprising: the linkage mechanism triggers pressing action in response to the closing of the cover, and the second biasing member releases elastic potential energy in response to the opening of the cover.
Has the beneficial effects that:
the utility model provides a gyro wheel isolating construction and consumptive material box that this application embodiment provided can be in response to the closing lid of consumptive material box and uncap the closure and the separation of action control gyro wheel. Specifically, when the cover of the doctor is closed, the linkage mechanism controls the guide shaft to move based on the pressing action, so that the first roller moves towards the second roller under the action of the first biasing member to realize the closing of the rollers; when the doctor uncaps, drive the guiding axle through the release of second biasing piece elastic potential energy and reset, the guiding axle drives first gyro wheel through the joint piece and overcomes the effort of first biasing piece and deviates from the removal of second gyro wheel to realize the separation of gyro wheel.
The application provides a gyro wheel isolating construction does not need doctor's operation controlling part, only needs realize the separation and the closure of the control gyro wheel of linkage when the doctor opens or closes the lid of consumptive material box. In addition, redundant active motion drive is not needed, the functions can be realized only through a simple mechanical structure, and the cost is reduced.
Specific embodiments of the present application are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the application may be employed. It should be understood that the embodiments of the present application are not so limited in scope.
Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.
It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive labor.
Fig. 1 is a schematic structural view of a roller separation structure provided in an embodiment of the present disclosure in a first view;
fig. 2 is a schematic structural view of a roller separation structure provided in an embodiment of the present disclosure at a second viewing angle;
fig. 3 is a schematic structural diagram of a fastening unit provided in an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a linkage mechanism provided in an embodiment of the present disclosure;
FIG. 5 is a cross-sectional view of FIG. 4;
fig. 6 is a schematic view illustrating a state where a guide shaft provided in an embodiment of the present disclosure is located at a first position and a second position;
fig. 7 is a schematic view illustrating a roller separating structure provided in an embodiment of the present disclosure in a state when a cover is closed;
fig. 8 is a schematic structural diagram of a slide rail and a slide seat provided in an embodiment of the present disclosure.
Description of reference numerals:
1. a first roller; 11. a first rotating shaft; 12. a joint; 2. a second roller; 31. a slide rail; 32. a spring fixing seat; 33. a slide base; 34. a first biasing member; 4. a guide shaft; 41. a long hole; 411. a first end; 412. a second end; 5. a second biasing member; 6. a linkage mechanism; 61. briquetting; 62. pressing the shaft; 63. a stopper; 64. a bevel; 7. a fixed seat; 8. a guide wire; l1, first position; l2, second position.
Detailed Description
While the invention will be described in detail with reference to the drawings and specific embodiments, it is to be understood that these embodiments are merely illustrative of and not restrictive on the broad invention, and that various equivalent modifications can be effected therein by those skilled in the art upon reading the disclosure.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
The roller separating structure and the consumable cartridge of the embodiment of the present specification will be explained and explained with reference to fig. 1 to 8. It should be noted that, in the embodiments of the present invention, like reference numerals denote like components. And for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments, and the descriptions of the same components may be mutually referred to and cited.
The present specification provides a roller separating structure, as shown in fig. 1 to 8, including: the roller device comprises a first roller 1 and a second roller 2 which are rotatably arranged, a clamping gap is formed between the first roller 1 and the second roller 2, and a joint 12 is configured on the first roller 1; a first biasing member 34 that provides the first roller 1 with a biasing force toward the second roller 2; a guide mechanism comprising: a guide shaft 4 engaged with the engaging member 12, the guide shaft 4 being movable between a first position L1 and a second position L2; a second biasing member 5 for providing a biasing force to the guide shaft 4 away from the second roller 2; a link mechanism 6 configured to move the guide shaft 4 from the first position L1 toward the second position L2 based on a pressing action; when the guide shaft 4 moves from the first position L1 to the second position L2, the first biasing member 34 can push the first roller 1 to move, the second biasing member 5 accumulates elastic potential energy, and the clamping gap is reduced; when the second biasing member 5 releases the elastic potential energy, the guide shaft 4 is reset from the second position L2 to the first position L1, the guide shaft 4 can drive the first roller 1 to move through the joint 12, and the clamping gap is increased.
The clamping gap between the first roller 1 and the second roller 2 is used for placing the slender medical instrument, and when the first roller 1 moves towards or away from the second roller 2, the size of the clamping gap can be changed, so that a doctor can take out or put in the slender medical instrument. The elongate medical instrument has an elongate shaft body which can be different types of medical instruments under different application scenarios, such as a guide wire, a guide catheter, a microcatheter, an embolic coil, a working catheter such as a balloon catheter, a suction catheter, an atherectomy catheter and the like, and the type of the elongate medical instrument is not limited in the present application. When the slender medical appliance is clamped between the pair of rollers, the rotation of the pair of rollers around the center of the rollers can generate rotation friction force, so that the slender medical appliance can be driven to advance and retract. When the slender medical instrument is pushed in and withdrawn, the slender medical instrument moves along the axis direction of the slender medical instrument, and the moving direction of the first roller 1 is perpendicular to the axis direction of the slender medical instrument.
Generally, the roller separation structure and the elongated medical device are disposed in the consumable box to isolate the external environment. When the slender medical instrument is taken out, the consumable box needs to be opened, and then the first roller 1 and the second roller 2 are separated, so that the clamping gap is increased; when surgery is required, the consumable cartridge needs to be closed and the first roller 1 and the second roller 2 are closed. Thus, when the consumable cartridge is open, the first roller 1 and the second roller 2 should be separated, and when the consumable cartridge is closed, the first roller 1 and the second roller 2 should be closed.
Specifically, when the doctor closes the cover, the cover of the consumable box can apply a downward pressing action to the linkage mechanism 6, and the linkage mechanism 6 controls the guide shaft 4 to move based on the pressing action, so that the first roller 1 moves towards the second roller 2 under the action of the first biasing member 34 to realize the closing of the rollers; when the doctor opens the cover, the guide shaft 4 is reset through the release of the elastic potential energy of the second biasing member 5, and the guide shaft 4 drives the first roller 1 to move away from the second roller 2 through the joint member 12 and overcome the acting force of the first biasing member 34, so that the separation of the rollers is realized.
In order to achieve the above object, when the guide shaft 4 moves from the first position L1 toward the second position L2, the first roller 1 needs to lose the constraint of the guide shaft 4 thereto so that the first roller 1 can be pushed by the first biasing member 34 to move toward the second roller 2. When the guide shaft 4 is returned from the second position L2 toward the first position L1, the guide shaft 4 needs to engage the first roller 1 so that the first roller 1 can move away from the second roller 2 against the urging force of the first biasing member 34. The first roller 1 is thus provided with an engagement member 12 for cooperation with the guide shaft 4, the engagement member 12 being arranged on the centre line of rotation of the first roller 1 in order not to interfere with the rotation of the first roller 1 about its own centre.
Further, the guide shaft 4 has a longitudinal extension direction, and the guide shaft 4 can move along the longitudinal extension direction when moving between the first position L1 and the second position L2. As in the embodiment shown in fig. 6 and 7, when the guide shaft 4 is in the first position L1, the lid of the consumable cartridge is in an open state, and the linkage mechanism 6 does not apply a pressing action; when the guide shaft 4 is located at the second position L2, the cover of the consumable box is in a closed state, the linkage mechanism 6 is applied with a pressing action, and the second biasing member 5 accumulates elastic potential energy and acts on the guide shaft 4. Since the movement of the guide shaft 4 occurs as a result of the closing action of the lid, the second biasing member 5 also acts on the lid of the consumable cartridge, and when the lid is to be opened, the second biasing member 5 can release the accumulated elastic potential energy to drive the guide shaft 4 to return.
When the guide shaft 4 is located between the first position L1 and the second position L2, the lid of the consumable cartridge is not fully opened, and the linkage mechanism 6 is not pressed to the limit. Thus, when the guide shaft 4 is located at the second position L2, the lid of the consumable cartridge should be in a closed state, the linkage mechanism 6 is pressed to the limit, and the guide shaft 4 moves to the limit position.
In the present description, a snap-in unit is formed between the guide shaft 4 and the joint 12, the snap-in unit having an engaged state and a disengaged state; when the guide shaft 4 moves from the first position L1 to the second position L2, the engaging unit is changed from the engaging state to the disengaging state, and the first biasing member 34 can push the first roller 1 and the engaging member 12 to move toward the second roller 2; when the guide shaft 4 is reset from the second position L2 to the first position L1, the locking unit is changed from the disengagement state to the engagement state, and the guide shaft 4 can drive the engaging member 12 and the first roller 1 to move away from the second roller 2.
Specifically, when the fastening unit is in a fastening state, the guide shaft 4 can drive the joint 12 to move together; in the disengaged state of the snap unit, the guide shaft 4 remains relatively independent of the engaging member 12, i.e. the engaging member 12 can move relative to the guide shaft 4. The buckle unit includes: a guide portion provided on the guide shaft 4, into which an end portion of the engaging piece 12 protrudes, and an end portion of the engaging piece 12 configured to allow the end portion of the engaging piece 12 to rotate along the axis of the first roller 1 in a disengaged state.
The guide part is arranged along the lengthwise extending direction of the guide shaft 4, the guide part can be a track groove arranged at the bottom of the guide shaft 4, and the joint 12 extends into the track groove and keeps a certain gap with the bottom of the track groove so as to avoid interference on the rotation of the joint 12; the guide portion may be a long hole 41 formed in the surface of the guide shaft 4, and the engaging member 12 may extend into the long hole 41. The guide portion has a radial dimension greater than the engagement member 12 to enable independent movement of the engagement member 12.
In one embodiment, as shown in fig. 3, the guide portion is a long hole 41 provided on the guide shaft 4, and the long hole 41 has a first end 411 and a second end 412 opposite to each other in the extending direction thereof; when the fastening unit is in the disengaged state, the engaging member 12 is located between the first end 411 and the second end 412, and when the fastening unit is in the engaged state, the engaging member 12 abuts against the second end 412. Specifically, when the locking unit is in the locked state, the engaging element 12 abuts against the second end 412 of the long hole 41, so that when the guide shaft 4 is reset to the first position L1, the guide shaft 4 can drive the engaging element 12 and the first roller 1 to move; when the latch unit is in the disengaged state, the engaging member 12 is separated from the second end 412 of the long hole 41 between the first end 411 and the second end 412, and the engaging member 12 is further moved in the long hole 41 by the urging of the first biasing member 34 until the first roller 1 and the second roller 2 are closed. The travel of the elongated hole 41 is required to keep the engaging member 12 between the first end 411 and the second end 412 when the roller is closed, i.e. the snap unit is kept disengaged.
As shown in fig. 4, the roller separating structure further includes: fixing base 7, fixing base 7 be provided with the recess and with the through-hole that the recess is linked together, guiding axle 4 along the extending direction of recess removes between primary importance L1 and second place L2, the one end of guiding axle 4 stretches into the recess, the other end of guiding axle 4 passes through the through-hole stretches out fixing base 7, 5 covers of second biasing spare are established on guiding axle 4, and are located in the recess.
When the roller separating structure is installed in the consumable box, since the linkage mechanism 6 is subjected to a series of linkage reactions by the movement of the cover of the consumable box, the guide mechanism and the linkage mechanism 6 need to be disposed at the upper portion of the consumable box and near the cover, and the first biasing member 34, the first roller 1, and the second roller 2 are located at the lower portion of the consumable box. The guide mechanism can form a whole through the fixing seat 7, and then the fixing seat 7 is arranged on the upper part of the consumable box. The second biasing member 5 is used for assisting the guide shaft 4 to reset, the second biasing member 5 is a spring, an expanding section can be arranged on the guide shaft 4, one end of the second biasing member 5 abuts against the expanding section, and the other end of the second biasing member 5 abuts against the inner wall of the groove of the fixed seat 7.
The linkage 6 moves the guide shaft 4 along its longitudinal extension between a first position L1 and a second position L2 in response to the closing of the lid. In some embodiments, the linkage mechanism 6 may be a link mechanism including a first link and a second link, the first link and the second link are hinged, the second link is hinged with the guide shaft 4, the first link presses downward in response to the closing action of the cover to move the second link, thereby moving the guide shaft 4 from the first position L1 toward the second position L2; when the cover is opened, the link mechanism returns to the original form by the second biasing member 5, and the guide shaft 4 is returned toward the first position L1.
Alternatively, in some possible embodiments, the linkage may be provided on the lid, which is moved from the first position L1 towards the second position L2 by pressing the guide shaft 4 when the lid is closed; when the cover is opened, the guide shaft 4 is driven to return from the second position L2 to the first position L1 by the second biasing member 5 because the guide shaft 4 loses the pressing force of the cover, that is, loses the pressing force of the linkage mechanism on the cover.
In one embodiment, as shown in fig. 5 to 7, the linkage mechanism 6 includes: a pressing block 61, wherein the pressing block 61 is arranged in a groove of the fixed seat 7, when the guide shaft 4 is located at the first position L1, the pressing block 61 protrudes out of the surface of the fixed seat 7 and can move downwards relative to the groove when a pressing action is applied; the pressing shaft 62 is arranged on the pressing block 61, an inclined surface 64 is arranged at the end part of the guide shaft 4 extending into the groove, and the pressing shaft 62 is abutted to the inclined surface 64.
The pressing block 61 may have a square structure, and the pressing shaft 62 is inserted into the pressing block 61. When the pressing piece 61 moves downward relative to the groove of the fixed seat 7, the pressing shaft 62 abuts against the inclined surface 64 and presses downward, so that the inclined surface 64 is pushed to move, and the guide shaft 4 is moved. When the second biasing member 5 releases the accumulated elastic potential energy, the guiding shaft 6 can be pushed to reset, and the inclined surface 64 can drive the pressing shaft 62 and the pressing block 61 to move upwards due to the loss of the pressure of the consumable cover above the pressing block 61, so that the pressing block 61 protrudes out of the surface of the fixed seat 7.
In one embodiment, as shown in fig. 3 and 6, the length of the guide portion on the guide shaft 4 satisfies the following formula:
W＝2(H×tanθ)-2S+D
wherein H × tan θ = Δ L;
wherein H represents a distance by which the press block 61 moves downward in mm; θ is expressed as the angle of the ramp 64 in °; d represents the diameter of the joint 12 in mm; Δ L is expressed as a distance difference between the first position L1 and the second position L2 in mm; s is expressed as the roller movement in mm determined from the nip gap and the size of the guide wire 8.
Specifically, it is assumed that the engaging piece 12 moves to the intermediate position of the guide portion on the guide shaft 4 in the case where the consumable cartridge is closed. S denotes a size of the first roller 1 pushed by the first biasing member 34. Under the condition that the consumable box is uncovered, the clamping clearance between the first roller 1 and the second roller 2 is a known quantity, and the first roller 1 is pushed to be closed with the second roller 2, so that the size of the guide wire 8 to be clamped can be determined to be S, and the type selection of the first biasing member 34 can be determined.
Of course, the size of the guide wire 8 clamped between the first roller 1 and the second roller 2 may be various, or the elongated medical device clamped between the first roller 1 and the second roller 2 is not limited to the guide wire 8, so that the value of S may be a non-fixed value, which has a certain range of values, so that the length of the guide portion may be a non-fixed value.
In the present embodiment, the link mechanism 6 further includes: and the stop 63 is arranged in the fixed seat 7 and used for limiting the position of the pressing shaft 62 on the inclined surface 64. As shown in fig. 4 and 5, the stopper 63 may have a horizontal section and a vertical section, the horizontal section may extend into the fixing base 7 and be located above the inclined plane 64, and when the guide shaft 4 is reset from the second position L2 to the first position L1, the pressing shaft 62 moves from the bottom to the upper part of the inclined plane 64 along the inclination angle of the inclined plane 64, and is limited by the horizontal section of the stopper 63 to be prevented from further moving upwards to separate from the inclined plane 64. The vertical section of the stop block 63 is positioned on the side surface of the fixed seat 7 and can limit the guide shaft 4.
In this specification, as shown in fig. 8, the roller separating structure includes: the roller device comprises a sliding rail 31, a sliding seat 33 and a spring fixing seat 32, wherein the sliding seat 33 and the spring fixing seat 32 are arranged on the sliding rail 31, the sliding seat 33 can move along the sliding rail 31, the first biasing member 34 is arranged between the spring fixing seat 32 and the sliding seat 33, a first rotating shaft 11 is arranged on the sliding seat 33, and the first roller 1 is arranged on the first rotating shaft 11.
The first biasing member 34 is a spring, and the first biasing member 34 maintains a certain elastic potential energy in an initial state, so that the engaging member 12 and the first roller 1 can be pushed to move when the guide shaft 4 is in a disengaged state with the engaging member 12. The slide rail 31 has a longitudinal extension and is parallel to the longitudinal extension of the guide shaft 4.
Further, the second roller 2 is connected with a second rotating shaft, the first rotating shaft 11 and the second rotating shaft may both be connected with a driver, and the driver may drive the first rotating shaft 11 and the second rotating shaft to rotate in opposite directions, for example, one rotates in a clockwise direction and the other rotates in a counterclockwise direction. Alternatively, one of the first rotating shaft 11 and the second rotating shaft is connected to an external driver, and power is transmitted between the first rotating shaft 11 and the second rotating shaft through a meshing gear, so that the pair of rollers rotate in opposite directions. Wherein the joint 12 is connected to an upper end of the first rotating shaft 11, and the joint 12 is coaxially disposed with the first rotating shaft 11.
Further, when the guide shaft 4 is in the first position L1, the biasing force applied to the first roller 1 by the first biasing member 34 is equal to the biasing force applied to the first roller 1 by the second biasing member 5, so as to maintain the separation between the first roller 1 and the second roller 2 in the state that the consumable cartridge is opened.
This specification also provides a consumable cartridge comprising: the roller separating structure is mounted in the box body, the linkage mechanism 6 triggers pressing action in response to the closing of the cover, and the second biasing member 5 releases elastic potential energy in response to the opening of the cover. The technical problem who solves of above-mentioned gyro wheel isolating construction can be realized to the consumptive material box to corresponding technological effect who reaches above-mentioned embodiment, specific this application is no longer repeated here.
The above embodiments are merely illustrative of the technical concepts and features of the present application, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present application and implement the present application, and not to limit the protection scope of the present application. All equivalent changes and modifications made according to the spirit of the present application should be covered in the protection scope of the present application.
It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes.
Claims (12)
1. A roller separating structure, comprising:
the roller device comprises a first roller and a second roller which are rotatably arranged, wherein a clamping gap is formed between the first roller and the second roller, and the first roller is provided with a joint;
a first biasing member that provides the first roller with a biasing force toward the second roller;
a guide mechanism comprising: a guide shaft engaged with the engagement member, the guide shaft being movable between a first position and a second position; a second biasing member for providing a biasing force to the guide shaft away from the second roller;
a linkage mechanism configured to move the guide shaft from a first position toward a second position based on a pressing action;
when the guide shaft moves from a first position to a second position, the first biasing member can push the first roller wheel to move, the second biasing member accumulates elastic potential energy, and the clamping gap is reduced; when the second biasing member releases elastic potential energy, the guide shaft is reset from the second position to the first position, the guide shaft can drive the first roller to move through the joint, and the clamping gap is increased.
2. The roller separating structure according to claim 1, wherein a snap unit is formed between the guide shaft and the engaging member, the snap unit having a snap-in state and a release state;
when the guide shaft moves from the first position to the second position, the buckling unit is converted from the buckling state to the disengaging state, and the first biasing part can push the first roller and the joint piece to move towards the second roller; when the guide shaft is reset from the second position to the first position, the buckling unit is changed from a disengagement state to a buckling state, and the guide shaft can drive the joint and the first roller to move away from the second roller.
3. The roller separating structure according to claim 2, wherein the catch unit includes: a guide portion provided on the guide shaft, and an end portion of the engaging piece, the end portion of the engaging piece protruding into the guide portion, the guide portion being configured to allow the end portion of the engaging piece to rotate along an axis of the first roller in a disengaged state.
4. The roller separating structure according to claim 3, wherein the guide portion is a long hole provided on the guide shaft, the long hole having opposite first and second ends in an extending direction thereof; when the buckle unit is in a disengagement state, the joint is positioned between the first end and the second end, and when the buckle unit is in a clamping state, the joint is abutted against the second end.
5. A roller separating structure according to claim 3, wherein said structure comprises: the guide shaft moves between a first position and a second position along the extending direction of the groove, one end of the guide shaft extends into the groove, the other end of the guide shaft extends out of the fixing seat through the through hole, the second biasing part is sleeved on the guide shaft, the guide shaft is provided with an expanding section, one end of the second biasing part abuts against the expanding section, and the other end of the second biasing part abuts against the inner wall of the groove of the fixing seat.
6. The roller separating structure according to claim 5, wherein the linkage mechanism includes: the pressing block is arranged in the groove, and when the guide shaft is located at the first position, the pressing block protrudes out of the surface of the fixed seat and can move downwards relative to the groove when pressing action is applied; the pressing shaft is arranged on the pressing block, the end part of the guide shaft extending into the groove is provided with an inclined plane, and the pressing shaft is abutted to the inclined plane.
7. The roller separating structure according to claim 6, wherein the linkage mechanism further comprises: the stop block is arranged in the fixed seat and used for limiting the position of the pressing shaft on the inclined surface.
8. The roller separation structure according to claim 1, wherein the structure comprises: slide rail, slide and spring fixing base, the slide with the spring fixing base sets up on the slide rail, the slide can along the slide rail removes, first biasing piece sets up the spring fixing base with between the slide, be provided with first axis of rotation on the slide, first gyro wheel sets up on the first axis of rotation.
9. The roller separating structure according to claim 8, wherein the engaging piece is connected to an upper end of the first rotating shaft, and the engaging piece is disposed coaxially with the first rotating shaft.
10. The roller separating structure according to claim 1, wherein the biasing force exerted by the first biasing member on the first roller is equal to the biasing force exerted by the second biasing member on the first roller when the guide shaft is in the first position.
11. The roller separating structure according to claim 6, wherein the length of the guide portion satisfies the following formula:
W＝2(H×tanθ)-2S+D
wherein H × tan θ = Δ L;
wherein H represents the downward movement distance of the pressing block and is expressed in mm; θ is expressed as the angle of the bevel in °; d is expressed as the diameter of the joint in mm; Δ L is expressed as a distance difference between the first position and the second position in mm; s represents the roller movement amount in mm determined from the nip gap and the guide wire size.
12. A consumable cartridge, comprising: a case and a cover for opening and closing the case, the case having the roller separation structure of any one of claims 1 to 11 mounted therein, wherein the linkage triggers a pressing action in response to the closing of the cover, and the second biasing member releases elastic potential energy in response to the opening of the cover.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211002708.1A CN115414123A (en) | 2022-08-19 | 2022-08-19 | Roller separation structure and consumable box |
| PCT/CN2023/079490 WO2024036919A1 (en) | 2022-08-19 | 2023-03-03 | Roller separation structure and consumable box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211002708.1A CN115414123A (en) | 2022-08-19 | 2022-08-19 | Roller separation structure and consumable box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115414123A true CN115414123A (en) | 2022-12-02 |
Family
ID=84198993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211002708.1A Pending CN115414123A (en) | 2022-08-19 | 2022-08-19 | Roller separation structure and consumable box |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115414123A (en) |
| WO (1) | WO2024036919A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024036919A1 (en) * | 2022-08-19 | 2024-02-22 | 苏州润迈德智能科技发展有限公司 | Roller separation structure and consumable box |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9326822B2 (en) * | 2013-03-14 | 2016-05-03 | Hansen Medical, Inc. | Active drives for robotic catheter manipulators |
| CN110652357B (en) * | 2019-09-19 | 2020-06-12 | 中国科学院自动化研究所 | Double-guide-wire or balloon vascular interventional instrument control device |
| CN110840565B (en) * | 2019-11-07 | 2020-10-16 | 北京唯迈医疗设备有限公司 | Automatic clamping and opening device for catheter of interventional operation robot |
| CN110859669A (en) * | 2019-12-10 | 2020-03-06 | 北京唯迈医疗设备有限公司 | Interventional operation robot catheter guide wire propulsion device |
| CN114515194A (en) * | 2022-02-17 | 2022-05-20 | 山东威高医疗科技有限公司 | Guide wire driving device of blood vessel interventional robot |
| CN114587616B (en) * | 2022-02-23 | 2023-04-25 | 上海奥朋医疗科技有限公司 | Guide wire catheter conveying device |
| CN115414123A (en) * | 2022-08-19 | 2022-12-02 | 苏州润迈德医疗科技有限公司 | Roller separation structure and consumable box |
-
2022
- 2022-08-19 CN CN202211002708.1A patent/CN115414123A/en active Pending
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2023
- 2023-03-03 WO PCT/CN2023/079490 patent/WO2024036919A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024036919A1 (en) * | 2022-08-19 | 2024-02-22 | 苏州润迈德智能科技发展有限公司 | Roller separation structure and consumable box |
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| Publication number | Publication date |
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| WO2024036919A1 (en) | 2024-02-22 |
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