CN114132727A - Adjustment mechanism and loading attachment - Google Patents

Abstract

The invention relates to an adjusting mechanism and a feeding device. The adjusting mechanism is used for adjusting the position state of the needle, the adjusting mechanism comprises a bearing unit and a blanking unit, the bearing unit can bear the needle and comprises a calibration part used for adapting to the cutting edge of the needle, and the blanking unit is used for throwing the needle to the bearing unit. The feeding device is used for adjusting the position and feeding the needle tools and comprises a separating mechanism, a transferring mechanism and an adjusting mechanism, wherein the separating mechanism is used for separating the needle tools, the transferring mechanism is connected with the blanking unit and can drive the blanking unit to reciprocate between the separating mechanism and the bearing unit.

Description

Adjustment mechanism and loading attachment

Technical Field

The invention relates to the technical field of medical instrument production, in particular to an adjusting mechanism and a feeding device.

Background

In the production process of some medical consumables, certain consumable components are often required to be pre-adjusted or pre-positioned before being assembled, so that the consumable components can be assembled with other consumable components after being transferred to a next assembly station, a large amount of unnecessary adjustment time is saved, and the production efficiency of the medical consumables is improved.

Taking a production process of a puncture needle represented by a biopsy needle as an example, if the cutting edge angles of a plurality of needles in the same batch meet the preset orientation requirement and the orientation of the cutting edge of each needle is kept consistent, the assembly of the needles and other elements can be successfully completed, and the process for achieving the aim is called pre-adjustment of the needle position.

The existing puncture needle production equipment or method mainly has the following problems: the adjustment of the orientation angle of the cutting edge of the needle tool is difficult and troublesome, an ideal result can not be obtained by frequent debugging, and particularly, the consistency of the position state of the same batch is difficult to ensure for the needle tool with small specification; the special equipment or method can only meet the requirement of pre-adjusting the position state of the needle with the special specification, and once the specification of the needle is changed, the effect of adjusting the position state of the needle by using the original equipment/method is difficult to ensure. For example, the adjustment of the position of a large-sized needle is difficult, the adjustment power is amplified to easily damage the cutting edge of the needle or the adjustment device, the adjustment effect of the position of a small-sized needle is unstable, and the adjusted position of the same batch of needles is inconsistent.

Disclosure of Invention

In view of the above, there is a need for an adjusting mechanism for adjusting the position of a needle, the adjusting mechanism includes a carrying unit and a blanking unit, the carrying unit can receive the needle and includes a calibration portion adapted to the cutting edge of the needle, and the blanking unit is used for throwing the needle down to the carrying unit.

The adjusting mechanism provided by the invention can overcome the problem of poor pre-adjustment of the needle position state in the production process of the existing medical consumables, the feeding before the needle adjustment is finished by adopting a mode that the blanking unit throws the needle down to the bearing unit, the feeding mode can lead the needle to shake or vibrate in a short time after reaching the bearing unit, the calibrating part continuously contacts the edge of the needle at the moment until the edge of the needle is in full-circle contact with the calibrating part, the degree of freedom for limiting the further movement of the needle by the calibrating part is marked at the moment, the needle is prevented from continuously moving under the action of inertia, the throwing feeding mode can accelerate the progress of the full-circle contact of the edge of the needle and the calibrating part, the position and/or the angle of the needle relative to the calibrating part are continuously adjusted by the shaking or the vibration of the needle, so as to increase the probability that the edge of the needle is attached to the calibrating part, and reduce the difficulty of the adjustment of the needle position state, the success rate of single adjustment is obviously improved, in some occasions, even the calibration part does not need to be started, and the preset position state can be achieved only through the shaking or the vibration of the needle in the bearing unit after the needle is thrown off, so that the problem that the cutting edge or the calibration part of the needle is damaged by amplifying the adjustment power is avoided; in addition, no matter whether the needle is large or small, the position consistency can be ensured after the adjustment of the same batch is finished.

In one embodiment, the calibration portion is a magnetic member; alternatively, the calibration portion is a magnetizable member.

So set up, magnetism spare or magnetization spare can increase the regulation and the restraint effect of calibration portion to the needle utensil to improve the firm degree of needle utensil blade and whole week laminating with it, also improved the degree of difficulty of needle utensil motion in other directions or degree of freedom simultaneously, big specification needle utensil can be when being about to reach predetermineeing the attitude stop motion more easily, and small dimension needle utensil is then difficult to receive external disturbance and rocks, can keep more firmly in its predetermineeing the attitude.

In one embodiment, the adjustment mechanism further comprises an air flow generating unit having an air outlet opening towards the calibration portion.

With such an arrangement, the air flow generating unit is started and blows air to the needle tool through the air outlet, so that the direct contact between the entity adjusting component and the needle tool is cancelled, the edge of the cutting edge of the needle tool can be quickly and stably fixed and adapted to the calibrating part and form a whole-circumference fit, and the adjusting and restraining effects are the same as those of the calibrating part provided with the magnetic part or the magnetizable part in the embodiment.

In one embodiment, the bearing unit further comprises a stopping part for contacting the base part of the needle tool, and the calibration part comprises a calibration plane which is obliquely arranged relative to the stopping part, can be movably contacted with the tip of the needle tool and is used for forming full-circle fit with the edge of the cutting edge of the needle tool.

So set up, backstop portion can restrict the degree of freedom of needle along its axial motion, is favorable to the stability of needle blade edge and calibration portion adaptation, and the calibration plane can ensure behind calibration portion and the needle blade edge adaptation that the clearance can not appear between the two, just the problem that the needle floated for calibration portion can not appear yet, and the stationarity of whole week laminating further promotes.

In one embodiment, the carrying unit further comprises a guide portion, the guide portion defines a blanking space which is open upwards, and the opening width of the blanking space is larger than the width of the bottom wall of the blanking space.

So set up, the blanking space can make the needle utensil more easily thrown to the bearing unit, has improved the fault-tolerant rate that the needle utensil was thrown off to the blanking unit, even the position that the needle utensil was thrown off to the blanking unit can not strictly guarantee, the needle utensil also can be by guide portion sliding guide to the blanking space in, the guide portion can also accelerate the needle utensil to reach bearing unit bearing portion moreover.

In one embodiment, the area for adapting the cutting edge of the needle tool is inclined with respect to the vertical direction, and the calibrating portion is at least partially higher than the bottom wall of the blanking space.

So set up, in the diapire in-process that the needle utensil arrived blanking space, the needle point of needle utensil can take the lead to contact with calibration portion and come into life dynamic contact, consequently can carry out attitude control to the needle utensil in advance, takes the lead to make the needle utensil rotation and change its blade orientation angle voluntarily.

In one embodiment, the adjusting mechanism further comprises an adjusting drive source, and the adjusting drive source is connected with and can drive the bearing unit to vibrate.

So set up, adjust the driving source and can drive the needle utensil after the operation and rock, improve the probability of needle utensil blade edge and the laminating adaptation of calibration portion for the needle utensil reaches its progress of predetermineeing the attitude, improves the success rate of needle utensil attitude adjustment.

In one embodiment, the bearing unit further comprises a stopping part for contacting with the end surface of the needle tool base part, and the stopping part is a magnetic part; and/or the stopping part is a magnetizable part.

By the arrangement, the stopping part has the function of actively adsorbing the needle, the movement amplitude of the base part of the needle can be limited to a certain degree, particularly when the position of a large-size needle is adjusted, the magnetic attraction effect of the stopping part can overcome the self rotational inertia of the large-size needle, so that the needle can stop moving easily when the preset position is about to be reached, and the needle cannot continuously rotate under the inertia effect to miss the preset position.

In one embodiment, the adjusting mechanism further comprises a negative pressure generating assembly and is provided with a negative pressure channel communicated with the negative pressure generating assembly, one end of the negative pressure channel, which is relatively far away from the negative pressure generating assembly, extends towards the bearing unit, and the suction opening faces towards the blanking position of the blanking unit.

So set up, negative pressure takes place the subassembly and starts the back and can make the area that the needle utensil deviates from blanking unit one side negative pressure appear through its opening of breathing in to make the needle utensil adsorb to bearing unit passively on, can restrict the needle utensil at the motion degree of difficulty of other directions or degree of freedom equally, increase the restraint locking effect to the needle utensil.

In one embodiment, the carrying unit further comprises a telescopic adjusting component and a bearing part for carrying the needle tool, and the telescopic adjusting component can drive at least one of the aligning part and the bearing part to move relatively close to or away from the other one.

So set up, flexible adjusting part can change the distance between calibration portion and the supporting portion after the start, and then can be used for bearing the weight of the length that can bear of needle utensil on the change load-bearing unit, just so can the needle utensil of different specifications of adaptation.

The invention also provides a feeding device, which is used for feeding and pre-positioning the medical needle tool and comprises a separating mechanism, a transferring mechanism and the adjusting mechanism; the separating mechanism is used for separating the needling instrument, the transferring mechanism is connected with the blanking unit and can drive the blanking unit to reciprocate between the separating mechanism and the bearing unit.

The feeding device provided by the invention can separate part or single needle tool from a plurality of mixed stacked needle tools, and then adjust the direction of the cutting edge of the separated needle tool to enable the needle tool to reach the preset position state meeting the post-station assembling and positioning requirements, so that the needle tool is more orderly separated and adjusted.

In one embodiment, the separating mechanism comprises a hopper and a jacking unit, wherein the jacking unit at least partially extends into the hopper and can be matched with the needle tool, and the needle tool can be jacked up and separated through reciprocating lifting motion.

So set up, the exactness of separating mechanism separation needle utensil is high, and the disengaging process is simple, is difficult to cause the damage to being separated needle utensil or other needle utensils, also can not damage the needle utensil pointed end.

Drawings

Fig. 1 is a schematic structural diagram of a feeding device in an embodiment of the present invention at a first viewing angle;

FIG. 2 is an enlarged partial schematic view of the loading device shown in FIG. 1 at X;

FIG. 3 is a schematic view of a loading device in a second view according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of the loading device shown in FIG. 3 at Y;

FIG. 5 is a schematic view of the alignment portion of the adjustment mechanism in one embodiment of the present invention;

fig. 6 is a schematic structural diagram of a feeding device in a third viewing angle according to an embodiment of the present invention.

Description of reference numerals:

100. an adjustment mechanism; 200. a feeding device; 300. a needle set;

10. a carrying unit; 11. a calibration unit; 111. calibrating a plane; 12. a bearing part; 13. a stopper portion; 14. a guide portion;

20. a blanking unit; 30. adjusting the driving source; 210. a separating mechanism; 211. a hopper; 212. a jacking unit; 220. a transfer mechanism.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

The invention provides an adjusting mechanism 100 and a feeding device 200 with the same, wherein the feeding device 200 is used for completing feeding and prepositioning of a medical needle 300, and the adjusting mechanism 100 is used for adjusting the position of the medical needle 300. In the present embodiment, a puncture needle represented by a biopsy needle is taken as an example to explain the structural composition and the operation principle of the adjustment mechanism 100 and the feeding device 200 in detail. Hereinafter, unless otherwise specified, the needle set 300 refers to a hollow metal needle of a biopsy needle, and does not specifically limit whether it belongs to an inner needle or an outer needle of the biopsy needle.

By pre-positioning is meant: before the medical needle 300 is assembled with other elements (such as a needle seat), the axis of the needle 300 is adjusted to a certain inclination angle, the cutting edge of the needle 300 is adjusted to a certain angle, and then the needle 300 is moved to a subsequent assembly station through a blanking device, and after the needle 300 reaches the assembly station, the position of the needle 300 is not required to be adjusted, and the elements to be assembled and the needle 300 can be directly assembled into a whole. The bit state adjustment is a pre-adjustment operation for achieving the above purpose. By such a state pre-adjustment, it is possible to omit a waiting time for adjusting the relative position between the component to be assembled and the needle 300 to be assembled integrally.

In this embodiment, the needle 300 is integrally assembled with the needle holder, and the needle holder is connected to the base of the needle 300 relatively far from the needle tip, so that the needle holder assembly station is used to refer to the subsequent assembly station and the needle holder is used to refer to the component to be assembled, unless otherwise specified.

First, a loading device 200 is described, the loading device 200 includes a separating mechanism 210, a transferring mechanism 220, and an adjusting mechanism 100 provided by the present invention. The separating mechanism 210 can separate a plurality of needles 300 or a single needle 300 from a plurality of needles 300, and then the transferring mechanism 220 is used for transferring the separated needles 300 to the adjusting mechanism 100, and then the adjusting mechanism 100 is responsible for completing the posture adjustment of the separated needles 300, and the needles 300 with the posture adjustment completed are transferred to the needle seat assembling station by an external transferring mechanism. The transfer mechanism 220 is configured to be capable of reciprocating between the separation position and the blanking position, thereby transferring the separated pins 300 one by one. The separation position refers to a temporary stop position of the needle 300 relative to the separation mechanism 210 after the separation mechanism 210 successfully separates out a plurality of or a single needle 300 and waits for the transfer mechanism 220 to grab; the blanking position is a temporary position where the needle 300 is temporarily stopped with respect to the adjustment mechanism 100 when the transfer mechanism 220 drops the needle 300 to the adjustment mechanism 100.

Please refer to fig. 1. The separating mechanism 210 includes a hopper 211 for carrying a plurality of needles 300 and a lifting unit 212 which can reciprocate up and down with respect to the hopper 211. The hopper 211 comprises two side walls which are oppositely arranged and clamped to form a V-shaped included angle, a V-shaped trough is defined between the two side walls, and the side walls are used for guiding the needle tool 300 to fall into the bottom of the V-shaped trough; the jacking unit 212 comprises a positioning part which can extend into the hopper 211 from the bottom of the V-shaped trough and is used for being matched with the single needle tool 300, the extending direction of the positioning part is parallel to the side wall, and the V-shaped trough which is used for contacting the side wall of the needle tool 300 is defined by the part of the positioning part, extending into the hopper 211, of the jacking unit 212. Each time the jacking unit 212 extends into the V-shaped trough and continues to move upwards, a single needle 300 can be lifted by the positioning part and taken away from other needles 300, as long as a proper amount of needles 300 are kept at the bottom of the V-shaped trough at any time.

Further, the positioning portion is disposed obliquely with respect to the horizontal direction, which means that both ends of the positioning portion have a height difference in the vertical direction; the separating mechanism 210 further includes a separation preventing portion, at least a part of which is located at a lower end of the positioning portion in the vertical height. Therefore, after the jacking unit 212 acquires a single needle 300, under the action of the self-weight of the needle 300, the two ends of the needle 300 located in the positioning portion have a height difference, and one end of the needle 300 relatively close to the ground abuts against the anti-falling portion. In this way, when the needles 300 of the same batch/specification are separated, each needle 300 can maintain the same and determined parking position in the positioning portion, so that the transferring mechanism 220 can grasp the same specific clamping position on the needle 300 every time.

Further, the hopper 211 in this embodiment is also inclined with respect to the horizontal direction, and the inclination angle is the same as the positioning portion: in the bottom wall of the V-shaped trough, the height of the near end of the corresponding positioning part is lower than that of the far end of the corresponding positioning part; the retaining portion further extends to an opening edge of a side of the V-shaped groove relatively close to the ground to stop the plurality of needles 300 in the hopper 211. Preferably, the bottom wall of the V-shaped trough is parallel to the extending direction of the positioning part.

The adjusting mechanism 100 is described below, and the adjusting mechanism 100 includes a carrying unit 10 and a blanking unit 20. After the transfer mechanism 220 obtains the needle 300 and reaches the placement position, the needle 300 is directly dropped onto the carrier unit 10. The carrier unit 10 comprises a support portion 12 for laterally supporting the needle 300 and an alignment portion 11 for adapting the edge of the cutting edge of the needle 300, which cooperate to lift a single needle 300. The supporting portion 12 can make the tip of the needle 300 located thereon face the calibration portion 11, the needle 300 will not reach a stationary stable state relative to the supporting portion 12 immediately after being thrown to the bearing unit 10, but will shake or vibrate first, at this time, the calibration portion 11 applies a reaction force to the edge of the cutting edge through the edge of the movable contact needle 300 to change the position of the needle 300, the angle of the cutting edge of the needle 300 changes accordingly until the edge of the cutting edge is fixedly contacted with the calibration portion 11, at this time, the calibration portion 11 is fixedly matched with the cutting edge of the needle 300, and the needle 300 is stationary relative to the supporting portion 12 and is stably lifted by the bearing unit 10. The blanking unit 20 is mounted on the transferring mechanism 220 following the moving mechanism 220 to move synchronously with the moving mechanism 220, and includes a clamping jaw capable of switching an opening and closing angle, and the clamping jaw is released when reaching the upper part of the bearing unit 10.

Please refer to fig. 3 to 5. As shown in the figure, in the present embodiment, when the blanking unit 20 reaches the blanking position vertically above the carrying unit 10, the moving speed is reduced to zero, so as to drop the needle 300 vertically; the supporting part 12 defines a needle carrying groove extending to the calibration part 11 along a straight track, and the side wall and the bottom wall of the needle carrying groove limit the freedom degree of radial movement of the needle 300; the aligning member 11 has a predetermined inclination angle with respect to the extension direction of the supporting member 12/needle carrying groove, which is consistent with the inclination angle of the cutting edge of the needle 300 with respect to the axis of the needle 300, and the area of the aligning member 11 for fitting the cutting edge of the needle 300 is at least partially higher than the bottom wall of the needle carrying groove.

Preferably, the calibration portion 11 includes a calibration plane 111 for the edge of the needle 300 to be attached to the entire circumference, and the ellipse or ellipse-like figure defined by the edge of the needle 300 can be entirely located in the calibration plane 111, and the calibration plane 111 is at least partially higher than the bottom wall of the needle-carrying groove. Since the puncture needles represented by biopsy needles are standardized and the angle between the plane of the edge of the needle 300 and the axis of the needle 300 is a standard value, in the present embodiment, the inclination angle of the calibration plane 111 with respect to the extending direction of the supporting portion 12/needle carrying groove is the angle between the plane of the edge of the needle 300 and the axis of the needle 300, and the inclination trend of the calibration plane 111 is such that the edge is inclined toward the ground after the edge of the needle 300 and the calibration plane 111 are attached to each other over the entire circumference.

The adjustment principle of the adjustment mechanism 100 is as follows: when the blanking unit 20 releases the clamping jaws to throw the needle 300, the needle tip of the needle 300 can first contact the calibration part 11, and the two contact each other in a point contact manner, so that the calibration part 11 applies a pushing force to the needle 300. Since the cutting edge of the needle 300 is beveled, the needle 300 is instantly unbalanced and generates irregular shaking or vibration under the force of the calibration part 11, and at this time, the movement of the needle 300 includes a component of circumferential rotation around the axis thereof, which changes the angle of the cutting edge of the needle 300, so that the needle 300 starts to automatically adjust its posture under the combined action of the self-weight of the needle 300 and the calibration part 11.

Because the calibration part 11 has an inclined included angle relative to the extending direction of the support part 12 and the relative height relationship between the calibration part 11 and the support part 12, when the needle 300 reaches the bearing unit 10, the edge of the needle 300 has a probability of making full-circle contact with the calibration part 11, especially when the calibration part 11 is provided with a calibration plane 111, the full-circle contact means that the plane where the edge of the needle 300 is located coincides with the calibration plane 111, and the coincidence indicates that the needle 300 has reached the preset position at the moment, and then the calibration part 11 limits the degree of freedom of further movement of the needle 300, especially the degree of freedom of circumferential rotation of the needle 300 around the axis thereof, and prevents the needle 300 from continuing to move under the action of inertia; in addition, the supporting portion 12 limits the degree of freedom of the radial movement of the needle 300, i.e. the supporting portion 12 and the calibration portion 11 together limit the movement of the needle 300.

In this embodiment, the calibration portion 11 and the supporting portion 12 lift the needle 300 horizontally, the calibration plane 111 is inclined with respect to the vertical direction, and the inclination angle between the calibration plane 111 and the horizontal plane is consistent with the inclination angle of the cutting edge of the needle 300.

Optionally, at least one of the supporting portion 12 and the calibrating portion 11 includes a magnetic member; or at least one of the bearing portion 12 and the calibration portion 11 comprises a magnetizable member. Either a magnetic or magnetizable member may be used to attract the needle 300. The attraction is equivalent to strengthening the external force applied to the needle 300 by the supporting portion 12 and/or the calibration portion 11, providing an additional strengthened force field for the needle 300, and preferably, the calibration portion 11 is preferably provided as a magnetic member or a magnetizable member.

The beneficial effect who so sets up is: the magnetic attraction effect can not only improve the effect of attracting and fixing the needle 300, so that the needle 300 can be kept in the preset position after reaching the preset position, but also improve the difficulty of the needle 300 in moving in other degrees of freedom or directions. When the needle 300 to be adjusted is a large-size needle 300, the magnetic attraction can make the needle 300 which is about to reach the preset position stop moving more quickly and easily, and reduce the adverse effect caused by inertia; when the needle 300 to be adjusted is a small-sized needle 300, the magnetic attraction can restrain the needle 300 and improve the resistance to external interference, so that the needle can be more stably maintained in a predetermined position.

Optionally, the regulating mechanism 100 further comprises an air flow generating unit capable of forming a zone above the standard atmospheric pressure, the presence of which is capable of forming an air flow. The airflow generating unit has an air outlet opened toward the calibration portion 11, and the airflow flows to the calibration portion 11 through the air outlet, and when the tip of the needle 300 is located at the calibration portion 11, the airflow can apply pressure to the tip of the needle 300 to make the cutting edge of the needle 300 contact and fit the calibration portion 11. This adjustment has the same adjustment and restraint effect as the magnetic attraction solution in the above embodiment.

Referring to fig. 4 again, the carrying unit 10 further includes two sets of guiding portions 14 respectively disposed on the supporting portion 12 and the calibrating portion 11, each set of guiding portions 14 includes two guiding protrusions disposed side by side, an upward opening disposed blanking space is formed between the two guiding protrusions, and an opening width of the blanking space is greater than a width of a bottom wall of the blanking space. The needle carrying groove is a blanking space defined by two guide protrusions arranged on the bearing part 12; the calibration plane 111 is a bottom wall of the blanking space defined by the two guide protrusions disposed on the calibration portion 11.

In this embodiment, the blanking space defined by the two sets of guide portions 14 respectively extends along the same straight track to be used for guiding the pin 300 to enter and accommodate the pin 300, and no matter the guide portions 14 are located on the supporting portion 12 or the guide portions 14 are located on the calibrating portion 11, the width of the gap between the two sets of guide protrusions is linearly reduced along the direction close to the bottom wall of the blanking space, so that the blanking space is a V-shaped guide groove, and the two opposite sides of the two guide protrusions are both inclined planes relative to the bottom wall of the blanking space, so as to accelerate the guiding of the pin 300 to the blanking space.

It should be noted that the two sets of guide portions 14 are not essential to achieve the object of the present invention, and in other embodiments, the guide portions 14 may not be provided, or the two sets of guide portions 14 may be provided alternatively and not further developed.

Further, the adjusting mechanism 100 further includes an adjusting driving source 30 for connecting and vibrating the carrying unit 10. The purpose of the adjustment drive source 30 is to: the needle 300 is in an unbalanced state by moving the carrying unit 10, and the needle 300 is then moved by the calibration part 11 in a movable contact manner with the needle tip. The edge of the cutting edge of the needle 300 is adapted to the calibration part 11 with a probability as long as the needle 300 is moved.

Refer again to fig. 1, 3-4. In the present embodiment, the alignment portion 11 and the support portion 12 are provided so as to be capable of relative movement. The adjusting driving source 30 is connected to the calibration portion 11 and is capable of outputting reciprocating linear displacement to the calibration portion 11 along the extending direction of the needle carrying groove of the support portion 12 to drive the calibration portion 11 to reciprocate relative to the support portion 12, in the process, the tip of the needle 300 repeatedly contacts and separates from the calibration portion 11, the calibration portion 11 can drive the needle 300 to rotate around the axis circumference when contacting the tip of the needle 300 every time, and the angle of the cutting edge of the needle 300 is gradually closer to the angle of the cutting edge of the needle 300 in the preset position. It is understood that in other embodiments, the adjustment driving source 30 may also drive the connection support portion 12, and the track direction of the reciprocating displacement generated by the adjustment driving source 30 does not necessarily coincide with the extending direction of the needle carrying groove.

Further, the carrying unit 10 further includes a stopping portion 13 for contacting the base of the needle 300 (the end of the needle 300 away from the needle tip), and the stopping portion 13 is located at the end of the supporting portion 12 relatively away from the calibration portion 11. When the needle 300 is placed on the carrying unit 10, the stopping portion 13 corresponds to the base of the needle 300, and the stopping portion 13 limits the degree of freedom of the needle 300 in the axial direction thereof by contacting the base of the needle 300. When the adjusting driving source 30 drives the calibration part 11 and the supporting part 12 to move relatively, the stopping part 13 can prevent the needle 300 from separating from the supporting part 12.

Preferably, the stopper 13 comprises a magnetic member; alternatively, the stop 13 comprises a magnetizable member. The stopper 13 with magnetic attraction capability can further limit the movement of the needle 300 under the inertia effect, so that the needle 300 can more easily stop moving when reaching the preset position, and the needle can not miss the preset position due to the continuous movement under the inertia effect.

In one embodiment, the adjusting mechanism 100 further includes a negative pressure generating assembly, and has a negative pressure channel connected to the negative pressure generating assembly, the negative pressure channel extends toward the carrying unit 10 from an end away from the negative pressure generating assembly, and a suction opening of the negative pressure channel faces a position where the needle 300 is thrown off from the blanking unit 20. With such an arrangement, after the negative pressure generating assembly is started, a low pressure environment can be formed near the suction opening of the negative pressure channel, so as to generate an adsorption force on the needle 300, and the effect of the adsorption force is the same as that of the magnetic adsorption of the needle 300 by the calibration part 11/the supporting part 12, which is not described herein again.

Preferably, the negative pressure channel extends to the calibration part 11 in this embodiment, and the area of the calibration part 11 for fitting the needle 300 is penetrated, so that the suction force can be directly applied to the front end of the needle 300. Of course, in other embodiments, the suction opening of the negative pressure channel may also be provided in the support portion 12, or only on the side of the needle 300 facing away from the blanking position.

Optionally, the carrying unit 10 further comprises a telescopic adjustment assembly, and the calibration portion 11 and the supporting portion 12 are configured to be capable of relative movement along the extending direction of the needle carrying groove. The telescopic adjusting component can drive at least one of the calibrating part 11 and the supporting part 12 to move relatively close to or away from the other, so that the effective bearing length of the needle 300 which can be carried by the bearing unit 10 can be adjusted, the needle 300 can be adjusted adaptively according to the specification of the incoming needle 300, and the requirement of bearing and lifting the needles 300 with different specifications can be met.

The features of the above-described embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above-described embodiments are not described, but should be construed as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the features.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.

Claims (12)

1. An adjusting mechanism is used for adjusting the position state of a needle and is characterized by comprising a bearing unit and a blanking unit, wherein the bearing unit can bear the needle and comprises a calibration part used for adapting to the cutting edge of the needle, and the blanking unit is used for throwing the needle to the bearing unit.

2. The adjustment mechanism of claim 1, wherein the calibration portion is a magnetic member; alternatively, the calibration portion is a magnetizable member.

3. The adjustment mechanism according to claim 1 or 2, characterized in that it further comprises an air flow generating unit having an air outlet opening towards the calibrated portion.

4. The adjustment mechanism of claim 1, wherein the carrier unit further comprises a stop for contacting the needle base and a calibration plane disposed obliquely with respect to the stop, the calibration plane being capable of moving into contact with the needle tip and for forming a full circumferential abutment with the cutting edge of the needle.

5. The adjustment mechanism according to claim 1, wherein the carrying unit further comprises a guide portion defining a blanking space open upward, the blanking space having an opening width greater than a width of a bottom wall of the blanking space.

6. The adjustment mechanism according to claim 5, characterized in that the area of the calibration portion for adapting the cutting edge of the needle is inclined with respect to the vertical and that the calibration portion is at least partially higher than the bottom wall of the blanking space.

7. The adjustment mechanism of claim 1, further comprising an adjustment drive source coupled to and capable of vibrating the carrier unit.

8. The adjustment mechanism of claim 1, wherein the carrier unit further comprises a stop for contacting the end surface of the needle base, the stop being a magnetic member; and/or the stopping part is a magnetizable part.

9. The adjusting mechanism according to claim 1, further comprising a negative pressure generating assembly, and having a negative pressure channel communicating with the negative pressure generating assembly, wherein the negative pressure channel extends toward the carrying unit from an end away from the negative pressure generating assembly and the suction opening faces the blanking position of the blanking unit.

10. The adjustment mechanism of claim 1, wherein the carrier unit further comprises a telescopic adjustment assembly and a holder for carrying a needle, the telescopic adjustment assembly being capable of driving at least one of the alignment portion and the holder to move relatively closer to or away from the other.

11. A feeding device for feeding and pre-positioning a medical needle, wherein the feeding device comprises a separating mechanism, a transferring mechanism and an adjusting mechanism according to any one of claims 1 to 10; the separating mechanism is used for separating the needling instrument, and the transferring mechanism is connected with the blanking unit and can drive the blanking unit to reciprocate between the separating mechanism and the bearing unit.

12. A loading apparatus according to claim 11, wherein the separating mechanism comprises a hopper and a lifting unit, the lifting unit at least partially extending into the hopper and adapted to the needle, and capable of lifting and separating the needle by reciprocating up and down movement.

Images